gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   5 #
   6 # This file is part of GDB.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21
  22 # Make certain that the script is running in an internationalized
  23 # environment.
  24 LANG=c ; export LANG
  25 LC_ALL=c ; export LC_ALL
  26
  27
  28 compare_new ()
  29 {
  30     file=$1
  31     if test ! -r ${file}
  32     then
  33         echo "${file} missing? cp new-${file} ${file}" 1>&2
  34     elif diff -u ${file} new-${file}
  35     then
  36         echo "${file} unchanged" 1>&2
  37     else
  38         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  39     fi
  40 }
  41
  42
  43 # Format of the input table
  44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  45
  46 do_read ()
  47 {
  48     comment=""
  49     class=""
  50     while read line
  51     do
  52         if test "${line}" = ""
  53         then
  54             continue
  55         elif test "${line}" = "#" -a "${comment}" = ""
  56         then
  57             continue
  58         elif expr "${line}" : "#" > /dev/null
  59         then
  60             comment="${comment}
  61 ${line}"
  62         else
  63
  64             # The semantics of IFS varies between different SH's.  Some
  65             # treat ``::' as three fields while some treat it as just too.
  66             # Work around this by eliminating ``::'' ....
  67             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  68
  69             OFS="${IFS}" ; IFS="[:]"
  70             eval read ${read} <<EOF
  71 ${line}
  72 EOF
  73             IFS="${OFS}"
  74
  75             # .... and then going back through each field and strip out those
  76             # that ended up with just that space character.
  77             for r in ${read}
  78             do
  79                 if eval test \"\${${r}}\" = \"\ \"
  80                 then
  81                     eval ${r}=""
  82                 fi
  83             done
  84
  85             case "${level}" in
  86                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  87                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  88                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  89                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  90             esac
  91
  92             case "${class}" in
  93                 m ) staticdefault="${predefault}" ;;
  94                 M ) staticdefault="0" ;;
  95                 * ) test "${staticdefault}" || staticdefault=0 ;;
  96             esac
  97             # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
  98             # multi-arch defaults.
  99             # test "${predefault}" || predefault=0
 100
 101             # come up with a format, use a few guesses for variables
 102             case ":${class}:${fmt}:${print}:" in
 103                 :[vV]::: )
 104                     if [ "${returntype}" = int ]
 105                     then
 106                         fmt="%d"
 107                         print="${macro}"
 108                     elif [ "${returntype}" = long ]
 109                     then
 110                         fmt="%ld"
 111                         print="${macro}"
 112                     fi
 113                     ;;
 114             esac
 115             test "${fmt}" || fmt="%ld"
 116             test "${print}" || print="(long) ${macro}"
 117
 118             case "${class}" in
 119             F | V | M )
 120                 case "${invalid_p}" in
 121                 "" )
 122                     if test -n "${predefault}" -a "${predefault}" != "0"
 123                     then
 124                         #invalid_p="gdbarch->${function} == ${predefault}"
 125                         predicate="gdbarch->${function} != ${predefault}"
 126                     else
 127                         # filled in later
 128                         predicate=""
 129                     fi
 130                     ;;
 131                 * )
 132                     echo "Predicate function ${function} with invalid_p." 1>&2
 133                     kill $$
 134                     exit 1
 135                     ;;
 136                 esac
 137             esac
 138
 139             # PREDEFAULT is a valid fallback definition of MEMBER when
 140             # multi-arch is not enabled.  This ensures that the
 141             # default value, when multi-arch is the same as the
 142             # default value when not multi-arch.  POSTDEFAULT is
 143             # always a valid definition of MEMBER as this again
 144             # ensures consistency.
 145
 146             if [ -n "${postdefault}" ]
 147             then
 148                 fallbackdefault="${postdefault}"
 149             elif [ -n "${predefault}" ]
 150             then
 151                 fallbackdefault="${predefault}"
 152             else
 153                 fallbackdefault="0"
 154             fi
 155
 156             #NOT YET: See gdbarch.log for basic verification of
 157             # database
 158
 159             break
 160         fi
 161     done
 162     if [ -n "${class}" ]
 163     then
 164         true
 165     else
 166         false
 167     fi
 168 }
 169
 170
 171 fallback_default_p ()
 172 {
 173     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 174         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 175 }
 176
 177 class_is_variable_p ()
 178 {
 179     case "${class}" in
 180         *v* | *V* ) true ;;
 181         * ) false ;;
 182     esac
 183 }
 184
 185 class_is_function_p ()
 186 {
 187     case "${class}" in
 188         *f* | *F* | *m* | *M* ) true ;;
 189         * ) false ;;
 190     esac
 191 }
 192
 193 class_is_multiarch_p ()
 194 {
 195     case "${class}" in
 196         *m* | *M* ) true ;;
 197         * ) false ;;
 198     esac
 199 }
 200
 201 class_is_predicate_p ()
 202 {
 203     case "${class}" in
 204         *F* | *V* | *M* ) true ;;
 205         * ) false ;;
 206     esac
 207 }
 208
 209 class_is_info_p ()
 210 {
 211     case "${class}" in
 212         *i* ) true ;;
 213         * ) false ;;
 214     esac
 215 }
 216
 217
 218 # dump out/verify the doco
 219 for field in ${read}
 220 do
 221   case ${field} in
 222
 223     class ) : ;;
 224
 225         # # -> line disable
 226         # f -> function
 227         #   hiding a function
 228         # F -> function + predicate
 229         #   hiding a function + predicate to test function validity
 230         # v -> variable
 231         #   hiding a variable
 232         # V -> variable + predicate
 233         #   hiding a variable + predicate to test variables validity
 234         # i -> set from info
 235         #   hiding something from the ``struct info'' object
 236         # m -> multi-arch function
 237         #   hiding a multi-arch function (parameterised with the architecture)
 238         # M -> multi-arch function + predicate
 239         #   hiding a multi-arch function + predicate to test function validity
 240
 241     level ) : ;;
 242
 243         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 244         # LEVEL is a predicate on checking that a given method is
 245         # initialized (using INVALID_P).
 246
 247     macro ) : ;;
 248
 249         # The name of the MACRO that this method is to be accessed by.
 250
 251     returntype ) : ;;
 252
 253         # For functions, the return type; for variables, the data type
 254
 255     function ) : ;;
 256
 257         # For functions, the member function name; for variables, the
 258         # variable name.  Member function names are always prefixed with
 259         # ``gdbarch_'' for name-space purity.
 260
 261     formal ) : ;;
 262
 263         # The formal argument list.  It is assumed that the formal
 264         # argument list includes the actual name of each list element.
 265         # A function with no arguments shall have ``void'' as the
 266         # formal argument list.
 267
 268     actual ) : ;;
 269
 270         # The list of actual arguments.  The arguments specified shall
 271         # match the FORMAL list given above.  Functions with out
 272         # arguments leave this blank.
 273
 274     attrib ) : ;;
 275
 276         # Any GCC attributes that should be attached to the function
 277         # declaration.  At present this field is unused.
 278
 279     staticdefault ) : ;;
 280
 281         # To help with the GDB startup a static gdbarch object is
 282         # created.  STATICDEFAULT is the value to insert into that
 283         # static gdbarch object.  Since this a static object only
 284         # simple expressions can be used.
 285
 286         # If STATICDEFAULT is empty, zero is used.
 287
 288     predefault ) : ;;
 289
 290         # An initial value to assign to MEMBER of the freshly
 291         # malloc()ed gdbarch object.  After initialization, the
 292         # freshly malloc()ed object is passed to the target
 293         # architecture code for further updates.
 294
 295         # If PREDEFAULT is empty, zero is used.
 296
 297         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 298         # INVALID_P are specified, PREDEFAULT will be used as the
 299         # default for the non- multi-arch target.
 300
 301         # A zero PREDEFAULT function will force the fallback to call
 302         # internal_error().
 303
 304         # Variable declarations can refer to ``gdbarch'' which will
 305         # contain the current architecture.  Care should be taken.
 306
 307     postdefault ) : ;;
 308
 309         # A value to assign to MEMBER of the new gdbarch object should
 310         # the target architecture code fail to change the PREDEFAULT
 311         # value.
