gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 #
   5 # Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
   6 # Foundation, Inc.
   7 #
   8 #
   9 # This file is part of GDB.
  10 #
  11 # This program is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 2 of the License, or
  14 # (at your option) any later version.
  15 #
  16 # This program is distributed in the hope that it will be useful,
  17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with this program; if not, write to the Free Software
  23 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  24
  25 # Make certain that the script is running in an internationalized
  26 # environment.
  27 LANG=c ; export LANG
  28 LC_ALL=c ; export LC_ALL
  29
  30
  31 compare_new ()
  32 {
  33     file=$1
  34     if test ! -r ${file}
  35     then
  36         echo "${file} missing? cp new-${file} ${file}" 1>&2
  37     elif diff -u ${file} new-${file}
  38     then
  39         echo "${file} unchanged" 1>&2
  40     else
  41         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  42     fi
  43 }
  44
  45
  46 # Format of the input table
  47 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  48
  49 do_read ()
  50 {
  51     comment=""
  52     class=""
  53     while read line
  54     do
  55         if test "${line}" = ""
  56         then
  57             continue
  58         elif test "${line}" = "#" -a "${comment}" = ""
  59         then
  60             continue
  61         elif expr "${line}" : "#" > /dev/null
  62         then
  63             comment="${comment}
  64 ${line}"
  65         else
  66
  67             # The semantics of IFS varies between different SH's.  Some
  68             # treat ``::' as three fields while some treat it as just too.
  69             # Work around this by eliminating ``::'' ....
  70             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  71
  72             OFS="${IFS}" ; IFS="[:]"
  73             eval read ${read} <<EOF
  74 ${line}
  75 EOF
  76             IFS="${OFS}"
  77
  78             # .... and then going back through each field and strip out those
  79             # that ended up with just that space character.
  80             for r in ${read}
  81             do
  82                 if eval test \"\${${r}}\" = \"\ \"
  83                 then
  84                     eval ${r}=""
  85                 fi
  86             done
  87
  88             case "${level}" in
  89                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  90                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  91                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  92                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  93             esac
  94
  95             case "${class}" in
  96                 m ) staticdefault="${predefault}" ;;
  97                 M ) staticdefault="0" ;;
  98                 * ) test "${staticdefault}" || staticdefault=0 ;;
  99             esac
 100
 101             # come up with a format, use a few guesses for variables
 102             case ":${class}:${fmt}:${print}:" in
 103                 :[vV]::: )
 104                     if [ "${returntype}" = int ]
 105                     then
 106                         fmt="%d"
 107                         print="${macro}"
 108                     elif [ "${returntype}" = long ]
 109                     then
 110                         fmt="%ld"
 111                         print="${macro}"
 112                     fi
 113                     ;;
 114             esac
 115             test "${fmt}" || fmt="%ld"
 116             test "${print}" || print="(long) ${macro}"
 117
 118             case "${class}" in
 119             F | V | M )
 120                 case "${invalid_p}" in
 121                 "" )
 122                     if test -n "${predefault}"
 123                     then
 124                         #invalid_p="gdbarch->${function} == ${predefault}"
 125                         predicate="gdbarch->${function} != ${predefault}"
 126                     elif class_is_variable_p
 127                     then
 128                         predicate="gdbarch->${function} != 0"
 129                     elif class_is_function_p
 130                     then
 131                         predicate="gdbarch->${function} != NULL"
 132                     fi
 133                     ;;
 134                 * )
 135                     echo "Predicate function ${function} with invalid_p." 1>&2
 136                     kill $$
 137                     exit 1
 138                     ;;
 139                 esac
 140             esac
 141
 142             # PREDEFAULT is a valid fallback definition of MEMBER when
 143             # multi-arch is not enabled.  This ensures that the
 144             # default value, when multi-arch is the same as the
 145             # default value when not multi-arch.  POSTDEFAULT is
 146             # always a valid definition of MEMBER as this again
 147             # ensures consistency.
 148
 149             if [ -n "${postdefault}" ]
 150             then
 151                 fallbackdefault="${postdefault}"
 152             elif [ -n "${predefault}" ]
 153             then
 154                 fallbackdefault="${predefault}"
 155             else
 156                 fallbackdefault="0"
 157             fi
 158
 159             #NOT YET: See gdbarch.log for basic verification of
 160             # database
 161
 162             break
 163         fi
 164     done
 165     if [ -n "${class}" ]
 166     then
 167         true
 168     else
 169         false
 170     fi
 171 }
 172
 173
 174 fallback_default_p ()
 175 {
 176     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 177         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 178 }
 179
 180 class_is_variable_p ()
 181 {
 182     case "${class}" in
 183         *v* | *V* ) true ;;
 184         * ) false ;;
 185     esac
 186 }
 187
 188 class_is_function_p ()
 189 {
 190     case "${class}" in
 191         *f* | *F* | *m* | *M* ) true ;;
 192         * ) false ;;
 193     esac
 194 }
 195
 196 class_is_multiarch_p ()
 197 {
 198     case "${class}" in
 199         *m* | *M* ) true ;;
 200         * ) false ;;
 201     esac
 202 }
 203
 204 class_is_predicate_p ()
 205 {
 206     case "${class}" in
 207         *F* | *V* | *M* ) true ;;
 208         * ) false ;;
 209     esac
 210 }
 211
 212 class_is_info_p ()
 213 {
 214     case "${class}" in
 215         *i* ) true ;;
 216         * ) false ;;
 217     esac
 218 }
 219
 220
 221 # dump out/verify the doco
 222 for field in ${read}
 223 do
 224   case ${field} in
 225
 226     class ) : ;;
 227
 228         # # -> line disable
 229         # f -> function
 230         #   hiding a function
 231         # F -> function + predicate
 232         #   hiding a function + predicate to test function validity
 233         # v -> variable
 234         #   hiding a variable
 235         # V -> variable + predicate
 236         #   hiding a variable + predicate to test variables validity
 237         # i -> set from info
 238         #   hiding something from the ``struct info'' object
 239         # m -> multi-arch function
 240         #   hiding a multi-arch function (parameterised with the architecture)
 241         # M -> multi-arch function + predicate
 242         #   hiding a multi-arch function + predicate to test function validity
 243
 244     level ) : ;;
 245
 246         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 247         # LEVEL is a predicate on checking that a given method is
 248         # initialized (using INVALID_P).
 249
 250     macro ) : ;;
 251
 252         # The name of the MACRO that this method is to be accessed by.
 253
 254     returntype ) : ;;
 255
 256         # For functions, the return type; for variables, the data type
 257
 258     function ) : ;;
 259
 260         # For functions, the member function name; for variables, the
 261         # variable name.  Member function names are always prefixed with
 262         # ``gdbarch_'' for name-space purity.
 263
 264     formal ) : ;;
 265
 266         # The formal argument list.  It is assumed that the formal
 267         # argument list includes the actual name of each list element.
 268         # A function with no arguments shall have ``void'' as the
 269         # formal argument list.
 270
 271     actual ) : ;;
 272
 273         # The list of actual arguments.  The arguments specified shall
 274         # match the FORMAL list given above.  Functions with out
 275         # arguments leave this blank.
 276
 277     attrib ) : ;;
 278
 279         # Any GCC attributes that should be attached to the function
 280         # declaration.  At present this field is unused.
 281
 282     staticdefault ) : ;;
 283
 284         # To help with the GDB startup a static gdbarch object is
 285         # created.  STATICDEFAULT is the value to insert into that
 286         # static gdbarch object.  Since this a static object only
 287         # simple expressions can be used.
 288
 289         # If STATICDEFAULT is empty, zero is used.
 290
 291     predefault ) : ;;
 292
 293         # An initial value to assign to MEMBER of the freshly
 294         # malloc()ed gdbarch object.  After initialization, the
 295         # freshly malloc()ed object is passed to the target
 296         # architecture code for further updates.
 297
 298         # If PREDEFAULT is empty, zero is used.
 299
 300         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 301         # INVALID_P are specified, PREDEFAULT will be used as the
 302         # default for the non- multi-arch target.
 303
 304         # A zero PREDEFAULT function will force the fallback to call
 305         # internal_error().
 306
 307         # Variable declarations can refer to ``gdbarch'' which will
 308         # contain the current architecture.  Care should be taken.
 309
 310     postdefault ) : ;;
 311
 312         # A value to assign to MEMBER of the new gdbarch object should
 313         # the target architecture code fail to change the PREDEFAULT
 314         # value.
 315
 316         # If POSTDEFAULT is empty, no post update is performed.
 317
 318         # If both INVALID_P and POSTDEFAULT are non-empty then
 319         # INVALID_P will be used to determine if MEMBER should be
 320         # changed to POSTDEFAULT.
