gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   5 #
   6 # This file is part of GDB.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 2 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  21
  22 # Make certain that the script is running in an internationalized
  23 # environment.
  24 LANG=c ; export LANG
  25 LC_ALL=c ; export LC_ALL
  26
  27
  28 compare_new ()
  29 {
  30     file=$1
  31     if test ! -r ${file}
  32     then
  33         echo "${file} missing? cp new-${file} ${file}" 1>&2
  34     elif diff -u ${file} new-${file}
  35     then
  36         echo "${file} unchanged" 1>&2
  37     else
  38         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  39     fi
  40 }
  41
  42
  43 # Format of the input table
  44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  45
  46 do_read ()
  47 {
  48     comment=""
  49     class=""
  50     while read line
  51     do
  52         if test "${line}" = ""
  53         then
  54             continue
  55         elif test "${line}" = "#" -a "${comment}" = ""
  56         then
  57             continue
  58         elif expr "${line}" : "#" > /dev/null
  59         then
  60             comment="${comment}
  61 ${line}"
  62         else
  63
  64             # The semantics of IFS varies between different SH's.  Some
  65             # treat ``::' as three fields while some treat it as just too.
  66             # Work around this by eliminating ``::'' ....
  67             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  68
  69             OFS="${IFS}" ; IFS="[:]"
  70             eval read ${read} <<EOF
  71 ${line}
  72 EOF
  73             IFS="${OFS}"
  74
  75             # .... and then going back through each field and strip out those
  76             # that ended up with just that space character.
  77             for r in ${read}
  78             do
  79                 if eval test \"\${${r}}\" = \"\ \"
  80                 then
  81                     eval ${r}=""
  82                 fi
  83             done
  84
  85             case "${level}" in
  86                 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
  87                 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  88                 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
  89                 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
  90             esac
  91
  92             case "${class}" in
  93                 m ) staticdefault="${predefault}" ;;
  94                 M ) staticdefault="0" ;;
  95                 * ) test "${staticdefault}" || staticdefault=0 ;;
  96             esac
  97             # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
  98             # multi-arch defaults.
  99             # test "${predefault}" || predefault=0
 100
 101             # come up with a format, use a few guesses for variables
 102             case ":${class}:${fmt}:${print}:" in
 103                 :[vV]::: )
 104                     if [ "${returntype}" = int ]
 105                     then
 106                         fmt="%d"
 107                         print="${macro}"
 108                     elif [ "${returntype}" = long ]
 109                     then
 110                         fmt="%ld"
 111                         print="${macro}"
 112                     fi
 113                     ;;
 114             esac
 115             test "${fmt}" || fmt="%ld"
 116             test "${print}" || print="(long) ${macro}"
 117
 118             case "${class}" in
 119             F | V | M )
 120                 case "${invalid_p}" in
 121                 "" )
 122                     if test -n "${predefault}" -a "${predefault}" != "0"
 123                     then
 124                         #invalid_p="gdbarch->${function} == ${predefault}"
 125                         predicate="gdbarch->${function} != ${predefault}"
 126                     else
 127                         # filled in later
 128                         predicate=""
 129                     fi
 130                     ;;
 131                 * )
 132                     echo "Predicate function ${function} with invalid_p." 1>&2
 133                     kill $$
 134                     exit 1
 135                     ;;
 136                 esac
 137             esac
 138
 139             # PREDEFAULT is a valid fallback definition of MEMBER when
 140             # multi-arch is not enabled.  This ensures that the
 141             # default value, when multi-arch is the same as the
 142             # default value when not multi-arch.  POSTDEFAULT is
 143             # always a valid definition of MEMBER as this again
 144             # ensures consistency.
 145
 146             if [ -n "${postdefault}" ]
 147             then
 148                 fallbackdefault="${postdefault}"
 149             elif [ -n "${predefault}" ]
 150             then
 151                 fallbackdefault="${predefault}"
 152             else
 153                 fallbackdefault="0"
 154             fi
 155
 156             #NOT YET: See gdbarch.log for basic verification of
 157             # database
 158
 159             break
 160         fi
 161     done
 162     if [ -n "${class}" ]
 163     then
 164         true
 165     else
 166         false
 167     fi
 168 }
 169
 170
 171 fallback_default_p ()
 172 {
 173     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 174         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 175 }
 176
 177 class_is_variable_p ()
 178 {
 179     case "${class}" in
 180         *v* | *V* ) true ;;
 181         * ) false ;;
 182     esac
 183 }
 184
 185 class_is_function_p ()
 186 {
 187     case "${class}" in
 188         *f* | *F* | *m* | *M* ) true ;;
 189         * ) false ;;
 190     esac
 191 }
 192
 193 class_is_multiarch_p ()
 194 {
 195     case "${class}" in
 196         *m* | *M* ) true ;;
 197         * ) false ;;
 198     esac
 199 }
 200
 201 class_is_predicate_p ()
 202 {
 203     case "${class}" in
 204         *F* | *V* | *M* ) true ;;
 205         * ) false ;;
 206     esac
 207 }
 208
 209 class_is_info_p ()
 210 {
 211     case "${class}" in
 212         *i* ) true ;;
 213         * ) false ;;
 214     esac
 215 }
 216
 217
 218 # dump out/verify the doco
 219 for field in ${read}
 220 do
 221   case ${field} in
 222
 223     class ) : ;;
 224
 225         # # -> line disable
 226         # f -> function
 227         #   hiding a function
 228         # F -> function + predicate
 229         #   hiding a function + predicate to test function validity
 230         # v -> variable
 231         #   hiding a variable
 232         # V -> variable + predicate
 233         #   hiding a variable + predicate to test variables validity
 234         # i -> set from info
 235         #   hiding something from the ``struct info'' object
 236         # m -> multi-arch function
 237         #   hiding a multi-arch function (parameterised with the architecture)
 238         # M -> multi-arch function + predicate
 239         #   hiding a multi-arch function + predicate to test function validity
 240
 241     level ) : ;;
 242
 243         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 244         # LEVEL is a predicate on checking that a given method is
 245         # initialized (using INVALID_P).
 246
 247     macro ) : ;;
 248
 249         # The name of the MACRO that this method is to be accessed by.
 250
 251     returntype ) : ;;
 252
 253         # For functions, the return type; for variables, the data type
 254
 255     function ) : ;;
 256
 257         # For functions, the member function name; for variables, the
 258         # variable name.  Member function names are always prefixed with
 259         # ``gdbarch_'' for name-space purity.
 260
 261     formal ) : ;;
 262
 263         # The formal argument list.  It is assumed that the formal
 264         # argument list includes the actual name of each list element.
 265         # A function with no arguments shall have ``void'' as the
 266         # formal argument list.
 267
 268     actual ) : ;;
 269
 270         # The list of actual arguments.  The arguments specified shall
 271         # match the FORMAL list given above.  Functions with out
 272         # arguments leave this blank.
 273
 274     attrib ) : ;;
 275
 276         # Any GCC attributes that should be attached to the function
 277         # declaration.  At present this field is unused.
 278
 279     staticdefault ) : ;;
 280
 281         # To help with the GDB startup a static gdbarch object is
 282         # created.  STATICDEFAULT is the value to insert into that
 283         # static gdbarch object.  Since this a static object only
 284         # simple expressions can be used.
 285
 286         # If STATICDEFAULT is empty, zero is used.
 287
 288     predefault ) : ;;
 289
 290         # An initial value to assign to MEMBER of the freshly
 291         # malloc()ed gdbarch object.  After initialization, the
 292         # freshly malloc()ed object is passed to the target
 293         # architecture code for further updates.
 294
 295         # If PREDEFAULT is empty, zero is used.
 296
 297         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 298         # INVALID_P are specified, PREDEFAULT will be used as the
 299         # default for the non- multi-arch target.
 300
 301         # A zero PREDEFAULT function will force the fallback to call
 302         # internal_error().
 303
 304         # Variable declarations can refer to ``gdbarch'' which will
 305         # contain the current architecture.  Care should be taken.
 306
 307     postdefault ) : ;;
 308
 309         # A value to assign to MEMBER of the new gdbarch object should
 310         # the target architecture code fail to change the PREDEFAULT
 311         # value.
 312
 313         # If POSTDEFAULT is empty, no post update is performed.
 314
 315         # If both INVALID_P and POSTDEFAULT are non-empty then
 316         # INVALID_P will be used to determine if MEMBER should be
 317         # changed to POSTDEFAULT.
 318
 319         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 320         # specified, POSTDEFAULT will be used as the default for the
 321         # non- multi-arch target (regardless of the value of
 322         # PREDEFAULT).
 323
 324         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 325
 326         # Variable declarations can refer to ``gdbarch'' which will
 327         # contain the current architecture.  Care should be taken.
 328
 329     invalid_p ) : ;;
 330
 331         # A predicate equation that validates MEMBER.  Non-zero is
 332         # returned if the code creating the new architecture failed to
 333         # initialize MEMBER or the initialized the member is invalid.
 334         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 335         # that value.  If POSTDEFAULT is empty then internal_error()
 336         # is called.
 337
 338         # If INVALID_P is empty, a check that MEMBER is no longer
 339         # equal to PREDEFAULT is used.
 340
 341         # The expression ``0'' disables the INVALID_P check making
 342         # PREDEFAULT a legitimate value.
