gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   5 #
   6 # This file is part of GDB.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21
  22 # Make certain that the script is running in an internationalized
  23 # environment.
  24 LANG=c ; export LANG
  25 LC_ALL=c ; export LC_ALL
  26
  27
  28 compare_new ()
  29 {
  30     file=$1
  31     if test ! -r ${file}
  32     then
  33         echo "${file} missing? cp new-${file} ${file}" 1>&2
  34     elif diff -u ${file} new-${file}
  35     then
  36         echo "${file} unchanged" 1>&2
  37     else
  38         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  39     fi
  40 }
  41
  42
  43 # Format of the input table
  44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  45
  46 do_read ()
  47 {
  48     comment=""
  49     class=""
  50     while read line
  51     do
  52         if test "${line}" = ""
  53         then
  54             continue
  55         elif test "${line}" = "#" -a "${comment}" = ""
  56         then
  57             continue
  58         elif expr "${line}" : "#" > /dev/null
  59         then
  60             comment="${comment}
  61 ${line}"
  62         else
  63
  64             # The semantics of IFS varies between different SH's.  Some
  65             # treat ``::' as three fields while some treat it as just too.
  66             # Work around this by eliminating ``::'' ....
  67             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  68
  69             OFS="${IFS}" ; IFS="[:]"
  70             eval read ${read} <<EOF
  71 ${line}
  72 EOF
  73             IFS="${OFS}"
  74
  75             # .... and then going back through each field and strip out those
  76             # that ended up with just that space character.
  77             for r in ${read}
  78             do
  79                 if eval test \"\${${r}}\" = \"\ \"
  80                 then
  81                     eval ${r}=""
  82                 fi
  83             done
  84
  85             case "${level}" in
  86                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  87                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  88                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  89                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  90             esac
  91
  92             case "${class}" in
  93                 m ) staticdefault="${predefault}" ;;
  94                 M ) staticdefault="0" ;;
  95                 * ) test "${staticdefault}" || staticdefault=0 ;;
  96             esac
  97
  98             # come up with a format, use a few guesses for variables
  99             case ":${class}:${fmt}:${print}:" in
 100                 :[vV]::: )
 101                     if [ "${returntype}" = int ]
 102                     then
 103                         fmt="%d"
 104                         print="${macro}"
 105                     elif [ "${returntype}" = long ]
 106                     then
 107                         fmt="%ld"
 108                         print="${macro}"
 109                     fi
 110                     ;;
 111             esac
 112             test "${fmt}" || fmt="%ld"
 113             test "${print}" || print="(long) ${macro}"
 114
 115             case "${class}" in
 116             F | V | M )
 117                 case "${invalid_p}" in
 118                 "" )
 119                     if test -n "${predefault}"
 120                     then
 121                         #invalid_p="gdbarch->${function} == ${predefault}"
 122                         predicate="gdbarch->${function} != ${predefault}"
 123                     elif class_is_variable_p
 124                     then
 125                         predicate="gdbarch->${function} != 0"
 126                     elif class_is_function_p
 127                     then
 128                         predicate="gdbarch->${function} != NULL"
 129                     fi
 130                     ;;
 131                 * )
 132                     echo "Predicate function ${function} with invalid_p." 1>&2
 133                     kill $$
 134                     exit 1
 135                     ;;
 136                 esac
 137             esac
 138
 139             # PREDEFAULT is a valid fallback definition of MEMBER when
 140             # multi-arch is not enabled.  This ensures that the
 141             # default value, when multi-arch is the same as the
 142             # default value when not multi-arch.  POSTDEFAULT is
 143             # always a valid definition of MEMBER as this again
 144             # ensures consistency.
 145
 146             if [ -n "${postdefault}" ]
 147             then
 148                 fallbackdefault="${postdefault}"
 149             elif [ -n "${predefault}" ]
 150             then
 151                 fallbackdefault="${predefault}"
 152             else
 153                 fallbackdefault="0"
 154             fi
 155
 156             #NOT YET: See gdbarch.log for basic verification of
 157             # database
 158
 159             break
 160         fi
 161     done
 162     if [ -n "${class}" ]
 163     then
 164         true
 165     else
 166         false
 167     fi
 168 }
 169
 170
 171 fallback_default_p ()
 172 {
 173     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 174         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 175 }
 176
 177 class_is_variable_p ()
 178 {
 179     case "${class}" in
 180         *v* | *V* ) true ;;
 181         * ) false ;;
 182     esac
 183 }
 184
 185 class_is_function_p ()
 186 {
 187     case "${class}" in
 188         *f* | *F* | *m* | *M* ) true ;;
 189         * ) false ;;
 190     esac
 191 }
 192
 193 class_is_multiarch_p ()
 194 {
 195     case "${class}" in
 196         *m* | *M* ) true ;;
 197         * ) false ;;
 198     esac
 199 }
 200
 201 class_is_predicate_p ()
 202 {
 203     case "${class}" in
 204         *F* | *V* | *M* ) true ;;
 205         * ) false ;;
 206     esac
 207 }
 208
 209 class_is_info_p ()
 210 {
 211     case "${class}" in
 212         *i* ) true ;;
 213         * ) false ;;
 214     esac
 215 }
 216
 217
 218 # dump out/verify the doco
 219 for field in ${read}
 220 do
 221   case ${field} in
 222
 223     class ) : ;;
 224
 225         # # -> line disable
 226         # f -> function
 227         #   hiding a function
 228         # F -> function + predicate
 229         #   hiding a function + predicate to test function validity
 230         # v -> variable
 231         #   hiding a variable
 232         # V -> variable + predicate
 233         #   hiding a variable + predicate to test variables validity
 234         # i -> set from info
 235         #   hiding something from the ``struct info'' object
 236         # m -> multi-arch function
 237         #   hiding a multi-arch function (parameterised with the architecture)
 238         # M -> multi-arch function + predicate
 239         #   hiding a multi-arch function + predicate to test function validity
 240
 241     level ) : ;;
 242
 243         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 244         # LEVEL is a predicate on checking that a given method is
 245         # initialized (using INVALID_P).
 246
 247     macro ) : ;;
 248
 249         # The name of the MACRO that this method is to be accessed by.
 250
 251     returntype ) : ;;
 252
 253         # For functions, the return type; for variables, the data type
 254
 255     function ) : ;;
 256
 257         # For functions, the member function name; for variables, the
 258         # variable name.  Member function names are always prefixed with
 259         # ``gdbarch_'' for name-space purity.
 260
 261     formal ) : ;;
 262
 263         # The formal argument list.  It is assumed that the formal
 264         # argument list includes the actual name of each list element.
 265         # A function with no arguments shall have ``void'' as the
 266         # formal argument list.
 267
 268     actual ) : ;;
 269
 270         # The list of actual arguments.  The arguments specified shall
 271         # match the FORMAL list given above.  Functions with out
 272         # arguments leave this blank.
 273
 274     attrib ) : ;;
 275
 276         # Any GCC attributes that should be attached to the function
 277         # declaration.  At present this field is unused.
 278
 279     staticdefault ) : ;;
 280
 281         # To help with the GDB startup a static gdbarch object is
 282         # created.  STATICDEFAULT is the value to insert into that
 283         # static gdbarch object.  Since this a static object only
 284         # simple expressions can be used.
 285
 286         # If STATICDEFAULT is empty, zero is used.
 287
 288     predefault ) : ;;
 289
 290         # An initial value to assign to MEMBER of the freshly
 291         # malloc()ed gdbarch object.  After initialization, the
 292         # freshly malloc()ed object is passed to the target
 293         # architecture code for further updates.
 294
 295         # If PREDEFAULT is empty, zero is used.
 296
 297         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 298         # INVALID_P are specified, PREDEFAULT will be used as the
 299         # default for the non- multi-arch target.
 300
 301         # A zero PREDEFAULT function will force the fallback to call
 302         # internal_error().
 303
 304         # Variable declarations can refer to ``gdbarch'' which will
 305         # contain the current architecture.  Care should be taken.
 306
 307     postdefault ) : ;;
 308
 309         # A value to assign to MEMBER of the new gdbarch object should
 310         # the target architecture code fail to change the PREDEFAULT
 311         # value.
 312
 313         # If POSTDEFAULT is empty, no post update is performed.
