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
5 test -z "${ELFSIZE}" && ELFSIZE=32
6 if [ -z "$MACHINE" ]; then
9 OUTPUT_ARCH=${ARCH}:${MACHINE}
11 cat >e${EMULATION_NAME}.c <<EOF
12 /* This file is is generated by a shell script. DO NOT EDIT! */
14 /* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME}
15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
16 2002 Free Software Foundation, Inc.
17 Written by Steve Chamberlain <sac@cygnus.com>
18 ELF support by Ian Lance Taylor <ian@cygnus.com>
20 This file is part of GLD, the Gnu Linker.
22 This program is free software; you can redistribute it and/or modify
23 it under the terms of the GNU General Public License as published by
24 the Free Software Foundation; either version 2 of the License, or
25 (at your option) any later version.
27 This program is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 GNU General Public License for more details.
32 You should have received a copy of the GNU General Public License
33 along with this program; if not, write to the Free Software
34 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
36 #define TARGET_IS_${EMULATION_NAME}
40 #include "libiberty.h"
41 #include "safe-ctype.h"
53 #include "elf/common.h"
55 static void gld${EMULATION_NAME}_before_parse
57 static void gld${EMULATION_NAME}_vercheck
58 PARAMS ((lang_input_statement_type *));
59 static void gld${EMULATION_NAME}_stat_needed
60 PARAMS ((lang_input_statement_type *));
61 static boolean gld${EMULATION_NAME}_try_needed
62 PARAMS ((const char *, int));
63 static boolean gld${EMULATION_NAME}_search_needed
64 PARAMS ((const char *, const char *, int));
65 static void gld${EMULATION_NAME}_check_needed
66 PARAMS ((lang_input_statement_type *));
67 static void gld${EMULATION_NAME}_after_open
69 static void gld${EMULATION_NAME}_find_exp_assignment
70 PARAMS ((etree_type *));
71 static void gld${EMULATION_NAME}_find_statement_assignment
72 PARAMS ((lang_statement_union_type *));
73 static void gld${EMULATION_NAME}_before_allocation
75 static boolean gld${EMULATION_NAME}_open_dynamic_archive
76 PARAMS ((const char *, search_dirs_type *, lang_input_statement_type *));
77 static lang_output_section_statement_type *output_rel_find
79 static asection *output_prev_sec_find
80 PARAMS ((lang_output_section_statement_type *));
81 static boolean gld${EMULATION_NAME}_place_orphan
82 PARAMS ((lang_input_statement_type *, asection *));
83 static void gld${EMULATION_NAME}_finish
85 static char *gld${EMULATION_NAME}_get_script
86 PARAMS ((int *isfile));
90 # Import any needed special functions and/or overrides.
92 if test -n "$EXTRA_EM_FILE" ; then
93 . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
96 # Functions in this file can be overridden by setting the LDEMUL_* shell
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.
102 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
103 cat >>e${EMULATION_NAME}.c <<EOF
106 gld${EMULATION_NAME}_before_parse ()
108 const bfd_arch_info_type *arch = bfd_scan_arch ("${OUTPUT_ARCH}");
111 ldfile_output_architecture = arch->arch;
112 ldfile_output_machine = arch->mach;
113 ldfile_output_machine_name = arch->printable_name;
116 ldfile_output_architecture = bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`;
117 config.dynamic_link = ${DYNAMIC_LINK-true};
118 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`;
124 cat >>e${EMULATION_NAME}.c <<EOF
126 /* These variables are required to pass information back and forth
127 between after_open and check_needed and stat_needed and vercheck. */
129 static struct bfd_link_needed_list *global_needed;
130 static struct stat global_stat;
131 static boolean global_found;
132 static struct bfd_link_needed_list *global_vercheck_needed;
133 static boolean global_vercheck_failed;
136 /* On Linux, it's possible to have different versions of the same
137 shared library linked against different versions of libc. The
138 dynamic linker somehow tags which libc version to use in
139 /etc/ld.so.cache, and, based on the libc that it sees in the
140 executable, chooses which version of the shared library to use.
