gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   5 #
   6 # This file is part of GDB.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21
  22 # Make certain that the script is running in an internationalized
  23 # environment.
  24 LANG=c ; export LANG
  25 LC_ALL=c ; export LC_ALL
  26
  27
  28 compare_new ()
  29 {
  30     file=$1
  31     if test ! -r ${file}
  32     then
  33         echo "${file} missing? cp new-${file} ${file}" 1>&2
  34     elif diff -u ${file} new-${file}
  35     then
  36         echo "${file} unchanged" 1>&2
  37     else
  38         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  39     fi
  40 }
  41
  42
  43 # Format of the input table
  44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  45
  46 do_read ()
  47 {
  48     comment=""
  49     class=""
  50     while read line
  51     do
  52         if test "${line}" = ""
  53         then
  54             continue
  55         elif test "${line}" = "#" -a "${comment}" = ""
  56         then
  57             continue
  58         elif expr "${line}" : "#" > /dev/null
  59         then
  60             comment="${comment}
  61 ${line}"
  62         else
  63
  64             # The semantics of IFS varies between different SH's.  Some
  65             # treat ``::' as three fields while some treat it as just too.
  66             # Work around this by eliminating ``::'' ....
  67             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  68
  69             OFS="${IFS}" ; IFS="[:]"
  70             eval read ${read} <<EOF
  71 ${line}
  72 EOF
  73             IFS="${OFS}"
  74
  75             # .... and then going back through each field and strip out those
  76             # that ended up with just that space character.
  77             for r in ${read}
  78             do
  79                 if eval test \"\${${r}}\" = \"\ \"
  80                 then
  81                     eval ${r}=""
  82                 fi
  83             done
  84
  85             case "${level}" in
  86                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  87                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  88                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  89                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  90             esac
  91
  92             case "${class}" in
  93                 m ) staticdefault="${predefault}" ;;
  94                 M ) staticdefault="0" ;;
  95                 * ) test "${staticdefault}" || staticdefault=0 ;;
  96             esac
  97
  98             # come up with a format, use a few guesses for variables
  99             case ":${class}:${fmt}:${print}:" in
 100                 :[vV]::: )
 101                     if [ "${returntype}" = int ]
 102                     then
 103                         fmt="%d"
 104                         print="${macro}"
 105                     elif [ "${returntype}" = long ]
 106                     then
 107                         fmt="%ld"
 108                         print="${macro}"
 109                     fi
 110                     ;;
 111             esac
 112             test "${fmt}" || fmt="%ld"
 113             test "${print}" || print="(long) ${macro}"
 114
 115             case "${class}" in
 116             F | V | M )
 117                 case "${invalid_p}" in
 118                 "" )
 119                     if test -n "${predefault}"
 120                     then
 121                         #invalid_p="gdbarch->${function} == ${predefault}"
 122                         predicate="gdbarch->${function} != ${predefault}"
 123                     elif class_is_variable_p
 124                     then
 125                         predicate="gdbarch->${function} != 0"
 126                     elif class_is_function_p
 127                     then
 128                         predicate="gdbarch->${function} != NULL"
 129                     fi
 130                     ;;
 131                 * )
 132                     echo "Predicate function ${function} with invalid_p." 1>&2
 133                     kill $$
 134                     exit 1
 135                     ;;
 136                 esac
 137             esac
 138
 139             # PREDEFAULT is a valid fallback definition of MEMBER when
 140             # multi-arch is not enabled.  This ensures that the
 141             # default value, when multi-arch is the same as the
 142             # default value when not multi-arch.  POSTDEFAULT is
 143             # always a valid definition of MEMBER as this again
 144             # ensures consistency.
 145
 146             if [ -n "${postdefault}" ]
 147             then
 148                 fallbackdefault="${postdefault}"
 149             elif [ -n "${predefault}" ]
 150             then
 151                 fallbackdefault="${predefault}"
 152             else
 153                 fallbackdefault="0"
 154             fi
 155
 156             #NOT YET: See gdbarch.log for basic verification of
 157             # database
 158
 159             break
 160         fi
 161     done
 162     if [ -n "${class}" ]
 163     then
 164         true
 165     else
 166         false
 167     fi
 168 }
 169
 170
 171 fallback_default_p ()
 172 {
 173     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 174         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 175 }
 176
 177 class_is_variable_p ()
 178 {
 179     case "${class}" in
 180         *v* | *V* ) true ;;
 181         * ) false ;;
 182     esac
 183 }
 184
 185 class_is_function_p ()
 186 {
 187     case "${class}" in
 188         *f* | *F* | *m* | *M* ) true ;;
 189         * ) false ;;
 190     esac
 191 }
 192
 193 class_is_multiarch_p ()
 194 {
 195     case "${class}" in
 196         *m* | *M* ) true ;;
 197         * ) false ;;
 198     esac
 199 }
 200
 201 class_is_predicate_p ()
 202 {
 203     case "${class}" in
 204         *F* | *V* | *M* ) true ;;
 205         * ) false ;;
 206     esac
 207 }
 208
 209 class_is_info_p ()
 210 {
 211     case "${class}" in
 212         *i* ) true ;;
 213         * ) false ;;
 214     esac
 215 }
 216
 217
 218 # dump out/verify the doco
 219 for field in ${read}
 220 do
 221   case ${field} in
 222
 223     class ) : ;;
 224
 225         # # -> line disable
 226         # f -> function
 227         #   hiding a function
 228         # F -> function + predicate
 229         #   hiding a function + predicate to test function validity
 230         # v -> variable
 231         #   hiding a variable
 232         # V -> variable + predicate
 233         #   hiding a variable + predicate to test variables validity
 234         # i -> set from info
 235         #   hiding something from the ``struct info'' object
 236         # m -> multi-arch function
 237         #   hiding a multi-arch function (parameterised with the architecture)
 238         # M -> multi-arch function + predicate
 239         #   hiding a multi-arch function + predicate to test function validity
 240
 241     level ) : ;;
 242
 243         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 244         # LEVEL is a predicate on checking that a given method is
 245         # initialized (using INVALID_P).
 246
 247     macro ) : ;;
 248
 249         # The name of the MACRO that this method is to be accessed by.
 250
 251     returntype ) : ;;
 252
 253         # For functions, the return type; for variables, the data type
 254
 255     function ) : ;;
 256
 257         # For functions, the member function name; for variables, the
 258         # variable name.  Member function names are always prefixed with
 259         # ``gdbarch_'' for name-space purity.
 260
 261     formal ) : ;;
 262
 263         # The formal argument list.  It is assumed that the formal
 264         # argument list includes the actual name of each list element.
 265         # A function with no arguments shall have ``void'' as the
 266         # formal argument list.
 267
 268     actual ) : ;;
 269
 270         # The list of actual arguments.  The arguments specified shall
 271         # match the FORMAL list given above.  Functions with out
 272         # arguments leave this blank.
 273
 274     attrib ) : ;;
 275
 276         # Any GCC attributes that should be attached to the function
 277         # declaration.  At present this field is unused.
 278
 279     staticdefault ) : ;;
 280
 281         # To help with the GDB startup a static gdbarch object is
 282         # created.  STATICDEFAULT is the value to insert into that
 283         # static gdbarch object.  Since this a static object only
 284         # simple expressions can be used.
 285
 286         # If STATICDEFAULT is empty, zero is used.
 287
 288     predefault ) : ;;
 289
 290         # An initial value to assign to MEMBER of the freshly
 291         # malloc()ed gdbarch object.  After initialization, the
 292         # freshly malloc()ed object is passed to the target
 293         # architecture code for further updates.
 294
 295         # If PREDEFAULT is empty, zero is used.
 296
 297         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 298         # INVALID_P are specified, PREDEFAULT will be used as the
 299         # default for the non- multi-arch target.
 300
 301         # A zero PREDEFAULT function will force the fallback to call
 302         # internal_error().
 303
 304         # Variable declarations can refer to ``gdbarch'' which will
 305         # contain the current architecture.  Care should be taken.
 306
 307     postdefault ) : ;;
 308
 309         # A value to assign to MEMBER of the new gdbarch object should
 310         # the target architecture code fail to change the PREDEFAULT
 311         # value.
 312
 313         # If POSTDEFAULT is empty, no post update is performed.
 314
 315         # If both INVALID_P and POSTDEFAULT are non-empty then
 316         # INVALID_P will be used to determine if MEMBER should be
 317         # changed to POSTDEFAULT.
 318
 319         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 320         # specified, POSTDEFAULT will be used as the default for the
 321         # non- multi-arch target (regardless of the value of
 322         # PREDEFAULT).
 323
 324         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 325
 326         # Variable declarations can refer to ``gdbarch'' which will
 327         # contain the current architecture.  Care should be taken.
 328
 329     invalid_p ) : ;;
 330
 331         # A predicate equation that validates MEMBER.  Non-zero is
 332         # returned if the code creating the new architecture failed to
 333         # initialize MEMBER or the initialized the member is invalid.
