Commit | Line | Data |
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1f808cd5 | 1 | # This shell script emits a C file. -*- C -*- |
927be08e | 2 | # Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
74f0fb50 | 3 | # Free Software Foundation, Inc. |
1f808cd5 | 4 | # |
f96b4a7b | 5 | # This file is part of the GNU Binutils. |
1f808cd5 AM |
6 | # |
7 | # This program is free software; you can redistribute it and/or modify | |
8 | # it under the terms of the GNU General Public License as published by | |
f96b4a7b | 9 | # the Free Software Foundation; either version 3 of the License, or |
1f808cd5 AM |
10 | # (at your option) any later version. |
11 | # | |
12 | # This program is distributed in the hope that it will be useful, | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | # GNU General Public License for more details. | |
16 | # | |
17 | # You should have received a copy of the GNU General Public License | |
18 | # along with this program; if not, write to the Free Software | |
f96b4a7b NC |
19 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | # MA 02110-1301, USA. | |
1f808cd5 AM |
21 | # |
22 | ||
23 | # This file is sourced from elf32.em, and defines extra powerpc64-elf | |
24 | # specific routines. | |
25 | # | |
92b93329 | 26 | fragment <<EOF |
1f808cd5 | 27 | |
9c1d81c1 | 28 | #include "ldctor.h" |
805fc799 | 29 | #include "libbfd.h" |
83490352 | 30 | #include "elf-bfd.h" |
1f808cd5 AM |
31 | #include "elf64-ppc.h" |
32 | ||
9c1d81c1 AM |
33 | /* Fake input file for stubs. */ |
34 | static lang_input_statement_type *stub_file; | |
68f8ff14 | 35 | static int stub_added = 0; |
9c1d81c1 | 36 | |
deb04cdb AM |
37 | /* Whether we need to call ppc_layout_sections_again. */ |
38 | static int need_laying_out = 0; | |
39 | ||
9c1d81c1 AM |
40 | /* Maximum size of a group of input sections that can be handled by |
41 | one stub section. A value of +/-1 indicates the bfd back-end | |
42 | should use a suitable default size. */ | |
43 | static bfd_signed_vma group_size = 1; | |
44 | ||
fac1652d AM |
45 | /* Whether to add ".foo" entries for each "foo" in a version script. */ |
46 | static int dotsyms = 1; | |
47 | ||
e5096e3f | 48 | /* Whether to run tls optimization. */ |
c5614fa4 | 49 | static int no_tls_opt = 0; |
a7f2871e | 50 | static int no_tls_get_addr_opt = 0; |
c5614fa4 AM |
51 | |
52 | /* Whether to run opd optimization. */ | |
53 | static int no_opd_opt = 0; | |
54 | ||
55 | /* Whether to run toc optimization. */ | |
56 | static int no_toc_opt = 0; | |
e5096e3f | 57 | |
4c52953f AM |
58 | /* Whether to allow multiple toc sections. */ |
59 | static int no_multi_toc = 0; | |
60 | ||
d43d0b53 AM |
61 | /* Whether to sort input toc and got sections. */ |
62 | static int no_toc_sort = 0; | |
63 | ||
0b9a4d73 | 64 | /* Whether to emit symbols for stubs. */ |
b02c4cfa | 65 | static int emit_stub_syms = -1; |
0b9a4d73 AM |
66 | |
67 | static asection *toc_section = 0; | |
68 | ||
3f764659 JJ |
69 | /* Whether to canonicalize .opd so that there are no overlapping |
70 | .opd entries. */ | |
71 | static int non_overlapping_opd = 0; | |
9c1d81c1 AM |
72 | |
73 | /* This is called before the input files are opened. We create a new | |
74 | fake input file to hold the stub sections. */ | |
75 | ||
76 | static void | |
7d8a3a28 | 77 | ppc_create_output_section_statements (void) |
9c1d81c1 | 78 | { |
5503fea1 | 79 | if (!(bfd_get_flavour (link_info.output_bfd) == bfd_target_elf_flavour |
4dfe6ac6 | 80 | && elf_object_id (link_info.output_bfd) == PPC64_ELF_DATA)) |
a015f5ec AM |
81 | return; |
82 | ||
b9cf773d AM |
83 | link_info.wrap_char = '.'; |
84 | ||
9c1d81c1 AM |
85 | stub_file = lang_add_input_file ("linker stubs", |
86 | lang_input_file_is_fake_enum, | |
87 | NULL); | |
