Add output_type to bfd_link_info
[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
92b93329 11fragment <<EOF
252b5132
RH
12/* This file is is generated by a shell script. DO NOT EDIT! */
13
14/* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME}
b90efa5b 15 Copyright (C) 1991-2015 Free Software Foundation, Inc.
252b5132
RH
16 Written by Steve Chamberlain <sac@cygnus.com>
17 ELF support by Ian Lance Taylor <ian@cygnus.com>
18
f96b4a7b
NC
19 This file is part of the GNU Binutils.
20
21 This program is free software; you can redistribute it and/or modify
22 it under the terms of the GNU General Public License as published by
23 the Free Software Foundation; either version 3 of the License, or
24 (at your option) any later version.
25
26 This program is distributed in the hope that it will be useful,
27 but WITHOUT ANY WARRANTY; without even the implied warranty of
28 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 GNU General Public License for more details.
30
31 You should have received a copy of the GNU General Public License
32 along with this program; if not, write to the Free Software
33 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
34 MA 02110-1301, USA. */
252b5132
RH
35
36#define TARGET_IS_${EMULATION_NAME}
37
252b5132 38#include "sysdep.h"
3db64b00 39#include "bfd.h"
1c9acd94 40#include "libiberty.h"
8056826a 41#include "safe-ctype.h"
42627821 42#include "filenames.h"
fcf65871 43#include "getopt.h"
24382dca 44#include <fcntl.h>
252b5132
RH
45
46#include "bfdlink.h"
47
48#include "ld.h"
49#include "ldmain.h"
252b5132
RH
50#include "ldmisc.h"
51#include "ldexp.h"
52#include "ldlang.h"
b71e2778
AM
53#include "ldfile.h"
54#include "ldemul.h"
61e2488c 55#include "ldbuildid.h"
df2a7313 56#include <ldgram.h>
e0ee487b 57#include "elf/common.h"
ecca9871 58#include "elf-bfd.h"
07f1e47a 59#include "filenames.h"
252b5132 60
0c7a8e5a
AM
61/* Declare functions used by various EXTRA_EM_FILEs. */
62static void gld${EMULATION_NAME}_before_parse (void);
63static void gld${EMULATION_NAME}_after_open (void);
64static void gld${EMULATION_NAME}_before_allocation (void);
eaeb0a9d 65static void gld${EMULATION_NAME}_after_allocation (void);
c2edb4b8 66static lang_output_section_statement_type *gld${EMULATION_NAME}_place_orphan
8a99a385 67 (asection *, const char *, int);
41392f03
AM
68EOF
69
d3989512
JJ
70if [ "x${USE_LIBPATH}" = xyes ] ; then
71 case ${target} in
a5244b7e 72 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 73 fragment <<EOF
0b48acfe 74#ifdef HAVE_GLOB
d3989512 75#include <glob.h>
0b48acfe 76#endif
d3989512
JJ
77EOF
78 ;;
79 esac
80fi
81
41392f03
AM
82# Import any needed special functions and/or overrides.
83#
92b93329 84source_em ${srcdir}/emultempl/elf-generic.em
41392f03 85if test -n "$EXTRA_EM_FILE" ; then
92b93329 86 source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
41392f03
AM
87fi
88
f813923c 89# Functions in this file can be overridden by setting the LDEMUL_* shell
41392f03
AM
90# variables. If the name of the overriding function is the same as is
91# defined in this file, then don't output this file's version.
92# If a different overriding name is given then output the standard function
93# as presumably it is called from the overriding function.
94#
95if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
92b93329 96fragment <<EOF
41392f03 97
252b5132 98static void
0c7a8e5a 99gld${EMULATION_NAME}_before_parse (void)
252b5132 100{
5e2f1575 101 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
66be1055 102 input_flags.dynamic = ${DYNAMIC_LINK-TRUE};
b34976b6 103 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
4724d37e 104 config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
663fa543
L
105}
106
822b8bf4 107EOF
663fa543 108fi
822b8bf4 109
4a43e768 110if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then
92b93329 111fragment <<EOF
ddbb8a31 112/* Handle the generation of DT_NEEDED tags. */
4a43e768
AM
113
114static bfd_boolean
115gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
116{
96d56e9f 117 int link_class = 0;
4a43e768
AM
118
119 /* Tell the ELF linker that we don't want the output file to have a
120 DT_NEEDED entry for this file, unless it is used to resolve
121 references in a regular object. */
66be1055 122 if (entry->flags.add_DT_NEEDED_for_regular)
96d56e9f 123 link_class = DYN_AS_NEEDED;
e56f61be
L
124
125 /* Tell the ELF linker that we don't want the output file to have a
126 DT_NEEDED entry for any dynamic library in DT_NEEDED tags from
127 this file at all. */
66be1055 128 if (!entry->flags.add_DT_NEEDED_for_dynamic)
96d56e9f 129 link_class |= DYN_NO_ADD_NEEDED;
e56f61be 130
66be1055 131 if (entry->flags.just_syms
12b9ff6c
L
132 && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0)
133 einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"),
134 entry->the_bfd);
135
ddbb8a31 136 if (link_class == 0
e56f61be
L
137 || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0)
138 return FALSE;
139
1e9cc1c2 140 bfd_elf_set_dyn_lib_class (entry->the_bfd,
4724d37e 141 (enum dynamic_lib_link_class) link_class);
4a43e768
AM
142
143 /* Continue on with normal load_symbols processing. */
144 return FALSE;
145}
146EOF
147fi
148
92b93329 149fragment <<EOF
252b5132
RH
150
151/* These variables are required to pass information back and forth
152 between after_open and check_needed and stat_needed and vercheck. */
153
154static struct bfd_link_needed_list *global_needed;
155static struct stat global_stat;
e13629bc 156static lang_input_statement_type *global_found;
252b5132 157static struct bfd_link_needed_list *global_vercheck_needed;
b34976b6 158static bfd_boolean global_vercheck_failed;
252b5132 159
7ee314fa
AM
160/* These variables are used to implement target options */
161
162static char *audit; /* colon (typically) separated list of libs */
163static char *depaudit; /* colon (typically) separated list of libs */
252b5132 164
30e8ee25
AM
165/* Style of .note.gnu.build-id section. */
166static const char *emit_note_gnu_build_id;
167
04925e1e
AM
168/* On Linux, it's possible to have different versions of the same
169 shared library linked against different versions of libc. The
170 dynamic linker somehow tags which libc version to use in
171 /etc/ld.so.cache, and, based on the libc that it sees in the
172 executable, chooses which version of the shared library to use.
252b5132 173
04925e1e
AM
174 We try to do a similar check here by checking whether this shared
175 library needs any other shared libraries which may conflict with
176 libraries we have already included in the link. If it does, we
177 skip it, and try to find another shared library farther on down the
178 link path.
252b5132 179
04925e1e
AM
180 This is called via lang_for_each_input_file.
181 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
f813923c 182 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
04925e1e 183 a conflicting version. */
252b5132 184
04925e1e 185static void
0c7a8e5a 186gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
04925e1e 187{
1c9acd94 188 const char *soname;
04925e1e 189 struct bfd_link_needed_list *l;
252b5132 190
04925e1e
AM
191 if (global_vercheck_failed)
192 return;
193 if (s->the_bfd == NULL
194 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
195 return;
252b5132 196
04925e1e
AM
197 soname = bfd_elf_get_dt_soname (s->the_bfd);
198 if (soname == NULL)
fed2999d 199 soname = lbasename (bfd_get_filename (s->the_bfd));
04925e1e
AM
200
201 for (l = global_vercheck_needed; l != NULL; l = l->next)
202 {
203 const char *suffix;
204
42627821 205 if (filename_cmp (soname, l->name) == 0)
04925e1e
AM
206 {
207 /* Probably can't happen, but it's an easy check. */
208 continue;
252b5132
RH
209 }
210
04925e1e 211 if (strchr (l->name, '/') != NULL)
252b5132
RH
212 continue;
213
04925e1e
AM
214 suffix = strstr (l->name, ".so.");
215 if (suffix == NULL)
216 continue;
217
218 suffix += sizeof ".so." - 1;
219
42627821 220 if (filename_ncmp (soname, l->name, suffix - l->name) == 0)
04925e1e
AM
221 {
222 /* Here we know that S is a dynamic object FOO.SO.VER1, and
0c7a8e5a
AM
223 the object we are considering needs a dynamic object
224 FOO.SO.VER2, and VER1 and VER2 are different. This
225 appears to be a version mismatch, so we tell the caller
226 to try a different version of this library. */
b34976b6 227 global_vercheck_failed = TRUE;
04925e1e
AM
228 return;
229 }
252b5132
RH
230 }
231}
232
252b5132 233
04925e1e
AM
234/* See if an input file matches a DT_NEEDED entry by running stat on
235 the file. */
236
237static void
0c7a8e5a 238gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
252b5132 239{
04925e1e
AM
240 struct stat st;
241 const char *suffix;
242 const char *soname;
252b5132 243
e13629bc 244 if (global_found != NULL)
04925e1e
AM
245 return;
246 if (s->the_bfd == NULL)
247 return;
e13629bc
AM
248
249 /* If this input file was an as-needed entry, and wasn't found to be
250 needed at the stage it was linked, then don't say we have loaded it. */
251 if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86 252 return;
04925e1e
AM
253
254 if (bfd_stat (s->the_bfd, &st) != 0)
252b5132 255 {
04925e1e
AM
256 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
257 return;
258 }
252b5132 259
9eabd475
ZW
260 /* Some operating systems, e.g. Windows, do not provide a meaningful
261 st_ino; they always set it to zero. (Windows does provide a
262 meaningful st_dev.) Do not indicate a duplicate library in that
263 case. While there is no guarantee that a system that provides
264 meaningful inode numbers will never set st_ino to zero, this is
265 merely an optimization, so we do not need to worry about false
266 negatives. */
04925e1e 267 if (st.st_dev == global_stat.st_dev
9eabd475
ZW
268 && st.st_ino == global_stat.st_ino
269 && st.st_ino != 0)
04925e1e 270 {
e13629bc 271 global_found = s;
04925e1e
AM
272 return;
273 }
252b5132 274
04925e1e
AM
275 /* We issue a warning if it looks like we are including two
276 different versions of the same shared library. For example,
277 there may be a problem if -lc picks up libc.so.6 but some other
278 shared library has a DT_NEEDED entry of libc.so.5. This is a
f813923c 279 heuristic test, and it will only work if the name looks like
04925e1e
AM
280 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
281 If we really want to issue warnings about mixing version numbers
282 of shared libraries, we need to find a better way. */
252b5132 283
04925e1e
AM
284 if (strchr (global_needed->name, '/') != NULL)
285 return;
286 suffix = strstr (global_needed->name, ".so.");
287 if (suffix == NULL)
288 return;
289 suffix += sizeof ".so." - 1;