 334         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 335         # that value.  If POSTDEFAULT is empty then internal_error()
 336         # is called.
 337
 338         # If INVALID_P is empty, a check that MEMBER is no longer
 339         # equal to PREDEFAULT is used.
 340
 341         # The expression ``0'' disables the INVALID_P check making
 342         # PREDEFAULT a legitimate value.
 343
 344         # See also PREDEFAULT and POSTDEFAULT.
 345
 346     fmt ) : ;;
 347
 348         # printf style format string that can be used to print out the
 349         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 350         # ignored and the function address is printed.
 351
 352         # If FMT is empty, ``%ld'' is used.
 353
 354     print ) : ;;
 355
 356         # An optional equation that casts MEMBER to a value suitable
 357         # for formatting by FMT.
 358
 359         # If PRINT is empty, ``(long)'' is used.
 360
 361     print_p ) : ;;
 362
 363         # An optional indicator for any predicte to wrap around the
 364         # print member code.
 365
 366         #   () -> Call a custom function to do the dump.
 367         #   exp -> Wrap print up in ``if (${print_p}) ...
 368         #   ``'' -> No predicate
 369
 370         # If PRINT_P is empty, ``1'' is always used.
 371
 372     description ) : ;;
 373
 374         # Currently unused.
 375
 376     *)
 377         echo "Bad field ${field}"
 378         exit 1;;
 379   esac
 380 done
 381
 382
 383 function_list ()
 384 {
 385   # See below (DOCO) for description of each field
 386   cat <<EOF
 387 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 388 #
 389 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
 390 #
 391 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
 392 # Number of bits in a char or unsigned char for the target machine.
 393 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 394 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 395 #
 396 # Number of bits in a short or unsigned short for the target machine.
 397 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 398 # Number of bits in an int or unsigned int for the target machine.
 399 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 400 # Number of bits in a long or unsigned long for the target machine.
 401 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 402 # Number of bits in a long long or unsigned long long for the target
 403 # machine.
 404 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 405 # Number of bits in a float for the target machine.
 406 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 407 # Number of bits in a double for the target machine.
 408 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 409 # Number of bits in a long double for the target machine.
 410 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
 411 # For most targets, a pointer on the target and its representation as an
 412 # address in GDB have the same size and "look the same".  For such a
 413 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 414 # / addr_bit will be set from it.
 415 #
 416 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 417 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 418 #
 419 # ptr_bit is the size of a pointer on the target
 420 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 421 # addr_bit is the size of a target address as represented in gdb
 422 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 423 # Number of bits in a BFD_VMA for the target object file format.
 424 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 425 #
 426 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
 427 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
 428 #
 429 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
 430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 431 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
 432 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
 433 # Function for getting target's idea of a frame pointer.  FIXME: GDB's
 434 # whole scheme for dealing with "frames" and "frame pointers" needs a
 435 # serious shakedown.
 436 f:2:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0
 437 #
 438 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
 439 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
 440 #
 441 v:2:NUM_REGS:int:num_regs::::0:-1
 442 # This macro gives the number of pseudo-registers that live in the
 443 # register namespace but do not get fetched or stored on the target.
 444 # These pseudo-registers may be aliases for other registers,
 445 # combinations of other registers, or they may be computed by GDB.
 446 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 447
 448 # GDB's standard (or well known) register numbers.  These can map onto
 449 # a real register or a pseudo (computed) register or not be defined at
 450 # all (-1).
 451 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
 452 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
 453 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
 454 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
 455 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 456 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
 457 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 458 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 459 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 460 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 461 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 462 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 463 # Convert from an sdb register number to an internal gdb register number.
 464 # This should be defined in tm.h, if REGISTER_NAMES is not set up
 465 # to map one to one onto the sdb register numbers.
 466 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 467 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 468 f::REGISTER_NAME:const char *:register_name:int regnr:regnr
 469
 470 # REGISTER_TYPE is a direct replacement for REGISTER_VIRTUAL_TYPE.
 471 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr
 472 # REGISTER_TYPE is a direct replacement for REGISTER_VIRTUAL_TYPE.
 473 F:2:REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr
 474 # DEPRECATED_REGISTER_BYTES can be deleted.  The value is computed
 475 # from REGISTER_TYPE.
 476 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
 477 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
 478 # register offsets computed using just REGISTER_TYPE, this can be
 479 # deleted.  See: maint print registers.  NOTE: cagney/2002-05-02: This
 480 # function with predicate has a valid (callable) initial value.  As a
 481 # consequence, even when the predicate is false, the corresponding
 482 # function works.  This simplifies the migration process - old code,
 483 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
 484 F::REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
 485 # If all registers have identical raw and virtual sizes and those
 486 # sizes agree with the value computed from REGISTER_TYPE,
 487 # DEPRECATED_REGISTER_RAW_SIZE can be deleted.  See: maint print
 488 # registers.
 489 F:2:REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 490 # If all registers have identical raw and virtual sizes and those
 491 # sizes agree with the value computed from REGISTER_TYPE,
 492 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted.  See: maint print
 493 # registers.
 494 F:2:REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 495 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted.  It has been
 496 # replaced by the constant MAX_REGISTER_SIZE.
 497 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
 498 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted.  It has been
 499 # replaced by the constant MAX_REGISTER_SIZE.
 500 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
 501
 502 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
 503 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info
 504 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 505 # SAVE_DUMMY_FRAME_TOS.
 506 F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp
 507 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 508 # DEPRECATED_FP_REGNUM.
 509 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
 510 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 511 # DEPRECATED_TARGET_READ_FP.
 512 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
 513
 514 # See gdbint.texinfo.  See infcall.c.  New, all singing all dancing,
 515 # replacement for DEPRECATED_PUSH_ARGUMENTS.
 516 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:CORE_ADDR func_addr, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:func_addr, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
 517 # PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS.
 518 F:2:DEPRECATED_PUSH_ARGUMENTS:CORE_ADDR:deprecated_push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr
 519 # DEPRECATED_USE_GENERIC_DUMMY_FRAMES can be deleted.  Always true.
 520 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
 521 # Implement PUSH_RETURN_ADDRESS, and then merge in
 522 # DEPRECATED_PUSH_RETURN_ADDRESS.
 523 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
 524 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
 525 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
 526 # DEPRECATED_REGISTER_SIZE can be deleted.
 527 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
 528 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
 529 F::DEPRECATED_CALL_DUMMY_ADDRESS:CORE_ADDR:deprecated_call_dummy_address:void
 530 # DEPRECATED_CALL_DUMMY_START_OFFSET can be deleted.
 531 v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset
 532 # DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET can be deleted.
 533 v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset
 534 # DEPRECATED_CALL_DUMMY_LENGTH can be deleted.
 535 v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length
 536 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
 537 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 538 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
 539 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 540 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_CALL_DUMMY_STACK_ADJUST.
 541 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust
 542 # DEPRECATED_FIX_CALL_DUMMY can be deleted.  For the SPARC, implement
 543 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
 544 F::DEPRECATED_FIX_CALL_DUMMY:void:deprecated_fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p
 545 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
 546 M::PUSH_DUMMY_CODE:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr
 547 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
 548 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
 549 # Implement PUSH_DUMMY_CALL, then delete
 550 # DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED.
 551 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
 552
 553 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 554 m:2:PRINT_REGISTERS_INFO:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all:::default_print_registers_info::0
 555 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 556 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 557 # MAP a GDB RAW register number onto a simulator register number.  See
 558 # also include/...-sim.h.
 559 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 560 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
 561 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 562 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 563 # setjmp/longjmp support.
 564 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
 565 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 566 # (callable) initial value.  As a consequence, even when the predicate
 567 # is false, the corresponding function works.  This simplifies the
 568 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 569 # doesn't need to be modified.
 570 F::DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::generic_pc_in_call_dummy:generic_pc_in_call_dummy
 571 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
 572 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 573 #
 574 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 575 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 576 F:2:DEPRECATED_GET_SAVED_REGISTER:void:deprecated_get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval
 577 #
 578 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 579 # For raw <-> cooked register conversions, replaced by pseudo registers.
 580 f:2:DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr:::deprecated_register_convertible_not::0
 581 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 582 # For raw <-> cooked register conversions, replaced by pseudo registers.
 583 f:2:DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL:void:deprecated_register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
 584 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
 585 # For raw <-> cooked register conversions, replaced by pseudo registers.
