gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 #
   5 # Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
   6 # Foundation, Inc.
   7 #
   8 #
   9 # This file is part of GDB.
  10 #
  11 # This program is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 2 of the License, or
  14 # (at your option) any later version.
  15 #
  16 # This program is distributed in the hope that it will be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with this program; if not, write to the Free Software
  23 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  24
  25 # Make certain that the script is running in an internationalized
  26 # environment.
  27 LANG=c ; export LANG
  28 LC_ALL=c ; export LC_ALL
  29
  30
  31 compare_new ()
  32 {
  33     file=$1
  34     if test ! -r ${file}
  35     then
  36         echo "${file} missing? cp new-${file} ${file}" 1>&2
  37     elif diff -u ${file} new-${file}
  38     then
  39         echo "${file} unchanged" 1>&2
  40     else
  41         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  42     fi
  43 }
  44
  45
  46 # Format of the input table
  47 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  48
  49 do_read ()
  50 {
  51     comment=""
  52     class=""
  53     while read line
  54     do
  55         if test "${line}" = ""
  56         then
  57             continue
  58         elif test "${line}" = "#" -a "${comment}" = ""
  59         then
  60             continue
  61         elif expr "${line}" : "#" > /dev/null
  62         then
  63             comment="${comment}
  64 ${line}"
  65         else
  66
  67             # The semantics of IFS varies between different SH's.  Some
  68             # treat ``::' as three fields while some treat it as just too.
  69             # Work around this by eliminating ``::'' ....
  70             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  71
  72             OFS="${IFS}" ; IFS="[:]"
  73             eval read ${read} <<EOF
  74 ${line}
  75 EOF
  76             IFS="${OFS}"
  77
  78             # .... and then going back through each field and strip out those
  79             # that ended up with just that space character.
  80             for r in ${read}
  81             do
  82                 if eval test \"\${${r}}\" = \"\ \"
  83                 then
  84                     eval ${r}=""
  85                 fi
  86             done
  87
  88             case "${level}" in
  89                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  90                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  91                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  92                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  93             esac
  94
  95             case "${class}" in
  96                 m ) staticdefault="${predefault}" ;;
  97                 M ) staticdefault="0" ;;
  98                 * ) test "${staticdefault}" || staticdefault=0 ;;
  99             esac
 100
 101             # come up with a format, use a few guesses for variables
 102             case ":${class}:${fmt}:${print}:" in
 103                 :[vV]::: )
 104                     if [ "${returntype}" = int ]
 105                     then
 106                         fmt="%d"
 107                         print="${macro}"
 108                     elif [ "${returntype}" = long ]
 109                     then
 110                         fmt="%ld"
 111                         print="${macro}"
 112                     fi
 113                     ;;
 114             esac
 115             test "${fmt}" || fmt="%ld"
 116             test "${print}" || print="(long) ${macro}"
 117
 118             case "${class}" in
 119             F | V | M )
 120                 case "${invalid_p}" in
 121                 "" )
 122                     if test -n "${predefault}"
 123                     then
 124                         #invalid_p="gdbarch->${function} == ${predefault}"
 125                         predicate="gdbarch->${function} != ${predefault}"
 126                     elif class_is_variable_p
 127                     then
 128                         predicate="gdbarch->${function} != 0"
 129                     elif class_is_function_p
 130                     then
 131                         predicate="gdbarch->${function} != NULL"
 132                     fi
 133                     ;;
 134                 * )
 135                     echo "Predicate function ${function} with invalid_p." 1>&2
 136                     kill $$
 137                     exit 1
 138                     ;;
 139                 esac
 140             esac
 141
 142             # PREDEFAULT is a valid fallback definition of MEMBER when
 143             # multi-arch is not enabled.  This ensures that the
 144             # default value, when multi-arch is the same as the
 145             # default value when not multi-arch.  POSTDEFAULT is
 146             # always a valid definition of MEMBER as this again
 147             # ensures consistency.
 148
 149             if [ -n "${postdefault}" ]
 150             then
 151                 fallbackdefault="${postdefault}"
 152             elif [ -n "${predefault}" ]
 153             then
 154                 fallbackdefault="${predefault}"
 155             else
 156                 fallbackdefault="0"
 157             fi
 158
 159             #NOT YET: See gdbarch.log for basic verification of
 160             # database
 161
 162             break
 163         fi
 164     done
 165     if [ -n "${class}" ]
 166     then
 167         true
 168     else
 169         false
 170     fi
 171 }
 172
 173
 174 fallback_default_p ()
 175 {
 176     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 177         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 178 }
 179
 180 class_is_variable_p ()
 181 {
 182     case "${class}" in
 183         *v* | *V* ) true ;;
 184         * ) false ;;
 185     esac
 186 }
 187
 188 class_is_function_p ()
 189 {
 190     case "${class}" in
 191         *f* | *F* | *m* | *M* ) true ;;
 192         * ) false ;;
 193     esac
 194 }
 195
 196 class_is_multiarch_p ()
 197 {
 198     case "${class}" in
 199         *m* | *M* ) true ;;
 200         * ) false ;;
 201     esac
 202 }
 203
 204 class_is_predicate_p ()
 205 {
 206     case "${class}" in
 207         *F* | *V* | *M* ) true ;;
 208         * ) false ;;
 209     esac
 210 }
 211
 212 class_is_info_p ()
 213 {
 214     case "${class}" in
 215         *i* ) true ;;
 216         * ) false ;;
 217     esac
 218 }
 219
 220
 221 # dump out/verify the doco
 222 for field in ${read}
 223 do
 224   case ${field} in
 225
 226     class ) : ;;
 227
 228         # # -> line disable
 229         # f -> function
 230         #   hiding a function
 231         # F -> function + predicate
 232         #   hiding a function + predicate to test function validity
 233         # v -> variable
 234         #   hiding a variable
 235         # V -> variable + predicate
 236         #   hiding a variable + predicate to test variables validity
 237         # i -> set from info
 238         #   hiding something from the ``struct info'' object
 239         # m -> multi-arch function
 240         #   hiding a multi-arch function (parameterised with the architecture)
 241         # M -> multi-arch function + predicate
 242         #   hiding a multi-arch function + predicate to test function validity
 243
 244     level ) : ;;
 245
 246         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 247         # LEVEL is a predicate on checking that a given method is
 248         # initialized (using INVALID_P).
 249
 250     macro ) : ;;
 251
 252         # The name of the MACRO that this method is to be accessed by.
 253
 254     returntype ) : ;;
 255
 256         # For functions, the return type; for variables, the data type
 257
 258     function ) : ;;
 259
 260         # For functions, the member function name; for variables, the
 261         # variable name.  Member function names are always prefixed with
 262         # ``gdbarch_'' for name-space purity.
 263
 264     formal ) : ;;
 265
 266         # The formal argument list.  It is assumed that the formal
 267         # argument list includes the actual name of each list element.
 268         # A function with no arguments shall have ``void'' as the
 269         # formal argument list.
 270
 271     actual ) : ;;
 272
 273         # The list of actual arguments.  The arguments specified shall
 274         # match the FORMAL list given above.  Functions with out
 275         # arguments leave this blank.
 276
 277     attrib ) : ;;
 278
 279         # Any GCC attributes that should be attached to the function
 280         # declaration.  At present this field is unused.
 281
 282     staticdefault ) : ;;
 283
 284         # To help with the GDB startup a static gdbarch object is
 285         # created.  STATICDEFAULT is the value to insert into that
 286         # static gdbarch object.  Since this a static object only
 287         # simple expressions can be used.
 288
 289         # If STATICDEFAULT is empty, zero is used.
 290
 291     predefault ) : ;;
 292
 293         # An initial value to assign to MEMBER of the freshly
 294         # malloc()ed gdbarch object.  After initialization, the
 295         # freshly malloc()ed object is passed to the target
 296         # architecture code for further updates.
 297
 298         # If PREDEFAULT is empty, zero is used.
 299
 300         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 301         # INVALID_P are specified, PREDEFAULT will be used as the
 302         # default for the non- multi-arch target.
 303
 304         # A zero PREDEFAULT function will force the fallback to call
 305         # internal_error().
 306
 307         # Variable declarations can refer to ``gdbarch'' which will
 308         # contain the current architecture.  Care should be taken.
 309
 310     postdefault ) : ;;
 311
 312         # A value to assign to MEMBER of the new gdbarch object should
 313         # the target architecture code fail to change the PREDEFAULT
 314         # value.
 315
 316         # If POSTDEFAULT is empty, no post update is performed.
 317
 318         # If both INVALID_P and POSTDEFAULT are non-empty then
 319         # INVALID_P will be used to determine if MEMBER should be
 320         # changed to POSTDEFAULT.
