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252b5132 | 1 | /* This module handles expression trees. |
a2b64bed | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
ea7c2e6c | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
87f2a346 | 4 | Free Software Foundation, Inc. |
8c95a62e | 5 | Written by Steve Chamberlain of Cygnus Support <sac@cygnus.com>. |
252b5132 | 6 | |
f96b4a7b | 7 | This file is part of the GNU Binutils. |
252b5132 | 8 | |
f96b4a7b | 9 | This program is free software; you can redistribute it and/or modify |
3ec57632 | 10 | it under the terms of the GNU General Public License as published by |
f96b4a7b NC |
11 | the Free Software Foundation; either version 3 of the License, or |
12 | (at your option) any later version. | |
252b5132 | 13 | |
f96b4a7b | 14 | This program is distributed in the hope that it will be useful, |
3ec57632 NC |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
3ec57632 | 19 | You should have received a copy of the GNU General Public License |
f96b4a7b NC |
20 | along with this program; if not, write to the Free Software |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
22 | MA 02110-1301, USA. */ | |
23 | ||
252b5132 | 24 | |
8c95a62e | 25 | /* This module is in charge of working out the contents of expressions. |
252b5132 | 26 | |
8c95a62e KH |
27 | It has to keep track of the relative/absness of a symbol etc. This |
28 | is done by keeping all values in a struct (an etree_value_type) | |
29 | which contains a value, a section to which it is relative and a | |
30 | valid bit. */ | |
252b5132 | 31 | |
252b5132 | 32 | #include "sysdep.h" |
3db64b00 | 33 | #include "bfd.h" |
252b5132 RH |
34 | #include "bfdlink.h" |
35 | ||
36 | #include "ld.h" | |
37 | #include "ldmain.h" | |
38 | #include "ldmisc.h" | |
39 | #include "ldexp.h" | |
f856040a | 40 | #include "ldlex.h" |
df2a7313 | 41 | #include <ldgram.h> |
252b5132 | 42 | #include "ldlang.h" |
c7d701b0 | 43 | #include "libiberty.h" |
2c382fb6 | 44 | #include "safe-ctype.h" |
252b5132 | 45 | |
e9ee469a | 46 | static void exp_fold_tree_1 (etree_type *); |
e9ee469a | 47 | static bfd_vma align_n (bfd_vma, bfd_vma); |
2d20f7bf | 48 | |
ba916c8a MM |
49 | segment_type *segments; |
50 | ||
e9ee469a | 51 | struct ldexp_control expld; |
fbbb9ac5 | 52 | |
7b17f854 | 53 | /* Print the string representation of the given token. Surround it |
b34976b6 | 54 | with spaces if INFIX_P is TRUE. */ |
7b17f854 | 55 | |
252b5132 | 56 | static void |
1579bae1 | 57 | exp_print_token (token_code_type code, int infix_p) |
252b5132 | 58 | { |
4da711b1 | 59 | static const struct |
c7d701b0 | 60 | { |
8c95a62e | 61 | token_code_type code; |
c7d701b0 NC |
62 | char * name; |
63 | } | |
64 | table[] = | |
65 | { | |
8c95a62e | 66 | { INT, "int" }, |
8c95a62e KH |
67 | { NAME, "NAME" }, |
68 | { PLUSEQ, "+=" }, | |
69 | { MINUSEQ, "-=" }, | |
70 | { MULTEQ, "*=" }, | |
71 | { DIVEQ, "/=" }, | |
72 | { LSHIFTEQ, "<<=" }, | |
73 | { RSHIFTEQ, ">>=" }, | |
74 | { ANDEQ, "&=" }, | |
75 | { OREQ, "|=" }, | |
76 | { OROR, "||" }, | |
77 | { ANDAND, "&&" }, | |
78 | { EQ, "==" }, | |
79 | { NE, "!=" }, | |
80 | { LE, "<=" }, | |
81 | { GE, ">=" }, | |
82 | { LSHIFT, "<<" }, | |
7cecdbff | 83 | { RSHIFT, ">>" }, |
8c95a62e KH |
84 | { ALIGN_K, "ALIGN" }, |
85 | { BLOCK, "BLOCK" }, | |
c7d701b0 NC |
86 | { QUAD, "QUAD" }, |
87 | { SQUAD, "SQUAD" }, | |
88 | { LONG, "LONG" }, | |
89 | { SHORT, "SHORT" }, | |
90 | { BYTE, "BYTE" }, | |
8c95a62e KH |
91 | { SECTIONS, "SECTIONS" }, |
92 | { SIZEOF_HEADERS, "SIZEOF_HEADERS" }, | |
8c95a62e KH |
93 | { MEMORY, "MEMORY" }, |
94 | { DEFINED, "DEFINED" }, | |
95 | { TARGET_K, "TARGET" }, | |
96 | { SEARCH_DIR, "SEARCH_DIR" }, | |
97 | { MAP, "MAP" }, | |
8c95a62e | 98 | { ENTRY, "ENTRY" }, |
c7d701b0 | 99 | { NEXT, "NEXT" }, |
362c1d1a | 100 | { ALIGNOF, "ALIGNOF" }, |
c7d701b0 NC |
101 | { SIZEOF, "SIZEOF" }, |
102 | { ADDR, "ADDR" }, | |
103 | { LOADADDR, "LOADADDR" }, | |
24718e3b | 104 | { CONSTANT, "CONSTANT" }, |
8c0848b5 AM |
105 | { ABSOLUTE, "ABSOLUTE" }, |
106 | { MAX_K, "MAX" }, | |
107 | { MIN_K, "MIN" }, | |
108 | { ASSERT_K, "ASSERT" }, | |
1049f94e | 109 | { REL, "relocatable" }, |
2d20f7bf | 110 | { DATA_SEGMENT_ALIGN, "DATA_SEGMENT_ALIGN" }, |
8c37241b | 111 | { DATA_SEGMENT_RELRO_END, "DATA_SEGMENT_RELRO_END" }, |
ba916c8a | 112 | { DATA_SEGMENT_END, "DATA_SEGMENT_END" }, |
3ec57632 NC |
113 | { ORIGIN, "ORIGIN" }, |
114 | { LENGTH, "LENGTH" }, | |
ba916c8a | 115 | { SEGMENT_START, "SEGMENT_START" } |
8c95a62e | 116 | }; |
252b5132 RH |
117 | unsigned int idx; |
118 | ||
7b17f854 RS |
119 | for (idx = 0; idx < ARRAY_SIZE (table); idx++) |
120 | if (table[idx].code == code) | |
121 | break; | |
c7d701b0 | 122 | |
7b17f854 RS |
123 | if (infix_p) |
124 | fputc (' ', config.map_file); | |
125 | ||
126 | if (idx < ARRAY_SIZE (table)) | |
127 | fputs (table[idx].name, config.map_file); | |
128 | else if (code < 127) | |
129 | fputc (code, config.map_file); | |
c7d701b0 | 130 | else |
7b17f854 RS |
131 | fprintf (config.map_file, "<code %d>", code); |
132 | ||
133 | if (infix_p) | |
134 | fputc (' ', config.map_file); | |
252b5132 RH |
135 | } |
136 | ||
4de2d33d | 137 | static void |
e9ee469a | 138 | make_abs (void) |
252b5132 | 139 | { |
7542af2a AM |
140 | if (expld.result.section != NULL) |
141 | expld.result.value += expld.result.section->vma; | |
e9ee469a | 142 | expld.result.section = bfd_abs_section_ptr; |
252b5132 RH |
143 | } |
144 | ||
e9ee469a | 145 | static void |
1579bae1 | 146 | new_abs (bfd_vma value) |
252b5132 | 147 | { |
e9ee469a AM |
148 | expld.result.valid_p = TRUE; |
149 | expld.result.section = bfd_abs_section_ptr; | |
