bfd/
[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 ${EMULATION_NAME}
e3dc8847 15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
f0fe23c2 16 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
aa820537 17 Free Software Foundation, Inc.
252b5132
RH
18 Written by Steve Chamberlain <sac@cygnus.com>
19 ELF support by Ian Lance Taylor <ian@cygnus.com>
20
f96b4a7b
NC
21 This file is part of the GNU Binutils.
22
23 This program is free software; you can redistribute it and/or modify
24 it under the terms of the GNU General Public License as published by
25 the Free Software Foundation; either version 3 of the License, or
26 (at your option) any later version.
27
28 This program is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 GNU General Public License for more details.
32
33 You should have received a copy of the GNU General Public License
34 along with this program; if not, write to the Free Software
35 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
36 MA 02110-1301, USA. */
252b5132
RH
37
38#define TARGET_IS_${EMULATION_NAME}
39
252b5132 40#include "sysdep.h"
3db64b00 41#include "bfd.h"
1c9acd94 42#include "libiberty.h"
42627821 43#include "filenames.h"
3882b010 44#include "safe-ctype.h"
fcf65871 45#include "getopt.h"
24382dca
RM
46#include "md5.h"
47#include "sha1.h"
48#include <fcntl.h>
252b5132
RH
49
50#include "bfdlink.h"
51
52#include "ld.h"
53#include "ldmain.h"
252b5132
RH
54#include "ldmisc.h"
55#include "ldexp.h"
56#include "ldlang.h"
b71e2778
AM
57#include "ldfile.h"
58#include "ldemul.h"
df2a7313 59#include <ldgram.h>
e0ee487b 60#include "elf/common.h"
ecca9871 61#include "elf-bfd.h"
07f1e47a 62#include "filenames.h"
252b5132 63
0c7a8e5a
AM
64/* Declare functions used by various EXTRA_EM_FILEs. */
65static void gld${EMULATION_NAME}_before_parse (void);
66static void gld${EMULATION_NAME}_after_open (void);
67static void gld${EMULATION_NAME}_before_allocation (void);
eaeb0a9d 68static void gld${EMULATION_NAME}_after_allocation (void);
c2edb4b8 69static lang_output_section_statement_type *gld${EMULATION_NAME}_place_orphan
8a99a385 70 (asection *, const char *, int);
41392f03
AM
71EOF
72
d3989512
JJ
73if [ "x${USE_LIBPATH}" = xyes ] ; then
74 case ${target} in
a5244b7e 75 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 76 fragment <<EOF
0b48acfe 77#ifdef HAVE_GLOB
d3989512 78#include <glob.h>
0b48acfe 79#endif
d3989512
JJ
80EOF
81 ;;
82 esac
83fi
84
41392f03
AM
85# Import any needed special functions and/or overrides.
86#
92b93329 87source_em ${srcdir}/emultempl/elf-generic.em
41392f03 88if test -n "$EXTRA_EM_FILE" ; then
92b93329 89 source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
41392f03
AM
90fi
91
f813923c 92# Functions in this file can be overridden by setting the LDEMUL_* shell
41392f03
AM
93# variables. If the name of the overriding function is the same as is
94# defined in this file, then don't output this file's version.
95# If a different overriding name is given then output the standard function
96# as presumably it is called from the overriding function.
97#
98if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
92b93329 99fragment <<EOF
41392f03 100
252b5132 101static void
0c7a8e5a 102gld${EMULATION_NAME}_before_parse (void)
252b5132 103{
5e2f1575 104 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
66be1055 105 input_flags.dynamic = ${DYNAMIC_LINK-TRUE};
b34976b6 106 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
4724d37e 107 config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
663fa543
L
108}
109
822b8bf4 110EOF
663fa543 111fi
822b8bf4 112
4a43e768 113if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then
92b93329 114fragment <<EOF
ddbb8a31 115/* Handle the generation of DT_NEEDED tags. */
4a43e768
AM
116
117static bfd_boolean
118gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
119{
96d56e9f 120 int link_class = 0;
4a43e768
AM
121
122 /* Tell the ELF linker that we don't want the output file to have a
123 DT_NEEDED entry for this file, unless it is used to resolve
124 references in a regular object. */
66be1055 125 if (entry->flags.add_DT_NEEDED_for_regular)
96d56e9f 126 link_class = DYN_AS_NEEDED;
e56f61be
L
127
128 /* Tell the ELF linker that we don't want the output file to have a
129 DT_NEEDED entry for any dynamic library in DT_NEEDED tags from
130 this file at all. */
66be1055 131 if (!entry->flags.add_DT_NEEDED_for_dynamic)
96d56e9f 132 link_class |= DYN_NO_ADD_NEEDED;
e56f61be 133
66be1055 134 if (entry->flags.just_syms
12b9ff6c
L
135 && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0)
136 einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"),
137 entry->the_bfd);
138
ddbb8a31 139 if (link_class == 0
e56f61be
L
140 || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0)
141 return FALSE;
142
1e9cc1c2 143 bfd_elf_set_dyn_lib_class (entry->the_bfd,
4724d37e 144 (enum dynamic_lib_link_class) link_class);
4a43e768
AM
145
146 /* Continue on with normal load_symbols processing. */
147 return FALSE;
148}
149EOF
150fi
151
92b93329 152fragment <<EOF
252b5132
RH
153
154/* These variables are required to pass information back and forth
155 between after_open and check_needed and stat_needed and vercheck. */
156
157static struct bfd_link_needed_list *global_needed;
158static struct stat global_stat;
e13629bc 159static lang_input_statement_type *global_found;
252b5132 160static struct bfd_link_needed_list *global_vercheck_needed;
b34976b6 161static bfd_boolean global_vercheck_failed;
252b5132 162
7ee314fa
AM
163/* These variables are used to implement target options */
164
165static char *audit; /* colon (typically) separated list of libs */
166static char *depaudit; /* colon (typically) separated list of libs */
252b5132 167
30e8ee25
AM
168/* Style of .note.gnu.build-id section. */
169static const char *emit_note_gnu_build_id;
170
04925e1e
AM
171/* On Linux, it's possible to have different versions of the same
172 shared library linked against different versions of libc. The
173 dynamic linker somehow tags which libc version to use in
174 /etc/ld.so.cache, and, based on the libc that it sees in the
175 executable, chooses which version of the shared library to use.
252b5132 176
04925e1e
AM
177 We try to do a similar check here by checking whether this shared
178 library needs any other shared libraries which may conflict with
179 libraries we have already included in the link. If it does, we
180 skip it, and try to find another shared library farther on down the
181 link path.
252b5132 182
04925e1e
AM
183 This is called via lang_for_each_input_file.
184 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
f813923c 185 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
04925e1e 186 a conflicting version. */
252b5132 187
04925e1e 188static void
0c7a8e5a 189gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
04925e1e 190{
1c9acd94 191 const char *soname;
04925e1e 192 struct bfd_link_needed_list *l;
252b5132 193
04925e1e
AM
194 if (global_vercheck_failed)
195 return;
196 if (s->the_bfd == NULL
197 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
198 return;
252b5132 199
04925e1e
AM
200 soname = bfd_elf_get_dt_soname (s->the_bfd);
201 if (soname == NULL)
fed2999d 202 soname = lbasename (bfd_get_filename (s->the_bfd));
04925e1e
AM
203
204 for (l = global_vercheck_needed; l != NULL; l = l->next)
205 {
206 const char *suffix;
207
42627821 208 if (filename_cmp (soname, l->name) == 0)
04925e1e
AM
209 {
210 /* Probably can't happen, but it's an easy check. */
211 continue;
252b5132
RH
212 }
213
04925e1e 214 if (strchr (l->name, '/') != NULL)
252b5132
RH
215 continue;
216
04925e1e
AM
217 suffix = strstr (l->name, ".so.");
218 if (suffix == NULL)
219 continue;
220
221 suffix += sizeof ".so." - 1;
222
42627821 223 if (filename_ncmp (soname, l->name, suffix - l->name) == 0)
04925e1e
AM
224 {
225 /* Here we know that S is a dynamic object FOO.SO.VER1, and
0c7a8e5a
AM
226 the object we are considering needs a dynamic object
227 FOO.SO.VER2, and VER1 and VER2 are different. This
228 appears to be a version mismatch, so we tell the caller
229 to try a different version of this library. */
b34976b6 230 global_vercheck_failed = TRUE;
04925e1e
AM
231 return;
232 }
252b5132
RH
233 }
234}
235
252b5132 236
04925e1e
AM
237/* See if an input file matches a DT_NEEDED entry by running stat on
238 the file. */
239
240static void
0c7a8e5a 241gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
252b5132 242{
04925e1e
AM
243 struct stat st;
244 const char *suffix;
245 const char *soname;
252b5132 246
e13629bc 247 if (global_found != NULL)
04925e1e
AM
248 return;
249 if (s->the_bfd == NULL)
250 return;
e13629bc
AM
251
252 /* If this input file was an as-needed entry, and wasn't found to be
253 needed at the stage it was linked, then don't say we have loaded it. */
254 if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86 255 return;
04925e1e
AM
256
257 if (bfd_stat (s->the_bfd, &st) != 0)
252b5132 258 {
04925e1e
AM
259 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
260 return;
261 }
252b5132 262
9eabd475
ZW
263 /* Some operating systems, e.g. Windows, do not provide a meaningful
264 st_ino; they always set it to zero. (Windows does provide a
265 meaningful st_dev.) Do not indicate a duplicate library in that
266 case. While there is no guarantee that a system that provides
267 meaningful inode numbers will never set st_ino to zero, this is
268 merely an optimization, so we do not need to worry about false
269 negatives. */
04925e1e 270 if (st.st_dev == global_stat.st_dev
9eabd475
ZW
271 && st.st_ino == global_stat.st_ino
272 && st.st_ino != 0)
04925e1e 273 {
e13629bc 274 global_found = s;
04925e1e
AM
275 return;
276 }
252b5132 277
04925e1e
AM
278 /* We issue a warning if it looks like we are including two
279 different versions of the same shared library. For example,
280 there may be a problem if -lc picks up libc.so.6 but some other
281 shared library has a DT_NEEDED entry of libc.so.5. This is a
f813923c 282 heuristic test, and it will only work if the name looks like
04925e1e
AM
283 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
284 If we really want to issue warnings about mixing version numbers
285 of shared libraries, we need to find a better way. */
252b5132 286
04925e1e
AM
287 if (strchr (global_needed->name, '/') != NULL)
288 return;
289 suffix = strstr (global_needed->name, ".so.");
290 if (suffix == NULL)
291 return;
292 suffix += sizeof ".so." - 1;
252b5132 293
04925e1e
AM
294 soname = bfd_elf_get_dt_soname (s->the_bfd);
295 if (soname == NULL)
fed2999d 296 soname = lbasename (s->filename);
252b5132 297
42627821 298 if (filename_ncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
