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 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
 676 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 677
 678
 679 # For SVR4 shared libraries, each call goes through a small piece of
 680 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 681 # to nonzero if we are currently stopped in one of these.
 682 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 683
 684 # Some systems also have trampoline code for returning from shared libs.
 685 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 686
 687 # Sigtramp is a routine that the kernel calls (which then calls the
 688 # signal handler).  On most machines it is a library routine that is
 689 # linked into the executable.
 690 #
 691 # This macro, given a program counter value and the name of the
 692 # function in which that PC resides (which can be null if the name is
 693 # not known), returns nonzero if the PC and name show that we are in
 694 # sigtramp.
 695 #
 696 # On most machines just see if the name is sigtramp (and if we have
 697 # no name, assume we are not in sigtramp).
 698 #
 699 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 700 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 701 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 702 # own local NAME lookup.
 703 #
 704 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 705 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 706 # does not.
 707 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 708 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 709 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 710 # A target might have problems with watchpoints as soon as the stack
 711 # frame of the current function has been destroyed.  This mostly happens
 712 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 713 # is defined to return a non-zero value if either the given addr is one
 714 # instruction after the stack destroying instruction up to the trailing
 715 # return instruction or if we can figure out that the stack frame has
 716 # already been invalidated regardless of the value of addr.  Targets
 717 # which don't suffer from that problem could just let this functionality
 718 # untouched.
 719 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 720 # Given a vector of command-line arguments, return a newly allocated
 721 # string which, when passed to the create_inferior function, will be
 722 # parsed (on Unix systems, by the shell) to yield the same vector.
 723 # This function should call error() if the argument vector is not
 724 # representable for this target or if this target does not support
 725 # command-line arguments.
 726 # ARGC is the number of elements in the vector.
 727 # ARGV is an array of strings, one per argument.
 728 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 729 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
 730 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
 731 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 732 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 733 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 734 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 735 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
 736 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
 737 # Is a register in a group
 738 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 739 # Fetch the pointer to the ith function argument.
 740 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 741 EOF
 742 }
 743
 744 #
 745 # The .log file
 746 #
 747 exec > new-gdbarch.log
 748 function_list | while do_read
 749 do
 750     cat <<EOF
 751 ${class} ${macro}(${actual})
 752   ${returntype} ${function} ($formal)${attrib}
 753 EOF
 754     for r in ${read}
 755     do
 756         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 757     done
 758     if class_is_predicate_p && fallback_default_p
 759     then
 760         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 761         kill $$
 762         exit 1
 763     fi
 764     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 765     then
 766         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 767         kill $$
 768         exit 1
 769     fi
 770     if class_is_multiarch_p
 771     then
 772         if class_is_predicate_p ; then :
 773         elif test "x${predefault}" = "x"
 774         then
 775             echo "Error: pure multi-arch function must have a predefault" 1>&2
 776             kill $$
 777             exit 1
 778         fi
 779     fi
 780     echo ""
 781 done
 782
 783 exec 1>&2
 784 compare_new gdbarch.log
 785
 786
 787 copyright ()
 788 {
 789 cat <<EOF
 790 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 791
 792 /* Dynamic architecture support for GDB, the GNU debugger.
 793    Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 794
 795    This file is part of GDB.
 796
 797    This program is free software; you can redistribute it and/or modify
 798    it under the terms of the GNU General Public License as published by
 799    the Free Software Foundation; either version 2 of the License, or
 800    (at your option) any later version.
 801
 802    This program is distributed in the hope that it will be useful,
 803    but WITHOUT ANY WARRANTY; without even the implied warranty of
 804    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 805    GNU General Public License for more details.
 806
 807    You should have received a copy of the GNU General Public License
 808    along with this program; if not, write to the Free Software
 809    Foundation, Inc., 59 Temple Place - Suite 330,
 810    Boston, MA 02111-1307, USA.  */
 811
 812 /* This file was created with the aid of \`\`gdbarch.sh''.
 813
 814    The Bourne shell script \`\`gdbarch.sh'' creates the files
 815    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 816    against the existing \`\`gdbarch.[hc]''.  Any differences found
 817    being reported.
 818
 819    If editing this file, please also run gdbarch.sh and merge any
 820    changes into that script. Conversely, when making sweeping changes
 821    to this file, modifying gdbarch.sh and using its output may prove
 822    easier. */
 823
 824 EOF
 825 }
 826
 827 #
 828 # The .h file
 829 #
 830
 831 exec > new-gdbarch.h
 832 copyright
 833 cat <<EOF
 834 #ifndef GDBARCH_H
 835 #define GDBARCH_H
 836
 837 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
 838
 839 struct floatformat;
 840 struct ui_file;
 841 struct frame_info;
 842 struct value;
 843 struct objfile;
 844 struct minimal_symbol;
 845 struct regcache;
 846 struct reggroup;
 847
 848 extern struct gdbarch *current_gdbarch;
 849
 850
 851 /* If any of the following are defined, the target wasn't correctly
 852    converted. */
 853
 854 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 855 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 856 #endif
 857 EOF
 858
 859 # function typedef's
 860 printf "\n"
 861 printf "\n"
 862 printf "/* The following are pre-initialized by GDBARCH. */\n"
 863 function_list | while do_read
 864 do
 865     if class_is_info_p
 866     then
 867         printf "\n"
 868         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 869         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 870         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 871         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 872         printf "#endif\n"
 873         printf "#if !defined (${macro})\n"
 874         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 875         printf "#endif\n"
 876     fi
 877 done
 878
 879 # function typedef's
 880 printf "\n"
 881 printf "\n"
 882 printf "/* The following are initialized by the target dependent code. */\n"
 883 function_list | while do_read
 884 do
 885     if [ -n "${comment}" ]
 886     then
 887         echo "${comment}" | sed \
 888             -e '2 s,#,/*,' \
 889             -e '3,$ s,#,  ,' \
 890             -e '$ s,$, */,'
 891     fi
 892     if class_is_multiarch_p
 893     then
 894         if class_is_predicate_p
 895         then
 896             printf "\n"
 897             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 898         fi
 899     else
 900         if class_is_predicate_p
 901         then
 902             printf "\n"
 903             printf "#if defined (${macro})\n"
 904             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 905             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 906             printf "#if !defined (${macro}_P)\n"
 907             printf "#define ${macro}_P() (1)\n"
 908             printf "#endif\n"
 909             printf "#endif\n"
 910             printf "\n"
 911             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 912             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 913             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 914             printf "#endif\n"
 915             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 916             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 917             printf "#endif\n"
 918         fi
 919     fi
 920     if class_is_variable_p
 921     then
 922         printf "\n"
 923         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 924         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 925         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 926         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 927         printf "#endif\n"
 928         printf "#if !defined (${macro})\n"
 929         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 930         printf "#endif\n"
 931     fi
 932     if class_is_function_p
 933     then
 934         printf "\n"
 935         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 936         then
 937             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 938         elif class_is_multiarch_p
 939         then
 940             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 941         else
 942             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 943         fi
 944         if [ "x${formal}" = "xvoid" ]
 945         then
 946           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 947         else
 948           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 949         fi
 950         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 951         if class_is_multiarch_p ; then :
 952         else
 953             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 954             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 955             printf "#endif\n"
 956             if [ "x${actual}" = "x" ]
 957             then
 958                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
 959             elif [ "x${actual}" = "x-" ]
 960             then
 961                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
 962             else
 963                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
 964             fi
 965             printf "#if !defined (${macro})\n"
 966             if [ "x${actual}" = "x" ]
 967             then
 968                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 969             elif [ "x${actual}" = "x-" ]
 970             then
 971                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 972             else
 973                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
 974             fi
 975             printf "#endif\n"
 976         fi
 977     fi
 978 done
 979
 980 # close it off
 981 cat <<EOF
 982
 983 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 984
 985
 986 /* Mechanism for co-ordinating the selection of a specific
 987    architecture.
