Commit | Line | Data |
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252b5132 | 1 | # This shell script emits a C file. -*- C -*- |
4b95cf5c | 2 | # Copyright (C) 1991-2014 Free Software Foundation, Inc. |
41392f03 | 3 | # |
f96b4a7b | 4 | # This file is part of the GNU Binutils. |
41392f03 AM |
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 | |
f96b4a7b | 8 | # the Free Software Foundation; either version 3 of the License, or |
41392f03 AM |
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 | |
f96b4a7b NC |
18 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | # MA 02110-1301, USA. | |
41392f03 AM |
20 | # |
21 | ||
22 | # This file is sourced from elf32.em, and defines extra arm-elf | |
23 | # specific routines. | |
24 | # | |
a82644e2 | 25 | test -z "$TARGET2_TYPE" && TARGET2_TYPE="rel" |
92b93329 | 26 | fragment <<EOF |
7ca69e9e | 27 | |
906e58ca | 28 | #include "ldctor.h" |
1d022697 PB |
29 | #include "elf/arm.h" |
30 | ||
1db37fe6 | 31 | static char * thumb_entry_symbol = NULL; |
e489d0ae | 32 | static int byteswap_code = 0; |
9c504268 | 33 | static int target1_is_rel = 0${TARGET1_IS_REL}; |
1db37fe6 | 34 | static char * target2_type = "${TARGET2_TYPE}"; |
319850b4 | 35 | static int fix_v4bx = 0; |
33bfe774 | 36 | static int use_blx = 0; |
c6dd86c6 | 37 | static bfd_arm_vfp11_fix vfp11_denorm_fix = BFD_ARM_VFP11_FIX_DEFAULT; |
48229727 | 38 | static int fix_cortex_a8 = -1; |
bf21ed78 | 39 | static int no_enum_size_warning = 0; |
a9dc9481 | 40 | static int no_wchar_size_warning = 0; |
27e55c4d | 41 | static int pic_veneer = 0; |
85fdf906 | 42 | static int merge_exidx_entries = -1; |
2de70689 | 43 | static int fix_arm1176 = 1; |
7ca69e9e | 44 | |
252b5132 | 45 | static void |
0c7a8e5a | 46 | gld${EMULATION_NAME}_before_parse (void) |
252b5132 RH |
47 | { |
48 | #ifndef TARGET_ /* I.e., if not generic. */ | |
5e2f1575 | 49 | ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown); |
252b5132 | 50 | #endif /* not TARGET_ */ |
66be1055 | 51 | input_flags.dynamic = ${DYNAMIC_LINK-TRUE}; |
b34976b6 | 52 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`; |
e2caaa1f | 53 | config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`; |
252b5132 RH |
54 | } |
55 | ||
1220a729 | 56 | static void |
0c7a8e5a | 57 | arm_elf_before_allocation (void) |
1220a729 | 58 | { |
d504ffc8 DJ |
59 | bfd_elf32_arm_set_byteswap_code (&link_info, byteswap_code); |
60 | ||
c6dd86c6 JB |
61 | /* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary |
62 | due to architecture version. */ | |
f13a99db | 63 | bfd_elf32_arm_set_vfp11_fix (link_info.output_bfd, &link_info); |
c6dd86c6 | 64 | |
48229727 JB |
65 | /* Auto-select Cortex-A8 erratum fix if it wasn't explicitly specified. */ |
66 | bfd_elf32_arm_set_cortex_a8_fix (link_info.output_bfd, &link_info); | |
67 | ||
d504ffc8 DJ |
68 | /* We should be able to set the size of the interworking stub section. We |
69 | can't do it until later if we have dynamic sections, though. */ | |
cbc704f3 | 70 | if (elf_hash_table (&link_info)->dynobj == NULL) |
d504ffc8 DJ |
71 | { |
72 | /* Here we rummage through the found bfds to collect glue information. */ | |
73 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
74 | { | |
c6dd86c6 JB |
75 | /* Initialise mapping tables for code/data. */ |
76 | bfd_elf32_arm_init_maps (is->the_bfd); | |
77 | ||
d504ffc8 | 78 | if (!bfd_elf32_arm_process_before_allocation (is->the_bfd, |
c6dd86c6 JB |
79 | &link_info) |
80 | || !bfd_elf32_arm_vfp11_erratum_scan (is->the_bfd, &link_info)) | |
252b5132 RH |