252b5132 290
04925e1e
AM
291 soname = bfd_elf_get_dt_soname (s->the_bfd);
292 if (soname == NULL)
fed2999d 293 soname = lbasename (s->filename);
252b5132 294
42627821 295 if (filename_ncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
04925e1e 296 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
1c9acd94 297 global_needed->name, global_needed->by, soname);
252b5132
RH
298}
299
e56f61be
L
300struct dt_needed
301{
302 bfd *by;
303 const char *name;
304};
04925e1e 305
252b5132
RH
306/* This function is called for each possible name for a dynamic object
307 named by a DT_NEEDED entry. The FORCE parameter indicates whether
308 to skip the check for a conflicting version. */
309
b34976b6 310static bfd_boolean
e56f61be
L
311gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
312 int force)
252b5132
RH
313{
314 bfd *abfd;
e56f61be 315 const char *name = needed->name;
ec4eb78a 316 const char *soname;
96d56e9f 317 int link_class;
252b5132 318
f13a99db 319 abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd));
252b5132 320 if (abfd == NULL)
b34976b6 321 return FALSE;
4a114e3e
L
322
323 /* Linker needs to decompress sections. */
324 abfd->flags |= BFD_DECOMPRESS;
325
252b5132
RH
326 if (! bfd_check_format (abfd, bfd_object))
327 {
cde43e70 328 bfd_close (abfd);
b34976b6 329 return FALSE;
252b5132
RH
330 }
331 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
332 {
cde43e70 333 bfd_close (abfd);
b34976b6 334 return FALSE;
252b5132
RH
335 }
336
c4bb8067 337 /* For DT_NEEDED, they have to match. */
f13a99db 338 if (abfd->xvec != link_info.output_bfd->xvec)
c4bb8067
L
339 {
340 bfd_close (abfd);
b34976b6 341 return FALSE;
c4bb8067
L
342 }
343
252b5132
RH
344 /* Check whether this object would include any conflicting library
345 versions. If FORCE is set, then we skip this check; we use this
346 the second time around, if we couldn't find any compatible
347 instance of the shared library. */
348
349 if (! force)
350 {
91d6fa6a 351 struct bfd_link_needed_list *needs;
252b5132 352
91d6fa6a 353 if (! bfd_elf_get_bfd_needed_list (abfd, &needs))
252b5132
RH
354 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
355
91d6fa6a 356 if (needs != NULL)
252b5132 357 {
91d6fa6a 358 global_vercheck_needed = needs;
b34976b6 359 global_vercheck_failed = FALSE;
252b5132
RH
360 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
361 if (global_vercheck_failed)
362 {
cde43e70 363 bfd_close (abfd);
b34976b6 364 /* Return FALSE to force the caller to move on to try
0c7a8e5a 365 another file on the search path. */
b34976b6 366 return FALSE;
252b5132
RH
367 }
368
369 /* But wait! It gets much worse. On Linux, if a shared
0c7a8e5a
AM
370 library does not use libc at all, we are supposed to skip
371 it the first time around in case we encounter a shared
372 library later on with the same name which does use the
373 version of libc that we want. This is much too horrible
374 to use on any system other than Linux. */
252b5132
RH
375
376EOF
377case ${target} in
a5244b7e 378 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 379 fragment <<EOF
252b5132
RH
380 {
381 struct bfd_link_needed_list *l;
382
91d6fa6a 383 for (l = needs; l != NULL; l = l->next)
0112cd26 384 if (CONST_STRNEQ (l->name, "libc.so"))
252b5132
RH
385 break;
386 if (l == NULL)
387 {
cde43e70 388 bfd_close (abfd);
b34976b6 389 return FALSE;
252b5132
RH
390 }
391 }
392
393EOF
394 ;;
395esac
92b93329 396fragment <<EOF
252b5132
RH
397 }
398 }
399
400 /* We've found a dynamic object matching the DT_NEEDED entry. */
401
04925e1e
AM
402 /* We have already checked that there is no other input file of the
403 same name. We must now check again that we are not including the
404 same file twice. We need to do this because on many systems
405 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
406 reference libc.so.1. If we have already included libc.so, we
407 don't want to include libc.so.1 if they are the same file, and we
408 can only check that using stat. */
409
410 if (bfd_stat (abfd, &global_stat) != 0)
411 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
ec4eb78a
L
412
413 /* First strip off everything before the last '/'. */
fed2999d 414 soname = lbasename (abfd->filename);
ec4eb78a 415
cd6f1cf3 416 if (verbose)
ec4eb78a
L
417 info_msg (_("found %s at %s\n"), soname, name);
418
e13629bc 419 global_found = NULL;
04925e1e 420 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
e13629bc 421 if (global_found != NULL)
04925e1e 422 {
b34976b6 423 /* Return TRUE to indicate that we found the file, even though
0c7a8e5a 424 we aren't going to do anything with it. */
b34976b6 425 return TRUE;
04925e1e
AM
426 }
427
4a43e768
AM
428 /* Specify the soname to use. */
429 bfd_elf_set_dt_needed_name (abfd, soname);
04925e1e 430
4a43e768
AM
431 /* Tell the ELF linker that we don't want the output file to have a
432 DT_NEEDED entry for this file, unless it is used to resolve
433 references in a regular object. */
96d56e9f 434 link_class = DYN_DT_NEEDED;
e56f61be
L
435
436 /* Tell the ELF linker that we don't want the output file to have a
437 DT_NEEDED entry for this file at all if the entry is from a file
438 with DYN_NO_ADD_NEEDED. */
7e9f0867
AM
439 if (needed->by != NULL
440 && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
96d56e9f 441 link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
e56f61be 442
1e9cc1c2 443 bfd_elf_set_dyn_lib_class (abfd, (enum dynamic_lib_link_class) link_class);
04925e1e
AM
444
445 /* Add this file into the symbol table. */
446 if (! bfd_link_add_symbols (abfd, &link_info))
8ff4c1f3 447 einfo ("%F%B: error adding symbols: %E\n", abfd);
04925e1e 448
b34976b6 449 return TRUE;
04925e1e
AM
450}
451
452
453/* Search for a needed file in a path. */
454
b34976b6 455static bfd_boolean
e56f61be
L
456gld${EMULATION_NAME}_search_needed (const char *path,
457 struct dt_needed *n, int force)
04925e1e
AM
458{
459 const char *s;
e56f61be 460 const char *name = n->name;
04925e1e 461 size_t len;
e56f61be 462 struct dt_needed needed;
04925e1e 463
cc5ce052 464 if (name[0] == '/')
e56f61be 465 return gld${EMULATION_NAME}_try_needed (n, force);
cc5ce052 466
04925e1e 467 if (path == NULL || *path == '\0')
b34976b6 468 return FALSE;
e56f61be
L
469
470 needed.by = n->by;
471 needed.name = n->name;
472
04925e1e
AM
473 len = strlen (name);
474 while (1)
475 {
476 char *filename, *sset;
477
c76308d2 478 s = strchr (path, config.rpath_separator);
04925e1e
AM
479 if (s == NULL)
480 s = path + strlen (path);
481
07f1e47a
AM
482#if HAVE_DOS_BASED_FILE_SYSTEM
483 /* Assume a match on the second char is part of drive specifier. */
484 else if (config.rpath_separator == ':'
485 && s == path + 1
486 && ISALPHA (*path))
487 {
488 s = strchr (s + 1, config.rpath_separator);
489 if (s == NULL)
490 s = path + strlen (path);
491 }
492#endif
04925e1e
AM
493 filename = (char *) xmalloc (s - path + len + 2);
494 if (s == path)
495 sset = filename;
496 else
497 {
498 memcpy (filename, path, s - path);
499 filename[s - path] = '/';
500 sset = filename + (s - path) + 1;
501 }
502 strcpy (sset, name);
503
e56f61be
L
504 needed.name = filename;
505 if (gld${EMULATION_NAME}_try_needed (&needed, force))
b34976b6 506 return TRUE;
04925e1e
AM
507
508 free (filename);
509
510 if (*s == '\0')
511 break;
512 path = s + 1;
513 }
514
b34976b6 515 return FALSE;
04925e1e
AM
516}
517
518EOF
9c8ebd6a 519if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 520 fragment <<EOF
9c8ebd6a 521
c76308d2
RS
522/* Add the sysroot to every entry in a path separated by
523 config.rpath_separator. */
9c8ebd6a
DJ
524
525static char *
0c7a8e5a 526gld${EMULATION_NAME}_add_sysroot (const char *path)
9c8ebd6a
DJ
527{
528 int len, colons, i;
529 char *ret, *p;
530
531 len = strlen (path);
532 colons = 0;
533 i = 0;
534 while (path[i])
c76308d2 535 if (path[i++] == config.rpath_separator)
9c8ebd6a
DJ
536 colons++;
537
538 if (path[i])
539 colons++;
540
42644a89 541 len = len + (colons + 1) * strlen (ld_sysroot);
9c8ebd6a
DJ
542 ret = xmalloc (len + 1);
543 strcpy (ret, ld_sysroot);
544 p = ret + strlen (ret);
545 i = 0;
546 while (path[i])
c76308d2 547 if (path[i] == config.rpath_separator)
9c8ebd6a 548 {
0c7a8e5a 549 *p++ = path[i++];
9c8ebd6a
DJ
550 strcpy (p, ld_sysroot);
551 p = p + strlen (p);
9c8ebd6a
DJ
552 }
553 else
554 *p++ = path[i++];
555
556 *p = 0;
557 return ret;
558}
04925e1e 559
3dc16cab
DJ
560EOF
561 case ${target} in
ebe1fac1 562 *-*-freebsd* | *-*-dragonfly*)
92b93329 563 fragment <<EOF
ebe1fac1
NC
564/* Read the system search path the FreeBSD way rather than the Linux way. */
565#ifdef HAVE_ELF_HINTS_H
566#include <elf-hints.h>
567#else
568#include "elf-hints-local.h"
569#endif
570
571static bfd_boolean
d5c8b1f8
AM
572gld${EMULATION_NAME}_check_ld_elf_hints (const struct bfd_link_needed_list *l,
573 int force)
ebe1fac1
NC
574{
575 static bfd_boolean initialized;
576 static char *ld_elf_hints;
577 struct dt_needed needed;
578
579 if (!initialized)
580 {
581 FILE *f;
582 char *tmppath;
583
ff7a0acf 584 tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL);
ebe1fac1
NC
585 f = fopen (tmppath, FOPEN_RB);
586 free (tmppath);
587 if (f != NULL)
588 {
589 struct elfhints_hdr hdr;
590
591 if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr)
592 && hdr.magic == ELFHINTS_MAGIC
593 && hdr.version == 1)
594 {
595 if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1)
596 {
597 char *b;
598
599 b = xmalloc (hdr.dirlistlen + 1);
600 if (fread (b, 1, hdr.dirlistlen + 1, f) ==
601 hdr.dirlistlen + 1)
602 ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b);
e13629bc 603
ebe1fac1
NC
604 free (b);
605 }
606 }
607 fclose (f);
608 }
609
610 initialized = TRUE;
611 }
612
613 if (ld_elf_hints == NULL)
614 return FALSE;
615
d5c8b1f8
AM
616 needed.by = l->by;
617 needed.name = l->name;
618 return gld${EMULATION_NAME}_search_needed (ld_elf_hints, &needed, force);
ebe1fac1
NC
619}
620EOF
621 # FreeBSD
622 ;;
623
a5244b7e 624 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 625 fragment <<EOF
04925e1e
AM
626/* For a native linker, check the file /etc/ld.so.conf for directories
627 in which we may find shared libraries. /etc/ld.so.conf is really
482e8b32 628 only meaningful on Linux. */
04925e1e 629
d3989512 630struct gld${EMULATION_NAME}_ld_so_conf
04925e1e 631{
d3989512
JJ
632 char *path;
633 size_t len, alloc;
634};
04925e1e 635
dfcffada 636static bfd_boolean
d3989512
JJ
637gld${EMULATION_NAME}_parse_ld_so_conf
638 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
639
640static void
641gld${EMULATION_NAME}_parse_ld_so_conf_include
642 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
643 const char *pattern)
644{
