gdb/config/pa/tm-hppa64.h

   1 /* Parameters for execution on any Hewlett-Packard PA-RISC machine.
   2    Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1995, 1999, 2000
   3    Free Software Foundation, Inc.
   4
   5    Contributed by the Center for Software Science at the
   6    University of Utah (pa-gdb-bugs@cs.utah.edu).
   7
   8 This file is part of GDB.
   9
  10 This program is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2 of the License, or
  13 (at your option) any later version.
  14
  15 This program is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with this program; if not, write to the Free Software
  22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24 /* PA 64-bit specific definitions.  Override those which are in
  25    tm-hppa.h */
  26
  27 /* jimb: this must go.  I'm just using it to disable code I haven't
  28    gotten working yet.  */
  29 #define GDB_TARGET_IS_HPPA_20W
  30
  31 /* FIXME: brobecker 2003-04-21: Although 32bit hppa is partially multiarched,
  32    the conversion for hppa64 hasn't been completed yet.  */
  33 #define GDB_MULTI_ARCH 0
  34
  35 /* FIXME: brobecker 2003-04-21: All the definition from this point until
  36    the include of pa/tm-hppah.h are extracted from tm-hppa.h.  They have
  37    been temporarily moved here, until hppa64 is multiarched too.  */
  38
  39 #if !GDB_MULTI_ARCH
  40 extern int hppa_reg_struct_has_addr (int gcc_p, struct type *type);
  41 #define REG_STRUCT_HAS_ADDR(gcc_p,type) hppa_reg_struct_has_addr (gcc_p,type)
  42 #endif
  43
  44 /* Offset from address of function to start of its code.
  45    Zero on most machines.  */
  46
  47 #if !GDB_MULTI_ARCH
  48 #define FUNCTION_START_OFFSET 0
  49 #endif
  50
  51 /* Advance PC across any function entry prologue instructions
  52    to reach some "real" code.  */
  53
  54 #if !GDB_MULTI_ARCH
  55 extern CORE_ADDR hppa_skip_prologue (CORE_ADDR);
  56 #define SKIP_PROLOGUE(pc) (hppa_skip_prologue (pc))
  57 #endif
  58
  59 /* If PC is in some function-call trampoline code, return the PC
  60    where the function itself actually starts.  If not, return NULL.  */
  61
  62 #if !GDB_MULTI_ARCH
  63 #define SKIP_TRAMPOLINE_CODE(pc) hppa_skip_trampoline_code (pc)
  64 extern CORE_ADDR hppa_skip_trampoline_code (CORE_ADDR);
  65 #endif
  66
  67 /* Return non-zero if we are in an appropriate trampoline. */
  68
  69 #if !GDB_MULTI_ARCH
  70 #define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \
  71    hppa_in_solib_call_trampoline (pc, name)
  72 extern int hppa_in_solib_call_trampoline (CORE_ADDR, char *);
  73 #endif
  74
  75 #if !GDB_MULTI_ARCH
  76 #define IN_SOLIB_RETURN_TRAMPOLINE(pc, name) \
  77   hppa_in_solib_return_trampoline (pc, name)
  78 extern int hppa_in_solib_return_trampoline (CORE_ADDR, char *);
  79 #endif
  80
  81 #if !GDB_MULTI_ARCH
  82 #undef  DEPRECATED_SAVED_PC_AFTER_CALL
  83 #define DEPRECATED_SAVED_PC_AFTER_CALL(frame) hppa_saved_pc_after_call (frame)
  84 extern CORE_ADDR hppa_saved_pc_after_call (struct frame_info *);
  85 #endif
  86
  87 #if !GDB_MULTI_ARCH
  88 extern int hppa_inner_than (CORE_ADDR lhs, CORE_ADDR rhs);
  89 #define INNER_THAN(lhs,rhs) hppa_inner_than(lhs,rhs)
  90 #endif
  91
  92 #if !GDB_MULTI_ARCH
  93 extern CORE_ADDR hppa_stack_align (CORE_ADDR sp);
  94 #define STACK_ALIGN(sp) hppa_stack_align (sp)
  95 #endif
  96
  97 /* Amount PC must be decremented by after a breakpoint.
