Allow any size enum in gdb.cp/var-tag.exp.
[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${EMULATION_NAME}_before_parse (void);
5fe2850d 63static void gld${EMULATION_NAME}_after_parse (void);
0c7a8e5a
AM
64static void gld${EMULATION_NAME}_after_open (void);
65static void gld${EMULATION_NAME}_before_allocation (void);
eaeb0a9d 66static void gld${EMULATION_NAME}_after_allocation (void);
c2edb4b8 67static lang_output_section_statement_type *gld${EMULATION_NAME}_place_orphan
8a99a385 68 (asection *, const char *, int);
41392f03
AM
69EOF
70
d3989512
JJ
71if [ "x${USE_LIBPATH}" = xyes ] ; then
72 case ${target} in
a5244b7e 73 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 74 fragment <<EOF
0b48acfe 75#ifdef HAVE_GLOB
d3989512 76#include <glob.h>
0b48acfe 77#endif
d3989512
JJ
78EOF
79 ;;
80 esac
81fi
82
41392f03
AM
83# Import any needed special functions and/or overrides.
84#
92b93329 85source_em ${srcdir}/emultempl/elf-generic.em
41392f03 86if test -n "$EXTRA_EM_FILE" ; then
92b93329 87 source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
41392f03
AM
88fi
89
f813923c 90# Functions in this file can be overridden by setting the LDEMUL_* shell
41392f03
AM
91# variables. If the name of the overriding function is the same as is
92# defined in this file, then don't output this file's version.
93# If a different overriding name is given then output the standard function
94# as presumably it is called from the overriding function.
95#
96if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
92b93329 97fragment <<EOF
41392f03 98
252b5132 99static void
0c7a8e5a 100gld${EMULATION_NAME}_before_parse (void)
252b5132 101{
5e2f1575 102 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
66be1055 103 input_flags.dynamic = ${DYNAMIC_LINK-TRUE};
b34976b6 104 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
4724d37e 105 config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
663fa543
L
106}
107
822b8bf4 108EOF
663fa543 109fi
822b8bf4 110
5fe2850d
L
111if test x"$LDEMUL_AFTER_PARSE" != xgld"$EMULATION_NAME"_after_parse; then
112fragment <<EOF
113
114static void
115gld${EMULATION_NAME}_after_parse (void)
116{
117 if (bfd_link_pie (&link_info))
118 link_info.flags_1 |= (bfd_vma) DF_1_PIE;
119
120 after_parse_default ();
121}
122
123EOF
124fi
125
4a43e768 126if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then
92b93329 127fragment <<EOF
ddbb8a31 128/* Handle the generation of DT_NEEDED tags. */
4a43e768
AM
129
130static bfd_boolean
131gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
132{
96d56e9f 133 int link_class = 0;
4a43e768
AM
134
135 /* Tell the ELF linker that we don't want the output file to have a
136 DT_NEEDED entry for this file, unless it is used to resolve
137 references in a regular object. */
66be1055 138 if (entry->flags.add_DT_NEEDED_for_regular)
96d56e9f 139 link_class = DYN_AS_NEEDED;
e56f61be
L
140
141 /* Tell the ELF linker that we don't want the output file to have a
142 DT_NEEDED entry for any dynamic library in DT_NEEDED tags from
143 this file at all. */
66be1055 144 if (!entry->flags.add_DT_NEEDED_for_dynamic)
96d56e9f 145 link_class |= DYN_NO_ADD_NEEDED;
e56f61be 146
66be1055 147 if (entry->flags.just_syms
12b9ff6c
L
148 && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0)
149 einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"),
150 entry->the_bfd);
151
ddbb8a31 152 if (link_class == 0
e56f61be
L
153 || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0)
154 return FALSE;
155
1e9cc1c2 156 bfd_elf_set_dyn_lib_class (entry->the_bfd,
4724d37e 157 (enum dynamic_lib_link_class) link_class);
4a43e768
AM
158
159 /* Continue on with normal load_symbols processing. */
160 return FALSE;
161}
162EOF
163fi
164
92b93329 165fragment <<EOF
252b5132
RH
166
167/* These variables are required to pass information back and forth
168 between after_open and check_needed and stat_needed and vercheck. */
169
170static struct bfd_link_needed_list *global_needed;
171static struct stat global_stat;
e13629bc 172static lang_input_statement_type *global_found;
252b5132 173static struct bfd_link_needed_list *global_vercheck_needed;
b34976b6 174static bfd_boolean global_vercheck_failed;
252b5132 175
7ee314fa
AM
176/* These variables are used to implement target options */
177
178static char *audit; /* colon (typically) separated list of libs */
179static char *depaudit; /* colon (typically) separated list of libs */
252b5132 180
30e8ee25
AM
181/* Style of .note.gnu.build-id section. */
182static const char *emit_note_gnu_build_id;
183
04925e1e
AM
184/* On Linux, it's possible to have different versions of the same
185 shared library linked against different versions of libc. The
186 dynamic linker somehow tags which libc version to use in
187 /etc/ld.so.cache, and, based on the libc that it sees in the
188 executable, chooses which version of the shared library to use.
252b5132 189
04925e1e
AM
190 We try to do a similar check here by checking whether this shared
191 library needs any other shared libraries which may conflict with
192 libraries we have already included in the link. If it does, we
193 skip it, and try to find another shared library farther on down the
194 link path.
252b5132 195
04925e1e
AM
196 This is called via lang_for_each_input_file.
197 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
f813923c 198 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
04925e1e 199 a conflicting version. */
252b5132 200
04925e1e 201static void
0c7a8e5a 202gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
04925e1e 203{
1c9acd94 204 const char *soname;
04925e1e 205 struct bfd_link_needed_list *l;
252b5132 206
04925e1e
AM
207 if (global_vercheck_failed)
208 return;
209 if (s->the_bfd == NULL
210 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
211 return;
252b5132 212
04925e1e
AM
213 soname = bfd_elf_get_dt_soname (s->the_bfd);
214 if (soname == NULL)
fed2999d 215 soname = lbasename (bfd_get_filename (s->the_bfd));
04925e1e
AM
216
217 for (l = global_vercheck_needed; l != NULL; l = l->next)
218 {
219 const char *suffix;
220
42627821 221 if (filename_cmp (soname, l->name) == 0)
04925e1e
AM
222 {
223 /* Probably can't happen, but it's an easy check. */
224 continue;
252b5132
RH
225 }
226
04925e1e 227 if (strchr (l->name, '/') != NULL)
252b5132
RH
228 continue;
229
04925e1e
AM
230 suffix = strstr (l->name, ".so.");
231 if (suffix == NULL)
232 continue;
233
234 suffix += sizeof ".so." - 1;
235
42627821 236 if (filename_ncmp (soname, l->name, suffix - l->name) == 0)
04925e1e
AM
237 {
238 /* Here we know that S is a dynamic object FOO.SO.VER1, and
0c7a8e5a
AM
239 the object we are considering needs a dynamic object
240 FOO.SO.VER2, and VER1 and VER2 are different. This
241 appears to be a version mismatch, so we tell the caller
242 to try a different version of this library. */
b34976b6 243 global_vercheck_failed = TRUE;
04925e1e
AM
244 return;
245 }
252b5132
RH
246 }
247}
248
252b5132 249
04925e1e
AM
250/* See if an input file matches a DT_NEEDED entry by running stat on
251 the file. */
252
253static void
0c7a8e5a 254gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
252b5132 255{
04925e1e
AM
256 struct stat st;
257 const char *suffix;
258 const char *soname;
252b5132 259
e13629bc 260 if (global_found != NULL)
04925e1e
AM
261 return;
262 if (s->the_bfd == NULL)
263 return;
e13629bc
AM
264
265 /* If this input file was an as-needed entry, and wasn't found to be
266 needed at the stage it was linked, then don't say we have loaded it. */
267 if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86 268 return;
04925e1e
AM
269
270 if (bfd_stat (s->the_bfd, &st) != 0)
252b5132 271 {
04925e1e
AM
272 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
273 return;
274 }
252b5132 275
9eabd475
ZW
276 /* Some operating systems, e.g. Windows, do not provide a meaningful
277 st_ino; they always set it to zero. (Windows does provide a
278 meaningful st_dev.) Do not indicate a duplicate library in that
279 case. While there is no guarantee that a system that provides
280 meaningful inode numbers will never set st_ino to zero, this is
281 merely an optimization, so we do not need to worry about false
282 negatives. */
04925e1e 283 if (st.st_dev == global_stat.st_dev
9eabd475
ZW
284 && st.st_ino == global_stat.st_ino
285 && st.st_ino != 0)
04925e1e 286 {
e13629bc 287 global_found = s;
04925e1e
AM
288 return;
289 }
252b5132 290
04925e1e
AM
291 /* We issue a warning if it looks like we are including two
292 different versions of the same shared library. For example,
293 there may be a problem if -lc picks up libc.so.6 but some other
294 shared library has a DT_NEEDED entry of libc.so.5. This is a
f813923c 295 heuristic test, and it will only work if the name looks like
04925e1e
AM
296 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
297 If we really want to issue warnings about mixing version numbers
298 of shared libraries, we need to find a better way. */
252b5132 299
04925e1e
AM
300 if (strchr (global_needed->name, '/') != NULL)
301 return;
302 suffix = strstr (global_needed->name, ".so.");
303 if (suffix == NULL)
304 return;
305 suffix += sizeof ".so." - 1;
252b5132 306
04925e1e
AM
307 soname = bfd_elf_get_dt_soname (s->the_bfd);
308 if (soname == NULL)
fed2999d 309 soname = lbasename (s->filename);
252b5132 310
42627821 311 if (filename_ncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
04925e1e 312 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
1c9acd94 313 global_needed->name, global_needed->by, soname);
252b5132
RH
314}
315
e56f61be
L
316struct dt_needed
317{
318 bfd *by;
319 const char *name;
320};
04925e1e 321
252b5132
RH
322/* This function is called for each possible name for a dynamic object
323 named by a DT_NEEDED entry. The FORCE parameter indicates whether
324 to skip the check for a conflicting version. */
325
b34976b6 326static bfd_boolean
e56f61be
L
327gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
328 int force)
252b5132
RH
329{
330 bfd *abfd;
e56f61be 331 const char *name = needed->name;
ec4eb78a 332 const char *soname;
96d56e9f 333 int link_class;
252b5132 334
f13a99db 335 abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd));
252b5132 336 if (abfd == NULL)
b34976b6 337 return FALSE;
4a114e3e
L
338