150 | expld.result.value = value; | |
151 | expld.result.str = NULL; | |
252b5132 RH |
152 | } |
153 | ||
252b5132 | 154 | etree_type * |
1579bae1 | 155 | exp_intop (bfd_vma value) |
252b5132 | 156 | { |
d3ce72d0 NC |
157 | etree_type *new_e = (etree_type *) stat_alloc (sizeof (new_e->value)); |
158 | new_e->type.node_code = INT; | |
159 | new_e->type.lineno = lineno; | |
160 | new_e->value.value = value; | |
161 | new_e->value.str = NULL; | |
162 | new_e->type.node_class = etree_value; | |
163 | return new_e; | |
2c382fb6 | 164 | } |
252b5132 | 165 | |
2c382fb6 | 166 | etree_type * |
1579bae1 | 167 | exp_bigintop (bfd_vma value, char *str) |
2c382fb6 | 168 | { |
d3ce72d0 NC |
169 | etree_type *new_e = (etree_type *) stat_alloc (sizeof (new_e->value)); |
170 | new_e->type.node_code = INT; | |
171 | new_e->type.lineno = lineno; | |
172 | new_e->value.value = value; | |
173 | new_e->value.str = str; | |
174 | new_e->type.node_class = etree_value; | |
175 | return new_e; | |
252b5132 RH |
176 | } |
177 | ||
1049f94e | 178 | /* Build an expression representing an unnamed relocatable value. */ |
252b5132 RH |
179 | |
180 | etree_type * | |
1579bae1 | 181 | exp_relop (asection *section, bfd_vma value) |
252b5132 | 182 | { |
d3ce72d0 NC |
183 | etree_type *new_e = (etree_type *) stat_alloc (sizeof (new_e->rel)); |
184 | new_e->type.node_code = REL; | |
185 | new_e->type.lineno = lineno; | |
186 | new_e->type.node_class = etree_rel; | |
187 | new_e->rel.section = section; | |
188 | new_e->rel.value = value; | |
189 | return new_e; | |
252b5132 RH |
190 | } |
191 | ||
7542af2a AM |
192 | static void |
193 | new_number (bfd_vma value) | |
194 | { | |
195 | expld.result.valid_p = TRUE; | |
196 | expld.result.value = value; | |
197 | expld.result.str = NULL; | |
198 | expld.result.section = NULL; | |
199 | } | |
200 | ||
e9ee469a | 201 | static void |
5942515f | 202 | new_rel (bfd_vma value, asection *section) |
252b5132 | 203 | { |
e9ee469a AM |
204 | expld.result.valid_p = TRUE; |
205 | expld.result.value = value; | |
5942515f | 206 | expld.result.str = NULL; |
e9ee469a | 207 | expld.result.section = section; |
252b5132 RH |
208 | } |
209 | ||
e9ee469a AM |
210 | static void |
211 | new_rel_from_abs (bfd_vma value) | |
252b5132 | 212 | { |
e9ee469a AM |
213 | expld.result.valid_p = TRUE; |
214 | expld.result.value = value - expld.section->vma; | |
215 | expld.result.str = NULL; | |
216 | expld.result.section = expld.section; | |
252b5132 RH |
217 | } |
218 | ||
e9ee469a AM |
219 | static void |
220 | fold_unary (etree_type *tree) | |
0ae1cf52 | 221 | { |
e9ee469a AM |
222 | exp_fold_tree_1 (tree->unary.child); |
223 | if (expld.result.valid_p) | |
0ae1cf52 AM |
224 | { |
225 | switch (tree->type.node_code) | |
226 | { | |
227 | case ALIGN_K: | |
e9ee469a | 228 | if (expld.phase != lang_first_phase_enum) |
dea2f0a8 | 229 | new_rel_from_abs (align_n (expld.dot, expld.result.value)); |
0ae1cf52 | 230 | else |
e9ee469a | 231 | expld.result.valid_p = FALSE; |
0ae1cf52 AM |
232 | break; |
233 | ||
234 | case ABSOLUTE: | |
e9ee469a | 235 | make_abs (); |
0ae1cf52 AM |
236 | break; |
237 | ||
238 | case '~': | |
e9ee469a | 239 | expld.result.value = ~expld.result.value; |
0ae1cf52 AM |
240 | break; |
241 | ||
242 | case '!': | |
e9ee469a | 243 | expld.result.value = !expld.result.value; |
0ae1cf52 AM |
244 | break; |
245 | ||
246 | case '-': | |
e9ee469a | 247 | expld.result.value = -expld.result.value; |
0ae1cf52 AM |
248 | break; |
249 | ||
250 | case NEXT: | |
251 | /* Return next place aligned to value. */ | |
e9ee469a | 252 | if (expld.phase != lang_first_phase_enum) |
0ae1cf52 | 253 | { |
e9ee469a AM |
254 | make_abs (); |
255 | expld.result.value = align_n (expld.dot, expld.result.value); | |
0ae1cf52 AM |
256 | } |
257 | else | |
e9ee469a | 258 | expld.result.valid_p = FALSE; |
0ae1cf52 AM |
259 | break; |
260 | ||
261 | case DATA_SEGMENT_END: | |
ea7c2e6c AM |
262 | if (expld.phase == lang_first_phase_enum |
263 | || expld.section != bfd_abs_section_ptr) | |
0ae1cf52 | 264 | { |
ea7c2e6c AM |
265 | expld.result.valid_p = FALSE; |
266 | } | |
267 | else if (expld.dataseg.phase == exp_dataseg_align_seen | |
268 | || expld.dataseg.phase == exp_dataseg_relro_seen) | |
269 | { | |
270 | expld.dataseg.phase = exp_dataseg_end_seen; | |
271 | expld.dataseg.end = expld.result.value; | |
272 | } | |
273 | else if (expld.dataseg.phase == exp_dataseg_done | |
274 | || expld.dataseg.phase == exp_dataseg_adjust | |
275 | || expld.dataseg.phase == exp_dataseg_relro_adjust) | |
276 | { | |
277 | /* OK. */ | |
0ae1cf52 AM |
278 | } |
279 | else | |
e9ee469a | 280 | expld.result.valid_p = FALSE; |
0ae1cf52 AM |
281 | break; |
282 | ||
283 | default: | |
284 | FAIL (); | |
285 | break; | |
286 | } | |
287 | } | |
0ae1cf52 AM |
288 | } |
289 | ||
e9ee469a AM |
290 | static void |
291 | fold_binary (etree_type *tree) | |
252b5132 | 292 | { |
4ac0c898 | 293 | etree_value_type lhs; |
e9ee469a | 294 | exp_fold_tree_1 (tree->binary.lhs); |
ba916c8a MM |
295 | |
296 | /* The SEGMENT_START operator is special because its first | |
8c0848b5 AM |
297 | operand is a string, not the name of a symbol. Note that the |
298 | operands have been swapped, so binary.lhs is second (default) | |
299 | operand, binary.rhs is first operand. */ | |
e9ee469a | 300 | if (expld.result.valid_p && tree->type.node_code == SEGMENT_START) |
ba916c8a MM |
301 | { |
302 | const char *segment_name; | |
303 | segment_type *seg; | |
7542af2a | 304 | |
ba916c8a MM |
305 | /* Check to see if the user has overridden the default |
306 | value. */ | |
307 | segment_name = tree->binary.rhs->name.name; | |