04925e1e 299 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
1c9acd94 300 global_needed->name, global_needed->by, soname);
252b5132
RH
301}
302
e56f61be
L
303struct dt_needed
304{
305 bfd *by;
306 const char *name;
307};
04925e1e 308
252b5132
RH
309/* This function is called for each possible name for a dynamic object
310 named by a DT_NEEDED entry. The FORCE parameter indicates whether
311 to skip the check for a conflicting version. */
312
b34976b6 313static bfd_boolean
e56f61be
L
314gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
315 int force)
252b5132
RH
316{
317 bfd *abfd;
e56f61be 318 const char *name = needed->name;
ec4eb78a 319 const char *soname;
96d56e9f 320 int link_class;
252b5132 321
f13a99db 322 abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd));
252b5132 323 if (abfd == NULL)
b34976b6 324 return FALSE;
4a114e3e
L
325
326 /* Linker needs to decompress sections. */
327 abfd->flags |= BFD_DECOMPRESS;
328
252b5132
RH
329 if (! bfd_check_format (abfd, bfd_object))
330 {
cde43e70 331 bfd_close (abfd);
b34976b6 332 return FALSE;
252b5132
RH
333 }
334 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
335 {
cde43e70 336 bfd_close (abfd);
b34976b6 337 return FALSE;
252b5132
RH
338 }
339
c4bb8067 340 /* For DT_NEEDED, they have to match. */
f13a99db 341 if (abfd->xvec != link_info.output_bfd->xvec)
c4bb8067
L
342 {
343 bfd_close (abfd);
b34976b6 344 return FALSE;
c4bb8067
L
345 }
346
252b5132
RH
347 /* Check whether this object would include any conflicting library
348 versions. If FORCE is set, then we skip this check; we use this
349 the second time around, if we couldn't find any compatible
350 instance of the shared library. */
351
352 if (! force)
353 {
91d6fa6a 354 struct bfd_link_needed_list *needs;
252b5132 355
91d6fa6a 356 if (! bfd_elf_get_bfd_needed_list (abfd, &needs))
252b5132
RH
357 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
358
91d6fa6a 359 if (needs != NULL)
252b5132 360 {
91d6fa6a 361 global_vercheck_needed = needs;
b34976b6 362 global_vercheck_failed = FALSE;
252b5132
RH
363 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
364 if (global_vercheck_failed)
365 {
cde43e70 366 bfd_close (abfd);
b34976b6 367 /* Return FALSE to force the caller to move on to try
0c7a8e5a 368 another file on the search path. */
b34976b6 369 return FALSE;
252b5132
RH
370 }
371
372 /* But wait! It gets much worse. On Linux, if a shared
0c7a8e5a
AM
373 library does not use libc at all, we are supposed to skip
374 it the first time around in case we encounter a shared
375 library later on with the same name which does use the
376 version of libc that we want. This is much too horrible
377 to use on any system other than Linux. */
252b5132
RH
378
379EOF
380case ${target} in
a5244b7e 381 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 382 fragment <<EOF
252b5132
RH
383 {
384 struct bfd_link_needed_list *l;
385
91d6fa6a 386 for (l = needs; l != NULL; l = l->next)
0112cd26 387 if (CONST_STRNEQ (l->name, "libc.so"))
252b5132
RH
388 break;
389 if (l == NULL)
390 {
cde43e70 391 bfd_close (abfd);
b34976b6 392 return FALSE;
252b5132
RH
393 }
394 }
395
396EOF
397 ;;
398esac
92b93329 399fragment <<EOF
252b5132
RH
400 }
401 }
402
403 /* We've found a dynamic object matching the DT_NEEDED entry. */
404
04925e1e
AM
405 /* We have already checked that there is no other input file of the
406 same name. We must now check again that we are not including the
407 same file twice. We need to do this because on many systems
408 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
409 reference libc.so.1. If we have already included libc.so, we
410 don't want to include libc.so.1 if they are the same file, and we
411 can only check that using stat. */
412
413 if (bfd_stat (abfd, &global_stat) != 0)
414 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
ec4eb78a
L
415
416 /* First strip off everything before the last '/'. */
fed2999d 417 soname = lbasename (abfd->filename);
ec4eb78a 418
cd6f1cf3 419 if (verbose)
ec4eb78a
L
420 info_msg (_("found %s at %s\n"), soname, name);
421
e13629bc 422 global_found = NULL;
04925e1e 423 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
e13629bc 424 if (global_found != NULL)
04925e1e 425 {
b34976b6 426 /* Return TRUE to indicate that we found the file, even though
0c7a8e5a 427 we aren't going to do anything with it. */
b34976b6 428 return TRUE;
04925e1e
AM
429 }
430
4a43e768
AM
431 /* Specify the soname to use. */
432 bfd_elf_set_dt_needed_name (abfd, soname);
04925e1e 433
4a43e768
AM
434 /* Tell the ELF linker that we don't want the output file to have a
435 DT_NEEDED entry for this file, unless it is used to resolve
436 references in a regular object. */
96d56e9f 437 link_class = DYN_DT_NEEDED;
e56f61be
L
438
439 /* Tell the ELF linker that we don't want the output file to have a
440 DT_NEEDED entry for this file at all if the entry is from a file
441 with DYN_NO_ADD_NEEDED. */
7e9f0867
AM
442 if (needed->by != NULL
443 && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
96d56e9f 444 link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
e56f61be 445
1e9cc1c2 446 bfd_elf_set_dyn_lib_class (abfd, (enum dynamic_lib_link_class) link_class);
04925e1e
AM
447
448 /* Add this file into the symbol table. */
449 if (! bfd_link_add_symbols (abfd, &link_info))
8ff4c1f3 450 einfo ("%F%B: error adding symbols: %E\n", abfd);
04925e1e 451
b34976b6 452 return TRUE;
04925e1e
AM
453}
454
455
456/* Search for a needed file in a path. */
457
b34976b6 458static bfd_boolean
e56f61be
L
459gld${EMULATION_NAME}_search_needed (const char *path,
460 struct dt_needed *n, int force)
04925e1e
AM
461{
462 const char *s;
e56f61be 463 const char *name = n->name;
04925e1e 464 size_t len;
e56f61be 465 struct dt_needed needed;
04925e1e 466
cc5ce052 467 if (name[0] == '/')
e56f61be 468 return gld${EMULATION_NAME}_try_needed (n, force);
cc5ce052 469
04925e1e 470 if (path == NULL || *path == '\0')
b34976b6 471 return FALSE;
e56f61be
L
472
473 needed.by = n->by;
474 needed.name = n->name;
475
04925e1e
AM
476 len = strlen (name);
477 while (1)
478 {
479 char *filename, *sset;
480
c76308d2 481 s = strchr (path, config.rpath_separator);
04925e1e
AM
482 if (s == NULL)
483 s = path + strlen (path);
484
07f1e47a
AM
485#if HAVE_DOS_BASED_FILE_SYSTEM
486 /* Assume a match on the second char is part of drive specifier. */
487 else if (config.rpath_separator == ':'
488 && s == path + 1
489 && ISALPHA (*path))
490 {
491 s = strchr (s + 1, config.rpath_separator);
492 if (s == NULL)
493 s = path + strlen (path);
494 }
495#endif
04925e1e
AM
496 filename = (char *) xmalloc (s - path + len + 2);
497 if (s == path)
498 sset = filename;
499 else
500 {
501 memcpy (filename, path, s - path);
502 filename[s - path] = '/';
503 sset = filename + (s - path) + 1;
504 }
505 strcpy (sset, name);
506
e56f61be
L
507 needed.name = filename;
508 if (gld${EMULATION_NAME}_try_needed (&needed, force))
b34976b6 509 return TRUE;
04925e1e
AM
510
511 free (filename);
512
513 if (*s == '\0')
514 break;
515 path = s + 1;
516 }
517
b34976b6 518 return FALSE;
04925e1e
AM
519}
520
521EOF
9c8ebd6a 522if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 523 fragment <<EOF
9c8ebd6a 524
c76308d2
RS
525/* Add the sysroot to every entry in a path separated by
526 config.rpath_separator. */
9c8ebd6a
DJ
527
528static char *
0c7a8e5a 529gld${EMULATION_NAME}_add_sysroot (const char *path)
9c8ebd6a
DJ
530{
531 int len, colons, i;
532 char *ret, *p;
533
534 len = strlen (path);
535 colons = 0;
536 i = 0;
537 while (path[i])
c76308d2 538 if (path[i++] == config.rpath_separator)
9c8ebd6a
DJ
539 colons++;
540
541 if (path[i])
542 colons++;
543
42644a89 544 len = len + (colons + 1) * strlen (ld_sysroot);
9c8ebd6a
DJ
545 ret = xmalloc (len + 1);
546 strcpy (ret, ld_sysroot);
547 p = ret + strlen (ret);
548 i = 0;
549 while (path[i])
c76308d2 550 if (path[i] == config.rpath_separator)
9c8ebd6a 551 {
0c7a8e5a 552 *p++ = path[i++];
9c8ebd6a
DJ
553 strcpy (p, ld_sysroot);
554 p = p + strlen (p);
9c8ebd6a
DJ
555 }
556 else
557 *p++ = path[i++];
558
559 *p = 0;
560 return ret;
561}
04925e1e 562
3dc16cab
DJ
563EOF
564 case ${target} in
ebe1fac1 565 *-*-freebsd* | *-*-dragonfly*)
92b93329 566 fragment <<EOF
ebe1fac1
NC
567/* Read the system search path the FreeBSD way rather than the Linux way. */
568#ifdef HAVE_ELF_HINTS_H
569#include <elf-hints.h>
570#else
571#include "elf-hints-local.h"
572#endif
573
574static bfd_boolean
d5c8b1f8
AM
575gld${EMULATION_NAME}_check_ld_elf_hints (const struct bfd_link_needed_list *l,
576 int force)
ebe1fac1
NC
577{
578 static bfd_boolean initialized;
579 static char *ld_elf_hints;
580 struct dt_needed needed;
581
582 if (!initialized)
583 {
584 FILE *f;
585 char *tmppath;
586
ff7a0acf 587 tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL);
ebe1fac1
NC
588 f = fopen (tmppath, FOPEN_RB);
589 free (tmppath);
590 if (f != NULL)
591 {
592 struct elfhints_hdr hdr;
593
594 if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr)
595 && hdr.magic == ELFHINTS_MAGIC
596 && hdr.version == 1)
597 {
598 if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1)
599 {
600 char *b;
601
602 b = xmalloc (hdr.dirlistlen + 1);
603 if (fread (b, 1, hdr.dirlistlen + 1, f) ==
604 hdr.dirlistlen + 1)
605 ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b);
e13629bc 606
ebe1fac1
NC
607 free (b);
608 }
609 }
610 fclose (f);
611 }
612
613 initialized = TRUE;
614 }
615
616 if (ld_elf_hints == NULL)
617 return FALSE;
618
d5c8b1f8
AM
619 needed.by = l->by;
620 needed.name = l->name;
621 return gld${EMULATION_NAME}_search_needed (ld_elf_hints, &needed, force);
ebe1fac1
NC
622}
623EOF
624 # FreeBSD
625 ;;
626
a5244b7e 627 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 628 fragment <<EOF
04925e1e
AM
629/* For a native linker, check the file /etc/ld.so.conf for directories
630 in which we may find shared libraries. /etc/ld.so.conf is really
482e8b32 631 only meaningful on Linux. */
04925e1e 632
d3989512 633struct gld${EMULATION_NAME}_ld_so_conf
04925e1e 634{
d3989512
JJ
635 char *path;
636 size_t len, alloc;
637};
04925e1e 638
dfcffada 639static bfd_boolean
d3989512
JJ
640gld${EMULATION_NAME}_parse_ld_so_conf
641 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
642
643static void
644gld${EMULATION_NAME}_parse_ld_so_conf_include
645 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
646 const char *pattern)
647{
648 char *newp = NULL;
0b48acfe 649#ifdef HAVE_GLOB
d3989512 650 glob_t gl;
0b48acfe 651#endif
d3989512
JJ
652
653 if (pattern[0] != '/')
04925e1e 654 {
d3989512
JJ
655 char *p = strrchr (filename, '/');
656 size_t patlen = strlen (pattern) + 1;
04925e1e 657
d3989512
JJ
658 newp = xmalloc (p - filename + 1 + patlen);
