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_LENGTH can be deleted.
 535 v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length
 536 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
 537 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 538 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
 539 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 540 # DEPRECATED_FIX_CALL_DUMMY can be deleted.  For the SPARC, implement
 541 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
 542 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
 543 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
 544 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
 545 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
 546 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
 547
 548 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 549 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
 550 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 551 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 552 # MAP a GDB RAW register number onto a simulator register number.  See
 553 # also include/...-sim.h.
 554 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 555 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
 556 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 557 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 558 # setjmp/longjmp support.
 559 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
 560 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 561 # (callable) initial value.  As a consequence, even when the predicate
 562 # is false, the corresponding function works.  This simplifies the
 563 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 564 # doesn't need to be modified.
 565 F::DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::generic_pc_in_call_dummy:generic_pc_in_call_dummy
 566 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
 567 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 568 #
 569 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 570 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 571 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
 572 #
 573 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 574 # For raw <-> cooked register conversions, replaced by pseudo registers.
 575 F::DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr
 576 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 577 # For raw <-> cooked register conversions, replaced by pseudo registers.
 578 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
 579 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 580 # For raw <-> cooked register conversions, replaced by pseudo registers.
 581 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
 582 #
 583 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
 584 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
 585 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
 586 #
 587 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 588 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
 589 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 590 #
 591 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
 592 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 593 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
 594
 595 # It has been suggested that this, well actually its predecessor,
 596 # should take the type/value of the function to be called and not the
 597 # return type.  This is left as an exercise for the reader.
 598
 599 M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf
 600
 601 # The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
 602 # STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
 603 # into RETURN_VALUE.
 604
 605 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 606 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
 607 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
 608 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 609 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 610 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
 611
 612 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 613 # ABI suitable for the implementation of a robust extract
 614 # struct-convention return-value address method (the sparc saves the
 615 # address in the callers frame).  All the other cases so far examined,
 616 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 617 # erreneous - the code was incorrectly assuming that the return-value
 618 # address, stored in a register, was preserved across the entire
 619 # function call.
 620
 621 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 622 # the ABIs that are still to be analyzed - perhaps this should simply
 623 # be deleted.  The commented out extract_returned_value_address method
 624 # is provided as a starting point for the 32-bit SPARC.  It, or
 625 # something like it, along with changes to both infcmd.c and stack.c
 626 # will be needed for that case to work.  NB: It is passed the callers
 627 # frame since it is only after the callee has returned that this
 628 # function is used.
 629
 630 #M:::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
 631 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
 632
 633 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
 634 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
 635 #
 636 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 637 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 638 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
 639 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
 640 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 641 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 642 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0
 643 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0
 644 #
 645 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
 646 #
 647 v::FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:::0
 648 # DEPRECATED_FRAMELESS_FUNCTION_INVOCATION is not needed.  The new
 649 # frame code works regardless of the type of frame - frameless,
 650 # stackless, or normal.
 651 F::DEPRECATED_FRAMELESS_FUNCTION_INVOCATION:int:deprecated_frameless_function_invocation:struct frame_info *fi:fi
 652 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
 653 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
 654 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 655 # note, per UNWIND_PC's doco, that while the two have similar
 656 # interfaces they have very different underlying implementations.
 657 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
 658 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
 659 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
 660 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
 661 # frame-base.  Enable frame-base before frame-unwind.
 662 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 663 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 664 # frame-base.  Enable frame-base before frame-unwind.
 665 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 666 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 667 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
 668 #
 669 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
 670 # to frame_align and the requirement that methods such as
 671 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
 672 # alignment.
 673 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
 674 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 675 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 676 # stabs_argument_has_addr.
 677 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
 678 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
 679 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
 680 v:2:PARM_BOUNDARY:int:parm_boundary
 681 #
 682 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 683 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 684 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 685 m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0
 686 # On some machines there are bits in addresses which are not really
 687 # part of the address, but are used by the kernel, the hardware, etc.
 688 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 689 # we get a "real" address such as one would find in a symbol table.
 690 # This is used only for addresses of instructions, and even then I'm
 691 # not sure it's used in all contexts.  It exists to deal with there
 692 # being a few stray bits in the PC which would mislead us, not as some
 693 # sort of generic thing to handle alignment or segmentation (it's
 694 # possible it should be in TARGET_READ_PC instead).
 695 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 696 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 697 # ADDR_BITS_REMOVE.
 698 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 699 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 700 # the target needs software single step.  An ISA method to implement it.
 701 #
 702 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 703 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 704 #
 705 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 706 # single step.  If not, then implement single step using breakpoints.
 707 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
 708 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 709 # disassembler.  Perhaphs objdump can handle it?
 710 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
 711 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 712
 713
 714 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 715 # evaluates non-zero, this is the address where the debugger will place
 716 # a step-resume breakpoint to get us past the dynamic linker.
 717 m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
 718 # For SVR4 shared libraries, each call goes through a small piece of
 719 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 720 # to nonzero if we are currently stopped in one of these.
 721 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 722
 723 # Some systems also have trampoline code for returning from shared libs.
 724 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 725
 726 # Sigtramp is a routine that the kernel calls (which then calls the
 727 # signal handler).  On most machines it is a library routine that is
 728 # linked into the executable.
 729 #
 730 # This macro, given a program counter value and the name of the
 731 # function in which that PC resides (which can be null if the name is
 732 # not known), returns nonzero if the PC and name show that we are in
 733 # sigtramp.
 734 #
 735 # On most machines just see if the name is sigtramp (and if we have
 736 # no name, assume we are not in sigtramp).
 737 #
 738 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 739 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 740 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 741 # own local NAME lookup.
 742 #
 743 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 744 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 745 # does not.
 746 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 747 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 748 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 749 # A target might have problems with watchpoints as soon as the stack
 750 # frame of the current function has been destroyed.  This mostly happens
 751 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 752 # is defined to return a non-zero value if either the given addr is one
 753 # instruction after the stack destroying instruction up to the trailing
 754 # return instruction or if we can figure out that the stack frame has
 755 # already been invalidated regardless of the value of addr.  Targets
 756 # which don't suffer from that problem could just let this functionality
 757 # untouched.
 758 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 759 # Given a vector of command-line arguments, return a newly allocated
 760 # string which, when passed to the create_inferior function, will be
 761 # parsed (on Unix systems, by the shell) to yield the same vector.
 762 # This function should call error() if the argument vector is not
 763 # representable for this target or if this target does not support
 764 # command-line arguments.
 765 # ARGC is the number of elements in the vector.
 766 # ARGV is an array of strings, one per argument.
 767 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 768 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
 769 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
 770 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 771 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 772 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 773 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 774 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
 775 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
 776 # Is a register in a group
 777 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 778 # Fetch the pointer to the ith function argument.
