Commit | Line | Data |
---|---|---|
e20873a7 | 1 | /* Linker command language support. |
307585f1 | 2 | Copyright (C) 1991, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. |
075d7359 | 3 | |
2fa0b342 DHW |
4 | This file is part of GLD, the Gnu Linker. |
5 | ||
6 | GLD 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 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GLD 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 GLD; see the file COPYING. If not, write to | |
943fbd5b | 18 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
2fa0b342 | 19 | |
2fa0b342 | 20 | #include "bfd.h" |
075d7359 | 21 | #include "sysdep.h" |
4c2123b6 | 22 | #include "libiberty.h" |
c477527c | 23 | #include "bfdlink.h" |
2fa0b342 DHW |
24 | |
25 | #include "ld.h" | |
fcf276c4 | 26 | #include "ldmain.h" |
7bc4a0d7 | 27 | #include "ldgram.h" |
2fa0b342 | 28 | #include "ldexp.h" |
fcf276c4 | 29 | #include "ldlang.h" |
8c514453 | 30 | #include "ldemul.h" |
2fa0b342 | 31 | #include "ldlex.h" |
3f8d46e7 | 32 | #include "ldmisc.h" |
c611e285 | 33 | #include "ldctor.h" |
fcf276c4 | 34 | #include "ldfile.h" |
b98bd3db | 35 | |
2fa0b342 | 36 | /* FORWARDS */ |
5af8e9d6 KR |
37 | static lang_statement_union_type *new_statement PARAMS ((enum statement_enum, |
38 | size_t, | |
39 | lang_statement_list_type*)); | |
40 | ||
2fa0b342 | 41 | |
d4c02e29 | 42 | /* LOCALS */ |
bfbdc80f | 43 | static struct obstack stat_obstack; |
075d7359 | 44 | |
0b2f8d2e | 45 | #define obstack_chunk_alloc xmalloc |
bfbdc80f | 46 | #define obstack_chunk_free free |
075d7359 | 47 | static CONST char *startup_file; |
d4c02e29 SC |
48 | static lang_statement_list_type input_file_chain; |
49 | static boolean placed_commons = false; | |
50 | static lang_output_section_statement_type *default_common_section; | |
51 | static boolean map_option_f; | |
52 | static bfd_vma print_dot; | |
53 | static lang_input_statement_type *first_file; | |
54 | static lang_statement_list_type lang_output_section_statement; | |
55 | static CONST char *current_target; | |
56 | static CONST char *output_target; | |
d4c02e29 | 57 | static lang_statement_list_type statement_list; |
061e65f8 | 58 | static struct lang_phdr *lang_phdr_list; |
ffc50032 | 59 | |
9f629407 ILT |
60 | static void lang_for_each_statement_worker |
61 | PARAMS ((void (*func) (lang_statement_union_type *), | |
62 | lang_statement_union_type *s)); | |
63 | static lang_input_statement_type *new_afile | |
64 | PARAMS ((const char *name, lang_input_file_enum_type file_type, | |
193c5f93 | 65 | const char *target, boolean add_to_list)); |
9f629407 | 66 | static void init_os PARAMS ((lang_output_section_statement_type *s)); |
23595ba5 | 67 | static void section_already_linked PARAMS ((bfd *, asection *, PTR)); |
9f629407 ILT |
68 | static void wild_section PARAMS ((lang_wild_statement_type *ptr, |
69 | const char *section, | |
70 | lang_input_statement_type *file, | |
71 | lang_output_section_statement_type *output)); | |
193c5f93 | 72 | static lang_input_statement_type *lookup_name PARAMS ((const char *name)); |
6a02a973 ILT |
73 | static void load_symbols PARAMS ((lang_input_statement_type *entry, |
74 | lang_statement_list_type *)); | |
9f629407 ILT |
75 | static void wild PARAMS ((lang_wild_statement_type *s, |
76 | const char *section, const char *file, | |
77 | const char *target, | |
78 | lang_output_section_statement_type *output)); | |
79 | static bfd *open_output PARAMS ((const char *name)); | |
80 | static void ldlang_open_output PARAMS ((lang_statement_union_type *statement)); | |
309c8153 ILT |
81 | static void open_input_bfds |
82 | PARAMS ((lang_statement_union_type *statement, boolean)); | |
9f629407 ILT |
83 | static void lang_reasonable_defaults PARAMS ((void)); |
84 | static void lang_place_undefineds PARAMS ((void)); | |
9f629407 ILT |
85 | static void map_input_to_output_sections |
86 | PARAMS ((lang_statement_union_type *s, | |
87 | const char *target, | |
88 | lang_output_section_statement_type *output_section_statement)); | |
89 | static void print_output_section_statement | |
90 | PARAMS ((lang_output_section_statement_type *output_section_statement)); | |
91 | static void print_assignment | |
92 | PARAMS ((lang_assignment_statement_type *assignment, | |
93 | lang_output_section_statement_type *output_section)); | |
94 | static void print_input_statement PARAMS ((lang_input_statement_type *statm)); | |
9f629407 ILT |
95 | static void print_input_section PARAMS ((lang_input_section_type *in)); |
96 | static void print_fill_statement PARAMS ((lang_fill_statement_type *fill)); | |
97 | static void print_data_statement PARAMS ((lang_data_statement_type *data)); | |
0cacbcbe | 98 | static void print_address_statement PARAMS ((lang_address_statement_type *)); |
4fdbafb2 | 99 | static void print_reloc_statement PARAMS ((lang_reloc_statement_type *reloc)); |
9f629407 ILT |
100 | static void print_padding_statement PARAMS ((lang_padding_statement_type *s)); |
101 | static void print_wild_statement | |
102 | PARAMS ((lang_wild_statement_type *w, | |
103 | lang_output_section_statement_type *os)); | |
309c8153 ILT |
104 | static void print_group |
105 | PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *)); | |
9f629407 ILT |
106 | static void print_statement PARAMS ((lang_statement_union_type *s, |
107 | lang_output_section_statement_type *os)); | |
708f7fbc ILT |
108 | static void print_statement_list PARAMS ((lang_statement_union_type *s, |
109 | lang_output_section_statement_type *os)); | |
9f629407 ILT |
110 | static void print_statements PARAMS ((void)); |
111 | static bfd_vma insert_pad PARAMS ((lang_statement_union_type **this_ptr, | |
112 | fill_type fill, unsigned int power, | |
113 | asection *output_section_statement, | |
114 | bfd_vma dot)); | |
115 | static bfd_vma size_input_section | |
116 | PARAMS ((lang_statement_union_type **this_ptr, | |
117 | lang_output_section_statement_type *output_section_statement, | |
c477527c | 118 | fill_type fill, bfd_vma dot, boolean relax)); |
9f629407 ILT |
119 | static void lang_finish PARAMS ((void)); |
120 | static void lang_check PARAMS ((void)); | |
121 | static void lang_common PARAMS ((void)); | |
c477527c | 122 | static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR)); |
9f629407 ILT |
123 | static void lang_place_orphans PARAMS ((void)); |
124 | static int topower PARAMS ((int)); | |
1d169acc | 125 | static void lang_set_startof PARAMS ((void)); |
9f629407 | 126 | static void reset_memory_regions PARAMS ((void)); |
061e65f8 | 127 | static void lang_record_phdrs PARAMS ((void)); |
9f629407 | 128 | |
2fa0b342 | 129 | /* EXPORTS */ |
ffc50032 | 130 | lang_output_section_statement_type *abs_output_section; |
d4c02e29 | 131 | lang_statement_list_type *stat_ptr = &statement_list; |
a4d2a48e | 132 | lang_statement_list_type file_chain = { 0 }; |
061e65f8 | 133 | const char *entry_symbol = NULL; |
f054ce20 | 134 | boolean entry_from_cmdline; |
d4c02e29 | 135 | boolean lang_has_input_file = false; |
d4c02e29 SC |
136 | boolean had_output_filename = false; |
137 | boolean lang_float_flag = false; | |
97fbbaca | 138 | boolean delete_output_file_on_failure = false; |
075d7359 | 139 | |
9fce28ed SC |
140 | etree_type *base; /* Relocation base - or null */ |
141 | ||
142 | ||
b897ed67 | 143 | #if defined(__STDC__) || defined(ALMOST_STDC) |
2fa0b342 DHW |
144 | #define cat(a,b) a##b |
145 | #else | |
146 | #define cat(a,b) a/**/b | |
147 | #endif | |
148 | ||
149 | #define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y) | |
150 | ||
151 | #define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma) | |
152 | ||
153 | #define outside_symbol_address(q) ((q)->value + outside_section_address(q->section)) | |
154 | ||
0cacbcbe ILT |
155 | #define SECTION_NAME_MAP_LENGTH (16) |
156 | ||
bfbdc80f | 157 | PTR |
8ddef552 DM |
158 | stat_alloc (size) |
159 | size_t size; | |
bfbdc80f | 160 | { |
075d7359 | 161 | return obstack_alloc (&stat_obstack, size); |
bfbdc80f | 162 | } |
9f629407 | 163 | |
1418c83b SC |
164 | /*---------------------------------------------------------------------- |
165 | lang_for_each_statement walks the parse tree and calls the provided | |
166 | function for each node | |
167 | */ | |
168 | ||
075d7359 | 169 | static void |
8ddef552 | 170 | lang_for_each_statement_worker (func, s) |
c477527c | 171 | void (*func) PARAMS ((lang_statement_union_type *)); |
8ddef552 | 172 | lang_statement_union_type *s; |
1418c83b | 173 | { |
075d7359 SC |
174 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
175 | { | |
176 | func (s); | |
1418c83b | 177 | |
075d7359 SC |
178 | switch (s->header.type) |
179 | { | |
81016051 | 180 | case lang_constructors_statement_enum: |
075d7359 | 181 | lang_for_each_statement_worker (func, constructor_list.head); |
81016051 | 182 | break; |
1418c83b SC |
183 | case lang_output_section_statement_enum: |
184 | lang_for_each_statement_worker | |
075d7359 | 185 | (func, |
1418c83b SC |
186 | s->output_section_statement.children.head); |
187 | break; | |
188 | case lang_wild_statement_enum: | |
189 | lang_for_each_statement_worker | |
075d7359 | 190 | (func, |
1418c83b SC |
191 | s->wild_statement.children.head); |
192 | break; | |
309c8153 ILT |
193 | case lang_group_statement_enum: |
194 | lang_for_each_statement_worker (func, | |
195 | s->group_statement.children.head); | |
196 | break; | |
1418c83b | 197 | case lang_data_statement_enum: |
4fdbafb2 | 198 | case lang_reloc_statement_enum: |
1418c83b SC |
199 | case lang_object_symbols_statement_enum: |
200 | case lang_output_statement_enum: | |
201 | case lang_target_statement_enum: | |
202 | case lang_input_section_enum: | |
203 | case lang_input_statement_enum: | |
1418c83b SC |
204 | case lang_assignment_statement_enum: |
205 | case lang_padding_statement_enum: | |
206 | case lang_address_statement_enum: | |
0cacbcbe | 207 | case lang_fill_statement_enum: |
1418c83b SC |
208 | break; |
209 | default: | |
075d7359 | 210 | FAIL (); |
1418c83b SC |
211 | break; |
212 | } | |
075d7359 | 213 | } |
1418c83b SC |
214 | } |
215 | ||
216 | void | |
8ddef552 | 217 | lang_for_each_statement (func) |
c477527c | 218 | void (*func) PARAMS ((lang_statement_union_type *)); |
1418c83b | 219 | { |
075d7359 SC |
220 | lang_for_each_statement_worker (func, |
221 | statement_list.head); | |
1418c83b | 222 | } |
075d7359 | 223 | |
1418c83b | 224 | /*----------------------------------------------------------------------*/ |
075d7359 | 225 | void |
8ddef552 DM |
226 | lang_list_init (list) |
227 | lang_statement_list_type *list; | |
2fa0b342 | 228 | { |
075d7359 SC |
229 | list->head = (lang_statement_union_type *) NULL; |
230 | list->tail = &list->head; | |
2fa0b342 DHW |
231 | } |
232 | ||
1418c83b | 233 | /*---------------------------------------------------------------------- |
075d7359 | 234 | |
1418c83b SC |
235 | build a new statement node for the parse tree |
236 | ||
237 | */ | |
2fa0b342 DHW |
238 | |
239 | static | |
075d7359 | 240 | lang_statement_union_type * |
8ddef552 DM |
241 | new_statement (type, size, list) |
242 | enum statement_enum type; | |
5af8e9d6 | 243 | size_t size; |
8ddef552 | 244 | lang_statement_list_type * list; |
2fa0b342 DHW |
245 | { |
246 | lang_statement_union_type *new = (lang_statement_union_type *) | |
075d7359 SC |
247 | stat_alloc (size); |
248 | ||
2fa0b342 | 249 | new->header.type = type; |
075d7359 SC |
250 | new->header.next = (lang_statement_union_type *) NULL; |
251 | lang_statement_append (list, new, &new->header.next); | |
2fa0b342 DHW |
252 | return new; |
253 | } | |
254 | ||
1418c83b SC |
255 | /* |
256 | Build a new input file node for the language. There are several ways | |
257 | in which we treat an input file, eg, we only look at symbols, or | |
258 | prefix it with a -l etc. | |
259 | ||
260 | We can be supplied with requests for input files more than once; | |
261 | they may, for example be split over serveral lines like foo.o(.text) | |
262 | foo.o(.data) etc, so when asked for a file we check that we havn't | |
263 | got it already so we don't duplicate the bfd. | |
264 | ||
265 | */ | |
2fa0b342 | 266 | static lang_input_statement_type * |
193c5f93 | 267 | new_afile (name, file_type, target, add_to_list) |
9f629407 ILT |
268 | CONST char *name; |
269 | lang_input_file_enum_type file_type; | |
270 | CONST char *target; | |
193c5f93 | 271 | boolean add_to_list; |
2fa0b342 | 272 | { |
193c5f93 | 273 | lang_input_statement_type *p; |
dc4726c2 | 274 | |
193c5f93 ILT |
275 | if (add_to_list) |
276 | p = new_stat (lang_input_statement, stat_ptr); | |
277 | else | |
278 | { | |
279 | p = ((lang_input_statement_type *) | |
280 | stat_alloc (sizeof (lang_input_statement_type))); | |
281 | p->header.next = NULL; | |
282 | } | |
075d7359 | 283 | |
2fa0b342 DHW |
284 | lang_has_input_file = true; |
285 | p->target = target; | |
ee4af9e8 | 286 | p->complained = false; |
075d7359 SC |
287 | switch (file_type) |
288 | { | |
289 | case lang_input_file_is_symbols_only_enum: | |
290 | p->filename = name; | |
291 | p->is_archive = false; | |
292 | p->real = true; | |
293 | p->local_sym_name = name; | |
294 | p->just_syms_flag = true; | |
295 | p->search_dirs_flag = false; | |
296 | break; | |
297 | case lang_input_file_is_fake_enum: | |
298 | p->filename = name; | |
299 | p->is_archive = false; | |
300 | p->real = false; | |
301 | p->local_sym_name = name; | |
302 | p->just_syms_flag = false; | |
303 | p->search_dirs_flag = false; | |
304 | break; | |
305 | case lang_input_file_is_l_enum: | |
306 | p->is_archive = true; | |
307 | p->filename = name; | |
308 | p->real = true; | |
ef76742f | 309 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
075d7359 SC |
310 | p->just_syms_flag = false; |
311 | p->search_dirs_flag = true; | |
312 | break; | |
075d7359 | 313 | case lang_input_file_is_marker_enum: |
193c5f93 ILT |
314 | p->filename = name; |
315 | p->is_archive = false; | |
316 | p->real = false; | |
317 | p->local_sym_name = name; | |
318 | p->just_syms_flag = false; | |
319 | p->search_dirs_flag = true; | |
320 | break; | |
321 | case lang_input_file_is_search_file_enum: | |
075d7359 SC |
322 | p->filename = name; |
323 | p->is_archive = false; | |
324 | p->real = true; | |
325 | p->local_sym_name = name; | |
326 | p->just_syms_flag = false; | |
327 | p->search_dirs_flag = true; | |
328 | break; | |
329 | case lang_input_file_is_file_enum: | |
330 | p->filename = name; | |
331 | p->is_archive = false; | |
332 | p->real = true; | |
333 | p->local_sym_name = name; | |
334 | p->just_syms_flag = false; | |
335 | p->search_dirs_flag = false; | |
336 | break; | |
337 | default: | |
338 | FAIL (); | |
339 | } | |
193c5f93 | 340 | p->the_bfd = (bfd *) NULL; |
075d7359 | 341 | p->asymbols = (asymbol **) NULL; |
075d7359 SC |
342 | p->next_real_file = (lang_statement_union_type *) NULL; |
343 | p->next = (lang_statement_union_type *) NULL; | |
2fa0b342 | 344 | p->symbol_count = 0; |
075d7359 | 345 | p->common_output_section = (asection *) NULL; |
1d169acc | 346 | p->dynamic = config.dynamic_link; |
3c8deccc | 347 | p->whole_archive = whole_archive; |
5e6cd559 | 348 | p->loaded = false; |
075d7359 SC |
349 | lang_statement_append (&input_file_chain, |
350 | (lang_statement_union_type *) p, | |
351 | &p->next_real_file); | |
2fa0b342 DHW |
352 | return p; |
353 | } | |
354 | ||
355 | lang_input_statement_type * | |
8ddef552 DM |
356 | lang_add_input_file (name, file_type, target) |
357 | CONST char *name; | |
358 | lang_input_file_enum_type file_type; | |
359 | CONST char *target; | |
2fa0b342 | 360 | { |
1418c83b | 361 | lang_has_input_file = true; |
193c5f93 | 362 | return new_afile (name, file_type, target, true); |
2fa0b342 DHW |
363 | } |
364 | ||
1418c83b | 365 | /* Build enough state so that the parser can build its tree */ |
2fa0b342 | 366 | void |
8ddef552 | 367 | lang_init () |
2fa0b342 | 368 | { |
075d7359 | 369 | obstack_begin (&stat_obstack, 1000); |
2fa0b342 | 370 | |
075d7359 | 371 | stat_ptr = &statement_list; |
bfbdc80f | 372 | |
075d7359 | 373 | lang_list_init (stat_ptr); |
2fa0b342 | 374 | |
075d7359 SC |
375 | lang_list_init (&input_file_chain); |