 586 f:2:DEPRECATED_REGISTER_CONVERT_TO_RAW:void:deprecated_register_convert_to_raw:struct type *type, int regnum, const char *from, char *to:type, regnum, from, to:::0::0
 587 #
 588 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
 589 f:1:REGISTER_TO_VALUE:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, void *buf:frame, regnum, type, buf::0:legacy_register_to_value::0
 590 f:1:VALUE_TO_REGISTER:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const void *buf:frame, regnum, type, buf::0:legacy_value_to_register::0
 591 #
 592 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 593 f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, void *buf, CORE_ADDR addr:type, buf, addr:::unsigned_address_to_pointer::0
 594 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 595 #
 596 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 597 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
 598 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 599 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
 600 #
 601 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
 602 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
 603 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 604 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 605 #
 606 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache
 607 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf
 608 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::generic_use_struct_convention::0
 609 #
 610 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
 611 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
 612 #
 613 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 614 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
 615 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 616 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
 617 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 618 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 619 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
 620 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
 621 #
 622 m::REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:regcache, gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
 623 #
 624 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 625 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 626 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
 627 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
 628 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 629 # note, per UNWIND_PC's doco, that while the two have similar
 630 # interfaces they have very different underlying implementations.
 631 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
 632 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
 633 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
 634 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
 635 # frame-base.  Enable frame-base before frame-unwind.
 636 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 637 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 638 # frame-base.  Enable frame-base before frame-unwind.
 639 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
 640 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 641 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
 642 #
 643 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp
 644 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 645 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
 646 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
 647 v:2:PARM_BOUNDARY:int:parm_boundary
 648 #
 649 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 650 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 651 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 652 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
 653 # On some machines there are bits in addresses which are not really
 654 # part of the address, but are used by the kernel, the hardware, etc.
 655 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 656 # we get a "real" address such as one would find in a symbol table.
 657 # This is used only for addresses of instructions, and even then I'm
 658 # not sure it's used in all contexts.  It exists to deal with there
 659 # being a few stray bits in the PC which would mislead us, not as some
 660 # sort of generic thing to handle alignment or segmentation (it's
 661 # possible it should be in TARGET_READ_PC instead).
 662 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 663 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 664 # ADDR_BITS_REMOVE.
 665 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 666 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 667 # the target needs software single step.  An ISA method to implement it.
 668 #
 669 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 670 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 671 #
 672 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 673 # single step.  If not, then implement single step using breakpoints.
 674 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
 675 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 676 # disassembler.  Perhaphs objdump can handle it?
 677 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
 678 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 679
 680
 681 # For SVR4 shared libraries, each call goes through a small piece of
 682 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 683 # to nonzero if we are currently stopped in one of these.
 684 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 685
 686 # Some systems also have trampoline code for returning from shared libs.
 687 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 688
 689 # Sigtramp is a routine that the kernel calls (which then calls the
 690 # signal handler).  On most machines it is a library routine that is
 691 # linked into the executable.
 692 #
 693 # This macro, given a program counter value and the name of the
 694 # function in which that PC resides (which can be null if the name is
 695 # not known), returns nonzero if the PC and name show that we are in
 696 # sigtramp.
 697 #
 698 # On most machines just see if the name is sigtramp (and if we have
 699 # no name, assume we are not in sigtramp).
 700 #
 701 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 702 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 703 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 704 # own local NAME lookup.
 705 #
 706 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 707 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 708 # does not.
 709 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 710 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 711 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 712 # A target might have problems with watchpoints as soon as the stack
 713 # frame of the current function has been destroyed.  This mostly happens
 714 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 715 # is defined to return a non-zero value if either the given addr is one
 716 # instruction after the stack destroying instruction up to the trailing
 717 # return instruction or if we can figure out that the stack frame has
 718 # already been invalidated regardless of the value of addr.  Targets
 719 # which don't suffer from that problem could just let this functionality
 720 # untouched.
 721 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 722 # Given a vector of command-line arguments, return a newly allocated
 723 # string which, when passed to the create_inferior function, will be
 724 # parsed (on Unix systems, by the shell) to yield the same vector.
 725 # This function should call error() if the argument vector is not
 726 # representable for this target or if this target does not support
 727 # command-line arguments.
 728 # ARGC is the number of elements in the vector.
 729 # ARGV is an array of strings, one per argument.
 730 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 731 f:2:ELF_MAKE_MSYMBOL_SPECIAL:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym:::default_elf_make_msymbol_special::0
 732 f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0
 733 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 734 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 735 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 736 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 737 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
 738 M:2:ADDRESS_CLASS_NAME_TO_TYPE_FLAGS:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
 739 # Is a register in a group
 740 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 741 # Fetch the pointer to the ith function argument.
 742 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
 743 EOF
 744 }
 745
 746 #
 747 # The .log file
 748 #
 749 exec > new-gdbarch.log
 750 function_list | while do_read
 751 do
 752     cat <<EOF
 753 ${class} ${macro}(${actual})
 754   ${returntype} ${function} ($formal)${attrib}
 755 EOF
 756     for r in ${read}
 757     do
 758         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 759     done
 760     if class_is_predicate_p && fallback_default_p
 761     then
 762         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 763         kill $$
 764         exit 1
 765     fi
 766     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 767     then
 768         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 769         kill $$
 770         exit 1
 771     fi
 772     if class_is_multiarch_p
 773     then
 774         if class_is_predicate_p ; then :
 775         elif test "x${predefault}" = "x"
 776         then
 777             echo "Error: pure multi-arch function must have a predefault" 1>&2
 778             kill $$
 779             exit 1
 780         fi
 781     fi
 782     echo ""
 783 done
 784
 785 exec 1>&2
 786 compare_new gdbarch.log
 787
 788
 789 copyright ()
 790 {
 791 cat <<EOF
 792 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 793
 794 /* Dynamic architecture support for GDB, the GNU debugger.
 795    Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 796
 797    This file is part of GDB.
 798
 799    This program is free software; you can redistribute it and/or modify
 800    it under the terms of the GNU General Public License as published by
 801    the Free Software Foundation; either version 2 of the License, or
 802    (at your option) any later version.
 803
 804    This program is distributed in the hope that it will be useful,
 805    but WITHOUT ANY WARRANTY; without even the implied warranty of
 806    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 807    GNU General Public License for more details.
 808
 809    You should have received a copy of the GNU General Public License
 810    along with this program; if not, write to the Free Software
 811    Foundation, Inc., 59 Temple Place - Suite 330,
 812    Boston, MA 02111-1307, USA.  */
 813
 814 /* This file was created with the aid of \`\`gdbarch.sh''.
 815
 816    The Bourne shell script \`\`gdbarch.sh'' creates the files
 817    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 818    against the existing \`\`gdbarch.[hc]''.  Any differences found
 819    being reported.
 820
 821    If editing this file, please also run gdbarch.sh and merge any
 822    changes into that script. Conversely, when making sweeping changes
 823    to this file, modifying gdbarch.sh and using its output may prove
 824    easier. */
 825
 826 EOF
 827 }
 828
 829 #
 830 # The .h file
 831 #
 832
 833 exec > new-gdbarch.h
 834 copyright
 835 cat <<EOF
 836 #ifndef GDBARCH_H
 837 #define GDBARCH_H
 838
 839 struct floatformat;
 840 struct ui_file;
 841 struct frame_info;
 842 struct value;
 843 struct objfile;
 844 struct minimal_symbol;
 845 struct regcache;
 846 struct reggroup;
 847 struct disassemble_info;
 848
 849 extern struct gdbarch *current_gdbarch;
 850
 851
 852 /* If any of the following are defined, the target wasn't correctly
 853    converted. */
 854
 855 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 856 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 857 #endif
 858 EOF
 859
 860 # function typedef's
 861 printf "\n"
 862 printf "\n"
 863 printf "/* The following are pre-initialized by GDBARCH. */\n"
 864 function_list | while do_read
 865 do
 866     if class_is_info_p
 867     then
 868         printf "\n"
 869         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 870         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 871         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 872         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 873         printf "#endif\n"
 874         printf "#if !defined (${macro})\n"
 875         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 876         printf "#endif\n"
 877     fi
 878 done
 879
 880 # function typedef's
 881 printf "\n"
 882 printf "\n"
 883 printf "/* The following are initialized by the target dependent code. */\n"
 884 function_list | while do_read
 885 do
 886     if [ -n "${comment}" ]
 887     then
 888         echo "${comment}" | sed \
 889             -e '2 s,#,/*,' \
 890             -e '3,$ s,#,  ,' \
 891             -e '$ s,$, */,'
 892     fi
 893     if class_is_multiarch_p
 894     then
 895         if class_is_predicate_p
 896         then
 897             printf "\n"
 898             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 899         fi
 900     else
 901         if class_is_predicate_p
 902         then
 903             printf "\n"
 904             printf "#if defined (${macro})\n"
 905             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 906             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 907             printf "#if !defined (${macro}_P)\n"
 908             printf "#define ${macro}_P() (1)\n"
 909             printf "#endif\n"
 910             printf "#endif\n"
 911             printf "\n"
 912             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 913             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 914             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 915             printf "#endif\n"
 916             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 917             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 918             printf "#endif\n"
 919         fi
 920     fi
 921     if class_is_variable_p
 922     then
 923         printf "\n"
 924         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 925         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 926         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 927         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 928         printf "#endif\n"
 929         printf "#if !defined (${macro})\n"
 930         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 931         printf "#endif\n"
 932     fi
 933     if class_is_function_p
 934     then
 935         printf "\n"
 936         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 937         then
 938             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 939         elif class_is_multiarch_p
 940         then
 941             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 942         else
 943             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 944         fi
 945         if [ "x${formal}" = "xvoid" ]
 946         then
 947           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 948         else
 949           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 950         fi
 951         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 952         if class_is_multiarch_p ; then :
 953         else
 954             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 955             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 956             printf "#endif\n"
 957             if [ "x${actual}" = "x" ]
 958             then
 959                 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
 960             elif [ "x${actual}" = "x-" ]
 961             then
 962                 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
 963             else
 964                 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
 965             fi
 966             printf "#if !defined (${macro})\n"
 967             if [ "x${actual}" = "x" ]
 968             then
 969                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 970             elif [ "x${actual}" = "x-" ]
 971             then
 972                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 973             else
 974                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
 975             fi
 976             printf "#endif\n"
 977         fi
 978     fi
 979 done
 980
 981 # close it off
 982 cat <<EOF
 983
 984 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 985
 986
 987 /* Mechanism for co-ordinating the selection of a specific
 988    architecture.
