gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   5 #
   6 # This file is part of GDB.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21
  22 # Make certain that the script is running in an internationalized
  23 # environment.
  24 LANG=c ; export LANG
  25 LC_ALL=c ; export LC_ALL
  26
  27
  28 compare_new ()
  29 {
  30     file=$1
  31     if test ! -r ${file}
  32     then
  33         echo "${file} missing? cp new-${file} ${file}" 1>&2
  34     elif diff -u ${file} new-${file}
  35     then
  36         echo "${file} unchanged" 1>&2
  37     else
  38         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  39     fi
  40 }
  41
  42
  43 # Format of the input table
  44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  45
  46 do_read ()
  47 {
  48     comment=""
  49     class=""
  50     while read line
  51     do
  52         if test "${line}" = ""
  53         then
  54             continue
  55         elif test "${line}" = "#" -a "${comment}" = ""
  56         then
  57             continue
  58         elif expr "${line}" : "#" > /dev/null
  59         then
  60             comment="${comment}
  61 ${line}"
  62         else
  63
  64             # The semantics of IFS varies between different SH's.  Some
  65             # treat ``::' as three fields while some treat it as just too.
  66             # Work around this by eliminating ``::'' ....
  67             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  68
  69             OFS="${IFS}" ; IFS="[:]"
  70             eval read ${read} <<EOF
  71 ${line}
  72 EOF
  73             IFS="${OFS}"
  74
  75             # .... and then going back through each field and strip out those
  76             # that ended up with just that space character.
  77             for r in ${read}
  78             do
  79                 if eval test \"\${${r}}\" = \"\ \"
  80                 then
  81                     eval ${r}=""
  82                 fi
  83             done
  84
  85             case "${level}" in
  86                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  87                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  88                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  89                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  90             esac
  91
  92             case "${class}" in
  93                 m ) staticdefault="${predefault}" ;;
  94                 M ) staticdefault="0" ;;
  95                 * ) test "${staticdefault}" || staticdefault=0 ;;
  96             esac
  97
  98             # come up with a format, use a few guesses for variables
  99             case ":${class}:${fmt}:${print}:" in
 100                 :[vV]::: )
 101                     if [ "${returntype}" = int ]
 102                     then
 103                         fmt="%d"
 104                         print="${macro}"
 105                     elif [ "${returntype}" = long ]
 106                     then
 107                         fmt="%ld"
 108                         print="${macro}"
 109                     fi
 110                     ;;
 111             esac
 112             test "${fmt}" || fmt="%ld"
 113             test "${print}" || print="(long) ${macro}"
 114
 115             case "${class}" in
 116             F | V | M )
 117                 case "${invalid_p}" in
 118                 "" )
 119                     if test -n "${predefault}"
 120                     then
 121                         #invalid_p="gdbarch->${function} == ${predefault}"
 122                         predicate="gdbarch->${function} != ${predefault}"
 123                     elif class_is_variable_p
 124                     then
 125                         predicate="gdbarch->${function} != 0"
 126                     elif class_is_function_p
 127                     then
 128                         predicate="gdbarch->${function} != NULL"
 129                     fi
 130                     ;;
 131                 * )
 132                     echo "Predicate function ${function} with invalid_p." 1>&2
 133                     kill $$
 134                     exit 1
 135                     ;;
 136                 esac
 137             esac
 138
 139             # PREDEFAULT is a valid fallback definition of MEMBER when
 140             # multi-arch is not enabled.  This ensures that the
 141             # default value, when multi-arch is the same as the
 142             # default value when not multi-arch.  POSTDEFAULT is
 143             # always a valid definition of MEMBER as this again
 144             # ensures consistency.
 145
 146             if [ -n "${postdefault}" ]
 147             then
 148                 fallbackdefault="${postdefault}"
 149             elif [ -n "${predefault}" ]
 150             then
 151                 fallbackdefault="${predefault}"
 152             else
 153                 fallbackdefault="0"
 154             fi
 155
 156             #NOT YET: See gdbarch.log for basic verification of
 157             # database
 158
 159             break
 160         fi
 161     done
 162     if [ -n "${class}" ]
 163     then
 164         true
 165     else
 166         false
 167     fi
 168 }
 169
 170
 171 fallback_default_p ()
 172 {
 173     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 174         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 175 }
 176
 177 class_is_variable_p ()
 178 {
 179     case "${class}" in
 180         *v* | *V* ) true ;;
 181         * ) false ;;
 182     esac
 183 }
 184
 185 class_is_function_p ()
 186 {
 187     case "${class}" in
 188         *f* | *F* | *m* | *M* ) true ;;
 189         * ) false ;;
 190     esac
 191 }
 192
 193 class_is_multiarch_p ()
 194 {
 195     case "${class}" in
 196         *m* | *M* ) true ;;
 197         * ) false ;;
 198     esac
 199 }
 200
 201 class_is_predicate_p ()
 202 {
 203     case "${class}" in
 204         *F* | *V* | *M* ) true ;;
 205         * ) false ;;
 206     esac
 207 }
 208
 209 class_is_info_p ()
 210 {
 211     case "${class}" in
 212         *i* ) true ;;
 213         * ) false ;;
 214     esac
 215 }
 216
 217
 218 # dump out/verify the doco
 219 for field in ${read}
 220 do
 221   case ${field} in
 222
 223     class ) : ;;
 224
 225         # # -> line disable
 226         # f -> function
 227         #   hiding a function
 228         # F -> function + predicate
 229         #   hiding a function + predicate to test function validity
 230         # v -> variable
 231         #   hiding a variable
 232         # V -> variable + predicate
 233         #   hiding a variable + predicate to test variables validity
 234         # i -> set from info
 235         #   hiding something from the ``struct info'' object
 236         # m -> multi-arch function
 237         #   hiding a multi-arch function (parameterised with the architecture)
 238         # M -> multi-arch function + predicate
 239         #   hiding a multi-arch function + predicate to test function validity
 240
 241     level ) : ;;
 242
 243         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 244         # LEVEL is a predicate on checking that a given method is
 245         # initialized (using INVALID_P).
 246
 247     macro ) : ;;
 248
 249         # The name of the MACRO that this method is to be accessed by.
 250
 251     returntype ) : ;;
 252
 253         # For functions, the return type; for variables, the data type
 254
 255     function ) : ;;
 256
 257         # For functions, the member function name; for variables, the
 258         # variable name.  Member function names are always prefixed with
 259         # ``gdbarch_'' for name-space purity.
 260
 261     formal ) : ;;
 262
 263         # The formal argument list.  It is assumed that the formal
 264         # argument list includes the actual name of each list element.
 265         # A function with no arguments shall have ``void'' as the
 266         # formal argument list.
 267
 268     actual ) : ;;
 269
 270         # The list of actual arguments.  The arguments specified shall
 271         # match the FORMAL list given above.  Functions with out
 272         # arguments leave this blank.
 273
 274     attrib ) : ;;
 275
 276         # Any GCC attributes that should be attached to the function
 277         # declaration.  At present this field is unused.
 278
 279     staticdefault ) : ;;
 280
 281         # To help with the GDB startup a static gdbarch object is
 282         # created.  STATICDEFAULT is the value to insert into that
 283         # static gdbarch object.  Since this a static object only
 284         # simple expressions can be used.
 285
 286         # If STATICDEFAULT is empty, zero is used.
 287
 288     predefault ) : ;;
 289
 290         # An initial value to assign to MEMBER of the freshly
 291         # malloc()ed gdbarch object.  After initialization, the
 292         # freshly malloc()ed object is passed to the target
 293         # architecture code for further updates.
 294
 295         # If PREDEFAULT is empty, zero is used.
 296
 297         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 298         # INVALID_P are specified, PREDEFAULT will be used as the
 299         # default for the non- multi-arch target.
 300
 301         # A zero PREDEFAULT function will force the fallback to call
 302         # internal_error().
 303
 304         # Variable declarations can refer to ``gdbarch'' which will
 305         # contain the current architecture.  Care should be taken.
 306
 307     postdefault ) : ;;
 308
 309         # A value to assign to MEMBER of the new gdbarch object should
 310         # the target architecture code fail to change the PREDEFAULT
 311         # value.
 312
 313         # If POSTDEFAULT is empty, no post update is performed.
 314
 315         # If both INVALID_P and POSTDEFAULT are non-empty then
 316         # INVALID_P will be used to determine if MEMBER should be
 317         # changed to POSTDEFAULT.
