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; | |
f00f5ecd ILT |
133 | /* We've made fx_size a narrow field; check that it's wide enough. */ |
134 | if (fixP->fx_size != size) | |
135 | { | |
136 | as_bad ("field fx_size too small to hold %d", size); | |
137 | abort (); | |
138 | } | |
6efd877d KR |
139 | fixP->fx_addsy = add_symbol; |
140 | fixP->fx_subsy = sub_symbol; | |
141 | fixP->fx_offset = offset; | |
142 | fixP->fx_pcrel = pcrel; | |
a55774a1 | 143 | fixP->fx_plt = 0; |
43ca9aa6 | 144 | #if defined(NEED_FX_R_TYPE) || defined (BFD_ASSEMBLER) |
6efd877d | 145 | fixP->fx_r_type = r_type; |
c593cf41 | 146 | #endif |
6efd877d KR |
147 | fixP->fx_im_disp = 0; |
148 | fixP->fx_pcrel_adjust = 0; | |
6efd877d | 149 | fixP->fx_bit_fixP = 0; |
43ca9aa6 | 150 | fixP->fx_addnumber = 0; |
a58374d7 | 151 | fixP->fx_tcbit = 0; |
98c6bbbe | 152 | fixP->fx_done = 0; |
43ca9aa6 | 153 | |
f00f5ecd ILT |
154 | #ifdef TC_FIX_TYPE |
155 | TC_INIT_FIX_DATA(fixP); | |
43ca9aa6 | 156 | #endif |
43ca9aa6 | 157 | |
84fa9814 KR |
158 | as_where (&fixP->fx_file, &fixP->fx_line); |
159 | ||
43ca9aa6 KR |
160 | /* Usually, we want relocs sorted numerically, but while |
161 | comparing to older versions of gas that have relocs | |
162 | reverse sorted, it is convenient to have this compile | |
163 | time option. xoxorich. */ | |
164 | ||
165 | { | |
6efd877d | 166 | |
43ca9aa6 | 167 | #ifdef BFD_ASSEMBLER |
1b96bdce ILT |
168 | fixS **seg_fix_rootP = (frags_chained |
169 | ? &seg_info (now_seg)->fix_root | |
170 | : &frchain_now->fix_root); | |
171 | fixS **seg_fix_tailP = (frags_chained | |
172 | ? &seg_info (now_seg)->fix_tail | |
173 | : &frchain_now->fix_tail); | |
43ca9aa6 | 174 | #endif |
09952cd9 | 175 | |
f6e504fe | 176 | #ifdef REVERSE_SORT_RELOCS |
6efd877d | 177 | |
43ca9aa6 KR |
178 | fixP->fx_next = *seg_fix_rootP; |
179 | *seg_fix_rootP = fixP; | |
6efd877d | 180 | |
f6e504fe | 181 | #else /* REVERSE_SORT_RELOCS */ |
6efd877d | 182 | |
43ca9aa6 | 183 | fixP->fx_next = NULL; |
6efd877d | 184 | |
43ca9aa6 KR |
185 | if (*seg_fix_tailP) |
186 | (*seg_fix_tailP)->fx_next = fixP; | |
187 | else | |
188 | *seg_fix_rootP = fixP; | |
189 | *seg_fix_tailP = fixP; | |
6efd877d | 190 | |
f6e504fe | 191 | #endif /* REVERSE_SORT_RELOCS */ |
6efd877d | 192 | |
43ca9aa6 KR |
193 | } |
194 | ||
195 | return fixP; | |
196 | } | |
197 | ||
5ac34ac3 ILT |
198 | /* Create a fixup relative to a symbol (plus a constant). */ |
199 | ||
200 | fixS * | |
201 | fix_new (frag, where, size, add_symbol, offset, pcrel, r_type) | |
202 | fragS *frag; /* Which frag? */ | |
203 | int where; /* Where in that frag? */ | |
f7da4a99 | 204 | int size; /* 1, 2, or 4 usually. */ |
5ac34ac3 ILT |
205 | symbolS *add_symbol; /* X_add_symbol. */ |
206 | offsetT offset; /* X_add_number. */ | |
207 | int pcrel; /* TRUE if PC-relative relocation. */ | |
208 | #ifdef BFD_ASSEMBLER | |
209 | bfd_reloc_code_real_type r_type; /* Relocation type */ | |
210 | #else | |
211 | int r_type; /* Relocation type */ | |
212 | #endif | |
213 | { | |
214 | return fix_new_internal (frag, where, size, add_symbol, | |
215 | (symbolS *) NULL, offset, pcrel, r_type); | |
216 | } | |
217 | ||
218 | /* Create a fixup for an expression. Currently we only support fixups | |
219 | for difference expressions. That is itself more than most object | |
220 | file formats support anyhow. */ | |
221 | ||
222 | fixS * | |
223 | fix_new_exp (frag, where, size, exp, pcrel, r_type) | |
224 | fragS *frag; /* Which frag? */ | |
225 | int where; /* Where in that frag? */ | |
f7da4a99 | 226 | int size; /* 1, 2, or 4 usually. */ |
5ac34ac3 ILT |
227 | expressionS *exp; /* Expression. */ |
228 | int pcrel; /* TRUE if PC-relative relocation. */ | |
229 | #ifdef BFD_ASSEMBLER | |
230 | bfd_reloc_code_real_type r_type; /* Relocation type */ | |
231 | #else | |
232 | int r_type; /* Relocation type */ | |
233 | #endif | |
234 | { | |
235 | symbolS *add = NULL; | |
236 | symbolS *sub = NULL; | |
237 | offsetT off = 0; | |
238 | ||
239 | switch (exp->X_op) | |
240 | { | |
241 | case O_absent: | |
242 | break; | |
243 | ||
4acf8c78 KR |
244 | case O_add: |
245 | /* This comes up when _GLOBAL_OFFSET_TABLE_+(.-L0) is read, if | |
246 | the difference expression cannot immediately be reduced. */ | |
247 | { | |
248 | extern symbolS *make_expr_symbol (); | |
249 | symbolS *stmp = make_expr_symbol (exp); | |
250 | exp->X_op = O_symbol; | |
251 | exp->X_op_symbol = 0; | |
252 | exp->X_add_symbol = stmp; | |
253 | exp->X_add_number = 0; | |
254 | return fix_new_exp (frag, where, size, exp, pcrel, r_type); | |
255 | } | |
256 | ||
b23f6743 KR |
257 | case O_uminus: |
258 | sub = exp->X_add_symbol; | |
259 | off = exp->X_add_number; | |
260 | break; | |
261 | ||
5ac34ac3 ILT |
262 | case O_subtract: |
263 | sub = exp->X_op_symbol; | |
264 | /* Fall through. */ | |
265 | case O_symbol: | |
266 | add = exp->X_add_symbol; | |
267 | /* Fall through. */ | |
268 | case O_constant: | |
269 | off = exp->X_add_number; | |
270 | break; | |
271 | ||
272 | default: | |
273 | as_bad ("expression too complex for fixup"); | |
274 | } | |
275 | ||
276 | return fix_new_internal (frag, where, size, add, sub, off, | |
277 | pcrel, r_type); | |
278 | } | |
279 | ||
43ca9aa6 KR |
280 | /* Append a string onto another string, bumping the pointer along. */ |
281 | void | |
282 | append (charPP, fromP, length) | |
283 | char **charPP; | |
284 | char *fromP; | |
285 | unsigned long length; | |
286 | { | |
287 | /* Don't trust memcpy() of 0 chars. */ | |
288 | if (length == 0) | |
289 | return; | |
290 | ||
80aab579 | 291 | memcpy (*charPP, fromP, length); |
43ca9aa6 KR |
292 | *charPP += length; |
293 | } | |
294 | ||
295 | #ifndef BFD_ASSEMBLER | |
296 | int section_alignment[SEG_MAXIMUM_ORDINAL]; | |
297 | #endif | |
298 | ||
299 | /* | |
300 | * This routine records the largest alignment seen for each segment. | |
301 | * If the beginning of the segment is aligned on the worst-case | |
302 | * boundary, all of the other alignments within it will work. At | |
303 | * least one object format really uses this info. | |
304 | */ | |
305 | void | |
306 | record_alignment (seg, align) | |
307 | /* Segment to which alignment pertains */ | |
308 | segT seg; | |
309 | /* Alignment, as a power of 2 (e.g., 1 => 2-byte boundary, 2 => 4-byte | |
310 | boundary, etc.) */ | |
311 | int align; | |
312 | { | |
5c800455 ILT |
313 | if (seg == absolute_section) |
314 | return; | |
43ca9aa6 KR |
315 | #ifdef BFD_ASSEMBLER |
316 | if (align > bfd_get_section_alignment (stdoutput, seg)) | |
317 | bfd_set_section_alignment (stdoutput, seg, align); | |
318 | #else | |
319 | if (align > section_alignment[(int) seg]) | |
320 | section_alignment[(int) seg] = align; | |
321 | #endif | |
322 | } | |
323 | ||
a55774a1 KR |
324 | #ifdef BFD_ASSEMBLER |
325 | ||
326 | /* Reset the section indices after removing the gas created sections. */ | |
327 | ||
328 | static void | |
329 | renumber_sections (abfd, sec, countparg) | |
330 | bfd *abfd; | |
331 | asection *sec; | |
332 | PTR countparg; | |
333 | { | |
334 | int *countp = (int *) countparg; | |
335 | ||
336 | sec->index = *countp; | |
337 | ++*countp; | |
338 | } | |
339 | ||
340 | #endif /* defined (BFD_ASSEMBLER) */ | |
341 | ||
43ca9aa6 KR |
342 | #if defined (BFD_ASSEMBLER) || ! defined (BFD) |
343 | ||
344 | static fragS * | |
345 | chain_frchains_together_1 (section, frchp) | |
346 | segT section; | |
347 | struct frchain *frchp; | |
348 | { | |
349 | fragS dummy, *prev_frag = &dummy; | |
b04bc423 | 350 | #ifdef BFD_ASSEMBLER |
3f81f3cf | 351 | fixS fix_dummy, *prev_fix = &fix_dummy; |
b04bc423 | 352 | #endif |
262b22cd | 353 | |
43ca9aa6 KR |
354 | for (; frchp && frchp->frch_seg == section; frchp = frchp->frch_next) |
355 | { | |
356 | prev_frag->fr_next = frchp->frch_root; | |
357 | prev_frag = frchp->frch_last; | |
3a0e38ee | 358 | #ifdef BFD_ASSEMBLER |
262b22cd ILT |
359 | if (frchp->fix_root != (fixS *) NULL) |
360 | { | |
361 | if (seg_info (section)->fix_root == (fixS *) NULL) | |
362 | seg_info (section)->fix_root = frchp->fix_root; | |
363 | prev_fix->fx_next = frchp->fix_root; | |
1b96bdce | 364 | seg_info (section)->fix_tail = frchp->fix_tail; |
262b22cd ILT |
365 | prev_fix = frchp->fix_tail; |
366 | } | |
3a0e38ee | 367 | #endif |
43ca9aa6 KR |
368 | } |
369 | prev_frag->fr_next = 0; | |
370 | return prev_frag; | |
371 | } | |
372 | ||
373 | #endif | |
374 | ||
375 | #ifdef BFD_ASSEMBLER | |
376 | ||
377 | static void | |
378 | chain_frchains_together (abfd, section, xxx) | |
379 | bfd *abfd; /* unused */ | |
380 | segT section; | |
a58374d7 | 381 | PTR xxx; /* unused */ |
43ca9aa6 | 382 | { |
f2f7d044 ILT |
383 | segment_info_type *info; |
384 | ||
385 | /* BFD may have introduced its own sections without using | |
386 | subseg_new, so it is possible that seg_info is NULL. */ | |
387 | info = seg_info (section); | |
388 | if (info != (segment_info_type *) NULL) | |
0f894895 JL |
389 | info->frchainP->frch_last |
390 | = chain_frchains_together_1 (section, info->frchainP); | |
1b96bdce ILT |
391 | |
392 | /* Now that we've chained the frags together, we must add new fixups | |
393 | to the segment, not to the frag chain. */ | |
394 | frags_chained = 1; | |
43ca9aa6 KR |
395 | } |
396 | ||
397 | #endif | |
542e1629 | 398 | |
d5364748 | 399 | #if !defined (BFD) && !defined (BFD_ASSEMBLER) |
65bfcf2e | 400 | |
6efd877d KR |
401 | void |
402 | remove_subsegs (head, seg, root, last) | |
403 | frchainS *head; | |
404 | int seg; | |
405 | fragS **root; | |
406 | fragS **last; | |
65bfcf2e | 407 | { |
65bfcf2e | 408 | *root = head->frch_root; |
43ca9aa6 KR |
409 | *last = chain_frchains_together_1 (seg, head); |
410 | } | |
411 | ||
412 | #endif /* BFD */ | |
413 | ||
80aab579 ILT |
414 | #if defined (BFD_ASSEMBLER) || !defined (BFD) |
415 | ||
43ca9aa6 | 416 | #ifdef BFD_ASSEMBLER |
58d4951d ILT |
417 | static void |
418 | cvt_frag_to_fill (sec, fragP) | |
419 | segT sec; | |
43ca9aa6 | 420 | fragS *fragP; |
43ca9aa6 | 421 | #else |
58d4951d | 422 | static void |
d4083e29 | 423 | cvt_frag_to_fill (headersP, sec, fragP) |
3f81f3cf | 424 | object_headers *headersP; |
d4083e29 | 425 | segT sec; |
58d4951d | 426 | fragS *fragP; |
43ca9aa6 | 427 | #endif |
58d4951d | 428 | { |
43ca9aa6 | 429 | switch (fragP->fr_type) |
6efd877d | 430 | { |
43ca9aa6 | 431 | case rs_align: |
cd3b81bd | 432 | case rs_align_code: |
43ca9aa6 | 433 | case rs_org: |
cd3b81bd | 434 | case rs_space: |
43ca9aa6 KR |
435 | #ifdef HANDLE_ALIGN |
436 | HANDLE_ALIGN (fragP); | |
437 | #endif | |
43ca9aa6 | 438 | know (fragP->fr_next != NULL); |
43ca9aa6 KR |
439 | fragP->fr_offset = (fragP->fr_next->fr_address |
440 | - fragP->fr_address | |
98c6bbbe | 441 | - fragP->fr_fix) / fragP->fr_var; |
c151fd1e KR |
442 | if (fragP->fr_offset < 0) |
443 | { | |
444 | as_bad ("attempt to .org/.space backwards? (%ld)", | |
445 | (long) fragP->fr_offset); | |
446 | } | |
cd3b81bd | 447 | fragP->fr_type = rs_fill; |
43ca9aa6 | 448 | break; |
65bfcf2e | 449 | |
43ca9aa6 KR |
450 | case rs_fill: |
451 | break; | |
452 | ||
453 | case rs_machine_dependent: | |
454 | #ifdef BFD_ASSEMBLER | |
455 | md_convert_frag (stdoutput, sec, fragP); | |
456 | #else | |
d4083e29 | 457 | md_convert_frag (headersP, sec, fragP); |
43ca9aa6 KR |
458 | #endif |
459 | ||
d5364748 | 460 | assert (fragP->fr_next == NULL || (fragP->fr_next->fr_address - fragP->fr_address == fragP->fr_fix)); |
