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 ${EMULATION_NAME}
15 Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
16 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
17 Written by Steve Chamberlain <sac@cygnus.com>
18 ELF support by Ian Lance Taylor <ian@cygnus.com>
20 This file is part of GLD, the Gnu Linker.
22 This program is free software; you can redistribute it and/or modify
23 it under the terms of the GNU General Public License as published by
24 the Free Software Foundation; either version 2 of the License, or
25 (at your option) any later version.
27 This program is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 GNU General Public License for more details.
32 You should have received a copy of the GNU General Public License
33 along with this program; if not, write to the Free Software
34 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
36 #define TARGET_IS_${EMULATION_NAME}
41 #include "libiberty.h"
42 #include "safe-ctype.h"
55 #include "elf/common.h"
58 /* Declare functions used by various EXTRA_EM_FILEs. */
59 static void gld${EMULATION_NAME}_before_parse (void);
60 static void gld${EMULATION_NAME}_after_open (void);
61 static void gld${EMULATION_NAME}_before_allocation (void);
62 static bfd_boolean gld${EMULATION_NAME}_place_orphan (asection *s);
63 static void gld${EMULATION_NAME}_finish (void);
67 if [ "x${USE_LIBPATH}" = xyes ] ; then
69 *-*-linux-* | *-*-k*bsd*-*)
70 cat >>e${EMULATION_NAME}.c <<EOF
79 # Import any needed special functions and/or overrides.
81 . ${srcdir}/emultempl/elf-generic.em
82 if test -n "$EXTRA_EM_FILE" ; then
83 . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
86 # Functions in this file can be overridden by setting the LDEMUL_* shell
87 # variables. If the name of the overriding function is the same as is
88 # defined in this file, then don't output this file's version.
89 # If a different overriding name is given then output the standard function
90 # as presumably it is called from the overriding function.
92 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
93 cat >>e${EMULATION_NAME}.c <<EOF
96 gld${EMULATION_NAME}_before_parse (void)
98 ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
99 config.dynamic_link = ${DYNAMIC_LINK-TRUE};
100 config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
106 if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then
107 cat >>e${EMULATION_NAME}.c <<EOF
108 /* Handle as_needed DT_NEEDED. */
111 gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry)
115 /* Tell the ELF linker that we don't want the output file to have a
116 DT_NEEDED entry for this file, unless it is used to resolve
117 references in a regular object. */
118 if (entry->as_needed)
119 class = DYN_AS_NEEDED;
121 /* Tell the ELF linker that we don't want the output file to have a
122 DT_NEEDED entry for any dynamic library in DT_NEEDED tags from
124 if (!entry->add_needed)
125 class |= DYN_NO_ADD_NEEDED;
127 if (entry->just_syms_flag
128 && (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) != 0)
129 einfo (_("%P%F: --just-symbols may not be used on DSO: %B\n"),
133 || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0)
136 bfd_elf_set_dyn_lib_class (entry->the_bfd, class);
138 /* Continue on with normal load_symbols processing. */
144 cat >>e${EMULATION_NAME}.c <<EOF
146 /* These variables are required to pass information back and forth
147 between after_open and check_needed and stat_needed and vercheck. */
149 static struct bfd_link_needed_list *global_needed;
150 static struct stat global_stat;
151 static lang_input_statement_type *global_found;
152 static struct bfd_link_needed_list *global_vercheck_needed;
153 static bfd_boolean global_vercheck_failed;
156 /* On Linux, it's possible to have different versions of the same
157 shared library linked against different versions of libc. The
158 dynamic linker somehow tags which libc version to use in
159 /etc/ld.so.cache, and, based on the libc that it sees in the
160 executable, chooses which version of the shared library to use.
162 We try to do a similar check here by checking whether this shared
163 library needs any other shared libraries which may conflict with
164 libraries we have already included in the link. If it does, we
165 skip it, and try to find another shared library farther on down the
168 This is called via lang_for_each_input_file.
169 GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object
170 which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find
171 a conflicting version. */
174 gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s)
177 struct bfd_link_needed_list *l;
179 if (global_vercheck_failed)
181 if (s->the_bfd == NULL
182 || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0)
185 soname = bfd_elf_get_dt_soname (s->the_bfd);
187 soname = lbasename (bfd_get_filename (s->the_bfd));
189 for (l = global_vercheck_needed; l != NULL; l = l->next)
193 if (strcmp (soname, l->name) == 0)
195 /* Probably can't happen, but it's an easy check. */
199 if (strchr (l->name, '/') != NULL)
202 suffix = strstr (l->name, ".so.");
206 suffix += sizeof ".so." - 1;
208 if (strncmp (soname, l->name, suffix - l->name) == 0)
210 /* Here we know that S is a dynamic object FOO.SO.VER1, and
211 the object we are considering needs a dynamic object
212 FOO.SO.VER2, and VER1 and VER2 are different. This
213 appears to be a version mismatch, so we tell the caller
214 to try a different version of this library. */
215 global_vercheck_failed = TRUE;
222 /* See if an input file matches a DT_NEEDED entry by running stat on
226 gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
232 if (global_found != NULL)
234 if (s->the_bfd == NULL)
237 /* If this input file was an as-needed entry, and wasn't found to be
238 needed at the stage it was linked, then don't say we have loaded it. */
239 if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
242 if (bfd_stat (s->the_bfd, &st) != 0)
244 einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd);