  98    This is often the number of bytes in BREAKPOINT
  99    but not always.
 100
 101    Not on the PA-RISC */
 102
 103 #if !GDB_MULTI_ARCH
 104 #define DECR_PC_AFTER_BREAK 0
 105 #endif
 106
 107 /* Say how long (ordinary) registers are.  This is a piece of bogosity
 108    used in push_word and a few other places; REGISTER_RAW_SIZE is the
 109    real way to know how big a register is.  */
 110
 111 #if !GDB_MULTI_ARCH
 112 #define REGISTER_SIZE 4
 113 #endif
 114
 115 /* Number of machine registers */
 116
 117 #if !GDB_MULTI_ARCH
 118 #define NUM_REGS 128
 119 #endif
 120
 121 #if !GDB_MULTI_ARCH
 122 #define FP_REGNUM 3             /* Contains address of executing stack */
 123                                 /* frame */
 124 #endif
 125 #if !GDB_MULTI_ARCH
 126 #define SP_REGNUM 30            /* Contains address of top of stack */
 127 #endif
 128
 129 #if !GDB_MULTI_ARCH
 130 #define FP0_REGNUM 64           /* floating point reg. 0 (fspr) */
 131 #endif
 132
 133 /* compatibility with the rest of gdb. */
 134 #if !GDB_MULTI_ARCH
 135 #define PC_REGNUM PCOQ_HEAD_REGNUM
 136 #endif
 137 #if !GDB_MULTI_ARCH
 138 #define NPC_REGNUM PCOQ_TAIL_REGNUM
 139 #endif
 140
 141 /* Number of bytes of storage in the actual machine representation
 142    for register N.  On the PA-RISC, all regs are 4 bytes, including
 143    the FP registers (they're accessed as two 4 byte halves).  */
 144
 145 #if !GDB_MULTI_ARCH
 146 extern int hppa_register_raw_size (int reg_nr);
 147 #define REGISTER_RAW_SIZE(N) hppa_register_raw_size (N)
 148 #endif
 149
 150 /* Total amount of space needed to store our copies of the machine's
 151    register state, the array `registers'.  */
 152 #if !GDB_MULTI_ARCH
 153 #define REGISTER_BYTES (NUM_REGS * 4)
 154 #endif
 155
 156 #if !GDB_MULTI_ARCH
 157 extern int hppa_register_byte (int reg_nr);
 158 #define REGISTER_BYTE(N) hppa_register_byte (N)
 159 #endif
 160
 161 /* Number of bytes of storage in the program's representation
 162    for register N. */
 163
 164 #if !GDB_MULTI_ARCH
 165 #define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N)
 166 #endif
 167
 168 /* Largest value REGISTER_RAW_SIZE can have.  */
 169
 170 #if !GDB_MULTI_ARCH
 171 #define DEPRECATED_MAX_REGISTER_RAW_SIZE 4
 172 #endif
 173
 174 /* Largest value REGISTER_VIRTUAL_SIZE can have.  */
 175
 176 #if !GDB_MULTI_ARCH
 177 #define DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE 8
 178 #endif
 179
 180 #if !GDB_MULTI_ARCH
 181 extern struct type * hppa_register_virtual_type (int reg_nr);
 182 #define REGISTER_VIRTUAL_TYPE(N) hppa_register_virtual_type (N)
 183 #endif
 184
 185 #if !GDB_MULTI_ARCH
 186 extern void hppa_store_struct_return (CORE_ADDR addr, CORE_ADDR sp);
 187 #define STORE_STRUCT_RETURN(ADDR, SP) hppa_store_struct_return (ADDR, SP)
 188 #endif
 189
 190 /* Extract from an array REGBUF containing the (raw) register state
 191    a function return value of type TYPE, and copy that, in virtual format,
 192    into VALBUF.  */
 193
 194 #if !GDB_MULTI_ARCH
 195 void hppa_extract_return_value (struct type *type, char *regbuf, char *valbuf);
 196 #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
 197   hppa_extract_return_value (TYPE, REGBUF, VALBUF);
 198 #endif
 199
 200  /* elz: decide whether the function returning a value of type type
 201     will put it on the stack or in the registers.
