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 ${EMULATION_NAME}
15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
16 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
17 Written by Steve Chamberlain <sac@cygnus.com>
18 ELF support by Ian Lance Taylor <ian@cygnus.com>
20 This file is part of GLD, the Gnu Linker.
22 This program is free software; you can redistribute it and/or modify
23 it under the terms of the GNU General Public License as published by
24 the Free Software Foundation; either version 2 of the License, or
25 (at your option) any later version.
27 This program is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 GNU General Public License for more details.
32 You should have received a copy of the GNU General Public License
33 along with this program; if not, write to the Free Software
34 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
36 #define TARGET_IS_${EMULATION_NAME}
40 #include "libiberty.h"
41 #include "safe-ctype.h"
54 #include "elf/common.h"
56 /* Declare functions used by various EXTRA_EM_FILEs. */
57 static void gld${EMULATION_NAME}_before_parse (void);
58 static void gld${EMULATION_NAME}_after_open (void);
59 static void gld${EMULATION_NAME}_before_allocation (void);
60 static bfd_boolean gld${EMULATION_NAME}_place_orphan
61 (lang_input_statement_type *file, asection *s);
62 static void gld${EMULATION_NAME}_finish (void);
66 if [ "x${USE_LIBPATH}" = xyes ] ; then
69 cat >>e${EMULATION_NAME}.c <<EOF
78 # Import any needed special functions and/or overrides.
80 if test -n "$EXTRA_EM_FILE" ; then
81 . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
84 # Functions in this file can be overridden by setting the LDEMUL_* shell
85 # variables. If the name of the overriding function is the same as is
86 # defined in this file, then don't output this file's version.
87 # If a different overriding name is given then output the standard function
88 # as presumably it is called from the overriding function.
90 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
91 cat >>e${EMULATION_NAME}.c <<EOF
94 gld${EMULATION_NAME}_before_parse (void)
96 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
97 config.dynamic_link = ${DYNAMIC_LINK-TRUE};
98 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
104 if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then
105 cat >>e${EMULATION_NAME}.c <<EOF
106 /* Handle as_needed DT_NEEDED. */
109 gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
113 /* Tell the ELF linker that we don't want the output file to have a
114 DT_NEEDED entry for this file, unless it is used to resolve
115 references in a regular object. */
116 if (entry->as_needed)
117 class = DYN_AS_NEEDED;
119 /* Tell the ELF linker that we don't want the output file to have a
120 DT_NEEDED entry for any dynamic library in DT_NEEDED tags from
122 if (!entry->add_needed)
123 class |= DYN_NO_ADD_NEEDED;
126 || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0)
129 bfd_elf_set_dyn_lib_class (entry->the_bfd, class);
131 /* Continue on with normal load_symbols processing. */
137 cat >>e${EMULATION_NAME}.c <<EOF
139 /* These variables are required to pass information back and forth
140 between after_open and check_needed and stat_needed and vercheck. */
142 static struct bfd_link_needed_list *global_needed;
143 static struct stat global_stat;
144 static bfd_boolean global_found;
145 static struct bfd_link_needed_list *global_vercheck_needed;
146 static bfd_boolean global_vercheck_failed;
149 /* On Linux, it's possible to have different versions of the same
150 shared library linked against different versions of libc. The
151 dynamic linker somehow tags which libc version to use in
152 /etc/ld.so.cache, and, based on the libc that it sees in the
153 executable, chooses which version of the shared library to use.
