gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   5 #
   6 # This file is part of GDB.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21
  22 # Make certain that the script is running in an internationalized
  23 # environment.
  24 LANG=c ; export LANG
  25 LC_ALL=c ; export LC_ALL
  26
  27
  28 compare_new ()
  29 {
  30     file=$1
  31     if test ! -r ${file}
  32     then
  33         echo "${file} missing? cp new-${file} ${file}" 1>&2
  34     elif diff -u ${file} new-${file}
  35     then
  36         echo "${file} unchanged" 1>&2
  37     else
  38         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  39     fi
  40 }
  41
  42
  43 # Format of the input table
  44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  45
  46 do_read ()
  47 {
  48     comment=""
  49     class=""
  50     while read line
  51     do
  52         if test "${line}" = ""
  53         then
  54             continue
  55         elif test "${line}" = "#" -a "${comment}" = ""
  56         then
  57             continue
  58         elif expr "${line}" : "#" > /dev/null
  59         then
  60             comment="${comment}
  61 ${line}"
  62         else
  63
  64             # The semantics of IFS varies between different SH's.  Some
  65             # treat ``::' as three fields while some treat it as just too.
  66             # Work around this by eliminating ``::'' ....
  67             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  68
  69             OFS="${IFS}" ; IFS="[:]"
  70             eval read ${read} <<EOF
  71 ${line}
  72 EOF
  73             IFS="${OFS}"
  74
  75             # .... and then going back through each field and strip out those
  76             # that ended up with just that space character.
  77             for r in ${read}
  78             do
  79                 if eval test \"\${${r}}\" = \"\ \"
  80                 then
  81                     eval ${r}=""
  82                 fi
  83             done
  84
  85             case "${level}" in
  86                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  87                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  88                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  89                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  90             esac
  91
  92             case "${class}" in
  93                 m ) staticdefault="${predefault}" ;;
  94                 M ) staticdefault="0" ;;
  95                 * ) test "${staticdefault}" || staticdefault=0 ;;
  96             esac
  97             # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
  98             # multi-arch defaults.
  99             # test "${predefault}" || predefault=0
 100
 101             # come up with a format, use a few guesses for variables
 102             case ":${class}:${fmt}:${print}:" in
 103                 :[vV]::: )
 104                     if [ "${returntype}" = int ]
 105                     then
 106                         fmt="%d"
 107                         print="${macro}"
 108                     elif [ "${returntype}" = long ]
 109                     then
 110                         fmt="%ld"
 111                         print="${macro}"
 112                     fi
 113                     ;;
 114             esac
 115             test "${fmt}" || fmt="%ld"
 116             test "${print}" || print="(long) ${macro}"
 117
 118             case "${class}" in
 119             F | V | M )
 120                 case "${invalid_p}" in
 121                 "" )
 122                     if test -n "${predefault}" -a "${predefault}" != "0"
 123                     then
 124                         #invalid_p="gdbarch->${function} == ${predefault}"
 125                         predicate="gdbarch->${function} != ${predefault}"
 126                     else
 127                         # filled in later
 128                         predicate=""
 129                     fi
 130                     ;;
 131                 * )
 132                     echo "Predicate function ${function} with invalid_p." 1>&2
 133                     kill $$
 134                     exit 1
 135                     ;;
 136                 esac
 137             esac
 138
 139             # PREDEFAULT is a valid fallback definition of MEMBER when
 140             # multi-arch is not enabled.  This ensures that the
 141             # default value, when multi-arch is the same as the
 142             # default value when not multi-arch.  POSTDEFAULT is
 143             # always a valid definition of MEMBER as this again
 144             # ensures consistency.
 145
 146             if [ -n "${postdefault}" ]
 147             then
 148                 fallbackdefault="${postdefault}"
 149             elif [ -n "${predefault}" ]
 150             then
 151                 fallbackdefault="${predefault}"
 152             else
 153                 fallbackdefault="0"
 154             fi
 155
 156             #NOT YET: See gdbarch.log for basic verification of
 157             # database
 158
 159             break
 160         fi
 161     done
 162     if [ -n "${class}" ]
 163     then
 164         true
 165     else
 166         false
 167     fi
 168 }
 169
 170
 171 fallback_default_p ()
 172 {
 173     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 174         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 175 }
 176
 177 class_is_variable_p ()
 178 {
 179     case "${class}" in
 180         *v* | *V* ) true ;;
 181         * ) false ;;
 182     esac
 183 }
 184
 185 class_is_function_p ()
 186 {
 187     case "${class}" in
 188         *f* | *F* | *m* | *M* ) true ;;
 189         * ) false ;;
 190     esac
 191 }
 192
 193 class_is_multiarch_p ()
 194 {
 195     case "${class}" in
 196         *m* | *M* ) true ;;
 197         * ) false ;;
 198     esac
 199 }
 200
 201 class_is_predicate_p ()
 202 {
 203     case "${class}" in
 204         *F* | *V* | *M* ) true ;;
 205         * ) false ;;
 206     esac
 207 }
 208
 209 class_is_info_p ()
 210 {
 211     case "${class}" in
 212         *i* ) true ;;
 213         * ) false ;;
 214     esac
 215 }
 216
 217
 218 # dump out/verify the doco
 219 for field in ${read}
 220 do
 221   case ${field} in
 222
 223     class ) : ;;
 224
 225         # # -> line disable
 226         # f -> function
 227         #   hiding a function
 228         # F -> function + predicate
 229         #   hiding a function + predicate to test function validity
 230         # v -> variable
 231         #   hiding a variable
 232         # V -> variable + predicate
 233         #   hiding a variable + predicate to test variables validity
 234         # i -> set from info
 235         #   hiding something from the ``struct info'' object
 236         # m -> multi-arch function
 237         #   hiding a multi-arch function (parameterised with the architecture)
 238         # M -> multi-arch function + predicate
 239         #   hiding a multi-arch function + predicate to test function validity
 240
 241     level ) : ;;
 242
 243         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 244         # LEVEL is a predicate on checking that a given method is
 245         # initialized (using INVALID_P).
 246
 247     macro ) : ;;
 248
 249         # The name of the MACRO that this method is to be accessed by.
 250
 251     returntype ) : ;;
 252
 253         # For functions, the return type; for variables, the data type
 254
 255     function ) : ;;
 256
 257         # For functions, the member function name; for variables, the
 258         # variable name.  Member function names are always prefixed with
 259         # ``gdbarch_'' for name-space purity.
 260
 261     formal ) : ;;
 262
 263         # The formal argument list.  It is assumed that the formal
 264         # argument list includes the actual name of each list element.
 265         # A function with no arguments shall have ``void'' as the
 266         # formal argument list.
 267
 268     actual ) : ;;
 269
 270         # The list of actual arguments.  The arguments specified shall
 271         # match the FORMAL list given above.  Functions with out
 272         # arguments leave this blank.
 273
 274     attrib ) : ;;
 275
 276         # Any GCC attributes that should be attached to the function
 277         # declaration.  At present this field is unused.
 278
 279     staticdefault ) : ;;
 280
 281         # To help with the GDB startup a static gdbarch object is
 282         # created.  STATICDEFAULT is the value to insert into that
 283         # static gdbarch object.  Since this a static object only
 284         # simple expressions can be used.
 285
 286         # If STATICDEFAULT is empty, zero is used.
 287
 288     predefault ) : ;;
 289
 290         # An initial value to assign to MEMBER of the freshly
 291         # malloc()ed gdbarch object.  After initialization, the
 292         # freshly malloc()ed object is passed to the target
 293         # architecture code for further updates.
 294
 295         # If PREDEFAULT is empty, zero is used.
 296
 297         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 298         # INVALID_P are specified, PREDEFAULT will be used as the
 299         # default for the non- multi-arch target.
 300
 301         # A zero PREDEFAULT function will force the fallback to call
 302         # internal_error().
 303
 304         # Variable declarations can refer to ``gdbarch'' which will
 305         # contain the current architecture.  Care should be taken.
 306
 307     postdefault ) : ;;
 308
 309         # A value to assign to MEMBER of the new gdbarch object should
 310         # the target architecture code fail to change the PREDEFAULT
 311         # value.
 312
 313         # If POSTDEFAULT is empty, no post update is performed.
 314
 315         # If both INVALID_P and POSTDEFAULT are non-empty then
 316         # INVALID_P will be used to determine if MEMBER should be
 317         # changed to POSTDEFAULT.
 318
 319         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 320         # specified, POSTDEFAULT will be used as the default for the
 321         # non- multi-arch target (regardless of the value of
 322         # PREDEFAULT).
 323
 324         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 325
 326         # Variable declarations can refer to ``gdbarch'' which will
 327         # contain the current architecture.  Care should be taken.
 328
 329     invalid_p ) : ;;
 330
 331         # A predicate equation that validates MEMBER.  Non-zero is
 332         # returned if the code creating the new architecture failed to
 333         # initialize MEMBER or the initialized the member is invalid.
 334         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 335         # that value.  If POSTDEFAULT is empty then internal_error()
 336         # is called.