f13a99db | 88 | stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd); |
9c1d81c1 AM |
89 | if (stub_file->the_bfd == NULL |
90 | || !bfd_set_arch_mach (stub_file->the_bfd, | |
f13a99db AM |
91 | bfd_get_arch (link_info.output_bfd), |
92 | bfd_get_mach (link_info.output_bfd))) | |
9c1d81c1 | 93 | { |
92b7a70f | 94 | einfo ("%F%P: can not create BFD %E\n"); |
9c1d81c1 AM |
95 | return; |
96 | } | |
97 | ||
d457dcf6 | 98 | stub_file->the_bfd->flags |= BFD_LINKER_CREATED; |
9c1d81c1 | 99 | ldlang_add_file (stub_file); |
68f8ff14 | 100 | ppc64_elf_init_stub_bfd (stub_file->the_bfd, &link_info); |
9c1d81c1 AM |
101 | } |
102 | ||
d43d0b53 AM |
103 | /* Move the input section statement at *U which happens to be on LIST |
104 | to be just before *TO. */ | |
105 | ||
106 | static void | |
107 | move_input_section (lang_statement_list_type *list, | |
108 | lang_statement_union_type **u, | |
109 | lang_statement_union_type **to) | |
110 | { | |
111 | lang_statement_union_type *s = *u; | |
112 | asection *i = s->input_section.section; | |
113 | asection *p, *n; | |
114 | ||
115 | /* Snip the input section from the statement list. If it was the | |
116 | last statement, fix the list tail pointer. */ | |
117 | *u = s->header.next; | |
118 | if (*u == NULL) | |
119 | list->tail = u; | |
120 | /* Add it back in the new position. */ | |
121 | s->header.next = *to; | |
122 | *to = s; | |
123 | if (list->tail == to) | |
124 | list->tail = &s->header.next; | |
125 | ||
126 | /* Trim I off the bfd map_head/map_tail doubly linked lists. */ | |
127 | n = i->map_head.s; | |
128 | p = i->map_tail.s; | |
129 | (p != NULL ? p : i->output_section)->map_head.s = n; | |
130 | (n != NULL ? n : i->output_section)->map_tail.s = p; | |
131 | ||
132 | /* Add I back on in its new position. */ | |
133 | if (s->header.next->header.type == lang_input_section_enum) | |
134 | { | |
135 | n = s->header.next->input_section.section; | |
136 | p = n->map_tail.s; | |
137 | } | |
138 | else | |
139 | { | |
140 | /* If the next statement is not an input section statement then | |
141 | TO must point at the previous input section statement | |
142 | header.next field. */ | |
143 | lang_input_section_type *prev = (lang_input_section_type *) | |
144 | ((char *) to - offsetof (lang_statement_union_type, header.next)); | |
145 | ||
146 | ASSERT (prev->header.type == lang_input_section_enum); | |
147 | p = prev->section; | |
148 | n = p->map_head.s; | |
149 | } | |
150 | i->map_head.s = n; | |
151 | i->map_tail.s = p; | |
152 | (p != NULL ? p : i->output_section)->map_head.s = i; | |
153 | (n != NULL ? n : i->output_section)->map_tail.s = i; | |
154 | } | |
155 | ||
156 | /* Sort input section statements in the linker script tree rooted at | |
157 | LIST so that those whose owning bfd happens to have a section | |
158 | called .init or .fini are placed first. Place any TOC sections | |
159 | referenced by small TOC relocs next, with TOC sections referenced | |
160 | only by bigtoc relocs last. */ | |
161 | ||
162 | static void | |
163 | sort_toc_sections (lang_statement_list_type *list, | |
164 | lang_statement_union_type **ini, | |
165 | lang_statement_union_type **small) | |
166 | { | |
167 | lang_statement_union_type *s, **u; | |
168 | asection *i; | |
169 | ||
170 | u = &list->head; | |
171 | while ((s = *u) != NULL) | |
172 | { | |
173 | switch (s->header.type) | |
174 | { | |
175 | case lang_wild_statement_enum: | |
176 | sort_toc_sections (&s->wild_statement.children, ini, small); | |
177 | break; | |
178 | ||
179 | case lang_group_statement_enum: | |
180 | sort_toc_sections (&s->group_statement.children, ini, small); | |
181 | break; | |
182 | ||
183 | case lang_input_section_enum: | |
184 | i = s->input_section.section; | |