155 We try to do a similar check here by checking whether this shared
156 library needs any other shared libraries which may conflict with
157 libraries we have already included in the link. If it does, we
158 skip it, and try to find another shared library farther on down the
161 This is called via lang_for_each_input_file.
162 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
163 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
164 a conflicting version. */
167 gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
170 struct bfd_link_needed_list *l;
172 if (global_vercheck_failed)
174 if (s->the_bfd == NULL
175 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
178 soname = bfd_elf_get_dt_soname (s->the_bfd);
180 soname = lbasename (bfd_get_filename (s->the_bfd));
182 for (l = global_vercheck_needed; l != NULL; l = l->next)
186 if (strcmp (soname, l->name) == 0)
188 /* Probably can't happen, but it's an easy check. */
192 if (strchr (l->name, '/') != NULL)
195 suffix = strstr (l->name, ".so.");
199 suffix += sizeof ".so." - 1;
201 if (strncmp (soname, l->name, suffix - l->name) == 0)
203 /* Here we know that S is a dynamic object FOO.SO.VER1, and
204 the object we are considering needs a dynamic object
205 FOO.SO.VER2, and VER1 and VER2 are different. This
206 appears to be a version mismatch, so we tell the caller
207 to try a different version of this library. */
208 global_vercheck_failed = TRUE;
215 /* See if an input file matches a DT_NEEDED entry by running stat on
219 gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
227 if (s->the_bfd == NULL)
230 if (bfd_stat (s->the_bfd, &st) != 0)
232 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
236 /* Some operating systems, e.g. Windows, do not provide a meaningful
237 st_ino; they always set it to zero. (Windows does provide a
238 meaningful st_dev.) Do not indicate a duplicate library in that
239 case. While there is no guarantee that a system that provides
240 meaningful inode numbers will never set st_ino to zero, this is
241 merely an optimization, so we do not need to worry about false
243 if (st.st_dev == global_stat.st_dev
244 && st.st_ino == global_stat.st_ino
251 /* We issue a warning if it looks like we are including two
252 different versions of the same shared library. For example,
253 there may be a problem if -lc picks up libc.so.6 but some other
254 shared library has a DT_NEEDED entry of libc.so.5. This is a
255 heuristic test, and it will only work if the name looks like
256 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
257 If we really want to issue warnings about mixing version numbers
258 of shared libraries, we need to find a better way. */
260 if (strchr (global_needed->name, '/') != NULL)
262 suffix = strstr (global_needed->name, ".so.");
265 suffix += sizeof ".so." - 1;
267 soname = bfd_elf_get_dt_soname (s->the_bfd);
269 soname = lbasename (s->filename);
271 if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
272 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
273 global_needed->name, global_needed->by, soname);
282 /* This function is called for each possible name for a dynamic object
283 named by a DT_NEEDED entry. The FORCE parameter indicates whether
284 to skip the check for a conflicting version. */
287 gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
291 const char *name = needed->name;
295 abfd = bfd_openr (name, bfd_get_target (output_bfd));
298 if (! bfd_check_format (abfd, bfd_object))
303 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
309 /* For DT_NEEDED, they have to match. */
310 if (abfd->xvec != output_bfd->xvec)
316 /* Check whether this object would include any conflicting library
317 versions. If FORCE is set, then we skip this check; we use this
318 the second time around, if we couldn't find any compatible
319 instance of the shared library. */
323 struct bfd_link_needed_list *needed;
325 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
326 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
330 global_vercheck_needed = needed;
331 global_vercheck_failed = FALSE;
332 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
333 if (global_vercheck_failed)
336 /* Return FALSE to force the caller to move on to try
337 another file on the search path. */
341 /* But wait! It gets much worse. On Linux, if a shared
342 library does not use libc at all, we are supposed to skip
343 it the first time around in case we encounter a shared
344 library later on with the same name which does use the
345 version of libc that we want. This is much too horrible
346 to use on any system other than Linux. */
351 cat >>e${EMULATION_NAME}.c <<EOF
353 struct bfd_link_needed_list *l;
355 for (l = needed; l != NULL; l = l->next)
356 if (strncmp (l->name, "libc.so", 7) == 0)
368 cat >>e${EMULATION_NAME}.c <<EOF
372 /* We've found a dynamic object matching the DT_NEEDED entry. */
374 /* We have already checked that there is no other input file of the
375 same name. We must now check again that we are not including the
376 same file twice. We need to do this because on many systems
377 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
378 reference libc.so.1. If we have already included libc.so, we
379 don't want to include libc.so.1 if they are the same file, and we
380 can only check that using stat. */
382 if (bfd_stat (abfd, &global_stat) != 0)
383 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
385 /* First strip off everything before the last '/'. */
386 soname = lbasename (abfd->filename);
388 if (trace_file_tries)
389 info_msg (_("found %s at %s\n"), soname, name);
391 global_found = FALSE;
392 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
395 /* Return TRUE to indicate that we found the file, even though
396 we aren't going to do anything with it. */
400 /* Specify the soname to use. */
401 bfd_elf_set_dt_needed_name (abfd, soname);
403 /* Tell the ELF linker that we don't want the output file to have a
404 DT_NEEDED entry for this file, unless it is used to resolve
405 references in a regular object. */
406 class = DYN_DT_NEEDED;
408 /* Tell the ELF linker that we don't want the output file to have a
409 DT_NEEDED entry for this file at all if the entry is from a file
410 with DYN_NO_ADD_NEEDED. */
411 if (needed->by != NULL
412 && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
413 class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
415 bfd_elf_set_dyn_lib_class (abfd, class);
417 /* Add this file into the symbol table. */
418 if (! bfd_link_add_symbols (abfd, &link_info))
419 einfo ("%F%B: could not read symbols: %E\n", abfd);
425 /* Search for a needed file in a path. */
