| 1 | /* tc-sparc.c -- Assemble for the SPARC |
| 2 | Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc. |
| 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #define cypress 1234 |
| 21 | |
| 22 | #include <stdio.h> |
| 23 | #include <ctype.h> |
| 24 | |
| 25 | #include "as.h" |
| 26 | #include "subsegs.h" |
| 27 | |
| 28 | /* careful, this file includes data *declarations* */ |
| 29 | #include "opcode/sparc.h" |
| 30 | |
| 31 | static void sparc_ip PARAMS ((char *)); |
| 32 | |
| 33 | static enum sparc_architecture current_architecture = v6; |
| 34 | static int architecture_requested; |
| 35 | static int warn_on_bump; |
| 36 | |
| 37 | extern int target_big_endian; |
| 38 | |
| 39 | const relax_typeS md_relax_table[1]; |
| 40 | |
| 41 | /* handle of the OPCODE hash table */ |
| 42 | static struct hash_control *op_hash = NULL; |
| 43 | |
| 44 | static void s_data1 PARAMS ((void)); |
| 45 | static void s_seg PARAMS ((int)); |
| 46 | static void s_proc PARAMS ((int)); |
| 47 | static void s_reserve PARAMS ((int)); |
| 48 | static void s_common PARAMS ((int)); |
| 49 | |
| 50 | const pseudo_typeS md_pseudo_table[] = |
| 51 | { |
| 52 | {"align", s_align_bytes, 0}, /* Defaulting is invalid (0) */ |
| 53 | {"common", s_common, 0}, |
| 54 | {"global", s_globl, 0}, |
| 55 | {"half", cons, 2}, |
| 56 | {"optim", s_ignore, 0}, |
| 57 | {"proc", s_proc, 0}, |
| 58 | {"reserve", s_reserve, 0}, |
| 59 | {"seg", s_seg, 0}, |
| 60 | {"skip", s_space, 0}, |
| 61 | {"word", cons, 4}, |
| 62 | /* start-sanitize-v9 */ |
| 63 | #ifndef NO_V9 |
| 64 | {"xword", cons, 8}, |
| 65 | #ifdef OBJ_ELF |
| 66 | {"uaxword", cons, 8}, |
| 67 | #endif |
| 68 | #endif |
| 69 | /* end-sanitize-v9 */ |
| 70 | #ifdef OBJ_ELF |
| 71 | /* these are specific to sparc/svr4 */ |
| 72 | {"pushsection", obj_elf_section, 0}, |
| 73 | {"popsection", obj_elf_previous, 0}, |
| 74 | {"uaword", cons, 4}, |
| 75 | {"uahalf", cons, 2}, |
| 76 | #endif |
| 77 | {NULL, 0, 0}, |
| 78 | }; |
| 79 | |
| 80 | const int md_short_jump_size = 4; |
| 81 | const int md_long_jump_size = 4; |
| 82 | const int md_reloc_size = 12; /* Size of relocation record */ |
| 83 | |
| 84 | /* This array holds the chars that always start a comment. If the |
| 85 | pre-processor is disabled, these aren't very useful */ |
| 86 | const char comment_chars[] = "!"; /* JF removed '|' from comment_chars */ |
| 87 | |
| 88 | /* This array holds the chars that only start a comment at the beginning of |
| 89 | a line. If the line seems to have the form '# 123 filename' |
| 90 | .line and .file directives will appear in the pre-processed output */ |
| 91 | /* Note that input_file.c hand checks for '#' at the beginning of the |
| 92 | first line of the input file. This is because the compiler outputs |
| 93 | #NO_APP at the beginning of its output. */ |
| 94 | /* Also note that comments started like this one will always |
| 95 | work if '/' isn't otherwise defined. */ |
| 96 | const char line_comment_chars[] = "#"; |
| 97 | |
| 98 | const char line_separator_chars[] = ""; |
| 99 | |
| 100 | /* Chars that can be used to separate mant from exp in floating point nums */ |
| 101 | const char EXP_CHARS[] = "eE"; |
| 102 | |
| 103 | /* Chars that mean this number is a floating point constant */ |
| 104 | /* As in 0f12.456 */ |
| 105 | /* or 0d1.2345e12 */ |
| 106 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; |
| 107 | |
| 108 | /* Also be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be |
| 109 | changed in read.c. Ideally it shouldn't have to know about it at all, |
| 110 | but nothing is ideal around here. */ |
| 111 | |
| 112 | static unsigned char octal[256]; |
| 113 | #define isoctal(c) octal[(unsigned char) (c)] |
| 114 | static unsigned char toHex[256]; |
| 115 | |
| 116 | struct sparc_it |
| 117 | { |
| 118 | char *error; |
| 119 | unsigned long opcode; |
| 120 | struct nlist *nlistp; |
| 121 | expressionS exp; |
| 122 | int pcrel; |
| 123 | bfd_reloc_code_real_type reloc; |
| 124 | }; |
| 125 | |
| 126 | struct sparc_it the_insn, set_insn; |
| 127 | |
| 128 | static INLINE int |
| 129 | in_signed_range (val, max) |
| 130 | bfd_signed_vma val, max; |
| 131 | { |
| 132 | if (max <= 0) |
| 133 | abort (); |
| 134 | if (val > max) |
| 135 | return 0; |
| 136 | if (val < ~max) |
| 137 | return 0; |
| 138 | return 1; |
| 139 | } |
| 140 | |
| 141 | #if 0 |
| 142 | static void print_insn PARAMS ((struct sparc_it *insn)); |
| 143 | #endif |
| 144 | static int getExpression PARAMS ((char *str)); |
| 145 | |
| 146 | static char *expr_end; |
| 147 | static int special_case; |
| 148 | |
| 149 | /* |
| 150 | * Instructions that require wierd handling because they're longer than |
| 151 | * 4 bytes. |
| 152 | */ |
| 153 | #define SPECIAL_CASE_SET 1 |
| 154 | #define SPECIAL_CASE_FDIV 2 |
| 155 | |
| 156 | /* |
| 157 | * sort of like s_lcomm |
| 158 | * |
| 159 | */ |
| 160 | #ifndef OBJ_ELF |
| 161 | static int max_alignment = 15; |
| 162 | #endif |
| 163 | |
| 164 | static void |
| 165 | s_reserve (ignore) |
| 166 | int ignore; |
| 167 | { |
| 168 | char *name; |
| 169 | char *p; |
| 170 | char c; |
| 171 | int align; |
| 172 | int size; |
| 173 | int temp; |
| 174 | symbolS *symbolP; |
| 175 | |
| 176 | name = input_line_pointer; |
| 177 | c = get_symbol_end (); |
| 178 | p = input_line_pointer; |
| 179 | *p = c; |
| 180 | SKIP_WHITESPACE (); |
| 181 | |
| 182 | if (*input_line_pointer != ',') |
| 183 | { |
| 184 | as_bad ("Expected comma after name"); |
| 185 | ignore_rest_of_line (); |
| 186 | return; |
| 187 | } |
| 188 | |
| 189 | ++input_line_pointer; |
| 190 | |
| 191 | if ((size = get_absolute_expression ()) < 0) |
| 192 | { |
| 193 | as_bad ("BSS length (%d.) <0! Ignored.", size); |
| 194 | ignore_rest_of_line (); |
| 195 | return; |
| 196 | } /* bad length */ |
| 197 | |
| 198 | *p = 0; |
| 199 | symbolP = symbol_find_or_make (name); |
| 200 | *p = c; |
| 201 | |
| 202 | if (strncmp (input_line_pointer, ",\"bss\"", 6) != 0 |
| 203 | && strncmp (input_line_pointer, ",\".bss\"", 7) != 0) |
| 204 | { |
| 205 | as_bad ("bad .reserve segment -- expected BSS segment", input_line_pointer); |
| 206 | return; |
| 207 | } |
| 208 | |
| 209 | if (input_line_pointer[2] == '.') |
| 210 | input_line_pointer += 7; |
| 211 | else |
| 212 | input_line_pointer += 6; |
| 213 | SKIP_WHITESPACE (); |
| 214 | |
| 215 | if (*input_line_pointer == ',') |
| 216 | { |
| 217 | ++input_line_pointer; |
| 218 | |
| 219 | SKIP_WHITESPACE (); |
| 220 | if (*input_line_pointer == '\n') |
| 221 | { |
| 222 | as_bad ("Missing alignment"); |
| 223 | return; |
| 224 | } |
| 225 | |
| 226 | align = get_absolute_expression (); |
| 227 | #ifndef OBJ_ELF |
| 228 | if (align > max_alignment) |
| 229 | { |
| 230 | align = max_alignment; |
| 231 | as_warn ("Alignment too large: %d. assumed.", align); |
| 232 | } |
| 233 | #endif |
| 234 | if (align < 0) |
| 235 | { |
| 236 | align = 0; |
| 237 | as_warn ("Alignment negative. 0 assumed."); |
| 238 | } |
| 239 | |
| 240 | record_alignment (bss_section, align); |
| 241 | |
| 242 | /* convert to a power of 2 alignment */ |
| 243 | for (temp = 0; (align & 1) == 0; align >>= 1, ++temp);; |
| 244 | |
| 245 | if (align != 1) |
| 246 | { |
| 247 | as_bad ("Alignment not a power of 2"); |
| 248 | ignore_rest_of_line (); |
| 249 | return; |
| 250 | } /* not a power of two */ |
| 251 | |
| 252 | align = temp; |
| 253 | } /* if has optional alignment */ |
| 254 | else |
| 255 | align = 0; |
| 256 | |
| 257 | if ((S_GET_SEGMENT (symbolP) == bss_section |
| 258 | || !S_IS_DEFINED (symbolP)) |
| 259 | #ifdef OBJ_AOUT |
| 260 | && S_GET_OTHER (symbolP) == 0 |
| 261 | && S_GET_DESC (symbolP) == 0 |
| 262 | #endif |
| 263 | ) |
| 264 | { |
| 265 | if (! need_pass_2) |
| 266 | { |
| 267 | char *pfrag; |
| 268 | segT current_seg = now_seg; |
| 269 | subsegT current_subseg = now_subseg; |
| 270 | |
| 271 | subseg_set (bss_section, 1); /* switch to bss */ |
| 272 | |
| 273 | if (align) |
| 274 | frag_align (align, 0); /* do alignment */ |
| 275 | |
| 276 | /* detach from old frag */ |
| 277 | if (S_GET_SEGMENT(symbolP) == bss_section) |
| 278 | symbolP->sy_frag->fr_symbol = NULL; |
| 279 | |