 779 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 780
 781 # Return the appropriate register set for a core file section with
 782 # name SECT_NAME and size SECT_SIZE.
 783 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
 784 EOF
 785 }
 786
 787 #
 788 # The .log file
 789 #
 790 exec > new-gdbarch.log
 791 function_list | while do_read
 792 do
 793     cat <<EOF
 794 ${class} ${macro}(${actual})
 795   ${returntype} ${function} ($formal)${attrib}
 796 EOF
 797     for r in ${read}
 798     do
 799         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 800     done
 801     if class_is_predicate_p && fallback_default_p
 802     then
 803         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 804         kill $$
 805         exit 1
 806     fi
 807     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 808     then
 809         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 810         kill $$
 811         exit 1
 812     fi
 813     if class_is_multiarch_p
 814     then
 815         if class_is_predicate_p ; then :
 816         elif test "x${predefault}" = "x"
 817         then
 818             echo "Error: pure multi-arch function must have a predefault" 1>&2
 819             kill $$
 820             exit 1
 821         fi
 822     fi
 823     echo ""
 824 done
 825
 826 exec 1>&2
 827 compare_new gdbarch.log
 828
 829
 830 copyright ()
 831 {
 832 cat <<EOF
 833 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 834
 835 /* Dynamic architecture support for GDB, the GNU debugger.
 836
 837    Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
 838    Software Foundation, Inc.
 839
 840    This file is part of GDB.
 841
 842    This program is free software; you can redistribute it and/or modify
 843    it under the terms of the GNU General Public License as published by
 844    the Free Software Foundation; either version 2 of the License, or
 845    (at your option) any later version.
 846
 847    This program is distributed in the hope that it will be useful,
 848    but WITHOUT ANY WARRANTY; without even the implied warranty of
 849    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 850    GNU General Public License for more details.
 851
 852    You should have received a copy of the GNU General Public License
 853    along with this program; if not, write to the Free Software
 854    Foundation, Inc., 59 Temple Place - Suite 330,
 855    Boston, MA 02111-1307, USA.  */
 856
 857 /* This file was created with the aid of \`\`gdbarch.sh''.
 858
 859    The Bourne shell script \`\`gdbarch.sh'' creates the files
 860    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 861    against the existing \`\`gdbarch.[hc]''.  Any differences found
 862    being reported.
 863
 864    If editing this file, please also run gdbarch.sh and merge any
 865    changes into that script. Conversely, when making sweeping changes
 866    to this file, modifying gdbarch.sh and using its output may prove
 867    easier. */
 868
 869 EOF
 870 }
 871
 872 #
 873 # The .h file
 874 #
 875
 876 exec > new-gdbarch.h
 877 copyright
 878 cat <<EOF
 879 #ifndef GDBARCH_H
 880 #define GDBARCH_H
 881
 882 struct floatformat;
 883 struct ui_file;
 884 struct frame_info;
 885 struct value;
 886 struct objfile;
 887 struct minimal_symbol;
 888 struct regcache;
 889 struct reggroup;
 890 struct regset;
 891 struct disassemble_info;
 892 struct target_ops;
 893
 894 extern struct gdbarch *current_gdbarch;
 895
 896
 897 /* If any of the following are defined, the target wasn't correctly
 898    converted. */
 899
 900 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 901 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 902 #endif
 903 EOF
 904
 905 # function typedef's
 906 printf "\n"
 907 printf "\n"
 908 printf "/* The following are pre-initialized by GDBARCH. */\n"
 909 function_list | while do_read
 910 do
 911     if class_is_info_p
 912     then
 913         printf "\n"
 914         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 915         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 916         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 917         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 918         printf "#endif\n"
 919         printf "#if !defined (${macro})\n"
 920         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 921         printf "#endif\n"
 922     fi
 923 done
 924
 925 # function typedef's
 926 printf "\n"
 927 printf "\n"
 928 printf "/* The following are initialized by the target dependent code. */\n"
 929 function_list | while do_read
 930 do
 931     if [ -n "${comment}" ]
 932     then
 933         echo "${comment}" | sed \
 934             -e '2 s,#,/*,' \
 935             -e '3,$ s,#,  ,' \
 936             -e '$ s,$, */,'
 937     fi
 938     if class_is_multiarch_p
 939     then
 940         if class_is_predicate_p
 941         then
 942             printf "\n"
 943             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 944         fi
 945     else
 946         if class_is_predicate_p
 947         then
 948             printf "\n"
 949             printf "#if defined (${macro})\n"
 950             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 951             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 952             printf "#if !defined (${macro}_P)\n"
 953             printf "#define ${macro}_P() (1)\n"
 954             printf "#endif\n"
 955             printf "#endif\n"
 956             printf "\n"
 957             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 958             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 959             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 960             printf "#endif\n"
 961             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 962             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 963             printf "#endif\n"
 964         fi
 965     fi
 966     if class_is_variable_p
 967     then
 968         printf "\n"
 969         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 970         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 971         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 972         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 973         printf "#endif\n"
 974         printf "#if !defined (${macro})\n"
 975         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 976         printf "#endif\n"
 977     fi
 978     if class_is_function_p
 979     then
 980         printf "\n"
 981         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 982         then
 983             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 984         elif class_is_multiarch_p
 985         then
 986             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 987         else
 988             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 989         fi
 990         if [ "x${formal}" = "xvoid" ]
 991         then
 992           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 993         else
 994           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 995         fi
 996         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 997         if class_is_multiarch_p ; then :
 998         else
 999             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
1000             printf "#error \"Non multi-arch definition of ${macro}\"\n"
1001             printf "#endif\n"
1002             if [ "x${actual}" = "x" ]
1003             then
1004                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
1005             elif [ "x${actual}" = "x-" ]
1006             then
1007                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
1008             else
1009                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
1010             fi
1011             printf "#if !defined (${macro})\n"
1012             if [ "x${actual}" = "x" ]
1013             then
1014                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
1015             elif [ "x${actual}" = "x-" ]
1016             then
1017                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
1018             else
1019                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
1020             fi
1021             printf "#endif\n"
1022         fi
1023     fi
1024 done
1025
1026 # close it off
1027 cat <<EOF
1028
1029 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1030
1031
1032 /* Mechanism for co-ordinating the selection of a specific
1033    architecture.
1034
1035    GDB targets (*-tdep.c) can register an interest in a specific
1036    architecture.  Other GDB components can register a need to maintain
1037    per-architecture data.
1038
1039    The mechanisms below ensures that there is only a loose connection
1040    between the set-architecture command and the various GDB
1041    components.  Each component can independently register their need
1042    to maintain architecture specific data with gdbarch.
1043
1044    Pragmatics:
1045
1046    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1047    didn't scale.
1048
1049    The more traditional mega-struct containing architecture specific
1050    data for all the various GDB components was also considered.  Since
1051    GDB is built from a variable number of (fairly independent)
1052    components it was determined that the global aproach was not
1053    applicable. */
1054
1055
1056 /* Register a new architectural family with GDB.