 312
 313         # If POSTDEFAULT is empty, no post update is performed.
 314
 315         # If both INVALID_P and POSTDEFAULT are non-empty then
 316         # INVALID_P will be used to determine if MEMBER should be
 317         # changed to POSTDEFAULT.
 318
 319         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 320         # specified, POSTDEFAULT will be used as the default for the
 321         # non- multi-arch target (regardless of the value of
 322         # PREDEFAULT).
 323
 324         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 325
 326         # Variable declarations can refer to ``gdbarch'' which will
 327         # contain the current architecture.  Care should be taken.
 328
 329     invalid_p ) : ;;
 330
 331         # A predicate equation that validates MEMBER.  Non-zero is
 332         # returned if the code creating the new architecture failed to
 333         # initialize MEMBER or the initialized the member is invalid.
 334         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 335         # that value.  If POSTDEFAULT is empty then internal_error()
 336         # is called.
 337
 338         # If INVALID_P is empty, a check that MEMBER is no longer
 339         # equal to PREDEFAULT is used.
 340
 341         # The expression ``0'' disables the INVALID_P check making
 342         # PREDEFAULT a legitimate value.
 343
 344         # See also PREDEFAULT and POSTDEFAULT.
 345
 346     fmt ) : ;;
 347
 348         # printf style format string that can be used to print out the
 349         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 350         # ignored and the function address is printed.
 351
 352         # If FMT is empty, ``%ld'' is used.
 353
 354     print ) : ;;
 355
 356         # An optional equation that casts MEMBER to a value suitable
 357         # for formatting by FMT.
 358
 359         # If PRINT is empty, ``(long)'' is used.
 360
 361     print_p ) : ;;
 362
 363         # An optional indicator for any predicte to wrap around the
 364         # print member code.
 365
 366         #   () -> Call a custom function to do the dump.
 367         #   exp -> Wrap print up in ``if (${print_p}) ...
 368         #   ``'' -> No predicate
 369
 370         # If PRINT_P is empty, ``1'' is always used.
 371
 372     description ) : ;;
 373
 374         # Currently unused.
 375
 376     *)
 377         echo "Bad field ${field}"
 378         exit 1;;
 379   esac
 380 done
 381
 382
 383 function_list ()
 384 {
 385   # See below (DOCO) for description of each field
 386   cat <<EOF
 387 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 388 #
 389 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
 390 #
 391 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
 392 # Number of bits in a char or unsigned char for the target machine.
 393 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 394 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 395 #
 396 # Number of bits in a short or unsigned short for the target machine.
 397 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 398 # Number of bits in an int or unsigned int for the target machine.
 399 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 400 # Number of bits in a long or unsigned long for the target machine.
 401 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 402 # Number of bits in a long long or unsigned long long for the target
 403 # machine.
 404 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 405 # Number of bits in a float for the target machine.
 406 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 407 # Number of bits in a double for the target machine.
 408 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 409 # Number of bits in a long double for the target machine.
 410 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
 411 # For most targets, a pointer on the target and its representation as an
 412 # address in GDB have the same size and "look the same".  For such a
 413 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 414 # / addr_bit will be set from it.
 415 #
 416 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 417 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 418 #
 419 # ptr_bit is the size of a pointer on the target
 420 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 421 # addr_bit is the size of a target address as represented in gdb
 422 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 423 # Number of bits in a BFD_VMA for the target object file format.
 424 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 425 #
 426 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
 427 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
 428 #
 429 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
 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:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
 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::0:
 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::0:0
 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::0
 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::0
 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::0:0
 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:::0
 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::::0
 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:-:::0
 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::0:0
 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::0:0
 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:-:::0
 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:::0
 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:::0
 607 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
 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:::0
 611 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
 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::0:0
 627 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
 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::0:0
 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::0:0
 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::0:0
 646 v:2:PARM_BOUNDARY:int:parm_boundary
 647 #
 648 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 649 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 650 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 651 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
 652 # On some machines there are bits in addresses which are not really
 653 # part of the address, but are used by the kernel, the hardware, etc.
 654 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 655 # we get a "real" address such as one would find in a symbol table.
 656 # This is used only for addresses of instructions, and even then I'm
 657 # not sure it's used in all contexts.  It exists to deal with there
 658 # being a few stray bits in the PC which would mislead us, not as some
 659 # sort of generic thing to handle alignment or segmentation (it's
 660 # possible it should be in TARGET_READ_PC instead).
 661 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 662 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 663 # ADDR_BITS_REMOVE.
 664 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 665 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 666 # the target needs software single step.  An ISA method to implement it.
 667 #
 668 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 669 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 670 #
 671 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 672 # single step.  If not, then implement single step using breakpoints.
 673 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
 674 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
 675 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 676
 677
 678 # For SVR4 shared libraries, each call goes through a small piece of
 679 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 680 # to nonzero if we are currently stopped in one of these.
 681 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 682
 683 # Some systems also have trampoline code for returning from shared libs.
 684 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 685
 686 # Sigtramp is a routine that the kernel calls (which then calls the
 687 # signal handler).  On most machines it is a library routine that is
 688 # linked into the executable.
 689 #
 690 # This macro, given a program counter value and the name of the
 691 # function in which that PC resides (which can be null if the name is
 692 # not known), returns nonzero if the PC and name show that we are in
 693 # sigtramp.
 694 #
 695 # On most machines just see if the name is sigtramp (and if we have
 696 # no name, assume we are not in sigtramp).
 697 #
 698 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 699 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 700 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 701 # own local NAME lookup.
 702 #
 703 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 704 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 705 # does not.
 706 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 707 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 708 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 709 # A target might have problems with watchpoints as soon as the stack
 710 # frame of the current function has been destroyed.  This mostly happens
 711 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 712 # is defined to return a non-zero value if either the given addr is one
 713 # instruction after the stack destroying instruction up to the trailing
 714 # return instruction or if we can figure out that the stack frame has
 715 # already been invalidated regardless of the value of addr.  Targets
 716 # which don't suffer from that problem could just let this functionality
 717 # untouched.
 718 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 719 # Given a vector of command-line arguments, return a newly allocated
 720 # string which, when passed to the create_inferior function, will be
 721 # parsed (on Unix systems, by the shell) to yield the same vector.
 722 # This function should call error() if the argument vector is not
 723 # representable for this target or if this target does not support
 724 # command-line arguments.
 725 # ARGC is the number of elements in the vector.
 726 # ARGV is an array of strings, one per argument.
