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Fix PRs 14721, 14722, 14723
[deliverable/binutils-gdb.git] / gas / config / tc-v850.c
1 /* tc-v850.c -- Assembler code for the NEC V850
2 Copyright (C) 1996, 1997 Free Software Foundation.
3
4 This file is part of GAS, the GNU Assembler.
5
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 #include <stdio.h>
22 #include <ctype.h>
23 #include "as.h"
24 #include "subsegs.h"
25 #include "opcode/v850.h"
26
27 #define AREA_ZDA 0
28 #define AREA_SDA 1
29 #define AREA_TDA 2
30
31 /* sign-extend a 16-bit number */
32 #define SEXT16(x) ((((x) & 0xffff) ^ (~ 0x7fff)) + 0x8000)
33
34 /* Temporarily holds the reloc in a cons expression. */
35 static bfd_reloc_code_real_type hold_cons_reloc;
36
37 /* Set to TRUE if we want to be pedantic about signed overflows. */
38 static boolean warn_signed_overflows = FALSE;
39 static boolean warn_unsigned_overflows = FALSE;
40
41 /* Indicates the target BFD machine number. */
42 static int machine = -1;
43
44 /* Indicates the target processor(s) for the assemble. */
45 static unsigned int processor_mask = -1;
46
47 \f
48 /* Structure to hold information about predefined registers. */
49 struct reg_name
50 {
51 const char * name;
52 int value;
53 };
54
55 /* Generic assembler global variables which must be defined by all targets. */
56
57 /* Characters which always start a comment. */
58 const char comment_chars[] = "#";
59
60 /* Characters which start a comment at the beginning of a line. */
61 const char line_comment_chars[] = ";#";
62
63 /* Characters which may be used to separate multiple commands on a
64 single line. */
65 const char line_separator_chars[] = ";";
66
67 /* Characters which are used to indicate an exponent in a floating
68 point number. */
69 const char EXP_CHARS[] = "eE";
70
71 /* Characters which mean that a number is a floating point constant,
72 as in 0d1.0. */
73 const char FLT_CHARS[] = "dD";
74 \f
75
76 const relax_typeS md_relax_table[] =
77 {
78 /* Conditional branches. */
79 {0xff, -0x100, 2, 1},
80 {0x1fffff, -0x200000, 6, 0},
81 /* Unconditional branches. */
82 {0xff, -0x100, 2, 3},
83 {0x1fffff, -0x200000, 4, 0},
84 };
85
86
87 static segT sdata_section = NULL;
88 static segT tdata_section = NULL;
89 static segT zdata_section = NULL;
90 static segT sbss_section = NULL;
91 static segT tbss_section = NULL;
92 static segT zbss_section = NULL;
93 static segT rosdata_section = NULL;
94 static segT rozdata_section = NULL;
95 static segT scommon_section = NULL;
96 static segT tcommon_section = NULL;
97 static segT zcommon_section = NULL;
98 /* start-sanitize-v850e */
99 static segT call_table_data_section = NULL;
100 static segT call_table_text_section = NULL;
101 /* end-sanitize-v850e */
102
103
104 /* local functions */
105 static unsigned long v850_insert_operand
106 PARAMS ((unsigned long insn, const struct v850_operand *operand,
107 offsetT val, char *file, unsigned int line));
108
109
110 /* fixups */
111 #define MAX_INSN_FIXUPS (5)
112 struct v850_fixup
113 {
114 expressionS exp;
115 int opindex;
116 bfd_reloc_code_real_type reloc;
117 };
118 struct v850_fixup fixups[MAX_INSN_FIXUPS];
119 static int fc;
120 \f
121 void
122 v850_sdata (int ignore)
123 {
124 obj_elf_section_change_hook();
125
126 subseg_set (sdata_section, (subsegT) get_absolute_expression ());
127
128 demand_empty_rest_of_line ();
129 }
130
131 void
132 v850_tdata (int ignore)
133 {
134 obj_elf_section_change_hook();
135
136 subseg_set (tdata_section, (subsegT) get_absolute_expression ());
137
138 demand_empty_rest_of_line ();
139 }
140
141 void
142 v850_zdata (int ignore)
143 {
144 obj_elf_section_change_hook();
145
146 subseg_set (zdata_section, (subsegT) get_absolute_expression ());
147
148 demand_empty_rest_of_line ();
149 }
150
151 void
152 v850_sbss (int ignore)
153 {
154 obj_elf_section_change_hook();
155
156 subseg_set (sbss_section, (subsegT) get_absolute_expression ());
157
158 demand_empty_rest_of_line ();
159 }
160
161 void
162 v850_tbss (int ignore)
163 {
164 obj_elf_section_change_hook();
165
166 subseg_set (tbss_section, (subsegT) get_absolute_expression ());
167
168 demand_empty_rest_of_line ();
169 }
170
171 void
172 v850_zbss (int ignore)
173 {
174 obj_elf_section_change_hook();
175
176 subseg_set (zbss_section, (subsegT) get_absolute_expression ());
177
178 demand_empty_rest_of_line ();
179 }
180
181 void
182 v850_rosdata (int ignore)
183 {
184 obj_elf_section_change_hook();
185
186 subseg_set (rosdata_section, (subsegT) get_absolute_expression ());
187
188 demand_empty_rest_of_line ();
189 }
190
191 void
192 v850_rozdata (int ignore)
193 {
194 obj_elf_section_change_hook();
195
196 subseg_set (rozdata_section, (subsegT) get_absolute_expression ());
197
198 demand_empty_rest_of_line ();
199 }
200
201 /* start-sanitize-v850e */
202 void
203 v850_call_table_data (int ignore)
204 {
205 obj_elf_section_change_hook();
206
207 subseg_set (call_table_data_section, (subsegT) get_absolute_expression ());
208
209 demand_empty_rest_of_line ();
210 }
211
212 void
213 v850_call_table_text (int ignore)
214 {
215 obj_elf_section_change_hook();
216
217 subseg_set (call_table_text_section, (subsegT) get_absolute_expression ());
218
219 demand_empty_rest_of_line ();
220 }
221 /* end-sanitize-v850e */
222
223 void
224 v850_bss (int ignore)
225 {
226 register int temp = get_absolute_expression ();
227
228 obj_elf_section_change_hook();
229
230 subseg_set (bss_section, (subsegT) temp);
231
232 demand_empty_rest_of_line ();
233 }
234
235 void
236 v850_offset (int ignore)
237 {
238 int temp = get_absolute_expression ();
239
240 temp -= frag_now_fix();
241
242 if (temp > 0)
243 (void) frag_more (temp);
244
245 demand_empty_rest_of_line ();
246 }
247
248 /* Copied from obj_elf_common() in gas/config/obj-elf.c */
249 static void
250 v850_comm (area)
251 int area;
252 {
253 char * name;
254 char c;
255 char * p;
256 int temp;
257 int size;
258 symbolS * symbolP;
259 int have_align;
260
261 name = input_line_pointer;
262 c = get_symbol_end ();
263 /* just after name is now '\0' */
264 p = input_line_pointer;
265 *p = c;
266 SKIP_WHITESPACE ();
267 if (*input_line_pointer != ',')
268 {
269 as_bad ("Expected comma after symbol-name");
270 ignore_rest_of_line ();
271 return;
272 }
273 input_line_pointer++; /* skip ',' */
274 if ((temp = get_absolute_expression ()) < 0)
275 {
276 as_bad (".COMMon length (%d.) <0! Ignored.", temp);
277 ignore_rest_of_line ();
278 return;
279 }
280 size = temp;
281 *p = 0;
282 symbolP = symbol_find_or_make (name);
283 *p = c;
284 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
285 {
286 as_bad ("Ignoring attempt to re-define symbol");
287 ignore_rest_of_line ();
288 return;
289 }
290 if (S_GET_VALUE (symbolP) != 0)
291 {
292 if (S_GET_VALUE (symbolP) != size)
293 {
294 as_warn ("Length of .comm \"%s\" is already %ld. Not changed to %d.",
295 S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size);
296 }
297 }
298 know (symbolP->sy_frag == &zero_address_frag);
299 if (*input_line_pointer != ',')
300 have_align = 0;
301 else
302 {
303 have_align = 1;
304 input_line_pointer++;
305 SKIP_WHITESPACE ();
306 }
307 if (! have_align || *input_line_pointer != '"')
308 {
309 if (! have_align)
310 temp = 0;
311 else
312 {
313 temp = get_absolute_expression ();
314 if (temp < 0)
315 {
316 temp = 0;
317 as_warn ("Common alignment negative; 0 assumed");
318 }
319 }
320 if (symbolP->local)
321 {
322 segT old_sec;
323 int old_subsec;
324 char * pfrag;
