1 /* tc-sh.c -- Assemble code for the Renesas / SuperH SH
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
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 3, or (at your option)
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.
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
19 the Free Software Foundation, 51 Franklin Street - Fifth Floor,
20 Boston, MA 02110-1301, USA. */
22 /* Written By Steve Chamberlain <sac@cygnus.com> */
27 #include "opcodes/sh-opc.h"
28 #include "safe-ctype.h"
29 #include "struc-symbol.h"
35 #include "dwarf2dbg.h"
36 #include "dw2gencfi.h"
42 expressionS immediate;
46 const char comment_chars[] = "!";
47 const char line_separator_chars[] = ";";
48 const char line_comment_chars[] = "!#";
50 static void s_uses (int);
51 static void s_uacons (int);
54 static void sh_elf_cons (int);
56 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE_" */
60 big (int ignore ATTRIBUTE_UNUSED)
62 if (! target_big_endian)
63 as_bad (_("directive .big encountered when option -big required"));
65 /* Stop further messages. */
66 target_big_endian = 1;
70 little (int ignore ATTRIBUTE_UNUSED)
72 if (target_big_endian)
73 as_bad (_("directive .little encountered when option -little required"));
75 /* Stop further messages. */
76 target_big_endian = 0;
79 /* This table describes all the machine specific pseudo-ops the assembler
80 has to support. The fields are:
81 pseudo-op name without dot
82 function to call to execute this pseudo-op
83 Integer arg to pass to the function. */
85 const pseudo_typeS md_pseudo_table[] =
88 {"long", sh_elf_cons, 4},
89 {"int", sh_elf_cons, 4},
90 {"word", sh_elf_cons, 2},
91 {"short", sh_elf_cons, 2},
97 {"form", listing_psize, 0},
98 {"little", little, 0},
99 {"heading", listing_title, 0},
100 {"import", s_ignore, 0},
101 {"page", listing_eject, 0},
102 {"program", s_ignore, 0},
104 {"uaword", s_uacons, 2},
105 {"ualong", s_uacons, 4},
106 {"uaquad", s_uacons, 8},
107 {"2byte", s_uacons, 2},
108 {"4byte", s_uacons, 4},
109 {"8byte", s_uacons, 8},
111 {"mode", s_sh64_mode, 0 },
113 /* Have the old name too. */
114 {"isa", s_sh64_mode, 0 },
116 /* Assert that the right ABI is used. */
117 {"abi", s_sh64_abi, 0 },
119 { "vtable_inherit", sh64_vtable_inherit, 0 },
120 { "vtable_entry", sh64_vtable_entry, 0 },
121 #endif /* HAVE_SH64 */
125 int sh_relax; /* set if -relax seen */
127 /* Whether -small was seen. */
131 /* Flag to generate relocations against symbol values for local symbols. */
133 static int dont_adjust_reloc_32;
135 /* Flag to indicate that '$' is allowed as a register prefix. */
137 static int allow_dollar_register_prefix;
139 /* Preset architecture set, if given; zero otherwise. */
141 static unsigned int preset_target_arch;
143 /* The bit mask of architectures that could
144 accommodate the insns seen so far. */
145 static unsigned int valid_arch;
147 const char EXP_CHARS[] = "eE";
149 /* Chars that mean this number is a floating point constant. */
152 const char FLT_CHARS[] = "rRsSfFdDxXpP";
154 #define C(a,b) ENCODE_RELAX(a,b)
156 #define ENCODE_RELAX(what,length) (((what) << 4) + (length))
157 #define GET_WHAT(x) ((x>>4))
159 /* These are the three types of relaxable instruction. */
160 /* These are the types of relaxable instructions; except for END which is
163 #define COND_JUMP_DELAY 2
164 #define UNCOND_JUMP 3
168 /* A 16-bit (times four) pc-relative operand, at most expanded to 32 bits. */
169 #define SH64PCREL16_32 4
170 /* A 16-bit (times four) pc-relative operand, at most expanded to 64 bits. */
171 #define SH64PCREL16_64 5
173 /* Variants of the above for adjusting the insn to PTA or PTB according to
175 #define SH64PCREL16PT_32 6
176 #define SH64PCREL16PT_64 7
178 /* A MOVI expansion, expanding to at most 32 or 64 bits. */
179 #define MOVI_IMM_32 8
180 #define MOVI_IMM_32_PCREL 9
181 #define MOVI_IMM_64 10
182 #define MOVI_IMM_64_PCREL 11
185 #else /* HAVE_SH64 */
189 #endif /* HAVE_SH64 */
195 #define UNDEF_WORD_DISP 4
201 #define UNDEF_SH64PCREL 0
202 #define SH64PCREL16 1
203 #define SH64PCREL32 2
204 #define SH64PCREL48 3
205 #define SH64PCREL64 4
206 #define SH64PCRELPLT 5
214 #define MOVI_GOTOFF 6
216 #endif /* HAVE_SH64 */
218 /* Branch displacements are from the address of the branch plus
219 four, thus all minimum and maximum values have 4 added to them. */
222 #define COND8_LENGTH 2
224 /* There is one extra instruction before the branch, so we must add
225 two more bytes to account for it. */
226 #define COND12_F 4100
227 #define COND12_M -4090
228 #define COND12_LENGTH 6
230 #define COND12_DELAY_LENGTH 4
232 /* ??? The minimum and maximum values are wrong, but this does not matter
233 since this relocation type is not supported yet. */
234 #define COND32_F (1<<30)
235 #define COND32_M -(1<<30)
236 #define COND32_LENGTH 14
238 #define UNCOND12_F 4098
239 #define UNCOND12_M -4092
240 #define UNCOND12_LENGTH 2
242 /* ??? The minimum and maximum values are wrong, but this does not matter
243 since this relocation type is not supported yet. */
244 #define UNCOND32_F (1<<30)
245 #define UNCOND32_M -(1<<30)
246 #define UNCOND32_LENGTH 14
249 /* The trivial expansion of a SH64PCREL16 relaxation is just a "PT label,
250 TRd" as is the current insn, so no extra length. Note that the "reach"
251 is calculated from the address *after* that insn, but the offset in the
252 insn is calculated from the beginning of the insn. We also need to
253 take into account the implicit 1 coded as the "A" in PTA when counting
254 forward. If PTB reaches an odd address, we trap that as an error
255 elsewhere, so we don't have to have different relaxation entries. We
256 don't add a one to the negative range, since PTB would then have the
257 farthest backward-reaching value skipped, not generated at relaxation. */
258 #define SH64PCREL16_F (32767 * 4 - 4 + 1)
259 #define SH64PCREL16_M (-32768 * 4 - 4)
260 #define SH64PCREL16_LENGTH 0
262 /* The next step is to change that PT insn into
263 MOVI ((label - datalabel Ln) >> 16) & 65535, R25
264 SHORI (label - datalabel Ln) & 65535, R25
267 which means two extra insns, 8 extra bytes. This is the limit for the
270 The expressions look a bit bad since we have to adjust this to avoid overflow on a
272 #define SH64PCREL32_F ((((long) 1 << 30) - 1) * 2 + 1 - 4)
273 #define SH64PCREL32_LENGTH (2 * 4)
275 /* Similarly, we just change the MOVI and add a SHORI for the 48-bit
277 #if BFD_HOST_64BIT_LONG
278 /* The "reach" type is long, so we can only do this for a 64-bit-long
280 #define SH64PCREL32_M (((long) -1 << 30) * 2 - 4)
281 #define SH64PCREL48_F ((((long) 1 << 47) - 1) - 4)
282 #define SH64PCREL48_M (((long) -1 << 47) - 4)
283 #define SH64PCREL48_LENGTH (3 * 4)
285 /* If the host does not have 64-bit longs, just make this state identical
286 in reach to the 32-bit state. Note that we have a slightly incorrect
287 reach, but the correct one above will overflow a 32-bit number. */
288 #define SH64PCREL32_M (((long) -1 << 30) * 2)
289 #define SH64PCREL48_F SH64PCREL32_F
290 #define SH64PCREL48_M SH64PCREL32_M
291 #define SH64PCREL48_LENGTH (3 * 4)
292 #endif /* BFD_HOST_64BIT_LONG */
294 /* And similarly for the 64-bit expansion; a MOVI + SHORI + SHORI + SHORI
296 #define SH64PCREL64_LENGTH (4 * 4)
298 /* For MOVI, we make the MOVI + SHORI... expansion you can see in the
299 SH64PCREL expansions. The PCREL one is similar, but the other has no
300 pc-relative reach; it must be fully expanded in
301 shmedia_md_estimate_size_before_relax. */
302 #define MOVI_16_LENGTH 0
303 #define MOVI_16_F (32767 - 4)
304 #define MOVI_16_M (-32768 - 4)
305 #define MOVI_32_LENGTH 4
306 #define MOVI_32_F ((((long) 1 << 30) - 1) * 2 + 1 - 4)
307 #define MOVI_48_LENGTH 8
309 #if BFD_HOST_64BIT_LONG
310 /* The "reach" type is long, so we can only do this for a 64-bit-long
312 #define MOVI_32_M (((long) -1 << 30) * 2 - 4)
313 #define MOVI_48_F ((((long) 1 << 47) - 1) - 4)
314 #define MOVI_48_M (((long) -1 << 47) - 4)
316 /* If the host does not have 64-bit longs, just make this state identical
317 in reach to the 32-bit state. Note that we have a slightly incorrect
318 reach, but the correct one above will overflow a 32-bit number. */
319 #define MOVI_32_M (((long) -1 << 30) * 2)
320 #define MOVI_48_F MOVI_32_F
321 #define MOVI_48_M MOVI_32_M
322 #endif /* BFD_HOST_64BIT_LONG */
324 #define MOVI_64_LENGTH 12
325 #endif /* HAVE_SH64 */
327 #define EMPTY { 0, 0, 0, 0 }
329 const relax_typeS md_relax_table[C (END, 0)] = {
330 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
331 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
334 /* C (COND_JUMP, COND8) */
335 { COND8_F, COND8_M, COND8_LENGTH, C (COND_JUMP, COND12) },
336 /* C (COND_JUMP, COND12) */
337 { COND12_F, COND12_M, COND12_LENGTH, C (COND_JUMP, COND32), },
338 /* C (COND_JUMP, COND32) */
339 { COND32_F, COND32_M, COND32_LENGTH, 0, },
340 /* C (COND_JUMP, UNDEF_WORD_DISP) */
341 { 0, 0, COND32_LENGTH, 0, },
343 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
346 /* C (COND_JUMP_DELAY, COND8) */
347 { COND8_F, COND8_M, COND8_LENGTH, C (COND_JUMP_DELAY, COND12) },
348 /* C (COND_JUMP_DELAY, COND12) */
349 { COND12_F, COND12_M, COND12_DELAY_LENGTH, C (COND_JUMP_DELAY, COND32), },
350 /* C (COND_JUMP_DELAY, COND32) */
351 { COND32_F, COND32_M, COND32_LENGTH, 0, },
352 /* C (COND_JUMP_DELAY, UNDEF_WORD_DISP) */
353 { 0, 0, COND32_LENGTH, 0, },
355 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
358 /* C (UNCOND_JUMP, UNCOND12) */
359 { UNCOND12_F, UNCOND12_M, UNCOND12_LENGTH, C (UNCOND_JUMP, UNCOND32), },
360 /* C (UNCOND_JUMP, UNCOND32) */
361 { UNCOND32_F, UNCOND32_M, UNCOND32_LENGTH, 0, },
363 /* C (UNCOND_JUMP, UNDEF_WORD_DISP) */
364 { 0, 0, UNCOND32_LENGTH, 0, },
366 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
369 /* C (SH64PCREL16_32, SH64PCREL16) */
371 { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16_32, SH64PCREL32) },
372 /* C (SH64PCREL16_32, SH64PCREL32) */
373 { 0, 0, SH64PCREL32_LENGTH, 0 },
375 /* C (SH64PCREL16_32, SH64PCRELPLT) */
376 { 0, 0, SH64PCREL32_LENGTH, 0 },
378 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
380 /* C (SH64PCREL16_64, SH64PCREL16) */
382 { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16_64, SH64PCREL32) },
383 /* C (SH64PCREL16_64, SH64PCREL32) */
384 { SH64PCREL32_F, SH64PCREL32_M, SH64PCREL32_LENGTH, C (SH64PCREL16_64, SH64PCREL48) },
385 /* C (SH64PCREL16_64, SH64PCREL48) */
386 { SH64PCREL48_F, SH64PCREL48_M, SH64PCREL48_LENGTH, C (SH64PCREL16_64, SH64PCREL64) },
387 /* C (SH64PCREL16_64, SH64PCREL64) */
388 { 0, 0, SH64PCREL64_LENGTH, 0 },
389 /* C (SH64PCREL16_64, SH64PCRELPLT) */
390 { 0, 0, SH64PCREL64_LENGTH, 0 },
392 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
394 /* C (SH64PCREL16PT_32, SH64PCREL16) */
396 { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16PT_32, SH64PCREL32) },
397 /* C (SH64PCREL16PT_32, SH64PCREL32) */
398 { 0, 0, SH64PCREL32_LENGTH, 0 },
400 /* C (SH64PCREL16PT_32, SH64PCRELPLT) */
401 { 0, 0, SH64PCREL32_LENGTH, 0 },
403 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
405 /* C (SH64PCREL16PT_64, SH64PCREL16) */
407 { SH64PCREL16_F, SH64PCREL16_M, SH64PCREL16_LENGTH, C (SH64PCREL16PT_64, SH64PCREL32) },
408 /* C (SH64PCREL16PT_64, SH64PCREL32) */
412 C (SH64PCREL16PT_64, SH64PCREL48) },
413 /* C (SH64PCREL16PT_64, SH64PCREL48) */
414 { SH64PCREL48_F, SH64PCREL48_M, SH64PCREL48_LENGTH, C (SH64PCREL16PT_64, SH64PCREL64) },
415 /* C (SH64PCREL16PT_64, SH64PCREL64) */
416 { 0, 0, SH64PCREL64_LENGTH, 0 },
417 /* C (SH64PCREL16PT_64, SH64PCRELPLT) */
418 { 0, 0, SH64PCREL64_LENGTH, 0},
420 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
422 /* C (MOVI_IMM_32, UNDEF_MOVI) */
423 { 0, 0, MOVI_32_LENGTH, 0 },
424 /* C (MOVI_IMM_32, MOVI_16) */
425 { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_32, MOVI_32) },
426 /* C (MOVI_IMM_32, MOVI_32) */
427 { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, 0 },
429 /* C (MOVI_IMM_32, MOVI_GOTOFF) */
430 { 0, 0, MOVI_32_LENGTH, 0 },
431 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
433 /* C (MOVI_IMM_32_PCREL, MOVI_16) */
435 { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_32_PCREL, MOVI_32) },
436 /* C (MOVI_IMM_32_PCREL, MOVI_32) */
437 { 0, 0, MOVI_32_LENGTH, 0 },
439 /* C (MOVI_IMM_32_PCREL, MOVI_PLT) */
440 { 0, 0, MOVI_32_LENGTH, 0 },
442 /* C (MOVI_IMM_32_PCREL, MOVI_GOTPC) */
443 { 0, 0, MOVI_32_LENGTH, 0 },
444 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
446 /* C (MOVI_IMM_64, UNDEF_MOVI) */
447 { 0, 0, MOVI_64_LENGTH, 0 },
448 /* C (MOVI_IMM_64, MOVI_16) */
449 { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_64, MOVI_32) },
450 /* C (MOVI_IMM_64, MOVI_32) */
451 { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, C (MOVI_IMM_64, MOVI_48) },
452 /* C (MOVI_IMM_64, MOVI_48) */
453 { MOVI_48_F, MOVI_48_M, MOVI_48_LENGTH, C (MOVI_IMM_64, MOVI_64) },
454 /* C (MOVI_IMM_64, MOVI_64) */
455 { 0, 0, MOVI_64_LENGTH, 0 },
457 /* C (MOVI_IMM_64, MOVI_GOTOFF) */
458 { 0, 0, MOVI_64_LENGTH, 0 },
459 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
461 /* C (MOVI_IMM_64_PCREL, MOVI_16) */
463 { MOVI_16_F, MOVI_16_M, MOVI_16_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_32) },
464 /* C (MOVI_IMM_64_PCREL, MOVI_32) */
465 { MOVI_32_F, MOVI_32_M, MOVI_32_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_48) },
466 /* C (MOVI_IMM_64_PCREL, MOVI_48) */
467 { MOVI_48_F, MOVI_48_M, MOVI_48_LENGTH, C (MOVI_IMM_64_PCREL, MOVI_64) },
468 /* C (MOVI_IMM_64_PCREL, MOVI_64) */
469 { 0, 0, MOVI_64_LENGTH, 0 },
470 /* C (MOVI_IMM_64_PCREL, MOVI_PLT) */
471 { 0, 0, MOVI_64_LENGTH, 0 },
473 /* C (MOVI_IMM_64_PCREL, MOVI_GOTPC) */
474 { 0, 0, MOVI_64_LENGTH, 0 },
475 EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY, EMPTY,
477 #endif /* HAVE_SH64 */
483 static struct hash_control *opcode_hash_control; /* Opcode mnemonics */
487 /* Determinet whether the symbol needs any kind of PIC relocation. */
490 sh_PIC_related_p (symbolS *sym)
497 if (sym == GOT_symbol)
501 if (sh_PIC_related_p (*symbol_get_tc (sym)))
505 exp = symbol_get_value_expression (sym);
507 return (exp->X_op == O_PIC_reloc
508 || sh_PIC_related_p (exp->X_add_symbol)
509 || sh_PIC_related_p (exp->X_op_symbol));
512 /* Determine the relocation type to be used to represent the
513 expression, that may be rearranged. */
516 sh_check_fixup (expressionS *main_exp, bfd_reloc_code_real_type *r_type_p)
518 expressionS *exp = main_exp;
520 /* This is here for backward-compatibility only. GCC used to generated:
522 f@PLT + . - (.LPCS# + 2)
524 but we'd rather be able to handle this as a PIC-related reference
525 plus/minus a symbol. However, gas' parser gives us:
527 O_subtract (O_add (f@PLT, .), .LPCS#+2)
529 so we attempt to transform this into:
531 O_subtract (f@PLT, O_subtract (.LPCS#+2, .))
533 which we can handle simply below. */
534 if (exp->X_op == O_subtract)
536 if (sh_PIC_related_p (exp->X_op_symbol))
539 exp = symbol_get_value_expression (exp->X_add_symbol);
541 if (exp && sh_PIC_related_p (exp->X_op_symbol))
544 if (exp && exp->X_op == O_add
545 && sh_PIC_related_p (exp->X_add_symbol))
547 symbolS *sym = exp->X_add_symbol;
549 exp->X_op = O_subtract;
550 exp->X_add_symbol = main_exp->X_op_symbol;
552 main_exp->X_op_symbol = main_exp->X_add_symbol;
553 main_exp->X_add_symbol = sym;
555 main_exp->X_add_number += exp->X_add_number;
556 exp->X_add_number = 0;
561 else if (exp->X_op == O_add && sh_PIC_related_p (exp->X_op_symbol))
564 if (exp->X_op == O_symbol || exp->X_op == O_add || exp->X_op == O_subtract)
567 if (exp->X_add_symbol
568 && (exp->X_add_symbol == GOT_symbol
570 && *symbol_get_tc (exp->X_add_symbol) == GOT_symbol)))
574 case BFD_RELOC_SH_IMM_LOW16:
575 *r_type_p = BFD_RELOC_SH_GOTPC_LOW16;
578 case BFD_RELOC_SH_IMM_MEDLOW16:
579 *r_type_p = BFD_RELOC_SH_GOTPC_MEDLOW16;
582 case BFD_RELOC_SH_IMM_MEDHI16:
583 *r_type_p = BFD_RELOC_SH_GOTPC_MEDHI16;
586 case BFD_RELOC_SH_IMM_HI16:
587 *r_type_p = BFD_RELOC_SH_GOTPC_HI16;
591 case BFD_RELOC_UNUSED:
592 *r_type_p = BFD_RELOC_SH_GOTPC;
601 if (exp->X_add_symbol && exp->X_add_symbol == GOT_symbol)
603 *r_type_p = BFD_RELOC_SH_GOTPC;
607 exp = symbol_get_value_expression (exp->X_add_symbol);
612 if (exp->X_op == O_PIC_reloc)
618 case BFD_RELOC_UNUSED:
619 *r_type_p = exp->X_md;
622 case BFD_RELOC_SH_IMM_LOW16:
625 case BFD_RELOC_32_GOTOFF:
626 *r_type_p = BFD_RELOC_SH_GOTOFF_LOW16;
629 case BFD_RELOC_SH_GOTPLT32:
630 *r_type_p = BFD_RELOC_SH_GOTPLT_LOW16;
633 case BFD_RELOC_32_GOT_PCREL:
634 *r_type_p = BFD_RELOC_SH_GOT_LOW16;
637 case BFD_RELOC_32_PLT_PCREL:
638 *r_type_p = BFD_RELOC_SH_PLT_LOW16;
646 case BFD_RELOC_SH_IMM_MEDLOW16:
649 case BFD_RELOC_32_GOTOFF:
650 *r_type_p = BFD_RELOC_SH_GOTOFF_MEDLOW16;
653 case BFD_RELOC_SH_GOTPLT32:
654 *r_type_p = BFD_RELOC_SH_GOTPLT_MEDLOW16;
657 case BFD_RELOC_32_GOT_PCREL:
658 *r_type_p = BFD_RELOC_SH_GOT_MEDLOW16;
661 case BFD_RELOC_32_PLT_PCREL:
662 *r_type_p = BFD_RELOC_SH_PLT_MEDLOW16;
670 case BFD_RELOC_SH_IMM_MEDHI16:
673 case BFD_RELOC_32_GOTOFF:
674 *r_type_p = BFD_RELOC_SH_GOTOFF_MEDHI16;
677 case BFD_RELOC_SH_GOTPLT32:
678 *r_type_p = BFD_RELOC_SH_GOTPLT_MEDHI16;
681 case BFD_RELOC_32_GOT_PCREL:
682 *r_type_p = BFD_RELOC_SH_GOT_MEDHI16;
685 case BFD_RELOC_32_PLT_PCREL:
686 *r_type_p = BFD_RELOC_SH_PLT_MEDHI16;
694 case BFD_RELOC_SH_IMM_HI16:
697 case BFD_RELOC_32_GOTOFF:
698 *r_type_p = BFD_RELOC_SH_GOTOFF_HI16;
701 case BFD_RELOC_SH_GOTPLT32:
702 *r_type_p = BFD_RELOC_SH_GOTPLT_HI16;
705 case BFD_RELOC_32_GOT_PCREL:
706 *r_type_p = BFD_RELOC_SH_GOT_HI16;
709 case BFD_RELOC_32_PLT_PCREL:
710 *r_type_p = BFD_RELOC_SH_PLT_HI16;
722 *r_type_p = exp->X_md;
725 exp->X_op = O_symbol;
728 main_exp->X_add_symbol = exp->X_add_symbol;
729 main_exp->X_add_number += exp->X_add_number;
733 return (sh_PIC_related_p (exp->X_add_symbol)
734 || sh_PIC_related_p (exp->X_op_symbol));
739 /* Add expression EXP of SIZE bytes to offset OFF of fragment FRAG. */
742 sh_cons_fix_new (fragS *frag, int off, int size, expressionS *exp)
744 bfd_reloc_code_real_type r_type = BFD_RELOC_UNUSED;
746 if (sh_check_fixup (exp, &r_type))
747 as_bad (_("Invalid PIC expression."));
749 if (r_type == BFD_RELOC_UNUSED)
753 r_type = BFD_RELOC_8;
757 r_type = BFD_RELOC_16;
761 r_type = BFD_RELOC_32;
766 r_type = BFD_RELOC_64;
776 as_bad (_("unsupported BFD relocation size %u"), size);
777 r_type = BFD_RELOC_UNUSED;
780 fix_new_exp (frag, off, size, exp, 0, r_type);
783 /* The regular cons() function, that reads constants, doesn't support
784 suffixes such as @GOT, @GOTOFF and @PLT, that generate
785 machine-specific relocation types. So we must define it here. */
786 /* Clobbers input_line_pointer, checks end-of-line. */
787 /* NBYTES 1=.byte, 2=.word, 4=.long */
789 sh_elf_cons (register int nbytes)
795 /* Update existing range to include a previous insn, if there was one. */
796 sh64_update_contents_mark (TRUE);
798 /* We need to make sure the contents type is set to data. */
801 #endif /* HAVE_SH64 */
803 if (is_it_end_of_statement ())
805 demand_empty_rest_of_line ();
810 md_cons_align (nbytes);
816 emit_expr (&exp, (unsigned int) nbytes);
818 while (*input_line_pointer++ == ',');
820 input_line_pointer--; /* Put terminator back into stream. */
821 if (*input_line_pointer == '#' || *input_line_pointer == '!')
823 while (! is_end_of_line[(unsigned char) *input_line_pointer++]);
826 demand_empty_rest_of_line ();
829 /* The regular frag_offset_fixed_p doesn't work for rs_align_test
833 align_test_frag_offset_fixed_p (const fragS *frag1, const fragS *frag2,
839 /* Start with offset initialised to difference between the two frags.
