Commit | Line | Data |
---|---|---|
252b5132 | 1 | # This shell script emits a C file. -*- C -*- |
6f2750fe | 2 | # Copyright (C) 1991-2016 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 = "${TARGET2_TYPE}"; |
319850b4 | 35 | static int fix_v4bx = 0; |
33bfe774 | 36 | static int use_blx = 0; |
c6dd86c6 | 37 | static bfd_arm_vfp11_fix vfp11_denorm_fix = BFD_ARM_VFP11_FIX_DEFAULT; |
a504d23a | 38 | static bfd_arm_stm32l4xx_fix stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_NONE; |
48229727 | 39 | static int fix_cortex_a8 = -1; |
bf21ed78 | 40 | static int no_enum_size_warning = 0; |
a9dc9481 | 41 | static int no_wchar_size_warning = 0; |
27e55c4d | 42 | static int pic_veneer = 0; |
85fdf906 | 43 | static int merge_exidx_entries = -1; |
2de70689 | 44 | static int fix_arm1176 = 1; |
7ca69e9e | 45 | |
252b5132 | 46 | static void |
0c7a8e5a | 47 | gld${EMULATION_NAME}_before_parse (void) |
252b5132 RH |
48 | { |
49 | #ifndef TARGET_ /* I.e., if not generic. */ | |
5e2f1575 | 50 | ldfile_set_output_arch ("`echo ${ARCH}`", bfd_arch_unknown); |
252b5132 | 51 | #endif /* not TARGET_ */ |
66be1055 | 52 | input_flags.dynamic = ${DYNAMIC_LINK-TRUE}; |
b34976b6 | 53 | config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`; |
e2caaa1f | 54 | config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`; |
252b5132 RH |
55 | } |
56 | ||
3940d2c3 NC |
57 | static void |
58 | gld${EMULATION_NAME}_set_symbols (void) | |
59 | { | |
60 | /* PR 19106: The section resizing code in gldarmelf_after_allocation | |
61 | is effectively the same as relaxation, so prevent early memory | |
62 | region checks which produce bogus error messages. | |
63 | Note - this test has nothing to do with symbols. It is just here | |
64 | because this is the first emulation routine that is called after | |
65 | the command line has been parsed. */ | |
66 | if (!bfd_link_relocatable (&link_info)) | |
67 | TARGET_ENABLE_RELAXATION; | |
68 | } | |
69 | ||
1220a729 | 70 | static void |
0c7a8e5a | 71 | arm_elf_before_allocation (void) |
1220a729 | 72 | { |
d504ffc8 DJ |
73 | bfd_elf32_arm_set_byteswap_code (&link_info, byteswap_code); |
74 | ||
c6dd86c6 JB |
75 | /* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary |
76 | due to architecture version. */ | |
f13a99db | 77 | bfd_elf32_arm_set_vfp11_fix (link_info.output_bfd, &link_info); |
c6dd86c6 | 78 | |
a504d23a LA |
79 | /* Choose type of STM32L4XX erratum fix, or warn if specified fix is |
80 | unnecessary due to architecture version. */ | |
81 | bfd_elf32_arm_set_stm32l4xx_fix (link_info.output_bfd, &link_info); | |
82 | ||
48229727 JB |
83 | /* Auto-select Cortex-A8 erratum fix if it wasn't explicitly specified. */ |
84 | bfd_elf32_arm_set_cortex_a8_fix (link_info.output_bfd, &link_info); | |
85 | ||
d504ffc8 DJ |
86 | /* We should be able to set the size of the interworking stub section. We |
87 | can't do it until later if we have dynamic sections, though. */ | |
cbc704f3 | 88 | if (elf_hash_table (&link_info)->dynobj == NULL) |
d504ffc8 DJ |
89 | { |
90 | /* Here we rummage through the found bfds to collect glue information. */ | |
91 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
92 | { | |
c6dd86c6 JB |
93 | /* Initialise mapping tables for code/data. */ |
94 | bfd_elf32_arm_init_maps (is->the_bfd); | |
95 | ||
d504ffc8 | 96 | if (!bfd_elf32_arm_process_before_allocation (is->the_bfd, |
c6dd86c6 | 97 | &link_info) |
a504d23a LA |
98 | || !bfd_elf32_arm_vfp11_erratum_scan (is->the_bfd, &link_info) |
99 | || !bfd_elf32_arm_stm32l4xx_erratum_scan (is->the_bfd, | |
100 | &link_info)) | |
252b5132 RH |
101 | /* xgettext:c-format */ |
102 | einfo (_("Errors encountered processing file %s"), is->filename); | |