 727 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 728 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::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 #if !GDB_MULTI_ARCH
 839 /* Pull in function declarations refered to, indirectly, via macros.  */
 840 #include "inferior.h"           /* For unsigned_address_to_pointer().  */
 841 #include "symfile.h"            /* For entry_point_address().  */
 842 #endif
 843
 844 struct floatformat;
 845 struct ui_file;
 846 struct frame_info;
 847 struct value;
 848 struct objfile;
 849 struct minimal_symbol;
 850 struct regcache;
 851 struct reggroup;
 852
 853 extern struct gdbarch *current_gdbarch;
 854
 855
 856 /* If any of the following are defined, the target wasn't correctly
 857    converted. */
 858
 859 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 860 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 861 #endif
 862 EOF
 863
 864 # function typedef's
 865 printf "\n"
 866 printf "\n"
 867 printf "/* The following are pre-initialized by GDBARCH. */\n"
 868 function_list | while do_read
 869 do
 870     if class_is_info_p
 871     then
 872         printf "\n"
 873         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 874         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 875         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 876         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 877         printf "#endif\n"
 878         printf "#if !defined (${macro})\n"
 879         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 880         printf "#endif\n"
 881     fi
 882 done
 883
 884 # function typedef's
 885 printf "\n"
 886 printf "\n"
 887 printf "/* The following are initialized by the target dependent code. */\n"
 888 function_list | while do_read
 889 do
 890     if [ -n "${comment}" ]
 891     then
 892         echo "${comment}" | sed \
 893             -e '2 s,#,/*,' \
 894             -e '3,$ s,#,  ,' \
 895             -e '$ s,$, */,'
 896     fi
 897     if class_is_multiarch_p
 898     then
 899         if class_is_predicate_p
 900         then
 901             printf "\n"
 902             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 903         fi
 904     else
 905         if class_is_predicate_p
 906         then
 907             printf "\n"
 908             printf "#if defined (${macro})\n"
 909             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 910             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 911             printf "#if !defined (${macro}_P)\n"
 912             printf "#define ${macro}_P() (1)\n"
 913             printf "#endif\n"
 914             printf "#endif\n"
 915             printf "\n"
 916             printf "/* Default predicate for non- multi-arch targets. */\n"
 917             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
 918             printf "#define ${macro}_P() (0)\n"
 919             printf "#endif\n"
 920             printf "\n"
 921             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 922             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 923             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 924             printf "#endif\n"
 925             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 926             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 927             printf "#endif\n"
 928         fi
 929     fi
 930     if class_is_variable_p
 931     then
 932         if fallback_default_p || class_is_predicate_p
 933         then
 934             printf "\n"
 935             printf "/* Default (value) for non- multi-arch platforms. */\n"
 936             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 937             echo "#define ${macro} (${fallbackdefault})" \
 938                 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 939             printf "#endif\n"
 940         fi
 941         printf "\n"
 942         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 943         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 944         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 945         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 946         printf "#endif\n"
 947         printf "#if !defined (${macro})\n"
 948         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 949         printf "#endif\n"
 950     fi
 951     if class_is_function_p
 952     then
 953         if class_is_multiarch_p ; then :
 954         elif fallback_default_p || class_is_predicate_p
 955         then
 956             printf "\n"
 957             printf "/* Default (function) for non- multi-arch platforms. */\n"
 958             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 959             if [ "x${fallbackdefault}" = "x0" ]
 960             then
 961                 if [ "x${actual}" = "x-" ]
 962                 then
 963                     printf "#define ${macro} (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
 964                 else
 965                     printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
 966                 fi
 967             else
 968                 # FIXME: Should be passing current_gdbarch through!
 969                 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
 970                     | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 971             fi
 972             printf "#endif\n"
 973         fi
 974         printf "\n"
 975         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 976         then
 977             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 978         elif class_is_multiarch_p
 979         then
 980             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 981         else
 982             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 983         fi
 984         if [ "x${formal}" = "xvoid" ]
 985         then
 986           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 987         else
 988           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 989         fi
 990         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 991         if class_is_multiarch_p ; then :
 992         else
 993             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 994             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 995             printf "#endif\n"
 996             if [ "x${actual}" = "x" ]
 997             then
 998                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
 999             elif [ "x${actual}" = "x-" ]
1000             then
1001                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
1002             else
1003                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
1004             fi
1005             printf "#if !defined (${macro})\n"
1006             if [ "x${actual}" = "x" ]
1007             then
1008                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
1009             elif [ "x${actual}" = "x-" ]
1010             then
1011                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
1012             else
1013                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
1014             fi
1015             printf "#endif\n"
1016         fi
1017     fi
1018 done
1019
1020 # close it off
1021 cat <<EOF
1022
1023 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1024
1025
1026 /* Mechanism for co-ordinating the selection of a specific
1027    architecture.
1028
1029    GDB targets (*-tdep.c) can register an interest in a specific
1030    architecture.  Other GDB components can register a need to maintain
1031    per-architecture data.
1032
1033    The mechanisms below ensures that there is only a loose connection
1034    between the set-architecture command and the various GDB
1035    components.  Each component can independently register their need
1036    to maintain architecture specific data with gdbarch.
1037
1038    Pragmatics:
1039
1040    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1041    didn't scale.
1042
1043    The more traditional mega-struct containing architecture specific
1044    data for all the various GDB components was also considered.  Since
1045    GDB is built from a variable number of (fairly independent)
1046    components it was determined that the global aproach was not
1047    applicable. */
1048
1049
1050 /* Register a new architectural family with GDB.
1051
1052    Register support for the specified ARCHITECTURE with GDB.  When
1053    gdbarch determines that the specified architecture has been
1054    selected, the corresponding INIT function is called.
1055
1056    --
1057
1058    The INIT function takes two parameters: INFO which contains the
1059    information available to gdbarch about the (possibly new)
1060    architecture; ARCHES which is a list of the previously created
1061    \`\`struct gdbarch'' for this architecture.
1062
1063    The INFO parameter is, as far as possible, be pre-initialized with
1064    information obtained from INFO.ABFD or the previously selected
1065    architecture.
1066
1067    The ARCHES parameter is a linked list (sorted most recently used)
1068    of all the previously created architures for this architecture
1069    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1070    values from the previously selected architecture for this
1071    architecture family.  The global \`\`current_gdbarch'' shall not be
1072    used.
1073
1074    The INIT function shall return any of: NULL - indicating that it
1075    doesn't recognize the selected architecture; an existing \`\`struct
1076    gdbarch'' from the ARCHES list - indicating that the new
1077    architecture is just a synonym for an earlier architecture (see
1078    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1079    - that describes the selected architecture (see gdbarch_alloc()).
1080
1081    The DUMP_TDEP function shall print out all target specific values.
1082    Care should be taken to ensure that the function works in both the
1083    multi-arch and non- multi-arch cases. */
1084
1085 struct gdbarch_list
1086 {
1087   struct gdbarch *gdbarch;
1088   struct gdbarch_list *next;
1089 };
1090
1091 struct gdbarch_info
1092 {
1093   /* Use default: NULL (ZERO). */
1094   const struct bfd_arch_info *bfd_arch_info;
1095
1096   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1097   int byte_order;
1098
1099   /* Use default: NULL (ZERO). */
1100   bfd *abfd;
1101
1102   /* Use default: NULL (ZERO). */
1103   struct gdbarch_tdep_info *tdep_info;
1104
1105   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1106   enum gdb_osabi osabi;
1107 };
1108
1109 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1110 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1111
1112 /* DEPRECATED - use gdbarch_register() */
1113 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1114
1115 extern void gdbarch_register (enum bfd_architecture architecture,
1116                               gdbarch_init_ftype *,
1117                               gdbarch_dump_tdep_ftype *);
1118
1119
1120 /* Return a freshly allocated, NULL terminated, array of the valid
1121    architecture names.  Since architectures are registered during the
1122    _initialize phase this function only returns useful information
1123    once initialization has been completed. */
1124
1125 extern const char **gdbarch_printable_names (void);
1126
1127
1128 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1129    matches the information provided by INFO. */
1130
1131 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1132
1133
1134 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1135    basic initialization using values obtained from the INFO andTDEP
1136    parameters.  set_gdbarch_*() functions are called to complete the
1137    initialization of the object. */
1138
1139 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1140
1141
1142 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1143    It is assumed that the caller freeds the \`\`struct
1144    gdbarch_tdep''. */
1145
1146 extern void gdbarch_free (struct gdbarch *);
1147
1148
1149 /* Helper function. Force an update of the current architecture.
1150
1151    The actual architecture selected is determined by INFO, \`\`(gdb) set
1152    architecture'' et.al., the existing architecture and BFD's default
1153    architecture.  INFO should be initialized to zero and then selected
1154    fields should be updated.
1155
1156    Returns non-zero if the update succeeds */
1157
1158 extern int gdbarch_update_p (struct gdbarch_info info);
1159
1160
1161
1162 /* Register per-architecture data-pointer.
1163
1164    Reserve space for a per-architecture data-pointer.  An identifier
1165    for the reserved data-pointer is returned.  That identifer should
1166    be saved in a local static variable.
1167
1168    The per-architecture data-pointer is either initialized explicitly
1169    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1170    gdbarch_data()).  FREE() is called to delete either an existing
1171    data-pointer overridden by set_gdbarch_data() or when the
1172    architecture object is being deleted.
1173
1174    When a previously created architecture is re-selected, the
1175    per-architecture data-pointer for that previous architecture is
1176    restored.  INIT() is not re-called.
1177
1178    Multiple registrarants for any architecture are allowed (and
1179    strongly encouraged).  */
1180
1181 struct gdbarch_data;
1182
1183 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1184 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1185                                         void *pointer);
1186 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1187                                                    gdbarch_data_free_ftype *free);
1188 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1189                               struct gdbarch_data *data,
1190                               void *pointer);
1191
1192 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1193
1194
1195 /* Register per-architecture memory region.