 988
 989    GDB targets (*-tdep.c) can register an interest in a specific
 990    architecture.  Other GDB components can register a need to maintain
 991    per-architecture data.
 992
 993    The mechanisms below ensures that there is only a loose connection
 994    between the set-architecture command and the various GDB
 995    components.  Each component can independently register their need
 996    to maintain architecture specific data with gdbarch.
 997
 998    Pragmatics:
 999
1000    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1001    didn't scale.
1002
1003    The more traditional mega-struct containing architecture specific
1004    data for all the various GDB components was also considered.  Since
1005    GDB is built from a variable number of (fairly independent)
1006    components it was determined that the global aproach was not
1007    applicable. */
1008
1009
1010 /* Register a new architectural family with GDB.
1011
1012    Register support for the specified ARCHITECTURE with GDB.  When
1013    gdbarch determines that the specified architecture has been
1014    selected, the corresponding INIT function is called.
1015
1016    --
1017
1018    The INIT function takes two parameters: INFO which contains the
1019    information available to gdbarch about the (possibly new)
1020    architecture; ARCHES which is a list of the previously created
1021    \`\`struct gdbarch'' for this architecture.
1022
1023    The INFO parameter is, as far as possible, be pre-initialized with
1024    information obtained from INFO.ABFD or the previously selected
1025    architecture.
1026
1027    The ARCHES parameter is a linked list (sorted most recently used)
1028    of all the previously created architures for this architecture
1029    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1030    values from the previously selected architecture for this
1031    architecture family.  The global \`\`current_gdbarch'' shall not be
1032    used.
1033
1034    The INIT function shall return any of: NULL - indicating that it
1035    doesn't recognize the selected architecture; an existing \`\`struct
1036    gdbarch'' from the ARCHES list - indicating that the new
1037    architecture is just a synonym for an earlier architecture (see
1038    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1039    - that describes the selected architecture (see gdbarch_alloc()).
1040
1041    The DUMP_TDEP function shall print out all target specific values.
1042    Care should be taken to ensure that the function works in both the
1043    multi-arch and non- multi-arch cases. */
1044
1045 struct gdbarch_list
1046 {
1047   struct gdbarch *gdbarch;
1048   struct gdbarch_list *next;
1049 };
1050
1051 struct gdbarch_info
1052 {
1053   /* Use default: NULL (ZERO). */
1054   const struct bfd_arch_info *bfd_arch_info;
1055
1056   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1057   int byte_order;
1058
1059   /* Use default: NULL (ZERO). */
1060   bfd *abfd;
1061
1062   /* Use default: NULL (ZERO). */
1063   struct gdbarch_tdep_info *tdep_info;
1064
1065   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1066   enum gdb_osabi osabi;
1067 };
1068
1069 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1070 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1071
1072 /* DEPRECATED - use gdbarch_register() */
1073 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1074
1075 extern void gdbarch_register (enum bfd_architecture architecture,
1076                               gdbarch_init_ftype *,
1077                               gdbarch_dump_tdep_ftype *);
1078
1079
1080 /* Return a freshly allocated, NULL terminated, array of the valid
1081    architecture names.  Since architectures are registered during the
1082    _initialize phase this function only returns useful information
1083    once initialization has been completed. */
1084
1085 extern const char **gdbarch_printable_names (void);
1086
1087
1088 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1089    matches the information provided by INFO. */
1090
1091 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1092
1093
1094 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1095    basic initialization using values obtained from the INFO andTDEP
1096    parameters.  set_gdbarch_*() functions are called to complete the
1097    initialization of the object. */
1098
1099 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1100
1101
1102 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1103    It is assumed that the caller freeds the \`\`struct
1104    gdbarch_tdep''. */
1105
1106 extern void gdbarch_free (struct gdbarch *);
1107
1108
1109 /* Helper function.  Allocate memory from the \`\`struct gdbarch''
1110    obstack.  The memory is freed when the corresponding architecture
1111    is also freed.  */
1112
1113 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1114 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1115 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1116
1117
1118 /* Helper function. Force an update of the current architecture.
1119
1120    The actual architecture selected is determined by INFO, \`\`(gdb) set
1121    architecture'' et.al., the existing architecture and BFD's default
1122    architecture.  INFO should be initialized to zero and then selected
1123    fields should be updated.
1124
1125    Returns non-zero if the update succeeds */
1126
1127 extern int gdbarch_update_p (struct gdbarch_info info);
1128
1129
1130
1131 /* Register per-architecture data-pointer.
1132
1133    Reserve space for a per-architecture data-pointer.  An identifier
1134    for the reserved data-pointer is returned.  That identifer should
1135    be saved in a local static variable.
1136
1137    The per-architecture data-pointer is either initialized explicitly
1138    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1139    gdbarch_data()).
1140
1141    Memory for the per-architecture data shall be allocated using
1142    gdbarch_obstack_zalloc.  That memory will be deleted when the
1143    corresponding architecture object is deleted.
1144
1145    When a previously created architecture is re-selected, the
1146    per-architecture data-pointer for that previous architecture is
1147    restored.  INIT() is not re-called.
