Commit | Line | Data |
---|---|---|
252b5132 | 1 | # This shell script emits a C file. -*- C -*- |
aef6203b | 2 | # Copyright 1991, 1993, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
f13a99db | 3 | # 2004, 2005, 2007, 2008 |
41392f03 AM |
4 | # Free Software Foundation, Inc. |
5 | # | |
f96b4a7b | 6 | # This file is part of the GNU Binutils. |
41392f03 AM |
7 | # |
8 | # This program is free software; you can redistribute it and/or modify | |
9 | # it under the terms of the GNU General Public License as published by | |
f96b4a7b | 10 | # the Free Software Foundation; either version 3 of the License, or |
41392f03 AM |
11 | # (at your option) any later version. |
12 | # | |
13 | # This program is distributed in the hope that it will be useful, | |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | # GNU General Public License for more details. | |
17 | # | |
18 | # You should have received a copy of the GNU General Public License | |
19 | # along with this program; if not, write to the Free Software | |
f96b4a7b NC |
20 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | # MA 02110-1301, USA. | |
41392f03 AM |
22 | # |
23 | ||
24 | # This file is sourced from elf32.em, and defines extra arm-elf | |
25 | # specific routines. | |
26 | # | |
a82644e2 | 27 | test -z "$TARGET2_TYPE" && TARGET2_TYPE="rel" |
92b93329 | 28 | fragment <<EOF |
7ca69e9e | 29 | |
906e58ca | 30 | #include "ldctor.h" |
1d022697 PB |
31 | #include "elf/arm.h" |
32 | ||
88f7bcd5 NC |
33 | static char *thumb_entry_symbol = NULL; |
34 | static bfd *bfd_for_interwork; | |
e489d0ae | 35 | static int byteswap_code = 0; |
9c504268 | 36 | static int target1_is_rel = 0${TARGET1_IS_REL}; |
3674e28a | 37 | static char *target2_type = "${TARGET2_TYPE}"; |
319850b4 | 38 | static int fix_v4bx = 0; |
33bfe774 | 39 | static int use_blx = 0; |
c6dd86c6 | 40 | static bfd_arm_vfp11_fix vfp11_denorm_fix = BFD_ARM_VFP11_FIX_DEFAULT; |
bf21ed78 | 41 | static int no_enum_size_warning = 0; |
27e55c4d | 42 | static int pic_veneer = 0; |
7ca69e9e | 43 | |
252b5132 | 44 | static void |
0c7a8e5a | 45 | gld${EMULATION_NAME}_before_parse (void) |
252b5132 RH |
46 | { |
47 | #ifndef TARGET_ /* I.e., if not generic. */ | |
5e2f1575 | 48 | ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown); |
252b5132 | 49 | #endif /* not TARGET_ */ |
b34976b6 AM |
50 | config.dynamic_link = ${DYNAMIC_LINK-TRUE}; |
51 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`; | |
252b5132 RH |
52 | } |
53 | ||
1220a729 | 54 | static void |
0c7a8e5a | 55 | arm_elf_after_open (void) |
1220a729 | 56 | { |
f13a99db | 57 | if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL) |
1220a729 | 58 | { |
f11523b0 NC |
59 | /* The arm backend needs special fields in the output hash structure. |
60 | These will only be created if the output format is an arm format, | |
61 | hence we do not support linking and changing output formats at the | |
62 | same time. Use a link followed by objcopy to change output formats. */ | |
63 | einfo ("%F%X%P: error: cannot change output format whilst linking ARM binaries\n"); | |
64 | return; | |
1220a729 NC |
65 | } |
66 | ||
f11523b0 NC |
67 | { |