376 | lang_list_init (&lang_output_section_statement); | |
377 | lang_list_init (&file_chain); | |
378 | first_file = lang_add_input_file ((char *) NULL, | |
379 | lang_input_file_is_marker_enum, | |
380 | (char *) NULL); | |
381 | abs_output_section = lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME); | |
9d1fe8a4 | 382 | |
686739e2 | 383 | abs_output_section->bfd_section = bfd_abs_section_ptr; |
9d1fe8a4 | 384 | |
2fa0b342 DHW |
385 | } |
386 | ||
1418c83b | 387 | /*---------------------------------------------------------------------- |
075d7359 SC |
388 | A region is an area of memory declared with the |
389 | MEMORY { name:org=exp, len=exp ... } | |
390 | syntax. | |
2fa0b342 | 391 | |
1418c83b | 392 | We maintain a list of all the regions here |
2fa0b342 | 393 | |
1418c83b SC |
394 | If no regions are specified in the script, then the default is used |
395 | which is created when looked up to be the entire data space | |
2fa0b342 DHW |
396 | */ |
397 | ||
398 | static lang_memory_region_type *lang_memory_region_list; | |
399 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
400 | ||
401 | lang_memory_region_type * | |
8ddef552 DM |
402 | lang_memory_region_lookup (name) |
403 | CONST char *CONST name; | |
2fa0b342 DHW |
404 | { |
405 | ||
075d7359 SC |
406 | lang_memory_region_type *p = lang_memory_region_list; |
407 | ||
1418c83b | 408 | for (p = lang_memory_region_list; |
075d7359 SC |
409 | p != (lang_memory_region_type *) NULL; |
410 | p = p->next) | |
411 | { | |
412 | if (strcmp (p->name, name) == 0) | |
413 | { | |
414 | return p; | |
415 | } | |
2fa0b342 | 416 | } |
36ea6198 ILT |
417 | |
418 | #if 0 | |
419 | /* This code used to always use the first region in the list as the | |
420 | default region. I changed it to instead use a region | |
421 | encompassing all of memory as the default region. This permits | |
422 | NOLOAD sections to work reasonably without requiring a region. | |
423 | People should specify what region they mean, if they really want | |
424 | a region. */ | |
075d7359 | 425 | if (strcmp (name, "*default*") == 0) |
2fa0b342 | 426 | { |
075d7359 SC |
427 | if (lang_memory_region_list != (lang_memory_region_type *) NULL) |
428 | { | |
429 | return lang_memory_region_list; | |
430 | } | |
2fa0b342 | 431 | } |
36ea6198 ILT |
432 | #endif |
433 | ||
075d7359 SC |
434 | { |
435 | lang_memory_region_type *new = | |
1d169acc | 436 | (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type)); |
075d7359 SC |
437 | |
438 | new->name = buystring (name); | |
439 | new->next = (lang_memory_region_type *) NULL; | |
440 | ||
441 | *lang_memory_region_list_tail = new; | |
442 | lang_memory_region_list_tail = &new->next; | |
443 | new->origin = 0; | |
8ddef552 | 444 | new->length = ~(bfd_size_type)0; |
075d7359 SC |
445 | new->current = 0; |
446 | new->had_full_message = false; | |
447 | ||
448 | return new; | |
449 | } | |
2fa0b342 DHW |
450 | } |
451 | ||
452 | ||
2fa0b342 | 453 | lang_output_section_statement_type * |
8ddef552 DM |
454 | lang_output_section_find (name) |
455 | CONST char *CONST name; | |
2fa0b342 DHW |
456 | { |
457 | lang_statement_union_type *u; | |
458 | lang_output_section_statement_type *lookup; | |
459 | ||
460 | for (u = lang_output_section_statement.head; | |
075d7359 | 461 | u != (lang_statement_union_type *) NULL; |
2fa0b342 | 462 | u = lookup->next) |
075d7359 SC |
463 | { |
464 | lookup = &u->output_section_statement; | |
465 | if (strcmp (name, lookup->name) == 0) | |
466 | { | |
1418c83b SC |
467 | return lookup; |
468 | } | |
075d7359 SC |
469 | } |
470 | return (lang_output_section_statement_type *) NULL; | |
2fa0b342 DHW |
471 | } |
472 | ||
473 | lang_output_section_statement_type * | |
8ddef552 DM |
474 | lang_output_section_statement_lookup (name) |
475 | CONST char *CONST name; | |
2fa0b342 DHW |
476 | { |
477 | lang_output_section_statement_type *lookup; | |
2fa0b342 | 478 | |
075d7359 SC |
479 | lookup = lang_output_section_find (name); |
480 | if (lookup == (lang_output_section_statement_type *) NULL) | |
481 | { | |
2fa0b342 | 482 | |
075d7359 SC |
483 | lookup = (lang_output_section_statement_type *) |
484 | new_stat (lang_output_section_statement, stat_ptr); | |
485 | lookup->region = (lang_memory_region_type *) NULL; | |
486 | lookup->fill = 0; | |
487 | lookup->block_value = 1; | |
488 | lookup->name = name; | |
489 | ||
490 | lookup->next = (lang_statement_union_type *) NULL; | |
491 | lookup->bfd_section = (asection *) NULL; | |
492 | lookup->processed = false; | |
ae475b39 | 493 | lookup->loadable = 1; |
075d7359 SC |
494 | lookup->addr_tree = (etree_type *) NULL; |
495 | lang_list_init (&lookup->children); | |
496 | ||
1b8a42f3 ILT |
497 | lookup->memspec = (CONST char *) NULL; |
498 | lookup->flags = 0; | |
499 | lookup->subsection_alignment = -1; | |
500 | lookup->section_alignment = -1; | |
501 | lookup->load_base = (union etree_union *) NULL; | |
061e65f8 | 502 | lookup->phdrs = NULL; |
1b8a42f3 | 503 | |
075d7359 SC |
504 | lang_statement_append (&lang_output_section_statement, |
505 | (lang_statement_union_type *) lookup, | |
506 | &lookup->next); | |
507 | } | |
508 | return lookup; | |
509 | } | |
2fa0b342 | 510 | |
2fa0b342 | 511 | void |
8ddef552 | 512 | lang_map () |
2fa0b342 DHW |
513 | { |
514 | lang_memory_region_type *m; | |
075d7359 | 515 | |
0cacbcbe ILT |
516 | minfo ("\nMemory Configuration\n\n"); |
517 | fprintf (config.map_file, "%-16s %-18s %-18s\n", | |
518 | "Name", "Origin", "Length"); | |
ae475b39 | 519 | |
2fa0b342 | 520 | for (m = lang_memory_region_list; |
075d7359 SC |
521 | m != (lang_memory_region_type *) NULL; |
522 | m = m->next) | |
2fa0b342 | 523 | { |
0cacbcbe ILT |
524 | char buf[100]; |
525 | int len; | |
526 | ||
527 | fprintf (config.map_file, "%-16s ", m->name); | |
528 | ||
529 | sprintf_vma (buf, m->origin); | |
530 | minfo ("0x%s ", buf); | |
531 | len = strlen (buf); | |
532 | while (len < 16) | |
533 | { | |
534 | print_space (); | |
535 | ++len; | |
536 | } | |
537 | ||
538 | minfo ("0x%V\n", m->length); | |
2fa0b342 | 539 | } |
2fa0b342 | 540 | |
0cacbcbe | 541 | fprintf (config.map_file, "\nLinker script and memory map\n\n"); |
2fa0b342 | 542 | |
0cacbcbe | 543 | print_statements (); |
2fa0b342 DHW |
544 | } |
545 | ||
546 | /* | |
547 | * | |
548 | */ | |
075d7359 | 549 | static void |
8ddef552 DM |
550 | init_os (s) |
551 | lang_output_section_statement_type * s; | |
2fa0b342 | 552 | { |
cf2e4f5f ILT |
553 | section_userdata_type *new; |
554 | ||
555 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) | |
556 | einfo ("%P%F: Illegal use of `%s' section", DISCARD_SECTION_NAME); | |
557 | ||
558 | new = ((section_userdata_type *) | |
559 | stat_alloc (sizeof (section_userdata_type))); | |
075d7359 SC |
560 | |
561 | s->bfd_section = bfd_get_section_by_name (output_bfd, s->name); | |
562 | if (s->bfd_section == (asection *) NULL) | |
563 | s->bfd_section = bfd_make_section (output_bfd, s->name); | |
564 | if (s->bfd_section == (asection *) NULL) | |
565 | { | |
ddddcdf0 | 566 | einfo ("%P%F: output format %s cannot represent section called %s\n", |
075d7359 | 567 | output_bfd->xvec->name, s->name); |
9d1fe8a4 | 568 | } |
2fa0b342 | 569 | s->bfd_section->output_section = s->bfd_section; |
7bc4a0d7 | 570 | |
2fa0b342 DHW |
571 | /* We initialize an output sections output offset to minus its own */ |
572 | /* vma to allow us to output a section through itself */ | |
573 | s->bfd_section->output_offset = 0; | |
075d7359 | 574 | get_userdata (s->bfd_section) = (PTR) new; |
2fa0b342 | 575 | } |
23595ba5 ILT |
576 | |
577 | /* Sections marked with the SEC_LINK_ONCE flag should only be linked | |
578 | once into the output. This routine checks each sections, and | |
579 | arranges to discard it if a section of the same name has already | |
580 | been linked. This code assumes that all relevant sections have the | |
581 | SEC_LINK_ONCE flag set; that is, it does not depend solely upon the | |
582 | section name. This is called via bfd_map_over_sections. */ | |
583 | ||
584 | /*ARGSUSED*/ | |
585 | static void | |
586 | section_already_linked (abfd, sec, ignore) | |
587 | bfd *abfd; | |
588 | asection *sec; | |
589 | PTR ignore; | |
590 | { | |
591 | struct sec_link_once | |
592 | { | |
593 | struct sec_link_once *next; | |
594 | asection *sec; | |
595 | }; | |
596 | static struct sec_link_once *sec_link_once_list; | |
597 | flagword flags; | |
598 | const char *name; | |
599 | struct sec_link_once *l; | |
600 | ||
601 | flags = bfd_get_section_flags (abfd, sec); | |
602 | ||
603 | if ((flags & SEC_LINK_ONCE) == 0) | |
604 | return; | |
605 | ||
606 | name = bfd_get_section_name (abfd, sec); | |
607 | ||
608 | for (l = sec_link_once_list; l != NULL; l = l->next) | |
609 | { | |
610 | if (strcmp (name, bfd_get_section_name (l->sec->owner, l->sec)) == 0) | |
611 | { | |
612 | /* The section has already been linked. See if we should | |
613 | issue a warning. */ | |
614 | switch (flags & SEC_LINK_DUPLICATES) | |
615 | { | |
616 | default: | |
617 | abort (); | |
618 | ||
619 | case SEC_LINK_DUPLICATES_DISCARD: | |
620 | break; | |
621 | ||
622 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
0a0d1bdd | 623 | einfo ("%P: %B: warning: ignoring duplicate section `%s'\n", |
23595ba5 ILT |
624 | abfd, name); |
625 | break; | |
626 | ||
627 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
628 | /* FIXME: We should really dig out the contents of both | |
629 | sections and memcmp them. The COFF/PE spec says that | |
630 | the Microsoft linker does not implement this | |
631 | correctly, so I'm not going to bother doing it | |
632 | either. */ | |
633 | /* Fall through. */ | |
634 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
635 | if (bfd_section_size (abfd, sec) | |
636 | != bfd_section_size (l->sec->owner, l->sec)) | |
0a0d1bdd DE |
637 | einfo ("%P: %B: warning: duplicate section `%s' has different size\n", |
638 | abfd, name); | |
23595ba5 ILT |
639 | break; |
640 | } | |
641 | ||
642 | /* Set the output_section field so that wild_doit does not | |
643 | create a lang_input_section structure for this section. */ | |
644 | sec->output_section = bfd_abs_section_ptr; | |
645 | ||
646 | return; | |
647 | } | |
648 | } | |
649 | ||
650 | /* This is the first section with this name. Record it. */ | |
651 | ||
652 | l = (struct sec_link_once *) xmalloc (sizeof *l); | |
653 | l->sec = sec; | |
654 | l->next = sec_link_once_list; | |
655 | sec_link_once_list = l; | |
656 | } | |
64664e69 ILT |
657 | \f |
658 | /* The wild routines. | |
2fa0b342 | 659 | |
64664e69 ILT |
660 | These expand statements like *(.text) and foo.o to a list of |
661 | explicit actions, like foo.o(.text), bar.o(.text) and | |
662 | foo.o(.text, .data). */ | |
1418c83b | 663 | |
64664e69 ILT |
664 | /* Add SECTION to the output section OUTPUT. Do this by creating a |
665 | lang_input_section statement which is placed at PTR. FILE is the | |
666 | input file which holds SECTION. */ | |
075d7359 | 667 | |
0b3499f6 | 668 | void |
8ddef552 | 669 | wild_doit (ptr, section, output, file) |
64664e69 ILT |
670 | lang_statement_list_type *ptr; |
671 | asection *section; | |
672 | lang_output_section_statement_type *output; | |
673 | lang_input_statement_type *file; | |
2fa0b342 | 674 | { |
6429ad7e | 675 | flagword flags; |
23595ba5 ILT |
676 | boolean discard; |
677 | ||
6429ad7e ILT |
678 | flags = bfd_get_section_flags (section->owner, section); |
679 | ||
23595ba5 ILT |
680 | discard = false; |
681 | ||
682 | /* If we are doing a final link, discard sections marked with | |
683 | SEC_EXCLUDE. */ | |
684 | if (! link_info.relocateable | |
6429ad7e | 685 | && (flags & SEC_EXCLUDE) != 0) |
23595ba5 ILT |
686 | discard = true; |
687 | ||
688 | /* Discard input sections which are assigned to a section named | |
689 | DISCARD_SECTION_NAME. */ | |
cf2e4f5f | 690 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) |
23595ba5 ILT |
691 | discard = true; |
692 | ||
6429ad7e ILT |
693 | /* Discard debugging sections if we are stripping debugging |
694 | information. */ | |
695 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
696 | && (flags & SEC_DEBUGGING) != 0) | |
697 | discard = true; | |
698 | ||
23595ba5 | 699 | if (discard) |
cf2e4f5f | 700 | { |
23595ba5 | 701 | if (section->output_section == NULL) |
cf2e4f5f ILT |
702 | { |
703 | /* This prevents future calls from assigning this section. */ | |
704 | section->output_section = bfd_abs_section_ptr; | |
705 | } | |
706 | return; | |
707 | } | |
708 | ||
23595ba5 | 709 | if (section->output_section == NULL) |
ae475b39 | 710 | { |
23595ba5 ILT |
711 | lang_input_section_type *new; |
712 | ||
713 | if (output->bfd_section == NULL) | |
714 | init_os (output); | |
715 | ||
64664e69 | 716 | /* Add a section reference to the list */ |
23595ba5 | 717 | new = new_stat (lang_input_section, ptr); |
64664e69 ILT |
718 | |
719 | new->section = section; | |
720 | new->ifile = file; | |
721 | section->output_section = output->bfd_section; | |
722 | ||
723 | /* We don't copy the SEC_NEVER_LOAD flag from an input section | |
724 | to an output section, because we want to be able to include a | |
725 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
726 | section (I don't know why we want to do this, but we do). | |
727 | build_link_order in ldwrite.c handles this case by turning | |
728 | the embedded SEC_NEVER_LOAD section into a fill. */ | |
729 | section->output_section->flags |= | |
730 | section->flags & (flagword) (~ SEC_NEVER_LOAD); | |
731 | ||
732 | if (! output->loadable) | |
733 | { | |
734 | /* Turn off load flag */ | |
735 | output->bfd_section->flags &= ~SEC_LOAD; | |
736 | output->bfd_section->flags |= SEC_NEVER_LOAD; | |
737 | } | |
738 | ||
739 | if (section->alignment_power > output->bfd_section->alignment_power) | |
740 | output->bfd_section->alignment_power = section->alignment_power; | |
741 | ||
cf2e4f5f | 742 | /* If supplied an aligment, then force it. */ |
64664e69 ILT |
743 | if (output->section_alignment != -1) |
744 | output->bfd_section->alignment_power = output->section_alignment; | |
e20873a7 | 745 | } |
2fa0b342 DHW |
746 | } |
747 | ||
64664e69 ILT |
748 | /* Expand a wild statement for a particular FILE. SECTION may be |
749 | NULL, in which case it is a wild card. */ | |
750 | ||
075d7359 | 751 | static void |
8ddef552 | 752 | wild_section (ptr, section, file, output) |
309c8153 ILT |
753 | lang_wild_statement_type *ptr; |
754 | const char *section; | |
755 | lang_input_statement_type *file; | |
756 | lang_output_section_statement_type *output; | |
2fa0b342 | 757 | { |
075d7359 SC |
758 | if (file->just_syms_flag == false) |
759 | { | |
309c8153 ILT |
760 | register asection *s; |
761 | ||
762 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
075d7359 | 763 | { |
309c8153 ILT |
764 | /* Attach all sections named SECTION. If SECTION is NULL, |
765 | then attach all sections. | |
766 | ||
767 | Previously, if SECTION was NULL, this code did not call | |
768 | wild_doit if the SEC_IS_COMMON flag was set for the | |
769 | section. I did not understand that, and I took it out. | |
770 | --ian@cygnus.com. */ | |
771 | ||
772 | if (section == NULL | |
773 | || strcmp (bfd_get_section_name (file->the_bfd, s), | |
774 | section) == 0) | |
f9d3d71a | 775 | wild_doit (&ptr->children, s, output, file); |
075d7359 | 776 | } |
2fa0b342 | 777 | } |
2fa0b342 DHW |
778 | } |
779 | ||
64664e69 ILT |
780 | /* This is passed a file name which must have been seen already and |
781 | added to the statement tree. We will see if it has been opened | |
782 | already and had its symbols read. If not then we'll read it. */ | |
2fa0b342 | 783 | |
193c5f93 ILT |
784 | static lang_input_statement_type * |
785 | lookup_name (name) | |
64664e69 | 786 | const char *name; |
2fa0b342 DHW |
787 | { |
788 | lang_input_statement_type *search; | |
075d7359 SC |
789 | |
790 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
791 | search != (lang_input_statement_type *) NULL; | |
792 | search = (lang_input_statement_type *) search->next_real_file) | |
793 | { | |
794 | if (search->filename == (char *) NULL && name == (char *) NULL) | |