| 280 | symbolP->sy_frag = frag_now; |
| 281 | pfrag = frag_var (rs_org, 1, 1, (relax_substateT)0, symbolP, |
| 282 | size, (char *)0); |
| 283 | *pfrag = 0; |
| 284 | |
| 285 | S_SET_SEGMENT (symbolP, bss_section); |
| 286 | |
| 287 | subseg_set (current_seg, current_subseg); |
| 288 | } |
| 289 | } |
| 290 | else |
| 291 | { |
| 292 | as_warn("Ignoring attempt to re-define symbol %s.", name); |
| 293 | } /* if not redefining */ |
| 294 | |
| 295 | demand_empty_rest_of_line (); |
| 296 | } |
| 297 | |
| 298 | static void |
| 299 | s_common (ignore) |
| 300 | int ignore; |
| 301 | { |
| 302 | char *name; |
| 303 | char c; |
| 304 | char *p; |
| 305 | int temp, size; |
| 306 | symbolS *symbolP; |
| 307 | |
| 308 | name = input_line_pointer; |
| 309 | c = get_symbol_end (); |
| 310 | /* just after name is now '\0' */ |
| 311 | p = input_line_pointer; |
| 312 | *p = c; |
| 313 | SKIP_WHITESPACE (); |
| 314 | if (*input_line_pointer != ',') |
| 315 | { |
| 316 | as_bad ("Expected comma after symbol-name"); |
| 317 | ignore_rest_of_line (); |
| 318 | return; |
| 319 | } |
| 320 | input_line_pointer++; /* skip ',' */ |
| 321 | if ((temp = get_absolute_expression ()) < 0) |
| 322 | { |
| 323 | as_bad (".COMMon length (%d.) <0! Ignored.", temp); |
| 324 | ignore_rest_of_line (); |
| 325 | return; |
| 326 | } |
| 327 | size = temp; |
| 328 | *p = 0; |
| 329 | symbolP = symbol_find_or_make (name); |
| 330 | *p = c; |
| 331 | if (S_IS_DEFINED (symbolP)) |
| 332 | { |
| 333 | as_bad ("Ignoring attempt to re-define symbol"); |
| 334 | ignore_rest_of_line (); |
| 335 | return; |
| 336 | } |
| 337 | if (S_GET_VALUE (symbolP) != 0) |
| 338 | { |
| 339 | if (S_GET_VALUE (symbolP) != size) |
| 340 | { |
| 341 | as_warn ("Length of .comm \"%s\" is already %ld. Not changed to %d.", |
| 342 | S_GET_NAME (symbolP), (long) S_GET_VALUE (symbolP), size); |
| 343 | } |
| 344 | } |
| 345 | else |
| 346 | { |
| 347 | #ifndef OBJ_ELF |
| 348 | S_SET_VALUE (symbolP, (valueT) size); |
| 349 | S_SET_EXTERNAL (symbolP); |
| 350 | #endif |
| 351 | } |
| 352 | know (symbolP->sy_frag == &zero_address_frag); |
| 353 | if (*input_line_pointer != ',') |
| 354 | { |
| 355 | as_bad ("Expected comma after common length"); |
| 356 | ignore_rest_of_line (); |
| 357 | return; |
| 358 | } |
| 359 | input_line_pointer++; |
| 360 | SKIP_WHITESPACE (); |
| 361 | if (*input_line_pointer != '"') |
| 362 | { |
| 363 | temp = get_absolute_expression (); |
| 364 | #ifndef OBJ_ELF |
| 365 | if (temp > max_alignment) |
| 366 | { |
| 367 | temp = max_alignment; |
| 368 | as_warn ("Common alignment too large: %d. assumed", temp); |
| 369 | } |
| 370 | #endif |
| 371 | if (temp < 0) |
| 372 | { |
| 373 | temp = 0; |
| 374 | as_warn ("Common alignment negative; 0 assumed"); |
| 375 | } |
| 376 | #ifdef OBJ_ELF |
| 377 | if (symbolP->local) |
| 378 | { |
| 379 | segT old_sec; |
| 380 | int old_subsec; |
| 381 | char *p; |
| 382 | int align; |
| 383 | |
| 384 | allocate_bss: |
| 385 | old_sec = now_seg; |
| 386 | old_subsec = now_subseg; |
| 387 | align = temp; |
| 388 | record_alignment (bss_section, align); |
| 389 | subseg_set (bss_section, 0); |
| 390 | if (align) |
| 391 | frag_align (align, 0); |
| 392 | if (S_GET_SEGMENT (symbolP) == bss_section) |
| 393 | symbolP->sy_frag->fr_symbol = 0; |
| 394 | symbolP->sy_frag = frag_now; |
| 395 | p = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size, |
| 396 | (char *) 0); |
| 397 | *p = 0; |
| 398 | S_SET_SEGMENT (symbolP, bss_section); |
| 399 | S_CLEAR_EXTERNAL (symbolP); |
| 400 | subseg_set (old_sec, old_subsec); |
| 401 | } |
| 402 | else |
| 403 | #endif |
| 404 | { |
| 405 | allocate_common: |
| 406 | S_SET_VALUE (symbolP, (valueT) size); |
| 407 | S_SET_EXTERNAL (symbolP); |
| 408 | /* should be common, but this is how gas does it for now */ |
| 409 | S_SET_SEGMENT (symbolP, &bfd_und_section); |
| 410 | } |
| 411 | } |
| 412 | else |
| 413 | { |
| 414 | input_line_pointer++; |
| 415 | /* @@ Some use the dot, some don't. Can we get some consistency?? */ |
| 416 | if (*input_line_pointer == '.') |
| 417 | input_line_pointer++; |
| 418 | /* @@ Some say data, some say bss. */ |
| 419 | if (strncmp (input_line_pointer, "bss\"", 4) |
| 420 | && strncmp (input_line_pointer, "data\"", 5)) |
| 421 | { |
| 422 | while (*--input_line_pointer != '"') |
| 423 | ; |
| 424 | input_line_pointer--; |
| 425 | goto bad_common_segment; |
| 426 | } |
| 427 | while (*input_line_pointer++ != '"') |
| 428 | ; |
| 429 | goto allocate_common; |
| 430 | } |
| 431 | demand_empty_rest_of_line (); |
| 432 | return; |
| 433 | |
| 434 | { |
| 435 | bad_common_segment: |
| 436 | p = input_line_pointer; |
| 437 | while (*p && *p != '\n') |
| 438 | p++; |
| 439 | c = *p; |
| 440 | *p = '\0'; |
| 441 | as_bad ("bad .common segment %s", input_line_pointer + 1); |
| 442 | *p = c; |
| 443 | input_line_pointer = p; |
| 444 | ignore_rest_of_line (); |
| 445 | return; |
| 446 | } |
| 447 | } |
| 448 | |
| 449 | static void |
| 450 | s_seg (ignore) |
| 451 | int ignore; |
| 452 | { |
| 453 | |
| 454 | if (strncmp (input_line_pointer, "\"text\"", 6) == 0) |
| 455 | { |
| 456 | input_line_pointer += 6; |
| 457 | s_text (0); |
| 458 | return; |
| 459 | } |
| 460 | if (strncmp (input_line_pointer, "\"data\"", 6) == 0) |
| 461 | { |
| 462 | input_line_pointer += 6; |
| 463 | s_data (0); |
| 464 | return; |
| 465 | } |
| 466 | if (strncmp (input_line_pointer, "\"data1\"", 7) == 0) |
| 467 | { |
| 468 | input_line_pointer += 7; |
| 469 | s_data1 (); |
| 470 | return; |
| 471 | } |
| 472 | if (strncmp (input_line_pointer, "\"bss\"", 5) == 0) |
| 473 | { |
| 474 | input_line_pointer += 5; |
| 475 | /* We only support 2 segments -- text and data -- for now, so |
| 476 | things in the "bss segment" will have to go into data for now. |
| 477 | You can still allocate SEG_BSS stuff with .lcomm or .reserve. */ |
| 478 | subseg_set (data_section, 255); /* FIXME-SOMEDAY */ |
| 479 | return; |
| 480 | } |
| 481 | as_bad ("Unknown segment type"); |
| 482 | demand_empty_rest_of_line (); |
| 483 | } |
| 484 | |
| 485 | static void |
| 486 | s_data1 () |
| 487 | { |
| 488 | subseg_set (data_section, 1); |
| 489 | demand_empty_rest_of_line (); |
| 490 | } |
| 491 | |
| 492 | static void |
| 493 | s_proc (ignore) |
| 494 | int ignore; |
| 495 | { |
| 496 | while (!is_end_of_line[(unsigned char) *input_line_pointer]) |
| 497 | { |
| 498 | ++input_line_pointer; |
| 499 | } |
| 500 | ++input_line_pointer; |
| 501 | } |
| 502 | |
| 503 | /* start-sanitize-v9 */ |
| 504 | #ifndef NO_V9 |
| 505 | |
| 506 | struct priv_reg_entry |
| 507 | { |
| 508 | char *name; |
| 509 | int regnum; |
| 510 | }; |
| 511 | |
| 512 | struct priv_reg_entry priv_reg_table[] = |
| 513 | { |
| 514 | {"tpc", 0}, |
| 515 | {"tnpc", 1}, |
| 516 | {"tstate", 2}, |
| 517 | {"tt", 3}, |
| 518 | {"tick", 4}, |
| 519 | {"tba", 5}, |
| 520 | {"pstate", 6}, |
| 521 | {"tl", 7}, |
| 522 | {"pil", 8}, |
| 523 | {"cwp", 9}, |
| 524 | {"cansave", 10}, |
| 525 | {"canrestore", 11}, |
| 526 | {"cleanwin", 12}, |
| 527 | {"otherwin", 13}, |
| 528 | {"wstate", 14}, |
| 529 | {"fq", 15}, |
| 530 | {"ver", 31}, |
| 531 | {"", -1}, /* end marker */ |
| 532 | }; |
| 533 | |
| 534 | struct membar_masks |
| 535 | { |
| 536 | char *name; |
| 537 | unsigned int len; |
| 538 | unsigned int mask; |
| 539 | }; |
| 540 | |
| 541 | #define MEMBAR_MASKS_SIZE 7 |
| 542 | |
| 543 | struct membar_masks membar_masks[MEMBAR_MASKS_SIZE] = |
| 544 | { |
| 545 | {"Sync", 4, 0x40}, |
| 546 | {"MemIssue", 8, 0x20}, |
| 547 | {"Lookaside", 9, 0x10}, |
| 548 | {"StoreStore", 10, 0x08}, |
| 549 | {"LoadStore", 9, 0x04}, |
| 550 | {"StoreLoad", 9, 0x02}, |
| 551 | {"LoadLoad", 8, 0x01}, |
| 552 | }; |
| 553 | |
| 554 | static int |
| 555 | cmp_reg_entry (p, q) |
| 556 | struct priv_reg_entry *p, *q; |
| 557 | { |
| 558 | return strcmp (q->name, p->name); |
| 559 | } |
| 560 | |
| 561 | #endif |
| 562 | /* end-sanitize-v9 */ |
| 563 | |
| 564 | /* This function is called once, at assembler startup time. It should |
| 565 | set up all the tables, etc. that the MD part of the assembler will need. */ |
| 566 | void |
| 567 | md_begin () |
| 568 | { |
