Commit | Line | Data |
---|---|---|
e20873a7 | 1 | /* Linker command language support. |
c5a0d31a | 2 | Copyright (C) 1991, 92, 93, 94, 95, 96, 1997 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 | |
d22ec3b0 ILT |
17 | along with GLD; see the file COPYING. If not, write to the Free |
18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
2fa0b342 | 20 | |
2fa0b342 | 21 | #include "bfd.h" |
075d7359 | 22 | #include "sysdep.h" |
4c2123b6 | 23 | #include "libiberty.h" |
9f19768a | 24 | #include "obstack.h" |
c477527c | 25 | #include "bfdlink.h" |
2fa0b342 DHW |
26 | |
27 | #include "ld.h" | |
fcf276c4 | 28 | #include "ldmain.h" |
7bc4a0d7 | 29 | #include "ldgram.h" |
2fa0b342 | 30 | #include "ldexp.h" |
fcf276c4 | 31 | #include "ldlang.h" |
8c514453 | 32 | #include "ldemul.h" |
2fa0b342 | 33 | #include "ldlex.h" |
3f8d46e7 | 34 | #include "ldmisc.h" |
c611e285 | 35 | #include "ldctor.h" |
fcf276c4 | 36 | #include "ldfile.h" |
86bc0974 | 37 | #include "fnmatch.h" |
b98bd3db | 38 | |
d22ec3b0 ILT |
39 | #include <ctype.h> |
40 | ||
2fa0b342 | 41 | /* FORWARDS */ |
5af8e9d6 KR |
42 | static lang_statement_union_type *new_statement PARAMS ((enum statement_enum, |
43 | size_t, | |
44 | lang_statement_list_type*)); | |
45 | ||
2fa0b342 | 46 | |
d4c02e29 | 47 | /* LOCALS */ |
bfbdc80f | 48 | static struct obstack stat_obstack; |
075d7359 | 49 | |
0b2f8d2e | 50 | #define obstack_chunk_alloc xmalloc |
bfbdc80f | 51 | #define obstack_chunk_free free |
075d7359 | 52 | static CONST char *startup_file; |
d4c02e29 SC |
53 | static lang_statement_list_type input_file_chain; |
54 | static boolean placed_commons = false; | |
55 | static lang_output_section_statement_type *default_common_section; | |
56 | static boolean map_option_f; | |
57 | static bfd_vma print_dot; | |
58 | static lang_input_statement_type *first_file; | |
59 | static lang_statement_list_type lang_output_section_statement; | |
60 | static CONST char *current_target; | |
61 | static CONST char *output_target; | |
d4c02e29 | 62 | static lang_statement_list_type statement_list; |
061e65f8 | 63 | static struct lang_phdr *lang_phdr_list; |
ffc50032 | 64 | |
9f629407 ILT |
65 | static void lang_for_each_statement_worker |
66 | PARAMS ((void (*func) (lang_statement_union_type *), | |
67 | lang_statement_union_type *s)); | |
68 | static lang_input_statement_type *new_afile | |
69 | PARAMS ((const char *name, lang_input_file_enum_type file_type, | |
193c5f93 | 70 | const char *target, boolean add_to_list)); |
9f629407 | 71 | static void init_os PARAMS ((lang_output_section_statement_type *s)); |
86bc0974 | 72 | static void exp_init_os PARAMS ((etree_type *)); |
23595ba5 | 73 | static void section_already_linked PARAMS ((bfd *, asection *, PTR)); |
86bc0974 | 74 | static boolean wildcardp PARAMS ((const char *)); |
9f629407 ILT |
75 | static void wild_section PARAMS ((lang_wild_statement_type *ptr, |
76 | const char *section, | |
77 | lang_input_statement_type *file, | |
78 | lang_output_section_statement_type *output)); | |
193c5f93 | 79 | static lang_input_statement_type *lookup_name PARAMS ((const char *name)); |
6a02a973 ILT |
80 | static void load_symbols PARAMS ((lang_input_statement_type *entry, |
81 | lang_statement_list_type *)); | |
86bc0974 ILT |
82 | static void wild_file PARAMS ((lang_wild_statement_type *, const char *, |
83 | lang_input_statement_type *, | |
84 | lang_output_section_statement_type *)); | |
9f629407 ILT |
85 | static void wild PARAMS ((lang_wild_statement_type *s, |
86 | const char *section, const char *file, | |
87 | const char *target, | |
88 | lang_output_section_statement_type *output)); | |
89 | static bfd *open_output PARAMS ((const char *name)); | |
90 | static void ldlang_open_output PARAMS ((lang_statement_union_type *statement)); | |
309c8153 ILT |
91 | static void open_input_bfds |
92 | PARAMS ((lang_statement_union_type *statement, boolean)); | |
9f629407 ILT |
93 | static void lang_reasonable_defaults PARAMS ((void)); |
94 | static void lang_place_undefineds PARAMS ((void)); | |
9f629407 ILT |
95 | static void map_input_to_output_sections |
96 | PARAMS ((lang_statement_union_type *s, | |
97 | const char *target, | |
98 | lang_output_section_statement_type *output_section_statement)); | |
99 | static void print_output_section_statement | |
100 | PARAMS ((lang_output_section_statement_type *output_section_statement)); | |
101 | static void print_assignment | |
102 | PARAMS ((lang_assignment_statement_type *assignment, | |
103 | lang_output_section_statement_type *output_section)); | |
104 | static void print_input_statement PARAMS ((lang_input_statement_type *statm)); | |
c5a0d31a | 105 | static boolean print_one_symbol PARAMS ((struct bfd_link_hash_entry *, PTR)); |
9f629407 ILT |
106 | static void print_input_section PARAMS ((lang_input_section_type *in)); |
107 | static void print_fill_statement PARAMS ((lang_fill_statement_type *fill)); | |
108 | static void print_data_statement PARAMS ((lang_data_statement_type *data)); | |
0cacbcbe | 109 | static void print_address_statement PARAMS ((lang_address_statement_type *)); |
4fdbafb2 | 110 | static void print_reloc_statement PARAMS ((lang_reloc_statement_type *reloc)); |
9f629407 ILT |
111 | static void print_padding_statement PARAMS ((lang_padding_statement_type *s)); |
112 | static void print_wild_statement | |
113 | PARAMS ((lang_wild_statement_type *w, | |
114 | lang_output_section_statement_type *os)); | |
309c8153 ILT |
115 | static void print_group |
116 | PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *)); | |
9f629407 ILT |
117 | static void print_statement PARAMS ((lang_statement_union_type *s, |
118 | lang_output_section_statement_type *os)); | |
708f7fbc ILT |
119 | static void print_statement_list PARAMS ((lang_statement_union_type *s, |
120 | lang_output_section_statement_type *os)); | |
9f629407 ILT |
121 | static void print_statements PARAMS ((void)); |
122 | static bfd_vma insert_pad PARAMS ((lang_statement_union_type **this_ptr, | |
123 | fill_type fill, unsigned int power, | |
124 | asection *output_section_statement, | |
125 | bfd_vma dot)); | |
126 | static bfd_vma size_input_section | |
127 | PARAMS ((lang_statement_union_type **this_ptr, | |
128 | lang_output_section_statement_type *output_section_statement, | |
c477527c | 129 | fill_type fill, bfd_vma dot, boolean relax)); |
9f629407 | 130 | static void lang_finish PARAMS ((void)); |
d3c324e5 | 131 | static void ignore_bfd_errors PARAMS ((const char *, ...)); |
9f629407 ILT |
132 | static void lang_check PARAMS ((void)); |
133 | static void lang_common PARAMS ((void)); | |
c477527c | 134 | static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR)); |
9f629407 ILT |
135 | static void lang_place_orphans PARAMS ((void)); |
136 | static int topower PARAMS ((int)); | |
1d169acc | 137 | static void lang_set_startof PARAMS ((void)); |
9f629407 | 138 | static void reset_memory_regions PARAMS ((void)); |
061e65f8 | 139 | static void lang_record_phdrs PARAMS ((void)); |
9f629407 | 140 | |
2fa0b342 | 141 | /* EXPORTS */ |
ffc50032 | 142 | lang_output_section_statement_type *abs_output_section; |
d4c02e29 | 143 | lang_statement_list_type *stat_ptr = &statement_list; |
a4d2a48e | 144 | lang_statement_list_type file_chain = { 0 }; |
061e65f8 | 145 | const char *entry_symbol = NULL; |
f054ce20 | 146 | boolean entry_from_cmdline; |
d4c02e29 | 147 | boolean lang_has_input_file = false; |
d4c02e29 SC |
148 | boolean had_output_filename = false; |
149 | boolean lang_float_flag = false; | |
97fbbaca | 150 | boolean delete_output_file_on_failure = false; |
582dd77f | 151 | struct lang_nocrossrefs *nocrossref_list; |
075d7359 | 152 | |
9fce28ed SC |
153 | etree_type *base; /* Relocation base - or null */ |
154 | ||
155 | ||
b897ed67 | 156 | #if defined(__STDC__) || defined(ALMOST_STDC) |
2fa0b342 DHW |
157 | #define cat(a,b) a##b |
158 | #else | |
159 | #define cat(a,b) a/**/b | |
160 | #endif | |
161 | ||
162 | #define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y) | |
163 | ||
164 | #define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma) | |
165 | ||
166 | #define outside_symbol_address(q) ((q)->value + outside_section_address(q->section)) | |
167 | ||
0cacbcbe ILT |
168 | #define SECTION_NAME_MAP_LENGTH (16) |
169 | ||
bfbdc80f | 170 | PTR |
8ddef552 DM |
171 | stat_alloc (size) |
172 | size_t size; | |
bfbdc80f | 173 | { |
075d7359 | 174 | return obstack_alloc (&stat_obstack, size); |
bfbdc80f | 175 | } |
9f629407 | 176 | |
1418c83b SC |
177 | /*---------------------------------------------------------------------- |
178 | lang_for_each_statement walks the parse tree and calls the provided | |
179 | function for each node | |
180 | */ | |
181 | ||
075d7359 | 182 | static void |
8ddef552 | 183 | lang_for_each_statement_worker (func, s) |
c477527c | 184 | void (*func) PARAMS ((lang_statement_union_type *)); |
8ddef552 | 185 | lang_statement_union_type *s; |
1418c83b | 186 | { |
075d7359 SC |
187 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
188 | { | |
189 | func (s); | |
1418c83b | 190 | |
075d7359 SC |
191 | switch (s->header.type) |
192 | { | |
81016051 | 193 | case lang_constructors_statement_enum: |
075d7359 | 194 | lang_for_each_statement_worker (func, constructor_list.head); |
81016051 | 195 | break; |
1418c83b SC |
196 | case lang_output_section_statement_enum: |
197 | lang_for_each_statement_worker | |
075d7359 | 198 | (func, |
1418c83b SC |
199 | s->output_section_statement.children.head); |
200 | break; | |
201 | case lang_wild_statement_enum: | |
202 | lang_for_each_statement_worker | |
075d7359 | 203 | (func, |
1418c83b SC |
204 | s->wild_statement.children.head); |
205 | break; | |
309c8153 ILT |
206 | case lang_group_statement_enum: |
207 | lang_for_each_statement_worker (func, | |
208 | s->group_statement.children.head); | |
209 | break; | |
1418c83b | 210 | case lang_data_statement_enum: |
4fdbafb2 | 211 | case lang_reloc_statement_enum: |
1418c83b SC |
212 | case lang_object_symbols_statement_enum: |
213 | case lang_output_statement_enum: | |
214 | case lang_target_statement_enum: | |
215 | case lang_input_section_enum: | |
216 | case lang_input_statement_enum: | |
1418c83b SC |
217 | case lang_assignment_statement_enum: |
218 | case lang_padding_statement_enum: | |
219 | case lang_address_statement_enum: | |
0cacbcbe | 220 | case lang_fill_statement_enum: |
1418c83b SC |
221 | break; |
222 | default: | |
075d7359 | 223 | FAIL (); |
1418c83b SC |
224 | break; |
225 | } | |
075d7359 | 226 | } |
1418c83b SC |
227 | } |
228 | ||
229 | void | |
8ddef552 | 230 | lang_for_each_statement (func) |
c477527c | 231 | void (*func) PARAMS ((lang_statement_union_type *)); |
1418c83b | 232 | { |
075d7359 SC |
233 | lang_for_each_statement_worker (func, |
234 | statement_list.head); | |
1418c83b | 235 | } |
075d7359 | 236 | |
1418c83b | 237 | /*----------------------------------------------------------------------*/ |
075d7359 | 238 | void |
8ddef552 DM |
239 | lang_list_init (list) |
240 | lang_statement_list_type *list; | |
2fa0b342 | 241 | { |
075d7359 SC |
242 | list->head = (lang_statement_union_type *) NULL; |
243 | list->tail = &list->head; | |
2fa0b342 DHW |
244 | } |
245 | ||
1418c83b | 246 | /*---------------------------------------------------------------------- |
075d7359 | 247 | |
1418c83b SC |
248 | build a new statement node for the parse tree |
249 | ||
250 | */ | |
2fa0b342 DHW |
251 | |
252 | static | |
075d7359 | 253 | lang_statement_union_type * |
8ddef552 DM |
254 | new_statement (type, size, list) |
255 | enum statement_enum type; | |
5af8e9d6 | 256 | size_t size; |
8ddef552 | 257 | lang_statement_list_type * list; |
2fa0b342 DHW |
258 | { |
259 | lang_statement_union_type *new = (lang_statement_union_type *) | |
075d7359 SC |
260 | stat_alloc (size); |
261 | ||
2fa0b342 | 262 | new->header.type = type; |
075d7359 SC |
263 | new->header.next = (lang_statement_union_type *) NULL; |
264 | lang_statement_append (list, new, &new->header.next); | |
2fa0b342 DHW |
265 | return new; |
266 | } | |
267 | ||
1418c83b SC |
268 | /* |
269 | Build a new input file node for the language. There are several ways | |
270 | in which we treat an input file, eg, we only look at symbols, or | |
271 | prefix it with a -l etc. | |
272 | ||
273 | We can be supplied with requests for input files more than once; | |
274 | they may, for example be split over serveral lines like foo.o(.text) | |
275 | foo.o(.data) etc, so when asked for a file we check that we havn't | |
276 | got it already so we don't duplicate the bfd. | |
277 | ||
278 | */ | |
2fa0b342 | 279 | static lang_input_statement_type * |
193c5f93 | 280 | new_afile (name, file_type, target, add_to_list) |
9f629407 ILT |
281 | CONST char *name; |
282 | lang_input_file_enum_type file_type; | |
283 | CONST char *target; | |
193c5f93 | 284 | boolean add_to_list; |
2fa0b342 | 285 | { |
193c5f93 | 286 | lang_input_statement_type *p; |
dc4726c2 | 287 | |
193c5f93 ILT |
288 | if (add_to_list) |
289 | p = new_stat (lang_input_statement, stat_ptr); | |
290 | else | |
291 | { | |
292 | p = ((lang_input_statement_type *) | |
293 | stat_alloc (sizeof (lang_input_statement_type))); | |
294 | p->header.next = NULL; | |
295 | } | |
075d7359 | 296 | |
2fa0b342 DHW |
297 | lang_has_input_file = true; |
298 | p->target = target; | |
075d7359 SC |
299 | switch (file_type) |
300 | { | |
301 | case lang_input_file_is_symbols_only_enum: | |
302 | p->filename = name; | |
303 | p->is_archive = false; | |
304 | p->real = true; | |
305 | p->local_sym_name = name; | |
306 | p->just_syms_flag = true; | |
307 | p->search_dirs_flag = false; | |
308 | break; | |
309 | case lang_input_file_is_fake_enum: | |
310 | p->filename = name; | |
311 | p->is_archive = false; | |
312 | p->real = false; | |
313 | p->local_sym_name = name; | |
314 | p->just_syms_flag = false; | |
315 | p->search_dirs_flag = false; | |
316 | break; | |
317 | case lang_input_file_is_l_enum: | |
318 | p->is_archive = true; | |
319 | p->filename = name; | |
320 | p->real = true; | |
ef76742f | 321 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
075d7359 SC |
322 | p->just_syms_flag = false; |
323 | p->search_dirs_flag = true; | |
324 | break; | |
075d7359 | 325 | case lang_input_file_is_marker_enum: |
193c5f93 ILT |
326 | p->filename = name; |
327 | p->is_archive = false; | |
328 | p->real = false; | |
329 | p->local_sym_name = name; | |
330 | p->just_syms_flag = false; | |
331 | p->search_dirs_flag = true; | |
332 | break; | |
333 | case lang_input_file_is_search_file_enum: | |
075d7359 SC |
334 | p->filename = name; |
335 | p->is_archive = false; | |
336 | p->real = true; | |
337 | p->local_sym_name = name; | |
338 | p->just_syms_flag = false; | |
339 | p->search_dirs_flag = true; | |
340 | break; | |
341 | case lang_input_file_is_file_enum: | |
342 | p->filename = name; | |
343 | p->is_archive = false; | |
344 | p->real = true; | |
345 | p->local_sym_name = name; | |
346 | p->just_syms_flag = false; | |
347 | p->search_dirs_flag = false; | |
348 | break; | |
349 | default: | |
350 | FAIL (); | |
351 | } | |
193c5f93 | 352 | p->the_bfd = (bfd *) NULL; |
075d7359 | 353 | p->asymbols = (asymbol **) NULL; |
075d7359 SC |
354 | p->next_real_file = (lang_statement_union_type *) NULL; |
355 | p->next = (lang_statement_union_type *) NULL; | |
2fa0b342 | 356 | p->symbol_count = 0; |
1d169acc | 357 | p->dynamic = config.dynamic_link; |
3c8deccc | 358 | p->whole_archive = whole_archive; |
5e6cd559 | 359 | p->loaded = false; |
075d7359 SC |
360 | lang_statement_append (&input_file_chain, |
361 | (lang_statement_union_type *) p, | |
362 | &p->next_real_file); | |
2fa0b342 DHW |
363 | return p; |
364 | } | |
365 | ||
366 | lang_input_statement_type * | |
8ddef552 DM |
367 | lang_add_input_file (name, file_type, target) |
368 | CONST char *name; | |
369 | lang_input_file_enum_type file_type; | |
370 | CONST char *target; | |
2fa0b342 | 371 | { |
1418c83b | 372 | lang_has_input_file = true; |
193c5f93 | 373 | return new_afile (name, file_type, target, true); |
2fa0b342 DHW |
374 | } |
375 | ||
1418c83b | 376 | /* Build enough state so that the parser can build its tree */ |
2fa0b342 | 377 | void |
8ddef552 | 378 | lang_init () |
2fa0b342 | 379 | { |
075d7359 | 380 | obstack_begin (&stat_obstack, 1000); |
2fa0b342 | 381 | |
075d7359 | 382 | stat_ptr = &statement_list; |
bfbdc80f | 383 | |
075d7359 | 384 | lang_list_init (stat_ptr); |
2fa0b342 | 385 | |
075d7359 SC |
386 | lang_list_init (&input_file_chain); |
387 | lang_list_init (&lang_output_section_statement); | |
388 | lang_list_init (&file_chain); | |
389 | first_file = lang_add_input_file ((char *) NULL, | |
390 | lang_input_file_is_marker_enum, | |
391 | (char *) NULL); | |
392 | abs_output_section = lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME); | |
9d1fe8a4 | 393 | |
686739e2 | 394 | abs_output_section->bfd_section = bfd_abs_section_ptr; |
9d1fe8a4 | 395 | |
2fa0b342 DHW |
396 | } |
397 | ||
1418c83b | 398 | /*---------------------------------------------------------------------- |
075d7359 SC |
399 | A region is an area of memory declared with the |
400 | MEMORY { name:org=exp, len=exp ... } | |
401 | syntax. | |
2fa0b342 | 402 | |
1418c83b | 403 | We maintain a list of all the regions here |
2fa0b342 | 404 | |
1418c83b SC |
405 | If no regions are specified in the script, then the default is used |
406 | which is created when looked up to be the entire data space | |
2fa0b342 DHW |
407 | */ |
408 | ||
409 | static lang_memory_region_type *lang_memory_region_list; | |
410 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
411 | ||
412 | lang_memory_region_type * | |
8ddef552 DM |
413 | lang_memory_region_lookup (name) |
414 | CONST char *CONST name; | |
2fa0b342 | 415 | { |
b038ec7b | 416 | lang_memory_region_type *p; |
075d7359 | 417 | |
1418c83b | 418 | for (p = lang_memory_region_list; |
075d7359 SC |
419 | p != (lang_memory_region_type *) NULL; |
420 | p = p->next) | |
421 | { | |
422 | if (strcmp (p->name, name) == 0) | |
423 | { | |
424 | return p; | |
425 | } | |
2fa0b342 | 426 | } |
36ea6198 ILT |
427 | |
428 | #if 0 | |
429 | /* This code used to always use the first region in the list as the | |
430 | default region. I changed it to instead use a region | |
431 | encompassing all of memory as the default region. This permits | |
432 | NOLOAD sections to work reasonably without requiring a region. | |
433 | People should specify what region they mean, if they really want | |
434 | a region. */ | |
075d7359 | 435 | if (strcmp (name, "*default*") == 0) |
2fa0b342 | 436 | { |
075d7359 SC |
437 | if (lang_memory_region_list != (lang_memory_region_type *) NULL) |
438 | { | |
439 | return lang_memory_region_list; | |
440 | } | |
2fa0b342 | 441 | } |
36ea6198 ILT |
442 | #endif |
443 | ||
075d7359 SC |
444 | { |
445 | lang_memory_region_type *new = | |
1d169acc | 446 | (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type)); |