1148
1149    Multiple registrarants for any architecture are allowed (and
1150    strongly encouraged).  */
1151
1152 struct gdbarch_data;
1153
1154 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1155 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1156 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1157                               struct gdbarch_data *data,
1158                               void *pointer);
1159
1160 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1161
1162
1163 /* Register per-architecture memory region.
1164
1165    Provide a memory-region swap mechanism.  Per-architecture memory
1166    region are created.  These memory regions are swapped whenever the
1167    architecture is changed.  For a new architecture, the memory region
1168    is initialized with zero (0) and the INIT function is called.
1169
1170    Memory regions are swapped / initialized in the order that they are
1171    registered.  NULL DATA and/or INIT values can be specified.
1172
1173    New code should use register_gdbarch_data(). */
1174
1175 typedef void (gdbarch_swap_ftype) (void);
1176 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1177 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1178
1179
1180
1181 /* The target-system-dependent byte order is dynamic */
1182
1183 extern int target_byte_order;
1184 #ifndef TARGET_BYTE_ORDER
1185 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1186 #endif
1187
1188 extern int target_byte_order_auto;
1189 #ifndef TARGET_BYTE_ORDER_AUTO
1190 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1191 #endif
1192
1193
1194
1195 /* The target-system-dependent BFD architecture is dynamic */
1196
1197 extern int target_architecture_auto;
1198 #ifndef TARGET_ARCHITECTURE_AUTO
1199 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1200 #endif
1201
1202 extern const struct bfd_arch_info *target_architecture;
1203 #ifndef TARGET_ARCHITECTURE
1204 #define TARGET_ARCHITECTURE (target_architecture + 0)
1205 #endif
1206
1207
1208 /* The target-system-dependent disassembler is semi-dynamic */
1209
1210 /* Use gdb_disassemble, and gdbarch_print_insn instead.  */
1211 extern int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info*);
1212
1213 /* Use set_gdbarch_print_insn instead.  */
1214 extern disassemble_info deprecated_tm_print_insn_info;
1215
1216 /* Set the dynamic target-system-dependent parameters (architecture,
1217    byte-order, ...) using information found in the BFD */
1218
1219 extern void set_gdbarch_from_file (bfd *);
1220
1221
1222 /* Initialize the current architecture to the "first" one we find on
1223    our list.  */
1224
1225 extern void initialize_current_architecture (void);
1226
1227 /* For non-multiarched targets, do any initialization of the default
1228    gdbarch object necessary after the _initialize_MODULE functions
1229    have run.  */
1230 extern void initialize_non_multiarch (void);
1231
1232 /* gdbarch trace variable */
1233 extern int gdbarch_debug;
1234
1235 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1236
1237 #endif
1238 EOF
1239 exec 1>&2
1240 #../move-if-change new-gdbarch.h gdbarch.h
1241 compare_new gdbarch.h
1242
1243
1244 #
1245 # C file
1246 #
1247
1248 exec > new-gdbarch.c
1249 copyright
1250 cat <<EOF
1251
1252 #include "defs.h"
1253 #include "arch-utils.h"
1254
1255 #include "gdbcmd.h"
1256 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1257 #include "symcat.h"
1258
1259 #include "floatformat.h"
1260
1261 #include "gdb_assert.h"
1262 #include "gdb_string.h"
1263 #include "gdb-events.h"
1264 #include "reggroups.h"
1265 #include "osabi.h"
1266 #include "symfile.h"            /* For entry_point_address.  */
1267 #include "gdb_obstack.h"
1268
1269 /* Static function declarations */
1270
1271 static void verify_gdbarch (struct gdbarch *gdbarch);
1272 static void alloc_gdbarch_data (struct gdbarch *);
1273 static void init_gdbarch_swap (struct gdbarch *);
1274 static void clear_gdbarch_swap (struct gdbarch *);
1275 static void swapout_gdbarch_swap (struct gdbarch *);
1276 static void swapin_gdbarch_swap (struct gdbarch *);
1277
1278 /* Non-zero if we want to trace architecture code.  */
1279
1280 #ifndef GDBARCH_DEBUG
1281 #define GDBARCH_DEBUG 0
1282 #endif
1283 int gdbarch_debug = GDBARCH_DEBUG;
1284
1285 EOF
1286
1287 # gdbarch open the gdbarch object
1288 printf "\n"
1289 printf "/* Maintain the struct gdbarch object */\n"
1290 printf "\n"
1291 printf "struct gdbarch\n"
1292 printf "{\n"
1293 printf "  /* Has this architecture been fully initialized?  */\n"
1294 printf "  int initialized_p;\n"
1295 printf "\n"
1296 printf "  /* An obstack bound to the lifetime of the architecture.  */\n"
1297 printf "  struct obstack *obstack;\n"
1298 printf "\n"
1299 printf "  /* basic architectural information */\n"
1300 function_list | while do_read
1301 do
1302     if class_is_info_p
1303     then
1304         printf "  ${returntype} ${function};\n"
1305     fi
1306 done
1307 printf "\n"
1308 printf "  /* target specific vector. */\n"
1309 printf "  struct gdbarch_tdep *tdep;\n"
1310 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1311 printf "\n"
1312 printf "  /* per-architecture data-pointers */\n"
1313 printf "  unsigned nr_data;\n"
1314 printf "  void **data;\n"
1315 printf "\n"
1316 printf "  /* per-architecture swap-regions */\n"
1317 printf "  struct gdbarch_swap *swap;\n"
1318 printf "\n"
1319 cat <<EOF
1320   /* Multi-arch values.
1321
1322      When extending this structure you must:
1323
1324      Add the field below.
1325
1326      Declare set/get functions and define the corresponding
1327      macro in gdbarch.h.
1328
1329      gdbarch_alloc(): If zero/NULL is not a suitable default,
1330      initialize the new field.
1331
1332      verify_gdbarch(): Confirm that the target updated the field
1333      correctly.
1334
1335      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1336      field is dumped out
1337
1338      \`\`startup_gdbarch()'': Append an initial value to the static
1339      variable (base values on the host's c-type system).
1340
1341      get_gdbarch(): Implement the set/get functions (probably using
1342      the macro's as shortcuts).