840 Prior to assigning frag addresses this will be zero. */
841 off = frag1->fr_address - frag2->fr_address;
848 /* Maybe frag2 is after frag1. */
850 while (frag->fr_type == rs_fill
851 || frag->fr_type == rs_align_test)
853 if (frag->fr_type == rs_fill)
854 off += frag->fr_fix + frag->fr_offset * frag->fr_var;
857 frag = frag->fr_next;
867 /* Maybe frag1 is after frag2. */
868 off = frag1->fr_address - frag2->fr_address;
870 while (frag->fr_type == rs_fill
871 || frag->fr_type == rs_align_test)
873 if (frag->fr_type == rs_fill)
874 off -= frag->fr_fix + frag->fr_offset * frag->fr_var;
877 frag = frag->fr_next;
890 /* Optimize a difference of symbols which have rs_align_test frag if
894 sh_optimize_expr (expressionS *l, operatorT op, expressionS *r)
899 && l->X_op == O_symbol
900 && r->X_op == O_symbol
901 && S_GET_SEGMENT (l->X_add_symbol) == S_GET_SEGMENT (r->X_add_symbol)
902 && (SEG_NORMAL (S_GET_SEGMENT (l->X_add_symbol))
903 || r->X_add_symbol == l->X_add_symbol)
904 && align_test_frag_offset_fixed_p (symbol_get_frag (l->X_add_symbol),
905 symbol_get_frag (r->X_add_symbol),
908 l->X_add_number -= r->X_add_number;
909 l->X_add_number -= frag_off / OCTETS_PER_BYTE;
910 l->X_add_number += (S_GET_VALUE (l->X_add_symbol)
911 - S_GET_VALUE (r->X_add_symbol));
912 l->X_op = O_constant;
920 /* This function is called once, at assembler startup time. This should
921 set up all the tables, etc that the MD part of the assembler needs. */
926 const sh_opcode_info *opcode;
927 char *prev_name = "";
928 unsigned int target_arch;
931 = preset_target_arch ? preset_target_arch : arch_sh_up & ~arch_sh_has_dsp;
932 valid_arch = target_arch;
938 opcode_hash_control = hash_new ();
940 /* Insert unique names into hash table. */
941 for (opcode = sh_table; opcode->name; opcode++)
943 if (strcmp (prev_name, opcode->name) != 0)
945 if (!SH_MERGE_ARCH_SET_VALID (opcode->arch, target_arch))
947 prev_name = opcode->name;
948 hash_insert (opcode_hash_control, opcode->name, (char *) opcode);
955 static int reg_x, reg_y;
959 #define IDENT_CHAR(c) (ISALNUM (c) || (c) == '_')
961 /* Try to parse a reg name. Return the number of chars consumed. */
964 parse_reg_without_prefix (char *src, int *mode, int *reg)
966 char l0 = TOLOWER (src[0]);
967 char l1 = l0 ? TOLOWER (src[1]) : 0;
969 /* We use ! IDENT_CHAR for the next character after the register name, to
970 make sure that we won't accidentally recognize a symbol name such as
971 'sram' or sr_ram as being a reference to the register 'sr'. */
977 if (src[2] >= '0' && src[2] <= '5'
978 && ! IDENT_CHAR ((unsigned char) src[3]))
981 *reg = 10 + src[2] - '0';
985 if (l1 >= '0' && l1 <= '9'
986 && ! IDENT_CHAR ((unsigned char) src[2]))
992 if (l1 >= '0' && l1 <= '7' && strncasecmp (&src[2], "_bank", 5) == 0
993 && ! IDENT_CHAR ((unsigned char) src[7]))
1000 if (l1 == 'e' && ! IDENT_CHAR ((unsigned char) src[2]))
1005 if (l1 == 's' && ! IDENT_CHAR ((unsigned char) src[2]))
1016 if (! IDENT_CHAR ((unsigned char) src[2]))
1022 if (TOLOWER (src[2]) == 'g' && ! IDENT_CHAR ((unsigned char) src[3]))
1031 if (! IDENT_CHAR ((unsigned char) src[2]))
1037 if (TOLOWER (src[2]) == 'g' && ! IDENT_CHAR ((unsigned char) src[3]))
1045 if (l1 == 'x' && src[2] >= '0' && src[2] <= '1'
1046 && ! IDENT_CHAR ((unsigned char) src[3]))
1049 *reg = 4 + (l1 - '0');
1052 if (l1 == 'y' && src[2] >= '0' && src[2] <= '1'
1053 && ! IDENT_CHAR ((unsigned char) src[3]))
1056 *reg = 6 + (l1 - '0');
1059 if (l1 == 's' && src[2] >= '0' && src[2] <= '3'
1060 && ! IDENT_CHAR ((unsigned char) src[3]))
1065 *reg = n | ((~n & 2) << 1);
1070 if (l0 == 'i' && l1 && ! IDENT_CHAR ((unsigned char) src[2]))
1092 if (l0 == 'x' && l1 >= '0' && l1 <= '1'
1093 && ! IDENT_CHAR ((unsigned char) src[2]))
1096 *reg = A_X0_NUM + l1 - '0';
1100 if (l0 == 'y' && l1 >= '0' && l1 <= '1'
1101 && ! IDENT_CHAR ((unsigned char) src[2]))
1104 *reg = A_Y0_NUM + l1 - '0';
1108 if (l0 == 'm' && l1 >= '0' && l1 <= '1'
1109 && ! IDENT_CHAR ((unsigned char) src[2]))
1112 *reg = l1 == '0' ? A_M0_NUM : A_M1_NUM;
1118 && TOLOWER (src[2]) == 'r' && ! IDENT_CHAR ((unsigned char) src[3]))
1124 if (l0 == 's' && l1 == 'p' && TOLOWER (src[2]) == 'c'
1125 && ! IDENT_CHAR ((unsigned char) src[3]))
1131 if (l0 == 's' && l1 == 'g' && TOLOWER (src[2]) == 'r'
1132 && ! IDENT_CHAR ((unsigned char) src[3]))
1138 if (l0 == 'd' && l1 == 's' && TOLOWER (src[2]) == 'r'
1139 && ! IDENT_CHAR ((unsigned char) src[3]))
1145 if (l0 == 'd' && l1 == 'b' && TOLOWER (src[2]) == 'r'
1146 && ! IDENT_CHAR ((unsigned char) src[3]))
1152 if (l0 == 's' && l1 == 'r' && ! IDENT_CHAR ((unsigned char) src[2]))
1158 if (l0 == 's' && l1 == 'p' && ! IDENT_CHAR ((unsigned char) src[2]))
1165 if (l0 == 'p' && l1 == 'r' && ! IDENT_CHAR ((unsigned char) src[2]))
1170 if (l0 == 'p' && l1 == 'c' && ! IDENT_CHAR ((unsigned char) src[2]))
1172 /* Don't use A_DISP_PC here - that would accept stuff like 'mova pc,r0'
1173 and use an uninitialized immediate. */
1177 if (l0 == 'g' && l1 == 'b' && TOLOWER (src[2]) == 'r'
1178 && ! IDENT_CHAR ((unsigned char) src[3]))
1183 if (l0 == 'v' && l1 == 'b' && TOLOWER (src[2]) == 'r'
1184 && ! IDENT_CHAR ((unsigned char) src[3]))
1190 if (l0 == 't' && l1 == 'b' && TOLOWER (src[2]) == 'r'
1191 && ! IDENT_CHAR ((unsigned char) src[3]))
1196 if (l0 == 'm' && l1 == 'a' && TOLOWER (src[2]) == 'c'
1197 && ! IDENT_CHAR ((unsigned char) src[4]))
1199 if (TOLOWER (src[3]) == 'l')
1204 if (TOLOWER (src[3]) == 'h')
1210 if (l0 == 'm' && l1 == 'o' && TOLOWER (src[2]) == 'd'
1211 && ! IDENT_CHAR ((unsigned char) src[3]))
1216 if (l0 == 'f' && l1 == 'r')
1220 if (src[3] >= '0' && src[3] <= '5'
1221 && ! IDENT_CHAR ((unsigned char) src[4]))
1224 *reg = 10 + src[3] - '0';
1228 if (src[2] >= '0' && src[2] <= '9'
1229 && ! IDENT_CHAR ((unsigned char) src[3]))
1232 *reg = (src[2] - '0');
1236 if (l0 == 'd' && l1 == 'r')
1240 if (src[3] >= '0' && src[3] <= '4' && ! ((src[3] - '0') & 1)
1241 && ! IDENT_CHAR ((unsigned char) src[4]))
1244 *reg = 10 + src[3] - '0';
1248 if (src[2] >= '0' && src[2] <= '8' && ! ((src[2] - '0') & 1)
1249 && ! IDENT_CHAR ((unsigned char) src[3]))
1252 *reg = (src[2] - '0');
1256 if (l0 == 'x' && l1 == 'd')
1260 if (src[3] >= '0' && src[3] <= '4' && ! ((src[3] - '0') & 1)
1261 && ! IDENT_CHAR ((unsigned char) src[4]))
1264 *reg = 11 + src[3] - '0';
1268 if (src[2] >= '0' && src[2] <= '8' && ! ((src[2] - '0') & 1)
1269 && ! IDENT_CHAR ((unsigned char) src[3]))
1272 *reg = (src[2] - '0') + 1;
1276 if (l0 == 'f' && l1 == 'v')
1278 if (src[2] == '1'&& src[3] == '2' && ! IDENT_CHAR ((unsigned char) src[4]))
1284 if ((src[2] == '0' || src[2] == '4' || src[2] == '8')
1285 && ! IDENT_CHAR ((unsigned char) src[3]))
1288 *reg = (src[2] - '0');
1292 if (l0 == 'f' && l1 == 'p' && TOLOWER (src[2]) == 'u'
1293 && TOLOWER (src[3]) == 'l'
1294 && ! IDENT_CHAR ((unsigned char) src[4]))
1300 if (l0 == 'f' && l1 == 'p' && TOLOWER (src[2]) == 's'
1301 && TOLOWER (src[3]) == 'c'
1302 && TOLOWER (src[4]) == 'r' && ! IDENT_CHAR ((unsigned char) src[5]))
1308 if (l0 == 'x' && l1 == 'm' && TOLOWER (src[2]) == 't'
1309 && TOLOWER (src[3]) == 'r'
1310 && TOLOWER (src[4]) == 'x' && ! IDENT_CHAR ((unsigned char) src[5]))
1319 /* Like parse_reg_without_prefix, but this version supports
1320 $-prefixed register names if enabled by the user. */
1323 parse_reg (char *src, int *mode, int *reg)
1325 unsigned int prefix;
1326 unsigned int consumed;
1330 if (allow_dollar_register_prefix)
1341 consumed = parse_reg_without_prefix (src, mode, reg);
1346 return consumed + prefix;
1350 parse_exp (char *s, sh_operand_info *op)
1355 save = input_line_pointer;
1356 input_line_pointer = s;
1357 expression (&op->immediate);
1358 if (op->immediate.X_op == O_absent)
1359 as_bad (_("missing operand"));
1361 else if (op->immediate.X_op == O_PIC_reloc
1362 || sh_PIC_related_p (op->immediate.X_add_symbol)
1363 || sh_PIC_related_p (op->immediate.X_op_symbol))
1364 as_bad (_("misplaced PIC operand"));
1366 new = input_line_pointer;
1367 input_line_pointer = save;
1371 /* The many forms of operand:
1374 @Rn Register indirect
1387 pr, gbr, vbr, macl, mach
1391 parse_at (char *src, sh_operand_info *op)
1398 src = parse_at (src, op);
1399 if (op->type == A_DISP_TBR)
1400 op->type = A_DISP2_TBR;
1402 as_bad (_("illegal double indirection"));
1404 else if (src[0] == '-')
1406 /* Must be predecrement. */
1409 len = parse_reg (src, &mode, &(op->reg));
1410 if (mode != A_REG_N)
1411 as_bad (_("illegal register after @-"));
1416 else if (src[0] == '(')
1418 /* Could be @(disp, rn), @(disp, gbr), @(disp, pc), @(r0, gbr) or
1421 len = parse_reg (src, &mode, &(op->reg));
1422 if (len && mode == A_REG_N)
1427 as_bad (_("must be @(r0,...)"));
1432 /* Now can be rn or gbr. */
1433 len = parse_reg (src, &mode, &(op->reg));
1443 op->type = A_R0_GBR;
1445 else if (mode == A_REG_N)
1447 op->type = A_IND_R0_REG_N;
1451 as_bad (_("syntax error in @(r0,...)"));
1456 as_bad (_("syntax error in @(r0...)"));
1461 /* Must be an @(disp,.. thing). */
1462 src = parse_exp (src, op);
1465 /* Now can be rn, gbr or pc. */
1466 len = parse_reg (src, &mode, &op->reg);
1469 if (mode == A_REG_N)
1471 op->type = A_DISP_REG_N;
1473 else if (mode == A_GBR)
1475 op->type = A_DISP_GBR;
1477 else if (mode == A_TBR)
1479 op->type = A_DISP_TBR;
1481 else if (mode == A_PC)
1483 /* We want @(expr, pc) to uniformly address . + expr,
1484 no matter if expr is a constant, or a more complex
1485 expression, e.g. sym-. or sym1-sym2.
1486 However, we also used to accept @(sym,pc)
1487 as addressing sym, i.e. meaning the same as plain sym.
1488 Some existing code does use the @(sym,pc) syntax, so
1489 we give it the old semantics for now, but warn about
1490 its use, so that users have some time to fix their code.
1492 Note that due to this backward compatibility hack,
1493 we'll get unexpected results when @(offset, pc) is used,
1494 and offset is a symbol that is set later to an an address
1495 difference, or an external symbol that is set to an
1496 address difference in another source file, so we want to
1497 eventually remove it. */
1498 if (op->immediate.X_op == O_symbol)
1500 op->type = A_DISP_PC;
1501 as_warn (_("Deprecated syntax."));
1505 op->type = A_DISP_PC_ABS;
1506 /* Such operands don't get corrected for PC==.+4, so
1507 make the correction here. */
1508 op->immediate.X_add_number -= 4;
1513 as_bad (_("syntax error in @(disp,[Rn, gbr, pc])"));
1518 as_bad (_("syntax error in @(disp,[Rn, gbr, pc])"));
1523 as_bad (_("expecting )"));
1529 src += parse_reg (src, &mode, &(op->reg));
1530 if (mode != A_REG_N)
1531 as_bad (_("illegal register after @"));
1538 l0 = TOLOWER (src[0]);
1539 l1 = TOLOWER (src[1]);
1541 if ((l0 == 'r' && l1 == '8')
1542 || (l0 == 'i' && (l1 == 'x' || l1 == 's')))
1545 op->type = AX_PMOD_N;
1547 else if ( (l0 == 'r' && l1 == '9')
1548 || (l0 == 'i' && l1 == 'y'))
1551 op->type = AY_PMOD_N;
1563 get_operand (char **ptr, sh_operand_info *op)
1572 *ptr = parse_exp (src, op);
1577 else if (src[0] == '@')
1579 *ptr = parse_at (src, op);
1582 len = parse_reg (src, &mode, &(op->reg));
1591 /* Not a reg, the only thing left is a displacement. */
1592 *ptr = parse_exp (src, op);
1593 op->type = A_DISP_PC;
1599 get_operands (sh_opcode_info *info, char *args, sh_operand_info *operand)
1604 /* The pre-processor will eliminate whitespace in front of '@'
1605 after the first argument; we may be called multiple times
1606 from assemble_ppi, so don't insist on finding whitespace here. */
1610 get_operand (&ptr, operand + 0);
1617 get_operand (&ptr, operand + 1);
1618 /* ??? Hack: psha/pshl have a varying operand number depending on
1619 the type of the first operand. We handle this by having the
1620 three-operand version first and reducing the number of operands
1621 parsed to two if we see that the first operand is an immediate.