 314
 315         # If both INVALID_P and POSTDEFAULT are non-empty then
 316         # INVALID_P will be used to determine if MEMBER should be
 317         # changed to POSTDEFAULT.
 318
 319         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 320         # specified, POSTDEFAULT will be used as the default for the
 321         # non- multi-arch target (regardless of the value of
 322         # PREDEFAULT).
 323
 324         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 325
 326         # Variable declarations can refer to ``current_gdbarch'' which
 327         # will contain the current architecture.  Care should be
 328         # taken.
 329
 330     invalid_p ) : ;;
 331
 332         # A predicate equation that validates MEMBER.  Non-zero is
 333         # returned if the code creating the new architecture failed to
 334         # initialize MEMBER or the initialized the member is invalid.
 335         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 336         # that value.  If POSTDEFAULT is empty then internal_error()
 337         # is called.
 338
 339         # If INVALID_P is empty, a check that MEMBER is no longer
 340         # equal to PREDEFAULT is used.
 341
 342         # The expression ``0'' disables the INVALID_P check making
 343         # PREDEFAULT a legitimate value.
 344
 345         # See also PREDEFAULT and POSTDEFAULT.
 346
 347     fmt ) : ;;
 348
 349         # printf style format string that can be used to print out the
 350         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 351         # ignored and the function address is printed.
 352
 353         # If FMT is empty, ``%ld'' is used.
 354
 355     print ) : ;;
 356
 357         # An optional equation that casts MEMBER to a value suitable
 358         # for formatting by FMT.
 359
 360         # If PRINT is empty, ``(long)'' is used.
 361
 362     print_p ) : ;;
 363
 364         # An optional indicator for any predicte to wrap around the
 365         # print member code.
 366
 367         #   () -> Call a custom function to do the dump.
 368         #   exp -> Wrap print up in ``if (${print_p}) ...
 369         #   ``'' -> No predicate
 370
 371         # If PRINT_P is empty, ``1'' is always used.
 372
 373     description ) : ;;
 374
 375         # Currently unused.
 376
 377     *)
 378         echo "Bad field ${field}"
 379         exit 1;;
 380   esac
 381 done
 382
 383
 384 function_list ()
 385 {
 386   # See below (DOCO) for description of each field
 387   cat <<EOF
 388 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 389 #
 390 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
 391 #
 392 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
 393 # Number of bits in a char or unsigned char for the target machine.
 394 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 395 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 396 #
 397 # Number of bits in a short or unsigned short for the target machine.
 398 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 399 # Number of bits in an int or unsigned int for the target machine.
 400 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 401 # Number of bits in a long or unsigned long for the target machine.
 402 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 403 # Number of bits in a long long or unsigned long long for the target
 404 # machine.
 405 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 406 # Number of bits in a float for the target machine.
 407 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 408 # Number of bits in a double for the target machine.
 409 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 410 # Number of bits in a long double for the target machine.
 411 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
 412 # For most targets, a pointer on the target and its representation as an
 413 # address in GDB have the same size and "look the same".  For such a
 414 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 415 # / addr_bit will be set from it.
 416 #
 417 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 418 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 419 #
 420 # ptr_bit is the size of a pointer on the target
 421 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 422 # addr_bit is the size of a target address as represented in gdb
 423 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 424 # Number of bits in a BFD_VMA for the target object file format.
 425 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 426 #
 427 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
 428 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
 429 #
 430 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
 431 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 432 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
 433 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
 434 # Function for getting target's idea of a frame pointer.  FIXME: GDB's
 435 # whole scheme for dealing with "frames" and "frame pointers" needs a
 436 # serious shakedown.
 437 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
 438 #
 439 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
 440 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
 441 #
 442 v:2:NUM_REGS:int:num_regs::::0:-1
 443 # This macro gives the number of pseudo-registers that live in the
 444 # register namespace but do not get fetched or stored on the target.
 445 # These pseudo-registers may be aliases for other registers,
 446 # combinations of other registers, or they may be computed by GDB.
 447 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 448
 449 # GDB's standard (or well known) register numbers.  These can map onto
 450 # a real register or a pseudo (computed) register or not be defined at
 451 # all (-1).
 452 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
 453 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
 454 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
 455 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
 456 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 457 # Replace DEPRECATED_NPC_REGNUM with an implementation of WRITE_PC
 458 # that updates PC, NPC and even NNPC.
 459 v:2:DEPRECATED_NPC_REGNUM:int:deprecated_npc_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 F::DEPRECATED_CALL_DUMMY_ADDRESS:CORE_ADDR:deprecated_call_dummy_address:void
 531 # DEPRECATED_CALL_DUMMY_START_OFFSET can be deleted.
 532 v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset
 533 # DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET can be deleted.
 534 v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset
 535 # DEPRECATED_CALL_DUMMY_LENGTH can be deleted.
 536 v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length
 537 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
 538 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 539 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
 540 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 541 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_CALL_DUMMY_STACK_ADJUST.
 542 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust
 543 # DEPRECATED_FIX_CALL_DUMMY can be deleted.  For the SPARC, implement
 544 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
 545 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
 546 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
 547 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
 548 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
 549 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
 550 # Implement PUSH_DUMMY_CALL, then delete
 551 # DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED.
 552 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
 553
 554 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 555 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
 556 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 557 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 558 # MAP a GDB RAW register number onto a simulator register number.  See
 559 # also include/...-sim.h.
 560 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 561 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
 562 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 563 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 564 # setjmp/longjmp support.
 565 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
 566 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 567 # (callable) initial value.  As a consequence, even when the predicate
 568 # is false, the corresponding function works.  This simplifies the
 569 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 570 # doesn't need to be modified.
 571 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
 572 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
 573 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 574 #
 575 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 576 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 577 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
 578 #
 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_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr:::deprecated_register_convertible_not::0
 582 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 583 # For raw <-> cooked register conversions, replaced by pseudo registers.
 584 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
 585 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 586 # For raw <-> cooked register conversions, replaced by pseudo registers.
 587 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
 588 #
 589 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
 590 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
 591 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
 592 #
 593 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 594 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
 595 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 596 #
 597 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
 598 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 599 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
 600
 601 # It has been suggested that this, well actually its predecessor,
 602 # should take the type/value of the function to be called and not the
 603 # return type.  This is left as an exercise for the reader.
 604
 605 M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf
 606
 607 # The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
 608 # STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
 609 # into RETURN_VALUE.  For the moment do not try to fold in
 610 # EXTRACT_STRUCT_VALUE_ADDRESS as, dependant on the ABI, the debug
 611 # info, and the level of effort, it may well be possible to find the
 612 # address of a structure being return on the stack.  Someone else can
 613 # make that change.
 614
 615 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 616 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
 617 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
 618 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 619 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 620 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
 621
 622 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache
 623 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf
 624 #
 625 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
 626 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
 627 #
 628 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 629 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
 630 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 631 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
 632 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
 633 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 634 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 635 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
 636 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
 637 #
 638 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
 639 #
 640 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 641 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 642 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
 643 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
 644 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 645 # note, per UNWIND_PC's doco, that while the two have similar
 646 # interfaces they have very different underlying implementations.
 647 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
 648 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
 649 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
 650 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
 651 # frame-base.  Enable frame-base before frame-unwind.
 652 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 653 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 654 # frame-base.  Enable frame-base before frame-unwind.
 655 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 656 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 657 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
 658 #
 659 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
 660 # to frame_align and the requirement that methods such as
 661 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
 662 # alignment.
 663 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
 664 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 665 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 666 # stabs_argument_has_addr.
 667 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
 668 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
 669 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
 670 v:2:PARM_BOUNDARY:int:parm_boundary
 671 #
 672 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 673 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 674 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 675 m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0
 676 # On some machines there are bits in addresses which are not really
 677 # part of the address, but are used by the kernel, the hardware, etc.
 678 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 679 # we get a "real" address such as one would find in a symbol table.
 680 # This is used only for addresses of instructions, and even then I'm
 681 # not sure it's used in all contexts.  It exists to deal with there
 682 # being a few stray bits in the PC which would mislead us, not as some
 683 # sort of generic thing to handle alignment or segmentation (it's
 684 # possible it should be in TARGET_READ_PC instead).
 685 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 686 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 687 # ADDR_BITS_REMOVE.
 688 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 689 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 690 # the target needs software single step.  An ISA method to implement it.