| 569 | register const char *retval = NULL; |
| 570 | int lose = 0; |
| 571 | register unsigned int i = 0; |
| 572 | |
| 573 | op_hash = hash_new (); |
| 574 | |
| 575 | while (i < NUMOPCODES) |
| 576 | { |
| 577 | const char *name = sparc_opcodes[i].name; |
| 578 | retval = hash_insert (op_hash, name, &sparc_opcodes[i]); |
| 579 | if (retval != NULL) |
| 580 | { |
| 581 | fprintf (stderr, "internal error: can't hash `%s': %s\n", |
| 582 | sparc_opcodes[i].name, retval); |
| 583 | lose = 1; |
| 584 | } |
| 585 | do |
| 586 | { |
| 587 | if (sparc_opcodes[i].match & sparc_opcodes[i].lose) |
| 588 | { |
| 589 | fprintf (stderr, "internal error: losing opcode: `%s' \"%s\"\n", |
| 590 | sparc_opcodes[i].name, sparc_opcodes[i].args); |
| 591 | lose = 1; |
| 592 | } |
| 593 | ++i; |
| 594 | } |
| 595 | while (i < NUMOPCODES |
| 596 | && !strcmp (sparc_opcodes[i].name, name)); |
| 597 | } |
| 598 | |
| 599 | if (lose) |
| 600 | as_fatal ("Broken assembler. No assembly attempted."); |
| 601 | |
| 602 | for (i = '0'; i < '8'; ++i) |
| 603 | octal[i] = 1; |
| 604 | for (i = '0'; i <= '9'; ++i) |
| 605 | toHex[i] = i - '0'; |
| 606 | for (i = 'a'; i <= 'f'; ++i) |
| 607 | toHex[i] = i + 10 - 'a'; |
| 608 | for (i = 'A'; i <= 'F'; ++i) |
| 609 | toHex[i] = i + 10 - 'A'; |
| 610 | |
| 611 | /* start-sanitize-v9 */ |
| 612 | #ifndef NO_V9 |
| 613 | #ifdef sparcv9 |
| 614 | current_architecture = v9; |
| 615 | #endif |
| 616 | |
| 617 | qsort (priv_reg_table, sizeof (priv_reg_table) / sizeof (priv_reg_table[0]), |
| 618 | sizeof (priv_reg_table[0]), cmp_reg_entry); |
| 619 | #endif |
| 620 | /* end-sanitize-v9 */ |
| 621 | |
| 622 | target_big_endian = 1; |
| 623 | } |
| 624 | |
| 625 | void |
| 626 | md_assemble (str) |
| 627 | char *str; |
| 628 | { |
| 629 | char *toP; |
| 630 | int rsd; |
| 631 | |
| 632 | know (str); |
| 633 | sparc_ip (str); |
| 634 | |
| 635 | /* See if "set" operand is absolute and small; skip sethi if so. */ |
| 636 | if (special_case == SPECIAL_CASE_SET |
| 637 | && the_insn.exp.X_op == O_constant) |
| 638 | { |
| 639 | if (the_insn.exp.X_add_number >= -(1 << 12) |
| 640 | && the_insn.exp.X_add_number < (1 << 12)) |
| 641 | { |
| 642 | the_insn.opcode = 0x80102000 /* or %g0,imm,... */ |
| 643 | | (the_insn.opcode & 0x3E000000) /* dest reg */ |
| 644 | | (the_insn.exp.X_add_number & 0x1FFF); /* imm */ |
| 645 | special_case = 0; /* No longer special */ |
| 646 | the_insn.reloc = BFD_RELOC_NONE; /* No longer relocated */ |
| 647 | } |
| 648 | } |
| 649 | |
| 650 | toP = frag_more (4); |
| 651 | /* put out the opcode */ |
| 652 | md_number_to_chars (toP, (valueT) the_insn.opcode, 4); |
| 653 | |
| 654 | /* put out the symbol-dependent stuff */ |
| 655 | if (the_insn.reloc != BFD_RELOC_NONE) |
| 656 | { |
| 657 | fix_new_exp (frag_now, /* which frag */ |
| 658 | (toP - frag_now->fr_literal), /* where */ |
| 659 | 4, /* size */ |
| 660 | &the_insn.exp, |
| 661 | the_insn.pcrel, |
| 662 | the_insn.reloc); |
| 663 | } |
| 664 | |
| 665 | switch (special_case) |
| 666 | { |
| 667 | case SPECIAL_CASE_SET: |
| 668 | special_case = 0; |
| 669 | assert (the_insn.reloc == BFD_RELOC_HI22); |
| 670 | /* See if "set" operand has no low-order bits; skip OR if so. */ |
| 671 | if (the_insn.exp.X_op == O_constant |
| 672 | && ((the_insn.exp.X_add_number & 0x3FF) == 0)) |
| 673 | return; |
| 674 | toP = frag_more (4); |
| 675 | rsd = (the_insn.opcode >> 25) & 0x1f; |
| 676 | the_insn.opcode = 0x80102000 | (rsd << 25) | (rsd << 14); |
| 677 | md_number_to_chars (toP, (valueT) the_insn.opcode, 4); |
| 678 | fix_new_exp (frag_now, /* which frag */ |
| 679 | (toP - frag_now->fr_literal), /* where */ |
| 680 | 4, /* size */ |
| 681 | &the_insn.exp, |
| 682 | the_insn.pcrel, |
| 683 | BFD_RELOC_LO10); |
| 684 | return; |
| 685 | |
| 686 | case SPECIAL_CASE_FDIV: |
| 687 | /* According to information leaked from Sun, the "fdiv" instructions |
| 688 | on early SPARC machines would produce incorrect results sometimes. |
| 689 | The workaround is to add an fmovs of the destination register to |
| 690 | itself just after the instruction. This was true on machines |
| 691 | with Weitek 1165 float chips, such as the Sun-4/260 and /280. */ |
| 692 | special_case = 0; |
| 693 | assert (the_insn.reloc == BFD_RELOC_NONE); |
| 694 | toP = frag_more (4); |
| 695 | rsd = (the_insn.opcode >> 25) & 0x1f; |
| 696 | the_insn.opcode = 0x81A00020 | (rsd << 25) | rsd; /* fmovs dest,dest */ |
| 697 | md_number_to_chars (toP, (valueT) the_insn.opcode, 4); |
| 698 | return; |
| 699 | |
| 700 | case 0: |
| 701 | return; |
| 702 | |
| 703 | default: |
| 704 | as_fatal ("failed sanity check."); |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | static void |
| 709 | sparc_ip (str) |
| 710 | char *str; |
| 711 | { |
| 712 | char *error_message = ""; |
| 713 | char *s; |
| 714 | const char *args; |
| 715 | char c; |
| 716 | struct sparc_opcode *insn; |
| 717 | char *argsStart; |
| 718 | unsigned long opcode; |
| 719 | unsigned int mask = 0; |
| 720 | int match = 0; |
| 721 | int comma = 0; |
| 722 | long immediate_max = 0; |
| 723 | |
| 724 | for (s = str; islower (*s) || (*s >= '0' && *s <= '3'); ++s) |
| 725 | ; |
| 726 | switch (*s) |
| 727 | { |
| 728 | |
| 729 | case '\0': |
| 730 | break; |
| 731 | |
| 732 | case ',': |
| 733 | comma = 1; |
| 734 | |
| 735 | /*FALLTHROUGH */ |
| 736 | |
| 737 | case ' ': |
| 738 | *s++ = '\0'; |
| 739 | break; |
| 740 | |
| 741 | default: |
| 742 | as_bad ("Unknown opcode: `%s'", str); |
| 743 | exit (1); |
| 744 | } |
| 745 | if ((insn = (struct sparc_opcode *) hash_find (op_hash, str)) == NULL) |
| 746 | { |
| 747 | as_bad ("Unknown opcode: `%s'", str); |
| 748 | return; |
| 749 | } |
| 750 | if (comma) |
| 751 | { |
| 752 | *--s = ','; |
| 753 | } |
| 754 | argsStart = s; |
| 755 | for (;;) |
| 756 | { |
| 757 | opcode = insn->match; |
| 758 | memset (&the_insn, '\0', sizeof (the_insn)); |
| 759 | the_insn.reloc = BFD_RELOC_NONE; |
| 760 | |
| 761 | /* |
| 762 | * Build the opcode, checking as we go to make |
| 763 | * sure that the operands match |
| 764 | */ |
| 765 | for (args = insn->args;; ++args) |
| 766 | { |
| 767 | switch (*args) |
| 768 | { |
| 769 | |
| 770 | /* start-sanitize-v9 */ |
| 771 | #ifndef NO_V9 |
| 772 | case 'K': |
| 773 | { |
| 774 | int kmask = 0; |
| 775 | int i; |
| 776 | |
| 777 | /* Parse a series of masks. */ |
| 778 | if (*s == '#') |
| 779 | { |
| 780 | while (*s == '#') |
| 781 | { |
| 782 | ++s; |
| 783 | for (i = 0; i < MEMBAR_MASKS_SIZE; i++) |
| 784 | if (!strncmp (s, membar_masks[i].name, |
| 785 | membar_masks[i].len)) |
| 786 | break; |
| 787 | if (i < MEMBAR_MASKS_SIZE) |
| 788 | { |
| 789 | kmask |= membar_masks[i].mask; |
| 790 | s += membar_masks[i].len; |
| 791 | } |
| 792 | else |
| 793 | { |
| 794 | error_message = ": invalid membar mask name"; |
| 795 | goto error; |
| 796 | } |
| 797 | if (*s == '|') |
| 798 | ++s; |
| 799 | } |
| 800 | } |
| 801 | else |
| 802 | { |
| 803 | expressionS exp; |
| 804 | char *hold; |
| 805 | char *send; |
| 806 | |
| 807 | hold = input_line_pointer; |
| 808 | input_line_pointer = s; |
| 809 | expression (&exp); |
| 810 | send = input_line_pointer; |
| 811 | input_line_pointer = hold; |
| 812 | |
| 813 | kmask = exp.X_add_number; |
| 814 | if (exp.X_op != O_constant |
| 815 | || kmask < 0 |
| 816 | || kmask > 127) |
| 817 | { |
| 818 | error_message = ": invalid membar mask number"; |
| 819 | goto error; |
| 820 | } |
| 821 | |
| 822 | s = send; |
| 823 | } |
| 824 | |
| 825 | opcode |= SIMM13 (kmask); |
| 826 | continue; |
| 827 | } |
| 828 | |
| 829 | case '*': |
| 830 | { |
| 831 | int prefetch_fcn = 0; |
| 832 | |
| 833 | /* Parse a prefetch function. */ |
| 834 | if (*s == '#') |
| 835 | { |
| 836 | s += 1; |
| 837 | if (!strncmp (s, "n_reads", 7)) |
| 838 | prefetch_fcn = 0, s += 7; |
| 839 | else if (!strncmp (s, "one_read", 8)) |
| 840 | prefetch_fcn = 1, s += 8; |
| 841 | else if (!strncmp (s, "n_writes", 8)) |
| 842 | prefetch_fcn = 2, s += 8; |
| 843 | else if (!strncmp (s, "one_write", 9)) |
| 844 | prefetch_fcn = 3, s += 9; |
| 845 | else if (!strncmp (s, "page", 4)) |
| 846 | prefetch_fcn = 4, s += 4; |
| 847 | else |