075d7359 SC |
447 | |
448 | new->name = buystring (name); | |
449 | new->next = (lang_memory_region_type *) NULL; | |
450 | ||
451 | *lang_memory_region_list_tail = new; | |
452 | lang_memory_region_list_tail = &new->next; | |
453 | new->origin = 0; | |
d3c324e5 MM |
454 | new->flags = 0; |
455 | new->not_flags = 0; | |
8ddef552 | 456 | new->length = ~(bfd_size_type)0; |
075d7359 SC |
457 | new->current = 0; |
458 | new->had_full_message = false; | |
459 | ||
460 | return new; | |
461 | } | |
2fa0b342 DHW |
462 | } |
463 | ||
464 | ||
d3c324e5 MM |
465 | lang_memory_region_type * |
466 | lang_memory_default (section) | |
467 | asection *section; | |
468 | { | |
469 | lang_memory_region_type *p; | |
470 | ||
471 | flagword sec_flags = section->flags; | |
472 | ||
473 | /* Override SEC_DATA to mean a writable section. */ | |
474 | if (sec_flags & (SEC_ALLOC | SEC_READONLY | SEC_CODE) == SEC_ALLOC) | |
475 | sec_flags |= SEC_DATA; | |
476 | ||
477 | for (p = lang_memory_region_list; | |
478 | p != (lang_memory_region_type *) NULL; | |
479 | p = p->next) | |
480 | { | |
481 | if ((p->flags & sec_flags) != 0 | |
482 | && (p->not_flags & sec_flags) == 0) | |
483 | { | |
484 | return p; | |
485 | } | |
486 | } | |
487 | return lang_memory_region_lookup ("*default*"); | |
488 | } | |
489 | ||
2fa0b342 | 490 | lang_output_section_statement_type * |
8ddef552 DM |
491 | lang_output_section_find (name) |
492 | CONST char *CONST name; | |
2fa0b342 DHW |
493 | { |
494 | lang_statement_union_type *u; | |
495 | lang_output_section_statement_type *lookup; | |
496 | ||
497 | for (u = lang_output_section_statement.head; | |
075d7359 | 498 | u != (lang_statement_union_type *) NULL; |
2fa0b342 | 499 | u = lookup->next) |
075d7359 SC |
500 | { |
501 | lookup = &u->output_section_statement; | |
502 | if (strcmp (name, lookup->name) == 0) | |
503 | { | |
1418c83b SC |
504 | return lookup; |
505 | } | |
075d7359 SC |
506 | } |
507 | return (lang_output_section_statement_type *) NULL; | |
2fa0b342 DHW |
508 | } |
509 | ||
510 | lang_output_section_statement_type * | |
8ddef552 DM |
511 | lang_output_section_statement_lookup (name) |
512 | CONST char *CONST name; | |
2fa0b342 DHW |
513 | { |
514 | lang_output_section_statement_type *lookup; | |
2fa0b342 | 515 | |
075d7359 SC |
516 | lookup = lang_output_section_find (name); |
517 | if (lookup == (lang_output_section_statement_type *) NULL) | |
518 | { | |
2fa0b342 | 519 | |
075d7359 SC |
520 | lookup = (lang_output_section_statement_type *) |
521 | new_stat (lang_output_section_statement, stat_ptr); | |
522 | lookup->region = (lang_memory_region_type *) NULL; | |
523 | lookup->fill = 0; | |
524 | lookup->block_value = 1; | |
525 | lookup->name = name; | |
526 | ||
527 | lookup->next = (lang_statement_union_type *) NULL; | |
528 | lookup->bfd_section = (asection *) NULL; | |
529 | lookup->processed = false; | |
86bc0974 | 530 | lookup->sectype = normal_section; |
075d7359 SC |
531 | lookup->addr_tree = (etree_type *) NULL; |
532 | lang_list_init (&lookup->children); | |
533 | ||
1b8a42f3 ILT |
534 | lookup->memspec = (CONST char *) NULL; |
535 | lookup->flags = 0; | |
536 | lookup->subsection_alignment = -1; | |
537 | lookup->section_alignment = -1; | |
538 | lookup->load_base = (union etree_union *) NULL; | |
061e65f8 | 539 | lookup->phdrs = NULL; |
1b8a42f3 | 540 | |
075d7359 SC |
541 | lang_statement_append (&lang_output_section_statement, |
542 | (lang_statement_union_type *) lookup, | |
543 | &lookup->next); | |
544 | } | |
545 | return lookup; | |
546 | } | |
2fa0b342 | 547 | |
d3c324e5 MM |
548 | static void |
549 | lang_map_flags (flag) | |
550 | flagword flag; | |
551 | { | |
552 | if (flag & SEC_ALLOC) | |
553 | minfo ("a"); | |
554 | ||
555 | if (flag & SEC_CODE) | |
556 | minfo ("x"); | |
557 | ||
558 | if (flag & SEC_READONLY) | |
559 | minfo ("r"); | |
560 | ||
561 | if (flag & SEC_DATA) | |
562 | minfo ("w"); | |
563 | ||
564 | if (flag & SEC_LOAD) | |
565 | minfo ("l"); | |
566 | } | |
567 | ||
2fa0b342 | 568 | void |
8ddef552 | 569 | lang_map () |
2fa0b342 DHW |
570 | { |
571 | lang_memory_region_type *m; | |
075d7359 | 572 | |
0cacbcbe | 573 | minfo ("\nMemory Configuration\n\n"); |
d3c324e5 MM |
574 | fprintf (config.map_file, "%-16s %-18s %-18s %s\n", |
575 | "Name", "Origin", "Length", "Attributes"); | |
ae475b39 | 576 | |
2fa0b342 | 577 | for (m = lang_memory_region_list; |
075d7359 SC |
578 | m != (lang_memory_region_type *) NULL; |
579 | m = m->next) | |
2fa0b342 | 580 | { |
0cacbcbe ILT |
581 | char buf[100]; |
582 | int len; | |
583 | ||
584 | fprintf (config.map_file, "%-16s ", m->name); | |
585 | ||
586 | sprintf_vma (buf, m->origin); | |
587 | minfo ("0x%s ", buf); | |
588 | len = strlen (buf); | |
589 | while (len < 16) | |
590 | { | |
591 | print_space (); | |
592 | ++len; | |
593 | } | |
594 | ||
d3c324e5 MM |
595 | minfo ("0x%V", m->length); |
596 | if (m->flags || m->not_flags) | |
597 | { | |
598 | #ifndef BFD64 | |
599 | minfo (" "); | |
600 | #endif | |
601 | if (m->flags) | |
602 | { | |
603 | print_space (); | |
604 | lang_map_flags (m->flags); | |
605 | } | |
606 | ||
607 | if (m->not_flags) | |
608 | { | |
609 | minfo (" !"); | |
610 | lang_map_flags (m->not_flags); | |
611 | } | |
612 | } | |
613 | ||
614 | print_nl (); | |
2fa0b342 | 615 | } |
2fa0b342 | 616 | |
0cacbcbe | 617 | fprintf (config.map_file, "\nLinker script and memory map\n\n"); |
2fa0b342 | 618 | |
0cacbcbe | 619 | print_statements (); |
2fa0b342 DHW |
620 | } |
621 | ||
86bc0974 ILT |
622 | /* Initialize an output section. */ |
623 | ||
075d7359 | 624 | static void |
8ddef552 | 625 | init_os (s) |
86bc0974 | 626 | lang_output_section_statement_type *s; |
2fa0b342 | 627 | { |
cf2e4f5f ILT |
628 | section_userdata_type *new; |
629 | ||
86bc0974 ILT |
630 | if (s->bfd_section != NULL) |
631 | return; | |
632 | ||
cf2e4f5f ILT |
633 | if (strcmp (s->name, DISCARD_SECTION_NAME) == 0) |
634 | einfo ("%P%F: Illegal use of `%s' section", DISCARD_SECTION_NAME); | |
635 | ||
636 | new = ((section_userdata_type *) | |
637 | stat_alloc (sizeof (section_userdata_type))); | |
075d7359 SC |
638 | |
639 | s->bfd_section = bfd_get_section_by_name (output_bfd, s->name); | |
640 | if (s->bfd_section == (asection *) NULL) | |
641 | s->bfd_section = bfd_make_section (output_bfd, s->name); | |
642 | if (s->bfd_section == (asection *) NULL) | |
643 | { | |
ddddcdf0 | 644 | einfo ("%P%F: output format %s cannot represent section called %s\n", |
075d7359 | 645 | output_bfd->xvec->name, s->name); |
9d1fe8a4 | 646 | } |
2fa0b342 | 647 | s->bfd_section->output_section = s->bfd_section; |
7bc4a0d7 | 648 | |
2fa0b342 DHW |
649 | /* We initialize an output sections output offset to minus its own */ |
650 | /* vma to allow us to output a section through itself */ | |
651 | s->bfd_section->output_offset = 0; | |
075d7359 | 652 | get_userdata (s->bfd_section) = (PTR) new; |
86bc0974 ILT |
653 | |
654 | /* If there is a base address, make sure that any sections it might | |
655 | mention are initialized. */ | |
656 | if (s->addr_tree != NULL) | |
657 | exp_init_os (s->addr_tree); | |
658 | } | |
659 | ||
660 | /* Make sure that all output sections mentioned in an expression are | |
661 | initialized. */ | |
662 | ||
663 | static void | |
664 | exp_init_os (exp) | |
665 | etree_type *exp; | |
666 | { | |
667 | switch (exp->type.node_class) | |
668 | { | |
669 | case etree_assign: | |
670 | exp_init_os (exp->assign.src); | |
671 | break; | |
672 | ||
673 | case etree_binary: | |
674 | exp_init_os (exp->binary.lhs); | |
675 | exp_init_os (exp->binary.rhs); | |
676 | break; | |
677 | ||
678 | case etree_trinary: | |
679 | exp_init_os (exp->trinary.cond); | |
680 | exp_init_os (exp->trinary.lhs); | |
681 | exp_init_os (exp->trinary.rhs); | |
682 | break; | |
683 | ||
684 | case etree_unary: | |
685 | exp_init_os (exp->unary.child); | |
686 | break; | |
687 | ||
688 | case etree_name: | |
689 | switch (exp->type.node_code) | |
690 | { | |
691 | case ADDR: | |
5735ac9e | 692 | case LOADADDR: |
86bc0974 ILT |
693 | case SIZEOF: |
694 | { | |
695 | lang_output_section_statement_type *os; | |
696 | ||
697 | os = lang_output_section_find (exp->name.name); | |
698 | if (os != NULL && os->bfd_section == NULL) | |
699 | init_os (os); | |
700 | } | |
701 | } | |
702 | break; | |
703 | ||
704 | default: | |
705 | break; | |
706 | } | |
2fa0b342 | 707 | } |
23595ba5 ILT |
708 | |
709 | /* Sections marked with the SEC_LINK_ONCE flag should only be linked | |
710 | once into the output. This routine checks each sections, and | |
711 | arranges to discard it if a section of the same name has already | |
712 | been linked. This code assumes that all relevant sections have the | |
713 | SEC_LINK_ONCE flag set; that is, it does not depend solely upon the | |
714 | section name. This is called via bfd_map_over_sections. */ | |
715 | ||
716 | /*ARGSUSED*/ | |
717 | static void | |
c5a0d31a | 718 | section_already_linked (abfd, sec, data) |
23595ba5 ILT |
719 | bfd *abfd; |
720 | asection *sec; | |
c5a0d31a | 721 | PTR data; |
23595ba5 | 722 | { |
c5a0d31a | 723 | lang_input_statement_type *entry = (lang_input_statement_type *) data; |
23595ba5 ILT |
724 | struct sec_link_once |
725 | { | |
726 | struct sec_link_once *next; | |
727 | asection *sec; | |
728 | }; | |
729 | static struct sec_link_once *sec_link_once_list; | |
730 | flagword flags; | |
731 | const char *name; | |
732 | struct sec_link_once *l; | |
733 | ||
c5a0d31a ILT |
734 | /* If we are only reading symbols from this object, then we want to |
735 | discard all sections. */ | |
736 | if (entry->just_syms_flag) | |
737 | { | |
738 | sec->output_section = bfd_abs_section_ptr; | |
739 | sec->output_offset = sec->vma; | |
740 | return; | |
741 | } | |
742 | ||
23595ba5 ILT |
743 | flags = bfd_get_section_flags (abfd, sec); |
744 | ||
745 | if ((flags & SEC_LINK_ONCE) == 0) | |
746 | return; | |
747 | ||
748 | name = bfd_get_section_name (abfd, sec); | |
749 | ||
750 | for (l = sec_link_once_list; l != NULL; l = l->next) | |
751 | { | |
752 | if (strcmp (name, bfd_get_section_name (l->sec->owner, l->sec)) == 0) | |
753 | { | |
754 | /* The section has already been linked. See if we should | |
755 | issue a warning. */ | |
756 | switch (flags & SEC_LINK_DUPLICATES) | |
757 | { | |
758 | default: | |
759 | abort (); | |
760 | ||
761 | case SEC_LINK_DUPLICATES_DISCARD: | |
762 | break; | |
763 | ||
764 | case SEC_LINK_DUPLICATES_ONE_ONLY: | |
0a0d1bdd | 765 | einfo ("%P: %B: warning: ignoring duplicate section `%s'\n", |
23595ba5 ILT |
766 | abfd, name); |
767 | break; | |
768 | ||
769 | case SEC_LINK_DUPLICATES_SAME_CONTENTS: | |
770 | /* FIXME: We should really dig out the contents of both | |
771 | sections and memcmp them. The COFF/PE spec says that | |
772 | the Microsoft linker does not implement this | |
773 | correctly, so I'm not going to bother doing it | |
774 | either. */ | |
775 | /* Fall through. */ | |
776 | case SEC_LINK_DUPLICATES_SAME_SIZE: | |
777 | if (bfd_section_size (abfd, sec) | |
778 | != bfd_section_size (l->sec->owner, l->sec)) | |
0a0d1bdd DE |
779 | einfo ("%P: %B: warning: duplicate section `%s' has different size\n", |
780 | abfd, name); | |
23595ba5 ILT |
781 | break; |
782 | } | |
783 | ||
784 | /* Set the output_section field so that wild_doit does not | |
785 | create a lang_input_section structure for this section. */ | |
786 | sec->output_section = bfd_abs_section_ptr; | |
787 | ||
788 | return; | |
789 | } | |
790 | } | |
791 | ||
792 | /* This is the first section with this name. Record it. */ | |
793 | ||
794 | l = (struct sec_link_once *) xmalloc (sizeof *l); | |
795 | l->sec = sec; | |
796 | l->next = sec_link_once_list; | |
797 | sec_link_once_list = l; | |
798 | } | |
64664e69 ILT |
799 | \f |
800 | /* The wild routines. | |
2fa0b342 | 801 | |
64664e69 ILT |
802 | These expand statements like *(.text) and foo.o to a list of |
803 | explicit actions, like foo.o(.text), bar.o(.text) and | |
804 | foo.o(.text, .data). */ | |
1418c83b | 805 | |
9f19768a ILT |
806 | /* Return true if the PATTERN argument is a wildcard pattern. |
807 | Although backslashes are treated specially if a pattern contains | |
808 | wildcards, we do not consider the mere presence of a backslash to | |
809 | be enough to cause the the pattern to be treated as a wildcard. | |
810 | That lets us handle DOS filenames more naturally. */ | |
86bc0974 ILT |
811 | |
812 | static boolean | |
813 | wildcardp (pattern) | |
814 | const char *pattern; | |
815 | { | |
816 | const char *s; | |
817 | ||
818 | for (s = pattern; *s != '\0'; ++s) | |
819 | if (*s == '?' | |
86bc0974 ILT |
820 | || *s == '*' |
821 | || *s == '[') | |
822 | return true; | |
823 | return false; | |
824 | } | |
825 | ||
64664e69 ILT |
826 | /* Add SECTION to the output section OUTPUT. Do this by creating a |
827 | lang_input_section statement which is placed at PTR. FILE is the | |
828 | input file which holds SECTION. */ | |
075d7359 | 829 | |
0b3499f6 | 830 | void |
8ddef552 | 831 | wild_doit (ptr, section, output, file) |
64664e69 ILT |
832 | lang_statement_list_type *ptr; |
833 | asection *section; | |
834 | lang_output_section_statement_type *output; | |
835 | lang_input_statement_type *file; | |
2fa0b342 | 836 | { |
6429ad7e | 837 | flagword flags; |
23595ba5 ILT |
838 | boolean discard; |
839 | ||
6429ad7e ILT |
840 | flags = bfd_get_section_flags (section->owner, section); |
841 | ||
23595ba5 ILT |
842 | discard = false; |
843 | ||
844 | /* If we are doing a final link, discard sections marked with | |
845 | SEC_EXCLUDE. */ | |
846 | if (! link_info.relocateable | |
6429ad7e | 847 | && (flags & SEC_EXCLUDE) != 0) |
23595ba5 ILT |
848 | discard = true; |
849 | ||
850 | /* Discard input sections which are assigned to a section named | |
851 | DISCARD_SECTION_NAME. */ | |
cf2e4f5f | 852 | if (strcmp (output->name, DISCARD_SECTION_NAME) == 0) |
23595ba5 ILT |
853 | discard = true; |
854 | ||
6429ad7e ILT |
855 | /* Discard debugging sections if we are stripping debugging |
856 | information. */ | |
857 | if ((link_info.strip == strip_debugger || link_info.strip == strip_all) | |
858 | && (flags & SEC_DEBUGGING) != 0) | |
859 | discard = true; | |
860 | ||
23595ba5 | 861 | if (discard) |
cf2e4f5f | 862 | { |
23595ba5 | 863 | if (section->output_section == NULL) |
cf2e4f5f ILT |
864 | { |
865 | /* This prevents future calls from assigning this section. */ | |
866 | section->output_section = bfd_abs_section_ptr; | |
867 | } | |
868 | return; | |
869 | } | |
870 | ||
23595ba5 | 871 | if (section->output_section == NULL) |
ae475b39 | 872 | { |
b038ec7b | 873 | boolean first; |
23595ba5 | 874 | lang_input_section_type *new; |
b038ec7b | 875 | flagword flags; |
23595ba5 ILT |
876 | |
877 | if (output->bfd_section == NULL) | |
b038ec7b RH |
878 | { |
879 | init_os (output); | |
880 | first = true; | |
881 | } | |
882 | else | |
883 | first = false; | |
23595ba5 | 884 | |
64664e69 | 885 | /* Add a section reference to the list */ |
23595ba5 | 886 | new = new_stat (lang_input_section, ptr); |
64664e69 ILT |
887 | |
888 | new->section = section; | |
889 | new->ifile = file; | |
890 | section->output_section = output->bfd_section; | |
891 | ||
b038ec7b RH |
892 | flags = section->flags; |
893 | ||
64664e69 ILT |
894 | /* We don't copy the SEC_NEVER_LOAD flag from an input section |
895 | to an output section, because we want to be able to include a | |
896 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
897 | section (I don't know why we want to do this, but we do). | |
898 | build_link_order in ldwrite.c handles this case by turning | |
b038ec7b RH |
899 | the embedded SEC_NEVER_LOAD section into a fill. */ |
900 | ||
901 | flags &= ~ SEC_NEVER_LOAD; | |
902 | ||
903 | /* If final link, don't copy the SEC_LINK_ONCE flags, they've | |
904 | already been processed. One reason to do this is that on pe | |
905 | format targets, .text$foo sections go into .text and it's odd | |
906 | to see .text with SEC_LINK_ONCE set. */ | |
907 | ||
908 | if (! link_info.relocateable) | |
909 | flags &= ~ (SEC_LINK_ONCE | SEC_LINK_DUPLICATES); | |
910 | ||
911 | /* If this is not the first input section, and the SEC_READONLY | |
912 | flag is not currently set, then don't set it just because the | |
913 | input section has it set. */ | |
914 | ||
915 | if (! first && (section->output_section->flags & SEC_READONLY) == 0) | |
916 | flags &= ~ SEC_READONLY; | |
86bc0974 | 917 | |
b038ec7b | 918 | section->output_section->flags |= flags; |
86bc0974 | 919 | |
b038ec7b RH |
920 | /* If SEC_READONLY is not set in the input section, then clear |
921 | it from the output section. */ | |
922 | if ((section->flags & SEC_READONLY) == 0) | |
923 | section->output_section->flags &= ~SEC_READONLY; | |
64664e69 | 924 | |
86bc0974 | 925 | switch (output->sectype) |
64664e69 | 926 | { |
86bc0974 ILT |
927 | case normal_section: |
928 | break; | |
929 | case dsect_section: | |
930 | case copy_section: | |
931 | case info_section: | |
932 | case overlay_section: | |
933 | output->bfd_section->flags &= ~SEC_ALLOC; | |
934 | break; | |
935 | case noload_section: | |
b038ec7b | 936 | output->bfd_section->flags &= ~SEC_LOAD; |
64664e69 | 937 | output->bfd_section->flags |= SEC_NEVER_LOAD; |
86bc0974 | 938 | break; |
64664e69 ILT |
939 | } |
940 | ||
941 | if (section->alignment_power > output->bfd_section->alignment_power) | |
942 | output->bfd_section->alignment_power = section->alignment_power; | |
943 | ||
cf2e4f5f | 944 | /* If supplied an aligment, then force it. */ |
64664e69 ILT |
945 | if (output->section_alignment != -1) |
946 | output->bfd_section->alignment_power = output->section_alignment; | |
e20873a7 | 947 | } |
2fa0b342 DHW |
948 | } |
949 | ||
64664e69 ILT |
950 | /* Expand a wild statement for a particular FILE. SECTION may be |
951 | NULL, in which case it is a wild card. */ | |
952 | ||
075d7359 | 953 | static void |
8ddef552 | 954 | wild_section (ptr, section, file, output) |
309c8153 ILT |
955 | lang_wild_statement_type *ptr; |
956 | const char *section; | |
957 | lang_input_statement_type *file; | |
958 | lang_output_section_statement_type *output; | |
2fa0b342 | 959 | { |
075d7359 SC |
960 | if (file->just_syms_flag == false) |
961 | { | |
309c8153 | 962 | register asection *s; |
86bc0974 ILT |
963 | boolean wildcard; |
964 | ||
965 | if (section == NULL) | |
966 | wildcard = false; | |
967 | else | |
968 | wildcard = wildcardp (section); | |
309c8153 ILT |
969 | |
970 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
075d7359 | 971 | { |
86bc0974 ILT |
972 | boolean match; |
973 | ||
309c8153 ILT |
974 | /* Attach all sections named SECTION. If SECTION is NULL, |
975 | then attach all sections. | |
976 | ||
977 | Previously, if SECTION was NULL, this code did not call | |
978 | wild_doit if the SEC_IS_COMMON flag was set for the | |
979 | section. I did not understand that, and I took it out. | |