1343
1344      */
1345
1346 EOF
1347 function_list | while do_read
1348 do
1349     if class_is_variable_p
1350     then
1351         printf "  ${returntype} ${function};\n"
1352     elif class_is_function_p
1353     then
1354         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1355     fi
1356 done
1357 printf "};\n"
1358
1359 # A pre-initialized vector
1360 printf "\n"
1361 printf "\n"
1362 cat <<EOF
1363 /* The default architecture uses host values (for want of a better
1364    choice). */
1365 EOF
1366 printf "\n"
1367 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1368 printf "\n"
1369 printf "struct gdbarch startup_gdbarch =\n"
1370 printf "{\n"
1371 printf "  1, /* Always initialized.  */\n"
1372 printf "  NULL, /* The obstack.  */\n"
1373 printf "  /* basic architecture information */\n"
1374 function_list | while do_read
1375 do
1376     if class_is_info_p
1377     then
1378         printf "  ${staticdefault},  /* ${function} */\n"
1379     fi
1380 done
1381 cat <<EOF
1382   /* target specific vector and its dump routine */
1383   NULL, NULL,
1384   /*per-architecture data-pointers and swap regions */
1385   0, NULL, NULL,
1386   /* Multi-arch values */
1387 EOF
1388 function_list | while do_read
1389 do
1390     if class_is_function_p || class_is_variable_p
1391     then
1392         printf "  ${staticdefault},  /* ${function} */\n"
1393     fi
1394 done
1395 cat <<EOF
1396   /* startup_gdbarch() */
1397 };
1398
1399 struct gdbarch *current_gdbarch = &startup_gdbarch;
1400
1401 /* Do any initialization needed for a non-multiarch configuration
1402    after the _initialize_MODULE functions have been run.  */
1403 void
1404 initialize_non_multiarch (void)
1405 {
1406   alloc_gdbarch_data (&startup_gdbarch);
1407   /* Ensure that all swap areas are zeroed so that they again think
1408      they are starting from scratch.  */
1409   clear_gdbarch_swap (&startup_gdbarch);
1410   init_gdbarch_swap (&startup_gdbarch);
1411 }
1412 EOF
1413
1414 # Create a new gdbarch struct
1415 printf "\n"
1416 printf "\n"
1417 cat <<EOF
1418 /* Create a new \`\`struct gdbarch'' based on information provided by
1419    \`\`struct gdbarch_info''. */
1420 EOF
1421 printf "\n"
1422 cat <<EOF
1423 struct gdbarch *
1424 gdbarch_alloc (const struct gdbarch_info *info,
1425                struct gdbarch_tdep *tdep)
1426 {
1427   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1428      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1429      the current local architecture and not the previous global
1430      architecture.  This ensures that the new architectures initial
1431      values are not influenced by the previous architecture.  Once
1432      everything is parameterised with gdbarch, this will go away.  */
1433   struct gdbarch *current_gdbarch;
1434
1435   /* Create an obstack for allocating all the per-architecture memory,
1436      then use that to allocate the architecture vector.  */
1437   struct obstack *obstack = XMALLOC (struct obstack);
1438   obstack_init (obstack);
1439   current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1440   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1441   current_gdbarch->obstack = obstack;
1442
1443   alloc_gdbarch_data (current_gdbarch);
1444
1445   current_gdbarch->tdep = tdep;
1446 EOF
1447 printf "\n"
1448 function_list | while do_read
1449 do
1450     if class_is_info_p
1451     then
1452         printf "  current_gdbarch->${function} = info->${function};\n"
1453     fi
1454 done
1455 printf "\n"
1456 printf "  /* Force the explicit initialization of these. */\n"
1457 function_list | while do_read
1458 do
1459     if class_is_function_p || class_is_variable_p
1460     then
1461         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1462         then
1463           printf "  current_gdbarch->${function} = ${predefault};\n"
1464         fi
1465     fi
1466 done
1467 cat <<EOF
1468   /* gdbarch_alloc() */
1469
1470   return current_gdbarch;
1471 }
1472 EOF
1473
1474 # Free a gdbarch struct.
1475 printf "\n"
1476 printf "\n"
1477 cat <<EOF
1478 /* Allocate extra space using the per-architecture obstack.  */
1479
1480 void *
1481 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1482 {
1483   void *data = obstack_alloc (arch->obstack, size);
1484   memset (data, 0, size);
1485   return data;
1486 }
1487
1488
1489 /* Free a gdbarch struct.  This should never happen in normal
1490    operation --- once you've created a gdbarch, you keep it around.
1491    However, if an architecture's init function encounters an error
1492    building the structure, it may need to clean up a partially
1493    constructed gdbarch.  */
1494
1495 void
1496 gdbarch_free (struct gdbarch *arch)
1497 {
1498   struct obstack *obstack;
1499   gdb_assert (arch != NULL);
1500   gdb_assert (!arch->initialized_p);
1501   obstack = arch->obstack;
1502   obstack_free (obstack, 0); /* Includes the ARCH.  */
1503   xfree (obstack);
1504 }
1505 EOF
1506
1507 # verify a new architecture
1508 printf "\n"
1509 printf "\n"
1510 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1511 printf "\n"
1512 cat <<EOF
1513 static void
1514 verify_gdbarch (struct gdbarch *gdbarch)
1515 {
1516   struct ui_file *log;
1517   struct cleanup *cleanups;
1518   long dummy;
1519   char *buf;
1520   log = mem_fileopen ();
1521   cleanups = make_cleanup_ui_file_delete (log);
1522   /* fundamental */
1523   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1524     fprintf_unfiltered (log, "\n\tbyte-order");
1525   if (gdbarch->bfd_arch_info == NULL)
1526     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1527   /* Check those that need to be defined for the given multi-arch level. */
1528 EOF
1529 function_list | while do_read
1530 do
1531     if class_is_function_p || class_is_variable_p
1532     then
1533         if [ "x${invalid_p}" = "x0" ]
1534         then
1535             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1536         elif class_is_predicate_p
1537         then
1538             printf "  /* Skip verify of ${function}, has predicate */\n"
1539         # FIXME: See do_read for potential simplification
1540         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1541         then
1542             printf "  if (${invalid_p})\n"
1543             printf "    gdbarch->${function} = ${postdefault};\n"
1544         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1545         then