1196
1197    Provide a memory-region swap mechanism.  Per-architecture memory
1198    region are created.  These memory regions are swapped whenever the
1199    architecture is changed.  For a new architecture, the memory region
1200    is initialized with zero (0) and the INIT function is called.
1201
1202    Memory regions are swapped / initialized in the order that they are
1203    registered.  NULL DATA and/or INIT values can be specified.
1204
1205    New code should use register_gdbarch_data(). */
1206
1207 typedef void (gdbarch_swap_ftype) (void);
1208 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1209 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1210
1211
1212
1213 /* The target-system-dependent byte order is dynamic */
1214
1215 extern int target_byte_order;
1216 #ifndef TARGET_BYTE_ORDER
1217 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1218 #endif
1219
1220 extern int target_byte_order_auto;
1221 #ifndef TARGET_BYTE_ORDER_AUTO
1222 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1223 #endif
1224
1225
1226
1227 /* The target-system-dependent BFD architecture is dynamic */
1228
1229 extern int target_architecture_auto;
1230 #ifndef TARGET_ARCHITECTURE_AUTO
1231 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1232 #endif
1233
1234 extern const struct bfd_arch_info *target_architecture;
1235 #ifndef TARGET_ARCHITECTURE
1236 #define TARGET_ARCHITECTURE (target_architecture + 0)
1237 #endif
1238
1239
1240 /* The target-system-dependent disassembler is semi-dynamic */
1241
1242 /* Use gdb_disassemble, and gdbarch_print_insn instead.  */
1243 extern int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info*);
1244
1245 /* Use set_gdbarch_print_insn instead.  */
1246 extern disassemble_info deprecated_tm_print_insn_info;
1247
1248 /* Set the dynamic target-system-dependent parameters (architecture,
1249    byte-order, ...) using information found in the BFD */
1250
1251 extern void set_gdbarch_from_file (bfd *);
1252
1253
1254 /* Initialize the current architecture to the "first" one we find on
1255    our list.  */
1256
1257 extern void initialize_current_architecture (void);
1258
1259 /* For non-multiarched targets, do any initialization of the default
1260    gdbarch object necessary after the _initialize_MODULE functions
1261    have run.  */
1262 extern void initialize_non_multiarch (void);
1263
1264 /* gdbarch trace variable */
1265 extern int gdbarch_debug;
1266
1267 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1268
1269 #endif
1270 EOF
1271 exec 1>&2
1272 #../move-if-change new-gdbarch.h gdbarch.h
1273 compare_new gdbarch.h
1274
1275
1276 #
1277 # C file
1278 #
1279
1280 exec > new-gdbarch.c
1281 copyright
1282 cat <<EOF
1283
1284 #include "defs.h"
1285 #include "arch-utils.h"
1286
1287 #if GDB_MULTI_ARCH
1288 #include "gdbcmd.h"
1289 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1290 #else
1291 /* Just include everything in sight so that the every old definition
1292    of macro is visible. */
1293 #include "gdb_string.h"
1294 #include <ctype.h>
1295 #include "symtab.h"
1296 #include "frame.h"
1297 #include "inferior.h"
1298 #include "breakpoint.h"
1299 #include "gdb_wait.h"
1300 #include "gdbcore.h"
1301 #include "gdbcmd.h"
1302 #include "target.h"
1303 #include "gdbthread.h"
1304 #include "annotate.h"
1305 #include "symfile.h"            /* for overlay functions */
1306 #include "value.h"              /* For old tm.h/nm.h macros.  */
1307 #endif
1308 #include "symcat.h"
1309
1310 #include "floatformat.h"
1311
1312 #include "gdb_assert.h"
1313 #include "gdb_string.h"
1314 #include "gdb-events.h"
1315 #include "reggroups.h"
1316 #include "osabi.h"
1317 #include "symfile.h"            /* For entry_point_address.  */
1318
1319 /* Static function declarations */
1320
1321 static void verify_gdbarch (struct gdbarch *gdbarch);
1322 static void alloc_gdbarch_data (struct gdbarch *);
1323 static void free_gdbarch_data (struct gdbarch *);
1324 static void init_gdbarch_swap (struct gdbarch *);
1325 static void clear_gdbarch_swap (struct gdbarch *);
1326 static void swapout_gdbarch_swap (struct gdbarch *);
1327 static void swapin_gdbarch_swap (struct gdbarch *);
1328
1329 /* Non-zero if we want to trace architecture code.  */
1330
1331 #ifndef GDBARCH_DEBUG
1332 #define GDBARCH_DEBUG 0
1333 #endif
1334 int gdbarch_debug = GDBARCH_DEBUG;
1335
1336 EOF
1337
1338 # gdbarch open the gdbarch object
1339 printf "\n"
1340 printf "/* Maintain the struct gdbarch object */\n"
1341 printf "\n"
1342 printf "struct gdbarch\n"
1343 printf "{\n"
1344 printf "  /* Has this architecture been fully initialized?  */\n"
1345 printf "  int initialized_p;\n"
1346 printf "  /* basic architectural information */\n"
1347 function_list | while do_read
1348 do
1349     if class_is_info_p
1350     then
1351         printf "  ${returntype} ${function};\n"
1352     fi
1353 done
1354 printf "\n"
1355 printf "  /* target specific vector. */\n"
1356 printf "  struct gdbarch_tdep *tdep;\n"
1357 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1358 printf "\n"
1359 printf "  /* per-architecture data-pointers */\n"
1360 printf "  unsigned nr_data;\n"
1361 printf "  void **data;\n"
1362 printf "\n"
1363 printf "  /* per-architecture swap-regions */\n"
1364 printf "  struct gdbarch_swap *swap;\n"
1365 printf "\n"
1366 cat <<EOF
1367   /* Multi-arch values.
1368
1369      When extending this structure you must:
1370
1371      Add the field below.
1372
1373      Declare set/get functions and define the corresponding
1374      macro in gdbarch.h.
1375
1376      gdbarch_alloc(): If zero/NULL is not a suitable default,
1377      initialize the new field.
1378
1379      verify_gdbarch(): Confirm that the target updated the field
1380      correctly.
1381
1382      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1383      field is dumped out
1384
1385      \`\`startup_gdbarch()'': Append an initial value to the static
1386      variable (base values on the host's c-type system).
1387
1388      get_gdbarch(): Implement the set/get functions (probably using
1389      the macro's as shortcuts).
