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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 | |
18 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
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 AM |
34 | |
35 | /* Whether we need to call ppc_layout_sections_again. */ | |
1f808cd5 AM |
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 | { |
c5614fa4 AM |
105 | if (!no_opd_opt |
106 | && !ppc64_elf_edit_opd (output_bfd, &link_info, 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. */ | |
113 | lang_size_sections (stat_ptr->head, abs_output_section, | |
7d8a3a28 | 114 | &stat_ptr->head, 0, 0, NULL, TRUE); |
a015f5ec AM |
115 | |
116 | if (!ppc64_elf_tls_optimize (output_bfd, &link_info)) | |
92b7a70f | 117 | einfo ("%X%P: TLS problem %E\n"); |
a015f5ec | 118 | |
83490352 AM |
119 | /* We must not cache anything from the preliminary sizing. */ |
120 | elf_tdata (output_bfd)->program_header_size = 0; | |
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 | |
228 | | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP); | |
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); | |
238 | lang_add_section (&info.add, stub_sec, os, stub_file); | |
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. */ | |
261 | need_laying_out = 0; | |
262 | ||
263 | lang_reset_memory_regions (); | |
264 | ||
265 | /* Resize the sections. */ | |
266 | lang_size_sections (stat_ptr->head, abs_output_section, | |
7d8a3a28 | 267 | &stat_ptr->head, 0, 0, NULL, TRUE); |
9c1d81c1 AM |
268 | |
269 | /* Recalculate TOC base. */ | |
270 | ldemul_after_allocation (); | |
271 | ||
272 | /* Do the assignments again. */ | |
7d8a3a28 | 273 | lang_do_assignments (stat_ptr->head, abs_output_section, NULL, 0); |
9c1d81c1 AM |
274 | } |
275 | ||
1f808cd5 AM |
276 | |
277 | /* Call the back-end function to set TOC base after we have placed all | |
278 | the sections. */ | |
279 | static void | |
7d8a3a28 | 280 | gld${EMULATION_NAME}_after_allocation (void) |
1f808cd5 | 281 | { |
1049f94e | 282 | if (!link_info.relocatable) |
805fc799 | 283 | _bfd_set_gp_value (output_bfd, ppc64_elf_toc (output_bfd)); |
1f808cd5 AM |
284 | } |
285 | ||
9c1d81c1 | 286 | |
0b9a4d73 | 287 | static void |
7d8a3a28 | 288 | build_toc_list (lang_statement_union_type *statement) |
0b9a4d73 AM |
289 | { |
290 | if (statement->header.type == lang_input_section_enum | |
291 | && !statement->input_section.ifile->just_syms_flag | |
57ceae94 | 292 | && (statement->input_section.section->flags & SEC_EXCLUDE) == 0 |
0b9a4d73 | 293 | && statement->input_section.section->output_section == toc_section) |
7d8a3a28 | 294 | ppc64_elf_next_toc_section (&link_info, statement->input_section.section); |
0b9a4d73 AM |
295 | } |
296 | ||
297 | ||
9c1d81c1 | 298 | static void |
7d8a3a28 | 299 | build_section_lists (lang_statement_union_type *statement) |
9c1d81c1 AM |
300 | { |
301 | if (statement->header.type == lang_input_section_enum | |
805fc799 | 302 | && !statement->input_section.ifile->just_syms_flag |
57ceae94 | 303 | && (statement->input_section.section->flags & SEC_EXCLUDE) == 0 |
805fc799 AM |
304 | && statement->input_section.section->output_section != NULL |
305 | && statement->input_section.section->output_section->owner == output_bfd) | |
9c1d81c1 | 306 | { |
6bc8652b AM |
307 | if (!ppc64_elf_next_input_section (&link_info, |
308 | statement->input_section.section)) | |
309 | einfo ("%X%P: can not size stub section: %E\n"); | |
9c1d81c1 AM |
310 | } |
311 | } | |
312 | ||
fac1652d | 313 | |
9c1d81c1 | 314 | /* Final emulation specific call. */ |