68 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
69 | { | |
8afb0e02 | 70 | bfd_elf32_arm_add_glue_sections_to_bfd (is->the_bfd, & link_info); |
f11523b0 NC |
71 | } |
72 | } | |
73 | ||
41392f03 AM |
74 | /* Call the standard elf routine. */ |
75 | gld${EMULATION_NAME}_after_open (); | |
1220a729 NC |
76 | } |
77 | ||
8afb0e02 | 78 | static void |
0c7a8e5a | 79 | arm_elf_set_bfd_for_interworking (lang_statement_union_type *statement) |
8afb0e02 | 80 | { |
7b986e99 | 81 | if (statement->header.type == lang_input_section_enum) |
8afb0e02 | 82 | { |
88f7bcd5 | 83 | asection *i = statement->input_section.section; |
8afb0e02 | 84 | |
7b986e99 AM |
85 | if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag |
86 | && (i->flags & SEC_EXCLUDE) == 0) | |
8afb0e02 | 87 | { |
7b986e99 AM |
88 | asection *output_section = i->output_section; |
89 | ||
f13a99db | 90 | ASSERT (output_section->owner == link_info.output_bfd); |
7b986e99 AM |
91 | |
92 | /* Don't attach the interworking stubs to a dynamic object, to | |
93 | an empty section, etc. */ | |
94 | if ((output_section->flags & SEC_HAS_CONTENTS) != 0 | |
95 | && (i->flags & SEC_NEVER_LOAD) == 0 | |
96 | && ! (i->owner->flags & DYNAMIC) | |
97 | && ! i->owner->output_has_begun) | |
98 | { | |
99 | bfd_for_interwork = i->owner; | |
100 | bfd_for_interwork->output_has_begun = TRUE; | |
101 | } | |
8afb0e02 NC |
102 | } |
103 | } | |
104 | } | |
1220a729 | 105 | |
1220a729 | 106 | static void |
0c7a8e5a | 107 | arm_elf_before_allocation (void) |
1220a729 | 108 | { |
88f7bcd5 | 109 | bfd *tem; |
8afb0e02 | 110 | |
2004afbc NC |
111 | if (link_info.input_bfds != NULL) |
112 | { | |
113 | /* The interworking bfd must be the last one in the link. */ | |
114 | bfd_for_interwork = NULL; | |
115 | for (tem = link_info.input_bfds; tem != NULL; tem = tem->link_next) | |
b34976b6 | 116 | tem->output_has_begun = FALSE; |
252b5132 | 117 | |
2004afbc | 118 | lang_for_each_statement (arm_elf_set_bfd_for_interworking); |
2004afbc | 119 | for (tem = link_info.input_bfds; tem != NULL; tem = tem->link_next) |
b34976b6 | 120 | tem->output_has_begun = FALSE; |
8afb0e02 | 121 | |
06aa7234 NC |
122 | /* If bfd_for_interwork is NULL, then there are no loadable sections |
123 | with real contents to be linked, so we are not going to have to | |
124 | create any interworking stubs, so it is OK not to call | |
125 | bfd_elf32_arm_get_bfd_for_interworking. */ | |
126 | if (bfd_for_interwork != NULL) | |
127 | bfd_elf32_arm_get_bfd_for_interworking (bfd_for_interwork, &link_info); | |
2004afbc | 128 | } |
8afb0e02 | 129 | |
d504ffc8 DJ |
130 | bfd_elf32_arm_set_byteswap_code (&link_info, byteswap_code); |
131 | ||
c6dd86c6 JB |
132 | /* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary |
133 | due to architecture version. */ | |
f13a99db | 134 | bfd_elf32_arm_set_vfp11_fix (link_info.output_bfd, &link_info); |
c6dd86c6 | 135 | |
d504ffc8 DJ |
136 | /* We should be able to set the size of the interworking stub section. We |
137 | can't do it until later if we have dynamic sections, though. */ | |
138 | if (! elf_hash_table (&link_info)->dynamic_sections_created) | |
139 | { | |
