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1f808cd5 | 1 | # This shell script emits a C file. -*- C -*- |
aef6203b | 2 | # Copyright 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
1f808cd5 AM |
3 | # |
4 | # This file is part of GLD, the Gnu Linker. | |
5 | # | |
6 | # This program is free software; you can redistribute it and/or modify | |
7 | # it under the terms of the GNU General Public License as published by | |
8 | # the Free Software Foundation; either version 2 of the License, or | |
9 | # (at your option) any later version. | |
10 | # | |
11 | # This program is distributed in the hope that it will be useful, | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | # GNU General Public License for more details. | |
15 | # | |
16 | # You should have received a copy of the GNU General Public License | |
17 | # along with this program; if not, write to the Free Software | |
75be928b | 18 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. |
1f808cd5 AM |
19 | # |
20 | ||
21 | # This file is sourced from elf32.em, and defines extra powerpc64-elf | |
22 | # specific routines. | |
23 | # | |
24 | cat >>e${EMULATION_NAME}.c <<EOF | |
25 | ||
9c1d81c1 | 26 | #include "ldctor.h" |
805fc799 | 27 | #include "libbfd.h" |
83490352 | 28 | #include "elf-bfd.h" |
1f808cd5 AM |
29 | #include "elf64-ppc.h" |
30 | ||
9c1d81c1 AM |
31 | /* Fake input file for stubs. */ |
32 | static lang_input_statement_type *stub_file; | |
68f8ff14 | 33 | static int stub_added = 0; |
9c1d81c1 | 34 | |
deb04cdb AM |
35 | /* Whether we need to call ppc_layout_sections_again. */ |
36 | static int need_laying_out = 0; | |
37 | ||
9c1d81c1 AM |
38 | /* Maximum size of a group of input sections that can be handled by |
39 | one stub section. A value of +/-1 indicates the bfd back-end | |
40 | should use a suitable default size. */ | |
41 | static bfd_signed_vma group_size = 1; | |
42 | ||
fac1652d AM |
43 | /* Whether to add ".foo" entries for each "foo" in a version script. */ |
44 | static int dotsyms = 1; | |
45 | ||
e5096e3f | 46 | /* Whether to run tls optimization. */ |
c5614fa4 AM |
47 | static int no_tls_opt = 0; |
48 | ||
49 | /* Whether to run opd optimization. */ | |
50 | static int no_opd_opt = 0; | |
51 | ||
52 | /* Whether to run toc optimization. */ | |
53 | static int no_toc_opt = 0; | |
e5096e3f | 54 | |
4c52953f AM |
55 | /* Whether to allow multiple toc sections. */ |
56 | static int no_multi_toc = 0; | |
57 | ||
0b9a4d73 AM |
58 | /* Whether to emit symbols for stubs. */ |
59 | static int emit_stub_syms = 0; | |
60 | ||
61 | static asection *toc_section = 0; | |
62 | ||
3f764659 JJ |
63 | /* Whether to canonicalize .opd so that there are no overlapping |
64 | .opd entries. */ | |
65 | static int non_overlapping_opd = 0; | |
9c1d81c1 AM |
66 | |
67 | /* This is called before the input files are opened. We create a new | |
68 | fake input file to hold the stub sections. */ | |
69 | ||
70 | static void | |
7d8a3a28 | 71 | ppc_create_output_section_statements (void) |
9c1d81c1 | 72 | { |
a015f5ec AM |
73 | extern const bfd_target bfd_elf64_powerpc_vec; |
74 | extern const bfd_target bfd_elf64_powerpcle_vec; | |
75 | ||
76 | if (link_info.hash->creator != &bfd_elf64_powerpc_vec | |
77 | && link_info.hash->creator != &bfd_elf64_powerpcle_vec) | |
78 | return; | |
79 | ||
b9cf773d AM |