 318
 319         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 320         # specified, POSTDEFAULT will be used as the default for the
 321         # non- multi-arch target (regardless of the value of
 322         # PREDEFAULT).
 323
 324         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 325
 326         # Variable declarations can refer to ``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
 430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 431 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
 432 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
 433 # Function for getting target's idea of a frame pointer.  FIXME: GDB's
 434 # whole scheme for dealing with "frames" and "frame pointers" needs a
 435 # serious shakedown.
 436 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
 437 #
 438 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
 439 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
 440 #
 441 v:2:NUM_REGS:int:num_regs::::0:-1
 442 # This macro gives the number of pseudo-registers that live in the
 443 # register namespace but do not get fetched or stored on the target.
 444 # These pseudo-registers may be aliases for other registers,
 445 # combinations of other registers, or they may be computed by GDB.
 446 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 447
 448 # GDB's standard (or well known) register numbers.  These can map onto
 449 # a real register or a pseudo (computed) register or not be defined at
 450 # all (-1).
 451 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
 452 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
 453 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
 454 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
 455 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 456 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
 457 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 458 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 459 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 460 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 461 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 462 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 463 # Convert from an sdb register number to an internal gdb register number.
 464 # This should be defined in tm.h, if REGISTER_NAMES is not set up
 465 # to map one to one onto the sdb register numbers.
 466 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 467 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 468 f::REGISTER_NAME:const char *:register_name:int regnr:regnr
 469
 470 # REGISTER_TYPE is a direct replacement for REGISTER_VIRTUAL_TYPE.
 471 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr
 472 # REGISTER_TYPE is a direct replacement for REGISTER_VIRTUAL_TYPE.
 473 F:2:REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr
 474 # DEPRECATED_REGISTER_BYTES can be deleted.  The value is computed
 475 # from REGISTER_TYPE.
 476 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
 477 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
 478 # register offsets computed using just REGISTER_TYPE, this can be
 479 # deleted.  See: maint print registers.  NOTE: cagney/2002-05-02: This
 480 # function with predicate has a valid (callable) initial value.  As a
 481 # consequence, even when the predicate is false, the corresponding
 482 # function works.  This simplifies the migration process - old code,
 483 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
 484 F::REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
 485 # If all registers have identical raw and virtual sizes and those
 486 # sizes agree with the value computed from REGISTER_TYPE,
 487 # DEPRECATED_REGISTER_RAW_SIZE can be deleted.  See: maint print
 488 # registers.
 489 F:2:REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 490 # If all registers have identical raw and virtual sizes and those
 491 # sizes agree with the value computed from REGISTER_TYPE,
 492 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted.  See: maint print
 493 # registers.
 494 F:2:REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 495 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted.  It has been
 496 # replaced by the constant MAX_REGISTER_SIZE.
 497 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
 498 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted.  It has been
 499 # replaced by the constant MAX_REGISTER_SIZE.
 500 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
 501
 502 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
 503 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info
 504 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 505 # SAVE_DUMMY_FRAME_TOS.
 506 F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp
 507 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 508 # DEPRECATED_FP_REGNUM.
 509 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
 510 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 511 # DEPRECATED_TARGET_READ_FP.
 512 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
 513
 514 # See gdbint.texinfo.  See infcall.c.  New, all singing all dancing,
 515 # replacement for DEPRECATED_PUSH_ARGUMENTS.
 516 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:CORE_ADDR func_addr, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:func_addr, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
 517 # PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS.
 518 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
 519 # DEPRECATED_USE_GENERIC_DUMMY_FRAMES can be deleted.  Always true.
 520 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
 521 # Implement PUSH_RETURN_ADDRESS, and then merge in
 522 # DEPRECATED_PUSH_RETURN_ADDRESS.
 523 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
 524 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
 525 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
 526 # DEPRECATED_REGISTER_SIZE can be deleted.
 527 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
 528 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
 529 f::CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void::::entry_point_address::0
 530 # DEPRECATED_CALL_DUMMY_START_OFFSET can be deleted.
 531 v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset
 532 # DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET can be deleted.
 533 v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset
 534 # DEPRECATED_CALL_DUMMY_LENGTH can be deleted.
 535 v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length
 536 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
 537 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 538 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
 539 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 540 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_CALL_DUMMY_STACK_ADJUST.
 541 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust
 542 # DEPRECATED_FIX_CALL_DUMMY can be deleted.  For the SPARC, implement
 543 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
 544 F::DEPRECATED_FIX_CALL_DUMMY:void:deprecated_fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p
 545 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
 546 M::PUSH_DUMMY_CODE:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr
 547 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
 548 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
 549 # Implement PUSH_DUMMY_CALL, then delete
 550 # DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED.
 551 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
 552
 553 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 554 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
 555 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 556 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 557 # MAP a GDB RAW register number onto a simulator register number.  See
 558 # also include/...-sim.h.
 559 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 560 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
 561 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 562 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 563 # setjmp/longjmp support.
 564 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
 565 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 566 # (callable) initial value.  As a consequence, even when the predicate
 567 # is false, the corresponding function works.  This simplifies the
 568 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 569 # doesn't need to be modified.
 570 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
 571 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
 572 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 573 #
 574 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 575 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 576 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
 577 #
 578 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 579 # For raw <-> cooked register conversions, replaced by pseudo registers.
 580 f:2:DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr:::deprecated_register_convertible_not::0
 581 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 582 # For raw <-> cooked register conversions, replaced by pseudo registers.
 583 f:2:DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL:void:deprecated_register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
 584 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 585 # For raw <-> cooked register conversions, replaced by pseudo registers.
 586 f:2:DEPRECATED_REGISTER_CONVERT_TO_RAW:void:deprecated_register_convert_to_raw:struct type *type, int regnum, const char *from, char *to:type, regnum, from, to:::0::0
 587 #
 588 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
 589 f:1:REGISTER_TO_VALUE:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, void *buf:frame, regnum, type, buf::0:legacy_register_to_value::0
 590 f:1:VALUE_TO_REGISTER:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const void *buf:frame, regnum, type, buf::0:legacy_value_to_register::0
 591 #
 592 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 593 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
 594 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 595 #
 596 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 597 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
 598 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 599 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
 600 #
 601 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
 602 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
 603 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 604 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 605 #
 606 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache
 607 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf
 608 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
 609 #
 610 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
 611 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
 612 #
 613 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 614 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
 615 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 616 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
 617 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 618 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 619 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
 620 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
 621 #
 622 m::REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:regcache, gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
 623 #
 624 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 625 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 626 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
 627 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
 628 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 629 # note, per UNWIND_PC's doco, that while the two have similar
 630 # interfaces they have very different underlying implementations.
 631 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
 632 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
 633 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
 634 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
 635 # frame-base.  Enable frame-base before frame-unwind.
 636 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 637 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 638 # frame-base.  Enable frame-base before frame-unwind.
 639 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 640 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 641 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
 642 #
 643 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp
 644 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 645 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
 646 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
 647 v:2:PARM_BOUNDARY:int:parm_boundary
 648 #
 649 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 650 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 651 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 652 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
 653 # On some machines there are bits in addresses which are not really
 654 # part of the address, but are used by the kernel, the hardware, etc.
 655 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 656 # we get a "real" address such as one would find in a symbol table.
 657 # This is used only for addresses of instructions, and even then I'm
 658 # not sure it's used in all contexts.  It exists to deal with there
 659 # being a few stray bits in the PC which would mislead us, not as some
 660 # sort of generic thing to handle alignment or segmentation (it's
 661 # possible it should be in TARGET_READ_PC instead).
 662 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 663 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 664 # ADDR_BITS_REMOVE.
 665 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 666 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 667 # the target needs software single step.  An ISA method to implement it.
 668 #
 669 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 670 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 671 #
 672 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 673 # single step.  If not, then implement single step using breakpoints.
 674 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
 675 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 676 # disassembler.  Perhaphs objdump can handle it?
 677 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::0:
 678 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 679
 680
 681 # For SVR4 shared libraries, each call goes through a small piece of
 682 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 683 # to nonzero if we are currently stopped in one of these.
 684 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 685
 686 # Some systems also have trampoline code for returning from shared libs.
 687 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 688
 689 # Sigtramp is a routine that the kernel calls (which then calls the
 690 # signal handler).  On most machines it is a library routine that is
 691 # linked into the executable.