 691 #
 692 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 693 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 694 #
 695 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 696 # single step.  If not, then implement single step using breakpoints.
 697 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
 698 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 699 # disassembler.  Perhaphs objdump can handle it?
 700 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
 701 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 702
 703
 704 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 705 # evaluates non-zero, this is the address where the debugger will place
 706 # a step-resume breakpoint to get us past the dynamic linker.
 707 m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
 708 # For SVR4 shared libraries, each call goes through a small piece of
 709 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 710 # to nonzero if we are currently stopped in one of these.
 711 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 712
 713 # Some systems also have trampoline code for returning from shared libs.
 714 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 715
 716 # Sigtramp is a routine that the kernel calls (which then calls the
 717 # signal handler).  On most machines it is a library routine that is
 718 # linked into the executable.
 719 #
 720 # This macro, given a program counter value and the name of the
 721 # function in which that PC resides (which can be null if the name is
 722 # not known), returns nonzero if the PC and name show that we are in
 723 # sigtramp.
 724 #
 725 # On most machines just see if the name is sigtramp (and if we have
 726 # no name, assume we are not in sigtramp).
 727 #
 728 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 729 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 730 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 731 # own local NAME lookup.
 732 #
 733 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 734 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 735 # does not.
 736 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 737 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 738 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 739 # A target might have problems with watchpoints as soon as the stack
 740 # frame of the current function has been destroyed.  This mostly happens
 741 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 742 # is defined to return a non-zero value if either the given addr is one
 743 # instruction after the stack destroying instruction up to the trailing
 744 # return instruction or if we can figure out that the stack frame has
 745 # already been invalidated regardless of the value of addr.  Targets
 746 # which don't suffer from that problem could just let this functionality
 747 # untouched.
 748 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 749 # Given a vector of command-line arguments, return a newly allocated
 750 # string which, when passed to the create_inferior function, will be
 751 # parsed (on Unix systems, by the shell) to yield the same vector.
 752 # This function should call error() if the argument vector is not
 753 # representable for this target or if this target does not support
 754 # command-line arguments.
 755 # ARGC is the number of elements in the vector.
 756 # ARGV is an array of strings, one per argument.
 757 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 758 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
 759 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
 760 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 761 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 762 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 763 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 764 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
 765 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
 766 # Is a register in a group
 767 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 768 # Fetch the pointer to the ith function argument.
 769 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 770
 771 # Return the appropriate register set for a core file section with
 772 # name SECT_NAME and size SECT_SIZE.
 773 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
 774 EOF
 775 }
 776
 777 #
 778 # The .log file
 779 #
 780 exec > new-gdbarch.log
 781 function_list | while do_read
 782 do
 783     cat <<EOF
 784 ${class} ${macro}(${actual})
 785   ${returntype} ${function} ($formal)${attrib}
 786 EOF
 787     for r in ${read}
 788     do
 789         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 790     done
 791     if class_is_predicate_p && fallback_default_p
 792     then
 793         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 794         kill $$
 795         exit 1
 796     fi
 797     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 798     then
 799         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 800         kill $$
 801         exit 1
 802     fi
 803     if class_is_multiarch_p
 804     then
 805         if class_is_predicate_p ; then :
 806         elif test "x${predefault}" = "x"
 807         then
 808             echo "Error: pure multi-arch function must have a predefault" 1>&2
 809             kill $$
 810             exit 1
 811         fi
 812     fi
 813     echo ""
 814 done
 815
 816 exec 1>&2
 817 compare_new gdbarch.log
 818
 819
 820 copyright ()
 821 {
 822 cat <<EOF
 823 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 824
 825 /* Dynamic architecture support for GDB, the GNU debugger.
 826    Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 827
 828    This file is part of GDB.
 829
 830    This program is free software; you can redistribute it and/or modify
 831    it under the terms of the GNU General Public License as published by
 832    the Free Software Foundation; either version 2 of the License, or
 833    (at your option) any later version.
 834
 835    This program is distributed in the hope that it will be useful,
 836    but WITHOUT ANY WARRANTY; without even the implied warranty of
 837    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 838    GNU General Public License for more details.
 839
 840    You should have received a copy of the GNU General Public License
 841    along with this program; if not, write to the Free Software
 842    Foundation, Inc., 59 Temple Place - Suite 330,
 843    Boston, MA 02111-1307, USA.  */
 844
 845 /* This file was created with the aid of \`\`gdbarch.sh''.
 846
 847    The Bourne shell script \`\`gdbarch.sh'' creates the files
 848    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 849    against the existing \`\`gdbarch.[hc]''.  Any differences found
 850    being reported.
 851
 852    If editing this file, please also run gdbarch.sh and merge any
 853    changes into that script. Conversely, when making sweeping changes
 854    to this file, modifying gdbarch.sh and using its output may prove
 855    easier. */
 856
 857 EOF
 858 }
 859
 860 #
 861 # The .h file
 862 #
 863
 864 exec > new-gdbarch.h
 865 copyright
 866 cat <<EOF
 867 #ifndef GDBARCH_H
 868 #define GDBARCH_H
 869
 870 struct floatformat;
 871 struct ui_file;
 872 struct frame_info;
 873 struct value;
 874 struct objfile;
 875 struct minimal_symbol;
 876 struct regcache;
 877 struct reggroup;
 878 struct regset;
 879 struct disassemble_info;
 880 struct target_ops;
 881
 882 extern struct gdbarch *current_gdbarch;
 883
 884
 885 /* If any of the following are defined, the target wasn't correctly
 886    converted. */
 887
 888 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 889 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 890 #endif
 891 EOF
 892
 893 # function typedef's
 894 printf "\n"
 895 printf "\n"
 896 printf "/* The following are pre-initialized by GDBARCH. */\n"
 897 function_list | while do_read
 898 do
 899     if class_is_info_p
 900     then
 901         printf "\n"
 902         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 903         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 904         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 905         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 906         printf "#endif\n"
 907         printf "#if !defined (${macro})\n"
 908         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 909         printf "#endif\n"
 910     fi
 911 done
 912
 913 # function typedef's
 914 printf "\n"
 915 printf "\n"
 916 printf "/* The following are initialized by the target dependent code. */\n"
 917 function_list | while do_read
 918 do
 919     if [ -n "${comment}" ]
 920     then
 921         echo "${comment}" | sed \
 922             -e '2 s,#,/*,' \
 923             -e '3,$ s,#,  ,' \
 924             -e '$ s,$, */,'
 925     fi
 926     if class_is_multiarch_p
 927     then
 928         if class_is_predicate_p
 929         then
 930             printf "\n"
 931             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 932         fi
 933     else
 934         if class_is_predicate_p
 935         then
 936             printf "\n"
 937             printf "#if defined (${macro})\n"
 938             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 939             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 940             printf "#if !defined (${macro}_P)\n"
 941             printf "#define ${macro}_P() (1)\n"
 942             printf "#endif\n"
 943             printf "#endif\n"
 944             printf "\n"
 945             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 946             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 947             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 948             printf "#endif\n"
 949             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 950             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 951             printf "#endif\n"
 952         fi
 953     fi
 954     if class_is_variable_p
 955     then
 956         printf "\n"
 957         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 958         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 959         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 960         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 961         printf "#endif\n"
 962         printf "#if !defined (${macro})\n"
 963         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 964         printf "#endif\n"
 965     fi
 966     if class_is_function_p
 967     then
 968         printf "\n"
 969         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 970         then
 971             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 972         elif class_is_multiarch_p
 973         then
 974             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 975         else
 976             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 977         fi
 978         if [ "x${formal}" = "xvoid" ]
 979         then
 980           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 981         else
 982           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 983         fi
 984         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 985         if class_is_multiarch_p ; then :
 986         else
 987             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 988             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 989             printf "#endif\n"
 990             if [ "x${actual}" = "x" ]
 991             then
 992                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
 993             elif [ "x${actual}" = "x-" ]
 994             then
 995                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
 996             else
 997                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
 998             fi
 999             printf "#if !defined (${macro})\n"
1000             if [ "x${actual}" = "x" ]
1001             then
1002                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
1003             elif [ "x${actual}" = "x-" ]
1004             then
1005                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
1006             else
1007                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
1008             fi
1009             printf "#endif\n"
1010         fi
1011     fi
1012 done
1013
1014 # close it off
1015 cat <<EOF
1016
1017 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1018
1019
1020 /* Mechanism for co-ordinating the selection of a specific
1021    architecture.