659 memcpy (newp, filename, p - filename + 1);
660 memcpy (newp + (p - filename + 1), pattern, patlen);
661 pattern = newp;
662 }
04925e1e 663
0b48acfe 664#ifdef HAVE_GLOB
d3989512
JJ
665 if (glob (pattern, 0, NULL, &gl) == 0)
666 {
667 size_t i;
668
669 for (i = 0; i < gl.gl_pathc; ++i)
670 gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
671 globfree (&gl);
672 }
0b48acfe
MM
673#else
674 /* If we do not have glob, treat the pattern as a literal filename. */
675 gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
676#endif
d3989512
JJ
677
678 if (newp)
679 free (newp);
680}
681
dfcffada 682static bfd_boolean
d3989512
JJ
683gld${EMULATION_NAME}_parse_ld_so_conf
684 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
685{
686 FILE *f = fopen (filename, FOPEN_RT);
563f4125
JJ
687 char *line;
688 size_t linelen;
d3989512
JJ
689
690 if (f == NULL)
dfcffada 691 return FALSE;
d3989512 692
563f4125
JJ
693 linelen = 256;
694 line = xmalloc (linelen);
695 do
d3989512 696 {
563f4125
JJ
697 char *p = line, *q;
698
699 /* Normally this would use getline(3), but we need to be portable. */
700 while ((q = fgets (p, linelen - (p - line), f)) != NULL
701 && strlen (q) == linelen - (p - line) - 1
702 && line[linelen - 2] != '\n')
703 {
704 line = xrealloc (line, 2 * linelen);
705 p = line + linelen - 1;
706 linelen += linelen;
707 }
708
709 if (q == NULL && p == line)
710 break;
d3989512
JJ
711
712 p = strchr (line, '\n');
713 if (p)
714 *p = '\0';
715
716 /* Because the file format does not know any form of quoting we
717 can search forward for the next '#' character and if found
718 make it terminating the line. */
719 p = strchr (line, '#');
720 if (p)
721 *p = '\0';
722
723 /* Remove leading whitespace. NUL is no whitespace character. */
724 p = line;
725 while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
726 ++p;
727
728 /* If the line is blank it is ignored. */
729 if (p[0] == '\0')
730 continue;
04925e1e 731
0112cd26 732 if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t'))
d3989512
JJ
733 {
734 char *dir, c;
735 p += 8;
736 do
04925e1e 737 {
d3989512
JJ
738 while (*p == ' ' || *p == '\t')
739 ++p;
04925e1e 740
d3989512
JJ
741 if (*p == '\0')
742 break;
252b5132 743
d3989512
JJ
744 dir = p;
745
746 while (*p != ' ' && *p != '\t' && *p)
747 ++p;
748
749 c = *p;
750 *p++ = '\0';
751 if (dir[0] != '\0')
752 gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
753 dir);
754 }
755 while (c != '\0');
756 }
757 else
758 {
759 char *dir = p;
760 while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
761 && *p != '\r' && *p != '\v')
762 ++p;
763
764 while (p != dir && p[-1] == '/')
765 --p;
766 if (info->path == NULL)
767 {
768 info->alloc = p - dir + 1 + 256;
769 info->path = xmalloc (info->alloc);
770 info->len = 0;
771 }
04925e1e
AM
772 else
773 {
d3989512
JJ
774 if (info->len + 1 + (p - dir) >= info->alloc)
775 {
776 info->alloc += p - dir + 256;
777 info->path = xrealloc (info->path, info->alloc);
778 }
c76308d2 779 info->path[info->len++] = config.rpath_separator;
04925e1e 780 }
d3989512
JJ
781 memcpy (info->path + info->len, dir, p - dir);
782 info->len += p - dir;
783 info->path[info->len] = '\0';
784 }
785 }
563f4125 786 while (! feof (f));
d3989512
JJ
787 free (line);
788 fclose (f);
dfcffada 789 return TRUE;
d3989512 790}
252b5132 791
d3989512 792static bfd_boolean
d5c8b1f8
AM
793gld${EMULATION_NAME}_check_ld_so_conf (const struct bfd_link_needed_list *l,
794 int force)
d3989512
JJ
795{
796 static bfd_boolean initialized;
797 static char *ld_so_conf;
798 struct dt_needed needed;
252b5132 799
d3989512
JJ
800 if (! initialized)
801 {
802 char *tmppath;
803 struct gld${EMULATION_NAME}_ld_so_conf info;
9c8ebd6a 804
d3989512
JJ
805 info.path = NULL;
806 info.len = info.alloc = 0;
ff7a0acf
AM
807 tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf",
808 (const char *) NULL);
dfcffada
AM
809 if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath))
810 {
811 free (tmppath);
ff7a0acf
AM
812 tmppath = concat (ld_sysroot, "/etc/ld.so.conf",
813 (const char *) NULL);
dfcffada
AM
814 gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
815 }
d3989512 816 free (tmppath);
dfcffada 817
d3989512
JJ
818 if (info.path)
819 {
820 char *d = gld${EMULATION_NAME}_add_sysroot (info.path);
821 free (info.path);
822 ld_so_conf = d;
04925e1e 823 }
b34976b6 824 initialized = TRUE;
04925e1e 825 }
49e56c49 826
04925e1e 827 if (ld_so_conf == NULL)
b34976b6 828 return FALSE;
252b5132 829
e56f61be 830
d5c8b1f8
AM
831 needed.by = l->by;
832 needed.name = l->name;
e56f61be 833 return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
252b5132
RH
834}
835
04925e1e 836EOF
9c8ebd6a
DJ
837 # Linux
838 ;;
04925e1e
AM
839 esac
840fi
92b93329 841fragment <<EOF
04925e1e 842
252b5132
RH
843/* See if an input file matches a DT_NEEDED entry by name. */
844
845static void
0c7a8e5a 846gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
252b5132 847{
e13629bc
AM
848 const char *soname;
849
850 /* Stop looking if we've found a loaded lib. */
851 if (global_found != NULL
852 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
853 & DYN_AS_NEEDED) == 0)
252b5132
RH
854 return;
855
e13629bc
AM
856 if (s->filename == NULL || s->the_bfd == NULL)
857 return;
858
859 /* Don't look for a second non-loaded as-needed lib. */
860 if (global_found != NULL
861 && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86
AM
862 return;
863
42627821 864 if (filename_cmp (s->filename, global_needed->name) == 0)
252b5132 865 {
e13629bc
AM
866 global_found = s;
867 return;
868 }
577a0623 869
66be1055 870 if (s->flags.search_dirs)
e13629bc
AM
871 {
872 const char *f = strrchr (s->filename, '/');
873 if (f != NULL
42627821 874 && filename_cmp (f + 1, global_needed->name) == 0)
577a0623 875 {
e13629bc 876 global_found = s;
577a0623
AM
877 return;
878 }
252b5132
RH
879 }
880
e13629bc
AM
881 soname = bfd_elf_get_dt_soname (s->the_bfd);
882 if (soname != NULL
42627821 883 && filename_cmp (soname, global_needed->name) == 0)
252b5132 884 {
e13629bc
AM
885 global_found = s;
886 return;
252b5132 887 }
252b5132
RH
888}
889
41392f03
AM
890EOF
891
892if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
92b93329 893fragment <<EOF
04925e1e 894
24382dca 895static bfd_size_type
30e8ee25 896id_note_section_size (bfd *abfd)
24382dca 897{
30e8ee25 898 const char *style = emit_note_gnu_build_id;
24382dca
RM
899 bfd_size_type size;
900
901 abfd = abfd;
902
903 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
904 size = (size + 3) & -(bfd_size_type) 4;
905
906 if (!strcmp (style, "md5") || !strcmp (style, "uuid"))
907 size += 128 / 8;
908 else if (!strcmp (style, "sha1"))
909 size += 160 / 8;
910 else if (!strncmp (style, "0x", 2))
911 {
912 /* ID is in string form (hex). Convert to bits. */
913 const char *id = style + 2;
914 do
915 {
916 if (ISXDIGIT (id[0]) && ISXDIGIT (id[1]))
917 {
918 ++size;
919 id += 2;
920 }
921 else if (*id == '-' || *id == ':')
922 ++id;
923 else
924 {
925 size = 0;
926 break;
927 }
928 } while (*id != '\0');
929 }
930 else
931 size = 0;
932
933 return size;
934}
935
936static unsigned char
937read_hex (const char xdigit)
938{
939 if (ISDIGIT (xdigit))
940 return xdigit - '0';
941 if (ISUPPER (xdigit))
942 return xdigit - 'A' + 0xa;
943 if (ISLOWER (xdigit))
944 return xdigit - 'a' + 0xa;
945 abort ();
946 return 0;
947}
948
24382dca 949static bfd_boolean
30e8ee25 950write_build_id (bfd *abfd)
24382dca
RM
951{
952 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
30e8ee25
AM
953 struct elf_obj_tdata *t = elf_tdata (abfd);
954 const char *style;
24382dca
RM
955 asection *asec;
956 Elf_Internal_Shdr *i_shdr;
957 unsigned char *contents, *id_bits;
958 bfd_size_type size;
30e8ee25 959 file_ptr position;
24382dca 960 Elf_External_Note *e_note;
30e8ee25 961 typedef void (*sum_fn) (const void *, size_t, void *);
24382dca 962
c0355132
AM
963 style = t->o->build_id.style;
964 asec = t->o->build_id.sec;
83e4970b 965 if (bfd_is_abs_section (asec->output_section))
24382dca 966 {
83e4970b
AM
967 einfo (_("%P: warning: .note.gnu.build-id section discarded,"
968 " --build-id ignored.\n"));
969 return TRUE;
24382dca
RM
970 }
971 i_shdr = &elf_section_data (asec->output_section)->this_hdr;
972
973 if (i_shdr->contents == NULL)
974 {
b2ff8454 975 if (asec->contents == NULL)
1e9cc1c2 976 asec->contents = (unsigned char *) xmalloc (asec->size);
b2ff8454 977 contents = asec->contents;
24382dca 978 }
b2ff8454
RM
979 else
980 contents = i_shdr->contents + asec->output_offset;
24382dca 981
1e9cc1c2 982 e_note = (Elf_External_Note *) contents;
24382dca
RM
983 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
984 size = (size + 3) & -(bfd_size_type) 4;
985 id_bits = contents + size;
986 size = asec->size - size;
987
988 bfd_h_put_32 (abfd, sizeof "GNU", &e_note->namesz);
989 bfd_h_put_32 (abfd, size, &e_note->descsz);
990 bfd_h_put_32 (abfd, NT_GNU_BUILD_ID, &e_note->type);
991 memcpy (e_note->name, "GNU", sizeof "GNU");
992
30e8ee25 993 if (strcmp (style, "md5") == 0)
24382dca
RM
994 {
995 struct md5_ctx ctx;
30e8ee25 996
24382dca 997 md5_init_ctx (&ctx);
30e8ee25 998 if (!bed->s->checksum_contents (abfd, (sum_fn) &md5_process_bytes, &ctx))
24382dca 999 return FALSE;
30e8ee25 1000 md5_finish_ctx (&ctx, id_bits);
24382dca 1001 }
30e8ee25 1002 else if (strcmp (style, "sha1") == 0)
24382dca
RM
1003 {
1004 struct sha1_ctx ctx;
30e8ee25 1005
24382dca 1006 sha1_init_ctx (&ctx);
30e8ee25 1007 if (!bed->s->checksum_contents (abfd, (sum_fn) &sha1_process_bytes, &ctx))
24382dca 1008 return FALSE;
30e8ee25 1009 sha1_finish_ctx (&ctx, id_bits);
24382dca 1010 }
30e8ee25 1011 else if (strcmp (style, "uuid") == 0)
24382dca
RM
1012 {
1013 int n;
1014 int fd = open ("/dev/urandom", O_RDONLY);
1015 if (fd < 0)
1016 return FALSE;
1017 n = read (fd, id_bits, size);
1018 close (fd);
1019 if (n < (int) size)
1020 return FALSE;
1021 }
30e8ee25 1022 else if (strncmp (style, "0x", 2) == 0)
24382dca
RM
1023 {
1024 /* ID is in string form (hex). Convert to bits. */
30e8ee25 1025 const char *id = style + 2;
24382dca
RM
1026 size_t n = 0;
1027 do
1028 {
1029 if (ISXDIGIT (id[0]) && ISXDIGIT (id[1]))
1030 {
1031 id_bits[n] = read_hex (*id++) << 4;
1032 id_bits[n++] |= read_hex (*id++);
1033 }
1034 else if (*id == '-' || *id == ':')
1035 ++id;
1036 else
1037 abort (); /* Should have been validated earlier. */
1038 } while (*id != '\0');
1039 }
1040 else
1041 abort (); /* Should have been validated earlier. */
1042
30e8ee25 1043 position = i_shdr->sh_offset + asec->output_offset;
b2ff8454 1044 size = asec->size;
30e8ee25 1045 return (bfd_seek (abfd, position, SEEK_SET) == 0
b2ff8454 1046 && bfd_bwrite (contents, size, abfd) == size);
24382dca
RM
1047}