142 We try to do a similar check here by checking whether this shared
143 library needs any other shared libraries which may conflict with
144 libraries we have already included in the link. If it does, we
145 skip it, and try to find another shared library farther on down the
148 This is called via lang_for_each_input_file.
149 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
150 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
151 a conflicting version. */
154 gld${EMULATION_NAME}_vercheck (s)
155 lang_input_statement_type *s;
158 struct bfd_link_needed_list *l;
160 if (global_vercheck_failed)
162 if (s->the_bfd == NULL
163 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
166 soname = bfd_elf_get_dt_soname (s->the_bfd);
168 soname = lbasename (bfd_get_filename (s->the_bfd));
170 for (l = global_vercheck_needed; l != NULL; l = l->next)
174 if (strcmp (soname, l->name) == 0)
176 /* Probably can't happen, but it's an easy check. */
180 if (strchr (l->name, '/') != NULL)
183 suffix = strstr (l->name, ".so.");
187 suffix += sizeof ".so." - 1;
189 if (strncmp (soname, l->name, suffix - l->name) == 0)
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. */
196 global_vercheck_failed = true;
203 /* See if an input file matches a DT_NEEDED entry by running stat on
207 gld${EMULATION_NAME}_stat_needed (s)
208 lang_input_statement_type *s;
216 if (s->the_bfd == NULL)
219 if (bfd_stat (s->the_bfd, &st) != 0)
221 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
225 if (st.st_dev == global_stat.st_dev
226 && st.st_ino == global_stat.st_ino)
232 /* We issue a warning if it looks like we are including two
233 different versions of the same shared library. For example,
234 there may be a problem if -lc picks up libc.so.6 but some other
235 shared library has a DT_NEEDED entry of libc.so.5. This is a
236 heuristic test, and it will only work if the name looks like
237 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
238 If we really want to issue warnings about mixing version numbers
239 of shared libraries, we need to find a better way. */
241 if (strchr (global_needed->name, '/') != NULL)
243 suffix = strstr (global_needed->name, ".so.");
246 suffix += sizeof ".so." - 1;
248 soname = bfd_elf_get_dt_soname (s->the_bfd);
250 soname = lbasename (s->filename);
252 if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
253 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
254 global_needed->name, global_needed->by, soname);
258 /* This function is called for each possible name for a dynamic object
259 named by a DT_NEEDED entry. The FORCE parameter indicates whether
260 to skip the check for a conflicting version. */
263 gld${EMULATION_NAME}_try_needed (name, force)
270 abfd = bfd_openr (name, bfd_get_target (output_bfd));
273 if (! bfd_check_format (abfd, bfd_object))
278 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
284 /* Check whether this object would include any conflicting library
285 versions. If FORCE is set, then we skip this check; we use this
286 the second time around, if we couldn't find any compatible
287 instance of the shared library. */
291 struct bfd_link_needed_list *needed;
293 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
294 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
298 global_vercheck_needed = needed;
299 global_vercheck_failed = false;
300 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
301 if (global_vercheck_failed)
304 /* Return false to force the caller to move on to try
305 another file on the search path. */
309 /* But wait! It gets much worse. On Linux, if a shared
310 library does not use libc at all, we are supposed to skip
311 it the first time around in case we encounter a shared
312 library later on with the same name which does use the
313 version of libc that we want. This is much too horrible
314 to use on any system other than Linux. */
319 cat >>e${EMULATION_NAME}.c <<EOF
321 struct bfd_link_needed_list *l;
323 for (l = needed; l != NULL; l = l->next)
324 if (strncmp (l->name, "libc.so", 7) == 0)
336 cat >>e${EMULATION_NAME}.c <<EOF
340 /* We've found a dynamic object matching the DT_NEEDED entry. */
342 /* We have already checked that there is no other input file of the
343 same name. We must now check again that we are not including the
344 same file twice. We need to do this because on many systems
345 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
346 reference libc.so.1. If we have already included libc.so, we
347 don't want to include libc.so.1 if they are the same file, and we
348 can only check that using stat. */
350 if (bfd_stat (abfd, &global_stat) != 0)
351 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
353 /* First strip off everything before the last '/'. */
354 soname = lbasename (abfd->filename);
356 if (trace_file_tries)
357 info_msg (_("found %s at %s\n"), soname, name);
359 global_found = false;
360 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
363 /* Return true to indicate that we found the file, even though
364 we aren't going to do anything with it. */
368 /* Tell the ELF backend that we don't want the output file to have a
369 DT_NEEDED entry for this file. */
370 bfd_elf_set_dt_needed_name (abfd, "");
372 /* Tell the ELF backend that the output file needs a DT_NEEDED
373 entry for this file if it is used to resolve the reference in
375 bfd_elf_set_dt_needed_soname (abfd, soname);
377 /* Add this file into the symbol table. */
378 if (! bfd_link_add_symbols (abfd, &link_info))
379 einfo ("%F%B: could not read symbols: %E\n", abfd);
385 /* Search for a needed file in a path. */
388 gld${EMULATION_NAME}_search_needed (path, name, force)
397 return gld${EMULATION_NAME}_try_needed (name, force);
399 if (path == NULL || *path == '\0')
