Commit | Line | Data |
---|---|---|
fecd2382 | 1 | /* write.c - emit .o file |
5767cfb7 ILT |
2 | Copyright (C) 1986, 87, 90, 91, 92, 93, 94, 1995 |
3 | Free Software Foundation, Inc. | |
6efd877d | 4 | |
a39116f1 | 5 | This file is part of GAS, the GNU Assembler. |
6efd877d | 6 | |
a39116f1 RP |
7 | GAS is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
6efd877d | 11 | |
a39116f1 RP |
12 | GAS is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
6efd877d | 16 | |
a39116f1 RP |
17 | You should have received a copy of the GNU General Public License |
18 | along with GAS; see the file COPYING. If not, write to | |
a2a5a4fa | 19 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
fecd2382 | 20 | |
c593cf41 | 21 | /* This thing should be set up to do byteordering correctly. But... */ |
fecd2382 RP |
22 | |
23 | #include "as.h" | |
fecd2382 RP |
24 | #include "subsegs.h" |
25 | #include "obstack.h" | |
26 | #include "output-file.h" | |
27 | ||
d9d6f094 KR |
28 | /* This looks like a good idea. Let's try turning it on always, for now. */ |
29 | #undef BFD_FAST_SECTION_FILL | |
30 | #define BFD_FAST_SECTION_FILL | |
31 | ||
43ca9aa6 KR |
32 | /* The NOP_OPCODE is for the alignment fill value. Fill it with a nop |
33 | instruction so that the disassembler does not choke on it. */ | |
6d5460ab RP |
34 | #ifndef NOP_OPCODE |
35 | #define NOP_OPCODE 0x00 | |
36 | #endif | |
37 | ||
f5c32424 KR |
38 | #ifndef TC_ADJUST_RELOC_COUNT |
39 | #define TC_ADJUST_RELOC_COUNT(FIXP,COUNT) | |
40 | #endif | |
41 | ||
335d35c8 JL |
42 | #ifndef TC_FORCE_RELOCATION |
43 | #define TC_FORCE_RELOCATION(FIXP) 0 | |
44 | #endif | |
45 | ||
43ca9aa6 KR |
46 | #ifndef WORKING_DOT_WORD |
47 | extern CONST int md_short_jump_size; | |
48 | extern CONST int md_long_jump_size; | |
49 | #endif | |
50 | ||
1cf7548e | 51 | int symbol_table_frozen; |
a55774a1 | 52 | void print_fixup PARAMS ((fixS *)); |
1cf7548e | 53 | |
1b96bdce | 54 | #ifdef BFD_ASSEMBLER |
a55774a1 KR |
55 | static void renumber_sections PARAMS ((bfd *, asection *, PTR)); |
56 | ||
1b96bdce ILT |
57 | /* We generally attach relocs to frag chains. However, after we have |
58 | chained these all together into a segment, any relocs we add after | |
59 | that must be attached to a segment. This will include relocs added | |
60 | in md_estimate_size_for_relax, for example. */ | |
61 | static int frags_chained = 0; | |
62 | #endif | |
63 | ||
43ca9aa6 KR |
64 | #ifndef BFD_ASSEMBLER |
65 | ||
45432836 | 66 | #ifndef MANY_SEGMENTS |
09952cd9 KR |
67 | struct frag *text_frag_root; |
68 | struct frag *data_frag_root; | |
69 | struct frag *bss_frag_root; | |
fecd2382 | 70 | |
09952cd9 KR |
71 | struct frag *text_last_frag; /* Last frag in segment. */ |
72 | struct frag *data_last_frag; /* Last frag in segment. */ | |
65bfcf2e | 73 | static struct frag *bss_last_frag; /* Last frag in segment. */ |
45432836 | 74 | #endif |
fecd2382 | 75 | |
1cf7548e | 76 | #ifndef BFD |
fecd2382 | 77 | static object_headers headers; |
80aab579 ILT |
78 | #endif |
79 | ||
80 | long string_byte_count; | |
fecd2382 RP |
81 | char *next_object_file_charP; /* Tracks object file bytes. */ |
82 | ||
3eb802b5 | 83 | #ifndef OBJ_VMS |
fecd2382 | 84 | int magic_number_for_object_file = DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE; |
3eb802b5 | 85 | #endif |
fecd2382 | 86 | |
43ca9aa6 KR |
87 | #endif /* BFD_ASSEMBLER */ |
88 | ||
7a0405b9 | 89 | #ifdef BFD_ASSEMBLER |
b23f6743 | 90 | static fixS *fix_new_internal PARAMS ((fragS *, int where, int size, |
5ac34ac3 ILT |
91 | symbolS *add, symbolS *sub, |
92 | offsetT offset, int pcrel, | |
7a0405b9 | 93 | bfd_reloc_code_real_type r_type)); |
5ac34ac3 | 94 | #else |
b23f6743 | 95 | static fixS *fix_new_internal PARAMS ((fragS *, int where, int size, |
7a0405b9 ILT |
96 | symbolS *add, symbolS *sub, |
97 | offsetT offset, int pcrel, | |
98 | int r_type)); | |
5ac34ac3 | 99 | #endif |
3f81f3cf | 100 | #if defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS)) |
6efd877d | 101 | static long fixup_segment PARAMS ((fixS * fixP, segT this_segment_type)); |
80aab579 | 102 | #endif |
d5364748 | 103 | static relax_addressT relax_align PARAMS ((relax_addressT addr, int align)); |
fecd2382 RP |
104 | |
105 | /* | |
106 | * fix_new() | |
107 | * | |
108 | * Create a fixS in obstack 'notes'. | |
109 | */ | |
5ac34ac3 ILT |
110 | static fixS * |
111 | fix_new_internal (frag, where, size, add_symbol, sub_symbol, offset, pcrel, | |
112 | r_type) | |
6efd877d KR |
113 | fragS *frag; /* Which frag? */ |
114 | int where; /* Where in that frag? */ | |
b23f6743 | 115 | int size; /* 1, 2, or 4 usually. */ |
6efd877d | 116 | symbolS *add_symbol; /* X_add_symbol. */ |
5ac34ac3 | 117 | symbolS *sub_symbol; /* X_op_symbol. */ |
d5364748 | 118 | offsetT offset; /* X_add_number. */ |
6efd877d | 119 | int pcrel; /* TRUE if PC-relative relocation. */ |
43ca9aa6 KR |
120 | #ifdef BFD_ASSEMBLER |
121 | bfd_reloc_code_real_type r_type; /* Relocation type */ | |
122 | #else | |
6efd877d | 123 | int r_type; /* Relocation type */ |
43ca9aa6 | 124 | #endif |
fecd2382 | 125 | { |
6efd877d KR |
126 | fixS *fixP; |
127 | ||
128 | fixP = (fixS *) obstack_alloc (¬es, sizeof (fixS)); | |
129 | ||
130 | fixP->fx_frag = frag; | |
131 | fixP->fx_where = where; | |
132 | fixP->fx_size = size; | |
133 | fixP->fx_addsy = add_symbol; | |
134 | fixP->fx_subsy = sub_symbol; | |
135 | fixP->fx_offset = offset; | |
136 | fixP->fx_pcrel = pcrel; | |
a55774a1 | 137 | fixP->fx_plt = 0; |
43ca9aa6 | 138 | #if defined(NEED_FX_R_TYPE) || defined (BFD_ASSEMBLER) |
6efd877d | 139 | fixP->fx_r_type = r_type; |
c593cf41 | 140 | #endif |
6efd877d KR |
141 | fixP->fx_im_disp = 0; |
142 | fixP->fx_pcrel_adjust = 0; | |
6efd877d | 143 | fixP->fx_bit_fixP = 0; |
43ca9aa6 | 144 | fixP->fx_addnumber = 0; |
20b39b6f | 145 | fixP->tc_fix_data = NULL; |
a58374d7 | 146 | fixP->fx_tcbit = 0; |
98c6bbbe | 147 | fixP->fx_done = 0; |
43ca9aa6 | 148 | |
b04bc423 | 149 | #if defined (TC_I960) || defined (TC_NS32K) |
43ca9aa6 KR |
150 | fixP->fx_bsr = 0; |
151 | #endif | |
43ca9aa6 | 152 | |
84fa9814 KR |
153 | as_where (&fixP->fx_file, &fixP->fx_line); |
154 | ||
43ca9aa6 KR |
155 | /* Usually, we want relocs sorted numerically, but while |
156 | comparing to older versions of gas that have relocs | |
157 | reverse sorted, it is convenient to have this compile | |
158 | time option. xoxorich. */ | |
159 | ||
160 | { | |
6efd877d | 161 | |
43ca9aa6 | 162 | #ifdef BFD_ASSEMBLER |
1b96bdce ILT |
163 | fixS **seg_fix_rootP = (frags_chained |
164 | ? &seg_info (now_seg)->fix_root | |
165 | : &frchain_now->fix_root); | |
166 | fixS **seg_fix_tailP = (frags_chained | |
167 | ? &seg_info (now_seg)->fix_tail | |
168 | : &frchain_now->fix_tail); | |
43ca9aa6 | 169 | #endif |
09952cd9 | 170 | |
f6e504fe | 171 | #ifdef REVERSE_SORT_RELOCS |
6efd877d | 172 | |
43ca9aa6 KR |
173 | fixP->fx_next = *seg_fix_rootP; |
174 | *seg_fix_rootP = fixP; | |
6efd877d | 175 | |
f6e504fe | 176 | #else /* REVERSE_SORT_RELOCS */ |
6efd877d | 177 | |
43ca9aa6 | 178 | fixP->fx_next = NULL; |
6efd877d | 179 | |
43ca9aa6 KR |
180 | if (*seg_fix_tailP) |
181 | (*seg_fix_tailP)->fx_next = fixP; | |
182 | else | |
183 | *seg_fix_rootP = fixP; | |
184 | *seg_fix_tailP = fixP; | |
6efd877d | 185 | |
f6e504fe | 186 | #endif /* REVERSE_SORT_RELOCS */ |
6efd877d | 187 | |
43ca9aa6 KR |
188 | } |
189 | ||
190 | return fixP; | |
191 | } | |
192 | ||
5ac34ac3 ILT |
193 | /* Create a fixup relative to a symbol (plus a constant). */ |
194 | ||
195 | fixS * | |
196 | fix_new (frag, where, size, add_symbol, offset, pcrel, r_type) | |
197 | fragS *frag; /* Which frag? */ | |
198 | int where; /* Where in that frag? */ | |
f7da4a99 | 199 | int size; /* 1, 2, or 4 usually. */ |
5ac34ac3 ILT |
200 | symbolS *add_symbol; /* X_add_symbol. */ |
201 | offsetT offset; /* X_add_number. */ | |
202 | int pcrel; /* TRUE if PC-relative relocation. */ | |
203 | #ifdef BFD_ASSEMBLER | |
204 | bfd_reloc_code_real_type r_type; /* Relocation type */ | |
205 | #else | |
206 | int r_type; /* Relocation type */ | |
207 | #endif | |
208 | { | |
209 | return fix_new_internal (frag, where, size, add_symbol, | |
210 | (symbolS *) NULL, offset, pcrel, r_type); | |
211 | } | |
212 | ||
213 | /* Create a fixup for an expression. Currently we only support fixups | |
214 | for difference expressions. That is itself more than most object | |
215 | file formats support anyhow. */ | |
216 | ||
217 | fixS * | |
218 | fix_new_exp (frag, where, size, exp, pcrel, r_type) | |
219 | fragS *frag; /* Which frag? */ | |
220 | int where; /* Where in that frag? */ | |
f7da4a99 | 221 | int size; /* 1, 2, or 4 usually. */ |
5ac34ac3 ILT |
222 | expressionS *exp; /* Expression. */ |
223 | int pcrel; /* TRUE if PC-relative relocation. */ | |
224 | #ifdef BFD_ASSEMBLER | |
225 | bfd_reloc_code_real_type r_type; /* Relocation type */ | |
226 | #else | |
227 | int r_type; /* Relocation type */ | |
228 | #endif | |
229 | { | |
230 | symbolS *add = NULL; | |
231 | symbolS *sub = NULL; | |
232 | offsetT off = 0; | |
233 | ||
234 | switch (exp->X_op) | |
235 | { | |
236 | case O_absent: | |
237 | break; | |
238 | ||
4acf8c78 KR |
239 | case O_add: |
240 | /* This comes up when _GLOBAL_OFFSET_TABLE_+(.-L0) is read, if | |
241 | the difference expression cannot immediately be reduced. */ | |
242 | { | |
243 | extern symbolS *make_expr_symbol (); | |
244 | symbolS *stmp = make_expr_symbol (exp); | |
245 | exp->X_op = O_symbol; | |
246 | exp->X_op_symbol = 0; | |
247 | exp->X_add_symbol = stmp; | |
248 | exp->X_add_number = 0; | |
249 | return fix_new_exp (frag, where, size, exp, pcrel, r_type); | |
250 | } | |
251 | ||
b23f6743 KR |
252 | case O_uminus: |
253 | sub = exp->X_add_symbol; | |
254 | off = exp->X_add_number; | |
255 | break; | |
256 | ||
5ac34ac3 ILT |
257 | case O_subtract: |
258 | sub = exp->X_op_symbol; | |
259 | /* Fall through. */ | |
260 | case O_symbol: | |
261 | add = exp->X_add_symbol; | |
262 | /* Fall through. */ | |
263 | case O_constant: | |
264 | off = exp->X_add_number; | |
265 | break; | |
266 | ||
267 | default: | |
268 | as_bad ("expression too complex for fixup"); | |
269 | } | |
270 | ||
271 | return fix_new_internal (frag, where, size, add, sub, off, | |
272 | pcrel, r_type); | |
273 | } | |
274 | ||
43ca9aa6 KR |
275 | /* Append a string onto another string, bumping the pointer along. */ |
276 | void | |
277 | append (charPP, fromP, length) | |
278 | char **charPP; | |
279 | char *fromP; | |
280 | unsigned long length; | |
281 | { | |
282 | /* Don't trust memcpy() of 0 chars. */ | |
283 | if (length == 0) | |
284 | return; | |
285 | ||
80aab579 | 286 | memcpy (*charPP, fromP, length); |
43ca9aa6 KR |
287 | *charPP += length; |
288 | } | |
289 | ||
290 | #ifndef BFD_ASSEMBLER | |
291 | int section_alignment[SEG_MAXIMUM_ORDINAL]; | |
292 | #endif | |
293 | ||
294 | /* | |
295 | * This routine records the largest alignment seen for each segment. | |
296 | * If the beginning of the segment is aligned on the worst-case | |
297 | * boundary, all of the other alignments within it will work. At | |
298 | * least one object format really uses this info. | |
299 | */ | |
300 | void | |
301 | record_alignment (seg, align) | |
302 | /* Segment to which alignment pertains */ | |
303 | segT seg; | |
304 | /* Alignment, as a power of 2 (e.g., 1 => 2-byte boundary, 2 => 4-byte | |
305 | boundary, etc.) */ | |
306 | int align; | |
307 | { | |
5c800455 ILT |
308 | if (seg == absolute_section) |
309 | return; | |
43ca9aa6 KR |
310 | #ifdef BFD_ASSEMBLER |
311 | if (align > bfd_get_section_alignment (stdoutput, seg)) | |
312 | bfd_set_section_alignment (stdoutput, seg, align); | |
313 | #else | |
314 | if (align > section_alignment[(int) seg]) | |
315 | section_alignment[(int) seg] = align; | |
316 | #endif | |
317 | } | |
318 | ||
a55774a1 KR |
319 | #ifdef BFD_ASSEMBLER |
320 | ||
321 | /* Reset the section indices after removing the gas created sections. */ | |
322 | ||
323 | static void | |
324 | renumber_sections (abfd, sec, countparg) | |
325 | bfd *abfd; | |
326 | asection *sec; | |
327 | PTR countparg; | |
328 | { | |