325 int align;
326
327 /* allocate_bss: */
328 old_sec = now_seg;
329 old_subsec = now_subseg;
330 if (temp)
331 {
332 /* convert to a power of 2 alignment */
333 for (align = 0; (temp & 1) == 0; temp >>= 1, ++align);
334 if (temp != 1)
335 {
336 as_bad ("Common alignment not a power of 2");
337 ignore_rest_of_line ();
338 return;
339 }
340 }
341 else
342 align = 0;
343 switch (area)
344 {
345 case AREA_SDA:
346 record_alignment (sbss_section, align);
347 obj_elf_section_change_hook();
348 subseg_set (sbss_section, 0);
349 break;
350
351 case AREA_ZDA:
352 record_alignment (zbss_section, align);
353 obj_elf_section_change_hook();
354 subseg_set (zbss_section, 0);
355 break;
356
357 case AREA_TDA:
358 record_alignment (tbss_section, align);
359 obj_elf_section_change_hook();
360 subseg_set (tbss_section, 0);
361 break;
362
363 default:
364 abort();
365 }
366
367 if (align)
368 frag_align (align, 0, 0);
369
370 switch (area)
371 {
372 case AREA_SDA:
373 if (S_GET_SEGMENT (symbolP) == sbss_section)
374 symbolP->sy_frag->fr_symbol = 0;
375 break;
376
377 case AREA_ZDA:
378 if (S_GET_SEGMENT (symbolP) == zbss_section)
379 symbolP->sy_frag->fr_symbol = 0;
380 break;
381
382 case AREA_TDA:
383 if (S_GET_SEGMENT (symbolP) == tbss_section)
384 symbolP->sy_frag->fr_symbol = 0;
385 break;
386
387 default:
388 abort();
389 }
390
391 symbolP->sy_frag = frag_now;
392 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
393 (offsetT) size, (char *) 0);
394 *pfrag = 0;
395 S_SET_SIZE (symbolP, size);
396
397 switch (area)
398 {
399 case AREA_SDA: S_SET_SEGMENT (symbolP, sbss_section); break;
400 case AREA_ZDA: S_SET_SEGMENT (symbolP, zbss_section); break;
401 case AREA_TDA: S_SET_SEGMENT (symbolP, tbss_section); break;
402 default:
403 abort();
404 }
405
406 S_CLEAR_EXTERNAL (symbolP);
407 obj_elf_section_change_hook();
408 subseg_set (old_sec, old_subsec);
409 }
410 else
411 {
412 allocate_common:
413 S_SET_VALUE (symbolP, (valueT) size);
414 S_SET_ALIGN (symbolP, temp);
415 S_SET_EXTERNAL (symbolP);
416
417 switch (area)
418 {
419 case AREA_SDA: S_SET_SEGMENT (symbolP, scommon_section); break;
420 case AREA_ZDA: S_SET_SEGMENT (symbolP, zcommon_section); break;
421 case AREA_TDA: S_SET_SEGMENT (symbolP, tcommon_section); break;
422 default:
423 abort();
424 }
425 }
426 }
427 else
428 {
429 input_line_pointer++;
430 /* @@ Some use the dot, some don't. Can we get some consistency?? */
431 if (*input_line_pointer == '.')
432 input_line_pointer++;
433 /* @@ Some say data, some say bss. */
434 if (strncmp (input_line_pointer, "bss\"", 4)
435 && strncmp (input_line_pointer, "data\"", 5))
436 {
437 while (*--input_line_pointer != '"')
438 ;
439 input_line_pointer--;
440 goto bad_common_segment;
441 }
442 while (*input_line_pointer++ != '"')
443 ;
444 goto allocate_common;
445 }
446
447 symbolP->bsym->flags |= BSF_OBJECT;
448
449 demand_empty_rest_of_line ();
450 return;
451
452 {
453 bad_common_segment:
454 p = input_line_pointer;
455 while (*p && *p != '\n')
456 p++;
457 c = *p;
458 *p = '\0';
459 as_bad ("bad .common segment %s", input_line_pointer + 1);
460 *p = c;
461 input_line_pointer = p;
462 ignore_rest_of_line ();
463 return;
464 }
465 }
466
467 void
468 set_machine (int number)
469 {
470 machine = number;
471 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
472
473 switch (machine)
474 {
475 case 0: processor_mask = PROCESSOR_V850; break;
476 /* start-sanitize-v850e */
477 case bfd_mach_v850e: processor_mask = PROCESSOR_V850E; break;
478 case bfd_mach_v850ea: processor_mask = PROCESSOR_V850EA; break;
479 /* end-sanitize-v850e */
480 }
481 }
482
483 /* The target specific pseudo-ops which we support. */
484 const pseudo_typeS md_pseudo_table[] =
485 {
486 {"sdata", v850_sdata, 0},
487 {"tdata", v850_tdata, 0},
488 {"zdata", v850_zdata, 0},
489 {"sbss", v850_sbss, 0},
490 {"tbss", v850_tbss, 0},
491 {"zbss", v850_zbss, 0},
492 {"rosdata", v850_rosdata, 0},
493 {"rozdata", v850_rozdata, 0},
494 {"bss", v850_bss, 0},
495 {"offset", v850_offset, 0},
496 {"word", cons, 4},
497 {"zcomm", v850_comm, AREA_ZDA},
498 {"scomm", v850_comm, AREA_SDA},
499 {"tcomm", v850_comm, AREA_TDA},
500 {"v850", set_machine, 0},
501 /* start-sanitize-v850e */
502 {"call_table_data", v850_call_table_data, 0},
503 {"call_table_text", v850_call_table_text, 0},
504 {"v850e", set_machine, bfd_mach_v850e},
505 {"v850ea", set_machine, bfd_mach_v850ea},
506 /* end-sanitize-v850e */
507 { NULL, NULL, 0}
508 };
509
510 /* Opcode hash table. */
511 static struct hash_control *v850_hash;
512
513 /* This table is sorted. Suitable for searching by a binary search. */
514 static const struct reg_name pre_defined_registers[] =
515 {
516 { "ep", 30 }, /* ep - element ptr */
517 { "gp", 4 }, /* gp - global ptr */
518 { "hp", 2 }, /* hp - handler stack ptr */
519 { "lp", 31 }, /* lp - link ptr */
520 { "r0", 0 },
521 { "r1", 1 },
522 { "r10", 10 },
523 { "r11", 11 },
524 { "r12", 12 },
525 { "r13", 13 },
526 { "r14", 14 },
527 { "r15", 15 },
528 { "r16", 16 },
529 { "r17", 17 },
530 { "r18", 18 },
531 { "r19", 19 },
532 { "r2", 2 },
533 { "r20", 20 },
534 { "r21", 21 },
535 { "r22", 22 },
536 { "r23", 23 },
537 { "r24", 24 },
538 { "r25", 25 },
539 { "r26", 26 },
540 { "r27", 27 },
541 { "r28", 28 },
542 { "r29", 29 },
543 { "r3", 3 },
544 { "r30", 30 },
545 { "r31", 31 },
546 { "r4", 4 },
547 { "r5", 5 },
548 { "r6", 6 },
549 { "r7", 7 },
550 { "r8", 8 },
551 { "r9", 9 },
552 { "sp", 3 }, /* sp - stack ptr */
553 { "tp", 5 }, /* tp - text ptr */
554 { "zero", 0 },
555 };
556 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct reg_name))
557
558
559 static const struct reg_name system_registers[] =
560 {
561 /* start-sanitize-v850e */
562 { "ctbp", 20 },
563 { "ctpc", 16 },
564 { "ctpsw", 17 },
565 { "dbpc", 18 },
566 { "dbpsw", 19 },
567 /* end-sanitize-v850e */
568 { "ecr", 4 },
569 { "eipc", 0 },
570 { "eipsw", 1 },
571 { "fepc", 2 },
572 { "fepsw", 3 },
573 { "psw", 5 },
574 };
575 #define SYSREG_NAME_CNT (sizeof (system_registers) / sizeof (struct reg_name))
576
577 /* start-sanitize-v850e */
578 static const struct reg_name system_list_registers[] =
579 {
580 {"PS", 5 },
581 {"SR", 0 + 1}
582 };
583 #define SYSREGLIST_NAME_CNT (sizeof (system_list_registers) / sizeof (struct reg_name))
584 /* end-sanitize-v850e */
585
586 static const struct reg_name cc_names[] =
587 {
588 { "c", 0x1 },
589 { "e", 0x2 },
590 { "ge", 0xe },
591 { "gt", 0xf },
592 { "h", 0xb },
593 { "l", 0x1 },
594 { "le", 0x7 },
595 { "lt", 0x6 },
596 { "n", 0x4 },
597 { "nc", 0x9 },
598 { "ne", 0xa },
599 { "nh", 0x3 },
600 { "nl", 0x9 },
601 { "ns", 0xc },
602 { "nv", 0x8 },
603 { "nz", 0xa },
604 { "p", 0xc },
605 { "s", 0x4 },
606 { "sa", 0xd },
607 { "t", 0x5 },
608 { "v", 0x0 },
609 { "z", 0x2 },
610 };
611 #define CC_NAME_CNT (sizeof (cc_names) / sizeof (struct reg_name))
612
613 /* reg_name_search does a binary search of the given register table
614 to see if "name" is a valid regiter name. Returns the register
615 number from the array on success, or -1 on failure. */
616
617 static int
618 reg_name_search (regs, regcount, name, accept_numbers)
619 const struct reg_name * regs;
620 int regcount;
621 const char * name;
622 boolean accept_numbers;
623 {
624 int middle, low, high;
625 int cmp;
626 symbolS * symbolP;
627
628 /* If the register name is a symbol, then evaluate it. */
629 if ((symbolP = symbol_find (name)) != NULL)
630 {
631 /* If the symbol is an alias for another name then use that.