1390
1391      */
1392
1393 EOF
1394 function_list | while do_read
1395 do
1396     if class_is_variable_p
1397     then
1398         printf "  ${returntype} ${function};\n"
1399     elif class_is_function_p
1400     then
1401         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1402     fi
1403 done
1404 printf "};\n"
1405
1406 # A pre-initialized vector
1407 printf "\n"
1408 printf "\n"
1409 cat <<EOF
1410 /* The default architecture uses host values (for want of a better
1411    choice). */
1412 EOF
1413 printf "\n"
1414 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1415 printf "\n"
1416 printf "struct gdbarch startup_gdbarch =\n"
1417 printf "{\n"
1418 printf "  1, /* Always initialized.  */\n"
1419 printf "  /* basic architecture information */\n"
1420 function_list | while do_read
1421 do
1422     if class_is_info_p
1423     then
1424         printf "  ${staticdefault},  /* ${function} */\n"
1425     fi
1426 done
1427 cat <<EOF
1428   /* target specific vector and its dump routine */
1429   NULL, NULL,
1430   /*per-architecture data-pointers and swap regions */
1431   0, NULL, NULL,
1432   /* Multi-arch values */
1433 EOF
1434 function_list | while do_read
1435 do
1436     if class_is_function_p || class_is_variable_p
1437     then
1438         printf "  ${staticdefault},  /* ${function} */\n"
1439     fi
1440 done
1441 cat <<EOF
1442   /* startup_gdbarch() */
1443 };
1444
1445 struct gdbarch *current_gdbarch = &startup_gdbarch;
1446
1447 /* Do any initialization needed for a non-multiarch configuration
1448    after the _initialize_MODULE functions have been run.  */
1449 void
1450 initialize_non_multiarch (void)
1451 {
1452   alloc_gdbarch_data (&startup_gdbarch);
1453   /* Ensure that all swap areas are zeroed so that they again think
1454      they are starting from scratch.  */
1455   clear_gdbarch_swap (&startup_gdbarch);
1456   init_gdbarch_swap (&startup_gdbarch);
1457 }
1458 EOF
1459
1460 # Create a new gdbarch struct
1461 printf "\n"
1462 printf "\n"
1463 cat <<EOF
1464 /* Create a new \`\`struct gdbarch'' based on information provided by
1465    \`\`struct gdbarch_info''. */
1466 EOF
1467 printf "\n"
1468 cat <<EOF
1469 struct gdbarch *
1470 gdbarch_alloc (const struct gdbarch_info *info,
1471                struct gdbarch_tdep *tdep)
1472 {
1473   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1474      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1475      the current local architecture and not the previous global
1476      architecture.  This ensures that the new architectures initial
1477      values are not influenced by the previous architecture.  Once
1478      everything is parameterised with gdbarch, this will go away.  */
1479   struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1480   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1481
1482   alloc_gdbarch_data (current_gdbarch);
1483
1484   current_gdbarch->tdep = tdep;
1485 EOF
1486 printf "\n"
1487 function_list | while do_read
1488 do
1489     if class_is_info_p
1490     then
1491         printf "  current_gdbarch->${function} = info->${function};\n"
1492     fi
1493 done
1494 printf "\n"
1495 printf "  /* Force the explicit initialization of these. */\n"
1496 function_list | while do_read
1497 do
1498     if class_is_function_p || class_is_variable_p
1499     then
1500         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1501         then
1502           printf "  current_gdbarch->${function} = ${predefault};\n"
1503         fi
1504     fi
1505 done
1506 cat <<EOF
1507   /* gdbarch_alloc() */
1508
1509   return current_gdbarch;
1510 }
1511 EOF
1512
1513 # Free a gdbarch struct.
1514 printf "\n"
1515 printf "\n"
1516 cat <<EOF
1517 /* Free a gdbarch struct.  This should never happen in normal
1518    operation --- once you've created a gdbarch, you keep it around.
1519    However, if an architecture's init function encounters an error
1520    building the structure, it may need to clean up a partially
1521    constructed gdbarch.  */
1522
1523 void
1524 gdbarch_free (struct gdbarch *arch)
1525 {
1526   gdb_assert (arch != NULL);
1527   free_gdbarch_data (arch);
1528   xfree (arch);
1529 }
1530 EOF
1531
1532 # verify a new architecture
1533 printf "\n"
1534 printf "\n"
1535 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1536 printf "\n"
1537 cat <<EOF
1538 static void
1539 verify_gdbarch (struct gdbarch *gdbarch)
1540 {
1541   struct ui_file *log;
1542   struct cleanup *cleanups;
1543   long dummy;
1544   char *buf;
1545   /* Only perform sanity checks on a multi-arch target. */
1546   if (!GDB_MULTI_ARCH)
1547     return;
1548   log = mem_fileopen ();
1549   cleanups = make_cleanup_ui_file_delete (log);
1550   /* fundamental */
1551   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1552     fprintf_unfiltered (log, "\n\tbyte-order");
1553   if (gdbarch->bfd_arch_info == NULL)
1554     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1555   /* Check those that need to be defined for the given multi-arch level. */
1556 EOF
1557 function_list | while do_read
1558 do
1559     if class_is_function_p || class_is_variable_p
1560     then
1561         if [ "x${invalid_p}" = "x0" ]
1562         then
1563             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1564         elif class_is_predicate_p
1565         then
1566             printf "  /* Skip verify of ${function}, has predicate */\n"
1567         # FIXME: See do_read for potential simplification
1568         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1569         then
1570             printf "  if (${invalid_p})\n"
1571             printf "    gdbarch->${function} = ${postdefault};\n"
1572         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1573         then
1574             printf "  if (gdbarch->${function} == ${predefault})\n"
1575             printf "    gdbarch->${function} = ${postdefault};\n"
1576         elif [ -n "${postdefault}" ]
1577         then
1578             printf "  if (gdbarch->${function} == 0)\n"
1579             printf "    gdbarch->${function} = ${postdefault};\n"
1580         elif [ -n "${invalid_p}" ]
1581         then
1582             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1583             printf "      && (${invalid_p}))\n"
1584             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1585         elif [ -n "${predefault}" ]
1586         then
1587             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1588             printf "      && (gdbarch->${function} == ${predefault}))\n"
1589             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1590         fi
1591     fi
1592 done
1593 cat <<EOF
1594   buf = ui_file_xstrdup (log, &dummy);
1595   make_cleanup (xfree, buf);
1596   if (strlen (buf) > 0)
1597     internal_error (__FILE__, __LINE__,
1598                     "verify_gdbarch: the following are invalid ...%s",
1599                     buf);
1600   do_cleanups (cleanups);
1601 }
1602 EOF
1603
1604 # dump the structure
1605 printf "\n"
1606 printf "\n"
1607 cat <<EOF
1608 /* Print out the details of the current architecture. */
1609
1610 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1611    just happens to match the global variable \`\`current_gdbarch''.  That
1612    way macros refering to that variable get the local and not the global
1613    version - ulgh.  Once everything is parameterised with gdbarch, this
1614    will go away. */
1615
1616 void
1617 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1618 {
1619   fprintf_unfiltered (file,
1620                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1621                       GDB_MULTI_ARCH);
1622 EOF
1623 function_list | sort -t: -k 3 | while do_read
1624 do
1625     # First the predicate
1626     if class_is_predicate_p
1627     then
1628         if class_is_multiarch_p
1629         then
1630             printf "  if (GDB_MULTI_ARCH)\n"
1631             printf "    fprintf_unfiltered (file,\n"
1632             printf "                        \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1633             printf "                        gdbarch_${function}_p (current_gdbarch));\n"
1634         else
1635             printf "#ifdef ${macro}_P\n"
1636             printf "  fprintf_unfiltered (file,\n"
1637             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1638             printf "                      \"${macro}_P()\",\n"
1639             printf "                      XSTRING (${macro}_P ()));\n"
1640             printf "  fprintf_unfiltered (file,\n"
1641             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1642             printf "                      ${macro}_P ());\n"
1643             printf "#endif\n"
1644         fi
1645     fi
1646     # multiarch functions don't have macros.
1647     if class_is_multiarch_p
1648     then
1649         printf "  if (GDB_MULTI_ARCH)\n"
1650         printf "    fprintf_unfiltered (file,\n"
1651         printf "                        \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1652         printf "                        (long) current_gdbarch->${function});\n"
1653         continue
1654     fi
1655     # Print the macro definition.
