| 1 | /* tc-ia64.c -- Assembler for the HP/Intel IA-64 architecture. |
| 2 | Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
| 3 | 2008, 2009 Free Software Foundation, Inc. |
| 4 | Contributed by David Mosberger-Tang <davidm@hpl.hp.com> |
| 5 | |
| 6 | This file is part of GAS, the GNU Assembler. |
| 7 | |
| 8 | GAS is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3, or (at your option) |
| 11 | any later version. |
| 12 | |
| 13 | GAS is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with GAS; see the file COPYING. If not, write to |
| 20 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
| 21 | Boston, MA 02110-1301, USA. */ |
| 22 | |
| 23 | /* |
| 24 | TODO: |
| 25 | |
| 26 | - optional operands |
| 27 | - directives: |
| 28 | .eb |
| 29 | .estate |
| 30 | .lb |
| 31 | .popsection |
| 32 | .previous |
| 33 | .psr |
| 34 | .pushsection |
| 35 | - labels are wrong if automatic alignment is introduced |
| 36 | (e.g., checkout the second real10 definition in test-data.s) |
| 37 | - DV-related stuff: |
| 38 | <reg>.safe_across_calls and any other DV-related directives I don't |
| 39 | have documentation for. |
| 40 | verify mod-sched-brs reads/writes are checked/marked (and other |
| 41 | notes) |
| 42 | |
| 43 | */ |
| 44 | |
| 45 | #include "as.h" |
| 46 | #include "safe-ctype.h" |
| 47 | #include "dwarf2dbg.h" |
| 48 | #include "subsegs.h" |
| 49 | |
| 50 | #include "opcode/ia64.h" |
| 51 | |
| 52 | #include "elf/ia64.h" |
| 53 | #include "bfdver.h" |
| 54 | #include <time.h> |
| 55 | |
| 56 | #ifdef HAVE_LIMITS_H |
| 57 | #include <limits.h> |
| 58 | #endif |
| 59 | |
| 60 | #define NELEMS(a) ((int) (sizeof (a)/sizeof ((a)[0]))) |
| 61 | |
| 62 | /* Some systems define MIN in, e.g., param.h. */ |
| 63 | #undef MIN |
| 64 | #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
| 65 | |
| 66 | #define NUM_SLOTS 4 |
| 67 | #define PREV_SLOT md.slot[(md.curr_slot + NUM_SLOTS - 1) % NUM_SLOTS] |
| 68 | #define CURR_SLOT md.slot[md.curr_slot] |
| 69 | |
| 70 | #define O_pseudo_fixup (O_max + 1) |
| 71 | |
| 72 | enum special_section |
| 73 | { |
| 74 | /* IA-64 ABI section pseudo-ops. */ |
| 75 | SPECIAL_SECTION_BSS = 0, |
| 76 | SPECIAL_SECTION_SBSS, |
| 77 | SPECIAL_SECTION_SDATA, |
| 78 | SPECIAL_SECTION_RODATA, |
| 79 | SPECIAL_SECTION_COMMENT, |
| 80 | SPECIAL_SECTION_UNWIND, |
| 81 | SPECIAL_SECTION_UNWIND_INFO, |
| 82 | /* HPUX specific section pseudo-ops. */ |
| 83 | SPECIAL_SECTION_INIT_ARRAY, |
| 84 | SPECIAL_SECTION_FINI_ARRAY, |
| 85 | }; |
| 86 | |
| 87 | enum reloc_func |
| 88 | { |
| 89 | FUNC_DTP_MODULE, |
| 90 | FUNC_DTP_RELATIVE, |
| 91 | FUNC_FPTR_RELATIVE, |
| 92 | FUNC_GP_RELATIVE, |
| 93 | FUNC_LT_RELATIVE, |
| 94 | FUNC_LT_RELATIVE_X, |
| 95 | FUNC_PC_RELATIVE, |
| 96 | FUNC_PLT_RELATIVE, |
| 97 | FUNC_SEC_RELATIVE, |
| 98 | FUNC_SEG_RELATIVE, |
| 99 | FUNC_TP_RELATIVE, |
| 100 | FUNC_LTV_RELATIVE, |
| 101 | FUNC_LT_FPTR_RELATIVE, |
| 102 | FUNC_LT_DTP_MODULE, |
| 103 | FUNC_LT_DTP_RELATIVE, |
| 104 | FUNC_LT_TP_RELATIVE, |
| 105 | FUNC_IPLT_RELOC, |
| 106 | }; |
| 107 | |
| 108 | enum reg_symbol |
| 109 | { |
| 110 | REG_GR = 0, |
| 111 | REG_FR = (REG_GR + 128), |
| 112 | REG_AR = (REG_FR + 128), |
| 113 | REG_CR = (REG_AR + 128), |
| 114 | REG_P = (REG_CR + 128), |
| 115 | REG_BR = (REG_P + 64), |
| 116 | REG_IP = (REG_BR + 8), |
| 117 | REG_CFM, |
| 118 | REG_PR, |
| 119 | REG_PR_ROT, |
| 120 | REG_PSR, |
| 121 | REG_PSR_L, |
| 122 | REG_PSR_UM, |
| 123 | /* The following are pseudo-registers for use by gas only. */ |
| 124 | IND_CPUID, |
| 125 | IND_DBR, |
| 126 | IND_DTR, |
| 127 | IND_ITR, |
| 128 | IND_IBR, |
| 129 | IND_MSR, |
| 130 | IND_PKR, |
| 131 | IND_PMC, |
| 132 | IND_PMD, |
| 133 | IND_RR, |
| 134 | /* The following pseudo-registers are used for unwind directives only: */ |
| 135 | REG_PSP, |
| 136 | REG_PRIUNAT, |
| 137 | REG_NUM |
| 138 | }; |
| 139 | |
| 140 | enum dynreg_type |
| 141 | { |
| 142 | DYNREG_GR = 0, /* dynamic general purpose register */ |
| 143 | DYNREG_FR, /* dynamic floating point register */ |
| 144 | DYNREG_PR, /* dynamic predicate register */ |
| 145 | DYNREG_NUM_TYPES |
| 146 | }; |
| 147 | |
| 148 | enum operand_match_result |
| 149 | { |
| 150 | OPERAND_MATCH, |
| 151 | OPERAND_OUT_OF_RANGE, |
| 152 | OPERAND_MISMATCH |
| 153 | }; |
| 154 | |
| 155 | /* On the ia64, we can't know the address of a text label until the |
| 156 | instructions are packed into a bundle. To handle this, we keep |
| 157 | track of the list of labels that appear in front of each |
| 158 | instruction. */ |
| 159 | struct label_fix |
| 160 | { |
| 161 | struct label_fix *next; |
| 162 | struct symbol *sym; |
| 163 | bfd_boolean dw2_mark_labels; |
| 164 | }; |
| 165 | |
| 166 | /* This is the endianness of the current section. */ |
| 167 | extern int target_big_endian; |
| 168 | |
| 169 | /* This is the default endianness. */ |
| 170 | static int default_big_endian = TARGET_BYTES_BIG_ENDIAN; |
| 171 | |
| 172 | void (*ia64_number_to_chars) (char *, valueT, int); |
| 173 | |
| 174 | static void ia64_float_to_chars_bigendian (char *, LITTLENUM_TYPE *, int); |
| 175 | static void ia64_float_to_chars_littleendian (char *, LITTLENUM_TYPE *, int); |
| 176 | |
| 177 | static void (*ia64_float_to_chars) (char *, LITTLENUM_TYPE *, int); |
| 178 | |
| 179 | static struct hash_control *alias_hash; |
| 180 | static struct hash_control *alias_name_hash; |
| 181 | static struct hash_control *secalias_hash; |
| 182 | static struct hash_control *secalias_name_hash; |
| 183 | |
| 184 | /* List of chars besides those in app.c:symbol_chars that can start an |
| 185 | operand. Used to prevent the scrubber eating vital white-space. */ |
| 186 | const char ia64_symbol_chars[] = "@?"; |
| 187 | |
| 188 | /* Characters which always start a comment. */ |
| 189 | const char comment_chars[] = ""; |
| 190 | |
| 191 | /* Characters which start a comment at the beginning of a line. */ |
| 192 | const char line_comment_chars[] = "#"; |
| 193 | |
| 194 | /* Characters which may be used to separate multiple commands on a |
| 195 | single line. */ |
| 196 | const char line_separator_chars[] = ";{}"; |
| 197 | |
| 198 | /* Characters which are used to indicate an exponent in a floating |
| 199 | point number. */ |
| 200 | const char EXP_CHARS[] = "eE"; |
| 201 | |
| 202 | /* Characters which mean that a number is a floating point constant, |
| 203 | as in 0d1.0. */ |
| 204 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; |
| 205 | |
| 206 | /* ia64-specific option processing: */ |
| 207 | |
| 208 | const char *md_shortopts = "m:N:x::"; |
| 209 | |
| 210 | struct option md_longopts[] = |
| 211 | { |
| 212 | #define OPTION_MCONSTANT_GP (OPTION_MD_BASE + 1) |
| 213 | {"mconstant-gp", no_argument, NULL, OPTION_MCONSTANT_GP}, |
| 214 | #define OPTION_MAUTO_PIC (OPTION_MD_BASE + 2) |
| 215 | {"mauto-pic", no_argument, NULL, OPTION_MAUTO_PIC} |
| 216 | }; |
| 217 | |
| 218 | size_t md_longopts_size = sizeof (md_longopts); |
| 219 | |
| 220 | static struct |
| 221 | { |
| 222 | struct hash_control *pseudo_hash; /* pseudo opcode hash table */ |
| 223 | struct hash_control *reg_hash; /* register name hash table */ |
| 224 | struct hash_control *dynreg_hash; /* dynamic register hash table */ |
| 225 | struct hash_control *const_hash; /* constant hash table */ |
| 226 | struct hash_control *entry_hash; /* code entry hint hash table */ |
| 227 | |
| 228 | /* If X_op is != O_absent, the registername for the instruction's |
| 229 | qualifying predicate. If NULL, p0 is assumed for instructions |
| 230 | that are predictable. */ |
| 231 | expressionS qp; |
| 232 | |
| 233 | /* Optimize for which CPU. */ |
| 234 | enum |
| 235 | { |
| 236 | itanium1, |
| 237 | itanium2 |
| 238 | } tune; |
| 239 | |
| 240 | /* What to do when hint.b is used. */ |
| 241 | enum |
| 242 | { |
| 243 | hint_b_error, |
| 244 | hint_b_warning, |
| 245 | hint_b_ok |
| 246 | } hint_b; |
| 247 | |
| 248 | unsigned int |
| 249 | manual_bundling : 1, |
| 250 | debug_dv: 1, |
| 251 | detect_dv: 1, |
| 252 | explicit_mode : 1, /* which mode we're in */ |
| 253 | default_explicit_mode : 1, /* which mode is the default */ |
| 254 | mode_explicitly_set : 1, /* was the current mode explicitly set? */ |
| 255 | auto_align : 1, |
| 256 | keep_pending_output : 1; |
| 257 | |
| 258 | /* What to do when something is wrong with unwind directives. */ |
| 259 | enum |
| 260 | { |
| 261 | unwind_check_warning, |
| 262 | unwind_check_error |
| 263 | } unwind_check; |
| 264 | |
| 265 | /* Each bundle consists of up to three instructions. We keep |
| 266 | track of four most recent instructions so we can correctly set |
| 267 | the end_of_insn_group for the last instruction in a bundle. */ |
| 268 | int curr_slot; |
| 269 | int num_slots_in_use; |
| 270 | struct slot |
| 271 | { |
| 272 | unsigned int |
| 273 | end_of_insn_group : 1, |
| 274 | manual_bundling_on : 1, |
| 275 | manual_bundling_off : 1, |
| 276 | loc_directive_seen : 1; |
| 277 | signed char user_template; /* user-selected template, if any */ |
| 278 | unsigned char qp_regno; /* qualifying predicate */ |
| 279 | /* This duplicates a good fraction of "struct fix" but we |
| 280 | can't use a "struct fix" instead since we can't call |
| 281 | fix_new_exp() until we know the address of the instruction. */ |
| 282 | int num_fixups; |
| 283 | struct insn_fix |
| 284 | { |
| 285 | bfd_reloc_code_real_type code; |
| 286 | enum ia64_opnd opnd; /* type of operand in need of fix */ |
| 287 | unsigned int is_pcrel : 1; /* is operand pc-relative? */ |
| 288 | expressionS expr; /* the value to be inserted */ |
| 289 | } |
| 290 | fixup[2]; /* at most two fixups per insn */ |
| 291 | struct ia64_opcode *idesc; |
| 292 | struct label_fix *label_fixups; |
| 293 | struct label_fix *tag_fixups; |
| 294 | struct unw_rec_list *unwind_record; /* Unwind directive. */ |
| 295 | expressionS opnd[6]; |
| 296 | char *src_file; |
| 297 | unsigned int src_line; |
| 298 | struct dwarf2_line_info debug_line; |
| 299 | } |
| 300 | slot[NUM_SLOTS]; |
| 301 | |
| 302 | segT last_text_seg; |
| 303 | |
| 304 | struct dynreg |
| 305 | { |
| 306 | struct dynreg *next; /* next dynamic register */ |
| 307 | const char *name; |
| 308 | unsigned short base; /* the base register number */ |
| 309 | unsigned short num_regs; /* # of registers in this set */ |
| 310 | } |
| 311 | *dynreg[DYNREG_NUM_TYPES], in, loc, out, rot; |
| 312 | |
| 313 | flagword flags; /* ELF-header flags */ |
| 314 | |
| 315 | struct mem_offset { |
| 316 | unsigned hint:1; /* is this hint currently valid? */ |
| 317 | bfd_vma offset; /* mem.offset offset */ |
| 318 | bfd_vma base; /* mem.offset base */ |
| 319 | } mem_offset; |
| 320 | |
| 321 | int path; /* number of alt. entry points seen */ |
| 322 | const char **entry_labels; /* labels of all alternate paths in |
| 323 | the current DV-checking block. */ |
| 324 | int maxpaths; /* size currently allocated for |
| 325 | entry_labels */ |
| 326 | |
| 327 | int pointer_size; /* size in bytes of a pointer */ |
| 328 | int pointer_size_shift; /* shift size of a pointer for alignment */ |
| 329 | |
| 330 | symbolS *indregsym[IND_RR - IND_CPUID + 1]; |
| 331 | } |
| 332 | md; |
| 333 | |
| 334 | /* These are not const, because they are modified to MMI for non-itanium1 |
| 335 | targets below. */ |
| 336 | /* MFI bundle of nops. */ |
| 337 | static unsigned char le_nop[16] = |
| 338 | { |
| 339 | 0x0c, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, |
| 340 | 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00 |
| 341 | }; |
| 342 | /* MFI bundle of nops with stop-bit. */ |
| 343 | static unsigned char le_nop_stop[16] = |
| 344 | { |
| 345 | 0x0d, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, |
| 346 | 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00 |
| 347 | }; |
| 348 | |
| 349 | /* application registers: */ |
| 350 | |
| 351 | #define AR_K0 0 |
| 352 | #define AR_K7 7 |
| 353 | #define AR_RSC 16 |
| 354 | #define AR_BSP 17 |
| 355 | #define AR_BSPSTORE 18 |
| 356 | #define AR_RNAT 19 |
| 357 | #define AR_FCR 21 |
| 358 | #define AR_EFLAG 24 |
| 359 | #define AR_CSD 25 |
| 360 | #define AR_SSD 26 |
| 361 | #define AR_CFLG 27 |
| 362 | #define AR_FSR 28 |
| 363 | #define AR_FIR 29 |
| 364 | #define AR_FDR 30 |
| 365 | #define AR_CCV 32 |
| 366 | #define AR_UNAT 36 |
| 367 | #define AR_FPSR 40 |
| 368 | #define AR_ITC 44 |
| 369 | #define AR_RUC 45 |
| 370 | #define AR_PFS 64 |
| 371 | #define AR_LC 65 |
| 372 | #define AR_EC 66 |
| 373 | |
| 374 | static const struct |
| 375 | { |
| 376 | const char *name; |
| 377 | unsigned int regnum; |
| 378 | } |
| 379 | ar[] = |
| 380 | { |
| 381 | {"ar.k0", AR_K0}, {"ar.k1", AR_K0 + 1}, |
| 382 | {"ar.k2", AR_K0 + 2}, {"ar.k3", AR_K0 + 3}, |
| 383 | {"ar.k4", AR_K0 + 4}, {"ar.k5", AR_K0 + 5}, |
| 384 | {"ar.k6", AR_K0 + 6}, {"ar.k7", AR_K7}, |
| 385 | {"ar.rsc", AR_RSC}, {"ar.bsp", AR_BSP}, |
| 386 | {"ar.bspstore", AR_BSPSTORE}, {"ar.rnat", AR_RNAT}, |
| 387 | {"ar.fcr", AR_FCR}, {"ar.eflag", AR_EFLAG}, |
| 388 | {"ar.csd", AR_CSD}, {"ar.ssd", AR_SSD}, |
| 389 | {"ar.cflg", AR_CFLG}, {"ar.fsr", AR_FSR}, |
| 390 | {"ar.fir", AR_FIR}, {"ar.fdr", AR_FDR}, |
| 391 | {"ar.ccv", AR_CCV}, {"ar.unat", AR_UNAT}, |
| 392 | {"ar.fpsr", AR_FPSR}, {"ar.itc", AR_ITC}, |
| 393 | {"ar.ruc", AR_RUC}, {"ar.pfs", AR_PFS}, |
| 394 | {"ar.lc", AR_LC}, {"ar.ec", AR_EC}, |
| 395 | }; |
| 396 | |
| 397 | /* control registers: */ |
| 398 | |
| 399 | #define CR_DCR 0 |
| 400 | #define CR_ITM 1 |
| 401 | #define CR_IVA 2 |
| 402 | #define CR_PTA 8 |
| 403 | #define CR_GPTA 9 |
| 404 | #define CR_IPSR 16 |
| 405 | #define CR_ISR 17 |
| 406 | #define CR_IIP 19 |
| 407 | #define CR_IFA 20 |
| 408 | #define CR_ITIR 21 |
| 409 | #define CR_IIPA 22 |
| 410 | #define CR_IFS 23 |
| 411 | #define CR_IIM 24 |
| 412 | #define CR_IHA 25 |
| 413 | #define CR_IIB0 26 |
| 414 | #define CR_IIB1 27 |
| 415 | #define CR_LID 64 |
| 416 | #define CR_IVR 65 |
| 417 | #define CR_TPR 66 |
| 418 | #define CR_EOI 67 |
| 419 | #define CR_IRR0 68 |
| 420 | #define CR_IRR3 71 |
| 421 | #define CR_ITV 72 |
| 422 | #define CR_PMV 73 |
| 423 | #define CR_CMCV 74 |
| 424 | #define CR_LRR0 80 |
| 425 | #define CR_LRR1 81 |
| 426 | |
| 427 | static const struct |
| 428 | { |
| 429 | const char *name; |
| 430 | unsigned int regnum; |
| 431 | } |
| 432 | cr[] = |
| 433 | { |
| 434 | {"cr.dcr", CR_DCR}, |
| 435 | {"cr.itm", CR_ITM}, |
| 436 | {"cr.iva", CR_IVA}, |
| 437 | {"cr.pta", CR_PTA}, |
| 438 | {"cr.gpta", CR_GPTA}, |
| 439 | {"cr.ipsr", CR_IPSR}, |
| 440 | {"cr.isr", CR_ISR}, |
| 441 | {"cr.iip", CR_IIP}, |
| 442 | {"cr.ifa", CR_IFA}, |
| 443 | {"cr.itir", CR_ITIR}, |
| 444 | {"cr.iipa", CR_IIPA}, |
| 445 | {"cr.ifs", CR_IFS}, |
| 446 | {"cr.iim", CR_IIM}, |
| 447 | {"cr.iha", CR_IHA}, |
| 448 | {"cr.iib0", CR_IIB0}, |
| 449 | {"cr.iib1", CR_IIB1}, |
| 450 | {"cr.lid", CR_LID}, |
| 451 | {"cr.ivr", CR_IVR}, |
| 452 | {"cr.tpr", CR_TPR}, |
| 453 | {"cr.eoi", CR_EOI}, |
| 454 | {"cr.irr0", CR_IRR0}, |
| 455 | {"cr.irr1", CR_IRR0 + 1}, |
| 456 | {"cr.irr2", CR_IRR0 + 2}, |
| 457 | {"cr.irr3", CR_IRR3}, |
| 458 | {"cr.itv", CR_ITV}, |
| 459 | {"cr.pmv", CR_PMV}, |
| 460 | {"cr.cmcv", CR_CMCV}, |
| 461 | {"cr.lrr0", CR_LRR0}, |
| 462 | {"cr.lrr1", CR_LRR1} |
| 463 | }; |
| 464 | |
| 465 | #define PSR_MFL 4 |
| 466 | #define PSR_IC 13 |
| 467 | #define PSR_DFL 18 |
| 468 | #define PSR_CPL 32 |
| 469 | |
| 470 | static const struct const_desc |
| 471 | { |
| 472 | const char *name; |
| 473 | valueT value; |
| 474 | } |
| 475 | const_bits[] = |
| 476 | { |
| 477 | /* PSR constant masks: */ |
| 478 | |
| 479 | /* 0: reserved */ |
| 480 | {"psr.be", ((valueT) 1) << 1}, |
| 481 | {"psr.up", ((valueT) 1) << 2}, |
| 482 | {"psr.ac", ((valueT) 1) << 3}, |
| 483 | {"psr.mfl", ((valueT) 1) << 4}, |
| 484 | {"psr.mfh", ((valueT) 1) << 5}, |
| 485 | /* 6-12: reserved */ |
| 486 | {"psr.ic", ((valueT) 1) << 13}, |
| 487 | {"psr.i", ((valueT) 1) << 14}, |
| 488 | {"psr.pk", ((valueT) 1) << 15}, |
| 489 | /* 16: reserved */ |
| 490 | {"psr.dt", ((valueT) 1) << 17}, |
| 491 | {"psr.dfl", ((valueT) 1) << 18}, |
| 492 | {"psr.dfh", ((valueT) 1) << 19}, |
| 493 | {"psr.sp", ((valueT) 1) << 20}, |
| 494 | {"psr.pp", ((valueT) 1) << 21}, |
| 495 | {"psr.di", ((valueT) 1) << 22}, |
| 496 | {"psr.si", ((valueT) 1) << 23}, |
| 497 | {"psr.db", ((valueT) 1) << 24}, |
| 498 | {"psr.lp", ((valueT) 1) << 25}, |
| 499 | {"psr.tb", ((valueT) 1) << 26}, |
| 500 | {"psr.rt", ((valueT) 1) << 27}, |
| 501 | /* 28-31: reserved */ |
| 502 | /* 32-33: cpl (current privilege level) */ |
| 503 | {"psr.is", ((valueT) 1) << 34}, |
| 504 | {"psr.mc", ((valueT) 1) << 35}, |
| 505 | {"psr.it", ((valueT) 1) << 36}, |
| 506 | {"psr.id", ((valueT) 1) << 37}, |
| 507 | {"psr.da", ((valueT) 1) << 38}, |
| 508 | {"psr.dd", ((valueT) 1) << 39}, |
| 509 | {"psr.ss", ((valueT) 1) << 40}, |
| 510 | /* 41-42: ri (restart instruction) */ |
| 511 | {"psr.ed", ((valueT) 1) << 43}, |
| 512 | {"psr.bn", ((valueT) 1) << 44}, |
| 513 | }; |
| 514 | |
| 515 | /* indirect register-sets/memory: */ |
| 516 | |
| 517 | static const struct |
| 518 | { |
| 519 | const char *name; |
| 520 | unsigned int regnum; |
| 521 | } |
| 522 | indirect_reg[] = |
| 523 | { |
| 524 | { "CPUID", IND_CPUID }, |
| 525 | { "cpuid", IND_CPUID }, |
| 526 | { "dbr", IND_DBR }, |
| 527 | { "dtr", IND_DTR }, |
| 528 | { "itr", IND_ITR }, |
| 529 | { "ibr", IND_IBR }, |
| 530 | { "msr", IND_MSR }, |
| 531 | { "pkr", IND_PKR }, |
| 532 | { "pmc", IND_PMC }, |
| 533 | { "pmd", IND_PMD }, |
| 534 | { "rr", IND_RR }, |
| 535 | }; |
| 536 | |
| 537 | /* Pseudo functions used to indicate relocation types (these functions |
| 538 | start with an at sign (@). */ |
| 539 | static struct |
| 540 | { |
| 541 | const char *name; |
| 542 | enum pseudo_type |
| 543 | { |
| 544 | PSEUDO_FUNC_NONE, |
| 545 | PSEUDO_FUNC_RELOC, |
| 546 | PSEUDO_FUNC_CONST, |
| 547 | PSEUDO_FUNC_REG, |
| 548 | PSEUDO_FUNC_FLOAT |
| 549 | } |
| 550 | type; |
| 551 | union |
| 552 | { |
| 553 | unsigned long ival; |
| 554 | symbolS *sym; |
| 555 | } |
| 556 | u; |
| 557 | } |
| 558 | pseudo_func[] = |
| 559 | { |
| 560 | /* reloc pseudo functions (these must come first!): */ |
| 561 | { "dtpmod", PSEUDO_FUNC_RELOC, { 0 } }, |
| 562 | { "dtprel", PSEUDO_FUNC_RELOC, { 0 } }, |
| 563 | { "fptr", PSEUDO_FUNC_RELOC, { 0 } }, |
| 564 | { "gprel", PSEUDO_FUNC_RELOC, { 0 } }, |
| 565 | { "ltoff", PSEUDO_FUNC_RELOC, { 0 } }, |
| 566 | { "ltoffx", PSEUDO_FUNC_RELOC, { 0 } }, |
| 567 | { "pcrel", PSEUDO_FUNC_RELOC, { 0 } }, |
| 568 | { "pltoff", PSEUDO_FUNC_RELOC, { 0 } }, |
| 569 | { "secrel", PSEUDO_FUNC_RELOC, { 0 } }, |
| 570 | { "segrel", PSEUDO_FUNC_RELOC, { 0 } }, |
| 571 | { "tprel", PSEUDO_FUNC_RELOC, { 0 } }, |
| 572 | { "ltv", PSEUDO_FUNC_RELOC, { 0 } }, |
| 573 | { NULL, 0, { 0 } }, /* placeholder for FUNC_LT_FPTR_RELATIVE */ |
| 574 | { NULL, 0, { 0 } }, /* placeholder for FUNC_LT_DTP_MODULE */ |
| 575 | { NULL, 0, { 0 } }, /* placeholder for FUNC_LT_DTP_RELATIVE */ |
| 576 | { NULL, 0, { 0 } }, /* placeholder for FUNC_LT_TP_RELATIVE */ |
| 577 | { "iplt", PSEUDO_FUNC_RELOC, { 0 } }, |
| 578 | |
| 579 | /* mbtype4 constants: */ |
| 580 | { "alt", PSEUDO_FUNC_CONST, { 0xa } }, |
| 581 | { "brcst", PSEUDO_FUNC_CONST, { 0x0 } }, |
| 582 | { "mix", PSEUDO_FUNC_CONST, { 0x8 } }, |
| 583 | { "rev", PSEUDO_FUNC_CONST, { 0xb } }, |
| 584 | { "shuf", PSEUDO_FUNC_CONST, { 0x9 } }, |
| 585 | |
| 586 | /* fclass constants: */ |
| 587 | { "nat", PSEUDO_FUNC_CONST, { 0x100 } }, |
| 588 | { "qnan", PSEUDO_FUNC_CONST, { 0x080 } }, |
| 589 | { "snan", PSEUDO_FUNC_CONST, { 0x040 } }, |
| 590 | { "pos", PSEUDO_FUNC_CONST, { 0x001 } }, |
| 591 | { "neg", PSEUDO_FUNC_CONST, { 0x002 } }, |
| 592 | { "zero", PSEUDO_FUNC_CONST, { 0x004 } }, |
| 593 | { "unorm", PSEUDO_FUNC_CONST, { 0x008 } }, |
| 594 | { "norm", PSEUDO_FUNC_CONST, { 0x010 } }, |
| 595 | { "inf", PSEUDO_FUNC_CONST, { 0x020 } }, |
| 596 | |
| 597 | { "natval", PSEUDO_FUNC_CONST, { 0x100 } }, /* old usage */ |
| 598 | |
| 599 | /* hint constants: */ |
| 600 | { "pause", PSEUDO_FUNC_CONST, { 0x0 } }, |
| 601 | |
| 602 | /* unwind-related constants: */ |
| 603 | { "svr4", PSEUDO_FUNC_CONST, { ELFOSABI_NONE } }, |
| 604 | { "hpux", PSEUDO_FUNC_CONST, { ELFOSABI_HPUX } }, |
| 605 | { "nt", PSEUDO_FUNC_CONST, { 2 } }, /* conflicts w/ELFOSABI_NETBSD */ |
| 606 | { "linux", PSEUDO_FUNC_CONST, { ELFOSABI_LINUX } }, |
| 607 | { "freebsd", PSEUDO_FUNC_CONST, { ELFOSABI_FREEBSD } }, |
| 608 | { "openvms", PSEUDO_FUNC_CONST, { ELFOSABI_OPENVMS } }, |
| 609 | { "nsk", PSEUDO_FUNC_CONST, { ELFOSABI_NSK } }, |
| 610 | |
| 611 | /* unwind-related registers: */ |
| 612 | { "priunat",PSEUDO_FUNC_REG, { REG_PRIUNAT } } |
| 613 | }; |
| 614 | |
| 615 | /* 41-bit nop opcodes (one per unit): */ |
| 616 | static const bfd_vma nop[IA64_NUM_UNITS] = |
| 617 | { |
| 618 | 0x0000000000LL, /* NIL => break 0 */ |
| 619 | 0x0008000000LL, /* I-unit nop */ |
| 620 | 0x0008000000LL, /* M-unit nop */ |
| 621 | 0x4000000000LL, /* B-unit nop */ |
| 622 | 0x0008000000LL, /* F-unit nop */ |
| 623 | 0x0000000000LL, /* L-"unit" nop immediate */ |
| 624 | 0x0008000000LL, /* X-unit nop */ |
| 625 | }; |
| 626 | |
| 627 | /* Can't be `const' as it's passed to input routines (which have the |
| 628 | habit of setting temporary sentinels. */ |
| 629 | static char special_section_name[][20] = |
| 630 | { |
| 631 | {".bss"}, {".sbss"}, {".sdata"}, {".rodata"}, {".comment"}, |
| 632 | {".IA_64.unwind"}, {".IA_64.unwind_info"}, |
| 633 | {".init_array"}, {".fini_array"} |
| 634 | }; |
| 635 | |
| 636 | /* The best template for a particular sequence of up to three |
| 637 | instructions: */ |
| 638 | #define N IA64_NUM_TYPES |
| 639 | static unsigned char best_template[N][N][N]; |
| 640 | #undef N |
| 641 | |
| 642 | /* Resource dependencies currently in effect */ |
| 643 | static struct rsrc { |
| 644 | int depind; /* dependency index */ |
| 645 | const struct ia64_dependency *dependency; /* actual dependency */ |
| 646 | unsigned specific:1, /* is this a specific bit/regno? */ |
| 647 | link_to_qp_branch:1; /* will a branch on the same QP clear it?*/ |
| 648 | int index; /* specific regno/bit within dependency */ |
| 649 | int note; /* optional qualifying note (0 if none) */ |
| 650 | #define STATE_NONE 0 |
| 651 | #define STATE_STOP 1 |
| 652 | #define STATE_SRLZ 2 |
| 653 | int insn_srlz; /* current insn serialization state */ |
| 654 | int data_srlz; /* current data serialization state */ |
| 655 | int qp_regno; /* qualifying predicate for this usage */ |
| 656 | char *file; /* what file marked this dependency */ |
| 657 | unsigned int line; /* what line marked this dependency */ |
| 658 | struct mem_offset mem_offset; /* optional memory offset hint */ |
| 659 | enum { CMP_NONE, CMP_OR, CMP_AND } cmp_type; /* OR or AND compare? */ |
| 660 | int path; /* corresponding code entry index */ |
| 661 | } *regdeps = NULL; |
| 662 | static int regdepslen = 0; |
| 663 | static int regdepstotlen = 0; |
| 664 | static const char *dv_mode[] = { "RAW", "WAW", "WAR" }; |
| 665 | static const char *dv_sem[] = { "none", "implied", "impliedf", |
| 666 | "data", "instr", "specific", "stop", "other" }; |
| 667 | static const char *dv_cmp_type[] = { "none", "OR", "AND" }; |
| 668 | |
| 669 | /* Current state of PR mutexation */ |
| 670 | static struct qpmutex { |
| 671 | valueT prmask; |
| 672 | int path; |
| 673 | } *qp_mutexes = NULL; /* QP mutex bitmasks */ |
| 674 | static int qp_mutexeslen = 0; |
| 675 | static int qp_mutexestotlen = 0; |
| 676 | static valueT qp_safe_across_calls = 0; |
| 677 | |
| 678 | /* Current state of PR implications */ |
| 679 | static struct qp_imply { |
| 680 | unsigned p1:6; |
| 681 | unsigned p2:6; |
| 682 | unsigned p2_branched:1; |
| 683 | int path; |
| 684 | } *qp_implies = NULL; |
| 685 | static int qp_implieslen = 0; |
| 686 | static int qp_impliestotlen = 0; |
| 687 | |
| 688 | /* Keep track of static GR values so that indirect register usage can |
| 689 | sometimes be tracked. */ |
| 690 | static struct gr { |
| 691 | unsigned known:1; |
| 692 | int path; |
| 693 | valueT value; |
| 694 | } gr_values[128] = { |
| 695 | { |
| 696 | 1, |
| 697 | #ifdef INT_MAX |
| 698 | INT_MAX, |
| 699 | #else |
| 700 | (((1 << (8 * sizeof(gr_values->path) - 2)) - 1) << 1) + 1, |
| 701 | #endif |
| 702 | 0 |
| 703 | } |
| 704 | }; |
| 705 | |
| 706 | /* Remember the alignment frag. */ |
| 707 | static fragS *align_frag; |
| 708 | |
| 709 | /* These are the routines required to output the various types of |
| 710 | unwind records. */ |
| 711 | |
| 712 | /* A slot_number is a frag address plus the slot index (0-2). We use the |
| 713 | frag address here so that if there is a section switch in the middle of |
| 714 | a function, then instructions emitted to a different section are not |
| 715 | counted. Since there may be more than one frag for a function, this |
| 716 | means we also need to keep track of which frag this address belongs to |
| 717 | so we can compute inter-frag distances. This also nicely solves the |
| 718 | problem with nops emitted for align directives, which can't easily be |
| 719 | counted, but can easily be derived from frag sizes. */ |
| 720 | |
| 721 | typedef struct unw_rec_list { |
| 722 | unwind_record r; |
| 723 | unsigned long slot_number; |
| 724 | fragS *slot_frag; |
| 725 | struct unw_rec_list *next; |
| 726 | } unw_rec_list; |
| 727 | |
| 728 | #define SLOT_NUM_NOT_SET (unsigned)-1 |
| 729 | |
| 730 | /* Linked list of saved prologue counts. A very poor |
| 731 | implementation of a map from label numbers to prologue counts. */ |
| 732 | typedef struct label_prologue_count |
| 733 | { |
| 734 | struct label_prologue_count *next; |
| 735 | unsigned long label_number; |
| 736 | unsigned int prologue_count; |
| 737 | } label_prologue_count; |
| 738 | |
| 739 | typedef struct proc_pending |
| 740 | { |
| 741 | symbolS *sym; |
| 742 | struct proc_pending *next; |
| 743 | } proc_pending; |
| 744 | |
| 745 | static struct |
| 746 | { |
| 747 | /* Maintain a list of unwind entries for the current function. */ |
| 748 | unw_rec_list *list; |
| 749 | unw_rec_list *tail; |
| 750 | |
| 751 | /* Any unwind entries that should be attached to the current slot |
| 752 | that an insn is being constructed for. */ |
| 753 | unw_rec_list *current_entry; |
| 754 | |
| 755 | /* These are used to create the unwind table entry for this function. */ |
| 756 | proc_pending proc_pending; |
| 757 | symbolS *info; /* pointer to unwind info */ |
| 758 | symbolS *personality_routine; |
| 759 | segT saved_text_seg; |
| 760 | subsegT saved_text_subseg; |
| 761 | unsigned int force_unwind_entry : 1; /* force generation of unwind entry? */ |
| 762 | |
| 763 | /* TRUE if processing unwind directives in a prologue region. */ |
| 764 | unsigned int prologue : 1; |
| 765 | unsigned int prologue_mask : 4; |
| 766 | unsigned int prologue_gr : 7; |
| 767 | unsigned int body : 1; |
| 768 | unsigned int insn : 1; |
| 769 | unsigned int prologue_count; /* number of .prologues seen so far */ |
| 770 | /* Prologue counts at previous .label_state directives. */ |
| 771 | struct label_prologue_count * saved_prologue_counts; |
| 772 | |
| 773 | /* List of split up .save-s. */ |
| 774 | unw_p_record *pending_saves; |
| 775 | } unwind; |
| 776 | |
| 777 | /* The input value is a negated offset from psp, and specifies an address |
| 778 | psp - offset. The encoded value is psp + 16 - (4 * offset). Thus we |
| 779 | must add 16 and divide by 4 to get the encoded value. */ |
| 780 | |
| 781 | #define ENCODED_PSP_OFFSET(OFFSET) (((OFFSET) + 16) / 4) |
| 782 | |
| 783 | typedef void (*vbyte_func) (int, char *, char *); |
| 784 | |
| 785 | /* Forward declarations: */ |
| 786 | static void dot_alias (int); |
| 787 | static int parse_operand_and_eval (expressionS *, int); |
| 788 | static void emit_one_bundle (void); |
| 789 | static bfd_reloc_code_real_type ia64_gen_real_reloc_type (struct symbol *, |
| 790 | bfd_reloc_code_real_type); |
| 791 | static void insn_group_break (int, int, int); |
| 792 | static void add_qp_mutex (valueT); |
| 793 | static void add_qp_imply (int, int); |
| 794 | static void clear_qp_mutex (valueT); |
| 795 | static void clear_qp_implies (valueT, valueT); |
| 796 | static void print_dependency (const char *, int); |
| 797 | static void instruction_serialization (void); |
| 798 | static void data_serialization (void); |
| 799 | static void output_R3_format (vbyte_func, unw_record_type, unsigned long); |
| 800 | static void output_B3_format (vbyte_func, unsigned long, unsigned long); |
| 801 | static void output_B4_format (vbyte_func, unw_record_type, unsigned long); |
| 802 | static void free_saved_prologue_counts (void); |
| 803 | |
| 804 | /* Determine if application register REGNUM resides only in the integer |
| 805 | unit (as opposed to the memory unit). */ |
| 806 | static int |
| 807 | ar_is_only_in_integer_unit (int reg) |
| 808 | { |
| 809 | reg -= REG_AR; |
| 810 | return reg >= 64 && reg <= 111; |
| 811 | } |
| 812 | |
| 813 | /* Determine if application register REGNUM resides only in the memory |
| 814 | unit (as opposed to the integer unit). */ |
| 815 | static int |
| 816 | ar_is_only_in_memory_unit (int reg) |
| 817 | { |
| 818 | reg -= REG_AR; |
| 819 | return reg >= 0 && reg <= 47; |
| 820 | } |
| 821 | |
| 822 | /* Switch to section NAME and create section if necessary. It's |
| 823 | rather ugly that we have to manipulate input_line_pointer but I |
| 824 | don't see any other way to accomplish the same thing without |
| 825 | changing obj-elf.c (which may be the Right Thing, in the end). */ |
| 826 | static void |
| 827 | set_section (char *name) |
| 828 | { |
| 829 | char *saved_input_line_pointer; |
| 830 | |
| 831 | saved_input_line_pointer = input_line_pointer; |
| 832 | input_line_pointer = name; |
| 833 | obj_elf_section (0); |
| 834 | input_line_pointer = saved_input_line_pointer; |
| 835 | } |
| 836 | |
| 837 | /* Map 's' to SHF_IA_64_SHORT. */ |
| 838 | |
| 839 | bfd_vma |
| 840 | ia64_elf_section_letter (int letter, char **ptr_msg) |
| 841 | { |
| 842 | if (letter == 's') |
| 843 | return SHF_IA_64_SHORT; |
| 844 | else if (letter == 'o') |
| 845 | return SHF_LINK_ORDER; |
| 846 | #ifdef TE_VMS |
| 847 | else if (letter == 'O') |
| 848 | return SHF_IA_64_VMS_OVERLAID; |
| 849 | else if (letter == 'g') |
| 850 | return SHF_IA_64_VMS_GLOBAL; |
| 851 | #endif |
| 852 | |
| 853 | *ptr_msg = _("Bad .section directive: want a,o,s,w,x,M,S,G,T in string"); |
| 854 | return -1; |
| 855 | } |
| 856 | |
| 857 | /* Map SHF_IA_64_SHORT to SEC_SMALL_DATA. */ |
| 858 | |
| 859 | flagword |
| 860 | ia64_elf_section_flags (flagword flags, |
| 861 | bfd_vma attr, |
| 862 | int type ATTRIBUTE_UNUSED) |
| 863 | { |
| 864 | if (attr & SHF_IA_64_SHORT) |
| 865 | flags |= SEC_SMALL_DATA; |
| 866 | return flags; |
| 867 | } |
| 868 | |
| 869 | int |
| 870 | ia64_elf_section_type (const char *str, size_t len) |
| 871 | { |
| 872 | #define STREQ(s) ((len == sizeof (s) - 1) && (strncmp (str, s, sizeof (s) - 1) == 0)) |
| 873 | |
| 874 | if (STREQ (ELF_STRING_ia64_unwind_info)) |
| 875 | return SHT_PROGBITS; |
| 876 | |
| 877 | if (STREQ (ELF_STRING_ia64_unwind_info_once)) |
| 878 | return SHT_PROGBITS; |
| 879 | |
| 880 | if (STREQ (ELF_STRING_ia64_unwind)) |
| 881 | return SHT_IA_64_UNWIND; |
| 882 | |
| 883 | if (STREQ (ELF_STRING_ia64_unwind_once)) |
| 884 | return SHT_IA_64_UNWIND; |
| 885 | |
| 886 | if (STREQ ("unwind")) |
| 887 | return SHT_IA_64_UNWIND; |
| 888 | |
| 889 | return -1; |
| 890 | #undef STREQ |
| 891 | } |
| 892 | |
| 893 | static unsigned int |
| 894 | set_regstack (unsigned int ins, |
| 895 | unsigned int locs, |
| 896 | unsigned int outs, |
| 897 | unsigned int rots) |
| 898 | { |
| 899 | /* Size of frame. */ |
| 900 | unsigned int sof; |
| 901 | |
| 902 | sof = ins + locs + outs; |
| 903 | if (sof > 96) |
| 904 | { |
| 905 | as_bad (_("Size of frame exceeds maximum of 96 registers")); |
| 906 | return 0; |
| 907 | } |
| 908 | if (rots > sof) |
| 909 | { |
| 910 | as_warn (_("Size of rotating registers exceeds frame size")); |
| 911 | return 0; |
| 912 | } |
| 913 | md.in.base = REG_GR + 32; |
| 914 | md.loc.base = md.in.base + ins; |
| 915 | md.out.base = md.loc.base + locs; |
| 916 | |
| 917 | md.in.num_regs = ins; |
| 918 | md.loc.num_regs = locs; |
| 919 | md.out.num_regs = outs; |
| 920 | md.rot.num_regs = rots; |
| 921 | return sof; |
| 922 | } |
| 923 | |
| 924 | void |
| 925 | ia64_flush_insns (void) |
| 926 | { |
| 927 | struct label_fix *lfix; |
| 928 | segT saved_seg; |
| 929 | subsegT saved_subseg; |
| 930 | unw_rec_list *ptr; |
| 931 | bfd_boolean mark; |
| 932 | |
| 933 | if (!md.last_text_seg) |
| 934 | return; |
| 935 | |
| 936 | saved_seg = now_seg; |
| 937 | saved_subseg = now_subseg; |
| 938 | |
| 939 | subseg_set (md.last_text_seg, 0); |
| 940 | |
| 941 | while (md.num_slots_in_use > 0) |
| 942 | emit_one_bundle (); /* force out queued instructions */ |
| 943 | |
| 944 | /* In case there are labels following the last instruction, resolve |
| 945 | those now. */ |
| 946 | mark = FALSE; |
| 947 | for (lfix = CURR_SLOT.label_fixups; lfix; lfix = lfix->next) |
| 948 | { |
| 949 | symbol_set_value_now (lfix->sym); |
| 950 | mark |= lfix->dw2_mark_labels; |
| 951 | } |
| 952 | if (mark) |
| 953 | { |
| 954 | dwarf2_where (&CURR_SLOT.debug_line); |
| 955 | CURR_SLOT.debug_line.flags |= DWARF2_FLAG_BASIC_BLOCK; |
| 956 | dwarf2_gen_line_info (frag_now_fix (), &CURR_SLOT.debug_line); |
| 957 | dwarf2_consume_line_info (); |
| 958 | } |
| 959 | CURR_SLOT.label_fixups = 0; |
| 960 | |
| 961 | for (lfix = CURR_SLOT.tag_fixups; lfix; lfix = lfix->next) |
| 962 | symbol_set_value_now (lfix->sym); |
| 963 | CURR_SLOT.tag_fixups = 0; |
| 964 | |
| 965 | /* In case there are unwind directives following the last instruction, |
| 966 | resolve those now. We only handle prologue, body, and endp directives |
| 967 | here. Give an error for others. */ |
| 968 | for (ptr = unwind.current_entry; ptr; ptr = ptr->next) |
| 969 | { |
| 970 | switch (ptr->r.type) |
| 971 | { |
| 972 | case prologue: |
| 973 | case prologue_gr: |
| 974 | case body: |
| 975 | case endp: |
| 976 | ptr->slot_number = (unsigned long) frag_more (0); |
| 977 | ptr->slot_frag = frag_now; |
| 978 | break; |
| 979 | |
| 980 | /* Allow any record which doesn't have a "t" field (i.e., |
| 981 | doesn't relate to a particular instruction). */ |
| 982 | case unwabi: |
| 983 | case br_gr: |
| 984 | case copy_state: |
| 985 | case fr_mem: |
| 986 | case frgr_mem: |
| 987 | case gr_gr: |
| 988 | case gr_mem: |
| 989 | case label_state: |
| 990 | case rp_br: |
| 991 | case spill_base: |
| 992 | case spill_mask: |
| 993 | /* nothing */ |
| 994 | break; |
| 995 | |
| 996 | default: |
| 997 | as_bad (_("Unwind directive not followed by an instruction.")); |
| 998 | break; |
| 999 | } |
| 1000 | } |
| 1001 | unwind.current_entry = NULL; |
| 1002 | |
| 1003 | subseg_set (saved_seg, saved_subseg); |
| 1004 | |
| 1005 | if (md.qp.X_op == O_register) |
| 1006 | as_bad (_("qualifying predicate not followed by instruction")); |
| 1007 | } |
| 1008 | |
| 1009 | static void |
| 1010 | ia64_do_align (int nbytes) |
| 1011 | { |
| 1012 | char *saved_input_line_pointer = input_line_pointer; |
| 1013 | |
| 1014 | input_line_pointer = ""; |
| 1015 | s_align_bytes (nbytes); |
| 1016 | input_line_pointer = saved_input_line_pointer; |
| 1017 | } |
| 1018 | |
| 1019 | void |
| 1020 | ia64_cons_align (int nbytes) |
| 1021 | { |
| 1022 | if (md.auto_align) |
| 1023 | { |
| 1024 | char *saved_input_line_pointer = input_line_pointer; |
| 1025 | input_line_pointer = ""; |
| 1026 | s_align_bytes (nbytes); |
| 1027 | input_line_pointer = saved_input_line_pointer; |
| 1028 | } |
| 1029 | } |
| 1030 | |
| 1031 | /* Output COUNT bytes to a memory location. */ |
| 1032 | static char *vbyte_mem_ptr = NULL; |
| 1033 | |
| 1034 | static void |
| 1035 | output_vbyte_mem (int count, char *ptr, char *comment ATTRIBUTE_UNUSED) |
| 1036 | { |
| 1037 | int x; |
| 1038 | if (vbyte_mem_ptr == NULL) |
| 1039 | abort (); |
| 1040 | |
| 1041 | if (count == 0) |
| 1042 | return; |
| 1043 | for (x = 0; x < count; x++) |
| 1044 | *(vbyte_mem_ptr++) = ptr[x]; |
| 1045 | } |
| 1046 | |
| 1047 | /* Count the number of bytes required for records. */ |
| 1048 | static int vbyte_count = 0; |
| 1049 | static void |
| 1050 | count_output (int count, |
| 1051 | char *ptr ATTRIBUTE_UNUSED, |
| 1052 | char *comment ATTRIBUTE_UNUSED) |
| 1053 | { |
| 1054 | vbyte_count += count; |
| 1055 | } |
| 1056 | |
| 1057 | static void |
| 1058 | output_R1_format (vbyte_func f, unw_record_type rtype, int rlen) |
| 1059 | { |
| 1060 | int r = 0; |
| 1061 | char byte; |
| 1062 | if (rlen > 0x1f) |
| 1063 | { |
| 1064 | output_R3_format (f, rtype, rlen); |
| 1065 | return; |
| 1066 | } |
| 1067 | |
| 1068 | if (rtype == body) |
| 1069 | r = 1; |
| 1070 | else if (rtype != prologue) |
| 1071 | as_bad (_("record type is not valid")); |
| 1072 | |
| 1073 | byte = UNW_R1 | (r << 5) | (rlen & 0x1f); |
| 1074 | (*f) (1, &byte, NULL); |
| 1075 | } |
| 1076 | |
| 1077 | static void |
| 1078 | output_R2_format (vbyte_func f, int mask, int grsave, unsigned long rlen) |
| 1079 | { |
| 1080 | char bytes[20]; |
| 1081 | int count = 2; |
| 1082 | mask = (mask & 0x0f); |
| 1083 | grsave = (grsave & 0x7f); |
| 1084 | |
| 1085 | bytes[0] = (UNW_R2 | (mask >> 1)); |
| 1086 | bytes[1] = (((mask & 0x01) << 7) | grsave); |
| 1087 | count += output_leb128 (bytes + 2, rlen, 0); |
| 1088 | (*f) (count, bytes, NULL); |
| 1089 | } |
| 1090 | |
| 1091 | static void |
| 1092 | output_R3_format (vbyte_func f, unw_record_type rtype, unsigned long rlen) |
| 1093 | { |
| 1094 | int r = 0, count; |
| 1095 | char bytes[20]; |
| 1096 | if (rlen <= 0x1f) |
| 1097 | { |
| 1098 | output_R1_format (f, rtype, rlen); |
| 1099 | return; |
| 1100 | } |
| 1101 | |
| 1102 | if (rtype == body) |
| 1103 | r = 1; |
| 1104 | else if (rtype != prologue) |
| 1105 | as_bad (_("record type is not valid")); |
| 1106 | bytes[0] = (UNW_R3 | r); |
| 1107 | count = output_leb128 (bytes + 1, rlen, 0); |
| 1108 | (*f) (count + 1, bytes, NULL); |
| 1109 | } |
| 1110 | |
| 1111 | static void |
| 1112 | output_P1_format (vbyte_func f, int brmask) |
| 1113 | { |
| 1114 | char byte; |
| 1115 | byte = UNW_P1 | (brmask & 0x1f); |
| 1116 | (*f) (1, &byte, NULL); |
| 1117 | } |
| 1118 | |
| 1119 | static void |
| 1120 | output_P2_format (vbyte_func f, int brmask, int gr) |
| 1121 | { |
| 1122 | char bytes[2]; |
| 1123 | brmask = (brmask & 0x1f); |
| 1124 | bytes[0] = UNW_P2 | (brmask >> 1); |
| 1125 | bytes[1] = (((brmask & 1) << 7) | gr); |
| 1126 | (*f) (2, bytes, NULL); |
| 1127 | } |
| 1128 | |
| 1129 | static void |
| 1130 | output_P3_format (vbyte_func f, unw_record_type rtype, int reg) |
| 1131 | { |
| 1132 | char bytes[2]; |
| 1133 | int r = 0; |
| 1134 | reg = (reg & 0x7f); |
| 1135 | switch (rtype) |
| 1136 | { |
| 1137 | case psp_gr: |
| 1138 | r = 0; |
| 1139 | break; |
| 1140 | case rp_gr: |
| 1141 | r = 1; |
| 1142 | break; |
| 1143 | case pfs_gr: |
| 1144 | r = 2; |
| 1145 | break; |
| 1146 | case preds_gr: |
| 1147 | r = 3; |
| 1148 | break; |
| 1149 | case unat_gr: |
| 1150 | r = 4; |
| 1151 | break; |
| 1152 | case lc_gr: |
| 1153 | r = 5; |
| 1154 | break; |
| 1155 | case rp_br: |
| 1156 | r = 6; |
| 1157 | break; |
| 1158 | case rnat_gr: |
| 1159 | r = 7; |
| 1160 | break; |
| 1161 | case bsp_gr: |
| 1162 | r = 8; |
| 1163 | break; |
| 1164 | case bspstore_gr: |
| 1165 | r = 9; |
| 1166 | break; |
| 1167 | case fpsr_gr: |
| 1168 | r = 10; |
| 1169 | break; |
| 1170 | case priunat_gr: |
| 1171 | r = 11; |
| 1172 | break; |
| 1173 | default: |
| 1174 | as_bad (_("Invalid record type for P3 format.")); |
| 1175 | } |
| 1176 | bytes[0] = (UNW_P3 | (r >> 1)); |
| 1177 | bytes[1] = (((r & 1) << 7) | reg); |
| 1178 | (*f) (2, bytes, NULL); |
| 1179 | } |
| 1180 | |
| 1181 | static void |
| 1182 | output_P4_format (vbyte_func f, unsigned char *imask, unsigned long imask_size) |
| 1183 | { |
| 1184 | imask[0] = UNW_P4; |
| 1185 | (*f) (imask_size, (char *) imask, NULL); |
| 1186 | } |
| 1187 | |
| 1188 | static void |
| 1189 | output_P5_format (vbyte_func f, int grmask, unsigned long frmask) |
| 1190 | { |
| 1191 | char bytes[4]; |
| 1192 | grmask = (grmask & 0x0f); |
| 1193 | |
| 1194 | bytes[0] = UNW_P5; |
| 1195 | bytes[1] = ((grmask << 4) | ((frmask & 0x000f0000) >> 16)); |
| 1196 | bytes[2] = ((frmask & 0x0000ff00) >> 8); |
| 1197 | bytes[3] = (frmask & 0x000000ff); |
| 1198 | (*f) (4, bytes, NULL); |
| 1199 | } |
| 1200 | |
| 1201 | static void |
| 1202 | output_P6_format (vbyte_func f, unw_record_type rtype, int rmask) |
| 1203 | { |
| 1204 | char byte; |
| 1205 | int r = 0; |
| 1206 | |
| 1207 | if (rtype == gr_mem) |
| 1208 | r = 1; |
| 1209 | else if (rtype != fr_mem) |
| 1210 | as_bad (_("Invalid record type for format P6")); |
| 1211 | byte = (UNW_P6 | (r << 4) | (rmask & 0x0f)); |
| 1212 | (*f) (1, &byte, NULL); |
| 1213 | } |
| 1214 | |
| 1215 | static void |
| 1216 | output_P7_format (vbyte_func f, |
| 1217 | unw_record_type rtype, |
| 1218 | unsigned long w1, |
| 1219 | unsigned long w2) |
| 1220 | { |
| 1221 | char bytes[20]; |
| 1222 | int count = 1; |
| 1223 | int r = 0; |
| 1224 | count += output_leb128 (bytes + 1, w1, 0); |
| 1225 | switch (rtype) |
| 1226 | { |
| 1227 | case mem_stack_f: |
| 1228 | r = 0; |
| 1229 | count += output_leb128 (bytes + count, w2 >> 4, 0); |
| 1230 | break; |
| 1231 | case mem_stack_v: |
| 1232 | r = 1; |
| 1233 | break; |
| 1234 | case spill_base: |
| 1235 | r = 2; |
| 1236 | break; |
| 1237 | case psp_sprel: |
| 1238 | r = 3; |
| 1239 | break; |
| 1240 | case rp_when: |
| 1241 | r = 4; |
| 1242 | break; |
| 1243 | case rp_psprel: |
| 1244 | r = 5; |
| 1245 | break; |
| 1246 | case pfs_when: |
| 1247 | r = 6; |
| 1248 | break; |
| 1249 | case pfs_psprel: |
| 1250 | r = 7; |
| 1251 | break; |
| 1252 | case preds_when: |
| 1253 | r = 8; |
| 1254 | break; |
| 1255 | case preds_psprel: |
| 1256 | r = 9; |
| 1257 | break; |
| 1258 | case lc_when: |
| 1259 | r = 10; |
| 1260 | break; |
| 1261 | case lc_psprel: |
| 1262 | r = 11; |
| 1263 | break; |
| 1264 | case unat_when: |
| 1265 | r = 12; |
| 1266 | break; |
| 1267 | case unat_psprel: |
| 1268 | r = 13; |
| 1269 | break; |
| 1270 | case fpsr_when: |
| 1271 | r = 14; |
| 1272 | break; |
| 1273 | case fpsr_psprel: |
| 1274 | r = 15; |
| 1275 | break; |
| 1276 | default: |
| 1277 | break; |
| 1278 | } |
| 1279 | bytes[0] = (UNW_P7 | r); |
| 1280 | (*f) (count, bytes, NULL); |
| 1281 | } |
| 1282 | |
| 1283 | static void |
| 1284 | output_P8_format (vbyte_func f, unw_record_type rtype, unsigned long t) |
| 1285 | { |
| 1286 | char bytes[20]; |
| 1287 | int r = 0; |
| 1288 | int count = 2; |
| 1289 | bytes[0] = UNW_P8; |
| 1290 | switch (rtype) |
| 1291 | { |
| 1292 | case rp_sprel: |
| 1293 | r = 1; |
| 1294 | break; |
| 1295 | case pfs_sprel: |
| 1296 | r = 2; |
| 1297 | break; |
| 1298 | case preds_sprel: |
| 1299 | r = 3; |
| 1300 | break; |
| 1301 | case lc_sprel: |
| 1302 | r = 4; |
| 1303 | break; |
| 1304 | case unat_sprel: |
| 1305 | r = 5; |
| 1306 | break; |
| 1307 | case fpsr_sprel: |
| 1308 | r = 6; |
| 1309 | break; |
| 1310 | case bsp_when: |
| 1311 | r = 7; |
| 1312 | break; |
| 1313 | case bsp_psprel: |
| 1314 | r = 8; |
| 1315 | break; |
| 1316 | case bsp_sprel: |
| 1317 | r = 9; |
| 1318 | break; |
| 1319 | case bspstore_when: |
| 1320 | r = 10; |
| 1321 | break; |
| 1322 | case bspstore_psprel: |
| 1323 | r = 11; |
| 1324 | break; |
| 1325 | case bspstore_sprel: |
| 1326 | r = 12; |
| 1327 | break; |
| 1328 | case rnat_when: |
| 1329 | r = 13; |
| 1330 | break; |
| 1331 | case rnat_psprel: |
| 1332 | r = 14; |
| 1333 | break; |
| 1334 | case rnat_sprel: |
| 1335 | r = 15; |
| 1336 | break; |
| 1337 | case priunat_when_gr: |
| 1338 | r = 16; |
| 1339 | break; |
| 1340 | case priunat_psprel: |
| 1341 | r = 17; |
| 1342 | break; |
| 1343 | case priunat_sprel: |
| 1344 | r = 18; |
| 1345 | break; |
| 1346 | case priunat_when_mem: |
| 1347 | r = 19; |
| 1348 | break; |
| 1349 | default: |
| 1350 | break; |
| 1351 | } |
| 1352 | bytes[1] = r; |
| 1353 | count += output_leb128 (bytes + 2, t, 0); |
| 1354 | (*f) (count, bytes, NULL); |
| 1355 | } |
| 1356 | |
| 1357 | static void |
| 1358 | output_P9_format (vbyte_func f, int grmask, int gr) |
| 1359 | { |
| 1360 | char bytes[3]; |
| 1361 | bytes[0] = UNW_P9; |
| 1362 | bytes[1] = (grmask & 0x0f); |
| 1363 | bytes[2] = (gr & 0x7f); |
| 1364 | (*f) (3, bytes, NULL); |
| 1365 | } |
| 1366 | |
| 1367 | static void |
| 1368 | output_P10_format (vbyte_func f, int abi, int context) |
| 1369 | { |
| 1370 | char bytes[3]; |
| 1371 | bytes[0] = UNW_P10; |
| 1372 | bytes[1] = (abi & 0xff); |
| 1373 | bytes[2] = (context & 0xff); |
| 1374 | (*f) (3, bytes, NULL); |
| 1375 | } |
| 1376 | |
| 1377 | static void |
| 1378 | output_B1_format (vbyte_func f, unw_record_type rtype, unsigned long label) |
| 1379 | { |
| 1380 | char byte; |
| 1381 | int r = 0; |
| 1382 | if (label > 0x1f) |
| 1383 | { |
| 1384 | output_B4_format (f, rtype, label); |
| 1385 | return; |
| 1386 | } |
| 1387 | if (rtype == copy_state) |
| 1388 | r = 1; |
| 1389 | else if (rtype != label_state) |
| 1390 | as_bad (_("Invalid record type for format B1")); |
| 1391 | |
| 1392 | byte = (UNW_B1 | (r << 5) | (label & 0x1f)); |
| 1393 | (*f) (1, &byte, NULL); |
| 1394 | } |
| 1395 | |
| 1396 | static void |
| 1397 | output_B2_format (vbyte_func f, unsigned long ecount, unsigned long t) |
| 1398 | { |
| 1399 | char bytes[20]; |
| 1400 | int count = 1; |
| 1401 | if (ecount > 0x1f) |
| 1402 | { |
| 1403 | output_B3_format (f, ecount, t); |
| 1404 | return; |
| 1405 | } |
| 1406 | bytes[0] = (UNW_B2 | (ecount & 0x1f)); |
| 1407 | count += output_leb128 (bytes + 1, t, 0); |
| 1408 | (*f) (count, bytes, NULL); |
| 1409 | } |
| 1410 | |
| 1411 | static void |
| 1412 | output_B3_format (vbyte_func f, unsigned long ecount, unsigned long t) |
| 1413 | { |
| 1414 | char bytes[20]; |
| 1415 | int count = 1; |
| 1416 | if (ecount <= 0x1f) |
| 1417 | { |
| 1418 | output_B2_format (f, ecount, t); |
| 1419 | return; |
| 1420 | } |
| 1421 | bytes[0] = UNW_B3; |
| 1422 | count += output_leb128 (bytes + 1, t, 0); |
| 1423 | count += output_leb128 (bytes + count, ecount, 0); |
| 1424 | (*f) (count, bytes, NULL); |
| 1425 | } |
| 1426 | |
| 1427 | static void |
| 1428 | output_B4_format (vbyte_func f, unw_record_type rtype, unsigned long label) |
| 1429 | { |
| 1430 | char bytes[20]; |
| 1431 | int r = 0; |
| 1432 | int count = 1; |
| 1433 | if (label <= 0x1f) |
| 1434 | { |
| 1435 | output_B1_format (f, rtype, label); |
| 1436 | return; |
| 1437 | } |
| 1438 | |
| 1439 | if (rtype == copy_state) |
| 1440 | r = 1; |
| 1441 | else if (rtype != label_state) |
| 1442 | as_bad (_("Invalid record type for format B1")); |
| 1443 | |
| 1444 | bytes[0] = (UNW_B4 | (r << 3)); |
| 1445 | count += output_leb128 (bytes + 1, label, 0); |
| 1446 | (*f) (count, bytes, NULL); |
| 1447 | } |
| 1448 | |
| 1449 | static char |
| 1450 | format_ab_reg (int ab, int reg) |
| 1451 | { |
| 1452 | int ret; |
| 1453 | ab = (ab & 3); |
| 1454 | reg = (reg & 0x1f); |
| 1455 | ret = (ab << 5) | reg; |
| 1456 | return ret; |
| 1457 | } |
| 1458 | |
| 1459 | static void |
| 1460 | output_X1_format (vbyte_func f, |
| 1461 | unw_record_type rtype, |
| 1462 | int ab, |
| 1463 | int reg, |
| 1464 | unsigned long t, |
| 1465 | unsigned long w1) |
| 1466 | { |
| 1467 | char bytes[20]; |
| 1468 | int r = 0; |
| 1469 | int count = 2; |
| 1470 | bytes[0] = UNW_X1; |
| 1471 | |
| 1472 | if (rtype == spill_sprel) |
| 1473 | r = 1; |
| 1474 | else if (rtype != spill_psprel) |
| 1475 | as_bad (_("Invalid record type for format X1")); |
| 1476 | bytes[1] = ((r << 7) | format_ab_reg (ab, reg)); |
| 1477 | count += output_leb128 (bytes + 2, t, 0); |
| 1478 | count += output_leb128 (bytes + count, w1, 0); |
| 1479 | (*f) (count, bytes, NULL); |
| 1480 | } |
| 1481 | |
| 1482 | static void |
| 1483 | output_X2_format (vbyte_func f, |
| 1484 | int ab, |
| 1485 | int reg, |
| 1486 | int x, |
| 1487 | int y, |
| 1488 | int treg, |
| 1489 | unsigned long t) |
| 1490 | { |
| 1491 | char bytes[20]; |
| 1492 | int count = 3; |
| 1493 | bytes[0] = UNW_X2; |
| 1494 | bytes[1] = (((x & 1) << 7) | format_ab_reg (ab, reg)); |
| 1495 | bytes[2] = (((y & 1) << 7) | (treg & 0x7f)); |
| 1496 | count += output_leb128 (bytes + 3, t, 0); |
| 1497 | (*f) (count, bytes, NULL); |
| 1498 | } |
| 1499 | |
| 1500 | static void |
| 1501 | output_X3_format (vbyte_func f, |
| 1502 | unw_record_type rtype, |
| 1503 | int qp, |
| 1504 | int ab, |
| 1505 | int reg, |
| 1506 | unsigned long t, |
| 1507 | unsigned long w1) |
| 1508 | { |
| 1509 | char bytes[20]; |
| 1510 | int r = 0; |
| 1511 | int count = 3; |
| 1512 | bytes[0] = UNW_X3; |
| 1513 | |
| 1514 | if (rtype == spill_sprel_p) |
| 1515 | r = 1; |
| 1516 | else if (rtype != spill_psprel_p) |
| 1517 | as_bad (_("Invalid record type for format X3")); |
| 1518 | bytes[1] = ((r << 7) | (qp & 0x3f)); |
| 1519 | bytes[2] = format_ab_reg (ab, reg); |