329 | int *countp = (int *) countparg; | |
330 | ||
331 | sec->index = *countp; | |
332 | ++*countp; | |
333 | } | |
334 | ||
335 | #endif /* defined (BFD_ASSEMBLER) */ | |
336 | ||
43ca9aa6 KR |
337 | #if defined (BFD_ASSEMBLER) || ! defined (BFD) |
338 | ||
339 | static fragS * | |
340 | chain_frchains_together_1 (section, frchp) | |
341 | segT section; | |
342 | struct frchain *frchp; | |
343 | { | |
344 | fragS dummy, *prev_frag = &dummy; | |
b04bc423 | 345 | #ifdef BFD_ASSEMBLER |
3f81f3cf | 346 | fixS fix_dummy, *prev_fix = &fix_dummy; |
b04bc423 | 347 | #endif |
262b22cd | 348 | |
43ca9aa6 KR |
349 | for (; frchp && frchp->frch_seg == section; frchp = frchp->frch_next) |
350 | { | |
351 | prev_frag->fr_next = frchp->frch_root; | |
352 | prev_frag = frchp->frch_last; | |
3a0e38ee | 353 | #ifdef BFD_ASSEMBLER |
262b22cd ILT |
354 | if (frchp->fix_root != (fixS *) NULL) |
355 | { | |
356 | if (seg_info (section)->fix_root == (fixS *) NULL) | |
357 | seg_info (section)->fix_root = frchp->fix_root; | |
358 | prev_fix->fx_next = frchp->fix_root; | |
1b96bdce | 359 | seg_info (section)->fix_tail = frchp->fix_tail; |
262b22cd ILT |
360 | prev_fix = frchp->fix_tail; |
361 | } | |
3a0e38ee | 362 | #endif |
43ca9aa6 KR |
363 | } |
364 | prev_frag->fr_next = 0; | |
365 | return prev_frag; | |
366 | } | |
367 | ||
368 | #endif | |
369 | ||
370 | #ifdef BFD_ASSEMBLER | |
371 | ||
372 | static void | |
373 | chain_frchains_together (abfd, section, xxx) | |
374 | bfd *abfd; /* unused */ | |
375 | segT section; | |
a58374d7 | 376 | PTR xxx; /* unused */ |
43ca9aa6 | 377 | { |
f2f7d044 ILT |
378 | segment_info_type *info; |
379 | ||
380 | /* BFD may have introduced its own sections without using | |
381 | subseg_new, so it is possible that seg_info is NULL. */ | |
382 | info = seg_info (section); | |
383 | if (info != (segment_info_type *) NULL) | |
0f894895 JL |
384 | info->frchainP->frch_last |
385 | = chain_frchains_together_1 (section, info->frchainP); | |
1b96bdce ILT |
386 | |
387 | /* Now that we've chained the frags together, we must add new fixups | |
388 | to the segment, not to the frag chain. */ | |
389 | frags_chained = 1; | |
43ca9aa6 KR |
390 | } |
391 | ||
392 | #endif | |
542e1629 | 393 | |
d5364748 | 394 | #if !defined (BFD) && !defined (BFD_ASSEMBLER) |
65bfcf2e | 395 | |
6efd877d KR |
396 | void |
397 | remove_subsegs (head, seg, root, last) | |
398 | frchainS *head; | |
399 | int seg; | |
400 | fragS **root; | |
401 | fragS **last; | |
65bfcf2e | 402 | { |
65bfcf2e | 403 | *root = head->frch_root; |
43ca9aa6 KR |
404 | *last = chain_frchains_together_1 (seg, head); |
405 | } | |
406 | ||
407 | #endif /* BFD */ | |
408 | ||
80aab579 ILT |
409 | #if defined (BFD_ASSEMBLER) || !defined (BFD) |
410 | ||
43ca9aa6 | 411 | #ifdef BFD_ASSEMBLER |
58d4951d ILT |
412 | static void |
413 | cvt_frag_to_fill (sec, fragP) | |
414 | segT sec; | |
43ca9aa6 | 415 | fragS *fragP; |
43ca9aa6 | 416 | #else |
58d4951d | 417 | static void |
d4083e29 | 418 | cvt_frag_to_fill (headersP, sec, fragP) |
3f81f3cf | 419 | object_headers *headersP; |
d4083e29 | 420 | segT sec; |
58d4951d | 421 | fragS *fragP; |
43ca9aa6 | 422 | #endif |
58d4951d | 423 | { |
43ca9aa6 | 424 | switch (fragP->fr_type) |
6efd877d | 425 | { |
43ca9aa6 | 426 | case rs_align: |
cd3b81bd | 427 | case rs_align_code: |
43ca9aa6 | 428 | case rs_org: |
cd3b81bd | 429 | case rs_space: |
43ca9aa6 KR |
430 | #ifdef HANDLE_ALIGN |
431 | HANDLE_ALIGN (fragP); | |
432 | #endif | |
43ca9aa6 | 433 | know (fragP->fr_next != NULL); |
43ca9aa6 KR |
434 | fragP->fr_offset = (fragP->fr_next->fr_address |
435 | - fragP->fr_address | |
98c6bbbe | 436 | - fragP->fr_fix) / fragP->fr_var; |
c151fd1e KR |
437 | if (fragP->fr_offset < 0) |
438 | { | |
439 | as_bad ("attempt to .org/.space backwards? (%ld)", | |
440 | (long) fragP->fr_offset); | |
441 | } | |
cd3b81bd | 442 | fragP->fr_type = rs_fill; |
43ca9aa6 | 443 | break; |
65bfcf2e | 444 | |
43ca9aa6 KR |
445 | case rs_fill: |
446 | break; | |
447 | ||
448 | case rs_machine_dependent: | |
449 | #ifdef BFD_ASSEMBLER | |
450 | md_convert_frag (stdoutput, sec, fragP); | |
451 | #else | |
d4083e29 | 452 | md_convert_frag (headersP, sec, fragP); |
43ca9aa6 KR |
453 | #endif |
454 | ||
d5364748 | 455 | assert (fragP->fr_next == NULL || (fragP->fr_next->fr_address - fragP->fr_address == fragP->fr_fix)); |
43ca9aa6 KR |
456 | |
457 | /* | |
458 | * After md_convert_frag, we make the frag into a ".space 0". | |
459 | * Md_convert_frag() should set up any fixSs and constants | |
460 | * required. | |
461 | */ | |
462 | frag_wane (fragP); | |
463 | break; | |
464 | ||
465 | #ifndef WORKING_DOT_WORD | |
466 | case rs_broken_word: | |
467 | { | |
468 | struct broken_word *lie; | |
469 | ||
470 | if (fragP->fr_subtype) | |
471 | { | |
472 | fragP->fr_fix += md_short_jump_size; | |
473 | for (lie = (struct broken_word *) (fragP->fr_symbol); | |
474 | lie && lie->dispfrag == fragP; | |
475 | lie = lie->next_broken_word) | |
476 | if (lie->added == 1) | |
477 | fragP->fr_fix += md_long_jump_size; | |
478 | } | |
479 | frag_wane (fragP); | |
480 | } | |
481 | break; | |
482 | #endif | |
483 | ||
484 | default: | |
485 | BAD_CASE (fragP->fr_type); | |
486 | break; | |
6efd877d | 487 | } |
65bfcf2e | 488 | } |
6efd877d | 489 | |
80aab579 ILT |
490 | #endif /* defined (BFD_ASSEMBLER) || !defined (BFD) */ |
491 | ||
43ca9aa6 KR |
492 | #ifdef BFD_ASSEMBLER |
493 | static void | |
494 | relax_and_size_seg (abfd, sec, xxx) | |
495 | bfd *abfd; | |
496 | asection *sec; | |
a58374d7 | 497 | PTR xxx; |
43ca9aa6 KR |
498 | { |
499 | flagword flags; | |
13e9182d KR |
500 | fragS *fragp; |
501 | segment_info_type *seginfo; | |
502 | int x; | |
503 | valueT size, newsize; | |
43ca9aa6 KR |
504 | |
505 | flags = bfd_get_section_flags (abfd, sec); | |
506 | ||
d9d6f094 | 507 | seginfo = seg_info (sec); |
13e9182d | 508 | if (seginfo && seginfo->frchainP) |
43ca9aa6 | 509 | { |
13e9182d KR |
510 | relax_segment (seginfo->frchainP->frch_root, sec); |
511 | for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next) | |
512 | cvt_frag_to_fill (sec, fragp); | |
513 | for (fragp = seginfo->frchainP->frch_root; | |
514 | fragp->fr_next; | |
515 | fragp = fragp->fr_next) | |
516 | /* walk to last elt */; | |
517 | size = fragp->fr_address + fragp->fr_fix; | |
518 | } | |
519 | else | |
520 | size = 0; | |
a58374d7 ILT |
521 | |
522 | if (size > 0 && ! seginfo->bss) | |
523 | flags |= SEC_HAS_CONTENTS; | |
524 | ||
525 | /* @@ This is just an approximation. */ | |
5f6efd5a | 526 | if (seginfo && seginfo->fix_root) |
a58374d7 ILT |
527 | flags |= SEC_RELOC; |
528 | else | |
529 | flags &= ~SEC_RELOC; | |
530 | x = bfd_set_section_flags (abfd, sec, flags); | |
531 | assert (x == true); | |
532 | ||
20b39b6f JL |
533 | newsize = md_section_align (sec, size); |
534 | x = bfd_set_section_size (abfd, sec, newsize); | |
13e9182d KR |
535 | assert (x == true); |
536 | ||
537 | /* If the size had to be rounded up, add some padding in the last | |
538 | non-empty frag. */ | |
13e9182d KR |
539 | assert (newsize >= size); |
540 | if (size != newsize) | |
541 | { | |
542 | fragS *last = seginfo->frchainP->frch_last; | |
543 | fragp = seginfo->frchainP->frch_root; | |
544 | while (fragp->fr_next != last) | |
545 | fragp = fragp->fr_next; | |
546 | last->fr_address = size; | |
547 | fragp->fr_offset += newsize - size; | |
548 | } | |
549 | ||
43ca9aa6 KR |
550 | #ifdef tc_frob_section |
551 | tc_frob_section (sec); | |
552 | #endif | |
553 | #ifdef obj_frob_section | |
554 | obj_frob_section (sec); | |
555 | #endif | |
556 | } | |
557 | ||
d5364748 KR |
558 | #ifdef DEBUG2 |
559 | static void | |
560 | dump_section_relocs (abfd, sec, stream_) | |
561 | bfd *abfd; | |
562 | asection *sec; | |
563 | char *stream_; | |
564 | { | |
565 | FILE *stream = (FILE *) stream_; | |
566 | segment_info_type *seginfo = seg_info (sec); | |
567 | fixS *fixp = seginfo->fix_root; | |
568 | ||
569 | if (!fixp) | |
570 | return; | |
571 | ||
572 | fprintf (stream, "sec %s relocs:\n", sec->name); | |
573 | while (fixp) | |
574 | { | |
575 | symbolS *s = fixp->fx_addsy; | |
576 | if (s) | |
1cf7548e KR |
577 | { |
578 | fprintf (stream, " %08x: %s(%s", fixp, S_GET_NAME (s), | |
579 | s->bsym->section->name); | |
580 | if (s->bsym->flags & BSF_SECTION_SYM) | |
581 | { | |
582 | fprintf (stream, " section sym"); | |
583 | if (S_GET_VALUE (s)) | |
584 | fprintf (stream, "+%x", S_GET_VALUE (s)); | |
585 | } | |
586 | else | |
587 | fprintf (stream, "+%x", S_GET_VALUE (s)); | |
588 | fprintf (stream, ")+%x\n", fixp->fx_offset); | |
589 | } | |
d5364748 KR |
590 | else |
591 | fprintf (stream, " %08x: type %d no sym\n", fixp, fixp->fx_r_type); | |
592 | fixp = fixp->fx_next; | |
593 | } | |
594 | } | |
595 | #else | |
596 | #define dump_section_relocs(ABFD,SEC,STREAM) (void)(ABFD,SEC,STREAM) | |
597 | #endif | |
598 | ||
98c6bbbe KR |
599 | #ifndef EMIT_SECTION_SYMBOLS |
600 | #define EMIT_SECTION_SYMBOLS 1 | |
601 | #endif | |
602 | ||
d5364748 KR |
603 | static void |
604 | adjust_reloc_syms (abfd, sec, xxx) | |
605 | bfd *abfd; | |
606 | asection *sec; | |
a58374d7 | 607 | PTR xxx; |
d5364748 KR |
608 | { |
609 | segment_info_type *seginfo = seg_info (sec); | |
610 | fixS *fixp; | |
611 | ||
612 | if (seginfo == NULL) | |
613 | return; | |
614 | ||
615 | dump_section_relocs (abfd, sec, stderr); | |
616 | ||
617 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) | |
98c6bbbe KR |
618 | if (fixp->fx_done) |
619 | /* ignore it */; | |
620 | else if (fixp->fx_addsy) | |
d5364748 | 621 | { |
a55774a1 | 622 | symbolS *sym; |
4acf8c78 KR |
623 | asection *symsec; |
624 | ||
625 | reduce_fixup: | |
626 | ||
a55774a1 KR |
627 | #ifdef DEBUG5 |
628 | fprintf (stderr, "\n\nadjusting fixup:\n"); | |
629 | print_fixup (fixp); | |
630 | #endif | |
631 | ||
632 | sym = fixp->fx_addsy; | |
4acf8c78 | 633 | symsec = sym->bsym->section; |
d5364748 | 634 | |
e120d9fb | 635 | if (sym != NULL && sym->sy_mri_common) |
1356d77d ILT |
636 | { |
637 | /* These symbols are handled specially in fixup_segment. */ | |
638 | goto done; | |
639 | } | |
640 | ||
a58374d7 ILT |
641 | /* If it's one of these sections, assume the symbol is |
642 | definitely going to be output. The code in | |
643 | md_estimate_size_before_relax in tc-mips.c uses this test | |
644 | as well, so if you change this code you should look at that | |
645 | code. */ | |
cd3b81bd KR |
646 | if (bfd_is_und_section (symsec) |
647 | || bfd_is_abs_section (symsec) | |
d5364748 | 648 | || bfd_is_com_section (symsec)) |
80aab579 ILT |
649 | { |
650 | fixp->fx_addsy->sy_used_in_reloc = 1; | |
d4083e29 KR |
651 | #ifdef UNDEFINED_DIFFERENCE_OK |
652 | /* We have the difference of an undefined symbol and some | |
653 | other symbol. Make sure to mark the other symbol as used | |
654 | in a relocation so that it will always be output. */ | |
655 | if (fixp->fx_subsy) | |
656 | fixp->fx_subsy->sy_used_in_reloc = 1; | |
657 | #endif | |
a55774a1 | 658 | goto done; |
80aab579 | 659 | } |
d5364748 KR |
660 | |
661 | /* Since we're reducing to section symbols, don't attempt to reduce | |
662 | anything that's already using one. */ | |
98c6bbbe | 663 | if (sym->bsym->flags & BSF_SECTION_SYM) |
80aab579 ILT |
664 | { |
665 | fixp->fx_addsy->sy_used_in_reloc = 1; | |
a55774a1 | 666 | goto done; |
80aab579 | 667 | } |
d5364748 KR |
668 | |
669 | /* Is there some other reason we can't adjust this one? (E.g., | |
670 | call/bal links in i960-bout symbols.) */ | |
671 | #ifdef obj_fix_adjustable | |
672 | if (! obj_fix_adjustable (fixp)) | |
80aab579 ILT |
673 | { |
674 | fixp->fx_addsy->sy_used_in_reloc = 1; | |
a55774a1 | 675 | goto done; |
80aab579 | 676 | } |
d5364748 | 677 | #endif |
efa0c22e KR |
678 | |
679 | /* Is there some other (target cpu dependent) reason we can't adjust | |
680 | this one? (E.g. relocations involving function addresses on | |
681 | the PA. */ | |
682 | #ifdef tc_fix_adjustable | |
683 | if (! tc_fix_adjustable (fixp)) | |
20b39b6f JL |
684 | { |
685 | fixp->fx_addsy->sy_used_in_reloc = 1; | |
a55774a1 | 686 | goto done; |
20b39b6f | 687 | } |
