gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   5 #
   6 # This file is part of GDB.
   7 #
   8 # This program 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 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program 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 this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21
  22 # Make certain that the script is running in an internationalized
  23 # environment.
  24 LANG=c ; export LANG
  25 LC_ALL=c ; export LC_ALL
  26
  27
  28 compare_new ()
  29 {
  30     file=$1
  31     if test ! -r ${file}
  32     then
  33         echo "${file} missing? cp new-${file} ${file}" 1>&2
  34     elif diff -u ${file} new-${file}
  35     then
  36         echo "${file} unchanged" 1>&2
  37     else
  38         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  39     fi
  40 }
  41
  42
  43 # Format of the input table
  44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  45
  46 do_read ()
  47 {
  48     comment=""
  49     class=""
  50     while read line
  51     do
  52         if test "${line}" = ""
  53         then
  54             continue
  55         elif test "${line}" = "#" -a "${comment}" = ""
  56         then
  57             continue
  58         elif expr "${line}" : "#" > /dev/null
  59         then
  60             comment="${comment}
  61 ${line}"
  62         else
  63
  64             # The semantics of IFS varies between different SH's.  Some
  65             # treat ``::' as three fields while some treat it as just too.
  66             # Work around this by eliminating ``::'' ....
  67             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  68
  69             OFS="${IFS}" ; IFS="[:]"
  70             eval read ${read} <<EOF
  71 ${line}
  72 EOF
  73             IFS="${OFS}"
  74
  75             # .... and then going back through each field and strip out those
  76             # that ended up with just that space character.
  77             for r in ${read}
  78             do
  79                 if eval test \"\${${r}}\" = \"\ \"
  80                 then
  81                     eval ${r}=""
  82                 fi
  83             done
  84
  85             case "${level}" in
  86                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  87                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  88                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  89                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  90             esac
  91
  92             case "${class}" in
  93                 m ) staticdefault="${predefault}" ;;
  94                 M ) staticdefault="0" ;;
  95                 * ) test "${staticdefault}" || staticdefault=0 ;;
  96             esac
  97
  98             # come up with a format, use a few guesses for variables
  99             case ":${class}:${fmt}:${print}:" in
 100                 :[vV]::: )
 101                     if [ "${returntype}" = int ]
 102                     then
 103                         fmt="%d"
 104                         print="${macro}"
 105                     elif [ "${returntype}" = long ]
 106                     then
 107                         fmt="%ld"
 108                         print="${macro}"
 109                     fi
 110                     ;;
 111             esac
 112             test "${fmt}" || fmt="%ld"
 113             test "${print}" || print="(long) ${macro}"
 114
 115             case "${class}" in
 116             F | V | M )
 117                 case "${invalid_p}" in
 118                 "" )
 119                     if test -n "${predefault}"
 120                     then
 121                         #invalid_p="gdbarch->${function} == ${predefault}"
 122                         predicate="gdbarch->${function} != ${predefault}"
 123                     elif class_is_variable_p
 124                     then
 125                         predicate="gdbarch->${function} != 0"
 126                     elif class_is_function_p
 127                     then
 128                         predicate="gdbarch->${function} != NULL"
 129                     fi
 130                     ;;
 131                 * )
 132                     echo "Predicate function ${function} with invalid_p." 1>&2
 133                     kill $$
 134                     exit 1
 135                     ;;
 136                 esac
 137             esac
 138
 139             # PREDEFAULT is a valid fallback definition of MEMBER when
 140             # multi-arch is not enabled.  This ensures that the
 141             # default value, when multi-arch is the same as the
 142             # default value when not multi-arch.  POSTDEFAULT is
 143             # always a valid definition of MEMBER as this again
 144             # ensures consistency.
 145
 146             if [ -n "${postdefault}" ]
 147             then
 148                 fallbackdefault="${postdefault}"
 149             elif [ -n "${predefault}" ]
 150             then
 151                 fallbackdefault="${predefault}"
 152             else
 153                 fallbackdefault="0"
 154             fi
 155
 156             #NOT YET: See gdbarch.log for basic verification of
 157             # database
 158
 159             break
 160         fi
 161     done
 162     if [ -n "${class}" ]
 163     then
 164         true
 165     else
 166         false
 167     fi
 168 }
 169
 170
 171 fallback_default_p ()
 172 {
 173     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 174         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 175 }
 176
 177 class_is_variable_p ()
 178 {
 179     case "${class}" in
 180         *v* | *V* ) true ;;
 181         * ) false ;;
 182     esac
 183 }
 184
 185 class_is_function_p ()
 186 {
 187     case "${class}" in
 188         *f* | *F* | *m* | *M* ) true ;;
 189         * ) false ;;
 190     esac
 191 }
 192
 193 class_is_multiarch_p ()
 194 {
 195     case "${class}" in
 196         *m* | *M* ) true ;;
 197         * ) false ;;
 198     esac
 199 }
 200
 201 class_is_predicate_p ()
 202 {
 203     case "${class}" in
 204         *F* | *V* | *M* ) true ;;
 205         * ) false ;;
 206     esac
 207 }
 208
 209 class_is_info_p ()
 210 {
 211     case "${class}" in
 212         *i* ) true ;;
 213         * ) false ;;
 214     esac
 215 }
 216
 217
 218 # dump out/verify the doco
 219 for field in ${read}
 220 do
 221   case ${field} in
 222
 223     class ) : ;;
 224
 225         # # -> line disable
 226         # f -> function
 227         #   hiding a function
 228         # F -> function + predicate
 229         #   hiding a function + predicate to test function validity
 230         # v -> variable
 231         #   hiding a variable
 232         # V -> variable + predicate
 233         #   hiding a variable + predicate to test variables validity
 234         # i -> set from info
 235         #   hiding something from the ``struct info'' object
 236         # m -> multi-arch function
 237         #   hiding a multi-arch function (parameterised with the architecture)
 238         # M -> multi-arch function + predicate
 239         #   hiding a multi-arch function + predicate to test function validity
 240
 241     level ) : ;;
 242
 243         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 244         # LEVEL is a predicate on checking that a given method is
 245         # initialized (using INVALID_P).
 246
 247     macro ) : ;;
 248
 249         # The name of the MACRO that this method is to be accessed by.
 250
 251     returntype ) : ;;
 252
 253         # For functions, the return type; for variables, the data type
 254
 255     function ) : ;;
 256
 257         # For functions, the member function name; for variables, the
 258         # variable name.  Member function names are always prefixed with
 259         # ``gdbarch_'' for name-space purity.
 260
 261     formal ) : ;;
 262
 263         # The formal argument list.  It is assumed that the formal
 264         # argument list includes the actual name of each list element.
 265         # A function with no arguments shall have ``void'' as the
 266         # formal argument list.
 267
 268     actual ) : ;;
 269
 270         # The list of actual arguments.  The arguments specified shall
 271         # match the FORMAL list given above.  Functions with out
 272         # arguments leave this blank.
 273
 274     attrib ) : ;;
 275
 276         # Any GCC attributes that should be attached to the function
 277         # declaration.  At present this field is unused.
 278
 279     staticdefault ) : ;;
 280
 281         # To help with the GDB startup a static gdbarch object is
 282         # created.  STATICDEFAULT is the value to insert into that
 283         # static gdbarch object.  Since this a static object only
 284         # simple expressions can be used.
 285
 286         # If STATICDEFAULT is empty, zero is used.
 287
 288     predefault ) : ;;
 289
 290         # An initial value to assign to MEMBER of the freshly
 291         # malloc()ed gdbarch object.  After initialization, the
 292         # freshly malloc()ed object is passed to the target
 293         # architecture code for further updates.
 294
 295         # If PREDEFAULT is empty, zero is used.
 296
 297         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 298         # INVALID_P are specified, PREDEFAULT will be used as the
 299         # default for the non- multi-arch target.
 300
 301         # A zero PREDEFAULT function will force the fallback to call
 302         # internal_error().
 303
 304         # Variable declarations can refer to ``gdbarch'' which will
 305         # contain the current architecture.  Care should be taken.
 306
 307     postdefault ) : ;;
 308
 309         # A value to assign to MEMBER of the new gdbarch object should
 310         # the target architecture code fail to change the PREDEFAULT
 311         # value.
 312
 313         # If POSTDEFAULT is empty, no post update is performed.
 314
 315         # If both INVALID_P and POSTDEFAULT are non-empty then
 316         # INVALID_P will be used to determine if MEMBER should be
 317         # changed to POSTDEFAULT.
 318
 319         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 320         # specified, POSTDEFAULT will be used as the default for the
 321         # non- multi-arch target (regardless of the value of
 322         # PREDEFAULT).
 323
 324         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 325
 326         # Variable declarations can refer to ``gdbarch'' which will
 327         # contain the current architecture.  Care should be taken.
 328
 329     invalid_p ) : ;;
 330
 331         # A predicate equation that validates MEMBER.  Non-zero is
 332         # returned if the code creating the new architecture failed to
 333         # initialize MEMBER or the initialized the member is invalid.
