s/boolean/bfd_boolean/ s/true/TRUE/ s/false/FALSE/. Simplify
[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}:${MACHINE}
10fi
252b5132
RH
11cat >e${EMULATION_NAME}.c <<EOF
12/* This file is is generated by a shell script. DO NOT EDIT! */
13
14/* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME}
e3dc8847
HPN
15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
16 2002 Free Software Foundation, Inc.
252b5132
RH
17 Written by Steve Chamberlain <sac@cygnus.com>
18 ELF support by Ian Lance Taylor <ian@cygnus.com>
19
20This file is part of GLD, the Gnu Linker.
21
22This program is free software; you can redistribute it and/or modify
23it under the terms of the GNU General Public License as published by
24the Free Software Foundation; either version 2 of the License, or
25(at your option) any later version.
26
27This program is distributed in the hope that it will be useful,
28but WITHOUT ANY WARRANTY; without even the implied warranty of
29MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30GNU General Public License for more details.
31
32You should have received a copy of the GNU General Public License
33along with this program; if not, write to the Free Software
34Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
35
36#define TARGET_IS_${EMULATION_NAME}
37
38#include "bfd.h"
39#include "sysdep.h"
1c9acd94 40#include "libiberty.h"
3882b010 41#include "safe-ctype.h"
252b5132
RH
42
43#include "bfdlink.h"
44
45#include "ld.h"
46#include "ldmain.h"
252b5132
RH
47#include "ldmisc.h"
48#include "ldexp.h"
49#include "ldlang.h"
b71e2778
AM
50#include "ldfile.h"
51#include "ldemul.h"
df2a7313 52#include <ldgram.h>
e0ee487b 53#include "elf/common.h"
252b5132 54
cde43e70
AM
55static void gld${EMULATION_NAME}_before_parse
56 PARAMS ((void));
04925e1e 57static void gld${EMULATION_NAME}_vercheck
252b5132
RH
58 PARAMS ((lang_input_statement_type *));
59static void gld${EMULATION_NAME}_stat_needed
60 PARAMS ((lang_input_statement_type *));
b34976b6 61static bfd_boolean gld${EMULATION_NAME}_try_needed
cde43e70 62 PARAMS ((const char *, int));
b34976b6 63static bfd_boolean gld${EMULATION_NAME}_search_needed
252b5132 64 PARAMS ((const char *, const char *, int));
04925e1e 65static void gld${EMULATION_NAME}_check_needed
252b5132 66 PARAMS ((lang_input_statement_type *));
cde43e70
AM
67static void gld${EMULATION_NAME}_after_open
68 PARAMS ((void));
69static void gld${EMULATION_NAME}_find_exp_assignment
70 PARAMS ((etree_type *));
252b5132
RH
71static void gld${EMULATION_NAME}_find_statement_assignment
72 PARAMS ((lang_statement_union_type *));
cde43e70
AM
73static void gld${EMULATION_NAME}_before_allocation
74 PARAMS ((void));
b34976b6 75static bfd_boolean gld${EMULATION_NAME}_open_dynamic_archive
04925e1e 76 PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
cde43e70 77static lang_output_section_statement_type *output_rel_find
24cdb50a 78 PARAMS ((asection *));
73810896
AM
79static asection *output_prev_sec_find
80 PARAMS ((lang_output_section_statement_type *));
b34976b6 81static bfd_boolean gld${EMULATION_NAME}_place_orphan
252b5132 82 PARAMS ((lang_input_statement_type *, asection *));
73d074b4
DJ
83static void gld${EMULATION_NAME}_finish
84 PARAMS ((void));
cde43e70
AM
85static char *gld${EMULATION_NAME}_get_script
86 PARAMS ((int *isfile));
252b5132 87
41392f03
AM
88EOF
89
90# Import any needed special functions and/or overrides.
91#
92if test -n "$EXTRA_EM_FILE" ; then
93. ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
94fi
95
f813923c 96# Functions in this file can be overridden by setting the LDEMUL_* shell
41392f03
AM
97# variables. If the name of the overriding function is the same as is
98# defined in this file, then don't output this file's version.
99# If a different overriding name is given then output the standard function
100# as presumably it is called from the overriding function.
101#
102if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
103cat >>e${EMULATION_NAME}.c <<EOF
104
252b5132 105static void
41392f03 106gld${EMULATION_NAME}_before_parse ()
252b5132 107{
86af25fe
L
108 const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}");
109 if (arch)
110 {
111 ldfile_output_architecture = arch->arch;
112 ldfile_output_machine = arch->mach;
113 ldfile_output_machine_name = arch->printable_name;
114 }
115 else
116 ldfile_output_architecture = bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`;
b34976b6
AM
117 config.dynamic_link = ${DYNAMIC_LINK-TRUE};
118 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
252b5132
RH
119}
120
41392f03
AM
121EOF
122fi
123
124cat >>e${EMULATION_NAME}.c <<EOF
252b5132
RH
125
126/* These variables are required to pass information back and forth
127 between after_open and check_needed and stat_needed and vercheck. */
128
129static struct bfd_link_needed_list *global_needed;
130static struct stat global_stat;
b34976b6 131static bfd_boolean global_found;
252b5132 132static struct bfd_link_needed_list *global_vercheck_needed;
b34976b6 133static bfd_boolean global_vercheck_failed;
252b5132 134
252b5132 135
04925e1e
AM
136/* On Linux, it's possible to have different versions of the same
137 shared library linked against different versions of libc. The
138 dynamic linker somehow tags which libc version to use in
139 /etc/ld.so.cache, and, based on the libc that it sees in the
140 executable, chooses which version of the shared library to use.
252b5132 141
04925e1e
AM
142 We try to do a similar check here by checking whether this shared
143 library needs any other shared libraries which may conflict with
144 libraries we have already included in the link. If it does, we
145 skip it, and try to find another shared library farther on down the
146 link path.