248 /* Some operating systems, e.g. Windows, do not provide a meaningful
249 st_ino; they always set it to zero. (Windows does provide a
250 meaningful st_dev.) Do not indicate a duplicate library in that
251 case. While there is no guarantee that a system that provides
252 meaningful inode numbers will never set st_ino to zero, this is
253 merely an optimization, so we do not need to worry about false
255 if (st.st_dev == global_stat.st_dev
256 && st.st_ino == global_stat.st_ino
263 /* We issue a warning if it looks like we are including two
264 different versions of the same shared library. For example,
265 there may be a problem if -lc picks up libc.so.6 but some other
266 shared library has a DT_NEEDED entry of libc.so.5. This is a
267 heuristic test, and it will only work if the name looks like
268 NAME.so.VERSION. FIXME: Depending on file names is error-prone.
269 If we really want to issue warnings about mixing version numbers
270 of shared libraries, we need to find a better way. */
272 if (strchr (global_needed->name, '/') != NULL)
274 suffix = strstr (global_needed->name, ".so.");
277 suffix += sizeof ".so." - 1;
279 soname = bfd_elf_get_dt_soname (s->the_bfd);
281 soname = lbasename (s->filename);
283 if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0)
284 einfo ("%P: warning: %s, needed by %B, may conflict with %s\n",
285 global_needed->name, global_needed->by, soname);
294 /* This function is called for each possible name for a dynamic object
295 named by a DT_NEEDED entry. The FORCE parameter indicates whether
296 to skip the check for a conflicting version. */
299 gld${EMULATION_NAME}_try_needed (struct dt_needed *needed,
303 const char *name = needed->name;
307 abfd = bfd_openr (name, bfd_get_target (output_bfd));
310 if (! bfd_check_format (abfd, bfd_object))
315 if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0)
321 /* For DT_NEEDED, they have to match. */
322 if (abfd->xvec != output_bfd->xvec)
328 /* Check whether this object would include any conflicting library
329 versions. If FORCE is set, then we skip this check; we use this
330 the second time around, if we couldn't find any compatible
331 instance of the shared library. */
335 struct bfd_link_needed_list *needed;
337 if (! bfd_elf_get_bfd_needed_list (abfd, &needed))
338 einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd);
342 global_vercheck_needed = needed;
343 global_vercheck_failed = FALSE;
344 lang_for_each_input_file (gld${EMULATION_NAME}_vercheck);
345 if (global_vercheck_failed)
348 /* Return FALSE to force the caller to move on to try
349 another file on the search path. */
353 /* But wait! It gets much worse. On Linux, if a shared
354 library does not use libc at all, we are supposed to skip
355 it the first time around in case we encounter a shared
356 library later on with the same name which does use the
357 version of libc that we want. This is much too horrible
358 to use on any system other than Linux. */
362 *-*-linux-* | *-*-k*bsd*-*)
363 cat >>e${EMULATION_NAME}.c <<EOF
365 struct bfd_link_needed_list *l;
367 for (l = needed; l != NULL; l = l->next)
368 if (CONST_STRNEQ (l->name, "libc.so"))
380 cat >>e${EMULATION_NAME}.c <<EOF
384 /* We've found a dynamic object matching the DT_NEEDED entry. */
386 /* We have already checked that there is no other input file of the
387 same name. We must now check again that we are not including the
388 same file twice. We need to do this because on many systems
389 libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will
390 reference libc.so.1. If we have already included libc.so, we
391 don't want to include libc.so.1 if they are the same file, and we
392 can only check that using stat. */
394 if (bfd_stat (abfd, &global_stat) != 0)
395 einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd);
397 /* First strip off everything before the last '/'. */
398 soname = lbasename (abfd->filename);
400 if (trace_file_tries)
401 info_msg (_("found %s at %s\n"), soname, name);
404 lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
405 if (global_found != NULL)
407 /* Return TRUE to indicate that we found the file, even though
408 we aren't going to do anything with it. */
412 /* Specify the soname to use. */
413 bfd_elf_set_dt_needed_name (abfd, soname);
415 /* Tell the ELF linker that we don't want the output file to have a
416 DT_NEEDED entry for this file, unless it is used to resolve
417 references in a regular object. */
418 class = DYN_DT_NEEDED;
420 /* Tell the ELF linker that we don't want the output file to have a
421 DT_NEEDED entry for this file at all if the entry is from a file
422 with DYN_NO_ADD_NEEDED. */
423 if (needed->by != NULL
424 && (bfd_elf_get_dyn_lib_class (needed->by) & DYN_NO_ADD_NEEDED) != 0)
425 class |= DYN_NO_NEEDED | DYN_NO_ADD_NEEDED;
427 bfd_elf_set_dyn_lib_class (abfd, class);
429 /* Add this file into the symbol table. */
430 if (! bfd_link_add_symbols (abfd, &link_info))
431 einfo ("%F%B: could not read symbols: %E\n", abfd);
437 /* Search for a needed file in a path. */
440 gld${EMULATION_NAME}_search_needed (const char *path,
441 struct dt_needed *n, int force)
444 const char *name = n->name;
446 struct dt_needed needed;
449 return gld${EMULATION_NAME}_try_needed (n, force);
451 if (path == NULL || *path == '\0')
455 needed.name = n->name;
460 char *filename, *sset;
462 s = strchr (path, ':');
464 s = path + strlen (path);
466 filename = (char *) xmalloc (s - path + len + 2);
471 memcpy (filename, path, s - path);
472 filename[s - path] = '/';
473 sset = filename + (s - path) + 1;
477 needed.name = filename;
478 if (gld${EMULATION_NAME}_try_needed (&needed, force))
492 if [ "x${USE_LIBPATH}" = xyes ] ; then
493 cat >>e${EMULATION_NAME}.c <<EOF
495 /* Add the sysroot to every entry in a colon-separated path. */
498 gld${EMULATION_NAME}_add_sysroot (const char *path)