81 | /* xgettext:c-format */ |
82 | einfo (_("Errors encountered processing file %s"), is->filename); | |
d504ffc8 | 83 | } |
3e6b1042 DJ |
84 | |
85 | /* We have seen it all. Allocate it, and carry on. */ | |
86 | bfd_elf32_arm_allocate_interworking_sections (& link_info); | |
d504ffc8 | 87 | } |
252b5132 | 88 | |
063d4ee1 AM |
89 | /* Call the standard elf routine. */ |
90 | gld${EMULATION_NAME}_before_allocation (); | |
252b5132 RH |
91 | } |
92 | ||
906e58ca NC |
93 | /* Fake input file for stubs. */ |
94 | static lang_input_statement_type *stub_file; | |
95 | ||
96 | /* Whether we need to call gldarm_layout_sections_again. */ | |
97 | static int need_laying_out = 0; | |
98 | ||
99 | /* Maximum size of a group of input sections that can be handled by | |
100 | one stub section. A value of +/-1 indicates the bfd back-end | |
101 | should use a suitable default size. */ | |
102 | static bfd_signed_vma group_size = 1; | |
103 | ||
104 | struct hook_stub_info | |
105 | { | |
106 | lang_statement_list_type add; | |
107 | asection *input_section; | |
108 | }; | |
109 | ||
110 | /* Traverse the linker tree to find the spot where the stub goes. */ | |
111 | ||
112 | static bfd_boolean | |
113 | hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp) | |
114 | { | |
115 | lang_statement_union_type *l; | |
116 | bfd_boolean ret; | |
117 | ||
118 | for (; (l = *lp) != NULL; lp = &l->header.next) | |
119 | { | |
120 | switch (l->header.type) | |
121 | { | |
122 | case lang_constructors_statement_enum: | |
123 | ret = hook_in_stub (info, &constructor_list.head); | |
124 | if (ret) | |
125 | return ret; | |
126 | break; | |
127 | ||
128 | case lang_output_section_statement_enum: | |
129 | ret = hook_in_stub (info, | |
130 | &l->output_section_statement.children.head); | |
131 | if (ret) | |
132 | return ret; | |
133 | break; | |
134 | ||
135 | case lang_wild_statement_enum: | |
136 | ret = hook_in_stub (info, &l->wild_statement.children.head); | |
137 | if (ret) | |
138 | return ret; | |
139 | break; | |
140 | ||
141 | case lang_group_statement_enum: | |
142 | ret = hook_in_stub (info, &l->group_statement.children.head); | |
143 | if (ret) | |
144 | return ret; | |
145 | break; | |
146 | ||
147 | case lang_input_section_enum: | |
148 | if (l->input_section.section == info->input_section) | |
149 | { | |
150 | /* We've found our section. Insert the stub immediately | |
07d72278 DJ |
151 | after its associated input section. */ |
152 | *(info->add.tail) = l->header.next; | |
153 | l->header.next = info->add.head; | |
906e58ca NC |
154 | return TRUE; |
155 | } | |
156 | break; | |
157 | ||
158 | case lang_data_statement_enum: | |
159 | case lang_reloc_statement_enum: | |
160 | case lang_object_symbols_statement_enum: | |
161 | case lang_output_statement_enum: | |
162 | case lang_target_statement_enum: | |
163 | case lang_input_statement_enum: | |
164 | case lang_assignment_statement_enum: | |
165 | case lang_padding_statement_enum: | |
166 | case lang_address_statement_enum: | |
167 | case lang_fill_statement_enum: | |
168 | break; | |
169 | ||
170 | default: | |
171 | FAIL (); | |
172 | break; | |
173 | } | |
174 | } | |
175 | return FALSE; | |
176 | } | |
177 | ||
178 | ||
179 | /* Call-back for elf32_arm_size_stubs. */ | |
180 | ||
181 | /* Create a new stub section, and arrange for it to be linked | |
07d72278 | 182 | immediately after INPUT_SECTION. */ |
906e58ca NC |
183 | |
184 | static asection * | |
7a89b94e NC |
185 | elf32_arm_add_stub_section (const char * stub_sec_name, |
