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 /* Use gdb_disassemble, and gdbarch_print_insn instead.  */
1217 extern int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info*);
1218
1219 /* Use set_gdbarch_print_insn instead.  */
1220 extern disassemble_info deprecated_tm_print_insn_info;
1221
1222 /* Set the dynamic target-system-dependent parameters (architecture,
1223    byte-order, ...) using information found in the BFD */
1224
1225 extern void set_gdbarch_from_file (bfd *);
1226
1227
1228 /* Initialize the current architecture to the "first" one we find on
1229    our list.  */
1230
1231 extern void initialize_current_architecture (void);
1232
1233 /* For non-multiarched targets, do any initialization of the default
1234    gdbarch object necessary after the _initialize_MODULE functions
1235    have run.  */
1236 extern void initialize_non_multiarch (void);
1237
1238 /* gdbarch trace variable */
1239 extern int gdbarch_debug;
1240
1241 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1242
1243 #endif
1244 EOF
1245 exec 1>&2
1246 #../move-if-change new-gdbarch.h gdbarch.h
1247 compare_new gdbarch.h
1248
1249
1250 #
1251 # C file
1252 #
1253
1254 exec > new-gdbarch.c
1255 copyright
1256 cat <<EOF
1257
1258 #include "defs.h"
1259 #include "arch-utils.h"
1260
1261 #if GDB_MULTI_ARCH
1262 #include "gdbcmd.h"
1263 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1264 #else
1265 /* Just include everything in sight so that the every old definition
1266    of macro is visible. */
1267 #include "gdb_string.h"
1268 #include <ctype.h>
1269 #include "symtab.h"
1270 #include "frame.h"
1271 #include "inferior.h"
1272 #include "breakpoint.h"
1273 #include "gdb_wait.h"
1274 #include "gdbcore.h"
1275 #include "gdbcmd.h"
1276 #include "target.h"
1277 #include "gdbthread.h"
1278 #include "annotate.h"
1279 #include "symfile.h"            /* for overlay functions */
1280 #include "value.h"              /* For old tm.h/nm.h macros.  */
1281 #endif
1282 #include "symcat.h"
1283
1284 #include "floatformat.h"
1285
1286 #include "gdb_assert.h"
1287 #include "gdb_string.h"
1288 #include "gdb-events.h"
1289 #include "reggroups.h"
1290 #include "osabi.h"
1291 #include "symfile.h"            /* For entry_point_address.  */
1292
1293 /* Static function declarations */
1294
1295 static void verify_gdbarch (struct gdbarch *gdbarch);
1296 static void alloc_gdbarch_data (struct gdbarch *);
1297 static void free_gdbarch_data (struct gdbarch *);
1298 static void init_gdbarch_swap (struct gdbarch *);
1299 static void clear_gdbarch_swap (struct gdbarch *);
1300 static void swapout_gdbarch_swap (struct gdbarch *);
1301 static void swapin_gdbarch_swap (struct gdbarch *);
1302
1303 /* Non-zero if we want to trace architecture code.  */
1304
1305 #ifndef GDBARCH_DEBUG
1306 #define GDBARCH_DEBUG 0
1307 #endif
1308 int gdbarch_debug = GDBARCH_DEBUG;
1309
1310 EOF
1311
1312 # gdbarch open the gdbarch object
1313 printf "\n"
1314 printf "/* Maintain the struct gdbarch object */\n"
1315 printf "\n"
1316 printf "struct gdbarch\n"
1317 printf "{\n"
1318 printf "  /* Has this architecture been fully initialized?  */\n"
1319 printf "  int initialized_p;\n"
1320 printf "  /* basic architectural information */\n"
1321 function_list | while do_read
1322 do
1323     if class_is_info_p
1324     then
1325         printf "  ${returntype} ${function};\n"
1326     fi
1327 done
1328 printf "\n"
1329 printf "  /* target specific vector. */\n"
1330 printf "  struct gdbarch_tdep *tdep;\n"
1331 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1332 printf "\n"
1333 printf "  /* per-architecture data-pointers */\n"
1334 printf "  unsigned nr_data;\n"
1335 printf "  void **data;\n"
1336 printf "\n"
1337 printf "  /* per-architecture swap-regions */\n"
1338 printf "  struct gdbarch_swap *swap;\n"
1339 printf "\n"
1340 cat <<EOF
1341   /* Multi-arch values.
1342
1343      When extending this structure you must:
1344
1345      Add the field below.
1346
1347      Declare set/get functions and define the corresponding
1348      macro in gdbarch.h.
1349
1350      gdbarch_alloc(): If zero/NULL is not a suitable default,
1351      initialize the new field.
1352
1353      verify_gdbarch(): Confirm that the target updated the field
1354      correctly.
1355
1356      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1357      field is dumped out
1358
1359      \`\`startup_gdbarch()'': Append an initial value to the static
1360      variable (base values on the host's c-type system).
1361
1362      get_gdbarch(): Implement the set/get functions (probably using
1363      the macro's as shortcuts).