 334         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 335         # that value.  If POSTDEFAULT is empty then internal_error()
 336         # is called.
 337
 338         # If INVALID_P is empty, a check that MEMBER is no longer
 339         # equal to PREDEFAULT is used.
 340
 341         # The expression ``0'' disables the INVALID_P check making
 342         # PREDEFAULT a legitimate value.
 343
 344         # See also PREDEFAULT and POSTDEFAULT.
 345
 346     fmt ) : ;;
 347
 348         # printf style format string that can be used to print out the
 349         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 350         # ignored and the function address is printed.
 351
 352         # If FMT is empty, ``%ld'' is used.
 353
 354     print ) : ;;
 355
 356         # An optional equation that casts MEMBER to a value suitable
 357         # for formatting by FMT.
 358
 359         # If PRINT is empty, ``(long)'' is used.
 360
 361     print_p ) : ;;
 362
 363         # An optional indicator for any predicte to wrap around the
 364         # print member code.
 365
 366         #   () -> Call a custom function to do the dump.
 367         #   exp -> Wrap print up in ``if (${print_p}) ...
 368         #   ``'' -> No predicate
 369
 370         # If PRINT_P is empty, ``1'' is always used.
 371
 372     description ) : ;;
 373
 374         # Currently unused.
 375
 376     *)
 377         echo "Bad field ${field}"
 378         exit 1;;
 379   esac
 380 done
 381
 382
 383 function_list ()
 384 {
 385   # See below (DOCO) for description of each field
 386   cat <<EOF
 387 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 388 #
 389 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
 390 #
 391 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
 392 # Number of bits in a char or unsigned char for the target machine.
 393 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 394 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 395 #
 396 # Number of bits in a short or unsigned short for the target machine.
 397 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 398 # Number of bits in an int or unsigned int for the target machine.
 399 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 400 # Number of bits in a long or unsigned long for the target machine.
 401 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 402 # Number of bits in a long long or unsigned long long for the target
 403 # machine.
 404 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 405 # Number of bits in a float for the target machine.
 406 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 407 # Number of bits in a double for the target machine.
 408 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 409 # Number of bits in a long double for the target machine.
 410 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
 411 # For most targets, a pointer on the target and its representation as an
 412 # address in GDB have the same size and "look the same".  For such a
 413 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 414 # / addr_bit will be set from it.
 415 #
 416 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 417 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 418 #
 419 # ptr_bit is the size of a pointer on the target
 420 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 421 # addr_bit is the size of a target address as represented in gdb
 422 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 423 # Number of bits in a BFD_VMA for the target object file format.
 424 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 425 #
 426 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
 427 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
 428 #
 429 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
 430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 431 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
 432 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
 433 # Function for getting target's idea of a frame pointer.  FIXME: GDB's
 434 # whole scheme for dealing with "frames" and "frame pointers" needs a
 435 # serious shakedown.
 436 f:2:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0
 437 #
 438 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
 439 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
 440 #
 441 v:2:NUM_REGS:int:num_regs::::0:-1
 442 # This macro gives the number of pseudo-registers that live in the
 443 # register namespace but do not get fetched or stored on the target.
 444 # These pseudo-registers may be aliases for other registers,
 445 # combinations of other registers, or they may be computed by GDB.
 446 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 447
 448 # GDB's standard (or well known) register numbers.  These can map onto
 449 # a real register or a pseudo (computed) register or not be defined at
 450 # all (-1).
 451 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
 452 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
 453 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
 454 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
 455 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 456 # Replace DEPRECATED_NPC_REGNUM with an implementation of WRITE_PC
 457 # that updates PC, NPC and even NNPC.
 458 v:2:DEPRECATED_NPC_REGNUM:int:deprecated_npc_regnum::::0:-1::0
 459 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 460 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 461 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 462 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 463 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 464 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 465 # Convert from an sdb register number to an internal gdb register number.
 466 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 467 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 468 f::REGISTER_NAME:const char *:register_name:int regnr:regnr
 469
 470 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
 471 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr
 472 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
 473 F:2:DEPRECATED_REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr
 474 # DEPRECATED_REGISTER_BYTES can be deleted.  The value is computed
 475 # from REGISTER_TYPE.
 476 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
 477 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
 478 # register offsets computed using just REGISTER_TYPE, this can be
 479 # deleted.  See: maint print registers.  NOTE: cagney/2002-05-02: This
 480 # function with predicate has a valid (callable) initial value.  As a
 481 # consequence, even when the predicate is false, the corresponding
 482 # function works.  This simplifies the migration process - old code,
 483 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
 484 F::DEPRECATED_REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
 485 # If all registers have identical raw and virtual sizes and those
 486 # sizes agree with the value computed from REGISTER_TYPE,
 487 # DEPRECATED_REGISTER_RAW_SIZE can be deleted.  See: maint print
 488 # registers.
 489 F:2:DEPRECATED_REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 490 # If all registers have identical raw and virtual sizes and those
 491 # sizes agree with the value computed from REGISTER_TYPE,
 492 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted.  See: maint print
 493 # registers.
 494 F:2:DEPRECATED_REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 495 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted.  It has been
 496 # replaced by the constant MAX_REGISTER_SIZE.
 497 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
 498 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted.  It has been
 499 # replaced by the constant MAX_REGISTER_SIZE.
 500 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
 501
 502 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
 503 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info
 504 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 505 # SAVE_DUMMY_FRAME_TOS.
 506 F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp
 507 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 508 # DEPRECATED_FP_REGNUM.
 509 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
 510 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 511 # DEPRECATED_TARGET_READ_FP.
 512 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
 513
 514 # See gdbint.texinfo.  See infcall.c.  New, all singing all dancing,
 515 # replacement for DEPRECATED_PUSH_ARGUMENTS.
 516 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:CORE_ADDR func_addr, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:func_addr, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
 517 # PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS.
 518 F:2:DEPRECATED_PUSH_ARGUMENTS:CORE_ADDR:deprecated_push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr
 519 # DEPRECATED_USE_GENERIC_DUMMY_FRAMES can be deleted.  Always true.
 520 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
 521 # Implement PUSH_RETURN_ADDRESS, and then merge in
 522 # DEPRECATED_PUSH_RETURN_ADDRESS.
 523 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
 524 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
 525 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
 526 # DEPRECATED_REGISTER_SIZE can be deleted.
 527 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
 528 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
 529 F::DEPRECATED_CALL_DUMMY_ADDRESS:CORE_ADDR:deprecated_call_dummy_address:void
 530 # DEPRECATED_CALL_DUMMY_START_OFFSET can be deleted.
 531 v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset
 532 # DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET can be deleted.
 533 v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset
 534 # DEPRECATED_CALL_DUMMY_LENGTH can be deleted.
 535 v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length
 536 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
 537 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 538 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
 539 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 540 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_CALL_DUMMY_STACK_ADJUST.
 541 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust
 542 # DEPRECATED_FIX_CALL_DUMMY can be deleted.  For the SPARC, implement
 543 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
 544 F::DEPRECATED_FIX_CALL_DUMMY:void:deprecated_fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p
 545 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
 546 M::PUSH_DUMMY_CODE:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr
 547 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
 548 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
 549 # Implement PUSH_DUMMY_CALL, then delete
 550 # DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED.
 551 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
 552
 553 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 554 m:2:PRINT_REGISTERS_INFO:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all:::default_print_registers_info::0
 555 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 556 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 557 # MAP a GDB RAW register number onto a simulator register number.  See
 558 # also include/...-sim.h.
 559 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 560 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
 561 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 562 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 563 # setjmp/longjmp support.
 564 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
 565 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 566 # (callable) initial value.  As a consequence, even when the predicate
 567 # is false, the corresponding function works.  This simplifies the
 568 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 569 # doesn't need to be modified.
 570 F::DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::generic_pc_in_call_dummy:generic_pc_in_call_dummy
 571 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
 572 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 573 #
 574 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 575 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 576 F:2:DEPRECATED_GET_SAVED_REGISTER:void:deprecated_get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval
 577 #
 578 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 579 # For raw <-> cooked register conversions, replaced by pseudo registers.
 580 f:2:DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr:::deprecated_register_convertible_not::0
 581 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 582 # For raw <-> cooked register conversions, replaced by pseudo registers.
 583 f:2:DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL:void:deprecated_register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
 584 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 585 # For raw <-> cooked register conversions, replaced by pseudo registers.