1057
1058    Register support for the specified ARCHITECTURE with GDB.  When
1059    gdbarch determines that the specified architecture has been
1060    selected, the corresponding INIT function is called.
1061
1062    --
1063
1064    The INIT function takes two parameters: INFO which contains the
1065    information available to gdbarch about the (possibly new)
1066    architecture; ARCHES which is a list of the previously created
1067    \`\`struct gdbarch'' for this architecture.
1068
1069    The INFO parameter is, as far as possible, be pre-initialized with
1070    information obtained from INFO.ABFD or the previously selected
1071    architecture.
1072
1073    The ARCHES parameter is a linked list (sorted most recently used)
1074    of all the previously created architures for this architecture
1075    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1076    values from the previously selected architecture for this
1077    architecture family.  The global \`\`current_gdbarch'' shall not be
1078    used.
1079
1080    The INIT function shall return any of: NULL - indicating that it
1081    doesn't recognize the selected architecture; an existing \`\`struct
1082    gdbarch'' from the ARCHES list - indicating that the new
1083    architecture is just a synonym for an earlier architecture (see
1084    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1085    - that describes the selected architecture (see gdbarch_alloc()).
1086
1087    The DUMP_TDEP function shall print out all target specific values.
1088    Care should be taken to ensure that the function works in both the
1089    multi-arch and non- multi-arch cases. */
1090
1091 struct gdbarch_list
1092 {
1093   struct gdbarch *gdbarch;
1094   struct gdbarch_list *next;
1095 };
1096
1097 struct gdbarch_info
1098 {
1099   /* Use default: NULL (ZERO). */
1100   const struct bfd_arch_info *bfd_arch_info;
1101
1102   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1103   int byte_order;
1104
1105   /* Use default: NULL (ZERO). */
1106   bfd *abfd;
1107
1108   /* Use default: NULL (ZERO). */
1109   struct gdbarch_tdep_info *tdep_info;
1110
1111   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1112   enum gdb_osabi osabi;
1113 };
1114
1115 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1116 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1117
1118 /* DEPRECATED - use gdbarch_register() */
1119 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1120
1121 extern void gdbarch_register (enum bfd_architecture architecture,
1122                               gdbarch_init_ftype *,
1123                               gdbarch_dump_tdep_ftype *);
1124
1125
1126 /* Return a freshly allocated, NULL terminated, array of the valid
1127    architecture names.  Since architectures are registered during the
1128    _initialize phase this function only returns useful information
1129    once initialization has been completed. */
1130
1131 extern const char **gdbarch_printable_names (void);
1132
1133
1134 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1135    matches the information provided by INFO. */
1136
1137 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1138
1139
1140 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1141    basic initialization using values obtained from the INFO andTDEP
1142    parameters.  set_gdbarch_*() functions are called to complete the
1143    initialization of the object. */
1144
1145 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1146
1147
1148 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1149    It is assumed that the caller freeds the \`\`struct
1150    gdbarch_tdep''. */
1151
1152 extern void gdbarch_free (struct gdbarch *);
1153
1154
1155 /* Helper function.  Allocate memory from the \`\`struct gdbarch''
1156    obstack.  The memory is freed when the corresponding architecture
1157    is also freed.  */
1158
1159 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1160 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1161 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1162
1163
1164 /* Helper function. Force an update of the current architecture.
1165
1166    The actual architecture selected is determined by INFO, \`\`(gdb) set
1167    architecture'' et.al., the existing architecture and BFD's default
1168    architecture.  INFO should be initialized to zero and then selected
1169    fields should be updated.
1170
1171    Returns non-zero if the update succeeds */
1172
1173 extern int gdbarch_update_p (struct gdbarch_info info);
1174
1175
1176 /* Helper function.  Find an architecture matching info.
1177
1178    INFO should be initialized using gdbarch_info_init, relevant fields
1179    set, and then finished using gdbarch_info_fill.
1180
1181    Returns the corresponding architecture, or NULL if no matching
1182    architecture was found.  "current_gdbarch" is not updated.  */
1183
1184 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1185
1186
1187 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1188
1189    FIXME: kettenis/20031124: Of the functions that follow, only
1190    gdbarch_from_bfd is supposed to survive.  The others will
1191    dissappear since in the future GDB will (hopefully) be truly
1192    multi-arch.  However, for now we're still stuck with the concept of
1193    a single active architecture.  */
1194
1195 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1196
1197
1198 /* Register per-architecture data-pointer.
1199
1200    Reserve space for a per-architecture data-pointer.  An identifier
1201    for the reserved data-pointer is returned.  That identifer should
1202    be saved in a local static variable.
1203
1204    The per-architecture data-pointer is either initialized explicitly
1205    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1206    gdbarch_data()).
1207
1208    Memory for the per-architecture data shall be allocated using
1209    gdbarch_obstack_zalloc.  That memory will be deleted when the
1210    corresponding architecture object is deleted.
1211
1212    When a previously created architecture is re-selected, the
1213    per-architecture data-pointer for that previous architecture is
1214    restored.  INIT() is not re-called.
1215
1216    Multiple registrarants for any architecture are allowed (and
1217    strongly encouraged).  */
1218
1219 struct gdbarch_data;
1220
1221 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1222 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1223 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1224                               struct gdbarch_data *data,
1225                               void *pointer);
1226
1227 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1228
1229
1230
1231 /* Register per-architecture memory region.
1232
1233    Provide a memory-region swap mechanism.  Per-architecture memory
1234    region are created.  These memory regions are swapped whenever the
1235    architecture is changed.  For a new architecture, the memory region
1236    is initialized with zero (0) and the INIT function is called.
1237
1238    Memory regions are swapped / initialized in the order that they are
1239    registered.  NULL DATA and/or INIT values can be specified.
