Check local IFUNC calls
[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 ${EMULATION_NAME}
e3dc8847 15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
66be1055 16 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
aa820537 17 Free Software Foundation, Inc.
252b5132
RH
18 Written by Steve Chamberlain <sac@cygnus.com>
19 ELF support by Ian Lance Taylor <ian@cygnus.com>
20
f96b4a7b
NC
21 This file is part of the GNU Binutils.
22
23 This program is free software; you can redistribute it and/or modify
24 it under the terms of the GNU General Public License as published by
25 the Free Software Foundation; either version 3 of the License, or
26 (at your option) any later version.
27
28 This program is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 GNU General Public License for more details.
32
33 You should have received a copy of the GNU General Public License
34 along with this program; if not, write to the Free Software
35 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
36 MA 02110-1301, USA. */
252b5132
RH
37
38#define TARGET_IS_${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${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
252b5132
RH
108}
109
41392f03
AM
110EOF
111fi
112
4a43e768 113if test x"$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
04925e1e
AM
168/* On Linux, it's possible to have different versions of the same
169 shared library linked against different versions of libc. The
170 dynamic linker somehow tags which libc version to use in
171 /etc/ld.so.cache, and, based on the libc that it sees in the
172 executable, chooses which version of the shared library to use.
252b5132 173
04925e1e
AM
174 We try to do a similar check here by checking whether this shared
175 library needs any other shared libraries which may conflict with
176 libraries we have already included in the link. If it does, we
177 skip it, and try to find another shared library farther on down the
178 link path.
252b5132 179
04925e1e
AM
180 This is called via lang_for_each_input_file.
181 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
f813923c 182 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
04925e1e 183 a conflicting version. */
252b5132 184
04925e1e 185static void
0c7a8e5a 186gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
04925e1e 187{
1c9acd94 188 const char *soname;
04925e1e 189 struct bfd_link_needed_list *l;
252b5132 190
04925e1e
AM
191 if (global_vercheck_failed)
192 return;
193 if (s->the_bfd == NULL
194 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
195 return;
252b5132 196
04925e1e
AM
197 soname = bfd_elf_get_dt_soname (s->the_bfd);
198 if (soname == NULL)
fed2999d 199 soname = lbasename (bfd_get_filename (s->the_bfd));
04925e1e
AM
200
201 for (l = global_vercheck_needed; l != NULL; l = l->next)
202 {
203 const char *suffix;
204
42627821 205 if (filename_cmp (soname, l->name) == 0)
04925e1e
AM
206 {
207 /* Probably can't happen, but it's an easy check. */
208 continue;
252b5132
RH
209 }
210
04925e1e 211 if (strchr (l->name, '/') != NULL)
252b5132
RH
212 continue;
213
04925e1e
AM
214 suffix = strstr (l->name, ".so.");
215 if (suffix == NULL)
216 continue;
217
218 suffix += sizeof ".so." - 1;
219
42627821 220 if (filename_ncmp (soname, l->name, suffix - l->name) == 0)
04925e1e
AM
221 {
222 /* Here we know that S is a dynamic object FOO.SO.VER1, and
0c7a8e5a
AM
223 the object we are considering needs a dynamic object
224 FOO.SO.VER2, and VER1 and VER2 are different. This
225 appears to be a version mismatch, so we tell the caller
226 to try a different version of this library. */
b34976b6 227 global_vercheck_failed = TRUE;
04925e1e
AM
228 return;
229 }
252b5132
RH
230 }
231}
232
252b5132 233
04925e1e
AM
234/* See if an input file matches a DT_NEEDED entry by running stat on
235 the file. */
236
237static void
0c7a8e5a 238gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
252b5132 239{
04925e1e
AM
240 struct stat st;
241 const char *suffix;
242 const char *soname;
252b5132 243
e13629bc 244 if (global_found != NULL)
04925e1e
AM
245 return;
246 if (s->the_bfd == NULL)
247 return;
e13629bc
AM
248
249 /* If this input file was an as-needed entry, and wasn't found to be
250 needed at the stage it was linked, then don't say we have loaded it. */
251 if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86 252 return;
04925e1e
AM
253
254 if (bfd_stat (s->the_bfd, &st) != 0)
252b5132 255 {
04925e1e
AM
256 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
257 return;
258 }
252b5132 259
9eabd475
ZW
260 /* Some operating systems, e.g. Windows, do not provide a meaningful
261 st_ino; they always set it to zero. (Windows does provide a
262 meaningful st_dev.) Do not indicate a duplicate library in that
263 case. While there is no guarantee that a system that provides
264 meaningful inode numbers will never set st_ino to zero, this is
265 merely an optimization, so we do not need to worry about false
266 negatives. */
04925e1e 267 if (st.st_dev == global_stat.st_dev
9eabd475
ZW
268 && st.st_ino == global_stat.st_ino
269 && st.st_ino != 0)
04925e1e 270 {
e13629bc 271 global_found = s;
04925e1e
AM
272 return;
273 }
252b5132 274
04925e1e
AM
275 /* We issue a warning if it looks like we are including two
276 different versions of the same shared library. For example,
277 there may be a problem if -lc picks up libc.so.6 but some other
278 shared library has a DT_NEEDED entry of libc.so.5. This is a
f813923c 279 heuristic test, and it will only work if the name looks like
04925e1e
AM
280 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
281 If we really want to issue warnings about mixing version numbers
282 of shared libraries, we need to find a better way. */
252b5132 283
04925e1e
AM
284 if (strchr (global_needed->name, '/') != NULL)
285 return;
286 suffix = strstr (global_needed->name, ".so.");
287 if (suffix == NULL)
288 return;
289 suffix += sizeof ".so." - 1;
252b5132 290
04925e1e
AM
291 soname = bfd_elf_get_dt_soname (s->the_bfd);
292 if (soname == NULL)
fed2999d 293 soname = lbasename (s->filename);
252b5132 294
42627821 295 if (filename_ncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
04925e1e 296 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
1c9acd94 297 global_needed->name, global_needed->by, soname);
252b5132
RH
298}
299
e56f61be
L
300struct dt_needed
301{
302 bfd *by;
303 const char *name;
304};
04925e1e 305
252b5132
RH
306/* This function is called for each possible name for a dynamic object
307 named by a DT_NEEDED entry. The FORCE parameter indicates whether
308 to skip the check for a conflicting version. */
309
b34976b6 310static bfd_boolean
e56f61be
L
311gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
312 int force)
252b5132
RH
313{
314 bfd *abfd;
e56f61be 315 const char *name = needed->name;
ec4eb78a 316 const char *soname;
96d56e9f 317 int link_class;
252b5132 318
f13a99db 319 abfd = bfd_openr (name, bfd_get_target (link_info.output_bfd));
252b5132 320 if (abfd == NULL)
b34976b6 321 return FALSE;
4a114e3e
L
322
323 /* Linker needs to decompress sections. */
324 abfd->flags |= BFD_DECOMPRESS;
325
252b5132
RH
326 if (! bfd_check_format (abfd, bfd_object))
327 {
cde43e70 328 bfd_close (abfd);
b34976b6 329 return FALSE;
252b5132
RH
330 }
331 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
332 {
cde43e70 333 bfd_close (abfd);
b34976b6 334 return FALSE;
252b5132
RH
335 }
336
c4bb8067 337 /* For DT_NEEDED, they have to match. */
f13a99db 338 if (abfd->xvec != link_info.output_bfd->xvec)
c4bb8067
L
339 {
340 bfd_close (abfd);
b34976b6 341 return FALSE;
c4bb8067
L
342 }
343
252b5132
RH
344 /* Check whether this object would include any conflicting library
345 versions. If FORCE is set, then we skip this check; we use this
346 the second time around, if we couldn't find any compatible
347 instance of the shared library. */
348
349 if (! force)
350 {
91d6fa6a 351 struct bfd_link_needed_list *needs;
252b5132 352
91d6fa6a 353 if (! bfd_elf_get_bfd_needed_list (abfd, &needs))
252b5132
RH
354 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
355
91d6fa6a 356 if (needs != NULL)
252b5132 357 {
91d6fa6a 358 global_vercheck_needed = needs;
b34976b6 359 global_vercheck_failed = FALSE;
252b5132
RH
360 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
361 if (global_vercheck_failed)
362 {
cde43e70 363 bfd_close (abfd);
b34976b6 364 /* Return FALSE to force the caller to move on to try
0c7a8e5a 365 another file on the search path. */
b34976b6 366 return FALSE;
252b5132
RH
367 }
368
369 /* But wait! It gets much worse. On Linux, if a shared
0c7a8e5a
AM
370 library does not use libc at all, we are supposed to skip
371 it the first time around in case we encounter a shared
372 library later on with the same name which does use the
373 version of libc that we want. This is much too horrible
374 to use on any system other than Linux. */
252b5132
RH
375
376EOF
377case ${target} in
a5244b7e 378 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 379 fragment <<EOF
252b5132
RH
380 {
381 struct bfd_link_needed_list *l;
382
91d6fa6a 383 for (l = needs; l != NULL; l = l->next)
0112cd26 384 if (CONST_STRNEQ (l->name, "libc.so"))
252b5132
RH
385 break;
386 if (l == NULL)
387 {
cde43e70 388 bfd_close (abfd);
b34976b6 389 return FALSE;
252b5132
RH
390 }
391 }
392
393EOF
394 ;;
395esac
92b93329 396fragment <<EOF
252b5132
RH
397 }
398 }
399
400 /* We've found a dynamic object matching the DT_NEEDED entry. */
401
04925e1e
AM
402 /* We have already checked that there is no other input file of the
403 same name. We must now check again that we are not including the
404 same file twice. We need to do this because on many systems
405 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
406 reference libc.so.1. If we have already included libc.so, we
407 don't want to include libc.so.1 if they are the same file, and we
408 can only check that using stat. */
409
410 if (bfd_stat (abfd, &global_stat) != 0)
411 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
ec4eb78a
L
412
413 /* First strip off everything before the last '/'. */