d504ffc8 | 103 | } |
3e6b1042 DJ |
104 | |
105 | /* We have seen it all. Allocate it, and carry on. */ | |
106 | bfd_elf32_arm_allocate_interworking_sections (& link_info); | |
d504ffc8 | 107 | } |
252b5132 | 108 | |
063d4ee1 AM |
109 | /* Call the standard elf routine. */ |
110 | gld${EMULATION_NAME}_before_allocation (); | |
252b5132 RH |
111 | } |
112 | ||
906e58ca NC |
113 | /* Fake input file for stubs. */ |
114 | static lang_input_statement_type *stub_file; | |
115 | ||
116 | /* Whether we need to call gldarm_layout_sections_again. */ | |
117 | static int need_laying_out = 0; | |
118 | ||
119 | /* Maximum size of a group of input sections that can be handled by | |
120 | one stub section. A value of +/-1 indicates the bfd back-end | |
121 | should use a suitable default size. */ | |
122 | static bfd_signed_vma group_size = 1; | |
123 | ||
124 | struct hook_stub_info | |
125 | { | |
126 | lang_statement_list_type add; | |
127 | asection *input_section; | |
128 | }; | |
129 | ||
130 | /* Traverse the linker tree to find the spot where the stub goes. */ | |
131 | ||
132 | static bfd_boolean | |
133 | hook_in_stub (struct hook_stub_info *info, lang_statement_union_type **lp) | |
134 | { | |
135 | lang_statement_union_type *l; | |
136 | bfd_boolean ret; | |
137 | ||
138 | for (; (l = *lp) != NULL; lp = &l->header.next) | |
139 | { | |
140 | switch (l->header.type) | |
141 | { | |
142 | case lang_constructors_statement_enum: | |
143 | ret = hook_in_stub (info, &constructor_list.head); | |
144 | if (ret) | |
145 | return ret; | |
146 | break; | |
147 | ||
148 | case lang_output_section_statement_enum: | |
149 | ret = hook_in_stub (info, | |
150 | &l->output_section_statement.children.head); | |
151 | if (ret) | |
152 | return ret; | |
153 | break; | |
154 | ||
155 | case lang_wild_statement_enum: | |
156 | ret = hook_in_stub (info, &l->wild_statement.children.head); | |
157 | if (ret) | |
158 | return ret; | |
159 | break; | |
160 | ||
161 | case lang_group_statement_enum: | |
162 | ret = hook_in_stub (info, &l->group_statement.children.head); | |
163 | if (ret) | |
164 | return ret; | |
165 | break; | |
166 | ||
167 | case lang_input_section_enum: | |
168 | if (l->input_section.section == info->input_section) | |
169 | { | |
170 | /* We've found our section. Insert the stub immediately | |
07d72278 DJ |
171 | after its associated input section. */ |
172 | *(info->add.tail) = l->header.next; | |
173 | l->header.next = info->add.head; | |
906e58ca NC |
174 | return TRUE; |
175 | } | |
176 | break; | |
177 | ||
178 | case lang_data_statement_enum: | |
179 | case lang_reloc_statement_enum: | |
180 | case lang_object_symbols_statement_enum: | |
181 | case lang_output_statement_enum: | |
182 | case lang_target_statement_enum: | |
183 | case lang_input_statement_enum: | |
184 | case lang_assignment_statement_enum: | |
185 | case lang_padding_statement_enum: | |
186 | case lang_address_statement_enum: | |
187 | case lang_fill_statement_enum: | |
188 | break; | |
189 | ||
190 | default: | |
191 | FAIL (); | |
192 | break; | |
193 | } | |
194 | } | |
195 | return FALSE; | |
196 | } | |
197 | ||
198 | ||
199 | /* Call-back for elf32_arm_size_stubs. */ | |
200 | ||
201 | /* Create a new stub section, and arrange for it to be linked | |
07d72278 | 202 | immediately after INPUT_SECTION. */ |
906e58ca NC |
203 | |
204 | static asection * | |
7a89b94e NC |
205 | elf32_arm_add_stub_section (const char * stub_sec_name, |
206 | asection * input_section, | |
207 | unsigned int alignment_power) | |
906e58ca NC |
208 | { |
209 | asection *stub_sec; | |
210 | flagword flags; | |
211 | asection *output_section; | |
906e58ca NC |
212 | lang_output_section_statement_type *os; |