80 | link_info.wrap_char = '.'; |
81 | ||
9c1d81c1 AM |
82 | stub_file = lang_add_input_file ("linker stubs", |
83 | lang_input_file_is_fake_enum, | |
84 | NULL); | |
85 | stub_file->the_bfd = bfd_create ("linker stubs", output_bfd); | |
86 | if (stub_file->the_bfd == NULL | |
87 | || !bfd_set_arch_mach (stub_file->the_bfd, | |
88 | bfd_get_arch (output_bfd), | |
89 | bfd_get_mach (output_bfd))) | |
90 | { | |
92b7a70f | 91 | einfo ("%F%P: can not create BFD %E\n"); |
9c1d81c1 AM |
92 | return; |
93 | } | |
94 | ||
d457dcf6 | 95 | stub_file->the_bfd->flags |= BFD_LINKER_CREATED; |
9c1d81c1 | 96 | ldlang_add_file (stub_file); |
68f8ff14 | 97 | ppc64_elf_init_stub_bfd (stub_file->the_bfd, &link_info); |
9c1d81c1 AM |
98 | } |
99 | ||
836c6af1 | 100 | static void |
7d8a3a28 | 101 | ppc_before_allocation (void) |
836c6af1 | 102 | { |
a015f5ec | 103 | if (stub_file != NULL) |
e0468e59 | 104 | { |
b4f4e59f AM |
105 | if (!ppc64_elf_edit_opd (output_bfd, &link_info, no_opd_opt, |
106 | non_overlapping_opd)) | |
92b7a70f | 107 | einfo ("%X%P: can not edit %s %E\n", "opd"); |
e5096e3f | 108 | |
c5614fa4 | 109 | if (ppc64_elf_tls_setup (output_bfd, &link_info) && !no_tls_opt) |
a015f5ec AM |
110 | { |
111 | /* Size the sections. This is premature, but we want to know the | |
112 | TLS segment layout so that certain optimizations can be done. */ | |
e9ee469a AM |
113 | expld.phase = lang_mark_phase_enum; |
114 | expld.dataseg.phase = exp_dataseg_none; | |
115 | one_lang_size_sections_pass (NULL, TRUE); | |
a015f5ec AM |
116 | |
117 | if (!ppc64_elf_tls_optimize (output_bfd, &link_info)) | |
92b7a70f | 118 | einfo ("%X%P: TLS problem %E\n"); |
a015f5ec | 119 | |
83490352 | 120 | /* We must not cache anything from the preliminary sizing. */ |
a015f5ec AM |
121 | lang_reset_memory_regions (); |
122 | } | |
c5614fa4 AM |
123 | |
124 | if (!no_toc_opt | |
125 | && !link_info.relocatable | |
126 | && !ppc64_elf_edit_toc (output_bfd, &link_info)) | |
92b7a70f | 127 | einfo ("%X%P: can not edit %s %E\n", "toc"); |
e0468e59 AM |
128 | } |
129 | ||
836c6af1 AM |
130 | gld${EMULATION_NAME}_before_allocation (); |
131 | } | |
132 | ||
9c1d81c1 AM |
133 | struct hook_stub_info |
134 | { | |
135 | lang_statement_list_type add; | |
136 | asection *input_section; | |
137 | }; | |
138 | ||
139 | /* Traverse the linker tree to find the spot where the stub goes. */ | |
140 | ||
b34976b6 | 141 | static bfd_boolean |
7d8a3a28 | 142 | hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp) |
9c1d81c1 AM |
143 | { |
144 | lang_statement_union_type *l; | |
b34976b6 | 145 | bfd_boolean ret; |
9c1d81c1 AM |
146 | |
147 | for (; (l = *lp) != NULL; lp = &l->header.next) | |
148 | { | |
149 | switch (l->header.type) | |
150 | { | |
151 | case lang_constructors_statement_enum: | |
152 | ret = hook_in_stub (info, &constructor_list.head); | |
153 | if (ret) | |
154 | return ret; | |
155 | break; | |
156 | ||
157 | case lang_output_section_statement_enum: | |
158 | ret = hook_in_stub (info, | |
159 | &l->output_section_statement.children.head); | |
160 | if (ret) | |
161 | return ret; | |
162 | break; | |
163 | ||
164 | case lang_wild_statement_enum: | |
165 | ret = hook_in_stub (info, &l->wild_statement.children.head); | |
166 | if (ret) | |
167 | return ret; | |
168 | break; | |
169 | ||
170 | case lang_group_statement_enum: | |