185 | /* Leave the stub_file .got where it is. We put the .got | |
186 | header there. */ | |
187 | if (i->owner == stub_file->the_bfd) | |
188 | break; | |
189 | if (bfd_get_section_by_name (i->owner, ".init") != NULL | |
190 | || bfd_get_section_by_name (i->owner, ".fini") != NULL) | |
191 | { | |
192 | if (ini != NULL && *ini != s) | |
193 | { | |
194 | move_input_section (list, u, ini); | |
195 | if (small == ini) | |
196 | small = &s->header.next; | |
197 | ini = &s->header.next; | |
198 | continue; | |
199 | } | |
200 | if (small == ini) | |
201 | small = &s->header.next; | |
202 | ini = &s->header.next; | |
203 | break; | |
204 | } | |
205 | else if (ini == NULL) | |
206 | ini = u; | |
207 | ||
208 | if (ppc64_elf_has_small_toc_reloc (i)) | |
209 | { | |
210 | if (small != NULL && *small != s) | |
211 | { | |
212 | move_input_section (list, u, small); | |
213 | small = &s->header.next; | |
214 | continue; | |
215 | } | |
216 | small = &s->header.next; | |
217 | } | |
218 | else if (small == NULL) | |
219 | small = u; | |
220 | break; | |
221 | ||
222 | default: | |
223 | break; | |
224 | } | |
225 | u = &s->header.next; | |
226 | } | |
227 | } | |
228 | ||
836c6af1 | 229 | static void |
7d8a3a28 | 230 | ppc_before_allocation (void) |
836c6af1 | 231 | { |
a015f5ec | 232 | if (stub_file != NULL) |
e0468e59 | 233 | { |
74f0fb50 | 234 | if (!no_opd_opt |
33c0ec9d | 235 | && !ppc64_elf_edit_opd (&link_info, non_overlapping_opd)) |
92b7a70f | 236 | einfo ("%X%P: can not edit %s %E\n", "opd"); |
e5096e3f | 237 | |
33c0ec9d | 238 | if (ppc64_elf_tls_setup (&link_info, no_tls_get_addr_opt, &no_multi_toc) |
f13a99db | 239 | && !no_tls_opt) |
a015f5ec AM |
240 | { |
241 | /* Size the sections. This is premature, but we want to know the | |
242 | TLS segment layout so that certain optimizations can be done. */ | |
e9ee469a AM |
243 | expld.phase = lang_mark_phase_enum; |
244 | expld.dataseg.phase = exp_dataseg_none; | |
245 | one_lang_size_sections_pass (NULL, TRUE); | |
a015f5ec | 246 | |
33c0ec9d | 247 | if (!ppc64_elf_tls_optimize (&link_info)) |
92b7a70f | 248 | einfo ("%X%P: TLS problem %E\n"); |
a015f5ec | 249 | |
83490352 | 250 | /* We must not cache anything from the preliminary sizing. */ |
a015f5ec AM |
251 | lang_reset_memory_regions (); |
252 | } | |
c5614fa4 AM |
253 | |
254 | if (!no_toc_opt | |
255 | && !link_info.relocatable | |
33c0ec9d | 256 | && !ppc64_elf_edit_toc (&link_info)) |
92b7a70f | 257 | einfo ("%X%P: can not edit %s %E\n", "toc"); |
d43d0b53 AM |
258 | |
259 | if (!no_toc_sort) | |
260 | { | |
261 | lang_output_section_statement_type *toc_os; | |
262 | ||
263 | toc_os = lang_output_section_find (".got"); | |
264 | if (toc_os != NULL) | |
265 | sort_toc_sections (&toc_os->children, NULL, NULL); | |
266 | } | |
e0468e59 AM |
267 | } |
268 | ||
836c6af1 AM |
269 | gld${EMULATION_NAME}_before_allocation (); |
270 | } | |
271 | ||
9c1d81c1 AM |
272 | struct hook_stub_info |
273 | { | |
274 | lang_statement_list_type add; | |
275 | asection *input_section; | |
276 | }; | |
277 | ||
278 | /* Traverse the linker tree to find the spot where the stub goes. */ | |
279 | ||
b34976b6 | 280 | static bfd_boolean |
7d8a3a28 | 281 | hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp) |
9c1d81c1 AM |
282 | { |
283 | lang_statement_union_type *l; | |
b34976b6 | 284 | bfd_boolean ret; |
9c1d81c1 AM |
285 | |
286 | for (; (l = *lp) != NULL; lp = &l->header.next) | |
287 | { | |
288 | switch (l->header.type) | |
289 | { | |
290 | case lang_constructors_statement_enum: | |
291 | ret = hook_in_stub (info, &constructor_list.head); | |
292 | if (ret) | |
293 | return ret; | |
294 | break; | |
295 | ||
296 | case lang_output_section_statement_enum: | |
297 | ret = hook_in_stub (info, | |
298 | &l->output_section_statement.children.head); | |