 692 #
 693 # This macro, given a program counter value and the name of the
 694 # function in which that PC resides (which can be null if the name is
 695 # not known), returns nonzero if the PC and name show that we are in
 696 # sigtramp.
 697 #
 698 # On most machines just see if the name is sigtramp (and if we have
 699 # no name, assume we are not in sigtramp).
 700 #
 701 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 702 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 703 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 704 # own local NAME lookup.
 705 #
 706 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 707 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 708 # does not.
 709 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 710 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 711 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 712 # A target might have problems with watchpoints as soon as the stack
 713 # frame of the current function has been destroyed.  This mostly happens
 714 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 715 # is defined to return a non-zero value if either the given addr is one
 716 # instruction after the stack destroying instruction up to the trailing
 717 # return instruction or if we can figure out that the stack frame has
 718 # already been invalidated regardless of the value of addr.  Targets
 719 # which don't suffer from that problem could just let this functionality
 720 # untouched.
 721 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 722 # Given a vector of command-line arguments, return a newly allocated
 723 # string which, when passed to the create_inferior function, will be
 724 # parsed (on Unix systems, by the shell) to yield the same vector.
 725 # This function should call error() if the argument vector is not
 726 # representable for this target or if this target does not support
 727 # command-line arguments.
 728 # ARGC is the number of elements in the vector.
 729 # ARGV is an array of strings, one per argument.
 730 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 731 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
 732 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
 733 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 734 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 735 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 736 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 737 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
 738 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
 739 # Is a register in a group
 740 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 741 # Fetch the pointer to the ith function argument.
 742 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 743 EOF
 744 }
 745
 746 #
 747 # The .log file
 748 #
 749 exec > new-gdbarch.log
 750 function_list | while do_read
 751 do
 752     cat <<EOF
 753 ${class} ${macro}(${actual})
 754   ${returntype} ${function} ($formal)${attrib}
 755 EOF
 756     for r in ${read}
 757     do
 758         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 759     done
 760     if class_is_predicate_p && fallback_default_p
 761     then
 762         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 763         kill $$
 764         exit 1
 765     fi
 766     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 767     then
 768         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 769         kill $$
 770         exit 1
 771     fi
 772     if class_is_multiarch_p
 773     then
 774         if class_is_predicate_p ; then :
 775         elif test "x${predefault}" = "x"
 776         then
 777             echo "Error: pure multi-arch function must have a predefault" 1>&2
 778             kill $$
 779             exit 1
 780         fi
 781     fi
 782     echo ""
 783 done
 784
 785 exec 1>&2
 786 compare_new gdbarch.log
 787
 788
 789 copyright ()
 790 {
 791 cat <<EOF
 792 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 793
 794 /* Dynamic architecture support for GDB, the GNU debugger.
 795    Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 796
 797    This file is part of GDB.
 798
 799    This program is free software; you can redistribute it and/or modify
 800    it under the terms of the GNU General Public License as published by
 801    the Free Software Foundation; either version 2 of the License, or
 802    (at your option) any later version.
 803
 804    This program is distributed in the hope that it will be useful,
 805    but WITHOUT ANY WARRANTY; without even the implied warranty of
 806    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 807    GNU General Public License for more details.
 808
 809    You should have received a copy of the GNU General Public License
 810    along with this program; if not, write to the Free Software
 811    Foundation, Inc., 59 Temple Place - Suite 330,
 812    Boston, MA 02111-1307, USA.  */
 813
 814 /* This file was created with the aid of \`\`gdbarch.sh''.
 815
 816    The Bourne shell script \`\`gdbarch.sh'' creates the files
 817    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 818    against the existing \`\`gdbarch.[hc]''.  Any differences found
 819    being reported.
 820
 821    If editing this file, please also run gdbarch.sh and merge any
 822    changes into that script. Conversely, when making sweeping changes
 823    to this file, modifying gdbarch.sh and using its output may prove
 824    easier. */
 825
 826 EOF
 827 }
 828
 829 #
 830 # The .h file
 831 #
 832
 833 exec > new-gdbarch.h
 834 copyright
 835 cat <<EOF
 836 #ifndef GDBARCH_H
 837 #define GDBARCH_H
 838
 839 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
 840
 841 struct floatformat;
 842 struct ui_file;
 843 struct frame_info;
 844 struct value;
 845 struct objfile;
 846 struct minimal_symbol;
 847 struct regcache;
 848 struct reggroup;
 849
 850 extern struct gdbarch *current_gdbarch;
 851
 852
 853 /* If any of the following are defined, the target wasn't correctly
 854    converted. */
 855
 856 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 857 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 858 #endif
 859 EOF
 860
 861 # function typedef's
 862 printf "\n"
 863 printf "\n"
 864 printf "/* The following are pre-initialized by GDBARCH. */\n"
 865 function_list | while do_read
 866 do
 867     if class_is_info_p
 868     then
 869         printf "\n"
 870         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 871         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 872         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 873         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 874         printf "#endif\n"
 875         printf "#if !defined (${macro})\n"
 876         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 877         printf "#endif\n"
 878     fi
 879 done
 880
 881 # function typedef's
 882 printf "\n"
 883 printf "\n"
 884 printf "/* The following are initialized by the target dependent code. */\n"
 885 function_list | while do_read
 886 do
 887     if [ -n "${comment}" ]
 888     then
 889         echo "${comment}" | sed \
 890             -e '2 s,#,/*,' \
 891             -e '3,$ s,#,  ,' \
 892             -e '$ s,$, */,'
 893     fi
 894     if class_is_multiarch_p
 895     then
 896         if class_is_predicate_p
 897         then
 898             printf "\n"
 899             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 900         fi
 901     else
 902         if class_is_predicate_p
 903         then
 904             printf "\n"
 905             printf "#if defined (${macro})\n"
 906             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 907             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 908             printf "#if !defined (${macro}_P)\n"
 909             printf "#define ${macro}_P() (1)\n"
 910             printf "#endif\n"
 911             printf "#endif\n"
 912             printf "\n"
 913             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 914             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 915             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 916             printf "#endif\n"
 917             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 918             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 919             printf "#endif\n"
 920         fi
 921     fi
 922     if class_is_variable_p
 923     then
 924         printf "\n"
 925         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 926         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 927         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 928         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 929         printf "#endif\n"
 930         printf "#if !defined (${macro})\n"
 931         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 932         printf "#endif\n"
 933     fi
 934     if class_is_function_p
 935     then
 936         printf "\n"
 937         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 938         then
 939             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 940         elif class_is_multiarch_p
 941         then
 942             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 943         else
 944             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 945         fi
 946         if [ "x${formal}" = "xvoid" ]
 947         then
 948           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 949         else
 950           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 951         fi
 952         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 953         if class_is_multiarch_p ; then :
 954         else
 955             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 956             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 957             printf "#endif\n"
 958             if [ "x${actual}" = "x" ]
 959             then
 960                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
 961             elif [ "x${actual}" = "x-" ]
 962             then
 963                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
 964             else
 965                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
 966             fi
 967             printf "#if !defined (${macro})\n"
 968             if [ "x${actual}" = "x" ]
 969             then
 970                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 971             elif [ "x${actual}" = "x-" ]
 972             then
 973                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 974             else
 975                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
 976             fi
 977             printf "#endif\n"
 978         fi
 979     fi
 980 done
 981
 982 # close it off
 983 cat <<EOF
 984
 985 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 986
 987
 988 /* Mechanism for co-ordinating the selection of a specific
 989    architecture.
 990
 991    GDB targets (*-tdep.c) can register an interest in a specific
 992    architecture.  Other GDB components can register a need to maintain
 993    per-architecture data.
 994
 995    The mechanisms below ensures that there is only a loose connection
 996    between the set-architecture command and the various GDB
 997    components.  Each component can independently register their need
 998    to maintain architecture specific data with gdbarch.
 999
1000    Pragmatics:
1001
1002    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1003    didn't scale.
1004
1005    The more traditional mega-struct containing architecture specific
1006    data for all the various GDB components was also considered.  Since
1007    GDB is built from a variable number of (fairly independent)
1008    components it was determined that the global aproach was not
1009    applicable. */
1010
1011
1012 /* Register a new architectural family with GDB.
1013
1014    Register support for the specified ARCHITECTURE with GDB.  When
1015    gdbarch determines that the specified architecture has been
1016    selected, the corresponding INIT function is called.
