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