252b5132 147
04925e1e
AM
148 This is called via lang_for_each_input_file.
149 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
f813923c 150 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
04925e1e 151 a conflicting version. */
252b5132 152
04925e1e
AM
153static void
154gld${EMULATION_NAME}_vercheck (s)
155 lang_input_statement_type *s;
156{
1c9acd94 157 const char *soname;
04925e1e 158 struct bfd_link_needed_list *l;
252b5132 159
04925e1e
AM
160 if (global_vercheck_failed)
161 return;
162 if (s->the_bfd == NULL
163 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
164 return;
252b5132 165
04925e1e
AM
166 soname = bfd_elf_get_dt_soname (s->the_bfd);
167 if (soname == NULL)
fed2999d 168 soname = lbasename (bfd_get_filename (s->the_bfd));
04925e1e
AM
169
170 for (l = global_vercheck_needed; l != NULL; l = l->next)
171 {
172 const char *suffix;
173
1c9acd94 174 if (strcmp (soname, l->name) == 0)
04925e1e
AM
175 {
176 /* Probably can't happen, but it's an easy check. */
177 continue;
252b5132
RH
178 }
179
04925e1e 180 if (strchr (l->name, '/') != NULL)
252b5132
RH
181 continue;
182
04925e1e
AM
183 suffix = strstr (l->name, ".so.");
184 if (suffix == NULL)
185 continue;
186
187 suffix += sizeof ".so." - 1;
188
1c9acd94 189 if (strncmp (soname, l->name, suffix - l->name) == 0)
04925e1e
AM
190 {
191 /* Here we know that S is a dynamic object FOO.SO.VER1, and
192 the object we are considering needs a dynamic object
193 FOO.SO.VER2, and VER1 and VER2 are different. This
194 appears to be a version mismatch, so we tell the caller
195 to try a different version of this library. */
b34976b6 196 global_vercheck_failed = TRUE;
04925e1e
AM
197 return;
198 }
252b5132
RH
199 }
200}
201
252b5132 202
04925e1e
AM
203/* See if an input file matches a DT_NEEDED entry by running stat on
204 the file. */
205
206static void
207gld${EMULATION_NAME}_stat_needed (s)
208 lang_input_statement_type *s;
252b5132 209{
04925e1e
AM
210 struct stat st;
211 const char *suffix;
212 const char *soname;
252b5132 213
04925e1e
AM
214 if (global_found)
215 return;
216 if (s->the_bfd == NULL)
217 return;
218
219 if (bfd_stat (s->the_bfd, &st) != 0)
252b5132 220 {
04925e1e
AM
221 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
222 return;
223 }
252b5132 224
04925e1e
AM
225 if (st.st_dev == global_stat.st_dev
226 && st.st_ino == global_stat.st_ino)
227 {
b34976b6 228 global_found = TRUE;
04925e1e
AM
229 return;
230 }
252b5132 231
04925e1e
AM
232 /* We issue a warning if it looks like we are including two
233 different versions of the same shared library. For example,
234 there may be a problem if -lc picks up libc.so.6 but some other
235 shared library has a DT_NEEDED entry of libc.so.5. This is a
f813923c 236 heuristic test, and it will only work if the name looks like
04925e1e
AM
237 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
238 If we really want to issue warnings about mixing version numbers
239 of shared libraries, we need to find a better way. */
252b5132 240
04925e1e
AM
241 if (strchr (global_needed->name, '/') != NULL)
242 return;
243 suffix = strstr (global_needed->name, ".so.");
244 if (suffix == NULL)
245 return;
246 suffix += sizeof ".so." - 1;
252b5132 247
04925e1e
AM
248 soname = bfd_elf_get_dt_soname (s->the_bfd);
249 if (soname == NULL)
fed2999d 250 soname = lbasename (s->filename);
252b5132 251
cde43e70 252 if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
04925e1e 253 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
1c9acd94 254 global_needed->name, global_needed->by, soname);
252b5132
RH
255}
256
04925e1e 257
252b5132
RH
258/* This function is called for each possible name for a dynamic object
259 named by a DT_NEEDED entry. The FORCE parameter indicates whether
260 to skip the check for a conflicting version. */
261
b34976b6 262static bfd_boolean
252b5132
RH
263gld${EMULATION_NAME}_try_needed (name, force)
264 const char *name;
265 int force;
266{
267 bfd *abfd;
ec4eb78a 268 const char *soname;
252b5132
RH
269
270 abfd = bfd_openr (name, bfd_get_target (output_bfd));
271 if (abfd == NULL)
b34976b6 272 return FALSE;
252b5132
RH
273 if (! bfd_check_format (abfd, bfd_object))
274 {
cde43e70 275 bfd_close (abfd);
b34976b6 276 return FALSE;
252b5132
RH
277 }
278 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
279 {
cde43e70 280 bfd_close (abfd);
b34976b6 281 return FALSE;
252b5132
RH
282 }
283
c4bb8067
L
284 /* For DT_NEEDED, they have to match. */
285 if (abfd->xvec != output_bfd->xvec)
286 {
287 bfd_close (abfd);
b34976b6 288 return FALSE;
c4bb8067
L
289 }
290
252b5132
RH
291 /* Check whether this object would include any conflicting library
292 versions. If FORCE is set, then we skip this check; we use this
293 the second time around, if we couldn't find any compatible
294 instance of the shared library. */
295
296 if (! force)
297 {
298 struct bfd_link_needed_list *needed;
299
300 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
301 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
302
303 if (needed != NULL)
304 {
305 global_vercheck_needed = needed;
b34976b6 306 global_vercheck_failed = FALSE;
252b5132
RH
307 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
308 if (global_vercheck_failed)
309 {
cde43e70 310 bfd_close (abfd);
b34976b6 311 /* Return FALSE to force the caller to move on to try
252b5132 312 another file on the search path. */
b34976b6 313 return FALSE;
252b5132
RH
314 }
315
316 /* But wait! It gets much worse. On Linux, if a shared
317 library does not use libc at all, we are supposed to skip
318 it the first time around in case we encounter a shared
319 library later on with the same name which does use the
320 version of libc that we want. This is much too horrible
321 to use on any system other than Linux. */
322
323EOF
324case ${target} in
325 *-*-linux-gnu*)
326 cat >>e${EMULATION_NAME}.c <<EOF
327 {
328 struct bfd_link_needed_list *l;
329
330 for (l = needed; l != NULL; l = l->next)
331 if (strncmp (l->name, "libc.so", 7) == 0)
332 break;
333 if (l == NULL)
334 {
cde43e70 335 bfd_close (abfd);
b34976b6 336 return FALSE;
252b5132
RH
337 }
338 }
339
340EOF
341 ;;
342esac
343cat >>e${EMULATION_NAME}.c <<EOF
344 }
345 }
346
347 /* We've found a dynamic object matching the DT_NEEDED entry. */
348
04925e1e
AM
349 /* We have already checked that there is no other input file of the
350 same name. We must now check again that we are not including the
351 same file twice. We need to do this because on many systems
352 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
353 reference libc.so.1. If we have already included libc.so, we
354 don't want to include libc.so.1 if they are the same file, and we
355 can only check that using stat. */
356
357 if (bfd_stat (abfd, &global_stat) != 0)
358 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
ec4eb78a
L
359
360 /* First strip off everything before the last '/'. */
fed2999d 361 soname = lbasename (abfd->filename);
ec4eb78a
L
362
363 if (trace_file_tries)
364 info_msg (_("found %s at %s\n"), soname, name);
365
b34976b6 366 global_found = FALSE;
04925e1e
AM