507 if (path[i++] == ':')
513 len = len + (colons + 1) * strlen (ld_sysroot);
514 ret = xmalloc (len + 1);
515 strcpy (ret, ld_sysroot);
516 p = ret + strlen (ret);
522 strcpy (p, ld_sysroot);
534 *-*-freebsd* | *-*-dragonfly*)
535 cat >>e${EMULATION_NAME}.c <<EOF
536 /* Read the system search path the FreeBSD way rather than the Linux way. */
537 #ifdef HAVE_ELF_HINTS_H
538 #include <elf-hints.h>
540 #include "elf-hints-local.h"
544 gld${EMULATION_NAME}_check_ld_elf_hints (const char *name, int force)
546 static bfd_boolean initialized;
547 static char *ld_elf_hints;
548 struct dt_needed needed;
555 tmppath = concat (ld_sysroot, _PATH_ELF_HINTS, NULL);
556 f = fopen (tmppath, FOPEN_RB);
560 struct elfhints_hdr hdr;
562 if (fread (&hdr, 1, sizeof (hdr), f) == sizeof (hdr)
563 && hdr.magic == ELFHINTS_MAGIC
566 if (fseek (f, hdr.strtab + hdr.dirlist, SEEK_SET) != -1)
570 b = xmalloc (hdr.dirlistlen + 1);
571 if (fread (b, 1, hdr.dirlistlen + 1, f) ==
573 ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b);
584 if (ld_elf_hints == NULL)
589 return gld${EMULATION_NAME}_search_needed (ld_elf_hints, & needed,
596 *-*-linux-* | *-*-k*bsd*-*)
597 cat >>e${EMULATION_NAME}.c <<EOF
598 /* For a native linker, check the file /etc/ld.so.conf for directories
599 in which we may find shared libraries. /etc/ld.so.conf is really
600 only meaningful on Linux. */
602 struct gld${EMULATION_NAME}_ld_so_conf
609 gld${EMULATION_NAME}_parse_ld_so_conf
610 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename);
613 gld${EMULATION_NAME}_parse_ld_so_conf_include
614 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename,
622 if (pattern[0] != '/')
624 char *p = strrchr (filename, '/');
625 size_t patlen = strlen (pattern) + 1;
627 newp = xmalloc (p - filename + 1 + patlen);
628 memcpy (newp, filename, p - filename + 1);
629 memcpy (newp + (p - filename + 1), pattern, patlen);
634 if (glob (pattern, 0, NULL, &gl) == 0)
638 for (i = 0; i < gl.gl_pathc; ++i)
639 gld${EMULATION_NAME}_parse_ld_so_conf (info, gl.gl_pathv[i]);
643 /* If we do not have glob, treat the pattern as a literal filename. */
644 gld${EMULATION_NAME}_parse_ld_so_conf (info, pattern);
652 gld${EMULATION_NAME}_parse_ld_so_conf
653 (struct gld${EMULATION_NAME}_ld_so_conf *info, const char *filename)
655 FILE *f = fopen (filename, FOPEN_RT);
663 line = xmalloc (linelen);
668 /* Normally this would use getline(3), but we need to be portable. */
669 while ((q = fgets (p, linelen - (p - line), f)) != NULL
670 && strlen (q) == linelen - (p - line) - 1
671 && line[linelen - 2] != '\n')
673 line = xrealloc (line, 2 * linelen);
674 p = line + linelen - 1;
678 if (q == NULL && p == line)
681 p = strchr (line, '\n');
685 /* Because the file format does not know any form of quoting we
686 can search forward for the next '#' character and if found
687 make it terminating the line. */
688 p = strchr (line, '#');
692 /* Remove leading whitespace. NUL is no whitespace character. */
694 while (*p == ' ' || *p == '\f' || *p == '\r' || *p == '\t' || *p == '\v')
697 /* If the line is blank it is ignored. */
701 if (CONST_STRNEQ (p, "include") && (p[7] == ' ' || p[7] == '\t'))
707 while (*p == ' ' || *p == '\t')
715 while (*p != ' ' && *p != '\t' && *p)
721 gld${EMULATION_NAME}_parse_ld_so_conf_include (info, filename,
729 while (*p && *p != '=' && *p != ' ' && *p != '\t' && *p != '\f'
730 && *p != '\r' && *p != '\v')
733 while (p != dir && p[-1] == '/')
735 if (info->path == NULL)
737 info->alloc = p - dir + 1 + 256;
738 info->path = xmalloc (info->alloc);
743 if (info->len + 1 + (p - dir) >= info->alloc)
745 info->alloc += p - dir + 256;
746 info->path = xrealloc (info->path, info->alloc);
748 info->path[info->len++] = ':';
750 memcpy (info->path + info->len, dir, p - dir);
751 info->len += p - dir;
752 info->path[info->len] = '\0';
762 gld${EMULATION_NAME}_check_ld_so_conf (const char *name, int force)
764 static bfd_boolean initialized;
765 static char *ld_so_conf;
766 struct dt_needed needed;
771 struct gld${EMULATION_NAME}_ld_so_conf info;
774 info.len = info.alloc = 0;
775 tmppath = concat (ld_sysroot, "${prefix}/etc/ld.so.conf", NULL);
776 if (!gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath))
779 tmppath = concat (ld_sysroot, "/etc/ld.so.conf", NULL);
780 gld${EMULATION_NAME}_parse_ld_so_conf (&info, tmppath);
786 char *d = gld${EMULATION_NAME}_add_sysroot (info.path);
793 if (ld_so_conf == NULL)
799 return gld${EMULATION_NAME}_search_needed (ld_so_conf, &needed, force);
807 cat >>e${EMULATION_NAME}.c <<EOF
809 /* See if an input file matches a DT_NEEDED entry by name. */
812 gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
816 /* Stop looking if we've found a loaded lib. */
817 if (global_found != NULL
818 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
819 & DYN_AS_NEEDED) == 0)
822 if (s->filename == NULL || s->the_bfd == NULL)
825 /* Don't look for a second non-loaded as-needed lib. */
826 if (global_found != NULL
827 && (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
830 if (strcmp (s->filename, global_needed->name) == 0)
836 if (s->search_dirs_flag)
838 const char *f = strrchr (s->filename, '/');
840 && strcmp (f + 1, global_needed->name) == 0)
847 soname = bfd_elf_get_dt_soname (s->the_bfd);
849 && strcmp (soname, global_needed->name) == 0)
858 if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
859 cat >>e${EMULATION_NAME}.c <<EOF
861 /* This is called after all the input files have been opened. */
864 gld${EMULATION_NAME}_after_open (void)
866 struct bfd_link_needed_list *needed, *l;
868 /* We only need to worry about this when doing a final link. */
869 if (link_info.relocatable || !link_info.executable)
872 /* Get the list of files which appear in DT_NEEDED entries in
873 dynamic objects included in the link (often there will be none).