645 char *newp = NULL;
0b48acfe 646#ifdef HAVE_GLOB
d3989512 647 glob_t gl;
0b48acfe 648#endif
d3989512
JJ
649
650 if (pattern[0] != '/')
04925e1e 651 {
d3989512
JJ
652 char *p = strrchr (filename, '/');
653 size_t patlen = strlen (pattern) + 1;
04925e1e 654
d3989512
JJ
655 newp = xmalloc (p - filename + 1 + patlen);
656 memcpy (newp, filename, p - filename + 1);
657 memcpy (newp + (p - filename + 1), pattern, patlen);
658 pattern = newp;
659 }
04925e1e 660
0b48acfe 661#ifdef HAVE_GLOB
d3989512
JJ
662 if (glob (pattern, 0, NULL, &gl) == 0)
663 {
664 size_t i;
665
666 for (i = 0; i < gl.gl_pathc; ++i)
667 gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
668 globfree (&gl);
669 }
0b48acfe
MM
670#else
671 /* If we do not have glob, treat the pattern as a literal filename. */
672 gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
673#endif
d3989512
JJ
674
675 if (newp)
676 free (newp);
677}
678
dfcffada 679static bfd_boolean
d3989512
JJ
680gld${EMULATION_NAME}_parse_ld_so_conf
681 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
682{
683 FILE *f = fopen (filename, FOPEN_RT);
563f4125
JJ
684 char *line;
685 size_t linelen;
d3989512
JJ
686
687 if (f == NULL)
dfcffada 688 return FALSE;
d3989512 689
563f4125
JJ
690 linelen = 256;
691 line = xmalloc (linelen);
692 do
d3989512 693 {
563f4125
JJ
694 char *p = line, *q;
695
696 /* Normally this would use getline(3), but we need to be portable. */
697 while ((q = fgets (p, linelen - (p - line), f)) != NULL
698 && strlen (q) == linelen - (p - line) - 1
699 && line[linelen - 2] != '\n')
700 {
701 line = xrealloc (line, 2 * linelen);
702 p = line + linelen - 1;
703 linelen += linelen;
704 }
705
706 if (q == NULL && p == line)
707 break;
d3989512
JJ
708
709 p = strchr (line, '\n');
710 if (p)
711 *p = '\0';
712
713 /* Because the file format does not know any form of quoting we
714 can search forward for the next '#' character and if found
715 make it terminating the line. */
716 p = strchr (line, '#');
717 if (p)
718 *p = '\0';
719
720 /* Remove leading whitespace. NUL is no whitespace character. */
721 p = line;
722 while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
723 ++p;
724
725 /* If the line is blank it is ignored. */
726 if (p[0] == '\0')
727 continue;
04925e1e 728
0112cd26 729 if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t'))
d3989512
JJ
730 {
731 char *dir, c;
732 p += 8;
733 do
04925e1e 734 {
d3989512
JJ
735 while (*p == ' ' || *p == '\t')
736 ++p;
04925e1e 737
d3989512
JJ
738 if (*p == '\0')
739 break;
252b5132 740
d3989512
JJ
741 dir = p;
742
743 while (*p != ' ' && *p != '\t' && *p)
744 ++p;
745
746 c = *p;
747 *p++ = '\0';
748 if (dir[0] != '\0')
749 gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
750 dir);
751 }
752 while (c != '\0');
753 }
754 else
755 {
756 char *dir = p;
757 while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
758 && *p != '\r' && *p != '\v')
759 ++p;
760
761 while (p != dir && p[-1] == '/')
762 --p;
763 if (info->path == NULL)
764 {
765 info->alloc = p - dir + 1 + 256;
766 info->path = xmalloc (info->alloc);
767 info->len = 0;
768 }
04925e1e
AM
769 else
770 {
d3989512
JJ
771 if (info->len + 1 + (p - dir) >= info->alloc)
772 {
773 info->alloc += p - dir + 256;
774 info->path = xrealloc (info->path, info->alloc);
775 }
c76308d2 776 info->path[info->len++] = config.rpath_separator;
04925e1e 777 }
d3989512
JJ
778 memcpy (info->path + info->len, dir, p - dir);
779 info->len += p - dir;
780 info->path[info->len] = '\0';
781 }
782 }
563f4125 783 while (! feof (f));
d3989512
JJ
784 free (line);
785 fclose (f);
dfcffada 786 return TRUE;
d3989512 787}
252b5132 788
d3989512 789static bfd_boolean
d5c8b1f8
AM
790gld${EMULATION_NAME}_check_ld_so_conf (const struct bfd_link_needed_list *l,
791 int force)
d3989512
JJ
792{
793 static bfd_boolean initialized;
794 static char *ld_so_conf;
795 struct dt_needed needed;
252b5132 796
d3989512
JJ
797 if (! initialized)
798 {
799 char *tmppath;
800 struct gld${EMULATION_NAME}_ld_so_conf info;
9c8ebd6a 801
d3989512
JJ
802 info.path = NULL;
803 info.len = info.alloc = 0;
ff7a0acf
AM
804 tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf",
805 (const char *) NULL);
dfcffada
AM
806 if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath))
807 {
808 free (tmppath);
ff7a0acf
AM
809 tmppath = concat (ld_sysroot, "/etc/ld.so.conf",
810 (const char *) NULL);
dfcffada
AM
811 gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
812 }
d3989512 813 free (tmppath);
dfcffada 814
d3989512
JJ
815 if (info.path)
816 {
817 char *d = gld${EMULATION_NAME}_add_sysroot (info.path);
818 free (info.path);
819 ld_so_conf = d;
04925e1e 820 }
b34976b6 821 initialized = TRUE;
04925e1e 822 }
49e56c49 823
04925e1e 824 if (ld_so_conf == NULL)
b34976b6 825 return FALSE;
252b5132 826
e56f61be 827
d5c8b1f8
AM
828 needed.by = l->by;
829 needed.name = l->name;
e56f61be 830 return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
252b5132
RH
831}
832
04925e1e 833EOF
9c8ebd6a
DJ
834 # Linux
835 ;;
04925e1e
AM
836 esac
837fi
92b93329 838fragment <<EOF
04925e1e 839
252b5132
RH
840/* See if an input file matches a DT_NEEDED entry by name. */
841
842static void
0c7a8e5a 843gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
252b5132 844{
e13629bc
AM
845 const char *soname;
846
847 /* Stop looking if we've found a loaded lib. */
848 if (global_found != NULL
849 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
850 & DYN_AS_NEEDED) == 0)
252b5132
RH
851 return;
852
e13629bc
AM
853 if (s->filename == NULL || s->the_bfd == NULL)
854 return;
855
856 /* Don't look for a second non-loaded as-needed lib. */
857 if (global_found != NULL
858 && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86
AM
859 return;
860
42627821 861 if (filename_cmp (s->filename, global_needed->name) == 0)
252b5132 862 {
e13629bc
AM
863 global_found = s;
864 return;
865 }
577a0623 866
66be1055 867 if (s->flags.search_dirs)
e13629bc
AM
868 {
869 const char *f = strrchr (s->filename, '/');
870 if (f != NULL
42627821 871 && filename_cmp (f + 1, global_needed->name) == 0)
577a0623 872 {
e13629bc 873 global_found = s;
577a0623
AM
874 return;
875 }
252b5132
RH
876 }
877
e13629bc
AM
878 soname = bfd_elf_get_dt_soname (s->the_bfd);
879 if (soname != NULL
42627821 880 && filename_cmp (soname, global_needed->name) == 0)
252b5132 881 {
e13629bc
AM
882 global_found = s;
883 return;
252b5132 884 }
252b5132
RH
885}
886
41392f03
AM
887EOF
888
889if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
92b93329 890fragment <<EOF
04925e1e 891
24382dca 892static bfd_size_type
677e5a92 893id_note_section_size (bfd *abfd ATTRIBUTE_UNUSED)
24382dca 894{
30e8ee25 895 const char *style = emit_note_gnu_build_id;
24382dca 896 bfd_size_type size;
61e2488c 897 bfd_size_type build_id_size;
24382dca 898
24382dca
RM
899 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
900 size = (size + 3) & -(bfd_size_type) 4;
901
61e2488c
JT
902 build_id_size = compute_build_id_size (style);
903 if (build_id_size)
904 size += build_id_size;
24382dca
RM
905 else
906 size = 0;
907
908 return size;
909}
910
24382dca 911static bfd_boolean
30e8ee25 912write_build_id (bfd *abfd)
24382dca
RM
913{
914 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
30e8ee25
AM
915 struct elf_obj_tdata *t = elf_tdata (abfd);
916 const char *style;
24382dca
RM
917 asection *asec;
918 Elf_Internal_Shdr *i_shdr;
919 unsigned char *contents, *id_bits;
920 bfd_size_type size;
30e8ee25 921 file_ptr position;
24382dca
RM
922 Elf_External_Note *e_note;
923
c0355132
AM
924 style = t->o->build_id.style;
925 asec = t->o->build_id.sec;
83e4970b 926 if (bfd_is_abs_section (asec->output_section))
24382dca 927 {
83e4970b
AM
928 einfo (_("%P: warning: .note.gnu.build-id section discarded,"
929 " --build-id ignored.\n"));
930 return TRUE;
24382dca
RM
931 }
932 i_shdr = &elf_section_data (asec->output_section)->this_hdr;
933
934 if (i_shdr->contents == NULL)
935 {
b2ff8454 936 if (asec->contents == NULL)
1e9cc1c2 937 asec->contents = (unsigned char *) xmalloc (asec->size);
b2ff8454 938 contents = asec->contents;
24382dca 939 }
b2ff8454
RM
940 else
941 contents = i_shdr->contents + asec->output_offset;
24382dca 942
1e9cc1c2 943 e_note = (Elf_External_Note *) contents;
24382dca
RM
944 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
945 size = (size + 3) & -(bfd_size_type) 4;
946 id_bits = contents + size;
947 size = asec->size - size;
948
949 bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz);
950 bfd_h_put_32 (abfd, size, &e_note->descsz);
951 bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type);
952 memcpy (e_note->name, "GNU", sizeof "GNU");
953
61e2488c 954 generate_build_id (abfd, style, bed->s->checksum_contents, id_bits, size);
24382dca 955
30e8ee25 956 position = i_shdr->sh_offset + asec->output_offset;
b2ff8454 957 size = asec->size;
30e8ee25 958 return (bfd_seek (abfd, position, SEEK_SET) == 0
b2ff8454 959 && bfd_bwrite (contents, size, abfd) == size);
24382dca
RM
960}
961
30e8ee25
AM
962/* Make .note.gnu.build-id section, and set up elf_tdata->build_id. */
963
964static bfd_boolean
965setup_build_id (bfd *ibfd)
966{
967 asection *s;
968 bfd_size_type size;
969 flagword flags;
970
971 size = id_note_section_size (ibfd);
972 if (size == 0)
973 {
974 einfo ("%P: warning: unrecognized --build-id style ignored.\n");
975 return FALSE;
976 }
977
978 flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
979 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
980 s = bfd_make_section_with_flags (ibfd, ".note.gnu.build-id", flags);
981 if (s != NULL && bfd_set_section_alignment (ibfd, s, 2))
982 {
983 struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
c0355132
AM
984 t->o->build_id.after_write_object_contents = &write_build_id;
985 t->o->build_id.style = emit_note_gnu_build_id;
986 t->o->build_id.sec = s;
987 elf_section_type (s) = SHT_NOTE;
988 s->size = size;
989 return TRUE;
30e8ee25
AM
990 }
991
992 einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
993 " --build-id ignored.\n");
994 return FALSE;
995}
24382dca 996
04925e1e 997/* This is called after all the input files have been opened. */
252b5132
RH
998
999static void
0c7a8e5a 1000gld${EMULATION_NAME}_after_open (void)
252b5132 1001{
04925e1e 1002 struct bfd_link_needed_list *needed, *l;
d10e7fcc
AM
1003 struct elf_link_hash_table *htab;
1004
5c3049d2
AM
1005 after_open_default ();
1006
d10e7fcc
AM
1007 htab = elf_hash_table (&link_info);
1008 if (!is_elf_hash_table (htab))
1009 return;
252b5132 1010
30e8ee25 1011 if (emit_note_gnu_build_id != NULL)
c0065db7
RM
1012 {
1013 bfd *abfd;
c0065db7 1014
a654efd6
L
1015 /* Find an ELF input. */