| 848 | { |
| 849 | error_message = ": invalid prefetch function name"; |
| 850 | goto error; |
| 851 | } |
| 852 | } |
| 853 | else if (isdigit (*s)) |
| 854 | { |
| 855 | while (isdigit (*s)) |
| 856 | { |
| 857 | prefetch_fcn = prefetch_fcn * 10 + *s - '0'; |
| 858 | ++s; |
| 859 | } |
| 860 | |
| 861 | if (prefetch_fcn < 0 || prefetch_fcn > 31) |
| 862 | { |
| 863 | error_message = ": invalid prefetch function number"; |
| 864 | goto error; |
| 865 | } |
| 866 | } |
| 867 | else |
| 868 | { |
| 869 | error_message = ": unrecognizable prefetch function"; |
| 870 | goto error; |
| 871 | } |
| 872 | opcode |= RD (prefetch_fcn); |
| 873 | continue; |
| 874 | } |
| 875 | |
| 876 | case '!': |
| 877 | case '?': |
| 878 | /* Parse a privileged register. */ |
| 879 | if (*s == '%') |
| 880 | { |
| 881 | struct priv_reg_entry *p = priv_reg_table; |
| 882 | unsigned int len = 9999999; /* init to make gcc happy */ |
| 883 | |
| 884 | s += 1; |
| 885 | while (p->name[0] > s[0]) |
| 886 | p++; |
| 887 | while (p->name[0] == s[0]) |
| 888 | { |
| 889 | len = strlen (p->name); |
| 890 | if (strncmp (p->name, s, len) == 0) |
| 891 | break; |
| 892 | p++; |
| 893 | } |
| 894 | if (p->name[0] != s[0]) |
| 895 | { |
| 896 | error_message = ": unrecognizable privileged register"; |
| 897 | goto error; |
| 898 | } |
| 899 | if (*args == '?') |
| 900 | opcode |= (p->regnum << 14); |
| 901 | else |
| 902 | opcode |= (p->regnum << 25); |
| 903 | s += len; |
| 904 | continue; |
| 905 | } |
| 906 | else |
| 907 | { |
| 908 | error_message = ": unrecognizable privileged register"; |
| 909 | goto error; |
| 910 | } |
| 911 | #endif |
| 912 | /* end-sanitize-v9 */ |
| 913 | |
| 914 | case 'M': |
| 915 | case 'm': |
| 916 | if (strncmp (s, "%asr", 4) == 0) |
| 917 | { |
| 918 | s += 4; |
| 919 | |
| 920 | if (isdigit (*s)) |
| 921 | { |
| 922 | long num = 0; |
| 923 | |
| 924 | while (isdigit (*s)) |
| 925 | { |
| 926 | num = num * 10 + *s - '0'; |
| 927 | ++s; |
| 928 | } |
| 929 | |
| 930 | if (num < 16 || 31 < num) |
| 931 | { |
| 932 | error_message = ": asr number must be between 15 and 31"; |
| 933 | goto error; |
| 934 | } /* out of range */ |
| 935 | |
| 936 | opcode |= (*args == 'M' ? RS1 (num) : RD (num)); |
| 937 | continue; |
| 938 | } |
| 939 | else |
| 940 | { |
| 941 | error_message = ": expecting %asrN"; |
| 942 | goto error; |
| 943 | } /* if %asr followed by a number. */ |
| 944 | |
| 945 | } /* if %asr */ |
| 946 | break; |
| 947 | |
| 948 | /* start-sanitize-v9 */ |
| 949 | #ifndef NO_V9 |
| 950 | case 'I': |
| 951 | the_insn.reloc = BFD_RELOC_SPARC_11; |
| 952 | immediate_max = 0x03FF; |
| 953 | goto immediate; |
| 954 | |
| 955 | case 'j': |
| 956 | the_insn.reloc = BFD_RELOC_SPARC_10; |
| 957 | immediate_max = 0x01FF; |
| 958 | goto immediate; |
| 959 | |
| 960 | case 'k': |
| 961 | the_insn.reloc = /* RELOC_WDISP2_14 */ BFD_RELOC_SPARC_WDISP16; |
| 962 | the_insn.pcrel = 1; |
| 963 | goto immediate; |
| 964 | |
| 965 | case 'G': |
| 966 | the_insn.reloc = BFD_RELOC_SPARC_WDISP19; |
| 967 | the_insn.pcrel = 1; |
| 968 | goto immediate; |
| 969 | |
| 970 | case 'N': |
| 971 | if (*s == 'p' && s[1] == 'n') |
| 972 | { |
| 973 | s += 2; |
| 974 | continue; |
| 975 | } |
| 976 | break; |
| 977 | |
| 978 | case 'T': |
| 979 | if (*s == 'p' && s[1] == 't') |
| 980 | { |
| 981 | s += 2; |
| 982 | continue; |
| 983 | } |
| 984 | break; |
| 985 | |
| 986 | case 'z': |
| 987 | if (*s == ' ') |
| 988 | { |
| 989 | ++s; |
| 990 | } |
| 991 | if (strncmp (s, "%icc", 4) == 0) |
| 992 | { |
| 993 | s += 4; |
| 994 | continue; |
| 995 | } |
| 996 | break; |
| 997 | |
| 998 | case 'Z': |
| 999 | if (*s == ' ') |
| 1000 | { |
| 1001 | ++s; |
| 1002 | } |
| 1003 | if (strncmp (s, "%xcc", 4) == 0) |
| 1004 | { |
| 1005 | s += 4; |
| 1006 | continue; |
| 1007 | } |
| 1008 | break; |
| 1009 | |
| 1010 | case '6': |
| 1011 | if (*s == ' ') |
| 1012 | { |
| 1013 | ++s; |
| 1014 | } |
| 1015 | if (strncmp (s, "%fcc0", 5) == 0) |
| 1016 | { |
| 1017 | s += 5; |
| 1018 | continue; |
| 1019 | } |
| 1020 | break; |
| 1021 | |
| 1022 | case '7': |
| 1023 | if (*s == ' ') |
| 1024 | { |
| 1025 | ++s; |
| 1026 | } |
| 1027 | if (strncmp (s, "%fcc1", 5) == 0) |
| 1028 | { |
| 1029 | s += 5; |
| 1030 | continue; |
| 1031 | } |
| 1032 | break; |
| 1033 | |
| 1034 | case '8': |
| 1035 | if (*s == ' ') |
| 1036 | { |
| 1037 | ++s; |
| 1038 | } |
| 1039 | if (strncmp (s, "%fcc2", 5) == 0) |
| 1040 | { |
| 1041 | s += 5; |
| 1042 | continue; |
| 1043 | } |
| 1044 | break; |
| 1045 | |
| 1046 | case '9': |
| 1047 | if (*s == ' ') |
| 1048 | { |
| 1049 | ++s; |
| 1050 | } |
| 1051 | if (strncmp (s, "%fcc3", 5) == 0) |
| 1052 | { |
| 1053 | s += 5; |
| 1054 | continue; |
| 1055 | } |
| 1056 | break; |
| 1057 | |
| 1058 | case 'P': |
| 1059 | if (strncmp (s, "%pc", 3) == 0) |
| 1060 | { |
| 1061 | s += 3; |
| 1062 | continue; |
| 1063 | } |
| 1064 | break; |
| 1065 | |
| 1066 | case 'W': |
| 1067 | if (strncmp (s, "%tick", 5) == 0) |
| 1068 | { |
| 1069 | s += 5; |
| 1070 | continue; |
| 1071 | } |
| 1072 | break; |
| 1073 | #endif /* NO_V9 */ |
| 1074 | /* end-sanitize-v9 */ |
| 1075 | |
| 1076 | case '\0': /* end of args */ |
| 1077 | if (*s == '\0') |
| 1078 | { |
| 1079 | match = 1; |
| 1080 | } |
| 1081 | break; |
| 1082 | |
| 1083 | case '+': |
| 1084 | if (*s == '+') |
| 1085 | { |
| 1086 | ++s; |
| 1087 | continue; |
| 1088 | } |
| 1089 | if (*s == '-') |
| 1090 | { |
| 1091 | continue; |
| 1092 | } |
| 1093 | break; |
| 1094 | |
| 1095 | case '[': /* these must match exactly */ |
| 1096 | case ']': |
| 1097 | case ',': |
| 1098 | case ' ': |
| 1099 | if (*s++ == *args) |
| 1100 | continue; |
| 1101 | break; |
| 1102 | |
| 1103 | case '#': /* must be at least one digit */ |
| 1104 | if (isdigit (*s++)) |
| 1105 | { |
| 1106 | while (isdigit (*s)) |
| 1107 | { |
| 1108 | ++s; |
| 1109 | } |
| 1110 | continue; |
| 1111 | } |
| 1112 | break; |
| 1113 | |
| 1114 | case 'C': /* coprocessor state register */ |
| 1115 | if (strncmp (s, "%csr", 4) == 0) |
| 1116 | { |
| 1117 | s += 4; |
| 1118 | continue; |
| 1119 | } |
| 1120 | break; |
| 1121 | |
| 1122 | case 'b': /* next operand is a coprocessor register */ |
| 1123 | case 'c': |
| 1124 | case 'D': |
| 1125 | if (*s++ == '%' && *s++ == 'c' && isdigit (*s)) |
| 1126 | { |
| 1127 | mask = *s++; |
| 1128 | if (isdigit (*s)) |
| 1129 | { |
| 1130 | mask = 10 * (mask - '0') + (*s++ - '0'); |
| 1131 | if (mask >= 32) |
| 1132 | { |
| 1133 | break; |
| 1134 | } |
| 1135 | } |
| 1136 | else |
| 1137 | { |
| 1138 | mask -= '0'; |
| 1139 | } |
| 1140 | switch (*args) |
| 1141 | { |
| 1142 | |
| 1143 | case 'b': |
| 1144 | opcode |= mask << 14; |
| 1145 | continue; |
| 1146 | |
| 1147 | case 'c': |
| 1148 | opcode |= mask; |
| 1149 | continue; |
| 1150 | |
| 1151 | case 'D': |
| 1152 | opcode |= mask << 25; |
| 1153 | continue; |
| 1154 | } |
| 1155 | } |
| 1156 | break; |
| 1157 | |
| 1158 | case 'r': /* next operand must be a register */ |
| 1159 | case '1': |
| 1160 | case '2': |
| 1161 | case 'd': |
| 1162 | if (*s++ == '%') |
| 1163 | { |
| 1164 | switch (c = *s++) |
| 1165 | { |
| 1166 | |
| 1167 | case 'f': /* frame pointer */ |
| 1168 | if (*s++ == 'p') |
| 1169 | { |
| 1170 | mask = 0x1e; |
| 1171 | break; |
| 1172 | } |
| 1173 | goto error; |
| 1174 | |
| 1175 | case 'g': /* global register */ |
| 1176 | if (isoctal (c = *s++)) |
| 1177 | { |
| 1178 | mask = c - '0'; |
| 1179 | break; |
| 1180 | } |
| 1181 | goto error; |
| 1182 | |
| 1183 | case 'i': /* in register */ |
| 1184 | if (isoctal (c = *s++)) |
| 1185 | { |
| 1186 | mask = c - '0' + 24; |
| 1187 | break; |
| 1188 | } |
| 1189 | goto error; |
| 1190 | |
| 1191 | case 'l': /* local register */ |
| 1192 | if (isoctal (c = *s++)) |
| 1193 | { |
| 1194 | mask = (c - '0' + 16); |
| 1195 | break; |
| 1196 | } |
| 1197 | goto error; |
| 1198 | |
| 1199 | case 'o': /* out register */ |
| 1200 | if (isoctal (c = *s++)) |
| 1201 | { |
| 1202 | mask = (c - '0' + 8); |
| 1203 | break; |
| 1204 | } |
| 1205 | goto error; |
| 1206 | |
| 1207 | case 's': /* stack pointer */ |
| 1208 | if (*s++ == 'p') |
| 1209 | { |
| 1210 | mask = 0xe; |
| 1211 | break; |
