Commit | Line | Data |
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2a9fa50c ILT |
1 | # This shell script emits a C file. -*- C -*- |
2 | # It does some substitutions. | |
3 | cat >e${EMULATION_NAME}.c <<EOF | |
4 | /* This file is is generated by a shell script. DO NOT EDIT! */ | |
5 | ||
6 | /* 32 bit ELF emulation code for ${EMULATION_NAME} | |
5f3548d6 | 7 | Copyright (C) 1991, 1993, 1994, 1995 Free Software Foundation, Inc. |
2a9fa50c ILT |
8 | Written by Steve Chamberlain <sac@cygnus.com> |
9 | ELF support by Ian Lance Taylor <ian@cygnus.com> | |
10 | ||
11 | This file is part of GLD, the Gnu Linker. | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
26 | ||
27 | #define TARGET_IS_${EMULATION_NAME} | |
28 | ||
29 | #include "bfd.h" | |
30 | #include "sysdep.h" | |
5efddb2e ILT |
31 | |
32 | #include <ctype.h> | |
33 | ||
2a9fa50c ILT |
34 | #include "bfdlink.h" |
35 | ||
36 | #include "ld.h" | |
37 | #include "config.h" | |
38 | #include "ldmain.h" | |
39 | #include "ldemul.h" | |
40 | #include "ldfile.h" | |
41 | #include "ldmisc.h" | |
42 | #include "ldexp.h" | |
43 | #include "ldlang.h" | |
5efddb2e | 44 | #include "ldgram.h" |
2a9fa50c ILT |
45 | |
46 | static void gld${EMULATION_NAME}_before_parse PARAMS ((void)); | |
5efddb2e ILT |
47 | static boolean gld${EMULATION_NAME}_open_dynamic_archive |
48 | PARAMS ((const char *, lang_input_statement_type *)); | |
7523be35 ILT |
49 | static void gld${EMULATION_NAME}_after_open PARAMS ((void)); |
50 | static void gld${EMULATION_NAME}_check_needed | |
51 | PARAMS ((lang_input_statement_type *)); | |
52 | static boolean gld${EMULATION_NAME}_search_needed | |
53 | PARAMS ((const char *, const char *)); | |
54 | static boolean gld${EMULATION_NAME}_try_needed PARAMS ((const char *)); | |
2a9fa50c ILT |
55 | static void gld${EMULATION_NAME}_before_allocation PARAMS ((void)); |
56 | static void gld${EMULATION_NAME}_find_statement_assignment | |
57 | PARAMS ((lang_statement_union_type *)); | |
58 | static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *)); | |
5efddb2e ILT |
59 | static boolean gld${EMULATION_NAME}_place_orphan |
60 | PARAMS ((lang_input_statement_type *, asection *)); | |
61 | static void gld${EMULATION_NAME}_place_section | |
62 | PARAMS ((lang_statement_union_type *)); | |
2a9fa50c ILT |
63 | static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile)); |
64 | ||
65 | static void | |
66 | gld${EMULATION_NAME}_before_parse() | |
67 | { | |
68 | ldfile_output_architecture = bfd_arch_${ARCH}; | |
5efddb2e ILT |
69 | config.dynamic_link = ${DYNAMIC_LINK-true}; |
70 | } | |
71 | ||
72 | /* Try to open a dynamic archive. This is where we know that ELF | |
73 | dynamic libraries have an extension of .so. */ | |
74 | ||
75 | static boolean | |
76 | gld${EMULATION_NAME}_open_dynamic_archive (arch, entry) | |
77 | const char *arch; | |
78 | lang_input_statement_type *entry; | |
79 | { | |
80 | const char *filename; | |
81 | ||
82 | filename = entry->filename; | |
83 | ||
84 | if (! ldfile_open_file_search (arch, entry, "lib", ".so")) | |
85 | return false; | |
86 | ||
87 | /* We have found a dynamic object to include in the link. The ELF | |
88 | backend linker will create a DT_NEEDED entry in the .dynamic | |
89 | section naming this file. If this file includes a DT_SONAME | |
90 | entry, it will be used. Otherwise, the ELF linker will just use | |
91 | the name of the file. For an archive found by searching, like | |
92 | this one, the DT_NEEDED entry should consist of just the name of | |
93 | the file, without the path information used to find it. Note | |
