gdb/gdbarch.sh

   1 #!/bin/sh -u
   2
   3 # Architecture commands for GDB, the GNU debugger.
   4 # Copyright 1998, 1999, 2000, 2001 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 compare_new ()
  23 {
  24     file=$1
  25     if test ! -r ${file}
  26     then
  27         echo "${file} missing? cp new-${file} ${file}" 1>&2
  28     elif diff -c ${file} new-${file}
  29     then
  30         echo "${file} unchanged" 1>&2
  31     else
  32         echo "${file} has changed? cp new-${file} ${file}" 1>&2
  33     fi
  34 }
  35
  36
  37 # Format of the input table
  38 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
  39
  40 do_read ()
  41 {
  42     comment=""
  43     class=""
  44     while read line
  45     do
  46         if test "${line}" = ""
  47         then
  48             continue
  49         elif test "${line}" = "#" -a "${comment}" = ""
  50         then
  51             continue
  52         elif expr "${line}" : "#" > /dev/null
  53         then
  54             comment="${comment}
  55 ${line}"
  56         else
  57
  58             # The semantics of IFS varies between different SH's.  Some
  59             # treat ``::' as three fields while some treat it as just too.
  60             # Work around this by eliminating ``::'' ....
  61             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  62
  63             OFS="${IFS}" ; IFS="[:]"
  64             eval read ${read} <<EOF
  65 ${line}
  66 EOF
  67             IFS="${OFS}"
  68
  69             # .... and then going back through each field and strip out those
  70             # that ended up with just that space character.
  71             for r in ${read}
  72             do
  73                 if eval test \"\${${r}}\" = \"\ \"
  74                 then
  75                     eval ${r}=""
  76                 fi
  77             done
  78
  79             test "${staticdefault}" || staticdefault=0
  80             # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
  81             # multi-arch defaults.
  82             # test "${predefault}" || predefault=0
  83             test "${fmt}" || fmt="%ld"
  84             test "${print}" || print="(long) ${macro}"
  85             case "${invalid_p}" in
  86                 0 ) valid_p=1 ;;
  87                 "" )
  88                     if [ "${predefault}" ]
  89                     then
  90                         #invalid_p="gdbarch->${function} == ${predefault}"
  91                         valid_p="gdbarch->${function} != ${predefault}"
  92                     else
  93                         #invalid_p="gdbarch->${function} == 0"
  94                         valid_p="gdbarch->${function} != 0"
  95                     fi
  96                     ;;
  97                 * ) valid_p="!(${invalid_p})"
  98             esac
  99
 100             # PREDEFAULT is a valid fallback definition of MEMBER when
 101             # multi-arch is not enabled.  This ensures that the
 102             # default value, when multi-arch is the same as the
 103             # default value when not multi-arch.  POSTDEFAULT is
 104             # always a valid definition of MEMBER as this again
 105             # ensures consistency.
