PR24042, Global-buffer-overflow problem in output_rel_find
[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 ${EMULATION_NAME}
219d1afa 15 Copyright (C) 1991-2018 Free Software Foundation, Inc.
252b5132
RH
16 Written by Steve Chamberlain <sac@cygnus.com>
17 ELF support by Ian Lance Taylor <ian@cygnus.com>
18
f96b4a7b
NC
19 This file is part of the GNU Binutils.
20
21 This program is free software; you can redistribute it and/or modify
22 it under the terms of the GNU General Public License as published by
23 the Free Software Foundation; either version 3 of the License, or
24 (at your option) any later version.
25
26 This program is distributed in the hope that it will be useful,
27 but WITHOUT ANY WARRANTY; without even the implied warranty of
28 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
29 GNU General Public License for more details.
30
31 You should have received a copy of the GNU General Public License
32 along with this program; if not, write to the Free Software
33 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
34 MA 02110-1301, USA. */
252b5132
RH
35
36#define TARGET_IS_${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${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
caa65211 106 `if test -n "$CALL_NOP_BYTE" ; then echo link_info.call_nop_byte = $CALL_NOP_BYTE; fi`;
5c3261b0 107 link_info.check_relocs_after_open_input = TRUE;
647e4d46 108 link_info.relro = DEFAULT_LD_Z_RELRO;
f6aec96d 109 link_info.separate_code = DEFAULT_LD_Z_SEPARATE_CODE;
663fa543
L
110}
111
822b8bf4 112EOF
663fa543 113fi
822b8bf4 114
5fe2850d
L
115if test x"$LDEMUL_AFTER_PARSE" != xgld"$EMULATION_NAME"_after_parse; then
116fragment <<EOF
117
118static void
119gld${EMULATION_NAME}_after_parse (void)
120{
121 if (bfd_link_pie (&link_info))
122 link_info.flags_1 |= (bfd_vma) DF_1_PIE;
123
22b1ee18
AM
124 if (bfd_link_executable (&link_info)
125 && link_info.nointerp)
126 {
127 if (link_info.dynamic_undefined_weak > 0)
128 einfo (_("%P: warning: -z dynamic-undefined-weak ignored\n"));
129 link_info.dynamic_undefined_weak = 0;
130 }
5fe2850d
L
131 after_parse_default ();
132}
133
134EOF
135fi
136
4a43e768 137if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then
92b93329 138fragment <<EOF
ddbb8a31 139/* Handle the generation of DT_NEEDED tags. */
4a43e768
AM
140
141static bfd_boolean
142gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
143{
96d56e9f 144 int link_class = 0;
4a43e768
AM
145
146 /* Tell the ELF linker that we don't want the output file to have a
147 DT_NEEDED entry for this file, unless it is used to resolve
148 references in a regular object. */
66be1055 149 if (entry->flags.add_DT_NEEDED_for_regular)
96d56e9f 150 link_class = DYN_AS_NEEDED;
e56f61be
L
151
152 /* Tell the ELF linker that we don't want the output file to have a
153 DT_NEEDED entry for any dynamic library in DT_NEEDED tags from
154 this file at all. */
66be1055 155 if (!entry->flags.add_DT_NEEDED_for_dynamic)
96d56e9f 156 link_class |= DYN_NO_ADD_NEEDED;
e56f61be 157
66be1055 158 if (entry->flags.just_syms
12b9ff6c 159 && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0)
df5f2391 160 einfo (_("%F%P: %pB: --just-symbols may not be used on DSO\n"),
12b9ff6c
L
161 entry->the_bfd);
162
ddbb8a31 163 if (link_class == 0
e56f61be
L
164 || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0)
165 return FALSE;
166
1e9cc1c2 167 bfd_elf_set_dyn_lib_class (entry->the_bfd,
4724d37e 168 (enum dynamic_lib_link_class) link_class);
4a43e768
AM
169
170 /* Continue on with normal load_symbols processing. */
171 return FALSE;
172}
173EOF
174fi
175
92b93329 176fragment <<EOF
252b5132
RH
177
178/* These variables are required to pass information back and forth
179 between after_open and check_needed and stat_needed and vercheck. */
180
181static struct bfd_link_needed_list *global_needed;
182static struct stat global_stat;
e13629bc 183static lang_input_statement_type *global_found;
252b5132 184static struct bfd_link_needed_list *global_vercheck_needed;
b34976b6 185static bfd_boolean global_vercheck_failed;
252b5132 186
7ee314fa
AM
187/* These variables are used to implement target options */
188
189static char *audit; /* colon (typically) separated list of libs */
190static char *depaudit; /* colon (typically) separated list of libs */
252b5132 191
30e8ee25
AM
192/* Style of .note.gnu.build-id section. */
193static const char *emit_note_gnu_build_id;
194
04925e1e
AM
195/* On Linux, it's possible to have different versions of the same
196 shared library linked against different versions of libc. The
197 dynamic linker somehow tags which libc version to use in
198 /etc/ld.so.cache, and, based on the libc that it sees in the
199 executable, chooses which version of the shared library to use.
252b5132 200
04925e1e
AM
201 We try to do a similar check here by checking whether this shared
202 library needs any other shared libraries which may conflict with
203 libraries we have already included in the link. If it does, we
204 skip it, and try to find another shared library farther on down the
205 link path.
252b5132 206
04925e1e
AM
207 This is called via lang_for_each_input_file.
208 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
f813923c 209 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
04925e1e 210 a conflicting version. */
252b5132 211
04925e1e 212static void
0c7a8e5a 213gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
04925e1e 214{
1c9acd94 215 const char *soname;
04925e1e 216 struct bfd_link_needed_list *l;
252b5132 217
04925e1e
AM
218 if (global_vercheck_failed)
219 return;
220 if (s->the_bfd == NULL
221 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
222 return;
252b5132 223
04925e1e
AM
224 soname = bfd_elf_get_dt_soname (s->the_bfd);
225 if (soname == NULL)
fed2999d 226 soname = lbasename (bfd_get_filename (s->the_bfd));
04925e1e
AM
227
228 for (l = global_vercheck_needed; l != NULL; l = l->next)
229 {
230 const char *suffix;
231
42627821 232 if (filename_cmp (soname, l->name) == 0)
04925e1e
AM
233 {
234 /* Probably can't happen, but it's an easy check. */
235 continue;
252b5132
RH
236 }
237
04925e1e 238 if (strchr (l->name, '/') != NULL)
252b5132
RH
239 continue;
240
04925e1e
AM
241 suffix = strstr (l->name, ".so.");
242 if (suffix == NULL)
243 continue;
244
245 suffix += sizeof ".so." - 1;
246
42627821 247 if (filename_ncmp (soname, l->name, suffix - l->name) == 0)
04925e1e
AM
248 {
249 /* Here we know that S is a dynamic object FOO.SO.VER1, and
0c7a8e5a
AM
250 the object we are considering needs a dynamic object
251 FOO.SO.VER2, and VER1 and VER2 are different. This
252 appears to be a version mismatch, so we tell the caller
253 to try a different version of this library. */
b34976b6 254 global_vercheck_failed = TRUE;
04925e1e
AM
255 return;
256 }
252b5132
RH
257 }
258}
259
252b5132 260
04925e1e
AM
261/* See if an input file matches a DT_NEEDED entry by running stat on
262 the file. */
263
264static void
0c7a8e5a 265gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
252b5132 266{
04925e1e
AM
267 struct stat st;
268 const char *suffix;
269 const char *soname;
252b5132 270
e13629bc 271 if (global_found != NULL)
04925e1e
AM
272 return;
273 if (s->the_bfd == NULL)
274 return;
e13629bc
AM
275
276 /* If this input file was an as-needed entry, and wasn't found to be
277 needed at the stage it was linked, then don't say we have loaded it. */
278 if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86 279 return;
04925e1e
AM
280
281 if (bfd_stat (s->the_bfd, &st) != 0)
252b5132 282 {
df5f2391 283 einfo (_("%P: %pB: bfd_stat failed: %E\n"), s->the_bfd);
04925e1e
AM
284 return;
285 }
252b5132 286
9eabd475
ZW
287 /* Some operating systems, e.g. Windows, do not provide a meaningful
288 st_ino; they always set it to zero. (Windows does provide a
289 meaningful st_dev.) Do not indicate a duplicate library in that
290 case. While there is no guarantee that a system that provides
291 meaningful inode numbers will never set st_ino to zero, this is
292 merely an optimization, so we do not need to worry about false
293 negatives. */
04925e1e 294 if (st.st_dev == global_stat.st_dev
9eabd475
ZW
295 && st.st_ino == global_stat.st_ino
296 && st.st_ino != 0)
04925e1e 297 {
e13629bc 298 global_found = s;
04925e1e
AM
299 return;
300 }
252b5132 301
04925e1e
AM
302 /* We issue a warning if it looks like we are including two
303 different versions of the same shared library. For example,
304 there may be a problem if -lc picks up libc.so.6 but some other
305 shared library has a DT_NEEDED entry of libc.so.5. This is a
f813923c 306 heuristic test, and it will only work if the name looks like
04925e1e
AM
307 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
308 If we really want to issue warnings about mixing version numbers
309 of shared libraries, we need to find a better way. */
252b5132 310
04925e1e
AM
311 if (strchr (global_needed->name, '/') != NULL)
312 return;
313 suffix = strstr (global_needed->name, ".so.");
314 if (suffix == NULL)
315 return;
316 suffix += sizeof ".so." - 1;
252b5132 317
04925e1e
AM
318 soname = bfd_elf_get_dt_soname (s->the_bfd);
319 if (soname == NULL)
fed2999d 320 soname = lbasename (s->filename);
252b5132 321
42627821 322 if (filename_ncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
871b3ab2 323 einfo (_("%P: warning: %s, needed by %pB, may conflict with %s\n"),
1c9acd94 324 global_needed->name, global_needed->by, soname);
252b5132
RH
325}
326
e56f61be
L
327struct dt_needed
328{
329 bfd *by;
330 const char *name;
331};
04925e1e 332
252b5132
RH
333/* This function is called for each possible name for a dynamic object
334 named by a DT_NEEDED entry. The FORCE parameter indicates whether
335 to skip the check for a conflicting version. */
336
b34976b6 337static bfd_boolean
e56f61be
L
338gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
339 int force)
252b5132
RH
340{
341 bfd *abfd;
e56f61be 342 const char *name = needed->name;
ec4eb78a 343 const char *soname;
96d56e9f 344 int link_class;
252b5132 345
f13a99db 346 abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd));
252b5132 347 if (abfd == NULL)
0ec22c2c
NC
348 {
349 if (verbose)
350 info_msg (_("attempt to open %s failed\n"), name);
351 return FALSE;
352 }
4a114e3e
L
353
354 /* Linker needs to decompress sections. */
355 abfd->flags |= BFD_DECOMPRESS;
356
252b5132
RH
357 if (! bfd_check_format (abfd, bfd_object))
358 {
cde43e70 359 bfd_close (abfd);
b34976b6 360 return FALSE;
252b5132
RH
361 }
362 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
363 {
cde43e70 364 bfd_close (abfd);
b34976b6 365 return FALSE;
252b5132
RH
366 }
367
c4bb8067 368 /* For DT_NEEDED, they have to match. */
f13a99db 369 if (abfd->xvec != link_info.output_bfd->xvec)
c4bb8067
L
370 {
371 bfd_close (abfd);
b34976b6 372 return FALSE;
c4bb8067
L
373 }
374
252b5132
RH
375 /* Check whether this object would include any conflicting library
376 versions. If FORCE is set, then we skip this check; we use this
377 the second time around, if we couldn't find any compatible
378 instance of the shared library. */
379
380 if (! force)
381 {
91d6fa6a 382 struct bfd_link_needed_list *needs;
252b5132 383
91d6fa6a 384 if (! bfd_elf_get_bfd_needed_list (abfd, &needs))
df5f2391 385 einfo (_("%F%P: %pB: bfd_elf_get_bfd_needed_list failed: %E\n"), abfd);
252b5132 386
91d6fa6a 387 if (needs != NULL)
252b5132 388 {
91d6fa6a 389 global_vercheck_needed = needs;
b34976b6 390 global_vercheck_failed = FALSE;
252b5132
RH
391 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
392 if (global_vercheck_failed)
393 {
cde43e70 394 bfd_close (abfd);
b34976b6 395 /* Return FALSE to force the caller to move on to try
0c7a8e5a 396 another file on the search path. */
b34976b6 397 return FALSE;
252b5132
RH
398 }
399
400 /* But wait! It gets much worse. On Linux, if a shared
0c7a8e5a
AM
401 library does not use libc at all, we are supposed to skip
402 it the first time around in case we encounter a shared
403 library later on with the same name which does use the
404 version of libc that we want. This is much too horrible
405 to use on any system other than Linux. */
252b5132
RH
406
407EOF
408case ${target} in
a5244b7e 409 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 410 fragment <<EOF
252b5132
RH
411 {
412 struct bfd_link_needed_list *l;
413
91d6fa6a 414 for (l = needs; l != NULL; l = l->next)
0112cd26 415 if (CONST_STRNEQ (l->name, "libc.so"))
252b5132
RH
416 break;
417 if (l == NULL)
418 {
cde43e70 419 bfd_close (abfd);
b34976b6 420 return FALSE;
252b5132
RH
421 }
422 }
423
424EOF
425 ;;
426esac
92b93329 427fragment <<EOF
252b5132
RH
428 }
429 }
430
431 /* We've found a dynamic object matching the DT_NEEDED entry. */
432
04925e1e
AM
433 /* We have already checked that there is no other input file of the
434 same name. We must now check again that we are not including the
435 same file twice. We need to do this because on many systems
436 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
437 reference libc.so.1. If we have already included libc.so, we
438 don't want to include libc.so.1 if they are the same file, and we
439 can only check that using stat. */
440
441 if (bfd_stat (abfd, &global_stat) != 0)
df5f2391 442 einfo (_("%F%P: %pB: bfd_stat failed: %E\n"), abfd);
ec4eb78a
L
443
444 /* First strip off everything before the last '/'. */
fed2999d 445 soname = lbasename (abfd->filename);
ec4eb78a 446
cd6f1cf3 447 if (verbose)
ec4eb78a
L
448 info_msg (_("found %s at %s\n"), soname, name);
449
e13629bc 450 global_found = NULL;
04925e1e 451 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
e13629bc 452 if (global_found != NULL)
04925e1e 453 {
b34976b6 454 /* Return TRUE to indicate that we found the file, even though
0c7a8e5a 455 we aren't going to do anything with it. */
b34976b6 456 return TRUE;
04925e1e
AM
457 }
458
4a43e768
AM
459 /* Specify the soname to use. */
460 bfd_elf_set_dt_needed_name (abfd, soname);
04925e1e 461
4a43e768
AM
462 /* Tell the ELF linker that we don't want the output file to have a
463 DT_NEEDED entry for this file, unless it is used to resolve
464 references in a regular object. */
96d56e9f 465 link_class = DYN_DT_NEEDED;
e56f61be
L
466
467 /* Tell the ELF linker that we don't want the output file to have a
468 DT_NEEDED entry for this file at all if the entry is from a file
469 with DYN_NO_ADD_NEEDED. */
7e9f0867
AM
470 if (needed->by != NULL
471 && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
96d56e9f 472 link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
e56f61be 473
1e9cc1c2 474 bfd_elf_set_dyn_lib_class (abfd, (enum dynamic_lib_link_class) link_class);
04925e1e
AM
475
476 /* Add this file into the symbol table. */
477 if (! bfd_link_add_symbols (abfd, &link_info))
df5f2391 478 einfo (_("%F%P: %pB: error adding symbols: %E\n"), abfd);
04925e1e 479
b34976b6 480 return TRUE;
04925e1e
AM
481}
482
04925e1e
AM
483/* Search for a needed file in a path. */
484
b34976b6 485static bfd_boolean
e56f61be
L
486gld${EMULATION_NAME}_search_needed (const char *path,
487 struct dt_needed *n, int force)
04925e1e
AM
488{
489 const char *s;
e56f61be 490 const char *name = n->name;
04925e1e 491 size_t len;
e56f61be 492 struct dt_needed needed;
04925e1e 493
cc5ce052 494 if (name[0] == '/')
e56f61be 495 return gld${EMULATION_NAME}_try_needed (n, force);
cc5ce052 496
04925e1e 497 if (path == NULL || *path == '\0')
b34976b6 498 return FALSE;
e56f61be
L
499
500 needed.by = n->by;
501 needed.name = n->name;
502
04925e1e
AM
503 len = strlen (name);
504 while (1)
505 {
e680a6b6 506 unsigned offset = 0;
199fa1b7 507 char * var;
04925e1e
AM
508 char *filename, *sset;
509
c76308d2 510 s = strchr (path, config.rpath_separator);
04925e1e
AM
511 if (s == NULL)
512 s = path + strlen (path);
513
07f1e47a
AM
514#if HAVE_DOS_BASED_FILE_SYSTEM
515 /* Assume a match on the second char is part of drive specifier. */
516 else if (config.rpath_separator == ':'
517 && s == path + 1
518 && ISALPHA (*path))
519 {
520 s = strchr (s + 1, config.rpath_separator);
521 if (s == NULL)
522 s = path + strlen (path);
523 }
524#endif
04925e1e
AM
525 filename = (char *) xmalloc (s - path + len + 2);
526 if (s == path)
527 sset = filename;
528 else
529 {
530 memcpy (filename, path, s - path);
531 filename[s - path] = '/';
532 sset = filename + (s - path) + 1;
533 }
534 strcpy (sset, name);
535
199fa1b7
NC
536 /* PR 20535: Support the same pseudo-environment variables that
537 are supported by ld.so. Namely, $ORIGIN, $LIB and $PLATFORM.