1622 This works because no insn with three operands has an immediate
1623 as first operand. */
1624 if (info->arg[2] && operand[0].type != A_IMM)
1630 get_operand (&ptr, operand + 2);
1634 operand[2].type = 0;
1639 operand[1].type = 0;
1640 operand[2].type = 0;
1645 operand[0].type = 0;
1646 operand[1].type = 0;
1647 operand[2].type = 0;
1652 /* Passed a pointer to a list of opcodes which use different
1653 addressing modes, return the opcode which matches the opcodes
1656 static sh_opcode_info *
1657 get_specific (sh_opcode_info *opcode, sh_operand_info *operands)
1659 sh_opcode_info *this_try = opcode;
1660 char *name = opcode->name;
1663 while (opcode->name)
1665 this_try = opcode++;
1666 if ((this_try->name != name) && (strcmp (this_try->name, name) != 0))
1668 /* We've looked so far down the table that we've run out of
1669 opcodes with the same name. */
1673 /* Look at both operands needed by the opcodes and provided by
1674 the user - since an arg test will often fail on the same arg
1675 again and again, we'll try and test the last failing arg the
1676 first on each opcode try. */
1677 for (n = 0; this_try->arg[n]; n++)
1679 sh_operand_info *user = operands + n;
1680 sh_arg_type arg = this_try->arg[n];
1682 if (SH_MERGE_ARCH_SET_VALID (valid_arch, arch_sh2a_nofpu_up)
1683 && ( arg == A_DISP_REG_M
1684 || arg == A_DISP_REG_N))
1686 /* Check a few key IMM* fields for overflow. */
1688 long val = user->immediate.X_add_number;
1690 for (opf = 0; opf < 4; opf ++)
1691 switch (this_try->nibbles[opf])
1695 if (val < 0 || val > 15)
1700 if (val < 0 || val > 15 * 2)
1705 if (val < 0 || val > 15 * 4)
1715 if (user->type == A_DISP_PC_ABS)
1726 if (user->type != arg)
1730 /* opcode needs r0 */
1731 if (user->type != A_REG_N || user->reg != 0)
1735 if (user->type != A_R0_GBR || user->reg != 0)
1739 if (user->type != F_REG_N || user->reg != 0)
1747 case A_IND_R0_REG_N:
1756 /* Opcode needs rn */
1757 if (user->type != arg)
1762 if (user->type != D_REG_N && user->type != X_REG_N)
1778 if (user->type != arg)
1783 if (user->type != arg)
1789 if (user->type != A_INC_N)
1791 if (user->reg != 15)
1797 if (user->type != A_DEC_N)
1799 if (user->reg != 15)
1808 case A_IND_R0_REG_M:
1811 /* Opcode needs rn */
1812 if (user->type != arg - A_REG_M + A_REG_N)
1818 if (user->type != A_DEC_N)
1820 if (user->reg < 2 || user->reg > 5)
1826 if (user->type != A_INC_N)
1828 if (user->reg < 2 || user->reg > 5)
1834 if (user->type != A_IND_N)
1836 if (user->reg < 2 || user->reg > 5)
1842 if (user->type != AX_PMOD_N)
1844 if (user->reg < 2 || user->reg > 5)
1850 if (user->type != A_INC_N)
1852 if (user->reg < 4 || user->reg > 5)
1858 if (user->type != A_IND_N)
1860 if (user->reg < 4 || user->reg > 5)
1866 if (user->type != AX_PMOD_N)
1868 if (user->reg < 4 || user->reg > 5)
1874 if (user->type != A_INC_N)
1876 if ((user->reg < 4 || user->reg > 5)
1877 && (user->reg < 0 || user->reg > 1))
1883 if (user->type != A_IND_N)
1885 if ((user->reg < 4 || user->reg > 5)
1886 && (user->reg < 0 || user->reg > 1))
1892 if (user->type != AX_PMOD_N)
1894 if ((user->reg < 4 || user->reg > 5)
1895 && (user->reg < 0 || user->reg > 1))
1901 if (user->type != A_INC_N)
1903 if (user->reg < 6 || user->reg > 7)
1909 if (user->type != A_IND_N)
1911 if (user->reg < 6 || user->reg > 7)
1917 if (user->type != AY_PMOD_N)
1919 if (user->reg < 6 || user->reg > 7)
1925 if (user->type != A_INC_N)
1927 if ((user->reg < 6 || user->reg > 7)
1928 && (user->reg < 2 || user->reg > 3))
1934 if (user->type != A_IND_N)
1936 if ((user->reg < 6 || user->reg > 7)
1937 && (user->reg < 2 || user->reg > 3))
1943 if (user->type != AY_PMOD_N)
1945 if ((user->reg < 6 || user->reg > 7)
1946 && (user->reg < 2 || user->reg > 3))
1952 if (user->type != DSP_REG_N)
1954 if (user->reg != A_A0_NUM
1955 && user->reg != A_A1_NUM)
1961 if (user->type != DSP_REG_N)
1983 if (user->type != DSP_REG_N)
2005 if (user->type != DSP_REG_N)
2027 if (user->type != DSP_REG_N)
2049 if (user->type != DSP_REG_N)
2071 if (user->type != DSP_REG_N)
2093 if (user->type != DSP_REG_N)
2115 if (user->type != DSP_REG_N)
2137 if (user->type != DSP_REG_N)
2159 if (user->type != DSP_REG_N || user->reg != A_A0_NUM)
2163 if (user->type != DSP_REG_N || user->reg != A_X0_NUM)
2167 if (user->type != DSP_REG_N || user->reg != A_X1_NUM)
2171 if (user->type != DSP_REG_N || user->reg != A_Y0_NUM)
2175 if (user->type != DSP_REG_N || user->reg != A_Y1_NUM)
2185 /* Opcode needs rn */
2186 if (user->type != arg - F_REG_M + F_REG_N)
2191 if (user->type != D_REG_N && user->type != X_REG_N)
2196 if (user->type != XMTRX_M4)
2202 printf (_("unhandled %d\n"), arg);
2206 if ( !SH_MERGE_ARCH_SET_VALID (valid_arch, this_try->arch))
2208 valid_arch = SH_MERGE_ARCH_SET (valid_arch, this_try->arch);
2218 insert (char *where, int how, int pcrel, sh_operand_info *op)
2220 fix_new_exp (frag_now,
2221 where - frag_now->fr_literal,
2229 insert4 (char * where, int how, int pcrel, sh_operand_info * op)
2231 fix_new_exp (frag_now,
2232 where - frag_now->fr_literal,
2239 build_relax (sh_opcode_info *opcode, sh_operand_info *op)
2241 int high_byte = target_big_endian ? 0 : 1;
2244 if (opcode->arg[0] == A_BDISP8)
2246 int what = (opcode->nibbles[1] & 4) ? COND_JUMP_DELAY : COND_JUMP;
2247 p = frag_var (rs_machine_dependent,
2248 md_relax_table[C (what, COND32)].rlx_length,
2249 md_relax_table[C (what, COND8)].rlx_length,
2251 op->immediate.X_add_symbol,
2252 op->immediate.X_add_number,
2254 p[high_byte] = (opcode->nibbles[0] << 4) | (opcode->nibbles[1]);
2256 else if (opcode->arg[0] == A_BDISP12)
2258 p = frag_var (rs_machine_dependent,
2259 md_relax_table[C (UNCOND_JUMP, UNCOND32)].rlx_length,
2260 md_relax_table[C (UNCOND_JUMP, UNCOND12)].rlx_length,
2262 op->immediate.X_add_symbol,
2263 op->immediate.X_add_number,
2265 p[high_byte] = (opcode->nibbles[0] << 4);
2270 /* Insert ldrs & ldre with fancy relocations that relaxation can recognize. */
2273 insert_loop_bounds (char *output, sh_operand_info *operand)
2278 /* Since the low byte of the opcode will be overwritten by the reloc, we
2279 can just stash the high byte into both bytes and ignore endianness. */
2282 insert (output, BFD_RELOC_SH_LOOP_START, 1, operand);
2283 insert (output, BFD_RELOC_SH_LOOP_END, 1, operand + 1);
2287 static int count = 0;
2289 /* If the last loop insn is a two-byte-insn, it is in danger of being
2290 swapped with the insn after it. To prevent this, create a new
2291 symbol - complete with SH_LABEL reloc - after the last loop insn.
2292 If the last loop insn is four bytes long, the symbol will be
2293 right in the middle, but four byte insns are not swapped anyways. */
2294 /* A REPEAT takes 6 bytes. The SH has a 32 bit address space.
2295 Hence a 9 digit number should be enough to count all REPEATs. */
2297 sprintf (name, "_R%x", count++ & 0x3fffffff);
2298 end_sym = symbol_new (name, undefined_section, 0, &zero_address_frag);
2299 /* Make this a local symbol. */
2301 SF_SET_LOCAL (end_sym);
2302 #endif /* OBJ_COFF */
2303 symbol_table_insert (end_sym);
2304 end_sym->sy_value = operand[1].immediate;
2305 end_sym->sy_value.X_add_number += 2;
2306 fix_new (frag_now, frag_now_fix (), 2, end_sym, 0, 1, BFD_RELOC_SH_LABEL);
2309 output = frag_more (2);
2312 insert (output, BFD_RELOC_SH_LOOP_START, 1, operand);
2313 insert (output, BFD_RELOC_SH_LOOP_END, 1, operand + 1);
2315 return frag_more (2);
2318 /* Now we know what sort of opcodes it is, let's build the bytes. */
2321 build_Mytes (sh_opcode_info *opcode, sh_operand_info *operand)
2326 unsigned int size = 2;
2327 int low_byte = target_big_endian ? 1 : 0;
2339 if (SH_MERGE_ARCH_SET (opcode->arch, arch_op32))
2341 output = frag_more (4);
2346 output = frag_more (2);
2348 for (index = 0; index < max_index; index++)
2350 sh_nibble_type i = opcode->nibbles[index];
2361 nbuf[index] = reg_n;
2364 nbuf[index] = reg_m;
2367 if (reg_n < 2 || reg_n > 5)
2368 as_bad (_("Invalid register: 'r%d'"), reg_n);
2369 nbuf[index] = (reg_n & 3) | 4;
2372 nbuf[index] = reg_n | (reg_m >> 2);
2375 nbuf[index] = reg_b | 0x08;
2378 nbuf[index] = reg_n | 0x01;
2381 nbuf[index] |= 0x08;
2383 insert (output + low_byte, BFD_RELOC_SH_IMM3, 0, operand);
2386 nbuf[index] |= 0x80;
2388 insert (output + low_byte, BFD_RELOC_SH_IMM3U, 0, operand);
2391 insert (output + 2, BFD_RELOC_SH_DISP12, 0, operand);
2394 insert (output + 2, BFD_RELOC_SH_DISP12BY2, 0, operand);
2397 insert (output + 2, BFD_RELOC_SH_DISP12BY4, 0, operand);
2400 insert (output + 2, BFD_RELOC_SH_DISP12BY8, 0, operand);
2403 insert (output + 2, BFD_RELOC_SH_DISP12, 0, operand+1);
2406 insert (output + 2, BFD_RELOC_SH_DISP12BY2, 0, operand+1);
2409 insert (output + 2, BFD_RELOC_SH_DISP12BY4, 0, operand+1);
2412 insert (output + 2, BFD_RELOC_SH_DISP12BY8, 0, operand+1);
2417 insert4 (output, BFD_RELOC_SH_DISP20, 0, operand);
2420 insert4 (output, BFD_RELOC_SH_DISP20BY8, 0, operand);
2423 insert (output + low_byte, BFD_RELOC_SH_IMM4BY4, 0, operand);
2426 insert (output + low_byte, BFD_RELOC_SH_IMM4BY2, 0, operand);
2429 insert (output + low_byte, BFD_RELOC_SH_IMM4, 0, operand);
2432 insert (output + low_byte, BFD_RELOC_SH_IMM4BY4, 0, operand + 1);
2435 insert (output + low_byte, BFD_RELOC_SH_IMM4BY2, 0, operand + 1);
2438 insert (output + low_byte, BFD_RELOC_SH_IMM4, 0, operand + 1);
2441 insert (output + low_byte, BFD_RELOC_SH_IMM8BY4, 0, operand);
2444 insert (output + low_byte, BFD_RELOC_SH_IMM8BY2, 0, operand);
2447 insert (output + low_byte, BFD_RELOC_SH_IMM8, 0, operand);
2450 insert (output + low_byte, BFD_RELOC_SH_IMM8BY4, 0, operand + 1);
2453 insert (output + low_byte, BFD_RELOC_SH_IMM8BY2, 0, operand + 1);
2456 insert (output + low_byte, BFD_RELOC_SH_IMM8, 0, operand + 1);
2459 insert (output, BFD_RELOC_SH_PCRELIMM8BY4,
2460 operand->type != A_DISP_PC_ABS, operand);
2463 insert (output, BFD_RELOC_SH_PCRELIMM8BY2,
2464 operand->type != A_DISP_PC_ABS, operand);
2467 output = insert_loop_bounds (output, operand);
2468 nbuf[index] = opcode->nibbles[3];
2472 printf (_("failed for %d\n"), i);
2476 if (!target_big_endian)
2478 output[1] = (nbuf[0] << 4) | (nbuf[1]);
2479 output[0] = (nbuf[2] << 4) | (nbuf[3]);
2483 output[0] = (nbuf[0] << 4) | (nbuf[1]);
2484 output[1] = (nbuf[2] << 4) | (nbuf[3]);
2486 if (SH_MERGE_ARCH_SET (opcode->arch, arch_op32))
2488 if (!target_big_endian)
2490 output[3] = (nbuf[4] << 4) | (nbuf[5]);
2491 output[2] = (nbuf[6] << 4) | (nbuf[7]);
2495 output[2] = (nbuf[4] << 4) | (nbuf[5]);
2496 output[3] = (nbuf[6] << 4) | (nbuf[7]);
2502 /* Find an opcode at the start of *STR_P in the hash table, and set
2503 *STR_P to the first character after the last one read. */
2505 static sh_opcode_info *
2506 find_cooked_opcode (char **str_p)
2509 unsigned char *op_start;
2510 unsigned char *op_end;
2514 /* Drop leading whitespace. */
2518 /* Find the op code end.
2519 The pre-processor will eliminate whitespace in front of
2520 any '@' after the first argument; we may be called from
2521 assemble_ppi, so the opcode might be terminated by an '@'. */
2522 for (op_start = op_end = (unsigned char *) str;
2525 && !is_end_of_line[*op_end] && *op_end != ' ' && *op_end != '@';
2528 unsigned char c = op_start[nlen];
2530 /* The machine independent code will convert CMP/EQ into cmp/EQ
2531 because it thinks the '/' is the end of the symbol. Moreover,
2532 all but the first sub-insn is a parallel processing insn won't
2533 be capitalized. Instead of hacking up the machine independent
2534 code, we just deal with it here. */
2541 *str_p = (char *) op_end;
2544 as_bad (_("can't find opcode "));
2546 return (sh_opcode_info *) hash_find (opcode_hash_control, name);
2549 /* Assemble a parallel processing insn. */
2550 #define DDT_BASE 0xf000 /* Base value for double data transfer insns */
2553 assemble_ppi (char *op_end, sh_opcode_info *opcode)
2565 sh_operand_info operand[3];
2567 /* Some insn ignore one or more register fields, e.g. psts machl,a0.