| 1520 | count += output_leb128 (bytes + 3, t, 0); |
| 1521 | count += output_leb128 (bytes + count, w1, 0); |
| 1522 | (*f) (count, bytes, NULL); |
| 1523 | } |
| 1524 | |
| 1525 | static void |
| 1526 | output_X4_format (vbyte_func f, |
| 1527 | int qp, |
| 1528 | int ab, |
| 1529 | int reg, |
| 1530 | int x, |
| 1531 | int y, |
| 1532 | int treg, |
| 1533 | unsigned long t) |
| 1534 | { |
| 1535 | char bytes[20]; |
| 1536 | int count = 4; |
| 1537 | bytes[0] = UNW_X4; |
| 1538 | bytes[1] = (qp & 0x3f); |
| 1539 | bytes[2] = (((x & 1) << 7) | format_ab_reg (ab, reg)); |
| 1540 | bytes[3] = (((y & 1) << 7) | (treg & 0x7f)); |
| 1541 | count += output_leb128 (bytes + 4, t, 0); |
| 1542 | (*f) (count, bytes, NULL); |
| 1543 | } |
| 1544 | |
| 1545 | /* This function checks whether there are any outstanding .save-s and |
| 1546 | discards them if so. */ |
| 1547 | |
| 1548 | static void |
| 1549 | check_pending_save (void) |
| 1550 | { |
| 1551 | if (unwind.pending_saves) |
| 1552 | { |
| 1553 | unw_rec_list *cur, *prev; |
| 1554 | |
| 1555 | as_warn (_("Previous .save incomplete")); |
| 1556 | for (cur = unwind.list, prev = NULL; cur; ) |
| 1557 | if (&cur->r.record.p == unwind.pending_saves) |
| 1558 | { |
| 1559 | if (prev) |
| 1560 | prev->next = cur->next; |
| 1561 | else |
| 1562 | unwind.list = cur->next; |
| 1563 | if (cur == unwind.tail) |
| 1564 | unwind.tail = prev; |
| 1565 | if (cur == unwind.current_entry) |
| 1566 | unwind.current_entry = cur->next; |
| 1567 | /* Don't free the first discarded record, it's being used as |
| 1568 | terminator for (currently) br_gr and gr_gr processing, and |
| 1569 | also prevents leaving a dangling pointer to it in its |
| 1570 | predecessor. */ |
| 1571 | cur->r.record.p.grmask = 0; |
| 1572 | cur->r.record.p.brmask = 0; |
| 1573 | cur->r.record.p.frmask = 0; |
| 1574 | prev = cur->r.record.p.next; |
| 1575 | cur->r.record.p.next = NULL; |
| 1576 | cur = prev; |
| 1577 | break; |
| 1578 | } |
| 1579 | else |
| 1580 | { |
| 1581 | prev = cur; |
| 1582 | cur = cur->next; |
| 1583 | } |
| 1584 | while (cur) |
| 1585 | { |
| 1586 | prev = cur; |
| 1587 | cur = cur->r.record.p.next; |
| 1588 | free (prev); |
| 1589 | } |
| 1590 | unwind.pending_saves = NULL; |
| 1591 | } |
| 1592 | } |
| 1593 | |
| 1594 | /* This function allocates a record list structure, and initializes fields. */ |
| 1595 | |
| 1596 | static unw_rec_list * |
| 1597 | alloc_record (unw_record_type t) |
| 1598 | { |
| 1599 | unw_rec_list *ptr; |
| 1600 | ptr = xmalloc (sizeof (*ptr)); |
| 1601 | memset (ptr, 0, sizeof (*ptr)); |
| 1602 | ptr->slot_number = SLOT_NUM_NOT_SET; |
| 1603 | ptr->r.type = t; |
| 1604 | return ptr; |
| 1605 | } |
| 1606 | |
| 1607 | /* Dummy unwind record used for calculating the length of the last prologue or |
| 1608 | body region. */ |
| 1609 | |
| 1610 | static unw_rec_list * |
| 1611 | output_endp (void) |
| 1612 | { |
| 1613 | unw_rec_list *ptr = alloc_record (endp); |
| 1614 | return ptr; |
| 1615 | } |
| 1616 | |
| 1617 | static unw_rec_list * |
| 1618 | output_prologue (void) |
| 1619 | { |
| 1620 | unw_rec_list *ptr = alloc_record (prologue); |
| 1621 | memset (&ptr->r.record.r.mask, 0, sizeof (ptr->r.record.r.mask)); |
| 1622 | return ptr; |
| 1623 | } |
| 1624 | |
| 1625 | static unw_rec_list * |
| 1626 | output_prologue_gr (unsigned int saved_mask, unsigned int reg) |
| 1627 | { |
| 1628 | unw_rec_list *ptr = alloc_record (prologue_gr); |
| 1629 | memset (&ptr->r.record.r.mask, 0, sizeof (ptr->r.record.r.mask)); |
| 1630 | ptr->r.record.r.grmask = saved_mask; |
| 1631 | ptr->r.record.r.grsave = reg; |
| 1632 | return ptr; |
| 1633 | } |
| 1634 | |
| 1635 | static unw_rec_list * |
| 1636 | output_body (void) |
| 1637 | { |
| 1638 | unw_rec_list *ptr = alloc_record (body); |
| 1639 | return ptr; |
| 1640 | } |
| 1641 | |
| 1642 | static unw_rec_list * |
| 1643 | output_mem_stack_f (unsigned int size) |
| 1644 | { |
| 1645 | unw_rec_list *ptr = alloc_record (mem_stack_f); |
| 1646 | ptr->r.record.p.size = size; |
| 1647 | return ptr; |
| 1648 | } |
| 1649 | |
| 1650 | static unw_rec_list * |
| 1651 | output_mem_stack_v (void) |
| 1652 | { |
| 1653 | unw_rec_list *ptr = alloc_record (mem_stack_v); |
| 1654 | return ptr; |
| 1655 | } |
| 1656 | |
| 1657 | static unw_rec_list * |
| 1658 | output_psp_gr (unsigned int gr) |
| 1659 | { |
| 1660 | unw_rec_list *ptr = alloc_record (psp_gr); |
| 1661 | ptr->r.record.p.r.gr = gr; |
| 1662 | return ptr; |
| 1663 | } |
| 1664 | |
| 1665 | static unw_rec_list * |
| 1666 | output_psp_sprel (unsigned int offset) |
| 1667 | { |
| 1668 | unw_rec_list *ptr = alloc_record (psp_sprel); |
| 1669 | ptr->r.record.p.off.sp = offset / 4; |
| 1670 | return ptr; |
| 1671 | } |
| 1672 | |
| 1673 | static unw_rec_list * |
| 1674 | output_rp_when (void) |
| 1675 | { |
| 1676 | unw_rec_list *ptr = alloc_record (rp_when); |
| 1677 | return ptr; |
| 1678 | } |
| 1679 | |
| 1680 | static unw_rec_list * |
| 1681 | output_rp_gr (unsigned int gr) |
| 1682 | { |
| 1683 | unw_rec_list *ptr = alloc_record (rp_gr); |
| 1684 | ptr->r.record.p.r.gr = gr; |
| 1685 | return ptr; |
| 1686 | } |
| 1687 | |
| 1688 | static unw_rec_list * |
| 1689 | output_rp_br (unsigned int br) |
| 1690 | { |
| 1691 | unw_rec_list *ptr = alloc_record (rp_br); |
| 1692 | ptr->r.record.p.r.br = br; |
| 1693 | return ptr; |
| 1694 | } |
| 1695 | |
| 1696 | static unw_rec_list * |
| 1697 | output_rp_psprel (unsigned int offset) |
| 1698 | { |
| 1699 | unw_rec_list *ptr = alloc_record (rp_psprel); |
| 1700 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 1701 | return ptr; |
| 1702 | } |
| 1703 | |
| 1704 | static unw_rec_list * |
| 1705 | output_rp_sprel (unsigned int offset) |
| 1706 | { |
| 1707 | unw_rec_list *ptr = alloc_record (rp_sprel); |
| 1708 | ptr->r.record.p.off.sp = offset / 4; |
| 1709 | return ptr; |
| 1710 | } |
| 1711 | |
| 1712 | static unw_rec_list * |
| 1713 | output_pfs_when (void) |
| 1714 | { |
| 1715 | unw_rec_list *ptr = alloc_record (pfs_when); |
| 1716 | return ptr; |
| 1717 | } |
| 1718 | |
| 1719 | static unw_rec_list * |
| 1720 | output_pfs_gr (unsigned int gr) |
| 1721 | { |
| 1722 | unw_rec_list *ptr = alloc_record (pfs_gr); |
| 1723 | ptr->r.record.p.r.gr = gr; |
| 1724 | return ptr; |
| 1725 | } |
| 1726 | |
| 1727 | static unw_rec_list * |
| 1728 | output_pfs_psprel (unsigned int offset) |
| 1729 | { |
| 1730 | unw_rec_list *ptr = alloc_record (pfs_psprel); |
| 1731 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 1732 | return ptr; |
| 1733 | } |
| 1734 | |
| 1735 | static unw_rec_list * |
| 1736 | output_pfs_sprel (unsigned int offset) |
| 1737 | { |
| 1738 | unw_rec_list *ptr = alloc_record (pfs_sprel); |
| 1739 | ptr->r.record.p.off.sp = offset / 4; |
| 1740 | return ptr; |
| 1741 | } |
| 1742 | |
| 1743 | static unw_rec_list * |
| 1744 | output_preds_when (void) |
| 1745 | { |
| 1746 | unw_rec_list *ptr = alloc_record (preds_when); |
| 1747 | return ptr; |
| 1748 | } |
| 1749 | |
| 1750 | static unw_rec_list * |
| 1751 | output_preds_gr (unsigned int gr) |
| 1752 | { |
| 1753 | unw_rec_list *ptr = alloc_record (preds_gr); |
| 1754 | ptr->r.record.p.r.gr = gr; |
| 1755 | return ptr; |
| 1756 | } |
| 1757 | |
| 1758 | static unw_rec_list * |
| 1759 | output_preds_psprel (unsigned int offset) |
| 1760 | { |
| 1761 | unw_rec_list *ptr = alloc_record (preds_psprel); |
| 1762 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 1763 | return ptr; |
| 1764 | } |
| 1765 | |
| 1766 | static unw_rec_list * |
| 1767 | output_preds_sprel (unsigned int offset) |
| 1768 | { |
| 1769 | unw_rec_list *ptr = alloc_record (preds_sprel); |
| 1770 | ptr->r.record.p.off.sp = offset / 4; |
| 1771 | return ptr; |
| 1772 | } |
| 1773 | |
| 1774 | static unw_rec_list * |
| 1775 | output_fr_mem (unsigned int mask) |
| 1776 | { |
| 1777 | unw_rec_list *ptr = alloc_record (fr_mem); |
| 1778 | unw_rec_list *cur = ptr; |
| 1779 | |
| 1780 | ptr->r.record.p.frmask = mask; |
| 1781 | unwind.pending_saves = &ptr->r.record.p; |
| 1782 | for (;;) |
| 1783 | { |
| 1784 | unw_rec_list *prev = cur; |
| 1785 | |
| 1786 | /* Clear least significant set bit. */ |
| 1787 | mask &= ~(mask & (~mask + 1)); |
| 1788 | if (!mask) |
| 1789 | return ptr; |
| 1790 | cur = alloc_record (fr_mem); |
| 1791 | cur->r.record.p.frmask = mask; |
| 1792 | /* Retain only least significant bit. */ |
| 1793 | prev->r.record.p.frmask ^= mask; |
| 1794 | prev->r.record.p.next = cur; |
| 1795 | } |
| 1796 | } |
| 1797 | |
| 1798 | static unw_rec_list * |
| 1799 | output_frgr_mem (unsigned int gr_mask, unsigned int fr_mask) |
| 1800 | { |
| 1801 | unw_rec_list *ptr = alloc_record (frgr_mem); |
| 1802 | unw_rec_list *cur = ptr; |
| 1803 | |
| 1804 | unwind.pending_saves = &cur->r.record.p; |
| 1805 | cur->r.record.p.frmask = fr_mask; |
| 1806 | while (fr_mask) |
| 1807 | { |
| 1808 | unw_rec_list *prev = cur; |
| 1809 | |
| 1810 | /* Clear least significant set bit. */ |
| 1811 | fr_mask &= ~(fr_mask & (~fr_mask + 1)); |
| 1812 | if (!gr_mask && !fr_mask) |
| 1813 | return ptr; |
| 1814 | cur = alloc_record (frgr_mem); |
| 1815 | cur->r.record.p.frmask = fr_mask; |
| 1816 | /* Retain only least significant bit. */ |
| 1817 | prev->r.record.p.frmask ^= fr_mask; |
| 1818 | prev->r.record.p.next = cur; |
| 1819 | } |
| 1820 | cur->r.record.p.grmask = gr_mask; |
| 1821 | for (;;) |
| 1822 | { |
| 1823 | unw_rec_list *prev = cur; |
| 1824 | |
| 1825 | /* Clear least significant set bit. */ |
| 1826 | gr_mask &= ~(gr_mask & (~gr_mask + 1)); |
| 1827 | if (!gr_mask) |
| 1828 | return ptr; |
| 1829 | cur = alloc_record (frgr_mem); |
| 1830 | cur->r.record.p.grmask = gr_mask; |
| 1831 | /* Retain only least significant bit. */ |
| 1832 | prev->r.record.p.grmask ^= gr_mask; |
| 1833 | prev->r.record.p.next = cur; |
| 1834 | } |
| 1835 | } |
| 1836 | |
| 1837 | static unw_rec_list * |
| 1838 | output_gr_gr (unsigned int mask, unsigned int reg) |
| 1839 | { |
| 1840 | unw_rec_list *ptr = alloc_record (gr_gr); |
| 1841 | unw_rec_list *cur = ptr; |
| 1842 | |
| 1843 | ptr->r.record.p.grmask = mask; |
| 1844 | ptr->r.record.p.r.gr = reg; |
| 1845 | unwind.pending_saves = &ptr->r.record.p; |
| 1846 | for (;;) |
| 1847 | { |
| 1848 | unw_rec_list *prev = cur; |
| 1849 | |
| 1850 | /* Clear least significant set bit. */ |
| 1851 | mask &= ~(mask & (~mask + 1)); |
| 1852 | if (!mask) |
| 1853 | return ptr; |
| 1854 | cur = alloc_record (gr_gr); |
| 1855 | cur->r.record.p.grmask = mask; |
| 1856 | /* Indicate this record shouldn't be output. */ |
| 1857 | cur->r.record.p.r.gr = REG_NUM; |
| 1858 | /* Retain only least significant bit. */ |
| 1859 | prev->r.record.p.grmask ^= mask; |
| 1860 | prev->r.record.p.next = cur; |
| 1861 | } |
| 1862 | } |
| 1863 | |
| 1864 | static unw_rec_list * |
| 1865 | output_gr_mem (unsigned int mask) |
| 1866 | { |
| 1867 | unw_rec_list *ptr = alloc_record (gr_mem); |
| 1868 | unw_rec_list *cur = ptr; |
| 1869 | |
| 1870 | ptr->r.record.p.grmask = mask; |
| 1871 | unwind.pending_saves = &ptr->r.record.p; |
| 1872 | for (;;) |
| 1873 | { |
| 1874 | unw_rec_list *prev = cur; |
| 1875 | |
| 1876 | /* Clear least significant set bit. */ |
| 1877 | mask &= ~(mask & (~mask + 1)); |
| 1878 | if (!mask) |
| 1879 | return ptr; |
| 1880 | cur = alloc_record (gr_mem); |
| 1881 | cur->r.record.p.grmask = mask; |
| 1882 | /* Retain only least significant bit. */ |
| 1883 | prev->r.record.p.grmask ^= mask; |
| 1884 | prev->r.record.p.next = cur; |
| 1885 | } |
| 1886 | } |
| 1887 | |
| 1888 | static unw_rec_list * |
| 1889 | output_br_mem (unsigned int mask) |
| 1890 | { |
| 1891 | unw_rec_list *ptr = alloc_record (br_mem); |
| 1892 | unw_rec_list *cur = ptr; |
| 1893 | |
| 1894 | ptr->r.record.p.brmask = mask; |
| 1895 | unwind.pending_saves = &ptr->r.record.p; |
| 1896 | for (;;) |
| 1897 | { |
| 1898 | unw_rec_list *prev = cur; |
| 1899 | |
| 1900 | /* Clear least significant set bit. */ |
| 1901 | mask &= ~(mask & (~mask + 1)); |
| 1902 | if (!mask) |
| 1903 | return ptr; |
| 1904 | cur = alloc_record (br_mem); |
| 1905 | cur->r.record.p.brmask = mask; |
| 1906 | /* Retain only least significant bit. */ |
| 1907 | prev->r.record.p.brmask ^= mask; |
| 1908 | prev->r.record.p.next = cur; |
| 1909 | } |
| 1910 | } |
| 1911 | |
| 1912 | static unw_rec_list * |
| 1913 | output_br_gr (unsigned int mask, unsigned int reg) |
| 1914 | { |
| 1915 | unw_rec_list *ptr = alloc_record (br_gr); |
| 1916 | unw_rec_list *cur = ptr; |
| 1917 | |
| 1918 | ptr->r.record.p.brmask = mask; |
| 1919 | ptr->r.record.p.r.gr = reg; |
| 1920 | unwind.pending_saves = &ptr->r.record.p; |
| 1921 | for (;;) |
| 1922 | { |
| 1923 | unw_rec_list *prev = cur; |
| 1924 | |
| 1925 | /* Clear least significant set bit. */ |
| 1926 | mask &= ~(mask & (~mask + 1)); |
| 1927 | if (!mask) |
| 1928 | return ptr; |
| 1929 | cur = alloc_record (br_gr); |
| 1930 | cur->r.record.p.brmask = mask; |
| 1931 | /* Indicate this record shouldn't be output. */ |
| 1932 | cur->r.record.p.r.gr = REG_NUM; |
| 1933 | /* Retain only least significant bit. */ |
| 1934 | prev->r.record.p.brmask ^= mask; |
| 1935 | prev->r.record.p.next = cur; |
| 1936 | } |
| 1937 | } |
| 1938 | |
| 1939 | static unw_rec_list * |
| 1940 | output_spill_base (unsigned int offset) |
| 1941 | { |
| 1942 | unw_rec_list *ptr = alloc_record (spill_base); |
| 1943 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 1944 | return ptr; |
| 1945 | } |
| 1946 | |
| 1947 | static unw_rec_list * |
| 1948 | output_unat_when (void) |
| 1949 | { |
| 1950 | unw_rec_list *ptr = alloc_record (unat_when); |
| 1951 | return ptr; |
| 1952 | } |
| 1953 | |
| 1954 | static unw_rec_list * |
| 1955 | output_unat_gr (unsigned int gr) |
| 1956 | { |
| 1957 | unw_rec_list *ptr = alloc_record (unat_gr); |
| 1958 | ptr->r.record.p.r.gr = gr; |
| 1959 | return ptr; |
| 1960 | } |
| 1961 | |
| 1962 | static unw_rec_list * |
| 1963 | output_unat_psprel (unsigned int offset) |
| 1964 | { |
| 1965 | unw_rec_list *ptr = alloc_record (unat_psprel); |
| 1966 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 1967 | return ptr; |
| 1968 | } |
| 1969 | |
| 1970 | static unw_rec_list * |
| 1971 | output_unat_sprel (unsigned int offset) |
| 1972 | { |
| 1973 | unw_rec_list *ptr = alloc_record (unat_sprel); |
| 1974 | ptr->r.record.p.off.sp = offset / 4; |
| 1975 | return ptr; |
| 1976 | } |
| 1977 | |
| 1978 | static unw_rec_list * |
| 1979 | output_lc_when (void) |
| 1980 | { |
| 1981 | unw_rec_list *ptr = alloc_record (lc_when); |
| 1982 | return ptr; |
| 1983 | } |
| 1984 | |
| 1985 | static unw_rec_list * |
| 1986 | output_lc_gr (unsigned int gr) |
| 1987 | { |
| 1988 | unw_rec_list *ptr = alloc_record (lc_gr); |
| 1989 | ptr->r.record.p.r.gr = gr; |
| 1990 | return ptr; |
| 1991 | } |
| 1992 | |
| 1993 | static unw_rec_list * |
| 1994 | output_lc_psprel (unsigned int offset) |
| 1995 | { |
| 1996 | unw_rec_list *ptr = alloc_record (lc_psprel); |
| 1997 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 1998 | return ptr; |
| 1999 | } |
| 2000 | |
| 2001 | static unw_rec_list * |
| 2002 | output_lc_sprel (unsigned int offset) |
| 2003 | { |
| 2004 | unw_rec_list *ptr = alloc_record (lc_sprel); |
| 2005 | ptr->r.record.p.off.sp = offset / 4; |
| 2006 | return ptr; |
| 2007 | } |
| 2008 | |
| 2009 | static unw_rec_list * |
| 2010 | output_fpsr_when (void) |
| 2011 | { |
| 2012 | unw_rec_list *ptr = alloc_record (fpsr_when); |
| 2013 | return ptr; |
| 2014 | } |
| 2015 | |
| 2016 | static unw_rec_list * |
| 2017 | output_fpsr_gr (unsigned int gr) |
| 2018 | { |
| 2019 | unw_rec_list *ptr = alloc_record (fpsr_gr); |
| 2020 | ptr->r.record.p.r.gr = gr; |
| 2021 | return ptr; |
| 2022 | } |
| 2023 | |
| 2024 | static unw_rec_list * |
| 2025 | output_fpsr_psprel (unsigned int offset) |
| 2026 | { |
| 2027 | unw_rec_list *ptr = alloc_record (fpsr_psprel); |
| 2028 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 2029 | return ptr; |
| 2030 | } |
| 2031 | |
| 2032 | static unw_rec_list * |
| 2033 | output_fpsr_sprel (unsigned int offset) |
| 2034 | { |
| 2035 | unw_rec_list *ptr = alloc_record (fpsr_sprel); |
| 2036 | ptr->r.record.p.off.sp = offset / 4; |
| 2037 | return ptr; |
| 2038 | } |
| 2039 | |
| 2040 | static unw_rec_list * |
| 2041 | output_priunat_when_gr (void) |
| 2042 | { |
| 2043 | unw_rec_list *ptr = alloc_record (priunat_when_gr); |
| 2044 | return ptr; |
| 2045 | } |
| 2046 | |
| 2047 | static unw_rec_list * |
| 2048 | output_priunat_when_mem (void) |
| 2049 | { |
| 2050 | unw_rec_list *ptr = alloc_record (priunat_when_mem); |
| 2051 | return ptr; |
| 2052 | } |
| 2053 | |
| 2054 | static unw_rec_list * |
| 2055 | output_priunat_gr (unsigned int gr) |
| 2056 | { |
| 2057 | unw_rec_list *ptr = alloc_record (priunat_gr); |
| 2058 | ptr->r.record.p.r.gr = gr; |
| 2059 | return ptr; |
| 2060 | } |
| 2061 | |
| 2062 | static unw_rec_list * |
| 2063 | output_priunat_psprel (unsigned int offset) |
| 2064 | { |
| 2065 | unw_rec_list *ptr = alloc_record (priunat_psprel); |
| 2066 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 2067 | return ptr; |
| 2068 | } |
| 2069 | |
| 2070 | static unw_rec_list * |
| 2071 | output_priunat_sprel (unsigned int offset) |
| 2072 | { |
| 2073 | unw_rec_list *ptr = alloc_record (priunat_sprel); |
| 2074 | ptr->r.record.p.off.sp = offset / 4; |
| 2075 | return ptr; |
| 2076 | } |
| 2077 | |
| 2078 | static unw_rec_list * |
| 2079 | output_bsp_when (void) |
| 2080 | { |
| 2081 | unw_rec_list *ptr = alloc_record (bsp_when); |
| 2082 | return ptr; |
| 2083 | } |
| 2084 | |
| 2085 | static unw_rec_list * |
| 2086 | output_bsp_gr (unsigned int gr) |
| 2087 | { |
| 2088 | unw_rec_list *ptr = alloc_record (bsp_gr); |
| 2089 | ptr->r.record.p.r.gr = gr; |
| 2090 | return ptr; |
| 2091 | } |
| 2092 | |
| 2093 | static unw_rec_list * |
| 2094 | output_bsp_psprel (unsigned int offset) |
| 2095 | { |
| 2096 | unw_rec_list *ptr = alloc_record (bsp_psprel); |
| 2097 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 2098 | return ptr; |
| 2099 | } |
| 2100 | |
| 2101 | static unw_rec_list * |
| 2102 | output_bsp_sprel (unsigned int offset) |
| 2103 | { |
| 2104 | unw_rec_list *ptr = alloc_record (bsp_sprel); |
| 2105 | ptr->r.record.p.off.sp = offset / 4; |
| 2106 | return ptr; |
| 2107 | } |
| 2108 | |
| 2109 | static unw_rec_list * |
| 2110 | output_bspstore_when (void) |
| 2111 | { |
| 2112 | unw_rec_list *ptr = alloc_record (bspstore_when); |
| 2113 | return ptr; |
| 2114 | } |
| 2115 | |
| 2116 | static unw_rec_list * |
| 2117 | output_bspstore_gr (unsigned int gr) |
| 2118 | { |
| 2119 | unw_rec_list *ptr = alloc_record (bspstore_gr); |
| 2120 | ptr->r.record.p.r.gr = gr; |
| 2121 | return ptr; |
| 2122 | } |
| 2123 | |
| 2124 | static unw_rec_list * |
| 2125 | output_bspstore_psprel (unsigned int offset) |
| 2126 | { |
| 2127 | unw_rec_list *ptr = alloc_record (bspstore_psprel); |
| 2128 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 2129 | return ptr; |
| 2130 | } |
| 2131 | |
| 2132 | static unw_rec_list * |
| 2133 | output_bspstore_sprel (unsigned int offset) |
| 2134 | { |
| 2135 | unw_rec_list *ptr = alloc_record (bspstore_sprel); |
| 2136 | ptr->r.record.p.off.sp = offset / 4; |
| 2137 | return ptr; |
| 2138 | } |
| 2139 | |
| 2140 | static unw_rec_list * |
| 2141 | output_rnat_when (void) |
| 2142 | { |
| 2143 | unw_rec_list *ptr = alloc_record (rnat_when); |
| 2144 | return ptr; |
| 2145 | } |
| 2146 | |
| 2147 | static unw_rec_list * |
| 2148 | output_rnat_gr (unsigned int gr) |
| 2149 | { |
| 2150 | unw_rec_list *ptr = alloc_record (rnat_gr); |
| 2151 | ptr->r.record.p.r.gr = gr; |
| 2152 | return ptr; |
| 2153 | } |
| 2154 | |
| 2155 | static unw_rec_list * |
| 2156 | output_rnat_psprel (unsigned int offset) |
| 2157 | { |
| 2158 | unw_rec_list *ptr = alloc_record (rnat_psprel); |
| 2159 | ptr->r.record.p.off.psp = ENCODED_PSP_OFFSET (offset); |
| 2160 | return ptr; |
| 2161 | } |
| 2162 | |
| 2163 | static unw_rec_list * |
| 2164 | output_rnat_sprel (unsigned int offset) |
| 2165 | { |
| 2166 | unw_rec_list *ptr = alloc_record (rnat_sprel); |
| 2167 | ptr->r.record.p.off.sp = offset / 4; |
| 2168 | return ptr; |
| 2169 | } |
| 2170 | |
| 2171 | static unw_rec_list * |
| 2172 | output_unwabi (unsigned long abi, unsigned long context) |
| 2173 | { |
| 2174 | unw_rec_list *ptr = alloc_record (unwabi); |
| 2175 | ptr->r.record.p.abi = abi; |
| 2176 | ptr->r.record.p.context = context; |
| 2177 | return ptr; |
| 2178 | } |
| 2179 | |
| 2180 | static unw_rec_list * |
| 2181 | output_epilogue (unsigned long ecount) |
| 2182 | { |
| 2183 | unw_rec_list *ptr = alloc_record (epilogue); |
| 2184 | ptr->r.record.b.ecount = ecount; |
| 2185 | return ptr; |
| 2186 | } |
| 2187 | |
| 2188 | static unw_rec_list * |
| 2189 | output_label_state (unsigned long label) |
| 2190 | { |
| 2191 | unw_rec_list *ptr = alloc_record (label_state); |
| 2192 | ptr->r.record.b.label = label; |
| 2193 | return ptr; |
| 2194 | } |
| 2195 | |
| 2196 | static unw_rec_list * |
| 2197 | output_copy_state (unsigned long label) |
| 2198 | { |
| 2199 | unw_rec_list *ptr = alloc_record (copy_state); |
| 2200 | ptr->r.record.b.label = label; |
| 2201 | return ptr; |
| 2202 | } |
| 2203 | |
| 2204 | static unw_rec_list * |
| 2205 | output_spill_psprel (unsigned int ab, |
| 2206 | unsigned int reg, |
| 2207 | unsigned int offset, |
| 2208 | unsigned int predicate) |
| 2209 | { |
| 2210 | unw_rec_list *ptr = alloc_record (predicate ? spill_psprel_p : spill_psprel); |
| 2211 | ptr->r.record.x.ab = ab; |
| 2212 | ptr->r.record.x.reg = reg; |
| 2213 | ptr->r.record.x.where.pspoff = ENCODED_PSP_OFFSET (offset); |
| 2214 | ptr->r.record.x.qp = predicate; |
| 2215 | return ptr; |
| 2216 | } |
| 2217 | |
| 2218 | static unw_rec_list * |
| 2219 | output_spill_sprel (unsigned int ab, |
| 2220 | unsigned int reg, |
| 2221 | unsigned int offset, |
| 2222 | unsigned int predicate) |
| 2223 | { |
| 2224 | unw_rec_list *ptr = alloc_record (predicate ? spill_sprel_p : spill_sprel); |
| 2225 | ptr->r.record.x.ab = ab; |
| 2226 | ptr->r.record.x.reg = reg; |
| 2227 | ptr->r.record.x.where.spoff = offset / 4; |
| 2228 | ptr->r.record.x.qp = predicate; |
| 2229 | return ptr; |
| 2230 | } |
| 2231 | |
| 2232 | static unw_rec_list * |
| 2233 | output_spill_reg (unsigned int ab, |
| 2234 | unsigned int reg, |
| 2235 | unsigned int targ_reg, |
| 2236 | unsigned int xy, |
| 2237 | unsigned int predicate) |
| 2238 | { |
| 2239 | unw_rec_list *ptr = alloc_record (predicate ? spill_reg_p : spill_reg); |
| 2240 | ptr->r.record.x.ab = ab; |
| 2241 | ptr->r.record.x.reg = reg; |
| 2242 | ptr->r.record.x.where.reg = targ_reg; |
| 2243 | ptr->r.record.x.xy = xy; |
| 2244 | ptr->r.record.x.qp = predicate; |
| 2245 | return ptr; |
| 2246 | } |
| 2247 | |
| 2248 | /* Given a unw_rec_list process the correct format with the |
| 2249 | specified function. */ |
| 2250 | |
| 2251 | static void |
| 2252 | process_one_record (unw_rec_list *ptr, vbyte_func f) |
| 2253 | { |
| 2254 | unsigned int fr_mask, gr_mask; |
| 2255 | |
| 2256 | switch (ptr->r.type) |
| 2257 | { |
| 2258 | /* This is a dummy record that takes up no space in the output. */ |
| 2259 | case endp: |
| 2260 | break; |
| 2261 | |
| 2262 | case gr_mem: |
| 2263 | case fr_mem: |
| 2264 | case br_mem: |
| 2265 | case frgr_mem: |
| 2266 | /* These are taken care of by prologue/prologue_gr. */ |
| 2267 | break; |
| 2268 | |
| 2269 | case prologue_gr: |
| 2270 | case prologue: |
| 2271 | if (ptr->r.type == prologue_gr) |
| 2272 | output_R2_format (f, ptr->r.record.r.grmask, |
| 2273 | ptr->r.record.r.grsave, ptr->r.record.r.rlen); |
| 2274 | else |
| 2275 | output_R1_format (f, ptr->r.type, ptr->r.record.r.rlen); |
| 2276 | |
| 2277 | /* Output descriptor(s) for union of register spills (if any). */ |
| 2278 | gr_mask = ptr->r.record.r.mask.gr_mem; |
| 2279 | fr_mask = ptr->r.record.r.mask.fr_mem; |
| 2280 | if (fr_mask) |
| 2281 | { |
| 2282 | if ((fr_mask & ~0xfUL) == 0) |
| 2283 | output_P6_format (f, fr_mem, fr_mask); |
| 2284 | else |
| 2285 | { |
| 2286 | output_P5_format (f, gr_mask, fr_mask); |
| 2287 | gr_mask = 0; |
| 2288 | } |
| 2289 | } |
| 2290 | if (gr_mask) |
| 2291 | output_P6_format (f, gr_mem, gr_mask); |
| 2292 | if (ptr->r.record.r.mask.br_mem) |
| 2293 | output_P1_format (f, ptr->r.record.r.mask.br_mem); |
| 2294 | |
| 2295 | /* output imask descriptor if necessary: */ |
| 2296 | if (ptr->r.record.r.mask.i) |
| 2297 | output_P4_format (f, ptr->r.record.r.mask.i, |
| 2298 | ptr->r.record.r.imask_size); |
| 2299 | break; |
| 2300 | |
| 2301 | case body: |
| 2302 | output_R1_format (f, ptr->r.type, ptr->r.record.r.rlen); |
| 2303 | break; |
| 2304 | case mem_stack_f: |
| 2305 | case mem_stack_v: |
| 2306 | output_P7_format (f, ptr->r.type, ptr->r.record.p.t, |
| 2307 | ptr->r.record.p.size); |
| 2308 | break; |
| 2309 | case psp_gr: |
| 2310 | case rp_gr: |
| 2311 | case pfs_gr: |
| 2312 | case preds_gr: |
| 2313 | case unat_gr: |
| 2314 | case lc_gr: |
| 2315 | case fpsr_gr: |
| 2316 | case priunat_gr: |
| 2317 | case bsp_gr: |
| 2318 | case bspstore_gr: |
| 2319 | case rnat_gr: |
| 2320 | output_P3_format (f, ptr->r.type, ptr->r.record.p.r.gr); |
| 2321 | break; |
| 2322 | case rp_br: |
| 2323 | output_P3_format (f, rp_br, ptr->r.record.p.r.br); |
| 2324 | break; |
| 2325 | case psp_sprel: |
| 2326 | output_P7_format (f, psp_sprel, ptr->r.record.p.off.sp, 0); |
| 2327 | break; |
| 2328 | case rp_when: |
| 2329 | case pfs_when: |
| 2330 | case preds_when: |
| 2331 | case unat_when: |
| 2332 | case lc_when: |
| 2333 | case fpsr_when: |
| 2334 | output_P7_format (f, ptr->r.type, ptr->r.record.p.t, 0); |
| 2335 | break; |
| 2336 | case rp_psprel: |
| 2337 | case pfs_psprel: |
| 2338 | case preds_psprel: |
| 2339 | case unat_psprel: |
| 2340 | case lc_psprel: |
| 2341 | case fpsr_psprel: |
| 2342 | case spill_base: |
| 2343 | output_P7_format (f, ptr->r.type, ptr->r.record.p.off.psp, 0); |
| 2344 | break; |
| 2345 | case rp_sprel: |
| 2346 | case pfs_sprel: |
| 2347 | case preds_sprel: |
| 2348 | case unat_sprel: |
| 2349 | case lc_sprel: |
| 2350 | case fpsr_sprel: |
| 2351 | case priunat_sprel: |
| 2352 | case bsp_sprel: |
| 2353 | case bspstore_sprel: |
| 2354 | case rnat_sprel: |
| 2355 | output_P8_format (f, ptr->r.type, ptr->r.record.p.off.sp); |
| 2356 | break; |
| 2357 | case gr_gr: |
| 2358 | if (ptr->r.record.p.r.gr < REG_NUM) |
| 2359 | { |
| 2360 | const unw_rec_list *cur = ptr; |
| 2361 | |
| 2362 | gr_mask = cur->r.record.p.grmask; |
| 2363 | while ((cur = cur->r.record.p.next) != NULL) |
| 2364 | gr_mask |= cur->r.record.p.grmask; |
| 2365 | output_P9_format (f, gr_mask, ptr->r.record.p.r.gr); |
| 2366 | } |
| 2367 | break; |
| 2368 | case br_gr: |
| 2369 | if (ptr->r.record.p.r.gr < REG_NUM) |
| 2370 | { |
| 2371 | const unw_rec_list *cur = ptr; |
| 2372 | |
| 2373 | gr_mask = cur->r.record.p.brmask; |
| 2374 | while ((cur = cur->r.record.p.next) != NULL) |
| 2375 | gr_mask |= cur->r.record.p.brmask; |
| 2376 | output_P2_format (f, gr_mask, ptr->r.record.p.r.gr); |
| 2377 | } |
| 2378 | break; |
| 2379 | case spill_mask: |
| 2380 | as_bad (_("spill_mask record unimplemented.")); |
| 2381 | break; |
| 2382 | case priunat_when_gr: |
| 2383 | case priunat_when_mem: |
| 2384 | case bsp_when: |
| 2385 | case bspstore_when: |
| 2386 | case rnat_when: |
| 2387 | output_P8_format (f, ptr->r.type, ptr->r.record.p.t); |
| 2388 | break; |
| 2389 | case priunat_psprel: |
| 2390 | case bsp_psprel: |
| 2391 | case bspstore_psprel: |
| 2392 | case rnat_psprel: |
| 2393 | output_P8_format (f, ptr->r.type, ptr->r.record.p.off.psp); |
| 2394 | break; |
| 2395 | case unwabi: |
| 2396 | output_P10_format (f, ptr->r.record.p.abi, ptr->r.record.p.context); |
| 2397 | break; |
| 2398 | case epilogue: |
| 2399 | output_B3_format (f, ptr->r.record.b.ecount, ptr->r.record.b.t); |
| 2400 | break; |
| 2401 | case label_state: |
| 2402 | case copy_state: |
| 2403 | output_B4_format (f, ptr->r.type, ptr->r.record.b.label); |
| 2404 | break; |
| 2405 | case spill_psprel: |
| 2406 | output_X1_format (f, ptr->r.type, ptr->r.record.x.ab, |
| 2407 | ptr->r.record.x.reg, ptr->r.record.x.t, |
| 2408 | ptr->r.record.x.where.pspoff); |
| 2409 | break; |
| 2410 | case spill_sprel: |
| 2411 | output_X1_format (f, ptr->r.type, ptr->r.record.x.ab, |
| 2412 | ptr->r.record.x.reg, ptr->r.record.x.t, |
| 2413 | ptr->r.record.x.where.spoff); |
| 2414 | break; |
| 2415 | case spill_reg: |
| 2416 | output_X2_format (f, ptr->r.record.x.ab, ptr->r.record.x.reg, |
| 2417 | ptr->r.record.x.xy >> 1, ptr->r.record.x.xy, |
| 2418 | ptr->r.record.x.where.reg, ptr->r.record.x.t); |
| 2419 | break; |
| 2420 | case spill_psprel_p: |
| 2421 | output_X3_format (f, ptr->r.type, ptr->r.record.x.qp, |
| 2422 | ptr->r.record.x.ab, ptr->r.record.x.reg, |
| 2423 | ptr->r.record.x.t, ptr->r.record.x.where.pspoff); |
| 2424 | break; |
| 2425 | case spill_sprel_p: |
| 2426 | output_X3_format (f, ptr->r.type, ptr->r.record.x.qp, |
| 2427 | ptr->r.record.x.ab, ptr->r.record.x.reg, |
| 2428 | ptr->r.record.x.t, ptr->r.record.x.where.spoff); |
| 2429 | break; |
| 2430 | case spill_reg_p: |
| 2431 | output_X4_format (f, ptr->r.record.x.qp, ptr->r.record.x.ab, |
| 2432 | ptr->r.record.x.reg, ptr->r.record.x.xy >> 1, |
| 2433 | ptr->r.record.x.xy, ptr->r.record.x.where.reg, |
| 2434 | ptr->r.record.x.t); |
| 2435 | break; |
| 2436 | default: |
| 2437 | as_bad (_("record_type_not_valid")); |
| 2438 | break; |
| 2439 | } |
| 2440 | } |
| 2441 | |
| 2442 | /* Given a unw_rec_list list, process all the records with |
| 2443 | the specified function. */ |
| 2444 | static void |
| 2445 | process_unw_records (unw_rec_list *list, vbyte_func f) |
| 2446 | { |
| 2447 | unw_rec_list *ptr; |
| 2448 | for (ptr = list; ptr; ptr = ptr->next) |
| 2449 | process_one_record (ptr, f); |
| 2450 | } |
| 2451 | |
| 2452 | /* Determine the size of a record list in bytes. */ |
| 2453 | static int |
| 2454 | calc_record_size (unw_rec_list *list) |
| 2455 | { |
| 2456 | vbyte_count = 0; |
| 2457 | process_unw_records (list, count_output); |
| 2458 | return vbyte_count; |
| 2459 | } |
| 2460 | |
| 2461 | /* Return the number of bits set in the input value. |
| 2462 | Perhaps this has a better place... */ |
| 2463 | #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) |
| 2464 | # define popcount __builtin_popcount |
| 2465 | #else |
| 2466 | static int |
| 2467 | popcount (unsigned x) |
| 2468 | { |
| 2469 | static const unsigned char popcnt[16] = |
| 2470 | { |
| 2471 | 0, 1, 1, 2, |
| 2472 | 1, 2, 2, 3, |
| 2473 | 1, 2, 2, 3, |
| 2474 | 2, 3, 3, 4 |
| 2475 | }; |
| 2476 | |
| 2477 | if (x < NELEMS (popcnt)) |
| 2478 | return popcnt[x]; |
| 2479 | return popcnt[x % NELEMS (popcnt)] + popcount (x / NELEMS (popcnt)); |
| 2480 | } |
| 2481 | #endif |
| 2482 | |
| 2483 | /* Update IMASK bitmask to reflect the fact that one or more registers |
| 2484 | of type TYPE are saved starting at instruction with index T. If N |
| 2485 | bits are set in REGMASK, it is assumed that instructions T through |
| 2486 | T+N-1 save these registers. |
| 2487 | |
| 2488 | TYPE values: |
| 2489 | 0: no save |
| 2490 | 1: instruction saves next fp reg |
| 2491 | 2: instruction saves next general reg |
| 2492 | 3: instruction saves next branch reg */ |
| 2493 | static void |
| 2494 | set_imask (unw_rec_list *region, |
| 2495 | unsigned long regmask, |
| 2496 | unsigned long t, |
| 2497 | unsigned int type) |
| 2498 | { |
| 2499 | unsigned char *imask; |
| 2500 | unsigned long imask_size; |
| 2501 | unsigned int i; |
| 2502 | int pos; |
| 2503 | |
| 2504 | imask = region->r.record.r.mask.i; |
| 2505 | imask_size = region->r.record.r.imask_size; |
| 2506 | if (!imask) |
| 2507 | { |
| 2508 | imask_size = (region->r.record.r.rlen * 2 + 7) / 8 + 1; |
| 2509 | imask = xmalloc (imask_size); |
| 2510 | memset (imask, 0, imask_size); |
| 2511 | |
| 2512 | region->r.record.r.imask_size = imask_size; |
| 2513 | region->r.record.r.mask.i = imask; |
| 2514 | } |
| 2515 | |
| 2516 | i = (t / 4) + 1; |
| 2517 | pos = 2 * (3 - t % 4); |
| 2518 | while (regmask) |
| 2519 | { |
| 2520 | if (i >= imask_size) |
| 2521 | { |
| 2522 | as_bad (_("Ignoring attempt to spill beyond end of region")); |
| 2523 | return; |
| 2524 | } |
| 2525 | |
| 2526 | imask[i] |= (type & 0x3) << pos; |
| 2527 | |
| 2528 | regmask &= (regmask - 1); |
| 2529 | pos -= 2; |
| 2530 | if (pos < 0) |
| 2531 | { |
| 2532 | pos = 0; |
| 2533 | ++i; |
| 2534 | } |
| 2535 | } |
| 2536 | } |
| 2537 | |
| 2538 | /* Return the number of instruction slots from FIRST_ADDR to SLOT_ADDR. |
| 2539 | SLOT_FRAG is the frag containing SLOT_ADDR, and FIRST_FRAG is the frag |
| 2540 | containing FIRST_ADDR. If BEFORE_RELAX, then we use worst-case estimates |
| 2541 | for frag sizes. */ |
| 2542 | |
| 2543 | static unsigned long |
| 2544 | slot_index (unsigned long slot_addr, |
| 2545 | fragS *slot_frag, |
| 2546 | unsigned long first_addr, |
| 2547 | fragS *first_frag, |
| 2548 | int before_relax) |
| 2549 | { |
| 2550 | unsigned long s_index = 0; |
| 2551 | |
| 2552 | /* First time we are called, the initial address and frag are invalid. */ |
| 2553 | if (first_addr == 0) |
| 2554 | return 0; |
| 2555 | |
| 2556 | /* If the two addresses are in different frags, then we need to add in |
| 2557 | the remaining size of this frag, and then the entire size of intermediate |
| 2558 | frags. */ |
| 2559 | while (slot_frag != first_frag) |
| 2560 | { |
| 2561 | unsigned long start_addr = (unsigned long) &first_frag->fr_literal; |
| 2562 | |
| 2563 | if (! before_relax) |
| 2564 | { |
| 2565 | /* We can get the final addresses only during and after |
| 2566 | relaxation. */ |
| 2567 | if (first_frag->fr_next && first_frag->fr_next->fr_address) |
| 2568 | s_index += 3 * ((first_frag->fr_next->fr_address |
| 2569 | - first_frag->fr_address |
| 2570 | - first_frag->fr_fix) >> 4); |
| 2571 | } |
| 2572 | else |
| 2573 | /* We don't know what the final addresses will be. We try our |
| 2574 | best to estimate. */ |
| 2575 | switch (first_frag->fr_type) |
| 2576 | { |
| 2577 | default: |
| 2578 | break; |
| 2579 | |
| 2580 | case rs_space: |
| 2581 | as_fatal (_("Only constant space allocation is supported")); |
| 2582 | break; |
| 2583 | |
| 2584 | case rs_align: |
| 2585 | case rs_align_code: |
| 2586 | case rs_align_test: |
| 2587 | /* Take alignment into account. Assume the worst case |
| 2588 | before relaxation. */ |
| 2589 | s_index += 3 * ((1 << first_frag->fr_offset) >> 4); |
| 2590 | break; |
| 2591 | |
| 2592 | case rs_org: |
| 2593 | if (first_frag->fr_symbol) |
| 2594 | { |
| 2595 | as_fatal (_("Only constant offsets are supported")); |
| 2596 | break; |
| 2597 | } |
| 2598 | case rs_fill: |
| 2599 | s_index += 3 * (first_frag->fr_offset >> 4); |
| 2600 | break; |
| 2601 | } |
| 2602 | |
| 2603 | /* Add in the full size of the frag converted to instruction slots. */ |
| 2604 | s_index += 3 * (first_frag->fr_fix >> 4); |
| 2605 | /* Subtract away the initial part before first_addr. */ |
| 2606 | s_index -= (3 * ((first_addr >> 4) - (start_addr >> 4)) |
| 2607 | + ((first_addr & 0x3) - (start_addr & 0x3))); |
| 2608 | |
| 2609 | /* Move to the beginning of the next frag. */ |
| 2610 | first_frag = first_frag->fr_next; |
| 2611 | first_addr = (unsigned long) &first_frag->fr_literal; |
| 2612 | |
| 2613 | /* This can happen if there is section switching in the middle of a |
| 2614 | function, causing the frag chain for the function to be broken. |
| 2615 | It is too difficult to recover safely from this problem, so we just |
| 2616 | exit with an error. */ |
| 2617 | if (first_frag == NULL) |
| 2618 | as_fatal (_("Section switching in code is not supported.")); |
| 2619 | } |
| 2620 | |
| 2621 | /* Add in the used part of the last frag. */ |
| 2622 | s_index += (3 * ((slot_addr >> 4) - (first_addr >> 4)) |
| 2623 | + ((slot_addr & 0x3) - (first_addr & 0x3))); |
| 2624 | return s_index; |
| 2625 | } |
| 2626 | |
| 2627 | /* Optimize unwind record directives. */ |
| 2628 | |
| 2629 | static unw_rec_list * |
| 2630 | optimize_unw_records (unw_rec_list *list) |
| 2631 | { |
| 2632 | if (!list) |
| 2633 | return NULL; |
| 2634 | |
| 2635 | /* If the only unwind record is ".prologue" or ".prologue" followed |
| 2636 | by ".body", then we can optimize the unwind directives away. */ |
| 2637 | if (list->r.type == prologue |
| 2638 | && (list->next->r.type == endp |
| 2639 | || (list->next->r.type == body && list->next->next->r.type == endp))) |
| 2640 | return NULL; |
| 2641 | |
| 2642 | return list; |
| 2643 | } |
| 2644 | |
| 2645 | /* Given a complete record list, process any records which have |
| 2646 | unresolved fields, (ie length counts for a prologue). After |
| 2647 | this has been run, all necessary information should be available |
| 2648 | within each record to generate an image. */ |
| 2649 | |
| 2650 | static void |
| 2651 | fixup_unw_records (unw_rec_list *list, int before_relax) |
| 2652 | { |
| 2653 | unw_rec_list *ptr, *region = 0; |
| 2654 | unsigned long first_addr = 0, rlen = 0, t; |
| 2655 | fragS *first_frag = 0; |
| 2656 | |
| 2657 | for (ptr = list; ptr; ptr = ptr->next) |
| 2658 | { |
| 2659 | if (ptr->slot_number == SLOT_NUM_NOT_SET) |
| 2660 | as_bad (_(" Insn slot not set in unwind record.")); |
| 2661 | t = slot_index (ptr->slot_number, ptr->slot_frag, |
| 2662 | first_addr, first_frag, before_relax); |
| 2663 | switch (ptr->r.type) |
| 2664 | { |
| 2665 | case prologue: |
| 2666 | case prologue_gr: |
| 2667 | case body: |
| 2668 | { |
| 2669 | unw_rec_list *last; |
| 2670 | int size; |
| 2671 | unsigned long last_addr = 0; |
| 2672 | fragS *last_frag = NULL; |
| 2673 | |
| 2674 | first_addr = ptr->slot_number; |
| 2675 | first_frag = ptr->slot_frag; |
| 2676 | /* Find either the next body/prologue start, or the end of |
| 2677 | the function, and determine the size of the region. */ |
| 2678 | for (last = ptr->next; last != NULL; last = last->next) |
| 2679 | if (last->r.type == prologue || last->r.type == prologue_gr |
| 2680 | || last->r.type == body || last->r.type == endp) |
| 2681 | { |
| 2682 | last_addr = last->slot_number; |
| 2683 | last_frag = last->slot_frag; |
| 2684 | break; |
| 2685 | } |
| 2686 | size = slot_index (last_addr, last_frag, first_addr, first_frag, |
| 2687 | before_relax); |
| 2688 | rlen = ptr->r.record.r.rlen = size; |
| 2689 | if (ptr->r.type == body) |
| 2690 | /* End of region. */ |
| 2691 | region = 0; |
| 2692 | else |
| 2693 | region = ptr; |
| 2694 | break; |
| 2695 | } |
| 2696 | case epilogue: |
| 2697 | if (t < rlen) |
| 2698 | ptr->r.record.b.t = rlen - 1 - t; |
| 2699 | else |
| 2700 | /* This happens when a memory-stack-less procedure uses a |
| 2701 | ".restore sp" directive at the end of a region to pop |
| 2702 | the frame state. */ |
| 2703 | ptr->r.record.b.t = 0; |
| 2704 | break; |
| 2705 | |
| 2706 | case mem_stack_f: |
| 2707 | case mem_stack_v: |
| 2708 | case rp_when: |
| 2709 | case pfs_when: |
| 2710 | case preds_when: |
| 2711 | case unat_when: |
| 2712 | case lc_when: |
| 2713 | case fpsr_when: |
| 2714 | case priunat_when_gr: |
| 2715 | case priunat_when_mem: |
| 2716 | case bsp_when: |
| 2717 | case bspstore_when: |
| 2718 | case rnat_when: |
| 2719 | ptr->r.record.p.t = t; |
| 2720 | break; |
| 2721 | |
| 2722 | case spill_reg: |
| 2723 | case spill_sprel: |
| 2724 | case spill_psprel: |
| 2725 | case spill_reg_p: |
| 2726 | case spill_sprel_p: |
| 2727 | case spill_psprel_p: |
| 2728 | ptr->r.record.x.t = t; |
| 2729 | break; |
| 2730 | |
| 2731 | case frgr_mem: |
| 2732 | if (!region) |
| 2733 | { |
| 2734 | as_bad (_("frgr_mem record before region record!")); |
| 2735 | return; |
| 2736 | } |
| 2737 | region->r.record.r.mask.fr_mem |= ptr->r.record.p.frmask; |
| 2738 | region->r.record.r.mask.gr_mem |= ptr->r.record.p.grmask; |
| 2739 | set_imask (region, ptr->r.record.p.frmask, t, 1); |
| 2740 | set_imask (region, ptr->r.record.p.grmask, t, 2); |
| 2741 | break; |
| 2742 | case fr_mem: |
| 2743 | if (!region) |
| 2744 | { |
| 2745 | as_bad (_("fr_mem record before region record!")); |
| 2746 | return; |
| 2747 | } |
| 2748 | region->r.record.r.mask.fr_mem |= ptr->r.record.p.frmask; |
| 2749 | set_imask (region, ptr->r.record.p.frmask, t, 1); |
| 2750 | break; |
| 2751 | case gr_mem: |
| 2752 | if (!region) |
| 2753 | { |
| 2754 | as_bad (_("gr_mem record before region record!")); |
| 2755 | return; |
| 2756 | } |
| 2757 | region->r.record.r.mask.gr_mem |= ptr->r.record.p.grmask; |
| 2758 | set_imask (region, ptr->r.record.p.grmask, t, 2); |
| 2759 | break; |
| 2760 | case br_mem: |
| 2761 | if (!region) |
| 2762 | { |
| 2763 | as_bad (_("br_mem record before region record!")); |
| 2764 | return; |
| 2765 | } |
| 2766 | region->r.record.r.mask.br_mem |= ptr->r.record.p.brmask; |
| 2767 | set_imask (region, ptr->r.record.p.brmask, t, 3); |
| 2768 | break; |
| 2769 | |
| 2770 | case gr_gr: |
| 2771 | if (!region) |
| 2772 | { |
| 2773 | as_bad (_("gr_gr record before region record!")); |
| 2774 | return; |
| 2775 | } |
| 2776 | set_imask (region, ptr->r.record.p.grmask, t, 2); |
| 2777 | break; |
| 2778 | case br_gr: |
| 2779 | if (!region) |
| 2780 | { |
| 2781 | as_bad (_("br_gr record before region record!")); |
| 2782 | return; |
| 2783 | } |
| 2784 | set_imask (region, ptr->r.record.p.brmask, t, 3); |
| 2785 | break; |
| 2786 | |
| 2787 | default: |
| 2788 | break; |
| 2789 | } |
| 2790 | } |
| 2791 | } |
| 2792 | |
| 2793 | /* Estimate the size of a frag before relaxing. We only have one type of frag |
| 2794 | to handle here, which is the unwind info frag. */ |
| 2795 | |
| 2796 | int |
| 2797 | ia64_estimate_size_before_relax (fragS *frag, |
| 2798 | asection *segtype ATTRIBUTE_UNUSED) |
| 2799 | { |
| 2800 | unw_rec_list *list; |
| 2801 | int len, size, pad; |
| 2802 | |
| 2803 | /* ??? This code is identical to the first part of ia64_convert_frag. */ |
| 2804 | list = (unw_rec_list *) frag->fr_opcode; |
| 2805 | fixup_unw_records (list, 0); |
| 2806 | |
| 2807 | len = calc_record_size (list); |
| 2808 | /* pad to pointer-size boundary. */ |
| 2809 | pad = len % md.pointer_size; |
| 2810 | if (pad != 0) |
| 2811 | len += md.pointer_size - pad; |
| 2812 | /* Add 8 for the header. */ |
| 2813 | size = len + 8; |
| 2814 | /* Add a pointer for the personality offset. */ |
| 2815 | if (frag->fr_offset) |
| 2816 | size += md.pointer_size; |
| 2817 | |
| 2818 | /* fr_var carries the max_chars that we created the fragment with. |
| 2819 | We must, of course, have allocated enough memory earlier. */ |
| 2820 | gas_assert (frag->fr_var >= size); |
| 2821 | |
| 2822 | return frag->fr_fix + size; |
| 2823 | } |
| 2824 | |
| 2825 | /* This function converts a rs_machine_dependent variant frag into a |
| 2826 | normal fill frag with the unwind image from the the record list. */ |
| 2827 | void |
| 2828 | ia64_convert_frag (fragS *frag) |
| 2829 | { |
| 2830 | unw_rec_list *list; |
| 2831 | int len, size, pad; |
| 2832 | valueT flag_value; |
| 2833 | |
| 2834 | /* ??? This code is identical to ia64_estimate_size_before_relax. */ |
| 2835 | list = (unw_rec_list *) frag->fr_opcode; |
| 2836 | fixup_unw_records (list, 0); |
| 2837 | |
| 2838 | len = calc_record_size (list); |
| 2839 | /* pad to pointer-size boundary. */ |
| 2840 | pad = len % md.pointer_size; |
| 2841 | if (pad != 0) |
| 2842 | len += md.pointer_size - pad; |
| 2843 | /* Add 8 for the header. */ |
| 2844 | size = len + 8; |
| 2845 | /* Add a pointer for the personality offset. */ |
| 2846 | if (frag->fr_offset) |
| 2847 | size += md.pointer_size; |
| 2848 | |
| 2849 | /* fr_var carries the max_chars that we created the fragment with. |
| 2850 | We must, of course, have allocated enough memory earlier. */ |
| 2851 | gas_assert (frag->fr_var >= size); |
| 2852 | |
| 2853 | /* Initialize the header area. fr_offset is initialized with |
| 2854 | unwind.personality_routine. */ |
| 2855 | if (frag->fr_offset) |
| 2856 | { |
| 2857 | if (md.flags & EF_IA_64_ABI64) |
| 2858 | flag_value = (bfd_vma) 3 << 32; |
| 2859 | else |
| 2860 | /* 32-bit unwind info block. */ |
| 2861 | flag_value = (bfd_vma) 0x1003 << 32; |
| 2862 | } |
| 2863 | else |
| 2864 | flag_value = 0; |
| 2865 | |
| 2866 | md_number_to_chars (frag->fr_literal, |
| 2867 | (((bfd_vma) 1 << 48) /* Version. */ |
| 2868 | | flag_value /* U & E handler flags. */ |
| 2869 | | (len / md.pointer_size)), /* Length. */ |
| 2870 | 8); |
| 2871 | |
| 2872 | /* Skip the header. */ |
| 2873 | vbyte_mem_ptr = frag->fr_literal + 8; |
| 2874 | process_unw_records (list, output_vbyte_mem); |
| 2875 | |
| 2876 | /* Fill the padding bytes with zeros. */ |
| 2877 | if (pad != 0) |
| 2878 | md_number_to_chars (frag->fr_literal + len + 8 - md.pointer_size + pad, 0, |
| 2879 | md.pointer_size - pad); |
| 2880 | /* Fill the unwind personality with zeros. */ |
| 2881 | if (frag->fr_offset) |
| 2882 | md_number_to_chars (frag->fr_literal + size - md.pointer_size, 0, |
| 2883 | md.pointer_size); |
| 2884 | |
| 2885 | frag->fr_fix += size; |
| 2886 | frag->fr_type = rs_fill; |
| 2887 | frag->fr_var = 0; |
| 2888 | frag->fr_offset = 0; |
| 2889 | } |
| 2890 | |
| 2891 | static int |
| 2892 | parse_predicate_and_operand (expressionS *e, unsigned *qp, const char *po) |
| 2893 | { |
| 2894 | int sep = parse_operand_and_eval (e, ','); |
| 2895 | |
| 2896 | *qp = e->X_add_number - REG_P; |
| 2897 | if (e->X_op != O_register || *qp > 63) |
| 2898 | { |
| 2899 | as_bad (_("First operand to .%s must be a predicate"), po); |
| 2900 | *qp = 0; |
| 2901 | } |
| 2902 | else if (*qp == 0) |
| 2903 | as_warn (_("Pointless use of p0 as first operand to .%s"), po); |
| 2904 | if (sep == ',') |
| 2905 | sep = parse_operand_and_eval (e, ','); |
| 2906 | else |
| 2907 | e->X_op = O_absent; |
| 2908 | return sep; |
| 2909 | } |
| 2910 | |
| 2911 | static void |
| 2912 | convert_expr_to_ab_reg (const expressionS *e, |
| 2913 | unsigned int *ab, |
| 2914 | unsigned int *regp, |
| 2915 | const char *po, |
| 2916 | int n) |
| 2917 | { |
| 2918 | unsigned int reg = e->X_add_number; |
| 2919 | |
| 2920 | *ab = *regp = 0; /* Anything valid is good here. */ |
| 2921 | |
| 2922 | if (e->X_op != O_register) |
| 2923 | reg = REG_GR; /* Anything invalid is good here. */ |
| 2924 | |
| 2925 | if (reg >= (REG_GR + 4) && reg <= (REG_GR + 7)) |
| 2926 | { |
| 2927 | *ab = 0; |
| 2928 | *regp = reg - REG_GR; |
| 2929 | } |
| 2930 | else if ((reg >= (REG_FR + 2) && reg <= (REG_FR + 5)) |
| 2931 | || (reg >= (REG_FR + 16) && reg <= (REG_FR + 31))) |
| 2932 | { |
| 2933 | *ab = 1; |
| 2934 | *regp = reg - REG_FR; |
| 2935 | } |
| 2936 | else if (reg >= (REG_BR + 1) && reg <= (REG_BR + 5)) |
| 2937 | { |
| 2938 | *ab = 2; |
| 2939 | *regp = reg - REG_BR; |
| 2940 | } |
| 2941 | else |
| 2942 | { |
| 2943 | *ab = 3; |
| 2944 | switch (reg) |
| 2945 | { |
| 2946 | case REG_PR: *regp = 0; break; |
| 2947 | case REG_PSP: *regp = 1; break; |
| 2948 | case REG_PRIUNAT: *regp = 2; break; |
| 2949 | case REG_BR + 0: *regp = 3; break; |
| 2950 | case REG_AR + AR_BSP: *regp = 4; break; |
| 2951 | case REG_AR + AR_BSPSTORE: *regp = 5; break; |
| 2952 | case REG_AR + AR_RNAT: *regp = 6; break; |
| 2953 | case REG_AR + AR_UNAT: *regp = 7; break; |
| 2954 | case REG_AR + AR_FPSR: *regp = 8; break; |
| 2955 | case REG_AR + AR_PFS: *regp = 9; break; |
| 2956 | case REG_AR + AR_LC: *regp = 10; break; |
| 2957 | |
| 2958 | default: |
| 2959 | as_bad (_("Operand %d to .%s must be a preserved register"), n, po); |
| 2960 | break; |
| 2961 | } |
| 2962 | } |
| 2963 | } |
| 2964 | |
| 2965 | static void |
| 2966 | convert_expr_to_xy_reg (const expressionS *e, |
| 2967 | unsigned int *xy, |
| 2968 | unsigned int *regp, |
| 2969 | const char *po, |
| 2970 | int n) |
| 2971 | { |
| 2972 | unsigned int reg = e->X_add_number; |
| 2973 | |
| 2974 | *xy = *regp = 0; /* Anything valid is good here. */ |
| 2975 | |
| 2976 | if (e->X_op != O_register) |
| 2977 | reg = REG_GR; /* Anything invalid is good here. */ |
| 2978 | |
| 2979 | if (reg >= (REG_GR + 1) && reg <= (REG_GR + 127)) |
| 2980 | { |
| 2981 | *xy = 0; |
| 2982 | *regp = reg - REG_GR; |
| 2983 | } |
| 2984 | else if (reg >= (REG_FR + 2) && reg <= (REG_FR + 127)) |
| 2985 | { |
| 2986 | *xy = 1; |
| 2987 | *regp = reg - REG_FR; |
| 2988 | } |
| 2989 | else if (reg >= REG_BR && reg <= (REG_BR + 7)) |
| 2990 | { |
| 2991 | *xy = 2; |
| 2992 | *regp = reg - REG_BR; |
| 2993 | } |
| 2994 | else |
| 2995 | as_bad (_("Operand %d to .%s must be a writable register"), n, po); |
| 2996 | } |
| 2997 | |
| 2998 | static void |
| 2999 | dot_align (int arg) |
| 3000 | { |
| 3001 | /* The current frag is an alignment frag. */ |
| 3002 | align_frag = frag_now; |
| 3003 | s_align_bytes (arg); |
| 3004 | } |
| 3005 | |
| 3006 | static void |
| 3007 | dot_radix (int dummy ATTRIBUTE_UNUSED) |
| 3008 | { |
| 3009 | char *radix; |
| 3010 | int ch; |
| 3011 | |
| 3012 | SKIP_WHITESPACE (); |
| 3013 | |
| 3014 | if (is_it_end_of_statement ()) |
| 3015 | return; |
| 3016 | radix = input_line_pointer; |
| 3017 | ch = get_symbol_end (); |
| 3018 | ia64_canonicalize_symbol_name (radix); |
| 3019 | if (strcasecmp (radix, "C")) |