874 For each such file, we want to track down the corresponding
875 library, and include the symbol table in the link. This is what
876 the runtime dynamic linker will do. Tracking the files down here
877 permits one dynamic object to include another without requiring
878 special action by the person doing the link. Note that the
879 needed list can actually grow while we are stepping through this
881 needed = bfd_elf_get_needed_list (output_bfd, &link_info);
882 for (l = needed; l != NULL; l = l->next)
884 struct bfd_link_needed_list *ll;
885 struct dt_needed n, nn;
888 /* If the lib that needs this one was --as-needed and wasn't
889 found to be needed, then this lib isn't needed either. */
891 && (bfd_elf_get_dyn_lib_class (l->by) & DYN_AS_NEEDED) != 0)
894 /* If we've already seen this file, skip it. */
895 for (ll = needed; ll != l; ll = ll->next)
897 || (bfd_elf_get_dyn_lib_class (ll->by) & DYN_AS_NEEDED) == 0)
898 && strcmp (ll->name, l->name) == 0)
903 /* See if this file was included in the link explicitly. */
906 lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
907 if (global_found != NULL
908 && (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
909 & DYN_AS_NEEDED) == 0)
915 if (trace_file_tries)
916 info_msg (_("%s needed by %B\n"), l->name, l->by);
918 /* As-needed libs specified on the command line (or linker script)
919 take priority over libs found in search dirs. */
920 if (global_found != NULL)
922 nn.name = global_found->filename;
923 if (gld${EMULATION_NAME}_try_needed (&nn, TRUE))
927 /* We need to find this file and include the symbol table. We
928 want to search for the file in the same way that the dynamic
929 linker will search. That means that we want to use
930 rpath_link, rpath, then the environment variable
931 LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH
932 entries (native only), then the linker script LIB_SEARCH_DIRS.
933 We do not search using the -L arguments.
935 We search twice. The first time, we skip objects which may
936 introduce version mismatches. The second time, we force
937 their use. See gld${EMULATION_NAME}_vercheck comment. */
938 for (force = 0; force < 2; force++)
941 search_dirs_type *search;
943 if [ "x${NATIVE}" = xyes ] ; then
944 cat >>e${EMULATION_NAME}.c <<EOF
945 const char *lib_path;
948 if [ "x${USE_LIBPATH}" = xyes ] ; then
949 cat >>e${EMULATION_NAME}.c <<EOF
950 struct bfd_link_needed_list *rp;
954 cat >>e${EMULATION_NAME}.c <<EOF
956 if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link,
960 if [ "x${USE_LIBPATH}" = xyes ] ; then
961 cat >>e${EMULATION_NAME}.c <<EOF
962 if (gld${EMULATION_NAME}_search_needed (command_line.rpath,
967 if [ "x${NATIVE}" = xyes ] ; then
968 cat >>e${EMULATION_NAME}.c <<EOF
969 if (command_line.rpath_link == NULL
970 && command_line.rpath == NULL)
972 lib_path = (const char *) getenv ("LD_RUN_PATH");
973 if (gld${EMULATION_NAME}_search_needed (lib_path, &n,
977 lib_path = (const char *) getenv ("LD_LIBRARY_PATH");
978 if (gld${EMULATION_NAME}_search_needed (lib_path, &n, force))
982 if [ "x${USE_LIBPATH}" = xyes ] ; then
983 cat >>e${EMULATION_NAME}.c <<EOF
985 rp = bfd_elf_get_runpath_list (output_bfd, &link_info);
986 for (; !found && rp != NULL; rp = rp->next)
988 char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name);
989 found = (rp->by == l->by
990 && gld${EMULATION_NAME}_search_needed (tmpname,
1000 if [ "x${USE_LIBPATH}" = xyes ] ; then
1002 *-*-freebsd* | *-*-dragonfly*)
1003 cat >>e${EMULATION_NAME}.c <<EOF
1004 if (gld${EMULATION_NAME}_check_ld_elf_hints (l->name, force))
1010 *-*-linux-* | *-*-k*bsd*-*)
1012 cat >>e${EMULATION_NAME}.c <<EOF
1013 if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force))
1020 cat >>e${EMULATION_NAME}.c <<EOF
1021 len = strlen (l->name);
1022 for (search = search_head; search != NULL; search = search->next)
1026 if (search->cmdline)
1028 filename = (char *) xmalloc (strlen (search->name) + len + 2);
1029 sprintf (filename, "%s/%s", search->name, l->name);
1031 if (gld${EMULATION_NAME}_try_needed (&nn, force))
1038 cat >>e${EMULATION_NAME}.c <<EOF
1044 einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n",
1052 cat >>e${EMULATION_NAME}.c <<EOF
1054 /* Look through an expression for an assignment statement. */
1057 gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp)
1059 bfd_boolean provide = FALSE;
1061 switch (exp->type.node_class)
1067 /* We call record_link_assignment even if the symbol is defined.
1068 This is because if it is defined by a dynamic object, we
1069 actually want to use the value defined by the linker script,
1070 not the value from the dynamic object (because we are setting
1071 symbols like etext). If the symbol is defined by a regular
1072 object, then, as it happens, calling record_link_assignment
1074 if (strcmp (exp->assign.dst, ".") != 0)
1076 if (!bfd_elf_record_link_assignment (output_bfd, &link_info,
1077 exp->assign.dst, provide,
1078 exp->assign.hidden))
1079 einfo ("%P%F: failed to record assignment to %s: %E\n",
1082 gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
1086 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
1087 gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
1091 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
1092 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
1093 gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
1097 gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
1106 /* This is called by the before_allocation routine via
1107 lang_for_each_statement. It locates any assignment statements, and
1108 tells the ELF backend about them, in case they are assignments to
1109 symbols which are referred to by dynamic objects. */
1112 gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s)
1114 if (s->header.type == lang_assignment_statement_enum)
1115 gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
1120 if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
1121 if test x"${ELF_INTERPRETER_NAME+set}" = xset; then
1122 ELF_INTERPRETER_SET_DEFAULT="
1123 if (sinterp != NULL)
1125 sinterp->contents = (unsigned char *) ${ELF_INTERPRETER_NAME};
1126 sinterp->size = strlen ((char *) sinterp->contents) + 1;
1131 ELF_INTERPRETER_SET_DEFAULT=
1133 cat >>e${EMULATION_NAME}.c <<EOF
1135 /* This is called after the sections have been attached to output
1136 sections, but before any sizes or addresses have been set. */
1139 gld${EMULATION_NAME}_before_allocation (void)
1144 if (link_info.hash->type == bfd_link_elf_hash_table)
1145 _bfd_elf_tls_setup (output_bfd, &link_info);
1147 /* If we are going to make any variable assignments, we need to let
1148 the ELF backend know about them in case the variables are
1149 referred to by dynamic objects. */
1150 lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment);
1152 /* Let the ELF backend work out the sizes of any sections required
1153 by dynamic linking. */
1154 rpath = command_line.rpath;
1156 rpath = (const char *) getenv ("LD_RUN_PATH");
1157 if (! (bfd_elf_size_dynamic_sections
1158 (output_bfd, command_line.soname, rpath,
