Commit | Line | Data |
---|---|---|
e20873a7 | 1 | /* Linker command language support. |
e802f0be | 2 | Copyright (C) 1991, 92, 93, 94, 1995 Free Software Foundation, Inc. |
075d7359 | 3 | |
2fa0b342 DHW |
4 | This file is part of GLD, the Gnu Linker. |
5 | ||
6 | GLD is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GLD is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GLD; see the file COPYING. If not, write to | |
943fbd5b | 18 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
2fa0b342 | 19 | |
2fa0b342 | 20 | #include "bfd.h" |
075d7359 | 21 | #include "sysdep.h" |
4c2123b6 | 22 | #include "libiberty.h" |
c477527c | 23 | #include "bfdlink.h" |
2fa0b342 DHW |
24 | |
25 | #include "ld.h" | |
fcf276c4 | 26 | #include "ldmain.h" |
7bc4a0d7 | 27 | #include "ldgram.h" |
2fa0b342 | 28 | #include "ldexp.h" |
fcf276c4 | 29 | #include "ldlang.h" |
8c514453 | 30 | #include "ldemul.h" |
2fa0b342 | 31 | #include "ldlex.h" |
3f8d46e7 | 32 | #include "ldmisc.h" |
c611e285 | 33 | #include "ldctor.h" |
fcf276c4 | 34 | #include "ldfile.h" |
b98bd3db | 35 | |
2fa0b342 | 36 | /* FORWARDS */ |
e20873a7 JG |
37 | static void print_statements PARAMS ((void)); |
38 | static void print_statement PARAMS ((lang_statement_union_type *, | |
075d7359 | 39 | lang_output_section_statement_type *)); |
5af8e9d6 KR |
40 | static lang_statement_union_type *new_statement PARAMS ((enum statement_enum, |
41 | size_t, | |
42 | lang_statement_list_type*)); | |
43 | ||
2fa0b342 | 44 | |
d4c02e29 | 45 | /* LOCALS */ |
bfbdc80f | 46 | static struct obstack stat_obstack; |
075d7359 | 47 | |
0b2f8d2e | 48 | #define obstack_chunk_alloc xmalloc |
bfbdc80f | 49 | #define obstack_chunk_free free |
075d7359 | 50 | static CONST char *startup_file; |
d4c02e29 SC |
51 | static lang_statement_list_type input_file_chain; |
52 | static boolean placed_commons = false; | |
53 | static lang_output_section_statement_type *default_common_section; | |
54 | static boolean map_option_f; | |
55 | static bfd_vma print_dot; | |
56 | static lang_input_statement_type *first_file; | |
57 | static lang_statement_list_type lang_output_section_statement; | |
58 | static CONST char *current_target; | |
59 | static CONST char *output_target; | |
fcf276c4 | 60 | static int longest_section_name = 8; |
d4c02e29 | 61 | static lang_statement_list_type statement_list; |
ffc50032 | 62 | |
9f629407 ILT |
63 | static void print_size PARAMS ((size_t value)); |
64 | static void print_alignment PARAMS ((unsigned int value)); | |
65 | static void print_fill PARAMS ((fill_type value)); | |
66 | static void print_section PARAMS ((const char *name)); | |
67 | static void lang_for_each_statement_worker | |
68 | PARAMS ((void (*func) (lang_statement_union_type *), | |
69 | lang_statement_union_type *s)); | |
70 | static lang_input_statement_type *new_afile | |
71 | PARAMS ((const char *name, lang_input_file_enum_type file_type, | |
193c5f93 | 72 | const char *target, boolean add_to_list)); |
9f629407 ILT |
73 | static void print_flags PARAMS ((int *ignore_flags)); |
74 | static void init_os PARAMS ((lang_output_section_statement_type *s)); | |
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 *)); | |
9f629407 ILT |
82 | static void wild PARAMS ((lang_wild_statement_type *s, |
83 | const char *section, const char *file, | |
84 | const char *target, | |
85 | lang_output_section_statement_type *output)); | |
86 | static bfd *open_output PARAMS ((const char *name)); | |
87 | static void ldlang_open_output PARAMS ((lang_statement_union_type *statement)); | |
309c8153 ILT |
88 | static void open_input_bfds |
89 | PARAMS ((lang_statement_union_type *statement, boolean)); | |
9f629407 ILT |
90 | static void lang_reasonable_defaults PARAMS ((void)); |
91 | static void lang_place_undefineds PARAMS ((void)); | |
9f629407 ILT |
92 | static void map_input_to_output_sections |
93 | PARAMS ((lang_statement_union_type *s, | |
94 | const char *target, | |
95 | lang_output_section_statement_type *output_section_statement)); | |
96 | static void print_output_section_statement | |
97 | PARAMS ((lang_output_section_statement_type *output_section_statement)); | |
98 | static void print_assignment | |
99 | PARAMS ((lang_assignment_statement_type *assignment, | |
100 | lang_output_section_statement_type *output_section)); | |
101 | static void print_input_statement PARAMS ((lang_input_statement_type *statm)); | |
9f629407 ILT |
102 | static void print_input_section PARAMS ((lang_input_section_type *in)); |
103 | static void print_fill_statement PARAMS ((lang_fill_statement_type *fill)); | |
104 | static void print_data_statement PARAMS ((lang_data_statement_type *data)); | |
4fdbafb2 | 105 | static void print_reloc_statement PARAMS ((lang_reloc_statement_type *reloc)); |
9f629407 ILT |
106 | static void print_padding_statement PARAMS ((lang_padding_statement_type *s)); |
107 | static void print_wild_statement | |
108 | PARAMS ((lang_wild_statement_type *w, | |
109 | lang_output_section_statement_type *os)); | |
309c8153 ILT |
110 | static void print_group |
111 | PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *)); | |
9f629407 ILT |
112 | static void print_statement PARAMS ((lang_statement_union_type *s, |
113 | lang_output_section_statement_type *os)); | |
114 | static void print_statements PARAMS ((void)); | |
115 | static bfd_vma insert_pad PARAMS ((lang_statement_union_type **this_ptr, | |
116 | fill_type fill, unsigned int power, | |
117 | asection *output_section_statement, | |
118 | bfd_vma dot)); | |
119 | static bfd_vma size_input_section | |
120 | PARAMS ((lang_statement_union_type **this_ptr, | |
121 | lang_output_section_statement_type *output_section_statement, | |
c477527c | 122 | fill_type fill, bfd_vma dot, boolean relax)); |
9f629407 ILT |
123 | static void lang_finish PARAMS ((void)); |
124 | static void lang_check PARAMS ((void)); | |
125 | static void lang_common PARAMS ((void)); | |
c477527c | 126 | static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR)); |
9f629407 ILT |
127 | static void lang_place_orphans PARAMS ((void)); |
128 | static int topower PARAMS ((int)); | |
1d169acc | 129 | static void lang_set_startof PARAMS ((void)); |
9f629407 ILT |
130 | static void reset_memory_regions PARAMS ((void)); |
131 | ||
2fa0b342 | 132 | /* EXPORTS */ |
ffc50032 | 133 | lang_output_section_statement_type *abs_output_section; |
d4c02e29 | 134 | lang_statement_list_type *stat_ptr = &statement_list; |
a4d2a48e | 135 | lang_statement_list_type file_chain = { 0 }; |
60e8a534 | 136 | static const char *entry_symbol = 0; |
d4c02e29 | 137 | boolean lang_has_input_file = false; |
d4c02e29 SC |
138 | boolean had_output_filename = false; |
139 | boolean lang_float_flag = false; | |
97fbbaca | 140 | boolean delete_output_file_on_failure = false; |
075d7359 | 141 | |
9fce28ed SC |
142 | etree_type *base; /* Relocation base - or null */ |
143 | ||
144 | ||
b897ed67 | 145 | #if defined(__STDC__) || defined(ALMOST_STDC) |
2fa0b342 DHW |
146 | #define cat(a,b) a##b |
147 | #else | |
148 | #define cat(a,b) a/**/b | |
149 | #endif | |
150 | ||
151 | #define new_stat(x,y) (cat(x,_type)*) new_statement(cat(x,_enum), sizeof(cat(x,_type)),y) | |
152 | ||
153 | #define outside_section_address(q) ( (q)->output_offset + (q)->output_section->vma) | |
154 | ||
155 | #define outside_symbol_address(q) ((q)->value + outside_section_address(q->section)) | |
156 | ||
bfbdc80f | 157 | PTR |
8ddef552 DM |
158 | stat_alloc (size) |
159 | size_t size; | |
bfbdc80f | 160 | { |
075d7359 | 161 | return obstack_alloc (&stat_obstack, size); |
bfbdc80f | 162 | } |
9f629407 | 163 | |
075d7359 | 164 | static void |
8ddef552 DM |
165 | print_size (value) |
166 | size_t value; | |
3f8d46e7 | 167 | { |
075d7359 | 168 | fprintf (config.map_file, "%5x", (unsigned) value); |
3f8d46e7 | 169 | } |
9f629407 | 170 | |
075d7359 | 171 | static void |
8ddef552 DM |
172 | print_alignment (value) |
173 | unsigned int value; | |
3f8d46e7 | 174 | { |
075d7359 | 175 | fprintf (config.map_file, "2**%1u", value); |
3f8d46e7 | 176 | } |
9f629407 | 177 | |
075d7359 | 178 | static void |
9f629407 ILT |
179 | print_fill (value) |
180 | fill_type value; | |
3f8d46e7 | 181 | { |
075d7359 | 182 | fprintf (config.map_file, "%04x", (unsigned) value); |
3f8d46e7 JG |
183 | } |
184 | ||
075d7359 | 185 | static void |
8ddef552 | 186 | print_section (name) |
9f629407 | 187 | CONST char *name; |
3f8d46e7 | 188 | { |
075d7359 | 189 | fprintf (config.map_file, "%*s", -longest_section_name, name); |
3f8d46e7 | 190 | } |
2fa0b342 | 191 | |
1418c83b SC |
192 | /*---------------------------------------------------------------------- |
193 | lang_for_each_statement walks the parse tree and calls the provided | |
194 | function for each node | |
195 | */ | |
196 | ||
075d7359 | 197 | static void |
8ddef552 | 198 | lang_for_each_statement_worker (func, s) |
c477527c | 199 | void (*func) PARAMS ((lang_statement_union_type *)); |
8ddef552 | 200 | lang_statement_union_type *s; |
1418c83b | 201 | { |
075d7359 SC |
202 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
203 | { | |
204 | func (s); | |
1418c83b | 205 | |
075d7359 SC |
206 | switch (s->header.type) |
207 | { | |
81016051 | 208 | case lang_constructors_statement_enum: |
075d7359 | 209 | lang_for_each_statement_worker (func, constructor_list.head); |
81016051 | 210 | break; |
1418c83b SC |
211 | case lang_output_section_statement_enum: |
212 | lang_for_each_statement_worker | |
075d7359 | 213 | (func, |
1418c83b SC |
214 | s->output_section_statement.children.head); |
215 | break; | |
216 | case lang_wild_statement_enum: | |
217 | lang_for_each_statement_worker | |
075d7359 | 218 | (func, |
1418c83b SC |
219 | s->wild_statement.children.head); |
220 | break; | |
309c8153 ILT |
221 | case lang_group_statement_enum: |
222 | lang_for_each_statement_worker (func, | |
223 | s->group_statement.children.head); | |
224 | break; | |
1418c83b | 225 | case lang_data_statement_enum: |
4fdbafb2 | 226 | case lang_reloc_statement_enum: |
1418c83b SC |
227 | case lang_object_symbols_statement_enum: |
228 | case lang_output_statement_enum: | |
229 | case lang_target_statement_enum: | |
230 | case lang_input_section_enum: | |
231 | case lang_input_statement_enum: | |
1418c83b SC |
232 | case lang_assignment_statement_enum: |
233 | case lang_padding_statement_enum: | |
234 | case lang_address_statement_enum: | |
235 | break; | |
236 | default: | |
075d7359 | 237 | FAIL (); |
1418c83b SC |
238 | break; |
239 | } | |
075d7359 | 240 | } |
1418c83b SC |
241 | } |
242 | ||
243 | void | |
8ddef552 | 244 | lang_for_each_statement (func) |
c477527c | 245 | void (*func) PARAMS ((lang_statement_union_type *)); |
1418c83b | 246 | { |
075d7359 SC |
247 | lang_for_each_statement_worker (func, |
248 | statement_list.head); | |
1418c83b | 249 | } |
075d7359 | 250 | |
1418c83b | 251 | /*----------------------------------------------------------------------*/ |
075d7359 | 252 | void |
8ddef552 DM |
253 | lang_list_init (list) |
254 | lang_statement_list_type *list; | |
2fa0b342 | 255 | { |
075d7359 SC |
256 | list->head = (lang_statement_union_type *) NULL; |
257 | list->tail = &list->head; | |
2fa0b342 DHW |
258 | } |
259 | ||
1418c83b | 260 | /*---------------------------------------------------------------------- |
075d7359 | 261 | |
1418c83b SC |
262 | build a new statement node for the parse tree |
263 | ||
264 | */ | |
2fa0b342 DHW |
265 | |
266 | static | |
075d7359 | 267 | lang_statement_union_type * |
8ddef552 DM |
268 | new_statement (type, size, list) |
269 | enum statement_enum type; | |
5af8e9d6 | 270 | size_t size; |
8ddef552 | 271 | lang_statement_list_type * list; |
2fa0b342 DHW |
272 | { |
273 | lang_statement_union_type *new = (lang_statement_union_type *) | |
075d7359 SC |
274 | stat_alloc (size); |
275 | ||
2fa0b342 | 276 | new->header.type = type; |
075d7359 SC |
277 | new->header.next = (lang_statement_union_type *) NULL; |
278 | lang_statement_append (list, new, &new->header.next); | |
2fa0b342 DHW |
279 | return new; |
280 | } | |
281 | ||
1418c83b SC |
282 | /* |
283 | Build a new input file node for the language. There are several ways | |
284 | in which we treat an input file, eg, we only look at symbols, or | |
285 | prefix it with a -l etc. | |
286 | ||
287 | We can be supplied with requests for input files more than once; | |
288 | they may, for example be split over serveral lines like foo.o(.text) | |
289 | foo.o(.data) etc, so when asked for a file we check that we havn't | |
290 | got it already so we don't duplicate the bfd. | |
291 | ||
292 | */ | |
2fa0b342 | 293 | static lang_input_statement_type * |
193c5f93 | 294 | new_afile (name, file_type, target, add_to_list) |
9f629407 ILT |
295 | CONST char *name; |
296 | lang_input_file_enum_type file_type; | |
297 | CONST char *target; | |
193c5f93 | 298 | boolean add_to_list; |
2fa0b342 | 299 | { |
193c5f93 | 300 | lang_input_statement_type *p; |
dc4726c2 | 301 | |
193c5f93 ILT |
302 | if (add_to_list) |
303 | p = new_stat (lang_input_statement, stat_ptr); | |
304 | else | |
305 | { | |
306 | p = ((lang_input_statement_type *) | |
307 | stat_alloc (sizeof (lang_input_statement_type))); | |
308 | p->header.next = NULL; | |
309 | } | |
075d7359 | 310 | |
2fa0b342 DHW |
311 | lang_has_input_file = true; |
312 | p->target = target; | |
ee4af9e8 | 313 | p->complained = false; |
075d7359 SC |
314 | switch (file_type) |
315 | { | |
316 | case lang_input_file_is_symbols_only_enum: | |
317 | p->filename = name; | |
318 | p->is_archive = false; | |
319 | p->real = true; | |
320 | p->local_sym_name = name; | |
321 | p->just_syms_flag = true; | |
322 | p->search_dirs_flag = false; | |
323 | break; | |
324 | case lang_input_file_is_fake_enum: | |
325 | p->filename = name; | |
326 | p->is_archive = false; | |
327 | p->real = false; | |
328 | p->local_sym_name = name; | |
329 | p->just_syms_flag = false; | |
330 | p->search_dirs_flag = false; | |
331 | break; | |
332 | case lang_input_file_is_l_enum: | |
333 | p->is_archive = true; | |
334 | p->filename = name; | |
335 | p->real = true; | |
ef76742f | 336 | p->local_sym_name = concat ("-l", name, (const char *) NULL); |
075d7359 SC |
337 | p->just_syms_flag = false; |
338 | p->search_dirs_flag = true; | |
339 | break; | |
075d7359 | 340 | case lang_input_file_is_marker_enum: |
193c5f93 ILT |
341 | p->filename = name; |
342 | p->is_archive = false; | |
343 | p->real = false; | |
344 | p->local_sym_name = name; | |
345 | p->just_syms_flag = false; | |
346 | p->search_dirs_flag = true; | |
347 | break; | |
348 | case lang_input_file_is_search_file_enum: | |
075d7359 SC |