 321
 322         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 323         # specified, POSTDEFAULT will be used as the default for the
 324         # non- multi-arch target (regardless of the value of
 325         # PREDEFAULT).
 326
 327         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 328
 329         # Variable declarations can refer to ``current_gdbarch'' which
 330         # will contain the current architecture.  Care should be
 331         # taken.
 332
 333     invalid_p ) : ;;
 334
 335         # A predicate equation that validates MEMBER.  Non-zero is
 336         # returned if the code creating the new architecture failed to
 337         # initialize MEMBER or the initialized the member is invalid.
 338         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 339         # that value.  If POSTDEFAULT is empty then internal_error()
 340         # is called.
 341
 342         # If INVALID_P is empty, a check that MEMBER is no longer
 343         # equal to PREDEFAULT is used.
 344
 345         # The expression ``0'' disables the INVALID_P check making
 346         # PREDEFAULT a legitimate value.
 347
 348         # See also PREDEFAULT and POSTDEFAULT.
 349
 350     fmt ) : ;;
 351
 352         # printf style format string that can be used to print out the
 353         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 354         # ignored and the function address is printed.
 355
 356         # If FMT is empty, ``%ld'' is used.
 357
 358     print ) : ;;
 359
 360         # An optional equation that casts MEMBER to a value suitable
 361         # for formatting by FMT.
 362
 363         # If PRINT is empty, ``(long)'' is used.
 364
 365     print_p ) : ;;
 366
 367         # An optional indicator for any predicte to wrap around the
 368         # print member code.
 369
 370         #   () -> Call a custom function to do the dump.
 371         #   exp -> Wrap print up in ``if (${print_p}) ...
 372         #   ``'' -> No predicate
 373
 374         # If PRINT_P is empty, ``1'' is always used.
 375
 376     description ) : ;;
 377
 378         # Currently unused.
 379
 380     *)
 381         echo "Bad field ${field}"
 382         exit 1;;
 383   esac
 384 done
 385
 386
 387 function_list ()
 388 {
 389   # See below (DOCO) for description of each field
 390   cat <<EOF
 391 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 392 #
 393 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
 394 #
 395 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
 396 # Number of bits in a char or unsigned char for the target machine.
 397 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 398 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 399 #
 400 # Number of bits in a short or unsigned short for the target machine.
 401 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 402 # Number of bits in an int or unsigned int for the target machine.
 403 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 404 # Number of bits in a long or unsigned long for the target machine.
 405 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 406 # Number of bits in a long long or unsigned long long for the target
 407 # machine.
 408 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 409 # Number of bits in a float for the target machine.
 410 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 411 # Number of bits in a double for the target machine.
 412 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 413 # Number of bits in a long double for the target machine.
 414 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
 415 # For most targets, a pointer on the target and its representation as an
 416 # address in GDB have the same size and "look the same".  For such a
 417 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 418 # / addr_bit will be set from it.
 419 #
 420 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 421 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 422 #
 423 # ptr_bit is the size of a pointer on the target
 424 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 425 # addr_bit is the size of a target address as represented in gdb
 426 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 427 # Number of bits in a BFD_VMA for the target object file format.
 428 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 429 #
 430 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
 431 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
 432 #
 433 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
 434 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 435 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
 436 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
 437 # Function for getting target's idea of a frame pointer.  FIXME: GDB's
 438 # whole scheme for dealing with "frames" and "frame pointers" needs a
 439 # serious shakedown.
 440 f:2:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0
 441 #
 442 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
 443 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
 444 #
 445 v:2:NUM_REGS:int:num_regs::::0:-1
 446 # This macro gives the number of pseudo-registers that live in the
 447 # register namespace but do not get fetched or stored on the target.
 448 # These pseudo-registers may be aliases for other registers,
 449 # combinations of other registers, or they may be computed by GDB.
 450 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 451
 452 # GDB's standard (or well known) register numbers.  These can map onto
 453 # a real register or a pseudo (computed) register or not be defined at
 454 # all (-1).
 455 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
 456 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
 457 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
 458 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
 459 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 460 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 461 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 462 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 463 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 464 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 465 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 466 # Convert from an sdb register number to an internal gdb register number.
 467 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 468 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 469 f::REGISTER_NAME:const char *:register_name:int regnr:regnr
 470
 471 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
 472 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr
 473 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
 474 F:2:DEPRECATED_REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr
 475 # DEPRECATED_REGISTER_BYTES can be deleted.  The value is computed
 476 # from REGISTER_TYPE.
 477 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
 478 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
 479 # register offsets computed using just REGISTER_TYPE, this can be
 480 # deleted.  See: maint print registers.  NOTE: cagney/2002-05-02: This
 481 # function with predicate has a valid (callable) initial value.  As a
 482 # consequence, even when the predicate is false, the corresponding
 483 # function works.  This simplifies the migration process - old code,
 484 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
 485 F::DEPRECATED_REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
 486 # If all registers have identical raw and virtual sizes and those
 487 # sizes agree with the value computed from REGISTER_TYPE,
 488 # DEPRECATED_REGISTER_RAW_SIZE can be deleted.  See: maint print
 489 # registers.
 490 F:2:DEPRECATED_REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 491 # If all registers have identical raw and virtual sizes and those
 492 # sizes agree with the value computed from REGISTER_TYPE,
 493 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted.  See: maint print
 494 # registers.
 495 F:2:DEPRECATED_REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 496 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted.  It has been
 497 # replaced by the constant MAX_REGISTER_SIZE.
 498 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
 499 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted.  It has been
 500 # replaced by the constant MAX_REGISTER_SIZE.
 501 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
 502
 503 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
 504 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info
 505 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 506 # SAVE_DUMMY_FRAME_TOS.
 507 F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp
 508 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 509 # DEPRECATED_FP_REGNUM.
 510 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
 511 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 512 # DEPRECATED_TARGET_READ_FP.
 513 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
 514
 515 # See gdbint.texinfo.  See infcall.c.  New, all singing all dancing,
 516 # replacement for DEPRECATED_PUSH_ARGUMENTS.
 517 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:CORE_ADDR func_addr, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:func_addr, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
 518 # PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS.
 519 F:2:DEPRECATED_PUSH_ARGUMENTS:CORE_ADDR:deprecated_push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr
 520 # DEPRECATED_USE_GENERIC_DUMMY_FRAMES can be deleted.  Always true.
 521 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
 522 # Implement PUSH_RETURN_ADDRESS, and then merge in
 523 # DEPRECATED_PUSH_RETURN_ADDRESS.
 524 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
 525 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
 526 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
 527 # DEPRECATED_REGISTER_SIZE can be deleted.
 528 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
 529 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
 530 # DEPRECATED_CALL_DUMMY_START_OFFSET can be deleted.
 531 v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset
 532 # DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET can be deleted.
 533 v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset
 534 # DEPRECATED_CALL_DUMMY_LENGTH can be deleted.
 535 v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length
 536 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
 537 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 538 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
 539 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 540 # DEPRECATED_FIX_CALL_DUMMY can be deleted.  For the SPARC, implement
 541 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
 542 F::DEPRECATED_FIX_CALL_DUMMY:void:deprecated_fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p
 543 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
 544 M::PUSH_DUMMY_CODE:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr
 545 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
 546 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
 547
 548 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 549 m:2:PRINT_REGISTERS_INFO:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all:::default_print_registers_info::0
 550 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 551 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 552 # MAP a GDB RAW register number onto a simulator register number.  See
 553 # also include/...-sim.h.
 554 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 555 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
 556 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 557 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 558 # setjmp/longjmp support.
 559 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
 560 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 561 # (callable) initial value.  As a consequence, even when the predicate
 562 # is false, the corresponding function works.  This simplifies the
 563 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 564 # doesn't need to be modified.
 565 F::DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::generic_pc_in_call_dummy:generic_pc_in_call_dummy
 566 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
 567 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 568 #
 569 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 570 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 571 F:2:DEPRECATED_GET_SAVED_REGISTER:void:deprecated_get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval
 572 #
 573 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 574 # For raw <-> cooked register conversions, replaced by pseudo registers.
 575 F::DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr
 576 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 577 # For raw <-> cooked register conversions, replaced by pseudo registers.
 578 f:2:DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL:void:deprecated_register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
 579 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 580 # For raw <-> cooked register conversions, replaced by pseudo registers.
 581 f:2:DEPRECATED_REGISTER_CONVERT_TO_RAW:void:deprecated_register_convert_to_raw:struct type *type, int regnum, const char *from, char *to:type, regnum, from, to:::0::0
 582 #
 583 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
 584 f:1:REGISTER_TO_VALUE:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, void *buf:frame, regnum, type, buf::0:legacy_register_to_value::0
 585 f:1:VALUE_TO_REGISTER:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const void *buf:frame, regnum, type, buf::0:legacy_value_to_register::0
 586 #
 587 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 588 f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, void *buf, CORE_ADDR addr:type, buf, addr:::unsigned_address_to_pointer::0
 589 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 590 #
 591 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
 592 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 593 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
 594
 595 # It has been suggested that this, well actually its predecessor,
 596 # should take the type/value of the function to be called and not the
 597 # return type.  This is left as an exercise for the reader.
