Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
3 | # This file is now misnamed, because it supports both 32 bit and 64 bit | |
4 | # ELF emulations. | |
5 | test -z "${ELFSIZE}" && ELFSIZE=32 | |
86af25fe L |
6 | if [ -z "$MACHINE" ]; then |
7 | OUTPUT_ARCH=${ARCH} | |
8 | else | |
9 | OUTPUT_ARCH=${ARCH}:${MACHINE} | |
10 | fi | |
252b5132 RH |
11 | cat >e${EMULATION_NAME}.c <<EOF |
12 | /* This file is is generated by a shell script. DO NOT EDIT! */ | |
13 | ||
14 | /* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME} | |
e3dc8847 | 15 | Copyright 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
5e2f1575 | 16 | 2002, 2003, 2004 Free Software Foundation, Inc. |
252b5132 RH |
17 | Written by Steve Chamberlain <sac@cygnus.com> |
18 | ELF support by Ian Lance Taylor <ian@cygnus.com> | |
19 | ||
20 | This file is part of GLD, the Gnu Linker. | |
21 | ||
22 | This program is free software; you can redistribute it and/or modify | |
23 | it under the terms of the GNU General Public License as published by | |
24 | the Free Software Foundation; either version 2 of the License, or | |
25 | (at your option) any later version. | |
26 | ||
27 | This program is distributed in the hope that it will be useful, | |
28 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
29 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
30 | GNU General Public License for more details. | |
31 | ||
32 | You should have received a copy of the GNU General Public License | |
33 | along with this program; if not, write to the Free Software | |
34 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
35 | ||
36 | #define TARGET_IS_${EMULATION_NAME} | |
37 | ||
38 | #include "bfd.h" | |
39 | #include "sysdep.h" | |
1c9acd94 | 40 | #include "libiberty.h" |
3882b010 | 41 | #include "safe-ctype.h" |
fcf65871 | 42 | #include "getopt.h" |
252b5132 RH |
43 | |
44 | #include "bfdlink.h" | |
45 | ||
46 | #include "ld.h" | |
47 | #include "ldmain.h" | |
252b5132 RH |
48 | #include "ldmisc.h" |
49 | #include "ldexp.h" | |
50 | #include "ldlang.h" | |
b71e2778 AM |
51 | #include "ldfile.h" |
52 | #include "ldemul.h" | |
df2a7313 | 53 | #include <ldgram.h> |
e0ee487b | 54 | #include "elf/common.h" |
252b5132 | 55 | |
0c7a8e5a AM |
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${EMULATION_NAME}_before_allocation (void); | |
b34976b6 | 60 | static bfd_boolean gld${EMULATION_NAME}_place_orphan |
0c7a8e5a AM |
61 | (lang_input_statement_type *file, asection *s); |
62 | static void gld${EMULATION_NAME}_finish (void); | |
252b5132 | 63 | |
41392f03 AM |
64 | EOF |
65 | ||
66 | # Import any needed special functions and/or overrides. | |
67 | # | |
68 | if test -n "$EXTRA_EM_FILE" ; then | |
69 | . ${srcdir}/emultempl/${EXTRA_EM_FILE}.em | |
70 | fi | |
71 | ||
f813923c | 72 | # Functions in this file can be overridden by setting the LDEMUL_* shell |
41392f03 AM |
73 | # variables. If the name of the overriding function is the same as is |
74 | # defined in this file, then don't output this file's version. | |
75 | # If a different overriding name is given then output the standard function | |
76 | # as presumably it is called from the overriding function. | |
77 | # | |
78 | if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then | |
79 | cat >>e${EMULATION_NAME}.c <<EOF | |
80 | ||
252b5132 | 81 | static void |
0c7a8e5a | 82 | gld${EMULATION_NAME}_before_parse (void) |
252b5132 | 83 | { |
5e2f1575 | 84 | ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`); |
b34976b6 AM |
85 | config.dynamic_link = ${DYNAMIC_LINK-TRUE}; |
86 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`; | |
252b5132 RH |
87 | } |
88 | ||
41392f03 AM |
89 | EOF |
90 | fi | |
91 | ||
4a43e768 AM |
92 | if test x"$LDEMUL_RECOGNIZED_FILE" != xgld"${EMULATION_NAME}"_load_symbols; then |
93 | cat >>e${EMULATION_NAME}.c <<EOF | |
94 | /* Handle as_needed DT_NEEDED. */ | |
95 | ||
96 | static bfd_boolean | |
97 | gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *entry) | |
98 | { | |
99 | if (!entry->as_needed | |
100 | || (bfd_get_file_flags (entry->the_bfd) & DYNAMIC) == 0) | |
101 | return FALSE; | |
102 | ||
103 | /* Tell the ELF linker that we don't want the output file to have a | |
104 | DT_NEEDED entry for this file, unless it is used to resolve | |
105 | references in a regular object. */ | |
106 | bfd_elf_set_dyn_lib_class (entry->the_bfd, DYN_AS_NEEDED); | |
107 | ||
108 | /* Continue on with normal load_symbols processing. */ | |
109 | return FALSE; | |
110 | } | |
111 | EOF | |
112 | fi | |
113 | ||
41392f03 | 114 | cat >>e${EMULATION_NAME}.c <<EOF |
252b5132 RH |
115 | |
116 | /* These variables are required to pass information back and forth | |
117 | between after_open and check_needed and stat_needed and vercheck. */ | |
118 | ||
119 | static struct bfd_link_needed_list *global_needed; | |
120 | static struct stat global_stat; | |
b34976b6 | 121 | static bfd_boolean global_found; |
252b5132 | 122 | static struct bfd_link_needed_list *global_vercheck_needed; |
b34976b6 | 123 | static bfd_boolean global_vercheck_failed; |
252b5132 | 124 | |
252b5132 | 125 | |
04925e1e AM |
126 | /* On Linux, it's possible to have different versions of the same |
127 | shared library linked against different versions of libc. The | |
128 | dynamic linker somehow tags which libc version to use in | |
129 | /etc/ld.so.cache, and, based on the libc that it sees in the | |
130 | executable, chooses which version of the shared library to use. | |
252b5132 | 131 | |
04925e1e AM |
132 | We try to do a similar check here by checking whether this shared |
133 | library needs any other shared libraries which may conflict with | |
134 | libraries we have already included in the link. If it does, we | |
135 | skip it, and try to find another shared library farther on down the | |
136 | link path. | |
252b5132 | 137 | |
04925e1e AM |
138 | This is called via lang_for_each_input_file. |
139 | GLOBAL_VERCHECK_NEEDED is the list of objects needed by the object | |
f813923c | 140 | which we are checking. This sets GLOBAL_VERCHECK_FAILED if we find |
04925e1e | 141 | a conflicting version. */ |
252b5132 | 142 | |
04925e1e | 143 | static void |
0c7a8e5a | 144 | gld${EMULATION_NAME}_vercheck (lang_input_statement_type *s) |
04925e1e | 145 | { |
1c9acd94 | 146 | const char *soname; |
04925e1e | 147 | struct bfd_link_needed_list *l; |
252b5132 | 148 | |
04925e1e AM |
149 | if (global_vercheck_failed) |
150 | return; | |
151 | if (s->the_bfd == NULL | |
152 | || (bfd_get_file_flags (s->the_bfd) & DYNAMIC) == 0) | |
153 | return; | |
252b5132 | 154 | |
04925e1e AM |
155 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
156 | if (soname == NULL) | |
fed2999d | 157 | soname = lbasename (bfd_get_filename (s->the_bfd)); |
04925e1e AM |
158 | |
159 | for (l = global_vercheck_needed; l != NULL; l = l->next) | |
160 | { | |
161 | const char *suffix; | |
162 | ||
1c9acd94 | 163 | if (strcmp (soname, l->name) == 0) |
04925e1e AM |
164 | { |
165 | /* Probably can't happen, but it's an easy check. */ | |
166 | continue; | |
252b5132 RH |
167 | } |
168 | ||
04925e1e | 169 | if (strchr (l->name, '/') != NULL) |
252b5132 RH |
170 | continue; |
171 | ||
04925e1e AM |
172 | suffix = strstr (l->name, ".so."); |
173 | if (suffix == NULL) | |
174 | continue; | |
175 | ||
176 | suffix += sizeof ".so." - 1; | |
177 | ||
1c9acd94 | 178 | if (strncmp (soname, l->name, suffix - l->name) == 0) |
04925e1e AM |
179 | { |
180 | /* Here we know that S is a dynamic object FOO.SO.VER1, and | |
0c7a8e5a AM |
181 | the object we are considering needs a dynamic object |
182 | FOO.SO.VER2, and VER1 and VER2 are different. This | |
183 | appears to be a version mismatch, so we tell the caller | |
184 | to try a different version of this library. */ | |
b34976b6 | 185 | global_vercheck_failed = TRUE; |
04925e1e AM |
186 | return; |
187 | } | |
252b5132 RH |
188 | } |
189 | } | |
190 | ||
252b5132 | 191 | |
04925e1e AM |
192 | /* See if an input file matches a DT_NEEDED entry by running stat on |
193 | the file. */ | |
194 | ||
195 | static void | |
0c7a8e5a | 196 | gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s) |
252b5132 | 197 | { |
04925e1e AM |
198 | struct stat st; |
199 | const char *suffix; | |
200 | const char *soname; | |
252b5132 | 201 | |
04925e1e AM |
202 | if (global_found) |
203 | return; | |
204 | if (s->the_bfd == NULL) | |
205 | return; | |
206 | ||
207 | if (bfd_stat (s->the_bfd, &st) != 0) | |
252b5132 | 208 | { |
04925e1e AM |
209 | einfo ("%P:%B: bfd_stat failed: %E\n", s->the_bfd); |
210 | return; | |
211 | } | |
252b5132 | 212 | |
04925e1e AM |
213 | if (st.st_dev == global_stat.st_dev |
214 | && st.st_ino == global_stat.st_ino) | |
215 | { | |
b34976b6 | 216 | global_found = TRUE; |
04925e1e AM |
217 | return; |
218 | } | |
252b5132 | 219 | |
04925e1e AM |
220 | /* We issue a warning if it looks like we are including two |
221 | different versions of the same shared library. For example, | |
222 | there may be a problem if -lc picks up libc.so.6 but some other | |
223 | shared library has a DT_NEEDED entry of libc.so.5. This is a | |