 202     The pa calling convention says that:
 203     register 28 (called ret0 by gdb) contains any ASCII char,
 204     and any non_floating point value up to 32-bits.
 205     reg 28 and 29 contain non-floating point up tp 64 bits and larger
 206     than 32 bits. (higer order word in reg 28).
 207     fr4: floating point up to 64 bits
 208     sr1: space identifier (32-bit)
 209     stack: any lager than 64-bit, with the address in r28
 210   */
 211 #if !GDB_MULTI_ARCH
 212 extern use_struct_convention_fn hppa_use_struct_convention;
 213 #define USE_STRUCT_CONVENTION(gcc_p,type) hppa_use_struct_convention (gcc_p,type)
 214 #endif
 215
 216 /* Write into appropriate registers a function return value
 217    of type TYPE, given in virtual format.  */
 218
 219 #if !GDB_MULTI_ARCH
 220 extern void hppa_store_return_value (struct type *type, char *valbuf);
 221 #define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \
 222   hppa_store_return_value (TYPE, VALBUF);
 223 #endif
 224
 225 #if !GDB_MULTI_ARCH
 226 extern CORE_ADDR hppa_extract_struct_value_address (char *regbuf);
 227 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
 228   hppa_extract_struct_value_address (REGBUF)
 229 #endif
 230
 231 #if !GDB_MULTI_ARCH
 232 extern int hppa_cannot_store_register (int regnum);
 233 #define CANNOT_STORE_REGISTER(regno) hppa_cannot_store_register (regno)
 234 #endif
 235
 236 #if !GDB_MULTI_ARCH
 237 #define DEPRECATED_INIT_EXTRA_FRAME_INFO(fromleaf, frame) hppa_init_extra_frame_info (fromleaf, frame)
 238 extern void hppa_init_extra_frame_info (int, struct frame_info *);
 239 #endif
 240
 241 /* Describe the pointer in each stack frame to the previous stack frame
 242    (its caller).  */
 243
 244 /* DEPRECATED_FRAME_CHAIN takes a frame's nominal address and produces
 245    the frame's chain-pointer.  */
 246
 247 /* In the case of the PA-RISC, the frame's nominal address
 248    is the address of a 4-byte word containing the calling frame's
 249    address (previous FP).  */
 250
 251 #if !GDB_MULTI_ARCH
 252 #define DEPRECATED_FRAME_CHAIN(thisframe) hppa_frame_chain (thisframe)
 253 extern CORE_ADDR hppa_frame_chain (struct frame_info *);
 254 #endif
 255
 256 #if !GDB_MULTI_ARCH
 257 extern int hppa_frame_chain_valid (CORE_ADDR, struct frame_info *);
 258 #define DEPRECATED_FRAME_CHAIN_VALID(chain, thisframe) hppa_frame_chain_valid (chain, thisframe)
 259 #endif
 260
 261 /* Define other aspects of the stack frame.  */
 262
 263 /* A macro that tells us whether the function invocation represented
 264    by FI does not have a frame on the stack associated with it.  If it
 265    does not, FRAMELESS is set to 1, else 0.  */
 266 #if !GDB_MULTI_ARCH
 267 #define FRAMELESS_FUNCTION_INVOCATION(FI) \
 268   (hppa_frameless_function_invocation (FI))
 269 extern int hppa_frameless_function_invocation (struct frame_info *);
 270 #endif
 271
 272 #if !GDB_MULTI_ARCH
 273 extern CORE_ADDR hppa_frame_saved_pc (struct frame_info *frame);
 274 #define DEPRECATED_FRAME_SAVED_PC(FRAME) hppa_frame_saved_pc (FRAME)
 275 #endif
 276
 277 #if !GDB_MULTI_ARCH
 278 extern CORE_ADDR hppa_frame_args_address (struct frame_info *fi);
 279 #define FRAME_ARGS_ADDRESS(fi) hppa_frame_args_address (fi)
 280 #endif
 281
 282 #if !GDB_MULTI_ARCH
 283 extern CORE_ADDR hppa_frame_locals_address (struct frame_info *fi);
 284 #define FRAME_LOCALS_ADDRESS(fi) hppa_frame_locals_address (fi)
 285 #endif
 286
 287 #if !GDB_MULTI_ARCH