 598
 599 M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf
 600
 601 # The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
 602 # STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
 603 # into RETURN_VALUE.
 604
 605 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 606 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
 607 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
 608 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 609 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 610 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::generic_use_struct_convention::0
 611
 612 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 613 # ABI suitable for the implementation of a robust extract
 614 # struct-convention return-value address method (the sparc saves the
 615 # address in the callers frame).  All the other cases so far examined,
 616 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 617 # erreneous - the code was incorrectly assuming that the return-value
 618 # address, stored in a register, was preserved across the entire
 619 # function call.
 620
 621 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 622 # the ABIs that are still to be analyzed - perhaps this should simply
 623 # be deleted.  The commented out extract_returned_value_address method
 624 # is provided as a starting point for the 32-bit SPARC.  It, or
 625 # something like it, along with changes to both infcmd.c and stack.c
 626 # will be needed for that case to work.  NB: It is passed the callers
 627 # frame since it is only after the callee has returned that this
 628 # function is used.
 629
 630 #M:::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
 631 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
 632
 633 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
 634 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
 635 #
 636 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 637 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 638 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
 639 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
 640 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 641 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 642 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0
 643 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0
 644 #
 645 m::REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:regcache, gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
 646 #
 647 v::FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:::0
 648 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 649 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
 650 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
 651 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 652 # note, per UNWIND_PC's doco, that while the two have similar
 653 # interfaces they have very different underlying implementations.
 654 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
 655 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
 656 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
 657 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
 658 # frame-base.  Enable frame-base before frame-unwind.
 659 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 660 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 661 # frame-base.  Enable frame-base before frame-unwind.
 662 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 663 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 664 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
 665 #
 666 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
 667 # to frame_align and the requirement that methods such as
 668 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
 669 # alignment.
 670 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
 671 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 672 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 673 # stabs_argument_has_addr.
 674 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
 675 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
 676 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
 677 v:2:PARM_BOUNDARY:int:parm_boundary
 678 #
 679 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 680 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 681 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 682 m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0
 683 # On some machines there are bits in addresses which are not really
 684 # part of the address, but are used by the kernel, the hardware, etc.
 685 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 686 # we get a "real" address such as one would find in a symbol table.
 687 # This is used only for addresses of instructions, and even then I'm
 688 # not sure it's used in all contexts.  It exists to deal with there
 689 # being a few stray bits in the PC which would mislead us, not as some
 690 # sort of generic thing to handle alignment or segmentation (it's
 691 # possible it should be in TARGET_READ_PC instead).
 692 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 693 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 694 # ADDR_BITS_REMOVE.
 695 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 696 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 697 # the target needs software single step.  An ISA method to implement it.
 698 #
 699 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 700 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 701 #
 702 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 703 # single step.  If not, then implement single step using breakpoints.
 704 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
 705 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 706 # disassembler.  Perhaphs objdump can handle it?
 707 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
 708 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 709
 710
 711 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 712 # evaluates non-zero, this is the address where the debugger will place
 713 # a step-resume breakpoint to get us past the dynamic linker.
 714 m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
 715 # For SVR4 shared libraries, each call goes through a small piece of
 716 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 717 # to nonzero if we are currently stopped in one of these.
 718 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 719
 720 # Some systems also have trampoline code for returning from shared libs.
 721 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 722
 723 # Sigtramp is a routine that the kernel calls (which then calls the
 724 # signal handler).  On most machines it is a library routine that is
 725 # linked into the executable.
 726 #
 727 # This macro, given a program counter value and the name of the
 728 # function in which that PC resides (which can be null if the name is
 729 # not known), returns nonzero if the PC and name show that we are in
 730 # sigtramp.
 731 #
 732 # On most machines just see if the name is sigtramp (and if we have
 733 # no name, assume we are not in sigtramp).
 734 #
 735 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 736 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 737 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 738 # own local NAME lookup.
 739 #
 740 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 741 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 742 # does not.
 743 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 744 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 745 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 746 # A target might have problems with watchpoints as soon as the stack
 747 # frame of the current function has been destroyed.  This mostly happens
 748 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 749 # is defined to return a non-zero value if either the given addr is one
 750 # instruction after the stack destroying instruction up to the trailing
 751 # return instruction or if we can figure out that the stack frame has
 752 # already been invalidated regardless of the value of addr.  Targets
 753 # which don't suffer from that problem could just let this functionality
 754 # untouched.
 755 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 756 # Given a vector of command-line arguments, return a newly allocated
 757 # string which, when passed to the create_inferior function, will be
 758 # parsed (on Unix systems, by the shell) to yield the same vector.
 759 # This function should call error() if the argument vector is not
 760 # representable for this target or if this target does not support
 761 # command-line arguments.
 762 # ARGC is the number of elements in the vector.
 763 # ARGV is an array of strings, one per argument.
 764 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 765 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
 766 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
 767 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 768 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 769 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 770 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 771 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
 772 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
 773 # Is a register in a group
 774 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 775 # Fetch the pointer to the ith function argument.
 776 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 777
 778 # Return the appropriate register set for a core file section with
 779 # name SECT_NAME and size SECT_SIZE.
 780 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
 781 EOF
 782 }
 783
 784 #
 785 # The .log file
 786 #
 787 exec > new-gdbarch.log
 788 function_list | while do_read
 789 do
 790     cat <<EOF
 791 ${class} ${macro}(${actual})
 792   ${returntype} ${function} ($formal)${attrib}
 793 EOF
 794     for r in ${read}
 795     do
 796         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 797     done
 798     if class_is_predicate_p && fallback_default_p
 799     then
 800         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 801         kill $$
 802         exit 1
 803     fi
 804     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 805     then
 806         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 807         kill $$
 808         exit 1
 809     fi
 810     if class_is_multiarch_p
 811     then
 812         if class_is_predicate_p ; then :
 813         elif test "x${predefault}" = "x"
 814         then
 815             echo "Error: pure multi-arch function must have a predefault" 1>&2
 816             kill $$
 817             exit 1
 818         fi
 819     fi
 820     echo ""
 821 done
 822
 823 exec 1>&2
 824 compare_new gdbarch.log
 825
 826
 827 copyright ()
 828 {
 829 cat <<EOF
 830 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 831
 832 /* Dynamic architecture support for GDB, the GNU debugger.
 833
 834    Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
 835    Software Foundation, Inc.
 836
 837    This file is part of GDB.
 838
 839    This program is free software; you can redistribute it and/or modify
 840    it under the terms of the GNU General Public License as published by
 841    the Free Software Foundation; either version 2 of the License, or
 842    (at your option) any later version.
 843
 844    This program is distributed in the hope that it will be useful,
 845    but WITHOUT ANY WARRANTY; without even the implied warranty of
 846    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 847    GNU General Public License for more details.
 848
 849    You should have received a copy of the GNU General Public License
 850    along with this program; if not, write to the Free Software
 851    Foundation, Inc., 59 Temple Place - Suite 330,
 852    Boston, MA 02111-1307, USA.  */
 853
 854 /* This file was created with the aid of \`\`gdbarch.sh''.
 855
 856    The Bourne shell script \`\`gdbarch.sh'' creates the files
 857    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 858    against the existing \`\`gdbarch.[hc]''.  Any differences found
 859    being reported.