404 char *filename, *sset;
406 s = strchr (path, ':');
408 s = path + strlen (path);
410 filename = (char *) xmalloc (s - path + len + 2);
415 memcpy (filename, path, s - path);
416 filename[s - path] = '/';
417 sset = filename + (s - path) + 1;
421 if (gld${EMULATION_NAME}_try_needed (filename, force))
435 if [ "x${host}" = "x${target}" ] ; then
436 case " ${EMULATION_LIBPATH} " in
437 *" ${EMULATION_NAME} "*)
440 cat >>e${EMULATION_NAME}.c <<EOF
442 /* For a native linker, check the file /etc/ld.so.conf for directories
443 in which we may find shared libraries. /etc/ld.so.conf is really
444 only meaningful on Linux. */
446 static boolean gld${EMULATION_NAME}_check_ld_so_conf
447 PARAMS ((const char *, int));
450 gld${EMULATION_NAME}_check_ld_so_conf (name, force)
454 static boolean initialized;
455 static char *ld_so_conf;
461 f = fopen ("/etc/ld.so.conf", FOPEN_RT);
470 b = (char *) xmalloc (alloc);
472 while ((c = getc (f)) != EOF)
474 if (len + 1 >= alloc)
477 b = (char *) xrealloc (b, alloc);
490 if (len > 0 && b[len - 1] != ':')
498 if (len > 0 && b[len - 1] == ':')
517 if (ld_so_conf == NULL)
520 return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force);
529 cat >>e${EMULATION_NAME}.c <<EOF
531 /* See if an input file matches a DT_NEEDED entry by name. */
534 gld${EMULATION_NAME}_check_needed (s)
535 lang_input_statement_type *s;
540 if (s->filename != NULL)
544 if (strcmp (s->filename, global_needed->name) == 0)
550 if (s->search_dirs_flag)
552 f = strrchr (s->filename, '/');
554 && strcmp (f + 1, global_needed->name) == 0)
562 if (s->the_bfd != NULL)
566 soname = bfd_elf_get_dt_soname (s->the_bfd);
568 && strcmp (soname, global_needed->name) == 0)
578 if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
579 cat >>e${EMULATION_NAME}.c <<EOF
581 /* This is called after all the input files have been opened. */
584 gld${EMULATION_NAME}_after_open ()
586 struct bfd_link_needed_list *needed, *l;
588 /* We only need to worry about this when doing a final link. */
589 if (link_info.relocateable || link_info.shared)
592 /* Get the list of files which appear in DT_NEEDED entries in
593 dynamic objects included in the link (often there will be none).
594 For each such file, we want to track down the corresponding
595 library, and include the symbol table in the link. This is what
596 the runtime dynamic linker will do. Tracking the files down here
597 permits one dynamic object to include another without requiring
598 special action by the person doing the link. Note that the
599 needed list can actually grow while we are stepping through this
601 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
602 for (l = needed; l != NULL; l = l->next)
604 struct bfd_link_needed_list *ll;
607 /* If we've already seen this file, skip it. */
608 for (ll = needed; ll != l; ll = ll->next)
609 if (strcmp (ll->name, l->name) == 0)
614 /* See if this file was included in the link explicitly. */
616 global_found = false;
617 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
621 if (trace_file_tries)
622 info_msg (_("%s needed by %B\n"), l->name, l->by);
624 /* We need to find this file and include the symbol table. We
625 want to search for the file in the same way that the dynamic
626 linker will search. That means that we want to use
627 rpath_link, rpath, then the environment variable
628 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
629 entries (native only), then the linker script LIB_SEARCH_DIRS.
630 We do not search using the -L arguments.
632 We search twice. The first time, we skip objects which may
633 introduce version mismatches. The second time, we force
634 their use. See gld${EMULATION_NAME}_vercheck comment. */
635 for (force = 0; force < 2; force++)
638 search_dirs_type *search;
640 if [ "x${host}" = "x${target}" ] ; then
641 case " ${EMULATION_LIBPATH} " in
642 *" ${EMULATION_NAME} "*)
643 cat >>e${EMULATION_NAME}.c <<EOF
644 const char *lib_path;
645 struct bfd_link_needed_list *rp;
651 cat >>e${EMULATION_NAME}.c <<EOF
653 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
657 if [ "x${host}" = "x${target}" ] ; then
658 case " ${EMULATION_LIBPATH} " in
659 *" ${EMULATION_NAME} "*)
660 cat >>e${EMULATION_NAME}.c <<EOF
661 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
664 if (command_line.rpath_link == NULL
665 && command_line.rpath == NULL)
667 lib_path = (const char *) getenv ("LD_RUN_PATH");
668 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name,
672 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
673 if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force))
677 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
678 for (; !found && rp != NULL; rp = rp->next)
680 found = (rp->by == l->by
681 && gld${EMULATION_NAME}_search_needed (rp->name,
692 cat >>e${EMULATION_NAME}.c <<EOF
693 len = strlen (l->name);
694 for (search = search_head; search != NULL; search = search->next)
700 filename = (char *) xmalloc (strlen (search->name) + len + 2);
701 sprintf (filename, "%s/%s", search->name, l->name);
702 if (gld${EMULATION_NAME}_try_needed (filename, force))
709 if [ "x${host}" = "x${target}" ] ; then
710 case " ${EMULATION_LIBPATH} " in
711 *" ${EMULATION_NAME} "*)
714 cat >>e${EMULATION_NAME}.c <<EOF
715 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
724 cat >>e${EMULATION_NAME}.c <<EOF
730 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
738 cat >>e${EMULATION_NAME}.c <<EOF
740 /* Look through an expression for an assignment statement. */
743 gld${EMULATION_NAME}_find_exp_assignment (exp)
746 struct bfd_link_hash_entry *h;
748 switch (exp->type.node_class)
751 h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
752 false, false, false);
756 /* We call record_link_assignment even if the symbol is defined.