186 | asection * input_section, | |
187 | unsigned int alignment_power) | |
906e58ca NC |
188 | { |
189 | asection *stub_sec; | |
190 | flagword flags; | |
191 | asection *output_section; | |
906e58ca NC |
192 | lang_output_section_statement_type *os; |
193 | struct hook_stub_info info; | |
194 | ||
906e58ca NC |
195 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE |
196 | | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP); | |
9795b468 AM |
197 | stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd, |
198 | stub_sec_name, flags); | |
199 | if (stub_sec == NULL) | |
906e58ca NC |
200 | goto err_ret; |
201 | ||
7a89b94e | 202 | bfd_set_section_alignment (stub_file->the_bfd, stub_sec, alignment_power); |
906e58ca NC |
203 | |
204 | output_section = input_section->output_section; | |
24ef1aa7 | 205 | os = lang_output_section_get (output_section); |
906e58ca NC |
206 | |
207 | info.input_section = input_section; | |
208 | lang_list_init (&info.add); | |
b9c361e0 | 209 | lang_add_section (&info.add, stub_sec, NULL, os); |
906e58ca NC |
210 | |
211 | if (info.add.head == NULL) | |
212 | goto err_ret; | |
213 | ||
214 | if (hook_in_stub (&info, &os->children.head)) | |
215 | return stub_sec; | |
216 | ||
217 | err_ret: | |
218 | einfo ("%X%P: can not make stub section: %E\n"); | |
219 | return NULL; | |
220 | } | |
221 | ||
222 | /* Another call-back for elf_arm_size_stubs. */ | |
223 | ||
6f798e5c | 224 | static void |
906e58ca NC |
225 | gldarm_layout_sections_again (void) |
226 | { | |
227 | /* If we have changed sizes of the stub sections, then we need | |
228 | to recalculate all the section offsets. This may mean we need to | |
229 | add even more stubs. */ | |
230 | gld${EMULATION_NAME}_map_segments (TRUE); | |
231 | need_laying_out = -1; | |
232 | } | |
233 | ||
234 | static void | |
235 | build_section_lists (lang_statement_union_type *statement) | |
236 | { | |
237 | if (statement->header.type == lang_input_section_enum) | |
238 | { | |
239 | asection *i = statement->input_section.section; | |
240 | ||
dbaa2011 | 241 | if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS |
906e58ca NC |
242 | && (i->flags & SEC_EXCLUDE) == 0 |
243 | && i->output_section != NULL | |
244 | && i->output_section->owner == link_info.output_bfd) | |
245 | elf32_arm_next_input_section (& link_info, i); | |
246 | } | |
247 | } | |
248 | ||
2468f9c9 PB |
249 | static int |
250 | compare_output_sec_vma (const void *a, const void *b) | |
251 | { | |
252 | asection *asec = *(asection **) a, *bsec = *(asection **) b; | |
253 | asection *aout = asec->output_section, *bout = bsec->output_section; | |
254 | bfd_vma avma, bvma; | |
e2caaa1f | 255 | |
2468f9c9 PB |
256 | /* If there's no output section for some reason, compare equal. */ |
257 | if (!aout || !bout) | |
258 | return 0; | |
e2caaa1f | 259 | |
2468f9c9 PB |
260 | avma = aout->vma + asec->output_offset; |
261 | bvma = bout->vma + bsec->output_offset; | |
e2caaa1f | 262 | |
2468f9c9 PB |
263 | if (avma > bvma) |
264 | return 1; | |
265 | else if (avma < bvma) | |
266 | return -1; | |
e2caaa1f | 267 | |
2468f9c9 PB |
268 | return 0; |
269 | } | |
270 | ||
906e58ca | 271 | static void |
eaeb0a9d | 272 | gld${EMULATION_NAME}_after_allocation (void) |
6f798e5c | 273 | { |
75938853 AM |
274 | int ret; |
275 | ||
2468f9c9 PB |
276 | if (!link_info.relocatable) |
277 | { | |
278 | /* Build a sorted list of input text sections, then use that to process | |
279 | the unwind table index. */ | |
eaeb0a9d | 280 | unsigned int list_size = 10; |
21d799b5 NC |