140 | /* Here we rummage through the found bfds to collect glue information. */ | |
141 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
142 | { | |
c6dd86c6 JB |
143 | /* Initialise mapping tables for code/data. */ |
144 | bfd_elf32_arm_init_maps (is->the_bfd); | |
145 | ||
d504ffc8 | 146 | if (!bfd_elf32_arm_process_before_allocation (is->the_bfd, |
c6dd86c6 JB |
147 | &link_info) |
148 | || !bfd_elf32_arm_vfp11_erratum_scan (is->the_bfd, &link_info)) | |
252b5132 RH |
149 | /* xgettext:c-format */ |
150 | einfo (_("Errors encountered processing file %s"), is->filename); | |
d504ffc8 DJ |
151 | } |
152 | } | |
252b5132 | 153 | |
063d4ee1 AM |
154 | /* Call the standard elf routine. */ |
155 | gld${EMULATION_NAME}_before_allocation (); | |
156 | ||
8afb0e02 | 157 | /* We have seen it all. Allocate it, and carry on. */ |
252b5132 RH |
158 | bfd_elf32_arm_allocate_interworking_sections (& link_info); |
159 | } | |
160 | ||
c6dd86c6 JB |
161 | static void |
162 | arm_elf_after_allocation (void) | |
163 | { | |
164 | /* Call the standard elf routine. */ | |
165 | after_allocation_default (); | |
166 | ||
167 | { | |
168 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
169 | { | |
170 | /* Figure out where VFP11 erratum veneers (and the labels returning | |
171 | from same) have been placed. */ | |
172 | bfd_elf32_arm_vfp11_fix_veneer_locations (is->the_bfd, &link_info); | |
173 | } | |
174 | } | |
175 | } | |
176 | ||
906e58ca NC |
177 | /* Fake input file for stubs. */ |
178 | static lang_input_statement_type *stub_file; | |
179 | ||
180 | /* Whether we need to call gldarm_layout_sections_again. */ | |
181 | static int need_laying_out = 0; | |
182 | ||
183 | /* Maximum size of a group of input sections that can be handled by | |
184 | one stub section. A value of +/-1 indicates the bfd back-end | |
185 | should use a suitable default size. */ | |
186 | static bfd_signed_vma group_size = 1; | |
187 | ||
188 | struct hook_stub_info | |
189 | { | |
190 | lang_statement_list_type add; | |
191 | asection *input_section; | |
192 | }; | |
193 | ||
194 | /* Traverse the linker tree to find the spot where the stub goes. */ | |
195 | ||
196 | static bfd_boolean | |
197 | hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp) | |
198 | { | |
199 | lang_statement_union_type *l; | |
200 | bfd_boolean ret; | |
201 | ||
202 | for (; (l = *lp) != NULL; lp = &l->header.next) | |
203 | { | |
204 | switch (l->header.type) | |
205 | { | |
206 | case lang_constructors_statement_enum: | |
207 | ret = hook_in_stub (info, &constructor_list.head); | |
208 | if (ret) | |
209 | return ret; | |
210 | break; | |
211 | ||
212 | case lang_output_section_statement_enum: | |
213 | ret = hook_in_stub (info, | |
214 | &l->output_section_statement.children.head); | |
215 | if (ret) | |
216 | return ret; | |
217 | break; | |
218 | ||
219 | case lang_wild_statement_enum: | |
220 | ret = hook_in_stub (info, &l->wild_statement.children.head); | |
221 | if (ret) | |
222 | return ret; | |
223 | break; | |
224 | ||
225 | case lang_group_statement_enum: | |
226 | ret = hook_in_stub (info, &l->group_statement.children.head); | |
227 | if (ret) | |
228 | return ret; | |