1017
1018    --
1019
1020    The INIT function takes two parameters: INFO which contains the
1021    information available to gdbarch about the (possibly new)
1022    architecture; ARCHES which is a list of the previously created
1023    \`\`struct gdbarch'' for this architecture.
1024
1025    The INFO parameter is, as far as possible, be pre-initialized with
1026    information obtained from INFO.ABFD or the previously selected
1027    architecture.
1028
1029    The ARCHES parameter is a linked list (sorted most recently used)
1030    of all the previously created architures for this architecture
1031    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1032    values from the previously selected architecture for this
1033    architecture family.  The global \`\`current_gdbarch'' shall not be
1034    used.
1035
1036    The INIT function shall return any of: NULL - indicating that it
1037    doesn't recognize the selected architecture; an existing \`\`struct
1038    gdbarch'' from the ARCHES list - indicating that the new
1039    architecture is just a synonym for an earlier architecture (see
1040    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1041    - that describes the selected architecture (see gdbarch_alloc()).
1042
1043    The DUMP_TDEP function shall print out all target specific values.
1044    Care should be taken to ensure that the function works in both the
1045    multi-arch and non- multi-arch cases. */
1046
1047 struct gdbarch_list
1048 {
1049   struct gdbarch *gdbarch;
1050   struct gdbarch_list *next;
1051 };
1052
1053 struct gdbarch_info
1054 {
1055   /* Use default: NULL (ZERO). */
1056   const struct bfd_arch_info *bfd_arch_info;
1057
1058   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1059   int byte_order;
1060
1061   /* Use default: NULL (ZERO). */
1062   bfd *abfd;
1063
1064   /* Use default: NULL (ZERO). */
1065   struct gdbarch_tdep_info *tdep_info;
1066
1067   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1068   enum gdb_osabi osabi;
1069 };
1070
1071 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1072 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1073
1074 /* DEPRECATED - use gdbarch_register() */
1075 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1076
1077 extern void gdbarch_register (enum bfd_architecture architecture,
1078                               gdbarch_init_ftype *,
1079                               gdbarch_dump_tdep_ftype *);
1080
1081
1082 /* Return a freshly allocated, NULL terminated, array of the valid
1083    architecture names.  Since architectures are registered during the
1084    _initialize phase this function only returns useful information
1085    once initialization has been completed. */
1086
1087 extern const char **gdbarch_printable_names (void);
1088
1089
1090 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1091    matches the information provided by INFO. */
1092
1093 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1094
1095
1096 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1097    basic initialization using values obtained from the INFO andTDEP
1098    parameters.  set_gdbarch_*() functions are called to complete the
1099    initialization of the object. */
1100
1101 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1102
1103
1104 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1105    It is assumed that the caller freeds the \`\`struct
1106    gdbarch_tdep''. */
1107
1108 extern void gdbarch_free (struct gdbarch *);
1109
1110
1111 /* Helper function.  Allocate memory from the \`\`struct gdbarch''
1112    obstack.  The memory is freed when the corresponding architecture
1113    is also freed.  */
1114
1115 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1116 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1117 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1118
1119
1120 /* Helper function. Force an update of the current architecture.
1121
1122    The actual architecture selected is determined by INFO, \`\`(gdb) set
1123    architecture'' et.al., the existing architecture and BFD's default
1124    architecture.  INFO should be initialized to zero and then selected
1125    fields should be updated.
1126
1127    Returns non-zero if the update succeeds */
1128
1129 extern int gdbarch_update_p (struct gdbarch_info info);
1130
1131
1132
1133 /* Register per-architecture data-pointer.
1134
1135    Reserve space for a per-architecture data-pointer.  An identifier
1136    for the reserved data-pointer is returned.  That identifer should
1137    be saved in a local static variable.
1138
1139    The per-architecture data-pointer is either initialized explicitly
1140    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1141    gdbarch_data()).
1142
1143    Memory for the per-architecture data shall be allocated using
1144    gdbarch_obstack_zalloc.  That memory will be deleted when the
1145    corresponding architecture object is deleted.
1146
1147    When a previously created architecture is re-selected, the
1148    per-architecture data-pointer for that previous architecture is
1149    restored.  INIT() is not re-called.
1150
1151    Multiple registrarants for any architecture are allowed (and
1152    strongly encouraged).  */
1153
1154 struct gdbarch_data;
1155
1156 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1157 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1158 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1159                               struct gdbarch_data *data,
1160                               void *pointer);
1161
1162 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1163
1164
1165 /* Register per-architecture memory region.
1166
1167    Provide a memory-region swap mechanism.  Per-architecture memory
1168    region are created.  These memory regions are swapped whenever the
1169    architecture is changed.  For a new architecture, the memory region
1170    is initialized with zero (0) and the INIT function is called.
1171
1172    Memory regions are swapped / initialized in the order that they are
1173    registered.  NULL DATA and/or INIT values can be specified.
1174
1175    New code should use register_gdbarch_data(). */
1176
1177 typedef void (gdbarch_swap_ftype) (void);
1178 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1179 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1180
1181
1182
1183 /* The target-system-dependent byte order is dynamic */
1184
1185 extern int target_byte_order;
1186 #ifndef TARGET_BYTE_ORDER
1187 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1188 #endif
1189
1190 extern int target_byte_order_auto;
1191 #ifndef TARGET_BYTE_ORDER_AUTO
1192 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1193 #endif
1194
1195
1196
1197 /* The target-system-dependent BFD architecture is dynamic */
1198
1199 extern int target_architecture_auto;
1200 #ifndef TARGET_ARCHITECTURE_AUTO
1201 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1202 #endif
1203
1204 extern const struct bfd_arch_info *target_architecture;
1205 #ifndef TARGET_ARCHITECTURE
1206 #define TARGET_ARCHITECTURE (target_architecture + 0)
1207 #endif
1208
1209
1210 /* Set the dynamic target-system-dependent parameters (architecture,
1211    byte-order, ...) using information found in the BFD */
1212
1213 extern void set_gdbarch_from_file (bfd *);
1214
1215
1216 /* Initialize the current architecture to the "first" one we find on
1217    our list.  */
1218
1219 extern void initialize_current_architecture (void);
1220
1221 /* For non-multiarched targets, do any initialization of the default
1222    gdbarch object necessary after the _initialize_MODULE functions
1223    have run.  */
1224 extern void initialize_non_multiarch (void);
1225
1226 /* gdbarch trace variable */
1227 extern int gdbarch_debug;
1228
1229 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1230
1231 #endif
1232 EOF
1233 exec 1>&2
1234 #../move-if-change new-gdbarch.h gdbarch.h
1235 compare_new gdbarch.h
1236
1237
1238 #
1239 # C file
1240 #
1241
1242 exec > new-gdbarch.c
1243 copyright
1244 cat <<EOF
1245
1246 #include "defs.h"
1247 #include "arch-utils.h"
1248
1249 #include "gdbcmd.h"
1250 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1251 #include "symcat.h"
1252
1253 #include "floatformat.h"
1254
1255 #include "gdb_assert.h"
1256 #include "gdb_string.h"
1257 #include "gdb-events.h"
1258 #include "reggroups.h"
1259 #include "osabi.h"
1260 #include "symfile.h"            /* For entry_point_address.  */
1261 #include "gdb_obstack.h"
1262
1263 /* Static function declarations */
1264
1265 static void verify_gdbarch (struct gdbarch *gdbarch);
1266 static void alloc_gdbarch_data (struct gdbarch *);
1267 static void init_gdbarch_swap (struct gdbarch *);
1268 static void clear_gdbarch_swap (struct gdbarch *);
1269 static void swapout_gdbarch_swap (struct gdbarch *);
1270 static void swapin_gdbarch_swap (struct gdbarch *);
1271
1272 /* Non-zero if we want to trace architecture code.  */
1273
1274 #ifndef GDBARCH_DEBUG
1275 #define GDBARCH_DEBUG 0
1276 #endif
1277 int gdbarch_debug = GDBARCH_DEBUG;
1278
1279 EOF
1280
1281 # gdbarch open the gdbarch object
1282 printf "\n"
1283 printf "/* Maintain the struct gdbarch object */\n"
1284 printf "\n"
1285 printf "struct gdbarch\n"
1286 printf "{\n"
1287 printf "  /* Has this architecture been fully initialized?  */\n"
1288 printf "  int initialized_p;\n"
1289 printf "\n"
1290 printf "  /* An obstack bound to the lifetime of the architecture.  */\n"
1291 printf "  struct obstack *obstack;\n"
1292 printf "\n"
1293 printf "  /* basic architectural information */\n"
1294 function_list | while do_read
1295 do
1296     if class_is_info_p
1297     then
1298         printf "  ${returntype} ${function};\n"
1299     fi
1300 done
1301 printf "\n"
1302 printf "  /* target specific vector. */\n"
1303 printf "  struct gdbarch_tdep *tdep;\n"
1304 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1305 printf "\n"
1306 printf "  /* per-architecture data-pointers */\n"
1307 printf "  unsigned nr_data;\n"
1308 printf "  void **data;\n"
1309 printf "\n"
1310 printf "  /* per-architecture swap-regions */\n"
1311 printf "  struct gdbarch_swap *swap;\n"
1312 printf "\n"
1313 cat <<EOF
1314   /* Multi-arch values.