| 1212 | } |
| 1213 | goto error; |
| 1214 | |
| 1215 | case 'r': /* any register */ |
| 1216 | if (!isdigit (c = *s++)) |
| 1217 | { |
| 1218 | goto error; |
| 1219 | } |
| 1220 | /* FALLTHROUGH */ |
| 1221 | case '0': |
| 1222 | case '1': |
| 1223 | case '2': |
| 1224 | case '3': |
| 1225 | case '4': |
| 1226 | case '5': |
| 1227 | case '6': |
| 1228 | case '7': |
| 1229 | case '8': |
| 1230 | case '9': |
| 1231 | if (isdigit (*s)) |
| 1232 | { |
| 1233 | if ((c = 10 * (c - '0') + (*s++ - '0')) >= 32) |
| 1234 | { |
| 1235 | goto error; |
| 1236 | } |
| 1237 | } |
| 1238 | else |
| 1239 | { |
| 1240 | c -= '0'; |
| 1241 | } |
| 1242 | mask = c; |
| 1243 | break; |
| 1244 | |
| 1245 | default: |
| 1246 | goto error; |
| 1247 | } |
| 1248 | /* |
| 1249 | * Got the register, now figure out where |
| 1250 | * it goes in the opcode. |
| 1251 | */ |
| 1252 | switch (*args) |
| 1253 | { |
| 1254 | |
| 1255 | case '1': |
| 1256 | opcode |= mask << 14; |
| 1257 | continue; |
| 1258 | |
| 1259 | case '2': |
| 1260 | opcode |= mask; |
| 1261 | continue; |
| 1262 | |
| 1263 | case 'd': |
| 1264 | opcode |= mask << 25; |
| 1265 | continue; |
| 1266 | |
| 1267 | case 'r': |
| 1268 | opcode |= (mask << 25) | (mask << 14); |
| 1269 | continue; |
| 1270 | } |
| 1271 | } |
| 1272 | break; |
| 1273 | |
| 1274 | case 'e': /* next operand is a floating point register */ |
| 1275 | case 'v': |
| 1276 | case 'V': |
| 1277 | |
| 1278 | case 'f': |
| 1279 | case 'B': |
| 1280 | case 'R': |
| 1281 | |
| 1282 | case 'g': |
| 1283 | case 'H': |
| 1284 | case 'J': |
| 1285 | { |
| 1286 | char format; |
| 1287 | |
| 1288 | if (*s++ == '%' |
| 1289 | && ((format = *s) == 'f') |
| 1290 | && isdigit (*++s)) |
| 1291 | { |
| 1292 | for (mask = 0; isdigit (*s); ++s) |
| 1293 | { |
| 1294 | mask = 10 * mask + (*s - '0'); |
| 1295 | } /* read the number */ |
| 1296 | |
| 1297 | if ((*args == 'v' |
| 1298 | || *args == 'B' |
| 1299 | || *args == 'H') |
| 1300 | && (mask & 1)) |
| 1301 | { |
| 1302 | break; |
| 1303 | } /* register must be even numbered */ |
| 1304 | |
| 1305 | if ((*args == 'V' |
| 1306 | || *args == 'R' |
| 1307 | || *args == 'J') |
| 1308 | && (mask & 3)) |
| 1309 | { |
| 1310 | break; |
| 1311 | } /* register must be multiple of 4 */ |
| 1312 | |
| 1313 | /* start-sanitize-v9 */ |
| 1314 | #ifndef NO_V9 |
| 1315 | if (mask >= 64) |
| 1316 | { |
| 1317 | error_message = ": There are only 64 f registers; [0-63]"; |
| 1318 | goto error; |
| 1319 | } /* on error */ |
| 1320 | if (mask >= 32) |
| 1321 | { |
| 1322 | mask -= 31; |
| 1323 | } /* wrap high bit */ |
| 1324 | #else |
| 1325 | /* end-sanitize-v9 */ |
| 1326 | if (mask >= 32) |
| 1327 | { |
| 1328 | error_message = ": There are only 32 f registers; [0-31]"; |
| 1329 | goto error; |
| 1330 | } /* on error */ |
| 1331 | /* start-sanitize-v9 */ |
| 1332 | #endif |
| 1333 | /* end-sanitize-v9 */ |
| 1334 | } |
| 1335 | else |
| 1336 | { |
| 1337 | break; |
| 1338 | } /* if not an 'f' register. */ |
| 1339 | |
| 1340 | switch (*args) |
| 1341 | { |
| 1342 | |
| 1343 | case 'v': |
| 1344 | case 'V': |
| 1345 | case 'e': |
| 1346 | opcode |= RS1 (mask); |
| 1347 | continue; |
| 1348 | |
| 1349 | |
| 1350 | case 'f': |
| 1351 | case 'B': |
| 1352 | case 'R': |
| 1353 | opcode |= RS2 (mask); |
| 1354 | continue; |
| 1355 | |
| 1356 | case 'g': |
| 1357 | case 'H': |
| 1358 | case 'J': |
| 1359 | opcode |= RD (mask); |
| 1360 | continue; |
| 1361 | } /* pack it in. */ |
| 1362 | |
| 1363 | know (0); |
| 1364 | break; |
| 1365 | } /* float arg */ |
| 1366 | |
| 1367 | case 'F': |
| 1368 | if (strncmp (s, "%fsr", 4) == 0) |
| 1369 | { |
| 1370 | s += 4; |
| 1371 | continue; |
| 1372 | } |
| 1373 | break; |
| 1374 | |
| 1375 | case 'h': /* high 22 bits */ |
| 1376 | the_insn.reloc = BFD_RELOC_HI22; |
| 1377 | goto immediate; |
| 1378 | |
| 1379 | case 'l': /* 22 bit PC relative immediate */ |
| 1380 | the_insn.reloc = BFD_RELOC_SPARC_WDISP22; |
| 1381 | the_insn.pcrel = 1; |
| 1382 | goto immediate; |
| 1383 | |
| 1384 | case 'L': /* 30 bit immediate */ |
| 1385 | the_insn.reloc = BFD_RELOC_32_PCREL_S2; |
| 1386 | the_insn.pcrel = 1; |
| 1387 | goto immediate; |
| 1388 | |
| 1389 | case 'n': /* 22 bit immediate */ |
| 1390 | the_insn.reloc = BFD_RELOC_SPARC22; |
| 1391 | goto immediate; |
| 1392 | |
| 1393 | case 'i': /* 13 bit immediate */ |
| 1394 | the_insn.reloc = BFD_RELOC_SPARC13; |
| 1395 | immediate_max = 0x0FFF; |
| 1396 | |
| 1397 | /*FALLTHROUGH */ |
| 1398 | |
| 1399 | immediate: |
| 1400 | if (*s == ' ') |
| 1401 | s++; |
| 1402 | if (*s == '%') |
| 1403 | { |
| 1404 | if ((c = s[1]) == 'h' && s[2] == 'i') |
| 1405 | { |
| 1406 | the_insn.reloc = BFD_RELOC_HI22; |
| 1407 | s += 3; |
| 1408 | } |
| 1409 | else if (c == 'l' && s[2] == 'o') |
| 1410 | { |
| 1411 | the_insn.reloc = BFD_RELOC_LO10; |
| 1412 | s += 3; |
| 1413 | } |
| 1414 | /* start-sanitize-v9 */ |
| 1415 | #ifndef NO_V9 |
| 1416 | else if (c == 'u' |
| 1417 | && s[2] == 'h' |
| 1418 | && s[3] == 'i') |
| 1419 | { |
| 1420 | the_insn.reloc = BFD_RELOC_SPARC_HH22; |
| 1421 | s += 4; |
| 1422 | } |
| 1423 | else if (c == 'u' |
| 1424 | && s[2] == 'l' |
| 1425 | && s[3] == 'o') |
| 1426 | { |
| 1427 | the_insn.reloc = BFD_RELOC_SPARC_HM10; |
| 1428 | s += 4; |
| 1429 | } |
| 1430 | #endif /* NO_V9 */ |
| 1431 | /* end-sanitize-v9 */ |
| 1432 | else |
| 1433 | break; |
| 1434 | } |
| 1435 | /* Note that if the getExpression() fails, we will still |
| 1436 | have created U entries in the symbol table for the |
| 1437 | 'symbols' in the input string. Try not to create U |
| 1438 | symbols for registers, etc. */ |
| 1439 | { |
| 1440 | /* This stuff checks to see if the expression ends in |
| 1441 | +%reg. If it does, it removes the register from |
| 1442 | the expression, and re-sets 's' to point to the |
| 1443 | right place. */ |
| 1444 | |
| 1445 | char *s1; |
| 1446 | |
| 1447 | for (s1 = s; *s1 && *s1 != ',' && *s1 != ']'; s1++);; |
| 1448 | |
| 1449 | if (s1 != s && isdigit (s1[-1])) |
| 1450 | { |
| 1451 | if (s1[-2] == '%' && s1[-3] == '+') |
| 1452 | { |
| 1453 | s1 -= 3; |
| 1454 | *s1 = '\0'; |
| 1455 | (void) getExpression (s); |
| 1456 | *s1 = '+'; |
| 1457 | s = s1; |
| 1458 | continue; |
| 1459 | } |
| 1460 | else if (strchr ("goli0123456789", s1[-2]) && s1[-3] == '%' && s1[-4] == '+') |
| 1461 | { |
| 1462 | s1 -= 4; |
| 1463 | *s1 = '\0'; |
| 1464 | (void) getExpression (s); |
| 1465 | *s1 = '+'; |
| 1466 | s = s1; |
| 1467 | continue; |
| 1468 | } |
| 1469 | } |
| 1470 | } |
| 1471 | (void) getExpression (s); |
| 1472 | s = expr_end; |
| 1473 | |
| 1474 | if (the_insn.exp.X_op == O_constant |
| 1475 | && the_insn.exp.X_add_symbol == 0 |
| 1476 | && the_insn.exp.X_op_symbol == 0) |
| 1477 | { |
| 1478 | /* start-sanitize-v9 */ |
| 1479 | #ifndef NO_V9 |
| 1480 | /* Handle %uhi/%ulo by moving the upper word to the lower |
| 1481 | one and pretending it's %hi/%lo. We also need to watch |
| 1482 | for %hi/%lo: the top word needs to be zeroed otherwise |
| 1483 | fixup_segment will complain the value is too big. */ |
| 1484 | switch (the_insn.reloc) |
| 1485 | { |
| 1486 | case BFD_RELOC_SPARC_HH22: |
| 1487 | the_insn.reloc = BFD_RELOC_HI22; |
| 1488 | the_insn.exp.X_add_number >>= 32; |
| 1489 | break; |
| 1490 | case BFD_RELOC_SPARC_HM10: |
| 1491 | the_insn.reloc = BFD_RELOC_LO10; |
| 1492 | the_insn.exp.X_add_number >>= 32; |
| 1493 | break; |
| 1494 | default: |
| 1495 | break; |
| 1496 | case BFD_RELOC_HI22: |
| 1497 | case BFD_RELOC_LO10: |
| 1498 | the_insn.exp.X_add_number &= 0xffffffff; |
| 1499 | break; |
| 1500 | } |
| 1501 | #endif |
| 1502 | /* end-sanitize-v9 */ |
| 1503 | /* For pc-relative call instructions, we reject |
| 1504 | constants to get better code. */ |
| 1505 | if (the_insn.pcrel |
| 1506 | && the_insn.reloc == BFD_RELOC_32_PCREL_S2 |
| 1507 | && in_signed_range (the_insn.exp.X_add_number, 0x3fff) |
| 1508 | ) |
| 1509 | { |
| 1510 | error_message = ": PC-relative operand can't be a constant"; |
| 1511 | goto error; |
| 1512 | } |
| 1513 | /* Check for invalid constant values. Don't warn if |
| 1514 | constant was inside %hi or %lo, since these |
| 1515 | truncate the constant to fit. */ |