94 | that we only need to do this if we have a dynamic object; an | |
95 | archive will never be referenced by a DT_NEEDED entry. | |
96 | ||
97 | FIXME: This approach--using bfd_elf_set_dt_needed_name--is not | |
98 | very pretty. I haven't been able to think of anything that is | |
99 | pretty, though. */ | |
100 | if (bfd_check_format (entry->the_bfd, bfd_object) | |
101 | && (entry->the_bfd->flags & DYNAMIC) != 0) | |
102 | { | |
103 | char *needed_name; | |
104 | ||
105 | ASSERT (entry->is_archive && entry->search_dirs_flag); | |
106 | needed_name = (char *) xmalloc (strlen (filename) | |
107 | + strlen (arch) | |
108 | + sizeof "lib.so"); | |
109 | sprintf (needed_name, "lib%s%s.so", filename, arch); | |
110 | bfd_elf_set_dt_needed_name (entry->the_bfd, needed_name); | |
111 | } | |
112 | ||
113 | return true; | |
2a9fa50c ILT |
114 | } |
115 | ||
7523be35 ILT |
116 | /* These variables are required to pass information back and forth |
117 | between after_open and check_needed. */ | |
118 | ||
119 | static struct bfd_elf_link_needed_list *global_needed; | |
120 | static boolean global_found; | |
121 | ||
122 | /* This is called after all the input files have been opened. */ | |
123 | ||
124 | static void | |
125 | gld${EMULATION_NAME}_after_open () | |
126 | { | |
127 | struct bfd_elf_link_needed_list *needed, *l; | |
128 | ||
129 | /* Get the list of files which appear in DT_NEEDED entries in | |
130 | dynamic objects included in the link (often there will be none). | |
131 | For each such file, we want to track down the corresponding | |
132 | library, and include the symbol table in the link. This is what | |
133 | the runtime dynamic linker will do. Tracking the files down here | |
134 | permits one dynamic object to include another without requiring | |
135 | special action by the person doing the link. Note that the | |
136 | needed list can actually grow while we are stepping through this | |
137 | loop. */ | |
138 | needed = bfd_elf_get_needed_list (output_bfd, &link_info); | |
139 | for (l = needed; l != NULL; l = l->next) | |
140 | { | |
141 | struct bfd_elf_link_needed_list *ll; | |
142 | const char *lib_path; | |
143 | size_t len; | |
144 | search_dirs_type *search; | |
145 | ||
146 | /* If we've already seen this file, skip it. */ | |
147 | for (ll = needed; ll != l; ll = ll->next) | |
148 | if (strcmp (ll->name, l->name) == 0) | |
149 | break; | |
150 | if (ll != l) | |
151 | continue; | |
152 | ||
153 | /* See if this file was included in the link explicitly. */ | |
154 | global_needed = l; | |
155 | global_found = false; | |
156 | lang_for_each_input_file (gld${EMULATION_NAME}_check_needed); | |
157 | if (global_found) | |
158 | continue; | |
159 | ||
160 | /* We need to find this file and include the symbol table. We | |
161 | want to search for the file in the same way that the dynamic | |
162 | linker will search. That means that we want to use rpath, | |
163 | then the environment variable LD_LIBRARY_PATH, then the | |
164 | linker script LIB_SEARCH_DIRS. We do not search using the -L | |
165 | arguments. */ | |
166 | if (gld${EMULATION_NAME}_search_needed (command_line.rpath, l->name)) | |
167 | continue; | |
168 | lib_path = (const char *) getenv ("LD_LIBRARY_PATH"); | |
169 | if (gld${EMULATION_NAME}_search_needed (lib_path, l->name)) | |
170 | continue; | |
171 | len = strlen (l->name); | |
172 | for (search = search_head; search != NULL; search = search->next) | |
173 | { | |
174 | char *filename; | |
175 | ||
176 | if (search->cmdline) | |
177 | continue; | |