428 gld${EMULATION_NAME}_search_needed (const char *path,
429 struct dt_needed *n, int force)
432 const char *name = n->name;
434 struct dt_needed needed;
437 return gld${EMULATION_NAME}_try_needed (n, force);
439 if (path == NULL || *path == '\0')
443 needed.name = n->name;
448 char *filename, *sset;
450 s = strchr (path, ':');
452 s = path + strlen (path);
454 filename = (char *) xmalloc (s - path + len + 2);
459 memcpy (filename, path, s - path);
460 filename[s - path] = '/';
461 sset = filename + (s - path) + 1;
465 needed.name = filename;
466 if (gld${EMULATION_NAME}_try_needed (&needed, force))
480 if [ "x${USE_LIBPATH}" = xyes ] ; then
481 cat >>e${EMULATION_NAME}.c <<EOF
483 /* Add the sysroot to every entry in a colon-separated path. */
486 gld${EMULATION_NAME}_add_sysroot (const char *path)
495 if (path[i++] == ':')
501 len = len + (colons + 1) * strlen (ld_sysroot);
502 ret = xmalloc (len + 1);
503 strcpy (ret, ld_sysroot);
504 p = ret + strlen (ret);
510 strcpy (p, ld_sysroot);
523 cat >>e${EMULATION_NAME}.c <<EOF
524 /* For a native linker, check the file /etc/ld.so.conf for directories
525 in which we may find shared libraries. /etc/ld.so.conf is really
526 only meaningful on Linux. */
528 struct gld${EMULATION_NAME}_ld_so_conf
535 gld${EMULATION_NAME}_parse_ld_so_conf
536 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
539 gld${EMULATION_NAME}_parse_ld_so_conf_include
540 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
548 if (pattern[0] != '/')
550 char *p = strrchr (filename, '/');
551 size_t patlen = strlen (pattern) + 1;
553 newp = xmalloc (p - filename + 1 + patlen);
554 memcpy (newp, filename, p - filename + 1);
555 memcpy (newp + (p - filename + 1), pattern, patlen);
560 if (glob (pattern, 0, NULL, &gl) == 0)
564 for (i = 0; i < gl.gl_pathc; ++i)
565 gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
569 /* If we do not have glob, treat the pattern as a literal filename. */
570 gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
578 gld${EMULATION_NAME}_parse_ld_so_conf
579 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
581 FILE *f = fopen (filename, FOPEN_RT);
589 line = xmalloc (linelen);
594 /* Normally this would use getline(3), but we need to be portable. */
595 while ((q = fgets (p, linelen - (p - line), f)) != NULL
596 && strlen (q) == linelen - (p - line) - 1
597 && line[linelen - 2] != '\n')
599 line = xrealloc (line, 2 * linelen);
600 p = line + linelen - 1;
604 if (q == NULL && p == line)
607 p = strchr (line, '\n');
611 /* Because the file format does not know any form of quoting we
612 can search forward for the next '#' character and if found
613 make it terminating the line. */
614 p = strchr (line, '#');
618 /* Remove leading whitespace. NUL is no whitespace character. */
620 while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
623 /* If the line is blank it is ignored. */
627 if (!strncmp (p, "include", 7) && (p[7] == ' ' || p[7] == '\t'))
633 while (*p == ' ' || *p == '\t')
641 while (*p != ' ' && *p != '\t' && *p)
647 gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
655 while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
656 && *p != '\r' && *p != '\v')
659 while (p != dir && p[-1] == '/')
661 if (info->path == NULL)
663 info->alloc = p - dir + 1 + 256;
664 info->path = xmalloc (info->alloc);
669 if (info->len + 1 + (p - dir) >= info->alloc)
671 info->alloc += p - dir + 256;
672 info->path = xrealloc (info->path, info->alloc);
674 info->path[info->len++] = ':';
676 memcpy (info->path + info->len, dir, p - dir);
677 info->len += p - dir;
678 info->path[info->len] = '\0';
687 gld${EMULATION_NAME}_check_ld_so_conf (const char *name, int force)
689 static bfd_boolean initialized;
690 static char *ld_so_conf;
691 struct dt_needed needed;
696 struct gld${EMULATION_NAME}_ld_so_conf info;
698 tmppath = concat (ld_sysroot, "/etc/ld.so.conf", NULL);
700 info.len = info.alloc = 0;
701 gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
705 char *d = gld${EMULATION_NAME}_add_sysroot (info.path);
712 if (ld_so_conf == NULL)
718 return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
726 cat >>e${EMULATION_NAME}.c <<EOF
728 /* See if an input file matches a DT_NEEDED entry by name. */
731 gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
736 if (s->filename != NULL)
740 if (strcmp (s->filename, global_needed->name) == 0)
746 if (s->search_dirs_flag)
748 f = strrchr (s->filename, '/');
750 && strcmp (f + 1, global_needed->name) == 0)
758 if (s->the_bfd != NULL)
762 soname = bfd_elf_get_dt_soname (s->the_bfd);
764 && strcmp (soname, global_needed->name) == 0)
774 if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
775 cat >>e${EMULATION_NAME}.c <<EOF
777 /* This is called after all the input files have been opened. */
780 gld${EMULATION_NAME}_after_open (void)
782 struct bfd_link_needed_list *needed, *l;
784 /* We only need to worry about this when doing a final link. */
785 if (link_info.relocatable || !link_info.executable)
788 /* Get the list of files which appear in DT_NEEDED entries in
789 dynamic objects included in the link (often there will be none).
790 For each such file, we want to track down the corresponding
791 library, and include the symbol table in the link. This is what
792 the runtime dynamic linker will do. Tracking the files down here
793 permits one dynamic object to include another without requiring
794 special action by the person doing the link. Note that the
795 needed list can actually grow while we are stepping through this
797 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
798 for (l = needed; l != NULL; l = l->next)
800 struct bfd_link_needed_list *ll;
801 struct dt_needed n, nn;
804 /* If the lib that needs this one was --as-needed and wasn't
805 found to be needed, then this lib isn't needed either. */
807 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0)
810 /* If we've already seen this file, skip it. */
811 for (ll = needed; ll != l; ll = ll->next)
813 || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
814 && strcmp (ll->name, l->name) == 0)
819 /* See if this file was included in the link explicitly. */
821 global_found = FALSE;
822 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
829 if (trace_file_tries)
830 info_msg (_("%s needed by %B\n"), l->name, l->by);
832 /* We need to find this file and include the symbol table. We
833 want to search for the file in the same way that the dynamic
834 linker will search. That means that we want to use
835 rpath_link, rpath, then the environment variable
836 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
837 entries (native only), then the linker script LIB_SEARCH_DIRS.