349 | p->filename = name; |
350 | p->is_archive = false; | |
351 | p->real = true; | |
352 | p->local_sym_name = name; | |
353 | p->just_syms_flag = false; | |
354 | p->search_dirs_flag = true; | |
355 | break; | |
356 | case lang_input_file_is_file_enum: | |
357 | p->filename = name; | |
358 | p->is_archive = false; | |
359 | p->real = true; | |
360 | p->local_sym_name = name; | |
361 | p->just_syms_flag = false; | |
362 | p->search_dirs_flag = false; | |
363 | break; | |
364 | default: | |
365 | FAIL (); | |
366 | } | |
193c5f93 | 367 | p->the_bfd = (bfd *) NULL; |
075d7359 | 368 | p->asymbols = (asymbol **) NULL; |
075d7359 SC |
369 | p->next_real_file = (lang_statement_union_type *) NULL; |
370 | p->next = (lang_statement_union_type *) NULL; | |
2fa0b342 | 371 | p->symbol_count = 0; |
075d7359 | 372 | p->common_output_section = (asection *) NULL; |
1d169acc | 373 | p->dynamic = config.dynamic_link; |
5e6cd559 | 374 | p->loaded = false; |
075d7359 SC |
375 | lang_statement_append (&input_file_chain, |
376 | (lang_statement_union_type *) p, | |
377 | &p->next_real_file); | |
2fa0b342 DHW |
378 | return p; |
379 | } | |
380 | ||
381 | lang_input_statement_type * | |
8ddef552 DM |
382 | lang_add_input_file (name, file_type, target) |
383 | CONST char *name; | |
384 | lang_input_file_enum_type file_type; | |
385 | CONST char *target; | |
2fa0b342 | 386 | { |
1418c83b | 387 | lang_has_input_file = true; |
193c5f93 | 388 | return new_afile (name, file_type, target, true); |
2fa0b342 DHW |
389 | } |
390 | ||
1418c83b | 391 | /* Build enough state so that the parser can build its tree */ |
2fa0b342 | 392 | void |
8ddef552 | 393 | lang_init () |
2fa0b342 | 394 | { |
075d7359 | 395 | obstack_begin (&stat_obstack, 1000); |
2fa0b342 | 396 | |
075d7359 | 397 | stat_ptr = &statement_list; |
bfbdc80f | 398 | |
075d7359 | 399 | lang_list_init (stat_ptr); |
2fa0b342 | 400 | |
075d7359 SC |
401 | lang_list_init (&input_file_chain); |
402 | lang_list_init (&lang_output_section_statement); | |
403 | lang_list_init (&file_chain); | |
404 | first_file = lang_add_input_file ((char *) NULL, | |
405 | lang_input_file_is_marker_enum, | |
406 | (char *) NULL); | |
407 | abs_output_section = lang_output_section_statement_lookup (BFD_ABS_SECTION_NAME); | |
9d1fe8a4 | 408 | |
686739e2 | 409 | abs_output_section->bfd_section = bfd_abs_section_ptr; |
9d1fe8a4 | 410 | |
2fa0b342 DHW |
411 | } |
412 | ||
1418c83b | 413 | /*---------------------------------------------------------------------- |
075d7359 SC |
414 | A region is an area of memory declared with the |
415 | MEMORY { name:org=exp, len=exp ... } | |
416 | syntax. | |
2fa0b342 | 417 | |
1418c83b | 418 | We maintain a list of all the regions here |
2fa0b342 | 419 | |
1418c83b SC |
420 | If no regions are specified in the script, then the default is used |
421 | which is created when looked up to be the entire data space | |
2fa0b342 DHW |
422 | */ |
423 | ||
424 | static lang_memory_region_type *lang_memory_region_list; | |
425 | static lang_memory_region_type **lang_memory_region_list_tail = &lang_memory_region_list; | |
426 | ||
427 | lang_memory_region_type * | |
8ddef552 DM |
428 | lang_memory_region_lookup (name) |
429 | CONST char *CONST name; | |
2fa0b342 DHW |
430 | { |
431 | ||
075d7359 SC |
432 | lang_memory_region_type *p = lang_memory_region_list; |
433 | ||
1418c83b | 434 | for (p = lang_memory_region_list; |
075d7359 SC |
435 | p != (lang_memory_region_type *) NULL; |
436 | p = p->next) | |
437 | { | |
438 | if (strcmp (p->name, name) == 0) | |
439 | { | |
440 | return p; | |
441 | } | |
2fa0b342 | 442 | } |
075d7359 | 443 | if (strcmp (name, "*default*") == 0) |
2fa0b342 | 444 | { |
075d7359 SC |
445 | /* This is the default region, dig out first one on the list */ |
446 | if (lang_memory_region_list != (lang_memory_region_type *) NULL) | |
447 | { | |
448 | return lang_memory_region_list; | |
449 | } | |
2fa0b342 | 450 | } |
075d7359 SC |
451 | { |
452 | lang_memory_region_type *new = | |
1d169acc | 453 | (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type)); |
075d7359 SC |
454 | |
455 | new->name = buystring (name); | |
456 | new->next = (lang_memory_region_type *) NULL; | |
457 | ||
458 | *lang_memory_region_list_tail = new; | |
459 | lang_memory_region_list_tail = &new->next; | |
460 | new->origin = 0; | |
8ddef552 | 461 | new->length = ~(bfd_size_type)0; |
075d7359 SC |
462 | new->current = 0; |
463 | new->had_full_message = false; | |
464 | ||
465 | return new; | |
466 | } | |
2fa0b342 DHW |
467 | } |
468 | ||
469 | ||
2fa0b342 | 470 | lang_output_section_statement_type * |
8ddef552 DM |
471 | lang_output_section_find (name) |
472 | CONST char *CONST name; | |
2fa0b342 DHW |
473 | { |
474 | lang_statement_union_type *u; | |
475 | lang_output_section_statement_type *lookup; | |
476 | ||
477 | for (u = lang_output_section_statement.head; | |
075d7359 | 478 | u != (lang_statement_union_type *) NULL; |
2fa0b342 | 479 | u = lookup->next) |
075d7359 SC |
480 | { |
481 | lookup = &u->output_section_statement; | |
482 | if (strcmp (name, lookup->name) == 0) | |
483 | { | |
1418c83b SC |
484 | return lookup; |
485 | } | |
075d7359 SC |
486 | } |
487 | return (lang_output_section_statement_type *) NULL; | |
2fa0b342 DHW |
488 | } |
489 | ||
490 | lang_output_section_statement_type * | |
8ddef552 DM |
491 | lang_output_section_statement_lookup (name) |
492 | CONST char *CONST name; | |
2fa0b342 DHW |
493 | { |
494 | lang_output_section_statement_type *lookup; | |
2fa0b342 | 495 | |
075d7359 SC |
496 | lookup = lang_output_section_find (name); |
497 | if (lookup == (lang_output_section_statement_type *) NULL) | |
498 | { | |
2fa0b342 | 499 | |
075d7359 SC |
500 | lookup = (lang_output_section_statement_type *) |
501 | new_stat (lang_output_section_statement, stat_ptr); | |
502 | lookup->region = (lang_memory_region_type *) NULL; | |
503 | lookup->fill = 0; | |
504 | lookup->block_value = 1; | |
505 | lookup->name = name; | |
506 | ||
507 | lookup->next = (lang_statement_union_type *) NULL; | |
508 | lookup->bfd_section = (asection *) NULL; | |
509 | lookup->processed = false; | |
ae475b39 | 510 | lookup->loadable = 1; |
075d7359 SC |
511 | lookup->addr_tree = (etree_type *) NULL; |
512 | lang_list_init (&lookup->children); | |
513 | ||
1b8a42f3 ILT |
514 | lookup->memspec = (CONST char *) NULL; |
515 | lookup->flags = 0; | |
516 | lookup->subsection_alignment = -1; | |
517 | lookup->section_alignment = -1; | |
518 | lookup->load_base = (union etree_union *) NULL; | |
519 | ||
075d7359 SC |
520 | lang_statement_append (&lang_output_section_statement, |
521 | (lang_statement_union_type *) lookup, | |
522 | &lookup->next); | |
523 | } | |
524 | return lookup; | |
525 | } | |
2fa0b342 | 526 | |
9d1fe8a4 | 527 | /*ARGSUSED*/ |
2fa0b342 | 528 | static void |
8ddef552 DM |
529 | print_flags (ignore_flags) |
530 | int *ignore_flags; | |
2fa0b342 | 531 | { |
075d7359 | 532 | fprintf (config.map_file, "("); |
2fa0b342 | 533 | #if 0 |
075d7359 SC |
534 | if (flags->flag_read) |
535 | fprintf (outfile, "R"); | |
536 | if (flags->flag_write) | |
537 | fprintf (outfile, "W"); | |
538 | if (flags->flag_executable) | |
539 | fprintf (outfile, "X"); | |
540 | if (flags->flag_loadable) | |
541 | fprintf (outfile, "L"); | |
2fa0b342 | 542 | #endif |
ae475b39 | 543 | fprintf (config.map_file, ")"); |
2fa0b342 DHW |
544 | } |
545 | ||
546 | void | |
8ddef552 | 547 | lang_map () |
2fa0b342 DHW |
548 | { |
549 | lang_memory_region_type *m; | |
075d7359 SC |
550 | |
551 | fprintf (config.map_file, "**MEMORY CONFIGURATION**\n\n"); | |
48491e2e | 552 | #ifdef HOST_64_BIT |
075d7359 | 553 | fprintf (config.map_file, "name\t\torigin\t\tlength\t\tattributes\n"); |
48491e2e | 554 | #else |
ae475b39 SC |
555 | fprintf (config.map_file, |
556 | "name\t\torigin length r_size c_size is attributes\n"); | |
557 | ||
48491e2e | 558 | #endif |
2fa0b342 | 559 | for (m = lang_memory_region_list; |
075d7359 SC |
560 | m != (lang_memory_region_type *) NULL; |
561 | m = m->next) | |
2fa0b342 | 562 | { |
075d7359 SC |
563 | fprintf (config.map_file, "%-16s", m->name); |
564 | print_address (m->origin); | |
565 | print_space (); | |
8ddef552 | 566 | print_address ((bfd_vma)m->length); |
075d7359 | 567 | print_space (); |
8ddef552 | 568 | print_address ((bfd_vma)m->old_length); |
ae475b39 SC |
569 | print_space(); |
570 | print_address (m->current - m->origin); | |
571 | print_space(); | |
572 | if (m->old_length) | |
fcf276c4 ILT |
573 | fprintf (config.map_file, " %2d%% ", |
574 | (int) ((m->current - m->origin) * 100 / m->old_length)); | |
075d7359 SC |
575 | print_flags (&m->flags); |
576 | fprintf (config.map_file, "\n"); | |
2fa0b342 | 577 | } |
075d7359 SC |
578 | fprintf (config.map_file, "\n\n**LINK EDITOR MEMORY MAP**\n\n"); |
579 | fprintf (config.map_file, "output input virtual\n"); | |
580 | fprintf (config.map_file, "section section address tsize\n\n"); | |
2fa0b342 | 581 | |
075d7359 | 582 | print_statements (); |
2fa0b342 DHW |
583 | |
584 | } | |
585 | ||
586 | /* | |
587 | * | |
588 | */ | |
075d7359 | 589 | static void |
8ddef552 DM |
590 | init_os (s) |
591 | lang_output_section_statement_type * s; | |
2fa0b342 | 592 | { |
9d1fe8a4 SC |
593 | /* asection *section = bfd_get_section_by_name(output_bfd, s->name);*/ |
594 | section_userdata_type *new = | |
075d7359 | 595 | (section_userdata_type *) |
1d169acc | 596 | stat_alloc (sizeof (section_userdata_type)); |
075d7359 SC |
597 | |
598 | s->bfd_section = bfd_get_section_by_name (output_bfd, s->name); | |
599 | if (s->bfd_section == (asection *) NULL) | |
600 | s->bfd_section = bfd_make_section (output_bfd, s->name); | |
601 | if (s->bfd_section == (asection *) NULL) | |
602 | { | |
ddddcdf0 | 603 | einfo ("%P%F: output format %s cannot represent section called %s\n", |
075d7359 | 604 | output_bfd->xvec->name, s->name); |
9d1fe8a4 | 605 | } |
2fa0b342 | 606 | s->bfd_section->output_section = s->bfd_section; |
ae475b39 | 607 | /* s->bfd_section->flags = s->flags;*/ |
7bc4a0d7 | 608 | |
2fa0b342 DHW |
609 | /* We initialize an output sections output offset to minus its own */ |
610 | /* vma to allow us to output a section through itself */ | |
611 | s->bfd_section->output_offset = 0; | |
075d7359 | 612 | get_userdata (s->bfd_section) = (PTR) new; |
c611e285 | 613 | |
2fa0b342 DHW |
614 | } |
615 | ||
1418c83b SC |
616 | /*********************************************************************** |
617 | The wild routines. | |
618 | ||
619 | These expand statements like *(.text) and foo.o to a list of | |
620 | explicit actions, like foo.o(.text), bar.o(.text) and | |
621 | foo.o(.text,.data) . | |
622 | ||
623 | The toplevel routine, wild, takes a statement, section, file and | |
624 | target. If either the section or file is null it is taken to be the | |
625 | wildcard. Seperate lang_input_section statements are created for | |
626 | each part of the expanstion, and placed after the statement provided. | |
627 | ||
628 | */ | |
075d7359 | 629 | |
0b3499f6 | 630 | void |
8ddef552 DM |
631 | wild_doit (ptr, section, output, file) |
632 | lang_statement_list_type * ptr; | |
633 | asection * section; | |
634 | lang_output_section_statement_type * output; | |
635 | lang_input_statement_type * file; | |
2fa0b342 | 636 | { |
075d7359 | 637 | if (output->bfd_section == (asection *) NULL) |
ae475b39 | 638 | init_os (output); |
2fa0b342 | 639 | |
075d7359 SC |
640 | if (section != (asection *) NULL |
641 | && section->output_section == (asection *) NULL) | |
ae475b39 SC |
642 | { |
643 | /* Add a section reference to the list */ | |
644 | lang_input_section_type *new = new_stat (lang_input_section, ptr); | |
645 | ||
646 | new->section = section; | |
647 | new->ifile = file; | |
648 | section->output_section = output->bfd_section; | |
29f33467 | 649 | |
27f7237e ILT |
650 | /* We don't copy the SEC_NEVER_LOAD flag from an input section to |
651 | an output section, because we want to be able to include a | |
652 | SEC_NEVER_LOAD section in the middle of an otherwise loaded | |
653 | section (I don't know why we want to do this, but we do). | |
654 | build_link_order in ldwrite.c handles this case by turning the | |
655 | embedded SEC_NEVER_LOAD section into a fill. */ | |
656 | section->output_section->flags |= | |
657 | section->flags & (flagword) (~ SEC_NEVER_LOAD); | |
29f33467 | 658 | |
ae475b39 | 659 | if (!output->loadable) |
075d7359 | 660 | { |
29f33467 | 661 | /* Turn off load flag */ |
ae475b39 | 662 | output->bfd_section->flags &= ~SEC_LOAD; |
29f33467 | 663 | output->bfd_section->flags |= SEC_NEVER_LOAD; |
ae475b39 SC |
664 | } |
665 | if (section->alignment_power > output->bfd_section->alignment_power) | |
666 | { | |
667 | output->bfd_section->alignment_power = section->alignment_power; | |
075d7359 | 668 | } |
e20873a7 JG |
669 | /* If supplied an aligmnet, then force it */ |
670 | if (output->section_alignment != -1) | |
671 | { | |
672 | output->bfd_section->alignment_power = output->section_alignment; | |
673 | } | |
ae475b39 | 674 | } |
2fa0b342 DHW |
675 | } |
676 | ||
075d7359 | 677 | static void |
8ddef552 | 678 | wild_section (ptr, section, file, output) |
309c8153 ILT |
679 | lang_wild_statement_type *ptr; |
680 | const char *section; | |
681 | lang_input_statement_type *file; | |
682 | lang_output_section_statement_type *output; | |
2fa0b342 | 683 | { |
075d7359 SC |
684 | if (file->just_syms_flag == false) |
685 | { | |
309c8153 ILT |
686 | register asection *s; |
687 | ||
688 | for (s = file->the_bfd->sections; s != NULL; s = s->next) | |
075d7359 | 689 | { |
309c8153 ILT |
690 | /* Attach all sections named SECTION. If SECTION is NULL, |
691 | then attach all sections. | |
692 | ||
693 | Previously, if SECTION was NULL, this code did not call | |
694 | wild_doit if the SEC_IS_COMMON flag was set for the | |
695 | section. I did not understand that, and I took it out. | |
696 | --ian@cygnus.com. */ | |
697 | ||
698 | if (section == NULL | |
699 | || strcmp (bfd_get_section_name (file->the_bfd, s), | |
700 | section) == 0) | |
f9d3d71a | 701 | wild_doit (&ptr->children, s, output, file); |
075d7359 | 702 | } |
2fa0b342 | 703 | } |
2fa0b342 DHW |
704 | } |
705 | ||
1418c83b SC |
706 | /* passed a file name (which must have been seen already and added to |
707 | the statement tree. We will see if it has been opened already and | |
708 | had its symbols read. If not then we'll read it. | |
2fa0b342 | 709 | |
1418c83b SC |
710 | Archives are pecuilar here. We may open them once, but if they do |
711 | not define anything we need at the time, they won't have all their | |