43ca9aa6 KR |
461 | |
462 | /* | |
463 | * After md_convert_frag, we make the frag into a ".space 0". | |
464 | * Md_convert_frag() should set up any fixSs and constants | |
465 | * required. | |
466 | */ | |
467 | frag_wane (fragP); | |
468 | break; | |
469 | ||
470 | #ifndef WORKING_DOT_WORD | |
471 | case rs_broken_word: | |
472 | { | |
473 | struct broken_word *lie; | |
474 | ||
475 | if (fragP->fr_subtype) | |
476 | { | |
477 | fragP->fr_fix += md_short_jump_size; | |
478 | for (lie = (struct broken_word *) (fragP->fr_symbol); | |
479 | lie && lie->dispfrag == fragP; | |
480 | lie = lie->next_broken_word) | |
481 | if (lie->added == 1) | |
482 | fragP->fr_fix += md_long_jump_size; | |
483 | } | |
484 | frag_wane (fragP); | |
485 | } | |
486 | break; | |
487 | #endif | |
488 | ||
489 | default: | |
490 | BAD_CASE (fragP->fr_type); | |
491 | break; | |
6efd877d | 492 | } |
65bfcf2e | 493 | } |
6efd877d | 494 | |
80aab579 ILT |
495 | #endif /* defined (BFD_ASSEMBLER) || !defined (BFD) */ |
496 | ||
43ca9aa6 KR |
497 | #ifdef BFD_ASSEMBLER |
498 | static void | |
499 | relax_and_size_seg (abfd, sec, xxx) | |
500 | bfd *abfd; | |
501 | asection *sec; | |
a58374d7 | 502 | PTR xxx; |
43ca9aa6 KR |
503 | { |
504 | flagword flags; | |
13e9182d KR |
505 | fragS *fragp; |
506 | segment_info_type *seginfo; | |
507 | int x; | |
508 | valueT size, newsize; | |
43ca9aa6 | 509 | |
f00f5ecd ILT |
510 | subseg_change (sec, 0); |
511 | ||
43ca9aa6 KR |
512 | flags = bfd_get_section_flags (abfd, sec); |
513 | ||
d9d6f094 | 514 | seginfo = seg_info (sec); |
13e9182d | 515 | if (seginfo && seginfo->frchainP) |
43ca9aa6 | 516 | { |
13e9182d KR |
517 | relax_segment (seginfo->frchainP->frch_root, sec); |
518 | for (fragp = seginfo->frchainP->frch_root; fragp; fragp = fragp->fr_next) | |
519 | cvt_frag_to_fill (sec, fragp); | |
520 | for (fragp = seginfo->frchainP->frch_root; | |
521 | fragp->fr_next; | |
522 | fragp = fragp->fr_next) | |
523 | /* walk to last elt */; | |
524 | size = fragp->fr_address + fragp->fr_fix; | |
525 | } | |
526 | else | |
527 | size = 0; | |
a58374d7 ILT |
528 | |
529 | if (size > 0 && ! seginfo->bss) | |
530 | flags |= SEC_HAS_CONTENTS; | |
531 | ||
532 | /* @@ This is just an approximation. */ | |
5f6efd5a | 533 | if (seginfo && seginfo->fix_root) |
a58374d7 ILT |
534 | flags |= SEC_RELOC; |
535 | else | |
536 | flags &= ~SEC_RELOC; | |
537 | x = bfd_set_section_flags (abfd, sec, flags); | |
538 | assert (x == true); | |
539 | ||
20b39b6f JL |
540 | newsize = md_section_align (sec, size); |
541 | x = bfd_set_section_size (abfd, sec, newsize); | |
13e9182d KR |
542 | assert (x == true); |
543 | ||
544 | /* If the size had to be rounded up, add some padding in the last | |
545 | non-empty frag. */ | |
13e9182d KR |
546 | assert (newsize >= size); |
547 | if (size != newsize) | |
548 | { | |
549 | fragS *last = seginfo->frchainP->frch_last; | |
550 | fragp = seginfo->frchainP->frch_root; | |
551 | while (fragp->fr_next != last) | |
552 | fragp = fragp->fr_next; | |
553 | last->fr_address = size; | |
554 | fragp->fr_offset += newsize - size; | |
555 | } | |
556 | ||
43ca9aa6 KR |
557 | #ifdef tc_frob_section |
558 | tc_frob_section (sec); | |
559 | #endif | |
560 | #ifdef obj_frob_section | |
561 | obj_frob_section (sec); | |
562 | #endif | |
563 | } | |
564 | ||
d5364748 KR |
565 | #ifdef DEBUG2 |
566 | static void | |
567 | dump_section_relocs (abfd, sec, stream_) | |
568 | bfd *abfd; | |
569 | asection *sec; | |
570 | char *stream_; | |
571 | { | |
572 | FILE *stream = (FILE *) stream_; | |
573 | segment_info_type *seginfo = seg_info (sec); | |
574 | fixS *fixp = seginfo->fix_root; | |
575 | ||
576 | if (!fixp) | |
577 | return; | |
578 | ||
579 | fprintf (stream, "sec %s relocs:\n", sec->name); | |
580 | while (fixp) | |
581 | { | |
582 | symbolS *s = fixp->fx_addsy; | |
583 | if (s) | |
1cf7548e KR |
584 | { |
585 | fprintf (stream, " %08x: %s(%s", fixp, S_GET_NAME (s), | |
586 | s->bsym->section->name); | |
587 | if (s->bsym->flags & BSF_SECTION_SYM) | |
588 | { | |
589 | fprintf (stream, " section sym"); | |
590 | if (S_GET_VALUE (s)) | |
591 | fprintf (stream, "+%x", S_GET_VALUE (s)); | |
592 | } | |
593 | else | |
594 | fprintf (stream, "+%x", S_GET_VALUE (s)); | |
595 | fprintf (stream, ")+%x\n", fixp->fx_offset); | |
596 | } | |
d5364748 KR |
597 | else |
598 | fprintf (stream, " %08x: type %d no sym\n", fixp, fixp->fx_r_type); | |
599 | fixp = fixp->fx_next; | |
600 | } | |
601 | } | |
602 | #else | |
603 | #define dump_section_relocs(ABFD,SEC,STREAM) (void)(ABFD,SEC,STREAM) | |
604 | #endif | |
605 | ||
98c6bbbe KR |
606 | #ifndef EMIT_SECTION_SYMBOLS |
607 | #define EMIT_SECTION_SYMBOLS 1 | |
608 | #endif | |
609 | ||
d5364748 KR |
610 | static void |
611 | adjust_reloc_syms (abfd, sec, xxx) | |
612 | bfd *abfd; | |
613 | asection *sec; | |
a58374d7 | 614 | PTR xxx; |
d5364748 KR |
615 | { |
616 | segment_info_type *seginfo = seg_info (sec); | |
617 | fixS *fixp; | |
618 | ||
619 | if (seginfo == NULL) | |
620 | return; | |
621 | ||
622 | dump_section_relocs (abfd, sec, stderr); | |
623 | ||
624 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) | |
98c6bbbe KR |
625 | if (fixp->fx_done) |
626 | /* ignore it */; | |
627 | else if (fixp->fx_addsy) | |
d5364748 | 628 | { |
a55774a1 | 629 | symbolS *sym; |
4acf8c78 KR |
630 | asection *symsec; |
631 | ||
632 | reduce_fixup: | |
633 | ||
a55774a1 KR |
634 | #ifdef DEBUG5 |
635 | fprintf (stderr, "\n\nadjusting fixup:\n"); | |
636 | print_fixup (fixp); | |
637 | #endif | |
638 | ||
639 | sym = fixp->fx_addsy; | |
4acf8c78 | 640 | symsec = sym->bsym->section; |
d5364748 | 641 | |
e120d9fb | 642 | if (sym != NULL && sym->sy_mri_common) |
1356d77d ILT |
643 | { |
644 | /* These symbols are handled specially in fixup_segment. */ | |
645 | goto done; | |
646 | } | |
647 | ||
a58374d7 ILT |
648 | /* If it's one of these sections, assume the symbol is |
649 | definitely going to be output. The code in | |
650 | md_estimate_size_before_relax in tc-mips.c uses this test | |
651 | as well, so if you change this code you should look at that | |
652 | code. */ | |
cd3b81bd KR |
653 | if (bfd_is_und_section (symsec) |
654 | || bfd_is_abs_section (symsec) | |
d5364748 | 655 | || bfd_is_com_section (symsec)) |
80aab579 ILT |
656 | { |
657 | fixp->fx_addsy->sy_used_in_reloc = 1; | |
d4083e29 KR |
658 | #ifdef UNDEFINED_DIFFERENCE_OK |
659 | /* We have the difference of an undefined symbol and some | |
660 | other symbol. Make sure to mark the other symbol as used | |
661 | in a relocation so that it will always be output. */ | |
662 | if (fixp->fx_subsy) | |
663 | fixp->fx_subsy->sy_used_in_reloc = 1; | |
664 | #endif | |
a55774a1 | 665 | goto done; |
80aab579 | 666 | } |
d5364748 KR |
667 | |
668 | /* Since we're reducing to section symbols, don't attempt to reduce | |
669 | anything that's already using one. */ | |
98c6bbbe | 670 | if (sym->bsym->flags & BSF_SECTION_SYM) |
80aab579 ILT |
671 | { |
672 | fixp->fx_addsy->sy_used_in_reloc = 1; | |
a55774a1 | 673 | goto done; |
80aab579 | 674 | } |
d5364748 KR |
675 | |
676 | /* Is there some other reason we can't adjust this one? (E.g., | |
677 | call/bal links in i960-bout symbols.) */ | |
678 | #ifdef obj_fix_adjustable | |
679 | if (! obj_fix_adjustable (fixp)) | |
80aab579 ILT |
680 | { |
681 | fixp->fx_addsy->sy_used_in_reloc = 1; | |
a55774a1 | 682 | goto done; |
80aab579 | 683 | } |
d5364748 | 684 | #endif |
efa0c22e KR |
685 | |
686 | /* Is there some other (target cpu dependent) reason we can't adjust | |
687 | this one? (E.g. relocations involving function addresses on | |
688 | the PA. */ | |
689 | #ifdef tc_fix_adjustable | |
690 | if (! tc_fix_adjustable (fixp)) | |
20b39b6f JL |
691 | { |
692 | fixp->fx_addsy->sy_used_in_reloc = 1; | |
a55774a1 | 693 | goto done; |
20b39b6f | 694 | } |
efa0c22e KR |
695 | #endif |
696 | ||
4acf8c78 KR |
697 | /* For PIC support: We may get expressions like |
698 | "_GLOBAL_OFFSET_TABLE_+(.-L5)" where "." and "L5" may not | |
699 | necessarily have had a fixed difference initially. But now | |
700 | it should be a known constant, so we can reduce it. Since | |
701 | we can't easily handle a symbol value that looks like | |
702 | someUndefinedSymbol+const, though, we convert the fixup to | |
703 | access the undefined symbol directly, and discard the | |
704 | intermediate symbol. */ | |
705 | if (S_GET_SEGMENT (sym) == expr_section | |
706 | && sym->sy_value.X_op == O_add | |
707 | && (resolve_symbol_value (sym->sy_value.X_add_symbol), | |
708 | S_GET_SEGMENT (sym->sy_value.X_add_symbol) == undefined_section) | |
709 | && (resolve_symbol_value (sym->sy_value.X_op_symbol), | |
710 | S_GET_SEGMENT (sym->sy_value.X_op_symbol) == absolute_section)) | |
711 | { | |
712 | fixp->fx_offset += S_GET_VALUE (sym->sy_value.X_op_symbol); | |
713 | fixp->fx_offset += sym->sy_value.X_add_number; | |
a55774a1 | 714 | fixp->fx_addsy = sym->sy_value.X_add_symbol; |
4acf8c78 KR |
715 | goto reduce_fixup; |
716 | } | |
717 | ||
d5364748 KR |
718 | /* If the section symbol isn't going to be output, the relocs |
719 | at least should still work. If not, figure out what to do | |
720 | when we run into that case. */ | |
721 | fixp->fx_offset += S_GET_VALUE (sym); | |
6868afe6 | 722 | fixp->fx_addsy = section_symbol (symsec); |
80aab579 | 723 | fixp->fx_addsy->sy_used_in_reloc = 1; |
a55774a1 KR |
724 | |
725 | done: | |
726 | ; | |
d5364748 | 727 | } |
1cf7548e | 728 | #if 1/*def RELOC_REQUIRES_SYMBOL*/ |
e67a0640 KR |
729 | else |
730 | { | |
731 | /* There was no symbol required by this relocation. However, | |
732 | BFD doesn't really handle relocations without symbols well. | |
733 | (At least, the COFF support doesn't.) So for now we fake up | |
734 | a local symbol in the absolute section. */ | |
e8501a72 | 735 | |
1cf7548e | 736 | fixp->fx_addsy = section_symbol (absolute_section); |
a55774a1 | 737 | /* fixp->fx_addsy->sy_used_in_reloc = 1; */ |
e67a0640 KR |
738 | } |
739 | #endif | |
d5364748 KR |
740 | |
741 | dump_section_relocs (abfd, sec, stderr); | |
742 | } | |
743 | ||
43ca9aa6 | 744 | static void |
8d6c34a1 | 745 | write_relocs (abfd, sec, xxx) |
43ca9aa6 KR |
746 | bfd *abfd; |
747 | asection *sec; | |
a58374d7 | 748 | PTR xxx; |
43ca9aa6 KR |
749 | { |
750 | segment_info_type *seginfo = seg_info (sec); | |
80aab579 ILT |
751 | int i; |
752 | unsigned int n; | |
43ca9aa6 KR |
753 | arelent **relocs; |
754 | fixS *fixp; | |
98c6bbbe | 755 | char *err; |
43ca9aa6 | 756 | |
d5364748 KR |
757 | /* If seginfo is NULL, we did not create this section; don't do |
758 | anything with it. */ | |
759 | if (seginfo == NULL) | |
43ca9aa6 KR |
760 | return; |
761 | ||
762 | fixup_segment (seginfo->fix_root, sec); | |
763 | ||
3d3c5039 | 764 | n = 0; |
d5364748 KR |
765 | for (fixp = seginfo->fix_root; fixp; fixp = fixp->fx_next) |
766 | n++; | |
43ca9aa6 | 767 | |
d5364748 | 768 | #ifndef RELOC_EXPANSION_POSSIBLE |
43ca9aa6 | 769 | /* Set up reloc information as well. */ |
43ca9aa6 KR |
770 | relocs = (arelent **) bfd_alloc_by_size_t (stdoutput, |
771 | n * sizeof (arelent *)); | |
8d6c34a1 | 772 | memset ((char*)relocs, 0, n * sizeof (arelent*)); |
43ca9aa6 | 773 | |
3d3c5039 ILT |
774 | i = 0; |
775 | for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next) | |
776 | { | |
777 | arelent *reloc; | |
3d3c5039 ILT |
778 | bfd_reloc_status_type s; |