299 | if (ret) | |
300 | return ret; | |
301 | break; | |
302 | ||
303 | case lang_wild_statement_enum: | |
304 | ret = hook_in_stub (info, &l->wild_statement.children.head); | |
305 | if (ret) | |
306 | return ret; | |
307 | break; | |
308 | ||
309 | case lang_group_statement_enum: | |
310 | ret = hook_in_stub (info, &l->group_statement.children.head); | |
311 | if (ret) | |
312 | return ret; | |
313 | break; | |
314 | ||
315 | case lang_input_section_enum: | |
316 | if (l->input_section.section == info->input_section) | |
317 | { | |
318 | /* We've found our section. Insert the stub immediately | |
319 | before its associated input section. */ | |
320 | *lp = info->add.head; | |
321 | *(info->add.tail) = l; | |
b34976b6 | 322 | return TRUE; |
9c1d81c1 AM |
323 | } |
324 | break; | |
325 | ||
326 | case lang_data_statement_enum: | |
327 | case lang_reloc_statement_enum: | |
328 | case lang_object_symbols_statement_enum: | |
329 | case lang_output_statement_enum: | |
330 | case lang_target_statement_enum: | |
331 | case lang_input_statement_enum: | |
332 | case lang_assignment_statement_enum: | |
333 | case lang_padding_statement_enum: | |
334 | case lang_address_statement_enum: | |
335 | case lang_fill_statement_enum: | |
336 | break; | |
337 | ||
338 | default: | |
339 | FAIL (); | |
340 | break; | |
341 | } | |
342 | } | |
b34976b6 | 343 | return FALSE; |
9c1d81c1 AM |
344 | } |
345 | ||
346 | ||
347 | /* Call-back for ppc64_elf_size_stubs. */ | |
348 | ||
349 | /* Create a new stub section, and arrange for it to be linked | |
350 | immediately before INPUT_SECTION. */ | |
351 | ||
352 | static asection * | |
7d8a3a28 | 353 | ppc_add_stub_section (const char *stub_sec_name, asection *input_section) |
9c1d81c1 AM |
354 | { |
355 | asection *stub_sec; | |
356 | flagword flags; | |
357 | asection *output_section; | |
358 | const char *secname; | |
359 | lang_output_section_statement_type *os; | |
360 | struct hook_stub_info info; | |
361 | ||
9c1d81c1 | 362 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE |
e4e0193e | 363 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_KEEP); |
9795b468 AM |
364 | stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd, |
365 | stub_sec_name, flags); | |
366 | if (stub_sec == NULL) | |
9c1d81c1 AM |
367 | goto err_ret; |
368 | ||
369 | output_section = input_section->output_section; | |
370 | secname = bfd_get_section_name (output_section->owner, output_section); | |
371 | os = lang_output_section_find (secname); | |
372 | ||
373 | info.input_section = input_section; | |
374 | lang_list_init (&info.add); | |
7b986e99 | 375 | lang_add_section (&info.add, stub_sec, os); |
9c1d81c1 AM |
376 | |
377 | if (info.add.head == NULL) | |
378 | goto err_ret; | |
379 | ||
68f8ff14 | 380 | stub_added = 1; |
9c1d81c1 AM |
381 | if (hook_in_stub (&info, &os->children.head)) |
382 | return stub_sec; | |
383 | ||
384 | err_ret: | |
385 | einfo ("%X%P: can not make stub section: %E\n"); | |
386 | return NULL; | |
387 | } | |
388 | ||
389 | ||
390 | /* Another call-back for ppc64_elf_size_stubs. */ | |
391 | ||
392 | static void | |
7d8a3a28 | 393 | ppc_layout_sections_again (void) |
9c1d81c1 AM |
394 | { |
395 | /* If we have changed sizes of the stub sections, then we need | |
396 | to recalculate all the section offsets. This may mean we need to | |
397 | add even more stubs. */ | |
8ded5a0f | 398 | gld${EMULATION_NAME}_map_segments (TRUE); |
1f808cd5 | 399 | |
1049f94e | 400 | if (!link_info.relocatable) |
f13a99db AM |
401 | _bfd_set_gp_value (link_info.output_bfd, |
402 | ppc64_elf_toc (link_info.output_bfd)); | |
eaeb0a9d AM |
403 | |
404 | need_laying_out = -1; | |
1f808cd5 AM |
405 | } |
406 | ||
9c1d81c1 | 407 | |
0b9a4d73 | 408 | static void |