339 /* Linker needs to decompress sections. */
340 abfd->flags |= BFD_DECOMPRESS;
341
252b5132
RH
342 if (! bfd_check_format (abfd, bfd_object))
343 {
cde43e70 344 bfd_close (abfd);
b34976b6 345 return FALSE;
252b5132
RH
346 }
347 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
348 {
cde43e70 349 bfd_close (abfd);
b34976b6 350 return FALSE;
252b5132
RH
351 }
352
c4bb8067 353 /* For DT_NEEDED, they have to match. */
f13a99db 354 if (abfd->xvec != link_info.output_bfd->xvec)
c4bb8067
L
355 {
356 bfd_close (abfd);
b34976b6 357 return FALSE;
c4bb8067
L
358 }
359
252b5132
RH
360 /* Check whether this object would include any conflicting library
361 versions. If FORCE is set, then we skip this check; we use this
362 the second time around, if we couldn't find any compatible
363 instance of the shared library. */
364
365 if (! force)
366 {
91d6fa6a 367 struct bfd_link_needed_list *needs;
252b5132 368
91d6fa6a 369 if (! bfd_elf_get_bfd_needed_list (abfd, &needs))
252b5132
RH
370 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
371
91d6fa6a 372 if (needs != NULL)
252b5132 373 {
91d6fa6a 374 global_vercheck_needed = needs;
b34976b6 375 global_vercheck_failed = FALSE;
252b5132
RH
376 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
377 if (global_vercheck_failed)
378 {
cde43e70 379 bfd_close (abfd);
b34976b6 380 /* Return FALSE to force the caller to move on to try
0c7a8e5a 381 another file on the search path. */
b34976b6 382 return FALSE;
252b5132
RH
383 }
384
385 /* But wait! It gets much worse. On Linux, if a shared
0c7a8e5a
AM
386 library does not use libc at all, we are supposed to skip
387 it the first time around in case we encounter a shared
388 library later on with the same name which does use the
389 version of libc that we want. This is much too horrible
390 to use on any system other than Linux. */
252b5132
RH
391
392EOF
393case ${target} in
a5244b7e 394 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 395 fragment <<EOF
252b5132
RH
396 {
397 struct bfd_link_needed_list *l;
398
91d6fa6a 399 for (l = needs; l != NULL; l = l->next)
0112cd26 400 if (CONST_STRNEQ (l->name, "libc.so"))
252b5132
RH
401 break;
402 if (l == NULL)
403 {
cde43e70 404 bfd_close (abfd);
b34976b6 405 return FALSE;
252b5132
RH
406 }
407 }
408
409EOF
410 ;;
411esac
92b93329 412fragment <<EOF
252b5132
RH
413 }
414 }
415
416 /* We've found a dynamic object matching the DT_NEEDED entry. */
417
04925e1e
AM
418 /* We have already checked that there is no other input file of the
419 same name. We must now check again that we are not including the
420 same file twice. We need to do this because on many systems
421 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
422 reference libc.so.1. If we have already included libc.so, we
423 don't want to include libc.so.1 if they are the same file, and we
424 can only check that using stat. */
425
426 if (bfd_stat (abfd, &global_stat) != 0)
427 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
ec4eb78a
L
428
429 /* First strip off everything before the last '/'. */
fed2999d 430 soname = lbasename (abfd->filename);
ec4eb78a 431
cd6f1cf3 432 if (verbose)
ec4eb78a
L
433 info_msg (_("found %s at %s\n"), soname, name);
434
e13629bc 435 global_found = NULL;
04925e1e 436 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
e13629bc 437 if (global_found != NULL)
04925e1e 438 {
b34976b6 439 /* Return TRUE to indicate that we found the file, even though
0c7a8e5a 440 we aren't going to do anything with it. */
b34976b6 441 return TRUE;
04925e1e
AM
442 }
443
4a43e768
AM
444 /* Specify the soname to use. */
445 bfd_elf_set_dt_needed_name (abfd, soname);
04925e1e 446
4a43e768
AM
447 /* Tell the ELF linker that we don't want the output file to have a
448 DT_NEEDED entry for this file, unless it is used to resolve
449 references in a regular object. */
96d56e9f 450 link_class = DYN_DT_NEEDED;
e56f61be
L
451
452 /* Tell the ELF linker that we don't want the output file to have a
453 DT_NEEDED entry for this file at all if the entry is from a file
454 with DYN_NO_ADD_NEEDED. */
7e9f0867
AM
455 if (needed->by != NULL
456 && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
96d56e9f 457 link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
e56f61be 458
1e9cc1c2 459 bfd_elf_set_dyn_lib_class (abfd, (enum dynamic_lib_link_class) link_class);
04925e1e
AM
460
461 /* Add this file into the symbol table. */
462 if (! bfd_link_add_symbols (abfd, &link_info))
8ff4c1f3 463 einfo ("%F%B: error adding symbols: %E\n", abfd);
04925e1e 464
b34976b6 465 return TRUE;
04925e1e
AM
466}
467
468
469/* Search for a needed file in a path. */
470
b34976b6 471static bfd_boolean
e56f61be
L
472gld${EMULATION_NAME}_search_needed (const char *path,
473 struct dt_needed *n, int force)
04925e1e
AM
474{
475 const char *s;
e56f61be 476 const char *name = n->name;
04925e1e 477 size_t len;
e56f61be 478 struct dt_needed needed;
04925e1e 479
cc5ce052 480 if (name[0] == '/')
e56f61be 481 return gld${EMULATION_NAME}_try_needed (n, force);
cc5ce052 482
04925e1e 483 if (path == NULL || *path == '\0')
b34976b6 484 return FALSE;
e56f61be
L
485
486 needed.by = n->by;
487 needed.name = n->name;
488
04925e1e
AM
489 len = strlen (name);
490 while (1)
491 {
492 char *filename, *sset;
493
c76308d2 494 s = strchr (path, config.rpath_separator);
04925e1e
AM
495 if (s == NULL)
496 s = path + strlen (path);
497
07f1e47a
AM
498#if HAVE_DOS_BASED_FILE_SYSTEM
499 /* Assume a match on the second char is part of drive specifier. */
500 else if (config.rpath_separator == ':'
501 && s == path + 1
502 && ISALPHA (*path))
503 {
504 s = strchr (s + 1, config.rpath_separator);
505 if (s == NULL)
506 s = path + strlen (path);
507 }
508#endif
04925e1e
AM
509 filename = (char *) xmalloc (s - path + len + 2);
510 if (s == path)
511 sset = filename;
512 else
513 {
514 memcpy (filename, path, s - path);
515 filename[s - path] = '/';
516 sset = filename + (s - path) + 1;
517 }
518 strcpy (sset, name);
519
e56f61be
L
520 needed.name = filename;
521 if (gld${EMULATION_NAME}_try_needed (&needed, force))
b34976b6 522 return TRUE;
04925e1e
AM
523
524 free (filename);
525
526 if (*s == '\0')
527 break;
528 path = s + 1;
529 }
530
b34976b6 531 return FALSE;
04925e1e
AM
532}
533
534EOF
9c8ebd6a 535if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 536 fragment <<EOF
9c8ebd6a 537
c76308d2
RS
538/* Add the sysroot to every entry in a path separated by
539 config.rpath_separator. */
9c8ebd6a
DJ
540
541static char *
0c7a8e5a 542gld${EMULATION_NAME}_add_sysroot (const char *path)
9c8ebd6a
DJ
543{
544 int len, colons, i;
545 char *ret, *p;
546
547 len = strlen (path);
548 colons = 0;
549 i = 0;
550 while (path[i])
c76308d2 551 if (path[i++] == config.rpath_separator)
9c8ebd6a
DJ
552 colons++;
553
554 if (path[i])
555 colons++;
556
42644a89 557 len = len + (colons + 1) * strlen (ld_sysroot);
9c8ebd6a
DJ
558 ret = xmalloc (len + 1);
559 strcpy (ret, ld_sysroot);
560 p = ret + strlen (ret);
561 i = 0;
562 while (path[i])
c76308d2 563 if (path[i] == config.rpath_separator)
9c8ebd6a 564 {
0c7a8e5a 565 *p++ = path[i++];
9c8ebd6a
DJ
566 strcpy (p, ld_sysroot);
567 p = p + strlen (p);
9c8ebd6a
DJ
568 }
569 else
570 *p++ = path[i++];
571
572 *p = 0;
573 return ret;
574}
04925e1e 575
3dc16cab
DJ
576EOF
577 case ${target} in
ebe1fac1 578 *-*-freebsd* | *-*-dragonfly*)
92b93329 579 fragment <<EOF
ebe1fac1
NC
580/* Read the system search path the FreeBSD way rather than the Linux way. */
581#ifdef HAVE_ELF_HINTS_H
582#include <elf-hints.h>
583#else
584#include "elf-hints-local.h"
585#endif
586
587static bfd_boolean
d5c8b1f8
AM
588gld${EMULATION_NAME}_check_ld_elf_hints (const struct bfd_link_needed_list *l,
589 int force)
ebe1fac1
NC
590{
591 static bfd_boolean initialized;
592 static char *ld_elf_hints;
593 struct dt_needed needed;
594
595 if (!initialized)
596 {
597 FILE *f;
598 char *tmppath;
599
ff7a0acf 600 tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL);
ebe1fac1
NC
601 f = fopen (tmppath, FOPEN_RB);
602 free (tmppath);
603 if (f != NULL)
604 {
605 struct elfhints_hdr hdr;
606
607 if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr)
608 && hdr.magic == ELFHINTS_MAGIC
609 && hdr.version == 1)
610 {
611 if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1)
612 {
613 char *b;
614
615 b = xmalloc (hdr.dirlistlen + 1);
616 if (fread (b, 1, hdr.dirlistlen + 1, f) ==
617 hdr.dirlistlen + 1)
618 ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b);
e13629bc 619
ebe1fac1
NC
620 free (b);
621 }
622 }
623 fclose (f);
624 }
625
626 initialized = TRUE;
627 }
628
629 if (ld_elf_hints == NULL)
630 return FALSE;
631
d5c8b1f8
AM
632 needed.by = l->by;
633 needed.name = l->name;
634 return gld${EMULATION_NAME}_search_needed (ld_elf_hints, &needed, force);
ebe1fac1
NC
635}
636EOF
637 # FreeBSD
638 ;;
639
a5244b7e 640 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 641 fragment <<EOF
04925e1e
AM
642/* For a native linker, check the file /etc/ld.so.conf for directories
643 in which we may find shared libraries. /etc/ld.so.conf is really
482e8b32 644 only meaningful on Linux. */
04925e1e 645
d3989512 646struct gld${EMULATION_NAME}_ld_so_conf
04925e1e 647{
d3989512
JJ
648 char *path;
649 size_t len, alloc;
650};
04925e1e 651
dfcffada 652static bfd_boolean
d3989512
JJ
653gld${EMULATION_NAME}_parse_ld_so_conf
654 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
655
656static void
657gld${EMULATION_NAME}_parse_ld_so_conf_include
658 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
659 const char *pattern)
660{
661 char *newp = NULL;
0b48acfe 662#ifdef HAVE_GLOB
d3989512 663 glob_t gl;
0b48acfe 664#endif
d3989512
JJ
665
666 if (pattern[0] != '/')
04925e1e 667 {
d3989512
JJ
668 char *p = strrchr (filename, '/');
669 size_t patlen = strlen (pattern) + 1;
04925e1e 670
d3989512
JJ
671 newp = xmalloc (p - filename + 1 + patlen);
672 memcpy (newp, filename, p - filename + 1);
673 memcpy (newp + (p - filename + 1), pattern, patlen);
674 pattern = newp;
675 }
04925e1e 676
0b48acfe 677#ifdef HAVE_GLOB
d3989512
JJ
678 if (glob (pattern, 0, NULL, &gl) == 0)
679 {
680 size_t i;
681
682 for (i = 0; i < gl.gl_pathc; ++i)
683 gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
684 globfree (&gl);
685 }
0b48acfe
MM
686#else