1016 for (abfd = link_info.input_bfds;
c72f2fb2 1017 abfd != (bfd *) NULL; abfd = abfd->link.next)
ca0694ad
AM
1018 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
1019 && bfd_count_sections (abfd) != 0)
a654efd6 1020 break;
c0065db7 1021
30e8ee25
AM
1022 /* PR 10555: If there are no ELF input files do not try to
1023 create a .note.gnu-build-id section. */
1024 if (abfd == NULL
1025 || !setup_build_id (abfd))
c0065db7 1026 {
30e8ee25
AM
1027 free ((char *) emit_note_gnu_build_id);
1028 emit_note_gnu_build_id = NULL;
c0065db7
RM
1029 }
1030 }
1031
0e1862bb 1032 if (bfd_link_relocatable (&link_info))
76f0cad6
NC
1033 {
1034 if (link_info.execstack == ! link_info.noexecstack)
1035 /* PR ld/16744: If "-z [no]execstack" has been specified on the
1036 command line and we are perfoming a relocatable link then no
1037 PT_GNU_STACK segment will be created and so the
1038 linkinfo.[no]execstack values set in _handle_option() will have no
1039 effect. Instead we create a .note.GNU-stack section in much the
1040 same way as the assembler does with its --[no]execstack option. */
1041 (void) bfd_make_section_with_flags (link_info.input_bfds,
1042 ".note.GNU-stack",
1043 SEC_READONLY | (link_info.execstack ? SEC_CODE : 0));
1044
1045 return;
1046 }
d10e7fcc 1047
2f0c68f2 1048 if (!link_info.traditional_format)
eb3d5f3b 1049 {
a654efd6
L
1050 bfd *abfd, *elfbfd = NULL;
1051 bfd_boolean warn_eh_frame = FALSE;
d10e7fcc 1052 asection *s;
2f0c68f2 1053 int seen_type = 0;
eb3d5f3b 1054
c72f2fb2 1055 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next)
eb3d5f3b 1056 {
2f0c68f2
CM
1057 int type = 0;
1058 for (s = abfd->sections; s && type < COMPACT_EH_HDR; s = s->next)
4440bb77 1059 {
2f0c68f2
CM
1060 const char *name = bfd_get_section_name (abfd, s);
1061
1062 if (bfd_is_abs_section (s->output_section))
1063 continue;
1064 if (CONST_STRNEQ (name, ".eh_frame_entry"))
1065 type = COMPACT_EH_HDR;
1066 else if (strcmp (name, ".eh_frame") == 0 && s->size > 8)
1067 type = DWARF2_EH_HDR;
4440bb77 1068 }
2f0c68f2
CM
1069
1070 if (type != 0)
1071 {
1072 if (seen_type == 0)
1073 {
1074 seen_type = type;
1075 }
1076 else if (seen_type != type)
1077 {
1078 einfo (_("%P%F: compact frame descriptions incompatible with"
1079 " DWARF2 .eh_frame from %B\n"),
1080 type == DWARF2_EH_HDR ? abfd : elfbfd);
1081 break;
1082 }
1083
1084 if (!elfbfd
1085 && (type == COMPACT_EH_HDR || link_info.eh_frame_hdr_type != 0))
1086 {
1087 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1088 elfbfd = abfd;
1089
1090 warn_eh_frame = TRUE;
1091 }
1092 }
1093
1094 if (seen_type == COMPACT_EH_HDR)
1095 link_info.eh_frame_hdr_type = COMPACT_EH_HDR;
1096
1097 if (bfd_count_sections (abfd) == 0)
1098 continue;
d10e7fcc 1099 }
a654efd6 1100 if (elfbfd)
d10e7fcc
AM
1101 {
1102 const struct elf_backend_data *bed;
1103
a654efd6
L
1104 bed = get_elf_backend_data (elfbfd);
1105 s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr",
1106 bed->dynamic_sec_flags
1107 | SEC_READONLY);
d10e7fcc 1108 if (s != NULL
a654efd6
L
1109 && bfd_set_section_alignment (elfbfd, s, 2))
1110 {
1111 htab->eh_info.hdr_sec = s;
1112 warn_eh_frame = FALSE;
1113 }
eb3d5f3b 1114 }
a654efd6
L
1115 if (warn_eh_frame)
1116 einfo ("%P: warning: Cannot create .eh_frame_hdr section,"
1117 " --eh-frame-hdr ignored.\n");
eb3d5f3b
JB
1118 }
1119
04925e1e
AM
1120 /* Get the list of files which appear in DT_NEEDED entries in
1121 dynamic objects included in the link (often there will be none).
1122 For each such file, we want to track down the corresponding
1123 library, and include the symbol table in the link. This is what
1124 the runtime dynamic linker will do. Tracking the files down here
1125 permits one dynamic object to include another without requiring
1126 special action by the person doing the link. Note that the
1127 needed list can actually grow while we are stepping through this
1128 loop. */
f13a99db 1129 needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info);
04925e1e 1130 for (l = needed; l != NULL; l = l->next)
252b5132 1131 {
04925e1e 1132 struct bfd_link_needed_list *ll;
e56f61be 1133 struct dt_needed n, nn;
04925e1e 1134 int force;
252b5132 1135
7e9f0867 1136 /* If the lib that needs this one was --as-needed and wasn't
4706eab9 1137 found to be needed, then this lib isn't needed either. */
7e9f0867 1138 if (l->by != NULL
4706eab9
AM
1139 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0)
1140 continue;
1141
1142 /* Skip the lib if --no-copy-dt-needed-entries and
1143 --allow-shlib-undefined is in effect. */
1144 if (l->by != NULL
1145 && link_info.unresolved_syms_in_shared_libs == RM_IGNORE
1146 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_NO_ADD_NEEDED) != 0)
7e9f0867
AM
1147 continue;
1148
04925e1e
AM
1149 /* If we've already seen this file, skip it. */
1150 for (ll = needed; ll != l; ll = ll->next)
7e9f0867
AM
1151 if ((ll->by == NULL
1152 || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
1153 && strcmp (ll->name, l->name) == 0)
04925e1e
AM
1154 break;
1155 if (ll != l)
1156 continue;
252b5132 1157
04925e1e
AM
1158 /* See if this file was included in the link explicitly. */
1159 global_needed = l;
e13629bc 1160 global_found = NULL;
04925e1e 1161 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
e13629bc
AM
1162 if (global_found != NULL
1163 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
1164 & DYN_AS_NEEDED) == 0)
04925e1e 1165 continue;
252b5132 1166
e56f61be
L
1167 n.by = l->by;
1168 n.name = l->name;
1169 nn.by = l->by;
cd6f1cf3 1170 if (verbose)
ec4eb78a
L
1171 info_msg (_("%s needed by %B\n"), l->name, l->by);
1172
e13629bc
AM
1173 /* As-needed libs specified on the command line (or linker script)
1174 take priority over libs found in search dirs. */
1175 if (global_found != NULL)
1176 {
1177 nn.name = global_found->filename;
1178 if (gld${EMULATION_NAME}_try_needed (&nn, TRUE))
1179 continue;
1180 }
1181
04925e1e
AM
1182 /* We need to find this file and include the symbol table. We
1183 want to search for the file in the same way that the dynamic
1184 linker will search. That means that we want to use
1185 rpath_link, rpath, then the environment variable
ec4eb78a
L
1186 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
1187 entries (native only), then the linker script LIB_SEARCH_DIRS.
1188 We do not search using the -L arguments.
252b5132 1189
04925e1e
AM
1190 We search twice. The first time, we skip objects which may
1191 introduce version mismatches. The second time, we force
1192 their use. See gld${EMULATION_NAME}_vercheck comment. */
1193 for (force = 0; force < 2; force++)
1194 {
04925e1e
AM
1195 size_t len;
1196 search_dirs_type *search;
6dd8c765 1197EOF
ff925e69 1198if [ "x${NATIVE}" = xyes ] ; then
92b93329 1199fragment <<EOF
dcb0bd0e 1200 const char *lib_path;
ff925e69
KK
1201EOF
1202fi
1203if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1204fragment <<EOF
6dd8c765
L
1205 struct bfd_link_needed_list *rp;
1206 int found;
1207EOF
6dd8c765 1208fi
92b93329 1209fragment <<EOF
252b5132 1210
04925e1e 1211 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
e56f61be 1212 &n, force))
04925e1e 1213 break;
dcb0bd0e 1214EOF
9c8ebd6a 1215if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1216fragment <<EOF
04925e1e 1217 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
e56f61be 1218 &n, force))
04925e1e 1219 break;
9c8ebd6a
DJ
1220EOF
1221fi
1222if [ "x${NATIVE}" = xyes ] ; then
92b93329 1223fragment <<EOF
04925e1e
AM
1224 if (command_line.rpath_link == NULL
1225 && command_line.rpath == NULL)
1226 {
1227 lib_path = (const char *) getenv ("LD_RUN_PATH");
e56f61be 1228 if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
04925e1e
AM
1229 force))
1230 break;
1231 }
04925e1e 1232 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
e56f61be 1233 if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force))
04925e1e 1234 break;
9c8ebd6a
DJ
1235EOF
1236fi
1237if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1238fragment <<EOF
ec4eb78a 1239 found = 0;
f13a99db 1240 rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info);
6dd8c765 1241 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a 1242 {
9c8ebd6a 1243 char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name);
ec4eb78a 1244 found = (rp->by == l->by
9c8ebd6a 1245 && gld${EMULATION_NAME}_search_needed (tmpname,
e56f61be 1246 &n,
ec4eb78a 1247 force));
9c8ebd6a 1248 free (tmpname);
ec4eb78a
L
1249 }
1250 if (found)
1251 break;
1252
04925e1e 1253EOF
04925e1e 1254fi
c1446dba
L
1255if [ "x${USE_LIBPATH}" = xyes ] ; then
1256 case ${target} in
ebe1fac1 1257 *-*-freebsd* | *-*-dragonfly*)
92b93329 1258 fragment <<EOF
d5c8b1f8 1259 if (gld${EMULATION_NAME}_check_ld_elf_hints (l, force))
ebe1fac1
NC
1260 break;
1261EOF
1262 # FreeBSD
1263 ;;
1264
a5244b7e 1265 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 1266 fragment <<EOF
d5c8b1f8 1267 if (gld${EMULATION_NAME}_check_ld_so_conf (l, force))
c1446dba
L
1268 break;
1269
1270EOF
eeaa4577 1271 # Linux
c1446dba
L
1272 ;;
1273 esac
1274fi
92b93329 1275fragment <<EOF
04925e1e
AM
1276 len = strlen (l->name);
1277 for (search = search_head; search != NULL; search = search->next)
1278 {
1279 char *filename;
252b5132 1280
04925e1e
AM
1281 if (search->cmdline)
1282 continue;
1283 filename = (char *) xmalloc (strlen (search->name) + len + 2);
1284 sprintf (filename, "%s/%s", search->name, l->name);
e56f61be
L
1285 nn.name = filename;
1286 if (gld${EMULATION_NAME}_try_needed (&nn, force))
04925e1e
AM
1287 break;
1288 free (filename);
1289 }
1290 if (search != NULL)
1291 break;
1292EOF
92b93329 1293fragment <<EOF
04925e1e 1294 }
252b5132 1295
04925e1e
AM
1296 if (force < 2)
1297 continue;
252b5132 1298
e374f1d9 1299 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
04925e1e
AM
1300 l->name, l->by);
1301 }
2f0c68f2
CM
1302
1303 if (link_info.eh_frame_hdr_type == COMPACT_EH_HDR)
1304 if (bfd_elf_parse_eh_frame_entries (NULL, &link_info) == FALSE)
1305 einfo (_("%P%F: Failed to parse EH frame entries.\n"));
04925e1e 1306}
252b5132 1307
41392f03
AM
1308EOF
1309fi
1310
92b93329 1311fragment <<EOF
252b5132 1312
04925e1e 1313/* Look through an expression for an assignment statement. */
252b5132 1314
04925e1e 1315static void
0c7a8e5a 1316gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
04925e1e 1317{
4ea42fb7 1318 bfd_boolean provide = FALSE;
04925e1e
AM
1319
1320 switch (exp->type.node_class)
252b5132 1321 {
04925e1e 1322 case etree_provide:
bded3693 1323 case etree_provided:
4ea42fb7
AM
1324 provide = TRUE;
1325 /* Fall thru */
1326 case etree_assign:
04925e1e
AM
1327 /* We call record_link_assignment even if the symbol is defined.
