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