687 /* If we do not have glob, treat the pattern as a literal filename. */
688 gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
689#endif
d3989512
JJ
690
691 if (newp)
692 free (newp);
693}
694
dfcffada 695static bfd_boolean
d3989512
JJ
696gld${EMULATION_NAME}_parse_ld_so_conf
697 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
698{
699 FILE *f = fopen (filename, FOPEN_RT);
563f4125
JJ
700 char *line;
701 size_t linelen;
d3989512
JJ
702
703 if (f == NULL)
dfcffada 704 return FALSE;
d3989512 705
563f4125
JJ
706 linelen = 256;
707 line = xmalloc (linelen);
708 do
d3989512 709 {
563f4125
JJ
710 char *p = line, *q;
711
712 /* Normally this would use getline(3), but we need to be portable. */
713 while ((q = fgets (p, linelen - (p - line), f)) != NULL
714 && strlen (q) == linelen - (p - line) - 1
715 && line[linelen - 2] != '\n')
716 {
717 line = xrealloc (line, 2 * linelen);
718 p = line + linelen - 1;
719 linelen += linelen;
720 }
721
722 if (q == NULL && p == line)
723 break;
d3989512
JJ
724
725 p = strchr (line, '\n');
726 if (p)
727 *p = '\0';
728
729 /* Because the file format does not know any form of quoting we
730 can search forward for the next '#' character and if found
731 make it terminating the line. */
732 p = strchr (line, '#');
733 if (p)
734 *p = '\0';
735
736 /* Remove leading whitespace. NUL is no whitespace character. */
737 p = line;
738 while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
739 ++p;
740
741 /* If the line is blank it is ignored. */
742 if (p[0] == '\0')
743 continue;
04925e1e 744
0112cd26 745 if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t'))
d3989512
JJ
746 {
747 char *dir, c;
748 p += 8;
749 do
04925e1e 750 {
d3989512
JJ
751 while (*p == ' ' || *p == '\t')
752 ++p;
04925e1e 753
d3989512
JJ
754 if (*p == '\0')
755 break;
252b5132 756
d3989512
JJ
757 dir = p;
758
759 while (*p != ' ' && *p != '\t' && *p)
760 ++p;
761
762 c = *p;
763 *p++ = '\0';
764 if (dir[0] != '\0')
765 gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
766 dir);
767 }
768 while (c != '\0');
769 }
770 else
771 {
772 char *dir = p;
773 while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
774 && *p != '\r' && *p != '\v')
775 ++p;
776
777 while (p != dir && p[-1] == '/')
778 --p;
779 if (info->path == NULL)
780 {
781 info->alloc = p - dir + 1 + 256;
782 info->path = xmalloc (info->alloc);
783 info->len = 0;
784 }
04925e1e
AM
785 else
786 {
d3989512
JJ
787 if (info->len + 1 + (p - dir) >= info->alloc)
788 {
789 info->alloc += p - dir + 256;
790 info->path = xrealloc (info->path, info->alloc);
791 }
c76308d2 792 info->path[info->len++] = config.rpath_separator;
04925e1e 793 }
d3989512
JJ
794 memcpy (info->path + info->len, dir, p - dir);
795 info->len += p - dir;
796 info->path[info->len] = '\0';
797 }
798 }
563f4125 799 while (! feof (f));
d3989512
JJ
800 free (line);
801 fclose (f);
dfcffada 802 return TRUE;
d3989512 803}
252b5132 804
d3989512 805static bfd_boolean
d5c8b1f8
AM
806gld${EMULATION_NAME}_check_ld_so_conf (const struct bfd_link_needed_list *l,
807 int force)
d3989512
JJ
808{
809 static bfd_boolean initialized;
810 static char *ld_so_conf;
811 struct dt_needed needed;
252b5132 812
d3989512
JJ
813 if (! initialized)
814 {
815 char *tmppath;
816 struct gld${EMULATION_NAME}_ld_so_conf info;
9c8ebd6a 817
d3989512
JJ
818 info.path = NULL;
819 info.len = info.alloc = 0;
ff7a0acf
AM
820 tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf",
821 (const char *) NULL);
dfcffada
AM
822 if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath))
823 {
824 free (tmppath);
ff7a0acf
AM
825 tmppath = concat (ld_sysroot, "/etc/ld.so.conf",
826 (const char *) NULL);
dfcffada
AM
827 gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
828 }
d3989512 829 free (tmppath);
dfcffada 830
d3989512
JJ
831 if (info.path)
832 {
833 char *d = gld${EMULATION_NAME}_add_sysroot (info.path);
834 free (info.path);
835 ld_so_conf = d;
04925e1e 836 }
b34976b6 837 initialized = TRUE;
04925e1e 838 }
49e56c49 839
04925e1e 840 if (ld_so_conf == NULL)
b34976b6 841 return FALSE;
252b5132 842
e56f61be 843
d5c8b1f8
AM
844 needed.by = l->by;
845 needed.name = l->name;
e56f61be 846 return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
252b5132
RH
847}
848
04925e1e 849EOF
9c8ebd6a
DJ
850 # Linux
851 ;;
04925e1e
AM
852 esac
853fi
92b93329 854fragment <<EOF
04925e1e 855
252b5132
RH
856/* See if an input file matches a DT_NEEDED entry by name. */
857
858static void
0c7a8e5a 859gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
252b5132 860{
e13629bc
AM
861 const char *soname;
862
863 /* Stop looking if we've found a loaded lib. */
864 if (global_found != NULL
865 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
866 & DYN_AS_NEEDED) == 0)
252b5132
RH
867 return;
868
e13629bc
AM
869 if (s->filename == NULL || s->the_bfd == NULL)
870 return;
871
872 /* Don't look for a second non-loaded as-needed lib. */
873 if (global_found != NULL
874 && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86
AM
875 return;
876
42627821 877 if (filename_cmp (s->filename, global_needed->name) == 0)
252b5132 878 {
e13629bc
AM
879 global_found = s;
880 return;
881 }
577a0623 882
66be1055 883 if (s->flags.search_dirs)
e13629bc
AM
884 {
885 const char *f = strrchr (s->filename, '/');
886 if (f != NULL
42627821 887 && filename_cmp (f + 1, global_needed->name) == 0)
577a0623 888 {
e13629bc 889 global_found = s;
577a0623
AM
890 return;
891 }
252b5132
RH
892 }
893
e13629bc
AM
894 soname = bfd_elf_get_dt_soname (s->the_bfd);
895 if (soname != NULL
42627821 896 && filename_cmp (soname, global_needed->name) == 0)
252b5132 897 {
e13629bc
AM
898 global_found = s;
899 return;
252b5132 900 }
252b5132
RH
901}
902
41392f03
AM
903EOF
904
905if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
92b93329 906fragment <<EOF
04925e1e 907
24382dca 908static bfd_size_type
677e5a92 909id_note_section_size (bfd *abfd ATTRIBUTE_UNUSED)
24382dca 910{
30e8ee25 911 const char *style = emit_note_gnu_build_id;
24382dca 912 bfd_size_type size;
61e2488c 913 bfd_size_type build_id_size;
24382dca 914
24382dca
RM
915 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
916 size = (size + 3) & -(bfd_size_type) 4;
917
61e2488c
JT
918 build_id_size = compute_build_id_size (style);
919 if (build_id_size)
920 size += build_id_size;
24382dca
RM
921 else
922 size = 0;
923
924 return size;
925}
926
24382dca 927static bfd_boolean
30e8ee25 928write_build_id (bfd *abfd)
24382dca
RM
929{
930 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
30e8ee25
AM
931 struct elf_obj_tdata *t = elf_tdata (abfd);
932 const char *style;
24382dca
RM
933 asection *asec;
934 Elf_Internal_Shdr *i_shdr;
935 unsigned char *contents, *id_bits;
936 bfd_size_type size;
30e8ee25 937 file_ptr position;
24382dca
RM
938 Elf_External_Note *e_note;
939
c0355132
AM
940 style = t->o->build_id.style;
941 asec = t->o->build_id.sec;
83e4970b 942 if (bfd_is_abs_section (asec->output_section))
24382dca 943 {
83e4970b
AM
944 einfo (_("%P: warning: .note.gnu.build-id section discarded,"
945 " --build-id ignored.\n"));
946 return TRUE;
24382dca
RM
947 }
948 i_shdr = &elf_section_data (asec->output_section)->this_hdr;
949
950 if (i_shdr->contents == NULL)
951 {
b2ff8454 952 if (asec->contents == NULL)
1e9cc1c2 953 asec->contents = (unsigned char *) xmalloc (asec->size);
b2ff8454 954 contents = asec->contents;
24382dca 955 }
b2ff8454
RM
956 else
957 contents = i_shdr->contents + asec->output_offset;
24382dca 958
1e9cc1c2 959 e_note = (Elf_External_Note *) contents;
24382dca
RM
960 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
961 size = (size + 3) & -(bfd_size_type) 4;
962 id_bits = contents + size;
963 size = asec->size - size;
964
965 bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz);
966 bfd_h_put_32 (abfd, size, &e_note->descsz);
967 bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type);
968 memcpy (e_note->name, "GNU", sizeof "GNU");
969
61e2488c 970 generate_build_id (abfd, style, bed->s->checksum_contents, id_bits, size);
24382dca 971
30e8ee25 972 position = i_shdr->sh_offset + asec->output_offset;
b2ff8454 973 size = asec->size;
30e8ee25 974 return (bfd_seek (abfd, position, SEEK_SET) == 0
b2ff8454 975 && bfd_bwrite (contents, size, abfd) == size);
24382dca
RM
976}
977
30e8ee25
AM
978/* Make .note.gnu.build-id section, and set up elf_tdata->build_id. */
979
980static bfd_boolean
981setup_build_id (bfd *ibfd)
982{
983 asection *s;
984 bfd_size_type size;
985 flagword flags;
986
987 size = id_note_section_size (ibfd);
988 if (size == 0)
989 {
990 einfo ("%P: warning: unrecognized --build-id style ignored.\n");
991 return FALSE;
992 }
993
994 flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
995 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
996 s = bfd_make_section_with_flags (ibfd, ".note.gnu.build-id", flags);
997 if (s != NULL && bfd_set_section_alignment (ibfd, s, 2))
998 {
999 struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
c0355132
AM
1000 t->o->build_id.after_write_object_contents = &write_build_id;
1001 t->o->build_id.style = emit_note_gnu_build_id;
1002 t->o->build_id.sec = s;
1003 elf_section_type (s) = SHT_NOTE;
1004 s->size = size;
1005 return TRUE;
30e8ee25
AM
1006 }
1007
1008 einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
1009 " --build-id ignored.\n");
1010 return FALSE;
1011}
24382dca 1012
04925e1e 1013/* This is called after all the input files have been opened. */
252b5132
RH
1014
1015static void
0c7a8e5a 1016gld${EMULATION_NAME}_after_open (void)
252b5132 1017{
04925e1e 1018 struct bfd_link_needed_list *needed, *l;
d10e7fcc
AM
1019 struct elf_link_hash_table *htab;
1020
5c3049d2
AM
1021 after_open_default ();
1022
d10e7fcc
AM
1023 htab = elf_hash_table (&link_info);
1024 if (!is_elf_hash_table (htab))
1025 return;
252b5132 1026
30e8ee25 1027 if (emit_note_gnu_build_id != NULL)
c0065db7
RM
1028 {
1029 bfd *abfd;
c0065db7 1030
a654efd6
L
1031 /* Find an ELF input. */
1032 for (abfd = link_info.input_bfds;
c72f2fb2 1033 abfd != (bfd *) NULL; abfd = abfd->link.next)
ca0694ad
AM
1034 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
1035 && bfd_count_sections (abfd) != 0)
a654efd6 1036 break;
c0065db7 1037
30e8ee25
AM
1038 /* PR 10555: If there are no ELF input files do not try to
1039 create a .note.gnu-build-id section. */