779 | ||
98c6bbbe | 780 | if (fixp->fx_done) |
3d3c5039 | 781 | { |
3d3c5039 ILT |
782 | n--; |
783 | continue; | |
784 | } | |
785 | reloc = tc_gen_reloc (sec, fixp); | |
786 | if (!reloc) | |
787 | { | |
788 | n--; | |
789 | continue; | |
790 | } | |
c43d56f7 | 791 | if (fixp->fx_where + fixp->fx_size |
3d3c5039 ILT |
792 | > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset) |
793 | abort (); | |
335d35c8 | 794 | |
4acf8c78 KR |
795 | s = bfd_install_relocation (stdoutput, reloc, |
796 | fixp->fx_frag->fr_literal, | |
797 | fixp->fx_frag->fr_address, | |
798 | sec, &err); | |
3d3c5039 ILT |
799 | switch (s) |
800 | { | |
801 | case bfd_reloc_ok: | |
802 | break; | |
df44a852 KR |
803 | case bfd_reloc_overflow: |
804 | as_bad_where (fixp->fx_file, fixp->fx_line, "relocation overflow"); | |
805 | break; | |
3d3c5039 | 806 | default: |
4acf8c78 KR |
807 | as_fatal ("%s:%u: bad return from bfd_perform_relocation", |
808 | fixp->fx_file, fixp->fx_line); | |
3d3c5039 ILT |
809 | } |
810 | relocs[i++] = reloc; | |
811 | } | |
d5364748 KR |
812 | #else |
813 | n = n * MAX_RELOC_EXPANSION; | |
814 | /* Set up reloc information as well. */ | |
815 | relocs = (arelent **) bfd_alloc_by_size_t (stdoutput, | |
816 | n * sizeof (arelent *)); | |
817 | ||
818 | i = 0; | |
819 | for (fixp = seginfo->fix_root; fixp != (fixS *) NULL; fixp = fixp->fx_next) | |
820 | { | |
821 | arelent **reloc; | |
d5364748 KR |
822 | char *data; |
823 | bfd_reloc_status_type s; | |
824 | int j; | |
825 | ||
98c6bbbe | 826 | if (fixp->fx_done) |
d5364748 | 827 | { |
d5364748 KR |
828 | n--; |
829 | continue; | |
830 | } | |
831 | reloc = tc_gen_reloc (sec, fixp); | |
832 | ||
833 | for (j = 0; reloc[j]; j++) | |
834 | { | |
835 | relocs[i++] = reloc[j]; | |
836 | assert(i <= n); | |
837 | } | |
838 | data = fixp->fx_frag->fr_literal + fixp->fx_where; | |
c43d56f7 | 839 | if (fixp->fx_where + fixp->fx_size |
d5364748 KR |
840 | > fixp->fx_frag->fr_fix + fixp->fx_frag->fr_offset) |
841 | abort (); | |
842 | for (j = 0; reloc[j]; j++) | |
843 | { | |
a55774a1 KR |
844 | s = bfd_install_relocation (stdoutput, reloc[j], |
845 | fixp->fx_frag->fr_literal, | |
846 | fixp->fx_frag->fr_address, | |
847 | sec, &err); | |
d5364748 KR |
848 | switch (s) |
849 | { | |
98c6bbbe KR |
850 | case bfd_reloc_ok: |
851 | break; | |
4acf8c78 KR |
852 | case bfd_reloc_overflow: |
853 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
854 | "relocation overflow"); | |
855 | break; | |
98c6bbbe | 856 | default: |
4acf8c78 KR |
857 | as_fatal ("%s:%u: bad return from bfd_perform_relocation", |
858 | fixp->fx_file, fixp->fx_line); | |
d5364748 KR |
859 | } |
860 | } | |
861 | } | |
862 | n = i; | |
863 | #endif | |
864 | ||
1cf7548e KR |
865 | #ifdef DEBUG4 |
866 | { | |
867 | int i, j, nsyms; | |
868 | asymbol **sympp; | |
869 | sympp = bfd_get_outsymbols (stdoutput); | |
870 | nsyms = bfd_get_symcount (stdoutput); | |
871 | for (i = 0; i < n; i++) | |
872 | if (((*relocs[i]->sym_ptr_ptr)->flags & BSF_SECTION_SYM) == 0) | |
873 | { | |
874 | for (j = 0; j < nsyms; j++) | |
875 | if (sympp[j] == *relocs[i]->sym_ptr_ptr) | |
876 | break; | |
877 | if (j == nsyms) | |
878 | abort (); | |
879 | } | |
880 | } | |
881 | #endif | |
882 | ||
3d3c5039 ILT |
883 | if (n) |
884 | bfd_set_reloc (stdoutput, sec, relocs, n); | |
d5364748 KR |
885 | else |
886 | bfd_set_section_flags (abfd, sec, | |
80aab579 ILT |
887 | (bfd_get_section_flags (abfd, sec) |
888 | & (flagword) ~SEC_RELOC)); | |
98c6bbbe KR |
889 | |
890 | #ifdef DEBUG3 | |
d5364748 KR |
891 | { |
892 | int i; | |
893 | arelent *r; | |
894 | asymbol *s; | |
895 | fprintf (stderr, "relocs for sec %s\n", sec->name); | |
896 | for (i = 0; i < n; i++) | |
897 | { | |
898 | r = relocs[i]; | |
899 | s = *r->sym_ptr_ptr; | |
900 | fprintf (stderr, " reloc %2d @%08x off %4x : sym %-10s addend %x\n", | |
901 | i, r, r->address, s->name, r->addend); | |
902 | } | |
903 | } | |
904 | #endif | |
8d6c34a1 | 905 | } |
d5364748 | 906 | |
8d6c34a1 KR |
907 | static void |
908 | write_contents (abfd, sec, xxx) | |
909 | bfd *abfd; | |
910 | asection *sec; | |
a58374d7 | 911 | PTR xxx; |
8d6c34a1 KR |
912 | { |
913 | segment_info_type *seginfo = seg_info (sec); | |
914 | unsigned long offset = 0; | |
80aab579 | 915 | fragS *f; |
3d3c5039 ILT |
916 | |
917 | /* Write out the frags. */ | |
f37449aa ILT |
918 | if (seginfo == NULL |
919 | || ! (bfd_get_section_flags (abfd, sec) & SEC_HAS_CONTENTS)) | |
d5364748 KR |
920 | return; |
921 | ||
80aab579 ILT |
922 | for (f = seginfo->frchainP->frch_root; |
923 | f; | |
924 | f = f->fr_next) | |
43ca9aa6 KR |
925 | { |
926 | int x; | |
927 | unsigned long fill_size; | |
928 | char *fill_literal; | |
929 | long count; | |
930 | ||
80aab579 ILT |
931 | assert (f->fr_type == rs_fill); |
932 | if (f->fr_fix) | |
43ca9aa6 KR |
933 | { |
934 | x = bfd_set_section_contents (stdoutput, sec, | |
80aab579 ILT |
935 | f->fr_literal, (file_ptr) offset, |
936 | (bfd_size_type) f->fr_fix); | |
1cf7548e KR |
937 | if (x == false) |
938 | { | |
939 | bfd_perror (stdoutput->filename); | |
940 | as_perror ("FATAL: Can't write %s", stdoutput->filename); | |
4acf8c78 | 941 | exit (EXIT_FAILURE); |
1cf7548e | 942 | } |
80aab579 | 943 | offset += f->fr_fix; |
43ca9aa6 | 944 | } |
80aab579 ILT |
945 | fill_literal = f->fr_literal + f->fr_fix; |
946 | fill_size = f->fr_var; | |
947 | count = f->fr_offset; | |
43ca9aa6 KR |
948 | assert (count >= 0); |
949 | if (fill_size && count) | |
d9d6f094 KR |
950 | { |
951 | char buf[256]; | |
305a3af6 SC |
952 | if (fill_size > sizeof(buf)) |
953 | { | |
954 | /* Do it the old way. Can this ever happen? */ | |
955 | while (count--) | |
956 | { | |
957 | x = bfd_set_section_contents (stdoutput, sec, | |
958 | fill_literal, | |
959 | (file_ptr) offset, | |
960 | (bfd_size_type) fill_size); | |
961 | if (x == false) | |
962 | { | |
963 | bfd_perror (stdoutput->filename); | |
964 | as_perror ("FATAL: Can't write %s", stdoutput->filename); | |
965 | exit (EXIT_FAILURE); | |
966 | } | |
967 | offset += fill_size; | |
968 | } | |
969 | } | |
970 | else | |
971 | { | |
972 | /* Build a buffer full of fill objects and output it as | |
973 | often as necessary. This saves on the overhead of | |
974 | potentially lots of bfd_set_section_contents calls. */ | |
975 | int n_per_buf, i; | |
976 | if (fill_size == 1) | |
977 | { | |
978 | n_per_buf = sizeof (buf); | |
979 | memset (buf, *fill_literal, n_per_buf); | |
980 | } | |
981 | else | |
982 | { | |
983 | char *bufp; | |
984 | n_per_buf = sizeof(buf)/fill_size; | |
985 | for (i = n_per_buf, bufp = buf; i; i--, bufp += fill_size) | |
986 | memcpy(bufp, fill_literal, fill_size); | |
987 | } | |
988 | for (; count > 0; count -= n_per_buf) | |
989 | { | |
990 | n_per_buf = n_per_buf > count ? count : n_per_buf; | |
991 | x = bfd_set_section_contents (stdoutput, sec, | |
992 | buf, (file_ptr) offset, | |
993 | (bfd_size_type) n_per_buf * fill_size); | |
994 | if (x != true) | |
995 | as_fatal ("Cannot write to output file."); | |
996 | offset += n_per_buf * fill_size; | |
997 | } | |
998 | } | |
d9d6f094 | 999 | } |
43ca9aa6 | 1000 | } |
43ca9aa6 KR |
1001 | } |
1002 | #endif | |
1003 | ||
80aab579 | 1004 | #if defined(BFD_ASSEMBLER) || (!defined (BFD) && !defined(OBJ_AOUT)) |
b23f6743 KR |
1005 | static void |
1006 | merge_data_into_text () | |
1007 | { | |
4064305e | 1008 | #if defined(BFD_ASSEMBLER) || defined(MANY_SEGMENTS) |
b23f6743 KR |
1009 | seg_info (text_section)->frchainP->frch_last->fr_next = |
1010 | seg_info (data_section)->frchainP->frch_root; | |
1011 | seg_info (text_section)->frchainP->frch_last = | |
1012 | seg_info (data_section)->frchainP->frch_last; | |
1013 | seg_info (data_section)->frchainP = 0; | |
1014 | #else | |
1015 | fixS *tmp; | |
1016 | ||
1017 | text_last_frag->fr_next = data_frag_root; | |
1018 | text_last_frag = data_last_frag; | |
1019 | data_last_frag = NULL; | |
1020 | data_frag_root = NULL; | |
1021 | if (text_fix_root) | |
1022 | { | |
1023 | for (tmp = text_fix_root; tmp->fx_next; tmp = tmp->fx_next);; | |
1024 | tmp->fx_next = data_fix_root; | |
1025 | text_fix_tail = data_fix_tail; | |
1026 | } | |
1027 | else | |
1028 | text_fix_root = data_fix_root; | |
1029 | data_fix_root = NULL; | |
1030 | #endif | |
1031 | } | |
80aab579 | 1032 | #endif /* BFD_ASSEMBLER || (! BFD && ! OBJ_AOUT) */ |
b23f6743 KR |
1033 | |
1034 | #if !defined (BFD_ASSEMBLER) && !defined (BFD) | |
1035 | static void | |
1036 | relax_and_size_all_segments () | |
1037 | { | |
13e9182d KR |
1038 | fragS *fragP; |
1039 | ||
b23f6743 KR |
1040 | relax_segment (text_frag_root, SEG_TEXT); |
1041 | relax_segment (data_frag_root, SEG_DATA); | |
1042 | relax_segment (bss_frag_root, SEG_BSS); | |
1043 | /* | |
1044 | * Now the addresses of frags are correct within the segment. | |
1045 | */ | |
1046 | ||
1047 | know (text_last_frag->fr_type == rs_fill && text_last_frag->fr_offset == 0); | |
1048 | H_SET_TEXT_SIZE (&headers, text_last_frag->fr_address); | |
1049 | text_last_frag->fr_address = H_GET_TEXT_SIZE (&headers); | |
1050 | ||
1051 | /* | |
1052 | * Join the 2 segments into 1 huge segment. | |
1053 | * To do this, re-compute every rn_address in the SEG_DATA frags. | |
1054 | * Then join the data frags after the text frags. | |
1055 | * | |
1056 | * Determine a_data [length of data segment]. | |
1057 | */ | |
1058 | if (data_frag_root) | |
1059 | { | |
1060 | register relax_addressT slide; | |
1061 | ||
1062 | know ((text_last_frag->fr_type == rs_fill) && (text_last_frag->fr_offset == 0)); | |
1063 | ||
1064 | H_SET_DATA_SIZE (&headers, data_last_frag->fr_address); | |
1065 | data_last_frag->fr_address = H_GET_DATA_SIZE (&headers); | |
1066 | slide = H_GET_TEXT_SIZE (&headers); /* & in file of the data segment. */ | |
1067 | #ifdef OBJ_BOUT | |
1068 | #define RoundUp(N,S) (((N)+(S)-1)&-(S)) | |
1069 | /* For b.out: If the data section has a strict alignment | |
1070 | requirement, its load address in the .o file will be | |
1071 | rounded up from the size of the text section. These | |
1072 | two values are *not* the same! Similarly for the bss | |
1073 | section.... */ | |
1074 | slide = RoundUp (slide, 1 << section_alignment[SEG_DATA]); | |
1075 | #endif | |
1076 | ||
1077 | for (fragP = data_frag_root; fragP; fragP = fragP->fr_next) | |
1078 | { | |
1079 | fragP->fr_address += slide; | |
1080 | } /* for each data frag */ | |
1081 | ||
1082 | know (text_last_frag != 0); | |
1083 | text_last_frag->fr_next = data_frag_root; | |
1084 | } | |
1085 | else | |
1086 | { | |
1087 | H_SET_DATA_SIZE (&headers, 0); | |
1088 | } | |
1089 | ||
1090 | #ifdef OBJ_BOUT | |
1091 | /* See above comments on b.out data section address. */ | |
1092 | { | |
1093 | long bss_vma; | |
1094 | if (data_last_frag == 0) | |
1095 | bss_vma = H_GET_TEXT_SIZE (&headers); | |
1096 | else | |
1097 | bss_vma = data_last_frag->fr_address; | |
1098 | bss_vma = RoundUp (bss_vma, 1 << section_alignment[SEG_BSS]); | |
1099 | bss_address_frag.fr_address = bss_vma; | |
1100 | } | |
1101 | #else /* ! OBJ_BOUT */ | |
1102 | bss_address_frag.fr_address = (H_GET_TEXT_SIZE (&headers) + | |
1103 | H_GET_DATA_SIZE (&headers)); | |
1104 | ||
efa0c22e | 1105 | #endif /* ! OBJ_BOUT */ |
b23f6743 KR |
1106 | |
1107 | /* Slide all the frags */ | |
1108 | if (bss_frag_root) | |
1109 | { | |
1110 | relax_addressT slide = bss_address_frag.fr_address; | |
1111 | ||