efa0c22e KR |
688 | #endif |
689 | ||
4acf8c78 KR |
690 | /* For PIC support: We may get expressions like |
691 | "_GLOBAL_OFFSET_TABLE_+(.-L5)" where "." and "L5" may not | |
692 | necessarily have had a fixed difference initially. But now | |
693 | it should be a known constant, so we can reduce it. Since | |
694 | we can't easily handle a symbol value that looks like | |
695 | someUndefinedSymbol+const, though, we convert the fixup to | |
696 | access the undefined symbol directly, and discard the | |
697 | intermediate symbol. */ | |
698 | if (S_GET_SEGMENT (sym) == expr_section | |
699 | && sym->sy_value.X_op == O_add | |
700 | && (resolve_symbol_value (sym->sy_value.X_add_symbol), | |
701 | S_GET_SEGMENT (sym->sy_value.X_add_symbol) == undefined_section) | |
702 | && (resolve_symbol_value (sym->sy_value.X_op_symbol), | |
703 | S_GET_SEGMENT (sym->sy_value.X_op_symbol) == absolute_section)) | |
704 | { | |
705 | fixp->fx_offset += S_GET_VALUE (sym->sy_value.X_op_symbol); | |
706 | fixp->fx_offset += sym->sy_value.X_add_number; | |
a55774a1 | 707 | fixp->fx_addsy = sym->sy_value.X_add_symbol; |
4acf8c78 KR |
708 | goto reduce_fixup; |
709 | } | |
710 | ||
d5364748 KR |
711 | /* If the section symbol isn't going to be output, the relocs |
712 | at least should still work. If not, figure out what to do | |
713 | when we run into that case. */ | |
714 | fixp->fx_offset += S_GET_VALUE (sym); | |
6868afe6 | 715 | fixp->fx_addsy = section_symbol (symsec); |
80aab579 | 716 | fixp->fx_addsy->sy_used_in_reloc = 1; |
a55774a1 KR |
717 | |
718 | done: | |
719 | ; | |
d5364748 | 720 | } |
1cf7548e | 721 | #if 1/*def RELOC_REQUIRES_SYMBOL*/ |
e67a0640 KR |
722 | else |
723 | { | |
724 | /* There was no symbol required by this relocation. However, | |
725 | BFD doesn't really handle relocations without symbols well. | |
726 | (At least, the COFF support doesn't.) So for now we fake up | |
727 | a local symbol in the absolute section. */ | |
e8501a72 | 728 | |
1cf7548e | 729 | fixp->fx_addsy = section_symbol (absolute_section); |
a55774a1 | 730 | /* fixp->fx_addsy->sy_used_in_reloc = 1; */ |
e67a0640 KR |
731 | } |
732 | #endif | |
d5364748 KR |
733 | |
734 | dump_section_relocs (abfd, sec, stderr); | |
735 | } | |
736 | ||
43ca9aa6 | 737 | static void |
8d6c34a1 | 738 | write_relocs (abfd, sec, xxx) |
43ca9aa6 KR |
739 | bfd *abfd; |
740 | asection *sec; | |
a58374d7 | 741 | PTR xxx; |
43ca9aa6 KR |
742 | { |
743 | segment_info_type *seginfo = seg_info (sec); | |
80aab579 ILT |
744 | int i; |
745 | unsigned int n; | |
43ca9aa6 KR |
746 | arelent **relocs; |
747 | fixS *fixp; | |
98c6bbbe | 748 | char *err; |
43ca9aa6 | 749 | |
d5364748 KR |
750 | /* If seginfo is NULL, we did not create this section; don't do |
751 | anything with it. */ | |
752 | if (seginfo == NULL) | |
43ca9aa6 KR |
753 | return; |
754 | ||
755 | fixup_segment (seginfo->fix_root, sec); | |
756 | ||
3d3c5039 | 757 | n = 0; |
d5364748 KR |
758 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) |
759 | n++; | |
43ca9aa6 | 760 | |
d5364748 | 761 | #ifndef RELOC_EXPANSION_POSSIBLE |
43ca9aa6 | 762 | /* Set up reloc information as well. */ |
43ca9aa6 KR |
763 | relocs = (arelent **) bfd_alloc_by_size_t (stdoutput, |
764 | n * sizeof (arelent *)); | |
8d6c34a1 | 765 | memset ((char*)relocs, 0, n * sizeof (arelent*)); |
43ca9aa6 | 766 | |
3d3c5039 ILT |
767 | i = 0; |
768 | for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next) | |
769 | { | |
770 | arelent *reloc; | |
3d3c5039 ILT |
771 | bfd_reloc_status_type s; |
772 | ||
98c6bbbe | 773 | if (fixp->fx_done) |
3d3c5039 | 774 | { |
3d3c5039 ILT |
775 | n--; |
776 | continue; | |
777 | } | |
778 | reloc = tc_gen_reloc (sec, fixp); | |
779 | if (!reloc) | |
780 | { | |
781 | n--; | |
782 | continue; | |
783 | } | |
c43d56f7 | 784 | if (fixp->fx_where + fixp->fx_size |
3d3c5039 ILT |
785 | > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset) |
786 | abort (); | |
335d35c8 | 787 | |
4acf8c78 KR |
788 | s = bfd_install_relocation (stdoutput, reloc, |
789 | fixp->fx_frag->fr_literal, | |
790 | fixp->fx_frag->fr_address, | |
791 | sec, &err); | |
3d3c5039 ILT |
792 | switch (s) |
793 | { | |
794 | case bfd_reloc_ok: | |
795 | break; | |
df44a852 KR |
796 | case bfd_reloc_overflow: |
797 | as_bad_where (fixp->fx_file, fixp->fx_line, "relocation overflow"); | |
798 | break; | |
3d3c5039 | 799 | default: |
4acf8c78 KR |
800 | as_fatal ("%s:%u: bad return from bfd_perform_relocation", |
801 | fixp->fx_file, fixp->fx_line); | |
3d3c5039 ILT |
802 | } |
803 | relocs[i++] = reloc; | |
804 | } | |
d5364748 KR |
805 | #else |
806 | n = n * MAX_RELOC_EXPANSION; | |
807 | /* Set up reloc information as well. */ | |
808 | relocs = (arelent **) bfd_alloc_by_size_t (stdoutput, | |
809 | n * sizeof (arelent *)); | |
810 | ||
811 | i = 0; | |
812 | for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next) | |
813 | { | |
814 | arelent **reloc; | |
d5364748 KR |
815 | char *data; |
816 | bfd_reloc_status_type s; | |
817 | int j; | |
818 | ||
98c6bbbe | 819 | if (fixp->fx_done) |
d5364748 | 820 | { |
d5364748 KR |
821 | n--; |
822 | continue; | |
823 | } | |
824 | reloc = tc_gen_reloc (sec, fixp); | |
825 | ||
826 | for (j = 0; reloc[j]; j++) | |
827 | { | |
828 | relocs[i++] = reloc[j]; | |
829 | assert(i <= n); | |
830 | } | |
831 | data = fixp->fx_frag->fr_literal + fixp->fx_where; | |
c43d56f7 | 832 | if (fixp->fx_where + fixp->fx_size |
d5364748 KR |
833 | > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset) |
834 | abort (); | |
835 | for (j = 0; reloc[j]; j++) | |
836 | { | |
a55774a1 KR |
837 | s = bfd_install_relocation (stdoutput, reloc[j], |
838 | fixp->fx_frag->fr_literal, | |
839 | fixp->fx_frag->fr_address, | |
840 | sec, &err); | |
d5364748 KR |
841 | switch (s) |
842 | { | |
98c6bbbe KR |
843 | case bfd_reloc_ok: |
844 | break; | |
4acf8c78 KR |
845 | case bfd_reloc_overflow: |
846 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
847 | "relocation overflow"); | |
848 | break; | |
98c6bbbe | 849 | default: |
4acf8c78 KR |
850 | as_fatal ("%s:%u: bad return from bfd_perform_relocation", |
851 | fixp->fx_file, fixp->fx_line); | |
d5364748 KR |
852 | } |
853 | } | |
854 | } | |
855 | n = i; | |
856 | #endif | |
857 | ||
1cf7548e KR |
858 | #ifdef DEBUG4 |
859 | { | |
860 | int i, j, nsyms; | |
861 | asymbol **sympp; | |
862 | sympp = bfd_get_outsymbols (stdoutput); | |
863 | nsyms = bfd_get_symcount (stdoutput); | |
864 | for (i = 0; i < n; i++) | |
865 | if (((*relocs[i]->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0) | |
866 | { | |
867 | for (j = 0; j < nsyms; j++) | |
868 | if (sympp[j] == *relocs[i]->sym_ptr_ptr) | |
869 | break; | |
870 | if (j == nsyms) | |
871 | abort (); | |
872 | } | |
873 | } | |
874 | #endif | |
875 | ||
3d3c5039 ILT |
876 | if (n) |
877 | bfd_set_reloc (stdoutput, sec, relocs, n); | |
d5364748 KR |
878 | else |
879 | bfd_set_section_flags (abfd, sec, | |
80aab579 ILT |
880 | (bfd_get_section_flags (abfd, sec) |
881 | & (flagword) ~SEC_RELOC)); | |
98c6bbbe KR |
882 | |
883 | #ifdef DEBUG3 | |
d5364748 KR |
884 | { |
885 | int i; | |
886 | arelent *r; | |
887 | asymbol *s; | |
888 | fprintf (stderr, "relocs for sec %s\n", sec->name); | |
889 | for (i = 0; i < n; i++) | |
890 | { | |
891 | r = relocs[i]; | |
892 | s = *r->sym_ptr_ptr; | |
893 | fprintf (stderr, " reloc %2d @%08x off %4x : sym %-10s addend %x\n", | |
894 | i, r, r->address, s->name, r->addend); | |
895 | } | |
896 | } | |
897 | #endif | |
8d6c34a1 | 898 | } |
d5364748 | 899 | |
8d6c34a1 KR |
900 | static void |
901 | write_contents (abfd, sec, xxx) | |
902 | bfd *abfd; | |
903 | asection *sec; | |
a58374d7 | 904 | PTR xxx; |
8d6c34a1 KR |
905 | { |
906 | segment_info_type *seginfo = seg_info (sec); | |
907 | unsigned long offset = 0; | |
80aab579 | 908 | fragS *f; |
3d3c5039 ILT |
909 | |
910 | /* Write out the frags. */ | |
f37449aa ILT |
911 | if (seginfo == NULL |
912 | || ! (bfd_get_section_flags (abfd, sec) & SEC_HAS_CONTENTS)) | |
d5364748 KR |
913 | return; |
914 | ||
80aab579 ILT |
915 | for (f = seginfo->frchainP->frch_root; |
916 | f; | |
917 | f = f->fr_next) | |
43ca9aa6 KR |
918 | { |
919 | int x; | |
920 | unsigned long fill_size; | |
921 | char *fill_literal; | |
922 | long count; | |
923 | ||
80aab579 ILT |
924 | assert (f->fr_type == rs_fill); |
925 | if (f->fr_fix) | |
43ca9aa6 KR |
926 | { |
927 | x = bfd_set_section_contents (stdoutput, sec, | |
80aab579 ILT |
928 | f->fr_literal, (file_ptr) offset, |
929 | (bfd_size_type) f->fr_fix); | |
1cf7548e KR |
930 | if (x == false) |
931 | { | |
932 | bfd_perror (stdoutput->filename); | |
933 | as_perror ("FATAL: Can't write %s", stdoutput->filename); | |
4acf8c78 | 934 | exit (EXIT_FAILURE); |
1cf7548e | 935 | } |
80aab579 | 936 | offset += f->fr_fix; |
43ca9aa6 | 937 | } |
80aab579 ILT |
938 | fill_literal = f->fr_literal + f->fr_fix; |
939 | fill_size = f->fr_var; | |
940 | count = f->fr_offset; | |
43ca9aa6 KR |
941 | assert (count >= 0); |
942 | if (fill_size && count) | |
d9d6f094 KR |
943 | #ifdef BFD_FAST_SECTION_FILL |
944 | { | |
945 | char buf[256]; | |
946 | if (fill_size > sizeof(buf)) { | |
947 | /* Do it the old way. Can this ever happen? */ | |
43ca9aa6 KR |
948 | while (count--) |
949 | { | |
950 | x = bfd_set_section_contents (stdoutput, sec, | |
80aab579 | 951 | fill_literal, (file_ptr) offset, |
d5364748 | 952 | (bfd_size_type) fill_size); |
1cf7548e KR |
953 | if (x == false) |
954 | { | |
955 | bfd_perror (stdoutput->filename); | |
956 | as_perror ("FATAL: Can't write %s", stdoutput->filename); | |
4acf8c78 | 957 | exit (EXIT_FAILURE); |
1cf7548e | 958 | } |
43ca9aa6 KR |
959 | offset += fill_size; |
960 | } | |
d9d6f094 KR |
961 | } |
962 | else { | |
963 | /* Build a buffer full of fill objects and output it as | |
964 | * often as necessary. This saves on the overhead of potentially | |
965 | * lots of bfd_set_section_contents calls. | |
966 | */ | |
b04bc423 | 967 | int n_per_buf, i; |
d9d6f094 KR |
968 | if (fill_size == 1) |
969 | { | |
970 | n_per_buf = sizeof (buf); | |
971 | memset (buf, *fill_literal, n_per_buf); | |
972 | } | |
973 | else | |
974 | { | |
975 | char *bufp; | |
976 | n_per_buf = sizeof(buf)/fill_size; | |
977 | for (i = n_per_buf, bufp = buf; i; i--, bufp += fill_size) | |
978 | memcpy(bufp, fill_literal, fill_size); | |
979 | } | |
980 | for (; count > 0; count -= n_per_buf) | |
981 | { | |
982 | n_per_buf = n_per_buf > count ? count : n_per_buf; | |
983 | x = bfd_set_section_contents (stdoutput, sec, | |
984 | buf, (file_ptr) offset, | |
985 | (bfd_size_type) n_per_buf * fill_size); | |
c151fd1e KR |
986 | if (x != true) |
987 | as_fatal ("Cannot write to output file."); | |
d9d6f094 KR |
988 | offset += n_per_buf * fill_size; |
989 | } | |
990 | } | |
991 | } | |
992 | #else | |
993 | while (count--) | |
994 | { | |
995 | x = bfd_set_section_contents (stdoutput, sec, | |
996 | fill_literal, (file_ptr) offset, | |
997 | (bfd_size_type) fill_size); | |
c151fd1e KR |
998 | if (x != true) |
999 | as_fatal ("Cannot write to output file."); | |
d9d6f094 KR |
1000 | offset += fill_size; |
1001 | } | |
1002 | #endif | |
43ca9aa6 | 1003 | } |
43ca9aa6 KR |
1004 | } |
1005 | #endif | |
1006 | ||
80aab579 | 1007 | #if defined(BFD_ASSEMBLER) || (!defined (BFD) && !defined(OBJ_AOUT)) |
b23f6743 KR |
1008 | static void |
1009 | merge_data_into_text () | |
1010 | { | |
4064305e | 1011 | #if defined(BFD_ASSEMBLER) || defined(MANY_SEGMENTS) |
b23f6743 KR |
1012 | seg_info (text_section)->frchainP->frch_last->fr_next = |
1013 | seg_info (data_section)->frchainP->frch_root; | |
1014 | seg_info (text_section)->frchainP->frch_last = | |
1015 | seg_info (data_section)->frchainP->frch_last; | |
1016 | seg_info (data_section)->frchainP = 0; | |
1017 | #else | |
1018 | fixS *tmp; | |
1019 | ||
1020 | text_last_frag->fr_next = data_frag_root; | |
1021 | text_last_frag = data_last_frag; | |
1022 | data_last_frag = NULL; | |
1023 | data_frag_root = NULL; | |
1024 | if (text_fix_root) | |
1025 | { | |
1026 | for (tmp = text_fix_root; tmp->fx_next; tmp = tmp->fx_next);; | |
1027 | tmp->fx_next = data_fix_root; | |