632 If the symbol is an alias for a number, then return the number. */
633 if (symbolP->sy_value.X_op == O_symbol)
634 {
635 name = S_GET_NAME (symbolP->sy_value.X_add_symbol);
636 }
637 else if (accept_numbers)
638 {
639 int reg = S_GET_VALUE (symbolP);
640
641 if (reg >= 0 && reg <= 31)
642 return reg;
643 }
644 }
645
646 low = 0;
647 high = regcount - 1;
648
649 do
650 {
651 middle = (low + high) / 2;
652 cmp = strcasecmp (name, regs[middle].name);
653 if (cmp < 0)
654 high = middle - 1;
655 else if (cmp > 0)
656 low = middle + 1;
657 else
658 return regs[middle].value;
659 }
660 while (low <= high);
661 return -1;
662 }
663
664
665 /* Summary of register_name().
666 *
667 * in: Input_line_pointer points to 1st char of operand.
668 *
669 * out: A expressionS.
670 * The operand may have been a register: in this case, X_op == O_register,
671 * X_add_number is set to the register number, and truth is returned.
672 * Input_line_pointer->(next non-blank) char after operand, or is in
673 * its original state.
674 */
675 static boolean
676 register_name (expressionP)
677 expressionS * expressionP;
678 {
679 int reg_number;
680 char * name;
681 char * start;
682 char c;
683
684 /* Find the spelling of the operand */
685 start = name = input_line_pointer;
686
687 c = get_symbol_end ();
688
689 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name, FALSE);
690
691 * input_line_pointer = c; /* put back the delimiting char */
692
693 /* look to see if it's in the register table */
694 if (reg_number >= 0)
695 {
696 expressionP->X_op = O_register;
697 expressionP->X_add_number = reg_number;
698
699 /* make the rest nice */
700 expressionP->X_add_symbol = NULL;
701 expressionP->X_op_symbol = NULL;
702
703 return true;
704 }
705 else
706 {
707 /* reset the line as if we had not done anything */
708 input_line_pointer = start;
709
710 return false;
711 }
712 }
713
714 /* Summary of system_register_name().
715 *
716 * in: Input_line_pointer points to 1st char of operand.
717 * expressionP points to an expression structure to be filled in.
718 * accept_numbers is true iff numerical register names may be used.
719 * start-sanitize-v850e
720 * accept_list_names is true iff the special names PS and SR may be
721 * accepted.
722 * end-sanitize-v850e
723 *
724 * out: A expressionS structure in expressionP.
725 * The operand may have been a register: in this case, X_op == O_register,
726 * X_add_number is set to the register number, and truth is returned.
727 * Input_line_pointer->(next non-blank) char after operand, or is in
728 * its original state.
729 */
730 static boolean
731 system_register_name (expressionP, accept_numbers
732 /* start-sanitize-v850e */
733 , accept_list_names
734 /* end-sanitize-v850e */
735 )
736 expressionS * expressionP;
737 boolean accept_numbers;
738 /* start-sanitize-v850e */
739 boolean accept_list_names;
740 /* end-sanitize-v850e */
741 {
742 int reg_number;
743 char * name;
744 char * start;
745 char c;
746
747 /* Find the spelling of the operand */
748 start = name = input_line_pointer;
749
750 c = get_symbol_end ();
751 reg_number = reg_name_search (system_registers, SYSREG_NAME_CNT, name, accept_numbers);
752
753 * input_line_pointer = c; /* put back the delimiting char */
754
755 if (reg_number < 0
756 && accept_numbers)
757 {
758 input_line_pointer = start; /* reset input_line pointer */
759
760 if (isdigit (* input_line_pointer))
761 {
762 reg_number = strtol (input_line_pointer, & input_line_pointer, 10);
763
764 /* Make sure that the register number is allowable. */
765 if ( reg_number < 0
766 || reg_number > 5
767 /* start-sanitize-v850e */
768 && reg_number < 16
769 || reg_number > 20
770 /* end-sanitize-v850e */
771 )
772 {
773 reg_number = -1;
774 }
775 }
776 /* start-sanitize-v850e */
777 else if (accept_list_names)
778 {
779 c = get_symbol_end ();
780 reg_number = reg_name_search (system_list_registers, SYSREGLIST_NAME_CNT, name, FALSE);
781
782 * input_line_pointer = c; /* put back the delimiting char */
783 }
784 /* end-sanitize-v850e */
785 }
786
787 /* look to see if it's in the register table */
788 if (reg_number >= 0)
789 {
790 expressionP->X_op = O_register;
791 expressionP->X_add_number = reg_number;
792
793 /* make the rest nice */
794 expressionP->X_add_symbol = NULL;
795 expressionP->X_op_symbol = NULL;
796
797 return true;
798 }
799 else
800 {
801 /* reset the line as if we had not done anything */
802 input_line_pointer = start;
803
804 return false;
805 }
806 }
807
808 /* Summary of cc_name().
809 *
810 * in: Input_line_pointer points to 1st char of operand.
811 *
812 * out: A expressionS.
813 * The operand may have been a register: in this case, X_op == O_register,
814 * X_add_number is set to the register number, and truth is returned.
815 * Input_line_pointer->(next non-blank) char after operand, or is in
816 * its original state.
817 */
818 static boolean
819 cc_name (expressionP)
820 expressionS * expressionP;
821 {
822 int reg_number;
823 char * name;
824 char * start;
825 char c;
826
827 /* Find the spelling of the operand */
828 start = name = input_line_pointer;
829
830 c = get_symbol_end ();
831 reg_number = reg_name_search (cc_names, CC_NAME_CNT, name, FALSE);
832
833 * input_line_pointer = c; /* put back the delimiting char */
834
835 /* look to see if it's in the register table */
836 if (reg_number >= 0)
837 {
838 expressionP->X_op = O_constant;
839 expressionP->X_add_number = reg_number;
840
841 /* make the rest nice */
842 expressionP->X_add_symbol = NULL;
843 expressionP->X_op_symbol = NULL;
844
845 return true;
846 }
847 else
848 {
849 /* reset the line as if we had not done anything */
850 input_line_pointer = start;
851
852 return false;
853 }
854 }
855
856 static void
857 skip_white_space (void)
858 {
859 while ( * input_line_pointer == ' '
860 || * input_line_pointer == '\t')
861 ++ input_line_pointer;
862 }
863
864 /* start-sanitize-v850e */
865 /* Summary of parse_register_list ().
866 *
867 * in: Input_line_pointer points to 1st char of a list of registers.
868 * insn is the partially constructed instruction.
869 * operand is the operand being inserted.
870 *
871 * out: NULL if the parse completed successfully, otherwise a
872 * pointer to an error message is returned. If the parse
873 * completes the correct bit fields in the instruction
874 * will be filled in.
875 *
876 * Parses register lists with the syntax:
877 *
878 * { rX }
879 * { rX, rY }
880 * { rX - rY }
881 * { rX - rY, rZ }
882 * etc
883 *
884 * and also parses constant epxressions whoes bits indicate the
885 * registers in the lists. The LSB in the expression refers to
886 * the lowest numbered permissable register in the register list,
887 * and so on upwards. System registers are considered to be very
888 * high numbers.
889 *
890 */
891 static char *
892 parse_register_list
893 (
894 unsigned long * insn,
895 const struct v850_operand * operand
896 )
897 {
898 static int type1_regs[ 32 ] = { 30, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
899 static int type2_regs[ 32 ] = { 19, 18, 17, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 30, 31, 29, 28, 23, 22, 21, 20, 27, 26, 25, 24 };
900 static int type3_regs[ 32 ] = { 3, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 14, 15, 13, 12, 7, 6, 5, 4, 11, 10, 9, 8 };
901 int * regs;
902 expressionS exp;
903
904
905 /* Select a register array to parse. */
906 switch (operand->shift)
907 {
908 case 0xffe00001: regs = type1_regs; break;
909 case 0xfff8000f: regs = type2_regs; break;
910 case 0xfff8001f: regs = type3_regs; break;
911 default:
912 as_bad ("unknown operand shift: %x\n", operand->shift );
913 return "internal failure in parse_register_list";
914 }
915
916 skip_white_space();
917
918 /* If the expression starts with a curly brace it is a register list.