308 | for (seg = segments; seg; seg = seg->next) | |
309 | if (strcmp (seg->name, segment_name) == 0) | |
310 | { | |
c8ce5710 L |
311 | if (!seg->used |
312 | && config.magic_demand_paged | |
313 | && (seg->value % config.maxpagesize) != 0) | |
314 | einfo (_("%P: warning: address of `%s' isn't multiple of maximum page size\n"), | |
315 | segment_name); | |
ba916c8a | 316 | seg->used = TRUE; |
7542af2a | 317 | new_rel_from_abs (seg->value); |
ba916c8a MM |
318 | break; |
319 | } | |
4ac0c898 | 320 | return; |
ba916c8a | 321 | } |
252b5132 | 322 | |
4ac0c898 AM |
323 | lhs = expld.result; |
324 | exp_fold_tree_1 (tree->binary.rhs); | |
325 | expld.result.valid_p &= lhs.valid_p; | |
326 | ||
327 | if (expld.result.valid_p) | |
328 | { | |
7542af2a | 329 | if (lhs.section != expld.result.section) |
252b5132 | 330 | { |
7542af2a AM |
331 | /* If the values are from different sections, and neither is |
332 | just a number, make both the source arguments absolute. */ | |
333 | if (expld.result.section != NULL | |
334 | && lhs.section != NULL) | |
335 | { | |
336 | make_abs (); | |
337 | lhs.value += lhs.section->vma; | |
338 | } | |
339 | ||
340 | /* If the rhs is just a number, keep the lhs section. */ | |
341 | else if (expld.result.section == NULL) | |
342 | expld.result.section = lhs.section; | |
4ac0c898 | 343 | } |
252b5132 | 344 | |
4ac0c898 AM |
345 | switch (tree->type.node_code) |
346 | { | |
347 | case '%': | |
348 | if (expld.result.value != 0) | |
349 | expld.result.value = ((bfd_signed_vma) lhs.value | |
350 | % (bfd_signed_vma) expld.result.value); | |
351 | else if (expld.phase != lang_mark_phase_enum) | |
352 | einfo (_("%F%S %% by zero\n")); | |
353 | break; | |
252b5132 | 354 | |
4ac0c898 AM |
355 | case '/': |
356 | if (expld.result.value != 0) | |
357 | expld.result.value = ((bfd_signed_vma) lhs.value | |
358 | / (bfd_signed_vma) expld.result.value); | |
359 | else if (expld.phase != lang_mark_phase_enum) | |
360 | einfo (_("%F%S / by zero\n")); | |
361 | break; | |
252b5132 | 362 | |
e9ee469a | 363 | #define BOP(x, y) \ |
7542af2a AM |
364 | case x: \ |
365 | expld.result.value = lhs.value y expld.result.value; \ | |
366 | break; | |
367 | ||
368 | #define BOPN(x, y) \ | |
369 | case x: \ | |
370 | expld.result.value = lhs.value y expld.result.value; \ | |
371 | expld.result.section = NULL; \ | |
372 | break; | |
e9ee469a | 373 | |
4ac0c898 AM |
374 | BOP ('+', +); |
375 | BOP ('*', *); | |
376 | BOP ('-', -); | |
377 | BOP (LSHIFT, <<); | |
378 | BOP (RSHIFT, >>); | |
4ac0c898 AM |
379 | BOP ('&', &); |
380 | BOP ('^', ^); | |
381 | BOP ('|', |); | |
7542af2a AM |
382 | BOPN (EQ, ==); |
383 | BOPN (NE, !=); | |
384 | BOPN ('<', <); | |
385 | BOPN ('>', >); | |
386 | BOPN (LE, <=); | |
387 | BOPN (GE, >=); | |
388 | BOPN (ANDAND, &&); | |
389 | BOPN (OROR, ||); | |
4ac0c898 AM |
390 | |
391 | case MAX_K: | |
392 | if (lhs.value > expld.result.value) | |
393 | expld.result.value = lhs.value; | |
394 | break; | |
252b5132 | 395 | |
4ac0c898 AM |
396 | case MIN_K: |
397 | if (lhs.value < expld.result.value) | |
398 | expld.result.value = lhs.value; | |
399 | break; | |
252b5132 | 400 | |
4ac0c898 AM |
401 | case ALIGN_K: |
402 | expld.result.value = align_n (lhs.value, expld.result.value); | |
403 | break; | |
c468c8bc | 404 | |
4ac0c898 AM |
405 | case DATA_SEGMENT_ALIGN: |
406 | expld.dataseg.relro = exp_dataseg_relro_start; | |
ea7c2e6c AM |
407 | if (expld.phase == lang_first_phase_enum |
408 | || expld.section != bfd_abs_section_ptr) | |
409 | expld.result.valid_p = FALSE; | |
410 | else | |
4ac0c898 AM |
411 | { |
412 | bfd_vma maxpage = lhs.value; | |
413 | bfd_vma commonpage = expld.result.value; | |
2d20f7bf | 414 | |
4ac0c898 AM |
415 | expld.result.value = align_n (expld.dot, maxpage); |
416 | if (expld.dataseg.phase == exp_dataseg_relro_adjust) | |
417 | expld.result.value = expld.dataseg.base; | |
ea7c2e6c AM |
418 | else if (expld.dataseg.phase == exp_dataseg_adjust) |
419 | { | |
420 | if (commonpage < maxpage) | |
421 | expld.result.value += ((expld.dot + commonpage - 1) | |
422 | & (maxpage - commonpage)); | |
423 | } | |
424 | else | |
4ac0c898 AM |
425 | { |
426 | expld.result.value += expld.dot & (maxpage - 1); | |
ea7c2e6c AM |
427 | if (expld.dataseg.phase == exp_dataseg_done) |
428 | { | |
429 | /* OK. */ | |
430 | } | |
431 | else if (expld.dataseg.phase == exp_dataseg_none) | |
2d20f7bf | 432 | { |
4ac0c898 AM |
433 | expld.dataseg.phase = exp_dataseg_align_seen; |
434 | expld.dataseg.min_base = expld.dot; | |
435 | expld.dataseg.base = expld.result.value; | |
436 | expld.dataseg.pagesize = commonpage; | |
437 | expld.dataseg.maxpagesize = maxpage; | |
438 | expld.dataseg.relro_end = 0; | |
2d20f7bf | 439 | } |
ea7c2e6c AM |
440 | else |
441 | expld.result.valid_p = FALSE; | |
2d20f7bf | 442 | } |
4ac0c898 | 443 | } |
4ac0c898 | 444 | break; |
e9ee469a | 445 | |
4ac0c898 AM |
446 | case DATA_SEGMENT_RELRO_END: |
447 | expld.dataseg.relro = exp_dataseg_relro_end; | |
ea7c2e6c AM |
448 | if (expld.phase == lang_first_phase_enum |
449 | || expld.section != bfd_abs_section_ptr) | |
450 | expld.result.valid_p = FALSE; | |
451 | else if (expld.dataseg.phase == exp_dataseg_align_seen | |
452 | || expld.dataseg.phase == exp_dataseg_adjust | |
453 | || expld.dataseg.phase == exp_dataseg_relro_adjust | |
454 | || expld.dataseg.phase == exp_dataseg_done) | |
4ac0c898 AM |
455 | { |
456 | if (expld.dataseg.phase == exp_dataseg_align_seen | |
457 | || expld.dataseg.phase == exp_dataseg_relro_adjust) | |
458 | expld.dataseg.relro_end = lhs.value + expld.result.value; | |
e9ee469a | 459 | |
4ac0c898 AM |