1240
1241    New code should use register_gdbarch_data(). */
1242
1243 typedef void (gdbarch_swap_ftype) (void);
1244 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1245 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1246
1247
1248
1249 /* Set the dynamic target-system-dependent parameters (architecture,
1250    byte-order, ...) using information found in the BFD */
1251
1252 extern void set_gdbarch_from_file (bfd *);
1253
1254
1255 /* Initialize the current architecture to the "first" one we find on
1256    our list.  */
1257
1258 extern void initialize_current_architecture (void);
1259
1260 /* gdbarch trace variable */
1261 extern int gdbarch_debug;
1262
1263 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1264
1265 #endif
1266 EOF
1267 exec 1>&2
1268 #../move-if-change new-gdbarch.h gdbarch.h
1269 compare_new gdbarch.h
1270
1271
1272 #
1273 # C file
1274 #
1275
1276 exec > new-gdbarch.c
1277 copyright
1278 cat <<EOF
1279
1280 #include "defs.h"
1281 #include "arch-utils.h"
1282
1283 #include "gdbcmd.h"
1284 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1285 #include "symcat.h"
1286
1287 #include "floatformat.h"
1288
1289 #include "gdb_assert.h"
1290 #include "gdb_string.h"
1291 #include "gdb-events.h"
1292 #include "reggroups.h"
1293 #include "osabi.h"
1294 #include "gdb_obstack.h"
1295
1296 /* Static function declarations */
1297
1298 static void alloc_gdbarch_data (struct gdbarch *);
1299
1300 /* Non-zero if we want to trace architecture code.  */
1301
1302 #ifndef GDBARCH_DEBUG
1303 #define GDBARCH_DEBUG 0
1304 #endif
1305 int gdbarch_debug = GDBARCH_DEBUG;
1306
1307 EOF
1308
1309 # gdbarch open the gdbarch object
1310 printf "\n"
1311 printf "/* Maintain the struct gdbarch object */\n"
1312 printf "\n"
1313 printf "struct gdbarch\n"
1314 printf "{\n"
1315 printf "  /* Has this architecture been fully initialized?  */\n"
1316 printf "  int initialized_p;\n"
1317 printf "\n"
1318 printf "  /* An obstack bound to the lifetime of the architecture.  */\n"
1319 printf "  struct obstack *obstack;\n"
1320 printf "\n"
1321 printf "  /* basic architectural information */\n"
1322 function_list | while do_read
1323 do
1324     if class_is_info_p
1325     then
1326         printf "  ${returntype} ${function};\n"
1327     fi
1328 done
1329 printf "\n"
1330 printf "  /* target specific vector. */\n"
1331 printf "  struct gdbarch_tdep *tdep;\n"
1332 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1333 printf "\n"
1334 printf "  /* per-architecture data-pointers */\n"
1335 printf "  unsigned nr_data;\n"
1336 printf "  void **data;\n"
1337 printf "\n"
1338 printf "  /* per-architecture swap-regions */\n"
1339 printf "  struct gdbarch_swap *swap;\n"
1340 printf "\n"
1341 cat <<EOF
1342   /* Multi-arch values.
1343
1344      When extending this structure you must:
1345
1346      Add the field below.
1347
1348      Declare set/get functions and define the corresponding
1349      macro in gdbarch.h.
1350
1351      gdbarch_alloc(): If zero/NULL is not a suitable default,
1352      initialize the new field.
1353
1354      verify_gdbarch(): Confirm that the target updated the field
1355      correctly.
1356
1357      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1358      field is dumped out
1359
1360      \`\`startup_gdbarch()'': Append an initial value to the static
1361      variable (base values on the host's c-type system).
1362
1363      get_gdbarch(): Implement the set/get functions (probably using
1364      the macro's as shortcuts).
1365
1366      */
1367
1368 EOF
1369 function_list | while do_read
1370 do
1371     if class_is_variable_p
1372     then
1373         printf "  ${returntype} ${function};\n"
1374     elif class_is_function_p
1375     then
1376         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1377     fi
1378 done
1379 printf "};\n"
1380
1381 # A pre-initialized vector
1382 printf "\n"
1383 printf "\n"
1384 cat <<EOF
1385 /* The default architecture uses host values (for want of a better
1386    choice). */
1387 EOF
1388 printf "\n"
1389 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1390 printf "\n"
1391 printf "struct gdbarch startup_gdbarch =\n"
1392 printf "{\n"
1393 printf "  1, /* Always initialized.  */\n"
1394 printf "  NULL, /* The obstack.  */\n"
1395 printf "  /* basic architecture information */\n"
1396 function_list | while do_read
1397 do
1398     if class_is_info_p
1399     then
1400         printf "  ${staticdefault},  /* ${function} */\n"
1401     fi
1402 done
1403 cat <<EOF
1404   /* target specific vector and its dump routine */
1405   NULL, NULL,
1406   /*per-architecture data-pointers and swap regions */
1407   0, NULL, NULL,
1408   /* Multi-arch values */
1409 EOF
1410 function_list | while do_read
1411 do
1412     if class_is_function_p || class_is_variable_p
1413     then
1414         printf "  ${staticdefault},  /* ${function} */\n"
1415     fi
1416 done
1417 cat <<EOF
1418   /* startup_gdbarch() */
1419 };
1420
1421 struct gdbarch *current_gdbarch = &startup_gdbarch;
1422 EOF
1423
1424 # Create a new gdbarch struct
1425 cat <<EOF
1426
1427 /* Create a new \`\`struct gdbarch'' based on information provided by
1428    \`\`struct gdbarch_info''. */
1429 EOF
1430 printf "\n"
1431 cat <<EOF
1432 struct gdbarch *
1433 gdbarch_alloc (const struct gdbarch_info *info,
1434                struct gdbarch_tdep *tdep)
1435 {
1436   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1437      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1438      the current local architecture and not the previous global
1439      architecture.  This ensures that the new architectures initial
1440      values are not influenced by the previous architecture.  Once
1441      everything is parameterised with gdbarch, this will go away.  */
1442   struct gdbarch *current_gdbarch;
1443
1444   /* Create an obstack for allocating all the per-architecture memory,
1445      then use that to allocate the architecture vector.  */
1446   struct obstack *obstack = XMALLOC (struct obstack);
1447   obstack_init (obstack);
1448   current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1449   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1450   current_gdbarch->obstack = obstack;
1451
1452   alloc_gdbarch_data (current_gdbarch);
1453
1454   current_gdbarch->tdep = tdep;
1455 EOF
1456 printf "\n"
1457 function_list | while do_read
1458 do
1459     if class_is_info_p
1460     then
1461         printf "  current_gdbarch->${function} = info->${function};\n"
1462     fi
1463 done
1464 printf "\n"
1465 printf "  /* Force the explicit initialization of these. */\n"
1466 function_list | while do_read
1467 do
1468     if class_is_function_p || class_is_variable_p
1469     then
1470         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1471         then
1472           printf "  current_gdbarch->${function} = ${predefault};\n"
1473         fi
1474     fi
1475 done
1476 cat <<EOF
1477   /* gdbarch_alloc() */
1478
1479   return current_gdbarch;
1480 }
1481 EOF
1482
1483 # Free a gdbarch struct.
1484 printf "\n"
1485 printf "\n"
1486 cat <<EOF
1487 /* Allocate extra space using the per-architecture obstack.  */
1488
1489 void *
1490 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1491 {
1492   void *data = obstack_alloc (arch->obstack, size);
1493   memset (data, 0, size);
1494   return data;
1495 }
1496
1497
1498 /* Free a gdbarch struct.  This should never happen in normal
1499    operation --- once you've created a gdbarch, you keep it around.