1048
30e8ee25
AM
1049/* Make .note.gnu.build-id section, and set up elf_tdata->build_id. */
1050
1051static bfd_boolean
1052setup_build_id (bfd *ibfd)
1053{
1054 asection *s;
1055 bfd_size_type size;
1056 flagword flags;
1057
1058 size = id_note_section_size (ibfd);
1059 if (size == 0)
1060 {
1061 einfo ("%P: warning: unrecognized --build-id style ignored.\n");
1062 return FALSE;
1063 }
1064
1065 flags = (SEC_ALLOC | SEC_LOAD | SEC_IN_MEMORY
1066 | SEC_LINKER_CREATED | SEC_READONLY | SEC_DATA);
1067 s = bfd_make_section_with_flags (ibfd, ".note.gnu.build-id", flags);
1068 if (s != NULL && bfd_set_section_alignment (ibfd, s, 2))
1069 {
1070 struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
c0355132
AM
1071 t->o->build_id.after_write_object_contents = &write_build_id;
1072 t->o->build_id.style = emit_note_gnu_build_id;
1073 t->o->build_id.sec = s;
1074 elf_section_type (s) = SHT_NOTE;
1075 s->size = size;
1076 return TRUE;
30e8ee25
AM
1077 }
1078
1079 einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
1080 " --build-id ignored.\n");
1081 return FALSE;
1082}
24382dca 1083
04925e1e 1084/* This is called after all the input files have been opened. */
252b5132
RH
1085
1086static void
0c7a8e5a 1087gld${EMULATION_NAME}_after_open (void)
252b5132 1088{
04925e1e 1089 struct bfd_link_needed_list *needed, *l;
d10e7fcc
AM
1090 struct elf_link_hash_table *htab;
1091
5c3049d2
AM
1092 after_open_default ();
1093
d10e7fcc
AM
1094 htab = elf_hash_table (&link_info);
1095 if (!is_elf_hash_table (htab))
1096 return;
252b5132 1097
30e8ee25 1098 if (emit_note_gnu_build_id != NULL)
c0065db7
RM
1099 {
1100 bfd *abfd;
c0065db7 1101
a654efd6
L
1102 /* Find an ELF input. */
1103 for (abfd = link_info.input_bfds;
1104 abfd != (bfd *) NULL; abfd = abfd->link_next)
1105 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1106 break;
c0065db7 1107
30e8ee25
AM
1108 /* PR 10555: If there are no ELF input files do not try to
1109 create a .note.gnu-build-id section. */
1110 if (abfd == NULL
1111 || !setup_build_id (abfd))
c0065db7 1112 {
30e8ee25
AM
1113 free ((char *) emit_note_gnu_build_id);
1114 emit_note_gnu_build_id = NULL;
c0065db7
RM
1115 }
1116 }
1117
d10e7fcc
AM
1118 if (link_info.relocatable)
1119 return;
1120
eb3d5f3b 1121 if (link_info.eh_frame_hdr
d10e7fcc 1122 && !link_info.traditional_format)
eb3d5f3b 1123 {
a654efd6
L
1124 bfd *abfd, *elfbfd = NULL;
1125 bfd_boolean warn_eh_frame = FALSE;
d10e7fcc 1126 asection *s;
eb3d5f3b 1127
d10e7fcc 1128 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)
eb3d5f3b 1129 {
a654efd6
L
1130 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1131 elfbfd = abfd;
4440bb77
L
1132 if (!warn_eh_frame)
1133 {
1134 s = bfd_get_section_by_name (abfd, ".eh_frame");
9cf8b46e
AM
1135 while (s != NULL
1136 && (s->size <= 8
1137 || bfd_is_abs_section (s->output_section)))
1138 s = bfd_get_next_section_by_name (s);
1139 warn_eh_frame = s != NULL;
4440bb77
L
1140 }
1141 if (elfbfd && warn_eh_frame)
1142 break;
d10e7fcc 1143 }
a654efd6 1144 if (elfbfd)
d10e7fcc
AM
1145 {
1146 const struct elf_backend_data *bed;
1147
a654efd6
L
1148 bed = get_elf_backend_data (elfbfd);
1149 s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr",
1150 bed->dynamic_sec_flags
1151 | SEC_READONLY);
d10e7fcc 1152 if (s != NULL
a654efd6
L
1153 && bfd_set_section_alignment (elfbfd, s, 2))
1154 {
1155 htab->eh_info.hdr_sec = s;
1156 warn_eh_frame = FALSE;
1157 }
eb3d5f3b 1158 }
a654efd6
L
1159 if (warn_eh_frame)
1160 einfo ("%P: warning: Cannot create .eh_frame_hdr section,"
1161 " --eh-frame-hdr ignored.\n");
eb3d5f3b
JB
1162 }
1163
04925e1e
AM
1164 /* Get the list of files which appear in DT_NEEDED entries in
1165 dynamic objects included in the link (often there will be none).
1166 For each such file, we want to track down the corresponding
1167 library, and include the symbol table in the link. This is what
1168 the runtime dynamic linker will do. Tracking the files down here
1169 permits one dynamic object to include another without requiring
1170 special action by the person doing the link. Note that the
1171 needed list can actually grow while we are stepping through this
1172 loop. */
f13a99db 1173 needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info);
04925e1e 1174 for (l = needed; l != NULL; l = l->next)
252b5132 1175 {
04925e1e 1176 struct bfd_link_needed_list *ll;
e56f61be 1177 struct dt_needed n, nn;
04925e1e 1178 int force;
252b5132 1179
7e9f0867 1180 /* If the lib that needs this one was --as-needed and wasn't
4706eab9 1181 found to be needed, then this lib isn't needed either. */
7e9f0867 1182 if (l->by != NULL
4706eab9
AM
1183 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0)
1184 continue;
1185
1186 /* Skip the lib if --no-copy-dt-needed-entries and
1187 --allow-shlib-undefined is in effect. */
1188 if (l->by != NULL
1189 && link_info.unresolved_syms_in_shared_libs == RM_IGNORE
1190 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_NO_ADD_NEEDED) != 0)
7e9f0867
AM
1191 continue;
1192
04925e1e
AM
1193 /* If we've already seen this file, skip it. */
1194 for (ll = needed; ll != l; ll = ll->next)
7e9f0867
AM
1195 if ((ll->by == NULL
1196 || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
1197 && strcmp (ll->name, l->name) == 0)
04925e1e
AM
1198 break;
1199 if (ll != l)
1200 continue;
252b5132 1201
04925e1e
AM
1202 /* See if this file was included in the link explicitly. */
1203 global_needed = l;
e13629bc 1204 global_found = NULL;
04925e1e 1205 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
e13629bc
AM
1206 if (global_found != NULL
1207 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
1208 & DYN_AS_NEEDED) == 0)
04925e1e 1209 continue;
252b5132 1210
e56f61be
L
1211 n.by = l->by;
1212 n.name = l->name;
1213 nn.by = l->by;
cd6f1cf3 1214 if (verbose)
ec4eb78a
L
1215 info_msg (_("%s needed by %B\n"), l->name, l->by);
1216
e13629bc
AM
1217 /* As-needed libs specified on the command line (or linker script)
1218 take priority over libs found in search dirs. */
1219 if (global_found != NULL)
1220 {
1221 nn.name = global_found->filename;
1222 if (gld${EMULATION_NAME}_try_needed (&nn, TRUE))
1223 continue;
1224 }
1225
04925e1e
AM
1226 /* We need to find this file and include the symbol table. We
1227 want to search for the file in the same way that the dynamic
1228 linker will search. That means that we want to use
1229 rpath_link, rpath, then the environment variable
ec4eb78a
L
1230 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
1231 entries (native only), then the linker script LIB_SEARCH_DIRS.
1232 We do not search using the -L arguments.
252b5132 1233
04925e1e
AM
1234 We search twice. The first time, we skip objects which may
1235 introduce version mismatches. The second time, we force
1236 their use. See gld${EMULATION_NAME}_vercheck comment. */
1237 for (force = 0; force < 2; force++)
1238 {
04925e1e
AM
1239 size_t len;
1240 search_dirs_type *search;
6dd8c765 1241EOF
ff925e69 1242if [ "x${NATIVE}" = xyes ] ; then
92b93329 1243fragment <<EOF
dcb0bd0e 1244 const char *lib_path;
ff925e69
KK
1245EOF
1246fi
1247if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1248fragment <<EOF
6dd8c765
L
1249 struct bfd_link_needed_list *rp;
1250 int found;
1251EOF
6dd8c765 1252fi
92b93329 1253fragment <<EOF
252b5132 1254
04925e1e 1255 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
e56f61be 1256 &n, force))
04925e1e 1257 break;
dcb0bd0e 1258EOF
9c8ebd6a 1259if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1260fragment <<EOF
04925e1e 1261 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
e56f61be 1262 &n, force))
04925e1e 1263 break;
9c8ebd6a
DJ
1264EOF
1265fi
1266if [ "x${NATIVE}" = xyes ] ; then
92b93329 1267fragment <<EOF
04925e1e
AM
1268 if (command_line.rpath_link == NULL
1269 && command_line.rpath == NULL)
1270 {
1271 lib_path = (const char *) getenv ("LD_RUN_PATH");
e56f61be 1272 if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
04925e1e
AM
1273 force))
1274 break;
1275 }
04925e1e 1276 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
e56f61be 1277 if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force))
04925e1e 1278 break;
9c8ebd6a
DJ
1279EOF
1280fi
1281if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1282fragment <<EOF
ec4eb78a 1283 found = 0;
f13a99db 1284 rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info);
6dd8c765 1285 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a 1286 {
9c8ebd6a 1287 char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name);
ec4eb78a 1288 found = (rp->by == l->by
9c8ebd6a 1289 && gld${EMULATION_NAME}_search_needed (tmpname,
e56f61be 1290 &n,
ec4eb78a 1291 force));
9c8ebd6a 1292 free (tmpname);
ec4eb78a
L
1293 }
1294 if (found)
1295 break;
1296
04925e1e 1297EOF
04925e1e 1298fi
c1446dba
L
1299if [ "x${USE_LIBPATH}" = xyes ] ; then
1300 case ${target} in
ebe1fac1 1301 *-*-freebsd* | *-*-dragonfly*)
92b93329 1302 fragment <<EOF
d5c8b1f8 1303 if (gld${EMULATION_NAME}_check_ld_elf_hints (l, force))
ebe1fac1
NC
1304 break;
1305EOF
1306 # FreeBSD
1307 ;;
1308
a5244b7e 1309 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 1310 fragment <<EOF
d5c8b1f8 1311 if (gld${EMULATION_NAME}_check_ld_so_conf (l, force))
c1446dba
L
1312 break;
1313
1314EOF
eeaa4577 1315 # Linux
c1446dba
L
1316 ;;
1317 esac
1318fi
92b93329 1319fragment <<EOF
04925e1e
AM
1320 len = strlen (l->name);
1321 for (search = search_head; search != NULL; search = search->next)
1322 {
1323 char *filename;
252b5132 1324
04925e1e
AM
1325 if (search->cmdline)
1326 continue;
1327 filename = (char *) xmalloc (strlen (search->name) + len + 2);
1328 sprintf (filename, "%s/%s", search->name, l->name);
e56f61be
L
1329 nn.name = filename;
1330 if (gld${EMULATION_NAME}_try_needed (&nn, force))
04925e1e
AM
1331 break;
1332 free (filename);
1333 }
1334 if (search != NULL)
1335 break;
1336EOF
92b93329 1337fragment <<EOF
04925e1e 1338 }
252b5132 1339
04925e1e
AM
1340 if (force < 2)
1341 continue;
252b5132 1342
e374f1d9 1343 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
04925e1e
AM
1344 l->name, l->by);
1345 }
1346}
252b5132 1347
41392f03
AM
1348EOF
1349fi
1350
92b93329 1351fragment <<EOF
252b5132 1352
04925e1e 1353/* Look through an expression for an assignment statement. */
252b5132 1354
04925e1e 1355static void
0c7a8e5a 1356gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
04925e1e 1357{
4ea42fb7 1358 bfd_boolean provide = FALSE;
04925e1e
AM
1359
1360 switch (exp->type.node_class)
252b5132 1361 {
04925e1e 1362 case etree_provide:
bded3693 1363 case etree_provided:
4ea42fb7
AM
1364 provide = TRUE;
1365 /* Fall thru */
1366 case etree_assign:
04925e1e
AM
1367 /* We call record_link_assignment even if the symbol is defined.