1022
1023    GDB targets (*-tdep.c) can register an interest in a specific
1024    architecture.  Other GDB components can register a need to maintain
1025    per-architecture data.
1026
1027    The mechanisms below ensures that there is only a loose connection
1028    between the set-architecture command and the various GDB
1029    components.  Each component can independently register their need
1030    to maintain architecture specific data with gdbarch.
1031
1032    Pragmatics:
1033
1034    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1035    didn't scale.
1036
1037    The more traditional mega-struct containing architecture specific
1038    data for all the various GDB components was also considered.  Since
1039    GDB is built from a variable number of (fairly independent)
1040    components it was determined that the global aproach was not
1041    applicable. */
1042
1043
1044 /* Register a new architectural family with GDB.
1045
1046    Register support for the specified ARCHITECTURE with GDB.  When
1047    gdbarch determines that the specified architecture has been
1048    selected, the corresponding INIT function is called.
1049
1050    --
1051
1052    The INIT function takes two parameters: INFO which contains the
1053    information available to gdbarch about the (possibly new)
1054    architecture; ARCHES which is a list of the previously created
1055    \`\`struct gdbarch'' for this architecture.
1056
1057    The INFO parameter is, as far as possible, be pre-initialized with
1058    information obtained from INFO.ABFD or the previously selected
1059    architecture.
1060
1061    The ARCHES parameter is a linked list (sorted most recently used)
1062    of all the previously created architures for this architecture
1063    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1064    values from the previously selected architecture for this
1065    architecture family.  The global \`\`current_gdbarch'' shall not be
1066    used.
1067
1068    The INIT function shall return any of: NULL - indicating that it
1069    doesn't recognize the selected architecture; an existing \`\`struct
1070    gdbarch'' from the ARCHES list - indicating that the new
1071    architecture is just a synonym for an earlier architecture (see
1072    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1073    - that describes the selected architecture (see gdbarch_alloc()).
1074
1075    The DUMP_TDEP function shall print out all target specific values.
1076    Care should be taken to ensure that the function works in both the
1077    multi-arch and non- multi-arch cases. */
1078
1079 struct gdbarch_list
1080 {
1081   struct gdbarch *gdbarch;
1082   struct gdbarch_list *next;
1083 };
1084
1085 struct gdbarch_info
1086 {
1087   /* Use default: NULL (ZERO). */
1088   const struct bfd_arch_info *bfd_arch_info;
1089
1090   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1091   int byte_order;
1092
1093   /* Use default: NULL (ZERO). */
1094   bfd *abfd;
1095
1096   /* Use default: NULL (ZERO). */
1097   struct gdbarch_tdep_info *tdep_info;
1098
1099   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1100   enum gdb_osabi osabi;
1101 };
1102
1103 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1104 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1105
1106 /* DEPRECATED - use gdbarch_register() */
1107 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1108
1109 extern void gdbarch_register (enum bfd_architecture architecture,
1110                               gdbarch_init_ftype *,
1111                               gdbarch_dump_tdep_ftype *);
1112
1113
1114 /* Return a freshly allocated, NULL terminated, array of the valid
1115    architecture names.  Since architectures are registered during the
1116    _initialize phase this function only returns useful information
1117    once initialization has been completed. */
1118
1119 extern const char **gdbarch_printable_names (void);
1120
1121
1122 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1123    matches the information provided by INFO. */
1124
1125 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1126
1127
1128 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1129    basic initialization using values obtained from the INFO andTDEP
1130    parameters.  set_gdbarch_*() functions are called to complete the
1131    initialization of the object. */
1132
1133 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1134
1135
1136 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1137    It is assumed that the caller freeds the \`\`struct
1138    gdbarch_tdep''. */
1139
1140 extern void gdbarch_free (struct gdbarch *);
1141
1142
1143 /* Helper function.  Allocate memory from the \`\`struct gdbarch''
1144    obstack.  The memory is freed when the corresponding architecture
1145    is also freed.  */
1146
1147 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1148 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1149 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1150
1151
1152 /* Helper function. Force an update of the current architecture.
1153
1154    The actual architecture selected is determined by INFO, \`\`(gdb) set
1155    architecture'' et.al., the existing architecture and BFD's default
1156    architecture.  INFO should be initialized to zero and then selected
1157    fields should be updated.
1158
1159    Returns non-zero if the update succeeds */
1160
1161 extern int gdbarch_update_p (struct gdbarch_info info);
1162
1163
1164 /* Helper function.  Find an architecture matching info.
1165
1166    INFO should be initialized using gdbarch_info_init, relevant fields
1167    set, and then finished using gdbarch_info_fill.
1168
1169    Returns the corresponding architecture, or NULL if no matching
1170    architecture was found.  "current_gdbarch" is not updated.  */
1171
1172 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1173
1174
1175 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1176
1177    FIXME: kettenis/20031124: Of the functions that follow, only
1178    gdbarch_from_bfd is supposed to survive.  The others will
1179    dissappear since in the future GDB will (hopefully) be truly
1180    multi-arch.  However, for now we're still stuck with the concept of
1181    a single active architecture.  */
1182
1183 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1184
1185
1186 /* Register per-architecture data-pointer.
1187
1188    Reserve space for a per-architecture data-pointer.  An identifier
1189    for the reserved data-pointer is returned.  That identifer should
1190    be saved in a local static variable.
1191
1192    The per-architecture data-pointer is either initialized explicitly
1193    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1194    gdbarch_data()).
1195
1196    Memory for the per-architecture data shall be allocated using
1197    gdbarch_obstack_zalloc.  That memory will be deleted when the
1198    corresponding architecture object is deleted.
1199
1200    When a previously created architecture is re-selected, the
1201    per-architecture data-pointer for that previous architecture is
1202    restored.  INIT() is not re-called.
1203
1204    Multiple registrarants for any architecture are allowed (and
1205    strongly encouraged).  */
1206
1207 struct gdbarch_data;
1208
1209 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1210 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1211 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1212                               struct gdbarch_data *data,
1213                               void *pointer);
1214
1215 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1216
1217
1218
1219 /* Register per-architecture memory region.
1220
1221    Provide a memory-region swap mechanism.  Per-architecture memory
1222    region are created.  These memory regions are swapped whenever the
1223    architecture is changed.  For a new architecture, the memory region
1224    is initialized with zero (0) and the INIT function is called.
1225
1226    Memory regions are swapped / initialized in the order that they are
1227    registered.  NULL DATA and/or INIT values can be specified.
1228
1229    New code should use register_gdbarch_data(). */
1230
1231 typedef void (gdbarch_swap_ftype) (void);
1232 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1233 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1234
1235
1236
1237 /* Set the dynamic target-system-dependent parameters (architecture,
1238    byte-order, ...) using information found in the BFD */
1239
1240 extern void set_gdbarch_from_file (bfd *);
1241
1242
1243 /* Initialize the current architecture to the "first" one we find on
1244    our list.  */
1245
1246 extern void initialize_current_architecture (void);
1247
1248 /* gdbarch trace variable */
1249 extern int gdbarch_debug;
1250
1251 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1252
1253 #endif
1254 EOF
1255 exec 1>&2
1256 #../move-if-change new-gdbarch.h gdbarch.h
1257 compare_new gdbarch.h
1258
1259
1260 #
1261 # C file
1262 #
1263
1264 exec > new-gdbarch.c
1265 copyright
1266 cat <<EOF
1267
1268 #include "defs.h"
1269 #include "arch-utils.h"
1270
1271 #include "gdbcmd.h"
1272 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1273 #include "symcat.h"
1274
1275 #include "floatformat.h"
1276
1277 #include "gdb_assert.h"
1278 #include "gdb_string.h"
1279 #include "gdb-events.h"
1280 #include "reggroups.h"
1281 #include "osabi.h"
1282 #include "symfile.h"            /* For entry_point_address.  */
1283 #include "gdb_obstack.h"
1284
1285 /* Static function declarations */
1286
1287 static void alloc_gdbarch_data (struct gdbarch *);
1288
1289 /* Non-zero if we want to trace architecture code.  */
1290
1291 #ifndef GDBARCH_DEBUG
1292 #define GDBARCH_DEBUG 0
1293 #endif
1294 int gdbarch_debug = GDBARCH_DEBUG;
1295
1296 EOF
1297
1298 # gdbarch open the gdbarch object
1299 printf "\n"
1300 printf "/* Maintain the struct gdbarch object */\n"
1301 printf "\n"
1302 printf "struct gdbarch\n"
1303 printf "{\n"
1304 printf "  /* Has this architecture been fully initialized?  */\n"
1305 printf "  int initialized_p;\n"
1306 printf "\n"
1307 printf "  /* An obstack bound to the lifetime of the architecture.  */\n"
1308 printf "  struct obstack *obstack;\n"
1309 printf "\n"
1310 printf "  /* basic architectural information */\n"
1311 function_list | while do_read
1312 do
1313     if class_is_info_p
1314     then
1315         printf "  ${returntype} ${function};\n"
1316     fi
1317 done
1318 printf "\n"
1319 printf "  /* target specific vector. */\n"
1320 printf "  struct gdbarch_tdep *tdep;\n"
1321 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1322 printf "\n"
1323 printf "  /* per-architecture data-pointers */\n"
1324 printf "  unsigned nr_data;\n"
1325 printf "  void **data;\n"
1326 printf "\n"
1327 printf "  /* per-architecture swap-regions */\n"
1328 printf "  struct gdbarch_swap *swap;\n"
1329 printf "\n"
1330 cat <<EOF
1331   /* Multi-arch values.