309c8153 | 712 | symbols read. If we need them later, we'll have to redo it. */ |
193c5f93 ILT |
713 | static lang_input_statement_type * |
714 | lookup_name (name) | |
9f629407 | 715 | CONST char *name; |
2fa0b342 DHW |
716 | { |
717 | lang_input_statement_type *search; | |
075d7359 SC |
718 | |
719 | for (search = (lang_input_statement_type *) input_file_chain.head; | |
720 | search != (lang_input_statement_type *) NULL; | |
721 | search = (lang_input_statement_type *) search->next_real_file) | |
722 | { | |
723 | if (search->filename == (char *) NULL && name == (char *) NULL) | |
c477527c ILT |
724 | return search; |
725 | if (search->filename != (char *) NULL | |
726 | && name != (char *) NULL | |
727 | && strcmp (search->filename, name) == 0) | |
728 | break; | |
075d7359 | 729 | } |
2fa0b342 | 730 | |
c477527c | 731 | if (search == (lang_input_statement_type *) NULL) |
193c5f93 ILT |
732 | search = new_afile (name, lang_input_file_is_file_enum, default_target, |
733 | false); | |
c477527c | 734 | |
5e6cd559 ILT |
735 | /* If we have already added this file, or this file is not real |
736 | (FIXME: can that ever actually happen?) or the name is NULL | |
737 | (FIXME: can that ever actually happen?) don't add this file. */ | |
193c5f93 | 738 | if (search->loaded |
5e6cd559 ILT |
739 | || ! search->real |
740 | || search->filename == (const char *) NULL) | |
741 | return search; | |
742 | ||
6a02a973 | 743 | load_symbols (search, (lang_statement_list_type *) NULL); |
193c5f93 ILT |
744 | |
745 | return search; | |
746 | } | |
747 | ||
748 | /* Get the symbols for an input file. */ | |
c477527c | 749 | |
193c5f93 | 750 | static void |
6a02a973 | 751 | load_symbols (entry, place) |
193c5f93 | 752 | lang_input_statement_type *entry; |
6a02a973 | 753 | lang_statement_list_type *place; |
193c5f93 | 754 | { |
0b3499f6 ILT |
755 | char **matching; |
756 | ||
193c5f93 ILT |
757 | if (entry->loaded) |
758 | return; | |
759 | ||
760 | ldfile_open_file (entry); | |
761 | ||
0b3499f6 ILT |
762 | if (! bfd_check_format (entry->the_bfd, bfd_archive) |
763 | && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching)) | |
764 | { | |
765 | bfd_error_type err; | |
6a02a973 | 766 | lang_statement_list_type *hold; |
0b3499f6 ILT |
767 | |
768 | err = bfd_get_error (); | |
769 | if (err == bfd_error_file_ambiguously_recognized) | |
770 | { | |
771 | char **p; | |
772 | ||
773 | einfo ("%B: file not recognized: %E\n", entry->the_bfd); | |
774 | einfo ("%B: matching formats:", entry->the_bfd); | |
775 | for (p = matching; *p != NULL; p++) | |
776 | einfo (" %s", *p); | |
777 | einfo ("%F\n"); | |
778 | } | |
6a02a973 ILT |
779 | else if (err != bfd_error_file_not_recognized |
780 | || place == NULL) | |
0b3499f6 ILT |
781 | einfo ("%F%B: file not recognized: %E\n", entry->the_bfd); |
782 | ||
783 | /* Try to interpret the file as a linker script. */ | |
784 | ||
785 | bfd_close (entry->the_bfd); | |
786 | entry->the_bfd = NULL; | |
787 | ||
788 | ldfile_open_command_file (entry->filename); | |
789 | ||
6a02a973 ILT |
790 | hold = stat_ptr; |
791 | stat_ptr = place; | |
792 | ||
0b3499f6 ILT |
793 | ldfile_assumed_script = true; |
794 | parser_input = input_script; | |
795 | yyparse (); | |
796 | ldfile_assumed_script = false; | |
797 | ||
6a02a973 ILT |
798 | stat_ptr = hold; |
799 | ||
0b3499f6 ILT |
800 | return; |
801 | } | |
802 | ||
803 | /* We don't call ldlang_add_file for an archive. Instead, the | |
804 | add_symbols entry point will call ldlang_add_file, via the | |
805 | add_archive_element callback, for each element of the archive | |
806 | which is used. */ | |
f400bbbb | 807 | switch (bfd_get_format (entry->the_bfd)) |
5e6cd559 | 808 | { |
f400bbbb ILT |
809 | default: |
810 | break; | |
811 | ||
812 | case bfd_object: | |
193c5f93 | 813 | ldlang_add_file (entry); |
5e6cd559 | 814 | if (trace_files || trace_file_tries) |
193c5f93 | 815 | info_msg ("%I\n", entry); |
f400bbbb ILT |
816 | break; |
817 | ||
818 | case bfd_archive: | |
819 | if (whole_archive) | |
820 | { | |
821 | bfd *member = bfd_openr_next_archived_file (entry->the_bfd, | |
822 | (bfd *) NULL); | |
823 | while (member != NULL) | |
824 | { | |
825 | if (! bfd_check_format (member, bfd_object)) | |
826 | einfo ("%F%B: object %B in archive is not object\n", | |
827 | entry->the_bfd, member); | |
828 | if (! ((*link_info.callbacks->add_archive_element) | |
829 | (&link_info, member, "-whole-archive"))) | |
830 | abort (); | |
831 | if (! bfd_link_add_symbols (member, &link_info)) | |
832 | einfo ("%F%B: could not read symbols: %E\n", member); | |
833 | member = bfd_openr_next_archived_file (entry->the_bfd, | |
834 | member); | |
835 | } | |
836 | ||
837 | entry->loaded = true; | |
838 | ||
839 | return; | |
840 | } | |
5e6cd559 | 841 | } |
1418c83b | 842 | |
0b3499f6 | 843 | if (! bfd_link_add_symbols (entry->the_bfd, &link_info)) |
193c5f93 | 844 | einfo ("%F%B: could not read symbols: %E\n", entry->the_bfd); |
5e6cd559 | 845 | |
193c5f93 | 846 | entry->loaded = true; |
2fa0b342 DHW |
847 | } |
848 | ||
849 | static void | |
8ddef552 DM |
850 | wild (s, section, file, target, output) |
851 | lang_wild_statement_type * s; | |
9f629407 ILT |
852 | CONST char *section; |
853 | CONST char *file; | |
854 | CONST char *target; | |
8ddef552 | 855 | lang_output_section_statement_type * output; |
2fa0b342 DHW |
856 | { |
857 | lang_input_statement_type *f; | |
075d7359 SC |
858 | |
859 | if (file == (char *) NULL) | |
860 | { | |
861 | /* Perform the iteration over all files in the list */ | |
862 | for (f = (lang_input_statement_type *) file_chain.head; | |
863 | f != (lang_input_statement_type *) NULL; | |
864 | f = (lang_input_statement_type *) f->next) | |
865 | { | |
866 | wild_section (s, section, f, output); | |
867 | } | |
868 | } | |
869 | else | |
870 | { | |
871 | /* Perform the iteration over a single file */ | |
193c5f93 | 872 | wild_section (s, section, lookup_name (file), output); |
075d7359 SC |
873 | } |
874 | if (section != (char *) NULL | |
875 | && strcmp (section, "COMMON") == 0 | |
876 | && default_common_section == (lang_output_section_statement_type *) NULL) | |
877 | { | |
878 | /* Remember the section that common is going to incase we later | |
879 | get something which doesn't know where to put it */ | |
880 | default_common_section = output; | |
2fa0b342 | 881 | } |
2fa0b342 DHW |
882 | } |
883 | ||
884 | /* | |
075d7359 | 885 | read in all the files |
2fa0b342 | 886 | */ |
97fbbaca | 887 | |
075d7359 | 888 | static bfd * |
8ddef552 | 889 | open_output (name) |
9f629407 | 890 | CONST char *name; |
2fa0b342 | 891 | { |
097879bc | 892 | bfd *output; |
097879bc | 893 | |
075d7359 | 894 | if (output_target == (char *) NULL) |
ae475b39 SC |
895 | { |
896 | if (current_target != (char *) NULL) | |
897 | output_target = current_target; | |
898 | else | |
899 | output_target = default_target; | |
900 | } | |
075d7359 | 901 | output = bfd_openw (name, output_target); |
075d7359 SC |
902 | |
903 | if (output == (bfd *) NULL) | |
904 | { | |
5bcb7f28 | 905 | if (bfd_get_error () == bfd_error_invalid_target) |
ae475b39 | 906 | { |
ddddcdf0 | 907 | einfo ("%P%F: target %s not found\n", output_target); |
ae475b39 | 908 | } |
ddddcdf0 | 909 | einfo ("%P%F: cannot open output file %s: %E\n", name); |
075d7359 | 910 | } |
30d1a390 | 911 | |
97fbbaca JL |
912 | delete_output_file_on_failure = 1; |
913 | ||
30d1a390 | 914 | /* output->flags |= D_PAGED;*/ |
075d7359 | 915 | |
ddddcdf0 ILT |
916 | if (! bfd_set_format (output, bfd_object)) |
917 | einfo ("%P%F:%s: can not make object file: %E\n", name); | |
918 | if (! bfd_set_arch_mach (output, | |
919 | ldfile_output_architecture, | |
920 | ldfile_output_machine)) | |
921 | einfo ("%P%F:%s: can not set architecture: %E\n", name); | |
922 | ||
c477527c ILT |
923 | link_info.hash = bfd_link_hash_table_create (output); |
924 | if (link_info.hash == (struct bfd_link_hash_table *) NULL) | |
925 | einfo ("%P%F: can not create link hash table: %E\n"); | |
926 | ||
1b8a42f3 | 927 | bfd_set_gp_size (output, g_switch_value); |
2fa0b342 DHW |
928 | return output; |
929 | } | |
1418c83b SC |
930 | |
931 | ||
097879bc | 932 | |
1418c83b | 933 | |
2fa0b342 | 934 | static void |
8ddef552 DM |
935 | ldlang_open_output (statement) |
936 | lang_statement_union_type * statement; | |
2fa0b342 | 937 | { |
075d7359 SC |
938 | switch (statement->header.type) |
939 | { | |
c477527c ILT |
940 | case lang_output_statement_enum: |
941 | ASSERT (output_bfd == (bfd *) NULL); | |
075d7359 SC |
942 | output_bfd = open_output (statement->output_statement.name); |
943 | ldemul_set_output_arch (); | |
c477527c | 944 | if (config.magic_demand_paged && !link_info.relocateable) |
075d7359 SC |
945 | output_bfd->flags |= D_PAGED; |
946 | else | |
947 | output_bfd->flags &= ~D_PAGED; | |
948 | if (config.text_read_only) | |
949 | output_bfd->flags |= WP_TEXT; | |
950 | else | |
951 | output_bfd->flags &= ~WP_TEXT; | |
c96386c4 ILT |
952 | if (config.traditional_format) |
953 | output_bfd->flags |= BFD_TRADITIONAL_FORMAT; | |
954 | else | |
955 | output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT; | |
075d7359 | 956 | break; |
1418c83b | 957 | |
075d7359 SC |
958 | case lang_target_statement_enum: |
959 | current_target = statement->target_statement.target; | |
960 | break; | |
961 | default: | |
962 | break; | |
963 | } | |
1418c83b | 964 | } |
2fa0b342 | 965 | |
309c8153 ILT |
966 | /* Open all the input files. */ |
967 | ||
1418c83b | 968 | static void |
309c8153 ILT |
969 | open_input_bfds (s, force) |
970 | lang_statement_union_type *s; | |
971 | boolean force; | |
1418c83b | 972 | { |
309c8153 | 973 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
075d7359 | 974 | { |
309c8153 | 975 | switch (s->header.type) |
075d7359 | 976 | { |
309c8153 ILT |
977 | case lang_constructors_statement_enum: |
978 | open_input_bfds (constructor_list.head, force); | |
979 | break; | |
980 | case lang_output_section_statement_enum: | |
981 | open_input_bfds (s->output_section_statement.children.head, force); | |
982 | break; | |
983 | case lang_wild_statement_enum: | |
984 | /* Maybe we should load the file's symbols */ | |
985 | if (s->wild_statement.filename) | |
986 | (void) lookup_name (s->wild_statement.filename); | |
987 | open_input_bfds (s->wild_statement.children.head, force); | |
988 | break; | |
989 | case lang_group_statement_enum: | |
990 | { | |
991 | struct bfd_link_hash_entry *undefs; | |
992 | ||
993 | /* We must continually search the entries in the group | |
994 | until no new symbols are added to the list of undefined | |
995 | symbols. */ | |
996 | ||
997 | do | |
998 | { | |
999 | undefs = link_info.hash->undefs_tail; | |
1000 | open_input_bfds (s->group_statement.children.head, true); | |
1001 | } | |
1002 | while (undefs != link_info.hash->undefs_tail); | |
1003 | } | |
1004 | break; | |
1005 | case lang_target_statement_enum: | |
1006 | current_target = s->target_statement.target; | |
1007 | break; | |
1008 | case lang_input_statement_enum: | |
1009 | if (s->input_statement.real == true) | |
1010 | { | |
6a02a973 ILT |
1011 | lang_statement_list_type add; |
1012 | ||
309c8153 ILT |
1013 | s->input_statement.target = current_target; |
1014 | ||
1015 | /* If we are being called from within a group, and this | |
1016 | is an archive which has already been searched, then | |
1017 | force it to be researched. */ | |
1018 | if (force | |
1019 | && s->input_statement.loaded | |
1020 | && bfd_check_format (s->input_statement.the_bfd, | |
1021 | bfd_archive)) | |
1022 | s->input_statement.loaded = false; | |
1023 | ||
6a02a973 ILT |
1024 | lang_list_init (&add); |
1025 | ||
1026 | load_symbols (&s->input_statement, &add); | |
1027 | ||
1028 | if (add.head != NULL) | |
1029 | { | |
1030 | *add.tail = s->next; | |
1031 | s->next = add.head; | |
1032 | } | |
309c8153 ILT |
1033 | } |
1034 | break; | |
1035 | default: | |
1036 | break; | |
075d7359 | 1037 | } |
075d7359 | 1038 | } |
2fa0b342 | 1039 | } |
075d7359 | 1040 | |
2fa0b342 DHW |
1041 | /* If there are [COMMONS] statements, put a wild one into the bss section */ |
1042 | ||
1043 | static void | |
075d7359 | 1044 | lang_reasonable_defaults () |
2fa0b342 | 1045 | { |
1418c83b | 1046 | #if 0 |
075d7359 SC |
1047 | lang_output_section_statement_lookup (".text"); |
1048 | lang_output_section_statement_lookup (".data"); | |
8cb5eb31 | 1049 | |
075d7359 SC |
1050 | default_common_section = |
1051 | lang_output_section_statement_lookup (".bss"); | |
8cb5eb31 | 1052 | |
1418c83b | 1053 | |
075d7359 SC |
1054 | if (placed_commons == false) |
1055 | { | |
1056 | lang_wild_statement_type *new = | |
1057 | new_stat (lang_wild_statement, | |
1058 | &default_common_section->children); | |
1059 | ||
1060 | new->section_name = "COMMON"; | |
1061 | new->filename = (char *) NULL; | |
1062 | lang_list_init (&new->children); | |
1063 | } | |
1418c83b | 1064 | #endif |
8cb5eb31 | 1065 | |
2fa0b342 DHW |
1066 | } |
1067 | ||
1418c83b SC |
1068 | /* |
1069 | Add the supplied name to the symbol table as an undefined reference. | |
1070 | Remove items from the chain as we open input bfds | |
1071 | */ | |
075d7359 SC |
1072 | typedef struct ldlang_undef_chain_list |
1073 | { | |
f177a611 | 1074 | struct ldlang_undef_chain_list *next; |
1418c83b | 1075 | char *name; |
075d7359 | 1076 | } ldlang_undef_chain_list_type; |
1418c83b SC |
1077 | |
1078 | static ldlang_undef_chain_list_type *ldlang_undef_chain_list_head; | |
1079 | ||
1080 | void | |
8ddef552 DM |
1081 | ldlang_add_undef (name) |
1082 | CONST char *CONST name; | |
2fa0b342 | 1083 | { |
1418c83b | 1084 | ldlang_undef_chain_list_type *new = |
1d169acc ILT |
1085 | ((ldlang_undef_chain_list_type *) |
1086 | stat_alloc (sizeof (ldlang_undef_chain_list_type))); | |
1418c83b SC |
1087 | |
1088 | new->next = ldlang_undef_chain_list_head; | |
1089 | ldlang_undef_chain_list_head = new; | |
1090 | ||
075d7359 | 1091 | new->name = buystring (name); |
1418c83b | 1092 | } |
075d7359 | 1093 | |
1418c83b SC |
1094 | /* Run through the list of undefineds created above and place them |
1095 | into the linker hash table as undefined symbols belonging to the | |
1096 | script file. | |
1097 | */ | |
1098 | static void | |
8ddef552 | 1099 | lang_place_undefineds () |
1418c83b | 1100 | { |
c477527c | 1101 | ldlang_undef_chain_list_type *ptr; |
1418c83b | 1102 | |
c477527c ILT |
1103 | for (ptr = ldlang_undef_chain_list_head; |
1104 | ptr != (ldlang_undef_chain_list_type *) NULL; | |
1105 | ptr = ptr->next) | |
075d7359 | 1106 | { |
c477527c | 1107 | struct bfd_link_hash_entry *h; |
075d7359 | 1108 | |
c477527c ILT |