1546             printf "  if (gdbarch->${function} == ${predefault})\n"
1547             printf "    gdbarch->${function} = ${postdefault};\n"
1548         elif [ -n "${postdefault}" ]
1549         then
1550             printf "  if (gdbarch->${function} == 0)\n"
1551             printf "    gdbarch->${function} = ${postdefault};\n"
1552         elif [ -n "${invalid_p}" ]
1553         then
1554             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1555             printf "      && (${invalid_p}))\n"
1556             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1557         elif [ -n "${predefault}" ]
1558         then
1559             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1560             printf "      && (gdbarch->${function} == ${predefault}))\n"
1561             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1562         fi
1563     fi
1564 done
1565 cat <<EOF
1566   buf = ui_file_xstrdup (log, &dummy);
1567   make_cleanup (xfree, buf);
1568   if (strlen (buf) > 0)
1569     internal_error (__FILE__, __LINE__,
1570                     "verify_gdbarch: the following are invalid ...%s",
1571                     buf);
1572   do_cleanups (cleanups);
1573 }
1574 EOF
1575
1576 # dump the structure
1577 printf "\n"
1578 printf "\n"
1579 cat <<EOF
1580 /* Print out the details of the current architecture. */
1581
1582 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1583    just happens to match the global variable \`\`current_gdbarch''.  That
1584    way macros refering to that variable get the local and not the global
1585    version - ulgh.  Once everything is parameterised with gdbarch, this
1586    will go away. */
1587
1588 void
1589 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1590 {
1591   fprintf_unfiltered (file,
1592                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1593                       GDB_MULTI_ARCH);
1594 EOF
1595 function_list | sort -t: -k 3 | while do_read
1596 do
1597     # First the predicate
1598     if class_is_predicate_p
1599     then
1600         if class_is_multiarch_p
1601         then
1602             printf "  fprintf_unfiltered (file,\n"
1603             printf "                      \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1604             printf "                      gdbarch_${function}_p (current_gdbarch));\n"
1605         else
1606             printf "#ifdef ${macro}_P\n"
1607             printf "  fprintf_unfiltered (file,\n"
1608             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1609             printf "                      \"${macro}_P()\",\n"
1610             printf "                      XSTRING (${macro}_P ()));\n"
1611             printf "  fprintf_unfiltered (file,\n"
1612             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1613             printf "                      ${macro}_P ());\n"
1614             printf "#endif\n"
1615         fi
1616     fi
1617     # multiarch functions don't have macros.
1618     if class_is_multiarch_p
1619     then
1620         printf "  fprintf_unfiltered (file,\n"
1621         printf "                      \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1622         printf "                      (long) current_gdbarch->${function});\n"
1623         continue
1624     fi
1625     # Print the macro definition.
1626     printf "#ifdef ${macro}\n"
1627     if class_is_function_p
1628     then
1629         printf "  fprintf_unfiltered (file,\n"
1630         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1631         printf "                      \"${macro}(${actual})\",\n"
1632         printf "                      XSTRING (${macro} (${actual})));\n"
1633     else
1634         printf "  fprintf_unfiltered (file,\n"
1635         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1636         printf "                      XSTRING (${macro}));\n"
1637     fi
1638     if [ "x${print_p}" = "x()" ]
1639     then
1640         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1641     elif [ "x${print_p}" = "x0" ]
1642     then
1643         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1644     elif [ -n "${print_p}" ]
1645     then
1646         printf "  if (${print_p})\n"
1647         printf "    fprintf_unfiltered (file,\n"
1648         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1649         printf "                        ${print});\n"
1650     elif class_is_function_p
1651     then
1652         printf "  fprintf_unfiltered (file,\n"
1653         printf "                      \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1654         printf "                      (long) current_gdbarch->${function}\n"
1655         printf "                      /*${macro} ()*/);\n"
1656     else
1657         printf "  fprintf_unfiltered (file,\n"
1658         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1659         printf "                      ${print});\n"
1660     fi
1661     printf "#endif\n"
1662 done
1663 cat <<EOF
1664   if (current_gdbarch->dump_tdep != NULL)
1665     current_gdbarch->dump_tdep (current_gdbarch, file);
1666 }
1667 EOF
1668
1669
1670 # GET/SET
1671 printf "\n"
1672 cat <<EOF
1673 struct gdbarch_tdep *
1674 gdbarch_tdep (struct gdbarch *gdbarch)
1675 {
1676   if (gdbarch_debug >= 2)
1677     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1678   return gdbarch->tdep;
1679 }
1680 EOF
1681 printf "\n"
1682 function_list | while do_read
1683 do
1684     if class_is_predicate_p
1685     then
1686         printf "\n"
1687         printf "int\n"
1688         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1689         printf "{\n"
1690         printf "  gdb_assert (gdbarch != NULL);\n"
1691         printf "  return ${predicate};\n"
1692         printf "}\n"
1693     fi
1694     if class_is_function_p
1695     then
1696         printf "\n"
1697         printf "${returntype}\n"
1698         if [ "x${formal}" = "xvoid" ]
1699         then
1700           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1701         else
1702           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1703         fi
1704         printf "{\n"
1705         printf "  gdb_assert (gdbarch != NULL);\n"
1706         printf "  gdb_assert (gdbarch->${function} != NULL);\n"
1707         if class_is_predicate_p && test -n "${predefault}"
1708         then
1709             # Allow a call to a function with a predicate.