 989
 990    GDB targets (*-tdep.c) can register an interest in a specific
 991    architecture.  Other GDB components can register a need to maintain
 992    per-architecture data.
 993
 994    The mechanisms below ensures that there is only a loose connection
 995    between the set-architecture command and the various GDB
 996    components.  Each component can independently register their need
 997    to maintain architecture specific data with gdbarch.
 998
 999    Pragmatics:
1000
1001    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1002    didn't scale.
1003
1004    The more traditional mega-struct containing architecture specific
1005    data for all the various GDB components was also considered.  Since
1006    GDB is built from a variable number of (fairly independent)
1007    components it was determined that the global aproach was not
1008    applicable. */
1009
1010
1011 /* Register a new architectural family with GDB.
1012
1013    Register support for the specified ARCHITECTURE with GDB.  When
1014    gdbarch determines that the specified architecture has been
1015    selected, the corresponding INIT function is called.
1016
1017    --
1018
1019    The INIT function takes two parameters: INFO which contains the
1020    information available to gdbarch about the (possibly new)
1021    architecture; ARCHES which is a list of the previously created
1022    \`\`struct gdbarch'' for this architecture.
1023
1024    The INFO parameter is, as far as possible, be pre-initialized with
1025    information obtained from INFO.ABFD or the previously selected
1026    architecture.
1027
1028    The ARCHES parameter is a linked list (sorted most recently used)
1029    of all the previously created architures for this architecture
1030    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1031    values from the previously selected architecture for this
1032    architecture family.  The global \`\`current_gdbarch'' shall not be
1033    used.
1034
1035    The INIT function shall return any of: NULL - indicating that it
1036    doesn't recognize the selected architecture; an existing \`\`struct
1037    gdbarch'' from the ARCHES list - indicating that the new
1038    architecture is just a synonym for an earlier architecture (see
1039    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1040    - that describes the selected architecture (see gdbarch_alloc()).
1041
1042    The DUMP_TDEP function shall print out all target specific values.
1043    Care should be taken to ensure that the function works in both the
1044    multi-arch and non- multi-arch cases. */
1045
1046 struct gdbarch_list
1047 {
1048   struct gdbarch *gdbarch;
1049   struct gdbarch_list *next;
1050 };
1051
1052 struct gdbarch_info
1053 {
1054   /* Use default: NULL (ZERO). */
1055   const struct bfd_arch_info *bfd_arch_info;
1056
1057   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1058   int byte_order;
1059
1060   /* Use default: NULL (ZERO). */
1061   bfd *abfd;
1062
1063   /* Use default: NULL (ZERO). */
1064   struct gdbarch_tdep_info *tdep_info;
1065
1066   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1067   enum gdb_osabi osabi;
1068 };
1069
1070 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1071 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1072
1073 /* DEPRECATED - use gdbarch_register() */
1074 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1075
1076 extern void gdbarch_register (enum bfd_architecture architecture,
1077                               gdbarch_init_ftype *,
1078                               gdbarch_dump_tdep_ftype *);
1079
1080
1081 /* Return a freshly allocated, NULL terminated, array of the valid
1082    architecture names.  Since architectures are registered during the
1083    _initialize phase this function only returns useful information
1084    once initialization has been completed. */
1085
1086 extern const char **gdbarch_printable_names (void);
1087
1088
1089 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1090    matches the information provided by INFO. */
1091
1092 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1093
1094
1095 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1096    basic initialization using values obtained from the INFO andTDEP
1097    parameters.  set_gdbarch_*() functions are called to complete the
1098    initialization of the object. */
1099
1100 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1101
1102
1103 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1104    It is assumed that the caller freeds the \`\`struct
1105    gdbarch_tdep''. */
1106
1107 extern void gdbarch_free (struct gdbarch *);
1108
1109
1110 /* Helper function.  Allocate memory from the \`\`struct gdbarch''
1111    obstack.  The memory is freed when the corresponding architecture
1112    is also freed.  */
1113
1114 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1115 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1116 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1117
1118
1119 /* Helper function. Force an update of the current architecture.
1120
1121    The actual architecture selected is determined by INFO, \`\`(gdb) set
1122    architecture'' et.al., the existing architecture and BFD's default
1123    architecture.  INFO should be initialized to zero and then selected
1124    fields should be updated.
1125
1126    Returns non-zero if the update succeeds */
1127
1128 extern int gdbarch_update_p (struct gdbarch_info info);
1129
1130
1131
1132 /* Register per-architecture data-pointer.
1133
1134    Reserve space for a per-architecture data-pointer.  An identifier
1135    for the reserved data-pointer is returned.  That identifer should
1136    be saved in a local static variable.
1137
1138    The per-architecture data-pointer is either initialized explicitly
1139    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1140    gdbarch_data()).
1141
1142    Memory for the per-architecture data shall be allocated using
1143    gdbarch_obstack_zalloc.  That memory will be deleted when the
1144    corresponding architecture object is deleted.
1145
1146    When a previously created architecture is re-selected, the
1147    per-architecture data-pointer for that previous architecture is
1148    restored.  INIT() is not re-called.
1149
1150    Multiple registrarants for any architecture are allowed (and
1151    strongly encouraged).  */
1152
1153 struct gdbarch_data;
1154
1155 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1156 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1157 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1158                               struct gdbarch_data *data,
1159                               void *pointer);
1160
1161 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1162
1163
1164 /* Register per-architecture memory region.
1165
1166    Provide a memory-region swap mechanism.  Per-architecture memory
1167    region are created.  These memory regions are swapped whenever the
1168    architecture is changed.  For a new architecture, the memory region
1169    is initialized with zero (0) and the INIT function is called.
1170
1171    Memory regions are swapped / initialized in the order that they are
1172    registered.  NULL DATA and/or INIT values can be specified.