1364
1365      */
1366
1367 EOF
1368 function_list | while do_read
1369 do
1370     if class_is_variable_p
1371     then
1372         printf "  ${returntype} ${function};\n"
1373     elif class_is_function_p
1374     then
1375         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1376     fi
1377 done
1378 printf "};\n"
1379
1380 # A pre-initialized vector
1381 printf "\n"
1382 printf "\n"
1383 cat <<EOF
1384 /* The default architecture uses host values (for want of a better
1385    choice). */
1386 EOF
1387 printf "\n"
1388 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1389 printf "\n"
1390 printf "struct gdbarch startup_gdbarch =\n"
1391 printf "{\n"
1392 printf "  1, /* Always initialized.  */\n"
1393 printf "  /* basic architecture information */\n"
1394 function_list | while do_read
1395 do
1396     if class_is_info_p
1397     then
1398         printf "  ${staticdefault},\n"
1399     fi
1400 done
1401 cat <<EOF
1402   /* target specific vector and its dump routine */
1403   NULL, NULL,
1404   /*per-architecture data-pointers and swap regions */
1405   0, NULL, NULL,
1406   /* Multi-arch values */
1407 EOF
1408 function_list | while do_read
1409 do
1410     if class_is_function_p || class_is_variable_p
1411     then
1412         printf "  ${staticdefault},\n"
1413     fi
1414 done
1415 cat <<EOF
1416   /* startup_gdbarch() */
1417 };
1418
1419 struct gdbarch *current_gdbarch = &startup_gdbarch;
1420
1421 /* Do any initialization needed for a non-multiarch configuration
1422    after the _initialize_MODULE functions have been run.  */
1423 void
1424 initialize_non_multiarch (void)
1425 {
1426   alloc_gdbarch_data (&startup_gdbarch);
1427   /* Ensure that all swap areas are zeroed so that they again think
1428      they are starting from scratch.  */
1429   clear_gdbarch_swap (&startup_gdbarch);
1430   init_gdbarch_swap (&startup_gdbarch);
1431 }
1432 EOF
1433
1434 # Create a new gdbarch struct
1435 printf "\n"
1436 printf "\n"
1437 cat <<EOF
1438 /* Create a new \`\`struct gdbarch'' based on information provided by
1439    \`\`struct gdbarch_info''. */
1440 EOF
1441 printf "\n"
1442 cat <<EOF
1443 struct gdbarch *
1444 gdbarch_alloc (const struct gdbarch_info *info,
1445                struct gdbarch_tdep *tdep)
1446 {
1447   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1448      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1449      the current local architecture and not the previous global
1450      architecture.  This ensures that the new architectures initial
1451      values are not influenced by the previous architecture.  Once
1452      everything is parameterised with gdbarch, this will go away.  */
1453   struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1454   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1455
1456   alloc_gdbarch_data (current_gdbarch);
1457
1458   current_gdbarch->tdep = tdep;
1459 EOF
1460 printf "\n"
1461 function_list | while do_read
1462 do
1463     if class_is_info_p
1464     then
1465         printf "  current_gdbarch->${function} = info->${function};\n"
1466     fi
1467 done
1468 printf "\n"
1469 printf "  /* Force the explicit initialization of these. */\n"
1470 function_list | while do_read
1471 do
1472     if class_is_function_p || class_is_variable_p
1473     then
1474         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1475         then
1476           printf "  current_gdbarch->${function} = ${predefault};\n"
1477         fi
1478     fi
1479 done
1480 cat <<EOF
1481   /* gdbarch_alloc() */
1482
1483   return current_gdbarch;
1484 }
1485 EOF
1486
1487 # Free a gdbarch struct.
1488 printf "\n"
1489 printf "\n"
1490 cat <<EOF
1491 /* Free a gdbarch struct.  This should never happen in normal
1492    operation --- once you've created a gdbarch, you keep it around.