c477527c ILT |
795 | return search; |
796 | if (search->filename != (char *) NULL | |
797 | && name != (char *) NULL | |
798 | && strcmp (search->filename, name) == 0) | |
799 | break; | |
075d7359 | 800 | } |
2fa0b342 | 801 | |
c477527c | 802 | if (search == (lang_input_statement_type *) NULL) |
193c5f93 ILT |
803 | search = new_afile (name, lang_input_file_is_file_enum, default_target, |
804 | false); | |
c477527c | 805 | |
5e6cd559 ILT |
806 | /* If we have already added this file, or this file is not real |
807 | (FIXME: can that ever actually happen?) or the name is NULL | |
808 | (FIXME: can that ever actually happen?) don't add this file. */ | |
193c5f93 | 809 | if (search->loaded |
5e6cd559 ILT |
810 | || ! search->real |
811 | || search->filename == (const char *) NULL) | |
812 | return search; | |
813 | ||
6a02a973 | 814 | load_symbols (search, (lang_statement_list_type *) NULL); |
193c5f93 ILT |
815 | |
816 | return search; | |
817 | } | |
818 | ||
819 | /* Get the symbols for an input file. */ | |
c477527c | 820 | |
193c5f93 | 821 | static void |
6a02a973 | 822 | load_symbols (entry, place) |
193c5f93 | 823 | lang_input_statement_type *entry; |
6a02a973 | 824 | lang_statement_list_type *place; |
193c5f93 | 825 | { |
0b3499f6 ILT |
826 | char **matching; |
827 | ||
193c5f93 ILT |
828 | if (entry->loaded) |
829 | return; | |
830 | ||
831 | ldfile_open_file (entry); | |
832 | ||
0b3499f6 ILT |
833 | if (! bfd_check_format (entry->the_bfd, bfd_archive) |
834 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
835 | { | |
836 | bfd_error_type err; | |
6a02a973 | 837 | lang_statement_list_type *hold; |
0b3499f6 ILT |
838 | |
839 | err = bfd_get_error (); | |
840 | if (err == bfd_error_file_ambiguously_recognized) | |
841 | { | |
842 | char **p; | |
843 | ||
844 | einfo ("%B: file not recognized: %E\n", entry->the_bfd); | |
845 | einfo ("%B: matching formats:", entry->the_bfd); | |
846 | for (p = matching; *p != NULL; p++) | |
847 | einfo (" %s", *p); | |
848 | einfo ("%F\n"); | |
849 | } | |
6a02a973 ILT |
850 | else if (err != bfd_error_file_not_recognized |
851 | || place == NULL) | |
0b3499f6 ILT |
852 | einfo ("%F%B: file not recognized: %E\n", entry->the_bfd); |
853 | ||
0b3499f6 ILT |
854 | bfd_close (entry->the_bfd); |
855 | entry->the_bfd = NULL; | |
856 | ||
64664e69 ILT |
857 | /* See if the emulation has some special knowledge. */ |
858 | ||
859 | if (ldemul_unrecognized_file (entry)) | |
860 | return; | |
861 | ||
862 | /* Try to interpret the file as a linker script. */ | |
863 | ||
0b3499f6 ILT |
864 | ldfile_open_command_file (entry->filename); |
865 | ||
6a02a973 ILT |
866 | hold = stat_ptr; |
867 | stat_ptr = place; | |
868 | ||
0b3499f6 ILT |
869 | ldfile_assumed_script = true; |
870 | parser_input = input_script; | |
871 | yyparse (); | |
872 | ldfile_assumed_script = false; | |
873 | ||
6a02a973 ILT |
874 | stat_ptr = hold; |
875 | ||
0b3499f6 ILT |
876 | return; |
877 | } | |
878 | ||
879 | /* We don't call ldlang_add_file for an archive. Instead, the | |
880 | add_symbols entry point will call ldlang_add_file, via the | |
881 | add_archive_element callback, for each element of the archive | |
882 | which is used. */ | |
f400bbbb | 883 | switch (bfd_get_format (entry->the_bfd)) |
5e6cd559 | 884 | { |
f400bbbb ILT |
885 | default: |
886 | break; | |
887 | ||
888 | case bfd_object: | |
193c5f93 | 889 | ldlang_add_file (entry); |
5e6cd559 | 890 | if (trace_files || trace_file_tries) |
193c5f93 | 891 | info_msg ("%I\n", entry); |
f400bbbb ILT |
892 | break; |
893 | ||
894 | case bfd_archive: | |
3c8deccc | 895 | if (entry->whole_archive) |
f400bbbb ILT |
896 | { |
897 | bfd *member = bfd_openr_next_archived_file (entry->the_bfd, | |
898 | (bfd *) NULL); | |
899 | while (member != NULL) | |
900 | { | |
901 | if (! bfd_check_format (member, bfd_object)) | |
902 | einfo ("%F%B: object %B in archive is not object\n", | |
903 | entry->the_bfd, member); | |
904 | if (! ((*link_info.callbacks->add_archive_element) | |
0cacbcbe | 905 | (&link_info, member, "--whole-archive"))) |
f400bbbb ILT |
906 | abort (); |
907 | if (! bfd_link_add_symbols (member, &link_info)) | |
908 | einfo ("%F%B: could not read symbols: %E\n", member); | |
909 | member = bfd_openr_next_archived_file (entry->the_bfd, | |
910 | member); | |
911 | } | |
912 | ||
913 | entry->loaded = true; | |
914 | ||
915 | return; | |
916 | } | |
5e6cd559 | 917 | } |
1418c83b | 918 | |
0b3499f6 | 919 | if (! bfd_link_add_symbols (entry->the_bfd, &link_info)) |
193c5f93 | 920 | einfo ("%F%B: could not read symbols: %E\n", entry->the_bfd); |
5e6cd559 | 921 | |
193c5f93 | 922 | entry->loaded = true; |
2fa0b342 DHW |
923 | } |
924 | ||
64664e69 ILT |
925 | /* Handle a wild statement. SECTION or FILE or both may be NULL, |
926 | indicating that it is a wildcard. Separate lang_input_section | |
927 | statements are created for each part of the expansion; they are | |
928 | added after the wild statement S. OUTPUT is the output section. */ | |
929 | ||
2fa0b342 | 930 | static void |
8ddef552 | 931 | wild (s, section, file, target, output) |
64664e69 ILT |
932 | lang_wild_statement_type *s; |
933 | const char *section; | |
934 | const char *file; | |
935 | const char *target; | |
936 | lang_output_section_statement_type *output; | |
2fa0b342 DHW |
937 | { |
938 | lang_input_statement_type *f; | |
075d7359 SC |
939 | |
940 | if (file == (char *) NULL) | |
941 | { | |
942 | /* Perform the iteration over all files in the list */ | |
943 | for (f = (lang_input_statement_type *) file_chain.head; | |
944 | f != (lang_input_statement_type *) NULL; | |
945 | f = (lang_input_statement_type *) f->next) | |
946 | { | |
947 | wild_section (s, section, f, output); | |
948 | } | |
949 | } | |
950 | else | |
951 | { | |
952 | /* Perform the iteration over a single file */ | |
3d0c8fa1 ILT |
953 | f = lookup_name (file); |
954 | if (f->the_bfd == NULL | |
955 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
956 | wild_section (s, section, f, output); | |
957 | else | |
958 | { | |
959 | bfd *member; | |
960 | ||
961 | /* This is an archive file. We must map each member of the | |
962 | archive separately. */ | |
963 | member = bfd_openr_next_archived_file (f->the_bfd, (bfd *) NULL); | |
964 | while (member != NULL) | |
965 | { | |
966 | /* When lookup_name is called, it will call the | |
967 | add_symbols entry point for the archive. For each | |
968 | element of the archive which is included, BFD will | |
969 | call ldlang_add_file, which will set the usrdata | |
970 | field of the member to the lang_input_statement. */ | |
971 | if (member->usrdata != NULL) | |
972 | { | |
973 | wild_section (s, section, | |
974 | (lang_input_statement_type *) member->usrdata, | |
975 | output); | |
976 | } | |
977 | ||
978 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
979 | } | |
980 | } | |
075d7359 | 981 | } |
64664e69 | 982 | |
075d7359 SC |
983 | if (section != (char *) NULL |
984 | && strcmp (section, "COMMON") == 0 | |
64664e69 | 985 | && default_common_section == NULL) |
075d7359 | 986 | { |
64664e69 ILT |
987 | /* Remember the section that common is going to in case we later |
988 | get something which doesn't know where to put it. */ | |
075d7359 | 989 | default_common_section = output; |
2fa0b342 | 990 | } |
2fa0b342 DHW |
991 | } |
992 | ||
64664e69 | 993 | /* Open the output file. */ |
97fbbaca | 994 | |
075d7359 | 995 | static bfd * |
8ddef552 | 996 | open_output (name) |
64664e69 | 997 | const char *name; |
2fa0b342 | 998 | { |
097879bc | 999 | bfd *output; |
097879bc | 1000 | |
075d7359 | 1001 | if (output_target == (char *) NULL) |
ae475b39 SC |
1002 | { |
1003 | if (current_target != (char *) NULL) | |
1004 | output_target = current_target; | |
1005 | else | |
1006 | output_target = default_target; | |
1007 | } | |
075d7359 | 1008 | output = bfd_openw (name, output_target); |
075d7359 SC |
1009 | |
1010 | if (output == (bfd *) NULL) | |
1011 | { | |
5bcb7f28 | 1012 | if (bfd_get_error () == bfd_error_invalid_target) |
ae475b39 | 1013 | { |
ddddcdf0 | 1014 | einfo ("%P%F: target %s not found\n", output_target); |
ae475b39 | 1015 | } |
ddddcdf0 | 1016 | einfo ("%P%F: cannot open output file %s: %E\n", name); |
075d7359 | 1017 | } |
30d1a390 | 1018 | |
97fbbaca JL |
1019 | delete_output_file_on_failure = 1; |
1020 | ||
30d1a390 | 1021 | /* output->flags |= D_PAGED;*/ |
075d7359 | 1022 | |
ddddcdf0 ILT |
1023 | if (! bfd_set_format (output, bfd_object)) |
1024 | einfo ("%P%F:%s: can not make object file: %E\n", name); | |
1025 | if (! bfd_set_arch_mach (output, | |
1026 | ldfile_output_architecture, | |
1027 | ldfile_output_machine)) | |
1028 | einfo ("%P%F:%s: can not set architecture: %E\n", name); | |
1029 | ||
c477527c ILT |
1030 | link_info.hash = bfd_link_hash_table_create (output); |
1031 | if (link_info.hash == (struct bfd_link_hash_table *) NULL) | |
1032 | einfo ("%P%F: can not create link hash table: %E\n"); | |
1033 | ||
1b8a42f3 | 1034 | bfd_set_gp_size (output, g_switch_value); |
2fa0b342 DHW |
1035 | return output; |
1036 | } | |
1418c83b SC |
1037 | |
1038 | ||
097879bc | 1039 | |
1418c83b | 1040 | |
2fa0b342 | 1041 | static void |
8ddef552 DM |
1042 | ldlang_open_output (statement) |
1043 | lang_statement_union_type * statement; | |
2fa0b342 | 1044 | { |
075d7359 SC |
1045 | switch (statement->header.type) |
1046 | { | |
c477527c ILT |
1047 | case lang_output_statement_enum: |
1048 | ASSERT (output_bfd == (bfd *) NULL); | |
075d7359 SC |
1049 | output_bfd = open_output (statement->output_statement.name); |
1050 | ldemul_set_output_arch (); | |
c477527c | 1051 | if (config.magic_demand_paged && !link_info.relocateable) |
075d7359 SC |
1052 | output_bfd->flags |= D_PAGED; |
1053 | else | |
1054 | output_bfd->flags &= ~D_PAGED; | |
1055 | if (config.text_read_only) | |
1056 | output_bfd->flags |= WP_TEXT; | |
1057 | else | |
1058 | output_bfd->flags &= ~WP_TEXT; | |
6799c638 | 1059 | if (link_info.traditional_format) |
c96386c4 ILT |
1060 | output_bfd->flags |= BFD_TRADITIONAL_FORMAT; |
1061 | else | |
1062 | output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; | |
075d7359 | 1063 | break; |
1418c83b | 1064 | |
075d7359 SC |
1065 | case lang_target_statement_enum: |
1066 | current_target = statement->target_statement.target; | |
1067 | break; | |
1068 | default: | |
1069 | break; | |
1070 | } | |
1418c83b | 1071 | } |
2fa0b342 | 1072 | |
309c8153 ILT |
1073 | /* Open all the input files. */ |
1074 | ||
1418c83b | 1075 | static void |
309c8153 ILT |
1076 | open_input_bfds (s, force) |
1077 | lang_statement_union_type *s; | |
1078 | boolean force; | |
1418c83b | 1079 | { |
309c8153 | 1080 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
075d7359 | 1081 | { |
309c8153 | 1082 | switch (s->header.type) |
075d7359 | 1083 | { |
309c8153 ILT |
1084 | case lang_constructors_statement_enum: |
1085 | open_input_bfds (constructor_list.head, force); | |
1086 | break; | |
1087 | case lang_output_section_statement_enum: | |
1088 | open_input_bfds (s->output_section_statement.children.head, force); | |
1089 | break; | |
1090 | case lang_wild_statement_enum: | |
1091 | /* Maybe we should load the file's symbols */ | |
1092 | if (s->wild_statement.filename) | |
1093 | (void) lookup_name (s->wild_statement.filename); | |
1094 | open_input_bfds (s->wild_statement.children.head, force); | |
1095 | break; | |
1096 | case lang_group_statement_enum: | |
1097 | { | |
1098 | struct bfd_link_hash_entry *undefs; | |
1099 | ||
1100 | /* We must continually search the entries in the group | |
1101 | until no new symbols are added to the list of undefined | |
1102 | symbols. */ | |
1103 | ||
1104 | do | |
1105 | { | |
1106 | undefs = link_info.hash->undefs_tail; | |
1107 | open_input_bfds (s->group_statement.children.head, true); | |
1108 | } | |
1109 | while (undefs != link_info.hash->undefs_tail); | |
1110 | } | |
1111 | break; | |
1112 | case lang_target_statement_enum: | |
1113 | current_target = s->target_statement.target; | |
1114 | break; | |
1115 | case lang_input_statement_enum: | |
1116 | if (s->input_statement.real == true) | |
1117 | { | |
6a02a973 ILT |
1118 | lang_statement_list_type add; |
1119 | ||
309c8153 ILT |
1120 | s->input_statement.target = current_target; |
1121 | ||
1122 | /* If we are being called from within a group, and this | |
1123 | is an archive which has already been searched, then | |
1124 | force it to be researched. */ | |
1125 | if (force | |
1126 | && s->input_statement.loaded | |
1127 | && bfd_check_format (s->input_statement.the_bfd, | |
1128 | bfd_archive)) | |
1129 | s->input_statement.loaded = false; | |
1130 | ||
6a02a973 ILT |
1131 | lang_list_init (&add); |
1132 | ||
1133 | load_symbols (&s->input_statement, &add); | |
1134 | ||
1135 | if (add.head != NULL) | |
1136 | { | |
1137 | *add.tail = s->next; | |
1138 | s->next = add.head; | |
1139 | } | |
309c8153 ILT |
1140 | } |
1141 | break; | |
1142 | default: | |
1143 | break; | |
075d7359 | 1144 | } |
075d7359 | 1145 | } |
2fa0b342 | 1146 | } |
075d7359 | 1147 | |
2fa0b342 DHW |
1148 | /* If there are [COMMONS] statements, put a wild one into the bss section */ |
1149 | ||
1150 | static void | |
075d7359 | 1151 | lang_reasonable_defaults () |
2fa0b342 | 1152 | { |
1418c83b | 1153 | #if 0 |
075d7359 SC |
1154 | lang_output_section_statement_lookup (".text"); |
1155 | lang_output_section_statement_lookup (".data"); | |
8cb5eb31 | 1156 | |
075d7359 SC |
1157 | default_common_section = |
1158 | lang_output_section_statement_lookup (".bss"); | |
8cb5eb31 | 1159 | |
1418c83b | 1160 | |
075d7359 SC |
1161 | if (placed_commons == false) |
1162 | { | |
1163 | lang_wild_statement_type *new = | |
1164 | new_stat (lang_wild_statement, | |
1165 | &default_common_section->children); | |
1166 | ||
1167 | new->section_name = "COMMON"; | |
1168 | new->filename = (char *) NULL; | |
1169 | lang_list_init (&new->children); | |
1170 | } | |
1418c83b | 1171 | #endif |
8cb5eb31 | 1172 | |
2fa0b342 DHW |
1173 | } |
1174 | ||
1418c83b SC |
1175 | /* |
1176 | Add the supplied name to the symbol table as an undefined reference. | |
1177 | Remove items from the chain as we open input bfds | |
1178 | */ | |
075d7359 SC |
1179 | typedef struct ldlang_undef_chain_list |
1180 | { | |
f177a611 | 1181 | struct ldlang_undef_chain_list *next; |
1418c83b | 1182 | char *name; |
075d7359 | 1183 | } ldlang_undef_chain_list_type; |
1418c83b SC |
1184 | |
1185 | static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head; | |
1186 | ||
1187 | void | |
8ddef552 DM |
1188 | ldlang_add_undef (name) |
1189 | CONST char *CONST name; | |
2fa0b342 | 1190 | { |
1418c83b | 1191 | ldlang_undef_chain_list_type *new = |
1d169acc ILT |
1192 | ((ldlang_undef_chain_list_type *) |
1193 | stat_alloc (sizeof (ldlang_undef_chain_list_type))); | |
1418c83b SC |
1194 | |
1195 | new->next = ldlang_undef_chain_list_head; | |
1196 | ldlang_undef_chain_list_head = new; | |
1197 | ||
075d7359 | 1198 | new->name = buystring (name); |
1418c83b | 1199 | } |
075d7359 | 1200 | |
1418c83b SC |
1201 | /* Run through the list of undefineds created above and place them |
1202 | into the linker hash table as undefined symbols belonging to the | |
1203 | script file. | |
1204 | */ | |
1205 | static void | |
8ddef552 | 1206 | lang_place_undefineds () |
1418c83b | 1207 | { |
c477527c | 1208 | ldlang_undef_chain_list_type *ptr; |
1418c83b | 1209 | |
c477527c ILT |
1210 | for (ptr = ldlang_undef_chain_list_head; |
1211 | ptr != (ldlang_undef_chain_list_type *) NULL; | |
1212 | ptr = ptr->next) | |
075d7359 | 1213 | { |
c477527c | 1214 | struct bfd_link_hash_entry *h; |
075d7359 | 1215 | |
c477527c ILT |
1216 | h = bfd_link_hash_lookup (link_info.hash, ptr->name, true, false, true); |
1217 | if (h == (struct bfd_link_hash_entry *) NULL) | |
1218 | einfo ("%P%F: bfd_link_hash_lookup failed: %E"); | |
1219 | if (h->type == bfd_link_hash_new) | |
1220 | { | |
1221 | h->type = bfd_link_hash_undefined; | |
1222 | h->u.undef.abfd = NULL; | |
1223 | bfd_link_add_undef (link_info.hash, h); | |
1224 | } | |
075d7359 SC |
1225 | } |
1226 | } | |
1418c83b | 1227 | |
2fa0b342 DHW |