281 | asection **sec_list = (asection **) |
282 | xmalloc (list_size * sizeof (asection *)); | |
eaeb0a9d AM |
283 | unsigned int sec_count = 0; |
284 | ||
2468f9c9 PB |
285 | LANG_FOR_EACH_INPUT_STATEMENT (is) |
286 | { | |
287 | bfd *abfd = is->the_bfd; | |
288 | asection *sec; | |
e2caaa1f | 289 | |
2468f9c9 PB |
290 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) |
291 | continue; | |
e2caaa1f | 292 | |
2468f9c9 PB |
293 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
294 | { | |
295 | asection *out_sec = sec->output_section; | |
296 | ||
297 | if (out_sec | |
f3711133 | 298 | && elf_section_data (sec) |
2468f9c9 PB |
299 | && elf_section_type (sec) == SHT_PROGBITS |
300 | && (elf_section_flags (sec) & SHF_EXECINSTR) != 0 | |
301 | && (sec->flags & SEC_EXCLUDE) == 0 | |
dbaa2011 | 302 | && sec->sec_info_type != SEC_INFO_TYPE_JUST_SYMS |
2468f9c9 PB |
303 | && out_sec != bfd_abs_section_ptr) |
304 | { | |
305 | if (sec_count == list_size) | |
306 | { | |
307 | list_size *= 2; | |
e2caaa1f | 308 | sec_list = (asection **) |
21d799b5 | 309 | xrealloc (sec_list, list_size * sizeof (asection *)); |
2468f9c9 PB |
310 | } |
311 | ||
312 | sec_list[sec_count++] = sec; | |
313 | } | |
314 | } | |
315 | } | |
e2caaa1f | 316 | |
2468f9c9 | 317 | qsort (sec_list, sec_count, sizeof (asection *), &compare_output_sec_vma); |
e2caaa1f | 318 | |
85fdf906 AH |
319 | if (elf32_arm_fix_exidx_coverage (sec_list, sec_count, &link_info, |
320 | merge_exidx_entries)) | |
2468f9c9 | 321 | need_laying_out = 1; |
e2caaa1f | 322 | |
2468f9c9 PB |
323 | free (sec_list); |
324 | } | |
6f798e5c | 325 | |
906e58ca NC |
326 | /* bfd_elf32_discard_info just plays with debugging sections, |
327 | ie. doesn't affect any code, so we can delay resizing the | |
328 | sections. It's likely we'll resize everything in the process of | |
329 | adding stubs. */ | |
75938853 AM |
330 | ret = bfd_elf_discard_info (link_info.output_bfd, & link_info); |
331 | if (ret < 0) | |
332 | { | |
333 | einfo ("%X%P: .eh_frame/.stab edit: %E\n"); | |
334 | return; | |
335 | } | |
336 | else if (ret > 0) | |
906e58ca NC |
337 | need_laying_out = 1; |
338 | ||
339 | /* If generating a relocatable output file, then we don't | |
340 | have to examine the relocs. */ | |
341 | if (stub_file != NULL && !link_info.relocatable) | |
342 | { | |
75938853 | 343 | ret = elf32_arm_setup_section_lists (link_info.output_bfd, &link_info); |
906e58ca NC |
344 | if (ret != 0) |
345 | { | |
346 | if (ret < 0) | |
347 | { | |
1a51c1a4 | 348 | einfo ("%X%P: could not compute sections lists for stub generation: %E\n"); |
906e58ca NC |
349 | return; |
350 | } | |
351 | ||
352 | lang_for_each_statement (build_section_lists); | |
353 | ||
354 | /* Call into the BFD backend to do the real work. */ | |
355 | if (! elf32_arm_size_stubs (link_info.output_bfd, | |
356 | stub_file->the_bfd, | |
357 | & link_info, | |
358 | group_size, | |
359 | & elf32_arm_add_stub_section, | |
360 | & gldarm_layout_sections_again)) | |
361 | { | |
1a51c1a4 | 362 | einfo ("%X%P: cannot size stub section: %E\n"); |
906e58ca NC |
363 | return; |
364 | } | |
365 | } | |
366 | } | |
367 | ||
368 | if (need_laying_out != -1) | |
369 | gld${EMULATION_NAME}_map_segments (need_laying_out); | |
eaeb0a9d AM |
370 | } |
371 | ||
372 | static void | |
373 | gld${EMULATION_NAME}_finish (void) | |
374 | { | |
375 | struct bfd_link_hash_entry * h; | |
376 | ||
377 | { | |
378 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
379 | { | |
380 | /* Figure out where VFP11 erratum veneers (and the labels returning | |