1493    However, if an architecture's init function encounters an error
1494    building the structure, it may need to clean up a partially
1495    constructed gdbarch.  */
1496
1497 void
1498 gdbarch_free (struct gdbarch *arch)
1499 {
1500   gdb_assert (arch != NULL);
1501   free_gdbarch_data (arch);
1502   xfree (arch);
1503 }
1504 EOF
1505
1506 # verify a new architecture
1507 printf "\n"
1508 printf "\n"
1509 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1510 printf "\n"
1511 cat <<EOF
1512 static void
1513 verify_gdbarch (struct gdbarch *gdbarch)
1514 {
1515   struct ui_file *log;
1516   struct cleanup *cleanups;
1517   long dummy;
1518   char *buf;
1519   /* Only perform sanity checks on a multi-arch target. */
1520   if (!GDB_MULTI_ARCH)
1521     return;
1522   log = mem_fileopen ();
1523   cleanups = make_cleanup_ui_file_delete (log);
1524   /* fundamental */
1525   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1526     fprintf_unfiltered (log, "\n\tbyte-order");
1527   if (gdbarch->bfd_arch_info == NULL)
1528     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1529   /* Check those that need to be defined for the given multi-arch level. */
1530 EOF
1531 function_list | while do_read
1532 do
1533     if class_is_function_p || class_is_variable_p
1534     then
1535         if [ "x${invalid_p}" = "x0" ]
1536         then
1537             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1538         elif class_is_predicate_p
1539         then
1540             printf "  /* Skip verify of ${function}, has predicate */\n"
1541         # FIXME: See do_read for potential simplification
1542         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1543         then
1544             printf "  if (${invalid_p})\n"
1545             printf "    gdbarch->${function} = ${postdefault};\n"
1546         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1547         then
1548             printf "  if (gdbarch->${function} == ${predefault})\n"
1549             printf "    gdbarch->${function} = ${postdefault};\n"
1550         elif [ -n "${postdefault}" ]
1551         then
1552             printf "  if (gdbarch->${function} == 0)\n"
1553             printf "    gdbarch->${function} = ${postdefault};\n"
1554         elif [ -n "${invalid_p}" ]
1555         then
1556             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1557             printf "      && (${invalid_p}))\n"
1558             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1559         elif [ -n "${predefault}" ]
1560         then
1561             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1562             printf "      && (gdbarch->${function} == ${predefault}))\n"
1563             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1564         fi
1565     fi
1566 done
1567 cat <<EOF
1568   buf = ui_file_xstrdup (log, &dummy);
1569   make_cleanup (xfree, buf);
1570   if (strlen (buf) > 0)
1571     internal_error (__FILE__, __LINE__,
1572                     "verify_gdbarch: the following are invalid ...%s",
1573                     buf);
1574   do_cleanups (cleanups);
1575 }
1576 EOF
1577
1578 # dump the structure
1579 printf "\n"
1580 printf "\n"
1581 cat <<EOF
1582 /* Print out the details of the current architecture. */
1583
1584 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1585    just happens to match the global variable \`\`current_gdbarch''.  That
1586    way macros refering to that variable get the local and not the global
1587    version - ulgh.  Once everything is parameterised with gdbarch, this
1588    will go away. */
1589
1590 void
1591 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1592 {
1593   fprintf_unfiltered (file,
1594                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1595                       GDB_MULTI_ARCH);
1596 EOF
1597 function_list | sort -t: -k 3 | while do_read
1598 do
1599     # First the predicate
1600     if class_is_predicate_p
1601     then
1602         if class_is_multiarch_p
1603         then
1604             printf "  if (GDB_MULTI_ARCH)\n"
1605             printf "    fprintf_unfiltered (file,\n"
1606             printf "                        \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1607             printf "                        gdbarch_${function}_p (current_gdbarch));\n"
1608         else
1609             printf "#ifdef ${macro}_P\n"
1610             printf "  fprintf_unfiltered (file,\n"
1611             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1612             printf "                      \"${macro}_P()\",\n"
1613             printf "                      XSTRING (${macro}_P ()));\n"
1614             printf "  fprintf_unfiltered (file,\n"
1615             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1616             printf "                      ${macro}_P ());\n"
1617             printf "#endif\n"
1618         fi
1619     fi
1620     # multiarch functions don't have macros.
1621     if class_is_multiarch_p
1622     then
1623         printf "  if (GDB_MULTI_ARCH)\n"
1624         printf "    fprintf_unfiltered (file,\n"
1625         printf "                        \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1626         printf "                        (long) current_gdbarch->${function});\n"
1627         continue
1628     fi
1629     # Print the macro definition.