1228 | /* Open input files and attatch to output sections */ |
1229 | static void | |
8ddef552 DM |
1230 | map_input_to_output_sections (s, target, output_section_statement) |
1231 | lang_statement_union_type * s; | |
1232 | CONST char *target; | |
1233 | lang_output_section_statement_type * output_section_statement; | |
2fa0b342 | 1234 | { |
075d7359 | 1235 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
2fa0b342 | 1236 | { |
075d7359 | 1237 | switch (s->header.type) |
2fa0b342 | 1238 | { |
075d7359 SC |
1239 | |
1240 | ||
1241 | case lang_wild_statement_enum: | |
1242 | wild (&s->wild_statement, s->wild_statement.section_name, | |
1243 | s->wild_statement.filename, target, | |
1244 | output_section_statement); | |
1245 | ||
1246 | break; | |
1247 | case lang_constructors_statement_enum: | |
1248 | map_input_to_output_sections (constructor_list.head, | |
1249 | target, | |
1250 | output_section_statement); | |
1251 | break; | |
1252 | case lang_output_section_statement_enum: | |
1253 | map_input_to_output_sections (s->output_section_statement.children.head, | |
1254 | target, | |
1255 | &s->output_section_statement); | |
1256 | break; | |
1257 | case lang_output_statement_enum: | |
1258 | break; | |
1259 | case lang_target_statement_enum: | |
1260 | target = s->target_statement.target; | |
1261 | break; | |
309c8153 ILT |
1262 | case lang_group_statement_enum: |
1263 | map_input_to_output_sections (s->group_statement.children.head, | |
1264 | target, | |
1265 | output_section_statement); | |
1266 | break; | |
075d7359 SC |
1267 | case lang_fill_statement_enum: |
1268 | case lang_input_section_enum: | |
1269 | case lang_object_symbols_statement_enum: | |
1270 | case lang_data_statement_enum: | |
4fdbafb2 | 1271 | case lang_reloc_statement_enum: |
075d7359 SC |
1272 | case lang_assignment_statement_enum: |
1273 | case lang_padding_statement_enum: | |
f9d3d71a ILT |
1274 | case lang_input_statement_enum: |
1275 | if (output_section_statement != NULL | |
1276 | && output_section_statement->bfd_section == NULL) | |
1277 | init_os (output_section_statement); | |
075d7359 SC |
1278 | break; |
1279 | case lang_afile_asection_pair_statement_enum: | |
1280 | FAIL (); | |
1281 | break; | |
1282 | case lang_address_statement_enum: | |
1283 | /* Mark the specified section with the supplied address */ | |
1284 | { | |
1285 | lang_output_section_statement_type *os = | |
ef01a8a8 ILT |
1286 | lang_output_section_statement_lookup |
1287 | (s->address_statement.section_name); | |
075d7359 | 1288 | |
ef01a8a8 ILT |
1289 | if (os->bfd_section == NULL) |
1290 | init_os (os); | |
075d7359 | 1291 | os->addr_tree = s->address_statement.address; |
48491e2e | 1292 | } |
075d7359 | 1293 | break; |
2fa0b342 | 1294 | } |
2fa0b342 DHW |
1295 | } |
1296 | } | |
1297 | ||
075d7359 | 1298 | static void |
8ddef552 DM |
1299 | print_output_section_statement (output_section_statement) |
1300 | lang_output_section_statement_type * output_section_statement; | |
2fa0b342 DHW |
1301 | { |
1302 | asection *section = output_section_statement->bfd_section; | |
0cacbcbe | 1303 | int len; |
075d7359 | 1304 | |
0cacbcbe ILT |
1305 | if (output_section_statement != abs_output_section) |
1306 | { | |
1307 | minfo ("\n%s", output_section_statement->name); | |
075d7359 | 1308 | |
0cacbcbe ILT |
1309 | if (section != NULL) |
1310 | { | |
1311 | print_dot = section->vma; | |
e20873a7 | 1312 | |
0cacbcbe ILT |
1313 | len = strlen (output_section_statement->name); |
1314 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
1315 | { | |
1316 | print_nl (); | |
1317 | len = 0; | |
1318 | } | |
1319 | while (len < SECTION_NAME_MAP_LENGTH) | |
1320 | { | |
1321 | print_space (); | |
1322 | ++len; | |
1323 | } | |
2fa0b342 | 1324 | |
0cacbcbe ILT |
1325 | minfo ("0x%V %W", section->vma, section->_raw_size); |
1326 | ||
1327 | if (output_section_statement->load_base != NULL) | |
1328 | { | |
1329 | bfd_vma addr; | |
1330 | ||
1331 | addr = exp_get_abs_int (output_section_statement->load_base, 0, | |
1332 | "load base", lang_final_phase_enum); | |
1333 | minfo (" load address 0x%V", addr); | |
1334 | } | |
1335 | } | |
1336 | ||
1337 | print_nl (); | |
e20873a7 | 1338 | } |
0cacbcbe | 1339 | |
708f7fbc ILT |
1340 | print_statement_list (output_section_statement->children.head, |
1341 | output_section_statement); | |
2fa0b342 DHW |
1342 | } |
1343 | ||
075d7359 | 1344 | static void |
8ddef552 DM |
1345 | print_assignment (assignment, output_section) |
1346 | lang_assignment_statement_type * assignment; | |
1347 | lang_output_section_statement_type * output_section; | |
2fa0b342 | 1348 | { |
0cacbcbe | 1349 | int i; |
2fa0b342 | 1350 | etree_value_type result; |
075d7359 | 1351 | |
0cacbcbe ILT |
1352 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
1353 | print_space (); | |
075d7359 | 1354 | |
0cacbcbe ILT |
1355 | result = exp_fold_tree (assignment->exp->assign.src, output_section, |
1356 | lang_final_phase_enum, print_dot, &print_dot); | |
075d7359 | 1357 | if (result.valid) |
0cacbcbe | 1358 | minfo ("0x%V", result.value + result.section->bfd_section->vma); |
075d7359 SC |
1359 | else |
1360 | { | |
0cacbcbe ILT |
1361 | minfo ("*undef* "); |
1362 | #ifdef BFD64 | |
1363 | minfo (" "); | |
1364 | #endif | |
075d7359 | 1365 | } |
0cacbcbe ILT |
1366 | |
1367 | minfo (" "); | |
1368 | ||
075d7359 SC |
1369 | exp_print_tree (assignment->exp); |
1370 | ||
0cacbcbe | 1371 | print_nl (); |
2fa0b342 DHW |
1372 | } |
1373 | ||
1374 | static void | |
8ddef552 DM |
1375 | print_input_statement (statm) |
1376 | lang_input_statement_type * statm; | |
2fa0b342 | 1377 | { |
075d7359 SC |
1378 | if (statm->filename != (char *) NULL) |
1379 | { | |
1380 | fprintf (config.map_file, "LOAD %s\n", statm->filename); | |
1381 | } | |
2fa0b342 DHW |
1382 | } |
1383 | ||
0cacbcbe ILT |
1384 | /* Print all symbols defined in a particular section. This is called |
1385 | via bfd_link_hash_traverse. */ | |
804c8601 SC |
1386 | |
1387 | static boolean | |
1388 | print_one_symbol (hash_entry, ptr) | |
0cacbcbe ILT |
1389 | struct bfd_link_hash_entry *hash_entry; |
1390 | PTR ptr; | |
2fa0b342 | 1391 | { |
0cacbcbe | 1392 | asection *sec = (asection *) ptr; |
804c8601 | 1393 | |
0cacbcbe ILT |
1394 | if ((hash_entry->type == bfd_link_hash_defined |
1395 | || hash_entry->type == bfd_link_hash_defweak) | |
1396 | && sec == hash_entry->u.def.section) | |
804c8601 | 1397 | { |
0cacbcbe ILT |
1398 | int i; |
1399 | ||
1400 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
1401 | print_space (); | |
1402 | minfo ("0x%V ", | |
1403 | (hash_entry->u.def.value | |
1404 | + hash_entry->u.def.section->output_offset | |
1405 | + hash_entry->u.def.section->output_section->vma)); | |
1406 | ||
1407 | minfo (" %T\n", hash_entry->root.string); | |
804c8601 | 1408 | } |
09a5aa5e KR |
1409 | |
1410 | return true; | |
2fa0b342 | 1411 | } |
1418c83b | 1412 | |
0cacbcbe ILT |
1413 | /* Print information about an input section to the map file. */ |
1414 | ||
075d7359 | 1415 | static void |
8ddef552 DM |
1416 | print_input_section (in) |
1417 | lang_input_section_type * in; | |
2fa0b342 DHW |
1418 | { |
1419 | asection *i = in->section; | |
f078dc7c | 1420 | bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size; |
1418c83b | 1421 | |
075d7359 SC |
1422 | if (size != 0) |
1423 | { | |
0cacbcbe ILT |
1424 | print_space (); |
1425 | ||
1426 | minfo ("%s", i->name); | |
1427 | ||
1428 | if (i->output_section != NULL) | |
075d7359 | 1429 | { |
0cacbcbe | 1430 | int len; |
2fa0b342 | 1431 | |
0cacbcbe ILT |
1432 | len = 1 + strlen (i->name); |
1433 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
1434 | { | |
1435 | print_nl (); | |
1436 | len = 0; | |
1437 | } | |
1438 | while (len < SECTION_NAME_MAP_LENGTH) | |
1439 | { | |
1440 | print_space (); | |
1441 | ++len; | |
1442 | } | |
2fa0b342 | 1443 | |
0cacbcbe ILT |
1444 | minfo ("0x%V %W %B\n", |
1445 | i->output_section->vma + i->output_offset, size, | |
1446 | i->owner); | |
2fa0b342 | 1447 | |
0cacbcbe ILT |
1448 | if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size) |
1449 | { | |
1450 | len = SECTION_NAME_MAP_LENGTH + 3; | |
1451 | #ifdef BFD64 | |
1452 | len += 16; | |
1453 | #else | |
1454 | len += 8; | |
1455 | #endif | |
1456 | while (len > 0) | |
075d7359 | 1457 | { |
0cacbcbe ILT |
1458 | print_space (); |
1459 | --len; | |
075d7359 | 1460 | } |
2fa0b342 | 1461 | |
0cacbcbe | 1462 | minfo ("%W (size before relaxing)\n", i->_raw_size); |
075d7359 SC |
1463 | } |
1464 | ||
0cacbcbe | 1465 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i); |
075d7359 | 1466 | |
0cacbcbe | 1467 | print_dot = i->output_section->vma + i->output_offset + size; |
075d7359 SC |
1468 | } |
1469 | } | |
1470 | } | |
2fa0b342 DHW |
1471 | |
1472 | static void | |
8ddef552 DM |
1473 | print_fill_statement (fill) |
1474 | lang_fill_statement_type * fill; | |
075d7359 | 1475 | { |
0cacbcbe | 1476 | fprintf (config.map_file, " FILL mask 0x%x\n", fill->fill); |
075d7359 SC |
1477 | } |
1478 | ||
1479 | static void | |
8ddef552 DM |
1480 | print_data_statement (data) |
1481 | lang_data_statement_type * data; | |
2fa0b342 | 1482 | { |
0cacbcbe ILT |
1483 | int i; |
1484 | bfd_vma addr; | |
1485 | bfd_size_type size; | |
1486 | const char *name; | |
1487 | ||
1488 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
1489 | print_space (); | |
1490 | ||
1491 | addr = data->output_vma; | |
1492 | if (data->output_section != NULL) | |
1493 | addr += data->output_section->vma; | |
2fa0b342 | 1494 | |
075d7359 SC |
1495 | switch (data->type) |
1496 | { | |
0cacbcbe ILT |
1497 | default: |
1498 | abort (); | |
075d7359 | 1499 | case BYTE: |
0cacbcbe ILT |
1500 | size = BYTE_SIZE; |
1501 | name = "BYTE"; | |
075d7359 SC |
1502 | break; |
1503 | case SHORT: | |
0cacbcbe ILT |
1504 | size = SHORT_SIZE; |
1505 | name = "SHORT"; | |
075d7359 SC |
1506 | break; |
1507 | case LONG: | |
0cacbcbe ILT |
1508 | size = LONG_SIZE; |
1509 | name = "LONG"; | |
075d7359 | 1510 | break; |
c477527c | 1511 | case QUAD: |
0cacbcbe ILT |
1512 | size = QUAD_SIZE; |
1513 | name = "QUAD"; | |
c477527c | 1514 | break; |
075d7359 SC |
1515 | } |
1516 | ||
0cacbcbe ILT |
1517 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); |
1518 | ||
1519 | if (data->exp->type.node_class != etree_value) | |
1520 | { | |
1521 | print_space (); | |
1522 | exp_print_tree (data->exp); | |
1523 | } | |
1524 | ||
1525 | print_nl (); | |
1526 | ||
1527 | print_dot = addr + size; | |
1528 | } | |
1529 | ||
1530 | /* Print an address statement. These are generated by options like | |
1531 | -Ttext. */ | |
2fa0b342 | 1532 | |
0cacbcbe ILT |
1533 | static void |
1534 | print_address_statement (address) | |
1535 | lang_address_statement_type *address; | |
1536 | { | |
1537 | minfo ("Address of section %s set to ", address->section_name); | |
1538 | exp_print_tree (address->address); | |
1539 | print_nl (); | |
2fa0b342 DHW |
1540 | } |
1541 | ||
4fdbafb2 ILT |
1542 | /* Print a reloc statement. */ |
1543 | ||
1544 | static void | |
1545 | print_reloc_statement (reloc) | |
1546 | lang_reloc_statement_type *reloc; | |
1547 | { | |
0cacbcbe ILT |
1548 | int i; |
1549 | bfd_vma addr; | |
1550 | bfd_size_type size; | |
1551 | ||
1552 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
1553 | print_space (); | |
4fdbafb2 | 1554 | |
0cacbcbe ILT |
1555 | addr = reloc->output_vma; |
1556 | if (reloc->output_section != NULL) | |
1557 | addr += reloc->output_section->vma; | |
4fdbafb2 | 1558 | |
0cacbcbe | 1559 | size = bfd_get_reloc_size (reloc->howto); |
4fdbafb2 | 1560 | |
0cacbcbe | 1561 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); |
4fdbafb2 | 1562 | |
0cacbcbe ILT |
1563 | if (reloc->name != NULL) |
1564 | minfo ("%s+", reloc->name); | |
1565 | else | |
1566 | minfo ("%s+", reloc->section->name); | |
4fdbafb2 ILT |
1567 | |
1568 | exp_print_tree (reloc->addend_exp); | |
1569 | ||
0cacbcbe ILT |
1570 | print_nl (); |
1571 | ||
1572 | print_dot = addr + size; | |
4fdbafb2 | 1573 | } |
2fa0b342 DHW |
1574 | |
1575 | static void | |
8ddef552 | 1576 | print_padding_statement (s) |
0cacbcbe | 1577 | lang_padding_statement_type *s; |
075d7359 | 1578 | { |
0cacbcbe ILT |
1579 | int len; |
1580 | bfd_vma addr; | |
1581 | ||
1582 | minfo (" *fill*"); | |
1583 | ||
1584 | len = sizeof " *fill*" - 1; | |
1585 | while (len < SECTION_NAME_MAP_LENGTH) | |
1586 | { | |
1587 | print_space (); | |
1588 | ++len; | |
1589 | } | |
1590 | ||
1591 | addr = s->output_offset; | |
1592 | if (s->output_section != NULL) | |
1593 | addr += s->output_section->vma; | |
1594 | minfo ("0x%V %W", addr, s->size); | |
1595 | ||
1596 | if (s->fill != 0) | |
1597 | minfo (" 0x%x", s->fill); | |
1598 | ||
075d7359 | 1599 | print_nl (); |
ffc50032 | 1600 | |
0cacbcbe | 1601 | print_dot = addr + s->size; |
2fa0b342 DHW |
1602 | } |
1603 | ||
075d7359 | 1604 | static void |
8ddef552 DM |
1605 | print_wild_statement (w, os) |
1606 | lang_wild_statement_type * w; | |
1607 | lang_output_section_statement_type * os; | |
2fa0b342 | 1608 | { |
0cacbcbe ILT |
1609 | print_space (); |
1610 | ||
1611 | if (w->filename != NULL) | |
1612 | minfo ("%s", w->filename); | |
075d7359 | 1613 | else |
0cacbcbe ILT |
1614 | minfo ("*"); |
1615 | ||
1616 | if (w->section_name != NULL) | |
1617 | minfo ("(%s)", w->section_name); | |
075d7359 | 1618 | else |
0cacbcbe ILT |
1619 | minfo ("(*)"); |
1620 | ||
075d7359 | 1621 | print_nl (); |
2fa0b342 | 1622 | |
0cacbcbe | 1623 | print_statement_list (w->children.head, os); |
2fa0b342 | 1624 | } |
309c8153 ILT |
1625 | |
1626 | /* Print a group statement. */ | |
1627 | ||
1628 | static void | |
1629 | print_group (s, os) | |
1630 | lang_group_statement_type *s; | |
1631 | lang_output_section_statement_type *os; | |
1632 | { | |
1633 | fprintf (config.map_file, "START GROUP\n"); | |
708f7fbc | 1634 | print_statement_list (s->children.head, os); |
309c8153 ILT |
1635 | fprintf (config.map_file, "END GROUP\n"); |
1636 | } | |
1637 | ||
708f7fbc ILT |
1638 | /* Print the list of statements in S. |
1639 | This can be called for any statement type. */ | |
1640 | ||
2fa0b342 | 1641 | static void |
708f7fbc | 1642 | print_statement_list (s, os) |
0cacbcbe ILT |
1643 | lang_statement_union_type *s; |
1644 | lang_output_section_statement_type *os; | |
2fa0b342 | 1645 | { |
0cacbcbe | 1646 | while (s != NULL) |
c611e285 | 1647 | { |
708f7fbc | 1648 | print_statement (s, os); |
075d7359 | 1649 | s = s->next; |
2fa0b342 | 1650 | } |
2fa0b342 DHW |
1651 | } |
1652 | ||
708f7fbc ILT |
1653 | /* Print the first statement in statement list S. |
1654 | This can be called for any statement type. */ | |
1655 | ||
1656 | static void | |
1657 | print_statement (s, os) | |
0cacbcbe ILT |
1658 | lang_statement_union_type *s; |
1659 | lang_output_section_statement_type *os; | |
708f7fbc ILT |
1660 | { |
1661 | switch (s->header.type) | |
1662 | { | |
0cacbcbe ILT |
1663 | default: |
1664 | fprintf (config.map_file, "Fail with %d\n", s->header.type); | |
1665 | FAIL (); | |
1666 | break; | |
708f7fbc | 1667 | case lang_constructors_statement_enum: |
0cacbcbe ILT |
1668 | if (constructor_list.head != NULL) |
1669 | { | |
1670 | minfo (" CONSTRUCTORS\n"); | |
1671 | print_statement_list (constructor_list.head, os); | |
1672 | } | |
708f7fbc ILT |
1673 | break; |
1674 | case lang_wild_statement_enum: | |
1675 | print_wild_statement (&s->wild_statement, os); | |
1676 | break; | |
708f7fbc | 1677 | case lang_address_statement_enum: |
0cacbcbe | 1678 | print_address_statement (&s->address_statement); |
708f7fbc ILT |
1679 | break; |
1680 | case lang_object_symbols_statement_enum: | |
0cacbcbe | 1681 | minfo (" CREATE_OBJECT_SYMBOLS\n"); |
708f7fbc ILT |
1682 | break; |
1683 | case lang_fill_statement_enum: | |
1684 | print_fill_statement (&s->fill_statement); | |
1685 | break; | |
1686 | case lang_data_statement_enum: | |
1687 | print_data_statement (&s->data_statement); | |
1688 | break; | |
1689 | case lang_reloc_statement_enum: | |
1690 | print_reloc_statement (&s->reloc_statement); | |
1691 | break; | |
1692 | case lang_input_section_enum: | |
1693 | print_input_section (&s->input_section); | |
1694 | break; | |