980 | --ian@cygnus.com. */ | |
981 | ||
86bc0974 ILT |
982 | if (section == NULL) |
983 | match = true; | |
984 | else | |
985 | { | |
986 | const char *name; | |
987 | ||
988 | name = bfd_get_section_name (file->the_bfd, s); | |
989 | if (wildcard) | |
990 | match = fnmatch (section, name, 0) == 0 ? true : false; | |
991 | else | |
992 | match = strcmp (section, name) == 0 ? true : false; | |
993 | } | |
994 | if (match) | |
f9d3d71a | 995 | wild_doit (&ptr->children, s, output, file); |
075d7359 | 996 | } |
2fa0b342 | 997 | } |
2fa0b342 DHW |
998 | } |
999 | ||
64664e69 ILT |
1000 | /* This is passed a file name which must have been seen already and |
1001 | added to the statement tree. We will see if it has been opened | |
1002 | already and had its symbols read. If not then we'll read it. */ | |
2fa0b342 | 1003 | |
193c5f93 ILT |
1004 | static lang_input_statement_type * |
1005 | lookup_name (name) | |
64664e69 | 1006 | const char *name; |
2fa0b342 DHW |
1007 | { |
1008 | lang_input_statement_type *search; | |
075d7359 SC |
1009 | |
1010 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
1011 | search != (lang_input_statement_type *) NULL; | |
1012 | search = (lang_input_statement_type *) search->next_real_file) | |
1013 | { | |
1014 | if (search->filename == (char *) NULL && name == (char *) NULL) | |
c477527c ILT |
1015 | return search; |
1016 | if (search->filename != (char *) NULL | |
1017 | && name != (char *) NULL | |
1018 | && strcmp (search->filename, name) == 0) | |
1019 | break; | |
075d7359 | 1020 | } |
2fa0b342 | 1021 | |
c477527c | 1022 | if (search == (lang_input_statement_type *) NULL) |
193c5f93 ILT |
1023 | search = new_afile (name, lang_input_file_is_file_enum, default_target, |
1024 | false); | |
c477527c | 1025 | |
5e6cd559 ILT |
1026 | /* If we have already added this file, or this file is not real |
1027 | (FIXME: can that ever actually happen?) or the name is NULL | |
1028 | (FIXME: can that ever actually happen?) don't add this file. */ | |
193c5f93 | 1029 | if (search->loaded |
5e6cd559 ILT |
1030 | || ! search->real |
1031 | || search->filename == (const char *) NULL) | |
1032 | return search; | |
1033 | ||
6a02a973 | 1034 | load_symbols (search, (lang_statement_list_type *) NULL); |
193c5f93 ILT |
1035 | |
1036 | return search; | |
1037 | } | |
1038 | ||
1039 | /* Get the symbols for an input file. */ | |
c477527c | 1040 | |
193c5f93 | 1041 | static void |
6a02a973 | 1042 | load_symbols (entry, place) |
193c5f93 | 1043 | lang_input_statement_type *entry; |
6a02a973 | 1044 | lang_statement_list_type *place; |
193c5f93 | 1045 | { |
0b3499f6 ILT |
1046 | char **matching; |
1047 | ||
193c5f93 ILT |
1048 | if (entry->loaded) |
1049 | return; | |
1050 | ||
1051 | ldfile_open_file (entry); | |
1052 | ||
0b3499f6 ILT |
1053 | if (! bfd_check_format (entry->the_bfd, bfd_archive) |
1054 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
1055 | { | |
1056 | bfd_error_type err; | |
6a02a973 | 1057 | lang_statement_list_type *hold; |
0b3499f6 ILT |
1058 | |
1059 | err = bfd_get_error (); | |
1060 | if (err == bfd_error_file_ambiguously_recognized) | |
1061 | { | |
1062 | char **p; | |
1063 | ||
1064 | einfo ("%B: file not recognized: %E\n", entry->the_bfd); | |
1065 | einfo ("%B: matching formats:", entry->the_bfd); | |
1066 | for (p = matching; *p != NULL; p++) | |
1067 | einfo (" %s", *p); | |
1068 | einfo ("%F\n"); | |
1069 | } | |
6a02a973 ILT |
1070 | else if (err != bfd_error_file_not_recognized |
1071 | || place == NULL) | |
0b3499f6 ILT |
1072 | einfo ("%F%B: file not recognized: %E\n", entry->the_bfd); |
1073 | ||
0b3499f6 ILT |
1074 | bfd_close (entry->the_bfd); |
1075 | entry->the_bfd = NULL; | |
1076 | ||
64664e69 ILT |
1077 | /* See if the emulation has some special knowledge. */ |
1078 | ||
1079 | if (ldemul_unrecognized_file (entry)) | |
1080 | return; | |
1081 | ||
1082 | /* Try to interpret the file as a linker script. */ | |
1083 | ||
0b3499f6 ILT |
1084 | ldfile_open_command_file (entry->filename); |
1085 | ||
6a02a973 ILT |
1086 | hold = stat_ptr; |
1087 | stat_ptr = place; | |
1088 | ||
0b3499f6 ILT |
1089 | ldfile_assumed_script = true; |
1090 | parser_input = input_script; | |
1091 | yyparse (); | |
1092 | ldfile_assumed_script = false; | |
1093 | ||
6a02a973 ILT |
1094 | stat_ptr = hold; |
1095 | ||
0b3499f6 ILT |
1096 | return; |
1097 | } | |
1098 | ||
1099 | /* We don't call ldlang_add_file for an archive. Instead, the | |
1100 | add_symbols entry point will call ldlang_add_file, via the | |
1101 | add_archive_element callback, for each element of the archive | |
1102 | which is used. */ | |
f400bbbb | 1103 | switch (bfd_get_format (entry->the_bfd)) |
5e6cd559 | 1104 | { |
f400bbbb ILT |
1105 | default: |
1106 | break; | |
1107 | ||
1108 | case bfd_object: | |
193c5f93 | 1109 | ldlang_add_file (entry); |
5e6cd559 | 1110 | if (trace_files || trace_file_tries) |
193c5f93 | 1111 | info_msg ("%I\n", entry); |
f400bbbb ILT |
1112 | break; |
1113 | ||
1114 | case bfd_archive: | |
3c8deccc | 1115 | if (entry->whole_archive) |
f400bbbb ILT |
1116 | { |
1117 | bfd *member = bfd_openr_next_archived_file (entry->the_bfd, | |
1118 | (bfd *) NULL); | |
1119 | while (member != NULL) | |
1120 | { | |
1121 | if (! bfd_check_format (member, bfd_object)) | |
1122 | einfo ("%F%B: object %B in archive is not object\n", | |
1123 | entry->the_bfd, member); | |
1124 | if (! ((*link_info.callbacks->add_archive_element) | |
0cacbcbe | 1125 | (&link_info, member, "--whole-archive"))) |
f400bbbb ILT |
1126 | abort (); |
1127 | if (! bfd_link_add_symbols (member, &link_info)) | |
1128 | einfo ("%F%B: could not read symbols: %E\n", member); | |
1129 | member = bfd_openr_next_archived_file (entry->the_bfd, | |
1130 | member); | |
1131 | } | |
1132 | ||
1133 | entry->loaded = true; | |
1134 | ||
1135 | return; | |
1136 | } | |
5e6cd559 | 1137 | } |
1418c83b | 1138 | |
0b3499f6 | 1139 | if (! bfd_link_add_symbols (entry->the_bfd, &link_info)) |
193c5f93 | 1140 | einfo ("%F%B: could not read symbols: %E\n", entry->the_bfd); |
5e6cd559 | 1141 | |
193c5f93 | 1142 | entry->loaded = true; |
2fa0b342 DHW |
1143 | } |
1144 | ||
86bc0974 ILT |
1145 | /* Handle a wild statement for a single file F. */ |
1146 | ||
1147 | static void | |
1148 | wild_file (s, section, f, output) | |
1149 | lang_wild_statement_type *s; | |
1150 | const char *section; | |
1151 | lang_input_statement_type *f; | |
1152 | lang_output_section_statement_type *output; | |
1153 | { | |
1154 | if (f->the_bfd == NULL | |
1155 | || ! bfd_check_format (f->the_bfd, bfd_archive)) | |
1156 | wild_section (s, section, f, output); | |
1157 | else | |
1158 | { | |
1159 | bfd *member; | |
1160 | ||
1161 | /* This is an archive file. We must map each member of the | |
1162 | archive separately. */ | |
1163 | member = bfd_openr_next_archived_file (f->the_bfd, (bfd *) NULL); | |
1164 | while (member != NULL) | |
1165 | { | |
1166 | /* When lookup_name is called, it will call the add_symbols | |
1167 | entry point for the archive. For each element of the | |
1168 | archive which is included, BFD will call ldlang_add_file, | |
1169 | which will set the usrdata field of the member to the | |
1170 | lang_input_statement. */ | |
1171 | if (member->usrdata != NULL) | |
1172 | { | |
1173 | wild_section (s, section, | |
1174 | (lang_input_statement_type *) member->usrdata, | |
1175 | output); | |
1176 | } | |
1177 | ||
1178 | member = bfd_openr_next_archived_file (f->the_bfd, member); | |
1179 | } | |
1180 | } | |
1181 | } | |
1182 | ||
64664e69 ILT |
1183 | /* Handle a wild statement. SECTION or FILE or both may be NULL, |
1184 | indicating that it is a wildcard. Separate lang_input_section | |
1185 | statements are created for each part of the expansion; they are | |
1186 | added after the wild statement S. OUTPUT is the output section. */ | |
1187 | ||
2fa0b342 | 1188 | static void |
8ddef552 | 1189 | wild (s, section, file, target, output) |
64664e69 ILT |
1190 | lang_wild_statement_type *s; |
1191 | const char *section; | |
1192 | const char *file; | |
1193 | const char *target; | |
1194 | lang_output_section_statement_type *output; | |
2fa0b342 DHW |
1195 | { |
1196 | lang_input_statement_type *f; | |
075d7359 SC |
1197 | |
1198 | if (file == (char *) NULL) | |
1199 | { | |
1200 | /* Perform the iteration over all files in the list */ | |
1201 | for (f = (lang_input_statement_type *) file_chain.head; | |
1202 | f != (lang_input_statement_type *) NULL; | |
1203 | f = (lang_input_statement_type *) f->next) | |
1204 | { | |
86bc0974 ILT |
1205 | wild_file (s, section, f, output); |
1206 | } | |
1207 | } | |
1208 | else if (wildcardp (file)) | |
1209 | { | |
1210 | for (f = (lang_input_statement_type *) file_chain.head; | |
1211 | f != (lang_input_statement_type *) NULL; | |
1212 | f = (lang_input_statement_type *) f->next) | |
1213 | { | |
1214 | if (fnmatch (file, f->filename, FNM_FILE_NAME) == 0) | |
1215 | wild_file (s, section, f, output); | |
075d7359 SC |
1216 | } |
1217 | } | |
1218 | else | |
1219 | { | |
1220 | /* Perform the iteration over a single file */ | |
3d0c8fa1 | 1221 | f = lookup_name (file); |
86bc0974 | 1222 | wild_file (s, section, f, output); |
075d7359 | 1223 | } |
64664e69 | 1224 | |
075d7359 SC |
1225 | if (section != (char *) NULL |
1226 | && strcmp (section, "COMMON") == 0 | |
64664e69 | 1227 | && default_common_section == NULL) |
075d7359 | 1228 | { |
64664e69 ILT |
1229 | /* Remember the section that common is going to in case we later |
1230 | get something which doesn't know where to put it. */ | |
075d7359 | 1231 | default_common_section = output; |
2fa0b342 | 1232 | } |
2fa0b342 DHW |
1233 | } |
1234 | ||
64664e69 | 1235 | /* Open the output file. */ |
97fbbaca | 1236 | |
075d7359 | 1237 | static bfd * |
8ddef552 | 1238 | open_output (name) |
64664e69 | 1239 | const char *name; |
2fa0b342 | 1240 | { |
097879bc | 1241 | bfd *output; |
097879bc | 1242 | |
075d7359 | 1243 | if (output_target == (char *) NULL) |
ae475b39 SC |
1244 | { |
1245 | if (current_target != (char *) NULL) | |
1246 | output_target = current_target; | |
1247 | else | |
1248 | output_target = default_target; | |
1249 | } | |
075d7359 | 1250 | output = bfd_openw (name, output_target); |
075d7359 SC |
1251 | |
1252 | if (output == (bfd *) NULL) | |
1253 | { | |
5bcb7f28 | 1254 | if (bfd_get_error () == bfd_error_invalid_target) |
ae475b39 | 1255 | { |
ddddcdf0 | 1256 | einfo ("%P%F: target %s not found\n", output_target); |
ae475b39 | 1257 | } |
ddddcdf0 | 1258 | einfo ("%P%F: cannot open output file %s: %E\n", name); |
075d7359 | 1259 | } |
30d1a390 | 1260 | |
86bc0974 | 1261 | delete_output_file_on_failure = true; |
97fbbaca | 1262 | |
30d1a390 | 1263 | /* output->flags |= D_PAGED;*/ |
075d7359 | 1264 | |
ddddcdf0 ILT |
1265 | if (! bfd_set_format (output, bfd_object)) |
1266 | einfo ("%P%F:%s: can not make object file: %E\n", name); | |
1267 | if (! bfd_set_arch_mach (output, | |
1268 | ldfile_output_architecture, | |
1269 | ldfile_output_machine)) | |
1270 | einfo ("%P%F:%s: can not set architecture: %E\n", name); | |
1271 | ||
c477527c ILT |
1272 | link_info.hash = bfd_link_hash_table_create (output); |
1273 | if (link_info.hash == (struct bfd_link_hash_table *) NULL) | |
1274 | einfo ("%P%F: can not create link hash table: %E\n"); | |
1275 | ||
1b8a42f3 | 1276 | bfd_set_gp_size (output, g_switch_value); |
2fa0b342 DHW |
1277 | return output; |
1278 | } | |
1418c83b SC |
1279 | |
1280 | ||
097879bc | 1281 | |
1418c83b | 1282 | |
2fa0b342 | 1283 | static void |
8ddef552 DM |
1284 | ldlang_open_output (statement) |
1285 | lang_statement_union_type * statement; | |
2fa0b342 | 1286 | { |
075d7359 SC |
1287 | switch (statement->header.type) |
1288 | { | |
c477527c ILT |
1289 | case lang_output_statement_enum: |
1290 | ASSERT (output_bfd == (bfd *) NULL); | |
075d7359 SC |
1291 | output_bfd = open_output (statement->output_statement.name); |
1292 | ldemul_set_output_arch (); | |
c477527c | 1293 | if (config.magic_demand_paged && !link_info.relocateable) |
075d7359 SC |
1294 | output_bfd->flags |= D_PAGED; |
1295 | else | |
1296 | output_bfd->flags &= ~D_PAGED; | |
1297 | if (config.text_read_only) | |
1298 | output_bfd->flags |= WP_TEXT; | |
1299 | else | |
1300 | output_bfd->flags &= ~WP_TEXT; | |
6799c638 | 1301 | if (link_info.traditional_format) |
c96386c4 ILT |
1302 | output_bfd->flags |= BFD_TRADITIONAL_FORMAT; |
1303 | else | |
1304 | output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; | |
075d7359 | 1305 | break; |
1418c83b | 1306 | |
075d7359 SC |
1307 | case lang_target_statement_enum: |
1308 | current_target = statement->target_statement.target; | |
1309 | break; | |
1310 | default: | |
1311 | break; | |
1312 | } | |
1418c83b | 1313 | } |
2fa0b342 | 1314 | |
309c8153 ILT |
1315 | /* Open all the input files. */ |
1316 | ||
1418c83b | 1317 | static void |
309c8153 ILT |
1318 | open_input_bfds (s, force) |
1319 | lang_statement_union_type *s; | |
1320 | boolean force; | |
1418c83b | 1321 | { |
309c8153 | 1322 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
075d7359 | 1323 | { |
309c8153 | 1324 | switch (s->header.type) |
075d7359 | 1325 | { |
309c8153 ILT |
1326 | case lang_constructors_statement_enum: |
1327 | open_input_bfds (constructor_list.head, force); | |
1328 | break; | |
1329 | case lang_output_section_statement_enum: | |
1330 | open_input_bfds (s->output_section_statement.children.head, force); | |
1331 | break; | |
1332 | case lang_wild_statement_enum: | |
1333 | /* Maybe we should load the file's symbols */ | |
86bc0974 ILT |
1334 | if (s->wild_statement.filename |
1335 | && ! wildcardp (s->wild_statement.filename)) | |
309c8153 ILT |
1336 | (void) lookup_name (s->wild_statement.filename); |
1337 | open_input_bfds (s->wild_statement.children.head, force); | |
1338 | break; | |
1339 | case lang_group_statement_enum: | |
1340 | { | |
1341 | struct bfd_link_hash_entry *undefs; | |
1342 | ||
1343 | /* We must continually search the entries in the group | |
1344 | until no new symbols are added to the list of undefined | |
1345 | symbols. */ | |
1346 | ||
1347 | do | |
1348 | { | |
1349 | undefs = link_info.hash->undefs_tail; | |
1350 | open_input_bfds (s->group_statement.children.head, true); | |
1351 | } | |
1352 | while (undefs != link_info.hash->undefs_tail); | |
1353 | } | |
1354 | break; | |
1355 | case lang_target_statement_enum: | |
1356 | current_target = s->target_statement.target; | |
1357 | break; | |
1358 | case lang_input_statement_enum: | |
1359 | if (s->input_statement.real == true) | |
1360 | { | |
6a02a973 ILT |
1361 | lang_statement_list_type add; |
1362 | ||
309c8153 ILT |
1363 | s->input_statement.target = current_target; |
1364 | ||
1365 | /* If we are being called from within a group, and this | |
1366 | is an archive which has already been searched, then | |
1367 | force it to be researched. */ | |
1368 | if (force | |
1369 | && s->input_statement.loaded | |
1370 | && bfd_check_format (s->input_statement.the_bfd, | |
1371 | bfd_archive)) | |
1372 | s->input_statement.loaded = false; | |
1373 | ||
6a02a973 ILT |
1374 | lang_list_init (&add); |
1375 | ||
1376 | load_symbols (&s->input_statement, &add); | |
1377 | ||
1378 | if (add.head != NULL) | |
1379 | { | |
1380 | *add.tail = s->next; | |
1381 | s->next = add.head; | |
1382 | } | |
309c8153 ILT |
1383 | } |
1384 | break; | |
1385 | default: | |
1386 | break; | |
075d7359 | 1387 | } |
075d7359 | 1388 | } |
2fa0b342 | 1389 | } |
075d7359 | 1390 | |
2fa0b342 DHW |
1391 | /* If there are [COMMONS] statements, put a wild one into the bss section */ |
1392 | ||
1393 | static void | |
075d7359 | 1394 | lang_reasonable_defaults () |
2fa0b342 | 1395 | { |
1418c83b | 1396 | #if 0 |
075d7359 SC |
1397 | lang_output_section_statement_lookup (".text"); |
1398 | lang_output_section_statement_lookup (".data"); | |
8cb5eb31 | 1399 | |
075d7359 SC |
1400 | default_common_section = |
1401 | lang_output_section_statement_lookup (".bss"); | |
8cb5eb31 | 1402 | |
1418c83b | 1403 | |
075d7359 SC |
1404 | if (placed_commons == false) |
1405 | { | |
1406 | lang_wild_statement_type *new = | |
1407 | new_stat (lang_wild_statement, | |
1408 | &default_common_section->children); | |
1409 | ||
1410 | new->section_name = "COMMON"; | |
1411 | new->filename = (char *) NULL; | |
1412 | lang_list_init (&new->children); | |
1413 | } | |
1418c83b | 1414 | #endif |
8cb5eb31 | 1415 | |
2fa0b342 DHW |
1416 | } |
1417 | ||
1418c83b SC |
1418 | /* |
1419 | Add the supplied name to the symbol table as an undefined reference. | |
1420 | Remove items from the chain as we open input bfds | |
1421 | */ | |
075d7359 SC |
1422 | typedef struct ldlang_undef_chain_list |
1423 | { | |
f177a611 | 1424 | struct ldlang_undef_chain_list *next; |
1418c83b | 1425 | char *name; |
075d7359 | 1426 | } ldlang_undef_chain_list_type; |
1418c83b SC |
1427 | |
1428 | static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head; | |
1429 | ||
1430 | void | |
8ddef552 DM |
1431 | ldlang_add_undef (name) |
1432 | CONST char *CONST name; | |
2fa0b342 | 1433 | { |
1418c83b | 1434 | ldlang_undef_chain_list_type *new = |
1d169acc ILT |
1435 | ((ldlang_undef_chain_list_type *) |
1436 | stat_alloc (sizeof (ldlang_undef_chain_list_type))); | |
1418c83b SC |
1437 | |
1438 | new->next = ldlang_undef_chain_list_head; | |
1439 | ldlang_undef_chain_list_head = new; | |
1440 | ||
075d7359 | 1441 | new->name = buystring (name); |
1418c83b | 1442 | } |
075d7359 | 1443 | |
1418c83b SC |
1444 | /* Run through the list of undefineds created above and place them |
1445 | into the linker hash table as undefined symbols belonging to the | |
1446 | script file. | |
1447 | */ | |
1448 | static void | |
8ddef552 | 1449 | lang_place_undefineds () |
1418c83b | 1450 | { |
c477527c | 1451 | ldlang_undef_chain_list_type *ptr; |
1418c83b | 1452 | |
c477527c ILT |
1453 | for (ptr = ldlang_undef_chain_list_head; |
1454 | ptr != (ldlang_undef_chain_list_type *) NULL; | |
1455 | ptr = ptr->next) | |
075d7359 | 1456 | { |
c477527c | 1457 | struct bfd_link_hash_entry *h; |
075d7359 | 1458 | |
c477527c ILT |
1459 | h = bfd_link_hash_lookup (link_info.hash, ptr->name, true, false, true); |
1460 | if (h == (struct bfd_link_hash_entry *) NULL) | |
9f19768a | 1461 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); |
c477527c ILT |
1462 | if (h->type == bfd_link_hash_new) |
1463 | { | |
1464 | h->type = bfd_link_hash_undefined; | |
1465 | h->u.undef.abfd = NULL; | |
1466 | bfd_link_add_undef (link_info.hash, h); | |
1467 | } | |
075d7359 SC |
1468 | } |
1469 | } | |
1418c83b | 1470 | |
2fa0b342 DHW |
1471 | /* Open input files and attatch to output sections */ |
1472 | static void | |
8ddef552 DM |
1473 | map_input_to_output_sections (s, target, output_section_statement) |
1474 | lang_statement_union_type * s; | |
1475 | CONST char *target; | |
1476 | lang_output_section_statement_type * output_section_statement; | |