213 | struct hook_stub_info info; | |
214 | ||
906e58ca NC |
215 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE |
216 | | SEC_HAS_CONTENTS | SEC_RELOC | SEC_IN_MEMORY | SEC_KEEP); | |
9795b468 AM |
217 | stub_sec = bfd_make_section_anyway_with_flags (stub_file->the_bfd, |
218 | stub_sec_name, flags); | |
219 | if (stub_sec == NULL) | |
906e58ca NC |
220 | goto err_ret; |
221 | ||
7a89b94e | 222 | bfd_set_section_alignment (stub_file->the_bfd, stub_sec, alignment_power); |
906e58ca NC |
223 | |
224 | output_section = input_section->output_section; | |
24ef1aa7 | 225 | os = lang_output_section_get (output_section); |
906e58ca NC |
226 | |
227 | info.input_section = input_section; | |
228 | lang_list_init (&info.add); | |
b9c361e0 | 229 | lang_add_section (&info.add, stub_sec, NULL, os); |
906e58ca NC |
230 | |
231 | if (info.add.head == NULL) | |
232 | goto err_ret; | |
233 | ||
234 | if (hook_in_stub (&info, &os->children.head)) | |
235 | return stub_sec; | |
236 | ||
237 | err_ret: | |
238 | einfo ("%X%P: can not make stub section: %E\n"); | |
239 | return NULL; | |
240 | } | |
241 | ||
242 | /* Another call-back for elf_arm_size_stubs. */ | |
243 | ||
6f798e5c | 244 | static void |
906e58ca NC |
245 | gldarm_layout_sections_again (void) |
246 | { | |
247 | /* If we have changed sizes of the stub sections, then we need | |
248 | to recalculate all the section offsets. This may mean we need to | |
249 | add even more stubs. */ | |
250 | gld${EMULATION_NAME}_map_segments (TRUE); | |
251 | need_laying_out = -1; | |
252 | } | |
253 | ||
254 | static void | |
255 | build_section_lists (lang_statement_union_type *statement) | |
256 | { | |
257 | if (statement->header.type == lang_input_section_enum) | |
258 | { | |
259 | asection *i = statement->input_section.section; | |
260 | ||
dbaa2011 | 261 | if (i->sec_info_type != SEC_INFO_TYPE_JUST_SYMS |
906e58ca NC |
262 | && (i->flags & SEC_EXCLUDE) == 0 |
263 | && i->output_section != NULL | |
264 | && i->output_section->owner == link_info.output_bfd) | |
265 | elf32_arm_next_input_section (& link_info, i); | |
266 | } | |
267 | } | |
268 | ||
2468f9c9 PB |
269 | static int |
270 | compare_output_sec_vma (const void *a, const void *b) | |
271 | { | |
272 | asection *asec = *(asection **) a, *bsec = *(asection **) b; | |
273 | asection *aout = asec->output_section, *bout = bsec->output_section; | |
274 | bfd_vma avma, bvma; | |
e2caaa1f | 275 | |
2468f9c9 PB |
276 | /* If there's no output section for some reason, compare equal. */ |
277 | if (!aout || !bout) | |
278 | return 0; | |
e2caaa1f | 279 | |
2468f9c9 PB |
280 | avma = aout->vma + asec->output_offset; |
281 | bvma = bout->vma + bsec->output_offset; | |
e2caaa1f | 282 | |
2468f9c9 PB |
283 | if (avma > bvma) |
284 | return 1; | |
285 | else if (avma < bvma) | |
286 | return -1; | |
e2caaa1f | 287 | |
2468f9c9 PB |
288 | return 0; |
289 | } | |
290 | ||
906e58ca | 291 | static void |
eaeb0a9d | 292 | gld${EMULATION_NAME}_after_allocation (void) |
6f798e5c | 293 | { |
75938853 AM |
294 | int ret; |
295 | ||
491d01d3 YU |
296 | /* Build a sorted list of input text sections, then use that to process |
297 | the unwind table index. */ | |
298 | unsigned int list_size = 10; | |
299 | asection **sec_list = (asection **) | |
300 | xmalloc (list_size * sizeof (asection *)); | |
301 | unsigned int sec_count = 0; | |
302 | ||
303 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
2468f9c9 | 304 | { |
491d01d3 YU |
305 | bfd *abfd = is->the_bfd; |
306 | asection *sec; | |
e2caaa1f | 307 | |
491d01d3 YU |
308 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) |
309 | continue; | |
e2caaa1f | 310 | |
491d01d3 YU |
311 | for (sec = abfd->sections; sec != NULL; sec = sec->next) |