2568 Make sure we encode a defined insn pattern. */
2573 if (opcode->arg[0] != A_END)
2574 op_end = get_operands (opcode, op_end, operand);
2576 opcode = get_specific (opcode, operand);
2579 /* Couldn't find an opcode which matched the operands. */
2580 char *where = frag_more (2);
2585 as_bad (_("invalid operands for opcode"));
2589 if (opcode->nibbles[0] != PPI)
2590 as_bad (_("insn can't be combined with parallel processing insn"));
2592 switch (opcode->nibbles[1])
2597 as_bad (_("multiple movx specifications"));
2602 as_bad (_("multiple movy specifications"));
2608 as_bad (_("multiple movx specifications"));
2609 if ((reg_n < 4 || reg_n > 5)
2610 && (reg_n < 0 || reg_n > 1))
2611 as_bad (_("invalid movx address register"));
2612 if (movy && movy != DDT_BASE)
2613 as_bad (_("insn cannot be combined with non-nopy"));
2614 movx = ((((reg_n & 1) != 0) << 9)
2615 + (((reg_n & 4) == 0) << 8)
2617 + (opcode->nibbles[2] << 4)
2618 + opcode->nibbles[3]
2624 as_bad (_("multiple movy specifications"));
2625 if ((reg_n < 6 || reg_n > 7)
2626 && (reg_n < 2 || reg_n > 3))
2627 as_bad (_("invalid movy address register"));
2628 if (movx && movx != DDT_BASE)
2629 as_bad (_("insn cannot be combined with non-nopx"));
2630 movy = ((((reg_n & 1) != 0) << 8)
2631 + (((reg_n & 4) == 0) << 9)
2633 + (opcode->nibbles[2] << 4)
2634 + opcode->nibbles[3]
2640 as_bad (_("multiple movx specifications"));
2642 as_bad (_("previous movy requires nopx"));
2643 if (reg_n < 4 || reg_n > 5)
2644 as_bad (_("invalid movx address register"));
2645 if (opcode->nibbles[2] & 8)
2647 if (reg_m == A_A1_NUM)
2649 else if (reg_m != A_A0_NUM)
2650 as_bad (_("invalid movx dsp register"));
2655 as_bad (_("invalid movx dsp register"));
2658 movx += ((reg_n - 4) << 9) + (opcode->nibbles[2] << 2) + DDT_BASE;
2663 as_bad (_("multiple movy specifications"));
2665 as_bad (_("previous movx requires nopy"));
2666 if (opcode->nibbles[2] & 8)
2668 /* Bit 3 in nibbles[2] is intended for bit 4 of the opcode,
2671 if (reg_m == A_A1_NUM)
2673 else if (reg_m != A_A0_NUM)
2674 as_bad (_("invalid movy dsp register"));
2679 as_bad (_("invalid movy dsp register"));
2682 if (reg_n < 6 || reg_n > 7)
2683 as_bad (_("invalid movy address register"));
2684 movy += ((reg_n - 6) << 8) + opcode->nibbles[2] + DDT_BASE;
2688 if (operand[0].immediate.X_op != O_constant)
2689 as_bad (_("dsp immediate shift value not constant"));
2690 field_b = ((opcode->nibbles[2] << 12)
2691 | (operand[0].immediate.X_add_number & 127) << 4
2698 goto try_another_opcode;
2703 as_bad (_("multiple parallel processing specifications"));
2704 field_b = ((opcode->nibbles[2] << 12) + (opcode->nibbles[3] << 8)
2705 + (reg_x << 6) + (reg_y << 4) + reg_n);
2706 switch (opcode->nibbles[4])
2714 field_b += opcode->nibbles[4] << 4;
2722 as_bad (_("multiple condition specifications"));
2723 cond = opcode->nibbles[2] << 8;
2725 goto skip_cond_check;
2729 as_bad (_("multiple parallel processing specifications"));
2730 field_b = ((opcode->nibbles[2] << 12) + (opcode->nibbles[3] << 8)
2731 + cond + (reg_x << 6) + (reg_y << 4) + reg_n);
2733 switch (opcode->nibbles[4])
2741 field_b += opcode->nibbles[4] << 4;
2750 if ((field_b & 0xef00) == 0xa100)
2752 /* pclr Dz pmuls Se,Sf,Dg */
2753 else if ((field_b & 0xff00) == 0x8d00
2754 && (SH_MERGE_ARCH_SET_VALID (valid_arch, arch_sh4al_dsp_up)))
2756 valid_arch = SH_MERGE_ARCH_SET (valid_arch, arch_sh4al_dsp_up);
2760 as_bad (_("insn cannot be combined with pmuls"));
2761 switch (field_b & 0xf)
2764 field_b += 0 - A_X0_NUM;
2767 field_b += 1 - A_Y0_NUM;
2770 field_b += 2 - A_A0_NUM;
2773 field_b += 3 - A_A1_NUM;
2776 as_bad (_("bad combined pmuls output operand"));
2778 /* Generate warning if the destination register for padd / psub
2779 and pmuls is the same ( only for A0 or A1 ).
2780 If the last nibble is 1010 then A0 is used in both
2781 padd / psub and pmuls. If it is 1111 then A1 is used
2782 as destination register in both padd / psub and pmuls. */
2784 if ((((field_b | reg_efg) & 0x000F) == 0x000A)
2785 || (((field_b | reg_efg) & 0x000F) == 0x000F))
2786 as_warn (_("destination register is same for parallel insns"));
2788 field_b += 0x4000 + reg_efg;
2795 as_bad (_("condition not followed by conditionalizable insn"));
2801 opcode = find_cooked_opcode (&op_end);
2805 (_("unrecognized characters at end of parallel processing insn")));
2810 move_code = movx | movy;
2813 /* Parallel processing insn. */
2814 unsigned long ppi_code = (movx | movy | 0xf800) << 16 | field_b;
2816 output = frag_more (4);
2818 if (! target_big_endian)
2820 output[3] = ppi_code >> 8;
2821 output[2] = ppi_code;
2825 output[2] = ppi_code >> 8;
2826 output[3] = ppi_code;
2828 move_code |= 0xf800;
2832 /* Just a double data transfer. */
2833 output = frag_more (2);
2836 if (! target_big_endian)
2838 output[1] = move_code >> 8;
2839 output[0] = move_code;
2843 output[0] = move_code >> 8;
2844 output[1] = move_code;
2849 /* This is the guts of the machine-dependent assembler. STR points to a
2850 machine dependent instruction. This function is supposed to emit
2851 the frags/bytes it assembles to. */
2854 md_assemble (char *str)
2857 sh_operand_info operand[3];
2858 sh_opcode_info *opcode;
2859 unsigned int size = 0;
2860 char *initial_str = str;
2863 if (sh64_isa_mode == sh64_isa_shmedia)
2865 shmedia_md_assemble (str);
2870 /* If we've seen pseudo-directives, make sure any emitted data or
2871 frags are marked as data. */
2874 sh64_update_contents_mark (TRUE);
2875 sh64_set_contents_type (CRT_SH5_ISA16);
2880 #endif /* HAVE_SH64 */
2882 opcode = find_cooked_opcode (&str);
2887 /* The opcode is not in the hash table.
2888 This means we definitely have an assembly failure,
2889 but the instruction may be valid in another CPU variant.
2890 In this case emit something better than 'unknown opcode'.
2891 Search the full table in sh-opc.h to check. */
2893 char *name = initial_str;
2894 int name_length = 0;
2895 const sh_opcode_info *op;
2898 /* identify opcode in string */
2899 while (ISSPACE (*name))
2903 while (!ISSPACE (name[name_length]))
2908 /* search for opcode in full list */
2909 for (op = sh_table; op->name; op++)
2911 if (strncasecmp (op->name, name, name_length) == 0
2912 && op->name[name_length] == '\0')
2921 as_bad (_("opcode not valid for this cpu variant"));
2925 as_bad (_("unknown opcode"));
2931 && ! seg_info (now_seg)->tc_segment_info_data.in_code)
2933 /* Output a CODE reloc to tell the linker that the following
2934 bytes are instructions, not data. */
2935 fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0,
2937 seg_info (now_seg)->tc_segment_info_data.in_code = 1;
2940 if (opcode->nibbles[0] == PPI)
2942 size = assemble_ppi (op_end, opcode);
2946 if (opcode->arg[0] == A_BDISP12
2947 || opcode->arg[0] == A_BDISP8)
2949 /* Since we skip get_specific here, we have to check & update
2951 if (SH_MERGE_ARCH_SET_VALID (valid_arch, opcode->arch))
2952 valid_arch = SH_MERGE_ARCH_SET (valid_arch, opcode->arch);
2954 as_bad (_("Delayed branches not available on SH1"));
2955 parse_exp (op_end + 1, &operand[0]);
2956 build_relax (opcode, &operand[0]);
2958 /* All branches are currently 16 bit. */
2963 if (opcode->arg[0] == A_END)
2965 /* Ignore trailing whitespace. If there is any, it has already
2966 been compressed to a single space. */
2972 op_end = get_operands (opcode, op_end, operand);
2974 opcode = get_specific (opcode, operand);
2978 /* Couldn't find an opcode which matched the operands. */
2979 char *where = frag_more (2);
2984 as_bad (_("invalid operands for opcode"));
2989 as_bad (_("excess operands: '%s'"), op_end);
2991 size = build_Mytes (opcode, operand);
2996 dwarf2_emit_insn (size);
2999 /* This routine is called each time a label definition is seen. It
3000 emits a BFD_RELOC_SH_LABEL reloc if necessary. */
3003 sh_frob_label (symbolS *sym)
3005 static fragS *last_label_frag;
3006 static int last_label_offset;
3009 && seg_info (now_seg)->tc_segment_info_data.in_code)
3013 offset = frag_now_fix ();
3014 if (frag_now != last_label_frag
3015 || offset != last_label_offset)
3017 fix_new (frag_now, offset, 2, &abs_symbol, 0, 0, BFD_RELOC_SH_LABEL);
3018 last_label_frag = frag_now;
3019 last_label_offset = offset;
3023 dwarf2_emit_label (sym);
3026 /* This routine is called when the assembler is about to output some
3027 data. It emits a BFD_RELOC_SH_DATA reloc if necessary. */
3030 sh_flush_pending_output (void)
3033 && seg_info (now_seg)->tc_segment_info_data.in_code)
3035 fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0,
3037 seg_info (now_seg)->tc_segment_info_data.in_code = 0;
3042 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
3047 /* Various routines to kill one day. */
3048 /* Equal to MAX_PRECISION in atof-ieee.c. */
3049 #define MAX_LITTLENUMS 6
3051 /* Turn a string in input_line_pointer into a floating point constant
3052 of type TYPE, and store the appropriate bytes in *LITP. The number
3053 of LITTLENUMS emitted is stored in *SIZEP . An error message is
3054 returned, or NULL on OK. */
3057 md_atof (int type, char *litP, int *sizeP)
3060 LITTLENUM_TYPE words[4];
3076 return _("bad call to md_atof");
3079 t = atof_ieee (input_line_pointer, type, words);
3081 input_line_pointer = t;
3085 if (! target_big_endian)
3087 for (i = prec - 1; i >= 0; i--)
3089 md_number_to_chars (litP, (valueT) words[i], 2);
3095 for (i = 0; i < prec; i++)
3097 md_number_to_chars (litP, (valueT) words[i], 2);
3105 /* Handle the .uses pseudo-op. This pseudo-op is used just before a
3106 call instruction. It refers to a label of the instruction which
3107 loads the register which the call uses. We use it to generate a
3108 special reloc for the linker. */
3111 s_uses (int ignore ATTRIBUTE_UNUSED)
3116 as_warn (_(".uses pseudo-op seen when not relaxing"));
3120 if (ex.X_op != O_symbol || ex.X_add_number != 0)
3122 as_bad (_("bad .uses format"));
3123 ignore_rest_of_line ();
3127 fix_new_exp (frag_now, frag_now_fix (), 2, &ex, 1, BFD_RELOC_SH_USES);
3129 demand_empty_rest_of_line ();
3134 OPTION_RELAX = OPTION_MD_BASE,
3141 OPTION_ALLOW_REG_PREFIX,
3145 OPTION_SHCOMPACT_CONST_CRANGE,
3149 OPTION_DUMMY /* Not used. This is just here to make it easy to add and subtract options from this enum. */
3152 const char *md_shortopts = "";
3153 struct option md_longopts[] =
3155 {"relax", no_argument, NULL, OPTION_RELAX},
3156 {"big", no_argument, NULL, OPTION_BIG},
3157 {"little", no_argument, NULL, OPTION_LITTLE},
3158 /* The next two switches are here because the
3159 generic parts of the linker testsuite uses them. */
3160 {"EB", no_argument, NULL, OPTION_BIG},
3161 {"EL", no_argument, NULL, OPTION_LITTLE},
3162 {"small", no_argument, NULL, OPTION_SMALL},
3163 {"dsp", no_argument, NULL, OPTION_DSP},
3164 {"isa", required_argument, NULL, OPTION_ISA},
3165 {"renesas", no_argument, NULL, OPTION_RENESAS},
3166 {"allow-reg-prefix", no_argument, NULL, OPTION_ALLOW_REG_PREFIX},
3169 {"abi", required_argument, NULL, OPTION_ABI},
3170 {"no-mix", no_argument, NULL, OPTION_NO_MIX},
3171 {"shcompact-const-crange", no_argument, NULL, OPTION_SHCOMPACT_CONST_CRANGE},