178 | filename = (char *) xmalloc (strlen (search->name) + len + 2); | |
179 | sprintf (filename, "%s/%s", search->name, l->name); | |
180 | if (gld${EMULATION_NAME}_try_needed (filename)) | |
181 | break; | |
182 | free (filename); | |
183 | } | |
184 | if (search != NULL) | |
185 | continue; | |
186 | ||
187 | einfo ("%P: warning: %s, needed by %B, not found\n", | |
188 | l->name, l->by); | |
189 | } | |
190 | } | |
191 | ||
192 | /* Search for a needed file in a path. */ | |
193 | ||
194 | static boolean | |
195 | gld${EMULATION_NAME}_search_needed (path, name) | |
196 | const char *path; | |
197 | const char *name; | |
198 | { | |
199 | const char *s; | |
200 | size_t len; | |
201 | ||
202 | if (path == NULL || *path == '\0') | |
203 | return false; | |
204 | len = strlen (name); | |
205 | while (1) | |
206 | { | |
207 | char *filename, *sset; | |
208 | ||
209 | s = strchr (path, ':'); | |
210 | if (s == NULL) | |
211 | s = path + strlen (path); | |
212 | ||
213 | filename = (char *) xmalloc (s - path + len + 2); | |
214 | if (s == path) | |
215 | sset = filename; | |
216 | else | |
217 | { | |
218 | memcpy (filename, path, s - path); | |
219 | filename[s - path] = '/'; | |
220 | sset = filename + (s - path) + 1; | |
221 | } | |
222 | strcpy (sset, name); | |
223 | ||
224 | if (gld${EMULATION_NAME}_try_needed (filename)) | |
225 | return true; | |
226 | ||
227 | free (filename); | |
228 | ||
229 | if (*s == '\0') | |
230 | break; | |
231 | path = s + 1; | |
232 | } | |
233 | ||
234 | return false; | |
235 | } | |
236 | ||
237 | /* This function is called for each possible name for a dynamic object | |
238 | named by a DT_NEEDED entry. */ | |
239 | ||
240 | static boolean | |
241 | gld${EMULATION_NAME}_try_needed (name) | |
242 | const char *name; | |
243 | { | |
244 | bfd *abfd; | |
245 | ||
246 | abfd = bfd_openr (name, bfd_get_target (output_bfd)); | |
247 | if (abfd == NULL) | |
248 | return false; | |
249 | if (! bfd_check_format (abfd, bfd_object)) | |
250 | { | |
251 | (void) bfd_close (abfd); | |
252 | return false; | |
253 | } | |
254 | if ((bfd_get_file_flags (abfd) & DYNAMIC) == 0) | |
255 | { | |
256 | (void) bfd_close (abfd); | |
257 | return false; | |
258 | } | |
259 | ||
260 | /* We've found a dynamic object matching the DT_NEEDED entry. */ | |
261 | ||
262 | /* Tell the ELF backend that don't want the output file to have a | |
263 | DT_NEEDED entry for this file. */ | |
264 | bfd_elf_set_dt_needed_name (abfd, ""); | |
265 | ||
266 | /* Add this file into the symbol table. */ | |
267 | if (! bfd_link_add_symbols (abfd, &link_info)) | |
268 | einfo ("%F%B: could not read symbols: %E\n", abfd); | |
269 | ||
270 | return true; | |
271 | } | |
272 | ||
273 | /* See if an input file matches a DT_NEEDED entry. */ | |
274 | ||
275 | static void | |
276 | gld${EMULATION_NAME}_check_needed (s) | |
277 | lang_input_statement_type *s; | |
278 | { | |
279 | if (s->filename != NULL | |
280 | && strcmp (s->filename, global_needed->name) == 0) | |
281 | global_found = true; | |
282 | } | |
283 | ||
2a9fa50c ILT |
284 | /* This is called after the sections have been attached to output |
285 | sections, but before any sizes or addresses have been set. */ | |
286 | ||
287 | static void | |
288 | gld${EMULATION_NAME}_before_allocation () | |
289 | { | |
7fb9ca5f ILT |
290 | asection *sinterp; |
291 | ||
2a9fa50c ILT |
292 | /* If we are going to make any variable assignments, we need to let |
293 | the ELF backend know about them in case the variables are | |
294 | referred to by dynamic objects. */ | |