1630     printf "#ifdef ${macro}\n"
1631     if [ "x${returntype}" = "xvoid" ]
1632     then
1633         printf "#if GDB_MULTI_ARCH\n"
1634         printf "  /* Macro might contain \`[{}]' when not multi-arch */\n"
1635     fi
1636     if class_is_function_p
1637     then
1638         printf "  fprintf_unfiltered (file,\n"
1639         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1640         printf "                      \"${macro}(${actual})\",\n"
1641         printf "                      XSTRING (${macro} (${actual})));\n"
1642     else
1643         printf "  fprintf_unfiltered (file,\n"
1644         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1645         printf "                      XSTRING (${macro}));\n"
1646     fi
1647     # Print the architecture vector value
1648     if [ "x${returntype}" = "xvoid" ]
1649     then
1650         printf "#endif\n"
1651     fi
1652     if [ "x${print_p}" = "x()" ]
1653     then
1654         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1655     elif [ "x${print_p}" = "x0" ]
1656     then
1657         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1658     elif [ -n "${print_p}" ]
1659     then
1660         printf "  if (${print_p})\n"
1661         printf "    fprintf_unfiltered (file,\n"
1662         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1663         printf "                        ${print});\n"
1664     elif class_is_function_p
1665     then
1666         printf "  if (GDB_MULTI_ARCH)\n"
1667         printf "    fprintf_unfiltered (file,\n"
1668         printf "                        \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1669         printf "                        (long) current_gdbarch->${function}\n"
1670         printf "                        /*${macro} ()*/);\n"
1671     else
1672         printf "  fprintf_unfiltered (file,\n"
1673         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1674         printf "                      ${print});\n"
1675     fi
1676     printf "#endif\n"
1677 done
1678 cat <<EOF
1679   if (current_gdbarch->dump_tdep != NULL)
1680     current_gdbarch->dump_tdep (current_gdbarch, file);
1681 }
1682 EOF
1683
1684
1685 # GET/SET
1686 printf "\n"
1687 cat <<EOF
1688 struct gdbarch_tdep *
1689 gdbarch_tdep (struct gdbarch *gdbarch)
1690 {
1691   if (gdbarch_debug >= 2)
1692     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1693   return gdbarch->tdep;
1694 }
1695 EOF
1696 printf "\n"
1697 function_list | while do_read
1698 do
1699     if class_is_predicate_p
1700     then
1701         printf "\n"
1702         printf "int\n"
1703         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1704         printf "{\n"
1705         printf "  gdb_assert (gdbarch != NULL);\n"
1706         if [ -n "${predicate}" ]
1707         then
1708             printf "  return ${predicate};\n"
1709         else
1710             printf "  return gdbarch->${function} != 0;\n"
1711         fi
1712         printf "}\n"
1713     fi
1714     if class_is_function_p
1715     then
1716         printf "\n"
1717         printf "${returntype}\n"
1718         if [ "x${formal}" = "xvoid" ]
1719         then
1720           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1721         else
1722           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1723         fi
1724         printf "{\n"
1725         printf "  gdb_assert (gdbarch != NULL);\n"
1726         printf "  if (gdbarch->${function} == 0)\n"
1727         printf "    internal_error (__FILE__, __LINE__,\n"
1728         printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1729         if class_is_predicate_p && test -n "${predicate}"
1730         then
1731             # Allow a call to a function with a predicate.
1732             printf "  /* Ignore predicate (${predicate}).  */\n"
1733         fi
1734         printf "  if (gdbarch_debug >= 2)\n"
1735         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1736         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1737         then
1738             if class_is_multiarch_p
1739             then
1740                 params="gdbarch"
1741             else
1742                 params=""
1743             fi
1744         else
1745             if class_is_multiarch_p
1746             then
1747                 params="gdbarch, ${actual}"
1748             else
1749                 params="${actual}"
1750             fi
1751         fi
1752         if [ "x${returntype}" = "xvoid" ]
1753         then
1754           printf "  gdbarch->${function} (${params});\n"
1755         else
1756           printf "  return gdbarch->${function} (${params});\n"
1757         fi
1758         printf "}\n"
1759         printf "\n"
1760         printf "void\n"
1761         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1762         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1763         printf "{\n"
1764         printf "  gdbarch->${function} = ${function};\n"
1765         printf "}\n"
1766     elif class_is_variable_p
1767     then
1768         printf "\n"
1769         printf "${returntype}\n"
1770         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1771         printf "{\n"
1772         printf "  gdb_assert (gdbarch != NULL);\n"
1773         if [ "x${invalid_p}" = "x0" ]
1774         then
1775             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1776         elif [ -n "${invalid_p}" ]
1777         then
1778           printf "  if (${invalid_p})\n"