 586 f:2:DEPRECATED_REGISTER_CONVERT_TO_RAW:void:deprecated_register_convert_to_raw:struct type *type, int regnum, const char *from, char *to:type, regnum, from, to:::0::0
 587 #
 588 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
 589 f:1:REGISTER_TO_VALUE:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, void *buf:frame, regnum, type, buf::0:legacy_register_to_value::0
 590 f:1:VALUE_TO_REGISTER:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const void *buf:frame, regnum, type, buf::0:legacy_value_to_register::0
 591 #
 592 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 593 f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, void *buf, CORE_ADDR addr:type, buf, addr:::unsigned_address_to_pointer::0
 594 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 595 #
 596 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 597 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
 598 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 599 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
 600 #
 601 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
 602 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
 603 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 604 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 605 #
 606 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache
 607 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf
 608 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::generic_use_struct_convention::0
 609 #
 610 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
 611 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
 612 #
 613 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 614 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
 615 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 616 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
 617 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 618 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 619 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
 620 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
 621 #
 622 m::REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:regcache, gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
 623 #
 624 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 625 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 626 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
 627 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
 628 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 629 # note, per UNWIND_PC's doco, that while the two have similar
 630 # interfaces they have very different underlying implementations.
 631 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
 632 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
 633 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
 634 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
 635 # frame-base.  Enable frame-base before frame-unwind.
 636 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 637 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 638 # frame-base.  Enable frame-base before frame-unwind.
 639 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 640 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 641 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
 642 #
 643 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
 644 # to frame_align and the requirement that methods such as
 645 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
 646 # alignment.
 647 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
 648 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 649 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 650 # stabs_argument_has_addr.
 651 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
 652 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
 653 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
 654 v:2:PARM_BOUNDARY:int:parm_boundary
 655 #
 656 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 657 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 658 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 659 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
 660 # On some machines there are bits in addresses which are not really
 661 # part of the address, but are used by the kernel, the hardware, etc.
 662 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 663 # we get a "real" address such as one would find in a symbol table.
 664 # This is used only for addresses of instructions, and even then I'm
 665 # not sure it's used in all contexts.  It exists to deal with there
 666 # being a few stray bits in the PC which would mislead us, not as some
 667 # sort of generic thing to handle alignment or segmentation (it's
 668 # possible it should be in TARGET_READ_PC instead).
 669 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 670 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 671 # ADDR_BITS_REMOVE.
 672 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 673 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 674 # the target needs software single step.  An ISA method to implement it.
 675 #
 676 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 677 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 678 #
 679 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 680 # single step.  If not, then implement single step using breakpoints.
 681 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
 682 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 683 # disassembler.  Perhaphs objdump can handle it?
 684 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
 685 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 686
 687
 688 # For SVR4 shared libraries, each call goes through a small piece of
 689 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 690 # to nonzero if we are currently stopped in one of these.
 691 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 692
 693 # Some systems also have trampoline code for returning from shared libs.
 694 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 695
 696 # Sigtramp is a routine that the kernel calls (which then calls the
 697 # signal handler).  On most machines it is a library routine that is
 698 # linked into the executable.
 699 #
 700 # This macro, given a program counter value and the name of the
 701 # function in which that PC resides (which can be null if the name is
 702 # not known), returns nonzero if the PC and name show that we are in
 703 # sigtramp.
 704 #
 705 # On most machines just see if the name is sigtramp (and if we have
 706 # no name, assume we are not in sigtramp).
 707 #
 708 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 709 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 710 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 711 # own local NAME lookup.
 712 #
 713 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 714 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 715 # does not.
 716 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 717 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 718 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 719 # A target might have problems with watchpoints as soon as the stack
 720 # frame of the current function has been destroyed.  This mostly happens
 721 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 722 # is defined to return a non-zero value if either the given addr is one
 723 # instruction after the stack destroying instruction up to the trailing
 724 # return instruction or if we can figure out that the stack frame has
 725 # already been invalidated regardless of the value of addr.  Targets
 726 # which don't suffer from that problem could just let this functionality
 727 # untouched.
 728 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 729 # Given a vector of command-line arguments, return a newly allocated
 730 # string which, when passed to the create_inferior function, will be
 731 # parsed (on Unix systems, by the shell) to yield the same vector.
 732 # This function should call error() if the argument vector is not
 733 # representable for this target or if this target does not support
 734 # command-line arguments.
 735 # ARGC is the number of elements in the vector.
 736 # ARGV is an array of strings, one per argument.
 737 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 738 f:2:ELF_MAKE_MSYMBOL_SPECIAL:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym:::default_elf_make_msymbol_special::0
 739 f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0
 740 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 741 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 742 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 743 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 744 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
 745 M:2:ADDRESS_CLASS_NAME_TO_TYPE_FLAGS:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
 746 # Is a register in a group
 747 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 748 # Fetch the pointer to the ith function argument.
 749 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 750
 751 # Return the appropriate register set for a core file section with
 752 # name SECT_NAME and size SECT_SIZE.
 753 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
 754 EOF
 755 }
 756
 757 #
 758 # The .log file
 759 #
 760 exec > new-gdbarch.log
 761 function_list | while do_read
 762 do
 763     cat <<EOF
 764 ${class} ${macro}(${actual})
 765   ${returntype} ${function} ($formal)${attrib}
 766 EOF
 767     for r in ${read}
 768     do
 769         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 770     done
 771     if class_is_predicate_p && fallback_default_p
 772     then
 773         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 774         kill $$
 775         exit 1
 776     fi
 777     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 778     then
 779         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 780         kill $$
 781         exit 1
 782     fi
 783     if class_is_multiarch_p
 784     then
 785         if class_is_predicate_p ; then :
 786         elif test "x${predefault}" = "x"
 787         then
 788             echo "Error: pure multi-arch function must have a predefault" 1>&2
 789             kill $$
 790             exit 1
 791         fi
 792     fi
 793     echo ""
 794 done
 795
 796 exec 1>&2
 797 compare_new gdbarch.log
 798
 799
 800 copyright ()
 801 {
 802 cat <<EOF
 803 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 804
 805 /* Dynamic architecture support for GDB, the GNU debugger.
 806    Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 807
 808    This file is part of GDB.
 809
 810    This program is free software; you can redistribute it and/or modify
 811    it under the terms of the GNU General Public License as published by
 812    the Free Software Foundation; either version 2 of the License, or
 813    (at your option) any later version.
 814
 815    This program is distributed in the hope that it will be useful,
 816    but WITHOUT ANY WARRANTY; without even the implied warranty of
 817    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 818    GNU General Public License for more details.
 819
 820    You should have received a copy of the GNU General Public License
 821    along with this program; if not, write to the Free Software
 822    Foundation, Inc., 59 Temple Place - Suite 330,
 823    Boston, MA 02111-1307, USA.  */
 824
 825 /* This file was created with the aid of \`\`gdbarch.sh''.
 826
 827    The Bourne shell script \`\`gdbarch.sh'' creates the files
 828    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 829    against the existing \`\`gdbarch.[hc]''.  Any differences found
 830    being reported.
 831
 832    If editing this file, please also run gdbarch.sh and merge any
 833    changes into that script. Conversely, when making sweeping changes
 834    to this file, modifying gdbarch.sh and using its output may prove
 835    easier. */
 836
 837 EOF
 838 }
 839
 840 #
 841 # The .h file
 842 #
 843
 844 exec > new-gdbarch.h
 845 copyright
 846 cat <<EOF
 847 #ifndef GDBARCH_H
 848 #define GDBARCH_H
 849
 850 struct floatformat;
 851 struct ui_file;
 852 struct frame_info;
 853 struct value;
 854 struct objfile;
 855 struct minimal_symbol;
 856 struct regcache;
 857 struct reggroup;
 858 struct regset;
 859 struct disassemble_info;
 860
 861 extern struct gdbarch *current_gdbarch;
 862
 863
 864 /* If any of the following are defined, the target wasn't correctly
 865    converted. */
 866
 867 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 868 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 869 #endif
 870 EOF
 871
 872 # function typedef's
 873 printf "\n"
 874 printf "\n"
 875 printf "/* The following are pre-initialized by GDBARCH. */\n"
 876 function_list | while do_read
 877 do
 878     if class_is_info_p
 879     then
 880         printf "\n"
 881         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 882         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 883         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 884         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 885         printf "#endif\n"
 886         printf "#if !defined (${macro})\n"
 887         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 888         printf "#endif\n"
 889     fi
 890 done
 891
 892 # function typedef's
 893 printf "\n"
 894 printf "\n"
 895 printf "/* The following are initialized by the target dependent code. */\n"
 896 function_list | while do_read
 897 do
 898     if [ -n "${comment}" ]
 899     then
 900         echo "${comment}" | sed \
 901             -e '2 s,#,/*,' \
 902             -e '3,$ s,#,  ,' \
 903             -e '$ s,$, */,'
 904     fi
 905     if class_is_multiarch_p
 906     then
 907         if class_is_predicate_p
 908         then
 909             printf "\n"
 910             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 911         fi
 912     else
 913         if class_is_predicate_p
 914         then
 915             printf "\n"
 916             printf "#if defined (${macro})\n"
 917             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 918             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 919             printf "#if !defined (${macro}_P)\n"
 920             printf "#define ${macro}_P() (1)\n"
 921             printf "#endif\n"
 922             printf "#endif\n"
 923             printf "\n"
 924             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 925             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 926             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 927             printf "#endif\n"
 928             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 929             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 930             printf "#endif\n"
 931         fi
 932     fi
 933     if class_is_variable_p
 934     then
 935         printf "\n"
 936         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 937         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 938         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 939         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 940         printf "#endif\n"
 941         printf "#if !defined (${macro})\n"
 942         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 943         printf "#endif\n"
 944     fi
 945     if class_is_function_p
 946     then
 947         printf "\n"
 948         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 949         then
 950             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 951         elif class_is_multiarch_p
 952         then
 953             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 954         else
 955             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 956         fi
 957         if [ "x${formal}" = "xvoid" ]
 958         then
 959           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 960         else
 961           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 962         fi
 963         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 964         if class_is_multiarch_p ; then :
 965         else
 966             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 967             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 968             printf "#endif\n"
 969             if [ "x${actual}" = "x" ]
 970             then
 971                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
 972             elif [ "x${actual}" = "x-" ]
 973             then
 974                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
 975             else
 976                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
 977             fi
 978             printf "#if !defined (${macro})\n"
 979             if [ "x${actual}" = "x" ]
 980             then
 981                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 982             elif [ "x${actual}" = "x-" ]
 983             then
 984                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 985             else
 986                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
 987             fi
 988             printf "#endif\n"
 989         fi
 990     fi
 991 done
 992
 993 # close it off
 994 cat <<EOF
 995
 996 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 997
 998
 999 /* Mechanism for co-ordinating the selection of a specific
1000    architecture.