1332
1333      When extending this structure you must:
1334
1335      Add the field below.
1336
1337      Declare set/get functions and define the corresponding
1338      macro in gdbarch.h.
1339
1340      gdbarch_alloc(): If zero/NULL is not a suitable default,
1341      initialize the new field.
1342
1343      verify_gdbarch(): Confirm that the target updated the field
1344      correctly.
1345
1346      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1347      field is dumped out
1348
1349      \`\`startup_gdbarch()'': Append an initial value to the static
1350      variable (base values on the host's c-type system).
1351
1352      get_gdbarch(): Implement the set/get functions (probably using
1353      the macro's as shortcuts).
1354
1355      */
1356
1357 EOF
1358 function_list | while do_read
1359 do
1360     if class_is_variable_p
1361     then
1362         printf "  ${returntype} ${function};\n"
1363     elif class_is_function_p
1364     then
1365         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1366     fi
1367 done
1368 printf "};\n"
1369
1370 # A pre-initialized vector
1371 printf "\n"
1372 printf "\n"
1373 cat <<EOF
1374 /* The default architecture uses host values (for want of a better
1375    choice). */
1376 EOF
1377 printf "\n"
1378 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1379 printf "\n"
1380 printf "struct gdbarch startup_gdbarch =\n"
1381 printf "{\n"
1382 printf "  1, /* Always initialized.  */\n"
1383 printf "  NULL, /* The obstack.  */\n"
1384 printf "  /* basic architecture information */\n"
1385 function_list | while do_read
1386 do
1387     if class_is_info_p
1388     then
1389         printf "  ${staticdefault},  /* ${function} */\n"
1390     fi
1391 done
1392 cat <<EOF
1393   /* target specific vector and its dump routine */
1394   NULL, NULL,
1395   /*per-architecture data-pointers and swap regions */
1396   0, NULL, NULL,
1397   /* Multi-arch values */
1398 EOF
1399 function_list | while do_read
1400 do
1401     if class_is_function_p || class_is_variable_p
1402     then
1403         printf "  ${staticdefault},  /* ${function} */\n"
1404     fi
1405 done
1406 cat <<EOF
1407   /* startup_gdbarch() */
1408 };
1409
1410 struct gdbarch *current_gdbarch = &startup_gdbarch;
1411 EOF
1412
1413 # Create a new gdbarch struct
1414 cat <<EOF
1415
1416 /* Create a new \`\`struct gdbarch'' based on information provided by
1417    \`\`struct gdbarch_info''. */
1418 EOF
1419 printf "\n"
1420 cat <<EOF
1421 struct gdbarch *
1422 gdbarch_alloc (const struct gdbarch_info *info,
1423                struct gdbarch_tdep *tdep)
1424 {
1425   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1426      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1427      the current local architecture and not the previous global
1428      architecture.  This ensures that the new architectures initial
1429      values are not influenced by the previous architecture.  Once
1430      everything is parameterised with gdbarch, this will go away.  */
1431   struct gdbarch *current_gdbarch;
1432
1433   /* Create an obstack for allocating all the per-architecture memory,
1434      then use that to allocate the architecture vector.  */
1435   struct obstack *obstack = XMALLOC (struct obstack);
1436   obstack_init (obstack);
1437   current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1438   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1439   current_gdbarch->obstack = obstack;
1440
1441   alloc_gdbarch_data (current_gdbarch);
1442
1443   current_gdbarch->tdep = tdep;
1444 EOF
1445 printf "\n"
1446 function_list | while do_read
1447 do
1448     if class_is_info_p
1449     then
1450         printf "  current_gdbarch->${function} = info->${function};\n"
1451     fi
1452 done
1453 printf "\n"
1454 printf "  /* Force the explicit initialization of these. */\n"
1455 function_list | while do_read
1456 do
1457     if class_is_function_p || class_is_variable_p
1458     then
1459         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1460         then
1461           printf "  current_gdbarch->${function} = ${predefault};\n"
1462         fi
1463     fi
1464 done
1465 cat <<EOF
1466   /* gdbarch_alloc() */
1467
1468   return current_gdbarch;
1469 }
1470 EOF
1471
1472 # Free a gdbarch struct.
1473 printf "\n"
1474 printf "\n"
1475 cat <<EOF
1476 /* Allocate extra space using the per-architecture obstack.  */
1477
1478 void *
1479 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1480 {
1481   void *data = obstack_alloc (arch->obstack, size);
1482   memset (data, 0, size);
1483   return data;
1484 }
1485
1486
1487 /* Free a gdbarch struct.  This should never happen in normal
1488    operation --- once you've created a gdbarch, you keep it around.
1489    However, if an architecture's init function encounters an error
1490    building the structure, it may need to clean up a partially
1491    constructed gdbarch.  */
1492
1493 void
1494 gdbarch_free (struct gdbarch *arch)
1495 {
1496   struct obstack *obstack;
1497   gdb_assert (arch != NULL);
1498   gdb_assert (!arch->initialized_p);
1499   obstack = arch->obstack;
1500   obstack_free (obstack, 0); /* Includes the ARCH.  */
1501   xfree (obstack);
1502 }
1503 EOF
1504
1505 # verify a new architecture
1506 cat <<EOF
1507
1508
1509 /* Ensure that all values in a GDBARCH are reasonable.  */
1510
1511 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1512    just happens to match the global variable \`\`current_gdbarch''.  That
1513    way macros refering to that variable get the local and not the global
1514    version - ulgh.  Once everything is parameterised with gdbarch, this
1515    will go away. */
1516
1517 static void
1518 verify_gdbarch (struct gdbarch *current_gdbarch)
1519 {
1520   struct ui_file *log;
1521   struct cleanup *cleanups;
1522   long dummy;
1523   char *buf;
1524   log = mem_fileopen ();
1525   cleanups = make_cleanup_ui_file_delete (log);
1526   /* fundamental */
1527   if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1528     fprintf_unfiltered (log, "\n\tbyte-order");
1529   if (current_gdbarch->bfd_arch_info == NULL)
1530     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1531   /* Check those that need to be defined for the given multi-arch level. */
1532 EOF
1533 function_list | while do_read
1534 do
1535     if class_is_function_p || class_is_variable_p
1536     then
1537         if [ "x${invalid_p}" = "x0" ]
1538         then
1539             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1540         elif class_is_predicate_p
1541         then
1542             printf "  /* Skip verify of ${function}, has predicate */\n"
1543         # FIXME: See do_read for potential simplification
1544         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1545         then
1546             printf "  if (${invalid_p})\n"
1547             printf "    current_gdbarch->${function} = ${postdefault};\n"
1548         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1549         then
1550             printf "  if (current_gdbarch->${function} == ${predefault})\n"
1551             printf "    current_gdbarch->${function} = ${postdefault};\n"
1552         elif [ -n "${postdefault}" ]
1553         then
1554             printf "  if (current_gdbarch->${function} == 0)\n"
1555             printf "    current_gdbarch->${function} = ${postdefault};\n"
1556         elif [ -n "${invalid_p}" ]
1557         then
1558             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1559             printf "      && (${invalid_p}))\n"
1560             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1561         elif [ -n "${predefault}" ]
1562         then
1563             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1564             printf "      && (current_gdbarch->${function} == ${predefault}))\n"
1565             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1566         fi
1567     fi
1568 done
1569 cat <<EOF
1570   buf = ui_file_xstrdup (log, &dummy);
1571   make_cleanup (xfree, buf);
1572   if (strlen (buf) > 0)
1573     internal_error (__FILE__, __LINE__,
1574                     "verify_gdbarch: the following are invalid ...%s",
1575                     buf);
1576   do_cleanups (cleanups);
1577 }
1578 EOF
1579
1580 # dump the structure
1581 printf "\n"
1582 printf "\n"
1583 cat <<EOF
1584 /* Print out the details of the current architecture. */
1585
1586 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1587    just happens to match the global variable \`\`current_gdbarch''.  That
1588    way macros refering to that variable get the local and not the global
1589    version - ulgh.  Once everything is parameterised with gdbarch, this
1590    will go away. */
1591
1592 void
1593 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1594 {
1595   fprintf_unfiltered (file,
1596                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1597                       GDB_MULTI_ARCH);
1598 EOF
1599 function_list | sort -t: -k 3 | while do_read
1600 do
1601     # First the predicate
1602     if class_is_predicate_p
1603     then
1604         if class_is_multiarch_p
1605         then
1606             printf "  fprintf_unfiltered (file,\n"
1607             printf "                      \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1608             printf "                      gdbarch_${function}_p (current_gdbarch));\n"
1609         else
1610             printf "#ifdef ${macro}_P\n"
1611             printf "  fprintf_unfiltered (file,\n"
1612             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1613             printf "                      \"${macro}_P()\",\n"
1614             printf "                      XSTRING (${macro}_P ()));\n"
1615             printf "  fprintf_unfiltered (file,\n"
1616             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1617             printf "                      ${macro}_P ());\n"
1618             printf "#endif\n"
1619         fi
1620     fi
1621     # multiarch functions don't have macros.