559192d8 538 Since there can be more than one occurrence of these tokens in
e680a6b6
NC
539 the path we loop until no more are found. Since we might not
540 be able to substitute some of the tokens we maintain an offset
541 into the filename for where we should begin our scan. */
542 while ((var = strchr (filename + offset, '$')) != NULL)
199fa1b7
NC
543 {
544 /* The ld.so manual page does not say, but I am going to assume that
839b0b3f 545 these tokens are terminated by a directory separator character
199fa1b7
NC
546 (/) or the end of the string. There is also an implication that
547 $ORIGIN should only be used at the start of a path, but that is
548 not enforced here.
549
e680a6b6
NC
550 The ld.so manual page also states that it allows ${ORIGIN},
551 ${LIB} and ${PLATFORM}, so these are supported as well.
199fa1b7
NC
552
553 FIXME: The code could be a lot cleverer about allocating space
554 for the processed string. */
555 char * end = strchr (var, '/');
556 char * replacement = NULL;
e680a6b6 557 char * v = var + 1;
199fa1b7
NC
558 char * freeme = NULL;
559 unsigned flen = strlen (filename);
560
561 if (end != NULL)
562 /* Temporarily terminate the filename at the end of the token. */
563 * end = 0;
564
e680a6b6
NC
565 if (*v == '{')
566 ++ v;
567 switch (*v++)
199fa1b7
NC
568 {
569 case 'O':
e680a6b6 570 if (strcmp (v, "RIGIN") == 0 || strcmp (v, "RIGIN}") == 0)
199fa1b7
NC
571 {
572 /* ORIGIN - replace with the full path to the directory
573 containing the program or shared object. */
574 if (needed.by == NULL)
e680a6b6
NC
575 {
576 if (link_info.output_bfd == NULL)
577 {
578 break;
579 }
580 else
581 replacement = bfd_get_filename (link_info.output_bfd);
582 }
583 else
584 replacement = bfd_get_filename (needed.by);
585
199fa1b7
NC
586 if (replacement)
587 {
588 char * slash;
589
590 if (replacement[0] == '/')
591 freeme = xstrdup (replacement);
592 else
593 {
594 char * current_dir = getpwd ();
595
51750acd 596 freeme = xmalloc (strlen (replacement) + strlen (current_dir) + 2);
199fa1b7
NC
597 sprintf (freeme, "%s/%s", current_dir, replacement);
598 }
599
600 replacement = freeme;
601 if ((slash = strrchr (replacement, '/')) != NULL)
602 * slash = 0;
603 }
604 }
605 break;
606
607 case 'L':
e680a6b6 608 if (strcmp (v, "IB") == 0 || strcmp (v, "IB}") == 0)
199fa1b7
NC
609 {
610 /* LIB - replace with "lib" in 32-bit environments
611 and "lib64" in 64-bit environments. */
612
613 /* Note - we could replace this switch statement by
614 conditional fragments of shell script, but that is messy.
615 Any compiler worth its salt is going to optimize away
616 all but one of these case statements anyway. */
617 switch ($ELFSIZE)
618 {
619 case 32: replacement = "lib"; break;
620 case 64: replacement = "lib64"; break;
621 default:
622 /* $ELFSIZE is not 32 or 64 ... */
623 abort ();
624 }
625 }
626 break;
627
628 case 'P':
e680a6b6
NC
629 /* Supporting $PLATFORM in a cross-hosted environment is not
630 possible. Supporting it in a native environment involves
631 loading the <sys/auxv.h> header file which loads the
632 system <elf.h> header file, which conflicts with the
633 "include/elf/mips.h" header file. */
634 /* Fall through. */
199fa1b7
NC
635 default:
636 break;
637 }
638
639 if (replacement)
640 {
641 char * filename2 = xmalloc (flen + strlen (replacement));
642
643 if (end)
e680a6b6
NC
644 {
645 sprintf (filename2, "%.*s%s/%s",
646 (int)(var - filename), filename,
647 replacement, end + 1);
648 offset = (var - filename) + 1 + strlen (replacement);
649 }
199fa1b7 650 else
e680a6b6
NC
651 {
652 sprintf (filename2, "%.*s%s",
653 (int)(var - filename), filename,
654 replacement);
655 offset = var - filename + strlen (replacement);
656 }
657
199fa1b7
NC
658 free (filename);
659 filename = filename2;
660 /* There is no need to restore the path separator (when
661 end != NULL) as we have replaced the entire string. */
662 }
663 else
664 {
665 if (verbose)
666 /* We only issue an "unrecognised" message in verbose mode
667 as the $<foo> token might be a legitimate component of
668 a path name in the target's file system. */
88ba72a2 669 info_msg (_("unrecognised or unsupported token '%s' in search path\n"), var);
199fa1b7
NC
670
671 if (end)
672 /* Restore the path separator. */
673 * end = '/';
e680a6b6 674
559192d8
AM
675 /* PR 20784: Make sure that we resume the scan *after*
676 the token that we could not replace. */
e680a6b6 677 offset = (var + 1) - filename;
199fa1b7
NC
678 }
679
680 free (freeme);
681 }
682
e56f61be 683 needed.name = filename;
e680a6b6 684
e56f61be 685 if (gld${EMULATION_NAME}_try_needed (&needed, force))
b34976b6 686 return TRUE;
04925e1e
AM
687
688 free (filename);
689
690 if (*s == '\0')
691 break;
692 path = s + 1;
693 }
694
b34976b6 695 return FALSE;
04925e1e
AM
696}
697
698EOF
9c8ebd6a 699if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 700 fragment <<EOF
9c8ebd6a 701
316a1245
AM
702/* Prefix the sysroot to absolute paths in PATH, a string containing
703 paths separated by config.rpath_separator. If running on a DOS
704 file system, paths containing a drive spec won't have the sysroot
705 prefix added, unless the sysroot also specifies the same drive. */
9c8ebd6a 706
316a1245 707static const char *
0c7a8e5a 708gld${EMULATION_NAME}_add_sysroot (const char *path)
9c8ebd6a 709{
316a1245
AM
710 size_t len, extra;
711 const char *p;
712 char *ret, *q;
713 int dos_drive_sysroot = HAS_DRIVE_SPEC (ld_sysroot);
714
715 len = strlen (ld_sysroot);
716 for (extra = 0, p = path; ; )
717 {
718 int dos_drive = HAS_DRIVE_SPEC (p);
719
720 if (dos_drive)
721 p += 2;
722 if (IS_DIR_SEPARATOR (*p)
723 && (!dos_drive
724 || (dos_drive_sysroot
725 && ld_sysroot[0] == p[-2])))
726 {
727 if (dos_drive && dos_drive_sysroot)
728 extra += len - 2;
729 else
730 extra += len;
731 }
732 p = strchr (p, config.rpath_separator);
733 if (!p)
734 break;
735 ++p;
736 }
737
738 ret = xmalloc (strlen (path) + extra + 1);
739
740 for (q = ret, p = path; ; )
741 {
742 const char *end;
743 int dos_drive = HAS_DRIVE_SPEC (p);
744
745 if (dos_drive)
746 {
747 *q++ = *p++;
748 *q++ = *p++;
749 }
750 if (IS_DIR_SEPARATOR (*p)
751 && (!dos_drive
752 || (dos_drive_sysroot
753 && ld_sysroot[0] == p[-2])))
754 {
755 if (dos_drive && dos_drive_sysroot)
756 {
757 strcpy (q, ld_sysroot + 2);
758 q += len - 2;
759 }
760 else
761 {
762 strcpy (q, ld_sysroot);
763 q += len;
764 }
765 }
766 end = strchr (p, config.rpath_separator);
767 if (end)
768 {
769 size_t n = end - p + 1;
770 strncpy (q, p, n);
771 q += n;
772 p += n;
773 }
774 else
775 {
776 strcpy (q, p);
777 break;
778 }
779 }
780
9c8ebd6a
DJ
781 return ret;
782}
04925e1e 783
3dc16cab
DJ
784EOF
785 case ${target} in
ebe1fac1 786 *-*-freebsd* | *-*-dragonfly*)
92b93329 787 fragment <<EOF
ebe1fac1
NC
788/* Read the system search path the FreeBSD way rather than the Linux way. */
789#ifdef HAVE_ELF_HINTS_H
790#include <elf-hints.h>
791#else
792#include "elf-hints-local.h"
793#endif
794
795static bfd_boolean
d5c8b1f8
AM
796gld${EMULATION_NAME}_check_ld_elf_hints (const struct bfd_link_needed_list *l,
797 int force)
ebe1fac1
NC
798{
799 static bfd_boolean initialized;
316a1245 800 static const char *ld_elf_hints;
ebe1fac1
NC
801 struct dt_needed needed;
802
803 if (!initialized)
804 {
805 FILE *f;
806 char *tmppath;
807
ff7a0acf 808 tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL);
ebe1fac1
NC
809 f = fopen (tmppath, FOPEN_RB);
810 free (tmppath);
811 if (f != NULL)
812 {
813 struct elfhints_hdr hdr;
814
815 if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr)
816 && hdr.magic == ELFHINTS_MAGIC
817 && hdr.version == 1)
818 {
819 if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1)
820 {
821 char *b;
822
823 b = xmalloc (hdr.dirlistlen + 1);
824 if (fread (b, 1, hdr.dirlistlen + 1, f) ==
825 hdr.dirlistlen + 1)
826 ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b);
e13629bc 827
ebe1fac1
NC
828 free (b);
829 }
830 }
831 fclose (f);
832 }
833
834 initialized = TRUE;
835 }
836
837 if (ld_elf_hints == NULL)
838 return FALSE;
839
d5c8b1f8
AM
840 needed.by = l->by;
841 needed.name = l->name;
842 return gld${EMULATION_NAME}_search_needed (ld_elf_hints, &needed, force);
ebe1fac1
NC
843}
844EOF
845 # FreeBSD
846 ;;
847
a5244b7e 848 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 849 fragment <<EOF
04925e1e
AM
850/* For a native linker, check the file /etc/ld.so.conf for directories
851 in which we may find shared libraries. /etc/ld.so.conf is really
482e8b32 852 only meaningful on Linux. */
04925e1e 853
d3989512 854struct gld${EMULATION_NAME}_ld_so_conf
04925e1e 855{
d3989512
JJ
856 char *path;
857 size_t len, alloc;
858};
04925e1e 859
dfcffada 860static bfd_boolean
d3989512
JJ
861gld${EMULATION_NAME}_parse_ld_so_conf
862 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
863
864static void
865gld${EMULATION_NAME}_parse_ld_so_conf_include
866 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
867 const char *pattern)
868{
869 char *newp = NULL;
0b48acfe 870#ifdef HAVE_GLOB
d3989512 871 glob_t gl;
0b48acfe 872#endif
d3989512
JJ
873
874 if (pattern[0] != '/')
04925e1e 875 {
d3989512
JJ
876 char *p = strrchr (filename, '/');
877 size_t patlen = strlen (pattern) + 1;
04925e1e 878
d3989512
JJ
879 newp = xmalloc (p - filename + 1 + patlen);
880 memcpy (newp, filename, p - filename + 1);
881 memcpy (newp + (p - filename + 1), pattern, patlen);
882 pattern = newp;
883 }
04925e1e 884
0b48acfe 885#ifdef HAVE_GLOB
d3989512
JJ
886 if (glob (pattern, 0, NULL, &gl) == 0)
887 {
888 size_t i;
889
890 for (i = 0; i < gl.gl_pathc; ++i)
891 gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
892 globfree (&gl);
893 }
0b48acfe
MM
894#else
895 /* If we do not have glob, treat the pattern as a literal filename. */
896 gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
897#endif
d3989512
JJ
898
899 if (newp)
900 free (newp);
901}
902
dfcffada 903static bfd_boolean
d3989512
JJ
904gld${EMULATION_NAME}_parse_ld_so_conf
905 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
906{
907 FILE *f = fopen (filename, FOPEN_RT);
563f4125
JJ
908 char *line;
909 size_t linelen;
d3989512
JJ
910
911 if (f == NULL)
dfcffada 912 return FALSE;
d3989512 913
563f4125
JJ
914 linelen = 256;
915 line = xmalloc (linelen);
916 do
d3989512 917 {
563f4125
JJ
918 char *p = line, *q;
919
920 /* Normally this would use getline(3), but we need to be portable. */
921 while ((q = fgets (p, linelen - (p - line), f)) != NULL
922 && strlen (q) == linelen - (p - line) - 1
923 && line[linelen - 2] != '\n')
924 {
925 line = xrealloc (line, 2 * linelen);
926 p = line + linelen - 1;
927 linelen += linelen;
928 }
929
930 if (q == NULL && p == line)
931 break;
d3989512
JJ
932
933 p = strchr (line, '\n');
934 if (p)
935 *p = '\0';
936
937 /* Because the file format does not know any form of quoting we
938 can search forward for the next '#' character and if found
939 make it terminating the line. */
940 p = strchr (line, '#');
941 if (p)
942 *p = '\0';
943
944 /* Remove leading whitespace. NUL is no whitespace character. */
945 p = line;
946 while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
947 ++p;
948
949 /* If the line is blank it is ignored. */
950 if (p[0] == '\0')
951 continue;
04925e1e 952
0112cd26 953 if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t'))
d3989512
JJ
954 {
955 char *dir, c;
956 p += 8;
957 do
04925e1e 958 {
d3989512
JJ
959 while (*p == ' ' || *p == '\t')
960 ++p;
04925e1e 961
d3989512
JJ
962 if (*p == '\0')
963 break;
252b5132 964
d3989512
JJ
965 dir = p;
966
967 while (*p != ' ' && *p != '\t' && *p)
968 ++p;
969
970 c = *p;
971 *p++ = '\0';
972 if (dir[0] != '\0')
973 gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
974 dir);
975 }
976 while (c != '\0');
977 }
978 else
979 {
980 char *dir = p;
981 while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
982 && *p != '\r' && *p != '\v')
983 ++p;
984
985 while (p != dir && p[-1] == '/')
986 --p;
987 if (info->path == NULL)
988 {
989 info->alloc = p - dir + 1 + 256;
990 info->path = xmalloc (info->alloc);
991 info->len = 0;