1001
1002    GDB targets (*-tdep.c) can register an interest in a specific
1003    architecture.  Other GDB components can register a need to maintain
1004    per-architecture data.
1005
1006    The mechanisms below ensures that there is only a loose connection
1007    between the set-architecture command and the various GDB
1008    components.  Each component can independently register their need
1009    to maintain architecture specific data with gdbarch.
1010
1011    Pragmatics:
1012
1013    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1014    didn't scale.
1015
1016    The more traditional mega-struct containing architecture specific
1017    data for all the various GDB components was also considered.  Since
1018    GDB is built from a variable number of (fairly independent)
1019    components it was determined that the global aproach was not
1020    applicable. */
1021
1022
1023 /* Register a new architectural family with GDB.
1024
1025    Register support for the specified ARCHITECTURE with GDB.  When
1026    gdbarch determines that the specified architecture has been
1027    selected, the corresponding INIT function is called.
1028
1029    --
1030
1031    The INIT function takes two parameters: INFO which contains the
1032    information available to gdbarch about the (possibly new)
1033    architecture; ARCHES which is a list of the previously created
1034    \`\`struct gdbarch'' for this architecture.
1035
1036    The INFO parameter is, as far as possible, be pre-initialized with
1037    information obtained from INFO.ABFD or the previously selected
1038    architecture.
1039
1040    The ARCHES parameter is a linked list (sorted most recently used)
1041    of all the previously created architures for this architecture
1042    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1043    values from the previously selected architecture for this
1044    architecture family.  The global \`\`current_gdbarch'' shall not be
1045    used.
1046
1047    The INIT function shall return any of: NULL - indicating that it
1048    doesn't recognize the selected architecture; an existing \`\`struct
1049    gdbarch'' from the ARCHES list - indicating that the new
1050    architecture is just a synonym for an earlier architecture (see
1051    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1052    - that describes the selected architecture (see gdbarch_alloc()).
1053
1054    The DUMP_TDEP function shall print out all target specific values.
1055    Care should be taken to ensure that the function works in both the
1056    multi-arch and non- multi-arch cases. */
1057
1058 struct gdbarch_list
1059 {
1060   struct gdbarch *gdbarch;
1061   struct gdbarch_list *next;
1062 };
1063
1064 struct gdbarch_info
1065 {
1066   /* Use default: NULL (ZERO). */
1067   const struct bfd_arch_info *bfd_arch_info;
1068
1069   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1070   int byte_order;
1071
1072   /* Use default: NULL (ZERO). */
1073   bfd *abfd;
1074
1075   /* Use default: NULL (ZERO). */
1076   struct gdbarch_tdep_info *tdep_info;
1077
1078   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1079   enum gdb_osabi osabi;
1080 };
1081
1082 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1083 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1084
1085 /* DEPRECATED - use gdbarch_register() */
1086 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1087
1088 extern void gdbarch_register (enum bfd_architecture architecture,
1089                               gdbarch_init_ftype *,
1090                               gdbarch_dump_tdep_ftype *);
1091
1092
1093 /* Return a freshly allocated, NULL terminated, array of the valid
1094    architecture names.  Since architectures are registered during the
1095    _initialize phase this function only returns useful information
1096    once initialization has been completed. */
1097
1098 extern const char **gdbarch_printable_names (void);
1099
1100
1101 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1102    matches the information provided by INFO. */
1103
1104 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1105
1106
1107 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1108    basic initialization using values obtained from the INFO andTDEP
1109    parameters.  set_gdbarch_*() functions are called to complete the
1110    initialization of the object. */
1111
1112 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1113
1114
1115 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1116    It is assumed that the caller freeds the \`\`struct
1117    gdbarch_tdep''. */
1118
1119 extern void gdbarch_free (struct gdbarch *);
1120
1121
1122 /* Helper function.  Allocate memory from the \`\`struct gdbarch''
1123    obstack.  The memory is freed when the corresponding architecture
1124    is also freed.  */
1125
1126 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1127 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1128 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1129
1130
1131 /* Helper function. Force an update of the current architecture.
1132
1133    The actual architecture selected is determined by INFO, \`\`(gdb) set
1134    architecture'' et.al., the existing architecture and BFD's default
1135    architecture.  INFO should be initialized to zero and then selected
1136    fields should be updated.
1137
1138    Returns non-zero if the update succeeds */
1139
1140 extern int gdbarch_update_p (struct gdbarch_info info);
1141
1142
1143
1144 /* Register per-architecture data-pointer.
1145
1146    Reserve space for a per-architecture data-pointer.  An identifier
1147    for the reserved data-pointer is returned.  That identifer should
1148    be saved in a local static variable.
1149
1150    The per-architecture data-pointer is either initialized explicitly
1151    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1152    gdbarch_data()).
1153
1154    Memory for the per-architecture data shall be allocated using
1155    gdbarch_obstack_zalloc.  That memory will be deleted when the
1156    corresponding architecture object is deleted.
1157
1158    When a previously created architecture is re-selected, the
1159    per-architecture data-pointer for that previous architecture is
1160    restored.  INIT() is not re-called.
1161
1162    Multiple registrarants for any architecture are allowed (and
1163    strongly encouraged).  */
1164
1165 struct gdbarch_data;
1166
1167 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1168 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1169 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1170                               struct gdbarch_data *data,
1171                               void *pointer);
1172
1173 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1174
1175
1176 /* Register per-architecture memory region.
1177
1178    Provide a memory-region swap mechanism.  Per-architecture memory
1179    region are created.  These memory regions are swapped whenever the
1180    architecture is changed.  For a new architecture, the memory region
1181    is initialized with zero (0) and the INIT function is called.
1182
1183    Memory regions are swapped / initialized in the order that they are
1184    registered.  NULL DATA and/or INIT values can be specified.