f813923c | 224 | heuristic test, and it will only work if the name looks like |
04925e1e AM |
225 | NAME.so.VERSION. FIXME: Depending on file names is error-prone. |
226 | If we really want to issue warnings about mixing version numbers | |
227 | of shared libraries, we need to find a better way. */ | |
252b5132 | 228 | |
04925e1e AM |
229 | if (strchr (global_needed->name, '/') != NULL) |
230 | return; | |
231 | suffix = strstr (global_needed->name, ".so."); | |
232 | if (suffix == NULL) | |
233 | return; | |
234 | suffix += sizeof ".so." - 1; | |
252b5132 | 235 | |
04925e1e AM |
236 | soname = bfd_elf_get_dt_soname (s->the_bfd); |
237 | if (soname == NULL) | |
fed2999d | 238 | soname = lbasename (s->filename); |
252b5132 | 239 | |
cde43e70 | 240 | if (strncmp (soname, global_needed->name, suffix - global_needed->name) == 0) |
04925e1e | 241 | einfo ("%P: warning: %s, needed by %B, may conflict with %s\n", |
1c9acd94 | 242 | global_needed->name, global_needed->by, soname); |
252b5132 RH |
243 | } |
244 | ||
04925e1e | 245 | |
252b5132 RH |
246 | /* This function is called for each possible name for a dynamic object |
247 | named by a DT_NEEDED entry. The FORCE parameter indicates whether | |
248 | to skip the check for a conflicting version. */ | |
249 | ||
b34976b6 | 250 | static bfd_boolean |
0c7a8e5a | 251 | gld${EMULATION_NAME}_try_needed (const char *name, int force) |
252b5132 RH |
252 | { |
253 | bfd *abfd; | |
ec4eb78a | 254 | const char *soname; |
252b5132 RH |
255 | |
256 | abfd = bfd_openr (name, bfd_get_target (output_bfd)); | |
257 | if (abfd == NULL) | |
b34976b6 | 258 | return FALSE; |
252b5132 RH |
259 | if (! bfd_check_format (abfd, bfd_object)) |
260 | { | |
cde43e70 | 261 | bfd_close (abfd); |
b34976b6 | 262 | return FALSE; |
252b5132 RH |
263 | } |
264 | if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) | |
265 | { | |
cde43e70 | 266 | bfd_close (abfd); |
b34976b6 | 267 | return FALSE; |
252b5132 RH |
268 | } |
269 | ||
c4bb8067 L |
270 | /* For DT_NEEDED, they have to match. */ |
271 | if (abfd->xvec != output_bfd->xvec) | |
272 | { | |
273 | bfd_close (abfd); | |
b34976b6 | 274 | return FALSE; |
c4bb8067 L |
275 | } |
276 | ||
252b5132 RH |
277 | /* Check whether this object would include any conflicting library |
278 | versions. If FORCE is set, then we skip this check; we use this | |
279 | the second time around, if we couldn't find any compatible | |
280 | instance of the shared library. */ | |
281 | ||
282 | if (! force) | |
283 | { | |
284 | struct bfd_link_needed_list *needed; | |
285 | ||
286 | if (! bfd_elf_get_bfd_needed_list (abfd, &needed)) | |
287 | einfo ("%F%P:%B: bfd_elf_get_bfd_needed_list failed: %E\n", abfd); | |
288 | ||
289 | if (needed != NULL) | |
290 | { | |
291 | global_vercheck_needed = needed; | |
b34976b6 | 292 | global_vercheck_failed = FALSE; |
252b5132 RH |
293 | lang_for_each_input_file (gld${EMULATION_NAME}_vercheck); |
294 | if (global_vercheck_failed) | |
295 | { | |
cde43e70 | 296 | bfd_close (abfd); |
b34976b6 | 297 | /* Return FALSE to force the caller to move on to try |
0c7a8e5a | 298 | another file on the search path. */ |
b34976b6 | 299 | return FALSE; |
252b5132 RH |
300 | } |
301 | ||
302 | /* But wait! It gets much worse. On Linux, if a shared | |
0c7a8e5a AM |
303 | library does not use libc at all, we are supposed to skip |
304 | it the first time around in case we encounter a shared | |
305 | library later on with the same name which does use the | |
306 | version of libc that we want. This is much too horrible | |
307 | to use on any system other than Linux. */ | |
252b5132 RH |
308 | |
309 | EOF | |
310 | case ${target} in | |
311 | *-*-linux-gnu*) | |
312 | cat >>e${EMULATION_NAME}.c <<EOF | |
313 | { | |
314 | struct bfd_link_needed_list *l; | |
315 | ||
316 | for (l = needed; l != NULL; l = l->next) | |
317 | if (strncmp (l->name, "libc.so", 7) == 0) | |
318 | break; | |
319 | if (l == NULL) | |
320 | { | |
cde43e70 | 321 | bfd_close (abfd); |
b34976b6 | 322 | return FALSE; |
252b5132 RH |
323 | } |
324 | } | |
325 | ||
326 | EOF | |
327 | ;; | |
328 | esac | |
329 | cat >>e${EMULATION_NAME}.c <<EOF | |
330 | } | |
331 | } | |
332 | ||
333 | /* We've found a dynamic object matching the DT_NEEDED entry. */ | |
334 | ||
04925e1e AM |
335 | /* We have already checked that there is no other input file of the |
336 | same name. We must now check again that we are not including the | |
337 | same file twice. We need to do this because on many systems | |
338 | libc.so is a symlink to, e.g., libc.so.1. The SONAME entry will | |
339 | reference libc.so.1. If we have already included libc.so, we | |
340 | don't want to include libc.so.1 if they are the same file, and we | |
341 | can only check that using stat. */ | |
342 | ||
343 | if (bfd_stat (abfd, &global_stat) != 0) | |
344 | einfo ("%F%P:%B: bfd_stat failed: %E\n", abfd); | |
ec4eb78a L |
345 | |
346 | /* First strip off everything before the last '/'. */ | |
fed2999d | 347 | soname = lbasename (abfd->filename); |
ec4eb78a L |
348 | |
349 | if (trace_file_tries) | |
350 | info_msg (_("found %s at %s\n"), soname, name); | |
351 | ||
b34976b6 | 352 | global_found = FALSE; |
04925e1e AM |
353 | lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed); |
354 | if (global_found) | |
355 | { | |
b34976b6 | 356 | /* Return TRUE to indicate that we found the file, even though |
0c7a8e5a | 357 | we aren't going to do anything with it. */ |
b34976b6 | 358 | return TRUE; |
04925e1e AM |
359 | } |
360 | ||
4a43e768 AM |
361 | /* Specify the soname to use. */ |
362 | bfd_elf_set_dt_needed_name (abfd, soname); | |
04925e1e | 363 | |
4a43e768 AM |
364 | /* Tell the ELF linker that we don't want the output file to have a |
365 | DT_NEEDED entry for this file, unless it is used to resolve | |
366 | references in a regular object. */ | |
367 | bfd_elf_set_dyn_lib_class (abfd, DYN_DT_NEEDED); | |
04925e1e AM |
368 | |
369 | /* Add this file into the symbol table. */ | |
370 | if (! bfd_link_add_symbols (abfd, &link_info)) | |
371 | einfo ("%F%B: could not read symbols: %E\n", abfd); | |
372 | ||
b34976b6 | 373 | return TRUE; |
04925e1e AM |
374 | } |
375 | ||
376 | ||
377 | /* Search for a needed file in a path. */ | |
378 | ||
b34976b6 | 379 | static bfd_boolean |
0c7a8e5a | 380 | gld${EMULATION_NAME}_search_needed (const char *path, const char *name, int force) |
04925e1e AM |
381 | { |
382 | const char *s; | |
383 | size_t len; | |
384 | ||
cc5ce052 UD |
385 | if (name[0] == '/') |
386 | return gld${EMULATION_NAME}_try_needed (name, force); | |
387 | ||
04925e1e | 388 | if (path == NULL || *path == '\0') |
b34976b6 | 389 | return FALSE; |
04925e1e AM |
390 | len = strlen (name); |
391 | while (1) | |
392 | { | |
393 | char *filename, *sset; | |
394 | ||
395 | s = strchr (path, ':'); | |
396 | if (s == NULL) | |
397 | s = path + strlen (path); | |
398 | ||
399 | filename = (char *) xmalloc (s - path + len + 2); | |
400 | if (s == path) | |
401 | sset = filename; | |
402 | else | |
403 | { | |
404 | memcpy (filename, path, s - path); | |
405 | filename[s - path] = '/'; | |
406 | sset = filename + (s - path) + 1; | |
407 | } | |
408 | strcpy (sset, name); | |
409 | ||
410 | if (gld${EMULATION_NAME}_try_needed (filename, force)) | |
b34976b6 | 411 | return TRUE; |
04925e1e AM |
412 | |
413 | free (filename); | |
414 | ||
415 | if (*s == '\0') | |
416 | break; | |
417 | path = s + 1; | |
418 | } | |
419 | ||
b34976b6 | 420 | return FALSE; |
04925e1e AM |
421 | } |
422 | ||
423 | EOF | |
9c8ebd6a | 424 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
3dc16cab | 425 | cat >>e${EMULATION_NAME}.c <<EOF |
9c8ebd6a DJ |
426 | |
427 | /* Add the sysroot to every entry in a colon-separated path. */ | |
428 | ||
429 | static char * | |
0c7a8e5a | 430 | gld${EMULATION_NAME}_add_sysroot (const char *path) |
9c8ebd6a DJ |
431 | { |
432 | int len, colons, i; | |
433 | char *ret, *p; | |
434 | ||
435 | len = strlen (path); | |
436 | colons = 0; | |
437 | i = 0; | |
438 | while (path[i]) | |
439 | if (path[i++] == ':') | |
440 | colons++; | |
441 | ||
442 | if (path[i]) | |
443 | colons++; | |
444 | ||
42644a89 | 445 | len = len + (colons + 1) * strlen (ld_sysroot); |
9c8ebd6a DJ |
446 | ret = xmalloc (len + 1); |
447 | strcpy (ret, ld_sysroot); | |
448 | p = ret + strlen (ret); | |
449 | i = 0; | |
450 | while (path[i]) | |
451 | if (path[i] == ':') | |
452 | { | |
0c7a8e5a | 453 | *p++ = path[i++]; |
9c8ebd6a DJ |
454 | strcpy (p, ld_sysroot); |
455 | p = p + strlen (p); | |
9c8ebd6a DJ |
456 | } |
457 | else | |
458 | *p++ = path[i++]; | |
459 | ||
460 | *p = 0; | |
461 | return ret; | |
462 | } | |
04925e1e | 463 | |
3dc16cab DJ |
464 | EOF |
465 | case ${target} in | |
466 | *-*-linux-gnu*) | |
467 | cat >>e${EMULATION_NAME}.c <<EOF | |
04925e1e AM |
468 | /* For a native linker, check the file /etc/ld.so.conf for directories |
469 | in which we may find shared libraries. /etc/ld.so.conf is really | |
482e8b32 | 470 | only meaningful on Linux. */ |
04925e1e | 471 | |
b34976b6 | 472 | static bfd_boolean |