 337
 338         # If INVALID_P is empty, a check that MEMBER is no longer
 339         # equal to PREDEFAULT is used.
 340
 341         # The expression ``0'' disables the INVALID_P check making
 342         # PREDEFAULT a legitimate value.
 343
 344         # See also PREDEFAULT and POSTDEFAULT.
 345
 346     fmt ) : ;;
 347
 348         # printf style format string that can be used to print out the
 349         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 350         # ignored and the function address is printed.
 351
 352         # If FMT is empty, ``%ld'' is used.
 353
 354     print ) : ;;
 355
 356         # An optional equation that casts MEMBER to a value suitable
 357         # for formatting by FMT.
 358
 359         # If PRINT is empty, ``(long)'' is used.
 360
 361     print_p ) : ;;
 362
 363         # An optional indicator for any predicte to wrap around the
 364         # print member code.
 365
 366         #   () -> Call a custom function to do the dump.
 367         #   exp -> Wrap print up in ``if (${print_p}) ...
 368         #   ``'' -> No predicate
 369
 370         # If PRINT_P is empty, ``1'' is always used.
 371
 372     description ) : ;;
 373
 374         # Currently unused.
 375
 376     *)
 377         echo "Bad field ${field}"
 378         exit 1;;
 379   esac
 380 done
 381
 382
 383 function_list ()
 384 {
 385   # See below (DOCO) for description of each field
 386   cat <<EOF
 387 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 388 #
 389 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
 390 #
 391 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
 392 # Number of bits in a char or unsigned char for the target machine.
 393 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 394 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 395 #
 396 # Number of bits in a short or unsigned short for the target machine.
 397 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 398 # Number of bits in an int or unsigned int for the target machine.
 399 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 400 # Number of bits in a long or unsigned long for the target machine.
 401 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 402 # Number of bits in a long long or unsigned long long for the target
 403 # machine.
 404 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 405 # Number of bits in a float for the target machine.
 406 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 407 # Number of bits in a double for the target machine.
 408 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 409 # Number of bits in a long double for the target machine.
 410 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
 411 # For most targets, a pointer on the target and its representation as an
 412 # address in GDB have the same size and "look the same".  For such a
 413 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 414 # / addr_bit will be set from it.
 415 #
 416 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 417 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 418 #
 419 # ptr_bit is the size of a pointer on the target
 420 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 421 # addr_bit is the size of a target address as represented in gdb
 422 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 423 # Number of bits in a BFD_VMA for the target object file format.
 424 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 425 #
 426 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
 427 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
 428 #
 429 f:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
 430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 431 # This is simply not needed.  See value_of_builtin_frame_fp_reg and
 432 # call_function_by_hand.
 433 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
 434 f:2:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
 435 # The dummy call frame SP should be set by push_dummy_call.
 436 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
 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 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
 456 # This is simply not needed.  See value_of_builtin_frame_fp_reg and
 457 # call_function_by_hand.
 458 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
 459 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
 460 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
 461 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 462 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
 463 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 464 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 465 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 466 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 467 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 468 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 469 # Convert from an sdb register number to an internal gdb register number.
 470 # This should be defined in tm.h, if REGISTER_NAMES is not set up
 471 # to map one to one onto the sdb register numbers.
 472 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 473 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 474 f:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
 475 v:2:REGISTER_SIZE:int:register_size::::0:-1
 476 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
 477 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte::0
 478 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 479 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 480 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
 481 # by REGISTER_TYPE.
 482 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
 483 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 484 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 485 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
 486 # by REGISTER_TYPE.
 487 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
 488 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 489 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 490 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
 491 # by REGISTER_TYPE.
 492 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
 493 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 494 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 495 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
 496 # by REGISTER_TYPE.
 497 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
 498 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 499 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 500 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE have all being replaced
 501 # by REGISTER_TYPE.
 502 F:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
 503 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr::0:
 504 #
 505 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 506 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
 507 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 508 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 509 # MAP a GDB RAW register number onto a simulator register number.  See
 510 # also include/...-sim.h.
 511 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 512 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
 513 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 514 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 515 # setjmp/longjmp support.
 516 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
 517 #
 518 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
 519 # much better but at least they are vaguely consistent).  The headers
 520 # and body contain convoluted #if/#else sequences for determine how
 521 # things should be compiled.  Instead of trying to mimic that
 522 # behaviour here (and hence entrench it further) gdbarch simply
 523 # reqires that these methods be set up from the word go.  This also
 524 # avoids any potential problems with moving beyond multi-arch partial.
 525 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
 526 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
 527 f::CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void::::entry_point_address::0
 528 v::CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset
 529 v::CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset
 530 v::CALL_DUMMY_LENGTH:int:call_dummy_length
 531 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 532 # (callable) initial value.  As a consequence, even when the predicate
 533 # is false, the corresponding function works.  This simplifies the
 534 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 535 # doesn't need to be modified.
 536 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
 537 v::CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 538 v::SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 539 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust::::0
 540 F::FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p
 541 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
 542 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 543 #
 544 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 545 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 546 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
 547 #
 548 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
 549 f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
 550 f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to:::0::0
 551 #
 552 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
 553 f:1:REGISTER_TO_VALUE:void:register_to_value:int regnum, struct type *type, char *from, char *to:regnum, type, from, to::0:legacy_register_to_value::0
 554 f:1:VALUE_TO_REGISTER:void:value_to_register:struct type *type, int regnum, char *from, char *to:type, regnum, from, to::0:legacy_value_to_register::0
 555 #
 556 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 557 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
 558 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 559 #
 560 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 561 # Replaced by PUSH_DUMMY_CALL
 562 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
 563 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:struct regcache *regcache, CORE_ADDR dummy_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:regcache, dummy_addr, nargs, args, sp, struct_return, struct_addr
 564 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-:::0
 565 # NOTE: This can be handled directly in push_dummy_call.
 566 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
 567 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-:::0
 568 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 569 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
 570 #
 571 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
 572 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
 573 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 574 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 575 #
 576 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
 577 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
 578 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
 579 #
 580 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame:::0
 581 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
 582 #
 583 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 584 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
 585 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 586 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
 587 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 588 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 589 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
 590 f:2:PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
 591 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
 592 #
 593 f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
 594 #
 595 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 596 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 597 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame::0:0
 598 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
 599 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 600 # note, per UNWIND_PC's doco, that while the two have similar
 601 # interfaces they have very different underlying implementations.
 602 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi::0:0
 603 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame:
 604 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:get_frame_base::0
 605 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:get_frame_base::0
 606 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 607 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
 608 #
 609 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
 610 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 611 # NOTE: cagney/2003-03-24: This is better handled by PUSH_ARGUMENTS.
 612 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
 613 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
 614 # FIXME: kettenis/2003-03-08: This should be replaced by a function
 615 # parametrized with (at least) the regcache.
 616 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
 617 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info::0:0
 618 v:2:PARM_BOUNDARY:int:parm_boundary
 619 #
 620 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 621 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 622 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 623 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
 624 # On some machines there are bits in addresses which are not really
 625 # part of the address, but are used by the kernel, the hardware, etc.
 626 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 627 # we get a "real" address such as one would find in a symbol table.
 628 # This is used only for addresses of instructions, and even then I'm
 629 # not sure it's used in all contexts.  It exists to deal with there
 630 # being a few stray bits in the PC which would mislead us, not as some
 631 # sort of generic thing to handle alignment or segmentation (it's
 632 # possible it should be in TARGET_READ_PC instead).
 633 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 634 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 635 # ADDR_BITS_REMOVE.
 636 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 637 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 638 # the target needs software single step.  An ISA method to implement it.
 639 #
 640 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 641 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 642 #
 643 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 644 # single step.  If not, then implement single step using breakpoints.
 645 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
 646 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
 647 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 648
 649
 650 # For SVR4 shared libraries, each call goes through a small piece of
 651 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 652 # to nonzero if we are currently stopped in one of these.
 653 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 654
 655 # Some systems also have trampoline code for returning from shared libs.
 656 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 657
 658 # Sigtramp is a routine that the kernel calls (which then calls the
 659 # signal handler).  On most machines it is a library routine that is
 660 # linked into the executable.
 661 #
 662 # This macro, given a program counter value and the name of the
 663 # function in which that PC resides (which can be null if the name is
 664 # not known), returns nonzero if the PC and name show that we are in
 665 # sigtramp.
 666 #
 667 # On most machines just see if the name is sigtramp (and if we have
 668 # no name, assume we are not in sigtramp).
 669 #
 670 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 671 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 672 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 673 # own local NAME lookup.
 674 #
 675 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 676 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 677 # does not.
 678 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 679 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 680 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 681 # A target might have problems with watchpoints as soon as the stack
 682 # frame of the current function has been destroyed.  This mostly happens
 683 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 684 # is defined to return a non-zero value if either the given addr is one
 685 # instruction after the stack destroying instruction up to the trailing
 686 # return instruction or if we can figure out that the stack frame has
 687 # already been invalidated regardless of the value of addr.  Targets
 688 # which don't suffer from that problem could just let this functionality
 689 # untouched.