1710             printf "  /* Do not check predicate: ${predicate}, allow call.  */\n"
1711         fi
1712         printf "  if (gdbarch_debug >= 2)\n"
1713         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1714         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1715         then
1716             if class_is_multiarch_p
1717             then
1718                 params="gdbarch"
1719             else
1720                 params=""
1721             fi
1722         else
1723             if class_is_multiarch_p
1724             then
1725                 params="gdbarch, ${actual}"
1726             else
1727                 params="${actual}"
1728             fi
1729         fi
1730         if [ "x${returntype}" = "xvoid" ]
1731         then
1732           printf "  gdbarch->${function} (${params});\n"
1733         else
1734           printf "  return gdbarch->${function} (${params});\n"
1735         fi
1736         printf "}\n"
1737         printf "\n"
1738         printf "void\n"
1739         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1740         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1741         printf "{\n"
1742         printf "  gdbarch->${function} = ${function};\n"
1743         printf "}\n"
1744     elif class_is_variable_p
1745     then
1746         printf "\n"
1747         printf "${returntype}\n"
1748         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1749         printf "{\n"
1750         printf "  gdb_assert (gdbarch != NULL);\n"
1751         if [ "x${invalid_p}" = "x0" ]
1752         then
1753             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1754         elif [ -n "${invalid_p}" ]
1755         then
1756             printf "  /* Check variable is valid.  */\n"
1757             printf "  gdb_assert (!(${invalid_p}));\n"
1758         elif [ -n "${predefault}" ]
1759         then
1760             printf "  /* Check variable changed from pre-default.  */\n"
1761             printf "  gdb_assert (gdbarch->${function} != ${predefault});\n"
1762         fi
1763         printf "  if (gdbarch_debug >= 2)\n"
1764         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1765         printf "  return gdbarch->${function};\n"
1766         printf "}\n"
1767         printf "\n"
1768         printf "void\n"
1769         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1770         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1771         printf "{\n"
1772         printf "  gdbarch->${function} = ${function};\n"
1773         printf "}\n"
1774     elif class_is_info_p
1775     then
1776         printf "\n"
1777         printf "${returntype}\n"
1778         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1779         printf "{\n"
1780         printf "  gdb_assert (gdbarch != NULL);\n"
1781         printf "  if (gdbarch_debug >= 2)\n"
1782         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1783         printf "  return gdbarch->${function};\n"
1784         printf "}\n"
1785     fi
1786 done
1787
1788 # All the trailing guff
1789 cat <<EOF
1790
1791
1792 /* Keep a registry of per-architecture data-pointers required by GDB
1793    modules. */
1794
1795 struct gdbarch_data
1796 {
1797   unsigned index;
1798   int init_p;
1799   gdbarch_data_init_ftype *init;
1800 };
1801
1802 struct gdbarch_data_registration
1803 {
1804   struct gdbarch_data *data;
1805   struct gdbarch_data_registration *next;
1806 };
1807
1808 struct gdbarch_data_registry
1809 {
1810   unsigned nr;
1811   struct gdbarch_data_registration *registrations;
1812 };
1813
1814 struct gdbarch_data_registry gdbarch_data_registry =
1815 {
1816   0, NULL,
1817 };
1818
1819 struct gdbarch_data *
1820 register_gdbarch_data (gdbarch_data_init_ftype *init)
1821 {
1822   struct gdbarch_data_registration **curr;
1823   /* Append the new registraration.  */
1824   for (curr = &gdbarch_data_registry.registrations;
1825        (*curr) != NULL;
1826        curr = &(*curr)->next);
1827   (*curr) = XMALLOC (struct gdbarch_data_registration);
1828   (*curr)->next = NULL;
1829   (*curr)->data = XMALLOC (struct gdbarch_data);
1830   (*curr)->data->index = gdbarch_data_registry.nr++;
1831   (*curr)->data->init = init;
1832   (*curr)->data->init_p = 1;
1833   return (*curr)->data;
1834 }
1835
1836
1837 /* Create/delete the gdbarch data vector. */
1838
1839 static void
1840 alloc_gdbarch_data (struct gdbarch *gdbarch)
1841 {
1842   gdb_assert (gdbarch->data == NULL);
1843   gdbarch->nr_data = gdbarch_data_registry.nr;
1844   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1845 }
1846
1847 /* Initialize the current value of the specified per-architecture
1848    data-pointer. */
1849
1850 void
1851 set_gdbarch_data (struct gdbarch *gdbarch,
1852                   struct gdbarch_data *data,
1853                   void *pointer)
1854 {
1855   gdb_assert (data->index < gdbarch->nr_data);
1856   gdb_assert (gdbarch->data[data->index] == NULL);
1857   gdbarch->data[data->index] = pointer;
1858 }
1859
1860 /* Return the current value of the specified per-architecture
1861    data-pointer. */
1862
1863 void *
1864 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1865 {
1866   gdb_assert (data->index < gdbarch->nr_data);
1867   /* The data-pointer isn't initialized, call init() to get a value but
1868      only if the architecture initializaiton has completed.  Otherwise
1869      punt - hope that the caller knows what they are doing.  */
1870   if (gdbarch->data[data->index] == NULL
1871       && gdbarch->initialized_p)
1872     {
1873       /* Be careful to detect an initialization cycle.  */
1874       gdb_assert (data->init_p);
1875       data->init_p = 0;
1876       gdb_assert (data->init != NULL);
1877       gdbarch->data[data->index] = data->init (gdbarch);
1878       data->init_p = 1;
1879       gdb_assert (gdbarch->data[data->index] != NULL);
1880     }
1881   return gdbarch->data[data->index];
1882 }
1883
1884
1885
1886 /* Keep a registry of swapped data required by GDB modules. */
1887
1888 struct gdbarch_swap
1889 {
1890   void *swap;
1891   struct gdbarch_swap_registration *source;
1892   struct gdbarch_swap *next;
1893 };
1894
1895 struct gdbarch_swap_registration
1896 {
1897   void *data;
1898   unsigned long sizeof_data;
1899   gdbarch_swap_ftype *init;
1900   struct gdbarch_swap_registration *next;
1901 };
1902
1903 struct gdbarch_swap_registry
1904 {
1905   int nr;
1906   struct gdbarch_swap_registration *registrations;
1907 };
1908
1909 struct gdbarch_swap_registry gdbarch_swap_registry =
1910 {
1911   0, NULL,
1912 };
1913
1914 void
1915 register_gdbarch_swap (void *data,
1916                        unsigned long sizeof_data,
1917                        gdbarch_swap_ftype *init)
1918 {
1919   struct gdbarch_swap_registration **rego;
1920   for (rego = &gdbarch_swap_registry.registrations;
1921        (*rego) != NULL;
1922        rego = &(*rego)->next);
1923   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1924   (*rego)->next = NULL;
1925   (*rego)->init = init;
1926   (*rego)->data = data;
1927   (*rego)->sizeof_data = sizeof_data;
1928 }
1929
1930 static void
1931 clear_gdbarch_swap (struct gdbarch *gdbarch)
1932 {
1933   struct gdbarch_swap *curr;
1934   for (curr = gdbarch->swap;
1935        curr != NULL;
1936        curr = curr->next)
1937     {