1159 command_line.filter_shlib,
1160 (const char * const *) command_line.auxiliary_filters,
1161 &link_info, &sinterp, lang_elf_version_info)))
1162 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
1164 ${ELF_INTERPRETER_SET_DEFAULT}
1165 /* Let the user override the dynamic linker we are using. */
1166 if (command_line.interpreter != NULL
1169 sinterp->contents = (bfd_byte *) command_line.interpreter;
1170 sinterp->size = strlen (command_line.interpreter) + 1;
1173 /* Look for any sections named .gnu.warning. As a GNU extensions,
1174 we treat such sections as containing warning messages. We print
1175 out the warning message, and then zero out the section size so
1176 that it does not get copied into the output file. */
1179 LANG_FOR_EACH_INPUT_STATEMENT (is)
1186 if (is->just_syms_flag)
1189 s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning");
1194 msg = xmalloc ((size_t) (sz + 1));
1195 if (! bfd_get_section_contents (is->the_bfd, s, msg,
1197 einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n",
1200 ret = link_info.callbacks->warning (&link_info, msg,
1201 (const char *) NULL,
1202 is->the_bfd, (asection *) NULL,
1207 /* Clobber the section size, so that we don't waste copying the
1208 warning into the output file. */
1211 /* Also set SEC_EXCLUDE, so that symbols defined in the warning
1212 section don't get copied to the output. */
1213 s->flags |= SEC_EXCLUDE | SEC_KEEP;
1217 before_allocation_default ();
1219 if (!bfd_elf_size_dynsym_hash_dynstr (output_bfd, &link_info))
1220 einfo ("%P%F: failed to set dynamic section sizes: %E\n");
1226 if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then
1227 cat >>e${EMULATION_NAME}.c <<EOF
1229 /* Try to open a dynamic archive. This is where we know that ELF
1230 dynamic libraries have an extension of .so (or .sl on oddball systems
1234 gld${EMULATION_NAME}_open_dynamic_archive
1235 (const char *arch, search_dirs_type *search, lang_input_statement_type *entry)
1237 const char *filename;
1240 if (! entry->is_archive)
1243 filename = entry->filename;
1245 /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION
1246 is defined, but it does not seem worth the headache to optimize
1247 away those two bytes of space. */
1248 string = (char *) xmalloc (strlen (search->name)
1251 #ifdef EXTRA_SHLIB_EXTENSION
1252 + strlen (EXTRA_SHLIB_EXTENSION)
1254 + sizeof "/lib.so");
1256 sprintf (string, "%s/lib%s%s.so", search->name, filename, arch);
1258 #ifdef EXTRA_SHLIB_EXTENSION
1259 /* Try the .so extension first. If that fails build a new filename
1260 using EXTRA_SHLIB_EXTENSION. */
1261 if (! ldfile_try_open_bfd (string, entry))
1262 sprintf (string, "%s/lib%s%s%s", search->name,
1263 filename, arch, EXTRA_SHLIB_EXTENSION);
1266 if (! ldfile_try_open_bfd (string, entry))
1272 entry->filename = string;
1274 /* We have found a dynamic object to include in the link. The ELF
1275 backend linker will create a DT_NEEDED entry in the .dynamic
1276 section naming this file. If this file includes a DT_SONAME
1277 entry, it will be used. Otherwise, the ELF linker will just use
1278 the name of the file. For an archive found by searching, like
1279 this one, the DT_NEEDED entry should consist of just the name of
1280 the file, without the path information used to find it. Note
1281 that we only need to do this if we have a dynamic object; an
1282 archive will never be referenced by a DT_NEEDED entry.
1284 FIXME: This approach--using bfd_elf_set_dt_needed_name--is not
1285 very pretty. I haven't been able to think of anything that is
1287 if (bfd_check_format (entry->the_bfd, bfd_object)
1288 && (entry->the_bfd->flags & DYNAMIC) != 0)
1290 ASSERT (entry->is_archive && entry->search_dirs_flag);
1292 /* Rather than duplicating the logic above. Just use the
1293 filename we recorded earlier. */
1295 filename = lbasename (entry->filename);
1296 bfd_elf_set_dt_needed_name (entry->the_bfd, filename);
1305 if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then
1306 cat >>e${EMULATION_NAME}.c <<EOF
1308 /* A variant of lang_output_section_find used by place_orphan. */
1310 static lang_output_section_statement_type *
1311 output_rel_find (asection *sec, int isdyn)
1313 lang_output_section_statement_type *lookup;
1314 lang_output_section_statement_type *last = NULL;
1315 lang_output_section_statement_type *last_alloc = NULL;
1316 lang_output_section_statement_type *last_rel = NULL;
1317 lang_output_section_statement_type *last_rel_alloc = NULL;
1318 int rela = sec->name[4] == 'a';
1320 for (lookup = &lang_output_section_statement.head->output_section_statement;
1322 lookup = lookup->next)
1324 if (lookup->constraint != -1
1325 && CONST_STRNEQ (lookup->name, ".rel"))
1327 int lookrela = lookup->name[4] == 'a';
1329 /* .rel.dyn must come before all other reloc sections, to suit
1334 /* Don't place after .rel.plt as doing so results in wrong
1336 if (strcmp (".plt", lookup->name + 4 + lookrela) == 0)
1339 if (rela == lookrela || last_rel == NULL)
1341 if ((rela == lookrela || last_rel_alloc == NULL)
1342 && lookup->bfd_section != NULL
1343 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1344 last_rel_alloc = lookup;
1348 if (lookup->bfd_section != NULL
1349 && (lookup->bfd_section->flags & SEC_ALLOC) != 0)
1350 last_alloc = lookup;
1354 return last_rel_alloc;
1365 /* Place an orphan section. We use this to put random SHF_ALLOC
1366 sections in the right segment. */
1369 gld${EMULATION_NAME}_place_orphan (asection *s)
1371 static struct orphan_save hold[] =
1374 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE,
1377 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1380 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
1386 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1389 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_DATA,
1392 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_SMALL_DATA,
1395 enum orphan_save_index
1405 static int orphan_init_done = 0;
1406 struct orphan_save *place;
1407 const char *secname;
1408 lang_output_section_statement_type *after;
1409 lang_output_section_statement_type *os;
1411 int iself = s->owner->xvec->flavour == bfd_target_elf_flavour;
1412 unsigned int sh_type = iself ? elf_section_type (s) : SHT_NULL;
1414 secname = bfd_get_section_name (s->owner, s);
1416 if (! link_info.relocatable
1417 && link_info.combreloc
1418 && (s->flags & SEC_ALLOC))
1424 secname = ".rela.dyn";
1428 secname = ".rel.dyn";
1434 else if (CONST_STRNEQ (secname, ".rel"))
1436 secname = secname[4] == 'a' ? ".rela.dyn" : ".rel.dyn";
1441 if (isdyn || (!config.unique_orphan_sections && !unique_section_p (s)))
1443 /* Look through the script to see where to place this section. */
1444 os = lang_output_section_find (secname);
1447 && (os->bfd_section == NULL
1448 || os->bfd_section->flags == 0
1449 || (_bfd_elf_match_sections_by_type (output_bfd,
1452 && ((s->flags ^ os->bfd_section->flags)
1453 & (SEC_LOAD | SEC_ALLOC)) == 0)))
1455 /* We already have an output section statement with this
1456 name, and its bfd section, if any, has compatible flags.