1028 | text_fix_tail = data_fix_tail; | |
1029 | } | |
1030 | else | |
1031 | text_fix_root = data_fix_root; | |
1032 | data_fix_root = NULL; | |
1033 | #endif | |
1034 | } | |
80aab579 | 1035 | #endif /* BFD_ASSEMBLER || (! BFD && ! OBJ_AOUT) */ |
b23f6743 KR |
1036 | |
1037 | #if !defined (BFD_ASSEMBLER) && !defined (BFD) | |
1038 | static void | |
1039 | relax_and_size_all_segments () | |
1040 | { | |
13e9182d KR |
1041 | fragS *fragP; |
1042 | ||
b23f6743 KR |
1043 | relax_segment (text_frag_root, SEG_TEXT); |
1044 | relax_segment (data_frag_root, SEG_DATA); | |
1045 | relax_segment (bss_frag_root, SEG_BSS); | |
1046 | /* | |
1047 | * Now the addresses of frags are correct within the segment. | |
1048 | */ | |
1049 | ||
1050 | know (text_last_frag->fr_type == rs_fill && text_last_frag->fr_offset == 0); | |
1051 | H_SET_TEXT_SIZE (&headers, text_last_frag->fr_address); | |
1052 | text_last_frag->fr_address = H_GET_TEXT_SIZE (&headers); | |
1053 | ||
1054 | /* | |
1055 | * Join the 2 segments into 1 huge segment. | |
1056 | * To do this, re-compute every rn_address in the SEG_DATA frags. | |
1057 | * Then join the data frags after the text frags. | |
1058 | * | |
1059 | * Determine a_data [length of data segment]. | |
1060 | */ | |
1061 | if (data_frag_root) | |
1062 | { | |
1063 | register relax_addressT slide; | |
1064 | ||
1065 | know ((text_last_frag->fr_type == rs_fill) && (text_last_frag->fr_offset == 0)); | |
1066 | ||
1067 | H_SET_DATA_SIZE (&headers, data_last_frag->fr_address); | |
1068 | data_last_frag->fr_address = H_GET_DATA_SIZE (&headers); | |
1069 | slide = H_GET_TEXT_SIZE (&headers); /* & in file of the data segment. */ | |
1070 | #ifdef OBJ_BOUT | |
1071 | #define RoundUp(N,S) (((N)+(S)-1)&-(S)) | |
1072 | /* For b.out: If the data section has a strict alignment | |
1073 | requirement, its load address in the .o file will be | |
1074 | rounded up from the size of the text section. These | |
1075 | two values are *not* the same! Similarly for the bss | |
1076 | section.... */ | |
1077 | slide = RoundUp (slide, 1 << section_alignment[SEG_DATA]); | |
1078 | #endif | |
1079 | ||
1080 | for (fragP = data_frag_root; fragP; fragP = fragP->fr_next) | |
1081 | { | |
1082 | fragP->fr_address += slide; | |
1083 | } /* for each data frag */ | |
1084 | ||
1085 | know (text_last_frag != 0); | |
1086 | text_last_frag->fr_next = data_frag_root; | |
1087 | } | |
1088 | else | |
1089 | { | |
1090 | H_SET_DATA_SIZE (&headers, 0); | |
1091 | } | |
1092 | ||
1093 | #ifdef OBJ_BOUT | |
1094 | /* See above comments on b.out data section address. */ | |
1095 | { | |
1096 | long bss_vma; | |
1097 | if (data_last_frag == 0) | |
1098 | bss_vma = H_GET_TEXT_SIZE (&headers); | |
1099 | else | |
1100 | bss_vma = data_last_frag->fr_address; | |
1101 | bss_vma = RoundUp (bss_vma, 1 << section_alignment[SEG_BSS]); | |
1102 | bss_address_frag.fr_address = bss_vma; | |
1103 | } | |
1104 | #else /* ! OBJ_BOUT */ | |
1105 | bss_address_frag.fr_address = (H_GET_TEXT_SIZE (&headers) + | |
1106 | H_GET_DATA_SIZE (&headers)); | |
1107 | ||
efa0c22e | 1108 | #endif /* ! OBJ_BOUT */ |
b23f6743 KR |
1109 | |
1110 | /* Slide all the frags */ | |
1111 | if (bss_frag_root) | |
1112 | { | |
1113 | relax_addressT slide = bss_address_frag.fr_address; | |
1114 | ||
1115 | for (fragP = bss_frag_root; fragP; fragP = fragP->fr_next) | |
1116 | { | |
1117 | fragP->fr_address += slide; | |
1118 | } /* for each bss frag */ | |
1119 | } | |
1120 | ||
b23f6743 KR |
1121 | if (bss_last_frag) |
1122 | H_SET_BSS_SIZE (&headers, | |
1123 | bss_last_frag->fr_address - bss_frag_root->fr_address); | |
1124 | else | |
1125 | H_SET_BSS_SIZE (&headers, 0); | |
1126 | } | |
1127 | #endif /* ! BFD_ASSEMBLER && ! BFD */ | |
1128 | ||
d5364748 KR |
1129 | #if defined (BFD_ASSEMBLER) || !defined (BFD) |
1130 | ||
1b96bdce | 1131 | #ifdef BFD_ASSEMBLER |
1cf7548e KR |
1132 | static void |
1133 | set_symtab () | |
1134 | { | |
1135 | int nsyms; | |
1136 | asymbol **asympp; | |
1137 | symbolS *symp; | |
1138 | boolean result; | |
1139 | extern PTR bfd_alloc PARAMS ((bfd *, size_t)); | |
1140 | ||
1141 | /* Count symbols. We can't rely on a count made by the loop in | |
1142 | write_object_file, because *_frob_file may add a new symbol or | |
1143 | two. */ | |
1144 | nsyms = 0; | |
1145 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
1146 | nsyms++; | |
1147 | ||
1148 | if (nsyms) | |
1149 | { | |
1150 | int i; | |
1151 | ||
1152 | asympp = (asymbol **) bfd_alloc (stdoutput, | |
1153 | nsyms * sizeof (asymbol *)); | |
1154 | symp = symbol_rootP; | |
1155 | for (i = 0; i < nsyms; i++, symp = symbol_next (symp)) | |
1156 | { | |
1157 | asympp[i] = symp->bsym; | |
1158 | symp->written = 1; | |
1159 | } | |
1160 | } | |
1161 | else | |
1162 | asympp = 0; | |
1163 | result = bfd_set_symtab (stdoutput, asympp, nsyms); | |
1164 | assert (result == true); | |
1165 | symbol_table_frozen = 1; | |
1166 | } | |
1b96bdce | 1167 | #endif |
1cf7548e | 1168 | |
6efd877d KR |
1169 | void |
1170 | write_object_file () | |
45432836 | 1171 | { |
741f4d66 | 1172 | struct frchain *frchainP; /* Track along all frchains. */ |
58d4951d | 1173 | #if ! defined (BFD_ASSEMBLER) || ! defined (WORKING_DOT_WORD) |
741f4d66 | 1174 | fragS *fragP; /* Track along all frags. */ |
58d4951d | 1175 | #endif |
6efd877d | 1176 | |
43ca9aa6 KR |
1177 | /* Do we really want to write it? */ |
1178 | { | |
1179 | int n_warns, n_errs; | |
1180 | n_warns = had_warnings (); | |
1181 | n_errs = had_errors (); | |
1182 | /* The -Z flag indicates that an object file should be generated, | |
1183 | regardless of warnings and errors. */ | |
def66e24 | 1184 | if (flag_always_generate_output) |
43ca9aa6 KR |
1185 | { |
1186 | if (n_warns || n_errs) | |
1187 | as_warn ("%d error%s, %d warning%s, generating bad object file.\n", | |
1188 | n_errs, n_errs == 1 ? "" : "s", | |
1189 | n_warns, n_warns == 1 ? "" : "s"); | |
1190 | } | |
1191 | else | |
1192 | { | |
1193 | if (n_errs) | |
1194 | as_fatal ("%d error%s, %d warning%s, no object file generated.\n", | |
1195 | n_errs, n_errs == 1 ? "" : "s", | |
1196 | n_warns, n_warns == 1 ? "" : "s"); | |
1197 | } | |
1198 | } | |
1199 | ||
3eb802b5 | 1200 | #ifdef OBJ_VMS |
1cf7548e KR |
1201 | /* Under VMS we try to be compatible with VAX-11 "C". Thus, we call |
1202 | a routine to check for the definition of the procedure "_main", | |
1203 | and if so -- fix it up so that it can be program entry point. */ | |
8e86815b | 1204 | vms_check_for_main (); |
3f81f3cf | 1205 | #endif /* OBJ_VMS */ |
43ca9aa6 KR |
1206 | |
1207 | /* After every sub-segment, we fake an ".align ...". This conforms to | |
1208 | BSD4.2 brane-damage. We then fake ".fill 0" because that is the kind of | |
1209 | frag that requires least thought. ".align" frags like to have a | |
1210 | following frag since that makes calculating their intended length | |
1211 | trivial. | |
1212 | ||
1213 | @@ Is this really necessary?? */ | |
3eb802b5 | 1214 | #ifndef SUB_SEGMENT_ALIGN |
43ca9aa6 | 1215 | #ifdef BFD_ASSEMBLER |
f2f7d044 | 1216 | #define SUB_SEGMENT_ALIGN(SEG) (0) |
43ca9aa6 | 1217 | #else |
f2f7d044 | 1218 | #define SUB_SEGMENT_ALIGN(SEG) (2) |
43ca9aa6 | 1219 | #endif |
3eb802b5 | 1220 | #endif |
6efd877d KR |
1221 | for (frchainP = frchain_root; frchainP; frchainP = frchainP->frch_next) |
1222 | { | |
43ca9aa6 | 1223 | subseg_set (frchainP->frch_seg, frchainP->frch_subseg); |
f2f7d044 | 1224 | frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE); |
43ca9aa6 KR |
1225 | /* frag_align will have left a new frag. |
1226 | Use this last frag for an empty ".fill". | |
1227 | ||
1228 | For this segment ... | |
1229 | Create a last frag. Do not leave a "being filled in frag". */ | |
6efd877d KR |
1230 | frag_wane (frag_now); |
1231 | frag_now->fr_fix = 0; | |
1232 | know (frag_now->fr_next == NULL); | |
43ca9aa6 | 1233 | } |
6efd877d | 1234 | |
43ca9aa6 KR |
1235 | /* From now on, we don't care about sub-segments. Build one frag chain |
1236 | for each segment. Linked thru fr_next. */ | |
65bfcf2e | 1237 | |
43ca9aa6 KR |
1238 | #ifdef BFD_ASSEMBLER |
1239 | /* Remove the sections created by gas for its own purposes. */ | |
1240 | { | |
1241 | asection **seclist, *sec; | |
a55774a1 KR |
1242 | int i; |
1243 | ||
43ca9aa6 KR |
1244 | seclist = &stdoutput->sections; |
1245 | while (seclist && *seclist) | |
1246 | { | |
1247 | sec = *seclist; | |
5ac34ac3 | 1248 | while (sec == reg_section || sec == expr_section) |
43ca9aa6 KR |
1249 | { |
1250 | sec = sec->next; | |
1251 | *seclist = sec; | |
1252 | stdoutput->section_count--; | |
1253 | if (!sec) | |
1254 | break; | |
1255 | } | |
1256 | if (*seclist) | |
1257 | seclist = &(*seclist)->next; | |
1258 | } | |
a55774a1 KR |
1259 | i = 0; |
1260 | bfd_map_over_sections (stdoutput, renumber_sections, &i); | |
43ca9aa6 KR |
1261 | } |
1262 | ||
1263 | bfd_map_over_sections (stdoutput, chain_frchains_together, (char *) 0); | |
1264 | #else | |
6efd877d KR |
1265 | remove_subsegs (frchain_root, SEG_TEXT, &text_frag_root, &text_last_frag); |
1266 | remove_subsegs (data0_frchainP, SEG_DATA, &data_frag_root, &data_last_frag); | |
1267 | remove_subsegs (bss0_frchainP, SEG_BSS, &bss_frag_root, &bss_last_frag); | |
43ca9aa6 | 1268 | #endif |
6efd877d | 1269 | |
43ca9aa6 KR |
1270 | /* We have two segments. If user gave -R flag, then we must put the |
1271 | data frags into the text segment. Do this before relaxing so | |
1272 | we know to take advantage of -R and make shorter addresses. */ | |
1273 | #if !defined (OBJ_AOUT) || defined (BFD_ASSEMBLER) | |
def66e24 | 1274 | if (flag_readonly_data_in_text) |
6efd877d | 1275 | { |
b23f6743 | 1276 | merge_data_into_text (); |
6efd877d KR |
1277 | } |
1278 | #endif | |
43ca9aa6 KR |
1279 | |
1280 | #ifdef BFD_ASSEMBLER | |
1281 | bfd_map_over_sections (stdoutput, relax_and_size_seg, (char *) 0); | |
1282 | #else | |
b23f6743 | 1283 | relax_and_size_all_segments (); |
43ca9aa6 | 1284 | #endif /* BFD_ASSEMBLER */ |
65bfcf2e | 1285 | |
43ca9aa6 | 1286 | #ifndef BFD_ASSEMBLER |
6efd877d | 1287 | /* |
7f2cb270 KR |
1288 | * |
1289 | * Crawl the symbol chain. | |
1290 | * | |
1291 | * For each symbol whose value depends on a frag, take the address of | |
1292 | * that frag and subsume it into the value of the symbol. | |
1293 | * After this, there is just one way to lookup a symbol value. | |
1294 | * Values are left in their final state for object file emission. | |
1295 | * We adjust the values of 'L' local symbols, even if we do | |
1296 | * not intend to emit them to the object file, because their values | |
1297 | * are needed for fix-ups. | |
1298 | * | |
1299 | * Unless we saw a -L flag, remove all symbols that begin with 'L' | |
1300 | * from the symbol chain. (They are still pointed to by the fixes.) | |
1301 | * | |
1302 | * Count the remaining symbols. | |
1303 | * Assign a symbol number to each symbol. | |
1304 | * Count the number of string-table chars we will emit. | |
1305 | * Put this info into the headers as appropriate. | |
1306 | * | |
1307 | */ | |
6efd877d KR |
1308 | know (zero_address_frag.fr_address == 0); |
1309 | string_byte_count = sizeof (string_byte_count); | |
1310 | ||
1311 | obj_crawl_symbol_chain (&headers); | |
1312 | ||
1313 | if (string_byte_count == sizeof (string_byte_count)) | |
43ca9aa6 | 1314 | string_byte_count = 0; |
6efd877d KR |
1315 | |
1316 | H_SET_STRING_SIZE (&headers, string_byte_count); | |
1317 | ||
1318 | /* | |
7f2cb270 KR |
1319 | * Addresses of frags now reflect addresses we use in the object file. |
1320 | * Symbol values are correct. | |
1321 | * Scan the frags, converting any ".org"s and ".align"s to ".fill"s. | |
1322 | * Also converting any machine-dependent frags using md_convert_frag(); | |
1323 | */ | |
6efd877d KR |
1324 | subseg_change (SEG_TEXT, 0); |
1325 | ||
1326 | for (fragP = text_frag_root; fragP; fragP = fragP->fr_next) | |
1327 | { | |
d4083e29 | 1328 | cvt_frag_to_fill (&headers, SEG_TEXT, fragP); |
6efd877d | 1329 | |
43ca9aa6 KR |
1330 | /* Some assert macros don't work with # directives mixed in. */ |
1331 | #ifndef NDEBUG | |