229 | break; | |
230 | ||
231 | case lang_input_section_enum: | |
232 | if (l->input_section.section == info->input_section) | |
233 | { | |
234 | /* We've found our section. Insert the stub immediately | |
235 | before its associated input section. */ | |
236 | *lp = info->add.head; | |
237 | *(info->add.tail) = l; | |
238 | return TRUE; | |
239 | } | |
240 | break; | |
241 | ||
242 | case lang_data_statement_enum: | |
243 | case lang_reloc_statement_enum: | |
244 | case lang_object_symbols_statement_enum: | |
245 | case lang_output_statement_enum: | |
246 | case lang_target_statement_enum: | |
247 | case lang_input_statement_enum: | |
248 | case lang_assignment_statement_enum: | |
249 | case lang_padding_statement_enum: | |
250 | case lang_address_statement_enum: | |
251 | case lang_fill_statement_enum: | |
252 | break; | |
253 | ||
254 | default: | |
255 | FAIL (); | |
256 | break; | |
257 | } | |
258 | } | |
259 | return FALSE; | |
260 | } | |
261 | ||
262 | ||
263 | /* Call-back for elf32_arm_size_stubs. */ | |
264 | ||
265 | /* Create a new stub section, and arrange for it to be linked | |
266 | immediately before INPUT_SECTION. */ | |
267 | ||
268 | static asection * | |
269 | elf32_arm_add_stub_section (const char *stub_sec_name, | |
270 | asection *input_section) | |
271 | { | |
272 | asection *stub_sec; | |
273 | flagword flags; | |
274 | asection *output_section; | |
275 | const char *secname; | |
276 | lang_output_section_statement_type *os; | |
277 | struct hook_stub_info info; | |
278 | ||
906e58ca NC |
279 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE |
280 | | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP); | |
9795b468 AM |
281 | stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd, |
282 | stub_sec_name, flags); | |
283 | if (stub_sec == NULL) | |
906e58ca NC |
284 | goto err_ret; |
285 | ||
286 | bfd_set_section_alignment (stub_file->the_bfd, stub_sec, 3); | |
287 | ||
288 | output_section = input_section->output_section; | |
289 | secname = bfd_get_section_name (output_section->owner, output_section); | |
290 | os = lang_output_section_find (secname); | |
291 | ||
292 | info.input_section = input_section; | |
293 | lang_list_init (&info.add); | |
294 | lang_add_section (&info.add, stub_sec, os); | |
295 | ||
296 | if (info.add.head == NULL) | |
297 | goto err_ret; | |
298 | ||
299 | if (hook_in_stub (&info, &os->children.head)) | |
300 | return stub_sec; | |
301 | ||
302 | err_ret: | |
303 | einfo ("%X%P: can not make stub section: %E\n"); | |
304 | return NULL; | |
305 | } | |
306 | ||
307 | /* Another call-back for elf_arm_size_stubs. */ | |
308 | ||
6f798e5c | 309 | static void |
906e58ca NC |
310 | gldarm_layout_sections_again (void) |
311 | { | |
312 | /* If we have changed sizes of the stub sections, then we need | |
313 | to recalculate all the section offsets. This may mean we need to | |
314 | add even more stubs. */ | |
315 | gld${EMULATION_NAME}_map_segments (TRUE); | |
316 | need_laying_out = -1; | |
317 | } | |
318 | ||
319 | static void | |
320 | build_section_lists (lang_statement_union_type *statement) | |
321 | { | |
322 | if (statement->header.type == lang_input_section_enum) | |