1112 | for (fragP = bss_frag_root; fragP; fragP = fragP->fr_next) | |
1113 | { | |
1114 | fragP->fr_address += slide; | |
1115 | } /* for each bss frag */ | |
1116 | } | |
1117 | ||
b23f6743 KR |
1118 | if (bss_last_frag) |
1119 | H_SET_BSS_SIZE (&headers, | |
1120 | bss_last_frag->fr_address - bss_frag_root->fr_address); | |
1121 | else | |
1122 | H_SET_BSS_SIZE (&headers, 0); | |
1123 | } | |
1124 | #endif /* ! BFD_ASSEMBLER && ! BFD */ | |
1125 | ||
d5364748 KR |
1126 | #if defined (BFD_ASSEMBLER) || !defined (BFD) |
1127 | ||
1b96bdce | 1128 | #ifdef BFD_ASSEMBLER |
1cf7548e KR |
1129 | static void |
1130 | set_symtab () | |
1131 | { | |
1132 | int nsyms; | |
1133 | asymbol **asympp; | |
1134 | symbolS *symp; | |
1135 | boolean result; | |
1136 | extern PTR bfd_alloc PARAMS ((bfd *, size_t)); | |
1137 | ||
1138 | /* Count symbols. We can't rely on a count made by the loop in | |
1139 | write_object_file, because *_frob_file may add a new symbol or | |
1140 | two. */ | |
1141 | nsyms = 0; | |
1142 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
1143 | nsyms++; | |
1144 | ||
1145 | if (nsyms) | |
1146 | { | |
1147 | int i; | |
1148 | ||
1149 | asympp = (asymbol **) bfd_alloc (stdoutput, | |
1150 | nsyms * sizeof (asymbol *)); | |
1151 | symp = symbol_rootP; | |
1152 | for (i = 0; i < nsyms; i++, symp = symbol_next (symp)) | |
1153 | { | |
1154 | asympp[i] = symp->bsym; | |
1155 | symp->written = 1; | |
1156 | } | |
1157 | } | |
1158 | else | |
1159 | asympp = 0; | |
1160 | result = bfd_set_symtab (stdoutput, asympp, nsyms); | |
1161 | assert (result == true); | |
1162 | symbol_table_frozen = 1; | |
1163 | } | |
1b96bdce | 1164 | #endif |
1cf7548e | 1165 | |
6efd877d KR |
1166 | void |
1167 | write_object_file () | |
45432836 | 1168 | { |
741f4d66 | 1169 | struct frchain *frchainP; /* Track along all frchains. */ |
58d4951d | 1170 | #if ! defined (BFD_ASSEMBLER) || ! defined (WORKING_DOT_WORD) |
741f4d66 | 1171 | fragS *fragP; /* Track along all frags. */ |
58d4951d | 1172 | #endif |
6efd877d | 1173 | |
43ca9aa6 KR |
1174 | /* Do we really want to write it? */ |
1175 | { | |
1176 | int n_warns, n_errs; | |
1177 | n_warns = had_warnings (); | |
1178 | n_errs = had_errors (); | |
1179 | /* The -Z flag indicates that an object file should be generated, | |
1180 | regardless of warnings and errors. */ | |
def66e24 | 1181 | if (flag_always_generate_output) |
43ca9aa6 KR |
1182 | { |
1183 | if (n_warns || n_errs) | |
1184 | as_warn ("%d error%s, %d warning%s, generating bad object file.\n", | |
1185 | n_errs, n_errs == 1 ? "" : "s", | |
1186 | n_warns, n_warns == 1 ? "" : "s"); | |
1187 | } | |
1188 | else | |
1189 | { | |
1190 | if (n_errs) | |
1191 | as_fatal ("%d error%s, %d warning%s, no object file generated.\n", | |
1192 | n_errs, n_errs == 1 ? "" : "s", | |
1193 | n_warns, n_warns == 1 ? "" : "s"); | |
1194 | } | |
1195 | } | |
1196 | ||
3eb802b5 | 1197 | #ifdef OBJ_VMS |
1cf7548e KR |
1198 | /* Under VMS we try to be compatible with VAX-11 "C". Thus, we call |
1199 | a routine to check for the definition of the procedure "_main", | |
1200 | and if so -- fix it up so that it can be program entry point. */ | |
8e86815b | 1201 | vms_check_for_main (); |
3f81f3cf | 1202 | #endif /* OBJ_VMS */ |
43ca9aa6 KR |
1203 | |
1204 | /* After every sub-segment, we fake an ".align ...". This conforms to | |
1205 | BSD4.2 brane-damage. We then fake ".fill 0" because that is the kind of | |
1206 | frag that requires least thought. ".align" frags like to have a | |
1207 | following frag since that makes calculating their intended length | |
1208 | trivial. | |
1209 | ||
1210 | @@ Is this really necessary?? */ | |
3eb802b5 | 1211 | #ifndef SUB_SEGMENT_ALIGN |
43ca9aa6 | 1212 | #ifdef BFD_ASSEMBLER |
f2f7d044 | 1213 | #define SUB_SEGMENT_ALIGN(SEG) (0) |
43ca9aa6 | 1214 | #else |
f2f7d044 | 1215 | #define SUB_SEGMENT_ALIGN(SEG) (2) |
43ca9aa6 | 1216 | #endif |
3eb802b5 | 1217 | #endif |
6efd877d KR |
1218 | for (frchainP = frchain_root; frchainP; frchainP = frchainP->frch_next) |
1219 | { | |
43ca9aa6 | 1220 | subseg_set (frchainP->frch_seg, frchainP->frch_subseg); |
f2f7d044 | 1221 | frag_align (SUB_SEGMENT_ALIGN (now_seg), NOP_OPCODE); |
43ca9aa6 KR |
1222 | /* frag_align will have left a new frag. |
1223 | Use this last frag for an empty ".fill". | |
1224 | ||
1225 | For this segment ... | |
1226 | Create a last frag. Do not leave a "being filled in frag". */ | |
6efd877d KR |
1227 | frag_wane (frag_now); |
1228 | frag_now->fr_fix = 0; | |
1229 | know (frag_now->fr_next == NULL); | |
43ca9aa6 | 1230 | } |
6efd877d | 1231 | |
43ca9aa6 KR |
1232 | /* From now on, we don't care about sub-segments. Build one frag chain |
1233 | for each segment. Linked thru fr_next. */ | |
65bfcf2e | 1234 | |
43ca9aa6 KR |
1235 | #ifdef BFD_ASSEMBLER |
1236 | /* Remove the sections created by gas for its own purposes. */ | |
1237 | { | |
1238 | asection **seclist, *sec; | |
a55774a1 KR |
1239 | int i; |
1240 | ||
43ca9aa6 KR |
1241 | seclist = &stdoutput->sections; |
1242 | while (seclist && *seclist) | |
1243 | { | |
1244 | sec = *seclist; | |
5ac34ac3 | 1245 | while (sec == reg_section || sec == expr_section) |
43ca9aa6 KR |
1246 | { |
1247 | sec = sec->next; | |
1248 | *seclist = sec; | |
1249 | stdoutput->section_count--; | |
1250 | if (!sec) | |
1251 | break; | |
1252 | } | |
1253 | if (*seclist) | |
1254 | seclist = &(*seclist)->next; | |
1255 | } | |
a55774a1 KR |
1256 | i = 0; |
1257 | bfd_map_over_sections (stdoutput, renumber_sections, &i); | |
43ca9aa6 KR |
1258 | } |
1259 | ||
1260 | bfd_map_over_sections (stdoutput, chain_frchains_together, (char *) 0); | |
1261 | #else | |
6efd877d KR |
1262 | remove_subsegs (frchain_root, SEG_TEXT, &text_frag_root, &text_last_frag); |
1263 | remove_subsegs (data0_frchainP, SEG_DATA, &data_frag_root, &data_last_frag); | |
1264 | remove_subsegs (bss0_frchainP, SEG_BSS, &bss_frag_root, &bss_last_frag); | |
43ca9aa6 | 1265 | #endif |
6efd877d | 1266 | |
43ca9aa6 KR |
1267 | /* We have two segments. If user gave -R flag, then we must put the |
1268 | data frags into the text segment. Do this before relaxing so | |
1269 | we know to take advantage of -R and make shorter addresses. */ | |
1270 | #if !defined (OBJ_AOUT) || defined (BFD_ASSEMBLER) | |
def66e24 | 1271 | if (flag_readonly_data_in_text) |
6efd877d | 1272 | { |
b23f6743 | 1273 | merge_data_into_text (); |
6efd877d KR |
1274 | } |
1275 | #endif | |
43ca9aa6 KR |
1276 | |
1277 | #ifdef BFD_ASSEMBLER | |
1278 | bfd_map_over_sections (stdoutput, relax_and_size_seg, (char *) 0); | |
1279 | #else | |
b23f6743 | 1280 | relax_and_size_all_segments (); |
43ca9aa6 | 1281 | #endif /* BFD_ASSEMBLER */ |
65bfcf2e | 1282 | |
43ca9aa6 | 1283 | #ifndef BFD_ASSEMBLER |
6efd877d | 1284 | /* |
7f2cb270 KR |
1285 | * |
1286 | * Crawl the symbol chain. | |
1287 | * | |
1288 | * For each symbol whose value depends on a frag, take the address of | |
1289 | * that frag and subsume it into the value of the symbol. | |
1290 | * After this, there is just one way to lookup a symbol value. | |
1291 | * Values are left in their final state for object file emission. | |
1292 | * We adjust the values of 'L' local symbols, even if we do | |
1293 | * not intend to emit them to the object file, because their values | |
1294 | * are needed for fix-ups. | |
1295 | * | |
1296 | * Unless we saw a -L flag, remove all symbols that begin with 'L' | |
1297 | * from the symbol chain. (They are still pointed to by the fixes.) | |
1298 | * | |
1299 | * Count the remaining symbols. | |
1300 | * Assign a symbol number to each symbol. | |
1301 | * Count the number of string-table chars we will emit. | |
1302 | * Put this info into the headers as appropriate. | |
1303 | * | |
1304 | */ | |
6efd877d KR |
1305 | know (zero_address_frag.fr_address == 0); |
1306 | string_byte_count = sizeof (string_byte_count); | |
1307 | ||
1308 | obj_crawl_symbol_chain (&headers); | |
1309 | ||
1310 | if (string_byte_count == sizeof (string_byte_count)) | |
43ca9aa6 | 1311 | string_byte_count = 0; |
6efd877d KR |
1312 | |
1313 | H_SET_STRING_SIZE (&headers, string_byte_count); | |
1314 | ||
1315 | /* | |
7f2cb270 KR |
1316 | * Addresses of frags now reflect addresses we use in the object file. |
1317 | * Symbol values are correct. | |
1318 | * Scan the frags, converting any ".org"s and ".align"s to ".fill"s. | |
1319 | * Also converting any machine-dependent frags using md_convert_frag(); | |
1320 | */ | |
6efd877d KR |
1321 | subseg_change (SEG_TEXT, 0); |
1322 | ||
1323 | for (fragP = text_frag_root; fragP; fragP = fragP->fr_next) | |
1324 | { | |
d4083e29 | 1325 | cvt_frag_to_fill (&headers, SEG_TEXT, fragP); |
6efd877d | 1326 | |
43ca9aa6 KR |
1327 | /* Some assert macros don't work with # directives mixed in. */ |
1328 | #ifndef NDEBUG | |
1329 | if (!(fragP->fr_next == NULL | |
ebfb4167 | 1330 | #ifdef OBJ_BOUT |
43ca9aa6 | 1331 | || fragP->fr_next == data_frag_root |
ebfb4167 | 1332 | #endif |
6efd877d | 1333 | || ((fragP->fr_next->fr_address - fragP->fr_address) |
43ca9aa6 KR |
1334 | == (fragP->fr_fix + fragP->fr_offset * fragP->fr_var)))) |
1335 | abort (); | |
1336 | #endif | |
1337 | } | |
1338 | #endif /* ! BFD_ASSEMBLER */ | |
6efd877d | 1339 | |
fecd2382 | 1340 | #ifndef WORKING_DOT_WORD |
6efd877d KR |
1341 | { |
1342 | struct broken_word *lie; | |
1343 | struct broken_word **prevP; | |
1344 | ||
1345 | prevP = &broken_words; | |
1346 | for (lie = broken_words; lie; lie = lie->next_broken_word) | |
1347 | if (!lie->added) | |
a39116f1 | 1348 | { |
5ac34ac3 ILT |
1349 | expressionS exp; |
1350 | ||
1351 | exp.X_op = O_subtract; | |
1352 | exp.X_add_symbol = lie->add; | |
1353 | exp.X_op_symbol = lie->sub; | |
1354 | exp.X_add_number = lie->addnum; | |
43ca9aa6 | 1355 | #ifdef BFD_ASSEMBLER |
d9d6f094 KR |
1356 | #ifdef TC_CONS_FIX_NEW |
1357 | TC_CONS_FIX_NEW (lie->frag, | |
1358 | lie->word_goes_here - lie->frag->fr_literal, | |
1359 | 2, &exp); | |
1360 | #else | |
5ac34ac3 ILT |
1361 | fix_new_exp (lie->frag, |
1362 | lie->word_goes_here - lie->frag->fr_literal, | |
1363 | 2, &exp, 0, BFD_RELOC_NONE); | |
d9d6f094 | 1364 | #endif |
43ca9aa6 KR |
1365 | #else |
1366 | #if defined(TC_SPARC) || defined(TC_A29K) || defined(NEED_FX_R_TYPE) | |
5ac34ac3 ILT |
1367 | fix_new_exp (lie->frag, |
1368 | lie->word_goes_here - lie->frag->fr_literal, | |
1369 | 2, &exp, 0, NO_RELOC); | |
43ca9aa6 | 1370 | #else |
fecd2382 | 1371 | #ifdef TC_NS32K |
5ac34ac3 ILT |
1372 | fix_new_ns32k_exp (lie->frag, |
1373 | lie->word_goes_here - lie->frag->fr_literal, | |
1374 | 2, &exp, 0, 0, 2, 0, 0); | |
343fb08d | 1375 | #else |
5ac34ac3 ILT |
1376 | fix_new_exp (lie->frag, |
1377 | lie->word_goes_here - lie->frag->fr_literal, | |
1378 | 2, &exp, 0, 0); | |
fecd2382 | 1379 | #endif /* TC_NS32K */ |
43ca9aa6 KR |
1380 | #endif /* TC_SPARC|TC_A29K|NEED_FX_R_TYPE */ |
1381 | #endif /* BFD_ASSEMBLER */ | |
6efd877d | 1382 | *prevP = lie->next_broken_word; |
a39116f1 | 1383 | } |
6efd877d KR |
1384 | else |
1385 | prevP = &(lie->next_broken_word); | |
1386 | ||
1387 | for (lie = broken_words; lie;) | |
1388 | { | |
1389 | struct broken_word *untruth; | |
1390 | char *table_ptr; | |
d5364748 KR |
1391 | addressT table_addr; |
1392 | addressT from_addr, to_addr; | |
6efd877d KR |
1393 | int n, m; |
1394 | ||
6efd877d KR |
1395 | fragP = lie->dispfrag; |
1396 | ||
43ca9aa6 | 1397 | /* Find out how many broken_words go here. */ |