0c7a8e5a | 473 | gld${EMULATION_NAME}_check_ld_so_conf (const char *name, int force) |
04925e1e | 474 | { |
b34976b6 | 475 | static bfd_boolean initialized; |
04925e1e AM |
476 | static char *ld_so_conf; |
477 | ||
478 | if (! initialized) | |
479 | { | |
480 | FILE *f; | |
9c8ebd6a | 481 | char *tmppath; |
04925e1e | 482 | |
9c8ebd6a DJ |
483 | tmppath = concat (ld_sysroot, "/etc/ld.so.conf", NULL); |
484 | f = fopen (tmppath, FOPEN_RT); | |
485 | free (tmppath); | |
04925e1e AM |
486 | if (f != NULL) |
487 | { | |
488 | char *b; | |
489 | size_t len, alloc; | |
490 | int c; | |
491 | ||
492 | len = 0; | |
493 | alloc = 100; | |
494 | b = (char *) xmalloc (alloc); | |
495 | ||
496 | while ((c = getc (f)) != EOF) | |
497 | { | |
498 | if (len + 1 >= alloc) | |
499 | { | |
500 | alloc *= 2; | |
501 | b = (char *) xrealloc (b, alloc); | |
502 | } | |
503 | if (c != ':' | |
504 | && c != ' ' | |
505 | && c != '\t' | |
506 | && c != '\n' | |
507 | && c != ',') | |
508 | { | |
509 | b[len] = c; | |
510 | ++len; | |
511 | } | |
512 | else | |
513 | { | |
514 | if (len > 0 && b[len - 1] != ':') | |
515 | { | |
516 | b[len] = ':'; | |
517 | ++len; | |
518 | } | |
519 | } | |
520 | } | |
521 | ||
522 | if (len > 0 && b[len - 1] == ':') | |
523 | --len; | |
252b5132 | 524 | |
04925e1e AM |
525 | if (len > 0) |
526 | b[len] = '\0'; | |
527 | else | |
528 | { | |
529 | free (b); | |
530 | b = NULL; | |
531 | } | |
252b5132 | 532 | |
04925e1e | 533 | fclose (f); |
252b5132 | 534 | |
9c8ebd6a DJ |
535 | if (b) |
536 | { | |
537 | char *d = gld${EMULATION_NAME}_add_sysroot (b); | |
538 | free (b); | |
539 | b = d; | |
540 | } | |
541 | ||
04925e1e AM |
542 | ld_so_conf = b; |
543 | } | |
49e56c49 | 544 | |
b34976b6 | 545 | initialized = TRUE; |
04925e1e | 546 | } |
49e56c49 | 547 | |
04925e1e | 548 | if (ld_so_conf == NULL) |
b34976b6 | 549 | return FALSE; |
252b5132 | 550 | |
04925e1e | 551 | return gld${EMULATION_NAME}_search_needed (ld_so_conf, name, force); |
252b5132 RH |
552 | } |
553 | ||
04925e1e | 554 | EOF |
9c8ebd6a DJ |
555 | # Linux |
556 | ;; | |
04925e1e AM |
557 | esac |
558 | fi | |
559 | cat >>e${EMULATION_NAME}.c <<EOF | |
560 | ||
252b5132 RH |
561 | /* See if an input file matches a DT_NEEDED entry by name. */ |
562 | ||
563 | static void | |
0c7a8e5a | 564 | gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s) |
252b5132 RH |
565 | { |
566 | if (global_found) | |
567 | return; | |
568 | ||
577a0623 | 569 | if (s->filename != NULL) |
252b5132 | 570 | { |
577a0623 AM |
571 | const char *f; |
572 | ||
573 | if (strcmp (s->filename, global_needed->name) == 0) | |
574 | { | |
b34976b6 | 575 | global_found = TRUE; |
577a0623 AM |
576 | return; |
577 | } | |
578 | ||
579 | if (s->search_dirs_flag) | |
580 | { | |
581 | f = strrchr (s->filename, '/'); | |
582 | if (f != NULL | |
583 | && strcmp (f + 1, global_needed->name) == 0) | |
584 | { | |
b34976b6 | 585 | global_found = TRUE; |
577a0623 AM |
586 | return; |
587 | } | |
588 | } | |
252b5132 RH |
589 | } |
590 | ||
591 | if (s->the_bfd != NULL) | |
592 | { | |
593 | const char *soname; | |
594 | ||
595 | soname = bfd_elf_get_dt_soname (s->the_bfd); | |
596 | if (soname != NULL | |
597 | && strcmp (soname, global_needed->name) == 0) | |
598 | { | |
b34976b6 | 599 | global_found = TRUE; |
252b5132 RH |
600 | return; |
601 | } | |
602 | } | |
252b5132 RH |
603 | } |
604 | ||
41392f03 AM |
605 | EOF |
606 | ||
607 | if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then | |
608 | cat >>e${EMULATION_NAME}.c <<EOF | |
04925e1e AM |
609 | |
610 | /* This is called after all the input files have been opened. */ | |
252b5132 RH |
611 | |
612 | static void | |
0c7a8e5a | 613 | gld${EMULATION_NAME}_after_open (void) |
252b5132 | 614 | { |
04925e1e | 615 | struct bfd_link_needed_list *needed, *l; |
252b5132 | 616 | |
04925e1e | 617 | /* We only need to worry about this when doing a final link. */ |
1049f94e | 618 | if (link_info.relocatable || !link_info.executable) |
252b5132 RH |
619 | return; |
620 | ||
04925e1e AM |
621 | /* Get the list of files which appear in DT_NEEDED entries in |
622 | dynamic objects included in the link (often there will be none). | |
623 | For each such file, we want to track down the corresponding | |
624 | library, and include the symbol table in the link. This is what | |
625 | the runtime dynamic linker will do. Tracking the files down here | |
626 | permits one dynamic object to include another without requiring | |
627 | special action by the person doing the link. Note that the | |
628 | needed list can actually grow while we are stepping through this | |
629 | loop. */ | |
630 | needed = bfd_elf_get_needed_list (output_bfd, &link_info); | |
631 | for (l = needed; l != NULL; l = l->next) | |
252b5132 | 632 | { |
04925e1e AM |
633 | struct bfd_link_needed_list *ll; |
634 | int force; | |
252b5132 | 635 | |
04925e1e AM |
636 | /* If we've already seen this file, skip it. */ |
637 | for (ll = needed; ll != l; ll = ll->next) | |
638 | if (strcmp (ll->name, l->name) == 0) | |
639 | break; | |
640 | if (ll != l) | |
641 | continue; | |
252b5132 | 642 | |
04925e1e AM |
643 | /* See if this file was included in the link explicitly. */ |
644 | global_needed = l; | |
b34976b6 | 645 | global_found = FALSE; |
04925e1e AM |
646 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); |
647 | if (global_found) | |
648 | continue; | |
252b5132 | 649 | |
ec4eb78a L |
650 | if (trace_file_tries) |
651 | info_msg (_("%s needed by %B\n"), l->name, l->by); | |
652 | ||
04925e1e AM |
653 | /* We need to find this file and include the symbol table. We |
654 | want to search for the file in the same way that the dynamic | |
655 | linker will search. That means that we want to use | |
656 | rpath_link, rpath, then the environment variable | |
ec4eb78a L |
657 | LD_LIBRARY_PATH (native only), then the DT_RPATH/DT_RUNPATH |
658 | entries (native only), then the linker script LIB_SEARCH_DIRS. | |
659 | We do not search using the -L arguments. | |
252b5132 | 660 | |
04925e1e AM |
661 | We search twice. The first time, we skip objects which may |
662 | introduce version mismatches. The second time, we force | |
663 | their use. See gld${EMULATION_NAME}_vercheck comment. */ | |
664 | for (force = 0; force < 2; force++) | |
665 | { | |
04925e1e AM |
666 | size_t len; |
667 | search_dirs_type *search; | |
6dd8c765 | 668 | EOF |
9c8ebd6a | 669 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
6dd8c765 | 670 | cat >>e${EMULATION_NAME}.c <<EOF |
dcb0bd0e | 671 | const char *lib_path; |
6dd8c765 L |
672 | struct bfd_link_needed_list *rp; |
673 | int found; | |
674 | EOF | |
6dd8c765 L |
675 | fi |
676 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 | 677 | |
04925e1e AM |
678 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath_link, |
679 | l->name, force)) | |
680 | break; | |
dcb0bd0e | 681 | EOF |
9c8ebd6a | 682 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
dcb0bd0e | 683 | cat >>e${EMULATION_NAME}.c <<EOF |
04925e1e AM |
684 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, |
685 | l->name, force)) | |
686 | break; | |
9c8ebd6a DJ |
687 | EOF |
688 | fi | |
689 | if [ "x${NATIVE}" = xyes ] ; then | |
690 | cat >>e${EMULATION_NAME}.c <<EOF | |
04925e1e AM |
691 | if (command_line.rpath_link == NULL |
692 | && command_line.rpath == NULL) | |
693 | { | |
694 | lib_path = (const char *) getenv ("LD_RUN_PATH"); | |
695 | if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, | |
696 | force)) | |
697 | break; | |
698 | } | |
04925e1e AM |
699 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); |
700 | if (gld${EMULATION_NAME}_search_needed (lib_path, l->name, force)) | |
701 | break; | |
9c8ebd6a DJ |
702 | EOF |
703 | fi | |
704 | if [ "x${USE_LIBPATH}" = xyes ] ; then | |
705 | cat >>e${EMULATION_NAME}.c <<EOF | |
ec4eb78a | 706 | found = 0; |
6dd8c765 L |
707 | rp = bfd_elf_get_runpath_list (output_bfd, &link_info); |
708 | for (; !found && rp != NULL; rp = rp->next) | |
ec4eb78a | 709 | { |
9c8ebd6a | 710 | char *tmpname = gld${EMULATION_NAME}_add_sysroot (rp->name); |
ec4eb78a | 711 | found = (rp->by == l->by |
9c8ebd6a | 712 | && gld${EMULATION_NAME}_search_needed (tmpname, |
ec4eb78a L |
713 | l->name, |
714 | force)); | |
9c8ebd6a | 715 | free (tmpname); |
ec4eb78a L |
716 | } |
717 | if (found) | |
718 | break; | |
719 | ||
04925e1e | 720 | EOF |
04925e1e AM |
721 | fi |
722 | cat >>e${EMULATION_NAME}.c <<EOF | |
723 | len = strlen (l->name); | |
724 | for (search = search_head; search != NULL; search = search->next) | |
725 | { | |
726 | char *filename; | |
252b5132 | 727 | |
04925e1e AM |
728 | if (search->cmdline) |
729 | continue; | |
730 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
731 | sprintf (filename, "%s/%s", search->name, l->name); | |
732 | if (gld${EMULATION_NAME}_try_needed (filename, force)) | |
733 | break; | |
734 | free (filename); | |
735 | } | |
736 | if (search != NULL) | |
737 | break; | |
738 | EOF | |
9c8ebd6a DJ |
739 | if [ "x${USE_LIBPATH}" = xyes ] ; then |
740 | case ${target} in | |
741 | *-*-linux-gnu*) | |