838 We do not search using the -L arguments.
840 We search twice. The first time, we skip objects which may
841 introduce version mismatches. The second time, we force
842 their use. See gld${EMULATION_NAME}_vercheck comment. */
843 for (force = 0; force < 2; force++)
846 search_dirs_type *search;
848 if [ "x${NATIVE}" = xyes ] ; then
849 cat >>e${EMULATION_NAME}.c <<EOF
850 const char *lib_path;
853 if [ "x${USE_LIBPATH}" = xyes ] ; then
854 cat >>e${EMULATION_NAME}.c <<EOF
855 struct bfd_link_needed_list *rp;
859 cat >>e${EMULATION_NAME}.c <<EOF
861 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
865 if [ "x${USE_LIBPATH}" = xyes ] ; then
866 cat >>e${EMULATION_NAME}.c <<EOF
867 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
872 if [ "x${NATIVE}" = xyes ] ; then
873 cat >>e${EMULATION_NAME}.c <<EOF
874 if (command_line.rpath_link == NULL
875 && command_line.rpath == NULL)
877 lib_path = (const char *) getenv ("LD_RUN_PATH");
878 if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
882 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
883 if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force))
887 if [ "x${USE_LIBPATH}" = xyes ] ; then
888 cat >>e${EMULATION_NAME}.c <<EOF
890 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
891 for (; !found && rp != NULL; rp = rp->next)
893 char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name);
894 found = (rp->by == l->by
895 && gld${EMULATION_NAME}_search_needed (tmpname,
905 cat >>e${EMULATION_NAME}.c <<EOF
906 len = strlen (l->name);
907 for (search = search_head; search != NULL; search = search->next)
913 filename = (char *) xmalloc (strlen (search->name) + len + 2);
914 sprintf (filename, "%s/%s", search->name, l->name);
916 if (gld${EMULATION_NAME}_try_needed (&nn, force))
923 if [ "x${USE_LIBPATH}" = xyes ] ; then
926 cat >>e${EMULATION_NAME}.c <<EOF
927 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
934 cat >>e${EMULATION_NAME}.c <<EOF
940 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
948 cat >>e${EMULATION_NAME}.c <<EOF
950 /* Look through an expression for an assignment statement. */
953 gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
955 bfd_boolean provide = FALSE;
957 switch (exp->type.node_class)
963 /* We call record_link_assignment even if the symbol is defined.
964 This is because if it is defined by a dynamic object, we
965 actually want to use the value defined by the linker script,
966 not the value from the dynamic object (because we are setting
967 symbols like etext). If the symbol is defined by a regular
968 object, then, as it happens, calling record_link_assignment
970 if (strcmp (exp->assign.dst, ".") != 0)
972 if (!bfd_elf_record_link_assignment (output_bfd, &link_info,
973 exp->assign.dst, provide))
974 einfo ("%P%F: failed to record assignment to %s: %E\n",
977 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
981 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
982 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
986 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
987 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
988 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
992 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1001 /* This is called by the before_allocation routine via
1002 lang_for_each_statement. It locates any assignment statements, and
1003 tells the ELF backend about them, in case they are assignments to
1004 symbols which are referred to by dynamic objects. */
1007 gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
1009 if (s->header.type == lang_assignment_statement_enum)
1010 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1015 if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
1016 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
1017 ELF_INTERPRETER_SET_DEFAULT="
1018 if (sinterp != NULL)
1020 sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
1021 sinterp->size = strlen ((char *) sinterp->contents) + 1;
1026 ELF_INTERPRETER_SET_DEFAULT=
1028 cat >>e${EMULATION_NAME}.c <<EOF
1030 /* This is called after the sections have been attached to output
1031 sections, but before any sizes or addresses have been set. */
1034 gld${EMULATION_NAME}_before_allocation (void)
1039 if (link_info.hash->type == bfd_link_elf_hash_table)
1040 _bfd_elf_tls_setup (output_bfd, &link_info);
1042 /* If we are going to make any variable assignments, we need to let
1043 the ELF backend know about them in case the variables are
1044 referred to by dynamic objects. */
1045 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
1047 /* Let the ELF backend work out the sizes of any sections required
1048 by dynamic linking. */
1049 rpath = command_line.rpath;
1051 rpath = (const char *) getenv ("LD_RUN_PATH");
1052 if (! (bfd_elf_size_dynamic_sections
1053 (output_bfd, command_line.soname, rpath,
1054 command_line.filter_shlib,
1055 (const char * const *) command_line.auxiliary_filters,
1056 &link_info, &sinterp, lang_elf_version_info)))
1057 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
1058 ${ELF_INTERPRETER_SET_DEFAULT}
1059 /* Let the user override the dynamic linker we are using. */
1060 if (command_line.interpreter != NULL
1063 sinterp->contents = (bfd_byte *) command_line.interpreter;
1064 sinterp->size = strlen (command_line.interpreter) + 1;
1067 /* Look for any sections named .gnu.warning. As a GNU extensions,
1068 we treat such sections as containing warning messages. We print
1069 out the warning message, and then zero out the section size so
1070 that it does not get copied into the output file. */
1073 LANG_FOR_EACH_INPUT_STATEMENT (is)
1077 bfd_size_type prefix_len;
1080 const char * gnu_warning_prefix = _("warning: ");
1082 if (is->just_syms_flag)
1085 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
1090 prefix_len = strlen (gnu_warning_prefix);