1500    However, if an architecture's init function encounters an error
1501    building the structure, it may need to clean up a partially
1502    constructed gdbarch.  */
1503
1504 void
1505 gdbarch_free (struct gdbarch *arch)
1506 {
1507   struct obstack *obstack;
1508   gdb_assert (arch != NULL);
1509   gdb_assert (!arch->initialized_p);
1510   obstack = arch->obstack;
1511   obstack_free (obstack, 0); /* Includes the ARCH.  */
1512   xfree (obstack);
1513 }
1514 EOF
1515
1516 # verify a new architecture
1517 cat <<EOF
1518
1519
1520 /* Ensure that all values in a GDBARCH are reasonable.  */
1521
1522 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1523    just happens to match the global variable \`\`current_gdbarch''.  That
1524    way macros refering to that variable get the local and not the global
1525    version - ulgh.  Once everything is parameterised with gdbarch, this
1526    will go away. */
1527
1528 static void
1529 verify_gdbarch (struct gdbarch *current_gdbarch)
1530 {
1531   struct ui_file *log;
1532   struct cleanup *cleanups;
1533   long dummy;
1534   char *buf;
1535   log = mem_fileopen ();
1536   cleanups = make_cleanup_ui_file_delete (log);
1537   /* fundamental */
1538   if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1539     fprintf_unfiltered (log, "\n\tbyte-order");
1540   if (current_gdbarch->bfd_arch_info == NULL)
1541     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1542   /* Check those that need to be defined for the given multi-arch level. */
1543 EOF
1544 function_list | while do_read
1545 do
1546     if class_is_function_p || class_is_variable_p
1547     then
1548         if [ "x${invalid_p}" = "x0" ]
1549         then
1550             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1551         elif class_is_predicate_p
1552         then
1553             printf "  /* Skip verify of ${function}, has predicate */\n"
1554         # FIXME: See do_read for potential simplification
1555         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1556         then
1557             printf "  if (${invalid_p})\n"
1558             printf "    current_gdbarch->${function} = ${postdefault};\n"
1559         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1560         then
1561             printf "  if (current_gdbarch->${function} == ${predefault})\n"
1562             printf "    current_gdbarch->${function} = ${postdefault};\n"
1563         elif [ -n "${postdefault}" ]
1564         then
1565             printf "  if (current_gdbarch->${function} == 0)\n"
1566             printf "    current_gdbarch->${function} = ${postdefault};\n"
1567         elif [ -n "${invalid_p}" ]
1568         then
1569             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1570             printf "      && (${invalid_p}))\n"
1571             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1572         elif [ -n "${predefault}" ]
1573         then
1574             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1575             printf "      && (current_gdbarch->${function} == ${predefault}))\n"
1576             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1577         fi
1578     fi
1579 done
1580 cat <<EOF
1581   buf = ui_file_xstrdup (log, &dummy);
1582   make_cleanup (xfree, buf);
1583   if (strlen (buf) > 0)
1584     internal_error (__FILE__, __LINE__,
1585                     "verify_gdbarch: the following are invalid ...%s",
1586                     buf);
1587   do_cleanups (cleanups);
1588 }
1589 EOF
1590
1591 # dump the structure
1592 printf "\n"
1593 printf "\n"
1594 cat <<EOF
1595 /* Print out the details of the current architecture. */
1596
1597 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1598    just happens to match the global variable \`\`current_gdbarch''.  That
1599    way macros refering to that variable get the local and not the global
1600    version - ulgh.  Once everything is parameterised with gdbarch, this
1601    will go away. */
1602
1603 void
1604 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1605 {
1606   fprintf_unfiltered (file,
1607                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1608                       GDB_MULTI_ARCH);
1609 EOF
1610 function_list | sort -t: -k 3 | while do_read
1611 do
1612     # First the predicate
1613     if class_is_predicate_p
1614     then
1615         if class_is_multiarch_p
1616         then
1617             printf "  fprintf_unfiltered (file,\n"
1618             printf "                      \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1619             printf "                      gdbarch_${function}_p (current_gdbarch));\n"
1620         else
1621             printf "#ifdef ${macro}_P\n"
1622             printf "  fprintf_unfiltered (file,\n"
1623             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1624             printf "                      \"${macro}_P()\",\n"
1625             printf "                      XSTRING (${macro}_P ()));\n"
1626             printf "  fprintf_unfiltered (file,\n"
1627             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1628             printf "                      ${macro}_P ());\n"
1629             printf "#endif\n"
1630         fi
1631     fi
1632     # multiarch functions don't have macros.
1633     if class_is_multiarch_p
1634     then
1635         printf "  fprintf_unfiltered (file,\n"
1636         printf "                      \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1637         printf "                      (long) current_gdbarch->${function});\n"
1638         continue
1639     fi
1640     # Print the macro definition.
1641     printf "#ifdef ${macro}\n"
1642     if class_is_function_p
1643     then
1644         printf "  fprintf_unfiltered (file,\n"
1645         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1646         printf "                      \"${macro}(${actual})\",\n"
1647         printf "                      XSTRING (${macro} (${actual})));\n"
1648     else
1649         printf "  fprintf_unfiltered (file,\n"
1650         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1651         printf "                      XSTRING (${macro}));\n"
1652     fi
1653     if [ "x${print_p}" = "x()" ]
1654     then
1655         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1656     elif [ "x${print_p}" = "x0" ]
1657     then
1658         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1659     elif [ -n "${print_p}" ]
1660     then
1661         printf "  if (${print_p})\n"
1662         printf "    fprintf_unfiltered (file,\n"
1663         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1664         printf "                        ${print});\n"
1665     elif class_is_function_p
1666     then
1667         printf "  fprintf_unfiltered (file,\n"
1668         printf "                      \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1669         printf "                      (long) current_gdbarch->${function}\n"
1670         printf "                      /*${macro} ()*/);\n"
1671     else
1672         printf "  fprintf_unfiltered (file,\n"
1673         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1674         printf "                      ${print});\n"
1675     fi
1676     printf "#endif\n"
1677 done
1678 cat <<EOF
1679   if (current_gdbarch->dump_tdep != NULL)
1680     current_gdbarch->dump_tdep (current_gdbarch, file);
1681 }
1682 EOF
1683
1684
1685 # GET/SET
1686 printf "\n"
1687 cat <<EOF
1688 struct gdbarch_tdep *
1689 gdbarch_tdep (struct gdbarch *gdbarch)
1690 {
1691   if (gdbarch_debug >= 2)
1692     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1693   return gdbarch->tdep;
1694 }
1695 EOF
1696 printf "\n"
1697 function_list | while do_read
1698 do
1699     if class_is_predicate_p
1700     then
1701         printf "\n"
1702         printf "int\n"
1703         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1704         printf "{\n"
1705         printf "  gdb_assert (gdbarch != NULL);\n"
1706         printf "  return ${predicate};\n"
1707         printf "}\n"
1708     fi
1709     if class_is_function_p
1710     then
1711         printf "\n"
1712         printf "${returntype}\n"
1713         if [ "x${formal}" = "xvoid" ]
1714         then
1715           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1716         else
1717           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1718         fi
1719         printf "{\n"
1720         printf "  gdb_assert (gdbarch != NULL);\n"
1721         printf "  gdb_assert (gdbarch->${function} != NULL);\n"
1722         if class_is_predicate_p && test -n "${predefault}"
1723         then
1724             # Allow a call to a function with a predicate.