1040 if (abfd == NULL
1041 || !setup_build_id (abfd))
c0065db7 1042 {
30e8ee25
AM
1043 free ((char *) emit_note_gnu_build_id);
1044 emit_note_gnu_build_id = NULL;
c0065db7
RM
1045 }
1046 }
1047
0e1862bb 1048 if (bfd_link_relocatable (&link_info))
76f0cad6
NC
1049 {
1050 if (link_info.execstack == ! link_info.noexecstack)
1051 /* PR ld/16744: If "-z [no]execstack" has been specified on the
1052 command line and we are perfoming a relocatable link then no
1053 PT_GNU_STACK segment will be created and so the
1054 linkinfo.[no]execstack values set in _handle_option() will have no
1055 effect. Instead we create a .note.GNU-stack section in much the
1056 same way as the assembler does with its --[no]execstack option. */
1057 (void) bfd_make_section_with_flags (link_info.input_bfds,
1058 ".note.GNU-stack",
1059 SEC_READONLY | (link_info.execstack ? SEC_CODE : 0));
1060
1061 return;
1062 }
d10e7fcc 1063
2f0c68f2 1064 if (!link_info.traditional_format)
eb3d5f3b 1065 {
a654efd6
L
1066 bfd *abfd, *elfbfd = NULL;
1067 bfd_boolean warn_eh_frame = FALSE;
d10e7fcc 1068 asection *s;
2f0c68f2 1069 int seen_type = 0;
eb3d5f3b 1070
c72f2fb2 1071 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next)
eb3d5f3b 1072 {
2f0c68f2
CM
1073 int type = 0;
1074 for (s = abfd->sections; s && type < COMPACT_EH_HDR; s = s->next)
4440bb77 1075 {
2f0c68f2
CM
1076 const char *name = bfd_get_section_name (abfd, s);
1077
1078 if (bfd_is_abs_section (s->output_section))
1079 continue;
1080 if (CONST_STRNEQ (name, ".eh_frame_entry"))
1081 type = COMPACT_EH_HDR;
1082 else if (strcmp (name, ".eh_frame") == 0 && s->size > 8)
1083 type = DWARF2_EH_HDR;
4440bb77 1084 }
2f0c68f2
CM
1085
1086 if (type != 0)
1087 {
1088 if (seen_type == 0)
1089 {
1090 seen_type = type;
1091 }
1092 else if (seen_type != type)
1093 {
1094 einfo (_("%P%F: compact frame descriptions incompatible with"
1095 " DWARF2 .eh_frame from %B\n"),
1096 type == DWARF2_EH_HDR ? abfd : elfbfd);
1097 break;
1098 }
1099
1100 if (!elfbfd
1101 && (type == COMPACT_EH_HDR || link_info.eh_frame_hdr_type != 0))
1102 {
1103 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1104 elfbfd = abfd;
1105
1106 warn_eh_frame = TRUE;
1107 }
1108 }
1109
1110 if (seen_type == COMPACT_EH_HDR)
1111 link_info.eh_frame_hdr_type = COMPACT_EH_HDR;
1112
1113 if (bfd_count_sections (abfd) == 0)
1114 continue;
d10e7fcc 1115 }
a654efd6 1116 if (elfbfd)
d10e7fcc
AM
1117 {
1118 const struct elf_backend_data *bed;
1119
a654efd6
L
1120 bed = get_elf_backend_data (elfbfd);
1121 s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr",
1122 bed->dynamic_sec_flags
1123 | SEC_READONLY);
d10e7fcc 1124 if (s != NULL
a654efd6
L
1125 && bfd_set_section_alignment (elfbfd, s, 2))
1126 {
1127 htab->eh_info.hdr_sec = s;
1128 warn_eh_frame = FALSE;
1129 }
eb3d5f3b 1130 }
a654efd6
L
1131 if (warn_eh_frame)
1132 einfo ("%P: warning: Cannot create .eh_frame_hdr section,"
1133 " --eh-frame-hdr ignored.\n");
eb3d5f3b
JB
1134 }
1135
04925e1e
AM
1136 /* Get the list of files which appear in DT_NEEDED entries in
1137 dynamic objects included in the link (often there will be none).
1138 For each such file, we want to track down the corresponding
1139 library, and include the symbol table in the link. This is what
1140 the runtime dynamic linker will do. Tracking the files down here
1141 permits one dynamic object to include another without requiring
1142 special action by the person doing the link. Note that the
1143 needed list can actually grow while we are stepping through this
1144 loop. */
f13a99db 1145 needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info);
04925e1e 1146 for (l = needed; l != NULL; l = l->next)
252b5132 1147 {
04925e1e 1148 struct bfd_link_needed_list *ll;
e56f61be 1149 struct dt_needed n, nn;
04925e1e 1150 int force;
252b5132 1151
7e9f0867 1152 /* If the lib that needs this one was --as-needed and wasn't
4706eab9 1153 found to be needed, then this lib isn't needed either. */
7e9f0867 1154 if (l->by != NULL
4706eab9
AM
1155 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0)
1156 continue;
1157
1158 /* Skip the lib if --no-copy-dt-needed-entries and
1159 --allow-shlib-undefined is in effect. */
1160 if (l->by != NULL
1161 && link_info.unresolved_syms_in_shared_libs == RM_IGNORE
1162 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_NO_ADD_NEEDED) != 0)
7e9f0867
AM
1163 continue;
1164
04925e1e
AM
1165 /* If we've already seen this file, skip it. */
1166 for (ll = needed; ll != l; ll = ll->next)
7e9f0867
AM
1167 if ((ll->by == NULL
1168 || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
1169 && strcmp (ll->name, l->name) == 0)
04925e1e
AM
1170 break;
1171 if (ll != l)
1172 continue;
252b5132 1173
04925e1e
AM
1174 /* See if this file was included in the link explicitly. */
1175 global_needed = l;
e13629bc 1176 global_found = NULL;
04925e1e 1177 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
e13629bc
AM
1178 if (global_found != NULL
1179 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
1180 & DYN_AS_NEEDED) == 0)
04925e1e 1181 continue;
252b5132 1182
e56f61be
L
1183 n.by = l->by;
1184 n.name = l->name;
1185 nn.by = l->by;
cd6f1cf3 1186 if (verbose)
ec4eb78a
L
1187 info_msg (_("%s needed by %B\n"), l->name, l->by);
1188
e13629bc
AM
1189 /* As-needed libs specified on the command line (or linker script)
1190 take priority over libs found in search dirs. */
1191 if (global_found != NULL)
1192 {
1193 nn.name = global_found->filename;
1194 if (gld${EMULATION_NAME}_try_needed (&nn, TRUE))
1195 continue;
1196 }
1197
04925e1e
AM
1198 /* We need to find this file and include the symbol table. We
1199 want to search for the file in the same way that the dynamic
1200 linker will search. That means that we want to use
1201 rpath_link, rpath, then the environment variable
ec4eb78a
L
1202 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
1203 entries (native only), then the linker script LIB_SEARCH_DIRS.
1204 We do not search using the -L arguments.
252b5132 1205
04925e1e
AM
1206 We search twice. The first time, we skip objects which may
1207 introduce version mismatches. The second time, we force
1208 their use. See gld${EMULATION_NAME}_vercheck comment. */
1209 for (force = 0; force < 2; force++)
1210 {
04925e1e
AM
1211 size_t len;
1212 search_dirs_type *search;
6dd8c765 1213EOF
ff925e69 1214if [ "x${NATIVE}" = xyes ] ; then
92b93329 1215fragment <<EOF
dcb0bd0e 1216 const char *lib_path;
ff925e69
KK
1217EOF
1218fi
1219if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1220fragment <<EOF
6dd8c765
L
1221 struct bfd_link_needed_list *rp;
1222 int found;
1223EOF
6dd8c765 1224fi
92b93329 1225fragment <<EOF
252b5132 1226
04925e1e 1227 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
e56f61be 1228 &n, force))
04925e1e 1229 break;
dcb0bd0e 1230EOF
9c8ebd6a 1231if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1232fragment <<EOF
04925e1e 1233 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
e56f61be 1234 &n, force))
04925e1e 1235 break;
9c8ebd6a
DJ
1236EOF
1237fi
1238if [ "x${NATIVE}" = xyes ] ; then
92b93329 1239fragment <<EOF
04925e1e
AM
1240 if (command_line.rpath_link == NULL
1241 && command_line.rpath == NULL)
1242 {
1243 lib_path = (const char *) getenv ("LD_RUN_PATH");
e56f61be 1244 if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
04925e1e
AM
1245 force))
1246 break;
1247 }
04925e1e 1248 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
e56f61be 1249 if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force))
04925e1e 1250 break;
9c8ebd6a
DJ
1251EOF
1252fi
1253if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1254fragment <<EOF
ec4eb78a 1255 found = 0;
f13a99db 1256 rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info);
6dd8c765 1257 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a 1258 {
9c8ebd6a 1259 char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name);
ec4eb78a 1260 found = (rp->by == l->by
9c8ebd6a 1261 && gld${EMULATION_NAME}_search_needed (tmpname,
e56f61be 1262 &n,
ec4eb78a 1263 force));
9c8ebd6a 1264 free (tmpname);
ec4eb78a
L
1265 }
1266 if (found)
1267 break;
1268
04925e1e 1269EOF
04925e1e 1270fi
c1446dba
L
1271if [ "x${USE_LIBPATH}" = xyes ] ; then
1272 case ${target} in
ebe1fac1 1273 *-*-freebsd* | *-*-dragonfly*)
92b93329 1274 fragment <<EOF
d5c8b1f8 1275 if (gld${EMULATION_NAME}_check_ld_elf_hints (l, force))
ebe1fac1
NC
1276 break;
1277EOF
1278 # FreeBSD
1279 ;;
1280
a5244b7e 1281 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 1282 fragment <<EOF
d5c8b1f8 1283 if (gld${EMULATION_NAME}_check_ld_so_conf (l, force))
c1446dba
L
1284 break;
1285
1286EOF
eeaa4577 1287 # Linux
c1446dba
L
1288 ;;
1289 esac
1290fi
92b93329 1291fragment <<EOF
04925e1e
AM
1292 len = strlen (l->name);
1293 for (search = search_head; search != NULL; search = search->next)
1294 {
1295 char *filename;
252b5132 1296
04925e1e
AM
1297 if (search->cmdline)
1298 continue;
1299 filename = (char *) xmalloc (strlen (search->name) + len + 2);
1300 sprintf (filename, "%s/%s", search->name, l->name);
e56f61be
L
1301 nn.name = filename;
1302 if (gld${EMULATION_NAME}_try_needed (&nn, force))
04925e1e
AM
1303 break;
1304 free (filename);
1305 }
1306 if (search != NULL)
1307 break;
1308EOF
92b93329 1309fragment <<EOF
04925e1e 1310 }
252b5132 1311
04925e1e
AM
1312 if (force < 2)
1313 continue;
252b5132 1314
e374f1d9 1315 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
04925e1e
AM
1316 l->name, l->by);
1317 }
2f0c68f2
CM
1318
1319 if (link_info.eh_frame_hdr_type == COMPACT_EH_HDR)
1320 if (bfd_elf_parse_eh_frame_entries (NULL, &link_info) == FALSE)
1321 einfo (_("%P%F: Failed to parse EH frame entries.\n"));
04925e1e 1322}
252b5132 1323
41392f03
AM
1324EOF
1325fi
1326
92b93329 1327fragment <<EOF
252b5132 1328
04925e1e 1329/* Look through an expression for an assignment statement. */
252b5132 1330
04925e1e 1331static void
0c7a8e5a 1332gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
04925e1e 1333{
4ea42fb7 1334 bfd_boolean provide = FALSE;
04925e1e
AM
1335
1336 switch (exp->type.node_class)
252b5132 1337 {
04925e1e 1338 case etree_provide:
bded3693 1339 case etree_provided:
4ea42fb7
AM
1340 provide = TRUE;
1341 /* Fall thru */
1342 case etree_assign:
04925e1e
AM
1343 /* We call record_link_assignment even if the symbol is defined.