323 | { | |
324 | asection *i = statement->input_section.section; | |
325 | ||
326 | if (!((lang_input_statement_type *) i->owner->usrdata)->just_syms_flag | |
327 | && (i->flags & SEC_EXCLUDE) == 0 | |
328 | && i->output_section != NULL | |
329 | && i->output_section->owner == link_info.output_bfd) | |
330 | elf32_arm_next_input_section (& link_info, i); | |
331 | } | |
332 | } | |
333 | ||
334 | static void | |
335 | gld${EMULATION_NAME}_finish (void) | |
6f798e5c NC |
336 | { |
337 | struct bfd_link_hash_entry * h; | |
338 | ||
906e58ca NC |
339 | /* bfd_elf32_discard_info just plays with debugging sections, |
340 | ie. doesn't affect any code, so we can delay resizing the | |
341 | sections. It's likely we'll resize everything in the process of | |
342 | adding stubs. */ | |
343 | if (bfd_elf_discard_info (link_info.output_bfd, & link_info)) | |
344 | need_laying_out = 1; | |
345 | ||
346 | /* If generating a relocatable output file, then we don't | |
347 | have to examine the relocs. */ | |
348 | if (stub_file != NULL && !link_info.relocatable) | |
349 | { | |
350 | int ret = elf32_arm_setup_section_lists (link_info.output_bfd, & link_info); | |
351 | ||
352 | if (ret != 0) | |
353 | { | |
354 | if (ret < 0) | |
355 | { | |
1a51c1a4 | 356 | einfo ("%X%P: could not compute sections lists for stub generation: %E\n"); |
906e58ca NC |
357 | return; |
358 | } | |
359 | ||
360 | lang_for_each_statement (build_section_lists); | |
361 | ||
362 | /* Call into the BFD backend to do the real work. */ | |
363 | if (! elf32_arm_size_stubs (link_info.output_bfd, | |
364 | stub_file->the_bfd, | |
365 | & link_info, | |
366 | group_size, | |
367 | & elf32_arm_add_stub_section, | |
368 | & gldarm_layout_sections_again)) | |
369 | { | |
1a51c1a4 | 370 | einfo ("%X%P: cannot size stub section: %E\n"); |
906e58ca NC |
371 | return; |
372 | } | |
373 | } | |
374 | } | |
375 | ||
376 | if (need_laying_out != -1) | |
377 | gld${EMULATION_NAME}_map_segments (need_laying_out); | |
378 | ||
379 | if (! link_info.relocatable) | |
380 | { | |
381 | /* Now build the linker stubs. */ | |
382 | if (stub_file->the_bfd->sections != NULL) | |
383 | { | |
384 | if (! elf32_arm_build_stubs (& link_info)) | |
385 | einfo ("%X%P: can not build stubs: %E\n"); | |
386 | } | |
387 | } | |
388 | ||
389 | finish_default (); | |
c56feb2b | 390 | |
1d022697 PB |
391 | if (thumb_entry_symbol) |
392 | { | |
393 | h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, | |
394 | FALSE, FALSE, TRUE); | |
395 | } | |
396 | else | |
397 | { | |
398 | struct elf_link_hash_entry * eh; | |
399 | ||
400 | if (!entry_symbol.name) | |
401 | return; | |
402 | ||
403 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, | |
404 | FALSE, FALSE, TRUE); | |
405 | eh = (struct elf_link_hash_entry *)h; | |
406 | if (!h || ELF_ST_TYPE(eh->type) != STT_ARM_TFUNC) | |
407 | return; | |
408 | } | |
0c7a8e5a | 409 | |
6f798e5c NC |
410 | |
411 | if (h != (struct bfd_link_hash_entry *) NULL | |
412 | && (h->type == bfd_link_hash_defined | |
413 | || h->type == bfd_link_hash_defweak) | |
414 | && h->u.def.section->output_section != NULL) | |
415 | { | |