295 | lang_for_each_statement (gld${EMULATION_NAME}_find_statement_assignment); | |
296 | ||
297 | /* Let the ELF backend work out the sizes of any sections required | |
298 | by dynamic linking. */ | |
5efddb2e ILT |
299 | if (! bfd_elf32_size_dynamic_sections (output_bfd, |
300 | command_line.soname, | |
301 | command_line.rpath, | |
302 | command_line.export_dynamic, | |
303 | &link_info, | |
7fb9ca5f | 304 | &sinterp)) |
2a9fa50c | 305 | einfo ("%P%F: failed to set dynamic section sizes: %E\n"); |
7fb9ca5f ILT |
306 | |
307 | /* Let the user override the dynamic linker we are using. */ | |
308 | if (command_line.interpreter != NULL | |
309 | && sinterp != NULL) | |
310 | { | |
311 | sinterp->contents = (bfd_byte *) command_line.interpreter; | |
312 | sinterp->_raw_size = strlen (command_line.interpreter) + 1; | |
313 | } | |
5f3548d6 ILT |
314 | |
315 | /* Look for any sections named .gnu.warning. As a GNU extensions, | |
316 | we treat such sections as containing warning messages. We print | |
317 | out the warning message, and then zero out the section size so | |
318 | that it does not get copied into the output file. */ | |
319 | ||
320 | { | |
321 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
322 | { | |
323 | asection *s; | |
324 | bfd_size_type sz; | |
325 | char *msg; | |
326 | boolean ret; | |
327 | ||
328 | if (is->just_syms_flag) | |
329 | continue; | |
330 | ||
331 | s = bfd_get_section_by_name (is->the_bfd, ".gnu.warning"); | |
332 | if (s == NULL) | |
333 | continue; | |
334 | ||
335 | sz = bfd_section_size (is->the_bfd, s); | |
336 | msg = xmalloc ((size_t) sz + 1); | |
337 | if (! bfd_get_section_contents (is->the_bfd, s, msg, (file_ptr) 0, sz)) | |
338 | einfo ("%F%B: Can't read contents of section .gnu.warning: %E\n", | |
339 | is->the_bfd); | |
340 | msg[sz] = '\0'; | |
341 | ret = link_info.callbacks->warning (&link_info, msg); | |
342 | ASSERT (ret); | |
343 | free (msg); | |
344 | ||
345 | /* Clobber the section size, so that we don't waste copying the | |
346 | warning into the output file. */ | |
347 | s->_raw_size = 0; | |
348 | } | |
349 | } | |
7523be35 ILT |
350 | |
351 | #if defined (TARGET_IS_elf32bmip) || defined (TARGET_IS_elf32lmip) | |
352 | /* For MIPS ELF the .reginfo section requires special handling. | |
353 | Each input section is 24 bytes, and the final output section must | |
354 | also be 24 bytes. We handle this by clobbering all but the first | |
355 | input section size to 0. The .reginfo section is handled | |
356 | specially by the backend code anyhow. */ | |
357 | { | |
358 | boolean found = false; | |
359 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
360 | { | |
361 | asection *s; | |
362 | ||
363 | if (is->just_syms_flag) | |
364 | continue; | |
365 | ||
366 | s = bfd_get_section_by_name (is->the_bfd, ".reginfo"); | |
367 | if (s == NULL) | |
368 | continue; | |
369 | ||
370 | if (! found) | |
371 | { | |
372 | found = true; | |
373 | continue; | |
374 | } | |
375 | ||
376 | s->_raw_size = 0; | |
377 | s->_cooked_size = 0; | |
378 | } | |
379 | } | |
380 | #endif | |
2a9fa50c ILT |
381 | } |
382 | ||
383 | /* This is called by the before_allocation routine via | |
384 | lang_for_each_statement. It locates any assignment statements, and | |
385 | tells the ELF backend about them, in case they are assignments to | |
386 | symbols which are referred to by dynamic objects. */ | |
387 | ||
388 | static void | |
389 | gld${EMULATION_NAME}_find_statement_assignment (s) | |
390 | lang_statement_union_type *s; | |
391 | { | |
392 | if (s->header.type == lang_assignment_statement_enum) | |