1344 This is because if it is defined by a dynamic object, we
1345 actually want to use the value defined by the linker script,
1346 not the value from the dynamic object (because we are setting
1347 symbols like etext). If the symbol is defined by a regular
1348 object, then, as it happens, calling record_link_assignment
1349 will do no harm. */
04925e1e 1350 if (strcmp (exp->assign.dst, ".") != 0)
252b5132 1351 {
f13a99db
AM
1352 if (!bfd_elf_record_link_assignment (link_info.output_bfd,
1353 &link_info,
fe21a8fc
L
1354 exp->assign.dst, provide,
1355 exp->assign.hidden))
04925e1e
AM
1356 einfo ("%P%F: failed to record assignment to %s: %E\n",
1357 exp->assign.dst);
252b5132 1358 }
04925e1e
AM
1359 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
1360 break;
252b5132 1361
04925e1e
AM
1362 case etree_binary:
1363 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
1364 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
1365 break;
252b5132 1366
04925e1e
AM
1367 case etree_trinary:
1368 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
1369 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
1370 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
1371 break;
252b5132 1372
04925e1e
AM
1373 case etree_unary:
1374 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1375 break;
252b5132 1376
04925e1e
AM
1377 default:
1378 break;
252b5132
RH
1379 }
1380}
1381
04925e1e
AM
1382
1383/* This is called by the before_allocation routine via
1384 lang_for_each_statement. It locates any assignment statements, and
1385 tells the ELF backend about them, in case they are assignments to
1386 symbols which are referred to by dynamic objects. */
1387
1388static void
0c7a8e5a 1389gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
04925e1e
AM
1390{
1391 if (s->header.type == lang_assignment_statement_enum)
1392 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1393}
1394
41392f03
AM
1395EOF
1396
1397if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
1398 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
1399 ELF_INTERPRETER_SET_DEFAULT="
1400 if (sinterp != NULL)
1401 {
5718918d
AM
1402 sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
1403 sinterp->size = strlen ((char *) sinterp->contents) + 1;
57e6abd2
AO
1404 }
1405
1406"
1407 else
1408 ELF_INTERPRETER_SET_DEFAULT=
1409 fi
92b93329 1410fragment <<EOF
04925e1e 1411
7ee314fa 1412/* used by before_allocation and handle_option. */
4724d37e 1413static void
91d6fa6a 1414gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg)
7ee314fa
AM
1415{
1416 if (*to == NULL)
91d6fa6a 1417 *to = xstrdup (op_arg);
7ee314fa
AM
1418 else
1419 {
1420 size_t to_len = strlen (*to);
91d6fa6a 1421 size_t op_arg_len = strlen (op_arg);
7ee314fa
AM
1422 char *buf;
1423 char *cp = *to;
1424
1425 /* First see whether OPTARG is already in the path. */
1426 do
1427 {
91d6fa6a
NC
1428 if (strncmp (op_arg, cp, op_arg_len) == 0
1429 && (cp[op_arg_len] == 0
1430 || cp[op_arg_len] == config.rpath_separator))
7ee314fa
AM
1431 /* We found it. */
1432 break;
1433
1434 /* Not yet found. */
1435 cp = strchr (cp, config.rpath_separator);
1436 if (cp != NULL)
1437 ++cp;
1438 }
1439 while (cp != NULL);
1440
1441 if (cp == NULL)
1442 {
91d6fa6a 1443 buf = xmalloc (to_len + op_arg_len + 2);
7ee314fa 1444 sprintf (buf, "%s%c%s", *to,
91d6fa6a 1445 config.rpath_separator, op_arg);
7ee314fa
AM
1446 free (*to);
1447 *to = buf;
1448 }
1449 }
1450}
1451
b6518b38
NC
1452#if defined(__GNUC__) && GCC_VERSION < 4006
1453 /* Work around a GCC uninitialized warning bug fixed in GCC 4.6. */
1454static struct bfd_link_hash_entry ehdr_start_empty;
1455#endif
1456
252b5132
RH
1457/* This is called after the sections have been attached to output
1458 sections, but before any sizes or addresses have been set. */
1459
1460static void
0c7a8e5a 1461gld${EMULATION_NAME}_before_allocation (void)
252b5132
RH
1462{
1463 const char *rpath;
1464 asection *sinterp;
7ee314fa 1465 bfd *abfd;
4199e3b8 1466 struct elf_link_hash_entry *ehdr_start = NULL;
a0bde398
L
1467#if defined(__GNUC__) && GCC_VERSION < 4006
1468 /* Work around a GCC uninitialized warning bug fixed in GCC 4.6. */
b6518b38 1469 struct bfd_link_hash_entry ehdr_start_save = ehdr_start_empty;
a0bde398 1470#else
4a0bc59e 1471 struct bfd_link_hash_entry ehdr_start_save;
a0bde398 1472#endif
252b5132 1473
b4d040b1 1474 if (is_elf_hash_table (link_info.hash))
a5382c42
MR
1475 {
1476 _bfd_elf_tls_setup (link_info.output_bfd, &link_info);
e1918d23 1477
cde7cb01
MR
1478 /* Make __ehdr_start hidden if it has been referenced, to
1479 prevent the symbol from being dynamic. */
0e1862bb 1480 if (!bfd_link_relocatable (&link_info))
c2763e27
RM
1481 {
1482 struct elf_link_hash_entry *h
1483 = elf_link_hash_lookup (elf_hash_table (&link_info), "__ehdr_start",
1484 FALSE, FALSE, TRUE);
1485
1486 /* Only adjust the export class if the symbol was referenced
1487 and not defined, otherwise leave it alone. */
1488 if (h != NULL
1489 && (h->root.type == bfd_link_hash_new
1490 || h->root.type == bfd_link_hash_undefined
1491 || h->root.type == bfd_link_hash_undefweak
1492 || h->root.type == bfd_link_hash_common))
1493 {
1494 _bfd_elf_link_hash_hide_symbol (&link_info, h, TRUE);
1495 if (ELF_ST_VISIBILITY (h->other) != STV_INTERNAL)
1496 h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN;
4199e3b8
AM
1497 /* Don't leave the symbol undefined. Undefined hidden
1498 symbols typically won't have dynamic relocations, but
1499 we most likely will need dynamic relocations for
1500 __ehdr_start if we are building a PIE or shared
1501 library. */
1502 ehdr_start = h;
1503 ehdr_start_save = h->root;
1504 h->root.type = bfd_link_hash_defined;
1505 h->root.u.def.section = bfd_abs_section_ptr;
1506 h->root.u.def.value = 0;
c2763e27
RM
1507 }
1508 }
cde7cb01 1509
a5382c42
MR
1510 /* If we are going to make any variable assignments, we need to
1511 let the ELF backend know about them in case the variables are
1512 referred to by dynamic objects. */
1513 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
1514 }
252b5132
RH
1515
1516 /* Let the ELF backend work out the sizes of any sections required
1517 by dynamic linking. */
1518 rpath = command_line.rpath;
1519 if (rpath == NULL)
1520 rpath = (const char *) getenv ("LD_RUN_PATH");
7ee314fa 1521
c72f2fb2 1522 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next)
8dd881b6
L
1523 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1524 {
1525 const char *audit_libs = elf_dt_audit (abfd);
7ee314fa 1526
4724d37e 1527 /* If the input bfd contains an audit entry, we need to add it as
8dd881b6
L
1528 a dep audit entry. */
1529 if (audit_libs && *audit_libs != '\0')
1530 {
1531 char *cp = xstrdup (audit_libs);
1532 do
1533 {
1534 int more = 0;
1535 char *cp2 = strchr (cp, config.rpath_separator);
7ee314fa 1536
8dd881b6
L
1537 if (cp2)
1538 {
1539 *cp2 = '\0';
1540 more = 1;
1541 }
7ee314fa 1542
8dd881b6
L
1543 if (cp != NULL && *cp != '\0')
1544 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp);
1545
1546 cp = more ? ++cp2 : NULL;
1547 }
1548 while (cp != NULL);
1549 }
1550 }
7ee314fa 1551
5a580b3a 1552 if (! (bfd_elf_size_dynamic_sections
f13a99db 1553 (link_info.output_bfd, command_line.soname, rpath,
7ee314fa 1554 command_line.filter_shlib, audit, depaudit,
252b5132 1555 (const char * const *) command_line.auxiliary_filters,
fd91d419 1556 &link_info, &sinterp)))
252b5132 1557 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
8423293d 1558
57e6abd2 1559${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
1560 /* Let the user override the dynamic linker we are using. */
1561 if (command_line.interpreter != NULL
1562 && sinterp != NULL)
1563 {
1564 sinterp->contents = (bfd_byte *) command_line.interpreter;
eea6121a 1565 sinterp->size = strlen (command_line.interpreter) + 1;
252b5132
RH
1566 }
1567
1568 /* Look for any sections named .gnu.warning. As a GNU extensions,
1569 we treat such sections as containing warning messages. We print
1570 out the warning message, and then zero out the section size so
1571 that it does not get copied into the output file. */
1572
1573 {
1574 LANG_FOR_EACH_INPUT_STATEMENT (is)
1575 {
1576 asection *s;
1577 bfd_size_type sz;
1578 char *msg;
b34976b6 1579 bfd_boolean ret;
252b5132 1580
66be1055 1581 if (is->flags.just_syms)
252b5132
RH
1582 continue;
1583
1584 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
1585 if (s == NULL)
1586 continue;
1587
eea6121a 1588 sz = s->size;
1e9cc1c2 1589 msg = (char *) xmalloc ((size_t) (sz + 1));
bc251d50 1590 if (! bfd_get_section_contents (is->the_bfd, s, msg,
8c675694 1591 (file_ptr) 0, sz))
252b5132
RH
1592 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
1593 is->the_bfd);
bc251d50 1594 msg[sz] = '\0';
252b5132
RH
1595 ret = link_info.callbacks->warning (&link_info, msg,
1596 (const char *) NULL,
1597 is->the_bfd, (asection *) NULL,
1598 (bfd_vma) 0);
1599 ASSERT (ret);
1600 free (msg);
1601
9e3be61d
AM
1602 /* Clobber the section size, so that we don't waste space
1603 copying the warning into the output file. If we've already
1604 sized the output section, adjust its size. The adjustment
1605 is on rawsize because targets that size sections early will
1606 have called lang_reset_memory_regions after sizing. */
1607 if (s->output_section != NULL
1608 && s->output_section->rawsize >= s->size)
1609 s->output_section->rawsize -= s->size;
1610
eea6121a 1611 s->size = 0;
11d2f718 1612
9e3be61d
AM
1613 /* Also set SEC_EXCLUDE, so that local symbols defined in the
1614 warning section don't get copied to the output. */
a14a5de3 1615 s->flags |= SEC_EXCLUDE | SEC_KEEP;
252b5132
RH
1616 }
1617 }
8423293d 1618
1e035701 1619 before_allocation_default ();
8423293d 1620
f13a99db 1621 if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info))
8423293d 1622 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
4199e3b8
AM
1623
1624 if (ehdr_start != NULL)
1625 {
1626 /* If we twiddled __ehdr_start to defined earlier, put it back
1627 as it was. */
1628 ehdr_start->root.type = ehdr_start_save.type;
1629 ehdr_start->root.u = ehdr_start_save.u;
1630 }
252b5132
RH
1631}
1632
41392f03
AM
1633EOF
1634fi
1635
1636if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
92b93329 1637fragment <<EOF
252b5132 1638
04925e1e
AM
1639/* Try to open a dynamic archive. This is where we know that ELF
1640 dynamic libraries have an extension of .so (or .sl on oddball systems
1641 like hpux). */
1642
b34976b6 1643static bfd_boolean
0c7a8e5a
AM
1644gld${EMULATION_NAME}_open_dynamic_archive
1645 (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
252b5132 1646{
04925e1e
AM
1647 const char *filename;
1648 char *string;
d4ae5fb0
AM
1649 size_t len;
1650 bfd_boolean opened = FALSE;
252b5132 1651
66be1055 1652 if (! entry->flags.maybe_archive)
b34976b6 1653 return FALSE;
252b5132 1654
04925e1e 1655 filename = entry->filename;
d4ae5fb0
AM
1656 len = strlen (search->name) + strlen (filename);
1657 if (entry->flags.full_name_provided)
1658 {
1659 len += sizeof "/";
1660 string = (char *) xmalloc (len);
1661 sprintf (string, "%s/%s", search->name, filename);
1662 }
1663 else
1664 {
1665 size_t xlen = 0;
252b5132 1666
d4ae5fb0 1667 len += strlen (arch) + sizeof "/lib.so";
04925e1e 1668#ifdef EXTRA_SHLIB_EXTENSION
d4ae5fb0
AM
1669 xlen = (strlen (EXTRA_SHLIB_EXTENSION) > 3
1670 ? strlen (EXTRA_SHLIB_EXTENSION) - 3
1671 : 0);
04925e1e 1672#endif
d4ae5fb0
AM
1673 string = (char *) xmalloc (len + xlen);
1674 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
04925e1e 1675#ifdef EXTRA_SHLIB_EXTENSION
d4ae5fb0
AM
1676 /* Try the .so extension first. If that fails build a new filename
1677 using EXTRA_SHLIB_EXTENSION. */
1678 opened = ldfile_try_open_bfd (string, entry);
1679 if (!opened)
1680 strcpy (string + len - 4, EXTRA_SHLIB_EXTENSION);
04925e1e 1681#endif
d4ae5fb0 1682 }
04925e1e 1683
d4ae5fb0 1684 if (!opened && !ldfile_try_open_bfd (string, entry))
252b5132 1685 {
04925e1e 1686 free (string);
b34976b6 1687 return FALSE;
04925e1e 1688 }
252b5132 1689
04925e1e 1690 entry->filename = string;
252b5132 1691
04925e1e
AM
1692 /* We have found a dynamic object to include in the link. The ELF
1693 backend linker will create a DT_NEEDED entry in the .dynamic
1694 section naming this file. If this file includes a DT_SONAME
1695 entry, it will be used. Otherwise, the ELF linker will just use
1696 the name of the file. For an archive found by searching, like
1697 this one, the DT_NEEDED entry should consist of just the name of
1698 the file, without the path information used to find it. Note
1699 that we only need to do this if we have a dynamic object; an
1700 archive will never be referenced by a DT_NEEDED entry.