1091 msg = xmalloc ((size_t) (prefix_len + sz + 1));
1092 strcpy (msg, gnu_warning_prefix);
1093 if (! bfd_get_section_contents (is->the_bfd, s, msg + prefix_len,
1095 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
1097 msg[prefix_len + sz] = '\0';
1098 ret = link_info.callbacks->warning (&link_info, msg,
1099 (const char *) NULL,
1100 is->the_bfd, (asection *) NULL,
1105 /* Clobber the section size, so that we don't waste copying the
1106 warning into the output file. */
1109 /* Also set SEC_EXCLUDE, so that symbols defined in the warning
1110 section don't get copied to the output. */
1111 s->flags |= SEC_EXCLUDE;
1119 if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
1120 cat >>e${EMULATION_NAME}.c <<EOF
1122 /* Try to open a dynamic archive. This is where we know that ELF
1123 dynamic libraries have an extension of .so (or .sl on oddball systems
1127 gld${EMULATION_NAME}_open_dynamic_archive
1128 (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
1130 const char *filename;
1133 if (! entry->is_archive)
1136 filename = entry->filename;
1138 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
1139 is defined, but it does not seem worth the headache to optimize
1140 away those two bytes of space. */
1141 string = (char *) xmalloc (strlen (search->name)
1144 #ifdef EXTRA_SHLIB_EXTENSION
1145 + strlen (EXTRA_SHLIB_EXTENSION)
1147 + sizeof "/lib.so");
1149 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
1151 #ifdef EXTRA_SHLIB_EXTENSION
1152 /* Try the .so extension first. If that fails build a new filename
1153 using EXTRA_SHLIB_EXTENSION. */
1154 if (! ldfile_try_open_bfd (string, entry))
1155 sprintf (string, "%s/lib%s%s%s", search->name,
1156 filename, arch, EXTRA_SHLIB_EXTENSION);
1159 if (! ldfile_try_open_bfd (string, entry))
1165 entry->filename = string;
1167 /* We have found a dynamic object to include in the link. The ELF
1168 backend linker will create a DT_NEEDED entry in the .dynamic
1169 section naming this file. If this file includes a DT_SONAME
1170 entry, it will be used. Otherwise, the ELF linker will just use
1171 the name of the file. For an archive found by searching, like
1172 this one, the DT_NEEDED entry should consist of just the name of
1173 the file, without the path information used to find it. Note
1174 that we only need to do this if we have a dynamic object; an
1175 archive will never be referenced by a DT_NEEDED entry.
1177 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
1178 very pretty. I haven't been able to think of anything that is
1180 if (bfd_check_format (entry->the_bfd, bfd_object)
1181 && (entry->the_bfd->flags & DYNAMIC) != 0)
1183 ASSERT (entry->is_archive && entry->search_dirs_flag);
1185 /* Rather than duplicating the logic above. Just use the
1186 filename we recorded earlier. */
1188 filename = lbasename (entry->filename);
1189 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
1198 if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
1199 cat >>e${EMULATION_NAME}.c <<EOF
1201 /* A variant of lang_output_section_find used by place_orphan. */
1203 static lang_output_section_statement_type *
1204 output_rel_find (asection *sec, int isdyn)
1206 lang_output_section_statement_type *lookup;
1207 lang_output_section_statement_type *last = NULL;
1208 lang_output_section_statement_type *last_alloc = NULL;
1209 lang_output_section_statement_type *last_rel = NULL;
1210 lang_output_section_statement_type *last_rel_alloc = NULL;
1211 int rela = sec->name[4] == 'a';
1213 for (lookup = &lang_output_section_statement.head->output_section_statement;
1215 lookup = lookup->next)
1217 if (lookup->constraint != -1
1218 && strncmp (".rel", lookup->name, 4) == 0)
1220 int lookrela = lookup->name[4] == 'a';
1222 /* .rel.dyn must come before all other reloc sections, to suit
1227 /* Don't place after .rel.plt as doing so results in wrong
1229 if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
1232 if (rela == lookrela || last_rel == NULL)
1234 if ((rela == lookrela || last_rel_alloc == NULL)
1235 && lookup->bfd_section != NULL
1236 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1237 last_rel_alloc = lookup;
1241 if (lookup->bfd_section != NULL
1242 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1243 last_alloc = lookup;
1247 return last_rel_alloc;
1258 /* Place an orphan section. We use this to put random SHF_ALLOC
1259 sections in the right segment. */
1262 gld${EMULATION_NAME}_place_orphan (lang_input_statement_type *file, asection *s)
1264 static struct orphan_save hold[] =
1267 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1270 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1273 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1279 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1282 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1285 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
1288 enum orphan_save_index
1298 static int orphan_init_done = 0;
1299 struct orphan_save *place;
1300 const char *secname;
1301 lang_output_section_statement_type *after;
1302 lang_output_section_statement_type *os;
1305 secname = bfd_get_section_name (s->owner, s);
1307 if (! link_info.relocatable
1308 && link_info.combreloc
1309 && (s->flags & SEC_ALLOC)
1310 && strncmp (secname, ".rel", 4) == 0)
1312 if (secname[4] == 'a')
1313 secname = ".rela.dyn";
1315 secname = ".rel.dyn";
1319 if (isdyn || (!config.unique_orphan_sections && !unique_section_p (s)))
1321 /* Look through the script to see where to place this section. */
1322 os = lang_output_section_find (secname);
1325 && (os->bfd_section == NULL
1326 || os->bfd_section->flags == 0
1327 || ((s->flags ^ os->bfd_section->flags)
1328 & (SEC_LOAD | SEC_ALLOC)) == 0))
1330 /* We already have an output section statement with this
1331 name, and its bfd section, if any, has compatible flags.