919 Otherwise it is a constant expression, whoes bits indicate which
920 registers are to be included in the list. */
921
922 if (* input_line_pointer != '{')
923 {
924 int bits;
925 int reg;
926 int i;
927
928 expression (& exp);
929
930 if (exp.X_op != O_constant)
931 return "constant expression or register list expected";
932
933 if (regs == type1_regs)
934 {
935 if (exp.X_add_number & 0xFFFFF000)
936 return "high bits set in register list expression";
937
938 for (reg = 20; reg < 32; reg ++)
939 if (exp.X_add_number & (1 << (reg - 20)))
940 {
941 for (i = 0; i < 32; i++)
942 if (regs[i] == reg)
943 * insn |= (1 << i);
944 }
945 }
946 else if (regs == type2_regs)
947 {
948 if (exp.X_add_number & 0xFFFE0000)
949 return "high bits set in register list expression";
950
951 for (reg = 1; reg < 16; reg ++)
952 if (exp.X_add_number & (1 << (reg - 1)))
953 {
954 for (i = 0; i < 32; i++)
955 if (regs[i] == reg)
956 * insn |= (1 << i);
957 }
958
959 if (exp.X_add_number & (1 << 15))
960 * insn |= (1 << 3);
961
962 if (exp.X_add_number & (1 << 16))
963 * insn |= (1 << 19);
964 }
965 else /* regs == type3_regs */
966 {
967 if (exp.X_add_number & 0xFFFE0000)
968 return "high bits set in register list expression";
969
970 for (reg = 16; reg < 32; reg ++)
971 if (exp.X_add_number & (1 << (reg - 16)))
972 {
973 for (i = 0; i < 32; i++)
974 if (regs[i] == reg)
975 * insn |= (1 << i);
976 }
977
978 if (exp.X_add_number & (1 << 16))
979 * insn |= (1 << 19);
980 }
981
982 return NULL;
983 }
984
985 input_line_pointer ++;
986
987 /* Parse the register list until a terminator (closing curly brace or new-line) is found. */
988 for (;;)
989 {
990 if (register_name (& exp))
991 {
992 int i;
993
994 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
995 for (i = 0; i < 32; i++)
996 {
997 if (regs[ i ] == exp.X_add_number)
998 {
999 * insn |= (1 << i);
1000 break;
1001 }
1002 }
1003
1004 if (i == 32)
1005 {
1006 return "illegal register included in list";
1007 }
1008 }
1009 else if (system_register_name (& exp, true, true))
1010 {
1011 if (regs == type1_regs)
1012 {
1013 return "system registers cannot be included in list";
1014 }
1015 else if (exp.X_add_number == 5)
1016 {
1017 if (regs == type2_regs)
1018 return "PSW cannot be included in list";
1019 else
1020 * insn |= 0x8;
1021 }
1022 else if (exp.X_add_number < 4)
1023 * insn |= 0x80000;
1024 else
1025 return "High value system registers cannot be included in list";
1026 }
1027 else if (* input_line_pointer == '}')
1028 {
1029 input_line_pointer ++;
1030 break;
1031 }
1032 else if (* input_line_pointer == ',')
1033 {
1034 input_line_pointer ++;
1035 continue;
1036 }
1037 else if (* input_line_pointer == '-')
1038 {
1039 /* We have encountered a range of registers: rX - rY */
1040 int j;
1041 expressionS exp2;
1042
1043 /* Skip the dash. */
1044 ++ input_line_pointer;
1045
1046 /* Get the second register in the range. */
1047 if (! register_name (& exp2))
1048 {
1049 return "second register should follow dash in register list";
1050 exp2.X_add_number = exp.X_add_number;
1051 }
1052
1053 /* Add the rest of the registers in the range. */
1054 for (j = exp.X_add_number + 1; j <= exp2.X_add_number; j++)
1055 {
1056 int i;
1057
1058 /* Locate the given register in the list, and if it is there, insert the corresponding bit into the instruction. */
1059 for (i = 0; i < 32; i++)
1060 {
1061 if (regs[ i ] == j)
1062 {
1063 * insn |= (1 << i);
1064 break;
1065 }
1066 }
1067
1068 if (i == 32)
1069 {
1070 return "illegal register included in list";
1071 }
1072 }
1073 }
1074 else
1075 {
1076 break;
1077 }
1078
1079 skip_white_space ();
1080 }
1081
1082 return NULL;
1083 }
1084 /* end-sanitize-v850e */
1085
1086 CONST char * md_shortopts = "m:";
1087
1088 struct option md_longopts[] =
1089 {
1090 {NULL, no_argument, NULL, 0}
1091 };
1092 size_t md_longopts_size = sizeof md_longopts;
1093
1094
1095 void
1096 md_show_usage (stream)
1097 FILE * stream;
1098 {
1099 fprintf (stream, "V850 options:\n");
1100 fprintf (stream, "\t-mwarn-signed-overflow Warn if signed immediate values overflow\n");
1101 fprintf (stream, "\t-mwarn-unsigned-overflow Warn if unsigned immediate values overflow\n");
1102 fprintf (stream, "\t-mv850 The code is targeted at the v850\n");
1103 /* start-sanitize-v850e */
1104 fprintf (stream, "\t-mv850e The code is targeted at the v850e\n");
1105 fprintf (stream, "\t-mv850ea The code is targeted at the v850ea\n");
1106 /* end-sanitize-v850e */
1107 }
1108
1109 int
1110 md_parse_option (c, arg)
1111 int c;
1112 char * arg;
1113 {
1114 if (c != 'm')
1115 {
1116 fprintf (stderr, "unknown command line option: -%c%s\n", c, arg);
1117 return 0;
1118 }
1119
1120 if (strcmp (arg, "warn-signed-overflow") == 0)
1121 {
1122 warn_signed_overflows = TRUE;
1123 }
1124 else if (strcmp (arg, "warn-unsigned-overflow") == 0)
1125 {
1126 warn_unsigned_overflows = TRUE;
1127 }
1128 else if (strcmp (arg, "v850") == 0)
1129 {
1130 machine = 0;
1131 processor_mask = PROCESSOR_V850;
1132 }
1133 /* start-sanitize-v850e */
1134 else if (strcmp (arg, "v850e") == 0)
1135 {
1136 machine = bfd_mach_v850e;
1137 processor_mask = PROCESSOR_V850E;
1138 }
1139 else if (strcmp (arg, "v850ea") == 0)
1140 {
1141 machine = bfd_mach_v850ea;
1142 processor_mask = PROCESSOR_V850EA;
1143 }
1144 /* end-sanitize-v850e */
1145 else
1146 {
1147 fprintf (stderr, "unknown command line option: -%c%s\n", c, arg);
1148 return 0;
1149 }
1150
1151 return 1;
1152 }
1153
1154 symbolS *
1155 md_undefined_symbol (name)
1156 char * name;
1157 {
1158 return 0;
1159 }
1160
1161 char *
1162 md_atof (type, litp, sizep)
1163 int type;
1164 char * litp;
1165 int * sizep;
1166 {
1167 int prec;
1168 LITTLENUM_TYPE words[4];
1169 char * t;
1170 int i;
1171
1172 switch (type)
1173 {
1174 case 'f':
1175 prec = 2;
1176 break;
1177
1178 case 'd':
1179 prec = 4;
1180 break;
1181
1182 default:
1183 *sizep = 0;
1184 return "bad call to md_atof";
1185 }
1186
1187 t = atof_ieee (input_line_pointer, type, words);
1188 if (t)
1189 input_line_pointer = t;
1190
1191 *sizep = prec * 2;
1192
1193 for (i = prec - 1; i >= 0; i--)
1194 {
1195 md_number_to_chars (litp, (valueT) words[i], 2);
1196 litp += 2;
1197 }
1198
1199 return NULL;
1200 }
1201
1202
1203 /* Very gross. */
1204 void
1205 md_convert_frag (abfd, sec, fragP)
1206 bfd * abfd;
1207 asection * sec;
1208 fragS * fragP;
1209 {
1210 subseg_change (sec, 0);
1211
1212 /* In range conditional or unconditional branch. */
1213 if (fragP->fr_subtype == 0 || fragP->fr_subtype == 2)
1214 {
1215 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol,
1216 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode);
1217 fragP->fr_var = 0;
1218 fragP->fr_fix += 2;
1219 }
1220 /* Out of range conditional branch. Emit a branch around a jump. */
1221 else if (fragP->fr_subtype == 1)
1222 {
1223 unsigned char *buffer =
1224 (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
1225
1226 /* Reverse the condition of the first branch. */
1227 buffer[0] ^= 0x08;
1228 /* Mask off all the displacement bits. */
1229 buffer[0] &= 0x8f;
1230 buffer[1] &= 0x07;
1231 /* Now set the displacement bits so that we branch
1232 around the unconditional branch. */
1233 buffer[0] |= 0x30;
1234
1235 /* Now create the unconditional branch + fixup to the final
1236 target. */
1237 md_number_to_chars (buffer + 2, 0x00000780, 4);
1238 fix_new (fragP, fragP->fr_fix + 2, 4, fragP->fr_symbol,
1239 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode + 1);