7d8a3a28 | 409 | build_toc_list (lang_statement_union_type *statement) |
0b9a4d73 | 410 | { |
7b986e99 AM |
411 | if (statement->header.type == lang_input_section_enum) |
412 | { | |
413 | asection *i = statement->input_section.section; | |
414 | ||
415 | if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag | |
416 | && (i->flags & SEC_EXCLUDE) == 0 | |
417 | && i->output_section == toc_section) | |
927be08e AM |
418 | { |
419 | if (!ppc64_elf_next_toc_section (&link_info, i)) | |
420 | einfo ("%X%P: linker script separates .got and .toc\n"); | |
421 | } | |
7b986e99 | 422 | } |
0b9a4d73 AM |
423 | } |
424 | ||
425 | ||
9c1d81c1 | 426 | static void |
7d8a3a28 | 427 | build_section_lists (lang_statement_union_type *statement) |
9c1d81c1 | 428 | { |
7b986e99 | 429 | if (statement->header.type == lang_input_section_enum) |
9c1d81c1 | 430 | { |
7b986e99 AM |
431 | asection *i = statement->input_section.section; |
432 | ||
433 | if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag | |
434 | && (i->flags & SEC_EXCLUDE) == 0 | |
435 | && i->output_section != NULL | |
f13a99db | 436 | && i->output_section->owner == link_info.output_bfd) |
7b986e99 AM |
437 | { |
438 | if (!ppc64_elf_next_input_section (&link_info, i)) | |
439 | einfo ("%X%P: can not size stub section: %E\n"); | |
440 | } | |
9c1d81c1 AM |
441 | } |
442 | } | |
443 | ||
fac1652d | 444 | |
eaeb0a9d AM |
445 | /* Call the back-end function to set TOC base after we have placed all |
446 | the sections. */ | |
1f808cd5 | 447 | static void |
eaeb0a9d | 448 | gld${EMULATION_NAME}_after_allocation (void) |
1f808cd5 | 449 | { |
eaeb0a9d AM |
450 | /* bfd_elf_discard_info just plays with data and debugging sections, |
451 | ie. doesn't affect code size, so we can delay resizing the | |
deb04cdb AM |
452 | sections. It's likely we'll resize everything in the process of |
453 | adding stubs. */ | |
f13a99db | 454 | if (bfd_elf_discard_info (link_info.output_bfd, &link_info)) |
deb04cdb AM |
455 | need_laying_out = 1; |
456 | ||
836c6af1 AM |
457 | /* If generating a relocatable output file, then we don't have any |
458 | stubs. */ | |
1049f94e | 459 | if (stub_file != NULL && !link_info.relocatable) |
1f808cd5 | 460 | { |
927be08e AM |
461 | int ret = ppc64_elf_setup_section_lists (&link_info, |
462 | &ppc_add_stub_section, | |
463 | &ppc_layout_sections_again); | |
92b7a70f AM |
464 | if (ret < 0) |
465 | einfo ("%X%P: can not size stub section: %E\n"); | |
466 | else if (ret > 0) | |
9c1d81c1 | 467 | { |
927be08e AM |
468 | ppc64_elf_start_multitoc_partition (&link_info); |
469 | ||
470 | if (!no_multi_toc) | |
471 | { | |
472 | toc_section = bfd_get_section_by_name (link_info.output_bfd, | |
473 | ".got"); | |
474 | if (toc_section != NULL) | |
475 | lang_for_each_statement (build_toc_list); | |
476 | } | |
477 | ||
478 | if (ppc64_elf_layout_multitoc (&link_info) | |
479 | && !no_multi_toc | |
480 | && toc_section != NULL) | |
0b9a4d73 AM |
481 | lang_for_each_statement (build_toc_list); |
482 | ||
927be08e | 483 | ppc64_elf_finish_multitoc_partition (&link_info); |
0b9a4d73 | 484 | |
836c6af1 | 485 | lang_for_each_statement (build_section_lists); |
9c1d81c1 | 486 | |
70cc837d AM |
487 | if (!ppc64_elf_check_init_fini (&link_info)) |
488 | einfo ("%P: .init/.fini fragments use differing TOC pointers\n"); | |
489 | ||
836c6af1 | 490 | /* Call into the BFD backend to do the real work. */ |
927be08e | 491 | if (!ppc64_elf_size_stubs (&link_info, group_size)) |
92b7a70f | 492 | einfo ("%X%P: can not size stub section: %E\n"); |
1f808cd5 | 493 | } |
9c1d81c1 | 494 | } |
1f808cd5 | 495 | |
8ded5a0f | 496 | if (need_laying_out != -1) |
eaeb0a9d AM |
497 | { |
498 | gld${EMULATION_NAME}_map_segments (need_laying_out); | |
499 | ||