1173
1174    New code should use register_gdbarch_data(). */
1175
1176 typedef void (gdbarch_swap_ftype) (void);
1177 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1178 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1179
1180
1181
1182 /* The target-system-dependent byte order is dynamic */
1183
1184 extern int target_byte_order;
1185 #ifndef TARGET_BYTE_ORDER
1186 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1187 #endif
1188
1189 extern int target_byte_order_auto;
1190 #ifndef TARGET_BYTE_ORDER_AUTO
1191 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1192 #endif
1193
1194
1195
1196 /* The target-system-dependent BFD architecture is dynamic */
1197
1198 extern int target_architecture_auto;
1199 #ifndef TARGET_ARCHITECTURE_AUTO
1200 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1201 #endif
1202
1203 extern const struct bfd_arch_info *target_architecture;
1204 #ifndef TARGET_ARCHITECTURE
1205 #define TARGET_ARCHITECTURE (target_architecture + 0)
1206 #endif
1207
1208
1209 /* Set the dynamic target-system-dependent parameters (architecture,
1210    byte-order, ...) using information found in the BFD */
1211
1212 extern void set_gdbarch_from_file (bfd *);
1213
1214
1215 /* Initialize the current architecture to the "first" one we find on
1216    our list.  */
1217
1218 extern void initialize_current_architecture (void);
1219
1220 /* For non-multiarched targets, do any initialization of the default
1221    gdbarch object necessary after the _initialize_MODULE functions
1222    have run.  */
1223 extern void initialize_non_multiarch (void);
1224
1225 /* gdbarch trace variable */
1226 extern int gdbarch_debug;
1227
1228 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1229
1230 #endif
1231 EOF
1232 exec 1>&2
1233 #../move-if-change new-gdbarch.h gdbarch.h
1234 compare_new gdbarch.h
1235
1236
1237 #
1238 # C file
1239 #
1240
1241 exec > new-gdbarch.c
1242 copyright
1243 cat <<EOF
1244
1245 #include "defs.h"
1246 #include "arch-utils.h"
1247
1248 #include "gdbcmd.h"
1249 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1250 #include "symcat.h"
1251
1252 #include "floatformat.h"
1253
1254 #include "gdb_assert.h"
1255 #include "gdb_string.h"
1256 #include "gdb-events.h"
1257 #include "reggroups.h"
1258 #include "osabi.h"
1259 #include "symfile.h"            /* For entry_point_address.  */
1260 #include "gdb_obstack.h"
1261
1262 /* Static function declarations */
1263
1264 static void verify_gdbarch (struct gdbarch *gdbarch);
1265 static void alloc_gdbarch_data (struct gdbarch *);
1266 static void init_gdbarch_swap (struct gdbarch *);
1267 static void clear_gdbarch_swap (struct gdbarch *);
1268 static void swapout_gdbarch_swap (struct gdbarch *);
1269 static void swapin_gdbarch_swap (struct gdbarch *);
1270
1271 /* Non-zero if we want to trace architecture code.  */
1272
1273 #ifndef GDBARCH_DEBUG
1274 #define GDBARCH_DEBUG 0
1275 #endif
1276 int gdbarch_debug = GDBARCH_DEBUG;
1277
1278 EOF
1279
1280 # gdbarch open the gdbarch object
1281 printf "\n"
1282 printf "/* Maintain the struct gdbarch object */\n"
1283 printf "\n"
1284 printf "struct gdbarch\n"
1285 printf "{\n"
1286 printf "  /* Has this architecture been fully initialized?  */\n"
1287 printf "  int initialized_p;\n"
1288 printf "\n"
1289 printf "  /* An obstack bound to the lifetime of the architecture.  */\n"
1290 printf "  struct obstack *obstack;\n"
1291 printf "\n"
1292 printf "  /* basic architectural information */\n"
1293 function_list | while do_read
1294 do
1295     if class_is_info_p
1296     then
1297         printf "  ${returntype} ${function};\n"
1298     fi
1299 done
1300 printf "\n"
1301 printf "  /* target specific vector. */\n"
1302 printf "  struct gdbarch_tdep *tdep;\n"
1303 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1304 printf "\n"
1305 printf "  /* per-architecture data-pointers */\n"
1306 printf "  unsigned nr_data;\n"
1307 printf "  void **data;\n"
1308 printf "\n"
1309 printf "  /* per-architecture swap-regions */\n"
1310 printf "  struct gdbarch_swap *swap;\n"
1311 printf "\n"
1312 cat <<EOF
1313   /* Multi-arch values.
1314
1315      When extending this structure you must:
1316
1317      Add the field below.
1318
1319      Declare set/get functions and define the corresponding
1320      macro in gdbarch.h.
1321
1322      gdbarch_alloc(): If zero/NULL is not a suitable default,
1323      initialize the new field.
1324
1325      verify_gdbarch(): Confirm that the target updated the field
1326      correctly.
1327
1328      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1329      field is dumped out
1330
1331      \`\`startup_gdbarch()'': Append an initial value to the static
1332      variable (base values on the host's c-type system).
1333
1334      get_gdbarch(): Implement the set/get functions (probably using
1335      the macro's as shortcuts).
1336
1337      */
1338
1339 EOF
1340 function_list | while do_read
1341 do
1342     if class_is_variable_p
1343     then
1344         printf "  ${returntype} ${function};\n"
1345     elif class_is_function_p
1346     then
1347         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1348     fi
1349 done
1350 printf "};\n"
1351
1352 # A pre-initialized vector
1353 printf "\n"
1354 printf "\n"
1355 cat <<EOF
1356 /* The default architecture uses host values (for want of a better
1357    choice). */
1358 EOF
1359 printf "\n"
1360 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1361 printf "\n"
1362 printf "struct gdbarch startup_gdbarch =\n"
1363 printf "{\n"
1364 printf "  1, /* Always initialized.  */\n"
1365 printf "  NULL, /* The obstack.  */\n"
1366 printf "  /* basic architecture information */\n"
1367 function_list | while do_read
1368 do
1369     if class_is_info_p
1370     then
1371         printf "  ${staticdefault},  /* ${function} */\n"
1372     fi
1373 done
1374 cat <<EOF
1375   /* target specific vector and its dump routine */
1376   NULL, NULL,
1377   /*per-architecture data-pointers and swap regions */
1378   0, NULL, NULL,
1379   /* Multi-arch values */
1380 EOF
1381 function_list | while do_read
1382 do
1383     if class_is_function_p || class_is_variable_p
1384     then
1385         printf "  ${staticdefault},  /* ${function} */\n"
1386     fi
1387 done
1388 cat <<EOF
1389   /* startup_gdbarch() */
1390 };
1391
1392 struct gdbarch *current_gdbarch = &startup_gdbarch;
1393
1394 /* Do any initialization needed for a non-multiarch configuration
1395    after the _initialize_MODULE functions have been run.  */
1396 void
1397 initialize_non_multiarch (void)
1398 {
1399   alloc_gdbarch_data (&startup_gdbarch);
1400   /* Ensure that all swap areas are zeroed so that they again think
1401      they are starting from scratch.  */
1402   clear_gdbarch_swap (&startup_gdbarch);
1403   init_gdbarch_swap (&startup_gdbarch);
1404 }
1405 EOF
1406
1407 # Create a new gdbarch struct
1408 printf "\n"
1409 printf "\n"
1410 cat <<EOF
1411 /* Create a new \`\`struct gdbarch'' based on information provided by
1412    \`\`struct gdbarch_info''. */
1413 EOF
1414 printf "\n"
1415 cat <<EOF
1416 struct gdbarch *
1417 gdbarch_alloc (const struct gdbarch_info *info,
1418                struct gdbarch_tdep *tdep)
1419 {
1420   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1421      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1422      the current local architecture and not the previous global
1423      architecture.  This ensures that the new architectures initial
1424      values are not influenced by the previous architecture.  Once
1425      everything is parameterised with gdbarch, this will go away.  */
1426   struct gdbarch *current_gdbarch;
1427
1428   /* Create an obstack for allocating all the per-architecture memory,
1429      then use that to allocate the architecture vector.  */
1430   struct obstack *obstack = XMALLOC (struct obstack);
1431   obstack_init (obstack);
1432   current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1433   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1434   current_gdbarch->obstack = obstack;
1435
1436   alloc_gdbarch_data (current_gdbarch);
1437
1438   current_gdbarch->tdep = tdep;
1439 EOF
1440 printf "\n"
1441 function_list | while do_read
1442 do
1443     if class_is_info_p
1444     then
1445         printf "  current_gdbarch->${function} = info->${function};\n"
1446     fi
1447 done
1448 printf "\n"
1449 printf "  /* Force the explicit initialization of these. */\n"
1450 function_list | while do_read
1451 do
1452     if class_is_function_p || class_is_variable_p
1453     then
1454         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1455         then
1456           printf "  current_gdbarch->${function} = ${predefault};\n"
1457         fi
1458     fi
1459 done
1460 cat <<EOF
1461   /* gdbarch_alloc() */
1462
1463   return current_gdbarch;
1464 }
1465 EOF
1466
1467 # Free a gdbarch struct.
1468 printf "\n"
1469 printf "\n"
1470 cat <<EOF
1471 /* Allocate extra space using the per-architecture obstack.  */
1472
1473 void *
1474 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1475 {
1476   void *data = obstack_alloc (arch->obstack, size);
1477   memset (data, 0, size);
1478   return data;
1479 }
1480
1481
1482 /* Free a gdbarch struct.  This should never happen in normal
1483    operation --- once you've created a gdbarch, you keep it around.