 321
 322         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 323         # specified, POSTDEFAULT will be used as the default for the
 324         # non- multi-arch target (regardless of the value of
 325         # PREDEFAULT).
 326
 327         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 328
 329         # Variable declarations can refer to ``current_gdbarch'' which
 330         # will contain the current architecture.  Care should be
 331         # taken.
 332
 333     invalid_p ) : ;;
 334
 335         # A predicate equation that validates MEMBER.  Non-zero is
 336         # returned if the code creating the new architecture failed to
 337         # initialize MEMBER or the initialized the member is invalid.
 338         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 339         # that value.  If POSTDEFAULT is empty then internal_error()
 340         # is called.
 341
 342         # If INVALID_P is empty, a check that MEMBER is no longer
 343         # equal to PREDEFAULT is used.
 344
 345         # The expression ``0'' disables the INVALID_P check making
 346         # PREDEFAULT a legitimate value.
 347
 348         # See also PREDEFAULT and POSTDEFAULT.
 349
 350     fmt ) : ;;
 351
 352         # printf style format string that can be used to print out the
 353         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 354         # ignored and the function address is printed.
 355
 356         # If FMT is empty, ``%ld'' is used.
 357
 358     print ) : ;;
 359
 360         # An optional equation that casts MEMBER to a value suitable
 361         # for formatting by FMT.
 362
 363         # If PRINT is empty, ``(long)'' is used.
 364
 365     print_p ) : ;;
 366
 367         # An optional indicator for any predicte to wrap around the
 368         # print member code.
 369
 370         #   () -> Call a custom function to do the dump.
 371         #   exp -> Wrap print up in ``if (${print_p}) ...
 372         #   ``'' -> No predicate
 373
 374         # If PRINT_P is empty, ``1'' is always used.
 375
 376     description ) : ;;
 377
 378         # Currently unused.
 379
 380     *)
 381         echo "Bad field ${field}"
 382         exit 1;;
 383   esac
 384 done
 385
 386
 387 function_list ()
 388 {
 389   # See below (DOCO) for description of each field
 390   cat <<EOF
 391 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 392 #
 393 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
 394 #
 395 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
 396 # Number of bits in a char or unsigned char for the target machine.
 397 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 398 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 399 #
 400 # Number of bits in a short or unsigned short for the target machine.
 401 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 402 # Number of bits in an int or unsigned int for the target machine.
 403 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 404 # Number of bits in a long or unsigned long for the target machine.
 405 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 406 # Number of bits in a long long or unsigned long long for the target
 407 # machine.
 408 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 409 # Number of bits in a float for the target machine.
 410 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 411 # Number of bits in a double for the target machine.
 412 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 413 # Number of bits in a long double for the target machine.
 414 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
 415 # For most targets, a pointer on the target and its representation as an
 416 # address in GDB have the same size and "look the same".  For such a
 417 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 418 # / addr_bit will be set from it.
 419 #
 420 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 421 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 422 #
 423 # ptr_bit is the size of a pointer on the target
 424 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 425 # addr_bit is the size of a target address as represented in gdb
 426 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 427 # Number of bits in a BFD_VMA for the target object file format.
 428 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 429 #
 430 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
 431 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
 432 #
 433 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
 434 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 435 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
 436 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
 437 # Function for getting target's idea of a frame pointer.  FIXME: GDB's
 438 # whole scheme for dealing with "frames" and "frame pointers" needs a
 439 # serious shakedown.
 440 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
 441 #
 442 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
 443 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
 444 #
 445 v:2:NUM_REGS:int:num_regs::::0:-1
 446 # This macro gives the number of pseudo-registers that live in the
 447 # register namespace but do not get fetched or stored on the target.
 448 # These pseudo-registers may be aliases for other registers,
 449 # combinations of other registers, or they may be computed by GDB.
 450 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 451
 452 # GDB's standard (or well known) register numbers.  These can map onto
 453 # a real register or a pseudo (computed) register or not be defined at
 454 # all (-1).
 455 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
 456 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
 457 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
 458 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
 459 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 460 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 461 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 462 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 463 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 464 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 465 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 466 # Convert from an sdb register number to an internal gdb register number.
 467 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 468 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 469 f::REGISTER_NAME:const char *:register_name:int regnr:regnr
 470
 471 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
 472 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr
 473 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
 474 F:2:DEPRECATED_REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr
 475 # DEPRECATED_REGISTER_BYTES can be deleted.  The value is computed
 476 # from REGISTER_TYPE.
 477 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
 478 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
 479 # register offsets computed using just REGISTER_TYPE, this can be
 480 # deleted.  See: maint print registers.  NOTE: cagney/2002-05-02: This
 481 # function with predicate has a valid (callable) initial value.  As a
 482 # consequence, even when the predicate is false, the corresponding
 483 # function works.  This simplifies the migration process - old code,
 484 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
 485 F::DEPRECATED_REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
 486 # If all registers have identical raw and virtual sizes and those
 487 # sizes agree with the value computed from REGISTER_TYPE,
 488 # DEPRECATED_REGISTER_RAW_SIZE can be deleted.  See: maint print
 489 # registers.
 490 F:2:DEPRECATED_REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 491 # If all registers have identical raw and virtual sizes and those
 492 # sizes agree with the value computed from REGISTER_TYPE,
 493 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted.  See: maint print
 494 # registers.
 495 F:2:DEPRECATED_REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 496 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted.  It has been
 497 # replaced by the constant MAX_REGISTER_SIZE.
 498 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
 499 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted.  It has been
 500 # replaced by the constant MAX_REGISTER_SIZE.
 501 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
 502
 503 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
 504 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info
 505 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 506 # SAVE_DUMMY_FRAME_TOS.
 507 F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp
 508 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 509 # DEPRECATED_FP_REGNUM.
 510 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
 511 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 512 # DEPRECATED_TARGET_READ_FP.
 513 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
 514
 515 # See gdbint.texinfo.  See infcall.c.  New, all singing all dancing,
 516 # replacement for DEPRECATED_PUSH_ARGUMENTS.
 517 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
 518 # PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS.
 519 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
 520 # DEPRECATED_USE_GENERIC_DUMMY_FRAMES can be deleted.  Always true.
 521 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
 522 # Implement PUSH_RETURN_ADDRESS, and then merge in
 523 # DEPRECATED_PUSH_RETURN_ADDRESS.
 524 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
 525 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
 526 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
 527 # DEPRECATED_REGISTER_SIZE can be deleted.
 528 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
 529 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
 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_WORDS can be deleted.
 535 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 536 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
 537 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 538 # DEPRECATED_FIX_CALL_DUMMY can be deleted.  For the SPARC, implement
 539 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
 540 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
 541 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
 542 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
 543 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
 544 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
 545
 546 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 547 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
 548 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 549 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 550 # MAP a GDB RAW register number onto a simulator register number.  See
 551 # also include/...-sim.h.
 552 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 553 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
 554 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 555 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 556 # setjmp/longjmp support.
 557 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
 558 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 559 # (callable) initial value.  As a consequence, even when the predicate
 560 # is false, the corresponding function works.  This simplifies the
 561 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 562 # doesn't need to be modified.
 563 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::deprecated_pc_in_call_dummy:deprecated_pc_in_call_dummy
 564 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 565 #
 566 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 567 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
 568 #
 569 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 570 # For raw <-> cooked register conversions, replaced by pseudo registers.
 571 F::DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr
 572 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 573 # For raw <-> cooked register conversions, replaced by pseudo registers.
 574 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
 575 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 576 # For raw <-> cooked register conversions, replaced by pseudo registers.
 577 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
 578 #
 579 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
 580 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
 581 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
 582 #
 583 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 584 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
 585 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 586 #
 587 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
 588 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 589 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
 590
 591 # It has been suggested that this, well actually its predecessor,
 592 # should take the type/value of the function to be called and not the
 593 # return type.  This is left as an exercise for the reader.
 594
 595 M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf
 596
 597 # The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
 598 # STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
 599 # into RETURN_VALUE.
 600
 601 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 602 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
 603 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
 604 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 605 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 606 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
 607
 608 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 609 # ABI suitable for the implementation of a robust extract
 610 # struct-convention return-value address method (the sparc saves the
 611 # address in the callers frame).  All the other cases so far examined,
 612 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 613 # erreneous - the code was incorrectly assuming that the return-value
 614 # address, stored in a register, was preserved across the entire
 615 # function call.
 616
 617 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 618 # the ABIs that are still to be analyzed - perhaps this should simply
 619 # be deleted.  The commented out extract_returned_value_address method
 620 # is provided as a starting point for the 32-bit SPARC.  It, or
 621 # something like it, along with changes to both infcmd.c and stack.c
 622 # will be needed for that case to work.  NB: It is passed the callers
 623 # frame since it is only after the callee has returned that this
 624 # function is used.