fed2999d 414 soname = lbasename (abfd->filename);
ec4eb78a 415
cd6f1cf3 416 if (verbose)
ec4eb78a
L
417 info_msg (_("found %s at %s\n"), soname, name);
418
e13629bc 419 global_found = NULL;
04925e1e 420 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
e13629bc 421 if (global_found != NULL)
04925e1e 422 {
b34976b6 423 /* Return TRUE to indicate that we found the file, even though
0c7a8e5a 424 we aren't going to do anything with it. */
b34976b6 425 return TRUE;
04925e1e
AM
426 }
427
4a43e768
AM
428 /* Specify the soname to use. */
429 bfd_elf_set_dt_needed_name (abfd, soname);
04925e1e 430
4a43e768
AM
431 /* Tell the ELF linker that we don't want the output file to have a
432 DT_NEEDED entry for this file, unless it is used to resolve
433 references in a regular object. */
96d56e9f 434 link_class = DYN_DT_NEEDED;
e56f61be
L
435
436 /* Tell the ELF linker that we don't want the output file to have a
437 DT_NEEDED entry for this file at all if the entry is from a file
438 with DYN_NO_ADD_NEEDED. */
7e9f0867
AM
439 if (needed->by != NULL
440 && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
96d56e9f 441 link_class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
e56f61be 442
1e9cc1c2 443 bfd_elf_set_dyn_lib_class (abfd, (enum dynamic_lib_link_class) link_class);
04925e1e
AM
444
445 /* Add this file into the symbol table. */
446 if (! bfd_link_add_symbols (abfd, &link_info))
447 einfo ("%F%B: could not read symbols: %E\n", abfd);
448
b34976b6 449 return TRUE;
04925e1e
AM
450}
451
452
453/* Search for a needed file in a path. */
454
b34976b6 455static bfd_boolean
e56f61be
L
456gld${EMULATION_NAME}_search_needed (const char *path,
457 struct dt_needed *n, int force)
04925e1e
AM
458{
459 const char *s;
e56f61be 460 const char *name = n->name;
04925e1e 461 size_t len;
e56f61be 462 struct dt_needed needed;
04925e1e 463
cc5ce052 464 if (name[0] == '/')
e56f61be 465 return gld${EMULATION_NAME}_try_needed (n, force);
cc5ce052 466
04925e1e 467 if (path == NULL || *path == '\0')
b34976b6 468 return FALSE;
e56f61be
L
469
470 needed.by = n->by;
471 needed.name = n->name;
472
04925e1e
AM
473 len = strlen (name);
474 while (1)
475 {
476 char *filename, *sset;
477
c76308d2 478 s = strchr (path, config.rpath_separator);
04925e1e
AM
479 if (s == NULL)
480 s = path + strlen (path);
481
07f1e47a
AM
482#if HAVE_DOS_BASED_FILE_SYSTEM
483 /* Assume a match on the second char is part of drive specifier. */
484 else if (config.rpath_separator == ':'
485 && s == path + 1
486 && ISALPHA (*path))
487 {
488 s = strchr (s + 1, config.rpath_separator);
489 if (s == NULL)
490 s = path + strlen (path);
491 }
492#endif
04925e1e
AM
493 filename = (char *) xmalloc (s - path + len + 2);
494 if (s == path)
495 sset = filename;
496 else
497 {
498 memcpy (filename, path, s - path);
499 filename[s - path] = '/';
500 sset = filename + (s - path) + 1;
501 }
502 strcpy (sset, name);
503
e56f61be
L
504 needed.name = filename;
505 if (gld${EMULATION_NAME}_try_needed (&needed, force))
b34976b6 506 return TRUE;
04925e1e
AM
507
508 free (filename);
509
510 if (*s == '\0')
511 break;
512 path = s + 1;
513 }
514
b34976b6 515 return FALSE;
04925e1e
AM
516}
517
518EOF
9c8ebd6a 519if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 520 fragment <<EOF
9c8ebd6a 521
c76308d2
RS
522/* Add the sysroot to every entry in a path separated by
523 config.rpath_separator. */
9c8ebd6a
DJ
524
525static char *
0c7a8e5a 526gld${EMULATION_NAME}_add_sysroot (const char *path)
9c8ebd6a
DJ
527{
528 int len, colons, i;
529 char *ret, *p;
530
531 len = strlen (path);
532 colons = 0;
533 i = 0;
534 while (path[i])
c76308d2 535 if (path[i++] == config.rpath_separator)
9c8ebd6a
DJ
536 colons++;
537
538 if (path[i])
539 colons++;
540
42644a89 541 len = len + (colons + 1) * strlen (ld_sysroot);
9c8ebd6a
DJ
542 ret = xmalloc (len + 1);
543 strcpy (ret, ld_sysroot);
544 p = ret + strlen (ret);
545 i = 0;
546 while (path[i])
c76308d2 547 if (path[i] == config.rpath_separator)
9c8ebd6a 548 {
0c7a8e5a 549 *p++ = path[i++];
9c8ebd6a
DJ
550 strcpy (p, ld_sysroot);
551 p = p + strlen (p);
9c8ebd6a
DJ
552 }
553 else
554 *p++ = path[i++];
555
556 *p = 0;
557 return ret;
558}
04925e1e 559
3dc16cab
DJ
560EOF
561 case ${target} in
ebe1fac1 562 *-*-freebsd* | *-*-dragonfly*)
92b93329 563 fragment <<EOF
ebe1fac1
NC
564/* Read the system search path the FreeBSD way rather than the Linux way. */
565#ifdef HAVE_ELF_HINTS_H
566#include <elf-hints.h>
567#else
568#include "elf-hints-local.h"
569#endif
570
571static bfd_boolean
572gld${EMULATION_NAME}_check_ld_elf_hints (const char *name, int force)
573{
574 static bfd_boolean initialized;
575 static char *ld_elf_hints;
576 struct dt_needed needed;
577
578 if (!initialized)
579 {
580 FILE *f;
581 char *tmppath;
582
ff7a0acf 583 tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, (const char *) NULL);
ebe1fac1
NC
584 f = fopen (tmppath, FOPEN_RB);
585 free (tmppath);
586 if (f != NULL)
587 {
588 struct elfhints_hdr hdr;
589
590 if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr)
591 && hdr.magic == ELFHINTS_MAGIC
592 && hdr.version == 1)
593 {
594 if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1)
595 {
596 char *b;
597
598 b = xmalloc (hdr.dirlistlen + 1);
599 if (fread (b, 1, hdr.dirlistlen + 1, f) ==
600 hdr.dirlistlen + 1)
601 ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b);
e13629bc 602
ebe1fac1
NC
603 free (b);
604 }
605 }
606 fclose (f);
607 }
608
609 initialized = TRUE;
610 }
611
612 if (ld_elf_hints == NULL)
613 return FALSE;
614
615 needed.by = NULL;
616 needed.name = name;
617 return gld${EMULATION_NAME}_search_needed (ld_elf_hints, & needed,
e13629bc 618 force);
ebe1fac1
NC
619}
620EOF
621 # FreeBSD
622 ;;
623
a5244b7e 624 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
92b93329 625 fragment <<EOF
04925e1e
AM
626/* For a native linker, check the file /etc/ld.so.conf for directories
627 in which we may find shared libraries. /etc/ld.so.conf is really
482e8b32 628 only meaningful on Linux. */
04925e1e 629
d3989512 630struct gld${EMULATION_NAME}_ld_so_conf
04925e1e 631{
d3989512
JJ
632 char *path;
633 size_t len, alloc;
634};
04925e1e 635
dfcffada 636static bfd_boolean
d3989512
JJ
637gld${EMULATION_NAME}_parse_ld_so_conf
638 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
639
640static void
641gld${EMULATION_NAME}_parse_ld_so_conf_include
642 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
643 const char *pattern)
644{
645 char *newp = NULL;
0b48acfe 646#ifdef HAVE_GLOB
d3989512 647 glob_t gl;
0b48acfe 648#endif
d3989512
JJ
649
650 if (pattern[0] != '/')
04925e1e 651 {
d3989512
JJ
652 char *p = strrchr (filename, '/');
653 size_t patlen = strlen (pattern) + 1;
04925e1e 654
d3989512
JJ
655 newp = xmalloc (p - filename + 1 + patlen);
656 memcpy (newp, filename, p - filename + 1);
657 memcpy (newp + (p - filename + 1), pattern, patlen);
658 pattern = newp;
659 }
04925e1e 660
0b48acfe 661#ifdef HAVE_GLOB
d3989512
JJ
662 if (glob (pattern, 0, NULL, &gl) == 0)
663 {
664 size_t i;
665
666 for (i = 0; i < gl.gl_pathc; ++i)
667 gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
668 globfree (&gl);
669 }
0b48acfe
MM
670#else
671 /* If we do not have glob, treat the pattern as a literal filename. */
672 gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
673#endif
d3989512
JJ
674
675 if (newp)
676 free (newp);
677}
678
dfcffada 679static bfd_boolean
d3989512
JJ
680gld${EMULATION_NAME}_parse_ld_so_conf
681 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
682{
683 FILE *f = fopen (filename, FOPEN_RT);
563f4125
JJ
684 char *line;
685 size_t linelen;
d3989512
JJ
686
687 if (f == NULL)
dfcffada 688 return FALSE;
d3989512 689
563f4125
JJ
690 linelen = 256;
691 line = xmalloc (linelen);
692 do
d3989512 693 {
563f4125
JJ
694 char *p = line, *q;
695
696 /* Normally this would use getline(3), but we need to be portable. */
697 while ((q = fgets (p, linelen - (p - line), f)) != NULL
698 && strlen (q) == linelen - (p - line) - 1
699 && line[linelen - 2] != '\n')
700 {
701 line = xrealloc (line, 2 * linelen);
702 p = line + linelen - 1;
703 linelen += linelen;
704 }
705
706 if (q == NULL && p == line)
707 break;
d3989512
JJ
708
709 p = strchr (line, '\n');
710 if (p)
711 *p = '\0';
712
713 /* Because the file format does not know any form of quoting we
714 can search forward for the next '#' character and if found
715 make it terminating the line. */
716 p = strchr (line, '#');
717 if (p)
718 *p = '\0';
719
720 /* Remove leading whitespace. NUL is no whitespace character. */
721 p = line;
722 while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
723 ++p;
724
725 /* If the line is blank it is ignored. */
726 if (p[0] == '\0')
727 continue;
04925e1e 728
0112cd26 729 if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t'))
d3989512
JJ
730 {
731 char *dir, c;
732 p += 8;
733 do
04925e1e 734 {
d3989512
JJ
735 while (*p == ' ' || *p == '\t')
736 ++p;
04925e1e 737
d3989512
JJ
738 if (*p == '\0')
739 break;
252b5132 740
d3989512
JJ
741 dir = p;
742
743 while (*p != ' ' && *p != '\t' && *p)
744 ++p;
745
746 c = *p;
747 *p++ = '\0';
748 if (dir[0] != '\0')
749 gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
750 dir);
751 }
752 while (c != '\0');
753 }
754 else
755 {
756 char *dir = p;
757 while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
758 && *p != '\r' && *p != '\v')
759 ++p;
760
761 while (p != dir && p[-1] == '/')
762 --p;
763 if (info->path == NULL)
764 {
765 info->alloc = p - dir + 1 + 256;
766 info->path = xmalloc (info->alloc);
767 info->len = 0;
768 }
04925e1e
AM
769 else
770 {
d3989512
JJ
771 if (info->len + 1 + (p - dir) >= info->alloc)
772 {
773 info->alloc += p - dir + 256;
774 info->path = xrealloc (info->path, info->alloc);
775 }
c76308d2 776 info->path[info->len++] = config.rpath_separator;
04925e1e 777 }
d3989512
JJ
778 memcpy (info->path + info->len, dir, p - dir);
779 info->len += p - dir;
780 info->path[info->len] = '\0';
781 }
782 }
563f4125 783 while (! feof (f));
d3989512
JJ
784 free (line);
785 fclose (f);
dfcffada 786 return TRUE;
d3989512 787}
252b5132 788
d3989512
JJ
789static bfd_boolean