1484    However, if an architecture's init function encounters an error
1485    building the structure, it may need to clean up a partially
1486    constructed gdbarch.  */
1487
1488 void
1489 gdbarch_free (struct gdbarch *arch)
1490 {
1491   struct obstack *obstack;
1492   gdb_assert (arch != NULL);
1493   gdb_assert (!arch->initialized_p);
1494   obstack = arch->obstack;
1495   obstack_free (obstack, 0); /* Includes the ARCH.  */
1496   xfree (obstack);
1497 }
1498 EOF
1499
1500 # verify a new architecture
1501 printf "\n"
1502 printf "\n"
1503 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1504 printf "\n"
1505 cat <<EOF
1506 static void
1507 verify_gdbarch (struct gdbarch *gdbarch)
1508 {
1509   struct ui_file *log;
1510   struct cleanup *cleanups;
1511   long dummy;
1512   char *buf;
1513   log = mem_fileopen ();
1514   cleanups = make_cleanup_ui_file_delete (log);
1515   /* fundamental */
1516   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1517     fprintf_unfiltered (log, "\n\tbyte-order");
1518   if (gdbarch->bfd_arch_info == NULL)
1519     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1520   /* Check those that need to be defined for the given multi-arch level. */
1521 EOF
1522 function_list | while do_read
1523 do
1524     if class_is_function_p || class_is_variable_p
1525     then
1526         if [ "x${invalid_p}" = "x0" ]
1527         then
1528             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1529         elif class_is_predicate_p
1530         then
1531             printf "  /* Skip verify of ${function}, has predicate */\n"
1532         # FIXME: See do_read for potential simplification
1533         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1534         then
1535             printf "  if (${invalid_p})\n"
1536             printf "    gdbarch->${function} = ${postdefault};\n"
1537         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1538         then
1539             printf "  if (gdbarch->${function} == ${predefault})\n"
1540             printf "    gdbarch->${function} = ${postdefault};\n"
1541         elif [ -n "${postdefault}" ]
1542         then
1543             printf "  if (gdbarch->${function} == 0)\n"
1544             printf "    gdbarch->${function} = ${postdefault};\n"
1545         elif [ -n "${invalid_p}" ]
1546         then
1547             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1548             printf "      && (${invalid_p}))\n"
1549             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1550         elif [ -n "${predefault}" ]
1551         then
1552             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1553             printf "      && (gdbarch->${function} == ${predefault}))\n"
1554             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1555         fi
1556     fi
1557 done
1558 cat <<EOF
1559   buf = ui_file_xstrdup (log, &dummy);
1560   make_cleanup (xfree, buf);
1561   if (strlen (buf) > 0)
1562     internal_error (__FILE__, __LINE__,
1563                     "verify_gdbarch: the following are invalid ...%s",
1564                     buf);
1565   do_cleanups (cleanups);
1566 }
1567 EOF
1568
1569 # dump the structure
1570 printf "\n"
1571 printf "\n"
1572 cat <<EOF
1573 /* Print out the details of the current architecture. */
1574
1575 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1576    just happens to match the global variable \`\`current_gdbarch''.  That
1577    way macros refering to that variable get the local and not the global
1578    version - ulgh.  Once everything is parameterised with gdbarch, this
1579    will go away. */
1580
1581 void
1582 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1583 {
1584   fprintf_unfiltered (file,
1585                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1586                       GDB_MULTI_ARCH);
1587 EOF
1588 function_list | sort -t: -k 3 | while do_read
1589 do
1590     # First the predicate
1591     if class_is_predicate_p
1592     then
1593         if class_is_multiarch_p
1594         then
1595             printf "  fprintf_unfiltered (file,\n"
1596             printf "                      \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1597             printf "                      gdbarch_${function}_p (current_gdbarch));\n"
1598         else
1599             printf "#ifdef ${macro}_P\n"
1600             printf "  fprintf_unfiltered (file,\n"
1601             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1602             printf "                      \"${macro}_P()\",\n"
1603             printf "                      XSTRING (${macro}_P ()));\n"
1604             printf "  fprintf_unfiltered (file,\n"
1605             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1606             printf "                      ${macro}_P ());\n"
1607             printf "#endif\n"
1608         fi
1609     fi
1610     # multiarch functions don't have macros.
1611     if class_is_multiarch_p
1612     then
1613         printf "  fprintf_unfiltered (file,\n"
1614         printf "                      \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1615         printf "                      (long) current_gdbarch->${function});\n"
1616         continue
1617     fi
1618     # Print the macro definition.
1619     printf "#ifdef ${macro}\n"
1620     if class_is_function_p
1621     then
1622         printf "  fprintf_unfiltered (file,\n"
1623         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1624         printf "                      \"${macro}(${actual})\",\n"
1625         printf "                      XSTRING (${macro} (${actual})));\n"
1626     else
1627         printf "  fprintf_unfiltered (file,\n"
1628         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1629         printf "                      XSTRING (${macro}));\n"
1630     fi
1631     if [ "x${print_p}" = "x()" ]
1632     then
1633         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1634     elif [ "x${print_p}" = "x0" ]
1635     then
1636         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1637     elif [ -n "${print_p}" ]
1638     then
1639         printf "  if (${print_p})\n"
1640         printf "    fprintf_unfiltered (file,\n"
1641         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1642         printf "                        ${print});\n"
1643     elif class_is_function_p
1644     then
1645         printf "  fprintf_unfiltered (file,\n"
1646         printf "                      \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1647         printf "                      (long) current_gdbarch->${function}\n"
1648         printf "                      /*${macro} ()*/);\n"
1649     else
1650         printf "  fprintf_unfiltered (file,\n"
1651         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1652         printf "                      ${print});\n"
1653     fi
1654     printf "#endif\n"
1655 done
1656 cat <<EOF
1657   if (current_gdbarch->dump_tdep != NULL)
1658     current_gdbarch->dump_tdep (current_gdbarch, file);
1659 }
1660 EOF
1661
1662
1663 # GET/SET
1664 printf "\n"
1665 cat <<EOF
1666 struct gdbarch_tdep *
1667 gdbarch_tdep (struct gdbarch *gdbarch)
1668 {
1669   if (gdbarch_debug >= 2)
1670     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1671   return gdbarch->tdep;
1672 }
1673 EOF
1674 printf "\n"
1675 function_list | while do_read
1676 do
1677     if class_is_predicate_p
1678     then
1679         printf "\n"
1680         printf "int\n"
1681         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1682         printf "{\n"
1683         printf "  gdb_assert (gdbarch != NULL);\n"
1684         printf "  return ${predicate};\n"
1685         printf "}\n"
1686     fi
1687     if class_is_function_p
1688     then
1689         printf "\n"
1690         printf "${returntype}\n"
1691         if [ "x${formal}" = "xvoid" ]
1692         then
1693           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1694         else
1695           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1696         fi
1697         printf "{\n"
1698         printf "  gdb_assert (gdbarch != NULL);\n"
1699         printf "  gdb_assert (gdbarch->${function} != NULL);\n"
1700         if class_is_predicate_p && test -n "${predefault}"
1701         then
1702             # Allow a call to a function with a predicate.
1703             printf "  /* Do not check predicate: ${predicate}, allow call.  */\n"
1704         fi
1705         printf "  if (gdbarch_debug >= 2)\n"
1706         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1707         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1708         then
1709             if class_is_multiarch_p
1710             then
1711                 params="gdbarch"
1712             else
1713                 params=""
1714             fi
1715         else
1716             if class_is_multiarch_p
1717             then
1718                 params="gdbarch, ${actual}"
1719             else
1720                 params="${actual}"
1721             fi
1722         fi
1723         if [ "x${returntype}" = "xvoid" ]
1724         then
1725           printf "  gdbarch->${function} (${params});\n"
1726         else
1727           printf "  return gdbarch->${function} (${params});\n"
1728         fi
1729         printf "}\n"
1730         printf "\n"
1731         printf "void\n"
1732         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1733         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1734         printf "{\n"
1735         printf "  gdbarch->${function} = ${function};\n"
1736         printf "}\n"
1737     elif class_is_variable_p
1738     then
1739         printf "\n"
1740         printf "${returntype}\n"
1741         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1742         printf "{\n"
1743         printf "  gdb_assert (gdbarch != NULL);\n"
1744         if [ "x${invalid_p}" = "x0" ]
1745         then
1746             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1747         elif [ -n "${invalid_p}" ]
1748         then