1457 If the section already exists but does not have any flags
1458 set, then it has been created by the linker, probably as a
1459 result of a --section-start command line switch. */
1460 lang_add_section (&os->children, s, os);
1465 if (!orphan_init_done)
1467 struct orphan_save *ho;
1468 for (ho = hold; ho < hold + sizeof (hold) / sizeof (hold[0]); ++ho)
1469 if (ho->name != NULL)
1471 ho->os = lang_output_section_find (ho->name);
1472 if (ho->os != NULL && ho->os->flags == 0)
1473 ho->os->flags = ho->flags;
1475 orphan_init_done = 1;
1478 /* If this is a final link, then always put .gnu.warning.SYMBOL
1479 sections into the .text section to get them out of the way. */
1480 if (link_info.executable
1481 && ! link_info.relocatable
1482 && CONST_STRNEQ (secname, ".gnu.warning.")
1483 && hold[orphan_text].os != NULL)
1485 lang_add_section (&hold[orphan_text].os->children, s,
1486 hold[orphan_text].os);
1490 /* Decide which segment the section should go in based on the
1491 section name and section flags. We put loadable .note sections
1492 right after the .interp section, so that the PT_NOTE segment is
1493 stored right after the program headers where the OS can read it
1494 in the first page. */
1497 if ((s->flags & SEC_ALLOC) == 0)
1499 else if ((s->flags & SEC_LOAD) != 0
1500 && ((iself && sh_type == SHT_NOTE)
1501 || (!iself && CONST_STRNEQ (secname, ".note"))))
1502 place = &hold[orphan_interp];
1503 else if ((s->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
1504 place = &hold[orphan_bss];
1505 else if ((s->flags & SEC_SMALL_DATA) != 0)
1506 place = &hold[orphan_sdata];
1507 else if ((s->flags & SEC_READONLY) == 0)
1508 place = &hold[orphan_data];
1509 else if (((iself && (sh_type == SHT_RELA || sh_type == SHT_REL))
1510 || (!iself && CONST_STRNEQ (secname, ".rel")))
1511 && (s->flags & SEC_LOAD) != 0)
1512 place = &hold[orphan_rel];
1513 else if ((s->flags & SEC_CODE) == 0)
1514 place = &hold[orphan_rodata];
1516 place = &hold[orphan_text];
1521 if (place->os == NULL)
1523 if (place->name != NULL)
1524 place->os = lang_output_section_find (place->name);
1526 place->os = output_rel_find (s, isdyn);
1530 after = lang_output_section_find_by_flags
1531 (s, &place->os, _bfd_elf_match_sections_by_type);
1533 /* *ABS* is always the first output section statement. */
1534 after = &lang_output_section_statement.head->output_section_statement;
1537 /* Choose a unique name for the section. This will be needed if the
1538 same section name appears in the input file with different
1539 loadable or allocatable characteristics. */
1540 if (bfd_get_section_by_name (output_bfd, secname) != NULL)
1542 static int count = 1;
1543 secname = bfd_get_unique_section_name (output_bfd, secname, &count);
1544 if (secname == NULL)
1545 einfo ("%F%P: place_orphan failed: %E\n");
1548 lang_insert_orphan (s, secname, after, place, NULL, NULL);
1555 if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
1556 cat >>e${EMULATION_NAME}.c <<EOF
1559 gld${EMULATION_NAME}_finish (void)
1561 bfd_boolean need_layout = bfd_elf_discard_info (output_bfd, &link_info);
1563 gld${EMULATION_NAME}_map_segments (need_layout);
1569 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
1570 cat >>e${EMULATION_NAME}.c <<EOF
1573 gld${EMULATION_NAME}_get_script (int *isfile)
1576 if test -n "$COMPILE_IN"
1578 # Scripts compiled in.
1580 # sed commands to quote an ld script as a C string.
1581 sc="-f stringify.sed"
1583 cat >>e${EMULATION_NAME}.c <<EOF
1587 if (link_info.relocatable && config.build_constructors)
1590 sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c
1591 echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c
1592 sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c
1593 echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c
1594 sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c
1595 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
1596 echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c
1597 sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c
1599 if test -n "$GENERATE_PIE_SCRIPT" ; then
1600 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1601 echo ' ; else if (link_info.pie && link_info.combreloc' >> e${EMULATION_NAME}.c
1602 echo ' && link_info.relro' >> e${EMULATION_NAME}.c
1603 echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
1604 sed $sc ldscripts/${EMULATION_NAME}.xdw >> e${EMULATION_NAME}.c
1605 echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1606 sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c
1608 echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c
1609 sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c
1611 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1612 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1613 echo ' ; else if (link_info.shared && link_info.combreloc' >> e${EMULATION_NAME}.c
1614 echo ' && link_info.relro' >> e${EMULATION_NAME}.c
1615 echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
1616 sed $sc ldscripts/${EMULATION_NAME}.xsw >> e${EMULATION_NAME}.c
1617 echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c
1618 sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c
1620 echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c
1621 sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c
1623 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1624 echo ' ; else if (link_info.combreloc && link_info.relro' >> e${EMULATION_NAME}.c
1625 echo ' && (link_info.flags & DT_BIND_NOW)) return' >> e${EMULATION_NAME}.c
1626 sed $sc ldscripts/${EMULATION_NAME}.xw >> e${EMULATION_NAME}.c
1627 echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c
1628 sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c
1630 echo ' ; else return' >> e${EMULATION_NAME}.c
1631 sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c
1632 echo '; }' >> e${EMULATION_NAME}.c
1635 # Scripts read from the filesystem.