1109 | h = bfd_link_hash_lookup (link_info.hash, ptr->name, true, false, true); |
1110 | if (h == (struct bfd_link_hash_entry *) NULL) | |
1111 | einfo ("%P%F: bfd_link_hash_lookup failed: %E"); | |
1112 | if (h->type == bfd_link_hash_new) | |
1113 | { | |
1114 | h->type = bfd_link_hash_undefined; | |
1115 | h->u.undef.abfd = NULL; | |
1116 | bfd_link_add_undef (link_info.hash, h); | |
1117 | } | |
075d7359 SC |
1118 | } |
1119 | } | |
1418c83b | 1120 | |
2fa0b342 DHW |
1121 | /* Open input files and attatch to output sections */ |
1122 | static void | |
8ddef552 DM |
1123 | map_input_to_output_sections (s, target, output_section_statement) |
1124 | lang_statement_union_type * s; | |
1125 | CONST char *target; | |
1126 | lang_output_section_statement_type * output_section_statement; | |
2fa0b342 | 1127 | { |
075d7359 | 1128 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
2fa0b342 | 1129 | { |
075d7359 | 1130 | switch (s->header.type) |
2fa0b342 | 1131 | { |
075d7359 SC |
1132 | |
1133 | ||
1134 | case lang_wild_statement_enum: | |
1135 | wild (&s->wild_statement, s->wild_statement.section_name, | |
1136 | s->wild_statement.filename, target, | |
1137 | output_section_statement); | |
1138 | ||
1139 | break; | |
1140 | case lang_constructors_statement_enum: | |
1141 | map_input_to_output_sections (constructor_list.head, | |
1142 | target, | |
1143 | output_section_statement); | |
1144 | break; | |
1145 | case lang_output_section_statement_enum: | |
1146 | map_input_to_output_sections (s->output_section_statement.children.head, | |
1147 | target, | |
1148 | &s->output_section_statement); | |
1149 | break; | |
1150 | case lang_output_statement_enum: | |
1151 | break; | |
1152 | case lang_target_statement_enum: | |
1153 | target = s->target_statement.target; | |
1154 | break; | |
309c8153 ILT |
1155 | case lang_group_statement_enum: |
1156 | map_input_to_output_sections (s->group_statement.children.head, | |
1157 | target, | |
1158 | output_section_statement); | |
1159 | break; | |
075d7359 SC |
1160 | case lang_fill_statement_enum: |
1161 | case lang_input_section_enum: | |
1162 | case lang_object_symbols_statement_enum: | |
1163 | case lang_data_statement_enum: | |
4fdbafb2 | 1164 | case lang_reloc_statement_enum: |
075d7359 SC |
1165 | case lang_assignment_statement_enum: |
1166 | case lang_padding_statement_enum: | |
f9d3d71a ILT |
1167 | case lang_input_statement_enum: |
1168 | if (output_section_statement != NULL | |
1169 | && output_section_statement->bfd_section == NULL) | |
1170 | init_os (output_section_statement); | |
075d7359 SC |
1171 | break; |
1172 | case lang_afile_asection_pair_statement_enum: | |
1173 | FAIL (); | |
1174 | break; | |
1175 | case lang_address_statement_enum: | |
1176 | /* Mark the specified section with the supplied address */ | |
1177 | { | |
1178 | lang_output_section_statement_type *os = | |
ef01a8a8 ILT |
1179 | lang_output_section_statement_lookup |
1180 | (s->address_statement.section_name); | |
075d7359 | 1181 | |
ef01a8a8 ILT |
1182 | if (os->bfd_section == NULL) |
1183 | init_os (os); | |
075d7359 | 1184 | os->addr_tree = s->address_statement.address; |
48491e2e | 1185 | } |
075d7359 | 1186 | break; |
2fa0b342 | 1187 | } |
2fa0b342 DHW |
1188 | } |
1189 | } | |
1190 | ||
075d7359 | 1191 | static void |
8ddef552 DM |
1192 | print_output_section_statement (output_section_statement) |
1193 | lang_output_section_statement_type * output_section_statement; | |
2fa0b342 DHW |
1194 | { |
1195 | asection *section = output_section_statement->bfd_section; | |
075d7359 SC |
1196 | |
1197 | print_nl (); | |
1198 | print_section (output_section_statement->name); | |
1199 | ||
e20873a7 | 1200 | |
075d7359 | 1201 | if (section) |
e20873a7 JG |
1202 | { |
1203 | print_dot = section->vma; | |
1204 | print_space (); | |
1205 | print_section (""); | |
1206 | print_space (); | |
1207 | print_address (section->vma); | |
1208 | print_space (); | |
1209 | print_size (section->_raw_size); | |
3deb20fb | 1210 | print_space (); |
e20873a7 JG |
1211 | print_size(section->_cooked_size); |
1212 | print_space (); | |
1213 | print_alignment (section->alignment_power); | |
1214 | print_space (); | |
2fa0b342 | 1215 | #if 0 |
e20873a7 JG |
1216 | fprintf (config.map_file, "%s flags", output_section_statement->region->name); |
1217 | print_flags (stdout, &output_section_statement->flags); | |
2fa0b342 | 1218 | #endif |
e20873a7 JG |
1219 | if (section->flags & SEC_LOAD) |
1220 | fprintf (config.map_file, "load "); | |
1221 | if (section->flags & SEC_ALLOC) | |
1222 | fprintf (config.map_file, "alloc "); | |
1223 | if (section->flags & SEC_RELOC) | |
1224 | fprintf (config.map_file, "reloc "); | |
1225 | if (section->flags & SEC_HAS_CONTENTS) | |
1226 | fprintf (config.map_file, "contents "); | |
2fa0b342 | 1227 | |
e20873a7 | 1228 | } |
075d7359 | 1229 | else |
e20873a7 | 1230 | { |
269773c1 | 1231 | fprintf (config.map_file, " (no attached output section)"); |
e20873a7 JG |
1232 | } |
1233 | print_nl (); | |
9fce28ed SC |
1234 | if (output_section_statement->load_base) |
1235 | { | |
0b3499f6 | 1236 | int b = exp_get_abs_int(output_section_statement->load_base, |
9fce28ed | 1237 | 0, "output base", lang_final_phase_enum); |
3deb20fb | 1238 | fprintf (config.map_file, "Output address %08x\n", b); |
9fce28ed | 1239 | } |
e20873a7 | 1240 | if (output_section_statement->section_alignment >= 0 |
fa9dea80 | 1241 | || output_section_statement->subsection_alignment >= 0) |
e20873a7 | 1242 | { |
3deb20fb SC |
1243 | fprintf (config.map_file, "\t\t\t\t\tforced alignment "); |
1244 | if (output_section_statement->section_alignment >= 0) | |
075d7359 | 1245 | { |
3deb20fb | 1246 | fprintf (config.map_file, "section 2**%d ",output_section_statement->section_alignment ); |
075d7359 | 1247 | } |
e20873a7 JG |
1248 | if ( output_section_statement->subsection_alignment >= 0) |
1249 | { | |
3deb20fb | 1250 | fprintf (config.map_file, "subsection 2**%d ",output_section_statement->subsection_alignment ); |
e20873a7 JG |
1251 | } |
1252 | ||
1253 | print_nl (); | |
1254 | } | |
075d7359 SC |
1255 | print_statement (output_section_statement->children.head, |
1256 | output_section_statement); | |
2fa0b342 DHW |
1257 | |
1258 | } | |
1259 | ||
075d7359 | 1260 | static void |
8ddef552 DM |
1261 | print_assignment (assignment, output_section) |
1262 | lang_assignment_statement_type * assignment; | |
1263 | lang_output_section_statement_type * output_section; | |
2fa0b342 DHW |
1264 | { |
1265 | etree_value_type result; | |
075d7359 SC |
1266 | |
1267 | print_section (""); | |
1268 | print_space (); | |
1269 | print_section (""); | |
1270 | print_space (); | |
1271 | print_address (print_dot); | |
1272 | print_space (); | |
1273 | result = exp_fold_tree (assignment->exp->assign.src, | |
1274 | output_section, | |
1275 | lang_final_phase_enum, | |
1276 | print_dot, | |
1277 | &print_dot); | |
1278 | ||
1279 | if (result.valid) | |
1280 | { | |
1281 | print_address (result.value); | |
1282 | } | |
1283 | else | |
1284 | { | |
1285 | fprintf (config.map_file, "*undefined*"); | |
1286 | } | |
1287 | print_space (); | |
1288 | exp_print_tree (assignment->exp); | |
1289 | ||
1290 | fprintf (config.map_file, "\n"); | |
2fa0b342 DHW |
1291 | } |
1292 | ||
1293 | static void | |
8ddef552 DM |
1294 | print_input_statement (statm) |
1295 | lang_input_statement_type * statm; | |
2fa0b342 | 1296 | { |
075d7359 SC |
1297 | if (statm->filename != (char *) NULL) |
1298 | { | |
1299 | fprintf (config.map_file, "LOAD %s\n", statm->filename); | |
1300 | } | |
2fa0b342 DHW |
1301 | } |
1302 | ||
804c8601 SC |
1303 | /* Print all the defined symbols for the abfd provided by in the supplied |
1304 | section. | |
1305 | */ | |
1306 | ||
1307 | static boolean | |
1308 | print_one_symbol (hash_entry, ptr) | |
1309 | struct bfd_link_hash_entry *hash_entry; | |
1310 | PTR ptr; | |
2fa0b342 | 1311 | { |
804c8601 SC |
1312 | asection * sec = (asection *)ptr; |
1313 | ||
8ed88239 ILT |
1314 | if (hash_entry->type == bfd_link_hash_defined |
1315 | || hash_entry->type == bfd_link_hash_defweak) | |
804c8601 SC |
1316 | { |
1317 | if (sec == hash_entry->u.def.section) { | |
1318 | print_section (""); | |
1319 | fprintf (config.map_file, " "); | |
1320 | print_section (""); | |
1321 | fprintf (config.map_file, " "); | |
1322 | print_address (hash_entry->u.def.value + outside_section_address (sec)); | |
1323 | fprintf (config.map_file, " %s", hash_entry->root.string); | |
1324 | print_nl (); | |
1325 | } | |
1326 | } | |
09a5aa5e KR |
1327 | |
1328 | return true; | |
2fa0b342 | 1329 | } |
1418c83b | 1330 | |
075d7359 | 1331 | static void |
8ddef552 DM |
1332 | print_input_section (in) |
1333 | lang_input_section_type * in; | |
2fa0b342 DHW |
1334 | { |
1335 | asection *i = in->section; | |
f078dc7c | 1336 | bfd_size_type size = i->_cooked_size != 0 ? i->_cooked_size : i->_raw_size; |
1418c83b | 1337 | |
075d7359 SC |
1338 | if (size != 0) |
1339 | { | |
1340 | print_section (""); | |
1341 | fprintf (config.map_file, " "); | |
1342 | print_section (i->name); | |
1343 | fprintf (config.map_file, " "); | |
1344 | if (i->output_section) | |
1345 | { | |
1346 | print_address (i->output_section->vma + i->output_offset); | |
1347 | fprintf (config.map_file, " "); | |
ae475b39 SC |
1348 | print_size (i->_raw_size); |
1349 | fprintf (config.map_file, " "); | |
1350 | print_size(i->_cooked_size); | |
075d7359 SC |
1351 | fprintf (config.map_file, " "); |
1352 | print_alignment (i->alignment_power); | |
1353 | fprintf (config.map_file, " "); | |
1354 | if (in->ifile) | |
1355 | { | |
2fa0b342 | 1356 | |
075d7359 | 1357 | bfd *abfd = in->ifile->the_bfd; |
2fa0b342 | 1358 | |
075d7359 SC |
1359 | if (in->ifile->just_syms_flag == true) |
1360 | { | |
1361 | fprintf (config.map_file, "symbols only "); | |
1362 | } | |
2fa0b342 | 1363 | |
075d7359 SC |
1364 | fprintf (config.map_file, " %s ", abfd->xvec->name); |
1365 | if (abfd->my_archive != (bfd *) NULL) | |
1366 | { | |
1367 | fprintf (config.map_file, "[%s]%s", abfd->my_archive->filename, | |
1368 | abfd->filename); | |
1369 | } | |
1370 | else | |
1371 | { | |
1372 | fprintf (config.map_file, "%s", abfd->filename); | |
1373 | } | |
1374 | fprintf (config.map_file, "(overhead %d bytes)", (int) bfd_alloc_size (abfd)); | |
1375 | print_nl (); | |
2fa0b342 | 1376 | |
804c8601 SC |
1377 | /* Print all the symbols */ |
1378 | bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i); | |
075d7359 SC |
1379 | } |
1380 | else | |
1381 | { | |
1382 | print_nl (); | |
1383 | } | |
1384 | ||
1385 | ||
1386 | print_dot = outside_section_address (i) + size; | |
1387 | } | |
1388 | else | |
1389 | { | |
1390 | fprintf (config.map_file, "No output section allocated\n"); | |
1391 | } | |
1392 | } | |
1393 | } | |
2fa0b342 DHW |
1394 | |
1395 | static void | |
8ddef552 DM |
1396 | print_fill_statement (fill) |
1397 | lang_fill_statement_type * fill; | |
075d7359 SC |
1398 | { |
1399 | fprintf (config.map_file, "FILL mask "); | |
1400 | print_fill (fill->fill); | |
1401 | } | |
1402 | ||
1403 | static void | |
8ddef552 DM |
1404 | print_data_statement (data) |
1405 | lang_data_statement_type * data; | |
2fa0b342 DHW |
1406 | { |
1407 | /* bfd_vma value; */ | |
075d7359 SC |
1408 | print_section (""); |
1409 | print_space (); | |
1410 | print_section (""); | |
1411 | print_space (); | |
65c552e3 | 1412 | /* ASSERT(print_dot == data->output_vma);*/ |
2fa0b342 | 1413 | |
075d7359 SC |
1414 | print_address (data->output_vma + data->output_section->vma); |
1415 | print_space (); | |
1416 | print_address (data->value); | |
1417 | print_space (); | |
1418 | switch (data->type) | |
1419 | { | |
1420 | case BYTE: | |
1421 | fprintf (config.map_file, "BYTE "); | |
1422 | print_dot += BYTE_SIZE; | |
1423 | break; | |
1424 | case SHORT: | |
1425 | fprintf (config.map_file, "SHORT "); | |
1426 | print_dot += SHORT_SIZE; | |
1427 | break; | |
1428 | case LONG: | |
1429 | fprintf (config.map_file, "LONG "); | |
1430 | print_dot += LONG_SIZE; | |
1431 | break; | |
c477527c ILT |
1432 | case QUAD: |
1433 | fprintf (config.map_file, "QUAD "); | |
1434 | print_dot += QUAD_SIZE; | |
1435 | break; | |
075d7359 SC |
1436 | } |
1437 | ||
1438 | exp_print_tree (data->exp); | |
2fa0b342 | 1439 | |
075d7359 | 1440 | fprintf (config.map_file, "\n"); |
2fa0b342 DHW |
1441 | } |
1442 | ||
4fdbafb2 ILT |
1443 | /* Print a reloc statement. */ |
1444 | ||
1445 | static void | |
1446 | print_reloc_statement (reloc) | |
1447 | lang_reloc_statement_type *reloc; | |
1448 | { | |
1449 | print_section (""); | |
1450 | print_space (); | |
1451 | print_section (""); | |
1452 | print_space (); | |
1453 | ||
1454 | /* ASSERT(print_dot == data->output_vma);*/ | |
1455 | ||
1456 | print_address (reloc->output_vma + reloc->output_section->vma); | |
1457 | print_space (); | |
1458 | print_address (reloc->addend_value); | |
1459 | print_space (); | |
1460 | ||
1461 | fprintf (config.map_file, "RELOC %s ", reloc->howto->name); | |
1462 | ||
1463 | print_dot += bfd_get_reloc_size (reloc->howto); | |
1464 | ||
1465 | exp_print_tree (reloc->addend_exp); | |
1466 | ||
1467 | fprintf (config.map_file, "\n"); | |
1468 | } | |
2fa0b342 DHW |
1469 | |
1470 | static void | |
8ddef552 DM |
1471 | print_padding_statement (s) |
1472 | lang_padding_statement_type * s; | |
075d7359 SC |
1473 | { |
1474 | print_section (""); | |
1475 | print_space (); | |
1476 | print_section ("*fill*"); | |
1477 | print_space (); | |
1478 | print_address (s->output_offset + s->output_section->vma); | |
1479 | print_space (); | |
1480 | print_size (s->size); | |
1481 | print_space (); | |
1482 | print_fill (s->fill); | |
1483 | print_nl (); | |
ffc50032 | 1484 | |
aa34a7c3 | 1485 | print_dot = s->output_offset + s->output_section->vma + s->size; |
ffc50032 | 1486 | |
2fa0b342 DHW |
1487 | } |
1488 | ||
075d7359 | 1489 | static void |
8ddef552 DM |
1490 | print_wild_statement (w, os) |
1491 | lang_wild_statement_type * w; | |
1492 | lang_output_section_statement_type * os; | |
2fa0b342 | 1493 | { |
075d7359 SC |
1494 | fprintf (config.map_file, " from "); |
1495 | if (w->filename != (char *) NULL) | |
1496 | { | |
1497 | fprintf (config.map_file, "%s", w->filename); | |
1498 | } | |
1499 | else | |
1500 | { | |
1501 | fprintf (config.map_file, "*"); | |
1502 | } | |
1503 | if (w->section_name != (char *) NULL) | |
1504 | { | |
1505 | fprintf (config.map_file, "(%s)", w->section_name); | |
1506 | } | |
1507 | else | |
1508 | { | |
1509 | fprintf (config.map_file, "(*)"); | |
1510 | } | |
1511 | print_nl (); | |
1512 | print_statement (w->children.head, os); | |
2fa0b342 DHW |
1513 | |