 106
 107             if [ "${postdefault}" != "" ]
 108             then
 109                 fallbackdefault="${postdefault}"
 110             elif [ "${predefault}" != "" ]
 111             then
 112                 fallbackdefault="${predefault}"
 113             else
 114                 fallbackdefault=""
 115             fi
 116
 117             #NOT YET: See gdbarch.log for basic verification of
 118             # database
 119
 120             break
 121         fi
 122     done
 123     if [ "${class}" ]
 124     then
 125         true
 126     else
 127         false
 128     fi
 129 }
 130
 131
 132 fallback_default_p ()
 133 {
 134     [ "${postdefault}" != "" -a "${invalid_p}" != "0" ] \
 135         || [ "${predefault}" != "" -a "${invalid_p}" = "0" ]
 136 }
 137
 138 class_is_variable_p ()
 139 {
 140     case "${class}" in
 141         *v* | *V* ) true ;;
 142         * ) false ;;
 143     esac
 144 }
 145
 146 class_is_function_p ()
 147 {
 148     case "${class}" in
 149         *f* | *F* | *m* | *M* ) true ;;
 150         * ) false ;;
 151     esac
 152 }
 153
 154 class_is_multiarch_p ()
 155 {
 156     case "${class}" in
 157         *m* | *M* ) true ;;
 158         * ) false ;;
 159     esac
 160 }
 161
 162 class_is_predicate_p ()
 163 {
 164     case "${class}" in
 165         *F* | *V* | *M* ) true ;;
 166         * ) false ;;
 167     esac
 168 }
 169
 170 class_is_info_p ()
 171 {
 172     case "${class}" in
 173         *i* ) true ;;
 174         * ) false ;;
 175     esac
 176 }
 177
 178
 179 # dump out/verify the doco
 180 for field in ${read}
 181 do
 182   case ${field} in
 183
 184     class ) : ;;
 185
 186         # # -> line disable
 187         # f -> function
 188         #   hiding a function
 189         # F -> function + predicate
 190         #   hiding a function + predicate to test function validity
 191         # v -> variable
 192         #   hiding a variable
 193         # V -> variable + predicate
 194         #   hiding a variable + predicate to test variables validity
 195         # i -> set from info
 196         #   hiding something from the ``struct info'' object
 197         # m -> multi-arch function
 198         #   hiding a multi-arch function (parameterised with the architecture)
 199         # M -> multi-arch function + predicate
 200         #   hiding a multi-arch function + predicate to test function validity
 201
 202     level ) : ;;
 203
 204         # See GDB_MULTI_ARCH description.  Having GDB_MULTI_ARCH >=
 205         # LEVEL is a predicate on checking that a given method is
 206         # initialized (using INVALID_P).
 207
 208     macro ) : ;;
 209
 210         # The name of the MACRO that this method is to be accessed by.
 211
 212     returntype ) : ;;
 213
 214         # For functions, the return type; for variables, the data type
 215
 216     function ) : ;;
 217
 218         # For functions, the member function name; for variables, the
 219         # variable name.  Member function names are always prefixed with
 220         # ``gdbarch_'' for name-space purity.
 221
 222     formal ) : ;;
 223
 224         # The formal argument list.  It is assumed that the formal
 225         # argument list includes the actual name of each list element.
 226         # A function with no arguments shall have ``void'' as the
 227         # formal argument list.
 228
 229     actual ) : ;;
 230
 231         # The list of actual arguments.  The arguments specified shall
 232         # match the FORMAL list given above.  Functions with out
 233         # arguments leave this blank.
 234
 235     attrib ) : ;;
 236
 237         # Any GCC attributes that should be attached to the function
 238         # declaration.  At present this field is unused.
 239
 240     staticdefault ) : ;;
 241
 242         # To help with the GDB startup a static gdbarch object is
 243         # created.  STATICDEFAULT is the value to insert into that
 244         # static gdbarch object.  Since this a static object only
 245         # simple expressions can be used.
 246
 247         # If STATICDEFAULT is empty, zero is used.
 248
 249     predefault ) : ;;
 250
 251         # A initial value to assign to MEMBER of the freshly
 252         # malloc()ed gdbarch object.  After the gdbarch object has
 253         # been initialized using PREDEFAULT, it is passed to the
 254         # target code for further updates.
 255
 256         # If PREDEFAULT is empty, zero is used.
 257
 258         # When POSTDEFAULT is empty, a non-empty PREDEFAULT and a zero
 259         # INVALID_P will be used as default values when when
 260         # multi-arch is disabled.  Specify a zero PREDEFAULT function
 261         # to make that fallback call internal_error().
 262
 263         # Variable declarations can refer to ``gdbarch'' which will
 264         # contain the current architecture.  Care should be taken.
 265
 266     postdefault ) : ;;
 267
 268         # A value to assign to MEMBER of the new gdbarch object should
 269         # the target code fail to change the PREDEFAULT value.  Also
 270         # use POSTDEFAULT as the fallback value for the non-
 271         # multi-arch case.
 272
 273         # If POSTDEFAULT is empty, no post update is performed.