992 }
04925e1e
AM
993 else
994 {
d3989512
JJ
995 if (info->len + 1 + (p - dir) >= info->alloc)
996 {
997 info->alloc += p - dir + 256;
998 info->path = xrealloc (info->path, info->alloc);
999 }
c76308d2 1000 info->path[info->len++] = config.rpath_separator;
04925e1e 1001 }
d3989512
JJ
1002 memcpy (info->path + info->len, dir, p - dir);
1003 info->len += p - dir;
1004 info->path[info->len] = '\0';
1005 }
1006 }
563f4125 1007 while (! feof (f));
d3989512
JJ
1008 free (line);
1009 fclose (f);
dfcffada 1010 return TRUE;
d3989512 1011}
252b5132 1012
d3989512 1013static bfd_boolean
d5c8b1f8
AM
1014gld${EMULATION_NAME}_check_ld_so_conf (const struct bfd_link_needed_list *l,
1015 int force)
d3989512
JJ
1016{
1017 static bfd_boolean initialized;
316a1245 1018 static const char *ld_so_conf;
d3989512 1019 struct dt_needed needed;
252b5132 1020
d3989512
JJ
1021 if (! initialized)
1022 {
1023 char *tmppath;
1024 struct gld${EMULATION_NAME}_ld_so_conf info;
9c8ebd6a 1025
d3989512
JJ
1026 info.path = NULL;
1027 info.len = info.alloc = 0;
ff7a0acf
AM
1028 tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf",
1029 (const char *) NULL);
dfcffada
AM
1030 if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath))
1031 {
1032 free (tmppath);
ff7a0acf
AM
1033 tmppath = concat (ld_sysroot, "/etc/ld.so.conf",
1034 (const char *) NULL);
dfcffada
AM
1035 gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
1036 }
d3989512 1037 free (tmppath);
dfcffada 1038
d3989512
JJ
1039 if (info.path)
1040 {
316a1245 1041 ld_so_conf = gld${EMULATION_NAME}_add_sysroot (info.path);
d3989512 1042 free (info.path);
04925e1e 1043 }
b34976b6 1044 initialized = TRUE;
04925e1e 1045 }
49e56c49 1046
04925e1e 1047 if (ld_so_conf == NULL)
b34976b6 1048 return FALSE;
252b5132 1049
e56f61be 1050
d5c8b1f8
AM
1051 needed.by = l->by;
1052 needed.name = l->name;
e56f61be 1053 return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
252b5132
RH
1054}
1055
04925e1e 1056EOF
9c8ebd6a
DJ
1057 # Linux
1058 ;;
04925e1e
AM
1059 esac
1060fi
92b93329 1061fragment <<EOF
04925e1e 1062
252b5132
RH
1063/* See if an input file matches a DT_NEEDED entry by name. */
1064
1065static void
0c7a8e5a 1066gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
252b5132 1067{
e13629bc
AM
1068 const char *soname;
1069
1070 /* Stop looking if we've found a loaded lib. */
1071 if (global_found != NULL
1072 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
1073 & DYN_AS_NEEDED) == 0)
252b5132
RH
1074 return;
1075
e13629bc
AM
1076 if (s->filename == NULL || s->the_bfd == NULL)
1077 return;
1078
1079 /* Don't look for a second non-loaded as-needed lib. */
1080 if (global_found != NULL
1081 && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86
AM
1082 return;
1083
42627821 1084 if (filename_cmp (s->filename, global_needed->name) == 0)
252b5132 1085 {
e13629bc
AM
1086 global_found = s;
1087 return;
1088 }
577a0623 1089
66be1055 1090 if (s->flags.search_dirs)
e13629bc
AM
1091 {
1092 const char *f = strrchr (s->filename, '/');
1093 if (f != NULL
42627821 1094 && filename_cmp (f + 1, global_needed->name) == 0)
577a0623 1095 {
e13629bc 1096 global_found = s;
577a0623
AM
1097 return;
1098 }
252b5132
RH
1099 }
1100
e13629bc
AM
1101 soname = bfd_elf_get_dt_soname (s->the_bfd);
1102 if (soname != NULL
42627821 1103 && filename_cmp (soname, global_needed->name) == 0)
252b5132 1104 {
e13629bc
AM
1105 global_found = s;
1106 return;
252b5132 1107 }
252b5132
RH
1108}
1109
41392f03
AM
1110EOF
1111
1112if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
92b93329 1113fragment <<EOF
04925e1e 1114
24382dca 1115static bfd_size_type
677e5a92 1116id_note_section_size (bfd *abfd ATTRIBUTE_UNUSED)
24382dca 1117{
30e8ee25 1118 const char *style = emit_note_gnu_build_id;
24382dca 1119 bfd_size_type size;
61e2488c 1120 bfd_size_type build_id_size;
24382dca 1121
24382dca
RM
1122 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
1123 size = (size + 3) & -(bfd_size_type) 4;
1124
61e2488c
JT
1125 build_id_size = compute_build_id_size (style);
1126 if (build_id_size)
1127 size += build_id_size;
24382dca
RM
1128 else
1129 size = 0;
1130
1131 return size;
1132}
1133
24382dca 1134static bfd_boolean
30e8ee25 1135write_build_id (bfd *abfd)
24382dca
RM
1136{
1137 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
30e8ee25
AM
1138 struct elf_obj_tdata *t = elf_tdata (abfd);
1139 const char *style;
24382dca
RM
1140 asection *asec;
1141 Elf_Internal_Shdr *i_shdr;
1142 unsigned char *contents, *id_bits;
1143 bfd_size_type size;
30e8ee25 1144 file_ptr position;
24382dca
RM
1145 Elf_External_Note *e_note;
1146
c0355132
AM
1147 style = t->o->build_id.style;
1148 asec = t->o->build_id.sec;
83e4970b 1149 if (bfd_is_abs_section (asec->output_section))
24382dca 1150 {
83e4970b 1151 einfo (_("%P: warning: .note.gnu.build-id section discarded,"
df5f2391 1152 " --build-id ignored\n"));
83e4970b 1153 return TRUE;
24382dca
RM
1154 }
1155 i_shdr = &elf_section_data (asec->output_section)->this_hdr;
1156
1157 if (i_shdr->contents == NULL)
1158 {
b2ff8454 1159 if (asec->contents == NULL)
1e9cc1c2 1160 asec->contents = (unsigned char *) xmalloc (asec->size);
b2ff8454 1161 contents = asec->contents;
24382dca 1162 }
b2ff8454
RM
1163 else
1164 contents = i_shdr->contents + asec->output_offset;
24382dca 1165
1e9cc1c2 1166 e_note = (Elf_External_Note *) contents;
24382dca
RM
1167 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
1168 size = (size + 3) & -(bfd_size_type) 4;
1169 id_bits = contents + size;
1170 size = asec->size - size;
1171
1172 bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz);
1173 bfd_h_put_32 (abfd, size, &e_note->descsz);
1174 bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type);
1175 memcpy (e_note->name, "GNU", sizeof "GNU");
1176
61e2488c 1177 generate_build_id (abfd, style, bed->s->checksum_contents, id_bits, size);
24382dca 1178
30e8ee25 1179 position = i_shdr->sh_offset + asec->output_offset;
b2ff8454 1180 size = asec->size;
30e8ee25 1181 return (bfd_seek (abfd, position, SEEK_SET) == 0
b2ff8454 1182 && bfd_bwrite (contents, size, abfd) == size);
24382dca
RM
1183}
1184
30e8ee25
AM
1185/* Make .note.gnu.build-id section, and set up elf_tdata->build_id. */
1186
1187static bfd_boolean
1188setup_build_id (bfd *ibfd)
1189{
1190 asection *s;
1191 bfd_size_type size;
1192 flagword flags;
1193
1194 size = id_note_section_size (ibfd);
1195 if (size == 0)
1196 {
df5f2391 1197 einfo (_("%P: warning: unrecognized --build-id style ignored\n"));
30e8ee25
AM
1198 return FALSE;
1199 }
1200
1201 flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1202 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1203 s = bfd_make_section_with_flags (ibfd, ".note.gnu.build-id", flags);
1204 if (s != NULL && bfd_set_section_alignment (ibfd, s, 2))
1205 {
1206 struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
c0355132
AM
1207 t->o->build_id.after_write_object_contents = &write_build_id;
1208 t->o->build_id.style = emit_note_gnu_build_id;
1209 t->o->build_id.sec = s;
1210 elf_section_type (s) = SHT_NOTE;
1211 s->size = size;
1212 return TRUE;
30e8ee25
AM
1213 }
1214
df5f2391
AM
1215 einfo (_("%P: warning: cannot create .note.gnu.build-id section,"
1216 " --build-id ignored\n"));
30e8ee25
AM
1217 return FALSE;
1218}
24382dca 1219
04925e1e 1220/* This is called after all the input files have been opened. */
252b5132
RH
1221
1222static void
0c7a8e5a 1223gld${EMULATION_NAME}_after_open (void)
252b5132 1224{
04925e1e 1225 struct bfd_link_needed_list *needed, *l;
d10e7fcc 1226 struct elf_link_hash_table *htab;
cbd0eecf
L
1227 asection *s;
1228 bfd *abfd;
d10e7fcc 1229
5c3049d2
AM
1230 after_open_default ();
1231
d10e7fcc
AM
1232 htab = elf_hash_table (&link_info);
1233 if (!is_elf_hash_table (htab))
1234 return;
252b5132 1235
76359541
TP
1236 if (command_line.out_implib_filename)
1237 {
1238 unlink_if_ordinary (command_line.out_implib_filename);
1239 link_info.out_implib_bfd
1240 = bfd_openw (command_line.out_implib_filename,
1241 bfd_get_target (link_info.output_bfd));
1242
1243 if (link_info.out_implib_bfd == NULL)
1244 {
df5f2391 1245 einfo (_("%F%P: %s: can't open for writing: %E\n"),
76359541
TP
1246 command_line.out_implib_filename);
1247 }
1248 }
1249
30e8ee25 1250 if (emit_note_gnu_build_id != NULL)
c0065db7 1251 {
a654efd6
L
1252 /* Find an ELF input. */
1253 for (abfd = link_info.input_bfds;
c72f2fb2 1254 abfd != (bfd *) NULL; abfd = abfd->link.next)
ca0694ad 1255 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
57963c05
AM
1256 && bfd_count_sections (abfd) != 0
1257 && !((lang_input_statement_type *) abfd->usrdata)->flags.just_syms)
a654efd6 1258 break;
c0065db7 1259
30e8ee25
AM
1260 /* PR 10555: If there are no ELF input files do not try to
1261 create a .note.gnu-build-id section. */
1262 if (abfd == NULL
1263 || !setup_build_id (abfd))
c0065db7 1264 {
30e8ee25
AM
1265 free ((char *) emit_note_gnu_build_id);
1266 emit_note_gnu_build_id = NULL;
c0065db7
RM
1267 }
1268 }
1269
46bed679
L
1270 get_elf_backend_data (link_info.output_bfd)->setup_gnu_properties (&link_info);
1271
0e1862bb 1272 if (bfd_link_relocatable (&link_info))
76f0cad6
NC
1273 {
1274 if (link_info.execstack == ! link_info.noexecstack)
1275 /* PR ld/16744: If "-z [no]execstack" has been specified on the
1276 command line and we are perfoming a relocatable link then no
1277 PT_GNU_STACK segment will be created and so the
1278 linkinfo.[no]execstack values set in _handle_option() will have no
1279 effect. Instead we create a .note.GNU-stack section in much the
1280 same way as the assembler does with its --[no]execstack option. */
1281 (void) bfd_make_section_with_flags (link_info.input_bfds,
1282 ".note.GNU-stack",
1283 SEC_READONLY | (link_info.execstack ? SEC_CODE : 0));
1284
1285 return;
1286 }
d10e7fcc 1287
2f0c68f2 1288 if (!link_info.traditional_format)
eb3d5f3b 1289 {
cbd0eecf 1290 bfd *elfbfd = NULL;
a654efd6 1291 bfd_boolean warn_eh_frame = FALSE;
2f0c68f2 1292 int seen_type = 0;
eb3d5f3b 1293
c72f2fb2 1294 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next)
eb3d5f3b 1295 {
2f0c68f2 1296 int type = 0;
57963c05
AM
1297
1298 if (((lang_input_statement_type *) abfd->usrdata)->flags.just_syms)
1299 continue;
1300
2f0c68f2 1301 for (s = abfd->sections; s && type < COMPACT_EH_HDR; s = s->next)
4440bb77 1302 {
2f0c68f2
CM
1303 const char *name = bfd_get_section_name (abfd, s);
1304
1305 if (bfd_is_abs_section (s->output_section))
1306 continue;
1307 if (CONST_STRNEQ (name, ".eh_frame_entry"))
1308 type = COMPACT_EH_HDR;
1309 else if (strcmp (name, ".eh_frame") == 0 && s->size > 8)
1310 type = DWARF2_EH_HDR;
4440bb77 1311 }
2f0c68f2
CM
1312
1313 if (type != 0)
1314 {
1315 if (seen_type == 0)
1316 {
1317 seen_type = type;
1318 }
1319 else if (seen_type != type)
1320 {
df5f2391 1321 einfo (_("%F%P: compact frame descriptions incompatible with"
871b3ab2 1322 " DWARF2 .eh_frame from %pB\n"),
2f0c68f2
CM
1323 type == DWARF2_EH_HDR ? abfd : elfbfd);
1324 break;
1325 }
1326
1327 if (!elfbfd
1328 && (type == COMPACT_EH_HDR || link_info.eh_frame_hdr_type != 0))
1329 {
1330 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1331 elfbfd = abfd;
1332
1333 warn_eh_frame = TRUE;
1334 }
1335 }
1336
1337 if (seen_type == COMPACT_EH_HDR)
1338 link_info.eh_frame_hdr_type = COMPACT_EH_HDR;
d10e7fcc 1339 }
a654efd6 1340 if (elfbfd)
d10e7fcc
AM
1341 {
1342 const struct elf_backend_data *bed;
1343
a654efd6
L
1344 bed = get_elf_backend_data (elfbfd);
1345 s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr",
1346 bed->dynamic_sec_flags
1347 | SEC_READONLY);
d10e7fcc 1348 if (s != NULL
a654efd6
L
1349 && bfd_set_section_alignment (elfbfd, s, 2))
1350 {
1351 htab->eh_info.hdr_sec = s;
1352 warn_eh_frame = FALSE;
1353 }
eb3d5f3b 1354 }
a654efd6 1355 if (warn_eh_frame)
df5f2391
AM
1356 einfo (_("%P: warning: cannot create .eh_frame_hdr section,"
1357 " --eh-frame-hdr ignored\n"));
eb3d5f3b
JB
1358 }
1359
04925e1e
AM
1360 /* Get the list of files which appear in DT_NEEDED entries in
1361 dynamic objects included in the link (often there will be none).