1368 This is because if it is defined by a dynamic object, we
1369 actually want to use the value defined by the linker script,
1370 not the value from the dynamic object (because we are setting
1371 symbols like etext). If the symbol is defined by a regular
1372 object, then, as it happens, calling record_link_assignment
1373 will do no harm. */
04925e1e 1374 if (strcmp (exp->assign.dst, ".") != 0)
252b5132 1375 {
f13a99db
AM
1376 if (!bfd_elf_record_link_assignment (link_info.output_bfd,
1377 &link_info,
fe21a8fc
L
1378 exp->assign.dst, provide,
1379 exp->assign.hidden))
04925e1e
AM
1380 einfo ("%P%F: failed to record assignment to %s: %E\n",
1381 exp->assign.dst);
252b5132 1382 }
04925e1e
AM
1383 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
1384 break;
252b5132 1385
04925e1e
AM
1386 case etree_binary:
1387 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
1388 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
1389 break;
252b5132 1390
04925e1e
AM
1391 case etree_trinary:
1392 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
1393 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
1394 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
1395 break;
252b5132 1396
04925e1e
AM
1397 case etree_unary:
1398 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1399 break;
252b5132 1400
04925e1e
AM
1401 default:
1402 break;
252b5132
RH
1403 }
1404}
1405
04925e1e
AM
1406
1407/* This is called by the before_allocation routine via
1408 lang_for_each_statement. It locates any assignment statements, and
1409 tells the ELF backend about them, in case they are assignments to
1410 symbols which are referred to by dynamic objects. */
1411
1412static void
0c7a8e5a 1413gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
04925e1e
AM
1414{
1415 if (s->header.type == lang_assignment_statement_enum)
1416 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1417}
1418
41392f03
AM
1419EOF
1420
1421if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
1422 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
1423 ELF_INTERPRETER_SET_DEFAULT="
1424 if (sinterp != NULL)
1425 {
5718918d
AM
1426 sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
1427 sinterp->size = strlen ((char *) sinterp->contents) + 1;
57e6abd2
AO
1428 }
1429
1430"
1431 else
1432 ELF_INTERPRETER_SET_DEFAULT=
1433 fi
92b93329 1434fragment <<EOF
04925e1e 1435
7ee314fa 1436/* used by before_allocation and handle_option. */
4724d37e 1437static void
91d6fa6a 1438gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg)
7ee314fa
AM
1439{
1440 if (*to == NULL)
91d6fa6a 1441 *to = xstrdup (op_arg);
7ee314fa
AM
1442 else
1443 {
1444 size_t to_len = strlen (*to);
91d6fa6a 1445 size_t op_arg_len = strlen (op_arg);
7ee314fa
AM
1446 char *buf;
1447 char *cp = *to;
1448
1449 /* First see whether OPTARG is already in the path. */
1450 do
1451 {
91d6fa6a
NC
1452 if (strncmp (op_arg, cp, op_arg_len) == 0
1453 && (cp[op_arg_len] == 0
1454 || cp[op_arg_len] == config.rpath_separator))
7ee314fa
AM
1455 /* We found it. */
1456 break;
1457
1458 /* Not yet found. */
1459 cp = strchr (cp, config.rpath_separator);
1460 if (cp != NULL)
1461 ++cp;
1462 }
1463 while (cp != NULL);
1464
1465 if (cp == NULL)
1466 {
91d6fa6a 1467 buf = xmalloc (to_len + op_arg_len + 2);
7ee314fa 1468 sprintf (buf, "%s%c%s", *to,
91d6fa6a 1469 config.rpath_separator, op_arg);
7ee314fa
AM
1470 free (*to);
1471 *to = buf;
1472 }
1473 }
1474}
1475
252b5132
RH
1476/* This is called after the sections have been attached to output
1477 sections, but before any sizes or addresses have been set. */
1478
1479static void
0c7a8e5a 1480gld${EMULATION_NAME}_before_allocation (void)
252b5132
RH
1481{
1482 const char *rpath;
1483 asection *sinterp;
7ee314fa 1484 bfd *abfd;
252b5132 1485
b4d040b1 1486 if (is_elf_hash_table (link_info.hash))
a5382c42
MR
1487 {
1488 _bfd_elf_tls_setup (link_info.output_bfd, &link_info);
e1918d23 1489
cde7cb01
MR
1490 /* Make __ehdr_start hidden if it has been referenced, to
1491 prevent the symbol from being dynamic. */
1492 if (!bfd_elf_record_link_assignment (link_info.output_bfd, &link_info,
1493 "__ehdr_start", TRUE, TRUE))
1494 einfo ("%P%F: failed to record assignment to %s: %E\n",
1495 "__ehdr_start");
1496
a5382c42
MR
1497 /* If we are going to make any variable assignments, we need to
1498 let the ELF backend know about them in case the variables are
1499 referred to by dynamic objects. */
1500 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
1501 }
252b5132
RH
1502
1503 /* Let the ELF backend work out the sizes of any sections required
1504 by dynamic linking. */
1505 rpath = command_line.rpath;
1506 if (rpath == NULL)
1507 rpath = (const char *) getenv ("LD_RUN_PATH");
7ee314fa
AM
1508
1509 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)
8dd881b6
L
1510 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1511 {
1512 const char *audit_libs = elf_dt_audit (abfd);
7ee314fa 1513
4724d37e 1514 /* If the input bfd contains an audit entry, we need to add it as
8dd881b6
L
1515 a dep audit entry. */
1516 if (audit_libs && *audit_libs != '\0')
1517 {
1518 char *cp = xstrdup (audit_libs);
1519 do
1520 {
1521 int more = 0;
1522 char *cp2 = strchr (cp, config.rpath_separator);
7ee314fa 1523
8dd881b6
L
1524 if (cp2)
1525 {
1526 *cp2 = '\0';
1527 more = 1;
1528 }
7ee314fa 1529
8dd881b6
L
1530 if (cp != NULL && *cp != '\0')
1531 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp);
1532
1533 cp = more ? ++cp2 : NULL;
1534 }
1535 while (cp != NULL);
1536 }
1537 }
7ee314fa 1538
5a580b3a 1539 if (! (bfd_elf_size_dynamic_sections
f13a99db 1540 (link_info.output_bfd, command_line.soname, rpath,
7ee314fa 1541 command_line.filter_shlib, audit, depaudit,
252b5132 1542 (const char * const *) command_line.auxiliary_filters,
fd91d419 1543 &link_info, &sinterp)))
252b5132 1544 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
8423293d 1545
57e6abd2 1546${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
1547 /* Let the user override the dynamic linker we are using. */
1548 if (command_line.interpreter != NULL
1549 && sinterp != NULL)
1550 {
1551 sinterp->contents = (bfd_byte *) command_line.interpreter;
eea6121a 1552 sinterp->size = strlen (command_line.interpreter) + 1;
252b5132
RH
1553 }
1554
1555 /* Look for any sections named .gnu.warning. As a GNU extensions,
1556 we treat such sections as containing warning messages. We print
1557 out the warning message, and then zero out the section size so
1558 that it does not get copied into the output file. */
1559
1560 {
1561 LANG_FOR_EACH_INPUT_STATEMENT (is)
1562 {
1563 asection *s;
1564 bfd_size_type sz;
1565 char *msg;
b34976b6 1566 bfd_boolean ret;
252b5132 1567
66be1055 1568 if (is->flags.just_syms)
252b5132
RH
1569 continue;
1570
1571 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
1572 if (s == NULL)
1573 continue;
1574
eea6121a 1575 sz = s->size;
1e9cc1c2 1576 msg = (char *) xmalloc ((size_t) (sz + 1));
bc251d50 1577 if (! bfd_get_section_contents (is->the_bfd, s, msg,
8c675694 1578 (file_ptr) 0, sz))
252b5132
RH
1579 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
1580 is->the_bfd);
bc251d50 1581 msg[sz] = '\0';
252b5132
RH
1582 ret = link_info.callbacks->warning (&link_info, msg,
1583 (const char *) NULL,
1584 is->the_bfd, (asection *) NULL,
1585 (bfd_vma) 0);
1586 ASSERT (ret);
1587 free (msg);
1588
9e3be61d
AM
1589 /* Clobber the section size, so that we don't waste space
1590 copying the warning into the output file. If we've already
1591 sized the output section, adjust its size. The adjustment
1592 is on rawsize because targets that size sections early will
1593 have called lang_reset_memory_regions after sizing. */
1594 if (s->output_section != NULL
1595 && s->output_section->rawsize >= s->size)
1596 s->output_section->rawsize -= s->size;
1597
eea6121a 1598 s->size = 0;
11d2f718 1599
9e3be61d
AM
1600 /* Also set SEC_EXCLUDE, so that local symbols defined in the
1601 warning section don't get copied to the output. */
a14a5de3 1602 s->flags |= SEC_EXCLUDE | SEC_KEEP;
252b5132
RH
1603 }
1604 }
8423293d 1605
1e035701 1606 before_allocation_default ();
8423293d 1607
f13a99db 1608 if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info))
8423293d 1609 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
252b5132
RH
1610}
1611
41392f03
AM
1612EOF
1613fi
1614
1615if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
92b93329 1616fragment <<EOF
252b5132 1617
04925e1e
AM
1618/* Try to open a dynamic archive. This is where we know that ELF
1619 dynamic libraries have an extension of .so (or .sl on oddball systems
1620 like hpux). */
1621
b34976b6 1622static bfd_boolean
0c7a8e5a
AM
1623gld${EMULATION_NAME}_open_dynamic_archive
1624 (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
252b5132 1625{
04925e1e
AM
1626 const char *filename;
1627 char *string;
252b5132 1628
66be1055 1629 if (! entry->flags.maybe_archive)
b34976b6 1630 return FALSE;
252b5132 1631
04925e1e 1632 filename = entry->filename;
252b5132 1633
04925e1e
AM
1634 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
1635 is defined, but it does not seem worth the headache to optimize
1636 away those two bytes of space. */
1637 string = (char *) xmalloc (strlen (search->name)
1638 + strlen (filename)
1639 + strlen (arch)
1640#ifdef EXTRA_SHLIB_EXTENSION
1641 + strlen (EXTRA_SHLIB_EXTENSION)
1642#endif
1643 + sizeof "/lib.so");
1644
1645 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
1646
1647#ifdef EXTRA_SHLIB_EXTENSION
1648 /* Try the .so extension first. If that fails build a new filename
1649 using EXTRA_SHLIB_EXTENSION. */
1650 if (! ldfile_try_open_bfd (string, entry))
a26cc967
AM
1651 {
1652 sprintf (string, "%s/lib%s%s%s", search->name,
1653 filename, arch, EXTRA_SHLIB_EXTENSION);
04925e1e
AM
1654#endif
1655
1656 if (! ldfile_try_open_bfd (string, entry))
252b5132 1657 {
04925e1e 1658 free (string);
b34976b6 1659 return FALSE;
04925e1e 1660 }
a26cc967
AM
1661#ifdef EXTRA_SHLIB_EXTENSION
1662 }
1663#endif
252b5132 1664
04925e1e 1665 entry->filename = string;
252b5132 1666
04925e1e
AM
1667 /* We have found a dynamic object to include in the link. The ELF
1668 backend linker will create a DT_NEEDED entry in the .dynamic
1669 section naming this file. If this file includes a DT_SONAME
1670 entry, it will be used. Otherwise, the ELF linker will just use
1671 the name of the file. For an archive found by searching, like
1672 this one, the DT_NEEDED entry should consist of just the name of
1673 the file, without the path information used to find it. Note
1674 that we only need to do this if we have a dynamic object; an
1675 archive will never be referenced by a DT_NEEDED entry.