1240 fragP->fr_var = 0;
1241 fragP->fr_fix += 6;
1242 }
1243 /* Out of range unconditional branch. Emit a jump. */
1244 else if (fragP->fr_subtype == 3)
1245 {
1246 md_number_to_chars (fragP->fr_fix + fragP->fr_literal, 0x00000780, 4);
1247 fix_new (fragP, fragP->fr_fix, 4, fragP->fr_symbol,
1248 fragP->fr_offset, 1, BFD_RELOC_UNUSED + (int)fragP->fr_opcode + 1);
1249 fragP->fr_var = 0;
1250 fragP->fr_fix += 4;
1251 }
1252 else
1253 abort ();
1254 }
1255
1256 valueT
1257 md_section_align (seg, addr)
1258 asection * seg;
1259 valueT addr;
1260 {
1261 int align = bfd_get_section_alignment (stdoutput, seg);
1262 return ((addr + (1 << align) - 1) & (-1 << align));
1263 }
1264
1265 void
1266 md_begin ()
1267 {
1268 char * prev_name = "";
1269 register const struct v850_opcode * op;
1270 flagword applicable;
1271
1272 /* start-sanitize-v850e */
1273 if (strncmp (TARGET_CPU, "v850ea", 6) == 0)
1274 {
1275 if (machine == -1)
1276 machine = bfd_mach_v850ea;
1277
1278 if (processor_mask == -1)
1279 processor_mask = PROCESSOR_V850EA;
1280 }
1281 else if (strncmp (TARGET_CPU, "v850e", 5) == 0)
1282 {
1283 if (machine == -1)
1284 machine = bfd_mach_v850e;
1285
1286 if (processor_mask == -1)
1287 processor_mask = PROCESSOR_V850E;
1288 }
1289 else
1290 /* end-sanitize-v850e */
1291 if (strncmp (TARGET_CPU, "v850", 4) == 0)
1292 {
1293 if (machine == -1)
1294 machine = 0;
1295
1296 if (processor_mask == -1)
1297 processor_mask = PROCESSOR_V850;
1298 }
1299 else
1300 as_bad ("Unable to determine default target processor from string: %s",
1301 TARGET_CPU);
1302
1303 v850_hash = hash_new();
1304
1305 /* Insert unique names into hash table. The V850 instruction set
1306 has many identical opcode names that have different opcodes based
1307 on the operands. This hash table then provides a quick index to
1308 the first opcode with a particular name in the opcode table. */
1309
1310 op = v850_opcodes;
1311 while (op->name)
1312 {
1313 if (strcmp (prev_name, op->name))
1314 {
1315 prev_name = (char *) op->name;
1316 hash_insert (v850_hash, op->name, (char *) op);
1317 }
1318 op++;
1319 }
1320
1321 bfd_set_arch_mach (stdoutput, TARGET_ARCH, machine);
1322
1323 applicable = bfd_applicable_section_flags (stdoutput);
1324
1325 sdata_section = subseg_new (".sdata", 0);
1326 bfd_set_section_flags (stdoutput, sdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1327
1328 tdata_section = subseg_new (".tdata", 0);
1329 bfd_set_section_flags (stdoutput, tdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1330
1331 zdata_section = subseg_new (".zdata", 0);
1332 bfd_set_section_flags (stdoutput, zdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1333
1334 sbss_section = subseg_new (".sbss", 0);
1335 bfd_set_section_flags (stdoutput, sbss_section, applicable & SEC_ALLOC);
1336 seg_info (sbss_section)->bss = 1;
1337
1338 tbss_section = subseg_new (".tbss", 0);
1339 bfd_set_section_flags (stdoutput, tbss_section, applicable & SEC_ALLOC);
1340 seg_info (tbss_section)->bss = 1;
1341
1342 zbss_section = subseg_new (".zbss", 0);
1343 bfd_set_section_flags (stdoutput, zbss_section, applicable & SEC_ALLOC);
1344 seg_info (zbss_section)->bss = 1;
1345
1346 rosdata_section = subseg_new (".rosdata", 0);
1347 bfd_set_section_flags (stdoutput, rosdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
1348
1349 rozdata_section = subseg_new (".rozdata", 0);
1350 bfd_set_section_flags (stdoutput, rozdata_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY));
1351
1352 scommon_section = subseg_new (".scommon", 0);
1353 bfd_set_section_flags (stdoutput, scommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1354
1355 zcommon_section = subseg_new (".zcommon", 0);
1356 bfd_set_section_flags (stdoutput, zcommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1357
1358 tcommon_section = subseg_new (".tcommon", 0);
1359 bfd_set_section_flags (stdoutput, tcommon_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS | SEC_IS_COMMON));
1360
1361 /* start-sanitize-v850e */
1362 call_table_data_section = subseg_new (".call_table_data", 0);
1363 bfd_set_section_flags (stdoutput, call_table_data_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_DATA | SEC_HAS_CONTENTS));
1364
1365 call_table_text_section = subseg_new (".call_table_text", 0);
1366 bfd_set_section_flags (stdoutput, call_table_text_section, applicable & (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE));
1367 /* end-sanitize-v850e */
1368 }
1369
1370
1371 /* start-sanitize-v850e */
1372 static bfd_reloc_code_real_type
1373 handle_ctoff (const struct v850_operand * operand)
1374 {
1375 if (operand == NULL)
1376 return BFD_RELOC_V850_CALLT_16_16_OFFSET;
1377
1378 if ( operand->bits != 6
1379 || operand->shift != 0)
1380 {
1381 as_bad ("ctoff() relocation used on an instruction which does not support it");
1382 return BFD_RELOC_64; /* Used to indicate an error condition. */
1383 }
1384
1385 return BFD_RELOC_V850_CALLT_6_7_OFFSET;
1386 }
1387 /* end-sanitize-v850e */
1388
1389 static bfd_reloc_code_real_type
1390 handle_sdaoff (const struct v850_operand * operand)
1391 {
1392 if (operand == NULL) return BFD_RELOC_V850_SDA_16_16_OFFSET;
1393 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_SDA_15_16_OFFSET;
1394 /* start-sanitize-v850e */
1395 if (operand->bits == -1) return BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET;
1396 /* end-sanitize-v850e */
1397
1398 if ( operand->bits != 16
1399 || operand->shift != 16)
1400 {
1401 as_bad ("sdaoff() relocation used on an instruction which does not support it");
1402 return BFD_RELOC_64; /* Used to indicate an error condition. */
1403 }
1404
1405 return BFD_RELOC_V850_SDA_16_16_OFFSET;
1406 }
1407
1408 static bfd_reloc_code_real_type
1409 handle_zdaoff (const struct v850_operand * operand)
1410 {
1411 if (operand == NULL) return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1412 if (operand->bits == 15 && operand->shift == 17) return BFD_RELOC_V850_ZDA_15_16_OFFSET;
1413 /* start-sanitize-v850e */
1414 if (operand->bits == -1) return BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET;
1415 /* end-sanitize-v850e */
1416
1417 if ( operand->bits != 16
1418 || operand->shift != 16)
1419 {
1420 as_bad ("zdaoff() relocation used on an instruction which does not support it");
1421 return BFD_RELOC_64; /* Used to indicate an error condition. */
1422 }
1423
1424 return BFD_RELOC_V850_ZDA_16_16_OFFSET;
1425 }
1426
1427 static bfd_reloc_code_real_type
1428 handle_tdaoff (const struct v850_operand * operand)
1429 {
1430 if (operand == NULL) return BFD_RELOC_V850_TDA_7_7_OFFSET; /* data item, not an instruction. */
1431 if (operand->bits == 6 && operand->shift == 1) return BFD_RELOC_V850_TDA_6_8_OFFSET; /* sld.w/sst.w, operand: D8_6 */
1432 /* start-sanitize-v850e */
1433 if (operand->bits == 4 && operand->insert != NULL) return BFD_RELOC_V850_TDA_4_5_OFFSET; /* sld.hu, operand: D5-4 */
1434 if (operand->bits == 4 && operand->insert == NULL) return BFD_RELOC_V850_TDA_4_4_OFFSET; /* sld.bu, operand: D4 */
1435 /* end-sanitize-v850e */
1436 if (operand->bits == 16 && operand->shift == 16) return BFD_RELOC_V850_TDA_16_16_OFFSET; /* set1 & chums, operands: D16 */
1437
1438 if (operand->bits != 7)
1439 {
1440 as_bad ("tdaoff() relocation used on an instruction which does not support it");
1441 return BFD_RELOC_64; /* Used to indicate an error condition. */
1442 }
1443
1444 return operand->insert != NULL