2fa0b342 | 1477 | { |
075d7359 | 1478 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
2fa0b342 | 1479 | { |
075d7359 | 1480 | switch (s->header.type) |
2fa0b342 | 1481 | { |
075d7359 SC |
1482 | |
1483 | ||
1484 | case lang_wild_statement_enum: | |
1485 | wild (&s->wild_statement, s->wild_statement.section_name, | |
1486 | s->wild_statement.filename, target, | |
1487 | output_section_statement); | |
1488 | ||
1489 | break; | |
1490 | case lang_constructors_statement_enum: | |
1491 | map_input_to_output_sections (constructor_list.head, | |
1492 | target, | |
1493 | output_section_statement); | |
1494 | break; | |
1495 | case lang_output_section_statement_enum: | |
1496 | map_input_to_output_sections (s->output_section_statement.children.head, | |
1497 | target, | |
1498 | &s->output_section_statement); | |
1499 | break; | |
1500 | case lang_output_statement_enum: | |
1501 | break; | |
1502 | case lang_target_statement_enum: | |
1503 | target = s->target_statement.target; | |
1504 | break; | |
309c8153 ILT |
1505 | case lang_group_statement_enum: |
1506 | map_input_to_output_sections (s->group_statement.children.head, | |
1507 | target, | |
1508 | output_section_statement); | |
1509 | break; | |
075d7359 SC |
1510 | case lang_fill_statement_enum: |
1511 | case lang_input_section_enum: | |
1512 | case lang_object_symbols_statement_enum: | |
1513 | case lang_data_statement_enum: | |
4fdbafb2 | 1514 | case lang_reloc_statement_enum: |
075d7359 | 1515 | case lang_padding_statement_enum: |
f9d3d71a ILT |
1516 | case lang_input_statement_enum: |
1517 | if (output_section_statement != NULL | |
1518 | && output_section_statement->bfd_section == NULL) | |
1519 | init_os (output_section_statement); | |
075d7359 | 1520 | break; |
86bc0974 ILT |
1521 | case lang_assignment_statement_enum: |
1522 | if (output_section_statement != NULL | |
1523 | && output_section_statement->bfd_section == NULL) | |
1524 | init_os (output_section_statement); | |
1525 | ||
1526 | /* Make sure that any sections mentioned in the assignment | |
1527 | are initialized. */ | |
1528 | exp_init_os (s->assignment_statement.exp); | |
1529 | break; | |
075d7359 SC |
1530 | case lang_afile_asection_pair_statement_enum: |
1531 | FAIL (); | |
1532 | break; | |
1533 | case lang_address_statement_enum: | |
1534 | /* Mark the specified section with the supplied address */ | |
1535 | { | |
1536 | lang_output_section_statement_type *os = | |
ef01a8a8 ILT |
1537 | lang_output_section_statement_lookup |
1538 | (s->address_statement.section_name); | |
075d7359 | 1539 | |
ef01a8a8 ILT |
1540 | if (os->bfd_section == NULL) |
1541 | init_os (os); | |
075d7359 | 1542 | os->addr_tree = s->address_statement.address; |
48491e2e | 1543 | } |
075d7359 | 1544 | break; |
2fa0b342 | 1545 | } |
2fa0b342 DHW |
1546 | } |
1547 | } | |
1548 | ||
075d7359 | 1549 | static void |
8ddef552 DM |
1550 | print_output_section_statement (output_section_statement) |
1551 | lang_output_section_statement_type * output_section_statement; | |
2fa0b342 DHW |
1552 | { |
1553 | asection *section = output_section_statement->bfd_section; | |
0cacbcbe | 1554 | int len; |
075d7359 | 1555 | |
0cacbcbe ILT |
1556 | if (output_section_statement != abs_output_section) |
1557 | { | |
1558 | minfo ("\n%s", output_section_statement->name); | |
075d7359 | 1559 | |
0cacbcbe ILT |
1560 | if (section != NULL) |
1561 | { | |
1562 | print_dot = section->vma; | |
e20873a7 | 1563 | |
0cacbcbe ILT |
1564 | len = strlen (output_section_statement->name); |
1565 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
1566 | { | |
1567 | print_nl (); | |
1568 | len = 0; | |
1569 | } | |
1570 | while (len < SECTION_NAME_MAP_LENGTH) | |
1571 | { | |
1572 | print_space (); | |
1573 | ++len; | |
1574 | } | |
2fa0b342 | 1575 | |
0cacbcbe ILT |
1576 | minfo ("0x%V %W", section->vma, section->_raw_size); |
1577 | ||
1578 | if (output_section_statement->load_base != NULL) | |
1579 | { | |
1580 | bfd_vma addr; | |
1581 | ||
1582 | addr = exp_get_abs_int (output_section_statement->load_base, 0, | |
1583 | "load base", lang_final_phase_enum); | |
1584 | minfo (" load address 0x%V", addr); | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | print_nl (); | |
e20873a7 | 1589 | } |
0cacbcbe | 1590 | |
708f7fbc ILT |
1591 | print_statement_list (output_section_statement->children.head, |
1592 | output_section_statement); | |
2fa0b342 DHW |
1593 | } |
1594 | ||
075d7359 | 1595 | static void |
8ddef552 DM |
1596 | print_assignment (assignment, output_section) |
1597 | lang_assignment_statement_type * assignment; | |
1598 | lang_output_section_statement_type * output_section; | |
2fa0b342 | 1599 | { |
0cacbcbe | 1600 | int i; |
2fa0b342 | 1601 | etree_value_type result; |
075d7359 | 1602 | |
0cacbcbe ILT |
1603 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) |
1604 | print_space (); | |
075d7359 | 1605 | |
0cacbcbe ILT |
1606 | result = exp_fold_tree (assignment->exp->assign.src, output_section, |
1607 | lang_final_phase_enum, print_dot, &print_dot); | |
075d7359 | 1608 | if (result.valid) |
0cacbcbe | 1609 | minfo ("0x%V", result.value + result.section->bfd_section->vma); |
075d7359 SC |
1610 | else |
1611 | { | |
0cacbcbe ILT |
1612 | minfo ("*undef* "); |
1613 | #ifdef BFD64 | |
1614 | minfo (" "); | |
1615 | #endif | |
075d7359 | 1616 | } |
0cacbcbe ILT |
1617 | |
1618 | minfo (" "); | |
1619 | ||
075d7359 SC |
1620 | exp_print_tree (assignment->exp); |
1621 | ||
0cacbcbe | 1622 | print_nl (); |
2fa0b342 DHW |
1623 | } |
1624 | ||
1625 | static void | |
8ddef552 DM |
1626 | print_input_statement (statm) |
1627 | lang_input_statement_type * statm; | |
2fa0b342 | 1628 | { |
075d7359 SC |
1629 | if (statm->filename != (char *) NULL) |
1630 | { | |
1631 | fprintf (config.map_file, "LOAD %s\n", statm->filename); | |
1632 | } | |
2fa0b342 DHW |
1633 | } |
1634 | ||
0cacbcbe ILT |
1635 | /* Print all symbols defined in a particular section. This is called |
1636 | via bfd_link_hash_traverse. */ | |
804c8601 SC |
1637 | |
1638 | static boolean | |
1639 | print_one_symbol (hash_entry, ptr) | |
0cacbcbe ILT |
1640 | struct bfd_link_hash_entry *hash_entry; |
1641 | PTR ptr; | |
2fa0b342 | 1642 | { |
0cacbcbe | 1643 | asection *sec = (asection *) ptr; |
804c8601 | 1644 | |
0cacbcbe ILT |
1645 | if ((hash_entry->type == bfd_link_hash_defined |
1646 | || hash_entry->type == bfd_link_hash_defweak) | |
1647 | && sec == hash_entry->u.def.section) | |
804c8601 | 1648 | { |
0cacbcbe ILT |
1649 | int i; |
1650 | ||
1651 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
1652 | print_space (); | |
1653 | minfo ("0x%V ", | |
1654 | (hash_entry->u.def.value | |
1655 | + hash_entry->u.def.section->output_offset | |
1656 | + hash_entry->u.def.section->output_section->vma)); | |
1657 | ||
1658 | minfo (" %T\n", hash_entry->root.string); | |
804c8601 | 1659 | } |
09a5aa5e KR |
1660 | |
1661 | return true; | |
2fa0b342 | 1662 | } |
1418c83b | 1663 | |
0cacbcbe ILT |
1664 | /* Print information about an input section to the map file. */ |
1665 | ||
075d7359 | 1666 | static void |
8ddef552 DM |
1667 | print_input_section (in) |
1668 | lang_input_section_type * in; | |
2fa0b342 DHW |
1669 | { |
1670 | asection *i = in->section; | |
f078dc7c | 1671 | bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size; |
1418c83b | 1672 | |
075d7359 SC |
1673 | if (size != 0) |
1674 | { | |
0cacbcbe ILT |
1675 | print_space (); |
1676 | ||
1677 | minfo ("%s", i->name); | |
1678 | ||
1679 | if (i->output_section != NULL) | |
075d7359 | 1680 | { |
0cacbcbe | 1681 | int len; |
2fa0b342 | 1682 | |
0cacbcbe ILT |
1683 | len = 1 + strlen (i->name); |
1684 | if (len >= SECTION_NAME_MAP_LENGTH - 1) | |
1685 | { | |
1686 | print_nl (); | |
1687 | len = 0; | |
1688 | } | |
1689 | while (len < SECTION_NAME_MAP_LENGTH) | |
1690 | { | |
1691 | print_space (); | |
1692 | ++len; | |
1693 | } | |
2fa0b342 | 1694 | |
0cacbcbe ILT |
1695 | minfo ("0x%V %W %B\n", |
1696 | i->output_section->vma + i->output_offset, size, | |
1697 | i->owner); | |
2fa0b342 | 1698 | |
0cacbcbe ILT |
1699 | if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size) |
1700 | { | |
1701 | len = SECTION_NAME_MAP_LENGTH + 3; | |
1702 | #ifdef BFD64 | |
1703 | len += 16; | |
1704 | #else | |
1705 | len += 8; | |
1706 | #endif | |
1707 | while (len > 0) | |
075d7359 | 1708 | { |
0cacbcbe ILT |
1709 | print_space (); |
1710 | --len; | |
075d7359 | 1711 | } |
2fa0b342 | 1712 | |
0cacbcbe | 1713 | minfo ("%W (size before relaxing)\n", i->_raw_size); |
075d7359 SC |
1714 | } |
1715 | ||
0cacbcbe | 1716 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i); |
075d7359 | 1717 | |
0cacbcbe | 1718 | print_dot = i->output_section->vma + i->output_offset + size; |
075d7359 SC |
1719 | } |
1720 | } | |
1721 | } | |
2fa0b342 DHW |
1722 | |
1723 | static void | |
8ddef552 DM |
1724 | print_fill_statement (fill) |
1725 | lang_fill_statement_type * fill; | |
075d7359 | 1726 | { |
0cacbcbe | 1727 | fprintf (config.map_file, " FILL mask 0x%x\n", fill->fill); |
075d7359 SC |
1728 | } |
1729 | ||
1730 | static void | |
8ddef552 DM |
1731 | print_data_statement (data) |
1732 | lang_data_statement_type * data; | |
2fa0b342 | 1733 | { |
0cacbcbe ILT |
1734 | int i; |
1735 | bfd_vma addr; | |
1736 | bfd_size_type size; | |
1737 | const char *name; | |
1738 | ||
1739 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
1740 | print_space (); | |
1741 | ||
1742 | addr = data->output_vma; | |
1743 | if (data->output_section != NULL) | |
1744 | addr += data->output_section->vma; | |
2fa0b342 | 1745 | |
075d7359 SC |
1746 | switch (data->type) |
1747 | { | |
0cacbcbe ILT |
1748 | default: |
1749 | abort (); | |
075d7359 | 1750 | case BYTE: |
0cacbcbe ILT |
1751 | size = BYTE_SIZE; |
1752 | name = "BYTE"; | |
075d7359 SC |
1753 | break; |
1754 | case SHORT: | |
0cacbcbe ILT |
1755 | size = SHORT_SIZE; |
1756 | name = "SHORT"; | |
075d7359 SC |
1757 | break; |
1758 | case LONG: | |
0cacbcbe ILT |
1759 | size = LONG_SIZE; |
1760 | name = "LONG"; | |
075d7359 | 1761 | break; |
c477527c | 1762 | case QUAD: |
0cacbcbe ILT |
1763 | size = QUAD_SIZE; |
1764 | name = "QUAD"; | |
c477527c | 1765 | break; |
9f19768a ILT |
1766 | case SQUAD: |
1767 | size = QUAD_SIZE; | |
1768 | name = "SQUAD"; | |
1769 | break; | |
075d7359 SC |
1770 | } |
1771 | ||
0cacbcbe ILT |
1772 | minfo ("0x%V %W %s 0x%v", addr, size, name, data->value); |
1773 | ||
1774 | if (data->exp->type.node_class != etree_value) | |
1775 | { | |
1776 | print_space (); | |
1777 | exp_print_tree (data->exp); | |
1778 | } | |
1779 | ||
1780 | print_nl (); | |
1781 | ||
1782 | print_dot = addr + size; | |
1783 | } | |
1784 | ||
1785 | /* Print an address statement. These are generated by options like | |
1786 | -Ttext. */ | |
2fa0b342 | 1787 | |
0cacbcbe ILT |
1788 | static void |
1789 | print_address_statement (address) | |
1790 | lang_address_statement_type *address; | |
1791 | { | |
1792 | minfo ("Address of section %s set to ", address->section_name); | |
1793 | exp_print_tree (address->address); | |
1794 | print_nl (); | |
2fa0b342 DHW |
1795 | } |
1796 | ||
4fdbafb2 ILT |
1797 | /* Print a reloc statement. */ |
1798 | ||
1799 | static void | |
1800 | print_reloc_statement (reloc) | |
1801 | lang_reloc_statement_type *reloc; | |
1802 | { | |
0cacbcbe ILT |
1803 | int i; |
1804 | bfd_vma addr; | |
1805 | bfd_size_type size; | |
1806 | ||
1807 | for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++) | |
1808 | print_space (); | |
4fdbafb2 | 1809 | |
0cacbcbe ILT |
1810 | addr = reloc->output_vma; |
1811 | if (reloc->output_section != NULL) | |
1812 | addr += reloc->output_section->vma; | |
4fdbafb2 | 1813 | |
0cacbcbe | 1814 | size = bfd_get_reloc_size (reloc->howto); |
4fdbafb2 | 1815 | |
0cacbcbe | 1816 | minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name); |
4fdbafb2 | 1817 | |
0cacbcbe ILT |
1818 | if (reloc->name != NULL) |
1819 | minfo ("%s+", reloc->name); | |
1820 | else | |
1821 | minfo ("%s+", reloc->section->name); | |
4fdbafb2 ILT |
1822 | |
1823 | exp_print_tree (reloc->addend_exp); | |
1824 | ||
0cacbcbe ILT |
1825 | print_nl (); |
1826 | ||
1827 | print_dot = addr + size; | |
4fdbafb2 | 1828 | } |
2fa0b342 DHW |
1829 | |
1830 | static void | |
8ddef552 | 1831 | print_padding_statement (s) |
0cacbcbe | 1832 | lang_padding_statement_type *s; |
075d7359 | 1833 | { |
0cacbcbe ILT |
1834 | int len; |
1835 | bfd_vma addr; | |
1836 | ||
1837 | minfo (" *fill*"); | |
1838 | ||
1839 | len = sizeof " *fill*" - 1; | |
1840 | while (len < SECTION_NAME_MAP_LENGTH) | |
1841 | { | |
1842 | print_space (); | |
1843 | ++len; | |
1844 | } | |
1845 | ||
1846 | addr = s->output_offset; | |
1847 | if (s->output_section != NULL) | |
1848 | addr += s->output_section->vma; | |
1849 | minfo ("0x%V %W", addr, s->size); | |
1850 | ||
1851 | if (s->fill != 0) | |
86bc0974 | 1852 | minfo (" %u", s->fill); |
0cacbcbe | 1853 | |
075d7359 | 1854 | print_nl (); |
ffc50032 | 1855 | |
0cacbcbe | 1856 | print_dot = addr + s->size; |
2fa0b342 DHW |
1857 | } |
1858 | ||
075d7359 | 1859 | static void |
8ddef552 DM |
1860 | print_wild_statement (w, os) |
1861 | lang_wild_statement_type * w; | |
1862 | lang_output_section_statement_type * os; | |
2fa0b342 | 1863 | { |
0cacbcbe ILT |
1864 | print_space (); |
1865 | ||
1866 | if (w->filename != NULL) | |
1867 | minfo ("%s", w->filename); | |
075d7359 | 1868 | else |
0cacbcbe ILT |
1869 | minfo ("*"); |
1870 | ||
1871 | if (w->section_name != NULL) | |
1872 | minfo ("(%s)", w->section_name); | |
075d7359 | 1873 | else |
0cacbcbe ILT |
1874 | minfo ("(*)"); |
1875 | ||
075d7359 | 1876 | print_nl (); |
2fa0b342 | 1877 | |
0cacbcbe | 1878 | print_statement_list (w->children.head, os); |
2fa0b342 | 1879 | } |
309c8153 ILT |
1880 | |
1881 | /* Print a group statement. */ | |
1882 | ||
1883 | static void | |
1884 | print_group (s, os) | |
1885 | lang_group_statement_type *s; | |
1886 | lang_output_section_statement_type *os; | |
1887 | { | |
1888 | fprintf (config.map_file, "START GROUP\n"); | |
708f7fbc | 1889 | print_statement_list (s->children.head, os); |
309c8153 ILT |
1890 | fprintf (config.map_file, "END GROUP\n"); |
1891 | } | |
1892 | ||
708f7fbc ILT |
1893 | /* Print the list of statements in S. |
1894 | This can be called for any statement type. */ | |
1895 | ||
2fa0b342 | 1896 | static void |
708f7fbc | 1897 | print_statement_list (s, os) |
0cacbcbe ILT |
1898 | lang_statement_union_type *s; |
1899 | lang_output_section_statement_type *os; | |
2fa0b342 | 1900 | { |
0cacbcbe | 1901 | while (s != NULL) |
c611e285 | 1902 | { |
708f7fbc | 1903 | print_statement (s, os); |
075d7359 | 1904 | s = s->next; |
2fa0b342 | 1905 | } |
2fa0b342 DHW |
1906 | } |
1907 | ||
708f7fbc ILT |
1908 | /* Print the first statement in statement list S. |
1909 | This can be called for any statement type. */ | |
1910 | ||
1911 | static void | |
1912 | print_statement (s, os) | |
0cacbcbe ILT |
1913 | lang_statement_union_type *s; |
1914 | lang_output_section_statement_type *os; | |
708f7fbc ILT |
1915 | { |
1916 | switch (s->header.type) | |
1917 | { | |
0cacbcbe ILT |
1918 | default: |
1919 | fprintf (config.map_file, "Fail with %d\n", s->header.type); | |
1920 | FAIL (); | |
1921 | break; | |
708f7fbc | 1922 | case lang_constructors_statement_enum: |
0cacbcbe ILT |
1923 | if (constructor_list.head != NULL) |
1924 | { | |
1925 | minfo (" CONSTRUCTORS\n"); | |
1926 | print_statement_list (constructor_list.head, os); | |
1927 | } | |
708f7fbc ILT |
1928 | break; |
1929 | case lang_wild_statement_enum: | |
1930 | print_wild_statement (&s->wild_statement, os); | |
1931 | break; | |
708f7fbc | 1932 | case lang_address_statement_enum: |
0cacbcbe | 1933 | print_address_statement (&s->address_statement); |
708f7fbc ILT |
1934 | break; |
1935 | case lang_object_symbols_statement_enum: | |
0cacbcbe | 1936 | minfo (" CREATE_OBJECT_SYMBOLS\n"); |
708f7fbc ILT |
1937 | break; |
1938 | case lang_fill_statement_enum: | |
1939 | print_fill_statement (&s->fill_statement); | |
1940 | break; | |
1941 | case lang_data_statement_enum: | |
1942 | print_data_statement (&s->data_statement); | |
1943 | break; | |
1944 | case lang_reloc_statement_enum: | |
1945 | print_reloc_statement (&s->reloc_statement); | |
1946 | break; | |
1947 | case lang_input_section_enum: | |
1948 | print_input_section (&s->input_section); | |
1949 | break; | |
1950 | case lang_padding_statement_enum: | |
1951 | print_padding_statement (&s->padding_statement); | |
1952 | break; | |
1953 | case lang_output_section_statement_enum: | |
1954 | print_output_section_statement (&s->output_section_statement); | |
1955 | break; | |
1956 | case lang_assignment_statement_enum: | |
0cacbcbe | 1957 | print_assignment (&s->assignment_statement, os); |
708f7fbc ILT |
1958 | break; |
1959 | case lang_target_statement_enum: | |
1960 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
1961 | break; | |
1962 | case lang_output_statement_enum: | |
0cacbcbe ILT |
1963 | minfo ("OUTPUT(%s", s->output_statement.name); |
1964 | if (output_target != NULL) | |
1965 | minfo (" %s", output_target); | |
1966 | minfo (")\n"); | |
708f7fbc ILT |
1967 | break; |
1968 | case lang_input_statement_enum: | |
1969 | print_input_statement (&s->input_statement); | |
1970 | break; | |
1971 | case lang_group_statement_enum: | |
1972 | print_group (&s->group_statement, os); | |
1973 | break; | |
1974 | case lang_afile_asection_pair_statement_enum: | |
1975 | FAIL (); | |
1976 | break; | |
1977 | } | |
1978 | } | |
1979 | ||
2fa0b342 | 1980 | static void |
8ddef552 | 1981 | print_statements () |
2fa0b342 | 1982 | { |
0cacbcbe | 1983 | print_statement_list (statement_list.head, abs_output_section); |
2fa0b342 DHW |
1984 | } |
1985 | ||
708f7fbc ILT |
1986 | /* Print the first N statements in statement list S to STDERR. |
1987 | If N == 0, nothing is printed. | |
1988 | If N < 0, the entire list is printed. | |
1989 | Intended to be called from GDB. */ | |
1990 | ||
1991 | void | |
1992 | dprint_statement (s, n) | |
1993 | lang_statement_union_type * s; | |
1994 | int n; | |
1995 | { | |
1996 | FILE *map_save = config.map_file; | |
1997 | ||
1998 | config.map_file = stderr; | |
1999 | ||
2000 | if (n < 0) | |
2001 | print_statement_list (s, abs_output_section); | |
2002 | else | |
2003 | { | |
86bc0974 | 2004 | while (s && --n >= 0) |
708f7fbc ILT |
2005 | { |
2006 | print_statement (s, abs_output_section); | |
2007 | s = s->next; | |
2008 | } | |
2009 | } | |
2010 | ||
2011 | config.map_file = map_save; | |
2012 | } | |
2013 | ||
2fa0b342 | 2014 | static bfd_vma |
9f629407 ILT |
2015 | insert_pad (this_ptr, fill, power, output_section_statement, dot) |
2016 | lang_statement_union_type ** this_ptr; | |
2017 | fill_type fill; | |
2018 | unsigned int power; | |
2019 | asection * output_section_statement; | |
2020 | bfd_vma dot; | |
075d7359 SC |
2021 | { |
2022 | /* Align this section first to the | |
2fa0b342 DHW |