3172 {"no-expand", no_argument, NULL, OPTION_NO_EXPAND},
3173 {"expand-pt32", no_argument, NULL, OPTION_PT32},
3174 #endif /* HAVE_SH64 */
3176 {NULL, no_argument, NULL, 0}
3178 size_t md_longopts_size = sizeof (md_longopts);
3181 md_parse_option (int c, char *arg ATTRIBUTE_UNUSED)
3190 target_big_endian = 1;
3194 target_big_endian = 0;
3202 preset_target_arch = arch_sh_up & ~(arch_sh_sp_fpu|arch_sh_dp_fpu);
3205 case OPTION_RENESAS:
3206 dont_adjust_reloc_32 = 1;
3209 case OPTION_ALLOW_REG_PREFIX:
3210 allow_dollar_register_prefix = 1;
3214 if (strcasecmp (arg, "dsp") == 0)
3215 preset_target_arch = arch_sh_up & ~(arch_sh_sp_fpu|arch_sh_dp_fpu);
3216 else if (strcasecmp (arg, "fp") == 0)
3217 preset_target_arch = arch_sh_up & ~arch_sh_has_dsp;
3218 else if (strcasecmp (arg, "any") == 0)
3219 preset_target_arch = arch_sh_up;
3221 else if (strcasecmp (arg, "shmedia") == 0)
3223 if (sh64_isa_mode == sh64_isa_shcompact)
3224 as_bad (_("Invalid combination: --isa=SHcompact with --isa=SHmedia"));
3225 sh64_isa_mode = sh64_isa_shmedia;
3227 else if (strcasecmp (arg, "shcompact") == 0)
3229 if (sh64_isa_mode == sh64_isa_shmedia)
3230 as_bad (_("Invalid combination: --isa=SHmedia with --isa=SHcompact"));
3231 if (sh64_abi == sh64_abi_64)
3232 as_bad (_("Invalid combination: --abi=64 with --isa=SHcompact"));
3233 sh64_isa_mode = sh64_isa_shcompact;
3235 #endif /* HAVE_SH64 */
3238 extern const bfd_arch_info_type bfd_sh_arch;
3239 bfd_arch_info_type const *bfd_arch = &bfd_sh_arch;
3241 preset_target_arch = 0;
3242 for (; bfd_arch; bfd_arch=bfd_arch->next)
3244 int len = strlen(bfd_arch->printable_name);
3246 if (bfd_arch->mach == bfd_mach_sh5)
3249 if (strncasecmp (bfd_arch->printable_name, arg, len) != 0)
3252 if (arg[len] == '\0')
3253 preset_target_arch =
3254 sh_get_arch_from_bfd_mach (bfd_arch->mach);
3255 else if (strcasecmp(&arg[len], "-up") == 0)
3256 preset_target_arch =
3257 sh_get_arch_up_from_bfd_mach (bfd_arch->mach);
3263 if (!preset_target_arch)
3264 as_bad ("Invalid argument to --isa option: %s", arg);
3270 if (strcmp (arg, "32") == 0)
3272 if (sh64_abi == sh64_abi_64)
3273 as_bad (_("Invalid combination: --abi=32 with --abi=64"));
3274 sh64_abi = sh64_abi_32;
3276 else if (strcmp (arg, "64") == 0)
3278 if (sh64_abi == sh64_abi_32)
3279 as_bad (_("Invalid combination: --abi=64 with --abi=32"));
3280 if (sh64_isa_mode == sh64_isa_shcompact)
3281 as_bad (_("Invalid combination: --isa=SHcompact with --abi=64"));
3282 sh64_abi = sh64_abi_64;
3285 as_bad ("Invalid argument to --abi option: %s", arg);
3292 case OPTION_SHCOMPACT_CONST_CRANGE:
3293 sh64_shcompact_const_crange = TRUE;
3296 case OPTION_NO_EXPAND:
3297 sh64_expand = FALSE;
3303 #endif /* HAVE_SH64 */
3313 md_show_usage (FILE *stream)
3315 fprintf (stream, _("\
3317 --little generate little endian code\n\
3318 --big generate big endian code\n\
3319 --relax alter jump instructions for long displacements\n\
3320 --renesas disable optimization with section symbol for\n\
3321 compatibility with Renesas assembler.\n\
3322 --small align sections to 4 byte boundaries, not 16\n\
3323 --dsp enable sh-dsp insns, and disable floating-point ISAs.\n\
3324 --allow-reg-prefix allow '$' as a register name prefix.\n\
3325 --isa=[any use most appropriate isa\n\
3326 | dsp same as '-dsp'\n\
3329 extern const bfd_arch_info_type bfd_sh_arch;
3330 bfd_arch_info_type const *bfd_arch = &bfd_sh_arch;
3332 for (; bfd_arch; bfd_arch=bfd_arch->next)
3333 if (bfd_arch->mach != bfd_mach_sh5)
3335 fprintf (stream, "\n | %s", bfd_arch->printable_name);
3336 fprintf (stream, "\n | %s-up", bfd_arch->printable_name);
3339 fprintf (stream, "]\n");
3341 fprintf (stream, _("\
3342 --isa=[shmedia set as the default instruction set for SH64\n\
3346 fprintf (stream, _("\
3347 --abi=[32|64] set size of expanded SHmedia operands and object\n\
3349 --shcompact-const-crange emit code-range descriptors for constants in\n\
3350 SHcompact code sections\n\
3351 --no-mix disallow SHmedia code in the same section as\n\
3352 constants and SHcompact code\n\
3353 --no-expand do not expand MOVI, PT, PTA or PTB instructions\n\
3354 --expand-pt32 with -abi=64, expand PT, PTA and PTB instructions\n\
3355 to 32 bits only\n"));
3356 #endif /* HAVE_SH64 */
3359 /* This struct is used to pass arguments to sh_count_relocs through
3360 bfd_map_over_sections. */
3362 struct sh_count_relocs
3364 /* Symbol we are looking for. */
3366 /* Count of relocs found. */
3370 /* Count the number of fixups in a section which refer to a particular
3371 symbol. This is called via bfd_map_over_sections. */
3374 sh_count_relocs (bfd *abfd ATTRIBUTE_UNUSED, segT sec, void *data)
3376 struct sh_count_relocs *info = (struct sh_count_relocs *) data;
3377 segment_info_type *seginfo;
3381 seginfo = seg_info (sec);
3382 if (seginfo == NULL)
3386 for (fix = seginfo->fix_root; fix != NULL; fix = fix->fx_next)
3388 if (fix->fx_addsy == sym)
3396 /* Handle the count relocs for a particular section.
3397 This is called via bfd_map_over_sections. */
3400 sh_frob_section (bfd *abfd ATTRIBUTE_UNUSED, segT sec,
3401 void *ignore ATTRIBUTE_UNUSED)
3403 segment_info_type *seginfo;
3406 seginfo = seg_info (sec);
3407 if (seginfo == NULL)
3410 for (fix = seginfo->fix_root; fix != NULL; fix = fix->fx_next)
3414 sym = fix->fx_addsy;
3415 /* Check for a local_symbol. */
3416 if (sym && sym->bsym == NULL)
3418 struct local_symbol *ls = (struct local_symbol *)sym;
3419 /* See if it's been converted. If so, canonicalize. */
3420 if (local_symbol_converted_p (ls))
3421 fix->fx_addsy = local_symbol_get_real_symbol (ls);
3425 for (fix = seginfo->fix_root; fix != NULL; fix = fix->fx_next)
3430 struct sh_count_relocs info;
3432 if (fix->fx_r_type != BFD_RELOC_SH_USES)
3435 /* The BFD_RELOC_SH_USES reloc should refer to a defined local
3436 symbol in the same section. */
3437 sym = fix->fx_addsy;
3439 || fix->fx_subsy != NULL
3440 || fix->fx_addnumber != 0
3441 || S_GET_SEGMENT (sym) != sec
3442 || S_IS_EXTERNAL (sym))
3444 as_warn_where (fix->fx_file, fix->fx_line,
3445 _(".uses does not refer to a local symbol in the same section"));
3449 /* Look through the fixups again, this time looking for one
3450 at the same location as sym. */
3451 val = S_GET_VALUE (sym);
3452 for (fscan = seginfo->fix_root;
3454 fscan = fscan->fx_next)
3455 if (val == fscan->fx_frag->fr_address + fscan->fx_where
3456 && fscan->fx_r_type != BFD_RELOC_SH_ALIGN
3457 && fscan->fx_r_type != BFD_RELOC_SH_CODE
3458 && fscan->fx_r_type != BFD_RELOC_SH_DATA
3459 && fscan->fx_r_type != BFD_RELOC_SH_LABEL)
3463 as_warn_where (fix->fx_file, fix->fx_line,
3464 _("can't find fixup pointed to by .uses"));
3468 if (fscan->fx_tcbit)
3470 /* We've already done this one. */
3474 /* The variable fscan should also be a fixup to a local symbol
3475 in the same section. */
3476 sym = fscan->fx_addsy;
3478 || fscan->fx_subsy != NULL
3479 || fscan->fx_addnumber != 0
3480 || S_GET_SEGMENT (sym) != sec
3481 || S_IS_EXTERNAL (sym))
3483 as_warn_where (fix->fx_file, fix->fx_line,
3484 _(".uses target does not refer to a local symbol in the same section"));
3488 /* Now we look through all the fixups of all the sections,
3489 counting the number of times we find a reference to sym. */
3492 bfd_map_over_sections (stdoutput, sh_count_relocs, &info);
3497 /* Generate a BFD_RELOC_SH_COUNT fixup at the location of sym.
3498 We have already adjusted the value of sym to include the
3499 fragment address, so we undo that adjustment here. */
3500 subseg_change (sec, 0);
3501 fix_new (fscan->fx_frag,
3502 S_GET_VALUE (sym) - fscan->fx_frag->fr_address,
3503 4, &abs_symbol, info.count, 0, BFD_RELOC_SH_COUNT);
3507 /* This function is called after the symbol table has been completed,
3508 but before the relocs or section contents have been written out.
3509 If we have seen any .uses pseudo-ops, they point to an instruction
3510 which loads a register with the address of a function. We look
3511 through the fixups to find where the function address is being
3512 loaded from. We then generate a COUNT reloc giving the number of
3513 times that function address is referred to. The linker uses this
3514 information when doing relaxing, to decide when it can eliminate
3515 the stored function address entirely. */
3521 shmedia_frob_file_before_adjust ();
3527 bfd_map_over_sections (stdoutput, sh_frob_section, NULL);
3530 /* Called after relaxing. Set the correct sizes of the fragments, and
3531 create relocs so that md_apply_fix will fill in the correct values. */
3534 md_convert_frag (bfd *headers ATTRIBUTE_UNUSED, segT seg, fragS *fragP)
3538 switch (fragP->fr_subtype)
3540 case C (COND_JUMP, COND8):
3541 case C (COND_JUMP_DELAY, COND8):
3542 subseg_change (seg, 0);
3543 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset,
3544 1, BFD_RELOC_SH_PCDISP8BY2);
3549 case C (UNCOND_JUMP, UNCOND12):
3550 subseg_change (seg, 0);
3551 fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, fragP->fr_offset,
3552 1, BFD_RELOC_SH_PCDISP12BY2);
3557 case C (UNCOND_JUMP, UNCOND32):
3558 case C (UNCOND_JUMP, UNDEF_WORD_DISP):
3559 if (fragP->fr_symbol == NULL)
3560 as_bad_where (fragP->fr_file, fragP->fr_line,
3561 _("displacement overflows 12-bit field"));
3562 else if (S_IS_DEFINED (fragP->fr_symbol))
3563 as_bad_where (fragP->fr_file, fragP->fr_line,
3564 _("displacement to defined symbol %s overflows 12-bit field"),
3565 S_GET_NAME (fragP->fr_symbol));
3567 as_bad_where (fragP->fr_file, fragP->fr_line,
3568 _("displacement to undefined symbol %s overflows 12-bit field"),
3569 S_GET_NAME (fragP->fr_symbol));
3570 /* Stabilize this frag, so we don't trip an assert. */
3571 fragP->fr_fix += fragP->fr_var;
3575 case C (COND_JUMP, COND12):
3576 case C (COND_JUMP_DELAY, COND12):
3577 /* A bcond won't fit, so turn it into a b!cond; bra disp; nop. */
3578 /* I found that a relax failure for gcc.c-torture/execute/930628-1.c
3579 was due to gas incorrectly relaxing an out-of-range conditional
3580 branch with delay slot. It turned:
3581 bf.s L6 (slot mov.l r12,@(44,r0))
3584 2c: 8f 01 a0 8b bf.s 32 <_main+32> (slot bra L6)
3586 32: 10 cb mov.l r12,@(44,r0)
3587 Therefore, branches with delay slots have to be handled
3588 differently from ones without delay slots. */
3590 unsigned char *buffer =
3591 (unsigned char *) (fragP->fr_fix + fragP->fr_literal);
3592 int highbyte = target_big_endian ? 0 : 1;
3593 int lowbyte = target_big_endian ? 1 : 0;
3594 int delay = fragP->fr_subtype == C (COND_JUMP_DELAY, COND12);
3596 /* Toggle the true/false bit of the bcond. */
3597 buffer[highbyte] ^= 0x2;
3599 /* If this is a delayed branch, we may not put the bra in the
3600 slot. So we change it to a non-delayed branch, like that:
3601 b! cond slot_label; bra disp; slot_label: slot_insn
3602 ??? We should try if swapping the conditional branch and
3603 its delay-slot insn already makes the branch reach. */
3605 /* Build a relocation to six / four bytes farther on. */
3606 subseg_change (seg, 0);
3607 fix_new (fragP, fragP->fr_fix, 2, section_symbol (seg),
3608 fragP->fr_address + fragP->fr_fix + (delay ? 4 : 6),