460 | if (expld.dataseg.phase == exp_dataseg_relro_adjust |
461 | && (expld.dataseg.relro_end | |
462 | & (expld.dataseg.pagesize - 1))) | |
463 | { | |
464 | expld.dataseg.relro_end += expld.dataseg.pagesize - 1; | |
465 | expld.dataseg.relro_end &= ~(expld.dataseg.pagesize - 1); | |
466 | expld.result.value = (expld.dataseg.relro_end | |
467 | - expld.result.value); | |
a4f5ad88 JJ |
468 | } |
469 | else | |
4ac0c898 | 470 | expld.result.value = lhs.value; |
a4f5ad88 | 471 | |
4ac0c898 AM |
472 | if (expld.dataseg.phase == exp_dataseg_align_seen) |
473 | expld.dataseg.phase = exp_dataseg_relro_seen; | |
252b5132 | 474 | } |
4ac0c898 AM |
475 | else |
476 | expld.result.valid_p = FALSE; | |
477 | break; | |
478 | ||
479 | default: | |
480 | FAIL (); | |
252b5132 | 481 | } |
252b5132 | 482 | } |
252b5132 RH |
483 | } |
484 | ||
e9ee469a AM |
485 | static void |
486 | fold_trinary (etree_type *tree) | |
0ae1cf52 | 487 | { |
e9ee469a AM |
488 | exp_fold_tree_1 (tree->trinary.cond); |
489 | if (expld.result.valid_p) | |
490 | exp_fold_tree_1 (expld.result.value | |
491 | ? tree->trinary.lhs | |
492 | : tree->trinary.rhs); | |
0ae1cf52 AM |
493 | } |
494 | ||
e9ee469a AM |
495 | static void |
496 | fold_name (etree_type *tree) | |
252b5132 | 497 | { |
e9ee469a | 498 | memset (&expld.result, 0, sizeof (expld.result)); |
c468c8bc | 499 | |
4de2d33d | 500 | switch (tree->type.node_code) |
8c95a62e KH |
501 | { |
502 | case SIZEOF_HEADERS: | |
e9ee469a AM |
503 | if (expld.phase != lang_first_phase_enum) |
504 | { | |
505 | bfd_vma hdr_size = 0; | |
506 | /* Don't find the real header size if only marking sections; | |
507 | The bfd function may cache incorrect data. */ | |
508 | if (expld.phase != lang_mark_phase_enum) | |
f13a99db | 509 | hdr_size = bfd_sizeof_headers (link_info.output_bfd, &link_info); |
7542af2a | 510 | new_number (hdr_size); |
e9ee469a | 511 | } |
8c95a62e | 512 | break; |
67469e1f | 513 | |
8c95a62e | 514 | case DEFINED: |
e759c116 | 515 | expld.uses_defined = TRUE; |
e9ee469a | 516 | if (expld.phase == lang_first_phase_enum) |
1b493742 | 517 | lang_track_definedness (tree->name.name); |
8c95a62e KH |
518 | else |
519 | { | |
520 | struct bfd_link_hash_entry *h; | |
420e579c HPN |
521 | int def_iteration |
522 | = lang_symbol_definition_iteration (tree->name.name); | |
8c95a62e | 523 | |
f13a99db AM |
524 | h = bfd_wrapped_link_hash_lookup (link_info.output_bfd, |
525 | &link_info, | |
8c95a62e | 526 | tree->name.name, |
b34976b6 | 527 | FALSE, FALSE, TRUE); |
7542af2a AM |
528 | new_number (h != NULL |
529 | && (h->type == bfd_link_hash_defined | |
530 | || h->type == bfd_link_hash_defweak | |
531 | || h->type == bfd_link_hash_common) | |
532 | && (def_iteration == lang_statement_iteration | |
533 | || def_iteration == -1)); | |
8c95a62e KH |
534 | } |
535 | break; | |
67469e1f | 536 | |
8c95a62e | 537 | case NAME: |
e9ee469a AM |
538 | if (expld.phase == lang_first_phase_enum) |
539 | ; | |
540 | else if (tree->name.name[0] == '.' && tree->name.name[1] == 0) | |
541 | new_rel_from_abs (expld.dot); | |
542 | else | |
8c95a62e KH |
543 | { |
544 | struct bfd_link_hash_entry *h; | |
545 | ||
f13a99db AM |
546 | h = bfd_wrapped_link_hash_lookup (link_info.output_bfd, |
547 | &link_info, | |
8c95a62e | 548 | tree->name.name, |
1b493742 NS |
549 | TRUE, FALSE, TRUE); |
550 | if (!h) | |
551 | einfo (_("%P%F: bfd_link_hash_lookup failed: %E\n")); | |
552 | else if (h->type == bfd_link_hash_defined | |
553 | || h->type == bfd_link_hash_defweak) | |
8c95a62e | 554 | { |
7542af2a | 555 | asection *output_section; |
8c95a62e | 556 | |
7542af2a AM |
557 | output_section = h->u.def.section->output_section; |
558 | if (output_section == NULL) | |
559 | { | |
560 | if (expld.phase != lang_mark_phase_enum) | |
561 | einfo (_("%X%S: unresolvable symbol `%s'" | |
562 | " referenced in expression\n"), | |
563 | tree->name.name); | |
8c95a62e | 564 | } |
5c3049d2 AM |
565 | else if (output_section == bfd_abs_section_ptr |
566 | && (expld.section != bfd_abs_section_ptr | |
567 | || ld_compatibility >= 221)) | |
abf4be64 | 568 | new_number (h->u.def.value + h->u.def.section->output_offset); |
7542af2a AM |
569 | else |
570 | new_rel (h->u.def.value + h->u.def.section->output_offset, | |
571 | output_section); | |
8c95a62e | 572 | } |
e9ee469a AM |
573 | else if (expld.phase == lang_final_phase_enum |
574 | || expld.assigning_to_dot) | |
8c95a62e KH |
575 | einfo (_("%F%S: undefined symbol `%s' referenced in expression\n"), |
576 | tree->name.name); | |
1b493742 NS |
577 | else if (h->type == bfd_link_hash_new) |
578 | { | |
579 | h->type = bfd_link_hash_undefined; | |
580 | h->u.undef.abfd = NULL; | |
3eda52aa | 581 | if (h->u.undef.next == NULL && h != link_info.hash->undefs_tail) |
a010d60f | 582 | bfd_link_add_undef (link_info.hash, h); |
1b493742 | 583 | } |
8c95a62e KH |
584 | } |
585 | break; | |
586 | ||
587 | case ADDR: | |
e9ee469a | 588 | if (expld.phase != lang_first_phase_enum) |
8c95a62e KH |
589 | { |
590 | lang_output_section_statement_type *os; | |
591 | ||
592 | os = lang_output_section_find (tree->name.name); | |
cc3e2771 NS |
593 | if (os == NULL) |
594 | { | |
595 | if (expld.phase == lang_final_phase_enum) | |
596 | einfo (_("%F%S: undefined section `%s' referenced in expression\n"), | |
597 | tree->name.name); | |
598 | } | |
599 | else if (os->processed_vma) | |
5942515f | 600 | new_rel (0, os->bfd_section); |
8c95a62e | 601 | } |
8c95a62e KH |
602 | break; |
603 | ||
604 | case LOADADDR: | |
e9ee469a | 605 | if (expld.phase != lang_first_phase_enum) |
8c95a62e KH |
606 | { |
607 | lang_output_section_statement_type *os; | |
608 | ||