1695 | case lang_padding_statement_enum: | |
1696 | print_padding_statement (&s->padding_statement); | |
1697 | break; | |
1698 | case lang_output_section_statement_enum: | |
1699 | print_output_section_statement (&s->output_section_statement); | |
1700 | break; | |
1701 | case lang_assignment_statement_enum: | |
0cacbcbe | 1702 | print_assignment (&s->assignment_statement, os); |
708f7fbc ILT |
1703 | break; |
1704 | case lang_target_statement_enum: | |
1705 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
1706 | break; | |
1707 | case lang_output_statement_enum: | |
0cacbcbe ILT |
1708 | minfo ("OUTPUT(%s", s->output_statement.name); |
1709 | if (output_target != NULL) | |
1710 | minfo (" %s", output_target); | |
1711 | minfo (")\n"); | |
708f7fbc ILT |
1712 | break; |
1713 | case lang_input_statement_enum: | |
1714 | print_input_statement (&s->input_statement); | |
1715 | break; | |
1716 | case lang_group_statement_enum: | |
1717 | print_group (&s->group_statement, os); | |
1718 | break; | |
1719 | case lang_afile_asection_pair_statement_enum: | |
1720 | FAIL (); | |
1721 | break; | |
1722 | } | |
1723 | } | |
1724 | ||
2fa0b342 | 1725 | static void |
8ddef552 | 1726 | print_statements () |
2fa0b342 | 1727 | { |
0cacbcbe | 1728 | print_statement_list (statement_list.head, abs_output_section); |
2fa0b342 DHW |
1729 | } |
1730 | ||
708f7fbc ILT |
1731 | /* Print the first N statements in statement list S to STDERR. |
1732 | If N == 0, nothing is printed. | |
1733 | If N < 0, the entire list is printed. | |
1734 | Intended to be called from GDB. */ | |
1735 | ||
1736 | void | |
1737 | dprint_statement (s, n) | |
1738 | lang_statement_union_type * s; | |
1739 | int n; | |
1740 | { | |
1741 | FILE *map_save = config.map_file; | |
1742 | ||
1743 | config.map_file = stderr; | |
1744 | ||
1745 | if (n < 0) | |
1746 | print_statement_list (s, abs_output_section); | |
1747 | else | |
1748 | { | |
1749 | while (--n >= 0) | |
1750 | { | |
1751 | print_statement (s, abs_output_section); | |
1752 | s = s->next; | |
1753 | } | |
1754 | } | |
1755 | ||
1756 | config.map_file = map_save; | |
1757 | } | |
1758 | ||
2fa0b342 | 1759 | static bfd_vma |
9f629407 ILT |
1760 | insert_pad (this_ptr, fill, power, output_section_statement, dot) |
1761 | lang_statement_union_type ** this_ptr; | |
1762 | fill_type fill; | |
1763 | unsigned int power; | |
1764 | asection * output_section_statement; | |
1765 | bfd_vma dot; | |
075d7359 SC |
1766 | { |
1767 | /* Align this section first to the | |
2fa0b342 DHW |
1768 | input sections requirement, then |
1769 | to the output section's requirement. | |
075d7359 | 1770 | If this alignment is > than any seen before, |
2fa0b342 DHW |
1771 | then record it too. Perform the alignment by |
1772 | inserting a magic 'padding' statement. | |
1773 | */ | |
1774 | ||
075d7359 | 1775 | unsigned int alignment_needed = align_power (dot, power) - dot; |
2fa0b342 | 1776 | |
075d7359 | 1777 | if (alignment_needed != 0) |
2fa0b342 | 1778 | { |
075d7359 | 1779 | lang_statement_union_type *new = |
1d169acc ILT |
1780 | ((lang_statement_union_type *) |
1781 | stat_alloc (sizeof (lang_padding_statement_type))); | |
075d7359 | 1782 | |
2fa0b342 DHW |
1783 | /* Link into existing chain */ |
1784 | new->header.next = *this_ptr; | |
1785 | *this_ptr = new; | |
1786 | new->header.type = lang_padding_statement_enum; | |
1787 | new->padding_statement.output_section = output_section_statement; | |
1788 | new->padding_statement.output_offset = | |
1789 | dot - output_section_statement->vma; | |
1790 | new->padding_statement.fill = fill; | |
1791 | new->padding_statement.size = alignment_needed; | |
1792 | } | |
1793 | ||
1794 | ||
1795 | /* Remember the most restrictive alignment */ | |
075d7359 SC |
1796 | if (power > output_section_statement->alignment_power) |
1797 | { | |
1798 | output_section_statement->alignment_power = power; | |
1799 | } | |
c611e285 | 1800 | output_section_statement->_raw_size += alignment_needed; |
2fa0b342 DHW |
1801 | return alignment_needed + dot; |
1802 | ||
1803 | } | |
1804 | ||
1418c83b | 1805 | /* Work out how much this section will move the dot point */ |
075d7359 | 1806 | static bfd_vma |
9f629407 ILT |
1807 | size_input_section (this_ptr, output_section_statement, fill, dot, relax) |
1808 | lang_statement_union_type ** this_ptr; | |
1809 | lang_output_section_statement_type * output_section_statement; | |
c477527c | 1810 | fill_type fill; |
9f629407 ILT |
1811 | bfd_vma dot; |
1812 | boolean relax; | |
2fa0b342 DHW |
1813 | { |
1814 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
1815 | asection *i = is->section; | |
2fa0b342 | 1816 | |
075d7359 SC |
1817 | if (is->ifile->just_syms_flag == false) |
1818 | { | |
e20873a7 JG |
1819 | if (output_section_statement->subsection_alignment != -1) |
1820 | i->alignment_power = | |
1821 | output_section_statement->subsection_alignment; | |
1822 | ||
075d7359 SC |
1823 | dot = insert_pad (this_ptr, fill, i->alignment_power, |
1824 | output_section_statement->bfd_section, dot); | |
1825 | ||
075d7359 | 1826 | /* Remember where in the output section this input section goes */ |
ac004870 | 1827 | |
075d7359 SC |
1828 | i->output_offset = dot - output_section_statement->bfd_section->vma; |
1829 | ||
ae475b39 SC |
1830 | /* Mark how big the output section must be to contain this now |
1831 | */ | |
f078dc7c ILT |
1832 | if (i->_cooked_size != 0) |
1833 | dot += i->_cooked_size; | |
ae475b39 | 1834 | else |
f078dc7c | 1835 | dot += i->_raw_size; |
ae475b39 | 1836 | output_section_statement->bfd_section->_raw_size = dot - output_section_statement->bfd_section->vma; |
075d7359 | 1837 | } |
ac004870 | 1838 | else |
075d7359 SC |
1839 | { |
1840 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
1841 | } | |
2fa0b342 | 1842 | |
075d7359 | 1843 | return dot; |
2fa0b342 DHW |
1844 | } |
1845 | ||
193c5f93 ILT |
1846 | /* This variable indicates whether bfd_relax_section should be called |
1847 | again. */ | |
1848 | ||
1849 | static boolean relax_again; | |
1850 | ||
1851 | /* Set the sizes for all the output sections. */ | |
c611e285 | 1852 | |
a62494c4 | 1853 | bfd_vma |
9f629407 ILT |
1854 | lang_size_sections (s, output_section_statement, prev, fill, dot, relax) |
1855 | lang_statement_union_type * s; | |
1856 | lang_output_section_statement_type * output_section_statement; | |
1857 | lang_statement_union_type ** prev; | |
c477527c | 1858 | fill_type fill; |
9f629407 ILT |
1859 | bfd_vma dot; |
1860 | boolean relax; | |
c611e285 SC |
1861 | { |
1862 | /* Size up the sections from their constituent parts */ | |
075d7359 | 1863 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
ae475b39 SC |
1864 | { |
1865 | switch (s->header.type) | |
075d7359 | 1866 | { |
c611e285 | 1867 | |
ae475b39 SC |
1868 | case lang_output_section_statement_enum: |
1869 | { | |
1870 | bfd_vma after; | |
1871 | lang_output_section_statement_type *os = &s->output_section_statement; | |
1872 | ||
f9d3d71a ILT |
1873 | if (os->bfd_section == NULL) |
1874 | { | |
1875 | /* This section was never actually created. */ | |
1876 | break; | |
1877 | } | |
1878 | ||
27f7237e ILT |
1879 | /* If this is a COFF shared library section, use the size and |
1880 | address from the input section. FIXME: This is COFF | |
1881 | specific; it would be cleaner if there were some other way | |
1882 | to do this, but nothing simple comes to mind. */ | |
1883 | if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
1884 | { | |
1885 | asection *input; | |
1886 | ||
1887 | if (os->children.head == NULL | |
1888 | || os->children.head->next != NULL | |
1889 | || os->children.head->header.type != lang_input_section_enum) | |
1890 | einfo ("%P%X: Internal error on COFF shared library section %s", | |
1891 | os->name); | |
1892 | ||
1893 | input = os->children.head->input_section.section; | |
1894 | bfd_set_section_vma (os->bfd_section->owner, | |
1895 | os->bfd_section, | |
1896 | bfd_section_vma (input->owner, input)); | |
1897 | os->bfd_section->_raw_size = input->_raw_size; | |
1898 | break; | |
1899 | } | |
e9b63852 | 1900 | |
686739e2 | 1901 | if (bfd_is_abs_section (os->bfd_section)) |
ae475b39 SC |
1902 | { |
1903 | /* No matter what happens, an abs section starts at zero */ | |
686739e2 | 1904 | ASSERT (os->bfd_section->vma == 0); |
ae475b39 SC |
1905 | } |
1906 | else | |
1907 | { | |
1908 | if (os->addr_tree == (etree_type *) NULL) | |
1909 | { | |
1910 | /* No address specified for this section, get one | |
1911 | from the region specification | |
1912 | */ | |
1913 | if (os->region == (lang_memory_region_type *) NULL) | |
1914 | { | |
1915 | os->region = lang_memory_region_lookup ("*default*"); | |
1916 | } | |
1917 | dot = os->region->current; | |
feaa9c4b ILT |
1918 | if (os->section_alignment == -1) |
1919 | dot = align_power (dot, os->bfd_section->alignment_power); | |
ae475b39 SC |
1920 | } |
1921 | else | |
1922 | { | |
1923 | etree_value_type r; | |
1924 | ||
1925 | r = exp_fold_tree (os->addr_tree, | |
1926 | abs_output_section, | |
1927 | lang_allocating_phase_enum, | |
1928 | dot, &dot); | |
1929 | if (r.valid == false) | |
1930 | { | |
1931 | einfo ("%F%S: non constant address expression for section %s\n", | |
1932 | os->name); | |
1933 | } | |
1934 | dot = r.value; | |
1935 | } | |
1936 | /* The section starts here */ | |
1937 | /* First, align to what the section needs */ | |
1938 | ||
a62494c4 JL |
1939 | if (os->section_alignment != -1) |
1940 | dot = align_power (dot, os->section_alignment); | |
ae475b39 | 1941 | |
ae475b39 | 1942 | bfd_set_section_vma (0, os->bfd_section, dot); |
9fce28ed | 1943 | |
686739e2 ILT |
1944 | os->bfd_section->output_offset = 0; |
1945 | } | |
ae475b39 SC |
1946 | |
1947 | (void) lang_size_sections (os->children.head, os, &os->children.head, | |
1948 | os->fill, dot, relax); | |
1949 | /* Ignore the size of the input sections, use the vma and size to */ | |
1950 | /* align against */ | |
1951 | ||
8ddef552 | 1952 | after = ALIGN_N (os->bfd_section->vma + |
97fbbaca JL |
1953 | os->bfd_section->_raw_size, |
1954 | /* The coercion here is important, see ld.h. */ | |
1955 | (bfd_vma) os->block_value); | |
ae475b39 | 1956 | |
686739e2 ILT |
1957 | if (bfd_is_abs_section (os->bfd_section)) |
1958 | ASSERT (after == os->bfd_section->vma); | |
1959 | else | |
1960 | os->bfd_section->_raw_size = after - os->bfd_section->vma; | |
ae475b39 SC |
1961 | dot = os->bfd_section->vma + os->bfd_section->_raw_size; |
1962 | os->processed = true; | |
1963 | ||
1964 | /* Replace into region ? */ | |
686739e2 | 1965 | if (os->region != (lang_memory_region_type *) NULL) |
e802f0be DE |
1966 | { |
1967 | os->region->current = dot; | |
1968 | /* Make sure this isn't silly. */ | |
09328690 ILT |
1969 | if (os->region->current < os->region->origin |
1970 | || (os->region->current - os->region->origin | |
1971 | > os->region->length)) | |
e802f0be DE |
1972 | { |
1973 | if (os->addr_tree != (etree_type *) NULL) | |
1974 | { | |
1975 | einfo ("%X%P: address 0x%v of %B section %s is not within region %s\n", | |
1976 | os->region->current, | |
1977 | os->bfd_section->owner, | |
1978 | os->bfd_section->name, | |
1979 | os->region->name); | |
1980 | } | |
1981 | else | |
1982 | { | |
1983 | einfo ("%X%P: region %s is full (%B section %s)\n", | |
1984 | os->region->name, | |
1985 | os->bfd_section->owner, | |
1986 | os->bfd_section->name); | |
1987 | } | |
1988 | /* Reset the region pointer. */ | |
1989 | os->region->current = os->region->origin; | |
1990 | } | |
1991 | } | |
ae475b39 | 1992 | } |
e802f0be | 1993 | break; |
9d1fe8a4 | 1994 | |
ae475b39 SC |
1995 | case lang_constructors_statement_enum: |
1996 | dot = lang_size_sections (constructor_list.head, | |
1997 | output_section_statement, | |
1998 | &s->wild_statement.children.head, | |
1999 | fill, | |
2000 | dot, relax); | |
2001 | break; | |
9d1fe8a4 | 2002 | |
ae475b39 SC |
2003 | case lang_data_statement_enum: |
2004 | { | |
2005 | unsigned int size = 0; | |
2006 | ||
2007 | s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma; | |
2008 | s->data_statement.output_section = | |
2009 | output_section_statement->bfd_section; | |
2010 | ||
2011 | switch (s->data_statement.type) | |
2012 | { | |
c477527c ILT |
2013 | case QUAD: |
2014 | size = QUAD_SIZE; | |
2015 | break; | |
ae475b39 SC |
2016 | case LONG: |
2017 | size = LONG_SIZE; | |
2018 | break; | |
2019 | case SHORT: | |
2020 | size = SHORT_SIZE; | |
2021 | break; | |
2022 | case BYTE: | |
2023 | size = BYTE_SIZE; | |
2024 | break; | |
2025 | ||
2026 | } | |
2027 | dot += size; | |
2028 | output_section_statement->bfd_section->_raw_size += size; | |
36ea6198 ILT |
2029 | /* The output section gets contents, and then we inspect for |
2030 | any flags set in the input script which override any ALLOC */ | |
943fbd5b | 2031 | output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS; |
36ea6198 ILT |
2032 | if (!(output_section_statement->flags & SEC_NEVER_LOAD)) { |
2033 | output_section_statement->bfd_section->flags |= SEC_ALLOC | SEC_LOAD; | |
2034 | } | |
ae475b39 SC |
2035 | } |
2036 | break; | |
c611e285 | 2037 | |
4fdbafb2 ILT |
2038 | case lang_reloc_statement_enum: |
2039 | { | |
2040 | int size; | |
2041 | ||
2042 | s->reloc_statement.output_vma = | |
2043 | dot - output_section_statement->bfd_section->vma; | |
2044 | s->reloc_statement.output_section = | |
2045 | output_section_statement->bfd_section; | |
2046 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
2047 | dot += size; | |
2048 | output_section_statement->bfd_section->_raw_size += size; | |
2049 | } | |
2050 | break; | |
2051 | ||
ae475b39 | 2052 | case lang_wild_statement_enum: |
c611e285 | 2053 | |
ae475b39 SC |
2054 | dot = lang_size_sections (s->wild_statement.children.head, |
2055 | output_section_statement, | |
2056 | &s->wild_statement.children.head, | |
c611e285 | 2057 | |
ae475b39 | 2058 | fill, dot, relax); |
c611e285 | 2059 | |
ae475b39 | 2060 | break; |
c611e285 | 2061 | |
ae475b39 | 2062 | case lang_object_symbols_statement_enum: |
c477527c ILT |
2063 | link_info.create_object_symbols_section = |
2064 | output_section_statement->bfd_section; | |
ae475b39 SC |
2065 | break; |
2066 | case lang_output_statement_enum: | |
2067 | case lang_target_statement_enum: | |
2068 | break; | |
2069 | case lang_input_section_enum: | |
ae475b39 | 2070 | { |
c477527c ILT |
2071 | asection *i; |
2072 | ||
193c5f93 ILT |
2073 | i = (*prev)->input_section.section; |
2074 | if (! relax) | |
6799c638 ILT |
2075 | { |
2076 | if (i->_cooked_size == 0) | |
2077 | i->_cooked_size = i->_raw_size; | |
2078 | } | |
193c5f93 | 2079 | else |
755f42fe | 2080 | { |
193c5f93 | 2081 | boolean again; |
075d7359 | 2082 | |
193c5f93 ILT |
2083 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) |
2084 | einfo ("%P%F: can't relax section: %E\n"); | |
2085 | if (again) | |
2086 | relax_again = true; | |
2087 | } | |
2088 | dot = size_input_section (prev, | |
2089 | output_section_statement, | |
2090 | output_section_statement->fill, | |
2091 | dot, relax); | |
ae475b39 | 2092 | } |
ae475b39 SC |
2093 | break; |
2094 | case lang_input_statement_enum: | |
2095 | break; | |
2096 | case lang_fill_statement_enum: | |
2097 | s->fill_statement.output_section = output_section_statement->bfd_section; | |
075d7359 | 2098 | |
ae475b39 SC |
2099 | fill = s->fill_statement.fill; |
2100 | break; | |
2101 | case lang_assignment_statement_enum: | |
2102 | { | |
2103 | bfd_vma newdot = dot; | |
2104 | ||
2105 | exp_fold_tree (s->assignment_statement.exp, | |
2106 | output_section_statement, | |
2107 | lang_allocating_phase_enum, | |
2108 | dot, | |
2109 | &newdot); | |
2110 | ||
2111 | if (newdot != dot && !relax) | |
27f7237e ILT |
2112 | { |
2113 | /* The assignment changed dot. Insert a pad. */ | |
2114 | if (output_section_statement == abs_output_section) | |
2115 | { | |
2116 | /* If we don't have an output section, then just adjust | |
2117 | the default memory address. */ | |
2118 | lang_memory_region_lookup ("*default*")->current = newdot; | |
2119 | } | |
2120 | else | |
2121 | { | |
2122 | lang_statement_union_type *new = | |
2123 | ((lang_statement_union_type *) | |