1779           printf "    internal_error (__FILE__, __LINE__,\n"
1780           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1781         elif [ -n "${predefault}" ]
1782         then
1783           printf "  if (gdbarch->${function} == ${predefault})\n"
1784           printf "    internal_error (__FILE__, __LINE__,\n"
1785           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1786         fi
1787         printf "  if (gdbarch_debug >= 2)\n"
1788         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1789         printf "  return gdbarch->${function};\n"
1790         printf "}\n"
1791         printf "\n"
1792         printf "void\n"
1793         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1794         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1795         printf "{\n"
1796         printf "  gdbarch->${function} = ${function};\n"
1797         printf "}\n"
1798     elif class_is_info_p
1799     then
1800         printf "\n"
1801         printf "${returntype}\n"
1802         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1803         printf "{\n"
1804         printf "  gdb_assert (gdbarch != NULL);\n"
1805         printf "  if (gdbarch_debug >= 2)\n"
1806         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1807         printf "  return gdbarch->${function};\n"
1808         printf "}\n"
1809     fi
1810 done
1811
1812 # All the trailing guff
1813 cat <<EOF
1814
1815
1816 /* Keep a registry of per-architecture data-pointers required by GDB
1817    modules. */
1818
1819 struct gdbarch_data
1820 {
1821   unsigned index;
1822   int init_p;
1823   gdbarch_data_init_ftype *init;
1824   gdbarch_data_free_ftype *free;
1825 };
1826
1827 struct gdbarch_data_registration
1828 {
1829   struct gdbarch_data *data;
1830   struct gdbarch_data_registration *next;
1831 };
1832
1833 struct gdbarch_data_registry
1834 {
1835   unsigned nr;
1836   struct gdbarch_data_registration *registrations;
1837 };
1838
1839 struct gdbarch_data_registry gdbarch_data_registry =
1840 {
1841   0, NULL,
1842 };
1843
1844 struct gdbarch_data *
1845 register_gdbarch_data (gdbarch_data_init_ftype *init,
1846                        gdbarch_data_free_ftype *free)
1847 {
1848   struct gdbarch_data_registration **curr;
1849   /* Append the new registraration.  */
1850   for (curr = &gdbarch_data_registry.registrations;
1851        (*curr) != NULL;
1852        curr = &(*curr)->next);
1853   (*curr) = XMALLOC (struct gdbarch_data_registration);
1854   (*curr)->next = NULL;
1855   (*curr)->data = XMALLOC (struct gdbarch_data);
1856   (*curr)->data->index = gdbarch_data_registry.nr++;
1857   (*curr)->data->init = init;
1858   (*curr)->data->init_p = 1;
1859   (*curr)->data->free = free;
1860   return (*curr)->data;
1861 }
1862
1863
1864 /* Create/delete the gdbarch data vector. */
1865
1866 static void
1867 alloc_gdbarch_data (struct gdbarch *gdbarch)
1868 {
1869   gdb_assert (gdbarch->data == NULL);
1870   gdbarch->nr_data = gdbarch_data_registry.nr;
1871   gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1872 }
1873
1874 static void
1875 free_gdbarch_data (struct gdbarch *gdbarch)
1876 {
1877   struct gdbarch_data_registration *rego;
1878   gdb_assert (gdbarch->data != NULL);
1879   for (rego = gdbarch_data_registry.registrations;
1880        rego != NULL;
1881        rego = rego->next)
1882     {
1883       struct gdbarch_data *data = rego->data;
1884       gdb_assert (data->index < gdbarch->nr_data);
1885       if (data->free != NULL && gdbarch->data[data->index] != NULL)
1886         {
1887           data->free (gdbarch, gdbarch->data[data->index]);
1888           gdbarch->data[data->index] = NULL;
1889         }
1890     }
1891   xfree (gdbarch->data);
1892   gdbarch->data = NULL;
1893 }
1894
1895
1896 /* Initialize the current value of the specified per-architecture
1897    data-pointer. */
1898
1899 void
1900 set_gdbarch_data (struct gdbarch *gdbarch,
1901                   struct gdbarch_data *data,
1902                   void *pointer)
1903 {
1904   gdb_assert (data->index < gdbarch->nr_data);
1905   if (gdbarch->data[data->index] != NULL)
1906     {
1907       gdb_assert (data->free != NULL);
1908       data->free (gdbarch, gdbarch->data[data->index]);
1909     }
1910   gdbarch->data[data->index] = pointer;
1911 }
1912
1913 /* Return the current value of the specified per-architecture
1914    data-pointer. */
1915
1916 void *
1917 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1918 {
1919   gdb_assert (data->index < gdbarch->nr_data);
1920   /* The data-pointer isn't initialized, call init() to get a value but
1921      only if the architecture initializaiton has completed.  Otherwise
1922      punt - hope that the caller knows what they are doing.  */
1923   if (gdbarch->data[data->index] == NULL
1924       && gdbarch->initialized_p)
1925     {
1926       /* Be careful to detect an initialization cycle.  */
1927       gdb_assert (data->init_p);
1928       data->init_p = 0;
1929       gdb_assert (data->init != NULL);
1930       gdbarch->data[data->index] = data->init (gdbarch);
1931       data->init_p = 1;
1932       gdb_assert (gdbarch->data[data->index] != NULL);
1933     }
1934   return gdbarch->data[data->index];
1935 }
1936
1937
1938
1939 /* Keep a registry of swapped data required by GDB modules. */
1940
1941 struct gdbarch_swap
1942 {
1943   void *swap;
1944   struct gdbarch_swap_registration *source;
1945   struct gdbarch_swap *next;
1946 };
1947
1948 struct gdbarch_swap_registration