1185
1186    New code should use register_gdbarch_data(). */
1187
1188 typedef void (gdbarch_swap_ftype) (void);
1189 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1190 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1191
1192
1193
1194 /* The target-system-dependent byte order is dynamic */
1195
1196 extern int target_byte_order;
1197 #ifndef TARGET_BYTE_ORDER
1198 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1199 #endif
1200
1201 extern int target_byte_order_auto;
1202 #ifndef TARGET_BYTE_ORDER_AUTO
1203 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1204 #endif
1205
1206
1207
1208 /* The target-system-dependent BFD architecture is dynamic */
1209
1210 extern int target_architecture_auto;
1211 #ifndef TARGET_ARCHITECTURE_AUTO
1212 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1213 #endif
1214
1215 extern const struct bfd_arch_info *target_architecture;
1216 #ifndef TARGET_ARCHITECTURE
1217 #define TARGET_ARCHITECTURE (target_architecture + 0)
1218 #endif
1219
1220
1221 /* Set the dynamic target-system-dependent parameters (architecture,
1222    byte-order, ...) using information found in the BFD */
1223
1224 extern void set_gdbarch_from_file (bfd *);
1225
1226
1227 /* Initialize the current architecture to the "first" one we find on
1228    our list.  */
1229
1230 extern void initialize_current_architecture (void);
1231
1232 /* For non-multiarched targets, do any initialization of the default
1233    gdbarch object necessary after the _initialize_MODULE functions
1234    have run.  */
1235 extern void initialize_non_multiarch (void);
1236
1237 /* gdbarch trace variable */
1238 extern int gdbarch_debug;
1239
1240 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1241
1242 #endif
1243 EOF
1244 exec 1>&2
1245 #../move-if-change new-gdbarch.h gdbarch.h
1246 compare_new gdbarch.h
1247
1248
1249 #
1250 # C file
1251 #
1252
1253 exec > new-gdbarch.c
1254 copyright
1255 cat <<EOF
1256
1257 #include "defs.h"
1258 #include "arch-utils.h"
1259
1260 #include "gdbcmd.h"
1261 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1262 #include "symcat.h"
1263
1264 #include "floatformat.h"
1265
1266 #include "gdb_assert.h"
1267 #include "gdb_string.h"
1268 #include "gdb-events.h"
1269 #include "reggroups.h"
1270 #include "osabi.h"
1271 #include "symfile.h"            /* For entry_point_address.  */
1272 #include "gdb_obstack.h"
1273
1274 /* Static function declarations */
1275
1276 static void verify_gdbarch (struct gdbarch *gdbarch);
1277 static void alloc_gdbarch_data (struct gdbarch *);
1278 static void init_gdbarch_swap (struct gdbarch *);
1279 static void clear_gdbarch_swap (struct gdbarch *);
1280 static void swapout_gdbarch_swap (struct gdbarch *);
1281 static void swapin_gdbarch_swap (struct gdbarch *);
1282
1283 /* Non-zero if we want to trace architecture code.  */
1284
1285 #ifndef GDBARCH_DEBUG
1286 #define GDBARCH_DEBUG 0
1287 #endif
1288 int gdbarch_debug = GDBARCH_DEBUG;
1289
1290 EOF
1291
1292 # gdbarch open the gdbarch object
1293 printf "\n"
1294 printf "/* Maintain the struct gdbarch object */\n"
1295 printf "\n"
1296 printf "struct gdbarch\n"
1297 printf "{\n"
1298 printf "  /* Has this architecture been fully initialized?  */\n"
1299 printf "  int initialized_p;\n"
1300 printf "\n"
1301 printf "  /* An obstack bound to the lifetime of the architecture.  */\n"
1302 printf "  struct obstack *obstack;\n"
1303 printf "\n"
1304 printf "  /* basic architectural information */\n"
1305 function_list | while do_read
1306 do
1307     if class_is_info_p
1308     then
1309         printf "  ${returntype} ${function};\n"
1310     fi
1311 done
1312 printf "\n"
1313 printf "  /* target specific vector. */\n"
1314 printf "  struct gdbarch_tdep *tdep;\n"
1315 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1316 printf "\n"
1317 printf "  /* per-architecture data-pointers */\n"
1318 printf "  unsigned nr_data;\n"
1319 printf "  void **data;\n"
1320 printf "\n"
1321 printf "  /* per-architecture swap-regions */\n"
1322 printf "  struct gdbarch_swap *swap;\n"
1323 printf "\n"
1324 cat <<EOF
1325   /* Multi-arch values.
1326
1327      When extending this structure you must:
1328
1329      Add the field below.
1330
1331      Declare set/get functions and define the corresponding
1332      macro in gdbarch.h.
1333
1334      gdbarch_alloc(): If zero/NULL is not a suitable default,
1335      initialize the new field.
1336
1337      verify_gdbarch(): Confirm that the target updated the field
1338      correctly.
1339
1340      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1341      field is dumped out
1342
1343      \`\`startup_gdbarch()'': Append an initial value to the static
1344      variable (base values on the host's c-type system).
1345
1346      get_gdbarch(): Implement the set/get functions (probably using
1347      the macro's as shortcuts).
1348
1349      */
1350
1351 EOF
1352 function_list | while do_read
1353 do
1354     if class_is_variable_p
1355     then
1356         printf "  ${returntype} ${function};\n"
1357     elif class_is_function_p
1358     then
1359         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1360     fi
1361 done
1362 printf "};\n"
1363
1364 # A pre-initialized vector
1365 printf "\n"
1366 printf "\n"
1367 cat <<EOF
1368 /* The default architecture uses host values (for want of a better
1369    choice). */
1370 EOF
1371 printf "\n"
1372 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1373 printf "\n"
1374 printf "struct gdbarch startup_gdbarch =\n"
1375 printf "{\n"
1376 printf "  1, /* Always initialized.  */\n"
1377 printf "  NULL, /* The obstack.  */\n"
1378 printf "  /* basic architecture information */\n"
1379 function_list | while do_read
1380 do
1381     if class_is_info_p
1382     then
1383         printf "  ${staticdefault},  /* ${function} */\n"
1384     fi
1385 done
1386 cat <<EOF
1387   /* target specific vector and its dump routine */
1388   NULL, NULL,
1389   /*per-architecture data-pointers and swap regions */
1390   0, NULL, NULL,
1391   /* Multi-arch values */
1392 EOF
1393 function_list | while do_read
1394 do
1395     if class_is_function_p || class_is_variable_p
1396     then
1397         printf "  ${staticdefault},  /* ${function} */\n"
1398     fi
1399 done
1400 cat <<EOF
1401   /* startup_gdbarch() */
1402 };
1403
1404 struct gdbarch *current_gdbarch = &startup_gdbarch;
1405
1406 /* Do any initialization needed for a non-multiarch configuration
1407    after the _initialize_MODULE functions have been run.  */
1408 void
1409 initialize_non_multiarch (void)
1410 {
1411   alloc_gdbarch_data (&startup_gdbarch);
1412   /* Ensure that all swap areas are zeroed so that they again think
1413      they are starting from scratch.  */
1414   clear_gdbarch_swap (&startup_gdbarch);
1415   init_gdbarch_swap (&startup_gdbarch);
1416 }
1417 EOF
1418
1419 # Create a new gdbarch struct
1420 printf "\n"
1421 printf "\n"
1422 cat <<EOF
1423 /* Create a new \`\`struct gdbarch'' based on information provided by
1424    \`\`struct gdbarch_info''. */
1425 EOF
1426 printf "\n"
1427 cat <<EOF
1428 struct gdbarch *
1429 gdbarch_alloc (const struct gdbarch_info *info,
1430                struct gdbarch_tdep *tdep)
1431 {
1432   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1433      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1434      the current local architecture and not the previous global
1435      architecture.  This ensures that the new architectures initial
1436      values are not influenced by the previous architecture.  Once
1437      everything is parameterised with gdbarch, this will go away.  */
1438   struct gdbarch *current_gdbarch;
1439
1440   /* Create an obstack for allocating all the per-architecture memory,
1441      then use that to allocate the architecture vector.  */
1442   struct obstack *obstack = XMALLOC (struct obstack);
1443   obstack_init (obstack);
1444   current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1445   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1446   current_gdbarch->obstack = obstack;
1447
1448   alloc_gdbarch_data (current_gdbarch);
1449
1450   current_gdbarch->tdep = tdep;
1451 EOF
1452 printf "\n"
1453 function_list | while do_read
1454 do
1455     if class_is_info_p
1456     then
1457         printf "  current_gdbarch->${function} = info->${function};\n"
1458     fi
1459 done
1460 printf "\n"
1461 printf "  /* Force the explicit initialization of these. */\n"
1462 function_list | while do_read
1463 do
1464     if class_is_function_p || class_is_variable_p
1465     then
1466         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1467         then
1468           printf "  current_gdbarch->${function} = ${predefault};\n"
1469         fi
1470     fi
1471 done
1472 cat <<EOF
1473   /* gdbarch_alloc() */
1474
1475   return current_gdbarch;
1476 }
1477 EOF
1478
1479 # Free a gdbarch struct.
1480 printf "\n"
1481 printf "\n"
1482 cat <<EOF
1483 /* Allocate extra space using the per-architecture obstack.  */
1484
1485 void *
1486 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1487 {
1488   void *data = obstack_alloc (arch->obstack, size);
1489   memset (data, 0, size);
1490   return data;
1491 }
1492
1493
1494 /* Free a gdbarch struct.  This should never happen in normal
1495    operation --- once you've created a gdbarch, you keep it around.