171 | ret = hook_in_stub (info, &l->group_statement.children.head); | |
172 | if (ret) | |
173 | return ret; | |
174 | break; | |
175 | ||
176 | case lang_input_section_enum: | |
177 | if (l->input_section.section == info->input_section) | |
178 | { | |
179 | /* We've found our section. Insert the stub immediately | |
180 | before its associated input section. */ | |
181 | *lp = info->add.head; | |
182 | *(info->add.tail) = l; | |
b34976b6 | 183 | return TRUE; |
9c1d81c1 AM |
184 | } |
185 | break; | |
186 | ||
187 | case lang_data_statement_enum: | |
188 | case lang_reloc_statement_enum: | |
189 | case lang_object_symbols_statement_enum: | |
190 | case lang_output_statement_enum: | |
191 | case lang_target_statement_enum: | |
192 | case lang_input_statement_enum: | |
193 | case lang_assignment_statement_enum: | |
194 | case lang_padding_statement_enum: | |
195 | case lang_address_statement_enum: | |
196 | case lang_fill_statement_enum: | |
197 | break; | |
198 | ||
199 | default: | |
200 | FAIL (); | |
201 | break; | |
202 | } | |
203 | } | |
b34976b6 | 204 | return FALSE; |
9c1d81c1 AM |
205 | } |
206 | ||
207 | ||
208 | /* Call-back for ppc64_elf_size_stubs. */ | |
209 | ||
210 | /* Create a new stub section, and arrange for it to be linked | |
211 | immediately before INPUT_SECTION. */ | |
212 | ||
213 | static asection * | |
7d8a3a28 | 214 | ppc_add_stub_section (const char *stub_sec_name, asection *input_section) |
9c1d81c1 AM |
215 | { |
216 | asection *stub_sec; | |
217 | flagword flags; | |
218 | asection *output_section; | |
219 | const char *secname; | |
220 | lang_output_section_statement_type *os; | |
221 | struct hook_stub_info info; | |
222 | ||
223 | stub_sec = bfd_make_section_anyway (stub_file->the_bfd, stub_sec_name); | |
224 | if (stub_sec == NULL) | |
225 | goto err_ret; | |
226 | ||
227 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE | |
e4e0193e | 228 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_KEEP); |
9c1d81c1 AM |
229 | if (!bfd_set_section_flags (stub_file->the_bfd, stub_sec, flags)) |
230 | goto err_ret; | |
231 | ||
232 | output_section = input_section->output_section; | |
233 | secname = bfd_get_section_name (output_section->owner, output_section); | |
234 | os = lang_output_section_find (secname); | |
235 | ||
236 | info.input_section = input_section; | |
237 | lang_list_init (&info.add); | |
7b986e99 | 238 | lang_add_section (&info.add, stub_sec, os); |
9c1d81c1 AM |
239 | |
240 | if (info.add.head == NULL) | |
241 | goto err_ret; | |
242 | ||
68f8ff14 | 243 | stub_added = 1; |
9c1d81c1 AM |
244 | if (hook_in_stub (&info, &os->children.head)) |
245 | return stub_sec; | |
246 | ||
247 | err_ret: | |
248 | einfo ("%X%P: can not make stub section: %E\n"); | |
249 | return NULL; | |
250 | } | |
251 | ||
252 | ||
253 | /* Another call-back for ppc64_elf_size_stubs. */ | |
254 | ||
255 | static void | |
7d8a3a28 | 256 | ppc_layout_sections_again (void) |
9c1d81c1 AM |
257 | { |
258 | /* If we have changed sizes of the stub sections, then we need | |
259 | to recalculate all the section offsets. This may mean we need to | |
260 | add even more stubs. */ | |
8ded5a0f AM |
261 | gld${EMULATION_NAME}_map_segments (TRUE); |
262 | need_laying_out = -1; | |
9c1d81c1 AM |
263 | } |
264 | ||
1f808cd5 AM |
265 | |