 860
 861    If editing this file, please also run gdbarch.sh and merge any
 862    changes into that script. Conversely, when making sweeping changes
 863    to this file, modifying gdbarch.sh and using its output may prove
 864    easier. */
 865
 866 EOF
 867 }
 868
 869 #
 870 # The .h file
 871 #
 872
 873 exec > new-gdbarch.h
 874 copyright
 875 cat <<EOF
 876 #ifndef GDBARCH_H
 877 #define GDBARCH_H
 878
 879 struct floatformat;
 880 struct ui_file;
 881 struct frame_info;
 882 struct value;
 883 struct objfile;
 884 struct minimal_symbol;
 885 struct regcache;
 886 struct reggroup;
 887 struct regset;
 888 struct disassemble_info;
 889 struct target_ops;
 890
 891 extern struct gdbarch *current_gdbarch;
 892
 893
 894 /* If any of the following are defined, the target wasn't correctly
 895    converted. */
 896
 897 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 898 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 899 #endif
 900 EOF
 901
 902 # function typedef's
 903 printf "\n"
 904 printf "\n"
 905 printf "/* The following are pre-initialized by GDBARCH. */\n"
 906 function_list | while do_read
 907 do
 908     if class_is_info_p
 909     then
 910         printf "\n"
 911         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 912         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 913         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 914         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 915         printf "#endif\n"
 916         printf "#if !defined (${macro})\n"
 917         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 918         printf "#endif\n"
 919     fi
 920 done
 921
 922 # function typedef's
 923 printf "\n"
 924 printf "\n"
 925 printf "/* The following are initialized by the target dependent code. */\n"
 926 function_list | while do_read
 927 do
 928     if [ -n "${comment}" ]
 929     then
 930         echo "${comment}" | sed \
 931             -e '2 s,#,/*,' \
 932             -e '3,$ s,#,  ,' \
 933             -e '$ s,$, */,'
 934     fi
 935     if class_is_multiarch_p
 936     then
 937         if class_is_predicate_p
 938         then
 939             printf "\n"
 940             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 941         fi
 942     else
 943         if class_is_predicate_p
 944         then
 945             printf "\n"
 946             printf "#if defined (${macro})\n"
 947             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 948             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 949             printf "#if !defined (${macro}_P)\n"
 950             printf "#define ${macro}_P() (1)\n"
 951             printf "#endif\n"
 952             printf "#endif\n"
 953             printf "\n"
 954             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 955             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 956             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 957             printf "#endif\n"
 958             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 959             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 960             printf "#endif\n"
 961         fi
 962     fi
 963     if class_is_variable_p
 964     then
 965         printf "\n"
 966         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 967         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 968         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 969         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 970         printf "#endif\n"
 971         printf "#if !defined (${macro})\n"
 972         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 973         printf "#endif\n"
 974     fi
 975     if class_is_function_p
 976     then
 977         printf "\n"
 978         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 979         then
 980             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 981         elif class_is_multiarch_p
 982         then
 983             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 984         else
 985             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 986         fi
 987         if [ "x${formal}" = "xvoid" ]
 988         then
 989           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 990         else
 991           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 992         fi
 993         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 994         if class_is_multiarch_p ; then :
 995         else
 996             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 997             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 998             printf "#endif\n"
 999             if [ "x${actual}" = "x" ]
1000             then
1001                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
1002             elif [ "x${actual}" = "x-" ]
1003             then
1004                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
1005             else
1006                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
1007             fi
1008             printf "#if !defined (${macro})\n"
1009             if [ "x${actual}" = "x" ]
1010             then
1011                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
1012             elif [ "x${actual}" = "x-" ]
1013             then
1014                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
1015             else
1016                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
1017             fi
1018             printf "#endif\n"
1019         fi
1020     fi
1021 done
1022
1023 # close it off
1024 cat <<EOF
1025
1026 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1027
1028
1029 /* Mechanism for co-ordinating the selection of a specific
1030    architecture.
1031
1032    GDB targets (*-tdep.c) can register an interest in a specific
1033    architecture.  Other GDB components can register a need to maintain
1034    per-architecture data.
1035
1036    The mechanisms below ensures that there is only a loose connection
1037    between the set-architecture command and the various GDB
1038    components.  Each component can independently register their need
1039    to maintain architecture specific data with gdbarch.
1040
1041    Pragmatics:
1042
1043    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1044    didn't scale.
1045
1046    The more traditional mega-struct containing architecture specific
1047    data for all the various GDB components was also considered.  Since
1048    GDB is built from a variable number of (fairly independent)
1049    components it was determined that the global aproach was not
1050    applicable. */
1051
1052
1053 /* Register a new architectural family with GDB.
1054
1055    Register support for the specified ARCHITECTURE with GDB.  When
1056    gdbarch determines that the specified architecture has been
1057    selected, the corresponding INIT function is called.
1058
1059    --
1060
1061    The INIT function takes two parameters: INFO which contains the
1062    information available to gdbarch about the (possibly new)
1063    architecture; ARCHES which is a list of the previously created
1064    \`\`struct gdbarch'' for this architecture.
1065
1066    The INFO parameter is, as far as possible, be pre-initialized with
1067    information obtained from INFO.ABFD or the previously selected
1068    architecture.
1069
1070    The ARCHES parameter is a linked list (sorted most recently used)
1071    of all the previously created architures for this architecture
1072    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1073    values from the previously selected architecture for this
1074    architecture family.  The global \`\`current_gdbarch'' shall not be
1075    used.
1076
1077    The INIT function shall return any of: NULL - indicating that it
1078    doesn't recognize the selected architecture; an existing \`\`struct
1079    gdbarch'' from the ARCHES list - indicating that the new
1080    architecture is just a synonym for an earlier architecture (see
1081    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1082    - that describes the selected architecture (see gdbarch_alloc()).
1083
1084    The DUMP_TDEP function shall print out all target specific values.
1085    Care should be taken to ensure that the function works in both the
1086    multi-arch and non- multi-arch cases. */
1087
1088 struct gdbarch_list
1089 {
1090   struct gdbarch *gdbarch;
1091   struct gdbarch_list *next;
1092 };
1093
1094 struct gdbarch_info
1095 {
1096   /* Use default: NULL (ZERO). */
1097   const struct bfd_arch_info *bfd_arch_info;
1098
1099   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1100   int byte_order;
1101
1102   /* Use default: NULL (ZERO). */
1103   bfd *abfd;
1104
1105   /* Use default: NULL (ZERO). */
1106   struct gdbarch_tdep_info *tdep_info;
1107
1108   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1109   enum gdb_osabi osabi;
1110 };
1111
1112 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1113 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1114
1115 /* DEPRECATED - use gdbarch_register() */
1116 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1117
1118 extern void gdbarch_register (enum bfd_architecture architecture,
1119                               gdbarch_init_ftype *,
1120                               gdbarch_dump_tdep_ftype *);
1121
1122
1123 /* Return a freshly allocated, NULL terminated, array of the valid
1124    architecture names.  Since architectures are registered during the
1125    _initialize phase this function only returns useful information
1126    once initialization has been completed. */
1127
1128 extern const char **gdbarch_printable_names (void);
1129
1130
1131 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1132    matches the information provided by INFO. */
1133
1134 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1135
1136
1137 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1138    basic initialization using values obtained from the INFO andTDEP
1139    parameters.  set_gdbarch_*() functions are called to complete the
1140    initialization of the object. */
1141
1142 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1143
1144
1145 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1146    It is assumed that the caller freeds the \`\`struct
1147    gdbarch_tdep''. */
1148
1149 extern void gdbarch_free (struct gdbarch *);
1150
1151
1152 /* Helper function.  Allocate memory from the \`\`struct gdbarch''
1153    obstack.  The memory is freed when the corresponding architecture
1154    is also freed.  */
1155
1156 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1157 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1158 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1159
1160
1161 /* Helper function. Force an update of the current architecture.
1162
1163    The actual architecture selected is determined by INFO, \`\`(gdb) set
1164    architecture'' et.al., the existing architecture and BFD's default
1165    architecture.  INFO should be initialized to zero and then selected
1166    fields should be updated.
1167
1168    Returns non-zero if the update succeeds */
1169
1170 extern int gdbarch_update_p (struct gdbarch_info info);
1171
1172
1173 /* Helper function.  Find an architecture matching info.
1174
1175    INFO should be initialized using gdbarch_info_init, relevant fields
1176    set, and then finished using gdbarch_info_fill.
1177
1178    Returns the corresponding architecture, or NULL if no matching
1179    architecture was found.  "current_gdbarch" is not updated.  */
1180
1181 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1182
1183
1184 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1185
1186    FIXME: kettenis/20031124: Of the functions that follow, only
1187    gdbarch_from_bfd is supposed to survive.  The others will
1188    dissappear since in the future GDB will (hopefully) be truly
1189    multi-arch.  However, for now we're still stuck with the concept of
1190    a single active architecture.  */
1191
1192 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1193
1194
1195 /* Register per-architecture data-pointer.
1196
1197    Reserve space for a per-architecture data-pointer.  An identifier
1198    for the reserved data-pointer is returned.  That identifer should
1199    be saved in a local static variable.
1200
1201    The per-architecture data-pointer is either initialized explicitly
1202    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1203    gdbarch_data()).
1204
1205    Memory for the per-architecture data shall be allocated using
1206    gdbarch_obstack_zalloc.  That memory will be deleted when the
1207    corresponding architecture object is deleted.
1208
1209    When a previously created architecture is re-selected, the
1210    per-architecture data-pointer for that previous architecture is
1211    restored.  INIT() is not re-called.
1212
1213    Multiple registrarants for any architecture are allowed (and
1214    strongly encouraged).  */
1215
1216 struct gdbarch_data;
1217
1218 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1219 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1220 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1221                               struct gdbarch_data *data,
1222                               void *pointer);
1223
1224 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1225
1226
1227
1228 /* Register per-architecture memory region.