1445 ? BFD_RELOC_V850_TDA_7_8_OFFSET /* sld.h/sst.h, operand: D8_7 */
1446 : BFD_RELOC_V850_TDA_7_7_OFFSET; /* sld.b/sst.b, opreand: D7 */
1447 }
1448
1449 /* Warning: The code in this function relies upon the definitions
1450 in the v850_operands[] array (defined in opcodes/v850-opc.c)
1451 matching the hard coded values contained herein. */
1452
1453 static bfd_reloc_code_real_type
1454 v850_reloc_prefix (const struct v850_operand * operand)
1455 {
1456 boolean paren_skipped = false;
1457
1458
1459 /* Skip leading opening parenthesis. */
1460 if (* input_line_pointer == '(')
1461 {
1462 ++ input_line_pointer;
1463 paren_skipped = true;
1464 }
1465
1466 #define CHECK_(name, reloc) \
1467 if (strncmp (input_line_pointer, name##"(", strlen (name) + 1) == 0) \
1468 { \
1469 input_line_pointer += strlen (name); \
1470 return reloc; \
1471 }
1472
1473 CHECK_ ("hi0", BFD_RELOC_HI16);
1474 CHECK_ ("hi", BFD_RELOC_HI16_S);
1475 CHECK_ ("lo", BFD_RELOC_LO16);
1476 CHECK_ ("sdaoff", handle_sdaoff (operand));
1477 CHECK_ ("zdaoff", handle_zdaoff (operand));
1478 CHECK_ ("tdaoff", handle_tdaoff (operand));
1479
1480 /* start-sanitize-v850e */
1481 CHECK_ ("hilo", BFD_RELOC_32);
1482 CHECK_ ("ctoff", handle_ctoff (operand));
1483 /* end-sanitize-v850e */
1484
1485 /* Restore skipped parenthesis. */
1486 if (paren_skipped)
1487 -- input_line_pointer;
1488
1489 return BFD_RELOC_UNUSED;
1490 }
1491
1492 void
1493 md_assemble (str)
1494 char * str;
1495 {
1496 char * s;
1497 char * start_of_operands;
1498 struct v850_opcode * opcode;
1499 struct v850_opcode * next_opcode;
1500 const unsigned char * opindex_ptr;
1501 int next_opindex;
1502 int relaxable;
1503 unsigned long insn;
1504 unsigned long insn_size;
1505 char * f;
1506 int i;
1507 int match;
1508 boolean extra_data_after_insn = false;
1509 unsigned extra_data_len;
1510 unsigned long extra_data;
1511 char * saved_input_line_pointer;
1512
1513 /* Get the opcode. */
1514 for (s = str; *s != '\0' && ! isspace (*s); s++)
1515 continue;
1516
1517 if (*s != '\0')
1518 *s++ = '\0';
1519
1520 /* find the first opcode with the proper name */
1521 opcode = (struct v850_opcode *)hash_find (v850_hash, str);
1522 if (opcode == NULL)
1523 {
1524 as_bad ("Unrecognized opcode: `%s'", str);
1525 ignore_rest_of_line ();
1526 return;
1527 }
1528
1529 str = s;
1530 while (isspace (* str))
1531 ++ str;
1532
1533 start_of_operands = str;
1534
1535 saved_input_line_pointer = input_line_pointer;
1536
1537 for (;;)
1538 {
1539 const char * errmsg = NULL;
1540
1541 match = 0;
1542
1543 if ((opcode->processors & processor_mask) == 0)
1544 {
1545 errmsg = "Target processor does not support this instruction.";
1546 goto error;
1547 }
1548
1549 relaxable = 0;
1550 fc = 0;
1551 next_opindex = 0;
1552 insn = opcode->opcode;
1553 extra_data_after_insn = false;
1554
1555 input_line_pointer = str = start_of_operands;
1556
1557 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
1558 {
1559 const struct v850_operand * operand;
1560 char * hold;
1561 expressionS ex;
1562 bfd_reloc_code_real_type reloc;
1563
1564 if (next_opindex == 0)
1565 {
1566 operand = & v850_operands[ * opindex_ptr ];
1567 }
1568 else
1569 {
1570 operand = & v850_operands[ next_opindex ];
1571 next_opindex = 0;
1572 }
1573
1574 errmsg = NULL;
1575
1576 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1577 ++ str;
1578
1579 if (operand->flags & V850_OPERAND_RELAX)
1580 relaxable = 1;
1581
1582 /* Gather the operand. */
1583 hold = input_line_pointer;
1584 input_line_pointer = str;
1585
1586 /* lo(), hi(), hi0(), etc... */
1587 if ((reloc = v850_reloc_prefix (operand)) != BFD_RELOC_UNUSED)
1588 {
1589 if (reloc == BFD_RELOC_64) /* This is a fake reloc, used to indicate an error condition. */
1590 {
1591 match = 1;
1592 goto error;
1593 }
1594
1595 expression (& ex);
1596
1597 if (ex.X_op == O_constant)
1598 {
1599 switch (reloc)
1600 {
1601 case BFD_RELOC_V850_ZDA_16_16_OFFSET:
1602 /* To cope with "not1 7, zdaoff(0xfffff006)[r0]" and the like. */
1603 /* Fall through. */
1604
1605 case BFD_RELOC_LO16:
1606 {
1607 /* Truncate, then sign extend the value. */
1608 ex.X_add_number = SEXT16 (ex.X_add_number);
1609 break;
1610 }
1611
1612 case BFD_RELOC_HI16:
1613 {
1614 /* Truncate, then sign extend the value. */
1615 ex.X_add_number = SEXT16 (ex.X_add_number >> 16);
1616 break;
1617 }
1618
1619 case BFD_RELOC_HI16_S:
1620 {
1621 /* Truncate, then sign extend the value. */
1622 int temp = (ex.X_add_number >> 16) & 0xffff;
1623
1624 temp += (ex.X_add_number >> 15) & 1;
1625
1626 ex.X_add_number = SEXT16 (temp);
1627 break;
1628 }
1629
1630 /* start-sanitize-v850e */
1631 case BFD_RELOC_32:
1632 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1633 {
1634 errmsg = "immediate operand is too large";
1635 goto error;
1636 }
1637
1638 extra_data_after_insn = true;
1639 extra_data_len = 4;
1640 extra_data = ex.X_add_number;
1641 ex.X_add_number = 0;
1642 break;
1643 /* end-sanitize-v850e */
1644
1645 default:
1646 fprintf (stderr, "reloc: %d\n", reloc);
1647 as_bad ("AAARG -> unhandled constant reloc");
1648 break;
1649 }
1650
1651 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1652 (char *) NULL, 0);
1653 }
1654 else
1655 {
1656 /* start-sanitize-v850e */
1657 if (reloc == BFD_RELOC_32)
1658 {
1659 if ((operand->flags & V850E_IMMEDIATE32) == 0)
1660 {
1661 errmsg = "immediate operand is too large";
1662 goto error;
1663 }
1664
1665 extra_data_after_insn = true;
1666 extra_data_len = 4;
1667 extra_data = ex.X_add_number;
1668 }
1669 /* end-sanitize-v850e */
1670
1671 if (fc > MAX_INSN_FIXUPS)
1672 as_fatal ("too many fixups");
1673
1674 fixups[ fc ].exp = ex;
1675 fixups[ fc ].opindex = * opindex_ptr;
1676 fixups[ fc ].reloc = reloc;
1677 fc++;
1678 }
1679 }
1680 else
1681 {
1682 errmsg = NULL;
1683
1684 if ((operand->flags & V850_OPERAND_REG) != 0)
1685 {
1686 if (!register_name (& ex))
1687 {
1688 errmsg = "invalid register name";
1689 }
1690
1691 if ((operand->flags & V850_NOT_R0)
1692 && ex.X_add_number == 0)
1693 {
1694 errmsg = "register r0 cannot be used here";
1695
1696 /* Force an error message to be generated by
1697 skipping over any following potential matches
1698 for this opcode. */
1699 opcode += 3;
1700
1701 if (* input_line_pointer == ']')
1702 ++ input_line_pointer;
1703 }
1704 }
1705 else if ((operand->flags & V850_OPERAND_SRG) != 0)
1706 {
1707 if (!system_register_name (& ex, true
1708 /* start-sanitize-v850e */
1709 , false
1710 /* end-sanitize-v850e */
1711 ))
1712 {
1713 errmsg = "invalid system register name";
1714 }
1715 }
1716 else if ((operand->flags & V850_OPERAND_EP) != 0)
1717 {
1718 char * start = input_line_pointer;
1719 char c = get_symbol_end ();
1720
1721 if (strcmp (start, "ep") != 0 && strcmp (start, "r30") != 0)
1722 {
1723 /* Put things back the way we found them. */
1724 *input_line_pointer = c;
1725 input_line_pointer = start;
1726 errmsg = "expected EP register";
1727 goto error;
1728 }
1729
1730 *input_line_pointer = c;
1731 str = input_line_pointer;
1732 input_line_pointer = hold;
1733
1734 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']')
1735 ++str;
1736 continue;
1737 }
1738 else if ((operand->flags & V850_OPERAND_CC) != 0)
1739 {
1740 if (!cc_name (& ex))
1741 {
1742 errmsg = "invalid condition code name";
1743 }
1744 }
1745 /* start-sanitize-v850e */
1746 else if (operand->flags & V850E_PUSH_POP)
1747 {
1748 errmsg = parse_register_list (& insn, operand);
1749