| 3020 | as_bad (_("Radix `%s' unsupported or invalid"), radix); |
| 3021 | *input_line_pointer = ch; |
| 3022 | demand_empty_rest_of_line (); |
| 3023 | } |
| 3024 | |
| 3025 | /* Helper function for .loc directives. If the assembler is not generating |
| 3026 | line number info, then we need to remember which instructions have a .loc |
| 3027 | directive, and only call dwarf2_gen_line_info for those instructions. */ |
| 3028 | |
| 3029 | static void |
| 3030 | dot_loc (int x) |
| 3031 | { |
| 3032 | CURR_SLOT.loc_directive_seen = 1; |
| 3033 | dwarf2_directive_loc (x); |
| 3034 | } |
| 3035 | |
| 3036 | /* .sbss, .bss etc. are macros that expand into ".section SECNAME". */ |
| 3037 | static void |
| 3038 | dot_special_section (int which) |
| 3039 | { |
| 3040 | set_section ((char *) special_section_name[which]); |
| 3041 | } |
| 3042 | |
| 3043 | /* Return -1 for warning and 0 for error. */ |
| 3044 | |
| 3045 | static int |
| 3046 | unwind_diagnostic (const char * region, const char *directive) |
| 3047 | { |
| 3048 | if (md.unwind_check == unwind_check_warning) |
| 3049 | { |
| 3050 | as_warn (_(".%s outside of %s"), directive, region); |
| 3051 | return -1; |
| 3052 | } |
| 3053 | else |
| 3054 | { |
| 3055 | as_bad (_(".%s outside of %s"), directive, region); |
| 3056 | ignore_rest_of_line (); |
| 3057 | return 0; |
| 3058 | } |
| 3059 | } |
| 3060 | |
| 3061 | /* Return 1 if a directive is in a procedure, -1 if a directive isn't in |
| 3062 | a procedure but the unwind directive check is set to warning, 0 if |
| 3063 | a directive isn't in a procedure and the unwind directive check is set |
| 3064 | to error. */ |
| 3065 | |
| 3066 | static int |
| 3067 | in_procedure (const char *directive) |
| 3068 | { |
| 3069 | if (unwind.proc_pending.sym |
| 3070 | && (!unwind.saved_text_seg || strcmp (directive, "endp") == 0)) |
| 3071 | return 1; |
| 3072 | return unwind_diagnostic ("procedure", directive); |
| 3073 | } |
| 3074 | |
| 3075 | /* Return 1 if a directive is in a prologue, -1 if a directive isn't in |
| 3076 | a prologue but the unwind directive check is set to warning, 0 if |
| 3077 | a directive isn't in a prologue and the unwind directive check is set |
| 3078 | to error. */ |
| 3079 | |
| 3080 | static int |
| 3081 | in_prologue (const char *directive) |
| 3082 | { |
| 3083 | int in = in_procedure (directive); |
| 3084 | |
| 3085 | if (in > 0 && !unwind.prologue) |
| 3086 | in = unwind_diagnostic ("prologue", directive); |
| 3087 | check_pending_save (); |
| 3088 | return in; |
| 3089 | } |
| 3090 | |
| 3091 | /* Return 1 if a directive is in a body, -1 if a directive isn't in |
| 3092 | a body but the unwind directive check is set to warning, 0 if |
| 3093 | a directive isn't in a body and the unwind directive check is set |
| 3094 | to error. */ |
| 3095 | |
| 3096 | static int |
| 3097 | in_body (const char *directive) |
| 3098 | { |
| 3099 | int in = in_procedure (directive); |
| 3100 | |
| 3101 | if (in > 0 && !unwind.body) |
| 3102 | in = unwind_diagnostic ("body region", directive); |
| 3103 | return in; |
| 3104 | } |
| 3105 | |
| 3106 | static void |
| 3107 | add_unwind_entry (unw_rec_list *ptr, int sep) |
| 3108 | { |
| 3109 | if (ptr) |
| 3110 | { |
| 3111 | if (unwind.tail) |
| 3112 | unwind.tail->next = ptr; |
| 3113 | else |
| 3114 | unwind.list = ptr; |
| 3115 | unwind.tail = ptr; |
| 3116 | |
| 3117 | /* The current entry can in fact be a chain of unwind entries. */ |
| 3118 | if (unwind.current_entry == NULL) |
| 3119 | unwind.current_entry = ptr; |
| 3120 | } |
| 3121 | |
| 3122 | /* The current entry can in fact be a chain of unwind entries. */ |
| 3123 | if (unwind.current_entry == NULL) |
| 3124 | unwind.current_entry = ptr; |
| 3125 | |
| 3126 | if (sep == ',') |
| 3127 | { |
| 3128 | /* Parse a tag permitted for the current directive. */ |
| 3129 | int ch; |
| 3130 | |
| 3131 | SKIP_WHITESPACE (); |
| 3132 | ch = get_symbol_end (); |
| 3133 | /* FIXME: For now, just issue a warning that this isn't implemented. */ |
| 3134 | { |
| 3135 | static int warned; |
| 3136 | |
| 3137 | if (!warned) |
| 3138 | { |
| 3139 | warned = 1; |
| 3140 | as_warn (_("Tags on unwind pseudo-ops aren't supported, yet")); |
| 3141 | } |
| 3142 | } |
| 3143 | *input_line_pointer = ch; |
| 3144 | } |
| 3145 | if (sep != NOT_A_CHAR) |
| 3146 | demand_empty_rest_of_line (); |
| 3147 | } |
| 3148 | |
| 3149 | static void |
| 3150 | dot_fframe (int dummy ATTRIBUTE_UNUSED) |
| 3151 | { |
| 3152 | expressionS e; |
| 3153 | int sep; |
| 3154 | |
| 3155 | if (!in_prologue ("fframe")) |
| 3156 | return; |
| 3157 | |
| 3158 | sep = parse_operand_and_eval (&e, ','); |
| 3159 | |
| 3160 | if (e.X_op != O_constant) |
| 3161 | { |
| 3162 | as_bad (_("First operand to .fframe must be a constant")); |
| 3163 | e.X_add_number = 0; |
| 3164 | } |
| 3165 | add_unwind_entry (output_mem_stack_f (e.X_add_number), sep); |
| 3166 | } |
| 3167 | |
| 3168 | static void |
| 3169 | dot_vframe (int dummy ATTRIBUTE_UNUSED) |
| 3170 | { |
| 3171 | expressionS e; |
| 3172 | unsigned reg; |
| 3173 | int sep; |
| 3174 | |
| 3175 | if (!in_prologue ("vframe")) |
| 3176 | return; |
| 3177 | |
| 3178 | sep = parse_operand_and_eval (&e, ','); |
| 3179 | reg = e.X_add_number - REG_GR; |
| 3180 | if (e.X_op != O_register || reg > 127) |
| 3181 | { |
| 3182 | as_bad (_("First operand to .vframe must be a general register")); |
| 3183 | reg = 0; |
| 3184 | } |
| 3185 | add_unwind_entry (output_mem_stack_v (), sep); |
| 3186 | if (! (unwind.prologue_mask & 2)) |
| 3187 | add_unwind_entry (output_psp_gr (reg), NOT_A_CHAR); |
| 3188 | else if (reg != unwind.prologue_gr |
| 3189 | + (unsigned) popcount (unwind.prologue_mask & (-2 << 1))) |
| 3190 | as_warn (_("Operand of .vframe contradicts .prologue")); |
| 3191 | } |
| 3192 | |
| 3193 | static void |
| 3194 | dot_vframesp (int psp) |
| 3195 | { |
| 3196 | expressionS e; |
| 3197 | int sep; |
| 3198 | |
| 3199 | if (psp) |
| 3200 | as_warn (_(".vframepsp is meaningless, assuming .vframesp was meant")); |
| 3201 | |
| 3202 | if (!in_prologue ("vframesp")) |
| 3203 | return; |
| 3204 | |
| 3205 | sep = parse_operand_and_eval (&e, ','); |
| 3206 | if (e.X_op != O_constant) |
| 3207 | { |
| 3208 | as_bad (_("Operand to .vframesp must be a constant (sp-relative offset)")); |
| 3209 | e.X_add_number = 0; |
| 3210 | } |
| 3211 | add_unwind_entry (output_mem_stack_v (), sep); |
| 3212 | add_unwind_entry (output_psp_sprel (e.X_add_number), NOT_A_CHAR); |
| 3213 | } |
| 3214 | |
| 3215 | static void |
| 3216 | dot_save (int dummy ATTRIBUTE_UNUSED) |
| 3217 | { |
| 3218 | expressionS e1, e2; |
| 3219 | unsigned reg1, reg2; |
| 3220 | int sep; |
| 3221 | |
| 3222 | if (!in_prologue ("save")) |
| 3223 | return; |
| 3224 | |
| 3225 | sep = parse_operand_and_eval (&e1, ','); |
| 3226 | if (sep == ',') |
| 3227 | sep = parse_operand_and_eval (&e2, ','); |
| 3228 | else |
| 3229 | e2.X_op = O_absent; |
| 3230 | |
| 3231 | reg1 = e1.X_add_number; |
| 3232 | /* Make sure its a valid ar.xxx reg, OR its br0, aka 'rp'. */ |
| 3233 | if (e1.X_op != O_register) |
| 3234 | { |
| 3235 | as_bad (_("First operand to .save not a register")); |
| 3236 | reg1 = REG_PR; /* Anything valid is good here. */ |
| 3237 | } |
| 3238 | reg2 = e2.X_add_number - REG_GR; |
| 3239 | if (e2.X_op != O_register || reg2 > 127) |
| 3240 | { |
| 3241 | as_bad (_("Second operand to .save not a valid register")); |
| 3242 | reg2 = 0; |
| 3243 | } |
| 3244 | switch (reg1) |
| 3245 | { |
| 3246 | case REG_AR + AR_BSP: |
| 3247 | add_unwind_entry (output_bsp_when (), sep); |
| 3248 | add_unwind_entry (output_bsp_gr (reg2), NOT_A_CHAR); |
| 3249 | break; |
| 3250 | case REG_AR + AR_BSPSTORE: |
| 3251 | add_unwind_entry (output_bspstore_when (), sep); |
| 3252 | add_unwind_entry (output_bspstore_gr (reg2), NOT_A_CHAR); |
| 3253 | break; |
| 3254 | case REG_AR + AR_RNAT: |
| 3255 | add_unwind_entry (output_rnat_when (), sep); |
| 3256 | add_unwind_entry (output_rnat_gr (reg2), NOT_A_CHAR); |
| 3257 | break; |
| 3258 | case REG_AR + AR_UNAT: |
| 3259 | add_unwind_entry (output_unat_when (), sep); |
| 3260 | add_unwind_entry (output_unat_gr (reg2), NOT_A_CHAR); |
| 3261 | break; |
| 3262 | case REG_AR + AR_FPSR: |
| 3263 | add_unwind_entry (output_fpsr_when (), sep); |
| 3264 | add_unwind_entry (output_fpsr_gr (reg2), NOT_A_CHAR); |
| 3265 | break; |
| 3266 | case REG_AR + AR_PFS: |
| 3267 | add_unwind_entry (output_pfs_when (), sep); |
| 3268 | if (! (unwind.prologue_mask & 4)) |
| 3269 | add_unwind_entry (output_pfs_gr (reg2), NOT_A_CHAR); |
| 3270 | else if (reg2 != unwind.prologue_gr |
| 3271 | + (unsigned) popcount (unwind.prologue_mask & (-4 << 1))) |
| 3272 | as_warn (_("Second operand of .save contradicts .prologue")); |
| 3273 | break; |
| 3274 | case REG_AR + AR_LC: |
| 3275 | add_unwind_entry (output_lc_when (), sep); |
| 3276 | add_unwind_entry (output_lc_gr (reg2), NOT_A_CHAR); |
| 3277 | break; |
| 3278 | case REG_BR: |
| 3279 | add_unwind_entry (output_rp_when (), sep); |
| 3280 | if (! (unwind.prologue_mask & 8)) |
| 3281 | add_unwind_entry (output_rp_gr (reg2), NOT_A_CHAR); |
| 3282 | else if (reg2 != unwind.prologue_gr) |
| 3283 | as_warn (_("Second operand of .save contradicts .prologue")); |
| 3284 | break; |
| 3285 | case REG_PR: |
| 3286 | add_unwind_entry (output_preds_when (), sep); |
| 3287 | if (! (unwind.prologue_mask & 1)) |
| 3288 | add_unwind_entry (output_preds_gr (reg2), NOT_A_CHAR); |
| 3289 | else if (reg2 != unwind.prologue_gr |
| 3290 | + (unsigned) popcount (unwind.prologue_mask & (-1 << 1))) |
| 3291 | as_warn (_("Second operand of .save contradicts .prologue")); |
| 3292 | break; |
| 3293 | case REG_PRIUNAT: |
| 3294 | add_unwind_entry (output_priunat_when_gr (), sep); |
| 3295 | add_unwind_entry (output_priunat_gr (reg2), NOT_A_CHAR); |
| 3296 | break; |
| 3297 | default: |
| 3298 | as_bad (_("First operand to .save not a valid register")); |
| 3299 | add_unwind_entry (NULL, sep); |
| 3300 | break; |
| 3301 | } |
| 3302 | } |
| 3303 | |
| 3304 | static void |
| 3305 | dot_restore (int dummy ATTRIBUTE_UNUSED) |
| 3306 | { |
| 3307 | expressionS e1; |
| 3308 | unsigned long ecount; /* # of _additional_ regions to pop */ |
| 3309 | int sep; |
| 3310 | |
| 3311 | if (!in_body ("restore")) |
| 3312 | return; |
| 3313 | |
| 3314 | sep = parse_operand_and_eval (&e1, ','); |
| 3315 | if (e1.X_op != O_register || e1.X_add_number != REG_GR + 12) |
| 3316 | as_bad (_("First operand to .restore must be stack pointer (sp)")); |
| 3317 | |
| 3318 | if (sep == ',') |
| 3319 | { |
| 3320 | expressionS e2; |
| 3321 | |
| 3322 | sep = parse_operand_and_eval (&e2, ','); |
| 3323 | if (e2.X_op != O_constant || e2.X_add_number < 0) |
| 3324 | { |
| 3325 | as_bad (_("Second operand to .restore must be a constant >= 0")); |
| 3326 | e2.X_add_number = 0; |
| 3327 | } |
| 3328 | ecount = e2.X_add_number; |
| 3329 | } |
| 3330 | else |
| 3331 | ecount = unwind.prologue_count - 1; |
| 3332 | |
| 3333 | if (ecount >= unwind.prologue_count) |
| 3334 | { |
| 3335 | as_bad (_("Epilogue count of %lu exceeds number of nested prologues (%u)"), |
| 3336 | ecount + 1, unwind.prologue_count); |
| 3337 | ecount = 0; |
| 3338 | } |
| 3339 | |
| 3340 | add_unwind_entry (output_epilogue (ecount), sep); |
| 3341 | |
| 3342 | if (ecount < unwind.prologue_count) |
| 3343 | unwind.prologue_count -= ecount + 1; |
| 3344 | else |
| 3345 | unwind.prologue_count = 0; |
| 3346 | } |
| 3347 | |
| 3348 | static void |
| 3349 | dot_restorereg (int pred) |
| 3350 | { |
| 3351 | unsigned int qp, ab, reg; |
| 3352 | expressionS e; |
| 3353 | int sep; |
| 3354 | const char * const po = pred ? "restorereg.p" : "restorereg"; |
| 3355 | |
| 3356 | if (!in_procedure (po)) |
| 3357 | return; |
| 3358 | |
| 3359 | if (pred) |
| 3360 | sep = parse_predicate_and_operand (&e, &qp, po); |
| 3361 | else |
| 3362 | { |
| 3363 | sep = parse_operand_and_eval (&e, ','); |
| 3364 | qp = 0; |
| 3365 | } |
| 3366 | convert_expr_to_ab_reg (&e, &ab, ®, po, 1 + pred); |
| 3367 | |
| 3368 | add_unwind_entry (output_spill_reg (ab, reg, 0, 0, qp), sep); |
| 3369 | } |
| 3370 | |
| 3371 | static char *special_linkonce_name[] = |
| 3372 | { |
| 3373 | ".gnu.linkonce.ia64unw.", ".gnu.linkonce.ia64unwi." |
| 3374 | }; |
| 3375 | |
| 3376 | static void |
| 3377 | start_unwind_section (const segT text_seg, int sec_index) |
| 3378 | { |
| 3379 | /* |
| 3380 | Use a slightly ugly scheme to derive the unwind section names from |
| 3381 | the text section name: |
| 3382 | |
| 3383 | text sect. unwind table sect. |
| 3384 | name: name: comments: |
| 3385 | ---------- ----------------- -------------------------------- |
| 3386 | .text .IA_64.unwind |
| 3387 | .text.foo .IA_64.unwind.text.foo |
| 3388 | .foo .IA_64.unwind.foo |
| 3389 | .gnu.linkonce.t.foo |
| 3390 | .gnu.linkonce.ia64unw.foo |
| 3391 | _info .IA_64.unwind_info gas issues error message (ditto) |
| 3392 | _infoFOO .IA_64.unwind_infoFOO gas issues error message (ditto) |
| 3393 | |
| 3394 | This mapping is done so that: |
| 3395 | |
| 3396 | (a) An object file with unwind info only in .text will use |
| 3397 | unwind section names .IA_64.unwind and .IA_64.unwind_info. |
| 3398 | This follows the letter of the ABI and also ensures backwards |
| 3399 | compatibility with older toolchains. |
| 3400 | |
| 3401 | (b) An object file with unwind info in multiple text sections |
| 3402 | will use separate unwind sections for each text section. |
| 3403 | This allows us to properly set the "sh_info" and "sh_link" |
| 3404 | fields in SHT_IA_64_UNWIND as required by the ABI and also |
| 3405 | lets GNU ld support programs with multiple segments |
| 3406 | containing unwind info (as might be the case for certain |
| 3407 | embedded applications). |
| 3408 | |
| 3409 | (c) An error is issued if there would be a name clash. |
| 3410 | */ |
| 3411 | |
| 3412 | const char *text_name, *sec_text_name; |
| 3413 | char *sec_name; |
| 3414 | const char *prefix = special_section_name [sec_index]; |
| 3415 | const char *suffix; |
| 3416 | size_t prefix_len, suffix_len, sec_name_len; |
| 3417 | |
| 3418 | sec_text_name = segment_name (text_seg); |
| 3419 | text_name = sec_text_name; |
| 3420 | if (strncmp (text_name, "_info", 5) == 0) |
| 3421 | { |
| 3422 | as_bad (_("Illegal section name `%s' (causes unwind section name clash)"), |
| 3423 | text_name); |
| 3424 | ignore_rest_of_line (); |
| 3425 | return; |
| 3426 | } |
| 3427 | if (strcmp (text_name, ".text") == 0) |
| 3428 | text_name = ""; |
| 3429 | |
| 3430 | /* Build the unwind section name by appending the (possibly stripped) |
| 3431 | text section name to the unwind prefix. */ |
| 3432 | suffix = text_name; |
| 3433 | if (strncmp (text_name, ".gnu.linkonce.t.", |
| 3434 | sizeof (".gnu.linkonce.t.") - 1) == 0) |
| 3435 | { |
| 3436 | prefix = special_linkonce_name [sec_index - SPECIAL_SECTION_UNWIND]; |
| 3437 | suffix += sizeof (".gnu.linkonce.t.") - 1; |
| 3438 | } |
| 3439 | |
| 3440 | prefix_len = strlen (prefix); |
| 3441 | suffix_len = strlen (suffix); |
| 3442 | sec_name_len = prefix_len + suffix_len; |
| 3443 | sec_name = alloca (sec_name_len + 1); |
| 3444 | memcpy (sec_name, prefix, prefix_len); |
| 3445 | memcpy (sec_name + prefix_len, suffix, suffix_len); |
| 3446 | sec_name [sec_name_len] = '\0'; |
| 3447 | |
| 3448 | /* Handle COMDAT group. */ |
| 3449 | if ((text_seg->flags & SEC_LINK_ONCE) != 0 |
| 3450 | && (elf_section_flags (text_seg) & SHF_GROUP) != 0) |
| 3451 | { |
| 3452 | char *section; |
| 3453 | size_t len, group_name_len; |
| 3454 | const char *group_name = elf_group_name (text_seg); |
| 3455 | |
| 3456 | if (group_name == NULL) |
| 3457 | { |
| 3458 | as_bad (_("Group section `%s' has no group signature"), |
| 3459 | sec_text_name); |
| 3460 | ignore_rest_of_line (); |
| 3461 | return; |
| 3462 | } |
| 3463 | /* We have to construct a fake section directive. */ |
| 3464 | group_name_len = strlen (group_name); |
| 3465 | len = (sec_name_len |
| 3466 | + 16 /* ,"aG",@progbits, */ |
| 3467 | + group_name_len /* ,group_name */ |
| 3468 | + 7); /* ,comdat */ |
| 3469 | |
| 3470 | section = alloca (len + 1); |
| 3471 | memcpy (section, sec_name, sec_name_len); |
| 3472 | memcpy (section + sec_name_len, ",\"aG\",@progbits,", 16); |
| 3473 | memcpy (section + sec_name_len + 16, group_name, group_name_len); |
| 3474 | memcpy (section + len - 7, ",comdat", 7); |
| 3475 | section [len] = '\0'; |
| 3476 | set_section (section); |
| 3477 | } |
| 3478 | else |
| 3479 | { |
| 3480 | set_section (sec_name); |
| 3481 | bfd_set_section_flags (stdoutput, now_seg, |
| 3482 | SEC_LOAD | SEC_ALLOC | SEC_READONLY); |
| 3483 | } |
| 3484 | |
| 3485 | elf_linked_to_section (now_seg) = text_seg; |
| 3486 | } |
| 3487 | |
| 3488 | static void |
| 3489 | generate_unwind_image (const segT text_seg) |
| 3490 | { |
| 3491 | int size, pad; |
| 3492 | unw_rec_list *list; |
| 3493 | |
| 3494 | /* Mark the end of the unwind info, so that we can compute the size of the |
| 3495 | last unwind region. */ |
| 3496 | add_unwind_entry (output_endp (), NOT_A_CHAR); |
| 3497 | |
| 3498 | /* Force out pending instructions, to make sure all unwind records have |
| 3499 | a valid slot_number field. */ |
| 3500 | ia64_flush_insns (); |
| 3501 | |
| 3502 | /* Generate the unwind record. */ |
| 3503 | list = optimize_unw_records (unwind.list); |
| 3504 | fixup_unw_records (list, 1); |
| 3505 | size = calc_record_size (list); |
| 3506 | |
| 3507 | if (size > 0 || unwind.force_unwind_entry) |
| 3508 | { |
| 3509 | unwind.force_unwind_entry = 0; |
| 3510 | /* pad to pointer-size boundary. */ |
| 3511 | pad = size % md.pointer_size; |
| 3512 | if (pad != 0) |
| 3513 | size += md.pointer_size - pad; |
| 3514 | /* Add 8 for the header. */ |
| 3515 | size += 8; |
| 3516 | /* Add a pointer for the personality offset. */ |
| 3517 | if (unwind.personality_routine) |
| 3518 | size += md.pointer_size; |
| 3519 | } |
| 3520 | |
| 3521 | /* If there are unwind records, switch sections, and output the info. */ |
| 3522 | if (size != 0) |
| 3523 | { |
| 3524 | expressionS exp; |
| 3525 | bfd_reloc_code_real_type reloc; |
| 3526 | |
| 3527 | start_unwind_section (text_seg, SPECIAL_SECTION_UNWIND_INFO); |
| 3528 | |
| 3529 | /* Make sure the section has 4 byte alignment for ILP32 and |
| 3530 | 8 byte alignment for LP64. */ |
| 3531 | frag_align (md.pointer_size_shift, 0, 0); |
| 3532 | record_alignment (now_seg, md.pointer_size_shift); |
| 3533 | |
| 3534 | /* Set expression which points to start of unwind descriptor area. */ |
| 3535 | unwind.info = expr_build_dot (); |
| 3536 | |
| 3537 | frag_var (rs_machine_dependent, size, size, 0, 0, |
| 3538 | (offsetT) (long) unwind.personality_routine, |
| 3539 | (char *) list); |
| 3540 | |
| 3541 | /* Add the personality address to the image. */ |
| 3542 | if (unwind.personality_routine != 0) |
| 3543 | { |
| 3544 | exp.X_op = O_symbol; |
| 3545 | exp.X_add_symbol = unwind.personality_routine; |
| 3546 | exp.X_add_number = 0; |
| 3547 | |
| 3548 | if (md.flags & EF_IA_64_BE) |
| 3549 | { |
| 3550 | if (md.flags & EF_IA_64_ABI64) |
| 3551 | reloc = BFD_RELOC_IA64_LTOFF_FPTR64MSB; |
| 3552 | else |
| 3553 | reloc = BFD_RELOC_IA64_LTOFF_FPTR32MSB; |
| 3554 | } |
| 3555 | else |
| 3556 | { |
| 3557 | if (md.flags & EF_IA_64_ABI64) |
| 3558 | reloc = BFD_RELOC_IA64_LTOFF_FPTR64LSB; |
| 3559 | else |
| 3560 | reloc = BFD_RELOC_IA64_LTOFF_FPTR32LSB; |
| 3561 | } |
| 3562 | |
| 3563 | fix_new_exp (frag_now, frag_now_fix () - md.pointer_size, |
| 3564 | md.pointer_size, &exp, 0, reloc); |
| 3565 | unwind.personality_routine = 0; |
| 3566 | } |
| 3567 | } |
| 3568 | |
| 3569 | free_saved_prologue_counts (); |
| 3570 | unwind.list = unwind.tail = unwind.current_entry = NULL; |
| 3571 | } |
| 3572 | |
| 3573 | static void |
| 3574 | dot_handlerdata (int dummy ATTRIBUTE_UNUSED) |
| 3575 | { |
| 3576 | if (!in_procedure ("handlerdata")) |
| 3577 | return; |
| 3578 | unwind.force_unwind_entry = 1; |
| 3579 | |
| 3580 | /* Remember which segment we're in so we can switch back after .endp */ |
| 3581 | unwind.saved_text_seg = now_seg; |
| 3582 | unwind.saved_text_subseg = now_subseg; |
| 3583 | |
| 3584 | /* Generate unwind info into unwind-info section and then leave that |
| 3585 | section as the currently active one so dataXX directives go into |
| 3586 | the language specific data area of the unwind info block. */ |
| 3587 | generate_unwind_image (now_seg); |
| 3588 | demand_empty_rest_of_line (); |
| 3589 | } |
| 3590 | |
| 3591 | static void |
| 3592 | dot_unwentry (int dummy ATTRIBUTE_UNUSED) |
| 3593 | { |
| 3594 | if (!in_procedure ("unwentry")) |
| 3595 | return; |
| 3596 | unwind.force_unwind_entry = 1; |
| 3597 | demand_empty_rest_of_line (); |
| 3598 | } |
| 3599 | |
| 3600 | static void |
| 3601 | dot_altrp (int dummy ATTRIBUTE_UNUSED) |
| 3602 | { |
| 3603 | expressionS e; |
| 3604 | unsigned reg; |
| 3605 | |
| 3606 | if (!in_prologue ("altrp")) |
| 3607 | return; |
| 3608 | |
| 3609 | parse_operand_and_eval (&e, 0); |
| 3610 | reg = e.X_add_number - REG_BR; |
| 3611 | if (e.X_op != O_register || reg > 7) |
| 3612 | { |
| 3613 | as_bad (_("First operand to .altrp not a valid branch register")); |
| 3614 | reg = 0; |
| 3615 | } |
| 3616 | add_unwind_entry (output_rp_br (reg), 0); |
| 3617 | } |
| 3618 | |
| 3619 | static void |
| 3620 | dot_savemem (int psprel) |
| 3621 | { |
| 3622 | expressionS e1, e2; |
| 3623 | int sep; |
| 3624 | int reg1, val; |
| 3625 | const char * const po = psprel ? "savepsp" : "savesp"; |
| 3626 | |
| 3627 | if (!in_prologue (po)) |
| 3628 | return; |
| 3629 | |
| 3630 | sep = parse_operand_and_eval (&e1, ','); |
| 3631 | if (sep == ',') |
| 3632 | sep = parse_operand_and_eval (&e2, ','); |
| 3633 | else |
| 3634 | e2.X_op = O_absent; |
| 3635 | |
| 3636 | reg1 = e1.X_add_number; |
| 3637 | val = e2.X_add_number; |
| 3638 | |
| 3639 | /* Make sure its a valid ar.xxx reg, OR its br0, aka 'rp'. */ |
| 3640 | if (e1.X_op != O_register) |
| 3641 | { |
| 3642 | as_bad (_("First operand to .%s not a register"), po); |
| 3643 | reg1 = REG_PR; /* Anything valid is good here. */ |
| 3644 | } |
| 3645 | if (e2.X_op != O_constant) |
| 3646 | { |
| 3647 | as_bad (_("Second operand to .%s not a constant"), po); |
| 3648 | val = 0; |
| 3649 | } |
| 3650 | |
| 3651 | switch (reg1) |
| 3652 | { |
| 3653 | case REG_AR + AR_BSP: |
| 3654 | add_unwind_entry (output_bsp_when (), sep); |
| 3655 | add_unwind_entry ((psprel |
| 3656 | ? output_bsp_psprel |
| 3657 | : output_bsp_sprel) (val), NOT_A_CHAR); |
| 3658 | break; |
| 3659 | case REG_AR + AR_BSPSTORE: |
| 3660 | add_unwind_entry (output_bspstore_when (), sep); |
| 3661 | add_unwind_entry ((psprel |
| 3662 | ? output_bspstore_psprel |
| 3663 | : output_bspstore_sprel) (val), NOT_A_CHAR); |
| 3664 | break; |
| 3665 | case REG_AR + AR_RNAT: |
| 3666 | add_unwind_entry (output_rnat_when (), sep); |
| 3667 | add_unwind_entry ((psprel |
| 3668 | ? output_rnat_psprel |
| 3669 | : output_rnat_sprel) (val), NOT_A_CHAR); |
| 3670 | break; |
| 3671 | case REG_AR + AR_UNAT: |
| 3672 | add_unwind_entry (output_unat_when (), sep); |
| 3673 | add_unwind_entry ((psprel |
| 3674 | ? output_unat_psprel |
| 3675 | : output_unat_sprel) (val), NOT_A_CHAR); |
| 3676 | break; |
| 3677 | case REG_AR + AR_FPSR: |
| 3678 | add_unwind_entry (output_fpsr_when (), sep); |
| 3679 | add_unwind_entry ((psprel |
| 3680 | ? output_fpsr_psprel |
| 3681 | : output_fpsr_sprel) (val), NOT_A_CHAR); |
| 3682 | break; |
| 3683 | case REG_AR + AR_PFS: |
| 3684 | add_unwind_entry (output_pfs_when (), sep); |
| 3685 | add_unwind_entry ((psprel |
| 3686 | ? output_pfs_psprel |
| 3687 | : output_pfs_sprel) (val), NOT_A_CHAR); |
| 3688 | break; |
| 3689 | case REG_AR + AR_LC: |
| 3690 | add_unwind_entry (output_lc_when (), sep); |
| 3691 | add_unwind_entry ((psprel |
| 3692 | ? output_lc_psprel |
| 3693 | : output_lc_sprel) (val), NOT_A_CHAR); |
| 3694 | break; |
| 3695 | case REG_BR: |
| 3696 | add_unwind_entry (output_rp_when (), sep); |
| 3697 | add_unwind_entry ((psprel |
| 3698 | ? output_rp_psprel |
| 3699 | : output_rp_sprel) (val), NOT_A_CHAR); |
| 3700 | break; |
| 3701 | case REG_PR: |
| 3702 | add_unwind_entry (output_preds_when (), sep); |
| 3703 | add_unwind_entry ((psprel |
| 3704 | ? output_preds_psprel |
| 3705 | : output_preds_sprel) (val), NOT_A_CHAR); |
| 3706 | break; |
| 3707 | case REG_PRIUNAT: |
| 3708 | add_unwind_entry (output_priunat_when_mem (), sep); |
| 3709 | add_unwind_entry ((psprel |
| 3710 | ? output_priunat_psprel |
| 3711 | : output_priunat_sprel) (val), NOT_A_CHAR); |
| 3712 | break; |
| 3713 | default: |
| 3714 | as_bad (_("First operand to .%s not a valid register"), po); |
| 3715 | add_unwind_entry (NULL, sep); |
| 3716 | break; |
| 3717 | } |
| 3718 | } |
| 3719 | |
| 3720 | static void |
| 3721 | dot_saveg (int dummy ATTRIBUTE_UNUSED) |
| 3722 | { |
| 3723 | expressionS e; |
| 3724 | unsigned grmask; |
| 3725 | int sep; |
| 3726 | |
| 3727 | if (!in_prologue ("save.g")) |
| 3728 | return; |
| 3729 | |
| 3730 | sep = parse_operand_and_eval (&e, ','); |
| 3731 | |
| 3732 | grmask = e.X_add_number; |
| 3733 | if (e.X_op != O_constant |
| 3734 | || e.X_add_number <= 0 |
| 3735 | || e.X_add_number > 0xf) |
| 3736 | { |
| 3737 | as_bad (_("First operand to .save.g must be a positive 4-bit constant")); |
| 3738 | grmask = 0; |
| 3739 | } |
| 3740 | |
| 3741 | if (sep == ',') |
| 3742 | { |
| 3743 | unsigned reg; |
| 3744 | int n = popcount (grmask); |
| 3745 | |
| 3746 | parse_operand_and_eval (&e, 0); |
| 3747 | reg = e.X_add_number - REG_GR; |
| 3748 | if (e.X_op != O_register || reg > 127) |
| 3749 | { |
| 3750 | as_bad (_("Second operand to .save.g must be a general register")); |
| 3751 | reg = 0; |
| 3752 | } |
| 3753 | else if (reg > 128U - n) |
| 3754 | { |
| 3755 | as_bad (_("Second operand to .save.g must be the first of %d general registers"), n); |
| 3756 | reg = 0; |
| 3757 | } |
| 3758 | add_unwind_entry (output_gr_gr (grmask, reg), 0); |
| 3759 | } |
| 3760 | else |
| 3761 | add_unwind_entry (output_gr_mem (grmask), 0); |
| 3762 | } |
| 3763 | |
| 3764 | static void |
| 3765 | dot_savef (int dummy ATTRIBUTE_UNUSED) |
| 3766 | { |
| 3767 | expressionS e; |
| 3768 | |
| 3769 | if (!in_prologue ("save.f")) |
| 3770 | return; |
| 3771 | |
| 3772 | parse_operand_and_eval (&e, 0); |
| 3773 | |
| 3774 | if (e.X_op != O_constant |
| 3775 | || e.X_add_number <= 0 |
| 3776 | || e.X_add_number > 0xfffff) |
| 3777 | { |
| 3778 | as_bad (_("Operand to .save.f must be a positive 20-bit constant")); |
| 3779 | e.X_add_number = 0; |
| 3780 | } |
| 3781 | add_unwind_entry (output_fr_mem (e.X_add_number), 0); |
| 3782 | } |
| 3783 | |
| 3784 | static void |
| 3785 | dot_saveb (int dummy ATTRIBUTE_UNUSED) |
| 3786 | { |
| 3787 | expressionS e; |
| 3788 | unsigned brmask; |
| 3789 | int sep; |
| 3790 | |
| 3791 | if (!in_prologue ("save.b")) |
| 3792 | return; |
| 3793 | |
| 3794 | sep = parse_operand_and_eval (&e, ','); |
| 3795 | |
| 3796 | brmask = e.X_add_number; |
| 3797 | if (e.X_op != O_constant |
| 3798 | || e.X_add_number <= 0 |
| 3799 | || e.X_add_number > 0x1f) |
| 3800 | { |
| 3801 | as_bad (_("First operand to .save.b must be a positive 5-bit constant")); |
| 3802 | brmask = 0; |
| 3803 | } |
| 3804 | |
| 3805 | if (sep == ',') |
| 3806 | { |
| 3807 | unsigned reg; |
| 3808 | int n = popcount (brmask); |
| 3809 | |
| 3810 | parse_operand_and_eval (&e, 0); |
| 3811 | reg = e.X_add_number - REG_GR; |
| 3812 | if (e.X_op != O_register || reg > 127) |
| 3813 | { |
| 3814 | as_bad (_("Second operand to .save.b must be a general register")); |
| 3815 | reg = 0; |
| 3816 | } |
| 3817 | else if (reg > 128U - n) |
| 3818 | { |
| 3819 | as_bad (_("Second operand to .save.b must be the first of %d general registers"), n); |
| 3820 | reg = 0; |
| 3821 | } |
| 3822 | add_unwind_entry (output_br_gr (brmask, reg), 0); |
| 3823 | } |
| 3824 | else |
| 3825 | add_unwind_entry (output_br_mem (brmask), 0); |
| 3826 | } |
| 3827 | |
| 3828 | static void |
| 3829 | dot_savegf (int dummy ATTRIBUTE_UNUSED) |
| 3830 | { |
| 3831 | expressionS e1, e2; |
| 3832 | |
| 3833 | if (!in_prologue ("save.gf")) |
| 3834 | return; |
| 3835 | |
| 3836 | if (parse_operand_and_eval (&e1, ',') == ',') |
| 3837 | parse_operand_and_eval (&e2, 0); |
| 3838 | else |
| 3839 | e2.X_op = O_absent; |
| 3840 | |
| 3841 | if (e1.X_op != O_constant |
| 3842 | || e1.X_add_number < 0 |
| 3843 | || e1.X_add_number > 0xf) |
| 3844 | { |
| 3845 | as_bad (_("First operand to .save.gf must be a non-negative 4-bit constant")); |
| 3846 | e1.X_op = O_absent; |
| 3847 | e1.X_add_number = 0; |
| 3848 | } |
| 3849 | if (e2.X_op != O_constant |
| 3850 | || e2.X_add_number < 0 |
| 3851 | || e2.X_add_number > 0xfffff) |
| 3852 | { |
| 3853 | as_bad (_("Second operand to .save.gf must be a non-negative 20-bit constant")); |
| 3854 | e2.X_op = O_absent; |
| 3855 | e2.X_add_number = 0; |
| 3856 | } |
| 3857 | if (e1.X_op == O_constant |
| 3858 | && e2.X_op == O_constant |
| 3859 | && e1.X_add_number == 0 |
| 3860 | && e2.X_add_number == 0) |
| 3861 | as_bad (_("Operands to .save.gf may not be both zero")); |
| 3862 | |
| 3863 | add_unwind_entry (output_frgr_mem (e1.X_add_number, e2.X_add_number), 0); |
| 3864 | } |
| 3865 | |
| 3866 | static void |
| 3867 | dot_spill (int dummy ATTRIBUTE_UNUSED) |
| 3868 | { |
| 3869 | expressionS e; |
| 3870 | |
| 3871 | if (!in_prologue ("spill")) |
| 3872 | return; |
| 3873 | |
| 3874 | parse_operand_and_eval (&e, 0); |
| 3875 | |
| 3876 | if (e.X_op != O_constant) |
| 3877 | { |
| 3878 | as_bad (_("Operand to .spill must be a constant")); |
| 3879 | e.X_add_number = 0; |
| 3880 | } |
| 3881 | add_unwind_entry (output_spill_base (e.X_add_number), 0); |
| 3882 | } |
| 3883 | |
| 3884 | static void |
| 3885 | dot_spillreg (int pred) |
| 3886 | { |
| 3887 | int sep; |
| 3888 | unsigned int qp, ab, xy, reg, treg; |
| 3889 | expressionS e; |
| 3890 | const char * const po = pred ? "spillreg.p" : "spillreg"; |
| 3891 | |
| 3892 | if (!in_procedure (po)) |
| 3893 | return; |
| 3894 | |
| 3895 | if (pred) |
| 3896 | sep = parse_predicate_and_operand (&e, &qp, po); |
| 3897 | else |
| 3898 | { |
| 3899 | sep = parse_operand_and_eval (&e, ','); |
| 3900 | qp = 0; |
| 3901 | } |
| 3902 | convert_expr_to_ab_reg (&e, &ab, ®, po, 1 + pred); |
| 3903 | |
| 3904 | if (sep == ',') |
| 3905 | sep = parse_operand_and_eval (&e, ','); |
| 3906 | else |
| 3907 | e.X_op = O_absent; |
| 3908 | convert_expr_to_xy_reg (&e, &xy, &treg, po, 2 + pred); |
| 3909 | |
| 3910 | add_unwind_entry (output_spill_reg (ab, reg, treg, xy, qp), sep); |
| 3911 | } |
| 3912 | |
| 3913 | static void |
| 3914 | dot_spillmem (int psprel) |
| 3915 | { |
| 3916 | expressionS e; |
| 3917 | int pred = (psprel < 0), sep; |
| 3918 | unsigned int qp, ab, reg; |
| 3919 | const char * po; |
| 3920 | |
| 3921 | if (pred) |
| 3922 | { |
| 3923 | psprel = ~psprel; |
| 3924 | po = psprel ? "spillpsp.p" : "spillsp.p"; |
| 3925 | } |
| 3926 | else |
| 3927 | po = psprel ? "spillpsp" : "spillsp"; |
| 3928 | |
| 3929 | if (!in_procedure (po)) |
| 3930 | return; |
| 3931 | |
| 3932 | if (pred) |
| 3933 | sep = parse_predicate_and_operand (&e, &qp, po); |
| 3934 | else |
| 3935 | { |
| 3936 | sep = parse_operand_and_eval (&e, ','); |
| 3937 | qp = 0; |
| 3938 | } |
| 3939 | convert_expr_to_ab_reg (&e, &ab, ®, po, 1 + pred); |
| 3940 | |
| 3941 | if (sep == ',') |
| 3942 | sep = parse_operand_and_eval (&e, ','); |
| 3943 | else |
| 3944 | e.X_op = O_absent; |
| 3945 | if (e.X_op != O_constant) |
| 3946 | { |
| 3947 | as_bad (_("Operand %d to .%s must be a constant"), 2 + pred, po); |
| 3948 | e.X_add_number = 0; |
| 3949 | } |
| 3950 | |
| 3951 | if (psprel) |
| 3952 | add_unwind_entry (output_spill_psprel (ab, reg, e.X_add_number, qp), sep); |
| 3953 | else |
| 3954 | add_unwind_entry (output_spill_sprel (ab, reg, e.X_add_number, qp), sep); |
| 3955 | } |
| 3956 | |
| 3957 | static unsigned int |
| 3958 | get_saved_prologue_count (unsigned long lbl) |
| 3959 | { |
| 3960 | label_prologue_count *lpc = unwind.saved_prologue_counts; |
| 3961 | |
| 3962 | while (lpc != NULL && lpc->label_number != lbl) |
| 3963 | lpc = lpc->next; |
| 3964 | |
| 3965 | if (lpc != NULL) |
| 3966 | return lpc->prologue_count; |
| 3967 | |
| 3968 | as_bad (_("Missing .label_state %ld"), lbl); |
| 3969 | return 1; |
| 3970 | } |
| 3971 | |
| 3972 | static void |
| 3973 | save_prologue_count (unsigned long lbl, unsigned int count) |
| 3974 | { |
| 3975 | label_prologue_count *lpc = unwind.saved_prologue_counts; |
| 3976 | |
| 3977 | while (lpc != NULL && lpc->label_number != lbl) |
| 3978 | lpc = lpc->next; |
| 3979 | |
| 3980 | if (lpc != NULL) |
| 3981 | lpc->prologue_count = count; |
| 3982 | else |
| 3983 | { |
| 3984 | label_prologue_count *new_lpc = xmalloc (sizeof (* new_lpc)); |
| 3985 | |
| 3986 | new_lpc->next = unwind.saved_prologue_counts; |
| 3987 | new_lpc->label_number = lbl; |
| 3988 | new_lpc->prologue_count = count; |
| 3989 | unwind.saved_prologue_counts = new_lpc; |
| 3990 | } |
| 3991 | } |
| 3992 | |
| 3993 | static void |
| 3994 | free_saved_prologue_counts () |
| 3995 | { |
| 3996 | label_prologue_count *lpc = unwind.saved_prologue_counts; |
| 3997 | label_prologue_count *next; |
| 3998 | |
| 3999 | while (lpc != NULL) |
| 4000 | { |
| 4001 | next = lpc->next; |
| 4002 | free (lpc); |
| 4003 | lpc = next; |
| 4004 | } |
| 4005 | |
| 4006 | unwind.saved_prologue_counts = NULL; |
| 4007 | } |
| 4008 | |
| 4009 | static void |
| 4010 | dot_label_state (int dummy ATTRIBUTE_UNUSED) |
| 4011 | { |
| 4012 | expressionS e; |
| 4013 | |
| 4014 | if (!in_body ("label_state")) |
| 4015 | return; |
| 4016 | |
| 4017 | parse_operand_and_eval (&e, 0); |
| 4018 | if (e.X_op == O_constant) |
| 4019 | save_prologue_count (e.X_add_number, unwind.prologue_count); |
| 4020 | else |
| 4021 | { |
| 4022 | as_bad (_("Operand to .label_state must be a constant")); |
| 4023 | e.X_add_number = 0; |
| 4024 | } |
| 4025 | add_unwind_entry (output_label_state (e.X_add_number), 0); |
| 4026 | } |
| 4027 | |
| 4028 | static void |
| 4029 | dot_copy_state (int dummy ATTRIBUTE_UNUSED) |
| 4030 | { |
| 4031 | expressionS e; |
| 4032 | |
| 4033 | if (!in_body ("copy_state")) |
| 4034 | return; |
| 4035 | |
| 4036 | parse_operand_and_eval (&e, 0); |
| 4037 | if (e.X_op == O_constant) |
| 4038 | unwind.prologue_count = get_saved_prologue_count (e.X_add_number); |
| 4039 | else |
| 4040 | { |
| 4041 | as_bad (_("Operand to .copy_state must be a constant")); |
| 4042 | e.X_add_number = 0; |
| 4043 | } |
| 4044 | add_unwind_entry (output_copy_state (e.X_add_number), 0); |
| 4045 | } |
| 4046 | |
| 4047 | static void |
| 4048 | dot_unwabi (int dummy ATTRIBUTE_UNUSED) |
| 4049 | { |
| 4050 | expressionS e1, e2; |
| 4051 | unsigned char sep; |
| 4052 | |
| 4053 | if (!in_prologue ("unwabi")) |
| 4054 | return; |
| 4055 | |
| 4056 | sep = parse_operand_and_eval (&e1, ','); |
| 4057 | if (sep == ',') |
| 4058 | parse_operand_and_eval (&e2, 0); |
| 4059 | else |
| 4060 | e2.X_op = O_absent; |
| 4061 | |
| 4062 | if (e1.X_op != O_constant) |
| 4063 | { |
| 4064 | as_bad (_("First operand to .unwabi must be a constant")); |
| 4065 | e1.X_add_number = 0; |
| 4066 | } |
| 4067 | |
| 4068 | if (e2.X_op != O_constant) |
| 4069 | { |
| 4070 | as_bad (_("Second operand to .unwabi must be a constant")); |
| 4071 | e2.X_add_number = 0; |
| 4072 | } |
| 4073 | |
| 4074 | add_unwind_entry (output_unwabi (e1.X_add_number, e2.X_add_number), 0); |
| 4075 | } |
| 4076 | |
| 4077 | static void |
| 4078 | dot_personality (int dummy ATTRIBUTE_UNUSED) |
| 4079 | { |
| 4080 | char *name, *p, c; |
| 4081 | if (!in_procedure ("personality")) |
| 4082 | return; |
| 4083 | SKIP_WHITESPACE (); |
| 4084 | name = input_line_pointer; |
| 4085 | c = get_symbol_end (); |
| 4086 | p = input_line_pointer; |
| 4087 | unwind.personality_routine = symbol_find_or_make (name); |
| 4088 | unwind.force_unwind_entry = 1; |
| 4089 | *p = c; |
| 4090 | SKIP_WHITESPACE (); |
| 4091 | demand_empty_rest_of_line (); |
| 4092 | } |
| 4093 | |
| 4094 | static void |
| 4095 | dot_proc (int dummy ATTRIBUTE_UNUSED) |
| 4096 | { |
| 4097 | char *name, *p, c; |
| 4098 | symbolS *sym; |
| 4099 | proc_pending *pending, *last_pending; |
| 4100 | |
| 4101 | if (unwind.proc_pending.sym) |
| 4102 | { |
| 4103 | (md.unwind_check == unwind_check_warning |
| 4104 | ? as_warn |
| 4105 | : as_bad) (_("Missing .endp after previous .proc")); |
| 4106 | while (unwind.proc_pending.next) |
| 4107 | { |
| 4108 | pending = unwind.proc_pending.next; |
| 4109 | unwind.proc_pending.next = pending->next; |
| 4110 | free (pending); |
| 4111 | } |
| 4112 | } |
| 4113 | last_pending = NULL; |
| 4114 | |
| 4115 | /* Parse names of main and alternate entry points and mark them as |
| 4116 | function symbols: */ |
| 4117 | while (1) |
| 4118 | { |
| 4119 | SKIP_WHITESPACE (); |
| 4120 | name = input_line_pointer; |
| 4121 | c = get_symbol_end (); |
| 4122 | p = input_line_pointer; |
| 4123 | if (!*name) |
| 4124 | as_bad (_("Empty argument of .proc")); |
| 4125 | else |
| 4126 | { |
| 4127 | sym = symbol_find_or_make (name); |
| 4128 | if (S_IS_DEFINED (sym)) |
| 4129 | as_bad (_("`%s' was already defined"), name); |
| 4130 | else if (!last_pending) |
| 4131 | { |
| 4132 | unwind.proc_pending.sym = sym; |
| 4133 | last_pending = &unwind.proc_pending; |
| 4134 | } |
| 4135 | else |
| 4136 | { |
| 4137 | pending = xmalloc (sizeof (*pending)); |
| 4138 | pending->sym = sym; |
| 4139 | last_pending = last_pending->next = pending; |
| 4140 | } |
| 4141 | symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION; |
| 4142 | } |
| 4143 | *p = c; |
| 4144 | SKIP_WHITESPACE (); |
| 4145 | if (*input_line_pointer != ',') |
| 4146 | break; |
| 4147 | ++input_line_pointer; |
| 4148 | } |
| 4149 | if (!last_pending) |
| 4150 | { |
| 4151 | unwind.proc_pending.sym = expr_build_dot (); |
| 4152 | last_pending = &unwind.proc_pending; |
| 4153 | } |
| 4154 | last_pending->next = NULL; |
| 4155 | demand_empty_rest_of_line (); |
| 4156 | ia64_do_align (16); |
| 4157 | |
| 4158 | unwind.prologue = 0; |
| 4159 | unwind.prologue_count = 0; |
| 4160 | unwind.body = 0; |
| 4161 | unwind.insn = 0; |
| 4162 | unwind.list = unwind.tail = unwind.current_entry = NULL; |
| 4163 | unwind.personality_routine = 0; |
| 4164 | } |
| 4165 | |
| 4166 | static void |
| 4167 | dot_body (int dummy ATTRIBUTE_UNUSED) |
| 4168 | { |
| 4169 | if (!in_procedure ("body")) |
| 4170 | return; |
| 4171 | if (!unwind.prologue && !unwind.body && unwind.insn) |
| 4172 | as_warn (_("Initial .body should precede any instructions")); |
| 4173 | check_pending_save (); |
| 4174 | |
| 4175 | unwind.prologue = 0; |
| 4176 | unwind.prologue_mask = 0; |
| 4177 | unwind.body = 1; |
| 4178 | |
| 4179 | add_unwind_entry (output_body (), 0); |
| 4180 | } |
| 4181 | |
| 4182 | static void |
| 4183 | dot_prologue (int dummy ATTRIBUTE_UNUSED) |
| 4184 | { |
| 4185 | unsigned mask = 0, grsave = 0; |
| 4186 | |
| 4187 | if (!in_procedure ("prologue")) |
| 4188 | return; |
| 4189 | if (unwind.prologue) |
| 4190 | { |
| 4191 | as_bad (_(".prologue within prologue")); |
| 4192 | ignore_rest_of_line (); |
| 4193 | return; |
| 4194 | } |
| 4195 | if (!unwind.body && unwind.insn) |
| 4196 | as_warn (_("Initial .prologue should precede any instructions")); |
| 4197 | |
| 4198 | if (!is_it_end_of_statement ()) |
| 4199 | { |
| 4200 | expressionS e; |
| 4201 | int n, sep = parse_operand_and_eval (&e, ','); |
| 4202 | |
| 4203 | if (e.X_op != O_constant |
| 4204 | || e.X_add_number < 0 |
| 4205 | || e.X_add_number > 0xf) |
| 4206 | as_bad (_("First operand to .prologue must be a positive 4-bit constant")); |
| 4207 | else if (e.X_add_number == 0) |
| 4208 | as_warn (_("Pointless use of zero first operand to .prologue")); |
| 4209 | else |
| 4210 | mask = e.X_add_number; |
| 4211 | n = popcount (mask); |
| 4212 | |
| 4213 | if (sep == ',') |
| 4214 | parse_operand_and_eval (&e, 0); |
| 4215 | else |
| 4216 | e.X_op = O_absent; |
| 4217 | if (e.X_op == O_constant |
| 4218 | && e.X_add_number >= 0 |
| 4219 | && e.X_add_number < 128) |
| 4220 | { |
| 4221 | if (md.unwind_check == unwind_check_error) |
| 4222 | as_warn (_("Using a constant as second operand to .prologue is deprecated")); |
| 4223 | grsave = e.X_add_number; |
| 4224 | } |
| 4225 | else if (e.X_op != O_register |
| 4226 | || (grsave = e.X_add_number - REG_GR) > 127) |
| 4227 | { |
| 4228 | as_bad (_("Second operand to .prologue must be a general register")); |
| 4229 | grsave = 0; |
| 4230 | } |
| 4231 | else if (grsave > 128U - n) |
| 4232 | { |
| 4233 | as_bad (_("Second operand to .prologue must be the first of %d general registers"), n); |
| 4234 | grsave = 0; |
| 4235 | } |
| 4236 | |
| 4237 | } |
| 4238 | |
| 4239 | if (mask) |
| 4240 | add_unwind_entry (output_prologue_gr (mask, grsave), 0); |
| 4241 | else |
| 4242 | add_unwind_entry (output_prologue (), 0); |
| 4243 | |
| 4244 | unwind.prologue = 1; |
| 4245 | unwind.prologue_mask = mask; |
| 4246 | unwind.prologue_gr = grsave; |
| 4247 | unwind.body = 0; |
| 4248 | ++unwind.prologue_count; |
| 4249 | } |
| 4250 | |
| 4251 | static void |
| 4252 | dot_endp (int dummy ATTRIBUTE_UNUSED) |
| 4253 | { |
| 4254 | expressionS e; |
| 4255 | int bytes_per_address; |
| 4256 | long where; |
| 4257 | segT saved_seg; |
| 4258 | subsegT saved_subseg; |
| 4259 | proc_pending *pending; |
| 4260 | int unwind_check = md.unwind_check; |
| 4261 | |
| 4262 | md.unwind_check = unwind_check_error; |
| 4263 | if (!in_procedure ("endp")) |
| 4264 | return; |
| 4265 | md.unwind_check = unwind_check; |
| 4266 | |
| 4267 | if (unwind.saved_text_seg) |
| 4268 | { |
| 4269 | saved_seg = unwind.saved_text_seg; |
| 4270 | saved_subseg = unwind.saved_text_subseg; |
| 4271 | unwind.saved_text_seg = NULL; |
| 4272 | } |
| 4273 | else |
| 4274 | { |
| 4275 | saved_seg = now_seg; |
| 4276 | saved_subseg = now_subseg; |
| 4277 | } |
| 4278 | |
| 4279 | insn_group_break (1, 0, 0); |
| 4280 | |
| 4281 | /* If there wasn't a .handlerdata, we haven't generated an image yet. */ |
| 4282 | if (!unwind.info) |
| 4283 | generate_unwind_image (saved_seg); |
| 4284 | |
| 4285 | if (unwind.info || unwind.force_unwind_entry) |
| 4286 | { |
| 4287 | symbolS *proc_end; |
| 4288 | |
| 4289 | subseg_set (md.last_text_seg, 0); |
| 4290 | proc_end = expr_build_dot (); |
| 4291 | |
| 4292 | start_unwind_section (saved_seg, SPECIAL_SECTION_UNWIND); |
| 4293 | |
| 4294 | /* Make sure that section has 4 byte alignment for ILP32 and |
| 4295 | 8 byte alignment for LP64. */ |
| 4296 | record_alignment (now_seg, md.pointer_size_shift); |
| 4297 | |
| 4298 | /* Need space for 3 pointers for procedure start, procedure end, |
| 4299 | and unwind info. */ |
| 4300 | memset (frag_more (3 * md.pointer_size), 0, 3 * md.pointer_size); |
| 4301 | where = frag_now_fix () - (3 * md.pointer_size); |
| 4302 | bytes_per_address = bfd_arch_bits_per_address (stdoutput) / 8; |
| 4303 | |
| 4304 | /* Issue the values of a) Proc Begin, b) Proc End, c) Unwind Record. */ |
| 4305 | e.X_op = O_pseudo_fixup; |
| 4306 | e.X_op_symbol = pseudo_func[FUNC_SEG_RELATIVE].u.sym; |
| 4307 | e.X_add_number = 0; |
| 4308 | if (!S_IS_LOCAL (unwind.proc_pending.sym) |
| 4309 | && S_IS_DEFINED (unwind.proc_pending.sym)) |
| 4310 | e.X_add_symbol = symbol_temp_new (S_GET_SEGMENT (unwind.proc_pending.sym), |
| 4311 | S_GET_VALUE (unwind.proc_pending.sym), |
| 4312 | symbol_get_frag (unwind.proc_pending.sym)); |
| 4313 | else |
| 4314 | e.X_add_symbol = unwind.proc_pending.sym; |
| 4315 | ia64_cons_fix_new (frag_now, where, bytes_per_address, &e); |
| 4316 | |
| 4317 | e.X_op = O_pseudo_fixup; |
| 4318 | e.X_op_symbol = pseudo_func[FUNC_SEG_RELATIVE].u.sym; |
| 4319 | e.X_add_number = 0; |
| 4320 | e.X_add_symbol = proc_end; |
| 4321 | ia64_cons_fix_new (frag_now, where + bytes_per_address, |
| 4322 | bytes_per_address, &e); |
| 4323 | |
| 4324 | if (unwind.info) |
| 4325 | { |
| 4326 | e.X_op = O_pseudo_fixup; |
| 4327 | e.X_op_symbol = pseudo_func[FUNC_SEG_RELATIVE].u.sym; |
| 4328 | e.X_add_number = 0; |
| 4329 | e.X_add_symbol = unwind.info; |
| 4330 | ia64_cons_fix_new (frag_now, where + (bytes_per_address * 2), |
| 4331 | bytes_per_address, &e); |
| 4332 | } |
| 4333 | } |
| 4334 | subseg_set (saved_seg, saved_subseg); |
| 4335 | |
| 4336 | /* Set symbol sizes. */ |
| 4337 | pending = &unwind.proc_pending; |
| 4338 | if (S_GET_NAME (pending->sym)) |
| 4339 | { |
| 4340 | do |
| 4341 | { |
| 4342 | symbolS *sym = pending->sym; |
| 4343 | |
| 4344 | if (!S_IS_DEFINED (sym)) |
| 4345 | as_bad (_("`%s' was not defined within procedure"), S_GET_NAME (sym)); |
| 4346 | else if (S_GET_SIZE (sym) == 0 |
| 4347 | && symbol_get_obj (sym)->size == NULL) |
| 4348 | { |
| 4349 | fragS *frag = symbol_get_frag (sym); |
| 4350 | |
| 4351 | if (frag) |
| 4352 | { |
| 4353 | if (frag == frag_now && SEG_NORMAL (now_seg)) |
| 4354 | S_SET_SIZE (sym, frag_now_fix () - S_GET_VALUE (sym)); |
| 4355 | else |
| 4356 | { |
| 4357 | symbol_get_obj (sym)->size = |
| 4358 | (expressionS *) xmalloc (sizeof (expressionS)); |
| 4359 | symbol_get_obj (sym)->size->X_op = O_subtract; |
| 4360 | symbol_get_obj (sym)->size->X_add_symbol |
| 4361 | = symbol_new (FAKE_LABEL_NAME, now_seg, |
| 4362 | frag_now_fix (), frag_now); |
| 4363 | symbol_get_obj (sym)->size->X_op_symbol = sym; |
| 4364 | symbol_get_obj (sym)->size->X_add_number = 0; |
| 4365 | } |
| 4366 | } |
| 4367 | } |
| 4368 | } while ((pending = pending->next) != NULL); |
| 4369 | } |
| 4370 | |
| 4371 | /* Parse names of main and alternate entry points. */ |
| 4372 | while (1) |
| 4373 | { |
| 4374 | char *name, *p, c; |
| 4375 | |
| 4376 | SKIP_WHITESPACE (); |
| 4377 | name = input_line_pointer; |
| 4378 | c = get_symbol_end (); |
| 4379 | p = input_line_pointer; |
| 4380 | if (!*name) |
| 4381 | (md.unwind_check == unwind_check_warning |
| 4382 | ? as_warn |
| 4383 | : as_bad) (_("Empty argument of .endp")); |
| 4384 | else |
| 4385 | { |
| 4386 | symbolS *sym = symbol_find (name); |
| 4387 | |
| 4388 | for (pending = &unwind.proc_pending; pending; pending = pending->next) |
| 4389 | { |
| 4390 | if (sym == pending->sym) |
| 4391 | { |
| 4392 | pending->sym = NULL; |
| 4393 | break; |
| 4394 | } |
| 4395 | } |
| 4396 | if (!sym || !pending) |
| 4397 | as_warn (_("`%s' was not specified with previous .proc"), name); |
| 4398 | } |
| 4399 | *p = c; |
| 4400 | SKIP_WHITESPACE (); |
| 4401 | if (*input_line_pointer != ',') |
| 4402 | break; |
| 4403 | ++input_line_pointer; |
| 4404 | } |
| 4405 | demand_empty_rest_of_line (); |
| 4406 | |
| 4407 | /* Deliberately only checking for the main entry point here; the |
| 4408 | language spec even says all arguments to .endp are ignored. */ |
| 4409 | if (unwind.proc_pending.sym |
| 4410 | && S_GET_NAME (unwind.proc_pending.sym) |
| 4411 | && strcmp (S_GET_NAME (unwind.proc_pending.sym), FAKE_LABEL_NAME)) |
| 4412 | as_warn (_("`%s' should be an operand to this .endp"), |
| 4413 | S_GET_NAME (unwind.proc_pending.sym)); |
| 4414 | while (unwind.proc_pending.next) |
| 4415 | { |
| 4416 | pending = unwind.proc_pending.next; |
| 4417 | unwind.proc_pending.next = pending->next; |
| 4418 | free (pending); |
| 4419 | } |
| 4420 | unwind.proc_pending.sym = unwind.info = NULL; |
| 4421 | } |
| 4422 | |
| 4423 | static void |
| 4424 | dot_template (int template_val) |
| 4425 | { |
| 4426 | CURR_SLOT.user_template = template_val; |
| 4427 | } |
| 4428 | |
| 4429 | static void |
| 4430 | dot_regstk (int dummy ATTRIBUTE_UNUSED) |
| 4431 | { |
| 4432 | int ins, locs, outs, rots; |
| 4433 | |
| 4434 | if (is_it_end_of_statement ()) |
| 4435 | ins = locs = outs = rots = 0; |
| 4436 | else |
| 4437 | { |
| 4438 | ins = get_absolute_expression (); |
| 4439 | if (*input_line_pointer++ != ',') |
| 4440 | goto err; |
| 4441 | locs = get_absolute_expression (); |
| 4442 | if (*input_line_pointer++ != ',') |
| 4443 | goto err; |
| 4444 | outs = get_absolute_expression (); |
| 4445 | if (*input_line_pointer++ != ',') |
| 4446 | goto err; |
| 4447 | rots = get_absolute_expression (); |
| 4448 | } |
| 4449 | set_regstack (ins, locs, outs, rots); |
| 4450 | return; |
| 4451 | |
| 4452 | err: |
| 4453 | as_bad (_("Comma expected")); |
| 4454 | ignore_rest_of_line (); |
| 4455 | } |
| 4456 | |
| 4457 | static void |
| 4458 | dot_rot (int type) |
| 4459 | { |
| 4460 | offsetT num_regs; |
| 4461 | valueT num_alloced = 0; |
| 4462 | struct dynreg **drpp, *dr; |
| 4463 | int ch, base_reg = 0; |
| 4464 | char *name, *start; |
| 4465 | size_t len; |
| 4466 | |
| 4467 | switch (type) |
| 4468 | { |
| 4469 | case DYNREG_GR: base_reg = REG_GR + 32; break; |
| 4470 | case DYNREG_FR: base_reg = REG_FR + 32; break; |
| 4471 | case DYNREG_PR: base_reg = REG_P + 16; break; |
| 4472 | default: break; |
| 4473 | } |
| 4474 | |
| 4475 | /* First, remove existing names from hash table. */ |
| 4476 | for (dr = md.dynreg[type]; dr && dr->num_regs; dr = dr->next) |
| 4477 | { |
| 4478 | hash_delete (md.dynreg_hash, dr->name, FALSE); |
| 4479 | /* FIXME: Free dr->name. */ |
| 4480 | dr->num_regs = 0; |
| 4481 | } |
| 4482 | |
| 4483 | drpp = &md.dynreg[type]; |