 625
 626 #M:::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
 627 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
 628
 629 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
 630 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
 631 #
 632 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 633 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 634 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
 635 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
 636 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 637 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 638 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0
 639 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0
 640 #
 641 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
 642 #
 643 v::FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:::0
 644 # DEPRECATED_FRAMELESS_FUNCTION_INVOCATION is not needed.  The new
 645 # frame code works regardless of the type of frame - frameless,
 646 # stackless, or normal.
 647 F::DEPRECATED_FRAMELESS_FUNCTION_INVOCATION:int:deprecated_frameless_function_invocation:struct frame_info *fi:fi
 648 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
 649 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
 650 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 651 # note, per UNWIND_PC's doco, that while the two have similar
 652 # interfaces they have very different underlying implementations.
 653 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
 654 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
 655 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
 656 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
 657 # frame-base.  Enable frame-base before frame-unwind.
 658 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 659 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 660 # frame-base.  Enable frame-base before frame-unwind.
 661 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 662 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 663 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
 664 #
 665 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
 666 # to frame_align and the requirement that methods such as
 667 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
 668 # alignment.
 669 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
 670 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 671 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 672 # stabs_argument_has_addr.
 673 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
 674 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
 675 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
 676 v:2:PARM_BOUNDARY:int:parm_boundary
 677 #
 678 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 679 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 680 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 681 m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0
 682 # On some machines there are bits in addresses which are not really
 683 # part of the address, but are used by the kernel, the hardware, etc.
 684 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 685 # we get a "real" address such as one would find in a symbol table.
 686 # This is used only for addresses of instructions, and even then I'm
 687 # not sure it's used in all contexts.  It exists to deal with there
 688 # being a few stray bits in the PC which would mislead us, not as some
 689 # sort of generic thing to handle alignment or segmentation (it's
 690 # possible it should be in TARGET_READ_PC instead).
 691 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 692 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 693 # ADDR_BITS_REMOVE.
 694 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 695 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 696 # the target needs software single step.  An ISA method to implement it.
 697 #
 698 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 699 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 700 #
 701 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 702 # single step.  If not, then implement single step using breakpoints.
 703 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
 704 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 705 # disassembler.  Perhaphs objdump can handle it?
 706 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
 707 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 708
 709
 710 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 711 # evaluates non-zero, this is the address where the debugger will place
 712 # a step-resume breakpoint to get us past the dynamic linker.
 713 m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
 714 # For SVR4 shared libraries, each call goes through a small piece of
 715 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 716 # to nonzero if we are currently stopped in one of these.
 717 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 718
 719 # Some systems also have trampoline code for returning from shared libs.
 720 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 721
 722 # NOTE: cagney/2004-03-23: DEPRECATED_SIGTRAMP_START,
 723 # DEPRECATED_SIGTRAMP_END, and DEPRECATED_PC_IN_SIGTRAMP have all been
 724 # superseeded by signal trampoline frame sniffers.
 725 F::DEPRECATED_PC_IN_SIGTRAMP:int:deprecated_pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp
 726 F:2:DEPRECATED_SIGTRAMP_START:CORE_ADDR:deprecated_sigtramp_start:CORE_ADDR pc:pc
 727 F:2:DEPRECATED_SIGTRAMP_END:CORE_ADDR:deprecated_sigtramp_end:CORE_ADDR pc:pc
 728 # A target might have problems with watchpoints as soon as the stack
 729 # frame of the current function has been destroyed.  This mostly happens
 730 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 731 # is defined to return a non-zero value if either the given addr is one
 732 # instruction after the stack destroying instruction up to the trailing
 733 # return instruction or if we can figure out that the stack frame has
 734 # already been invalidated regardless of the value of addr.  Targets
 735 # which don't suffer from that problem could just let this functionality
 736 # untouched.
 737 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 738 # Given a vector of command-line arguments, return a newly allocated
 739 # string which, when passed to the create_inferior function, will be
 740 # parsed (on Unix systems, by the shell) to yield the same vector.
 741 # This function should call error() if the argument vector is not
 742 # representable for this target or if this target does not support
 743 # command-line arguments.
 744 # ARGC is the number of elements in the vector.
 745 # ARGV is an array of strings, one per argument.
 746 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 747 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
 748 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
 749 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 750 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 751 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 752 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 753 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
 754 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
 755 # Is a register in a group
 756 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 757 # Fetch the pointer to the ith function argument.
 758 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 759
 760 # Return the appropriate register set for a core file section with
 761 # name SECT_NAME and size SECT_SIZE.
 762 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
 763 EOF
 764 }
 765
 766 #
 767 # The .log file
 768 #
 769 exec > new-gdbarch.log
 770 function_list | while do_read
 771 do
 772     cat <<EOF
 773 ${class} ${macro}(${actual})
 774   ${returntype} ${function} ($formal)${attrib}
 775 EOF
 776     for r in ${read}
 777     do
 778         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 779     done
 780     if class_is_predicate_p && fallback_default_p
 781     then
 782         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 783         kill $$
 784         exit 1
 785     fi
 786     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 787     then
 788         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 789         kill $$
 790         exit 1
 791     fi
 792     if class_is_multiarch_p
 793     then
 794         if class_is_predicate_p ; then :
 795         elif test "x${predefault}" = "x"
 796         then
 797             echo "Error: pure multi-arch function must have a predefault" 1>&2
 798             kill $$
 799             exit 1
 800         fi
 801     fi
 802     echo ""
 803 done
 804
 805 exec 1>&2
 806 compare_new gdbarch.log
 807
 808
 809 copyright ()
 810 {
 811 cat <<EOF
 812 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 813
 814 /* Dynamic architecture support for GDB, the GNU debugger.
 815
 816    Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
 817    Software Foundation, Inc.
 818
 819    This file is part of GDB.
 820
 821    This program is free software; you can redistribute it and/or modify
 822    it under the terms of the GNU General Public License as published by
 823    the Free Software Foundation; either version 2 of the License, or
 824    (at your option) any later version.
 825
 826    This program is distributed in the hope that it will be useful,
 827    but WITHOUT ANY WARRANTY; without even the implied warranty of
 828    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 829    GNU General Public License for more details.
 830
 831    You should have received a copy of the GNU General Public License
 832    along with this program; if not, write to the Free Software
 833    Foundation, Inc., 59 Temple Place - Suite 330,
 834    Boston, MA 02111-1307, USA.  */
 835
 836 /* This file was created with the aid of \`\`gdbarch.sh''.
 837
 838    The Bourne shell script \`\`gdbarch.sh'' creates the files
 839    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 840    against the existing \`\`gdbarch.[hc]''.  Any differences found
 841    being reported.
 842
 843    If editing this file, please also run gdbarch.sh and merge any
 844    changes into that script. Conversely, when making sweeping changes
 845    to this file, modifying gdbarch.sh and using its output may prove
 846    easier. */
 847
 848 EOF
 849 }
 850
 851 #
 852 # The .h file
 853 #
 854
 855 exec > new-gdbarch.h
 856 copyright
 857 cat <<EOF
 858 #ifndef GDBARCH_H
 859 #define GDBARCH_H
 860
 861 struct floatformat;
 862 struct ui_file;
 863 struct frame_info;
 864 struct value;
 865 struct objfile;
 866 struct minimal_symbol;
 867 struct regcache;
 868 struct reggroup;
 869 struct regset;
 870 struct disassemble_info;
 871 struct target_ops;
 872 struct obstack;
 873
 874 extern struct gdbarch *current_gdbarch;
 875
 876
 877 /* If any of the following are defined, the target wasn't correctly
 878    converted. */
 879
 880 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 881 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 882 #endif
 883 EOF
 884
 885 # function typedef's
 886 printf "\n"
 887 printf "\n"
 888 printf "/* The following are pre-initialized by GDBARCH. */\n"
 889 function_list | while do_read
 890 do
 891     if class_is_info_p
 892     then
 893         printf "\n"
 894         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 895         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 896         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 897         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 898         printf "#endif\n"
 899         printf "#if !defined (${macro})\n"
 900         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 901         printf "#endif\n"
 902     fi
 903 done
 904
 905 # function typedef's
 906 printf "\n"
 907 printf "\n"
 908 printf "/* The following are initialized by the target dependent code. */\n"
 909 function_list | while do_read
 910 do
 911     if [ -n "${comment}" ]
 912     then
 913         echo "${comment}" | sed \
 914             -e '2 s,#,/*,' \
 915             -e '3,$ s,#,  ,' \
 916             -e '$ s,$, */,'
 917     fi
 918     if class_is_multiarch_p
 919     then
 920         if class_is_predicate_p
 921         then
 922             printf "\n"
 923             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 924         fi
 925     else
 926         if class_is_predicate_p
 927         then
 928             printf "\n"
 929             printf "#if defined (${macro})\n"
 930             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 931             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 932             printf "#if !defined (${macro}_P)\n"
 933             printf "#define ${macro}_P() (1)\n"
 934             printf "#endif\n"
 935             printf "#endif\n"
 936             printf "\n"
 937             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 938             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 939             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 940             printf "#endif\n"
 941             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 942             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 943             printf "#endif\n"
 944         fi
 945     fi
 946     if class_is_variable_p
 947     then
 948         printf "\n"
 949         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 950         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 951         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 952         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 953         printf "#endif\n"
 954         printf "#if !defined (${macro})\n"
 955         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 956         printf "#endif\n"
 957     fi
 958     if class_is_function_p
 959     then
 960         printf "\n"
 961         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 962         then
 963             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 964         elif class_is_multiarch_p
 965         then
 966             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 967         else
 968             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 969         fi
 970         if [ "x${formal}" = "xvoid" ]
 971         then
 972           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 973         else
 974           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 975         fi
 976         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 977         if class_is_multiarch_p ; then :
 978         else
 979             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 980             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 981             printf "#endif\n"
 982             if [ "x${actual}" = "x" ]
 983             then
 984                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
 985             elif [ "x${actual}" = "x-" ]
 986             then
 987                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
 988             else
 989                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
 990             fi
 991             printf "#if !defined (${macro})\n"
 992             if [ "x${actual}" = "x" ]
 993             then
 994                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 995             elif [ "x${actual}" = "x-" ]
 996             then
 997                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 998             else
 999                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
1000             fi
1001             printf "#endif\n"
1002         fi
1003     fi
1004 done
1005
1006 # close it off
1007 cat <<EOF
1008
1009 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1010
1011
1012 /* Mechanism for co-ordinating the selection of a specific
1013    architecture.