500 | if (!link_info.relocatable) | |
501 | _bfd_set_gp_value (link_info.output_bfd, | |
502 | ppc64_elf_toc (link_info.output_bfd)); | |
503 | } | |
504 | } | |
505 | ||
506 | ||
507 | /* Final emulation specific call. */ | |
508 | ||
509 | static void | |
510 | gld${EMULATION_NAME}_finish (void) | |
511 | { | |
512 | /* e_entry on PowerPC64 points to the function descriptor for | |
513 | _start. If _start is missing, default to the first function | |
514 | descriptor in the .opd section. */ | |
515 | entry_section = ".opd"; | |
deb04cdb | 516 | |
40e45c8b AM |
517 | if (link_info.relocatable) |
518 | { | |
f13a99db | 519 | asection *toc = bfd_get_section_by_name (link_info.output_bfd, ".toc"); |
40e45c8b | 520 | if (toc != NULL |
f13a99db | 521 | && bfd_section_size (link_info.output_bfd, toc) > 0x10000) |
40e45c8b AM |
522 | einfo ("%X%P: TOC section size exceeds 64k\n"); |
523 | } | |
524 | ||
68f8ff14 | 525 | if (stub_added) |
9c1d81c1 | 526 | { |
bda6c678 AM |
527 | char *msg = NULL; |
528 | char *line, *endline; | |
529 | ||
b02c4cfa AM |
530 | if (emit_stub_syms < 0) |
531 | emit_stub_syms = 1; | |
bda6c678 AM |
532 | if (!ppc64_elf_build_stubs (emit_stub_syms, &link_info, |
533 | config.stats ? &msg : NULL)) | |
9c1d81c1 | 534 | einfo ("%X%P: can not build stubs: %E\n"); |
bda6c678 AM |
535 | |
536 | for (line = msg; line != NULL; line = endline) | |
537 | { | |
538 | endline = strchr (line, '\n'); | |
539 | if (endline != NULL) | |
540 | *endline++ = '\0'; | |
541 | fprintf (stderr, "%s: %s\n", program_name, line); | |
542 | } | |
543 | if (msg != NULL) | |
544 | free (msg); | |
9c1d81c1 | 545 | } |
99877b66 AM |
546 | |
547 | ppc64_elf_restore_symbols (&link_info); | |
1e035701 | 548 | finish_default (); |
9c1d81c1 | 549 | } |
1f808cd5 | 550 | |
76dc39fe | 551 | |
fac1652d AM |
552 | /* Add a pattern matching ".foo" for every "foo" in a version script. |
553 | ||
554 | The reason for doing this is that many shared library version | |
555 | scripts export a selected set of functions or data symbols, forcing | |
556 | others local. eg. | |
557 | ||
558 | . VERS_1 { | |
559 | . global: | |
560 | . this; that; some; thing; | |
561 | . local: | |
562 | . *; | |
563 | . }; | |
564 | ||
565 | To make the above work for PowerPC64, we need to export ".this", | |
566 | ".that" and so on, otherwise only the function descriptor syms are | |
567 | exported. Lack of an exported function code sym may cause a | |
568 | definition to be pulled in from a static library. */ | |
569 | ||
7d8a3a28 AM |
570 | static struct bfd_elf_version_expr * |
571 | gld${EMULATION_NAME}_new_vers_pattern (struct bfd_elf_version_expr *entry) | |
fac1652d AM |
572 | { |
573 | struct bfd_elf_version_expr *dot_entry; | |
fac1652d AM |
574 | unsigned int len; |
575 | char *dot_pat; | |
576 | ||
b7b7fe3f | 577 | if (!dotsyms |
ae5a3597 AM |
578 | || entry->pattern[0] == '.' |
579 | || (!entry->literal && entry->pattern[0] == '*')) | |
fac1652d AM |
580 | return entry; |
581 | ||
7d8a3a28 | 582 | dot_entry = xmalloc (sizeof *dot_entry); |
108ba305 | 583 | *dot_entry = *entry; |
fac1652d | 584 | dot_entry->next = entry; |
ae5a3597 AM |
585 | len = strlen (entry->pattern) + 2; |
586 | dot_pat = xmalloc (len); | |
587 | dot_pat[0] = '.'; | |
588 | memcpy (dot_pat + 1, entry->pattern, len - 1); | |
589 | dot_entry->pattern = dot_pat; | |
fac1652d AM |
590 | return dot_entry; |
591 | } | |
592 | ||
593 | ||
9c1d81c1 AM |
594 | /* Avoid processing the fake stub_file in vercheck, stat_needed and |
595 | check_needed routines. */ | |
1f808cd5 | 596 | |
7d8a3a28 | 597 | static void (*real_func) (lang_input_statement_type *); |
1f808cd5 | 598 | |
7d8a3a28 | 599 | static void ppc_for_each_input_file_wrapper (lang_input_statement_type *l) |