2124 | stat_alloc (sizeof (lang_padding_statement_type))); | |
2125 | ||
2126 | /* Link into existing chain */ | |
2127 | new->header.next = *prev; | |
2128 | *prev = new; | |
2129 | new->header.type = lang_padding_statement_enum; | |
2130 | new->padding_statement.output_section = | |
2131 | output_section_statement->bfd_section; | |
2132 | new->padding_statement.output_offset = | |
2133 | dot - output_section_statement->bfd_section->vma; | |
2134 | new->padding_statement.fill = fill; | |
2135 | new->padding_statement.size = newdot - dot; | |
2136 | output_section_statement->bfd_section->_raw_size += | |
2137 | new->padding_statement.size; | |
2138 | } | |
2139 | ||
2140 | dot = newdot; | |
2141 | } | |
ae475b39 | 2142 | } |
27f7237e | 2143 | break; |
9d87af56 ILT |
2144 | |
2145 | case lang_padding_statement_enum: | |
2146 | /* If we are relaxing, and this is not the first pass, some | |
2147 | padding statements may have been inserted during previous | |
2148 | passes. We may have to move the padding statement to a new | |
2149 | location if dot has a different value at this point in this | |
2150 | pass than it did at this point in the previous pass. */ | |
2151 | s->padding_statement.output_offset = | |
2152 | dot - output_section_statement->bfd_section->vma; | |
2153 | dot += s->padding_statement.size; | |
708f7fbc ILT |
2154 | output_section_statement->bfd_section->_raw_size += |
2155 | s->padding_statement.size; | |
9d87af56 ILT |
2156 | break; |
2157 | ||
309c8153 ILT |
2158 | case lang_group_statement_enum: |
2159 | dot = lang_size_sections (s->group_statement.children.head, | |
2160 | output_section_statement, | |
2161 | &s->group_statement.children.head, | |
2162 | fill, dot, relax); | |
2163 | break; | |
2164 | ||
ae475b39 SC |
2165 | default: |
2166 | FAIL (); | |
2167 | break; | |
9d87af56 | 2168 | |
ae475b39 | 2169 | /* This can only get here when relaxing is turned on */ |
075d7359 | 2170 | |
ae475b39 SC |
2171 | case lang_address_statement_enum: |
2172 | break; | |
075d7359 | 2173 | } |
ae475b39 SC |
2174 | prev = &s->header.next; |
2175 | } | |
c611e285 SC |
2176 | return dot; |
2177 | } | |
9d1fe8a4 | 2178 | |
309c8153 | 2179 | bfd_vma |
9f629407 ILT |
2180 | lang_do_assignments (s, output_section_statement, fill, dot) |
2181 | lang_statement_union_type * s; | |
2182 | lang_output_section_statement_type * output_section_statement; | |
c477527c | 2183 | fill_type fill; |
9f629407 | 2184 | bfd_vma dot; |
2fa0b342 | 2185 | { |
075d7359 | 2186 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
2fa0b342 | 2187 | { |
075d7359 | 2188 | switch (s->header.type) |
2fa0b342 | 2189 | { |
075d7359 SC |
2190 | case lang_constructors_statement_enum: |
2191 | dot = lang_do_assignments (constructor_list.head, | |
2192 | output_section_statement, | |
2193 | fill, | |
2194 | dot); | |
2195 | break; | |
2196 | ||
2197 | case lang_output_section_statement_enum: | |
2198 | { | |
2199 | lang_output_section_statement_type *os = | |
269773c1 | 2200 | &(s->output_section_statement); |
2fa0b342 | 2201 | |
269773c1 ILT |
2202 | if (os->bfd_section != NULL) |
2203 | { | |
2204 | dot = os->bfd_section->vma; | |
2205 | (void) lang_do_assignments (os->children.head, os, | |
2206 | os->fill, dot); | |
2207 | dot = os->bfd_section->vma + os->bfd_section->_raw_size; | |
2208 | } | |
0b3499f6 ILT |
2209 | if (os->load_base) |
2210 | { | |
467a0380 SC |
2211 | /* If nothing has been placed into the output section then |
2212 | it won't have a bfd_section. */ | |
2213 | if (os->bfd_section) | |
2214 | { | |
2215 | os->bfd_section->lma | |
2216 | = exp_get_abs_int(os->load_base, 0,"load base", lang_final_phase_enum); | |
2217 | } | |
0b3499f6 | 2218 | } |
075d7359 SC |
2219 | } |
2220 | break; | |
2221 | case lang_wild_statement_enum: | |
2fa0b342 | 2222 | |
075d7359 SC |
2223 | dot = lang_do_assignments (s->wild_statement.children.head, |
2224 | output_section_statement, | |
2225 | fill, dot); | |
2fa0b342 | 2226 | |
075d7359 SC |
2227 | break; |
2228 | ||
2229 | case lang_object_symbols_statement_enum: | |
2230 | case lang_output_statement_enum: | |
2231 | case lang_target_statement_enum: | |
1418c83b | 2232 | #if 0 |
075d7359 | 2233 | case lang_common_statement_enum: |
1418c83b | 2234 | #endif |
2fa0b342 | 2235 | break; |
075d7359 SC |
2236 | case lang_data_statement_enum: |
2237 | { | |
2238 | etree_value_type value; | |
2239 | ||
2240 | value = exp_fold_tree (s->data_statement.exp, | |
2241 | abs_output_section, | |
2242 | lang_final_phase_enum, dot, &dot); | |
2243 | s->data_statement.value = value.value; | |
2244 | if (value.valid == false) | |
ddddcdf0 | 2245 | einfo ("%F%P: invalid data statement\n"); |
075d7359 SC |
2246 | } |
2247 | switch (s->data_statement.type) | |
2248 | { | |
c477527c ILT |
2249 | case QUAD: |
2250 | dot += QUAD_SIZE; | |
2251 | break; | |
075d7359 SC |
2252 | case LONG: |
2253 | dot += LONG_SIZE; | |
2254 | break; | |
2255 | case SHORT: | |
2256 | dot += SHORT_SIZE; | |
2257 | break; | |
2258 | case BYTE: | |
2259 | dot += BYTE_SIZE; | |
2260 | break; | |
2261 | } | |
2fa0b342 | 2262 | break; |
4fdbafb2 ILT |
2263 | |
2264 | case lang_reloc_statement_enum: | |
2265 | { | |
2266 | etree_value_type value; | |
2267 | ||
2268 | value = exp_fold_tree (s->reloc_statement.addend_exp, | |
2269 | abs_output_section, | |
2270 | lang_final_phase_enum, dot, &dot); | |
2271 | s->reloc_statement.addend_value = value.value; | |
2272 | if (value.valid == false) | |
2273 | einfo ("%F%P: invalid reloc statement\n"); | |
2274 | } | |
2275 | dot += bfd_get_reloc_size (s->reloc_statement.howto); | |
2276 | break; | |
2277 | ||
075d7359 SC |
2278 | case lang_input_section_enum: |
2279 | { | |
2280 | asection *in = s->input_section.section; | |
2281 | ||
f078dc7c ILT |
2282 | if (in->_cooked_size != 0) |
2283 | dot += in->_cooked_size; | |
2284 | else | |
2285 | dot += in->_raw_size; | |
075d7359 | 2286 | } |
2fa0b342 | 2287 | break; |
2fa0b342 | 2288 | |
075d7359 SC |
2289 | case lang_input_statement_enum: |
2290 | break; | |
2291 | case lang_fill_statement_enum: | |
2292 | fill = s->fill_statement.fill; | |
2293 | break; | |
2294 | case lang_assignment_statement_enum: | |
2295 | { | |
2296 | exp_fold_tree (s->assignment_statement.exp, | |
2297 | output_section_statement, | |
2298 | lang_final_phase_enum, | |
2299 | dot, | |
2300 | &dot); | |
2301 | } | |
2302 | ||
2303 | break; | |
2304 | case lang_padding_statement_enum: | |
2305 | dot += s->padding_statement.size; | |
2306 | break; | |
309c8153 ILT |
2307 | |
2308 | case lang_group_statement_enum: | |
2309 | dot = lang_do_assignments (s->group_statement.children.head, | |
2310 | output_section_statement, | |
2311 | fill, dot); | |
2312 | ||
2313 | break; | |
2314 | ||
075d7359 SC |
2315 | default: |
2316 | FAIL (); | |
2317 | break; | |
2318 | case lang_address_statement_enum: | |
2319 | break; | |
2320 | } | |
2fa0b342 DHW |
2321 | |
2322 | } | |
2323 | return dot; | |
2324 | } | |
2325 | ||
1d169acc ILT |
2326 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the |
2327 | operator .startof. (section_name), it produces an undefined symbol | |
2328 | .startof.section_name. Similarly, when it sees | |
2329 | .sizeof. (section_name), it produces an undefined symbol | |
2330 | .sizeof.section_name. For all the output sections, we look for | |
2331 | such symbols, and set them to the correct value. */ | |
2332 | ||
2333 | static void | |
2334 | lang_set_startof () | |
2335 | { | |
2336 | asection *s; | |
2337 | ||
307585f1 ILT |
2338 | if (link_info.relocateable) |
2339 | return; | |
2340 | ||
1d169acc ILT |
2341 | for (s = output_bfd->sections; s != NULL; s = s->next) |
2342 | { | |
2343 | const char *secname; | |
2344 | char *buf; | |
2345 | struct bfd_link_hash_entry *h; | |
2346 | ||
2347 | secname = bfd_get_section_name (output_bfd, s); | |
2348 | buf = xmalloc (10 + strlen (secname)); | |
2349 | ||
2350 | sprintf (buf, ".startof.%s", secname); | |
2351 | h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true); | |
2352 | if (h != NULL && h->type == bfd_link_hash_undefined) | |
2353 | { | |
2354 | h->type = bfd_link_hash_defined; | |
2355 | h->u.def.value = bfd_get_section_vma (output_bfd, s); | |
2356 | h->u.def.section = bfd_abs_section_ptr; | |
2357 | } | |
2358 | ||
2359 | sprintf (buf, ".sizeof.%s", secname); | |
2360 | h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true); | |
2361 | if (h != NULL && h->type == bfd_link_hash_undefined) | |
2362 | { | |
2363 | h->type = bfd_link_hash_defined; | |
2364 | if (s->_cooked_size != 0) | |
2365 | h->u.def.value = s->_cooked_size; | |
2366 | else | |
2367 | h->u.def.value = s->_raw_size; | |
2368 | h->u.def.section = bfd_abs_section_ptr; | |
2369 | } | |
2370 | ||
2371 | free (buf); | |
2372 | } | |
2373 | } | |
2374 | ||
2fa0b342 | 2375 | static void |
8ddef552 | 2376 | lang_finish () |
2fa0b342 | 2377 | { |
c477527c | 2378 | struct bfd_link_hash_entry *h; |
cc38364d KR |
2379 | boolean warn; |
2380 | ||
2381 | if (link_info.relocateable || link_info.shared) | |
2382 | warn = false; | |
2383 | else | |
2384 | warn = true; | |
075d7359 | 2385 | |
c477527c ILT |
2386 | if (entry_symbol == (char *) NULL) |
2387 | { | |
2388 | /* No entry has been specified. Look for start, but don't warn | |
2389 | if we don't find it. */ | |
2390 | entry_symbol = "start"; | |
2391 | warn = false; | |
2392 | } | |
2fa0b342 | 2393 | |
c477527c ILT |
2394 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol, false, false, true); |
2395 | if (h != (struct bfd_link_hash_entry *) NULL | |
8ed88239 | 2396 | && (h->type == bfd_link_hash_defined |
061e65f8 ILT |
2397 | || h->type == bfd_link_hash_defweak) |
2398 | && h->u.def.section->output_section != NULL) | |
075d7359 | 2399 | { |
c477527c | 2400 | bfd_vma val; |
075d7359 | 2401 | |
c477527c ILT |
2402 | val = (h->u.def.value |
2403 | + bfd_get_section_vma (output_bfd, | |
2404 | h->u.def.section->output_section) | |
2405 | + h->u.def.section->output_offset); | |
2406 | if (! bfd_set_start_address (output_bfd, val)) | |
2407 | einfo ("%P%F:%s: can't set start address\n", entry_symbol); | |
075d7359 | 2408 | } |
c477527c | 2409 | else |
22a78f0d | 2410 | { |
c477527c ILT |
2411 | asection *ts; |
2412 | ||
2413 | /* Can't find the entry symbol. Use the first address in the | |
2414 | text section. */ | |
2415 | ts = bfd_get_section_by_name (output_bfd, ".text"); | |
2416 | if (ts != (asection *) NULL) | |
2417 | { | |
2418 | if (warn) | |
2419 | einfo ("%P: warning: cannot find entry symbol %s; defaulting to %V\n", | |
2420 | entry_symbol, bfd_get_section_vma (output_bfd, ts)); | |
2421 | if (! bfd_set_start_address (output_bfd, | |
2422 | bfd_get_section_vma (output_bfd, ts))) | |
2423 | einfo ("%P%F: can't set start address\n"); | |
2424 | } | |
2425 | else | |
2426 | { | |
2427 | if (warn) | |
2428 | einfo ("%P: warning: cannot find entry symbol %s; not setting start address\n", | |
2429 | entry_symbol); | |
2430 | } | |
22a78f0d | 2431 | } |
2fa0b342 DHW |
2432 | } |
2433 | ||
0b3499f6 | 2434 | /* Check that the architecture of all the input files is compatible |
f400bbbb ILT |
2435 | with the output file. Also call the backend to let it do any |
2436 | other checking that is needed. */ | |
0b3499f6 | 2437 | |
2fa0b342 | 2438 | static void |
8ddef552 | 2439 | lang_check () |
2fa0b342 DHW |
2440 | { |
2441 | lang_statement_union_type *file; | |
075d7359 | 2442 | bfd *input_bfd; |
075d7359 | 2443 | CONST bfd_arch_info_type *compatible; |
7bc4a0d7 | 2444 | |
2fa0b342 | 2445 | for (file = file_chain.head; |
075d7359 SC |
2446 | file != (lang_statement_union_type *) NULL; |
2447 | file = file->input_statement.next) | |
2448 | { | |
075d7359 | 2449 | input_bfd = file->input_statement.the_bfd; |
075d7359 SC |
2450 | compatible = bfd_arch_get_compatible (input_bfd, |
2451 | output_bfd); | |
0b3499f6 ILT |
2452 | if (compatible == NULL) |
2453 | einfo ("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n", | |
2454 | bfd_printable_name (input_bfd), input_bfd, | |
2455 | bfd_printable_name (output_bfd)); | |
f400bbbb ILT |
2456 | |
2457 | else | |
2458 | bfd_merge_private_bfd_data (input_bfd, output_bfd); | |
075d7359 SC |
2459 | } |
2460 | } | |
2fa0b342 | 2461 | |
c477527c ILT |
2462 | /* Look through all the global common symbols and attach them to the |
2463 | correct section. The -sort-common command line switch may be used | |
2464 | to roughly sort the entries by size. */ | |
2fa0b342 DHW |
2465 | |
2466 | static void | |
8ddef552 | 2467 | lang_common () |
2fa0b342 | 2468 | { |
c477527c ILT |
2469 | if (link_info.relocateable |
2470 | && ! command_line.force_common_definition) | |
2471 | return; | |
075d7359 | 2472 | |
c477527c ILT |
2473 | if (! config.sort_common) |
2474 | bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL); | |
2475 | else | |
075d7359 | 2476 | { |
fa9dea80 | 2477 | int power; |
1418c83b | 2478 | |
fa9dea80 | 2479 | for (power = 4; power >= 0; power--) |
c477527c ILT |
2480 | bfd_link_hash_traverse (link_info.hash, lang_one_common, |
2481 | (PTR) &power); | |
2482 | } | |
2483 | } | |
29f33467 | 2484 | |
c477527c | 2485 | /* Place one common symbol in the correct section. */ |
075d7359 | 2486 | |
c477527c ILT |
2487 | static boolean |
2488 | lang_one_common (h, info) | |
2489 | struct bfd_link_hash_entry *h; | |
2490 | PTR info; | |
2491 | { | |
2492 | unsigned int power_of_two; | |
2493 | bfd_vma size; | |
c477527c | 2494 | asection *section; |
075d7359 | 2495 | |
c477527c ILT |
2496 | if (h->type != bfd_link_hash_common) |
2497 | return true; | |
075d7359 | 2498 | |
c477527c | 2499 | size = h->u.c.size; |
f400bbbb | 2500 | power_of_two = h->u.c.p->alignment_power; |
36c6e8c3 ILT |
2501 | |
2502 | if (config.sort_common | |
f054ce20 | 2503 | && power_of_two < (unsigned int) *(int *) info) |
c477527c | 2504 | return true; |
075d7359 | 2505 | |
f400bbbb | 2506 | section = h->u.c.p->section; |
075d7359 | 2507 | |
c477527c | 2508 | /* Increase the size of the section. */ |
36c6e8c3 ILT |
2509 | section->_raw_size = ALIGN_N (section->_raw_size, |
2510 | (bfd_size_type) (1 << power_of_two)); | |
075d7359 | 2511 | |
c477527c ILT |
2512 | /* Adjust the alignment if necessary. */ |
2513 | if (power_of_two > section->alignment_power) | |
2514 | section->alignment_power = power_of_two; | |
075d7359 | 2515 | |
c477527c ILT |
2516 | /* Change the symbol from common to defined. */ |
2517 | h->type = bfd_link_hash_defined; | |
2518 | h->u.def.section = section; | |
2519 | h->u.def.value = section->_raw_size; | |
097879bc | 2520 | |
c477527c ILT |
2521 | /* Increase the size of the section. */ |
2522 | section->_raw_size += size; | |
1418c83b | 2523 | |
809391bd ILT |
2524 | /* Make sure the section is allocated in memory. */ |
2525 | section->flags |= SEC_ALLOC; | |
2526 | ||
b495c314 | 2527 | if (config.map_file != NULL) |
efa6c497 ILT |
2528 | { |
2529 | static boolean header_printed; | |
2530 | int len; | |
2531 | char *name; | |
2532 | char buf[50]; | |
2533 | ||
2534 | if (! header_printed) | |
2535 | { | |
2536 | minfo ("\nAllocating common symbols\n"); | |
2537 | minfo ("Common symbol size file\n\n"); | |
2538 | header_printed = true; | |
2539 | } | |
2540 | ||
2541 | name = demangle (h->root.string); | |
2542 | minfo ("%s", name); | |
2543 | len = strlen (name); | |
2544 | free (name); | |
2545 | ||
2546 | if (len >= 19) | |
2547 | { | |
2548 | print_nl (); | |
2549 | len = 0; | |
2550 | } | |
2551 | while (len < 20) | |
2552 | { | |
2553 | print_space (); | |
2554 | ++len; | |
2555 | } | |
2556 | ||
2557 | minfo ("0x"); | |
2558 | if (size <= 0xffffffff) | |
2559 | sprintf (buf, "%lx", (unsigned long) size); | |
2560 | else | |
2561 | sprintf_vma (buf, size); | |
2562 | minfo ("%s", buf); | |
2563 | len = strlen (buf); | |
2564 | ||
2565 | while (len < 16) | |
2566 | { | |
2567 | print_space (); | |
2568 | ++len; | |
2569 | } | |
2570 | ||
2571 | minfo ("%B\n", section->owner); | |
2572 | } | |
1418c83b | 2573 | |
c477527c | 2574 | return true; |
2fa0b342 DHW |
2575 | } |
2576 | ||
2577 | /* | |
075d7359 | 2578 | run through the input files and ensure that every input |
2fa0b342 DHW |