| 1516 | if (immediate_max != 0 |
| 1517 | && the_insn.reloc != BFD_RELOC_LO10 |
| 1518 | && the_insn.reloc != BFD_RELOC_HI22 |
| 1519 | && !in_signed_range (the_insn.exp.X_add_number, |
| 1520 | immediate_max) |
| 1521 | ) |
| 1522 | { |
| 1523 | if (the_insn.pcrel) |
| 1524 | /* Who knows? After relocation, we may be within |
| 1525 | range. Let the linker figure it out. */ |
| 1526 | { |
| 1527 | the_insn.exp.X_op = O_symbol; |
| 1528 | the_insn.exp.X_add_symbol = section_symbol (absolute_section); |
| 1529 | } |
| 1530 | else |
| 1531 | /* Immediate value is non-pcrel, and out of |
| 1532 | range. */ |
| 1533 | as_bad ("constant value %ld out of range (%ld .. %ld)", |
| 1534 | the_insn.exp.X_add_number, |
| 1535 | ~immediate_max, immediate_max); |
| 1536 | } |
| 1537 | } |
| 1538 | |
| 1539 | /* Reset to prevent extraneous range check. */ |
| 1540 | immediate_max = 0; |
| 1541 | |
| 1542 | continue; |
| 1543 | |
| 1544 | case 'a': |
| 1545 | if (*s++ == 'a') |
| 1546 | { |
| 1547 | opcode |= ANNUL; |
| 1548 | continue; |
| 1549 | } |
| 1550 | break; |
| 1551 | |
| 1552 | case 'A': |
| 1553 | { |
| 1554 | /* start-sanitize-v9 */ |
| 1555 | #ifdef NO_V9 |
| 1556 | /* end-sanitize-v9 */ |
| 1557 | char *push = input_line_pointer; |
| 1558 | expressionS e; |
| 1559 | |
| 1560 | input_line_pointer = s; |
| 1561 | |
| 1562 | expression (&e); |
| 1563 | if (e.X_op == O_constant) |
| 1564 | { |
| 1565 | opcode |= e.X_add_number << 5; |
| 1566 | s = input_line_pointer; |
| 1567 | input_line_pointer = push; |
| 1568 | continue; |
| 1569 | } /* if absolute */ |
| 1570 | |
| 1571 | break; |
| 1572 | /* start-sanitize-v9 */ |
| 1573 | #else |
| 1574 | int asi = 0; |
| 1575 | |
| 1576 | /* Parse an asi. */ |
| 1577 | if (*s == '#') |
| 1578 | { |
| 1579 | s += 1; |
| 1580 | if (!strncmp (s, "ASI_AIUP", 8)) |
| 1581 | asi = 0x10, s += 8; |
| 1582 | else if (!strncmp (s, "ASI_AIUS", 8)) |
| 1583 | asi = 0x11, s += 8; |
| 1584 | else if (!strncmp (s, "ASI_PNF", 7)) |
| 1585 | asi = 0x82, s += 7; |
| 1586 | else if (!strncmp (s, "ASI_SNF", 7)) |
| 1587 | asi = 0x83, s += 7; |
| 1588 | else if (!strncmp (s, "ASI_P", 5)) |
| 1589 | asi = 0x80, s += 5; |
| 1590 | else if (!strncmp (s, "ASI_S", 5)) |
| 1591 | asi = 0x81, s += 5; |
| 1592 | else |
| 1593 | { |
| 1594 | error_message = ": invalid asi name"; |
| 1595 | goto error; |
| 1596 | } |
| 1597 | } |
| 1598 | else if (isdigit (*s)) |
| 1599 | { |
| 1600 | char *push = input_line_pointer; |
| 1601 | input_line_pointer = s; |
| 1602 | asi = get_absolute_expression (); |
| 1603 | s = input_line_pointer; |
| 1604 | input_line_pointer = push; |
| 1605 | |
| 1606 | if (asi < 0 || asi > 255) |
| 1607 | { |
| 1608 | error_message = ": invalid asi number"; |
| 1609 | goto error; |
| 1610 | } |
| 1611 | } |
| 1612 | else |
| 1613 | { |
| 1614 | error_message = ": unrecognizable asi"; |
| 1615 | goto error; |
| 1616 | } |
| 1617 | opcode |= ASI (asi); |
| 1618 | continue; |
| 1619 | #endif |
| 1620 | /* end-sanitize-v9 */ |
| 1621 | } /* alternate space */ |
| 1622 | |
| 1623 | case 'p': |
| 1624 | if (strncmp (s, "%psr", 4) == 0) |
| 1625 | { |
| 1626 | s += 4; |
| 1627 | continue; |
| 1628 | } |
| 1629 | break; |
| 1630 | |
| 1631 | case 'q': /* floating point queue */ |
| 1632 | if (strncmp (s, "%fq", 3) == 0) |
| 1633 | { |
| 1634 | s += 3; |
| 1635 | continue; |
| 1636 | } |
| 1637 | break; |
| 1638 | |
| 1639 | case 'Q': /* coprocessor queue */ |
| 1640 | if (strncmp (s, "%cq", 3) == 0) |
| 1641 | { |
| 1642 | s += 3; |
| 1643 | continue; |
| 1644 | } |
| 1645 | break; |
| 1646 | |
| 1647 | case 'S': |
| 1648 | if (strcmp (str, "set") == 0) |
| 1649 | { |
| 1650 | special_case = SPECIAL_CASE_SET; |
| 1651 | continue; |
| 1652 | } |
| 1653 | else if (strncmp (str, "fdiv", 4) == 0) |
| 1654 | { |
| 1655 | special_case = SPECIAL_CASE_FDIV; |
| 1656 | continue; |
| 1657 | } |
| 1658 | break; |
| 1659 | |
| 1660 | /* start-sanitize-v9 */ |
| 1661 | #ifndef NO_V9 |
| 1662 | case 'o': |
| 1663 | if (strncmp (s, "%asi", 4) != 0) |
| 1664 | break; |
| 1665 | s += 4; |
| 1666 | continue; |
| 1667 | |
| 1668 | case 's': |
| 1669 | if (strncmp (s, "%fprs", 5) != 0) |
| 1670 | break; |
| 1671 | s += 5; |
| 1672 | continue; |
| 1673 | |
| 1674 | case 'E': |
| 1675 | if (strncmp (s, "%ccr", 4) != 0) |
| 1676 | break; |
| 1677 | s += 4; |
| 1678 | continue; |
| 1679 | #endif /* NO_V9 */ |
| 1680 | /* end-sanitize-v9 */ |
| 1681 | |
| 1682 | case 't': |
| 1683 | if (strncmp (s, "%tbr", 4) != 0) |
| 1684 | break; |
| 1685 | s += 4; |
| 1686 | continue; |
| 1687 | |
| 1688 | case 'w': |
| 1689 | if (strncmp (s, "%wim", 4) != 0) |
| 1690 | break; |
| 1691 | s += 4; |
| 1692 | continue; |
| 1693 | |
| 1694 | case 'y': |
| 1695 | if (strncmp (s, "%y", 2) != 0) |
| 1696 | break; |
| 1697 | s += 2; |
| 1698 | continue; |
| 1699 | |
| 1700 | default: |
| 1701 | as_fatal ("failed sanity check."); |
| 1702 | } /* switch on arg code */ |
| 1703 | break; |
| 1704 | } /* for each arg that we expect */ |
| 1705 | error: |
| 1706 | if (match == 0) |
| 1707 | { |
| 1708 | /* Args don't match. */ |
| 1709 | if (((unsigned) (&insn[1] - sparc_opcodes)) < NUMOPCODES |
| 1710 | && !strcmp (insn->name, insn[1].name)) |
| 1711 | { |
| 1712 | ++insn; |
| 1713 | s = argsStart; |
| 1714 | continue; |
| 1715 | } |
| 1716 | else |
| 1717 | { |
| 1718 | as_bad ("Illegal operands%s", error_message); |
| 1719 | return; |
| 1720 | } |
| 1721 | } |
| 1722 | else |
| 1723 | { |
| 1724 | if (insn->architecture > current_architecture) |
| 1725 | { |
| 1726 | if ((!architecture_requested || warn_on_bump) |
| 1727 | && |
| 1728 | /* start-sanitize-v9 */ |
| 1729 | #ifndef NO_V9 |
| 1730 | !ARCHITECTURES_CONFLICT_P (current_architecture, |
| 1731 | insn->architecture) |
| 1732 | #else |
| 1733 | /* end-sanitize-v9 */ |
| 1734 | 1 |
| 1735 | /* start-sanitize-v9 */ |
| 1736 | #endif |
| 1737 | /* end-sanitize-v9 */ |
| 1738 | ) |
| 1739 | { |
| 1740 | if (warn_on_bump) |
| 1741 | { |
| 1742 | as_warn ("architecture bumped from \"%s\" to \"%s\" on \"%s\"", |
| 1743 | architecture_pname[current_architecture], |
| 1744 | architecture_pname[insn->architecture], |
| 1745 | str); |
| 1746 | } /* if warning */ |
| 1747 | |
| 1748 | current_architecture = insn->architecture; |
| 1749 | } |
| 1750 | else |
| 1751 | { |
| 1752 | as_bad ("architecture mismatch on \"%s\" (\"%s\"). current architecture is \"%s\"", |
| 1753 | str, |
| 1754 | architecture_pname[insn->architecture], |
| 1755 | architecture_pname[current_architecture]); |
| 1756 | return; |
| 1757 | } /* if bump ok else error */ |
| 1758 | } /* if architecture higher */ |
| 1759 | } /* if no match */ |
| 1760 | |
| 1761 | break; |
| 1762 | } /* forever looking for a match */ |
| 1763 | |
| 1764 | the_insn.opcode = opcode; |
| 1765 | } |
| 1766 | |
| 1767 | static int |
| 1768 | getExpression (str) |
| 1769 | char *str; |
| 1770 | { |
| 1771 | char *save_in; |
| 1772 | segT seg; |
| 1773 | |
| 1774 | save_in = input_line_pointer; |
| 1775 | input_line_pointer = str; |
| 1776 | seg = expression (&the_insn.exp); |
| 1777 | if (seg != absolute_section |
| 1778 | && seg != text_section |
| 1779 | && seg != data_section |
| 1780 | && seg != bss_section |
| 1781 | && seg != undefined_section) |
| 1782 | { |
| 1783 | the_insn.error = "bad segment"; |
| 1784 | expr_end = input_line_pointer; |
| 1785 | input_line_pointer = save_in; |
| 1786 | return 1; |
| 1787 | } |
| 1788 | expr_end = input_line_pointer; |
| 1789 | input_line_pointer = save_in; |
| 1790 | return 0; |
| 1791 | } /* getExpression() */ |
| 1792 | |
| 1793 | |
| 1794 | /* |
| 1795 | This is identical to the md_atof in m68k.c. I think this is right, |
| 1796 | but I'm not sure. |
| 1797 | |
| 1798 | Turn a string in input_line_pointer into a floating point constant of type |
| 1799 | type, and store the appropriate bytes in *litP. The number of LITTLENUMS |
| 1800 | emitted is stored in *sizeP . An error message is returned, or NULL on OK. |
| 1801 | */ |
| 1802 | |
| 1803 | /* Equal to MAX_PRECISION in atof-ieee.c */ |
| 1804 | #define MAX_LITTLENUMS 6 |
| 1805 | |
| 1806 | char * |
| 1807 | md_atof (type, litP, sizeP) |