1014
1015    GDB targets (*-tdep.c) can register an interest in a specific
1016    architecture.  Other GDB components can register a need to maintain
1017    per-architecture data.
1018
1019    The mechanisms below ensures that there is only a loose connection
1020    between the set-architecture command and the various GDB
1021    components.  Each component can independently register their need
1022    to maintain architecture specific data with gdbarch.
1023
1024    Pragmatics:
1025
1026    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1027    didn't scale.
1028
1029    The more traditional mega-struct containing architecture specific
1030    data for all the various GDB components was also considered.  Since
1031    GDB is built from a variable number of (fairly independent)
1032    components it was determined that the global aproach was not
1033    applicable. */
1034
1035
1036 /* Register a new architectural family with GDB.
1037
1038    Register support for the specified ARCHITECTURE with GDB.  When
1039    gdbarch determines that the specified architecture has been
1040    selected, the corresponding INIT function is called.
1041
1042    --
1043
1044    The INIT function takes two parameters: INFO which contains the
1045    information available to gdbarch about the (possibly new)
1046    architecture; ARCHES which is a list of the previously created
1047    \`\`struct gdbarch'' for this architecture.
1048
1049    The INFO parameter is, as far as possible, be pre-initialized with
1050    information obtained from INFO.ABFD or the previously selected
1051    architecture.
1052
1053    The ARCHES parameter is a linked list (sorted most recently used)
1054    of all the previously created architures for this architecture
1055    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1056    values from the previously selected architecture for this
1057    architecture family.  The global \`\`current_gdbarch'' shall not be
1058    used.
1059
1060    The INIT function shall return any of: NULL - indicating that it
1061    doesn't recognize the selected architecture; an existing \`\`struct
1062    gdbarch'' from the ARCHES list - indicating that the new
1063    architecture is just a synonym for an earlier architecture (see
1064    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1065    - that describes the selected architecture (see gdbarch_alloc()).
1066
1067    The DUMP_TDEP function shall print out all target specific values.
1068    Care should be taken to ensure that the function works in both the
1069    multi-arch and non- multi-arch cases. */
1070
1071 struct gdbarch_list
1072 {
1073   struct gdbarch *gdbarch;
1074   struct gdbarch_list *next;
1075 };
1076
1077 struct gdbarch_info
1078 {
1079   /* Use default: NULL (ZERO). */
1080   const struct bfd_arch_info *bfd_arch_info;
1081
1082   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1083   int byte_order;
1084
1085   /* Use default: NULL (ZERO). */
1086   bfd *abfd;
1087
1088   /* Use default: NULL (ZERO). */
1089   struct gdbarch_tdep_info *tdep_info;
1090
1091   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1092   enum gdb_osabi osabi;
1093 };
1094
1095 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1096 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1097
1098 /* DEPRECATED - use gdbarch_register() */
1099 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1100
1101 extern void gdbarch_register (enum bfd_architecture architecture,
1102                               gdbarch_init_ftype *,
1103                               gdbarch_dump_tdep_ftype *);
1104
1105
1106 /* Return a freshly allocated, NULL terminated, array of the valid
1107    architecture names.  Since architectures are registered during the
1108    _initialize phase this function only returns useful information
1109    once initialization has been completed. */
1110
1111 extern const char **gdbarch_printable_names (void);
1112
1113
1114 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1115    matches the information provided by INFO. */
1116
1117 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1118
1119
1120 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1121    basic initialization using values obtained from the INFO andTDEP
1122    parameters.  set_gdbarch_*() functions are called to complete the
1123    initialization of the object. */
1124
1125 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1126
1127
1128 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1129    It is assumed that the caller freeds the \`\`struct
1130    gdbarch_tdep''. */
1131
1132 extern void gdbarch_free (struct gdbarch *);
1133
1134
1135 /* Helper function.  Allocate memory from the \`\`struct gdbarch''
1136    obstack.  The memory is freed when the corresponding architecture
1137    is also freed.  */
1138
1139 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1140 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1141 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1142
1143
1144 /* Helper function. Force an update of the current architecture.
1145
1146    The actual architecture selected is determined by INFO, \`\`(gdb) set
1147    architecture'' et.al., the existing architecture and BFD's default
1148    architecture.  INFO should be initialized to zero and then selected
1149    fields should be updated.
1150
1151    Returns non-zero if the update succeeds */
1152
1153 extern int gdbarch_update_p (struct gdbarch_info info);
1154
1155
1156 /* Helper function.  Find an architecture matching info.
1157
1158    INFO should be initialized using gdbarch_info_init, relevant fields
1159    set, and then finished using gdbarch_info_fill.
1160
1161    Returns the corresponding architecture, or NULL if no matching
1162    architecture was found.  "current_gdbarch" is not updated.  */
1163
1164 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1165
1166
1167 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1168
1169    FIXME: kettenis/20031124: Of the functions that follow, only
1170    gdbarch_from_bfd is supposed to survive.  The others will
1171    dissappear since in the future GDB will (hopefully) be truly
1172    multi-arch.  However, for now we're still stuck with the concept of
1173    a single active architecture.  */
1174
1175 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1176
1177
1178 /* Register per-architecture data-pointer.
1179
1180    Reserve space for a per-architecture data-pointer.  An identifier
1181    for the reserved data-pointer is returned.  That identifer should
1182    be saved in a local static variable.
1183
1184    Memory for the per-architecture data shall be allocated using
1185    gdbarch_obstack_zalloc.  That memory will be deleted when the
1186    corresponding architecture object is deleted.
1187
1188    When a previously created architecture is re-selected, the
1189    per-architecture data-pointer for that previous architecture is
1190    restored.  INIT() is not re-called.
1191
1192    Multiple registrarants for any architecture are allowed (and
1193    strongly encouraged).  */
1194
1195 struct gdbarch_data;
1196
1197 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1198 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1199 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1200 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1201 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1202                                          struct gdbarch_data *data,
1203                                          void *pointer);
1204
1205 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1206
1207
1208
1209 /* Register per-architecture memory region.
1210
1211    Provide a memory-region swap mechanism.  Per-architecture memory
1212    region are created.  These memory regions are swapped whenever the
1213    architecture is changed.  For a new architecture, the memory region
1214    is initialized with zero (0) and the INIT function is called.
1215
1216    Memory regions are swapped / initialized in the order that they are
1217    registered.  NULL DATA and/or INIT values can be specified.