790gld${EMULATION_NAME}_check_ld_so_conf (const char *name, int force)
791{
792 static bfd_boolean initialized;
793 static char *ld_so_conf;
794 struct dt_needed needed;
252b5132 795
d3989512
JJ
796 if (! initialized)
797 {
798 char *tmppath;
799 struct gld${EMULATION_NAME}_ld_so_conf info;
9c8ebd6a 800
d3989512
JJ
801 info.path = NULL;
802 info.len = info.alloc = 0;
ff7a0acf
AM
803 tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf",
804 (const char *) NULL);
dfcffada
AM
805 if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath))
806 {
807 free (tmppath);
ff7a0acf
AM
808 tmppath = concat (ld_sysroot, "/etc/ld.so.conf",
809 (const char *) NULL);
dfcffada
AM
810 gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
811 }
d3989512 812 free (tmppath);
dfcffada 813
d3989512
JJ
814 if (info.path)
815 {
816 char *d = gld${EMULATION_NAME}_add_sysroot (info.path);
817 free (info.path);
818 ld_so_conf = d;
04925e1e 819 }
b34976b6 820 initialized = TRUE;
04925e1e 821 }
49e56c49 822
04925e1e 823 if (ld_so_conf == NULL)
b34976b6 824 return FALSE;
252b5132 825
e56f61be
L
826
827 needed.by = NULL;
828 needed.name = name;
829 return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
252b5132
RH
830}
831
04925e1e 832EOF
9c8ebd6a
DJ
833 # Linux
834 ;;
04925e1e
AM
835 esac
836fi
92b93329 837fragment <<EOF
04925e1e 838
252b5132
RH
839/* See if an input file matches a DT_NEEDED entry by name. */
840
841static void
0c7a8e5a 842gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
252b5132 843{
e13629bc
AM
844 const char *soname;
845
846 /* Stop looking if we've found a loaded lib. */
847 if (global_found != NULL
848 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
849 & DYN_AS_NEEDED) == 0)
252b5132
RH
850 return;
851
e13629bc
AM
852 if (s->filename == NULL || s->the_bfd == NULL)
853 return;
854
855 /* Don't look for a second non-loaded as-needed lib. */
856 if (global_found != NULL
857 && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
7cedef86
AM
858 return;
859
42627821 860 if (filename_cmp (s->filename, global_needed->name) == 0)
252b5132 861 {
e13629bc
AM
862 global_found = s;
863 return;
864 }
577a0623 865
66be1055 866 if (s->flags.search_dirs)
e13629bc
AM
867 {
868 const char *f = strrchr (s->filename, '/');
869 if (f != NULL
42627821 870 && filename_cmp (f + 1, global_needed->name) == 0)
577a0623 871 {
e13629bc 872 global_found = s;
577a0623
AM
873 return;
874 }
252b5132
RH
875 }
876
e13629bc
AM
877 soname = bfd_elf_get_dt_soname (s->the_bfd);
878 if (soname != NULL
42627821 879 && filename_cmp (soname, global_needed->name) == 0)
252b5132 880 {
e13629bc
AM
881 global_found = s;
882 return;
252b5132 883 }
252b5132
RH
884}
885
41392f03
AM
886EOF
887
888if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
92b93329 889fragment <<EOF
04925e1e 890
24382dca
RM
891static bfd_size_type
892gld${EMULATION_NAME}_id_note_section_size (bfd *abfd,
91d6fa6a 893 struct bfd_link_info *linfo)
24382dca 894{
91d6fa6a 895 const char *style = linfo->emit_note_gnu_build_id;
24382dca
RM
896 bfd_size_type size;
897
898 abfd = abfd;
899
900 size = offsetof (Elf_External_Note, name[sizeof "GNU"]);
901 size = (size + 3) & -(bfd_size_type) 4;
902
903 if (!strcmp (style, "md5") || !strcmp (style, "uuid"))
904 size += 128 / 8;
905 else if (!strcmp (style, "sha1"))
906 size += 160 / 8;
907 else if (!strncmp (style, "0x", 2))
908 {
909 /* ID is in string form (hex). Convert to bits. */
910 const char *id = style + 2;
911 do
912 {
913 if (ISXDIGIT (id[0]) && ISXDIGIT (id[1]))
914 {
915 ++size;
916 id += 2;
917 }
918 else if (*id == '-' || *id == ':')
919 ++id;
920 else
921 {
922 size = 0;
923 break;
924 }
925 } while (*id != '\0');
926 }
927 else
928 size = 0;
929
930 return size;
931}
932
933static unsigned char
934read_hex (const char xdigit)
935{
936 if (ISDIGIT (xdigit))
937 return xdigit - '0';
938 if (ISUPPER (xdigit))
939 return xdigit - 'A' + 0xa;
940 if (ISLOWER (xdigit))
941 return xdigit - 'a' + 0xa;
942 abort ();
943 return 0;
944}
945
946struct build_id_info
947{
948 const char *style;
949 asection *sec;
950};
951
952static bfd_boolean
953gld${EMULATION_NAME}_write_build_id_section (bfd *abfd)
954{
955 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1e9cc1c2 956 struct build_id_info *info = (struct build_id_info *)
24382dca
RM
957 elf_tdata (abfd)->after_write_object_contents_info;
958 asection *asec;
959 Elf_Internal_Shdr *i_shdr;
960 unsigned char *contents, *id_bits;
961 bfd_size_type size;
962 Elf_External_Note *e_note;
963
964 asec = info->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
993 if (!strcmp (info->style, "md5"))
994 {
995 struct md5_ctx ctx;
996 md5_init_ctx (&ctx);
997 if (bed->s->checksum_contents (abfd,
998 (void (*) (const void *, size_t, void *))
999 &md5_process_bytes,
1000 &ctx))
1001 md5_finish_ctx (&ctx, id_bits);
1002 else
1003 return FALSE;
1004 }
1005 else if (!strcmp (info->style, "sha1"))
1006 {
1007 struct sha1_ctx ctx;
1008 sha1_init_ctx (&ctx);
1009 if (bed->s->checksum_contents (abfd,
1010 (void (*) (const void *, size_t, void *))
1011 &sha1_process_bytes,
1012 &ctx))
1013 sha1_finish_ctx (&ctx, id_bits);
1014 else
1015 return FALSE;
1016 }
1017 else if (!strcmp (info->style, "uuid"))
1018 {
1019 int n;
1020 int fd = open ("/dev/urandom", O_RDONLY);
1021 if (fd < 0)
1022 return FALSE;
1023 n = read (fd, id_bits, size);
1024 close (fd);
1025 if (n < (int) size)
1026 return FALSE;
1027 }
1028 else if (!strncmp (info->style, "0x", 2))
1029 {
1030 /* ID is in string form (hex). Convert to bits. */
1031 const char *id = info->style + 2;
1032 size_t n = 0;
1033 do
1034 {
1035 if (ISXDIGIT (id[0]) && ISXDIGIT (id[1]))
1036 {
1037 id_bits[n] = read_hex (*id++) << 4;
1038 id_bits[n++] |= read_hex (*id++);
1039 }
1040 else if (*id == '-' || *id == ':')
1041 ++id;
1042 else
1043 abort (); /* Should have been validated earlier. */
1044 } while (*id != '\0');
1045 }
1046 else
1047 abort (); /* Should have been validated earlier. */
1048
b2ff8454
RM
1049 size = asec->size;
1050 return (bfd_seek (abfd,
1051 i_shdr->sh_offset + asec->output_offset, SEEK_SET) == 0
1052 && bfd_bwrite (contents, size, abfd) == size);
24382dca
RM
1053}
1054
1055
04925e1e 1056/* This is called after all the input files have been opened. */
252b5132
RH
1057
1058static void
0c7a8e5a 1059gld${EMULATION_NAME}_after_open (void)
252b5132 1060{
04925e1e 1061 struct bfd_link_needed_list *needed, *l;
d10e7fcc
AM
1062 struct elf_link_hash_table *htab;
1063
5c3049d2
AM
1064 after_open_default ();
1065
d10e7fcc
AM
1066 htab = elf_hash_table (&link_info);
1067 if (!is_elf_hash_table (htab))
1068 return;
252b5132 1069
c0065db7
RM
1070 if (link_info.emit_note_gnu_build_id)
1071 {
1072 bfd *abfd;
1073 asection *s;
1074 bfd_size_type size;
1075
a654efd6
L
1076 /* Find an ELF input. */
1077 for (abfd = link_info.input_bfds;
1078 abfd != (bfd *) NULL; abfd = abfd->link_next)
1079 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1080 break;
c0065db7 1081
e9e0a58e 1082 if (abfd == NULL)
c0065db7 1083 {
e9e0a58e
NC
1084 /* PR 10555: If there are no input files do not
1085 try to create a .note.gnu-build-id section. */
c0065db7
RM
1086 free (link_info.emit_note_gnu_build_id);
1087 link_info.emit_note_gnu_build_id = NULL;
1088 }
1089 else
1090 {
e9e0a58e
NC
1091 size = gld${EMULATION_NAME}_id_note_section_size (abfd, &link_info);
1092 if (size == 0)
c0065db7 1093 {
e9e0a58e
NC
1094 einfo ("%P: warning: unrecognized --build-id style ignored.\n");
1095 free (link_info.emit_note_gnu_build_id);
1096 link_info.emit_note_gnu_build_id = NULL;
c0065db7
RM
1097 }
1098 else
1099 {
e9e0a58e
NC
1100 s = bfd_make_section_with_flags (abfd, ".note.gnu.build-id",
1101 SEC_ALLOC | SEC_LOAD
1102 | SEC_IN_MEMORY | SEC_LINKER_CREATED
1103 | SEC_READONLY | SEC_DATA);
1104 if (s != NULL && bfd_set_section_alignment (abfd, s, 2))
1105 {
1106 struct elf_obj_tdata *t = elf_tdata (link_info.output_bfd);
1e9cc1c2 1107 struct build_id_info *b =
4724d37e 1108 (struct build_id_info *) xmalloc (sizeof *b);
e9e0a58e
NC
1109
1110 b->style = link_info.emit_note_gnu_build_id;
1111 b->sec = s;
1112 elf_section_type (s) = SHT_NOTE;
1113 s->size = size;
1114 t->after_write_object_contents
1115 = &gld${EMULATION_NAME}_write_build_id_section;
1116 t->after_write_object_contents_info = b;
1117 }
1118 else
1119 {
1120 einfo ("%P: warning: Cannot create .note.gnu.build-id section,"
1121 " --build-id ignored.\n");
1122 free (link_info.emit_note_gnu_build_id);
1123 link_info.emit_note_gnu_build_id = NULL;
1124 }
c0065db7
RM
1125 }
1126 }
1127 }
1128
d10e7fcc
AM
1129 if (link_info.relocatable)
1130 return;
1131
eb3d5f3b 1132 if (link_info.eh_frame_hdr
d10e7fcc 1133 && !link_info.traditional_format)
eb3d5f3b 1134 {
a654efd6
L
1135 bfd *abfd, *elfbfd = NULL;
1136 bfd_boolean warn_eh_frame = FALSE;
d10e7fcc 1137 asection *s;
eb3d5f3b 1138
d10e7fcc 1139 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)
eb3d5f3b 1140 {
a654efd6
L
1141 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1142 elfbfd = abfd;
4440bb77
L
1143 if (!warn_eh_frame)
1144 {
1145 s = bfd_get_section_by_name (abfd, ".eh_frame");
9cf8b46e
AM
1146 while (s != NULL
1147 && (s->size <= 8
1148 || bfd_is_abs_section (s->output_section)))
1149 s = bfd_get_next_section_by_name (s);
1150 warn_eh_frame = s != NULL;
4440bb77
L
1151 }
1152 if (elfbfd && warn_eh_frame)
1153 break;
d10e7fcc 1154 }
a654efd6 1155 if (elfbfd)
d10e7fcc
AM
1156 {
1157 const struct elf_backend_data *bed;
1158
a654efd6
L
1159 bed = get_elf_backend_data (elfbfd);
1160 s = bfd_make_section_with_flags (elfbfd, ".eh_frame_hdr",
1161 bed->dynamic_sec_flags
1162 | SEC_READONLY);
d10e7fcc 1163 if (s != NULL
a654efd6
L
1164 && bfd_set_section_alignment (elfbfd, s, 2))
1165 {
1166 htab->eh_info.hdr_sec = s;
1167 warn_eh_frame = FALSE;
1168 }
eb3d5f3b 1169 }
a654efd6
L
1170 if (warn_eh_frame)
1171 einfo ("%P: warning: Cannot create .eh_frame_hdr section,"
1172 " --eh-frame-hdr ignored.\n");
eb3d5f3b
JB
1173 }
1174
04925e1e
AM
1175 /* Get the list of files which appear in DT_NEEDED entries in
1176 dynamic objects included in the link (often there will be none).