393 | gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp); | |
394 | } | |
395 | ||
396 | /* Look through an expression for an assignment statement. */ | |
397 | ||
398 | static void | |
399 | gld${EMULATION_NAME}_find_exp_assignment (exp) | |
400 | etree_type *exp; | |
401 | { | |
7158d2b1 ILT |
402 | struct bfd_link_hash_entry *h; |
403 | ||
2a9fa50c ILT |
404 | switch (exp->type.node_class) |
405 | { | |
7158d2b1 ILT |
406 | case etree_provide: |
407 | h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst, | |
408 | false, false, false); | |
409 | if (h == NULL) | |
410 | break; | |
411 | ||
412 | /* We call record_link_assignment even if the symbol is defined. | |
413 | This is because if it is defined by a dynamic object, we | |
414 | actually want to use the value defined by the linker script, | |
415 | not the value from the dynamic object (because we are setting | |
416 | symbols like etext). If the symbol is defined by a regular | |
417 | object, then, as it happens, calling record_link_assignment | |
418 | will do no harm. */ | |
419 | ||
420 | /* Fall through. */ | |
2a9fa50c ILT |
421 | case etree_assign: |
422 | if (strcmp (exp->assign.dst, ".") != 0) | |
423 | { | |
7158d2b1 ILT |
424 | if (! (bfd_elf32_record_link_assignment |
425 | (output_bfd, &link_info, exp->assign.dst, | |
426 | exp->type.node_class == etree_provide ? true : false))) | |
2a9fa50c ILT |
427 | einfo ("%P%F: failed to record assignment to %s: %E\n", |
428 | exp->assign.dst); | |
429 | } | |
430 | gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src); | |
431 | break; | |
432 | ||
433 | case etree_binary: | |
434 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs); | |
435 | gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs); | |
436 | break; | |
437 | ||
438 | case etree_trinary: | |
439 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
440 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs); | |
441 | gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs); | |
442 | break; | |
443 | ||
444 | case etree_unary: | |
445 | gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child); | |
446 | break; | |
447 | ||
448 | default: | |
449 | break; | |
450 | } | |
451 | } | |
452 | ||
5efddb2e ILT |
453 | /* Place an orphan section. We use this to put random SHF_ALLOC |
454 | sections in the right segment. */ | |
455 | ||
456 | static asection *hold_section; | |
457 | static lang_output_section_statement_type *hold_use; | |
458 | static lang_output_section_statement_type *hold_text; | |
459 | static lang_output_section_statement_type *hold_data; | |
460 | static lang_output_section_statement_type *hold_bss; | |
7523be35 | 461 | static lang_output_section_statement_type *hold_rel; |
5efddb2e ILT |
462 | |
463 | /*ARGSUSED*/ | |
464 | static boolean | |
465 | gld${EMULATION_NAME}_place_orphan (file, s) | |
466 | lang_input_statement_type *file; | |
467 | asection *s; | |
468 | { | |
469 | lang_output_section_statement_type *place; | |
470 | asection *snew, **pps; | |
471 | lang_statement_list_type *old; | |
472 | lang_statement_list_type add; | |
473 | etree_type *address; | |
474 | const char *secname, *ps; | |
475 | lang_output_section_statement_type *os; | |
476 | ||
477 | if ((s->flags & SEC_ALLOC) == 0) | |
478 | return false; | |
479 | ||
480 | /* Look through the script to see where to place this section. */ | |
481 | hold_section = s; | |
482 | hold_use = NULL; | |
483 | lang_for_each_statement (gld${EMULATION_NAME}_place_section); | |
484 | ||
485 | if (hold_use != NULL) | |
486 | { | |