742 | cat >>e${EMULATION_NAME}.c <<EOF | |
04925e1e AM |
743 | if (gld${EMULATION_NAME}_check_ld_so_conf (l->name, force)) |
744 | break; | |
745 | EOF | |
9c8ebd6a DJ |
746 | # Linux |
747 | ;; | |
04925e1e AM |
748 | esac |
749 | fi | |
750 | cat >>e${EMULATION_NAME}.c <<EOF | |
751 | } | |
252b5132 | 752 | |
04925e1e AM |
753 | if (force < 2) |
754 | continue; | |
252b5132 | 755 | |
e374f1d9 | 756 | einfo ("%P: warning: %s, needed by %B, not found (try using -rpath or -rpath-link)\n", |
04925e1e AM |
757 | l->name, l->by); |
758 | } | |
759 | } | |
252b5132 | 760 | |
41392f03 AM |
761 | EOF |
762 | fi | |
763 | ||
764 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 | 765 | |
04925e1e | 766 | /* Look through an expression for an assignment statement. */ |
252b5132 | 767 | |
04925e1e | 768 | static void |
0c7a8e5a | 769 | gld${EMULATION_NAME}_find_exp_assignment (etree_type *exp) |
04925e1e AM |
770 | { |
771 | struct bfd_link_hash_entry *h; | |
772 | ||
773 | switch (exp->type.node_class) | |
252b5132 | 774 | { |
04925e1e AM |
775 | case etree_provide: |
776 | h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, | |
b34976b6 | 777 | FALSE, FALSE, FALSE); |
04925e1e AM |
778 | if (h == NULL) |
779 | break; | |
252b5132 | 780 | |
04925e1e AM |
781 | /* We call record_link_assignment even if the symbol is defined. |
782 | This is because if it is defined by a dynamic object, we | |
783 | actually want to use the value defined by the linker script, | |
784 | not the value from the dynamic object (because we are setting | |
785 | symbols like etext). If the symbol is defined by a regular | |
786 | object, then, as it happens, calling record_link_assignment | |
787 | will do no harm. */ | |
788 | ||
789 | /* Fall through. */ | |
790 | case etree_assign: | |
791 | if (strcmp (exp->assign.dst, ".") != 0) | |
252b5132 | 792 | { |
efdffbe2 | 793 | if (! (bfd_elf_record_link_assignment |
04925e1e | 794 | (output_bfd, &link_info, exp->assign.dst, |
b34976b6 | 795 | exp->type.node_class == etree_provide ? TRUE : FALSE))) |
04925e1e AM |
796 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
797 | exp->assign.dst); | |
252b5132 | 798 | } |
04925e1e AM |
799 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); |
800 | break; | |
252b5132 | 801 | |
04925e1e AM |
802 | case etree_binary: |
803 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
804 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
805 | break; | |
252b5132 | 806 | |
04925e1e AM |
807 | case etree_trinary: |
808 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond); | |
809 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
810 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
811 | break; | |
252b5132 | 812 | |
04925e1e AM |
813 | case etree_unary: |
814 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
815 | break; | |
252b5132 | 816 | |
04925e1e AM |
817 | default: |
818 | break; | |
252b5132 RH |
819 | } |
820 | } | |
821 | ||
04925e1e AM |
822 | |
823 | /* This is called by the before_allocation routine via | |
824 | lang_for_each_statement. It locates any assignment statements, and | |
825 | tells the ELF backend about them, in case they are assignments to | |
826 | symbols which are referred to by dynamic objects. */ | |
827 | ||
828 | static void | |
0c7a8e5a | 829 | gld${EMULATION_NAME}_find_statement_assignment (lang_statement_union_type *s) |
04925e1e AM |
830 | { |
831 | if (s->header.type == lang_assignment_statement_enum) | |
832 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
833 | } | |
834 | ||
41392f03 AM |
835 | EOF |
836 | ||
837 | if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then | |
57e6abd2 AO |
838 | if test x"${ELF_INTERPRETER_NAME+set}" = xset; then |
839 | ELF_INTERPRETER_SET_DEFAULT=" | |
840 | if (sinterp != NULL) | |
841 | { | |
842 | sinterp->contents = ${ELF_INTERPRETER_NAME}; | |
843 | sinterp->_raw_size = strlen (sinterp->contents) + 1; | |
844 | } | |
845 | ||
846 | " | |
847 | else | |
848 | ELF_INTERPRETER_SET_DEFAULT= | |
849 | fi | |
41392f03 | 850 | cat >>e${EMULATION_NAME}.c <<EOF |
04925e1e | 851 | |
252b5132 RH |
852 | /* This is called after the sections have been attached to output |
853 | sections, but before any sizes or addresses have been set. */ | |
854 | ||
855 | static void | |
0c7a8e5a | 856 | gld${EMULATION_NAME}_before_allocation (void) |
252b5132 RH |
857 | { |
858 | const char *rpath; | |
859 | asection *sinterp; | |
860 | ||
fd574c46 | 861 | if (link_info.hash->type == bfd_link_elf_hash_table) |
e1918d23 AM |
862 | _bfd_elf_tls_setup (output_bfd, &link_info); |
863 | ||
252b5132 RH |
864 | /* If we are going to make any variable assignments, we need to let |
865 | the ELF backend know about them in case the variables are | |
866 | referred to by dynamic objects. */ | |
867 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
868 | ||
869 | /* Let the ELF backend work out the sizes of any sections required | |
870 | by dynamic linking. */ | |
871 | rpath = command_line.rpath; | |
872 | if (rpath == NULL) | |
873 | rpath = (const char *) getenv ("LD_RUN_PATH"); | |
5a580b3a | 874 | if (! (bfd_elf_size_dynamic_sections |
0c7a8e5a | 875 | (output_bfd, command_line.soname, rpath, |
605d9b3a | 876 | command_line.filter_shlib, |
252b5132 RH |
877 | (const char * const *) command_line.auxiliary_filters, |
878 | &link_info, &sinterp, lang_elf_version_info))) | |
879 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); | |
57e6abd2 | 880 | ${ELF_INTERPRETER_SET_DEFAULT} |
252b5132 RH |
881 | /* Let the user override the dynamic linker we are using. */ |
882 | if (command_line.interpreter != NULL | |
883 | && sinterp != NULL) | |
884 | { | |
885 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
886 | sinterp->_raw_size = strlen (command_line.interpreter) + 1; | |
887 | } | |
888 | ||
889 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
890 | we treat such sections as containing warning messages. We print | |
891 | out the warning message, and then zero out the section size so | |
892 | that it does not get copied into the output file. */ | |
893 | ||
894 | { | |
895 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
896 | { | |
897 | asection *s; | |
898 | bfd_size_type sz; | |
8c675694 | 899 | bfd_size_type prefix_len; |
252b5132 | 900 | char *msg; |
b34976b6 | 901 | bfd_boolean ret; |
8c675694 | 902 | const char * gnu_warning_prefix = _("warning: "); |
252b5132 RH |
903 | |
904 | if (is->just_syms_flag) | |
905 | continue; | |
906 | ||
907 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
908 | if (s == NULL) | |
909 | continue; | |
910 | ||
911 | sz = bfd_section_size (is->the_bfd, s); | |
8c675694 NC |
912 | prefix_len = strlen (gnu_warning_prefix); |
913 | msg = xmalloc ((size_t) (prefix_len + sz + 1)); | |
914 | strcpy (msg, gnu_warning_prefix); | |
915 | if (! bfd_get_section_contents (is->the_bfd, s, msg + prefix_len, | |
916 | (file_ptr) 0, sz)) | |
252b5132 RH |
917 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", |
918 | is->the_bfd); | |
8c675694 | 919 | msg[prefix_len + sz] = '\0'; |
252b5132 RH |
920 | ret = link_info.callbacks->warning (&link_info, msg, |
921 | (const char *) NULL, | |
922 | is->the_bfd, (asection *) NULL, | |
923 | (bfd_vma) 0); | |
924 | ASSERT (ret); | |
925 | free (msg); | |
926 | ||
927 | /* Clobber the section size, so that we don't waste copying the | |
928 | warning into the output file. */ | |
929 | s->_raw_size = 0; | |
930 | } | |
931 | } | |
932 | } | |
933 | ||
41392f03 AM |
934 | EOF |
935 | fi | |
936 | ||
937 | if test x"$LDEMUL_OPEN_DYNAMIC_ARCHIVE" != xgld"$EMULATION_NAME"_open_dynamic_archive; then | |
938 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 | 939 | |
04925e1e AM |
940 | /* Try to open a dynamic archive. This is where we know that ELF |
941 | dynamic libraries have an extension of .so (or .sl on oddball systems | |
942 | like hpux). */ | |
943 | ||
b34976b6 | 944 | static bfd_boolean |
0c7a8e5a AM |
945 | gld${EMULATION_NAME}_open_dynamic_archive |
946 | (const char *arch, search_dirs_type *search, lang_input_statement_type *entry) | |
252b5132 | 947 | { |
04925e1e AM |
948 | const char *filename; |
949 | char *string; | |
252b5132 | 950 | |
04925e1e | 951 | if (! entry->is_archive) |
b34976b6 | 952 | return FALSE; |
252b5132 | 953 | |
04925e1e | 954 | filename = entry->filename; |
252b5132 | 955 | |
04925e1e AM |
956 | /* This allocates a few bytes too many when EXTRA_SHLIB_EXTENSION |
957 | is defined, but it does not seem worth the headache to optimize | |
958 | away those two bytes of space. */ | |
959 | string = (char *) xmalloc (strlen (search->name) | |
960 | + strlen (filename) | |
961 | + strlen (arch) | |
962 | #ifdef EXTRA_SHLIB_EXTENSION | |
963 | + strlen (EXTRA_SHLIB_EXTENSION) | |
964 | #endif | |
965 | + sizeof "/lib.so"); | |
966 | ||
967 | sprintf (string, "%s/lib%s%s.so", search->name, filename, arch); | |
968 | ||
969 | #ifdef EXTRA_SHLIB_EXTENSION | |
970 | /* Try the .so extension first. If that fails build a new filename | |
971 | using EXTRA_SHLIB_EXTENSION. */ | |