252b5132 1701
04925e1e
AM
1702 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
1703 very pretty. I haven't been able to think of anything that is
1704 pretty, though. */
1705 if (bfd_check_format (entry->the_bfd, bfd_object)
1706 && (entry->the_bfd->flags & DYNAMIC) != 0)
1707 {
66be1055 1708 ASSERT (entry->flags.maybe_archive && entry->flags.search_dirs);
252b5132 1709
04925e1e 1710 /* Rather than duplicating the logic above. Just use the
1c9acd94 1711 filename we recorded earlier. */
04925e1e 1712
d4ae5fb0
AM
1713 if (!entry->flags.full_name_provided)
1714 filename = lbasename (entry->filename);
1c9acd94 1715 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
1716 }
1717
b34976b6 1718 return TRUE;
04925e1e
AM
1719}
1720
41392f03
AM
1721EOF
1722fi
cde43e70
AM
1723
1724if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
92b93329 1725fragment <<EOF
41392f03 1726
afd7a018 1727/* A variant of lang_output_section_find used by place_orphan. */
04925e1e 1728
04925e1e 1729static lang_output_section_statement_type *
2a36a117 1730output_rel_find (asection *sec, int isdyn)
04925e1e 1731{
04925e1e 1732 lang_output_section_statement_type *lookup;
ba493122 1733 lang_output_section_statement_type *last = NULL;
2a36a117 1734 lang_output_section_statement_type *last_alloc = NULL;
48f2ff54 1735 lang_output_section_statement_type *last_ro_alloc = NULL;
ba493122
AM
1736 lang_output_section_statement_type *last_rel = NULL;
1737 lang_output_section_statement_type *last_rel_alloc = NULL;
24cdb50a 1738 int rela = sec->name[4] == 'a';
04925e1e 1739
afd7a018
AM
1740 for (lookup = &lang_output_section_statement.head->output_section_statement;
1741 lookup != NULL;
1742 lookup = lookup->next)
04925e1e 1743 {
66c103b7 1744 if (lookup->constraint >= 0
0112cd26 1745 && CONST_STRNEQ (lookup->name, ".rel"))
04925e1e 1746 {
24cdb50a 1747 int lookrela = lookup->name[4] == 'a';
ba493122 1748
2a36a117
AM
1749 /* .rel.dyn must come before all other reloc sections, to suit
1750 GNU ld.so. */
1751 if (isdyn)
1752 break;
1753
1754 /* Don't place after .rel.plt as doing so results in wrong
1755 dynamic tags. */
1756 if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
ba493122 1757 break;
2a36a117
AM
1758
1759 if (rela == lookrela || last_rel == NULL)
24cdb50a 1760 last_rel = lookup;
2a36a117
AM
1761 if ((rela == lookrela || last_rel_alloc == NULL)
1762 && lookup->bfd_section != NULL
ba493122
AM
1763 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1764 last_rel_alloc = lookup;
04925e1e 1765 }
2a36a117
AM
1766
1767 last = lookup;
1768 if (lookup->bfd_section != NULL
1769 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
48f2ff54
AM
1770 {
1771 last_alloc = lookup;
1772 if ((lookup->bfd_section->flags & SEC_READONLY) != 0)
1773 last_ro_alloc = lookup;
1774 }
252b5132 1775 }
ba493122
AM
1776
1777 if (last_rel_alloc)
1778 return last_rel_alloc;
1779
1780 if (last_rel)
1781 return last_rel;
1782
48f2ff54
AM
1783 if (last_ro_alloc)
1784 return last_ro_alloc;
1785
2a36a117
AM
1786 if (last_alloc)
1787 return last_alloc;
1788
ba493122 1789 return last;
252b5132
RH
1790}
1791
1792/* Place an orphan section. We use this to put random SHF_ALLOC
1793 sections in the right segment. */
1794
c2edb4b8 1795static lang_output_section_statement_type *
8a99a385
AM
1796gld${EMULATION_NAME}_place_orphan (asection *s,
1797 const char *secname,
1798 int constraint)
252b5132 1799{
afd7a018
AM
1800 static struct orphan_save hold[] =
1801 {
1802 { ".text",
1803 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1804 0, 0, 0, 0 },
1805 { ".rodata",
1806 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1807 0, 0, 0, 0 },
d85e71fe
L
1808 { ".tdata",
1809 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_THREAD_LOCAL,
1810 0, 0, 0, 0 },
afd7a018
AM
1811 { ".data",
1812 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1813 0, 0, 0, 0 },
1814 { ".bss",
1815 SEC_ALLOC,
1816 0, 0, 0, 0 },
1817 { 0,
1818 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1819 0, 0, 0, 0 },
1820 { ".interp",
1821 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1822 0, 0, 0, 0 },
1823 { ".sdata",
1824 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
07890c07 1825 0, 0, 0, 0 },
175b7cd4 1826 { ".comment",
07890c07
AM
1827 SEC_HAS_CONTENTS,
1828 0, 0, 0, 0 },
afd7a018
AM
1829 };
1830 enum orphan_save_index
1831 {
1832 orphan_text = 0,
1833 orphan_rodata,
d85e71fe 1834 orphan_tdata,
afd7a018
AM
1835 orphan_data,
1836 orphan_bss,
1837 orphan_rel,
1838 orphan_interp,
07890c07
AM
1839 orphan_sdata,
1840 orphan_nonalloc
afd7a018
AM
1841 };
1842 static int orphan_init_done = 0;
6a345e87 1843 struct orphan_save *place;
afd7a018 1844 lang_output_section_statement_type *after;
252b5132 1845 lang_output_section_statement_type *os;
b5f14a6d 1846 lang_output_section_statement_type *match_by_name = NULL;
24cdb50a 1847 int isdyn = 0;
ecca9871
L
1848 int iself = s->owner->xvec->flavour == bfd_target_elf_flavour;
1849 unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL;
252b5132 1850
0e1862bb 1851 if (!bfd_link_relocatable (&link_info)
24cdb50a 1852 && link_info.combreloc
ecca9871 1853 && (s->flags & SEC_ALLOC))
24cdb50a 1854 {
ecca9871
L
1855 if (iself)
1856 switch (sh_type)
1857 {
1858 case SHT_RELA:
1859 secname = ".rela.dyn";
1860 isdyn = 1;
1861 break;
1862 case SHT_REL:
1863 secname = ".rel.dyn";
1864 isdyn = 1;
1865 break;
1866 default:
1867 break;
1868 }
0112cd26 1869 else if (CONST_STRNEQ (secname, ".rel"))
ecca9871
L
1870 {
1871 secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn";
1872 isdyn = 1;
1873 }
24cdb50a 1874 }
aea4bd9d 1875
bcacc0f5 1876 /* Look through the script to see where to place this section. */
d127ecce
AM
1877 if (constraint == 0)
1878 for (os = lang_output_section_find (secname);
1879 os != NULL;
1880 os = next_matching_output_section_statement (os, 0))
1881 {
1882 /* If we don't match an existing output section, tell
1883 lang_insert_orphan to create a new output section. */
1884 constraint = SPECIAL;
1885
1886 if (os->bfd_section != NULL
1887 && (os->bfd_section->flags == 0
1888 || (_bfd_elf_match_sections_by_type (link_info.output_bfd,
1889 os->bfd_section,
1890 s->owner, s)
1891 && ((s->flags ^ os->bfd_section->flags)
1892 & (SEC_LOAD | SEC_ALLOC)) == 0)))
1893 {
1894 /* We already have an output section statement with this
1895 name, and its bfd section has compatible flags.