381 | from same) have been placed. */ | |
382 | bfd_elf32_arm_vfp11_fix_veneer_locations (is->the_bfd, &link_info); | |
383 | } | |
384 | } | |
906e58ca NC |
385 | |
386 | if (! link_info.relocatable) | |
387 | { | |
388 | /* Now build the linker stubs. */ | |
389 | if (stub_file->the_bfd->sections != NULL) | |
390 | { | |
391 | if (! elf32_arm_build_stubs (& link_info)) | |
392 | einfo ("%X%P: can not build stubs: %E\n"); | |
393 | } | |
394 | } | |
395 | ||
396 | finish_default (); | |
c56feb2b | 397 | |
1d022697 PB |
398 | if (thumb_entry_symbol) |
399 | { | |
400 | h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, | |
401 | FALSE, FALSE, TRUE); | |
402 | } | |
403 | else | |
404 | { | |
405 | struct elf_link_hash_entry * eh; | |
406 | ||
407 | if (!entry_symbol.name) | |
408 | return; | |
409 | ||
410 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, | |
411 | FALSE, FALSE, TRUE); | |
412 | eh = (struct elf_link_hash_entry *)h; | |
35fc36a8 | 413 | if (!h || eh->target_internal != ST_BRANCH_TO_THUMB) |
1d022697 PB |
414 | return; |
415 | } | |
0c7a8e5a | 416 | |
6f798e5c NC |
417 | |
418 | if (h != (struct bfd_link_hash_entry *) NULL | |
419 | && (h->type == bfd_link_hash_defined | |
420 | || h->type == bfd_link_hash_defweak) | |
421 | && h->u.def.section->output_section != NULL) | |
422 | { | |
423 | static char buffer[32]; | |
88f7bcd5 | 424 | bfd_vma val; |
0c7a8e5a | 425 | |
88f7bcd5 NC |
426 | /* Special procesing is required for a Thumb entry symbol. The |
427 | bottom bit of its address must be set. */ | |
428 | val = (h->u.def.value | |
f13a99db | 429 | + bfd_get_section_vma (link_info.output_bfd, |
88f7bcd5 NC |
430 | h->u.def.section->output_section) |
431 | + h->u.def.section->output_offset); | |
0c7a8e5a | 432 | |
88f7bcd5 | 433 | val |= 1; |
6f798e5c | 434 | |
88f7bcd5 | 435 | /* Now convert this value into a string and store it in entry_symbol |
0c7a8e5a | 436 | where the lang_finish() function will pick it up. */ |
88f7bcd5 NC |
437 | buffer[0] = '0'; |
438 | buffer[1] = 'x'; | |
0c7a8e5a | 439 | |
88f7bcd5 | 440 | sprintf_vma (buffer + 2, val); |
6f798e5c | 441 | |
1d022697 PB |
442 | if (thumb_entry_symbol != NULL && entry_symbol.name != NULL |
443 | && entry_from_cmdline) | |
88f7bcd5 NC |
444 | einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"), |
445 | thumb_entry_symbol, entry_symbol.name); | |
446 | entry_symbol.name = buffer; | |
6f798e5c | 447 | } |
88f7bcd5 | 448 | else |
6241fe3d | 449 | einfo (_("%P: warning: cannot find thumb start symbol %s\n"), |
88f7bcd5 | 450 | thumb_entry_symbol); |
6f798e5c NC |
451 | } |
452 | ||
bf21ed78 | 453 | /* This is a convenient point to tell BFD about target specific flags. |
3674e28a PB |
454 | After the output has been created, but before inputs are read. */ |
455 | static void | |
456 | arm_elf_create_output_section_statements (void) | |
457 | { | |
b8976b05 NC |
458 | if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL) |
459 | { | |
460 | /* The arm backend needs special fields in the output hash structure. | |
461 | These will only be created if the output format is an arm format, | |
462 | hence we do not support linking and changing output formats at the | |
463 | same time. Use a link followed by objcopy to change output formats. */ | |
464 | einfo ("%F%X%P: error: Cannot change output format whilst linking ARM binaries.\n"); | |
465 | return; | |
466 | } | |
467 | ||
f13a99db AM |
468 | bfd_elf32_arm_set_target_relocs (link_info.output_bfd, &link_info, |