757 This is because if it is defined by a dynamic object, we
758 actually want to use the value defined by the linker script,
759 not the value from the dynamic object (because we are setting
760 symbols like etext). If the symbol is defined by a regular
761 object, then, as it happens, calling record_link_assignment
766 if (strcmp (exp->assign.dst, ".") != 0)
768 if (! (bfd_elf${ELFSIZE}_record_link_assignment
769 (output_bfd, &link_info, exp->assign.dst,
770 exp->type.node_class == etree_provide ? true : false)))
771 einfo ("%P%F: failed to record assignment to %s: %E\n",
774 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
778 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
779 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
783 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
784 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
785 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
789 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
798 /* This is called by the before_allocation routine via
799 lang_for_each_statement. It locates any assignment statements, and
800 tells the ELF backend about them, in case they are assignments to
801 symbols which are referred to by dynamic objects. */
804 gld${EMULATION_NAME}_find_statement_assignment (s)
805 lang_statement_union_type *s;
807 if (s->header.type == lang_assignment_statement_enum)
808 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
813 if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
814 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
815 ELF_INTERPRETER_SET_DEFAULT="
818 sinterp->contents = ${ELF_INTERPRETER_NAME};
819 sinterp->_raw_size = strlen (sinterp->contents) + 1;
824 ELF_INTERPRETER_SET_DEFAULT=
826 cat >>e${EMULATION_NAME}.c <<EOF
828 /* This is called after the sections have been attached to output
829 sections, but before any sizes or addresses have been set. */
832 gld${EMULATION_NAME}_before_allocation ()
837 /* If we are going to make any variable assignments, we need to let
838 the ELF backend know about them in case the variables are
839 referred to by dynamic objects. */
840 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
842 /* Let the ELF backend work out the sizes of any sections required
843 by dynamic linking. */
844 rpath = command_line.rpath;
846 rpath = (const char *) getenv ("LD_RUN_PATH");
847 if (! (bfd_elf${ELFSIZE}_size_dynamic_sections
848 (output_bfd, command_line.soname, rpath,
849 command_line.filter_shlib,
850 (const char * const *) command_line.auxiliary_filters,
851 &link_info, &sinterp, lang_elf_version_info)))
852 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
853 ${ELF_INTERPRETER_SET_DEFAULT}
854 /* Let the user override the dynamic linker we are using. */
855 if (command_line.interpreter != NULL
858 sinterp->contents = (bfd_byte *) command_line.interpreter;
859 sinterp->_raw_size = strlen (command_line.interpreter) + 1;
862 /* Look for any sections named .gnu.warning. As a GNU extensions,
863 we treat such sections as containing warning messages. We print
864 out the warning message, and then zero out the section size so
865 that it does not get copied into the output file. */
868 LANG_FOR_EACH_INPUT_STATEMENT (is)
875 if (is->just_syms_flag)
878 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
882 sz = bfd_section_size (is->the_bfd, s);
883 msg = xmalloc ((size_t) sz + 1);
884 if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz))
885 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
888 ret = link_info.callbacks->warning (&link_info, msg,
890 is->the_bfd, (asection *) NULL,
895 /* Clobber the section size, so that we don't waste copying the
896 warning into the output file. */
905 if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
906 cat >>e${EMULATION_NAME}.c <<EOF
908 /* Try to open a dynamic archive. This is where we know that ELF
909 dynamic libraries have an extension of .so (or .sl on oddball systems
913 gld${EMULATION_NAME}_open_dynamic_archive (arch, search, entry)
915 search_dirs_type *search;
916 lang_input_statement_type *entry;
918 const char *filename;
921 if (! entry->is_archive)
924 filename = entry->filename;
926 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
927 is defined, but it does not seem worth the headache to optimize
928 away those two bytes of space. */
929 string = (char *) xmalloc (strlen (search->name)
932 #ifdef EXTRA_SHLIB_EXTENSION
933 + strlen (EXTRA_SHLIB_EXTENSION)
937 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
939 #ifdef EXTRA_SHLIB_EXTENSION
940 /* Try the .so extension first. If that fails build a new filename
941 using EXTRA_SHLIB_EXTENSION. */
942 if (! ldfile_try_open_bfd (string, entry))
943 sprintf (string, "%s/lib%s%s%s", search->name,
944 filename, arch, EXTRA_SHLIB_EXTENSION);
947 if (! ldfile_try_open_bfd (string, entry))
953 entry->filename = string;
955 /* We have found a dynamic object to include in the link. The ELF
956 backend linker will create a DT_NEEDED entry in the .dynamic
957 section naming this file. If this file includes a DT_SONAME
958 entry, it will be used. Otherwise, the ELF linker will just use
959 the name of the file. For an archive found by searching, like
960 this one, the DT_NEEDED entry should consist of just the name of
961 the file, without the path information used to find it. Note
962 that we only need to do this if we have a dynamic object; an
963 archive will never be referenced by a DT_NEEDED entry.