| 1808 | char type; |
| 1809 | char *litP; |
| 1810 | int *sizeP; |
| 1811 | { |
| 1812 | int prec; |
| 1813 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; |
| 1814 | LITTLENUM_TYPE *wordP; |
| 1815 | char *t; |
| 1816 | char *atof_ieee (); |
| 1817 | |
| 1818 | switch (type) |
| 1819 | { |
| 1820 | |
| 1821 | case 'f': |
| 1822 | case 'F': |
| 1823 | case 's': |
| 1824 | case 'S': |
| 1825 | prec = 2; |
| 1826 | break; |
| 1827 | |
| 1828 | case 'd': |
| 1829 | case 'D': |
| 1830 | case 'r': |
| 1831 | case 'R': |
| 1832 | prec = 4; |
| 1833 | break; |
| 1834 | |
| 1835 | case 'x': |
| 1836 | case 'X': |
| 1837 | prec = 6; |
| 1838 | break; |
| 1839 | |
| 1840 | case 'p': |
| 1841 | case 'P': |
| 1842 | prec = 6; |
| 1843 | break; |
| 1844 | |
| 1845 | default: |
| 1846 | *sizeP = 0; |
| 1847 | return "Bad call to MD_ATOF()"; |
| 1848 | } |
| 1849 | t = atof_ieee (input_line_pointer, type, words); |
| 1850 | if (t) |
| 1851 | input_line_pointer = t; |
| 1852 | *sizeP = prec * sizeof (LITTLENUM_TYPE); |
| 1853 | for (wordP = words; prec--;) |
| 1854 | { |
| 1855 | md_number_to_chars (litP, (valueT) (*wordP++), sizeof (LITTLENUM_TYPE)); |
| 1856 | litP += sizeof (LITTLENUM_TYPE); |
| 1857 | } |
| 1858 | return 0; |
| 1859 | } |
| 1860 | |
| 1861 | /* |
| 1862 | * Write out big-endian. |
| 1863 | */ |
| 1864 | void |
| 1865 | md_number_to_chars (buf, val, n) |
| 1866 | char *buf; |
| 1867 | valueT val; |
| 1868 | int n; |
| 1869 | { |
| 1870 | number_to_chars_bigendian (buf, val, n); |
| 1871 | } |
| 1872 | |
| 1873 | /* Apply a fixS to the frags, now that we know the value it ought to |
| 1874 | hold. */ |
| 1875 | |
| 1876 | int |
| 1877 | md_apply_fix (fixP, value) |
| 1878 | fixS *fixP; |
| 1879 | valueT *value; |
| 1880 | { |
| 1881 | char *buf = fixP->fx_where + fixP->fx_frag->fr_literal; |
| 1882 | offsetT val; |
| 1883 | |
| 1884 | val = *value; |
| 1885 | |
| 1886 | assert (fixP->fx_r_type < BFD_RELOC_UNUSED); |
| 1887 | |
| 1888 | fixP->fx_addnumber = val; /* Remember value for emit_reloc */ |
| 1889 | |
| 1890 | #ifdef OBJ_ELF |
| 1891 | /* FIXME: SPARC ELF relocations don't use an addend in the data |
| 1892 | field itself. This whole approach should be somehow combined |
| 1893 | with the calls to bfd_perform_relocation. */ |
| 1894 | if (fixP->fx_addsy != NULL) |
| 1895 | return 1; |
| 1896 | #endif |
| 1897 | |
| 1898 | /* This is a hack. There should be a better way to |
| 1899 | handle this. Probably in terms of howto fields, once |
| 1900 | we can look at these fixups in terms of howtos. */ |
| 1901 | if (fixP->fx_r_type == BFD_RELOC_32_PCREL_S2 && fixP->fx_addsy) |
| 1902 | val += fixP->fx_where + fixP->fx_frag->fr_address; |
| 1903 | |
| 1904 | switch (fixP->fx_r_type) |
| 1905 | { |
| 1906 | case BFD_RELOC_16: |
| 1907 | buf[0] = val >> 8; |
| 1908 | buf[1] = val; |
| 1909 | break; |
| 1910 | |
| 1911 | case BFD_RELOC_32: |
| 1912 | buf[0] = val >> 24; |
| 1913 | buf[1] = val >> 16; |
| 1914 | buf[2] = val >> 8; |
| 1915 | buf[3] = val; |
| 1916 | break; |
| 1917 | |
| 1918 | case BFD_RELOC_32_PCREL_S2: |
| 1919 | val = (val >>= 2) + 1; |
| 1920 | buf[0] |= (val >> 24) & 0x3f; |
| 1921 | buf[1] = (val >> 16); |
| 1922 | buf[2] = val >> 8; |
| 1923 | buf[3] = val; |
| 1924 | break; |
| 1925 | |
| 1926 | /* start-sanitize-v9 */ |
| 1927 | #ifndef NO_V9 |
| 1928 | case BFD_RELOC_64: |
| 1929 | buf[0] = val >> 56; |
| 1930 | buf[1] = val >> 48; |
| 1931 | buf[2] = val >> 40; |
| 1932 | buf[3] = val >> 32; |
| 1933 | buf[4] = val >> 24; |
| 1934 | buf[5] = val >> 16; |
| 1935 | buf[6] = val >> 8; |
| 1936 | buf[7] = val; |
| 1937 | break; |
| 1938 | |
| 1939 | case BFD_RELOC_SPARC_11: |
| 1940 | if (((val > 0) && (val & ~0x7ff)) |
| 1941 | || ((val < 0) && (~(val - 1) & ~0x7ff))) |
| 1942 | { |
| 1943 | as_bad ("relocation overflow."); |
| 1944 | } /* on overflow */ |
| 1945 | |
| 1946 | buf[2] |= (val >> 8) & 0x7; |
| 1947 | buf[3] = val & 0xff; |
| 1948 | break; |
| 1949 | |
| 1950 | case BFD_RELOC_SPARC_10: |
| 1951 | if (((val > 0) && (val & ~0x3ff)) |
| 1952 | || ((val < 0) && (~(val - 1) & ~0x3ff))) |
| 1953 | { |
| 1954 | as_bad ("relocation overflow."); |
| 1955 | } /* on overflow */ |
| 1956 | |
| 1957 | buf[2] |= (val >> 8) & 0x3; |
| 1958 | buf[3] = val & 0xff; |
| 1959 | break; |
| 1960 | |
| 1961 | case BFD_RELOC_SPARC_WDISP16: |
| 1962 | if (((val > 0) && (val & ~0x3fffc)) |
| 1963 | || ((val < 0) && (~(val - 1) & ~0x3fffc))) |
| 1964 | { |
| 1965 | as_bad ("relocation overflow."); |
| 1966 | } /* on overflow */ |
| 1967 | |
| 1968 | val = (val >>= 2) + 1; |
| 1969 | buf[1] |= ((val >> 14) & 0x3) << 4; |
| 1970 | buf[2] |= (val >> 8) & 0x3f; |
| 1971 | buf[3] = val & 0xff; |
| 1972 | break; |
| 1973 | |
| 1974 | case BFD_RELOC_SPARC_WDISP19: |
| 1975 | if (((val > 0) && (val & ~0x1ffffc)) |
| 1976 | || ((val < 0) && (~(val - 1) & ~0x1ffffc))) |
| 1977 | { |
| 1978 | as_bad ("relocation overflow."); |
| 1979 | } /* on overflow */ |
| 1980 | |
| 1981 | val = (val >>= 2) + 1; |
| 1982 | buf[1] |= (val >> 16) & 0x7; |
| 1983 | buf[2] = (val >> 8) & 0xff; |
| 1984 | buf[3] = val & 0xff; |
| 1985 | break; |
| 1986 | |
| 1987 | case BFD_RELOC_SPARC_HH22: |
| 1988 | val >>= 32; |
| 1989 | /* intentional fallthrough */ |
| 1990 | #endif /* NO_V9 */ |
| 1991 | /* end-sanitize-v9 */ |
| 1992 | |
| 1993 | /* start-sanitize-v9 */ |
| 1994 | #ifndef NO_V9 |
| 1995 | case BFD_RELOC_SPARC_LM22: |
| 1996 | #endif |
| 1997 | /* end-sanitize-v9 */ |
| 1998 | case BFD_RELOC_HI22: |
| 1999 | if (!fixP->fx_addsy) |
| 2000 | { |
| 2001 | buf[1] |= (val >> 26) & 0x3f; |
| 2002 | buf[2] = val >> 18; |
| 2003 | buf[3] = val >> 10; |
| 2004 | } |
| 2005 | else |
| 2006 | { |
| 2007 | buf[2] = 0; |
| 2008 | buf[3] = 0; |
| 2009 | } |
| 2010 | break; |
| 2011 | |
| 2012 | case BFD_RELOC_SPARC22: |
| 2013 | if (val & ~0x003fffff) |
| 2014 | { |
| 2015 | as_bad ("relocation overflow"); |
| 2016 | } /* on overflow */ |
| 2017 | buf[1] |= (val >> 16) & 0x3f; |
| 2018 | buf[2] = val >> 8; |
| 2019 | buf[3] = val & 0xff; |
| 2020 | break; |
| 2021 | |
| 2022 | /* start-sanitize-v9 */ |
| 2023 | #ifndef NO_V9 |
| 2024 | case BFD_RELOC_SPARC_HM10: |
| 2025 | val >>= 32; |
| 2026 | /* intentional fallthrough */ |
| 2027 | #endif /* NO_V9 */ |
| 2028 | /* end-sanitize-v9 */ |
| 2029 | |
| 2030 | case BFD_RELOC_LO10: |
| 2031 | if (!fixP->fx_addsy) |
| 2032 | { |
| 2033 | buf[2] |= (val >> 8) & 0x03; |
| 2034 | buf[3] = val; |
| 2035 | } |
| 2036 | else |
| 2037 | buf[3] = 0; |
| 2038 | break; |
| 2039 | |
| 2040 | case BFD_RELOC_SPARC13: |
| 2041 | if (! in_signed_range (val, 0x1fff)) |
| 2042 | as_bad ("relocation overflow"); |
| 2043 | |
| 2044 | buf[2] |= (val >> 8) & 0x1f; |
| 2045 | buf[3] = val; |
| 2046 | break; |
| 2047 | |
| 2048 | case BFD_RELOC_SPARC_WDISP22: |
| 2049 | val = (val >>= 2) + 1; |
| 2050 | /* FALLTHROUGH */ |
| 2051 | case BFD_RELOC_SPARC_BASE22: |
| 2052 | buf[1] |= (val >> 16) & 0x3f; |
| 2053 | buf[2] = val >> 8; |
| 2054 | buf[3] = val; |
| 2055 | break; |
| 2056 | |
| 2057 | case BFD_RELOC_NONE: |
| 2058 | default: |
| 2059 | as_bad ("bad or unhandled relocation type: 0x%02x", fixP->fx_r_type); |
| 2060 | break; |
| 2061 | } |
| 2062 | |
| 2063 | /* Are we finished with this relocation now? */ |
| 2064 | if (fixP->fx_addsy == 0 && !fixP->fx_pcrel) |
| 2065 | fixP->fx_done = 1; |
| 2066 | |
| 2067 | return 1; |
| 2068 | } |
| 2069 | |
| 2070 | /* Translate internal representation of relocation info to BFD target |
| 2071 | format. */ |
| 2072 | arelent * |
| 2073 | tc_gen_reloc (section, fixp) |
| 2074 | asection *section; |
| 2075 | fixS *fixp; |
| 2076 | { |
| 2077 | arelent *reloc; |
| 2078 | bfd_reloc_code_real_type code; |
| 2079 | |
| 2080 | reloc = (arelent *) bfd_alloc_by_size_t (stdoutput, sizeof (arelent)); |
| 2081 | assert (reloc != 0); |
| 2082 | |
| 2083 | reloc->sym_ptr_ptr = &fixp->fx_addsy->bsym; |
| 2084 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
| 2085 | |
| 2086 | switch (fixp->fx_r_type) |
| 2087 | { |
| 2088 | case BFD_RELOC_16: |
| 2089 | case BFD_RELOC_32: |
| 2090 | case BFD_RELOC_HI22: |
| 2091 | case BFD_RELOC_LO10: |
| 2092 | case BFD_RELOC_32_PCREL_S2: |