1332 | if (!(fragP->fr_next == NULL | |
ebfb4167 | 1333 | #ifdef OBJ_BOUT |
43ca9aa6 | 1334 | || fragP->fr_next == data_frag_root |
ebfb4167 | 1335 | #endif |
6efd877d | 1336 | || ((fragP->fr_next->fr_address - fragP->fr_address) |
43ca9aa6 KR |
1337 | == (fragP->fr_fix + fragP->fr_offset * fragP->fr_var)))) |
1338 | abort (); | |
1339 | #endif | |
1340 | } | |
1341 | #endif /* ! BFD_ASSEMBLER */ | |
6efd877d | 1342 | |
fecd2382 | 1343 | #ifndef WORKING_DOT_WORD |
6efd877d KR |
1344 | { |
1345 | struct broken_word *lie; | |
1346 | struct broken_word **prevP; | |
1347 | ||
1348 | prevP = &broken_words; | |
1349 | for (lie = broken_words; lie; lie = lie->next_broken_word) | |
1350 | if (!lie->added) | |
a39116f1 | 1351 | { |
5ac34ac3 ILT |
1352 | expressionS exp; |
1353 | ||
1354 | exp.X_op = O_subtract; | |
1355 | exp.X_add_symbol = lie->add; | |
1356 | exp.X_op_symbol = lie->sub; | |
1357 | exp.X_add_number = lie->addnum; | |
43ca9aa6 | 1358 | #ifdef BFD_ASSEMBLER |
d9d6f094 KR |
1359 | #ifdef TC_CONS_FIX_NEW |
1360 | TC_CONS_FIX_NEW (lie->frag, | |
1361 | lie->word_goes_here - lie->frag->fr_literal, | |
1362 | 2, &exp); | |
1363 | #else | |
5ac34ac3 ILT |
1364 | fix_new_exp (lie->frag, |
1365 | lie->word_goes_here - lie->frag->fr_literal, | |
1366 | 2, &exp, 0, BFD_RELOC_NONE); | |
d9d6f094 | 1367 | #endif |
43ca9aa6 KR |
1368 | #else |
1369 | #if defined(TC_SPARC) || defined(TC_A29K) || defined(NEED_FX_R_TYPE) | |
5ac34ac3 ILT |
1370 | fix_new_exp (lie->frag, |
1371 | lie->word_goes_here - lie->frag->fr_literal, | |
1372 | 2, &exp, 0, NO_RELOC); | |
43ca9aa6 | 1373 | #else |
fecd2382 | 1374 | #ifdef TC_NS32K |
5ac34ac3 ILT |
1375 | fix_new_ns32k_exp (lie->frag, |
1376 | lie->word_goes_here - lie->frag->fr_literal, | |
1377 | 2, &exp, 0, 0, 2, 0, 0); | |
343fb08d | 1378 | #else |
5ac34ac3 ILT |
1379 | fix_new_exp (lie->frag, |
1380 | lie->word_goes_here - lie->frag->fr_literal, | |
1381 | 2, &exp, 0, 0); | |
fecd2382 | 1382 | #endif /* TC_NS32K */ |
43ca9aa6 KR |
1383 | #endif /* TC_SPARC|TC_A29K|NEED_FX_R_TYPE */ |
1384 | #endif /* BFD_ASSEMBLER */ | |
6efd877d | 1385 | *prevP = lie->next_broken_word; |
a39116f1 | 1386 | } |
6efd877d KR |
1387 | else |
1388 | prevP = &(lie->next_broken_word); | |
1389 | ||
1390 | for (lie = broken_words; lie;) | |
1391 | { | |
1392 | struct broken_word *untruth; | |
1393 | char *table_ptr; | |
d5364748 KR |
1394 | addressT table_addr; |
1395 | addressT from_addr, to_addr; | |
6efd877d KR |
1396 | int n, m; |
1397 | ||
6efd877d KR |
1398 | fragP = lie->dispfrag; |
1399 | ||
43ca9aa6 | 1400 | /* Find out how many broken_words go here. */ |
6efd877d KR |
1401 | n = 0; |
1402 | for (untruth = lie; untruth && untruth->dispfrag == fragP; untruth = untruth->next_broken_word) | |
1403 | if (untruth->added == 1) | |
1404 | n++; | |
1405 | ||
1406 | table_ptr = lie->dispfrag->fr_opcode; | |
1407 | table_addr = lie->dispfrag->fr_address + (table_ptr - lie->dispfrag->fr_literal); | |
43ca9aa6 KR |
1408 | /* Create the jump around the long jumps. This is a short |
1409 | jump from table_ptr+0 to table_ptr+n*long_jump_size. */ | |
6efd877d KR |
1410 | from_addr = table_addr; |
1411 | to_addr = table_addr + md_short_jump_size + n * md_long_jump_size; | |
1412 | md_create_short_jump (table_ptr, from_addr, to_addr, lie->dispfrag, lie->add); | |
1413 | table_ptr += md_short_jump_size; | |
1414 | table_addr += md_short_jump_size; | |
1415 | ||
1416 | for (m = 0; lie && lie->dispfrag == fragP; m++, lie = lie->next_broken_word) | |
1417 | { | |
1418 | if (lie->added == 2) | |
1419 | continue; | |
1420 | /* Patch the jump table */ | |
1421 | /* This is the offset from ??? to table_ptr+0 */ | |
d5364748 | 1422 | to_addr = table_addr - S_GET_VALUE (lie->sub); |
d9d6f094 KR |
1423 | #ifdef BFD_ASSEMBLER |
1424 | to_addr -= lie->sub->sy_frag->fr_address; | |
1425 | #endif | |
6efd877d KR |
1426 | md_number_to_chars (lie->word_goes_here, to_addr, 2); |
1427 | for (untruth = lie->next_broken_word; untruth && untruth->dispfrag == fragP; untruth = untruth->next_broken_word) | |
1428 | { | |
1429 | if (untruth->use_jump == lie) | |
1430 | md_number_to_chars (untruth->word_goes_here, to_addr, 2); | |
1431 | } | |
1432 | ||
1433 | /* Install the long jump */ | |
1434 | /* this is a long jump from table_ptr+0 to the final target */ | |
1435 | from_addr = table_addr; | |
1436 | to_addr = S_GET_VALUE (lie->add) + lie->addnum; | |
d9d6f094 KR |
1437 | #ifdef BFD_ASSEMBLER |
1438 | to_addr += lie->add->sy_frag->fr_address; | |
1439 | #endif | |
6efd877d KR |
1440 | md_create_long_jump (table_ptr, from_addr, to_addr, lie->dispfrag, lie->add); |
1441 | table_ptr += md_long_jump_size; | |
1442 | table_addr += md_long_jump_size; | |
1443 | } | |
1444 | } | |
1445 | } | |
fecd2382 | 1446 | #endif /* not WORKING_DOT_WORD */ |
6efd877d | 1447 | |
43ca9aa6 | 1448 | #ifndef BFD_ASSEMBLER |
3eb802b5 | 1449 | #ifndef OBJ_VMS |
6efd877d | 1450 | { /* not vms */ |
3f81f3cf | 1451 | char *the_object_file; |
1cf7548e | 1452 | long object_file_size; |
6efd877d | 1453 | /* |
3eb802b5 ILT |
1454 | * Scan every FixS performing fixups. We had to wait until now to do |
1455 | * this because md_convert_frag() may have made some fixSs. | |
1456 | */ | |
6efd877d KR |
1457 | int trsize, drsize; |
1458 | ||
1459 | subseg_change (SEG_TEXT, 0); | |
d5364748 | 1460 | trsize = md_reloc_size * fixup_segment (text_fix_root, SEG_TEXT); |
6efd877d | 1461 | subseg_change (SEG_DATA, 0); |
d5364748 | 1462 | drsize = md_reloc_size * fixup_segment (data_fix_root, SEG_DATA); |
6efd877d KR |
1463 | H_SET_RELOCATION_SIZE (&headers, trsize, drsize); |
1464 | ||
1465 | /* FIXME move this stuff into the pre-write-hook */ | |
1466 | H_SET_MAGIC_NUMBER (&headers, magic_number_for_object_file); | |
1467 | H_SET_ENTRY_POINT (&headers, 0); | |
1468 | ||
1469 | obj_pre_write_hook (&headers); /* extra coff stuff */ | |
6efd877d KR |
1470 | |
1471 | object_file_size = H_GET_FILE_SIZE (&headers); | |
1472 | next_object_file_charP = the_object_file = xmalloc (object_file_size); | |
1473 | ||
1474 | output_file_create (out_file_name); | |
1475 | ||
1476 | obj_header_append (&next_object_file_charP, &headers); | |
1477 | ||
1478 | know ((next_object_file_charP - the_object_file) == H_GET_HEADER_SIZE (&headers)); | |
1479 | ||
1480 | /* | |
43ca9aa6 KR |
1481 | * Emit code. |
1482 | */ | |
6efd877d KR |
1483 | for (fragP = text_frag_root; fragP; fragP = fragP->fr_next) |
1484 | { | |
1485 | register long count; | |
1486 | register char *fill_literal; | |
1487 | register long fill_size; | |
1488 | ||
c151fd1e | 1489 | PROGRESS (1); |
6efd877d KR |
1490 | know (fragP->fr_type == rs_fill); |
1491 | append (&next_object_file_charP, fragP->fr_literal, (unsigned long) fragP->fr_fix); | |
1492 | fill_literal = fragP->fr_literal + fragP->fr_fix; | |
1493 | fill_size = fragP->fr_var; | |
1494 | know (fragP->fr_offset >= 0); | |
1495 | ||
1496 | for (count = fragP->fr_offset; count; count--) | |
1497 | { | |
1498 | append (&next_object_file_charP, fill_literal, (unsigned long) fill_size); | |
1499 | } /* for each */ | |
1500 | ||
1501 | } /* for each code frag. */ | |
1502 | ||
1503 | know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers))); | |
1504 | ||
1505 | /* | |
43ca9aa6 KR |
1506 | * Emit relocations. |
1507 | */ | |
6efd877d KR |
1508 | obj_emit_relocations (&next_object_file_charP, text_fix_root, (relax_addressT) 0); |
1509 | know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers) + H_GET_TEXT_RELOCATION_SIZE (&headers))); | |
fecd2382 | 1510 | #ifdef TC_I960 |
6efd877d | 1511 | /* Make addresses in data relocation directives relative to beginning of |
43ca9aa6 KR |
1512 | * first data fragment, not end of last text fragment: alignment of the |
1513 | * start of the data segment may place a gap between the segments. | |
1514 | */ | |
6efd877d | 1515 | obj_emit_relocations (&next_object_file_charP, data_fix_root, data0_frchainP->frch_root->fr_address); |
fecd2382 | 1516 | #else /* TC_I960 */ |
6efd877d | 1517 | obj_emit_relocations (&next_object_file_charP, data_fix_root, text_last_frag->fr_address); |
fecd2382 | 1518 | #endif /* TC_I960 */ |
6efd877d KR |
1519 | |
1520 | know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers) + H_GET_TEXT_RELOCATION_SIZE (&headers) + H_GET_DATA_RELOCATION_SIZE (&headers))); | |
1521 | ||
1522 | /* | |
43ca9aa6 KR |
1523 | * Emit line number entries. |
1524 | */ | |
6efd877d KR |
1525 | OBJ_EMIT_LINENO (&next_object_file_charP, lineno_rootP, the_object_file); |
1526 | know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers) + H_GET_TEXT_RELOCATION_SIZE (&headers) + H_GET_DATA_RELOCATION_SIZE (&headers) + H_GET_LINENO_SIZE (&headers))); | |
1527 | ||
1528 | /* | |
3eb802b5 ILT |
1529 | * Emit symbols. |
1530 | */ | |
6efd877d KR |
1531 | obj_emit_symbols (&next_object_file_charP, symbol_rootP); |
1532 | know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers) + H_GET_TEXT_RELOCATION_SIZE (&headers) + H_GET_DATA_RELOCATION_SIZE (&headers) + H_GET_LINENO_SIZE (&headers) + H_GET_SYMBOL_TABLE_SIZE (&headers))); | |
1533 | ||
1534 | /* | |
3eb802b5 ILT |
1535 | * Emit strings. |
1536 | */ | |
6efd877d KR |
1537 | |
1538 | if (string_byte_count > 0) | |
1539 | { | |
1540 | obj_emit_strings (&next_object_file_charP); | |
1541 | } /* only if we have a string table */ | |
1542 | ||
45432836 | 1543 | #ifdef BFD_HEADERS |
6efd877d KR |
1544 | bfd_seek (stdoutput, 0, 0); |
1545 | bfd_write (the_object_file, 1, object_file_size, stdoutput); | |
45432836 | 1546 | #else |
6efd877d KR |
1547 | |
1548 | /* Write the data to the file */ | |
1549 | output_file_append (the_object_file, object_file_size, out_file_name); | |
3f81f3cf | 1550 | free (the_object_file); |
45432836 | 1551 | #endif |
6efd877d | 1552 | } /* non vms output */ |
3f81f3cf | 1553 | #else /* OBJ_VMS */ |
6efd877d | 1554 | /* |
3eb802b5 ILT |
1555 | * Now do the VMS-dependent part of writing the object file |
1556 | */ | |
8e86815b | 1557 | vms_write_object_file (H_GET_TEXT_SIZE (&headers), |
85825401 ILT |
1558 | H_GET_DATA_SIZE (&headers), |
1559 | H_GET_BSS_SIZE (&headers), | |
3eb802b5 | 1560 | text_frag_root, data_frag_root); |
3f81f3cf | 1561 | #endif /* OBJ_VMS */ |
43ca9aa6 | 1562 | #else /* BFD_ASSEMBLER */ |
6efd877d | 1563 | |
4acf8c78 KR |
1564 | /* Resolve symbol values. This needs to be done before processing |
1565 | the relocations. */ | |
1566 | if (symbol_rootP) | |
1567 | { | |
1568 | symbolS *symp; | |
1569 | ||
1570 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
1571 | if (!symp->sy_resolved) | |
1572 | resolve_symbol_value (symp); | |
1573 | } | |
1574 | ||
c151fd1e KR |
1575 | PROGRESS (1); |
1576 | ||
d5364748 KR |
1577 | bfd_map_over_sections (stdoutput, adjust_reloc_syms, (char *)0); |
1578 | ||
43ca9aa6 KR |
1579 | /* Set up symbol table, and write it out. */ |
1580 | if (symbol_rootP) | |
1581 | { | |
43ca9aa6 KR |
1582 | symbolS *symp; |
1583 | ||
1584 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
1585 | { | |
262b22cd | 1586 | int punt = 0; |
c151fd1e KR |
1587 | const char *name; |
1588 | ||
1356d77d ILT |
1589 | if (symp->sy_mri_common) |
1590 | { | |
1591 | if (S_IS_EXTERNAL (symp)) | |
1592 | as_bad ("%s: global symbols not supported in common sections", | |
1593 | S_GET_NAME (symp)); | |
1594 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
1595 | continue; | |
1596 | } | |
1597 | ||
c151fd1e KR |
1598 | name = S_GET_NAME (symp); |
1599 | if (name) | |
1600 | { | |
a2a5a4fa | 1601 | const char *name2 = decode_local_label_name ((char *)S_GET_NAME (symp)); |
c151fd1e KR |
1602 | /* They only differ if `name' is a fb or dollar local |
1603 | label name. */ | |
1604 | if (name2 != name && ! S_IS_DEFINED (symp)) | |
1605 | as_bad ("local label %s is not defined", name2); | |
1606 | } | |
262b22cd | 1607 | |
4acf8c78 KR |
1608 | /* Do it again, because adjust_reloc_syms might introduce |
1609 | more symbols. They'll probably only be section symbols, | |
1610 | but they'll still need to have the values computed. */ | |
5868b1fe ILT |
1611 | if (! symp->sy_resolved) |
1612 | { | |
5ac34ac3 | 1613 | if (symp->sy_value.X_op == O_constant) |