9c1d81c1 AM |
600 | { |
601 | if (l != stub_file) | |
602 | (*real_func) (l); | |
1f808cd5 | 603 | } |
9c1d81c1 AM |
604 | |
605 | static void | |
7d8a3a28 | 606 | ppc_lang_for_each_input_file (void (*func) (lang_input_statement_type *)) |
9c1d81c1 AM |
607 | { |
608 | real_func = func; | |
609 | lang_for_each_input_file (&ppc_for_each_input_file_wrapper); | |
610 | } | |
611 | ||
612 | #define lang_for_each_input_file ppc_lang_for_each_input_file | |
613 | ||
1f808cd5 AM |
614 | EOF |
615 | ||
dc27aea4 | 616 | if grep -q 'ld_elf32_spu_emulation' ldemul-list.h; then |
92b93329 | 617 | fragment <<EOF |
dc27aea4 AM |
618 | /* Special handling for embedded SPU executables. */ |
619 | extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *); | |
620 | static bfd_boolean gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *); | |
621 | ||
622 | static bfd_boolean | |
623 | ppc64_recognized_file (lang_input_statement_type *entry) | |
624 | { | |
625 | if (embedded_spu_file (entry, "-m64")) | |
626 | return TRUE; | |
627 | ||
628 | return gld${EMULATION_NAME}_load_symbols (entry); | |
629 | } | |
630 | EOF | |
631 | LDEMUL_RECOGNIZED_FILE=ppc64_recognized_file | |
632 | fi | |
633 | ||
9c1d81c1 AM |
634 | # Define some shell vars to insert bits of code into the standard elf |
635 | # parse_args and list_options functions. | |
636 | # | |
637 | PARSE_AND_LIST_PROLOGUE=' | |
638 | #define OPTION_STUBGROUP_SIZE 301 | |
0b9a4d73 | 639 | #define OPTION_STUBSYMS (OPTION_STUBGROUP_SIZE + 1) |
b02c4cfa AM |
640 | #define OPTION_NO_STUBSYMS (OPTION_STUBSYMS + 1) |
641 | #define OPTION_DOTSYMS (OPTION_NO_STUBSYMS + 1) | |
fac1652d | 642 | #define OPTION_NO_DOTSYMS (OPTION_DOTSYMS + 1) |
e5096e3f | 643 | #define OPTION_NO_TLS_OPT (OPTION_NO_DOTSYMS + 1) |
a7f2871e AM |
644 | #define OPTION_NO_TLS_GET_ADDR_OPT (OPTION_NO_TLS_OPT + 1) |
645 | #define OPTION_NO_OPD_OPT (OPTION_NO_TLS_GET_ADDR_OPT + 1) | |
c5614fa4 | 646 | #define OPTION_NO_TOC_OPT (OPTION_NO_OPD_OPT + 1) |
4c52953f | 647 | #define OPTION_NO_MULTI_TOC (OPTION_NO_TOC_OPT + 1) |
d43d0b53 AM |
648 | #define OPTION_NO_TOC_SORT (OPTION_NO_MULTI_TOC + 1) |
649 | #define OPTION_NON_OVERLAPPING_OPD (OPTION_NO_TOC_SORT + 1) | |
9c1d81c1 AM |
650 | ' |
651 | ||
9c1d81c1 AM |
652 | PARSE_AND_LIST_LONGOPTS=' |
653 | { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, | |
0b9a4d73 | 654 | { "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS }, |
b02c4cfa | 655 | { "no-emit-stub-syms", no_argument, NULL, OPTION_NO_STUBSYMS }, |
fac1652d AM |
656 | { "dotsyms", no_argument, NULL, OPTION_DOTSYMS }, |
657 | { "no-dotsyms", no_argument, NULL, OPTION_NO_DOTSYMS }, | |
e5096e3f | 658 | { "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT }, |
a7f2871e | 659 | { "no-tls-get-addr-optimize", no_argument, NULL, OPTION_NO_TLS_GET_ADDR_OPT }, |
c5614fa4 AM |
660 | { "no-opd-optimize", no_argument, NULL, OPTION_NO_OPD_OPT }, |
661 | { "no-toc-optimize", no_argument, NULL, OPTION_NO_TOC_OPT }, | |
4c52953f | 662 | { "no-multi-toc", no_argument, NULL, OPTION_NO_MULTI_TOC }, |
d43d0b53 | 663 | { "no-toc-sort", no_argument, NULL, OPTION_NO_TOC_SORT }, |
3f764659 | 664 | { "non-overlapping-opd", no_argument, NULL, OPTION_NON_OVERLAPPING_OPD }, |
9c1d81c1 AM |
665 | ' |
666 | ||
667 | PARSE_AND_LIST_OPTIONS=' | |
668 | fprintf (file, _("\ | |
442996ee AM |
669 | --stub-group-size=N Maximum size of a group of input sections that\n\ |
670 | can be handled by one stub section. A negative\n\ | |
671 | value locates all stubs before their branches\n\ | |
672 | (with a group size of -N), while a positive\n\ | |
673 | value allows two groups of input sections, one\n\ | |
674 | before, and one after each stub section.\n\ | |
675 | Values of +/-1 indicate the linker should\n\ | |