367 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
368 if (global_found)
369 {
b34976b6 370 /* Return TRUE to indicate that we found the file, even though
04925e1e 371 we aren't going to do anything with it. */
b34976b6 372 return TRUE;
04925e1e
AM
373 }
374
41392f03 375 /* Tell the ELF backend that we don't want the output file to have a
04925e1e
AM
376 DT_NEEDED entry for this file. */
377 bfd_elf_set_dt_needed_name (abfd, "");
378
04925e1e
AM
379 /* Tell the ELF backend that the output file needs a DT_NEEDED
380 entry for this file if it is used to resolve the reference in
381 a regular object. */
ec4eb78a 382 bfd_elf_set_dt_needed_soname (abfd, soname);
04925e1e
AM
383
384 /* Add this file into the symbol table. */
385 if (! bfd_link_add_symbols (abfd, &link_info))
386 einfo ("%F%B: could not read symbols: %E\n", abfd);
387
b34976b6 388 return TRUE;
04925e1e
AM
389}
390
391
392/* Search for a needed file in a path. */
393
b34976b6 394static bfd_boolean
04925e1e
AM
395gld${EMULATION_NAME}_search_needed (path, name, force)
396 const char *path;
397 const char *name;
398 int force;
399{
400 const char *s;
401 size_t len;
402
cc5ce052
UD
403 if (name[0] == '/')
404 return gld${EMULATION_NAME}_try_needed (name, force);
405
04925e1e 406 if (path == NULL || *path == '\0')
b34976b6 407 return FALSE;
04925e1e
AM
408 len = strlen (name);
409 while (1)
410 {
411 char *filename, *sset;
412
413 s = strchr (path, ':');
414 if (s == NULL)
415 s = path + strlen (path);
416
417 filename = (char *) xmalloc (s - path + len + 2);
418 if (s == path)
419 sset = filename;
420 else
421 {
422 memcpy (filename, path, s - path);
423 filename[s - path] = '/';
424 sset = filename + (s - path) + 1;
425 }
426 strcpy (sset, name);
427
428 if (gld${EMULATION_NAME}_try_needed (filename, force))
b34976b6 429 return TRUE;
04925e1e
AM
430
431 free (filename);
432
433 if (*s == '\0')
434 break;
435 path = s + 1;
436 }
437
b34976b6 438 return FALSE;
04925e1e
AM
439}
440
441EOF
442if [ "x${host}" = "x${target}" ] ; then
443 case " ${EMULATION_LIBPATH} " in
444 *" ${EMULATION_NAME} "*)
482e8b32
DB
445 case ${target} in
446 *-*-linux-gnu*)
447 cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
448
449/* For a native linker, check the file /etc/ld.so.conf for directories
450 in which we may find shared libraries. /etc/ld.so.conf is really
482e8b32 451 only meaningful on Linux. */
04925e1e 452
b34976b6 453static bfd_boolean gld${EMULATION_NAME}_check_ld_so_conf
04925e1e
AM
454 PARAMS ((const char *, int));
455
b34976b6 456static bfd_boolean
04925e1e
AM
457gld${EMULATION_NAME}_check_ld_so_conf (name, force)
458 const char *name;
459 int force;
460{
b34976b6 461 static bfd_boolean initialized;
04925e1e
AM
462 static char *ld_so_conf;
463
464 if (! initialized)
465 {
466 FILE *f;
467
468 f = fopen ("/etc/ld.so.conf", FOPEN_RT);
469 if (f != NULL)
470 {
471 char *b;
472 size_t len, alloc;
473 int c;
474
475 len = 0;
476 alloc = 100;
477 b = (char *) xmalloc (alloc);
478
479 while ((c = getc (f)) != EOF)
480 {
481 if (len + 1 >= alloc)
482 {
483 alloc *= 2;
484 b = (char *) xrealloc (b, alloc);
485 }
486 if (c != ':'
487 && c != ' '
488 && c != '\t'
489 && c != '\n'
490 && c != ',')
491 {
492 b[len] = c;
493 ++len;
494 }
495 else
496 {
497 if (len > 0 && b[len - 1] != ':')
498 {
499 b[len] = ':';
500 ++len;
501 }
502 }
503 }
504
505 if (len > 0 && b[len - 1] == ':')
506 --len;
252b5132 507
04925e1e
AM
508 if (len > 0)
509 b[len] = '\0';
510 else
511 {
512 free (b);
513 b = NULL;
514 }
252b5132 515
04925e1e 516 fclose (f);
252b5132 517
04925e1e
AM
518 ld_so_conf = b;
519 }
49e56c49 520
b34976b6 521 initialized = TRUE;
04925e1e 522 }
49e56c49 523
04925e1e 524 if (ld_so_conf == NULL)
b34976b6 525 return FALSE;
252b5132 526
04925e1e 527 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
252b5132
RH
528}
529
04925e1e 530EOF
482e8b32
DB
531 # Linux
532 ;;
533 esac
04925e1e
AM
534 esac
535fi
536cat >>e${EMULATION_NAME}.c <<EOF
537
252b5132
RH
538/* See if an input file matches a DT_NEEDED entry by name. */
539
540static void
541gld${EMULATION_NAME}_check_needed (s)
542 lang_input_statement_type *s;
543{
544 if (global_found)
545 return;
546
577a0623 547 if (s->filename != NULL)
252b5132 548 {
577a0623
AM
549 const char *f;
550
551 if (strcmp (s->filename, global_needed->name) == 0)
552 {
b34976b6 553 global_found = TRUE;
577a0623
AM
554 return;
555 }
556
557 if (s->search_dirs_flag)
558 {
559 f = strrchr (s->filename, '/');
560 if (f != NULL
561 && strcmp (f + 1, global_needed->name) == 0)
562 {
b34976b6 563 global_found = TRUE;
577a0623
AM
564 return;
565 }
566 }
252b5132
RH
567 }
568
569 if (s->the_bfd != NULL)
570 {
571 const char *soname;
572
573 soname = bfd_elf_get_dt_soname (s->the_bfd);
574 if (soname != NULL
575 && strcmp (soname, global_needed->name) == 0)
576 {
b34976b6 577 global_found = TRUE;
252b5132
RH
578 return;
579 }
580 }
252b5132
RH
581}
582
41392f03
AM
583EOF
584
585if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
586cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
587
588/* This is called after all the input files have been opened. */
252b5132
RH
589
590static void
04925e1e 591gld${EMULATION_NAME}_after_open ()
252b5132 592{
04925e1e 593 struct bfd_link_needed_list *needed, *l;
252b5132 594
04925e1e
AM
595 /* We only need to worry about this when doing a final link. */
596 if (link_info.relocateable || link_info.shared)
252b5132
RH
597 return;
598
04925e1e
AM
599 /* Get the list of files which appear in DT_NEEDED entries in
600 dynamic objects included in the link (often there will be none).
601 For each such file, we want to track down the corresponding
602 library, and include the symbol table in the link. This is what
603 the runtime dynamic linker will do. Tracking the files down here
604 permits one dynamic object to include another without requiring
605 special action by the person doing the link. Note that the
606 needed list can actually grow while we are stepping through this
607 loop. */
608 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
609 for (l = needed; l != NULL; l = l->next)
252b5132 610 {
04925e1e
AM
611 struct bfd_link_needed_list *ll;
612 int force;
252b5132 613
04925e1e
AM
614 /* If we've already seen this file, skip it. */
615 for (ll = needed; ll != l; ll = ll->next)
616 if (strcmp (ll->name, l->name) == 0)
617 break;
618 if (ll != l)
619 continue;
252b5132 620
04925e1e
AM
621 /* See if this file was included in the link explicitly. */
622 global_needed = l;
b34976b6 623 global_found = FALSE;
04925e1e
AM
624 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
625 if (global_found)
626 continue;
252b5132 627
ec4eb78a
L
628 if (trace_file_tries)
629 info_msg (_("%s needed by %B\n"), l->name, l->by);
630
04925e1e
AM
631 /* We need to find this file and include the symbol table. We
632 want to search for the file in the same way that the dynamic
633 linker will search. That means that we want to use
634 rpath_link, rpath, then the environment variable
ec4eb78a
L
635 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
636 entries (native only), then the linker script LIB_SEARCH_DIRS.