2023 | input sections requirement, then |
2024 | to the output section's requirement. | |
075d7359 | 2025 | If this alignment is > than any seen before, |
2fa0b342 DHW |
2026 | then record it too. Perform the alignment by |
2027 | inserting a magic 'padding' statement. | |
2028 | */ | |
2029 | ||
075d7359 | 2030 | unsigned int alignment_needed = align_power (dot, power) - dot; |
2fa0b342 | 2031 | |
075d7359 | 2032 | if (alignment_needed != 0) |
2fa0b342 | 2033 | { |
075d7359 | 2034 | lang_statement_union_type *new = |
1d169acc ILT |
2035 | ((lang_statement_union_type *) |
2036 | stat_alloc (sizeof (lang_padding_statement_type))); | |
075d7359 | 2037 | |
2fa0b342 DHW |
2038 | /* Link into existing chain */ |
2039 | new->header.next = *this_ptr; | |
2040 | *this_ptr = new; | |
2041 | new->header.type = lang_padding_statement_enum; | |
2042 | new->padding_statement.output_section = output_section_statement; | |
2043 | new->padding_statement.output_offset = | |
2044 | dot - output_section_statement->vma; | |
2045 | new->padding_statement.fill = fill; | |
2046 | new->padding_statement.size = alignment_needed; | |
2047 | } | |
2048 | ||
2049 | ||
2050 | /* Remember the most restrictive alignment */ | |
075d7359 SC |
2051 | if (power > output_section_statement->alignment_power) |
2052 | { | |
2053 | output_section_statement->alignment_power = power; | |
2054 | } | |
c611e285 | 2055 | output_section_statement->_raw_size += alignment_needed; |
2fa0b342 DHW |
2056 | return alignment_needed + dot; |
2057 | ||
2058 | } | |
2059 | ||
1418c83b | 2060 | /* Work out how much this section will move the dot point */ |
075d7359 | 2061 | static bfd_vma |
9f629407 ILT |
2062 | size_input_section (this_ptr, output_section_statement, fill, dot, relax) |
2063 | lang_statement_union_type ** this_ptr; | |
2064 | lang_output_section_statement_type * output_section_statement; | |
c477527c | 2065 | fill_type fill; |
9f629407 ILT |
2066 | bfd_vma dot; |
2067 | boolean relax; | |
2fa0b342 DHW |
2068 | { |
2069 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
2070 | asection *i = is->section; | |
2fa0b342 | 2071 | |
075d7359 SC |
2072 | if (is->ifile->just_syms_flag == false) |
2073 | { | |
e20873a7 JG |
2074 | if (output_section_statement->subsection_alignment != -1) |
2075 | i->alignment_power = | |
2076 | output_section_statement->subsection_alignment; | |
2077 | ||
075d7359 SC |
2078 | dot = insert_pad (this_ptr, fill, i->alignment_power, |
2079 | output_section_statement->bfd_section, dot); | |
2080 | ||
075d7359 | 2081 | /* Remember where in the output section this input section goes */ |
ac004870 | 2082 | |
075d7359 SC |
2083 | i->output_offset = dot - output_section_statement->bfd_section->vma; |
2084 | ||
ae475b39 SC |
2085 | /* Mark how big the output section must be to contain this now |
2086 | */ | |
f078dc7c ILT |
2087 | if (i->_cooked_size != 0) |
2088 | dot += i->_cooked_size; | |
ae475b39 | 2089 | else |
f078dc7c | 2090 | dot += i->_raw_size; |
ae475b39 | 2091 | output_section_statement->bfd_section->_raw_size = dot - output_section_statement->bfd_section->vma; |
075d7359 | 2092 | } |
ac004870 | 2093 | else |
075d7359 SC |
2094 | { |
2095 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
2096 | } | |
2fa0b342 | 2097 | |
075d7359 | 2098 | return dot; |
2fa0b342 DHW |
2099 | } |
2100 | ||
193c5f93 ILT |
2101 | /* This variable indicates whether bfd_relax_section should be called |
2102 | again. */ | |
2103 | ||
2104 | static boolean relax_again; | |
2105 | ||
2106 | /* Set the sizes for all the output sections. */ | |
c611e285 | 2107 | |
a62494c4 | 2108 | bfd_vma |
9f629407 ILT |
2109 | lang_size_sections (s, output_section_statement, prev, fill, dot, relax) |
2110 | lang_statement_union_type * s; | |
2111 | lang_output_section_statement_type * output_section_statement; | |
2112 | lang_statement_union_type ** prev; | |
c477527c | 2113 | fill_type fill; |
9f629407 ILT |
2114 | bfd_vma dot; |
2115 | boolean relax; | |
c611e285 SC |
2116 | { |
2117 | /* Size up the sections from their constituent parts */ | |
075d7359 | 2118 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
ae475b39 SC |
2119 | { |
2120 | switch (s->header.type) | |
075d7359 | 2121 | { |
c611e285 | 2122 | |
ae475b39 SC |
2123 | case lang_output_section_statement_enum: |
2124 | { | |
2125 | bfd_vma after; | |
2126 | lang_output_section_statement_type *os = &s->output_section_statement; | |
2127 | ||
f9d3d71a ILT |
2128 | if (os->bfd_section == NULL) |
2129 | { | |
2130 | /* This section was never actually created. */ | |
2131 | break; | |
2132 | } | |
2133 | ||
27f7237e ILT |
2134 | /* If this is a COFF shared library section, use the size and |
2135 | address from the input section. FIXME: This is COFF | |
2136 | specific; it would be cleaner if there were some other way | |
2137 | to do this, but nothing simple comes to mind. */ | |
2138 | if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
2139 | { | |
2140 | asection *input; | |
2141 | ||
2142 | if (os->children.head == NULL | |
2143 | || os->children.head->next != NULL | |
2144 | || os->children.head->header.type != lang_input_section_enum) | |
9f19768a | 2145 | einfo ("%P%X: Internal error on COFF shared library section %s\n", |
27f7237e ILT |
2146 | os->name); |
2147 | ||
2148 | input = os->children.head->input_section.section; | |
2149 | bfd_set_section_vma (os->bfd_section->owner, | |
2150 | os->bfd_section, | |
2151 | bfd_section_vma (input->owner, input)); | |
2152 | os->bfd_section->_raw_size = input->_raw_size; | |
2153 | break; | |
2154 | } | |
e9b63852 | 2155 | |
686739e2 | 2156 | if (bfd_is_abs_section (os->bfd_section)) |
ae475b39 SC |
2157 | { |
2158 | /* No matter what happens, an abs section starts at zero */ | |
686739e2 | 2159 | ASSERT (os->bfd_section->vma == 0); |
ae475b39 SC |
2160 | } |
2161 | else | |
2162 | { | |
2163 | if (os->addr_tree == (etree_type *) NULL) | |
2164 | { | |
2165 | /* No address specified for this section, get one | |
2166 | from the region specification | |
2167 | */ | |
2168 | if (os->region == (lang_memory_region_type *) NULL) | |
2169 | { | |
d3c324e5 | 2170 | os->region = lang_memory_default (os->bfd_section); |
ae475b39 SC |
2171 | } |
2172 | dot = os->region->current; | |
feaa9c4b | 2173 | if (os->section_alignment == -1) |
c5a0d31a ILT |
2174 | { |
2175 | bfd_vma olddot; | |
2176 | ||
2177 | olddot = dot; | |
2178 | dot = align_power (dot, os->bfd_section->alignment_power); | |
2179 | if (dot != olddot && config.warn_section_align) | |
2180 | einfo ("%P: warning: changing start of section %s by %u bytes\n", | |
2181 | os->name, (unsigned int) (dot - olddot)); | |
2182 | } | |
ae475b39 SC |
2183 | } |
2184 | else | |
2185 | { | |
2186 | etree_value_type r; | |
2187 | ||
2188 | r = exp_fold_tree (os->addr_tree, | |
2189 | abs_output_section, | |
2190 | lang_allocating_phase_enum, | |
2191 | dot, &dot); | |
2192 | if (r.valid == false) | |
2193 | { | |
2194 | einfo ("%F%S: non constant address expression for section %s\n", | |
2195 | os->name); | |
2196 | } | |
72df7117 | 2197 | dot = r.value + r.section->bfd_section->vma; |
ae475b39 SC |
2198 | } |
2199 | /* The section starts here */ | |
2200 | /* First, align to what the section needs */ | |
2201 | ||
a62494c4 JL |
2202 | if (os->section_alignment != -1) |
2203 | dot = align_power (dot, os->section_alignment); | |
ae475b39 | 2204 | |
ae475b39 | 2205 | bfd_set_section_vma (0, os->bfd_section, dot); |
9fce28ed | 2206 | |
686739e2 ILT |
2207 | os->bfd_section->output_offset = 0; |
2208 | } | |
ae475b39 SC |
2209 | |
2210 | (void) lang_size_sections (os->children.head, os, &os->children.head, | |
2211 | os->fill, dot, relax); | |
2212 | /* Ignore the size of the input sections, use the vma and size to */ | |
2213 | /* align against */ | |
2214 | ||
8ddef552 | 2215 | after = ALIGN_N (os->bfd_section->vma + |
97fbbaca JL |
2216 | os->bfd_section->_raw_size, |
2217 | /* The coercion here is important, see ld.h. */ | |
2218 | (bfd_vma) os->block_value); | |
ae475b39 | 2219 | |
686739e2 ILT |
2220 | if (bfd_is_abs_section (os->bfd_section)) |
2221 | ASSERT (after == os->bfd_section->vma); | |
2222 | else | |
2223 | os->bfd_section->_raw_size = after - os->bfd_section->vma; | |
ae475b39 SC |
2224 | dot = os->bfd_section->vma + os->bfd_section->_raw_size; |
2225 | os->processed = true; | |
2226 | ||
2227 | /* Replace into region ? */ | |
686739e2 | 2228 | if (os->region != (lang_memory_region_type *) NULL) |
e802f0be DE |
2229 | { |
2230 | os->region->current = dot; | |
2231 | /* Make sure this isn't silly. */ | |
09328690 ILT |
2232 | if (os->region->current < os->region->origin |
2233 | || (os->region->current - os->region->origin | |
2234 | > os->region->length)) | |
e802f0be DE |
2235 | { |
2236 | if (os->addr_tree != (etree_type *) NULL) | |
2237 | { | |
2238 | einfo ("%X%P: address 0x%v of %B section %s is not within region %s\n", | |
2239 | os->region->current, | |
2240 | os->bfd_section->owner, | |
2241 | os->bfd_section->name, | |
2242 | os->region->name); | |
2243 | } | |
2244 | else | |
2245 | { | |
2246 | einfo ("%X%P: region %s is full (%B section %s)\n", | |
2247 | os->region->name, | |
2248 | os->bfd_section->owner, | |
2249 | os->bfd_section->name); | |
2250 | } | |
2251 | /* Reset the region pointer. */ | |
2252 | os->region->current = os->region->origin; | |
2253 | } | |
2254 | } | |
ae475b39 | 2255 | } |
e802f0be | 2256 | break; |
9d1fe8a4 | 2257 | |
ae475b39 SC |
2258 | case lang_constructors_statement_enum: |
2259 | dot = lang_size_sections (constructor_list.head, | |
2260 | output_section_statement, | |
2261 | &s->wild_statement.children.head, | |
2262 | fill, | |
2263 | dot, relax); | |
2264 | break; | |
9d1fe8a4 | 2265 | |
ae475b39 SC |
2266 | case lang_data_statement_enum: |
2267 | { | |
2268 | unsigned int size = 0; | |
2269 | ||
2270 | s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma; | |
2271 | s->data_statement.output_section = | |
2272 | output_section_statement->bfd_section; | |
2273 | ||
2274 | switch (s->data_statement.type) | |
9f19768a ILT |
2275 | { |
2276 | case QUAD: | |
2277 | case SQUAD: | |
2278 | size = QUAD_SIZE; | |
2279 | break; | |
2280 | case LONG: | |
2281 | size = LONG_SIZE; | |
2282 | break; | |
2283 | case SHORT: | |
2284 | size = SHORT_SIZE; | |
2285 | break; | |
2286 | case BYTE: | |
2287 | size = BYTE_SIZE; | |
2288 | break; | |
2289 | } | |
ae475b39 | 2290 | |
ae475b39 SC |
2291 | dot += size; |
2292 | output_section_statement->bfd_section->_raw_size += size; | |
36ea6198 ILT |
2293 | /* The output section gets contents, and then we inspect for |
2294 | any flags set in the input script which override any ALLOC */ | |
943fbd5b | 2295 | output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS; |
36ea6198 ILT |
2296 | if (!(output_section_statement->flags & SEC_NEVER_LOAD)) { |
2297 | output_section_statement->bfd_section->flags |= SEC_ALLOC | SEC_LOAD; | |
2298 | } | |
ae475b39 SC |
2299 | } |
2300 | break; | |
c611e285 | 2301 | |
4fdbafb2 ILT |
2302 | case lang_reloc_statement_enum: |
2303 | { | |
2304 | int size; | |
2305 | ||
2306 | s->reloc_statement.output_vma = | |
2307 | dot - output_section_statement->bfd_section->vma; | |
2308 | s->reloc_statement.output_section = | |
2309 | output_section_statement->bfd_section; | |
2310 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
2311 | dot += size; | |
2312 | output_section_statement->bfd_section->_raw_size += size; | |
2313 | } | |
2314 | break; | |
2315 | ||
ae475b39 | 2316 | case lang_wild_statement_enum: |
c611e285 | 2317 | |
ae475b39 SC |
2318 | dot = lang_size_sections (s->wild_statement.children.head, |
2319 | output_section_statement, | |
2320 | &s->wild_statement.children.head, | |
c611e285 | 2321 | |
ae475b39 | 2322 | fill, dot, relax); |
c611e285 | 2323 | |
ae475b39 | 2324 | break; |
c611e285 | 2325 | |
ae475b39 | 2326 | case lang_object_symbols_statement_enum: |
c477527c ILT |
2327 | link_info.create_object_symbols_section = |
2328 | output_section_statement->bfd_section; | |
ae475b39 SC |
2329 | break; |
2330 | case lang_output_statement_enum: | |
2331 | case lang_target_statement_enum: | |
2332 | break; | |
2333 | case lang_input_section_enum: | |
ae475b39 | 2334 | { |
c477527c ILT |
2335 | asection *i; |
2336 | ||
193c5f93 ILT |
2337 | i = (*prev)->input_section.section; |
2338 | if (! relax) | |
6799c638 ILT |
2339 | { |
2340 | if (i->_cooked_size == 0) | |
2341 | i->_cooked_size = i->_raw_size; | |
2342 | } | |
193c5f93 | 2343 | else |
755f42fe | 2344 | { |
193c5f93 | 2345 | boolean again; |
075d7359 | 2346 | |
193c5f93 ILT |
2347 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) |
2348 | einfo ("%P%F: can't relax section: %E\n"); | |
2349 | if (again) | |
2350 | relax_again = true; | |
2351 | } | |
2352 | dot = size_input_section (prev, | |
2353 | output_section_statement, | |
2354 | output_section_statement->fill, | |
2355 | dot, relax); | |
ae475b39 | 2356 | } |
ae475b39 SC |
2357 | break; |
2358 | case lang_input_statement_enum: | |
2359 | break; | |
2360 | case lang_fill_statement_enum: | |
2361 | s->fill_statement.output_section = output_section_statement->bfd_section; | |
075d7359 | 2362 | |
ae475b39 SC |
2363 | fill = s->fill_statement.fill; |
2364 | break; | |
2365 | case lang_assignment_statement_enum: | |
2366 | { | |
2367 | bfd_vma newdot = dot; | |
2368 | ||
2369 | exp_fold_tree (s->assignment_statement.exp, | |
2370 | output_section_statement, | |
2371 | lang_allocating_phase_enum, | |
2372 | dot, | |
2373 | &newdot); | |
2374 | ||
2375 | if (newdot != dot && !relax) | |
27f7237e ILT |
2376 | { |
2377 | /* The assignment changed dot. Insert a pad. */ | |
2378 | if (output_section_statement == abs_output_section) | |
2379 | { | |
2380 | /* If we don't have an output section, then just adjust | |
2381 | the default memory address. */ | |
2382 | lang_memory_region_lookup ("*default*")->current = newdot; | |
2383 | } | |
2384 | else | |
2385 | { | |
2386 | lang_statement_union_type *new = | |
2387 | ((lang_statement_union_type *) | |
2388 | stat_alloc (sizeof (lang_padding_statement_type))); | |
2389 | ||
2390 | /* Link into existing chain */ | |
2391 | new->header.next = *prev; | |
2392 | *prev = new; | |
2393 | new->header.type = lang_padding_statement_enum; | |
2394 | new->padding_statement.output_section = | |
2395 | output_section_statement->bfd_section; | |
2396 | new->padding_statement.output_offset = | |
2397 | dot - output_section_statement->bfd_section->vma; | |
2398 | new->padding_statement.fill = fill; | |
2399 | new->padding_statement.size = newdot - dot; | |
2400 | output_section_statement->bfd_section->_raw_size += | |
2401 | new->padding_statement.size; | |
2402 | } | |
2403 | ||
2404 | dot = newdot; | |
2405 | } | |
ae475b39 | 2406 | } |
27f7237e | 2407 | break; |
9d87af56 ILT |
2408 | |
2409 | case lang_padding_statement_enum: | |
2410 | /* If we are relaxing, and this is not the first pass, some | |
2411 | padding statements may have been inserted during previous | |
2412 | passes. We may have to move the padding statement to a new | |
2413 | location if dot has a different value at this point in this | |
2414 | pass than it did at this point in the previous pass. */ | |
2415 | s->padding_statement.output_offset = | |
2416 | dot - output_section_statement->bfd_section->vma; | |
2417 | dot += s->padding_statement.size; | |
708f7fbc ILT |
2418 | output_section_statement->bfd_section->_raw_size += |
2419 | s->padding_statement.size; | |
9d87af56 ILT |
2420 | break; |
2421 | ||
309c8153 ILT |
2422 | case lang_group_statement_enum: |
2423 | dot = lang_size_sections (s->group_statement.children.head, | |
2424 | output_section_statement, | |
2425 | &s->group_statement.children.head, | |
2426 | fill, dot, relax); | |
2427 | break; | |
2428 | ||
ae475b39 SC |
2429 | default: |
2430 | FAIL (); | |
2431 | break; | |
9d87af56 | 2432 | |
ae475b39 | 2433 | /* This can only get here when relaxing is turned on */ |
075d7359 | 2434 | |
ae475b39 SC |
2435 | case lang_address_statement_enum: |
2436 | break; | |
075d7359 | 2437 | } |
ae475b39 SC |
2438 | prev = &s->header.next; |
2439 | } | |
c611e285 SC |
2440 | return dot; |
2441 | } | |
9d1fe8a4 | 2442 | |
309c8153 | 2443 | bfd_vma |
9f629407 ILT |
2444 | lang_do_assignments (s, output_section_statement, fill, dot) |
2445 | lang_statement_union_type * s; | |
2446 | lang_output_section_statement_type * output_section_statement; | |
c477527c | 2447 | fill_type fill; |
9f629407 | 2448 | bfd_vma dot; |
2fa0b342 | 2449 | { |
075d7359 | 2450 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
2fa0b342 | 2451 | { |
075d7359 | 2452 | switch (s->header.type) |
2fa0b342 | 2453 | { |
075d7359 SC |
2454 | case lang_constructors_statement_enum: |
2455 | dot = lang_do_assignments (constructor_list.head, | |
2456 | output_section_statement, | |
2457 | fill, | |
2458 | dot); | |
2459 | break; | |
2460 | ||
2461 | case lang_output_section_statement_enum: | |
2462 | { | |
2463 | lang_output_section_statement_type *os = | |
269773c1 | 2464 | &(s->output_section_statement); |
2fa0b342 | 2465 | |
269773c1 ILT |
2466 | if (os->bfd_section != NULL) |
2467 | { | |
2468 | dot = os->bfd_section->vma; | |
2469 | (void) lang_do_assignments (os->children.head, os, | |
2470 | os->fill, dot); | |
2471 | dot = os->bfd_section->vma + os->bfd_section->_raw_size; | |
2472 | } | |
0b3499f6 ILT |
2473 | if (os->load_base) |
2474 | { | |
467a0380 SC |
2475 | /* If nothing has been placed into the output section then |
2476 | it won't have a bfd_section. */ | |
2477 | if (os->bfd_section) | |
2478 | { | |
2479 | os->bfd_section->lma | |
2480 | = exp_get_abs_int(os->load_base, 0,"load base", lang_final_phase_enum); | |
2481 | } | |
0b3499f6 | 2482 | } |
075d7359 SC |
2483 | } |
2484 | break; | |
2485 | case lang_wild_statement_enum: | |
2fa0b342 | 2486 | |
075d7359 SC |
2487 | dot = lang_do_assignments (s->wild_statement.children.head, |
2488 | output_section_statement, | |
2489 | fill, dot); | |
2fa0b342 | 2490 | |
075d7359 SC |
2491 | break; |
2492 | ||
2493 | case lang_object_symbols_statement_enum: | |
2494 | case lang_output_statement_enum: | |
2495 | case lang_target_statement_enum: | |
1418c83b | 2496 | #if 0 |
075d7359 | 2497 | case lang_common_statement_enum: |
1418c83b | 2498 | #endif |
2fa0b342 | 2499 | break; |
075d7359 SC |
2500 | case lang_data_statement_enum: |
2501 | { | |
2502 | etree_value_type value; | |
2503 | ||
2504 | value = exp_fold_tree (s->data_statement.exp, | |
2505 | abs_output_section, | |
2506 | lang_final_phase_enum, dot, &dot); | |
2507 | s->data_statement.value = value.value; | |
2508 | if (value.valid == false) | |
ddddcdf0 | 2509 | einfo ("%F%P: invalid data statement\n"); |
075d7359 SC |
2510 | } |
2511 | switch (s->data_statement.type) | |
2512 | { | |
c477527c | 2513 | case QUAD: |
9f19768a | 2514 | case SQUAD: |
c477527c ILT |
2515 | dot += QUAD_SIZE; |
2516 | break; | |
075d7359 SC |
2517 | case LONG: |