1362 For each such file, we want to track down the corresponding
1363 library, and include the symbol table in the link. This is what
1364 the runtime dynamic linker will do. Tracking the files down here
1365 permits one dynamic object to include another without requiring
1366 special action by the person doing the link. Note that the
1367 needed list can actually grow while we are stepping through this
1368 loop. */
f13a99db 1369 needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info);
04925e1e 1370 for (l = needed; l != NULL; l = l->next)
252b5132 1371 {
04925e1e 1372 struct bfd_link_needed_list *ll;
e56f61be 1373 struct dt_needed n, nn;
04925e1e 1374 int force;
252b5132 1375
7e9f0867 1376 /* If the lib that needs this one was --as-needed and wasn't
4706eab9 1377 found to be needed, then this lib isn't needed either. */
7e9f0867 1378 if (l->by != NULL
4706eab9
AM
1379 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0)
1380 continue;
1381
1382 /* Skip the lib if --no-copy-dt-needed-entries and
1383 --allow-shlib-undefined is in effect. */
1384 if (l->by != NULL
1385 && link_info.unresolved_syms_in_shared_libs == RM_IGNORE
1386 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_NO_ADD_NEEDED) != 0)
7e9f0867
AM
1387 continue;
1388
04925e1e
AM
1389 /* If we've already seen this file, skip it. */
1390 for (ll = needed; ll != l; ll = ll->next)
7e9f0867
AM
1391 if ((ll->by == NULL
1392 || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
1393 && strcmp (ll->name, l->name) == 0)
04925e1e
AM
1394 break;
1395 if (ll != l)
1396 continue;
252b5132 1397
04925e1e
AM
1398 /* See if this file was included in the link explicitly. */
1399 global_needed = l;
e13629bc 1400 global_found = NULL;
04925e1e 1401 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
e13629bc
AM
1402 if (global_found != NULL
1403 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
1404 & DYN_AS_NEEDED) == 0)
04925e1e 1405 continue;
252b5132 1406
e56f61be
L
1407 n.by = l->by;
1408 n.name = l->name;
1409 nn.by = l->by;
cd6f1cf3 1410 if (verbose)
871b3ab2 1411 info_msg (_("%s needed by %pB\n"), l->name, l->by);
ec4eb78a 1412
e13629bc
AM
1413 /* As-needed libs specified on the command line (or linker script)
1414 take priority over libs found in search dirs. */
1415 if (global_found != NULL)
1416 {
1417 nn.name = global_found->filename;
1418 if (gld${EMULATION_NAME}_try_needed (&nn, TRUE))
1419 continue;
1420 }
1421
04925e1e
AM
1422 /* We need to find this file and include the symbol table. We
1423 want to search for the file in the same way that the dynamic
1424 linker will search. That means that we want to use
1425 rpath_link, rpath, then the environment variable
ec4eb78a
L
1426 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
1427 entries (native only), then the linker script LIB_SEARCH_DIRS.
1428 We do not search using the -L arguments.
252b5132 1429
04925e1e
AM
1430 We search twice. The first time, we skip objects which may
1431 introduce version mismatches. The second time, we force
1432 their use. See gld${EMULATION_NAME}_vercheck comment. */
1433 for (force = 0; force < 2; force++)
1434 {
04925e1e
AM
1435 size_t len;
1436 search_dirs_type *search;
6dd8c765 1437EOF
316a1245 1438if [ "x${NATIVE}" = xyes ] || [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1439fragment <<EOF
316a1245 1440 const char *path;
ff925e69
KK
1441EOF
1442fi
1443if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1444fragment <<EOF
6dd8c765
L
1445 struct bfd_link_needed_list *rp;
1446 int found;
1447EOF
6dd8c765 1448fi
92b93329 1449fragment <<EOF
252b5132 1450
04925e1e 1451 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
e56f61be 1452 &n, force))
04925e1e 1453 break;
dcb0bd0e 1454EOF
9c8ebd6a 1455if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1456fragment <<EOF
316a1245
AM
1457 path = command_line.rpath;
1458 if (path)
1459 {
118aa6cf 1460 path = gld${EMULATION_NAME}_add_sysroot (path);
316a1245 1461 found = gld${EMULATION_NAME}_search_needed (path, &n, force);
118aa6cf 1462 free ((char *) path);
316a1245
AM
1463 if (found)
1464 break;
1465 }
9c8ebd6a
DJ
1466EOF
1467fi
1468if [ "x${NATIVE}" = xyes ] ; then
92b93329 1469fragment <<EOF
04925e1e
AM
1470 if (command_line.rpath_link == NULL
1471 && command_line.rpath == NULL)
1472 {
316a1245
AM
1473 path = (const char *) getenv ("LD_RUN_PATH");
1474 if (path
1475 && gld${EMULATION_NAME}_search_needed (path, &n, force))
04925e1e
AM
1476 break;
1477 }
316a1245
AM
1478 path = (const char *) getenv ("LD_LIBRARY_PATH");
1479 if (path
1480 && gld${EMULATION_NAME}_search_needed (path, &n, force))
04925e1e 1481 break;
9c8ebd6a
DJ
1482EOF
1483fi
1484if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1485fragment <<EOF
ec4eb78a 1486 found = 0;
f13a99db 1487 rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info);
6dd8c765 1488 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a 1489 {
316a1245 1490 path = gld${EMULATION_NAME}_add_sysroot (rp->name);
ec4eb78a 1491 found = (rp->by == l->by
316a1245 1492 && gld${EMULATION_NAME}_search_needed (path, &n,
ec4eb78a 1493 force));
316a1245 1494 free ((char *) path);
ec4eb78a
L
1495 }
1496 if (found)
1497 break;
1498
04925e1e 1499EOF
04925e1e 1500fi
c1446dba
L
1501if [ "x${USE_LIBPATH}" = xyes ] ; then
1502 case ${target} in
ebe1fac1 1503 *-*-freebsd* | *-*-dragonfly*)
92b93329 1504 fragment <<EOF
d5c8b1f8 1505 if (gld${EMULATION_NAME}_check_ld_elf_hints (l, force))
ebe1fac1
NC
1506 break;
1507EOF
1508 # FreeBSD
1509 ;;
1510
a5244b7e 1511 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 1512 fragment <<EOF
d5c8b1f8 1513 if (gld${EMULATION_NAME}_check_ld_so_conf (l, force))
c1446dba
L
1514 break;
1515
1516EOF
eeaa4577 1517 # Linux
c1446dba
L
1518 ;;
1519 esac
1520fi
92b93329 1521fragment <<EOF
04925e1e
AM
1522 len = strlen (l->name);
1523 for (search = search_head; search != NULL; search = search->next)
1524 {
1525 char *filename;
252b5132 1526
04925e1e
AM
1527 if (search->cmdline)
1528 continue;
1529 filename = (char *) xmalloc (strlen (search->name) + len + 2);
1530 sprintf (filename, "%s/%s", search->name, l->name);
e56f61be
L
1531 nn.name = filename;
1532 if (gld${EMULATION_NAME}_try_needed (&nn, force))
04925e1e
AM
1533 break;
1534 free (filename);
1535 }
1536 if (search != NULL)
1537 break;
1538EOF
92b93329 1539fragment <<EOF
04925e1e 1540 }
252b5132 1541
04925e1e
AM
1542 if (force < 2)
1543 continue;
252b5132 1544
871b3ab2 1545 einfo (_("%P: warning: %s, needed by %pB, not found "
d003af55 1546 "(try using -rpath or -rpath-link)\n"),
04925e1e
AM
1547 l->name, l->by);
1548 }
2f0c68f2
CM
1549
1550 if (link_info.eh_frame_hdr_type == COMPACT_EH_HDR)
535b785f 1551 if (!bfd_elf_parse_eh_frame_entries (NULL, &link_info))
df5f2391 1552 einfo (_("%F%P: failed to parse EH frame entries\n"));
04925e1e 1553}
252b5132 1554
41392f03
AM
1555EOF
1556fi
1557
92b93329 1558fragment <<EOF
252b5132 1559
04925e1e 1560/* Look through an expression for an assignment statement. */
252b5132 1561
04925e1e 1562static void
0c7a8e5a 1563gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
04925e1e 1564{
4ea42fb7 1565 bfd_boolean provide = FALSE;
04925e1e
AM
1566
1567 switch (exp->type.node_class)
252b5132 1568 {
04925e1e 1569 case etree_provide:
bded3693 1570 case etree_provided:
4ea42fb7 1571 provide = TRUE;
839b0b3f 1572 /* Fallthru */
4ea42fb7 1573 case etree_assign:
04925e1e
AM
1574 /* We call record_link_assignment even if the symbol is defined.