637 We do not search using the -L arguments.
252b5132 638
04925e1e
AM
639 We search twice. The first time, we skip objects which may
640 introduce version mismatches. The second time, we force
641 their use. See gld${EMULATION_NAME}_vercheck comment. */
642 for (force = 0; force < 2; force++)
643 {
04925e1e
AM
644 size_t len;
645 search_dirs_type *search;
6dd8c765
L
646EOF
647if [ "x${host}" = "x${target}" ] ; then
648 case " ${EMULATION_LIBPATH} " in
649 *" ${EMULATION_NAME} "*)
650cat >>e${EMULATION_NAME}.c <<EOF
dcb0bd0e 651 const char *lib_path;
6dd8c765
L
652 struct bfd_link_needed_list *rp;
653 int found;
654EOF
655 ;;
656 esac
657fi
658cat >>e${EMULATION_NAME}.c <<EOF
252b5132 659
04925e1e
AM
660 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
661 l->name, force))
662 break;
dcb0bd0e
L
663EOF
664if [ "x${host}" = "x${target}" ] ; then
665 case " ${EMULATION_LIBPATH} " in
666 *" ${EMULATION_NAME} "*)
667cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
668 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
669 l->name, force))
670 break;
671 if (command_line.rpath_link == NULL
672 && command_line.rpath == NULL)
673 {
674 lib_path = (const char *) getenv ("LD_RUN_PATH");
675 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name,
676 force))
677 break;
678 }
04925e1e
AM
679 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
680 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
681 break;
ec4eb78a
L
682
683 found = 0;
6dd8c765
L
684 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
685 for (; !found && rp != NULL; rp = rp->next)
ec4eb78a
L
686 {
687 found = (rp->by == l->by
688 && gld${EMULATION_NAME}_search_needed (rp->name,
689 l->name,
690 force));
691 }
692 if (found)
693 break;
694
04925e1e
AM
695EOF
696 ;;
697 esac
698fi
699cat >>e${EMULATION_NAME}.c <<EOF
700 len = strlen (l->name);
701 for (search = search_head; search != NULL; search = search->next)
702 {
703 char *filename;
252b5132 704
04925e1e
AM
705 if (search->cmdline)
706 continue;
707 filename = (char *) xmalloc (strlen (search->name) + len + 2);
708 sprintf (filename, "%s/%s", search->name, l->name);
709 if (gld${EMULATION_NAME}_try_needed (filename, force))
710 break;
711 free (filename);
712 }
713 if (search != NULL)
714 break;
715EOF
716if [ "x${host}" = "x${target}" ] ; then
717 case " ${EMULATION_LIBPATH} " in
718 *" ${EMULATION_NAME} "*)
482e8b32
DB
719 case ${target} in
720 *-*-linux-gnu*)
721 cat >>e${EMULATION_NAME}.c <<EOF
04925e1e
AM
722 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
723 break;
724EOF
482e8b32
DB
725 # Linux
726 ;;
727 esac
04925e1e
AM
728 ;;
729 esac
730fi
731cat >>e${EMULATION_NAME}.c <<EOF
732 }
252b5132 733
04925e1e
AM
734 if (force < 2)
735 continue;
252b5132 736
e374f1d9 737 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
04925e1e
AM
738 l->name, l->by);
739 }
740}
252b5132 741
41392f03
AM
742EOF
743fi
744
745cat >>e${EMULATION_NAME}.c <<EOF
252b5132 746
04925e1e 747/* Look through an expression for an assignment statement. */
252b5132 748
04925e1e
AM
749static void
750gld${EMULATION_NAME}_find_exp_assignment (exp)
751 etree_type *exp;
752{
753 struct bfd_link_hash_entry *h;
754
755 switch (exp->type.node_class)
252b5132 756 {
04925e1e
AM
757 case etree_provide:
758 h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
b34976b6 759 FALSE, FALSE, FALSE);
04925e1e
AM
760 if (h == NULL)
761 break;
252b5132 762
04925e1e
AM
763 /* We call record_link_assignment even if the symbol is defined.
764 This is because if it is defined by a dynamic object, we
765 actually want to use the value defined by the linker script,
766 not the value from the dynamic object (because we are setting
767 symbols like etext). If the symbol is defined by a regular
768 object, then, as it happens, calling record_link_assignment
769 will do no harm. */
770
771 /* Fall through. */
772 case etree_assign:
773 if (strcmp (exp->assign.dst, ".") != 0)
252b5132 774 {
04925e1e
AM
775 if (! (bfd_elf${ELFSIZE}_record_link_assignment
776 (output_bfd, &link_info, exp->assign.dst,
b34976b6 777 exp->type.node_class == etree_provide ? TRUE : FALSE)))
04925e1e
AM
778 einfo ("%P%F: failed to record assignment to %s: %E\n",
779 exp->assign.dst);
252b5132 780 }
04925e1e
AM
781 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
782 break;
252b5132 783
04925e1e
AM
784 case etree_binary:
785 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
786 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
787 break;
252b5132 788
04925e1e
AM
789 case etree_trinary:
790 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
791 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
792 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
793 break;
252b5132 794
04925e1e
AM
795 case etree_unary:
796 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
797 break;
252b5132 798
04925e1e
AM
799 default:
800 break;
252b5132
RH
801 }
802}
803
04925e1e
AM
804
805/* This is called by the before_allocation routine via
806 lang_for_each_statement. It locates any assignment statements, and
807 tells the ELF backend about them, in case they are assignments to
808 symbols which are referred to by dynamic objects. */
809
810static void
811gld${EMULATION_NAME}_find_statement_assignment (s)
812 lang_statement_union_type *s;