266 | /* Call the back-end function to set TOC base after we have placed all | |
267 | the sections. */ | |
268 | static void | |
7d8a3a28 | 269 | gld${EMULATION_NAME}_after_allocation (void) |
1f808cd5 | 270 | { |
1049f94e | 271 | if (!link_info.relocatable) |
805fc799 | 272 | _bfd_set_gp_value (output_bfd, ppc64_elf_toc (output_bfd)); |
1f808cd5 AM |
273 | } |
274 | ||
9c1d81c1 | 275 | |
0b9a4d73 | 276 | static void |
7d8a3a28 | 277 | build_toc_list (lang_statement_union_type *statement) |
0b9a4d73 | 278 | { |
7b986e99 AM |
279 | if (statement->header.type == lang_input_section_enum) |
280 | { | |
281 | asection *i = statement->input_section.section; | |
282 | ||
283 | if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag | |
284 | && (i->flags & SEC_EXCLUDE) == 0 | |
285 | && i->output_section == toc_section) | |
286 | ppc64_elf_next_toc_section (&link_info, i); | |
287 | } | |
0b9a4d73 AM |
288 | } |
289 | ||
290 | ||
9c1d81c1 | 291 | static void |
7d8a3a28 | 292 | build_section_lists (lang_statement_union_type *statement) |
9c1d81c1 | 293 | { |
7b986e99 | 294 | if (statement->header.type == lang_input_section_enum) |
9c1d81c1 | 295 | { |
7b986e99 AM |
296 | asection *i = statement->input_section.section; |
297 | ||
298 | if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag | |
299 | && (i->flags & SEC_EXCLUDE) == 0 | |
300 | && i->output_section != NULL | |
301 | && i->output_section->owner == output_bfd) | |
302 | { | |
303 | if (!ppc64_elf_next_input_section (&link_info, i)) | |
304 | einfo ("%X%P: can not size stub section: %E\n"); | |
305 | } | |
9c1d81c1 AM |
306 | } |
307 | } | |
308 | ||
fac1652d | 309 | |
9c1d81c1 | 310 | /* Final emulation specific call. */ |
1f808cd5 AM |
311 | |
312 | static void | |
8ded5a0f | 313 | gld${EMULATION_NAME}_finish (void) |
1f808cd5 | 314 | { |
1e281515 AM |
315 | /* e_entry on PowerPC64 points to the function descriptor for |
316 | _start. If _start is missing, default to the first function | |
317 | descriptor in the .opd section. */ | |
318 | entry_section = ".opd"; | |
319 | ||
deb04cdb AM |
320 | /* bfd_elf_discard_info just plays with debugging sections, |
321 | ie. doesn't affect any code, so we can delay resizing the | |
322 | sections. It's likely we'll resize everything in the process of | |
323 | adding stubs. */ | |
324 | if (bfd_elf_discard_info (output_bfd, &link_info)) | |
325 | need_laying_out = 1; | |
326 | ||
836c6af1 AM |
327 | /* If generating a relocatable output file, then we don't have any |
328 | stubs. */ | |
1049f94e | 329 | if (stub_file != NULL && !link_info.relocatable) |
1f808cd5 | 330 | { |
4c52953f AM |
331 | int ret = ppc64_elf_setup_section_lists (output_bfd, &link_info, |
332 | no_multi_toc); | |
92b7a70f AM |
333 | if (ret < 0) |
334 | einfo ("%X%P: can not size stub section: %E\n"); | |
335 | else if (ret > 0) | |
9c1d81c1 | 336 | { |
68f8ff14 | 337 | toc_section = bfd_get_section_by_name (output_bfd, ".got"); |
0b9a4d73 AM |
338 | if (toc_section != NULL) |
339 | lang_for_each_statement (build_toc_list); | |
340 | ||
341 | ppc64_elf_reinit_toc (output_bfd, &link_info); | |
342 | ||
836c6af1 | 343 | lang_for_each_statement (build_section_lists); |
9c1d81c1 | 344 | |
836c6af1 AM |
345 | /* Call into the BFD backend to do the real work. */ |
346 | if (!ppc64_elf_size_stubs (output_bfd, | |
836c6af1 AM |
347 | &link_info, |