 343
 344         # See also PREDEFAULT and POSTDEFAULT.
 345
 346     fmt ) : ;;
 347
 348         # printf style format string that can be used to print out the
 349         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 350         # ignored and the function address is printed.
 351
 352         # If FMT is empty, ``%ld'' is used.
 353
 354     print ) : ;;
 355
 356         # An optional equation that casts MEMBER to a value suitable
 357         # for formatting by FMT.
 358
 359         # If PRINT is empty, ``(long)'' is used.
 360
 361     print_p ) : ;;
 362
 363         # An optional indicator for any predicte to wrap around the
 364         # print member code.
 365
 366         #   () -> Call a custom function to do the dump.
 367         #   exp -> Wrap print up in ``if (${print_p}) ...
 368         #   ``'' -> No predicate
 369
 370         # If PRINT_P is empty, ``1'' is always used.
 371
 372     description ) : ;;
 373
 374         # Currently unused.
 375
 376     *)
 377         echo "Bad field ${field}"
 378         exit 1;;
 379   esac
 380 done
 381
 382
 383 function_list ()
 384 {
 385   # See below (DOCO) for description of each field
 386   cat <<EOF
 387 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 388 #
 389 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
 390 #
 391 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
 392 # Number of bits in a char or unsigned char for the target machine.
 393 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 394 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 395 #
 396 # Number of bits in a short or unsigned short for the target machine.
 397 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 398 # Number of bits in an int or unsigned int for the target machine.
 399 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 400 # Number of bits in a long or unsigned long for the target machine.
 401 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 402 # Number of bits in a long long or unsigned long long for the target
 403 # machine.
 404 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 405 # Number of bits in a float for the target machine.
 406 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 407 # Number of bits in a double for the target machine.
 408 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 409 # Number of bits in a long double for the target machine.
 410 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
 411 # For most targets, a pointer on the target and its representation as an
 412 # address in GDB have the same size and "look the same".  For such a
 413 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 414 # / addr_bit will be set from it.
 415 #
 416 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 417 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 418 #
 419 # ptr_bit is the size of a pointer on the target
 420 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 421 # addr_bit is the size of a target address as represented in gdb
 422 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 423 # Number of bits in a BFD_VMA for the target object file format.
 424 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 425 #
 426 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
 427 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
 428 #
 429 f:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
 430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 431 # This is simply not needed.  See value_of_builtin_frame_fp_reg and
 432 # call_function_by_hand.
 433 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
 434 f:2:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
 435 # The dummy call frame SP should be set by push_dummy_call.
 436 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
 437 # Function for getting target's idea of a frame pointer.  FIXME: GDB's
 438 # whole scheme for dealing with "frames" and "frame pointers" needs a
 439 # serious shakedown.
 440 f:2:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0
 441 #
 442 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf:
 443 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf:
 444 #
 445 v:2:NUM_REGS:int:num_regs::::0:-1
 446 # This macro gives the number of pseudo-registers that live in the
 447 # register namespace but do not get fetched or stored on the target.
 448 # These pseudo-registers may be aliases for other registers,
 449 # combinations of other registers, or they may be computed by GDB.
 450 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 451
 452 # GDB's standard (or well known) register numbers.  These can map onto
 453 # a real register or a pseudo (computed) register or not be defined at
 454 # all (-1).
 455 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
 456 # This is simply not needed.  See value_of_builtin_frame_fp_reg and
 457 # call_function_by_hand.
 458 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
 459 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
 460 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
 461 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 462 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
 463 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 464 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 465 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 466 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 467 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 468 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 469 # Convert from an sdb register number to an internal gdb register number.
 470 # This should be defined in tm.h, if REGISTER_NAMES is not set up
 471 # to map one to one onto the sdb register numbers.
 472 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 473 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 474 f:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
 475 v::REGISTER_SIZE:int:register_size
 476 v::REGISTER_BYTES:int:register_bytes
 477 # NOTE: cagney/2002-05-02: This function with predicate has a valid
 478 # (callable) initial value.  As a consequence, even when the predicate
 479 # is false, the corresponding function works.  This simplifies the
 480 # migration process - old code, calling REGISTER_BYTE, doesn't need to
 481 # be modified.
 482 F::REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
 483 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 484 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 485 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
 486 # by REGISTER_TYPE.
 487 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
 488 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 489 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 490 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
 491 # by REGISTER_TYPE.
 492 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
 493 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 494 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 495 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
 496 # by REGISTER_TYPE.
 497 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
 498 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 499 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 500 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
 501 # by REGISTER_TYPE.
 502 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
 503 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
 504 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
 505 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE have all being replaced
 506 # by REGISTER_TYPE.
 507 F:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
 508 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr::0:
 509 #
 510 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
 511 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
 512 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 513 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
 514 # MAP a GDB RAW register number onto a simulator register number.  See
 515 # also include/...-sim.h.
 516 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
 517 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
 518 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 519 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 520 # setjmp/longjmp support.
 521 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
 522 #
 523 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
 524 # much better but at least they are vaguely consistent).  The headers
 525 # and body contain convoluted #if/#else sequences for determine how
 526 # things should be compiled.  Instead of trying to mimic that
 527 # behaviour here (and hence entrench it further) gdbarch simply
 528 # reqires that these methods be set up from the word go.  This also
 529 # avoids any potential problems with moving beyond multi-arch partial.
 530 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
 531 # Replaced by push_dummy_code.
 532 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
 533 # Replaced by push_dummy_code.
 534 f::CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void::::entry_point_address::0
 535 # Replaced by push_dummy_code.
 536 v::CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset
 537 # Replaced by push_dummy_code.
 538 v::CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset
 539 # Replaced by push_dummy_code.
 540 v::CALL_DUMMY_LENGTH:int:call_dummy_length
 541 # NOTE: cagney/2002-11-24: This function with predicate has a valid
 542 # (callable) initial value.  As a consequence, even when the predicate
 543 # is false, the corresponding function works.  This simplifies the
 544 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
 545 # doesn't need to be modified.
 546 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
 547 # Replaced by push_dummy_code.
 548 v::CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 549 # Replaced by push_dummy_code.
 550 v::SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
 551 # Replaced by push_dummy_code.
 552 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust::::0
 553 # Replaced by push_dummy_code.
 554 F::FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p
 555 # This is a replacement for FIX_CALL_DUMMY et.al.
 556 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:
 557 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
 558 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
 559 #
 560 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 561 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 562 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
 563 #
 564 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
 565 f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
 566 f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to:::0::0
 567 #
 568 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
 569 f:1:REGISTER_TO_VALUE:void:register_to_value:int regnum, struct type *type, char *from, char *to:regnum, type, from, to::0:legacy_register_to_value::0
 570 f:1:VALUE_TO_REGISTER:void:value_to_register:struct type *type, int regnum, char *from, char *to:type, regnum, from, to::0:legacy_value_to_register::0
 571 #
 572 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
 573 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
 574 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
 575 #
 576 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 577 # Replaced by PUSH_DUMMY_CALL
 578 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
 579 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:struct regcache *regcache, CORE_ADDR dummy_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:regcache, dummy_addr, nargs, args, sp, struct_return, struct_addr
 580 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-:::0
 581 # NOTE: This can be handled directly in push_dummy_call.
 582 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
 583 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-:::0
 584 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
 585 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
 586 #
 587 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
 588 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
 589 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
 590 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
 591 #
 592 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
 593 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
 594 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
 595 #
 596 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame:::0
 597 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
 598 #
 599 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 600 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
 601 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 602 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
 603 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 604 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 605 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
 606 f:2:PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
 607 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
 608 #
 609 f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
 610 #
 611 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 612 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 613 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame::0:0
 614 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
 615 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC.  Please
 616 # note, per UNWIND_PC's doco, that while the two have similar
 617 # interfaces they have very different underlying implementations.
 618 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi::0:0
 619 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame:
 620 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:get_frame_base::0
 621 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:get_frame_base::0
 622 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
 623 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
 624 #
 625 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
 626 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
 627 # NOTE: cagney/2003-03-24: This is better handled by PUSH_ARGUMENTS.
 628 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
 629 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
 630 # FIXME: kettenis/2003-03-08: This should be replaced by a function
 631 # parametrized with (at least) the regcache.
 632 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
 633 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info::0:0
 634 v:2:PARM_BOUNDARY:int:parm_boundary
 635 #
 636 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
 637 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
 638 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
 639 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
 640 # On some machines there are bits in addresses which are not really
 641 # part of the address, but are used by the kernel, the hardware, etc.
 642 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 643 # we get a "real" address such as one would find in a symbol table.
 644 # This is used only for addresses of instructions, and even then I'm
 645 # not sure it's used in all contexts.  It exists to deal with there
 646 # being a few stray bits in the PC which would mislead us, not as some
 647 # sort of generic thing to handle alignment or segmentation (it's
 648 # possible it should be in TARGET_READ_PC instead).
 649 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 650 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
 651 # ADDR_BITS_REMOVE.
 652 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
 653 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 654 # the target needs software single step.  An ISA method to implement it.
 655 #
 656 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 657 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 658 #
 659 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 660 # single step.  If not, then implement single step using breakpoints.
 661 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
 662 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
 663 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 664
 665
 666 # For SVR4 shared libraries, each call goes through a small piece of
 667 # trampoline code in the ".plt" section.  IN_SOLIB_CALL_TRAMPOLINE evaluates
 668 # to nonzero if we are currently stopped in one of these.