487 | /* We have already placed a section with this name. */ | |
488 | wild_doit (&hold_use->children, s, hold_use, file); | |
489 | return true; | |
490 | } | |
491 | ||
7523be35 ILT |
492 | secname = bfd_get_section_name (s->owner, s); |
493 | ||
5efddb2e | 494 | /* Decide which segment the section should go in based on the |
7523be35 | 495 | section name and section flags. */ |
5efddb2e ILT |
496 | place = NULL; |
497 | if ((s->flags & SEC_HAS_CONTENTS) == 0 | |
498 | && hold_bss != NULL) | |
499 | place = hold_bss; | |
500 | else if ((s->flags & SEC_READONLY) == 0 | |
501 | && hold_data != NULL) | |
502 | place = hold_data; | |
7523be35 ILT |
503 | else if (strncmp (secname, ".rel", 4) == 0 |
504 | && hold_rel != NULL) | |
505 | place = hold_rel; | |
5efddb2e ILT |
506 | else if ((s->flags & SEC_READONLY) != 0 |
507 | && hold_text != NULL) | |
508 | place = hold_text; | |
509 | if (place == NULL) | |
510 | return false; | |
511 | ||
5efddb2e | 512 | /* Create the section in the output file, and put it in the right |
7523be35 | 513 | place. This shuffling is to make the output file look neater. */ |
5efddb2e ILT |
514 | snew = bfd_make_section (output_bfd, secname); |
515 | if (snew == NULL) | |
516 | einfo ("%P%F: output format %s cannot represent section called %s\n", | |
517 | output_bfd->xvec->name, secname); | |
7523be35 ILT |
518 | if (place->bfd_section != NULL) |
519 | { | |
520 | for (pps = &output_bfd->sections; *pps != snew; pps = &(*pps)->next) | |
521 | ; | |
522 | *pps = snew->next; | |
523 | snew->next = place->bfd_section->next; | |
524 | place->bfd_section->next = snew; | |
525 | } | |
5efddb2e ILT |
526 | |
527 | /* Start building a list of statements for this section. */ | |
528 | old = stat_ptr; | |
529 | stat_ptr = &add; | |
530 | lang_list_init (stat_ptr); | |
531 | ||
532 | /* If the name of the section is representable in C, then create | |
533 | symbols to mark the start and the end of the section. */ | |
534 | for (ps = secname; *ps != '\0'; ps++) | |
535 | if (! isalnum (*ps) && *ps != '_') | |
536 | break; | |
537 | if (*ps == '\0' && config.build_constructors) | |
538 | { | |
539 | char *symname; | |
540 | ||
541 | symname = (char *) xmalloc (ps - secname + sizeof "__start_"); | |
542 | sprintf (symname, "__start_%s", secname); | |
543 | lang_add_assignment (exp_assop ('=', symname, | |
544 | exp_nameop (NAME, "."))); | |
545 | } | |
546 | ||
547 | if (! link_info.relocateable) | |
548 | address = NULL; | |
549 | else | |
550 | address = exp_intop ((bfd_vma) 0); | |
551 | ||
552 | lang_enter_output_section_statement (secname, address, 0, | |
553 | (bfd_vma) 0, | |
554 | (etree_type *) NULL, | |
555 | (etree_type *) NULL, | |
556 | (etree_type *) NULL); | |
557 | ||
558 | os = lang_output_section_statement_lookup (secname); | |
559 | wild_doit (&os->children, s, os, file); | |
560 | ||
561 | lang_leave_output_section_statement ((bfd_vma) 0, "*default*"); | |
562 | stat_ptr = &add; | |
563 | ||
564 | if (*ps == '\0' && config.build_constructors) | |
565 | { | |
566 | char *symname; | |
567 | ||
568 | symname = (char *) xmalloc (ps - secname + sizeof "__stop_"); | |
569 | sprintf (symname, "__stop_%s", secname); | |
570 | lang_add_assignment (exp_assop ('=', symname, | |
571 | exp_nameop (NAME, "."))); | |
572 | } | |
573 | ||
574 | /* Now stick the new statement list right after PLACE. */ | |
575 | *add.tail = place->header.next; | |
576 | place->header.next = add.head; | |
577 | ||
578 | stat_ptr = old; | |
579 | ||
580 | return true; | |
581 | } | |
582 | ||
583 | static void | |