| 4484 | while (1) |
| 4485 | { |
| 4486 | start = input_line_pointer; |
| 4487 | ch = get_symbol_end (); |
| 4488 | len = strlen (ia64_canonicalize_symbol_name (start)); |
| 4489 | *input_line_pointer = ch; |
| 4490 | |
| 4491 | SKIP_WHITESPACE (); |
| 4492 | if (*input_line_pointer != '[') |
| 4493 | { |
| 4494 | as_bad (_("Expected '['")); |
| 4495 | goto err; |
| 4496 | } |
| 4497 | ++input_line_pointer; /* skip '[' */ |
| 4498 | |
| 4499 | num_regs = get_absolute_expression (); |
| 4500 | |
| 4501 | if (*input_line_pointer++ != ']') |
| 4502 | { |
| 4503 | as_bad (_("Expected ']'")); |
| 4504 | goto err; |
| 4505 | } |
| 4506 | if (num_regs <= 0) |
| 4507 | { |
| 4508 | as_bad (_("Number of elements must be positive")); |
| 4509 | goto err; |
| 4510 | } |
| 4511 | SKIP_WHITESPACE (); |
| 4512 | |
| 4513 | num_alloced += num_regs; |
| 4514 | switch (type) |
| 4515 | { |
| 4516 | case DYNREG_GR: |
| 4517 | if (num_alloced > md.rot.num_regs) |
| 4518 | { |
| 4519 | as_bad (_("Used more than the declared %d rotating registers"), |
| 4520 | md.rot.num_regs); |
| 4521 | goto err; |
| 4522 | } |
| 4523 | break; |
| 4524 | case DYNREG_FR: |
| 4525 | if (num_alloced > 96) |
| 4526 | { |
| 4527 | as_bad (_("Used more than the available 96 rotating registers")); |
| 4528 | goto err; |
| 4529 | } |
| 4530 | break; |
| 4531 | case DYNREG_PR: |
| 4532 | if (num_alloced > 48) |
| 4533 | { |
| 4534 | as_bad (_("Used more than the available 48 rotating registers")); |
| 4535 | goto err; |
| 4536 | } |
| 4537 | break; |
| 4538 | |
| 4539 | default: |
| 4540 | break; |
| 4541 | } |
| 4542 | |
| 4543 | if (!*drpp) |
| 4544 | { |
| 4545 | *drpp = obstack_alloc (¬es, sizeof (*dr)); |
| 4546 | memset (*drpp, 0, sizeof (*dr)); |
| 4547 | } |
| 4548 | |
| 4549 | name = obstack_alloc (¬es, len + 1); |
| 4550 | memcpy (name, start, len); |
| 4551 | name[len] = '\0'; |
| 4552 | |
| 4553 | dr = *drpp; |
| 4554 | dr->name = name; |
| 4555 | dr->num_regs = num_regs; |
| 4556 | dr->base = base_reg; |
| 4557 | drpp = &dr->next; |
| 4558 | base_reg += num_regs; |
| 4559 | |
| 4560 | if (hash_insert (md.dynreg_hash, name, dr)) |
| 4561 | { |
| 4562 | as_bad (_("Attempt to redefine register set `%s'"), name); |
| 4563 | obstack_free (¬es, name); |
| 4564 | goto err; |
| 4565 | } |
| 4566 | |
| 4567 | if (*input_line_pointer != ',') |
| 4568 | break; |
| 4569 | ++input_line_pointer; /* skip comma */ |
| 4570 | SKIP_WHITESPACE (); |
| 4571 | } |
| 4572 | demand_empty_rest_of_line (); |
| 4573 | return; |
| 4574 | |
| 4575 | err: |
| 4576 | ignore_rest_of_line (); |
| 4577 | } |
| 4578 | |
| 4579 | static void |
| 4580 | dot_byteorder (int byteorder) |
| 4581 | { |
| 4582 | segment_info_type *seginfo = seg_info (now_seg); |
| 4583 | |
| 4584 | if (byteorder == -1) |
| 4585 | { |
| 4586 | if (seginfo->tc_segment_info_data.endian == 0) |
| 4587 | seginfo->tc_segment_info_data.endian = default_big_endian ? 1 : 2; |
| 4588 | byteorder = seginfo->tc_segment_info_data.endian == 1; |
| 4589 | } |
| 4590 | else |
| 4591 | seginfo->tc_segment_info_data.endian = byteorder ? 1 : 2; |
| 4592 | |
| 4593 | if (target_big_endian != byteorder) |
| 4594 | { |
| 4595 | target_big_endian = byteorder; |
| 4596 | if (target_big_endian) |
| 4597 | { |
| 4598 | ia64_number_to_chars = number_to_chars_bigendian; |
| 4599 | ia64_float_to_chars = ia64_float_to_chars_bigendian; |
| 4600 | } |
| 4601 | else |
| 4602 | { |
| 4603 | ia64_number_to_chars = number_to_chars_littleendian; |
| 4604 | ia64_float_to_chars = ia64_float_to_chars_littleendian; |
| 4605 | } |
| 4606 | } |
| 4607 | } |
| 4608 | |
| 4609 | static void |
| 4610 | dot_psr (int dummy ATTRIBUTE_UNUSED) |
| 4611 | { |
| 4612 | char *option; |
| 4613 | int ch; |
| 4614 | |
| 4615 | while (1) |
| 4616 | { |
| 4617 | option = input_line_pointer; |
| 4618 | ch = get_symbol_end (); |
| 4619 | if (strcmp (option, "lsb") == 0) |
| 4620 | md.flags &= ~EF_IA_64_BE; |
| 4621 | else if (strcmp (option, "msb") == 0) |
| 4622 | md.flags |= EF_IA_64_BE; |
| 4623 | else if (strcmp (option, "abi32") == 0) |
| 4624 | md.flags &= ~EF_IA_64_ABI64; |
| 4625 | else if (strcmp (option, "abi64") == 0) |
| 4626 | md.flags |= EF_IA_64_ABI64; |
| 4627 | else |
| 4628 | as_bad (_("Unknown psr option `%s'"), option); |
| 4629 | *input_line_pointer = ch; |
| 4630 | |
| 4631 | SKIP_WHITESPACE (); |
| 4632 | if (*input_line_pointer != ',') |
| 4633 | break; |
| 4634 | |
| 4635 | ++input_line_pointer; |
| 4636 | SKIP_WHITESPACE (); |
| 4637 | } |
| 4638 | demand_empty_rest_of_line (); |
| 4639 | } |
| 4640 | |
| 4641 | static void |
| 4642 | dot_ln (int dummy ATTRIBUTE_UNUSED) |
| 4643 | { |
| 4644 | new_logical_line (0, get_absolute_expression ()); |
| 4645 | demand_empty_rest_of_line (); |
| 4646 | } |
| 4647 | |
| 4648 | static void |
| 4649 | cross_section (int ref, void (*builder) (int), int ua) |
| 4650 | { |
| 4651 | char *start, *end; |
| 4652 | int saved_auto_align; |
| 4653 | unsigned int section_count; |
| 4654 | |
| 4655 | SKIP_WHITESPACE (); |
| 4656 | start = input_line_pointer; |
| 4657 | if (*start == '"') |
| 4658 | { |
| 4659 | int len; |
| 4660 | char *name; |
| 4661 | |
| 4662 | name = demand_copy_C_string (&len); |
| 4663 | obstack_free(¬es, name); |
| 4664 | if (!name) |
| 4665 | { |
| 4666 | ignore_rest_of_line (); |
| 4667 | return; |
| 4668 | } |
| 4669 | } |
| 4670 | else |
| 4671 | { |
| 4672 | char c = get_symbol_end (); |
| 4673 | |
| 4674 | if (input_line_pointer == start) |
| 4675 | { |
| 4676 | as_bad (_("Missing section name")); |
| 4677 | ignore_rest_of_line (); |
| 4678 | return; |
| 4679 | } |
| 4680 | *input_line_pointer = c; |
| 4681 | } |
| 4682 | end = input_line_pointer; |
| 4683 | SKIP_WHITESPACE (); |
| 4684 | if (*input_line_pointer != ',') |
| 4685 | { |
| 4686 | as_bad (_("Comma expected after section name")); |
| 4687 | ignore_rest_of_line (); |
| 4688 | return; |
| 4689 | } |
| 4690 | *end = '\0'; |
| 4691 | end = input_line_pointer + 1; /* skip comma */ |
| 4692 | input_line_pointer = start; |
| 4693 | md.keep_pending_output = 1; |
| 4694 | section_count = bfd_count_sections (stdoutput); |
| 4695 | obj_elf_section (0); |
| 4696 | if (section_count != bfd_count_sections (stdoutput)) |
| 4697 | as_warn (_("Creating sections with .xdataN/.xrealN/.xstringZ is deprecated.")); |
| 4698 | input_line_pointer = end; |
| 4699 | saved_auto_align = md.auto_align; |
| 4700 | if (ua) |
| 4701 | md.auto_align = 0; |
| 4702 | (*builder) (ref); |
| 4703 | if (ua) |
| 4704 | md.auto_align = saved_auto_align; |
| 4705 | obj_elf_previous (0); |
| 4706 | md.keep_pending_output = 0; |
| 4707 | } |
| 4708 | |
| 4709 | static void |
| 4710 | dot_xdata (int size) |
| 4711 | { |
| 4712 | cross_section (size, cons, 0); |
| 4713 | } |
| 4714 | |
| 4715 | /* Why doesn't float_cons() call md_cons_align() the way cons() does? */ |
| 4716 | |
| 4717 | static void |
| 4718 | stmt_float_cons (int kind) |
| 4719 | { |
| 4720 | size_t alignment; |
| 4721 | |
| 4722 | switch (kind) |
| 4723 | { |
| 4724 | case 'd': |
| 4725 | alignment = 8; |
| 4726 | break; |
| 4727 | |
| 4728 | case 'x': |
| 4729 | case 'X': |
| 4730 | alignment = 16; |
| 4731 | break; |
| 4732 | |
| 4733 | case 'f': |
| 4734 | default: |
| 4735 | alignment = 4; |
| 4736 | break; |
| 4737 | } |
| 4738 | ia64_do_align (alignment); |
| 4739 | float_cons (kind); |
| 4740 | } |
| 4741 | |
| 4742 | static void |
| 4743 | stmt_cons_ua (int size) |
| 4744 | { |
| 4745 | int saved_auto_align = md.auto_align; |
| 4746 | |
| 4747 | md.auto_align = 0; |
| 4748 | cons (size); |
| 4749 | md.auto_align = saved_auto_align; |
| 4750 | } |
| 4751 | |
| 4752 | static void |
| 4753 | dot_xfloat_cons (int kind) |
| 4754 | { |
| 4755 | cross_section (kind, stmt_float_cons, 0); |
| 4756 | } |
| 4757 | |
| 4758 | static void |
| 4759 | dot_xstringer (int zero) |
| 4760 | { |
| 4761 | cross_section (zero, stringer, 0); |
| 4762 | } |
| 4763 | |
| 4764 | static void |
| 4765 | dot_xdata_ua (int size) |
| 4766 | { |
| 4767 | cross_section (size, cons, 1); |
| 4768 | } |
| 4769 | |
| 4770 | static void |
| 4771 | dot_xfloat_cons_ua (int kind) |
| 4772 | { |
| 4773 | cross_section (kind, float_cons, 1); |
| 4774 | } |
| 4775 | |
| 4776 | /* .reg.val <regname>,value */ |
| 4777 | |
| 4778 | static void |
| 4779 | dot_reg_val (int dummy ATTRIBUTE_UNUSED) |
| 4780 | { |
| 4781 | expressionS reg; |
| 4782 | |
| 4783 | expression_and_evaluate (®); |
| 4784 | if (reg.X_op != O_register) |
| 4785 | { |
| 4786 | as_bad (_("Register name expected")); |
| 4787 | ignore_rest_of_line (); |
| 4788 | } |
| 4789 | else if (*input_line_pointer++ != ',') |
| 4790 | { |
| 4791 | as_bad (_("Comma expected")); |
| 4792 | ignore_rest_of_line (); |
| 4793 | } |
| 4794 | else |
| 4795 | { |
| 4796 | valueT value = get_absolute_expression (); |
| 4797 | int regno = reg.X_add_number; |
| 4798 | if (regno <= REG_GR || regno > REG_GR + 127) |
| 4799 | as_warn (_("Register value annotation ignored")); |
| 4800 | else |
| 4801 | { |
| 4802 | gr_values[regno - REG_GR].known = 1; |
| 4803 | gr_values[regno - REG_GR].value = value; |
| 4804 | gr_values[regno - REG_GR].path = md.path; |
| 4805 | } |
| 4806 | } |
| 4807 | demand_empty_rest_of_line (); |
| 4808 | } |
| 4809 | |
| 4810 | /* |
| 4811 | .serialize.data |
| 4812 | .serialize.instruction |
| 4813 | */ |
| 4814 | static void |
| 4815 | dot_serialize (int type) |
| 4816 | { |
| 4817 | insn_group_break (0, 0, 0); |
| 4818 | if (type) |
| 4819 | instruction_serialization (); |
| 4820 | else |
| 4821 | data_serialization (); |
| 4822 | insn_group_break (0, 0, 0); |
| 4823 | demand_empty_rest_of_line (); |
| 4824 | } |
| 4825 | |
| 4826 | /* select dv checking mode |
| 4827 | .auto |
| 4828 | .explicit |
| 4829 | .default |
| 4830 | |
| 4831 | A stop is inserted when changing modes |
| 4832 | */ |
| 4833 | |
| 4834 | static void |
| 4835 | dot_dv_mode (int type) |
| 4836 | { |
| 4837 | if (md.manual_bundling) |
| 4838 | as_warn (_("Directive invalid within a bundle")); |
| 4839 | |
| 4840 | if (type == 'E' || type == 'A') |
| 4841 | md.mode_explicitly_set = 0; |
| 4842 | else |
| 4843 | md.mode_explicitly_set = 1; |
| 4844 | |
| 4845 | md.detect_dv = 1; |
| 4846 | switch (type) |
| 4847 | { |
| 4848 | case 'A': |
| 4849 | case 'a': |
| 4850 | if (md.explicit_mode) |
| 4851 | insn_group_break (1, 0, 0); |
| 4852 | md.explicit_mode = 0; |
| 4853 | break; |
| 4854 | case 'E': |
| 4855 | case 'e': |
| 4856 | if (!md.explicit_mode) |
| 4857 | insn_group_break (1, 0, 0); |
| 4858 | md.explicit_mode = 1; |
| 4859 | break; |
| 4860 | default: |
| 4861 | case 'd': |
| 4862 | if (md.explicit_mode != md.default_explicit_mode) |
| 4863 | insn_group_break (1, 0, 0); |
| 4864 | md.explicit_mode = md.default_explicit_mode; |
| 4865 | md.mode_explicitly_set = 0; |
| 4866 | break; |
| 4867 | } |
| 4868 | } |
| 4869 | |
| 4870 | static void |
| 4871 | print_prmask (valueT mask) |
| 4872 | { |
| 4873 | int regno; |
| 4874 | char *comma = ""; |
| 4875 | for (regno = 0; regno < 64; regno++) |
| 4876 | { |
| 4877 | if (mask & ((valueT) 1 << regno)) |
| 4878 | { |
| 4879 | fprintf (stderr, "%s p%d", comma, regno); |
| 4880 | comma = ","; |
| 4881 | } |
| 4882 | } |
| 4883 | } |
| 4884 | |
| 4885 | /* |
| 4886 | .pred.rel.clear [p1 [,p2 [,...]]] (also .pred.rel "clear" or @clear) |
| 4887 | .pred.rel.imply p1, p2 (also .pred.rel "imply" or @imply) |
| 4888 | .pred.rel.mutex p1, p2 [,...] (also .pred.rel "mutex" or @mutex) |
| 4889 | .pred.safe_across_calls p1 [, p2 [,...]] |
| 4890 | */ |
| 4891 | |
| 4892 | static void |
| 4893 | dot_pred_rel (int type) |
| 4894 | { |
| 4895 | valueT mask = 0; |
| 4896 | int count = 0; |
| 4897 | int p1 = -1, p2 = -1; |
| 4898 | |
| 4899 | if (type == 0) |
| 4900 | { |
| 4901 | if (*input_line_pointer == '"') |
| 4902 | { |
| 4903 | int len; |
| 4904 | char *form = demand_copy_C_string (&len); |
| 4905 | |
| 4906 | if (strcmp (form, "mutex") == 0) |
| 4907 | type = 'm'; |
| 4908 | else if (strcmp (form, "clear") == 0) |
| 4909 | type = 'c'; |
| 4910 | else if (strcmp (form, "imply") == 0) |
| 4911 | type = 'i'; |
| 4912 | obstack_free (¬es, form); |
| 4913 | } |
| 4914 | else if (*input_line_pointer == '@') |
| 4915 | { |
| 4916 | char *form = ++input_line_pointer; |
| 4917 | char c = get_symbol_end(); |
| 4918 | |
| 4919 | if (strcmp (form, "mutex") == 0) |
| 4920 | type = 'm'; |
| 4921 | else if (strcmp (form, "clear") == 0) |
| 4922 | type = 'c'; |
| 4923 | else if (strcmp (form, "imply") == 0) |
| 4924 | type = 'i'; |
| 4925 | *input_line_pointer = c; |
| 4926 | } |
| 4927 | else |
| 4928 | { |
| 4929 | as_bad (_("Missing predicate relation type")); |
| 4930 | ignore_rest_of_line (); |
| 4931 | return; |
| 4932 | } |
| 4933 | if (type == 0) |
| 4934 | { |
| 4935 | as_bad (_("Unrecognized predicate relation type")); |
| 4936 | ignore_rest_of_line (); |
| 4937 | return; |
| 4938 | } |
| 4939 | if (*input_line_pointer == ',') |
| 4940 | ++input_line_pointer; |
| 4941 | SKIP_WHITESPACE (); |
| 4942 | } |
| 4943 | |
| 4944 | while (1) |
| 4945 | { |
| 4946 | valueT bits = 1; |
| 4947 | int sep, regno; |
| 4948 | expressionS pr, *pr1, *pr2; |
| 4949 | |
| 4950 | sep = parse_operand_and_eval (&pr, ','); |
| 4951 | if (pr.X_op == O_register |
| 4952 | && pr.X_add_number >= REG_P |
| 4953 | && pr.X_add_number <= REG_P + 63) |
| 4954 | { |
| 4955 | regno = pr.X_add_number - REG_P; |
| 4956 | bits <<= regno; |
| 4957 | count++; |
| 4958 | if (p1 == -1) |
| 4959 | p1 = regno; |
| 4960 | else if (p2 == -1) |
| 4961 | p2 = regno; |
| 4962 | } |
| 4963 | else if (type != 'i' |
| 4964 | && pr.X_op == O_subtract |
| 4965 | && (pr1 = symbol_get_value_expression (pr.X_add_symbol)) |
| 4966 | && pr1->X_op == O_register |
| 4967 | && pr1->X_add_number >= REG_P |
| 4968 | && pr1->X_add_number <= REG_P + 63 |
| 4969 | && (pr2 = symbol_get_value_expression (pr.X_op_symbol)) |
| 4970 | && pr2->X_op == O_register |
| 4971 | && pr2->X_add_number >= REG_P |
| 4972 | && pr2->X_add_number <= REG_P + 63) |
| 4973 | { |
| 4974 | /* It's a range. */ |
| 4975 | int stop; |
| 4976 | |
| 4977 | regno = pr1->X_add_number - REG_P; |
| 4978 | stop = pr2->X_add_number - REG_P; |
| 4979 | if (regno >= stop) |
| 4980 | { |
| 4981 | as_bad (_("Bad register range")); |
| 4982 | ignore_rest_of_line (); |
| 4983 | return; |
| 4984 | } |
| 4985 | bits = ((bits << stop) << 1) - (bits << regno); |
| 4986 | count += stop - regno + 1; |
| 4987 | } |
| 4988 | else |
| 4989 | { |
| 4990 | as_bad (_("Predicate register expected")); |
| 4991 | ignore_rest_of_line (); |
| 4992 | return; |
| 4993 | } |
| 4994 | if (mask & bits) |
| 4995 | as_warn (_("Duplicate predicate register ignored")); |
| 4996 | mask |= bits; |
| 4997 | if (sep != ',') |
| 4998 | break; |
| 4999 | } |
| 5000 | |
| 5001 | switch (type) |
| 5002 | { |
| 5003 | case 'c': |
| 5004 | if (count == 0) |
| 5005 | mask = ~(valueT) 0; |
| 5006 | clear_qp_mutex (mask); |
| 5007 | clear_qp_implies (mask, (valueT) 0); |
| 5008 | break; |
| 5009 | case 'i': |
| 5010 | if (count != 2 || p1 == -1 || p2 == -1) |
| 5011 | as_bad (_("Predicate source and target required")); |
| 5012 | else if (p1 == 0 || p2 == 0) |
| 5013 | as_bad (_("Use of p0 is not valid in this context")); |
| 5014 | else |
| 5015 | add_qp_imply (p1, p2); |
| 5016 | break; |
| 5017 | case 'm': |
| 5018 | if (count < 2) |
| 5019 | { |
| 5020 | as_bad (_("At least two PR arguments expected")); |
| 5021 | break; |
| 5022 | } |
| 5023 | else if (mask & 1) |
| 5024 | { |
| 5025 | as_bad (_("Use of p0 is not valid in this context")); |
| 5026 | break; |
| 5027 | } |
| 5028 | add_qp_mutex (mask); |
| 5029 | break; |
| 5030 | case 's': |
| 5031 | /* note that we don't override any existing relations */ |
| 5032 | if (count == 0) |
| 5033 | { |
| 5034 | as_bad (_("At least one PR argument expected")); |
| 5035 | break; |
| 5036 | } |
| 5037 | if (md.debug_dv) |
| 5038 | { |
| 5039 | fprintf (stderr, "Safe across calls: "); |
| 5040 | print_prmask (mask); |
| 5041 | fprintf (stderr, "\n"); |
| 5042 | } |
| 5043 | qp_safe_across_calls = mask; |
| 5044 | break; |
| 5045 | } |
| 5046 | demand_empty_rest_of_line (); |
| 5047 | } |
| 5048 | |
| 5049 | /* .entry label [, label [, ...]] |
| 5050 | Hint to DV code that the given labels are to be considered entry points. |
| 5051 | Otherwise, only global labels are considered entry points. */ |
| 5052 | |
| 5053 | static void |
| 5054 | dot_entry (int dummy ATTRIBUTE_UNUSED) |
| 5055 | { |
| 5056 | const char *err; |
| 5057 | char *name; |
| 5058 | int c; |
| 5059 | symbolS *symbolP; |
| 5060 | |
| 5061 | do |
| 5062 | { |
| 5063 | name = input_line_pointer; |
| 5064 | c = get_symbol_end (); |
| 5065 | symbolP = symbol_find_or_make (name); |
| 5066 | |
| 5067 | err = hash_insert (md.entry_hash, S_GET_NAME (symbolP), (void *) symbolP); |
| 5068 | if (err) |
| 5069 | as_fatal (_("Inserting \"%s\" into entry hint table failed: %s"), |
| 5070 | name, err); |
| 5071 | |
| 5072 | *input_line_pointer = c; |
| 5073 | SKIP_WHITESPACE (); |
| 5074 | c = *input_line_pointer; |
| 5075 | if (c == ',') |
| 5076 | { |
| 5077 | input_line_pointer++; |
| 5078 | SKIP_WHITESPACE (); |
| 5079 | if (*input_line_pointer == '\n') |
| 5080 | c = '\n'; |
| 5081 | } |
| 5082 | } |
| 5083 | while (c == ','); |
| 5084 | |
| 5085 | demand_empty_rest_of_line (); |
| 5086 | } |
| 5087 | |
| 5088 | /* .mem.offset offset, base |
| 5089 | "base" is used to distinguish between offsets from a different base. */ |
| 5090 | |
| 5091 | static void |
| 5092 | dot_mem_offset (int dummy ATTRIBUTE_UNUSED) |
| 5093 | { |
| 5094 | md.mem_offset.hint = 1; |
| 5095 | md.mem_offset.offset = get_absolute_expression (); |
| 5096 | if (*input_line_pointer != ',') |
| 5097 | { |
| 5098 | as_bad (_("Comma expected")); |
| 5099 | ignore_rest_of_line (); |
| 5100 | return; |
| 5101 | } |
| 5102 | ++input_line_pointer; |
| 5103 | md.mem_offset.base = get_absolute_expression (); |
| 5104 | demand_empty_rest_of_line (); |
| 5105 | } |
| 5106 | |
| 5107 | /* ia64-specific pseudo-ops: */ |
| 5108 | const pseudo_typeS md_pseudo_table[] = |
| 5109 | { |
| 5110 | { "radix", dot_radix, 0 }, |
| 5111 | { "lcomm", s_lcomm_bytes, 1 }, |
| 5112 | { "loc", dot_loc, 0 }, |
| 5113 | { "bss", dot_special_section, SPECIAL_SECTION_BSS }, |
| 5114 | { "sbss", dot_special_section, SPECIAL_SECTION_SBSS }, |
| 5115 | { "sdata", dot_special_section, SPECIAL_SECTION_SDATA }, |
| 5116 | { "rodata", dot_special_section, SPECIAL_SECTION_RODATA }, |
| 5117 | { "comment", dot_special_section, SPECIAL_SECTION_COMMENT }, |
| 5118 | { "ia_64.unwind", dot_special_section, SPECIAL_SECTION_UNWIND }, |
| 5119 | { "ia_64.unwind_info", dot_special_section, SPECIAL_SECTION_UNWIND_INFO }, |
| 5120 | { "init_array", dot_special_section, SPECIAL_SECTION_INIT_ARRAY }, |
| 5121 | { "fini_array", dot_special_section, SPECIAL_SECTION_FINI_ARRAY }, |
| 5122 | { "proc", dot_proc, 0 }, |
| 5123 | { "body", dot_body, 0 }, |
| 5124 | { "prologue", dot_prologue, 0 }, |
| 5125 | { "endp", dot_endp, 0 }, |
| 5126 | |
| 5127 | { "fframe", dot_fframe, 0 }, |
| 5128 | { "vframe", dot_vframe, 0 }, |
| 5129 | { "vframesp", dot_vframesp, 0 }, |
| 5130 | { "vframepsp", dot_vframesp, 1 }, |
| 5131 | { "save", dot_save, 0 }, |
| 5132 | { "restore", dot_restore, 0 }, |
| 5133 | { "restorereg", dot_restorereg, 0 }, |
| 5134 | { "restorereg.p", dot_restorereg, 1 }, |
| 5135 | { "handlerdata", dot_handlerdata, 0 }, |
| 5136 | { "unwentry", dot_unwentry, 0 }, |
| 5137 | { "altrp", dot_altrp, 0 }, |
| 5138 | { "savesp", dot_savemem, 0 }, |
| 5139 | { "savepsp", dot_savemem, 1 }, |
| 5140 | { "save.g", dot_saveg, 0 }, |
| 5141 | { "save.f", dot_savef, 0 }, |
| 5142 | { "save.b", dot_saveb, 0 }, |
| 5143 | { "save.gf", dot_savegf, 0 }, |
| 5144 | { "spill", dot_spill, 0 }, |
| 5145 | { "spillreg", dot_spillreg, 0 }, |
| 5146 | { "spillsp", dot_spillmem, 0 }, |
| 5147 | { "spillpsp", dot_spillmem, 1 }, |
| 5148 | { "spillreg.p", dot_spillreg, 1 }, |
| 5149 | { "spillsp.p", dot_spillmem, ~0 }, |
| 5150 | { "spillpsp.p", dot_spillmem, ~1 }, |
| 5151 | { "label_state", dot_label_state, 0 }, |
| 5152 | { "copy_state", dot_copy_state, 0 }, |
| 5153 | { "unwabi", dot_unwabi, 0 }, |
| 5154 | { "personality", dot_personality, 0 }, |
| 5155 | { "mii", dot_template, 0x0 }, |
| 5156 | { "mli", dot_template, 0x2 }, /* old format, for compatibility */ |
| 5157 | { "mlx", dot_template, 0x2 }, |
| 5158 | { "mmi", dot_template, 0x4 }, |
| 5159 | { "mfi", dot_template, 0x6 }, |
| 5160 | { "mmf", dot_template, 0x7 }, |
| 5161 | { "mib", dot_template, 0x8 }, |
| 5162 | { "mbb", dot_template, 0x9 }, |
| 5163 | { "bbb", dot_template, 0xb }, |
| 5164 | { "mmb", dot_template, 0xc }, |
| 5165 | { "mfb", dot_template, 0xe }, |
| 5166 | { "align", dot_align, 0 }, |
| 5167 | { "regstk", dot_regstk, 0 }, |
| 5168 | { "rotr", dot_rot, DYNREG_GR }, |
| 5169 | { "rotf", dot_rot, DYNREG_FR }, |
| 5170 | { "rotp", dot_rot, DYNREG_PR }, |
| 5171 | { "lsb", dot_byteorder, 0 }, |
| 5172 | { "msb", dot_byteorder, 1 }, |
| 5173 | { "psr", dot_psr, 0 }, |
| 5174 | { "alias", dot_alias, 0 }, |
| 5175 | { "secalias", dot_alias, 1 }, |
| 5176 | { "ln", dot_ln, 0 }, /* source line info (for debugging) */ |
| 5177 | |
| 5178 | { "xdata1", dot_xdata, 1 }, |
| 5179 | { "xdata2", dot_xdata, 2 }, |
| 5180 | { "xdata4", dot_xdata, 4 }, |
| 5181 | { "xdata8", dot_xdata, 8 }, |
| 5182 | { "xdata16", dot_xdata, 16 }, |
| 5183 | { "xreal4", dot_xfloat_cons, 'f' }, |
| 5184 | { "xreal8", dot_xfloat_cons, 'd' }, |
| 5185 | { "xreal10", dot_xfloat_cons, 'x' }, |
| 5186 | { "xreal16", dot_xfloat_cons, 'X' }, |
| 5187 | { "xstring", dot_xstringer, 8 + 0 }, |
| 5188 | { "xstringz", dot_xstringer, 8 + 1 }, |
| 5189 | |
| 5190 | /* unaligned versions: */ |
| 5191 | { "xdata2.ua", dot_xdata_ua, 2 }, |
| 5192 | { "xdata4.ua", dot_xdata_ua, 4 }, |
| 5193 | { "xdata8.ua", dot_xdata_ua, 8 }, |
| 5194 | { "xdata16.ua", dot_xdata_ua, 16 }, |
| 5195 | { "xreal4.ua", dot_xfloat_cons_ua, 'f' }, |
| 5196 | { "xreal8.ua", dot_xfloat_cons_ua, 'd' }, |
| 5197 | { "xreal10.ua", dot_xfloat_cons_ua, 'x' }, |
| 5198 | { "xreal16.ua", dot_xfloat_cons_ua, 'X' }, |
| 5199 | |
| 5200 | /* annotations/DV checking support */ |
| 5201 | { "entry", dot_entry, 0 }, |
| 5202 | { "mem.offset", dot_mem_offset, 0 }, |
| 5203 | { "pred.rel", dot_pred_rel, 0 }, |
| 5204 | { "pred.rel.clear", dot_pred_rel, 'c' }, |
| 5205 | { "pred.rel.imply", dot_pred_rel, 'i' }, |
| 5206 | { "pred.rel.mutex", dot_pred_rel, 'm' }, |
| 5207 | { "pred.safe_across_calls", dot_pred_rel, 's' }, |
| 5208 | { "reg.val", dot_reg_val, 0 }, |
| 5209 | { "serialize.data", dot_serialize, 0 }, |
| 5210 | { "serialize.instruction", dot_serialize, 1 }, |
| 5211 | { "auto", dot_dv_mode, 'a' }, |
| 5212 | { "explicit", dot_dv_mode, 'e' }, |
| 5213 | { "default", dot_dv_mode, 'd' }, |
| 5214 | |
| 5215 | /* ??? These are needed to make gas/testsuite/gas/elf/ehopt.s work. |
| 5216 | IA-64 aligns data allocation pseudo-ops by default, so we have to |
| 5217 | tell it that these ones are supposed to be unaligned. Long term, |
| 5218 | should rewrite so that only IA-64 specific data allocation pseudo-ops |
| 5219 | are aligned by default. */ |
| 5220 | {"2byte", stmt_cons_ua, 2}, |
| 5221 | {"4byte", stmt_cons_ua, 4}, |
| 5222 | {"8byte", stmt_cons_ua, 8}, |
| 5223 | |
| 5224 | { NULL, 0, 0 } |
| 5225 | }; |
| 5226 | |
| 5227 | static const struct pseudo_opcode |
| 5228 | { |
| 5229 | const char *name; |
| 5230 | void (*handler) (int); |
| 5231 | int arg; |
| 5232 | } |
| 5233 | pseudo_opcode[] = |
| 5234 | { |
| 5235 | /* these are more like pseudo-ops, but don't start with a dot */ |
| 5236 | { "data1", cons, 1 }, |
| 5237 | { "data2", cons, 2 }, |
| 5238 | { "data4", cons, 4 }, |
| 5239 | { "data8", cons, 8 }, |
| 5240 | { "data16", cons, 16 }, |
| 5241 | { "real4", stmt_float_cons, 'f' }, |
| 5242 | { "real8", stmt_float_cons, 'd' }, |
| 5243 | { "real10", stmt_float_cons, 'x' }, |
| 5244 | { "real16", stmt_float_cons, 'X' }, |
| 5245 | { "string", stringer, 8 + 0 }, |
| 5246 | { "stringz", stringer, 8 + 1 }, |
| 5247 | |
| 5248 | /* unaligned versions: */ |
| 5249 | { "data2.ua", stmt_cons_ua, 2 }, |
| 5250 | { "data4.ua", stmt_cons_ua, 4 }, |
| 5251 | { "data8.ua", stmt_cons_ua, 8 }, |
| 5252 | { "data16.ua", stmt_cons_ua, 16 }, |
| 5253 | { "real4.ua", float_cons, 'f' }, |
| 5254 | { "real8.ua", float_cons, 'd' }, |
| 5255 | { "real10.ua", float_cons, 'x' }, |
| 5256 | { "real16.ua", float_cons, 'X' }, |
| 5257 | }; |
| 5258 | |
| 5259 | /* Declare a register by creating a symbol for it and entering it in |
| 5260 | the symbol table. */ |
| 5261 | |
| 5262 | static symbolS * |
| 5263 | declare_register (const char *name, unsigned int regnum) |
| 5264 | { |
| 5265 | const char *err; |
| 5266 | symbolS *sym; |
| 5267 | |
| 5268 | sym = symbol_create (name, reg_section, regnum, &zero_address_frag); |
| 5269 | |
| 5270 | err = hash_insert (md.reg_hash, S_GET_NAME (sym), (void *) sym); |
| 5271 | if (err) |
| 5272 | as_fatal ("Inserting \"%s\" into register table failed: %s", |
| 5273 | name, err); |
| 5274 | |
| 5275 | return sym; |
| 5276 | } |
| 5277 | |
| 5278 | static void |
| 5279 | declare_register_set (const char *prefix, |
| 5280 | unsigned int num_regs, |
| 5281 | unsigned int base_regnum) |
| 5282 | { |
| 5283 | char name[8]; |
| 5284 | unsigned int i; |
| 5285 | |
| 5286 | for (i = 0; i < num_regs; ++i) |
| 5287 | { |
| 5288 | snprintf (name, sizeof (name), "%s%u", prefix, i); |
| 5289 | declare_register (name, base_regnum + i); |
| 5290 | } |
| 5291 | } |
| 5292 | |
| 5293 | static unsigned int |
| 5294 | operand_width (enum ia64_opnd opnd) |
| 5295 | { |
| 5296 | const struct ia64_operand *odesc = &elf64_ia64_operands[opnd]; |
| 5297 | unsigned int bits = 0; |
| 5298 | int i; |
| 5299 | |
| 5300 | bits = 0; |
| 5301 | for (i = 0; i < NELEMS (odesc->field) && odesc->field[i].bits; ++i) |
| 5302 | bits += odesc->field[i].bits; |
| 5303 | |
| 5304 | return bits; |
| 5305 | } |
| 5306 | |
| 5307 | static enum operand_match_result |
| 5308 | operand_match (const struct ia64_opcode *idesc, int res_index, expressionS *e) |
| 5309 | { |
| 5310 | enum ia64_opnd opnd = idesc->operands[res_index]; |
| 5311 | int bits, relocatable = 0; |
| 5312 | struct insn_fix *fix; |
| 5313 | bfd_signed_vma val; |
| 5314 | |
| 5315 | switch (opnd) |
| 5316 | { |
| 5317 | /* constants: */ |
| 5318 | |
| 5319 | case IA64_OPND_AR_CCV: |
| 5320 | if (e->X_op == O_register && e->X_add_number == REG_AR + 32) |
| 5321 | return OPERAND_MATCH; |
| 5322 | break; |
| 5323 | |
| 5324 | case IA64_OPND_AR_CSD: |
| 5325 | if (e->X_op == O_register && e->X_add_number == REG_AR + 25) |
| 5326 | return OPERAND_MATCH; |
| 5327 | break; |
| 5328 | |
| 5329 | case IA64_OPND_AR_PFS: |
| 5330 | if (e->X_op == O_register && e->X_add_number == REG_AR + 64) |
| 5331 | return OPERAND_MATCH; |
| 5332 | break; |
| 5333 | |
| 5334 | case IA64_OPND_GR0: |
| 5335 | if (e->X_op == O_register && e->X_add_number == REG_GR + 0) |
| 5336 | return OPERAND_MATCH; |
| 5337 | break; |
| 5338 | |
| 5339 | case IA64_OPND_IP: |
| 5340 | if (e->X_op == O_register && e->X_add_number == REG_IP) |
| 5341 | return OPERAND_MATCH; |
| 5342 | break; |
| 5343 | |
| 5344 | case IA64_OPND_PR: |
| 5345 | if (e->X_op == O_register && e->X_add_number == REG_PR) |
| 5346 | return OPERAND_MATCH; |
| 5347 | break; |
| 5348 | |
| 5349 | case IA64_OPND_PR_ROT: |
| 5350 | if (e->X_op == O_register && e->X_add_number == REG_PR_ROT) |
| 5351 | return OPERAND_MATCH; |
| 5352 | break; |
| 5353 | |
| 5354 | case IA64_OPND_PSR: |
| 5355 | if (e->X_op == O_register && e->X_add_number == REG_PSR) |
| 5356 | return OPERAND_MATCH; |
| 5357 | break; |
| 5358 | |
| 5359 | case IA64_OPND_PSR_L: |
| 5360 | if (e->X_op == O_register && e->X_add_number == REG_PSR_L) |
| 5361 | return OPERAND_MATCH; |
| 5362 | break; |
| 5363 | |
| 5364 | case IA64_OPND_PSR_UM: |
| 5365 | if (e->X_op == O_register && e->X_add_number == REG_PSR_UM) |
| 5366 | return OPERAND_MATCH; |
| 5367 | break; |
| 5368 | |
| 5369 | case IA64_OPND_C1: |
| 5370 | if (e->X_op == O_constant) |
| 5371 | { |
| 5372 | if (e->X_add_number == 1) |
| 5373 | return OPERAND_MATCH; |
| 5374 | else |
| 5375 | return OPERAND_OUT_OF_RANGE; |
| 5376 | } |
| 5377 | break; |
| 5378 | |
| 5379 | case IA64_OPND_C8: |
| 5380 | if (e->X_op == O_constant) |
| 5381 | { |
| 5382 | if (e->X_add_number == 8) |
| 5383 | return OPERAND_MATCH; |
| 5384 | else |
| 5385 | return OPERAND_OUT_OF_RANGE; |
| 5386 | } |
| 5387 | break; |
| 5388 | |
| 5389 | case IA64_OPND_C16: |
| 5390 | if (e->X_op == O_constant) |
| 5391 | { |
| 5392 | if (e->X_add_number == 16) |
| 5393 | return OPERAND_MATCH; |
| 5394 | else |
| 5395 | return OPERAND_OUT_OF_RANGE; |
| 5396 | } |
| 5397 | break; |
| 5398 | |
| 5399 | /* register operands: */ |
| 5400 | |
| 5401 | case IA64_OPND_AR3: |
| 5402 | if (e->X_op == O_register && e->X_add_number >= REG_AR |
| 5403 | && e->X_add_number < REG_AR + 128) |
| 5404 | return OPERAND_MATCH; |
| 5405 | break; |
| 5406 | |
| 5407 | case IA64_OPND_B1: |
| 5408 | case IA64_OPND_B2: |
| 5409 | if (e->X_op == O_register && e->X_add_number >= REG_BR |
| 5410 | && e->X_add_number < REG_BR + 8) |
| 5411 | return OPERAND_MATCH; |
| 5412 | break; |
| 5413 | |
| 5414 | case IA64_OPND_CR3: |
| 5415 | if (e->X_op == O_register && e->X_add_number >= REG_CR |
| 5416 | && e->X_add_number < REG_CR + 128) |
| 5417 | return OPERAND_MATCH; |
| 5418 | break; |
| 5419 | |
| 5420 | case IA64_OPND_F1: |
| 5421 | case IA64_OPND_F2: |
| 5422 | case IA64_OPND_F3: |
| 5423 | case IA64_OPND_F4: |
| 5424 | if (e->X_op == O_register && e->X_add_number >= REG_FR |
| 5425 | && e->X_add_number < REG_FR + 128) |
| 5426 | return OPERAND_MATCH; |
| 5427 | break; |
| 5428 | |
| 5429 | case IA64_OPND_P1: |
| 5430 | case IA64_OPND_P2: |
| 5431 | if (e->X_op == O_register && e->X_add_number >= REG_P |
| 5432 | && e->X_add_number < REG_P + 64) |
| 5433 | return OPERAND_MATCH; |
| 5434 | break; |
| 5435 | |
| 5436 | case IA64_OPND_R1: |
| 5437 | case IA64_OPND_R2: |
| 5438 | case IA64_OPND_R3: |
| 5439 | if (e->X_op == O_register && e->X_add_number >= REG_GR |
| 5440 | && e->X_add_number < REG_GR + 128) |
| 5441 | return OPERAND_MATCH; |
| 5442 | break; |
| 5443 | |
| 5444 | case IA64_OPND_R3_2: |
| 5445 | if (e->X_op == O_register && e->X_add_number >= REG_GR) |
| 5446 | { |
| 5447 | if (e->X_add_number < REG_GR + 4) |
| 5448 | return OPERAND_MATCH; |
| 5449 | else if (e->X_add_number < REG_GR + 128) |
| 5450 | return OPERAND_OUT_OF_RANGE; |
| 5451 | } |
| 5452 | break; |
| 5453 | |
| 5454 | /* indirect operands: */ |
| 5455 | case IA64_OPND_CPUID_R3: |
| 5456 | case IA64_OPND_DBR_R3: |
| 5457 | case IA64_OPND_DTR_R3: |
| 5458 | case IA64_OPND_ITR_R3: |
| 5459 | case IA64_OPND_IBR_R3: |
| 5460 | case IA64_OPND_MSR_R3: |
| 5461 | case IA64_OPND_PKR_R3: |
| 5462 | case IA64_OPND_PMC_R3: |
| 5463 | case IA64_OPND_PMD_R3: |
| 5464 | case IA64_OPND_RR_R3: |
| 5465 | if (e->X_op == O_index && e->X_op_symbol |
| 5466 | && (S_GET_VALUE (e->X_op_symbol) - IND_CPUID |
| 5467 | == opnd - IA64_OPND_CPUID_R3)) |
| 5468 | return OPERAND_MATCH; |
| 5469 | break; |
| 5470 | |
| 5471 | case IA64_OPND_MR3: |
| 5472 | if (e->X_op == O_index && !e->X_op_symbol) |
| 5473 | return OPERAND_MATCH; |
| 5474 | break; |
| 5475 | |
| 5476 | /* immediate operands: */ |
| 5477 | case IA64_OPND_CNT2a: |
| 5478 | case IA64_OPND_LEN4: |
| 5479 | case IA64_OPND_LEN6: |
| 5480 | bits = operand_width (idesc->operands[res_index]); |
| 5481 | if (e->X_op == O_constant) |
| 5482 | { |
| 5483 | if ((bfd_vma) (e->X_add_number - 1) < ((bfd_vma) 1 << bits)) |
| 5484 | return OPERAND_MATCH; |
| 5485 | else |
| 5486 | return OPERAND_OUT_OF_RANGE; |
| 5487 | } |
| 5488 | break; |
| 5489 | |
| 5490 | case IA64_OPND_CNT2b: |
| 5491 | if (e->X_op == O_constant) |
| 5492 | { |
| 5493 | if ((bfd_vma) (e->X_add_number - 1) < 3) |
| 5494 | return OPERAND_MATCH; |
| 5495 | else |
| 5496 | return OPERAND_OUT_OF_RANGE; |
| 5497 | } |
| 5498 | break; |
| 5499 | |
| 5500 | case IA64_OPND_CNT2c: |
| 5501 | val = e->X_add_number; |
| 5502 | if (e->X_op == O_constant) |
| 5503 | { |
| 5504 | if ((val == 0 || val == 7 || val == 15 || val == 16)) |
| 5505 | return OPERAND_MATCH; |
| 5506 | else |
| 5507 | return OPERAND_OUT_OF_RANGE; |
| 5508 | } |
| 5509 | break; |
| 5510 | |
| 5511 | case IA64_OPND_SOR: |
| 5512 | /* SOR must be an integer multiple of 8 */ |
| 5513 | if (e->X_op == O_constant && e->X_add_number & 0x7) |
| 5514 | return OPERAND_OUT_OF_RANGE; |
| 5515 | case IA64_OPND_SOF: |
| 5516 | case IA64_OPND_SOL: |
| 5517 | if (e->X_op == O_constant) |
| 5518 | { |
| 5519 | if ((bfd_vma) e->X_add_number <= 96) |
| 5520 | return OPERAND_MATCH; |
| 5521 | else |
| 5522 | return OPERAND_OUT_OF_RANGE; |
| 5523 | } |
| 5524 | break; |
| 5525 | |
| 5526 | case IA64_OPND_IMMU62: |
| 5527 | if (e->X_op == O_constant) |
| 5528 | { |
| 5529 | if ((bfd_vma) e->X_add_number < ((bfd_vma) 1 << 62)) |
| 5530 | return OPERAND_MATCH; |
| 5531 | else |
| 5532 | return OPERAND_OUT_OF_RANGE; |
| 5533 | } |
| 5534 | else |
| 5535 | { |
| 5536 | /* FIXME -- need 62-bit relocation type */ |
| 5537 | as_bad (_("62-bit relocation not yet implemented")); |
| 5538 | } |
| 5539 | break; |
| 5540 | |
| 5541 | case IA64_OPND_IMMU64: |
| 5542 | if (e->X_op == O_symbol || e->X_op == O_pseudo_fixup |
| 5543 | || e->X_op == O_subtract) |
| 5544 | { |
| 5545 | fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups; |
| 5546 | fix->code = BFD_RELOC_IA64_IMM64; |
| 5547 | if (e->X_op != O_subtract) |
| 5548 | { |
| 5549 | fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code); |
| 5550 | if (e->X_op == O_pseudo_fixup) |
| 5551 | e->X_op = O_symbol; |
| 5552 | } |
| 5553 | |
| 5554 | fix->opnd = idesc->operands[res_index]; |
| 5555 | fix->expr = *e; |
| 5556 | fix->is_pcrel = 0; |
| 5557 | ++CURR_SLOT.num_fixups; |
| 5558 | return OPERAND_MATCH; |
| 5559 | } |
| 5560 | else if (e->X_op == O_constant) |
| 5561 | return OPERAND_MATCH; |
| 5562 | break; |
| 5563 | |
| 5564 | case IA64_OPND_IMMU5b: |
| 5565 | if (e->X_op == O_constant) |
| 5566 | { |
| 5567 | val = e->X_add_number; |
| 5568 | if (val >= 32 && val <= 63) |
| 5569 | return OPERAND_MATCH; |
| 5570 | else |
| 5571 | return OPERAND_OUT_OF_RANGE; |
| 5572 | } |
| 5573 | break; |
| 5574 | |
| 5575 | case IA64_OPND_CCNT5: |
| 5576 | case IA64_OPND_CNT5: |
| 5577 | case IA64_OPND_CNT6: |
| 5578 | case IA64_OPND_CPOS6a: |
| 5579 | case IA64_OPND_CPOS6b: |
| 5580 | case IA64_OPND_CPOS6c: |
| 5581 | case IA64_OPND_IMMU2: |
| 5582 | case IA64_OPND_IMMU7a: |
| 5583 | case IA64_OPND_IMMU7b: |
| 5584 | case IA64_OPND_IMMU21: |
| 5585 | case IA64_OPND_IMMU24: |
| 5586 | case IA64_OPND_MBTYPE4: |
| 5587 | case IA64_OPND_MHTYPE8: |
| 5588 | case IA64_OPND_POS6: |
| 5589 | bits = operand_width (idesc->operands[res_index]); |
| 5590 | if (e->X_op == O_constant) |
| 5591 | { |
| 5592 | if ((bfd_vma) e->X_add_number < ((bfd_vma) 1 << bits)) |
| 5593 | return OPERAND_MATCH; |
| 5594 | else |
| 5595 | return OPERAND_OUT_OF_RANGE; |
| 5596 | } |
| 5597 | break; |
| 5598 | |
| 5599 | case IA64_OPND_IMMU9: |
| 5600 | bits = operand_width (idesc->operands[res_index]); |
| 5601 | if (e->X_op == O_constant) |
| 5602 | { |
| 5603 | if ((bfd_vma) e->X_add_number < ((bfd_vma) 1 << bits)) |
| 5604 | { |
| 5605 | int lobits = e->X_add_number & 0x3; |
| 5606 | if (((bfd_vma) e->X_add_number & 0x3C) != 0 && lobits == 0) |
| 5607 | e->X_add_number |= (bfd_vma) 0x3; |
| 5608 | return OPERAND_MATCH; |
| 5609 | } |
| 5610 | else |
| 5611 | return OPERAND_OUT_OF_RANGE; |
| 5612 | } |
| 5613 | break; |
| 5614 | |
| 5615 | case IA64_OPND_IMM44: |
| 5616 | /* least 16 bits must be zero */ |
| 5617 | if ((e->X_add_number & 0xffff) != 0) |
| 5618 | /* XXX technically, this is wrong: we should not be issuing warning |
| 5619 | messages until we're sure this instruction pattern is going to |
| 5620 | be used! */ |
| 5621 | as_warn (_("lower 16 bits of mask ignored")); |
| 5622 | |
| 5623 | if (e->X_op == O_constant) |
| 5624 | { |
| 5625 | if (((e->X_add_number >= 0 |
| 5626 | && (bfd_vma) e->X_add_number < ((bfd_vma) 1 << 44)) |
| 5627 | || (e->X_add_number < 0 |
| 5628 | && (bfd_vma) -e->X_add_number <= ((bfd_vma) 1 << 44)))) |
| 5629 | { |
| 5630 | /* sign-extend */ |
| 5631 | if (e->X_add_number >= 0 |
| 5632 | && (e->X_add_number & ((bfd_vma) 1 << 43)) != 0) |
| 5633 | { |
| 5634 | e->X_add_number |= ~(((bfd_vma) 1 << 44) - 1); |
| 5635 | } |
| 5636 | return OPERAND_MATCH; |
| 5637 | } |
| 5638 | else |
| 5639 | return OPERAND_OUT_OF_RANGE; |
| 5640 | } |
| 5641 | break; |
| 5642 | |
| 5643 | case IA64_OPND_IMM17: |
| 5644 | /* bit 0 is a don't care (pr0 is hardwired to 1) */ |
| 5645 | if (e->X_op == O_constant) |
| 5646 | { |
| 5647 | if (((e->X_add_number >= 0 |
| 5648 | && (bfd_vma) e->X_add_number < ((bfd_vma) 1 << 17)) |
| 5649 | || (e->X_add_number < 0 |
| 5650 | && (bfd_vma) -e->X_add_number <= ((bfd_vma) 1 << 17)))) |
| 5651 | { |
| 5652 | /* sign-extend */ |
| 5653 | if (e->X_add_number >= 0 |
| 5654 | && (e->X_add_number & ((bfd_vma) 1 << 16)) != 0) |
| 5655 | { |
| 5656 | e->X_add_number |= ~(((bfd_vma) 1 << 17) - 1); |
| 5657 | } |
| 5658 | return OPERAND_MATCH; |
| 5659 | } |
| 5660 | else |
| 5661 | return OPERAND_OUT_OF_RANGE; |
| 5662 | } |
| 5663 | break; |
| 5664 | |
| 5665 | case IA64_OPND_IMM14: |
| 5666 | case IA64_OPND_IMM22: |
| 5667 | relocatable = 1; |
| 5668 | case IA64_OPND_IMM1: |
| 5669 | case IA64_OPND_IMM8: |
| 5670 | case IA64_OPND_IMM8U4: |
| 5671 | case IA64_OPND_IMM8M1: |
| 5672 | case IA64_OPND_IMM8M1U4: |
| 5673 | case IA64_OPND_IMM8M1U8: |
| 5674 | case IA64_OPND_IMM9a: |
| 5675 | case IA64_OPND_IMM9b: |
| 5676 | bits = operand_width (idesc->operands[res_index]); |
| 5677 | if (relocatable && (e->X_op == O_symbol |
| 5678 | || e->X_op == O_subtract |
| 5679 | || e->X_op == O_pseudo_fixup)) |
| 5680 | { |
| 5681 | fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups; |
| 5682 | |
| 5683 | if (idesc->operands[res_index] == IA64_OPND_IMM14) |
| 5684 | fix->code = BFD_RELOC_IA64_IMM14; |
| 5685 | else |
| 5686 | fix->code = BFD_RELOC_IA64_IMM22; |
| 5687 | |
| 5688 | if (e->X_op != O_subtract) |
| 5689 | { |
| 5690 | fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code); |
| 5691 | if (e->X_op == O_pseudo_fixup) |
| 5692 | e->X_op = O_symbol; |
| 5693 | } |
| 5694 | |
| 5695 | fix->opnd = idesc->operands[res_index]; |
| 5696 | fix->expr = *e; |
| 5697 | fix->is_pcrel = 0; |
| 5698 | ++CURR_SLOT.num_fixups; |
| 5699 | return OPERAND_MATCH; |
| 5700 | } |
| 5701 | else if (e->X_op != O_constant |
| 5702 | && ! (e->X_op == O_big && opnd == IA64_OPND_IMM8M1U8)) |
| 5703 | return OPERAND_MISMATCH; |
| 5704 | |
| 5705 | if (opnd == IA64_OPND_IMM8M1U4) |
| 5706 | { |
| 5707 | /* Zero is not valid for unsigned compares that take an adjusted |
| 5708 | constant immediate range. */ |
| 5709 | if (e->X_add_number == 0) |
| 5710 | return OPERAND_OUT_OF_RANGE; |
| 5711 | |
| 5712 | /* Sign-extend 32-bit unsigned numbers, so that the following range |
| 5713 | checks will work. */ |
| 5714 | val = e->X_add_number; |
| 5715 | if (((val & (~(bfd_vma) 0 << 32)) == 0) |
| 5716 | && ((val & ((bfd_vma) 1 << 31)) != 0)) |
| 5717 | val = ((val << 32) >> 32); |
| 5718 | |
| 5719 | /* Check for 0x100000000. This is valid because |
| 5720 | 0x100000000-1 is the same as ((uint32_t) -1). */ |
| 5721 | if (val == ((bfd_signed_vma) 1 << 32)) |
| 5722 | return OPERAND_MATCH; |
| 5723 | |
| 5724 | val = val - 1; |
| 5725 | } |
| 5726 | else if (opnd == IA64_OPND_IMM8M1U8) |
| 5727 | { |
| 5728 | /* Zero is not valid for unsigned compares that take an adjusted |
| 5729 | constant immediate range. */ |
| 5730 | if (e->X_add_number == 0) |
| 5731 | return OPERAND_OUT_OF_RANGE; |
| 5732 | |
| 5733 | /* Check for 0x10000000000000000. */ |
| 5734 | if (e->X_op == O_big) |
| 5735 | { |
| 5736 | if (generic_bignum[0] == 0 |
| 5737 | && generic_bignum[1] == 0 |
| 5738 | && generic_bignum[2] == 0 |
| 5739 | && generic_bignum[3] == 0 |
| 5740 | && generic_bignum[4] == 1) |
| 5741 | return OPERAND_MATCH; |
| 5742 | else |
| 5743 | return OPERAND_OUT_OF_RANGE; |
| 5744 | } |
| 5745 | else |
| 5746 | val = e->X_add_number - 1; |
| 5747 | } |
| 5748 | else if (opnd == IA64_OPND_IMM8M1) |
| 5749 | val = e->X_add_number - 1; |
| 5750 | else if (opnd == IA64_OPND_IMM8U4) |
| 5751 | { |
| 5752 | /* Sign-extend 32-bit unsigned numbers, so that the following range |
| 5753 | checks will work. */ |
| 5754 | val = e->X_add_number; |
| 5755 | if (((val & (~(bfd_vma) 0 << 32)) == 0) |
| 5756 | && ((val & ((bfd_vma) 1 << 31)) != 0)) |
| 5757 | val = ((val << 32) >> 32); |
| 5758 | } |
| 5759 | else |
| 5760 | val = e->X_add_number; |
| 5761 | |
| 5762 | if ((val >= 0 && (bfd_vma) val < ((bfd_vma) 1 << (bits - 1))) |
| 5763 | || (val < 0 && (bfd_vma) -val <= ((bfd_vma) 1 << (bits - 1)))) |
| 5764 | return OPERAND_MATCH; |
| 5765 | else |
| 5766 | return OPERAND_OUT_OF_RANGE; |
| 5767 | |
| 5768 | case IA64_OPND_INC3: |
| 5769 | /* +/- 1, 4, 8, 16 */ |
| 5770 | val = e->X_add_number; |
| 5771 | if (val < 0) |
| 5772 | val = -val; |
| 5773 | if (e->X_op == O_constant) |
| 5774 | { |
| 5775 | if ((val == 1 || val == 4 || val == 8 || val == 16)) |
| 5776 | return OPERAND_MATCH; |
| 5777 | else |
| 5778 | return OPERAND_OUT_OF_RANGE; |
| 5779 | } |
| 5780 | break; |
| 5781 | |
| 5782 | case IA64_OPND_TGT25: |
| 5783 | case IA64_OPND_TGT25b: |
| 5784 | case IA64_OPND_TGT25c: |
| 5785 | case IA64_OPND_TGT64: |
| 5786 | if (e->X_op == O_symbol) |
| 5787 | { |
| 5788 | fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups; |
| 5789 | if (opnd == IA64_OPND_TGT25) |
| 5790 | fix->code = BFD_RELOC_IA64_PCREL21F; |
| 5791 | else if (opnd == IA64_OPND_TGT25b) |
| 5792 | fix->code = BFD_RELOC_IA64_PCREL21M; |
| 5793 | else if (opnd == IA64_OPND_TGT25c) |
| 5794 | fix->code = BFD_RELOC_IA64_PCREL21B; |
| 5795 | else if (opnd == IA64_OPND_TGT64) |
| 5796 | fix->code = BFD_RELOC_IA64_PCREL60B; |
| 5797 | else |
| 5798 | abort (); |
| 5799 | |
| 5800 | fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code); |
| 5801 | fix->opnd = idesc->operands[res_index]; |
| 5802 | fix->expr = *e; |
| 5803 | fix->is_pcrel = 1; |
| 5804 | ++CURR_SLOT.num_fixups; |
| 5805 | return OPERAND_MATCH; |
| 5806 | } |
| 5807 | case IA64_OPND_TAG13: |
| 5808 | case IA64_OPND_TAG13b: |
| 5809 | switch (e->X_op) |
| 5810 | { |
| 5811 | case O_constant: |
| 5812 | return OPERAND_MATCH; |
| 5813 | |
| 5814 | case O_symbol: |
| 5815 | fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups; |
| 5816 | /* There are no external relocs for TAG13/TAG13b fields, so we |
| 5817 | create a dummy reloc. This will not live past md_apply_fix. */ |
| 5818 | fix->code = BFD_RELOC_UNUSED; |
| 5819 | fix->code = ia64_gen_real_reloc_type (e->X_op_symbol, fix->code); |
| 5820 | fix->opnd = idesc->operands[res_index]; |
| 5821 | fix->expr = *e; |
| 5822 | fix->is_pcrel = 1; |
| 5823 | ++CURR_SLOT.num_fixups; |
| 5824 | return OPERAND_MATCH; |
| 5825 | |
| 5826 | default: |
| 5827 | break; |
| 5828 | } |
| 5829 | break; |
| 5830 | |
| 5831 | case IA64_OPND_LDXMOV: |
| 5832 | fix = CURR_SLOT.fixup + CURR_SLOT.num_fixups; |
| 5833 | fix->code = BFD_RELOC_IA64_LDXMOV; |
| 5834 | fix->opnd = idesc->operands[res_index]; |
| 5835 | fix->expr = *e; |
| 5836 | fix->is_pcrel = 0; |
| 5837 | ++CURR_SLOT.num_fixups; |
| 5838 | return OPERAND_MATCH; |
| 5839 | |
| 5840 | default: |
| 5841 | break; |
| 5842 | } |
| 5843 | return OPERAND_MISMATCH; |
| 5844 | } |
| 5845 | |
| 5846 | static int |
| 5847 | parse_operand (expressionS *e, int more) |
| 5848 | { |
| 5849 | int sep = '\0'; |
| 5850 | |
| 5851 | memset (e, 0, sizeof (*e)); |
| 5852 | e->X_op = O_absent; |
| 5853 | SKIP_WHITESPACE (); |
| 5854 | expression (e); |
| 5855 | sep = *input_line_pointer; |
| 5856 | if (more && (sep == ',' || sep == more)) |
| 5857 | ++input_line_pointer; |
| 5858 | return sep; |
| 5859 | } |
| 5860 | |
| 5861 | static int |
| 5862 | parse_operand_and_eval (expressionS *e, int more) |
| 5863 | { |
| 5864 | int sep = parse_operand (e, more); |
| 5865 | resolve_expression (e); |
| 5866 | return sep; |
| 5867 | } |
| 5868 | |
| 5869 | static int |
| 5870 | parse_operand_maybe_eval (expressionS *e, int more, enum ia64_opnd op) |
| 5871 | { |
| 5872 | int sep = parse_operand (e, more); |
| 5873 | switch (op) |
| 5874 | { |
| 5875 | case IA64_OPND_IMM14: |
| 5876 | case IA64_OPND_IMM22: |
| 5877 | case IA64_OPND_IMMU64: |
| 5878 | case IA64_OPND_TGT25: |
| 5879 | case IA64_OPND_TGT25b: |
| 5880 | case IA64_OPND_TGT25c: |
| 5881 | case IA64_OPND_TGT64: |
| 5882 | case IA64_OPND_TAG13: |
| 5883 | case IA64_OPND_TAG13b: |
| 5884 | case IA64_OPND_LDXMOV: |
| 5885 | break; |
| 5886 | default: |
| 5887 | resolve_expression (e); |
| 5888 | break; |
| 5889 | } |
| 5890 | return sep; |
| 5891 | } |
| 5892 | |
| 5893 | /* Returns the next entry in the opcode table that matches the one in |
| 5894 | IDESC, and frees the entry in IDESC. If no matching entry is |
| 5895 | found, NULL is returned instead. */ |
| 5896 | |
| 5897 | static struct ia64_opcode * |
| 5898 | get_next_opcode (struct ia64_opcode *idesc) |
| 5899 | { |
| 5900 | struct ia64_opcode *next = ia64_find_next_opcode (idesc); |
| 5901 | ia64_free_opcode (idesc); |
| 5902 | return next; |
| 5903 | } |
| 5904 | |
| 5905 | /* Parse the operands for the opcode and find the opcode variant that |
| 5906 | matches the specified operands, or NULL if no match is possible. */ |
| 5907 | |
| 5908 | static struct ia64_opcode * |
| 5909 | parse_operands (struct ia64_opcode *idesc) |
| 5910 | { |
| 5911 | int i = 0, highest_unmatched_operand, num_operands = 0, num_outputs = 0; |
| 5912 | int error_pos, out_of_range_pos, curr_out_of_range_pos, sep = 0; |
| 5913 | int reg1, reg2; |
| 5914 | char reg_class; |
| 5915 | enum ia64_opnd expected_operand = IA64_OPND_NIL; |
| 5916 | enum operand_match_result result; |
| 5917 | char mnemonic[129]; |
| 5918 | char *first_arg = 0, *end, *saved_input_pointer; |
| 5919 | unsigned int sof; |
| 5920 | |
| 5921 | gas_assert (strlen (idesc->name) <= 128); |
| 5922 | |
| 5923 | strcpy (mnemonic, idesc->name); |
| 5924 | if (idesc->operands[2] == IA64_OPND_SOF |
| 5925 | || idesc->operands[1] == IA64_OPND_SOF) |
| 5926 | { |
| 5927 | /* To make the common idiom "alloc loc?=ar.pfs,0,1,0,0" work, we |
| 5928 | can't parse the first operand until we have parsed the |
| 5929 | remaining operands of the "alloc" instruction. */ |
| 5930 | SKIP_WHITESPACE (); |
| 5931 | first_arg = input_line_pointer; |
| 5932 | end = strchr (input_line_pointer, '='); |
| 5933 | if (!end) |
| 5934 | { |
| 5935 | as_bad (_("Expected separator `='")); |
| 5936 | return 0; |
| 5937 | } |
| 5938 | input_line_pointer = end + 1; |
| 5939 | ++i; |
| 5940 | ++num_outputs; |
| 5941 | } |
| 5942 | |
| 5943 | for (; ; ++i) |
| 5944 | { |
| 5945 | if (i < NELEMS (CURR_SLOT.opnd)) |
| 5946 | { |
| 5947 | sep = parse_operand_maybe_eval (CURR_SLOT.opnd + i, '=', |
| 5948 | idesc->operands[i]); |
| 5949 | if (CURR_SLOT.opnd[i].X_op == O_absent) |
| 5950 | break; |
| 5951 | } |
| 5952 | else |
| 5953 | { |
| 5954 | expressionS dummy; |
| 5955 | |
| 5956 | sep = parse_operand (&dummy, '='); |
| 5957 | if (dummy.X_op == O_absent) |
| 5958 | break; |
| 5959 | } |
| 5960 | |
| 5961 | ++num_operands; |
| 5962 | |
| 5963 | if (sep != '=' && sep != ',') |
| 5964 | break; |
| 5965 | |
| 5966 | if (sep == '=') |
| 5967 | { |
| 5968 | if (num_outputs > 0) |
| 5969 | as_bad (_("Duplicate equal sign (=) in instruction")); |
| 5970 | else |
| 5971 | num_outputs = i + 1; |
| 5972 | } |
| 5973 | } |
| 5974 | if (sep != '\0') |
| 5975 | { |
| 5976 | as_bad (_("Illegal operand separator `%c'"), sep); |
| 5977 | return 0; |
| 5978 | } |
| 5979 | |
| 5980 | if (idesc->operands[2] == IA64_OPND_SOF |
| 5981 | || idesc->operands[1] == IA64_OPND_SOF) |
| 5982 | { |
| 5983 | /* Map alloc r1=ar.pfs,i,l,o,r to alloc r1=ar.pfs,(i+l+o),(i+l),r. |
| 5984 | Note, however, that due to that mapping operand numbers in error |
| 5985 | messages for any of the constant operands will not be correct. */ |
| 5986 | know (strcmp (idesc->name, "alloc") == 0); |
| 5987 | /* The first operand hasn't been parsed/initialized, yet (but |
| 5988 | num_operands intentionally doesn't account for that). */ |
| 5989 | i = num_operands > 4 ? 2 : 1; |
| 5990 | #define FORCE_CONST(n) (CURR_SLOT.opnd[n].X_op == O_constant \ |
| 5991 | ? CURR_SLOT.opnd[n].X_add_number \ |
| 5992 | : 0) |
| 5993 | sof = set_regstack (FORCE_CONST(i), |
| 5994 | FORCE_CONST(i + 1), |
| 5995 | FORCE_CONST(i + 2), |
| 5996 | FORCE_CONST(i + 3)); |
| 5997 | #undef FORCE_CONST |
| 5998 | |
| 5999 | /* now we can parse the first arg: */ |
| 6000 | saved_input_pointer = input_line_pointer; |
| 6001 | input_line_pointer = first_arg; |
| 6002 | sep = parse_operand_maybe_eval (CURR_SLOT.opnd + 0, '=', |
| 6003 | idesc->operands[0]); |
| 6004 | if (sep != '=') |
| 6005 | --num_outputs; /* force error */ |
| 6006 | input_line_pointer = saved_input_pointer; |
| 6007 | |
| 6008 | CURR_SLOT.opnd[i].X_add_number = sof; |
| 6009 | if (CURR_SLOT.opnd[i + 1].X_op == O_constant |