469 | target1_is_rel, | |
bf21ed78 | 470 | target2_type, fix_v4bx, use_blx, |
27e55c4d | 471 | vfp11_denorm_fix, no_enum_size_warning, |
a9dc9481 | 472 | no_wchar_size_warning, |
e2caaa1f | 473 | pic_veneer, fix_cortex_a8, |
2de70689 | 474 | fix_arm1176); |
906e58ca NC |
475 | |
476 | stub_file = lang_add_input_file ("linker stubs", | |
477 | lang_input_file_is_fake_enum, | |
478 | NULL); | |
479 | stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd); | |
480 | if (stub_file->the_bfd == NULL | |
481 | || ! bfd_set_arch_mach (stub_file->the_bfd, | |
482 | bfd_get_arch (link_info.output_bfd), | |
483 | bfd_get_mach (link_info.output_bfd))) | |
484 | { | |
485 | einfo ("%X%P: can not create BFD %E\n"); | |
486 | return; | |
487 | } | |
e2caaa1f | 488 | |
906e58ca NC |
489 | stub_file->the_bfd->flags |= BFD_LINKER_CREATED; |
490 | ldlang_add_file (stub_file); | |
3e6b1042 DJ |
491 | |
492 | /* Also use the stub file for stubs placed in a single output section. */ | |
493 | bfd_elf32_arm_add_glue_sections_to_bfd (stub_file->the_bfd, &link_info); | |
494 | bfd_elf32_arm_get_bfd_for_interworking (stub_file->the_bfd, &link_info); | |
906e58ca NC |
495 | } |
496 | ||
497 | /* Avoid processing the fake stub_file in vercheck, stat_needed and | |
498 | check_needed routines. */ | |
499 | ||
500 | static void (*real_func) (lang_input_statement_type *); | |
501 | ||
502 | static void arm_for_each_input_file_wrapper (lang_input_statement_type *l) | |
503 | { | |
504 | if (l != stub_file) | |
505 | (*real_func) (l); | |
3674e28a PB |
506 | } |
507 | ||
906e58ca NC |
508 | static void |
509 | arm_lang_for_each_input_file (void (*func) (lang_input_statement_type *)) | |
510 | { | |
511 | real_func = func; | |
512 | lang_for_each_input_file (&arm_for_each_input_file_wrapper); | |
513 | } | |
514 | ||
515 | #define lang_for_each_input_file arm_lang_for_each_input_file | |
516 | ||
252b5132 RH |
517 | EOF |
518 | ||
41392f03 AM |
519 | # Define some shell vars to insert bits of code into the standard elf |
520 | # parse_args and list_options functions. | |
521 | # | |
522 | PARSE_AND_LIST_PROLOGUE=' | |
523 | #define OPTION_THUMB_ENTRY 301 | |
e489d0ae | 524 | #define OPTION_BE8 302 |
9c504268 PB |
525 | #define OPTION_TARGET1_REL 303 |
526 | #define OPTION_TARGET1_ABS 304 | |
3674e28a | 527 | #define OPTION_TARGET2 305 |
33bfe774 JB |
528 | #define OPTION_FIX_V4BX 306 |
529 | #define OPTION_USE_BLX 307 | |
c6dd86c6 | 530 | #define OPTION_VFP11_DENORM_FIX 308 |
bf21ed78 | 531 | #define OPTION_NO_ENUM_SIZE_WARNING 309 |
27e55c4d | 532 | #define OPTION_PIC_VENEER 310 |
845b51d6 | 533 | #define OPTION_FIX_V4BX_INTERWORKING 311 |
8c45e5ec | 534 | #define OPTION_STUBGROUP_SIZE 312 |
a9dc9481 | 535 | #define OPTION_NO_WCHAR_SIZE_WARNING 313 |
48229727 JB |
536 | #define OPTION_FIX_CORTEX_A8 314 |
537 | #define OPTION_NO_FIX_CORTEX_A8 315 | |
8c45e5ec | 538 | #define OPTION_NO_MERGE_EXIDX_ENTRIES 316 |
2de70689 MGD |
539 | #define OPTION_FIX_ARM1176 317 |
540 | #define OPTION_NO_FIX_ARM1176 318 | |
8c45e5ec | 541 | #define OPTION_LONG_PLT 319 |
41392f03 | 542 | ' |
252b5132 | 543 | |
ef5bdbd1 | 544 | PARSE_AND_LIST_SHORTOPTS=p |
252b5132 | 545 | |
41392f03 AM |
546 | PARSE_AND_LIST_LONGOPTS=' |
547 | { "no-pipeline-knowledge", no_argument, NULL, '\'p\''}, | |
548 | { "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, | |
e489d0ae | 549 | { "be8", no_argument, NULL, OPTION_BE8}, |
9c504268 PB |
550 | { "target1-rel", no_argument, NULL, OPTION_TARGET1_REL}, |
551 | { "target1-abs", no_argument, NULL, OPTION_TARGET1_ABS}, | |