 690 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 691 # Given a vector of command-line arguments, return a newly allocated
 692 # string which, when passed to the create_inferior function, will be
 693 # parsed (on Unix systems, by the shell) to yield the same vector.
 694 # This function should call error() if the argument vector is not
 695 # representable for this target or if this target does not support
 696 # command-line arguments.
 697 # ARGC is the number of elements in the vector.
 698 # ARGV is an array of strings, one per argument.
 699 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 700 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
 701 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
 702 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
 703 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 704 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 705 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 706 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 707 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags:
 708 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
 709 # Is a register in a group
 710 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 711 EOF
 712 }
 713
 714 #
 715 # The .log file
 716 #
 717 exec > new-gdbarch.log
 718 function_list | while do_read
 719 do
 720     cat <<EOF
 721 ${class} ${macro}(${actual})
 722   ${returntype} ${function} ($formal)${attrib}
 723 EOF
 724     for r in ${read}
 725     do
 726         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 727     done
 728     if class_is_predicate_p && fallback_default_p
 729     then
 730         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 731         kill $$
 732         exit 1
 733     fi
 734     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 735     then
 736         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 737         kill $$
 738         exit 1
 739     fi
 740     if class_is_multiarch_p
 741     then
 742         if class_is_predicate_p ; then :
 743         elif test "x${predefault}" = "x"
 744         then
 745             echo "Error: pure multi-arch function must have a predefault" 1>&2
 746             kill $$
 747             exit 1
 748         fi
 749     fi
 750     echo ""
 751 done
 752
 753 exec 1>&2
 754 compare_new gdbarch.log
 755
 756
 757 copyright ()
 758 {
 759 cat <<EOF
 760 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 761
 762 /* Dynamic architecture support for GDB, the GNU debugger.
 763    Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 764
 765    This file is part of GDB.
 766
 767    This program is free software; you can redistribute it and/or modify
 768    it under the terms of the GNU General Public License as published by
 769    the Free Software Foundation; either version 2 of the License, or
 770    (at your option) any later version.
 771
 772    This program is distributed in the hope that it will be useful,
 773    but WITHOUT ANY WARRANTY; without even the implied warranty of
 774    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 775    GNU General Public License for more details.
 776
 777    You should have received a copy of the GNU General Public License
 778    along with this program; if not, write to the Free Software
 779    Foundation, Inc., 59 Temple Place - Suite 330,
 780    Boston, MA 02111-1307, USA.  */
 781
 782 /* This file was created with the aid of \`\`gdbarch.sh''.
 783
 784    The Bourne shell script \`\`gdbarch.sh'' creates the files
 785    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 786    against the existing \`\`gdbarch.[hc]''.  Any differences found
 787    being reported.
 788
 789    If editing this file, please also run gdbarch.sh and merge any
 790    changes into that script. Conversely, when making sweeping changes
 791    to this file, modifying gdbarch.sh and using its output may prove
 792    easier. */
 793
 794 EOF
 795 }
 796
 797 #
 798 # The .h file
 799 #
 800
 801 exec > new-gdbarch.h
 802 copyright
 803 cat <<EOF
 804 #ifndef GDBARCH_H
 805 #define GDBARCH_H
 806
 807 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
 808 #if !GDB_MULTI_ARCH
 809 /* Pull in function declarations refered to, indirectly, via macros.  */
 810 #include "inferior.h"           /* For unsigned_address_to_pointer().  */
 811 #include "symfile.h"            /* For entry_point_address().  */
 812 #endif
 813
 814 struct floatformat;
 815 struct ui_file;
 816 struct frame_info;
 817 struct value;
 818 struct objfile;
 819 struct minimal_symbol;
 820 struct regcache;
 821 struct reggroup;
 822
 823 extern struct gdbarch *current_gdbarch;
 824
 825
 826 /* If any of the following are defined, the target wasn't correctly
 827    converted. */
 828
 829 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 830 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 831 #endif
 832 EOF
 833
 834 # function typedef's
 835 printf "\n"
 836 printf "\n"
 837 printf "/* The following are pre-initialized by GDBARCH. */\n"
 838 function_list | while do_read
 839 do
 840     if class_is_info_p
 841     then
 842         printf "\n"
 843         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 844         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 845         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 846         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 847         printf "#endif\n"
 848         printf "#if GDB_MULTI_ARCH\n"
 849         printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
 850         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 851         printf "#endif\n"
 852         printf "#endif\n"
 853     fi
 854 done
 855
 856 # function typedef's
 857 printf "\n"
 858 printf "\n"
 859 printf "/* The following are initialized by the target dependent code. */\n"
 860 function_list | while do_read
 861 do
 862     if [ -n "${comment}" ]
 863     then
 864         echo "${comment}" | sed \
 865             -e '2 s,#,/*,' \
 866             -e '3,$ s,#,  ,' \
 867             -e '$ s,$, */,'
 868     fi
 869     if class_is_multiarch_p
 870     then
 871         if class_is_predicate_p
 872         then
 873             printf "\n"
 874             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 875         fi
 876     else
 877         if class_is_predicate_p
 878         then
 879             printf "\n"
 880             printf "#if defined (${macro})\n"
 881             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 882             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 883             printf "#if !defined (${macro}_P)\n"
 884             printf "#define ${macro}_P() (1)\n"
 885             printf "#endif\n"
 886             printf "#endif\n"
 887             printf "\n"
 888             printf "/* Default predicate for non- multi-arch targets. */\n"
 889             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
 890             printf "#define ${macro}_P() (0)\n"
 891             printf "#endif\n"
 892             printf "\n"
 893             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 894             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 895             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 896             printf "#endif\n"
 897             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 898             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 899             printf "#endif\n"
 900         fi
 901     fi
 902     if class_is_variable_p
 903     then
 904         if fallback_default_p || class_is_predicate_p
 905         then
 906             printf "\n"
 907             printf "/* Default (value) for non- multi-arch platforms. */\n"
 908             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 909             echo "#define ${macro} (${fallbackdefault})" \
 910                 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 911             printf "#endif\n"
 912         fi
 913         printf "\n"
 914         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 915         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 916         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 917         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 918         printf "#endif\n"
 919         if test "${level}" = ""
 920         then
 921             printf "#if !defined (${macro})\n"
 922             printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 923             printf "#endif\n"
 924         else
 925             printf "#if GDB_MULTI_ARCH\n"
 926             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
 927             printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 928             printf "#endif\n"
 929             printf "#endif\n"
 930         fi
 931     fi
 932     if class_is_function_p
 933     then
 934         if class_is_multiarch_p ; then :
 935         elif fallback_default_p || class_is_predicate_p
 936         then
 937             printf "\n"
 938             printf "/* Default (function) for non- multi-arch platforms. */\n"
 939             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 940             if [ "x${fallbackdefault}" = "x0" ]
 941             then
 942                 if [ "x${actual}" = "x-" ]
 943                 then
 944                     printf "#define ${macro} (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
 945                 else
 946                     printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
 947                 fi
 948             else
 949                 # FIXME: Should be passing current_gdbarch through!
 950                 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
 951                     | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 952             fi
 953             printf "#endif\n"
 954         fi
 955         printf "\n"
 956         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 957         then
 958             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 959         elif class_is_multiarch_p
 960         then
 961             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 962         else
 963             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 964         fi
 965         if [ "x${formal}" = "xvoid" ]
 966         then
 967           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 968         else
 969           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 970         fi
 971         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 972         if class_is_multiarch_p ; then :
 973         else
 974             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 975             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 976             printf "#endif\n"
 977             printf "#if GDB_MULTI_ARCH\n"
 978             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
 979             if [ "x${actual}" = "x" ]
 980             then
 981                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 982             elif [ "x${actual}" = "x-" ]
 983             then
 984                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 985             else
 986                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
 987             fi
 988             printf "#endif\n"
 989             printf "#endif\n"
 990         fi
 991     fi
 992 done
 993
 994 # close it off
 995 cat <<EOF
 996
 997 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 998
 999
1000 /* Mechanism for co-ordinating the selection of a specific
1001    architecture.
1002
1003    GDB targets (*-tdep.c) can register an interest in a specific
1004    architecture.  Other GDB components can register a need to maintain
1005    per-architecture data.
1006
1007    The mechanisms below ensures that there is only a loose connection
1008    between the set-architecture command and the various GDB
1009    components.  Each component can independently register their need
1010    to maintain architecture specific data with gdbarch.
1011
1012    Pragmatics:
1013
1014    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1015    didn't scale.
1016
1017    The more traditional mega-struct containing architecture specific
1018    data for all the various GDB components was also considered.  Since
1019    GDB is built from a variable number of (fairly independent)
1020    components it was determined that the global aproach was not
1021    applicable. */
1022
1023
1024 /* Register a new architectural family with GDB.
1025
1026    Register support for the specified ARCHITECTURE with GDB.  When
1027    gdbarch determines that the specified architecture has been
1028    selected, the corresponding INIT function is called.