1725             printf "  /* Do not check predicate: ${predicate}, allow call.  */\n"
1726         fi
1727         printf "  if (gdbarch_debug >= 2)\n"
1728         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1729         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1730         then
1731             if class_is_multiarch_p
1732             then
1733                 params="gdbarch"
1734             else
1735                 params=""
1736             fi
1737         else
1738             if class_is_multiarch_p
1739             then
1740                 params="gdbarch, ${actual}"
1741             else
1742                 params="${actual}"
1743             fi
1744         fi
1745         if [ "x${returntype}" = "xvoid" ]
1746         then
1747           printf "  gdbarch->${function} (${params});\n"
1748         else
1749           printf "  return gdbarch->${function} (${params});\n"
1750         fi
1751         printf "}\n"
1752         printf "\n"
1753         printf "void\n"
1754         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1755         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1756         printf "{\n"
1757         printf "  gdbarch->${function} = ${function};\n"
1758         printf "}\n"
1759     elif class_is_variable_p
1760     then
1761         printf "\n"
1762         printf "${returntype}\n"
1763         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1764         printf "{\n"
1765         printf "  gdb_assert (gdbarch != NULL);\n"
1766         if [ "x${invalid_p}" = "x0" ]
1767         then
1768             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1769         elif [ -n "${invalid_p}" ]
1770         then
1771             printf "  /* Check variable is valid.  */\n"
1772             printf "  gdb_assert (!(${invalid_p}));\n"
1773         elif [ -n "${predefault}" ]
1774         then
1775             printf "  /* Check variable changed from pre-default.  */\n"
1776             printf "  gdb_assert (gdbarch->${function} != ${predefault});\n"
1777         fi
1778         printf "  if (gdbarch_debug >= 2)\n"
1779         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1780         printf "  return gdbarch->${function};\n"
1781         printf "}\n"
1782         printf "\n"
1783         printf "void\n"
1784         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1785         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1786         printf "{\n"
1787         printf "  gdbarch->${function} = ${function};\n"
1788         printf "}\n"
1789     elif class_is_info_p
1790     then
1791         printf "\n"
1792         printf "${returntype}\n"
1793         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1794         printf "{\n"
1795         printf "  gdb_assert (gdbarch != NULL);\n"
1796         printf "  if (gdbarch_debug >= 2)\n"
1797         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1798         printf "  return gdbarch->${function};\n"
1799         printf "}\n"
1800     fi
1801 done
1802
1803 # All the trailing guff
1804 cat <<EOF
1805
1806
1807 /* Keep a registry of per-architecture data-pointers required by GDB
1808    modules. */
1809
1810 struct gdbarch_data
1811 {
1812   unsigned index;
1813   int init_p;
1814   gdbarch_data_init_ftype *init;
1815 };
1816
1817 struct gdbarch_data_registration
1818 {
1819   struct gdbarch_data *data;
1820   struct gdbarch_data_registration *next;
1821 };
1822
1823 struct gdbarch_data_registry
1824 {
1825   unsigned nr;
1826   struct gdbarch_data_registration *registrations;
1827 };
1828
1829 struct gdbarch_data_registry gdbarch_data_registry =
1830 {
1831   0, NULL,
1832 };
1833
1834 struct gdbarch_data *
1835 register_gdbarch_data (gdbarch_data_init_ftype *init)
1836 {
1837   struct gdbarch_data_registration **curr;
1838   /* Append the new registraration.  */
1839   for (curr = &gdbarch_data_registry.registrations;
1840        (*curr) != NULL;
1841        curr = &(*curr)->next);
1842   (*curr) = XMALLOC (struct gdbarch_data_registration);
1843   (*curr)->next = NULL;
1844   (*curr)->data = XMALLOC (struct gdbarch_data);
1845   (*curr)->data->index = gdbarch_data_registry.nr++;
1846   (*curr)->data->init = init;
1847   (*curr)->data->init_p = 1;
1848   return (*curr)->data;
1849 }
1850
1851
1852 /* Create/delete the gdbarch data vector. */
1853
1854 static void
1855 alloc_gdbarch_data (struct gdbarch *gdbarch)
1856 {
1857   gdb_assert (gdbarch->data == NULL);
1858   gdbarch->nr_data = gdbarch_data_registry.nr;
1859   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1860 }
1861
1862 /* Initialize the current value of the specified per-architecture
1863    data-pointer. */
1864
1865 void
1866 set_gdbarch_data (struct gdbarch *gdbarch,
1867                   struct gdbarch_data *data,
1868                   void *pointer)
1869 {
1870   gdb_assert (data->index < gdbarch->nr_data);
1871   gdb_assert (gdbarch->data[data->index] == NULL);
1872   gdbarch->data[data->index] = pointer;
1873 }
1874
1875 /* Return the current value of the specified per-architecture
1876    data-pointer. */
1877
1878 void *
1879 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1880 {
1881   gdb_assert (data->index < gdbarch->nr_data);
1882   /* The data-pointer isn't initialized, call init() to get a value but
1883      only if the architecture initializaiton has completed.  Otherwise
1884      punt - hope that the caller knows what they are doing.  */
1885   if (gdbarch->data[data->index] == NULL
1886       && gdbarch->initialized_p)
1887     {
1888       /* Be careful to detect an initialization cycle.  */
1889       gdb_assert (data->init_p);
1890       data->init_p = 0;
1891       gdb_assert (data->init != NULL);
1892       gdbarch->data[data->index] = data->init (gdbarch);
1893       data->init_p = 1;
1894       gdb_assert (gdbarch->data[data->index] != NULL);
1895     }
1896   return gdbarch->data[data->index];
1897 }
1898
1899
1900
1901 /* Keep a registry of swapped data required by GDB modules. */
1902
1903 struct gdbarch_swap
1904 {
1905   void *swap;
1906   struct gdbarch_swap_registration *source;
1907   struct gdbarch_swap *next;
1908 };
1909
1910 struct gdbarch_swap_registration
1911 {
1912   void *data;
1913   unsigned long sizeof_data;
1914   gdbarch_swap_ftype *init;
1915   struct gdbarch_swap_registration *next;
1916 };
1917
1918 struct gdbarch_swap_registry
1919 {
1920   int nr;
1921   struct gdbarch_swap_registration *registrations;
1922 };
1923
1924 struct gdbarch_swap_registry gdbarch_swap_registry =
1925 {
1926   0, NULL,
1927 };
1928
1929 void
1930 deprecated_register_gdbarch_swap (void *data,
1931                                   unsigned long sizeof_data,
1932                                   gdbarch_swap_ftype *init)
1933 {
1934   struct gdbarch_swap_registration **rego;
1935   for (rego = &gdbarch_swap_registry.registrations;
1936        (*rego) != NULL;
1937        rego = &(*rego)->next);