1315
1316      When extending this structure you must:
1317
1318      Add the field below.
1319
1320      Declare set/get functions and define the corresponding
1321      macro in gdbarch.h.
1322
1323      gdbarch_alloc(): If zero/NULL is not a suitable default,
1324      initialize the new field.
1325
1326      verify_gdbarch(): Confirm that the target updated the field
1327      correctly.
1328
1329      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1330      field is dumped out
1331
1332      \`\`startup_gdbarch()'': Append an initial value to the static
1333      variable (base values on the host's c-type system).
1334
1335      get_gdbarch(): Implement the set/get functions (probably using
1336      the macro's as shortcuts).
1337
1338      */
1339
1340 EOF
1341 function_list | while do_read
1342 do
1343     if class_is_variable_p
1344     then
1345         printf "  ${returntype} ${function};\n"
1346     elif class_is_function_p
1347     then
1348         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1349     fi
1350 done
1351 printf "};\n"
1352
1353 # A pre-initialized vector
1354 printf "\n"
1355 printf "\n"
1356 cat <<EOF
1357 /* The default architecture uses host values (for want of a better
1358    choice). */
1359 EOF
1360 printf "\n"
1361 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1362 printf "\n"
1363 printf "struct gdbarch startup_gdbarch =\n"
1364 printf "{\n"
1365 printf "  1, /* Always initialized.  */\n"
1366 printf "  NULL, /* The obstack.  */\n"
1367 printf "  /* basic architecture information */\n"
1368 function_list | while do_read
1369 do
1370     if class_is_info_p
1371     then
1372         printf "  ${staticdefault},  /* ${function} */\n"
1373     fi
1374 done
1375 cat <<EOF
1376   /* target specific vector and its dump routine */
1377   NULL, NULL,
1378   /*per-architecture data-pointers and swap regions */
1379   0, NULL, NULL,
1380   /* Multi-arch values */
1381 EOF
1382 function_list | while do_read
1383 do
1384     if class_is_function_p || class_is_variable_p
1385     then
1386         printf "  ${staticdefault},  /* ${function} */\n"
1387     fi
1388 done
1389 cat <<EOF
1390   /* startup_gdbarch() */
1391 };
1392
1393 struct gdbarch *current_gdbarch = &startup_gdbarch;
1394
1395 /* Do any initialization needed for a non-multiarch configuration
1396    after the _initialize_MODULE functions have been run.  */
1397 void
1398 initialize_non_multiarch (void)
1399 {
1400   alloc_gdbarch_data (&startup_gdbarch);
1401   /* Ensure that all swap areas are zeroed so that they again think
1402      they are starting from scratch.  */
1403   clear_gdbarch_swap (&startup_gdbarch);
1404   init_gdbarch_swap (&startup_gdbarch);
1405 }
1406 EOF
1407
1408 # Create a new gdbarch struct
1409 printf "\n"
1410 printf "\n"
1411 cat <<EOF
1412 /* Create a new \`\`struct gdbarch'' based on information provided by
1413    \`\`struct gdbarch_info''. */
1414 EOF
1415 printf "\n"
1416 cat <<EOF
1417 struct gdbarch *
1418 gdbarch_alloc (const struct gdbarch_info *info,
1419                struct gdbarch_tdep *tdep)
1420 {
1421   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1422      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1423      the current local architecture and not the previous global
1424      architecture.  This ensures that the new architectures initial
1425      values are not influenced by the previous architecture.  Once
1426      everything is parameterised with gdbarch, this will go away.  */
1427   struct gdbarch *current_gdbarch;
1428
1429   /* Create an obstack for allocating all the per-architecture memory,
1430      then use that to allocate the architecture vector.  */
1431   struct obstack *obstack = XMALLOC (struct obstack);
1432   obstack_init (obstack);
1433   current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1434   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1435   current_gdbarch->obstack = obstack;
1436
1437   alloc_gdbarch_data (current_gdbarch);
1438
1439   current_gdbarch->tdep = tdep;
1440 EOF
1441 printf "\n"
1442 function_list | while do_read
1443 do
1444     if class_is_info_p
1445     then
1446         printf "  current_gdbarch->${function} = info->${function};\n"
1447     fi
1448 done
1449 printf "\n"
1450 printf "  /* Force the explicit initialization of these. */\n"
1451 function_list | while do_read
1452 do
1453     if class_is_function_p || class_is_variable_p
1454     then
1455         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1456         then
1457           printf "  current_gdbarch->${function} = ${predefault};\n"
1458         fi
1459     fi
1460 done
1461 cat <<EOF
1462   /* gdbarch_alloc() */
1463
1464   return current_gdbarch;
1465 }
1466 EOF
1467
1468 # Free a gdbarch struct.
1469 printf "\n"
1470 printf "\n"
1471 cat <<EOF
1472 /* Allocate extra space using the per-architecture obstack.  */
1473
1474 void *
1475 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1476 {
1477   void *data = obstack_alloc (arch->obstack, size);
1478   memset (data, 0, size);
1479   return data;
1480 }
1481
1482
1483 /* Free a gdbarch struct.  This should never happen in normal
1484    operation --- once you've created a gdbarch, you keep it around.
1485    However, if an architecture's init function encounters an error
1486    building the structure, it may need to clean up a partially
1487    constructed gdbarch.  */
1488
1489 void
1490 gdbarch_free (struct gdbarch *arch)
1491 {
1492   struct obstack *obstack;
1493   gdb_assert (arch != NULL);
1494   gdb_assert (!arch->initialized_p);
1495   obstack = arch->obstack;
1496   obstack_free (obstack, 0); /* Includes the ARCH.  */
1497   xfree (obstack);
1498 }
1499 EOF
1500
1501 # verify a new architecture
1502 printf "\n"
1503 printf "\n"
1504 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1505 printf "\n"
1506 cat <<EOF
1507 static void
1508 verify_gdbarch (struct gdbarch *gdbarch)
1509 {
1510   struct ui_file *log;
1511   struct cleanup *cleanups;
1512   long dummy;
1513   char *buf;
1514   log = mem_fileopen ();
1515   cleanups = make_cleanup_ui_file_delete (log);
1516   /* fundamental */
1517   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1518     fprintf_unfiltered (log, "\n\tbyte-order");
1519   if (gdbarch->bfd_arch_info == NULL)
1520     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1521   /* Check those that need to be defined for the given multi-arch level. */
1522 EOF
1523 function_list | while do_read
1524 do
1525     if class_is_function_p || class_is_variable_p
1526     then
1527         if [ "x${invalid_p}" = "x0" ]
1528         then
1529             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1530         elif class_is_predicate_p
1531         then
1532             printf "  /* Skip verify of ${function}, has predicate */\n"
1533         # FIXME: See do_read for potential simplification
1534         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1535         then
1536             printf "  if (${invalid_p})\n"
1537             printf "    gdbarch->${function} = ${postdefault};\n"
1538         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1539         then
1540             printf "  if (gdbarch->${function} == ${predefault})\n"
1541             printf "    gdbarch->${function} = ${postdefault};\n"
1542         elif [ -n "${postdefault}" ]
1543         then
1544             printf "  if (gdbarch->${function} == 0)\n"
1545             printf "    gdbarch->${function} = ${postdefault};\n"
1546         elif [ -n "${invalid_p}" ]
1547         then
1548             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1549             printf "      && (${invalid_p}))\n"
1550             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1551         elif [ -n "${predefault}" ]
1552         then
1553             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1554             printf "      && (gdbarch->${function} == ${predefault}))\n"
1555             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1556         fi
1557     fi
1558 done
1559 cat <<EOF
1560   buf = ui_file_xstrdup (log, &dummy);
1561   make_cleanup (xfree, buf);
1562   if (strlen (buf) > 0)
1563     internal_error (__FILE__, __LINE__,
1564                     "verify_gdbarch: the following are invalid ...%s",
1565                     buf);
1566   do_cleanups (cleanups);
1567 }
1568 EOF
1569
1570 # dump the structure
1571 printf "\n"
1572 printf "\n"
1573 cat <<EOF
1574 /* Print out the details of the current architecture. */
1575
1576 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1577    just happens to match the global variable \`\`current_gdbarch''.  That
1578    way macros refering to that variable get the local and not the global
1579    version - ulgh.  Once everything is parameterised with gdbarch, this
1580    will go away. */
1581
1582 void
1583 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1584 {
1585   fprintf_unfiltered (file,
1586                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1587                       GDB_MULTI_ARCH);
1588 EOF
1589 function_list | sort -t: -k 3 | while do_read
1590 do
1591     # First the predicate
1592     if class_is_predicate_p
1593     then
1594         if class_is_multiarch_p
1595         then
1596             printf "  fprintf_unfiltered (file,\n"
1597             printf "                      \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1598             printf "                      gdbarch_${function}_p (current_gdbarch));\n"
1599         else
1600             printf "#ifdef ${macro}_P\n"
1601             printf "  fprintf_unfiltered (file,\n"
1602             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1603             printf "                      \"${macro}_P()\",\n"
1604             printf "                      XSTRING (${macro}_P ()));\n"
1605             printf "  fprintf_unfiltered (file,\n"
1606             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1607             printf "                      ${macro}_P ());\n"
1608             printf "#endif\n"
1609         fi
1610     fi
1611     # multiarch functions don't have macros.