252b5132 1676
04925e1e
AM
1677 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
1678 very pretty. I haven't been able to think of anything that is
1679 pretty, though. */
1680 if (bfd_check_format (entry->the_bfd, bfd_object)
1681 && (entry->the_bfd->flags & DYNAMIC) != 0)
1682 {
66be1055 1683 ASSERT (entry->flags.maybe_archive && entry->flags.search_dirs);
252b5132 1684
04925e1e 1685 /* Rather than duplicating the logic above. Just use the
1c9acd94 1686 filename we recorded earlier. */
04925e1e 1687
fed2999d 1688 filename = lbasename (entry->filename);
1c9acd94 1689 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
1690 }
1691
b34976b6 1692 return TRUE;
04925e1e
AM
1693}
1694
41392f03
AM
1695EOF
1696fi
cde43e70
AM
1697
1698if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
92b93329 1699fragment <<EOF
41392f03 1700
afd7a018 1701/* A variant of lang_output_section_find used by place_orphan. */
04925e1e 1702
04925e1e 1703static lang_output_section_statement_type *
2a36a117 1704output_rel_find (asection *sec, int isdyn)
04925e1e 1705{
04925e1e 1706 lang_output_section_statement_type *lookup;
ba493122 1707 lang_output_section_statement_type *last = NULL;
2a36a117 1708 lang_output_section_statement_type *last_alloc = NULL;
48f2ff54 1709 lang_output_section_statement_type *last_ro_alloc = NULL;
ba493122
AM
1710 lang_output_section_statement_type *last_rel = NULL;
1711 lang_output_section_statement_type *last_rel_alloc = NULL;
24cdb50a 1712 int rela = sec->name[4] == 'a';
04925e1e 1713
afd7a018
AM
1714 for (lookup = &lang_output_section_statement.head->output_section_statement;
1715 lookup != NULL;
1716 lookup = lookup->next)
04925e1e 1717 {
66c103b7 1718 if (lookup->constraint >= 0
0112cd26 1719 && CONST_STRNEQ (lookup->name, ".rel"))
04925e1e 1720 {
24cdb50a 1721 int lookrela = lookup->name[4] == 'a';
ba493122 1722
2a36a117
AM
1723 /* .rel.dyn must come before all other reloc sections, to suit
1724 GNU ld.so. */
1725 if (isdyn)
1726 break;
1727
1728 /* Don't place after .rel.plt as doing so results in wrong
1729 dynamic tags. */
1730 if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
ba493122 1731 break;
2a36a117
AM
1732
1733 if (rela == lookrela || last_rel == NULL)
24cdb50a 1734 last_rel = lookup;
2a36a117
AM
1735 if ((rela == lookrela || last_rel_alloc == NULL)
1736 && lookup->bfd_section != NULL
ba493122
AM
1737 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1738 last_rel_alloc = lookup;
04925e1e 1739 }
2a36a117
AM
1740
1741 last = lookup;
1742 if (lookup->bfd_section != NULL
1743 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
48f2ff54
AM
1744 {
1745 last_alloc = lookup;
1746 if ((lookup->bfd_section->flags & SEC_READONLY) != 0)
1747 last_ro_alloc = lookup;
1748 }
252b5132 1749 }
ba493122
AM
1750
1751 if (last_rel_alloc)
1752 return last_rel_alloc;
1753
1754 if (last_rel)
1755 return last_rel;
1756
48f2ff54
AM
1757 if (last_ro_alloc)
1758 return last_ro_alloc;
1759
2a36a117
AM
1760 if (last_alloc)
1761 return last_alloc;
1762
ba493122 1763 return last;
252b5132
RH
1764}
1765
1766/* Place an orphan section. We use this to put random SHF_ALLOC
1767 sections in the right segment. */
1768
c2edb4b8 1769static lang_output_section_statement_type *
8a99a385
AM
1770gld${EMULATION_NAME}_place_orphan (asection *s,
1771 const char *secname,
1772 int constraint)
252b5132 1773{
afd7a018
AM
1774 static struct orphan_save hold[] =
1775 {
1776 { ".text",
1777 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1778 0, 0, 0, 0 },
1779 { ".rodata",
1780 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1781 0, 0, 0, 0 },
1782 { ".data",
1783 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1784 0, 0, 0, 0 },
1785 { ".bss",
1786 SEC_ALLOC,
1787 0, 0, 0, 0 },
1788 { 0,
1789 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1790 0, 0, 0, 0 },
1791 { ".interp",
1792 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1793 0, 0, 0, 0 },
1794 { ".sdata",
1795 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
07890c07 1796 0, 0, 0, 0 },
175b7cd4 1797 { ".comment",
07890c07
AM
1798 SEC_HAS_CONTENTS,
1799 0, 0, 0, 0 },
afd7a018
AM
1800 };
1801 enum orphan_save_index
1802 {
1803 orphan_text = 0,
1804 orphan_rodata,
1805 orphan_data,
1806 orphan_bss,
1807 orphan_rel,
1808 orphan_interp,
07890c07
AM
1809 orphan_sdata,
1810 orphan_nonalloc
afd7a018
AM
1811 };
1812 static int orphan_init_done = 0;
6a345e87 1813 struct orphan_save *place;
afd7a018 1814 lang_output_section_statement_type *after;
252b5132 1815 lang_output_section_statement_type *os;
b5f14a6d 1816 lang_output_section_statement_type *match_by_name = NULL;
24cdb50a 1817 int isdyn = 0;
ecca9871
L
1818 int iself = s->owner->xvec->flavour == bfd_target_elf_flavour;
1819 unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL;
252b5132 1820
1049f94e 1821 if (! link_info.relocatable
24cdb50a 1822 && link_info.combreloc
ecca9871 1823 && (s->flags & SEC_ALLOC))
24cdb50a 1824 {
ecca9871
L
1825 if (iself)
1826 switch (sh_type)
1827 {
1828 case SHT_RELA:
1829 secname = ".rela.dyn";
1830 isdyn = 1;
1831 break;
1832 case SHT_REL:
1833 secname = ".rel.dyn";
1834 isdyn = 1;
1835 break;
1836 default:
1837 break;
1838 }
0112cd26 1839 else if (CONST_STRNEQ (secname, ".rel"))
ecca9871
L
1840 {
1841 secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn";
1842 isdyn = 1;
1843 }
24cdb50a 1844 }
aea4bd9d 1845
bcacc0f5 1846 /* Look through the script to see where to place this section. */
d127ecce
AM
1847 if (constraint == 0)
1848 for (os = lang_output_section_find (secname);
1849 os != NULL;
1850 os = next_matching_output_section_statement (os, 0))
1851 {
1852 /* If we don't match an existing output section, tell
1853 lang_insert_orphan to create a new output section. */
1854 constraint = SPECIAL;
1855
1856 if (os->bfd_section != NULL
1857 && (os->bfd_section->flags == 0
1858 || (_bfd_elf_match_sections_by_type (link_info.output_bfd,
1859 os->bfd_section,
1860 s->owner, s)
1861 && ((s->flags ^ os->bfd_section->flags)
1862 & (SEC_LOAD | SEC_ALLOC)) == 0)))
1863 {
1864 /* We already have an output section statement with this
1865 name, and its bfd section has compatible flags.
1866 If the section already exists but does not have any flags
1867 set, then it has been created by the linker, probably as a
1868 result of a --section-start command line switch. */
b9c361e0 1869 lang_add_section (&os->children, s, NULL, os);
d127ecce
AM
1870 return os;
1871 }
b5f14a6d
DD
1872
1873 /* Save unused output sections in case we can match them
1874 against orphans later. */
1875 if (os->bfd_section == NULL)
1876 match_by_name = os;
d127ecce 1877 }
252b5132 1878
b5f14a6d
DD
1879 /* If we didn't match an active output section, see if we matched an
1880 unused one and use that. */
1881 if (match_by_name)
1882 {
b9c361e0 1883 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
b5f14a6d
DD
1884 return match_by_name;
1885 }
1886
afd7a018
AM
1887 if (!orphan_init_done)
1888 {
1889 struct orphan_save *ho;
07890c07 1890
afd7a018
AM
1891 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1892 if (ho->name != NULL)
1893 {
1894 ho->os = lang_output_section_find (ho->name);
1895 if (ho->os != NULL && ho->os->flags == 0)
1896 ho->os->flags = ho->flags;
1897 }
1898 orphan_init_done = 1;
1899 }
252b5132
RH
1900
1901 /* If this is a final link, then always put .gnu.warning.SYMBOL
1902 sections into the .text section to get them out of the way. */
36af4a4e 1903 if (link_info.executable
1049f94e 1904 && ! link_info.relocatable
bcacc0f5 1905 && CONST_STRNEQ (s->name, ".gnu.warning.")