1514 | } | |
309c8153 ILT |
1515 | |
1516 | /* Print a group statement. */ | |
1517 | ||
1518 | static void | |
1519 | print_group (s, os) | |
1520 | lang_group_statement_type *s; | |
1521 | lang_output_section_statement_type *os; | |
1522 | { | |
1523 | fprintf (config.map_file, "START GROUP\n"); | |
1524 | print_statement (s->children.head, os); | |
1525 | fprintf (config.map_file, "END GROUP\n"); | |
1526 | } | |
1527 | ||
2fa0b342 | 1528 | static void |
8ddef552 DM |
1529 | print_statement (s, os) |
1530 | lang_statement_union_type * s; | |
1531 | lang_output_section_statement_type * os; | |
2fa0b342 | 1532 | { |
075d7359 | 1533 | while (s) |
c611e285 | 1534 | { |
075d7359 | 1535 | switch (s->header.type) |
c611e285 | 1536 | { |
075d7359 SC |
1537 | case lang_constructors_statement_enum: |
1538 | fprintf (config.map_file, "constructors:\n"); | |
1539 | print_statement (constructor_list.head, os); | |
1540 | break; | |
1541 | case lang_wild_statement_enum: | |
1542 | print_wild_statement (&s->wild_statement, os); | |
1543 | break; | |
1544 | default: | |
1545 | fprintf (config.map_file, "Fail with %d\n", s->header.type); | |
1546 | FAIL (); | |
1547 | break; | |
1548 | case lang_address_statement_enum: | |
1549 | fprintf (config.map_file, "address\n"); | |
1550 | break; | |
1551 | case lang_object_symbols_statement_enum: | |
1552 | fprintf (config.map_file, "object symbols\n"); | |
1553 | break; | |
1554 | case lang_fill_statement_enum: | |
1555 | print_fill_statement (&s->fill_statement); | |
1556 | break; | |
1557 | case lang_data_statement_enum: | |
1558 | print_data_statement (&s->data_statement); | |
1559 | break; | |
4fdbafb2 ILT |
1560 | case lang_reloc_statement_enum: |
1561 | print_reloc_statement (&s->reloc_statement); | |
1562 | break; | |
075d7359 SC |
1563 | case lang_input_section_enum: |
1564 | print_input_section (&s->input_section); | |
1565 | break; | |
1566 | case lang_padding_statement_enum: | |
1567 | print_padding_statement (&s->padding_statement); | |
1568 | break; | |
1569 | case lang_output_section_statement_enum: | |
1570 | print_output_section_statement (&s->output_section_statement); | |
1571 | break; | |
1572 | case lang_assignment_statement_enum: | |
1573 | print_assignment (&s->assignment_statement, | |
1574 | os); | |
1575 | break; | |
1576 | case lang_target_statement_enum: | |
1577 | fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target); | |
1578 | break; | |
1579 | case lang_output_statement_enum: | |
1580 | fprintf (config.map_file, "OUTPUT(%s %s)\n", | |
c611e285 | 1581 | s->output_statement.name, |
e20873a7 | 1582 | output_target ? output_target : ""); |
075d7359 SC |
1583 | break; |
1584 | case lang_input_statement_enum: | |
1585 | print_input_statement (&s->input_statement); | |
1586 | break; | |
309c8153 ILT |
1587 | case lang_group_statement_enum: |
1588 | print_group (&s->group_statement, os); | |
1589 | break; | |
075d7359 SC |
1590 | case lang_afile_asection_pair_statement_enum: |
1591 | FAIL (); | |
1592 | break; | |
c611e285 | 1593 | } |
075d7359 | 1594 | s = s->next; |
2fa0b342 | 1595 | } |
2fa0b342 DHW |
1596 | } |
1597 | ||
1598 | ||
1599 | static void | |
8ddef552 | 1600 | print_statements () |
2fa0b342 | 1601 | { |
075d7359 SC |
1602 | print_statement (statement_list.head, |
1603 | abs_output_section); | |
1604 | ||
2fa0b342 DHW |
1605 | } |
1606 | ||
1607 | static bfd_vma | |
9f629407 ILT |
1608 | insert_pad (this_ptr, fill, power, output_section_statement, dot) |
1609 | lang_statement_union_type ** this_ptr; | |
1610 | fill_type fill; | |
1611 | unsigned int power; | |
1612 | asection * output_section_statement; | |
1613 | bfd_vma dot; | |
075d7359 SC |
1614 | { |
1615 | /* Align this section first to the | |
2fa0b342 DHW |
1616 | input sections requirement, then |
1617 | to the output section's requirement. | |
075d7359 | 1618 | If this alignment is > than any seen before, |
2fa0b342 DHW |
1619 | then record it too. Perform the alignment by |
1620 | inserting a magic 'padding' statement. | |
1621 | */ | |
1622 | ||
075d7359 | 1623 | unsigned int alignment_needed = align_power (dot, power) - dot; |
2fa0b342 | 1624 | |
075d7359 | 1625 | if (alignment_needed != 0) |
2fa0b342 | 1626 | { |
075d7359 | 1627 | lang_statement_union_type *new = |
1d169acc ILT |
1628 | ((lang_statement_union_type *) |
1629 | stat_alloc (sizeof (lang_padding_statement_type))); | |
075d7359 | 1630 | |
2fa0b342 DHW |
1631 | /* Link into existing chain */ |
1632 | new->header.next = *this_ptr; | |
1633 | *this_ptr = new; | |
1634 | new->header.type = lang_padding_statement_enum; | |
1635 | new->padding_statement.output_section = output_section_statement; | |
1636 | new->padding_statement.output_offset = | |
1637 | dot - output_section_statement->vma; | |
1638 | new->padding_statement.fill = fill; | |
1639 | new->padding_statement.size = alignment_needed; | |
1640 | } | |
1641 | ||
1642 | ||
1643 | /* Remember the most restrictive alignment */ | |
075d7359 SC |
1644 | if (power > output_section_statement->alignment_power) |
1645 | { | |
1646 | output_section_statement->alignment_power = power; | |
1647 | } | |
c611e285 | 1648 | output_section_statement->_raw_size += alignment_needed; |
2fa0b342 DHW |
1649 | return alignment_needed + dot; |
1650 | ||
1651 | } | |
1652 | ||
1418c83b | 1653 | /* Work out how much this section will move the dot point */ |
075d7359 | 1654 | static bfd_vma |
9f629407 ILT |
1655 | size_input_section (this_ptr, output_section_statement, fill, dot, relax) |
1656 | lang_statement_union_type ** this_ptr; | |
1657 | lang_output_section_statement_type * output_section_statement; | |
c477527c | 1658 | fill_type fill; |
9f629407 ILT |
1659 | bfd_vma dot; |
1660 | boolean relax; | |
2fa0b342 DHW |
1661 | { |
1662 | lang_input_section_type *is = &((*this_ptr)->input_section); | |
1663 | asection *i = is->section; | |
2fa0b342 | 1664 | |
075d7359 SC |
1665 | if (is->ifile->just_syms_flag == false) |
1666 | { | |
e20873a7 JG |
1667 | if (output_section_statement->subsection_alignment != -1) |
1668 | i->alignment_power = | |
1669 | output_section_statement->subsection_alignment; | |
1670 | ||
075d7359 SC |
1671 | dot = insert_pad (this_ptr, fill, i->alignment_power, |
1672 | output_section_statement->bfd_section, dot); | |
1673 | ||
075d7359 | 1674 | /* Remember where in the output section this input section goes */ |
ac004870 | 1675 | |
075d7359 SC |
1676 | i->output_offset = dot - output_section_statement->bfd_section->vma; |
1677 | ||
ae475b39 SC |
1678 | /* Mark how big the output section must be to contain this now |
1679 | */ | |
f078dc7c ILT |
1680 | if (i->_cooked_size != 0) |
1681 | dot += i->_cooked_size; | |
ae475b39 | 1682 | else |
f078dc7c | 1683 | dot += i->_raw_size; |
ae475b39 | 1684 | output_section_statement->bfd_section->_raw_size = dot - output_section_statement->bfd_section->vma; |
075d7359 | 1685 | } |
ac004870 | 1686 | else |
075d7359 SC |
1687 | { |
1688 | i->output_offset = i->vma - output_section_statement->bfd_section->vma; | |
1689 | } | |
2fa0b342 | 1690 | |
075d7359 | 1691 | return dot; |
2fa0b342 DHW |
1692 | } |
1693 | ||
193c5f93 ILT |
1694 | /* This variable indicates whether bfd_relax_section should be called |
1695 | again. */ | |
1696 | ||
1697 | static boolean relax_again; | |
1698 | ||
1699 | /* Set the sizes for all the output sections. */ | |
c611e285 | 1700 | |
a62494c4 | 1701 | bfd_vma |
9f629407 ILT |
1702 | lang_size_sections (s, output_section_statement, prev, fill, dot, relax) |
1703 | lang_statement_union_type * s; | |
1704 | lang_output_section_statement_type * output_section_statement; | |
1705 | lang_statement_union_type ** prev; | |
c477527c | 1706 | fill_type fill; |
9f629407 ILT |
1707 | bfd_vma dot; |
1708 | boolean relax; | |
c611e285 SC |
1709 | { |
1710 | /* Size up the sections from their constituent parts */ | |
075d7359 | 1711 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
ae475b39 SC |
1712 | { |
1713 | switch (s->header.type) | |
075d7359 | 1714 | { |
c611e285 | 1715 | |
ae475b39 SC |
1716 | case lang_output_section_statement_enum: |
1717 | { | |
1718 | bfd_vma after; | |
1719 | lang_output_section_statement_type *os = &s->output_section_statement; | |
1720 | ||
f9d3d71a ILT |
1721 | if (os->bfd_section == NULL) |
1722 | { | |
1723 | /* This section was never actually created. */ | |
1724 | break; | |
1725 | } | |
1726 | ||
27f7237e ILT |
1727 | /* If this is a COFF shared library section, use the size and |
1728 | address from the input section. FIXME: This is COFF | |
1729 | specific; it would be cleaner if there were some other way | |
1730 | to do this, but nothing simple comes to mind. */ | |
1731 | if ((os->bfd_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
1732 | { | |
1733 | asection *input; | |
1734 | ||
1735 | if (os->children.head == NULL | |
1736 | || os->children.head->next != NULL | |
1737 | || os->children.head->header.type != lang_input_section_enum) | |
1738 | einfo ("%P%X: Internal error on COFF shared library section %s", | |
1739 | os->name); | |
1740 | ||
1741 | input = os->children.head->input_section.section; | |
1742 | bfd_set_section_vma (os->bfd_section->owner, | |
1743 | os->bfd_section, | |
1744 | bfd_section_vma (input->owner, input)); | |
1745 | os->bfd_section->_raw_size = input->_raw_size; | |
1746 | break; | |
1747 | } | |
e9b63852 | 1748 | |
686739e2 | 1749 | if (bfd_is_abs_section (os->bfd_section)) |
ae475b39 SC |
1750 | { |
1751 | /* No matter what happens, an abs section starts at zero */ | |
686739e2 | 1752 | ASSERT (os->bfd_section->vma == 0); |
ae475b39 SC |
1753 | } |
1754 | else | |
1755 | { | |
1756 | if (os->addr_tree == (etree_type *) NULL) | |
1757 | { | |
1758 | /* No address specified for this section, get one | |
1759 | from the region specification | |
1760 | */ | |
1761 | if (os->region == (lang_memory_region_type *) NULL) | |
1762 | { | |
1763 | os->region = lang_memory_region_lookup ("*default*"); | |
1764 | } | |
1765 | dot = os->region->current; | |
feaa9c4b ILT |
1766 | if (os->section_alignment == -1) |
1767 | dot = align_power (dot, os->bfd_section->alignment_power); | |
ae475b39 SC |
1768 | } |
1769 | else | |
1770 | { | |
1771 | etree_value_type r; | |
1772 | ||
1773 | r = exp_fold_tree (os->addr_tree, | |
1774 | abs_output_section, | |
1775 | lang_allocating_phase_enum, | |
1776 | dot, &dot); | |
1777 | if (r.valid == false) | |
1778 | { | |
1779 | einfo ("%F%S: non constant address expression for section %s\n", | |
1780 | os->name); | |
1781 | } | |
1782 | dot = r.value; | |
1783 | } | |
1784 | /* The section starts here */ | |
1785 | /* First, align to what the section needs */ | |
1786 | ||
a62494c4 JL |
1787 | if (os->section_alignment != -1) |
1788 | dot = align_power (dot, os->section_alignment); | |
ae475b39 | 1789 | |
ae475b39 | 1790 | bfd_set_section_vma (0, os->bfd_section, dot); |
9fce28ed | 1791 | |
686739e2 ILT |
1792 | os->bfd_section->output_offset = 0; |
1793 | } | |
ae475b39 SC |
1794 | |
1795 | (void) lang_size_sections (os->children.head, os, &os->children.head, | |
1796 | os->fill, dot, relax); | |
1797 | /* Ignore the size of the input sections, use the vma and size to */ | |
1798 | /* align against */ | |
1799 | ||
8ddef552 | 1800 | after = ALIGN_N (os->bfd_section->vma + |
97fbbaca JL |
1801 | os->bfd_section->_raw_size, |
1802 | /* The coercion here is important, see ld.h. */ | |
1803 | (bfd_vma) os->block_value); | |
ae475b39 | 1804 | |
686739e2 ILT |
1805 | if (bfd_is_abs_section (os->bfd_section)) |
1806 | ASSERT (after == os->bfd_section->vma); | |
1807 | else | |
1808 | os->bfd_section->_raw_size = after - os->bfd_section->vma; | |
ae475b39 SC |
1809 | dot = os->bfd_section->vma + os->bfd_section->_raw_size; |
1810 | os->processed = true; | |
1811 | ||
1812 | /* Replace into region ? */ | |
686739e2 | 1813 | if (os->region != (lang_memory_region_type *) NULL) |
e802f0be DE |
1814 | { |
1815 | os->region->current = dot; | |
1816 | /* Make sure this isn't silly. */ | |
1817 | if ((os->region->current < os->region->origin) | |
1818 | || (os->region->current | |
1819 | > os->region->origin + os->region->length)) | |
1820 | { | |
1821 | if (os->addr_tree != (etree_type *) NULL) | |
1822 | { | |
1823 | einfo ("%X%P: address 0x%v of %B section %s is not within region %s\n", | |
1824 | os->region->current, | |
1825 | os->bfd_section->owner, | |
1826 | os->bfd_section->name, | |
1827 | os->region->name); | |
1828 | } | |
1829 | else | |
1830 | { | |
1831 | einfo ("%X%P: region %s is full (%B section %s)\n", | |
1832 | os->region->name, | |
1833 | os->bfd_section->owner, | |
1834 | os->bfd_section->name); | |
1835 | } | |
1836 | /* Reset the region pointer. */ | |
1837 | os->region->current = os->region->origin; | |
1838 | } | |
1839 | } | |
ae475b39 | 1840 | } |
e802f0be | 1841 | break; |
9d1fe8a4 | 1842 | |
ae475b39 SC |
1843 | case lang_constructors_statement_enum: |
1844 | dot = lang_size_sections (constructor_list.head, | |
1845 | output_section_statement, | |
1846 | &s->wild_statement.children.head, | |
1847 | fill, | |
1848 | dot, relax); | |
1849 | break; | |
9d1fe8a4 | 1850 | |
ae475b39 SC |
1851 | case lang_data_statement_enum: |
1852 | { | |
1853 | unsigned int size = 0; | |
1854 | ||
1855 | s->data_statement.output_vma = dot - output_section_statement->bfd_section->vma; | |
1856 | s->data_statement.output_section = | |
1857 | output_section_statement->bfd_section; | |
1858 | ||
1859 | switch (s->data_statement.type) | |
1860 | { | |
c477527c ILT |
1861 | case QUAD: |
1862 | size = QUAD_SIZE; | |
1863 | break; | |
ae475b39 SC |
1864 | case LONG: |
1865 | size = LONG_SIZE; | |
1866 | break; | |
1867 | case SHORT: | |
1868 | size = SHORT_SIZE; | |
1869 | break; | |
1870 | case BYTE: | |
1871 | size = BYTE_SIZE; | |
1872 | break; | |
1873 | ||
1874 | } | |
1875 | dot += size; | |
1876 | output_section_statement->bfd_section->_raw_size += size; | |
943fbd5b | 1877 | output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS; |
ae475b39 SC |
1878 | } |
1879 | break; | |
c611e285 | 1880 | |
4fdbafb2 ILT |
1881 | case lang_reloc_statement_enum: |
1882 | { | |
1883 | int size; | |
1884 | ||
1885 | s->reloc_statement.output_vma = | |
1886 | dot - output_section_statement->bfd_section->vma; | |
1887 | s->reloc_statement.output_section = | |
1888 | output_section_statement->bfd_section; | |
1889 | size = bfd_get_reloc_size (s->reloc_statement.howto); | |
1890 | dot += size; | |
1891 | output_section_statement->bfd_section->_raw_size += size; | |
1892 | } | |
1893 | break; | |
1894 | ||
ae475b39 | 1895 | case lang_wild_statement_enum: |
c611e285 | 1896 | |
ae475b39 SC |