2518 | dot += LONG_SIZE; | |
2519 | break; | |
2520 | case SHORT: | |
2521 | dot += SHORT_SIZE; | |
2522 | break; | |
2523 | case BYTE: | |
2524 | dot += BYTE_SIZE; | |
2525 | break; | |
2526 | } | |
2fa0b342 | 2527 | break; |
4fdbafb2 ILT |
2528 | |
2529 | case lang_reloc_statement_enum: | |
2530 | { | |
2531 | etree_value_type value; | |
2532 | ||
2533 | value = exp_fold_tree (s->reloc_statement.addend_exp, | |
2534 | abs_output_section, | |
2535 | lang_final_phase_enum, dot, &dot); | |
2536 | s->reloc_statement.addend_value = value.value; | |
2537 | if (value.valid == false) | |
2538 | einfo ("%F%P: invalid reloc statement\n"); | |
2539 | } | |
2540 | dot += bfd_get_reloc_size (s->reloc_statement.howto); | |
2541 | break; | |
2542 | ||
075d7359 SC |
2543 | case lang_input_section_enum: |
2544 | { | |
2545 | asection *in = s->input_section.section; | |
2546 | ||
f078dc7c ILT |
2547 | if (in->_cooked_size != 0) |
2548 | dot += in->_cooked_size; | |
2549 | else | |
2550 | dot += in->_raw_size; | |
075d7359 | 2551 | } |
2fa0b342 | 2552 | break; |
2fa0b342 | 2553 | |
075d7359 SC |
2554 | case lang_input_statement_enum: |
2555 | break; | |
2556 | case lang_fill_statement_enum: | |
2557 | fill = s->fill_statement.fill; | |
2558 | break; | |
2559 | case lang_assignment_statement_enum: | |
2560 | { | |
2561 | exp_fold_tree (s->assignment_statement.exp, | |
2562 | output_section_statement, | |
2563 | lang_final_phase_enum, | |
2564 | dot, | |
2565 | &dot); | |
2566 | } | |
2567 | ||
2568 | break; | |
2569 | case lang_padding_statement_enum: | |
2570 | dot += s->padding_statement.size; | |
2571 | break; | |
309c8153 ILT |
2572 | |
2573 | case lang_group_statement_enum: | |
2574 | dot = lang_do_assignments (s->group_statement.children.head, | |
2575 | output_section_statement, | |
2576 | fill, dot); | |
2577 | ||
2578 | break; | |
2579 | ||
075d7359 SC |
2580 | default: |
2581 | FAIL (); | |
2582 | break; | |
2583 | case lang_address_statement_enum: | |
2584 | break; | |
2585 | } | |
2fa0b342 DHW |
2586 | |
2587 | } | |
2588 | return dot; | |
2589 | } | |
2590 | ||
1d169acc ILT |
2591 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the |
2592 | operator .startof. (section_name), it produces an undefined symbol | |
2593 | .startof.section_name. Similarly, when it sees | |
2594 | .sizeof. (section_name), it produces an undefined symbol | |
2595 | .sizeof.section_name. For all the output sections, we look for | |
2596 | such symbols, and set them to the correct value. */ | |
2597 | ||
2598 | static void | |
2599 | lang_set_startof () | |
2600 | { | |
2601 | asection *s; | |
2602 | ||
307585f1 ILT |
2603 | if (link_info.relocateable) |
2604 | return; | |
2605 | ||
1d169acc ILT |
2606 | for (s = output_bfd->sections; s != NULL; s = s->next) |
2607 | { | |
2608 | const char *secname; | |
2609 | char *buf; | |
2610 | struct bfd_link_hash_entry *h; | |
2611 | ||
2612 | secname = bfd_get_section_name (output_bfd, s); | |
2613 | buf = xmalloc (10 + strlen (secname)); | |
2614 | ||
2615 | sprintf (buf, ".startof.%s", secname); | |
2616 | h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true); | |
2617 | if (h != NULL && h->type == bfd_link_hash_undefined) | |
2618 | { | |
2619 | h->type = bfd_link_hash_defined; | |
2620 | h->u.def.value = bfd_get_section_vma (output_bfd, s); | |
2621 | h->u.def.section = bfd_abs_section_ptr; | |
2622 | } | |
2623 | ||
2624 | sprintf (buf, ".sizeof.%s", secname); | |
2625 | h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true); | |
2626 | if (h != NULL && h->type == bfd_link_hash_undefined) | |
2627 | { | |
2628 | h->type = bfd_link_hash_defined; | |
2629 | if (s->_cooked_size != 0) | |
2630 | h->u.def.value = s->_cooked_size; | |
2631 | else | |
2632 | h->u.def.value = s->_raw_size; | |
2633 | h->u.def.section = bfd_abs_section_ptr; | |
2634 | } | |
2635 | ||
2636 | free (buf); | |
2637 | } | |
2638 | } | |
2639 | ||
2fa0b342 | 2640 | static void |
8ddef552 | 2641 | lang_finish () |
2fa0b342 | 2642 | { |
c477527c | 2643 | struct bfd_link_hash_entry *h; |
cc38364d KR |
2644 | boolean warn; |
2645 | ||
2646 | if (link_info.relocateable || link_info.shared) | |
2647 | warn = false; | |
2648 | else | |
2649 | warn = true; | |
075d7359 | 2650 | |
c477527c ILT |
2651 | if (entry_symbol == (char *) NULL) |
2652 | { | |
2653 | /* No entry has been specified. Look for start, but don't warn | |
2654 | if we don't find it. */ | |
2655 | entry_symbol = "start"; | |
2656 | warn = false; | |
2657 | } | |
2fa0b342 | 2658 | |
c477527c ILT |
2659 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol, false, false, true); |
2660 | if (h != (struct bfd_link_hash_entry *) NULL | |
8ed88239 | 2661 | && (h->type == bfd_link_hash_defined |
061e65f8 ILT |
2662 | || h->type == bfd_link_hash_defweak) |
2663 | && h->u.def.section->output_section != NULL) | |
075d7359 | 2664 | { |
c477527c | 2665 | bfd_vma val; |
075d7359 | 2666 | |
c477527c ILT |
2667 | val = (h->u.def.value |
2668 | + bfd_get_section_vma (output_bfd, | |
2669 | h->u.def.section->output_section) | |
2670 | + h->u.def.section->output_offset); | |
2671 | if (! bfd_set_start_address (output_bfd, val)) | |
2672 | einfo ("%P%F:%s: can't set start address\n", entry_symbol); | |
075d7359 | 2673 | } |
c477527c | 2674 | else |
22a78f0d | 2675 | { |
c477527c ILT |
2676 | asection *ts; |
2677 | ||
2678 | /* Can't find the entry symbol. Use the first address in the | |
2679 | text section. */ | |
2680 | ts = bfd_get_section_by_name (output_bfd, ".text"); | |
2681 | if (ts != (asection *) NULL) | |
2682 | { | |
2683 | if (warn) | |
2684 | einfo ("%P: warning: cannot find entry symbol %s; defaulting to %V\n", | |
2685 | entry_symbol, bfd_get_section_vma (output_bfd, ts)); | |
2686 | if (! bfd_set_start_address (output_bfd, | |
2687 | bfd_get_section_vma (output_bfd, ts))) | |
2688 | einfo ("%P%F: can't set start address\n"); | |
2689 | } | |
2690 | else | |
2691 | { | |
2692 | if (warn) | |
2693 | einfo ("%P: warning: cannot find entry symbol %s; not setting start address\n", | |
2694 | entry_symbol); | |
2695 | } | |
22a78f0d | 2696 | } |
2fa0b342 DHW |
2697 | } |
2698 | ||
d3c324e5 MM |
2699 | /* This is a small function used when we want to ignore errors from |
2700 | BFD. */ | |
2701 | ||
2702 | static void | |
2703 | #ifdef ANSI_PROTOTYPES | |
2704 | ignore_bfd_errors (const char *s, ...) | |
2705 | #else | |
2706 | ignore_bfd_errors (s) | |
2707 | const char *s; | |
2708 | #endif | |
2709 | { | |
2710 | /* Don't do anything. */ | |
2711 | } | |
2712 | ||
0b3499f6 | 2713 | /* Check that the architecture of all the input files is compatible |
f400bbbb ILT |
2714 | with the output file. Also call the backend to let it do any |
2715 | other checking that is needed. */ | |
0b3499f6 | 2716 | |
2fa0b342 | 2717 | static void |
8ddef552 | 2718 | lang_check () |
2fa0b342 DHW |
2719 | { |
2720 | lang_statement_union_type *file; | |
075d7359 | 2721 | bfd *input_bfd; |
075d7359 | 2722 | CONST bfd_arch_info_type *compatible; |
7bc4a0d7 | 2723 | |
2fa0b342 | 2724 | for (file = file_chain.head; |
075d7359 SC |
2725 | file != (lang_statement_union_type *) NULL; |
2726 | file = file->input_statement.next) | |
2727 | { | |
075d7359 | 2728 | input_bfd = file->input_statement.the_bfd; |
075d7359 SC |
2729 | compatible = bfd_arch_get_compatible (input_bfd, |
2730 | output_bfd); | |
0b3499f6 | 2731 | if (compatible == NULL) |
9f19768a | 2732 | { |
d3c324e5 MM |
2733 | if (command_line.warn_mismatch) |
2734 | einfo ("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n", | |
2735 | bfd_printable_name (input_bfd), input_bfd, | |
2736 | bfd_printable_name (output_bfd)); | |
2737 | } | |
2738 | else | |
2739 | { | |
2740 | bfd_error_handler_type pfn; | |
2741 | ||
2742 | /* If we aren't supposed to warn about mismatched input | |
2743 | files, temporarily set the BFD error handler to a | |
2744 | function which will do nothing. We still want to call | |
2745 | bfd_merge_private_bfd_data, since it may set up | |
2746 | information which is needed in the output file. */ | |
2747 | if (! command_line.warn_mismatch) | |
2748 | pfn = bfd_set_error_handler (ignore_bfd_errors); | |
2749 | if (! bfd_merge_private_bfd_data (input_bfd, output_bfd)) | |
2750 | { | |
2751 | if (command_line.warn_mismatch) | |
2752 | einfo ("%E%X: failed to merge target specific data of file %B\n", | |
2753 | input_bfd); | |
2754 | } | |
2755 | if (! command_line.warn_mismatch) | |
2756 | bfd_set_error_handler (pfn); | |
9f19768a | 2757 | } |
075d7359 SC |
2758 | } |
2759 | } | |
2fa0b342 | 2760 | |
c477527c ILT |
2761 | /* Look through all the global common symbols and attach them to the |
2762 | correct section. The -sort-common command line switch may be used | |
2763 | to roughly sort the entries by size. */ | |
2fa0b342 DHW |
2764 | |
2765 | static void | |
8ddef552 | 2766 | lang_common () |
2fa0b342 | 2767 | { |
c477527c ILT |
2768 | if (link_info.relocateable |
2769 | && ! command_line.force_common_definition) | |
2770 | return; | |
075d7359 | 2771 | |
c477527c ILT |
2772 | if (! config.sort_common) |
2773 | bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL); | |
2774 | else | |
075d7359 | 2775 | { |
fa9dea80 | 2776 | int power; |
1418c83b | 2777 | |
fa9dea80 | 2778 | for (power = 4; power >= 0; power--) |
c477527c ILT |
2779 | bfd_link_hash_traverse (link_info.hash, lang_one_common, |
2780 | (PTR) &power); | |
2781 | } | |
2782 | } | |
29f33467 | 2783 | |
c477527c | 2784 | /* Place one common symbol in the correct section. */ |
075d7359 | 2785 | |
c477527c ILT |
2786 | static boolean |
2787 | lang_one_common (h, info) | |
2788 | struct bfd_link_hash_entry *h; | |
2789 | PTR info; | |
2790 | { | |
2791 | unsigned int power_of_two; | |
2792 | bfd_vma size; | |
c477527c | 2793 | asection *section; |
075d7359 | 2794 | |
c477527c ILT |
2795 | if (h->type != bfd_link_hash_common) |
2796 | return true; | |
075d7359 | 2797 | |
c477527c | 2798 | size = h->u.c.size; |
f400bbbb | 2799 | power_of_two = h->u.c.p->alignment_power; |
36c6e8c3 ILT |
2800 | |
2801 | if (config.sort_common | |
f054ce20 | 2802 | && power_of_two < (unsigned int) *(int *) info) |
c477527c | 2803 | return true; |
075d7359 | 2804 | |
f400bbbb | 2805 | section = h->u.c.p->section; |
075d7359 | 2806 | |
c477527c | 2807 | /* Increase the size of the section. */ |
36c6e8c3 ILT |
2808 | section->_raw_size = ALIGN_N (section->_raw_size, |
2809 | (bfd_size_type) (1 << power_of_two)); | |
075d7359 | 2810 | |
c477527c ILT |
2811 | /* Adjust the alignment if necessary. */ |
2812 | if (power_of_two > section->alignment_power) | |
2813 | section->alignment_power = power_of_two; | |
075d7359 | 2814 | |
c477527c ILT |
2815 | /* Change the symbol from common to defined. */ |
2816 | h->type = bfd_link_hash_defined; | |
2817 | h->u.def.section = section; | |
2818 | h->u.def.value = section->_raw_size; | |
097879bc | 2819 | |
c477527c ILT |
2820 | /* Increase the size of the section. */ |
2821 | section->_raw_size += size; | |
1418c83b | 2822 | |
c5a0d31a ILT |
2823 | /* Make sure the section is allocated in memory, and make sure that |
2824 | it is no longer a common section. */ | |
809391bd | 2825 | section->flags |= SEC_ALLOC; |
c5a0d31a | 2826 | section->flags &= ~ SEC_IS_COMMON; |
809391bd | 2827 | |
b495c314 | 2828 | if (config.map_file != NULL) |
efa6c497 ILT |
2829 | { |
2830 | static boolean header_printed; | |
2831 | int len; | |
2832 | char *name; | |
2833 | char buf[50]; | |
2834 | ||
2835 | if (! header_printed) | |
2836 | { | |
2837 | minfo ("\nAllocating common symbols\n"); | |
2838 | minfo ("Common symbol size file\n\n"); | |
2839 | header_printed = true; | |
2840 | } | |
2841 | ||
2842 | name = demangle (h->root.string); | |
2843 | minfo ("%s", name); | |
2844 | len = strlen (name); | |
2845 | free (name); | |
2846 | ||
2847 | if (len >= 19) | |
2848 | { | |
2849 | print_nl (); | |
2850 | len = 0; | |
2851 | } | |
2852 | while (len < 20) | |
2853 | { | |
2854 | print_space (); | |
2855 | ++len; | |
2856 | } | |
2857 | ||
2858 | minfo ("0x"); | |
2859 | if (size <= 0xffffffff) | |
2860 | sprintf (buf, "%lx", (unsigned long) size); | |
2861 | else | |
2862 | sprintf_vma (buf, size); | |
2863 | minfo ("%s", buf); | |
2864 | len = strlen (buf); | |
2865 | ||
2866 | while (len < 16) | |
2867 | { | |
2868 | print_space (); | |
2869 | ++len; | |
2870 | } | |
2871 | ||
2872 | minfo ("%B\n", section->owner); | |
2873 | } | |
1418c83b | 2874 | |
c477527c | 2875 | return true; |
2fa0b342 DHW |
2876 | } |
2877 | ||
2878 | /* | |
075d7359 | 2879 | run through the input files and ensure that every input |
2fa0b342 DHW |
2880 | section has somewhere to go. If one is found without |
2881 | a destination then create an input request and place it | |
2882 | into the statement tree. | |
2883 | */ | |
2884 | ||
075d7359 | 2885 | static void |
8ddef552 | 2886 | lang_place_orphans () |
2fa0b342 DHW |
2887 | { |
2888 | lang_input_statement_type *file; | |
1418c83b | 2889 | |
075d7359 SC |
2890 | for (file = (lang_input_statement_type *) file_chain.head; |
2891 | file != (lang_input_statement_type *) NULL; | |
2892 | file = (lang_input_statement_type *) file->next) | |
2893 | { | |
2894 | asection *s; | |
2895 | ||
2896 | for (s = file->the_bfd->sections; | |
2897 | s != (asection *) NULL; | |
2898 | s = s->next) | |
2899 | { | |
2900 | if (s->output_section == (asection *) NULL) | |
2901 | { | |
2902 | /* This section of the file is not attatched, root | |
2903 | around for a sensible place for it to go */ | |
2904 | ||
e802f0be DE |
2905 | if (file->just_syms_flag) |
2906 | { | |
2907 | /* We are only retrieving symbol values from this | |
2908 | file. We want the symbols to act as though the | |
2909 | values in the file are absolute. */ | |
2910 | s->output_section = bfd_abs_section_ptr; | |
2911 | s->output_offset = s->vma; | |
2912 | } | |
86bc0974 | 2913 | else if (strcmp (s->name, "COMMON") == 0) |
075d7359 | 2914 | { |
86bc0974 ILT |
2915 | /* This is a lonely common section which must have |
2916 | come from an archive. We attach to the section | |
2917 | with the wildcard. */ | |
c477527c | 2918 | if (! link_info.relocateable |
86bc0974 | 2919 | || command_line.force_common_definition) |
075d7359 | 2920 | { |
86bc0974 | 2921 | if (default_common_section == NULL) |
075d7359 | 2922 | { |
86bc0974 ILT |
2923 | #if 0 |
2924 | /* This message happens when using the | |
2925 | svr3.ifile linker script, so I have | |
2926 | disabled it. */ | |
a4aeaacf | 2927 | info_msg ("%P: no [COMMON] command, defaulting to .bss\n"); |
86bc0974 | 2928 | #endif |
075d7359 SC |
2929 | default_common_section = |
2930 | lang_output_section_statement_lookup (".bss"); | |
2931 | ||
2932 | } | |
2933 | wild_doit (&default_common_section->children, s, | |
2934 | default_common_section, file); | |
2935 | } | |
2936 | } | |
0b3499f6 ILT |
2937 | else if (ldemul_place_orphan (file, s)) |
2938 | ; | |
075d7359 SC |
2939 | else |
2940 | { | |
2941 | lang_output_section_statement_type *os = | |
2942 | lang_output_section_statement_lookup (s->name); | |
2fa0b342 | 2943 | |
075d7359 SC |
2944 | wild_doit (&os->children, s, os, file); |
2945 | } | |
2946 | } | |
2fa0b342 | 2947 | } |
2fa0b342 | 2948 | } |
2fa0b342 DHW |
2949 | } |
2950 | ||
2951 | ||
2fa0b342 | 2952 | void |
8ddef552 | 2953 | lang_set_flags (ptr, flags) |
d3c324e5 | 2954 | lang_memory_region_type *ptr; |
8ddef552 | 2955 | CONST char *flags; |
2fa0b342 | 2956 | { |
d3c324e5 | 2957 | flagword *ptr_flags = &ptr->flags; |
075d7359 | 2958 | |
d3c324e5 | 2959 | ptr->flags = ptr->not_flags = 0; |
2fa0b342 | 2960 | while (*flags) |
075d7359 | 2961 | { |
075d7359 SC |
2962 | switch (*flags) |
2963 | { | |
d3c324e5 MM |
2964 | case '!': |
2965 | ptr_flags = (ptr_flags == &ptr->flags) ? &ptr->not_flags : &ptr->flags; | |
075d7359 | 2966 | break; |
d3c324e5 MM |
2967 | |
2968 | case 'A': case 'a': | |
2969 | *ptr_flags |= SEC_ALLOC; | |
075d7359 | 2970 | break; |
d3c324e5 MM |
2971 | |
2972 | case 'R': case 'r': | |
2973 | *ptr_flags |= SEC_READONLY; | |
2974 | break; | |
2975 | ||
2976 | case 'W': case 'w': | |
2977 | *ptr_flags |= SEC_DATA; | |
075d7359 | 2978 | break; |
d3c324e5 MM |
2979 | |
2980 | case 'X': case 'x': | |
2981 | *ptr_flags |= SEC_CODE; | |
075d7359 | 2982 | break; |
d3c324e5 MM |
2983 | |
2984 | case 'L': case 'l': | |
2985 | case 'I': case 'i': | |
2986 | *ptr_flags |= SEC_LOAD; | |
2987 | break; | |
2988 | ||
075d7359 | 2989 | default: |
ddddcdf0 | 2990 | einfo ("%P%F: invalid syntax in flags\n"); |
075d7359 SC |
2991 | break; |
2992 | } | |
dc4726c2 SC |
2993 | flags++; |
2994 | } | |
2fa0b342 DHW |
2995 | } |
2996 | ||
a4d2a48e ILT |
2997 | /* Call a function on each input file. This function will be called |
2998 | on an archive, but not on the elements. */ | |
2999 | ||
3000 | void | |
3001 | lang_for_each_input_file (func) | |
3002 | void (*func) PARAMS ((lang_input_statement_type *)); | |
3003 | { | |
3004 | lang_input_statement_type *f; | |
3005 | ||
3006 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
3007 | f != NULL; | |
3008 | f = (lang_input_statement_type *) f->next_real_file) | |
3009 | func (f); | |
3010 | } | |
2fa0b342 | 3011 | |
a4d2a48e ILT |
3012 | /* Call a function on each file. The function will be called on all |
3013 | the elements of an archive which are included in the link, but will | |
3014 | not be called on the archive file itself. */ | |
2fa0b342 DHW |
3015 | |
3016 | void | |
8ddef552 DM |
3017 | lang_for_each_file (func) |
3018 | void (*func) PARAMS ((lang_input_statement_type *)); | |
2fa0b342 DHW |
3019 | { |
3020 | lang_input_statement_type *f; | |
075d7359 SC |
3021 | |
3022 | for (f = (lang_input_statement_type *) file_chain.head; | |
3023 | f != (lang_input_statement_type *) NULL; | |
3024 | f = (lang_input_statement_type *) f->next) | |
3025 | { | |
3026 | func (f); | |
3027 | } | |
2fa0b342 DHW |
3028 | } |
3029 | ||
9f629407 ILT |
3030 | #if 0 |
3031 | ||
3032 | /* Not used. */ | |
2fa0b342 DHW |
3033 | |
3034 | void | |
8ddef552 DM |
3035 | lang_for_each_input_section (func) |
3036 | void (*func) PARAMS ((bfd * ab, asection * as)); | |
2fa0b342 DHW |
3037 | { |
3038 | lang_input_statement_type *f; | |
075d7359 SC |
3039 | |
3040 | for (f = (lang_input_statement_type *) file_chain.head; | |
3041 | f != (lang_input_statement_type *) NULL; | |
3042 | f = (lang_input_statement_type *) f->next) | |
2fa0b342 DHW |
3043 | { |
3044 | asection *s; | |
075d7359 | 3045 | |
2fa0b342 | 3046 | for (s = f->the_bfd->sections; |
075d7359 SC |
3047 | s != (asection *) NULL; |
3048 | s = s->next) | |
3049 | { | |
3050 | func (f->the_bfd, s); | |
3051 | } | |
2fa0b342 DHW |
3052 | } |
3053 | } | |
3054 | ||
9f629407 | 3055 | #endif |
2fa0b342 | 3056 | |
075d7359 | 3057 | void |
8ddef552 DM |
3058 | ldlang_add_file (entry) |
3059 | lang_input_statement_type * entry; | |
2fa0b342 | 3060 | { |
5e6cd559 ILT |
3061 | bfd **pp; |
3062 | ||
075d7359 SC |