1177 For each such file, we want to track down the corresponding
1178 library, and include the symbol table in the link. This is what
1179 the runtime dynamic linker will do. Tracking the files down here
1180 permits one dynamic object to include another without requiring
1181 special action by the person doing the link. Note that the
1182 needed list can actually grow while we are stepping through this
1183 loop. */
f13a99db 1184 needed = bfd_elf_get_needed_list (link_info.output_bfd, &link_info);
04925e1e 1185 for (l = needed; l != NULL; l = l->next)
252b5132 1186 {
04925e1e 1187 struct bfd_link_needed_list *ll;
e56f61be 1188 struct dt_needed n, nn;
04925e1e 1189 int force;
252b5132 1190
7e9f0867 1191 /* If the lib that needs this one was --as-needed and wasn't
8fbb09e8
L
1192 found to be needed, then this lib isn't needed either. Skip
1193 the lib when creating a shared object unless we are copying
1194 DT_NEEDED entres. */
7e9f0867 1195 if (l->by != NULL
8fbb09e8
L
1196 && ((bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0
1197 || (!link_info.executable
1198 && bfd_elf_get_dyn_lib_class (l->by) & DYN_NO_ADD_NEEDED) != 0))
7e9f0867
AM
1199 continue;
1200
04925e1e
AM
1201 /* If we've already seen this file, skip it. */
1202 for (ll = needed; ll != l; ll = ll->next)
7e9f0867
AM
1203 if ((ll->by == NULL
1204 || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
1205 && strcmp (ll->name, l->name) == 0)
04925e1e
AM
1206 break;
1207 if (ll != l)
1208 continue;
252b5132 1209
04925e1e
AM
1210 /* See if this file was included in the link explicitly. */
1211 global_needed = l;
e13629bc 1212 global_found = NULL;
04925e1e 1213 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
e13629bc
AM
1214 if (global_found != NULL
1215 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
1216 & DYN_AS_NEEDED) == 0)
04925e1e 1217 continue;
252b5132 1218
e56f61be
L
1219 n.by = l->by;
1220 n.name = l->name;
1221 nn.by = l->by;
cd6f1cf3 1222 if (verbose)
ec4eb78a
L
1223 info_msg (_("%s needed by %B\n"), l->name, l->by);
1224
e13629bc
AM
1225 /* As-needed libs specified on the command line (or linker script)
1226 take priority over libs found in search dirs. */
1227 if (global_found != NULL)
1228 {
1229 nn.name = global_found->filename;
1230 if (gld${EMULATION_NAME}_try_needed (&nn, TRUE))
1231 continue;
1232 }
1233
04925e1e
AM
1234 /* We need to find this file and include the symbol table. We
1235 want to search for the file in the same way that the dynamic
1236 linker will search. That means that we want to use
1237 rpath_link, rpath, then the environment variable
ec4eb78a
L
1238 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
1239 entries (native only), then the linker script LIB_SEARCH_DIRS.
1240 We do not search using the -L arguments.
252b5132 1241
04925e1e
AM
1242 We search twice. The first time, we skip objects which may
1243 introduce version mismatches. The second time, we force
1244 their use. See gld${EMULATION_NAME}_vercheck comment. */
1245 for (force = 0; force < 2; force++)
1246 {
04925e1e
AM
1247 size_t len;
1248 search_dirs_type *search;
6dd8c765 1249EOF
ff925e69 1250if [ "x${NATIVE}" = xyes ] ; then
92b93329 1251fragment <<EOF
dcb0bd0e 1252 const char *lib_path;
ff925e69
KK
1253EOF
1254fi
1255if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1256fragment <<EOF
6dd8c765
L
1257 struct bfd_link_needed_list *rp;
1258 int found;
1259EOF
6dd8c765 1260fi
92b93329 1261fragment <<EOF
252b5132 1262
04925e1e 1263 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
e56f61be 1264 &n, force))
04925e1e 1265 break;
dcb0bd0e 1266EOF
9c8ebd6a 1267if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1268fragment <<EOF
04925e1e 1269 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
e56f61be 1270 &n, force))
04925e1e 1271 break;
9c8ebd6a
DJ
1272EOF
1273fi
1274if [ "x${NATIVE}" = xyes ] ; then
92b93329 1275fragment <<EOF
04925e1e
AM
1276 if (command_line.rpath_link == NULL
1277 && command_line.rpath == NULL)
1278 {
1279 lib_path = (const char *) getenv ("LD_RUN_PATH");
e56f61be 1280 if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
04925e1e
AM
1281 force))
1282 break;
1283 }
04925e1e 1284 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
e56f61be 1285 if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force))
04925e1e 1286 break;
9c8ebd6a
DJ
1287EOF
1288fi
1289if [ "x${USE_LIBPATH}" = xyes ] ; then
92b93329 1290fragment <<EOF
ec4eb78a 1291 found = 0;
f13a99db 1292 rp = bfd_elf_get_runpath_list (link_info.output_bfd, &link_info);
6dd8c765 1293 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a 1294 {
9c8ebd6a 1295 char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name);
ec4eb78a 1296 found = (rp->by == l->by
9c8ebd6a 1297 && gld${EMULATION_NAME}_search_needed (tmpname,
e56f61be 1298 &n,
ec4eb78a 1299 force));
9c8ebd6a 1300 free (tmpname);
ec4eb78a
L
1301 }
1302 if (found)
1303 break;
1304
04925e1e 1305EOF
04925e1e 1306fi
c1446dba
L
1307if [ "x${USE_LIBPATH}" = xyes ] ; then
1308 case ${target} in
ebe1fac1 1309 *-*-freebsd* | *-*-dragonfly*)
92b93329 1310 fragment <<EOF
ebe1fac1
NC
1311 if (gld${EMULATION_NAME}_check_ld_elf_hints (l->name, force))
1312 break;
1313EOF
1314 # FreeBSD
1315 ;;
1316
a5244b7e 1317 *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
c1446dba 1318 # Linux
92b93329 1319 fragment <<EOF
c1446dba
L
1320 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
1321 break;
1322
1323EOF
1324 ;;
1325 esac
1326fi
92b93329 1327fragment <<EOF
04925e1e
AM
1328 len = strlen (l->name);
1329 for (search = search_head; search != NULL; search = search->next)
1330 {
1331 char *filename;
252b5132 1332
04925e1e
AM
1333 if (search->cmdline)
1334 continue;
1335 filename = (char *) xmalloc (strlen (search->name) + len + 2);
1336 sprintf (filename, "%s/%s", search->name, l->name);
e56f61be
L
1337 nn.name = filename;
1338 if (gld${EMULATION_NAME}_try_needed (&nn, force))
04925e1e
AM
1339 break;
1340 free (filename);
1341 }
1342 if (search != NULL)
1343 break;
1344EOF
92b93329 1345fragment <<EOF
04925e1e 1346 }
252b5132 1347
04925e1e
AM
1348 if (force < 2)
1349 continue;
252b5132 1350
e374f1d9 1351 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
04925e1e
AM
1352 l->name, l->by);
1353 }
1354}
252b5132 1355
41392f03
AM
1356EOF
1357fi
1358
92b93329 1359fragment <<EOF
252b5132 1360
04925e1e 1361/* Look through an expression for an assignment statement. */
252b5132 1362
04925e1e 1363static void
0c7a8e5a 1364gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
04925e1e 1365{
4ea42fb7 1366 bfd_boolean provide = FALSE;
04925e1e
AM
1367
1368 switch (exp->type.node_class)
252b5132 1369 {
04925e1e 1370 case etree_provide:
bded3693 1371 case etree_provided:
4ea42fb7
AM
1372 provide = TRUE;
1373 /* Fall thru */
1374 case etree_assign:
04925e1e
AM
1375 /* We call record_link_assignment even if the symbol is defined.