 288 extern int hppa_frame_num_args (struct frame_info *frame);
 289 #define FRAME_NUM_ARGS(fi) hppa_frame_num_args (fi)
 290 #endif
 291
 292 #if !GDB_MULTI_ARCH
 293 #define FRAME_ARGS_SKIP 0
 294 #endif
 295
 296 /* Things needed for making the inferior call functions.  */
 297
 298 #if !GDB_MULTI_ARCH
 299 #define DEPRECATED_PUSH_DUMMY_FRAME hppa_push_dummy_frame ()
 300 extern void hppa_push_dummy_frame (void);
 301 #endif
 302
 303 /* Discard from the stack the innermost frame,
 304    restoring all saved registers.  */
 305 #if !GDB_MULTI_ARCH
 306 #define DEPRECATED_POP_FRAME  hppa_pop_frame ()
 307 extern void hppa_pop_frame (void);
 308 #endif
 309
 310 #if !GDB_MULTI_ARCH
 311 #define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 28)
 312 #endif
 313
 314 #if !GDB_MULTI_ARCH
 315 #define CALL_DUMMY_START_OFFSET 0
 316 #endif
 317
 318 #if !GDB_MULTI_ARCH
 319 #define DEPRECATED_PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
 320   (hppa_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr)))
 321 extern CORE_ADDR hppa_push_arguments (int, struct value **, CORE_ADDR, int,
 322                                       CORE_ADDR);
 323 #endif
 324
 325 #if !GDB_MULTI_ARCH
 326 extern CORE_ADDR hppa_smash_text_address (CORE_ADDR addr);
 327 #define SMASH_TEXT_ADDRESS(addr) hppa_smash_text_address (addr)
 328 #endif
 329
 330 #if !GDB_MULTI_ARCH
 331 #define BELIEVE_PCC_PROMOTION 1
 332 #endif
 333
 334 #if !GDB_MULTI_ARCH
 335 #define TARGET_READ_PC(pid) hppa_target_read_pc (pid)
 336 extern CORE_ADDR hppa_target_read_pc (ptid_t);
 337 #endif
 338
 339 #if !GDB_MULTI_ARCH
 340 #define TARGET_WRITE_PC(v,pid) hppa_target_write_pc (v,pid)
 341 extern void hppa_target_write_pc (CORE_ADDR, ptid_t);
 342 #endif
 343
 344 #if !GDB_MULTI_ARCH
 345 #define TARGET_READ_FP() hppa_target_read_fp ()
 346 extern CORE_ADDR hppa_target_read_fp (void);
 347 #endif
 348
 349 #include "pa/tm-hppah.h"
 350
 351 #define HPUX_1100 1
 352
 353 /* The low two bits of the IA are the privilege level of the instruction.  */
 354 #define ADDR_BITS_REMOVE(addr) ((CORE_ADDR)addr & (CORE_ADDR)~3)
 355
 356 /* Say how long (ordinary) registers are.  This is used in
 357    push_word and a few other places, but REGISTER_RAW_SIZE is
 358    the real way to know how big a register is.  */
 359
 360 #undef REGISTER_SIZE
 361 #define REGISTER_SIZE 8
 362
 363 /* Number of bytes of storage in the actual machine representation
 364    for register N.  On the PA-RISC 2.0, all regs are 8 bytes, including
 365    the FP registers (they're accessed as two 4 byte halves).  */
 366
 367 #undef REGISTER_RAW_SIZE
 368 #define REGISTER_RAW_SIZE(N) 8
 369
 370 /* Largest value REGISTER_RAW_SIZE can have.  */
 371
 372 #undef DEPRECATED_MAX_REGISTER_RAW_SIZE
 373 #define DEPRECATED_MAX_REGISTER_RAW_SIZE 8
 374
 375 /* Total amount of space needed to store our copies of the machine's
 376    register state, the array `registers'.  */
 377
 378 #undef REGISTER_BYTES
 379 #define REGISTER_BYTES (NUM_REGS * 8)
 380
 381 /* Index within `registers' of the first byte of the space for
 382    register N.  */
 383
 384 #undef REGISTER_BYTE
 385 #define REGISTER_BYTE(N) ((N) * 8)
 386
 387 #undef REGISTER_VIRTUAL_TYPE
 388 #define REGISTER_VIRTUAL_TYPE(N) \
 389  ((N) < FP4_REGNUM ? builtin_type_unsigned_long_long : builtin_type_double)
 390
 391
 392 /* Number of machine registers */
 393 #undef NUM_REGS
 394 #define NUM_REGS 96
 395
 396 /* Initializer for an array of names of registers.