1622     if class_is_multiarch_p
1623     then
1624         printf "  fprintf_unfiltered (file,\n"
1625         printf "                      \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1626         printf "                      (long) current_gdbarch->${function});\n"
1627         continue
1628     fi
1629     # Print the macro definition.
1630     printf "#ifdef ${macro}\n"
1631     if class_is_function_p
1632     then
1633         printf "  fprintf_unfiltered (file,\n"
1634         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1635         printf "                      \"${macro}(${actual})\",\n"
1636         printf "                      XSTRING (${macro} (${actual})));\n"
1637     else
1638         printf "  fprintf_unfiltered (file,\n"
1639         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1640         printf "                      XSTRING (${macro}));\n"
1641     fi
1642     if [ "x${print_p}" = "x()" ]
1643     then
1644         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1645     elif [ "x${print_p}" = "x0" ]
1646     then
1647         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1648     elif [ -n "${print_p}" ]
1649     then
1650         printf "  if (${print_p})\n"
1651         printf "    fprintf_unfiltered (file,\n"
1652         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1653         printf "                        ${print});\n"
1654     elif class_is_function_p
1655     then
1656         printf "  fprintf_unfiltered (file,\n"
1657         printf "                      \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1658         printf "                      (long) current_gdbarch->${function}\n"
1659         printf "                      /*${macro} ()*/);\n"
1660     else
1661         printf "  fprintf_unfiltered (file,\n"
1662         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1663         printf "                      ${print});\n"
1664     fi
1665     printf "#endif\n"
1666 done
1667 cat <<EOF
1668   if (current_gdbarch->dump_tdep != NULL)
1669     current_gdbarch->dump_tdep (current_gdbarch, file);
1670 }
1671 EOF
1672
1673
1674 # GET/SET
1675 printf "\n"
1676 cat <<EOF
1677 struct gdbarch_tdep *
1678 gdbarch_tdep (struct gdbarch *gdbarch)
1679 {
1680   if (gdbarch_debug >= 2)
1681     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1682   return gdbarch->tdep;
1683 }
1684 EOF
1685 printf "\n"
1686 function_list | while do_read
1687 do
1688     if class_is_predicate_p
1689     then
1690         printf "\n"
1691         printf "int\n"
1692         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1693         printf "{\n"
1694         printf "  gdb_assert (gdbarch != NULL);\n"
1695         printf "  return ${predicate};\n"
1696         printf "}\n"
1697     fi
1698     if class_is_function_p
1699     then
1700         printf "\n"
1701         printf "${returntype}\n"
1702         if [ "x${formal}" = "xvoid" ]
1703         then
1704           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1705         else
1706           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1707         fi
1708         printf "{\n"
1709         printf "  gdb_assert (gdbarch != NULL);\n"
1710         printf "  gdb_assert (gdbarch->${function} != NULL);\n"
1711         if class_is_predicate_p && test -n "${predefault}"
1712         then
1713             # Allow a call to a function with a predicate.
1714             printf "  /* Do not check predicate: ${predicate}, allow call.  */\n"
1715         fi
1716         printf "  if (gdbarch_debug >= 2)\n"
1717         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1718         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1719         then
1720             if class_is_multiarch_p
1721             then
1722                 params="gdbarch"
1723             else
1724                 params=""
1725             fi
1726         else
1727             if class_is_multiarch_p
1728             then
1729                 params="gdbarch, ${actual}"
1730             else
1731                 params="${actual}"
1732             fi
1733         fi
1734         if [ "x${returntype}" = "xvoid" ]
1735         then
1736           printf "  gdbarch->${function} (${params});\n"
1737         else
1738           printf "  return gdbarch->${function} (${params});\n"
1739         fi
1740         printf "}\n"
1741         printf "\n"
1742         printf "void\n"
1743         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1744         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1745         printf "{\n"
1746         printf "  gdbarch->${function} = ${function};\n"
1747         printf "}\n"
1748     elif class_is_variable_p
1749     then
1750         printf "\n"
1751         printf "${returntype}\n"
1752         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1753         printf "{\n"
1754         printf "  gdb_assert (gdbarch != NULL);\n"
1755         if [ "x${invalid_p}" = "x0" ]
1756         then
1757             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1758         elif [ -n "${invalid_p}" ]
1759         then
1760             printf "  /* Check variable is valid.  */\n"
1761             printf "  gdb_assert (!(${invalid_p}));\n"
1762         elif [ -n "${predefault}" ]
1763         then
1764             printf "  /* Check variable changed from pre-default.  */\n"
1765             printf "  gdb_assert (gdbarch->${function} != ${predefault});\n"
1766         fi
1767         printf "  if (gdbarch_debug >= 2)\n"
1768         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1769         printf "  return gdbarch->${function};\n"
1770         printf "}\n"
1771         printf "\n"
1772         printf "void\n"
1773         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1774         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1775         printf "{\n"
1776         printf "  gdbarch->${function} = ${function};\n"
1777         printf "}\n"
1778     elif class_is_info_p
1779     then
1780         printf "\n"
1781         printf "${returntype}\n"
1782         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1783         printf "{\n"
1784         printf "  gdb_assert (gdbarch != NULL);\n"
1785         printf "  if (gdbarch_debug >= 2)\n"
1786         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1787         printf "  return gdbarch->${function};\n"
1788         printf "}\n"
1789     fi
1790 done
1791
1792 # All the trailing guff
1793 cat <<EOF
1794
1795
1796 /* Keep a registry of per-architecture data-pointers required by GDB
1797    modules. */
1798
1799 struct gdbarch_data
1800 {
1801   unsigned index;
1802   int init_p;
1803   gdbarch_data_init_ftype *init;
1804 };
1805
1806 struct gdbarch_data_registration
1807 {
1808   struct gdbarch_data *data;
1809   struct gdbarch_data_registration *next;
1810 };
1811
1812 struct gdbarch_data_registry
1813 {
1814   unsigned nr;
1815   struct gdbarch_data_registration *registrations;
1816 };
1817
1818 struct gdbarch_data_registry gdbarch_data_registry =
1819 {
1820   0, NULL,
1821 };
1822
1823 struct gdbarch_data *
1824 register_gdbarch_data (gdbarch_data_init_ftype *init)
1825 {
1826   struct gdbarch_data_registration **curr;
1827   /* Append the new registraration.  */
1828   for (curr = &gdbarch_data_registry.registrations;
1829        (*curr) != NULL;
1830        curr = &(*curr)->next);
1831   (*curr) = XMALLOC (struct gdbarch_data_registration);
1832   (*curr)->next = NULL;
1833   (*curr)->data = XMALLOC (struct gdbarch_data);
1834   (*curr)->data->index = gdbarch_data_registry.nr++;
1835   (*curr)->data->init = init;
1836   (*curr)->data->init_p = 1;
1837   return (*curr)->data;
1838 }
1839
1840
1841 /* Create/delete the gdbarch data vector. */
1842
1843 static void
1844 alloc_gdbarch_data (struct gdbarch *gdbarch)
1845 {
1846   gdb_assert (gdbarch->data == NULL);
1847   gdbarch->nr_data = gdbarch_data_registry.nr;
1848   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1849 }
1850
1851 /* Initialize the current value of the specified per-architecture