2579 | section has somewhere to go. If one is found without |
2580 | a destination then create an input request and place it | |
2581 | into the statement tree. | |
2582 | */ | |
2583 | ||
075d7359 | 2584 | static void |
8ddef552 | 2585 | lang_place_orphans () |
2fa0b342 DHW |
2586 | { |
2587 | lang_input_statement_type *file; | |
1418c83b | 2588 | |
075d7359 SC |
2589 | for (file = (lang_input_statement_type *) file_chain.head; |
2590 | file != (lang_input_statement_type *) NULL; | |
2591 | file = (lang_input_statement_type *) file->next) | |
2592 | { | |
2593 | asection *s; | |
2594 | ||
2595 | for (s = file->the_bfd->sections; | |
2596 | s != (asection *) NULL; | |
2597 | s = s->next) | |
2598 | { | |
2599 | if (s->output_section == (asection *) NULL) | |
2600 | { | |
2601 | /* This section of the file is not attatched, root | |
2602 | around for a sensible place for it to go */ | |
2603 | ||
e802f0be DE |
2604 | if (file->just_syms_flag) |
2605 | { | |
2606 | /* We are only retrieving symbol values from this | |
2607 | file. We want the symbols to act as though the | |
2608 | values in the file are absolute. */ | |
2609 | s->output_section = bfd_abs_section_ptr; | |
2610 | s->output_offset = s->vma; | |
2611 | } | |
2612 | else if (file->common_section == s) | |
075d7359 SC |
2613 | { |
2614 | /* This is a lonely common section which must | |
2615 | have come from an archive. We attatch to the | |
2616 | section with the wildcard */ | |
c477527c ILT |
2617 | if (! link_info.relocateable |
2618 | && ! command_line.force_common_definition) | |
075d7359 SC |
2619 | { |
2620 | if (default_common_section == | |
2621 | (lang_output_section_statement_type *) NULL) | |
2622 | { | |
a4aeaacf | 2623 | info_msg ("%P: no [COMMON] command, defaulting to .bss\n"); |
075d7359 SC |
2624 | |
2625 | default_common_section = | |
2626 | lang_output_section_statement_lookup (".bss"); | |
2627 | ||
2628 | } | |
2629 | wild_doit (&default_common_section->children, s, | |
2630 | default_common_section, file); | |
2631 | } | |
2632 | } | |
0b3499f6 ILT |
2633 | else if (ldemul_place_orphan (file, s)) |
2634 | ; | |
075d7359 SC |
2635 | else |
2636 | { | |
2637 | lang_output_section_statement_type *os = | |
2638 | lang_output_section_statement_lookup (s->name); | |
2fa0b342 | 2639 | |
075d7359 SC |
2640 | wild_doit (&os->children, s, os, file); |
2641 | } | |
2642 | } | |
2fa0b342 | 2643 | } |
2fa0b342 | 2644 | } |
2fa0b342 DHW |
2645 | } |
2646 | ||
2647 | ||
2fa0b342 | 2648 | void |
8ddef552 DM |
2649 | lang_set_flags (ptr, flags) |
2650 | int *ptr; | |
2651 | CONST char *flags; | |
2fa0b342 | 2652 | { |
075d7359 SC |
2653 | boolean state = false; |
2654 | ||
2655 | *ptr = 0; | |
2fa0b342 | 2656 | while (*flags) |
075d7359 SC |
2657 | { |
2658 | if (*flags == '!') | |
2659 | { | |
2660 | state = false; | |
2661 | flags++; | |
2662 | } | |
2663 | else | |
2664 | state = true; | |
2665 | switch (*flags) | |
2666 | { | |
2667 | case 'R': | |
2668 | /* ptr->flag_read = state; */ | |
2669 | break; | |
2670 | case 'W': | |
2671 | /* ptr->flag_write = state; */ | |
2672 | break; | |
2673 | case 'X': | |
2674 | /* ptr->flag_executable= state;*/ | |
2675 | break; | |
2676 | case 'L': | |
2677 | case 'I': | |
2678 | /* ptr->flag_loadable= state;*/ | |
2679 | break; | |
2680 | default: | |
ddddcdf0 | 2681 | einfo ("%P%F: invalid syntax in flags\n"); |
075d7359 SC |
2682 | break; |
2683 | } | |
dc4726c2 SC |
2684 | flags++; |
2685 | } | |
2fa0b342 DHW |
2686 | } |
2687 | ||
a4d2a48e ILT |
2688 | /* Call a function on each input file. This function will be called |
2689 | on an archive, but not on the elements. */ | |
2690 | ||
2691 | void | |
2692 | lang_for_each_input_file (func) | |
2693 | void (*func) PARAMS ((lang_input_statement_type *)); | |
2694 | { | |
2695 | lang_input_statement_type *f; | |
2696 | ||
2697 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
2698 | f != NULL; | |
2699 | f = (lang_input_statement_type *) f->next_real_file) | |
2700 | func (f); | |
2701 | } | |
2fa0b342 | 2702 | |
a4d2a48e ILT |
2703 | /* Call a function on each file. The function will be called on all |
2704 | the elements of an archive which are included in the link, but will | |
2705 | not be called on the archive file itself. */ | |
2fa0b342 DHW |
2706 | |
2707 | void | |
8ddef552 DM |
2708 | lang_for_each_file (func) |
2709 | void (*func) PARAMS ((lang_input_statement_type *)); | |
2fa0b342 DHW |
2710 | { |
2711 | lang_input_statement_type *f; | |
075d7359 SC |
2712 | |
2713 | for (f = (lang_input_statement_type *) file_chain.head; | |
2714 | f != (lang_input_statement_type *) NULL; | |
2715 | f = (lang_input_statement_type *) f->next) | |
2716 | { | |
2717 | func (f); | |
2718 | } | |
2fa0b342 DHW |
2719 | } |
2720 | ||
9f629407 ILT |
2721 | #if 0 |
2722 | ||
2723 | /* Not used. */ | |
2fa0b342 DHW |
2724 | |
2725 | void | |
8ddef552 DM |
2726 | lang_for_each_input_section (func) |
2727 | void (*func) PARAMS ((bfd * ab, asection * as)); | |
2fa0b342 DHW |
2728 | { |
2729 | lang_input_statement_type *f; | |
075d7359 SC |
2730 | |
2731 | for (f = (lang_input_statement_type *) file_chain.head; | |
2732 | f != (lang_input_statement_type *) NULL; | |
2733 | f = (lang_input_statement_type *) f->next) | |
2fa0b342 DHW |
2734 | { |
2735 | asection *s; | |
075d7359 | 2736 | |
2fa0b342 | 2737 | for (s = f->the_bfd->sections; |
075d7359 SC |
2738 | s != (asection *) NULL; |
2739 | s = s->next) | |
2740 | { | |
2741 | func (f->the_bfd, s); | |
2742 | } | |
2fa0b342 DHW |
2743 | } |
2744 | } | |
2745 | ||
9f629407 | 2746 | #endif |
2fa0b342 | 2747 | |
075d7359 | 2748 | void |
8ddef552 DM |
2749 | ldlang_add_file (entry) |
2750 | lang_input_statement_type * entry; | |
2fa0b342 | 2751 | { |
5e6cd559 ILT |
2752 | bfd **pp; |
2753 | ||
075d7359 SC |
2754 | lang_statement_append (&file_chain, |
2755 | (lang_statement_union_type *) entry, | |
2756 | &entry->next); | |
c477527c ILT |
2757 | |
2758 | /* The BFD linker needs to have a list of all input BFDs involved in | |
2759 | a link. */ | |
2760 | ASSERT (entry->the_bfd->link_next == (bfd *) NULL); | |
2761 | ASSERT (entry->the_bfd != output_bfd); | |
5e6cd559 ILT |
2762 | for (pp = &link_info.input_bfds; |
2763 | *pp != (bfd *) NULL; | |
2764 | pp = &(*pp)->link_next) | |
2765 | ; | |
2766 | *pp = entry->the_bfd; | |
c477527c | 2767 | entry->the_bfd->usrdata = (PTR) entry; |
fc1dfb71 | 2768 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
23595ba5 ILT |
2769 | |
2770 | /* Look through the sections and check for any which should not be | |
2771 | included in the link. We need to do this now, so that we can | |
2772 | notice when the backend linker tries to report multiple | |
2773 | definition errors for symbols which are in sections we aren't | |
2774 | going to link. FIXME: It might be better to entirely ignore | |
2775 | symbols which are defined in sections which are going to be | |
2776 | discarded. This would require modifying the backend linker for | |
2777 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
2778 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
2779 | ||
2780 | bfd_map_over_sections (entry->the_bfd, section_already_linked, (PTR) NULL); | |
2fa0b342 DHW |
2781 | } |
2782 | ||
2fa0b342 | 2783 | void |
2c6635a4 | 2784 | lang_add_output (name, from_script) |
8ddef552 | 2785 | CONST char *name; |
2c6635a4 | 2786 | int from_script; |
2fa0b342 | 2787 | { |
2c6635a4 ILT |
2788 | /* Make -o on command line override OUTPUT in script. */ |
2789 | if (had_output_filename == false || !from_script) | |
2790 | { | |
2791 | output_filename = name; | |
2792 | had_output_filename = true; | |
2793 | } | |
2fa0b342 DHW |
2794 | } |
2795 | ||
2796 | ||
2797 | static lang_output_section_statement_type *current_section; | |
2798 | ||
f054ce20 ILT |
2799 | static int |
2800 | topower (x) | |
9f629407 | 2801 | int x; |
e20873a7 | 2802 | { |
f054ce20 | 2803 | unsigned int i = 1; |
e20873a7 | 2804 | int l; |
f054ce20 ILT |
2805 | |
2806 | if (x < 0) | |
2807 | return -1; | |
2808 | ||
e20873a7 | 2809 | for (l = 0; l < 32; l++) |
f054ce20 ILT |
2810 | { |
2811 | if (i >= (unsigned int) x) | |
2812 | return l; | |
2813 | i <<= 1; | |
2814 | } | |
2815 | ||
29f33467 | 2816 | return 0; |
e20873a7 | 2817 | } |
2fa0b342 | 2818 | void |
8ddef552 DM |
2819 | lang_enter_output_section_statement (output_section_statement_name, |
2820 | address_exp, flags, block_value, | |
9f629407 | 2821 | align, subalign, ebase) |
fcf276c4 | 2822 | const char *output_section_statement_name; |
8ddef552 DM |
2823 | etree_type * address_exp; |
2824 | int flags; | |
2825 | bfd_vma block_value; | |
2826 | etree_type *align; | |
2827 | etree_type *subalign; | |
9f629407 | 2828 | etree_type *ebase; |
2fa0b342 DHW |
2829 | { |
2830 | lang_output_section_statement_type *os; | |
075d7359 SC |
2831 | |
2832 | current_section = | |
e20873a7 | 2833 | os = |
075d7359 SC |
2834 | lang_output_section_statement_lookup (output_section_statement_name); |
2835 | ||
2836 | ||
2fa0b342 | 2837 | |
2fa0b342 DHW |
2838 | /* Add this statement to tree */ |
2839 | /* add_statement(lang_output_section_statement_enum, | |
2840 | output_section_statement);*/ | |
2841 | /* Make next things chain into subchain of this */ | |
2842 | ||
2843 | if (os->addr_tree == | |
075d7359 | 2844 | (etree_type *) NULL) |
e20873a7 JG |
2845 | { |
2846 | os->addr_tree = | |
2847 | address_exp; | |
2848 | } | |
7bc4a0d7 | 2849 | os->flags = flags; |
ae475b39 SC |
2850 | if (flags & SEC_NEVER_LOAD) |
2851 | os->loadable = 0; | |
2852 | else | |
2853 | os->loadable = 1; | |
29f33467 | 2854 | os->block_value = block_value ? block_value : 1; |
075d7359 | 2855 | stat_ptr = &os->children; |
2fa0b342 | 2856 | |
e20873a7 JG |
2857 | os->subsection_alignment = topower( |
2858 | exp_get_value_int(subalign, -1, | |
2859 | "subsection alignment", | |
2860 | 0)); | |
2861 | os->section_alignment = topower( | |
2862 | exp_get_value_int(align, -1, | |
2863 | "section alignment", 0)); | |
9fce28ed | 2864 | |
9f629407 | 2865 | os->load_base = ebase; |
2fa0b342 DHW |
2866 | } |
2867 | ||
9fce28ed | 2868 | |
075d7359 | 2869 | void |
8ddef552 | 2870 | lang_final () |
2fa0b342 | 2871 | { |
2c6635a4 ILT |
2872 | lang_output_statement_type *new = |
2873 | new_stat (lang_output_statement, stat_ptr); | |
2fa0b342 | 2874 | |
2c6635a4 | 2875 | new->name = output_filename; |
075d7359 | 2876 | } |
2fa0b342 | 2877 | |
c611e285 SC |
2878 | /* Reset the current counters in the regions */ |
2879 | static void | |
8ddef552 | 2880 | reset_memory_regions () |
c611e285 | 2881 | { |
075d7359 SC |
2882 | lang_memory_region_type *p = lang_memory_region_list; |
2883 | ||
c611e285 | 2884 | for (p = lang_memory_region_list; |
075d7359 SC |
2885 | p != (lang_memory_region_type *) NULL; |
2886 | p = p->next) | |
2887 | { | |
8ddef552 | 2888 | p->old_length = (bfd_size_type) (p->current - p->origin); |
075d7359 SC |
2889 | p->current = p->origin; |
2890 | } | |
c611e285 | 2891 | } |
2fa0b342 | 2892 | |
2fa0b342 | 2893 | void |
8ddef552 | 2894 | lang_process () |
075d7359 | 2895 | { |
075d7359 | 2896 | lang_reasonable_defaults (); |
1418c83b SC |
2897 | current_target = default_target; |
2898 | ||
075d7359 | 2899 | lang_for_each_statement (ldlang_open_output); /* Open the output file */ |
1418c83b | 2900 | |
97fbbaca JL |
2901 | ldemul_create_output_section_statements (); |
2902 | ||
1418c83b | 2903 | /* Add to the hash table all undefineds on the command line */ |
075d7359 | 2904 | lang_place_undefineds (); |
1418c83b SC |
2905 | |
2906 | /* Create a bfd for each input file */ | |
2907 | current_target = default_target; | |
309c8153 | 2908 | open_input_bfds (statement_list.head, false); |
1418c83b | 2909 | |
cc38364d KR |
2910 | ldemul_after_open (); |
2911 | ||
c477527c ILT |
2912 | /* Build all sets based on the information gathered from the input |
2913 | files. */ | |
2914 | ldctor_build_sets (); | |
2915 | ||
4fdbafb2 ILT |
2916 | /* Size up the common data */ |
2917 | lang_common (); | |
2918 | ||
1418c83b | 2919 | /* Run through the contours of the script and attatch input sections |
075d7359 | 2920 | to the correct output sections |
1418c83b | 2921 | */ |
075d7359 SC |
2922 | map_input_to_output_sections (statement_list.head, (char *) NULL, |
2923 | (lang_output_section_statement_type *) NULL); | |
1418c83b | 2924 | |
81016051 | 2925 | |
1418c83b | 2926 | /* Find any sections not attatched explicitly and handle them */ |
075d7359 | 2927 | lang_place_orphans (); |
1418c83b | 2928 | |
075d7359 | 2929 | ldemul_before_allocation (); |
1418c83b | 2930 | |
061e65f8 ILT |
2931 | /* We must record the program headers before we try to fix the |
2932 | section positions, since they will affect SIZEOF_HEADERS. */ | |
2933 | lang_record_phdrs (); | |
2934 | ||
c611e285 | 2935 | /* Now run around and relax if we can */ |
075d7359 | 2936 | if (command_line.relax) |
c611e285 | 2937 | { |
97fbbaca JL |
2938 | /* First time round is a trial run to get the 'worst case' |
2939 | addresses of the objects if there was no relaxing. */ | |
ae475b39 | 2940 | lang_size_sections (statement_list.head, |
193c5f93 | 2941 | abs_output_section, |
ae475b39 | 2942 | &(statement_list.head), 0, (bfd_vma) 0, false); |
c611e285 | 2943 | |
193c5f93 ILT |
2944 | /* Keep relaxing until bfd_relax_section gives up. */ |
2945 | do | |
2946 | { | |
1d169acc ILT |
2947 | reset_memory_regions (); |
2948 | ||
193c5f93 | 2949 | relax_again = false; |
ae475b39 | 2950 | |
193c5f93 ILT |
2951 | /* Do all the assignments with our current guesses as to |
2952 | section sizes. */ | |
2953 | lang_do_assignments (statement_list.head, | |
2954 | abs_output_section, | |
2955 | (fill_type) 0, (bfd_vma) 0); | |
ae475b39 | 2956 | |
193c5f93 ILT |
2957 | /* Perform another relax pass - this time we know where the |
2958 | globals are, so can make better guess. */ | |
2959 | lang_size_sections (statement_list.head, | |
2960 | abs_output_section, | |
2961 | &(statement_list.head), 0, (bfd_vma) 0, true); | |
2962 | } | |
2963 | while (relax_again); | |
ae475b39 | 2964 | } |
ae475b39 SC |
2965 | else |
2966 | { | |
97fbbaca | 2967 | /* Size up the sections. */ |
ae475b39 SC |
2968 | lang_size_sections (statement_list.head, |
2969 | abs_output_section, | |
2970 | &(statement_list.head), 0, (bfd_vma) 0, false); | |
075d7359 | 2971 | } |
c611e285 | 2972 | |
1418c83b | 2973 | /* See if anything special should be done now we know how big |
97fbbaca | 2974 | everything is. */ |
075d7359 | 2975 | ldemul_after_allocation (); |
1418c83b | 2976 | |
1d169acc ILT |
2977 | /* Fix any .startof. or .sizeof. symbols. */ |
2978 | lang_set_startof (); | |
2979 | ||
1418c83b SC |
2980 | /* Do all the assignments, now that we know the final restingplaces |
2981 | of all the symbols */ | |
2982 | ||
075d7359 SC |
2983 | lang_do_assignments (statement_list.head, |
2984 | abs_output_section, | |
c477527c | 2985 | (fill_type) 0, (bfd_vma) 0); |
ffc50032 | 2986 | |
1418c83b SC |
2987 | /* Make sure that we're not mixing architectures */ |
2988 | ||
075d7359 | 2989 | lang_check (); |
1418c83b | 2990 | |
1418c83b | 2991 | /* Final stuffs */ |
97fbbaca JL |
2992 | |
2993 | ldemul_finish (); | |
075d7359 | 2994 | lang_finish (); |
2fa0b342 DHW |
2995 | } |
2996 | ||
2fa0b342 | 2997 | /* EXPORTED TO YACC */ |
1418c83b | 2998 | |
2fa0b342 | 2999 | void |
8ddef552 DM |
3000 | lang_add_wild (section_name, filename) |
3001 | CONST char *CONST section_name; | |
3002 | CONST char *CONST filename; | |
1418c83b | 3003 | { |
075d7359 SC |
3004 | lang_wild_statement_type *new = new_stat (lang_wild_statement, |
3005 | stat_ptr); | |
1418c83b | 3006 | |
075d7359 SC |
3007 | if (section_name != (char *) NULL && strcmp (section_name, "COMMON") == 0) |
3008 | { | |
3009 | placed_commons = true; | |
3010 | } | |
3011 | if (filename != (char *) NULL) | |
3012 | { | |
3013 | lang_has_input_file = true; | |
3014 | } | |
1418c83b SC |
3015 | new->section_name = section_name; |
3016 | new->filename = filename; | |
075d7359 | 3017 | lang_list_init (&new->children); |
1418c83b | 3018 | } |
075d7359 | 3019 | |
1418c83b | 3020 | void |
8ddef552 DM |
3021 | lang_section_start (name, address) |