5868b1fe ILT |
1614 | { |
1615 | /* This is the normal case; skip the call. */ | |
1616 | S_SET_VALUE (symp, | |
1617 | (S_GET_VALUE (symp) | |
1618 | + symp->sy_frag->fr_address)); | |
1619 | symp->sy_resolved = 1; | |
1620 | } | |
1621 | else | |
1622 | resolve_symbol_value (symp); | |
1623 | } | |
1624 | ||
43ca9aa6 KR |
1625 | /* So far, common symbols have been treated like undefined symbols. |
1626 | Put them in the common section now. */ | |
1627 | if (S_IS_DEFINED (symp) == 0 | |
1628 | && S_GET_VALUE (symp) != 0) | |
d9d6f094 | 1629 | S_SET_SEGMENT (symp, bfd_com_section_ptr); |
43ca9aa6 | 1630 | #if 0 |
5868b1fe | 1631 | printf ("symbol `%s'\n\t@%x: value=%d flags=%x seg=%s\n", |
43ca9aa6 KR |
1632 | S_GET_NAME (symp), symp, |
1633 | S_GET_VALUE (symp), | |
d5364748 | 1634 | symp->bsym->flags, |
43ca9aa6 KR |
1635 | segment_name (symp->bsym->section)); |
1636 | #endif | |
335d35c8 | 1637 | |
80aab579 | 1638 | #ifdef obj_frob_symbol |
262b22cd | 1639 | obj_frob_symbol (symp, punt); |
43ca9aa6 KR |
1640 | #endif |
1641 | #ifdef tc_frob_symbol | |
262b22cd | 1642 | if (! punt || symp->sy_used_in_reloc) |
335d35c8 | 1643 | tc_frob_symbol (symp, punt); |
43ca9aa6 | 1644 | #endif |
80aab579 | 1645 | |
262b22cd ILT |
1646 | /* If we don't want to keep this symbol, splice it out of |
1647 | the chain now. If EMIT_SECTION_SYMBOLS is 0, we never | |
1648 | want section symbols. Otherwise, we skip local symbols | |
1649 | and symbols that the frob_symbol macros told us to punt, | |
1650 | but we keep such symbols if they are used in relocs. */ | |
1651 | if ((! EMIT_SECTION_SYMBOLS | |
1652 | && (symp->bsym->flags & BSF_SECTION_SYM) != 0) | |
1cf7548e KR |
1653 | /* Note that S_IS_EXTERN and S_IS_LOCAL are not always |
1654 | opposites. Sometimes the former checks flags and the | |
1655 | latter examines the name... */ | |
1656 | || (!S_IS_EXTERN (symp) | |
1657 | && (S_IS_LOCAL (symp) || punt) | |
262b22cd | 1658 | && ! symp->sy_used_in_reloc)) |
43ca9aa6 | 1659 | { |
1cf7548e KR |
1660 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); |
1661 | /* After symbol_remove, symbol_next(symp) still returns | |
1662 | the one that came after it in the chain. So we don't | |
1663 | need to do any extra cleanup work here. */ | |
262b22cd | 1664 | |
262b22cd | 1665 | continue; |
43ca9aa6 | 1666 | } |
85051959 | 1667 | |
80aab579 ILT |
1668 | /* Make sure we really got a value for the symbol. */ |
1669 | if (! symp->sy_resolved) | |
1670 | { | |
1671 | as_bad ("can't resolve value for symbol \"%s\"", | |
1672 | S_GET_NAME (symp)); | |
1673 | symp->sy_resolved = 1; | |
1674 | } | |
1675 | ||
85051959 ILT |
1676 | /* Set the value into the BFD symbol. Up til now the value |
1677 | has only been kept in the gas symbolS struct. */ | |
1678 | symp->bsym->value = S_GET_VALUE (symp); | |
43ca9aa6 KR |
1679 | } |
1680 | } | |
1681 | ||
c151fd1e KR |
1682 | PROGRESS (1); |
1683 | ||
def66e24 DM |
1684 | /* Now do any format-specific adjustments to the symbol table, such |
1685 | as adding file symbols. */ | |
1686 | #ifdef obj_adjust_symtab | |
1687 | obj_adjust_symtab (); | |
1688 | #endif | |
1689 | ||
1690 | /* Now that all the sizes are known, and contents correct, we can | |
1691 | start writing to the file. */ | |
1692 | set_symtab (); | |
1693 | ||
1cf7548e KR |
1694 | /* If *_frob_file changes the symbol value at this point, it is |
1695 | responsible for moving the changed value into symp->bsym->value | |
1696 | as well. Hopefully all symbol value changing can be done in | |
1697 | *_frob_symbol. */ | |
c79e67a3 KR |
1698 | #ifdef tc_frob_file |
1699 | tc_frob_file (); | |
1700 | #endif | |
f2f7d044 ILT |
1701 | #ifdef obj_frob_file |
1702 | obj_frob_file (); | |
1703 | #endif | |
1704 | ||
8d6c34a1 KR |
1705 | bfd_map_over_sections (stdoutput, write_relocs, (char *) 0); |
1706 | ||
43ca9aa6 | 1707 | bfd_map_over_sections (stdoutput, write_contents, (char *) 0); |
43ca9aa6 KR |
1708 | #endif /* BFD_ASSEMBLER */ |
1709 | } | |
d5364748 | 1710 | #endif /* ! BFD */ |
fecd2382 RP |
1711 | |
1712 | /* | |
1713 | * relax_segment() | |
1714 | * | |
1715 | * Now we have a segment, not a crowd of sub-segments, we can make fr_address | |
1716 | * values. | |
1717 | * | |
1718 | * Relax the frags. | |
1719 | * | |
1720 | * After this, all frags in this segment have addresses that are correct | |
1721 | * within the segment. Since segments live in different file addresses, | |
1722 | * these frag addresses may not be the same as final object-file addresses. | |
1723 | */ | |
45432836 | 1724 | |
a58374d7 ILT |
1725 | #ifndef md_relax_frag |
1726 | ||
d5364748 | 1727 | /* Subroutines of relax_segment. */ |
43ca9aa6 KR |
1728 | static int |
1729 | is_dnrange (f1, f2) | |
1730 | struct frag *f1; | |
1731 | struct frag *f2; | |
1732 | { | |
1733 | for (; f1; f1 = f1->fr_next) | |
1734 | if (f1->fr_next == f2) | |
1735 | return 1; | |
1736 | return 0; | |
1737 | } | |
1738 | ||
a58374d7 ILT |
1739 | #endif /* ! defined (md_relax_frag) */ |
1740 | ||
43ca9aa6 | 1741 | /* Relax_align. Advance location counter to next address that has 'alignment' |
d5364748 | 1742 | lowest order bits all 0s, return size of adjustment made. */ |
43ca9aa6 KR |
1743 | static relax_addressT |
1744 | relax_align (address, alignment) | |
1745 | register relax_addressT address; /* Address now. */ | |
d5364748 | 1746 | register int alignment; /* Alignment (binary). */ |
43ca9aa6 KR |
1747 | { |
1748 | relax_addressT mask; | |
1749 | relax_addressT new_address; | |
1750 | ||
1751 | mask = ~((~0) << alignment); | |
1752 | new_address = (address + mask) & (~mask); | |
d4083e29 | 1753 | #ifdef LINKER_RELAXING_SHRINKS_ONLY |
43ca9aa6 KR |
1754 | if (linkrelax) |
1755 | /* We must provide lots of padding, so the linker can discard it | |
1756 | when needed. The linker will not add extra space, ever. */ | |
1757 | new_address += (1 << alignment); | |
d4083e29 | 1758 | #endif |
43ca9aa6 KR |
1759 | return (new_address - address); |
1760 | } | |
45432836 | 1761 | |
6efd877d KR |
1762 | void |
1763 | relax_segment (segment_frag_root, segment) | |
1764 | struct frag *segment_frag_root; | |
43ca9aa6 | 1765 | segT segment; |
fecd2382 | 1766 | { |
6efd877d KR |
1767 | register struct frag *fragP; |
1768 | register relax_addressT address; | |
43ca9aa6 | 1769 | #if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER) |
6efd877d | 1770 | know (segment == SEG_DATA || segment == SEG_TEXT || segment == SEG_BSS); |
45432836 | 1771 | #endif |
6efd877d KR |
1772 | /* In case md_estimate_size_before_relax() wants to make fixSs. */ |
1773 | subseg_change (segment, 0); | |
1774 | ||
7f2cb270 KR |
1775 | /* For each frag in segment: count and store (a 1st guess of) |
1776 | fr_address. */ | |
6efd877d KR |
1777 | address = 0; |
1778 | for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next) | |
1779 | { | |
1780 | fragP->fr_address = address; | |
1781 | address += fragP->fr_fix; | |
1782 | ||
1783 | switch (fragP->fr_type) | |
1784 | { | |
1785 | case rs_fill: | |
1786 | address += fragP->fr_offset * fragP->fr_var; | |
1787 | break; | |
1788 | ||
1789 | case rs_align: | |
cd3b81bd | 1790 | case rs_align_code: |
98c6bbbe KR |
1791 | { |
1792 | int offset = relax_align (address, (int) fragP->fr_offset); | |
1793 | if (offset % fragP->fr_var != 0) | |
1794 | { | |
262b22cd ILT |
1795 | as_bad ("alignment padding (%d bytes) not a multiple of %ld", |
1796 | offset, (long) fragP->fr_var); | |
98c6bbbe KR |
1797 | offset -= (offset % fragP->fr_var); |
1798 | } | |
1799 | address += offset; | |
1800 | } | |
6efd877d KR |
1801 | break; |
1802 | ||
1803 | case rs_org: | |
cd3b81bd | 1804 | case rs_space: |
7f2cb270 | 1805 | /* Assume .org is nugatory. It will grow with 1st relax. */ |
6efd877d KR |
1806 | break; |
1807 | ||
1808 | case rs_machine_dependent: | |
1809 | address += md_estimate_size_before_relax (fragP, segment); | |
1810 | break; | |
1811 | ||
fecd2382 | 1812 | #ifndef WORKING_DOT_WORD |
6efd877d KR |
1813 | /* Broken words don't concern us yet */ |
1814 | case rs_broken_word: | |
1815 | break; | |
fecd2382 | 1816 | #endif |
6efd877d KR |
1817 | |
1818 | default: | |
1819 | BAD_CASE (fragP->fr_type); | |
1820 | break; | |
1821 | } /* switch(fr_type) */ | |
1822 | } /* for each frag in the segment */ | |
1823 | ||
7f2cb270 | 1824 | /* Do relax(). */ |
6efd877d | 1825 | { |
7f2cb270 | 1826 | long stretch; /* May be any size, 0 or negative. */ |
6efd877d KR |
1827 | /* Cumulative number of addresses we have */ |
1828 | /* relaxed this pass. */ | |
1829 | /* We may have relaxed more than one address. */ | |
7f2cb270 KR |
1830 | long stretched; /* Have we stretched on this pass? */ |
1831 | /* This is 'cuz stretch may be zero, when, in fact some piece of code | |
1832 | grew, and another shrank. If a branch instruction doesn't fit anymore, | |
1833 | we could be scrod. */ | |
6efd877d KR |
1834 | |
1835 | do | |
1836 | { | |
1837 | stretch = stretched = 0; | |
1838 | for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next) | |
1839 | { | |
7f2cb270 KR |
1840 | long growth = 0; |
1841 | unsigned long was_address; | |
1842 | long offset; | |
1843 | symbolS *symbolP; | |
1844 | long target; | |
1845 | long after; | |
6efd877d KR |
1846 | |
1847 | was_address = fragP->fr_address; | |
1848 | address = fragP->fr_address += stretch; | |
1849 | symbolP = fragP->fr_symbol; | |
1850 | offset = fragP->fr_offset; | |
6efd877d KR |
1851 | |
1852 | switch (fragP->fr_type) | |
1853 | { | |
1854 | case rs_fill: /* .fill never relaxes. */ | |
1855 | growth = 0; | |
1856 | break; | |
1857 | ||
fecd2382 | 1858 | #ifndef WORKING_DOT_WORD |
6efd877d | 1859 | /* JF: This is RMS's idea. I do *NOT* want to be blamed |
7f2cb270 KR |
1860 | for it I do not want to write it. I do not want to have |
1861 | anything to do with it. This is not the proper way to | |
1862 | implement this misfeature. */ | |
6efd877d KR |
1863 | case rs_broken_word: |
1864 | { | |
1865 | struct broken_word *lie; | |
1866 | struct broken_word *untruth; | |
6efd877d KR |
1867 | |
1868 | /* Yes this is ugly (storing the broken_word pointer | |
7f2cb270 KR |
1869 | in the symbol slot). Still, this whole chunk of |
1870 | code is ugly, and I don't feel like doing anything | |
1871 | about it. Think of it as stubbornness in action. */ | |
6efd877d KR |
1872 | growth = 0; |
1873 | for (lie = (struct broken_word *) (fragP->fr_symbol); | |
1874 | lie && lie->dispfrag == fragP; | |
1875 | lie = lie->next_broken_word) | |
1876 | { | |
1877 | ||
1878 | if (lie->added) | |
1879 | continue; | |
1880 | ||
7f2cb270 KR |
1881 | offset = (lie->add->sy_frag->fr_address |
1882 | + S_GET_VALUE (lie->add) | |
1883 | + lie->addnum | |
1884 | - (lie->sub->sy_frag->fr_address | |
1885 | + S_GET_VALUE (lie->sub))); | |
6efd877d KR |
1886 | if (offset <= -32768 || offset >= 32767) |
1887 | { | |
def66e24 | 1888 | if (flag_warn_displacement) |
d5364748 KR |
1889 | { |
1890 | char buf[50]; | |
80aab579 | 1891 | sprint_value (buf, (addressT) lie->addnum); |
d5364748 KR |
1892 | as_warn (".word %s-%s+%s didn't fit", |
1893 | S_GET_NAME (lie->add), | |
1894 | S_GET_NAME (lie->sub), | |
1895 | buf); | |
1896 | } | |
6efd877d KR |
1897 | lie->added = 1; |
1898 | if (fragP->fr_subtype == 0) | |
1899 | { | |
1900 | fragP->fr_subtype++; | |
1901 | growth += md_short_jump_size; | |
1902 | } | |
7f2cb270 KR |
1903 | for (untruth = lie->next_broken_word; |
1904 | untruth && untruth->dispfrag == lie->dispfrag; | |
1905 | untruth = untruth->next_broken_word) | |
6efd877d KR |
1906 | if ((untruth->add->sy_frag == lie->add->sy_frag) |
1907 | && S_GET_VALUE (untruth->add) == S_GET_VALUE (lie->add)) | |
1908 | { | |
1909 | untruth->added = 2; | |
1910 | untruth->use_jump = lie; | |
1911 | } | |
1912 | growth += md_long_jump_size; | |
1913 | } | |
1914 | } | |
1915 | ||
1916 | break; | |
1917 | } /* case rs_broken_word */ | |
fecd2382 | 1918 | #endif |
6efd877d | 1919 | case rs_align: |
cd3b81bd | 1920 | case rs_align_code: |
43ca9aa6 KR |
1921 | growth = (relax_align ((relax_addressT) (address |
1922 | + fragP->fr_fix), | |
d5364748 | 1923 | (int) offset) |
43ca9aa6 KR |