312 | { | |
313 | asection *out_sec = sec->output_section; | |
314 | ||
315 | if (out_sec | |
316 | && elf_section_data (sec) | |
317 | && elf_section_type (sec) == SHT_PROGBITS | |
318 | && (elf_section_flags (sec) & SHF_EXECINSTR) != 0 | |
319 | && (sec->flags & SEC_EXCLUDE) == 0 | |
320 | && sec->sec_info_type != SEC_INFO_TYPE_JUST_SYMS | |
321 | && out_sec != bfd_abs_section_ptr) | |
2468f9c9 | 322 | { |
491d01d3 | 323 | if (sec_count == list_size) |
2468f9c9 | 324 | { |
491d01d3 YU |
325 | list_size *= 2; |
326 | sec_list = (asection **) | |
327 | xrealloc (sec_list, list_size * sizeof (asection *)); | |
2468f9c9 | 328 | } |
491d01d3 YU |
329 | |
330 | sec_list[sec_count++] = sec; | |
2468f9c9 PB |
331 | } |
332 | } | |
491d01d3 | 333 | } |
e2caaa1f | 334 | |
491d01d3 | 335 | qsort (sec_list, sec_count, sizeof (asection *), &compare_output_sec_vma); |
e2caaa1f | 336 | |
491d01d3 YU |
337 | if (elf32_arm_fix_exidx_coverage (sec_list, sec_count, &link_info, |
338 | merge_exidx_entries)) | |
339 | need_laying_out = 1; | |
e2caaa1f | 340 | |
491d01d3 | 341 | free (sec_list); |
6f798e5c | 342 | |
906e58ca NC |
343 | /* bfd_elf32_discard_info just plays with debugging sections, |
344 | ie. doesn't affect any code, so we can delay resizing the | |
345 | sections. It's likely we'll resize everything in the process of | |
346 | adding stubs. */ | |
75938853 AM |
347 | ret = bfd_elf_discard_info (link_info.output_bfd, & link_info); |
348 | if (ret < 0) | |
349 | { | |
350 | einfo ("%X%P: .eh_frame/.stab edit: %E\n"); | |
351 | return; | |
352 | } | |
353 | else if (ret > 0) | |
906e58ca NC |
354 | need_laying_out = 1; |
355 | ||
356 | /* If generating a relocatable output file, then we don't | |
357 | have to examine the relocs. */ | |
0e1862bb | 358 | if (stub_file != NULL && !bfd_link_relocatable (&link_info)) |
906e58ca | 359 | { |
75938853 | 360 | ret = elf32_arm_setup_section_lists (link_info.output_bfd, &link_info); |
906e58ca NC |
361 | if (ret != 0) |
362 | { | |
363 | if (ret < 0) | |
364 | { | |
1a51c1a4 | 365 | einfo ("%X%P: could not compute sections lists for stub generation: %E\n"); |
906e58ca NC |
366 | return; |
367 | } | |
368 | ||
369 | lang_for_each_statement (build_section_lists); | |
370 | ||
371 | /* Call into the BFD backend to do the real work. */ | |
372 | if (! elf32_arm_size_stubs (link_info.output_bfd, | |
373 | stub_file->the_bfd, | |
374 | & link_info, | |
375 | group_size, | |
376 | & elf32_arm_add_stub_section, | |
377 | & gldarm_layout_sections_again)) | |
378 | { | |
1a51c1a4 | 379 | einfo ("%X%P: cannot size stub section: %E\n"); |
906e58ca NC |
380 | return; |
381 | } | |
382 | } | |
383 | } | |
384 | ||
385 | if (need_laying_out != -1) | |
386 | gld${EMULATION_NAME}_map_segments (need_laying_out); | |
eaeb0a9d AM |
387 | } |
388 | ||
389 | static void | |
390 | gld${EMULATION_NAME}_finish (void) | |
391 | { | |
392 | struct bfd_link_hash_entry * h; | |
393 | ||
394 | { | |
395 | LANG_FOR_EACH_INPUT_STATEMENT (is) | |
396 | { | |
397 | /* Figure out where VFP11 erratum veneers (and the labels returning | |
398 | from same) have been placed. */ | |
399 | bfd_elf32_arm_vfp11_fix_veneer_locations (is->the_bfd, &link_info); | |
a504d23a LA |
400 | |
401 | /* Figure out where STM32L4XX erratum veneers (and the labels returning | |
402 | from them) have been placed. */ | |
403 | bfd_elf32_arm_stm32l4xx_fix_veneer_locations (is->the_bfd, &link_info); | |
eaeb0a9d AM |
404 | } |
405 | } | |
906e58ca | 406 | |
0e1862bb | 407 | if (!bfd_link_relocatable (&link_info)) |
906e58ca NC |
408 | { |
409 | /* Now build the linker stubs. */ | |
410 | if (stub_file->the_bfd->sections != NULL) | |
411 | { | |
412 | if (! elf32_arm_build_stubs (& link_info)) | |
