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