1376 This is because if it is defined by a dynamic object, we
1377 actually want to use the value defined by the linker script,
1378 not the value from the dynamic object (because we are setting
1379 symbols like etext). If the symbol is defined by a regular
1380 object, then, as it happens, calling record_link_assignment
1381 will do no harm. */
04925e1e 1382 if (strcmp (exp->assign.dst, ".") != 0)
252b5132 1383 {
f13a99db
AM
1384 if (!bfd_elf_record_link_assignment (link_info.output_bfd,
1385 &link_info,
fe21a8fc
L
1386 exp->assign.dst, provide,
1387 exp->assign.hidden))
04925e1e
AM
1388 einfo ("%P%F: failed to record assignment to %s: %E\n",
1389 exp->assign.dst);
252b5132 1390 }
04925e1e
AM
1391 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
1392 break;
252b5132 1393
04925e1e
AM
1394 case etree_binary:
1395 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
1396 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
1397 break;
252b5132 1398
04925e1e
AM
1399 case etree_trinary:
1400 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
1401 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
1402 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
1403 break;
252b5132 1404
04925e1e
AM
1405 case etree_unary:
1406 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1407 break;
252b5132 1408
04925e1e
AM
1409 default:
1410 break;
252b5132
RH
1411 }
1412}
1413
04925e1e
AM
1414
1415/* This is called by the before_allocation routine via
1416 lang_for_each_statement. It locates any assignment statements, and
1417 tells the ELF backend about them, in case they are assignments to
1418 symbols which are referred to by dynamic objects. */
1419
1420static void
0c7a8e5a 1421gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
04925e1e
AM
1422{
1423 if (s->header.type == lang_assignment_statement_enum)
1424 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1425}
1426
41392f03
AM
1427EOF
1428
1429if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
1430 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
1431 ELF_INTERPRETER_SET_DEFAULT="
1432 if (sinterp != NULL)
1433 {
5718918d
AM
1434 sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
1435 sinterp->size = strlen ((char *) sinterp->contents) + 1;
57e6abd2
AO
1436 }
1437
1438"
1439 else
1440 ELF_INTERPRETER_SET_DEFAULT=
1441 fi
92b93329 1442fragment <<EOF
04925e1e 1443
7ee314fa 1444/* used by before_allocation and handle_option. */
4724d37e 1445static void
91d6fa6a 1446gld${EMULATION_NAME}_append_to_separated_string (char **to, char *op_arg)
7ee314fa
AM
1447{
1448 if (*to == NULL)
91d6fa6a 1449 *to = xstrdup (op_arg);
7ee314fa
AM
1450 else
1451 {
1452 size_t to_len = strlen (*to);
91d6fa6a 1453 size_t op_arg_len = strlen (op_arg);
7ee314fa
AM
1454 char *buf;
1455 char *cp = *to;
1456
1457 /* First see whether OPTARG is already in the path. */
1458 do
1459 {
91d6fa6a
NC
1460 if (strncmp (op_arg, cp, op_arg_len) == 0
1461 && (cp[op_arg_len] == 0
1462 || cp[op_arg_len] == config.rpath_separator))
7ee314fa
AM
1463 /* We found it. */
1464 break;
1465
1466 /* Not yet found. */
1467 cp = strchr (cp, config.rpath_separator);
1468 if (cp != NULL)
1469 ++cp;
1470 }
1471 while (cp != NULL);
1472
1473 if (cp == NULL)
1474 {
91d6fa6a 1475 buf = xmalloc (to_len + op_arg_len + 2);
7ee314fa 1476 sprintf (buf, "%s%c%s", *to,
91d6fa6a 1477 config.rpath_separator, op_arg);
7ee314fa
AM
1478 free (*to);
1479 *to = buf;
1480 }
1481 }
1482}
1483
252b5132
RH
1484/* This is called after the sections have been attached to output
1485 sections, but before any sizes or addresses have been set. */
1486
1487static void
0c7a8e5a 1488gld${EMULATION_NAME}_before_allocation (void)
252b5132
RH
1489{
1490 const char *rpath;
1491 asection *sinterp;
7ee314fa 1492 bfd *abfd;
252b5132 1493
fd574c46 1494 if (link_info.hash->type == bfd_link_elf_hash_table)
f13a99db 1495 _bfd_elf_tls_setup (link_info.output_bfd, &link_info);
e1918d23 1496
252b5132
RH
1497 /* If we are going to make any variable assignments, we need to let
1498 the ELF backend know about them in case the variables are
1499 referred to by dynamic objects. */
1500 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
1501
1502 /* Let the ELF backend work out the sizes of any sections required
1503 by dynamic linking. */
1504 rpath = command_line.rpath;
1505 if (rpath == NULL)
1506 rpath = (const char *) getenv ("LD_RUN_PATH");
7ee314fa
AM
1507
1508 for (abfd = link_info.input_bfds; abfd; abfd = abfd->link_next)
8dd881b6
L
1509 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
1510 {
1511 const char *audit_libs = elf_dt_audit (abfd);
7ee314fa 1512
4724d37e 1513 /* If the input bfd contains an audit entry, we need to add it as
8dd881b6
L
1514 a dep audit entry. */
1515 if (audit_libs && *audit_libs != '\0')
1516 {
1517 char *cp = xstrdup (audit_libs);
1518 do
1519 {
1520 int more = 0;
1521 char *cp2 = strchr (cp, config.rpath_separator);
7ee314fa 1522
8dd881b6
L
1523 if (cp2)
1524 {
1525 *cp2 = '\0';
1526 more = 1;
1527 }
7ee314fa 1528
8dd881b6
L
1529 if (cp != NULL && *cp != '\0')
1530 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, cp);
1531
1532 cp = more ? ++cp2 : NULL;
1533 }
1534 while (cp != NULL);
1535 }
1536 }
7ee314fa 1537
5a580b3a 1538 if (! (bfd_elf_size_dynamic_sections
f13a99db 1539 (link_info.output_bfd, command_line.soname, rpath,
7ee314fa 1540 command_line.filter_shlib, audit, depaudit,
252b5132 1541 (const char * const *) command_line.auxiliary_filters,
fd91d419 1542 &link_info, &sinterp)))
252b5132 1543 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
8423293d 1544
57e6abd2 1545${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
1546 /* Let the user override the dynamic linker we are using. */
1547 if (command_line.interpreter != NULL
1548 && sinterp != NULL)
1549 {
1550 sinterp->contents = (bfd_byte *) command_line.interpreter;
eea6121a 1551 sinterp->size = strlen (command_line.interpreter) + 1;
252b5132
RH
1552 }
1553
1554 /* Look for any sections named .gnu.warning. As a GNU extensions,
1555 we treat such sections as containing warning messages. We print
1556 out the warning message, and then zero out the section size so
1557 that it does not get copied into the output file. */
1558
1559 {
1560 LANG_FOR_EACH_INPUT_STATEMENT (is)
1561 {
1562 asection *s;
1563 bfd_size_type sz;
1564 char *msg;
b34976b6 1565 bfd_boolean ret;
252b5132 1566
66be1055 1567 if (is->flags.just_syms)
252b5132
RH
1568 continue;
1569
1570 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
1571 if (s == NULL)
1572 continue;
1573
eea6121a 1574 sz = s->size;
1e9cc1c2 1575 msg = (char *) xmalloc ((size_t) (sz + 1));
bc251d50 1576 if (! bfd_get_section_contents (is->the_bfd, s, msg,
8c675694 1577 (file_ptr) 0, sz))
252b5132
RH
1578 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
1579 is->the_bfd);
bc251d50 1580 msg[sz] = '\0';
252b5132
RH
1581 ret = link_info.callbacks->warning (&link_info, msg,
1582 (const char *) NULL,
1583 is->the_bfd, (asection *) NULL,
1584 (bfd_vma) 0);
1585 ASSERT (ret);
1586 free (msg);
1587
9e3be61d
AM
1588 /* Clobber the section size, so that we don't waste space
1589 copying the warning into the output file. If we've already
1590 sized the output section, adjust its size. The adjustment
1591 is on rawsize because targets that size sections early will
1592 have called lang_reset_memory_regions after sizing. */
1593 if (s->output_section != NULL
1594 && s->output_section->rawsize >= s->size)
1595 s->output_section->rawsize -= s->size;
1596
eea6121a 1597 s->size = 0;
11d2f718 1598
9e3be61d
AM
1599 /* Also set SEC_EXCLUDE, so that local symbols defined in the
1600 warning section don't get copied to the output. */
a14a5de3 1601 s->flags |= SEC_EXCLUDE | SEC_KEEP;
252b5132
RH
1602 }
1603 }
8423293d 1604
1e035701 1605 before_allocation_default ();
8423293d 1606
f13a99db 1607 if (!bfd_elf_size_dynsym_hash_dynstr (link_info.output_bfd, &link_info))
8423293d 1608 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
252b5132
RH
1609}
1610
41392f03
AM
1611EOF
1612fi
1613
1614if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
92b93329 1615fragment <<EOF
252b5132 1616
04925e1e
AM
1617/* Try to open a dynamic archive. This is where we know that ELF
1618 dynamic libraries have an extension of .so (or .sl on oddball systems
1619 like hpux). */
1620
b34976b6 1621static bfd_boolean
0c7a8e5a
AM
1622gld${EMULATION_NAME}_open_dynamic_archive
1623 (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
252b5132 1624{
04925e1e
AM
1625 const char *filename;
1626 char *string;
252b5132 1627
66be1055 1628 if (! entry->flags.maybe_archive)
b34976b6 1629 return FALSE;
252b5132 1630
04925e1e 1631 filename = entry->filename;
252b5132 1632
04925e1e
AM
1633 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
1634 is defined, but it does not seem worth the headache to optimize
1635 away those two bytes of space. */
1636 string = (char *) xmalloc (strlen (search->name)
1637 + strlen (filename)
1638 + strlen (arch)
1639#ifdef EXTRA_SHLIB_EXTENSION
1640 + strlen (EXTRA_SHLIB_EXTENSION)
1641#endif
1642 + sizeof "/lib.so");
1643
1644 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
1645
1646#ifdef EXTRA_SHLIB_EXTENSION
1647 /* Try the .so extension first. If that fails build a new filename
1648 using EXTRA_SHLIB_EXTENSION. */
1649 if (! ldfile_try_open_bfd (string, entry))
a26cc967
AM
1650 {
1651 sprintf (string, "%s/lib%s%s%s", search->name,
1652 filename, arch, EXTRA_SHLIB_EXTENSION);
04925e1e
AM
1653#endif
1654
1655 if (! ldfile_try_open_bfd (string, entry))
252b5132 1656 {
04925e1e 1657 free (string);
b34976b6 1658 return FALSE;
04925e1e 1659 }
a26cc967
AM
1660#ifdef EXTRA_SHLIB_EXTENSION
1661 }
1662#endif
252b5132 1663
04925e1e 1664 entry->filename = string;
252b5132 1665
04925e1e
AM
1666 /* We have found a dynamic object to include in the link. The ELF
1667 backend linker will create a DT_NEEDED entry in the .dynamic
1668 section naming this file. If this file includes a DT_SONAME
1669 entry, it will be used. Otherwise, the ELF linker will just use
1670 the name of the file. For an archive found by searching, like
1671 this one, the DT_NEEDED entry should consist of just the name of
1672 the file, without the path information used to find it. Note
1673 that we only need to do this if we have a dynamic object; an
1674 archive will never be referenced by a DT_NEEDED entry.