1575 This is because if it is defined by a dynamic object, we
1576 actually want to use the value defined by the linker script,
1577 not the value from the dynamic object (because we are setting
1578 symbols like etext). If the symbol is defined by a regular
1579 object, then, as it happens, calling record_link_assignment
1580 will do no harm. */
04925e1e 1581 if (strcmp (exp->assign.dst, ".") != 0)
252b5132 1582 {
f13a99db
AM
1583 if (!bfd_elf_record_link_assignment (link_info.output_bfd,
1584 &link_info,
fe21a8fc
L
1585 exp->assign.dst, provide,
1586 exp->assign.hidden))
df5f2391 1587 einfo (_("%F%P: failed to record assignment to %s: %E\n"),
04925e1e 1588 exp->assign.dst);
252b5132 1589 }
04925e1e
AM
1590 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
1591 break;
252b5132 1592
04925e1e
AM
1593 case etree_binary:
1594 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
1595 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
1596 break;
252b5132 1597
04925e1e
AM
1598 case etree_trinary:
1599 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
1600 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
1601 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
1602 break;
252b5132 1603
04925e1e
AM
1604 case etree_unary:
1605 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1606 break;
252b5132 1607
04925e1e
AM
1608 default:
1609 break;
252b5132
RH
1610 }
1611}
1612
04925e1e
AM
1613
1614/* This is called by the before_allocation routine via
1615 lang_for_each_statement. It locates any assignment statements, and
1616 tells the ELF backend about them, in case they are assignments to
1617 symbols which are referred to by dynamic objects. */
1618
1619static void
0c7a8e5a 1620gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
04925e1e
AM
1621{
1622 if (s->header.type == lang_assignment_statement_enum)
1623 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1624}
1625
41392f03
AM
1626EOF
1627
1628if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
1629 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
1630 ELF_INTERPRETER_SET_DEFAULT="
1631 if (sinterp != NULL)
1632 {
5718918d
AM
1633 sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
1634 sinterp->size = strlen ((char *) sinterp->contents) + 1;
57e6abd2
AO
1635 }
1636
1637"
1638 else
1639 ELF_INTERPRETER_SET_DEFAULT=
1640 fi
92b93329 1641fragment <<EOF
04925e1e 1642
7ee314fa 1643/* used by before_allocation and handle_option. */
4724d37e 1644static void
91d6fa6a 1645gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg)
7ee314fa
AM
1646{
1647 if (*to == NULL)
91d6fa6a 1648 *to = xstrdup (op_arg);
7ee314fa
AM
1649 else
1650 {
1651 size_t to_len = strlen (*to);
91d6fa6a 1652 size_t op_arg_len = strlen (op_arg);
7ee314fa
AM
1653 char *buf;
1654 char *cp = *to;
1655
1656 /* First see whether OPTARG is already in the path. */
1657 do
1658 {
91d6fa6a
NC
1659 if (strncmp (op_arg, cp, op_arg_len) == 0
1660 && (cp[op_arg_len] == 0
1661 || cp[op_arg_len] == config.rpath_separator))
7ee314fa
AM
1662 /* We found it. */
1663 break;
1664
1665 /* Not yet found. */
1666 cp = strchr (cp, config.rpath_separator);
1667 if (cp != NULL)
1668 ++cp;
1669 }
1670 while (cp != NULL);
1671
1672 if (cp == NULL)
1673 {
91d6fa6a 1674 buf = xmalloc (to_len + op_arg_len + 2);
7ee314fa 1675 sprintf (buf, "%s%c%s", *to,
91d6fa6a 1676 config.rpath_separator, op_arg);
7ee314fa
AM
1677 free (*to);
1678 *to = buf;
1679 }
1680 }
1681}
1682
252b5132
RH
1683/* This is called after the sections have been attached to output
1684 sections, but before any sizes or addresses have been set. */
1685
1686static void
0c7a8e5a 1687gld${EMULATION_NAME}_before_allocation (void)
252b5132
RH
1688{
1689 const char *rpath;
1690 asection *sinterp;
7ee314fa 1691 bfd *abfd;
772758ac
AM
1692 struct bfd_link_hash_entry *ehdr_start = NULL;
1693 unsigned char ehdr_start_save_type = 0;
1694 char ehdr_start_save_u[sizeof ehdr_start->u
1695 - sizeof ehdr_start->u.def.next] = "";
252b5132 1696
b4d040b1 1697 if (is_elf_hash_table (link_info.hash))
a5382c42
MR
1698 {
1699 _bfd_elf_tls_setup (link_info.output_bfd, &link_info);
e1918d23 1700
cde7cb01
MR
1701 /* Make __ehdr_start hidden if it has been referenced, to
1702 prevent the symbol from being dynamic. */
0e1862bb 1703 if (!bfd_link_relocatable (&link_info))
559192d8
AM
1704 {
1705 struct elf_link_hash_table *htab = elf_hash_table (&link_info);
1706 struct elf_link_hash_entry *h
1707 = elf_link_hash_lookup (htab, "__ehdr_start", FALSE, FALSE, TRUE);
1708
1709 /* Only adjust the export class if the symbol was referenced
1710 and not defined, otherwise leave it alone. */
1711 if (h != NULL
1712 && (h->root.type == bfd_link_hash_new
1713 || h->root.type == bfd_link_hash_undefined
1714 || h->root.type == bfd_link_hash_undefweak
1715 || h->root.type == bfd_link_hash_common))
1716 {
1717 const struct elf_backend_data *bed;
1718 bed = get_elf_backend_data (link_info.output_bfd);
1719 (*bed->elf_backend_hide_symbol) (&link_info, h, TRUE);
1720 if (ELF_ST_VISIBILITY (h->other) != STV_INTERNAL)
1721 h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN;
1722 /* Don't leave the symbol undefined. Undefined hidden
1723 symbols typically won't have dynamic relocations, but
1724 we most likely will need dynamic relocations for
1725 __ehdr_start if we are building a PIE or shared
1726 library. */
772758ac
AM
1727 ehdr_start = &h->root;
1728 ehdr_start_save_type = ehdr_start->type;
1729 memcpy (ehdr_start_save_u,
1730 (char *) &ehdr_start->u + sizeof ehdr_start->u.def.next,
1731 sizeof ehdr_start_save_u);
1732 ehdr_start->type = bfd_link_hash_defined;
1733 ehdr_start->u.def.section = bfd_abs_section_ptr;
1734 ehdr_start->u.def.value = 0;
559192d8
AM
1735 }
1736 }
cde7cb01 1737
a5382c42
MR
1738 /* If we are going to make any variable assignments, we need to
1739 let the ELF backend know about them in case the variables are
1740 referred to by dynamic objects. */
1741 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
1742 }
252b5132
RH
1743
1744 /* Let the ELF backend work out the sizes of any sections required
1745 by dynamic linking. */
1746 rpath = command_line.rpath;
1747 if (rpath == NULL)
1748 rpath = (const char *) getenv ("LD_RUN_PATH");
7ee314fa 1749
c72f2fb2 1750 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link.next)
8dd881b6
L
1751 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1752 {
1753 const char *audit_libs = elf_dt_audit (abfd);
7ee314fa 1754
4724d37e 1755 /* If the input bfd contains an audit entry, we need to add it as
8dd881b6
L
1756 a dep audit entry. */
1757 if (audit_libs && *audit_libs != '\0')
1758 {
1759 char *cp = xstrdup (audit_libs);
1760 do
1761 {
1762 int more = 0;
1763 char *cp2 = strchr (cp, config.rpath_separator);
7ee314fa 1764
8dd881b6
L
1765 if (cp2)
1766 {
1767 *cp2 = '\0';
1768 more = 1;
1769 }
7ee314fa 1770
8dd881b6
L
1771 if (cp != NULL && *cp != '\0')
1772 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp);
1773
1774 cp = more ? ++cp2 : NULL;
1775 }
1776 while (cp != NULL);
1777 }
1778 }
7ee314fa 1779
5a580b3a 1780 if (! (bfd_elf_size_dynamic_sections
f13a99db 1781 (link_info.output_bfd, command_line.soname, rpath,
7ee314fa 1782 command_line.filter_shlib, audit, depaudit,
252b5132 1783 (const char * const *) command_line.auxiliary_filters,
fd91d419 1784 &link_info, &sinterp)))
df5f2391 1785 einfo (_("%F%P: failed to set dynamic section sizes: %E\n"));
8423293d 1786
57e6abd2 1787${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
1788 /* Let the user override the dynamic linker we are using. */
1789 if (command_line.interpreter != NULL
1790 && sinterp != NULL)
1791 {
1792 sinterp->contents = (bfd_byte *) command_line.interpreter;
eea6121a 1793 sinterp->size = strlen (command_line.interpreter) + 1;
252b5132
RH
1794 }
1795
1796 /* Look for any sections named .gnu.warning. As a GNU extensions,
1797 we treat such sections as containing warning messages. We print
1798 out the warning message, and then zero out the section size so
1799 that it does not get copied into the output file. */
1800
1801 {
1802 LANG_FOR_EACH_INPUT_STATEMENT (is)
1803 {
1804 asection *s;
1805 bfd_size_type sz;
1806 char *msg;
252b5132 1807
66be1055 1808 if (is->flags.just_syms)
252b5132
RH
1809 continue;
1810
1811 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
1812 if (s == NULL)
1813 continue;
1814
eea6121a 1815 sz = s->size;
1e9cc1c2 1816 msg = (char *) xmalloc ((size_t) (sz + 1));
bc251d50 1817 if (! bfd_get_section_contents (is->the_bfd, s, msg,
8c675694 1818 (file_ptr) 0, sz))
df5f2391 1819 einfo (_("%F%P: %pB: can't read contents of section .gnu.warning: %E\n"),
252b5132 1820 is->the_bfd);
bc251d50 1821 msg[sz] = '\0';
1a72702b
AM
1822 (*link_info.callbacks->warning) (&link_info, msg,
1823 (const char *) NULL, is->the_bfd,
1824 (asection *) NULL, (bfd_vma) 0);
252b5132
RH
1825 free (msg);
1826
9e3be61d
AM
1827 /* Clobber the section size, so that we don't waste space
1828 copying the warning into the output file. If we've already
1829 sized the output section, adjust its size. The adjustment
1830 is on rawsize because targets that size sections early will
1831 have called lang_reset_memory_regions after sizing. */
1832 if (s->output_section != NULL
1833 && s->output_section->rawsize >= s->size)
1834 s->output_section->rawsize -= s->size;
1835
eea6121a 1836 s->size = 0;
11d2f718 1837
9e3be61d
AM
1838 /* Also set SEC_EXCLUDE, so that local symbols defined in the
1839 warning section don't get copied to the output. */
a14a5de3 1840 s->flags |= SEC_EXCLUDE | SEC_KEEP;
252b5132
RH
1841 }
1842 }
8423293d 1843
1e035701 1844 before_allocation_default ();
8423293d 1845
f13a99db 1846 if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info))
df5f2391 1847 einfo (_("%F%P: failed to set dynamic section sizes: %E\n"));
4199e3b8
AM
1848
1849 if (ehdr_start != NULL)
1850 {
1851 /* If we twiddled __ehdr_start to defined earlier, put it back
1852 as it was. */
772758ac
AM
1853 ehdr_start->type = ehdr_start_save_type;
1854 memcpy ((char *) &ehdr_start->u + sizeof ehdr_start->u.def.next,
1855 ehdr_start_save_u,
1856 sizeof ehdr_start_save_u);
4199e3b8 1857 }
252b5132
RH
1858}
1859
41392f03
AM
1860EOF
1861fi
1862
1863if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
92b93329 1864fragment <<EOF
252b5132 1865
04925e1e
AM
1866/* Try to open a dynamic archive. This is where we know that ELF
1867 dynamic libraries have an extension of .so (or .sl on oddball systems
1868 like hpux). */
1869
b34976b6 1870static bfd_boolean
0c7a8e5a
AM
1871gld${EMULATION_NAME}_open_dynamic_archive
1872 (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
252b5132 1873{
04925e1e
AM
1874 const char *filename;
1875 char *string;
d4ae5fb0
AM
1876 size_t len;
1877 bfd_boolean opened = FALSE;
252b5132 1878
66be1055 1879 if (! entry->flags.maybe_archive)
b34976b6 1880 return FALSE;
252b5132 1881
04925e1e 1882 filename = entry->filename;
d4ae5fb0
AM
1883 len = strlen (search->name) + strlen (filename);
1884 if (entry->flags.full_name_provided)
1885 {
1886 len += sizeof "/";
1887 string = (char *) xmalloc (len);
1888 sprintf (string, "%s/%s", search->name, filename);
1889 }
1890 else
1891 {
1892 size_t xlen = 0;
252b5132 1893
d4ae5fb0 1894 len += strlen (arch) + sizeof "/lib.so";
04925e1e 1895#ifdef EXTRA_SHLIB_EXTENSION
d4ae5fb0
AM
1896 xlen = (strlen (EXTRA_SHLIB_EXTENSION) > 3
1897 ? strlen (EXTRA_SHLIB_EXTENSION) - 3
1898 : 0);
04925e1e 1899#endif
d4ae5fb0
AM
1900 string = (char *) xmalloc (len + xlen);
1901 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
04925e1e 1902#ifdef EXTRA_SHLIB_EXTENSION
d4ae5fb0
AM
1903 /* Try the .so extension first. If that fails build a new filename
1904 using EXTRA_SHLIB_EXTENSION. */
1905 opened = ldfile_try_open_bfd (string, entry);
1906 if (!opened)
1907 strcpy (string + len - 4, EXTRA_SHLIB_EXTENSION);
04925e1e 1908#endif
d4ae5fb0 1909 }
04925e1e 1910
d4ae5fb0 1911 if (!opened && !ldfile_try_open_bfd (string, entry))
252b5132 1912 {
04925e1e 1913 free (string);
b34976b6 1914 return FALSE;
04925e1e 1915 }
252b5132 1916
04925e1e 1917 entry->filename = string;
252b5132 1918
04925e1e
AM
1919 /* We have found a dynamic object to include in the link. The ELF
1920 backend linker will create a DT_NEEDED entry in the .dynamic
1921 section naming this file. If this file includes a DT_SONAME
1922 entry, it will be used. Otherwise, the ELF linker will just use
1923 the name of the file. For an archive found by searching, like
1924 this one, the DT_NEEDED entry should consist of just the name of
1925 the file, without the path information used to find it. Note
1926 that we only need to do this if we have a dynamic object; an
1927 archive will never be referenced by a DT_NEEDED entry.