813{
814 if (s->header.type == lang_assignment_statement_enum)
815 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
816}
817
41392f03
AM
818EOF
819
820if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
57e6abd2
AO
821 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
822 ELF_INTERPRETER_SET_DEFAULT="
823 if (sinterp != NULL)
824 {
825 sinterp->contents = ${ELF_INTERPRETER_NAME};
826 sinterp->_raw_size = strlen (sinterp->contents) + 1;
827 }
828
829"
830 else
831 ELF_INTERPRETER_SET_DEFAULT=
832 fi
41392f03 833cat >>e${EMULATION_NAME}.c <<EOF
04925e1e 834
252b5132
RH
835/* This is called after the sections have been attached to output
836 sections, but before any sizes or addresses have been set. */
837
838static void
839gld${EMULATION_NAME}_before_allocation ()
840{
841 const char *rpath;
842 asection *sinterp;
843
844 /* If we are going to make any variable assignments, we need to let
845 the ELF backend know about them in case the variables are
846 referred to by dynamic objects. */
847 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
848
849 /* Let the ELF backend work out the sizes of any sections required
850 by dynamic linking. */
851 rpath = command_line.rpath;
852 if (rpath == NULL)
853 rpath = (const char *) getenv ("LD_RUN_PATH");
854 if (! (bfd_elf${ELFSIZE}_size_dynamic_sections
855 (output_bfd, command_line.soname, rpath,
605d9b3a 856 command_line.filter_shlib,
252b5132
RH
857 (const char * const *) command_line.auxiliary_filters,
858 &link_info, &sinterp, lang_elf_version_info)))
859 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
57e6abd2 860${ELF_INTERPRETER_SET_DEFAULT}
252b5132
RH
861 /* Let the user override the dynamic linker we are using. */
862 if (command_line.interpreter != NULL
863 && sinterp != NULL)
864 {
865 sinterp->contents = (bfd_byte *) command_line.interpreter;
866 sinterp->_raw_size = strlen (command_line.interpreter) + 1;
867 }
868
869 /* Look for any sections named .gnu.warning. As a GNU extensions,
870 we treat such sections as containing warning messages. We print
871 out the warning message, and then zero out the section size so
872 that it does not get copied into the output file. */
873
874 {
875 LANG_FOR_EACH_INPUT_STATEMENT (is)
876 {
877 asection *s;
878 bfd_size_type sz;
879 char *msg;
b34976b6 880 bfd_boolean ret;
252b5132
RH
881
882 if (is->just_syms_flag)
883 continue;
884
885 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
886 if (s == NULL)
887 continue;
888
889 sz = bfd_section_size (is->the_bfd, s);
890 msg = xmalloc ((size_t) sz + 1);
891 if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
892 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
893 is->the_bfd);
894 msg[sz] = '\0';
895 ret = link_info.callbacks->warning (&link_info, msg,
896 (const char *) NULL,
897 is->the_bfd, (asection *) NULL,
898 (bfd_vma) 0);
899 ASSERT (ret);
900 free (msg);
901
902 /* Clobber the section size, so that we don't waste copying the
903 warning into the output file. */
904 s->_raw_size = 0;
905 }
906 }
907}
908
41392f03
AM
909EOF
910fi
911
912if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
913cat >>e${EMULATION_NAME}.c <<EOF
252b5132 914
04925e1e
AM
915/* Try to open a dynamic archive. This is where we know that ELF
916 dynamic libraries have an extension of .so (or .sl on oddball systems
917 like hpux). */
918
b34976b6 919static bfd_boolean
04925e1e
AM
920gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
921 const char *arch;
922 search_dirs_type *search;
923 lang_input_statement_type *entry;
252b5132 924{
04925e1e
AM
925 const char *filename;
926 char *string;
252b5132 927
04925e1e 928 if (! entry->is_archive)
b34976b6 929 return FALSE;
252b5132 930
04925e1e 931 filename = entry->filename;
252b5132 932
04925e1e
AM
933 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
934 is defined, but it does not seem worth the headache to optimize
935 away those two bytes of space. */
936 string = (char *) xmalloc (strlen (search->name)
937 + strlen (filename)
938 + strlen (arch)
939#ifdef EXTRA_SHLIB_EXTENSION
940 + strlen (EXTRA_SHLIB_EXTENSION)
941#endif
942 + sizeof "/lib.so");
943
944 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
945
946#ifdef EXTRA_SHLIB_EXTENSION
947 /* Try the .so extension first. If that fails build a new filename
948 using EXTRA_SHLIB_EXTENSION. */
949 if (! ldfile_try_open_bfd (string, entry))
950 sprintf (string, "%s/lib%s%s%s", search->name,
951 filename, arch, EXTRA_SHLIB_EXTENSION);
952#endif
953
954 if (! ldfile_try_open_bfd (string, entry))
252b5132 955 {
04925e1e 956 free (string);
b34976b6 957 return FALSE;
04925e1e 958 }
252b5132 959
04925e1e 960 entry->filename = string;
252b5132 961
04925e1e
AM
962 /* We have found a dynamic object to include in the link. The ELF
963 backend linker will create a DT_NEEDED entry in the .dynamic
964 section naming this file. If this file includes a DT_SONAME
965 entry, it will be used. Otherwise, the ELF linker will just use
966 the name of the file. For an archive found by searching, like
967 this one, the DT_NEEDED entry should consist of just the name of
968 the file, without the path information used to find it. Note
969 that we only need to do this if we have a dynamic object; an
970 archive will never be referenced by a DT_NEEDED entry.