1029
1030    --
1031
1032    The INIT function takes two parameters: INFO which contains the
1033    information available to gdbarch about the (possibly new)
1034    architecture; ARCHES which is a list of the previously created
1035    \`\`struct gdbarch'' for this architecture.
1036
1037    The INFO parameter is, as far as possible, be pre-initialized with
1038    information obtained from INFO.ABFD or the previously selected
1039    architecture.
1040
1041    The ARCHES parameter is a linked list (sorted most recently used)
1042    of all the previously created architures for this architecture
1043    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1044    values from the previously selected architecture for this
1045    architecture family.  The global \`\`current_gdbarch'' shall not be
1046    used.
1047
1048    The INIT function shall return any of: NULL - indicating that it
1049    doesn't recognize the selected architecture; an existing \`\`struct
1050    gdbarch'' from the ARCHES list - indicating that the new
1051    architecture is just a synonym for an earlier architecture (see
1052    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1053    - that describes the selected architecture (see gdbarch_alloc()).
1054
1055    The DUMP_TDEP function shall print out all target specific values.
1056    Care should be taken to ensure that the function works in both the
1057    multi-arch and non- multi-arch cases. */
1058
1059 struct gdbarch_list
1060 {
1061   struct gdbarch *gdbarch;
1062   struct gdbarch_list *next;
1063 };
1064
1065 struct gdbarch_info
1066 {
1067   /* Use default: NULL (ZERO). */
1068   const struct bfd_arch_info *bfd_arch_info;
1069
1070   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1071   int byte_order;
1072
1073   /* Use default: NULL (ZERO). */
1074   bfd *abfd;
1075
1076   /* Use default: NULL (ZERO). */
1077   struct gdbarch_tdep_info *tdep_info;
1078
1079   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1080   enum gdb_osabi osabi;
1081 };
1082
1083 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1084 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1085
1086 /* DEPRECATED - use gdbarch_register() */
1087 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1088
1089 extern void gdbarch_register (enum bfd_architecture architecture,
1090                               gdbarch_init_ftype *,
1091                               gdbarch_dump_tdep_ftype *);
1092
1093
1094 /* Return a freshly allocated, NULL terminated, array of the valid
1095    architecture names.  Since architectures are registered during the
1096    _initialize phase this function only returns useful information
1097    once initialization has been completed. */
1098
1099 extern const char **gdbarch_printable_names (void);
1100
1101
1102 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1103    matches the information provided by INFO. */
1104
1105 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1106
1107
1108 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1109    basic initialization using values obtained from the INFO andTDEP
1110    parameters.  set_gdbarch_*() functions are called to complete the
1111    initialization of the object. */
1112
1113 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1114
1115
1116 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1117    It is assumed that the caller freeds the \`\`struct
1118    gdbarch_tdep''. */
1119
1120 extern void gdbarch_free (struct gdbarch *);
1121
1122
1123 /* Helper function. Force an update of the current architecture.
1124
1125    The actual architecture selected is determined by INFO, \`\`(gdb) set
1126    architecture'' et.al., the existing architecture and BFD's default
1127    architecture.  INFO should be initialized to zero and then selected
1128    fields should be updated.
1129
1130    Returns non-zero if the update succeeds */
1131
1132 extern int gdbarch_update_p (struct gdbarch_info info);
1133
1134
1135
1136 /* Register per-architecture data-pointer.
1137
1138    Reserve space for a per-architecture data-pointer.  An identifier
1139    for the reserved data-pointer is returned.  That identifer should
1140    be saved in a local static variable.
1141
1142    The per-architecture data-pointer is either initialized explicitly
1143    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1144    gdbarch_data()).  FREE() is called to delete either an existing
1145    data-pointer overridden by set_gdbarch_data() or when the
1146    architecture object is being deleted.
1147
1148    When a previously created architecture is re-selected, the
1149    per-architecture data-pointer for that previous architecture is
1150    restored.  INIT() is not re-called.
1151
1152    Multiple registrarants for any architecture are allowed (and
1153    strongly encouraged).  */
1154
1155 struct gdbarch_data;
1156
1157 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1158 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1159                                         void *pointer);
1160 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1161                                                    gdbarch_data_free_ftype *free);
1162 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1163                               struct gdbarch_data *data,
1164                               void *pointer);
1165
1166 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1167
1168
1169 /* Register per-architecture memory region.
1170
1171    Provide a memory-region swap mechanism.  Per-architecture memory
1172    region are created.  These memory regions are swapped whenever the
1173    architecture is changed.  For a new architecture, the memory region
1174    is initialized with zero (0) and the INIT function is called.
1175
1176    Memory regions are swapped / initialized in the order that they are
1177    registered.  NULL DATA and/or INIT values can be specified.
1178
1179    New code should use register_gdbarch_data(). */
1180
1181 typedef void (gdbarch_swap_ftype) (void);
1182 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1183 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1184
1185
1186
1187 /* The target-system-dependent byte order is dynamic */
1188
1189 extern int target_byte_order;
1190 #ifndef TARGET_BYTE_ORDER
1191 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1192 #endif
1193
1194 extern int target_byte_order_auto;
1195 #ifndef TARGET_BYTE_ORDER_AUTO
1196 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1197 #endif
1198
1199
1200
1201 /* The target-system-dependent BFD architecture is dynamic */
1202
1203 extern int target_architecture_auto;
1204 #ifndef TARGET_ARCHITECTURE_AUTO
1205 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1206 #endif
1207
1208 extern const struct bfd_arch_info *target_architecture;
1209 #ifndef TARGET_ARCHITECTURE
1210 #define TARGET_ARCHITECTURE (target_architecture + 0)
1211 #endif
1212
1213
1214 /* The target-system-dependent disassembler is semi-dynamic */
1215
1216 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1217                                 unsigned int len, disassemble_info *info);
1218
1219 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1220                                   disassemble_info *info);
1221
1222 extern void dis_asm_print_address (bfd_vma addr,
1223                                    disassemble_info *info);
1224
1225 /* Use set_gdbarch_print_insn instead.  */
1226 extern int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info*);
1227 extern disassemble_info tm_print_insn_info;
1228 #ifndef TARGET_PRINT_INSN_INFO
1229 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1230 #endif
1231
1232
1233
1234 /* Set the dynamic target-system-dependent parameters (architecture,
1235    byte-order, ...) using information found in the BFD */
1236
1237 extern void set_gdbarch_from_file (bfd *);
1238
1239
1240 /* Initialize the current architecture to the "first" one we find on
1241    our list.  */
1242
1243 extern void initialize_current_architecture (void);
1244
1245 /* For non-multiarched targets, do any initialization of the default
1246    gdbarch object necessary after the _initialize_MODULE functions
1247    have run.  */
1248 extern void initialize_non_multiarch (void);
1249
1250 /* gdbarch trace variable */
1251 extern int gdbarch_debug;
1252
1253 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1254
1255 #endif
1256 EOF
1257 exec 1>&2
1258 #../move-if-change new-gdbarch.h gdbarch.h
1259 compare_new gdbarch.h
1260
1261
1262 #
1263 # C file
1264 #
1265
1266 exec > new-gdbarch.c
1267 copyright
1268 cat <<EOF
1269
1270 #include "defs.h"
1271 #include "arch-utils.h"
1272
1273 #if GDB_MULTI_ARCH
1274 #include "gdbcmd.h"
1275 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1276 #else
1277 /* Just include everything in sight so that the every old definition
1278    of macro is visible. */
1279 #include "gdb_string.h"
1280 #include <ctype.h>
1281 #include "symtab.h"
1282 #include "frame.h"
1283 #include "inferior.h"
1284 #include "breakpoint.h"
1285 #include "gdb_wait.h"
1286 #include "gdbcore.h"
1287 #include "gdbcmd.h"
1288 #include "target.h"
1289 #include "gdbthread.h"
1290 #include "annotate.h"
1291 #include "symfile.h"            /* for overlay functions */
1292 #include "value.h"              /* For old tm.h/nm.h macros.  */
1293 #endif
1294 #include "symcat.h"
1295
1296 #include "floatformat.h"
1297
1298 #include "gdb_assert.h"
1299 #include "gdb_string.h"
1300 #include "gdb-events.h"
1301 #include "reggroups.h"
1302 #include "osabi.h"
1303 #include "symfile.h"            /* For entry_point_address.  */
1304
1305 /* Static function declarations */
1306
1307 static void verify_gdbarch (struct gdbarch *gdbarch);
1308 static void alloc_gdbarch_data (struct gdbarch *);
1309 static void free_gdbarch_data (struct gdbarch *);
1310 static void init_gdbarch_swap (struct gdbarch *);
1311 static void clear_gdbarch_swap (struct gdbarch *);
1312 static void swapout_gdbarch_swap (struct gdbarch *);
1313 static void swapin_gdbarch_swap (struct gdbarch *);
1314
1315 /* Non-zero if we want to trace architecture code.  */
1316
1317 #ifndef GDBARCH_DEBUG
1318 #define GDBARCH_DEBUG 0
1319 #endif
1320 int gdbarch_debug = GDBARCH_DEBUG;
1321
1322 EOF
1323
1324 # gdbarch open the gdbarch object
1325 printf "\n"
1326 printf "/* Maintain the struct gdbarch object */\n"
1327 printf "\n"
1328 printf "struct gdbarch\n"
1329 printf "{\n"
1330 printf "  /* Has this architecture been fully initialized?  */\n"
1331 printf "  int initialized_p;\n"
1332 printf "  /* basic architectural information */\n"
1333 function_list | while do_read
1334 do
1335     if class_is_info_p
1336     then
1337         printf "  ${returntype} ${function};\n"
1338     fi
1339 done
1340 printf "\n"
1341 printf "  /* target specific vector. */\n"
1342 printf "  struct gdbarch_tdep *tdep;\n"
1343 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1344 printf "\n"
1345 printf "  /* per-architecture data-pointers */\n"
1346 printf "  unsigned nr_data;\n"
1347 printf "  void **data;\n"
1348 printf "\n"
1349 printf "  /* per-architecture swap-regions */\n"
1350 printf "  struct gdbarch_swap *swap;\n"
1351 printf "\n"
1352 cat <<EOF
1353   /* Multi-arch values.