965 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
966 very pretty. I haven't been able to think of anything that is
968 if (bfd_check_format (entry->the_bfd, bfd_object)
969 && (entry->the_bfd->flags & DYNAMIC) != 0)
971 ASSERT (entry->is_archive && entry->search_dirs_flag);
973 /* Rather than duplicating the logic above. Just use the
974 filename we recorded earlier. */
976 filename = lbasename (entry->filename);
977 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
986 if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
987 cat >>e${EMULATION_NAME}.c <<EOF
989 /* A variant of lang_output_section_find. Used by place_orphan. */
991 static lang_output_section_statement_type *
994 lang_statement_union_type *u;
995 lang_output_section_statement_type *lookup;
997 for (u = lang_output_section_statement.head;
998 u != (lang_statement_union_type *) NULL;
1001 lookup = &u->output_section_statement;
1002 if (strncmp (".rel", lookup->name, 4) == 0
1003 && lookup->bfd_section != NULL
1004 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1009 return (lang_output_section_statement_type *) NULL;
1012 /* Find the last output section before given output statement.
1013 Used by place_orphan. */
1016 output_prev_sec_find (os)
1017 lang_output_section_statement_type *os;
1019 asection *s = (asection *) NULL;
1020 lang_statement_union_type *u;
1021 lang_output_section_statement_type *lookup;
1023 for (u = lang_output_section_statement.head;
1024 u != (lang_statement_union_type *) NULL;
1027 lookup = &u->output_section_statement;
1031 if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL)
1032 s = lookup->bfd_section;
1038 /* Place an orphan section. We use this to put random SHF_ALLOC
1039 sections in the right segment. */
1041 struct orphan_save {
1042 lang_output_section_statement_type *os;
1044 lang_statement_union_type **stmt;
1048 gld${EMULATION_NAME}_place_orphan (file, s)
1049 lang_input_statement_type *file;
1052 static struct orphan_save hold_text;
1053 static struct orphan_save hold_rodata;
1054 static struct orphan_save hold_data;
1055 static struct orphan_save hold_bss;
1056 static struct orphan_save hold_rel;
1057 static struct orphan_save hold_interp;
1058 static struct orphan_save hold_sdata;
1059 static int count = 1;
1060 struct orphan_save *place;
1061 lang_statement_list_type *old;
1062 lang_statement_list_type add;
1063 etree_type *address;
1064 const char *secname;
1065 const char *outsecname;
1066 const char *ps = NULL;
1067 lang_output_section_statement_type *os;
1069 secname = bfd_get_section_name (s->owner, s);
1071 if (! config.unique_orphan_sections && ! unique_section_p (secname))
1073 /* Look through the script to see where to place this section. */
1074 os = lang_output_section_find (secname);
1077 && (os->bfd_section == NULL
1078 || ((s->flags ^ os->bfd_section->flags)
1079 & (SEC_LOAD | SEC_ALLOC)) == 0))
1081 /* We already have an output section statement with this
1082 name, and its bfd section, if any, has compatible flags. */
1083 lang_add_section (&os->children, s, os, file);
1088 if (hold_text.os == NULL)
1089 hold_text.os = lang_output_section_find (".text");
1091 /* If this is a final link, then always put .gnu.warning.SYMBOL
1092 sections into the .text section to get them out of the way. */
1093 if (! link_info.shared
1094 && ! link_info.relocateable
1095 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
1096 && hold_text.os != NULL)
1098 lang_add_section (&hold_text.os->children, s, hold_text.os, file);
1102 /* Decide which segment the section should go in based on the
1103 section name and section flags. We put loadable .note sections
1104 right after the .interp section, so that the PT_NOTE segment is
1105 stored right after the program headers where the OS can read it
1106 in the first page. */
1107 #define HAVE_SECTION(hold, name) \
1108 (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL)
1110 if (s->flags & SEC_EXCLUDE)
1112 if (s->output_section == NULL)
1113 s->output_section = bfd_abs_section_ptr;
1118 if ((s->flags & SEC_ALLOC) == 0)
1120 else if ((s->flags & SEC_LOAD) != 0
1121 && strncmp (secname, ".note", 5) == 0
1122 && HAVE_SECTION (hold_interp, ".interp"))
1123 place = &hold_interp;
1124 else if ((s->flags & SEC_HAS_CONTENTS) == 0
1125 && HAVE_SECTION (hold_bss, ".bss"))
1127 else if ((s->flags & SEC_SMALL_DATA) != 0
1128 && HAVE_SECTION (hold_sdata, ".sdata"))
1129 place = &hold_sdata;
1130 else if ((s->flags & SEC_READONLY) == 0
1131 && HAVE_SECTION (hold_data, ".data"))
1133 else if (strncmp (secname, ".rel", 4) == 0
1134 && (hold_rel.os != NULL
1135 || (hold_rel.os = output_rel_find ()) != NULL))
1137 if (! link_info.relocateable && link_info.combreloc)
1139 if (strncmp (secname, ".rela", 5) == 0)
1140 os = lang_output_section_find (".rela.dyn");
1142 os = lang_output_section_find (".rel.dyn");