6efd877d KR |
1398 | n = 0; |
1399 | for (untruth = lie; untruth && untruth->dispfrag == fragP; untruth = untruth->next_broken_word) | |
1400 | if (untruth->added == 1) | |
1401 | n++; | |
1402 | ||
1403 | table_ptr = lie->dispfrag->fr_opcode; | |
1404 | table_addr = lie->dispfrag->fr_address + (table_ptr - lie->dispfrag->fr_literal); | |
43ca9aa6 KR |
1405 | /* Create the jump around the long jumps. This is a short |
1406 | jump from table_ptr+0 to table_ptr+n*long_jump_size. */ | |
6efd877d KR |
1407 | from_addr = table_addr; |
1408 | to_addr = table_addr + md_short_jump_size + n * md_long_jump_size; | |
1409 | md_create_short_jump (table_ptr, from_addr, to_addr, lie->dispfrag, lie->add); | |
1410 | table_ptr += md_short_jump_size; | |
1411 | table_addr += md_short_jump_size; | |
1412 | ||
1413 | for (m = 0; lie && lie->dispfrag == fragP; m++, lie = lie->next_broken_word) | |
1414 | { | |
1415 | if (lie->added == 2) | |
1416 | continue; | |
1417 | /* Patch the jump table */ | |
1418 | /* This is the offset from ??? to table_ptr+0 */ | |
d5364748 | 1419 | to_addr = table_addr - S_GET_VALUE (lie->sub); |
d9d6f094 KR |
1420 | #ifdef BFD_ASSEMBLER |
1421 | to_addr -= lie->sub->sy_frag->fr_address; | |
1422 | #endif | |
6efd877d KR |
1423 | md_number_to_chars (lie->word_goes_here, to_addr, 2); |
1424 | for (untruth = lie->next_broken_word; untruth && untruth->dispfrag == fragP; untruth = untruth->next_broken_word) | |
1425 | { | |
1426 | if (untruth->use_jump == lie) | |
1427 | md_number_to_chars (untruth->word_goes_here, to_addr, 2); | |
1428 | } | |
1429 | ||
1430 | /* Install the long jump */ | |
1431 | /* this is a long jump from table_ptr+0 to the final target */ | |
1432 | from_addr = table_addr; | |
1433 | to_addr = S_GET_VALUE (lie->add) + lie->addnum; | |
d9d6f094 KR |
1434 | #ifdef BFD_ASSEMBLER |
1435 | to_addr += lie->add->sy_frag->fr_address; | |
1436 | #endif | |
6efd877d KR |
1437 | md_create_long_jump (table_ptr, from_addr, to_addr, lie->dispfrag, lie->add); |
1438 | table_ptr += md_long_jump_size; | |
1439 | table_addr += md_long_jump_size; | |
1440 | } | |
1441 | } | |
1442 | } | |
fecd2382 | 1443 | #endif /* not WORKING_DOT_WORD */ |
6efd877d | 1444 | |
43ca9aa6 | 1445 | #ifndef BFD_ASSEMBLER |
3eb802b5 | 1446 | #ifndef OBJ_VMS |
6efd877d | 1447 | { /* not vms */ |
3f81f3cf | 1448 | char *the_object_file; |
1cf7548e | 1449 | long object_file_size; |
6efd877d | 1450 | /* |
3eb802b5 ILT |
1451 | * Scan every FixS performing fixups. We had to wait until now to do |
1452 | * this because md_convert_frag() may have made some fixSs. | |
1453 | */ | |
6efd877d KR |
1454 | int trsize, drsize; |
1455 | ||
1456 | subseg_change (SEG_TEXT, 0); | |
d5364748 | 1457 | trsize = md_reloc_size * fixup_segment (text_fix_root, SEG_TEXT); |
6efd877d | 1458 | subseg_change (SEG_DATA, 0); |
d5364748 | 1459 | drsize = md_reloc_size * fixup_segment (data_fix_root, SEG_DATA); |
6efd877d KR |
1460 | H_SET_RELOCATION_SIZE (&headers, trsize, drsize); |
1461 | ||
1462 | /* FIXME move this stuff into the pre-write-hook */ | |
1463 | H_SET_MAGIC_NUMBER (&headers, magic_number_for_object_file); | |
1464 | H_SET_ENTRY_POINT (&headers, 0); | |
1465 | ||
1466 | obj_pre_write_hook (&headers); /* extra coff stuff */ | |
6efd877d KR |
1467 | |
1468 | object_file_size = H_GET_FILE_SIZE (&headers); | |
1469 | next_object_file_charP = the_object_file = xmalloc (object_file_size); | |
1470 | ||
1471 | output_file_create (out_file_name); | |
1472 | ||
1473 | obj_header_append (&next_object_file_charP, &headers); | |
1474 | ||
1475 | know ((next_object_file_charP - the_object_file) == H_GET_HEADER_SIZE (&headers)); | |
1476 | ||
1477 | /* | |
43ca9aa6 KR |
1478 | * Emit code. |
1479 | */ | |
6efd877d KR |
1480 | for (fragP = text_frag_root; fragP; fragP = fragP->fr_next) |
1481 | { | |
1482 | register long count; | |
1483 | register char *fill_literal; | |
1484 | register long fill_size; | |
1485 | ||
c151fd1e | 1486 | PROGRESS (1); |
6efd877d KR |
1487 | know (fragP->fr_type == rs_fill); |
1488 | append (&next_object_file_charP, fragP->fr_literal, (unsigned long) fragP->fr_fix); | |
1489 | fill_literal = fragP->fr_literal + fragP->fr_fix; | |
1490 | fill_size = fragP->fr_var; | |
1491 | know (fragP->fr_offset >= 0); | |
1492 | ||
1493 | for (count = fragP->fr_offset; count; count--) | |
1494 | { | |
1495 | append (&next_object_file_charP, fill_literal, (unsigned long) fill_size); | |
1496 | } /* for each */ | |
1497 | ||
1498 | } /* for each code frag. */ | |
1499 | ||
1500 | know ((next_object_file_charP - the_object_file) == (H_GET_HEADER_SIZE (&headers) + H_GET_TEXT_SIZE (&headers) + H_GET_DATA_SIZE (&headers))); | |
1501 | ||
1502 | /* | |
43ca9aa6 KR |
1503 | * Emit relocations. |
1504 | */ | |
6efd877d KR |
1505 | obj_emit_relocations (&next_object_file_charP, text_fix_root, (relax_addressT) 0); |
1506 | 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 | 1507 | #ifdef TC_I960 |
6efd877d | 1508 | /* Make addresses in data relocation directives relative to beginning of |
43ca9aa6 KR |
1509 | * first data fragment, not end of last text fragment: alignment of the |
1510 | * start of the data segment may place a gap between the segments. | |
1511 | */ | |
6efd877d | 1512 | obj_emit_relocations (&next_object_file_charP, data_fix_root, data0_frchainP->frch_root->fr_address); |
fecd2382 | 1513 | #else /* TC_I960 */ |
6efd877d | 1514 | obj_emit_relocations (&next_object_file_charP, data_fix_root, text_last_frag->fr_address); |
fecd2382 | 1515 | #endif /* TC_I960 */ |
6efd877d KR |
1516 | |
1517 | 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))); | |
1518 | ||
1519 | /* | |
43ca9aa6 KR |
1520 | * Emit line number entries. |
1521 | */ | |
6efd877d KR |
1522 | OBJ_EMIT_LINENO (&next_object_file_charP, lineno_rootP, the_object_file); |
1523 | 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))); | |
1524 | ||
1525 | /* | |
3eb802b5 ILT |
1526 | * Emit symbols. |
1527 | */ | |
6efd877d KR |
1528 | obj_emit_symbols (&next_object_file_charP, symbol_rootP); |
1529 | 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))); | |
1530 | ||
1531 | /* | |
3eb802b5 ILT |
1532 | * Emit strings. |
1533 | */ | |
6efd877d KR |
1534 | |
1535 | if (string_byte_count > 0) | |
1536 | { | |
1537 | obj_emit_strings (&next_object_file_charP); | |
1538 | } /* only if we have a string table */ | |
1539 | ||
45432836 | 1540 | #ifdef BFD_HEADERS |
6efd877d KR |
1541 | bfd_seek (stdoutput, 0, 0); |
1542 | bfd_write (the_object_file, 1, object_file_size, stdoutput); | |
45432836 | 1543 | #else |
6efd877d KR |
1544 | |
1545 | /* Write the data to the file */ | |
1546 | output_file_append (the_object_file, object_file_size, out_file_name); | |
3f81f3cf | 1547 | free (the_object_file); |
45432836 | 1548 | #endif |
6efd877d | 1549 | } /* non vms output */ |
3f81f3cf | 1550 | #else /* OBJ_VMS */ |
6efd877d | 1551 | /* |
3eb802b5 ILT |
1552 | * Now do the VMS-dependent part of writing the object file |
1553 | */ | |
8e86815b | 1554 | vms_write_object_file (H_GET_TEXT_SIZE (&headers), |
85825401 ILT |
1555 | H_GET_DATA_SIZE (&headers), |
1556 | H_GET_BSS_SIZE (&headers), | |
3eb802b5 | 1557 | text_frag_root, data_frag_root); |
3f81f3cf | 1558 | #endif /* OBJ_VMS */ |
43ca9aa6 | 1559 | #else /* BFD_ASSEMBLER */ |
6efd877d | 1560 | |
4acf8c78 KR |
1561 | /* Resolve symbol values. This needs to be done before processing |
1562 | the relocations. */ | |
1563 | if (symbol_rootP) | |
1564 | { | |
1565 | symbolS *symp; | |
1566 | ||
1567 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
1568 | if (!symp->sy_resolved) | |
1569 | resolve_symbol_value (symp); | |
1570 | } | |
1571 | ||
c151fd1e KR |
1572 | PROGRESS (1); |
1573 | ||
d5364748 KR |
1574 | bfd_map_over_sections (stdoutput, adjust_reloc_syms, (char *)0); |
1575 | ||
43ca9aa6 KR |
1576 | /* Set up symbol table, and write it out. */ |
1577 | if (symbol_rootP) | |
1578 | { | |
43ca9aa6 KR |
1579 | symbolS *symp; |
1580 | ||
1581 | for (symp = symbol_rootP; symp; symp = symbol_next (symp)) | |
1582 | { | |
262b22cd | 1583 | int punt = 0; |
c151fd1e KR |
1584 | const char *name; |
1585 | ||
1356d77d ILT |
1586 | if (symp->sy_mri_common) |
1587 | { | |
1588 | if (S_IS_EXTERNAL (symp)) | |
1589 | as_bad ("%s: global symbols not supported in common sections", | |
1590 | S_GET_NAME (symp)); | |
1591 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); | |
1592 | continue; | |
1593 | } | |
1594 | ||
c151fd1e KR |
1595 | name = S_GET_NAME (symp); |
1596 | if (name) | |
1597 | { | |
a2a5a4fa | 1598 | const char *name2 = decode_local_label_name ((char *)S_GET_NAME (symp)); |
c151fd1e KR |
1599 | /* They only differ if `name' is a fb or dollar local |
1600 | label name. */ | |
1601 | if (name2 != name && ! S_IS_DEFINED (symp)) | |
1602 | as_bad ("local label %s is not defined", name2); | |
1603 | } | |
262b22cd | 1604 | |
4acf8c78 KR |
1605 | /* Do it again, because adjust_reloc_syms might introduce |
1606 | more symbols. They'll probably only be section symbols, | |
1607 | but they'll still need to have the values computed. */ | |
5868b1fe ILT |
1608 | if (! symp->sy_resolved) |
1609 | { | |
5ac34ac3 | 1610 | if (symp->sy_value.X_op == O_constant) |
5868b1fe ILT |
1611 | { |
1612 | /* This is the normal case; skip the call. */ | |
1613 | S_SET_VALUE (symp, | |
1614 | (S_GET_VALUE (symp) | |
1615 | + symp->sy_frag->fr_address)); | |
1616 | symp->sy_resolved = 1; | |
1617 | } | |
1618 | else | |
1619 | resolve_symbol_value (symp); | |
1620 | } | |
1621 | ||
43ca9aa6 KR |
1622 | /* So far, common symbols have been treated like undefined symbols. |
1623 | Put them in the common section now. */ | |
1624 | if (S_IS_DEFINED (symp) == 0 | |
1625 | && S_GET_VALUE (symp) != 0) | |
d9d6f094 | 1626 | S_SET_SEGMENT (symp, bfd_com_section_ptr); |
43ca9aa6 | 1627 | #if 0 |
5868b1fe | 1628 | printf ("symbol `%s'\n\t@%x: value=%d flags=%x seg=%s\n", |
43ca9aa6 KR |
1629 | S_GET_NAME (symp), symp, |
1630 | S_GET_VALUE (symp), | |
d5364748 | 1631 | symp->bsym->flags, |
43ca9aa6 KR |
1632 | segment_name (symp->bsym->section)); |
1633 | #endif | |
335d35c8 | 1634 | |
80aab579 | 1635 | #ifdef obj_frob_symbol |
262b22cd | 1636 | obj_frob_symbol (symp, punt); |
43ca9aa6 KR |
1637 | #endif |
1638 | #ifdef tc_frob_symbol | |
262b22cd | 1639 | if (! punt || symp->sy_used_in_reloc) |
335d35c8 | 1640 | tc_frob_symbol (symp, punt); |
43ca9aa6 | 1641 | #endif |
80aab579 | 1642 | |
262b22cd ILT |
1643 | /* If we don't want to keep this symbol, splice it out of |
1644 | the chain now. If EMIT_SECTION_SYMBOLS is 0, we never | |
1645 | want section symbols. Otherwise, we skip local symbols | |
1646 | and symbols that the frob_symbol macros told us to punt, | |
1647 | but we keep such symbols if they are used in relocs. */ | |
1648 | if ((! EMIT_SECTION_SYMBOLS | |
1649 | && (symp->bsym->flags & BSF_SECTION_SYM) != 0) | |
1cf7548e KR |
1650 | /* Note that S_IS_EXTERN and S_IS_LOCAL are not always |
1651 | opposites. Sometimes the former checks flags and the | |
1652 | latter examines the name... */ | |
1653 | || (!S_IS_EXTERN (symp) | |
1654 | && (S_IS_LOCAL (symp) || punt) | |
262b22cd | 1655 | && ! symp->sy_used_in_reloc)) |
43ca9aa6 | 1656 | { |
1cf7548e KR |
1657 | symbol_remove (symp, &symbol_rootP, &symbol_lastP); |
1658 | /* After symbol_remove, symbol_next(symp) still returns | |
1659 | the one that came after it in the chain. So we don't | |