1218
1219    New code should use gdbarch_data_register_*(). */
1220
1221 typedef void (gdbarch_swap_ftype) (void);
1222 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1223 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1224
1225
1226
1227 /* Set the dynamic target-system-dependent parameters (architecture,
1228    byte-order, ...) using information found in the BFD */
1229
1230 extern void set_gdbarch_from_file (bfd *);
1231
1232
1233 /* Initialize the current architecture to the "first" one we find on
1234    our list.  */
1235
1236 extern void initialize_current_architecture (void);
1237
1238 /* gdbarch trace variable */
1239 extern int gdbarch_debug;
1240
1241 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1242
1243 #endif
1244 EOF
1245 exec 1>&2
1246 #../move-if-change new-gdbarch.h gdbarch.h
1247 compare_new gdbarch.h
1248
1249
1250 #
1251 # C file
1252 #
1253
1254 exec > new-gdbarch.c
1255 copyright
1256 cat <<EOF
1257
1258 #include "defs.h"
1259 #include "arch-utils.h"
1260
1261 #include "gdbcmd.h"
1262 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1263 #include "symcat.h"
1264
1265 #include "floatformat.h"
1266
1267 #include "gdb_assert.h"
1268 #include "gdb_string.h"
1269 #include "gdb-events.h"
1270 #include "reggroups.h"
1271 #include "osabi.h"
1272 #include "gdb_obstack.h"
1273
1274 /* Static function declarations */
1275
1276 static void alloc_gdbarch_data (struct gdbarch *);
1277
1278 /* Non-zero if we want to trace architecture code.  */
1279
1280 #ifndef GDBARCH_DEBUG
1281 #define GDBARCH_DEBUG 0
1282 #endif
1283 int gdbarch_debug = GDBARCH_DEBUG;
1284
1285 EOF
1286
1287 # gdbarch open the gdbarch object
1288 printf "\n"
1289 printf "/* Maintain the struct gdbarch object */\n"
1290 printf "\n"
1291 printf "struct gdbarch\n"
1292 printf "{\n"
1293 printf "  /* Has this architecture been fully initialized?  */\n"
1294 printf "  int initialized_p;\n"
1295 printf "\n"
1296 printf "  /* An obstack bound to the lifetime of the architecture.  */\n"
1297 printf "  struct obstack *obstack;\n"
1298 printf "\n"
1299 printf "  /* basic architectural information */\n"
1300 function_list | while do_read
1301 do
1302     if class_is_info_p
1303     then
1304         printf "  ${returntype} ${function};\n"
1305     fi
1306 done
1307 printf "\n"
1308 printf "  /* target specific vector. */\n"
1309 printf "  struct gdbarch_tdep *tdep;\n"
1310 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1311 printf "\n"
1312 printf "  /* per-architecture data-pointers */\n"
1313 printf "  unsigned nr_data;\n"
1314 printf "  void **data;\n"
1315 printf "\n"
1316 printf "  /* per-architecture swap-regions */\n"
1317 printf "  struct gdbarch_swap *swap;\n"
1318 printf "\n"
1319 cat <<EOF
1320   /* Multi-arch values.
1321
1322      When extending this structure you must:
1323
1324      Add the field below.
1325
1326      Declare set/get functions and define the corresponding
1327      macro in gdbarch.h.
1328
1329      gdbarch_alloc(): If zero/NULL is not a suitable default,
1330      initialize the new field.
1331
1332      verify_gdbarch(): Confirm that the target updated the field
1333      correctly.
1334
1335      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1336      field is dumped out
1337
1338      \`\`startup_gdbarch()'': Append an initial value to the static
1339      variable (base values on the host's c-type system).
1340
1341      get_gdbarch(): Implement the set/get functions (probably using
1342      the macro's as shortcuts).
1343
1344      */
1345
1346 EOF
1347 function_list | while do_read
1348 do
1349     if class_is_variable_p
1350     then
1351         printf "  ${returntype} ${function};\n"
1352     elif class_is_function_p
1353     then
1354         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1355     fi
1356 done
1357 printf "};\n"
1358
1359 # A pre-initialized vector
1360 printf "\n"
1361 printf "\n"
1362 cat <<EOF
1363 /* The default architecture uses host values (for want of a better
1364    choice). */
1365 EOF
1366 printf "\n"
1367 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1368 printf "\n"
1369 printf "struct gdbarch startup_gdbarch =\n"
1370 printf "{\n"
1371 printf "  1, /* Always initialized.  */\n"
1372 printf "  NULL, /* The obstack.  */\n"
1373 printf "  /* basic architecture information */\n"
1374 function_list | while do_read
1375 do
1376     if class_is_info_p
1377     then
1378         printf "  ${staticdefault},  /* ${function} */\n"
1379     fi
1380 done
1381 cat <<EOF
1382   /* target specific vector and its dump routine */
1383   NULL, NULL,
1384   /*per-architecture data-pointers and swap regions */
1385   0, NULL, NULL,
1386   /* Multi-arch values */
1387 EOF
1388 function_list | while do_read
1389 do
1390     if class_is_function_p || class_is_variable_p
1391     then
1392         printf "  ${staticdefault},  /* ${function} */\n"
1393     fi
1394 done
1395 cat <<EOF
1396   /* startup_gdbarch() */
1397 };
1398
1399 struct gdbarch *current_gdbarch = &startup_gdbarch;
1400 EOF
1401
1402 # Create a new gdbarch struct
1403 cat <<EOF
1404
1405 /* Create a new \`\`struct gdbarch'' based on information provided by
1406    \`\`struct gdbarch_info''. */
1407 EOF
1408 printf "\n"
1409 cat <<EOF
1410 struct gdbarch *
1411 gdbarch_alloc (const struct gdbarch_info *info,
1412                struct gdbarch_tdep *tdep)
1413 {
1414   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1415      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1416      the current local architecture and not the previous global
1417      architecture.  This ensures that the new architectures initial
1418      values are not influenced by the previous architecture.  Once
1419      everything is parameterised with gdbarch, this will go away.  */
1420   struct gdbarch *current_gdbarch;
1421
1422   /* Create an obstack for allocating all the per-architecture memory,
1423      then use that to allocate the architecture vector.  */
1424   struct obstack *obstack = XMALLOC (struct obstack);
1425   obstack_init (obstack);
1426   current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1427   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1428   current_gdbarch->obstack = obstack;
1429
1430   alloc_gdbarch_data (current_gdbarch);
1431
1432   current_gdbarch->tdep = tdep;
1433 EOF
1434 printf "\n"
1435 function_list | while do_read
1436 do
1437     if class_is_info_p
1438     then
1439         printf "  current_gdbarch->${function} = info->${function};\n"
1440     fi
1441 done
1442 printf "\n"
1443 printf "  /* Force the explicit initialization of these. */\n"
1444 function_list | while do_read
1445 do
1446     if class_is_function_p || class_is_variable_p
1447     then
1448         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1449         then
1450           printf "  current_gdbarch->${function} = ${predefault};\n"
1451         fi
1452     fi
1453 done
1454 cat <<EOF
1455   /* gdbarch_alloc() */
1456
1457   return current_gdbarch;
1458 }
1459 EOF
1460
1461 # Free a gdbarch struct.
1462 printf "\n"
1463 printf "\n"
1464 cat <<EOF
1465 /* Allocate extra space using the per-architecture obstack.  */
1466
1467 void *
1468 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1469 {
1470   void *data = obstack_alloc (arch->obstack, size);
1471   memset (data, 0, size);
1472   return data;
1473 }
1474
1475
1476 /* Free a gdbarch struct.  This should never happen in normal
1477    operation --- once you've created a gdbarch, you keep it around.