252b5132 971
04925e1e
AM
972 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
973 very pretty. I haven't been able to think of anything that is
974 pretty, though. */
975 if (bfd_check_format (entry->the_bfd, bfd_object)
976 && (entry->the_bfd->flags & DYNAMIC) != 0)
977 {
04925e1e 978 ASSERT (entry->is_archive && entry->search_dirs_flag);
252b5132 979
04925e1e 980 /* Rather than duplicating the logic above. Just use the
1c9acd94 981 filename we recorded earlier. */
04925e1e 982
fed2999d 983 filename = lbasename (entry->filename);
1c9acd94 984 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
04925e1e
AM
985 }
986
b34976b6 987 return TRUE;
04925e1e
AM
988}
989
41392f03
AM
990EOF
991fi
cde43e70
AM
992
993if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
41392f03
AM
994cat >>e${EMULATION_NAME}.c <<EOF
995
996/* A variant of lang_output_section_find. Used by place_orphan. */
04925e1e 997
04925e1e 998static lang_output_section_statement_type *
24cdb50a
AM
999output_rel_find (sec)
1000 asection *sec;
04925e1e
AM
1001{
1002 lang_statement_union_type *u;
1003 lang_output_section_statement_type *lookup;
ba493122
AM
1004 lang_output_section_statement_type *last = NULL;
1005 lang_output_section_statement_type *last_rel = NULL;
1006 lang_output_section_statement_type *last_rel_alloc = NULL;
24cdb50a 1007 int rela = sec->name[4] == 'a';
04925e1e 1008
ba493122 1009 for (u = lang_output_section_statement.head; u; u = lookup->next)
04925e1e
AM
1010 {
1011 lookup = &u->output_section_statement;
ba493122 1012 if (strncmp (".rel", lookup->name, 4) == 0)
04925e1e 1013 {
ba493122
AM
1014 /* Don't place after .rel.plt as doing so results in wrong
1015 dynamic tags. Also, place allocated reloc sections before
1016 non-allocated. */
24cdb50a 1017 int lookrela = lookup->name[4] == 'a';
ba493122 1018
24cdb50a 1019 if (strcmp (".plt", lookup->name + 4 + lookrela) == 0
ba493122
AM
1020 || (lookup->bfd_section != NULL
1021 && (lookup->bfd_section->flags & SEC_ALLOC) == 0))
1022 break;
24cdb50a
AM
1023 last = lookup;
1024 if (rela == lookrela)
1025 last_rel = lookup;
ba493122
AM
1026 if (lookup->bfd_section != NULL
1027 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1028 last_rel_alloc = lookup;
04925e1e 1029 }
252b5132 1030 }
ba493122
AM
1031
1032 if (last_rel_alloc)
1033 return last_rel_alloc;
1034
1035 if (last_rel)
1036 return last_rel;
1037
1038 return last;
252b5132
RH
1039}
1040
95500e1c
JJ
1041/* Find the last output section before given output statement.
1042 Used by place_orphan. */
1043
1044static asection *
1045output_prev_sec_find (os)
1046 lang_output_section_statement_type *os;
1047{
1048 asection *s = (asection *) NULL;
1049 lang_statement_union_type *u;
1050 lang_output_section_statement_type *lookup;
1051
1052 for (u = lang_output_section_statement.head;
1053 u != (lang_statement_union_type *) NULL;
1054 u = lookup->next)
1055 {
1056 lookup = &u->output_section_statement;
1057 if (lookup == os)
cde43e70
AM
1058 return s;
1059
1060 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
95500e1c
JJ
1061 s = lookup->bfd_section;
1062 }
1063
cde43e70 1064 return NULL;
95500e1c
JJ
1065}
1066
252b5132
RH
1067/* Place an orphan section. We use this to put random SHF_ALLOC
1068 sections in the right segment. */
1069
41392f03 1070struct orphan_save {
6a345e87 1071 lang_output_section_statement_type *os;
5ba47421 1072 asection **section;
6a345e87
AM
1073 lang_statement_union_type **stmt;
1074};
252b5132 1075
b34976b6 1076static bfd_boolean
252b5132
RH
1077gld${EMULATION_NAME}_place_orphan (file, s)
1078 lang_input_statement_type *file;
1079 asection *s;
1080{
aea4bd9d
AM
1081 static struct orphan_save hold_text;
1082 static struct orphan_save hold_rodata;
1083 static struct orphan_save hold_data;
1084 static struct orphan_save hold_bss;
1085 static struct orphan_save hold_rel;
1086 static struct orphan_save hold_interp;
c940e6fc 1087 static struct orphan_save hold_sdata;
f9989030 1088 static int count = 1;
6a345e87 1089 struct orphan_save *place;
71bfc0ae 1090 lang_statement_list_type *old;
252b5132
RH
1091 lang_statement_list_type add;
1092 etree_type *address;
a854a4a7 1093 const char *secname;
a854a4a7 1094 const char *ps = NULL;
252b5132 1095 lang_output_section_statement_type *os;
24cdb50a 1096 int isdyn = 0;
252b5132 1097
aea4bd9d 1098 secname = bfd_get_section_name (s->owner, s);
24cdb50a
AM
1099 if (! link_info.relocateable
1100 && link_info.combreloc
a8927cfd 1101 && (s->flags & SEC_ALLOC)
24cdb50a
AM
1102 && strncmp (secname, ".rel", 4) == 0)
1103 {
1104 if (secname[4] == 'a')
1105 secname = ".rela.dyn";
1106 else
1107 secname = ".rel.dyn";
1108 isdyn = 1;
1109 }
aea4bd9d 1110
24cdb50a 1111 if (isdyn || (!config.unique_orphan_sections && !unique_section_p (secname)))
252b5132 1112 {
6d02a667 1113 /* Look through the script to see where to place this section. */
a854a4a7
AM
1114 os = lang_output_section_find (secname);
1115
1116 if (os != NULL
0f33d40b
AM
1117 && (os->bfd_section == NULL
1118 || ((s->flags ^ os->bfd_section->flags)
1119 & (SEC_LOAD | SEC_ALLOC)) == 0))
a854a4a7 1120 {
0f33d40b 1121 /* We already have an output section statement with this
22af9fd3 1122 name, and its bfd section, if any, has compatible flags. */
39dcfe18 1123 lang_add_section (&os->children, s, os, file);
b34976b6 1124 return TRUE;
a854a4a7 1125 }
252b5132
RH
1126 }
1127
aea4bd9d
AM
1128 if (hold_text.os == NULL)
1129 hold_text.os = lang_output_section_find (".text");
252b5132
RH
1130
1131 /* If this is a final link, then always put .gnu.warning.SYMBOL
1132 sections into the .text section to get them out of the way. */
1133 if (! link_info.shared
1134 && ! link_info.relocateable
1135 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
6a345e87 1136 && hold_text.os != NULL)
252b5132 1137 {
39dcfe18 1138 lang_add_section (&hold_text.os->children, s, hold_text.os, file);
b34976b6 1139 return TRUE;
252b5132
RH
1140 }
1141
1142 /* Decide which segment the section should go in based on the
1143 section name and section flags. We put loadable .note sections
1144 right after the .interp section, so that the PT_NOTE segment is
1145 stored right after the program headers where the OS can read it
1146 in the first page. */
aea4bd9d
AM
1147#define HAVE_SECTION(hold, name) \
1148(hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1149
1d475d82 1150 if ((s->flags & SEC_EXCLUDE) != 0 && !link_info.relocateable)
22af9fd3
AM
1151 {
1152 if (s->output_section == NULL)
1153 s->output_section = bfd_abs_section_ptr;
b34976b6 1154 return TRUE;
22af9fd3 1155 }
71bfc0ae
AM
1156
1157 place = NULL;
1158 if ((s->flags & SEC_ALLOC) == 0)
1159 ;
252b5132 1160 else if ((s->flags & SEC_LOAD) != 0
577a0623 1161 && strncmp (secname, ".note", 5) == 0
aea4bd9d 1162 && HAVE_SECTION (hold_interp, ".interp"))
6a345e87 1163 place = &hold_interp;
252b5132 1164 else if ((s->flags & SEC_HAS_CONTENTS) == 0
aea4bd9d 1165 && HAVE_SECTION (hold_bss, ".bss"))
6a345e87 1166 place = &hold_bss;
c940e6fc
JW
1167 else if ((s->flags & SEC_SMALL_DATA) != 0
1168 && HAVE_SECTION (hold_sdata, ".sdata"))
1169 place = &hold_sdata;
252b5132 1170 else if ((s->flags & SEC_READONLY) == 0
aea4bd9d 1171 && HAVE_SECTION (hold_data, ".data"))
6a345e87 1172 place = &hold_data;
252b5132 1173 else if (strncmp (secname, ".rel", 4) == 0
ba493122 1174 && (s->flags & SEC_LOAD) != 0
aea4bd9d 1175 && (hold_rel.os != NULL
24cdb50a 1176 || (hold_rel.os = output_rel_find (s)) != NULL))
ba493122 1177 place = &hold_rel;
71bfc0ae 1178 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
aea4bd9d 1179 && HAVE_SECTION (hold_rodata, ".rodata"))
6a345e87 1180 place = &hold_rodata;
71bfc0ae 1181 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
6a345e87
AM
1182 && hold_text.os != NULL)
1183 place = &hold_text;
252b5132 1184
aea4bd9d
AM
1185#undef HAVE_SECTION
1186
252b5132
RH
1187 /* Choose a unique name for the section. This will be needed if the
1188 same section name appears in the input file with different
f813923c 1189 loadable or allocatable characteristics. */
24cdb50a 1190 if (bfd_get_section_by_name (output_bfd, secname) != NULL)
b3ea3584 1191 {
24cdb50a
AM