 669 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
 670
 671 # Some systems also have trampoline code for returning from shared libs.
 672 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
 673
 674 # Sigtramp is a routine that the kernel calls (which then calls the
 675 # signal handler).  On most machines it is a library routine that is
 676 # linked into the executable.
 677 #
 678 # This macro, given a program counter value and the name of the
 679 # function in which that PC resides (which can be null if the name is
 680 # not known), returns nonzero if the PC and name show that we are in
 681 # sigtramp.
 682 #
 683 # On most machines just see if the name is sigtramp (and if we have
 684 # no name, assume we are not in sigtramp).
 685 #
 686 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
 687 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
 688 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
 689 # own local NAME lookup.
 690 #
 691 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
 692 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
 693 # does not.
 694 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
 695 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
 696 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
 697 # A target might have problems with watchpoints as soon as the stack
 698 # frame of the current function has been destroyed.  This mostly happens
 699 # as the first action in a funtion's epilogue.  in_function_epilogue_p()
 700 # is defined to return a non-zero value if either the given addr is one
 701 # instruction after the stack destroying instruction up to the trailing
 702 # return instruction or if we can figure out that the stack frame has
 703 # already been invalidated regardless of the value of addr.  Targets
 704 # which don't suffer from that problem could just let this functionality
 705 # untouched.
 706 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
 707 # Given a vector of command-line arguments, return a newly allocated
 708 # string which, when passed to the create_inferior function, will be
 709 # parsed (on Unix systems, by the shell) to yield the same vector.
 710 # This function should call error() if the argument vector is not
 711 # representable for this target or if this target does not support
 712 # command-line arguments.
 713 # ARGC is the number of elements in the vector.
 714 # ARGV is an array of strings, one per argument.
 715 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
 716 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
 717 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
 718 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
 719 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
 720 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
 721 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
 722 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
 723 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags:
 724 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
 725 # Is a register in a group
 726 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
 727 EOF
 728 }
 729
 730 #
 731 # The .log file
 732 #
 733 exec > new-gdbarch.log
 734 function_list | while do_read
 735 do
 736     cat <<EOF
 737 ${class} ${macro}(${actual})
 738   ${returntype} ${function} ($formal)${attrib}
 739 EOF
 740     for r in ${read}
 741     do
 742         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 743     done
 744     if class_is_predicate_p && fallback_default_p
 745     then
 746         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 747         kill $$
 748         exit 1
 749     fi
 750     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 751     then
 752         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 753         kill $$
 754         exit 1
 755     fi
 756     if class_is_multiarch_p
 757     then
 758         if class_is_predicate_p ; then :
 759         elif test "x${predefault}" = "x"
 760         then
 761             echo "Error: pure multi-arch function must have a predefault" 1>&2
 762             kill $$
 763             exit 1
 764         fi
 765     fi
 766     echo ""
 767 done
 768
 769 exec 1>&2
 770 compare_new gdbarch.log
 771
 772
 773 copyright ()
 774 {
 775 cat <<EOF
 776 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 777
 778 /* Dynamic architecture support for GDB, the GNU debugger.
 779    Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 780
 781    This file is part of GDB.
 782
 783    This program is free software; you can redistribute it and/or modify
 784    it under the terms of the GNU General Public License as published by
 785    the Free Software Foundation; either version 2 of the License, or
 786    (at your option) any later version.
 787
 788    This program is distributed in the hope that it will be useful,
 789    but WITHOUT ANY WARRANTY; without even the implied warranty of
 790    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 791    GNU General Public License for more details.
 792
 793    You should have received a copy of the GNU General Public License
 794    along with this program; if not, write to the Free Software
 795    Foundation, Inc., 59 Temple Place - Suite 330,
 796    Boston, MA 02111-1307, USA.  */
 797
 798 /* This file was created with the aid of \`\`gdbarch.sh''.
 799
 800    The Bourne shell script \`\`gdbarch.sh'' creates the files
 801    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 802    against the existing \`\`gdbarch.[hc]''.  Any differences found
 803    being reported.
 804
 805    If editing this file, please also run gdbarch.sh and merge any
 806    changes into that script. Conversely, when making sweeping changes
 807    to this file, modifying gdbarch.sh and using its output may prove
 808    easier. */
 809
 810 EOF
 811 }
 812
 813 #
 814 # The .h file
 815 #
 816
 817 exec > new-gdbarch.h
 818 copyright
 819 cat <<EOF
 820 #ifndef GDBARCH_H
 821 #define GDBARCH_H
 822
 823 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
 824 #if !GDB_MULTI_ARCH
 825 /* Pull in function declarations refered to, indirectly, via macros.  */
 826 #include "inferior.h"           /* For unsigned_address_to_pointer().  */
 827 #include "symfile.h"            /* For entry_point_address().  */
 828 #endif
 829
 830 struct floatformat;
 831 struct ui_file;
 832 struct frame_info;
 833 struct value;
 834 struct objfile;
 835 struct minimal_symbol;
 836 struct regcache;
 837 struct reggroup;
 838
 839 extern struct gdbarch *current_gdbarch;
 840
 841
 842 /* If any of the following are defined, the target wasn't correctly
 843    converted. */
 844
 845 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 846 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 847 #endif
 848 EOF
 849
 850 # function typedef's
 851 printf "\n"
 852 printf "\n"
 853 printf "/* The following are pre-initialized by GDBARCH. */\n"
 854 function_list | while do_read
 855 do
 856     if class_is_info_p
 857     then
 858         printf "\n"
 859         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 860         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 861         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 862         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 863         printf "#endif\n"
 864         printf "#if GDB_MULTI_ARCH\n"
 865         printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
 866         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 867         printf "#endif\n"
 868         printf "#endif\n"
 869     fi
 870 done
 871
 872 # function typedef's
 873 printf "\n"
 874 printf "\n"
 875 printf "/* The following are initialized by the target dependent code. */\n"
 876 function_list | while do_read
 877 do
 878     if [ -n "${comment}" ]
 879     then
 880         echo "${comment}" | sed \
 881             -e '2 s,#,/*,' \
 882             -e '3,$ s,#,  ,' \
 883             -e '$ s,$, */,'
 884     fi
 885     if class_is_multiarch_p
 886     then
 887         if class_is_predicate_p
 888         then
 889             printf "\n"
 890             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 891         fi
 892     else
 893         if class_is_predicate_p
 894         then
 895             printf "\n"
 896             printf "#if defined (${macro})\n"
 897             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 898             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 899             printf "#if !defined (${macro}_P)\n"
 900             printf "#define ${macro}_P() (1)\n"
 901             printf "#endif\n"
 902             printf "#endif\n"
 903             printf "\n"
 904             printf "/* Default predicate for non- multi-arch targets. */\n"
 905             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
 906             printf "#define ${macro}_P() (0)\n"
 907             printf "#endif\n"
 908             printf "\n"
 909             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 910             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
 911             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 912             printf "#endif\n"
 913             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
 914             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 915             printf "#endif\n"
 916         fi
 917     fi
 918     if class_is_variable_p
 919     then
 920         if fallback_default_p || class_is_predicate_p
 921         then
 922             printf "\n"
 923             printf "/* Default (value) for non- multi-arch platforms. */\n"
 924             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 925             echo "#define ${macro} (${fallbackdefault})" \
 926                 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 927             printf "#endif\n"
 928         fi
 929         printf "\n"
 930         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 931         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 932         printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 933         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 934         printf "#endif\n"
 935         if test "${level}" = ""
 936         then
 937             printf "#if !defined (${macro})\n"
 938             printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 939             printf "#endif\n"
 940         else
 941             printf "#if GDB_MULTI_ARCH\n"
 942             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
 943             printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 944             printf "#endif\n"
 945             printf "#endif\n"
 946         fi
 947     fi
 948     if class_is_function_p
 949     then
 950         if class_is_multiarch_p ; then :
 951         elif fallback_default_p || class_is_predicate_p
 952         then
 953             printf "\n"
 954             printf "/* Default (function) for non- multi-arch platforms. */\n"
 955             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 956             if [ "x${fallbackdefault}" = "x0" ]
 957             then
 958                 if [ "x${actual}" = "x-" ]
 959                 then
 960                     printf "#define ${macro} (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
 961                 else
 962                     printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
 963                 fi
 964             else
 965                 # FIXME: Should be passing current_gdbarch through!
 966                 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
 967                     | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 968             fi
 969             printf "#endif\n"
 970         fi
 971         printf "\n"
 972         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 973         then
 974             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 975         elif class_is_multiarch_p
 976         then
 977             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 978         else
 979             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 980         fi
 981         if [ "x${formal}" = "xvoid" ]
 982         then
 983           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 984         else
 985           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 986         fi
 987         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 988         if class_is_multiarch_p ; then :
 989         else
 990             printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
 991             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 992             printf "#endif\n"
 993             printf "#if GDB_MULTI_ARCH\n"
 994             printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
 995             if [ "x${actual}" = "x" ]
 996             then
 997                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 998             elif [ "x${actual}" = "x-" ]
 999             then
1000                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
1001             else
1002                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
1003             fi
1004             printf "#endif\n"
1005             printf "#endif\n"
1006         fi
1007     fi
1008 done
1009
1010 # close it off
1011 cat <<EOF
1012
1013 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1014
1015
1016 /* Mechanism for co-ordinating the selection of a specific
1017    architecture.