1612     if class_is_multiarch_p
1613     then
1614         printf "  fprintf_unfiltered (file,\n"
1615         printf "                      \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1616         printf "                      (long) current_gdbarch->${function});\n"
1617         continue
1618     fi
1619     # Print the macro definition.
1620     printf "#ifdef ${macro}\n"
1621     if class_is_function_p
1622     then
1623         printf "  fprintf_unfiltered (file,\n"
1624         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1625         printf "                      \"${macro}(${actual})\",\n"
1626         printf "                      XSTRING (${macro} (${actual})));\n"
1627     else
1628         printf "  fprintf_unfiltered (file,\n"
1629         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1630         printf "                      XSTRING (${macro}));\n"
1631     fi
1632     if [ "x${print_p}" = "x()" ]
1633     then
1634         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1635     elif [ "x${print_p}" = "x0" ]
1636     then
1637         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1638     elif [ -n "${print_p}" ]
1639     then
1640         printf "  if (${print_p})\n"
1641         printf "    fprintf_unfiltered (file,\n"
1642         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1643         printf "                        ${print});\n"
1644     elif class_is_function_p
1645     then
1646         printf "  fprintf_unfiltered (file,\n"
1647         printf "                      \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1648         printf "                      (long) current_gdbarch->${function}\n"
1649         printf "                      /*${macro} ()*/);\n"
1650     else
1651         printf "  fprintf_unfiltered (file,\n"
1652         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1653         printf "                      ${print});\n"
1654     fi
1655     printf "#endif\n"
1656 done
1657 cat <<EOF
1658   if (current_gdbarch->dump_tdep != NULL)
1659     current_gdbarch->dump_tdep (current_gdbarch, file);
1660 }
1661 EOF
1662
1663
1664 # GET/SET
1665 printf "\n"
1666 cat <<EOF
1667 struct gdbarch_tdep *
1668 gdbarch_tdep (struct gdbarch *gdbarch)
1669 {
1670   if (gdbarch_debug >= 2)
1671     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1672   return gdbarch->tdep;
1673 }
1674 EOF
1675 printf "\n"
1676 function_list | while do_read
1677 do
1678     if class_is_predicate_p
1679     then
1680         printf "\n"
1681         printf "int\n"
1682         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1683         printf "{\n"
1684         printf "  gdb_assert (gdbarch != NULL);\n"
1685         printf "  return ${predicate};\n"
1686         printf "}\n"
1687     fi
1688     if class_is_function_p
1689     then
1690         printf "\n"
1691         printf "${returntype}\n"
1692         if [ "x${formal}" = "xvoid" ]
1693         then
1694           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1695         else
1696           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1697         fi
1698         printf "{\n"
1699         printf "  gdb_assert (gdbarch != NULL);\n"
1700         printf "  gdb_assert (gdbarch->${function} != NULL);\n"
1701         if class_is_predicate_p && test -n "${predefault}"
1702         then
1703             # Allow a call to a function with a predicate.
1704             printf "  /* Do not check predicate: ${predicate}, allow call.  */\n"
1705         fi
1706         printf "  if (gdbarch_debug >= 2)\n"
1707         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1708         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1709         then
1710             if class_is_multiarch_p
1711             then
1712                 params="gdbarch"
1713             else
1714                 params=""
1715             fi
1716         else
1717             if class_is_multiarch_p
1718             then
1719                 params="gdbarch, ${actual}"
1720             else
1721                 params="${actual}"
1722             fi
1723         fi
1724         if [ "x${returntype}" = "xvoid" ]
1725         then
1726           printf "  gdbarch->${function} (${params});\n"
1727         else
1728           printf "  return gdbarch->${function} (${params});\n"
1729         fi
1730         printf "}\n"
1731         printf "\n"
1732         printf "void\n"
1733         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1734         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1735         printf "{\n"
1736         printf "  gdbarch->${function} = ${function};\n"
1737         printf "}\n"
1738     elif class_is_variable_p
1739     then
1740         printf "\n"
1741         printf "${returntype}\n"
1742         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1743         printf "{\n"
1744         printf "  gdb_assert (gdbarch != NULL);\n"
1745         if [ "x${invalid_p}" = "x0" ]
1746         then
1747             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1748         elif [ -n "${invalid_p}" ]
1749         then
1750             printf "  /* Check variable is valid.  */\n"
1751             printf "  gdb_assert (!(${invalid_p}));\n"
1752         elif [ -n "${predefault}" ]
1753         then
1754             printf "  /* Check variable changed from pre-default.  */\n"
1755             printf "  gdb_assert (gdbarch->${function} != ${predefault});\n"
1756         fi
1757         printf "  if (gdbarch_debug >= 2)\n"
1758         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1759         printf "  return gdbarch->${function};\n"
1760         printf "}\n"
1761         printf "\n"
1762         printf "void\n"
1763         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1764         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1765         printf "{\n"
1766         printf "  gdbarch->${function} = ${function};\n"
1767         printf "}\n"
1768     elif class_is_info_p
1769     then
1770         printf "\n"
1771         printf "${returntype}\n"
1772         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1773         printf "{\n"
1774         printf "  gdb_assert (gdbarch != NULL);\n"
1775         printf "  if (gdbarch_debug >= 2)\n"
1776         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1777         printf "  return gdbarch->${function};\n"
1778         printf "}\n"
1779     fi
1780 done
1781
1782 # All the trailing guff
1783 cat <<EOF
1784
1785
1786 /* Keep a registry of per-architecture data-pointers required by GDB
1787    modules. */
1788
1789 struct gdbarch_data
1790 {
1791   unsigned index;
1792   int init_p;
1793   gdbarch_data_init_ftype *init;
1794 };
1795
1796 struct gdbarch_data_registration
1797 {
1798   struct gdbarch_data *data;
1799   struct gdbarch_data_registration *next;
1800 };
1801
1802 struct gdbarch_data_registry
1803 {
1804   unsigned nr;
1805   struct gdbarch_data_registration *registrations;
1806 };
1807
1808 struct gdbarch_data_registry gdbarch_data_registry =
1809 {
1810   0, NULL,
1811 };
1812
1813 struct gdbarch_data *
1814 register_gdbarch_data (gdbarch_data_init_ftype *init)
1815 {
1816   struct gdbarch_data_registration **curr;
1817   /* Append the new registraration.  */
1818   for (curr = &gdbarch_data_registry.registrations;
1819        (*curr) != NULL;
1820        curr = &(*curr)->next);
1821   (*curr) = XMALLOC (struct gdbarch_data_registration);
1822   (*curr)->next = NULL;
1823   (*curr)->data = XMALLOC (struct gdbarch_data);
1824   (*curr)->data->index = gdbarch_data_registry.nr++;
1825   (*curr)->data->init = init;
1826   (*curr)->data->init_p = 1;
1827   return (*curr)->data;
1828 }
1829
1830
1831 /* Create/delete the gdbarch data vector. */
1832
1833 static void
1834 alloc_gdbarch_data (struct gdbarch *gdbarch)
1835 {
1836   gdb_assert (gdbarch->data == NULL);
1837   gdbarch->nr_data = gdbarch_data_registry.nr;
1838   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1839 }
1840
1841 /* Initialize the current value of the specified per-architecture
1842    data-pointer. */
1843
1844 void
1845 set_gdbarch_data (struct gdbarch *gdbarch,
1846                   struct gdbarch_data *data,
1847                   void *pointer)
1848 {
1849   gdb_assert (data->index < gdbarch->nr_data);
1850   gdb_assert (gdbarch->data[data->index] == NULL);
1851   gdbarch->data[data->index] = pointer;
1852 }