3063 | lang_statement_append (&file_chain, |
3064 | (lang_statement_union_type *) entry, | |
3065 | &entry->next); | |
c477527c ILT |
3066 | |
3067 | /* The BFD linker needs to have a list of all input BFDs involved in | |
3068 | a link. */ | |
3069 | ASSERT (entry->the_bfd->link_next == (bfd *) NULL); | |
3070 | ASSERT (entry->the_bfd != output_bfd); | |
5e6cd559 ILT |
3071 | for (pp = &link_info.input_bfds; |
3072 | *pp != (bfd *) NULL; | |
3073 | pp = &(*pp)->link_next) | |
3074 | ; | |
3075 | *pp = entry->the_bfd; | |
c477527c | 3076 | entry->the_bfd->usrdata = (PTR) entry; |
fc1dfb71 | 3077 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
23595ba5 ILT |
3078 | |
3079 | /* Look through the sections and check for any which should not be | |
3080 | included in the link. We need to do this now, so that we can | |
3081 | notice when the backend linker tries to report multiple | |
3082 | definition errors for symbols which are in sections we aren't | |
3083 | going to link. FIXME: It might be better to entirely ignore | |
3084 | symbols which are defined in sections which are going to be | |
3085 | discarded. This would require modifying the backend linker for | |
3086 | each backend which might set the SEC_LINK_ONCE flag. If we do | |
3087 | this, we should probably handle SEC_EXCLUDE in the same way. */ | |
3088 | ||
c5a0d31a | 3089 | bfd_map_over_sections (entry->the_bfd, section_already_linked, (PTR) entry); |
2fa0b342 DHW |
3090 | } |
3091 | ||
2fa0b342 | 3092 | void |
2c6635a4 | 3093 | lang_add_output (name, from_script) |
8ddef552 | 3094 | CONST char *name; |
2c6635a4 | 3095 | int from_script; |
2fa0b342 | 3096 | { |
2c6635a4 ILT |
3097 | /* Make -o on command line override OUTPUT in script. */ |
3098 | if (had_output_filename == false || !from_script) | |
3099 | { | |
3100 | output_filename = name; | |
3101 | had_output_filename = true; | |
3102 | } | |
2fa0b342 DHW |
3103 | } |
3104 | ||
3105 | ||
3106 | static lang_output_section_statement_type *current_section; | |
3107 | ||
f054ce20 ILT |
3108 | static int |
3109 | topower (x) | |
9f629407 | 3110 | int x; |
e20873a7 | 3111 | { |
f054ce20 | 3112 | unsigned int i = 1; |
e20873a7 | 3113 | int l; |
f054ce20 ILT |
3114 | |
3115 | if (x < 0) | |
3116 | return -1; | |
3117 | ||
e20873a7 | 3118 | for (l = 0; l < 32; l++) |
f054ce20 ILT |
3119 | { |
3120 | if (i >= (unsigned int) x) | |
3121 | return l; | |
3122 | i <<= 1; | |
3123 | } | |
3124 | ||
29f33467 | 3125 | return 0; |
e20873a7 | 3126 | } |
86bc0974 | 3127 | |
2fa0b342 | 3128 | void |
8ddef552 | 3129 | lang_enter_output_section_statement (output_section_statement_name, |
86bc0974 | 3130 | address_exp, sectype, block_value, |
9f629407 | 3131 | align, subalign, ebase) |
fcf276c4 | 3132 | const char *output_section_statement_name; |
8ddef552 | 3133 | etree_type * address_exp; |
86bc0974 | 3134 | enum section_type sectype; |
8ddef552 DM |
3135 | bfd_vma block_value; |
3136 | etree_type *align; | |
3137 | etree_type *subalign; | |
9f629407 | 3138 | etree_type *ebase; |
2fa0b342 DHW |
3139 | { |
3140 | lang_output_section_statement_type *os; | |
075d7359 SC |
3141 | |
3142 | current_section = | |
e20873a7 | 3143 | os = |
075d7359 SC |
3144 | lang_output_section_statement_lookup (output_section_statement_name); |
3145 | ||
3146 | ||
2fa0b342 | 3147 | |
2fa0b342 DHW |
3148 | /* Add this statement to tree */ |
3149 | /* add_statement(lang_output_section_statement_enum, | |
3150 | output_section_statement);*/ | |
3151 | /* Make next things chain into subchain of this */ | |
3152 | ||
3153 | if (os->addr_tree == | |
075d7359 | 3154 | (etree_type *) NULL) |
e20873a7 JG |
3155 | { |
3156 | os->addr_tree = | |
3157 | address_exp; | |
3158 | } | |
86bc0974 ILT |
3159 | os->sectype = sectype; |
3160 | if (sectype != noload_section) | |
3161 | os->flags = SEC_NO_FLAGS; | |
ae475b39 | 3162 | else |
86bc0974 | 3163 | os->flags = SEC_NEVER_LOAD; |
29f33467 | 3164 | os->block_value = block_value ? block_value : 1; |
075d7359 | 3165 | stat_ptr = &os->children; |
2fa0b342 | 3166 | |
e20873a7 JG |
3167 | os->subsection_alignment = topower( |
3168 | exp_get_value_int(subalign, -1, | |
3169 | "subsection alignment", | |
3170 | 0)); | |
3171 | os->section_alignment = topower( | |
3172 | exp_get_value_int(align, -1, | |
3173 | "section alignment", 0)); | |
9fce28ed | 3174 | |
9f629407 | 3175 | os->load_base = ebase; |
2fa0b342 DHW |
3176 | } |
3177 | ||
9fce28ed | 3178 | |
075d7359 | 3179 | void |
8ddef552 | 3180 | lang_final () |
2fa0b342 | 3181 | { |
2c6635a4 ILT |
3182 | lang_output_statement_type *new = |
3183 | new_stat (lang_output_statement, stat_ptr); | |
2fa0b342 | 3184 | |
2c6635a4 | 3185 | new->name = output_filename; |
075d7359 | 3186 | } |
2fa0b342 | 3187 | |
c611e285 SC |
3188 | /* Reset the current counters in the regions */ |
3189 | static void | |
8ddef552 | 3190 | reset_memory_regions () |
c611e285 | 3191 | { |
075d7359 SC |
3192 | lang_memory_region_type *p = lang_memory_region_list; |
3193 | ||
c611e285 | 3194 | for (p = lang_memory_region_list; |
075d7359 SC |
3195 | p != (lang_memory_region_type *) NULL; |
3196 | p = p->next) | |
3197 | { | |
8ddef552 | 3198 | p->old_length = (bfd_size_type) (p->current - p->origin); |
075d7359 SC |
3199 | p->current = p->origin; |
3200 | } | |
c611e285 | 3201 | } |
2fa0b342 | 3202 | |
2fa0b342 | 3203 | void |
8ddef552 | 3204 | lang_process () |
075d7359 | 3205 | { |
075d7359 | 3206 | lang_reasonable_defaults (); |
1418c83b SC |
3207 | current_target = default_target; |
3208 | ||
075d7359 | 3209 | lang_for_each_statement (ldlang_open_output); /* Open the output file */ |
1418c83b | 3210 | |
97fbbaca JL |
3211 | ldemul_create_output_section_statements (); |
3212 | ||
1418c83b | 3213 | /* Add to the hash table all undefineds on the command line */ |
075d7359 | 3214 | lang_place_undefineds (); |
1418c83b SC |
3215 | |
3216 | /* Create a bfd for each input file */ | |
3217 | current_target = default_target; | |
309c8153 | 3218 | open_input_bfds (statement_list.head, false); |
1418c83b | 3219 | |
cc38364d KR |
3220 | ldemul_after_open (); |
3221 | ||
9f19768a ILT |
3222 | /* Make sure that we're not mixing architectures. We call this |
3223 | after all the input files have been opened, but before we do any | |
3224 | other processing, so that any operations merge_private_bfd_data | |
3225 | does on the output file will be known during the rest of the | |
3226 | link. */ | |
3227 | lang_check (); | |
3228 | ||
c477527c ILT |
3229 | /* Build all sets based on the information gathered from the input |
3230 | files. */ | |
3231 | ldctor_build_sets (); | |
3232 | ||
4fdbafb2 ILT |
3233 | /* Size up the common data */ |
3234 | lang_common (); | |
3235 | ||
9f19768a | 3236 | /* Run through the contours of the script and attach input sections |
075d7359 | 3237 | to the correct output sections |
1418c83b | 3238 | */ |
075d7359 SC |
3239 | map_input_to_output_sections (statement_list.head, (char *) NULL, |
3240 | (lang_output_section_statement_type *) NULL); | |
1418c83b | 3241 | |
81016051 | 3242 | |
9f19768a | 3243 | /* Find any sections not attached explicitly and handle them */ |
075d7359 | 3244 | lang_place_orphans (); |
1418c83b | 3245 | |
075d7359 | 3246 | ldemul_before_allocation (); |
1418c83b | 3247 | |
061e65f8 ILT |
3248 | /* We must record the program headers before we try to fix the |
3249 | section positions, since they will affect SIZEOF_HEADERS. */ | |
3250 | lang_record_phdrs (); | |
3251 | ||
c611e285 | 3252 | /* Now run around and relax if we can */ |
075d7359 | 3253 | if (command_line.relax) |
c611e285 | 3254 | { |
97fbbaca JL |
3255 | /* First time round is a trial run to get the 'worst case' |
3256 | addresses of the objects if there was no relaxing. */ | |
ae475b39 | 3257 | lang_size_sections (statement_list.head, |
193c5f93 | 3258 | abs_output_section, |
ae475b39 | 3259 | &(statement_list.head), 0, (bfd_vma) 0, false); |
c611e285 | 3260 | |
193c5f93 ILT |
3261 | /* Keep relaxing until bfd_relax_section gives up. */ |
3262 | do | |
3263 | { | |
1d169acc ILT |
3264 | reset_memory_regions (); |
3265 | ||
193c5f93 | 3266 | relax_again = false; |
ae475b39 | 3267 | |
193c5f93 ILT |
3268 | /* Do all the assignments with our current guesses as to |
3269 | section sizes. */ | |
3270 | lang_do_assignments (statement_list.head, | |
3271 | abs_output_section, | |
3272 | (fill_type) 0, (bfd_vma) 0); | |
ae475b39 | 3273 | |
193c5f93 ILT |
3274 | /* Perform another relax pass - this time we know where the |
3275 | globals are, so can make better guess. */ | |
3276 | lang_size_sections (statement_list.head, | |
3277 | abs_output_section, | |
3278 | &(statement_list.head), 0, (bfd_vma) 0, true); | |
3279 | } | |
3280 | while (relax_again); | |
ae475b39 | 3281 | } |
ae475b39 SC |
3282 | else |
3283 | { | |
97fbbaca | 3284 | /* Size up the sections. */ |
ae475b39 SC |
3285 | lang_size_sections (statement_list.head, |
3286 | abs_output_section, | |
3287 | &(statement_list.head), 0, (bfd_vma) 0, false); | |
075d7359 | 3288 | } |
c611e285 | 3289 | |
1418c83b | 3290 | /* See if anything special should be done now we know how big |
97fbbaca | 3291 | everything is. */ |
075d7359 | 3292 | ldemul_after_allocation (); |
1418c83b | 3293 | |
1d169acc ILT |
3294 | /* Fix any .startof. or .sizeof. symbols. */ |
3295 | lang_set_startof (); | |
3296 | ||
1418c83b SC |
3297 | /* Do all the assignments, now that we know the final restingplaces |
3298 | of all the symbols */ | |
3299 | ||
075d7359 SC |
3300 | lang_do_assignments (statement_list.head, |
3301 | abs_output_section, | |
c477527c | 3302 | (fill_type) 0, (bfd_vma) 0); |
ffc50032 | 3303 | |
1418c83b | 3304 | /* Final stuffs */ |
97fbbaca JL |
3305 | |
3306 | ldemul_finish (); | |
075d7359 | 3307 | lang_finish (); |
2fa0b342 DHW |
3308 | } |
3309 | ||
2fa0b342 | 3310 | /* EXPORTED TO YACC */ |
1418c83b | 3311 | |
2fa0b342 | 3312 | void |
8ddef552 DM |
3313 | lang_add_wild (section_name, filename) |
3314 | CONST char *CONST section_name; | |
3315 | CONST char *CONST filename; | |
1418c83b | 3316 | { |
075d7359 SC |
3317 | lang_wild_statement_type *new = new_stat (lang_wild_statement, |
3318 | stat_ptr); | |
1418c83b | 3319 | |
075d7359 SC |
3320 | if (section_name != (char *) NULL && strcmp (section_name, "COMMON") == 0) |
3321 | { | |
3322 | placed_commons = true; | |
3323 | } | |
3324 | if (filename != (char *) NULL) | |
3325 | { | |
3326 | lang_has_input_file = true; | |
3327 | } | |
1418c83b SC |
3328 | new->section_name = section_name; |
3329 | new->filename = filename; | |
075d7359 | 3330 | lang_list_init (&new->children); |
1418c83b | 3331 | } |
075d7359 | 3332 | |
1418c83b | 3333 | void |
8ddef552 DM |
3334 | lang_section_start (name, address) |
3335 | CONST char *name; | |
3336 | etree_type * address; | |
2fa0b342 | 3337 | { |
075d7359 SC |
3338 | lang_address_statement_type *ad = new_stat (lang_address_statement, stat_ptr); |
3339 | ||
2fa0b342 DHW |
3340 | ad->section_name = name; |
3341 | ad->address = address; | |
3342 | } | |
1418c83b | 3343 | |
60e8a534 ILT |
3344 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called |
3345 | because of a -e argument on the command line, or zero if this is | |
3346 | called by ENTRY in a linker script. Command line arguments take | |
3347 | precedence. */ | |
3348 | ||
3f38a017 SC |
3349 | /* WINDOWS_NT. When an entry point has been specified, we will also force |
3350 | this symbol to be defined by calling ldlang_add_undef (equivalent to | |
3351 | having switch -u entry_name on the command line). The reason we do | |
3352 | this is so that the user doesn't have to because they would have to use | |
3353 | the -u switch if they were specifying an entry point other than | |
3354 | _mainCRTStartup. Specifically, if creating a windows application, entry | |
3355 | point _WinMainCRTStartup must be specified. | |
3356 | What I have found for non console applications (entry not _mainCRTStartup) | |
3357 | is that the .obj that contains mainCRTStartup is brought in since it is | |
3358 | the first encountered in libc.lib and it has other symbols in it which will | |
3359 | be pulled in by the link process. To avoid this, adding -u with the entry | |
3360 | point name specified forces the correct .obj to be used. We can avoid | |
3361 | making the user do this by always adding the entry point name as an | |
3362 | undefined symbol. */ | |
3363 | ||
075d7359 | 3364 | void |
60e8a534 | 3365 | lang_add_entry (name, cmdline) |
8ddef552 | 3366 | CONST char *name; |
f054ce20 | 3367 | boolean cmdline; |
2fa0b342 | 3368 | { |
60e8a534 ILT |
3369 | if (entry_symbol == NULL |
3370 | || cmdline | |
f054ce20 | 3371 | || ! entry_from_cmdline) |
60e8a534 ILT |
3372 | { |
3373 | entry_symbol = name; | |
f054ce20 | 3374 | entry_from_cmdline = cmdline; |
60e8a534 | 3375 | } |
943fbd5b | 3376 | #if 0 |
3f38a017 SC |
3377 | /* don't do this yet. It seems to work (the executables run), but the |
3378 | image created is very different from what I was getting before indicating | |
3379 | that something else is being pulled in. When everything else is working, | |
3380 | then try to put this back in to see if it will do the right thing for | |
3381 | other more complicated applications */ | |
3382 | ldlang_add_undef (name); | |
3383 | #endif | |
2fa0b342 DHW |
3384 | } |
3385 | ||
3386 | void | |
8ddef552 DM |
3387 | lang_add_target (name) |
3388 | CONST char *name; | |
2fa0b342 | 3389 | { |
075d7359 SC |
3390 | lang_target_statement_type *new = new_stat (lang_target_statement, |
3391 | stat_ptr); | |
3392 | ||
2fa0b342 DHW |
3393 | new->target = name; |
3394 | ||
3395 | } | |
2fa0b342 | 3396 | |
2fa0b342 | 3397 | void |
8ddef552 DM |
3398 | lang_add_map (name) |
3399 | CONST char *name; | |
2fa0b342 | 3400 | { |
075d7359 SC |
3401 | while (*name) |
3402 | { | |
3403 | switch (*name) | |
3404 | { | |
3405 | case 'F': | |
3406 | map_option_f = true; | |
3407 | break; | |
3408 | } | |
3409 | name++; | |
2fa0b342 | 3410 | } |
2fa0b342 DHW |
3411 | } |
3412 | ||
075d7359 | 3413 | void |
8ddef552 DM |
3414 | lang_add_fill (exp) |
3415 | int exp; | |
2fa0b342 | 3416 | { |
075d7359 SC |
3417 | lang_fill_statement_type *new = new_stat (lang_fill_statement, |
3418 | stat_ptr); | |
3419 | ||
2fa0b342 DHW |
3420 | new->fill = exp; |
3421 | } | |
3422 | ||
075d7359 | 3423 | void |
8ddef552 DM |
3424 | lang_add_data (type, exp) |
3425 | int type; | |
3426 | union etree_union *exp; | |
2fa0b342 DHW |
3427 | { |
3428 | ||
075d7359 | 3429 | lang_data_statement_type *new = new_stat (lang_data_statement, |
2fa0b342 | 3430 | stat_ptr); |
075d7359 SC |
3431 | |
3432 | new->exp = exp; | |
3433 | new->type = type; | |
2fa0b342 DHW |
3434 | |
3435 | } | |
075d7359 | 3436 | |
4fdbafb2 ILT |
3437 | /* Create a new reloc statement. RELOC is the BFD relocation type to |
3438 | generate. HOWTO is the corresponding howto structure (we could | |
3439 | look this up, but the caller has already done so). SECTION is the | |
3440 | section to generate a reloc against, or NAME is the name of the | |
3441 | symbol to generate a reloc against. Exactly one of SECTION and | |
3442 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
3443 | ||
3444 | void | |
3445 | lang_add_reloc (reloc, howto, section, name, addend) | |
3446 | bfd_reloc_code_real_type reloc; | |
cc38364d | 3447 | reloc_howto_type *howto; |
4fdbafb2 ILT |
3448 | asection *section; |
3449 | const char *name; | |
3450 | union etree_union *addend; | |
3451 | { | |
3452 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
3453 | ||
3454 | p->reloc = reloc; | |
3455 | p->howto = howto; | |
3456 | p->section = section; | |
3457 | p->name = name; | |
3458 | p->addend_exp = addend; | |
3459 | ||
3460 | p->addend_value = 0; | |
3461 | p->output_section = NULL; | |
3462 | p->output_vma = 0; | |
3463 | } | |
3464 | ||
2fa0b342 | 3465 | void |
8ddef552 DM |
3466 | lang_add_assignment (exp) |
3467 | etree_type * exp; | |
2fa0b342 | 3468 | { |
075d7359 SC |
3469 | lang_assignment_statement_type *new = new_stat (lang_assignment_statement, |
3470 | stat_ptr); | |
3471 | ||
2fa0b342 DHW |
3472 | new->exp = exp; |
3473 | } | |
3474 | ||
3475 | void | |
8ddef552 DM |
3476 | lang_add_attribute (attribute) |
3477 | enum statement_enum attribute; | |
2fa0b342 | 3478 | { |
075d7359 | 3479 | new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr); |
2fa0b342 DHW |
3480 | } |
3481 | ||
075d7359 | 3482 | void |
8ddef552 DM |
3483 | lang_startup (name) |
3484 | CONST char *name; | |
2fa0b342 | 3485 | { |
075d7359 SC |
3486 | if (startup_file != (char *) NULL) |
3487 | { | |
ddddcdf0 | 3488 | einfo ("%P%Fmultiple STARTUP files\n"); |
075d7359 | 3489 | } |
2fa0b342 DHW |
3490 | first_file->filename = name; |
3491 | first_file->local_sym_name = name; | |
193c5f93 | 3492 | first_file->real = true; |
2fa0b342 | 3493 | |
075d7359 | 3494 | startup_file = name; |
2fa0b342 | 3495 | } |
075d7359 SC |
3496 | |
3497 | void | |
8ddef552 DM |
3498 | lang_float (maybe) |
3499 | boolean maybe; | |
2fa0b342 DHW |
3500 | { |
3501 | lang_float_flag = maybe; | |
3502 | } | |
3503 | ||
075d7359 | 3504 | void |
d22ec3b0 | 3505 | lang_leave_output_section_statement (fill, memspec, phdrs) |
8ddef552 | 3506 | bfd_vma fill; |
d22ec3b0 ILT |
3507 | const char *memspec; |
3508 | struct lang_output_section_phdr_list *phdrs; | |
2fa0b342 DHW |
3509 | { |
3510 | current_section->fill = fill; | |
075d7359 | 3511 | current_section->region = lang_memory_region_lookup (memspec); |
d22ec3b0 | 3512 | current_section->phdrs = phdrs; |
2fa0b342 DHW |
3513 | stat_ptr = &statement_list; |
3514 | } | |
075d7359 | 3515 | |
9f32f7c2 SC |
3516 | /* |
3517 | Create an absolute symbol with the given name with the value of the | |
3518 | address of first byte of the section named. | |
2fa0b342 | 3519 | |
9f32f7c2 SC |
3520 | If the symbol already exists, then do nothing. |
3521 | */ | |
8cb5eb31 | 3522 | void |
c477527c ILT |
3523 | lang_abs_symbol_at_beginning_of (secname, name) |
3524 | const char *secname; | |
3525 | const char *name; | |
075d7359 | 3526 | { |
c477527c ILT |
3527 | struct bfd_link_hash_entry *h; |
3528 | ||
3529 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); | |
3530 | if (h == (struct bfd_link_hash_entry *) NULL) | |
3531 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); | |
3532 | ||
3533 | if (h->type == bfd_link_hash_new | |
3534 | || h->type == bfd_link_hash_undefined) | |
075d7359 | 3535 | { |
c477527c | 3536 | asection *sec; |
075d7359 | 3537 | |
c477527c ILT |
3538 | h->type = bfd_link_hash_defined; |
3539 | ||
3540 | sec = bfd_get_section_by_name (output_bfd, secname); | |
3541 | if (sec == (asection *) NULL) | |
3542 | h->u.def.value = 0; | |
075d7359 | 3543 | else |
c477527c ILT |
3544 | h->u.def.value = bfd_get_section_vma (output_bfd, sec); |
3545 | ||
686739e2 | 3546 | h->u.def.section = bfd_abs_section_ptr; |
9f32f7c2 | 3547 | } |
8cb5eb31 SC |
3548 | } |
3549 | ||
9f32f7c2 SC |
3550 | /* |