 397    There should be NUM_REGS strings in this initializer.
 398    They are in rows of eight entries  */
 399 #undef REGISTER_NAMES
 400 #define REGISTER_NAMES  \
 401  {"flags",  "r1",      "rp",      "r3",    "r4",     "r5",      "r6",     "r7",    \
 402   "r8",     "r9",      "r10",     "r11",   "r12",    "r13",     "r14",    "r15",   \
 403   "r16",    "r17",     "r18",     "r19",   "r20",    "r21",     "r22",    "r23",   \
 404   "r24",    "r25",     "r26",     "dp",    "ret0",   "ret1",    "sp",     "r31",   \
 405   "sar",    "pcoqh",   "pcsqh",   "pcoqt", "pcsqt",  "eiem",    "iir",    "isr",   \
 406   "ior",    "ipsw",    "goto",    "sr4",   "sr0",    "sr1",     "sr2",    "sr3",   \
 407   "sr5",    "sr6",     "sr7",     "cr0",   "cr8",    "cr9",     "ccr",    "cr12",  \
 408   "cr13",   "cr24",    "cr25",    "cr26",  "mpsfu_high","mpsfu_low","mpsfu_ovflo","pad",\
 409   "fpsr",    "fpe1",   "fpe2",    "fpe3",  "fr4",    "fr5",     "fr6",    "fr7", \
 410   "fr8",     "fr9",    "fr10",    "fr11",  "fr12",   "fr13",    "fr14",   "fr15", \
 411   "fr16",    "fr17",   "fr18",    "fr19",  "fr20",   "fr21",    "fr22",   "fr23", \
 412   "fr24",    "fr25",   "fr26",    "fr27",   "fr28",  "fr29",    "fr30",   "fr31"}
 413
 414 #undef FP0_REGNUM
 415 #undef FP4_REGNUM
 416 #define FP0_REGNUM 64           /* floating point reg. 0 (fspr)*/
 417 #define FP4_REGNUM 68
 418
 419 /* Redefine some target bit sizes from the default.  */
 420
 421 /* Number of bits in a long or unsigned long for the target machine. */
 422
 423 #define TARGET_LONG_BIT 64
 424
 425 /* Number of bits in a long long or unsigned long long for the
 426    target machine.  */
 427
 428 #define TARGET_LONG_LONG_BIT 64
 429
 430 /* Number of bits in a pointer for the target machine */
 431
 432 #define TARGET_PTR_BIT 64
 433
 434 /* Argument Pointer Register */
 435 #define AP_REGNUM 29
 436
 437 #define DP_REGNUM 27
 438
 439 #define FP5_REGNUM 70
 440
 441 #define SR5_REGNUM 48
 442
 443 /* We access locals from SP. This may not work for frames which call
 444    alloca; for those, we may need to consult unwind tables.
 445    jimb: FIXME.  */
 446 #undef FRAME_LOCALS_ADDRESS
 447 #define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
 448
 449 /* For a number of horrible reasons we may have to adjust the location
 450    of variables on the stack.  Ugh.  jimb: why? */
 451 #define HPREAD_ADJUST_STACK_ADDRESS(ADDR) hpread_adjust_stack_address(ADDR)
 452
 453 extern int hpread_adjust_stack_address (CORE_ADDR);
 454
 455
 456 /* jimb: omitted dynamic linking stuff here */
 457
 458 /* This sequence of words is the instructions
 459
 460 ; Call stack frame has already been built by gdb. Since we could be calling
 461 ; a varargs function, and we do not have the benefit of a stub to put things in
 462 ; the right place, we load the first 8 word of arguments into both the general
 463 ; and fp registers.