252b5132 1675
04925e1e
AM
1676 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
1677 very pretty. I haven't been able to think of anything that is
1678 pretty, though. */
1679 if (bfd_check_format (entry->the_bfd, bfd_object)
1680 && (entry->the_bfd->flags & DYNAMIC) != 0)
1681 {
66be1055 1682 ASSERT (entry->flags.maybe_archive && entry->flags.search_dirs);
252b5132 1683
04925e1e 1684 /* Rather than duplicating the logic above. Just use the
1c9acd94 1685 filename we recorded earlier. */
04925e1e 1686
fed2999d 1687 filename = lbasename (entry->filename);
1c9acd94 1688 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
1689 }
1690
b34976b6 1691 return TRUE;
04925e1e
AM
1692}
1693
41392f03
AM
1694EOF
1695fi
cde43e70
AM
1696
1697if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
92b93329 1698fragment <<EOF
41392f03 1699
afd7a018 1700/* A variant of lang_output_section_find used by place_orphan. */
04925e1e 1701
04925e1e 1702static lang_output_section_statement_type *
2a36a117 1703output_rel_find (asection *sec, int isdyn)
04925e1e 1704{
04925e1e 1705 lang_output_section_statement_type *lookup;
ba493122 1706 lang_output_section_statement_type *last = NULL;
2a36a117 1707 lang_output_section_statement_type *last_alloc = NULL;
48f2ff54 1708 lang_output_section_statement_type *last_ro_alloc = NULL;
ba493122
AM
1709 lang_output_section_statement_type *last_rel = NULL;
1710 lang_output_section_statement_type *last_rel_alloc = NULL;
24cdb50a 1711 int rela = sec->name[4] == 'a';
04925e1e 1712
afd7a018
AM
1713 for (lookup = &lang_output_section_statement.head->output_section_statement;
1714 lookup != NULL;
1715 lookup = lookup->next)
04925e1e 1716 {
66c103b7 1717 if (lookup->constraint >= 0
0112cd26 1718 && CONST_STRNEQ (lookup->name, ".rel"))
04925e1e 1719 {
24cdb50a 1720 int lookrela = lookup->name[4] == 'a';
ba493122 1721
2a36a117
AM
1722 /* .rel.dyn must come before all other reloc sections, to suit
1723 GNU ld.so. */
1724 if (isdyn)
1725 break;
1726
1727 /* Don't place after .rel.plt as doing so results in wrong
1728 dynamic tags. */
1729 if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
ba493122 1730 break;
2a36a117
AM
1731
1732 if (rela == lookrela || last_rel == NULL)
24cdb50a 1733 last_rel = lookup;
2a36a117
AM
1734 if ((rela == lookrela || last_rel_alloc == NULL)
1735 && lookup->bfd_section != NULL
ba493122
AM
1736 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1737 last_rel_alloc = lookup;
04925e1e 1738 }
2a36a117
AM
1739
1740 last = lookup;
1741 if (lookup->bfd_section != NULL
1742 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
48f2ff54
AM
1743 {
1744 last_alloc = lookup;
1745 if ((lookup->bfd_section->flags & SEC_READONLY) != 0)
1746 last_ro_alloc = lookup;
1747 }
252b5132 1748 }
ba493122
AM
1749
1750 if (last_rel_alloc)
1751 return last_rel_alloc;
1752
1753 if (last_rel)
1754 return last_rel;
1755
48f2ff54
AM
1756 if (last_ro_alloc)
1757 return last_ro_alloc;
1758
2a36a117
AM
1759 if (last_alloc)
1760 return last_alloc;
1761
ba493122 1762 return last;
252b5132
RH
1763}
1764
1765/* Place an orphan section. We use this to put random SHF_ALLOC
1766 sections in the right segment. */
1767
c2edb4b8 1768static lang_output_section_statement_type *
8a99a385
AM
1769gld${EMULATION_NAME}_place_orphan (asection *s,
1770 const char *secname,
1771 int constraint)
252b5132 1772{
afd7a018
AM
1773 static struct orphan_save hold[] =
1774 {
1775 { ".text",
1776 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1777 0, 0, 0, 0 },
1778 { ".rodata",
1779 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1780 0, 0, 0, 0 },
1781 { ".data",
1782 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1783 0, 0, 0, 0 },
1784 { ".bss",
1785 SEC_ALLOC,
1786 0, 0, 0, 0 },
1787 { 0,
1788 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1789 0, 0, 0, 0 },
1790 { ".interp",
1791 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1792 0, 0, 0, 0 },
1793 { ".sdata",
1794 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
07890c07 1795 0, 0, 0, 0 },
175b7cd4 1796 { ".comment",
07890c07
AM
1797 SEC_HAS_CONTENTS,
1798 0, 0, 0, 0 },
afd7a018
AM
1799 };
1800 enum orphan_save_index
1801 {
1802 orphan_text = 0,
1803 orphan_rodata,
1804 orphan_data,
1805 orphan_bss,
1806 orphan_rel,
1807 orphan_interp,
07890c07
AM
1808 orphan_sdata,
1809 orphan_nonalloc
afd7a018
AM
1810 };
1811 static int orphan_init_done = 0;
6a345e87 1812 struct orphan_save *place;
afd7a018 1813 lang_output_section_statement_type *after;
252b5132 1814 lang_output_section_statement_type *os;
b5f14a6d 1815 lang_output_section_statement_type *match_by_name = NULL;
24cdb50a 1816 int isdyn = 0;
ecca9871
L
1817 int iself = s->owner->xvec->flavour == bfd_target_elf_flavour;
1818 unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL;
252b5132 1819
1049f94e 1820 if (! link_info.relocatable
24cdb50a 1821 && link_info.combreloc
ecca9871 1822 && (s->flags & SEC_ALLOC))
24cdb50a 1823 {
ecca9871
L
1824 if (iself)
1825 switch (sh_type)
1826 {
1827 case SHT_RELA:
1828 secname = ".rela.dyn";
1829 isdyn = 1;
1830 break;
1831 case SHT_REL:
1832 secname = ".rel.dyn";
1833 isdyn = 1;
1834 break;
1835 default:
1836 break;
1837 }
0112cd26 1838 else if (CONST_STRNEQ (secname, ".rel"))
ecca9871
L
1839 {
1840 secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn";
1841 isdyn = 1;
1842 }
24cdb50a 1843 }
aea4bd9d 1844
bcacc0f5 1845 /* Look through the script to see where to place this section. */
d127ecce
AM
1846 if (constraint == 0)
1847 for (os = lang_output_section_find (secname);
1848 os != NULL;
1849 os = next_matching_output_section_statement (os, 0))
1850 {
1851 /* If we don't match an existing output section, tell
1852 lang_insert_orphan to create a new output section. */
1853 constraint = SPECIAL;
1854
1855 if (os->bfd_section != NULL
1856 && (os->bfd_section->flags == 0
1857 || (_bfd_elf_match_sections_by_type (link_info.output_bfd,
1858 os->bfd_section,
1859 s->owner, s)
1860 && ((s->flags ^ os->bfd_section->flags)
1861 & (SEC_LOAD | SEC_ALLOC)) == 0)))
1862 {
1863 /* We already have an output section statement with this
1864 name, and its bfd section has compatible flags.
1865 If the section already exists but does not have any flags
1866 set, then it has been created by the linker, probably as a
1867 result of a --section-start command line switch. */
b9c361e0 1868 lang_add_section (&os->children, s, NULL, os);
d127ecce
AM
1869 return os;
1870 }
b5f14a6d
DD
1871
1872 /* Save unused output sections in case we can match them
1873 against orphans later. */
1874 if (os->bfd_section == NULL)
1875 match_by_name = os;
d127ecce 1876 }
252b5132 1877
b5f14a6d
DD
1878 /* If we didn't match an active output section, see if we matched an
1879 unused one and use that. */
1880 if (match_by_name)
1881 {
b9c361e0 1882 lang_add_section (&match_by_name->children, s, NULL, match_by_name);
b5f14a6d
DD
1883 return match_by_name;
1884 }
1885
afd7a018
AM
1886 if (!orphan_init_done)
1887 {
1888 struct orphan_save *ho;
07890c07 1889
afd7a018
AM
1890 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1891 if (ho->name != NULL)
1892 {
1893 ho->os = lang_output_section_find (ho->name);
1894 if (ho->os != NULL && ho->os->flags == 0)
1895 ho->os->flags = ho->flags;
1896 }
1897 orphan_init_done = 1;
1898 }
252b5132
RH
1899
1900 /* If this is a final link, then always put .gnu.warning.SYMBOL
1901 sections into the .text section to get them out of the way. */
36af4a4e 1902 if (link_info.executable
1049f94e 1903 && ! link_info.relocatable
bcacc0f5 1904 && CONST_STRNEQ (s->name, ".gnu.warning.")
afd7a018 1905 && hold[orphan_text].os != NULL)
252b5132 1906 {
c2edb4b8 1907 os = hold[orphan_text].os;
b9c361e0 1908 lang_add_section (&os->children, s, NULL, os);
c2edb4b8 1909 return os;
252b5132
RH
1910 }
1911
1912 /* Decide which segment the section should go in based on the
1913 section name and section flags. We put loadable .note sections
1914 right after the .interp section, so that the PT_NOTE segment is
1915 stored right after the program headers where the OS can read it
1916 in the first page. */
aea4bd9d 1917
71bfc0ae 1918 place = NULL;
07890c07
AM
1919 if ((s->flags & (SEC_ALLOC | SEC_DEBUGGING)) == 0)
1920 place = &hold[orphan_nonalloc];
1921 else if ((s->flags & SEC_ALLOC) == 0)
71bfc0ae 1922 ;
252b5132 1923 else if ((s->flags & SEC_LOAD) != 0
ecca9871 1924 && ((iself && sh_type == SHT_NOTE)
0112cd26 1925 || (!iself && CONST_STRNEQ (secname, ".note"))))
afd7a018 1926 place = &hold[orphan_interp];
04c932a2 1927 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS | SEC_THREAD_LOCAL)) == 0)
afd7a018
AM
1928 place = &hold[orphan_bss];
1929 else if ((s->flags & SEC_SMALL_DATA) != 0)
1930 place = &hold[orphan_sdata];
1931 else if ((s->flags & SEC_READONLY) == 0)
1932 place = &hold[orphan_data];
ecca9871 1933 else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL))
0112cd26 1934 || (!iself && CONST_STRNEQ (secname, ".rel")))
afd7a018
AM
1935 && (s->flags & SEC_LOAD) != 0)
1936 place = &hold[orphan_rel];
1937 else if ((s->flags & SEC_CODE) == 0)
1938 place = &hold[orphan_rodata];
1939 else
1940 place = &hold[orphan_text];
71bfc0ae 1941
afd7a018 1942 after = NULL;
5ba47421 1943 if (place != NULL)
252b5132 1944 {
afd7a018 1945 if (place->os == NULL)
5ba47421 1946 {
afd7a018
AM
1947 if (place->name != NULL)
1948 place->os = lang_output_section_find (place->name);
1949 else
1950 place->os = output_rel_find (s, isdyn);
5ba47421 1951 }
afd7a018
AM
1952 after = place->os;
1953 if (after == NULL)
390fbbf1
AM
1954 after = lang_output_section_find_by_flags
1955 (s, &place->os, _bfd_elf_match_sections_by_type);
afd7a018
AM
1956 if (after == NULL)
1957 /* *ABS* is always the first output section statement. */
1958 after = &lang_output_section_statement.head->output_section_statement;
252b5132
RH
1959 }
1960
c2edb4b8 1961 return lang_insert_orphan (s, secname, constraint, after, place, NULL, NULL);
252b5132 1962}
c56feb2b
AM
1963EOF
1964fi
1965
eaeb0a9d 1966if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then
92b93329 1967fragment <<EOF
252b5132 1968
deb04cdb 1969static void
eaeb0a9d 1970gld${EMULATION_NAME}_after_allocation (void)
deb04cdb 1971{
f13a99db
AM
1972 bfd_boolean need_layout = bfd_elf_discard_info (link_info.output_bfd,
1973 &link_info);
8ded5a0f 1974 gld${EMULATION_NAME}_map_segments (need_layout);
73d074b4 1975}
41392f03
AM
1976EOF
1977fi
1978
1979if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
92b93329 1980fragment <<EOF
252b5132
RH
1981
1982static char *
0c7a8e5a 1983gld${EMULATION_NAME}_get_script (int *isfile)
252b5132
RH
1984EOF
1985
1986if test -n "$COMPILE_IN"
1987then
1988# Scripts compiled in.