1328 This is because if it is defined by a dynamic object, we
1329 actually want to use the value defined by the linker script,
1330 not the value from the dynamic object (because we are setting
1331 symbols like etext). If the symbol is defined by a regular
1332 object, then, as it happens, calling record_link_assignment
1333 will do no harm. */
04925e1e 1334 if (strcmp (exp->assign.dst, ".") != 0)
252b5132 1335 {
f13a99db
AM
1336 if (!bfd_elf_record_link_assignment (link_info.output_bfd,
1337 &link_info,
fe21a8fc
L
1338 exp->assign.dst, provide,
1339 exp->assign.hidden))
04925e1e
AM
1340 einfo ("%P%F: failed to record assignment to %s: %E\n",
1341 exp->assign.dst);
252b5132 1342 }
04925e1e
AM
1343 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
1344 break;
252b5132 1345
04925e1e
AM
1346 case etree_binary:
1347 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
1348 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
1349 break;
252b5132 1350
04925e1e
AM
1351 case etree_trinary:
1352 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
1353 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
1354 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
1355 break;
252b5132 1356
04925e1e
AM
1357 case etree_unary:
1358 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1359 break;
252b5132 1360
04925e1e
AM
1361 default:
1362 break;
252b5132
RH
1363 }
1364}
1365
04925e1e
AM
1366
1367/* This is called by the before_allocation routine via
1368 lang_for_each_statement. It locates any assignment statements, and
1369 tells the ELF backend about them, in case they are assignments to
1370 symbols which are referred to by dynamic objects. */
1371
1372static void
0c7a8e5a 1373gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
04925e1e
AM
1374{
1375 if (s->header.type == lang_assignment_statement_enum)
1376 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1377}
1378
41392f03
AM
1379EOF
1380
1381if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
1382 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
1383 ELF_INTERPRETER_SET_DEFAULT="
1384 if (sinterp != NULL)
1385 {
5718918d
AM
1386 sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
1387 sinterp->size = strlen ((char *) sinterp->contents) + 1;
57e6abd2
AO
1388 }
1389
1390"
1391 else
1392 ELF_INTERPRETER_SET_DEFAULT=
1393 fi
92b93329 1394fragment <<EOF
04925e1e 1395
7ee314fa 1396/* used by before_allocation and handle_option. */
4724d37e 1397static void
91d6fa6a 1398gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg)
7ee314fa
AM
1399{
1400 if (*to == NULL)
91d6fa6a 1401 *to = xstrdup (op_arg);
7ee314fa
AM
1402 else
1403 {
1404 size_t to_len = strlen (*to);
91d6fa6a 1405 size_t op_arg_len = strlen (op_arg);
7ee314fa
AM
1406 char *buf;
1407 char *cp = *to;
1408
1409 /* First see whether OPTARG is already in the path. */
1410 do
1411 {
91d6fa6a
NC
1412 if (strncmp (op_arg, cp, op_arg_len) == 0
1413 && (cp[op_arg_len] == 0
1414 || cp[op_arg_len] == config.rpath_separator))
7ee314fa
AM
1415 /* We found it. */
1416 break;
1417
1418 /* Not yet found. */
1419 cp = strchr (cp, config.rpath_separator);
1420 if (cp != NULL)
1421 ++cp;
1422 }
1423 while (cp != NULL);
1424
1425 if (cp == NULL)
1426 {
91d6fa6a 1427 buf = xmalloc (to_len + op_arg_len + 2);
7ee314fa 1428 sprintf (buf, "%s%c%s", *to,
91d6fa6a 1429 config.rpath_separator, op_arg);
7ee314fa
AM
1430 free (*to);
1431 *to = buf;
1432 }
1433 }
1434}
1435
252b5132
RH
1436/* This is called after the sections have been attached to output
1437 sections, but before any sizes or addresses have been set. */
1438
1439static void
0c7a8e5a 1440gld${EMULATION_NAME}_before_allocation (void)
252b5132
RH
1441{
1442 const char *rpath;
1443 asection *sinterp;
7ee314fa 1444 bfd *abfd;
4199e3b8 1445 struct elf_link_hash_entry *ehdr_start = NULL;
a0bde398
L
1446#if defined(__GNUC__) && GCC_VERSION < 4006
1447 /* Work around a GCC uninitialized warning bug fixed in GCC 4.6. */
1448 struct bfd_link_hash_entry ehdr_start_save = ehdr_start_save;
1449#else
4a0bc59e 1450 struct bfd_link_hash_entry ehdr_start_save;
a0bde398 1451#endif
252b5132 1452
b4d040b1 1453 if (is_elf_hash_table (link_info.hash))
a5382c42
MR
1454 {
1455 _bfd_elf_tls_setup (link_info.output_bfd, &link_info);
e1918d23 1456
cde7cb01
MR
1457 /* Make __ehdr_start hidden if it has been referenced, to
1458 prevent the symbol from being dynamic. */
0e1862bb 1459 if (!bfd_link_relocatable (&link_info))
c2763e27
RM
1460 {
1461 struct elf_link_hash_entry *h
1462 = elf_link_hash_lookup (elf_hash_table (&link_info), "__ehdr_start",
1463 FALSE, FALSE, TRUE);
1464
1465 /* Only adjust the export class if the symbol was referenced
1466 and not defined, otherwise leave it alone. */
1467 if (h != NULL
1468 && (h->root.type == bfd_link_hash_new
1469 || h->root.type == bfd_link_hash_undefined
1470 || h->root.type == bfd_link_hash_undefweak
1471 || h->root.type == bfd_link_hash_common))
1472 {
1473 _bfd_elf_link_hash_hide_symbol (&link_info, h, TRUE);
1474 if (ELF_ST_VISIBILITY (h->other) != STV_INTERNAL)
1475 h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN;
4199e3b8
AM
1476 /* Don't leave the symbol undefined. Undefined hidden
1477 symbols typically won't have dynamic relocations, but
1478 we most likely will need dynamic relocations for
1479 __ehdr_start if we are building a PIE or shared
1480 library. */
1481 ehdr_start = h;
1482 ehdr_start_save = h->root;
1483 h->root.type = bfd_link_hash_defined;
1484 h->root.u.def.section = bfd_abs_section_ptr;
1485 h->root.u.def.value = 0;
c2763e27
RM
1486 }
1487 }
cde7cb01 1488
a5382c42
MR
1489 /* If we are going to make any variable assignments, we need to
1490 let the ELF backend know about them in case the variables are
1491 referred to by dynamic objects. */
1492 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
1493 }
252b5132
RH
1494
1495 /* Let the ELF backend work out the sizes of any sections required
1496 by dynamic linking. */
1497 rpath = command_line.rpath;
1498 if (rpath == NULL)
1499 rpath = (const char *) getenv ("LD_RUN_PATH");
7ee314fa 1500
c72f2fb2 1501 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next)
8dd881b6
L
1502 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1503 {
1504 const char *audit_libs = elf_dt_audit (abfd);
7ee314fa 1505
4724d37e 1506 /* If the input bfd contains an audit entry, we need to add it as
8dd881b6
L
1507 a dep audit entry. */
1508 if (audit_libs && *audit_libs != '\0')
1509 {
1510 char *cp = xstrdup (audit_libs);
1511 do
1512 {
1513 int more = 0;
1514 char *cp2 = strchr (cp, config.rpath_separator);
7ee314fa 1515
8dd881b6
L
1516 if (cp2)
1517 {
1518 *cp2 = '\0';
1519 more = 1;
1520 }
7ee314fa 1521
8dd881b6
L
1522 if (cp != NULL && *cp != '\0')
1523 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp);
1524
1525 cp = more ? ++cp2 : NULL;
1526 }
1527 while (cp != NULL);
1528 }
1529 }
7ee314fa 1530
5a580b3a 1531 if (! (bfd_elf_size_dynamic_sections
f13a99db 1532 (link_info.output_bfd, command_line.soname, rpath,
7ee314fa 1533 command_line.filter_shlib, audit, depaudit,
252b5132 1534 (const char * const *) command_line.auxiliary_filters,
fd91d419 1535 &link_info, &sinterp)))
252b5132 1536 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
8423293d 1537
57e6abd2 1538${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
1539 /* Let the user override the dynamic linker we are using. */
1540 if (command_line.interpreter != NULL
1541 && sinterp != NULL)
1542 {
1543 sinterp->contents = (bfd_byte *) command_line.interpreter;
eea6121a 1544 sinterp->size = strlen (command_line.interpreter) + 1;
252b5132
RH
1545 }
1546
1547 /* Look for any sections named .gnu.warning. As a GNU extensions,
1548 we treat such sections as containing warning messages. We print
1549 out the warning message, and then zero out the section size so
1550 that it does not get copied into the output file. */
1551
1552 {
1553 LANG_FOR_EACH_INPUT_STATEMENT (is)
1554 {
1555 asection *s;
1556 bfd_size_type sz;
1557 char *msg;
b34976b6 1558 bfd_boolean ret;
252b5132 1559
66be1055 1560 if (is->flags.just_syms)
252b5132
RH
1561 continue;
1562
1563 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
1564 if (s == NULL)
1565 continue;
1566
eea6121a 1567 sz = s->size;
1e9cc1c2 1568 msg = (char *) xmalloc ((size_t) (sz + 1));
bc251d50 1569 if (! bfd_get_section_contents (is->the_bfd, s, msg,
8c675694 1570 (file_ptr) 0, sz))
252b5132
RH
1571 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
1572 is->the_bfd);
bc251d50 1573 msg[sz] = '\0';
252b5132
RH
1574 ret = link_info.callbacks->warning (&link_info, msg,
1575 (const char *) NULL,
1576 is->the_bfd, (asection *) NULL,
1577 (bfd_vma) 0);
1578 ASSERT (ret);
1579 free (msg);
1580
9e3be61d
AM
1581 /* Clobber the section size, so that we don't waste space
1582 copying the warning into the output file. If we've already
1583 sized the output section, adjust its size. The adjustment
1584 is on rawsize because targets that size sections early will
1585 have called lang_reset_memory_regions after sizing. */
1586 if (s->output_section != NULL
1587 && s->output_section->rawsize >= s->size)
1588 s->output_section->rawsize -= s->size;
1589
eea6121a 1590 s->size = 0;
11d2f718 1591
9e3be61d
AM
1592 /* Also set SEC_EXCLUDE, so that local symbols defined in the
1593 warning section don't get copied to the output. */
a14a5de3 1594 s->flags |= SEC_EXCLUDE | SEC_KEEP;
252b5132
RH
1595 }
1596 }
8423293d 1597
1e035701 1598 before_allocation_default ();
8423293d 1599
f13a99db 1600 if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info))
8423293d 1601 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
4199e3b8
AM
1602
1603 if (ehdr_start != NULL)
1604 {
1605 /* If we twiddled __ehdr_start to defined earlier, put it back
1606 as it was. */
1607 ehdr_start->root.type = ehdr_start_save.type;
1608 ehdr_start->root.u = ehdr_start_save.u;
1609 }
252b5132
RH
1610}
1611
41392f03
AM
1612EOF
1613fi
1614
1615if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
92b93329 1616fragment <<EOF
252b5132 1617
04925e1e
AM
1618/* Try to open a dynamic archive. This is where we know that ELF
1619 dynamic libraries have an extension of .so (or .sl on oddball systems
1620 like hpux). */
1621
b34976b6 1622static bfd_boolean
0c7a8e5a
AM
1623gld${EMULATION_NAME}_open_dynamic_archive
1624 (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
252b5132 1625{
04925e1e
AM
1626 const char *filename;
1627 char *string;
d4ae5fb0
AM
1628 size_t len;
1629 bfd_boolean opened = FALSE;
252b5132 1630
66be1055 1631 if (! entry->flags.maybe_archive)
b34976b6 1632 return FALSE;
252b5132 1633
04925e1e 1634 filename = entry->filename;
d4ae5fb0
AM
1635 len = strlen (search->name) + strlen (filename);
1636 if (entry->flags.full_name_provided)
1637 {
1638 len += sizeof "/";
1639 string = (char *) xmalloc (len);
1640 sprintf (string, "%s/%s", search->name, filename);
1641 }
1642 else
1643 {
1644 size_t xlen = 0;
252b5132 1645
d4ae5fb0 1646 len += strlen (arch) + sizeof "/lib.so";
04925e1e 1647#ifdef EXTRA_SHLIB_EXTENSION
d4ae5fb0
AM
1648 xlen = (strlen (EXTRA_SHLIB_EXTENSION) > 3
1649 ? strlen (EXTRA_SHLIB_EXTENSION) - 3
1650 : 0);
04925e1e 1651#endif
d4ae5fb0
AM
1652 string = (char *) xmalloc (len + xlen);
1653 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
04925e1e 1654#ifdef EXTRA_SHLIB_EXTENSION
d4ae5fb0
AM
1655 /* Try the .so extension first. If that fails build a new filename
1656 using EXTRA_SHLIB_EXTENSION. */
1657 opened = ldfile_try_open_bfd (string, entry);
1658 if (!opened)
1659 strcpy (string + len - 4, EXTRA_SHLIB_EXTENSION);
04925e1e 1660#endif
d4ae5fb0 1661 }
04925e1e 1662
d4ae5fb0 1663 if (!opened && !ldfile_try_open_bfd (string, entry))
252b5132 1664 {
04925e1e 1665 free (string);
b34976b6 1666 return FALSE;
04925e1e 1667 }
252b5132 1668
04925e1e 1669 entry->filename = string;
252b5132 1670
04925e1e
AM
1671 /* We have found a dynamic object to include in the link. The ELF
1672 backend linker will create a DT_NEEDED entry in the .dynamic
1673 section naming this file. If this file includes a DT_SONAME
1674 entry, it will be used. Otherwise, the ELF linker will just use
1675 the name of the file. For an archive found by searching, like
1676 this one, the DT_NEEDED entry should consist of just the name of
1677 the file, without the path information used to find it. Note
1678 that we only need to do this if we have a dynamic object; an
1679 archive will never be referenced by a DT_NEEDED entry.