609 | os = lang_output_section_find (tree->name.name); | |
cc3e2771 NS |
610 | if (os == NULL) |
611 | { | |
612 | if (expld.phase == lang_final_phase_enum) | |
613 | einfo (_("%F%S: undefined section `%s' referenced in expression\n"), | |
614 | tree->name.name); | |
615 | } | |
616 | else if (os->processed_lma) | |
1b493742 | 617 | { |
e9ee469a | 618 | if (os->load_base == NULL) |
3e23777d | 619 | new_abs (os->bfd_section->lma); |
e9ee469a | 620 | else |
67469e1f AM |
621 | { |
622 | exp_fold_tree_1 (os->load_base); | |
819da74e AM |
623 | if (expld.result.valid_p) |
624 | make_abs (); | |
67469e1f | 625 | } |
1b493742 | 626 | } |
8c95a62e | 627 | } |
8c95a62e KH |
628 | break; |
629 | ||
630 | case SIZEOF: | |
362c1d1a | 631 | case ALIGNOF: |
e9ee469a | 632 | if (expld.phase != lang_first_phase_enum) |
8c95a62e | 633 | { |
8c95a62e KH |
634 | lang_output_section_statement_type *os; |
635 | ||
636 | os = lang_output_section_find (tree->name.name); | |
5397b1fe | 637 | if (os == NULL) |
cc3e2771 NS |
638 | { |
639 | if (expld.phase == lang_final_phase_enum) | |
640 | einfo (_("%F%S: undefined section `%s' referenced in expression\n"), | |
641 | tree->name.name); | |
7542af2a | 642 | new_number (0); |
cc3e2771 | 643 | } |
cde9e0be | 644 | else if (os->processed_vma) |
362c1d1a NS |
645 | { |
646 | bfd_vma val; | |
647 | ||
648 | if (tree->type.node_code == SIZEOF) | |
f13a99db AM |
649 | val = (os->bfd_section->size |
650 | / bfd_octets_per_byte (link_info.output_bfd)); | |
362c1d1a NS |
651 | else |
652 | val = (bfd_vma)1 << os->bfd_section->alignment_power; | |
653 | ||
7542af2a | 654 | new_number (val); |
362c1d1a | 655 | } |
8c95a62e | 656 | } |
8c95a62e KH |
657 | break; |
658 | ||
3ec57632 NC |
659 | case LENGTH: |
660 | { | |
661 | lang_memory_region_type *mem; | |
662 | ||
663 | mem = lang_memory_region_lookup (tree->name.name, FALSE); | |
664 | if (mem != NULL) | |
7542af2a | 665 | new_number (mem->length); |
3ec57632 | 666 | else |
e9ee469a AM |
667 | einfo (_("%F%S: undefined MEMORY region `%s'" |
668 | " referenced in expression\n"), tree->name.name); | |
3ec57632 NC |
669 | } |
670 | break; | |
671 | ||
672 | case ORIGIN: | |
7542af2a AM |
673 | if (expld.phase != lang_first_phase_enum) |
674 | { | |
675 | lang_memory_region_type *mem; | |
3ec57632 | 676 | |
7542af2a AM |
677 | mem = lang_memory_region_lookup (tree->name.name, FALSE); |
678 | if (mem != NULL) | |
679 | new_rel_from_abs (mem->origin); | |
680 | else | |
681 | einfo (_("%F%S: undefined MEMORY region `%s'" | |
682 | " referenced in expression\n"), tree->name.name); | |
683 | } | |
3ec57632 NC |
684 | break; |
685 | ||
24718e3b L |
686 | case CONSTANT: |
687 | if (strcmp (tree->name.name, "MAXPAGESIZE") == 0) | |
7542af2a | 688 | new_number (config.maxpagesize); |
24718e3b | 689 | else if (strcmp (tree->name.name, "COMMONPAGESIZE") == 0) |
7542af2a | 690 | new_number (config.commonpagesize); |
24718e3b L |
691 | else |
692 | einfo (_("%F%S: unknown constant `%s' referenced in expression\n"), | |
693 | tree->name.name); | |
694 | break; | |
695 | ||
8c95a62e KH |
696 | default: |
697 | FAIL (); | |
698 | break; | |
699 | } | |
252b5132 | 700 | } |
8c95a62e | 701 | |
e9ee469a AM |
702 | static void |
703 | exp_fold_tree_1 (etree_type *tree) | |
252b5132 | 704 | { |
252b5132 RH |
705 | if (tree == NULL) |
706 | { | |
e9ee469a AM |
707 | memset (&expld.result, 0, sizeof (expld.result)); |
708 | return; | |
252b5132 RH |
709 | } |
710 | ||
4de2d33d | 711 | switch (tree->type.node_class) |
252b5132 RH |
712 | { |
713 | case etree_value: | |
5c3049d2 AM |
714 | if (expld.section == bfd_abs_section_ptr |
715 | && ld_compatibility < 221) | |
716 | new_abs (tree->value.value); | |
717 | else | |
718 | new_number (tree->value.value); | |
5942515f | 719 | expld.result.str = tree->value.str; |
252b5132 RH |
720 | break; |
721 | ||
722 | case etree_rel: | |
e9ee469a AM |
723 | if (expld.phase != lang_first_phase_enum) |
724 | { | |
725 | asection *output_section = tree->rel.section->output_section; | |
726 | new_rel (tree->rel.value + tree->rel.section->output_offset, | |
5942515f | 727 | output_section); |
e9ee469a | 728 | } |
252b5132 | 729 | else |
e9ee469a | 730 | memset (&expld.result, 0, sizeof (expld.result)); |
252b5132 RH |
731 | break; |
732 | ||
733 | case etree_assert: | |
e9ee469a | 734 | exp_fold_tree_1 (tree->assert_s.child); |
5397b1fe AM |
735 | if (expld.phase == lang_final_phase_enum && !expld.result.value) |
736 | einfo ("%X%P: %s\n", tree->assert_s.message); | |
252b5132 RH |
737 | break; |
738 | ||
739 | case etree_unary: | |
e9ee469a | 740 | fold_unary (tree); |
252b5132 RH |
741 | break; |
742 | ||
743 | case etree_binary: | |
e9ee469a | 744 | fold_binary (tree); |
252b5132 | 745 | break; |
0ae1cf52 AM |
746 | |
747 | case etree_trinary: | |
e9ee469a | 748 | fold_trinary (tree); |
0ae1cf52 | 749 | break; |
252b5132 RH |
750 | |
751 | case etree_assign: | |
752 | case etree_provide: | |
b46a87b1 | 753 | case etree_provided: |
252b5132 RH |
754 | if (tree->assign.dst[0] == '.' && tree->assign.dst[1] == 0) |
755 | { | |
c7d701b0 | 756 | /* Assignment to dot can only be done during allocation. */ |
b46a87b1 | 757 | if (tree->type.node_class != etree_assign) |
252b5132 | 758 | einfo (_("%F%S can not PROVIDE assignment to location counter\n")); |
e9ee469a AM |
759 | if (expld.phase == lang_mark_phase_enum |
760 | || expld.phase == lang_allocating_phase_enum | |
761 | || (expld.phase == lang_final_phase_enum | |
762 | && expld.section == bfd_abs_section_ptr)) | |
252b5132 | 763 | { |
fbbb9ac5 | 764 | /* Notify the folder that this is an assignment to dot. */ |
e9ee469a AM |