3609 1, BFD_RELOC_SH_PCDISP8BY2);
3611 /* Set up a jump instruction. */
3612 buffer[highbyte + 2] = 0xa0;
3613 buffer[lowbyte + 2] = 0;
3614 fix_new (fragP, fragP->fr_fix + 2, 2, fragP->fr_symbol,
3615 fragP->fr_offset, 1, BFD_RELOC_SH_PCDISP12BY2);
3619 buffer[highbyte] &= ~0x4; /* Removes delay slot from branch. */
3624 /* Fill in a NOP instruction. */
3625 buffer[highbyte + 4] = 0x0;
3626 buffer[lowbyte + 4] = 0x9;
3635 case C (COND_JUMP, COND32):
3636 case C (COND_JUMP_DELAY, COND32):
3637 case C (COND_JUMP, UNDEF_WORD_DISP):
3638 case C (COND_JUMP_DELAY, UNDEF_WORD_DISP):
3639 if (fragP->fr_symbol == NULL)
3640 as_bad_where (fragP->fr_file, fragP->fr_line,
3641 _("displacement overflows 8-bit field"));
3642 else if (S_IS_DEFINED (fragP->fr_symbol))
3643 as_bad_where (fragP->fr_file, fragP->fr_line,
3644 _("displacement to defined symbol %s overflows 8-bit field"),
3645 S_GET_NAME (fragP->fr_symbol));
3647 as_bad_where (fragP->fr_file, fragP->fr_line,
3648 _("displacement to undefined symbol %s overflows 8-bit field "),
3649 S_GET_NAME (fragP->fr_symbol));
3650 /* Stabilize this frag, so we don't trip an assert. */
3651 fragP->fr_fix += fragP->fr_var;
3657 shmedia_md_convert_frag (headers, seg, fragP, TRUE);
3663 if (donerelax && !sh_relax)
3664 as_warn_where (fragP->fr_file, fragP->fr_line,
3665 _("overflow in branch to %s; converted into longer instruction sequence"),
3666 (fragP->fr_symbol != NULL
3667 ? S_GET_NAME (fragP->fr_symbol)
3672 md_section_align (segT seg ATTRIBUTE_UNUSED, valueT size)
3676 #else /* ! OBJ_ELF */
3677 return ((size + (1 << bfd_get_section_alignment (stdoutput, seg)) - 1)
3678 & (-1 << bfd_get_section_alignment (stdoutput, seg)));
3679 #endif /* ! OBJ_ELF */
3682 /* This static variable is set by s_uacons to tell sh_cons_align that
3683 the expression does not need to be aligned. */
3685 static int sh_no_align_cons = 0;
3687 /* This handles the unaligned space allocation pseudo-ops, such as
3688 .uaword. .uaword is just like .word, but the value does not need
3692 s_uacons (int bytes)
3694 /* Tell sh_cons_align not to align this value. */
3695 sh_no_align_cons = 1;
3699 /* If a .word, et. al., pseud-op is seen, warn if the value is not
3700 aligned correctly. Note that this can cause warnings to be issued
3701 when assembling initialized structured which were declared with the
3702 packed attribute. FIXME: Perhaps we should require an option to
3703 enable this warning? */
3706 sh_cons_align (int nbytes)
3711 if (sh_no_align_cons)
3713 /* This is an unaligned pseudo-op. */
3714 sh_no_align_cons = 0;
3719 while ((nbytes & 1) == 0)
3728 if (now_seg == absolute_section)
3730 if ((abs_section_offset & ((1 << nalign) - 1)) != 0)
3731 as_warn (_("misaligned data"));
3735 p = frag_var (rs_align_test, 1, 1, (relax_substateT) 0,
3736 (symbolS *) NULL, (offsetT) nalign, (char *) NULL);
3738 record_alignment (now_seg, nalign);
3741 /* When relaxing, we need to output a reloc for any .align directive
3742 that requests alignment to a four byte boundary or larger. This is
3743 also where we check for misaligned data. */
3746 sh_handle_align (fragS *frag)
3748 int bytes = frag->fr_next->fr_address - frag->fr_address - frag->fr_fix;
3750 if (frag->fr_type == rs_align_code)
3752 static const unsigned char big_nop_pattern[] = { 0x00, 0x09 };
3753 static const unsigned char little_nop_pattern[] = { 0x09, 0x00 };
3755 char *p = frag->fr_literal + frag->fr_fix;
3764 if (target_big_endian)
3766 memcpy (p, big_nop_pattern, sizeof big_nop_pattern);
3767 frag->fr_var = sizeof big_nop_pattern;
3771 memcpy (p, little_nop_pattern, sizeof little_nop_pattern);
3772 frag->fr_var = sizeof little_nop_pattern;
3775 else if (frag->fr_type == rs_align_test)
3778 as_bad_where (frag->fr_file, frag->fr_line, _("misaligned data"));
3782 && (frag->fr_type == rs_align
3783 || frag->fr_type == rs_align_code)
3784 && frag->fr_address + frag->fr_fix > 0
3785 && frag->fr_offset > 1
3786 && now_seg != bss_section)
3787 fix_new (frag, frag->fr_fix, 2, &abs_symbol, frag->fr_offset, 0,
3788 BFD_RELOC_SH_ALIGN);
3791 /* See whether the relocation should be resolved locally. */
3794 sh_local_pcrel (fixS *fix)
3797 && (fix->fx_r_type == BFD_RELOC_SH_PCDISP8BY2
3798 || fix->fx_r_type == BFD_RELOC_SH_PCDISP12BY2
3799 || fix->fx_r_type == BFD_RELOC_SH_PCRELIMM8BY2
3800 || fix->fx_r_type == BFD_RELOC_SH_PCRELIMM8BY4
3801 || fix->fx_r_type == BFD_RELOC_8_PCREL
3802 || fix->fx_r_type == BFD_RELOC_SH_SWITCH16
3803 || fix->fx_r_type == BFD_RELOC_SH_SWITCH32));
3806 /* See whether we need to force a relocation into the output file.
3807 This is used to force out switch and PC relative relocations when
3811 sh_force_relocation (fixS *fix)
3813 /* These relocations can't make it into a DSO, so no use forcing
3814 them for global symbols. */
3815 if (sh_local_pcrel (fix))
3818 /* Make sure some relocations get emitted. */
3819 if (fix->fx_r_type == BFD_RELOC_SH_LOOP_START
3820 || fix->fx_r_type == BFD_RELOC_SH_LOOP_END
3821 || fix->fx_r_type == BFD_RELOC_SH_TLS_GD_32
3822 || fix->fx_r_type == BFD_RELOC_SH_TLS_LD_32
3823 || fix->fx_r_type == BFD_RELOC_SH_TLS_IE_32
3824 || fix->fx_r_type == BFD_RELOC_SH_TLS_LDO_32
3825 || fix->fx_r_type == BFD_RELOC_SH_TLS_LE_32
3826 || generic_force_reloc (fix))
3832 return (fix->fx_pcrel
3833 || SWITCH_TABLE (fix)
3834 || fix->fx_r_type == BFD_RELOC_SH_COUNT
3835 || fix->fx_r_type == BFD_RELOC_SH_ALIGN
3836 || fix->fx_r_type == BFD_RELOC_SH_CODE
3837 || fix->fx_r_type == BFD_RELOC_SH_DATA
3839 || fix->fx_r_type == BFD_RELOC_SH_SHMEDIA_CODE
3841 || fix->fx_r_type == BFD_RELOC_SH_LABEL);
3846 sh_fix_adjustable (fixS *fixP)
3848 if (fixP->fx_r_type == BFD_RELOC_32_PLT_PCREL
3849 || fixP->fx_r_type == BFD_RELOC_32_GOT_PCREL
3850 || fixP->fx_r_type == BFD_RELOC_SH_GOTPC
3851 || ((fixP->fx_r_type == BFD_RELOC_32) && dont_adjust_reloc_32)
3852 || fixP->fx_r_type == BFD_RELOC_RVA)
3855 /* We need the symbol name for the VTABLE entries */
3856 if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
3857 || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
3864 sh_elf_final_processing (void)
3868 /* Set file-specific flags to indicate if this code needs
3869 a processor with the sh-dsp / sh2e ISA to execute. */
3871 /* SH5 and above don't know about the valid_arch arch_sh* bits defined
3872 in sh-opc.h, so check SH64 mode before checking valid_arch. */
3873 if (sh64_isa_mode != sh64_isa_unspecified)
3876 #elif defined TARGET_SYMBIAN
3879 extern int sh_symbian_find_elf_flags (unsigned int);
3881 val = sh_symbian_find_elf_flags (valid_arch);
3884 #endif /* HAVE_SH64 */
3885 val = sh_find_elf_flags (valid_arch);
3887 elf_elfheader (stdoutput)->e_flags &= ~EF_SH_MACH_MASK;
3888 elf_elfheader (stdoutput)->e_flags |= val;
3892 /* Apply fixup FIXP to SIZE-byte field BUF given that VAL is its
3893 assembly-time value. If we're generating a reloc for FIXP,
3894 see whether the addend should be stored in-place or whether
3895 it should be in an ELF r_addend field. */
3898 apply_full_field_fix (fixS *fixP, char *buf, bfd_vma val, int size)
3900 reloc_howto_type *howto;
3902 if (fixP->fx_addsy != NULL || fixP->fx_pcrel)
3904 howto = bfd_reloc_type_lookup (stdoutput, fixP->fx_r_type);
3905 if (howto && !howto->partial_inplace)
3907 fixP->fx_addnumber = val;
3911 md_number_to_chars (buf, val, size);
3914 /* Apply a fixup to the object file. */
3917 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
3919 char *buf = fixP->fx_where + fixP->fx_frag->fr_literal;
3920 int lowbyte = target_big_endian ? 1 : 0;
3921 int highbyte = target_big_endian ? 0 : 1;
3922 long val = (long) *valP;
3926 /* A difference between two symbols, the second of which is in the
3927 current section, is transformed in a PC-relative relocation to
3928 the other symbol. We have to adjust the relocation type here. */
3931 switch (fixP->fx_r_type)
3937 fixP->fx_r_type = BFD_RELOC_32_PCREL;
3940 /* Currently, we only support 32-bit PCREL relocations.
3941 We'd need a new reloc type to handle 16_PCREL, and
3942 8_PCREL is already taken for R_SH_SWITCH8, which
3943 apparently does something completely different than what
3946 bfd_set_error (bfd_error_bad_value);
3950 bfd_set_error (bfd_error_bad_value);
3955 /* The function adjust_reloc_syms won't convert a reloc against a weak
3956 symbol into a reloc against a section, but bfd_install_relocation
3957 will screw up if the symbol is defined, so we have to adjust val here
3958 to avoid the screw up later.
3960 For ordinary relocs, this does not happen for ELF, since for ELF,
3961 bfd_install_relocation uses the "special function" field of the
3962 howto, and does not execute the code that needs to be undone, as long
3963 as the special function does not return bfd_reloc_continue.
3964 It can happen for GOT- and PLT-type relocs the way they are
3965 described in elf32-sh.c as they use bfd_elf_generic_reloc, but it
3966 doesn't matter here since those relocs don't use VAL; see below. */
3967 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
3968 && fixP->fx_addsy != NULL
3969 && S_IS_WEAK (fixP->fx_addsy))
3970 val -= S_GET_VALUE (fixP->fx_addsy);
3972 if (SWITCH_TABLE (fixP))
3973 val -= S_GET_VALUE (fixP->fx_subsy);
3977 switch (fixP->fx_r_type)
3979 case BFD_RELOC_SH_IMM3:
3981 * buf = (* buf & 0xf8) | (val & 0x7);
3983 case BFD_RELOC_SH_IMM3U:
3985 * buf = (* buf & 0x8f) | ((val & 0x7) << 4);
3987 case BFD_RELOC_SH_DISP12:
3989 buf[lowbyte] = val & 0xff;
3990 buf[highbyte] |= (val >> 8) & 0x0f;
3992 case BFD_RELOC_SH_DISP12BY2:
3995 buf[lowbyte] = (val >> 1) & 0xff;
3996 buf[highbyte] |= (val >> 9) & 0x0f;
3998 case BFD_RELOC_SH_DISP12BY4:
4001 buf[lowbyte] = (val >> 2) & 0xff;
4002 buf[highbyte] |= (val >> 10) & 0x0f;
4004 case BFD_RELOC_SH_DISP12BY8:
4007 buf[lowbyte] = (val >> 3) & 0xff;
4008 buf[highbyte] |= (val >> 11) & 0x0f;
4010 case BFD_RELOC_SH_DISP20:
4011 if (! target_big_endian)
4015 buf[1] = (buf[1] & 0x0f) | ((val >> 12) & 0xf0);
4016 buf[2] = (val >> 8) & 0xff;
4017 buf[3] = val & 0xff;
4019 case BFD_RELOC_SH_DISP20BY8:
4020 if (!target_big_endian)
4025 buf[1] = (buf[1] & 0x0f) | ((val >> 20) & 0xf0);
4026 buf[2] = (val >> 16) & 0xff;
4027 buf[3] = (val >> 8) & 0xff;
4030 case BFD_RELOC_SH_IMM4:
4032 *buf = (*buf & 0xf0) | (val & 0xf);
4035 case BFD_RELOC_SH_IMM4BY2:
4038 *buf = (*buf & 0xf0) | ((val >> 1) & 0xf);
4041 case BFD_RELOC_SH_IMM4BY4:
4044 *buf = (*buf & 0xf0) | ((val >> 2) & 0xf);
4047 case BFD_RELOC_SH_IMM8BY2:
4053 case BFD_RELOC_SH_IMM8BY4:
4060 case BFD_RELOC_SH_IMM8:
4061 /* Sometimes the 8 bit value is sign extended (e.g., add) and
4062 sometimes it is not (e.g., and). We permit any 8 bit value.
4063 Note that adding further restrictions may invalidate
4064 reasonable looking assembly code, such as ``and -0x1,r0''. */
4070 case BFD_RELOC_SH_PCRELIMM8BY4:
4071 /* The lower two bits of the PC are cleared before the
4072 displacement is added in. We can assume that the destination
4073 is on a 4 byte boundary. If this instruction is also on a 4
4074 byte boundary, then we want
4076 and target - here is a multiple of 4.