348 | group_size, | |
349 | &ppc_add_stub_section, | |
350 | &ppc_layout_sections_again)) | |
92b7a70f | 351 | einfo ("%X%P: can not size stub section: %E\n"); |
1f808cd5 | 352 | } |
9c1d81c1 | 353 | } |
1f808cd5 | 354 | |
8ded5a0f AM |
355 | if (need_laying_out != -1) |
356 | gld${EMULATION_NAME}_map_segments (need_laying_out); | |
deb04cdb | 357 | |
40e45c8b AM |
358 | if (link_info.relocatable) |
359 | { | |
360 | asection *toc = bfd_get_section_by_name (output_bfd, ".toc"); | |
361 | if (toc != NULL | |
362 | && bfd_section_size (output_bfd, toc) > 0x10000) | |
363 | einfo ("%X%P: TOC section size exceeds 64k\n"); | |
364 | } | |
365 | ||
68f8ff14 | 366 | if (stub_added) |
9c1d81c1 | 367 | { |
bda6c678 AM |
368 | char *msg = NULL; |
369 | char *line, *endline; | |
370 | ||
a23d8409 | 371 | emit_stub_syms |= link_info.emitrelocations; |
bda6c678 AM |
372 | if (!ppc64_elf_build_stubs (emit_stub_syms, &link_info, |
373 | config.stats ? &msg : NULL)) | |
9c1d81c1 | 374 | einfo ("%X%P: can not build stubs: %E\n"); |
bda6c678 AM |
375 | |
376 | for (line = msg; line != NULL; line = endline) | |
377 | { | |
378 | endline = strchr (line, '\n'); | |
379 | if (endline != NULL) | |
380 | *endline++ = '\0'; | |
381 | fprintf (stderr, "%s: %s\n", program_name, line); | |
382 | } | |
383 | if (msg != NULL) | |
384 | free (msg); | |
9c1d81c1 | 385 | } |
99877b66 AM |
386 | |
387 | ppc64_elf_restore_symbols (&link_info); | |
1e035701 | 388 | finish_default (); |
9c1d81c1 | 389 | } |
1f808cd5 | 390 | |
76dc39fe | 391 | |
fac1652d AM |
392 | /* Add a pattern matching ".foo" for every "foo" in a version script. |
393 | ||
394 | The reason for doing this is that many shared library version | |
395 | scripts export a selected set of functions or data symbols, forcing | |
396 | others local. eg. | |
397 | ||
398 | . VERS_1 { | |
399 | . global: | |
400 | . this; that; some; thing; | |
401 | . local: | |
402 | . *; | |
403 | . }; | |
404 | ||
405 | To make the above work for PowerPC64, we need to export ".this", | |
406 | ".that" and so on, otherwise only the function descriptor syms are | |
407 | exported. Lack of an exported function code sym may cause a | |
408 | definition to be pulled in from a static library. */ | |
409 | ||
7d8a3a28 AM |
410 | static struct bfd_elf_version_expr * |
411 | gld${EMULATION_NAME}_new_vers_pattern (struct bfd_elf_version_expr *entry) | |
fac1652d AM |
412 | { |
413 | struct bfd_elf_version_expr *dot_entry; | |
fac1652d AM |
414 | unsigned int len; |
415 | char *dot_pat; | |
416 | ||
b7b7fe3f AS |
417 | if (!dotsyms |
418 | || (entry->pattern != NULL | |
419 | && (entry->pattern[0] == '*' || entry->pattern[0] == '.'))) | |
fac1652d AM |
420 | return entry; |
421 | ||
7d8a3a28 | 422 | dot_entry = xmalloc (sizeof *dot_entry); |
108ba305 | 423 | *dot_entry = *entry; |
fac1652d | 424 | dot_entry->next = entry; |
b7b7fe3f AS |
425 | if (entry->pattern != NULL) |
426 | { | |
427 | len = strlen (entry->pattern) + 2; | |
428 | dot_pat = xmalloc (len); | |
429 | dot_pat[0] = '.'; | |
430 | memcpy (dot_pat + 1, entry->pattern, len - 1); | |
431 | dot_entry->pattern = dot_pat; | |
432 | } | |
c4e33880 AM |
433 | if (entry->symbol != NULL) |
434 | { | |
435 | len = strlen (entry->symbol) + 2; | |
436 | dot_pat = xmalloc (len); | |
437 | dot_pat[0] = '.'; | |
438 | memcpy (dot_pat + 1, entry->symbol, len - 1); | |