972 | if (! ldfile_try_open_bfd (string, entry)) | |
973 | sprintf (string, "%s/lib%s%s%s", search->name, | |
974 | filename, arch, EXTRA_SHLIB_EXTENSION); | |
975 | #endif | |
976 | ||
977 | if (! ldfile_try_open_bfd (string, entry)) | |
252b5132 | 978 | { |
04925e1e | 979 | free (string); |
b34976b6 | 980 | return FALSE; |
04925e1e | 981 | } |
252b5132 | 982 | |
04925e1e | 983 | entry->filename = string; |
252b5132 | 984 | |
04925e1e AM |
985 | /* We have found a dynamic object to include in the link. The ELF |
986 | backend linker will create a DT_NEEDED entry in the .dynamic | |
987 | section naming this file. If this file includes a DT_SONAME | |
988 | entry, it will be used. Otherwise, the ELF linker will just use | |
989 | the name of the file. For an archive found by searching, like | |
990 | this one, the DT_NEEDED entry should consist of just the name of | |
991 | the file, without the path information used to find it. Note | |
992 | that we only need to do this if we have a dynamic object; an | |
993 | archive will never be referenced by a DT_NEEDED entry. | |
252b5132 | 994 | |
04925e1e AM |
995 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not |
996 | very pretty. I haven't been able to think of anything that is | |
997 | pretty, though. */ | |
998 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
999 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
1000 | { | |
04925e1e | 1001 | ASSERT (entry->is_archive && entry->search_dirs_flag); |
252b5132 | 1002 | |
04925e1e | 1003 | /* Rather than duplicating the logic above. Just use the |
1c9acd94 | 1004 | filename we recorded earlier. */ |
04925e1e | 1005 | |
fed2999d | 1006 | filename = lbasename (entry->filename); |
1c9acd94 | 1007 | bfd_elf_set_dt_needed_name (entry->the_bfd, filename); |
04925e1e AM |
1008 | } |
1009 | ||
b34976b6 | 1010 | return TRUE; |
04925e1e AM |
1011 | } |
1012 | ||
41392f03 AM |
1013 | EOF |
1014 | fi | |
cde43e70 AM |
1015 | |
1016 | if test x"$LDEMUL_PLACE_ORPHAN" != xgld"$EMULATION_NAME"_place_orphan; then | |
41392f03 AM |
1017 | cat >>e${EMULATION_NAME}.c <<EOF |
1018 | ||
1019 | /* A variant of lang_output_section_find. Used by place_orphan. */ | |
04925e1e | 1020 | |
04925e1e | 1021 | static lang_output_section_statement_type * |
2a36a117 | 1022 | output_rel_find (asection *sec, int isdyn) |
04925e1e AM |
1023 | { |
1024 | lang_statement_union_type *u; | |
1025 | lang_output_section_statement_type *lookup; | |
ba493122 | 1026 | lang_output_section_statement_type *last = NULL; |
2a36a117 | 1027 | lang_output_section_statement_type *last_alloc = NULL; |
ba493122 AM |
1028 | lang_output_section_statement_type *last_rel = NULL; |
1029 | lang_output_section_statement_type *last_rel_alloc = NULL; | |
24cdb50a | 1030 | int rela = sec->name[4] == 'a'; |
04925e1e | 1031 | |
ba493122 | 1032 | for (u = lang_output_section_statement.head; u; u = lookup->next) |
04925e1e AM |
1033 | { |
1034 | lookup = &u->output_section_statement; | |
ba493122 | 1035 | if (strncmp (".rel", lookup->name, 4) == 0) |
04925e1e | 1036 | { |
24cdb50a | 1037 | int lookrela = lookup->name[4] == 'a'; |
ba493122 | 1038 | |
2a36a117 AM |
1039 | /* .rel.dyn must come before all other reloc sections, to suit |
1040 | GNU ld.so. */ | |
1041 | if (isdyn) | |
1042 | break; | |
1043 | ||
1044 | /* Don't place after .rel.plt as doing so results in wrong | |
1045 | dynamic tags. */ | |
1046 | if (strcmp (".plt", lookup->name + 4 + lookrela) == 0) | |
ba493122 | 1047 | break; |
2a36a117 AM |
1048 | |
1049 | if (rela == lookrela || last_rel == NULL) | |
24cdb50a | 1050 | last_rel = lookup; |
2a36a117 AM |
1051 | if ((rela == lookrela || last_rel_alloc == NULL) |
1052 | && lookup->bfd_section != NULL | |
ba493122 AM |
1053 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) |
1054 | last_rel_alloc = lookup; | |
04925e1e | 1055 | } |
2a36a117 AM |
1056 | |
1057 | last = lookup; | |
1058 | if (lookup->bfd_section != NULL | |
1059 | && (lookup->bfd_section->flags & SEC_ALLOC) != 0) | |
1060 | last_alloc = lookup; | |
252b5132 | 1061 | } |
ba493122 AM |
1062 | |
1063 | if (last_rel_alloc) | |
1064 | return last_rel_alloc; | |
1065 | ||
1066 | if (last_rel) | |
1067 | return last_rel; | |
1068 | ||
2a36a117 AM |
1069 | if (last_alloc) |
1070 | return last_alloc; | |
1071 | ||
ba493122 | 1072 | return last; |
252b5132 RH |
1073 | } |
1074 | ||
95500e1c JJ |
1075 | /* Find the last output section before given output statement. |
1076 | Used by place_orphan. */ | |
1077 | ||
1078 | static asection * | |
0c7a8e5a | 1079 | output_prev_sec_find (lang_output_section_statement_type *os) |
95500e1c JJ |
1080 | { |
1081 | asection *s = (asection *) NULL; | |
1082 | lang_statement_union_type *u; | |
1083 | lang_output_section_statement_type *lookup; | |
1084 | ||
1085 | for (u = lang_output_section_statement.head; | |
1086 | u != (lang_statement_union_type *) NULL; | |
1087 | u = lookup->next) | |
1088 | { | |
1089 | lookup = &u->output_section_statement; | |
1090 | if (lookup == os) | |
cde43e70 AM |
1091 | return s; |
1092 | ||
1093 | if (lookup->bfd_section != NULL && lookup->bfd_section->owner != NULL) | |
95500e1c JJ |
1094 | s = lookup->bfd_section; |
1095 | } | |
1096 | ||
cde43e70 | 1097 | return NULL; |
95500e1c JJ |
1098 | } |
1099 | ||
252b5132 RH |
1100 | /* Place an orphan section. We use this to put random SHF_ALLOC |
1101 | sections in the right segment. */ | |
1102 | ||
41392f03 | 1103 | struct orphan_save { |
6a345e87 | 1104 | lang_output_section_statement_type *os; |
5ba47421 | 1105 | asection **section; |
6a345e87 | 1106 | lang_statement_union_type **stmt; |
1e5e5400 | 1107 | lang_statement_union_type **os_tail; |
6a345e87 | 1108 | }; |
252b5132 | 1109 | |
b34976b6 | 1110 | static bfd_boolean |
0c7a8e5a | 1111 | gld${EMULATION_NAME}_place_orphan (lang_input_statement_type *file, asection *s) |
252b5132 | 1112 | { |
aea4bd9d AM |
1113 | static struct orphan_save hold_text; |
1114 | static struct orphan_save hold_rodata; | |
1115 | static struct orphan_save hold_data; | |
1116 | static struct orphan_save hold_bss; | |
1117 | static struct orphan_save hold_rel; | |
1118 | static struct orphan_save hold_interp; | |
c940e6fc | 1119 | static struct orphan_save hold_sdata; |
f9989030 | 1120 | static int count = 1; |
6a345e87 | 1121 | struct orphan_save *place; |
71bfc0ae | 1122 | lang_statement_list_type *old; |
252b5132 RH |
1123 | lang_statement_list_type add; |
1124 | etree_type *address; | |
a854a4a7 | 1125 | const char *secname; |
a854a4a7 | 1126 | const char *ps = NULL; |
252b5132 | 1127 | lang_output_section_statement_type *os; |
1e5e5400 | 1128 | lang_statement_union_type **os_tail; |
36478e9d | 1129 | etree_type *load_base; |
24cdb50a | 1130 | int isdyn = 0; |
252b5132 | 1131 | |
aea4bd9d | 1132 | secname = bfd_get_section_name (s->owner, s); |
1049f94e | 1133 | if (! link_info.relocatable |
24cdb50a | 1134 | && link_info.combreloc |
a8927cfd | 1135 | && (s->flags & SEC_ALLOC) |
24cdb50a AM |
1136 | && strncmp (secname, ".rel", 4) == 0) |
1137 | { | |
1138 | if (secname[4] == 'a') | |
1139 | secname = ".rela.dyn"; | |
1140 | else | |
1141 | secname = ".rel.dyn"; | |
1142 | isdyn = 1; | |
1143 | } | |
aea4bd9d | 1144 | |
d0d6a25b | 1145 | if (isdyn || (!config.unique_orphan_sections && !unique_section_p (s))) |
252b5132 | 1146 | { |
6d02a667 | 1147 | /* Look through the script to see where to place this section. */ |
a854a4a7 AM |
1148 | os = lang_output_section_find (secname); |
1149 | ||
1150 | if (os != NULL | |
0f33d40b AM |
1151 | && (os->bfd_section == NULL |
1152 | || ((s->flags ^ os->bfd_section->flags) | |
1153 | & (SEC_LOAD | SEC_ALLOC)) == 0)) | |
a854a4a7 | 1154 | { |
0f33d40b | 1155 | /* We already have an output section statement with this |
22af9fd3 | 1156 | name, and its bfd section, if any, has compatible flags. */ |
39dcfe18 | 1157 | lang_add_section (&os->children, s, os, file); |
b34976b6 | 1158 | return TRUE; |
a854a4a7 | 1159 | } |
252b5132 RH |
1160 | } |
1161 | ||
aea4bd9d AM |
1162 | if (hold_text.os == NULL) |
1163 | hold_text.os = lang_output_section_find (".text"); | |
252b5132 RH |
1164 | |
1165 | /* If this is a final link, then always put .gnu.warning.SYMBOL | |
1166 | sections into the .text section to get them out of the way. */ | |
36af4a4e | 1167 | if (link_info.executable |
1049f94e | 1168 | && ! link_info.relocatable |
252b5132 | 1169 | && strncmp (secname, ".gnu.warning.", sizeof ".gnu.warning." - 1) == 0 |
6a345e87 | 1170 | && hold_text.os != NULL) |
252b5132 | 1171 | { |
39dcfe18 | 1172 | lang_add_section (&hold_text.os->children, s, hold_text.os, file); |
b34976b6 | 1173 | return TRUE; |
252b5132 RH |
1174 | } |
1175 | ||
1176 | /* Decide which segment the section should go in based on the | |
1177 | section name and section flags. We put loadable .note sections | |
1178 | right after the .interp section, so that the PT_NOTE segment is | |
1179 | stored right after the program headers where the OS can read it | |
1180 | in the first page. */ | |
aea4bd9d AM |
1181 | #define HAVE_SECTION(hold, name) \ |
1182 | (hold.os != NULL || (hold.os = lang_output_section_find (name)) != NULL) | |