3674e28a | 552 | { "target2", required_argument, NULL, OPTION_TARGET2}, |
319850b4 | 553 | { "fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX}, |
845b51d6 | 554 | { "fix-v4bx-interworking", no_argument, NULL, OPTION_FIX_V4BX_INTERWORKING}, |
33bfe774 | 555 | { "use-blx", no_argument, NULL, OPTION_USE_BLX}, |
c6dd86c6 | 556 | { "vfp11-denorm-fix", required_argument, NULL, OPTION_VFP11_DENORM_FIX}, |
bf21ed78 | 557 | { "no-enum-size-warning", no_argument, NULL, OPTION_NO_ENUM_SIZE_WARNING}, |
27e55c4d | 558 | { "pic-veneer", no_argument, NULL, OPTION_PIC_VENEER}, |
906e58ca | 559 | { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, |
a9dc9481 | 560 | { "no-wchar-size-warning", no_argument, NULL, OPTION_NO_WCHAR_SIZE_WARNING}, |
48229727 JB |
561 | { "fix-cortex-a8", no_argument, NULL, OPTION_FIX_CORTEX_A8 }, |
562 | { "no-fix-cortex-a8", no_argument, NULL, OPTION_NO_FIX_CORTEX_A8 }, | |
85fdf906 | 563 | { "no-merge-exidx-entries", no_argument, NULL, OPTION_NO_MERGE_EXIDX_ENTRIES }, |
2de70689 MGD |
564 | { "fix-arm1176", no_argument, NULL, OPTION_FIX_ARM1176 }, |
565 | { "no-fix-arm1176", no_argument, NULL, OPTION_NO_FIX_ARM1176 }, | |
1db37fe6 | 566 | { "long-plt", no_argument, NULL, OPTION_LONG_PLT }, |
41392f03 | 567 | ' |
252b5132 | 568 | |
41392f03 | 569 | PARSE_AND_LIST_OPTIONS=' |
442996ee | 570 | fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n")); |
4a977a31 | 571 | fprintf (file, _(" --be8 Output BE8 format image\n")); |
f8266dc4 NC |
572 | fprintf (file, _(" --target1-rel Interpret R_ARM_TARGET1 as R_ARM_REL32\n")); |
573 | fprintf (file, _(" --target1-abs Interpret R_ARM_TARGET1 as R_ARM_ABS32\n")); | |
442996ee AM |
574 | fprintf (file, _(" --target2=<type> Specify definition of R_ARM_TARGET2\n")); |
575 | fprintf (file, _(" --fix-v4bx Rewrite BX rn as MOV pc, rn for ARMv4\n")); | |
845b51d6 | 576 | fprintf (file, _(" --fix-v4bx-interworking Rewrite BX rn branch to ARMv4 interworking veneer\n")); |
442996ee AM |
577 | fprintf (file, _(" --use-blx Enable use of BLX instructions\n")); |
578 | fprintf (file, _(" --vfp11-denorm-fix Specify how to fix VFP11 denorm erratum\n")); | |
893dcb0e | 579 | fprintf (file, _(" --no-enum-size-warning Don'\''t warn about objects with incompatible\n" |
442996ee | 580 | " enum sizes\n")); |
a272e28c | 581 | fprintf (file, _(" --no-wchar-size-warning Don'\''t warn about objects with incompatible\n" |
a9dc9481 | 582 | " wchar_t sizes\n")); |
442996ee | 583 | fprintf (file, _(" --pic-veneer Always generate PIC interworking veneers\n")); |
1db37fe6 YG |
584 | fprintf (file, _(" --long-plt Generate long .plt entries\n" |
585 | " to handle large .plt/.got displacements\n")); | |
906e58ca | 586 | fprintf (file, _("\ |
a272e28c NC |
587 | --stub-group-size=N Maximum size of a group of input sections that\n\ |
588 | can be handled by one stub section. A negative\n\ | |
589 | value locates all stubs after their branches\n\ | |
590 | (with a group size of -N), while a positive\n\ | |
591 | value allows two groups of input sections, one\n\ | |
592 | before, and one after each stub section.\n\ | |
593 | Values of +/-1 indicate the linker should\n\ | |
594 | choose suitable defaults.\n")); | |
48229727 | 595 | fprintf (file, _(" --[no-]fix-cortex-a8 Disable/enable Cortex-A8 Thumb-2 branch erratum fix\n")); |
85fdf906 | 596 | fprintf (file, _(" --no-merge-exidx-entries Disable merging exidx entries\n")); |
2de70689 | 597 | fprintf (file, _(" --[no-]fix-arm1176 Disable/enable ARM1176 BLX immediate erratum fix\n")); |
41392f03 | 598 | ' |