1897 | dot = lang_size_sections (s->wild_statement.children.head, |
1898 | output_section_statement, | |
1899 | &s->wild_statement.children.head, | |
c611e285 | 1900 | |
ae475b39 | 1901 | fill, dot, relax); |
c611e285 | 1902 | |
ae475b39 | 1903 | break; |
c611e285 | 1904 | |
ae475b39 | 1905 | case lang_object_symbols_statement_enum: |
c477527c ILT |
1906 | link_info.create_object_symbols_section = |
1907 | output_section_statement->bfd_section; | |
ae475b39 SC |
1908 | break; |
1909 | case lang_output_statement_enum: | |
1910 | case lang_target_statement_enum: | |
1911 | break; | |
1912 | case lang_input_section_enum: | |
ae475b39 | 1913 | { |
c477527c ILT |
1914 | asection *i; |
1915 | ||
193c5f93 ILT |
1916 | i = (*prev)->input_section.section; |
1917 | if (! relax) | |
1918 | i->_cooked_size = i->_raw_size; | |
1919 | else | |
755f42fe | 1920 | { |
193c5f93 | 1921 | boolean again; |
075d7359 | 1922 | |
193c5f93 ILT |
1923 | if (! bfd_relax_section (i->owner, i, &link_info, &again)) |
1924 | einfo ("%P%F: can't relax section: %E\n"); | |
1925 | if (again) | |
1926 | relax_again = true; | |
1927 | } | |
1928 | dot = size_input_section (prev, | |
1929 | output_section_statement, | |
1930 | output_section_statement->fill, | |
1931 | dot, relax); | |
ae475b39 | 1932 | } |
ae475b39 SC |
1933 | break; |
1934 | case lang_input_statement_enum: | |
1935 | break; | |
1936 | case lang_fill_statement_enum: | |
1937 | s->fill_statement.output_section = output_section_statement->bfd_section; | |
075d7359 | 1938 | |
ae475b39 SC |
1939 | fill = s->fill_statement.fill; |
1940 | break; | |
1941 | case lang_assignment_statement_enum: | |
1942 | { | |
1943 | bfd_vma newdot = dot; | |
1944 | ||
1945 | exp_fold_tree (s->assignment_statement.exp, | |
1946 | output_section_statement, | |
1947 | lang_allocating_phase_enum, | |
1948 | dot, | |
1949 | &newdot); | |
1950 | ||
1951 | if (newdot != dot && !relax) | |
27f7237e ILT |
1952 | { |
1953 | /* The assignment changed dot. Insert a pad. */ | |
1954 | if (output_section_statement == abs_output_section) | |
1955 | { | |
1956 | /* If we don't have an output section, then just adjust | |
1957 | the default memory address. */ | |
1958 | lang_memory_region_lookup ("*default*")->current = newdot; | |
1959 | } | |
1960 | else | |
1961 | { | |
1962 | lang_statement_union_type *new = | |
1963 | ((lang_statement_union_type *) | |
1964 | stat_alloc (sizeof (lang_padding_statement_type))); | |
1965 | ||
1966 | /* Link into existing chain */ | |
1967 | new->header.next = *prev; | |
1968 | *prev = new; | |
1969 | new->header.type = lang_padding_statement_enum; | |
1970 | new->padding_statement.output_section = | |
1971 | output_section_statement->bfd_section; | |
1972 | new->padding_statement.output_offset = | |
1973 | dot - output_section_statement->bfd_section->vma; | |
1974 | new->padding_statement.fill = fill; | |
1975 | new->padding_statement.size = newdot - dot; | |
1976 | output_section_statement->bfd_section->_raw_size += | |
1977 | new->padding_statement.size; | |
1978 | } | |
1979 | ||
1980 | dot = newdot; | |
1981 | } | |
ae475b39 | 1982 | } |
27f7237e | 1983 | break; |
9d87af56 ILT |
1984 | |
1985 | case lang_padding_statement_enum: | |
1986 | /* If we are relaxing, and this is not the first pass, some | |
1987 | padding statements may have been inserted during previous | |
1988 | passes. We may have to move the padding statement to a new | |
1989 | location if dot has a different value at this point in this | |
1990 | pass than it did at this point in the previous pass. */ | |
1991 | s->padding_statement.output_offset = | |
1992 | dot - output_section_statement->bfd_section->vma; | |
1993 | dot += s->padding_statement.size; | |
1994 | break; | |
1995 | ||
309c8153 ILT |
1996 | case lang_group_statement_enum: |
1997 | dot = lang_size_sections (s->group_statement.children.head, | |
1998 | output_section_statement, | |
1999 | &s->group_statement.children.head, | |
2000 | fill, dot, relax); | |
2001 | break; | |
2002 | ||
ae475b39 SC |
2003 | default: |
2004 | FAIL (); | |
2005 | break; | |
9d87af56 | 2006 | |
ae475b39 | 2007 | /* This can only get here when relaxing is turned on */ |
075d7359 | 2008 | |
ae475b39 SC |
2009 | case lang_address_statement_enum: |
2010 | break; | |
075d7359 | 2011 | } |
ae475b39 SC |
2012 | prev = &s->header.next; |
2013 | } | |
c611e285 SC |
2014 | return dot; |
2015 | } | |
9d1fe8a4 | 2016 | |
309c8153 | 2017 | bfd_vma |
9f629407 ILT |
2018 | lang_do_assignments (s, output_section_statement, fill, dot) |
2019 | lang_statement_union_type * s; | |
2020 | lang_output_section_statement_type * output_section_statement; | |
c477527c | 2021 | fill_type fill; |
9f629407 | 2022 | bfd_vma dot; |
2fa0b342 | 2023 | { |
075d7359 | 2024 | for (; s != (lang_statement_union_type *) NULL; s = s->next) |
2fa0b342 | 2025 | { |
075d7359 | 2026 | switch (s->header.type) |
2fa0b342 | 2027 | { |
075d7359 SC |
2028 | case lang_constructors_statement_enum: |
2029 | dot = lang_do_assignments (constructor_list.head, | |
2030 | output_section_statement, | |
2031 | fill, | |
2032 | dot); | |
2033 | break; | |
2034 | ||
2035 | case lang_output_section_statement_enum: | |
2036 | { | |
2037 | lang_output_section_statement_type *os = | |
269773c1 | 2038 | &(s->output_section_statement); |
2fa0b342 | 2039 | |
269773c1 ILT |
2040 | if (os->bfd_section != NULL) |
2041 | { | |
2042 | dot = os->bfd_section->vma; | |
2043 | (void) lang_do_assignments (os->children.head, os, | |
2044 | os->fill, dot); | |
2045 | dot = os->bfd_section->vma + os->bfd_section->_raw_size; | |
2046 | } | |
0b3499f6 ILT |
2047 | if (os->load_base) |
2048 | { | |
467a0380 SC |
2049 | /* If nothing has been placed into the output section then |
2050 | it won't have a bfd_section. */ | |
2051 | if (os->bfd_section) | |
2052 | { | |
2053 | os->bfd_section->lma | |
2054 | = exp_get_abs_int(os->load_base, 0,"load base", lang_final_phase_enum); | |
2055 | } | |
0b3499f6 | 2056 | } |
075d7359 SC |
2057 | } |
2058 | break; | |
2059 | case lang_wild_statement_enum: | |
2fa0b342 | 2060 | |
075d7359 SC |
2061 | dot = lang_do_assignments (s->wild_statement.children.head, |
2062 | output_section_statement, | |
2063 | fill, dot); | |
2fa0b342 | 2064 | |
075d7359 SC |
2065 | break; |
2066 | ||
2067 | case lang_object_symbols_statement_enum: | |
2068 | case lang_output_statement_enum: | |
2069 | case lang_target_statement_enum: | |
1418c83b | 2070 | #if 0 |
075d7359 | 2071 | case lang_common_statement_enum: |
1418c83b | 2072 | #endif |
2fa0b342 | 2073 | break; |
075d7359 SC |
2074 | case lang_data_statement_enum: |
2075 | { | |
2076 | etree_value_type value; | |
2077 | ||
2078 | value = exp_fold_tree (s->data_statement.exp, | |
2079 | abs_output_section, | |
2080 | lang_final_phase_enum, dot, &dot); | |
2081 | s->data_statement.value = value.value; | |
2082 | if (value.valid == false) | |
ddddcdf0 | 2083 | einfo ("%F%P: invalid data statement\n"); |
075d7359 SC |
2084 | } |
2085 | switch (s->data_statement.type) | |
2086 | { | |
c477527c ILT |
2087 | case QUAD: |
2088 | dot += QUAD_SIZE; | |
2089 | break; | |
075d7359 SC |
2090 | case LONG: |
2091 | dot += LONG_SIZE; | |
2092 | break; | |
2093 | case SHORT: | |
2094 | dot += SHORT_SIZE; | |
2095 | break; | |
2096 | case BYTE: | |
2097 | dot += BYTE_SIZE; | |
2098 | break; | |
2099 | } | |
2fa0b342 | 2100 | break; |
4fdbafb2 ILT |
2101 | |
2102 | case lang_reloc_statement_enum: | |
2103 | { | |
2104 | etree_value_type value; | |
2105 | ||
2106 | value = exp_fold_tree (s->reloc_statement.addend_exp, | |
2107 | abs_output_section, | |
2108 | lang_final_phase_enum, dot, &dot); | |
2109 | s->reloc_statement.addend_value = value.value; | |
2110 | if (value.valid == false) | |
2111 | einfo ("%F%P: invalid reloc statement\n"); | |
2112 | } | |
2113 | dot += bfd_get_reloc_size (s->reloc_statement.howto); | |
2114 | break; | |
2115 | ||
075d7359 SC |
2116 | case lang_input_section_enum: |
2117 | { | |
2118 | asection *in = s->input_section.section; | |
2119 | ||
f078dc7c ILT |
2120 | if (in->_cooked_size != 0) |
2121 | dot += in->_cooked_size; | |
2122 | else | |
2123 | dot += in->_raw_size; | |
075d7359 | 2124 | } |
2fa0b342 | 2125 | break; |
2fa0b342 | 2126 | |
075d7359 SC |
2127 | case lang_input_statement_enum: |
2128 | break; | |
2129 | case lang_fill_statement_enum: | |
2130 | fill = s->fill_statement.fill; | |
2131 | break; | |
2132 | case lang_assignment_statement_enum: | |
2133 | { | |
2134 | exp_fold_tree (s->assignment_statement.exp, | |
2135 | output_section_statement, | |
2136 | lang_final_phase_enum, | |
2137 | dot, | |
2138 | &dot); | |
2139 | } | |
2140 | ||
2141 | break; | |
2142 | case lang_padding_statement_enum: | |
2143 | dot += s->padding_statement.size; | |
2144 | break; | |
309c8153 ILT |
2145 | |
2146 | case lang_group_statement_enum: | |
2147 | dot = lang_do_assignments (s->group_statement.children.head, | |
2148 | output_section_statement, | |
2149 | fill, dot); | |
2150 | ||
2151 | break; | |
2152 | ||
075d7359 SC |
2153 | default: |
2154 | FAIL (); | |
2155 | break; | |
2156 | case lang_address_statement_enum: | |
2157 | break; | |
2158 | } | |
2fa0b342 DHW |
2159 | |
2160 | } | |
2161 | return dot; | |
2162 | } | |
2163 | ||
1d169acc ILT |
2164 | /* Fix any .startof. or .sizeof. symbols. When the assemblers see the |
2165 | operator .startof. (section_name), it produces an undefined symbol | |
2166 | .startof.section_name. Similarly, when it sees | |
2167 | .sizeof. (section_name), it produces an undefined symbol | |
2168 | .sizeof.section_name. For all the output sections, we look for | |
2169 | such symbols, and set them to the correct value. */ | |
2170 | ||
2171 | static void | |
2172 | lang_set_startof () | |
2173 | { | |
2174 | asection *s; | |
2175 | ||
2176 | for (s = output_bfd->sections; s != NULL; s = s->next) | |
2177 | { | |
2178 | const char *secname; | |
2179 | char *buf; | |
2180 | struct bfd_link_hash_entry *h; | |
2181 | ||
2182 | secname = bfd_get_section_name (output_bfd, s); | |
2183 | buf = xmalloc (10 + strlen (secname)); | |
2184 | ||
2185 | sprintf (buf, ".startof.%s", secname); | |
2186 | h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true); | |
2187 | if (h != NULL && h->type == bfd_link_hash_undefined) | |
2188 | { | |
2189 | h->type = bfd_link_hash_defined; | |
2190 | h->u.def.value = bfd_get_section_vma (output_bfd, s); | |
2191 | h->u.def.section = bfd_abs_section_ptr; | |
2192 | } | |
2193 | ||
2194 | sprintf (buf, ".sizeof.%s", secname); | |
2195 | h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true); | |
2196 | if (h != NULL && h->type == bfd_link_hash_undefined) | |
2197 | { | |
2198 | h->type = bfd_link_hash_defined; | |
2199 | if (s->_cooked_size != 0) | |
2200 | h->u.def.value = s->_cooked_size; | |
2201 | else | |
2202 | h->u.def.value = s->_raw_size; | |
2203 | h->u.def.section = bfd_abs_section_ptr; | |
2204 | } | |
2205 | ||
2206 | free (buf); | |
2207 | } | |
2208 | } | |
2209 | ||
2fa0b342 | 2210 | static void |
8ddef552 | 2211 | lang_finish () |
2fa0b342 | 2212 | { |
c477527c | 2213 | struct bfd_link_hash_entry *h; |
cc38364d KR |
2214 | boolean warn; |
2215 | ||
2216 | if (link_info.relocateable || link_info.shared) | |
2217 | warn = false; | |
2218 | else | |
2219 | warn = true; | |
075d7359 | 2220 | |
c477527c ILT |
2221 | if (entry_symbol == (char *) NULL) |
2222 | { | |
2223 | /* No entry has been specified. Look for start, but don't warn | |
2224 | if we don't find it. */ | |
2225 | entry_symbol = "start"; | |
2226 | warn = false; | |
2227 | } | |
2fa0b342 | 2228 | |
c477527c ILT |
2229 | h = bfd_link_hash_lookup (link_info.hash, entry_symbol, false, false, true); |
2230 | if (h != (struct bfd_link_hash_entry *) NULL | |
8ed88239 ILT |
2231 | && (h->type == bfd_link_hash_defined |
2232 | || h->type == bfd_link_hash_defweak)) | |
075d7359 | 2233 | { |
c477527c | 2234 | bfd_vma val; |
075d7359 | 2235 | |
c477527c ILT |
2236 | val = (h->u.def.value |
2237 | + bfd_get_section_vma (output_bfd, | |
2238 | h->u.def.section->output_section) | |
2239 | + h->u.def.section->output_offset); | |
2240 | if (! bfd_set_start_address (output_bfd, val)) | |
2241 | einfo ("%P%F:%s: can't set start address\n", entry_symbol); | |
075d7359 | 2242 | } |
c477527c | 2243 | else |
22a78f0d | 2244 | { |
c477527c ILT |
2245 | asection *ts; |
2246 | ||
2247 | /* Can't find the entry symbol. Use the first address in the | |
2248 | text section. */ | |
2249 | ts = bfd_get_section_by_name (output_bfd, ".text"); | |
2250 | if (ts != (asection *) NULL) | |
2251 | { | |
2252 | if (warn) | |
2253 | einfo ("%P: warning: cannot find entry symbol %s; defaulting to %V\n", | |
2254 | entry_symbol, bfd_get_section_vma (output_bfd, ts)); | |
2255 | if (! bfd_set_start_address (output_bfd, | |
2256 | bfd_get_section_vma (output_bfd, ts))) | |
2257 | einfo ("%P%F: can't set start address\n"); | |
2258 | } | |
2259 | else | |
2260 | { | |
2261 | if (warn) | |
2262 | einfo ("%P: warning: cannot find entry symbol %s; not setting start address\n", | |
2263 | entry_symbol); | |
2264 | } | |
22a78f0d | 2265 | } |
2fa0b342 DHW |
2266 | } |
2267 | ||
0b3499f6 | 2268 | /* Check that the architecture of all the input files is compatible |
f400bbbb ILT |
2269 | with the output file. Also call the backend to let it do any |
2270 | other checking that is needed. */ | |
0b3499f6 | 2271 | |
2fa0b342 | 2272 | static void |
8ddef552 | 2273 | lang_check () |
2fa0b342 DHW |
2274 | { |
2275 | lang_statement_union_type *file; | |
075d7359 | 2276 | bfd *input_bfd; |
075d7359 | 2277 | CONST bfd_arch_info_type *compatible; |
7bc4a0d7 | 2278 | |
2fa0b342 | 2279 | for (file = file_chain.head; |
075d7359 SC |
2280 | file != (lang_statement_union_type *) NULL; |
2281 | file = file->input_statement.next) | |
2282 | { | |
075d7359 | 2283 | input_bfd = file->input_statement.the_bfd; |
075d7359 SC |
2284 | compatible = bfd_arch_get_compatible (input_bfd, |
2285 | output_bfd); | |
0b3499f6 ILT |
2286 | if (compatible == NULL) |
2287 | einfo ("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n", | |
2288 | bfd_printable_name (input_bfd), input_bfd, | |
2289 | bfd_printable_name (output_bfd)); | |
f400bbbb ILT |
2290 | |
2291 | else | |
2292 | bfd_merge_private_bfd_data (input_bfd, output_bfd); | |
075d7359 SC |
2293 | } |
2294 | } | |
2fa0b342 | 2295 | |
c477527c ILT |
2296 | /* Look through all the global common symbols and attach them to the |
2297 | correct section. The -sort-common command line switch may be used | |
2298 | to roughly sort the entries by size. */ | |
2fa0b342 DHW |
2299 | |
2300 | static void | |