1938   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1939   (*rego)->next = NULL;
1940   (*rego)->init = init;
1941   (*rego)->data = data;
1942   (*rego)->sizeof_data = sizeof_data;
1943 }
1944
1945 static void
1946 current_gdbarch_swap_init_hack (void)
1947 {
1948   struct gdbarch_swap_registration *rego;
1949   struct gdbarch_swap **curr = &current_gdbarch->swap;
1950   for (rego = gdbarch_swap_registry.registrations;
1951        rego != NULL;
1952        rego = rego->next)
1953     {
1954       if (rego->data != NULL)
1955         {
1956           (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1957                                             struct gdbarch_swap);
1958           (*curr)->source = rego;
1959           (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1960                                                   rego->sizeof_data);
1961           (*curr)->next = NULL;
1962           curr = &(*curr)->next;
1963         }
1964       if (rego->init != NULL)
1965         rego->init ();
1966     }
1967 }
1968
1969 static struct gdbarch *
1970 current_gdbarch_swap_out_hack (void)
1971 {
1972   struct gdbarch *old_gdbarch = current_gdbarch;
1973   struct gdbarch_swap *curr;
1974
1975   gdb_assert (old_gdbarch != NULL);
1976   for (curr = old_gdbarch->swap;
1977        curr != NULL;
1978        curr = curr->next)
1979     {
1980       memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1981       memset (curr->source->data, 0, curr->source->sizeof_data);
1982     }
1983   current_gdbarch = NULL;
1984   return old_gdbarch;
1985 }
1986
1987 static void
1988 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1989 {
1990   struct gdbarch_swap *curr;
1991
1992   gdb_assert (current_gdbarch == NULL);
1993   for (curr = new_gdbarch->swap;
1994        curr != NULL;
1995        curr = curr->next)
1996     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1997   current_gdbarch = new_gdbarch;
1998 }
1999
2000
2001 /* Keep a registry of the architectures known by GDB. */
2002
2003 struct gdbarch_registration
2004 {
2005   enum bfd_architecture bfd_architecture;
2006   gdbarch_init_ftype *init;
2007   gdbarch_dump_tdep_ftype *dump_tdep;
2008   struct gdbarch_list *arches;
2009   struct gdbarch_registration *next;
2010 };
2011
2012 static struct gdbarch_registration *gdbarch_registry = NULL;
2013
2014 static void
2015 append_name (const char ***buf, int *nr, const char *name)
2016 {
2017   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2018   (*buf)[*nr] = name;
2019   *nr += 1;
2020 }
2021
2022 const char **
2023 gdbarch_printable_names (void)
2024 {
2025   /* Accumulate a list of names based on the registed list of
2026      architectures. */
2027   enum bfd_architecture a;
2028   int nr_arches = 0;
2029   const char **arches = NULL;
2030   struct gdbarch_registration *rego;
2031   for (rego = gdbarch_registry;
2032        rego != NULL;
2033        rego = rego->next)
2034     {
2035       const struct bfd_arch_info *ap;
2036       ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2037       if (ap == NULL)
2038         internal_error (__FILE__, __LINE__,
2039                         "gdbarch_architecture_names: multi-arch unknown");
2040       do
2041         {
2042           append_name (&arches, &nr_arches, ap->printable_name);
2043           ap = ap->next;
2044         }
2045       while (ap != NULL);
2046     }
2047   append_name (&arches, &nr_arches, NULL);
2048   return arches;
2049 }
2050
2051
2052 void
2053 gdbarch_register (enum bfd_architecture bfd_architecture,
2054                   gdbarch_init_ftype *init,
2055                   gdbarch_dump_tdep_ftype *dump_tdep)
2056 {
2057   struct gdbarch_registration **curr;
2058   const struct bfd_arch_info *bfd_arch_info;
2059   /* Check that BFD recognizes this architecture */
2060   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2061   if (bfd_arch_info == NULL)
2062     {
2063       internal_error (__FILE__, __LINE__,
2064                       "gdbarch: Attempt to register unknown architecture (%d)",
2065                       bfd_architecture);
2066     }
2067   /* Check that we haven't seen this architecture before */
2068   for (curr = &gdbarch_registry;
2069        (*curr) != NULL;
2070        curr = &(*curr)->next)
2071     {
2072       if (bfd_architecture == (*curr)->bfd_architecture)
2073         internal_error (__FILE__, __LINE__,
2074                         "gdbarch: Duplicate registraration of architecture (%s)",
2075                         bfd_arch_info->printable_name);
2076     }
2077   /* log it */
2078   if (gdbarch_debug)
2079     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2080                         bfd_arch_info->printable_name,
2081                         (long) init);
2082   /* Append it */
2083   (*curr) = XMALLOC (struct gdbarch_registration);
2084   (*curr)->bfd_architecture = bfd_architecture;
2085   (*curr)->init = init;
2086   (*curr)->dump_tdep = dump_tdep;
2087   (*curr)->arches = NULL;
2088   (*curr)->next = NULL;
2089 }
2090
2091 void
2092 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2093                        gdbarch_init_ftype *init)
2094 {
2095   gdbarch_register (bfd_architecture, init, NULL);
2096 }
2097
2098
2099 /* Look for an architecture using gdbarch_info.  Base search on only
2100    BFD_ARCH_INFO and BYTE_ORDER. */
2101
2102 struct gdbarch_list *
2103 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2104                              const struct gdbarch_info *info)
2105 {
2106   for (; arches != NULL; arches = arches->next)
2107     {
2108       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2109         continue;
2110       if (info->byte_order != arches->gdbarch->byte_order)
2111         continue;
2112       if (info->osabi != arches->gdbarch->osabi)
2113         continue;
2114       return arches;
2115     }
2116   return NULL;
2117 }
2118
2119
2120 /* Find an architecture that matches the specified INFO.  Create a new
2121    architecture if needed.  Return that new architecture.  Assumes
2122    that there is no current architecture.  */
2123
2124 static struct gdbarch *
2125 find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
2126 {
2127   struct gdbarch *new_gdbarch;
2128   struct gdbarch_registration *rego;
2129
2130   /* The existing architecture has been swapped out - all this code
2131      works from a clean slate.  */
2132   gdb_assert (current_gdbarch == NULL);
2133
2134   /* Fill in missing parts of the INFO struct using a number of
2135      sources: "set ..."; INFOabfd supplied; and the existing
2136      architecture.  */
2137   gdbarch_info_fill (old_gdbarch, &info);
2138
2139   /* Must have found some sort of architecture. */
2140   gdb_assert (info.bfd_arch_info != NULL);
2141
2142   if (gdbarch_debug)
2143     {
2144       fprintf_unfiltered (gdb_stdlog,
2145                           "find_arch_by_info: info.bfd_arch_info %s\n",
2146                           (info.bfd_arch_info != NULL