1145 && os->bfd_section != NULL
1146 && ((s->flags ^ os->bfd_section->flags)
1147 & (SEC_LOAD | SEC_ALLOC)) == 0)
1149 lang_add_section (&os->children, s, os, file);
1155 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY
1156 && HAVE_SECTION (hold_rodata, ".rodata"))
1157 place = &hold_rodata;
1158 else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY)
1159 && hold_text.os != NULL)
1164 /* Choose a unique name for the section. This will be needed if the
1165 same section name appears in the input file with different
1166 loadable or allocatable characteristics. */
1167 outsecname = secname;
1168 if (bfd_get_section_by_name (output_bfd, outsecname) != NULL)
1170 outsecname = bfd_get_unique_section_name (output_bfd,
1173 if (outsecname == NULL)
1174 einfo ("%F%P: place_orphan failed: %E\n");
1177 /* Start building a list of statements for this section.
1178 First save the current statement pointer. */
1181 /* If we have found an appropriate place for the output section
1182 statements for this orphan, add them to our own private list,
1183 inserting them later into the global statement list. */
1187 lang_list_init (stat_ptr);
1190 if (config.build_constructors)
1192 /* If the name of the section is representable in C, then create
1193 symbols to mark the start and the end of the section. */
1194 for (ps = outsecname; *ps != '\0'; ps++)
1195 if (! ISALNUM (*ps) && *ps != '_')
1200 etree_type *e_align;
1202 symname = (char *) xmalloc (ps - outsecname + sizeof "__start_");
1203 sprintf (symname, "__start_%s", outsecname);
1204 e_align = exp_unop (ALIGN_K,
1205 exp_intop ((bfd_vma) 1 << s->alignment_power));
1206 lang_add_assignment (exp_assop ('=', symname, e_align));
1210 if (link_info.relocateable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0)
1211 address = exp_intop ((bfd_vma) 0);
1215 os = lang_enter_output_section_statement (outsecname, address, 0,
1217 (etree_type *) NULL,
1218 (etree_type *) NULL,
1219 (etree_type *) NULL);
1221 lang_add_section (&os->children, s, os, file);
1223 lang_leave_output_section_statement
1224 ((bfd_vma) 0, "*default*",
1225 (struct lang_output_section_phdr_list *) NULL, "*default*");
1227 if (config.build_constructors && *ps == '\0')
1231 /* lang_leave_ouput_section_statement resets stat_ptr. Put
1232 stat_ptr back where we want it. */
1236 symname = (char *) xmalloc (ps - outsecname + sizeof "__stop_");
1237 sprintf (symname, "__stop_%s", outsecname);
1238 lang_add_assignment (exp_assop ('=', symname,
1239 exp_nameop (NAME, ".")));
1242 /* Restore the global list pointer. */
1247 asection *snew, **pps;
1249 snew = os->bfd_section;
1251 /* Shuffle the bfd section list to make the output file look
1252 neater. This is really only cosmetic. */
1253 if (place->section == NULL)
1255 asection *bfd_section = place->os->bfd_section;
1257 /* If the output statement hasn't been used to place
1258 any input sections (and thus doesn't have an output
1259 bfd_section), look for the closest prior output statement
1260 having an output section. */
1261 if (bfd_section == NULL)
1262 bfd_section = output_prev_sec_find (place->os);
1264 if (bfd_section != NULL && bfd_section != snew)
1265 place->section = &bfd_section->next;
1268 if (place->section != NULL)
1270 /* Unlink the section. */
1271 for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next)
1273 bfd_section_list_remove (output_bfd, pps);
1275 /* Now tack it on to the "place->os" section list. */
1276 bfd_section_list_insert (output_bfd, place->section, snew);
1279 /* Save the end of this list. Further ophans of this type will
1280 follow the one we've just added. */
1281 place->section = &snew->next;
1283 /* The following is non-cosmetic. We try to put the output
1284 statements in some sort of reasonable order here, because
1285 they determine the final load addresses of the orphan
1286 sections. In addition, placing output statements in the
1287 wrong order may require extra segments. For instance,
1288 given a typical situation of all read-only sections placed
1289 in one segment and following that a segment containing all
1290 the read-write sections, we wouldn't want to place an orphan
1291 read/write section before or amongst the read-only ones. */
1292 if (add.head != NULL)
1294 if (place->stmt == NULL)
1296 /* Put the new statement list right at the head. */
1297 *add.tail = place->os->header.next;
1298 place->os->header.next = add.head;
1302 /* Put it after the last orphan statement we added. */
1303 *add.tail = *place->stmt;
1304 *place->stmt = add.head;
1307 /* Fix the global list pointer if we happened to tack our
1308 new list at the tail. */
1309 if (*old->tail == add.head)
1310 old->tail = add.tail;
1312 /* Save the end of this list. */
1313 place->stmt = add.tail;
1322 if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
1323 cat >>e${EMULATION_NAME}.c <<EOF