1853
1854 /* Return the current value of the specified per-architecture
1855    data-pointer. */
1856
1857 void *
1858 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1859 {
1860   gdb_assert (data->index < gdbarch->nr_data);
1861   /* The data-pointer isn't initialized, call init() to get a value but
1862      only if the architecture initializaiton has completed.  Otherwise
1863      punt - hope that the caller knows what they are doing.  */
1864   if (gdbarch->data[data->index] == NULL
1865       && gdbarch->initialized_p)
1866     {
1867       /* Be careful to detect an initialization cycle.  */
1868       gdb_assert (data->init_p);
1869       data->init_p = 0;
1870       gdb_assert (data->init != NULL);
1871       gdbarch->data[data->index] = data->init (gdbarch);
1872       data->init_p = 1;
1873       gdb_assert (gdbarch->data[data->index] != NULL);
1874     }
1875   return gdbarch->data[data->index];
1876 }
1877
1878
1879
1880 /* Keep a registry of swapped data required by GDB modules. */
1881
1882 struct gdbarch_swap
1883 {
1884   void *swap;
1885   struct gdbarch_swap_registration *source;
1886   struct gdbarch_swap *next;
1887 };
1888
1889 struct gdbarch_swap_registration
1890 {
1891   void *data;
1892   unsigned long sizeof_data;
1893   gdbarch_swap_ftype *init;
1894   struct gdbarch_swap_registration *next;
1895 };
1896
1897 struct gdbarch_swap_registry
1898 {
1899   int nr;
1900   struct gdbarch_swap_registration *registrations;
1901 };
1902
1903 struct gdbarch_swap_registry gdbarch_swap_registry =
1904 {
1905   0, NULL,
1906 };
1907
1908 void
1909 register_gdbarch_swap (void *data,
1910                        unsigned long sizeof_data,
1911                        gdbarch_swap_ftype *init)
1912 {
1913   struct gdbarch_swap_registration **rego;
1914   for (rego = &gdbarch_swap_registry.registrations;
1915        (*rego) != NULL;
1916        rego = &(*rego)->next);
1917   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1918   (*rego)->next = NULL;
1919   (*rego)->init = init;
1920   (*rego)->data = data;
1921   (*rego)->sizeof_data = sizeof_data;
1922 }
1923
1924 static void
1925 clear_gdbarch_swap (struct gdbarch *gdbarch)
1926 {
1927   struct gdbarch_swap *curr;
1928   for (curr = gdbarch->swap;
1929        curr != NULL;
1930        curr = curr->next)
1931     {
1932       memset (curr->source->data, 0, curr->source->sizeof_data);
1933     }
1934 }
1935
1936 static void
1937 init_gdbarch_swap (struct gdbarch *gdbarch)
1938 {
1939   struct gdbarch_swap_registration *rego;
1940   struct gdbarch_swap **curr = &gdbarch->swap;
1941   for (rego = gdbarch_swap_registry.registrations;
1942        rego != NULL;
1943        rego = rego->next)
1944     {
1945       if (rego->data != NULL)
1946         {
1947           (*curr) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct gdbarch_swap);
1948           (*curr)->source = rego;
1949           (*curr)->swap = gdbarch_obstack_zalloc (gdbarch, rego->sizeof_data);
1950           (*curr)->next = NULL;
1951           curr = &(*curr)->next;
1952         }
1953       if (rego->init != NULL)
1954         rego->init ();
1955     }
1956 }
1957
1958 static void
1959 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1960 {
1961   struct gdbarch_swap *curr;
1962   for (curr = gdbarch->swap;
1963        curr != NULL;
1964        curr = curr->next)
1965     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1966 }
1967
1968 static void
1969 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1970 {
1971   struct gdbarch_swap *curr;
1972   for (curr = gdbarch->swap;
1973        curr != NULL;
1974        curr = curr->next)
1975     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1976 }
1977
1978
1979 /* Keep a registry of the architectures known by GDB. */
1980
1981 struct gdbarch_registration
1982 {
1983   enum bfd_architecture bfd_architecture;
1984   gdbarch_init_ftype *init;
1985   gdbarch_dump_tdep_ftype *dump_tdep;
1986   struct gdbarch_list *arches;
1987   struct gdbarch_registration *next;
1988 };
1989
1990 static struct gdbarch_registration *gdbarch_registry = NULL;
1991
1992 static void
1993 append_name (const char ***buf, int *nr, const char *name)
1994 {
1995   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1996   (*buf)[*nr] = name;
1997   *nr += 1;
1998 }
1999
2000 const char **
2001 gdbarch_printable_names (void)
2002 {
2003   /* Accumulate a list of names based on the registed list of
2004      architectures. */
2005   enum bfd_architecture a;
2006   int nr_arches = 0;
2007   const char **arches = NULL;
2008   struct gdbarch_registration *rego;
2009   for (rego = gdbarch_registry;
2010        rego != NULL;
2011        rego = rego->next)
2012     {
2013       const struct bfd_arch_info *ap;
2014       ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2015       if (ap == NULL)
2016         internal_error (__FILE__, __LINE__,
2017                         "gdbarch_architecture_names: multi-arch unknown");
2018       do
2019         {
2020           append_name (&arches, &nr_arches, ap->printable_name);
2021           ap = ap->next;
2022         }
2023       while (ap != NULL);
2024     }
2025   append_name (&arches, &nr_arches, NULL);
2026   return arches;
2027 }
2028
2029
2030 void
2031 gdbarch_register (enum bfd_architecture bfd_architecture,
2032                   gdbarch_init_ftype *init,
2033                   gdbarch_dump_tdep_ftype *dump_tdep)
2034 {
2035   struct gdbarch_registration **curr;
2036   const struct bfd_arch_info *bfd_arch_info;
2037   /* Check that BFD recognizes this architecture */
2038   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2039   if (bfd_arch_info == NULL)
2040     {
2041       internal_error (__FILE__, __LINE__,
2042                       "gdbarch: Attempt to register unknown architecture (%d)",
2043                       bfd_architecture);
2044     }
2045   /* Check that we haven't seen this architecture before */
2046   for (curr = &gdbarch_registry;
2047        (*curr) != NULL;
2048        curr = &(*curr)->next)
2049     {
2050       if (bfd_architecture == (*curr)->bfd_architecture)
2051         internal_error (__FILE__, __LINE__,
2052                         "gdbarch: Duplicate registraration of architecture (%s)",
2053                         bfd_arch_info->printable_name);
2054     }
2055   /* log it */
2056   if (gdbarch_debug)
2057     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2058                         bfd_arch_info->printable_name,
2059                         (long) init);
2060   /* Append it */
2061   (*curr) = XMALLOC (struct gdbarch_registration);
2062   (*curr)->bfd_architecture = bfd_architecture;
2063   (*curr)->init = init;
2064   (*curr)->dump_tdep = dump_tdep;
2065   (*curr)->arches = NULL;
2066   (*curr)->next = NULL;
2067 }
2068
2069 void
2070 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2071                        gdbarch_init_ftype *init)
2072 {
2073   gdbarch_register (bfd_architecture, init, NULL);
2074 }
2075
2076
2077 /* Look for an architecture using gdbarch_info.  Base search on only
2078    BFD_ARCH_INFO and BYTE_ORDER. */
2079
2080 struct gdbarch_list *
2081 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2082                              const struct gdbarch_info *info)
2083 {
2084   for (; arches != NULL; arches = arches->next)
2085     {
2086       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2087         continue;
2088       if (info->byte_order != arches->gdbarch->byte_order)
2089         continue;
2090       if (info->osabi != arches->gdbarch->osabi)
2091         continue;
2092       return arches;
2093     }
2094   return NULL;
2095 }
2096
2097
2098 /* Update the current architecture. Return ZERO if the update request
2099    failed. */
2100
2101 int
2102 gdbarch_update_p (struct gdbarch_info info)
2103 {
2104   struct gdbarch *new_gdbarch;
2105   struct gdbarch *old_gdbarch;
2106   struct gdbarch_registration *rego;
2107
2108   /* Fill in missing parts of the INFO struct using a number of
2109      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
2110
2111   /* \`\`(gdb) set architecture ...'' */
2112   if (info.bfd_arch_info == NULL
2113       && !TARGET_ARCHITECTURE_AUTO)
2114     info.bfd_arch_info = TARGET_ARCHITECTURE;
2115   if (info.bfd_arch_info == NULL
2116       && info.abfd != NULL
2117       && bfd_get_arch (info.abfd) != bfd_arch_unknown