2147                            ? info.bfd_arch_info->printable_name
2148                            : "(null)"));
2149       fprintf_unfiltered (gdb_stdlog,
2150                           "find_arch_by_info: info.byte_order %d (%s)\n",
2151                           info.byte_order,
2152                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2153                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2154                            : "default"));
2155       fprintf_unfiltered (gdb_stdlog,
2156                           "find_arch_by_info: info.osabi %d (%s)\n",
2157                           info.osabi, gdbarch_osabi_name (info.osabi));
2158       fprintf_unfiltered (gdb_stdlog,
2159                           "find_arch_by_info: info.abfd 0x%lx\n",
2160                           (long) info.abfd);
2161       fprintf_unfiltered (gdb_stdlog,
2162                           "find_arch_by_info: info.tdep_info 0x%lx\n",
2163                           (long) info.tdep_info);
2164     }
2165
2166   /* Find the tdep code that knows about this architecture.  */
2167   for (rego = gdbarch_registry;
2168        rego != NULL;
2169        rego = rego->next)
2170     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2171       break;
2172   if (rego == NULL)
2173     {
2174       if (gdbarch_debug)
2175         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2176                             "No matching architecture\n");
2177       return 0;
2178     }
2179
2180   /* Ask the tdep code for an architecture that matches "info".  */
2181   new_gdbarch = rego->init (info, rego->arches);
2182
2183   /* Did the tdep code like it?  No.  Reject the change and revert to
2184      the old architecture.  */
2185   if (new_gdbarch == NULL)
2186     {
2187       if (gdbarch_debug)
2188         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2189                             "Target rejected architecture\n");
2190       return NULL;
2191     }
2192
2193   /* Is this a pre-existing architecture (as determined by already
2194      being initialized)?  Move it to the front of the architecture
2195      list (keeping the list sorted Most Recently Used).  */
2196   if (new_gdbarch->initialized_p)
2197     {
2198       struct gdbarch_list **list;
2199       struct gdbarch_list *this;
2200       if (gdbarch_debug)
2201         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2202                             "Previous architecture 0x%08lx (%s) selected\n",
2203                             (long) new_gdbarch,
2204                             new_gdbarch->bfd_arch_info->printable_name);
2205       /* Find the existing arch in the list.  */
2206       for (list = &rego->arches;
2207            (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2208            list = &(*list)->next);
2209       /* It had better be in the list of architectures.  */
2210       gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2211       /* Unlink THIS.  */
2212       this = (*list);
2213       (*list) = this->next;
2214       /* Insert THIS at the front.  */
2215       this->next = rego->arches;
2216       rego->arches = this;
2217       /* Return it.  */
2218       return new_gdbarch;
2219     }
2220
2221   /* It's a new architecture.  */
2222   if (gdbarch_debug)
2223     fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2224                         "New architecture 0x%08lx (%s) selected\n",
2225                         (long) new_gdbarch,
2226                         new_gdbarch->bfd_arch_info->printable_name);
2227
2228   /* Insert the new architecture into the front of the architecture
2229      list (keep the list sorted Most Recently Used).  */
2230   {
2231     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2232     this->next = rego->arches;
2233     this->gdbarch = new_gdbarch;
2234     rego->arches = this;
2235   }
2236
2237   /* Check that the newly installed architecture is valid.  Plug in
2238      any post init values.  */
2239   new_gdbarch->dump_tdep = rego->dump_tdep;
2240   verify_gdbarch (new_gdbarch);
2241   new_gdbarch->initialized_p = 1;
2242
2243   /* Initialize any per-architecture swap areas.  This phase requires
2244      a valid global CURRENT_GDBARCH.  Set it momentarially, and then
2245      swap the entire architecture out.  */
2246   current_gdbarch = new_gdbarch;
2247   current_gdbarch_swap_init_hack ();
2248   current_gdbarch_swap_out_hack ();
2249
2250   if (gdbarch_debug)
2251     gdbarch_dump (new_gdbarch, gdb_stdlog);
2252
2253   return new_gdbarch;
2254 }
2255
2256 struct gdbarch *
2257 gdbarch_find_by_info (struct gdbarch_info info)
2258 {
2259   /* Save the previously selected architecture, setting the global to
2260      NULL.  This stops things like gdbarch->init() trying to use the
2261      previous architecture's configuration.  The previous architecture
2262      may not even be of the same architecture family.  The most recent
2263      architecture of the same family is found at the head of the
2264      rego->arches list.  */
2265   struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2266
2267   /* Find the specified architecture.  */
2268   struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
2269
2270   /* Restore the existing architecture.  */
2271   gdb_assert (current_gdbarch == NULL);
2272   current_gdbarch_swap_in_hack (old_gdbarch);
2273
2274   return new_gdbarch;
2275 }
2276
2277 /* Make the specified architecture current, swapping the existing one
2278    out.  */
2279
2280 void
2281 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2282 {
2283   gdb_assert (new_gdbarch != NULL);
2284   gdb_assert (current_gdbarch != NULL);
2285   gdb_assert (new_gdbarch->initialized_p);
2286   current_gdbarch_swap_out_hack ();
2287   current_gdbarch_swap_in_hack (new_gdbarch);
2288   architecture_changed_event ();
2289 }
2290
2291 extern void _initialize_gdbarch (void);
2292
2293 void
2294 _initialize_gdbarch (void)
2295 {
2296   struct cmd_list_element *c;
2297
2298   add_show_from_set (add_set_cmd ("arch",
2299                                   class_maintenance,
2300                                   var_zinteger,
2301                                   (char *)&gdbarch_debug,
2302                                   "Set architecture debugging.\\n\\
2303 When non-zero, architecture debugging is enabled.", &setdebuglist),
2304                      &showdebuglist);
2305   c = add_set_cmd ("archdebug",
2306                    class_maintenance,
2307                    var_zinteger,
2308                    (char *)&gdbarch_debug,
2309                    "Set architecture debugging.\\n\\
2310 When non-zero, architecture debugging is enabled.", &setlist);
2311
2312   deprecate_cmd (c, "set debug arch");
2313   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2314 }
2315 EOF
2316
2317 # close things off
2318 exec 1>&2
2319 #../move-if-change new-gdbarch.c gdbarch.c
2320 compare_new gdbarch.c