252b5132 1928
04925e1e
AM
1929 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
1930 very pretty. I haven't been able to think of anything that is
1931 pretty, though. */
1932 if (bfd_check_format (entry->the_bfd, bfd_object)
1933 && (entry->the_bfd->flags & DYNAMIC) != 0)
1934 {
66be1055 1935 ASSERT (entry->flags.maybe_archive && entry->flags.search_dirs);
252b5132 1936
04925e1e 1937 /* Rather than duplicating the logic above. Just use the
1c9acd94 1938 filename we recorded earlier. */
04925e1e 1939
d4ae5fb0 1940 if (!entry->flags.full_name_provided)
559192d8 1941 filename = lbasename (entry->filename);
1c9acd94 1942 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
1943 }
1944
b34976b6 1945 return TRUE;
04925e1e
AM
1946}
1947
41392f03
AM
1948EOF
1949fi
cde43e70
AM
1950
1951if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
92b93329 1952fragment <<EOF
41392f03 1953
afd7a018 1954/* A variant of lang_output_section_find used by place_orphan. */
04925e1e 1955
04925e1e 1956static lang_output_section_statement_type *
8fd04a42 1957output_rel_find (int isdyn, int rela)
04925e1e 1958{
04925e1e 1959 lang_output_section_statement_type *lookup;
ba493122 1960 lang_output_section_statement_type *last = NULL;
2a36a117 1961 lang_output_section_statement_type *last_alloc = NULL;
48f2ff54 1962 lang_output_section_statement_type *last_ro_alloc = NULL;
ba493122
AM
1963 lang_output_section_statement_type *last_rel = NULL;
1964 lang_output_section_statement_type *last_rel_alloc = NULL;
04925e1e 1965
afd7a018
AM
1966 for (lookup = &lang_output_section_statement.head->output_section_statement;
1967 lookup != NULL;
1968 lookup = lookup->next)
04925e1e 1969 {
66c103b7 1970 if (lookup->constraint >= 0
0112cd26 1971 && CONST_STRNEQ (lookup->name, ".rel"))
04925e1e 1972 {
24cdb50a 1973 int lookrela = lookup->name[4] == 'a';
ba493122 1974
2a36a117
AM
1975 /* .rel.dyn must come before all other reloc sections, to suit
1976 GNU ld.so. */
1977 if (isdyn)
1978 break;
1979
1980 /* Don't place after .rel.plt as doing so results in wrong
1981 dynamic tags. */
1982 if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
ba493122 1983 break;
2a36a117
AM
1984
1985 if (rela == lookrela || last_rel == NULL)
24cdb50a 1986 last_rel = lookup;
2a36a117
AM
1987 if ((rela == lookrela || last_rel_alloc == NULL)
1988 && lookup->bfd_section != NULL
ba493122
AM
1989 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1990 last_rel_alloc = lookup;
04925e1e 1991 }
2a36a117
AM
1992
1993 last = lookup;
1994 if (lookup->bfd_section != NULL
1995 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
48f2ff54
AM
1996 {
1997 last_alloc = lookup;
1998 if ((lookup->bfd_section->flags & SEC_READONLY) != 0)
1999 last_ro_alloc = lookup;
2000 }
252b5132 2001 }
ba493122
AM
2002
2003 if (last_rel_alloc)
2004 return last_rel_alloc;
2005
2006 if (last_rel)
2007 return last_rel;
2008
48f2ff54
AM
2009 if (last_ro_alloc)
2010 return last_ro_alloc;
2011
2a36a117
AM
2012 if (last_alloc)
2013 return last_alloc;
2014
ba493122 2015 return last;
252b5132
RH
2016}
2017
2e9246e0
AM
2018/* Return whether IN is suitable to be part of OUT. */
2019
2020static bfd_boolean
2021elf_orphan_compatible (asection *in, asection *out)
2022{
2023 /* Non-zero sh_info implies a section with SHF_INFO_LINK with
2024 unknown semantics for the generic linker, or a SHT_REL/SHT_RELA
2025 section where sh_info specifies a symbol table. (We won't see
2026 SHT_GROUP, SHT_SYMTAB or SHT_DYNSYM sections here.) We clearly
2027 can't merge SHT_REL/SHT_RELA using differing symbol tables, and
2028 shouldn't merge sections with differing unknown semantics. */
2029 if (elf_section_data (out)->this_hdr.sh_info
2030 != elf_section_data (in)->this_hdr.sh_info)
2031 return FALSE;
2032 /* We can't merge two sections with differing SHF_EXCLUDE when doing
2033 a relocatable link. */
2034 if (bfd_link_relocatable (&link_info)
2035 && ((elf_section_flags (out) ^ elf_section_flags (in)) & SHF_EXCLUDE) != 0)
2036 return FALSE;
2037 return _bfd_elf_match_sections_by_type (link_info.output_bfd, out,
2038 in->owner, in);
2039}
2040
252b5132
RH
2041/* Place an orphan section. We use this to put random SHF_ALLOC
2042 sections in the right segment. */
2043
c2edb4b8 2044static lang_output_section_statement_type *
8a99a385
AM
2045gld${EMULATION_NAME}_place_orphan (asection *s,
2046 const char *secname,
2047 int constraint)
252b5132 2048{
afd7a018
AM
2049 static struct orphan_save hold[] =
2050 {
2051 { ".text",
2052 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
2053 0, 0, 0, 0 },
2054 { ".rodata",
2055 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2056 0, 0, 0, 0 },
d85e71fe
L
2057 { ".tdata",
2058 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_THREAD_LOCAL,
2059 0, 0, 0, 0 },
afd7a018
AM
2060 { ".data",
2061 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
2062 0, 0, 0, 0 },
2063 { ".bss",
2064 SEC_ALLOC,
2065 0, 0, 0, 0 },
2066 { 0,
2067 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2068 0, 0, 0, 0 },
2069 { ".interp",
2070 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
2071 0, 0, 0, 0 },
2072 { ".sdata",
2073 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
07890c07 2074 0, 0, 0, 0 },
175b7cd4 2075 { ".comment",
07890c07
AM
2076 SEC_HAS_CONTENTS,
2077 0, 0, 0, 0 },
afd7a018
AM
2078 };
2079 enum orphan_save_index
2080 {
2081 orphan_text = 0,
2082 orphan_rodata,
d85e71fe 2083 orphan_tdata,
afd7a018
AM
2084 orphan_data,
2085 orphan_bss,
2086 orphan_rel,
2087 orphan_interp,
07890c07
AM
2088 orphan_sdata,
2089 orphan_nonalloc
afd7a018
AM
2090 };
2091 static int orphan_init_done = 0;
6a345e87 2092 struct orphan_save *place;
afd7a018 2093 lang_output_section_statement_type *after;
252b5132 2094 lang_output_section_statement_type *os;
b5f14a6d 2095 lang_output_section_statement_type *match_by_name = NULL;
24cdb50a 2096 int isdyn = 0;
2e9246e0
AM
2097 int elfinput = s->owner->xvec->flavour == bfd_target_elf_flavour;
2098 int elfoutput = link_info.output_bfd->xvec->flavour == bfd_target_elf_flavour;
2099 unsigned int sh_type = elfinput ? elf_section_type (s) : SHT_NULL;
199af150
AM
2100 flagword flags;
2101 asection *nexts;
252b5132 2102
0e1862bb 2103 if (!bfd_link_relocatable (&link_info)
24cdb50a 2104 && link_info.combreloc
ecca9871 2105 && (s->flags & SEC_ALLOC))
24cdb50a 2106 {
2e9246e0 2107 if (elfinput)
ecca9871
L
2108 switch (sh_type)
2109 {
2110 case SHT_RELA:
2111 secname = ".rela.dyn";
2112 isdyn = 1;
2113 break;
2114 case SHT_REL:
2115 secname = ".rel.dyn";
2116 isdyn = 1;
2117 break;
2118 default:
2119 break;
2120 }
0112cd26 2121 else if (CONST_STRNEQ (secname, ".rel"))
ecca9871
L
2122 {
2123 secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn";
2124 isdyn = 1;
2125 }
24cdb50a 2126 }
aea4bd9d 2127
a91e1603 2128 if (!bfd_link_relocatable (&link_info)
2e9246e0
AM
2129 && elfinput
2130 && elfoutput
a91e1603
L
2131 && (s->flags & SEC_ALLOC) != 0
2132 && (elf_section_flags (s) & SHF_GNU_MBIND) != 0)
2133 {
2134 /* Find the output mbind section with the same type, attributes
2135 and sh_info field. */
2136 for (os = &lang_output_section_statement.head->output_section_statement;
2137 os != NULL;
2138 os = os->next)
2139 if (os->bfd_section != NULL
2140 && !bfd_is_abs_section (os->bfd_section)
2141 && (elf_section_flags (os->bfd_section) & SHF_GNU_MBIND) != 0
2142 && ((s->flags & (SEC_ALLOC
2143 | SEC_LOAD
2144 | SEC_HAS_CONTENTS
2145 | SEC_READONLY
2146 | SEC_CODE))
2147 == (os->bfd_section->flags & (SEC_ALLOC
2148 | SEC_LOAD
2149 | SEC_HAS_CONTENTS
2150 | SEC_READONLY
2151 | SEC_CODE)))
2152 && (elf_section_data (os->bfd_section)->this_hdr.sh_info
2153 == elf_section_data (s)->this_hdr.sh_info))
2154 {
2155 lang_add_section (&os->children, s, NULL, os);
2156 return os;
2157 }
2158
2159 /* Create the output mbind section with the ".mbind." prefix
2160 in section name. */
2161 if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
2162 secname = ".mbind.bss";
2163 else if ((s->flags & SEC_READONLY) == 0)
2164 secname = ".mbind.data";
2165 else if ((s->flags & SEC_CODE) == 0)
2166 secname = ".mbind.rodata";
2167 else
2168 secname = ".mbind.text";
2169 }
2170
2e9246e0
AM
2171 /* Look through the script to see where to place this section. The
2172 script includes entries added by previous lang_insert_orphan
2173 calls, so this loop puts multiple compatible orphans of the same
2174 name into a single output section. */
2175 if (constraint == 0)
d127ecce
AM
2176 for (os = lang_output_section_find (secname);
2177 os != NULL;
2178 os = next_matching_output_section_statement (os, 0))
2179 {
2180 /* If we don't match an existing output section, tell
2181 lang_insert_orphan to create a new output section. */
2182 constraint = SPECIAL;
2183
2e9246e0
AM
2184 /* Check to see if we already have an output section statement
2185 with this name, and its bfd section has compatible flags.
2186 If the section already exists but does not have any flags
2187 set, then it has been created by the linker, possibly as a
2188 result of a --section-start command line switch. */
d127ecce
AM
2189 if (os->bfd_section != NULL
2190 && (os->bfd_section->flags == 0
2e9246e0 2191 || (((s->flags ^ os->bfd_section->flags)
199af150 2192 & (SEC_LOAD | SEC_ALLOC)) == 0
2e9246e0
AM
2193 && (!elfinput
2194 || !elfoutput
2195 || elf_orphan_compatible (s, os->bfd_section)))))
d127ecce 2196 {
b9c361e0 2197 lang_add_section (&os->children, s, NULL, os);
d127ecce
AM
2198 return os;
2199 }
b5f14a6d
DD
2200
2201 /* Save unused output sections in case we can match them
2202 against orphans later. */
2203 if (os->bfd_section == NULL)
2204 match_by_name = os;
d127ecce 2205 }
252b5132 2206
b5f14a6d
DD
2207 /* If we didn't match an active output section, see if we matched an
2208 unused one and use that. */
2209 if (match_by_name)
2210 {
b9c361e0 2211 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
b5f14a6d
DD
2212 return match_by_name;
2213 }
2214
afd7a018
AM
2215 if (!orphan_init_done)
2216 {
2217 struct orphan_save *ho;
07890c07 2218
afd7a018
AM
2219 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
2220 if (ho->name != NULL)
2221 {
2222 ho->os = lang_output_section_find (ho->name);
2223 if (ho->os != NULL && ho->os->flags == 0)
2224 ho->os->flags = ho->flags;
2225 }
2226 orphan_init_done = 1;
2227 }
252b5132
RH
2228
2229 /* If this is a final link, then always put .gnu.warning.SYMBOL
2230 sections into the .text section to get them out of the way. */
0e1862bb 2231 if (bfd_link_executable (&link_info)
bcacc0f5 2232 && CONST_STRNEQ (s->name, ".gnu.warning.")
afd7a018 2233 && hold[orphan_text].os != NULL)
252b5132 2234 {
c2edb4b8 2235 os = hold[orphan_text].os;
b9c361e0 2236 lang_add_section (&os->children, s, NULL, os);
c2edb4b8 2237 return os;
252b5132
RH
2238 }
2239
077fcd6a
L
2240 flags = s->flags;
2241 if (!bfd_link_relocatable (&link_info))
2242 {
2243 nexts = s;
2244 while ((nexts = bfd_get_next_section_by_name (nexts->owner, nexts))
2245 != NULL)
2246 if (nexts->output_section == NULL
2247 && (nexts->flags & SEC_EXCLUDE) == 0
2248 && ((nexts->flags ^ flags) & (SEC_LOAD | SEC_ALLOC)) == 0
2249 && (nexts->owner->flags & DYNAMIC) == 0
2250 && nexts->owner->usrdata != NULL
2251 && !(((lang_input_statement_type *) nexts->owner->usrdata)
2252 ->flags.just_syms)
2253 && _bfd_elf_match_sections_by_type (nexts->owner, nexts,
2254 s->owner, s))
2255 flags = (((flags ^ SEC_READONLY)
2256 | (nexts->flags ^ SEC_READONLY))
2257 ^ SEC_READONLY);
2258 }
2259
252b5132
RH
2260 /* Decide which segment the section should go in based on the
2261 section name and section flags. We put loadable .note sections
2262 right after the .interp section, so that the PT_NOTE segment is
2263 stored right after the program headers where the OS can read it
2264 in the first page. */
aea4bd9d 2265
71bfc0ae 2266 place = NULL;
199af150 2267 if ((flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0)
07890c07 2268 place = &hold[orphan_nonalloc];
199af150 2269 else if ((flags & SEC_ALLOC) == 0)
71bfc0ae 2270 ;
199af150 2271 else if ((flags & SEC_LOAD) != 0
8fd04a42
AM
2272 && (elfinput
2273 ? sh_type == SHT_NOTE
2274 : CONST_STRNEQ (secname, ".note")))
afd7a018 2275 place = &hold[orphan_interp];
199af150 2276 else if ((flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0)
afd7a018 2277 place = &hold[orphan_bss];
199af150 2278 else if ((flags & SEC_SMALL_DATA) != 0)
afd7a018 2279 place = &hold[orphan_sdata];
199af150 2280 else if ((flags & SEC_THREAD_LOCAL) != 0)
d85e71fe 2281 place = &hold[orphan_tdata];
199af150 2282 else if ((flags & SEC_READONLY) == 0)
afd7a018 2283 place = &hold[orphan_data];
8fd04a42
AM
2284 else if ((flags & SEC_LOAD) != 0
2285 && (elfinput
2286 ? sh_type == SHT_RELA || sh_type == SHT_REL
2287 : CONST_STRNEQ (secname, ".rel")))
afd7a018 2288 place = &hold[orphan_rel];
199af150 2289 else if ((flags & SEC_CODE) == 0)
afd7a018
AM
2290 place = &hold[orphan_rodata];
2291 else
2292 place = &hold[orphan_text];
71bfc0ae 2293
afd7a018 2294 after = NULL;
5ba47421 2295 if (place != NULL)
252b5132 2296 {
afd7a018 2297 if (place->os == NULL)
5ba47421 2298 {
afd7a018
AM
2299 if (place->name != NULL)
2300 place->os = lang_output_section_find (place->name);
2301 else
8fd04a42
AM
2302 {
2303 int rela = elfinput ? sh_type == SHT_RELA : secname[4] == 'a';
2304 place->os = output_rel_find (isdyn, rela);
2305 }
5ba47421 2306 }
afd7a018
AM
2307 after = place->os;
2308 if (after == NULL)
93638471
AM
2309 after
2310 = lang_output_section_find_by_flags (s, flags, &place->os,
2311 _bfd_elf_match_sections_by_type);
afd7a018
AM
2312 if (after == NULL)
2313 /* *ABS* is always the first output section statement. */
2314 after = &lang_output_section_statement.head->output_section_statement;
252b5132
RH
2315 }
2316
c2edb4b8 2317 return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL);
252b5132 2318}
c56feb2b
AM
2319EOF
2320fi
2321
eaeb0a9d 2322if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then
92b93329 2323fragment <<EOF
252b5132 2324
deb04cdb 2325static void
eaeb0a9d 2326gld${EMULATION_NAME}_after_allocation (void)
deb04cdb 2327{
75938853
AM
2328 int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info);
2329
2330 if (need_layout < 0)
d003af55 2331 einfo (_("%X%P: .eh_frame/.stab edit: %E\n"));
75938853
AM
2332 else
2333 gld${EMULATION_NAME}_map_segments (need_layout);
73d074b4 2334}
41392f03
AM
2335EOF
2336fi
2337
2338if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
92b93329 2339fragment <<EOF
252b5132
RH
2340
2341static char *
0c7a8e5a 2342gld${EMULATION_NAME}_get_script (int *isfile)
252b5132
RH
2343EOF
2344
7225345d 2345if test x"$COMPILE_IN" = xyes
252b5132
RH
2346then
2347# Scripts compiled in.
2348
2349# sed commands to quote an ld script as a C string.