765 | expld.assigning_to_dot = TRUE; |
766 | exp_fold_tree_1 (tree->assign.src); | |
767 | expld.assigning_to_dot = FALSE; | |
768 | ||
769 | if (!expld.result.valid_p) | |
770 | { | |
771 | if (expld.phase != lang_mark_phase_enum) | |
772 | einfo (_("%F%S invalid assignment to location counter\n")); | |
773 | } | |
774 | else if (expld.dotp == NULL) | |
775 | einfo (_("%F%S assignment to location counter" | |
776 | " invalid outside of SECTION\n")); | |
252b5132 RH |
777 | else |
778 | { | |
e9ee469a AM |
779 | bfd_vma nextdot; |
780 | ||
7542af2a AM |
781 | nextdot = expld.result.value; |
782 | if (expld.result.section != NULL) | |
783 | nextdot += expld.result.section->vma; | |
784 | else | |
785 | nextdot += expld.section->vma; | |
e9ee469a AM |
786 | if (nextdot < expld.dot |
787 | && expld.section != bfd_abs_section_ptr) | |
788 | einfo (_("%F%S cannot move location counter backwards" | |
789 | " (from %V to %V)\n"), expld.dot, nextdot); | |
252b5132 RH |
790 | else |
791 | { | |
e9ee469a AM |
792 | expld.dot = nextdot; |
793 | *expld.dotp = nextdot; | |
252b5132 RH |
794 | } |
795 | } | |
796 | } | |
8b3d8fa8 | 797 | else |
e9ee469a | 798 | memset (&expld.result, 0, sizeof (expld.result)); |
252b5132 RH |
799 | } |
800 | else | |
801 | { | |
e9ee469a | 802 | struct bfd_link_hash_entry *h = NULL; |
252b5132 | 803 | |
e9ee469a AM |
804 | if (tree->type.node_class == etree_provide) |
805 | { | |
252b5132 | 806 | h = bfd_link_hash_lookup (link_info.hash, tree->assign.dst, |
e9ee469a AM |
807 | FALSE, FALSE, TRUE); |
808 | if (h == NULL | |
809 | || (h->type != bfd_link_hash_new | |
810 | && h->type != bfd_link_hash_undefined | |
811 | && h->type != bfd_link_hash_common)) | |
812 | { | |
813 | /* Do nothing. The symbol was never referenced, or was | |
814 | defined by some object. */ | |
815 | break; | |
816 | } | |
817 | } | |
818 | ||
819 | exp_fold_tree_1 (tree->assign.src); | |
e759c116 AM |
820 | if (expld.result.valid_p |
821 | || (expld.phase == lang_first_phase_enum | |
822 | && !expld.uses_defined)) | |
e9ee469a | 823 | { |
1579bae1 | 824 | if (h == NULL) |
67010b46 | 825 | { |
e9ee469a AM |
826 | h = bfd_link_hash_lookup (link_info.hash, tree->assign.dst, |
827 | TRUE, FALSE, TRUE); | |
828 | if (h == NULL) | |
67010b46 NC |
829 | einfo (_("%P%F:%s: hash creation failed\n"), |
830 | tree->assign.dst); | |
831 | } | |
e9ee469a AM |
832 | |
833 | /* FIXME: Should we worry if the symbol is already | |
834 | defined? */ | |
835 | lang_update_definedness (tree->assign.dst, h); | |
836 | h->type = bfd_link_hash_defined; | |
837 | h->u.def.value = expld.result.value; | |
7542af2a AM |
838 | if (expld.result.section == NULL) |
839 | expld.result.section = expld.section; | |
e9ee469a AM |
840 | h->u.def.section = expld.result.section; |
841 | if (tree->type.node_class == etree_provide) | |
842 | tree->type.node_class = etree_provided; | |
1338dd10 PB |
843 | |
844 | /* Copy the symbol type if this is a simple assignment of | |
845 | one symbol to annother. */ | |
846 | if (tree->assign.src->type.node_class == etree_name) | |
847 | { | |
848 | struct bfd_link_hash_entry *hsrc; | |
849 | ||
850 | hsrc = bfd_link_hash_lookup (link_info.hash, | |
851 | tree->assign.src->name.name, | |
852 | FALSE, FALSE, TRUE); | |
853 | if (hsrc) | |
854 | bfd_copy_link_hash_symbol_type (link_info.output_bfd, h, | |
855 | hsrc); | |
856 | } | |
252b5132 | 857 | } |
e092cb30 AM |
858 | else if (expld.phase == lang_final_phase_enum) |
859 | { | |
860 | h = bfd_link_hash_lookup (link_info.hash, tree->assign.dst, | |
861 | FALSE, FALSE, TRUE); | |
862 | if (h != NULL | |
863 | && h->type == bfd_link_hash_new) | |
864 | h->type = bfd_link_hash_undefined; | |
865 | } | |
252b5132 RH |
866 | } |
867 | break; | |
868 | ||
869 | case etree_name: | |
e9ee469a | 870 | fold_name (tree); |
252b5132 RH |
871 | break; |
872 | ||
873 | default: | |
874 | FAIL (); | |
e9ee469a | 875 | memset (&expld.result, 0, sizeof (expld.result)); |
252b5132 RH |
876 | break; |
877 | } | |
252b5132 RH |
878 | } |
879 | ||
e9ee469a AM |
880 | void |
881 | exp_fold_tree (etree_type *tree, asection *current_section, bfd_vma *dotp) | |
75ff4589 | 882 | { |
e9ee469a AM |
883 | expld.dot = *dotp; |
884 | expld.dotp = dotp; | |
885 | expld.section = current_section; | |
e759c116 | 886 | expld.uses_defined = FALSE; |
e9ee469a | 887 | exp_fold_tree_1 (tree); |
75ff4589 L |
888 | } |
889 | ||
e759c116 | 890 | void |
e9ee469a | 891 | exp_fold_tree_no_dot (etree_type *tree) |
252b5132 | 892 | { |
e9ee469a AM |
893 | expld.dot = 0; |
894 | expld.dotp = NULL; | |
895 | expld.section = bfd_abs_section_ptr; | |
e759c116 | 896 | expld.uses_defined = FALSE; |
e9ee469a | 897 | exp_fold_tree_1 (tree); |
252b5132 RH |
898 | } |
899 | ||
900 | etree_type * | |
1579bae1 | 901 | exp_binop (int code, etree_type *lhs, etree_type *rhs) |
252b5132 | 902 | { |
d3ce72d0 | 903 | etree_type value, *new_e; |
252b5132 RH |
904 | |
905 | value.type.node_code = code; | |
f856040a | 906 | value.type.lineno = lhs->type.lineno; |
252b5132 RH |
907 | value.binary.lhs = lhs; |
908 | value.binary.rhs = rhs; | |
909 | value.type.node_class = etree_binary; | |
e9ee469a AM |
910 | exp_fold_tree_no_dot (&value); |
911 | if (expld.result.valid_p) | |
912 | return exp_intop (expld.result.value); | |
913 | ||
d3ce72d0 NC |
914 | new_e = (etree_type *) stat_alloc (sizeof (new_e->binary)); |
915 | memcpy (new_e, &value, sizeof (new_e->binary)); | |
916 | return new_e; | |
252b5132 RH |
917 | } |
918 | ||
919 | etree_type * | |
1579bae1 | 920 | exp_trinop (int code, etree_type *cond, etree_type *lhs, etree_type *rhs) |
252b5132 | 921 | { |
d3ce72d0 | 922 | etree_type value, *new_e; |