1229
1230    Provide a memory-region swap mechanism.  Per-architecture memory
1231    region are created.  These memory regions are swapped whenever the
1232    architecture is changed.  For a new architecture, the memory region
1233    is initialized with zero (0) and the INIT function is called.
1234
1235    Memory regions are swapped / initialized in the order that they are
1236    registered.  NULL DATA and/or INIT values can be specified.
1237
1238    New code should use register_gdbarch_data(). */
1239
1240 typedef void (gdbarch_swap_ftype) (void);
1241 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1242 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1243
1244
1245
1246 /* Set the dynamic target-system-dependent parameters (architecture,
1247    byte-order, ...) using information found in the BFD */
1248
1249 extern void set_gdbarch_from_file (bfd *);
1250
1251
1252 /* Initialize the current architecture to the "first" one we find on
1253    our list.  */
1254
1255 extern void initialize_current_architecture (void);
1256
1257 /* gdbarch trace variable */
1258 extern int gdbarch_debug;
1259
1260 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1261
1262 #endif
1263 EOF
1264 exec 1>&2
1265 #../move-if-change new-gdbarch.h gdbarch.h
1266 compare_new gdbarch.h
1267
1268
1269 #
1270 # C file
1271 #
1272
1273 exec > new-gdbarch.c
1274 copyright
1275 cat <<EOF
1276
1277 #include "defs.h"
1278 #include "arch-utils.h"
1279
1280 #include "gdbcmd.h"
1281 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1282 #include "symcat.h"
1283
1284 #include "floatformat.h"
1285
1286 #include "gdb_assert.h"
1287 #include "gdb_string.h"
1288 #include "gdb-events.h"
1289 #include "reggroups.h"
1290 #include "osabi.h"
1291 #include "gdb_obstack.h"
1292
1293 /* Static function declarations */
1294
1295 static void alloc_gdbarch_data (struct gdbarch *);
1296
1297 /* Non-zero if we want to trace architecture code.  */
1298
1299 #ifndef GDBARCH_DEBUG
1300 #define GDBARCH_DEBUG 0
1301 #endif
1302 int gdbarch_debug = GDBARCH_DEBUG;
1303
1304 EOF
1305
1306 # gdbarch open the gdbarch object
1307 printf "\n"
1308 printf "/* Maintain the struct gdbarch object */\n"
1309 printf "\n"
1310 printf "struct gdbarch\n"
1311 printf "{\n"
1312 printf "  /* Has this architecture been fully initialized?  */\n"
1313 printf "  int initialized_p;\n"
1314 printf "\n"
1315 printf "  /* An obstack bound to the lifetime of the architecture.  */\n"
1316 printf "  struct obstack *obstack;\n"
1317 printf "\n"
1318 printf "  /* basic architectural information */\n"
1319 function_list | while do_read
1320 do
1321     if class_is_info_p
1322     then
1323         printf "  ${returntype} ${function};\n"
1324     fi
1325 done
1326 printf "\n"
1327 printf "  /* target specific vector. */\n"
1328 printf "  struct gdbarch_tdep *tdep;\n"
1329 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1330 printf "\n"
1331 printf "  /* per-architecture data-pointers */\n"
1332 printf "  unsigned nr_data;\n"
1333 printf "  void **data;\n"
1334 printf "\n"
1335 printf "  /* per-architecture swap-regions */\n"
1336 printf "  struct gdbarch_swap *swap;\n"
1337 printf "\n"
1338 cat <<EOF
1339   /* Multi-arch values.
1340
1341      When extending this structure you must:
1342
1343      Add the field below.
1344
1345      Declare set/get functions and define the corresponding
1346      macro in gdbarch.h.
1347
1348      gdbarch_alloc(): If zero/NULL is not a suitable default,
1349      initialize the new field.
1350
1351      verify_gdbarch(): Confirm that the target updated the field
1352      correctly.
1353
1354      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1355      field is dumped out
1356
1357      \`\`startup_gdbarch()'': Append an initial value to the static
1358      variable (base values on the host's c-type system).
1359
1360      get_gdbarch(): Implement the set/get functions (probably using
1361      the macro's as shortcuts).
1362
1363      */
1364
1365 EOF
1366 function_list | while do_read
1367 do
1368     if class_is_variable_p
1369     then
1370         printf "  ${returntype} ${function};\n"
1371     elif class_is_function_p
1372     then
1373         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1374     fi
1375 done
1376 printf "};\n"
1377
1378 # A pre-initialized vector
1379 printf "\n"
1380 printf "\n"
1381 cat <<EOF
1382 /* The default architecture uses host values (for want of a better
1383    choice). */
1384 EOF
1385 printf "\n"
1386 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1387 printf "\n"
1388 printf "struct gdbarch startup_gdbarch =\n"
1389 printf "{\n"
1390 printf "  1, /* Always initialized.  */\n"
1391 printf "  NULL, /* The obstack.  */\n"
1392 printf "  /* basic architecture information */\n"
1393 function_list | while do_read
1394 do
1395     if class_is_info_p
1396     then
1397         printf "  ${staticdefault},  /* ${function} */\n"
1398     fi
1399 done
1400 cat <<EOF
1401   /* target specific vector and its dump routine */
1402   NULL, NULL,
1403   /*per-architecture data-pointers and swap regions */
1404   0, NULL, NULL,
1405   /* Multi-arch values */
1406 EOF
1407 function_list | while do_read
1408 do
1409     if class_is_function_p || class_is_variable_p
1410     then
1411         printf "  ${staticdefault},  /* ${function} */\n"
1412     fi
1413 done
1414 cat <<EOF
1415   /* startup_gdbarch() */
1416 };
1417
1418 struct gdbarch *current_gdbarch = &startup_gdbarch;
1419 EOF
1420
1421 # Create a new gdbarch struct
1422 cat <<EOF
1423
1424 /* Create a new \`\`struct gdbarch'' based on information provided by
1425    \`\`struct gdbarch_info''. */
1426 EOF
1427 printf "\n"
1428 cat <<EOF
1429 struct gdbarch *
1430 gdbarch_alloc (const struct gdbarch_info *info,
1431                struct gdbarch_tdep *tdep)
1432 {
1433   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1434      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1435      the current local architecture and not the previous global
1436      architecture.  This ensures that the new architectures initial
1437      values are not influenced by the previous architecture.  Once
1438      everything is parameterised with gdbarch, this will go away.  */
1439   struct gdbarch *current_gdbarch;
1440
1441   /* Create an obstack for allocating all the per-architecture memory,
1442      then use that to allocate the architecture vector.  */
1443   struct obstack *obstack = XMALLOC (struct obstack);
1444   obstack_init (obstack);
1445   current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1446   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1447   current_gdbarch->obstack = obstack;
1448
1449   alloc_gdbarch_data (current_gdbarch);
1450
1451   current_gdbarch->tdep = tdep;
1452 EOF
1453 printf "\n"
1454 function_list | while do_read
1455 do
1456     if class_is_info_p
1457     then
1458         printf "  current_gdbarch->${function} = info->${function};\n"
1459     fi
1460 done
1461 printf "\n"
1462 printf "  /* Force the explicit initialization of these. */\n"
1463 function_list | while do_read
1464 do
1465     if class_is_function_p || class_is_variable_p
1466     then
1467         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1468         then
1469           printf "  current_gdbarch->${function} = ${predefault};\n"
1470         fi
1471     fi
1472 done
1473 cat <<EOF
1474   /* gdbarch_alloc() */
1475
1476   return current_gdbarch;
1477 }
1478 EOF
1479
1480 # Free a gdbarch struct.
1481 printf "\n"
1482 printf "\n"
1483 cat <<EOF
1484 /* Allocate extra space using the per-architecture obstack.  */
1485
1486 void *
1487 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1488 {
1489   void *data = obstack_alloc (arch->obstack, size);
1490   memset (data, 0, size);
1491   return data;
1492 }
1493
1494
1495 /* Free a gdbarch struct.  This should never happen in normal
1496    operation --- once you've created a gdbarch, you keep it around.