597e2591 2350sc="-f stringify.sed"
252b5132 2351
92b93329 2352fragment <<EOF
60bcf0fa 2353{
252b5132
RH
2354 *isfile = 0;
2355
0e1862bb 2356 if (bfd_link_relocatable (&link_info) && config.build_constructors)
597e2591 2357 return
252b5132 2358EOF
afd7a018 2359sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
0e1862bb 2360echo ' ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018
AM
2361sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2362echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2363sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
61585df2 2364if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
afd7a018
AM
2365echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2366sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 2367fi
36af4a4e
JJ
2368if test -n "$GENERATE_PIE_SCRIPT" ; then
2369if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
0e1862bb
L
2370echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2371echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
47acac12
L
2372echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2373echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
2374sed $sc ldscripts/${EMULATION_NAME}.xdwe >> e${EMULATION_NAME}.c
2375echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2376echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
0e1862bb 2377echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2378echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2379sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
a3813728
AK
2380if test -n "$GENERATE_RELRO_SCRIPT" ; then
2381echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2382echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
2383echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2384echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2385sed $sc ldscripts/${EMULATION_NAME}.xdceo >> e${EMULATION_NAME}.c
2386fi
0e1862bb 2387echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
47acac12
L
2388echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2389echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
2390sed $sc ldscripts/${EMULATION_NAME}.xdce >> e${EMULATION_NAME}.c
a3813728
AK
2391if test -n "$GENERATE_RELRO_SCRIPT" ; then
2392echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2393echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
2394echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2395sed $sc ldscripts/${EMULATION_NAME}.xdco >> e${EMULATION_NAME}.c
2396fi
47acac12 2397echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
0e1862bb 2398echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2399sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
a3813728
AK
2400if test -n "$GENERATE_RELRO_SCRIPT" ; then
2401echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2402echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2403echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2404sed $sc ldscripts/${EMULATION_NAME}.xdeo >> e${EMULATION_NAME}.c
2405fi
36af4a4e 2406fi
47acac12
L
2407echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2408echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
2409sed $sc ldscripts/${EMULATION_NAME}.xde >> e${EMULATION_NAME}.c
a3813728
AK
2410if test -n "$GENERATE_RELRO_SCRIPT" ; then
2411echo ' ; else if (bfd_link_pie (&link_info)' >> e${EMULATION_NAME}.c
2412echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2413sed $sc ldscripts/${EMULATION_NAME}.xdo >> e${EMULATION_NAME}.c
2414fi
0e1862bb 2415echo ' ; else if (bfd_link_pie (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018 2416sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
36af4a4e 2417fi
252b5132 2418if test -n "$GENERATE_SHLIB_SCRIPT" ; then
82434356 2419if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
fb24d531
L
2420echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
2421echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
47acac12
L
2422echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2423echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
2424sed $sc ldscripts/${EMULATION_NAME}.xswe >> e${EMULATION_NAME}.c
2425echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
2426echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
fb24d531 2427echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2428echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2429sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
a3813728
AK
2430if test -n "$GENERATE_RELRO_SCRIPT" ; then
2431echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
2432echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
2433echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2434echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2435sed $sc ldscripts/${EMULATION_NAME}.xsceo >> e${EMULATION_NAME}.c
2436fi
fb24d531 2437echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
47acac12
L
2438echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
2439echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
2440sed $sc ldscripts/${EMULATION_NAME}.xsce >> e${EMULATION_NAME}.c
a3813728
AK
2441if test -n "$GENERATE_RELRO_SCRIPT" ; then
2442echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
2443echo ' && link_info.combreloc' >> e${EMULATION_NAME}.c
2444echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2445sed $sc ldscripts/${EMULATION_NAME}.xsco >> e${EMULATION_NAME}.c
2446fi
47acac12 2447echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
fb24d531 2448echo ' && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2449sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
a3813728
AK
2450if test -n "$GENERATE_RELRO_SCRIPT" ; then
2451echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
2452echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2453echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2454sed $sc ldscripts/${EMULATION_NAME}.xseo >> e${EMULATION_NAME}.c
2455fi
82434356 2456fi
47acac12
L
2457echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
2458echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
2459sed $sc ldscripts/${EMULATION_NAME}.xse >> e${EMULATION_NAME}.c
a3813728
AK
2460if test -n "$GENERATE_RELRO_SCRIPT" ; then
2461echo ' ; else if (bfd_link_dll (&link_info)' >> e${EMULATION_NAME}.c
2462echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2463sed $sc ldscripts/${EMULATION_NAME}.xso >> e${EMULATION_NAME}.c
2464fi
0e1862bb 2465echo ' ; else if (bfd_link_dll (&link_info)) return' >> e${EMULATION_NAME}.c
afd7a018 2466sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 2467fi
82434356 2468if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
fb24d531 2469echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
47acac12
L
2470echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2471echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
2472sed $sc ldscripts/${EMULATION_NAME}.xwe >> e${EMULATION_NAME}.c
2473echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
fb24d531 2474echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2475echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2476sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
a3813728
AK
2477if test -n "$GENERATE_RELRO_SCRIPT" ; then
2478echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
2479echo ' && link_info.separate_code' >> e${EMULATION_NAME}.c
2480echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2481sed $sc ldscripts/${EMULATION_NAME}.xceo >> e${EMULATION_NAME}.c
2482fi
47acac12
L
2483echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
2484echo ' && link_info.separate_code) return' >> e${EMULATION_NAME}.c
2485sed $sc ldscripts/${EMULATION_NAME}.xce >> e${EMULATION_NAME}.c
a3813728
AK
2486if test -n "$GENERATE_RELRO_SCRIPT" ; then
2487echo ' ; else if (link_info.combreloc' >> e${EMULATION_NAME}.c
2488echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2489sed $sc ldscripts/${EMULATION_NAME}.xco >> e${EMULATION_NAME}.c
2490fi
afd7a018
AM
2491echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
2492sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
82434356 2493fi
a3813728
AK
2494if test -n "$GENERATE_RELRO_SCRIPT" ; then
2495echo ' ; else if (link_info.separate_code' >> e${EMULATION_NAME}.c
2496echo ' && link_info.relro) return' >> e${EMULATION_NAME}.c
2497sed $sc ldscripts/${EMULATION_NAME}.xeo >> e${EMULATION_NAME}.c
2498fi
2499echo ' ; else if (link_info.separate_code) return' >> e${EMULATION_NAME}.c
47acac12 2500sed $sc ldscripts/${EMULATION_NAME}.xe >> e${EMULATION_NAME}.c
a3813728
AK
2501if test -n "$GENERATE_RELRO_SCRIPT" ; then
2502echo ' ; else if (link_info.relro) return' >> e${EMULATION_NAME}.c
2503sed $sc ldscripts/${EMULATION_NAME}.xo >> e${EMULATION_NAME}.c
2504fi
afd7a018
AM
2505echo ' ; else return' >> e${EMULATION_NAME}.c
2506sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2507echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
2508
2509else
2510# Scripts read from the filesystem.
2511
92b93329 2512fragment <<EOF
60bcf0fa 2513{
252b5132
RH
2514 *isfile = 1;
2515
0e1862bb 2516 if (bfd_link_relocatable (&link_info) && config.build_constructors)
252b5132 2517 return "ldscripts/${EMULATION_NAME}.xu";
0e1862bb 2518 else if (bfd_link_relocatable (&link_info))
252b5132
RH
2519 return "ldscripts/${EMULATION_NAME}.xr";
2520 else if (!config.text_read_only)
2521 return "ldscripts/${EMULATION_NAME}.xbn";
a060b769
AM
2522EOF
2523if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
2524else
92b93329 2525fragment <<EOF
252b5132
RH
2526 else if (!config.magic_demand_paged)
2527 return "ldscripts/${EMULATION_NAME}.xn";
a060b769
AM
2528EOF
2529fi
36af4a4e
JJ
2530if test -n "$GENERATE_PIE_SCRIPT" ; then
2531if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2532fragment <<EOF
0e1862bb
L
2533 else if (bfd_link_pie (&link_info)
2534 && link_info.combreloc
2535 && link_info.relro
2536 && (link_info.flags & DF_BIND_NOW))
47acac12
L
2537 {
2538 if (link_info.separate_code)
2539 return "ldscripts/${EMULATION_NAME}.xdwe";
2540 else
2541 return "ldscripts/${EMULATION_NAME}.xdw";
2542 }
a3813728
AK
2543EOF
2544if test -n "$GENERATE_RELRO_SCRIPT" ; then
2545fragment <<EOF
2546 else if (bfd_link_pie (&link_info)
2547 && link_info.combreloc
2548 && link_info.relro)
2549 {
2550 if (link_info.separate_code)
2551 return "ldscripts/${EMULATION_NAME}.xdceo";
2552 else
2553 return "ldscripts/${EMULATION_NAME}.xdco";
2554 }
2555EOF
2556fi
2557fragment <<EOF
0e1862bb
L
2558 else if (bfd_link_pie (&link_info)
2559 && link_info.combreloc)
47acac12
L
2560 {
2561 if (link_info.separate_code)
2562 return "ldscripts/${EMULATION_NAME}.xdce";
2563 else
2564 return "ldscripts/${EMULATION_NAME}.xdc";
2565 }
36af4a4e
JJ
2566EOF
2567fi
a3813728
AK
2568if test -n "$GENERATE_RELRO_SCRIPT" ; then
2569fragment <<EOF
2570 else if (bfd_link_pie (&link_info)
2571 && link_info.relro)
2572 {
2573 if (link_info.separate_code)
2574 return "ldscripts/${EMULATION_NAME}.xdeo";
2575 else
2576 return "ldscripts/${EMULATION_NAME}.xdo";
2577 }
2578EOF
2579fi
92b93329 2580fragment <<EOF
0e1862bb 2581 else if (bfd_link_pie (&link_info))
47acac12
L
2582 {
2583 if (link_info.separate_code)
2584 return "ldscripts/${EMULATION_NAME}.xde";
2585 else
2586 return "ldscripts/${EMULATION_NAME}.xd";
2587 }
36af4a4e
JJ
2588EOF
2589fi
a060b769
AM
2590if test -n "$GENERATE_SHLIB_SCRIPT" ; then
2591if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2592fragment <<EOF
0e1862bb 2593 else if (bfd_link_dll (&link_info) && link_info.combreloc
fbfca19e 2594 && link_info.relro && (link_info.flags & DF_BIND_NOW))
47acac12
L
2595 {
2596 if (link_info.separate_code)
2597 return "ldscripts/${EMULATION_NAME}.xswe";
2598 else
2599 return "ldscripts/${EMULATION_NAME}.xsw";
2600 }
a3813728
AK
2601EOF
2602if test -n "$GENERATE_RELRO_SCRIPT" ; then
2603fragment <<EOF
2604 else if (bfd_link_dll (&link_info)
2605 && link_info.combreloc
2606 && link_info.relro)
2607 {
2608 if (link_info.separate_code)
2609 return "ldscripts/${EMULATION_NAME}.xsceo";
2610 else
2611 return "ldscripts/${EMULATION_NAME}.xsco";
2612 }
2613EOF
2614fi
2615fragment <<EOF
0e1862bb 2616 else if (bfd_link_dll (&link_info) && link_info.combreloc)
47acac12
L
2617 {
2618 if (link_info.separate_code)
2619 return "ldscripts/${EMULATION_NAME}.xsce";
2620 else
2621 return "ldscripts/${EMULATION_NAME}.xsc";
2622 }
a060b769
AM
2623EOF
2624fi
a3813728
AK
2625if test -n "$GENERATE_RELRO_SCRIPT" ; then
2626fragment <<EOF
2627 else if (bfd_link_dll (&link_info)
2628 && link_info.relro)
2629 {
2630 if (link_info.separate_code)
2631 return "ldscripts/${EMULATION_NAME}.xseo";
2632 else
2633 return "ldscripts/${EMULATION_NAME}.xso";
2634 }
2635EOF
2636fi
92b93329 2637fragment <<EOF
0e1862bb 2638 else if (bfd_link_dll (&link_info))
47acac12
L
2639 {
2640 if (link_info.separate_code)
2641 return "ldscripts/${EMULATION_NAME}.xse";
2642 else
2643 return "ldscripts/${EMULATION_NAME}.xs";
2644 }
a060b769
AM
2645EOF
2646fi
2647if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2648fragment <<EOF
8c37241b 2649 else if (link_info.combreloc && link_info.relro
fbfca19e 2650 && (link_info.flags & DF_BIND_NOW))
47acac12
L
2651 {
2652 if (link_info.separate_code)
2653 return "ldscripts/${EMULATION_NAME}.xwe";
2654 else
2655 return "ldscripts/${EMULATION_NAME}.xw";
2656 }
a3813728
AK
2657EOF
2658if test -n "$GENERATE_RELRO_SCRIPT" ; then
2659fragment <<EOF
2660 else if (link_info.combreloc
2661 && link_info.relro)
2662 {
2663 if (link_info.separate_code)
2664 return "ldscripts/${EMULATION_NAME}.xceo";
2665 else
2666 return "ldscripts/${EMULATION_NAME}.xco";
2667 }
2668EOF
2669fi
2670fragment <<EOF
a060b769 2671 else if (link_info.combreloc)
47acac12
L
2672 {
2673 if (link_info.separate_code)
2674 return "ldscripts/${EMULATION_NAME}.xce";
2675 else
2676 return "ldscripts/${EMULATION_NAME}.xc";
2677 }
a060b769
AM
2678EOF
2679fi