1332 If the section already exists but does not have any flags
1333 set, then it has been created by the linker, probably as a
1334 result of a --section-start command line switch. */
1335 lang_add_section (&os->children, s, os, file);
1340 if (!orphan_init_done)
1342 struct orphan_save *ho;
1343 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1344 if (ho->name != NULL)
1346 ho->os = lang_output_section_find (ho->name);
1347 if (ho->os != NULL && ho->os->flags == 0)
1348 ho->os->flags = ho->flags;
1350 orphan_init_done = 1;
1353 /* If this is a final link, then always put .gnu.warning.SYMBOL
1354 sections into the .text section to get them out of the way. */
1355 if (link_info.executable
1356 && ! link_info.relocatable
1357 && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0
1358 && hold[orphan_text].os != NULL)
1360 lang_add_section (&hold[orphan_text].os->children, s,
1361 hold[orphan_text].os, file);
1365 /* Decide which segment the section should go in based on the
1366 section name and section flags. We put loadable .note sections
1367 right after the .interp section, so that the PT_NOTE segment is
1368 stored right after the program headers where the OS can read it
1369 in the first page. */
1372 if ((s->flags & SEC_ALLOC) == 0)
1374 else if ((s->flags & SEC_LOAD) != 0
1375 && strncmp (secname, ".note", 5) == 0)
1376 place = &hold[orphan_interp];
1377 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1378 place = &hold[orphan_bss];
1379 else if ((s->flags & SEC_SMALL_DATA) != 0)
1380 place = &hold[orphan_sdata];
1381 else if ((s->flags & SEC_READONLY) == 0)
1382 place = &hold[orphan_data];
1383 else if (strncmp (secname, ".rel", 4) == 0
1384 && (s->flags & SEC_LOAD) != 0)
1385 place = &hold[orphan_rel];
1386 else if ((s->flags & SEC_CODE) == 0)
1387 place = &hold[orphan_rodata];
1389 place = &hold[orphan_text];
1394 if (place->os == NULL)
1396 if (place->name != NULL)
1397 place->os = lang_output_section_find (place->name);
1399 place->os = output_rel_find (s, isdyn);
1403 after = lang_output_section_find_by_flags (s, &place->os);
1405 /* *ABS* is always the first output section statement. */
1406 after = &lang_output_section_statement.head->output_section_statement;
1409 /* Choose a unique name for the section. This will be needed if the
1410 same section name appears in the input file with different
1411 loadable or allocatable characteristics. */
1412 if (bfd_get_section_by_name (output_bfd, secname) != NULL)
1414 static int count = 1;
1415 secname = bfd_get_unique_section_name (output_bfd, secname, &count);
1416 if (secname == NULL)
1417 einfo ("%F%P: place_orphan failed: %E\n");
1420 lang_insert_orphan (file, s, secname, after, place, NULL, NULL);
1427 if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
1428 cat >>e${EMULATION_NAME}.c <<EOF
1431 gld${EMULATION_NAME}_finish (void)
1433 if (bfd_elf_discard_info (output_bfd, &link_info))
1435 lang_reset_memory_regions ();
1437 /* Resize the sections. */
1438 lang_size_sections (stat_ptr->head, abs_output_section,
1439 &stat_ptr->head, 0, (bfd_vma) 0, NULL, TRUE);
1441 /* Redo special stuff. */
1442 ldemul_after_allocation ();
1444 /* Do the assignments again. */
1445 lang_do_assignments (stat_ptr->head, abs_output_section,
1446 (fill_type *) 0, (bfd_vma) 0);
1449 if (!link_info.relocatable)
1451 lang_output_section_statement_type *os;
1453 for (os = &lang_output_section_statement.head->output_section_statement;
1459 if (os == abs_output_section || os->constraint == -1)
1461 s = os->bfd_section;
1462 if (s != NULL && s->size == 0 && (s->flags & SEC_KEEP) == 0)
1466 for (p = &output_bfd->sections; *p; p = &(*p)->next)
1469 bfd_section_list_remove (output_bfd, p);
1470 output_bfd->section_count--;
1480 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1481 cat >>e${EMULATION_NAME}.c <<EOF
1484 gld${EMULATION_NAME}_get_script (int *isfile)
1487 if test -n "$COMPILE_IN"
1489 # Scripts compiled in.