e9ee469a | 923 | |
252b5132 | 924 | value.type.node_code = code; |
f856040a | 925 | value.type.lineno = lhs->type.lineno; |
252b5132 RH |
926 | value.trinary.lhs = lhs; |
927 | value.trinary.cond = cond; | |
928 | value.trinary.rhs = rhs; | |
929 | value.type.node_class = etree_trinary; | |
e9ee469a AM |
930 | exp_fold_tree_no_dot (&value); |
931 | if (expld.result.valid_p) | |
932 | return exp_intop (expld.result.value); | |
c7d701b0 | 933 | |
d3ce72d0 NC |
934 | new_e = (etree_type *) stat_alloc (sizeof (new_e->trinary)); |
935 | memcpy (new_e, &value, sizeof (new_e->trinary)); | |
936 | return new_e; | |
252b5132 RH |
937 | } |
938 | ||
252b5132 | 939 | etree_type * |
1579bae1 | 940 | exp_unop (int code, etree_type *child) |
252b5132 | 941 | { |
d3ce72d0 | 942 | etree_type value, *new_e; |
252b5132 | 943 | |
252b5132 | 944 | value.unary.type.node_code = code; |
f856040a | 945 | value.unary.type.lineno = child->type.lineno; |
252b5132 RH |
946 | value.unary.child = child; |
947 | value.unary.type.node_class = etree_unary; | |
e9ee469a AM |
948 | exp_fold_tree_no_dot (&value); |
949 | if (expld.result.valid_p) | |
950 | return exp_intop (expld.result.value); | |
c7d701b0 | 951 | |
d3ce72d0 NC |
952 | new_e = (etree_type *) stat_alloc (sizeof (new_e->unary)); |
953 | memcpy (new_e, &value, sizeof (new_e->unary)); | |
954 | return new_e; | |
252b5132 RH |
955 | } |
956 | ||
252b5132 | 957 | etree_type * |
1579bae1 | 958 | exp_nameop (int code, const char *name) |
252b5132 | 959 | { |
d3ce72d0 | 960 | etree_type value, *new_e; |
e9ee469a | 961 | |
252b5132 | 962 | value.name.type.node_code = code; |
f856040a | 963 | value.name.type.lineno = lineno; |
252b5132 RH |
964 | value.name.name = name; |
965 | value.name.type.node_class = etree_name; | |
966 | ||
e9ee469a AM |
967 | exp_fold_tree_no_dot (&value); |
968 | if (expld.result.valid_p) | |
969 | return exp_intop (expld.result.value); | |
c7d701b0 | 970 | |
d3ce72d0 NC |
971 | new_e = (etree_type *) stat_alloc (sizeof (new_e->name)); |
972 | memcpy (new_e, &value, sizeof (new_e->name)); | |
973 | return new_e; | |
252b5132 RH |
974 | |
975 | } | |
976 | ||
2e57b2af AM |
977 | static etree_type * |
978 | exp_assop (const char *dst, | |
979 | etree_type *src, | |
980 | enum node_tree_enum class, | |
981 | bfd_boolean hidden) | |
252b5132 RH |
982 | { |
983 | etree_type *n; | |
984 | ||
1e9cc1c2 | 985 | n = (etree_type *) stat_alloc (sizeof (n->assign)); |
252b5132 | 986 | n->assign.type.node_code = '='; |
f856040a | 987 | n->assign.type.lineno = src->type.lineno; |
2e57b2af | 988 | n->assign.type.node_class = class; |
252b5132 RH |
989 | n->assign.src = src; |
990 | n->assign.dst = dst; | |
7af8e998 | 991 | n->assign.hidden = hidden; |
252b5132 RH |
992 | return n; |
993 | } | |
994 | ||
2e57b2af AM |
995 | etree_type * |
996 | exp_assign (const char *dst, etree_type *src) | |
997 | { | |
998 | return exp_assop (dst, src, etree_assign, FALSE); | |
999 | } | |
1000 | ||
1001 | etree_type * | |
1002 | exp_defsym (const char *dst, etree_type *src) | |
1003 | { | |
1004 | return exp_assop (dst, src, etree_assign, TRUE); | |
1005 | } | |
1006 | ||
1007 | /* Handle PROVIDE. */ | |
1008 | ||
1009 | etree_type * | |
1010 | exp_provide (const char *dst, etree_type *src, bfd_boolean hidden) | |
1011 | { | |
1012 | return exp_assop (dst, src, etree_provide, hidden); | |
1013 | } | |
1014 | ||
252b5132 RH |
1015 | /* Handle ASSERT. */ |
1016 | ||
1017 | etree_type * | |
1579bae1 | 1018 | exp_assert (etree_type *exp, const char *message) |
252b5132 RH |
1019 | { |
1020 | etree_type *n; | |
1021 | ||
1e9cc1c2 | 1022 | n = (etree_type *) stat_alloc (sizeof (n->assert_s)); |
252b5132 | 1023 | n->assert_s.type.node_code = '!'; |
f856040a | 1024 | n->assert_s.type.lineno = exp->type.lineno; |
252b5132 RH |
1025 | n->assert_s.type.node_class = etree_assert; |
1026 | n->assert_s.child = exp; | |
1027 | n->assert_s.message = message; | |
1028 | return n; | |
1029 | } | |
1030 | ||
4de2d33d | 1031 | void |
1579bae1 | 1032 | exp_print_tree (etree_type *tree) |
252b5132 | 1033 | { |
ae78bbeb AM |
1034 | bfd_boolean function_like; |
1035 | ||
c7d701b0 NC |
1036 | if (config.map_file == NULL) |
1037 | config.map_file = stderr; | |
b7a26f91 | 1038 | |
c7d701b0 NC |
1039 | if (tree == NULL) |
1040 | { | |
1041 | minfo ("NULL TREE\n"); | |
1042 | return; | |
1043 | } | |
b7a26f91 | 1044 | |
8c95a62e KH |
1045 | switch (tree->type.node_class) |
1046 | { | |
1047 | case etree_value: | |
1048 | minfo ("0x%v", tree->value.value); | |
1049 | return; | |
1050 | case etree_rel: | |
1051 | if (tree->rel.section->owner != NULL) | |
1052 | minfo ("%B:", tree->rel.section->owner); | |
1053 | minfo ("%s+0x%v", tree->rel.section->name, tree->rel.value); | |
1054 | return; | |
1055 | case etree_assign: | |
ae78bbeb | 1056 | fputs (tree->assign.dst, config.map_file); |
b34976b6 | 1057 | exp_print_token (tree->type.node_code, TRUE); |
8c95a62e KH |
1058 | exp_print_tree (tree->assign.src); |
1059 | break; | |
1060 | case etree_provide: | |
b46a87b1 | 1061 | case etree_provided: |
8c95a62e KH |
1062 | fprintf (config.map_file, "PROVIDE (%s, ", tree->assign.dst); |
1063 | exp_print_tree (tree->assign.src); | |
ae78bbeb | 1064 | fputc (')', config.map_file); |
8c95a62e KH |
1065 | break; |
1066 | case etree_binary: | |
ae78bbeb AM |
1067 | function_like = FALSE; |
1068 | switch (tree->type.node_code) | |
1069 | { | |
1070 | case MAX_K: | |
1071 | case MIN_K: | |
1072 | case ALIGN_K: | |
1073 | case DATA_SEGMENT_ALIGN: | |
1074 | case DATA_SEGMENT_RELRO_END: | |
1075 | function_like = TRUE; | |
1076 | } | |
1077 | if (function_like) | |