1750 /* The parse_register_list() function has already done everything, so fake a dummy expression. */
1751 ex.X_op = O_constant;
1752 ex.X_add_number = 0;
1753 }
1754 else if (operand->flags & V850E_IMMEDIATE16)
1755 {
1756 expression (& ex);
1757
1758 if (ex.X_op != O_constant)
1759 errmsg = "constant expression expected";
1760 else if (ex.X_add_number & 0xffff0000)
1761 {
1762 if (ex.X_add_number & 0xffff)
1763 errmsg = "constant too big to fit into instruction";
1764 else if ((insn & 0x001fffc0) == 0x00130780)
1765 ex.X_add_number >>= 16;
1766 else
1767 errmsg = "constant too big to fit into instruction";
1768 }
1769
1770 extra_data_after_insn = true;
1771 extra_data_len = 2;
1772 extra_data = ex.X_add_number;
1773 ex.X_add_number = 0;
1774 }
1775 else if (operand->flags & V850E_IMMEDIATE32)
1776 {
1777 expression (& ex);
1778
1779 if (ex.X_op != O_constant)
1780 errmsg = "constant expression expected";
1781
1782 extra_data_after_insn = true;
1783 extra_data_len = 4;
1784 extra_data = ex.X_add_number;
1785 ex.X_add_number = 0;
1786 }
1787 /* end-sanitize-v850e */
1788 else if (register_name (& ex)
1789 && (operand->flags & V850_OPERAND_REG) == 0)
1790 {
1791 /* It is possible that an alias has been defined that
1792 matches a register name. For example the code may
1793 include a ".set ZERO, 0" directive, which matches
1794 the register name "zero". Attempt to reparse the
1795 field as an expression, and only complain if we
1796 cannot generate a constant. */
1797
1798 input_line_pointer = str;
1799
1800 expression (& ex);
1801
1802 if (ex.X_op != O_constant)
1803 errmsg = "syntax error: register not expected";
1804 }
1805 else if (system_register_name (& ex, false
1806 /* start-sanitize-v850e */
1807 , false
1808 /* end-sanitize-v850e */
1809 )
1810 && (operand->flags & V850_OPERAND_SRG) == 0)
1811 {
1812 errmsg = "syntax error: system register not expected";
1813 }
1814 else if (cc_name (&ex)
1815 && (operand->flags & V850_OPERAND_CC) == 0)
1816 {
1817 errmsg = "syntax error: condition code not expected";
1818 }
1819 else
1820 {
1821 expression (& ex);
1822 /* start-sanitize-v850e */
1823 /* Special case:
1824 If we are assembling a MOV instruction (or a CALLT.... :-)
1825 and the immediate value does not fit into the bits available
1826 then create a fake error so that the next MOV instruction
1827 will be selected. This one has a 32 bit immediate field. */
1828
1829 if (((insn & 0x07e0) == 0x0200)
1830 && ex.X_op == O_constant
1831 && (ex.X_add_number < (- (1 << (operand->bits - 1))) || ex.X_add_number > ((1 << operand->bits) - 1)))
1832 errmsg = "immediate constant is too large";
1833 /* end-sanitize-v850e */
1834 }
1835
1836 if (errmsg)
1837 goto error;
1838
1839 /* fprintf (stderr, " insn: %x, operand %d, op: %d, add_number: %d\n", insn, opindex_ptr - opcode->operands, ex.X_op, ex.X_add_number); */
1840
1841 switch (ex.X_op)
1842 {
1843 case O_illegal:
1844 errmsg = "illegal operand";
1845 goto error;
1846 case O_absent:
1847 errmsg = "missing operand";
1848 goto error;
1849 case O_register:
1850 if ((operand->flags & (V850_OPERAND_REG | V850_OPERAND_SRG)) == 0)
1851 {
1852 errmsg = "invalid operand";
1853 goto error;
1854 }
1855 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1856 (char *) NULL, 0);
1857 break;
1858
1859 case O_constant:
1860 insn = v850_insert_operand (insn, operand, ex.X_add_number,
1861 (char *) NULL, 0);
1862 break;
1863
1864 default:
1865 /* We need to generate a fixup for this expression. */
1866 if (fc >= MAX_INSN_FIXUPS)
1867 as_fatal ("too many fixups");
1868
1869 fixups[ fc ].exp = ex;
1870 fixups[ fc ].opindex = * opindex_ptr;
1871 fixups[ fc ].reloc = BFD_RELOC_UNUSED;
1872 ++fc;
1873 break;
1874 }
1875 }
1876
1877 str = input_line_pointer;
1878 input_line_pointer = hold;
1879
1880 while (*str == ' ' || *str == ',' || *str == '[' || *str == ']'
1881 || *str == ')')
1882 ++str;
1883 }
1884 match = 1;
1885
1886 error:
1887 if (match == 0)
1888 {
1889 next_opcode = opcode + 1;
1890 if (next_opcode->name != NULL && strcmp (next_opcode->name, opcode->name) == 0)
1891 {
1892 opcode = next_opcode;
1893 continue;
1894 }
1895
1896 as_bad (errmsg);
1897 ignore_rest_of_line ();
1898 input_line_pointer = saved_input_line_pointer;
1899 return;
1900 }
1901 break;
1902 }
1903
1904 while (isspace (*str))
1905 ++str;
1906
1907 if (*str != '\0')
1908 as_bad ("junk at end of line: `%s'", str);
1909
1910 input_line_pointer = str;
1911
1912 /* Write out the instruction. */
1913
1914 if (relaxable && fc > 0)
1915 {
1916 insn_size = 2;
1917 fc = 0;
1918
1919 if (!strcmp (opcode->name, "br"))
1920 {
1921 f = frag_var (rs_machine_dependent, 4, 2, 2,
1922 fixups[0].exp.X_add_symbol,
1923 fixups[0].exp.X_add_number,
1924 (char *)fixups[0].opindex);
1925 md_number_to_chars (f, insn, insn_size);
1926 md_number_to_chars (f + 2, 0, 2);
1927 }
1928 else
1929 {
1930 f = frag_var (rs_machine_dependent, 6, 4, 0,
1931 fixups[0].exp.X_add_symbol,
1932 fixups[0].exp.X_add_number,
1933 (char *)fixups[0].opindex);
1934 md_number_to_chars (f, insn, insn_size);
1935 md_number_to_chars (f + 2, 0, 4);
1936 }
1937 }
1938 else
1939 {
1940 /* Four byte insns have an opcode with the two high bits on. */
1941 if ((insn & 0x0600) == 0x0600)
1942 insn_size = 4;
1943 else
1944 insn_size = 2;
1945
1946 /* start-sanitize-v850e */
1947 /* Special case: 32 bit MOV */
1948 if ((insn & 0xffe0) == 0x0620)
1949 insn_size = 2;
1950 /* end-sanitize-v850e */
1951
1952 f = frag_more (insn_size);
1953
1954 md_number_to_chars (f, insn, insn_size);
1955
1956 if (extra_data_after_insn)
1957 {
1958 f = frag_more (extra_data_len);
1959
1960 md_number_to_chars (f, extra_data, extra_data_len);
1961
1962 extra_data_after_insn = false;
1963 }
1964 }
1965
1966 /* Create any fixups. At this point we do not use a
1967 bfd_reloc_code_real_type, but instead just use the
1968 BFD_RELOC_UNUSED plus the operand index. This lets us easily
1969 handle fixups for any operand type, although that is admittedly
1970 not a very exciting feature. We pick a BFD reloc type in
1971 md_apply_fix. */
1972 for (i = 0; i < fc; i++)
1973 {
1974 const struct v850_operand * operand;
1975 bfd_reloc_code_real_type reloc;
1976
1977 operand = & v850_operands[ fixups[i].opindex ];
1978
1979 reloc = fixups[i].reloc;
1980
1981 if (reloc != BFD_RELOC_UNUSED)
1982 {
1983 reloc_howto_type * reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1984 int size;
1985 int address;
1986 fixS * fixP;
1987
1988 if (!reloc_howto)
1989 abort();
1990
1991 size = bfd_get_reloc_size (reloc_howto);
1992
1993 if (size != 2 && size != 4) /* XXX this will abort on an R_V850_8 reloc - is this reloc actually used ? */
1994 abort();
1995
1996 address = (f - frag_now->fr_literal) + insn_size - size;
1997
1998 if (reloc == BFD_RELOC_32)
1999 {
2000 address += 2;
2001 }
2002
2003 fixP = fix_new_exp (frag_now, address, size,
2004 & fixups[i].exp,
2005 reloc_howto->pc_relative,
2006 reloc);
2007
2008 switch (reloc)
2009 {
2010 case BFD_RELOC_LO16:
2011 case BFD_RELOC_HI16:
2012 case BFD_RELOC_HI16_S:
2013 fixP->fx_no_overflow = 1;
2014 break;
2015 }
2016 }
2017 else
2018 {
2019 fix_new_exp (
2020 frag_now,
2021 f - frag_now->fr_literal, 4,
2022 & fixups[i].exp,
2023 1 /* FIXME: V850_OPERAND_RELATIVE ??? */,
2024 (bfd_reloc_code_real_type) (fixups[i].opindex + (int) BFD_RELOC_UNUSED)
2025 );
2026 }
2027 }
2028
2029 input_line_pointer = saved_input_line_pointer;
2030 }
2031
2032
2033 /* If while processing a fixup, a reloc really needs to be created */