1989
1990# sed commands to quote an ld script as a C string.
597e2591 1991sc="-f stringify.sed"
252b5132 1992
92b93329 1993fragment <<EOF
60bcf0fa 1994{
252b5132
RH
1995 *isfile = 0;
1996
1049f94e 1997 if (link_info.relocatable && config.build_constructors)
597e2591 1998 return
252b5132 1999EOF
afd7a018
AM
2000sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
2001echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
2002sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
2003echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
2004sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
61585df2 2005if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
afd7a018
AM
2006echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
2007sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 2008fi
36af4a4e
JJ
2009if test -n "$GENERATE_PIE_SCRIPT" ; then
2010if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
8c37241b
JJ
2011echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c
2012echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2013echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2014sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
36af4a4e 2015echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2016sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
36af4a4e 2017fi
afd7a018
AM
2018echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c
2019sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
36af4a4e 2020fi
252b5132 2021if test -n "$GENERATE_SHLIB_SCRIPT" ; then
82434356 2022if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
8c37241b
JJ
2023echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c
2024echo ' && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2025echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018 2026sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
db6751f2 2027echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
afd7a018 2028sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
82434356 2029fi
afd7a018
AM
2030echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
2031sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 2032fi
82434356 2033if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
8c37241b 2034echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c
fbfca19e 2035echo ' && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
afd7a018
AM
2036sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
2037echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
2038sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
82434356 2039fi
afd7a018
AM
2040echo ' ; else return' >> e${EMULATION_NAME}.c
2041sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
2042echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
2043
2044else
2045# Scripts read from the filesystem.
2046
92b93329 2047fragment <<EOF
60bcf0fa 2048{
252b5132
RH
2049 *isfile = 1;
2050
1049f94e 2051 if (link_info.relocatable && config.build_constructors)
252b5132 2052 return "ldscripts/${EMULATION_NAME}.xu";
1049f94e 2053 else if (link_info.relocatable)
252b5132
RH
2054 return "ldscripts/${EMULATION_NAME}.xr";
2055 else if (!config.text_read_only)
2056 return "ldscripts/${EMULATION_NAME}.xbn";
a060b769
AM
2057EOF
2058if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
2059else
92b93329 2060fragment <<EOF
252b5132
RH
2061 else if (!config.magic_demand_paged)
2062 return "ldscripts/${EMULATION_NAME}.xn";
a060b769
AM
2063EOF
2064fi
36af4a4e
JJ
2065if test -n "$GENERATE_PIE_SCRIPT" ; then
2066if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2067fragment <<EOF
8c37241b 2068 else if (link_info.pie && link_info.combreloc
fbfca19e 2069 && link_info.relro && (link_info.flags & DF_BIND_NOW))
8c37241b 2070 return "ldscripts/${EMULATION_NAME}.xdw";
36af4a4e
JJ
2071 else if (link_info.pie && link_info.combreloc)
2072 return "ldscripts/${EMULATION_NAME}.xdc";
2073EOF
2074fi
92b93329 2075fragment <<EOF
36af4a4e
JJ
2076 else if (link_info.pie)
2077 return "ldscripts/${EMULATION_NAME}.xd";
2078EOF
2079fi
a060b769
AM
2080if test -n "$GENERATE_SHLIB_SCRIPT" ; then
2081if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2082fragment <<EOF
8c37241b 2083 else if (link_info.shared && link_info.combreloc
fbfca19e 2084 && link_info.relro && (link_info.flags & DF_BIND_NOW))
8c37241b 2085 return "ldscripts/${EMULATION_NAME}.xsw";
a060b769
AM
2086 else if (link_info.shared && link_info.combreloc)
2087 return "ldscripts/${EMULATION_NAME}.xsc";
2088EOF
2089fi
92b93329 2090fragment <<EOF
252b5132
RH
2091 else if (link_info.shared)
2092 return "ldscripts/${EMULATION_NAME}.xs";
a060b769
AM
2093EOF
2094fi
2095if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
92b93329 2096fragment <<EOF
8c37241b 2097 else if (link_info.combreloc && link_info.relro
fbfca19e 2098 && (link_info.flags & DF_BIND_NOW))
8c37241b 2099 return "ldscripts/${EMULATION_NAME}.xw";
a060b769
AM
2100 else if (link_info.combreloc)
2101 return "ldscripts/${EMULATION_NAME}.xc";
2102EOF
2103fi
92b93329 2104fragment <<EOF
252b5132
RH
2105 else
2106 return "ldscripts/${EMULATION_NAME}.x";
2107}
252b5132 2108
3b108066 2109EOF
41392f03
AM
2110fi
2111fi
3b108066 2112
e0ee487b 2113if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
92b93329 2114fragment <<EOF
e0ee487b
L
2115 $PARSE_AND_LIST_PROLOGUE
2116EOF
2117fi
2118
92b93329 2119fragment <<EOF
e0ee487b 2120
6c1439be
L
2121#define OPTION_DISABLE_NEW_DTAGS (400)
2122#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
a1ab1d2a 2123#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
65765700 2124#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
b58f81ae 2125#define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
fdc90cb4 2126#define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1)
c0065db7 2127#define OPTION_BUILD_ID (OPTION_HASH_STYLE + 1)
7ee314fa 2128#define OPTION_AUDIT (OPTION_BUILD_ID + 1)
e13629bc 2129
3bcf5557 2130static void
0c7a8e5a
AM
2131gld${EMULATION_NAME}_add_options
2132 (int ns, char **shortopts, int nl, struct option **longopts,
2133 int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
e0ee487b 2134{
fb42df5e
AM
2135EOF
2136if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2137fragment <<EOF
7ee314fa 2138 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:";
fb42df5e
AM
2139EOF
2140else
2141fragment <<EOF
2142 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
2143EOF
2144fi
2145fragment <<EOF
3bcf5557 2146 static const struct option xtra_long[] = {
fb42df5e
AM
2147EOF
2148if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2149fragment <<EOF
7ee314fa 2150 {"audit", required_argument, NULL, OPTION_AUDIT},
fb42df5e
AM
2151 {"Bgroup", no_argument, NULL, OPTION_GROUP},
2152EOF
2153fi
2154fragment <<EOF
2155 {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
e0ee487b 2156EOF
e0ee487b 2157if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2158fragment <<EOF
fb42df5e 2159 {"depaudit", required_argument, NULL, 'P'},
3bcf5557
AM
2160 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
2161 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
2162 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
b58f81ae 2163 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
fdc90cb4 2164 {"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
e0ee487b
L
2165EOF
2166fi
e0ee487b 2167if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
92b93329 2168fragment <<EOF
3bcf5557 2169 $PARSE_AND_LIST_LONGOPTS
e0ee487b
L
2170EOF
2171fi
92b93329 2172fragment <<EOF
3bcf5557
AM
2173 {NULL, no_argument, NULL, 0}
2174 };
2175
2176 *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
2177 memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
2178 *longopts = (struct option *)
2179 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
2180 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
2181}
04925e1e 2182
24382dca 2183#define DEFAULT_BUILD_ID_STYLE "sha1"
c0065db7 2184
3bcf5557 2185static bfd_boolean
0c7a8e5a 2186gld${EMULATION_NAME}_handle_option (int optc)
e0ee487b 2187{
e0ee487b
L
2188 switch (optc)
2189 {
2190 default:
3bcf5557 2191 return FALSE;
6c1439be 2192
c0065db7
RM
2193 case OPTION_BUILD_ID:
2194 if (link_info.emit_note_gnu_build_id != NULL)
2195 {
2196 free (link_info.emit_note_gnu_build_id);
2197 link_info.emit_note_gnu_build_id = NULL;
2198 }
2199 if (optarg == NULL)
2200 optarg = DEFAULT_BUILD_ID_STYLE;
2201 if (strcmp (optarg, "none"))
2202 link_info.emit_note_gnu_build_id = xstrdup (optarg);
2203 break;
fb42df5e
AM
2204
2205EOF
2206
2207if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2208fragment <<EOF
7ee314fa 2209 case OPTION_AUDIT:
4724d37e 2210 gld${EMULATION_NAME}_append_to_separated_string (&audit, optarg);
7ee314fa 2211 break;
fb42df5e 2212
7ee314fa
AM
2213 case 'P':
2214 gld${EMULATION_NAME}_append_to_separated_string (&depaudit, optarg);
2215 break;
c0065db7 2216
6c1439be 2217 case OPTION_DISABLE_NEW_DTAGS:
b34976b6 2218 link_info.new_dtags = FALSE;
6c1439be
L
2219 break;
2220
2221 case OPTION_ENABLE_NEW_DTAGS:
b34976b6 2222 link_info.new_dtags = TRUE;
6c1439be
L
2223 break;
2224
65765700 2225 case OPTION_EH_FRAME_HDR:
b34976b6 2226 link_info.eh_frame_hdr = TRUE;
65765700
JJ
2227 break;
2228
a1ab1d2a
UD
2229 case OPTION_GROUP:
2230 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
2231 /* Groups must be self-contained. */
560e09e9
NC
2232 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2233 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
a1ab1d2a
UD
2234 break;
2235
b58f81ae
DJ
2236 case OPTION_EXCLUDE_LIBS:
2237 add_excluded_libs (optarg);
2238 break;
2239
fdc90cb4
JJ
2240 case OPTION_HASH_STYLE:
2241 link_info.emit_hash = FALSE;
2242 link_info.emit_gnu_hash = FALSE;
2243 if (strcmp (optarg, "sysv") == 0)
2244 link_info.emit_hash = TRUE;
2245 else if (strcmp (optarg, "gnu") == 0)
2246 link_info.emit_gnu_hash = TRUE;
2247 else if (strcmp (optarg, "both") == 0)
2248 {
2249 link_info.emit_hash = TRUE;
2250 link_info.emit_gnu_hash = TRUE;
2251 }
2252 else
2253 einfo (_("%P%F: invalid hash style \`%s'\n"), optarg);
2254 break;
2255
fb42df5e
AM
2256EOF
2257fi
2258fragment <<EOF
e0ee487b 2259 case 'z':
fb42df5e
AM