1497    However, if an architecture's init function encounters an error
1498    building the structure, it may need to clean up a partially
1499    constructed gdbarch.  */
1500
1501 void
1502 gdbarch_free (struct gdbarch *arch)
1503 {
1504   struct obstack *obstack;
1505   gdb_assert (arch != NULL);
1506   gdb_assert (!arch->initialized_p);
1507   obstack = arch->obstack;
1508   obstack_free (obstack, 0); /* Includes the ARCH.  */
1509   xfree (obstack);
1510 }
1511 EOF
1512
1513 # verify a new architecture
1514 cat <<EOF
1515
1516
1517 /* Ensure that all values in a GDBARCH are reasonable.  */
1518
1519 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1520    just happens to match the global variable \`\`current_gdbarch''.  That
1521    way macros refering to that variable get the local and not the global
1522    version - ulgh.  Once everything is parameterised with gdbarch, this
1523    will go away. */
1524
1525 static void
1526 verify_gdbarch (struct gdbarch *current_gdbarch)
1527 {
1528   struct ui_file *log;
1529   struct cleanup *cleanups;
1530   long dummy;
1531   char *buf;
1532   log = mem_fileopen ();
1533   cleanups = make_cleanup_ui_file_delete (log);
1534   /* fundamental */
1535   if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1536     fprintf_unfiltered (log, "\n\tbyte-order");
1537   if (current_gdbarch->bfd_arch_info == NULL)
1538     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1539   /* Check those that need to be defined for the given multi-arch level. */
1540 EOF
1541 function_list | while do_read
1542 do
1543     if class_is_function_p || class_is_variable_p
1544     then
1545         if [ "x${invalid_p}" = "x0" ]
1546         then
1547             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1548         elif class_is_predicate_p
1549         then
1550             printf "  /* Skip verify of ${function}, has predicate */\n"
1551         # FIXME: See do_read for potential simplification
1552         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1553         then
1554             printf "  if (${invalid_p})\n"
1555             printf "    current_gdbarch->${function} = ${postdefault};\n"
1556         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1557         then
1558             printf "  if (current_gdbarch->${function} == ${predefault})\n"
1559             printf "    current_gdbarch->${function} = ${postdefault};\n"
1560         elif [ -n "${postdefault}" ]
1561         then
1562             printf "  if (current_gdbarch->${function} == 0)\n"
1563             printf "    current_gdbarch->${function} = ${postdefault};\n"
1564         elif [ -n "${invalid_p}" ]
1565         then
1566             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1567             printf "      && (${invalid_p}))\n"
1568             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1569         elif [ -n "${predefault}" ]
1570         then
1571             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1572             printf "      && (current_gdbarch->${function} == ${predefault}))\n"
1573             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1574         fi
1575     fi
1576 done
1577 cat <<EOF
1578   buf = ui_file_xstrdup (log, &dummy);
1579   make_cleanup (xfree, buf);
1580   if (strlen (buf) > 0)
1581     internal_error (__FILE__, __LINE__,
1582                     "verify_gdbarch: the following are invalid ...%s",
1583                     buf);
1584   do_cleanups (cleanups);
1585 }
1586 EOF
1587
1588 # dump the structure
1589 printf "\n"
1590 printf "\n"
1591 cat <<EOF
1592 /* Print out the details of the current architecture. */
1593
1594 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1595    just happens to match the global variable \`\`current_gdbarch''.  That
1596    way macros refering to that variable get the local and not the global
1597    version - ulgh.  Once everything is parameterised with gdbarch, this
1598    will go away. */
1599
1600 void
1601 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1602 {
1603   fprintf_unfiltered (file,
1604                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1605                       GDB_MULTI_ARCH);
1606 EOF
1607 function_list | sort -t: -k 3 | while do_read
1608 do
1609     # First the predicate
1610     if class_is_predicate_p
1611     then
1612         if class_is_multiarch_p
1613         then
1614             printf "  fprintf_unfiltered (file,\n"
1615             printf "                      \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1616             printf "                      gdbarch_${function}_p (current_gdbarch));\n"
1617         else
1618             printf "#ifdef ${macro}_P\n"
1619             printf "  fprintf_unfiltered (file,\n"
1620             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1621             printf "                      \"${macro}_P()\",\n"
1622             printf "                      XSTRING (${macro}_P ()));\n"
1623             printf "  fprintf_unfiltered (file,\n"
1624             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1625             printf "                      ${macro}_P ());\n"
1626             printf "#endif\n"
1627         fi
1628     fi
1629     # multiarch functions don't have macros.
1630     if class_is_multiarch_p
1631     then
1632         printf "  fprintf_unfiltered (file,\n"
1633         printf "                      \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1634         printf "                      (long) current_gdbarch->${function});\n"
1635         continue
1636     fi
1637     # Print the macro definition.
1638     printf "#ifdef ${macro}\n"
1639     if class_is_function_p
1640     then
1641         printf "  fprintf_unfiltered (file,\n"
1642         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1643         printf "                      \"${macro}(${actual})\",\n"
1644         printf "                      XSTRING (${macro} (${actual})));\n"
1645     else
1646         printf "  fprintf_unfiltered (file,\n"
1647         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1648         printf "                      XSTRING (${macro}));\n"
1649     fi
1650     if [ "x${print_p}" = "x()" ]
1651     then
1652         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1653     elif [ "x${print_p}" = "x0" ]
1654     then
1655         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1656     elif [ -n "${print_p}" ]
1657     then
1658         printf "  if (${print_p})\n"
1659         printf "    fprintf_unfiltered (file,\n"
1660         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1661         printf "                        ${print});\n"
1662     elif class_is_function_p
1663     then
1664         printf "  fprintf_unfiltered (file,\n"
1665         printf "                      \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1666         printf "                      (long) current_gdbarch->${function}\n"
1667         printf "                      /*${macro} ()*/);\n"
1668     else
1669         printf "  fprintf_unfiltered (file,\n"
1670         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1671         printf "                      ${print});\n"
1672     fi
1673     printf "#endif\n"
1674 done
1675 cat <<EOF
1676   if (current_gdbarch->dump_tdep != NULL)
1677     current_gdbarch->dump_tdep (current_gdbarch, file);
1678 }
1679 EOF
1680
1681
1682 # GET/SET
1683 printf "\n"
1684 cat <<EOF
1685 struct gdbarch_tdep *
1686 gdbarch_tdep (struct gdbarch *gdbarch)
1687 {
1688   if (gdbarch_debug >= 2)
1689     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1690   return gdbarch->tdep;
1691 }
1692 EOF
1693 printf "\n"
1694 function_list | while do_read
1695 do
1696     if class_is_predicate_p
1697     then
1698         printf "\n"
1699         printf "int\n"
1700         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1701         printf "{\n"
1702         printf "  gdb_assert (gdbarch != NULL);\n"
1703         printf "  return ${predicate};\n"
1704         printf "}\n"
1705     fi
1706     if class_is_function_p
1707     then
1708         printf "\n"
1709         printf "${returntype}\n"
1710         if [ "x${formal}" = "xvoid" ]
1711         then
1712           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1713         else
1714           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1715         fi
1716         printf "{\n"
1717         printf "  gdb_assert (gdbarch != NULL);\n"
1718         printf "  gdb_assert (gdbarch->${function} != NULL);\n"
1719         if class_is_predicate_p && test -n "${predefault}"
1720         then
1721             # Allow a call to a function with a predicate.