1949 {
1950   void *data;
1951   unsigned long sizeof_data;
1952   gdbarch_swap_ftype *init;
1953   struct gdbarch_swap_registration *next;
1954 };
1955
1956 struct gdbarch_swap_registry
1957 {
1958   int nr;
1959   struct gdbarch_swap_registration *registrations;
1960 };
1961
1962 struct gdbarch_swap_registry gdbarch_swap_registry =
1963 {
1964   0, NULL,
1965 };
1966
1967 void
1968 register_gdbarch_swap (void *data,
1969                        unsigned long sizeof_data,
1970                        gdbarch_swap_ftype *init)
1971 {
1972   struct gdbarch_swap_registration **rego;
1973   for (rego = &gdbarch_swap_registry.registrations;
1974        (*rego) != NULL;
1975        rego = &(*rego)->next);
1976   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1977   (*rego)->next = NULL;
1978   (*rego)->init = init;
1979   (*rego)->data = data;
1980   (*rego)->sizeof_data = sizeof_data;
1981 }
1982
1983 static void
1984 clear_gdbarch_swap (struct gdbarch *gdbarch)
1985 {
1986   struct gdbarch_swap *curr;
1987   for (curr = gdbarch->swap;
1988        curr != NULL;
1989        curr = curr->next)
1990     {
1991       memset (curr->source->data, 0, curr->source->sizeof_data);
1992     }
1993 }
1994
1995 static void
1996 init_gdbarch_swap (struct gdbarch *gdbarch)
1997 {
1998   struct gdbarch_swap_registration *rego;
1999   struct gdbarch_swap **curr = &gdbarch->swap;
2000   for (rego = gdbarch_swap_registry.registrations;
2001        rego != NULL;
2002        rego = rego->next)
2003     {
2004       if (rego->data != NULL)
2005         {
2006           (*curr) = XMALLOC (struct gdbarch_swap);
2007           (*curr)->source = rego;
2008           (*curr)->swap = xmalloc (rego->sizeof_data);
2009           (*curr)->next = NULL;
2010           curr = &(*curr)->next;
2011         }
2012       if (rego->init != NULL)
2013         rego->init ();
2014     }
2015 }
2016
2017 static void
2018 swapout_gdbarch_swap (struct gdbarch *gdbarch)
2019 {
2020   struct gdbarch_swap *curr;
2021   for (curr = gdbarch->swap;
2022        curr != NULL;
2023        curr = curr->next)
2024     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
2025 }
2026
2027 static void
2028 swapin_gdbarch_swap (struct gdbarch *gdbarch)
2029 {
2030   struct gdbarch_swap *curr;
2031   for (curr = gdbarch->swap;
2032        curr != NULL;
2033        curr = curr->next)
2034     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2035 }
2036
2037
2038 /* Keep a registry of the architectures known by GDB. */
2039
2040 struct gdbarch_registration
2041 {
2042   enum bfd_architecture bfd_architecture;
2043   gdbarch_init_ftype *init;
2044   gdbarch_dump_tdep_ftype *dump_tdep;
2045   struct gdbarch_list *arches;
2046   struct gdbarch_registration *next;
2047 };
2048
2049 static struct gdbarch_registration *gdbarch_registry = NULL;
2050
2051 static void
2052 append_name (const char ***buf, int *nr, const char *name)
2053 {
2054   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2055   (*buf)[*nr] = name;
2056   *nr += 1;
2057 }
2058
2059 const char **
2060 gdbarch_printable_names (void)
2061 {
2062   if (GDB_MULTI_ARCH)
2063     {
2064       /* Accumulate a list of names based on the registed list of
2065          architectures. */
2066       enum bfd_architecture a;
2067       int nr_arches = 0;
2068       const char **arches = NULL;
2069       struct gdbarch_registration *rego;
2070       for (rego = gdbarch_registry;
2071            rego != NULL;
2072            rego = rego->next)
2073         {
2074           const struct bfd_arch_info *ap;
2075           ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2076           if (ap == NULL)
2077             internal_error (__FILE__, __LINE__,
2078                             "gdbarch_architecture_names: multi-arch unknown");
2079           do
2080             {
2081               append_name (&arches, &nr_arches, ap->printable_name);
2082               ap = ap->next;
2083             }
2084           while (ap != NULL);
2085         }
2086       append_name (&arches, &nr_arches, NULL);
2087       return arches;
2088     }
2089   else
2090     /* Just return all the architectures that BFD knows.  Assume that
2091        the legacy architecture framework supports them. */
2092     return bfd_arch_list ();
2093 }
2094
2095
2096 void
2097 gdbarch_register (enum bfd_architecture bfd_architecture,
2098                   gdbarch_init_ftype *init,
2099                   gdbarch_dump_tdep_ftype *dump_tdep)
2100 {
2101   struct gdbarch_registration **curr;
2102   const struct bfd_arch_info *bfd_arch_info;
2103   /* Check that BFD recognizes this architecture */
2104   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2105   if (bfd_arch_info == NULL)
2106     {
2107       internal_error (__FILE__, __LINE__,
2108                       "gdbarch: Attempt to register unknown architecture (%d)",
2109                       bfd_architecture);
2110     }
2111   /* Check that we haven't seen this architecture before */
2112   for (curr = &gdbarch_registry;
2113        (*curr) != NULL;
2114        curr = &(*curr)->next)
2115     {
2116       if (bfd_architecture == (*curr)->bfd_architecture)
2117         internal_error (__FILE__, __LINE__,
2118                         "gdbarch: Duplicate registraration of architecture (%s)",
2119                         bfd_arch_info->printable_name);
2120     }
2121   /* log it */
2122   if (gdbarch_debug)