1354
1355      When extending this structure you must:
1356
1357      Add the field below.
1358
1359      Declare set/get functions and define the corresponding
1360      macro in gdbarch.h.
1361
1362      gdbarch_alloc(): If zero/NULL is not a suitable default,
1363      initialize the new field.
1364
1365      verify_gdbarch(): Confirm that the target updated the field
1366      correctly.
1367
1368      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1369      field is dumped out
1370
1371      \`\`startup_gdbarch()'': Append an initial value to the static
1372      variable (base values on the host's c-type system).
1373
1374      get_gdbarch(): Implement the set/get functions (probably using
1375      the macro's as shortcuts).
1376
1377      */
1378
1379 EOF
1380 function_list | while do_read
1381 do
1382     if class_is_variable_p
1383     then
1384         printf "  ${returntype} ${function};\n"
1385     elif class_is_function_p
1386     then
1387         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1388     fi
1389 done
1390 printf "};\n"
1391
1392 # A pre-initialized vector
1393 printf "\n"
1394 printf "\n"
1395 cat <<EOF
1396 /* The default architecture uses host values (for want of a better
1397    choice). */
1398 EOF
1399 printf "\n"
1400 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1401 printf "\n"
1402 printf "struct gdbarch startup_gdbarch =\n"
1403 printf "{\n"
1404 printf "  1, /* Always initialized.  */\n"
1405 printf "  /* basic architecture information */\n"
1406 function_list | while do_read
1407 do
1408     if class_is_info_p
1409     then
1410         printf "  ${staticdefault},\n"
1411     fi
1412 done
1413 cat <<EOF
1414   /* target specific vector and its dump routine */
1415   NULL, NULL,
1416   /*per-architecture data-pointers and swap regions */
1417   0, NULL, NULL,
1418   /* Multi-arch values */
1419 EOF
1420 function_list | while do_read
1421 do
1422     if class_is_function_p || class_is_variable_p
1423     then
1424         printf "  ${staticdefault},\n"
1425     fi
1426 done
1427 cat <<EOF
1428   /* startup_gdbarch() */
1429 };
1430
1431 struct gdbarch *current_gdbarch = &startup_gdbarch;
1432
1433 /* Do any initialization needed for a non-multiarch configuration
1434    after the _initialize_MODULE functions have been run.  */
1435 void
1436 initialize_non_multiarch (void)
1437 {
1438   alloc_gdbarch_data (&startup_gdbarch);
1439   /* Ensure that all swap areas are zeroed so that they again think
1440      they are starting from scratch.  */
1441   clear_gdbarch_swap (&startup_gdbarch);
1442   init_gdbarch_swap (&startup_gdbarch);
1443 }
1444 EOF
1445
1446 # Create a new gdbarch struct
1447 printf "\n"
1448 printf "\n"
1449 cat <<EOF
1450 /* Create a new \`\`struct gdbarch'' based on information provided by
1451    \`\`struct gdbarch_info''. */
1452 EOF
1453 printf "\n"
1454 cat <<EOF
1455 struct gdbarch *
1456 gdbarch_alloc (const struct gdbarch_info *info,
1457                struct gdbarch_tdep *tdep)
1458 {
1459   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1460      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1461      the current local architecture and not the previous global
1462      architecture.  This ensures that the new architectures initial
1463      values are not influenced by the previous architecture.  Once
1464      everything is parameterised with gdbarch, this will go away.  */
1465   struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1466   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1467
1468   alloc_gdbarch_data (current_gdbarch);
1469
1470   current_gdbarch->tdep = tdep;
1471 EOF
1472 printf "\n"
1473 function_list | while do_read
1474 do
1475     if class_is_info_p
1476     then
1477         printf "  current_gdbarch->${function} = info->${function};\n"
1478     fi
1479 done
1480 printf "\n"
1481 printf "  /* Force the explicit initialization of these. */\n"
1482 function_list | while do_read
1483 do
1484     if class_is_function_p || class_is_variable_p
1485     then
1486         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1487         then
1488           printf "  current_gdbarch->${function} = ${predefault};\n"
1489         fi
1490     fi
1491 done
1492 cat <<EOF
1493   /* gdbarch_alloc() */
1494
1495   return current_gdbarch;
1496 }
1497 EOF
1498
1499 # Free a gdbarch struct.
1500 printf "\n"
1501 printf "\n"
1502 cat <<EOF
1503 /* Free a gdbarch struct.  This should never happen in normal
1504    operation --- once you've created a gdbarch, you keep it around.
1505    However, if an architecture's init function encounters an error
1506    building the structure, it may need to clean up a partially
1507    constructed gdbarch.  */
1508
1509 void
1510 gdbarch_free (struct gdbarch *arch)
1511 {
1512   gdb_assert (arch != NULL);
1513   free_gdbarch_data (arch);
1514   xfree (arch);
1515 }
1516 EOF
1517
1518 # verify a new architecture
1519 printf "\n"
1520 printf "\n"
1521 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1522 printf "\n"
1523 cat <<EOF
1524 static void
1525 verify_gdbarch (struct gdbarch *gdbarch)
1526 {
1527   struct ui_file *log;
1528   struct cleanup *cleanups;
1529   long dummy;
1530   char *buf;
1531   /* Only perform sanity checks on a multi-arch target. */
1532   if (!GDB_MULTI_ARCH)
1533     return;
1534   log = mem_fileopen ();
1535   cleanups = make_cleanup_ui_file_delete (log);
1536   /* fundamental */
1537   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1538     fprintf_unfiltered (log, "\n\tbyte-order");
1539   if (gdbarch->bfd_arch_info == NULL)
1540     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1541   /* Check those that need to be defined for the given multi-arch level. */
1542 EOF
1543 function_list | while do_read
1544 do
1545     if class_is_function_p || class_is_variable_p
1546     then
1547         if [ "x${invalid_p}" = "x0" ]
1548         then
1549             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1550         elif class_is_predicate_p
1551         then
1552             printf "  /* Skip verify of ${function}, has predicate */\n"
1553         # FIXME: See do_read for potential simplification
1554         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1555         then
1556             printf "  if (${invalid_p})\n"
1557             printf "    gdbarch->${function} = ${postdefault};\n"
1558         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1559         then
1560             printf "  if (gdbarch->${function} == ${predefault})\n"
1561             printf "    gdbarch->${function} = ${postdefault};\n"
1562         elif [ -n "${postdefault}" ]
1563         then
1564             printf "  if (gdbarch->${function} == 0)\n"
1565             printf "    gdbarch->${function} = ${postdefault};\n"
1566         elif [ -n "${invalid_p}" ]
1567         then
1568             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1569             printf "      && (${invalid_p}))\n"
1570             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1571         elif [ -n "${predefault}" ]
1572         then
1573             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1574             printf "      && (gdbarch->${function} == ${predefault}))\n"
1575             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1576         fi
1577     fi
1578 done
1579 cat <<EOF
1580   buf = ui_file_xstrdup (log, &dummy);
1581   make_cleanup (xfree, buf);
1582   if (strlen (buf) > 0)
1583     internal_error (__FILE__, __LINE__,
1584                     "verify_gdbarch: the following are invalid ...%s",
1585                     buf);
1586   do_cleanups (cleanups);
1587 }
1588 EOF
1589
1590 # dump the structure
1591 printf "\n"
1592 printf "\n"
1593 cat <<EOF
1594 /* Print out the details of the current architecture. */
1595
1596 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1597    just happens to match the global variable \`\`current_gdbarch''.  That
1598    way macros refering to that variable get the local and not the global
1599    version - ulgh.  Once everything is parameterised with gdbarch, this
1600    will go away. */
1601
1602 void
1603 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1604 {
1605   fprintf_unfiltered (file,
1606                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1607                       GDB_MULTI_ARCH);
1608 EOF
1609 function_list | sort -t: -k 3 | while do_read
1610 do
1611     # First the predicate
1612     if class_is_predicate_p
1613     then
1614         if class_is_multiarch_p
1615         then
1616             printf "  if (GDB_MULTI_ARCH)\n"
1617             printf "    fprintf_unfiltered (file,\n"
1618             printf "                        \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1619             printf "                        gdbarch_${function}_p (current_gdbarch));\n"
1620         else
1621             printf "#ifdef ${macro}_P\n"
1622             printf "  fprintf_unfiltered (file,\n"
1623             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1624             printf "                      \"${macro}_P()\",\n"
1625             printf "                      XSTRING (${macro}_P ()));\n"
1626             printf "  fprintf_unfiltered (file,\n"
1627             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1628             printf "                      ${macro}_P ());\n"
1629             printf "#endif\n"
1630         fi
1631     fi
1632     # multiarch functions don't have macros.