1192 secname = bfd_get_unique_section_name (output_bfd, secname, &count);
1193 if (secname == NULL)
b3ea3584
AM
1194 einfo ("%F%P: place_orphan failed: %E\n");
1195 }
252b5132 1196
71bfc0ae
AM
1197 /* Start building a list of statements for this section.
1198 First save the current statement pointer. */
1199 old = stat_ptr;
1200
1201 /* If we have found an appropriate place for the output section
1202 statements for this orphan, add them to our own private list,
1203 inserting them later into the global statement list. */
5ba47421 1204 if (place != NULL)
252b5132 1205 {
5ba47421
AM
1206 stat_ptr = &add;
1207 lang_list_init (stat_ptr);
71bfc0ae 1208 }
5ba47421 1209
71bfc0ae
AM
1210 if (config.build_constructors)
1211 {
5ba47421
AM
1212 /* If the name of the section is representable in C, then create
1213 symbols to mark the start and the end of the section. */
24cdb50a 1214 for (ps = secname; *ps != '\0'; ps++)
3882b010 1215 if (! ISALNUM (*ps) && *ps != '_')
5ba47421 1216 break;
71bfc0ae 1217 if (*ps == '\0')
5ba47421
AM
1218 {
1219 char *symname;
1220 etree_type *e_align;
1221
24cdb50a
AM
1222 symname = (char *) xmalloc (ps - secname + sizeof "__start_");
1223 sprintf (symname, "__start_%s", secname);
5ba47421
AM
1224 e_align = exp_unop (ALIGN_K,
1225 exp_intop ((bfd_vma) 1 << s->alignment_power));
1226 lang_add_assignment (exp_assop ('=', symname, e_align));
1227 }
252b5132
RH
1228 }
1229
01cc8ff8 1230 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
252b5132 1231 address = exp_intop ((bfd_vma) 0);
01cc8ff8
AM
1232 else
1233 address = NULL;
252b5132 1234
24cdb50a 1235 os = lang_enter_output_section_statement (secname, address, 0,
aea4bd9d
AM
1236 (bfd_vma) 0,
1237 (etree_type *) NULL,
1238 (etree_type *) NULL,
1239 (etree_type *) NULL);
252b5132 1240
39dcfe18 1241 lang_add_section (&os->children, s, os, file);
252b5132 1242
20d04697
L
1243 lang_leave_output_section_statement
1244 ((bfd_vma) 0, "*default*",
ee3cc2e2 1245 (struct lang_output_section_phdr_list *) NULL, NULL);
20d04697 1246
71bfc0ae 1247 if (config.build_constructors && *ps == '\0')
252b5132 1248 {
71bfc0ae 1249 char *symname;
252b5132 1250
71bfc0ae
AM
1251 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1252 stat_ptr back where we want it. */
1253 if (place != NULL)
1254 stat_ptr = &add;
252b5132 1255
24cdb50a
AM
1256 symname = (char *) xmalloc (ps - secname + sizeof "__stop_");
1257 sprintf (symname, "__stop_%s", secname);
71bfc0ae
AM
1258 lang_add_assignment (exp_assop ('=', symname,
1259 exp_nameop (NAME, ".")));
1260 }
5ba47421 1261
71bfc0ae
AM
1262 /* Restore the global list pointer. */
1263 stat_ptr = old;
1264
25844aae 1265 if (place != NULL && os->bfd_section != NULL)
71bfc0ae 1266 {
cde43e70 1267 asection *snew, **pps;
5ba47421
AM
1268
1269 snew = os->bfd_section;
95500e1c 1270
cde43e70
AM
1271 /* Shuffle the bfd section list to make the output file look
1272 neater. This is really only cosmetic. */
1273 if (place->section == NULL)
5ba47421 1274 {
cde43e70 1275 asection *bfd_section = place->os->bfd_section;
5ba47421 1276
cde43e70
AM
1277 /* If the output statement hasn't been used to place
1278 any input sections (and thus doesn't have an output
1279 bfd_section), look for the closest prior output statement
1280 having an output section. */
1281 if (bfd_section == NULL)
1282 bfd_section = output_prev_sec_find (place->os);
1283
1284 if (bfd_section != NULL && bfd_section != snew)
1285 place->section = &bfd_section->next;
1286 }
1287
1288 if (place->section != NULL)
1289 {
3dfe7a8c 1290 /* Unlink the section. */
5ba47421
AM
1291 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1292 ;
3dfe7a8c 1293 bfd_section_list_remove (output_bfd, pps);
5ba47421
AM
1294
1295 /* Now tack it on to the "place->os" section list. */
3dfe7a8c 1296 bfd_section_list_insert (output_bfd, place->section, snew);
5ba47421 1297 }
5ba47421 1298
cde43e70
AM
1299 /* Save the end of this list. Further ophans of this type will
1300 follow the one we've just added. */
1301 place->section = &snew->next;
1302
1303 /* The following is non-cosmetic. We try to put the output
1304 statements in some sort of reasonable order here, because
1305 they determine the final load addresses of the orphan
1306 sections. In addition, placing output statements in the
1307 wrong order may require extra segments. For instance,
1308 given a typical situation of all read-only sections placed
1309 in one segment and following that a segment containing all
1310 the read-write sections, we wouldn't want to place an orphan
1311 read/write section before or amongst the read-only ones. */
ed15ac6a 1312 if (add.head != NULL)
01cc8ff8 1313 {
ed15ac6a
AM
1314 if (place->stmt == NULL)
1315 {
1316 /* Put the new statement list right at the head. */
1317 *add.tail = place->os->header.next;
1318 place->os->header.next = add.head;
1319 }
1320 else
1321 {
1322 /* Put it after the last orphan statement we added. */
1323 *add.tail = *place->stmt;
1324 *place->stmt = add.head;
1325 }
71bfc0ae 1326
ed15ac6a
AM
1327 /* Fix the global list pointer if we happened to tack our
1328 new list at the tail. */
1329 if (*old->tail == add.head)
1330 old->tail = add.tail;
71bfc0ae 1331
ed15ac6a
AM
1332 /* Save the end of this list. */
1333 place->stmt = add.tail;
1334 }
6a345e87 1335 }
252b5132 1336
b34976b6 1337 return TRUE;
252b5132 1338}
c56feb2b
AM
1339EOF
1340fi
1341
1342if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
1343cat >>e${EMULATION_NAME}.c <<EOF
252b5132 1344
73d074b4
DJ
1345static void
1346gld${EMULATION_NAME}_finish ()
1347{
65765700 1348 if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
73d074b4 1349 {
e3dc8847
HPN
1350 lang_reset_memory_regions ();
1351
73d074b4
DJ
1352 /* Resize the sections. */
1353 lang_size_sections (stat_ptr->head, abs_output_section,
ca0b5847 1354 &stat_ptr->head, 0, (bfd_vma) 0, NULL);
73d074b4
DJ
1355
1356 /* Redo special stuff. */
1357 ldemul_after_allocation ();
1358
1359 /* Do the assignments again. */
1360 lang_do_assignments (stat_ptr->head, abs_output_section,
2c382fb6 1361 (fill_type *) 0, (bfd_vma) 0);
73d074b4
DJ
1362 }
1363}
41392f03
AM
1364EOF
1365fi
1366
1367if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1368cat >>e${EMULATION_NAME}.c <<EOF
252b5132
RH
1369
1370static char *
41392f03 1371gld${EMULATION_NAME}_get_script (isfile)
252b5132
RH
1372 int *isfile;
1373EOF
1374
1375if test -n "$COMPILE_IN"
1376then
1377# Scripts compiled in.
1378
1379# sed commands to quote an ld script as a C string.
597e2591 1380sc="-f stringify.sed"
252b5132
RH
1381
1382cat >>e${EMULATION_NAME}.c <<EOF
60bcf0fa 1383{
252b5132
RH
1384 *isfile = 0;
1385
b34976b6 1386 if (link_info.relocateable && config.build_constructors)
597e2591 1387 return
252b5132 1388EOF
b34976b6
AM
1389sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1390echo ' ; else if (link_info.relocateable) return' >> e${EMULATION_NAME}.c
1391sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1392echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1393sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
61585df2 1394if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
b34976b6
AM
1395echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1396sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
db6751f2 1397fi
252b5132 1398if test -n "$GENERATE_SHLIB_SCRIPT" ; then
82434356 1399if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
db6751f2 1400echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
b34976b6 1401sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
82434356 1402fi
b34976b6
AM
1403echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1404sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
252b5132 1405fi
82434356 1406if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
b34976b6
AM
1407echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1408sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
82434356 1409fi
b34976b6
AM
1410echo ' ; else return' >> e${EMULATION_NAME}.c
1411sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1412echo '; }' >> e${EMULATION_NAME}.c
252b5132
RH
1413
1414else
1415# Scripts read from the filesystem.