2123     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2124                         bfd_arch_info->printable_name,
2125                         (long) init);
2126   /* Append it */
2127   (*curr) = XMALLOC (struct gdbarch_registration);
2128   (*curr)->bfd_architecture = bfd_architecture;
2129   (*curr)->init = init;
2130   (*curr)->dump_tdep = dump_tdep;
2131   (*curr)->arches = NULL;
2132   (*curr)->next = NULL;
2133   /* When non- multi-arch, install whatever target dump routine we've
2134      been provided - hopefully that routine has been written correctly
2135      and works regardless of multi-arch. */
2136   if (!GDB_MULTI_ARCH && dump_tdep != NULL
2137       && startup_gdbarch.dump_tdep == NULL)
2138     startup_gdbarch.dump_tdep = dump_tdep;
2139 }
2140
2141 void
2142 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2143                        gdbarch_init_ftype *init)
2144 {
2145   gdbarch_register (bfd_architecture, init, NULL);
2146 }
2147
2148
2149 /* Look for an architecture using gdbarch_info.  Base search on only
2150    BFD_ARCH_INFO and BYTE_ORDER. */
2151
2152 struct gdbarch_list *
2153 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2154                              const struct gdbarch_info *info)
2155 {
2156   for (; arches != NULL; arches = arches->next)
2157     {
2158       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2159         continue;
2160       if (info->byte_order != arches->gdbarch->byte_order)
2161         continue;
2162       if (info->osabi != arches->gdbarch->osabi)
2163         continue;
2164       return arches;
2165     }
2166   return NULL;
2167 }
2168
2169
2170 /* Update the current architecture. Return ZERO if the update request
2171    failed. */
2172
2173 int
2174 gdbarch_update_p (struct gdbarch_info info)
2175 {
2176   struct gdbarch *new_gdbarch;
2177   struct gdbarch *old_gdbarch;
2178   struct gdbarch_registration *rego;
2179
2180   /* Fill in missing parts of the INFO struct using a number of
2181      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
2182
2183   /* \`\`(gdb) set architecture ...'' */
2184   if (info.bfd_arch_info == NULL
2185       && !TARGET_ARCHITECTURE_AUTO)
2186     info.bfd_arch_info = TARGET_ARCHITECTURE;
2187   if (info.bfd_arch_info == NULL
2188       && info.abfd != NULL
2189       && bfd_get_arch (info.abfd) != bfd_arch_unknown
2190       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2191     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2192   if (info.bfd_arch_info == NULL)
2193     info.bfd_arch_info = TARGET_ARCHITECTURE;
2194
2195   /* \`\`(gdb) set byte-order ...'' */
2196   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2197       && !TARGET_BYTE_ORDER_AUTO)
2198     info.byte_order = TARGET_BYTE_ORDER;
2199   /* From the INFO struct. */
2200   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2201       && info.abfd != NULL)
2202     info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2203                        : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2204                        : BFD_ENDIAN_UNKNOWN);
2205   /* From the current target. */
2206   if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2207     info.byte_order = TARGET_BYTE_ORDER;
2208
2209   /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi.  */
2210   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2211     info.osabi = gdbarch_lookup_osabi (info.abfd);
2212   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2213     info.osabi = current_gdbarch->osabi;
2214
2215   /* Must have found some sort of architecture. */
2216   gdb_assert (info.bfd_arch_info != NULL);
2217
2218   if (gdbarch_debug)
2219     {
2220       fprintf_unfiltered (gdb_stdlog,
2221                           "gdbarch_update: info.bfd_arch_info %s\n",
2222                           (info.bfd_arch_info != NULL
2223                            ? info.bfd_arch_info->printable_name
2224                            : "(null)"));
2225       fprintf_unfiltered (gdb_stdlog,
2226                           "gdbarch_update: info.byte_order %d (%s)\n",
2227                           info.byte_order,
2228                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2229                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2230                            : "default"));
2231       fprintf_unfiltered (gdb_stdlog,
2232                           "gdbarch_update: info.osabi %d (%s)\n",
2233                           info.osabi, gdbarch_osabi_name (info.osabi));
2234       fprintf_unfiltered (gdb_stdlog,
2235                           "gdbarch_update: info.abfd 0x%lx\n",
2236                           (long) info.abfd);
2237       fprintf_unfiltered (gdb_stdlog,
2238                           "gdbarch_update: info.tdep_info 0x%lx\n",
2239                           (long) info.tdep_info);
2240     }
2241
2242   /* Find the target that knows about this architecture. */
2243   for (rego = gdbarch_registry;
2244        rego != NULL;
2245        rego = rego->next)
2246     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2247       break;
2248   if (rego == NULL)
2249     {
2250       if (gdbarch_debug)
2251         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2252       return 0;
2253     }
2254
2255   /* Swap the data belonging to the old target out setting the
2256      installed data to zero.  This stops the ->init() function trying
2257      to refer to the previous architecture's global data structures.  */
2258   swapout_gdbarch_swap (current_gdbarch);
