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