1018
1019    GDB targets (*-tdep.c) can register an interest in a specific
1020    architecture.  Other GDB components can register a need to maintain
1021    per-architecture data.
1022
1023    The mechanisms below ensures that there is only a loose connection
1024    between the set-architecture command and the various GDB
1025    components.  Each component can independently register their need
1026    to maintain architecture specific data with gdbarch.
1027
1028    Pragmatics:
1029
1030    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
1031    didn't scale.
1032
1033    The more traditional mega-struct containing architecture specific
1034    data for all the various GDB components was also considered.  Since
1035    GDB is built from a variable number of (fairly independent)
1036    components it was determined that the global aproach was not
1037    applicable. */
1038
1039
1040 /* Register a new architectural family with GDB.
1041
1042    Register support for the specified ARCHITECTURE with GDB.  When
1043    gdbarch determines that the specified architecture has been
1044    selected, the corresponding INIT function is called.
1045
1046    --
1047
1048    The INIT function takes two parameters: INFO which contains the
1049    information available to gdbarch about the (possibly new)
1050    architecture; ARCHES which is a list of the previously created
1051    \`\`struct gdbarch'' for this architecture.
1052
1053    The INFO parameter is, as far as possible, be pre-initialized with
1054    information obtained from INFO.ABFD or the previously selected
1055    architecture.
1056
1057    The ARCHES parameter is a linked list (sorted most recently used)
1058    of all the previously created architures for this architecture
1059    family.  The (possibly NULL) ARCHES->gdbarch can used to access
1060    values from the previously selected architecture for this
1061    architecture family.  The global \`\`current_gdbarch'' shall not be
1062    used.
1063
1064    The INIT function shall return any of: NULL - indicating that it
1065    doesn't recognize the selected architecture; an existing \`\`struct
1066    gdbarch'' from the ARCHES list - indicating that the new
1067    architecture is just a synonym for an earlier architecture (see
1068    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1069    - that describes the selected architecture (see gdbarch_alloc()).
1070
1071    The DUMP_TDEP function shall print out all target specific values.
1072    Care should be taken to ensure that the function works in both the
1073    multi-arch and non- multi-arch cases. */
1074
1075 struct gdbarch_list
1076 {
1077   struct gdbarch *gdbarch;
1078   struct gdbarch_list *next;
1079 };
1080
1081 struct gdbarch_info
1082 {
1083   /* Use default: NULL (ZERO). */
1084   const struct bfd_arch_info *bfd_arch_info;
1085
1086   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
1087   int byte_order;
1088
1089   /* Use default: NULL (ZERO). */
1090   bfd *abfd;
1091
1092   /* Use default: NULL (ZERO). */
1093   struct gdbarch_tdep_info *tdep_info;
1094
1095   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
1096   enum gdb_osabi osabi;
1097 };
1098
1099 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1100 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1101
1102 /* DEPRECATED - use gdbarch_register() */
1103 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1104
1105 extern void gdbarch_register (enum bfd_architecture architecture,
1106                               gdbarch_init_ftype *,
1107                               gdbarch_dump_tdep_ftype *);
1108
1109
1110 /* Return a freshly allocated, NULL terminated, array of the valid
1111    architecture names.  Since architectures are registered during the
1112    _initialize phase this function only returns useful information
1113    once initialization has been completed. */
1114
1115 extern const char **gdbarch_printable_names (void);
1116
1117
1118 /* Helper function.  Search the list of ARCHES for a GDBARCH that
1119    matches the information provided by INFO. */
1120
1121 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
1122
1123
1124 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
1125    basic initialization using values obtained from the INFO andTDEP
1126    parameters.  set_gdbarch_*() functions are called to complete the
1127    initialization of the object. */
1128
1129 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1130
1131
1132 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
1133    It is assumed that the caller freeds the \`\`struct
1134    gdbarch_tdep''. */
1135
1136 extern void gdbarch_free (struct gdbarch *);
1137
1138
1139 /* Helper function. Force an update of the current architecture.
1140
1141    The actual architecture selected is determined by INFO, \`\`(gdb) set
1142    architecture'' et.al., the existing architecture and BFD's default
1143    architecture.  INFO should be initialized to zero and then selected
1144    fields should be updated.
1145
1146    Returns non-zero if the update succeeds */
1147
1148 extern int gdbarch_update_p (struct gdbarch_info info);
1149
1150
1151
1152 /* Register per-architecture data-pointer.
1153
1154    Reserve space for a per-architecture data-pointer.  An identifier
1155    for the reserved data-pointer is returned.  That identifer should
1156    be saved in a local static variable.
1157
1158    The per-architecture data-pointer is either initialized explicitly
1159    (set_gdbarch_data()) or implicitly (by INIT() via a call to
1160    gdbarch_data()).  FREE() is called to delete either an existing
1161    data-pointer overridden by set_gdbarch_data() or when the
1162    architecture object is being deleted.
1163
1164    When a previously created architecture is re-selected, the
1165    per-architecture data-pointer for that previous architecture is
1166    restored.  INIT() is not re-called.
1167
1168    Multiple registrarants for any architecture are allowed (and
1169    strongly encouraged).  */
1170
1171 struct gdbarch_data;
1172
1173 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1174 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1175                                         void *pointer);
1176 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1177                                                    gdbarch_data_free_ftype *free);
1178 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1179                               struct gdbarch_data *data,
1180                               void *pointer);
1181
1182 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1183
1184
1185 /* Register per-architecture memory region.
1186
1187    Provide a memory-region swap mechanism.  Per-architecture memory
1188    region are created.  These memory regions are swapped whenever the
1189    architecture is changed.  For a new architecture, the memory region
1190    is initialized with zero (0) and the INIT function is called.
1191
1192    Memory regions are swapped / initialized in the order that they are
1193    registered.  NULL DATA and/or INIT values can be specified.
1194
1195    New code should use register_gdbarch_data(). */
1196
1197 typedef void (gdbarch_swap_ftype) (void);
1198 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1199 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1200
1201
1202
1203 /* The target-system-dependent byte order is dynamic */
1204
1205 extern int target_byte_order;
1206 #ifndef TARGET_BYTE_ORDER
1207 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1208 #endif
1209
1210 extern int target_byte_order_auto;
1211 #ifndef TARGET_BYTE_ORDER_AUTO
1212 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1213 #endif
1214
1215
1216
1217 /* The target-system-dependent BFD architecture is dynamic */
1218
1219 extern int target_architecture_auto;
1220 #ifndef TARGET_ARCHITECTURE_AUTO
1221 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1222 #endif
1223
1224 extern const struct bfd_arch_info *target_architecture;
1225 #ifndef TARGET_ARCHITECTURE
1226 #define TARGET_ARCHITECTURE (target_architecture + 0)
1227 #endif
1228
1229
1230 /* The target-system-dependent disassembler is semi-dynamic */
1231
1232 /* Use gdb_disassemble, and gdbarch_print_insn instead.  */
1233 extern int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info*);
1234
1235 /* Use set_gdbarch_print_insn instead.  */
1236 extern disassemble_info deprecated_tm_print_insn_info;
1237
1238 /* Set the dynamic target-system-dependent parameters (architecture,
1239    byte-order, ...) using information found in the BFD */
1240
1241 extern void set_gdbarch_from_file (bfd *);
1242
1243
1244 /* Initialize the current architecture to the "first" one we find on
1245    our list.  */
1246
1247 extern void initialize_current_architecture (void);
1248
1249 /* For non-multiarched targets, do any initialization of the default
1250    gdbarch object necessary after the _initialize_MODULE functions
1251    have run.  */
1252 extern void initialize_non_multiarch (void);
1253
1254 /* gdbarch trace variable */
1255 extern int gdbarch_debug;
1256
1257 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1258
1259 #endif
1260 EOF
1261 exec 1>&2
1262 #../move-if-change new-gdbarch.h gdbarch.h
1263 compare_new gdbarch.h
1264
1265
1266 #
1267 # C file
1268 #
1269
1270 exec > new-gdbarch.c
1271 copyright
1272 cat <<EOF
1273
1274 #include "defs.h"
1275 #include "arch-utils.h"
1276
1277 #if GDB_MULTI_ARCH
1278 #include "gdbcmd.h"
1279 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1280 #else
1281 /* Just include everything in sight so that the every old definition
1282    of macro is visible. */
1283 #include "gdb_string.h"
1284 #include <ctype.h>
1285 #include "symtab.h"
1286 #include "frame.h"
1287 #include "inferior.h"
1288 #include "breakpoint.h"
1289 #include "gdb_wait.h"
1290 #include "gdbcore.h"
1291 #include "gdbcmd.h"
1292 #include "target.h"
1293 #include "gdbthread.h"
1294 #include "annotate.h"
1295 #include "symfile.h"            /* for overlay functions */
1296 #include "value.h"              /* For old tm.h/nm.h macros.  */
1297 #endif
1298 #include "symcat.h"
1299
1300 #include "floatformat.h"
1301
1302 #include "gdb_assert.h"
1303 #include "gdb_string.h"
1304 #include "gdb-events.h"
1305 #include "reggroups.h"
1306 #include "osabi.h"
1307 #include "symfile.h"            /* For entry_point_address.  */
1308
1309 /* Static function declarations */
1310
1311 static void verify_gdbarch (struct gdbarch *gdbarch);
1312 static void alloc_gdbarch_data (struct gdbarch *);
1313 static void free_gdbarch_data (struct gdbarch *);
1314 static void init_gdbarch_swap (struct gdbarch *);
1315 static void clear_gdbarch_swap (struct gdbarch *);
1316 static void swapout_gdbarch_swap (struct gdbarch *);
1317 static void swapin_gdbarch_swap (struct gdbarch *);
1318
1319 /* Non-zero if we want to trace architecture code.  */
1320
1321 #ifndef GDBARCH_DEBUG
1322 #define GDBARCH_DEBUG 0
1323 #endif
1324 int gdbarch_debug = GDBARCH_DEBUG;
1325
1326 EOF
1327
1328 # gdbarch open the gdbarch object
1329 printf "\n"
1330 printf "/* Maintain the struct gdbarch object */\n"
1331 printf "\n"
1332 printf "struct gdbarch\n"
1333 printf "{\n"
1334 printf "  /* Has this architecture been fully initialized?  */\n"
1335 printf "  int initialized_p;\n"
1336 printf "  /* basic architectural information */\n"
1337 function_list | while do_read
1338 do
1339     if class_is_info_p
1340     then
1341         printf "  ${returntype} ${function};\n"
1342     fi
1343 done
1344 printf "\n"
1345 printf "  /* target specific vector. */\n"
1346 printf "  struct gdbarch_tdep *tdep;\n"
1347 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1348 printf "\n"
1349 printf "  /* per-architecture data-pointers */\n"
1350 printf "  unsigned nr_data;\n"
1351 printf "  void **data;\n"
1352 printf "\n"
1353 printf "  /* per-architecture swap-regions */\n"
1354 printf "  struct gdbarch_swap *swap;\n"
1355 printf "\n"
1356 cat <<EOF
1357   /* Multi-arch values.