1660 | need to do any extra cleanup work here. */ | |
262b22cd | 1661 | |
262b22cd | 1662 | continue; |
43ca9aa6 | 1663 | } |
85051959 | 1664 | |
80aab579 ILT |
1665 | /* Make sure we really got a value for the symbol. */ |
1666 | if (! symp->sy_resolved) | |
1667 | { | |
1668 | as_bad ("can't resolve value for symbol \"%s\"", | |
1669 | S_GET_NAME (symp)); | |
1670 | symp->sy_resolved = 1; | |
1671 | } | |
1672 | ||
85051959 ILT |
1673 | /* Set the value into the BFD symbol. Up til now the value |
1674 | has only been kept in the gas symbolS struct. */ | |
1675 | symp->bsym->value = S_GET_VALUE (symp); | |
43ca9aa6 KR |
1676 | } |
1677 | } | |
1678 | ||
c151fd1e KR |
1679 | PROGRESS (1); |
1680 | ||
def66e24 DM |
1681 | /* Now do any format-specific adjustments to the symbol table, such |
1682 | as adding file symbols. */ | |
1683 | #ifdef obj_adjust_symtab | |
1684 | obj_adjust_symtab (); | |
1685 | #endif | |
1686 | ||
1687 | /* Now that all the sizes are known, and contents correct, we can | |
1688 | start writing to the file. */ | |
1689 | set_symtab (); | |
1690 | ||
1cf7548e KR |
1691 | /* If *_frob_file changes the symbol value at this point, it is |
1692 | responsible for moving the changed value into symp->bsym->value | |
1693 | as well. Hopefully all symbol value changing can be done in | |
1694 | *_frob_symbol. */ | |
c79e67a3 KR |
1695 | #ifdef tc_frob_file |
1696 | tc_frob_file (); | |
1697 | #endif | |
f2f7d044 ILT |
1698 | #ifdef obj_frob_file |
1699 | obj_frob_file (); | |
1700 | #endif | |
1701 | ||
8d6c34a1 KR |
1702 | bfd_map_over_sections (stdoutput, write_relocs, (char *) 0); |
1703 | ||
43ca9aa6 | 1704 | bfd_map_over_sections (stdoutput, write_contents, (char *) 0); |
43ca9aa6 KR |
1705 | #endif /* BFD_ASSEMBLER */ |
1706 | } | |
d5364748 | 1707 | #endif /* ! BFD */ |
fecd2382 RP |
1708 | |
1709 | /* | |
1710 | * relax_segment() | |
1711 | * | |
1712 | * Now we have a segment, not a crowd of sub-segments, we can make fr_address | |
1713 | * values. | |
1714 | * | |
1715 | * Relax the frags. | |
1716 | * | |
1717 | * After this, all frags in this segment have addresses that are correct | |
1718 | * within the segment. Since segments live in different file addresses, | |
1719 | * these frag addresses may not be the same as final object-file addresses. | |
1720 | */ | |
45432836 | 1721 | |
a58374d7 ILT |
1722 | #ifndef md_relax_frag |
1723 | ||
d5364748 | 1724 | /* Subroutines of relax_segment. */ |
43ca9aa6 KR |
1725 | static int |
1726 | is_dnrange (f1, f2) | |
1727 | struct frag *f1; | |
1728 | struct frag *f2; | |
1729 | { | |
1730 | for (; f1; f1 = f1->fr_next) | |
1731 | if (f1->fr_next == f2) | |
1732 | return 1; | |
1733 | return 0; | |
1734 | } | |
1735 | ||
a58374d7 ILT |
1736 | #endif /* ! defined (md_relax_frag) */ |
1737 | ||
43ca9aa6 | 1738 | /* Relax_align. Advance location counter to next address that has 'alignment' |
d5364748 | 1739 | lowest order bits all 0s, return size of adjustment made. */ |
43ca9aa6 KR |
1740 | static relax_addressT |
1741 | relax_align (address, alignment) | |
1742 | register relax_addressT address; /* Address now. */ | |
d5364748 | 1743 | register int alignment; /* Alignment (binary). */ |
43ca9aa6 KR |
1744 | { |
1745 | relax_addressT mask; | |
1746 | relax_addressT new_address; | |
1747 | ||
1748 | mask = ~((~0) << alignment); | |
1749 | new_address = (address + mask) & (~mask); | |
d4083e29 | 1750 | #ifdef LINKER_RELAXING_SHRINKS_ONLY |
43ca9aa6 KR |
1751 | if (linkrelax) |
1752 | /* We must provide lots of padding, so the linker can discard it | |
1753 | when needed. The linker will not add extra space, ever. */ | |
1754 | new_address += (1 << alignment); | |
d4083e29 | 1755 | #endif |
43ca9aa6 KR |
1756 | return (new_address - address); |
1757 | } | |
45432836 | 1758 | |
6efd877d KR |
1759 | void |
1760 | relax_segment (segment_frag_root, segment) | |
1761 | struct frag *segment_frag_root; | |
43ca9aa6 | 1762 | segT segment; |
fecd2382 | 1763 | { |
6efd877d KR |
1764 | register struct frag *fragP; |
1765 | register relax_addressT address; | |
43ca9aa6 | 1766 | #if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER) |
6efd877d | 1767 | know (segment == SEG_DATA || segment == SEG_TEXT || segment == SEG_BSS); |
45432836 | 1768 | #endif |
6efd877d KR |
1769 | /* In case md_estimate_size_before_relax() wants to make fixSs. */ |
1770 | subseg_change (segment, 0); | |
1771 | ||
7f2cb270 KR |
1772 | /* For each frag in segment: count and store (a 1st guess of) |
1773 | fr_address. */ | |
6efd877d KR |
1774 | address = 0; |
1775 | for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next) | |
1776 | { | |
1777 | fragP->fr_address = address; | |
1778 | address += fragP->fr_fix; | |
1779 | ||
1780 | switch (fragP->fr_type) | |
1781 | { | |
1782 | case rs_fill: | |
1783 | address += fragP->fr_offset * fragP->fr_var; | |
1784 | break; | |
1785 | ||
1786 | case rs_align: | |
cd3b81bd | 1787 | case rs_align_code: |
98c6bbbe KR |
1788 | { |
1789 | int offset = relax_align (address, (int) fragP->fr_offset); | |
1790 | if (offset % fragP->fr_var != 0) | |
1791 | { | |
262b22cd ILT |
1792 | as_bad ("alignment padding (%d bytes) not a multiple of %ld", |
1793 | offset, (long) fragP->fr_var); | |
98c6bbbe KR |
1794 | offset -= (offset % fragP->fr_var); |
1795 | } | |
1796 | address += offset; | |
1797 | } | |
6efd877d KR |
1798 | break; |
1799 | ||
1800 | case rs_org: | |
cd3b81bd | 1801 | case rs_space: |
7f2cb270 | 1802 | /* Assume .org is nugatory. It will grow with 1st relax. */ |
6efd877d KR |
1803 | break; |
1804 | ||
1805 | case rs_machine_dependent: | |
1806 | address += md_estimate_size_before_relax (fragP, segment); | |
1807 | break; | |
1808 | ||
fecd2382 | 1809 | #ifndef WORKING_DOT_WORD |
6efd877d KR |
1810 | /* Broken words don't concern us yet */ |
1811 | case rs_broken_word: | |
1812 | break; | |
fecd2382 | 1813 | #endif |
6efd877d KR |
1814 | |
1815 | default: | |
1816 | BAD_CASE (fragP->fr_type); | |
1817 | break; | |
1818 | } /* switch(fr_type) */ | |
1819 | } /* for each frag in the segment */ | |
1820 | ||
7f2cb270 | 1821 | /* Do relax(). */ |
6efd877d | 1822 | { |
7f2cb270 | 1823 | long stretch; /* May be any size, 0 or negative. */ |
6efd877d KR |
1824 | /* Cumulative number of addresses we have */ |
1825 | /* relaxed this pass. */ | |
1826 | /* We may have relaxed more than one address. */ | |
7f2cb270 KR |
1827 | long stretched; /* Have we stretched on this pass? */ |
1828 | /* This is 'cuz stretch may be zero, when, in fact some piece of code | |
1829 | grew, and another shrank. If a branch instruction doesn't fit anymore, | |
1830 | we could be scrod. */ | |
6efd877d KR |
1831 | |
1832 | do | |
1833 | { | |
1834 | stretch = stretched = 0; | |
1835 | for (fragP = segment_frag_root; fragP; fragP = fragP->fr_next) | |
1836 | { | |
7f2cb270 KR |
1837 | long growth = 0; |
1838 | unsigned long was_address; | |
1839 | long offset; | |
1840 | symbolS *symbolP; | |
1841 | long target; | |
1842 | long after; | |
6efd877d KR |
1843 | |
1844 | was_address = fragP->fr_address; | |
1845 | address = fragP->fr_address += stretch; | |
1846 | symbolP = fragP->fr_symbol; | |
1847 | offset = fragP->fr_offset; | |
6efd877d KR |
1848 | |
1849 | switch (fragP->fr_type) | |
1850 | { | |
1851 | case rs_fill: /* .fill never relaxes. */ | |
1852 | growth = 0; | |
1853 | break; | |
1854 | ||
fecd2382 | 1855 | #ifndef WORKING_DOT_WORD |
6efd877d | 1856 | /* JF: This is RMS's idea. I do *NOT* want to be blamed |
7f2cb270 KR |
1857 | for it I do not want to write it. I do not want to have |
1858 | anything to do with it. This is not the proper way to | |
1859 | implement this misfeature. */ | |
6efd877d KR |
1860 | case rs_broken_word: |
1861 | { | |
1862 | struct broken_word *lie; | |
1863 | struct broken_word *untruth; | |
6efd877d KR |
1864 | |
1865 | /* Yes this is ugly (storing the broken_word pointer | |
7f2cb270 KR |
1866 | in the symbol slot). Still, this whole chunk of |
1867 | code is ugly, and I don't feel like doing anything | |
1868 | about it. Think of it as stubbornness in action. */ | |
6efd877d KR |
1869 | growth = 0; |
1870 | for (lie = (struct broken_word *) (fragP->fr_symbol); | |
1871 | lie && lie->dispfrag == fragP; | |
1872 | lie = lie->next_broken_word) | |
1873 | { | |
1874 | ||
1875 | if (lie->added) | |
1876 | continue; | |
1877 | ||
7f2cb270 KR |
1878 | offset = (lie->add->sy_frag->fr_address |
1879 | + S_GET_VALUE (lie->add) | |
1880 | + lie->addnum | |
1881 | - (lie->sub->sy_frag->fr_address | |
1882 | + S_GET_VALUE (lie->sub))); | |
6efd877d KR |
1883 | if (offset <= -32768 || offset >= 32767) |
1884 | { | |
def66e24 | 1885 | if (flag_warn_displacement) |
d5364748 KR |
1886 | { |
1887 | char buf[50]; | |
80aab579 | 1888 | sprint_value (buf, (addressT) lie->addnum); |
d5364748 KR |
1889 | as_warn (".word %s-%s+%s didn't fit", |
1890 | S_GET_NAME (lie->add), | |
1891 | S_GET_NAME (lie->sub), | |
1892 | buf); | |
1893 | } | |
6efd877d KR |
1894 | lie->added = 1; |
1895 | if (fragP->fr_subtype == 0) | |
1896 | { | |
1897 | fragP->fr_subtype++; | |
1898 | growth += md_short_jump_size; | |
1899 | } | |
7f2cb270 KR |
1900 | for (untruth = lie->next_broken_word; |
1901 | untruth && untruth->dispfrag == lie->dispfrag; | |
1902 | untruth = untruth->next_broken_word) | |
6efd877d KR |
1903 | if ((untruth->add->sy_frag == lie->add->sy_frag) |
1904 | && S_GET_VALUE (untruth->add) == S_GET_VALUE (lie->add)) | |
1905 | { | |
1906 | untruth->added = 2; | |
1907 | untruth->use_jump = lie; | |
1908 | } | |
1909 | growth += md_long_jump_size; | |
1910 | } | |
1911 | } | |
1912 | ||
1913 | break; | |
1914 | } /* case rs_broken_word */ | |
fecd2382 | 1915 | #endif |
6efd877d | 1916 | case rs_align: |
cd3b81bd | 1917 | case rs_align_code: |
43ca9aa6 KR |
1918 | growth = (relax_align ((relax_addressT) (address |
1919 | + fragP->fr_fix), | |
d5364748 | 1920 | (int) offset) |
43ca9aa6 KR |
1921 | - relax_align ((relax_addressT) (was_address |
1922 | + fragP->fr_fix), | |
d5364748 | 1923 | (int) offset)); |
6efd877d KR |
1924 | break; |
1925 | ||
1926 | case rs_org: | |
1927 | target = offset; | |
1928 | ||
1929 | if (symbolP) | |
1930 | { | |
43ca9aa6 KR |
1931 | #if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER) |
1932 | know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE) | |
1933 | || (S_GET_SEGMENT (symbolP) == SEG_DATA) | |
1934 | || (S_GET_SEGMENT (symbolP) == SEG_TEXT) | |
1935 | || S_GET_SEGMENT (symbolP) == SEG_BSS); | |
6efd877d | 1936 | know (symbolP->sy_frag); |
43ca9aa6 KR |
1937 | know (!(S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE) |
1938 | || (symbolP->sy_frag == &zero_address_frag)); | |
45432836 | 1939 | #endif |
6efd877d KR |
1940 | target += S_GET_VALUE (symbolP) |
1941 | + symbolP->sy_frag->fr_address; | |
1942 | } /* if we have a symbol */ | |
1943 | ||
1944 | know (fragP->fr_next); | |
1945 | after = fragP->fr_next->fr_address; | |
c151fd1e KR |
1946 | growth = target - after; |
1947 | if (growth < 0) | |
1948 | { | |
1949 | /* Growth may be negative, but variable part of frag | |
1950 | cannot have fewer than 0 chars. That is, we can't | |
1951 | .org backwards. */ | |
1952 | as_bad ("attempt to .org backwards ignored"); | |
1953 | growth = 0; | |
1954 | } | |
6efd877d KR |
1955 | |
1956 | growth -= stretch; /* This is an absolute growth factor */ | |
1957 | break; | |