1938       memset (curr->source->data, 0, curr->source->sizeof_data);
1939     }
1940 }
1941
1942 static void
1943 init_gdbarch_swap (struct gdbarch *gdbarch)
1944 {
1945   struct gdbarch_swap_registration *rego;
1946   struct gdbarch_swap **curr = &gdbarch->swap;
1947   for (rego = gdbarch_swap_registry.registrations;
1948        rego != NULL;
1949        rego = rego->next)
1950     {
1951       if (rego->data != NULL)
1952         {
1953           (*curr) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct gdbarch_swap);
1954           (*curr)->source = rego;
1955           (*curr)->swap = gdbarch_obstack_zalloc (gdbarch, rego->sizeof_data);
1956           (*curr)->next = NULL;
1957           curr = &(*curr)->next;
1958         }
1959       if (rego->init != NULL)
1960         rego->init ();
1961     }
1962 }
1963
1964 static void
1965 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1966 {
1967   struct gdbarch_swap *curr;
1968   for (curr = gdbarch->swap;
1969        curr != NULL;
1970        curr = curr->next)
1971     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1972 }
1973
1974 static void
1975 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1976 {
1977   struct gdbarch_swap *curr;
1978   for (curr = gdbarch->swap;
1979        curr != NULL;
1980        curr = curr->next)
1981     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1982 }
1983
1984
1985 /* Keep a registry of the architectures known by GDB. */
1986
1987 struct gdbarch_registration
1988 {
1989   enum bfd_architecture bfd_architecture;
1990   gdbarch_init_ftype *init;
1991   gdbarch_dump_tdep_ftype *dump_tdep;
1992   struct gdbarch_list *arches;
1993   struct gdbarch_registration *next;
1994 };
1995
1996 static struct gdbarch_registration *gdbarch_registry = NULL;
1997
1998 static void
1999 append_name (const char ***buf, int *nr, const char *name)
2000 {
2001   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2002   (*buf)[*nr] = name;
2003   *nr += 1;
2004 }
2005
2006 const char **
2007 gdbarch_printable_names (void)
2008 {
2009   /* Accumulate a list of names based on the registed list of
2010      architectures. */
2011   enum bfd_architecture a;
2012   int nr_arches = 0;
2013   const char **arches = NULL;
2014   struct gdbarch_registration *rego;
2015   for (rego = gdbarch_registry;
2016        rego != NULL;
2017        rego = rego->next)
2018     {
2019       const struct bfd_arch_info *ap;
2020       ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2021       if (ap == NULL)
2022         internal_error (__FILE__, __LINE__,
2023                         "gdbarch_architecture_names: multi-arch unknown");
2024       do
2025         {
2026           append_name (&arches, &nr_arches, ap->printable_name);
2027           ap = ap->next;
2028         }
2029       while (ap != NULL);
2030     }
2031   append_name (&arches, &nr_arches, NULL);
2032   return arches;
2033 }
2034
2035
2036 void
2037 gdbarch_register (enum bfd_architecture bfd_architecture,
2038                   gdbarch_init_ftype *init,
2039                   gdbarch_dump_tdep_ftype *dump_tdep)
2040 {
2041   struct gdbarch_registration **curr;
2042   const struct bfd_arch_info *bfd_arch_info;
2043   /* Check that BFD recognizes this architecture */
2044   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2045   if (bfd_arch_info == NULL)
2046     {
2047       internal_error (__FILE__, __LINE__,
2048                       "gdbarch: Attempt to register unknown architecture (%d)",
2049                       bfd_architecture);
2050     }
2051   /* Check that we haven't seen this architecture before */
2052   for (curr = &gdbarch_registry;
2053        (*curr) != NULL;
2054        curr = &(*curr)->next)
2055     {
2056       if (bfd_architecture == (*curr)->bfd_architecture)
2057         internal_error (__FILE__, __LINE__,
2058                         "gdbarch: Duplicate registraration of architecture (%s)",
2059                         bfd_arch_info->printable_name);
2060     }
2061   /* log it */
2062   if (gdbarch_debug)
2063     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2064                         bfd_arch_info->printable_name,
2065                         (long) init);
2066   /* Append it */
2067   (*curr) = XMALLOC (struct gdbarch_registration);
2068   (*curr)->bfd_architecture = bfd_architecture;
2069   (*curr)->init = init;
2070   (*curr)->dump_tdep = dump_tdep;
2071   (*curr)->arches = NULL;
2072   (*curr)->next = NULL;
2073 }
2074
2075 void
2076 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2077                        gdbarch_init_ftype *init)
2078 {
2079   gdbarch_register (bfd_architecture, init, NULL);
2080 }
2081
2082
2083 /* Look for an architecture using gdbarch_info.  Base search on only
2084    BFD_ARCH_INFO and BYTE_ORDER. */
2085
2086 struct gdbarch_list *
2087 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2088                              const struct gdbarch_info *info)
2089 {
2090   for (; arches != NULL; arches = arches->next)
2091     {
2092       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2093         continue;
2094       if (info->byte_order != arches->gdbarch->byte_order)
2095         continue;
2096       if (info->osabi != arches->gdbarch->osabi)
2097         continue;
2098       return arches;
2099     }
2100   return NULL;
2101 }
2102
2103
2104 /* Update the current architecture. Return ZERO if the update request
2105    failed. */
2106
2107 int
2108 gdbarch_update_p (struct gdbarch_info info)
2109 {
2110   struct gdbarch *new_gdbarch;
2111   struct gdbarch *old_gdbarch;
2112   struct gdbarch_registration *rego;
2113
2114   /* Fill in missing parts of the INFO struct using a number of
2115      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
2116
2117   /* \`\`(gdb) set architecture ...'' */
2118   if (info.bfd_arch_info == NULL
2119       && !TARGET_ARCHITECTURE_AUTO)
2120     info.bfd_arch_info = TARGET_ARCHITECTURE;
2121   if (info.bfd_arch_info == NULL
2122       && info.abfd != NULL
2123       && bfd_get_arch (info.abfd) != bfd_arch_unknown
2124       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2125     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2126   if (info.bfd_arch_info == NULL)
2127     info.bfd_arch_info = TARGET_ARCHITECTURE;
2128
2129   /* \`\`(gdb) set byte-order ...'' */
2130   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2131       && !TARGET_BYTE_ORDER_AUTO)
2132     info.byte_order = TARGET_BYTE_ORDER;
2133   /* From the INFO struct. */
2134   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2135       && info.abfd != NULL)
2136     info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2137                        : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2138                        : BFD_ENDIAN_UNKNOWN);
2139   /* From the current target. */
2140   if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2141     info.byte_order = TARGET_BYTE_ORDER;
2142
2143   /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi.  */
2144   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2145     info.osabi = gdbarch_lookup_osabi (info.abfd);
2146   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2147     info.osabi = current_gdbarch->osabi;
2148
2149   /* Must have found some sort of architecture. */
2150   gdb_assert (info.bfd_arch_info != NULL);
2151
2152   if (gdbarch_debug)