252b5132 1680
04925e1e
AM
1681 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
1682 very pretty. I haven't been able to think of anything that is
1683 pretty, though. */
1684 if (bfd_check_format (entry->the_bfd, bfd_object)
1685 && (entry->the_bfd->flags & DYNAMIC) != 0)
1686 {
66be1055 1687 ASSERT (entry->flags.maybe_archive && entry->flags.search_dirs);
252b5132 1688
04925e1e 1689 /* Rather than duplicating the logic above. Just use the
1c9acd94 1690 filename we recorded earlier. */
04925e1e 1691
d4ae5fb0
AM
1692 if (!entry->flags.full_name_provided)
1693 filename = lbasename (entry->filename);
1c9acd94 1694 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
1695 }
1696
b34976b6 1697 return TRUE;
04925e1e
AM
1698}
1699
41392f03
AM
1700EOF
1701fi
cde43e70
AM
1702
1703if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
92b93329 1704fragment <<EOF
41392f03 1705
afd7a018 1706/* A variant of lang_output_section_find used by place_orphan. */
04925e1e 1707
04925e1e 1708static lang_output_section_statement_type *
2a36a117 1709output_rel_find (asection *sec, int isdyn)
04925e1e 1710{
04925e1e 1711 lang_output_section_statement_type *lookup;
ba493122 1712 lang_output_section_statement_type *last = NULL;
2a36a117 1713 lang_output_section_statement_type *last_alloc = NULL;
48f2ff54 1714 lang_output_section_statement_type *last_ro_alloc = NULL;
ba493122
AM
1715 lang_output_section_statement_type *last_rel = NULL;
1716 lang_output_section_statement_type *last_rel_alloc = NULL;
24cdb50a 1717 int rela = sec->name[4] == 'a';
04925e1e 1718
afd7a018
AM
1719 for (lookup = &lang_output_section_statement.head->output_section_statement;
1720 lookup != NULL;
1721 lookup = lookup->next)
04925e1e 1722 {
66c103b7 1723 if (lookup->constraint >= 0
0112cd26 1724 && CONST_STRNEQ (lookup->name, ".rel"))
04925e1e 1725 {
24cdb50a 1726 int lookrela = lookup->name[4] == 'a';
ba493122 1727
2a36a117
AM
1728 /* .rel.dyn must come before all other reloc sections, to suit
1729 GNU ld.so. */
1730 if (isdyn)
1731 break;
1732
1733 /* Don't place after .rel.plt as doing so results in wrong
1734 dynamic tags. */
1735 if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
ba493122 1736 break;
2a36a117
AM
1737
1738 if (rela == lookrela || last_rel == NULL)
24cdb50a 1739 last_rel = lookup;
2a36a117
AM
1740 if ((rela == lookrela || last_rel_alloc == NULL)
1741 && lookup->bfd_section != NULL
ba493122
AM
1742 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1743 last_rel_alloc = lookup;
04925e1e 1744 }
2a36a117
AM
1745
1746 last = lookup;
1747 if (lookup->bfd_section != NULL
1748 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
48f2ff54
AM
1749 {
1750 last_alloc = lookup;
1751 if ((lookup->bfd_section->flags & SEC_READONLY) != 0)
1752 last_ro_alloc = lookup;
1753 }
252b5132 1754 }
ba493122
AM
1755
1756 if (last_rel_alloc)
1757 return last_rel_alloc;
1758
1759 if (last_rel)
1760 return last_rel;
1761
48f2ff54
AM
1762 if (last_ro_alloc)
1763 return last_ro_alloc;
1764
2a36a117
AM
1765 if (last_alloc)
1766 return last_alloc;
1767
ba493122 1768 return last;
252b5132
RH
1769}
1770
1771/* Place an orphan section. We use this to put random SHF_ALLOC
1772 sections in the right segment. */
1773
c2edb4b8 1774static lang_output_section_statement_type *
8a99a385
AM
1775gld${EMULATION_NAME}_place_orphan (asection *s,
1776 const char *secname,
1777 int constraint)
252b5132 1778{
afd7a018
AM
1779 static struct orphan_save hold[] =
1780 {
1781 { ".text",
1782 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1783 0, 0, 0, 0 },
1784 { ".rodata",
1785 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1786 0, 0, 0, 0 },
d85e71fe
L
1787 { ".tdata",
1788 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_THREAD_LOCAL,
1789 0, 0, 0, 0 },
afd7a018
AM
1790 { ".data",
1791 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1792 0, 0, 0, 0 },
1793 { ".bss",
1794 SEC_ALLOC,
1795 0, 0, 0, 0 },
1796 { 0,
1797 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1798 0, 0, 0, 0 },
1799 { ".interp",
1800 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1801 0, 0, 0, 0 },
1802 { ".sdata",
1803 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
07890c07 1804 0, 0, 0, 0 },
175b7cd4 1805 { ".comment",
07890c07
AM
1806 SEC_HAS_CONTENTS,
1807 0, 0, 0, 0 },
afd7a018
AM
1808 };
1809 enum orphan_save_index
1810 {
1811 orphan_text = 0,
1812 orphan_rodata,
d85e71fe 1813 orphan_tdata,
afd7a018
AM
1814 orphan_data,
1815 orphan_bss,
1816 orphan_rel,
1817 orphan_interp,
07890c07
AM
1818 orphan_sdata,
1819 orphan_nonalloc
afd7a018
AM
1820 };
1821 static int orphan_init_done = 0;
6a345e87 1822 struct orphan_save *place;
afd7a018 1823 lang_output_section_statement_type *after;
252b5132 1824 lang_output_section_statement_type *os;
b5f14a6d 1825 lang_output_section_statement_type *match_by_name = NULL;
24cdb50a 1826 int isdyn = 0;
ecca9871
L
1827 int iself = s->owner->xvec->flavour == bfd_target_elf_flavour;
1828 unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL;
252b5132 1829
0e1862bb 1830 if (!bfd_link_relocatable (&link_info)
24cdb50a 1831 && link_info.combreloc
ecca9871 1832 && (s->flags & SEC_ALLOC))
24cdb50a 1833 {
ecca9871
L
1834 if (iself)
1835 switch (sh_type)
1836 {
1837 case SHT_RELA:
1838 secname = ".rela.dyn";
1839 isdyn = 1;
1840 break;
1841 case SHT_REL:
1842 secname = ".rel.dyn";
1843 isdyn = 1;
1844 break;
1845 default:
1846 break;
1847 }
0112cd26 1848 else if (CONST_STRNEQ (secname, ".rel"))
ecca9871
L
1849 {
1850 secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn";
1851 isdyn = 1;
1852 }
24cdb50a 1853 }
aea4bd9d 1854
bcacc0f5 1855 /* Look through the script to see where to place this section. */
d127ecce
AM
1856 if (constraint == 0)
1857 for (os = lang_output_section_find (secname);
1858 os != NULL;
1859 os = next_matching_output_section_statement (os, 0))
1860 {
1861 /* If we don't match an existing output section, tell
1862 lang_insert_orphan to create a new output section. */
1863 constraint = SPECIAL;
1864
1865 if (os->bfd_section != NULL
1866 && (os->bfd_section->flags == 0
1867 || (_bfd_elf_match_sections_by_type (link_info.output_bfd,
1868 os->bfd_section,
1869 s->owner, s)
1870 && ((s->flags ^ os->bfd_section->flags)
1871 & (SEC_LOAD | SEC_ALLOC)) == 0)))
1872 {
1873 /* We already have an output section statement with this
1874 name, and its bfd section has compatible flags.