1637 cat >>e${EMULATION_NAME}.c <<EOF
1641 if (link_info.relocatable && config.build_constructors)
1642 return "ldscripts/${EMULATION_NAME}.xu";
1643 else if (link_info.relocatable)
1644 return "ldscripts/${EMULATION_NAME}.xr";
1645 else if (!config.text_read_only)
1646 return "ldscripts/${EMULATION_NAME}.xbn";
1648 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
1650 cat >>e${EMULATION_NAME}.c <<EOF
1651 else if (!config.magic_demand_paged)
1652 return "ldscripts/${EMULATION_NAME}.xn";
1655 if test -n "$GENERATE_PIE_SCRIPT" ; then
1656 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1657 cat >>e${EMULATION_NAME}.c <<EOF
1658 else if (link_info.pie && link_info.combreloc
1659 && link_info.relro && (link_info.flags & DT_BIND_NOW))
1660 return "ldscripts/${EMULATION_NAME}.xdw";
1661 else if (link_info.pie && link_info.combreloc)
1662 return "ldscripts/${EMULATION_NAME}.xdc";
1665 cat >>e${EMULATION_NAME}.c <<EOF
1666 else if (link_info.pie)
1667 return "ldscripts/${EMULATION_NAME}.xd";
1670 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
1671 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1672 cat >>e${EMULATION_NAME}.c <<EOF
1673 else if (link_info.shared && link_info.combreloc
1674 && link_info.relro && (link_info.flags & DT_BIND_NOW))
1675 return "ldscripts/${EMULATION_NAME}.xsw";
1676 else if (link_info.shared && link_info.combreloc)
1677 return "ldscripts/${EMULATION_NAME}.xsc";
1680 cat >>e${EMULATION_NAME}.c <<EOF
1681 else if (link_info.shared)
1682 return "ldscripts/${EMULATION_NAME}.xs";
1685 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
1686 cat >>e${EMULATION_NAME}.c <<EOF
1687 else if (link_info.combreloc && link_info.relro
1688 && (link_info.flags & DT_BIND_NOW))
1689 return "ldscripts/${EMULATION_NAME}.xw";
1690 else if (link_info.combreloc)
1691 return "ldscripts/${EMULATION_NAME}.xc";
1694 cat >>e${EMULATION_NAME}.c <<EOF
1696 return "ldscripts/${EMULATION_NAME}.x";
1703 if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1705 if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
1706 cat >>e${EMULATION_NAME}.c <<EOF
1707 $PARSE_AND_LIST_PROLOGUE
1711 cat >>e${EMULATION_NAME}.c <<EOF
1713 #define OPTION_DISABLE_NEW_DTAGS (400)
1714 #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1)
1715 #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
1716 #define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
1717 #define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
1718 #define OPTION_HASH_STYLE (OPTION_EXCLUDE_LIBS + 1)
1721 gld${EMULATION_NAME}_add_options
1722 (int ns, char **shortopts, int nl, struct option **longopts,
1723 int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
1725 static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
1726 static const struct option xtra_long[] = {
1729 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1730 cat >>e${EMULATION_NAME}.c <<EOF
1731 {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
1732 {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
1733 {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
1734 {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
1735 {"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
1736 {"Bgroup", no_argument, NULL, OPTION_GROUP},
1740 if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
1741 cat >>e${EMULATION_NAME}.c <<EOF
1742 $PARSE_AND_LIST_LONGOPTS
1746 cat >>e${EMULATION_NAME}.c <<EOF
1747 {NULL, no_argument, NULL, 0}
1750 *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
1751 memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
1752 *longopts = (struct option *)
1753 xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
1754 memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
1758 gld${EMULATION_NAME}_handle_option (int optc)
1767 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1768 cat >>e${EMULATION_NAME}.c <<EOF
1769 case OPTION_DISABLE_NEW_DTAGS:
1770 link_info.new_dtags = FALSE;
1773 case OPTION_ENABLE_NEW_DTAGS:
1774 link_info.new_dtags = TRUE;
1777 case OPTION_EH_FRAME_HDR:
1778 link_info.eh_frame_hdr = TRUE;
1782 link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
1783 /* Groups must be self-contained. */
1784 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
1785 link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
1788 case OPTION_EXCLUDE_LIBS:
1789 add_excluded_libs (optarg);
1792 case OPTION_HASH_STYLE:
1793 link_info.emit_hash = FALSE;
1794 link_info.emit_gnu_hash = FALSE;
1795 if (strcmp (optarg, "sysv") == 0)
1796 link_info.emit_hash = TRUE;
1797 else if (strcmp (optarg, "gnu") == 0)
1798 link_info.emit_gnu_hash = TRUE;
1799 else if (strcmp (optarg, "both") == 0)
1801 link_info.emit_hash = TRUE;
1802 link_info.emit_gnu_hash = TRUE;
1805 einfo (_("%P%F: invalid hash style \`%s'\n"), optarg);
1809 if (strcmp (optarg, "initfirst") == 0)
1810 link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
1811 else if (strcmp (optarg, "interpose") == 0)
1812 link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
1813 else if (strcmp (optarg, "loadfltr") == 0)
1814 link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
1815 else if (strcmp (optarg, "nodefaultlib") == 0)
1816 link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
1817 else if (strcmp (optarg, "nodelete") == 0)
1818 link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
1819 else if (strcmp (optarg, "nodlopen") == 0)
1820 link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
1821 else if (strcmp (optarg, "nodump") == 0)
1822 link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
1823 else if (strcmp (optarg, "now") == 0)
1825 link_info.flags |= (bfd_vma) DF_BIND_NOW;
1826 link_info.flags_1 |= (bfd_vma) DF_1_NOW;
1828 else if (strcmp (optarg, "lazy") == 0)
1830 link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
1831 link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
1833 else if (strcmp (optarg, "origin") == 0)