2118       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2119     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2120   if (info.bfd_arch_info == NULL)
2121     info.bfd_arch_info = TARGET_ARCHITECTURE;
2122
2123   /* \`\`(gdb) set byte-order ...'' */
2124   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2125       && !TARGET_BYTE_ORDER_AUTO)
2126     info.byte_order = TARGET_BYTE_ORDER;
2127   /* From the INFO struct. */
2128   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2129       && info.abfd != NULL)
2130     info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2131                        : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2132                        : BFD_ENDIAN_UNKNOWN);
2133   /* From the current target. */
2134   if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2135     info.byte_order = TARGET_BYTE_ORDER;
2136
2137   /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi.  */
2138   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2139     info.osabi = gdbarch_lookup_osabi (info.abfd);
2140   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2141     info.osabi = current_gdbarch->osabi;
2142
2143   /* Must have found some sort of architecture. */
2144   gdb_assert (info.bfd_arch_info != NULL);
2145
2146   if (gdbarch_debug)
2147     {
2148       fprintf_unfiltered (gdb_stdlog,
2149                           "gdbarch_update: info.bfd_arch_info %s\n",
2150                           (info.bfd_arch_info != NULL
2151                            ? info.bfd_arch_info->printable_name
2152                            : "(null)"));
2153       fprintf_unfiltered (gdb_stdlog,
2154                           "gdbarch_update: info.byte_order %d (%s)\n",
2155                           info.byte_order,
2156                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2157                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2158                            : "default"));
2159       fprintf_unfiltered (gdb_stdlog,
2160                           "gdbarch_update: info.osabi %d (%s)\n",
2161                           info.osabi, gdbarch_osabi_name (info.osabi));
2162       fprintf_unfiltered (gdb_stdlog,
2163                           "gdbarch_update: info.abfd 0x%lx\n",
2164                           (long) info.abfd);
2165       fprintf_unfiltered (gdb_stdlog,
2166                           "gdbarch_update: info.tdep_info 0x%lx\n",
2167                           (long) info.tdep_info);
2168     }
2169
2170   /* Find the target that knows about this architecture. */
2171   for (rego = gdbarch_registry;
2172        rego != NULL;
2173        rego = rego->next)
2174     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2175       break;
2176   if (rego == NULL)
2177     {
2178       if (gdbarch_debug)
2179         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2180       return 0;
2181     }
2182
2183   /* Swap the data belonging to the old target out setting the
2184      installed data to zero.  This stops the ->init() function trying
2185      to refer to the previous architecture's global data structures.  */
2186   swapout_gdbarch_swap (current_gdbarch);
2187   clear_gdbarch_swap (current_gdbarch);
2188
2189   /* Save the previously selected architecture, setting the global to
2190      NULL.  This stops ->init() trying to use the previous
2191      architecture's configuration.  The previous architecture may not
2192      even be of the same architecture family.  The most recent
2193      architecture of the same family is found at the head of the
2194      rego->arches list.  */
2195   old_gdbarch = current_gdbarch;
2196   current_gdbarch = NULL;
2197
2198   /* Ask the target for a replacement architecture. */
2199   new_gdbarch = rego->init (info, rego->arches);
2200
2201   /* Did the target like it?  No. Reject the change and revert to the
2202      old architecture.  */
2203   if (new_gdbarch == NULL)
2204     {
2205       if (gdbarch_debug)
2206         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2207       swapin_gdbarch_swap (old_gdbarch);
2208       current_gdbarch = old_gdbarch;
2209       return 0;
2210     }
2211
2212   /* Did the architecture change?  No.  Oops, put the old architecture
2213      back.  */
2214   if (old_gdbarch == new_gdbarch)
2215     {
2216       if (gdbarch_debug)
2217         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2218                             (long) new_gdbarch,
2219                             new_gdbarch->bfd_arch_info->printable_name);
2220       swapin_gdbarch_swap (old_gdbarch);
2221       current_gdbarch = old_gdbarch;
2222       return 1;
2223     }
2224
2225   /* Is this a pre-existing architecture?  Yes. Move it to the front
2226      of the list of architectures (keeping the list sorted Most
2227      Recently Used) and then copy it in.  */
2228   {
2229     struct gdbarch_list **list;
2230     for (list = &rego->arches;
2231          (*list) != NULL;
2232          list = &(*list)->next)
2233       {
2234         if ((*list)->gdbarch == new_gdbarch)
2235           {
2236             struct gdbarch_list *this;
2237             if (gdbarch_debug)
2238               fprintf_unfiltered (gdb_stdlog,
2239                                   "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2240                                   (long) new_gdbarch,
2241                                   new_gdbarch->bfd_arch_info->printable_name);
2242             /* Unlink this.  */
2243             this = (*list);
2244             (*list) = this->next;
2245             /* Insert in the front.  */
2246             this->next = rego->arches;
2247             rego->arches = this;
2248             /* Copy the new architecture in.  */
2249             current_gdbarch = new_gdbarch;
2250             swapin_gdbarch_swap (new_gdbarch);
2251             architecture_changed_event ();
2252             return 1;
2253           }
2254       }
2255   }
2256
2257   /* Prepend this new architecture to the architecture list (keep the
2258      list sorted Most Recently Used).  */
2259   {
2260     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2261     this->next = rego->arches;
2262     this->gdbarch = new_gdbarch;
2263     rego->arches = this;
2264   }
2265
2266   /* Switch to this new architecture marking it initialized.  */
2267   current_gdbarch = new_gdbarch;
2268   current_gdbarch->initialized_p = 1;
2269   if (gdbarch_debug)
2270     {
2271       fprintf_unfiltered (gdb_stdlog,
2272                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2273                           (long) new_gdbarch,
2274                           new_gdbarch->bfd_arch_info->printable_name);
2275     }
2276
2277   /* Check that the newly installed architecture is valid.  Plug in
2278      any post init values.  */
2279   new_gdbarch->dump_tdep = rego->dump_tdep;
2280   verify_gdbarch (new_gdbarch);
2281
2282   /* Initialize the per-architecture memory (swap) areas.
2283      CURRENT_GDBARCH must be update before these modules are
2284      called. */
2285   init_gdbarch_swap (new_gdbarch);
2286
2287   /* Initialize the per-architecture data.  CURRENT_GDBARCH
2288      must be updated before these modules are called. */
2289   architecture_changed_event ();
2290
2291   if (gdbarch_debug)
2292     gdbarch_dump (current_gdbarch, gdb_stdlog);
2293
2294   return 1;
2295 }
2296
2297
2298 extern void _initialize_gdbarch (void);
2299
2300 void
2301 _initialize_gdbarch (void)
2302 {
2303   struct cmd_list_element *c;
2304
2305   add_show_from_set (add_set_cmd ("arch",
2306                                   class_maintenance,
2307                                   var_zinteger,
2308                                   (char *)&gdbarch_debug,
2309                                   "Set architecture debugging.\\n\\
2310 When non-zero, architecture debugging is enabled.", &setdebuglist),
2311                      &showdebuglist);
2312   c = add_set_cmd ("archdebug",
2313                    class_maintenance,
2314                    var_zinteger,
2315                    (char *)&gdbarch_debug,
2316                    "Set architecture debugging.\\n\\
2317 When non-zero, architecture debugging is enabled.", &setlist);
2318
2319   deprecate_cmd (c, "set debug arch");
2320   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2321 }
2322 EOF
2323
2324 # close things off
2325 exec 1>&2
2326 #../move-if-change new-gdbarch.c gdbarch.c
2327 compare_new gdbarch.c