676 | choose suitable defaults.\n" | |
9c1d81c1 | 677 | )); |
fac1652d | 678 | fprintf (file, _("\ |
442996ee | 679 | --emit-stub-syms Label linker stubs with a symbol.\n" |
0b9a4d73 AM |
680 | )); |
681 | fprintf (file, _("\ | |
b02c4cfa AM |
682 | --no-emit-stub-syms Don'\''t label linker stubs with a symbol.\n" |
683 | )); | |
684 | fprintf (file, _("\ | |
442996ee AM |
685 | --dotsyms For every version pattern \"foo\" in a version\n\ |
686 | script, add \".foo\" so that function code\n\ | |
687 | symbols are treated the same as function\n\ | |
688 | descriptor symbols. Defaults to on.\n" | |
fac1652d AM |
689 | )); |
690 | fprintf (file, _("\ | |
442996ee | 691 | --no-dotsyms Don'\''t do anything special in version scripts.\n" |
fac1652d | 692 | )); |
e5096e3f | 693 | fprintf (file, _("\ |
442996ee | 694 | --no-tls-optimize Don'\''t try to optimize TLS accesses.\n" |
e5096e3f | 695 | )); |
3f764659 | 696 | fprintf (file, _("\ |
a7f2871e AM |
697 | --no-tls-get-addr-optimize Don'\''t use a special __tls_get_addr call.\n" |
698 | )); | |
699 | fprintf (file, _("\ | |
442996ee | 700 | --no-opd-optimize Don'\''t optimize the OPD section.\n" |
c5614fa4 AM |
701 | )); |
702 | fprintf (file, _("\ | |
442996ee | 703 | --no-toc-optimize Don'\''t optimize the TOC section.\n" |
c5614fa4 AM |
704 | )); |
705 | fprintf (file, _("\ | |
442996ee | 706 | --no-multi-toc Disallow automatic multiple toc sections.\n" |
4c52953f AM |
707 | )); |
708 | fprintf (file, _("\ | |
d43d0b53 AM |
709 | --no-toc-sort Don'\''t sort TOC and GOT sections.\n" |
710 | )); | |
711 | fprintf (file, _("\ | |
442996ee AM |
712 | --non-overlapping-opd Canonicalize .opd, so that there are no\n\ |
713 | overlapping .opd entries.\n" | |
3f764659 | 714 | )); |
9c1d81c1 AM |
715 | ' |
716 | ||
717 | PARSE_AND_LIST_ARGS_CASES=' | |
718 | case OPTION_STUBGROUP_SIZE: | |
719 | { | |
720 | const char *end; | |
721 | group_size = bfd_scan_vma (optarg, &end, 0); | |
722 | if (*end) | |
723 | einfo (_("%P%F: invalid number `%s'\''\n"), optarg); | |
724 | } | |
725 | break; | |
fac1652d | 726 | |
0b9a4d73 AM |
727 | case OPTION_STUBSYMS: |
728 | emit_stub_syms = 1; | |
729 | break; | |
730 | ||
b02c4cfa AM |
731 | case OPTION_NO_STUBSYMS: |
732 | emit_stub_syms = 0; | |
733 | break; | |
734 | ||
fac1652d | 735 | case OPTION_DOTSYMS: |
e5096e3f | 736 | dotsyms = 1; |
fac1652d AM |
737 | break; |
738 | ||
739 | case OPTION_NO_DOTSYMS: | |
e5096e3f AM |
740 | dotsyms = 0; |
741 | break; | |
742 | ||
743 | case OPTION_NO_TLS_OPT: | |
c5614fa4 AM |
744 | no_tls_opt = 1; |
745 | break; | |
746 | ||
a7f2871e AM |
747 | case OPTION_NO_TLS_GET_ADDR_OPT: |
748 | no_tls_get_addr_opt = 1; | |
749 | break; | |
750 | ||
c5614fa4 AM |
751 | case OPTION_NO_OPD_OPT: |
752 | no_opd_opt = 1; | |
753 | break; | |
754 | ||
755 | case OPTION_NO_TOC_OPT: | |
756 | no_toc_opt = 1; | |
fac1652d | 757 | break; |
3f764659 | 758 | |
4c52953f AM |
759 | case OPTION_NO_MULTI_TOC: |
760 | no_multi_toc = 1; | |
761 | break; | |
762 | ||
d43d0b53 AM |
763 | case OPTION_NO_TOC_SORT: |
764 | no_toc_sort = 1; | |
765 | break; | |
766 | ||
3f764659 JJ |
767 | case OPTION_NON_OVERLAPPING_OPD: |
768 | non_overlapping_opd = 1; | |
769 | break; | |
9c1d81c1 AM |
770 | ' |
771 | ||
1f808cd5 AM |
772 | # Put these extra ppc64elf routines in ld_${EMULATION_NAME}_emulation |
773 | # | |
836c6af1 | 774 | LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation |
1f808cd5 | 775 | LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation |
8ded5a0f | 776 | LDEMUL_FINISH=gld${EMULATION_NAME}_finish |
9c1d81c1 | 777 | LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_create_output_section_statements |
fac1652d | 778 | LDEMUL_NEW_VERS_PATTERN=gld${EMULATION_NAME}_new_vers_pattern |