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