a3813728
AK
2680if test -n "$GENERATE_RELRO_SCRIPT" ; then
2681fragment <<EOF
2682 else if (link_info.relro)
2683 {
2684 if (link_info.separate_code)
2685 return "ldscripts/${EMULATION_NAME}.xeo";
2686 else
2687 return "ldscripts/${EMULATION_NAME}.xo";
2688 }
2689EOF
2690fi
92b93329 2691fragment <<EOF
252b5132 2692 else
47acac12
L
2693 {
2694 if (link_info.separate_code)
2695 return "ldscripts/${EMULATION_NAME}.xe";
2696 else
2697 return "ldscripts/${EMULATION_NAME}.x";
2698 }
252b5132 2699}
252b5132 2700
3b108066 2701EOF
41392f03
AM
2702fi
2703fi
3b108066 2704
e0ee487b 2705if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
92b93329 2706fragment <<EOF
e0ee487b
L
2707 $PARSE_AND_LIST_PROLOGUE
2708EOF
2709fi
2710
92b93329 2711fragment <<EOF
e0ee487b 2712
29063f8b
NC
2713enum elf_options
2714{
2715 OPTION_DISABLE_NEW_DTAGS = 400,
2716 OPTION_ENABLE_NEW_DTAGS,
2717 OPTION_GROUP,
2718 OPTION_EH_FRAME_HDR,
2719 OPTION_NO_EH_FRAME_HDR,
2720 OPTION_EXCLUDE_LIBS,
2721 OPTION_HASH_STYLE,
2722 OPTION_BUILD_ID,
2723 OPTION_AUDIT,
2724 OPTION_COMPRESS_DEBUG
2725};
e13629bc 2726
3bcf5557 2727static void
0c7a8e5a
AM
2728gld${EMULATION_NAME}_add_options
2729 (int ns, char **shortopts, int nl, struct option **longopts,
2730 int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
e0ee487b 2731{
fb42df5e
AM
2732EOF
2733if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2734fragment <<EOF
7ee314fa 2735 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:";
fb42df5e
AM
2736EOF
2737else
2738fragment <<EOF
2739 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
2740EOF
2741fi
2742fragment <<EOF
3bcf5557 2743 static const struct option xtra_long[] = {
fb42df5e
AM
2744EOF
2745if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2746fragment <<EOF
7ee314fa 2747 {"audit", required_argument, NULL, OPTION_AUDIT},
fb42df5e
AM
2748 {"Bgroup", no_argument, NULL, OPTION_GROUP},
2749EOF
2750fi
2751fragment <<EOF
2752 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
0ce398f1 2753 {"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG},
e0ee487b 2754EOF
e0ee487b 2755if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2756fragment <<EOF
fb42df5e 2757 {"depaudit", required_argument, NULL, 'P'},
3bcf5557
AM
2758 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
2759 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
2760 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
29063f8b 2761 {"no-eh-frame-hdr", no_argument, NULL, OPTION_NO_EH_FRAME_HDR},
b58f81ae 2762 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
fdc90cb4 2763 {"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
e0ee487b
L
2764EOF
2765fi
e0ee487b 2766if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
92b93329 2767fragment <<EOF
3bcf5557 2768 $PARSE_AND_LIST_LONGOPTS
e0ee487b
L
2769EOF
2770fi
92b93329 2771fragment <<EOF
3bcf5557
AM
2772 {NULL, no_argument, NULL, 0}
2773 };
2774
2775 *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
2776 memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
2777 *longopts = (struct option *)
2778 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
2779 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
2780}
04925e1e 2781
24382dca 2782#define DEFAULT_BUILD_ID_STYLE "sha1"
c0065db7 2783
3bcf5557 2784static bfd_boolean
0c7a8e5a 2785gld${EMULATION_NAME}_handle_option (int optc)
e0ee487b 2786{
e0ee487b
L
2787 switch (optc)
2788 {
2789 default:
3bcf5557 2790 return FALSE;
6c1439be 2791
c0065db7 2792 case OPTION_BUILD_ID:
30e8ee25 2793 if (emit_note_gnu_build_id != NULL)
c0065db7 2794 {
30e8ee25
AM
2795 free ((char *) emit_note_gnu_build_id);
2796 emit_note_gnu_build_id = NULL;
c0065db7
RM
2797 }
2798 if (optarg == NULL)
2799 optarg = DEFAULT_BUILD_ID_STYLE;
2800 if (strcmp (optarg, "none"))
30e8ee25 2801 emit_note_gnu_build_id = xstrdup (optarg);
c0065db7 2802 break;
fb42df5e 2803
0ce398f1
L
2804 case OPTION_COMPRESS_DEBUG:
2805 if (strcasecmp (optarg, "none") == 0)
2806 link_info.compress_debug = COMPRESS_DEBUG_NONE;
2807 else if (strcasecmp (optarg, "zlib") == 0)
19a7fe52 2808 link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
0ce398f1
L
2809 else if (strcasecmp (optarg, "zlib-gnu") == 0)
2810 link_info.compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
2811 else if (strcasecmp (optarg, "zlib-gabi") == 0)
2812 link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
2813 else
df5f2391 2814 einfo (_("%F%P: invalid --compress-debug-sections option: \`%s'\n"),
0ce398f1
L
2815 optarg);
2816 break;
fb42df5e
AM
2817EOF
2818
2819if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2820fragment <<EOF
7ee314fa 2821 case OPTION_AUDIT:
4724d37e 2822 gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg);
7ee314fa 2823 break;
fb42df5e 2824
7ee314fa
AM
2825 case 'P':
2826 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg);
2827 break;
c0065db7 2828
6c1439be 2829 case OPTION_DISABLE_NEW_DTAGS:
b34976b6 2830 link_info.new_dtags = FALSE;
6c1439be
L
2831 break;
2832
2833 case OPTION_ENABLE_NEW_DTAGS:
b34976b6 2834 link_info.new_dtags = TRUE;
6c1439be
L
2835 break;
2836
65765700 2837 case OPTION_EH_FRAME_HDR:
2f0c68f2 2838 link_info.eh_frame_hdr_type = DWARF2_EH_HDR;
65765700
JJ
2839 break;
2840
29063f8b
NC
2841 case OPTION_NO_EH_FRAME_HDR:
2842 link_info.eh_frame_hdr_type = 0;
2843 break;
2844
a1ab1d2a
UD
2845 case OPTION_GROUP:
2846 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
2847 /* Groups must be self-contained. */
560e09e9
NC
2848 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2849 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
a1ab1d2a
UD
2850 break;
2851
b58f81ae
DJ
2852 case OPTION_EXCLUDE_LIBS:
2853 add_excluded_libs (optarg);
2854 break;
2855
fdc90cb4
JJ
2856 case OPTION_HASH_STYLE:
2857 link_info.emit_hash = FALSE;
2858 link_info.emit_gnu_hash = FALSE;
2859 if (strcmp (optarg, "sysv") == 0)
2860 link_info.emit_hash = TRUE;
2861 else if (strcmp (optarg, "gnu") == 0)
2862 link_info.emit_gnu_hash = TRUE;
2863 else if (strcmp (optarg, "both") == 0)
2864 {
2865 link_info.emit_hash = TRUE;
2866 link_info.emit_gnu_hash = TRUE;
2867 }
2868 else
df5f2391 2869 einfo (_("%F%P: invalid hash style \`%s'\n"), optarg);
fdc90cb4
JJ
2870 break;
2871
fb42df5e
AM
2872EOF
2873fi
2874fragment <<EOF
e0ee487b 2875 case 'z':
fb42df5e
AM
2876 if (strcmp (optarg, "defs") == 0)
2877 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
97a232d7
NC
2878 else if (strcmp (optarg, "undefs") == 0)
2879 link_info.unresolved_syms_in_objects = RM_IGNORE;
fb42df5e
AM
2880 else if (strcmp (optarg, "muldefs") == 0)
2881 link_info.allow_multiple_definition = TRUE;
2882 else if (CONST_STRNEQ (optarg, "max-page-size="))
2883 {
2884 char *end;
2885
2886 config.maxpagesize = strtoul (optarg + 14, &end, 0);
2887 if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0)
eca4b721 2888 einfo (_("%F%P: invalid maximum page size \`%s'\n"),
fb42df5e
AM
2889 optarg + 14);
2890 }
2891 else if (CONST_STRNEQ (optarg, "common-page-size="))
2892 {
2893 char *end;
2894 config.commonpagesize = strtoul (optarg + 17, &end, 0);
2895 if (*end
2896 || (config.commonpagesize & (config.commonpagesize - 1)) != 0)
df5f2391 2897 einfo (_("%F%P: invalid common page size \`%s'\n"),
fb42df5e
AM
2898 optarg + 17);
2899 }
04c3a755
NS
2900 else if (CONST_STRNEQ (optarg, "stack-size="))
2901 {
2902 char *end;
2903 link_info.stacksize = strtoul (optarg + 11, &end, 0);
2904 if (*end || link_info.stacksize < 0)
df5f2391 2905 einfo (_("%F%P: invalid stack size \`%s'\n"), optarg + 11);
04c3a755
NS
2906 if (!link_info.stacksize)
2907 /* Use -1 for explicit no-stack, because zero means
2908 'default'. */
2909 link_info.stacksize = -1;
2910 }
fb42df5e
AM
2911 else if (strcmp (optarg, "execstack") == 0)
2912 {
2913 link_info.execstack = TRUE;
2914 link_info.noexecstack = FALSE;
2915 }
2916 else if (strcmp (optarg, "noexecstack") == 0)
2917 {
2918 link_info.noexecstack = TRUE;
2919 link_info.execstack = FALSE;
2920 }
93ab9c0d
NC
2921 else if (strcmp (optarg, "globalaudit") == 0)
2922 {
2923 link_info.flags_1 |= DF_1_GLOBAUDIT;
2924 }
fb42df5e 2925EOF
d258b828 2926
fb42df5e
AM
2927if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2928fragment <<EOF
b039ef04
L
2929 else if (strcmp (optarg, "global") == 0)
2930 link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL;
fb42df5e 2931 else if (strcmp (optarg, "initfirst") == 0)
e0ee487b
L
2932 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
2933 else if (strcmp (optarg, "interpose") == 0)
2934 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
2935 else if (strcmp (optarg, "loadfltr") == 0)
2936 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
2937 else if (strcmp (optarg, "nodefaultlib") == 0)
2938 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
2939 else if (strcmp (optarg, "nodelete") == 0)
2940 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
2941 else if (strcmp (optarg, "nodlopen") == 0)
2942 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
2943 else if (strcmp (optarg, "nodump") == 0)
2944 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
2945 else if (strcmp (optarg, "now") == 0)
2946 {
2947 link_info.flags |= (bfd_vma) DF_BIND_NOW;
2948 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
2949 }
5fa222e4
AM
2950 else if (strcmp (optarg, "lazy") == 0)
2951 {
2952 link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
2953 link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
2954 }
e0ee487b
L
2955 else if (strcmp (optarg, "origin") == 0)
2956 {
2957 link_info.flags |= (bfd_vma) DF_ORIGIN;
2958 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
2959 }
db6751f2 2960 else if (strcmp (optarg, "combreloc") == 0)
b34976b6 2961 link_info.combreloc = TRUE;
db6751f2 2962 else if (strcmp (optarg, "nocombreloc") == 0)
b34976b6 2963 link_info.combreloc = FALSE;
8bd621d8 2964 else if (strcmp (optarg, "nocopyreloc") == 0)
0c7a8e5a 2965 link_info.nocopyreloc = TRUE;
8c37241b
JJ
2966 else if (strcmp (optarg, "relro") == 0)
2967 link_info.relro = TRUE;
2968 else if (strcmp (optarg, "norelro") == 0)
2969 link_info.relro = FALSE;
47acac12
L
2970 else if (strcmp (optarg, "separate-code") == 0)
2971 link_info.separate_code = TRUE;
2972 else if (strcmp (optarg, "noseparate-code") == 0)
2973 link_info.separate_code = FALSE;
b8871f35
L
2974 else if (strcmp (optarg, "common") == 0)
2975 link_info.elf_stt_common = elf_stt_common;
2976 else if (strcmp (optarg, "nocommon") == 0)
2977 link_info.elf_stt_common = no_elf_stt_common;
c192a133
AM
2978 else if (strcmp (optarg, "text") == 0)
2979 link_info.error_textrel = TRUE;
2980 else if (strcmp (optarg, "notext") == 0)
2981 link_info.error_textrel = FALSE;
2982 else if (strcmp (optarg, "textoff") == 0)
2983 link_info.error_textrel = FALSE;
88b882e9 2984EOF
fb42df5e 2985fi
88b882e9 2986
eba27bd7
L
2987if test -n "$PARSE_AND_LIST_ARGS_CASE_Z" ; then
2988fragment <<EOF
2989 $PARSE_AND_LIST_ARGS_CASE_Z
2990EOF
2991fi
2992
92b93329 2993fragment <<EOF
fb42df5e 2994 else
df5f2391 2995 einfo (_("%P: warning: -z %s ignored\n"), optarg);
6c1439be 2996 break;
e0ee487b 2997EOF
e0ee487b
L
2998
2999if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
92b93329 3000fragment <<EOF
e0ee487b
L
3001 $PARSE_AND_LIST_ARGS_CASES
3002EOF
3003fi
3004
92b93329 3005fragment <<EOF
e0ee487b
L
3006 }
3007
3bcf5557 3008 return TRUE;
e0ee487b
L
3009}
3010
41392f03 3011EOF
41392f03 3012
4b209b22 3013if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
c58212ea 3014gld_list_options="gld${EMULATION_NAME}_list_options"
eba27bd7 3015if test -n "$PARSE_AND_LIST_OPTIONS"; then
92b93329 3016fragment <<EOF
41392f03 3017
e0ee487b 3018static void
0c7a8e5a 3019gld${EMULATION_NAME}_list_options (FILE * file)
e0ee487b 3020{
fb42df5e 3021EOF
e0ee487b
L
3022
3023if test -n "$PARSE_AND_LIST_OPTIONS" ; then
92b93329 3024fragment <<EOF
e0ee487b
L
3025 $PARSE_AND_LIST_OPTIONS
3026EOF
3027fi
3028
92b93329 3029fragment <<EOF
e0ee487b
L
3030}
3031EOF
c58212ea
L
3032else
3033 gld_list_options="NULL"
3034fi
e0ee487b
L
3035
3036if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
92b93329 3037fragment <<EOF
e0ee487b
L
3038 $PARSE_AND_LIST_EPILOGUE
3039EOF
3040fi
41392f03 3041fi
e0ee487b 3042
92b93329 3043fragment <<EOF
252b5132 3044
60bcf0fa 3045struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
252b5132 3046{
41392f03
AM
3047 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
3048 ${LDEMUL_SYSLIB-syslib_default},
3049 ${LDEMUL_HLL-hll_default},
5fe2850d 3050 ${LDEMUL_AFTER_PARSE-gld${EMULATION_NAME}_after_parse},
41392f03 3051 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
5c3261b0 3052 ${LDEMUL_AFTER_CHECK_RELOCS-after_check_relocs_default},
eaeb0a9d 3053 ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation},
41392f03
AM
3054 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
3055 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
3056 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
3057 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
252b5132
RH
3058 "${EMULATION_NAME}",
3059 "${OUTPUT_FORMAT}",
eaeb0a9d 3060 ${LDEMUL_FINISH-finish_default},
41392f03
AM
3061 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
3062 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
3063 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
3064 ${LDEMUL_SET_SYMBOLS-NULL},
3bcf5557
AM
3065 ${LDEMUL_PARSE_ARGS-NULL},
3066 gld${EMULATION_NAME}_add_options,
3067 gld${EMULATION_NAME}_handle_option,
41392f03 3068 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
c58212ea 3069 ${LDEMUL_LIST_OPTIONS-${gld_list_options}},
4a43e768 3070 ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
41392f03 3071 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
7a2f2d82
DD
3072 ${LDEMUL_NEW_VERS_PATTERN-NULL},
3073 ${LDEMUL_EXTRA_MAP_FILE_TEXT-NULL}
252b5132
RH
3074};
3075EOF
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