1358
1359      When extending this structure you must:
1360
1361      Add the field below.
1362
1363      Declare set/get functions and define the corresponding
1364      macro in gdbarch.h.
1365
1366      gdbarch_alloc(): If zero/NULL is not a suitable default,
1367      initialize the new field.
1368
1369      verify_gdbarch(): Confirm that the target updated the field
1370      correctly.
1371
1372      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1373      field is dumped out
1374
1375      \`\`startup_gdbarch()'': Append an initial value to the static
1376      variable (base values on the host's c-type system).
1377
1378      get_gdbarch(): Implement the set/get functions (probably using
1379      the macro's as shortcuts).
1380
1381      */
1382
1383 EOF
1384 function_list | while do_read
1385 do
1386     if class_is_variable_p
1387     then
1388         printf "  ${returntype} ${function};\n"
1389     elif class_is_function_p
1390     then
1391         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1392     fi
1393 done
1394 printf "};\n"
1395
1396 # A pre-initialized vector
1397 printf "\n"
1398 printf "\n"
1399 cat <<EOF
1400 /* The default architecture uses host values (for want of a better
1401    choice). */
1402 EOF
1403 printf "\n"
1404 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1405 printf "\n"
1406 printf "struct gdbarch startup_gdbarch =\n"
1407 printf "{\n"
1408 printf "  1, /* Always initialized.  */\n"
1409 printf "  /* basic architecture information */\n"
1410 function_list | while do_read
1411 do
1412     if class_is_info_p
1413     then
1414         printf "  ${staticdefault},\n"
1415     fi
1416 done
1417 cat <<EOF
1418   /* target specific vector and its dump routine */
1419   NULL, NULL,
1420   /*per-architecture data-pointers and swap regions */
1421   0, NULL, NULL,
1422   /* Multi-arch values */
1423 EOF
1424 function_list | while do_read
1425 do
1426     if class_is_function_p || class_is_variable_p
1427     then
1428         printf "  ${staticdefault},\n"
1429     fi
1430 done
1431 cat <<EOF
1432   /* startup_gdbarch() */
1433 };
1434
1435 struct gdbarch *current_gdbarch = &startup_gdbarch;
1436
1437 /* Do any initialization needed for a non-multiarch configuration
1438    after the _initialize_MODULE functions have been run.  */
1439 void
1440 initialize_non_multiarch (void)
1441 {
1442   alloc_gdbarch_data (&startup_gdbarch);
1443   /* Ensure that all swap areas are zeroed so that they again think
1444      they are starting from scratch.  */
1445   clear_gdbarch_swap (&startup_gdbarch);
1446   init_gdbarch_swap (&startup_gdbarch);
1447 }
1448 EOF
1449
1450 # Create a new gdbarch struct
1451 printf "\n"
1452 printf "\n"
1453 cat <<EOF
1454 /* Create a new \`\`struct gdbarch'' based on information provided by
1455    \`\`struct gdbarch_info''. */
1456 EOF
1457 printf "\n"
1458 cat <<EOF
1459 struct gdbarch *
1460 gdbarch_alloc (const struct gdbarch_info *info,
1461                struct gdbarch_tdep *tdep)
1462 {
1463   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1464      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1465      the current local architecture and not the previous global
1466      architecture.  This ensures that the new architectures initial
1467      values are not influenced by the previous architecture.  Once
1468      everything is parameterised with gdbarch, this will go away.  */
1469   struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1470   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1471
1472   alloc_gdbarch_data (current_gdbarch);
1473
1474   current_gdbarch->tdep = tdep;
1475 EOF
1476 printf "\n"
1477 function_list | while do_read
1478 do
1479     if class_is_info_p
1480     then
1481         printf "  current_gdbarch->${function} = info->${function};\n"
1482     fi
1483 done
1484 printf "\n"
1485 printf "  /* Force the explicit initialization of these. */\n"
1486 function_list | while do_read
1487 do
1488     if class_is_function_p || class_is_variable_p
1489     then
1490         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1491         then
1492           printf "  current_gdbarch->${function} = ${predefault};\n"
1493         fi
1494     fi
1495 done
1496 cat <<EOF
1497   /* gdbarch_alloc() */
1498
1499   return current_gdbarch;
1500 }
1501 EOF
1502
1503 # Free a gdbarch struct.
1504 printf "\n"
1505 printf "\n"
1506 cat <<EOF
1507 /* Free a gdbarch struct.  This should never happen in normal
1508    operation --- once you've created a gdbarch, you keep it around.
1509    However, if an architecture's init function encounters an error
1510    building the structure, it may need to clean up a partially
1511    constructed gdbarch.  */
1512
1513 void
1514 gdbarch_free (struct gdbarch *arch)
1515 {
1516   gdb_assert (arch != NULL);
1517   free_gdbarch_data (arch);
1518   xfree (arch);
1519 }
1520 EOF
1521
1522 # verify a new architecture
1523 printf "\n"
1524 printf "\n"
1525 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1526 printf "\n"
1527 cat <<EOF
1528 static void
1529 verify_gdbarch (struct gdbarch *gdbarch)
1530 {
1531   struct ui_file *log;
1532   struct cleanup *cleanups;
1533   long dummy;
1534   char *buf;
1535   /* Only perform sanity checks on a multi-arch target. */
1536   if (!GDB_MULTI_ARCH)
1537     return;
1538   log = mem_fileopen ();
1539   cleanups = make_cleanup_ui_file_delete (log);
1540   /* fundamental */
1541   if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1542     fprintf_unfiltered (log, "\n\tbyte-order");
1543   if (gdbarch->bfd_arch_info == NULL)
1544     fprintf_unfiltered (log, "\n\tbfd_arch_info");
1545   /* Check those that need to be defined for the given multi-arch level. */
1546 EOF
1547 function_list | while do_read
1548 do
1549     if class_is_function_p || class_is_variable_p
1550     then
1551         if [ "x${invalid_p}" = "x0" ]
1552         then
1553             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1554         elif class_is_predicate_p
1555         then
1556             printf "  /* Skip verify of ${function}, has predicate */\n"
1557         # FIXME: See do_read for potential simplification
1558         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1559         then
1560             printf "  if (${invalid_p})\n"
1561             printf "    gdbarch->${function} = ${postdefault};\n"
1562         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1563         then
1564             printf "  if (gdbarch->${function} == ${predefault})\n"
1565             printf "    gdbarch->${function} = ${postdefault};\n"
1566         elif [ -n "${postdefault}" ]
1567         then
1568             printf "  if (gdbarch->${function} == 0)\n"
1569             printf "    gdbarch->${function} = ${postdefault};\n"
1570         elif [ -n "${invalid_p}" ]
1571         then
1572             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1573             printf "      && (${invalid_p}))\n"
1574             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1575         elif [ -n "${predefault}" ]
1576         then
1577             printf "  if ((GDB_MULTI_ARCH ${gt_level})\n"
1578             printf "      && (gdbarch->${function} == ${predefault}))\n"
1579             printf "    fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1580         fi
1581     fi
1582 done
1583 cat <<EOF
1584   buf = ui_file_xstrdup (log, &dummy);
1585   make_cleanup (xfree, buf);
1586   if (strlen (buf) > 0)
1587     internal_error (__FILE__, __LINE__,
1588                     "verify_gdbarch: the following are invalid ...%s",
1589                     buf);
1590   do_cleanups (cleanups);
1591 }
1592 EOF
1593
1594 # dump the structure
1595 printf "\n"
1596 printf "\n"
1597 cat <<EOF
1598 /* Print out the details of the current architecture. */
1599
1600 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1601    just happens to match the global variable \`\`current_gdbarch''.  That
1602    way macros refering to that variable get the local and not the global
1603    version - ulgh.  Once everything is parameterised with gdbarch, this
1604    will go away. */
1605
1606 void
1607 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1608 {
1609   fprintf_unfiltered (file,
1610                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1611                       GDB_MULTI_ARCH);
1612 EOF
1613 function_list | sort -t: -k 3 | while do_read
1614 do
1615     # First the predicate
1616     if class_is_predicate_p
1617     then
1618         if class_is_multiarch_p
1619         then
1620             printf "  if (GDB_MULTI_ARCH)\n"
1621             printf "    fprintf_unfiltered (file,\n"
1622             printf "                        \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1623             printf "                        gdbarch_${function}_p (current_gdbarch));\n"
1624         else
1625             printf "#ifdef ${macro}_P\n"
1626             printf "  fprintf_unfiltered (file,\n"
1627             printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1628             printf "                      \"${macro}_P()\",\n"
1629             printf "                      XSTRING (${macro}_P ()));\n"
1630             printf "  fprintf_unfiltered (file,\n"
1631             printf "                      \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1632             printf "                      ${macro}_P ());\n"
1633             printf "#endif\n"
1634         fi
1635     fi
1636     # multiarch functions don't have macros.