afd7a018 1906 && hold[orphan_text].os != NULL)
252b5132 1907 {
c2edb4b8 1908 os = hold[orphan_text].os;
b9c361e0 1909 lang_add_section (&os->children, s, NULL, os);
c2edb4b8 1910 return os;
252b5132
RH
1911 }
1912
1913 /* Decide which segment the section should go in based on the
1914 section name and section flags. We put loadable .note sections
1915 right after the .interp section, so that the PT_NOTE segment is
1916 stored right after the program headers where the OS can read it
1917 in the first page. */
aea4bd9d 1918
71bfc0ae 1919 place = NULL;
07890c07
AM
1920 if ((s->flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0)
1921 place = &hold[orphan_nonalloc];
1922 else if ((s->flags & SEC_ALLOC) == 0)
71bfc0ae 1923 ;
252b5132 1924 else if ((s->flags & SEC_LOAD) != 0
ecca9871 1925 && ((iself && sh_type == SHT_NOTE)
0112cd26 1926 || (!iself && CONST_STRNEQ (secname, ".note"))))
afd7a018 1927 place = &hold[orphan_interp];
04c932a2 1928 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0)
afd7a018
AM
1929 place = &hold[orphan_bss];
1930 else if ((s->flags & SEC_SMALL_DATA) != 0)
1931 place = &hold[orphan_sdata];
1932 else if ((s->flags & SEC_READONLY) == 0)
1933 place = &hold[orphan_data];
ecca9871 1934 else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL))
0112cd26 1935 || (!iself && CONST_STRNEQ (secname, ".rel")))
afd7a018
AM
1936 && (s->flags & SEC_LOAD) != 0)
1937 place = &hold[orphan_rel];
1938 else if ((s->flags & SEC_CODE) == 0)
1939 place = &hold[orphan_rodata];
1940 else
1941 place = &hold[orphan_text];
71bfc0ae 1942
afd7a018 1943 after = NULL;
5ba47421 1944 if (place != NULL)
252b5132 1945 {
afd7a018 1946 if (place->os == NULL)
5ba47421 1947 {
afd7a018
AM
1948 if (place->name != NULL)
1949 place->os = lang_output_section_find (place->name);
1950 else
1951 place->os = output_rel_find (s, isdyn);
5ba47421 1952 }
afd7a018
AM
1953 after = place->os;
1954 if (after == NULL)
390fbbf1
AM
1955 after = lang_output_section_find_by_flags
1956 (s, &place->os, _bfd_elf_match_sections_by_type);
afd7a018
AM
1957 if (after == NULL)
1958 /* *ABS* is always the first output section statement. */
1959 after = &lang_output_section_statement.head->output_section_statement;
252b5132
RH
1960 }
1961
c2edb4b8 1962 return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL);
252b5132 1963}
c56feb2b
AM
1964EOF
1965fi
1966
eaeb0a9d 1967if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then
92b93329 1968fragment <<EOF
252b5132 1969
deb04cdb 1970static void
eaeb0a9d 1971gld${EMULATION_NAME}_after_allocation (void)
deb04cdb 1972{
f13a99db
AM
1973 bfd_boolean need_layout = bfd_elf_discard_info (link_info.output_bfd,
1974 &link_info);
8ded5a0f 1975 gld${EMULATION_NAME}_map_segments (need_layout);
73d074b4 1976}
41392f03
AM
1977EOF
1978fi
1979
1980if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
92b93329 1981fragment <<EOF
252b5132
RH
1982
1983static char *
0c7a8e5a 1984gld${EMULATION_NAME}_get_script (int *isfile)
252b5132
RH
1985EOF
1986
1987if test -n "$COMPILE_IN"
1988then
1989# Scripts compiled in.
1990
1991# sed commands to quote an ld script as a C string.
597e2591 1992sc="-f stringify.sed"
252b5132 1993
92b93329 1994fragment <<EOF
60bcf0fa 1995{
252b5132
RH
1996 *isfile = 0;
1997
1049f94e 1998 if (link_info.relocatable && config.build_constructors)
597e2591 1999 return
252b5132 2000EOF
afd7a018
AM
2001sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2002echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
2003sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2004echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2005sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
61585df2 2006if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
afd7a018
AM
2007echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2008sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 2009fi
36af4a4e
JJ
2010if test -n "$GENERATE_PIE_SCRIPT" ; then
2011if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
8c37241b
JJ
2012echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c
2013echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2014echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2015sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
36af4a4e 2016echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2017sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
36af4a4e 2018fi
afd7a018
AM
2019echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c
2020sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
36af4a4e 2021fi
252b5132 2022if test -n "$GENERATE_SHLIB_SCRIPT" ; then
82434356 2023if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
8c37241b
JJ
2024echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c
2025echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2026echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2027sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
db6751f2 2028echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2029sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
82434356 2030fi
afd7a018
AM
2031echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
2032sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 2033fi
82434356 2034if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
8c37241b 2035echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2036echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018
AM
2037sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
2038echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
2039sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
82434356 2040fi
afd7a018
AM
2041echo ' ; else return' >> e${EMULATION_NAME}.c
2042sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2043echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
2044
2045else
2046# Scripts read from the filesystem.
2047
92b93329 2048fragment <<EOF
60bcf0fa 2049{
252b5132
RH
2050 *isfile = 1;
2051
1049f94e 2052 if (link_info.relocatable && config.build_constructors)
252b5132 2053 return "ldscripts/${EMULATION_NAME}.xu";
1049f94e 2054 else if (link_info.relocatable)
252b5132
RH
2055 return "ldscripts/${EMULATION_NAME}.xr";
2056 else if (!config.text_read_only)
2057 return "ldscripts/${EMULATION_NAME}.xbn";
a060b769
AM
2058EOF
2059if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
2060else
92b93329 2061fragment <<EOF
252b5132
RH
2062 else if (!config.magic_demand_paged)
2063 return "ldscripts/${EMULATION_NAME}.xn";
a060b769
AM
2064EOF
2065fi
36af4a4e
JJ
2066if test -n "$GENERATE_PIE_SCRIPT" ; then
2067if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2068fragment <<EOF
8c37241b 2069 else if (link_info.pie && link_info.combreloc
fbfca19e 2070 && link_info.relro && (link_info.flags & DF_BIND_NOW))
8c37241b 2071 return "ldscripts/${EMULATION_NAME}.xdw";
36af4a4e
JJ
2072 else if (link_info.pie && link_info.combreloc)
2073 return "ldscripts/${EMULATION_NAME}.xdc";
2074EOF
2075fi
92b93329 2076fragment <<EOF
36af4a4e
JJ
2077 else if (link_info.pie)
2078 return "ldscripts/${EMULATION_NAME}.xd";
2079EOF
2080fi
a060b769
AM
2081if test -n "$GENERATE_SHLIB_SCRIPT" ; then
2082if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2083fragment <<EOF
8c37241b 2084 else if (link_info.shared && link_info.combreloc
fbfca19e 2085 && link_info.relro && (link_info.flags & DF_BIND_NOW))
8c37241b 2086 return "ldscripts/${EMULATION_NAME}.xsw";
a060b769
AM
2087 else if (link_info.shared && link_info.combreloc)
2088 return "ldscripts/${EMULATION_NAME}.xsc";
2089EOF
2090fi
92b93329 2091fragment <<EOF
252b5132
RH
2092 else if (link_info.shared)
2093 return "ldscripts/${EMULATION_NAME}.xs";
a060b769
AM
2094EOF
2095fi
2096if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2097fragment <<EOF
8c37241b 2098 else if (link_info.combreloc && link_info.relro
fbfca19e 2099 && (link_info.flags & DF_BIND_NOW))
8c37241b 2100 return "ldscripts/${EMULATION_NAME}.xw";
a060b769
AM
2101 else if (link_info.combreloc)
2102 return "ldscripts/${EMULATION_NAME}.xc";
2103EOF
2104fi
92b93329 2105fragment <<EOF
252b5132
RH
2106 else
2107 return "ldscripts/${EMULATION_NAME}.x";
2108}
252b5132 2109
3b108066 2110EOF
41392f03
AM
2111fi
2112fi
3b108066 2113
e0ee487b 2114if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
92b93329 2115fragment <<EOF
e0ee487b
L
2116 $PARSE_AND_LIST_PROLOGUE
2117EOF
2118fi
2119
92b93329 2120fragment <<EOF
e0ee487b 2121
6c1439be
L
2122#define OPTION_DISABLE_NEW_DTAGS (400)
2123#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
a1ab1d2a 2124#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
65765700 2125#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
b58f81ae 2126#define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
fdc90cb4 2127#define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1)
c0065db7 2128#define OPTION_BUILD_ID (OPTION_HASH_STYLE + 1)
7ee314fa 2129#define OPTION_AUDIT (OPTION_BUILD_ID + 1)
e13629bc 2130
3bcf5557 2131static void
0c7a8e5a
AM
2132gld${EMULATION_NAME}_add_options
2133 (int ns, char **shortopts, int nl, struct option **longopts,
2134 int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
e0ee487b 2135{
fb42df5e
AM
2136EOF
2137if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2138fragment <<EOF
7ee314fa 2139 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:";
fb42df5e
AM
2140EOF
2141else
2142fragment <<EOF
2143 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
2144EOF
2145fi
2146fragment <<EOF
3bcf5557 2147 static const struct option xtra_long[] = {
fb42df5e
AM
2148EOF
2149if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2150fragment <<EOF
7ee314fa 2151 {"audit", required_argument, NULL, OPTION_AUDIT},
fb42df5e
AM
2152 {"Bgroup", no_argument, NULL, OPTION_GROUP},
2153EOF
2154fi
2155fragment <<EOF
2156 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
e0ee487b 2157EOF
e0ee487b 2158if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2159fragment <<EOF
fb42df5e 2160 {"depaudit", required_argument, NULL, 'P'},
3bcf5557
AM
2161 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
2162 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
2163 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
b58f81ae 2164 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
fdc90cb4 2165 {"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
e0ee487b
L
2166EOF
2167fi
e0ee487b 2168if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
92b93329 2169fragment <<EOF
3bcf5557 2170 $PARSE_AND_LIST_LONGOPTS
e0ee487b
L
2171EOF
2172fi
92b93329 2173fragment <<EOF
3bcf5557
AM
2174 {NULL, no_argument, NULL, 0}
2175 };
2176
2177 *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
2178 memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
2179 *longopts = (struct option *)
2180 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
2181 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
2182}
04925e1e 2183
24382dca 2184#define DEFAULT_BUILD_ID_STYLE "sha1"
c0065db7 2185
3bcf5557 2186static bfd_boolean
0c7a8e5a 2187gld${EMULATION_NAME}_handle_option (int optc)
e0ee487b 2188{
e0ee487b
L
2189 switch (optc)
2190 {
2191 default:
3bcf5557 2192 return FALSE;
6c1439be 2193
c0065db7 2194 case OPTION_BUILD_ID:
30e8ee25 2195 if (emit_note_gnu_build_id != NULL)
c0065db7 2196 {
30e8ee25
AM
2197 free ((char *) emit_note_gnu_build_id);
2198 emit_note_gnu_build_id = NULL;
c0065db7
RM
2199 }
2200 if (optarg == NULL)
2201 optarg = DEFAULT_BUILD_ID_STYLE;
2202 if (strcmp (optarg, "none"))
30e8ee25 2203 emit_note_gnu_build_id = xstrdup (optarg);
c0065db7 2204 break;
fb42df5e
AM
2205
2206EOF
2207
2208if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2209fragment <<EOF
7ee314fa 2210 case OPTION_AUDIT:
4724d37e 2211 gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg);
7ee314fa 2212 break;
fb42df5e 2213
7ee314fa
AM
2214 case 'P':
2215 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg);
2216 break;
c0065db7 2217
6c1439be 2218 case OPTION_DISABLE_NEW_DTAGS:
b34976b6 2219 link_info.new_dtags = FALSE;
6c1439be
L
2220 break;
2221
2222 case OPTION_ENABLE_NEW_DTAGS:
b34976b6 2223 link_info.new_dtags = TRUE;
6c1439be
L
2224 break;
2225
65765700 2226 case OPTION_EH_FRAME_HDR:
b34976b6 2227 link_info.eh_frame_hdr = TRUE;
65765700
JJ
2228 break;
2229
a1ab1d2a
UD
2230 case OPTION_GROUP:
2231 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
2232 /* Groups must be self-contained. */
560e09e9
NC
2233 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2234 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
a1ab1d2a
UD
2235 break;
2236
b58f81ae
DJ
2237 case OPTION_EXCLUDE_LIBS:
2238 add_excluded_libs (optarg);
2239 break;
2240
fdc90cb4
JJ
2241 case OPTION_HASH_STYLE:
2242 link_info.emit_hash = FALSE;
2243 link_info.emit_gnu_hash = FALSE;
2244 if (strcmp (optarg, "sysv") == 0)
2245 link_info.emit_hash = TRUE;
2246 else if (strcmp (optarg, "gnu") == 0)
2247 link_info.emit_gnu_hash = TRUE;
2248 else if (strcmp (optarg, "both") == 0)
2249 {
2250 link_info.emit_hash = TRUE;
2251 link_info.emit_gnu_hash = TRUE;
2252 }
2253 else
2254 einfo (_("%P%F: invalid hash style \`%s'\n"), optarg);
2255 break;
2256
fb42df5e
AM
2257EOF
2258fi
2259fragment <<EOF
e0ee487b 2260 case 'z':
fb42df5e
AM
2261 if (strcmp (optarg, "defs") == 0)
2262 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2263 else if (strcmp (optarg, "muldefs") == 0)
2264 link_info.allow_multiple_definition = TRUE;
2265 else if (CONST_STRNEQ (optarg, "max-page-size="))
2266 {
2267 char *end;
2268
2269 config.maxpagesize = strtoul (optarg + 14, &end, 0);
2270 if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0)
2271 einfo (_("%P%F: invalid maxium page size \`%s'\n"),
2272 optarg + 14);
2273 }
2274 else if (CONST_STRNEQ (optarg, "common-page-size="))
2275 {
2276 char *end;
2277 config.commonpagesize = strtoul (optarg + 17, &end, 0);
2278 if (*end
2279 || (config.commonpagesize & (config.commonpagesize - 1)) != 0)
2280 einfo (_("%P%F: invalid common page size \`%s'\n"),
2281 optarg + 17);
2282 }
04c3a755
NS
2283 else if (CONST_STRNEQ (optarg, "stack-size="))
2284 {
2285 char *end;
2286 link_info.stacksize = strtoul (optarg + 11, &end, 0);
2287 if (*end || link_info.stacksize < 0)
2288 einfo (_("%P%F: invalid stack size \`%s'\n"), optarg + 11);
2289 if (!link_info.stacksize)
2290 /* Use -1 for explicit no-stack, because zero means
2291 'default'. */
2292 link_info.stacksize = -1;
2293 }
fb42df5e
AM
2294 else if (strcmp (optarg, "execstack") == 0)
2295 {
2296 link_info.execstack = TRUE;
2297 link_info.noexecstack = FALSE;
2298 }
2299 else if (strcmp (optarg, "noexecstack") == 0)
2300 {
2301 link_info.noexecstack = TRUE;
2302 link_info.execstack = FALSE;
2303 }
2304EOF
2305if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2306fragment <<EOF
b039ef04
L
2307 else if (strcmp (optarg, "global") == 0)
2308 link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL;
fb42df5e 2309 else if (strcmp (optarg, "initfirst") == 0)
e0ee487b
L
2310 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
2311 else if (strcmp (optarg, "interpose") == 0)
2312 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
2313 else if (strcmp (optarg, "loadfltr") == 0)
2314 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
2315 else if (strcmp (optarg, "nodefaultlib") == 0)
2316 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
2317 else if (strcmp (optarg, "nodelete") == 0)
2318 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
2319 else if (strcmp (optarg, "nodlopen") == 0)
2320 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
2321 else if (strcmp (optarg, "nodump") == 0)
2322 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
2323 else if (strcmp (optarg, "now") == 0)
2324 {
2325 link_info.flags |= (bfd_vma) DF_BIND_NOW;
2326 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
2327 }
5fa222e4
AM
2328 else if (strcmp (optarg, "lazy") == 0)
2329 {
2330 link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
2331 link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
2332 }
e0ee487b
L
2333 else if (strcmp (optarg, "origin") == 0)
2334 {
2335 link_info.flags |= (bfd_vma) DF_ORIGIN;
2336 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
2337 }
db6751f2 2338 else if (strcmp (optarg, "combreloc") == 0)
b34976b6 2339 link_info.combreloc = TRUE;
db6751f2 2340 else if (strcmp (optarg, "nocombreloc") == 0)
b34976b6 2341 link_info.combreloc = FALSE;
8bd621d8 2342 else if (strcmp (optarg, "nocopyreloc") == 0)
0c7a8e5a 2343 link_info.nocopyreloc = TRUE;
8c37241b
JJ
2344 else if (strcmp (optarg, "relro") == 0)
2345 link_info.relro = TRUE;
2346 else if (strcmp (optarg, "norelro") == 0)
2347 link_info.relro = FALSE;
c192a133
AM
2348 else if (strcmp (optarg, "text") == 0)
2349 link_info.error_textrel = TRUE;
2350 else if (strcmp (optarg, "notext") == 0)
2351 link_info.error_textrel = FALSE;
2352 else if (strcmp (optarg, "textoff") == 0)
2353 link_info.error_textrel = FALSE;
88b882e9 2354EOF
fb42df5e 2355fi
88b882e9 2356
92b93329 2357fragment <<EOF
fb42df5e
AM
2358 else
2359 einfo (_("%P: warning: -z %s ignored.\n"), optarg);
6c1439be 2360 break;
e0ee487b 2361EOF
e0ee487b
L
2362
2363if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
92b93329 2364fragment <<EOF
e0ee487b
L
2365 $PARSE_AND_LIST_ARGS_CASES
2366EOF
2367fi
2368
92b93329 2369fragment <<EOF
e0ee487b
L
2370 }
2371
3bcf5557 2372 return TRUE;
e0ee487b
L
2373}
2374
41392f03 2375EOF
41392f03 2376
4b209b22 2377if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
92b93329 2378fragment <<EOF
41392f03 2379
e0ee487b 2380static void
0c7a8e5a 2381gld${EMULATION_NAME}_list_options (FILE * file)
e0ee487b 2382{
fb42df5e
AM
2383EOF
2384if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2385fragment <<EOF
7ee314fa
AM
2386 fprintf (file, _("\
2387 --audit=AUDITLIB Specify a library to use for auditing\n"));
2388 fprintf (file, _("\
fb42df5e
AM
2389 -Bgroup Selects group name lookup rules for DSO\n"));
2390EOF
2391fi
2392fragment <<EOF
2393 fprintf (file, _("\
2394 --build-id[=STYLE] Generate build ID note\n"));
e0ee487b 2395EOF
e0ee487b 2396if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2397fragment <<EOF
442996ee 2398 fprintf (file, _("\
fb42df5e 2399 -P AUDITLIB, --depaudit=AUDITLIB\n" "\
4724d37e 2400 Specify a library to use for auditing dependencies\n"));
442996ee
AM
2401 fprintf (file, _("\
2402 --disable-new-dtags Disable new dynamic tags\n"));
2403 fprintf (file, _("\
2404 --enable-new-dtags Enable new dynamic tags\n"));
2405 fprintf (file, _("\
2406 --eh-frame-hdr Create .eh_frame_hdr section\n"));
2407 fprintf (file, _("\
fb42df5e
AM
2408 --exclude-libs=LIBS Make all symbols in LIBS hidden\n"));
2409 fprintf (file, _("\
442996ee
AM
2410 --hash-style=STYLE Set hash style to sysv, gnu or both\n"));
2411 fprintf (file, _("\
2412 -z combreloc Merge dynamic relocs into one section and sort\n"));
fb42df5e
AM
2413EOF
2414fi
2415
2416fragment <<EOF
2417 fprintf (file, _("\
2418 -z common-page-size=SIZE Set common page size to SIZE\n"));
442996ee
AM
2419 fprintf (file, _("\
2420 -z defs Report unresolved symbols in object files.\n"));
2421 fprintf (file, _("\
2422 -z execstack Mark executable as requiring executable stack\n"));
fb42df5e
AM
2423EOF
2424
2425if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2426fragment <<EOF
442996ee 2427 fprintf (file, _("\
b039ef04 2428 -z global Make symbols in DSO available for subsequently\n\
4724d37e 2429 loaded objects\n"));
b039ef04 2430 fprintf (file, _("\
442996ee
AM
2431 -z initfirst Mark DSO to be initialized first at runtime\n"));
2432 fprintf (file, _("\
2433 -z interpose Mark object to interpose all DSOs but executable\n"));
2434 fprintf (file, _("\
2435 -z lazy Mark object lazy runtime binding (default)\n"));
2436 fprintf (file, _("\
2437 -z loadfltr Mark object requiring immediate process\n"));
fb42df5e
AM
2438EOF
2439fi
2440
2441fragment <<EOF
2442 fprintf (file, _("\
2443 -z max-page-size=SIZE Set maximum page size to SIZE\n"));
442996ee
AM
2444 fprintf (file, _("\
2445 -z muldefs Allow multiple definitions\n"));
fb42df5e
AM
2446EOF
2447
2448if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2449fragment <<EOF
442996ee
AM
2450 fprintf (file, _("\
2451 -z nocombreloc Don't merge dynamic relocs into one section\n"));
2452 fprintf (file, _("\
2453 -z nocopyreloc Don't create copy relocs\n"));
2454 fprintf (file, _("\
2455 -z nodefaultlib Mark object not to use default search paths\n"));
2456 fprintf (file, _("\
2457 -z nodelete Mark DSO non-deletable at runtime\n"));
2458 fprintf (file, _("\
2459 -z nodlopen Mark DSO not available to dlopen\n"));
2460 fprintf (file, _("\
2461 -z nodump Mark DSO not available to dldump\n"));
fb42df5e
AM
2462EOF
2463fi
2464fragment <<EOF
442996ee
AM
2465 fprintf (file, _("\
2466 -z noexecstack Mark executable as not requiring executable stack\n"));
88b882e9 2467EOF
fb42df5e 2468if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2469fragment <<EOF
442996ee
AM
2470 fprintf (file, _("\
2471 -z norelro Don't create RELRO program header\n"));
442996ee
AM
2472 fprintf (file, _("\
2473 -z now Mark object non-lazy runtime binding\n"));
2474 fprintf (file, _("\
2475 -z origin Mark object requiring immediate \$ORIGIN\n\
4724d37e 2476 processing at runtime\n"));
442996ee
AM
2477 fprintf (file, _("\
2478 -z relro Create RELRO program header\n"));
07e15f87
NS
2479 fprintf (file, _("\
2480 -z stacksize=SIZE Set size of stack segment\n"));
88b882e9 2481EOF
e0ee487b
L
2482fi
2483
2484if test -n "$PARSE_AND_LIST_OPTIONS" ; then
92b93329 2485fragment <<EOF
e0ee487b
L
2486 $PARSE_AND_LIST_OPTIONS
2487EOF
2488fi
2489
92b93329 2490fragment <<EOF
e0ee487b
L
2491}
2492EOF
e0ee487b
L
2493
2494if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
92b93329 2495fragment <<EOF
e0ee487b
L
2496 $PARSE_AND_LIST_EPILOGUE
2497EOF
2498fi
41392f03 2499fi
e0ee487b 2500
92b93329 2501fragment <<EOF
252b5132 2502
60bcf0fa 2503struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
252b5132 2504{
41392f03
AM
2505 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
2506 ${LDEMUL_SYSLIB-syslib_default},
2507 ${LDEMUL_HLL-hll_default},
eeaa4577 2508 ${LDEMUL_AFTER_PARSE-after_parse_default},
41392f03 2509 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
eaeb0a9d 2510 ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation},
41392f03
AM
2511 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
2512 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
2513 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
2514 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
252b5132
RH
2515 "${EMULATION_NAME}",
2516 "${OUTPUT_FORMAT}",
eaeb0a9d 2517 ${LDEMUL_FINISH-finish_default},
41392f03
AM
2518 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
2519 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
2520 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
2521 ${LDEMUL_SET_SYMBOLS-NULL},
3bcf5557
AM
2522 ${LDEMUL_PARSE_ARGS-NULL},
2523 gld${EMULATION_NAME}_add_options,
2524 gld${EMULATION_NAME}_handle_option,
41392f03 2525 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
4b209b22 2526 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
4a43e768 2527 ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
41392f03 2528 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
fac1652d 2529 ${LDEMUL_NEW_VERS_PATTERN-NULL}
252b5132
RH
2530};
2531EOF
This page took 0.799903 seconds and 4 git commands to generate.