1078 | { | |
1079 | exp_print_token (tree->type.node_code, FALSE); | |
1080 | fputc (' ', config.map_file); | |
1081 | } | |
1082 | fputc ('(', config.map_file); | |
8c95a62e | 1083 | exp_print_tree (tree->binary.lhs); |
ae78bbeb AM |
1084 | if (function_like) |
1085 | fprintf (config.map_file, ", "); | |
1086 | else | |
1087 | exp_print_token (tree->type.node_code, TRUE); | |
8c95a62e | 1088 | exp_print_tree (tree->binary.rhs); |
ae78bbeb | 1089 | fputc (')', config.map_file); |
8c95a62e KH |
1090 | break; |
1091 | case etree_trinary: | |
1092 | exp_print_tree (tree->trinary.cond); | |
ae78bbeb | 1093 | fputc ('?', config.map_file); |
8c95a62e | 1094 | exp_print_tree (tree->trinary.lhs); |
ae78bbeb | 1095 | fputc (':', config.map_file); |
8c95a62e KH |
1096 | exp_print_tree (tree->trinary.rhs); |
1097 | break; | |
1098 | case etree_unary: | |
b34976b6 | 1099 | exp_print_token (tree->unary.type.node_code, FALSE); |
8c95a62e KH |
1100 | if (tree->unary.child) |
1101 | { | |
7b17f854 | 1102 | fprintf (config.map_file, " ("); |
8c95a62e | 1103 | exp_print_tree (tree->unary.child); |
ae78bbeb | 1104 | fputc (')', config.map_file); |
8c95a62e KH |
1105 | } |
1106 | break; | |
1107 | ||
1108 | case etree_assert: | |
1109 | fprintf (config.map_file, "ASSERT ("); | |
1110 | exp_print_tree (tree->assert_s.child); | |
1111 | fprintf (config.map_file, ", %s)", tree->assert_s.message); | |
1112 | break; | |
1113 | ||
8c95a62e KH |
1114 | case etree_name: |
1115 | if (tree->type.node_code == NAME) | |
ae78bbeb | 1116 | fputs (tree->name.name, config.map_file); |
8c95a62e KH |
1117 | else |
1118 | { | |
b34976b6 | 1119 | exp_print_token (tree->type.node_code, FALSE); |
8c95a62e | 1120 | if (tree->name.name) |
7b17f854 | 1121 | fprintf (config.map_file, " (%s)", tree->name.name); |
8c95a62e KH |
1122 | } |
1123 | break; | |
1124 | default: | |
1125 | FAIL (); | |
1126 | break; | |
252b5132 | 1127 | } |
252b5132 RH |
1128 | } |
1129 | ||
1130 | bfd_vma | |
e9ee469a | 1131 | exp_get_vma (etree_type *tree, bfd_vma def, char *name) |
252b5132 | 1132 | { |
252b5132 RH |
1133 | if (tree != NULL) |
1134 | { | |
e9ee469a AM |
1135 | exp_fold_tree_no_dot (tree); |
1136 | if (expld.result.valid_p) | |
1137 | return expld.result.value; | |
1138 | else if (name != NULL && expld.phase != lang_mark_phase_enum) | |
c58dea77 | 1139 | einfo (_("%F%S: nonconstant expression for %s\n"), name); |
252b5132 | 1140 | } |
e9ee469a | 1141 | return def; |
252b5132 RH |
1142 | } |
1143 | ||
4de2d33d | 1144 | int |
e9ee469a | 1145 | exp_get_value_int (etree_type *tree, int def, char *name) |
252b5132 | 1146 | { |
e9ee469a | 1147 | return exp_get_vma (tree, def, name); |
252b5132 RH |
1148 | } |
1149 | ||
2c382fb6 | 1150 | fill_type * |
e9ee469a | 1151 | exp_get_fill (etree_type *tree, fill_type *def, char *name) |
2c382fb6 AM |
1152 | { |
1153 | fill_type *fill; | |
2c382fb6 AM |
1154 | size_t len; |
1155 | unsigned int val; | |
1156 | ||
1157 | if (tree == NULL) | |
1158 | return def; | |
1159 | ||
e9ee469a AM |
1160 | exp_fold_tree_no_dot (tree); |
1161 | if (!expld.result.valid_p) | |
1162 | { | |
1163 | if (name != NULL && expld.phase != lang_mark_phase_enum) | |
c58dea77 | 1164 | einfo (_("%F%S: nonconstant expression for %s\n"), name); |
e9ee469a AM |
1165 | return def; |
1166 | } | |
2c382fb6 | 1167 | |
e9ee469a | 1168 | if (expld.result.str != NULL && (len = strlen (expld.result.str)) != 0) |
2c382fb6 AM |
1169 | { |
1170 | unsigned char *dst; | |
1171 | unsigned char *s; | |
1e9cc1c2 | 1172 | fill = (fill_type *) xmalloc ((len + 1) / 2 + sizeof (*fill) - 1); |
2c382fb6 AM |
1173 | fill->size = (len + 1) / 2; |
1174 | dst = fill->data; | |
e9ee469a | 1175 | s = (unsigned char *) expld.result.str; |
2c382fb6 AM |
1176 | val = 0; |
1177 | do | |
1178 | { | |
1179 | unsigned int digit; | |
1180 | ||
1181 | digit = *s++ - '0'; | |
1182 | if (digit > 9) | |
1183 | digit = (digit - 'A' + '0' + 10) & 0xf; | |
1184 | val <<= 4; | |
1185 | val += digit; | |
1186 | --len; | |
1187 | if ((len & 1) == 0) | |
1188 | { | |
1189 | *dst++ = val; | |
1190 | val = 0; | |
1191 | } | |
1192 | } | |
1193 | while (len != 0); | |
1194 | } | |
1195 | else | |
1196 | { | |
1e9cc1c2 | 1197 | fill = (fill_type *) xmalloc (4 + sizeof (*fill) - 1); |
e9ee469a | 1198 | val = expld.result.value; |
2c382fb6 AM |
1199 | fill->data[0] = (val >> 24) & 0xff; |
1200 | fill->data[1] = (val >> 16) & 0xff; | |
1201 | fill->data[2] = (val >> 8) & 0xff; | |
1202 | fill->data[3] = (val >> 0) & 0xff; | |
1203 | fill->size = 4; | |
1204 | } | |
1205 | return fill; | |
1206 | } | |
1207 | ||
252b5132 | 1208 | bfd_vma |
e9ee469a | 1209 | exp_get_abs_int (etree_type *tree, int def, char *name) |
252b5132 | 1210 | { |
e9ee469a AM |
1211 | if (tree != NULL) |
1212 | { | |
1213 | exp_fold_tree_no_dot (tree); | |
c7d701b0 | 1214 | |
e9ee469a AM |
1215 | if (expld.result.valid_p) |
1216 | { | |
7542af2a AM |
1217 | if (expld.result.section != NULL) |
1218 | expld.result.value += expld.result.section->vma; | |
e9ee469a AM |
1219 | return expld.result.value; |
1220 | } | |
1221 | else if (name != NULL && expld.phase != lang_mark_phase_enum) | |
f856040a L |
1222 | { |
1223 | lineno = tree->type.lineno; | |
1224 | einfo (_("%F%S: nonconstant expression for %s\n"), name); | |
1225 | } | |
e9ee469a AM |
1226 | } |
1227 | return def; | |
252b5132 | 1228 | } |
c553bb91 | 1229 | |
e5caa5e0 AM |
1230 | static bfd_vma |
1231 | align_n (bfd_vma value, bfd_vma align) | |
c553bb91 AM |
1232 | { |
1233 | if (align <= 1) | |
1234 | return value; | |
1235 | ||
1236 | value = (value + align - 1) / align; | |
1237 | return value * align; | |
1238 | } |