413 | einfo ("%X%P: can not build stubs: %E\n"); | |
414 | } | |
415 | } | |
416 | ||
417 | finish_default (); | |
c56feb2b | 418 | |
1d022697 PB |
419 | if (thumb_entry_symbol) |
420 | { | |
421 | h = bfd_link_hash_lookup (link_info.hash, thumb_entry_symbol, | |
422 | FALSE, FALSE, TRUE); | |
423 | } | |
424 | else | |
425 | { | |
426 | struct elf_link_hash_entry * eh; | |
427 | ||
428 | if (!entry_symbol.name) | |
429 | return; | |
430 | ||
431 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol.name, | |
432 | FALSE, FALSE, TRUE); | |
433 | eh = (struct elf_link_hash_entry *)h; | |
35fc36a8 | 434 | if (!h || eh->target_internal != ST_BRANCH_TO_THUMB) |
1d022697 PB |
435 | return; |
436 | } | |
0c7a8e5a | 437 | |
6f798e5c NC |
438 | |
439 | if (h != (struct bfd_link_hash_entry *) NULL | |
440 | && (h->type == bfd_link_hash_defined | |
441 | || h->type == bfd_link_hash_defweak) | |
442 | && h->u.def.section->output_section != NULL) | |
443 | { | |
444 | static char buffer[32]; | |
88f7bcd5 | 445 | bfd_vma val; |
0c7a8e5a | 446 | |
88f7bcd5 NC |
447 | /* Special procesing is required for a Thumb entry symbol. The |
448 | bottom bit of its address must be set. */ | |
449 | val = (h->u.def.value | |
f13a99db | 450 | + bfd_get_section_vma (link_info.output_bfd, |
88f7bcd5 NC |
451 | h->u.def.section->output_section) |
452 | + h->u.def.section->output_offset); | |
0c7a8e5a | 453 | |
88f7bcd5 | 454 | val |= 1; |
6f798e5c | 455 | |
88f7bcd5 | 456 | /* Now convert this value into a string and store it in entry_symbol |
0c7a8e5a | 457 | where the lang_finish() function will pick it up. */ |
88f7bcd5 NC |
458 | buffer[0] = '0'; |
459 | buffer[1] = 'x'; | |
0c7a8e5a | 460 | |
88f7bcd5 | 461 | sprintf_vma (buffer + 2, val); |
6f798e5c | 462 | |
1d022697 PB |
463 | if (thumb_entry_symbol != NULL && entry_symbol.name != NULL |
464 | && entry_from_cmdline) | |
88f7bcd5 NC |
465 | einfo (_("%P: warning: '--thumb-entry %s' is overriding '-e %s'\n"), |
466 | thumb_entry_symbol, entry_symbol.name); | |
467 | entry_symbol.name = buffer; | |
6f798e5c | 468 | } |
88f7bcd5 | 469 | else |
6241fe3d | 470 | einfo (_("%P: warning: cannot find thumb start symbol %s\n"), |
88f7bcd5 | 471 | thumb_entry_symbol); |
6f798e5c NC |
472 | } |
473 | ||
bf21ed78 | 474 | /* This is a convenient point to tell BFD about target specific flags. |
3674e28a PB |
475 | After the output has been created, but before inputs are read. */ |
476 | static void | |
477 | arm_elf_create_output_section_statements (void) | |
478 | { | |
b8976b05 NC |
479 | if (strstr (bfd_get_target (link_info.output_bfd), "arm") == NULL) |
480 | { | |
481 | /* The arm backend needs special fields in the output hash structure. | |
482 | These will only be created if the output format is an arm format, | |
483 | hence we do not support linking and changing output formats at the | |
484 | same time. Use a link followed by objcopy to change output formats. */ | |
485 | einfo ("%F%X%P: error: Cannot change output format whilst linking ARM binaries.\n"); | |
486 | return; | |
487 | } | |
488 | ||
f13a99db AM |
489 | bfd_elf32_arm_set_target_relocs (link_info.output_bfd, &link_info, |
490 | target1_is_rel, | |
bf21ed78 | 491 | target2_type, fix_v4bx, use_blx, |
a504d23a LA |
492 | vfp11_denorm_fix, stm32l4xx_fix, |
493 | no_enum_size_warning, | |
a9dc9481 | 494 | no_wchar_size_warning, |
e2caaa1f | 495 | pic_veneer, fix_cortex_a8, |
2de70689 | 496 | fix_arm1176); |
906e58ca NC |
497 | |
498 | stub_file = lang_add_input_file ("linker stubs", | |
499 | lang_input_file_is_fake_enum, | |
500 | NULL); | |
501 | stub_file->the_bfd = bfd_create ("linker stubs", link_info.output_bfd); | |
502 | if (stub_file->the_bfd == NULL | |