| 6010 | && CURR_SLOT.opnd[i + 2].X_op == O_constant) |
| 6011 | CURR_SLOT.opnd[i + 1].X_add_number |
| 6012 | = sof - CURR_SLOT.opnd[i + 2].X_add_number; |
| 6013 | else |
| 6014 | CURR_SLOT.opnd[i + 1].X_op = O_illegal; |
| 6015 | CURR_SLOT.opnd[i + 2] = CURR_SLOT.opnd[i + 3]; |
| 6016 | } |
| 6017 | |
| 6018 | highest_unmatched_operand = -4; |
| 6019 | curr_out_of_range_pos = -1; |
| 6020 | error_pos = 0; |
| 6021 | for (; idesc; idesc = get_next_opcode (idesc)) |
| 6022 | { |
| 6023 | if (num_outputs != idesc->num_outputs) |
| 6024 | continue; /* mismatch in # of outputs */ |
| 6025 | if (highest_unmatched_operand < 0) |
| 6026 | highest_unmatched_operand |= 1; |
| 6027 | if (num_operands > NELEMS (idesc->operands) |
| 6028 | || (num_operands < NELEMS (idesc->operands) |
| 6029 | && idesc->operands[num_operands]) |
| 6030 | || (num_operands > 0 && !idesc->operands[num_operands - 1])) |
| 6031 | continue; /* mismatch in number of arguments */ |
| 6032 | if (highest_unmatched_operand < 0) |
| 6033 | highest_unmatched_operand |= 2; |
| 6034 | |
| 6035 | CURR_SLOT.num_fixups = 0; |
| 6036 | |
| 6037 | /* Try to match all operands. If we see an out-of-range operand, |
| 6038 | then continue trying to match the rest of the operands, since if |
| 6039 | the rest match, then this idesc will give the best error message. */ |
| 6040 | |
| 6041 | out_of_range_pos = -1; |
| 6042 | for (i = 0; i < num_operands && idesc->operands[i]; ++i) |
| 6043 | { |
| 6044 | result = operand_match (idesc, i, CURR_SLOT.opnd + i); |
| 6045 | if (result != OPERAND_MATCH) |
| 6046 | { |
| 6047 | if (result != OPERAND_OUT_OF_RANGE) |
| 6048 | break; |
| 6049 | if (out_of_range_pos < 0) |
| 6050 | /* remember position of the first out-of-range operand: */ |
| 6051 | out_of_range_pos = i; |
| 6052 | } |
| 6053 | } |
| 6054 | |
| 6055 | /* If we did not match all operands, or if at least one operand was |
| 6056 | out-of-range, then this idesc does not match. Keep track of which |
| 6057 | idesc matched the most operands before failing. If we have two |
| 6058 | idescs that failed at the same position, and one had an out-of-range |
| 6059 | operand, then prefer the out-of-range operand. Thus if we have |
| 6060 | "add r0=0x1000000,r1" we get an error saying the constant is out |
| 6061 | of range instead of an error saying that the constant should have been |
| 6062 | a register. */ |
| 6063 | |
| 6064 | if (i != num_operands || out_of_range_pos >= 0) |
| 6065 | { |
| 6066 | if (i > highest_unmatched_operand |
| 6067 | || (i == highest_unmatched_operand |
| 6068 | && out_of_range_pos > curr_out_of_range_pos)) |
| 6069 | { |
| 6070 | highest_unmatched_operand = i; |
| 6071 | if (out_of_range_pos >= 0) |
| 6072 | { |
| 6073 | expected_operand = idesc->operands[out_of_range_pos]; |
| 6074 | error_pos = out_of_range_pos; |
| 6075 | } |
| 6076 | else |
| 6077 | { |
| 6078 | expected_operand = idesc->operands[i]; |
| 6079 | error_pos = i; |
| 6080 | } |
| 6081 | curr_out_of_range_pos = out_of_range_pos; |
| 6082 | } |
| 6083 | continue; |
| 6084 | } |
| 6085 | |
| 6086 | break; |
| 6087 | } |
| 6088 | if (!idesc) |
| 6089 | { |
| 6090 | if (expected_operand) |
| 6091 | as_bad (_("Operand %u of `%s' should be %s"), |
| 6092 | error_pos + 1, mnemonic, |
| 6093 | elf64_ia64_operands[expected_operand].desc); |
| 6094 | else if (highest_unmatched_operand < 0 && !(highest_unmatched_operand & 1)) |
| 6095 | as_bad (_("Wrong number of output operands")); |
| 6096 | else if (highest_unmatched_operand < 0 && !(highest_unmatched_operand & 2)) |
| 6097 | as_bad (_("Wrong number of input operands")); |
| 6098 | else |
| 6099 | as_bad (_("Operand mismatch")); |
| 6100 | return 0; |
| 6101 | } |
| 6102 | |
| 6103 | /* Check that the instruction doesn't use |
| 6104 | - r0, f0, or f1 as output operands |
| 6105 | - the same predicate twice as output operands |
| 6106 | - r0 as address of a base update load or store |
| 6107 | - the same GR as output and address of a base update load |
| 6108 | - two even- or two odd-numbered FRs as output operands of a floating |
| 6109 | point parallel load. |
| 6110 | At most two (conflicting) output (or output-like) operands can exist, |
| 6111 | (floating point parallel loads have three outputs, but the base register, |
| 6112 | if updated, cannot conflict with the actual outputs). */ |
| 6113 | reg2 = reg1 = -1; |
| 6114 | for (i = 0; i < num_operands; ++i) |
| 6115 | { |
| 6116 | int regno = 0; |
| 6117 | |
| 6118 | reg_class = 0; |
| 6119 | switch (idesc->operands[i]) |
| 6120 | { |
| 6121 | case IA64_OPND_R1: |
| 6122 | case IA64_OPND_R2: |
| 6123 | case IA64_OPND_R3: |
| 6124 | if (i < num_outputs) |
| 6125 | { |
| 6126 | if (CURR_SLOT.opnd[i].X_add_number == REG_GR) |
| 6127 | reg_class = 'r'; |
| 6128 | else if (reg1 < 0) |
| 6129 | reg1 = CURR_SLOT.opnd[i].X_add_number; |
| 6130 | else if (reg2 < 0) |
| 6131 | reg2 = CURR_SLOT.opnd[i].X_add_number; |
| 6132 | } |
| 6133 | break; |
| 6134 | case IA64_OPND_P1: |
| 6135 | case IA64_OPND_P2: |
| 6136 | if (i < num_outputs) |
| 6137 | { |
| 6138 | if (reg1 < 0) |
| 6139 | reg1 = CURR_SLOT.opnd[i].X_add_number; |
| 6140 | else if (reg2 < 0) |
| 6141 | reg2 = CURR_SLOT.opnd[i].X_add_number; |
| 6142 | } |
| 6143 | break; |
| 6144 | case IA64_OPND_F1: |
| 6145 | case IA64_OPND_F2: |
| 6146 | case IA64_OPND_F3: |
| 6147 | case IA64_OPND_F4: |
| 6148 | if (i < num_outputs) |
| 6149 | { |
| 6150 | if (CURR_SLOT.opnd[i].X_add_number >= REG_FR |
| 6151 | && CURR_SLOT.opnd[i].X_add_number <= REG_FR + 1) |
| 6152 | { |
| 6153 | reg_class = 'f'; |
| 6154 | regno = CURR_SLOT.opnd[i].X_add_number - REG_FR; |
| 6155 | } |
| 6156 | else if (reg1 < 0) |
| 6157 | reg1 = CURR_SLOT.opnd[i].X_add_number; |
| 6158 | else if (reg2 < 0) |
| 6159 | reg2 = CURR_SLOT.opnd[i].X_add_number; |
| 6160 | } |
| 6161 | break; |
| 6162 | case IA64_OPND_MR3: |
| 6163 | if (idesc->flags & IA64_OPCODE_POSTINC) |
| 6164 | { |
| 6165 | if (CURR_SLOT.opnd[i].X_add_number == REG_GR) |
| 6166 | reg_class = 'm'; |
| 6167 | else if (reg1 < 0) |
| 6168 | reg1 = CURR_SLOT.opnd[i].X_add_number; |
| 6169 | else if (reg2 < 0) |
| 6170 | reg2 = CURR_SLOT.opnd[i].X_add_number; |
| 6171 | } |
| 6172 | break; |
| 6173 | default: |
| 6174 | break; |
| 6175 | } |
| 6176 | switch (reg_class) |
| 6177 | { |
| 6178 | case 0: |
| 6179 | break; |
| 6180 | default: |
| 6181 | as_warn (_("Invalid use of `%c%d' as output operand"), reg_class, regno); |
| 6182 | break; |
| 6183 | case 'm': |
| 6184 | as_warn (_("Invalid use of `r%d' as base update address operand"), regno); |
| 6185 | break; |
| 6186 | } |
| 6187 | } |
| 6188 | if (reg1 == reg2) |
| 6189 | { |
| 6190 | if (reg1 >= REG_GR && reg1 <= REG_GR + 127) |
| 6191 | { |
| 6192 | reg1 -= REG_GR; |
| 6193 | reg_class = 'r'; |
| 6194 | } |
| 6195 | else if (reg1 >= REG_P && reg1 <= REG_P + 63) |
| 6196 | { |
| 6197 | reg1 -= REG_P; |
| 6198 | reg_class = 'p'; |
| 6199 | } |
| 6200 | else if (reg1 >= REG_FR && reg1 <= REG_FR + 127) |
| 6201 | { |
| 6202 | reg1 -= REG_FR; |
| 6203 | reg_class = 'f'; |
| 6204 | } |
| 6205 | else |
| 6206 | reg_class = 0; |
| 6207 | if (reg_class) |
| 6208 | as_warn (_("Invalid duplicate use of `%c%d'"), reg_class, reg1); |
| 6209 | } |
| 6210 | else if (((reg1 >= REG_FR && reg1 <= REG_FR + 31 |
| 6211 | && reg2 >= REG_FR && reg2 <= REG_FR + 31) |
| 6212 | || (reg1 >= REG_FR + 32 && reg1 <= REG_FR + 127 |
| 6213 | && reg2 >= REG_FR + 32 && reg2 <= REG_FR + 127)) |
| 6214 | && ! ((reg1 ^ reg2) & 1)) |
| 6215 | as_warn (_("Invalid simultaneous use of `f%d' and `f%d'"), |
| 6216 | reg1 - REG_FR, reg2 - REG_FR); |
| 6217 | else if ((reg1 >= REG_FR && reg1 <= REG_FR + 31 |
| 6218 | && reg2 >= REG_FR + 32 && reg2 <= REG_FR + 127) |
| 6219 | || (reg1 >= REG_FR + 32 && reg1 <= REG_FR + 127 |
| 6220 | && reg2 >= REG_FR && reg2 <= REG_FR + 31)) |
| 6221 | as_warn (_("Dangerous simultaneous use of `f%d' and `f%d'"), |
| 6222 | reg1 - REG_FR, reg2 - REG_FR); |
| 6223 | return idesc; |
| 6224 | } |
| 6225 | |
| 6226 | static void |
| 6227 | build_insn (struct slot *slot, bfd_vma *insnp) |
| 6228 | { |
| 6229 | const struct ia64_operand *odesc, *o2desc; |
| 6230 | struct ia64_opcode *idesc = slot->idesc; |
| 6231 | bfd_vma insn; |
| 6232 | bfd_signed_vma val; |
| 6233 | const char *err; |
| 6234 | int i; |
| 6235 | |
| 6236 | insn = idesc->opcode | slot->qp_regno; |
| 6237 | |
| 6238 | for (i = 0; i < NELEMS (idesc->operands) && idesc->operands[i]; ++i) |
| 6239 | { |
| 6240 | if (slot->opnd[i].X_op == O_register |
| 6241 | || slot->opnd[i].X_op == O_constant |
| 6242 | || slot->opnd[i].X_op == O_index) |
| 6243 | val = slot->opnd[i].X_add_number; |
| 6244 | else if (slot->opnd[i].X_op == O_big) |
| 6245 | { |
| 6246 | /* This must be the value 0x10000000000000000. */ |
| 6247 | gas_assert (idesc->operands[i] == IA64_OPND_IMM8M1U8); |
| 6248 | val = 0; |
| 6249 | } |
| 6250 | else |
| 6251 | val = 0; |
| 6252 | |
| 6253 | switch (idesc->operands[i]) |
| 6254 | { |
| 6255 | case IA64_OPND_IMMU64: |
| 6256 | *insnp++ = (val >> 22) & 0x1ffffffffffLL; |
| 6257 | insn |= (((val & 0x7f) << 13) | (((val >> 7) & 0x1ff) << 27) |
| 6258 | | (((val >> 16) & 0x1f) << 22) | (((val >> 21) & 0x1) << 21) |
| 6259 | | (((val >> 63) & 0x1) << 36)); |
| 6260 | continue; |
| 6261 | |
| 6262 | case IA64_OPND_IMMU62: |
| 6263 | val &= 0x3fffffffffffffffULL; |
| 6264 | if (val != slot->opnd[i].X_add_number) |
| 6265 | as_warn (_("Value truncated to 62 bits")); |
| 6266 | *insnp++ = (val >> 21) & 0x1ffffffffffLL; |
| 6267 | insn |= (((val & 0xfffff) << 6) | (((val >> 20) & 0x1) << 36)); |
| 6268 | continue; |
| 6269 | |
| 6270 | case IA64_OPND_TGT64: |
| 6271 | val >>= 4; |
| 6272 | *insnp++ = ((val >> 20) & 0x7fffffffffLL) << 2; |
| 6273 | insn |= ((((val >> 59) & 0x1) << 36) |
| 6274 | | (((val >> 0) & 0xfffff) << 13)); |
| 6275 | continue; |
| 6276 | |
| 6277 | case IA64_OPND_AR3: |
| 6278 | val -= REG_AR; |
| 6279 | break; |
| 6280 | |
| 6281 | case IA64_OPND_B1: |
| 6282 | case IA64_OPND_B2: |
| 6283 | val -= REG_BR; |
| 6284 | break; |
| 6285 | |
| 6286 | case IA64_OPND_CR3: |
| 6287 | val -= REG_CR; |
| 6288 | break; |
| 6289 | |
| 6290 | case IA64_OPND_F1: |
| 6291 | case IA64_OPND_F2: |
| 6292 | case IA64_OPND_F3: |
| 6293 | case IA64_OPND_F4: |
| 6294 | val -= REG_FR; |
| 6295 | break; |
| 6296 | |
| 6297 | case IA64_OPND_P1: |
| 6298 | case IA64_OPND_P2: |
| 6299 | val -= REG_P; |
| 6300 | break; |
| 6301 | |
| 6302 | case IA64_OPND_R1: |
| 6303 | case IA64_OPND_R2: |
| 6304 | case IA64_OPND_R3: |
| 6305 | case IA64_OPND_R3_2: |
| 6306 | case IA64_OPND_CPUID_R3: |
| 6307 | case IA64_OPND_DBR_R3: |
| 6308 | case IA64_OPND_DTR_R3: |
| 6309 | case IA64_OPND_ITR_R3: |
| 6310 | case IA64_OPND_IBR_R3: |
| 6311 | case IA64_OPND_MR3: |
| 6312 | case IA64_OPND_MSR_R3: |
| 6313 | case IA64_OPND_PKR_R3: |
| 6314 | case IA64_OPND_PMC_R3: |
| 6315 | case IA64_OPND_PMD_R3: |
| 6316 | case IA64_OPND_RR_R3: |
| 6317 | val -= REG_GR; |
| 6318 | break; |
| 6319 | |
| 6320 | default: |
| 6321 | break; |
| 6322 | } |
| 6323 | |
| 6324 | odesc = elf64_ia64_operands + idesc->operands[i]; |
| 6325 | err = (*odesc->insert) (odesc, val, &insn); |
| 6326 | if (err) |
| 6327 | as_bad_where (slot->src_file, slot->src_line, |
| 6328 | _("Bad operand value: %s"), err); |
| 6329 | if (idesc->flags & IA64_OPCODE_PSEUDO) |
| 6330 | { |
| 6331 | if ((idesc->flags & IA64_OPCODE_F2_EQ_F3) |
| 6332 | && odesc == elf64_ia64_operands + IA64_OPND_F3) |
| 6333 | { |
| 6334 | o2desc = elf64_ia64_operands + IA64_OPND_F2; |
| 6335 | (*o2desc->insert) (o2desc, val, &insn); |
| 6336 | } |
| 6337 | if ((idesc->flags & IA64_OPCODE_LEN_EQ_64MCNT) |
| 6338 | && (odesc == elf64_ia64_operands + IA64_OPND_CPOS6a |
| 6339 | || odesc == elf64_ia64_operands + IA64_OPND_POS6)) |
| 6340 | { |
| 6341 | o2desc = elf64_ia64_operands + IA64_OPND_LEN6; |
| 6342 | (*o2desc->insert) (o2desc, 64 - val, &insn); |
| 6343 | } |
| 6344 | } |
| 6345 | } |
| 6346 | *insnp = insn; |
| 6347 | } |
| 6348 | |
| 6349 | static void |
| 6350 | emit_one_bundle (void) |
| 6351 | { |
| 6352 | int manual_bundling_off = 0, manual_bundling = 0; |
| 6353 | enum ia64_unit required_unit, insn_unit = 0; |
| 6354 | enum ia64_insn_type type[3], insn_type; |
| 6355 | unsigned int template_val, orig_template; |
| 6356 | bfd_vma insn[3] = { -1, -1, -1 }; |
| 6357 | struct ia64_opcode *idesc; |
| 6358 | int end_of_insn_group = 0, user_template = -1; |
| 6359 | int n, i, j, first, curr, last_slot; |
| 6360 | bfd_vma t0 = 0, t1 = 0; |
| 6361 | struct label_fix *lfix; |
| 6362 | bfd_boolean mark_label; |
| 6363 | struct insn_fix *ifix; |
| 6364 | char mnemonic[16]; |
| 6365 | fixS *fix; |
| 6366 | char *f; |
| 6367 | int addr_mod; |
| 6368 | |
| 6369 | first = (md.curr_slot + NUM_SLOTS - md.num_slots_in_use) % NUM_SLOTS; |
| 6370 | know (first >= 0 && first < NUM_SLOTS); |
| 6371 | n = MIN (3, md.num_slots_in_use); |
| 6372 | |
| 6373 | /* Determine template: user user_template if specified, best match |
| 6374 | otherwise: */ |
| 6375 | |
| 6376 | if (md.slot[first].user_template >= 0) |
| 6377 | user_template = template_val = md.slot[first].user_template; |
| 6378 | else |
| 6379 | { |
| 6380 | /* Auto select appropriate template. */ |
| 6381 | memset (type, 0, sizeof (type)); |
| 6382 | curr = first; |
| 6383 | for (i = 0; i < n; ++i) |
| 6384 | { |
| 6385 | if (md.slot[curr].label_fixups && i != 0) |
| 6386 | break; |
| 6387 | type[i] = md.slot[curr].idesc->type; |
| 6388 | curr = (curr + 1) % NUM_SLOTS; |
| 6389 | } |
| 6390 | template_val = best_template[type[0]][type[1]][type[2]]; |
| 6391 | } |
| 6392 | |
| 6393 | /* initialize instructions with appropriate nops: */ |
| 6394 | for (i = 0; i < 3; ++i) |
| 6395 | insn[i] = nop[ia64_templ_desc[template_val].exec_unit[i]]; |
| 6396 | |
| 6397 | f = frag_more (16); |
| 6398 | |
| 6399 | /* Check to see if this bundle is at an offset that is a multiple of 16-bytes |
| 6400 | from the start of the frag. */ |
| 6401 | addr_mod = frag_now_fix () & 15; |
| 6402 | if (frag_now->has_code && frag_now->insn_addr != addr_mod) |
| 6403 | as_bad (_("instruction address is not a multiple of 16")); |
| 6404 | frag_now->insn_addr = addr_mod; |
| 6405 | frag_now->has_code = 1; |
| 6406 | |
| 6407 | /* now fill in slots with as many insns as possible: */ |
| 6408 | curr = first; |
| 6409 | idesc = md.slot[curr].idesc; |
| 6410 | end_of_insn_group = 0; |
| 6411 | last_slot = -1; |
| 6412 | for (i = 0; i < 3 && md.num_slots_in_use > 0; ++i) |
| 6413 | { |
| 6414 | /* If we have unwind records, we may need to update some now. */ |
| 6415 | unw_rec_list *ptr = md.slot[curr].unwind_record; |
| 6416 | unw_rec_list *end_ptr = NULL; |
| 6417 | |
| 6418 | if (ptr) |
| 6419 | { |
| 6420 | /* Find the last prologue/body record in the list for the current |
| 6421 | insn, and set the slot number for all records up to that point. |
| 6422 | This needs to be done now, because prologue/body records refer to |
| 6423 | the current point, not the point after the instruction has been |
| 6424 | issued. This matters because there may have been nops emitted |
| 6425 | meanwhile. Any non-prologue non-body record followed by a |
| 6426 | prologue/body record must also refer to the current point. */ |
| 6427 | unw_rec_list *last_ptr; |
| 6428 | |
| 6429 | for (j = 1; end_ptr == NULL && j < md.num_slots_in_use; ++j) |
| 6430 | end_ptr = md.slot[(curr + j) % NUM_SLOTS].unwind_record; |
| 6431 | for (last_ptr = NULL; ptr != end_ptr; ptr = ptr->next) |
| 6432 | if (ptr->r.type == prologue || ptr->r.type == prologue_gr |
| 6433 | || ptr->r.type == body) |
| 6434 | last_ptr = ptr; |
| 6435 | if (last_ptr) |
| 6436 | { |
| 6437 | /* Make last_ptr point one after the last prologue/body |
| 6438 | record. */ |
| 6439 | last_ptr = last_ptr->next; |
| 6440 | for (ptr = md.slot[curr].unwind_record; ptr != last_ptr; |
| 6441 | ptr = ptr->next) |
| 6442 | { |
| 6443 | ptr->slot_number = (unsigned long) f + i; |
| 6444 | ptr->slot_frag = frag_now; |
| 6445 | } |
| 6446 | /* Remove the initialized records, so that we won't accidentally |
| 6447 | update them again if we insert a nop and continue. */ |
| 6448 | md.slot[curr].unwind_record = last_ptr; |
| 6449 | } |
| 6450 | } |
| 6451 | |
| 6452 | manual_bundling_off = md.slot[curr].manual_bundling_off; |
| 6453 | if (md.slot[curr].manual_bundling_on) |
| 6454 | { |
| 6455 | if (curr == first) |
| 6456 | manual_bundling = 1; |
| 6457 | else |
| 6458 | break; /* Need to start a new bundle. */ |
| 6459 | } |
| 6460 | |
| 6461 | /* If this instruction specifies a template, then it must be the first |
| 6462 | instruction of a bundle. */ |
| 6463 | if (curr != first && md.slot[curr].user_template >= 0) |
| 6464 | break; |
| 6465 | |
| 6466 | if (idesc->flags & IA64_OPCODE_SLOT2) |
| 6467 | { |
| 6468 | if (manual_bundling && !manual_bundling_off) |
| 6469 | { |
| 6470 | as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line, |
| 6471 | _("`%s' must be last in bundle"), idesc->name); |
| 6472 | if (i < 2) |
| 6473 | manual_bundling = -1; /* Suppress meaningless post-loop errors. */ |
| 6474 | } |
| 6475 | i = 2; |
| 6476 | } |
| 6477 | if (idesc->flags & IA64_OPCODE_LAST) |
| 6478 | { |
| 6479 | int required_slot; |
| 6480 | unsigned int required_template; |
| 6481 | |
| 6482 | /* If we need a stop bit after an M slot, our only choice is |
| 6483 | template 5 (M;;MI). If we need a stop bit after a B |
| 6484 | slot, our only choice is to place it at the end of the |
| 6485 | bundle, because the only available templates are MIB, |
| 6486 | MBB, BBB, MMB, and MFB. We don't handle anything other |
| 6487 | than M and B slots because these are the only kind of |
| 6488 | instructions that can have the IA64_OPCODE_LAST bit set. */ |
| 6489 | required_template = template_val; |
| 6490 | switch (idesc->type) |
| 6491 | { |
| 6492 | case IA64_TYPE_M: |
| 6493 | required_slot = 0; |
| 6494 | required_template = 5; |
| 6495 | break; |
| 6496 | |
| 6497 | case IA64_TYPE_B: |
| 6498 | required_slot = 2; |
| 6499 | break; |
| 6500 | |
| 6501 | default: |
| 6502 | as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line, |
| 6503 | _("Internal error: don't know how to force %s to end of instruction group"), |
| 6504 | idesc->name); |
| 6505 | required_slot = i; |
| 6506 | break; |
| 6507 | } |
| 6508 | if (manual_bundling |
| 6509 | && (i > required_slot |
| 6510 | || (required_slot == 2 && !manual_bundling_off) |
| 6511 | || (user_template >= 0 |
| 6512 | /* Changing from MMI to M;MI is OK. */ |
| 6513 | && (template_val ^ required_template) > 1))) |
| 6514 | { |
| 6515 | as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line, |
| 6516 | _("`%s' must be last in instruction group"), |
| 6517 | idesc->name); |
| 6518 | if (i < 2 && required_slot == 2 && !manual_bundling_off) |
| 6519 | manual_bundling = -1; /* Suppress meaningless post-loop errors. */ |
| 6520 | } |
| 6521 | if (required_slot < i) |
| 6522 | /* Can't fit this instruction. */ |
| 6523 | break; |
| 6524 | |
| 6525 | i = required_slot; |
| 6526 | if (required_template != template_val) |
| 6527 | { |
| 6528 | /* If we switch the template, we need to reset the NOPs |
| 6529 | after slot i. The slot-types of the instructions ahead |
| 6530 | of i never change, so we don't need to worry about |
| 6531 | changing NOPs in front of this slot. */ |
| 6532 | for (j = i; j < 3; ++j) |
| 6533 | insn[j] = nop[ia64_templ_desc[required_template].exec_unit[j]]; |
| 6534 | |
| 6535 | /* We just picked a template that includes the stop bit in the |
| 6536 | middle, so we don't need another one emitted later. */ |
| 6537 | md.slot[curr].end_of_insn_group = 0; |
| 6538 | } |
| 6539 | template_val = required_template; |
| 6540 | } |
| 6541 | if (curr != first && md.slot[curr].label_fixups) |
| 6542 | { |
| 6543 | if (manual_bundling) |
| 6544 | { |
| 6545 | as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line, |
| 6546 | _("Label must be first in a bundle")); |
| 6547 | manual_bundling = -1; /* Suppress meaningless post-loop errors. */ |
| 6548 | } |
| 6549 | /* This insn must go into the first slot of a bundle. */ |
| 6550 | break; |
| 6551 | } |
| 6552 | |
| 6553 | if (end_of_insn_group && md.num_slots_in_use >= 1) |
| 6554 | { |
| 6555 | /* We need an instruction group boundary in the middle of a |
| 6556 | bundle. See if we can switch to an other template with |
| 6557 | an appropriate boundary. */ |
| 6558 | |
| 6559 | orig_template = template_val; |
| 6560 | if (i == 1 && (user_template == 4 |
| 6561 | || (user_template < 0 |
| 6562 | && (ia64_templ_desc[template_val].exec_unit[0] |
| 6563 | == IA64_UNIT_M)))) |
| 6564 | { |
| 6565 | template_val = 5; |
| 6566 | end_of_insn_group = 0; |
| 6567 | } |
| 6568 | else if (i == 2 && (user_template == 0 |
| 6569 | || (user_template < 0 |
| 6570 | && (ia64_templ_desc[template_val].exec_unit[1] |
| 6571 | == IA64_UNIT_I))) |
| 6572 | /* This test makes sure we don't switch the template if |
| 6573 | the next instruction is one that needs to be first in |
| 6574 | an instruction group. Since all those instructions are |
| 6575 | in the M group, there is no way such an instruction can |
| 6576 | fit in this bundle even if we switch the template. The |
| 6577 | reason we have to check for this is that otherwise we |
| 6578 | may end up generating "MI;;I M.." which has the deadly |
| 6579 | effect that the second M instruction is no longer the |
| 6580 | first in the group! --davidm 99/12/16 */ |
| 6581 | && (idesc->flags & IA64_OPCODE_FIRST) == 0) |
| 6582 | { |
| 6583 | template_val = 1; |
| 6584 | end_of_insn_group = 0; |
| 6585 | } |
| 6586 | else if (i == 1 |
| 6587 | && user_template == 0 |
| 6588 | && !(idesc->flags & IA64_OPCODE_FIRST)) |
| 6589 | /* Use the next slot. */ |
| 6590 | continue; |
| 6591 | else if (curr != first) |
| 6592 | /* can't fit this insn */ |
| 6593 | break; |
| 6594 | |
| 6595 | if (template_val != orig_template) |
| 6596 | /* if we switch the template, we need to reset the NOPs |
| 6597 | after slot i. The slot-types of the instructions ahead |
| 6598 | of i never change, so we don't need to worry about |
| 6599 | changing NOPs in front of this slot. */ |
| 6600 | for (j = i; j < 3; ++j) |
| 6601 | insn[j] = nop[ia64_templ_desc[template_val].exec_unit[j]]; |
| 6602 | } |
| 6603 | required_unit = ia64_templ_desc[template_val].exec_unit[i]; |
| 6604 | |
| 6605 | /* resolve dynamic opcodes such as "break", "hint", and "nop": */ |
| 6606 | if (idesc->type == IA64_TYPE_DYN) |
| 6607 | { |
| 6608 | enum ia64_opnd opnd1, opnd2; |
| 6609 | |
| 6610 | if ((strcmp (idesc->name, "nop") == 0) |
| 6611 | || (strcmp (idesc->name, "break") == 0)) |
| 6612 | insn_unit = required_unit; |
| 6613 | else if (strcmp (idesc->name, "hint") == 0) |
| 6614 | { |
| 6615 | insn_unit = required_unit; |
| 6616 | if (required_unit == IA64_UNIT_B) |
| 6617 | { |
| 6618 | switch (md.hint_b) |
| 6619 | { |
| 6620 | case hint_b_ok: |
| 6621 | break; |
| 6622 | case hint_b_warning: |
| 6623 | as_warn (_("hint in B unit may be treated as nop")); |
| 6624 | break; |
| 6625 | case hint_b_error: |
| 6626 | /* When manual bundling is off and there is no |
| 6627 | user template, we choose a different unit so |
| 6628 | that hint won't go into the current slot. We |
| 6629 | will fill the current bundle with nops and |
| 6630 | try to put hint into the next bundle. */ |
| 6631 | if (!manual_bundling && user_template < 0) |
| 6632 | insn_unit = IA64_UNIT_I; |
| 6633 | else |
| 6634 | as_bad (_("hint in B unit can't be used")); |
| 6635 | break; |
| 6636 | } |
| 6637 | } |
| 6638 | } |
| 6639 | else if (strcmp (idesc->name, "chk.s") == 0 |
| 6640 | || strcmp (idesc->name, "mov") == 0) |
| 6641 | { |
| 6642 | insn_unit = IA64_UNIT_M; |
| 6643 | if (required_unit == IA64_UNIT_I |
| 6644 | || (required_unit == IA64_UNIT_F && template_val == 6)) |
| 6645 | insn_unit = IA64_UNIT_I; |
| 6646 | } |
| 6647 | else |
| 6648 | as_fatal (_("emit_one_bundle: unexpected dynamic op")); |
| 6649 | |
| 6650 | snprintf (mnemonic, sizeof (mnemonic), "%s.%c", |
| 6651 | idesc->name, "?imbfxx"[insn_unit]); |
| 6652 | opnd1 = idesc->operands[0]; |
| 6653 | opnd2 = idesc->operands[1]; |
| 6654 | ia64_free_opcode (idesc); |
| 6655 | idesc = ia64_find_opcode (mnemonic); |
| 6656 | /* moves to/from ARs have collisions */ |
| 6657 | if (opnd1 == IA64_OPND_AR3 || opnd2 == IA64_OPND_AR3) |
| 6658 | { |
| 6659 | while (idesc != NULL |
| 6660 | && (idesc->operands[0] != opnd1 |
| 6661 | || idesc->operands[1] != opnd2)) |
| 6662 | idesc = get_next_opcode (idesc); |
| 6663 | } |
| 6664 | md.slot[curr].idesc = idesc; |
| 6665 | } |
| 6666 | else |
| 6667 | { |
| 6668 | insn_type = idesc->type; |
| 6669 | insn_unit = IA64_UNIT_NIL; |
| 6670 | switch (insn_type) |
| 6671 | { |
| 6672 | case IA64_TYPE_A: |
| 6673 | if (required_unit == IA64_UNIT_I || required_unit == IA64_UNIT_M) |
| 6674 | insn_unit = required_unit; |
| 6675 | break; |
| 6676 | case IA64_TYPE_X: insn_unit = IA64_UNIT_L; break; |
| 6677 | case IA64_TYPE_I: insn_unit = IA64_UNIT_I; break; |
| 6678 | case IA64_TYPE_M: insn_unit = IA64_UNIT_M; break; |
| 6679 | case IA64_TYPE_B: insn_unit = IA64_UNIT_B; break; |
| 6680 | case IA64_TYPE_F: insn_unit = IA64_UNIT_F; break; |
| 6681 | default: break; |
| 6682 | } |
| 6683 | } |
| 6684 | |
| 6685 | if (insn_unit != required_unit) |
| 6686 | continue; /* Try next slot. */ |
| 6687 | |
| 6688 | /* Now is a good time to fix up the labels for this insn. */ |
| 6689 | mark_label = FALSE; |
| 6690 | for (lfix = md.slot[curr].label_fixups; lfix; lfix = lfix->next) |
| 6691 | { |
| 6692 | S_SET_VALUE (lfix->sym, frag_now_fix () - 16); |
| 6693 | symbol_set_frag (lfix->sym, frag_now); |
| 6694 | mark_label |= lfix->dw2_mark_labels; |
| 6695 | } |
| 6696 | for (lfix = md.slot[curr].tag_fixups; lfix; lfix = lfix->next) |
| 6697 | { |
| 6698 | S_SET_VALUE (lfix->sym, frag_now_fix () - 16 + i); |
| 6699 | symbol_set_frag (lfix->sym, frag_now); |
| 6700 | } |
| 6701 | |
| 6702 | if (debug_type == DEBUG_DWARF2 |
| 6703 | || md.slot[curr].loc_directive_seen |
| 6704 | || mark_label) |
| 6705 | { |
| 6706 | bfd_vma addr = frag_now->fr_address + frag_now_fix () - 16 + i; |
| 6707 | |
| 6708 | md.slot[curr].loc_directive_seen = 0; |
| 6709 | if (mark_label) |
| 6710 | md.slot[curr].debug_line.flags |= DWARF2_FLAG_BASIC_BLOCK; |
| 6711 | |
| 6712 | dwarf2_gen_line_info (addr, &md.slot[curr].debug_line); |
| 6713 | } |
| 6714 | |
| 6715 | build_insn (md.slot + curr, insn + i); |
| 6716 | |
| 6717 | ptr = md.slot[curr].unwind_record; |
| 6718 | if (ptr) |
| 6719 | { |
| 6720 | /* Set slot numbers for all remaining unwind records belonging to the |
| 6721 | current insn. There can not be any prologue/body unwind records |
| 6722 | here. */ |
| 6723 | for (; ptr != end_ptr; ptr = ptr->next) |
| 6724 | { |
| 6725 | ptr->slot_number = (unsigned long) f + i; |
| 6726 | ptr->slot_frag = frag_now; |
| 6727 | } |
| 6728 | md.slot[curr].unwind_record = NULL; |
| 6729 | } |
| 6730 | |
| 6731 | if (required_unit == IA64_UNIT_L) |
| 6732 | { |
| 6733 | know (i == 1); |
| 6734 | /* skip one slot for long/X-unit instructions */ |
| 6735 | ++i; |
| 6736 | } |
| 6737 | --md.num_slots_in_use; |
| 6738 | last_slot = i; |
| 6739 | |
| 6740 | for (j = 0; j < md.slot[curr].num_fixups; ++j) |
| 6741 | { |
| 6742 | ifix = md.slot[curr].fixup + j; |
| 6743 | fix = fix_new_exp (frag_now, frag_now_fix () - 16 + i, 8, |
| 6744 | &ifix->expr, ifix->is_pcrel, ifix->code); |
| 6745 | fix->tc_fix_data.opnd = ifix->opnd; |
| 6746 | fix->fx_file = md.slot[curr].src_file; |
| 6747 | fix->fx_line = md.slot[curr].src_line; |
| 6748 | } |
| 6749 | |
| 6750 | end_of_insn_group = md.slot[curr].end_of_insn_group; |
| 6751 | |
| 6752 | /* clear slot: */ |
| 6753 | ia64_free_opcode (md.slot[curr].idesc); |
| 6754 | memset (md.slot + curr, 0, sizeof (md.slot[curr])); |
| 6755 | md.slot[curr].user_template = -1; |
| 6756 | |
| 6757 | if (manual_bundling_off) |
| 6758 | { |
| 6759 | manual_bundling = 0; |
| 6760 | break; |
| 6761 | } |
| 6762 | curr = (curr + 1) % NUM_SLOTS; |
| 6763 | idesc = md.slot[curr].idesc; |
| 6764 | } |
| 6765 | |
| 6766 | /* A user template was specified, but the first following instruction did |
| 6767 | not fit. This can happen with or without manual bundling. */ |
| 6768 | if (md.num_slots_in_use > 0 && last_slot < 0) |
| 6769 | { |
| 6770 | as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line, |
| 6771 | _("`%s' does not fit into %s template"), |
| 6772 | idesc->name, ia64_templ_desc[template_val].name); |
| 6773 | /* Drop first insn so we don't livelock. */ |
| 6774 | --md.num_slots_in_use; |
| 6775 | know (curr == first); |
| 6776 | ia64_free_opcode (md.slot[curr].idesc); |
| 6777 | memset (md.slot + curr, 0, sizeof (md.slot[curr])); |
| 6778 | md.slot[curr].user_template = -1; |
| 6779 | } |
| 6780 | else if (manual_bundling > 0) |
| 6781 | { |
| 6782 | if (md.num_slots_in_use > 0) |
| 6783 | { |
| 6784 | if (last_slot >= 2) |
| 6785 | as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line, |
| 6786 | _("`%s' does not fit into bundle"), idesc->name); |
| 6787 | else |
| 6788 | { |
| 6789 | const char *where; |
| 6790 | |
| 6791 | if (template_val == 2) |
| 6792 | where = "X slot"; |
| 6793 | else if (last_slot == 0) |
| 6794 | where = "slots 2 or 3"; |
| 6795 | else |
| 6796 | where = "slot 3"; |
| 6797 | as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line, |
| 6798 | _("`%s' can't go in %s of %s template"), |
| 6799 | idesc->name, where, ia64_templ_desc[template_val].name); |
| 6800 | } |
| 6801 | } |
| 6802 | else |
| 6803 | as_bad_where (md.slot[curr].src_file, md.slot[curr].src_line, |
| 6804 | _("Missing '}' at end of file")); |
| 6805 | } |
| 6806 | |
| 6807 | know (md.num_slots_in_use < NUM_SLOTS); |
| 6808 | |
| 6809 | t0 = end_of_insn_group | (template_val << 1) | (insn[0] << 5) | (insn[1] << 46); |
| 6810 | t1 = ((insn[1] >> 18) & 0x7fffff) | (insn[2] << 23); |
| 6811 | |
| 6812 | number_to_chars_littleendian (f + 0, t0, 8); |
| 6813 | number_to_chars_littleendian (f + 8, t1, 8); |
| 6814 | } |
| 6815 | |
| 6816 | int |
| 6817 | md_parse_option (int c, char *arg) |
| 6818 | { |
| 6819 | |
| 6820 | switch (c) |
| 6821 | { |
| 6822 | /* Switches from the Intel assembler. */ |
| 6823 | case 'm': |
| 6824 | if (strcmp (arg, "ilp64") == 0 |
| 6825 | || strcmp (arg, "lp64") == 0 |
| 6826 | || strcmp (arg, "p64") == 0) |
| 6827 | { |
| 6828 | md.flags |= EF_IA_64_ABI64; |
| 6829 | } |
| 6830 | else if (strcmp (arg, "ilp32") == 0) |
| 6831 | { |
| 6832 | md.flags &= ~EF_IA_64_ABI64; |
| 6833 | } |
| 6834 | else if (strcmp (arg, "le") == 0) |
| 6835 | { |
| 6836 | md.flags &= ~EF_IA_64_BE; |
| 6837 | default_big_endian = 0; |
| 6838 | } |
| 6839 | else if (strcmp (arg, "be") == 0) |
| 6840 | { |
| 6841 | md.flags |= EF_IA_64_BE; |
| 6842 | default_big_endian = 1; |
| 6843 | } |
| 6844 | else if (strncmp (arg, "unwind-check=", 13) == 0) |
| 6845 | { |
| 6846 | arg += 13; |
| 6847 | if (strcmp (arg, "warning") == 0) |
| 6848 | md.unwind_check = unwind_check_warning; |
| 6849 | else if (strcmp (arg, "error") == 0) |
| 6850 | md.unwind_check = unwind_check_error; |
| 6851 | else |
| 6852 | return 0; |
| 6853 | } |
| 6854 | else if (strncmp (arg, "hint.b=", 7) == 0) |
| 6855 | { |
| 6856 | arg += 7; |
| 6857 | if (strcmp (arg, "ok") == 0) |
| 6858 | md.hint_b = hint_b_ok; |
| 6859 | else if (strcmp (arg, "warning") == 0) |
| 6860 | md.hint_b = hint_b_warning; |
| 6861 | else if (strcmp (arg, "error") == 0) |
| 6862 | md.hint_b = hint_b_error; |
| 6863 | else |
| 6864 | return 0; |
| 6865 | } |
| 6866 | else if (strncmp (arg, "tune=", 5) == 0) |
| 6867 | { |
| 6868 | arg += 5; |
| 6869 | if (strcmp (arg, "itanium1") == 0) |
| 6870 | md.tune = itanium1; |
| 6871 | else if (strcmp (arg, "itanium2") == 0) |
| 6872 | md.tune = itanium2; |
| 6873 | else |
| 6874 | return 0; |
| 6875 | } |
| 6876 | else |
| 6877 | return 0; |
| 6878 | break; |
| 6879 | |
| 6880 | case 'N': |
| 6881 | if (strcmp (arg, "so") == 0) |
| 6882 | { |
| 6883 | /* Suppress signon message. */ |
| 6884 | } |
| 6885 | else if (strcmp (arg, "pi") == 0) |
| 6886 | { |
| 6887 | /* Reject privileged instructions. FIXME */ |
| 6888 | } |
| 6889 | else if (strcmp (arg, "us") == 0) |
| 6890 | { |
| 6891 | /* Allow union of signed and unsigned range. FIXME */ |
| 6892 | } |
| 6893 | else if (strcmp (arg, "close_fcalls") == 0) |
| 6894 | { |
| 6895 | /* Do not resolve global function calls. */ |
| 6896 | } |
| 6897 | else |
| 6898 | return 0; |
| 6899 | break; |
| 6900 | |
| 6901 | case 'C': |
| 6902 | /* temp[="prefix"] Insert temporary labels into the object file |
| 6903 | symbol table prefixed by "prefix". |
| 6904 | Default prefix is ":temp:". |
| 6905 | */ |
| 6906 | break; |
| 6907 | |
| 6908 | case 'a': |
| 6909 | /* indirect=<tgt> Assume unannotated indirect branches behavior |
| 6910 | according to <tgt> -- |
| 6911 | exit: branch out from the current context (default) |
| 6912 | labels: all labels in context may be branch targets |
| 6913 | */ |
| 6914 | if (strncmp (arg, "indirect=", 9) != 0) |
| 6915 | return 0; |
| 6916 | break; |
| 6917 | |
| 6918 | case 'x': |
| 6919 | /* -X conflicts with an ignored option, use -x instead */ |
| 6920 | md.detect_dv = 1; |
| 6921 | if (!arg || strcmp (arg, "explicit") == 0) |
| 6922 | { |
| 6923 | /* set default mode to explicit */ |
| 6924 | md.default_explicit_mode = 1; |
| 6925 | break; |
| 6926 | } |
| 6927 | else if (strcmp (arg, "auto") == 0) |
| 6928 | { |
| 6929 | md.default_explicit_mode = 0; |
| 6930 | } |
| 6931 | else if (strcmp (arg, "none") == 0) |
| 6932 | { |
| 6933 | md.detect_dv = 0; |
| 6934 | } |
| 6935 | else if (strcmp (arg, "debug") == 0) |
| 6936 | { |
| 6937 | md.debug_dv = 1; |
| 6938 | } |
| 6939 | else if (strcmp (arg, "debugx") == 0) |
| 6940 | { |
| 6941 | md.default_explicit_mode = 1; |
| 6942 | md.debug_dv = 1; |
| 6943 | } |
| 6944 | else if (strcmp (arg, "debugn") == 0) |
| 6945 | { |
| 6946 | md.debug_dv = 1; |
| 6947 | md.detect_dv = 0; |
| 6948 | } |
| 6949 | else |
| 6950 | { |
| 6951 | as_bad (_("Unrecognized option '-x%s'"), arg); |
| 6952 | } |
| 6953 | break; |
| 6954 | |
| 6955 | case 'S': |
| 6956 | /* nops Print nops statistics. */ |
| 6957 | break; |
| 6958 | |
| 6959 | /* GNU specific switches for gcc. */ |
| 6960 | case OPTION_MCONSTANT_GP: |
| 6961 | md.flags |= EF_IA_64_CONS_GP; |
| 6962 | break; |
| 6963 | |
| 6964 | case OPTION_MAUTO_PIC: |
| 6965 | md.flags |= EF_IA_64_NOFUNCDESC_CONS_GP; |
| 6966 | break; |
| 6967 | |
| 6968 | default: |
| 6969 | return 0; |
| 6970 | } |
| 6971 | |
| 6972 | return 1; |
| 6973 | } |
| 6974 | |
| 6975 | void |
| 6976 | md_show_usage (FILE *stream) |
| 6977 | { |
| 6978 | fputs (_("\ |
| 6979 | IA-64 options:\n\ |
| 6980 | --mconstant-gp mark output file as using the constant-GP model\n\ |
| 6981 | (sets ELF header flag EF_IA_64_CONS_GP)\n\ |
| 6982 | --mauto-pic mark output file as using the constant-GP model\n\ |
| 6983 | without function descriptors (sets ELF header flag\n\ |
| 6984 | EF_IA_64_NOFUNCDESC_CONS_GP)\n\ |
| 6985 | -milp32|-milp64|-mlp64|-mp64 select data model (default -mlp64)\n\ |
| 6986 | -mle | -mbe select little- or big-endian byte order (default -mle)\n\ |
| 6987 | -mtune=[itanium1|itanium2]\n\ |
| 6988 | tune for a specific CPU (default -mtune=itanium2)\n\ |
| 6989 | -munwind-check=[warning|error]\n\ |
| 6990 | unwind directive check (default -munwind-check=warning)\n\ |
| 6991 | -mhint.b=[ok|warning|error]\n\ |
| 6992 | hint.b check (default -mhint.b=error)\n\ |
| 6993 | -x | -xexplicit turn on dependency violation checking\n\ |
| 6994 | -xauto automagically remove dependency violations (default)\n\ |
| 6995 | -xnone turn off dependency violation checking\n\ |
| 6996 | -xdebug debug dependency violation checker\n\ |
| 6997 | -xdebugn debug dependency violation checker but turn off\n\ |
| 6998 | dependency violation checking\n\ |
| 6999 | -xdebugx debug dependency violation checker and turn on\n\ |
| 7000 | dependency violation checking\n"), |
| 7001 | stream); |
| 7002 | } |
| 7003 | |
| 7004 | void |
| 7005 | ia64_after_parse_args (void) |
| 7006 | { |
| 7007 | if (debug_type == DEBUG_STABS) |
| 7008 | as_fatal (_("--gstabs is not supported for ia64")); |
| 7009 | } |
| 7010 | |
| 7011 | /* Return true if TYPE fits in TEMPL at SLOT. */ |
| 7012 | |
| 7013 | static int |
| 7014 | match (int templ, int type, int slot) |
| 7015 | { |
| 7016 | enum ia64_unit unit; |
| 7017 | int result; |
| 7018 | |
| 7019 | unit = ia64_templ_desc[templ].exec_unit[slot]; |
| 7020 | switch (type) |
| 7021 | { |
| 7022 | case IA64_TYPE_DYN: result = 1; break; /* for nop and break */ |
| 7023 | case IA64_TYPE_A: |
| 7024 | result = (unit == IA64_UNIT_I || unit == IA64_UNIT_M); |
| 7025 | break; |
| 7026 | case IA64_TYPE_X: result = (unit == IA64_UNIT_L); break; |
| 7027 | case IA64_TYPE_I: result = (unit == IA64_UNIT_I); break; |
| 7028 | case IA64_TYPE_M: result = (unit == IA64_UNIT_M); break; |
| 7029 | case IA64_TYPE_B: result = (unit == IA64_UNIT_B); break; |
| 7030 | case IA64_TYPE_F: result = (unit == IA64_UNIT_F); break; |
| 7031 | default: result = 0; break; |
| 7032 | } |
| 7033 | return result; |
| 7034 | } |
| 7035 | |
| 7036 | /* For Itanium 1, add a bit of extra goodness if a nop of type F or B would fit |
| 7037 | in TEMPL at SLOT. For Itanium 2, add a bit of extra goodness if a nop of |
| 7038 | type M or I would fit in TEMPL at SLOT. */ |
| 7039 | |
| 7040 | static inline int |
| 7041 | extra_goodness (int templ, int slot) |
| 7042 | { |
| 7043 | switch (md.tune) |
| 7044 | { |
| 7045 | case itanium1: |
| 7046 | if (slot == 1 && match (templ, IA64_TYPE_F, slot)) |
| 7047 | return 2; |
| 7048 | else if (slot == 2 && match (templ, IA64_TYPE_B, slot)) |
| 7049 | return 1; |
| 7050 | else |
| 7051 | return 0; |
| 7052 | break; |
| 7053 | case itanium2: |
| 7054 | if (match (templ, IA64_TYPE_M, slot) |
| 7055 | || match (templ, IA64_TYPE_I, slot)) |
| 7056 | /* Favor M- and I-unit NOPs. We definitely want to avoid |
| 7057 | F-unit and B-unit may cause split-issue or less-than-optimal |
| 7058 | branch-prediction. */ |
| 7059 | return 2; |
| 7060 | else |
| 7061 | return 0; |
| 7062 | break; |
| 7063 | default: |
| 7064 | abort (); |
| 7065 | return 0; |
| 7066 | } |
| 7067 | } |
| 7068 | |
| 7069 | /* This function is called once, at assembler startup time. It sets |
| 7070 | up all the tables, etc. that the MD part of the assembler will need |
| 7071 | that can be determined before arguments are parsed. */ |
| 7072 | void |
| 7073 | md_begin (void) |
| 7074 | { |
| 7075 | int i, j, k, t, goodness, best, ok; |
| 7076 | const char *err; |
| 7077 | char name[8]; |
| 7078 | |
| 7079 | md.auto_align = 1; |
| 7080 | md.explicit_mode = md.default_explicit_mode; |
| 7081 | |
| 7082 | bfd_set_section_alignment (stdoutput, text_section, 4); |
| 7083 | |
| 7084 | /* Make sure function pointers get initialized. */ |
| 7085 | target_big_endian = -1; |
| 7086 | dot_byteorder (default_big_endian); |
| 7087 | |
| 7088 | alias_hash = hash_new (); |
| 7089 | alias_name_hash = hash_new (); |
| 7090 | secalias_hash = hash_new (); |
| 7091 | secalias_name_hash = hash_new (); |
| 7092 | |
| 7093 | pseudo_func[FUNC_DTP_MODULE].u.sym = |
| 7094 | symbol_new (".<dtpmod>", undefined_section, FUNC_DTP_MODULE, |
| 7095 | &zero_address_frag); |
| 7096 | |
| 7097 | pseudo_func[FUNC_DTP_RELATIVE].u.sym = |
| 7098 | symbol_new (".<dtprel>", undefined_section, FUNC_DTP_RELATIVE, |
| 7099 | &zero_address_frag); |
| 7100 | |
| 7101 | pseudo_func[FUNC_FPTR_RELATIVE].u.sym = |
| 7102 | symbol_new (".<fptr>", undefined_section, FUNC_FPTR_RELATIVE, |
| 7103 | &zero_address_frag); |
| 7104 | |
| 7105 | pseudo_func[FUNC_GP_RELATIVE].u.sym = |
| 7106 | symbol_new (".<gprel>", undefined_section, FUNC_GP_RELATIVE, |
| 7107 | &zero_address_frag); |
| 7108 | |
| 7109 | pseudo_func[FUNC_LT_RELATIVE].u.sym = |
| 7110 | symbol_new (".<ltoff>", undefined_section, FUNC_LT_RELATIVE, |
| 7111 | &zero_address_frag); |
| 7112 | |
| 7113 | pseudo_func[FUNC_LT_RELATIVE_X].u.sym = |
| 7114 | symbol_new (".<ltoffx>", undefined_section, FUNC_LT_RELATIVE_X, |
| 7115 | &zero_address_frag); |
| 7116 | |
| 7117 | pseudo_func[FUNC_PC_RELATIVE].u.sym = |
| 7118 | symbol_new (".<pcrel>", undefined_section, FUNC_PC_RELATIVE, |
| 7119 | &zero_address_frag); |
| 7120 | |
| 7121 | pseudo_func[FUNC_PLT_RELATIVE].u.sym = |
| 7122 | symbol_new (".<pltoff>", undefined_section, FUNC_PLT_RELATIVE, |
| 7123 | &zero_address_frag); |
| 7124 | |
| 7125 | pseudo_func[FUNC_SEC_RELATIVE].u.sym = |
| 7126 | symbol_new (".<secrel>", undefined_section, FUNC_SEC_RELATIVE, |
| 7127 | &zero_address_frag); |
| 7128 | |
| 7129 | pseudo_func[FUNC_SEG_RELATIVE].u.sym = |
| 7130 | symbol_new (".<segrel>", undefined_section, FUNC_SEG_RELATIVE, |
| 7131 | &zero_address_frag); |
| 7132 | |
| 7133 | pseudo_func[FUNC_TP_RELATIVE].u.sym = |
| 7134 | symbol_new (".<tprel>", undefined_section, FUNC_TP_RELATIVE, |
| 7135 | &zero_address_frag); |
| 7136 | |
| 7137 | pseudo_func[FUNC_LTV_RELATIVE].u.sym = |
| 7138 | symbol_new (".<ltv>", undefined_section, FUNC_LTV_RELATIVE, |
| 7139 | &zero_address_frag); |
| 7140 | |
| 7141 | pseudo_func[FUNC_LT_FPTR_RELATIVE].u.sym = |
| 7142 | symbol_new (".<ltoff.fptr>", undefined_section, FUNC_LT_FPTR_RELATIVE, |
| 7143 | &zero_address_frag); |
| 7144 | |
| 7145 | pseudo_func[FUNC_LT_DTP_MODULE].u.sym = |
| 7146 | symbol_new (".<ltoff.dtpmod>", undefined_section, FUNC_LT_DTP_MODULE, |
| 7147 | &zero_address_frag); |
| 7148 | |
| 7149 | pseudo_func[FUNC_LT_DTP_RELATIVE].u.sym = |
| 7150 | symbol_new (".<ltoff.dptrel>", undefined_section, FUNC_LT_DTP_RELATIVE, |
| 7151 | &zero_address_frag); |
| 7152 | |
| 7153 | pseudo_func[FUNC_LT_TP_RELATIVE].u.sym = |
| 7154 | symbol_new (".<ltoff.tprel>", undefined_section, FUNC_LT_TP_RELATIVE, |
| 7155 | &zero_address_frag); |
| 7156 | |
| 7157 | pseudo_func[FUNC_IPLT_RELOC].u.sym = |
| 7158 | symbol_new (".<iplt>", undefined_section, FUNC_IPLT_RELOC, |
| 7159 | &zero_address_frag); |
| 7160 | |
| 7161 | if (md.tune != itanium1) |
| 7162 | { |
| 7163 | /* Convert MFI NOPs bundles into MMI NOPs bundles. */ |
| 7164 | le_nop[0] = 0x8; |
| 7165 | le_nop_stop[0] = 0x9; |
| 7166 | } |
| 7167 | |
| 7168 | /* Compute the table of best templates. We compute goodness as a |
| 7169 | base 4 value, in which each match counts for 3. Match-failures |
| 7170 | result in NOPs and we use extra_goodness() to pick the execution |
| 7171 | units that are best suited for issuing the NOP. */ |
| 7172 | for (i = 0; i < IA64_NUM_TYPES; ++i) |
| 7173 | for (j = 0; j < IA64_NUM_TYPES; ++j) |
| 7174 | for (k = 0; k < IA64_NUM_TYPES; ++k) |
| 7175 | { |
| 7176 | best = 0; |
| 7177 | for (t = 0; t < NELEMS (ia64_templ_desc); ++t) |
| 7178 | { |
| 7179 | goodness = 0; |
| 7180 | if (match (t, i, 0)) |
| 7181 | { |
| 7182 | if (match (t, j, 1)) |
| 7183 | { |
| 7184 | if ((t == 2 && j == IA64_TYPE_X) || match (t, k, 2)) |
| 7185 | goodness = 3 + 3 + 3; |
| 7186 | else |
| 7187 | goodness = 3 + 3 + extra_goodness (t, 2); |
| 7188 | } |
| 7189 | else if (match (t, j, 2)) |
| 7190 | goodness = 3 + 3 + extra_goodness (t, 1); |
| 7191 | else |
| 7192 | { |
| 7193 | goodness = 3; |
| 7194 | goodness += extra_goodness (t, 1); |
| 7195 | goodness += extra_goodness (t, 2); |
| 7196 | } |
| 7197 | } |
| 7198 | else if (match (t, i, 1)) |
| 7199 | { |
| 7200 | if ((t == 2 && i == IA64_TYPE_X) || match (t, j, 2)) |
| 7201 | goodness = 3 + 3; |
| 7202 | else |
| 7203 | goodness = 3 + extra_goodness (t, 2); |
| 7204 | } |
| 7205 | else if (match (t, i, 2)) |
| 7206 | goodness = 3 + extra_goodness (t, 1); |
| 7207 | |
| 7208 | if (goodness > best) |
| 7209 | { |
| 7210 | best = goodness; |
| 7211 | best_template[i][j][k] = t; |
| 7212 | } |
| 7213 | } |
| 7214 | } |
| 7215 | |
| 7216 | #ifdef DEBUG_TEMPLATES |
| 7217 | /* For debugging changes to the best_template calculations. We don't care |
| 7218 | about combinations with invalid instructions, so start the loops at 1. */ |
| 7219 | for (i = 0; i < IA64_NUM_TYPES; ++i) |
| 7220 | for (j = 0; j < IA64_NUM_TYPES; ++j) |
| 7221 | for (k = 0; k < IA64_NUM_TYPES; ++k) |
| 7222 | { |
| 7223 | char type_letter[IA64_NUM_TYPES] = { 'n', 'a', 'i', 'm', 'b', 'f', |
| 7224 | 'x', 'd' }; |
| 7225 | fprintf (stderr, "%c%c%c %s\n", type_letter[i], type_letter[j], |
| 7226 | type_letter[k], |
| 7227 | ia64_templ_desc[best_template[i][j][k]].name); |
| 7228 | } |
| 7229 | #endif |
| 7230 | |
| 7231 | for (i = 0; i < NUM_SLOTS; ++i) |
| 7232 | md.slot[i].user_template = -1; |
| 7233 | |
| 7234 | md.pseudo_hash = hash_new (); |
| 7235 | for (i = 0; i < NELEMS (pseudo_opcode); ++i) |
| 7236 | { |
| 7237 | err = hash_insert (md.pseudo_hash, pseudo_opcode[i].name, |
| 7238 | (void *) (pseudo_opcode + i)); |
| 7239 | if (err) |
| 7240 | as_fatal (_("ia64.md_begin: can't hash `%s': %s"), |
| 7241 | pseudo_opcode[i].name, err); |
| 7242 | } |
| 7243 | |
| 7244 | md.reg_hash = hash_new (); |
| 7245 | md.dynreg_hash = hash_new (); |
| 7246 | md.const_hash = hash_new (); |
| 7247 | md.entry_hash = hash_new (); |
| 7248 | |
| 7249 | /* general registers: */ |
| 7250 | declare_register_set ("r", 128, REG_GR); |
| 7251 | declare_register ("gp", REG_GR + 1); |
| 7252 | declare_register ("sp", REG_GR + 12); |
| 7253 | declare_register ("tp", REG_GR + 13); |
| 7254 | declare_register_set ("ret", 4, REG_GR + 8); |
| 7255 | |
| 7256 | /* floating point registers: */ |
| 7257 | declare_register_set ("f", 128, REG_FR); |
| 7258 | declare_register_set ("farg", 8, REG_FR + 8); |
| 7259 | declare_register_set ("fret", 8, REG_FR + 8); |
| 7260 | |
| 7261 | /* branch registers: */ |
| 7262 | declare_register_set ("b", 8, REG_BR); |
| 7263 | declare_register ("rp", REG_BR + 0); |
| 7264 | |
| 7265 | /* predicate registers: */ |
| 7266 | declare_register_set ("p", 64, REG_P); |
| 7267 | declare_register ("pr", REG_PR); |
| 7268 | declare_register ("pr.rot", REG_PR_ROT); |
| 7269 | |
| 7270 | /* application registers: */ |
| 7271 | declare_register_set ("ar", 128, REG_AR); |
| 7272 | for (i = 0; i < NELEMS (ar); ++i) |
| 7273 | declare_register (ar[i].name, REG_AR + ar[i].regnum); |
| 7274 | |
| 7275 | /* control registers: */ |
| 7276 | declare_register_set ("cr", 128, REG_CR); |
| 7277 | for (i = 0; i < NELEMS (cr); ++i) |
| 7278 | declare_register (cr[i].name, REG_CR + cr[i].regnum); |
| 7279 | |
| 7280 | declare_register ("ip", REG_IP); |
| 7281 | declare_register ("cfm", REG_CFM); |
| 7282 | declare_register ("psr", REG_PSR); |
| 7283 | declare_register ("psr.l", REG_PSR_L); |
| 7284 | declare_register ("psr.um", REG_PSR_UM); |
| 7285 | |
| 7286 | for (i = 0; i < NELEMS (indirect_reg); ++i) |
| 7287 | { |
| 7288 | unsigned int regnum = indirect_reg[i].regnum; |
| 7289 | |
| 7290 | md.indregsym[regnum - IND_CPUID] = declare_register (indirect_reg[i].name, regnum); |
| 7291 | } |
| 7292 | |
| 7293 | /* pseudo-registers used to specify unwind info: */ |
| 7294 | declare_register ("psp", REG_PSP); |
| 7295 | |
| 7296 | for (i = 0; i < NELEMS (const_bits); ++i) |
| 7297 | { |
| 7298 | err = hash_insert (md.const_hash, const_bits[i].name, |
| 7299 | (void *) (const_bits + i)); |
| 7300 | if (err) |
| 7301 | as_fatal (_("Inserting \"%s\" into constant hash table failed: %s"), |
| 7302 | name, err); |
| 7303 | } |
| 7304 | |
| 7305 | /* Set the architecture and machine depending on defaults and command line |
| 7306 | options. */ |
| 7307 | if (md.flags & EF_IA_64_ABI64) |
| 7308 | ok = bfd_set_arch_mach (stdoutput, bfd_arch_ia64, bfd_mach_ia64_elf64); |
| 7309 | else |
| 7310 | ok = bfd_set_arch_mach (stdoutput, bfd_arch_ia64, bfd_mach_ia64_elf32); |
| 7311 | |
| 7312 | if (! ok) |
| 7313 | as_warn (_("Could not set architecture and machine")); |
| 7314 | |
| 7315 | /* Set the pointer size and pointer shift size depending on md.flags */ |
| 7316 | |
| 7317 | if (md.flags & EF_IA_64_ABI64) |
| 7318 | { |
| 7319 | md.pointer_size = 8; /* pointers are 8 bytes */ |
| 7320 | md.pointer_size_shift = 3; /* alignment is 8 bytes = 2^2 */ |
| 7321 | } |
| 7322 | else |
| 7323 | { |
| 7324 | md.pointer_size = 4; /* pointers are 4 bytes */ |
| 7325 | md.pointer_size_shift = 2; /* alignment is 4 bytes = 2^2 */ |
| 7326 | } |
| 7327 | |
| 7328 | md.mem_offset.hint = 0; |
| 7329 | md.path = 0; |
| 7330 | md.maxpaths = 0; |
| 7331 | md.entry_labels = NULL; |
| 7332 | } |
| 7333 | |
| 7334 | /* Set the default options in md. Cannot do this in md_begin because |
| 7335 | that is called after md_parse_option which is where we set the |
| 7336 | options in md based on command line options. */ |
| 7337 | |
| 7338 | void |
| 7339 | ia64_init (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) |
| 7340 | { |
| 7341 | md.flags = MD_FLAGS_DEFAULT; |
| 7342 | #ifndef TE_VMS |
| 7343 | /* Don't turn on dependency checking for VMS, doesn't work. */ |
| 7344 | md.detect_dv = 1; |
| 7345 | #endif |
| 7346 | /* FIXME: We should change it to unwind_check_error someday. */ |
| 7347 | md.unwind_check = unwind_check_warning; |
| 7348 | md.hint_b = hint_b_error; |
| 7349 | md.tune = itanium2; |
| 7350 | } |
| 7351 | |