439 | dot_entry->symbol = dot_pat; | |
440 | } | |
fac1652d AM |
441 | return dot_entry; |
442 | } | |
443 | ||
444 | ||
9c1d81c1 AM |
445 | /* Avoid processing the fake stub_file in vercheck, stat_needed and |
446 | check_needed routines. */ | |
1f808cd5 | 447 | |
7d8a3a28 | 448 | static void (*real_func) (lang_input_statement_type *); |
1f808cd5 | 449 | |
7d8a3a28 | 450 | static void ppc_for_each_input_file_wrapper (lang_input_statement_type *l) |
9c1d81c1 AM |
451 | { |
452 | if (l != stub_file) | |
453 | (*real_func) (l); | |
1f808cd5 | 454 | } |
9c1d81c1 AM |
455 | |
456 | static void | |
7d8a3a28 | 457 | ppc_lang_for_each_input_file (void (*func) (lang_input_statement_type *)) |
9c1d81c1 AM |
458 | { |
459 | real_func = func; | |
460 | lang_for_each_input_file (&ppc_for_each_input_file_wrapper); | |
461 | } | |
462 | ||
463 | #define lang_for_each_input_file ppc_lang_for_each_input_file | |
464 | ||
1f808cd5 AM |
465 | EOF |
466 | ||
dc27aea4 AM |
467 | if grep -q 'ld_elf32_spu_emulation' ldemul-list.h; then |
468 | cat >>e${EMULATION_NAME}.c <<EOF | |
469 | /* Special handling for embedded SPU executables. */ | |
470 | extern bfd_boolean embedded_spu_file (lang_input_statement_type *, const char *); | |
471 | static bfd_boolean gld${EMULATION_NAME}_load_symbols (lang_input_statement_type *); | |
472 | ||
473 | static bfd_boolean | |
474 | ppc64_recognized_file (lang_input_statement_type *entry) | |
475 | { | |
476 | if (embedded_spu_file (entry, "-m64")) | |
477 | return TRUE; | |
478 | ||
479 | return gld${EMULATION_NAME}_load_symbols (entry); | |
480 | } | |
481 | EOF | |
482 | LDEMUL_RECOGNIZED_FILE=ppc64_recognized_file | |
483 | fi | |
484 | ||
9c1d81c1 AM |
485 | # Define some shell vars to insert bits of code into the standard elf |
486 | # parse_args and list_options functions. | |
487 | # | |
488 | PARSE_AND_LIST_PROLOGUE=' | |
489 | #define OPTION_STUBGROUP_SIZE 301 | |
0b9a4d73 AM |
490 | #define OPTION_STUBSYMS (OPTION_STUBGROUP_SIZE + 1) |
491 | #define OPTION_DOTSYMS (OPTION_STUBSYMS + 1) | |
fac1652d | 492 | #define OPTION_NO_DOTSYMS (OPTION_DOTSYMS + 1) |
e5096e3f | 493 | #define OPTION_NO_TLS_OPT (OPTION_NO_DOTSYMS + 1) |
c5614fa4 AM |
494 | #define OPTION_NO_OPD_OPT (OPTION_NO_TLS_OPT + 1) |
495 | #define OPTION_NO_TOC_OPT (OPTION_NO_OPD_OPT + 1) | |
4c52953f AM |
496 | #define OPTION_NO_MULTI_TOC (OPTION_NO_TOC_OPT + 1) |
497 | #define OPTION_NON_OVERLAPPING_OPD (OPTION_NO_MULTI_TOC + 1) | |
9c1d81c1 AM |
498 | ' |
499 | ||
9c1d81c1 AM |
500 | PARSE_AND_LIST_LONGOPTS=' |
501 | { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, | |
0b9a4d73 | 502 | { "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS }, |
fac1652d AM |
503 | { "dotsyms", no_argument, NULL, OPTION_DOTSYMS }, |
504 | { "no-dotsyms", no_argument, NULL, OPTION_NO_DOTSYMS }, | |
e5096e3f | 505 | { "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT }, |
c5614fa4 AM |
506 | { "no-opd-optimize", no_argument, NULL, OPTION_NO_OPD_OPT }, |
507 | { "no-toc-optimize", no_argument, NULL, OPTION_NO_TOC_OPT }, | |
4c52953f | 508 | { "no-multi-toc", no_argument, NULL, OPTION_NO_MULTI_TOC }, |
3f764659 | 509 | { "non-overlapping-opd", no_argument, NULL, OPTION_NON_OVERLAPPING_OPD }, |
9c1d81c1 AM |
510 | ' |
511 | ||
512 | PARSE_AND_LIST_OPTIONS=' | |
513 | fprintf (file, _("\ | |