1496    However, if an architecture's init function encounters an error
1497    building the structure, it may need to clean up a partially
1498    constructed gdbarch.  */
1499
1500 void
1501 gdbarch_free (struct gdbarch *arch)
1502 {
1503   struct obstack *obstack;
1504   gdb_assert (arch != NULL);
1505   gdb_assert (!arch->initialized_p);
1506   obstack = arch->obstack;
1507   obstack_free (obstack, 0); /* Includes the ARCH.  */
1508   xfree (obstack);
1509 }
1510 EOF
1511
1512 # verify a new architecture
1513 printf "\n"
1514 printf "\n"
1515 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1516 printf "\n"
1517 cat <<EOF
1518 static void
1519 verify_gdbarch (struct gdbarch *gdbarch)
1520 {
1521   struct ui_file *log;
1522   struct cleanup *cleanups;
1523   long dummy;
1524   char *buf;
1525   log = mem_fileopen ();
1526   cleanups = make_cleanup_ui_file_delete (log);
1527   /* fundamental */
1528   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1529     fprintf_unfiltered (log, "\n\tbyte-order");
1530   if (gdbarch->bfd_arch_info == NULL)
1531     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1532   /* Check those that need to be defined for the given multi-arch level. */
1533 EOF
1534 function_list | while do_read
1535 do
1536     if class_is_function_p || class_is_variable_p
1537     then
1538         if [ "x${invalid_p}" = "x0" ]
1539         then
1540             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1541         elif class_is_predicate_p
1542         then
1543             printf "  /* Skip verify of ${function}, has predicate */\n"
1544         # FIXME: See do_read for potential simplification
1545         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1546         then
1547             printf "  if (${invalid_p})\n"
1548             printf "    gdbarch->${function} = ${postdefault};\n"
1549         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1550         then
1551             printf "  if (gdbarch->${function} == ${predefault})\n"
1552             printf "    gdbarch->${function} = ${postdefault};\n"
1553         elif [ -n "${postdefault}" ]
1554         then
1555             printf "  if (gdbarch->${function} == 0)\n"
1556             printf "    gdbarch->${function} = ${postdefault};\n"
1557         elif [ -n "${invalid_p}" ]
1558         then
1559             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1560             printf "      && (${invalid_p}))\n"
1561             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1562         elif [ -n "${predefault}" ]
1563         then
1564             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1565             printf "      && (gdbarch->${function} == ${predefault}))\n"
1566             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1567         fi
1568     fi
1569 done
1570 cat <<EOF
1571   buf = ui_file_xstrdup (log, &dummy);
1572   make_cleanup (xfree, buf);
1573   if (strlen (buf) > 0)
1574     internal_error (__FILE__, __LINE__,
1575                     "verify_gdbarch: the following are invalid ...%s",
1576                     buf);
1577   do_cleanups (cleanups);
1578 }
1579 EOF
1580
1581 # dump the structure
1582 printf "\n"
1583 printf "\n"
1584 cat <<EOF
1585 /* Print out the details of the current architecture. */
1586
1587 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1588    just happens to match the global variable \`\`current_gdbarch''.  That
1589    way macros refering to that variable get the local and not the global
1590    version - ulgh.  Once everything is parameterised with gdbarch, this
1591    will go away. */
1592
1593 void
1594 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1595 {
1596   fprintf_unfiltered (file,
1597                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1598                       GDB_MULTI_ARCH);
1599 EOF
1600 function_list | sort -t: -k 3 | while do_read
1601 do
1602     # First the predicate
1603     if class_is_predicate_p
1604     then
1605         if class_is_multiarch_p
1606         then
1607             printf "  fprintf_unfiltered (file,\n"
1608             printf "                      \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1609             printf "                      gdbarch_${function}_p (current_gdbarch));\n"
1610         else
1611             printf "#ifdef ${macro}_P\n"
1612             printf "  fprintf_unfiltered (file,\n"
1613             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1614             printf "                      \"${macro}_P()\",\n"
1615             printf "                      XSTRING (${macro}_P ()));\n"
1616             printf "  fprintf_unfiltered (file,\n"
1617             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1618             printf "                      ${macro}_P ());\n"
1619             printf "#endif\n"
1620         fi
1621     fi
1622     # multiarch functions don't have macros.
1623     if class_is_multiarch_p
1624     then
1625         printf "  fprintf_unfiltered (file,\n"
1626         printf "                      \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1627         printf "                      (long) current_gdbarch->${function});\n"
1628         continue
1629     fi
1630     # Print the macro definition.
1631     printf "#ifdef ${macro}\n"
1632     if class_is_function_p
1633     then
1634         printf "  fprintf_unfiltered (file,\n"
1635         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1636         printf "                      \"${macro}(${actual})\",\n"
1637         printf "                      XSTRING (${macro} (${actual})));\n"
1638     else
1639         printf "  fprintf_unfiltered (file,\n"
1640         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1641         printf "                      XSTRING (${macro}));\n"
1642     fi
1643     if [ "x${print_p}" = "x()" ]
1644     then
1645         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1646     elif [ "x${print_p}" = "x0" ]
1647     then
1648         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1649     elif [ -n "${print_p}" ]
1650     then
1651         printf "  if (${print_p})\n"
1652         printf "    fprintf_unfiltered (file,\n"
1653         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1654         printf "                        ${print});\n"
1655     elif class_is_function_p
1656     then
1657         printf "  fprintf_unfiltered (file,\n"
1658         printf "                      \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1659         printf "                      (long) current_gdbarch->${function}\n"
1660         printf "                      /*${macro} ()*/);\n"
1661     else
1662         printf "  fprintf_unfiltered (file,\n"
1663         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1664         printf "                      ${print});\n"
1665     fi
1666     printf "#endif\n"
1667 done
1668 cat <<EOF
1669   if (current_gdbarch->dump_tdep != NULL)
1670     current_gdbarch->dump_tdep (current_gdbarch, file);
1671 }
1672 EOF
1673
1674
1675 # GET/SET
1676 printf "\n"
1677 cat <<EOF
1678 struct gdbarch_tdep *
1679 gdbarch_tdep (struct gdbarch *gdbarch)
1680 {
1681   if (gdbarch_debug >= 2)
1682     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1683   return gdbarch->tdep;
1684 }
1685 EOF
1686 printf "\n"
1687 function_list | while do_read
1688 do
1689     if class_is_predicate_p
1690     then
1691         printf "\n"
1692         printf "int\n"
1693         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1694         printf "{\n"
1695         printf "  gdb_assert (gdbarch != NULL);\n"
1696         printf "  return ${predicate};\n"
1697         printf "}\n"
1698     fi
1699     if class_is_function_p
1700     then
1701         printf "\n"
1702         printf "${returntype}\n"
1703         if [ "x${formal}" = "xvoid" ]
1704         then
1705           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1706         else
1707           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1708         fi
1709         printf "{\n"
1710         printf "  gdb_assert (gdbarch != NULL);\n"
1711         printf "  gdb_assert (gdbarch->${function} != NULL);\n"
1712         if class_is_predicate_p && test -n "${predefault}"
1713         then
1714             # Allow a call to a function with a predicate.
1715             printf "  /* Do not check predicate: ${predicate}, allow call.  */\n"
1716         fi
1717         printf "  if (gdbarch_debug >= 2)\n"
1718         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1719         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1720         then
1721             if class_is_multiarch_p
1722             then
1723                 params="gdbarch"
1724             else
1725                 params=""
1726             fi
1727         else
1728             if class_is_multiarch_p
1729             then
1730                 params="gdbarch, ${actual}"
1731             else
1732                 params="${actual}"
1733             fi
1734         fi
1735         if [ "x${returntype}" = "xvoid" ]
1736         then
1737           printf "  gdbarch->${function} (${params});\n"
1738         else
1739           printf "  return gdbarch->${function} (${params});\n"
1740         fi
1741         printf "}\n"
1742         printf "\n"
1743         printf "void\n"
1744         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1745         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1746         printf "{\n"
1747         printf "  gdbarch->${function} = ${function};\n"
1748         printf "}\n"
1749     elif class_is_variable_p
1750     then
1751         printf "\n"
1752         printf "${returntype}\n"
1753         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1754         printf "{\n"
1755         printf "  gdb_assert (gdbarch != NULL);\n"
1756         if [ "x${invalid_p}" = "x0" ]
1757         then
1758             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1759         elif [ -n "${invalid_p}" ]
1760         then