1852    data-pointer. */
1853
1854 void
1855 set_gdbarch_data (struct gdbarch *gdbarch,
1856                   struct gdbarch_data *data,
1857                   void *pointer)
1858 {
1859   gdb_assert (data->index < gdbarch->nr_data);
1860   gdb_assert (gdbarch->data[data->index] == NULL);
1861   gdbarch->data[data->index] = pointer;
1862 }
1863
1864 /* Return the current value of the specified per-architecture
1865    data-pointer. */
1866
1867 void *
1868 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1869 {
1870   gdb_assert (data->index < gdbarch->nr_data);
1871   /* The data-pointer isn't initialized, call init() to get a value but
1872      only if the architecture initializaiton has completed.  Otherwise
1873      punt - hope that the caller knows what they are doing.  */
1874   if (gdbarch->data[data->index] == NULL
1875       && gdbarch->initialized_p)
1876     {
1877       /* Be careful to detect an initialization cycle.  */
1878       gdb_assert (data->init_p);
1879       data->init_p = 0;
1880       gdb_assert (data->init != NULL);
1881       gdbarch->data[data->index] = data->init (gdbarch);
1882       data->init_p = 1;
1883       gdb_assert (gdbarch->data[data->index] != NULL);
1884     }
1885   return gdbarch->data[data->index];
1886 }
1887
1888
1889
1890 /* Keep a registry of swapped data required by GDB modules. */
1891
1892 struct gdbarch_swap
1893 {
1894   void *swap;
1895   struct gdbarch_swap_registration *source;
1896   struct gdbarch_swap *next;
1897 };
1898
1899 struct gdbarch_swap_registration
1900 {
1901   void *data;
1902   unsigned long sizeof_data;
1903   gdbarch_swap_ftype *init;
1904   struct gdbarch_swap_registration *next;
1905 };
1906
1907 struct gdbarch_swap_registry
1908 {
1909   int nr;
1910   struct gdbarch_swap_registration *registrations;
1911 };
1912
1913 struct gdbarch_swap_registry gdbarch_swap_registry =
1914 {
1915   0, NULL,
1916 };
1917
1918 void
1919 register_gdbarch_swap (void *data,
1920                        unsigned long sizeof_data,
1921                        gdbarch_swap_ftype *init)
1922 {
1923   struct gdbarch_swap_registration **rego;
1924   for (rego = &gdbarch_swap_registry.registrations;
1925        (*rego) != NULL;
1926        rego = &(*rego)->next);
1927   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1928   (*rego)->next = NULL;
1929   (*rego)->init = init;
1930   (*rego)->data = data;
1931   (*rego)->sizeof_data = sizeof_data;
1932 }
1933
1934 static void
1935 current_gdbarch_swap_init_hack (void)
1936 {
1937   struct gdbarch_swap_registration *rego;
1938   struct gdbarch_swap **curr = &current_gdbarch->swap;
1939   for (rego = gdbarch_swap_registry.registrations;
1940        rego != NULL;
1941        rego = rego->next)
1942     {
1943       if (rego->data != NULL)
1944         {
1945           (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1946                                             struct gdbarch_swap);
1947           (*curr)->source = rego;
1948           (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1949                                                   rego->sizeof_data);
1950           (*curr)->next = NULL;
1951           curr = &(*curr)->next;
1952         }
1953       if (rego->init != NULL)
1954         rego->init ();
1955     }
1956 }
1957
1958 static struct gdbarch *
1959 current_gdbarch_swap_out_hack (void)
1960 {
1961   struct gdbarch *old_gdbarch = current_gdbarch;
1962   struct gdbarch_swap *curr;
1963
1964   gdb_assert (old_gdbarch != NULL);
1965   for (curr = old_gdbarch->swap;
1966        curr != NULL;
1967        curr = curr->next)
1968     {
1969       memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1970       memset (curr->source->data, 0, curr->source->sizeof_data);
1971     }
1972   current_gdbarch = NULL;
1973   return old_gdbarch;
1974 }
1975
1976 static void
1977 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1978 {
1979   struct gdbarch_swap *curr;
1980
1981   gdb_assert (current_gdbarch == NULL);
1982   for (curr = new_gdbarch->swap;
1983        curr != NULL;
1984        curr = curr->next)
1985     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1986   current_gdbarch = new_gdbarch;
1987 }
1988
1989
1990 /* Keep a registry of the architectures known by GDB. */
1991
1992 struct gdbarch_registration
1993 {
1994   enum bfd_architecture bfd_architecture;
1995   gdbarch_init_ftype *init;
1996   gdbarch_dump_tdep_ftype *dump_tdep;
1997   struct gdbarch_list *arches;
1998   struct gdbarch_registration *next;
1999 };
2000
2001 static struct gdbarch_registration *gdbarch_registry = NULL;
2002
2003 static void
2004 append_name (const char ***buf, int *nr, const char *name)
2005 {
2006   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2007   (*buf)[*nr] = name;
2008   *nr += 1;
2009 }
2010
2011 const char **
2012 gdbarch_printable_names (void)
2013 {
2014   /* Accumulate a list of names based on the registed list of
2015      architectures. */
2016   enum bfd_architecture a;
2017   int nr_arches = 0;
2018   const char **arches = NULL;
2019   struct gdbarch_registration *rego;
2020   for (rego = gdbarch_registry;
2021        rego != NULL;
2022        rego = rego->next)
2023     {
2024       const struct bfd_arch_info *ap;
2025       ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2026       if (ap == NULL)
2027         internal_error (__FILE__, __LINE__,
2028                         "gdbarch_architecture_names: multi-arch unknown");
2029       do
2030         {
2031           append_name (&arches, &nr_arches, ap->printable_name);
2032           ap = ap->next;
2033         }
2034       while (ap != NULL);
2035     }
2036   append_name (&arches, &nr_arches, NULL);
2037   return arches;
2038 }
2039
2040
2041 void
2042 gdbarch_register (enum bfd_architecture bfd_architecture,
2043                   gdbarch_init_ftype *init,
2044                   gdbarch_dump_tdep_ftype *dump_tdep)
2045 {
2046   struct gdbarch_registration **curr;
2047   const struct bfd_arch_info *bfd_arch_info;
2048   /* Check that BFD recognizes this architecture */
2049   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2050   if (bfd_arch_info == NULL)
2051     {
2052       internal_error (__FILE__, __LINE__,
2053                       "gdbarch: Attempt to register unknown architecture (%d)",
2054                       bfd_architecture);
2055     }
2056   /* Check that we haven't seen this architecture before */
2057   for (curr = &gdbarch_registry;
2058        (*curr) != NULL;
2059        curr = &(*curr)->next)
2060     {
2061       if (bfd_architecture == (*curr)->bfd_architecture)
2062         internal_error (__FILE__, __LINE__,
2063                         "gdbarch: Duplicate registraration of architecture (%s)",
2064                         bfd_arch_info->printable_name);
2065     }
2066   /* log it */
2067   if (gdbarch_debug)
2068     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2069                         bfd_arch_info->printable_name,
2070                         (long) init);
2071   /* Append it */
2072   (*curr) = XMALLOC (struct gdbarch_registration);
2073   (*curr)->bfd_architecture = bfd_architecture;
2074   (*curr)->init = init;
2075   (*curr)->dump_tdep = dump_tdep;
2076   (*curr)->arches = NULL;
2077   (*curr)->next = NULL;
2078 }
2079
2080 void
2081 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2082                        gdbarch_init_ftype *init)
2083 {
2084   gdbarch_register (bfd_architecture, init, NULL);
2085 }
2086
2087
2088 /* Look for an architecture using gdbarch_info.  Base search on only
2089    BFD_ARCH_INFO and BYTE_ORDER. */
2090
2091 struct gdbarch_list *
2092 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2093                              const struct gdbarch_info *info)
2094 {
2095   for (; arches != NULL; arches = arches->next)
2096     {
2097       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2098         continue;
2099       if (info->byte_order != arches->gdbarch->byte_order)
2100         continue;
2101       if (info->osabi != arches->gdbarch->osabi)
2102         continue;
2103       return arches;