1637     if class_is_multiarch_p
1638     then
1639         printf "  if (GDB_MULTI_ARCH)\n"
1640         printf "    fprintf_unfiltered (file,\n"
1641         printf "                        \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1642         printf "                        (long) current_gdbarch->${function});\n"
1643         continue
1644     fi
1645     # Print the macro definition.
1646     printf "#ifdef ${macro}\n"
1647     if [ "x${returntype}" = "xvoid" ]
1648     then
1649         printf "#if GDB_MULTI_ARCH\n"
1650         printf "  /* Macro might contain \`[{}]' when not multi-arch */\n"
1651     fi
1652     if class_is_function_p
1653     then
1654         printf "  fprintf_unfiltered (file,\n"
1655         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1656         printf "                      \"${macro}(${actual})\",\n"
1657         printf "                      XSTRING (${macro} (${actual})));\n"
1658     else
1659         printf "  fprintf_unfiltered (file,\n"
1660         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1661         printf "                      XSTRING (${macro}));\n"
1662     fi
1663     # Print the architecture vector value
1664     if [ "x${returntype}" = "xvoid" ]
1665     then
1666         printf "#endif\n"
1667     fi
1668     if [ "x${print_p}" = "x()" ]
1669     then
1670         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1671     elif [ "x${print_p}" = "x0" ]
1672     then
1673         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1674     elif [ -n "${print_p}" ]
1675     then
1676         printf "  if (${print_p})\n"
1677         printf "    fprintf_unfiltered (file,\n"
1678         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1679         printf "                        ${print});\n"
1680     elif class_is_function_p
1681     then
1682         printf "  if (GDB_MULTI_ARCH)\n"
1683         printf "    fprintf_unfiltered (file,\n"
1684         printf "                        \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1685         printf "                        (long) current_gdbarch->${function}\n"
1686         printf "                        /*${macro} ()*/);\n"
1687     else
1688         printf "  fprintf_unfiltered (file,\n"
1689         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1690         printf "                      ${print});\n"
1691     fi
1692     printf "#endif\n"
1693 done
1694 cat <<EOF
1695   if (current_gdbarch->dump_tdep != NULL)
1696     current_gdbarch->dump_tdep (current_gdbarch, file);
1697 }
1698 EOF
1699
1700
1701 # GET/SET
1702 printf "\n"
1703 cat <<EOF
1704 struct gdbarch_tdep *
1705 gdbarch_tdep (struct gdbarch *gdbarch)
1706 {
1707   if (gdbarch_debug >= 2)
1708     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1709   return gdbarch->tdep;
1710 }
1711 EOF
1712 printf "\n"
1713 function_list | while do_read
1714 do
1715     if class_is_predicate_p
1716     then
1717         printf "\n"
1718         printf "int\n"
1719         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1720         printf "{\n"
1721         printf "  gdb_assert (gdbarch != NULL);\n"
1722         if [ -n "${predicate}" ]
1723         then
1724             printf "  return ${predicate};\n"
1725         else
1726             printf "  return gdbarch->${function} != 0;\n"
1727         fi
1728         printf "}\n"
1729     fi
1730     if class_is_function_p
1731     then
1732         printf "\n"
1733         printf "${returntype}\n"
1734         if [ "x${formal}" = "xvoid" ]
1735         then
1736           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1737         else
1738           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1739         fi
1740         printf "{\n"
1741         printf "  gdb_assert (gdbarch != NULL);\n"
1742         printf "  if (gdbarch->${function} == 0)\n"
1743         printf "    internal_error (__FILE__, __LINE__,\n"
1744         printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1745         if class_is_predicate_p && test -n "${predicate}"
1746         then
1747             # Allow a call to a function with a predicate.
1748             printf "  /* Ignore predicate (${predicate}).  */\n"
1749         fi
1750         printf "  if (gdbarch_debug >= 2)\n"
1751         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1752         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1753         then
1754             if class_is_multiarch_p
1755             then
1756                 params="gdbarch"
1757             else
1758                 params=""
1759             fi
1760         else
1761             if class_is_multiarch_p
1762             then
1763                 params="gdbarch, ${actual}"
1764             else
1765                 params="${actual}"
1766             fi
1767         fi
1768         if [ "x${returntype}" = "xvoid" ]
1769         then
1770           printf "  gdbarch->${function} (${params});\n"
1771         else
1772           printf "  return gdbarch->${function} (${params});\n"
1773         fi
1774         printf "}\n"
1775         printf "\n"
1776         printf "void\n"
1777         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1778         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1779         printf "{\n"
1780         printf "  gdbarch->${function} = ${function};\n"
1781         printf "}\n"
1782     elif class_is_variable_p
1783     then
1784         printf "\n"
1785         printf "${returntype}\n"
1786         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1787         printf "{\n"
1788         printf "  gdb_assert (gdbarch != NULL);\n"
1789         if [ "x${invalid_p}" = "x0" ]
1790         then
1791             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1792         elif [ -n "${invalid_p}" ]
1793         then
1794           printf "  if (${invalid_p})\n"
1795           printf "    internal_error (__FILE__, __LINE__,\n"
1796           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1797         elif [ -n "${predefault}" ]
1798         then
1799           printf "  if (gdbarch->${function} == ${predefault})\n"
1800           printf "    internal_error (__FILE__, __LINE__,\n"
1801           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1802         fi
1803         printf "  if (gdbarch_debug >= 2)\n"
1804         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1805         printf "  return gdbarch->${function};\n"
1806         printf "}\n"
1807         printf "\n"
1808         printf "void\n"
1809         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1810         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1811         printf "{\n"
1812         printf "  gdbarch->${function} = ${function};\n"
1813         printf "}\n"
1814     elif class_is_info_p
1815     then
1816         printf "\n"
1817         printf "${returntype}\n"
1818         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1819         printf "{\n"
1820         printf "  gdb_assert (gdbarch != NULL);\n"
1821         printf "  if (gdbarch_debug >= 2)\n"
1822         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1823         printf "  return gdbarch->${function};\n"
1824         printf "}\n"
1825     fi
1826 done
1827
1828 # All the trailing guff
1829 cat <<EOF
1830
1831
1832 /* Keep a registry of per-architecture data-pointers required by GDB
1833    modules. */
1834
1835 struct gdbarch_data
1836 {
1837   unsigned index;
1838   int init_p;
1839   gdbarch_data_init_ftype *init;
1840   gdbarch_data_free_ftype *free;
1841 };
1842
1843 struct gdbarch_data_registration
1844 {
1845   struct gdbarch_data *data;
1846   struct gdbarch_data_registration *next;
1847 };
1848
1849 struct gdbarch_data_registry
1850 {
1851   unsigned nr;
1852   struct gdbarch_data_registration *registrations;
1853 };
1854
1855 struct gdbarch_data_registry gdbarch_data_registry =
1856 {
1857   0, NULL,
1858 };
1859
1860 struct gdbarch_data *
1861 register_gdbarch_data (gdbarch_data_init_ftype *init,
1862                        gdbarch_data_free_ftype *free)
1863 {
1864   struct gdbarch_data_registration **curr;
1865   /* Append the new registraration.  */
1866   for (curr = &gdbarch_data_registry.registrations;
1867        (*curr) != NULL;
1868        curr = &(*curr)->next);
1869   (*curr) = XMALLOC (struct gdbarch_data_registration);
1870   (*curr)->next = NULL;
1871   (*curr)->data = XMALLOC (struct gdbarch_data);
1872   (*curr)->data->index = gdbarch_data_registry.nr++;
1873   (*curr)->data->init = init;
1874   (*curr)->data->init_p = 1;
1875   (*curr)->data->free = free;
1876   return (*curr)->data;
1877 }
1878
1879
1880 /* Create/delete the gdbarch data vector. */
1881
1882 static void
1883 alloc_gdbarch_data (struct gdbarch *gdbarch)
1884 {
1885   gdb_assert (gdbarch->data == NULL);
1886   gdbarch->nr_data = gdbarch_data_registry.nr;
1887   gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1888 }
1889
1890 static void
1891 free_gdbarch_data (struct gdbarch *gdbarch)
1892 {
1893   struct gdbarch_data_registration *rego;
1894   gdb_assert (gdbarch->data != NULL);
1895   for (rego = gdbarch_data_registry.registrations;
1896        rego != NULL;
1897        rego = rego->next)
1898     {
1899       struct gdbarch_data *data = rego->data;