1656     printf "#ifdef ${macro}\n"
1657     if [ "x${returntype}" = "xvoid" ]
1658     then
1659         printf "#if GDB_MULTI_ARCH\n"
1660         printf "  /* Macro might contain \`[{}]' when not multi-arch */\n"
1661     fi
1662     if class_is_function_p
1663     then
1664         printf "  fprintf_unfiltered (file,\n"
1665         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1666         printf "                      \"${macro}(${actual})\",\n"
1667         printf "                      XSTRING (${macro} (${actual})));\n"
1668     else
1669         printf "  fprintf_unfiltered (file,\n"
1670         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1671         printf "                      XSTRING (${macro}));\n"
1672     fi
1673     # Print the architecture vector value
1674     if [ "x${returntype}" = "xvoid" ]
1675     then
1676         printf "#endif\n"
1677     fi
1678     if [ "x${print_p}" = "x()" ]
1679     then
1680         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1681     elif [ "x${print_p}" = "x0" ]
1682     then
1683         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1684     elif [ -n "${print_p}" ]
1685     then
1686         printf "  if (${print_p})\n"
1687         printf "    fprintf_unfiltered (file,\n"
1688         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1689         printf "                        ${print});\n"
1690     elif class_is_function_p
1691     then
1692         printf "  if (GDB_MULTI_ARCH)\n"
1693         printf "    fprintf_unfiltered (file,\n"
1694         printf "                        \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1695         printf "                        (long) current_gdbarch->${function}\n"
1696         printf "                        /*${macro} ()*/);\n"
1697     else
1698         printf "  fprintf_unfiltered (file,\n"
1699         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1700         printf "                      ${print});\n"
1701     fi
1702     printf "#endif\n"
1703 done
1704 cat <<EOF
1705   if (current_gdbarch->dump_tdep != NULL)
1706     current_gdbarch->dump_tdep (current_gdbarch, file);
1707 }
1708 EOF
1709
1710
1711 # GET/SET
1712 printf "\n"
1713 cat <<EOF
1714 struct gdbarch_tdep *
1715 gdbarch_tdep (struct gdbarch *gdbarch)
1716 {
1717   if (gdbarch_debug >= 2)
1718     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1719   return gdbarch->tdep;
1720 }
1721 EOF
1722 printf "\n"
1723 function_list | while do_read
1724 do
1725     if class_is_predicate_p
1726     then
1727         printf "\n"
1728         printf "int\n"
1729         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1730         printf "{\n"
1731         printf "  gdb_assert (gdbarch != NULL);\n"
1732         if [ -n "${predicate}" ]
1733         then
1734             printf "  return ${predicate};\n"
1735         else
1736             printf "  return gdbarch->${function} != 0;\n"
1737         fi
1738         printf "}\n"
1739     fi
1740     if class_is_function_p
1741     then
1742         printf "\n"
1743         printf "${returntype}\n"
1744         if [ "x${formal}" = "xvoid" ]
1745         then
1746           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1747         else
1748           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1749         fi
1750         printf "{\n"
1751         printf "  gdb_assert (gdbarch != NULL);\n"
1752         printf "  if (gdbarch->${function} == 0)\n"
1753         printf "    internal_error (__FILE__, __LINE__,\n"
1754         printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1755         if class_is_predicate_p && test -n "${predicate}"
1756         then
1757             # Allow a call to a function with a predicate.
1758             printf "  /* Ignore predicate (${predicate}).  */\n"
1759         fi
1760         printf "  if (gdbarch_debug >= 2)\n"
1761         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1762         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1763         then
1764             if class_is_multiarch_p
1765             then
1766                 params="gdbarch"
1767             else
1768                 params=""
1769             fi
1770         else
1771             if class_is_multiarch_p
1772             then
1773                 params="gdbarch, ${actual}"
1774             else
1775                 params="${actual}"
1776             fi
1777         fi
1778         if [ "x${returntype}" = "xvoid" ]
1779         then
1780           printf "  gdbarch->${function} (${params});\n"
1781         else
1782           printf "  return gdbarch->${function} (${params});\n"
1783         fi
1784         printf "}\n"
1785         printf "\n"
1786         printf "void\n"
1787         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1788         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1789         printf "{\n"
1790         printf "  gdbarch->${function} = ${function};\n"
1791         printf "}\n"
1792     elif class_is_variable_p
1793     then
1794         printf "\n"
1795         printf "${returntype}\n"
1796         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1797         printf "{\n"
1798         printf "  gdb_assert (gdbarch != NULL);\n"
1799         if [ "x${invalid_p}" = "x0" ]
1800         then
1801             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1802         elif [ -n "${invalid_p}" ]
1803         then
1804           printf "  if (${invalid_p})\n"
1805           printf "    internal_error (__FILE__, __LINE__,\n"
1806           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1807         elif [ -n "${predefault}" ]
1808         then
1809           printf "  if (gdbarch->${function} == ${predefault})\n"
1810           printf "    internal_error (__FILE__, __LINE__,\n"
1811           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1812         fi
1813         printf "  if (gdbarch_debug >= 2)\n"
1814         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1815         printf "  return gdbarch->${function};\n"
1816         printf "}\n"
1817         printf "\n"
1818         printf "void\n"
1819         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1820         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1821         printf "{\n"
1822         printf "  gdbarch->${function} = ${function};\n"
1823         printf "}\n"
1824     elif class_is_info_p
1825     then
1826         printf "\n"
1827         printf "${returntype}\n"
1828         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1829         printf "{\n"
1830         printf "  gdb_assert (gdbarch != NULL);\n"
1831         printf "  if (gdbarch_debug >= 2)\n"
1832         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1833         printf "  return gdbarch->${function};\n"
1834         printf "}\n"
1835     fi
1836 done
1837
1838 # All the trailing guff
1839 cat <<EOF
1840
1841
1842 /* Keep a registry of per-architecture data-pointers required by GDB
1843    modules. */
1844
1845 struct gdbarch_data
1846 {
1847   unsigned index;
1848   int init_p;
1849   gdbarch_data_init_ftype *init;
1850   gdbarch_data_free_ftype *free;
1851 };
1852
1853 struct gdbarch_data_registration
1854 {
1855   struct gdbarch_data *data;
1856   struct gdbarch_data_registration *next;
1857 };
1858
1859 struct gdbarch_data_registry
1860 {
1861   unsigned nr;
1862   struct gdbarch_data_registration *registrations;
1863 };
1864
1865 struct gdbarch_data_registry gdbarch_data_registry =
1866 {
1867   0, NULL,
1868 };
1869
1870 struct gdbarch_data *
1871 register_gdbarch_data (gdbarch_data_init_ftype *init,
1872                        gdbarch_data_free_ftype *free)
1873 {
1874   struct gdbarch_data_registration **curr;
1875   /* Append the new registraration.  */
1876   for (curr = &gdbarch_data_registry.registrations;
1877        (*curr) != NULL;
1878        curr = &(*curr)->next);
1879   (*curr) = XMALLOC (struct gdbarch_data_registration);
1880   (*curr)->next = NULL;
1881   (*curr)->data = XMALLOC (struct gdbarch_data);
1882   (*curr)->data->index = gdbarch_data_registry.nr++;
1883   (*curr)->data->init = init;
1884   (*curr)->data->init_p = 1;
1885   (*curr)->data->free = free;
1886   return (*curr)->data;
1887 }
1888
1889
1890 /* Create/delete the gdbarch data vector. */
1891
1892 static void
1893 alloc_gdbarch_data (struct gdbarch *gdbarch)
1894 {
1895   gdb_assert (gdbarch->data == NULL);
1896   gdbarch->nr_data = gdbarch_data_registry.nr;
1897   gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1898 }
1899
1900 static void
1901 free_gdbarch_data (struct gdbarch *gdbarch)
1902 {
1903   struct gdbarch_data_registration *rego;
1904   gdb_assert (gdbarch->data != NULL);
1905   for (rego = gdbarch_data_registry.registrations;
1906        rego != NULL;
1907        rego = rego->next)
1908     {
1909       struct gdbarch_data *data = rego->data;
1910       gdb_assert (data->index < gdbarch->nr_data);
1911       if (data->free != NULL && gdbarch->data[data->index] != NULL)
1912         {
1913           data->free (gdbarch, gdbarch->data[data->index]);
1914           gdbarch->data[data->index] = NULL;