1958 | ||
cd3b81bd KR |
1959 | case rs_space: |
1960 | if (symbolP) | |
1961 | { | |
1962 | growth = S_GET_VALUE (symbolP); | |
1963 | if (symbolP->sy_frag != &zero_address_frag) | |
1964 | as_bad (".space specifies non-absolute value"); | |
1965 | fragP->fr_symbol = 0; | |
1966 | if (growth < 0) | |
1967 | { | |
1968 | as_warn (".space or .fill with negative value, ignored"); | |
1969 | growth = 0; | |
1970 | } | |
1971 | } | |
1972 | else | |
1973 | growth = 0; | |
1974 | break; | |
1975 | ||
6efd877d | 1976 | case rs_machine_dependent: |
a58374d7 ILT |
1977 | #ifdef md_relax_frag |
1978 | growth = md_relax_frag (fragP, stretch); | |
1979 | #else | |
c151fd1e | 1980 | #ifdef TC_GENERIC_RELAX_TABLE |
a58374d7 ILT |
1981 | /* The default way to relax a frag is to look through |
1982 | md_relax_table. */ | |
6efd877d | 1983 | { |
7f2cb270 KR |
1984 | const relax_typeS *this_type; |
1985 | const relax_typeS *start_type; | |
1986 | relax_substateT next_state; | |
1987 | relax_substateT this_state; | |
80aab579 | 1988 | long aim; |
c151fd1e | 1989 | const relax_typeS *table = TC_GENERIC_RELAX_TABLE; |
6efd877d | 1990 | |
7f2cb270 | 1991 | this_state = fragP->fr_subtype; |
c151fd1e | 1992 | start_type = this_type = table + this_state; |
6efd877d KR |
1993 | target = offset; |
1994 | ||
1995 | if (symbolP) | |
1996 | { | |
80aab579 | 1997 | #ifndef DIFF_EXPR_OK |
43ca9aa6 KR |
1998 | #if !defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER) |
1999 | know ((S_GET_SEGMENT (symbolP) == SEG_ABSOLUTE) | |
2000 | || (S_GET_SEGMENT (symbolP) == SEG_DATA) | |
2001 | || (S_GET_SEGMENT (symbolP) == SEG_BSS) | |
2002 | || (S_GET_SEGMENT (symbolP) == SEG_TEXT)); | |
45432836 | 2003 | #endif |
6efd877d | 2004 | know (symbolP->sy_frag); |
80aab579 | 2005 | #endif |
43ca9aa6 KR |
2006 | know (!(S_GET_SEGMENT (symbolP) == absolute_section) |
2007 | || symbolP->sy_frag == &zero_address_frag); | |
6efd877d KR |
2008 | target += |
2009 | S_GET_VALUE (symbolP) | |
2010 | + symbolP->sy_frag->fr_address; | |
2011 | ||
2012 | /* If frag has yet to be reached on this pass, | |
7f2cb270 KR |
2013 | assume it will move by STRETCH just as we did. |
2014 | If this is not so, it will be because some frag | |
d5364748 KR |
2015 | between grows, and that will force another pass. |
2016 | ||
2017 | Beware zero-length frags. | |
2018 | ||
2019 | There should be a faster way to do this. */ | |
6efd877d KR |
2020 | |
2021 | if (symbolP->sy_frag->fr_address >= was_address | |
2022 | && is_dnrange (fragP, symbolP->sy_frag)) | |
2023 | { | |
2024 | target += stretch; | |
7f2cb270 | 2025 | } |
d5364748 | 2026 | } |
6efd877d KR |
2027 | |
2028 | aim = target - address - fragP->fr_fix; | |
d9d6f094 KR |
2029 | #ifdef TC_PCREL_ADJUST |
2030 | /* Currently only the ns32k family needs this */ | |
2031 | aim += TC_PCREL_ADJUST(fragP); | |
2032 | #else | |
2033 | /* This machine doesn't want to use pcrel_adjust. | |
2034 | In that case, pcrel_adjust should be zero. */ | |
2035 | assert (fragP->fr_pcrel_adjust == 0); | |
d5364748 | 2036 | #endif |
6efd877d KR |
2037 | |
2038 | if (aim < 0) | |
2039 | { | |
2040 | /* Look backwards. */ | |
2041 | for (next_state = this_type->rlx_more; next_state;) | |
7f2cb270 KR |
2042 | if (aim >= this_type->rlx_backward) |
2043 | next_state = 0; | |
2044 | else | |
2045 | { | |
2046 | /* Grow to next state. */ | |
2047 | this_state = next_state; | |
c151fd1e | 2048 | this_type = table + this_state; |
7f2cb270 KR |
2049 | next_state = this_type->rlx_more; |
2050 | } | |
6efd877d KR |
2051 | } |
2052 | else | |
2053 | { | |
a39116f1 | 2054 | #ifdef M68K_AIM_KLUDGE |
6efd877d | 2055 | M68K_AIM_KLUDGE (aim, this_state, this_type); |
fecd2382 | 2056 | #endif |
6efd877d KR |
2057 | /* Look forwards. */ |
2058 | for (next_state = this_type->rlx_more; next_state;) | |
7f2cb270 KR |
2059 | if (aim <= this_type->rlx_forward) |
2060 | next_state = 0; | |
2061 | else | |
2062 | { | |
2063 | /* Grow to next state. */ | |
2064 | this_state = next_state; | |
c151fd1e | 2065 | this_type = table + this_state; |
7f2cb270 KR |
2066 | next_state = this_type->rlx_more; |
2067 | } | |
6efd877d KR |
2068 | } |
2069 | ||
7f2cb270 KR |
2070 | growth = this_type->rlx_length - start_type->rlx_length; |
2071 | if (growth != 0) | |
6efd877d | 2072 | fragP->fr_subtype = this_state; |
7f2cb270 | 2073 | } |
c151fd1e | 2074 | #endif /* TC_GENERIC_RELAX_TABLE */ |
a58374d7 | 2075 | #endif |
7f2cb270 | 2076 | break; |
6efd877d KR |
2077 | |
2078 | default: | |
2079 | BAD_CASE (fragP->fr_type); | |
2080 | break; | |
2081 | } | |
2082 | if (growth) | |
2083 | { | |
2084 | stretch += growth; | |
2085 | stretched++; | |
2086 | } | |
2087 | } /* For each frag in the segment. */ | |
2088 | } | |
2089 | while (stretched); /* Until nothing further to relax. */ | |
2090 | } /* do_relax */ | |
2091 | ||
2092 | /* | |
7f2cb270 KR |
2093 | * We now have valid fr_address'es for each frag. |
2094 | */ | |
6efd877d KR |
2095 | |
2096 | /* | |
7f2cb270 KR |
2097 | * All fr_address's are correct, relative to their own segment. |
2098 | * We have made all the fixS we will ever make. | |
2099 | */ | |
6efd877d | 2100 | } /* relax_segment() */ |
fecd2382 | 2101 | |
3f81f3cf | 2102 | #if defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS)) |
80aab579 | 2103 | |
d9d6f094 KR |
2104 | #ifndef TC_RELOC_RTSYM_LOC_FIXUP |
2105 | #define TC_RELOC_RTSYM_LOC_FIXUP(X) (1) | |
2106 | #endif | |
2107 | ||
fecd2382 | 2108 | /* fixup_segment() |
6efd877d | 2109 | |
fecd2382 RP |
2110 | Go through all the fixS's in a segment and see which ones can be |
2111 | handled now. (These consist of fixS where we have since discovered | |
2112 | the value of a symbol, or the address of the frag involved.) | |
2113 | For each one, call md_apply_fix to put the fix into the frag data. | |
6efd877d | 2114 | |
fecd2382 RP |
2115 | Result is a count of how many relocation structs will be needed to |
2116 | handle the remaining fixS's that we couldn't completely handle here. | |
2117 | These will be output later by emit_relocations(). */ | |
2118 | ||
09952cd9 | 2119 | static long |
6efd877d | 2120 | fixup_segment (fixP, this_segment_type) |
09952cd9 | 2121 | register fixS *fixP; |
6efd877d | 2122 | segT this_segment_type; /* N_TYPE bits for segment. */ |
fecd2382 | 2123 | { |
f5c32424 KR |
2124 | long seg_reloc_count = 0; |
2125 | symbolS *add_symbolP; | |
2126 | symbolS *sub_symbolP; | |
d5364748 | 2127 | valueT add_number; |
f5c32424 KR |
2128 | int size; |
2129 | char *place; | |
2130 | long where; | |
a55774a1 | 2131 | int pcrel, plt; |
f5c32424 KR |
2132 | fragS *fragP; |
2133 | segT add_symbol_segment = absolute_section; | |
2134 | ||
2135 | /* If the linker is doing the relaxing, we must not do any fixups. | |
2136 | ||
2137 | Well, strictly speaking that's not true -- we could do any that are | |
2138 | PC-relative and don't cross regions that could change size. And for the | |
2139 | i960 (the only machine for which we've got a relaxing linker right now), | |
2140 | we might be able to turn callx/callj into bal anyways in cases where we | |
2141 | know the maximum displacement. */ | |
6efd877d | 2142 | if (linkrelax) |
f5c32424 KR |
2143 | { |
2144 | for (; fixP; fixP = fixP->fx_next) | |
2145 | seg_reloc_count++; | |
2146 | TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count); | |
2147 | return seg_reloc_count; | |
2148 | } | |
6efd877d | 2149 | |
f5c32424 KR |
2150 | for (; fixP; fixP = fixP->fx_next) |
2151 | { | |
a55774a1 KR |
2152 | #ifdef DEBUG5 |
2153 | fprintf (stderr, "\nprocessing fixup:\n"); | |
2154 | print_fixup (fixP); | |
2155 | #endif | |
2156 | ||
f5c32424 KR |
2157 | fragP = fixP->fx_frag; |
2158 | know (fragP); | |
2159 | where = fixP->fx_where; | |
2160 | place = fragP->fr_literal + where; | |
2161 | size = fixP->fx_size; | |
2162 | add_symbolP = fixP->fx_addsy; | |
2163 | #ifdef TC_VALIDATE_FIX | |
2164 | TC_VALIDATE_FIX (fixP, this_segment_type, skip); | |
fecd2382 | 2165 | #endif |
f5c32424 KR |
2166 | sub_symbolP = fixP->fx_subsy; |
2167 | add_number = fixP->fx_offset; | |
2168 | pcrel = fixP->fx_pcrel; | |
a55774a1 KR |
2169 | plt = fixP->fx_plt; |
2170 | ||
e120d9fb ILT |
2171 | if (add_symbolP != NULL |
2172 | && add_symbolP->sy_mri_common) | |
1356d77d ILT |
2173 | { |
2174 | know (add_symbolP->sy_value.X_op == O_symbol); | |
2175 | add_number += S_GET_VALUE (add_symbolP); | |
2176 | fixP->fx_offset = add_number; | |
2177 | add_symbolP = fixP->fx_addsy = add_symbolP->sy_value.X_add_symbol; | |
2178 | } | |
2179 | ||
f5c32424 KR |
2180 | if (add_symbolP) |
2181 | add_symbol_segment = S_GET_SEGMENT (add_symbolP); | |
2182 | ||
2183 | if (sub_symbolP) | |
2184 | { | |
f7da4a99 | 2185 | resolve_symbol_value (sub_symbolP); |
f5c32424 KR |
2186 | if (!add_symbolP) |
2187 | { | |
2188 | /* Its just -sym */ | |
2189 | if (S_GET_SEGMENT (sub_symbolP) == absolute_section) | |
6efd877d | 2190 | add_number -= S_GET_VALUE (sub_symbolP); |
f5c32424 KR |
2191 | else if (pcrel |
2192 | && S_GET_SEGMENT (sub_symbolP) == this_segment_type) | |
2193 | { | |
2194 | /* Should try converting to a constant. */ | |
2195 | goto bad_sub_reloc; | |
2196 | } | |
2197 | else | |
2198 | bad_sub_reloc: | |
741f4d66 KR |
2199 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2200 | "Negative of non-absolute symbol %s", | |
2201 | S_GET_NAME (sub_symbolP)); | |
f5c32424 KR |
2202 | } |
2203 | else if ((S_GET_SEGMENT (sub_symbolP) == add_symbol_segment) | |
2204 | && (SEG_NORMAL (add_symbol_segment) | |
2205 | || (add_symbol_segment == absolute_section))) | |
2206 | { | |
2207 | /* Difference of 2 symbols from same segment. | |
2208 | Can't make difference of 2 undefineds: 'value' means | |
2209 | something different for N_UNDF. */ | |
fecd2382 | 2210 | #ifdef TC_I960 |
f5c32424 KR |
2211 | /* Makes no sense to use the difference of 2 arbitrary symbols |
2212 | as the target of a call instruction. */ | |
2213 | if (fixP->fx_tcbit) | |
741f4d66 KR |
2214 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2215 | "callj to difference of 2 symbols"); | |
6efd877d | 2216 | #endif /* TC_I960 */ |
f5c32424 KR |
2217 | add_number += S_GET_VALUE (add_symbolP) - |
2218 | S_GET_VALUE (sub_symbolP); | |
6efd877d | 2219 | |
f5c32424 | 2220 | add_symbolP = NULL; |
c151fd1e | 2221 | pcrel = 0; /* No further pcrel processing. */ |
335d35c8 | 2222 | |
f5c32424 KR |
2223 | /* Let the target machine make the final determination |
2224 | as to whether or not a relocation will be needed to | |
2225 | handle this fixup. */ | |
2226 | if (!TC_FORCE_RELOCATION (fixP)) | |
98c6bbbe | 2227 | { |
c151fd1e | 2228 | fixP->fx_pcrel = 0; |
98c6bbbe KR |
2229 | fixP->fx_addsy = NULL; |
2230 | } | |
f5c32424 KR |
2231 | } |
2232 | else | |
2233 | { | |
2234 | /* Different segments in subtraction. */ | |
2235 | know (!(S_IS_EXTERNAL (sub_symbolP) | |
2236 | && (S_GET_SEGMENT (sub_symbolP) == absolute_section))); | |
2237 | ||
2238 | if ((S_GET_SEGMENT (sub_symbolP) == absolute_section)) | |
2239 | add_number -= S_GET_VALUE (sub_symbolP); | |
6efd877d | 2240 | |
80aab579 | 2241 | #ifdef DIFF_EXPR_OK |
f5c32424 KR |
2242 | else if (S_GET_SEGMENT (sub_symbolP) == this_segment_type |
2243 | #if 0 /* Do this even if it's already described as pc-relative. For example, | |
2244 | on the m68k, an operand of "pc@(foo-.-2)" should address "foo" in a | |
2245 | pc-relative mode. */ | |
2246 | && pcrel | |