1900       gdb_assert (data->index < gdbarch->nr_data);
1901       if (data->free != NULL && gdbarch->data[data->index] != NULL)
1902         {
1903           data->free (gdbarch, gdbarch->data[data->index]);
1904           gdbarch->data[data->index] = NULL;
1905         }
1906     }
1907   xfree (gdbarch->data);
1908   gdbarch->data = NULL;
1909 }
1910
1911
1912 /* Initialize the current value of the specified per-architecture
1913    data-pointer. */
1914
1915 void
1916 set_gdbarch_data (struct gdbarch *gdbarch,
1917                   struct gdbarch_data *data,
1918                   void *pointer)
1919 {
1920   gdb_assert (data->index < gdbarch->nr_data);
1921   if (gdbarch->data[data->index] != NULL)
1922     {
1923       gdb_assert (data->free != NULL);
1924       data->free (gdbarch, gdbarch->data[data->index]);
1925     }
1926   gdbarch->data[data->index] = pointer;
1927 }
1928
1929 /* Return the current value of the specified per-architecture
1930    data-pointer. */
1931
1932 void *
1933 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1934 {
1935   gdb_assert (data->index < gdbarch->nr_data);
1936   /* The data-pointer isn't initialized, call init() to get a value but
1937      only if the architecture initializaiton has completed.  Otherwise
1938      punt - hope that the caller knows what they are doing.  */
1939   if (gdbarch->data[data->index] == NULL
1940       && gdbarch->initialized_p)
1941     {
1942       /* Be careful to detect an initialization cycle.  */
1943       gdb_assert (data->init_p);
1944       data->init_p = 0;
1945       gdb_assert (data->init != NULL);
1946       gdbarch->data[data->index] = data->init (gdbarch);
1947       data->init_p = 1;
1948       gdb_assert (gdbarch->data[data->index] != NULL);
1949     }
1950   return gdbarch->data[data->index];
1951 }
1952
1953
1954
1955 /* Keep a registry of swapped data required by GDB modules. */
1956
1957 struct gdbarch_swap
1958 {
1959   void *swap;
1960   struct gdbarch_swap_registration *source;
1961   struct gdbarch_swap *next;
1962 };
1963
1964 struct gdbarch_swap_registration
1965 {
1966   void *data;
1967   unsigned long sizeof_data;
1968   gdbarch_swap_ftype *init;
1969   struct gdbarch_swap_registration *next;
1970 };
1971
1972 struct gdbarch_swap_registry
1973 {
1974   int nr;
1975   struct gdbarch_swap_registration *registrations;
1976 };
1977
1978 struct gdbarch_swap_registry gdbarch_swap_registry =
1979 {
1980   0, NULL,
1981 };
1982
1983 void
1984 register_gdbarch_swap (void *data,
1985                        unsigned long sizeof_data,
1986                        gdbarch_swap_ftype *init)
1987 {
1988   struct gdbarch_swap_registration **rego;
1989   for (rego = &gdbarch_swap_registry.registrations;
1990        (*rego) != NULL;
1991        rego = &(*rego)->next);
1992   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1993   (*rego)->next = NULL;
1994   (*rego)->init = init;
1995   (*rego)->data = data;
1996   (*rego)->sizeof_data = sizeof_data;
1997 }
1998
1999 static void
2000 clear_gdbarch_swap (struct gdbarch *gdbarch)
2001 {
2002   struct gdbarch_swap *curr;
2003   for (curr = gdbarch->swap;
2004        curr != NULL;
2005        curr = curr->next)
2006     {
2007       memset (curr->source->data, 0, curr->source->sizeof_data);
2008     }
2009 }
2010
2011 static void
2012 init_gdbarch_swap (struct gdbarch *gdbarch)
2013 {
2014   struct gdbarch_swap_registration *rego;
2015   struct gdbarch_swap **curr = &gdbarch->swap;
2016   for (rego = gdbarch_swap_registry.registrations;
2017        rego != NULL;
2018        rego = rego->next)
2019     {
2020       if (rego->data != NULL)
2021         {
2022           (*curr) = XMALLOC (struct gdbarch_swap);
2023           (*curr)->source = rego;
2024           (*curr)->swap = xmalloc (rego->sizeof_data);
2025           (*curr)->next = NULL;
2026           curr = &(*curr)->next;
2027         }
2028       if (rego->init != NULL)
2029         rego->init ();
2030     }
2031 }
2032
2033 static void
2034 swapout_gdbarch_swap (struct gdbarch *gdbarch)
2035 {
2036   struct gdbarch_swap *curr;
2037   for (curr = gdbarch->swap;
2038        curr != NULL;
2039        curr = curr->next)
2040     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
2041 }
2042
2043 static void
2044 swapin_gdbarch_swap (struct gdbarch *gdbarch)
2045 {
2046   struct gdbarch_swap *curr;
2047   for (curr = gdbarch->swap;
2048        curr != NULL;
2049        curr = curr->next)
2050     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2051 }
2052
2053
2054 /* Keep a registry of the architectures known by GDB. */
2055
2056 struct gdbarch_registration
2057 {
2058   enum bfd_architecture bfd_architecture;
2059   gdbarch_init_ftype *init;
2060   gdbarch_dump_tdep_ftype *dump_tdep;
2061   struct gdbarch_list *arches;
2062   struct gdbarch_registration *next;
2063 };
2064
2065 static struct gdbarch_registration *gdbarch_registry = NULL;
2066
2067 static void
2068 append_name (const char ***buf, int *nr, const char *name)
2069 {
2070   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2071   (*buf)[*nr] = name;
2072   *nr += 1;
2073 }
2074
2075 const char **
2076 gdbarch_printable_names (void)
2077 {
2078   if (GDB_MULTI_ARCH)
2079     {
2080       /* Accumulate a list of names based on the registed list of
2081          architectures. */
2082       enum bfd_architecture a;
2083       int nr_arches = 0;
2084       const char **arches = NULL;
2085       struct gdbarch_registration *rego;
2086       for (rego = gdbarch_registry;
2087            rego != NULL;
2088            rego = rego->next)
2089         {
2090           const struct bfd_arch_info *ap;
2091           ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2092           if (ap == NULL)
2093             internal_error (__FILE__, __LINE__,
2094                             "gdbarch_architecture_names: multi-arch unknown");
2095           do
2096             {
2097               append_name (&arches, &nr_arches, ap->printable_name);
2098               ap = ap->next;
2099             }
2100           while (ap != NULL);
2101         }
2102       append_name (&arches, &nr_arches, NULL);
2103       return arches;
2104     }
2105   else
2106     /* Just return all the architectures that BFD knows.  Assume that
2107        the legacy architecture framework supports them. */
2108     return bfd_arch_list ();
2109 }
2110
2111
2112 void
2113 gdbarch_register (enum bfd_architecture bfd_architecture,
2114                   gdbarch_init_ftype *init,
2115                   gdbarch_dump_tdep_ftype *dump_tdep)
2116 {
2117   struct gdbarch_registration **curr;
2118   const struct bfd_arch_info *bfd_arch_info;
2119   /* Check that BFD recognizes this architecture */
2120   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2121   if (bfd_arch_info == NULL)
2122     {
2123       internal_error (__FILE__, __LINE__,
2124                       "gdbarch: Attempt to register unknown architecture (%d)",
2125                       bfd_architecture);
2126     }
2127   /* Check that we haven't seen this architecture before */
2128   for (curr = &gdbarch_registry;
2129        (*curr) != NULL;
2130        curr = &(*curr)->next)
2131     {
2132       if (bfd_architecture == (*curr)->bfd_architecture)
2133         internal_error (__FILE__, __LINE__,
2134                         "gdbarch: Duplicate registraration of architecture (%s)",
2135                         bfd_arch_info->printable_name);
2136     }
2137   /* log it */
2138   if (gdbarch_debug)
2139     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2140                         bfd_arch_info->printable_name,
2141                         (long) init);
2142   /* Append it */
2143   (*curr) = XMALLOC (struct gdbarch_registration);
2144   (*curr)->bfd_architecture = bfd_architecture;
2145   (*curr)->init = init;
2146   (*curr)->dump_tdep = dump_tdep;
2147   (*curr)->arches = NULL;
2148   (*curr)->next = NULL;
2149   /* When non- multi-arch, install whatever target dump routine we've
2150      been provided - hopefully that routine has been written correctly
2151      and works regardless of multi-arch. */
2152   if (!GDB_MULTI_ARCH && dump_tdep != NULL
2153       && startup_gdbarch.dump_tdep == NULL)
2154     startup_gdbarch.dump_tdep = dump_tdep;
2155 }
2156
2157 void
2158 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2159                        gdbarch_init_ftype *init)
2160 {
2161   gdbarch_register (bfd_architecture, init, NULL);
2162 }
2163
2164
2165 /* Look for an architecture using gdbarch_info.  Base search on only
2166    BFD_ARCH_INFO and BYTE_ORDER. */
2167
2168 struct gdbarch_list *
2169 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2170                              const struct gdbarch_info *info)
2171 {
2172   for (; arches != NULL; arches = arches->next)
2173     {
2174       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2175         continue;
2176       if (info->byte_order != arches->gdbarch->byte_order)
2177         continue;
2178       if (info->osabi != arches->gdbarch->osabi)
2179         continue;
2180       return arches;
2181     }
2182   return NULL;
2183 }
2184
2185
2186 /* Update the current architecture. Return ZERO if the update request
2187    failed. */
2188