503 | || ! bfd_set_arch_mach (stub_file->the_bfd, | |
504 | bfd_get_arch (link_info.output_bfd), | |
505 | bfd_get_mach (link_info.output_bfd))) | |
506 | { | |
507 | einfo ("%X%P: can not create BFD %E\n"); | |
508 | return; | |
509 | } | |
e2caaa1f | 510 | |
906e58ca NC |
511 | stub_file->the_bfd->flags |= BFD_LINKER_CREATED; |
512 | ldlang_add_file (stub_file); | |
3e6b1042 DJ |
513 | |
514 | /* Also use the stub file for stubs placed in a single output section. */ | |
515 | bfd_elf32_arm_add_glue_sections_to_bfd (stub_file->the_bfd, &link_info); | |
516 | bfd_elf32_arm_get_bfd_for_interworking (stub_file->the_bfd, &link_info); | |
906e58ca NC |
517 | } |
518 | ||
519 | /* Avoid processing the fake stub_file in vercheck, stat_needed and | |
520 | check_needed routines. */ | |
521 | ||
522 | static void (*real_func) (lang_input_statement_type *); | |
523 | ||
524 | static void arm_for_each_input_file_wrapper (lang_input_statement_type *l) | |
525 | { | |
526 | if (l != stub_file) | |
527 | (*real_func) (l); | |
3674e28a PB |
528 | } |
529 | ||
906e58ca NC |
530 | static void |
531 | arm_lang_for_each_input_file (void (*func) (lang_input_statement_type *)) | |
532 | { | |
533 | real_func = func; | |
534 | lang_for_each_input_file (&arm_for_each_input_file_wrapper); | |
535 | } | |
536 | ||
537 | #define lang_for_each_input_file arm_lang_for_each_input_file | |
538 | ||
252b5132 RH |
539 | EOF |
540 | ||
41392f03 AM |
541 | # Define some shell vars to insert bits of code into the standard elf |
542 | # parse_args and list_options functions. | |
543 | # | |
544 | PARSE_AND_LIST_PROLOGUE=' | |
545 | #define OPTION_THUMB_ENTRY 301 | |
e489d0ae | 546 | #define OPTION_BE8 302 |
9c504268 PB |
547 | #define OPTION_TARGET1_REL 303 |
548 | #define OPTION_TARGET1_ABS 304 | |
3674e28a | 549 | #define OPTION_TARGET2 305 |
33bfe774 JB |
550 | #define OPTION_FIX_V4BX 306 |
551 | #define OPTION_USE_BLX 307 | |
c6dd86c6 | 552 | #define OPTION_VFP11_DENORM_FIX 308 |
bf21ed78 | 553 | #define OPTION_NO_ENUM_SIZE_WARNING 309 |
27e55c4d | 554 | #define OPTION_PIC_VENEER 310 |
845b51d6 | 555 | #define OPTION_FIX_V4BX_INTERWORKING 311 |
8c45e5ec | 556 | #define OPTION_STUBGROUP_SIZE 312 |
a9dc9481 | 557 | #define OPTION_NO_WCHAR_SIZE_WARNING 313 |
48229727 JB |
558 | #define OPTION_FIX_CORTEX_A8 314 |
559 | #define OPTION_NO_FIX_CORTEX_A8 315 | |
8c45e5ec | 560 | #define OPTION_NO_MERGE_EXIDX_ENTRIES 316 |
2de70689 MGD |
561 | #define OPTION_FIX_ARM1176 317 |
562 | #define OPTION_NO_FIX_ARM1176 318 | |
8c45e5ec | 563 | #define OPTION_LONG_PLT 319 |
a504d23a | 564 | #define OPTION_STM32L4XX_FIX 320 |
41392f03 | 565 | ' |
252b5132 | 566 | |
ef5bdbd1 | 567 | PARSE_AND_LIST_SHORTOPTS=p |
252b5132 | 568 | |
41392f03 AM |
569 | PARSE_AND_LIST_LONGOPTS=' |
570 | { "no-pipeline-knowledge", no_argument, NULL, '\'p\''}, | |
571 | { "thumb-entry", required_argument, NULL, OPTION_THUMB_ENTRY}, | |
e489d0ae | 572 | { "be8", no_argument, NULL, OPTION_BE8}, |
9c504268 PB |
573 | { "target1-rel", no_argument, NULL, OPTION_TARGET1_REL}, |
574 | { "target1-abs", no_argument, NULL, OPTION_TARGET1_ABS}, | |
3674e28a | 575 | { "target2", required_argument, NULL, OPTION_TARGET2}, |
319850b4 | 576 | { "fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX}, |
845b51d6 | 577 | { "fix-v4bx-interworking", no_argument, NULL, OPTION_FIX_V4BX_INTERWORKING}, |
33bfe774 | 578 | { "use-blx", no_argument, NULL, OPTION_USE_BLX}, |
c6dd86c6 | 579 | { "vfp11-denorm-fix", required_argument, NULL, OPTION_VFP11_DENORM_FIX}, |
a504d23a | 580 | { "fix-stm32l4xx-629360", optional_argument, NULL, OPTION_STM32L4XX_FIX}, |
bf21ed78 | 581 | { "no-enum-size-warning", no_argument, NULL, OPTION_NO_ENUM_SIZE_WARNING}, |