1924 | - relax_align ((relax_addressT) (was_address |
1925 | + fragP->fr_fix), | |
d5364748 | 1926 | (int) offset)); |
6efd877d KR |
1927 | break; |
1928 | ||
1929 | case rs_org: | |
1930 | target = offset; | |
1931 | ||
1932 | if (symbolP) | |
1933 | { | |
43ca9aa6 KR |
1934 | #if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER) |
1935 | know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE) | |
1936 | || (S_GET_SEGMENT (symbolP) == SEG_DATA) | |
1937 | || (S_GET_SEGMENT (symbolP) == SEG_TEXT) | |
1938 | || S_GET_SEGMENT (symbolP) == SEG_BSS); | |
6efd877d | 1939 | know (symbolP->sy_frag); |
43ca9aa6 KR |
1940 | know (!(S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE) |
1941 | || (symbolP->sy_frag == &zero_address_frag)); | |
45432836 | 1942 | #endif |
6efd877d KR |
1943 | target += S_GET_VALUE (symbolP) |
1944 | + symbolP->sy_frag->fr_address; | |
1945 | } /* if we have a symbol */ | |
1946 | ||
1947 | know (fragP->fr_next); | |
1948 | after = fragP->fr_next->fr_address; | |
c151fd1e KR |
1949 | growth = target - after; |
1950 | if (growth < 0) | |
1951 | { | |
1952 | /* Growth may be negative, but variable part of frag | |
1953 | cannot have fewer than 0 chars. That is, we can't | |
1954 | .org backwards. */ | |
1955 | as_bad ("attempt to .org backwards ignored"); | |
1956 | growth = 0; | |
1957 | } | |
6efd877d KR |
1958 | |
1959 | growth -= stretch; /* This is an absolute growth factor */ | |
1960 | break; | |
1961 | ||
cd3b81bd KR |
1962 | case rs_space: |
1963 | if (symbolP) | |
1964 | { | |
1965 | growth = S_GET_VALUE (symbolP); | |
1966 | if (symbolP->sy_frag != &zero_address_frag) | |
1967 | as_bad (".space specifies non-absolute value"); | |
1968 | fragP->fr_symbol = 0; | |
1969 | if (growth < 0) | |
1970 | { | |
1971 | as_warn (".space or .fill with negative value, ignored"); | |
1972 | growth = 0; | |
1973 | } | |
1974 | } | |
1975 | else | |
1976 | growth = 0; | |
1977 | break; | |
1978 | ||
6efd877d | 1979 | case rs_machine_dependent: |
a58374d7 ILT |
1980 | #ifdef md_relax_frag |
1981 | growth = md_relax_frag (fragP, stretch); | |
1982 | #else | |
c151fd1e | 1983 | #ifdef TC_GENERIC_RELAX_TABLE |
a58374d7 ILT |
1984 | /* The default way to relax a frag is to look through |
1985 | md_relax_table. */ | |
6efd877d | 1986 | { |
7f2cb270 KR |
1987 | const relax_typeS *this_type; |
1988 | const relax_typeS *start_type; | |
1989 | relax_substateT next_state; | |
1990 | relax_substateT this_state; | |
80aab579 | 1991 | long aim; |
c151fd1e | 1992 | const relax_typeS *table = TC_GENERIC_RELAX_TABLE; |
6efd877d | 1993 | |
7f2cb270 | 1994 | this_state = fragP->fr_subtype; |
c151fd1e | 1995 | start_type = this_type = table + this_state; |
6efd877d KR |
1996 | target = offset; |
1997 | ||
1998 | if (symbolP) | |
1999 | { | |
80aab579 | 2000 | #ifndef DIFF_EXPR_OK |
43ca9aa6 KR |
2001 | #if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER) |
2002 | know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE) | |
2003 | || (S_GET_SEGMENT (symbolP) == SEG_DATA) | |
2004 | || (S_GET_SEGMENT (symbolP) == SEG_BSS) | |
2005 | || (S_GET_SEGMENT (symbolP) == SEG_TEXT)); | |
45432836 | 2006 | #endif |
6efd877d | 2007 | know (symbolP->sy_frag); |
80aab579 | 2008 | #endif |
43ca9aa6 KR |
2009 | know (!(S_GET_SEGMENT (symbolP) == absolute_section) |
2010 | || symbolP->sy_frag == &zero_address_frag); | |
6efd877d KR |
2011 | target += |
2012 | S_GET_VALUE (symbolP) | |
2013 | + symbolP->sy_frag->fr_address; | |
2014 | ||
2015 | /* If frag has yet to be reached on this pass, | |
7f2cb270 KR |
2016 | assume it will move by STRETCH just as we did. |
2017 | If this is not so, it will be because some frag | |
d5364748 KR |
2018 | between grows, and that will force another pass. |
2019 | ||
2020 | Beware zero-length frags. | |
2021 | ||
2022 | There should be a faster way to do this. */ | |
6efd877d KR |
2023 | |
2024 | if (symbolP->sy_frag->fr_address >= was_address | |
2025 | && is_dnrange (fragP, symbolP->sy_frag)) | |
2026 | { | |
2027 | target += stretch; | |
7f2cb270 | 2028 | } |
d5364748 | 2029 | } |
6efd877d KR |
2030 | |
2031 | aim = target - address - fragP->fr_fix; | |
d9d6f094 KR |
2032 | #ifdef TC_PCREL_ADJUST |
2033 | /* Currently only the ns32k family needs this */ | |
2034 | aim += TC_PCREL_ADJUST(fragP); | |
2035 | #else | |
2036 | /* This machine doesn't want to use pcrel_adjust. | |
2037 | In that case, pcrel_adjust should be zero. */ | |
2038 | assert (fragP->fr_pcrel_adjust == 0); | |
d5364748 | 2039 | #endif |
6efd877d KR |
2040 | |
2041 | if (aim < 0) | |
2042 | { | |
2043 | /* Look backwards. */ | |
2044 | for (next_state = this_type->rlx_more; next_state;) | |
7f2cb270 KR |
2045 | if (aim >= this_type->rlx_backward) |
2046 | next_state = 0; | |
2047 | else | |
2048 | { | |
2049 | /* Grow to next state. */ | |
2050 | this_state = next_state; | |
c151fd1e | 2051 | this_type = table + this_state; |
7f2cb270 KR |
2052 | next_state = this_type->rlx_more; |
2053 | } | |
6efd877d KR |
2054 | } |
2055 | else | |
2056 | { | |
a39116f1 | 2057 | #ifdef M68K_AIM_KLUDGE |
6efd877d | 2058 | M68K_AIM_KLUDGE (aim, this_state, this_type); |
fecd2382 | 2059 | #endif |
6efd877d KR |
2060 | /* Look forwards. */ |
2061 | for (next_state = this_type->rlx_more; next_state;) | |
7f2cb270 KR |
2062 | if (aim <= this_type->rlx_forward) |
2063 | next_state = 0; | |
2064 | else | |
2065 | { | |
2066 | /* Grow to next state. */ | |
2067 | this_state = next_state; | |
c151fd1e | 2068 | this_type = table + this_state; |
7f2cb270 KR |
2069 | next_state = this_type->rlx_more; |
2070 | } | |
6efd877d KR |
2071 | } |
2072 | ||
7f2cb270 KR |
2073 | growth = this_type->rlx_length - start_type->rlx_length; |
2074 | if (growth != 0) | |
6efd877d | 2075 | fragP->fr_subtype = this_state; |
7f2cb270 | 2076 | } |
c151fd1e | 2077 | #endif /* TC_GENERIC_RELAX_TABLE */ |
a58374d7 | 2078 | #endif |
7f2cb270 | 2079 | break; |
6efd877d KR |
2080 | |
2081 | default: | |
2082 | BAD_CASE (fragP->fr_type); | |
2083 | break; | |
2084 | } | |
2085 | if (growth) | |
2086 | { | |
2087 | stretch += growth; | |
2088 | stretched++; | |
2089 | } | |
2090 | } /* For each frag in the segment. */ | |
2091 | } | |
2092 | while (stretched); /* Until nothing further to relax. */ | |
2093 | } /* do_relax */ | |
2094 | ||
2095 | /* | |
7f2cb270 KR |
2096 | * We now have valid fr_address'es for each frag. |
2097 | */ | |
6efd877d KR |
2098 | |
2099 | /* | |
7f2cb270 KR |
2100 | * All fr_address's are correct, relative to their own segment. |
2101 | * We have made all the fixS we will ever make. | |
2102 | */ | |
6efd877d | 2103 | } /* relax_segment() */ |
fecd2382 | 2104 | |
3f81f3cf | 2105 | #if defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS)) |
80aab579 | 2106 | |
d9d6f094 KR |
2107 | #ifndef TC_RELOC_RTSYM_LOC_FIXUP |
2108 | #define TC_RELOC_RTSYM_LOC_FIXUP(X) (1) | |
2109 | #endif | |
2110 | ||
fecd2382 | 2111 | /* fixup_segment() |
6efd877d | 2112 | |
fecd2382 RP |
2113 | Go through all the fixS's in a segment and see which ones can be |
2114 | handled now. (These consist of fixS where we have since discovered | |
2115 | the value of a symbol, or the address of the frag involved.) | |
2116 | For each one, call md_apply_fix to put the fix into the frag data. | |
6efd877d | 2117 | |
fecd2382 RP |
2118 | Result is a count of how many relocation structs will be needed to |
2119 | handle the remaining fixS's that we couldn't completely handle here. | |
2120 | These will be output later by emit_relocations(). */ | |
2121 | ||
09952cd9 | 2122 | static long |
6efd877d | 2123 | fixup_segment (fixP, this_segment_type) |
09952cd9 | 2124 | register fixS *fixP; |
6efd877d | 2125 | segT this_segment_type; /* N_TYPE bits for segment. */ |
fecd2382 | 2126 | { |
f5c32424 KR |
2127 | long seg_reloc_count = 0; |
2128 | symbolS *add_symbolP; | |
2129 | symbolS *sub_symbolP; | |
d5364748 | 2130 | valueT add_number; |
f5c32424 KR |
2131 | int size; |
2132 | char *place; | |
2133 | long where; | |
a55774a1 | 2134 | int pcrel, plt; |
f5c32424 KR |
2135 | fragS *fragP; |
2136 | segT add_symbol_segment = absolute_section; | |
2137 | ||
2138 | /* If the linker is doing the relaxing, we must not do any fixups. | |
2139 | ||
2140 | Well, strictly speaking that's not true -- we could do any that are | |
2141 | PC-relative and don't cross regions that could change size. And for the | |
2142 | i960 (the only machine for which we've got a relaxing linker right now), | |
2143 | we might be able to turn callx/callj into bal anyways in cases where we | |
2144 | know the maximum displacement. */ | |
6efd877d | 2145 | if (linkrelax) |
f5c32424 KR |
2146 | { |
2147 | for (; fixP; fixP = fixP->fx_next) | |
2148 | seg_reloc_count++; | |
2149 | TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count); | |
2150 | return seg_reloc_count; | |
2151 | } | |
6efd877d | 2152 | |
f5c32424 KR |
2153 | for (; fixP; fixP = fixP->fx_next) |
2154 | { | |
a55774a1 KR |
2155 | #ifdef DEBUG5 |
2156 | fprintf (stderr, "\nprocessing fixup:\n"); | |
2157 | print_fixup (fixP); | |
2158 | #endif | |
2159 | ||
f5c32424 KR |
2160 | fragP = fixP->fx_frag; |
2161 | know (fragP); | |
2162 | where = fixP->fx_where; | |
2163 | place = fragP->fr_literal + where; | |
2164 | size = fixP->fx_size; | |
2165 | add_symbolP = fixP->fx_addsy; | |
2166 | #ifdef TC_VALIDATE_FIX | |
2167 | TC_VALIDATE_FIX (fixP, this_segment_type, skip); | |
fecd2382 | 2168 | #endif |
f5c32424 KR |
2169 | sub_symbolP = fixP->fx_subsy; |
2170 | add_number = fixP->fx_offset; | |
2171 | pcrel = fixP->fx_pcrel; | |
a55774a1 KR |
2172 | plt = fixP->fx_plt; |
2173 | ||
e120d9fb ILT |
2174 | if (add_symbolP != NULL |
2175 | && add_symbolP->sy_mri_common) | |
1356d77d ILT |
2176 | { |
2177 | know (add_symbolP->sy_value.X_op == O_symbol); | |
2178 | add_number += S_GET_VALUE (add_symbolP); | |
2179 | fixP->fx_offset = add_number; | |
2180 | add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol; | |
2181 | } | |
2182 | ||
f5c32424 KR |
2183 | if (add_symbolP) |
2184 | add_symbol_segment = S_GET_SEGMENT (add_symbolP); | |
2185 | ||
2186 | if (sub_symbolP) | |
2187 | { | |
f7da4a99 | 2188 | resolve_symbol_value (sub_symbolP); |
f5c32424 KR |
2189 | if (!add_symbolP) |
2190 | { | |
2191 | /* Its just -sym */ | |
2192 | if (S_GET_SEGMENT (sub_symbolP) == absolute_section) | |
6efd877d | 2193 | add_number -= S_GET_VALUE (sub_symbolP); |
f5c32424 KR |
2194 | else if (pcrel |
2195 | && S_GET_SEGMENT (sub_symbolP) == this_segment_type) | |
2196 | { | |
2197 | /* Should try converting to a constant. */ | |
2198 | goto bad_sub_reloc; | |
2199 | } | |
2200 | else | |
2201 | bad_sub_reloc: | |
741f4d66 KR |
2202 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2203 | "Negative of non-absolute symbol %s", | |
2204 | S_GET_NAME (sub_symbolP)); | |
f5c32424 KR |
2205 | } |
2206 | else if ((S_GET_SEGMENT (sub_symbolP) == add_symbol_segment) | |
2207 | && (SEG_NORMAL (add_symbol_segment) | |
2208 | || (add_symbol_segment == absolute_section))) | |
2209 | { | |
2210 | /* Difference of 2 symbols from same segment. | |
2211 | Can't make difference of 2 undefineds: 'value' means | |
2212 | something different for N_UNDF. */ | |
fecd2382 | 2213 | #ifdef TC_I960 |
f5c32424 KR |
2214 | /* Makes no sense to use the difference of 2 arbitrary symbols |
2215 | as the target of a call instruction. */ | |
2216 | if (fixP->fx_tcbit) | |
741f4d66 KR |
2217 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2218 | "callj to difference of 2 symbols"); | |
6efd877d | 2219 | #endif /* TC_I960 */ |
f5c32424 KR |
2220 | add_number += S_GET_VALUE (add_symbolP) - |
2221 | S_GET_VALUE (sub_symbolP); | |
6efd877d | 2222 | |
f5c32424 | 2223 | add_symbolP = NULL; |
c151fd1e | 2224 | pcrel = 0; /* No further pcrel processing. */ |
335d35c8 | 2225 | |
f5c32424 KR |
2226 | /* Let the target machine make the final determination |
2227 | as to whether or not a relocation will be needed to | |
2228 | handle this fixup. */ | |
2229 | if (!TC_FORCE_RELOCATION (fixP)) | |
98c6bbbe | 2230 | { |
c151fd1e | 2231 | fixP->fx_pcrel = 0; |
98c6bbbe KR |
2232 | fixP->fx_addsy = NULL; |