2260 if (strcmp (optarg, "defs") == 0)
2261 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
2262 else if (strcmp (optarg, "muldefs") == 0)
2263 link_info.allow_multiple_definition = TRUE;
2264 else if (CONST_STRNEQ (optarg, "max-page-size="))
2265 {
2266 char *end;
2267
2268 config.maxpagesize = strtoul (optarg + 14, &end, 0);
2269 if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0)
2270 einfo (_("%P%F: invalid maxium page size \`%s'\n"),
2271 optarg + 14);
2272 }
2273 else if (CONST_STRNEQ (optarg, "common-page-size="))
2274 {
2275 char *end;
2276 config.commonpagesize = strtoul (optarg + 17, &end, 0);
2277 if (*end
2278 || (config.commonpagesize & (config.commonpagesize - 1)) != 0)
2279 einfo (_("%P%F: invalid common page size \`%s'\n"),
2280 optarg + 17);
2281 }
04c3a755
NS
2282 else if (CONST_STRNEQ (optarg, "stack-size="))
2283 {
2284 char *end;
2285 link_info.stacksize = strtoul (optarg + 11, &end, 0);
2286 if (*end || link_info.stacksize < 0)
2287 einfo (_("%P%F: invalid stack size \`%s'\n"), optarg + 11);
2288 if (!link_info.stacksize)
2289 /* Use -1 for explicit no-stack, because zero means
2290 'default'. */
2291 link_info.stacksize = -1;
2292 }
fb42df5e
AM
2293 else if (strcmp (optarg, "execstack") == 0)
2294 {
2295 link_info.execstack = TRUE;
2296 link_info.noexecstack = FALSE;
2297 }
2298 else if (strcmp (optarg, "noexecstack") == 0)
2299 {
2300 link_info.noexecstack = TRUE;
2301 link_info.execstack = FALSE;
2302 }
2303EOF
2304if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2305fragment <<EOF
b039ef04
L
2306 else if (strcmp (optarg, "global") == 0)
2307 link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL;
fb42df5e 2308 else if (strcmp (optarg, "initfirst") == 0)
e0ee487b
L
2309 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
2310 else if (strcmp (optarg, "interpose") == 0)
2311 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
2312 else if (strcmp (optarg, "loadfltr") == 0)
2313 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
2314 else if (strcmp (optarg, "nodefaultlib") == 0)
2315 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
2316 else if (strcmp (optarg, "nodelete") == 0)
2317 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
2318 else if (strcmp (optarg, "nodlopen") == 0)
2319 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
2320 else if (strcmp (optarg, "nodump") == 0)
2321 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
2322 else if (strcmp (optarg, "now") == 0)
2323 {
2324 link_info.flags |= (bfd_vma) DF_BIND_NOW;
2325 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
2326 }
5fa222e4
AM
2327 else if (strcmp (optarg, "lazy") == 0)
2328 {
2329 link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
2330 link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
2331 }
e0ee487b
L
2332 else if (strcmp (optarg, "origin") == 0)
2333 {
2334 link_info.flags |= (bfd_vma) DF_ORIGIN;
2335 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
2336 }
db6751f2 2337 else if (strcmp (optarg, "combreloc") == 0)
b34976b6 2338 link_info.combreloc = TRUE;
db6751f2 2339 else if (strcmp (optarg, "nocombreloc") == 0)
b34976b6 2340 link_info.combreloc = FALSE;
8bd621d8 2341 else if (strcmp (optarg, "nocopyreloc") == 0)
0c7a8e5a 2342 link_info.nocopyreloc = TRUE;
8c37241b
JJ
2343 else if (strcmp (optarg, "relro") == 0)
2344 link_info.relro = TRUE;
2345 else if (strcmp (optarg, "norelro") == 0)
2346 link_info.relro = FALSE;
c192a133
AM
2347 else if (strcmp (optarg, "text") == 0)
2348 link_info.error_textrel = TRUE;
2349 else if (strcmp (optarg, "notext") == 0)
2350 link_info.error_textrel = FALSE;
2351 else if (strcmp (optarg, "textoff") == 0)
2352 link_info.error_textrel = FALSE;
88b882e9 2353EOF
fb42df5e 2354fi
88b882e9 2355
92b93329 2356fragment <<EOF
fb42df5e
AM
2357 else
2358 einfo (_("%P: warning: -z %s ignored.\n"), optarg);
6c1439be 2359 break;
e0ee487b 2360EOF
e0ee487b
L
2361
2362if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
92b93329 2363fragment <<EOF
e0ee487b
L
2364 $PARSE_AND_LIST_ARGS_CASES
2365EOF
2366fi
2367
92b93329 2368fragment <<EOF
e0ee487b
L
2369 }
2370
3bcf5557 2371 return TRUE;
e0ee487b
L
2372}
2373
41392f03 2374EOF
41392f03 2375
4b209b22 2376if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
92b93329 2377fragment <<EOF
41392f03 2378
e0ee487b 2379static void
0c7a8e5a 2380gld${EMULATION_NAME}_list_options (FILE * file)
e0ee487b 2381{
fb42df5e
AM
2382EOF
2383if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2384fragment <<EOF
7ee314fa
AM
2385 fprintf (file, _("\
2386 --audit=AUDITLIB Specify a library to use for auditing\n"));
2387 fprintf (file, _("\
fb42df5e
AM
2388 -Bgroup Selects group name lookup rules for DSO\n"));
2389EOF
2390fi
2391fragment <<EOF
2392 fprintf (file, _("\
2393 --build-id[=STYLE] Generate build ID note\n"));
e0ee487b 2394EOF
e0ee487b 2395if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2396fragment <<EOF
442996ee 2397 fprintf (file, _("\
fb42df5e 2398 -P AUDITLIB, --depaudit=AUDITLIB\n" "\
4724d37e 2399 Specify a library to use for auditing dependencies\n"));
442996ee
AM
2400 fprintf (file, _("\
2401 --disable-new-dtags Disable new dynamic tags\n"));
2402 fprintf (file, _("\
2403 --enable-new-dtags Enable new dynamic tags\n"));
2404 fprintf (file, _("\
2405 --eh-frame-hdr Create .eh_frame_hdr section\n"));
2406 fprintf (file, _("\
fb42df5e
AM
2407 --exclude-libs=LIBS Make all symbols in LIBS hidden\n"));
2408 fprintf (file, _("\
442996ee
AM
2409 --hash-style=STYLE Set hash style to sysv, gnu or both\n"));
2410 fprintf (file, _("\
2411 -z combreloc Merge dynamic relocs into one section and sort\n"));
fb42df5e
AM
2412EOF
2413fi
2414
2415fragment <<EOF
2416 fprintf (file, _("\
2417 -z common-page-size=SIZE Set common page size to SIZE\n"));
442996ee
AM
2418 fprintf (file, _("\
2419 -z defs Report unresolved symbols in object files.\n"));
2420 fprintf (file, _("\
2421 -z execstack Mark executable as requiring executable stack\n"));
fb42df5e
AM
2422EOF
2423
2424if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2425fragment <<EOF
442996ee 2426 fprintf (file, _("\
b039ef04 2427 -z global Make symbols in DSO available for subsequently\n\
4724d37e 2428 loaded objects\n"));
b039ef04 2429 fprintf (file, _("\
442996ee
AM
2430 -z initfirst Mark DSO to be initialized first at runtime\n"));
2431 fprintf (file, _("\
2432 -z interpose Mark object to interpose all DSOs but executable\n"));
2433 fprintf (file, _("\
2434 -z lazy Mark object lazy runtime binding (default)\n"));
2435 fprintf (file, _("\
2436 -z loadfltr Mark object requiring immediate process\n"));
fb42df5e
AM
2437EOF
2438fi
2439
2440fragment <<EOF
2441 fprintf (file, _("\
2442 -z max-page-size=SIZE Set maximum page size to SIZE\n"));
442996ee
AM
2443 fprintf (file, _("\
2444 -z muldefs Allow multiple definitions\n"));
fb42df5e
AM
2445EOF
2446
2447if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
2448fragment <<EOF
442996ee
AM
2449 fprintf (file, _("\
2450 -z nocombreloc Don't merge dynamic relocs into one section\n"));
2451 fprintf (file, _("\
2452 -z nocopyreloc Don't create copy relocs\n"));
2453 fprintf (file, _("\
2454 -z nodefaultlib Mark object not to use default search paths\n"));
2455 fprintf (file, _("\
2456 -z nodelete Mark DSO non-deletable at runtime\n"));
2457 fprintf (file, _("\
2458 -z nodlopen Mark DSO not available to dlopen\n"));
2459 fprintf (file, _("\
2460 -z nodump Mark DSO not available to dldump\n"));
fb42df5e
AM
2461EOF
2462fi
2463fragment <<EOF
442996ee
AM
2464 fprintf (file, _("\
2465 -z noexecstack Mark executable as not requiring executable stack\n"));
88b882e9 2466EOF
fb42df5e 2467if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
92b93329 2468fragment <<EOF
442996ee
AM
2469 fprintf (file, _("\
2470 -z norelro Don't create RELRO program header\n"));
442996ee
AM
2471 fprintf (file, _("\
2472 -z now Mark object non-lazy runtime binding\n"));
2473 fprintf (file, _("\
2474 -z origin Mark object requiring immediate \$ORIGIN\n\
4724d37e 2475 processing at runtime\n"));
442996ee
AM
2476 fprintf (file, _("\
2477 -z relro Create RELRO program header\n"));
07e15f87
NS
2478 fprintf (file, _("\
2479 -z stacksize=SIZE Set size of stack segment\n"));
88b882e9 2480EOF
e0ee487b
L
2481fi
2482
2483if test -n "$PARSE_AND_LIST_OPTIONS" ; then
92b93329 2484fragment <<EOF
e0ee487b
L
2485 $PARSE_AND_LIST_OPTIONS
2486EOF
2487fi
2488
92b93329 2489fragment <<EOF
e0ee487b
L
2490}
2491EOF
e0ee487b
L
2492
2493if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
92b93329 2494fragment <<EOF
e0ee487b
L
2495 $PARSE_AND_LIST_EPILOGUE
2496EOF
2497fi
41392f03 2498fi
e0ee487b 2499
92b93329 2500fragment <<EOF
252b5132 2501
60bcf0fa 2502struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
252b5132 2503{
41392f03
AM
2504 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
2505 ${LDEMUL_SYSLIB-syslib_default},
2506 ${LDEMUL_HLL-hll_default},
2507 ${LDEMUL_AFTER_PARSE-after_parse_default},
2508 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
eaeb0a9d 2509 ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation},
41392f03
AM
2510 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
2511 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
2512 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
2513 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
252b5132
RH
2514 "${EMULATION_NAME}",
2515 "${OUTPUT_FORMAT}",
eaeb0a9d 2516 ${LDEMUL_FINISH-finish_default},
41392f03
AM
2517 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
2518 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
2519 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
2520 ${LDEMUL_SET_SYMBOLS-NULL},
3bcf5557
AM
2521 ${LDEMUL_PARSE_ARGS-NULL},
2522 gld${EMULATION_NAME}_add_options,
2523 gld${EMULATION_NAME}_handle_option,
41392f03 2524 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
4b209b22 2525 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
4a43e768 2526 ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
41392f03 2527 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
fac1652d 2528 ${LDEMUL_NEW_VERS_PATTERN-NULL}
252b5132
RH
2529};
2530EOF
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