27e55c4d | 582 | { "pic-veneer", no_argument, NULL, OPTION_PIC_VENEER}, |
906e58ca | 583 | { "stub-group-size", required_argument, NULL, OPTION_STUBGROUP_SIZE }, |
a9dc9481 | 584 | { "no-wchar-size-warning", no_argument, NULL, OPTION_NO_WCHAR_SIZE_WARNING}, |
48229727 JB |
585 | { "fix-cortex-a8", no_argument, NULL, OPTION_FIX_CORTEX_A8 }, |
586 | { "no-fix-cortex-a8", no_argument, NULL, OPTION_NO_FIX_CORTEX_A8 }, | |
85fdf906 | 587 | { "no-merge-exidx-entries", no_argument, NULL, OPTION_NO_MERGE_EXIDX_ENTRIES }, |
2de70689 MGD |
588 | { "fix-arm1176", no_argument, NULL, OPTION_FIX_ARM1176 }, |
589 | { "no-fix-arm1176", no_argument, NULL, OPTION_NO_FIX_ARM1176 }, | |
1db37fe6 | 590 | { "long-plt", no_argument, NULL, OPTION_LONG_PLT }, |
41392f03 | 591 | ' |
252b5132 | 592 | |
41392f03 | 593 | PARSE_AND_LIST_OPTIONS=' |
442996ee | 594 | fprintf (file, _(" --thumb-entry=<sym> Set the entry point to be Thumb symbol <sym>\n")); |
4a977a31 | 595 | fprintf (file, _(" --be8 Output BE8 format image\n")); |
f8266dc4 NC |
596 | fprintf (file, _(" --target1-rel Interpret R_ARM_TARGET1 as R_ARM_REL32\n")); |
597 | fprintf (file, _(" --target1-abs Interpret R_ARM_TARGET1 as R_ARM_ABS32\n")); | |
442996ee AM |
598 | fprintf (file, _(" --target2=<type> Specify definition of R_ARM_TARGET2\n")); |
599 | fprintf (file, _(" --fix-v4bx Rewrite BX rn as MOV pc, rn for ARMv4\n")); | |
845b51d6 | 600 | fprintf (file, _(" --fix-v4bx-interworking Rewrite BX rn branch to ARMv4 interworking veneer\n")); |
442996ee AM |
601 | fprintf (file, _(" --use-blx Enable use of BLX instructions\n")); |
602 | fprintf (file, _(" --vfp11-denorm-fix Specify how to fix VFP11 denorm erratum\n")); | |
a504d23a | 603 | fprintf (file, _(" --fix-stm32l4xx-629360 Specify how to fix STM32L4XX 629360 erratum\n")); |
893dcb0e | 604 | fprintf (file, _(" --no-enum-size-warning Don'\''t warn about objects with incompatible\n" |
442996ee | 605 | " enum sizes\n")); |
a272e28c | 606 | fprintf (file, _(" --no-wchar-size-warning Don'\''t warn about objects with incompatible\n" |
a9dc9481 | 607 | " wchar_t sizes\n")); |
442996ee | 608 | fprintf (file, _(" --pic-veneer Always generate PIC interworking veneers\n")); |
1db37fe6 YG |
609 | fprintf (file, _(" --long-plt Generate long .plt entries\n" |
610 | " to handle large .plt/.got displacements\n")); | |
906e58ca | 611 | fprintf (file, _("\ |
a272e28c NC |
612 | --stub-group-size=N Maximum size of a group of input sections that\n\ |
613 | can be handled by one stub section. A negative\n\ | |
614 | value locates all stubs after their branches\n\ | |
615 | (with a group size of -N), while a positive\n\ | |
616 | value allows two groups of input sections, one\n\ | |
617 | before, and one after each stub section.\n\ | |
618 | Values of +/-1 indicate the linker should\n\ | |
619 | choose suitable defaults.\n")); | |
48229727 | 620 | fprintf (file, _(" --[no-]fix-cortex-a8 Disable/enable Cortex-A8 Thumb-2 branch erratum fix\n")); |
85fdf906 | 621 | fprintf (file, _(" --no-merge-exidx-entries Disable merging exidx entries\n")); |
2de70689 | 622 | fprintf (file, _(" --[no-]fix-arm1176 Disable/enable ARM1176 BLX immediate erratum fix\n")); |
41392f03 | 623 | ' |
252b5132 | 624 | |
41392f03 AM |
625 | PARSE_AND_LIST_ARGS_CASES=' |
626 | case '\'p\'': | |
dea514f5 | 627 | /* Only here for backwards compatibility. */ |
41392f03 | 628 | break; |
252b5132 | 629 | |
41392f03 AM |
630 | case OPTION_THUMB_ENTRY: |
631 | thumb_entry_symbol = optarg; | |
632 | break; | |
e489d0ae PB |
633 | |
634 | case OPTION_BE8: | |
635 | byteswap_code = 1; | |
636 | break; | |
9c504268 PB |
637 | |
638 | case OPTION_TARGET1_REL: | |
639 | target1_is_rel = 1; | |
640 | break; | |
641 | ||