416 | static char buffer[32]; | |
88f7bcd5 | 417 | bfd_vma val; |
0c7a8e5a | 418 | |
88f7bcd5 NC |
419 | /* Special procesing is required for a Thumb entry symbol. The |
420 | bottom bit of its address must be set. */ | |
421 | val = (h->u.def.value | |
f13a99db | 422 | + bfd_get_section_vma (link_info.output_bfd, |
88f7bcd5 NC |
423 | h->u.def.section->output_section) |
424 | + h->u.def.section->output_offset); | |
0c7a8e5a | 425 | |
88f7bcd5 | 426 | val |= 1; |
6f798e5c | 427 | |
88f7bcd5 | 428 | /* Now convert this value into a string and store it in entry_symbol |
0c7a8e5a | 429 | where the lang_finish() function will pick it up. */ |
88f7bcd5 NC |
430 | buffer[0] = '0'; |
431 | buffer[1] = 'x'; | |
0c7a8e5a | 432 | |
88f7bcd5 | 433 | sprintf_vma (buffer + 2, val); |
6f798e5c | 434 | |
1d022697 PB |
435 | if (thumb_entry_symbol != NULL && entry_symbol.name != NULL |
436 | && entry_from_cmdline) | |
88f7bcd5 NC |
437 | einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"), |
438 | thumb_entry_symbol, entry_symbol.name); | |
439 | entry_symbol.name = buffer; | |
6f798e5c | 440 | } |
88f7bcd5 | 441 | else |
6241fe3d | 442 | einfo (_("%P: warning: cannot find thumb start symbol %s\n"), |
88f7bcd5 | 443 | thumb_entry_symbol); |
6f798e5c NC |
444 | } |
445 | ||
bf21ed78 | 446 | /* This is a convenient point to tell BFD about target specific flags. |
3674e28a PB |
447 | After the output has been created, but before inputs are read. */ |
448 | static void | |
449 | arm_elf_create_output_section_statements (void) | |
450 | { | |
f13a99db AM |
451 | bfd_elf32_arm_set_target_relocs (link_info.output_bfd, &link_info, |
452 | target1_is_rel, | |
bf21ed78 | 453 | target2_type, fix_v4bx, use_blx, |
27e55c4d PB |
454 | vfp11_denorm_fix, no_enum_size_warning, |
455 | pic_veneer); | |
906e58ca NC |
456 | |
457 | stub_file = lang_add_input_file ("linker stubs", | |
458 | lang_input_file_is_fake_enum, | |
459 | NULL); | |
460 | stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd); | |
461 | if (stub_file->the_bfd == NULL | |
462 | || ! bfd_set_arch_mach (stub_file->the_bfd, | |
463 | bfd_get_arch (link_info.output_bfd), | |
464 | bfd_get_mach (link_info.output_bfd))) | |
465 | { | |
466 | einfo ("%X%P: can not create BFD %E\n"); | |
467 | return; | |
468 | } | |
469 | ||
470 | stub_file->the_bfd->flags |= BFD_LINKER_CREATED; | |
471 | ldlang_add_file (stub_file); | |
472 | } | |
473 | ||
474 | /* Avoid processing the fake stub_file in vercheck, stat_needed and | |
475 | check_needed routines. */ | |
476 | ||
477 | static void (*real_func) (lang_input_statement_type *); | |
478 | ||
479 | static void arm_for_each_input_file_wrapper (lang_input_statement_type *l) | |
480 | { | |
481 | if (l != stub_file) | |
482 | (*real_func) (l); | |
3674e28a PB |
483 | } |
484 | ||
906e58ca NC |
485 | static void |
486 | arm_lang_for_each_input_file (void (*func) (lang_input_statement_type *)) | |
487 | { | |
488 | real_func = func; | |
489 | lang_for_each_input_file (&arm_for_each_input_file_wrapper); | |
490 | } | |
491 | ||
492 | #define lang_for_each_input_file arm_lang_for_each_input_file | |
493 | ||
252b5132 RH |
494 | EOF |
495 | ||