1326 gld${EMULATION_NAME}_finish ()
1328 if (bfd_elf${ELFSIZE}_discard_info (output_bfd, &link_info))
1330 lang_reset_memory_regions ();
1332 /* Resize the sections. */
1333 lang_size_sections (stat_ptr->head, abs_output_section,
1334 &stat_ptr->head, 0, (bfd_vma) 0, NULL);
1336 /* Redo special stuff. */
1337 ldemul_after_allocation ();
1339 /* Do the assignments again. */
1340 lang_do_assignments (stat_ptr->head, abs_output_section,
1341 (fill_type *) 0, (bfd_vma) 0);
1347 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1348 cat >>e${EMULATION_NAME}.c <<EOF
1351 gld${EMULATION_NAME}_get_script (isfile)
1355 if test -n "$COMPILE_IN"
1357 # Scripts compiled in.
1359 # sed commands to quote an ld script as a C string.
1360 sc="-f stringify.sed"
1362 cat >>e${EMULATION_NAME}.c <<EOF
1366 if (link_info.relocateable == true && config.build_constructors == true)
1369 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1370 echo ' ; else if (link_info.relocateable == true) return' >> e${EMULATION_NAME}.c
1371 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1372 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1373 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1374 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
1375 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1376 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1378 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1379 echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1380 sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
1381 echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1382 sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
1384 echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1385 sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
1386 echo ' ; else return' >> e${EMULATION_NAME}.c
1387 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1388 echo '; }' >> e${EMULATION_NAME}.c
1391 # Scripts read from the filesystem.
1393 cat >>e${EMULATION_NAME}.c <<EOF
1397 if (link_info.relocateable == true && config.build_constructors == true)
1398 return "ldscripts/${EMULATION_NAME}.xu";
1399 else if (link_info.relocateable == true)
1400 return "ldscripts/${EMULATION_NAME}.xr";
1401 else if (!config.text_read_only)
1402 return "ldscripts/${EMULATION_NAME}.xbn";
1403 else if (!config.magic_demand_paged)
1404 return "ldscripts/${EMULATION_NAME}.xn";
1405 else if (link_info.shared)
1406 return "ldscripts/${EMULATION_NAME}.xs";
1408 return "ldscripts/${EMULATION_NAME}.x";
1415 if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1417 if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1419 if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1420 cat >>e${EMULATION_NAME}.c <<EOF
1421 $PARSE_AND_LIST_PROLOGUE
1425 cat >>e${EMULATION_NAME}.c <<EOF
1429 #define OPTION_DISABLE_NEW_DTAGS (400)
1430 #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
1431 #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
1432 #define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
1434 static struct option longopts[] =
1438 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1439 cat >>e${EMULATION_NAME}.c <<EOF
1440 /* getopt allows abbreviations, so we do this to stop it from
1441 treating -d/-e as abbreviations for these options. */
1442 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1443 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1444 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1445 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1446 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
1447 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1448 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1452 if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1453 cat >>e${EMULATION_NAME}.c <<EOF
1454 $PARSE_AND_LIST_LONGOPTS
1458 cat >>e${EMULATION_NAME}.c <<EOF
1459 {NULL, no_argument, NULL, 0}
1463 static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
1466 gld${EMULATION_NAME}_parse_args (argc, argv)
1472 static int prevoptind = -1;
1473 int prevopterr = opterr;
1476 if (prevoptind != optind)
1480 prevoptind = optind;
1482 optc = getopt_long_only (argc, argv,
1483 "-${PARSE_AND_LIST_SHORTOPTS}z:", longopts,
1485 opterr = prevopterr;
1492 optind = prevoptind;
1497 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1498 cat >>e${EMULATION_NAME}.c <<EOF
1499 case OPTION_DISABLE_NEW_DTAGS:
1500 link_info.new_dtags = false;
1503 case OPTION_ENABLE_NEW_DTAGS:
1504 link_info.new_dtags = true;
1507 case OPTION_EH_FRAME_HDR:
1508 link_info.eh_frame_hdr = true;
1512 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1513 /* Groups must be self-contained. */
1514 link_info.no_undefined = true;
1518 if (strcmp (optarg, "initfirst") == 0)
1519 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1520 else if (strcmp (optarg, "interpose") == 0)