2104     }
2105   return NULL;
2106 }
2107
2108
2109 /* Find an architecture that matches the specified INFO.  Create a new
2110    architecture if needed.  Return that new architecture.  Assumes
2111    that there is no current architecture.  */
2112
2113 static struct gdbarch *
2114 find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
2115 {
2116   struct gdbarch *new_gdbarch;
2117   struct gdbarch_registration *rego;
2118
2119   /* The existing architecture has been swapped out - all this code
2120      works from a clean slate.  */
2121   gdb_assert (current_gdbarch == NULL);
2122
2123   /* Fill in missing parts of the INFO struct using a number of
2124      sources: "set ..."; INFOabfd supplied; and the existing
2125      architecture.  */
2126   gdbarch_info_fill (old_gdbarch, &info);
2127
2128   /* Must have found some sort of architecture. */
2129   gdb_assert (info.bfd_arch_info != NULL);
2130
2131   if (gdbarch_debug)
2132     {
2133       fprintf_unfiltered (gdb_stdlog,
2134                           "find_arch_by_info: info.bfd_arch_info %s\n",
2135                           (info.bfd_arch_info != NULL
2136                            ? info.bfd_arch_info->printable_name
2137                            : "(null)"));
2138       fprintf_unfiltered (gdb_stdlog,
2139                           "find_arch_by_info: info.byte_order %d (%s)\n",
2140                           info.byte_order,
2141                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2142                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2143                            : "default"));
2144       fprintf_unfiltered (gdb_stdlog,
2145                           "find_arch_by_info: info.osabi %d (%s)\n",
2146                           info.osabi, gdbarch_osabi_name (info.osabi));
2147       fprintf_unfiltered (gdb_stdlog,
2148                           "find_arch_by_info: info.abfd 0x%lx\n",
2149                           (long) info.abfd);
2150       fprintf_unfiltered (gdb_stdlog,
2151                           "find_arch_by_info: info.tdep_info 0x%lx\n",
2152                           (long) info.tdep_info);
2153     }
2154
2155   /* Find the tdep code that knows about this architecture.  */
2156   for (rego = gdbarch_registry;
2157        rego != NULL;
2158        rego = rego->next)
2159     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2160       break;
2161   if (rego == NULL)
2162     {
2163       if (gdbarch_debug)
2164         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2165                             "No matching architecture\n");
2166       return 0;
2167     }
2168
2169   /* Ask the tdep code for an architecture that matches "info".  */
2170   new_gdbarch = rego->init (info, rego->arches);
2171
2172   /* Did the tdep code like it?  No.  Reject the change and revert to
2173      the old architecture.  */
2174   if (new_gdbarch == NULL)
2175     {
2176       if (gdbarch_debug)
2177         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2178                             "Target rejected architecture\n");
2179       return NULL;
2180     }
2181
2182   /* Is this a pre-existing architecture (as determined by already
2183      being initialized)?  Move it to the front of the architecture
2184      list (keeping the list sorted Most Recently Used).  */
2185   if (new_gdbarch->initialized_p)
2186     {
2187       struct gdbarch_list **list;
2188       struct gdbarch_list *this;
2189       if (gdbarch_debug)
2190         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2191                             "Previous architecture 0x%08lx (%s) selected\n",
2192                             (long) new_gdbarch,
2193                             new_gdbarch->bfd_arch_info->printable_name);
2194       /* Find the existing arch in the list.  */
2195       for (list = &rego->arches;
2196            (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2197            list = &(*list)->next);
2198       /* It had better be in the list of architectures.  */
2199       gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2200       /* Unlink THIS.  */
2201       this = (*list);
2202       (*list) = this->next;
2203       /* Insert THIS at the front.  */
2204       this->next = rego->arches;
2205       rego->arches = this;
2206       /* Return it.  */
2207       return new_gdbarch;
2208     }
2209
2210   /* It's a new architecture.  */
2211   if (gdbarch_debug)
2212     fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2213                         "New architecture 0x%08lx (%s) selected\n",
2214                         (long) new_gdbarch,
2215                         new_gdbarch->bfd_arch_info->printable_name);
2216
2217   /* Insert the new architecture into the front of the architecture
2218      list (keep the list sorted Most Recently Used).  */
2219   {
2220     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2221     this->next = rego->arches;
2222     this->gdbarch = new_gdbarch;
2223     rego->arches = this;
2224   }
2225
2226   /* Check that the newly installed architecture is valid.  Plug in
2227      any post init values.  */
2228   new_gdbarch->dump_tdep = rego->dump_tdep;
2229   verify_gdbarch (new_gdbarch);
2230   new_gdbarch->initialized_p = 1;
2231
2232   /* Initialize any per-architecture swap areas.  This phase requires
2233      a valid global CURRENT_GDBARCH.  Set it momentarially, and then
2234      swap the entire architecture out.  */
2235   current_gdbarch = new_gdbarch;
2236   current_gdbarch_swap_init_hack ();
2237   current_gdbarch_swap_out_hack ();
2238
2239   if (gdbarch_debug)
2240     gdbarch_dump (new_gdbarch, gdb_stdlog);
2241
2242   return new_gdbarch;
2243 }
2244
2245 struct gdbarch *
2246 gdbarch_find_by_info (struct gdbarch_info info)
2247 {
2248   /* Save the previously selected architecture, setting the global to
2249      NULL.  This stops things like gdbarch->init() trying to use the
2250      previous architecture's configuration.  The previous architecture
2251      may not even be of the same architecture family.  The most recent
2252      architecture of the same family is found at the head of the
2253      rego->arches list.  */
2254   struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2255
2256   /* Find the specified architecture.  */
2257   struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
2258
2259   /* Restore the existing architecture.  */
2260   gdb_assert (current_gdbarch == NULL);
2261   current_gdbarch_swap_in_hack (old_gdbarch);
2262
2263   return new_gdbarch;
2264 }
2265
2266 /* Make the specified architecture current, swapping the existing one
2267    out.  */
2268
2269 void
2270 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2271 {
2272   gdb_assert (new_gdbarch != NULL);
2273   gdb_assert (current_gdbarch != NULL);
2274   gdb_assert (new_gdbarch->initialized_p);
2275   current_gdbarch_swap_out_hack ();
2276   current_gdbarch_swap_in_hack (new_gdbarch);
2277   architecture_changed_event ();
2278 }
2279
2280 extern void _initialize_gdbarch (void);
2281
2282 void
2283 _initialize_gdbarch (void)
2284 {
2285   struct cmd_list_element *c;
2286
2287   add_show_from_set (add_set_cmd ("arch",
2288                                   class_maintenance,
2289                                   var_zinteger,
2290                                   (char *)&gdbarch_debug,
2291                                   "Set architecture debugging.\\n\\
2292 When non-zero, architecture debugging is enabled.", &setdebuglist),
2293                      &showdebuglist);
2294   c = add_set_cmd ("archdebug",
2295                    class_maintenance,
2296                    var_zinteger,
2297                    (char *)&gdbarch_debug,
2298                    "Set architecture debugging.\\n\\
2299 When non-zero, architecture debugging is enabled.", &setlist);
2300
2301   deprecate_cmd (c, "set debug arch");
2302   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2303 }
2304 EOF
2305
2306 # close things off
2307 exec 1>&2
2308 #../move-if-change new-gdbarch.c gdbarch.c
2309 compare_new gdbarch.c