514 | --stub-group-size=N Maximum size of a group of input sections that can be\n\ | |
515 | handled by one stub section. A negative value\n\ | |
516 | locates all stubs before their branches (with a\n\ | |
517 | group size of -N), while a positive value allows\n\ | |
518 | two groups of input sections, one before, and one\n\ | |
519 | after each stub section. Values of +/-1 indicate\n\ | |
520 | the linker should choose suitable defaults.\n" | |
521 | )); | |
fac1652d | 522 | fprintf (file, _("\ |
0b9a4d73 AM |
523 | --emit-stub-syms Label linker stubs with a symbol.\n" |
524 | )); | |
525 | fprintf (file, _("\ | |
fac1652d AM |
526 | --dotsyms For every version pattern \"foo\" in a version script,\n\ |
527 | add \".foo\" so that function code symbols are\n\ | |
528 | treated the same as function descriptor symbols.\n\ | |
529 | Defaults to on.\n" | |
530 | )); | |
531 | fprintf (file, _("\ | |
532 | --no-dotsyms Don'\''t do anything special in version scripts.\n" | |
533 | )); | |
e5096e3f AM |
534 | fprintf (file, _("\ |
535 | --no-tls-optimize Don'\''t try to optimize TLS accesses.\n" | |
536 | )); | |
3f764659 | 537 | fprintf (file, _("\ |
c5614fa4 AM |
538 | --no-opd-optimize Don'\''t optimize the OPD section.\n" |
539 | )); | |
540 | fprintf (file, _("\ | |
541 | --no-toc-optimize Don'\''t optimize the TOC section.\n" | |
542 | )); | |
543 | fprintf (file, _("\ | |
4c52953f AM |
544 | --no-multi-toc Disallow automatic multiple toc sections.\n" |
545 | )); | |
546 | fprintf (file, _("\ | |
3f764659 JJ |
547 | --non-overlapping-opd Canonicalize .opd, so that there are no overlapping\n\ |
548 | .opd entries.\n" | |
549 | )); | |
9c1d81c1 AM |
550 | ' |
551 | ||
552 | PARSE_AND_LIST_ARGS_CASES=' | |
553 | case OPTION_STUBGROUP_SIZE: | |
554 | { | |
555 | const char *end; | |
556 | group_size = bfd_scan_vma (optarg, &end, 0); | |
557 | if (*end) | |
558 | einfo (_("%P%F: invalid number `%s'\''\n"), optarg); | |
559 | } | |
560 | break; | |
fac1652d | 561 | |
0b9a4d73 AM |
562 | case OPTION_STUBSYMS: |
563 | emit_stub_syms = 1; | |
564 | break; | |
565 | ||
fac1652d | 566 | case OPTION_DOTSYMS: |
e5096e3f | 567 | dotsyms = 1; |
fac1652d AM |
568 | break; |
569 | ||
570 | case OPTION_NO_DOTSYMS: | |
e5096e3f AM |
571 | dotsyms = 0; |
572 | break; | |
573 | ||
574 | case OPTION_NO_TLS_OPT: | |
c5614fa4 AM |
575 | no_tls_opt = 1; |
576 | break; | |
577 | ||
578 | case OPTION_NO_OPD_OPT: | |
579 | no_opd_opt = 1; | |
580 | break; | |
581 | ||
582 | case OPTION_NO_TOC_OPT: | |
583 | no_toc_opt = 1; | |
fac1652d | 584 | break; |
3f764659 | 585 | |
4c52953f AM |
586 | case OPTION_NO_MULTI_TOC: |
587 | no_multi_toc = 1; | |
588 | break; | |
589 | ||
3f764659 JJ |
590 | case OPTION_NON_OVERLAPPING_OPD: |
591 | non_overlapping_opd = 1; | |
592 | break; | |
9c1d81c1 AM |
593 | ' |
594 | ||
1f808cd5 AM |
595 | # Put these extra ppc64elf routines in ld_${EMULATION_NAME}_emulation |
596 | # | |
836c6af1 | 597 | LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation |
1f808cd5 | 598 | LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation |
8ded5a0f | 599 | LDEMUL_FINISH=gld${EMULATION_NAME}_finish |
9c1d81c1 | 600 | LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_create_output_section_statements |
fac1652d | 601 | LDEMUL_NEW_VERS_PATTERN=gld${EMULATION_NAME}_new_vers_pattern |