1416
1417cat >>e${EMULATION_NAME}.c <<EOF
60bcf0fa 1418{
252b5132
RH
1419 *isfile = 1;
1420
b34976b6 1421 if (link_info.relocateable && config.build_constructors)
252b5132 1422 return "ldscripts/${EMULATION_NAME}.xu";
b34976b6 1423 else if (link_info.relocateable)
252b5132
RH
1424 return "ldscripts/${EMULATION_NAME}.xr";
1425 else if (!config.text_read_only)
1426 return "ldscripts/${EMULATION_NAME}.xbn";
1427 else if (!config.magic_demand_paged)
1428 return "ldscripts/${EMULATION_NAME}.xn";
1429 else if (link_info.shared)
1430 return "ldscripts/${EMULATION_NAME}.xs";
1431 else
1432 return "ldscripts/${EMULATION_NAME}.x";
1433}
252b5132 1434
3b108066 1435EOF
41392f03
AM
1436fi
1437fi
3b108066 1438
41392f03 1439if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
3b108066 1440
4b209b22 1441if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
3b108066 1442
e0ee487b
L
1443if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1444cat >>e${EMULATION_NAME}.c <<EOF
1445 $PARSE_AND_LIST_PROLOGUE
1446EOF
1447fi
1448
e0ee487b
L
1449cat >>e${EMULATION_NAME}.c <<EOF
1450
1451#include "getopt.h"
1452
6c1439be
L
1453#define OPTION_DISABLE_NEW_DTAGS (400)
1454#define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
a1ab1d2a 1455#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
65765700 1456#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
6c1439be 1457
e0ee487b
L
1458static struct option longopts[] =
1459{
1460EOF
e0ee487b
L
1461
1462if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1463cat >>e${EMULATION_NAME}.c <<EOF
699845ef
L
1464 /* getopt allows abbreviations, so we do this to stop it from
1465 treating -d/-e as abbreviations for these options. */
6c1439be 1466 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
699845ef
L
1467 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1468 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
6c1439be 1469 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
65765700 1470 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
a1ab1d2a
UD
1471 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1472 {"Bgroup", no_argument, NULL, OPTION_GROUP},
e0ee487b
L
1473EOF
1474fi
1475
1476if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1477cat >>e${EMULATION_NAME}.c <<EOF
1478 $PARSE_AND_LIST_LONGOPTS
1479EOF
1480fi
1481
e0ee487b
L
1482cat >>e${EMULATION_NAME}.c <<EOF
1483 {NULL, no_argument, NULL, 0}
1484};
1485
04925e1e 1486
4b209b22 1487static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
41392f03 1488
e0ee487b 1489static int
4b209b22 1490gld${EMULATION_NAME}_parse_args (argc, argv)
e0ee487b
L
1491 int argc;
1492 char ** argv;
1493{
4b209b22
AM
1494 int longind;
1495 int optc;
1496 static int prevoptind = -1;
e0ee487b
L
1497 int prevopterr = opterr;
1498 int wanterror;
e0ee487b 1499
4b209b22 1500 if (prevoptind != optind)
e0ee487b
L
1501 opterr = 0;
1502
4b209b22
AM
1503 wanterror = opterr;
1504 prevoptind = optind;
1505
41392f03
AM
1506 optc = getopt_long_only (argc, argv,
1507 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1508 &longind);
e0ee487b
L
1509 opterr = prevopterr;
1510
1511 switch (optc)
1512 {
1513 default:
1514 if (wanterror)
1515 xexit (1);
4b209b22 1516 optind = prevoptind;
e0ee487b 1517 return 0;
6c1439be 1518
e0ee487b 1519EOF
e0ee487b
L
1520
1521if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1522cat >>e${EMULATION_NAME}.c <<EOF
6c1439be 1523 case OPTION_DISABLE_NEW_DTAGS:
b34976b6 1524 link_info.new_dtags = FALSE;
6c1439be
L
1525 break;
1526
1527 case OPTION_ENABLE_NEW_DTAGS:
b34976b6 1528 link_info.new_dtags = TRUE;
6c1439be
L
1529 break;
1530
65765700 1531 case OPTION_EH_FRAME_HDR:
b34976b6 1532 link_info.eh_frame_hdr = TRUE;
65765700
JJ
1533 break;
1534
a1ab1d2a
UD
1535 case OPTION_GROUP:
1536 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1537 /* Groups must be self-contained. */
b34976b6 1538 link_info.no_undefined = TRUE;
a1ab1d2a
UD
1539 break;
1540
e0ee487b
L
1541 case 'z':
1542 if (strcmp (optarg, "initfirst") == 0)
1543 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1544 else if (strcmp (optarg, "interpose") == 0)
1545 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1546 else if (strcmp (optarg, "loadfltr") == 0)
1547 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1548 else if (strcmp (optarg, "nodefaultlib") == 0)
1549 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1550 else if (strcmp (optarg, "nodelete") == 0)
1551 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1552 else if (strcmp (optarg, "nodlopen") == 0)
1553 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1554 else if (strcmp (optarg, "nodump") == 0)
1555 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1556 else if (strcmp (optarg, "now") == 0)
1557 {
1558 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1559 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1560 }
1561 else if (strcmp (optarg, "origin") == 0)
1562 {
1563 link_info.flags |= (bfd_vma) DF_ORIGIN;
1564 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1565 }
a1ab1d2a 1566 else if (strcmp (optarg, "defs") == 0)
b34976b6 1567 link_info.no_undefined = TRUE;
aa713662 1568 else if (strcmp (optarg, "muldefs") == 0)
b34976b6 1569 link_info.allow_multiple_definition = TRUE;
db6751f2 1570 else if (strcmp (optarg, "combreloc") == 0)
b34976b6 1571 link_info.combreloc = TRUE;
db6751f2 1572 else if (strcmp (optarg, "nocombreloc") == 0)
b34976b6 1573 link_info.combreloc = FALSE;
8bd621d8 1574 else if (strcmp (optarg, "nocopyreloc") == 0)
b34976b6 1575 link_info.nocopyreloc = TRUE;
e0ee487b 1576 /* What about the other Solaris -z options? FIXME. */
6c1439be 1577 break;
e0ee487b
L
1578EOF
1579fi
1580
1581if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1582cat >>e${EMULATION_NAME}.c <<EOF
1583 $PARSE_AND_LIST_ARGS_CASES
1584EOF
1585fi
1586
e0ee487b
L
1587cat >>e${EMULATION_NAME}.c <<EOF
1588 }
1589
1590 return 1;
1591}
1592
41392f03
AM
1593EOF
1594fi
1595
4b209b22 1596if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
41392f03
AM
1597cat >>e${EMULATION_NAME}.c <<EOF
1598
4b209b22 1599static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
04925e1e 1600
e0ee487b 1601static void
4b209b22 1602gld${EMULATION_NAME}_list_options (file)
e0ee487b
L
1603 FILE * file;
1604{
1605EOF
e0ee487b
L
1606
1607if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1608cat >>e${EMULATION_NAME}.c <<EOF
a1ab1d2a 1609 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
6c1439be
L
1610 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1611 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
65765700 1612 fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
ec38dd05 1613 fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
a1ab1d2a 1614 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
f813923c
HPN
1615 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1616 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
e0ee487b 1617 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
aa713662 1618 fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n"));
146e7110
AM
1619 fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
1620 fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
e0ee487b
L
1621 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1622 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
f813923c
HPN
1623 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1624 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
e0ee487b 1625 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
73e87d70 1626 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
19e3be22 1627 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
e0ee487b
L
1628EOF
1629fi
1630
1631if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1632cat >>e${EMULATION_NAME}.c <<EOF
1633 $PARSE_AND_LIST_OPTIONS
1634EOF
1635fi
1636
e0ee487b
L
1637cat >>e${EMULATION_NAME}.c <<EOF
1638}
1639EOF
e0ee487b
L
1640
1641if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1642cat >>e${EMULATION_NAME}.c <<EOF
1643 $PARSE_AND_LIST_EPILOGUE
1644EOF
1645fi
41392f03
AM
1646fi
1647else
4b209b22 1648if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
41392f03 1649cat >>e${EMULATION_NAME}.c <<EOF
4b209b22 1650#define gld${EMULATION_NAME}_parse_args NULL
41392f03
AM
1651EOF
1652fi
4b209b22 1653if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
41392f03 1654cat >>e${EMULATION_NAME}.c <<EOF
4b209b22 1655#define gld${EMULATION_NAME}_list_options NULL
41392f03
AM
1656EOF
1657fi
1658fi
e0ee487b 1659
252b5132
RH
1660cat >>e${EMULATION_NAME}.c <<EOF
1661
60bcf0fa 1662struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
252b5132 1663{
41392f03
AM
1664 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1665 ${LDEMUL_SYSLIB-syslib_default},
1666 ${LDEMUL_HLL-hll_default},
1667 ${LDEMUL_AFTER_PARSE-after_parse_default},
1668 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1669 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1670 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1671 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1672 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1673 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
252b5132
RH
1674 "${EMULATION_NAME}",
1675 "${OUTPUT_FORMAT}",
c56feb2b 1676 ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish},
41392f03
AM
1677 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1678 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1679 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1680 ${LDEMUL_SET_SYMBOLS-NULL},
4b209b22 1681 ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args},
41392f03 1682 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
4b209b22 1683 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
41392f03
AM
1684 ${LDEMUL_RECOGNIZED_FILE-NULL},
1685 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
fac1652d 1686 ${LDEMUL_NEW_VERS_PATTERN-NULL}
252b5132
RH
1687};
1688EOF
This page took 0.237693 seconds and 4 git commands to generate.