2153     {
2154       fprintf_unfiltered (gdb_stdlog,
2155                           "gdbarch_update: info.bfd_arch_info %s\n",
2156                           (info.bfd_arch_info != NULL
2157                            ? info.bfd_arch_info->printable_name
2158                            : "(null)"));
2159       fprintf_unfiltered (gdb_stdlog,
2160                           "gdbarch_update: info.byte_order %d (%s)\n",
2161                           info.byte_order,
2162                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2163                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2164                            : "default"));
2165       fprintf_unfiltered (gdb_stdlog,
2166                           "gdbarch_update: info.osabi %d (%s)\n",
2167                           info.osabi, gdbarch_osabi_name (info.osabi));
2168       fprintf_unfiltered (gdb_stdlog,
2169                           "gdbarch_update: info.abfd 0x%lx\n",
2170                           (long) info.abfd);
2171       fprintf_unfiltered (gdb_stdlog,
2172                           "gdbarch_update: info.tdep_info 0x%lx\n",
2173                           (long) info.tdep_info);
2174     }
2175
2176   /* Find the target that knows about this architecture. */
2177   for (rego = gdbarch_registry;
2178        rego != NULL;
2179        rego = rego->next)
2180     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2181       break;
2182   if (rego == NULL)
2183     {
2184       if (gdbarch_debug)
2185         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2186       return 0;
2187     }
2188
2189   /* Swap the data belonging to the old target out setting the
2190      installed data to zero.  This stops the ->init() function trying
2191      to refer to the previous architecture's global data structures.  */
2192   swapout_gdbarch_swap (current_gdbarch);
2193   clear_gdbarch_swap (current_gdbarch);
2194
2195   /* Save the previously selected architecture, setting the global to
2196      NULL.  This stops ->init() trying to use the previous
2197      architecture's configuration.  The previous architecture may not
2198      even be of the same architecture family.  The most recent
2199      architecture of the same family is found at the head of the
2200      rego->arches list.  */
2201   old_gdbarch = current_gdbarch;
2202   current_gdbarch = NULL;
2203
2204   /* Ask the target for a replacement architecture. */
2205   new_gdbarch = rego->init (info, rego->arches);
2206
2207   /* Did the target like it?  No. Reject the change and revert to the
2208      old architecture.  */
2209   if (new_gdbarch == NULL)
2210     {
2211       if (gdbarch_debug)
2212         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2213       swapin_gdbarch_swap (old_gdbarch);
2214       current_gdbarch = old_gdbarch;
2215       return 0;
2216     }
2217
2218   /* Did the architecture change?  No.  Oops, put the old architecture
2219      back.  */
2220   if (old_gdbarch == new_gdbarch)
2221     {
2222       if (gdbarch_debug)
2223         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2224                             (long) new_gdbarch,
2225                             new_gdbarch->bfd_arch_info->printable_name);
2226       swapin_gdbarch_swap (old_gdbarch);
2227       current_gdbarch = old_gdbarch;
2228       return 1;
2229     }
2230
2231   /* Is this a pre-existing architecture?  Yes. Move it to the front
2232      of the list of architectures (keeping the list sorted Most
2233      Recently Used) and then copy it in.  */
2234   {
2235     struct gdbarch_list **list;
2236     for (list = &rego->arches;
2237          (*list) != NULL;
2238          list = &(*list)->next)
2239       {
2240         if ((*list)->gdbarch == new_gdbarch)
2241           {
2242             struct gdbarch_list *this;
2243             if (gdbarch_debug)
2244               fprintf_unfiltered (gdb_stdlog,
2245                                   "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2246                                   (long) new_gdbarch,
2247                                   new_gdbarch->bfd_arch_info->printable_name);
2248             /* Unlink this.  */
2249             this = (*list);
2250             (*list) = this->next;
2251             /* Insert in the front.  */
2252             this->next = rego->arches;
2253             rego->arches = this;
2254             /* Copy the new architecture in.  */
2255             current_gdbarch = new_gdbarch;
2256             swapin_gdbarch_swap (new_gdbarch);
2257             architecture_changed_event ();
2258             return 1;
2259           }
2260       }
2261   }
2262
2263   /* Prepend this new architecture to the architecture list (keep the
2264      list sorted Most Recently Used).  */
2265   {
2266     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2267     this->next = rego->arches;
2268     this->gdbarch = new_gdbarch;
2269     rego->arches = this;
2270   }
2271
2272   /* Switch to this new architecture marking it initialized.  */
2273   current_gdbarch = new_gdbarch;
2274   current_gdbarch->initialized_p = 1;
2275   if (gdbarch_debug)
2276     {
2277       fprintf_unfiltered (gdb_stdlog,
2278                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2279                           (long) new_gdbarch,
2280                           new_gdbarch->bfd_arch_info->printable_name);
2281     }
2282
2283   /* Check that the newly installed architecture is valid.  Plug in
2284      any post init values.  */
2285   new_gdbarch->dump_tdep = rego->dump_tdep;
2286   verify_gdbarch (new_gdbarch);
2287
2288   /* Initialize the per-architecture memory (swap) areas.
2289      CURRENT_GDBARCH must be update before these modules are
2290      called. */
2291   init_gdbarch_swap (new_gdbarch);
2292
2293   /* Initialize the per-architecture data.  CURRENT_GDBARCH
2294      must be updated before these modules are called. */
2295   architecture_changed_event ();
2296
2297   if (gdbarch_debug)
2298     gdbarch_dump (current_gdbarch, gdb_stdlog);
2299
2300   return 1;
2301 }
2302
2303
2304 /* Disassembler */
2305
2306 /* Pointer to the target-dependent disassembly function.  */
2307 int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info *);
2308
2309 extern void _initialize_gdbarch (void);
2310
2311 void
2312 _initialize_gdbarch (void)
2313 {
2314   struct cmd_list_element *c;
2315
2316   add_show_from_set (add_set_cmd ("arch",
2317                                   class_maintenance,
2318                                   var_zinteger,
2319                                   (char *)&gdbarch_debug,
2320                                   "Set architecture debugging.\\n\\
2321 When non-zero, architecture debugging is enabled.", &setdebuglist),
2322                      &showdebuglist);
2323   c = add_set_cmd ("archdebug",
2324                    class_maintenance,
2325                    var_zinteger,
2326                    (char *)&gdbarch_debug,
2327                    "Set architecture debugging.\\n\\
2328 When non-zero, architecture debugging is enabled.", &setlist);
2329
2330   deprecate_cmd (c, "set debug arch");
2331   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2332 }
2333 EOF
2334
2335 # close things off
2336 exec 1>&2
2337 #../move-if-change new-gdbarch.c gdbarch.c
2338 compare_new gdbarch.c