1183 | ||
1049f94e | 1184 | if ((s->flags & SEC_EXCLUDE) != 0 && !link_info.relocatable) |
22af9fd3 AM |
1185 | { |
1186 | if (s->output_section == NULL) | |
1187 | s->output_section = bfd_abs_section_ptr; | |
b34976b6 | 1188 | return TRUE; |
22af9fd3 | 1189 | } |
71bfc0ae AM |
1190 | |
1191 | place = NULL; | |
1192 | if ((s->flags & SEC_ALLOC) == 0) | |
1193 | ; | |
252b5132 | 1194 | else if ((s->flags & SEC_LOAD) != 0 |
577a0623 | 1195 | && strncmp (secname, ".note", 5) == 0 |
aea4bd9d | 1196 | && HAVE_SECTION (hold_interp, ".interp")) |
6a345e87 | 1197 | place = &hold_interp; |
252b5132 | 1198 | else if ((s->flags & SEC_HAS_CONTENTS) == 0 |
aea4bd9d | 1199 | && HAVE_SECTION (hold_bss, ".bss")) |
6a345e87 | 1200 | place = &hold_bss; |
c940e6fc JW |
1201 | else if ((s->flags & SEC_SMALL_DATA) != 0 |
1202 | && HAVE_SECTION (hold_sdata, ".sdata")) | |
1203 | place = &hold_sdata; | |
252b5132 | 1204 | else if ((s->flags & SEC_READONLY) == 0 |
aea4bd9d | 1205 | && HAVE_SECTION (hold_data, ".data")) |
6a345e87 | 1206 | place = &hold_data; |
252b5132 | 1207 | else if (strncmp (secname, ".rel", 4) == 0 |
ba493122 | 1208 | && (s->flags & SEC_LOAD) != 0 |
aea4bd9d | 1209 | && (hold_rel.os != NULL |
2a36a117 | 1210 | || (hold_rel.os = output_rel_find (s, isdyn)) != NULL)) |
ba493122 | 1211 | place = &hold_rel; |
71bfc0ae | 1212 | else if ((s->flags & (SEC_CODE | SEC_READONLY)) == SEC_READONLY |
aea4bd9d | 1213 | && HAVE_SECTION (hold_rodata, ".rodata")) |
6a345e87 | 1214 | place = &hold_rodata; |
71bfc0ae | 1215 | else if ((s->flags & (SEC_CODE | SEC_READONLY)) == (SEC_CODE | SEC_READONLY) |
6a345e87 AM |
1216 | && hold_text.os != NULL) |
1217 | place = &hold_text; | |
252b5132 | 1218 | |
aea4bd9d AM |
1219 | #undef HAVE_SECTION |
1220 | ||
252b5132 RH |
1221 | /* Choose a unique name for the section. This will be needed if the |
1222 | same section name appears in the input file with different | |
f813923c | 1223 | loadable or allocatable characteristics. */ |
24cdb50a | 1224 | if (bfd_get_section_by_name (output_bfd, secname) != NULL) |
b3ea3584 | 1225 | { |
24cdb50a AM |
1226 | secname = bfd_get_unique_section_name (output_bfd, secname, &count); |
1227 | if (secname == NULL) | |
b3ea3584 AM |
1228 | einfo ("%F%P: place_orphan failed: %E\n"); |
1229 | } | |
252b5132 | 1230 | |
71bfc0ae AM |
1231 | /* Start building a list of statements for this section. |
1232 | First save the current statement pointer. */ | |
1233 | old = stat_ptr; | |
1234 | ||
1235 | /* If we have found an appropriate place for the output section | |
1236 | statements for this orphan, add them to our own private list, | |
1237 | inserting them later into the global statement list. */ | |
5ba47421 | 1238 | if (place != NULL) |
252b5132 | 1239 | { |
5ba47421 AM |
1240 | stat_ptr = &add; |
1241 | lang_list_init (stat_ptr); | |
71bfc0ae | 1242 | } |
5ba47421 | 1243 | |
71bfc0ae AM |
1244 | if (config.build_constructors) |
1245 | { | |
5ba47421 AM |
1246 | /* If the name of the section is representable in C, then create |
1247 | symbols to mark the start and the end of the section. */ | |
24cdb50a | 1248 | for (ps = secname; *ps != '\0'; ps++) |
3882b010 | 1249 | if (! ISALNUM (*ps) && *ps != '_') |
5ba47421 | 1250 | break; |
71bfc0ae | 1251 | if (*ps == '\0') |
5ba47421 AM |
1252 | { |
1253 | char *symname; | |
1254 | etree_type *e_align; | |
1255 | ||
24cdb50a AM |
1256 | symname = (char *) xmalloc (ps - secname + sizeof "__start_"); |
1257 | sprintf (symname, "__start_%s", secname); | |
5ba47421 AM |
1258 | e_align = exp_unop (ALIGN_K, |
1259 | exp_intop ((bfd_vma) 1 << s->alignment_power)); | |
1260 | lang_add_assignment (exp_assop ('=', symname, e_align)); | |
1261 | } | |
252b5132 RH |
1262 | } |
1263 | ||
36478e9d | 1264 | address = NULL; |
1049f94e | 1265 | if (link_info.relocatable || (s->flags & (SEC_LOAD | SEC_ALLOC)) == 0) |
252b5132 | 1266 | address = exp_intop ((bfd_vma) 0); |
36478e9d AM |
1267 | |
1268 | load_base = NULL; | |
1269 | if (place != NULL && place->os->load_base != NULL) | |
1270 | { | |
1271 | etree_type *lma_from_vma; | |
1272 | lma_from_vma = exp_binop ('-', place->os->load_base, | |
1273 | exp_nameop (ADDR, place->os->name)); | |
1274 | load_base = exp_binop ('+', lma_from_vma, | |
1275 | exp_nameop (ADDR, secname)); | |
1276 | } | |
252b5132 | 1277 | |
1e5e5400 | 1278 | os_tail = lang_output_section_statement.tail; |
24cdb50a | 1279 | os = lang_enter_output_section_statement (secname, address, 0, |
aea4bd9d AM |
1280 | (etree_type *) NULL, |
1281 | (etree_type *) NULL, | |
36478e9d | 1282 | load_base); |
252b5132 | 1283 | |
39dcfe18 | 1284 | lang_add_section (&os->children, s, os, file); |
252b5132 | 1285 | |
20d04697 L |
1286 | lang_leave_output_section_statement |
1287 | ((bfd_vma) 0, "*default*", | |
ee3cc2e2 | 1288 | (struct lang_output_section_phdr_list *) NULL, NULL); |
20d04697 | 1289 | |
71bfc0ae | 1290 | if (config.build_constructors && *ps == '\0') |
252b5132 | 1291 | { |
71bfc0ae | 1292 | char *symname; |
252b5132 | 1293 | |
71bfc0ae AM |
1294 | /* lang_leave_ouput_section_statement resets stat_ptr. Put |
1295 | stat_ptr back where we want it. */ | |
1296 | if (place != NULL) | |
1297 | stat_ptr = &add; | |
252b5132 | 1298 | |
24cdb50a AM |
1299 | symname = (char *) xmalloc (ps - secname + sizeof "__stop_"); |
1300 | sprintf (symname, "__stop_%s", secname); | |
71bfc0ae AM |
1301 | lang_add_assignment (exp_assop ('=', symname, |
1302 | exp_nameop (NAME, "."))); | |
1303 | } | |
5ba47421 | 1304 | |
71bfc0ae AM |
1305 | /* Restore the global list pointer. */ |
1306 | stat_ptr = old; | |
1307 | ||
25844aae | 1308 | if (place != NULL && os->bfd_section != NULL) |
71bfc0ae | 1309 | { |
cde43e70 | 1310 | asection *snew, **pps; |
5ba47421 AM |
1311 | |
1312 | snew = os->bfd_section; | |
95500e1c | 1313 | |
cde43e70 AM |
1314 | /* Shuffle the bfd section list to make the output file look |
1315 | neater. This is really only cosmetic. */ | |
1316 | if (place->section == NULL) | |
5ba47421 | 1317 | { |
cde43e70 | 1318 | asection *bfd_section = place->os->bfd_section; |
5ba47421 | 1319 | |
cde43e70 AM |
1320 | /* If the output statement hasn't been used to place |
1321 | any input sections (and thus doesn't have an output | |
1322 | bfd_section), look for the closest prior output statement | |
1323 | having an output section. */ | |
1324 | if (bfd_section == NULL) | |
1325 | bfd_section = output_prev_sec_find (place->os); | |
1326 | ||
1327 | if (bfd_section != NULL && bfd_section != snew) | |
1328 | place->section = &bfd_section->next; | |
1329 | } | |
1330 | ||
1331 | if (place->section != NULL) | |
1332 | { | |
3dfe7a8c | 1333 | /* Unlink the section. */ |
5ba47421 AM |
1334 | for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next) |
1335 | ; | |
3dfe7a8c | 1336 | bfd_section_list_remove (output_bfd, pps); |
5ba47421 AM |
1337 | |
1338 | /* Now tack it on to the "place->os" section list. */ | |
3dfe7a8c | 1339 | bfd_section_list_insert (output_bfd, place->section, snew); |
5ba47421 | 1340 | } |
5ba47421 | 1341 | |
cde43e70 AM |
1342 | /* Save the end of this list. Further ophans of this type will |
1343 | follow the one we've just added. */ | |
1344 | place->section = &snew->next; | |
1345 | ||
1346 | /* The following is non-cosmetic. We try to put the output | |
1347 | statements in some sort of reasonable order here, because | |
1348 | they determine the final load addresses of the orphan | |
1349 | sections. In addition, placing output statements in the | |
1350 | wrong order may require extra segments. For instance, | |
1351 | given a typical situation of all read-only sections placed | |
1352 | in one segment and following that a segment containing all | |
1353 | the read-write sections, we wouldn't want to place an orphan | |
1354 | read/write section before or amongst the read-only ones. */ | |
ed15ac6a | 1355 | if (add.head != NULL) |
01cc8ff8 | 1356 | { |
1e5e5400 AM |
1357 | lang_statement_union_type *newly_added_os; |
1358 | ||
ed15ac6a AM |
1359 | if (place->stmt == NULL) |
1360 | { | |
1361 | /* Put the new statement list right at the head. */ | |
1362 | *add.tail = place->os->header.next; | |
1363 | place->os->header.next = add.head; | |
1e5e5400 AM |
1364 | |
1365 | place->os_tail = &place->os->next; | |
ed15ac6a AM |
1366 | } |
1367 | else | |
1368 | { | |
1369 | /* Put it after the last orphan statement we added. */ | |
1370 | *add.tail = *place->stmt; | |
1371 | *place->stmt = add.head; | |
1372 | } | |
71bfc0ae | 1373 | |
ed15ac6a AM |
1374 | /* Fix the global list pointer if we happened to tack our |
1375 | new list at the tail. */ | |
1376 | if (*old->tail == add.head) | |
1377 | old->tail = add.tail; | |
71bfc0ae | 1378 | |
ed15ac6a AM |
1379 | /* Save the end of this list. */ |
1380 | place->stmt = add.tail; | |
1e5e5400 AM |
1381 | |
1382 | /* Do the same for the list of output section statements. */ | |
1383 | newly_added_os = *os_tail; | |
1384 | *os_tail = NULL; | |
1385 | newly_added_os->output_section_statement.next = *place->os_tail; | |
1386 | *place->os_tail = newly_added_os; | |