1749             printf "  /* Check variable is valid.  */\n"
1750             printf "  gdb_assert (!(${invalid_p}));\n"
1751         elif [ -n "${predefault}" ]
1752         then
1753             printf "  /* Check variable changed from pre-default.  */\n"
1754             printf "  gdb_assert (gdbarch->${function} != ${predefault});\n"
1755         fi
1756         printf "  if (gdbarch_debug >= 2)\n"
1757         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1758         printf "  return gdbarch->${function};\n"
1759         printf "}\n"
1760         printf "\n"
1761         printf "void\n"
1762         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1763         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1764         printf "{\n"
1765         printf "  gdbarch->${function} = ${function};\n"
1766         printf "}\n"
1767     elif class_is_info_p
1768     then
1769         printf "\n"
1770         printf "${returntype}\n"
1771         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1772         printf "{\n"
1773         printf "  gdb_assert (gdbarch != NULL);\n"
1774         printf "  if (gdbarch_debug >= 2)\n"
1775         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1776         printf "  return gdbarch->${function};\n"
1777         printf "}\n"
1778     fi
1779 done
1780
1781 # All the trailing guff
1782 cat <<EOF
1783
1784
1785 /* Keep a registry of per-architecture data-pointers required by GDB
1786    modules. */
1787
1788 struct gdbarch_data
1789 {
1790   unsigned index;
1791   int init_p;
1792   gdbarch_data_init_ftype *init;
1793 };
1794
1795 struct gdbarch_data_registration
1796 {
1797   struct gdbarch_data *data;
1798   struct gdbarch_data_registration *next;
1799 };
1800
1801 struct gdbarch_data_registry
1802 {
1803   unsigned nr;
1804   struct gdbarch_data_registration *registrations;
1805 };
1806
1807 struct gdbarch_data_registry gdbarch_data_registry =
1808 {
1809   0, NULL,
1810 };
1811
1812 struct gdbarch_data *
1813 register_gdbarch_data (gdbarch_data_init_ftype *init)
1814 {
1815   struct gdbarch_data_registration **curr;
1816   /* Append the new registraration.  */
1817   for (curr = &gdbarch_data_registry.registrations;
1818        (*curr) != NULL;
1819        curr = &(*curr)->next);
1820   (*curr) = XMALLOC (struct gdbarch_data_registration);
1821   (*curr)->next = NULL;
1822   (*curr)->data = XMALLOC (struct gdbarch_data);
1823   (*curr)->data->index = gdbarch_data_registry.nr++;
1824   (*curr)->data->init = init;
1825   (*curr)->data->init_p = 1;
1826   return (*curr)->data;
1827 }
1828
1829
1830 /* Create/delete the gdbarch data vector. */
1831
1832 static void
1833 alloc_gdbarch_data (struct gdbarch *gdbarch)
1834 {
1835   gdb_assert (gdbarch->data == NULL);
1836   gdbarch->nr_data = gdbarch_data_registry.nr;
1837   gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1838 }
1839
1840 /* Initialize the current value of the specified per-architecture
1841    data-pointer. */
1842
1843 void
1844 set_gdbarch_data (struct gdbarch *gdbarch,
1845                   struct gdbarch_data *data,
1846                   void *pointer)
1847 {
1848   gdb_assert (data->index < gdbarch->nr_data);
1849   gdb_assert (gdbarch->data[data->index] == NULL);
1850   gdbarch->data[data->index] = pointer;
1851 }
1852
1853 /* Return the current value of the specified per-architecture
1854    data-pointer. */
1855
1856 void *
1857 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1858 {
1859   gdb_assert (data->index < gdbarch->nr_data);
1860   /* The data-pointer isn't initialized, call init() to get a value but
1861      only if the architecture initializaiton has completed.  Otherwise
1862      punt - hope that the caller knows what they are doing.  */
1863   if (gdbarch->data[data->index] == NULL
1864       && gdbarch->initialized_p)
1865     {
1866       /* Be careful to detect an initialization cycle.  */
1867       gdb_assert (data->init_p);
1868       data->init_p = 0;
1869       gdb_assert (data->init != NULL);
1870       gdbarch->data[data->index] = data->init (gdbarch);
1871       data->init_p = 1;
1872       gdb_assert (gdbarch->data[data->index] != NULL);
1873     }
1874   return gdbarch->data[data->index];
1875 }
1876
1877
1878
1879 /* Keep a registry of swapped data required by GDB modules. */
1880
1881 struct gdbarch_swap
1882 {
1883   void *swap;
1884   struct gdbarch_swap_registration *source;
1885   struct gdbarch_swap *next;
1886 };
1887
1888 struct gdbarch_swap_registration
1889 {
1890   void *data;
1891   unsigned long sizeof_data;
1892   gdbarch_swap_ftype *init;
1893   struct gdbarch_swap_registration *next;
1894 };
1895
1896 struct gdbarch_swap_registry
1897 {
1898   int nr;
1899   struct gdbarch_swap_registration *registrations;
1900 };
1901
1902 struct gdbarch_swap_registry gdbarch_swap_registry =
1903 {
1904   0, NULL,
1905 };
1906
1907 void
1908 register_gdbarch_swap (void *data,
1909                        unsigned long sizeof_data,
1910                        gdbarch_swap_ftype *init)
1911 {
1912   struct gdbarch_swap_registration **rego;
1913   for (rego = &gdbarch_swap_registry.registrations;
1914        (*rego) != NULL;
1915        rego = &(*rego)->next);
1916   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1917   (*rego)->next = NULL;
1918   (*rego)->init = init;
1919   (*rego)->data = data;
1920   (*rego)->sizeof_data = sizeof_data;
1921 }
1922
1923 static void
1924 clear_gdbarch_swap (struct gdbarch *gdbarch)
1925 {
1926   struct gdbarch_swap *curr;
1927   for (curr = gdbarch->swap;
1928        curr != NULL;
1929        curr = curr->next)
1930     {
1931       memset (curr->source->data, 0, curr->source->sizeof_data);
1932     }
1933 }
1934
1935 static void
1936 init_gdbarch_swap (struct gdbarch *gdbarch)
1937 {
1938   struct gdbarch_swap_registration *rego;
1939   struct gdbarch_swap **curr = &gdbarch->swap;
1940   for (rego = gdbarch_swap_registry.registrations;
1941        rego != NULL;
1942        rego = rego->next)
1943     {
1944       if (rego->data != NULL)
1945         {
1946           (*curr) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct gdbarch_swap);
1947           (*curr)->source = rego;
1948           (*curr)->swap = gdbarch_obstack_zalloc (gdbarch, rego->sizeof_data);
1949           (*curr)->next = NULL;
1950           curr = &(*curr)->next;
1951         }
1952       if (rego->init != NULL)
1953         rego->init ();
1954     }
1955 }
1956
1957 static void
1958 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1959 {
1960   struct gdbarch_swap *curr;
1961   for (curr = gdbarch->swap;
1962        curr != NULL;
1963        curr = curr->next)
1964     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1965 }
1966
1967 static void
1968 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1969 {
1970   struct gdbarch_swap *curr;
1971   for (curr = gdbarch->swap;
1972        curr != NULL;
1973        curr = curr->next)
1974     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1975 }
1976
1977
1978 /* Keep a registry of the architectures known by GDB. */
1979
1980 struct gdbarch_registration
1981 {
1982   enum bfd_architecture bfd_architecture;
1983   gdbarch_init_ftype *init;
1984   gdbarch_dump_tdep_ftype *dump_tdep;
1985   struct gdbarch_list *arches;
1986   struct gdbarch_registration *next;
1987 };
1988
1989 static struct gdbarch_registration *gdbarch_registry = NULL;
1990
1991 static void
1992 append_name (const char ***buf, int *nr, const char *name)
1993 {
1994   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1995   (*buf)[*nr] = name;
1996   *nr += 1;
1997 }
1998
1999 const char **
2000 gdbarch_printable_names (void)
2001 {
2002   /* Accumulate a list of names based on the registed list of
2003      architectures. */
2004   enum bfd_architecture a;
2005   int nr_arches = 0;
2006   const char **arches = NULL;
2007   struct gdbarch_registration *rego;
2008   for (rego = gdbarch_registry;
2009        rego != NULL;
2010        rego = rego->next)
2011     {
2012       const struct bfd_arch_info *ap;
2013       ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2014       if (ap == NULL)
2015         internal_error (__FILE__, __LINE__,
2016                         "gdbarch_architecture_names: multi-arch unknown");
2017       do
2018         {
2019           append_name (&arches, &nr_arches, ap->printable_name);
2020           ap = ap->next;
2021         }
2022       while (ap != NULL);
2023     }
2024   append_name (&arches, &nr_arches, NULL);
2025   return arches;
2026 }
2027
2028
2029 void
2030 gdbarch_register (enum bfd_architecture bfd_architecture,
2031                   gdbarch_init_ftype *init,
2032                   gdbarch_dump_tdep_ftype *dump_tdep)
2033 {
2034   struct gdbarch_registration **curr;
2035   const struct bfd_arch_info *bfd_arch_info;
2036   /* Check that BFD recognizes this architecture */
2037   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2038   if (bfd_arch_info == NULL)
2039     {
2040       internal_error (__FILE__, __LINE__,
2041                       "gdbarch: Attempt to register unknown architecture (%d)",
2042                       bfd_architecture);
2043     }
2044   /* Check that we haven't seen this architecture before */
2045   for (curr = &gdbarch_registry;
2046        (*curr) != NULL;
2047        curr = &(*curr)->next)
2048     {
2049       if (bfd_architecture == (*curr)->bfd_architecture)
2050         internal_error (__FILE__, __LINE__,
2051                         "gdbarch: Duplicate registraration of architecture (%s)",
2052                         bfd_arch_info->printable_name);
2053     }
2054   /* log it */
2055   if (gdbarch_debug)
2056     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2057                         bfd_arch_info->printable_name,
2058                         (long) init);
2059   /* Append it */
2060   (*curr) = XMALLOC (struct gdbarch_registration);
2061   (*curr)->bfd_architecture = bfd_architecture;
2062   (*curr)->init = init;
2063   (*curr)->dump_tdep = dump_tdep;
2064   (*curr)->arches = NULL;
2065   (*curr)->next = NULL;
2066 }
