gdb/gdbarch.sh

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