1f808cd5 AM |
315 | |
316 | static void | |
b1ab9777 | 317 | ppc_finish (void) |
1f808cd5 | 318 | { |
1e281515 AM |
319 | /* e_entry on PowerPC64 points to the function descriptor for |
320 | _start. If _start is missing, default to the first function | |
321 | descriptor in the .opd section. */ | |
322 | entry_section = ".opd"; | |
323 | ||
7a945db6 | 324 | /* bfd_elf_discard_info just plays with debugging sections, |
1f808cd5 AM |
325 | ie. doesn't affect any code, so we can delay resizing the |
326 | sections. It's likely we'll resize everything in the process of | |
9c1d81c1 | 327 | adding stubs. */ |
7a945db6 | 328 | if (bfd_elf_discard_info (output_bfd, &link_info)) |
1f808cd5 AM |
329 | need_laying_out = 1; |
330 | ||
836c6af1 AM |
331 | /* If generating a relocatable output file, then we don't have any |
332 | stubs. */ | |
1049f94e | 333 | if (stub_file != NULL && !link_info.relocatable) |
1f808cd5 | 334 | { |
4c52953f AM |
335 | int ret = ppc64_elf_setup_section_lists (output_bfd, &link_info, |
336 | no_multi_toc); | |
92b7a70f AM |
337 | if (ret < 0) |
338 | einfo ("%X%P: can not size stub section: %E\n"); | |
339 | else if (ret > 0) | |
9c1d81c1 | 340 | { |
68f8ff14 | 341 | toc_section = bfd_get_section_by_name (output_bfd, ".got"); |
0b9a4d73 AM |
342 | if (toc_section != NULL) |
343 | lang_for_each_statement (build_toc_list); | |
344 | ||
345 | ppc64_elf_reinit_toc (output_bfd, &link_info); | |
346 | ||
836c6af1 | 347 | lang_for_each_statement (build_section_lists); |
9c1d81c1 | 348 | |
836c6af1 AM |
349 | /* Call into the BFD backend to do the real work. */ |
350 | if (!ppc64_elf_size_stubs (output_bfd, | |
836c6af1 AM |
351 | &link_info, |
352 | group_size, | |
353 | &ppc_add_stub_section, | |
354 | &ppc_layout_sections_again)) | |
92b7a70f | 355 | einfo ("%X%P: can not size stub section: %E\n"); |
1f808cd5 | 356 | } |
9c1d81c1 | 357 | } |
1f808cd5 | 358 | |
9c1d81c1 AM |
359 | if (need_laying_out) |
360 | ppc_layout_sections_again (); | |
1f808cd5 | 361 | |
40e45c8b AM |
362 | if (link_info.relocatable) |
363 | { | |
364 | asection *toc = bfd_get_section_by_name (output_bfd, ".toc"); | |
365 | if (toc != NULL | |
366 | && bfd_section_size (output_bfd, toc) > 0x10000) | |
367 | einfo ("%X%P: TOC section size exceeds 64k\n"); | |
368 | } | |
369 | ||
68f8ff14 | 370 | if (stub_added) |
9c1d81c1 | 371 | { |
bda6c678 AM |
372 | char *msg = NULL; |
373 | char *line, *endline; | |
374 | ||
a23d8409 | 375 | emit_stub_syms |= link_info.emitrelocations; |
bda6c678 AM |
376 | if (!ppc64_elf_build_stubs (emit_stub_syms, &link_info, |
377 | config.stats ? &msg : NULL)) | |
9c1d81c1 | 378 | einfo ("%X%P: can not build stubs: %E\n"); |
bda6c678 AM |
379 | |
380 | for (line = msg; line != NULL; line = endline) | |
381 | { | |
382 | endline = strchr (line, '\n'); | |
383 | if (endline != NULL) | |
384 | *endline++ = '\0'; | |
385 | fprintf (stderr, "%s: %s\n", program_name, line); | |
386 | } | |
387 | if (msg != NULL) | |
388 | free (msg); | |
9c1d81c1 | 389 | } |
99877b66 AM |
390 | |
391 | ppc64_elf_restore_symbols (&link_info); | |
b1ab9777 | 392 | gld${EMULATION_NAME}_finish (); |
9c1d81c1 | 393 | } |
1f808cd5 | 394 | |
76dc39fe | 395 | |
fac1652d AM |
396 | /* Add a pattern matching ".foo" for every "foo" in a version script. |
397 | ||
398 | The reason for doing this is that many shared library version | |
399 | scripts export a selected set of functions or data symbols, forcing | |
400 | others local. eg. | |
401 | ||
402 | . VERS_1 { | |
403 | . global: | |
404 | . this; that; some; thing; | |