1633     if class_is_multiarch_p
1634     then
1635         printf "  if (GDB_MULTI_ARCH)\n"
1636         printf "    fprintf_unfiltered (file,\n"
1637         printf "                        \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1638         printf "                        (long) current_gdbarch->${function});\n"
1639         continue
1640     fi
1641     # Print the macro definition.
1642     printf "#ifdef ${macro}\n"
1643     if [ "x${returntype}" = "xvoid" ]
1644     then
1645         printf "#if GDB_MULTI_ARCH\n"
1646         printf "  /* Macro might contain \`[{}]' when not multi-arch */\n"
1647     fi
1648     if class_is_function_p
1649     then
1650         printf "  fprintf_unfiltered (file,\n"
1651         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1652         printf "                      \"${macro}(${actual})\",\n"
1653         printf "                      XSTRING (${macro} (${actual})));\n"
1654     else
1655         printf "  fprintf_unfiltered (file,\n"
1656         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1657         printf "                      XSTRING (${macro}));\n"
1658     fi
1659     # Print the architecture vector value
1660     if [ "x${returntype}" = "xvoid" ]
1661     then
1662         printf "#endif\n"
1663     fi
1664     if [ "x${print_p}" = "x()" ]
1665     then
1666         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1667     elif [ "x${print_p}" = "x0" ]
1668     then
1669         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1670     elif [ -n "${print_p}" ]
1671     then
1672         printf "  if (${print_p})\n"
1673         printf "    fprintf_unfiltered (file,\n"
1674         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1675         printf "                        ${print});\n"
1676     elif class_is_function_p
1677     then
1678         printf "  if (GDB_MULTI_ARCH)\n"
1679         printf "    fprintf_unfiltered (file,\n"
1680         printf "                        \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1681         printf "                        (long) current_gdbarch->${function}\n"
1682         printf "                        /*${macro} ()*/);\n"
1683     else
1684         printf "  fprintf_unfiltered (file,\n"
1685         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1686         printf "                      ${print});\n"
1687     fi
1688     printf "#endif\n"
1689 done
1690 cat <<EOF
1691   if (current_gdbarch->dump_tdep != NULL)
1692     current_gdbarch->dump_tdep (current_gdbarch, file);
1693 }
1694 EOF
1695
1696
1697 # GET/SET
1698 printf "\n"
1699 cat <<EOF
1700 struct gdbarch_tdep *
1701 gdbarch_tdep (struct gdbarch *gdbarch)
1702 {
1703   if (gdbarch_debug >= 2)
1704     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1705   return gdbarch->tdep;
1706 }
1707 EOF
1708 printf "\n"
1709 function_list | while do_read
1710 do
1711     if class_is_predicate_p
1712     then
1713         printf "\n"
1714         printf "int\n"
1715         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1716         printf "{\n"
1717         printf "  gdb_assert (gdbarch != NULL);\n"
1718         if [ -n "${predicate}" ]
1719         then
1720             printf "  return ${predicate};\n"
1721         else
1722             printf "  return gdbarch->${function} != 0;\n"
1723         fi
1724         printf "}\n"
1725     fi
1726     if class_is_function_p
1727     then
1728         printf "\n"
1729         printf "${returntype}\n"
1730         if [ "x${formal}" = "xvoid" ]
1731         then
1732           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1733         else
1734           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1735         fi
1736         printf "{\n"
1737         printf "  gdb_assert (gdbarch != NULL);\n"
1738         printf "  if (gdbarch->${function} == 0)\n"
1739         printf "    internal_error (__FILE__, __LINE__,\n"
1740         printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1741         if class_is_predicate_p && test -n "${predicate}"
1742         then
1743             # Allow a call to a function with a predicate.
1744             printf "  /* Ignore predicate (${predicate}).  */\n"
1745         fi
1746         printf "  if (gdbarch_debug >= 2)\n"
1747         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1748         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1749         then
1750             if class_is_multiarch_p
1751             then
1752                 params="gdbarch"
1753             else
1754                 params=""
1755             fi
1756         else
1757             if class_is_multiarch_p
1758             then
1759                 params="gdbarch, ${actual}"
1760             else
1761                 params="${actual}"
1762             fi
1763         fi
1764         if [ "x${returntype}" = "xvoid" ]
1765         then
1766           printf "  gdbarch->${function} (${params});\n"
1767         else
1768           printf "  return gdbarch->${function} (${params});\n"
1769         fi
1770         printf "}\n"
1771         printf "\n"
1772         printf "void\n"
1773         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1774         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1775         printf "{\n"
1776         printf "  gdbarch->${function} = ${function};\n"
1777         printf "}\n"
1778     elif class_is_variable_p
1779     then
1780         printf "\n"
1781         printf "${returntype}\n"
1782         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1783         printf "{\n"
1784         printf "  gdb_assert (gdbarch != NULL);\n"
1785         if [ "x${invalid_p}" = "x0" ]
1786         then
1787             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1788         elif [ -n "${invalid_p}" ]
1789         then
1790           printf "  if (${invalid_p})\n"
1791           printf "    internal_error (__FILE__, __LINE__,\n"
1792           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1793         elif [ -n "${predefault}" ]
1794         then
1795           printf "  if (gdbarch->${function} == ${predefault})\n"
1796           printf "    internal_error (__FILE__, __LINE__,\n"
1797           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1798         fi
1799         printf "  if (gdbarch_debug >= 2)\n"
1800         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1801         printf "  return gdbarch->${function};\n"
1802         printf "}\n"
1803         printf "\n"
1804         printf "void\n"
1805         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1806         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1807         printf "{\n"
1808         printf "  gdbarch->${function} = ${function};\n"
1809         printf "}\n"
1810     elif class_is_info_p
1811     then
1812         printf "\n"
1813         printf "${returntype}\n"
1814         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1815         printf "{\n"
1816         printf "  gdb_assert (gdbarch != NULL);\n"
1817         printf "  if (gdbarch_debug >= 2)\n"
1818         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1819         printf "  return gdbarch->${function};\n"
1820         printf "}\n"
1821     fi
1822 done
1823
1824 # All the trailing guff
1825 cat <<EOF
1826
1827
1828 /* Keep a registry of per-architecture data-pointers required by GDB
1829    modules. */
1830
1831 struct gdbarch_data
1832 {
1833   unsigned index;
1834   int init_p;
1835   gdbarch_data_init_ftype *init;
1836   gdbarch_data_free_ftype *free;
1837 };
1838
1839 struct gdbarch_data_registration
1840 {
1841   struct gdbarch_data *data;
1842   struct gdbarch_data_registration *next;
1843 };
1844
1845 struct gdbarch_data_registry
1846 {
1847   unsigned nr;
1848   struct gdbarch_data_registration *registrations;
1849 };
1850
1851 struct gdbarch_data_registry gdbarch_data_registry =
1852 {
1853   0, NULL,
1854 };
1855
1856 struct gdbarch_data *
1857 register_gdbarch_data (gdbarch_data_init_ftype *init,
1858                        gdbarch_data_free_ftype *free)
1859 {
1860   struct gdbarch_data_registration **curr;
1861   /* Append the new registraration.  */
1862   for (curr = &gdbarch_data_registry.registrations;
1863        (*curr) != NULL;
1864        curr = &(*curr)->next);
1865   (*curr) = XMALLOC (struct gdbarch_data_registration);
1866   (*curr)->next = NULL;
1867   (*curr)->data = XMALLOC (struct gdbarch_data);
1868   (*curr)->data->index = gdbarch_data_registry.nr++;
1869   (*curr)->data->init = init;
1870   (*curr)->data->init_p = 1;
1871   (*curr)->data->free = free;
1872   return (*curr)->data;
1873 }
1874
1875
1876 /* Create/delete the gdbarch data vector. */
1877
1878 static void
1879 alloc_gdbarch_data (struct gdbarch *gdbarch)
1880 {
1881   gdb_assert (gdbarch->data == NULL);
1882   gdbarch->nr_data = gdbarch_data_registry.nr;
1883   gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1884 }
1885
1886 static void
1887 free_gdbarch_data (struct gdbarch *gdbarch)
1888 {
1889   struct gdbarch_data_registration *rego;
1890   gdb_assert (gdbarch->data != NULL);
1891   for (rego = gdbarch_data_registry.registrations;
1892        rego != NULL;
1893        rego = rego->next)
1894     {
1895       struct gdbarch_data *data = rego->data;
1896       gdb_assert (data->index < gdbarch->nr_data);
1897       if (data->free != NULL && gdbarch->data[data->index] != NULL)