1835 link_info.flags |= (bfd_vma) DF_ORIGIN;
1836 link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
1838 else if (strcmp (optarg, "defs") == 0)
1839 link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
1840 else if (strcmp (optarg, "muldefs") == 0)
1841 link_info.allow_multiple_definition = TRUE;
1842 else if (strcmp (optarg, "combreloc") == 0)
1843 link_info.combreloc = TRUE;
1844 else if (strcmp (optarg, "nocombreloc") == 0)
1845 link_info.combreloc = FALSE;
1846 else if (strcmp (optarg, "nocopyreloc") == 0)
1847 link_info.nocopyreloc = TRUE;
1848 else if (strcmp (optarg, "execstack") == 0)
1850 link_info.execstack = TRUE;
1851 link_info.noexecstack = FALSE;
1853 else if (strcmp (optarg, "noexecstack") == 0)
1855 link_info.noexecstack = TRUE;
1856 link_info.execstack = FALSE;
1860 if test -n "$COMMONPAGESIZE"; then
1861 cat >>e${EMULATION_NAME}.c <<EOF
1862 else if (strcmp (optarg, "relro") == 0)
1863 link_info.relro = TRUE;
1864 else if (strcmp (optarg, "norelro") == 0)
1865 link_info.relro = FALSE;
1869 cat >>e${EMULATION_NAME}.c <<EOF
1870 else if (CONST_STRNEQ (optarg, "max-page-size="))
1874 config.maxpagesize = strtoul (optarg + 14, &end, 0);
1876 einfo (_("%P%F: invalid maxium page size \`%s'\n"),
1879 else if (CONST_STRNEQ (optarg, "common-page-size="))
1882 config.commonpagesize = strtoul (optarg + 17, &end, 0);
1884 einfo (_("%P%F: invalid common page size \`%s'\n"),
1887 /* What about the other Solaris -z options? FIXME. */
1892 if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
1893 cat >>e${EMULATION_NAME}.c <<EOF
1894 $PARSE_AND_LIST_ARGS_CASES
1898 cat >>e${EMULATION_NAME}.c <<EOF
1906 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1907 cat >>e${EMULATION_NAME}.c <<EOF
1910 gld${EMULATION_NAME}_list_options (FILE * file)
1914 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
1915 cat >>e${EMULATION_NAME}.c <<EOF
1916 fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n"));
1917 fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n"));
1918 fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n"));
1919 fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n"));
1920 fprintf (file, _(" --hash-style=STYLE\tSet hash style to sysv, gnu or both\n"));
1921 fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n"));
1922 fprintf (file, _(" -z defs\t\tReport unresolved symbols in object files.\n"));
1923 fprintf (file, _(" -z execstack\t\tMark executable as requiring executable stack\n"));
1924 fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n"));
1925 fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n"));
1926 fprintf (file, _(" -z lazy\t\tMark object lazy runtime binding (default)\n"));
1927 fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n"));
1928 fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n"));
1929 fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n"));
1930 fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n"));
1931 fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n"));
1932 fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n"));
1933 fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n"));
1934 fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n"));
1935 fprintf (file, _(" -z noexecstack\tMark executable as not requiring executable stack\n"));
1938 if test -n "$COMMONPAGESIZE"; then
1939 cat >>e${EMULATION_NAME}.c <<EOF
1940 fprintf (file, _(" -z norelro\t\tDon't create RELRO program header\n"));
1944 cat >>e${EMULATION_NAME}.c <<EOF
1945 fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n"));
1946 fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n"));
1949 if test -n "$COMMONPAGESIZE"; then
1950 cat >>e${EMULATION_NAME}.c <<EOF
1951 fprintf (file, _(" -z relro\t\tCreate RELRO program header\n"));
1955 cat >>e${EMULATION_NAME}.c <<EOF
1956 fprintf (file, _(" -z max-page-size=SIZE\tSet maximum page size to SIZE\n"));
1957 fprintf (file, _(" -z common-page-size=SIZE\n\t\t\tSet common page size to SIZE\n"));
1958 fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n"));
1962 if test -n "$PARSE_AND_LIST_OPTIONS" ; then
1963 cat >>e${EMULATION_NAME}.c <<EOF
1964 $PARSE_AND_LIST_OPTIONS
1968 cat >>e${EMULATION_NAME}.c <<EOF
1972 if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
1973 cat >>e${EMULATION_NAME}.c <<EOF
1974 $PARSE_AND_LIST_EPILOGUE
1979 cat >>e${EMULATION_NAME}.c <<EOF
1980 #define gld${EMULATION_NAME}_add_options NULL
1981 #define gld${EMULATION_NAME}_handle_option NULL
1983 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
1984 cat >>e${EMULATION_NAME}.c <<EOF
1985 #define gld${EMULATION_NAME}_list_options NULL
1990 cat >>e${EMULATION_NAME}.c <<EOF
1992 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
1994 ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
1995 ${LDEMUL_SYSLIB-syslib_default},
1996 ${LDEMUL_HLL-hll_default},
1997 ${LDEMUL_AFTER_PARSE-after_parse_default},
1998 ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
1999 ${LDEMUL_AFTER_ALLOCATION-after_allocation_default},
2000 ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
2001 ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
2002 ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
2003 ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
2004 "${EMULATION_NAME}",
2006 ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish},
2007 ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
2008 ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive},
2009 ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan},
2010 ${LDEMUL_SET_SYMBOLS-NULL},
2011 ${LDEMUL_PARSE_ARGS-NULL},
2012 gld${EMULATION_NAME}_add_options,
2013 gld${EMULATION_NAME}_handle_option,
2014 ${LDEMUL_UNRECOGNIZED_FILE-NULL},
2015 ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options},
2016 ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols},
2017 ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
2018 ${LDEMUL_NEW_VERS_PATTERN-NULL}