0f894895 | 2247 | #endif |
f5c32424 KR |
2248 | ) |
2249 | { | |
2250 | /* Make it pc-relative. */ | |
2251 | add_number += (md_pcrel_from (fixP) | |
2252 | - S_GET_VALUE (sub_symbolP)); | |
2253 | pcrel = 1; | |
2254 | fixP->fx_pcrel = 1; | |
2255 | sub_symbolP = 0; | |
2256 | fixP->fx_subsy = 0; | |
2257 | } | |
98c6bbbe | 2258 | #endif |
d4083e29 KR |
2259 | #ifdef UNDEFINED_DIFFERENCE_OK |
2260 | /* The PA needs this for PIC code generation. We basically | |
2261 | don't want to do anything if we have the difference of two | |
2262 | symbols at this point. */ | |
2263 | else if (1) | |
2264 | { | |
2265 | /* Leave it alone. */ | |
2266 | } | |
2267 | #endif | |
98c6bbbe KR |
2268 | #ifdef BFD_ASSEMBLER |
2269 | else if (fixP->fx_r_type == BFD_RELOC_GPREL32 | |
2270 | || fixP->fx_r_type == BFD_RELOC_GPREL16) | |
2271 | { | |
2272 | /* Leave it alone. */ | |
2273 | } | |
80aab579 | 2274 | #endif |
f5c32424 KR |
2275 | else |
2276 | { | |
2277 | char buf[50]; | |
2278 | sprint_value (buf, fragP->fr_address + where); | |
741f4d66 KR |
2279 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2280 | "Can't emit reloc {- %s-seg symbol \"%s\"} @ file address %s.", | |
2281 | segment_name (S_GET_SEGMENT (sub_symbolP)), | |
2282 | S_GET_NAME (sub_symbolP), buf); | |
f5c32424 KR |
2283 | } |
2284 | } | |
2285 | } | |
6efd877d | 2286 | |
f5c32424 KR |
2287 | if (add_symbolP) |
2288 | { | |
a55774a1 | 2289 | if (add_symbol_segment == this_segment_type && pcrel && !plt |
5767cfb7 | 2290 | && TC_RELOC_RTSYM_LOC_FIXUP (fixP)) |
f5c32424 KR |
2291 | { |
2292 | /* | |
2293 | * This fixup was made when the symbol's segment was | |
2294 | * SEG_UNKNOWN, but it is now in the local segment. | |
2295 | * So we know how to do the address without relocation. | |
2296 | */ | |
fecd2382 | 2297 | #ifdef TC_I960 |
f5c32424 KR |
2298 | /* reloc_callj() may replace a 'call' with a 'calls' or a |
2299 | 'bal', in which cases it modifies *fixP as appropriate. | |
2300 | In the case of a 'calls', no further work is required, | |
2301 | and *fixP has been set up to make the rest of the code | |
2302 | below a no-op. */ | |
2303 | reloc_callj (fixP); | |
fecd2382 | 2304 | #endif /* TC_I960 */ |
6efd877d | 2305 | |
f5c32424 KR |
2306 | add_number += S_GET_VALUE (add_symbolP); |
2307 | add_number -= md_pcrel_from (fixP); | |
2308 | pcrel = 0; /* Lie. Don't want further pcrel processing. */ | |
2309 | ||
2310 | /* Let the target machine make the final determination | |
2311 | as to whether or not a relocation will be needed to | |
2312 | handle this fixup. */ | |
2313 | if (!TC_FORCE_RELOCATION (fixP)) | |
98c6bbbe KR |
2314 | { |
2315 | fixP->fx_pcrel = 0; | |
2316 | fixP->fx_addsy = NULL; | |
2317 | } | |
f5c32424 KR |
2318 | } |
2319 | else | |
2320 | { | |
2321 | if (add_symbol_segment == absolute_section) | |
2322 | { | |
fecd2382 | 2323 | #ifdef TC_I960 |
f5c32424 KR |
2324 | /* See comment about reloc_callj() above. */ |
2325 | reloc_callj (fixP); | |
fecd2382 | 2326 | #endif /* TC_I960 */ |
f5c32424 KR |
2327 | add_number += S_GET_VALUE (add_symbolP); |
2328 | ||
2329 | /* Let the target machine make the final determination | |
2330 | as to whether or not a relocation will be needed to | |
2331 | handle this fixup. */ | |
305a3af6 | 2332 | |
f00f5ecd | 2333 | if (!TC_FORCE_RELOCATION (fixP)) |
e67a0640 KR |
2334 | { |
2335 | fixP->fx_addsy = NULL; | |
2336 | add_symbolP = NULL; | |
2337 | } | |
f5c32424 KR |
2338 | } |
2339 | else if (add_symbol_segment == undefined_section | |
43ca9aa6 | 2340 | #ifdef BFD_ASSEMBLER |
f5c32424 | 2341 | || bfd_is_com_section (add_symbol_segment) |
43ca9aa6 | 2342 | #endif |
f5c32424 KR |
2343 | ) |
2344 | { | |
fecd2382 | 2345 | #ifdef TC_I960 |
f5c32424 KR |
2346 | if ((int) fixP->fx_bit_fixP == 13) |
2347 | { | |
2348 | /* This is a COBR instruction. They have only a | |
2349 | * 13-bit displacement and are only to be used | |
2350 | * for local branches: flag as error, don't generate | |
2351 | * relocation. | |
2352 | */ | |
741f4d66 KR |
2353 | as_bad_where (fixP->fx_file, fixP->fx_line, |
2354 | "can't use COBR format with external label"); | |
98c6bbbe KR |
2355 | fixP->fx_addsy = NULL; |
2356 | fixP->fx_done = 1; | |
f5c32424 KR |
2357 | continue; |
2358 | } /* COBR */ | |
fecd2382 | 2359 | #endif /* TC_I960 */ |
f5c32424 | 2360 | |
fecd2382 | 2361 | #ifdef OBJ_COFF |
c593cf41 | 2362 | #ifdef TE_I386AIX |
f5c32424 KR |
2363 | if (S_IS_COMMON (add_symbolP)) |
2364 | add_number += S_GET_VALUE (add_symbolP); | |
c593cf41 | 2365 | #endif /* TE_I386AIX */ |
fecd2382 | 2366 | #endif /* OBJ_COFF */ |
f5c32424 KR |
2367 | ++seg_reloc_count; |
2368 | } | |
2369 | else | |
2370 | { | |
2371 | seg_reloc_count++; | |
a55774a1 | 2372 | #if !defined (TC_I386) || !(defined (OBJ_ELF) || defined (OBJ_COFF)) |
f5c32424 | 2373 | add_number += S_GET_VALUE (add_symbolP); |
a55774a1 | 2374 | #endif |
f5c32424 KR |
2375 | } |
2376 | } | |
2377 | } | |
6efd877d | 2378 | |
f5c32424 KR |
2379 | if (pcrel) |
2380 | { | |
2381 | add_number -= md_pcrel_from (fixP); | |
2382 | if (add_symbolP == 0) | |
2383 | { | |
1cf7548e | 2384 | #ifndef BFD_ASSEMBLER |
f5c32424 | 2385 | fixP->fx_addsy = &abs_symbol; |
1cf7548e KR |
2386 | #else |
2387 | fixP->fx_addsy = section_symbol (absolute_section); | |
2388 | #endif | |
2389 | fixP->fx_addsy->sy_used_in_reloc = 1; | |
f5c32424 | 2390 | ++seg_reloc_count; |
98c6bbbe KR |
2391 | } |
2392 | } | |
6efd877d | 2393 | |
c7d7eed0 | 2394 | if (!fixP->fx_bit_fixP && !fixP->fx_no_overflow && size > 0) |
f5c32424 KR |
2395 | { |
2396 | valueT mask = 0; | |
df44a852 | 2397 | if (size < sizeof (mask)) |
f5c32424 | 2398 | { |
df44a852 KR |
2399 | /* set all bits to one */ |
2400 | mask--; | |
2401 | /* Technically, combining these produces an undefined result | |
2402 | if size is sizeof (valueT), though I think these two | |
2403 | half-way operations should both be defined. And the | |
2404 | compiler should be able to combine them if it's valid on | |
2405 | the host architecture. */ | |
2406 | mask <<= size * 4; | |
2407 | mask <<= size * 4; | |
2408 | if ((add_number & mask) != 0 | |
2409 | && (add_number & mask) != mask) | |
2410 | { | |
2411 | char buf[50], buf2[50]; | |
2412 | sprint_value (buf, fragP->fr_address + where); | |
2413 | if (add_number > 1000) | |
2414 | sprint_value (buf2, add_number); | |
2415 | else | |
2416 | sprintf (buf2, "%ld", (long) add_number); | |
2417 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
2418 | "Value of %s too large for field of %d bytes at %s", | |
2419 | buf2, size, buf); | |
2420 | } /* generic error checking */ | |
2421 | } | |
f5c32424 KR |
2422 | #ifdef WARN_SIGNED_OVERFLOW_WORD |
2423 | /* Warn if a .word value is too large when treated as a signed | |
2424 | number. We already know it is not too negative. This is to | |
2425 | catch over-large switches generated by gcc on the 68k. */ | |
def66e24 | 2426 | if (!flag_signed_overflow_ok |
f5c32424 KR |
2427 | && size == 2 |
2428 | && add_number > 0x7fff) | |
2429 | as_bad_where (fixP->fx_file, fixP->fx_line, | |
2430 | "Signed .word overflow; switch may be too large; %ld at 0x%lx", | |
2431 | (long) add_number, | |
2432 | (unsigned long) (fragP->fr_address + where)); | |
6efd877d | 2433 | #endif |
f5c32424 | 2434 | } /* not a bit fix */ |
6efd877d | 2435 | |
98c6bbbe KR |
2436 | if (!fixP->fx_done) |
2437 | { | |
3f81f3cf MM |
2438 | #ifdef MD_APPLY_FIX3 |
2439 | md_apply_fix3 (fixP, &add_number, this_segment_type); | |
2440 | #else | |
43ca9aa6 | 2441 | #ifdef BFD_ASSEMBLER |
98c6bbbe | 2442 | md_apply_fix (fixP, &add_number); |
43ca9aa6 | 2443 | #else |
98c6bbbe KR |
2444 | md_apply_fix (fixP, add_number); |
2445 | #endif | |
3f81f3cf | 2446 | #endif |
98c6bbbe KR |
2447 | |
2448 | #ifndef TC_HANDLES_FX_DONE | |
2449 | /* If the tc-* files haven't been converted, assume it's handling | |
2450 | it the old way, where a null fx_addsy means that the fix has | |
2451 | been applied completely, and no further work is needed. */ | |
2452 | if (fixP->fx_addsy == 0 && fixP->fx_pcrel == 0) | |
2453 | fixP->fx_done = 1; | |
43ca9aa6 | 2454 | #endif |
98c6bbbe KR |
2455 | } |
2456 | #ifdef TC_VALIDATE_FIX | |
a55774a1 KR |
2457 | skip: ; |
2458 | #endif | |
2459 | #ifdef DEBUG5 | |
2460 | fprintf (stderr, "result:\n"); | |
2461 | print_fixup (fixP); | |
98c6bbbe | 2462 | #endif |
f5c32424 | 2463 | } /* For each fixS in this segment. */ |
6efd877d | 2464 | |
f5c32424 KR |
2465 | TC_ADJUST_RELOC_COUNT (fixP, seg_reloc_count); |
2466 | return seg_reloc_count; | |
2467 | } | |
6efd877d | 2468 | |
3f81f3cf | 2469 | #endif /* defined (BFD_ASSEMBLER) || (!defined (BFD) && !defined (OBJ_VMS)) */ |
6efd877d | 2470 | |
f5c32424 KR |
2471 | void |
2472 | number_to_chars_bigendian (buf, val, n) | |
2473 | char *buf; | |
2474 | valueT val; | |
2475 | int n; | |
2476 | { | |
2477 | if (n > sizeof (val)|| n <= 0) | |
2478 | abort (); | |
2479 | while (n--) | |
2480 | { | |
2481 | buf[n] = val & 0xff; | |
2482 | val >>= 8; | |
2483 | } | |
d5364748 | 2484 | } |
fecd2382 | 2485 | |
f5c32424 KR |
2486 | void |
2487 | number_to_chars_littleendian (buf, val, n) | |
2488 | char *buf; | |
2489 | valueT val; | |
2490 | int n; | |
2491 | { | |
2492 | if (n > sizeof (val) || n <= 0) | |
2493 | abort (); | |
2494 | while (n--) | |
2495 | { | |
2496 | *buf++ = val & 0xff; | |
2497 | val >>= 8; | |
2498 | } | |
2499 | } | |
80aab579 | 2500 | |
4acf8c78 KR |
2501 | /* for debugging */ |
2502 | extern int indent_level; | |
b04bc423 | 2503 | extern void print_symbol_value_1 (); |
4acf8c78 KR |
2504 | |
2505 | void | |
2506 | print_fixup (fixp) | |
2507 | fixS *fixp; | |
2508 | { | |
2509 | indent_level = 1; | |
a55774a1 | 2510 | fprintf (stderr, "fix %lx %s:%d", (long) fixp, fixp->fx_file, fixp->fx_line); |
4acf8c78 KR |
2511 | if (fixp->fx_pcrel) |
2512 | fprintf (stderr, " pcrel"); | |
2513 | if (fixp->fx_pcrel_adjust) | |
2514 | fprintf (stderr, " pcrel_adjust=%d", fixp->fx_pcrel_adjust); | |
2515 | if (fixp->fx_im_disp) | |
2516 | { | |
2517 | #ifdef TC_NS32K | |
2518 | fprintf (stderr, " im_disp=%d", fixp->fx_im_disp); | |
2519 | #else | |
2520 | fprintf (stderr, " im_disp"); | |
2521 | #endif | |
2522 | } | |
2523 | if (fixp->fx_tcbit) | |
2524 | fprintf (stderr, " tcbit"); | |
2525 | if (fixp->fx_done) | |
2526 | fprintf (stderr, " done"); | |
a55774a1 KR |
2527 | fprintf (stderr, "\n size=%d frag=%lx where=%ld offset=%lx addnumber=%lx", |
2528 | fixp->fx_size, (long) fixp->fx_frag, (long) fixp->fx_where, | |
2529 | (long) fixp->fx_offset, (long) fixp->fx_addnumber); | |
9dc6c00f KR |
2530 | #ifdef BFD_ASSEMBLER |
2531 | fprintf (stderr, "\n %s (%d)", bfd_get_reloc_code_name (fixp->fx_r_type), | |
2532 | fixp->fx_r_type); | |
2533 | #else | |
a55774a1 | 2534 | #ifdef NEED_FX_R_TYPE |
9dc6c00f | 2535 | fprintf (stderr, " r_type=%d", fixp->fx_r_type); |
a55774a1 | 2536 | #endif |
9dc6c00f KR |
2537 | #endif |
2538 | if (fixp->fx_addsy) | |
2539 | { | |
a55774a1 | 2540 | fprintf (stderr, "\n +<"); |
9dc6c00f KR |
2541 | print_symbol_value_1 (stderr, fixp->fx_addsy); |
2542 | fprintf (stderr, ">"); | |
2543 | } | |
a55774a1 KR |
2544 | if (fixp->fx_subsy) |
2545 | { | |
2546 | fprintf (stderr, "\n -<"); | |
2547 | print_symbol_value_1 (stderr, fixp->fx_subsy); | |
2548 | fprintf (stderr, ">"); | |
2549 | } | |
9dc6c00f | 2550 | fprintf (stderr, "\n"); |
4acf8c78 KR |
2551 | } |
2552 | ||
fecd2382 | 2553 | /* end of write.c */ |