1875 If the section already exists but does not have any flags
1876 set, then it has been created by the linker, probably as a
1877 result of a --section-start command line switch. */
b9c361e0 1878 lang_add_section (&os->children, s, NULL, os);
d127ecce
AM
1879 return os;
1880 }
b5f14a6d
DD
1881
1882 /* Save unused output sections in case we can match them
1883 against orphans later. */
1884 if (os->bfd_section == NULL)
1885 match_by_name = os;
d127ecce 1886 }
252b5132 1887
b5f14a6d
DD
1888 /* If we didn't match an active output section, see if we matched an
1889 unused one and use that. */
1890 if (match_by_name)
1891 {
b9c361e0 1892 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
b5f14a6d
DD
1893 return match_by_name;
1894 }
1895
afd7a018
AM
1896 if (!orphan_init_done)
1897 {
1898 struct orphan_save *ho;
07890c07 1899
afd7a018
AM
1900 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1901 if (ho->name != NULL)
1902 {
1903 ho->os = lang_output_section_find (ho->name);
1904 if (ho->os != NULL && ho->os->flags == 0)
1905 ho->os->flags = ho->flags;
1906 }
1907 orphan_init_done = 1;
1908 }
252b5132
RH
1909
1910 /* If this is a final link, then always put .gnu.warning.SYMBOL
1911 sections into the .text section to get them out of the way. */
0e1862bb 1912 if (bfd_link_executable (&link_info)
bcacc0f5 1913 && CONST_STRNEQ (s->name, ".gnu.warning.")
afd7a018 1914 && hold[orphan_text].os != NULL)
252b5132 1915 {
c2edb4b8 1916 os = hold[orphan_text].os;
b9c361e0 1917 lang_add_section (&os->children, s, NULL, os);
c2edb4b8 1918 return os;
252b5132
RH
1919 }
1920
1921 /* Decide which segment the section should go in based on the
1922 section name and section flags. We put loadable .note sections
1923 right after the .interp section, so that the PT_NOTE segment is
1924 stored right after the program headers where the OS can read it
1925 in the first page. */
aea4bd9d 1926
71bfc0ae 1927 place = NULL;
07890c07
AM
1928 if ((s->flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0)
1929 place = &hold[orphan_nonalloc];
1930 else if ((s->flags & SEC_ALLOC) == 0)
71bfc0ae 1931 ;
252b5132 1932 else if ((s->flags & SEC_LOAD) != 0
ecca9871 1933 && ((iself && sh_type == SHT_NOTE)
0112cd26 1934 || (!iself && CONST_STRNEQ (secname, ".note"))))
afd7a018 1935 place = &hold[orphan_interp];
04c932a2 1936 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0)
afd7a018
AM
1937 place = &hold[orphan_bss];
1938 else if ((s->flags & SEC_SMALL_DATA) != 0)
1939 place = &hold[orphan_sdata];
d85e71fe
L
1940 else if ((s->flags & SEC_THREAD_LOCAL) != 0)
1941 place = &hold[orphan_tdata];
afd7a018
AM
1942 else if ((s->flags & SEC_READONLY) == 0)
1943 place = &hold[orphan_data];
ecca9871 1944 else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL))
0112cd26 1945 || (!iself && CONST_STRNEQ (secname, ".rel")))
afd7a018
AM
1946 && (s->flags & SEC_LOAD) != 0)
1947 place = &hold[orphan_rel];
1948 else if ((s->flags & SEC_CODE) == 0)
1949 place = &hold[orphan_rodata];
1950 else
1951 place = &hold[orphan_text];
71bfc0ae 1952
afd7a018 1953 after = NULL;
5ba47421 1954 if (place != NULL)
252b5132 1955 {
afd7a018 1956 if (place->os == NULL)
5ba47421 1957 {
afd7a018
AM
1958 if (place->name != NULL)
1959 place->os = lang_output_section_find (place->name);
1960 else
1961 place->os = output_rel_find (s, isdyn);
5ba47421 1962 }
afd7a018
AM
1963 after = place->os;
1964 if (after == NULL)
390fbbf1
AM
1965 after = lang_output_section_find_by_flags
1966 (s, &place->os, _bfd_elf_match_sections_by_type);
afd7a018
AM
1967 if (after == NULL)
1968 /* *ABS* is always the first output section statement. */
1969 after = &lang_output_section_statement.head->output_section_statement;
252b5132
RH
1970 }
1971
c2edb4b8 1972 return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL);
252b5132 1973}
c56feb2b
AM
1974EOF
1975fi
1976
eaeb0a9d 1977if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then
92b93329 1978fragment <<EOF
252b5132 1979
deb04cdb 1980static void
eaeb0a9d 1981gld${EMULATION_NAME}_after_allocation (void)
deb04cdb 1982{
75938853
AM
1983 int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info);
1984
1985 if (need_layout < 0)
1986 einfo ("%X%P: .eh_frame/.stab edit: %E\n");
1987 else
1988 gld${EMULATION_NAME}_map_segments (need_layout);
73d074b4 1989}
41392f03
AM
1990EOF
1991fi
1992
1993if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
92b93329 1994fragment <<EOF
252b5132
RH
1995
1996static char *
0c7a8e5a 1997gld${EMULATION_NAME}_get_script (int *isfile)
252b5132
RH
1998EOF
1999
7225345d 2000if test x"$COMPILE_IN" = xyes
252b5132
RH
2001then
2002# Scripts compiled in.
2003
2004# sed commands to quote an ld script as a C string.
597e2591 2005sc="-f stringify.sed"
252b5132 2006
92b93329 2007fragment <<EOF
60bcf0fa 2008{
252b5132
RH
2009 *isfile = 0;
2010
0e1862bb 2011 if (bfd_link_relocatable (&link_info) && config.build_constructors)
597e2591 2012 return
252b5132 2013EOF
afd7a018 2014sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
0e1862bb 2015echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018
AM
2016sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2017echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2018sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
61585df2 2019if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
afd7a018
AM
2020echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2021sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 2022fi
36af4a4e
JJ
2023if test -n "$GENERATE_PIE_SCRIPT" ; then
2024if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
0e1862bb
L
2025echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2026echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
2027echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2028echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2029sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
0e1862bb
L
2030echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2031echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2032sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
36af4a4e 2033fi
0e1862bb 2034echo ' ; else if (bfd_link_pie (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018 2035sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
36af4a4e 2036fi
252b5132 2037if test -n "$GENERATE_SHLIB_SCRIPT" ; then
82434356 2038if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
0e1862bb 2039echo ' ; else if (bfd_link_dll (&link_info) && link_info.combreloc' >> e${EMULATION_NAME}.c
8c37241b 2040echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2041echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2042sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
0e1862bb 2043echo ' ; else if (bfd_link_dll (&link_info) && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2044sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
82434356 2045fi
0e1862bb 2046echo ' ; else if (bfd_link_dll (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018 2047sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 2048fi
82434356 2049if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
8c37241b 2050echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2051echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018
AM
2052sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
2053echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
2054sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
82434356 2055fi
afd7a018
AM
2056echo ' ; else return' >> e${EMULATION_NAME}.c
2057sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2058echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
2059
2060else
2061# Scripts read from the filesystem.
2062
92b93329 2063fragment <<EOF
60bcf0fa 2064{
252b5132
RH
2065 *isfile = 1;
2066
0e1862bb 2067 if (bfd_link_relocatable (&link_info) && config.build_constructors)
252b5132 2068 return "ldscripts/${EMULATION_NAME}.xu";
0e1862bb 2069 else if (bfd_link_relocatable (&link_info))
252b5132
RH
2070 return "ldscripts/${EMULATION_NAME}.xr";
2071 else if (!config.text_read_only)
2072 return "ldscripts/${EMULATION_NAME}.xbn";
a060b769
AM
2073EOF
2074if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
2075else
92b93329 2076fragment <<EOF
252b5132
RH
2077 else if (!config.magic_demand_paged)
2078 return "ldscripts/${EMULATION_NAME}.xn";
a060b769
AM
2079EOF
2080fi
36af4a4e
JJ
2081if test -n "$GENERATE_PIE_SCRIPT" ; then
2082if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2083fragment <<EOF
0e1862bb
L
2084 else if (bfd_link_pie (&link_info)
2085 && link_info.combreloc
2086 && link_info.relro
2087 && (link_info.flags & DF_BIND_NOW))
8c37241b 2088 return "ldscripts/${EMULATION_NAME}.xdw";
0e1862bb
L
2089 else if (bfd_link_pie (&link_info)
2090 && link_info.combreloc)
36af4a4e
JJ
2091 return "ldscripts/${EMULATION_NAME}.xdc";
2092EOF
2093fi
92b93329 2094fragment <<EOF
0e1862bb 2095 else if (bfd_link_pie (&link_info))
36af4a4e
JJ
2096 return "ldscripts/${EMULATION_NAME}.xd";
2097EOF
2098fi
a060b769
AM
2099if test -n "$GENERATE_SHLIB_SCRIPT" ; then
2100if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2101fragment <<EOF
0e1862bb 2102 else if (bfd_link_dll (&link_info) && link_info.combreloc
fbfca19e 2103 && link_info.relro && (link_info.flags & DF_BIND_NOW))
8c37241b 2104 return "ldscripts/${EMULATION_NAME}.xsw";
0e1862bb 2105 else if (bfd_link_dll (&link_info) && link_info.combreloc)
a060b769
AM
2106 return "ldscripts/${EMULATION_NAME}.xsc";
2107EOF
2108fi
92b93329 2109fragment <<EOF
0e1862bb 2110 else if (bfd_link_dll (&link_info))
252b5132 2111 return "ldscripts/${EMULATION_NAME}.xs";
a060b769
AM
2112EOF
2113fi
2114if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2115fragment <<EOF
8c37241b 2116 else if (link_info.combreloc && link_info.relro
fbfca19e 2117 && (link_info.flags & DF_BIND_NOW))
8c37241b 2118 return "ldscripts/${EMULATION_NAME}.xw";
a060b769
AM
2119 else if (link_info.combreloc)
2120 return "ldscripts/${EMULATION_NAME}.xc";
2121EOF
2122fi
92b93329 2123fragment <<EOF
252b5132
RH
2124 else
2125 return "ldscripts/${EMULATION_NAME}.x";
2126}
252b5132 2127
3b108066 2128EOF
41392f03
AM
2129fi
2130fi
3b108066 2131
e0ee487b 2132if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
92b93329 2133fragment <<EOF
e0ee487b
L
2134 $PARSE_AND_LIST_PROLOGUE
2135EOF
2136fi
2137
92b93329 2138fragment <<EOF
e0ee487b 2139
6c1439be
L
2140#define OPTION_DISABLE_NEW_DTAGS (400)
2141#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
a1ab1d2a 2142#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
65765700 2143#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
b58f81ae 2144#define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
fdc90cb4 2145#define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1)
c0065db7 2146#define OPTION_BUILD_ID (OPTION_HASH_STYLE + 1)
7ee314fa 2147#define OPTION_AUDIT (OPTION_BUILD_ID + 1)
0ce398f1 2148#define OPTION_COMPRESS_DEBUG (OPTION_AUDIT + 1)
e13629bc 2149
3bcf5557 2150static void
0c7a8e5a
AM
2151gld${EMULATION_NAME}_add_options
2152 (int ns, char **shortopts, int nl, struct option **longopts,
2153 int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
e0ee487b 2154{
fb42df5e
AM
2155EOF
2156if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2157fragment <<EOF
7ee314fa 2158 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:";
fb42df5e
AM