| 2093 | case BFD_RELOC_SPARC13: |
| 2094 | case BFD_RELOC_SPARC_BASE13: |
| 2095 | case BFD_RELOC_SPARC_WDISP22: |
| 2096 | /* start-sanitize-v9 */ |
| 2097 | case BFD_RELOC_64: |
| 2098 | case BFD_RELOC_SPARC_10: |
| 2099 | case BFD_RELOC_SPARC_11: |
| 2100 | case BFD_RELOC_SPARC_HH22: |
| 2101 | case BFD_RELOC_SPARC_HM10: |
| 2102 | case BFD_RELOC_SPARC_LM22: |
| 2103 | case BFD_RELOC_SPARC_PC_HH22: |
| 2104 | case BFD_RELOC_SPARC_PC_HM10: |
| 2105 | case BFD_RELOC_SPARC_PC_LM22: |
| 2106 | /* end-sanitize-v9 */ |
| 2107 | code = fixp->fx_r_type; |
| 2108 | break; |
| 2109 | default: |
| 2110 | abort (); |
| 2111 | } |
| 2112 | reloc->howto = bfd_reloc_type_lookup (stdoutput, code); |
| 2113 | if (reloc->howto == 0) |
| 2114 | { |
| 2115 | as_bad_where (fixp->fx_file, fixp->fx_line, |
| 2116 | "internal error: can't export reloc type %d", |
| 2117 | fixp->fx_r_type); |
| 2118 | return 0; |
| 2119 | } |
| 2120 | assert (!fixp->fx_pcrel == !reloc->howto->pc_relative); |
| 2121 | |
| 2122 | /* @@ Why fx_addnumber sometimes and fx_offset other times? */ |
| 2123 | if (reloc->howto->pc_relative == 0) |
| 2124 | reloc->addend = fixp->fx_addnumber; |
| 2125 | #if defined (OBJ_ELF) || defined (OBJ_COFF) |
| 2126 | else if ((fixp->fx_addsy->bsym->flags & BSF_SECTION_SYM) != 0) |
| 2127 | reloc->addend = (section->vma |
| 2128 | + fixp->fx_addnumber |
| 2129 | + md_pcrel_from (fixp)); |
| 2130 | #endif |
| 2131 | else |
| 2132 | reloc->addend = fixp->fx_offset - reloc->address; |
| 2133 | |
| 2134 | return reloc; |
| 2135 | } |
| 2136 | |
| 2137 | |
| 2138 | #if 0 |
| 2139 | /* for debugging only */ |
| 2140 | static void |
| 2141 | print_insn (insn) |
| 2142 | struct sparc_it *insn; |
| 2143 | { |
| 2144 | const char *const Reloc[] = { |
| 2145 | "RELOC_8", |
| 2146 | "RELOC_16", |
| 2147 | "RELOC_32", |
| 2148 | "RELOC_DISP8", |
| 2149 | "RELOC_DISP16", |
| 2150 | "RELOC_DISP32", |
| 2151 | "RELOC_WDISP30", |
| 2152 | "RELOC_WDISP22", |
| 2153 | "RELOC_HI22", |
| 2154 | "RELOC_22", |
| 2155 | "RELOC_13", |
| 2156 | "RELOC_LO10", |
| 2157 | "RELOC_SFA_BASE", |
| 2158 | "RELOC_SFA_OFF13", |
| 2159 | "RELOC_BASE10", |
| 2160 | "RELOC_BASE13", |
| 2161 | "RELOC_BASE22", |
| 2162 | "RELOC_PC10", |
| 2163 | "RELOC_PC22", |
| 2164 | "RELOC_JMP_TBL", |
| 2165 | "RELOC_SEGOFF16", |
| 2166 | "RELOC_GLOB_DAT", |
| 2167 | "RELOC_JMP_SLOT", |
| 2168 | "RELOC_RELATIVE", |
| 2169 | "NO_RELOC" |
| 2170 | }; |
| 2171 | |
| 2172 | if (insn->error) |
| 2173 | fprintf (stderr, "ERROR: %s\n"); |
| 2174 | fprintf (stderr, "opcode=0x%08x\n", insn->opcode); |
| 2175 | fprintf (stderr, "reloc = %s\n", Reloc[insn->reloc]); |
| 2176 | fprintf (stderr, "exp = {\n"); |
| 2177 | fprintf (stderr, "\t\tX_add_symbol = %s\n", |
| 2178 | ((insn->exp.X_add_symbol != NULL) |
| 2179 | ? ((S_GET_NAME (insn->exp.X_add_symbol) != NULL) |
| 2180 | ? S_GET_NAME (insn->exp.X_add_symbol) |
| 2181 | : "???") |
| 2182 | : "0")); |
| 2183 | fprintf (stderr, "\t\tX_sub_symbol = %s\n", |
| 2184 | ((insn->exp.X_op_symbol != NULL) |
| 2185 | ? (S_GET_NAME (insn->exp.X_op_symbol) |
| 2186 | ? S_GET_NAME (insn->exp.X_op_symbol) |
| 2187 | : "???") |
| 2188 | : "0")); |
| 2189 | fprintf (stderr, "\t\tX_add_number = %d\n", |
| 2190 | insn->exp.X_add_number); |
| 2191 | fprintf (stderr, "}\n"); |
| 2192 | } |
| 2193 | #endif |
| 2194 | |
| 2195 | /* |
| 2196 | * md_parse_option |
| 2197 | * Invocation line includes a switch not recognized by the base assembler. |
| 2198 | * See if it's a processor-specific option. These are: |
| 2199 | * |
| 2200 | * -bump |
| 2201 | * Warn on architecture bumps. See also -A. |
| 2202 | * |
| 2203 | * -Av6, -Av7, -Av8, -Asparclite |
| 2204 | * Select the architecture. Instructions or features not |
| 2205 | * supported by the selected architecture cause fatal errors. |
| 2206 | * |
| 2207 | * The default is to start at v6, and bump the architecture up |
| 2208 | * whenever an instruction is seen at a higher level. |
| 2209 | * |
| 2210 | * If -bump is specified, a warning is printing when bumping to |
| 2211 | * higher levels. |
| 2212 | * |
| 2213 | * If an architecture is specified, all instructions must match |
| 2214 | * that architecture. Any higher level instructions are flagged |
| 2215 | * as errors. |
| 2216 | * |
| 2217 | * if both an architecture and -bump are specified, the |
| 2218 | * architecture starts at the specified level, but bumps are |
| 2219 | * warnings. |
| 2220 | * |
| 2221 | * start-sanitize-v9 |
| 2222 | * -Av9 |
| 2223 | * Another architecture switch. |
| 2224 | * |
| 2225 | * Note: |
| 2226 | * Bumping between incompatible architectures is always an |
| 2227 | * error. For example, from sparclite to v9. |
| 2228 | * end-sanitize-v9 |
| 2229 | */ |
| 2230 | |
| 2231 | int |
| 2232 | md_parse_option (argP, cntP, vecP) |
| 2233 | char **argP; |
| 2234 | int *cntP; |
| 2235 | char ***vecP; |
| 2236 | { |
| 2237 | char *p; |
| 2238 | const char **arch; |
| 2239 | |
| 2240 | if (!strcmp (*argP, "bump")) |
| 2241 | { |
| 2242 | warn_on_bump = 1; |
| 2243 | |
| 2244 | } |
| 2245 | else if (**argP == 'A') |
| 2246 | { |
| 2247 | p = (*argP) + 1; |
| 2248 | |
| 2249 | for (arch = architecture_pname; *arch != NULL; ++arch) |
| 2250 | { |
| 2251 | if (strcmp (p, *arch) == 0) |
| 2252 | { |
| 2253 | break; |
| 2254 | } /* found a match */ |
| 2255 | } /* walk the pname table */ |
| 2256 | |
| 2257 | if (*arch == NULL) |
| 2258 | { |
| 2259 | as_bad ("unknown architecture: %s", p); |
| 2260 | } |
| 2261 | else |
| 2262 | { |
| 2263 | current_architecture = (enum sparc_architecture) (arch - architecture_pname); |
| 2264 | architecture_requested = 1; |
| 2265 | } |
| 2266 | } |
| 2267 | #ifdef OBJ_ELF |
| 2268 | else if (**argP == 'V') |
| 2269 | { |
| 2270 | print_version_id (); |
| 2271 | } |
| 2272 | else if (**argP == 'Q') |
| 2273 | { |
| 2274 | /* Qy - do emit .comment |
| 2275 | Qn - do not emit .comment */ |
| 2276 | } |
| 2277 | else if (**argP == 's') |
| 2278 | { |
| 2279 | /* use .stab instead of .stab.excl */ |
| 2280 | } |
| 2281 | #endif |
| 2282 | else if (strcmp (*argP, "sparc") == 0) |
| 2283 | { |
| 2284 | /* Ignore -sparc, used by SunOS make default .s.o rule. */ |
| 2285 | } |
| 2286 | else |
| 2287 | { |
| 2288 | /* Unknown option */ |
| 2289 | (*argP)++; |
| 2290 | return 0; |
| 2291 | } |
| 2292 | **argP = '\0'; /* Done parsing this switch */ |
| 2293 | return 1; |
| 2294 | } /* md_parse_option() */ |
| 2295 | |
| 2296 | /* We have no need to default values of symbols. */ |
| 2297 | |
| 2298 | /* ARGSUSED */ |
| 2299 | symbolS * |
| 2300 | md_undefined_symbol (name) |
| 2301 | char *name; |
| 2302 | { |
| 2303 | return 0; |
| 2304 | } /* md_undefined_symbol() */ |
| 2305 | |
| 2306 | /* Parse an operand that is machine-specific. |
| 2307 | We just return without modifying the expression if we have nothing |
| 2308 | to do. */ |
| 2309 | |
| 2310 | /* ARGSUSED */ |
| 2311 | void |
| 2312 | md_operand (expressionP) |
| 2313 | expressionS *expressionP; |
| 2314 | { |
| 2315 | } |
| 2316 | |
| 2317 | /* Round up a section size to the appropriate boundary. */ |
| 2318 | valueT |
| 2319 | md_section_align (segment, size) |
| 2320 | segT segment; |
| 2321 | valueT size; |
| 2322 | { |
| 2323 | #ifndef OBJ_ELF |
| 2324 | /* This is not right for ELF; a.out wants it, and COFF will force |
| 2325 | the alignment anyways. */ |
| 2326 | valueT align = (valueT) 1 << (valueT) (stdoutput->xvec->align_power_min); |
| 2327 | valueT newsize; |
| 2328 | /* turn alignment value into a mask */ |
| 2329 | align--; |
| 2330 | newsize = (size + align) & ~align; |
| 2331 | return newsize; |
| 2332 | #else |
| 2333 | return size; |
| 2334 | #endif |
| 2335 | } |
| 2336 | |
| 2337 | /* Exactly what point is a PC-relative offset relative TO? |
| 2338 | On the sparc, they're relative to the address of the offset, plus |
| 2339 | its size. This gets us to the following instruction. |
| 2340 | (??? Is this right? FIXME-SOON) */ |
| 2341 | long |
| 2342 | md_pcrel_from (fixP) |
| 2343 | fixS *fixP; |
| 2344 | { |
| 2345 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; |
| 2346 | } |
| 2347 | |
| 2348 | /* end of tc-sparc.c */ |