2259   clear_gdbarch_swap (current_gdbarch);
2260
2261   /* Save the previously selected architecture, setting the global to
2262      NULL.  This stops ->init() trying to use the previous
2263      architecture's configuration.  The previous architecture may not
2264      even be of the same architecture family.  The most recent
2265      architecture of the same family is found at the head of the
2266      rego->arches list.  */
2267   old_gdbarch = current_gdbarch;
2268   current_gdbarch = NULL;
2269
2270   /* Ask the target for a replacement architecture. */
2271   new_gdbarch = rego->init (info, rego->arches);
2272
2273   /* Did the target like it?  No. Reject the change and revert to the
2274      old architecture.  */
2275   if (new_gdbarch == NULL)
2276     {
2277       if (gdbarch_debug)
2278         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2279       swapin_gdbarch_swap (old_gdbarch);
2280       current_gdbarch = old_gdbarch;
2281       return 0;
2282     }
2283
2284   /* Did the architecture change?  No.  Oops, put the old architecture
2285      back.  */
2286   if (old_gdbarch == new_gdbarch)
2287     {
2288       if (gdbarch_debug)
2289         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2290                             (long) new_gdbarch,
2291                             new_gdbarch->bfd_arch_info->printable_name);
2292       swapin_gdbarch_swap (old_gdbarch);
2293       current_gdbarch = old_gdbarch;
2294       return 1;
2295     }
2296
2297   /* Is this a pre-existing architecture?  Yes. Move it to the front
2298      of the list of architectures (keeping the list sorted Most
2299      Recently Used) and then copy it in.  */
2300   {
2301     struct gdbarch_list **list;
2302     for (list = &rego->arches;
2303          (*list) != NULL;
2304          list = &(*list)->next)
2305       {
2306         if ((*list)->gdbarch == new_gdbarch)
2307           {
2308             struct gdbarch_list *this;
2309             if (gdbarch_debug)
2310               fprintf_unfiltered (gdb_stdlog,
2311                                   "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2312                                   (long) new_gdbarch,
2313                                   new_gdbarch->bfd_arch_info->printable_name);
2314             /* Unlink this.  */
2315             this = (*list);
2316             (*list) = this->next;
2317             /* Insert in the front.  */
2318             this->next = rego->arches;
2319             rego->arches = this;
2320             /* Copy the new architecture in.  */
2321             current_gdbarch = new_gdbarch;
2322             swapin_gdbarch_swap (new_gdbarch);
2323             architecture_changed_event ();
2324             return 1;
2325           }
2326       }
2327   }
2328
2329   /* Prepend this new architecture to the architecture list (keep the
2330      list sorted Most Recently Used).  */
2331   {
2332     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2333     this->next = rego->arches;
2334     this->gdbarch = new_gdbarch;
2335     rego->arches = this;
2336   }
2337
2338   /* Switch to this new architecture marking it initialized.  */
2339   current_gdbarch = new_gdbarch;
2340   current_gdbarch->initialized_p = 1;
2341   if (gdbarch_debug)
2342     {
2343       fprintf_unfiltered (gdb_stdlog,
2344                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2345                           (long) new_gdbarch,
2346                           new_gdbarch->bfd_arch_info->printable_name);
2347     }
2348
2349   /* Check that the newly installed architecture is valid.  Plug in
2350      any post init values.  */
2351   new_gdbarch->dump_tdep = rego->dump_tdep;
2352   verify_gdbarch (new_gdbarch);
2353
2354   /* Initialize the per-architecture memory (swap) areas.
2355      CURRENT_GDBARCH must be update before these modules are
2356      called. */
2357   init_gdbarch_swap (new_gdbarch);
2358
2359   /* Initialize the per-architecture data.  CURRENT_GDBARCH
2360      must be updated before these modules are called. */
2361   architecture_changed_event ();
2362
2363   if (gdbarch_debug)
2364     gdbarch_dump (current_gdbarch, gdb_stdlog);
2365
2366   return 1;
2367 }
2368
2369
2370 /* Disassembler */
2371
2372 /* Pointer to the target-dependent disassembly function.  */
2373 int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info *);
2374
2375 extern void _initialize_gdbarch (void);
2376
2377 void
2378 _initialize_gdbarch (void)
2379 {
2380   struct cmd_list_element *c;
2381
2382   add_show_from_set (add_set_cmd ("arch",
2383                                   class_maintenance,
2384                                   var_zinteger,
2385                                   (char *)&gdbarch_debug,
2386                                   "Set architecture debugging.\\n\\
2387 When non-zero, architecture debugging is enabled.", &setdebuglist),
2388                      &showdebuglist);
2389   c = add_set_cmd ("archdebug",
2390                    class_maintenance,
2391                    var_zinteger,
2392                    (char *)&gdbarch_debug,
2393                    "Set architecture debugging.\\n\\
2394 When non-zero, architecture debugging is enabled.", &setlist);
2395
2396   deprecate_cmd (c, "set debug arch");
2397   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2398 }
2399 EOF
2400
2401 # close things off
2402 exec 1>&2
2403 #../move-if-change new-gdbarch.c gdbarch.c
2404 compare_new gdbarch.c