1761             printf "  /* Check variable is valid.  */\n"
1762             printf "  gdb_assert (!(${invalid_p}));\n"
1763         elif [ -n "${predefault}" ]
1764         then
1765             printf "  /* Check variable changed from pre-default.  */\n"
1766             printf "  gdb_assert (gdbarch->${function} != ${predefault});\n"
1767         fi
1768         printf "  if (gdbarch_debug >= 2)\n"
1769         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1770         printf "  return gdbarch->${function};\n"
1771         printf "}\n"
1772         printf "\n"
1773         printf "void\n"
1774         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1775         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1776         printf "{\n"
1777         printf "  gdbarch->${function} = ${function};\n"
1778         printf "}\n"
1779     elif class_is_info_p
1780     then
1781         printf "\n"
1782         printf "${returntype}\n"
1783         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1784         printf "{\n"
1785         printf "  gdb_assert (gdbarch != NULL);\n"
1786         printf "  if (gdbarch_debug >= 2)\n"
1787         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1788         printf "  return gdbarch->${function};\n"
1789         printf "}\n"
1790     fi
1791 done
1792
1793 # All the trailing guff
1794 cat <<EOF
1795
1796
1797 /* Keep a registry of per-architecture data-pointers required by GDB
1798    modules. */
1799
1800 struct gdbarch_data
1801 {
1802   unsigned index;
1803   int init_p;
1804   gdbarch_data_init_ftype *init;
1805 };
1806
1807 struct gdbarch_data_registration
1808 {
1809   struct gdbarch_data *data;
1810   struct gdbarch_data_registration *next;
1811 };
1812
1813 struct gdbarch_data_registry
1814 {
1815   unsigned nr;
1816   struct gdbarch_data_registration *registrations;
1817 };
1818
1819 struct gdbarch_data_registry gdbarch_data_registry =
1820 {
1821   0, NULL,
1822 };
1823
1824 struct gdbarch_data *
1825 register_gdbarch_data (gdbarch_data_init_ftype *init)
1826 {
1827   struct gdbarch_data_registration **curr;
1828   /* Append the new registraration.  */
1829   for (curr = &gdbarch_data_registry.registrations;
1830        (*curr) != NULL;
1831        curr = &(*curr)->next);
1832   (*curr) = XMALLOC (struct gdbarch_data_registration);
1833   (*curr)->next = NULL;
1834   (*curr)->data = XMALLOC (struct gdbarch_data);
1835   (*curr)->data->index = gdbarch_data_registry.nr++;
1836   (*curr)->data->init = init;
1837   (*curr)->data->init_p = 1;
1838   return (*curr)->data;
1839 }
1840
1841
1842 /* Create/delete the gdbarch data vector. */
1843
1844 static void
1845 alloc_gdbarch_data (struct gdbarch *gdbarch)
1846 {
1847   gdb_assert (gdbarch->data == NULL);
1848   gdbarch->nr_data = gdbarch_data_registry.nr;
1849   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1850 }
1851
1852 /* Initialize the current value of the specified per-architecture
1853    data-pointer. */
1854
1855 void
1856 set_gdbarch_data (struct gdbarch *gdbarch,
1857                   struct gdbarch_data *data,
1858                   void *pointer)
1859 {
1860   gdb_assert (data->index < gdbarch->nr_data);
1861   gdb_assert (gdbarch->data[data->index] == NULL);
1862   gdbarch->data[data->index] = pointer;
1863 }
1864
1865 /* Return the current value of the specified per-architecture
1866    data-pointer. */
1867
1868 void *
1869 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1870 {
1871   gdb_assert (data->index < gdbarch->nr_data);
1872   /* The data-pointer isn't initialized, call init() to get a value but
1873      only if the architecture initializaiton has completed.  Otherwise
1874      punt - hope that the caller knows what they are doing.  */
1875   if (gdbarch->data[data->index] == NULL
1876       && gdbarch->initialized_p)
1877     {
1878       /* Be careful to detect an initialization cycle.  */
1879       gdb_assert (data->init_p);
1880       data->init_p = 0;
1881       gdb_assert (data->init != NULL);
1882       gdbarch->data[data->index] = data->init (gdbarch);
1883       data->init_p = 1;
1884       gdb_assert (gdbarch->data[data->index] != NULL);
1885     }
1886   return gdbarch->data[data->index];
1887 }
1888
1889
1890
1891 /* Keep a registry of swapped data required by GDB modules. */
1892
1893 struct gdbarch_swap
1894 {
1895   void *swap;
1896   struct gdbarch_swap_registration *source;
1897   struct gdbarch_swap *next;
1898 };
1899
1900 struct gdbarch_swap_registration
1901 {
1902   void *data;
1903   unsigned long sizeof_data;
1904   gdbarch_swap_ftype *init;
1905   struct gdbarch_swap_registration *next;
1906 };
1907
1908 struct gdbarch_swap_registry
1909 {
1910   int nr;
1911   struct gdbarch_swap_registration *registrations;
1912 };
1913
1914 struct gdbarch_swap_registry gdbarch_swap_registry =
1915 {
1916   0, NULL,
1917 };
1918
1919 void
1920 register_gdbarch_swap (void *data,
1921                        unsigned long sizeof_data,
1922                        gdbarch_swap_ftype *init)
1923 {
1924   struct gdbarch_swap_registration **rego;
1925   for (rego = &gdbarch_swap_registry.registrations;
1926        (*rego) != NULL;
1927        rego = &(*rego)->next);
1928   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1929   (*rego)->next = NULL;
1930   (*rego)->init = init;
1931   (*rego)->data = data;
1932   (*rego)->sizeof_data = sizeof_data;
1933 }
1934
1935 static void
1936 clear_gdbarch_swap (struct gdbarch *gdbarch)
1937 {
1938   struct gdbarch_swap *curr;
1939   for (curr = gdbarch->swap;
1940        curr != NULL;
1941        curr = curr->next)
1942     {
1943       memset (curr->source->data, 0, curr->source->sizeof_data);
1944     }
1945 }
1946
1947 static void
1948 init_gdbarch_swap (struct gdbarch *gdbarch)
1949 {
1950   struct gdbarch_swap_registration *rego;
1951   struct gdbarch_swap **curr = &gdbarch->swap;
1952   for (rego = gdbarch_swap_registry.registrations;
1953        rego != NULL;
1954        rego = rego->next)
1955     {
1956       if (rego->data != NULL)
1957         {
1958           (*curr) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct gdbarch_swap);
1959           (*curr)->source = rego;
1960           (*curr)->swap = gdbarch_obstack_zalloc (gdbarch, rego->sizeof_data);
1961           (*curr)->next = NULL;
1962           curr = &(*curr)->next;
1963         }
1964       if (rego->init != NULL)
1965         rego->init ();
1966     }
1967 }
1968
1969 static void
1970 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1971 {
1972   struct gdbarch_swap *curr;
1973   for (curr = gdbarch->swap;
1974        curr != NULL;
1975        curr = curr->next)
1976     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1977 }
1978
1979 static void
1980 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1981 {
1982   struct gdbarch_swap *curr;
1983   for (curr = gdbarch->swap;
1984        curr != NULL;
1985        curr = curr->next)
1986     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1987 }
1988
1989
1990 /* Keep a registry of the architectures known by GDB. */
1991
1992 struct gdbarch_registration
1993 {
1994   enum bfd_architecture bfd_architecture;
1995   gdbarch_init_ftype *init;
1996   gdbarch_dump_tdep_ftype *dump_tdep;
1997   struct gdbarch_list *arches;
1998   struct gdbarch_registration *next;
1999 };
2000
2001 static struct gdbarch_registration *gdbarch_registry = NULL;
2002
2003 static void
2004 append_name (const char ***buf, int *nr, const char *name)
2005 {
2006   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2007   (*buf)[*nr] = name;
2008   *nr += 1;
2009 }
2010
2011 const char **
2012 gdbarch_printable_names (void)
2013 {
2014   /* Accumulate a list of names based on the registed list of
2015      architectures. */
2016   enum bfd_architecture a;
2017   int nr_arches = 0;
2018   const char **arches = NULL;
2019   struct gdbarch_registration *rego;
2020   for (rego = gdbarch_registry;
2021        rego != NULL;
2022        rego = rego->next)
2023     {
2024       const struct bfd_arch_info *ap;
2025       ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2026       if (ap == NULL)
2027         internal_error (__FILE__, __LINE__,
2028                         "gdbarch_architecture_names: multi-arch unknown");
2029       do
2030         {
2031           append_name (&arches, &nr_arches, ap->printable_name);
2032           ap = ap->next;
2033         }
2034       while (ap != NULL);
2035     }
2036   append_name (&arches, &nr_arches, NULL);
2037   return arches;
2038 }
2039
2040
2041 void
2042 gdbarch_register (enum bfd_architecture bfd_architecture,
2043                   gdbarch_init_ftype *init,
2044                   gdbarch_dump_tdep_ftype *dump_tdep)
2045 {
2046   struct gdbarch_registration **curr;
2047   const struct bfd_arch_info *bfd_arch_info;
2048   /* Check that BFD recognizes this architecture */
2049   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2050   if (bfd_arch_info == NULL)
2051     {
2052       internal_error (__FILE__, __LINE__,
2053                       "gdbarch: Attempt to register unknown architecture (%d)",
2054                       bfd_architecture);
2055     }
2056   /* Check that we haven't seen this architecture before */
2057   for (curr = &gdbarch_registry;
2058        (*curr) != NULL;
2059        curr = &(*curr)->next)
2060     {
2061       if (bfd_architecture == (*curr)->bfd_architecture)
2062         internal_error (__FILE__, __LINE__,
2063                         "gdbarch: Duplicate registraration of architecture (%s)",
2064                         bfd_arch_info->printable_name);
2065     }
2066   /* log it */
2067   if (gdbarch_debug)
2068     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2069                         bfd_arch_info->printable_name,
2070                         (long) init);
2071   /* Append it */
2072   (*curr) = XMALLOC (struct gdbarch_registration);
2073   (*curr)->bfd_architecture = bfd_architecture;
2074   (*curr)->init = init;
2075   (*curr)->dump_tdep = dump_tdep;
2076   (*curr)->arches = NULL;
2077   (*curr)->next = NULL;
2078 }