1491 # sed commands to quote an ld script as a C string.
1492 sc="-f stringify.sed"
1494 cat >>e${EMULATION_NAME}.c <<EOF
1498 if (link_info.relocatable && config.build_constructors)
1501 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1502 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1503 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1504 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1505 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1506 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
1507 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1508 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1510 if test -n "$GENERATE_PIE_SCRIPT" ; then
1511 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1512 echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c
1513 echo ' && link_info.relro' >> e${EMULATION_NAME}.c
1514 echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
1515 sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
1516 echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1517 sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
1519 echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c
1520 sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
1522 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1523 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1524 echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c
1525 echo ' && link_info.relro' >> e${EMULATION_NAME}.c
1526 echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
1527 sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
1528 echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1529 sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
1531 echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1532 sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
1534 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1535 echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c
1536 echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
1537 sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
1538 echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1539 sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
1541 echo ' ; else return' >> e${EMULATION_NAME}.c
1542 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1543 echo '; }' >> e${EMULATION_NAME}.c
1546 # Scripts read from the filesystem.
1548 cat >>e${EMULATION_NAME}.c <<EOF
1552 if (link_info.relocatable && config.build_constructors)
1553 return "ldscripts/${EMULATION_NAME}.xu";
1554 else if (link_info.relocatable)
1555 return "ldscripts/${EMULATION_NAME}.xr";
1556 else if (!config.text_read_only)
1557 return "ldscripts/${EMULATION_NAME}.xbn";
1559 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
1561 cat >>e${EMULATION_NAME}.c <<EOF
1562 else if (!config.magic_demand_paged)
1563 return "ldscripts/${EMULATION_NAME}.xn";
1566 if test -n "$GENERATE_PIE_SCRIPT" ; then
1567 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1568 cat >>e${EMULATION_NAME}.c <<EOF
1569 else if (link_info.pie && link_info.combreloc
1570 && link_info.relro && (link_info.flags & DT_BIND_NOW))
1571 return "ldscripts/${EMULATION_NAME}.xdw";
1572 else if (link_info.pie && link_info.combreloc)
1573 return "ldscripts/${EMULATION_NAME}.xdc";
1576 cat >>e${EMULATION_NAME}.c <<EOF
1577 else if (link_info.pie)
1578 return "ldscripts/${EMULATION_NAME}.xd";
1581 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1582 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1583 cat >>e${EMULATION_NAME}.c <<EOF
1584 else if (link_info.shared && link_info.combreloc
1585 && link_info.relro && (link_info.flags & DT_BIND_NOW))
1586 return "ldscripts/${EMULATION_NAME}.xsw";
1587 else if (link_info.shared && link_info.combreloc)
1588 return "ldscripts/${EMULATION_NAME}.xsc";
1591 cat >>e${EMULATION_NAME}.c <<EOF
1592 else if (link_info.shared)
1593 return "ldscripts/${EMULATION_NAME}.xs";
1596 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1597 cat >>e${EMULATION_NAME}.c <<EOF
1598 else if (link_info.combreloc && link_info.relro
1599 && (link_info.flags & DT_BIND_NOW))
1600 return "ldscripts/${EMULATION_NAME}.xw";
1601 else if (link_info.combreloc)
1602 return "ldscripts/${EMULATION_NAME}.xc";
1605 cat >>e${EMULATION_NAME}.c <<EOF
1607 return "ldscripts/${EMULATION_NAME}.x";
1614 if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1616 if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1617 cat >>e${EMULATION_NAME}.c <<EOF
1618 $PARSE_AND_LIST_PROLOGUE
1622 cat >>e${EMULATION_NAME}.c <<EOF
1624 #define OPTION_DISABLE_NEW_DTAGS (400)
1625 #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
1626 #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
1627 #define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
1628 #define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
1631 gld${EMULATION_NAME}_add_options
1632 (int ns, char **shortopts, int nl, struct option **longopts,
1633 int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
1635 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
1636 static const struct option xtra_long[] = {
1639 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1640 cat >>e${EMULATION_NAME}.c <<EOF
1641 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1642 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1643 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
1644 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
1645 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1649 if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1650 cat >>e${EMULATION_NAME}.c <<EOF
1651 $PARSE_AND_LIST_LONGOPTS
1655 cat >>e${EMULATION_NAME}.c <<EOF
1656 {NULL, no_argument, NULL, 0}
1659 *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
1660 memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
1661 *longopts = (struct option *)
1662 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
1663 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
1667 gld${EMULATION_NAME}_handle_option (int optc)
1676 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1677 cat >>e${EMULATION_NAME}.c <<EOF
1678 case OPTION_DISABLE_NEW_DTAGS:
1679 link_info.new_dtags = FALSE;
1682 case OPTION_ENABLE_NEW_DTAGS:
1683 link_info.new_dtags = TRUE;
1686 case OPTION_EH_FRAME_HDR:
1687 link_info.eh_frame_hdr = TRUE;
1691 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1692 /* Groups must be self-contained. */
1693 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
1694 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
1697 case OPTION_EXCLUDE_LIBS:
1698 add_excluded_libs (optarg);
1702 if (strcmp (optarg, "initfirst") == 0)
1703 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1704 else if (strcmp (optarg, "interpose") == 0)
1705 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1706 else if (strcmp (optarg, "loadfltr") == 0)
1707 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1708 else if (strcmp (optarg, "nodefaultlib") == 0)
1709 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1710 else if (strcmp (optarg, "nodelete") == 0)
1711 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1712 else if (strcmp (optarg, "nodlopen") == 0)
1713 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1714 else if (strcmp (optarg, "nodump") == 0)
1715 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1716 else if (strcmp (optarg, "now") == 0)
1718 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1719 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1721 else if (strcmp (optarg, "origin") == 0)
1723 link_info.flags |= (bfd_vma) DF_ORIGIN;
1724 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1726 else if (strcmp (optarg, "defs") == 0)
1727 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
1728 else if (strcmp (optarg, "muldefs") == 0)
1729 link_info.allow_multiple_definition = TRUE;
1730 else if (strcmp (optarg, "combreloc") == 0)
1731 link_info.combreloc = TRUE;
1732 else if (strcmp (optarg, "nocombreloc") == 0)
1733 link_info.combreloc = FALSE;
1734 else if (strcmp (optarg, "nocopyreloc") == 0)
1735 link_info.nocopyreloc = TRUE;
1736 else if (strcmp (optarg, "execstack") == 0)
1738 link_info.execstack = TRUE;
1739 link_info.noexecstack = FALSE;
1741 else if (strcmp (optarg, "noexecstack") == 0)
1743 link_info.noexecstack = TRUE;
1744 link_info.execstack = FALSE;
1746 else if (strcmp (optarg, "relro") == 0)
1747 link_info.relro = TRUE;
1748 else if (strcmp (optarg, "norelro") == 0)
1749 link_info.relro = FALSE;
1750 /* What about the other Solaris -z options? FIXME. */
1755 if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1756 cat >>e${EMULATION_NAME}.c <<EOF
1757 $PARSE_AND_LIST_ARGS_CASES
1761 cat >>e${EMULATION_NAME}.c <<EOF
1769 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1770 cat >>e${EMULATION_NAME}.c <<EOF
1773 gld${EMULATION_NAME}_list_options (FILE * file)
1777 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1778 cat >>e${EMULATION_NAME}.c <<EOF
1779 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
1780 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1781 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
1782 fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
1783 fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
1784 fprintf (file, _(" -z defs\t\tReport unresolved symbols in object files.\n"));
1785 fprintf (file, _(" -z execstack\t\tMark executable as requiring executable stack\n"));
1786 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1787 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
1788 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
1789 fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n"));
1790 fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
1791 fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
1792 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1793 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
1794 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1795 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
1796 fprintf (file, _(" -z noexecstack\tMark executable as not requiring executable stack\n"));
1797 fprintf (file, _(" -z norelro\t\tDon't create RELRO program header\n"));
1798 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
1799 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
1800 fprintf (file, _(" -z relro\t\tCreate RELRO program header\n"));
1801 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
1805 if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1806 cat >>e${EMULATION_NAME}.c <<EOF
1807 $PARSE_AND_LIST_OPTIONS
1811 cat >>e${EMULATION_NAME}.c <<EOF
1815 if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1816 cat >>e${EMULATION_NAME}.c <<EOF
1817 $PARSE_AND_LIST_EPILOGUE
1822 cat >>e${EMULATION_NAME}.c <<EOF
1823 #define gld${EMULATION_NAME}_add_options NULL
1824 #define gld${EMULATION_NAME}_handle_option NULL
1826 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1827 cat >>e${EMULATION_NAME}.c <<EOF
1828 #define gld${EMULATION_NAME}_list_options NULL
1833 cat >>e${EMULATION_NAME}.c <<EOF
1835 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1837 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1838 ${LDEMUL_SYSLIB-syslib_default},
1839 ${LDEMUL_HLL-hll_default},
1840 ${LDEMUL_AFTER_PARSE-after_parse_default},
1841 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1842 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
1843 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
1844 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
1845 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
1846 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
1847 "${EMULATION_NAME}",
1849 ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish},
1850 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
1851 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
1852 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
1853 ${LDEMUL_SET_SYMBOLS-NULL},
1854 ${LDEMUL_PARSE_ARGS-NULL},
1855 gld${EMULATION_NAME}_add_options,
1856 gld${EMULATION_NAME}_handle_option,
1857 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
1858 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
1859 ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
1860 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
1861 ${LDEMUL_NEW_VERS_PATTERN-NULL}