584 | gld${EMULATION_NAME}_place_section (s) | |
585 | lang_statement_union_type *s; | |
586 | { | |
587 | lang_output_section_statement_type *os; | |
588 | ||
589 | if (s->header.type != lang_output_section_statement_enum) | |
590 | return; | |
591 | ||
592 | os = &s->output_section_statement; | |
593 | ||
594 | if (strcmp (os->name, hold_section->name) == 0) | |
595 | hold_use = os; | |
596 | ||
597 | if (strcmp (os->name, ".text") == 0) | |
598 | hold_text = os; | |
599 | else if (strcmp (os->name, ".data") == 0) | |
600 | hold_data = os; | |
601 | else if (strcmp (os->name, ".bss") == 0) | |
602 | hold_bss = os; | |
7523be35 ILT |
603 | else if (hold_rel == NULL |
604 | && strncmp (os->name, ".rel", 4) == 0) | |
605 | hold_rel = os; | |
5efddb2e ILT |
606 | } |
607 | ||
2a9fa50c ILT |
608 | static char * |
609 | gld${EMULATION_NAME}_get_script(isfile) | |
610 | int *isfile; | |
611 | EOF | |
612 | ||
613 | if test -n "$COMPILE_IN" | |
614 | then | |
615 | # Scripts compiled in. | |
616 | ||
617 | # sed commands to quote an ld script as a C string. | |
618 | sc='s/["\\]/\\&/g | |
619 | s/$/\\n\\/ | |
620 | 1s/^/"/ | |
621 | $s/$/n"/ | |
622 | ' | |
623 | ||
624 | cat >>e${EMULATION_NAME}.c <<EOF | |
625 | { | |
626 | *isfile = 0; | |
627 | ||
628 | if (link_info.relocateable == true && config.build_constructors == true) | |
629 | return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`; | |
630 | else if (link_info.relocateable == true) | |
631 | return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`; | |
632 | else if (!config.text_read_only) | |
633 | return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`; | |
634 | else if (!config.magic_demand_paged) | |
635 | return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`; | |
5efddb2e ILT |
636 | else if (link_info.shared) |
637 | return `sed "$sc" ldscripts/${EMULATION_NAME}.xs`; | |
2a9fa50c ILT |
638 | else |
639 | return `sed "$sc" ldscripts/${EMULATION_NAME}.x`; | |
640 | } | |
641 | EOF | |
642 | ||
643 | else | |
644 | # Scripts read from the filesystem. | |
645 | ||
646 | cat >>e${EMULATION_NAME}.c <<EOF | |
647 | { | |
648 | *isfile = 1; | |
649 | ||
650 | if (link_info.relocateable == true && config.build_constructors == true) | |
651 | return "ldscripts/${EMULATION_NAME}.xu"; | |
652 | else if (link_info.relocateable == true) | |
653 | return "ldscripts/${EMULATION_NAME}.xr"; | |
654 | else if (!config.text_read_only) | |
655 | return "ldscripts/${EMULATION_NAME}.xbn"; | |
656 | else if (!config.magic_demand_paged) | |
657 | return "ldscripts/${EMULATION_NAME}.xn"; | |
5efddb2e ILT |
658 | else if (link_info.shared) |
659 | return "ldscripts/${EMULATION_NAME}.xs"; | |
2a9fa50c ILT |
660 | else |
661 | return "ldscripts/${EMULATION_NAME}.x"; | |
662 | } | |
663 | EOF | |
664 | ||
665 | fi | |
666 | ||
667 | cat >>e${EMULATION_NAME}.c <<EOF | |
668 | ||
669 | struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation = | |
670 | { | |
671 | gld${EMULATION_NAME}_before_parse, | |
672 | syslib_default, | |
673 | hll_default, | |
674 | after_parse_default, | |
7523be35 | 675 | gld${EMULATION_NAME}_after_open, |
2a9fa50c ILT |
676 | after_allocation_default, |
677 | set_output_arch_default, | |
678 | ldemul_default_target, | |
679 | gld${EMULATION_NAME}_before_allocation, | |
680 | gld${EMULATION_NAME}_get_script, | |
681 | "${EMULATION_NAME}", | |
5efddb2e ILT |
682 | "${OUTPUT_FORMAT}", |
683 | NULL, | |
684 | NULL, | |
685 | gld${EMULATION_NAME}_open_dynamic_archive, | |
686 | gld${EMULATION_NAME}_place_orphan | |
2a9fa50c ILT |
687 | }; |
688 | EOF |