 464 call_dummy
 465         nop
 466         copy %r4,%r29
 467         copy %r5,%r22
 468         copy %r6,%r27
 469         fldd -64(0,%r29),%fr4
 470         fldd -56(0,%r29),%fr5
 471         fldd -48(0,%r29),%fr6
 472         fldd -40(0,%r29),%fr7
 473         fldd -32(0,%r29),%fr8
 474         fldd -24(0,%r29),%fr9
 475         fldd -16(0,%r29),%fr10
 476         fldd -8(0,%r29),%fr11
 477         copy %r22,%r1
 478         ldd -64(%r29), %r26
 479         ldd -56(%r29), %r25
 480         ldd -48(%r29), %r24
 481         ldd -40(%r29), %r23
 482         ldd -32(%r29), %r22
 483         ldd -24(%r29), %r21
 484         ldd -16(%r29), %r20
 485         bve,l (%r1),%r2
 486         ldd -8(%r29), %r19
 487         break 4, 8
 488         mtsp %r21, %sr0
 489         ble 0(%sr0, %r22)
 490         nop
 491 */
 492
 493 /* Call dummys are sized and written out in word sized hunks.  So we have
 494    to pack the instructions into words.  Ugh.  */
 495 #undef CALL_DUMMY
 496 #define CALL_DUMMY {0x08000240349d0000LL, 0x34b6000034db0000LL, \
 497                     0x53a43f8353a53f93LL, 0x53a63fa353a73fb3LL,\
 498                     0x53a83fc353a93fd3LL, 0x2fa1100a2fb1100bLL,\
 499                     0x36c1000053ba3f81LL, 0x53b93f9153b83fa1LL,\
 500                     0x53b73fb153b63fc1LL, 0x53b53fd10fa110d4LL,\
 501                     0xe820f0000fb110d3LL, 0x0001000400151820LL,\
 502                     0xe6c0000008000240LL}
 503
 504 #define CALL_DUMMY_BREAKPOINT_OFFSET 22 * 4
 505
 506 /* CALL_DUMMY_LENGTH is computed based on the size of a word on the target
 507    machine, not the size of an instruction.  Since a word on this target
 508    holds two instructions we have to divide the instruction size by two to
 509    get the word size of the dummy.  */
 510 #undef CALL_DUMMY_LENGTH
 511 #define CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 26 / 2)
 512
 513 /* The PA64 ABI mandates a 16 byte stack alignment.  */
 514 #undef STACK_ALIGN
 515 #define STACK_ALIGN(arg) ( ((arg)%16) ? (((arg)+15)&-16) : (arg))
 516
 517 /* The PA64 ABI reserves 64 bytes of stack space for outgoing register
 518    parameters.  */
 519 #undef REG_PARM_STACK_SPACE
 520 #define REG_PARM_STACK_SPACE 64
 521
 522 /* Use the 64-bit calling conventions designed for the PA2.0 in wide mode.  */
 523 #define PA20W_CALLING_CONVENTIONS
 524
 525 #undef FUNC_LDIL_OFFSET
 526 #undef FUNC_LDO_OFFSET
 527 #undef SR4EXPORT_LDIL_OFFSET
 528 #undef SR4EXPORT_LDO_OFFSET
 529
 530 #undef REG_STRUCT_HAS_ADDR
 531
 532 #undef DEPRECATED_EXTRACT_RETURN_VALUE
 533 /* RM: floats are returned in FR4R, doubles in FR4
 534  *     integral values are in r28, padded on the left
 535  *     aggregates less that 65 bits are in r28, right padded
 536  *     aggregates upto 128 bits are in r28 and r29, right padded
 537  */
 538 #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
 539   { \
 540     if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
 541       memcpy ((VALBUF), \
 542               ((char *)(REGBUF)) + REGISTER_BYTE (FP4_REGNUM) + \
 543               (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
 544               TYPE_LENGTH (TYPE)); \
 545     else if  (is_integral_type(TYPE))   \
 546        memcpy ((VALBUF), \
 547                (char *)(REGBUF) + REGISTER_BYTE (28) + \
 548                (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
 549                TYPE_LENGTH (TYPE)); \
 550     else if (TYPE_LENGTH (TYPE) <= 8)   \
 551        memcpy ((VALBUF), \