8ddef552 | 2301 | lang_common () |
2fa0b342 | 2302 | { |
c477527c ILT |
2303 | if (link_info.relocateable |
2304 | && ! command_line.force_common_definition) | |
2305 | return; | |
075d7359 | 2306 | |
c477527c ILT |
2307 | if (! config.sort_common) |
2308 | bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL); | |
2309 | else | |
075d7359 | 2310 | { |
fa9dea80 | 2311 | int power; |
1418c83b | 2312 | |
fa9dea80 | 2313 | for (power = 4; power >= 0; power--) |
c477527c ILT |
2314 | bfd_link_hash_traverse (link_info.hash, lang_one_common, |
2315 | (PTR) &power); | |
2316 | } | |
2317 | } | |
29f33467 | 2318 | |
c477527c | 2319 | /* Place one common symbol in the correct section. */ |
075d7359 | 2320 | |
c477527c ILT |
2321 | static boolean |
2322 | lang_one_common (h, info) | |
2323 | struct bfd_link_hash_entry *h; | |
2324 | PTR info; | |
2325 | { | |
2326 | unsigned int power_of_two; | |
2327 | bfd_vma size; | |
c477527c | 2328 | asection *section; |
075d7359 | 2329 | |
c477527c ILT |
2330 | if (h->type != bfd_link_hash_common) |
2331 | return true; | |
075d7359 | 2332 | |
c477527c | 2333 | size = h->u.c.size; |
f400bbbb | 2334 | power_of_two = h->u.c.p->alignment_power; |
36c6e8c3 ILT |
2335 | |
2336 | if (config.sort_common | |
fa9dea80 | 2337 | && power_of_two < *(int *) info) |
c477527c | 2338 | return true; |
075d7359 | 2339 | |
f400bbbb | 2340 | section = h->u.c.p->section; |
075d7359 | 2341 | |
c477527c | 2342 | /* Increase the size of the section. */ |
36c6e8c3 ILT |
2343 | section->_raw_size = ALIGN_N (section->_raw_size, |
2344 | (bfd_size_type) (1 << power_of_two)); | |
075d7359 | 2345 | |
c477527c ILT |
2346 | /* Adjust the alignment if necessary. */ |
2347 | if (power_of_two > section->alignment_power) | |
2348 | section->alignment_power = power_of_two; | |
075d7359 | 2349 | |
c477527c ILT |
2350 | /* Change the symbol from common to defined. */ |
2351 | h->type = bfd_link_hash_defined; | |
2352 | h->u.def.section = section; | |
2353 | h->u.def.value = section->_raw_size; | |
097879bc | 2354 | |
c477527c ILT |
2355 | /* Increase the size of the section. */ |
2356 | section->_raw_size += size; | |
1418c83b | 2357 | |
809391bd ILT |
2358 | /* Make sure the section is allocated in memory. */ |
2359 | section->flags |= SEC_ALLOC; | |
2360 | ||
b495c314 | 2361 | if (config.map_file != NULL) |
c477527c ILT |
2362 | fprintf (config.map_file, "Allocating common %s: %lx at %lx %s\n", |
2363 | h->root.string, (unsigned long) size, | |
2364 | (unsigned long) h->u.def.value, section->owner->filename); | |
1418c83b | 2365 | |
c477527c | 2366 | return true; |
2fa0b342 DHW |
2367 | } |
2368 | ||
2369 | /* | |
075d7359 | 2370 | run through the input files and ensure that every input |
2fa0b342 DHW |
2371 | section has somewhere to go. If one is found without |
2372 | a destination then create an input request and place it | |
2373 | into the statement tree. | |
2374 | */ | |
2375 | ||
075d7359 | 2376 | static void |
8ddef552 | 2377 | lang_place_orphans () |
2fa0b342 DHW |
2378 | { |
2379 | lang_input_statement_type *file; | |
1418c83b | 2380 | |
075d7359 SC |
2381 | for (file = (lang_input_statement_type *) file_chain.head; |
2382 | file != (lang_input_statement_type *) NULL; | |
2383 | file = (lang_input_statement_type *) file->next) | |
2384 | { | |
2385 | asection *s; | |
2386 | ||
2387 | for (s = file->the_bfd->sections; | |
2388 | s != (asection *) NULL; | |
2389 | s = s->next) | |
2390 | { | |
2391 | if (s->output_section == (asection *) NULL) | |
2392 | { | |
2393 | /* This section of the file is not attatched, root | |
2394 | around for a sensible place for it to go */ | |
2395 | ||
e802f0be DE |
2396 | if (file->just_syms_flag) |
2397 | { | |
2398 | /* We are only retrieving symbol values from this | |
2399 | file. We want the symbols to act as though the | |
2400 | values in the file are absolute. */ | |
2401 | s->output_section = bfd_abs_section_ptr; | |
2402 | s->output_offset = s->vma; | |
2403 | } | |
2404 | else if (file->common_section == s) | |
075d7359 SC |
2405 | { |
2406 | /* This is a lonely common section which must | |
2407 | have come from an archive. We attatch to the | |
2408 | section with the wildcard */ | |
c477527c ILT |
2409 | if (! link_info.relocateable |
2410 | && ! command_line.force_common_definition) | |
075d7359 SC |
2411 | { |
2412 | if (default_common_section == | |
2413 | (lang_output_section_statement_type *) NULL) | |
2414 | { | |
a4aeaacf | 2415 | info_msg ("%P: no [COMMON] command, defaulting to .bss\n"); |
075d7359 SC |
2416 | |
2417 | default_common_section = | |
2418 | lang_output_section_statement_lookup (".bss"); | |
2419 | ||
2420 | } | |
2421 | wild_doit (&default_common_section->children, s, | |
2422 | default_common_section, file); | |
2423 | } | |
2424 | } | |
0b3499f6 ILT |
2425 | else if (ldemul_place_orphan (file, s)) |
2426 | ; | |
075d7359 SC |
2427 | else |
2428 | { | |
2429 | lang_output_section_statement_type *os = | |
2430 | lang_output_section_statement_lookup (s->name); | |
2fa0b342 | 2431 | |
075d7359 SC |
2432 | wild_doit (&os->children, s, os, file); |
2433 | } | |
2434 | } | |
2fa0b342 | 2435 | } |
2fa0b342 | 2436 | } |
2fa0b342 DHW |
2437 | } |
2438 | ||
2439 | ||
2fa0b342 | 2440 | void |
8ddef552 DM |
2441 | lang_set_flags (ptr, flags) |
2442 | int *ptr; | |
2443 | CONST char *flags; | |
2fa0b342 | 2444 | { |
075d7359 SC |
2445 | boolean state = false; |
2446 | ||
2447 | *ptr = 0; | |
2fa0b342 | 2448 | while (*flags) |
075d7359 SC |
2449 | { |
2450 | if (*flags == '!') | |
2451 | { | |
2452 | state = false; | |
2453 | flags++; | |
2454 | } | |
2455 | else | |
2456 | state = true; | |
2457 | switch (*flags) | |
2458 | { | |
2459 | case 'R': | |
2460 | /* ptr->flag_read = state; */ | |
2461 | break; | |
2462 | case 'W': | |
2463 | /* ptr->flag_write = state; */ | |
2464 | break; | |
2465 | case 'X': | |
2466 | /* ptr->flag_executable= state;*/ | |
2467 | break; | |
2468 | case 'L': | |
2469 | case 'I': | |
2470 | /* ptr->flag_loadable= state;*/ | |
2471 | break; | |
2472 | default: | |
ddddcdf0 | 2473 | einfo ("%P%F: invalid syntax in flags\n"); |
075d7359 SC |
2474 | break; |
2475 | } | |
dc4726c2 SC |
2476 | flags++; |
2477 | } | |
2fa0b342 DHW |
2478 | } |
2479 | ||
a4d2a48e ILT |
2480 | /* Call a function on each input file. This function will be called |
2481 | on an archive, but not on the elements. */ | |
2482 | ||
2483 | void | |
2484 | lang_for_each_input_file (func) | |
2485 | void (*func) PARAMS ((lang_input_statement_type *)); | |
2486 | { | |
2487 | lang_input_statement_type *f; | |
2488 | ||
2489 | for (f = (lang_input_statement_type *) input_file_chain.head; | |
2490 | f != NULL; | |
2491 | f = (lang_input_statement_type *) f->next_real_file) | |
2492 | func (f); | |
2493 | } | |
2fa0b342 | 2494 | |
a4d2a48e ILT |
2495 | /* Call a function on each file. The function will be called on all |
2496 | the elements of an archive which are included in the link, but will | |
2497 | not be called on the archive file itself. */ | |
2fa0b342 DHW |
2498 | |
2499 | void | |
8ddef552 DM |
2500 | lang_for_each_file (func) |
2501 | void (*func) PARAMS ((lang_input_statement_type *)); | |
2fa0b342 DHW |
2502 | { |
2503 | lang_input_statement_type *f; | |
075d7359 SC |
2504 | |
2505 | for (f = (lang_input_statement_type *) file_chain.head; | |
2506 | f != (lang_input_statement_type *) NULL; | |
2507 | f = (lang_input_statement_type *) f->next) | |
2508 | { | |
2509 | func (f); | |
2510 | } | |
2fa0b342 DHW |
2511 | } |
2512 | ||
9f629407 ILT |
2513 | #if 0 |
2514 | ||
2515 | /* Not used. */ | |
2fa0b342 DHW |
2516 | |
2517 | void | |
8ddef552 DM |
2518 | lang_for_each_input_section (func) |
2519 | void (*func) PARAMS ((bfd * ab, asection * as)); | |
2fa0b342 DHW |
2520 | { |
2521 | lang_input_statement_type *f; | |
075d7359 SC |
2522 | |
2523 | for (f = (lang_input_statement_type *) file_chain.head; | |
2524 | f != (lang_input_statement_type *) NULL; | |
2525 | f = (lang_input_statement_type *) f->next) | |
2fa0b342 DHW |
2526 | { |
2527 | asection *s; | |
075d7359 | 2528 | |
2fa0b342 | 2529 | for (s = f->the_bfd->sections; |
075d7359 SC |
2530 | s != (asection *) NULL; |
2531 | s = s->next) | |
2532 | { | |
2533 | func (f->the_bfd, s); | |
2534 | } | |
2fa0b342 DHW |
2535 | } |
2536 | } | |
2537 | ||
9f629407 | 2538 | #endif |
2fa0b342 | 2539 | |
075d7359 | 2540 | void |
8ddef552 DM |
2541 | ldlang_add_file (entry) |
2542 | lang_input_statement_type * entry; | |
2fa0b342 | 2543 | { |
5e6cd559 ILT |
2544 | bfd **pp; |
2545 | ||
075d7359 SC |
2546 | lang_statement_append (&file_chain, |
2547 | (lang_statement_union_type *) entry, | |
2548 | &entry->next); | |
c477527c ILT |
2549 | |
2550 | /* The BFD linker needs to have a list of all input BFDs involved in | |
2551 | a link. */ | |
2552 | ASSERT (entry->the_bfd->link_next == (bfd *) NULL); | |
2553 | ASSERT (entry->the_bfd != output_bfd); | |
5e6cd559 ILT |
2554 | for (pp = &link_info.input_bfds; |
2555 | *pp != (bfd *) NULL; | |
2556 | pp = &(*pp)->link_next) | |
2557 | ; | |
2558 | *pp = entry->the_bfd; | |
c477527c | 2559 | entry->the_bfd->usrdata = (PTR) entry; |
fc1dfb71 | 2560 | bfd_set_gp_size (entry->the_bfd, g_switch_value); |
2fa0b342 DHW |
2561 | } |
2562 | ||
2fa0b342 | 2563 | void |
2c6635a4 | 2564 | lang_add_output (name, from_script) |
8ddef552 | 2565 | CONST char *name; |
2c6635a4 | 2566 | int from_script; |
2fa0b342 | 2567 | { |
2c6635a4 ILT |
2568 | /* Make -o on command line override OUTPUT in script. */ |
2569 | if (had_output_filename == false || !from_script) | |
2570 | { | |
2571 | output_filename = name; | |
2572 | had_output_filename = true; | |
2573 | } | |
2fa0b342 DHW |
2574 | } |
2575 | ||
2576 | ||
2577 | static lang_output_section_statement_type *current_section; | |
2578 | ||
e20873a7 | 2579 | static int topower(x) |
9f629407 | 2580 | int x; |
e20873a7 JG |
2581 | { |
2582 | unsigned int i = 1; | |
2583 | int l; | |
2584 | if (x < 0) return -1; | |
2585 | for (l = 0; l < 32; l++) | |
2586 | { | |
2587 | if (i >= x) return l; | |
2588 | i<<=1; | |
2589 | } | |
29f33467 | 2590 | return 0; |
e20873a7 | 2591 | } |
2fa0b342 | 2592 | void |
8ddef552 DM |
2593 | lang_enter_output_section_statement (output_section_statement_name, |
2594 | address_exp, flags, block_value, | |
9f629407 | 2595 | align, subalign, ebase) |
fcf276c4 | 2596 | const char *output_section_statement_name; |
8ddef552 DM |
2597 | etree_type * address_exp; |
2598 | int flags; | |
2599 | bfd_vma block_value; | |
2600 | etree_type *align; | |
2601 | etree_type *subalign; | |
9f629407 | 2602 | etree_type *ebase; |
2fa0b342 DHW |
2603 | { |
2604 | lang_output_section_statement_type *os; | |
075d7359 SC |
2605 | |
2606 | current_section = | |
e20873a7 | 2607 | os = |
075d7359 SC |
2608 | lang_output_section_statement_lookup (output_section_statement_name); |
2609 | ||
2610 | ||
2fa0b342 | 2611 | |
2fa0b342 DHW |
2612 | /* Add this statement to tree */ |
2613 | /* add_statement(lang_output_section_statement_enum, | |
2614 | output_section_statement);*/ | |
2615 | /* Make next things chain into subchain of this */ | |
2616 | ||
2617 | if (os->addr_tree == | |
075d7359 | 2618 | (etree_type *) NULL) |
e20873a7 JG |
2619 | { |
2620 | os->addr_tree = | |
2621 | address_exp; | |
2622 | } | |
7bc4a0d7 | 2623 | os->flags = flags; |
ae475b39 SC |
2624 | if (flags & SEC_NEVER_LOAD) |
2625 | os->loadable = 0; | |
2626 | else | |
2627 | os->loadable = 1; | |
29f33467 | 2628 | os->block_value = block_value ? block_value : 1; |
075d7359 | 2629 | stat_ptr = &os->children; |
2fa0b342 | 2630 | |
e20873a7 JG |
2631 | os->subsection_alignment = topower( |
2632 | exp_get_value_int(subalign, -1, | |
2633 | "subsection alignment", | |
2634 | 0)); | |
2635 | os->section_alignment = topower( | |
2636 | exp_get_value_int(align, -1, | |
2637 | "section alignment", 0)); | |
9fce28ed | 2638 | |
9f629407 | 2639 | os->load_base = ebase; |
2fa0b342 DHW |
2640 | } |
2641 | ||
9fce28ed | 2642 | |
075d7359 | 2643 | void |
8ddef552 | 2644 | lang_final () |
2fa0b342 | 2645 | { |
2c6635a4 ILT |
2646 | lang_output_statement_type *new = |
2647 | new_stat (lang_output_statement, stat_ptr); | |
2fa0b342 | 2648 | |
2c6635a4 | 2649 | new->name = output_filename; |
075d7359 | 2650 | } |
2fa0b342 | 2651 | |
c611e285 SC |
2652 | /* Reset the current counters in the regions */ |
2653 | static void | |
8ddef552 | 2654 | reset_memory_regions () |
c611e285 | 2655 | { |
075d7359 SC |
2656 | lang_memory_region_type *p = lang_memory_region_list; |
2657 | ||
c611e285 | 2658 | for (p = lang_memory_region_list; |
075d7359 SC |
2659 | p != (lang_memory_region_type *) NULL; |
2660 | p = p->next) | |
2661 | { | |
8ddef552 | 2662 | p->old_length = (bfd_size_type) (p->current - p->origin); |
075d7359 SC |
2663 | p->current = p->origin; |
2664 | } | |
c611e285 | 2665 | } |
2fa0b342 | 2666 | |
2fa0b342 | 2667 | void |
8ddef552 | 2668 | lang_process () |
075d7359 | 2669 | { |
075d7359 | 2670 | lang_reasonable_defaults (); |
1418c83b SC |
2671 | current_target = default_target; |
2672 | ||
075d7359 | 2673 | lang_for_each_statement (ldlang_open_output); /* Open the output file */ |
1418c83b | 2674 | |
97fbbaca JL |
2675 | ldemul_create_output_section_statements (); |
2676 | ||
1418c83b | 2677 | /* Add to the hash table all undefineds on the command line */ |
075d7359 | 2678 | lang_place_undefineds (); |
1418c83b SC |
2679 | |
2680 | /* Create a bfd for each input file */ | |
2681 | current_target = default_target; | |
309c8153 | 2682 | open_input_bfds (statement_list.head, false); |
1418c83b | 2683 | |
cc38364d KR |
2684 | ldemul_after_open (); |
2685 | ||
c477527c ILT |
2686 | /* Build all sets based on the information gathered from the input |
2687 | files. */ | |
2688 | ldctor_build_sets (); | |
2689 | ||
4fdbafb2 ILT |
2690 | /* Size up the common data */ |
2691 | lang_common (); | |
2692 | ||
1418c83b | 2693 | /* Run through the contours of the script and attatch input sections |
075d7359 | 2694 | to the correct output sections |
1418c83b | 2695 | */ |
075d7359 SC |
2696 | map_input_to_output_sections (statement_list.head, (char *) NULL, |
2697 | (lang_output_section_statement_type *) NULL); | |
1418c83b | 2698 | |
81016051 | 2699 | |
1418c83b | 2700 | /* Find any sections not attatched explicitly and handle them */ |
075d7359 | 2701 | lang_place_orphans (); |
1418c83b | 2702 | |
075d7359 | 2703 | ldemul_before_allocation (); |
1418c83b | 2704 | |
c611e285 | 2705 | /* Now run around and relax if we can */ |
075d7359 | 2706 | if (command_line.relax) |
c611e285 | 2707 | { |
97fbbaca JL |
2708 | /* First time round is a trial run to get the 'worst case' |