1898         {
1899           data->free (gdbarch, gdbarch->data[data->index]);
1900           gdbarch->data[data->index] = NULL;
1901         }
1902     }
1903   xfree (gdbarch->data);
1904   gdbarch->data = NULL;
1905 }
1906
1907
1908 /* Initialize the current value of the specified per-architecture
1909    data-pointer. */
1910
1911 void
1912 set_gdbarch_data (struct gdbarch *gdbarch,
1913                   struct gdbarch_data *data,
1914                   void *pointer)
1915 {
1916   gdb_assert (data->index < gdbarch->nr_data);
1917   if (gdbarch->data[data->index] != NULL)
1918     {
1919       gdb_assert (data->free != NULL);
1920       data->free (gdbarch, gdbarch->data[data->index]);
1921     }
1922   gdbarch->data[data->index] = pointer;
1923 }
1924
1925 /* Return the current value of the specified per-architecture
1926    data-pointer. */
1927
1928 void *
1929 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1930 {
1931   gdb_assert (data->index < gdbarch->nr_data);
1932   /* The data-pointer isn't initialized, call init() to get a value but
1933      only if the architecture initializaiton has completed.  Otherwise
1934      punt - hope that the caller knows what they are doing.  */
1935   if (gdbarch->data[data->index] == NULL
1936       && gdbarch->initialized_p)
1937     {
1938       /* Be careful to detect an initialization cycle.  */
1939       gdb_assert (data->init_p);
1940       data->init_p = 0;
1941       gdb_assert (data->init != NULL);
1942       gdbarch->data[data->index] = data->init (gdbarch);
1943       data->init_p = 1;
1944       gdb_assert (gdbarch->data[data->index] != NULL);
1945     }
1946   return gdbarch->data[data->index];
1947 }
1948
1949
1950
1951 /* Keep a registry of swapped data required by GDB modules. */
1952
1953 struct gdbarch_swap
1954 {
1955   void *swap;
1956   struct gdbarch_swap_registration *source;
1957   struct gdbarch_swap *next;
1958 };
1959
1960 struct gdbarch_swap_registration
1961 {
1962   void *data;
1963   unsigned long sizeof_data;
1964   gdbarch_swap_ftype *init;
1965   struct gdbarch_swap_registration *next;
1966 };
1967
1968 struct gdbarch_swap_registry
1969 {
1970   int nr;
1971   struct gdbarch_swap_registration *registrations;
1972 };
1973
1974 struct gdbarch_swap_registry gdbarch_swap_registry =
1975 {
1976   0, NULL,
1977 };
1978
1979 void
1980 register_gdbarch_swap (void *data,
1981                        unsigned long sizeof_data,
1982                        gdbarch_swap_ftype *init)
1983 {
1984   struct gdbarch_swap_registration **rego;
1985   for (rego = &gdbarch_swap_registry.registrations;
1986        (*rego) != NULL;
1987        rego = &(*rego)->next);
1988   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1989   (*rego)->next = NULL;
1990   (*rego)->init = init;
1991   (*rego)->data = data;
1992   (*rego)->sizeof_data = sizeof_data;
1993 }
1994
1995 static void
1996 clear_gdbarch_swap (struct gdbarch *gdbarch)
1997 {
1998   struct gdbarch_swap *curr;
1999   for (curr = gdbarch->swap;
2000        curr != NULL;
2001        curr = curr->next)
2002     {
2003       memset (curr->source->data, 0, curr->source->sizeof_data);
2004     }
2005 }
2006
2007 static void
2008 init_gdbarch_swap (struct gdbarch *gdbarch)
2009 {
2010   struct gdbarch_swap_registration *rego;
2011   struct gdbarch_swap **curr = &gdbarch->swap;
2012   for (rego = gdbarch_swap_registry.registrations;
2013        rego != NULL;
2014        rego = rego->next)
2015     {
2016       if (rego->data != NULL)
2017         {
2018           (*curr) = XMALLOC (struct gdbarch_swap);
2019           (*curr)->source = rego;
2020           (*curr)->swap = xmalloc (rego->sizeof_data);
2021           (*curr)->next = NULL;
2022           curr = &(*curr)->next;
2023         }
2024       if (rego->init != NULL)
2025         rego->init ();
2026     }
2027 }
2028
2029 static void
2030 swapout_gdbarch_swap (struct gdbarch *gdbarch)
2031 {
2032   struct gdbarch_swap *curr;
2033   for (curr = gdbarch->swap;
2034        curr != NULL;
2035        curr = curr->next)
2036     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
2037 }
2038
2039 static void
2040 swapin_gdbarch_swap (struct gdbarch *gdbarch)
2041 {
2042   struct gdbarch_swap *curr;
2043   for (curr = gdbarch->swap;
2044        curr != NULL;
2045        curr = curr->next)
2046     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2047 }
2048
2049
2050 /* Keep a registry of the architectures known by GDB. */
2051
2052 struct gdbarch_registration
2053 {
2054   enum bfd_architecture bfd_architecture;
2055   gdbarch_init_ftype *init;
2056   gdbarch_dump_tdep_ftype *dump_tdep;
2057   struct gdbarch_list *arches;
2058   struct gdbarch_registration *next;
2059 };
2060
2061 static struct gdbarch_registration *gdbarch_registry = NULL;
2062
2063 static void
2064 append_name (const char ***buf, int *nr, const char *name)
2065 {
2066   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2067   (*buf)[*nr] = name;
2068   *nr += 1;
2069 }
2070
2071 const char **
2072 gdbarch_printable_names (void)
2073 {
2074   if (GDB_MULTI_ARCH)
2075     {
2076       /* Accumulate a list of names based on the registed list of
2077          architectures. */
2078       enum bfd_architecture a;
2079       int nr_arches = 0;
2080       const char **arches = NULL;
2081       struct gdbarch_registration *rego;
2082       for (rego = gdbarch_registry;
2083            rego != NULL;
2084            rego = rego->next)
2085         {
2086           const struct bfd_arch_info *ap;
2087           ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2088           if (ap == NULL)
2089             internal_error (__FILE__, __LINE__,
2090                             "gdbarch_architecture_names: multi-arch unknown");
2091           do
2092             {
2093               append_name (&arches, &nr_arches, ap->printable_name);
2094               ap = ap->next;
2095             }
2096           while (ap != NULL);
2097         }
2098       append_name (&arches, &nr_arches, NULL);
2099       return arches;
2100     }
2101   else
2102     /* Just return all the architectures that BFD knows.  Assume that
2103        the legacy architecture framework supports them. */
2104     return bfd_arch_list ();
2105 }
2106
2107
2108 void
2109 gdbarch_register (enum bfd_architecture bfd_architecture,
2110                   gdbarch_init_ftype *init,
2111                   gdbarch_dump_tdep_ftype *dump_tdep)
2112 {
2113   struct gdbarch_registration **curr;
2114   const struct bfd_arch_info *bfd_arch_info;
2115   /* Check that BFD recognizes this architecture */
2116   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2117   if (bfd_arch_info == NULL)
2118     {
2119       internal_error (__FILE__, __LINE__,
2120                       "gdbarch: Attempt to register unknown architecture (%d)",
2121                       bfd_architecture);
2122     }
2123   /* Check that we haven't seen this architecture before */
2124   for (curr = &gdbarch_registry;
2125        (*curr) != NULL;
2126        curr = &(*curr)->next)
2127     {
2128       if (bfd_architecture == (*curr)->bfd_architecture)
2129         internal_error (__FILE__, __LINE__,
2130                         "gdbarch: Duplicate registraration of architecture (%s)",
2131                         bfd_arch_info->printable_name);
2132     }
2133   /* log it */
2134   if (gdbarch_debug)
2135     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2136                         bfd_arch_info->printable_name,
2137                         (long) init);
2138   /* Append it */
2139   (*curr) = XMALLOC (struct gdbarch_registration);
2140   (*curr)->bfd_architecture = bfd_architecture;
2141   (*curr)->init = init;
2142   (*curr)->dump_tdep = dump_tdep;
2143   (*curr)->arches = NULL;
2144   (*curr)->next = NULL;
2145   /* When non- multi-arch, install whatever target dump routine we've
2146      been provided - hopefully that routine has been written correctly
2147      and works regardless of multi-arch. */
2148   if (!GDB_MULTI_ARCH && dump_tdep != NULL
2149       && startup_gdbarch.dump_tdep == NULL)
2150     startup_gdbarch.dump_tdep = dump_tdep;
2151 }
2152
2153 void
2154 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2155                        gdbarch_init_ftype *init)
2156 {
2157   gdbarch_register (bfd_architecture, init, NULL);
2158 }
2159
2160
2161 /* Look for an architecture using gdbarch_info.  Base search on only
2162    BFD_ARCH_INFO and BYTE_ORDER. */
2163
2164 struct gdbarch_list *
2165 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2166                              const struct gdbarch_info *info)
2167 {
2168   for (; arches != NULL; arches = arches->next)
2169     {
2170       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2171         continue;
2172       if (info->byte_order != arches->gdbarch->byte_order)
2173         continue;
2174       if (info->osabi != arches->gdbarch->osabi)
2175         continue;
2176       return arches;
2177     }
2178   return NULL;
2179 }
2180
2181
2182 /* Update the current architecture. Return ZERO if the update request
2183    failed. */
2184
2185 int
2186 gdbarch_update_p (struct gdbarch_info info)
2187 {
2188   struct gdbarch *new_gdbarch;
2189   struct gdbarch *old_gdbarch;
2190   struct gdbarch_registration *rego;
2191
2192   /* Fill in missing parts of the INFO struct using a number of