2034 /* then it is done here. */
2035
2036 arelent *
2037 tc_gen_reloc (seg, fixp)
2038 asection * seg;
2039 fixS * fixp;
2040 {
2041 arelent * reloc;
2042
2043 reloc = (arelent *) xmalloc (sizeof (arelent));
2044 reloc->sym_ptr_ptr = & fixp->fx_addsy->bsym;
2045 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
2046 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
2047
2048 if (reloc->howto == (reloc_howto_type *) NULL)
2049 {
2050 as_bad_where (fixp->fx_file, fixp->fx_line,
2051 "reloc %d not supported by object file format", (int)fixp->fx_r_type);
2052
2053 xfree (reloc);
2054
2055 return NULL;
2056 }
2057
2058 reloc->addend = fixp->fx_addnumber;
2059
2060 return reloc;
2061 }
2062
2063 /* Assume everything will fit in two bytes, then expand as necessary. */
2064 int
2065 md_estimate_size_before_relax (fragp, seg)
2066 fragS * fragp;
2067 asection * seg;
2068 {
2069 if (fragp->fr_subtype == 0)
2070 fragp->fr_var = 4;
2071 else if (fragp->fr_subtype == 2)
2072 fragp->fr_var = 2;
2073 else
2074 abort ();
2075 return 2;
2076 }
2077
2078 long
2079 md_pcrel_from (fixp)
2080 fixS * fixp;
2081 {
2082 /* If the symbol is undefined, or in a section other than our own,
2083 then let the linker figure it out. */
2084 if (fixp->fx_addsy != (symbolS *) NULL && ! S_IS_DEFINED (fixp->fx_addsy))
2085 {
2086 /* The symbol is undefined. Let the linker figure it out. */
2087 return 0;
2088 }
2089 return fixp->fx_frag->fr_address + fixp->fx_where;
2090 }
2091
2092 int
2093 md_apply_fix3 (fixp, valuep, seg)
2094 fixS * fixp;
2095 valueT * valuep;
2096 segT seg;
2097 {
2098 valueT value;
2099 char * where;
2100
2101 if (fixp->fx_addsy == (symbolS *) NULL)
2102 {
2103 value = * valuep;
2104 fixp->fx_done = 1;
2105 }
2106 else if (fixp->fx_pcrel)
2107 value = * valuep;
2108 else
2109 {
2110 value = fixp->fx_offset;
2111 if (fixp->fx_subsy != (symbolS *) NULL)
2112 {
2113 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
2114 value -= S_GET_VALUE (fixp->fx_subsy);
2115 else
2116 {
2117 /* We don't actually support subtracting a symbol. */
2118 as_bad_where (fixp->fx_file, fixp->fx_line,
2119 "expression too complex");
2120 }
2121 }
2122 }
2123
2124 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
2125 {
2126 int opindex;
2127 const struct v850_operand * operand;
2128 unsigned long insn;
2129
2130 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
2131 operand = & v850_operands[ opindex ];
2132
2133 /* Fetch the instruction, insert the fully resolved operand
2134 value, and stuff the instruction back again.
2135
2136 Note the instruction has been stored in little endian
2137 format! */
2138 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2139
2140 insn = bfd_getl32 ((unsigned char *) where);
2141 insn = v850_insert_operand (insn, operand, (offsetT) value,
2142 fixp->fx_file, fixp->fx_line);
2143 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
2144
2145 if (fixp->fx_done)
2146 {
2147 /* Nothing else to do here. */
2148 return 1;
2149 }
2150
2151 /* Determine a BFD reloc value based on the operand information.
2152 We are only prepared to turn a few of the operands into relocs. */
2153
2154 if (operand->bits == 22)
2155 fixp->fx_r_type = BFD_RELOC_V850_22_PCREL;
2156 else if (operand->bits == 9)
2157 fixp->fx_r_type = BFD_RELOC_V850_9_PCREL;
2158 else
2159 {
2160 /* fprintf (stderr, "bits: %d, insn: %x\n", operand->bits, insn); */
2161
2162 as_bad_where(fixp->fx_file, fixp->fx_line,
2163 "unresolved expression that must be resolved");
2164 fixp->fx_done = 1;
2165 return 1;
2166 }
2167 }
2168 else if (fixp->fx_done)
2169 {
2170 /* We still have to insert the value into memory! */
2171 where = fixp->fx_frag->fr_literal + fixp->fx_where;
2172
2173 if (fixp->fx_size == 1)
2174 *where = value & 0xff;
2175 else if (fixp->fx_size == 2)
2176 bfd_putl16 (value & 0xffff, (unsigned char *) where);
2177 else if (fixp->fx_size == 4)
2178 bfd_putl32 (value, (unsigned char *) where);
2179 }
2180
2181 fixp->fx_addnumber = value;
2182 return 1;
2183 }
2184
2185 \f
2186 /* Insert an operand value into an instruction. */
2187
2188 static unsigned long
2189 v850_insert_operand (insn, operand, val, file, line)
2190 unsigned long insn;
2191 const struct v850_operand * operand;
2192 offsetT val;
2193 char *file;
2194 unsigned int line;
2195 {
2196 if (operand->insert)
2197 {
2198 const char * message = NULL;
2199
2200 insn = (*operand->insert) (insn, val, & message);
2201 if (message != NULL)
2202 {
2203 if ((operand->flags & V850_OPERAND_SIGNED)
2204 && ! warn_signed_overflows
2205 && strstr (message, "out of range") != NULL)
2206 {
2207 /* skip warning... */
2208 }
2209 else if ((operand->flags & V850_OPERAND_SIGNED) == 0
2210 && ! warn_unsigned_overflows
2211 && strstr (message, "out of range") != NULL)
2212 {
2213 /* skip warning... */
2214 }
2215 else
2216 {
2217 if (file == (char *) NULL)
2218 as_warn (message);
2219 else
2220 as_warn_where (file, line, message);
2221 }
2222 }
2223 }
2224 else
2225 {
2226 if (operand->bits != 32)
2227 {
2228 long min, max;
2229 offsetT test;
2230
2231 if ((operand->flags & V850_OPERAND_SIGNED) != 0)
2232 {
2233 if (! warn_signed_overflows)
2234 max = (1 << operand->bits) - 1;
2235 else
2236 max = (1 << (operand->bits - 1)) - 1;
2237
2238 min = - (1 << (operand->bits - 1));
2239 }
2240 else
2241 {
2242 max = (1 << operand->bits) - 1;
2243
2244 if (! warn_unsigned_overflows)
2245 min = - (1 << (operand->bits - 1));
2246 else
2247 min = 0;
2248 }
2249
2250 test = val;
2251
2252 if (test < (offsetT) min || test > (offsetT) max)
2253 {
2254 const char * err = "operand out of range (%s not between %ld and %ld)";
2255 char buf[100];
2256
2257 /* Restore min and mix to expected values for decimal ranges. */
2258 if ((operand->flags & V850_OPERAND_SIGNED) && ! warn_signed_overflows)
2259 max = (1 << (operand->bits - 1)) - 1;
2260
2261 if (! (operand->flags & V850_OPERAND_SIGNED)
2262 && ! warn_unsigned_overflows)
2263 min = 0;
2264
2265 sprint_value (buf, test);
2266 if (file == (char *) NULL)
2267 as_warn (err, buf, min, max);
2268 else
2269 as_warn_where (file, line, err, buf, min, max);
2270 }
2271 }
2272
2273 insn |= (((long) val & ((1 << operand->bits) - 1)) << operand->shift);
2274 }
2275
2276 return insn;
2277 }
2278
2279 /* Parse a cons expression. We have to handle hi(), lo(), etc
2280 on the v850. */
2281 void
2282 parse_cons_expression_v850 (exp)
2283 expressionS *exp;
2284 {
2285 /* See if there's a reloc prefix like hi() we have to handle. */
2286 hold_cons_reloc = v850_reloc_prefix (NULL);
2287
2288 /* Do normal expression parsing. */
2289 expression (exp);
2290 }
2291
2292 /* Create a fixup for a cons expression. If parse_cons_expression_v850
2293 found a reloc prefix, then we use that reloc, else we choose an
2294 appropriate one based on the size of the expression. */
2295 void
2296 cons_fix_new_v850 (frag, where, size, exp)
2297 fragS *frag;
2298 int where;
2299 int size;
2300 expressionS *exp;
2301 {
2302 if (hold_cons_reloc == BFD_RELOC_UNUSED)
2303 {
2304 if (size == 4)
2305 hold_cons_reloc = BFD_RELOC_32;
2306 if (size == 2)
2307 hold_cons_reloc = BFD_RELOC_16;
2308 if (size == 1)
2309 hold_cons_reloc = BFD_RELOC_8;
2310 }
2311
2312 if (exp != NULL)
2313 fix_new_exp (frag, where, size, exp, 0, hold_cons_reloc);
2314 else
2315 fix_new (frag, where, size, NULL, 0, 0, hold_cons_reloc);
2316 }
GDB Binutils - Deliverables
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