1722             printf "  /* Do not check predicate: ${predicate}, allow call.  */\n"
1723         fi
1724         printf "  if (gdbarch_debug >= 2)\n"
1725         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1726         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1727         then
1728             if class_is_multiarch_p
1729             then
1730                 params="gdbarch"
1731             else
1732                 params=""
1733             fi
1734         else
1735             if class_is_multiarch_p
1736             then
1737                 params="gdbarch, ${actual}"
1738             else
1739                 params="${actual}"
1740             fi
1741         fi
1742         if [ "x${returntype}" = "xvoid" ]
1743         then
1744           printf "  gdbarch->${function} (${params});\n"
1745         else
1746           printf "  return gdbarch->${function} (${params});\n"
1747         fi
1748         printf "}\n"
1749         printf "\n"
1750         printf "void\n"
1751         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1752         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1753         printf "{\n"
1754         printf "  gdbarch->${function} = ${function};\n"
1755         printf "}\n"
1756     elif class_is_variable_p
1757     then
1758         printf "\n"
1759         printf "${returntype}\n"
1760         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1761         printf "{\n"
1762         printf "  gdb_assert (gdbarch != NULL);\n"
1763         if [ "x${invalid_p}" = "x0" ]
1764         then
1765             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1766         elif [ -n "${invalid_p}" ]
1767         then
1768             printf "  /* Check variable is valid.  */\n"
1769             printf "  gdb_assert (!(${invalid_p}));\n"
1770         elif [ -n "${predefault}" ]
1771         then
1772             printf "  /* Check variable changed from pre-default.  */\n"
1773             printf "  gdb_assert (gdbarch->${function} != ${predefault});\n"
1774         fi
1775         printf "  if (gdbarch_debug >= 2)\n"
1776         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1777         printf "  return gdbarch->${function};\n"
1778         printf "}\n"
1779         printf "\n"
1780         printf "void\n"
1781         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1782         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1783         printf "{\n"
1784         printf "  gdbarch->${function} = ${function};\n"
1785         printf "}\n"
1786     elif class_is_info_p
1787     then
1788         printf "\n"
1789         printf "${returntype}\n"
1790         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1791         printf "{\n"
1792         printf "  gdb_assert (gdbarch != NULL);\n"
1793         printf "  if (gdbarch_debug >= 2)\n"
1794         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1795         printf "  return gdbarch->${function};\n"
1796         printf "}\n"
1797     fi
1798 done
1799
1800 # All the trailing guff
1801 cat <<EOF
1802
1803
1804 /* Keep a registry of per-architecture data-pointers required by GDB
1805    modules. */
1806
1807 struct gdbarch_data
1808 {
1809   unsigned index;
1810   int init_p;
1811   gdbarch_data_init_ftype *init;
1812 };
1813
1814 struct gdbarch_data_registration
1815 {
1816   struct gdbarch_data *data;
1817   struct gdbarch_data_registration *next;
1818 };
1819
1820 struct gdbarch_data_registry
1821 {
1822   unsigned nr;
1823   struct gdbarch_data_registration *registrations;
1824 };
1825
1826 struct gdbarch_data_registry gdbarch_data_registry =
1827 {
1828   0, NULL,
1829 };
1830
1831 struct gdbarch_data *
1832 register_gdbarch_data (gdbarch_data_init_ftype *init)
1833 {
1834   struct gdbarch_data_registration **curr;
1835   /* Append the new registraration.  */
1836   for (curr = &gdbarch_data_registry.registrations;
1837        (*curr) != NULL;
1838        curr = &(*curr)->next);
1839   (*curr) = XMALLOC (struct gdbarch_data_registration);
1840   (*curr)->next = NULL;
1841   (*curr)->data = XMALLOC (struct gdbarch_data);
1842   (*curr)->data->index = gdbarch_data_registry.nr++;
1843   (*curr)->data->init = init;
1844   (*curr)->data->init_p = 1;
1845   return (*curr)->data;
1846 }
1847
1848
1849 /* Create/delete the gdbarch data vector. */
1850
1851 static void
1852 alloc_gdbarch_data (struct gdbarch *gdbarch)
1853 {
1854   gdb_assert (gdbarch->data == NULL);
1855   gdbarch->nr_data = gdbarch_data_registry.nr;
1856   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1857 }
1858
1859 /* Initialize the current value of the specified per-architecture
1860    data-pointer. */
1861
1862 void
1863 set_gdbarch_data (struct gdbarch *gdbarch,
1864                   struct gdbarch_data *data,
1865                   void *pointer)
1866 {
1867   gdb_assert (data->index < gdbarch->nr_data);
1868   gdb_assert (gdbarch->data[data->index] == NULL);
1869   gdbarch->data[data->index] = pointer;
1870 }
1871
1872 /* Return the current value of the specified per-architecture
1873    data-pointer. */
1874
1875 void *
1876 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1877 {
1878   gdb_assert (data->index < gdbarch->nr_data);
1879   /* The data-pointer isn't initialized, call init() to get a value but
1880      only if the architecture initializaiton has completed.  Otherwise
1881      punt - hope that the caller knows what they are doing.  */
1882   if (gdbarch->data[data->index] == NULL
1883       && gdbarch->initialized_p)
1884     {
1885       /* Be careful to detect an initialization cycle.  */
1886       gdb_assert (data->init_p);
1887       data->init_p = 0;
1888       gdb_assert (data->init != NULL);
1889       gdbarch->data[data->index] = data->init (gdbarch);
1890       data->init_p = 1;
1891       gdb_assert (gdbarch->data[data->index] != NULL);
1892     }
1893   return gdbarch->data[data->index];
1894 }
1895
1896
1897
1898 /* Keep a registry of swapped data required by GDB modules. */
1899
1900 struct gdbarch_swap
1901 {
1902   void *swap;
1903   struct gdbarch_swap_registration *source;
1904   struct gdbarch_swap *next;
1905 };
1906
1907 struct gdbarch_swap_registration
1908 {
1909   void *data;
1910   unsigned long sizeof_data;
1911   gdbarch_swap_ftype *init;
1912   struct gdbarch_swap_registration *next;
1913 };
1914
1915 struct gdbarch_swap_registry
1916 {
1917   int nr;
1918   struct gdbarch_swap_registration *registrations;
1919 };
1920
1921 struct gdbarch_swap_registry gdbarch_swap_registry =
1922 {
1923   0, NULL,
1924 };
1925
1926 void
1927 register_gdbarch_swap (void *data,
1928                        unsigned long sizeof_data,
1929                        gdbarch_swap_ftype *init)
1930 {
1931   struct gdbarch_swap_registration **rego;
1932   for (rego = &gdbarch_swap_registry.registrations;
1933        (*rego) != NULL;
1934        rego = &(*rego)->next);
1935   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1936   (*rego)->next = NULL;
1937   (*rego)->init = init;
1938   (*rego)->data = data;
1939   (*rego)->sizeof_data = sizeof_data;
1940 }
1941
1942 static void
1943 current_gdbarch_swap_init_hack (void)
1944 {
1945   struct gdbarch_swap_registration *rego;
1946   struct gdbarch_swap **curr = &current_gdbarch->swap;
1947   for (rego = gdbarch_swap_registry.registrations;
1948        rego != NULL;
1949        rego = rego->next)
1950     {
1951       if (rego->data != NULL)
1952         {
1953           (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1954                                             struct gdbarch_swap);
1955           (*curr)->source = rego;
1956           (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1957                                                   rego->sizeof_data);
1958           (*curr)->next = NULL;
1959           curr = &(*curr)->next;
1960         }
1961       if (rego->init != NULL)
1962         rego->init ();
1963     }
1964 }
1965
1966 static struct gdbarch *
1967 current_gdbarch_swap_out_hack (void)
1968 {
1969   struct gdbarch *old_gdbarch = current_gdbarch;
1970   struct gdbarch_swap *curr;
1971
1972   gdb_assert (old_gdbarch != NULL);
1973   for (curr = old_gdbarch->swap;
1974        curr != NULL;
1975        curr = curr->next)
1976     {
1977       memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1978       memset (curr->source->data, 0, curr->source->sizeof_data);
1979     }
1980   current_gdbarch = NULL;
1981   return old_gdbarch;
1982 }
1983
1984 static void
1985 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1986 {
1987   struct gdbarch_swap *curr;
1988
1989   gdb_assert (current_gdbarch == NULL);
1990   for (curr = new_gdbarch->swap;
1991        curr != NULL;
1992        curr = curr->next)
1993     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1994   current_gdbarch = new_gdbarch;
1995 }
1996
1997
1998 /* Keep a registry of the architectures known by GDB. */
1999
2000 struct gdbarch_registration
2001 {
2002   enum bfd_architecture bfd_architecture;
2003   gdbarch_init_ftype *init;
2004   gdbarch_dump_tdep_ftype *dump_tdep;
2005   struct gdbarch_list *arches;
2006   struct gdbarch_registration *next;
2007 };
2008
2009 static struct gdbarch_registration *gdbarch_registry = NULL;
2010
2011 static void
2012 append_name (const char ***buf, int *nr, const char *name)
2013 {
2014   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2015   (*buf)[*nr] = name;
2016   *nr += 1;
2017 }
2018
2019 const char **
2020 gdbarch_printable_names (void)
2021 {
2022   /* Accumulate a list of names based on the registed list of
2023      architectures. */
2024   enum bfd_architecture a;
2025   int nr_arches = 0;
2026   const char **arches = NULL;
2027   struct gdbarch_registration *rego;
2028   for (rego = gdbarch_registry;
2029        rego != NULL;
2030        rego = rego->next)
2031     {
2032       const struct bfd_arch_info *ap;
2033       ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2034       if (ap == NULL)
2035         internal_error (__FILE__, __LINE__,
2036                         "gdbarch_architecture_names: multi-arch unknown");
2037       do
2038         {
2039           append_name (&arches, &nr_arches, ap->printable_name);
2040           ap = ap->next;
2041         }
2042       while (ap != NULL);
2043     }
2044   append_name (&arches, &nr_arches, NULL);
2045   return arches;
2046 }
2047
2048
2049 void