| 7352 | /* Return a string for the target object file format. */ |
| 7353 | |
| 7354 | const char * |
| 7355 | ia64_target_format (void) |
| 7356 | { |
| 7357 | if (OUTPUT_FLAVOR == bfd_target_elf_flavour) |
| 7358 | { |
| 7359 | if (md.flags & EF_IA_64_BE) |
| 7360 | { |
| 7361 | if (md.flags & EF_IA_64_ABI64) |
| 7362 | #if defined(TE_AIX50) |
| 7363 | return "elf64-ia64-aix-big"; |
| 7364 | #elif defined(TE_HPUX) |
| 7365 | return "elf64-ia64-hpux-big"; |
| 7366 | #else |
| 7367 | return "elf64-ia64-big"; |
| 7368 | #endif |
| 7369 | else |
| 7370 | #if defined(TE_AIX50) |
| 7371 | return "elf32-ia64-aix-big"; |
| 7372 | #elif defined(TE_HPUX) |
| 7373 | return "elf32-ia64-hpux-big"; |
| 7374 | #else |
| 7375 | return "elf32-ia64-big"; |
| 7376 | #endif |
| 7377 | } |
| 7378 | else |
| 7379 | { |
| 7380 | if (md.flags & EF_IA_64_ABI64) |
| 7381 | #if defined (TE_AIX50) |
| 7382 | return "elf64-ia64-aix-little"; |
| 7383 | #elif defined (TE_VMS) |
| 7384 | { |
| 7385 | md.flags |= EF_IA_64_ARCHVER_1; |
| 7386 | return "elf64-ia64-vms"; |
| 7387 | } |
| 7388 | #else |
| 7389 | return "elf64-ia64-little"; |
| 7390 | #endif |
| 7391 | else |
| 7392 | #ifdef TE_AIX50 |
| 7393 | return "elf32-ia64-aix-little"; |
| 7394 | #else |
| 7395 | return "elf32-ia64-little"; |
| 7396 | #endif |
| 7397 | } |
| 7398 | } |
| 7399 | else |
| 7400 | return "unknown-format"; |
| 7401 | } |
| 7402 | |
| 7403 | void |
| 7404 | ia64_end_of_source (void) |
| 7405 | { |
| 7406 | /* terminate insn group upon reaching end of file: */ |
| 7407 | insn_group_break (1, 0, 0); |
| 7408 | |
| 7409 | /* emits slots we haven't written yet: */ |
| 7410 | ia64_flush_insns (); |
| 7411 | |
| 7412 | bfd_set_private_flags (stdoutput, md.flags); |
| 7413 | |
| 7414 | md.mem_offset.hint = 0; |
| 7415 | } |
| 7416 | |
| 7417 | void |
| 7418 | ia64_start_line (void) |
| 7419 | { |
| 7420 | static int first; |
| 7421 | |
| 7422 | if (!first) { |
| 7423 | /* Make sure we don't reference input_line_pointer[-1] when that's |
| 7424 | not valid. */ |
| 7425 | first = 1; |
| 7426 | return; |
| 7427 | } |
| 7428 | |
| 7429 | if (md.qp.X_op == O_register) |
| 7430 | as_bad (_("qualifying predicate not followed by instruction")); |
| 7431 | md.qp.X_op = O_absent; |
| 7432 | |
| 7433 | if (ignore_input ()) |
| 7434 | return; |
| 7435 | |
| 7436 | if (input_line_pointer[0] == ';' && input_line_pointer[-1] == ';') |
| 7437 | { |
| 7438 | if (md.detect_dv && !md.explicit_mode) |
| 7439 | { |
| 7440 | static int warned; |
| 7441 | |
| 7442 | if (!warned) |
| 7443 | { |
| 7444 | warned = 1; |
| 7445 | as_warn (_("Explicit stops are ignored in auto mode")); |
| 7446 | } |
| 7447 | } |
| 7448 | else |
| 7449 | insn_group_break (1, 0, 0); |
| 7450 | } |
| 7451 | else if (input_line_pointer[-1] == '{') |
| 7452 | { |
| 7453 | if (md.manual_bundling) |
| 7454 | as_warn (_("Found '{' when manual bundling is already turned on")); |
| 7455 | else |
| 7456 | CURR_SLOT.manual_bundling_on = 1; |
| 7457 | md.manual_bundling = 1; |
| 7458 | |
| 7459 | /* Bundling is only acceptable in explicit mode |
| 7460 | or when in default automatic mode. */ |
| 7461 | if (md.detect_dv && !md.explicit_mode) |
| 7462 | { |
| 7463 | if (!md.mode_explicitly_set |
| 7464 | && !md.default_explicit_mode) |
| 7465 | dot_dv_mode ('E'); |
| 7466 | else |
| 7467 | as_warn (_("Found '{' after explicit switch to automatic mode")); |
| 7468 | } |
| 7469 | } |
| 7470 | else if (input_line_pointer[-1] == '}') |
| 7471 | { |
| 7472 | if (!md.manual_bundling) |
| 7473 | as_warn (_("Found '}' when manual bundling is off")); |
| 7474 | else |
| 7475 | PREV_SLOT.manual_bundling_off = 1; |
| 7476 | md.manual_bundling = 0; |
| 7477 | |
| 7478 | /* switch back to automatic mode, if applicable */ |
| 7479 | if (md.detect_dv |
| 7480 | && md.explicit_mode |
| 7481 | && !md.mode_explicitly_set |
| 7482 | && !md.default_explicit_mode) |
| 7483 | dot_dv_mode ('A'); |
| 7484 | } |
| 7485 | } |
| 7486 | |
| 7487 | /* This is a hook for ia64_frob_label, so that it can distinguish tags from |
| 7488 | labels. */ |
| 7489 | static int defining_tag = 0; |
| 7490 | |
| 7491 | int |
| 7492 | ia64_unrecognized_line (int ch) |
| 7493 | { |
| 7494 | switch (ch) |
| 7495 | { |
| 7496 | case '(': |
| 7497 | expression_and_evaluate (&md.qp); |
| 7498 | if (*input_line_pointer++ != ')') |
| 7499 | { |
| 7500 | as_bad (_("Expected ')'")); |
| 7501 | return 0; |
| 7502 | } |
| 7503 | if (md.qp.X_op != O_register) |
| 7504 | { |
| 7505 | as_bad (_("Qualifying predicate expected")); |
| 7506 | return 0; |
| 7507 | } |
| 7508 | if (md.qp.X_add_number < REG_P || md.qp.X_add_number >= REG_P + 64) |
| 7509 | { |
| 7510 | as_bad (_("Predicate register expected")); |
| 7511 | return 0; |
| 7512 | } |
| 7513 | return 1; |
| 7514 | |
| 7515 | case '[': |
| 7516 | { |
| 7517 | char *s; |
| 7518 | char c; |
| 7519 | symbolS *tag; |
| 7520 | int temp; |
| 7521 | |
| 7522 | if (md.qp.X_op == O_register) |
| 7523 | { |
| 7524 | as_bad (_("Tag must come before qualifying predicate.")); |
| 7525 | return 0; |
| 7526 | } |
| 7527 | |
| 7528 | /* This implements just enough of read_a_source_file in read.c to |
| 7529 | recognize labels. */ |
| 7530 | if (is_name_beginner (*input_line_pointer)) |
| 7531 | { |
| 7532 | s = input_line_pointer; |
| 7533 | c = get_symbol_end (); |
| 7534 | } |
| 7535 | else if (LOCAL_LABELS_FB |
| 7536 | && ISDIGIT (*input_line_pointer)) |
| 7537 | { |
| 7538 | temp = 0; |
| 7539 | while (ISDIGIT (*input_line_pointer)) |
| 7540 | temp = (temp * 10) + *input_line_pointer++ - '0'; |
| 7541 | fb_label_instance_inc (temp); |
| 7542 | s = fb_label_name (temp, 0); |
| 7543 | c = *input_line_pointer; |
| 7544 | } |
| 7545 | else |
| 7546 | { |
| 7547 | s = NULL; |
| 7548 | c = '\0'; |
| 7549 | } |
| 7550 | if (c != ':') |
| 7551 | { |
| 7552 | /* Put ':' back for error messages' sake. */ |
| 7553 | *input_line_pointer++ = ':'; |
| 7554 | as_bad (_("Expected ':'")); |
| 7555 | return 0; |
| 7556 | } |
| 7557 | |
| 7558 | defining_tag = 1; |
| 7559 | tag = colon (s); |
| 7560 | defining_tag = 0; |
| 7561 | /* Put ':' back for error messages' sake. */ |
| 7562 | *input_line_pointer++ = ':'; |
| 7563 | if (*input_line_pointer++ != ']') |
| 7564 | { |
| 7565 | as_bad (_("Expected ']'")); |
| 7566 | return 0; |
| 7567 | } |
| 7568 | if (! tag) |
| 7569 | { |
| 7570 | as_bad (_("Tag name expected")); |
| 7571 | return 0; |
| 7572 | } |
| 7573 | return 1; |
| 7574 | } |
| 7575 | |
| 7576 | default: |
| 7577 | break; |
| 7578 | } |
| 7579 | |
| 7580 | /* Not a valid line. */ |
| 7581 | return 0; |
| 7582 | } |
| 7583 | |
| 7584 | void |
| 7585 | ia64_frob_label (struct symbol *sym) |
| 7586 | { |
| 7587 | struct label_fix *fix; |
| 7588 | |
| 7589 | /* Tags need special handling since they are not bundle breaks like |
| 7590 | labels. */ |
| 7591 | if (defining_tag) |
| 7592 | { |
| 7593 | fix = obstack_alloc (¬es, sizeof (*fix)); |
| 7594 | fix->sym = sym; |
| 7595 | fix->next = CURR_SLOT.tag_fixups; |
| 7596 | fix->dw2_mark_labels = FALSE; |
| 7597 | CURR_SLOT.tag_fixups = fix; |
| 7598 | |
| 7599 | return; |
| 7600 | } |
| 7601 | |
| 7602 | if (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) |
| 7603 | { |
| 7604 | md.last_text_seg = now_seg; |
| 7605 | fix = obstack_alloc (¬es, sizeof (*fix)); |
| 7606 | fix->sym = sym; |
| 7607 | fix->next = CURR_SLOT.label_fixups; |
| 7608 | fix->dw2_mark_labels = dwarf2_loc_mark_labels; |
| 7609 | CURR_SLOT.label_fixups = fix; |
| 7610 | |
| 7611 | /* Keep track of how many code entry points we've seen. */ |
| 7612 | if (md.path == md.maxpaths) |
| 7613 | { |
| 7614 | md.maxpaths += 20; |
| 7615 | md.entry_labels = (const char **) |
| 7616 | xrealloc ((void *) md.entry_labels, |
| 7617 | md.maxpaths * sizeof (char *)); |
| 7618 | } |
| 7619 | md.entry_labels[md.path++] = S_GET_NAME (sym); |
| 7620 | } |
| 7621 | } |
| 7622 | |
| 7623 | #ifdef TE_HPUX |
| 7624 | /* The HP-UX linker will give unresolved symbol errors for symbols |
| 7625 | that are declared but unused. This routine removes declared, |
| 7626 | unused symbols from an object. */ |
| 7627 | int |
| 7628 | ia64_frob_symbol (struct symbol *sym) |
| 7629 | { |
| 7630 | if ((S_GET_SEGMENT (sym) == &bfd_und_section && ! symbol_used_p (sym) && |
| 7631 | ELF_ST_VISIBILITY (S_GET_OTHER (sym)) == STV_DEFAULT) |
| 7632 | || (S_GET_SEGMENT (sym) == &bfd_abs_section |
| 7633 | && ! S_IS_EXTERNAL (sym))) |
| 7634 | return 1; |
| 7635 | return 0; |
| 7636 | } |
| 7637 | #endif |
| 7638 | |
| 7639 | void |
| 7640 | ia64_flush_pending_output (void) |
| 7641 | { |
| 7642 | if (!md.keep_pending_output |
| 7643 | && bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) |
| 7644 | { |
| 7645 | /* ??? This causes many unnecessary stop bits to be emitted. |
| 7646 | Unfortunately, it isn't clear if it is safe to remove this. */ |
| 7647 | insn_group_break (1, 0, 0); |
| 7648 | ia64_flush_insns (); |
| 7649 | } |
| 7650 | } |
| 7651 | |
| 7652 | /* Do ia64-specific expression optimization. All that's done here is |
| 7653 | to transform index expressions that are either due to the indexing |
| 7654 | of rotating registers or due to the indexing of indirect register |
| 7655 | sets. */ |
| 7656 | int |
| 7657 | ia64_optimize_expr (expressionS *l, operatorT op, expressionS *r) |
| 7658 | { |
| 7659 | if (op != O_index) |
| 7660 | return 0; |
| 7661 | resolve_expression (l); |
| 7662 | if (l->X_op == O_register) |
| 7663 | { |
| 7664 | unsigned num_regs = l->X_add_number >> 16; |
| 7665 | |
| 7666 | resolve_expression (r); |
| 7667 | if (num_regs) |
| 7668 | { |
| 7669 | /* Left side is a .rotX-allocated register. */ |
| 7670 | if (r->X_op != O_constant) |
| 7671 | { |
| 7672 | as_bad (_("Rotating register index must be a non-negative constant")); |
| 7673 | r->X_add_number = 0; |
| 7674 | } |
| 7675 | else if ((valueT) r->X_add_number >= num_regs) |
| 7676 | { |
| 7677 | as_bad (_("Index out of range 0..%u"), num_regs - 1); |
| 7678 | r->X_add_number = 0; |
| 7679 | } |
| 7680 | l->X_add_number = (l->X_add_number & 0xffff) + r->X_add_number; |
| 7681 | return 1; |
| 7682 | } |
| 7683 | else if (l->X_add_number >= IND_CPUID && l->X_add_number <= IND_RR) |
| 7684 | { |
| 7685 | if (r->X_op != O_register |
| 7686 | || r->X_add_number < REG_GR |
| 7687 | || r->X_add_number > REG_GR + 127) |
| 7688 | { |
| 7689 | as_bad (_("Indirect register index must be a general register")); |
| 7690 | r->X_add_number = REG_GR; |
| 7691 | } |
| 7692 | l->X_op = O_index; |
| 7693 | l->X_op_symbol = md.indregsym[l->X_add_number - IND_CPUID]; |
| 7694 | l->X_add_number = r->X_add_number; |
| 7695 | return 1; |
| 7696 | } |
| 7697 | } |
| 7698 | as_bad (_("Index can only be applied to rotating or indirect registers")); |
| 7699 | /* Fall back to some register use of which has as little as possible |
| 7700 | side effects, to minimize subsequent error messages. */ |
| 7701 | l->X_op = O_register; |
| 7702 | l->X_add_number = REG_GR + 3; |
| 7703 | return 1; |
| 7704 | } |
| 7705 | |
| 7706 | int |
| 7707 | ia64_parse_name (char *name, expressionS *e, char *nextcharP) |
| 7708 | { |
| 7709 | struct const_desc *cdesc; |
| 7710 | struct dynreg *dr = 0; |
| 7711 | unsigned int idx; |
| 7712 | struct symbol *sym; |
| 7713 | char *end; |
| 7714 | |
| 7715 | if (*name == '@') |
| 7716 | { |
| 7717 | enum pseudo_type pseudo_type = PSEUDO_FUNC_NONE; |
| 7718 | |
| 7719 | /* Find what relocation pseudo-function we're dealing with. */ |
| 7720 | for (idx = 0; idx < NELEMS (pseudo_func); ++idx) |
| 7721 | if (pseudo_func[idx].name |
| 7722 | && pseudo_func[idx].name[0] == name[1] |
| 7723 | && strcmp (pseudo_func[idx].name + 1, name + 2) == 0) |
| 7724 | { |
| 7725 | pseudo_type = pseudo_func[idx].type; |
| 7726 | break; |
| 7727 | } |
| 7728 | switch (pseudo_type) |
| 7729 | { |
| 7730 | case PSEUDO_FUNC_RELOC: |
| 7731 | end = input_line_pointer; |
| 7732 | if (*nextcharP != '(') |
| 7733 | { |
| 7734 | as_bad (_("Expected '('")); |
| 7735 | break; |
| 7736 | } |
| 7737 | /* Skip '('. */ |
| 7738 | ++input_line_pointer; |
| 7739 | expression (e); |
| 7740 | if (*input_line_pointer != ')') |
| 7741 | { |
| 7742 | as_bad (_("Missing ')'")); |
| 7743 | goto done; |
| 7744 | } |
| 7745 | /* Skip ')'. */ |
| 7746 | ++input_line_pointer; |
| 7747 | if (e->X_op != O_symbol) |
| 7748 | { |
| 7749 | if (e->X_op != O_pseudo_fixup) |
| 7750 | { |
| 7751 | as_bad (_("Not a symbolic expression")); |
| 7752 | goto done; |
| 7753 | } |
| 7754 | if (idx != FUNC_LT_RELATIVE) |
| 7755 | { |
| 7756 | as_bad (_("Illegal combination of relocation functions")); |
| 7757 | goto done; |
| 7758 | } |
| 7759 | switch (S_GET_VALUE (e->X_op_symbol)) |
| 7760 | { |
| 7761 | case FUNC_FPTR_RELATIVE: |
| 7762 | idx = FUNC_LT_FPTR_RELATIVE; break; |
| 7763 | case FUNC_DTP_MODULE: |
| 7764 | idx = FUNC_LT_DTP_MODULE; break; |
| 7765 | case FUNC_DTP_RELATIVE: |
| 7766 | idx = FUNC_LT_DTP_RELATIVE; break; |
| 7767 | case FUNC_TP_RELATIVE: |
| 7768 | idx = FUNC_LT_TP_RELATIVE; break; |
| 7769 | default: |
| 7770 | as_bad (_("Illegal combination of relocation functions")); |
| 7771 | goto done; |
| 7772 | } |
| 7773 | } |
| 7774 | /* Make sure gas doesn't get rid of local symbols that are used |
| 7775 | in relocs. */ |
| 7776 | e->X_op = O_pseudo_fixup; |
| 7777 | e->X_op_symbol = pseudo_func[idx].u.sym; |
| 7778 | done: |
| 7779 | *nextcharP = *input_line_pointer; |
| 7780 | break; |
| 7781 | |
| 7782 | case PSEUDO_FUNC_CONST: |
| 7783 | e->X_op = O_constant; |
| 7784 | e->X_add_number = pseudo_func[idx].u.ival; |
| 7785 | break; |
| 7786 | |
| 7787 | case PSEUDO_FUNC_REG: |
| 7788 | e->X_op = O_register; |
| 7789 | e->X_add_number = pseudo_func[idx].u.ival; |
| 7790 | break; |
| 7791 | |
| 7792 | default: |
| 7793 | return 0; |
| 7794 | } |
| 7795 | return 1; |
| 7796 | } |
| 7797 | |
| 7798 | /* first see if NAME is a known register name: */ |
| 7799 | sym = hash_find (md.reg_hash, name); |
| 7800 | if (sym) |
| 7801 | { |
| 7802 | e->X_op = O_register; |
| 7803 | e->X_add_number = S_GET_VALUE (sym); |
| 7804 | return 1; |
| 7805 | } |
| 7806 | |
| 7807 | cdesc = hash_find (md.const_hash, name); |
| 7808 | if (cdesc) |
| 7809 | { |
| 7810 | e->X_op = O_constant; |
| 7811 | e->X_add_number = cdesc->value; |
| 7812 | return 1; |
| 7813 | } |
| 7814 | |
| 7815 | /* check for inN, locN, or outN: */ |
| 7816 | idx = 0; |
| 7817 | switch (name[0]) |
| 7818 | { |
| 7819 | case 'i': |
| 7820 | if (name[1] == 'n' && ISDIGIT (name[2])) |
| 7821 | { |
| 7822 | dr = &md.in; |
| 7823 | idx = 2; |
| 7824 | } |
| 7825 | break; |
| 7826 | |
| 7827 | case 'l': |
| 7828 | if (name[1] == 'o' && name[2] == 'c' && ISDIGIT (name[3])) |
| 7829 | { |
| 7830 | dr = &md.loc; |
| 7831 | idx = 3; |
| 7832 | } |
| 7833 | break; |
| 7834 | |
| 7835 | case 'o': |
| 7836 | if (name[1] == 'u' && name[2] == 't' && ISDIGIT (name[3])) |
| 7837 | { |
| 7838 | dr = &md.out; |
| 7839 | idx = 3; |
| 7840 | } |
| 7841 | break; |
| 7842 | |
| 7843 | default: |
| 7844 | break; |
| 7845 | } |
| 7846 | |
| 7847 | /* Ignore register numbers with leading zeroes, except zero itself. */ |
| 7848 | if (dr && (name[idx] != '0' || name[idx + 1] == '\0')) |
| 7849 | { |
| 7850 | unsigned long regnum; |
| 7851 | |
| 7852 | /* The name is inN, locN, or outN; parse the register number. */ |
| 7853 | regnum = strtoul (name + idx, &end, 10); |
| 7854 | if (end > name + idx && *end == '\0' && regnum < 96) |
| 7855 | { |
| 7856 | if (regnum >= dr->num_regs) |
| 7857 | { |
| 7858 | if (!dr->num_regs) |
| 7859 | as_bad (_("No current frame")); |
| 7860 | else |
| 7861 | as_bad (_("Register number out of range 0..%u"), |
| 7862 | dr->num_regs - 1); |
| 7863 | regnum = 0; |
| 7864 | } |
| 7865 | e->X_op = O_register; |
| 7866 | e->X_add_number = dr->base + regnum; |
| 7867 | return 1; |
| 7868 | } |
| 7869 | } |
| 7870 | |
| 7871 | end = alloca (strlen (name) + 1); |
| 7872 | strcpy (end, name); |
| 7873 | name = ia64_canonicalize_symbol_name (end); |
| 7874 | if ((dr = hash_find (md.dynreg_hash, name))) |
| 7875 | { |
| 7876 | /* We've got ourselves the name of a rotating register set. |
| 7877 | Store the base register number in the low 16 bits of |
| 7878 | X_add_number and the size of the register set in the top 16 |
| 7879 | bits. */ |
| 7880 | e->X_op = O_register; |
| 7881 | e->X_add_number = dr->base | (dr->num_regs << 16); |
| 7882 | return 1; |
| 7883 | } |
| 7884 | return 0; |
| 7885 | } |
| 7886 | |
| 7887 | /* Remove the '#' suffix that indicates a symbol as opposed to a register. */ |
| 7888 | |
| 7889 | char * |
| 7890 | ia64_canonicalize_symbol_name (char *name) |
| 7891 | { |
| 7892 | size_t len = strlen (name), full = len; |
| 7893 | |
| 7894 | while (len > 0 && name[len - 1] == '#') |
| 7895 | --len; |
| 7896 | if (len <= 0) |
| 7897 | { |
| 7898 | if (full > 0) |
| 7899 | as_bad (_("Standalone `#' is illegal")); |
| 7900 | } |
| 7901 | else if (len < full - 1) |
| 7902 | as_warn (_("Redundant `#' suffix operators")); |
| 7903 | name[len] = '\0'; |
| 7904 | return name; |
| 7905 | } |
| 7906 | |
| 7907 | /* Return true if idesc is a conditional branch instruction. This excludes |
| 7908 | the modulo scheduled branches, and br.ia. Mod-sched branches are excluded |
| 7909 | because they always read/write resources regardless of the value of the |
| 7910 | qualifying predicate. br.ia must always use p0, and hence is always |
| 7911 | taken. Thus this function returns true for branches which can fall |
| 7912 | through, and which use no resources if they do fall through. */ |
| 7913 | |
| 7914 | static int |
| 7915 | is_conditional_branch (struct ia64_opcode *idesc) |
| 7916 | { |
| 7917 | /* br is a conditional branch. Everything that starts with br. except |
| 7918 | br.ia, br.c{loop,top,exit}, and br.w{top,exit} is a conditional branch. |
| 7919 | Everything that starts with brl is a conditional branch. */ |
| 7920 | return (idesc->name[0] == 'b' && idesc->name[1] == 'r' |
| 7921 | && (idesc->name[2] == '\0' |
| 7922 | || (idesc->name[2] == '.' && idesc->name[3] != 'i' |
| 7923 | && idesc->name[3] != 'c' && idesc->name[3] != 'w') |
| 7924 | || idesc->name[2] == 'l' |
| 7925 | /* br.cond, br.call, br.clr */ |
| 7926 | || (idesc->name[2] == '.' && idesc->name[3] == 'c' |
| 7927 | && (idesc->name[4] == 'a' || idesc->name[4] == 'o' |
| 7928 | || (idesc->name[4] == 'l' && idesc->name[5] == 'r'))))); |
| 7929 | } |
| 7930 | |
| 7931 | /* Return whether the given opcode is a taken branch. If there's any doubt, |
| 7932 | returns zero. */ |
| 7933 | |
| 7934 | static int |
| 7935 | is_taken_branch (struct ia64_opcode *idesc) |
| 7936 | { |
| 7937 | return ((is_conditional_branch (idesc) && CURR_SLOT.qp_regno == 0) |
| 7938 | || strncmp (idesc->name, "br.ia", 5) == 0); |
| 7939 | } |
| 7940 | |
| 7941 | /* Return whether the given opcode is an interruption or rfi. If there's any |
| 7942 | doubt, returns zero. */ |
| 7943 | |
| 7944 | static int |
| 7945 | is_interruption_or_rfi (struct ia64_opcode *idesc) |
| 7946 | { |
| 7947 | if (strcmp (idesc->name, "rfi") == 0) |
| 7948 | return 1; |
| 7949 | return 0; |
| 7950 | } |
| 7951 | |
| 7952 | /* Returns the index of the given dependency in the opcode's list of chks, or |
| 7953 | -1 if there is no dependency. */ |
| 7954 | |
| 7955 | static int |
| 7956 | depends_on (int depind, struct ia64_opcode *idesc) |
| 7957 | { |
| 7958 | int i; |
| 7959 | const struct ia64_opcode_dependency *dep = idesc->dependencies; |
| 7960 | for (i = 0; i < dep->nchks; i++) |
| 7961 | { |
| 7962 | if (depind == DEP (dep->chks[i])) |
| 7963 | return i; |
| 7964 | } |
| 7965 | return -1; |
| 7966 | } |
| 7967 | |
| 7968 | /* Determine a set of specific resources used for a particular resource |
| 7969 | class. Returns the number of specific resources identified For those |
| 7970 | cases which are not determinable statically, the resource returned is |
| 7971 | marked nonspecific. |
| 7972 | |
| 7973 | Meanings of value in 'NOTE': |
| 7974 | 1) only read/write when the register number is explicitly encoded in the |
| 7975 | insn. |
| 7976 | 2) only read CFM when accessing a rotating GR, FR, or PR. mov pr only |
| 7977 | accesses CFM when qualifying predicate is in the rotating region. |
| 7978 | 3) general register value is used to specify an indirect register; not |
| 7979 | determinable statically. |
| 7980 | 4) only read the given resource when bits 7:0 of the indirect index |
| 7981 | register value does not match the register number of the resource; not |
| 7982 | determinable statically. |
| 7983 | 5) all rules are implementation specific. |
| 7984 | 6) only when both the index specified by the reader and the index specified |
| 7985 | by the writer have the same value in bits 63:61; not determinable |
| 7986 | statically. |
| 7987 | 7) only access the specified resource when the corresponding mask bit is |
| 7988 | set |
| 7989 | 8) PSR.dfh is only read when these insns reference FR32-127. PSR.dfl is |
| 7990 | only read when these insns reference FR2-31 |
| 7991 | 9) PSR.mfl is only written when these insns write FR2-31. PSR.mfh is only |
| 7992 | written when these insns write FR32-127 |
| 7993 | 10) The PSR.bn bit is only accessed when one of GR16-31 is specified in the |
| 7994 | instruction |
| 7995 | 11) The target predicates are written independently of PR[qp], but source |
| 7996 | registers are only read if PR[qp] is true. Since the state of PR[qp] |
| 7997 | cannot statically be determined, all source registers are marked used. |
| 7998 | 12) This insn only reads the specified predicate register when that |
| 7999 | register is the PR[qp]. |
| 8000 | 13) This reference to ld-c only applies to the GR whose value is loaded |
| 8001 | with data returned from memory, not the post-incremented address register. |
| 8002 | 14) The RSE resource includes the implementation-specific RSE internal |
| 8003 | state resources. At least one (and possibly more) of these resources are |
| 8004 | read by each instruction listed in IC:rse-readers. At least one (and |
| 8005 | possibly more) of these resources are written by each insn listed in |
| 8006 | IC:rse-writers. |
| 8007 | 15+16) Represents reserved instructions, which the assembler does not |
| 8008 | generate. |
| 8009 | 17) CR[TPR] has a RAW dependency only between mov-to-CR-TPR and |
| 8010 | mov-to-PSR-l or ssm instructions that set PSR.i, PSR.pp or PSR.up. |
| 8011 | |
| 8012 | Memory resources (i.e. locations in memory) are *not* marked or tracked by |
| 8013 | this code; there are no dependency violations based on memory access. |
| 8014 | */ |
| 8015 | |
| 8016 | #define MAX_SPECS 256 |
| 8017 | #define DV_CHK 1 |
| 8018 | #define DV_REG 0 |
| 8019 | |
| 8020 | static int |
| 8021 | specify_resource (const struct ia64_dependency *dep, |
| 8022 | struct ia64_opcode *idesc, |
| 8023 | /* is this a DV chk or a DV reg? */ |
| 8024 | int type, |
| 8025 | /* returned specific resources */ |
| 8026 | struct rsrc specs[MAX_SPECS], |
| 8027 | /* resource note for this insn's usage */ |
| 8028 | int note, |
| 8029 | /* which execution path to examine */ |
| 8030 | int path) |
| 8031 | { |
| 8032 | int count = 0; |
| 8033 | int i; |
| 8034 | int rsrc_write = 0; |
| 8035 | struct rsrc tmpl; |
| 8036 | |
| 8037 | if (dep->mode == IA64_DV_WAW |
| 8038 | || (dep->mode == IA64_DV_RAW && type == DV_REG) |
| 8039 | || (dep->mode == IA64_DV_WAR && type == DV_CHK)) |
| 8040 | rsrc_write = 1; |
| 8041 | |
| 8042 | /* template for any resources we identify */ |
| 8043 | tmpl.dependency = dep; |
| 8044 | tmpl.note = note; |
| 8045 | tmpl.insn_srlz = tmpl.data_srlz = 0; |
| 8046 | tmpl.qp_regno = CURR_SLOT.qp_regno; |
| 8047 | tmpl.link_to_qp_branch = 1; |
| 8048 | tmpl.mem_offset.hint = 0; |
| 8049 | tmpl.mem_offset.offset = 0; |
| 8050 | tmpl.mem_offset.base = 0; |
| 8051 | tmpl.specific = 1; |
| 8052 | tmpl.index = -1; |
| 8053 | tmpl.cmp_type = CMP_NONE; |
| 8054 | tmpl.depind = 0; |
| 8055 | tmpl.file = NULL; |
| 8056 | tmpl.line = 0; |
| 8057 | tmpl.path = 0; |
| 8058 | |
| 8059 | #define UNHANDLED \ |
| 8060 | as_warn (_("Unhandled dependency %s for %s (%s), note %d"), \ |
| 8061 | dep->name, idesc->name, (rsrc_write?"write":"read"), note) |
| 8062 | #define KNOWN(REG) (gr_values[REG].known && gr_values[REG].path >= path) |
| 8063 | |
| 8064 | /* we don't need to track these */ |
| 8065 | if (dep->semantics == IA64_DVS_NONE) |
| 8066 | return 0; |
| 8067 | |
| 8068 | switch (dep->specifier) |
| 8069 | { |
| 8070 | case IA64_RS_AR_K: |
| 8071 | if (note == 1) |
| 8072 | { |
| 8073 | if (idesc->operands[!rsrc_write] == IA64_OPND_AR3) |
| 8074 | { |
| 8075 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR; |
| 8076 | if (regno >= 0 && regno <= 7) |
| 8077 | { |
| 8078 | specs[count] = tmpl; |
| 8079 | specs[count++].index = regno; |
| 8080 | } |
| 8081 | } |
| 8082 | } |
| 8083 | else if (note == 0) |
| 8084 | { |
| 8085 | for (i = 0; i < 8; i++) |
| 8086 | { |
| 8087 | specs[count] = tmpl; |
| 8088 | specs[count++].index = i; |
| 8089 | } |
| 8090 | } |
| 8091 | else |
| 8092 | { |
| 8093 | UNHANDLED; |
| 8094 | } |
| 8095 | break; |
| 8096 | |
| 8097 | case IA64_RS_AR_UNAT: |
| 8098 | /* This is a mov =AR or mov AR= instruction. */ |
| 8099 | if (idesc->operands[!rsrc_write] == IA64_OPND_AR3) |
| 8100 | { |
| 8101 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR; |
| 8102 | if (regno == AR_UNAT) |
| 8103 | { |
| 8104 | specs[count++] = tmpl; |
| 8105 | } |
| 8106 | } |
| 8107 | else |
| 8108 | { |
| 8109 | /* This is a spill/fill, or other instruction that modifies the |
| 8110 | unat register. */ |
| 8111 | |
| 8112 | /* Unless we can determine the specific bits used, mark the whole |
| 8113 | thing; bits 8:3 of the memory address indicate the bit used in |
| 8114 | UNAT. The .mem.offset hint may be used to eliminate a small |
| 8115 | subset of conflicts. */ |
| 8116 | specs[count] = tmpl; |
| 8117 | if (md.mem_offset.hint) |
| 8118 | { |
| 8119 | if (md.debug_dv) |
| 8120 | fprintf (stderr, " Using hint for spill/fill\n"); |
| 8121 | /* The index isn't actually used, just set it to something |
| 8122 | approximating the bit index. */ |
| 8123 | specs[count].index = (md.mem_offset.offset >> 3) & 0x3F; |
| 8124 | specs[count].mem_offset.hint = 1; |
| 8125 | specs[count].mem_offset.offset = md.mem_offset.offset; |
| 8126 | specs[count++].mem_offset.base = md.mem_offset.base; |
| 8127 | } |
| 8128 | else |
| 8129 | { |
| 8130 | specs[count++].specific = 0; |
| 8131 | } |
| 8132 | } |
| 8133 | break; |
| 8134 | |
| 8135 | case IA64_RS_AR: |
| 8136 | if (note == 1) |
| 8137 | { |
| 8138 | if (idesc->operands[!rsrc_write] == IA64_OPND_AR3) |
| 8139 | { |
| 8140 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR; |
| 8141 | if ((regno >= 8 && regno <= 15) |
| 8142 | || (regno >= 20 && regno <= 23) |
| 8143 | || (regno >= 31 && regno <= 39) |
| 8144 | || (regno >= 41 && regno <= 47) |
| 8145 | || (regno >= 67 && regno <= 111)) |
| 8146 | { |
| 8147 | specs[count] = tmpl; |
| 8148 | specs[count++].index = regno; |
| 8149 | } |
| 8150 | } |
| 8151 | } |
| 8152 | else |
| 8153 | { |
| 8154 | UNHANDLED; |
| 8155 | } |
| 8156 | break; |
| 8157 | |
| 8158 | case IA64_RS_ARb: |
| 8159 | if (note == 1) |
| 8160 | { |
| 8161 | if (idesc->operands[!rsrc_write] == IA64_OPND_AR3) |
| 8162 | { |
| 8163 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR; |
| 8164 | if ((regno >= 48 && regno <= 63) |
| 8165 | || (regno >= 112 && regno <= 127)) |
| 8166 | { |
| 8167 | specs[count] = tmpl; |
| 8168 | specs[count++].index = regno; |
| 8169 | } |
| 8170 | } |
| 8171 | } |
| 8172 | else if (note == 0) |
| 8173 | { |
| 8174 | for (i = 48; i < 64; i++) |
| 8175 | { |
| 8176 | specs[count] = tmpl; |
| 8177 | specs[count++].index = i; |
| 8178 | } |
| 8179 | for (i = 112; i < 128; i++) |
| 8180 | { |
| 8181 | specs[count] = tmpl; |
| 8182 | specs[count++].index = i; |
| 8183 | } |
| 8184 | } |
| 8185 | else |
| 8186 | { |
| 8187 | UNHANDLED; |
| 8188 | } |
| 8189 | break; |
| 8190 | |
| 8191 | case IA64_RS_BR: |
| 8192 | if (note != 1) |
| 8193 | { |
| 8194 | UNHANDLED; |
| 8195 | } |
| 8196 | else |
| 8197 | { |
| 8198 | if (rsrc_write) |
| 8199 | { |
| 8200 | for (i = 0; i < idesc->num_outputs; i++) |
| 8201 | if (idesc->operands[i] == IA64_OPND_B1 |
| 8202 | || idesc->operands[i] == IA64_OPND_B2) |
| 8203 | { |
| 8204 | specs[count] = tmpl; |
| 8205 | specs[count++].index = |
| 8206 | CURR_SLOT.opnd[i].X_add_number - REG_BR; |
| 8207 | } |
| 8208 | } |
| 8209 | else |
| 8210 | { |
| 8211 | for (i = idesc->num_outputs; i < NELEMS (idesc->operands); i++) |
| 8212 | if (idesc->operands[i] == IA64_OPND_B1 |
| 8213 | || idesc->operands[i] == IA64_OPND_B2) |
| 8214 | { |
| 8215 | specs[count] = tmpl; |
| 8216 | specs[count++].index = |
| 8217 | CURR_SLOT.opnd[i].X_add_number - REG_BR; |
| 8218 | } |
| 8219 | } |
| 8220 | } |
| 8221 | break; |
| 8222 | |
| 8223 | case IA64_RS_CPUID: /* four or more registers */ |
| 8224 | if (note == 3) |
| 8225 | { |
| 8226 | if (idesc->operands[!rsrc_write] == IA64_OPND_CPUID_R3) |
| 8227 | { |
| 8228 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR; |
| 8229 | if (regno >= 0 && regno < NELEMS (gr_values) |
| 8230 | && KNOWN (regno)) |
| 8231 | { |
| 8232 | specs[count] = tmpl; |
| 8233 | specs[count++].index = gr_values[regno].value & 0xFF; |
| 8234 | } |
| 8235 | else |
| 8236 | { |
| 8237 | specs[count] = tmpl; |
| 8238 | specs[count++].specific = 0; |
| 8239 | } |
| 8240 | } |
| 8241 | } |
| 8242 | else |
| 8243 | { |
| 8244 | UNHANDLED; |
| 8245 | } |
| 8246 | break; |
| 8247 | |
| 8248 | case IA64_RS_DBR: /* four or more registers */ |
| 8249 | if (note == 3) |
| 8250 | { |
| 8251 | if (idesc->operands[!rsrc_write] == IA64_OPND_DBR_R3) |
| 8252 | { |
| 8253 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR; |
| 8254 | if (regno >= 0 && regno < NELEMS (gr_values) |
| 8255 | && KNOWN (regno)) |
| 8256 | { |
| 8257 | specs[count] = tmpl; |
| 8258 | specs[count++].index = gr_values[regno].value & 0xFF; |
| 8259 | } |
| 8260 | else |
| 8261 | { |
| 8262 | specs[count] = tmpl; |
| 8263 | specs[count++].specific = 0; |
| 8264 | } |
| 8265 | } |
| 8266 | } |
| 8267 | else if (note == 0 && !rsrc_write) |
| 8268 | { |
| 8269 | specs[count] = tmpl; |
| 8270 | specs[count++].specific = 0; |
| 8271 | } |
| 8272 | else |
| 8273 | { |
| 8274 | UNHANDLED; |
| 8275 | } |
| 8276 | break; |
| 8277 | |
| 8278 | case IA64_RS_IBR: /* four or more registers */ |
| 8279 | if (note == 3) |
| 8280 | { |
| 8281 | if (idesc->operands[!rsrc_write] == IA64_OPND_IBR_R3) |
| 8282 | { |
| 8283 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR; |
| 8284 | if (regno >= 0 && regno < NELEMS (gr_values) |
| 8285 | && KNOWN (regno)) |
| 8286 | { |
| 8287 | specs[count] = tmpl; |
| 8288 | specs[count++].index = gr_values[regno].value & 0xFF; |
| 8289 | } |
| 8290 | else |
| 8291 | { |
| 8292 | specs[count] = tmpl; |
| 8293 | specs[count++].specific = 0; |
| 8294 | } |
| 8295 | } |
| 8296 | } |
| 8297 | else |
| 8298 | { |
| 8299 | UNHANDLED; |
| 8300 | } |
| 8301 | break; |
| 8302 | |
| 8303 | case IA64_RS_MSR: |
| 8304 | if (note == 5) |
| 8305 | { |
| 8306 | /* These are implementation specific. Force all references to |
| 8307 | conflict with all other references. */ |
| 8308 | specs[count] = tmpl; |
| 8309 | specs[count++].specific = 0; |
| 8310 | } |
| 8311 | else |
| 8312 | { |
| 8313 | UNHANDLED; |
| 8314 | } |
| 8315 | break; |
| 8316 | |
| 8317 | case IA64_RS_PKR: /* 16 or more registers */ |
| 8318 | if (note == 3 || note == 4) |
| 8319 | { |
| 8320 | if (idesc->operands[!rsrc_write] == IA64_OPND_PKR_R3) |
| 8321 | { |
| 8322 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR; |
| 8323 | if (regno >= 0 && regno < NELEMS (gr_values) |
| 8324 | && KNOWN (regno)) |
| 8325 | { |
| 8326 | if (note == 3) |
| 8327 | { |
| 8328 | specs[count] = tmpl; |
| 8329 | specs[count++].index = gr_values[regno].value & 0xFF; |
| 8330 | } |
| 8331 | else |
| 8332 | for (i = 0; i < NELEMS (gr_values); i++) |
| 8333 | { |
| 8334 | /* Uses all registers *except* the one in R3. */ |
| 8335 | if ((unsigned)i != (gr_values[regno].value & 0xFF)) |
| 8336 | { |
| 8337 | specs[count] = tmpl; |
| 8338 | specs[count++].index = i; |
| 8339 | } |
| 8340 | } |
| 8341 | } |
| 8342 | else |
| 8343 | { |
| 8344 | specs[count] = tmpl; |
| 8345 | specs[count++].specific = 0; |
| 8346 | } |
| 8347 | } |
| 8348 | } |
| 8349 | else if (note == 0) |
| 8350 | { |
| 8351 | /* probe et al. */ |
| 8352 | specs[count] = tmpl; |
| 8353 | specs[count++].specific = 0; |
| 8354 | } |
| 8355 | break; |
| 8356 | |
| 8357 | case IA64_RS_PMC: /* four or more registers */ |
| 8358 | if (note == 3) |
| 8359 | { |
| 8360 | if (idesc->operands[!rsrc_write] == IA64_OPND_PMC_R3 |
| 8361 | || (!rsrc_write && idesc->operands[1] == IA64_OPND_PMD_R3)) |
| 8362 | |
| 8363 | { |
| 8364 | int reg_index = ((idesc->operands[1] == IA64_OPND_R3 && !rsrc_write) |
| 8365 | ? 1 : !rsrc_write); |
| 8366 | int regno = CURR_SLOT.opnd[reg_index].X_add_number - REG_GR; |
| 8367 | if (regno >= 0 && regno < NELEMS (gr_values) |
| 8368 | && KNOWN (regno)) |
| 8369 | { |
| 8370 | specs[count] = tmpl; |
| 8371 | specs[count++].index = gr_values[regno].value & 0xFF; |
| 8372 | } |
| 8373 | else |
| 8374 | { |
| 8375 | specs[count] = tmpl; |
| 8376 | specs[count++].specific = 0; |
| 8377 | } |
| 8378 | } |
| 8379 | } |
| 8380 | else |
| 8381 | { |
| 8382 | UNHANDLED; |
| 8383 | } |
| 8384 | break; |
| 8385 | |
| 8386 | case IA64_RS_PMD: /* four or more registers */ |
| 8387 | if (note == 3) |
| 8388 | { |
| 8389 | if (idesc->operands[!rsrc_write] == IA64_OPND_PMD_R3) |
| 8390 | { |
| 8391 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR; |
| 8392 | if (regno >= 0 && regno < NELEMS (gr_values) |
| 8393 | && KNOWN (regno)) |
| 8394 | { |
| 8395 | specs[count] = tmpl; |
| 8396 | specs[count++].index = gr_values[regno].value & 0xFF; |
| 8397 | } |
| 8398 | else |
| 8399 | { |
| 8400 | specs[count] = tmpl; |
| 8401 | specs[count++].specific = 0; |
| 8402 | } |
| 8403 | } |
| 8404 | } |
| 8405 | else |
| 8406 | { |
| 8407 | UNHANDLED; |
| 8408 | } |
| 8409 | break; |
| 8410 | |
| 8411 | case IA64_RS_RR: /* eight registers */ |
| 8412 | if (note == 6) |
| 8413 | { |
| 8414 | if (idesc->operands[!rsrc_write] == IA64_OPND_RR_R3) |
| 8415 | { |
| 8416 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_GR; |
| 8417 | if (regno >= 0 && regno < NELEMS (gr_values) |
| 8418 | && KNOWN (regno)) |
| 8419 | { |
| 8420 | specs[count] = tmpl; |
| 8421 | specs[count++].index = (gr_values[regno].value >> 61) & 0x7; |
| 8422 | } |
| 8423 | else |
| 8424 | { |
| 8425 | specs[count] = tmpl; |
| 8426 | specs[count++].specific = 0; |
| 8427 | } |
| 8428 | } |
| 8429 | } |
| 8430 | else if (note == 0 && !rsrc_write) |
| 8431 | { |
| 8432 | specs[count] = tmpl; |
| 8433 | specs[count++].specific = 0; |
| 8434 | } |
| 8435 | else |
| 8436 | { |
| 8437 | UNHANDLED; |
| 8438 | } |
| 8439 | break; |
| 8440 | |
| 8441 | case IA64_RS_CR_IRR: |
| 8442 | if (note == 0) |
| 8443 | { |
| 8444 | /* handle mov-from-CR-IVR; it's a read that writes CR[IRR] */ |
| 8445 | int regno = CURR_SLOT.opnd[1].X_add_number - REG_CR; |
| 8446 | if (rsrc_write |
| 8447 | && idesc->operands[1] == IA64_OPND_CR3 |
| 8448 | && regno == CR_IVR) |
| 8449 | { |
| 8450 | for (i = 0; i < 4; i++) |
| 8451 | { |
| 8452 | specs[count] = tmpl; |
| 8453 | specs[count++].index = CR_IRR0 + i; |
| 8454 | } |
| 8455 | } |
| 8456 | } |
| 8457 | else if (note == 1) |
| 8458 | { |
| 8459 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR; |
| 8460 | if (idesc->operands[!rsrc_write] == IA64_OPND_CR3 |
| 8461 | && regno >= CR_IRR0 |
| 8462 | && regno <= CR_IRR3) |
| 8463 | { |
| 8464 | specs[count] = tmpl; |
| 8465 | specs[count++].index = regno; |
| 8466 | } |
| 8467 | } |
| 8468 | else |
| 8469 | { |
| 8470 | UNHANDLED; |
| 8471 | } |
| 8472 | break; |
| 8473 | |
| 8474 | case IA64_RS_CR_IIB: |
| 8475 | if (note != 0) |
| 8476 | { |
| 8477 | UNHANDLED; |
| 8478 | } |
| 8479 | else |
| 8480 | { |
| 8481 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR; |
| 8482 | if (idesc->operands[!rsrc_write] == IA64_OPND_CR3 |
| 8483 | && (regno == CR_IIB0 || regno == CR_IIB1)) |
| 8484 | { |
| 8485 | specs[count] = tmpl; |
| 8486 | specs[count++].index = regno; |
| 8487 | } |
| 8488 | } |
| 8489 | break; |
| 8490 | |
| 8491 | case IA64_RS_CR_LRR: |
| 8492 | if (note != 1) |
| 8493 | { |
| 8494 | UNHANDLED; |
| 8495 | } |
| 8496 | else |
| 8497 | { |
| 8498 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR; |
| 8499 | if (idesc->operands[!rsrc_write] == IA64_OPND_CR3 |
| 8500 | && (regno == CR_LRR0 || regno == CR_LRR1)) |
| 8501 | { |
| 8502 | specs[count] = tmpl; |
| 8503 | specs[count++].index = regno; |
| 8504 | } |
| 8505 | } |
| 8506 | break; |
| 8507 | |
| 8508 | case IA64_RS_CR: |
| 8509 | if (note == 1) |
| 8510 | { |
| 8511 | if (idesc->operands[!rsrc_write] == IA64_OPND_CR3) |
| 8512 | { |
| 8513 | specs[count] = tmpl; |
| 8514 | specs[count++].index = |
| 8515 | CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR; |
| 8516 | } |
| 8517 | } |
| 8518 | else |
| 8519 | { |
| 8520 | UNHANDLED; |
| 8521 | } |
| 8522 | break; |
| 8523 | |
| 8524 | case IA64_RS_FR: |
| 8525 | case IA64_RS_FRb: |
| 8526 | if (note != 1) |
| 8527 | { |
| 8528 | UNHANDLED; |
| 8529 | } |
| 8530 | else if (rsrc_write) |
| 8531 | { |
| 8532 | if (dep->specifier == IA64_RS_FRb |
| 8533 | && idesc->operands[0] == IA64_OPND_F1) |
| 8534 | { |
| 8535 | specs[count] = tmpl; |
| 8536 | specs[count++].index = CURR_SLOT.opnd[0].X_add_number - REG_FR; |
| 8537 | } |
| 8538 | } |
| 8539 | else |
| 8540 | { |
| 8541 | for (i = idesc->num_outputs; i < NELEMS (idesc->operands); i++) |
| 8542 | { |
| 8543 | if (idesc->operands[i] == IA64_OPND_F2 |
| 8544 | || idesc->operands[i] == IA64_OPND_F3 |
| 8545 | || idesc->operands[i] == IA64_OPND_F4) |
| 8546 | { |
| 8547 | specs[count] = tmpl; |
| 8548 | specs[count++].index = |
| 8549 | CURR_SLOT.opnd[i].X_add_number - REG_FR; |
| 8550 | } |
| 8551 | } |
| 8552 | } |
| 8553 | break; |
| 8554 | |
| 8555 | case IA64_RS_GR: |
| 8556 | if (note == 13) |
| 8557 | { |
| 8558 | /* This reference applies only to the GR whose value is loaded with |
| 8559 | data returned from memory. */ |
| 8560 | specs[count] = tmpl; |
| 8561 | specs[count++].index = CURR_SLOT.opnd[0].X_add_number - REG_GR; |
| 8562 | } |
| 8563 | else if (note == 1) |
| 8564 | { |
| 8565 | if (rsrc_write) |
| 8566 | { |
| 8567 | for (i = 0; i < idesc->num_outputs; i++) |
| 8568 | if (idesc->operands[i] == IA64_OPND_R1 |
| 8569 | || idesc->operands[i] == IA64_OPND_R2 |
| 8570 | || idesc->operands[i] == IA64_OPND_R3) |
| 8571 | { |
| 8572 | specs[count] = tmpl; |
| 8573 | specs[count++].index = |
| 8574 | CURR_SLOT.opnd[i].X_add_number - REG_GR; |
| 8575 | } |
| 8576 | if (idesc->flags & IA64_OPCODE_POSTINC) |
| 8577 | for (i = 0; i < NELEMS (idesc->operands); i++) |
| 8578 | if (idesc->operands[i] == IA64_OPND_MR3) |
| 8579 | { |
| 8580 | specs[count] = tmpl; |
| 8581 | specs[count++].index = |
| 8582 | CURR_SLOT.opnd[i].X_add_number - REG_GR; |
| 8583 | } |
| 8584 | } |
| 8585 | else |
| 8586 | { |
| 8587 | /* Look for anything that reads a GR. */ |
| 8588 | for (i = 0; i < NELEMS (idesc->operands); i++) |
| 8589 | { |
| 8590 | if (idesc->operands[i] == IA64_OPND_MR3 |
| 8591 | || idesc->operands[i] == IA64_OPND_CPUID_R3 |
| 8592 | || idesc->operands[i] == IA64_OPND_DBR_R3 |
| 8593 | || idesc->operands[i] == IA64_OPND_IBR_R3 |
| 8594 | || idesc->operands[i] == IA64_OPND_MSR_R3 |
| 8595 | || idesc->operands[i] == IA64_OPND_PKR_R3 |
| 8596 | || idesc->operands[i] == IA64_OPND_PMC_R3 |
| 8597 | || idesc->operands[i] == IA64_OPND_PMD_R3 |
| 8598 | || idesc->operands[i] == IA64_OPND_RR_R3 |
| 8599 | || ((i >= idesc->num_outputs) |
| 8600 | && (idesc->operands[i] == IA64_OPND_R1 |
| 8601 | || idesc->operands[i] == IA64_OPND_R2 |
| 8602 | || idesc->operands[i] == IA64_OPND_R3 |
| 8603 | /* addl source register. */ |
| 8604 | || idesc->operands[i] == IA64_OPND_R3_2))) |
| 8605 | { |
| 8606 | specs[count] = tmpl; |
| 8607 | specs[count++].index = |
| 8608 | CURR_SLOT.opnd[i].X_add_number - REG_GR; |
| 8609 | } |
| 8610 | } |
| 8611 | } |
| 8612 | } |
| 8613 | else |
| 8614 | { |
| 8615 | UNHANDLED; |
| 8616 | } |
| 8617 | break; |
| 8618 | |
| 8619 | /* This is the same as IA64_RS_PRr, except that the register range is |
| 8620 | from 1 - 15, and there are no rotating register reads/writes here. */ |
| 8621 | case IA64_RS_PR: |
| 8622 | if (note == 0) |
| 8623 | { |
| 8624 | for (i = 1; i < 16; i++) |
| 8625 | { |
| 8626 | specs[count] = tmpl; |
| 8627 | specs[count++].index = i; |
| 8628 | } |
| 8629 | } |
| 8630 | else if (note == 7) |
| 8631 | { |
| 8632 | valueT mask = 0; |
| 8633 | /* Mark only those registers indicated by the mask. */ |
| 8634 | if (rsrc_write) |
| 8635 | { |
| 8636 | mask = CURR_SLOT.opnd[2].X_add_number; |
| 8637 | for (i = 1; i < 16; i++) |
| 8638 | if (mask & ((valueT) 1 << i)) |
| 8639 | { |
| 8640 | specs[count] = tmpl; |
| 8641 | specs[count++].index = i; |
| 8642 | } |
| 8643 | } |
| 8644 | else |
| 8645 | { |
| 8646 | UNHANDLED; |
| 8647 | } |
| 8648 | } |
| 8649 | else if (note == 11) /* note 11 implies note 1 as well */ |
| 8650 | { |
| 8651 | if (rsrc_write) |
| 8652 | { |
| 8653 | for (i = 0; i < idesc->num_outputs; i++) |
| 8654 | { |
| 8655 | if (idesc->operands[i] == IA64_OPND_P1 |
| 8656 | || idesc->operands[i] == IA64_OPND_P2) |
| 8657 | { |
| 8658 | int regno = CURR_SLOT.opnd[i].X_add_number - REG_P; |
| 8659 | if (regno >= 1 && regno < 16) |
| 8660 | { |
| 8661 | specs[count] = tmpl; |
| 8662 | specs[count++].index = regno; |
| 8663 | } |
| 8664 | } |
| 8665 | } |
| 8666 | } |
| 8667 | else |
| 8668 | { |
| 8669 | UNHANDLED; |
| 8670 | } |
| 8671 | } |
| 8672 | else if (note == 12) |
| 8673 | { |
| 8674 | if (CURR_SLOT.qp_regno >= 1 && CURR_SLOT.qp_regno < 16) |
| 8675 | { |
| 8676 | specs[count] = tmpl; |
| 8677 | specs[count++].index = CURR_SLOT.qp_regno; |
| 8678 | } |
| 8679 | } |
| 8680 | else if (note == 1) |
| 8681 | { |
| 8682 | if (rsrc_write) |
| 8683 | { |
| 8684 | int p1 = CURR_SLOT.opnd[0].X_add_number - REG_P; |
| 8685 | int p2 = CURR_SLOT.opnd[1].X_add_number - REG_P; |
| 8686 | int or_andcm = strstr (idesc->name, "or.andcm") != NULL; |
| 8687 | int and_orcm = strstr (idesc->name, "and.orcm") != NULL; |
| 8688 | |
| 8689 | if ((idesc->operands[0] == IA64_OPND_P1 |
| 8690 | || idesc->operands[0] == IA64_OPND_P2) |
| 8691 | && p1 >= 1 && p1 < 16) |
| 8692 | { |
| 8693 | specs[count] = tmpl; |
| 8694 | specs[count].cmp_type = |
| 8695 | (or_andcm ? CMP_OR : (and_orcm ? CMP_AND : CMP_NONE)); |
| 8696 | specs[count++].index = p1; |
| 8697 | } |
| 8698 | if ((idesc->operands[1] == IA64_OPND_P1 |
| 8699 | || idesc->operands[1] == IA64_OPND_P2) |
| 8700 | && p2 >= 1 && p2 < 16) |
| 8701 | { |
| 8702 | specs[count] = tmpl; |
| 8703 | specs[count].cmp_type = |
| 8704 | (or_andcm ? CMP_AND : (and_orcm ? CMP_OR : CMP_NONE)); |
| 8705 | specs[count++].index = p2; |
| 8706 | } |
| 8707 | } |
| 8708 | else |
| 8709 | { |
| 8710 | if (CURR_SLOT.qp_regno >= 1 && CURR_SLOT.qp_regno < 16) |
| 8711 | { |
| 8712 | specs[count] = tmpl; |
| 8713 | specs[count++].index = CURR_SLOT.qp_regno; |
| 8714 | } |
| 8715 | if (idesc->operands[1] == IA64_OPND_PR) |
| 8716 | { |
| 8717 | for (i = 1; i < 16; i++) |
| 8718 | { |
| 8719 | specs[count] = tmpl; |
| 8720 | specs[count++].index = i; |
| 8721 | } |
| 8722 | } |
| 8723 | } |
| 8724 | } |
| 8725 | else |
| 8726 | { |
| 8727 | UNHANDLED; |
| 8728 | } |
| 8729 | break; |
| 8730 | |
| 8731 | /* This is the general case for PRs. IA64_RS_PR and IA64_RS_PR63 are |
| 8732 | simplified cases of this. */ |
| 8733 | case IA64_RS_PRr: |
| 8734 | if (note == 0) |
| 8735 | { |
| 8736 | for (i = 16; i < 63; i++) |
| 8737 | { |
| 8738 | specs[count] = tmpl; |
| 8739 | specs[count++].index = i; |
| 8740 | } |
| 8741 | } |
| 8742 | else if (note == 7) |
| 8743 | { |
| 8744 | valueT mask = 0; |
| 8745 | /* Mark only those registers indicated by the mask. */ |
| 8746 | if (rsrc_write |
| 8747 | && idesc->operands[0] == IA64_OPND_PR) |
| 8748 | { |
| 8749 | mask = CURR_SLOT.opnd[2].X_add_number; |
| 8750 | if (mask & ((valueT) 1 << 16)) |
| 8751 | for (i = 16; i < 63; i++) |
| 8752 | { |
| 8753 | specs[count] = tmpl; |
| 8754 | specs[count++].index = i; |
| 8755 | } |
| 8756 | } |
| 8757 | else if (rsrc_write |
| 8758 | && idesc->operands[0] == IA64_OPND_PR_ROT) |
| 8759 | { |
| 8760 | for (i = 16; i < 63; i++) |
| 8761 | { |
| 8762 | specs[count] = tmpl; |
| 8763 | specs[count++].index = i; |
| 8764 | } |
| 8765 | } |
| 8766 | else |
| 8767 | { |
| 8768 | UNHANDLED; |
| 8769 | } |
| 8770 | } |
| 8771 | else if (note == 11) /* note 11 implies note 1 as well */ |
| 8772 | { |
| 8773 | if (rsrc_write) |
| 8774 | { |
| 8775 | for (i = 0; i < idesc->num_outputs; i++) |
| 8776 | { |
| 8777 | if (idesc->operands[i] == IA64_OPND_P1 |
| 8778 | || idesc->operands[i] == IA64_OPND_P2) |
| 8779 | { |
| 8780 | int regno = CURR_SLOT.opnd[i].X_add_number - REG_P; |
| 8781 | if (regno >= 16 && regno < 63) |
| 8782 | { |
| 8783 | specs[count] = tmpl; |
| 8784 | specs[count++].index = regno; |
| 8785 | } |
| 8786 | } |
| 8787 | } |
| 8788 | } |
| 8789 | else |
| 8790 | { |
| 8791 | UNHANDLED; |
| 8792 | } |
| 8793 | } |
| 8794 | else if (note == 12) |
| 8795 | { |
| 8796 | if (CURR_SLOT.qp_regno >= 16 && CURR_SLOT.qp_regno < 63) |
| 8797 | { |
| 8798 | specs[count] = tmpl; |
| 8799 | specs[count++].index = CURR_SLOT.qp_regno; |
| 8800 | } |
| 8801 | } |
| 8802 | else if (note == 1) |
| 8803 | { |
| 8804 | if (rsrc_write) |
| 8805 | { |
| 8806 | int p1 = CURR_SLOT.opnd[0].X_add_number - REG_P; |
| 8807 | int p2 = CURR_SLOT.opnd[1].X_add_number - REG_P; |
| 8808 | int or_andcm = strstr (idesc->name, "or.andcm") != NULL; |
| 8809 | int and_orcm = strstr (idesc->name, "and.orcm") != NULL; |
| 8810 | |
| 8811 | if ((idesc->operands[0] == IA64_OPND_P1 |
| 8812 | || idesc->operands[0] == IA64_OPND_P2) |
| 8813 | && p1 >= 16 && p1 < 63) |
| 8814 | { |
| 8815 | specs[count] = tmpl; |
| 8816 | specs[count].cmp_type = |
| 8817 | (or_andcm ? CMP_OR : (and_orcm ? CMP_AND : CMP_NONE)); |
| 8818 | specs[count++].index = p1; |
| 8819 | } |
| 8820 | if ((idesc->operands[1] == IA64_OPND_P1 |
| 8821 | || idesc->operands[1] == IA64_OPND_P2) |
| 8822 | && p2 >= 16 && p2 < 63) |
| 8823 | { |
| 8824 | specs[count] = tmpl; |
| 8825 | specs[count].cmp_type = |
| 8826 | (or_andcm ? CMP_AND : (and_orcm ? CMP_OR : CMP_NONE)); |
| 8827 | specs[count++].index = p2; |
| 8828 | } |
| 8829 | } |
| 8830 | else |
| 8831 | { |
| 8832 | if (CURR_SLOT.qp_regno >= 16 && CURR_SLOT.qp_regno < 63) |
| 8833 | { |
| 8834 | specs[count] = tmpl; |
| 8835 | specs[count++].index = CURR_SLOT.qp_regno; |
| 8836 | } |
| 8837 | if (idesc->operands[1] == IA64_OPND_PR) |
| 8838 | { |
| 8839 | for (i = 16; i < 63; i++) |
| 8840 | { |
| 8841 | specs[count] = tmpl; |
| 8842 | specs[count++].index = i; |
| 8843 | } |
| 8844 | } |
| 8845 | } |
| 8846 | } |
| 8847 | else |
| 8848 | { |
| 8849 | UNHANDLED; |
| 8850 | } |
| 8851 | break; |
| 8852 | |
| 8853 | case IA64_RS_PSR: |
| 8854 | /* Verify that the instruction is using the PSR bit indicated in |
| 8855 | dep->regindex. */ |
| 8856 | if (note == 0) |
| 8857 | { |
| 8858 | if (idesc->operands[!rsrc_write] == IA64_OPND_PSR_UM) |
| 8859 | { |
| 8860 | if (dep->regindex < 6) |
| 8861 | { |
| 8862 | specs[count++] = tmpl; |
| 8863 | } |
| 8864 | } |
| 8865 | else if (idesc->operands[!rsrc_write] == IA64_OPND_PSR) |
| 8866 | { |
| 8867 | if (dep->regindex < 32 |
| 8868 | || dep->regindex == 35 |
| 8869 | || dep->regindex == 36 |
| 8870 | || (!rsrc_write && dep->regindex == PSR_CPL)) |
| 8871 | { |
| 8872 | specs[count++] = tmpl; |
| 8873 | } |
| 8874 | } |
| 8875 | else if (idesc->operands[!rsrc_write] == IA64_OPND_PSR_L) |
| 8876 | { |
| 8877 | if (dep->regindex < 32 |
| 8878 | || dep->regindex == 35 |
| 8879 | || dep->regindex == 36 |
| 8880 | || (rsrc_write && dep->regindex == PSR_CPL)) |
| 8881 | { |
| 8882 | specs[count++] = tmpl; |
| 8883 | } |
| 8884 | } |
| 8885 | else |
| 8886 | { |
| 8887 | /* Several PSR bits have very specific dependencies. */ |
| 8888 | switch (dep->regindex) |
| 8889 | { |
| 8890 | default: |
| 8891 | specs[count++] = tmpl; |
| 8892 | break; |
| 8893 | case PSR_IC: |
| 8894 | if (rsrc_write) |
| 8895 | { |
| 8896 | specs[count++] = tmpl; |
| 8897 | } |
| 8898 | else |
| 8899 | { |
| 8900 | /* Only certain CR accesses use PSR.ic */ |
| 8901 | if (idesc->operands[0] == IA64_OPND_CR3 |
| 8902 | || idesc->operands[1] == IA64_OPND_CR3) |
| 8903 | { |
| 8904 | int reg_index = |
| 8905 | ((idesc->operands[0] == IA64_OPND_CR3) |
| 8906 | ? 0 : 1); |
| 8907 | int regno = |
| 8908 | CURR_SLOT.opnd[reg_index].X_add_number - REG_CR; |
| 8909 | |
| 8910 | switch (regno) |
| 8911 | { |
| 8912 | default: |
| 8913 | break; |
| 8914 | case CR_ITIR: |
| 8915 | case CR_IFS: |
| 8916 | case CR_IIM: |
| 8917 | case CR_IIP: |
| 8918 | case CR_IPSR: |
| 8919 | case CR_ISR: |
| 8920 | case CR_IFA: |
| 8921 | case CR_IHA: |
| 8922 | case CR_IIB0: |
| 8923 | case CR_IIB1: |