2159EOF
2160else
2161fragment <<EOF
2162 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
2163EOF
2164fi
2165fragment <<EOF
3bcf5557 2166 static const struct option xtra_long[] = {
fb42df5e
AM
2167EOF
2168if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2169fragment <<EOF
7ee314fa 2170 {"audit", required_argument, NULL, OPTION_AUDIT},
fb42df5e
AM
2171 {"Bgroup", no_argument, NULL, OPTION_GROUP},
2172EOF
2173fi
2174fragment <<EOF
2175 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
0ce398f1 2176 {"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG},
e0ee487b 2177EOF
e0ee487b 2178if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2179fragment <<EOF
fb42df5e 2180 {"depaudit", required_argument, NULL, 'P'},
3bcf5557
AM
2181 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
2182 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
2183 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
b58f81ae 2184 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
fdc90cb4 2185 {"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
e0ee487b
L
2186EOF
2187fi
e0ee487b 2188if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
92b93329 2189fragment <<EOF
3bcf5557 2190 $PARSE_AND_LIST_LONGOPTS
e0ee487b
L
2191EOF
2192fi
92b93329 2193fragment <<EOF
3bcf5557
AM
2194 {NULL, no_argument, NULL, 0}
2195 };
2196
2197 *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
2198 memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
2199 *longopts = (struct option *)
2200 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
2201 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
2202}
04925e1e 2203
24382dca 2204#define DEFAULT_BUILD_ID_STYLE "sha1"
c0065db7 2205
3bcf5557 2206static bfd_boolean
0c7a8e5a 2207gld${EMULATION_NAME}_handle_option (int optc)
e0ee487b 2208{
e0ee487b
L
2209 switch (optc)
2210 {
2211 default:
3bcf5557 2212 return FALSE;
6c1439be 2213
c0065db7 2214 case OPTION_BUILD_ID:
30e8ee25 2215 if (emit_note_gnu_build_id != NULL)
c0065db7 2216 {
30e8ee25
AM
2217 free ((char *) emit_note_gnu_build_id);
2218 emit_note_gnu_build_id = NULL;
c0065db7
RM
2219 }
2220 if (optarg == NULL)
2221 optarg = DEFAULT_BUILD_ID_STYLE;
2222 if (strcmp (optarg, "none"))
30e8ee25 2223 emit_note_gnu_build_id = xstrdup (optarg);
c0065db7 2224 break;
fb42df5e 2225
0ce398f1
L
2226 case OPTION_COMPRESS_DEBUG:
2227 if (strcasecmp (optarg, "none") == 0)
2228 link_info.compress_debug = COMPRESS_DEBUG_NONE;
2229 else if (strcasecmp (optarg, "zlib") == 0)
19a7fe52 2230 link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
0ce398f1
L
2231 else if (strcasecmp (optarg, "zlib-gnu") == 0)
2232 link_info.compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
2233 else if (strcasecmp (optarg, "zlib-gabi") == 0)
2234 link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
2235 else
2236 einfo (_("%P%F: invalid --compress-debug-sections option: \`%s'\n"),
2237 optarg);
2238 break;
fb42df5e
AM
2239EOF
2240
2241if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2242fragment <<EOF
7ee314fa 2243 case OPTION_AUDIT:
4724d37e 2244 gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg);
7ee314fa 2245 break;
fb42df5e 2246
7ee314fa
AM
2247 case 'P':
2248 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg);
2249 break;
c0065db7 2250
6c1439be 2251 case OPTION_DISABLE_NEW_DTAGS:
b34976b6 2252 link_info.new_dtags = FALSE;
6c1439be
L
2253 break;
2254
2255 case OPTION_ENABLE_NEW_DTAGS:
b34976b6 2256 link_info.new_dtags = TRUE;
6c1439be
L
2257 break;
2258
65765700 2259 case OPTION_EH_FRAME_HDR:
2f0c68f2 2260 link_info.eh_frame_hdr_type = DWARF2_EH_HDR;
65765700
JJ
2261 break;
2262
a1ab1d2a
UD
2263 case OPTION_GROUP:
2264 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
2265 /* Groups must be self-contained. */
560e09e9
NC
2266 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2267 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
a1ab1d2a
UD
2268 break;
2269
b58f81ae
DJ
2270 case OPTION_EXCLUDE_LIBS:
2271 add_excluded_libs (optarg);
2272 break;
2273
fdc90cb4
JJ
2274 case OPTION_HASH_STYLE:
2275 link_info.emit_hash = FALSE;
2276 link_info.emit_gnu_hash = FALSE;
2277 if (strcmp (optarg, "sysv") == 0)
2278 link_info.emit_hash = TRUE;
2279 else if (strcmp (optarg, "gnu") == 0)
2280 link_info.emit_gnu_hash = TRUE;
2281 else if (strcmp (optarg, "both") == 0)
2282 {
2283 link_info.emit_hash = TRUE;
2284 link_info.emit_gnu_hash = TRUE;
2285 }
2286 else
2287 einfo (_("%P%F: invalid hash style \`%s'\n"), optarg);
2288 break;
2289
fb42df5e
AM
2290EOF
2291fi
2292fragment <<EOF
e0ee487b 2293 case 'z':
fb42df5e
AM
2294 if (strcmp (optarg, "defs") == 0)
2295 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2296 else if (strcmp (optarg, "muldefs") == 0)
2297 link_info.allow_multiple_definition = TRUE;
2298 else if (CONST_STRNEQ (optarg, "max-page-size="))
2299 {
2300 char *end;
2301
2302 config.maxpagesize = strtoul (optarg + 14, &end, 0);
2303 if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0)
2304 einfo (_("%P%F: invalid maxium page size \`%s'\n"),
2305 optarg + 14);
2306 }
2307 else if (CONST_STRNEQ (optarg, "common-page-size="))
2308 {
2309 char *end;
2310 config.commonpagesize = strtoul (optarg + 17, &end, 0);
2311 if (*end
2312 || (config.commonpagesize & (config.commonpagesize - 1)) != 0)
2313 einfo (_("%P%F: invalid common page size \`%s'\n"),
2314 optarg + 17);
2315 }
04c3a755
NS
2316 else if (CONST_STRNEQ (optarg, "stack-size="))
2317 {
2318 char *end;
2319 link_info.stacksize = strtoul (optarg + 11, &end, 0);
2320 if (*end || link_info.stacksize < 0)
2321 einfo (_("%P%F: invalid stack size \`%s'\n"), optarg + 11);
2322 if (!link_info.stacksize)
2323 /* Use -1 for explicit no-stack, because zero means
2324 'default'. */
2325 link_info.stacksize = -1;
2326 }
fb42df5e
AM
2327 else if (strcmp (optarg, "execstack") == 0)
2328 {
2329 link_info.execstack = TRUE;
2330 link_info.noexecstack = FALSE;
2331 }
2332 else if (strcmp (optarg, "noexecstack") == 0)
2333 {
2334 link_info.noexecstack = TRUE;
2335 link_info.execstack = FALSE;
2336 }
2337EOF
d258b828 2338
fb42df5e
AM
2339if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2340fragment <<EOF
b039ef04
L
2341 else if (strcmp (optarg, "global") == 0)
2342 link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL;
fb42df5e 2343 else if (strcmp (optarg, "initfirst") == 0)
e0ee487b
L
2344 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
2345 else if (strcmp (optarg, "interpose") == 0)
2346 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
2347 else if (strcmp (optarg, "loadfltr") == 0)
2348 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
2349 else if (strcmp (optarg, "nodefaultlib") == 0)
2350 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
2351 else if (strcmp (optarg, "nodelete") == 0)
2352 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
2353 else if (strcmp (optarg, "nodlopen") == 0)
2354 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
2355 else if (strcmp (optarg, "nodump") == 0)
2356 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
2357 else if (strcmp (optarg, "now") == 0)
2358 {
2359 link_info.flags |= (bfd_vma) DF_BIND_NOW;
2360 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
2361 }
5fa222e4
AM
2362 else if (strcmp (optarg, "lazy") == 0)
2363 {
2364 link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
2365 link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
2366 }
e0ee487b
L
2367 else if (strcmp (optarg, "origin") == 0)
2368 {
2369 link_info.flags |= (bfd_vma) DF_ORIGIN;
2370 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
2371 }
db6751f2 2372 else if (strcmp (optarg, "combreloc") == 0)
b34976b6 2373 link_info.combreloc = TRUE;
db6751f2 2374 else if (strcmp (optarg, "nocombreloc") == 0)
b34976b6 2375 link_info.combreloc = FALSE;
8bd621d8 2376 else if (strcmp (optarg, "nocopyreloc") == 0)
0c7a8e5a 2377 link_info.nocopyreloc = TRUE;
8c37241b
JJ
2378 else if (strcmp (optarg, "relro") == 0)
2379 link_info.relro = TRUE;
2380 else if (strcmp (optarg, "norelro") == 0)
2381 link_info.relro = FALSE;
c192a133
AM
2382 else if (strcmp (optarg, "text") == 0)
2383 link_info.error_textrel = TRUE;
2384 else if (strcmp (optarg, "notext") == 0)
2385 link_info.error_textrel = FALSE;
2386 else if (strcmp (optarg, "textoff") == 0)
2387 link_info.error_textrel = FALSE;
88b882e9 2388EOF
fb42df5e 2389fi
88b882e9 2390
eba27bd7
L
2391if test -n "$PARSE_AND_LIST_ARGS_CASE_Z" ; then
2392fragment <<EOF
2393 $PARSE_AND_LIST_ARGS_CASE_Z
2394EOF
2395fi
2396
92b93329 2397fragment <<EOF
fb42df5e
AM
2398 else
2399 einfo (_("%P: warning: -z %s ignored.\n"), optarg);
6c1439be 2400 break;
e0ee487b 2401EOF
e0ee487b
L
2402
2403if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
92b93329 2404fragment <<EOF
e0ee487b
L
2405 $PARSE_AND_LIST_ARGS_CASES
2406EOF
2407fi
2408
92b93329 2409fragment <<EOF
e0ee487b
L
2410 }
2411
3bcf5557 2412 return TRUE;
e0ee487b
L
2413}
2414
41392f03 2415EOF
41392f03 2416
4b209b22 2417if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
c58212ea 2418gld_list_options="gld${EMULATION_NAME}_list_options"
eba27bd7 2419if test -n "$PARSE_AND_LIST_OPTIONS"; then
92b93329 2420fragment <<EOF
41392f03 2421
e0ee487b 2422static void
0c7a8e5a 2423gld${EMULATION_NAME}_list_options (FILE * file)
e0ee487b 2424{
fb42df5e 2425EOF
e0ee487b
L
2426
2427if test -n "$PARSE_AND_LIST_OPTIONS" ; then
92b93329 2428fragment <<EOF
e0ee487b
L
2429 $PARSE_AND_LIST_OPTIONS
2430EOF
2431fi
2432
92b93329 2433fragment <<EOF
e0ee487b
L
2434}
2435EOF
c58212ea
L
2436else
2437 gld_list_options="NULL"
2438fi
e0ee487b
L
2439
2440if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
92b93329 2441fragment <<EOF
e0ee487b
L
2442 $PARSE_AND_LIST_EPILOGUE
2443EOF
2444fi
41392f03 2445fi
e0ee487b 2446
92b93329 2447fragment <<EOF
252b5132 2448
60bcf0fa 2449struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
252b5132 2450{
41392f03
AM
2451 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
2452 ${LDEMUL_SYSLIB-syslib_default},
2453 ${LDEMUL_HLL-hll_default},
eeaa4577 2454 ${LDEMUL_AFTER_PARSE-after_parse_default},
41392f03 2455 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
eaeb0a9d 2456 ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation},
41392f03
AM
2457 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
2458 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
2459 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
2460 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
252b5132
RH
2461 "${EMULATION_NAME}",
2462 "${OUTPUT_FORMAT}",
eaeb0a9d 2463 ${LDEMUL_FINISH-finish_default},
41392f03
AM
2464 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
2465 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
2466 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
2467 ${LDEMUL_SET_SYMBOLS-NULL},
3bcf5557
AM
2468 ${LDEMUL_PARSE_ARGS-NULL},
2469 gld${EMULATION_NAME}_add_options,
2470 gld${EMULATION_NAME}_handle_option,
41392f03 2471 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
c58212ea 2472 ${LDEMUL_LIST_OPTIONS-${gld_list_options}},
4a43e768 2473 ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
41392f03 2474 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
7a2f2d82
DD
2475 ${LDEMUL_NEW_VERS_PATTERN-NULL},
2476 ${LDEMUL_EXTRA_MAP_FILE_TEXT-NULL}
252b5132
RH
2477};
2478EOF
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