2067
2068 void
2069 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2070                        gdbarch_init_ftype *init)
2071 {
2072   gdbarch_register (bfd_architecture, init, NULL);
2073 }
2074
2075
2076 /* Look for an architecture using gdbarch_info.  Base search on only
2077    BFD_ARCH_INFO and BYTE_ORDER. */
2078
2079 struct gdbarch_list *
2080 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2081                              const struct gdbarch_info *info)
2082 {
2083   for (; arches != NULL; arches = arches->next)
2084     {
2085       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2086         continue;
2087       if (info->byte_order != arches->gdbarch->byte_order)
2088         continue;
2089       if (info->osabi != arches->gdbarch->osabi)
2090         continue;
2091       return arches;
2092     }
2093   return NULL;
2094 }
2095
2096
2097 /* Update the current architecture. Return ZERO if the update request
2098    failed. */
2099
2100 int
2101 gdbarch_update_p (struct gdbarch_info info)
2102 {
2103   struct gdbarch *new_gdbarch;
2104   struct gdbarch *old_gdbarch;
2105   struct gdbarch_registration *rego;
2106
2107   /* Fill in missing parts of the INFO struct using a number of
2108      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
2109
2110   /* \`\`(gdb) set architecture ...'' */
2111   if (info.bfd_arch_info == NULL
2112       && !TARGET_ARCHITECTURE_AUTO)
2113     info.bfd_arch_info = TARGET_ARCHITECTURE;
2114   if (info.bfd_arch_info == NULL
2115       && info.abfd != NULL
2116       && bfd_get_arch (info.abfd) != bfd_arch_unknown
2117       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2118     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2119   if (info.bfd_arch_info == NULL)
2120     info.bfd_arch_info = TARGET_ARCHITECTURE;
2121
2122   /* \`\`(gdb) set byte-order ...'' */
2123   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2124       && !TARGET_BYTE_ORDER_AUTO)
2125     info.byte_order = TARGET_BYTE_ORDER;
2126   /* From the INFO struct. */
2127   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2128       && info.abfd != NULL)
2129     info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2130                        : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2131                        : BFD_ENDIAN_UNKNOWN);
2132   /* From the current target. */
2133   if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2134     info.byte_order = TARGET_BYTE_ORDER;
2135
2136   /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi.  */
2137   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2138     info.osabi = gdbarch_lookup_osabi (info.abfd);
2139   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2140     info.osabi = current_gdbarch->osabi;
2141
2142   /* Must have found some sort of architecture. */
2143   gdb_assert (info.bfd_arch_info != NULL);
2144
2145   if (gdbarch_debug)
2146     {
2147       fprintf_unfiltered (gdb_stdlog,
2148                           "gdbarch_update: info.bfd_arch_info %s\n",
2149                           (info.bfd_arch_info != NULL
2150                            ? info.bfd_arch_info->printable_name
2151                            : "(null)"));
2152       fprintf_unfiltered (gdb_stdlog,
2153                           "gdbarch_update: info.byte_order %d (%s)\n",
2154                           info.byte_order,
2155                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2156                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2157                            : "default"));
2158       fprintf_unfiltered (gdb_stdlog,
2159                           "gdbarch_update: info.osabi %d (%s)\n",
2160                           info.osabi, gdbarch_osabi_name (info.osabi));
2161       fprintf_unfiltered (gdb_stdlog,
2162                           "gdbarch_update: info.abfd 0x%lx\n",
2163                           (long) info.abfd);
2164       fprintf_unfiltered (gdb_stdlog,
2165                           "gdbarch_update: info.tdep_info 0x%lx\n",
2166                           (long) info.tdep_info);
2167     }
2168
2169   /* Find the target that knows about this architecture. */
2170   for (rego = gdbarch_registry;
2171        rego != NULL;
2172        rego = rego->next)
2173     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2174       break;
2175   if (rego == NULL)
2176     {
2177       if (gdbarch_debug)
2178         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2179       return 0;
2180     }
2181
2182   /* Swap the data belonging to the old target out setting the
2183      installed data to zero.  This stops the ->init() function trying
2184      to refer to the previous architecture's global data structures.  */
2185   swapout_gdbarch_swap (current_gdbarch);
2186   clear_gdbarch_swap (current_gdbarch);
2187
2188   /* Save the previously selected architecture, setting the global to
2189      NULL.  This stops ->init() trying to use the previous
2190      architecture's configuration.  The previous architecture may not
2191      even be of the same architecture family.  The most recent
2192      architecture of the same family is found at the head of the
2193      rego->arches list.  */
2194   old_gdbarch = current_gdbarch;
2195   current_gdbarch = NULL;
2196
2197   /* Ask the target for a replacement architecture. */
2198   new_gdbarch = rego->init (info, rego->arches);
2199
2200   /* Did the target like it?  No. Reject the change and revert to the
2201      old architecture.  */
2202   if (new_gdbarch == NULL)
2203     {
2204       if (gdbarch_debug)
2205         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2206       swapin_gdbarch_swap (old_gdbarch);
2207       current_gdbarch = old_gdbarch;
2208       return 0;
2209     }
2210
2211   /* Did the architecture change?  No.  Oops, put the old architecture
2212      back.  */
2213   if (old_gdbarch == new_gdbarch)
2214     {
2215       if (gdbarch_debug)
2216         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2217                             (long) new_gdbarch,
2218                             new_gdbarch->bfd_arch_info->printable_name);
2219       swapin_gdbarch_swap (old_gdbarch);
2220       current_gdbarch = old_gdbarch;
2221       return 1;
2222     }
2223
2224   /* Is this a pre-existing architecture?  Yes. Move it to the front
2225      of the list of architectures (keeping the list sorted Most
2226      Recently Used) and then copy it in.  */
2227   {
2228     struct gdbarch_list **list;
2229     for (list = &rego->arches;
2230          (*list) != NULL;
2231          list = &(*list)->next)
2232       {
2233         if ((*list)->gdbarch == new_gdbarch)
2234           {
2235             struct gdbarch_list *this;
2236             if (gdbarch_debug)
2237               fprintf_unfiltered (gdb_stdlog,
2238                                   "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2239                                   (long) new_gdbarch,
2240                                   new_gdbarch->bfd_arch_info->printable_name);
2241             /* Unlink this.  */
2242             this = (*list);
2243             (*list) = this->next;
2244             /* Insert in the front.  */
2245             this->next = rego->arches;
2246             rego->arches = this;
2247             /* Copy the new architecture in.  */
2248             current_gdbarch = new_gdbarch;
2249             swapin_gdbarch_swap (new_gdbarch);
2250             architecture_changed_event ();
2251             return 1;
2252           }
2253       }
2254   }
2255
2256   /* Prepend this new architecture to the architecture list (keep the
2257      list sorted Most Recently Used).  */
2258   {
2259     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2260     this->next = rego->arches;
2261     this->gdbarch = new_gdbarch;
2262     rego->arches = this;
2263   }
2264
2265   /* Switch to this new architecture marking it initialized.  */
2266   current_gdbarch = new_gdbarch;
2267   current_gdbarch->initialized_p = 1;
2268   if (gdbarch_debug)
2269     {
2270       fprintf_unfiltered (gdb_stdlog,
2271                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2272                           (long) new_gdbarch,
2273                           new_gdbarch->bfd_arch_info->printable_name);
2274     }
2275
2276   /* Check that the newly installed architecture is valid.  Plug in
2277      any post init values.  */
2278   new_gdbarch->dump_tdep = rego->dump_tdep;
2279   verify_gdbarch (new_gdbarch);
2280
2281   /* Initialize the per-architecture memory (swap) areas.
2282      CURRENT_GDBARCH must be update before these modules are
2283      called. */
2284   init_gdbarch_swap (new_gdbarch);
2285
2286   /* Initialize the per-architecture data.  CURRENT_GDBARCH
2287      must be updated before these modules are called. */
2288   architecture_changed_event ();
2289
2290   if (gdbarch_debug)
2291     gdbarch_dump (current_gdbarch, gdb_stdlog);
2292
2293   return 1;
2294 }
2295
2296
2297 extern void _initialize_gdbarch (void);
2298
2299 void
2300 _initialize_gdbarch (void)
2301 {
2302   struct cmd_list_element *c;
2303
2304   add_show_from_set (add_set_cmd ("arch",
2305                                   class_maintenance,
2306                                   var_zinteger,
2307                                   (char *)&gdbarch_debug,
2308                                   "Set architecture debugging.\\n\\
2309 When non-zero, architecture debugging is enabled.", &setdebuglist),
2310                      &showdebuglist);
2311   c = add_set_cmd ("archdebug",
2312                    class_maintenance,
2313                    var_zinteger,
2314                    (char *)&gdbarch_debug,
2315                    "Set architecture debugging.\\n\\
2316 When non-zero, architecture debugging is enabled.", &setlist);
2317
2318   deprecate_cmd (c, "set debug arch");
2319   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2320 }
2321 EOF
2322
2323 # close things off
2324 exec 1>&2
2325 #../move-if-change new-gdbarch.c gdbarch.c
2326 compare_new gdbarch.c