41392f03 AM |
496 | # Define some shell vars to insert bits of code into the standard elf |
497 | # parse_args and list_options functions. | |
498 | # | |
499 | PARSE_AND_LIST_PROLOGUE=' | |
500 | #define OPTION_THUMB_ENTRY 301 | |
e489d0ae | 501 | #define OPTION_BE8 302 |
9c504268 PB |
502 | #define OPTION_TARGET1_REL 303 |
503 | #define OPTION_TARGET1_ABS 304 | |
3674e28a | 504 | #define OPTION_TARGET2 305 |
33bfe774 JB |
505 | #define OPTION_FIX_V4BX 306 |
506 | #define OPTION_USE_BLX 307 | |
c6dd86c6 | 507 | #define OPTION_VFP11_DENORM_FIX 308 |
bf21ed78 | 508 | #define OPTION_NO_ENUM_SIZE_WARNING 309 |
27e55c4d | 509 | #define OPTION_PIC_VENEER 310 |
845b51d6 | 510 | #define OPTION_FIX_V4BX_INTERWORKING 311 |
906e58ca | 511 | #define OPTION_STUBGROUP_SIZE 312 |
41392f03 | 512 | ' |
252b5132 | 513 | |
ef5bdbd1 | 514 | PARSE_AND_LIST_SHORTOPTS=p |
252b5132 | 515 | |
41392f03 AM |
516 | PARSE_AND_LIST_LONGOPTS=' |
517 | { "no-pipeline-knowledge", no_argument, NULL, '\'p\''}, | |
518 | { "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, | |
e489d0ae | 519 | { "be8", no_argument, NULL, OPTION_BE8}, |
9c504268 PB |
520 | { "target1-rel", no_argument, NULL, OPTION_TARGET1_REL}, |
521 | { "target1-abs", no_argument, NULL, OPTION_TARGET1_ABS}, | |
3674e28a | 522 | { "target2", required_argument, NULL, OPTION_TARGET2}, |
319850b4 | 523 | { "fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX}, |
845b51d6 | 524 | { "fix-v4bx-interworking", no_argument, NULL, OPTION_FIX_V4BX_INTERWORKING}, |
33bfe774 | 525 | { "use-blx", no_argument, NULL, OPTION_USE_BLX}, |
c6dd86c6 | 526 | { "vfp11-denorm-fix", required_argument, NULL, OPTION_VFP11_DENORM_FIX}, |
bf21ed78 | 527 | { "no-enum-size-warning", no_argument, NULL, OPTION_NO_ENUM_SIZE_WARNING}, |
27e55c4d | 528 | { "pic-veneer", no_argument, NULL, OPTION_PIC_VENEER}, |
906e58ca | 529 | { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, |
41392f03 | 530 | ' |
252b5132 | 531 | |
41392f03 | 532 | PARSE_AND_LIST_OPTIONS=' |
442996ee AM |
533 | fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n")); |
534 | fprintf (file, _(" --be8 Oputput BE8 format image\n")); | |
535 | fprintf (file, _(" --target1=rel Interpret R_ARM_TARGET1 as R_ARM_REL32\n")); | |
536 | fprintf (file, _(" --target1=abs Interpret R_ARM_TARGET1 as R_ARM_ABS32\n")); | |
537 | fprintf (file, _(" --target2=<type> Specify definition of R_ARM_TARGET2\n")); | |
538 | fprintf (file, _(" --fix-v4bx Rewrite BX rn as MOV pc, rn for ARMv4\n")); | |
845b51d6 | 539 | fprintf (file, _(" --fix-v4bx-interworking Rewrite BX rn branch to ARMv4 interworking veneer\n")); |
442996ee AM |
540 | fprintf (file, _(" --use-blx Enable use of BLX instructions\n")); |
541 | fprintf (file, _(" --vfp11-denorm-fix Specify how to fix VFP11 denorm erratum\n")); | |
542 | fprintf (file, _(" --no-enum-size-warning Don'\''t warn about objects with incompatible" | |
543 | " enum sizes\n")); | |
544 | fprintf (file, _(" --pic-veneer Always generate PIC interworking veneers\n")); | |
906e58ca NC |
545 | fprintf (file, _("\ |
546 | --stub-group-size=N Maximum size of a group of input sections that can be\n\ | |
547 | handled by one stub section. A negative value\n\ | |