2193      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
2194
2195   /* \`\`(gdb) set architecture ...'' */
2196   if (info.bfd_arch_info == NULL
2197       && !TARGET_ARCHITECTURE_AUTO)
2198     info.bfd_arch_info = TARGET_ARCHITECTURE;
2199   if (info.bfd_arch_info == NULL
2200       && info.abfd != NULL
2201       && bfd_get_arch (info.abfd) != bfd_arch_unknown
2202       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2203     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2204   if (info.bfd_arch_info == NULL)
2205     info.bfd_arch_info = TARGET_ARCHITECTURE;
2206
2207   /* \`\`(gdb) set byte-order ...'' */
2208   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2209       && !TARGET_BYTE_ORDER_AUTO)
2210     info.byte_order = TARGET_BYTE_ORDER;
2211   /* From the INFO struct. */
2212   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2213       && info.abfd != NULL)
2214     info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2215                        : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2216                        : BFD_ENDIAN_UNKNOWN);
2217   /* From the current target. */
2218   if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2219     info.byte_order = TARGET_BYTE_ORDER;
2220
2221   /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi.  */
2222   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2223     info.osabi = gdbarch_lookup_osabi (info.abfd);
2224   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2225     info.osabi = current_gdbarch->osabi;
2226
2227   /* Must have found some sort of architecture. */
2228   gdb_assert (info.bfd_arch_info != NULL);
2229
2230   if (gdbarch_debug)
2231     {
2232       fprintf_unfiltered (gdb_stdlog,
2233                           "gdbarch_update: info.bfd_arch_info %s\n",
2234                           (info.bfd_arch_info != NULL
2235                            ? info.bfd_arch_info->printable_name
2236                            : "(null)"));
2237       fprintf_unfiltered (gdb_stdlog,
2238                           "gdbarch_update: info.byte_order %d (%s)\n",
2239                           info.byte_order,
2240                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2241                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2242                            : "default"));
2243       fprintf_unfiltered (gdb_stdlog,
2244                           "gdbarch_update: info.osabi %d (%s)\n",
2245                           info.osabi, gdbarch_osabi_name (info.osabi));
2246       fprintf_unfiltered (gdb_stdlog,
2247                           "gdbarch_update: info.abfd 0x%lx\n",
2248                           (long) info.abfd);
2249       fprintf_unfiltered (gdb_stdlog,
2250                           "gdbarch_update: info.tdep_info 0x%lx\n",
2251                           (long) info.tdep_info);
2252     }
2253
2254   /* Find the target that knows about this architecture. */
2255   for (rego = gdbarch_registry;
2256        rego != NULL;
2257        rego = rego->next)
2258     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2259       break;
2260   if (rego == NULL)
2261     {
2262       if (gdbarch_debug)
2263         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2264       return 0;
2265     }
2266
2267   /* Swap the data belonging to the old target out setting the
2268      installed data to zero.  This stops the ->init() function trying
2269      to refer to the previous architecture's global data structures.  */
2270   swapout_gdbarch_swap (current_gdbarch);
2271   clear_gdbarch_swap (current_gdbarch);
2272
2273   /* Save the previously selected architecture, setting the global to
2274      NULL.  This stops ->init() trying to use the previous
2275      architecture's configuration.  The previous architecture may not
2276      even be of the same architecture family.  The most recent
2277      architecture of the same family is found at the head of the
2278      rego->arches list.  */
2279   old_gdbarch = current_gdbarch;
2280   current_gdbarch = NULL;
2281
2282   /* Ask the target for a replacement architecture. */
2283   new_gdbarch = rego->init (info, rego->arches);
2284
2285   /* Did the target like it?  No. Reject the change and revert to the
2286      old architecture.  */
2287   if (new_gdbarch == NULL)
2288     {
2289       if (gdbarch_debug)
2290         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2291       swapin_gdbarch_swap (old_gdbarch);
2292       current_gdbarch = old_gdbarch;
2293       return 0;
2294     }
2295
2296   /* Did the architecture change?  No.  Oops, put the old architecture
2297      back.  */
2298   if (old_gdbarch == new_gdbarch)
2299     {
2300       if (gdbarch_debug)
2301         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2302                             (long) new_gdbarch,
2303                             new_gdbarch->bfd_arch_info->printable_name);
2304       swapin_gdbarch_swap (old_gdbarch);
2305       current_gdbarch = old_gdbarch;
2306       return 1;
2307     }
2308
2309   /* Is this a pre-existing architecture?  Yes. Move it to the front
2310      of the list of architectures (keeping the list sorted Most
2311      Recently Used) and then copy it in.  */
2312   {
2313     struct gdbarch_list **list;
2314     for (list = &rego->arches;
2315          (*list) != NULL;
2316          list = &(*list)->next)
2317       {
2318         if ((*list)->gdbarch == new_gdbarch)
2319           {
2320             struct gdbarch_list *this;
2321             if (gdbarch_debug)
2322               fprintf_unfiltered (gdb_stdlog,
2323                                   "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2324                                   (long) new_gdbarch,
2325                                   new_gdbarch->bfd_arch_info->printable_name);
2326             /* Unlink this.  */
2327             this = (*list);
2328             (*list) = this->next;
2329             /* Insert in the front.  */
2330             this->next = rego->arches;
2331             rego->arches = this;
2332             /* Copy the new architecture in.  */
2333             current_gdbarch = new_gdbarch;
2334             swapin_gdbarch_swap (new_gdbarch);
2335             architecture_changed_event ();
2336             return 1;
2337           }
2338       }
2339   }
2340
2341   /* Prepend this new architecture to the architecture list (keep the
2342      list sorted Most Recently Used).  */
2343   {
2344     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2345     this->next = rego->arches;
2346     this->gdbarch = new_gdbarch;
2347     rego->arches = this;
2348   }
2349
2350   /* Switch to this new architecture marking it initialized.  */
2351   current_gdbarch = new_gdbarch;
2352   current_gdbarch->initialized_p = 1;
2353   if (gdbarch_debug)
2354     {
2355       fprintf_unfiltered (gdb_stdlog,
2356                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2357                           (long) new_gdbarch,
2358                           new_gdbarch->bfd_arch_info->printable_name);
2359     }
2360
2361   /* Check that the newly installed architecture is valid.  Plug in
2362      any post init values.  */
2363   new_gdbarch->dump_tdep = rego->dump_tdep;
2364   verify_gdbarch (new_gdbarch);
2365
2366   /* Initialize the per-architecture memory (swap) areas.
2367      CURRENT_GDBARCH must be update before these modules are
2368      called. */
2369   init_gdbarch_swap (new_gdbarch);
2370
2371   /* Initialize the per-architecture data.  CURRENT_GDBARCH
2372      must be updated before these modules are called. */
2373   architecture_changed_event ();
2374
2375   if (gdbarch_debug)
2376     gdbarch_dump (current_gdbarch, gdb_stdlog);
2377
2378   return 1;
2379 }
2380
2381
2382 /* Disassembler */
2383
2384 /* Pointer to the target-dependent disassembly function.  */
2385 int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info *);
2386 disassemble_info tm_print_insn_info;
2387
2388
2389 extern void _initialize_gdbarch (void);
2390
2391 void
2392 _initialize_gdbarch (void)
2393 {
2394   struct cmd_list_element *c;
2395
2396   INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2397   tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2398   tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2399   tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2400   tm_print_insn_info.print_address_func = dis_asm_print_address;
2401
2402   add_show_from_set (add_set_cmd ("arch",
2403                                   class_maintenance,
2404                                   var_zinteger,
2405                                   (char *)&gdbarch_debug,
2406                                   "Set architecture debugging.\\n\\
2407 When non-zero, architecture debugging is enabled.", &setdebuglist),
2408                      &showdebuglist);
2409   c = add_set_cmd ("archdebug",
2410                    class_maintenance,
2411                    var_zinteger,
2412                    (char *)&gdbarch_debug,
2413                    "Set architecture debugging.\\n\\
2414 When non-zero, architecture debugging is enabled.", &setlist);
2415
2416   deprecate_cmd (c, "set debug arch");
2417   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2418 }
2419 EOF
2420
2421 # close things off
2422 exec 1>&2
2423 #../move-if-change new-gdbarch.c gdbarch.c
2424 compare_new gdbarch.c