1387 | place->os_tail = &newly_added_os->output_section_statement.next; | |
1388 | ||
1389 | /* Fixing the global list pointer here is a little different. | |
1390 | We added to the list in lang_enter_output_section_statement, | |
1391 | trimmed off the new output_section_statment above when | |
1392 | assigning *os_tail = NULL, but possibly added it back in | |
1393 | the same place when assigning *place->os_tail. */ | |
1394 | if (*os_tail == NULL) | |
1395 | lang_output_section_statement.tail = os_tail; | |
ed15ac6a | 1396 | } |
6a345e87 | 1397 | } |
252b5132 | 1398 | |
b34976b6 | 1399 | return TRUE; |
252b5132 | 1400 | } |
c56feb2b AM |
1401 | EOF |
1402 | fi | |
1403 | ||
1404 | if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then | |
1405 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 | 1406 | |
73d074b4 | 1407 | static void |
0c7a8e5a | 1408 | gld${EMULATION_NAME}_finish (void) |
73d074b4 | 1409 | { |
7a945db6 | 1410 | if (bfd_elf_discard_info (output_bfd, &link_info)) |
73d074b4 | 1411 | { |
e3dc8847 HPN |
1412 | lang_reset_memory_regions (); |
1413 | ||
73d074b4 DJ |
1414 | /* Resize the sections. */ |
1415 | lang_size_sections (stat_ptr->head, abs_output_section, | |
cf888e70 | 1416 | &stat_ptr->head, 0, (bfd_vma) 0, NULL, TRUE); |
73d074b4 DJ |
1417 | |
1418 | /* Redo special stuff. */ | |
1419 | ldemul_after_allocation (); | |
1420 | ||
1421 | /* Do the assignments again. */ | |
1422 | lang_do_assignments (stat_ptr->head, abs_output_section, | |
2c382fb6 | 1423 | (fill_type *) 0, (bfd_vma) 0); |
73d074b4 DJ |
1424 | } |
1425 | } | |
41392f03 AM |
1426 | EOF |
1427 | fi | |
1428 | ||
1429 | if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then | |
1430 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 RH |
1431 | |
1432 | static char * | |
0c7a8e5a | 1433 | gld${EMULATION_NAME}_get_script (int *isfile) |
252b5132 RH |
1434 | EOF |
1435 | ||
1436 | if test -n "$COMPILE_IN" | |
1437 | then | |
1438 | # Scripts compiled in. | |
1439 | ||
1440 | # sed commands to quote an ld script as a C string. | |
597e2591 | 1441 | sc="-f stringify.sed" |
252b5132 RH |
1442 | |
1443 | cat >>e${EMULATION_NAME}.c <<EOF | |
60bcf0fa | 1444 | { |
252b5132 RH |
1445 | *isfile = 0; |
1446 | ||
1049f94e | 1447 | if (link_info.relocatable && config.build_constructors) |
597e2591 | 1448 | return |
252b5132 | 1449 | EOF |
b34976b6 | 1450 | sed $sc ldscripts/${EMULATION_NAME}.xu >> e${EMULATION_NAME}.c |
1049f94e | 1451 | echo ' ; else if (link_info.relocatable) return' >> e${EMULATION_NAME}.c |
b34976b6 AM |
1452 | sed $sc ldscripts/${EMULATION_NAME}.xr >> e${EMULATION_NAME}.c |
1453 | echo ' ; else if (!config.text_read_only) return' >> e${EMULATION_NAME}.c | |
1454 | sed $sc ldscripts/${EMULATION_NAME}.xbn >> e${EMULATION_NAME}.c | |
61585df2 | 1455 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else |
b34976b6 AM |
1456 | echo ' ; else if (!config.magic_demand_paged) return' >> e${EMULATION_NAME}.c |
1457 | sed $sc ldscripts/${EMULATION_NAME}.xn >> e${EMULATION_NAME}.c | |
db6751f2 | 1458 | fi |
36af4a4e JJ |
1459 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
1460 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
1461 | echo ' ; else if (link_info.pie && link_info.combreloc) return' >> e${EMULATION_NAME}.c | |
1462 | sed $sc ldscripts/${EMULATION_NAME}.xdc >> e${EMULATION_NAME}.c | |
1463 | fi | |
1464 | echo ' ; else if (link_info.pie) return' >> e${EMULATION_NAME}.c | |
1465 | sed $sc ldscripts/${EMULATION_NAME}.xd >> e${EMULATION_NAME}.c | |
1466 | fi | |
252b5132 | 1467 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
82434356 | 1468 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
db6751f2 | 1469 | echo ' ; else if (link_info.shared && link_info.combreloc) return' >> e${EMULATION_NAME}.c |
b34976b6 | 1470 | sed $sc ldscripts/${EMULATION_NAME}.xsc >> e${EMULATION_NAME}.c |
82434356 | 1471 | fi |
b34976b6 AM |
1472 | echo ' ; else if (link_info.shared) return' >> e${EMULATION_NAME}.c |
1473 | sed $sc ldscripts/${EMULATION_NAME}.xs >> e${EMULATION_NAME}.c | |
252b5132 | 1474 | fi |
82434356 | 1475 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then |
b34976b6 AM |
1476 | echo ' ; else if (link_info.combreloc) return' >> e${EMULATION_NAME}.c |
1477 | sed $sc ldscripts/${EMULATION_NAME}.xc >> e${EMULATION_NAME}.c | |
82434356 | 1478 | fi |
b34976b6 AM |
1479 | echo ' ; else return' >> e${EMULATION_NAME}.c |
1480 | sed $sc ldscripts/${EMULATION_NAME}.x >> e${EMULATION_NAME}.c | |
1481 | echo '; }' >> e${EMULATION_NAME}.c | |
252b5132 RH |
1482 | |
1483 | else | |
1484 | # Scripts read from the filesystem. | |
1485 | ||
1486 | cat >>e${EMULATION_NAME}.c <<EOF | |
60bcf0fa | 1487 | { |
252b5132 RH |
1488 | *isfile = 1; |
1489 | ||
1049f94e | 1490 | if (link_info.relocatable && config.build_constructors) |
252b5132 | 1491 | return "ldscripts/${EMULATION_NAME}.xu"; |
1049f94e | 1492 | else if (link_info.relocatable) |
252b5132 RH |
1493 | return "ldscripts/${EMULATION_NAME}.xr"; |
1494 | else if (!config.text_read_only) | |
1495 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
a060b769 AM |
1496 | EOF |
1497 | if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : | |
1498 | else | |
1499 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 RH |
1500 | else if (!config.magic_demand_paged) |
1501 | return "ldscripts/${EMULATION_NAME}.xn"; | |
a060b769 AM |
1502 | EOF |
1503 | fi | |
36af4a4e JJ |
1504 | if test -n "$GENERATE_PIE_SCRIPT" ; then |
1505 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
1506 | cat >>e${EMULATION_NAME}.c <<EOF | |
1507 | else if (link_info.pie && link_info.combreloc) | |
1508 | return "ldscripts/${EMULATION_NAME}.xdc"; | |
1509 | EOF | |
1510 | fi | |
1511 | cat >>e${EMULATION_NAME}.c <<EOF | |
1512 | else if (link_info.pie) | |
1513 | return "ldscripts/${EMULATION_NAME}.xd"; | |
1514 | EOF | |
1515 | fi | |
a060b769 AM |
1516 | if test -n "$GENERATE_SHLIB_SCRIPT" ; then |
1517 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
1518 | cat >>e${EMULATION_NAME}.c <<EOF | |
1519 | else if (link_info.shared && link_info.combreloc) | |
1520 | return "ldscripts/${EMULATION_NAME}.xsc"; | |
1521 | EOF | |
1522 | fi | |
1523 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 RH |
1524 | else if (link_info.shared) |
1525 | return "ldscripts/${EMULATION_NAME}.xs"; | |
a060b769 AM |
1526 | EOF |
1527 | fi | |
1528 | if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then | |
1529 | cat >>e${EMULATION_NAME}.c <<EOF | |
1530 | else if (link_info.combreloc) | |
1531 | return "ldscripts/${EMULATION_NAME}.xc"; | |
1532 | EOF | |
1533 | fi | |
1534 | cat >>e${EMULATION_NAME}.c <<EOF | |
252b5132 RH |
1535 | else |
1536 | return "ldscripts/${EMULATION_NAME}.x"; | |
1537 | } | |
252b5132 | 1538 | |
3b108066 | 1539 | EOF |
41392f03 AM |
1540 | fi |
1541 | fi | |
3b108066 | 1542 | |
41392f03 | 1543 | if test -n "$PARSE_AND_LIST_ARGS_CASES" -o x"$GENERATE_SHLIB_SCRIPT" = xyes; then |
3b108066 | 1544 | |
e0ee487b L |
1545 | if test -n "$PARSE_AND_LIST_PROLOGUE" ; then |
1546 | cat >>e${EMULATION_NAME}.c <<EOF | |
1547 | $PARSE_AND_LIST_PROLOGUE | |
1548 | EOF | |
1549 | fi | |
1550 | ||
e0ee487b L |
1551 | cat >>e${EMULATION_NAME}.c <<EOF |
1552 | ||
6c1439be L |
1553 | #define OPTION_DISABLE_NEW_DTAGS (400) |
1554 | #define OPTION_ENABLE_NEW_DTAGS (OPTION_DISABLE_NEW_DTAGS + 1) | |
a1ab1d2a | 1555 | #define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1) |
65765700 | 1556 | #define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1) |
6c1439be | 1557 | |
3bcf5557 | 1558 | static void |
0c7a8e5a AM |
1559 | gld${EMULATION_NAME}_add_options |
1560 | (int ns, char **shortopts, int nl, struct option **longopts, | |
1561 | int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED) | |
e0ee487b | 1562 | { |
3bcf5557 AM |
1563 | static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:"; |
1564 | static const struct option xtra_long[] = { | |
e0ee487b | 1565 | EOF |
e0ee487b L |
1566 | |
1567 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
1568 | cat >>e${EMULATION_NAME}.c <<EOF | |
3bcf5557 AM |
1569 | {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS}, |
1570 | {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS}, | |
1571 | {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR}, | |
1572 | {"Bgroup", no_argument, NULL, OPTION_GROUP}, | |
e0ee487b L |
1573 | EOF |
1574 | fi | |
1575 | ||
1576 | if test -n "$PARSE_AND_LIST_LONGOPTS" ; then | |
1577 | cat >>e${EMULATION_NAME}.c <<EOF | |
3bcf5557 | 1578 | $PARSE_AND_LIST_LONGOPTS |
e0ee487b L |
1579 | EOF |
1580 | fi | |
1581 | ||
e0ee487b | 1582 | cat >>e${EMULATION_NAME}.c <<EOF |
3bcf5557 AM |
1583 | {NULL, no_argument, NULL, 0} |
1584 | }; | |
1585 | ||
1586 | *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short)); | |
1587 | memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short)); | |
1588 | *longopts = (struct option *) | |
1589 | xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long)); | |
1590 | memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long)); | |
1591 | } | |