2709 | addresses of the objects if there was no relaxing. */ | |
ae475b39 | 2710 | lang_size_sections (statement_list.head, |
193c5f93 | 2711 | abs_output_section, |
ae475b39 | 2712 | &(statement_list.head), 0, (bfd_vma) 0, false); |
c611e285 | 2713 | |
193c5f93 ILT |
2714 | /* Keep relaxing until bfd_relax_section gives up. */ |
2715 | do | |
2716 | { | |
1d169acc ILT |
2717 | reset_memory_regions (); |
2718 | ||
193c5f93 | 2719 | relax_again = false; |
ae475b39 | 2720 | |
193c5f93 ILT |
2721 | /* Do all the assignments with our current guesses as to |
2722 | section sizes. */ | |
2723 | lang_do_assignments (statement_list.head, | |
2724 | abs_output_section, | |
2725 | (fill_type) 0, (bfd_vma) 0); | |
ae475b39 | 2726 | |
193c5f93 ILT |
2727 | /* Perform another relax pass - this time we know where the |
2728 | globals are, so can make better guess. */ | |
2729 | lang_size_sections (statement_list.head, | |
2730 | abs_output_section, | |
2731 | &(statement_list.head), 0, (bfd_vma) 0, true); | |
2732 | } | |
2733 | while (relax_again); | |
ae475b39 | 2734 | } |
ae475b39 SC |
2735 | else |
2736 | { | |
97fbbaca | 2737 | /* Size up the sections. */ |
ae475b39 SC |
2738 | lang_size_sections (statement_list.head, |
2739 | abs_output_section, | |
2740 | &(statement_list.head), 0, (bfd_vma) 0, false); | |
075d7359 | 2741 | } |
c611e285 | 2742 | |
1418c83b | 2743 | /* See if anything special should be done now we know how big |
97fbbaca | 2744 | everything is. */ |
075d7359 | 2745 | ldemul_after_allocation (); |
1418c83b | 2746 | |
1d169acc ILT |
2747 | /* Fix any .startof. or .sizeof. symbols. */ |
2748 | lang_set_startof (); | |
2749 | ||
1418c83b SC |
2750 | /* Do all the assignments, now that we know the final restingplaces |
2751 | of all the symbols */ | |
2752 | ||
075d7359 SC |
2753 | lang_do_assignments (statement_list.head, |
2754 | abs_output_section, | |
c477527c | 2755 | (fill_type) 0, (bfd_vma) 0); |
ffc50032 | 2756 | |
1418c83b SC |
2757 | /* Make sure that we're not mixing architectures */ |
2758 | ||
075d7359 | 2759 | lang_check (); |
1418c83b | 2760 | |
1418c83b | 2761 | /* Final stuffs */ |
97fbbaca JL |
2762 | |
2763 | ldemul_finish (); | |
075d7359 | 2764 | lang_finish (); |
2fa0b342 DHW |
2765 | } |
2766 | ||
2fa0b342 | 2767 | /* EXPORTED TO YACC */ |
1418c83b | 2768 | |
2fa0b342 | 2769 | void |
8ddef552 DM |
2770 | lang_add_wild (section_name, filename) |
2771 | CONST char *CONST section_name; | |
2772 | CONST char *CONST filename; | |
1418c83b | 2773 | { |
075d7359 SC |
2774 | lang_wild_statement_type *new = new_stat (lang_wild_statement, |
2775 | stat_ptr); | |
1418c83b | 2776 | |
075d7359 SC |
2777 | if (section_name != (char *) NULL && strcmp (section_name, "COMMON") == 0) |
2778 | { | |
2779 | placed_commons = true; | |
2780 | } | |
2781 | if (filename != (char *) NULL) | |
2782 | { | |
2783 | lang_has_input_file = true; | |
2784 | } | |
1418c83b SC |
2785 | new->section_name = section_name; |
2786 | new->filename = filename; | |
075d7359 | 2787 | lang_list_init (&new->children); |
1418c83b | 2788 | } |
075d7359 | 2789 | |
1418c83b | 2790 | void |
8ddef552 DM |
2791 | lang_section_start (name, address) |
2792 | CONST char *name; | |
2793 | etree_type * address; | |
2fa0b342 | 2794 | { |
075d7359 SC |
2795 | lang_address_statement_type *ad = new_stat (lang_address_statement, stat_ptr); |
2796 | ||
2fa0b342 DHW |
2797 | ad->section_name = name; |
2798 | ad->address = address; | |
2799 | } | |
1418c83b | 2800 | |
60e8a534 ILT |
2801 | /* Set the start symbol to NAME. CMDLINE is nonzero if this is called |
2802 | because of a -e argument on the command line, or zero if this is | |
2803 | called by ENTRY in a linker script. Command line arguments take | |
2804 | precedence. */ | |
2805 | ||
3f38a017 SC |
2806 | /* WINDOWS_NT. When an entry point has been specified, we will also force |
2807 | this symbol to be defined by calling ldlang_add_undef (equivalent to | |
2808 | having switch -u entry_name on the command line). The reason we do | |
2809 | this is so that the user doesn't have to because they would have to use | |
2810 | the -u switch if they were specifying an entry point other than | |
2811 | _mainCRTStartup. Specifically, if creating a windows application, entry | |
2812 | point _WinMainCRTStartup must be specified. | |
2813 | What I have found for non console applications (entry not _mainCRTStartup) | |
2814 | is that the .obj that contains mainCRTStartup is brought in since it is | |
2815 | the first encountered in libc.lib and it has other symbols in it which will | |
2816 | be pulled in by the link process. To avoid this, adding -u with the entry | |
2817 | point name specified forces the correct .obj to be used. We can avoid | |
2818 | making the user do this by always adding the entry point name as an | |
2819 | undefined symbol. */ | |
2820 | ||
075d7359 | 2821 | void |
60e8a534 | 2822 | lang_add_entry (name, cmdline) |
8ddef552 | 2823 | CONST char *name; |
60e8a534 | 2824 | int cmdline; |
2fa0b342 | 2825 | { |
60e8a534 ILT |
2826 | static int from_cmdline; |
2827 | ||
2828 | if (entry_symbol == NULL | |
2829 | || cmdline | |
2830 | || ! from_cmdline) | |
2831 | { | |
2832 | entry_symbol = name; | |
2833 | from_cmdline = cmdline; | |
2834 | } | |
943fbd5b | 2835 | #if 0 |
3f38a017 SC |
2836 | /* don't do this yet. It seems to work (the executables run), but the |
2837 | image created is very different from what I was getting before indicating | |
2838 | that something else is being pulled in. When everything else is working, | |
2839 | then try to put this back in to see if it will do the right thing for | |
2840 | other more complicated applications */ | |
2841 | ldlang_add_undef (name); | |
2842 | #endif | |
2fa0b342 DHW |
2843 | } |
2844 | ||
2845 | void | |
8ddef552 DM |
2846 | lang_add_target (name) |
2847 | CONST char *name; | |
2fa0b342 | 2848 | { |
075d7359 SC |
2849 | lang_target_statement_type *new = new_stat (lang_target_statement, |
2850 | stat_ptr); | |
2851 | ||
2fa0b342 DHW |
2852 | new->target = name; |
2853 | ||
2854 | } | |
2fa0b342 | 2855 | |
2fa0b342 | 2856 | void |
8ddef552 DM |
2857 | lang_add_map (name) |
2858 | CONST char *name; | |
2fa0b342 | 2859 | { |
075d7359 SC |
2860 | while (*name) |
2861 | { | |
2862 | switch (*name) | |
2863 | { | |
2864 | case 'F': | |
2865 | map_option_f = true; | |
2866 | break; | |
2867 | } | |
2868 | name++; | |
2fa0b342 | 2869 | } |
2fa0b342 DHW |
2870 | } |
2871 | ||
075d7359 | 2872 | void |
8ddef552 DM |
2873 | lang_add_fill (exp) |
2874 | int exp; | |
2fa0b342 | 2875 | { |
075d7359 SC |
2876 | lang_fill_statement_type *new = new_stat (lang_fill_statement, |
2877 | stat_ptr); | |
2878 | ||
2fa0b342 DHW |
2879 | new->fill = exp; |
2880 | } | |
2881 | ||
075d7359 | 2882 | void |
8ddef552 DM |
2883 | lang_add_data (type, exp) |
2884 | int type; | |
2885 | union etree_union *exp; | |
2fa0b342 DHW |
2886 | { |
2887 | ||
075d7359 | 2888 | lang_data_statement_type *new = new_stat (lang_data_statement, |
2fa0b342 | 2889 | stat_ptr); |
075d7359 SC |
2890 | |
2891 | new->exp = exp; | |
2892 | new->type = type; | |
2fa0b342 DHW |
2893 | |
2894 | } | |
075d7359 | 2895 | |
4fdbafb2 ILT |
2896 | /* Create a new reloc statement. RELOC is the BFD relocation type to |
2897 | generate. HOWTO is the corresponding howto structure (we could | |
2898 | look this up, but the caller has already done so). SECTION is the | |
2899 | section to generate a reloc against, or NAME is the name of the | |
2900 | symbol to generate a reloc against. Exactly one of SECTION and | |
2901 | NAME must be NULL. ADDEND is an expression for the addend. */ | |
2902 | ||
2903 | void | |
2904 | lang_add_reloc (reloc, howto, section, name, addend) | |
2905 | bfd_reloc_code_real_type reloc; | |
cc38364d | 2906 | reloc_howto_type *howto; |
4fdbafb2 ILT |
2907 | asection *section; |
2908 | const char *name; | |
2909 | union etree_union *addend; | |
2910 | { | |
2911 | lang_reloc_statement_type *p = new_stat (lang_reloc_statement, stat_ptr); | |
2912 | ||
2913 | p->reloc = reloc; | |
2914 | p->howto = howto; | |
2915 | p->section = section; | |
2916 | p->name = name; | |
2917 | p->addend_exp = addend; | |
2918 | ||
2919 | p->addend_value = 0; | |
2920 | p->output_section = NULL; | |
2921 | p->output_vma = 0; | |
2922 | } | |
2923 | ||
2fa0b342 | 2924 | void |
8ddef552 DM |
2925 | lang_add_assignment (exp) |
2926 | etree_type * exp; | |
2fa0b342 | 2927 | { |
075d7359 SC |
2928 | lang_assignment_statement_type *new = new_stat (lang_assignment_statement, |
2929 | stat_ptr); | |
2930 | ||
2fa0b342 DHW |
2931 | new->exp = exp; |
2932 | } | |
2933 | ||
2934 | void | |
8ddef552 DM |
2935 | lang_add_attribute (attribute) |
2936 | enum statement_enum attribute; | |
2fa0b342 | 2937 | { |
075d7359 | 2938 | new_statement (attribute, sizeof (lang_statement_union_type), stat_ptr); |
2fa0b342 DHW |
2939 | } |
2940 | ||
075d7359 | 2941 | void |
8ddef552 DM |
2942 | lang_startup (name) |
2943 | CONST char *name; | |
2fa0b342 | 2944 | { |
075d7359 SC |
2945 | if (startup_file != (char *) NULL) |
2946 | { | |
ddddcdf0 | 2947 | einfo ("%P%Fmultiple STARTUP files\n"); |
075d7359 | 2948 | } |
2fa0b342 DHW |
2949 | first_file->filename = name; |
2950 | first_file->local_sym_name = name; | |
193c5f93 | 2951 | first_file->real = true; |
2fa0b342 | 2952 | |
075d7359 | 2953 | startup_file = name; |
2fa0b342 | 2954 | } |
075d7359 SC |
2955 | |
2956 | void | |
8ddef552 DM |
2957 | lang_float (maybe) |
2958 | boolean maybe; | |
2fa0b342 DHW |
2959 | { |
2960 | lang_float_flag = maybe; | |
2961 | } | |
2962 | ||
075d7359 | 2963 | void |
8ddef552 DM |
2964 | lang_leave_output_section_statement (fill, memspec) |
2965 | bfd_vma fill; | |
2966 | CONST char *memspec; | |
2fa0b342 DHW |
2967 | { |
2968 | current_section->fill = fill; | |
075d7359 | 2969 | current_section->region = lang_memory_region_lookup (memspec); |
2fa0b342 DHW |
2970 | stat_ptr = &statement_list; |
2971 | } | |
075d7359 | 2972 | |
9f32f7c2 SC |
2973 | /* |
2974 | Create an absolute symbol with the given name with the value of the | |
2975 | address of first byte of the section named. | |
2fa0b342 | 2976 | |
9f32f7c2 SC |
2977 | If the symbol already exists, then do nothing. |
2978 | */ | |
8cb5eb31 | 2979 | void |
c477527c ILT |
2980 | lang_abs_symbol_at_beginning_of (secname, name) |
2981 | const char *secname; | |
2982 | const char *name; | |
075d7359 | 2983 | { |
c477527c ILT |
2984 | struct bfd_link_hash_entry *h; |
2985 | ||
2986 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); | |
2987 | if (h == (struct bfd_link_hash_entry *) NULL) | |
2988 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); | |
2989 | ||
2990 | if (h->type == bfd_link_hash_new | |
2991 | || h->type == bfd_link_hash_undefined) | |
075d7359 | 2992 | { |
c477527c | 2993 | asection *sec; |
075d7359 | 2994 | |
c477527c ILT |
2995 | h->type = bfd_link_hash_defined; |
2996 | ||
2997 | sec = bfd_get_section_by_name (output_bfd, secname); | |
2998 | if (sec == (asection *) NULL) | |
2999 | h->u.def.value = 0; | |
075d7359 | 3000 | else |
c477527c ILT |
3001 | h->u.def.value = bfd_get_section_vma (output_bfd, sec); |
3002 | ||
686739e2 | 3003 | h->u.def.section = bfd_abs_section_ptr; |
9f32f7c2 | 3004 | } |
8cb5eb31 SC |
3005 | } |
3006 | ||
9f32f7c2 SC |
3007 | /* |
3008 | Create an absolute symbol with the given name with the value of the | |
3009 | address of the first byte after the end of the section named. | |
3010 | ||
3011 | If the symbol already exists, then do nothing. | |
3012 | */ | |
2fa0b342 | 3013 | void |
c477527c ILT |
3014 | lang_abs_symbol_at_end_of (secname, name) |
3015 | const char *secname; | |
3016 | const char *name; | |
075d7359 | 3017 | { |
c477527c ILT |
3018 | struct bfd_link_hash_entry *h; |
3019 | ||
3020 | h = bfd_link_hash_lookup (link_info.hash, name, true, true, true); | |
3021 | if (h == (struct bfd_link_hash_entry *) NULL) | |
3022 | einfo ("%P%F: bfd_link_hash_lookup failed: %E\n"); | |
3023 | ||
3024 | if (h->type == bfd_link_hash_new | |
3025 | || h->type == bfd_link_hash_undefined) | |
075d7359 | 3026 | { |
c477527c | 3027 | asection *sec; |
075d7359 | 3028 | |
c477527c | 3029 | h->type = bfd_link_hash_defined; |
075d7359 | 3030 | |
c477527c ILT |
3031 | sec = bfd_get_section_by_name (output_bfd, secname); |
3032 | if (sec == (asection *) NULL) | |
3033 | h->u.def.value = 0; | |
075d7359 | 3034 | else |
c477527c ILT |
3035 | h->u.def.value = (bfd_get_section_vma (output_bfd, sec) |
3036 | + bfd_section_size (output_bfd, sec)); | |
3037 | ||
686739e2 | 3038 | h->u.def.section = bfd_abs_section_ptr; |
9f32f7c2 | 3039 | } |
2fa0b342 DHW |
3040 | } |
3041 | ||
075d7359 | 3042 | void |
8ddef552 DM |
3043 | lang_statement_append (list, element, field) |
3044 | lang_statement_list_type * list; | |
3045 | lang_statement_union_type * element; | |
3046 | lang_statement_union_type ** field; | |
2fa0b342 DHW |
3047 | { |
3048 | *(list->tail) = element; | |
3049 | list->tail = field; | |
3050 | } | |
3051 | ||
173a0c3d | 3052 | /* Set the output format type. -oformat overrides scripts. */ |
6a02a973 | 3053 | |
097879bc | 3054 | void |
6a02a973 ILT |
3055 | lang_add_output_format (format, big, little, from_script) |
3056 | const char *format; | |
3057 | const char *big; | |
3058 | const char *little; | |
173a0c3d | 3059 | int from_script; |
097879bc | 3060 | { |
2c6635a4 | 3061 | if (output_target == NULL || !from_script) |
6a02a973 ILT |
3062 | { |
3063 | if (command_line.endian == ENDIAN_BIG | |
3064 | && big != NULL) | |
3065 | format = big; | |
3066 | else if (command_line.endian == ENDIAN_LITTLE | |
3067 | && little != NULL) | |
3068 | format = little; | |
3069 | ||
3070 | output_target = format; | |
3071 | } | |
097879bc | 3072 | } |
309c8153 ILT |
3073 | |
3074 | /* Enter a group. This creates a new lang_group_statement, and sets | |
3075 | stat_ptr to build new statements within the group. */ | |
3076 | ||
3077 | void | |
3078 | lang_enter_group () | |
3079 | { | |
3080 | lang_group_statement_type *g; | |
3081 | ||
3082 | g = new_stat (lang_group_statement, stat_ptr); | |
3083 | lang_list_init (&g->children); | |
3084 | stat_ptr = &g->children; | |
3085 | } | |
3086 | ||
3087 | /* Leave a group. This just resets stat_ptr to start writing to the | |
3088 | regular list of statements again. Note that this will not work if | |
3089 | groups can occur inside anything else which can adjust stat_ptr, | |
3090 | but currently they can't. */ | |
3091 | ||
3092 | void | |
3093 | lang_leave_group () | |
3094 | { | |
3095 | stat_ptr = &statement_list; | |
3096 | } |