548 | locates all stubs before their branches (with a\n\ | |
549 | group size of -N), while a positive value allows\n\ | |
550 | two groups of input sections, one before, and one\n\ | |
551 | after each stub section. Values of +/-1 indicate\n\ | |
552 | the linker should choose suitable defaults.\n" | |
553 | )); | |
41392f03 | 554 | ' |
252b5132 | 555 | |
41392f03 AM |
556 | PARSE_AND_LIST_ARGS_CASES=' |
557 | case '\'p\'': | |
dea514f5 | 558 | /* Only here for backwards compatibility. */ |
41392f03 | 559 | break; |
252b5132 | 560 | |
41392f03 AM |
561 | case OPTION_THUMB_ENTRY: |
562 | thumb_entry_symbol = optarg; | |
563 | break; | |
e489d0ae PB |
564 | |
565 | case OPTION_BE8: | |
566 | byteswap_code = 1; | |
567 | break; | |
9c504268 PB |
568 | |
569 | case OPTION_TARGET1_REL: | |
570 | target1_is_rel = 1; | |
571 | break; | |
572 | ||
573 | case OPTION_TARGET1_ABS: | |
574 | target1_is_rel = 0; | |
575 | break; | |
3674e28a PB |
576 | |
577 | case OPTION_TARGET2: | |
578 | target2_type = optarg; | |
579 | break; | |
319850b4 JB |
580 | |
581 | case OPTION_FIX_V4BX: | |
582 | fix_v4bx = 1; | |
583 | break; | |
33bfe774 | 584 | |
845b51d6 PB |
585 | case OPTION_FIX_V4BX_INTERWORKING: |
586 | fix_v4bx = 2; | |
587 | break; | |
588 | ||
33bfe774 JB |
589 | case OPTION_USE_BLX: |
590 | use_blx = 1; | |
591 | break; | |
92b93329 | 592 | |
c6dd86c6 JB |
593 | case OPTION_VFP11_DENORM_FIX: |
594 | if (strcmp (optarg, "none") == 0) | |
595 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE; | |
596 | else if (strcmp (optarg, "scalar") == 0) | |
597 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR; | |
598 | else if (strcmp (optarg, "vector") == 0) | |
599 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR; | |
600 | else | |
601 | einfo (_("Unrecognized VFP11 fix type '\''%s'\''.\n"), optarg); | |
602 | break; | |
bf21ed78 MS |
603 | |
604 | case OPTION_NO_ENUM_SIZE_WARNING: | |
605 | no_enum_size_warning = 1; | |
606 | break; | |
27e55c4d PB |
607 | |
608 | case OPTION_PIC_VENEER: | |
609 | pic_veneer = 1; | |
610 | break; | |
906e58ca NC |
611 | |
612 | case OPTION_STUBGROUP_SIZE: | |
613 | { | |
614 | const char *end; | |
615 | ||
616 | group_size = bfd_scan_vma (optarg, &end, 0); | |
617 | if (*end) | |
618 | einfo (_("%P%F: invalid number `%s'\''\n"), optarg); | |
619 | } | |
620 | break; | |
41392f03 | 621 | ' |
252b5132 | 622 | |
41392f03 AM |
623 | # We have our own after_open and before_allocation functions, but they call |
624 | # the standard routines, so give them a different name. | |
625 | LDEMUL_AFTER_OPEN=arm_elf_after_open | |
626 | LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation | |
c6dd86c6 | 627 | LDEMUL_AFTER_ALLOCATION=arm_elf_after_allocation |
3674e28a | 628 | LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=arm_elf_create_output_section_statements |
252b5132 | 629 | |
41392f03 AM |
630 | # Replace the elf before_parse function with our own. |
631 | LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse | |
252b5132 | 632 | |
41392f03 | 633 | # Call the extra arm-elf function |
906e58ca | 634 | LDEMUL_FINISH=gld${EMULATION_NAME}_finish |