405 | . local: | |
406 | . *; | |
407 | . }; | |
408 | ||
409 | To make the above work for PowerPC64, we need to export ".this", | |
410 | ".that" and so on, otherwise only the function descriptor syms are | |
411 | exported. Lack of an exported function code sym may cause a | |
412 | definition to be pulled in from a static library. */ | |
413 | ||
7d8a3a28 AM |
414 | static struct bfd_elf_version_expr * |
415 | gld${EMULATION_NAME}_new_vers_pattern (struct bfd_elf_version_expr *entry) | |
fac1652d AM |
416 | { |
417 | struct bfd_elf_version_expr *dot_entry; | |
fac1652d AM |
418 | unsigned int len; |
419 | char *dot_pat; | |
420 | ||
108ba305 | 421 | if (!dotsyms || entry->pattern[0] == '*' || entry->pattern[0] == '.') |
fac1652d AM |
422 | return entry; |
423 | ||
7d8a3a28 | 424 | dot_entry = xmalloc (sizeof *dot_entry); |
108ba305 | 425 | *dot_entry = *entry; |
fac1652d AM |
426 | dot_entry->next = entry; |
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; | |
c4e33880 AM |
432 | if (entry->symbol != NULL) |
433 | { | |
434 | len = strlen (entry->symbol) + 2; | |
435 | dot_pat = xmalloc (len); | |
436 | dot_pat[0] = '.'; | |
437 | memcpy (dot_pat + 1, entry->symbol, len - 1); | |
438 | dot_entry->symbol = dot_pat; | |
439 | } | |
fac1652d AM |
440 | return dot_entry; |
441 | } | |
442 | ||
443 | ||
9c1d81c1 AM |
444 | /* Avoid processing the fake stub_file in vercheck, stat_needed and |
445 | check_needed routines. */ | |
1f808cd5 | 446 | |
7d8a3a28 | 447 | static void (*real_func) (lang_input_statement_type *); |
1f808cd5 | 448 | |
7d8a3a28 | 449 | static void ppc_for_each_input_file_wrapper (lang_input_statement_type *l) |
9c1d81c1 AM |
450 | { |
451 | if (l != stub_file) | |
452 | (*real_func) (l); | |
1f808cd5 | 453 | } |
9c1d81c1 AM |
454 | |
455 | static void | |
7d8a3a28 | 456 | ppc_lang_for_each_input_file (void (*func) (lang_input_statement_type *)) |
9c1d81c1 AM |
457 | { |
458 | real_func = func; | |
459 | lang_for_each_input_file (&ppc_for_each_input_file_wrapper); | |
460 | } | |
461 | ||
462 | #define lang_for_each_input_file ppc_lang_for_each_input_file | |
463 | ||
1f808cd5 AM |
464 | EOF |
465 | ||
9c1d81c1 AM |
466 | # Define some shell vars to insert bits of code into the standard elf |
467 | # parse_args and list_options functions. | |
468 | # | |
469 | PARSE_AND_LIST_PROLOGUE=' | |
470 | #define OPTION_STUBGROUP_SIZE 301 | |
0b9a4d73 AM |
471 | #define OPTION_STUBSYMS (OPTION_STUBGROUP_SIZE + 1) |
472 | #define OPTION_DOTSYMS (OPTION_STUBSYMS + 1) | |
fac1652d | 473 | #define OPTION_NO_DOTSYMS (OPTION_DOTSYMS + 1) |
e5096e3f | 474 | #define OPTION_NO_TLS_OPT (OPTION_NO_DOTSYMS + 1) |
c5614fa4 AM |
475 | #define OPTION_NO_OPD_OPT (OPTION_NO_TLS_OPT + 1) |
476 | #define OPTION_NO_TOC_OPT (OPTION_NO_OPD_OPT + 1) | |
4c52953f AM |
477 | #define OPTION_NO_MULTI_TOC (OPTION_NO_TOC_OPT + 1) |
478 | #define OPTION_NON_OVERLAPPING_OPD (OPTION_NO_MULTI_TOC + 1) | |
9c1d81c1 AM |
479 | ' |
480 | ||
9c1d81c1 AM |
481 | PARSE_AND_LIST_LONGOPTS=' |
482 | { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, | |
0b9a4d73 | 483 | { "emit-stub-syms", no_argument, NULL, OPTION_STUBSYMS }, |
fac1652d AM |
484 | { "dotsyms", no_argument, NULL, OPTION_DOTSYMS }, |
485 | { "no-dotsyms", no_argument, NULL, OPTION_NO_DOTSYMS }, | |
e5096e3f | 486 | { "no-tls-optimize", no_argument, NULL, OPTION_NO_TLS_OPT }, |
c5614fa4 AM |
487 | { "no-opd-optimize", no_argument, NULL, OPTION_NO_OPD_OPT }, |
488 | { "no-toc-optimize", no_argument, NULL, OPTION_NO_TOC_OPT }, | |