1896 If the section already exists but does not have any flags
1897 set, then it has been created by the linker, probably as a
1898 result of a --section-start command line switch. */
b9c361e0 1899 lang_add_section (&os->children, s, NULL, os);
d127ecce
AM
1900 return os;
1901 }
b5f14a6d
DD
1902
1903 /* Save unused output sections in case we can match them
1904 against orphans later. */
1905 if (os->bfd_section == NULL)
1906 match_by_name = os;
d127ecce 1907 }
252b5132 1908
b5f14a6d
DD
1909 /* If we didn't match an active output section, see if we matched an
1910 unused one and use that. */
1911 if (match_by_name)
1912 {
b9c361e0 1913 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
b5f14a6d
DD
1914 return match_by_name;
1915 }
1916
afd7a018
AM
1917 if (!orphan_init_done)
1918 {
1919 struct orphan_save *ho;
07890c07 1920
afd7a018
AM
1921 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1922 if (ho->name != NULL)
1923 {
1924 ho->os = lang_output_section_find (ho->name);
1925 if (ho->os != NULL && ho->os->flags == 0)
1926 ho->os->flags = ho->flags;
1927 }
1928 orphan_init_done = 1;
1929 }
252b5132
RH
1930
1931 /* If this is a final link, then always put .gnu.warning.SYMBOL
1932 sections into the .text section to get them out of the way. */
0e1862bb 1933 if (bfd_link_executable (&link_info)
bcacc0f5 1934 && CONST_STRNEQ (s->name, ".gnu.warning.")
afd7a018 1935 && hold[orphan_text].os != NULL)
252b5132 1936 {
c2edb4b8 1937 os = hold[orphan_text].os;
b9c361e0 1938 lang_add_section (&os->children, s, NULL, os);
c2edb4b8 1939 return os;
252b5132
RH
1940 }
1941
1942 /* Decide which segment the section should go in based on the
1943 section name and section flags. We put loadable .note sections
1944 right after the .interp section, so that the PT_NOTE segment is
1945 stored right after the program headers where the OS can read it
1946 in the first page. */
aea4bd9d 1947
71bfc0ae 1948 place = NULL;
07890c07
AM
1949 if ((s->flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0)
1950 place = &hold[orphan_nonalloc];
1951 else if ((s->flags & SEC_ALLOC) == 0)
71bfc0ae 1952 ;
252b5132 1953 else if ((s->flags & SEC_LOAD) != 0
ecca9871 1954 && ((iself && sh_type == SHT_NOTE)
0112cd26 1955 || (!iself && CONST_STRNEQ (secname, ".note"))))
afd7a018 1956 place = &hold[orphan_interp];
04c932a2 1957 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0)
afd7a018
AM
1958 place = &hold[orphan_bss];
1959 else if ((s->flags & SEC_SMALL_DATA) != 0)
1960 place = &hold[orphan_sdata];
d85e71fe
L
1961 else if ((s->flags & SEC_THREAD_LOCAL) != 0)
1962 place = &hold[orphan_tdata];
afd7a018
AM
1963 else if ((s->flags & SEC_READONLY) == 0)
1964 place = &hold[orphan_data];
ecca9871 1965 else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL))
0112cd26 1966 || (!iself && CONST_STRNEQ (secname, ".rel")))
afd7a018
AM
1967 && (s->flags & SEC_LOAD) != 0)
1968 place = &hold[orphan_rel];
1969 else if ((s->flags & SEC_CODE) == 0)
1970 place = &hold[orphan_rodata];
1971 else
1972 place = &hold[orphan_text];
71bfc0ae 1973
afd7a018 1974 after = NULL;
5ba47421 1975 if (place != NULL)
252b5132 1976 {
afd7a018 1977 if (place->os == NULL)
5ba47421 1978 {
afd7a018
AM
1979 if (place->name != NULL)
1980 place->os = lang_output_section_find (place->name);
1981 else
1982 place->os = output_rel_find (s, isdyn);
5ba47421 1983 }
afd7a018
AM
1984 after = place->os;
1985 if (after == NULL)
390fbbf1
AM
1986 after = lang_output_section_find_by_flags
1987 (s, &place->os, _bfd_elf_match_sections_by_type);
afd7a018
AM
1988 if (after == NULL)
1989 /* *ABS* is always the first output section statement. */
1990 after = &lang_output_section_statement.head->output_section_statement;
252b5132
RH
1991 }
1992
c2edb4b8 1993 return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL);
252b5132 1994}
c56feb2b
AM
1995EOF
1996fi
1997
eaeb0a9d 1998if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then
92b93329 1999fragment <<EOF
252b5132 2000
deb04cdb 2001static void
eaeb0a9d 2002gld${EMULATION_NAME}_after_allocation (void)
deb04cdb 2003{
75938853
AM
2004 int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info);
2005
2006 if (need_layout < 0)
2007 einfo ("%X%P: .eh_frame/.stab edit: %E\n");
2008 else
2009 gld${EMULATION_NAME}_map_segments (need_layout);
73d074b4 2010}
41392f03
AM
2011EOF
2012fi
2013
2014if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
92b93329 2015fragment <<EOF
252b5132
RH
2016
2017static char *
0c7a8e5a 2018gld${EMULATION_NAME}_get_script (int *isfile)
252b5132
RH
2019EOF
2020
7225345d 2021if test x"$COMPILE_IN" = xyes
252b5132
RH
2022then
2023# Scripts compiled in.
2024
2025# sed commands to quote an ld script as a C string.
597e2591 2026sc="-f stringify.sed"
252b5132 2027
92b93329 2028fragment <<EOF
60bcf0fa 2029{
252b5132
RH
2030 *isfile = 0;
2031
0e1862bb 2032 if (bfd_link_relocatable (&link_info) && config.build_constructors)
597e2591 2033 return
252b5132 2034EOF
afd7a018 2035sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
0e1862bb 2036echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018
AM
2037sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2038echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2039sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
61585df2 2040if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
afd7a018
AM
2041echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2042sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 2043fi
36af4a4e
JJ
2044if test -n "$GENERATE_PIE_SCRIPT" ; then
2045if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
0e1862bb
L
2046echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2047echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
2048echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2049echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2050sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
0e1862bb
L
2051echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2052echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2053sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
36af4a4e 2054fi
0e1862bb 2055echo ' ; else if (bfd_link_pie (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018 2056sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
36af4a4e 2057fi
252b5132 2058if test -n "$GENERATE_SHLIB_SCRIPT" ; then
82434356 2059if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
0e1862bb 2060echo ' ; else if (bfd_link_dll (&link_info) && link_info.combreloc' >> e${EMULATION_NAME}.c
8c37241b 2061echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2062echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2063sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
0e1862bb 2064echo ' ; else if (bfd_link_dll (&link_info) && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2065sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
82434356 2066fi
0e1862bb 2067echo ' ; else if (bfd_link_dll (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018 2068sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 2069fi
82434356 2070if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
8c37241b 2071echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2072echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018
AM
2073sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
2074echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
2075sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
82434356 2076fi
afd7a018
AM
2077echo ' ; else return' >> e${EMULATION_NAME}.c
2078sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2079echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
2080
2081else
2082# Scripts read from the filesystem.
2083
92b93329 2084fragment <<EOF
60bcf0fa 2085{
252b5132
RH
2086 *isfile = 1;
2087
0e1862bb 2088 if (bfd_link_relocatable (&link_info) && config.build_constructors)
252b5132 2089 return "ldscripts/${EMULATION_NAME}.xu";
0e1862bb 2090 else if (bfd_link_relocatable (&link_info))
252b5132
RH
2091 return "ldscripts/${EMULATION_NAME}.xr";
2092 else if (!config.text_read_only)
2093 return "ldscripts/${EMULATION_NAME}.xbn";
a060b769
AM
2094EOF
2095if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
2096else
92b93329 2097fragment <<EOF
252b5132
RH
2098 else if (!config.magic_demand_paged)
2099 return "ldscripts/${EMULATION_NAME}.xn";
a060b769
AM
2100EOF
2101fi
36af4a4e
JJ
2102if test -n "$GENERATE_PIE_SCRIPT" ; then
2103if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2104fragment <<EOF
0e1862bb
L
2105 else if (bfd_link_pie (&link_info)
2106 && link_info.combreloc
2107 && link_info.relro
2108 && (link_info.flags & DF_BIND_NOW))
8c37241b 2109 return "ldscripts/${EMULATION_NAME}.xdw";
0e1862bb
L
2110 else if (bfd_link_pie (&link_info)
2111 && link_info.combreloc)
36af4a4e
JJ
2112 return "ldscripts/${EMULATION_NAME}.xdc";
2113EOF
2114fi
92b93329 2115fragment <<EOF
0e1862bb 2116 else if (bfd_link_pie (&link_info))
36af4a4e
JJ
2117 return "ldscripts/${EMULATION_NAME}.xd";
2118EOF
2119fi
a060b769
AM
2120if test -n "$GENERATE_SHLIB_SCRIPT" ; then
2121if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2122fragment <<EOF
0e1862bb 2123 else if (bfd_link_dll (&link_info) && link_info.combreloc
fbfca19e 2124 && link_info.relro && (link_info.flags & DF_BIND_NOW))
8c37241b 2125 return "ldscripts/${EMULATION_NAME}.xsw";
0e1862bb 2126 else if (bfd_link_dll (&link_info) && link_info.combreloc)
a060b769
AM
2127 return "ldscripts/${EMULATION_NAME}.xsc";
2128EOF
2129fi
92b93329 2130fragment <<EOF
0e1862bb 2131 else if (bfd_link_dll (&link_info))
252b5132 2132 return "ldscripts/${EMULATION_NAME}.xs";
a060b769
AM
2133EOF
2134fi
2135if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2136fragment <<EOF
8c37241b 2137 else if (link_info.combreloc && link_info.relro
fbfca19e 2138 && (link_info.flags & DF_BIND_NOW))
8c37241b 2139 return "ldscripts/${EMULATION_NAME}.xw";
a060b769
AM
2140 else if (link_info.combreloc)
2141 return "ldscripts/${EMULATION_NAME}.xc";
2142EOF
2143fi
92b93329 2144fragment <<EOF
252b5132
RH
2145 else
2146 return "ldscripts/${EMULATION_NAME}.x";
2147}
252b5132 2148
3b108066 2149EOF
41392f03
AM
2150fi
2151fi
3b108066 2152
e0ee487b 2153if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
92b93329 2154fragment <<EOF
e0ee487b
L
2155 $PARSE_AND_LIST_PROLOGUE
2156EOF
2157fi
2158
92b93329 2159fragment <<EOF
e0ee487b 2160
6c1439be
L
2161#define OPTION_DISABLE_NEW_DTAGS (400)
2162#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
a1ab1d2a 2163#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
65765700 2164#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
b58f81ae 2165#define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
fdc90cb4 2166#define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1)
c0065db7 2167#define OPTION_BUILD_ID (OPTION_HASH_STYLE + 1)
7ee314fa 2168#define OPTION_AUDIT (OPTION_BUILD_ID + 1)
0ce398f1 2169#define OPTION_COMPRESS_DEBUG (OPTION_AUDIT + 1)
e13629bc 2170
3bcf5557 2171static void
0c7a8e5a
AM
2172gld${EMULATION_NAME}_add_options
2173 (int ns, char **shortopts, int nl, struct option **longopts,
2174 int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
e0ee487b 2175{
fb42df5e
AM
2176EOF
2177if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2178fragment <<EOF
7ee314fa 2179 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:";
fb42df5e
AM
2180EOF