1478    However, if an architecture's init function encounters an error
1479    building the structure, it may need to clean up a partially
1480    constructed gdbarch.  */
1481
1482 void
1483 gdbarch_free (struct gdbarch *arch)
1484 {
1485   struct obstack *obstack;
1486   gdb_assert (arch != NULL);
1487   gdb_assert (!arch->initialized_p);
1488   obstack = arch->obstack;
1489   obstack_free (obstack, 0); /* Includes the ARCH.  */
1490   xfree (obstack);
1491 }
1492 EOF
1493
1494 # verify a new architecture
1495 cat <<EOF
1496
1497
1498 /* Ensure that all values in a GDBARCH are reasonable.  */
1499
1500 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1501    just happens to match the global variable \`\`current_gdbarch''.  That
1502    way macros refering to that variable get the local and not the global
1503    version - ulgh.  Once everything is parameterised with gdbarch, this
1504    will go away. */
1505
1506 static void
1507 verify_gdbarch (struct gdbarch *current_gdbarch)
1508 {
1509   struct ui_file *log;
1510   struct cleanup *cleanups;
1511   long dummy;
1512   char *buf;
1513   log = mem_fileopen ();
1514   cleanups = make_cleanup_ui_file_delete (log);
1515   /* fundamental */
1516   if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1517     fprintf_unfiltered (log, "\n\tbyte-order");
1518   if (current_gdbarch->bfd_arch_info == NULL)
1519     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1520   /* Check those that need to be defined for the given multi-arch level. */
1521 EOF
1522 function_list | while do_read
1523 do
1524     if class_is_function_p || class_is_variable_p
1525     then
1526         if [ "x${invalid_p}" = "x0" ]
1527         then
1528             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1529         elif class_is_predicate_p
1530         then
1531             printf "  /* Skip verify of ${function}, has predicate */\n"
1532         # FIXME: See do_read for potential simplification
1533         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1534         then
1535             printf "  if (${invalid_p})\n"
1536             printf "    current_gdbarch->${function} = ${postdefault};\n"
1537         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1538         then
1539             printf "  if (current_gdbarch->${function} == ${predefault})\n"
1540             printf "    current_gdbarch->${function} = ${postdefault};\n"
1541         elif [ -n "${postdefault}" ]
1542         then
1543             printf "  if (current_gdbarch->${function} == 0)\n"
1544             printf "    current_gdbarch->${function} = ${postdefault};\n"
1545         elif [ -n "${invalid_p}" ]
1546         then
1547             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1548             printf "      && (${invalid_p}))\n"
1549             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1550         elif [ -n "${predefault}" ]
1551         then
1552             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1553             printf "      && (current_gdbarch->${function} == ${predefault}))\n"
1554             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1555         fi
1556     fi
1557 done
1558 cat <<EOF
1559   buf = ui_file_xstrdup (log, &dummy);
1560   make_cleanup (xfree, buf);
1561   if (strlen (buf) > 0)
1562     internal_error (__FILE__, __LINE__,
1563                     "verify_gdbarch: the following are invalid ...%s",
1564                     buf);
1565   do_cleanups (cleanups);
1566 }
1567 EOF
1568
1569 # dump the structure
1570 printf "\n"
1571 printf "\n"
1572 cat <<EOF
1573 /* Print out the details of the current architecture. */
1574
1575 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1576    just happens to match the global variable \`\`current_gdbarch''.  That
1577    way macros refering to that variable get the local and not the global
1578    version - ulgh.  Once everything is parameterised with gdbarch, this
1579    will go away. */
1580
1581 void
1582 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1583 {
1584   fprintf_unfiltered (file,
1585                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1586                       GDB_MULTI_ARCH);
1587 EOF
1588 function_list | sort -t: -k 3 | while do_read
1589 do
1590     # First the predicate
1591     if class_is_predicate_p
1592     then
1593         if class_is_multiarch_p
1594         then
1595             printf "  fprintf_unfiltered (file,\n"
1596             printf "                      \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1597             printf "                      gdbarch_${function}_p (current_gdbarch));\n"
1598         else
1599             printf "#ifdef ${macro}_P\n"
1600             printf "  fprintf_unfiltered (file,\n"
1601             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1602             printf "                      \"${macro}_P()\",\n"
1603             printf "                      XSTRING (${macro}_P ()));\n"
1604             printf "  fprintf_unfiltered (file,\n"
1605             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1606             printf "                      ${macro}_P ());\n"
1607             printf "#endif\n"
1608         fi
1609     fi
1610     # multiarch functions don't have macros.
1611     if class_is_multiarch_p
1612     then
1613         printf "  fprintf_unfiltered (file,\n"
1614         printf "                      \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1615         printf "                      (long) current_gdbarch->${function});\n"
1616         continue
1617     fi
1618     # Print the macro definition.
1619     printf "#ifdef ${macro}\n"
1620     if class_is_function_p
1621     then
1622         printf "  fprintf_unfiltered (file,\n"
1623         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1624         printf "                      \"${macro}(${actual})\",\n"
1625         printf "                      XSTRING (${macro} (${actual})));\n"
1626     else
1627         printf "  fprintf_unfiltered (file,\n"
1628         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1629         printf "                      XSTRING (${macro}));\n"
1630     fi
1631     if [ "x${print_p}" = "x()" ]
1632     then
1633         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1634     elif [ "x${print_p}" = "x0" ]
1635     then
1636         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1637     elif [ -n "${print_p}" ]
1638     then
1639         printf "  if (${print_p})\n"
1640         printf "    fprintf_unfiltered (file,\n"
1641         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1642         printf "                        ${print});\n"
1643     elif class_is_function_p
1644     then
1645         printf "  fprintf_unfiltered (file,\n"
1646         printf "                      \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1647         printf "                      (long) current_gdbarch->${function}\n"
1648         printf "                      /*${macro} ()*/);\n"
1649     else
1650         printf "  fprintf_unfiltered (file,\n"
1651         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1652         printf "                      ${print});\n"
1653     fi
1654     printf "#endif\n"
1655 done
1656 cat <<EOF
1657   if (current_gdbarch->dump_tdep != NULL)
1658     current_gdbarch->dump_tdep (current_gdbarch, file);
1659 }
1660 EOF
1661
1662
1663 # GET/SET
1664 printf "\n"
1665 cat <<EOF
1666 struct gdbarch_tdep *
1667 gdbarch_tdep (struct gdbarch *gdbarch)
1668 {
1669   if (gdbarch_debug >= 2)
1670     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1671   return gdbarch->tdep;
1672 }
1673 EOF
1674 printf "\n"
1675 function_list | while do_read
1676 do
1677     if class_is_predicate_p
1678     then
1679         printf "\n"
1680         printf "int\n"
1681         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1682         printf "{\n"
1683         printf "  gdb_assert (gdbarch != NULL);\n"
1684         printf "  return ${predicate};\n"
1685         printf "}\n"
1686     fi
1687     if class_is_function_p
1688     then
1689         printf "\n"
1690         printf "${returntype}\n"
1691         if [ "x${formal}" = "xvoid" ]
1692         then
1693           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1694         else
1695           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1696         fi
1697         printf "{\n"
1698         printf "  gdb_assert (gdbarch != NULL);\n"
1699         printf "  gdb_assert (gdbarch->${function} != NULL);\n"
1700         if class_is_predicate_p && test -n "${predefault}"
1701         then
1702             # Allow a call to a function with a predicate.
1703             printf "  /* Do not check predicate: ${predicate}, allow call.  */\n"
1704         fi
1705         printf "  if (gdbarch_debug >= 2)\n"
1706         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1707         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1708         then
1709             if class_is_multiarch_p
1710             then
1711                 params="gdbarch"
1712             else
1713                 params=""
1714             fi
1715         else
1716             if class_is_multiarch_p
1717             then
1718                 params="gdbarch, ${actual}"
1719             else
1720                 params="${actual}"
1721             fi
1722         fi
1723         if [ "x${returntype}" = "xvoid" ]
1724         then
1725           printf "  gdbarch->${function} (${params});\n"
1726         else
1727           printf "  return gdbarch->${function} (${params});\n"
1728         fi
1729         printf "}\n"
1730         printf "\n"
1731         printf "void\n"
1732         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1733         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1734         printf "{\n"
1735         printf "  gdbarch->${function} = ${function};\n"
1736         printf "}\n"
1737     elif class_is_variable_p
1738     then
1739         printf "\n"
1740         printf "${returntype}\n"
1741         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1742         printf "{\n"
1743         printf "  gdb_assert (gdbarch != NULL);\n"
1744         if [ "x${invalid_p}" = "x0" ]
1745         then