1915         }
1916     }
1917   xfree (gdbarch->data);
1918   gdbarch->data = NULL;
1919 }
1920
1921
1922 /* Initialize the current value of the specified per-architecture
1923    data-pointer. */
1924
1925 void
1926 set_gdbarch_data (struct gdbarch *gdbarch,
1927                   struct gdbarch_data *data,
1928                   void *pointer)
1929 {
1930   gdb_assert (data->index < gdbarch->nr_data);
1931   if (gdbarch->data[data->index] != NULL)
1932     {
1933       gdb_assert (data->free != NULL);
1934       data->free (gdbarch, gdbarch->data[data->index]);
1935     }
1936   gdbarch->data[data->index] = pointer;
1937 }
1938
1939 /* Return the current value of the specified per-architecture
1940    data-pointer. */
1941
1942 void *
1943 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1944 {
1945   gdb_assert (data->index < gdbarch->nr_data);
1946   /* The data-pointer isn't initialized, call init() to get a value but
1947      only if the architecture initializaiton has completed.  Otherwise
1948      punt - hope that the caller knows what they are doing.  */
1949   if (gdbarch->data[data->index] == NULL
1950       && gdbarch->initialized_p)
1951     {
1952       /* Be careful to detect an initialization cycle.  */
1953       gdb_assert (data->init_p);
1954       data->init_p = 0;
1955       gdb_assert (data->init != NULL);
1956       gdbarch->data[data->index] = data->init (gdbarch);
1957       data->init_p = 1;
1958       gdb_assert (gdbarch->data[data->index] != NULL);
1959     }
1960   return gdbarch->data[data->index];
1961 }
1962
1963
1964
1965 /* Keep a registry of swapped data required by GDB modules. */
1966
1967 struct gdbarch_swap
1968 {
1969   void *swap;
1970   struct gdbarch_swap_registration *source;
1971   struct gdbarch_swap *next;
1972 };
1973
1974 struct gdbarch_swap_registration
1975 {
1976   void *data;
1977   unsigned long sizeof_data;
1978   gdbarch_swap_ftype *init;
1979   struct gdbarch_swap_registration *next;
1980 };
1981
1982 struct gdbarch_swap_registry
1983 {
1984   int nr;
1985   struct gdbarch_swap_registration *registrations;
1986 };
1987
1988 struct gdbarch_swap_registry gdbarch_swap_registry =
1989 {
1990   0, NULL,
1991 };
1992
1993 void
1994 register_gdbarch_swap (void *data,
1995                        unsigned long sizeof_data,
1996                        gdbarch_swap_ftype *init)
1997 {
1998   struct gdbarch_swap_registration **rego;
1999   for (rego = &gdbarch_swap_registry.registrations;
2000        (*rego) != NULL;
2001        rego = &(*rego)->next);
2002   (*rego) = XMALLOC (struct gdbarch_swap_registration);
2003   (*rego)->next = NULL;
2004   (*rego)->init = init;
2005   (*rego)->data = data;
2006   (*rego)->sizeof_data = sizeof_data;
2007 }
2008
2009 static void
2010 clear_gdbarch_swap (struct gdbarch *gdbarch)
2011 {
2012   struct gdbarch_swap *curr;
2013   for (curr = gdbarch->swap;
2014        curr != NULL;
2015        curr = curr->next)
2016     {
2017       memset (curr->source->data, 0, curr->source->sizeof_data);
2018     }
2019 }
2020
2021 static void
2022 init_gdbarch_swap (struct gdbarch *gdbarch)
2023 {
2024   struct gdbarch_swap_registration *rego;
2025   struct gdbarch_swap **curr = &gdbarch->swap;
2026   for (rego = gdbarch_swap_registry.registrations;
2027        rego != NULL;
2028        rego = rego->next)
2029     {
2030       if (rego->data != NULL)
2031         {
2032           (*curr) = XMALLOC (struct gdbarch_swap);
2033           (*curr)->source = rego;
2034           (*curr)->swap = xmalloc (rego->sizeof_data);
2035           (*curr)->next = NULL;
2036           curr = &(*curr)->next;
2037         }
2038       if (rego->init != NULL)
2039         rego->init ();
2040     }
2041 }
2042
2043 static void
2044 swapout_gdbarch_swap (struct gdbarch *gdbarch)
2045 {
2046   struct gdbarch_swap *curr;
2047   for (curr = gdbarch->swap;
2048        curr != NULL;
2049        curr = curr->next)
2050     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
2051 }
2052
2053 static void
2054 swapin_gdbarch_swap (struct gdbarch *gdbarch)
2055 {
2056   struct gdbarch_swap *curr;
2057   for (curr = gdbarch->swap;
2058        curr != NULL;
2059        curr = curr->next)
2060     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2061 }
2062
2063
2064 /* Keep a registry of the architectures known by GDB. */
2065
2066 struct gdbarch_registration
2067 {
2068   enum bfd_architecture bfd_architecture;
2069   gdbarch_init_ftype *init;
2070   gdbarch_dump_tdep_ftype *dump_tdep;
2071   struct gdbarch_list *arches;
2072   struct gdbarch_registration *next;
2073 };
2074
2075 static struct gdbarch_registration *gdbarch_registry = NULL;
2076
2077 static void
2078 append_name (const char ***buf, int *nr, const char *name)
2079 {
2080   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2081   (*buf)[*nr] = name;
2082   *nr += 1;
2083 }
2084
2085 const char **
2086 gdbarch_printable_names (void)
2087 {
2088   if (GDB_MULTI_ARCH)
2089     {
2090       /* Accumulate a list of names based on the registed list of
2091          architectures. */
2092       enum bfd_architecture a;
2093       int nr_arches = 0;
2094       const char **arches = NULL;
2095       struct gdbarch_registration *rego;
2096       for (rego = gdbarch_registry;
2097            rego != NULL;
2098            rego = rego->next)
2099         {
2100           const struct bfd_arch_info *ap;
2101           ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2102           if (ap == NULL)
2103             internal_error (__FILE__, __LINE__,
2104                             "gdbarch_architecture_names: multi-arch unknown");
2105           do
2106             {
2107               append_name (&arches, &nr_arches, ap->printable_name);
2108               ap = ap->next;
2109             }
2110           while (ap != NULL);
2111         }
2112       append_name (&arches, &nr_arches, NULL);
2113       return arches;
2114     }
2115   else
2116     /* Just return all the architectures that BFD knows.  Assume that
2117        the legacy architecture framework supports them. */
2118     return bfd_arch_list ();
2119 }
2120
2121
2122 void
2123 gdbarch_register (enum bfd_architecture bfd_architecture,
2124                   gdbarch_init_ftype *init,
2125                   gdbarch_dump_tdep_ftype *dump_tdep)
2126 {
2127   struct gdbarch_registration **curr;
2128   const struct bfd_arch_info *bfd_arch_info;
2129   /* Check that BFD recognizes this architecture */
2130   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2131   if (bfd_arch_info == NULL)
2132     {
2133       internal_error (__FILE__, __LINE__,
2134                       "gdbarch: Attempt to register unknown architecture (%d)",
2135                       bfd_architecture);
2136     }
2137   /* Check that we haven't seen this architecture before */
2138   for (curr = &gdbarch_registry;
2139        (*curr) != NULL;
2140        curr = &(*curr)->next)
2141     {
2142       if (bfd_architecture == (*curr)->bfd_architecture)
2143         internal_error (__FILE__, __LINE__,
2144                         "gdbarch: Duplicate registraration of architecture (%s)",
2145                         bfd_arch_info->printable_name);
2146     }
2147   /* log it */
2148   if (gdbarch_debug)
2149     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2150                         bfd_arch_info->printable_name,
2151                         (long) init);
2152   /* Append it */
2153   (*curr) = XMALLOC (struct gdbarch_registration);
2154   (*curr)->bfd_architecture = bfd_architecture;
2155   (*curr)->init = init;
2156   (*curr)->dump_tdep = dump_tdep;
2157   (*curr)->arches = NULL;
2158   (*curr)->next = NULL;
2159   /* When non- multi-arch, install whatever target dump routine we've
2160      been provided - hopefully that routine has been written correctly
2161      and works regardless of multi-arch. */
2162   if (!GDB_MULTI_ARCH && dump_tdep != NULL
2163       && startup_gdbarch.dump_tdep == NULL)
2164     startup_gdbarch.dump_tdep = dump_tdep;
2165 }
2166
2167 void
2168 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2169                        gdbarch_init_ftype *init)
2170 {
2171   gdbarch_register (bfd_architecture, init, NULL);
2172 }
2173
2174
2175 /* Look for an architecture using gdbarch_info.  Base search on only
2176    BFD_ARCH_INFO and BYTE_ORDER. */
2177
2178 struct gdbarch_list *
2179 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2180                              const struct gdbarch_info *info)
2181 {
2182   for (; arches != NULL; arches = arches->next)
2183     {
2184       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2185         continue;
2186       if (info->byte_order != arches->gdbarch->byte_order)
2187         continue;
2188       if (info->osabi != arches->gdbarch->osabi)
2189         continue;
2190       return arches;
2191     }
2192   return NULL;
2193 }
2194
2195
2196 /* Update the current architecture. Return ZERO if the update request
2197    failed. */
2198
2199 int
2200 gdbarch_update_p (struct gdbarch_info info)
2201 {
2202   struct gdbarch *new_gdbarch;
2203   struct gdbarch *old_gdbarch;