2181else
2182fragment <<EOF
2183 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
2184EOF
2185fi
2186fragment <<EOF
3bcf5557 2187 static const struct option xtra_long[] = {
fb42df5e
AM
2188EOF
2189if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2190fragment <<EOF
7ee314fa 2191 {"audit", required_argument, NULL, OPTION_AUDIT},
fb42df5e
AM
2192 {"Bgroup", no_argument, NULL, OPTION_GROUP},
2193EOF
2194fi
2195fragment <<EOF
2196 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
0ce398f1 2197 {"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG},
e0ee487b 2198EOF
e0ee487b 2199if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2200fragment <<EOF
fb42df5e 2201 {"depaudit", required_argument, NULL, 'P'},
3bcf5557
AM
2202 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
2203 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
2204 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
b58f81ae 2205 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
fdc90cb4 2206 {"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
e0ee487b
L
2207EOF
2208fi
e0ee487b 2209if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
92b93329 2210fragment <<EOF
3bcf5557 2211 $PARSE_AND_LIST_LONGOPTS
e0ee487b
L
2212EOF
2213fi
92b93329 2214fragment <<EOF
3bcf5557
AM
2215 {NULL, no_argument, NULL, 0}
2216 };
2217
2218 *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
2219 memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
2220 *longopts = (struct option *)
2221 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
2222 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
2223}
04925e1e 2224
24382dca 2225#define DEFAULT_BUILD_ID_STYLE "sha1"
c0065db7 2226
3bcf5557 2227static bfd_boolean
0c7a8e5a 2228gld${EMULATION_NAME}_handle_option (int optc)
e0ee487b 2229{
e0ee487b
L
2230 switch (optc)
2231 {
2232 default:
3bcf5557 2233 return FALSE;
6c1439be 2234
c0065db7 2235 case OPTION_BUILD_ID:
30e8ee25 2236 if (emit_note_gnu_build_id != NULL)
c0065db7 2237 {
30e8ee25
AM
2238 free ((char *) emit_note_gnu_build_id);
2239 emit_note_gnu_build_id = NULL;
c0065db7
RM
2240 }
2241 if (optarg == NULL)
2242 optarg = DEFAULT_BUILD_ID_STYLE;
2243 if (strcmp (optarg, "none"))
30e8ee25 2244 emit_note_gnu_build_id = xstrdup (optarg);
c0065db7 2245 break;
fb42df5e 2246
0ce398f1
L
2247 case OPTION_COMPRESS_DEBUG:
2248 if (strcasecmp (optarg, "none") == 0)
2249 link_info.compress_debug = COMPRESS_DEBUG_NONE;
2250 else if (strcasecmp (optarg, "zlib") == 0)
19a7fe52 2251 link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
0ce398f1
L
2252 else if (strcasecmp (optarg, "zlib-gnu") == 0)
2253 link_info.compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
2254 else if (strcasecmp (optarg, "zlib-gabi") == 0)
2255 link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
2256 else
2257 einfo (_("%P%F: invalid --compress-debug-sections option: \`%s'\n"),
2258 optarg);
2259 break;
fb42df5e
AM
2260EOF
2261
2262if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2263fragment <<EOF
7ee314fa 2264 case OPTION_AUDIT:
4724d37e 2265 gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg);
7ee314fa 2266 break;
fb42df5e 2267
7ee314fa
AM
2268 case 'P':
2269 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg);
2270 break;
c0065db7 2271
6c1439be 2272 case OPTION_DISABLE_NEW_DTAGS:
b34976b6 2273 link_info.new_dtags = FALSE;
6c1439be
L
2274 break;
2275
2276 case OPTION_ENABLE_NEW_DTAGS:
b34976b6 2277 link_info.new_dtags = TRUE;
6c1439be
L
2278 break;
2279
65765700 2280 case OPTION_EH_FRAME_HDR:
2f0c68f2 2281 link_info.eh_frame_hdr_type = DWARF2_EH_HDR;
65765700
JJ
2282 break;
2283
a1ab1d2a
UD
2284 case OPTION_GROUP:
2285 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
2286 /* Groups must be self-contained. */
560e09e9
NC
2287 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2288 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
a1ab1d2a
UD
2289 break;
2290
b58f81ae
DJ
2291 case OPTION_EXCLUDE_LIBS:
2292 add_excluded_libs (optarg);
2293 break;
2294
fdc90cb4
JJ
2295 case OPTION_HASH_STYLE:
2296 link_info.emit_hash = FALSE;
2297 link_info.emit_gnu_hash = FALSE;
2298 if (strcmp (optarg, "sysv") == 0)
2299 link_info.emit_hash = TRUE;
2300 else if (strcmp (optarg, "gnu") == 0)
2301 link_info.emit_gnu_hash = TRUE;
2302 else if (strcmp (optarg, "both") == 0)
2303 {
2304 link_info.emit_hash = TRUE;
2305 link_info.emit_gnu_hash = TRUE;
2306 }
2307 else
2308 einfo (_("%P%F: invalid hash style \`%s'\n"), optarg);
2309 break;
2310
fb42df5e
AM
2311EOF
2312fi
2313fragment <<EOF
e0ee487b 2314 case 'z':
fb42df5e
AM
2315 if (strcmp (optarg, "defs") == 0)
2316 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2317 else if (strcmp (optarg, "muldefs") == 0)
2318 link_info.allow_multiple_definition = TRUE;
2319 else if (CONST_STRNEQ (optarg, "max-page-size="))
2320 {
2321 char *end;
2322
2323 config.maxpagesize = strtoul (optarg + 14, &end, 0);
2324 if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0)
2325 einfo (_("%P%F: invalid maxium page size \`%s'\n"),
2326 optarg + 14);
2327 }
2328 else if (CONST_STRNEQ (optarg, "common-page-size="))
2329 {
2330 char *end;
2331 config.commonpagesize = strtoul (optarg + 17, &end, 0);
2332 if (*end
2333 || (config.commonpagesize & (config.commonpagesize - 1)) != 0)
2334 einfo (_("%P%F: invalid common page size \`%s'\n"),
2335 optarg + 17);
2336 }
04c3a755
NS
2337 else if (CONST_STRNEQ (optarg, "stack-size="))
2338 {
2339 char *end;
2340 link_info.stacksize = strtoul (optarg + 11, &end, 0);
2341 if (*end || link_info.stacksize < 0)
2342 einfo (_("%P%F: invalid stack size \`%s'\n"), optarg + 11);
2343 if (!link_info.stacksize)
2344 /* Use -1 for explicit no-stack, because zero means
2345 'default'. */
2346 link_info.stacksize = -1;
2347 }
fb42df5e
AM
2348 else if (strcmp (optarg, "execstack") == 0)
2349 {
2350 link_info.execstack = TRUE;
2351 link_info.noexecstack = FALSE;
2352 }
2353 else if (strcmp (optarg, "noexecstack") == 0)
2354 {
2355 link_info.noexecstack = TRUE;
2356 link_info.execstack = FALSE;
2357 }
2358EOF
d258b828 2359
fb42df5e
AM
2360if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2361fragment <<EOF
b039ef04
L
2362 else if (strcmp (optarg, "global") == 0)
2363 link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL;
fb42df5e 2364 else if (strcmp (optarg, "initfirst") == 0)
e0ee487b
L
2365 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
2366 else if (strcmp (optarg, "interpose") == 0)
2367 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
2368 else if (strcmp (optarg, "loadfltr") == 0)
2369 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
2370 else if (strcmp (optarg, "nodefaultlib") == 0)
2371 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
2372 else if (strcmp (optarg, "nodelete") == 0)
2373 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
2374 else if (strcmp (optarg, "nodlopen") == 0)
2375 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
2376 else if (strcmp (optarg, "nodump") == 0)
2377 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
2378 else if (strcmp (optarg, "now") == 0)
2379 {
2380 link_info.flags |= (bfd_vma) DF_BIND_NOW;
2381 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
2382 }
5fa222e4
AM
2383 else if (strcmp (optarg, "lazy") == 0)
2384 {
2385 link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
2386 link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
2387 }
e0ee487b
L
2388 else if (strcmp (optarg, "origin") == 0)
2389 {
2390 link_info.flags |= (bfd_vma) DF_ORIGIN;
2391 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
2392 }
db6751f2 2393 else if (strcmp (optarg, "combreloc") == 0)
b34976b6 2394 link_info.combreloc = TRUE;
db6751f2 2395 else if (strcmp (optarg, "nocombreloc") == 0)
b34976b6 2396 link_info.combreloc = FALSE;
8bd621d8 2397 else if (strcmp (optarg, "nocopyreloc") == 0)
0c7a8e5a 2398 link_info.nocopyreloc = TRUE;
8c37241b
JJ
2399 else if (strcmp (optarg, "relro") == 0)
2400 link_info.relro = TRUE;
2401 else if (strcmp (optarg, "norelro") == 0)
2402 link_info.relro = FALSE;
c192a133
AM
2403 else if (strcmp (optarg, "text") == 0)
2404 link_info.error_textrel = TRUE;
2405 else if (strcmp (optarg, "notext") == 0)
2406 link_info.error_textrel = FALSE;
2407 else if (strcmp (optarg, "textoff") == 0)
2408 link_info.error_textrel = FALSE;
88b882e9 2409EOF
fb42df5e 2410fi
88b882e9 2411
eba27bd7
L
2412if test -n "$PARSE_AND_LIST_ARGS_CASE_Z" ; then
2413fragment <<EOF
2414 $PARSE_AND_LIST_ARGS_CASE_Z
2415EOF
2416fi
2417
92b93329 2418fragment <<EOF
fb42df5e
AM
2419 else
2420 einfo (_("%P: warning: -z %s ignored.\n"), optarg);
6c1439be 2421 break;
e0ee487b 2422EOF
e0ee487b
L
2423
2424if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
92b93329 2425fragment <<EOF
e0ee487b
L
2426 $PARSE_AND_LIST_ARGS_CASES
2427EOF
2428fi
2429
92b93329 2430fragment <<EOF
e0ee487b
L
2431 }
2432
3bcf5557 2433 return TRUE;
e0ee487b
L
2434}
2435
41392f03 2436EOF
41392f03 2437
4b209b22 2438if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
c58212ea 2439gld_list_options="gld${EMULATION_NAME}_list_options"
eba27bd7 2440if test -n "$PARSE_AND_LIST_OPTIONS"; then
92b93329 2441fragment <<EOF
41392f03 2442
e0ee487b 2443static void
0c7a8e5a 2444gld${EMULATION_NAME}_list_options (FILE * file)
e0ee487b 2445{
fb42df5e 2446EOF
e0ee487b
L
2447
2448if test -n "$PARSE_AND_LIST_OPTIONS" ; then
92b93329 2449fragment <<EOF
e0ee487b
L
2450 $PARSE_AND_LIST_OPTIONS
2451EOF
2452fi
2453
92b93329 2454fragment <<EOF
e0ee487b
L
2455}
2456EOF
c58212ea
L
2457else
2458 gld_list_options="NULL"
2459fi
e0ee487b
L
2460
2461if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
92b93329 2462fragment <<EOF
e0ee487b
L
2463 $PARSE_AND_LIST_EPILOGUE
2464EOF
2465fi
41392f03 2466fi
e0ee487b 2467
92b93329 2468fragment <<EOF
252b5132 2469
60bcf0fa 2470struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
252b5132 2471{
41392f03
AM
2472 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
2473 ${LDEMUL_SYSLIB-syslib_default},
2474 ${LDEMUL_HLL-hll_default},
5fe2850d 2475 ${LDEMUL_AFTER_PARSE-gld${EMULATION_NAME}_after_parse},
41392f03 2476 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
eaeb0a9d 2477 ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation},
41392f03
AM
2478 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
2479 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
2480 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
2481 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
252b5132
RH
2482 "${EMULATION_NAME}",
2483 "${OUTPUT_FORMAT}",
eaeb0a9d 2484 ${LDEMUL_FINISH-finish_default},
41392f03
AM
2485 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
2486 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
2487 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
2488 ${LDEMUL_SET_SYMBOLS-NULL},
3bcf5557
AM
2489 ${LDEMUL_PARSE_ARGS-NULL},
2490 gld${EMULATION_NAME}_add_options,
2491 gld${EMULATION_NAME}_handle_option,
41392f03 2492 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
c58212ea 2493 ${LDEMUL_LIST_OPTIONS-${gld_list_options}},
4a43e768 2494 ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
41392f03 2495 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
7a2f2d82
DD
2496 ${LDEMUL_NEW_VERS_PATTERN-NULL},
2497 ${LDEMUL_EXTRA_MAP_FILE_TEXT-NULL}
252b5132
RH
2498};
2499EOF
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