1746             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1747         elif [ -n "${invalid_p}" ]
1748         then
1749             printf "  /* Check variable is valid.  */\n"
1750             printf "  gdb_assert (!(${invalid_p}));\n"
1751         elif [ -n "${predefault}" ]
1752         then
1753             printf "  /* Check variable changed from pre-default.  */\n"
1754             printf "  gdb_assert (gdbarch->${function} != ${predefault});\n"
1755         fi
1756         printf "  if (gdbarch_debug >= 2)\n"
1757         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1758         printf "  return gdbarch->${function};\n"
1759         printf "}\n"
1760         printf "\n"
1761         printf "void\n"
1762         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1763         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1764         printf "{\n"
1765         printf "  gdbarch->${function} = ${function};\n"
1766         printf "}\n"
1767     elif class_is_info_p
1768     then
1769         printf "\n"
1770         printf "${returntype}\n"
1771         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1772         printf "{\n"
1773         printf "  gdb_assert (gdbarch != NULL);\n"
1774         printf "  if (gdbarch_debug >= 2)\n"
1775         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1776         printf "  return gdbarch->${function};\n"
1777         printf "}\n"
1778     fi
1779 done
1780
1781 # All the trailing guff
1782 cat <<EOF
1783
1784
1785 /* Keep a registry of per-architecture data-pointers required by GDB
1786    modules. */
1787
1788 struct gdbarch_data
1789 {
1790   unsigned index;
1791   int init_p;
1792   gdbarch_data_pre_init_ftype *pre_init;
1793   gdbarch_data_post_init_ftype *post_init;
1794 };
1795
1796 struct gdbarch_data_registration
1797 {
1798   struct gdbarch_data *data;
1799   struct gdbarch_data_registration *next;
1800 };
1801
1802 struct gdbarch_data_registry
1803 {
1804   unsigned nr;
1805   struct gdbarch_data_registration *registrations;
1806 };
1807
1808 struct gdbarch_data_registry gdbarch_data_registry =
1809 {
1810   0, NULL,
1811 };
1812
1813 static struct gdbarch_data *
1814 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1815                        gdbarch_data_post_init_ftype *post_init)
1816 {
1817   struct gdbarch_data_registration **curr;
1818   /* Append the new registraration.  */
1819   for (curr = &gdbarch_data_registry.registrations;
1820        (*curr) != NULL;
1821        curr = &(*curr)->next);
1822   (*curr) = XMALLOC (struct gdbarch_data_registration);
1823   (*curr)->next = NULL;
1824   (*curr)->data = XMALLOC (struct gdbarch_data);
1825   (*curr)->data->index = gdbarch_data_registry.nr++;
1826   (*curr)->data->pre_init = pre_init;
1827   (*curr)->data->post_init = post_init;
1828   (*curr)->data->init_p = 1;
1829   return (*curr)->data;
1830 }
1831
1832 struct gdbarch_data *
1833 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1834 {
1835   return gdbarch_data_register (pre_init, NULL);
1836 }
1837
1838 struct gdbarch_data *
1839 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1840 {
1841   return gdbarch_data_register (NULL, post_init);
1842 }
1843
1844 /* Create/delete the gdbarch data vector. */
1845
1846 static void
1847 alloc_gdbarch_data (struct gdbarch *gdbarch)
1848 {
1849   gdb_assert (gdbarch->data == NULL);
1850   gdbarch->nr_data = gdbarch_data_registry.nr;
1851   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1852 }
1853
1854 /* Initialize the current value of the specified per-architecture
1855    data-pointer. */
1856
1857 void
1858 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1859                              struct gdbarch_data *data,
1860                              void *pointer)
1861 {
1862   gdb_assert (data->index < gdbarch->nr_data);
1863   gdb_assert (gdbarch->data[data->index] == NULL);
1864   gdb_assert (data->pre_init == NULL);
1865   gdbarch->data[data->index] = pointer;
1866 }
1867
1868 /* Return the current value of the specified per-architecture
1869    data-pointer. */
1870
1871 void *
1872 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1873 {
1874   gdb_assert (data->index < gdbarch->nr_data);
1875   if (gdbarch->data[data->index] == NULL)
1876     {
1877       /* The data-pointer isn't initialized, call init() to get a
1878          value.  */
1879       if (data->pre_init != NULL)
1880         /* Mid architecture creation: pass just the obstack, and not
1881            the entire architecture, as that way it isn't possible for
1882            pre-init code to refer to undefined architecture
1883            fields.  */
1884         gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1885       else if (gdbarch->initialized_p
1886                && data->post_init != NULL)
1887         /* Post architecture creation: pass the entire architecture
1888            (as all fields are valid), but be careful to also detect
1889            recursive references.  */
1890         {
1891           gdb_assert (data->init_p);
1892           data->init_p = 0;
1893           gdbarch->data[data->index] = data->post_init (gdbarch);
1894           data->init_p = 1;
1895         }
1896       else
1897         /* The architecture initialization hasn't completed - punt -
1898          hope that the caller knows what they are doing.  Once
1899          deprecated_set_gdbarch_data has been initialized, this can be
1900          changed to an internal error.  */
1901         return NULL;
1902       gdb_assert (gdbarch->data[data->index] != NULL);
1903     }
1904   return gdbarch->data[data->index];
1905 }
1906
1907
1908
1909 /* Keep a registry of swapped data required by GDB modules. */
1910
1911 struct gdbarch_swap
1912 {
1913   void *swap;
1914   struct gdbarch_swap_registration *source;
1915   struct gdbarch_swap *next;
1916 };
1917
1918 struct gdbarch_swap_registration
1919 {
1920   void *data;
1921   unsigned long sizeof_data;
1922   gdbarch_swap_ftype *init;
1923   struct gdbarch_swap_registration *next;
1924 };
1925
1926 struct gdbarch_swap_registry
1927 {
1928   int nr;
1929   struct gdbarch_swap_registration *registrations;
1930 };
1931
1932 struct gdbarch_swap_registry gdbarch_swap_registry =
1933 {
1934   0, NULL,
1935 };
1936
1937 void
1938 deprecated_register_gdbarch_swap (void *data,
1939                                   unsigned long sizeof_data,
1940                                   gdbarch_swap_ftype *init)
1941 {
1942   struct gdbarch_swap_registration **rego;
1943   for (rego = &gdbarch_swap_registry.registrations;
1944        (*rego) != NULL;
1945        rego = &(*rego)->next);
1946   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1947   (*rego)->next = NULL;
1948   (*rego)->init = init;
1949   (*rego)->data = data;
1950   (*rego)->sizeof_data = sizeof_data;
1951 }
1952
1953 static void
1954 current_gdbarch_swap_init_hack (void)
1955 {
1956   struct gdbarch_swap_registration *rego;
1957   struct gdbarch_swap **curr = &current_gdbarch->swap;
1958   for (rego = gdbarch_swap_registry.registrations;
1959        rego != NULL;
1960        rego = rego->next)
1961     {
1962       if (rego->data != NULL)
1963         {
1964           (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1965                                             struct gdbarch_swap);
1966           (*curr)->source = rego;
1967           (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1968                                                   rego->sizeof_data);
1969           (*curr)->next = NULL;
1970           curr = &(*curr)->next;
1971         }
1972       if (rego->init != NULL)
1973         rego->init ();
1974     }
1975 }
1976
1977 static struct gdbarch *
1978 current_gdbarch_swap_out_hack (void)
1979 {
1980   struct gdbarch *old_gdbarch = current_gdbarch;
1981   struct gdbarch_swap *curr;
1982
1983   gdb_assert (old_gdbarch != NULL);
1984   for (curr = old_gdbarch->swap;
1985        curr != NULL;
1986        curr = curr->next)
1987     {
1988       memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1989       memset (curr->source->data, 0, curr->source->sizeof_data);
1990     }
1991   current_gdbarch = NULL;
1992   return old_gdbarch;
1993 }
1994
1995 static void
1996 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1997 {
1998   struct gdbarch_swap *curr;
1999
2000   gdb_assert (current_gdbarch == NULL);
2001   for (curr = new_gdbarch->swap;
2002        curr != NULL;
2003        curr = curr->next)
2004     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2005   current_gdbarch = new_gdbarch;
2006 }
2007
2008
2009 /* Keep a registry of the architectures known by GDB. */
2010
2011 struct gdbarch_registration
2012 {
2013   enum bfd_architecture bfd_architecture;
2014   gdbarch_init_ftype *init;
2015   gdbarch_dump_tdep_ftype *dump_tdep;
2016   struct gdbarch_list *arches;
2017   struct gdbarch_registration *next;
2018 };
2019
2020 static struct gdbarch_registration *gdbarch_registry = NULL;
2021
2022 static void
2023 append_name (const char ***buf, int *nr, const char *name)
2024 {
2025   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2026   (*buf)[*nr] = name;
2027   *nr += 1;
2028 }
2029
2030 const char **
2031 gdbarch_printable_names (void)
2032 {
2033   /* Accumulate a list of names based on the registed list of
2034      architectures. */
2035   enum bfd_architecture a;
2036   int nr_arches = 0;
2037   const char **arches = NULL;
2038   struct gdbarch_registration *rego;
2039   for (rego = gdbarch_registry;
2040        rego != NULL;
2041        rego = rego->next)
2042     {
2043       const struct bfd_arch_info *ap;
2044       ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2045       if (ap == NULL)
2046         internal_error (__FILE__, __LINE__,
2047                         "gdbarch_architecture_names: multi-arch unknown");
2048       do
2049         {
2050           append_name (&arches, &nr_arches, ap->printable_name);
2051           ap = ap->next;
2052         }
2053       while (ap != NULL);
2054     }
2055   append_name (&arches, &nr_arches, NULL);
2056   return arches;
2057 }
2058
2059
2060 void
2061 gdbarch_register (enum bfd_architecture bfd_architecture,
2062                   gdbarch_init_ftype *init,
2063                   gdbarch_dump_tdep_ftype *dump_tdep)