252b5132 | 599 | |
41392f03 AM |
600 | PARSE_AND_LIST_ARGS_CASES=' |
601 | case '\'p\'': | |
dea514f5 | 602 | /* Only here for backwards compatibility. */ |
41392f03 | 603 | break; |
252b5132 | 604 | |
41392f03 AM |
605 | case OPTION_THUMB_ENTRY: |
606 | thumb_entry_symbol = optarg; | |
607 | break; | |
e489d0ae PB |
608 | |
609 | case OPTION_BE8: | |
610 | byteswap_code = 1; | |
611 | break; | |
9c504268 PB |
612 | |
613 | case OPTION_TARGET1_REL: | |
614 | target1_is_rel = 1; | |
615 | break; | |
616 | ||
617 | case OPTION_TARGET1_ABS: | |
618 | target1_is_rel = 0; | |
619 | break; | |
3674e28a PB |
620 | |
621 | case OPTION_TARGET2: | |
622 | target2_type = optarg; | |
623 | break; | |
319850b4 JB |
624 | |
625 | case OPTION_FIX_V4BX: | |
626 | fix_v4bx = 1; | |
627 | break; | |
33bfe774 | 628 | |
845b51d6 PB |
629 | case OPTION_FIX_V4BX_INTERWORKING: |
630 | fix_v4bx = 2; | |
631 | break; | |
632 | ||
33bfe774 JB |
633 | case OPTION_USE_BLX: |
634 | use_blx = 1; | |
635 | break; | |
92b93329 | 636 | |
c6dd86c6 JB |
637 | case OPTION_VFP11_DENORM_FIX: |
638 | if (strcmp (optarg, "none") == 0) | |
639 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE; | |
640 | else if (strcmp (optarg, "scalar") == 0) | |
641 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR; | |
642 | else if (strcmp (optarg, "vector") == 0) | |
643 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR; | |
644 | else | |
645 | einfo (_("Unrecognized VFP11 fix type '\''%s'\''.\n"), optarg); | |
646 | break; | |
bf21ed78 MS |
647 | |
648 | case OPTION_NO_ENUM_SIZE_WARNING: | |
649 | no_enum_size_warning = 1; | |
650 | break; | |
27e55c4d | 651 | |
a9dc9481 JM |
652 | case OPTION_NO_WCHAR_SIZE_WARNING: |
653 | no_wchar_size_warning = 1; | |
654 | break; | |
655 | ||
27e55c4d PB |
656 | case OPTION_PIC_VENEER: |
657 | pic_veneer = 1; | |
658 | break; | |
906e58ca NC |
659 | |
660 | case OPTION_STUBGROUP_SIZE: | |
661 | { | |
662 | const char *end; | |
663 | ||
664 | group_size = bfd_scan_vma (optarg, &end, 0); | |
665 | if (*end) | |
666 | einfo (_("%P%F: invalid number `%s'\''\n"), optarg); | |
667 | } | |
668 | break; | |
48229727 JB |
669 | |
670 | case OPTION_FIX_CORTEX_A8: | |
671 | fix_cortex_a8 = 1; | |
672 | break; | |
673 | ||
674 | case OPTION_NO_FIX_CORTEX_A8: | |
675 | fix_cortex_a8 = 0; | |
676 | break; | |
85fdf906 AH |
677 | |
678 | case OPTION_NO_MERGE_EXIDX_ENTRIES: | |
679 | merge_exidx_entries = 0; | |
2de70689 | 680 | break; |
85fdf906 | 681 | |
2de70689 MGD |
682 | case OPTION_FIX_ARM1176: |
683 | fix_arm1176 = 1; | |
684 | break; | |
685 | ||
686 | case OPTION_NO_FIX_ARM1176: | |
687 | fix_arm1176 = 0; | |
688 | break; | |
1db37fe6 YG |
689 | |
690 | case OPTION_LONG_PLT: | |
691 | bfd_elf32_arm_use_long_plt (); | |
692 | break; | |
41392f03 | 693 | ' |
252b5132 | 694 | |
3e6b1042 | 695 | # We have our own before_allocation etc. functions, but they call |
41392f03 | 696 | # the standard routines, so give them a different name. |
41392f03 | 697 | LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation |
eaeb0a9d | 698 | LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation |
3674e28a | 699 | LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=arm_elf_create_output_section_statements |
252b5132 | 700 | |
41392f03 AM |
701 | # Replace the elf before_parse function with our own. |
702 | LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse | |
252b5132 | 703 | |
41392f03 | 704 | # Call the extra arm-elf function |
906e58ca | 705 | LDEMUL_FINISH=gld${EMULATION_NAME}_finish |