1521 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1522 else if (strcmp (optarg, "loadfltr") == 0)
1523 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1524 else if (strcmp (optarg, "nodefaultlib") == 0)
1525 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1526 else if (strcmp (optarg, "nodelete") == 0)
1527 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1528 else if (strcmp (optarg, "nodlopen") == 0)
1529 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1530 else if (strcmp (optarg, "nodump") == 0)
1531 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1532 else if (strcmp (optarg, "now") == 0)
1534 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1535 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1537 else if (strcmp (optarg, "origin") == 0)
1539 link_info.flags |= (bfd_vma) DF_ORIGIN;
1540 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1542 else if (strcmp (optarg, "defs") == 0)
1543 link_info.no_undefined = true;
1544 else if (strcmp (optarg, "muldefs") == 0)
1545 link_info.allow_multiple_definition = true;
1546 else if (strcmp (optarg, "combreloc") == 0)
1547 link_info.combreloc = true;
1548 else if (strcmp (optarg, "nocombreloc") == 0)
1549 link_info.combreloc = false;
1550 else if (strcmp (optarg, "nocopyreloc") == 0)
1551 link_info.nocopyreloc = true;
1552 /* What about the other Solaris -z options? FIXME. */
1557 if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1558 cat >>e${EMULATION_NAME}.c <<EOF
1559 $PARSE_AND_LIST_ARGS_CASES
1563 cat >>e${EMULATION_NAME}.c <<EOF
1572 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1573 cat >>e${EMULATION_NAME}.c <<EOF
1575 static void gld${EMULATION_NAME}_list_options PARAMS ((FILE * file));
1578 gld${EMULATION_NAME}_list_options (file)
1583 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1584 cat >>e${EMULATION_NAME}.c <<EOF
1585 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
1586 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1587 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
1588 fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
1589 fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
1590 fprintf (file, _(" -z defs\t\tDisallows undefined symbols\n"));
1591 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1592 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
1593 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
1594 fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n"));
1595 fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
1596 fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
1597 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1598 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
1599 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1600 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
1601 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
1602 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
1603 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
1607 if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1608 cat >>e${EMULATION_NAME}.c <<EOF
1609 $PARSE_AND_LIST_OPTIONS
1613 cat >>e${EMULATION_NAME}.c <<EOF
1617 if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1618 cat >>e${EMULATION_NAME}.c <<EOF
1619 $PARSE_AND_LIST_EPILOGUE
1624 if test x"$LDEMUL_PARSE_ARGS" != xgld"$EMULATION_NAME"_parse_args; then
1625 cat >>e${EMULATION_NAME}.c <<EOF
1626 #define gld${EMULATION_NAME}_parse_args NULL
1629 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1630 cat >>e${EMULATION_NAME}.c <<EOF
1631 #define gld${EMULATION_NAME}_list_options NULL
1636 cat >>e${EMULATION_NAME}.c <<EOF
1638 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1640 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1641 ${LDEMUL_SYSLIB-syslib_default},
1642 ${LDEMUL_HLL-hll_default},
1643 ${LDEMUL_AFTER_PARSE-after_parse_default},
1644 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1645 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1646 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1647 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1648 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1649 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
1650 "${EMULATION_NAME}",
1652 ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish},
1653 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1654 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1655 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1656 ${LDEMUL_SET_SYMBOLS-NULL},
1657 ${LDEMUL_PARSE_ARGS-gld${EMULATION_NAME}_parse_args},
1658 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
1659 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
1660 ${LDEMUL_RECOGNIZED_FILE-NULL},
1661 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
1662 ${LDEMUL_NEW_VERS_PATTERN-NULL}