| 8924 | case CR_IIPA: |
| 8925 | specs[count++] = tmpl; |
| 8926 | break; |
| 8927 | } |
| 8928 | } |
| 8929 | } |
| 8930 | break; |
| 8931 | case PSR_CPL: |
| 8932 | if (rsrc_write) |
| 8933 | { |
| 8934 | specs[count++] = tmpl; |
| 8935 | } |
| 8936 | else |
| 8937 | { |
| 8938 | /* Only some AR accesses use cpl */ |
| 8939 | if (idesc->operands[0] == IA64_OPND_AR3 |
| 8940 | || idesc->operands[1] == IA64_OPND_AR3) |
| 8941 | { |
| 8942 | int reg_index = |
| 8943 | ((idesc->operands[0] == IA64_OPND_AR3) |
| 8944 | ? 0 : 1); |
| 8945 | int regno = |
| 8946 | CURR_SLOT.opnd[reg_index].X_add_number - REG_AR; |
| 8947 | |
| 8948 | if (regno == AR_ITC |
| 8949 | || regno == AR_RUC |
| 8950 | || (reg_index == 0 |
| 8951 | && (regno == AR_RSC |
| 8952 | || (regno >= AR_K0 |
| 8953 | && regno <= AR_K7)))) |
| 8954 | { |
| 8955 | specs[count++] = tmpl; |
| 8956 | } |
| 8957 | } |
| 8958 | else |
| 8959 | { |
| 8960 | specs[count++] = tmpl; |
| 8961 | } |
| 8962 | break; |
| 8963 | } |
| 8964 | } |
| 8965 | } |
| 8966 | } |
| 8967 | else if (note == 7) |
| 8968 | { |
| 8969 | valueT mask = 0; |
| 8970 | if (idesc->operands[0] == IA64_OPND_IMMU24) |
| 8971 | { |
| 8972 | mask = CURR_SLOT.opnd[0].X_add_number; |
| 8973 | } |
| 8974 | else |
| 8975 | { |
| 8976 | UNHANDLED; |
| 8977 | } |
| 8978 | if (mask & ((valueT) 1 << dep->regindex)) |
| 8979 | { |
| 8980 | specs[count++] = tmpl; |
| 8981 | } |
| 8982 | } |
| 8983 | else if (note == 8) |
| 8984 | { |
| 8985 | int min = dep->regindex == PSR_DFL ? 2 : 32; |
| 8986 | int max = dep->regindex == PSR_DFL ? 31 : 127; |
| 8987 | /* dfh is read on FR32-127; dfl is read on FR2-31 */ |
| 8988 | for (i = 0; i < NELEMS (idesc->operands); i++) |
| 8989 | { |
| 8990 | if (idesc->operands[i] == IA64_OPND_F1 |
| 8991 | || idesc->operands[i] == IA64_OPND_F2 |
| 8992 | || idesc->operands[i] == IA64_OPND_F3 |
| 8993 | || idesc->operands[i] == IA64_OPND_F4) |
| 8994 | { |
| 8995 | int reg = CURR_SLOT.opnd[i].X_add_number - REG_FR; |
| 8996 | if (reg >= min && reg <= max) |
| 8997 | { |
| 8998 | specs[count++] = tmpl; |
| 8999 | } |
| 9000 | } |
| 9001 | } |
| 9002 | } |
| 9003 | else if (note == 9) |
| 9004 | { |
| 9005 | int min = dep->regindex == PSR_MFL ? 2 : 32; |
| 9006 | int max = dep->regindex == PSR_MFL ? 31 : 127; |
| 9007 | /* mfh is read on writes to FR32-127; mfl is read on writes to |
| 9008 | FR2-31 */ |
| 9009 | for (i = 0; i < idesc->num_outputs; i++) |
| 9010 | { |
| 9011 | if (idesc->operands[i] == IA64_OPND_F1) |
| 9012 | { |
| 9013 | int reg = CURR_SLOT.opnd[i].X_add_number - REG_FR; |
| 9014 | if (reg >= min && reg <= max) |
| 9015 | { |
| 9016 | specs[count++] = tmpl; |
| 9017 | } |
| 9018 | } |
| 9019 | } |
| 9020 | } |
| 9021 | else if (note == 10) |
| 9022 | { |
| 9023 | for (i = 0; i < NELEMS (idesc->operands); i++) |
| 9024 | { |
| 9025 | if (idesc->operands[i] == IA64_OPND_R1 |
| 9026 | || idesc->operands[i] == IA64_OPND_R2 |
| 9027 | || idesc->operands[i] == IA64_OPND_R3) |
| 9028 | { |
| 9029 | int regno = CURR_SLOT.opnd[i].X_add_number - REG_GR; |
| 9030 | if (regno >= 16 && regno <= 31) |
| 9031 | { |
| 9032 | specs[count++] = tmpl; |
| 9033 | } |
| 9034 | } |
| 9035 | } |
| 9036 | } |
| 9037 | else |
| 9038 | { |
| 9039 | UNHANDLED; |
| 9040 | } |
| 9041 | break; |
| 9042 | |
| 9043 | case IA64_RS_AR_FPSR: |
| 9044 | if (idesc->operands[!rsrc_write] == IA64_OPND_AR3) |
| 9045 | { |
| 9046 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR; |
| 9047 | if (regno == AR_FPSR) |
| 9048 | { |
| 9049 | specs[count++] = tmpl; |
| 9050 | } |
| 9051 | } |
| 9052 | else |
| 9053 | { |
| 9054 | specs[count++] = tmpl; |
| 9055 | } |
| 9056 | break; |
| 9057 | |
| 9058 | case IA64_RS_ARX: |
| 9059 | /* Handle all AR[REG] resources */ |
| 9060 | if (note == 0 || note == 1) |
| 9061 | { |
| 9062 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_AR; |
| 9063 | if (idesc->operands[!rsrc_write] == IA64_OPND_AR3 |
| 9064 | && regno == dep->regindex) |
| 9065 | { |
| 9066 | specs[count++] = tmpl; |
| 9067 | } |
| 9068 | /* other AR[REG] resources may be affected by AR accesses */ |
| 9069 | else if (idesc->operands[0] == IA64_OPND_AR3) |
| 9070 | { |
| 9071 | /* AR[] writes */ |
| 9072 | regno = CURR_SLOT.opnd[0].X_add_number - REG_AR; |
| 9073 | switch (dep->regindex) |
| 9074 | { |
| 9075 | default: |
| 9076 | break; |
| 9077 | case AR_BSP: |
| 9078 | case AR_RNAT: |
| 9079 | if (regno == AR_BSPSTORE) |
| 9080 | { |
| 9081 | specs[count++] = tmpl; |
| 9082 | } |
| 9083 | case AR_RSC: |
| 9084 | if (!rsrc_write && |
| 9085 | (regno == AR_BSPSTORE |
| 9086 | || regno == AR_RNAT)) |
| 9087 | { |
| 9088 | specs[count++] = tmpl; |
| 9089 | } |
| 9090 | break; |
| 9091 | } |
| 9092 | } |
| 9093 | else if (idesc->operands[1] == IA64_OPND_AR3) |
| 9094 | { |
| 9095 | /* AR[] reads */ |
| 9096 | regno = CURR_SLOT.opnd[1].X_add_number - REG_AR; |
| 9097 | switch (dep->regindex) |
| 9098 | { |
| 9099 | default: |
| 9100 | break; |
| 9101 | case AR_RSC: |
| 9102 | if (regno == AR_BSPSTORE || regno == AR_RNAT) |
| 9103 | { |
| 9104 | specs[count++] = tmpl; |
| 9105 | } |
| 9106 | break; |
| 9107 | } |
| 9108 | } |
| 9109 | else |
| 9110 | { |
| 9111 | specs[count++] = tmpl; |
| 9112 | } |
| 9113 | } |
| 9114 | else |
| 9115 | { |
| 9116 | UNHANDLED; |
| 9117 | } |
| 9118 | break; |
| 9119 | |
| 9120 | case IA64_RS_CRX: |
| 9121 | /* Handle all CR[REG] resources. |
| 9122 | ??? FIXME: The rule 17 isn't really handled correctly. */ |
| 9123 | if (note == 0 || note == 1 || note == 17) |
| 9124 | { |
| 9125 | if (idesc->operands[!rsrc_write] == IA64_OPND_CR3) |
| 9126 | { |
| 9127 | int regno = CURR_SLOT.opnd[!rsrc_write].X_add_number - REG_CR; |
| 9128 | if (regno == dep->regindex) |
| 9129 | { |
| 9130 | specs[count++] = tmpl; |
| 9131 | } |
| 9132 | else if (!rsrc_write) |
| 9133 | { |
| 9134 | /* Reads from CR[IVR] affect other resources. */ |
| 9135 | if (regno == CR_IVR) |
| 9136 | { |
| 9137 | if ((dep->regindex >= CR_IRR0 |
| 9138 | && dep->regindex <= CR_IRR3) |
| 9139 | || dep->regindex == CR_TPR) |
| 9140 | { |
| 9141 | specs[count++] = tmpl; |
| 9142 | } |
| 9143 | } |
| 9144 | } |
| 9145 | } |
| 9146 | else |
| 9147 | { |
| 9148 | specs[count++] = tmpl; |
| 9149 | } |
| 9150 | } |
| 9151 | else |
| 9152 | { |
| 9153 | UNHANDLED; |
| 9154 | } |
| 9155 | break; |
| 9156 | |
| 9157 | case IA64_RS_INSERVICE: |
| 9158 | /* look for write of EOI (67) or read of IVR (65) */ |
| 9159 | if ((idesc->operands[0] == IA64_OPND_CR3 |
| 9160 | && CURR_SLOT.opnd[0].X_add_number - REG_CR == CR_EOI) |
| 9161 | || (idesc->operands[1] == IA64_OPND_CR3 |
| 9162 | && CURR_SLOT.opnd[1].X_add_number - REG_CR == CR_IVR)) |
| 9163 | { |
| 9164 | specs[count++] = tmpl; |
| 9165 | } |
| 9166 | break; |
| 9167 | |
| 9168 | case IA64_RS_GR0: |
| 9169 | if (note == 1) |
| 9170 | { |
| 9171 | specs[count++] = tmpl; |
| 9172 | } |
| 9173 | else |
| 9174 | { |
| 9175 | UNHANDLED; |
| 9176 | } |
| 9177 | break; |
| 9178 | |
| 9179 | case IA64_RS_CFM: |
| 9180 | if (note != 2) |
| 9181 | { |
| 9182 | specs[count++] = tmpl; |
| 9183 | } |
| 9184 | else |
| 9185 | { |
| 9186 | /* Check if any of the registers accessed are in the rotating region. |
| 9187 | mov to/from pr accesses CFM only when qp_regno is in the rotating |
| 9188 | region */ |
| 9189 | for (i = 0; i < NELEMS (idesc->operands); i++) |
| 9190 | { |
| 9191 | if (idesc->operands[i] == IA64_OPND_R1 |
| 9192 | || idesc->operands[i] == IA64_OPND_R2 |
| 9193 | || idesc->operands[i] == IA64_OPND_R3) |
| 9194 | { |
| 9195 | int num = CURR_SLOT.opnd[i].X_add_number - REG_GR; |
| 9196 | /* Assumes that md.rot.num_regs is always valid */ |
| 9197 | if (md.rot.num_regs > 0 |
| 9198 | && num > 31 |
| 9199 | && num < 31 + md.rot.num_regs) |
| 9200 | { |
| 9201 | specs[count] = tmpl; |
| 9202 | specs[count++].specific = 0; |
| 9203 | } |
| 9204 | } |
| 9205 | else if (idesc->operands[i] == IA64_OPND_F1 |
| 9206 | || idesc->operands[i] == IA64_OPND_F2 |
| 9207 | || idesc->operands[i] == IA64_OPND_F3 |
| 9208 | || idesc->operands[i] == IA64_OPND_F4) |
| 9209 | { |
| 9210 | int num = CURR_SLOT.opnd[i].X_add_number - REG_FR; |
| 9211 | if (num > 31) |
| 9212 | { |
| 9213 | specs[count] = tmpl; |
| 9214 | specs[count++].specific = 0; |
| 9215 | } |
| 9216 | } |
| 9217 | else if (idesc->operands[i] == IA64_OPND_P1 |
| 9218 | || idesc->operands[i] == IA64_OPND_P2) |
| 9219 | { |
| 9220 | int num = CURR_SLOT.opnd[i].X_add_number - REG_P; |
| 9221 | if (num > 15) |
| 9222 | { |
| 9223 | specs[count] = tmpl; |
| 9224 | specs[count++].specific = 0; |
| 9225 | } |
| 9226 | } |
| 9227 | } |
| 9228 | if (CURR_SLOT.qp_regno > 15) |
| 9229 | { |
| 9230 | specs[count] = tmpl; |
| 9231 | specs[count++].specific = 0; |
| 9232 | } |
| 9233 | } |
| 9234 | break; |
| 9235 | |
| 9236 | /* This is the same as IA64_RS_PRr, except simplified to account for |
| 9237 | the fact that there is only one register. */ |
| 9238 | case IA64_RS_PR63: |
| 9239 | if (note == 0) |
| 9240 | { |
| 9241 | specs[count++] = tmpl; |
| 9242 | } |
| 9243 | else if (note == 7) |
| 9244 | { |
| 9245 | valueT mask = 0; |
| 9246 | if (idesc->operands[2] == IA64_OPND_IMM17) |
| 9247 | mask = CURR_SLOT.opnd[2].X_add_number; |
| 9248 | if (mask & ((valueT) 1 << 63)) |
| 9249 | specs[count++] = tmpl; |
| 9250 | } |
| 9251 | else if (note == 11) |
| 9252 | { |
| 9253 | if ((idesc->operands[0] == IA64_OPND_P1 |
| 9254 | && CURR_SLOT.opnd[0].X_add_number - REG_P == 63) |
| 9255 | || (idesc->operands[1] == IA64_OPND_P2 |
| 9256 | && CURR_SLOT.opnd[1].X_add_number - REG_P == 63)) |
| 9257 | { |
| 9258 | specs[count++] = tmpl; |
| 9259 | } |
| 9260 | } |
| 9261 | else if (note == 12) |
| 9262 | { |
| 9263 | if (CURR_SLOT.qp_regno == 63) |
| 9264 | { |
| 9265 | specs[count++] = tmpl; |
| 9266 | } |
| 9267 | } |
| 9268 | else if (note == 1) |
| 9269 | { |
| 9270 | if (rsrc_write) |
| 9271 | { |
| 9272 | int p1 = CURR_SLOT.opnd[0].X_add_number - REG_P; |
| 9273 | int p2 = CURR_SLOT.opnd[1].X_add_number - REG_P; |
| 9274 | int or_andcm = strstr (idesc->name, "or.andcm") != NULL; |
| 9275 | int and_orcm = strstr (idesc->name, "and.orcm") != NULL; |
| 9276 | |
| 9277 | if (p1 == 63 |
| 9278 | && (idesc->operands[0] == IA64_OPND_P1 |
| 9279 | || idesc->operands[0] == IA64_OPND_P2)) |
| 9280 | { |
| 9281 | specs[count] = tmpl; |
| 9282 | specs[count++].cmp_type = |
| 9283 | (or_andcm ? CMP_OR : (and_orcm ? CMP_AND : CMP_NONE)); |
| 9284 | } |
| 9285 | if (p2 == 63 |
| 9286 | && (idesc->operands[1] == IA64_OPND_P1 |
| 9287 | || idesc->operands[1] == IA64_OPND_P2)) |
| 9288 | { |
| 9289 | specs[count] = tmpl; |
| 9290 | specs[count++].cmp_type = |
| 9291 | (or_andcm ? CMP_AND : (and_orcm ? CMP_OR : CMP_NONE)); |
| 9292 | } |
| 9293 | } |
| 9294 | else |
| 9295 | { |
| 9296 | if (CURR_SLOT.qp_regno == 63) |
| 9297 | { |
| 9298 | specs[count++] = tmpl; |
| 9299 | } |
| 9300 | } |
| 9301 | } |
| 9302 | else |
| 9303 | { |
| 9304 | UNHANDLED; |
| 9305 | } |
| 9306 | break; |
| 9307 | |
| 9308 | case IA64_RS_RSE: |
| 9309 | /* FIXME we can identify some individual RSE written resources, but RSE |
| 9310 | read resources have not yet been completely identified, so for now |
| 9311 | treat RSE as a single resource */ |
| 9312 | if (strncmp (idesc->name, "mov", 3) == 0) |
| 9313 | { |
| 9314 | if (rsrc_write) |
| 9315 | { |
| 9316 | if (idesc->operands[0] == IA64_OPND_AR3 |
| 9317 | && CURR_SLOT.opnd[0].X_add_number - REG_AR == AR_BSPSTORE) |
| 9318 | { |
| 9319 | specs[count++] = tmpl; |
| 9320 | } |
| 9321 | } |
| 9322 | else |
| 9323 | { |
| 9324 | if (idesc->operands[0] == IA64_OPND_AR3) |
| 9325 | { |
| 9326 | if (CURR_SLOT.opnd[0].X_add_number - REG_AR == AR_BSPSTORE |
| 9327 | || CURR_SLOT.opnd[0].X_add_number - REG_AR == AR_RNAT) |
| 9328 | { |
| 9329 | specs[count++] = tmpl; |
| 9330 | } |
| 9331 | } |
| 9332 | else if (idesc->operands[1] == IA64_OPND_AR3) |
| 9333 | { |
| 9334 | if (CURR_SLOT.opnd[1].X_add_number - REG_AR == AR_BSP |
| 9335 | || CURR_SLOT.opnd[1].X_add_number - REG_AR == AR_BSPSTORE |
| 9336 | || CURR_SLOT.opnd[1].X_add_number - REG_AR == AR_RNAT) |
| 9337 | { |
| 9338 | specs[count++] = tmpl; |
| 9339 | } |
| 9340 | } |
| 9341 | } |
| 9342 | } |
| 9343 | else |
| 9344 | { |
| 9345 | specs[count++] = tmpl; |
| 9346 | } |
| 9347 | break; |
| 9348 | |
| 9349 | case IA64_RS_ANY: |
| 9350 | /* FIXME -- do any of these need to be non-specific? */ |
| 9351 | specs[count++] = tmpl; |
| 9352 | break; |
| 9353 | |
| 9354 | default: |
| 9355 | as_bad (_("Unrecognized dependency specifier %d\n"), dep->specifier); |
| 9356 | break; |
| 9357 | } |
| 9358 | |
| 9359 | return count; |
| 9360 | } |
| 9361 | |
| 9362 | /* Clear branch flags on marked resources. This breaks the link between the |
| 9363 | QP of the marking instruction and a subsequent branch on the same QP. */ |
| 9364 | |
| 9365 | static void |
| 9366 | clear_qp_branch_flag (valueT mask) |
| 9367 | { |
| 9368 | int i; |
| 9369 | for (i = 0; i < regdepslen; i++) |
| 9370 | { |
| 9371 | valueT bit = ((valueT) 1 << regdeps[i].qp_regno); |
| 9372 | if ((bit & mask) != 0) |
| 9373 | { |
| 9374 | regdeps[i].link_to_qp_branch = 0; |
| 9375 | } |
| 9376 | } |
| 9377 | } |
| 9378 | |
| 9379 | /* MASK contains 2 and only 2 PRs which are mutually exclusive. Remove |
| 9380 | any mutexes which contain one of the PRs and create new ones when |
| 9381 | needed. */ |
| 9382 | |
| 9383 | static int |
| 9384 | update_qp_mutex (valueT mask) |
| 9385 | { |
| 9386 | int i; |
| 9387 | int add = 0; |
| 9388 | |
| 9389 | i = 0; |
| 9390 | while (i < qp_mutexeslen) |
| 9391 | { |
| 9392 | if ((qp_mutexes[i].prmask & mask) != 0) |
| 9393 | { |
| 9394 | /* If it destroys and creates the same mutex, do nothing. */ |
| 9395 | if (qp_mutexes[i].prmask == mask |
| 9396 | && qp_mutexes[i].path == md.path) |
| 9397 | { |
| 9398 | i++; |
| 9399 | add = -1; |
| 9400 | } |
| 9401 | else |
| 9402 | { |
| 9403 | int keep = 0; |
| 9404 | |
| 9405 | if (md.debug_dv) |
| 9406 | { |
| 9407 | fprintf (stderr, " Clearing mutex relation"); |
| 9408 | print_prmask (qp_mutexes[i].prmask); |
| 9409 | fprintf (stderr, "\n"); |
| 9410 | } |
| 9411 | |
| 9412 | /* Deal with the old mutex with more than 3+ PRs only if |
| 9413 | the new mutex on the same execution path with it. |
| 9414 | |
| 9415 | FIXME: The 3+ mutex support is incomplete. |
| 9416 | dot_pred_rel () may be a better place to fix it. */ |
| 9417 | if (qp_mutexes[i].path == md.path) |
| 9418 | { |
| 9419 | /* If it is a proper subset of the mutex, create a |
| 9420 | new mutex. */ |
| 9421 | if (add == 0 |
| 9422 | && (qp_mutexes[i].prmask & mask) == mask) |
| 9423 | add = 1; |
| 9424 | |
| 9425 | qp_mutexes[i].prmask &= ~mask; |
| 9426 | if (qp_mutexes[i].prmask & (qp_mutexes[i].prmask - 1)) |
| 9427 | { |
| 9428 | /* Modify the mutex if there are more than one |
| 9429 | PR left. */ |
| 9430 | keep = 1; |
| 9431 | i++; |
| 9432 | } |
| 9433 | } |
| 9434 | |
| 9435 | if (keep == 0) |
| 9436 | /* Remove the mutex. */ |
| 9437 | qp_mutexes[i] = qp_mutexes[--qp_mutexeslen]; |
| 9438 | } |
| 9439 | } |
| 9440 | else |
| 9441 | ++i; |
| 9442 | } |
| 9443 | |
| 9444 | if (add == 1) |
| 9445 | add_qp_mutex (mask); |
| 9446 | |
| 9447 | return add; |
| 9448 | } |
| 9449 | |
| 9450 | /* Remove any mutexes which contain any of the PRs indicated in the mask. |
| 9451 | |
| 9452 | Any changes to a PR clears the mutex relations which include that PR. */ |
| 9453 | |
| 9454 | static void |
| 9455 | clear_qp_mutex (valueT mask) |
| 9456 | { |
| 9457 | int i; |
| 9458 | |
| 9459 | i = 0; |
| 9460 | while (i < qp_mutexeslen) |
| 9461 | { |
| 9462 | if ((qp_mutexes[i].prmask & mask) != 0) |
| 9463 | { |
| 9464 | if (md.debug_dv) |
| 9465 | { |
| 9466 | fprintf (stderr, " Clearing mutex relation"); |
| 9467 | print_prmask (qp_mutexes[i].prmask); |
| 9468 | fprintf (stderr, "\n"); |
| 9469 | } |
| 9470 | qp_mutexes[i] = qp_mutexes[--qp_mutexeslen]; |
| 9471 | } |
| 9472 | else |
| 9473 | ++i; |
| 9474 | } |
| 9475 | } |
| 9476 | |
| 9477 | /* Clear implies relations which contain PRs in the given masks. |
| 9478 | P1_MASK indicates the source of the implies relation, while P2_MASK |
| 9479 | indicates the implied PR. */ |
| 9480 | |
| 9481 | static void |
| 9482 | clear_qp_implies (valueT p1_mask, valueT p2_mask) |
| 9483 | { |
| 9484 | int i; |
| 9485 | |
| 9486 | i = 0; |
| 9487 | while (i < qp_implieslen) |
| 9488 | { |
| 9489 | if ((((valueT) 1 << qp_implies[i].p1) & p1_mask) != 0 |
| 9490 | || (((valueT) 1 << qp_implies[i].p2) & p2_mask) != 0) |
| 9491 | { |
| 9492 | if (md.debug_dv) |
| 9493 | fprintf (stderr, "Clearing implied relation PR%d->PR%d\n", |
| 9494 | qp_implies[i].p1, qp_implies[i].p2); |
| 9495 | qp_implies[i] = qp_implies[--qp_implieslen]; |
| 9496 | } |
| 9497 | else |
| 9498 | ++i; |
| 9499 | } |
| 9500 | } |
| 9501 | |
| 9502 | /* Add the PRs specified to the list of implied relations. */ |
| 9503 | |
| 9504 | static void |
| 9505 | add_qp_imply (int p1, int p2) |
| 9506 | { |
| 9507 | valueT mask; |
| 9508 | valueT bit; |
| 9509 | int i; |
| 9510 | |
| 9511 | /* p0 is not meaningful here. */ |
| 9512 | if (p1 == 0 || p2 == 0) |
| 9513 | abort (); |
| 9514 | |
| 9515 | if (p1 == p2) |
| 9516 | return; |
| 9517 | |
| 9518 | /* If it exists already, ignore it. */ |
| 9519 | for (i = 0; i < qp_implieslen; i++) |
| 9520 | { |
| 9521 | if (qp_implies[i].p1 == p1 |
| 9522 | && qp_implies[i].p2 == p2 |
| 9523 | && qp_implies[i].path == md.path |
| 9524 | && !qp_implies[i].p2_branched) |
| 9525 | return; |
| 9526 | } |
| 9527 | |
| 9528 | if (qp_implieslen == qp_impliestotlen) |
| 9529 | { |
| 9530 | qp_impliestotlen += 20; |
| 9531 | qp_implies = (struct qp_imply *) |
| 9532 | xrealloc ((void *) qp_implies, |
| 9533 | qp_impliestotlen * sizeof (struct qp_imply)); |
| 9534 | } |
| 9535 | if (md.debug_dv) |
| 9536 | fprintf (stderr, " Registering PR%d implies PR%d\n", p1, p2); |
| 9537 | qp_implies[qp_implieslen].p1 = p1; |
| 9538 | qp_implies[qp_implieslen].p2 = p2; |
| 9539 | qp_implies[qp_implieslen].path = md.path; |
| 9540 | qp_implies[qp_implieslen++].p2_branched = 0; |
| 9541 | |
| 9542 | /* Add in the implied transitive relations; for everything that p2 implies, |
| 9543 | make p1 imply that, too; for everything that implies p1, make it imply p2 |
| 9544 | as well. */ |
| 9545 | for (i = 0; i < qp_implieslen; i++) |
| 9546 | { |
| 9547 | if (qp_implies[i].p1 == p2) |
| 9548 | add_qp_imply (p1, qp_implies[i].p2); |
| 9549 | if (qp_implies[i].p2 == p1) |
| 9550 | add_qp_imply (qp_implies[i].p1, p2); |
| 9551 | } |
| 9552 | /* Add in mutex relations implied by this implies relation; for each mutex |
| 9553 | relation containing p2, duplicate it and replace p2 with p1. */ |
| 9554 | bit = (valueT) 1 << p1; |
| 9555 | mask = (valueT) 1 << p2; |
| 9556 | for (i = 0; i < qp_mutexeslen; i++) |
| 9557 | { |
| 9558 | if (qp_mutexes[i].prmask & mask) |
| 9559 | add_qp_mutex ((qp_mutexes[i].prmask & ~mask) | bit); |
| 9560 | } |
| 9561 | } |
| 9562 | |
| 9563 | /* Add the PRs specified in the mask to the mutex list; this means that only |
| 9564 | one of the PRs can be true at any time. PR0 should never be included in |
| 9565 | the mask. */ |
| 9566 | |
| 9567 | static void |
| 9568 | add_qp_mutex (valueT mask) |
| 9569 | { |
| 9570 | if (mask & 0x1) |
| 9571 | abort (); |
| 9572 | |
| 9573 | if (qp_mutexeslen == qp_mutexestotlen) |
| 9574 | { |
| 9575 | qp_mutexestotlen += 20; |
| 9576 | qp_mutexes = (struct qpmutex *) |
| 9577 | xrealloc ((void *) qp_mutexes, |
| 9578 | qp_mutexestotlen * sizeof (struct qpmutex)); |
| 9579 | } |
| 9580 | if (md.debug_dv) |
| 9581 | { |
| 9582 | fprintf (stderr, " Registering mutex on"); |
| 9583 | print_prmask (mask); |
| 9584 | fprintf (stderr, "\n"); |
| 9585 | } |
| 9586 | qp_mutexes[qp_mutexeslen].path = md.path; |
| 9587 | qp_mutexes[qp_mutexeslen++].prmask = mask; |
| 9588 | } |
| 9589 | |
| 9590 | static int |
| 9591 | has_suffix_p (const char *name, const char *suffix) |
| 9592 | { |
| 9593 | size_t namelen = strlen (name); |
| 9594 | size_t sufflen = strlen (suffix); |
| 9595 | |
| 9596 | if (namelen <= sufflen) |
| 9597 | return 0; |
| 9598 | return strcmp (name + namelen - sufflen, suffix) == 0; |
| 9599 | } |
| 9600 | |
| 9601 | static void |
| 9602 | clear_register_values (void) |
| 9603 | { |
| 9604 | int i; |
| 9605 | if (md.debug_dv) |
| 9606 | fprintf (stderr, " Clearing register values\n"); |
| 9607 | for (i = 1; i < NELEMS (gr_values); i++) |
| 9608 | gr_values[i].known = 0; |
| 9609 | } |
| 9610 | |
| 9611 | /* Keep track of register values/changes which affect DV tracking. |
| 9612 | |
| 9613 | optimization note: should add a flag to classes of insns where otherwise we |
| 9614 | have to examine a group of strings to identify them. */ |
| 9615 | |
| 9616 | static void |
| 9617 | note_register_values (struct ia64_opcode *idesc) |
| 9618 | { |
| 9619 | valueT qp_changemask = 0; |
| 9620 | int i; |
| 9621 | |
| 9622 | /* Invalidate values for registers being written to. */ |
| 9623 | for (i = 0; i < idesc->num_outputs; i++) |
| 9624 | { |
| 9625 | if (idesc->operands[i] == IA64_OPND_R1 |
| 9626 | || idesc->operands[i] == IA64_OPND_R2 |
| 9627 | || idesc->operands[i] == IA64_OPND_R3) |
| 9628 | { |
| 9629 | int regno = CURR_SLOT.opnd[i].X_add_number - REG_GR; |
| 9630 | if (regno > 0 && regno < NELEMS (gr_values)) |
| 9631 | gr_values[regno].known = 0; |
| 9632 | } |
| 9633 | else if (idesc->operands[i] == IA64_OPND_R3_2) |
| 9634 | { |
| 9635 | int regno = CURR_SLOT.opnd[i].X_add_number - REG_GR; |
| 9636 | if (regno > 0 && regno < 4) |
| 9637 | gr_values[regno].known = 0; |
| 9638 | } |
| 9639 | else if (idesc->operands[i] == IA64_OPND_P1 |
| 9640 | || idesc->operands[i] == IA64_OPND_P2) |
| 9641 | { |
| 9642 | int regno = CURR_SLOT.opnd[i].X_add_number - REG_P; |
| 9643 | qp_changemask |= (valueT) 1 << regno; |
| 9644 | } |
| 9645 | else if (idesc->operands[i] == IA64_OPND_PR) |
| 9646 | { |
| 9647 | if (idesc->operands[2] & (valueT) 0x10000) |
| 9648 | qp_changemask = ~(valueT) 0x1FFFF | idesc->operands[2]; |
| 9649 | else |
| 9650 | qp_changemask = idesc->operands[2]; |
| 9651 | break; |
| 9652 | } |
| 9653 | else if (idesc->operands[i] == IA64_OPND_PR_ROT) |
| 9654 | { |
| 9655 | if (idesc->operands[1] & ((valueT) 1 << 43)) |
| 9656 | qp_changemask = -((valueT) 1 << 44) | idesc->operands[1]; |
| 9657 | else |
| 9658 | qp_changemask = idesc->operands[1]; |
| 9659 | qp_changemask &= ~(valueT) 0xFFFF; |
| 9660 | break; |
| 9661 | } |
| 9662 | } |
| 9663 | |
| 9664 | /* Always clear qp branch flags on any PR change. */ |
| 9665 | /* FIXME there may be exceptions for certain compares. */ |
| 9666 | clear_qp_branch_flag (qp_changemask); |
| 9667 | |
| 9668 | /* Invalidate rotating registers on insns which affect RRBs in CFM. */ |
| 9669 | if (idesc->flags & IA64_OPCODE_MOD_RRBS) |
| 9670 | { |
| 9671 | qp_changemask |= ~(valueT) 0xFFFF; |
| 9672 | if (strcmp (idesc->name, "clrrrb.pr") != 0) |
| 9673 | { |
| 9674 | for (i = 32; i < 32 + md.rot.num_regs; i++) |
| 9675 | gr_values[i].known = 0; |
| 9676 | } |
| 9677 | clear_qp_mutex (qp_changemask); |
| 9678 | clear_qp_implies (qp_changemask, qp_changemask); |
| 9679 | } |
| 9680 | /* After a call, all register values are undefined, except those marked |
| 9681 | as "safe". */ |
| 9682 | else if (strncmp (idesc->name, "br.call", 6) == 0 |
| 9683 | || strncmp (idesc->name, "brl.call", 7) == 0) |
| 9684 | { |
| 9685 | /* FIXME keep GR values which are marked as "safe_across_calls" */ |
| 9686 | clear_register_values (); |
| 9687 | clear_qp_mutex (~qp_safe_across_calls); |
| 9688 | clear_qp_implies (~qp_safe_across_calls, ~qp_safe_across_calls); |
| 9689 | clear_qp_branch_flag (~qp_safe_across_calls); |
| 9690 | } |
| 9691 | else if (is_interruption_or_rfi (idesc) |
| 9692 | || is_taken_branch (idesc)) |
| 9693 | { |
| 9694 | clear_register_values (); |
| 9695 | clear_qp_mutex (~(valueT) 0); |
| 9696 | clear_qp_implies (~(valueT) 0, ~(valueT) 0); |
| 9697 | } |
| 9698 | /* Look for mutex and implies relations. */ |
| 9699 | else if ((idesc->operands[0] == IA64_OPND_P1 |
| 9700 | || idesc->operands[0] == IA64_OPND_P2) |
| 9701 | && (idesc->operands[1] == IA64_OPND_P1 |
| 9702 | || idesc->operands[1] == IA64_OPND_P2)) |
| 9703 | { |
| 9704 | int p1 = CURR_SLOT.opnd[0].X_add_number - REG_P; |
| 9705 | int p2 = CURR_SLOT.opnd[1].X_add_number - REG_P; |
| 9706 | valueT p1mask = (p1 != 0) ? (valueT) 1 << p1 : 0; |
| 9707 | valueT p2mask = (p2 != 0) ? (valueT) 1 << p2 : 0; |
| 9708 | |
| 9709 | /* If both PRs are PR0, we can't really do anything. */ |
| 9710 | if (p1 == 0 && p2 == 0) |
| 9711 | { |
| 9712 | if (md.debug_dv) |
| 9713 | fprintf (stderr, " Ignoring PRs due to inclusion of p0\n"); |
| 9714 | } |
| 9715 | /* In general, clear mutexes and implies which include P1 or P2, |
| 9716 | with the following exceptions. */ |
| 9717 | else if (has_suffix_p (idesc->name, ".or.andcm") |
| 9718 | || has_suffix_p (idesc->name, ".and.orcm")) |
| 9719 | { |
| 9720 | clear_qp_implies (p2mask, p1mask); |
| 9721 | } |
| 9722 | else if (has_suffix_p (idesc->name, ".andcm") |
| 9723 | || has_suffix_p (idesc->name, ".and")) |
| 9724 | { |
| 9725 | clear_qp_implies (0, p1mask | p2mask); |
| 9726 | } |
| 9727 | else if (has_suffix_p (idesc->name, ".orcm") |
| 9728 | || has_suffix_p (idesc->name, ".or")) |
| 9729 | { |
| 9730 | clear_qp_mutex (p1mask | p2mask); |
| 9731 | clear_qp_implies (p1mask | p2mask, 0); |
| 9732 | } |
| 9733 | else |
| 9734 | { |
| 9735 | int added = 0; |
| 9736 | |
| 9737 | clear_qp_implies (p1mask | p2mask, p1mask | p2mask); |
| 9738 | |
| 9739 | /* If one of the PRs is PR0, we call clear_qp_mutex. */ |
| 9740 | if (p1 == 0 || p2 == 0) |
| 9741 | clear_qp_mutex (p1mask | p2mask); |
| 9742 | else |
| 9743 | added = update_qp_mutex (p1mask | p2mask); |
| 9744 | |
| 9745 | if (CURR_SLOT.qp_regno == 0 |
| 9746 | || has_suffix_p (idesc->name, ".unc")) |
| 9747 | { |
| 9748 | if (added == 0 && p1 && p2) |
| 9749 | add_qp_mutex (p1mask | p2mask); |
| 9750 | if (CURR_SLOT.qp_regno != 0) |
| 9751 | { |
| 9752 | if (p1) |
| 9753 | add_qp_imply (p1, CURR_SLOT.qp_regno); |
| 9754 | if (p2) |
| 9755 | add_qp_imply (p2, CURR_SLOT.qp_regno); |
| 9756 | } |
| 9757 | } |
| 9758 | } |
| 9759 | } |
| 9760 | /* Look for mov imm insns into GRs. */ |
| 9761 | else if (idesc->operands[0] == IA64_OPND_R1 |
| 9762 | && (idesc->operands[1] == IA64_OPND_IMM22 |
| 9763 | || idesc->operands[1] == IA64_OPND_IMMU64) |
| 9764 | && CURR_SLOT.opnd[1].X_op == O_constant |
| 9765 | && (strcmp (idesc->name, "mov") == 0 |
| 9766 | || strcmp (idesc->name, "movl") == 0)) |
| 9767 | { |
| 9768 | int regno = CURR_SLOT.opnd[0].X_add_number - REG_GR; |
| 9769 | if (regno > 0 && regno < NELEMS (gr_values)) |
| 9770 | { |
| 9771 | gr_values[regno].known = 1; |
| 9772 | gr_values[regno].value = CURR_SLOT.opnd[1].X_add_number; |
| 9773 | gr_values[regno].path = md.path; |
| 9774 | if (md.debug_dv) |
| 9775 | { |
| 9776 | fprintf (stderr, " Know gr%d = ", regno); |
| 9777 | fprintf_vma (stderr, gr_values[regno].value); |
| 9778 | fputs ("\n", stderr); |
| 9779 | } |
| 9780 | } |
| 9781 | } |
| 9782 | /* Look for dep.z imm insns. */ |
| 9783 | else if (idesc->operands[0] == IA64_OPND_R1 |
| 9784 | && idesc->operands[1] == IA64_OPND_IMM8 |
| 9785 | && strcmp (idesc->name, "dep.z") == 0) |
| 9786 | { |
| 9787 | int regno = CURR_SLOT.opnd[0].X_add_number - REG_GR; |
| 9788 | if (regno > 0 && regno < NELEMS (gr_values)) |
| 9789 | { |
| 9790 | valueT value = CURR_SLOT.opnd[1].X_add_number; |
| 9791 | |
| 9792 | if (CURR_SLOT.opnd[3].X_add_number < 64) |
| 9793 | value &= ((valueT)1 << CURR_SLOT.opnd[3].X_add_number) - 1; |
| 9794 | value <<= CURR_SLOT.opnd[2].X_add_number; |
| 9795 | gr_values[regno].known = 1; |
| 9796 | gr_values[regno].value = value; |
| 9797 | gr_values[regno].path = md.path; |
| 9798 | if (md.debug_dv) |
| 9799 | { |
| 9800 | fprintf (stderr, " Know gr%d = ", regno); |
| 9801 | fprintf_vma (stderr, gr_values[regno].value); |
| 9802 | fputs ("\n", stderr); |
| 9803 | } |
| 9804 | } |
| 9805 | } |
| 9806 | else |
| 9807 | { |
| 9808 | clear_qp_mutex (qp_changemask); |
| 9809 | clear_qp_implies (qp_changemask, qp_changemask); |
| 9810 | } |
| 9811 | } |
| 9812 | |
| 9813 | /* Return whether the given predicate registers are currently mutex. */ |
| 9814 | |
| 9815 | static int |
| 9816 | qp_mutex (int p1, int p2, int path) |
| 9817 | { |
| 9818 | int i; |
| 9819 | valueT mask; |
| 9820 | |
| 9821 | if (p1 != p2) |
| 9822 | { |
| 9823 | mask = ((valueT) 1 << p1) | (valueT) 1 << p2; |
| 9824 | for (i = 0; i < qp_mutexeslen; i++) |
| 9825 | { |
| 9826 | if (qp_mutexes[i].path >= path |
| 9827 | && (qp_mutexes[i].prmask & mask) == mask) |
| 9828 | return 1; |
| 9829 | } |
| 9830 | } |
| 9831 | return 0; |
| 9832 | } |
| 9833 | |
| 9834 | /* Return whether the given resource is in the given insn's list of chks |
| 9835 | Return 1 if the conflict is absolutely determined, 2 if it's a potential |
| 9836 | conflict. */ |
| 9837 | |
| 9838 | static int |
| 9839 | resources_match (struct rsrc *rs, |
| 9840 | struct ia64_opcode *idesc, |
| 9841 | int note, |
| 9842 | int qp_regno, |
| 9843 | int path) |
| 9844 | { |
| 9845 | struct rsrc specs[MAX_SPECS]; |
| 9846 | int count; |
| 9847 | |
| 9848 | /* If the marked resource's qp_regno and the given qp_regno are mutex, |
| 9849 | we don't need to check. One exception is note 11, which indicates that |
| 9850 | target predicates are written regardless of PR[qp]. */ |
| 9851 | if (qp_mutex (rs->qp_regno, qp_regno, path) |
| 9852 | && note != 11) |
| 9853 | return 0; |
| 9854 | |
| 9855 | count = specify_resource (rs->dependency, idesc, DV_CHK, specs, note, path); |
| 9856 | while (count-- > 0) |
| 9857 | { |
| 9858 | /* UNAT checking is a bit more specific than other resources */ |
| 9859 | if (rs->dependency->specifier == IA64_RS_AR_UNAT |
| 9860 | && specs[count].mem_offset.hint |
| 9861 | && rs->mem_offset.hint) |
| 9862 | { |
| 9863 | if (rs->mem_offset.base == specs[count].mem_offset.base) |
| 9864 | { |
| 9865 | if (((rs->mem_offset.offset >> 3) & 0x3F) == |
| 9866 | ((specs[count].mem_offset.offset >> 3) & 0x3F)) |
| 9867 | return 1; |
| 9868 | else |
| 9869 | continue; |
| 9870 | } |
| 9871 | } |
| 9872 | |
| 9873 | /* Skip apparent PR write conflicts where both writes are an AND or both |
| 9874 | writes are an OR. */ |
| 9875 | if (rs->dependency->specifier == IA64_RS_PR |
| 9876 | || rs->dependency->specifier == IA64_RS_PRr |
| 9877 | || rs->dependency->specifier == IA64_RS_PR63) |
| 9878 | { |
| 9879 | if (specs[count].cmp_type != CMP_NONE |
| 9880 | && specs[count].cmp_type == rs->cmp_type) |
| 9881 | { |
| 9882 | if (md.debug_dv) |
| 9883 | fprintf (stderr, " %s on parallel compare allowed (PR%d)\n", |
| 9884 | dv_mode[rs->dependency->mode], |
| 9885 | rs->dependency->specifier != IA64_RS_PR63 ? |
| 9886 | specs[count].index : 63); |
| 9887 | continue; |
| 9888 | } |
| 9889 | if (md.debug_dv) |
| 9890 | fprintf (stderr, |
| 9891 | " %s on parallel compare conflict %s vs %s on PR%d\n", |
| 9892 | dv_mode[rs->dependency->mode], |
| 9893 | dv_cmp_type[rs->cmp_type], |
| 9894 | dv_cmp_type[specs[count].cmp_type], |
| 9895 | rs->dependency->specifier != IA64_RS_PR63 ? |
| 9896 | specs[count].index : 63); |
| 9897 | |
| 9898 | } |
| 9899 | |
| 9900 | /* If either resource is not specific, conservatively assume a conflict |
| 9901 | */ |
| 9902 | if (!specs[count].specific || !rs->specific) |
| 9903 | return 2; |
| 9904 | else if (specs[count].index == rs->index) |
| 9905 | return 1; |
| 9906 | } |
| 9907 | |
| 9908 | return 0; |
| 9909 | } |
| 9910 | |
| 9911 | /* Indicate an instruction group break; if INSERT_STOP is non-zero, then |
| 9912 | insert a stop to create the break. Update all resource dependencies |
| 9913 | appropriately. If QP_REGNO is non-zero, only apply the break to resources |
| 9914 | which use the same QP_REGNO and have the link_to_qp_branch flag set. |
| 9915 | If SAVE_CURRENT is non-zero, don't affect resources marked by the current |
| 9916 | instruction. */ |
| 9917 | |
| 9918 | static void |
| 9919 | insn_group_break (int insert_stop, int qp_regno, int save_current) |
| 9920 | { |
| 9921 | int i; |
| 9922 | |
| 9923 | if (insert_stop && md.num_slots_in_use > 0) |
| 9924 | PREV_SLOT.end_of_insn_group = 1; |
| 9925 | |
| 9926 | if (md.debug_dv) |
| 9927 | { |
| 9928 | fprintf (stderr, " Insn group break%s", |
| 9929 | (insert_stop ? " (w/stop)" : "")); |
| 9930 | if (qp_regno != 0) |
| 9931 | fprintf (stderr, " effective for QP=%d", qp_regno); |
| 9932 | fprintf (stderr, "\n"); |
| 9933 | } |
| 9934 | |
| 9935 | i = 0; |
| 9936 | while (i < regdepslen) |
| 9937 | { |
| 9938 | const struct ia64_dependency *dep = regdeps[i].dependency; |
| 9939 | |
| 9940 | if (qp_regno != 0 |
| 9941 | && regdeps[i].qp_regno != qp_regno) |
| 9942 | { |
| 9943 | ++i; |
| 9944 | continue; |
| 9945 | } |
| 9946 | |
| 9947 | if (save_current |
| 9948 | && CURR_SLOT.src_file == regdeps[i].file |
| 9949 | && CURR_SLOT.src_line == regdeps[i].line) |
| 9950 | { |
| 9951 | ++i; |
| 9952 | continue; |
| 9953 | } |
| 9954 | |
| 9955 | /* clear dependencies which are automatically cleared by a stop, or |
| 9956 | those that have reached the appropriate state of insn serialization */ |
| 9957 | if (dep->semantics == IA64_DVS_IMPLIED |
| 9958 | || dep->semantics == IA64_DVS_IMPLIEDF |
| 9959 | || regdeps[i].insn_srlz == STATE_SRLZ) |
| 9960 | { |
| 9961 | print_dependency ("Removing", i); |
| 9962 | regdeps[i] = regdeps[--regdepslen]; |
| 9963 | } |
| 9964 | else |
| 9965 | { |
| 9966 | if (dep->semantics == IA64_DVS_DATA |
| 9967 | || dep->semantics == IA64_DVS_INSTR |
| 9968 | || dep->semantics == IA64_DVS_SPECIFIC) |
| 9969 | { |
| 9970 | if (regdeps[i].insn_srlz == STATE_NONE) |
| 9971 | regdeps[i].insn_srlz = STATE_STOP; |
| 9972 | if (regdeps[i].data_srlz == STATE_NONE) |
| 9973 | regdeps[i].data_srlz = STATE_STOP; |
| 9974 | } |
| 9975 | ++i; |
| 9976 | } |
| 9977 | } |
| 9978 | } |
| 9979 | |
| 9980 | /* Add the given resource usage spec to the list of active dependencies. */ |
| 9981 | |
| 9982 | static void |
| 9983 | mark_resource (struct ia64_opcode *idesc ATTRIBUTE_UNUSED, |
| 9984 | const struct ia64_dependency *dep ATTRIBUTE_UNUSED, |
| 9985 | struct rsrc *spec, |
| 9986 | int depind, |
| 9987 | int path) |
| 9988 | { |
| 9989 | if (regdepslen == regdepstotlen) |
| 9990 | { |
| 9991 | regdepstotlen += 20; |
| 9992 | regdeps = (struct rsrc *) |
| 9993 | xrealloc ((void *) regdeps, |
| 9994 | regdepstotlen * sizeof (struct rsrc)); |
| 9995 | } |
| 9996 | |
| 9997 | regdeps[regdepslen] = *spec; |
| 9998 | regdeps[regdepslen].depind = depind; |
| 9999 | regdeps[regdepslen].path = path; |
| 10000 | regdeps[regdepslen].file = CURR_SLOT.src_file; |
| 10001 | regdeps[regdepslen].line = CURR_SLOT.src_line; |
| 10002 | |
| 10003 | print_dependency ("Adding", regdepslen); |
| 10004 | |
| 10005 | ++regdepslen; |
| 10006 | } |
| 10007 | |
| 10008 | static void |
| 10009 | print_dependency (const char *action, int depind) |
| 10010 | { |
| 10011 | if (md.debug_dv) |
| 10012 | { |
| 10013 | fprintf (stderr, " %s %s '%s'", |
| 10014 | action, dv_mode[(regdeps[depind].dependency)->mode], |
| 10015 | (regdeps[depind].dependency)->name); |
| 10016 | if (regdeps[depind].specific && regdeps[depind].index >= 0) |
| 10017 | fprintf (stderr, " (%d)", regdeps[depind].index); |
| 10018 | if (regdeps[depind].mem_offset.hint) |
| 10019 | { |
| 10020 | fputs (" ", stderr); |
| 10021 | fprintf_vma (stderr, regdeps[depind].mem_offset.base); |
| 10022 | fputs ("+", stderr); |
| 10023 | fprintf_vma (stderr, regdeps[depind].mem_offset.offset); |
| 10024 | } |
| 10025 | fprintf (stderr, "\n"); |
| 10026 | } |
| 10027 | } |
| 10028 | |
| 10029 | static void |
| 10030 | instruction_serialization (void) |
| 10031 | { |
| 10032 | int i; |
| 10033 | if (md.debug_dv) |
| 10034 | fprintf (stderr, " Instruction serialization\n"); |
| 10035 | for (i = 0; i < regdepslen; i++) |
| 10036 | if (regdeps[i].insn_srlz == STATE_STOP) |
| 10037 | regdeps[i].insn_srlz = STATE_SRLZ; |
| 10038 | } |
| 10039 | |
| 10040 | static void |
| 10041 | data_serialization (void) |
| 10042 | { |
| 10043 | int i = 0; |
| 10044 | if (md.debug_dv) |
| 10045 | fprintf (stderr, " Data serialization\n"); |
| 10046 | while (i < regdepslen) |
| 10047 | { |
| 10048 | if (regdeps[i].data_srlz == STATE_STOP |
| 10049 | /* Note: as of 991210, all "other" dependencies are cleared by a |
| 10050 | data serialization. This might change with new tables */ |
| 10051 | || (regdeps[i].dependency)->semantics == IA64_DVS_OTHER) |
| 10052 | { |
| 10053 | print_dependency ("Removing", i); |
| 10054 | regdeps[i] = regdeps[--regdepslen]; |
| 10055 | } |
| 10056 | else |
| 10057 | ++i; |
| 10058 | } |
| 10059 | } |
| 10060 | |
| 10061 | /* Insert stops and serializations as needed to avoid DVs. */ |
| 10062 | |
| 10063 | static void |
| 10064 | remove_marked_resource (struct rsrc *rs) |
| 10065 | { |
| 10066 | switch (rs->dependency->semantics) |
| 10067 | { |
| 10068 | case IA64_DVS_SPECIFIC: |
| 10069 | if (md.debug_dv) |
| 10070 | fprintf (stderr, "Implementation-specific, assume worst case...\n"); |
| 10071 | /* ...fall through... */ |
| 10072 | case IA64_DVS_INSTR: |
| 10073 | if (md.debug_dv) |
| 10074 | fprintf (stderr, "Inserting instr serialization\n"); |
| 10075 | if (rs->insn_srlz < STATE_STOP) |
| 10076 | insn_group_break (1, 0, 0); |
| 10077 | if (rs->insn_srlz < STATE_SRLZ) |
| 10078 | { |
| 10079 | struct slot oldslot = CURR_SLOT; |
| 10080 | /* Manually jam a srlz.i insn into the stream */ |
| 10081 | memset (&CURR_SLOT, 0, sizeof (CURR_SLOT)); |
| 10082 | CURR_SLOT.user_template = -1; |
| 10083 | CURR_SLOT.idesc = ia64_find_opcode ("srlz.i"); |
| 10084 | instruction_serialization (); |
| 10085 | md.curr_slot = (md.curr_slot + 1) % NUM_SLOTS; |
| 10086 | if (++md.num_slots_in_use >= NUM_SLOTS) |
| 10087 | emit_one_bundle (); |
| 10088 | CURR_SLOT = oldslot; |
| 10089 | } |
| 10090 | insn_group_break (1, 0, 0); |
| 10091 | break; |
| 10092 | case IA64_DVS_OTHER: /* as of rev2 (991220) of the DV tables, all |
| 10093 | "other" types of DV are eliminated |
| 10094 | by a data serialization */ |
| 10095 | case IA64_DVS_DATA: |
| 10096 | if (md.debug_dv) |
| 10097 | fprintf (stderr, "Inserting data serialization\n"); |
| 10098 | if (rs->data_srlz < STATE_STOP) |
| 10099 | insn_group_break (1, 0, 0); |
| 10100 | { |
| 10101 | struct slot oldslot = CURR_SLOT; |
| 10102 | /* Manually jam a srlz.d insn into the stream */ |
| 10103 | memset (&CURR_SLOT, 0, sizeof (CURR_SLOT)); |
| 10104 | CURR_SLOT.user_template = -1; |
| 10105 | CURR_SLOT.idesc = ia64_find_opcode ("srlz.d"); |
| 10106 | data_serialization (); |
| 10107 | md.curr_slot = (md.curr_slot + 1) % NUM_SLOTS; |
| 10108 | if (++md.num_slots_in_use >= NUM_SLOTS) |
| 10109 | emit_one_bundle (); |
| 10110 | CURR_SLOT = oldslot; |
| 10111 | } |
| 10112 | break; |
| 10113 | case IA64_DVS_IMPLIED: |
| 10114 | case IA64_DVS_IMPLIEDF: |
| 10115 | if (md.debug_dv) |
| 10116 | fprintf (stderr, "Inserting stop\n"); |
| 10117 | insn_group_break (1, 0, 0); |
| 10118 | break; |
| 10119 | default: |
| 10120 | break; |
| 10121 | } |
| 10122 | } |
| 10123 | |
| 10124 | /* Check the resources used by the given opcode against the current dependency |
| 10125 | list. |
| 10126 | |
| 10127 | The check is run once for each execution path encountered. In this case, |
| 10128 | a unique execution path is the sequence of instructions following a code |
| 10129 | entry point, e.g. the following has three execution paths, one starting |
| 10130 | at L0, one at L1, and one at L2. |
| 10131 | |
| 10132 | L0: nop |
| 10133 | L1: add |
| 10134 | L2: add |
| 10135 | br.ret |
| 10136 | */ |
| 10137 | |
| 10138 | static void |
| 10139 | check_dependencies (struct ia64_opcode *idesc) |
| 10140 | { |
| 10141 | const struct ia64_opcode_dependency *opdeps = idesc->dependencies; |
| 10142 | int path; |
| 10143 | int i; |
| 10144 | |
| 10145 | /* Note that the number of marked resources may change within the |
| 10146 | loop if in auto mode. */ |
| 10147 | i = 0; |
| 10148 | while (i < regdepslen) |
| 10149 | { |
| 10150 | struct rsrc *rs = ®deps[i]; |
| 10151 | const struct ia64_dependency *dep = rs->dependency; |
| 10152 | int chkind; |
| 10153 | int note; |
| 10154 | int start_over = 0; |
| 10155 | |
| 10156 | if (dep->semantics == IA64_DVS_NONE |
| 10157 | || (chkind = depends_on (rs->depind, idesc)) == -1) |
| 10158 | { |
| 10159 | ++i; |
| 10160 | continue; |
| 10161 | } |
| 10162 | |
| 10163 | note = NOTE (opdeps->chks[chkind]); |
| 10164 | |
| 10165 | /* Check this resource against each execution path seen thus far. */ |
| 10166 | for (path = 0; path <= md.path; path++) |
| 10167 | { |
| 10168 | int matchtype; |
| 10169 | |
| 10170 | /* If the dependency wasn't on the path being checked, ignore it. */ |
| 10171 | if (rs->path < path) |
| 10172 | continue; |
| 10173 | |
| 10174 | /* If the QP for this insn implies a QP which has branched, don't |
| 10175 | bother checking. Ed. NOTE: I don't think this check is terribly |
| 10176 | useful; what's the point of generating code which will only be |
| 10177 | reached if its QP is zero? |
| 10178 | This code was specifically inserted to handle the following code, |
| 10179 | based on notes from Intel's DV checking code, where p1 implies p2. |
| 10180 | |
| 10181 | mov r4 = 2 |
| 10182 | (p2) br.cond L |
| 10183 | (p1) mov r4 = 7 |
| 10184 | */ |
| 10185 | if (CURR_SLOT.qp_regno != 0) |
| 10186 | { |
| 10187 | int skip = 0; |
| 10188 | int implies; |
| 10189 | for (implies = 0; implies < qp_implieslen; implies++) |
| 10190 | { |
| 10191 | if (qp_implies[implies].path >= path |
| 10192 | && qp_implies[implies].p1 == CURR_SLOT.qp_regno |
| 10193 | && qp_implies[implies].p2_branched) |
| 10194 | { |
| 10195 | skip = 1; |
| 10196 | break; |
| 10197 | } |
| 10198 | } |
| 10199 | if (skip) |
| 10200 | continue; |
| 10201 | } |
| 10202 | |
| 10203 | if ((matchtype = resources_match (rs, idesc, note, |
| 10204 | CURR_SLOT.qp_regno, path)) != 0) |
| 10205 | { |
| 10206 | char msg[1024]; |
| 10207 | char pathmsg[256] = ""; |
| 10208 | char indexmsg[256] = ""; |
| 10209 | int certain = (matchtype == 1 && CURR_SLOT.qp_regno == 0); |
| 10210 | |
| 10211 | if (path != 0) |
| 10212 | snprintf (pathmsg, sizeof (pathmsg), |
| 10213 | " when entry is at label '%s'", |
| 10214 | md.entry_labels[path - 1]); |
| 10215 | if (matchtype == 1 && rs->index >= 0) |
| 10216 | snprintf (indexmsg, sizeof (indexmsg), |
| 10217 | ", specific resource number is %d", |
| 10218 | rs->index); |
| 10219 | snprintf (msg, sizeof (msg), |
| 10220 | "Use of '%s' %s %s dependency '%s' (%s)%s%s", |
| 10221 | idesc->name, |
| 10222 | (certain ? "violates" : "may violate"), |
| 10223 | dv_mode[dep->mode], dep->name, |
| 10224 | dv_sem[dep->semantics], |
| 10225 | pathmsg, indexmsg); |
| 10226 | |
| 10227 | if (md.explicit_mode) |
| 10228 | { |
| 10229 | as_warn ("%s", msg); |
| 10230 | if (path < md.path) |
| 10231 | as_warn (_("Only the first path encountering the conflict is reported")); |
| 10232 | as_warn_where (rs->file, rs->line, |
| 10233 | _("This is the location of the conflicting usage")); |
| 10234 | /* Don't bother checking other paths, to avoid duplicating |
| 10235 | the same warning */ |
| 10236 | break; |
| 10237 | } |
| 10238 | else |
| 10239 | { |
| 10240 | if (md.debug_dv) |
| 10241 | fprintf (stderr, "%s @ %s:%d\n", msg, rs->file, rs->line); |
| 10242 | |
| 10243 | remove_marked_resource (rs); |
| 10244 | |
| 10245 | /* since the set of dependencies has changed, start over */ |
| 10246 | /* FIXME -- since we're removing dvs as we go, we |
| 10247 | probably don't really need to start over... */ |
| 10248 | start_over = 1; |
| 10249 | break; |
| 10250 | } |
| 10251 | } |
| 10252 | } |
| 10253 | if (start_over) |
| 10254 | i = 0; |
| 10255 | else |
| 10256 | ++i; |
| 10257 | } |
| 10258 | } |
| 10259 | |
| 10260 | /* Register new dependencies based on the given opcode. */ |
| 10261 | |
| 10262 | static void |
| 10263 | mark_resources (struct ia64_opcode *idesc) |
| 10264 | { |
| 10265 | int i; |
| 10266 | const struct ia64_opcode_dependency *opdeps = idesc->dependencies; |
| 10267 | int add_only_qp_reads = 0; |
| 10268 | |
| 10269 | /* A conditional branch only uses its resources if it is taken; if it is |
| 10270 | taken, we stop following that path. The other branch types effectively |
| 10271 | *always* write their resources. If it's not taken, register only QP |
| 10272 | reads. */ |
| 10273 | if (is_conditional_branch (idesc) || is_interruption_or_rfi (idesc)) |
| 10274 | { |
| 10275 | add_only_qp_reads = 1; |
| 10276 | } |
| 10277 | |
| 10278 | if (md.debug_dv) |
| 10279 | fprintf (stderr, "Registering '%s' resource usage\n", idesc->name); |
| 10280 | |
| 10281 | for (i = 0; i < opdeps->nregs; i++) |
| 10282 | { |
| 10283 | const struct ia64_dependency *dep; |
| 10284 | struct rsrc specs[MAX_SPECS]; |
| 10285 | int note; |
| 10286 | int path; |
| 10287 | int count; |
| 10288 | |
| 10289 | dep = ia64_find_dependency (opdeps->regs[i]); |
| 10290 | note = NOTE (opdeps->regs[i]); |
| 10291 | |
| 10292 | if (add_only_qp_reads |
| 10293 | && !(dep->mode == IA64_DV_WAR |
| 10294 | && (dep->specifier == IA64_RS_PR |
| 10295 | || dep->specifier == IA64_RS_PRr |
| 10296 | || dep->specifier == IA64_RS_PR63))) |
| 10297 | continue; |
| 10298 | |
| 10299 | count = specify_resource (dep, idesc, DV_REG, specs, note, md.path); |
| 10300 | |
| 10301 | while (count-- > 0) |
| 10302 | { |
| 10303 | mark_resource (idesc, dep, &specs[count], |
| 10304 | DEP (opdeps->regs[i]), md.path); |
| 10305 | } |
| 10306 | |
| 10307 | /* The execution path may affect register values, which may in turn |
| 10308 | affect which indirect-access resources are accessed. */ |
| 10309 | switch (dep->specifier) |
| 10310 | { |
| 10311 | default: |
| 10312 | break; |
| 10313 | case IA64_RS_CPUID: |
| 10314 | case IA64_RS_DBR: |
| 10315 | case IA64_RS_IBR: |
| 10316 | case IA64_RS_MSR: |
| 10317 | case IA64_RS_PKR: |
| 10318 | case IA64_RS_PMC: |
| 10319 | case IA64_RS_PMD: |
| 10320 | case IA64_RS_RR: |
| 10321 | for (path = 0; path < md.path; path++) |
| 10322 | { |
| 10323 | count = specify_resource (dep, idesc, DV_REG, specs, note, path); |
| 10324 | while (count-- > 0) |
| 10325 | mark_resource (idesc, dep, &specs[count], |
| 10326 | DEP (opdeps->regs[i]), path); |
| 10327 | } |
| 10328 | break; |
| 10329 | } |
| 10330 | } |
| 10331 | } |
| 10332 | |
| 10333 | /* Remove dependencies when they no longer apply. */ |
| 10334 | |
| 10335 | static void |
| 10336 | update_dependencies (struct ia64_opcode *idesc) |
| 10337 | { |
| 10338 | int i; |
| 10339 | |
| 10340 | if (strcmp (idesc->name, "srlz.i") == 0) |
| 10341 | { |
| 10342 | instruction_serialization (); |
| 10343 | } |
| 10344 | else if (strcmp (idesc->name, "srlz.d") == 0) |
| 10345 | { |
| 10346 | data_serialization (); |
| 10347 | } |
| 10348 | else if (is_interruption_or_rfi (idesc) |
| 10349 | || is_taken_branch (idesc)) |
| 10350 | { |
| 10351 | /* Although technically the taken branch doesn't clear dependencies |
| 10352 | which require a srlz.[id], we don't follow the branch; the next |
| 10353 | instruction is assumed to start with a clean slate. */ |
| 10354 | regdepslen = 0; |
| 10355 | md.path = 0; |
| 10356 | } |
| 10357 | else if (is_conditional_branch (idesc) |
| 10358 | && CURR_SLOT.qp_regno != 0) |
| 10359 | { |
| 10360 | int is_call = strstr (idesc->name, ".call") != NULL; |
| 10361 | |
| 10362 | for (i = 0; i < qp_implieslen; i++) |
| 10363 | { |
| 10364 | /* If the conditional branch's predicate is implied by the predicate |
| 10365 | in an existing dependency, remove that dependency. */ |
| 10366 | if (qp_implies[i].p2 == CURR_SLOT.qp_regno) |
| 10367 | { |
| 10368 | int depind = 0; |
| 10369 | /* Note that this implied predicate takes a branch so that if |
| 10370 | a later insn generates a DV but its predicate implies this |
| 10371 | one, we can avoid the false DV warning. */ |
| 10372 | qp_implies[i].p2_branched = 1; |
| 10373 | while (depind < regdepslen) |
| 10374 | { |
| 10375 | if (regdeps[depind].qp_regno == qp_implies[i].p1) |
| 10376 | { |
| 10377 | print_dependency ("Removing", depind); |
| 10378 | regdeps[depind] = regdeps[--regdepslen]; |
| 10379 | } |
| 10380 | else |
| 10381 | ++depind; |
| 10382 | } |
| 10383 | } |
| 10384 | } |
| 10385 | /* Any marked resources which have this same predicate should be |
| 10386 | cleared, provided that the QP hasn't been modified between the |
| 10387 | marking instruction and the branch. */ |
| 10388 | if (is_call) |
| 10389 | { |
| 10390 | insn_group_break (0, CURR_SLOT.qp_regno, 1); |
| 10391 | } |
| 10392 | else |
| 10393 | { |
| 10394 | i = 0; |
| 10395 | while (i < regdepslen) |
| 10396 | { |
| 10397 | if (regdeps[i].qp_regno == CURR_SLOT.qp_regno |
| 10398 | && regdeps[i].link_to_qp_branch |
| 10399 | && (regdeps[i].file != CURR_SLOT.src_file |
| 10400 | || regdeps[i].line != CURR_SLOT.src_line)) |
| 10401 | { |
| 10402 | /* Treat like a taken branch */ |
| 10403 | print_dependency ("Removing", i); |