2050 gdbarch_register (enum bfd_architecture bfd_architecture,
2051                   gdbarch_init_ftype *init,
2052                   gdbarch_dump_tdep_ftype *dump_tdep)
2053 {
2054   struct gdbarch_registration **curr;
2055   const struct bfd_arch_info *bfd_arch_info;
2056   /* Check that BFD recognizes this architecture */
2057   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2058   if (bfd_arch_info == NULL)
2059     {
2060       internal_error (__FILE__, __LINE__,
2061                       "gdbarch: Attempt to register unknown architecture (%d)",
2062                       bfd_architecture);
2063     }
2064   /* Check that we haven't seen this architecture before */
2065   for (curr = &gdbarch_registry;
2066        (*curr) != NULL;
2067        curr = &(*curr)->next)
2068     {
2069       if (bfd_architecture == (*curr)->bfd_architecture)
2070         internal_error (__FILE__, __LINE__,
2071                         "gdbarch: Duplicate registraration of architecture (%s)",
2072                         bfd_arch_info->printable_name);
2073     }
2074   /* log it */
2075   if (gdbarch_debug)
2076     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2077                         bfd_arch_info->printable_name,
2078                         (long) init);
2079   /* Append it */
2080   (*curr) = XMALLOC (struct gdbarch_registration);
2081   (*curr)->bfd_architecture = bfd_architecture;
2082   (*curr)->init = init;
2083   (*curr)->dump_tdep = dump_tdep;
2084   (*curr)->arches = NULL;
2085   (*curr)->next = NULL;
2086 }
2087
2088 void
2089 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2090                        gdbarch_init_ftype *init)
2091 {
2092   gdbarch_register (bfd_architecture, init, NULL);
2093 }
2094
2095
2096 /* Look for an architecture using gdbarch_info.  Base search on only
2097    BFD_ARCH_INFO and BYTE_ORDER. */
2098
2099 struct gdbarch_list *
2100 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2101                              const struct gdbarch_info *info)
2102 {
2103   for (; arches != NULL; arches = arches->next)
2104     {
2105       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2106         continue;
2107       if (info->byte_order != arches->gdbarch->byte_order)
2108         continue;
2109       if (info->osabi != arches->gdbarch->osabi)
2110         continue;
2111       return arches;
2112     }
2113   return NULL;
2114 }
2115
2116
2117 /* Find an architecture that matches the specified INFO.  Create a new
2118    architecture if needed.  Return that new architecture.  Assumes
2119    that there is no current architecture.  */
2120
2121 static struct gdbarch *
2122 find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
2123 {
2124   struct gdbarch *new_gdbarch;
2125   struct gdbarch_registration *rego;
2126
2127   /* The existing architecture has been swapped out - all this code
2128      works from a clean slate.  */
2129   gdb_assert (current_gdbarch == NULL);
2130
2131   /* Fill in missing parts of the INFO struct using a number of
2132      sources: "set ..."; INFOabfd supplied; and the existing
2133      architecture.  */
2134   gdbarch_info_fill (old_gdbarch, &info);
2135
2136   /* Must have found some sort of architecture. */
2137   gdb_assert (info.bfd_arch_info != NULL);
2138
2139   if (gdbarch_debug)
2140     {
2141       fprintf_unfiltered (gdb_stdlog,
2142                           "find_arch_by_info: info.bfd_arch_info %s\n",
2143                           (info.bfd_arch_info != NULL
2144                            ? info.bfd_arch_info->printable_name
2145                            : "(null)"));
2146       fprintf_unfiltered (gdb_stdlog,
2147                           "find_arch_by_info: info.byte_order %d (%s)\n",
2148                           info.byte_order,
2149                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2150                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2151                            : "default"));
2152       fprintf_unfiltered (gdb_stdlog,
2153                           "find_arch_by_info: info.osabi %d (%s)\n",
2154                           info.osabi, gdbarch_osabi_name (info.osabi));
2155       fprintf_unfiltered (gdb_stdlog,
2156                           "find_arch_by_info: info.abfd 0x%lx\n",
2157                           (long) info.abfd);
2158       fprintf_unfiltered (gdb_stdlog,
2159                           "find_arch_by_info: info.tdep_info 0x%lx\n",
2160                           (long) info.tdep_info);
2161     }
2162
2163   /* Find the tdep code that knows about this architecture.  */
2164   for (rego = gdbarch_registry;
2165        rego != NULL;
2166        rego = rego->next)
2167     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2168       break;
2169   if (rego == NULL)
2170     {
2171       if (gdbarch_debug)
2172         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2173                             "No matching architecture\n");
2174       return 0;
2175     }
2176
2177   /* Ask the tdep code for an architecture that matches "info".  */
2178   new_gdbarch = rego->init (info, rego->arches);
2179
2180   /* Did the tdep code like it?  No.  Reject the change and revert to
2181      the old architecture.  */
2182   if (new_gdbarch == NULL)
2183     {
2184       if (gdbarch_debug)
2185         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2186                             "Target rejected architecture\n");
2187       return NULL;
2188     }
2189
2190   /* Is this a pre-existing architecture (as determined by already
2191      being initialized)?  Move it to the front of the architecture
2192      list (keeping the list sorted Most Recently Used).  */
2193   if (new_gdbarch->initialized_p)
2194     {
2195       struct gdbarch_list **list;
2196       struct gdbarch_list *this;
2197       if (gdbarch_debug)
2198         fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2199                             "Previous architecture 0x%08lx (%s) selected\n",
2200                             (long) new_gdbarch,
2201                             new_gdbarch->bfd_arch_info->printable_name);
2202       /* Find the existing arch in the list.  */
2203       for (list = &rego->arches;
2204            (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2205            list = &(*list)->next);
2206       /* It had better be in the list of architectures.  */
2207       gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2208       /* Unlink THIS.  */
2209       this = (*list);
2210       (*list) = this->next;
2211       /* Insert THIS at the front.  */
2212       this->next = rego->arches;
2213       rego->arches = this;
2214       /* Return it.  */
2215       return new_gdbarch;
2216     }
2217
2218   /* It's a new architecture.  */
2219   if (gdbarch_debug)
2220     fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2221                         "New architecture 0x%08lx (%s) selected\n",
2222                         (long) new_gdbarch,
2223                         new_gdbarch->bfd_arch_info->printable_name);
2224
2225   /* Insert the new architecture into the front of the architecture
2226      list (keep the list sorted Most Recently Used).  */
2227   {
2228     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2229     this->next = rego->arches;
2230     this->gdbarch = new_gdbarch;
2231     rego->arches = this;
2232   }
2233
2234   /* Check that the newly installed architecture is valid.  Plug in
2235      any post init values.  */
2236   new_gdbarch->dump_tdep = rego->dump_tdep;
2237   verify_gdbarch (new_gdbarch);
2238   new_gdbarch->initialized_p = 1;
2239
2240   /* Initialize any per-architecture swap areas.  This phase requires
2241      a valid global CURRENT_GDBARCH.  Set it momentarially, and then
2242      swap the entire architecture out.  */
2243   current_gdbarch = new_gdbarch;
2244   current_gdbarch_swap_init_hack ();
2245   current_gdbarch_swap_out_hack ();
2246
2247   if (gdbarch_debug)
2248     gdbarch_dump (new_gdbarch, gdb_stdlog);
2249
2250   return new_gdbarch;
2251 }
2252
2253 struct gdbarch *
2254 gdbarch_find_by_info (struct gdbarch_info info)
2255 {
2256   /* Save the previously selected architecture, setting the global to
2257      NULL.  This stops things like gdbarch->init() trying to use the
2258      previous architecture's configuration.  The previous architecture
2259      may not even be of the same architecture family.  The most recent
2260      architecture of the same family is found at the head of the
2261      rego->arches list.  */
2262   struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2263
2264   /* Find the specified architecture.  */
2265   struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
2266
2267   /* Restore the existing architecture.  */
2268   gdb_assert (current_gdbarch == NULL);
2269   current_gdbarch_swap_in_hack (old_gdbarch);
2270
2271   return new_gdbarch;
2272 }
2273
2274 /* Make the specified architecture current, swapping the existing one
2275    out.  */
2276
2277 void
2278 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2279 {
2280   gdb_assert (new_gdbarch != NULL);
2281   gdb_assert (current_gdbarch != NULL);
2282   gdb_assert (new_gdbarch->initialized_p);
2283   current_gdbarch_swap_out_hack ();
2284   current_gdbarch_swap_in_hack (new_gdbarch);
2285   architecture_changed_event ();
2286 }
2287
2288 extern void _initialize_gdbarch (void);
2289
2290 void
2291 _initialize_gdbarch (void)
2292 {
2293   struct cmd_list_element *c;
2294
2295   add_show_from_set (add_set_cmd ("arch",
2296                                   class_maintenance,
2297                                   var_zinteger,
2298                                   (char *)&gdbarch_debug,
2299                                   "Set architecture debugging.\\n\\
2300 When non-zero, architecture debugging is enabled.", &setdebuglist),
2301                      &showdebuglist);
2302   c = add_set_cmd ("archdebug",
2303                    class_maintenance,
2304                    var_zinteger,
2305                    (char *)&gdbarch_debug,
2306                    "Set architecture debugging.\\n\\
2307 When non-zero, architecture debugging is enabled.", &setlist);
2308
2309   deprecate_cmd (c, "set debug arch");
2310   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2311 }
2312 EOF
2313
2314 # close things off
2315 exec 1>&2
2316 #../move-if-change new-gdbarch.c gdbarch.c
2317 compare_new gdbarch.c