4c52953f | 489 | { "no-multi-toc", no_argument, NULL, OPTION_NO_MULTI_TOC }, |
3f764659 | 490 | { "non-overlapping-opd", no_argument, NULL, OPTION_NON_OVERLAPPING_OPD }, |
9c1d81c1 AM |
491 | ' |
492 | ||
493 | PARSE_AND_LIST_OPTIONS=' | |
494 | fprintf (file, _("\ | |
495 | --stub-group-size=N Maximum size of a group of input sections that can be\n\ | |
496 | handled by one stub section. A negative value\n\ | |
497 | locates all stubs before their branches (with a\n\ | |
498 | group size of -N), while a positive value allows\n\ | |
499 | two groups of input sections, one before, and one\n\ | |
500 | after each stub section. Values of +/-1 indicate\n\ | |
501 | the linker should choose suitable defaults.\n" | |
502 | )); | |
fac1652d | 503 | fprintf (file, _("\ |
0b9a4d73 AM |
504 | --emit-stub-syms Label linker stubs with a symbol.\n" |
505 | )); | |
506 | fprintf (file, _("\ | |
fac1652d AM |
507 | --dotsyms For every version pattern \"foo\" in a version script,\n\ |
508 | add \".foo\" so that function code symbols are\n\ | |
509 | treated the same as function descriptor symbols.\n\ | |
510 | Defaults to on.\n" | |
511 | )); | |
512 | fprintf (file, _("\ | |
513 | --no-dotsyms Don'\''t do anything special in version scripts.\n" | |
514 | )); | |
e5096e3f AM |
515 | fprintf (file, _("\ |
516 | --no-tls-optimize Don'\''t try to optimize TLS accesses.\n" | |
517 | )); | |
3f764659 | 518 | fprintf (file, _("\ |
c5614fa4 AM |
519 | --no-opd-optimize Don'\''t optimize the OPD section.\n" |
520 | )); | |
521 | fprintf (file, _("\ | |
522 | --no-toc-optimize Don'\''t optimize the TOC section.\n" | |
523 | )); | |
524 | fprintf (file, _("\ | |
4c52953f AM |
525 | --no-multi-toc Disallow automatic multiple toc sections.\n" |
526 | )); | |
527 | fprintf (file, _("\ | |
3f764659 JJ |
528 | --non-overlapping-opd Canonicalize .opd, so that there are no overlapping\n\ |
529 | .opd entries.\n" | |
530 | )); | |
9c1d81c1 AM |
531 | ' |
532 | ||
533 | PARSE_AND_LIST_ARGS_CASES=' | |
534 | case OPTION_STUBGROUP_SIZE: | |
535 | { | |
536 | const char *end; | |
537 | group_size = bfd_scan_vma (optarg, &end, 0); | |
538 | if (*end) | |
539 | einfo (_("%P%F: invalid number `%s'\''\n"), optarg); | |
540 | } | |
541 | break; | |
fac1652d | 542 | |
0b9a4d73 AM |
543 | case OPTION_STUBSYMS: |
544 | emit_stub_syms = 1; | |
545 | break; | |
546 | ||
fac1652d | 547 | case OPTION_DOTSYMS: |
e5096e3f | 548 | dotsyms = 1; |
fac1652d AM |
549 | break; |
550 | ||
551 | case OPTION_NO_DOTSYMS: | |
e5096e3f AM |
552 | dotsyms = 0; |
553 | break; | |
554 | ||
555 | case OPTION_NO_TLS_OPT: | |
c5614fa4 AM |
556 | no_tls_opt = 1; |
557 | break; | |
558 | ||
559 | case OPTION_NO_OPD_OPT: | |
560 | no_opd_opt = 1; | |
561 | break; | |
562 | ||
563 | case OPTION_NO_TOC_OPT: | |
564 | no_toc_opt = 1; | |
fac1652d | 565 | break; |
3f764659 | 566 | |
4c52953f AM |
567 | case OPTION_NO_MULTI_TOC: |
568 | no_multi_toc = 1; | |
569 | break; | |
570 | ||
3f764659 JJ |
571 | case OPTION_NON_OVERLAPPING_OPD: |
572 | non_overlapping_opd = 1; | |
573 | break; | |
9c1d81c1 AM |
574 | ' |
575 | ||
1f808cd5 AM |
576 | # Put these extra ppc64elf routines in ld_${EMULATION_NAME}_emulation |
577 | # | |
836c6af1 | 578 | LDEMUL_BEFORE_ALLOCATION=ppc_before_allocation |
1f808cd5 | 579 | LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation |
b1ab9777 | 580 | LDEMUL_FINISH=ppc_finish |
9c1d81c1 | 581 | LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=ppc_create_output_section_statements |
fac1652d | 582 | LDEMUL_NEW_VERS_PATTERN=gld${EMULATION_NAME}_new_vers_pattern |