2079
2080 void
2081 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2082                        gdbarch_init_ftype *init)
2083 {
2084   gdbarch_register (bfd_architecture, init, NULL);
2085 }
2086
2087
2088 /* Look for an architecture using gdbarch_info.  Base search on only
2089    BFD_ARCH_INFO and BYTE_ORDER. */
2090
2091 struct gdbarch_list *
2092 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2093                              const struct gdbarch_info *info)
2094 {
2095   for (; arches != NULL; arches = arches->next)
2096     {
2097       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2098         continue;
2099       if (info->byte_order != arches->gdbarch->byte_order)
2100         continue;
2101       if (info->osabi != arches->gdbarch->osabi)
2102         continue;
2103       return arches;
2104     }
2105   return NULL;
2106 }
2107
2108
2109 /* Update the current architecture. Return ZERO if the update request
2110    failed. */
2111
2112 int
2113 gdbarch_update_p (struct gdbarch_info info)
2114 {
2115   struct gdbarch *new_gdbarch;
2116   struct gdbarch *old_gdbarch;
2117   struct gdbarch_registration *rego;
2118
2119   /* Fill in missing parts of the INFO struct using a number of
2120      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
2121
2122   /* \`\`(gdb) set architecture ...'' */
2123   if (info.bfd_arch_info == NULL
2124       && !TARGET_ARCHITECTURE_AUTO)
2125     info.bfd_arch_info = TARGET_ARCHITECTURE;
2126   if (info.bfd_arch_info == NULL
2127       && info.abfd != NULL
2128       && bfd_get_arch (info.abfd) != bfd_arch_unknown
2129       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2130     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2131   if (info.bfd_arch_info == NULL)
2132     info.bfd_arch_info = TARGET_ARCHITECTURE;
2133
2134   /* \`\`(gdb) set byte-order ...'' */
2135   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2136       && !TARGET_BYTE_ORDER_AUTO)
2137     info.byte_order = TARGET_BYTE_ORDER;
2138   /* From the INFO struct. */
2139   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2140       && info.abfd != NULL)
2141     info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2142                        : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2143                        : BFD_ENDIAN_UNKNOWN);
2144   /* From the current target. */
2145   if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2146     info.byte_order = TARGET_BYTE_ORDER;
2147
2148   /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi.  */
2149   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2150     info.osabi = gdbarch_lookup_osabi (info.abfd);
2151   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2152     info.osabi = current_gdbarch->osabi;
2153
2154   /* Must have found some sort of architecture. */
2155   gdb_assert (info.bfd_arch_info != NULL);
2156
2157   if (gdbarch_debug)
2158     {
2159       fprintf_unfiltered (gdb_stdlog,
2160                           "gdbarch_update: info.bfd_arch_info %s\n",
2161                           (info.bfd_arch_info != NULL
2162                            ? info.bfd_arch_info->printable_name
2163                            : "(null)"));
2164       fprintf_unfiltered (gdb_stdlog,
2165                           "gdbarch_update: info.byte_order %d (%s)\n",
2166                           info.byte_order,
2167                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2168                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2169                            : "default"));
2170       fprintf_unfiltered (gdb_stdlog,
2171                           "gdbarch_update: info.osabi %d (%s)\n",
2172                           info.osabi, gdbarch_osabi_name (info.osabi));
2173       fprintf_unfiltered (gdb_stdlog,
2174                           "gdbarch_update: info.abfd 0x%lx\n",
2175                           (long) info.abfd);
2176       fprintf_unfiltered (gdb_stdlog,
2177                           "gdbarch_update: info.tdep_info 0x%lx\n",
2178                           (long) info.tdep_info);
2179     }
2180
2181   /* Find the target that knows about this architecture. */
2182   for (rego = gdbarch_registry;
2183        rego != NULL;
2184        rego = rego->next)
2185     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2186       break;
2187   if (rego == NULL)
2188     {
2189       if (gdbarch_debug)
2190         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2191       return 0;
2192     }
2193
2194   /* Swap the data belonging to the old target out setting the
2195      installed data to zero.  This stops the ->init() function trying
2196      to refer to the previous architecture's global data structures.  */
2197   swapout_gdbarch_swap (current_gdbarch);
2198   clear_gdbarch_swap (current_gdbarch);
2199
2200   /* Save the previously selected architecture, setting the global to
2201      NULL.  This stops ->init() trying to use the previous
2202      architecture's configuration.  The previous architecture may not
2203      even be of the same architecture family.  The most recent
2204      architecture of the same family is found at the head of the
2205      rego->arches list.  */
2206   old_gdbarch = current_gdbarch;
2207   current_gdbarch = NULL;
2208
2209   /* Ask the target for a replacement architecture. */
2210   new_gdbarch = rego->init (info, rego->arches);
2211
2212   /* Did the target like it?  No. Reject the change and revert to the
2213      old architecture.  */
2214   if (new_gdbarch == NULL)
2215     {
2216       if (gdbarch_debug)
2217         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2218       swapin_gdbarch_swap (old_gdbarch);
2219       current_gdbarch = old_gdbarch;
2220       return 0;
2221     }
2222
2223   /* Did the architecture change?  No.  Oops, put the old architecture
2224      back.  */
2225   if (old_gdbarch == new_gdbarch)
2226     {
2227       if (gdbarch_debug)
2228         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2229                             (long) new_gdbarch,
2230                             new_gdbarch->bfd_arch_info->printable_name);
2231       swapin_gdbarch_swap (old_gdbarch);
2232       current_gdbarch = old_gdbarch;
2233       return 1;
2234     }
2235
2236   /* Is this a pre-existing architecture?  Yes. Move it to the front
2237      of the list of architectures (keeping the list sorted Most
2238      Recently Used) and then copy it in.  */
2239   {
2240     struct gdbarch_list **list;
2241     for (list = &rego->arches;
2242          (*list) != NULL;
2243          list = &(*list)->next)
2244       {
2245         if ((*list)->gdbarch == new_gdbarch)
2246           {
2247             struct gdbarch_list *this;
2248             if (gdbarch_debug)
2249               fprintf_unfiltered (gdb_stdlog,
2250                                   "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2251                                   (long) new_gdbarch,
2252                                   new_gdbarch->bfd_arch_info->printable_name);
2253             /* Unlink this.  */
2254             this = (*list);
2255             (*list) = this->next;
2256             /* Insert in the front.  */
2257             this->next = rego->arches;
2258             rego->arches = this;
2259             /* Copy the new architecture in.  */
2260             current_gdbarch = new_gdbarch;
2261             swapin_gdbarch_swap (new_gdbarch);
2262             architecture_changed_event ();
2263             return 1;
2264           }
2265       }
2266   }
2267
2268   /* Prepend this new architecture to the architecture list (keep the
2269      list sorted Most Recently Used).  */
2270   {
2271     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2272     this->next = rego->arches;
2273     this->gdbarch = new_gdbarch;
2274     rego->arches = this;
2275   }
2276
2277   /* Switch to this new architecture marking it initialized.  */
2278   current_gdbarch = new_gdbarch;
2279   current_gdbarch->initialized_p = 1;
2280   if (gdbarch_debug)
2281     {
2282       fprintf_unfiltered (gdb_stdlog,
2283                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2284                           (long) new_gdbarch,
2285                           new_gdbarch->bfd_arch_info->printable_name);
2286     }
2287
2288   /* Check that the newly installed architecture is valid.  Plug in
2289      any post init values.  */
2290   new_gdbarch->dump_tdep = rego->dump_tdep;
2291   verify_gdbarch (new_gdbarch);
2292
2293   /* Initialize the per-architecture memory (swap) areas.
2294      CURRENT_GDBARCH must be update before these modules are
2295      called. */
2296   init_gdbarch_swap (new_gdbarch);
2297
2298   /* Initialize the per-architecture data.  CURRENT_GDBARCH
2299      must be updated before these modules are called. */
2300   architecture_changed_event ();
2301
2302   if (gdbarch_debug)
2303     gdbarch_dump (current_gdbarch, gdb_stdlog);
2304
2305   return 1;
2306 }
2307
2308
2309 extern void _initialize_gdbarch (void);
2310
2311 void
2312 _initialize_gdbarch (void)
2313 {
2314   struct cmd_list_element *c;
2315
2316   add_show_from_set (add_set_cmd ("arch",
2317                                   class_maintenance,
2318                                   var_zinteger,
2319                                   (char *)&gdbarch_debug,
2320                                   "Set architecture debugging.\\n\\
2321 When non-zero, architecture debugging is enabled.", &setdebuglist),
2322                      &showdebuglist);
2323   c = add_set_cmd ("archdebug",
2324                    class_maintenance,
2325                    var_zinteger,
2326                    (char *)&gdbarch_debug,
2327                    "Set architecture debugging.\\n\\
2328 When non-zero, architecture debugging is enabled.", &setlist);
2329
2330   deprecate_cmd (c, "set debug arch");
2331   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2332 }
2333 EOF
2334
2335 # close things off
2336 exec 1>&2
2337 #../move-if-change new-gdbarch.c gdbarch.c
2338 compare_new gdbarch.c