04925e1e | 1592 | |
3bcf5557 | 1593 | static bfd_boolean |
0c7a8e5a | 1594 | gld${EMULATION_NAME}_handle_option (int optc) |
e0ee487b | 1595 | { |
e0ee487b L |
1596 | switch (optc) |
1597 | { | |
1598 | default: | |
3bcf5557 | 1599 | return FALSE; |
6c1439be | 1600 | |
e0ee487b | 1601 | EOF |
e0ee487b L |
1602 | |
1603 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
1604 | cat >>e${EMULATION_NAME}.c <<EOF | |
6c1439be | 1605 | case OPTION_DISABLE_NEW_DTAGS: |
b34976b6 | 1606 | link_info.new_dtags = FALSE; |
6c1439be L |
1607 | break; |
1608 | ||
1609 | case OPTION_ENABLE_NEW_DTAGS: | |
b34976b6 | 1610 | link_info.new_dtags = TRUE; |
6c1439be L |
1611 | break; |
1612 | ||
65765700 | 1613 | case OPTION_EH_FRAME_HDR: |
b34976b6 | 1614 | link_info.eh_frame_hdr = TRUE; |
65765700 JJ |
1615 | break; |
1616 | ||
a1ab1d2a UD |
1617 | case OPTION_GROUP: |
1618 | link_info.flags_1 |= (bfd_vma) DF_1_GROUP; | |
1619 | /* Groups must be self-contained. */ | |
560e09e9 NC |
1620 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
1621 | link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR; | |
a1ab1d2a UD |
1622 | break; |
1623 | ||
e0ee487b L |
1624 | case 'z': |
1625 | if (strcmp (optarg, "initfirst") == 0) | |
1626 | link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST; | |
1627 | else if (strcmp (optarg, "interpose") == 0) | |
1628 | link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE; | |
1629 | else if (strcmp (optarg, "loadfltr") == 0) | |
1630 | link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR; | |
1631 | else if (strcmp (optarg, "nodefaultlib") == 0) | |
1632 | link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB; | |
1633 | else if (strcmp (optarg, "nodelete") == 0) | |
1634 | link_info.flags_1 |= (bfd_vma) DF_1_NODELETE; | |
1635 | else if (strcmp (optarg, "nodlopen") == 0) | |
1636 | link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN; | |
1637 | else if (strcmp (optarg, "nodump") == 0) | |
1638 | link_info.flags_1 |= (bfd_vma) DF_1_NODUMP; | |
1639 | else if (strcmp (optarg, "now") == 0) | |
1640 | { | |
1641 | link_info.flags |= (bfd_vma) DF_BIND_NOW; | |
1642 | link_info.flags_1 |= (bfd_vma) DF_1_NOW; | |
1643 | } | |
1644 | else if (strcmp (optarg, "origin") == 0) | |
1645 | { | |
1646 | link_info.flags |= (bfd_vma) DF_ORIGIN; | |
1647 | link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN; | |
1648 | } | |
a1ab1d2a | 1649 | else if (strcmp (optarg, "defs") == 0) |
560e09e9 | 1650 | link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR; |
aa713662 | 1651 | else if (strcmp (optarg, "muldefs") == 0) |
b34976b6 | 1652 | link_info.allow_multiple_definition = TRUE; |
db6751f2 | 1653 | else if (strcmp (optarg, "combreloc") == 0) |
b34976b6 | 1654 | link_info.combreloc = TRUE; |
db6751f2 | 1655 | else if (strcmp (optarg, "nocombreloc") == 0) |
b34976b6 | 1656 | link_info.combreloc = FALSE; |
8bd621d8 | 1657 | else if (strcmp (optarg, "nocopyreloc") == 0) |
0c7a8e5a | 1658 | link_info.nocopyreloc = TRUE; |
9ee5e499 JJ |
1659 | else if (strcmp (optarg, "execstack") == 0) |
1660 | { | |
1661 | link_info.execstack = TRUE; | |
1662 | link_info.noexecstack = FALSE; | |
1663 | } | |
1664 | else if (strcmp (optarg, "noexecstack") == 0) | |
1665 | { | |
1666 | link_info.noexecstack = TRUE; | |
1667 | link_info.execstack = FALSE; | |
1668 | } | |
e0ee487b | 1669 | /* What about the other Solaris -z options? FIXME. */ |
6c1439be | 1670 | break; |
e0ee487b L |
1671 | EOF |
1672 | fi | |
1673 | ||
1674 | if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then | |
1675 | cat >>e${EMULATION_NAME}.c <<EOF | |
1676 | $PARSE_AND_LIST_ARGS_CASES | |
1677 | EOF | |
1678 | fi | |
1679 | ||
e0ee487b L |
1680 | cat >>e${EMULATION_NAME}.c <<EOF |
1681 | } | |
1682 | ||
3bcf5557 | 1683 | return TRUE; |
e0ee487b L |
1684 | } |
1685 | ||
41392f03 | 1686 | EOF |
41392f03 | 1687 | |
4b209b22 | 1688 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
41392f03 AM |
1689 | cat >>e${EMULATION_NAME}.c <<EOF |
1690 | ||
e0ee487b | 1691 | static void |
0c7a8e5a | 1692 | gld${EMULATION_NAME}_list_options (FILE * file) |
e0ee487b L |
1693 | { |
1694 | EOF | |
e0ee487b L |
1695 | |
1696 | if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then | |
1697 | cat >>e${EMULATION_NAME}.c <<EOF | |
a1ab1d2a | 1698 | fprintf (file, _(" -Bgroup\t\tSelects group name lookup rules for DSO\n")); |
6c1439be L |
1699 | fprintf (file, _(" --disable-new-dtags\tDisable new dynamic tags\n")); |
1700 | fprintf (file, _(" --enable-new-dtags\tEnable new dynamic tags\n")); | |
65765700 | 1701 | fprintf (file, _(" --eh-frame-hdr\tCreate .eh_frame_hdr section\n")); |
ec38dd05 | 1702 | fprintf (file, _(" -z combreloc\t\tMerge dynamic relocs into one section and sort\n")); |
560e09e9 | 1703 | fprintf (file, _(" -z defs\t\tReport unresolved symbols in object files.\n")); |
9ee5e499 | 1704 | fprintf (file, _(" -z execstack\t\tMark executable as requiring executable stack\n")); |
f813923c HPN |
1705 | fprintf (file, _(" -z initfirst\t\tMark DSO to be initialized first at runtime\n")); |
1706 | fprintf (file, _(" -z interpose\t\tMark object to interpose all DSOs but executable\n")); | |
e0ee487b | 1707 | fprintf (file, _(" -z loadfltr\t\tMark object requiring immediate process\n")); |
aa713662 | 1708 | fprintf (file, _(" -z muldefs\t\tAllow multiple definitions\n")); |
146e7110 AM |
1709 | fprintf (file, _(" -z nocombreloc\tDon't merge dynamic relocs into one section\n")); |
1710 | fprintf (file, _(" -z nocopyreloc\tDon't create copy relocs\n")); | |
e0ee487b L |
1711 | fprintf (file, _(" -z nodefaultlib\tMark object not to use default search paths\n")); |
1712 | fprintf (file, _(" -z nodelete\t\tMark DSO non-deletable at runtime\n")); | |
f813923c HPN |
1713 | fprintf (file, _(" -z nodlopen\t\tMark DSO not available to dlopen\n")); |
1714 | fprintf (file, _(" -z nodump\t\tMark DSO not available to dldump\n")); | |
10b4329d | 1715 | fprintf (file, _(" -z noexecstack\tMark executable as not requiring executable stack\n")); |
e0ee487b | 1716 | fprintf (file, _(" -z now\t\tMark object non-lazy runtime binding\n")); |
73e87d70 | 1717 | fprintf (file, _(" -z origin\t\tMark object requiring immediate \$ORIGIN processing\n\t\t\t at runtime\n")); |
19e3be22 | 1718 | fprintf (file, _(" -z KEYWORD\t\tIgnored for Solaris compatibility\n")); |
e0ee487b L |
1719 | EOF |
1720 | fi | |
1721 | ||
1722 | if test -n "$PARSE_AND_LIST_OPTIONS" ; then | |
1723 | cat >>e${EMULATION_NAME}.c <<EOF | |
1724 | $PARSE_AND_LIST_OPTIONS | |
1725 | EOF | |
1726 | fi | |
1727 | ||
e0ee487b L |
1728 | cat >>e${EMULATION_NAME}.c <<EOF |
1729 | } | |
1730 | EOF | |
e0ee487b L |
1731 | |
1732 | if test -n "$PARSE_AND_LIST_EPILOGUE" ; then | |
1733 | cat >>e${EMULATION_NAME}.c <<EOF | |
1734 | $PARSE_AND_LIST_EPILOGUE | |
1735 | EOF | |
1736 | fi | |
41392f03 AM |
1737 | fi |
1738 | else | |
41392f03 | 1739 | cat >>e${EMULATION_NAME}.c <<EOF |
3bcf5557 AM |
1740 | #define gld${EMULATION_NAME}_add_options NULL |
1741 | #define gld${EMULATION_NAME}_handle_option NULL | |
41392f03 | 1742 | EOF |
4b209b22 | 1743 | if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then |
41392f03 | 1744 | cat >>e${EMULATION_NAME}.c <<EOF |
4b209b22 | 1745 | #define gld${EMULATION_NAME}_list_options NULL |
41392f03 AM |
1746 | EOF |
1747 | fi | |
1748 | fi | |
e0ee487b | 1749 | |
252b5132 RH |
1750 | cat >>e${EMULATION_NAME}.c <<EOF |
1751 | ||
60bcf0fa | 1752 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = |
252b5132 | 1753 | { |
41392f03 AM |
1754 | ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse}, |
1755 | ${LDEMUL_SYSLIB-syslib_default}, | |
1756 | ${LDEMUL_HLL-hll_default}, | |
1757 | ${LDEMUL_AFTER_PARSE-after_parse_default}, | |
1758 | ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open}, | |
1759 | ${LDEMUL_AFTER_ALLOCATION-after_allocation_default}, | |
1760 | ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default}, | |
1761 | ${LDEMUL_CHOOSE_TARGET-ldemul_default_target}, | |
1762 | ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation}, | |
1763 | ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script}, | |
252b5132 RH |
1764 | "${EMULATION_NAME}", |
1765 | "${OUTPUT_FORMAT}", | |
c56feb2b | 1766 | ${LDEMUL_FINISH-gld${EMULATION_NAME}_finish}, |
41392f03 AM |
1767 | ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL}, |
1768 | ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-gld${EMULATION_NAME}_open_dynamic_archive}, | |
1769 | ${LDEMUL_PLACE_ORPHAN-gld${EMULATION_NAME}_place_orphan}, | |
1770 | ${LDEMUL_SET_SYMBOLS-NULL}, | |
3bcf5557 AM |
1771 | ${LDEMUL_PARSE_ARGS-NULL}, |
1772 | gld${EMULATION_NAME}_add_options, | |
1773 | gld${EMULATION_NAME}_handle_option, | |
41392f03 | 1774 | ${LDEMUL_UNRECOGNIZED_FILE-NULL}, |
4b209b22 | 1775 | ${LDEMUL_LIST_OPTIONS-gld${EMULATION_NAME}_list_options}, |
4a43e768 | 1776 | ${LDEMUL_RECOGNIZED_FILE-gld${EMULATION_NAME}_load_symbols}, |
41392f03 | 1777 | ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL}, |
fac1652d | 1778 | ${LDEMUL_NEW_VERS_PATTERN-NULL} |
252b5132 RH |
1779 | }; |
1780 | EOF |