2233 | } | |
f5c32424 KR |
2234 | } |
2235 | else | |
2236 | { | |
2237 | /* Different segments in subtraction. */ | |
2238 | know (!(S_IS_EXTERNAL (sub_symbolP) | |
2239 | && (S_GET_SEGMENT (sub_symbolP) == absolute_section))); | |
2240 | ||
2241 | if ((S_GET_SEGMENT (sub_symbolP) == absolute_section)) | |
2242 | add_number -= S_GET_VALUE (sub_symbolP); | |
6efd877d | 2243 | |
80aab579 | 2244 | #ifdef DIFF_EXPR_OK |
f5c32424 KR |
2245 | else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type |
2246 | #if 0 /* Do this even if it's already described as pc-relative. For example, | |
2247 | on the m68k, an operand of "pc@(foo-.-2)" should address "foo" in a | |
2248 | pc-relative mode. */ | |
2249 | && pcrel | |
0f894895 | 2250 | #endif |
f5c32424 KR |
2251 | ) |
2252 | { | |
2253 | /* Make it pc-relative. */ | |
2254 | add_number += (md_pcrel_from (fixP) | |
2255 | - S_GET_VALUE (sub_symbolP)); | |
2256 | pcrel = 1; | |
2257 | fixP->fx_pcrel = 1; | |
2258 | sub_symbolP = 0; | |
2259 | fixP->fx_subsy = 0; | |
2260 | } | |
98c6bbbe | 2261 | #endif |
d4083e29 KR |
2262 | #ifdef UNDEFINED_DIFFERENCE_OK |
2263 | /* The PA needs this for PIC code generation. We basically | |
2264 | don't want to do anything if we have the difference of two | |
2265 | symbols at this point. */ | |
2266 | else if (1) | |
2267 | { | |
2268 | /* Leave it alone. */ | |
2269 | } | |
2270 | #endif | |
98c6bbbe KR |
2271 | #ifdef BFD_ASSEMBLER |
2272 | else if (fixP->fx_r_type == BFD_RELOC_GPREL32 | |
2273 | || fixP->fx_r_type == BFD_RELOC_GPREL16) | |
2274 | { | |
2275 | /* Leave it alone. */ | |
2276 | } | |
80aab579 | 2277 | #endif |
f5c32424 KR |
2278 | else |
2279 | { | |
2280 | char buf[50]; | |
2281 | sprint_value (buf, fragP->fr_address + where); | |
741f4d66 KR |
2282 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2283 | "Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %s.", | |
2284 | segment_name (S_GET_SEGMENT (sub_symbolP)), | |
2285 | S_GET_NAME (sub_symbolP), buf); | |
f5c32424 KR |
2286 | } |
2287 | } | |
2288 | } | |
6efd877d | 2289 | |
f5c32424 KR |
2290 | if (add_symbolP) |
2291 | { | |
a55774a1 | 2292 | if (add_symbol_segment == this_segment_type && pcrel && !plt |
5767cfb7 | 2293 | && TC_RELOC_RTSYM_LOC_FIXUP (fixP)) |
f5c32424 KR |
2294 | { |
2295 | /* | |
2296 | * This fixup was made when the symbol's segment was | |
2297 | * SEG_UNKNOWN, but it is now in the local segment. | |
2298 | * So we know how to do the address without relocation. | |
2299 | */ | |
fecd2382 | 2300 | #ifdef TC_I960 |
f5c32424 KR |
2301 | /* reloc_callj() may replace a 'call' with a 'calls' or a |
2302 | 'bal', in which cases it modifies *fixP as appropriate. | |
2303 | In the case of a 'calls', no further work is required, | |
2304 | and *fixP has been set up to make the rest of the code | |
2305 | below a no-op. */ | |
2306 | reloc_callj (fixP); | |
fecd2382 | 2307 | #endif /* TC_I960 */ |
6efd877d | 2308 | |
f5c32424 KR |
2309 | add_number += S_GET_VALUE (add_symbolP); |
2310 | add_number -= md_pcrel_from (fixP); | |
2311 | pcrel = 0; /* Lie. Don't want further pcrel processing. */ | |
2312 | ||
2313 | /* Let the target machine make the final determination | |
2314 | as to whether or not a relocation will be needed to | |
2315 | handle this fixup. */ | |
2316 | if (!TC_FORCE_RELOCATION (fixP)) | |
98c6bbbe KR |
2317 | { |
2318 | fixP->fx_pcrel = 0; | |
2319 | fixP->fx_addsy = NULL; | |
2320 | } | |
f5c32424 KR |
2321 | } |
2322 | else | |
2323 | { | |
2324 | if (add_symbol_segment == absolute_section) | |
2325 | { | |
fecd2382 | 2326 | #ifdef TC_I960 |
f5c32424 KR |
2327 | /* See comment about reloc_callj() above. */ |
2328 | reloc_callj (fixP); | |
fecd2382 | 2329 | #endif /* TC_I960 */ |
f5c32424 KR |
2330 | add_number += S_GET_VALUE (add_symbolP); |
2331 | ||
2332 | /* Let the target machine make the final determination | |
2333 | as to whether or not a relocation will be needed to | |
2334 | handle this fixup. */ | |
2335 | if (!TC_FORCE_RELOCATION (fixP)) | |
e67a0640 KR |
2336 | { |
2337 | fixP->fx_addsy = NULL; | |
2338 | add_symbolP = NULL; | |
2339 | } | |
f5c32424 KR |
2340 | } |
2341 | else if (add_symbol_segment == undefined_section | |
43ca9aa6 | 2342 | #ifdef BFD_ASSEMBLER |
f5c32424 | 2343 | || bfd_is_com_section (add_symbol_segment) |
43ca9aa6 | 2344 | #endif |
f5c32424 KR |
2345 | ) |
2346 | { | |
fecd2382 | 2347 | #ifdef TC_I960 |
f5c32424 KR |
2348 | if ((int) fixP->fx_bit_fixP == 13) |
2349 | { | |
2350 | /* This is a COBR instruction. They have only a | |
2351 | * 13-bit displacement and are only to be used | |
2352 | * for local branches: flag as error, don't generate | |
2353 | * relocation. | |
2354 | */ | |
741f4d66 KR |
2355 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2356 | "can't use COBR format with external label"); | |
98c6bbbe KR |
2357 | fixP->fx_addsy = NULL; |
2358 | fixP->fx_done = 1; | |
f5c32424 KR |
2359 | continue; |
2360 | } /* COBR */ | |
fecd2382 | 2361 | #endif /* TC_I960 */ |
f5c32424 | 2362 | |
fecd2382 | 2363 | #ifdef OBJ_COFF |
c593cf41 | 2364 | #ifdef TE_I386AIX |
f5c32424 KR |
2365 | if (S_IS_COMMON (add_symbolP)) |
2366 | add_number += S_GET_VALUE (add_symbolP); | |
c593cf41 | 2367 | #endif /* TE_I386AIX */ |
fecd2382 | 2368 | #endif /* OBJ_COFF */ |
f5c32424 KR |
2369 | ++seg_reloc_count; |
2370 | } | |
2371 | else | |
2372 | { | |
2373 | seg_reloc_count++; | |
a55774a1 | 2374 | #if !defined (TC_I386) || !(defined (OBJ_ELF) || defined (OBJ_COFF)) |
f5c32424 | 2375 | add_number += S_GET_VALUE (add_symbolP); |
a55774a1 | 2376 | #endif |
f5c32424 KR |
2377 | } |
2378 | } | |
2379 | } | |
6efd877d | 2380 | |
f5c32424 KR |
2381 | if (pcrel) |
2382 | { | |
2383 | add_number -= md_pcrel_from (fixP); | |
2384 | if (add_symbolP == 0) | |
2385 | { | |
1cf7548e | 2386 | #ifndef BFD_ASSEMBLER |
f5c32424 | 2387 | fixP->fx_addsy = &abs_symbol; |
1cf7548e KR |
2388 | #else |
2389 | fixP->fx_addsy = section_symbol (absolute_section); | |
2390 | #endif | |
2391 | fixP->fx_addsy->sy_used_in_reloc = 1; | |
f5c32424 | 2392 | ++seg_reloc_count; |
98c6bbbe KR |
2393 | } |
2394 | } | |
6efd877d | 2395 | |
c7d7eed0 | 2396 | if (!fixP->fx_bit_fixP && !fixP->fx_no_overflow && size > 0) |
f5c32424 KR |
2397 | { |
2398 | valueT mask = 0; | |
df44a852 | 2399 | if (size < sizeof (mask)) |
f5c32424 | 2400 | { |
df44a852 KR |
2401 | /* set all bits to one */ |
2402 | mask--; | |
2403 | /* Technically, combining these produces an undefined result | |
2404 | if size is sizeof (valueT), though I think these two | |
2405 | half-way operations should both be defined. And the | |
2406 | compiler should be able to combine them if it's valid on | |
2407 | the host architecture. */ | |
2408 | mask <<= size * 4; | |
2409 | mask <<= size * 4; | |
2410 | if ((add_number & mask) != 0 | |
2411 | && (add_number & mask) != mask) | |
2412 | { | |
2413 | char buf[50], buf2[50]; | |
2414 | sprint_value (buf, fragP->fr_address + where); | |
2415 | if (add_number > 1000) | |
2416 | sprint_value (buf2, add_number); | |
2417 | else | |
2418 | sprintf (buf2, "%ld", (long) add_number); | |
2419 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
2420 | "Value of %s too large for field of %d bytes at %s", | |
2421 | buf2, size, buf); | |
2422 | } /* generic error checking */ | |
2423 | } | |
f5c32424 KR |
2424 | #ifdef WARN_SIGNED_OVERFLOW_WORD |
2425 | /* Warn if a .word value is too large when treated as a signed | |
2426 | number. We already know it is not too negative. This is to | |
2427 | catch over-large switches generated by gcc on the 68k. */ | |
def66e24 | 2428 | if (!flag_signed_overflow_ok |
f5c32424 KR |
2429 | && size == 2 |
2430 | && add_number > 0x7fff) | |
2431 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
2432 | "Signed .word overflow; switch may be too large; %ld at 0x%lx", | |
2433 | (long) add_number, | |
2434 | (unsigned long) (fragP->fr_address + where)); | |
6efd877d | 2435 | #endif |
f5c32424 | 2436 | } /* not a bit fix */ |
6efd877d | 2437 | |
98c6bbbe KR |
2438 | if (!fixP->fx_done) |
2439 | { | |
3f81f3cf MM |
2440 | #ifdef MD_APPLY_FIX3 |
2441 | md_apply_fix3 (fixP, &add_number, this_segment_type); | |
2442 | #else | |
43ca9aa6 | 2443 | #ifdef BFD_ASSEMBLER |
98c6bbbe | 2444 | md_apply_fix (fixP, &add_number); |
43ca9aa6 | 2445 | #else |
98c6bbbe KR |
2446 | md_apply_fix (fixP, add_number); |
2447 | #endif | |
3f81f3cf | 2448 | #endif |
98c6bbbe KR |
2449 | |
2450 | #ifndef TC_HANDLES_FX_DONE | |
2451 | /* If the tc-* files haven't been converted, assume it's handling | |
2452 | it the old way, where a null fx_addsy means that the fix has | |
2453 | been applied completely, and no further work is needed. */ | |
2454 | if (fixP->fx_addsy == 0 && fixP->fx_pcrel == 0) | |
2455 | fixP->fx_done = 1; | |
43ca9aa6 | 2456 | #endif |
98c6bbbe KR |
2457 | } |
2458 | #ifdef TC_VALIDATE_FIX | |
a55774a1 KR |
2459 | skip: ; |
2460 | #endif | |
2461 | #ifdef DEBUG5 | |
2462 | fprintf (stderr, "result:\n"); | |
2463 | print_fixup (fixP); | |
98c6bbbe | 2464 | #endif |
f5c32424 | 2465 | } /* For each fixS in this segment. */ |
6efd877d | 2466 | |
f5c32424 KR |
2467 | TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count); |
2468 | return seg_reloc_count; | |
2469 | } | |
6efd877d | 2470 | |
3f81f3cf | 2471 | #endif /* defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS)) */ |
6efd877d | 2472 | |
f5c32424 KR |
2473 | void |
2474 | number_to_chars_bigendian (buf, val, n) | |
2475 | char *buf; | |
2476 | valueT val; | |
2477 | int n; | |
2478 | { | |
2479 | if (n > sizeof (val)|| n <= 0) | |
2480 | abort (); | |
2481 | while (n--) | |
2482 | { | |
2483 | buf[n] = val & 0xff; | |
2484 | val >>= 8; | |
2485 | } | |
d5364748 | 2486 | } |
fecd2382 | 2487 | |
f5c32424 KR |
2488 | void |
2489 | number_to_chars_littleendian (buf, val, n) | |
2490 | char *buf; | |
2491 | valueT val; | |
2492 | int n; | |
2493 | { | |
2494 | if (n > sizeof (val) || n <= 0) | |
2495 | abort (); | |
2496 | while (n--) | |
2497 | { | |
2498 | *buf++ = val & 0xff; | |
2499 | val >>= 8; | |
2500 | } | |
2501 | } | |
80aab579 | 2502 | |
4acf8c78 KR |
2503 | /* for debugging */ |
2504 | extern int indent_level; | |
b04bc423 | 2505 | extern void print_symbol_value_1 (); |
4acf8c78 KR |
2506 | |
2507 | void | |
2508 | print_fixup (fixp) | |
2509 | fixS *fixp; | |
2510 | { | |
2511 | indent_level = 1; | |
a55774a1 | 2512 | fprintf (stderr, "fix %lx %s:%d", (long) fixp, fixp->fx_file, fixp->fx_line); |
4acf8c78 KR |
2513 | if (fixp->fx_pcrel) |
2514 | fprintf (stderr, " pcrel"); | |
2515 | if (fixp->fx_pcrel_adjust) | |
2516 | fprintf (stderr, " pcrel_adjust=%d", fixp->fx_pcrel_adjust); | |
2517 | if (fixp->fx_im_disp) | |
2518 | { | |
2519 | #ifdef TC_NS32K | |
2520 | fprintf (stderr, " im_disp=%d", fixp->fx_im_disp); | |
2521 | #else | |
2522 | fprintf (stderr, " im_disp"); | |
2523 | #endif | |
2524 | } | |
2525 | if (fixp->fx_tcbit) | |
2526 | fprintf (stderr, " tcbit"); | |
2527 | if (fixp->fx_done) | |
2528 | fprintf (stderr, " done"); | |
a55774a1 KR |
2529 | fprintf (stderr, "\n size=%d frag=%lx where=%ld offset=%lx addnumber=%lx", |
2530 | fixp->fx_size, (long) fixp->fx_frag, (long) fixp->fx_where, | |
2531 | (long) fixp->fx_offset, (long) fixp->fx_addnumber); | |
9dc6c00f KR |
2532 | #ifdef BFD_ASSEMBLER |
2533 | fprintf (stderr, "\n %s (%d)", bfd_get_reloc_code_name (fixp->fx_r_type), | |
2534 | fixp->fx_r_type); | |
2535 | #else | |
a55774a1 | 2536 | #ifdef NEED_FX_R_TYPE |
9dc6c00f | 2537 | fprintf (stderr, " r_type=%d", fixp->fx_r_type); |
a55774a1 | 2538 | #endif |
9dc6c00f KR |
2539 | #endif |
2540 | if (fixp->fx_addsy) | |
2541 | { | |
a55774a1 | 2542 | fprintf (stderr, "\n +<"); |
9dc6c00f KR |
2543 | print_symbol_value_1 (stderr, fixp->fx_addsy); |
2544 | fprintf (stderr, ">"); | |
2545 | } | |
a55774a1 KR |
2546 | if (fixp->fx_subsy) |
2547 | { | |
2548 | fprintf (stderr, "\n -<"); | |
2549 | print_symbol_value_1 (stderr, fixp->fx_subsy); | |
2550 | fprintf (stderr, ">"); | |
2551 | } | |
9dc6c00f | 2552 | fprintf (stderr, "\n"); |
4acf8c78 KR |
2553 | } |
2554 | ||
fecd2382 | 2555 | /* end of write.c */ |