2064 {
2065   struct gdbarch_registration **curr;
2066   const struct bfd_arch_info *bfd_arch_info;
2067   /* Check that BFD recognizes this architecture */
2068   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2069   if (bfd_arch_info == NULL)
2070     {
2071       internal_error (__FILE__, __LINE__,
2072                       "gdbarch: Attempt to register unknown architecture (%d)",
2073                       bfd_architecture);
2074     }
2075   /* Check that we haven't seen this architecture before */
2076   for (curr = &gdbarch_registry;
2077        (*curr) != NULL;
2078        curr = &(*curr)->next)
2079     {
2080       if (bfd_architecture == (*curr)->bfd_architecture)
2081         internal_error (__FILE__, __LINE__,
2082                         "gdbarch: Duplicate registraration of architecture (%s)",
2083                         bfd_arch_info->printable_name);
2084     }
2085   /* log it */
2086   if (gdbarch_debug)
2087     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2088                         bfd_arch_info->printable_name,
2089                         (long) init);
2090   /* Append it */
2091   (*curr) = XMALLOC (struct gdbarch_registration);
2092   (*curr)->bfd_architecture = bfd_architecture;
2093   (*curr)->init = init;
2094   (*curr)->dump_tdep = dump_tdep;
2095   (*curr)->arches = NULL;
2096   (*curr)->next = NULL;
2097 }
2098
2099 void
2100 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2101                        gdbarch_init_ftype *init)
2102 {
2103   gdbarch_register (bfd_architecture, init, NULL);
2104 }
2105
2106
2107 /* Look for an architecture using gdbarch_info.  Base search on only
2108    BFD_ARCH_INFO and BYTE_ORDER. */
2109
2110 struct gdbarch_list *
2111 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2112                              const struct gdbarch_info *info)
2113 {
2114   for (; arches != NULL; arches = arches->next)
2115     {
2116       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2117         continue;
2118       if (info->byte_order != arches->gdbarch->byte_order)
2119         continue;
2120       if (info->osabi != arches->gdbarch->osabi)
2121         continue;
2122       return arches;
2123     }
2124   return NULL;
2125 }
2126
2127
2128 /* Find an architecture that matches the specified INFO.  Create a new
2129    architecture if needed.  Return that new architecture.  Assumes
2130    that there is no current architecture.  */
2131
2132 static struct gdbarch *
2133 find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
2134 {
2135   struct gdbarch *new_gdbarch;
2136   struct gdbarch_registration *rego;
2137
2138   /* The existing architecture has been swapped out - all this code
2139      works from a clean slate.  */
2140   gdb_assert (current_gdbarch == NULL);
2141
2142   /* Fill in missing parts of the INFO struct using a number of
2143      sources: "set ..."; INFOabfd supplied; and the existing
2144      architecture.  */
2145   gdbarch_info_fill (old_gdbarch, &info);
2146
2147   /* Must have found some sort of architecture. */
2148   gdb_assert (info.bfd_arch_info != NULL);
2149
2150   if (gdbarch_debug)
2151     {
2152       fprintf_unfiltered (gdb_stdlog,
2153                           "find_arch_by_info: info.bfd_arch_info %s\n",
2154                           (info.bfd_arch_info != NULL
2155                            ? info.bfd_arch_info->printable_name
2156                            : "(null)"));
2157       fprintf_unfiltered (gdb_stdlog,
2158                           "find_arch_by_info: info.byte_order %d (%s)\n",
2159                           info.byte_order,
2160                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2161                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2162                            : "default"));
2163       fprintf_unfiltered (gdb_stdlog,
2164                           "find_arch_by_info: info.osabi %d (%s)\n",
2165                           info.osabi, gdbarch_osabi_name (info.osabi));
2166       fprintf_unfiltered (gdb_stdlog,
2167                           "find_arch_by_info: info.abfd 0x%lx\n",
2168                           (long) info.abfd);
2169       fprintf_unfiltered (gdb_stdlog,
2170                           "find_arch_by_info: info.tdep_info 0x%lx\n",
2171                           (long) info.tdep_info);
2172     }
2173
2174   /* Find the tdep code that knows about this architecture.  */
2175   for (rego = gdbarch_registry;
2176        rego != NULL;
2177        rego = rego->next)
2178     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2179       break;
2180   if (rego == NULL)
2181     {
2182       if (gdbarch_debug)
2183         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2184                             "No matching architecture\n");
2185       return 0;
2186     }
2187
2188   /* Ask the tdep code for an architecture that matches "info".  */
2189   new_gdbarch = rego->init (info, rego->arches);
2190
2191   /* Did the tdep code like it?  No.  Reject the change and revert to
2192      the old architecture.  */
2193   if (new_gdbarch == NULL)
2194     {
2195       if (gdbarch_debug)
2196         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2197                             "Target rejected architecture\n");
2198       return NULL;
2199     }
2200
2201   /* Is this a pre-existing architecture (as determined by already
2202      being initialized)?  Move it to the front of the architecture
2203      list (keeping the list sorted Most Recently Used).  */
2204   if (new_gdbarch->initialized_p)
2205     {
2206       struct gdbarch_list **list;
2207       struct gdbarch_list *this;
2208       if (gdbarch_debug)
2209         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2210                             "Previous architecture 0x%08lx (%s) selected\n",
2211                             (long) new_gdbarch,
2212                             new_gdbarch->bfd_arch_info->printable_name);
2213       /* Find the existing arch in the list.  */
2214       for (list = &rego->arches;
2215            (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2216            list = &(*list)->next);
2217       /* It had better be in the list of architectures.  */
2218       gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2219       /* Unlink THIS.  */
2220       this = (*list);
2221       (*list) = this->next;
2222       /* Insert THIS at the front.  */
2223       this->next = rego->arches;
2224       rego->arches = this;
2225       /* Return it.  */
2226       return new_gdbarch;
2227     }
2228
2229   /* It's a new architecture.  */
2230   if (gdbarch_debug)
2231     fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2232                         "New architecture 0x%08lx (%s) selected\n",
2233                         (long) new_gdbarch,
2234                         new_gdbarch->bfd_arch_info->printable_name);
2235
2236   /* Insert the new architecture into the front of the architecture
2237      list (keep the list sorted Most Recently Used).  */
2238   {
2239     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2240     this->next = rego->arches;
2241     this->gdbarch = new_gdbarch;
2242     rego->arches = this;
2243   }
2244
2245   /* Check that the newly installed architecture is valid.  Plug in
2246      any post init values.  */
2247   new_gdbarch->dump_tdep = rego->dump_tdep;
2248   verify_gdbarch (new_gdbarch);
2249   new_gdbarch->initialized_p = 1;
2250
2251   /* Initialize any per-architecture swap areas.  This phase requires
2252      a valid global CURRENT_GDBARCH.  Set it momentarially, and then
2253      swap the entire architecture out.  */
2254   current_gdbarch = new_gdbarch;
2255   current_gdbarch_swap_init_hack ();
2256   current_gdbarch_swap_out_hack ();
2257
2258   if (gdbarch_debug)
2259     gdbarch_dump (new_gdbarch, gdb_stdlog);
2260
2261   return new_gdbarch;
2262 }
2263
2264 struct gdbarch *
2265 gdbarch_find_by_info (struct gdbarch_info info)
2266 {
2267   /* Save the previously selected architecture, setting the global to
2268      NULL.  This stops things like gdbarch->init() trying to use the
2269      previous architecture's configuration.  The previous architecture
2270      may not even be of the same architecture family.  The most recent
2271      architecture of the same family is found at the head of the
2272      rego->arches list.  */
2273   struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2274
2275   /* Find the specified architecture.  */
2276   struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
2277
2278   /* Restore the existing architecture.  */
2279   gdb_assert (current_gdbarch == NULL);
2280   current_gdbarch_swap_in_hack (old_gdbarch);
2281
2282   return new_gdbarch;
2283 }
2284
2285 /* Make the specified architecture current, swapping the existing one
2286    out.  */
2287
2288 void
2289 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2290 {
2291   gdb_assert (new_gdbarch != NULL);
2292   gdb_assert (current_gdbarch != NULL);
2293   gdb_assert (new_gdbarch->initialized_p);
2294   current_gdbarch_swap_out_hack ();
2295   current_gdbarch_swap_in_hack (new_gdbarch);
2296   architecture_changed_event ();
2297 }
2298
2299 extern void _initialize_gdbarch (void);
2300
2301 void
2302 _initialize_gdbarch (void)
2303 {
2304   struct cmd_list_element *c;
2305
2306   add_show_from_set (add_set_cmd ("arch",
2307                                   class_maintenance,
2308                                   var_zinteger,
2309                                   (char *)&gdbarch_debug,
2310                                   "Set architecture debugging.\\n\\
2311 When non-zero, architecture debugging is enabled.", &setdebuglist),
2312                      &showdebuglist);
2313   c = add_set_cmd ("archdebug",
2314                    class_maintenance,
2315                    var_zinteger,
2316                    (char *)&gdbarch_debug,
2317                    "Set architecture debugging.\\n\\
2318 When non-zero, architecture debugging is enabled.", &setlist);
2319
2320   deprecate_cmd (c, "set debug arch");
2321   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2322 }
2323 EOF
2324
2325 # close things off
2326 exec 1>&2
2327 #../move-if-change new-gdbarch.c gdbarch.c
2328 compare_new gdbarch.c