| 10404 | regdeps[i] = regdeps[--regdepslen]; |
| 10405 | } |
| 10406 | else |
| 10407 | ++i; |
| 10408 | } |
| 10409 | } |
| 10410 | } |
| 10411 | } |
| 10412 | |
| 10413 | /* Examine the current instruction for dependency violations. */ |
| 10414 | |
| 10415 | static int |
| 10416 | check_dv (struct ia64_opcode *idesc) |
| 10417 | { |
| 10418 | if (md.debug_dv) |
| 10419 | { |
| 10420 | fprintf (stderr, "Checking %s for violations (line %d, %d/%d)\n", |
| 10421 | idesc->name, CURR_SLOT.src_line, |
| 10422 | idesc->dependencies->nchks, |
| 10423 | idesc->dependencies->nregs); |
| 10424 | } |
| 10425 | |
| 10426 | /* Look through the list of currently marked resources; if the current |
| 10427 | instruction has the dependency in its chks list which uses that resource, |
| 10428 | check against the specific resources used. */ |
| 10429 | check_dependencies (idesc); |
| 10430 | |
| 10431 | /* Look up the instruction's regdeps (RAW writes, WAW writes, and WAR reads), |
| 10432 | then add them to the list of marked resources. */ |
| 10433 | mark_resources (idesc); |
| 10434 | |
| 10435 | /* There are several types of dependency semantics, and each has its own |
| 10436 | requirements for being cleared |
| 10437 | |
| 10438 | Instruction serialization (insns separated by interruption, rfi, or |
| 10439 | writer + srlz.i + reader, all in separate groups) clears DVS_INSTR. |
| 10440 | |
| 10441 | Data serialization (instruction serialization, or writer + srlz.d + |
| 10442 | reader, where writer and srlz.d are in separate groups) clears |
| 10443 | DVS_DATA. (This also clears DVS_OTHER, but that is not guaranteed to |
| 10444 | always be the case). |
| 10445 | |
| 10446 | Instruction group break (groups separated by stop, taken branch, |
| 10447 | interruption or rfi) clears DVS_IMPLIED and DVS_IMPLIEDF. |
| 10448 | */ |
| 10449 | update_dependencies (idesc); |
| 10450 | |
| 10451 | /* Sometimes, knowing a register value allows us to avoid giving a false DV |
| 10452 | warning. Keep track of as many as possible that are useful. */ |
| 10453 | note_register_values (idesc); |
| 10454 | |
| 10455 | /* We don't need or want this anymore. */ |
| 10456 | md.mem_offset.hint = 0; |
| 10457 | |
| 10458 | return 0; |
| 10459 | } |
| 10460 | |
| 10461 | /* Translate one line of assembly. Pseudo ops and labels do not show |
| 10462 | here. */ |
| 10463 | void |
| 10464 | md_assemble (char *str) |
| 10465 | { |
| 10466 | char *saved_input_line_pointer, *mnemonic; |
| 10467 | const struct pseudo_opcode *pdesc; |
| 10468 | struct ia64_opcode *idesc; |
| 10469 | unsigned char qp_regno; |
| 10470 | unsigned int flags; |
| 10471 | int ch; |
| 10472 | |
| 10473 | saved_input_line_pointer = input_line_pointer; |
| 10474 | input_line_pointer = str; |
| 10475 | |
| 10476 | /* extract the opcode (mnemonic): */ |
| 10477 | |
| 10478 | mnemonic = input_line_pointer; |
| 10479 | ch = get_symbol_end (); |
| 10480 | pdesc = (struct pseudo_opcode *) hash_find (md.pseudo_hash, mnemonic); |
| 10481 | if (pdesc) |
| 10482 | { |
| 10483 | *input_line_pointer = ch; |
| 10484 | (*pdesc->handler) (pdesc->arg); |
| 10485 | goto done; |
| 10486 | } |
| 10487 | |
| 10488 | /* Find the instruction descriptor matching the arguments. */ |
| 10489 | |
| 10490 | idesc = ia64_find_opcode (mnemonic); |
| 10491 | *input_line_pointer = ch; |
| 10492 | if (!idesc) |
| 10493 | { |
| 10494 | as_bad (_("Unknown opcode `%s'"), mnemonic); |
| 10495 | goto done; |
| 10496 | } |
| 10497 | |
| 10498 | idesc = parse_operands (idesc); |
| 10499 | if (!idesc) |
| 10500 | goto done; |
| 10501 | |
| 10502 | /* Handle the dynamic ops we can handle now: */ |
| 10503 | if (idesc->type == IA64_TYPE_DYN) |
| 10504 | { |
| 10505 | if (strcmp (idesc->name, "add") == 0) |
| 10506 | { |
| 10507 | if (CURR_SLOT.opnd[2].X_op == O_register |
| 10508 | && CURR_SLOT.opnd[2].X_add_number < 4) |
| 10509 | mnemonic = "addl"; |
| 10510 | else |
| 10511 | mnemonic = "adds"; |
| 10512 | ia64_free_opcode (idesc); |
| 10513 | idesc = ia64_find_opcode (mnemonic); |
| 10514 | } |
| 10515 | else if (strcmp (idesc->name, "mov") == 0) |
| 10516 | { |
| 10517 | enum ia64_opnd opnd1, opnd2; |
| 10518 | int rop; |
| 10519 | |
| 10520 | opnd1 = idesc->operands[0]; |
| 10521 | opnd2 = idesc->operands[1]; |
| 10522 | if (opnd1 == IA64_OPND_AR3) |
| 10523 | rop = 0; |
| 10524 | else if (opnd2 == IA64_OPND_AR3) |
| 10525 | rop = 1; |
| 10526 | else |
| 10527 | abort (); |
| 10528 | if (CURR_SLOT.opnd[rop].X_op == O_register) |
| 10529 | { |
| 10530 | if (ar_is_only_in_integer_unit (CURR_SLOT.opnd[rop].X_add_number)) |
| 10531 | mnemonic = "mov.i"; |
| 10532 | else if (ar_is_only_in_memory_unit (CURR_SLOT.opnd[rop].X_add_number)) |
| 10533 | mnemonic = "mov.m"; |
| 10534 | else |
| 10535 | rop = -1; |
| 10536 | } |
| 10537 | else |
| 10538 | abort (); |
| 10539 | if (rop >= 0) |
| 10540 | { |
| 10541 | ia64_free_opcode (idesc); |
| 10542 | idesc = ia64_find_opcode (mnemonic); |
| 10543 | while (idesc != NULL |
| 10544 | && (idesc->operands[0] != opnd1 |
| 10545 | || idesc->operands[1] != opnd2)) |
| 10546 | idesc = get_next_opcode (idesc); |
| 10547 | } |
| 10548 | } |
| 10549 | } |
| 10550 | else if (strcmp (idesc->name, "mov.i") == 0 |
| 10551 | || strcmp (idesc->name, "mov.m") == 0) |
| 10552 | { |
| 10553 | enum ia64_opnd opnd1, opnd2; |
| 10554 | int rop; |
| 10555 | |
| 10556 | opnd1 = idesc->operands[0]; |
| 10557 | opnd2 = idesc->operands[1]; |
| 10558 | if (opnd1 == IA64_OPND_AR3) |
| 10559 | rop = 0; |
| 10560 | else if (opnd2 == IA64_OPND_AR3) |
| 10561 | rop = 1; |
| 10562 | else |
| 10563 | abort (); |
| 10564 | if (CURR_SLOT.opnd[rop].X_op == O_register) |
| 10565 | { |
| 10566 | char unit = 'a'; |
| 10567 | if (ar_is_only_in_integer_unit (CURR_SLOT.opnd[rop].X_add_number)) |
| 10568 | unit = 'i'; |
| 10569 | else if (ar_is_only_in_memory_unit (CURR_SLOT.opnd[rop].X_add_number)) |
| 10570 | unit = 'm'; |
| 10571 | if (unit != 'a' && unit != idesc->name [4]) |
| 10572 | as_bad (_("AR %d can only be accessed by %c-unit"), |
| 10573 | (int) (CURR_SLOT.opnd[rop].X_add_number - REG_AR), |
| 10574 | TOUPPER (unit)); |
| 10575 | } |
| 10576 | } |
| 10577 | else if (strcmp (idesc->name, "hint.b") == 0) |
| 10578 | { |
| 10579 | switch (md.hint_b) |
| 10580 | { |
| 10581 | case hint_b_ok: |
| 10582 | break; |
| 10583 | case hint_b_warning: |
| 10584 | as_warn (_("hint.b may be treated as nop")); |
| 10585 | break; |
| 10586 | case hint_b_error: |
| 10587 | as_bad (_("hint.b shouldn't be used")); |
| 10588 | break; |
| 10589 | } |
| 10590 | } |
| 10591 | |
| 10592 | qp_regno = 0; |
| 10593 | if (md.qp.X_op == O_register) |
| 10594 | { |
| 10595 | qp_regno = md.qp.X_add_number - REG_P; |
| 10596 | md.qp.X_op = O_absent; |
| 10597 | } |
| 10598 | |
| 10599 | flags = idesc->flags; |
| 10600 | |
| 10601 | if ((flags & IA64_OPCODE_FIRST) != 0) |
| 10602 | { |
| 10603 | /* The alignment frag has to end with a stop bit only if the |
| 10604 | next instruction after the alignment directive has to be |
| 10605 | the first instruction in an instruction group. */ |
| 10606 | if (align_frag) |
| 10607 | { |
| 10608 | while (align_frag->fr_type != rs_align_code) |
| 10609 | { |
| 10610 | align_frag = align_frag->fr_next; |
| 10611 | if (!align_frag) |
| 10612 | break; |
| 10613 | } |
| 10614 | /* align_frag can be NULL if there are directives in |
| 10615 | between. */ |
| 10616 | if (align_frag && align_frag->fr_next == frag_now) |
| 10617 | align_frag->tc_frag_data = 1; |
| 10618 | } |
| 10619 | |
| 10620 | insn_group_break (1, 0, 0); |
| 10621 | } |
| 10622 | align_frag = NULL; |
| 10623 | |
| 10624 | if ((flags & IA64_OPCODE_NO_PRED) != 0 && qp_regno != 0) |
| 10625 | { |
| 10626 | as_bad (_("`%s' cannot be predicated"), idesc->name); |
| 10627 | goto done; |
| 10628 | } |
| 10629 | |
| 10630 | /* Build the instruction. */ |
| 10631 | CURR_SLOT.qp_regno = qp_regno; |
| 10632 | CURR_SLOT.idesc = idesc; |
| 10633 | as_where (&CURR_SLOT.src_file, &CURR_SLOT.src_line); |
| 10634 | dwarf2_where (&CURR_SLOT.debug_line); |
| 10635 | dwarf2_consume_line_info (); |
| 10636 | |
| 10637 | /* Add unwind entries, if there are any. */ |
| 10638 | if (unwind.current_entry) |
| 10639 | { |
| 10640 | CURR_SLOT.unwind_record = unwind.current_entry; |
| 10641 | unwind.current_entry = NULL; |
| 10642 | } |
| 10643 | if (unwind.pending_saves) |
| 10644 | { |
| 10645 | if (unwind.pending_saves->next) |
| 10646 | { |
| 10647 | /* Attach the next pending save to the next slot so that its |
| 10648 | slot number will get set correctly. */ |
| 10649 | add_unwind_entry (unwind.pending_saves->next, NOT_A_CHAR); |
| 10650 | unwind.pending_saves = &unwind.pending_saves->next->r.record.p; |
| 10651 | } |
| 10652 | else |
| 10653 | unwind.pending_saves = NULL; |
| 10654 | } |
| 10655 | if (unwind.proc_pending.sym && S_IS_DEFINED (unwind.proc_pending.sym)) |
| 10656 | unwind.insn = 1; |
| 10657 | |
| 10658 | /* Check for dependency violations. */ |
| 10659 | if (md.detect_dv) |
| 10660 | check_dv (idesc); |
| 10661 | |
| 10662 | md.curr_slot = (md.curr_slot + 1) % NUM_SLOTS; |
| 10663 | if (++md.num_slots_in_use >= NUM_SLOTS) |
| 10664 | emit_one_bundle (); |
| 10665 | |
| 10666 | if ((flags & IA64_OPCODE_LAST) != 0) |
| 10667 | insn_group_break (1, 0, 0); |
| 10668 | |
| 10669 | md.last_text_seg = now_seg; |
| 10670 | |
| 10671 | done: |
| 10672 | input_line_pointer = saved_input_line_pointer; |
| 10673 | } |
| 10674 | |
| 10675 | /* Called when symbol NAME cannot be found in the symbol table. |
| 10676 | Should be used for dynamic valued symbols only. */ |
| 10677 | |
| 10678 | symbolS * |
| 10679 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) |
| 10680 | { |
| 10681 | return 0; |
| 10682 | } |
| 10683 | |
| 10684 | /* Called for any expression that can not be recognized. When the |
| 10685 | function is called, `input_line_pointer' will point to the start of |
| 10686 | the expression. */ |
| 10687 | |
| 10688 | void |
| 10689 | md_operand (expressionS *e) |
| 10690 | { |
| 10691 | switch (*input_line_pointer) |
| 10692 | { |
| 10693 | case '[': |
| 10694 | ++input_line_pointer; |
| 10695 | expression_and_evaluate (e); |
| 10696 | if (*input_line_pointer != ']') |
| 10697 | { |
| 10698 | as_bad (_("Closing bracket missing")); |
| 10699 | goto err; |
| 10700 | } |
| 10701 | else |
| 10702 | { |
| 10703 | if (e->X_op != O_register |
| 10704 | || e->X_add_number < REG_GR |
| 10705 | || e->X_add_number > REG_GR + 127) |
| 10706 | { |
| 10707 | as_bad (_("Index must be a general register")); |
| 10708 | e->X_add_number = REG_GR; |
| 10709 | } |
| 10710 | |
| 10711 | ++input_line_pointer; |
| 10712 | e->X_op = O_index; |
| 10713 | } |
| 10714 | break; |
| 10715 | |
| 10716 | default: |
| 10717 | break; |
| 10718 | } |
| 10719 | return; |
| 10720 | |
| 10721 | err: |
| 10722 | ignore_rest_of_line (); |
| 10723 | } |
| 10724 | |
| 10725 | /* Return 1 if it's OK to adjust a reloc by replacing the symbol with |
| 10726 | a section symbol plus some offset. For relocs involving @fptr(), |
| 10727 | directives we don't want such adjustments since we need to have the |
| 10728 | original symbol's name in the reloc. */ |
| 10729 | int |
| 10730 | ia64_fix_adjustable (fixS *fix) |
| 10731 | { |
| 10732 | /* Prevent all adjustments to global symbols */ |
| 10733 | if (S_IS_EXTERNAL (fix->fx_addsy) || S_IS_WEAK (fix->fx_addsy)) |
| 10734 | return 0; |
| 10735 | |
| 10736 | switch (fix->fx_r_type) |
| 10737 | { |
| 10738 | case BFD_RELOC_IA64_FPTR64I: |
| 10739 | case BFD_RELOC_IA64_FPTR32MSB: |
| 10740 | case BFD_RELOC_IA64_FPTR32LSB: |
| 10741 | case BFD_RELOC_IA64_FPTR64MSB: |
| 10742 | case BFD_RELOC_IA64_FPTR64LSB: |
| 10743 | case BFD_RELOC_IA64_LTOFF_FPTR22: |
| 10744 | case BFD_RELOC_IA64_LTOFF_FPTR64I: |
| 10745 | return 0; |
| 10746 | default: |
| 10747 | break; |
| 10748 | } |
| 10749 | |
| 10750 | return 1; |
| 10751 | } |
| 10752 | |
| 10753 | int |
| 10754 | ia64_force_relocation (fixS *fix) |
| 10755 | { |
| 10756 | switch (fix->fx_r_type) |
| 10757 | { |
| 10758 | case BFD_RELOC_IA64_FPTR64I: |
| 10759 | case BFD_RELOC_IA64_FPTR32MSB: |
| 10760 | case BFD_RELOC_IA64_FPTR32LSB: |
| 10761 | case BFD_RELOC_IA64_FPTR64MSB: |
| 10762 | case BFD_RELOC_IA64_FPTR64LSB: |
| 10763 | |
| 10764 | case BFD_RELOC_IA64_LTOFF22: |
| 10765 | case BFD_RELOC_IA64_LTOFF64I: |
| 10766 | case BFD_RELOC_IA64_LTOFF_FPTR22: |
| 10767 | case BFD_RELOC_IA64_LTOFF_FPTR64I: |
| 10768 | case BFD_RELOC_IA64_PLTOFF22: |
| 10769 | case BFD_RELOC_IA64_PLTOFF64I: |
| 10770 | case BFD_RELOC_IA64_PLTOFF64MSB: |
| 10771 | case BFD_RELOC_IA64_PLTOFF64LSB: |
| 10772 | |
| 10773 | case BFD_RELOC_IA64_LTOFF22X: |
| 10774 | case BFD_RELOC_IA64_LDXMOV: |
| 10775 | return 1; |
| 10776 | |
| 10777 | default: |
| 10778 | break; |
| 10779 | } |
| 10780 | |
| 10781 | return generic_force_reloc (fix); |
| 10782 | } |
| 10783 | |
| 10784 | /* Decide from what point a pc-relative relocation is relative to, |
| 10785 | relative to the pc-relative fixup. Er, relatively speaking. */ |
| 10786 | long |
| 10787 | ia64_pcrel_from_section (fixS *fix, segT sec) |
| 10788 | { |
| 10789 | unsigned long off = fix->fx_frag->fr_address + fix->fx_where; |
| 10790 | |
| 10791 | if (bfd_get_section_flags (stdoutput, sec) & SEC_CODE) |
| 10792 | off &= ~0xfUL; |
| 10793 | |
| 10794 | return off; |
| 10795 | } |
| 10796 | |
| 10797 | |
| 10798 | /* Used to emit section-relative relocs for the dwarf2 debug data. */ |
| 10799 | void |
| 10800 | ia64_dwarf2_emit_offset (symbolS *symbol, unsigned int size) |
| 10801 | { |
| 10802 | expressionS exp; |
| 10803 | |
| 10804 | exp.X_op = O_pseudo_fixup; |
| 10805 | exp.X_op_symbol = pseudo_func[FUNC_SEC_RELATIVE].u.sym; |
| 10806 | exp.X_add_number = 0; |
| 10807 | exp.X_add_symbol = symbol; |
| 10808 | emit_expr (&exp, size); |
| 10809 | } |
| 10810 | |
| 10811 | /* This is called whenever some data item (not an instruction) needs a |
| 10812 | fixup. We pick the right reloc code depending on the byteorder |
| 10813 | currently in effect. */ |
| 10814 | void |
| 10815 | ia64_cons_fix_new (fragS *f, int where, int nbytes, expressionS *exp) |
| 10816 | { |
| 10817 | bfd_reloc_code_real_type code; |
| 10818 | fixS *fix; |
| 10819 | |
| 10820 | switch (nbytes) |
| 10821 | { |
| 10822 | /* There are no reloc for 8 and 16 bit quantities, but we allow |
| 10823 | them here since they will work fine as long as the expression |
| 10824 | is fully defined at the end of the pass over the source file. */ |
| 10825 | case 1: code = BFD_RELOC_8; break; |
| 10826 | case 2: code = BFD_RELOC_16; break; |
| 10827 | case 4: |
| 10828 | if (target_big_endian) |
| 10829 | code = BFD_RELOC_IA64_DIR32MSB; |
| 10830 | else |
| 10831 | code = BFD_RELOC_IA64_DIR32LSB; |
| 10832 | break; |
| 10833 | |
| 10834 | case 8: |
| 10835 | /* In 32-bit mode, data8 could mean function descriptors too. */ |
| 10836 | if (exp->X_op == O_pseudo_fixup |
| 10837 | && exp->X_op_symbol |
| 10838 | && S_GET_VALUE (exp->X_op_symbol) == FUNC_IPLT_RELOC |
| 10839 | && !(md.flags & EF_IA_64_ABI64)) |
| 10840 | { |
| 10841 | if (target_big_endian) |
| 10842 | code = BFD_RELOC_IA64_IPLTMSB; |
| 10843 | else |
| 10844 | code = BFD_RELOC_IA64_IPLTLSB; |
| 10845 | exp->X_op = O_symbol; |
| 10846 | break; |
| 10847 | } |
| 10848 | else |
| 10849 | { |
| 10850 | if (target_big_endian) |
| 10851 | code = BFD_RELOC_IA64_DIR64MSB; |
| 10852 | else |
| 10853 | code = BFD_RELOC_IA64_DIR64LSB; |
| 10854 | break; |
| 10855 | } |
| 10856 | |
| 10857 | case 16: |
| 10858 | if (exp->X_op == O_pseudo_fixup |
| 10859 | && exp->X_op_symbol |
| 10860 | && S_GET_VALUE (exp->X_op_symbol) == FUNC_IPLT_RELOC) |
| 10861 | { |
| 10862 | if (target_big_endian) |
| 10863 | code = BFD_RELOC_IA64_IPLTMSB; |
| 10864 | else |
| 10865 | code = BFD_RELOC_IA64_IPLTLSB; |
| 10866 | exp->X_op = O_symbol; |
| 10867 | break; |
| 10868 | } |
| 10869 | /* FALLTHRU */ |
| 10870 | |
| 10871 | default: |
| 10872 | as_bad (_("Unsupported fixup size %d"), nbytes); |
| 10873 | ignore_rest_of_line (); |
| 10874 | return; |
| 10875 | } |
| 10876 | |
| 10877 | if (exp->X_op == O_pseudo_fixup) |
| 10878 | { |
| 10879 | exp->X_op = O_symbol; |
| 10880 | code = ia64_gen_real_reloc_type (exp->X_op_symbol, code); |
| 10881 | /* ??? If code unchanged, unsupported. */ |
| 10882 | } |
| 10883 | |
| 10884 | fix = fix_new_exp (f, where, nbytes, exp, 0, code); |
| 10885 | /* We need to store the byte order in effect in case we're going |
| 10886 | to fix an 8 or 16 bit relocation (for which there no real |
| 10887 | relocs available). See md_apply_fix(). */ |
| 10888 | fix->tc_fix_data.bigendian = target_big_endian; |
| 10889 | } |
| 10890 | |
| 10891 | /* Return the actual relocation we wish to associate with the pseudo |
| 10892 | reloc described by SYM and R_TYPE. SYM should be one of the |
| 10893 | symbols in the pseudo_func array, or NULL. */ |
| 10894 | |
| 10895 | static bfd_reloc_code_real_type |
| 10896 | ia64_gen_real_reloc_type (struct symbol *sym, bfd_reloc_code_real_type r_type) |
| 10897 | { |
| 10898 | bfd_reloc_code_real_type newr = 0; |
| 10899 | const char *type = NULL, *suffix = ""; |
| 10900 | |
| 10901 | if (sym == NULL) |
| 10902 | { |
| 10903 | return r_type; |
| 10904 | } |
| 10905 | |
| 10906 | switch (S_GET_VALUE (sym)) |
| 10907 | { |
| 10908 | case FUNC_FPTR_RELATIVE: |
| 10909 | switch (r_type) |
| 10910 | { |
| 10911 | case BFD_RELOC_IA64_IMM64: newr = BFD_RELOC_IA64_FPTR64I; break; |
| 10912 | case BFD_RELOC_IA64_DIR32MSB: newr = BFD_RELOC_IA64_FPTR32MSB; break; |
| 10913 | case BFD_RELOC_IA64_DIR32LSB: newr = BFD_RELOC_IA64_FPTR32LSB; break; |
| 10914 | case BFD_RELOC_IA64_DIR64MSB: newr = BFD_RELOC_IA64_FPTR64MSB; break; |
| 10915 | case BFD_RELOC_IA64_DIR64LSB: newr = BFD_RELOC_IA64_FPTR64LSB; break; |
| 10916 | default: type = "FPTR"; break; |
| 10917 | } |
| 10918 | break; |
| 10919 | |
| 10920 | case FUNC_GP_RELATIVE: |
| 10921 | switch (r_type) |
| 10922 | { |
| 10923 | case BFD_RELOC_IA64_IMM22: newr = BFD_RELOC_IA64_GPREL22; break; |
| 10924 | case BFD_RELOC_IA64_IMM64: newr = BFD_RELOC_IA64_GPREL64I; break; |
| 10925 | case BFD_RELOC_IA64_DIR32MSB: newr = BFD_RELOC_IA64_GPREL32MSB; break; |
| 10926 | case BFD_RELOC_IA64_DIR32LSB: newr = BFD_RELOC_IA64_GPREL32LSB; break; |
| 10927 | case BFD_RELOC_IA64_DIR64MSB: newr = BFD_RELOC_IA64_GPREL64MSB; break; |
| 10928 | case BFD_RELOC_IA64_DIR64LSB: newr = BFD_RELOC_IA64_GPREL64LSB; break; |
| 10929 | default: type = "GPREL"; break; |
| 10930 | } |
| 10931 | break; |
| 10932 | |
| 10933 | case FUNC_LT_RELATIVE: |
| 10934 | switch (r_type) |
| 10935 | { |
| 10936 | case BFD_RELOC_IA64_IMM22: newr = BFD_RELOC_IA64_LTOFF22; break; |
| 10937 | case BFD_RELOC_IA64_IMM64: newr = BFD_RELOC_IA64_LTOFF64I; break; |
| 10938 | default: type = "LTOFF"; break; |
| 10939 | } |
| 10940 | break; |
| 10941 | |
| 10942 | case FUNC_LT_RELATIVE_X: |
| 10943 | switch (r_type) |
| 10944 | { |
| 10945 | case BFD_RELOC_IA64_IMM22: newr = BFD_RELOC_IA64_LTOFF22X; break; |
| 10946 | default: type = "LTOFF"; suffix = "X"; break; |
| 10947 | } |
| 10948 | break; |
| 10949 | |
| 10950 | case FUNC_PC_RELATIVE: |
| 10951 | switch (r_type) |
| 10952 | { |
| 10953 | case BFD_RELOC_IA64_IMM22: newr = BFD_RELOC_IA64_PCREL22; break; |
| 10954 | case BFD_RELOC_IA64_IMM64: newr = BFD_RELOC_IA64_PCREL64I; break; |
| 10955 | case BFD_RELOC_IA64_DIR32MSB: newr = BFD_RELOC_IA64_PCREL32MSB; break; |
| 10956 | case BFD_RELOC_IA64_DIR32LSB: newr = BFD_RELOC_IA64_PCREL32LSB; break; |
| 10957 | case BFD_RELOC_IA64_DIR64MSB: newr = BFD_RELOC_IA64_PCREL64MSB; break; |
| 10958 | case BFD_RELOC_IA64_DIR64LSB: newr = BFD_RELOC_IA64_PCREL64LSB; break; |
| 10959 | default: type = "PCREL"; break; |
| 10960 | } |
| 10961 | break; |
| 10962 | |
| 10963 | case FUNC_PLT_RELATIVE: |
| 10964 | switch (r_type) |
| 10965 | { |
| 10966 | case BFD_RELOC_IA64_IMM22: newr = BFD_RELOC_IA64_PLTOFF22; break; |
| 10967 | case BFD_RELOC_IA64_IMM64: newr = BFD_RELOC_IA64_PLTOFF64I; break; |
| 10968 | case BFD_RELOC_IA64_DIR64MSB: newr = BFD_RELOC_IA64_PLTOFF64MSB;break; |
| 10969 | case BFD_RELOC_IA64_DIR64LSB: newr = BFD_RELOC_IA64_PLTOFF64LSB;break; |
| 10970 | default: type = "PLTOFF"; break; |
| 10971 | } |
| 10972 | break; |
| 10973 | |
| 10974 | case FUNC_SEC_RELATIVE: |
| 10975 | switch (r_type) |
| 10976 | { |
| 10977 | case BFD_RELOC_IA64_DIR32MSB: newr = BFD_RELOC_IA64_SECREL32MSB;break; |
| 10978 | case BFD_RELOC_IA64_DIR32LSB: newr = BFD_RELOC_IA64_SECREL32LSB;break; |
| 10979 | case BFD_RELOC_IA64_DIR64MSB: newr = BFD_RELOC_IA64_SECREL64MSB;break; |
| 10980 | case BFD_RELOC_IA64_DIR64LSB: newr = BFD_RELOC_IA64_SECREL64LSB;break; |
| 10981 | default: type = "SECREL"; break; |
| 10982 | } |
| 10983 | break; |
| 10984 | |
| 10985 | case FUNC_SEG_RELATIVE: |
| 10986 | switch (r_type) |
| 10987 | { |
| 10988 | case BFD_RELOC_IA64_DIR32MSB: newr = BFD_RELOC_IA64_SEGREL32MSB;break; |
| 10989 | case BFD_RELOC_IA64_DIR32LSB: newr = BFD_RELOC_IA64_SEGREL32LSB;break; |
| 10990 | case BFD_RELOC_IA64_DIR64MSB: newr = BFD_RELOC_IA64_SEGREL64MSB;break; |
| 10991 | case BFD_RELOC_IA64_DIR64LSB: newr = BFD_RELOC_IA64_SEGREL64LSB;break; |
| 10992 | default: type = "SEGREL"; break; |
| 10993 | } |
| 10994 | break; |
| 10995 | |
| 10996 | case FUNC_LTV_RELATIVE: |
| 10997 | switch (r_type) |
| 10998 | { |
| 10999 | case BFD_RELOC_IA64_DIR32MSB: newr = BFD_RELOC_IA64_LTV32MSB; break; |
| 11000 | case BFD_RELOC_IA64_DIR32LSB: newr = BFD_RELOC_IA64_LTV32LSB; break; |
| 11001 | case BFD_RELOC_IA64_DIR64MSB: newr = BFD_RELOC_IA64_LTV64MSB; break; |
| 11002 | case BFD_RELOC_IA64_DIR64LSB: newr = BFD_RELOC_IA64_LTV64LSB; break; |
| 11003 | default: type = "LTV"; break; |
| 11004 | } |
| 11005 | break; |
| 11006 | |
| 11007 | case FUNC_LT_FPTR_RELATIVE: |
| 11008 | switch (r_type) |
| 11009 | { |
| 11010 | case BFD_RELOC_IA64_IMM22: |
| 11011 | newr = BFD_RELOC_IA64_LTOFF_FPTR22; break; |
| 11012 | case BFD_RELOC_IA64_IMM64: |
| 11013 | newr = BFD_RELOC_IA64_LTOFF_FPTR64I; break; |
| 11014 | case BFD_RELOC_IA64_DIR32MSB: |
| 11015 | newr = BFD_RELOC_IA64_LTOFF_FPTR32MSB; break; |
| 11016 | case BFD_RELOC_IA64_DIR32LSB: |
| 11017 | newr = BFD_RELOC_IA64_LTOFF_FPTR32LSB; break; |
| 11018 | case BFD_RELOC_IA64_DIR64MSB: |
| 11019 | newr = BFD_RELOC_IA64_LTOFF_FPTR64MSB; break; |
| 11020 | case BFD_RELOC_IA64_DIR64LSB: |
| 11021 | newr = BFD_RELOC_IA64_LTOFF_FPTR64LSB; break; |
| 11022 | default: |
| 11023 | type = "LTOFF_FPTR"; break; |
| 11024 | } |
| 11025 | break; |
| 11026 | |
| 11027 | case FUNC_TP_RELATIVE: |
| 11028 | switch (r_type) |
| 11029 | { |
| 11030 | case BFD_RELOC_IA64_IMM14: newr = BFD_RELOC_IA64_TPREL14; break; |
| 11031 | case BFD_RELOC_IA64_IMM22: newr = BFD_RELOC_IA64_TPREL22; break; |
| 11032 | case BFD_RELOC_IA64_IMM64: newr = BFD_RELOC_IA64_TPREL64I; break; |
| 11033 | case BFD_RELOC_IA64_DIR64MSB: newr = BFD_RELOC_IA64_TPREL64MSB; break; |
| 11034 | case BFD_RELOC_IA64_DIR64LSB: newr = BFD_RELOC_IA64_TPREL64LSB; break; |
| 11035 | default: type = "TPREL"; break; |
| 11036 | } |
| 11037 | break; |
| 11038 | |
| 11039 | case FUNC_LT_TP_RELATIVE: |
| 11040 | switch (r_type) |
| 11041 | { |
| 11042 | case BFD_RELOC_IA64_IMM22: |
| 11043 | newr = BFD_RELOC_IA64_LTOFF_TPREL22; break; |
| 11044 | default: |
| 11045 | type = "LTOFF_TPREL"; break; |
| 11046 | } |
| 11047 | break; |
| 11048 | |
| 11049 | case FUNC_DTP_MODULE: |
| 11050 | switch (r_type) |
| 11051 | { |
| 11052 | case BFD_RELOC_IA64_DIR64MSB: |
| 11053 | newr = BFD_RELOC_IA64_DTPMOD64MSB; break; |
| 11054 | case BFD_RELOC_IA64_DIR64LSB: |
| 11055 | newr = BFD_RELOC_IA64_DTPMOD64LSB; break; |
| 11056 | default: |
| 11057 | type = "DTPMOD"; break; |
| 11058 | } |
| 11059 | break; |
| 11060 | |
| 11061 | case FUNC_LT_DTP_MODULE: |
| 11062 | switch (r_type) |
| 11063 | { |
| 11064 | case BFD_RELOC_IA64_IMM22: |
| 11065 | newr = BFD_RELOC_IA64_LTOFF_DTPMOD22; break; |
| 11066 | default: |
| 11067 | type = "LTOFF_DTPMOD"; break; |
| 11068 | } |
| 11069 | break; |
| 11070 | |
| 11071 | case FUNC_DTP_RELATIVE: |
| 11072 | switch (r_type) |
| 11073 | { |
| 11074 | case BFD_RELOC_IA64_DIR32MSB: |
| 11075 | newr = BFD_RELOC_IA64_DTPREL32MSB; break; |
| 11076 | case BFD_RELOC_IA64_DIR32LSB: |
| 11077 | newr = BFD_RELOC_IA64_DTPREL32LSB; break; |
| 11078 | case BFD_RELOC_IA64_DIR64MSB: |
| 11079 | newr = BFD_RELOC_IA64_DTPREL64MSB; break; |
| 11080 | case BFD_RELOC_IA64_DIR64LSB: |
| 11081 | newr = BFD_RELOC_IA64_DTPREL64LSB; break; |
| 11082 | case BFD_RELOC_IA64_IMM14: |
| 11083 | newr = BFD_RELOC_IA64_DTPREL14; break; |
| 11084 | case BFD_RELOC_IA64_IMM22: |
| 11085 | newr = BFD_RELOC_IA64_DTPREL22; break; |
| 11086 | case BFD_RELOC_IA64_IMM64: |
| 11087 | newr = BFD_RELOC_IA64_DTPREL64I; break; |
| 11088 | default: |
| 11089 | type = "DTPREL"; break; |
| 11090 | } |
| 11091 | break; |
| 11092 | |
| 11093 | case FUNC_LT_DTP_RELATIVE: |
| 11094 | switch (r_type) |
| 11095 | { |
| 11096 | case BFD_RELOC_IA64_IMM22: |
| 11097 | newr = BFD_RELOC_IA64_LTOFF_DTPREL22; break; |
| 11098 | default: |
| 11099 | type = "LTOFF_DTPREL"; break; |
| 11100 | } |
| 11101 | break; |
| 11102 | |
| 11103 | case FUNC_IPLT_RELOC: |
| 11104 | switch (r_type) |
| 11105 | { |
| 11106 | case BFD_RELOC_IA64_IPLTMSB: return r_type; |
| 11107 | case BFD_RELOC_IA64_IPLTLSB: return r_type; |
| 11108 | default: type = "IPLT"; break; |
| 11109 | } |
| 11110 | break; |
| 11111 | |
| 11112 | default: |
| 11113 | abort (); |
| 11114 | } |
| 11115 | |
| 11116 | if (newr) |
| 11117 | return newr; |
| 11118 | else |
| 11119 | { |
| 11120 | int width; |
| 11121 | |
| 11122 | if (!type) |
| 11123 | abort (); |
| 11124 | switch (r_type) |
| 11125 | { |
| 11126 | case BFD_RELOC_IA64_DIR32MSB: width = 32; suffix = "MSB"; break; |
| 11127 | case BFD_RELOC_IA64_DIR32LSB: width = 32; suffix = "LSB"; break; |
| 11128 | case BFD_RELOC_IA64_DIR64MSB: width = 64; suffix = "MSB"; break; |
| 11129 | case BFD_RELOC_IA64_DIR64LSB: width = 64; suffix = "LSB"; break; |
| 11130 | case BFD_RELOC_UNUSED: width = 13; break; |
| 11131 | case BFD_RELOC_IA64_IMM14: width = 14; break; |
| 11132 | case BFD_RELOC_IA64_IMM22: width = 22; break; |
| 11133 | case BFD_RELOC_IA64_IMM64: width = 64; suffix = "I"; break; |
| 11134 | default: abort (); |
| 11135 | } |
| 11136 | |
| 11137 | /* This should be an error, but since previously there wasn't any |
| 11138 | diagnostic here, don't make it fail because of this for now. */ |
| 11139 | as_warn (_("Cannot express %s%d%s relocation"), type, width, suffix); |
| 11140 | return r_type; |
| 11141 | } |
| 11142 | } |
| 11143 | |
| 11144 | /* Here is where generate the appropriate reloc for pseudo relocation |
| 11145 | functions. */ |
| 11146 | void |
| 11147 | ia64_validate_fix (fixS *fix) |
| 11148 | { |
| 11149 | switch (fix->fx_r_type) |
| 11150 | { |
| 11151 | case BFD_RELOC_IA64_FPTR64I: |
| 11152 | case BFD_RELOC_IA64_FPTR32MSB: |
| 11153 | case BFD_RELOC_IA64_FPTR64LSB: |
| 11154 | case BFD_RELOC_IA64_LTOFF_FPTR22: |
| 11155 | case BFD_RELOC_IA64_LTOFF_FPTR64I: |
| 11156 | if (fix->fx_offset != 0) |
| 11157 | as_bad_where (fix->fx_file, fix->fx_line, |
| 11158 | _("No addend allowed in @fptr() relocation")); |
| 11159 | break; |
| 11160 | default: |
| 11161 | break; |
| 11162 | } |
| 11163 | } |
| 11164 | |
| 11165 | static void |
| 11166 | fix_insn (fixS *fix, const struct ia64_operand *odesc, valueT value) |
| 11167 | { |
| 11168 | bfd_vma insn[3], t0, t1, control_bits; |
| 11169 | const char *err; |
| 11170 | char *fixpos; |
| 11171 | long slot; |
| 11172 | |
| 11173 | slot = fix->fx_where & 0x3; |
| 11174 | fixpos = fix->fx_frag->fr_literal + (fix->fx_where - slot); |
| 11175 | |
| 11176 | /* Bundles are always in little-endian byte order */ |
| 11177 | t0 = bfd_getl64 (fixpos); |
| 11178 | t1 = bfd_getl64 (fixpos + 8); |
| 11179 | control_bits = t0 & 0x1f; |
| 11180 | insn[0] = (t0 >> 5) & 0x1ffffffffffLL; |
| 11181 | insn[1] = ((t0 >> 46) & 0x3ffff) | ((t1 & 0x7fffff) << 18); |
| 11182 | insn[2] = (t1 >> 23) & 0x1ffffffffffLL; |
| 11183 | |
| 11184 | err = NULL; |
| 11185 | if (odesc - elf64_ia64_operands == IA64_OPND_IMMU64) |
| 11186 | { |
| 11187 | insn[1] = (value >> 22) & 0x1ffffffffffLL; |
| 11188 | insn[2] |= (((value & 0x7f) << 13) |
| 11189 | | (((value >> 7) & 0x1ff) << 27) |
| 11190 | | (((value >> 16) & 0x1f) << 22) |
| 11191 | | (((value >> 21) & 0x1) << 21) |
| 11192 | | (((value >> 63) & 0x1) << 36)); |
| 11193 | } |
| 11194 | else if (odesc - elf64_ia64_operands == IA64_OPND_IMMU62) |
| 11195 | { |
| 11196 | if (value & ~0x3fffffffffffffffULL) |
| 11197 | err = _("integer operand out of range"); |
| 11198 | insn[1] = (value >> 21) & 0x1ffffffffffLL; |
| 11199 | insn[2] |= (((value & 0xfffff) << 6) | (((value >> 20) & 0x1) << 36)); |
| 11200 | } |
| 11201 | else if (odesc - elf64_ia64_operands == IA64_OPND_TGT64) |
| 11202 | { |
| 11203 | value >>= 4; |
| 11204 | insn[1] = ((value >> 20) & 0x7fffffffffLL) << 2; |
| 11205 | insn[2] |= ((((value >> 59) & 0x1) << 36) |
| 11206 | | (((value >> 0) & 0xfffff) << 13)); |
| 11207 | } |
| 11208 | else |
| 11209 | err = (*odesc->insert) (odesc, value, insn + slot); |
| 11210 | |
| 11211 | if (err) |
| 11212 | as_bad_where (fix->fx_file, fix->fx_line, "%s", err); |
| 11213 | |
| 11214 | t0 = control_bits | (insn[0] << 5) | (insn[1] << 46); |
| 11215 | t1 = ((insn[1] >> 18) & 0x7fffff) | (insn[2] << 23); |
| 11216 | number_to_chars_littleendian (fixpos + 0, t0, 8); |
| 11217 | number_to_chars_littleendian (fixpos + 8, t1, 8); |
| 11218 | } |
| 11219 | |
| 11220 | /* Attempt to simplify or even eliminate a fixup. The return value is |
| 11221 | ignored; perhaps it was once meaningful, but now it is historical. |
| 11222 | To indicate that a fixup has been eliminated, set FIXP->FX_DONE. |
| 11223 | |
| 11224 | If fixp->fx_addsy is non-NULL, we'll have to generate a reloc entry |
| 11225 | (if possible). */ |
| 11226 | |
| 11227 | void |
| 11228 | md_apply_fix (fixS *fix, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
| 11229 | { |
| 11230 | char *fixpos; |
| 11231 | valueT value = *valP; |
| 11232 | |
| 11233 | fixpos = fix->fx_frag->fr_literal + fix->fx_where; |
| 11234 | |
| 11235 | if (fix->fx_pcrel) |
| 11236 | { |
| 11237 | switch (fix->fx_r_type) |
| 11238 | { |
| 11239 | case BFD_RELOC_IA64_PCREL21B: break; |
| 11240 | case BFD_RELOC_IA64_PCREL21BI: break; |
| 11241 | case BFD_RELOC_IA64_PCREL21F: break; |
| 11242 | case BFD_RELOC_IA64_PCREL21M: break; |
| 11243 | case BFD_RELOC_IA64_PCREL60B: break; |
| 11244 | case BFD_RELOC_IA64_PCREL22: break; |
| 11245 | case BFD_RELOC_IA64_PCREL64I: break; |
| 11246 | case BFD_RELOC_IA64_PCREL32MSB: break; |
| 11247 | case BFD_RELOC_IA64_PCREL32LSB: break; |
| 11248 | case BFD_RELOC_IA64_PCREL64MSB: break; |
| 11249 | case BFD_RELOC_IA64_PCREL64LSB: break; |
| 11250 | default: |
| 11251 | fix->fx_r_type = ia64_gen_real_reloc_type (pseudo_func[FUNC_PC_RELATIVE].u.sym, |
| 11252 | fix->fx_r_type); |
| 11253 | break; |
| 11254 | } |
| 11255 | } |
| 11256 | if (fix->fx_addsy) |
| 11257 | { |
| 11258 | switch (fix->fx_r_type) |
| 11259 | { |
| 11260 | case BFD_RELOC_UNUSED: |
| 11261 | /* This must be a TAG13 or TAG13b operand. There are no external |
| 11262 | relocs defined for them, so we must give an error. */ |
| 11263 | as_bad_where (fix->fx_file, fix->fx_line, |
| 11264 | _("%s must have a constant value"), |
| 11265 | elf64_ia64_operands[fix->tc_fix_data.opnd].desc); |
| 11266 | fix->fx_done = 1; |
| 11267 | return; |
| 11268 | |
| 11269 | case BFD_RELOC_IA64_TPREL14: |
| 11270 | case BFD_RELOC_IA64_TPREL22: |
| 11271 | case BFD_RELOC_IA64_TPREL64I: |
| 11272 | case BFD_RELOC_IA64_LTOFF_TPREL22: |
| 11273 | case BFD_RELOC_IA64_LTOFF_DTPMOD22: |
| 11274 | case BFD_RELOC_IA64_DTPREL14: |
| 11275 | case BFD_RELOC_IA64_DTPREL22: |
| 11276 | case BFD_RELOC_IA64_DTPREL64I: |
| 11277 | case BFD_RELOC_IA64_LTOFF_DTPREL22: |
| 11278 | S_SET_THREAD_LOCAL (fix->fx_addsy); |
| 11279 | break; |
| 11280 | |
| 11281 | default: |
| 11282 | break; |
| 11283 | } |
| 11284 | } |
| 11285 | else if (fix->tc_fix_data.opnd == IA64_OPND_NIL) |
| 11286 | { |
| 11287 | if (fix->tc_fix_data.bigendian) |
| 11288 | number_to_chars_bigendian (fixpos, value, fix->fx_size); |
| 11289 | else |
| 11290 | number_to_chars_littleendian (fixpos, value, fix->fx_size); |
| 11291 | fix->fx_done = 1; |
| 11292 | } |
| 11293 | else |
| 11294 | { |
| 11295 | fix_insn (fix, elf64_ia64_operands + fix->tc_fix_data.opnd, value); |
| 11296 | fix->fx_done = 1; |
| 11297 | } |
| 11298 | } |
| 11299 | |
| 11300 | /* Generate the BFD reloc to be stuck in the object file from the |
| 11301 | fixup used internally in the assembler. */ |
| 11302 | |
| 11303 | arelent * |
| 11304 | tc_gen_reloc (asection *sec ATTRIBUTE_UNUSED, fixS *fixp) |
| 11305 | { |
| 11306 | arelent *reloc; |
| 11307 | |
| 11308 | reloc = xmalloc (sizeof (*reloc)); |
| 11309 | reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *)); |
| 11310 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
| 11311 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
| 11312 | reloc->addend = fixp->fx_offset; |
| 11313 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); |
| 11314 | |
| 11315 | if (!reloc->howto) |
| 11316 | { |
| 11317 | as_bad_where (fixp->fx_file, fixp->fx_line, |
| 11318 | _("Cannot represent %s relocation in object file"), |
| 11319 | bfd_get_reloc_code_name (fixp->fx_r_type)); |
| 11320 | free (reloc); |
| 11321 | return NULL; |
| 11322 | } |
| 11323 | return reloc; |
| 11324 | } |
| 11325 | |
| 11326 | /* Turn a string in input_line_pointer into a floating point constant |
| 11327 | of type TYPE, and store the appropriate bytes in *LIT. The number |
| 11328 | of LITTLENUMS emitted is stored in *SIZE. An error message is |
| 11329 | returned, or NULL on OK. */ |
| 11330 | |
| 11331 | #define MAX_LITTLENUMS 5 |
| 11332 | |
| 11333 | char * |
| 11334 | md_atof (int type, char *lit, int *size) |
| 11335 | { |
| 11336 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; |
| 11337 | char *t; |
| 11338 | int prec; |
| 11339 | |
| 11340 | switch (type) |
| 11341 | { |
| 11342 | /* IEEE floats */ |
| 11343 | case 'f': |
| 11344 | case 'F': |
| 11345 | case 's': |
| 11346 | case 'S': |
| 11347 | prec = 2; |
| 11348 | break; |
| 11349 | |
| 11350 | case 'd': |
| 11351 | case 'D': |
| 11352 | case 'r': |
| 11353 | case 'R': |
| 11354 | prec = 4; |
| 11355 | break; |
| 11356 | |
| 11357 | case 'x': |
| 11358 | case 'X': |
| 11359 | case 'p': |
| 11360 | case 'P': |
| 11361 | prec = 5; |
| 11362 | break; |
| 11363 | |
| 11364 | default: |
| 11365 | *size = 0; |
| 11366 | return _("Unrecognized or unsupported floating point constant"); |
| 11367 | } |
| 11368 | t = atof_ieee (input_line_pointer, type, words); |
| 11369 | if (t) |
| 11370 | input_line_pointer = t; |
| 11371 | |
| 11372 | (*ia64_float_to_chars) (lit, words, prec); |
| 11373 | |
| 11374 | if (type == 'X') |
| 11375 | { |
| 11376 | /* It is 10 byte floating point with 6 byte padding. */ |
| 11377 | memset (&lit [10], 0, 6); |
| 11378 | *size = 8 * sizeof (LITTLENUM_TYPE); |
| 11379 | } |
| 11380 | else |
| 11381 | *size = prec * sizeof (LITTLENUM_TYPE); |
| 11382 | |
| 11383 | return NULL; |
| 11384 | } |
| 11385 | |
| 11386 | /* Handle ia64 specific semantics of the align directive. */ |
| 11387 | |
| 11388 | void |
| 11389 | ia64_md_do_align (int n ATTRIBUTE_UNUSED, |
| 11390 | const char *fill ATTRIBUTE_UNUSED, |
| 11391 | int len ATTRIBUTE_UNUSED, |
| 11392 | int max ATTRIBUTE_UNUSED) |
| 11393 | { |
| 11394 | if (subseg_text_p (now_seg)) |
| 11395 | ia64_flush_insns (); |
| 11396 | } |
| 11397 | |
| 11398 | /* This is called from HANDLE_ALIGN in write.c. Fill in the contents |
| 11399 | of an rs_align_code fragment. */ |
| 11400 | |
| 11401 | void |
| 11402 | ia64_handle_align (fragS *fragp) |
| 11403 | { |
| 11404 | int bytes; |
| 11405 | char *p; |
| 11406 | const unsigned char *nop_type; |
| 11407 | |
| 11408 | if (fragp->fr_type != rs_align_code) |
| 11409 | return; |
| 11410 | |
| 11411 | /* Check if this frag has to end with a stop bit. */ |
| 11412 | nop_type = fragp->tc_frag_data ? le_nop_stop : le_nop; |
| 11413 | |
| 11414 | bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix; |
| 11415 | p = fragp->fr_literal + fragp->fr_fix; |
| 11416 | |
| 11417 | /* If no paddings are needed, we check if we need a stop bit. */ |
| 11418 | if (!bytes && fragp->tc_frag_data) |
| 11419 | { |
| 11420 | if (fragp->fr_fix < 16) |
| 11421 | #if 1 |
| 11422 | /* FIXME: It won't work with |
| 11423 | .align 16 |
| 11424 | alloc r32=ar.pfs,1,2,4,0 |
| 11425 | */ |
| 11426 | ; |
| 11427 | #else |
| 11428 | as_bad_where (fragp->fr_file, fragp->fr_line, |
| 11429 | _("Can't add stop bit to mark end of instruction group")); |
| 11430 | #endif |
| 11431 | else |
| 11432 | /* Bundles are always in little-endian byte order. Make sure |
| 11433 | the previous bundle has the stop bit. */ |
| 11434 | *(p - 16) |= 1; |
| 11435 | } |
| 11436 | |
| 11437 | /* Make sure we are on a 16-byte boundary, in case someone has been |
| 11438 | putting data into a text section. */ |
| 11439 | if (bytes & 15) |
| 11440 | { |
| 11441 | int fix = bytes & 15; |
| 11442 | memset (p, 0, fix); |
| 11443 | p += fix; |
| 11444 | bytes -= fix; |
| 11445 | fragp->fr_fix += fix; |
| 11446 | } |
| 11447 | |
| 11448 | /* Instruction bundles are always little-endian. */ |
| 11449 | memcpy (p, nop_type, 16); |
| 11450 | fragp->fr_var = 16; |
| 11451 | } |
| 11452 | |
| 11453 | static void |
| 11454 | ia64_float_to_chars_bigendian (char *lit, LITTLENUM_TYPE *words, |
| 11455 | int prec) |
| 11456 | { |
| 11457 | while (prec--) |
| 11458 | { |
| 11459 | number_to_chars_bigendian (lit, (long) (*words++), |
| 11460 | sizeof (LITTLENUM_TYPE)); |
| 11461 | lit += sizeof (LITTLENUM_TYPE); |
| 11462 | } |
| 11463 | } |
| 11464 | |
| 11465 | static void |
| 11466 | ia64_float_to_chars_littleendian (char *lit, LITTLENUM_TYPE *words, |
| 11467 | int prec) |
| 11468 | { |
| 11469 | while (prec--) |
| 11470 | { |
| 11471 | number_to_chars_littleendian (lit, (long) (words[prec]), |
| 11472 | sizeof (LITTLENUM_TYPE)); |
| 11473 | lit += sizeof (LITTLENUM_TYPE); |
| 11474 | } |
| 11475 | } |
| 11476 | |
| 11477 | void |
| 11478 | ia64_elf_section_change_hook (void) |
| 11479 | { |
| 11480 | if (elf_section_type (now_seg) == SHT_IA_64_UNWIND |
| 11481 | && elf_linked_to_section (now_seg) == NULL) |
| 11482 | elf_linked_to_section (now_seg) = text_section; |
| 11483 | dot_byteorder (-1); |
| 11484 | } |
| 11485 | |
| 11486 | /* Check if a label should be made global. */ |
| 11487 | void |
| 11488 | ia64_check_label (symbolS *label) |
| 11489 | { |
| 11490 | if (*input_line_pointer == ':') |
| 11491 | { |
| 11492 | S_SET_EXTERNAL (label); |
| 11493 | input_line_pointer++; |
| 11494 | } |
| 11495 | } |
| 11496 | |
| 11497 | /* Used to remember where .alias and .secalias directives are seen. We |
| 11498 | will rename symbol and section names when we are about to output |
| 11499 | the relocatable file. */ |
| 11500 | struct alias |
| 11501 | { |
| 11502 | char *file; /* The file where the directive is seen. */ |
| 11503 | unsigned int line; /* The line number the directive is at. */ |
| 11504 | const char *name; /* The original name of the symbol. */ |
| 11505 | }; |
| 11506 | |
| 11507 | /* Called for .alias and .secalias directives. If SECTION is 1, it is |
| 11508 | .secalias. Otherwise, it is .alias. */ |
| 11509 | static void |
| 11510 | dot_alias (int section) |
| 11511 | { |
| 11512 | char *name, *alias; |
| 11513 | char delim; |
| 11514 | char *end_name; |
| 11515 | int len; |
| 11516 | const char *error_string; |
| 11517 | struct alias *h; |
| 11518 | const char *a; |
| 11519 | struct hash_control *ahash, *nhash; |
| 11520 | const char *kind; |
| 11521 | |
| 11522 | name = input_line_pointer; |
| 11523 | delim = get_symbol_end (); |
| 11524 | end_name = input_line_pointer; |
| 11525 | *end_name = delim; |
| 11526 | |
| 11527 | if (name == end_name) |
| 11528 | { |
| 11529 | as_bad (_("expected symbol name")); |
| 11530 | ignore_rest_of_line (); |
| 11531 | return; |
| 11532 | } |
| 11533 | |
| 11534 | SKIP_WHITESPACE (); |
| 11535 | |
| 11536 | if (*input_line_pointer != ',') |
| 11537 | { |
| 11538 | *end_name = 0; |
| 11539 | as_bad (_("expected comma after \"%s\""), name); |
| 11540 | *end_name = delim; |
| 11541 | ignore_rest_of_line (); |
| 11542 | return; |
| 11543 | } |
| 11544 | |
| 11545 | input_line_pointer++; |
| 11546 | *end_name = 0; |
| 11547 | ia64_canonicalize_symbol_name (name); |
| 11548 | |
| 11549 | /* We call demand_copy_C_string to check if alias string is valid. |
| 11550 | There should be a closing `"' and no `\0' in the string. */ |
| 11551 | alias = demand_copy_C_string (&len); |
| 11552 | if (alias == NULL) |
| 11553 | { |
| 11554 | ignore_rest_of_line (); |
| 11555 | return; |
| 11556 | } |
| 11557 | |
| 11558 | /* Make a copy of name string. */ |
| 11559 | len = strlen (name) + 1; |
| 11560 | obstack_grow (¬es, name, len); |
| 11561 | name = obstack_finish (¬es); |
| 11562 | |
| 11563 | if (section) |
| 11564 | { |
| 11565 | kind = "section"; |
| 11566 | ahash = secalias_hash; |
| 11567 | nhash = secalias_name_hash; |
| 11568 | } |
| 11569 | else |
| 11570 | { |
| 11571 | kind = "symbol"; |
| 11572 | ahash = alias_hash; |
| 11573 | nhash = alias_name_hash; |
| 11574 | } |
| 11575 | |
| 11576 | /* Check if alias has been used before. */ |
| 11577 | h = (struct alias *) hash_find (ahash, alias); |
| 11578 | if (h) |
| 11579 | { |
| 11580 | if (strcmp (h->name, name)) |
| 11581 | as_bad (_("`%s' is already the alias of %s `%s'"), |
| 11582 | alias, kind, h->name); |
| 11583 | goto out; |
| 11584 | } |
| 11585 | |
| 11586 | /* Check if name already has an alias. */ |
| 11587 | a = (const char *) hash_find (nhash, name); |
| 11588 | if (a) |
| 11589 | { |
| 11590 | if (strcmp (a, alias)) |
| 11591 | as_bad (_("%s `%s' already has an alias `%s'"), kind, name, a); |
| 11592 | goto out; |
| 11593 | } |
| 11594 | |
| 11595 | h = (struct alias *) xmalloc (sizeof (struct alias)); |
| 11596 | as_where (&h->file, &h->line); |
| 11597 | h->name = name; |
| 11598 | |
| 11599 | error_string = hash_jam (ahash, alias, (void *) h); |
| 11600 | if (error_string) |
| 11601 | { |
| 11602 | as_fatal (_("inserting \"%s\" into %s alias hash table failed: %s"), |
| 11603 | alias, kind, error_string); |
| 11604 | goto out; |
| 11605 | } |
| 11606 | |
| 11607 | error_string = hash_jam (nhash, name, (void *) alias); |
| 11608 | if (error_string) |
| 11609 | { |
| 11610 | as_fatal (_("inserting \"%s\" into %s name hash table failed: %s"), |
| 11611 | alias, kind, error_string); |
| 11612 | out: |
| 11613 | obstack_free (¬es, name); |
| 11614 | obstack_free (¬es, alias); |
| 11615 | } |
| 11616 | |
| 11617 | demand_empty_rest_of_line (); |
| 11618 | } |
| 11619 | |
| 11620 | /* It renames the original symbol name to its alias. */ |
| 11621 | static void |
| 11622 | do_alias (const char *alias, void *value) |
| 11623 | { |
| 11624 | struct alias *h = (struct alias *) value; |
| 11625 | symbolS *sym = symbol_find (h->name); |
| 11626 | |
| 11627 | if (sym == NULL) |
| 11628 | { |
| 11629 | #ifdef TE_VMS |
| 11630 | /* Uses .alias extensively to alias CRTL functions to same with |
| 11631 | decc$ prefix. Sometimes function gets optimized away and a |
| 11632 | warning results, which should be suppressed. */ |
| 11633 | if (strncmp (alias, "decc$", 5) != 0) |
| 11634 | #endif |
| 11635 | as_warn_where (h->file, h->line, |
| 11636 | _("symbol `%s' aliased to `%s' is not used"), |
| 11637 | h->name, alias); |
| 11638 | } |
| 11639 | else |
| 11640 | S_SET_NAME (sym, (char *) alias); |
| 11641 | } |
| 11642 | |
| 11643 | /* Called from write_object_file. */ |
| 11644 | void |
| 11645 | ia64_adjust_symtab (void) |
| 11646 | { |
| 11647 | hash_traverse (alias_hash, do_alias); |
| 11648 | } |
| 11649 | |
| 11650 | /* It renames the original section name to its alias. */ |
| 11651 | static void |
| 11652 | do_secalias (const char *alias, void *value) |
| 11653 | { |
| 11654 | struct alias *h = (struct alias *) value; |
| 11655 | segT sec = bfd_get_section_by_name (stdoutput, h->name); |
| 11656 | |
| 11657 | if (sec == NULL) |
| 11658 | as_warn_where (h->file, h->line, |
| 11659 | _("section `%s' aliased to `%s' is not used"), |
| 11660 | h->name, alias); |
| 11661 | else |
| 11662 | sec->name = alias; |
| 11663 | } |
| 11664 | |
| 11665 | /* Called from write_object_file. */ |
| 11666 | void |
| 11667 | ia64_frob_file (void) |
| 11668 | { |
| 11669 | hash_traverse (secalias_hash, do_secalias); |
| 11670 | } |
| 11671 | |
| 11672 | #ifdef TE_VMS |
| 11673 | #define NT_VMS_MHD 1 |
| 11674 | #define NT_VMS_LNM 2 |
| 11675 | |
| 11676 | /* Integrity VMS 8.x identifies it's ELF modules with a standard ELF |
| 11677 | .note section. */ |
| 11678 | |
| 11679 | /* Manufacture a VMS-like time string. */ |
| 11680 | static void |
| 11681 | get_vms_time (char *Now) |
| 11682 | { |
| 11683 | char *pnt; |
| 11684 | time_t timeb; |
| 11685 | |
| 11686 | time (&timeb); |
| 11687 | pnt = ctime (&timeb); |
| 11688 | pnt[3] = 0; |
| 11689 | pnt[7] = 0; |
| 11690 | pnt[10] = 0; |
| 11691 | pnt[16] = 0; |
| 11692 | pnt[24] = 0; |
| 11693 | sprintf (Now, "%2s-%3s-%s %s", pnt + 8, pnt + 4, pnt + 20, pnt + 11); |
| 11694 | } |
| 11695 | |
| 11696 | void |
| 11697 | ia64_vms_note (void) |
| 11698 | { |
| 11699 | char *p; |
| 11700 | asection *seg = now_seg; |
| 11701 | subsegT subseg = now_subseg; |
| 11702 | Elf_Internal_Note i_note; |
| 11703 | asection *secp = NULL; |
| 11704 | char *bname; |
| 11705 | char buf [256]; |
| 11706 | symbolS *sym; |
| 11707 | |
| 11708 | /* Create the .note section. */ |
| 11709 | |
| 11710 | secp = subseg_new (".note", 0); |
| 11711 | bfd_set_section_flags (stdoutput, |
| 11712 | secp, |
| 11713 | SEC_HAS_CONTENTS | SEC_READONLY); |
| 11714 | |
| 11715 | /* Module header note. */ |
| 11716 | bname = xstrdup (lbasename (out_file_name)); |
| 11717 | if ((p = strrchr (bname, '.'))) |
| 11718 | *p = '\0'; |
| 11719 | |
| 11720 | i_note.namesz = 8; |
| 11721 | i_note.descsz = 40 + strlen (bname); |
| 11722 | i_note.type = NT_VMS_MHD; |
| 11723 | |
| 11724 | p = frag_more (sizeof (i_note.namesz)); |
| 11725 | number_to_chars_littleendian (p, i_note.namesz, 8); |
| 11726 | |
| 11727 | p = frag_more (sizeof (i_note.descsz)); |
| 11728 | number_to_chars_littleendian (p, i_note.descsz, 8); |
| 11729 | |
| 11730 | p = frag_more (sizeof (i_note.type)); |
| 11731 | number_to_chars_littleendian (p, i_note.type, 8); |
| 11732 | |
| 11733 | p = frag_more (8); |
| 11734 | strcpy (p, "IPF/VMS"); |
| 11735 | |
| 11736 | get_vms_time (buf); |
| 11737 | p = frag_more (17); |
| 11738 | strcpy (p, buf); |
| 11739 | |
| 11740 | p = frag_more (17); |
| 11741 | strcpy (p, "24-FEB-2005 15:00"); |
| 11742 | |
| 11743 | p = frag_more (strlen (bname) + 1); |
| 11744 | strcpy (p, bname); |
| 11745 | free (bname); |
| 11746 | |
| 11747 | p = frag_more (5); |
| 11748 | strcpy (p, "V1.0"); |
| 11749 | |
| 11750 | frag_align (3, 0, 0); |
| 11751 | |
| 11752 | /* Language processor name note. */ |
| 11753 | sprintf (buf, "GNU assembler version %s (%s) using BFD version %s", |
| 11754 | VERSION, TARGET_ALIAS, BFD_VERSION_STRING); |
| 11755 | |
| 11756 | i_note.namesz = 8; |
| 11757 | i_note.descsz = 1 + strlen (buf); |
| 11758 | i_note.type = NT_VMS_LNM; |
| 11759 | |
| 11760 | p = frag_more (sizeof (i_note.namesz)); |
| 11761 | number_to_chars_littleendian (p, i_note.namesz, 8); |
| 11762 | |
| 11763 | p = frag_more (sizeof (i_note.descsz)); |
| 11764 | number_to_chars_littleendian (p, i_note.descsz, 8); |
| 11765 | |
| 11766 | p = frag_more (sizeof (i_note.type)); |
| 11767 | number_to_chars_littleendian (p, i_note.type, 8); |
| 11768 | |
| 11769 | p = frag_more (8); |
| 11770 | strcpy (p, "IPF/VMS"); |
| 11771 | |
| 11772 | p = frag_more (strlen (buf) + 1); |
| 11773 | strcpy (p, buf); |
| 11774 | |
| 11775 | frag_align (3, 0, 0); |
| 11776 | |
| 11777 | secp = subseg_new (".vms_display_name_info", 0); |
| 11778 | bfd_set_section_flags (stdoutput, |
| 11779 | secp, |
| 11780 | SEC_HAS_CONTENTS | SEC_READONLY); |
| 11781 | |
| 11782 | /* This symbol should be passed on the command line and be variable |
| 11783 | according to language. */ |
| 11784 | sym = symbol_new ("__gnat_vms_display_name@gnat_demangler_rtl", |
| 11785 | absolute_section, 0, &zero_address_frag); |
| 11786 | symbol_table_insert (sym); |
| 11787 | symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING | BSF_DYNAMIC; |
| 11788 | |
| 11789 | p = frag_more (4); |
| 11790 | /* Format 3 of VMS demangler Spec. */ |
| 11791 | number_to_chars_littleendian (p, 3, 4); |
| 11792 | |
| 11793 | p = frag_more (4); |
| 11794 | /* Place holder for symbol table index of above symbol. */ |
| 11795 | number_to_chars_littleendian (p, -1, 4); |
| 11796 | |
| 11797 | frag_align (3, 0, 0); |
| 11798 | |
| 11799 | /* We probably can't restore the current segment, for there likely |
| 11800 | isn't one yet... */ |
| 11801 | if (seg && subseg) |
| 11802 | subseg_set (seg, subseg); |
| 11803 | } |
| 11804 | |
| 11805 | #endif /* TE_VMS */ |