3551 | Create an absolute symbol with the given name with the value of the | |
3552 | address of the first byte after the end of the section named. | |
3553 | ||
3554 | If the symbol already exists, then do nothing. | |
3555 | */ | |
2fa0b342 | 3556 | void |
c477527c ILT |
3557 | lang_abs_symbol_at_end_of (secname, name) |
3558 | const char *secname; | |
3559 | const char *name; | |
075d7359 | 3560 | { |
c477527c ILT |
3561 | struct bfd_link_hash_entry *h; |
3562 | ||
3563 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); | |
3564 | if (h == (struct bfd_link_hash_entry *) NULL) | |
3565 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); | |
3566 | ||
3567 | if (h->type == bfd_link_hash_new | |
3568 | || h->type == bfd_link_hash_undefined) | |
075d7359 | 3569 | { |
c477527c | 3570 | asection *sec; |
075d7359 | 3571 | |
c477527c | 3572 | h->type = bfd_link_hash_defined; |
075d7359 | 3573 | |
c477527c ILT |
3574 | sec = bfd_get_section_by_name (output_bfd, secname); |
3575 | if (sec == (asection *) NULL) | |
3576 | h->u.def.value = 0; | |
075d7359 | 3577 | else |
c477527c ILT |
3578 | h->u.def.value = (bfd_get_section_vma (output_bfd, sec) |
3579 | + bfd_section_size (output_bfd, sec)); | |
3580 | ||
686739e2 | 3581 | h->u.def.section = bfd_abs_section_ptr; |
9f32f7c2 | 3582 | } |
2fa0b342 DHW |
3583 | } |
3584 | ||
075d7359 | 3585 | void |
8ddef552 DM |
3586 | lang_statement_append (list, element, field) |
3587 | lang_statement_list_type * list; | |
3588 | lang_statement_union_type * element; | |
3589 | lang_statement_union_type ** field; | |
2fa0b342 DHW |
3590 | { |
3591 | *(list->tail) = element; | |
3592 | list->tail = field; | |
3593 | } | |
3594 | ||
173a0c3d | 3595 | /* Set the output format type. -oformat overrides scripts. */ |
6a02a973 | 3596 | |
097879bc | 3597 | void |
6a02a973 ILT |
3598 | lang_add_output_format (format, big, little, from_script) |
3599 | const char *format; | |
3600 | const char *big; | |
3601 | const char *little; | |
173a0c3d | 3602 | int from_script; |
097879bc | 3603 | { |
2c6635a4 | 3604 | if (output_target == NULL || !from_script) |
6a02a973 ILT |
3605 | { |
3606 | if (command_line.endian == ENDIAN_BIG | |
3607 | && big != NULL) | |
3608 | format = big; | |
3609 | else if (command_line.endian == ENDIAN_LITTLE | |
3610 | && little != NULL) | |
3611 | format = little; | |
3612 | ||
3613 | output_target = format; | |
3614 | } | |
097879bc | 3615 | } |
309c8153 ILT |
3616 | |
3617 | /* Enter a group. This creates a new lang_group_statement, and sets | |
3618 | stat_ptr to build new statements within the group. */ | |
3619 | ||
3620 | void | |
3621 | lang_enter_group () | |
3622 | { | |
3623 | lang_group_statement_type *g; | |
3624 | ||
3625 | g = new_stat (lang_group_statement, stat_ptr); | |
3626 | lang_list_init (&g->children); | |
3627 | stat_ptr = &g->children; | |
3628 | } | |
3629 | ||
3630 | /* Leave a group. This just resets stat_ptr to start writing to the | |
3631 | regular list of statements again. Note that this will not work if | |
3632 | groups can occur inside anything else which can adjust stat_ptr, | |
3633 | but currently they can't. */ | |
3634 | ||
3635 | void | |
3636 | lang_leave_group () | |
3637 | { | |
3638 | stat_ptr = &statement_list; | |
3639 | } | |
061e65f8 ILT |
3640 | |
3641 | /* Add a new program header. This is called for each entry in a PHDRS | |
3642 | command in a linker script. */ | |
3643 | ||
3644 | void | |
708f7fbc | 3645 | lang_new_phdr (name, type, filehdr, phdrs, at, flags) |
061e65f8 ILT |
3646 | const char *name; |
3647 | etree_type *type; | |
708f7fbc ILT |
3648 | boolean filehdr; |
3649 | boolean phdrs; | |
061e65f8 | 3650 | etree_type *at; |
708f7fbc | 3651 | etree_type *flags; |
061e65f8 ILT |
3652 | { |
3653 | struct lang_phdr *n, **pp; | |
3654 | ||
3655 | n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr)); | |
3656 | n->next = NULL; | |
3657 | n->name = name; | |
3658 | n->type = exp_get_value_int (type, 0, "program header type", | |
3659 | lang_final_phase_enum); | |
708f7fbc ILT |
3660 | n->filehdr = filehdr; |
3661 | n->phdrs = phdrs; | |
061e65f8 | 3662 | n->at = at; |
708f7fbc | 3663 | n->flags = flags; |
061e65f8 ILT |
3664 | |
3665 | for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next) | |
3666 | ; | |
3667 | *pp = n; | |
3668 | } | |
3669 | ||
061e65f8 ILT |
3670 | /* Record the program header information in the output BFD. FIXME: We |
3671 | should not be calling an ELF specific function here. */ | |
3672 | ||
3673 | static void | |
3674 | lang_record_phdrs () | |
3675 | { | |
3676 | unsigned int alc; | |
3677 | asection **secs; | |
3678 | struct lang_output_section_phdr_list *last; | |
3679 | struct lang_phdr *l; | |
3680 | lang_statement_union_type *u; | |
3681 | ||
3682 | alc = 10; | |
c5a0d31a | 3683 | secs = (asection **) xmalloc (alc * sizeof (asection *)); |
061e65f8 ILT |
3684 | last = NULL; |
3685 | for (l = lang_phdr_list; l != NULL; l = l->next) | |
3686 | { | |
3687 | unsigned int c; | |
708f7fbc | 3688 | flagword flags; |
061e65f8 ILT |
3689 | bfd_vma at; |
3690 | ||
3691 | c = 0; | |
3692 | for (u = lang_output_section_statement.head; | |
3693 | u != NULL; | |
3694 | u = u->output_section_statement.next) | |
3695 | { | |
3696 | lang_output_section_statement_type *os; | |
3697 | struct lang_output_section_phdr_list *pl; | |
3698 | ||
3699 | os = &u->output_section_statement; | |
3700 | ||
708f7fbc | 3701 | pl = os->phdrs; |
061e65f8 ILT |
3702 | if (pl != NULL) |
3703 | last = pl; | |
3704 | else | |
3705 | { | |
86bc0974 | 3706 | if (os->sectype == noload_section |
061e65f8 ILT |
3707 | || os->bfd_section == NULL |
3708 | || (os->bfd_section->flags & SEC_ALLOC) == 0) | |
3709 | continue; | |
3710 | pl = last; | |
3711 | } | |
3712 | ||
3713 | if (os->bfd_section == NULL) | |
3714 | continue; | |
3715 | ||
3716 | for (; pl != NULL; pl = pl->next) | |
3717 | { | |
3718 | if (strcmp (pl->name, l->name) == 0) | |
3719 | { | |
3720 | if (c >= alc) | |
3721 | { | |
3722 | alc *= 2; | |
c5a0d31a ILT |
3723 | secs = ((asection **) |
3724 | xrealloc (secs, alc * sizeof (asection *))); | |
061e65f8 ILT |
3725 | } |
3726 | secs[c] = os->bfd_section; | |
3727 | ++c; | |
3728 | pl->used = true; | |
3729 | } | |
3730 | } | |
3731 | } | |
3732 | ||
708f7fbc ILT |
3733 | if (l->flags == NULL) |
3734 | flags = 0; | |
3735 | else | |
3736 | flags = exp_get_vma (l->flags, 0, "phdr flags", | |
3737 | lang_final_phase_enum); | |
3738 | ||
061e65f8 ILT |
3739 | if (l->at == NULL) |
3740 | at = 0; | |
3741 | else | |
3742 | at = exp_get_vma (l->at, 0, "phdr load address", | |
3743 | lang_final_phase_enum); | |
708f7fbc ILT |
3744 | |
3745 | if (! bfd_record_phdr (output_bfd, l->type, | |
3746 | l->flags == NULL ? false : true, | |
3747 | flags, | |
061e65f8 | 3748 | l->at == NULL ? false : true, |
708f7fbc | 3749 | at, l->filehdr, l->phdrs, c, secs)) |
061e65f8 ILT |
3750 | einfo ("%F%P: bfd_record_phdr failed: %E\n"); |
3751 | } | |
3752 | ||
3753 | free (secs); | |
3754 | ||
3755 | /* Make sure all the phdr assignments succeeded. */ | |
3756 | for (u = lang_output_section_statement.head; | |
3757 | u != NULL; | |
3758 | u = u->output_section_statement.next) | |
3759 | { | |
3760 | struct lang_output_section_phdr_list *pl; | |
3761 | ||
3762 | if (u->output_section_statement.bfd_section == NULL) | |
3763 | continue; | |
3764 | ||
3765 | for (pl = u->output_section_statement.phdrs; | |
3766 | pl != NULL; | |
3767 | pl = pl->next) | |
3768 | if (! pl->used && strcmp (pl->name, "NONE") != 0) | |
3769 | einfo ("%X%P: section `%s' assigned to non-existent phdr `%s'\n", | |
3770 | u->output_section_statement.name, pl->name); | |
3771 | } | |
3772 | } | |
582dd77f ILT |
3773 | |
3774 | /* Record a list of sections which may not be cross referenced. */ | |
3775 | ||
3776 | void | |
3777 | lang_add_nocrossref (l) | |
3778 | struct lang_nocrossref *l; | |
3779 | { | |
3780 | struct lang_nocrossrefs *n; | |
3781 | ||
3782 | n = (struct lang_nocrossrefs *) xmalloc (sizeof *n); | |
3783 | n->next = nocrossref_list; | |
3784 | n->list = l; | |
3785 | nocrossref_list = n; | |
3786 | ||
3787 | /* Set notice_all so that we get informed about all symbols. */ | |
3788 | link_info.notice_all = true; | |
3789 | } | |
d22ec3b0 ILT |
3790 | \f |
3791 | /* Overlay handling. We handle overlays with some static variables. */ | |
3792 | ||
3793 | /* The overlay virtual address. */ | |
3794 | static etree_type *overlay_vma; | |
3795 | ||
3796 | /* The overlay load address. */ | |
3797 | static etree_type *overlay_lma; | |
3798 | ||
c5a0d31a ILT |
3799 | /* Whether nocrossrefs is set for this overlay. */ |
3800 | static int overlay_nocrossrefs; | |
3801 | ||
d22ec3b0 ILT |
3802 | /* An expression for the maximum section size seen so far. */ |
3803 | static etree_type *overlay_max; | |
3804 | ||
3805 | /* A list of all the sections in this overlay. */ | |
3806 | ||
3807 | struct overlay_list | |
3808 | { | |
3809 | struct overlay_list *next; | |
3810 | lang_output_section_statement_type *os; | |
3811 | }; | |
3812 | ||
3813 | static struct overlay_list *overlay_list; | |
3814 | ||
3815 | /* Start handling an overlay. */ | |
3816 | ||
3817 | void | |
c5a0d31a | 3818 | lang_enter_overlay (vma_expr, lma_expr, nocrossrefs) |
d22ec3b0 ILT |
3819 | etree_type *vma_expr; |
3820 | etree_type *lma_expr; | |
c5a0d31a | 3821 | int nocrossrefs; |
d22ec3b0 ILT |
3822 | { |
3823 | /* The grammar should prevent nested overlays from occurring. */ | |
3824 | ASSERT (overlay_vma == NULL | |
3825 | && overlay_lma == NULL | |
3826 | && overlay_list == NULL | |
3827 | && overlay_max == NULL); | |
3828 | ||
3829 | overlay_vma = vma_expr; | |
3830 | overlay_lma = lma_expr; | |
c5a0d31a | 3831 | overlay_nocrossrefs = nocrossrefs; |
d22ec3b0 ILT |
3832 | } |
3833 | ||
3834 | /* Start a section in an overlay. We handle this by calling | |
3835 | lang_enter_output_section_statement with the correct VMA and LMA. */ | |
3836 | ||
3837 | void | |
3838 | lang_enter_overlay_section (name) | |
3839 | const char *name; | |
3840 | { | |
3841 | struct overlay_list *n; | |
3842 | etree_type *size; | |
3843 | ||
3844 | lang_enter_output_section_statement (name, overlay_vma, normal_section, | |
3845 | 0, 0, 0, overlay_lma); | |
3846 | ||
3847 | /* If this is the first section, then base the VMA and LMA of future | |
3848 | sections on this one. This will work correctly even if `.' is | |
3849 | used in the addresses. */ | |
3850 | if (overlay_list == NULL) | |
3851 | { | |
3852 | overlay_vma = exp_nameop (ADDR, name); | |
3853 | overlay_lma = exp_nameop (LOADADDR, name); | |
3854 | } | |
3855 | ||
3856 | /* Remember the section. */ | |
3857 | n = (struct overlay_list *) xmalloc (sizeof *n); | |
3858 | n->os = current_section; | |
3859 | n->next = overlay_list; | |
3860 | overlay_list = n; | |
3861 | ||
3862 | size = exp_nameop (SIZEOF, name); | |
3863 | ||
3864 | /* Adjust the LMA for the next section. */ | |
3865 | overlay_lma = exp_binop ('+', overlay_lma, size); | |
3866 | ||
3867 | /* Arrange to work out the maximum section end address. */ | |
3868 | if (overlay_max == NULL) | |
3869 | overlay_max = size; | |
3870 | else | |
3871 | overlay_max = exp_binop (MAX, overlay_max, size); | |
3872 | } | |
3873 | ||
3874 | /* Finish a section in an overlay. There isn't any special to do | |
3875 | here. */ | |
3876 | ||
3877 | void | |
3878 | lang_leave_overlay_section (fill, phdrs) | |
3879 | bfd_vma fill; | |
3880 | struct lang_output_section_phdr_list *phdrs; | |
3881 | { | |
3882 | const char *name; | |
3883 | char *clean, *s2; | |
3884 | const char *s1; | |
3885 | char *buf; | |
3886 | ||
3887 | name = current_section->name; | |
3888 | ||
3889 | lang_leave_output_section_statement (fill, "*default*", phdrs); | |
3890 | ||
3891 | /* Define the magic symbols. */ | |
3892 | ||
3893 | clean = xmalloc (strlen (name) + 1); | |
3894 | s2 = clean; | |
3895 | for (s1 = name; *s1 != '\0'; s1++) | |
3896 | if (isalnum (*s1) || *s1 == '_') | |
3897 | *s2++ = *s1; | |
3898 | *s2 = '\0'; | |
3899 | ||
3900 | buf = xmalloc (strlen (clean) + sizeof "__load_start_"); | |
3901 | sprintf (buf, "__load_start_%s", clean); | |
3902 | lang_add_assignment (exp_assop ('=', buf, | |
3903 | exp_nameop (LOADADDR, name))); | |
3904 | ||
3905 | buf = xmalloc (strlen (clean) + sizeof "__load_stop_"); | |
3906 | sprintf (buf, "__load_stop_%s", clean); | |
3907 | lang_add_assignment (exp_assop ('=', buf, | |
3908 | exp_binop ('+', | |
3909 | exp_nameop (LOADADDR, name), | |
3910 | exp_nameop (SIZEOF, name)))); | |
3911 | ||
3912 | free (clean); | |
3913 | } | |
3914 | ||
3915 | /* Finish an overlay. If there are any overlay wide settings, this | |
3916 | looks through all the sections in the overlay and sets them. */ | |
3917 | ||
3918 | void | |
3919 | lang_leave_overlay (fill, memspec, phdrs) | |
3920 | bfd_vma fill; | |
3921 | const char *memspec; | |
3922 | struct lang_output_section_phdr_list *phdrs; | |
3923 | { | |
3924 | lang_memory_region_type *region; | |
3925 | struct overlay_list *l; | |
3926 | struct lang_nocrossref *nocrossref; | |
3927 | ||
3928 | if (memspec == NULL) | |
3929 | region = NULL; | |
3930 | else | |
3931 | region = lang_memory_region_lookup (memspec); | |
3932 | ||
3933 | nocrossref = NULL; | |
3934 | ||
3935 | l = overlay_list; | |
3936 | while (l != NULL) | |
3937 | { | |
d22ec3b0 ILT |
3938 | struct overlay_list *next; |
3939 | ||
3940 | if (fill != 0 && l->os->fill == 0) | |
3941 | l->os->fill = fill; | |
3942 | if (region != NULL && l->os->region == NULL) | |
3943 | l->os->region = region; | |
3944 | if (phdrs != NULL && l->os->phdrs == NULL) | |
3945 | l->os->phdrs = phdrs; | |
3946 | ||
c5a0d31a ILT |
3947 | if (overlay_nocrossrefs) |
3948 | { | |
3949 | struct lang_nocrossref *nc; | |
3950 | ||
3951 | nc = (struct lang_nocrossref *) xmalloc (sizeof *nc); | |
3952 | nc->name = l->os->name; | |
3953 | nc->next = nocrossref; | |
3954 | nocrossref = nc; | |
3955 | } | |
d22ec3b0 ILT |
3956 | |
3957 | next = l->next; | |
3958 | free (l); | |
3959 | l = next; | |
3960 | } | |
3961 | ||
3962 | if (nocrossref != NULL) | |
3963 | lang_add_nocrossref (nocrossref); | |
3964 | ||
3965 | /* Update . for the end of the overlay. */ | |
3966 | lang_add_assignment (exp_assop ('=', ".", | |
3967 | exp_binop ('+', overlay_vma, overlay_max))); | |
3968 | ||
3969 | overlay_vma = NULL; | |
3970 | overlay_lma = NULL; | |
c5a0d31a | 3971 | overlay_nocrossrefs = 0; |
d22ec3b0 ILT |
3972 | overlay_list = NULL; |
3973 | overlay_max = NULL; | |
3974 | } | |
c5a0d31a ILT |
3975 | \f |
3976 | /* Version handling. This is only useful for ELF. */ | |
3977 | ||
3978 | /* This global variable holds the version tree that we build. */ | |
3979 | ||
3980 | struct bfd_elf_version_tree *lang_elf_version_info; | |
3981 | ||
3982 | /* This is called for each variable name or match expression. */ | |
3983 | ||
3984 | struct bfd_elf_version_expr * | |
3985 | lang_new_vers_regex (orig, new) | |
3986 | struct bfd_elf_version_expr *orig; | |
3987 | const char *new; | |
3988 | { | |
3989 | struct bfd_elf_version_expr *ret; | |
3990 | ||
3991 | ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret); | |
3992 | ret->next = orig; | |
3993 | ret->match = new; | |
3994 | return ret; | |
3995 | } | |
3996 | ||
3997 | /* This is called for each set of variable names and match | |
3998 | expressions. */ | |
3999 | ||
4000 | struct bfd_elf_version_tree * | |
4001 | lang_new_vers_node (globals, locals) | |
4002 | struct bfd_elf_version_expr *globals; | |
4003 | struct bfd_elf_version_expr *locals; | |
4004 | { | |
4005 | struct bfd_elf_version_tree *ret; | |
4006 | ||
4007 | ret = (struct bfd_elf_version_tree *) xmalloc (sizeof *ret); | |
4008 | ret->next = NULL; | |
4009 | ret->name = NULL; | |
4010 | ret->vernum = 0; | |
4011 | ret->globals = globals; | |
4012 | ret->locals = locals; | |
4013 | ret->deps = NULL; | |
4014 | ret->name_indx = (unsigned int) -1; | |
4015 | ret->used = 0; | |
4016 | return ret; | |
4017 | } | |
4018 | ||
4019 | /* This static variable keeps track of version indices. */ | |
4020 | ||
4021 | static int version_index; | |
4022 | ||
4023 | /* This is called when we know the name and dependencies of the | |
4024 | version. */ | |
4025 | ||
4026 | void | |
4027 | lang_register_vers_node (name, version, deps) | |
4028 | const char *name; | |
4029 | struct bfd_elf_version_tree *version; | |
4030 | struct bfd_elf_version_deps *deps; | |
4031 | { | |
4032 | struct bfd_elf_version_tree *t, **pp; | |
4033 | struct bfd_elf_version_expr *e1; | |
4034 | ||
4035 | /* Make sure this node has a unique name. */ | |
4036 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
4037 | if (strcmp (t->name, name) == 0) | |
4038 | einfo ("%X%P: duplicate version tag `%s'\n", name); | |
4039 | ||
4040 | /* Check the global and local match names, and make sure there | |
4041 | aren't any duplicates. */ | |
4042 | ||
4043 | for (e1 = version->globals; e1 != NULL; e1 = e1->next) | |
4044 | { | |
4045 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
4046 | { | |
4047 | struct bfd_elf_version_expr *e2; | |
4048 | ||
c5a0d31a ILT |
4049 | for (e2 = t->locals; e2 != NULL; e2 = e2->next) |
4050 | if (strcmp (e1->match, e2->match) == 0) | |
4051 | einfo ("%X%P: duplicate expression `%s' in version information\n", | |
4052 | e1->match); | |
4053 | } | |
4054 | } | |
4055 | ||
4056 | for (e1 = version->locals; e1 != NULL; e1 = e1->next) | |
4057 | { | |
4058 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
4059 | { | |
4060 | struct bfd_elf_version_expr *e2; | |
4061 | ||
4062 | for (e2 = t->globals; e2 != NULL; e2 = e2->next) | |
4063 | if (strcmp (e1->match, e2->match) == 0) | |
4064 | einfo ("%X%P: duplicate expression `%s' in version information\n", | |
4065 | e1->match); | |
c5a0d31a ILT |
4066 | } |
4067 | } | |
4068 | ||
4069 | version->deps = deps; | |
4070 | version->name = name; | |
4071 | ++version_index; | |
4072 | version->vernum = version_index; | |
4073 | ||
4074 | for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next) | |
4075 | ; | |
4076 | *pp = version; | |
4077 | } | |
4078 | ||
4079 | /* This is called when we see a version dependency. */ | |
4080 | ||
4081 | struct bfd_elf_version_deps * | |
4082 | lang_add_vers_depend (list, name) | |
4083 | struct bfd_elf_version_deps *list; | |
4084 | const char *name; | |
4085 | { | |
4086 | struct bfd_elf_version_deps *ret; | |
4087 | struct bfd_elf_version_tree *t; | |
4088 | ||
4089 | ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret); | |
4090 | ret->next = list; | |
4091 | ||
4092 | for (t = lang_elf_version_info; t != NULL; t = t->next) | |
4093 | { | |
4094 | if (strcmp (t->name, name) == 0) | |
4095 | { | |
4096 | ret->version_needed = t; | |
4097 | return ret; | |
4098 | } | |
4099 | } | |
4100 | ||
4101 | einfo ("%X%P: unable to find version dependency `%s'\n", name); | |
4102 | ||
4103 | return ret; | |
4104 | } |