3022 | CONST char *name; | |
3023 | etree_type * address; | |
2fa0b342 | 3024 | { |
075d7359 SC |
3025 | lang_address_statement_type *ad = new_stat (lang_address_statement, stat_ptr); |
3026 | ||
2fa0b342 DHW |
3027 | ad->section_name = name; |
3028 | ad->address = address; | |
3029 | } | |
1418c83b | 3030 | |
60e8a534 ILT |
3031 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called |
3032 | because of a -e argument on the command line, or zero if this is | |
3033 | called by ENTRY in a linker script. Command line arguments take | |
3034 | precedence. */ | |
3035 | ||
3f38a017 SC |
3036 | /* WINDOWS_NT. When an entry point has been specified, we will also force |
3037 | this symbol to be defined by calling ldlang_add_undef (equivalent to | |
3038 | having switch -u entry_name on the command line). The reason we do | |
3039 | this is so that the user doesn't have to because they would have to use | |
3040 | the -u switch if they were specifying an entry point other than | |
3041 | _mainCRTStartup. Specifically, if creating a windows application, entry | |
3042 | point _WinMainCRTStartup must be specified. | |
3043 | What I have found for non console applications (entry not _mainCRTStartup) | |
3044 | is that the .obj that contains mainCRTStartup is brought in since it is | |
3045 | the first encountered in libc.lib and it has other symbols in it which will | |
3046 | be pulled in by the link process. To avoid this, adding -u with the entry | |
3047 | point name specified forces the correct .obj to be used. We can avoid | |
3048 | making the user do this by always adding the entry point name as an | |
3049 | undefined symbol. */ | |
3050 | ||
075d7359 | 3051 | void |
60e8a534 | 3052 | lang_add_entry (name, cmdline) |
8ddef552 | 3053 | CONST char *name; |
f054ce20 | 3054 | boolean cmdline; |
2fa0b342 | 3055 | { |
60e8a534 ILT |
3056 | if (entry_symbol == NULL |
3057 | || cmdline | |
f054ce20 | 3058 | || ! entry_from_cmdline) |
60e8a534 ILT |
3059 | { |
3060 | entry_symbol = name; | |
f054ce20 | 3061 | entry_from_cmdline = cmdline; |
60e8a534 | 3062 | } |
943fbd5b | 3063 | #if 0 |
3f38a017 SC |
3064 | /* don't do this yet. It seems to work (the executables run), but the |
3065 | image created is very different from what I was getting before indicating | |
3066 | that something else is being pulled in. When everything else is working, | |
3067 | then try to put this back in to see if it will do the right thing for | |
3068 | other more complicated applications */ | |
3069 | ldlang_add_undef (name); | |
3070 | #endif | |
2fa0b342 DHW |
3071 | } |
3072 | ||
3073 | void | |
8ddef552 DM |
3074 | lang_add_target (name) |
3075 | CONST char *name; | |
2fa0b342 | 3076 | { |
075d7359 SC |
3077 | lang_target_statement_type *new = new_stat (lang_target_statement, |
3078 | stat_ptr); | |
3079 | ||
2fa0b342 DHW |
3080 | new->target = name; |
3081 | ||
3082 | } | |
2fa0b342 | 3083 | |
2fa0b342 | 3084 | void |
8ddef552 DM |
3085 | lang_add_map (name) |
3086 | CONST char *name; | |
2fa0b342 | 3087 | { |
075d7359 SC |
3088 | while (*name) |
3089 | { | |
3090 | switch (*name) | |
3091 | { | |
3092 | case 'F': | |
3093 | map_option_f = true; | |
3094 | break; | |
3095 | } | |
3096 | name++; | |
2fa0b342 | 3097 | } |
2fa0b342 DHW |
3098 | } |
3099 | ||
075d7359 | 3100 | void |
8ddef552 DM |
3101 | lang_add_fill (exp) |
3102 | int exp; | |
2fa0b342 | 3103 | { |
075d7359 SC |
3104 | lang_fill_statement_type *new = new_stat (lang_fill_statement, |
3105 | stat_ptr); | |
3106 | ||
2fa0b342 DHW |
3107 | new->fill = exp; |
3108 | } | |
3109 | ||
075d7359 | 3110 | void |
8ddef552 DM |
3111 | lang_add_data (type, exp) |
3112 | int type; | |
3113 | union etree_union *exp; | |
2fa0b342 DHW |
3114 | { |
3115 | ||
075d7359 | 3116 | lang_data_statement_type *new = new_stat (lang_data_statement, |
2fa0b342 | 3117 | stat_ptr); |
075d7359 SC |
3118 | |
3119 | new->exp = exp; | |
3120 | new->type = type; | |
2fa0b342 DHW |
3121 | |
3122 | } | |
075d7359 | 3123 | |
4fdbafb2 ILT |
3124 | /* Create a new reloc statement. RELOC is the BFD relocation type to |
3125 | generate. HOWTO is the corresponding howto structure (we could | |
3126 | look this up, but the caller has already done so). SECTION is the | |
3127 | section to generate a reloc against, or NAME is the name of the | |
3128 | symbol to generate a reloc against. Exactly one of SECTION and | |
3129 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
3130 | ||
3131 | void | |
3132 | lang_add_reloc (reloc, howto, section, name, addend) | |
3133 | bfd_reloc_code_real_type reloc; | |
cc38364d | 3134 | reloc_howto_type *howto; |
4fdbafb2 ILT |
3135 | asection *section; |
3136 | const char *name; | |
3137 | union etree_union *addend; | |
3138 | { | |
3139 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
3140 | ||
3141 | p->reloc = reloc; | |
3142 | p->howto = howto; | |
3143 | p->section = section; | |
3144 | p->name = name; | |
3145 | p->addend_exp = addend; | |
3146 | ||
3147 | p->addend_value = 0; | |
3148 | p->output_section = NULL; | |
3149 | p->output_vma = 0; | |
3150 | } | |
3151 | ||
2fa0b342 | 3152 | void |
8ddef552 DM |
3153 | lang_add_assignment (exp) |
3154 | etree_type * exp; | |
2fa0b342 | 3155 | { |
075d7359 SC |
3156 | lang_assignment_statement_type *new = new_stat (lang_assignment_statement, |
3157 | stat_ptr); | |
3158 | ||
2fa0b342 DHW |
3159 | new->exp = exp; |
3160 | } | |
3161 | ||
3162 | void | |
8ddef552 DM |
3163 | lang_add_attribute (attribute) |
3164 | enum statement_enum attribute; | |
2fa0b342 | 3165 | { |
075d7359 | 3166 | new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr); |
2fa0b342 DHW |
3167 | } |
3168 | ||
075d7359 | 3169 | void |
8ddef552 DM |
3170 | lang_startup (name) |
3171 | CONST char *name; | |
2fa0b342 | 3172 | { |
075d7359 SC |
3173 | if (startup_file != (char *) NULL) |
3174 | { | |
ddddcdf0 | 3175 | einfo ("%P%Fmultiple STARTUP files\n"); |
075d7359 | 3176 | } |
2fa0b342 DHW |
3177 | first_file->filename = name; |
3178 | first_file->local_sym_name = name; | |
193c5f93 | 3179 | first_file->real = true; |
2fa0b342 | 3180 | |
075d7359 | 3181 | startup_file = name; |
2fa0b342 | 3182 | } |
075d7359 SC |
3183 | |
3184 | void | |
8ddef552 DM |
3185 | lang_float (maybe) |
3186 | boolean maybe; | |
2fa0b342 DHW |
3187 | { |
3188 | lang_float_flag = maybe; | |
3189 | } | |
3190 | ||
075d7359 | 3191 | void |
8ddef552 DM |
3192 | lang_leave_output_section_statement (fill, memspec) |
3193 | bfd_vma fill; | |
3194 | CONST char *memspec; | |
2fa0b342 DHW |
3195 | { |
3196 | current_section->fill = fill; | |
075d7359 | 3197 | current_section->region = lang_memory_region_lookup (memspec); |
2fa0b342 DHW |
3198 | stat_ptr = &statement_list; |
3199 | } | |
075d7359 | 3200 | |
9f32f7c2 SC |
3201 | /* |
3202 | Create an absolute symbol with the given name with the value of the | |
3203 | address of first byte of the section named. | |
2fa0b342 | 3204 | |
9f32f7c2 SC |
3205 | If the symbol already exists, then do nothing. |
3206 | */ | |
8cb5eb31 | 3207 | void |
c477527c ILT |
3208 | lang_abs_symbol_at_beginning_of (secname, name) |
3209 | const char *secname; | |
3210 | const char *name; | |
075d7359 | 3211 | { |
c477527c ILT |
3212 | struct bfd_link_hash_entry *h; |
3213 | ||
3214 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); | |
3215 | if (h == (struct bfd_link_hash_entry *) NULL) | |
3216 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); | |
3217 | ||
3218 | if (h->type == bfd_link_hash_new | |
3219 | || h->type == bfd_link_hash_undefined) | |
075d7359 | 3220 | { |
c477527c | 3221 | asection *sec; |
075d7359 | 3222 | |
c477527c ILT |
3223 | h->type = bfd_link_hash_defined; |
3224 | ||
3225 | sec = bfd_get_section_by_name (output_bfd, secname); | |
3226 | if (sec == (asection *) NULL) | |
3227 | h->u.def.value = 0; | |
075d7359 | 3228 | else |
c477527c ILT |
3229 | h->u.def.value = bfd_get_section_vma (output_bfd, sec); |
3230 | ||
686739e2 | 3231 | h->u.def.section = bfd_abs_section_ptr; |
9f32f7c2 | 3232 | } |
8cb5eb31 SC |
3233 | } |
3234 | ||
9f32f7c2 SC |
3235 | /* |
3236 | Create an absolute symbol with the given name with the value of the | |
3237 | address of the first byte after the end of the section named. | |
3238 | ||
3239 | If the symbol already exists, then do nothing. | |
3240 | */ | |
2fa0b342 | 3241 | void |
c477527c ILT |
3242 | lang_abs_symbol_at_end_of (secname, name) |
3243 | const char *secname; | |
3244 | const char *name; | |
075d7359 | 3245 | { |
c477527c ILT |
3246 | struct bfd_link_hash_entry *h; |
3247 | ||
3248 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); | |
3249 | if (h == (struct bfd_link_hash_entry *) NULL) | |
3250 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); | |
3251 | ||
3252 | if (h->type == bfd_link_hash_new | |
3253 | || h->type == bfd_link_hash_undefined) | |
075d7359 | 3254 | { |
c477527c | 3255 | asection *sec; |
075d7359 | 3256 | |
c477527c | 3257 | h->type = bfd_link_hash_defined; |
075d7359 | 3258 | |
c477527c ILT |
3259 | sec = bfd_get_section_by_name (output_bfd, secname); |
3260 | if (sec == (asection *) NULL) | |
3261 | h->u.def.value = 0; | |
075d7359 | 3262 | else |
c477527c ILT |
3263 | h->u.def.value = (bfd_get_section_vma (output_bfd, sec) |
3264 | + bfd_section_size (output_bfd, sec)); | |
3265 | ||
686739e2 | 3266 | h->u.def.section = bfd_abs_section_ptr; |
9f32f7c2 | 3267 | } |
2fa0b342 DHW |
3268 | } |
3269 | ||
075d7359 | 3270 | void |
8ddef552 DM |
3271 | lang_statement_append (list, element, field) |
3272 | lang_statement_list_type * list; | |
3273 | lang_statement_union_type * element; | |
3274 | lang_statement_union_type ** field; | |
2fa0b342 DHW |
3275 | { |
3276 | *(list->tail) = element; | |
3277 | list->tail = field; | |
3278 | } | |
3279 | ||
173a0c3d | 3280 | /* Set the output format type. -oformat overrides scripts. */ |
6a02a973 | 3281 | |
097879bc | 3282 | void |
6a02a973 ILT |
3283 | lang_add_output_format (format, big, little, from_script) |
3284 | const char *format; | |
3285 | const char *big; | |
3286 | const char *little; | |
173a0c3d | 3287 | int from_script; |
097879bc | 3288 | { |
2c6635a4 | 3289 | if (output_target == NULL || !from_script) |
6a02a973 ILT |
3290 | { |
3291 | if (command_line.endian == ENDIAN_BIG | |
3292 | && big != NULL) | |
3293 | format = big; | |
3294 | else if (command_line.endian == ENDIAN_LITTLE | |
3295 | && little != NULL) | |
3296 | format = little; | |
3297 | ||
3298 | output_target = format; | |
3299 | } | |
097879bc | 3300 | } |
309c8153 ILT |
3301 | |
3302 | /* Enter a group. This creates a new lang_group_statement, and sets | |
3303 | stat_ptr to build new statements within the group. */ | |
3304 | ||
3305 | void | |
3306 | lang_enter_group () | |
3307 | { | |
3308 | lang_group_statement_type *g; | |
3309 | ||
3310 | g = new_stat (lang_group_statement, stat_ptr); | |
3311 | lang_list_init (&g->children); | |
3312 | stat_ptr = &g->children; | |
3313 | } | |
3314 | ||
3315 | /* Leave a group. This just resets stat_ptr to start writing to the | |
3316 | regular list of statements again. Note that this will not work if | |
3317 | groups can occur inside anything else which can adjust stat_ptr, | |
3318 | but currently they can't. */ | |
3319 | ||
3320 | void | |
3321 | lang_leave_group () | |
3322 | { | |
3323 | stat_ptr = &statement_list; | |
3324 | } | |
061e65f8 ILT |
3325 | |
3326 | /* Add a new program header. This is called for each entry in a PHDRS | |
3327 | command in a linker script. */ | |
3328 | ||
3329 | void | |
708f7fbc | 3330 | lang_new_phdr (name, type, filehdr, phdrs, at, flags) |
061e65f8 ILT |
3331 | const char *name; |
3332 | etree_type *type; | |
708f7fbc ILT |
3333 | boolean filehdr; |
3334 | boolean phdrs; | |
061e65f8 | 3335 | etree_type *at; |
708f7fbc | 3336 | etree_type *flags; |
061e65f8 ILT |
3337 | { |
3338 | struct lang_phdr *n, **pp; | |
3339 | ||
3340 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); | |
3341 | n->next = NULL; | |
3342 | n->name = name; | |
3343 | n->type = exp_get_value_int (type, 0, "program header type", | |
3344 | lang_final_phase_enum); | |
708f7fbc ILT |
3345 | n->filehdr = filehdr; |
3346 | n->phdrs = phdrs; | |
061e65f8 | 3347 | n->at = at; |
708f7fbc | 3348 | n->flags = flags; |
061e65f8 ILT |
3349 | |
3350 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
3351 | ; | |
3352 | *pp = n; | |
3353 | } | |
3354 | ||
3355 | /* Record that a section should be placed in a phdr. */ | |
3356 | ||
3357 | void | |
3358 | lang_section_in_phdr (name) | |
3359 | const char *name; | |
3360 | { | |
3361 | struct lang_output_section_phdr_list *n; | |
3362 | ||
3363 | n = ((struct lang_output_section_phdr_list *) | |
3364 | stat_alloc (sizeof (struct lang_output_section_phdr_list))); | |
3365 | n->name = name; | |
3366 | n->used = false; | |
3367 | n->next = current_section->phdrs; | |
3368 | current_section->phdrs = n; | |
3369 | } | |
3370 | ||
3371 | /* Record the program header information in the output BFD. FIXME: We | |
3372 | should not be calling an ELF specific function here. */ | |
3373 | ||
3374 | static void | |
3375 | lang_record_phdrs () | |
3376 | { | |
3377 | unsigned int alc; | |
3378 | asection **secs; | |
3379 | struct lang_output_section_phdr_list *last; | |
3380 | struct lang_phdr *l; | |
3381 | lang_statement_union_type *u; | |
3382 | ||
3383 | alc = 10; | |
3384 | secs = xmalloc (alc * sizeof (asection *)); | |
3385 | last = NULL; | |
3386 | for (l = lang_phdr_list; l != NULL; l = l->next) | |
3387 | { | |
3388 | unsigned int c; | |
708f7fbc | 3389 | flagword flags; |
061e65f8 ILT |
3390 | bfd_vma at; |
3391 | ||
3392 | c = 0; | |
3393 | for (u = lang_output_section_statement.head; | |
3394 | u != NULL; | |
3395 | u = u->output_section_statement.next) | |
3396 | { | |
3397 | lang_output_section_statement_type *os; | |
3398 | struct lang_output_section_phdr_list *pl; | |
3399 | ||
3400 | os = &u->output_section_statement; | |
3401 | ||
708f7fbc | 3402 | pl = os->phdrs; |
061e65f8 ILT |
3403 | if (pl != NULL) |
3404 | last = pl; | |
3405 | else | |
3406 | { | |
3407 | if (! os->loadable | |
3408 | || os->bfd_section == NULL | |
3409 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
3410 | continue; | |
3411 | pl = last; | |
3412 | } | |
3413 | ||
3414 | if (os->bfd_section == NULL) | |
3415 | continue; | |
3416 | ||
3417 | for (; pl != NULL; pl = pl->next) | |
3418 | { | |
3419 | if (strcmp (pl->name, l->name) == 0) | |
3420 | { | |
3421 | if (c >= alc) | |
3422 | { | |
3423 | alc *= 2; | |
3424 | secs = xrealloc (secs, alc * sizeof (asection *)); | |
3425 | } | |
3426 | secs[c] = os->bfd_section; | |
3427 | ++c; | |
3428 | pl->used = true; | |
3429 | } | |
3430 | } | |
3431 | } | |
3432 | ||
708f7fbc ILT |
3433 | if (l->flags == NULL) |
3434 | flags = 0; | |
3435 | else | |
3436 | flags = exp_get_vma (l->flags, 0, "phdr flags", | |
3437 | lang_final_phase_enum); | |
3438 | ||
061e65f8 ILT |
3439 | if (l->at == NULL) |
3440 | at = 0; | |
3441 | else | |
3442 | at = exp_get_vma (l->at, 0, "phdr load address", | |
3443 | lang_final_phase_enum); | |
708f7fbc ILT |
3444 | |
3445 | if (! bfd_record_phdr (output_bfd, l->type, | |
3446 | l->flags == NULL ? false : true, | |
3447 | flags, | |
061e65f8 | 3448 | l->at == NULL ? false : true, |
708f7fbc | 3449 | at, l->filehdr, l->phdrs, c, secs)) |
061e65f8 ILT |
3450 | einfo ("%F%P: bfd_record_phdr failed: %E\n"); |
3451 | } | |
3452 | ||
3453 | free (secs); | |
3454 | ||
3455 | /* Make sure all the phdr assignments succeeded. */ | |
3456 | for (u = lang_output_section_statement.head; | |
3457 | u != NULL; | |
3458 | u = u->output_section_statement.next) | |
3459 | { | |
3460 | struct lang_output_section_phdr_list *pl; | |
3461 | ||
3462 | if (u->output_section_statement.bfd_section == NULL) | |
3463 | continue; | |
3464 | ||
3465 | for (pl = u->output_section_statement.phdrs; | |
3466 | pl != NULL; | |
3467 | pl = pl->next) | |
3468 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
3469 | einfo ("%X%P: section `%s' assigned to non-existent phdr `%s'\n", | |
3470 | u->output_section_statement.name, pl->name); | |
3471 | } | |
3472 | } |