 552                (char *)(REGBUF) + REGISTER_BYTE (28), \
 553                TYPE_LENGTH (TYPE)); \
 554     else if (TYPE_LENGTH (TYPE) <= 16)   \
 555       { \
 556         memcpy ((VALBUF), \
 557                 (char *)(REGBUF) + REGISTER_BYTE (28), \
 558                 8); \
 559         memcpy (((char *) VALBUF + 8), \
 560                 (char *)(REGBUF) + REGISTER_BYTE (29), \
 561                 TYPE_LENGTH (TYPE) - 8); \
 562        } \
 563   }
 564
 565 /* RM: struct upto 128 bits are returned in registers */
 566 #undef USE_STRUCT_CONVENTION
 567 #define USE_STRUCT_CONVENTION(gcc_p, value_type)\
 568   (TYPE_LENGTH (value_type) > 16)
 569
 570 /* RM: for return command */
 571 #undef DEPRECATED_STORE_RETURN_VALUE
 572 #define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \
 573   { \
 574     if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
 575       deprecated_write_register_bytes \
 576               (REGISTER_BYTE (FP4_REGNUM) + \
 577               (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
 578               (VALBUF), \
 579               TYPE_LENGTH (TYPE)); \
 580     else if (is_integral_type(TYPE))   \
 581        deprecated_write_register_bytes \
 582               (REGISTER_BYTE (28) + \
 583                  (REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
 584                (VALBUF), \
 585                TYPE_LENGTH (TYPE)); \
 586     else if (TYPE_LENGTH (TYPE) <= 8)   \
 587        deprecated_write_register_bytes \
 588              ( REGISTER_BYTE (28), \
 589                (VALBUF), \
 590                TYPE_LENGTH (TYPE)); \
 591     else if (TYPE_LENGTH (TYPE) <= 16)   \
 592       { \
 593         deprecated_write_register_bytes \
 594                (REGISTER_BYTE (28), \
 595                 (VALBUF), \
 596                 8); \
 597         deprecated_write_register_bytes \
 598                (REGISTER_BYTE (29), \
 599                 ((char *) VALBUF + 8), \
 600                 TYPE_LENGTH (TYPE) - 8); \
 601        } \
 602   }
 603
 604 /* RM: these are the PA64 equivalents of the macros in tm-hppah.h --
 605  * see comments there.  For PA64, the save_state structure is at an
 606  * offset of 24 32-bit words from the sigcontext structure. The 64 bit
 607  * general registers are at an offset of 640 bytes from the beginning of the
 608  * save_state structure, and the floating pointer register are at an offset
 609  * of 256 bytes from the beginning of the save_state structure.
 610  */
 611 #undef FRAME_SAVED_PC_IN_SIGTRAMP
 612 #define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \
 613 { \
 614   *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (33 * 8), 8); \
 615 }
 616
 617 #undef FRAME_BASE_BEFORE_SIGTRAMP
 618 #define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \
 619 { \
 620   *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (30 * 8), 8); \
 621 }
 622
 623 #undef FRAME_FIND_SAVED_REGS_IN_SIGTRAMP
 624 #define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \
 625 { \
 626   int i; \
 627   CORE_ADDR TMP1, TMP2; \
 628   TMP1 = (FRAME)->frame + (24 * 4) + 640; \
 629   TMP2 = (FRAME)->frame + (24 * 4) + 256; \
 630   for (i = 0; i < NUM_REGS; i++) \
 631     { \
 632       if (i == SP_REGNUM) \
 633         (FSR)[SP_REGNUM] = read_memory_integer (TMP1 + SP_REGNUM * 8, 8); \
 634       else if (i >= FP0_REGNUM) \
 635         (FSR)[i] = TMP2 + (i - FP0_REGNUM) * 8; \
 636       else \
 637         (FSR)[i] = TMP1 + i * 8; \
 638     } \
 639 }
 640
 641 /* jimb: omitted purify call support */