2204   struct gdbarch_registration *rego;
2205
2206   /* Fill in missing parts of the INFO struct using a number of
2207      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
2208
2209   /* \`\`(gdb) set architecture ...'' */
2210   if (info.bfd_arch_info == NULL
2211       && !TARGET_ARCHITECTURE_AUTO)
2212     info.bfd_arch_info = TARGET_ARCHITECTURE;
2213   if (info.bfd_arch_info == NULL
2214       && info.abfd != NULL
2215       && bfd_get_arch (info.abfd) != bfd_arch_unknown
2216       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2217     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2218   if (info.bfd_arch_info == NULL)
2219     info.bfd_arch_info = TARGET_ARCHITECTURE;
2220
2221   /* \`\`(gdb) set byte-order ...'' */
2222   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2223       && !TARGET_BYTE_ORDER_AUTO)
2224     info.byte_order = TARGET_BYTE_ORDER;
2225   /* From the INFO struct. */
2226   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2227       && info.abfd != NULL)
2228     info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2229                        : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2230                        : BFD_ENDIAN_UNKNOWN);
2231   /* From the current target. */
2232   if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2233     info.byte_order = TARGET_BYTE_ORDER;
2234
2235   /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi.  */
2236   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2237     info.osabi = gdbarch_lookup_osabi (info.abfd);
2238   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2239     info.osabi = current_gdbarch->osabi;
2240
2241   /* Must have found some sort of architecture. */
2242   gdb_assert (info.bfd_arch_info != NULL);
2243
2244   if (gdbarch_debug)
2245     {
2246       fprintf_unfiltered (gdb_stdlog,
2247                           "gdbarch_update: info.bfd_arch_info %s\n",
2248                           (info.bfd_arch_info != NULL
2249                            ? info.bfd_arch_info->printable_name
2250                            : "(null)"));
2251       fprintf_unfiltered (gdb_stdlog,
2252                           "gdbarch_update: info.byte_order %d (%s)\n",
2253                           info.byte_order,
2254                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2255                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2256                            : "default"));
2257       fprintf_unfiltered (gdb_stdlog,
2258                           "gdbarch_update: info.osabi %d (%s)\n",
2259                           info.osabi, gdbarch_osabi_name (info.osabi));
2260       fprintf_unfiltered (gdb_stdlog,
2261                           "gdbarch_update: info.abfd 0x%lx\n",
2262                           (long) info.abfd);
2263       fprintf_unfiltered (gdb_stdlog,
2264                           "gdbarch_update: info.tdep_info 0x%lx\n",
2265                           (long) info.tdep_info);
2266     }
2267
2268   /* Find the target that knows about this architecture. */
2269   for (rego = gdbarch_registry;
2270        rego != NULL;
2271        rego = rego->next)
2272     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2273       break;
2274   if (rego == NULL)
2275     {
2276       if (gdbarch_debug)
2277         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2278       return 0;
2279     }
2280
2281   /* Swap the data belonging to the old target out setting the
2282      installed data to zero.  This stops the ->init() function trying
2283      to refer to the previous architecture's global data structures.  */
2284   swapout_gdbarch_swap (current_gdbarch);
2285   clear_gdbarch_swap (current_gdbarch);
2286
2287   /* Save the previously selected architecture, setting the global to
2288      NULL.  This stops ->init() trying to use the previous
2289      architecture's configuration.  The previous architecture may not
2290      even be of the same architecture family.  The most recent
2291      architecture of the same family is found at the head of the
2292      rego->arches list.  */
2293   old_gdbarch = current_gdbarch;
2294   current_gdbarch = NULL;
2295
2296   /* Ask the target for a replacement architecture. */
2297   new_gdbarch = rego->init (info, rego->arches);
2298
2299   /* Did the target like it?  No. Reject the change and revert to the
2300      old architecture.  */
2301   if (new_gdbarch == NULL)
2302     {
2303       if (gdbarch_debug)
2304         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2305       swapin_gdbarch_swap (old_gdbarch);
2306       current_gdbarch = old_gdbarch;
2307       return 0;
2308     }
2309
2310   /* Did the architecture change?  No.  Oops, put the old architecture
2311      back.  */
2312   if (old_gdbarch == new_gdbarch)
2313     {
2314       if (gdbarch_debug)
2315         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2316                             (long) new_gdbarch,
2317                             new_gdbarch->bfd_arch_info->printable_name);
2318       swapin_gdbarch_swap (old_gdbarch);
2319       current_gdbarch = old_gdbarch;
2320       return 1;
2321     }
2322
2323   /* Is this a pre-existing architecture?  Yes. Move it to the front
2324      of the list of architectures (keeping the list sorted Most
2325      Recently Used) and then copy it in.  */
2326   {
2327     struct gdbarch_list **list;
2328     for (list = &rego->arches;
2329          (*list) != NULL;
2330          list = &(*list)->next)
2331       {
2332         if ((*list)->gdbarch == new_gdbarch)
2333           {
2334             struct gdbarch_list *this;
2335             if (gdbarch_debug)
2336               fprintf_unfiltered (gdb_stdlog,
2337                                   "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2338                                   (long) new_gdbarch,
2339                                   new_gdbarch->bfd_arch_info->printable_name);
2340             /* Unlink this.  */
2341             this = (*list);
2342             (*list) = this->next;
2343             /* Insert in the front.  */
2344             this->next = rego->arches;
2345             rego->arches = this;
2346             /* Copy the new architecture in.  */
2347             current_gdbarch = new_gdbarch;
2348             swapin_gdbarch_swap (new_gdbarch);
2349             architecture_changed_event ();
2350             return 1;
2351           }
2352       }
2353   }
2354
2355   /* Prepend this new architecture to the architecture list (keep the
2356      list sorted Most Recently Used).  */
2357   {
2358     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2359     this->next = rego->arches;
2360     this->gdbarch = new_gdbarch;
2361     rego->arches = this;
2362   }
2363
2364   /* Switch to this new architecture marking it initialized.  */
2365   current_gdbarch = new_gdbarch;
2366   current_gdbarch->initialized_p = 1;
2367   if (gdbarch_debug)
2368     {
2369       fprintf_unfiltered (gdb_stdlog,
2370                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2371                           (long) new_gdbarch,
2372                           new_gdbarch->bfd_arch_info->printable_name);
2373     }
2374
2375   /* Check that the newly installed architecture is valid.  Plug in
2376      any post init values.  */
2377   new_gdbarch->dump_tdep = rego->dump_tdep;
2378   verify_gdbarch (new_gdbarch);
2379
2380   /* Initialize the per-architecture memory (swap) areas.
2381      CURRENT_GDBARCH must be update before these modules are
2382      called. */
2383   init_gdbarch_swap (new_gdbarch);
2384
2385   /* Initialize the per-architecture data.  CURRENT_GDBARCH
2386      must be updated before these modules are called. */
2387   architecture_changed_event ();
2388
2389   if (gdbarch_debug)
2390     gdbarch_dump (current_gdbarch, gdb_stdlog);
2391
2392   return 1;
2393 }
2394
2395
2396 /* Disassembler */
2397
2398 /* Pointer to the target-dependent disassembly function.  */
2399 int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info *);
2400
2401 extern void _initialize_gdbarch (void);
2402
2403 void
2404 _initialize_gdbarch (void)
2405 {
2406   struct cmd_list_element *c;
2407
2408   add_show_from_set (add_set_cmd ("arch",
2409                                   class_maintenance,
2410                                   var_zinteger,
2411                                   (char *)&gdbarch_debug,
2412                                   "Set architecture debugging.\\n\\
2413 When non-zero, architecture debugging is enabled.", &setdebuglist),
2414                      &showdebuglist);
2415   c = add_set_cmd ("archdebug",
2416                    class_maintenance,
2417                    var_zinteger,
2418                    (char *)&gdbarch_debug,
2419                    "Set architecture debugging.\\n\\
2420 When non-zero, architecture debugging is enabled.", &setlist);
2421
2422   deprecate_cmd (c, "set debug arch");
2423   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2424 }
2425 EOF
2426
2427 # close things off
2428 exec 1>&2
2429 #../move-if-change new-gdbarch.c gdbarch.c
2430 compare_new gdbarch.c