2189 int
2190 gdbarch_update_p (struct gdbarch_info info)
2191 {
2192   struct gdbarch *new_gdbarch;
2193   struct gdbarch *old_gdbarch;
2194   struct gdbarch_registration *rego;
2195
2196   /* Fill in missing parts of the INFO struct using a number of
2197      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
2198
2199   /* \`\`(gdb) set architecture ...'' */
2200   if (info.bfd_arch_info == NULL
2201       && !TARGET_ARCHITECTURE_AUTO)
2202     info.bfd_arch_info = TARGET_ARCHITECTURE;
2203   if (info.bfd_arch_info == NULL
2204       && info.abfd != NULL
2205       && bfd_get_arch (info.abfd) != bfd_arch_unknown
2206       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2207     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2208   if (info.bfd_arch_info == NULL)
2209     info.bfd_arch_info = TARGET_ARCHITECTURE;
2210
2211   /* \`\`(gdb) set byte-order ...'' */
2212   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2213       && !TARGET_BYTE_ORDER_AUTO)
2214     info.byte_order = TARGET_BYTE_ORDER;
2215   /* From the INFO struct. */
2216   if (info.byte_order == BFD_ENDIAN_UNKNOWN
2217       && info.abfd != NULL)
2218     info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2219                        : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2220                        : BFD_ENDIAN_UNKNOWN);
2221   /* From the current target. */
2222   if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2223     info.byte_order = TARGET_BYTE_ORDER;
2224
2225   /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi.  */
2226   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2227     info.osabi = gdbarch_lookup_osabi (info.abfd);
2228   if (info.osabi == GDB_OSABI_UNINITIALIZED)
2229     info.osabi = current_gdbarch->osabi;
2230
2231   /* Must have found some sort of architecture. */
2232   gdb_assert (info.bfd_arch_info != NULL);
2233
2234   if (gdbarch_debug)
2235     {
2236       fprintf_unfiltered (gdb_stdlog,
2237                           "gdbarch_update: info.bfd_arch_info %s\n",
2238                           (info.bfd_arch_info != NULL
2239                            ? info.bfd_arch_info->printable_name
2240                            : "(null)"));
2241       fprintf_unfiltered (gdb_stdlog,
2242                           "gdbarch_update: info.byte_order %d (%s)\n",
2243                           info.byte_order,
2244                           (info.byte_order == BFD_ENDIAN_BIG ? "big"
2245                            : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2246                            : "default"));
2247       fprintf_unfiltered (gdb_stdlog,
2248                           "gdbarch_update: info.osabi %d (%s)\n",
2249                           info.osabi, gdbarch_osabi_name (info.osabi));
2250       fprintf_unfiltered (gdb_stdlog,
2251                           "gdbarch_update: info.abfd 0x%lx\n",
2252                           (long) info.abfd);
2253       fprintf_unfiltered (gdb_stdlog,
2254                           "gdbarch_update: info.tdep_info 0x%lx\n",
2255                           (long) info.tdep_info);
2256     }
2257
2258   /* Find the target that knows about this architecture. */
2259   for (rego = gdbarch_registry;
2260        rego != NULL;
2261        rego = rego->next)
2262     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2263       break;
2264   if (rego == NULL)
2265     {
2266       if (gdbarch_debug)
2267         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2268       return 0;
2269     }
2270
2271   /* Swap the data belonging to the old target out setting the
2272      installed data to zero.  This stops the ->init() function trying
2273      to refer to the previous architecture's global data structures.  */
2274   swapout_gdbarch_swap (current_gdbarch);
2275   clear_gdbarch_swap (current_gdbarch);
2276
2277   /* Save the previously selected architecture, setting the global to
2278      NULL.  This stops ->init() trying to use the previous
2279      architecture's configuration.  The previous architecture may not
2280      even be of the same architecture family.  The most recent
2281      architecture of the same family is found at the head of the
2282      rego->arches list.  */
2283   old_gdbarch = current_gdbarch;
2284   current_gdbarch = NULL;
2285
2286   /* Ask the target for a replacement architecture. */
2287   new_gdbarch = rego->init (info, rego->arches);
2288
2289   /* Did the target like it?  No. Reject the change and revert to the
2290      old architecture.  */
2291   if (new_gdbarch == NULL)
2292     {
2293       if (gdbarch_debug)
2294         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2295       swapin_gdbarch_swap (old_gdbarch);
2296       current_gdbarch = old_gdbarch;
2297       return 0;
2298     }
2299
2300   /* Did the architecture change?  No.  Oops, put the old architecture
2301      back.  */
2302   if (old_gdbarch == new_gdbarch)
2303     {
2304       if (gdbarch_debug)
2305         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2306                             (long) new_gdbarch,
2307                             new_gdbarch->bfd_arch_info->printable_name);
2308       swapin_gdbarch_swap (old_gdbarch);
2309       current_gdbarch = old_gdbarch;
2310       return 1;
2311     }
2312
2313   /* Is this a pre-existing architecture?  Yes. Move it to the front
2314      of the list of architectures (keeping the list sorted Most
2315      Recently Used) and then copy it in.  */
2316   {
2317     struct gdbarch_list **list;
2318     for (list = &rego->arches;
2319          (*list) != NULL;
2320          list = &(*list)->next)
2321       {
2322         if ((*list)->gdbarch == new_gdbarch)
2323           {
2324             struct gdbarch_list *this;
2325             if (gdbarch_debug)
2326               fprintf_unfiltered (gdb_stdlog,
2327                                   "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2328                                   (long) new_gdbarch,
2329                                   new_gdbarch->bfd_arch_info->printable_name);
2330             /* Unlink this.  */
2331             this = (*list);
2332             (*list) = this->next;
2333             /* Insert in the front.  */
2334             this->next = rego->arches;
2335             rego->arches = this;
2336             /* Copy the new architecture in.  */
2337             current_gdbarch = new_gdbarch;
2338             swapin_gdbarch_swap (new_gdbarch);
2339             architecture_changed_event ();
2340             return 1;
2341           }
2342       }
2343   }
2344
2345   /* Prepend this new architecture to the architecture list (keep the
2346      list sorted Most Recently Used).  */
2347   {
2348     struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2349     this->next = rego->arches;
2350     this->gdbarch = new_gdbarch;
2351     rego->arches = this;
2352   }
2353
2354   /* Switch to this new architecture marking it initialized.  */
2355   current_gdbarch = new_gdbarch;
2356   current_gdbarch->initialized_p = 1;
2357   if (gdbarch_debug)
2358     {
2359       fprintf_unfiltered (gdb_stdlog,
2360                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2361                           (long) new_gdbarch,
2362                           new_gdbarch->bfd_arch_info->printable_name);
2363     }
2364
2365   /* Check that the newly installed architecture is valid.  Plug in
2366      any post init values.  */
2367   new_gdbarch->dump_tdep = rego->dump_tdep;
2368   verify_gdbarch (new_gdbarch);
2369
2370   /* Initialize the per-architecture memory (swap) areas.
2371      CURRENT_GDBARCH must be update before these modules are
2372      called. */
2373   init_gdbarch_swap (new_gdbarch);
2374
2375   /* Initialize the per-architecture data.  CURRENT_GDBARCH
2376      must be updated before these modules are called. */
2377   architecture_changed_event ();
2378
2379   if (gdbarch_debug)
2380     gdbarch_dump (current_gdbarch, gdb_stdlog);
2381
2382   return 1;
2383 }
2384
2385
2386 /* Disassembler */
2387
2388 /* Pointer to the target-dependent disassembly function.  */
2389 int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info *);
2390
2391 extern void _initialize_gdbarch (void);
2392
2393 void
2394 _initialize_gdbarch (void)
2395 {
2396   struct cmd_list_element *c;
2397
2398   add_show_from_set (add_set_cmd ("arch",
2399                                   class_maintenance,
2400                                   var_zinteger,
2401                                   (char *)&gdbarch_debug,
2402                                   "Set architecture debugging.\\n\\
2403 When non-zero, architecture debugging is enabled.", &setdebuglist),
2404                      &showdebuglist);
2405   c = add_set_cmd ("archdebug",
2406                    class_maintenance,
2407                    var_zinteger,
2408                    (char *)&gdbarch_debug,
2409                    "Set architecture debugging.\\n\\
2410 When non-zero, architecture debugging is enabled.", &setlist);
2411
2412   deprecate_cmd (c, "set debug arch");
2413   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2414 }
2415 EOF
2416
2417 # close things off
2418 exec 1>&2
2419 #../move-if-change new-gdbarch.c gdbarch.c
2420 compare_new gdbarch.c