4077 Otherwise, we are on a 2 byte boundary, and we want
4078 (target - (here - 2)) / 4
4079 and target - here is not a multiple of 4. Computing
4080 (target - (here - 2)) / 4 == (target - here + 2) / 4
4081 works for both cases, since in the first case the addition of
4082 2 will be removed by the division. target - here is in the
4084 val = (val + 2) / 4;
4086 as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far"));
4090 case BFD_RELOC_SH_PCRELIMM8BY2:
4093 as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far"));
4097 case BFD_RELOC_SH_PCDISP8BY2:
4099 if (val < -0x80 || val > 0x7f)
4100 as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far"));
4104 case BFD_RELOC_SH_PCDISP12BY2:
4106 if (val < -0x800 || val > 0x7ff)
4107 as_bad_where (fixP->fx_file, fixP->fx_line, _("pcrel too far"));
4108 buf[lowbyte] = val & 0xff;
4109 buf[highbyte] |= (val >> 8) & 0xf;
4113 case BFD_RELOC_32_PCREL:
4114 apply_full_field_fix (fixP, buf, val, 4);
4118 apply_full_field_fix (fixP, buf, val, 2);
4121 case BFD_RELOC_SH_USES:
4122 /* Pass the value into sh_reloc(). */
4123 fixP->fx_addnumber = val;
4126 case BFD_RELOC_SH_COUNT:
4127 case BFD_RELOC_SH_ALIGN:
4128 case BFD_RELOC_SH_CODE:
4129 case BFD_RELOC_SH_DATA:
4130 case BFD_RELOC_SH_LABEL:
4131 /* Nothing to do here. */
4134 case BFD_RELOC_SH_LOOP_START:
4135 case BFD_RELOC_SH_LOOP_END:
4137 case BFD_RELOC_VTABLE_INHERIT:
4138 case BFD_RELOC_VTABLE_ENTRY:
4143 case BFD_RELOC_32_PLT_PCREL:
4144 /* Make the jump instruction point to the address of the operand. At
4145 runtime we merely add the offset to the actual PLT entry. */
4146 * valP = 0xfffffffc;
4147 val = fixP->fx_offset;
4149 val -= S_GET_VALUE (fixP->fx_subsy);
4150 apply_full_field_fix (fixP, buf, val, 4);
4153 case BFD_RELOC_SH_GOTPC:
4154 /* This is tough to explain. We end up with this one if we have
4155 operands that look like "_GLOBAL_OFFSET_TABLE_+[.-.L284]".
4156 The goal here is to obtain the absolute address of the GOT,
4157 and it is strongly preferable from a performance point of
4158 view to avoid using a runtime relocation for this. There are
4159 cases where you have something like:
4161 .long _GLOBAL_OFFSET_TABLE_+[.-.L66]
4163 and here no correction would be required. Internally in the
4164 assembler we treat operands of this form as not being pcrel
4165 since the '.' is explicitly mentioned, and I wonder whether
4166 it would simplify matters to do it this way. Who knows. In
4167 earlier versions of the PIC patches, the pcrel_adjust field
4168 was used to store the correction, but since the expression is
4169 not pcrel, I felt it would be confusing to do it this way. */
4171 apply_full_field_fix (fixP, buf, val, 4);
4174 case BFD_RELOC_SH_TLS_GD_32:
4175 case BFD_RELOC_SH_TLS_LD_32:
4176 case BFD_RELOC_SH_TLS_IE_32:
4177 S_SET_THREAD_LOCAL (fixP->fx_addsy);
4179 case BFD_RELOC_32_GOT_PCREL:
4180 case BFD_RELOC_SH_GOTPLT32:
4181 * valP = 0; /* Fully resolved at runtime. No addend. */
4182 apply_full_field_fix (fixP, buf, 0, 4);
4185 case BFD_RELOC_SH_TLS_LDO_32:
4186 case BFD_RELOC_SH_TLS_LE_32:
4187 S_SET_THREAD_LOCAL (fixP->fx_addsy);
4189 case BFD_RELOC_32_GOTOFF:
4190 apply_full_field_fix (fixP, buf, val, 4);
4196 shmedia_md_apply_fix (fixP, valP);
4205 if ((val & ((1 << shift) - 1)) != 0)
4206 as_bad_where (fixP->fx_file, fixP->fx_line, _("misaligned offset"));
4210 val = ((val >> shift)
4211 | ((long) -1 & ~ ((long) -1 >> shift)));
4213 if (max != 0 && (val < min || val > max))
4214 as_bad_where (fixP->fx_file, fixP->fx_line, _("offset out of range"));
4216 /* Stop the generic code from trying to overlow check the value as well.
4217 It may not have the correct value anyway, as we do not store val back
4219 fixP->fx_no_overflow = 1;
4221 if (fixP->fx_addsy == NULL && fixP->fx_pcrel == 0)
4225 /* Called just before address relaxation. Return the length
4226 by which a fragment must grow to reach it's destination. */
4229 md_estimate_size_before_relax (fragS *fragP, segT segment_type)
4233 switch (fragP->fr_subtype)
4237 return shmedia_md_estimate_size_before_relax (fragP, segment_type);
4243 case C (UNCOND_JUMP, UNDEF_DISP):
4244 /* Used to be a branch to somewhere which was unknown. */
4245 if (!fragP->fr_symbol)
4247 fragP->fr_subtype = C (UNCOND_JUMP, UNCOND12);
4249 else if (S_GET_SEGMENT (fragP->fr_symbol) == segment_type)
4251 fragP->fr_subtype = C (UNCOND_JUMP, UNCOND12);
4255 fragP->fr_subtype = C (UNCOND_JUMP, UNDEF_WORD_DISP);
4259 case C (COND_JUMP, UNDEF_DISP):
4260 case C (COND_JUMP_DELAY, UNDEF_DISP):
4261 what = GET_WHAT (fragP->fr_subtype);
4262 /* Used to be a branch to somewhere which was unknown. */
4263 if (fragP->fr_symbol
4264 && S_GET_SEGMENT (fragP->fr_symbol) == segment_type)
4266 /* Got a symbol and it's defined in this segment, become byte
4267 sized - maybe it will fix up. */
4268 fragP->fr_subtype = C (what, COND8);
4270 else if (fragP->fr_symbol)
4272 /* Its got a segment, but its not ours, so it will always be long. */
4273 fragP->fr_subtype = C (what, UNDEF_WORD_DISP);
4277 /* We know the abs value. */
4278 fragP->fr_subtype = C (what, COND8);
4282 case C (UNCOND_JUMP, UNCOND12):
4283 case C (UNCOND_JUMP, UNCOND32):
4284 case C (UNCOND_JUMP, UNDEF_WORD_DISP):
4285 case C (COND_JUMP, COND8):
4286 case C (COND_JUMP, COND12):
4287 case C (COND_JUMP, COND32):
4288 case C (COND_JUMP, UNDEF_WORD_DISP):
4289 case C (COND_JUMP_DELAY, COND8):
4290 case C (COND_JUMP_DELAY, COND12):
4291 case C (COND_JUMP_DELAY, COND32):
4292 case C (COND_JUMP_DELAY, UNDEF_WORD_DISP):
4293 /* When relaxing a section for the second time, we don't need to
4294 do anything besides return the current size. */
4298 fragP->fr_var = md_relax_table[fragP->fr_subtype].rlx_length;
4299 return fragP->fr_var;
4302 /* Put number into target byte order. */
4305 md_number_to_chars (char *ptr, valueT use, int nbytes)
4308 /* We might need to set the contents type to data. */
4309 sh64_flag_output ();
4312 if (! target_big_endian)
4313 number_to_chars_littleendian (ptr, use, nbytes);
4315 number_to_chars_bigendian (ptr, use, nbytes);
4318 /* This version is used in obj-coff.c eg. for the sh-hms target. */
4321 md_pcrel_from (fixS *fixP)
4323 return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address + 2;
4327 md_pcrel_from_section (fixS *fixP, segT sec)
4329 if (! sh_local_pcrel (fixP)
4330 && fixP->fx_addsy != (symbolS *) NULL
4331 && (generic_force_reloc (fixP)
4332 || S_GET_SEGMENT (fixP->fx_addsy) != sec))
4334 /* The symbol is undefined (or is defined but not in this section,
4335 or we're not sure about it being the final definition). Let the
4336 linker figure it out. We need to adjust the subtraction of a
4337 symbol to the position of the relocated data, though. */
4338 return fixP->fx_subsy ? fixP->fx_where + fixP->fx_frag->fr_address : 0;
4341 return md_pcrel_from (fixP);
4344 /* Create a reloc. */
4347 tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
4350 bfd_reloc_code_real_type r_type;
4352 rel = (arelent *) xmalloc (sizeof (arelent));
4353 rel->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
4354 *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
4355 rel->address = fixp->fx_frag->fr_address + fixp->fx_where;
4357 r_type = fixp->fx_r_type;
4359 if (SWITCH_TABLE (fixp))
4361 *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy);
4363 if (r_type == BFD_RELOC_16)
4364 r_type = BFD_RELOC_SH_SWITCH16;
4365 else if (r_type == BFD_RELOC_8)
4366 r_type = BFD_RELOC_8_PCREL;
4367 else if (r_type == BFD_RELOC_32)
4368 r_type = BFD_RELOC_SH_SWITCH32;
4372 else if (r_type == BFD_RELOC_SH_USES)
4373 rel->addend = fixp->fx_addnumber;
4374 else if (r_type == BFD_RELOC_SH_COUNT)
4375 rel->addend = fixp->fx_offset;
4376 else if (r_type == BFD_RELOC_SH_ALIGN)
4377 rel->addend = fixp->fx_offset;
4378 else if (r_type == BFD_RELOC_VTABLE_INHERIT
4379 || r_type == BFD_RELOC_VTABLE_ENTRY)
4380 rel->addend = fixp->fx_offset;
4381 else if (r_type == BFD_RELOC_SH_LOOP_START
4382 || r_type == BFD_RELOC_SH_LOOP_END)
4383 rel->addend = fixp->fx_offset;
4384 else if (r_type == BFD_RELOC_SH_LABEL && fixp->fx_pcrel)
4387 rel->address = rel->addend = fixp->fx_offset;
4390 else if (shmedia_init_reloc (rel, fixp))
4394 rel->addend = fixp->fx_addnumber;
4396 rel->howto = bfd_reloc_type_lookup (stdoutput, r_type);
4398 if (rel->howto == NULL)
4400 as_bad_where (fixp->fx_file, fixp->fx_line,
4401 _("Cannot represent relocation type %s"),
4402 bfd_get_reloc_code_name (r_type));
4403 /* Set howto to a garbage value so that we can keep going. */
4404 rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32);
4405 assert (rel->howto != NULL);
4408 else if (rel->howto->type == R_SH_IND12W)
4409 rel->addend += fixp->fx_offset - 4;
4416 inline static char *
4417 sh_end_of_match (char *cont, char *what)
4419 int len = strlen (what);
4421 if (strncasecmp (cont, what, strlen (what)) == 0
4422 && ! is_part_of_name (cont[len]))
4429 sh_parse_name (char const *name,
4431 enum expr_mode mode,
4434 char *next = input_line_pointer;
4439 exprP->X_op_symbol = NULL;
4441 if (strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0)
4444 GOT_symbol = symbol_find_or_make (name);
4446 exprP->X_add_symbol = GOT_symbol;
4448 /* If we have an absolute symbol or a reg, then we know its
4450 segment = S_GET_SEGMENT (exprP->X_add_symbol);
4451 if (mode != expr_defer && segment == absolute_section)
4453 exprP->X_op = O_constant;
4454 exprP->X_add_number = S_GET_VALUE (exprP->X_add_symbol);
4455 exprP->X_add_symbol = NULL;
4457 else if (mode != expr_defer && segment == reg_section)
4459 exprP->X_op = O_register;
4460 exprP->X_add_number = S_GET_VALUE (exprP->X_add_symbol);
4461 exprP->X_add_symbol = NULL;
4465 exprP->X_op = O_symbol;
4466 exprP->X_add_number = 0;
4472 exprP->X_add_symbol = symbol_find_or_make (name);
4474 if (*nextcharP != '@')
4476 else if ((next_end = sh_end_of_match (next + 1, "GOTOFF")))
4477 reloc_type = BFD_RELOC_32_GOTOFF;
4478 else if ((next_end = sh_end_of_match (next + 1, "GOTPLT")))
4479 reloc_type = BFD_RELOC_SH_GOTPLT32;
4480 else if ((next_end = sh_end_of_match (next + 1, "GOT")))
4481 reloc_type = BFD_RELOC_32_GOT_PCREL;
4482 else if ((next_end = sh_end_of_match (next + 1, "PLT")))
4483 reloc_type = BFD_RELOC_32_PLT_PCREL;
4484 else if ((next_end = sh_end_of_match (next + 1, "TLSGD")))
4485 reloc_type = BFD_RELOC_SH_TLS_GD_32;
4486 else if ((next_end = sh_end_of_match (next + 1, "TLSLDM")))
4487 reloc_type = BFD_RELOC_SH_TLS_LD_32;
4488 else if ((next_end = sh_end_of_match (next + 1, "GOTTPOFF")))
4489 reloc_type = BFD_RELOC_SH_TLS_IE_32;
4490 else if ((next_end = sh_end_of_match (next + 1, "TPOFF")))
4491 reloc_type = BFD_RELOC_SH_TLS_LE_32;
4492 else if ((next_end = sh_end_of_match (next + 1, "DTPOFF")))
4493 reloc_type = BFD_RELOC_SH_TLS_LDO_32;
4497 *input_line_pointer = *nextcharP;
4498 input_line_pointer = next_end;
4499 *nextcharP = *input_line_pointer;
4500 *input_line_pointer = '\0';
4502 exprP->X_op = O_PIC_reloc;
4503 exprP->X_add_number = 0;
4504 exprP->X_md = reloc_type;
4510 sh_cfi_frame_initial_instructions (void)
4512 cfi_add_CFA_def_cfa (15, 0);
4516 sh_regname_to_dw2regnum (char *regname)
4518 unsigned int regnum = -1;
4522 static struct { char *name; int dw2regnum; } regnames[] =
4524 { "pr", 17 }, { "t", 18 }, { "gbr", 19 }, { "mach", 20 },
4525 { "macl", 21 }, { "fpul", 23 }
4528 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
4529 if (strcmp (regnames[i].name, regname) == 0)
4530 return regnames[i].dw2regnum;
4532 if (regname[0] == 'r')
4535 regnum = strtoul (p, &q, 10);
4536 if (p == q || *q || regnum >= 16)
4539 else if (regname[0] == 'f' && regname[1] == 'r')
4542 regnum = strtoul (p, &q, 10);
4543 if (p == q || *q || regnum >= 16)
4547 else if (regname[0] == 'x' && regname[1] == 'd')
4550 regnum = strtoul (p, &q, 10);
4551 if (p == q || *q || regnum >= 8)
4557 #endif /* OBJ_ELF */