642 | case OPTION_TARGET1_ABS: | |
643 | target1_is_rel = 0; | |
644 | break; | |
3674e28a PB |
645 | |
646 | case OPTION_TARGET2: | |
647 | target2_type = optarg; | |
648 | break; | |
319850b4 JB |
649 | |
650 | case OPTION_FIX_V4BX: | |
651 | fix_v4bx = 1; | |
652 | break; | |
33bfe774 | 653 | |
845b51d6 PB |
654 | case OPTION_FIX_V4BX_INTERWORKING: |
655 | fix_v4bx = 2; | |
656 | break; | |
657 | ||
33bfe774 JB |
658 | case OPTION_USE_BLX: |
659 | use_blx = 1; | |
660 | break; | |
92b93329 | 661 | |
c6dd86c6 JB |
662 | case OPTION_VFP11_DENORM_FIX: |
663 | if (strcmp (optarg, "none") == 0) | |
664 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE; | |
665 | else if (strcmp (optarg, "scalar") == 0) | |
666 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR; | |
667 | else if (strcmp (optarg, "vector") == 0) | |
668 | vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR; | |
669 | else | |
670 | einfo (_("Unrecognized VFP11 fix type '\''%s'\''.\n"), optarg); | |
671 | break; | |
bf21ed78 | 672 | |
a504d23a LA |
673 | case OPTION_STM32L4XX_FIX: |
674 | if (!optarg) | |
675 | stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT; | |
676 | else if (strcmp (optarg, "none") == 0) | |
677 | stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_NONE; | |
678 | else if (strcmp (optarg, "default") == 0) | |
679 | stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_DEFAULT; | |
680 | else if (strcmp (optarg, "all") == 0) | |
681 | stm32l4xx_fix = BFD_ARM_STM32L4XX_FIX_ALL; | |
682 | else | |
683 | einfo (_("Unrecognized STM32L4XX fix type '\''%s'\''.\n"), optarg); | |
684 | break; | |
685 | ||
bf21ed78 MS |
686 | case OPTION_NO_ENUM_SIZE_WARNING: |
687 | no_enum_size_warning = 1; | |
688 | break; | |
27e55c4d | 689 | |
a9dc9481 JM |
690 | case OPTION_NO_WCHAR_SIZE_WARNING: |
691 | no_wchar_size_warning = 1; | |
692 | break; | |
693 | ||
27e55c4d PB |
694 | case OPTION_PIC_VENEER: |
695 | pic_veneer = 1; | |
696 | break; | |
906e58ca NC |
697 | |
698 | case OPTION_STUBGROUP_SIZE: | |
699 | { | |
700 | const char *end; | |
701 | ||
702 | group_size = bfd_scan_vma (optarg, &end, 0); | |
703 | if (*end) | |
704 | einfo (_("%P%F: invalid number `%s'\''\n"), optarg); | |
705 | } | |
706 | break; | |
48229727 JB |
707 | |
708 | case OPTION_FIX_CORTEX_A8: | |
709 | fix_cortex_a8 = 1; | |
710 | break; | |
711 | ||
712 | case OPTION_NO_FIX_CORTEX_A8: | |
713 | fix_cortex_a8 = 0; | |
714 | break; | |
85fdf906 AH |
715 | |
716 | case OPTION_NO_MERGE_EXIDX_ENTRIES: | |
717 | merge_exidx_entries = 0; | |
2de70689 | 718 | break; |
85fdf906 | 719 | |
2de70689 MGD |
720 | case OPTION_FIX_ARM1176: |
721 | fix_arm1176 = 1; | |
722 | break; | |
723 | ||
724 | case OPTION_NO_FIX_ARM1176: | |
725 | fix_arm1176 = 0; | |
726 | break; | |
1db37fe6 YG |
727 | |
728 | case OPTION_LONG_PLT: | |
729 | bfd_elf32_arm_use_long_plt (); | |
730 | break; | |
41392f03 | 731 | ' |
252b5132 | 732 | |
3e6b1042 | 733 | # We have our own before_allocation etc. functions, but they call |
41392f03 | 734 | # the standard routines, so give them a different name. |
41392f03 | 735 | LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation |
eaeb0a9d | 736 | LDEMUL_AFTER_ALLOCATION=gld${EMULATION_NAME}_after_allocation |
3674e28a | 737 | LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=arm_elf_create_output_section_statements |
252b5132 | 738 | |
41392f03 AM |
739 | # Replace the elf before_parse function with our own. |
740 | LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse | |
3940d2c3 | 741 | LDEMUL_SET_SYMBOLS=gld"${EMULATION_NAME}"_set_symbols |
252b5132 | 742 | |
41392f03 | 743 | # Call the extra arm-elf function |
906e58ca | 744 | LDEMUL_FINISH=gld${EMULATION_NAME}_finish |