 274
 275         # If both INVALID_P and POSTDEFAULT are non-empty then
 276         # INVALID_P will be used to determine if MEMBER should be
 277         # changed to POSTDEFAULT.
 278
 279         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 280
 281         # Variable declarations can refer to ``gdbarch'' which will
 282         # contain the current architecture.  Care should be taken.
 283
 284     invalid_p ) : ;;
 285
 286         # A predicate equation that validates MEMBER.  Non-zero is
 287         # returned if the code creating the new architecture failed to
 288         # initialize MEMBER or the initialized the member is invalid.
 289         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 290         # that value.  If POSTDEFAULT is empty then internal_error()
 291         # is called.
 292
 293         # If INVALID_P is empty, a check that MEMBER is no longer
 294         # equal to PREDEFAULT is used.
 295
 296         # The expression ``0'' disables the INVALID_P check making
 297         # PREDEFAULT a legitimate value.
 298
 299         # See also PREDEFAULT and POSTDEFAULT.
 300
 301     fmt ) : ;;
 302
 303         # printf style format string that can be used to print out the
 304         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 305         # ignored and the function address is printed.
 306
 307         # If FMT is empty, ``%ld'' is used.
 308
 309     print ) : ;;
 310
 311         # An optional equation that casts MEMBER to a value suitable
 312         # for formatting by FMT.
 313
 314         # If PRINT is empty, ``(long)'' is used.
 315
 316     print_p ) : ;;
 317
 318         # An optional indicator for any predicte to wrap around the
 319         # print member code.
 320
 321         #   () -> Call a custom function to do the dump.
 322         #   exp -> Wrap print up in ``if (${print_p}) ...
 323         #   ``'' -> No predicate
 324
 325         # If PRINT_P is empty, ``1'' is always used.
 326
 327     description ) : ;;
 328
 329         # Currently unused.
 330
 331     *) exit 1;;
 332   esac
 333 done
 334
 335
 336 function_list ()
 337 {
 338   # See below (DOCO) for description of each field
 339   cat <<EOF
 340 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 341 #
 342 i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN
 343 # Number of bits in a char or unsigned char for the target machine.
 344 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 345 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 346 #
 347 # Number of bits in a short or unsigned short for the target machine.
 348 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 349 # Number of bits in an int or unsigned int for the target machine.
 350 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 351 # Number of bits in a long or unsigned long for the target machine.
 352 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 353 # Number of bits in a long long or unsigned long long for the target
 354 # machine.
 355 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 356 # Number of bits in a float for the target machine.
 357 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 358 # Number of bits in a double for the target machine.
 359 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 360 # Number of bits in a long double for the target machine.
 361 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0
 362 # For most targets, a pointer on the target and its representation as an
 363 # address in GDB have the same size and "look the same".  For such a
 364 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 365 # / addr_bit will be set from it.
 366 #
 367 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 368 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 369 #
 370 # ptr_bit is the size of a pointer on the target
 371 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 372 # addr_bit is the size of a target address as represented in gdb
 373 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 374 # Number of bits in a BFD_VMA for the target object file format.
 375 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 376 #
 377 v::IEEE_FLOAT:int:ieee_float::::0:0::0:::
 378 #
 379 f::TARGET_READ_PC:CORE_ADDR:read_pc:int pid:pid::0:generic_target_read_pc::0
 380 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, int pid:val, pid::0:generic_target_write_pc::0
 381 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
 382 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
 383 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
 384 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
 385 #
 386 M:::void:register_read:int regnum, char *buf:regnum, buf:
 387 M:::void:register_write:int regnum, char *buf:regnum, buf:
 388 #
 389 v:2:NUM_REGS:int:num_regs::::0:-1
 390 # This macro gives the number of pseudo-registers that live in the
 391 # register namespace but do not get fetched or stored on the target.
 392 # These pseudo-registers may be aliases for other registers,
 393 # combinations of other registers, or they may be computed by GDB.
 394 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 395 v:2:SP_REGNUM:int:sp_regnum::::0:-1
 396 v:2:FP_REGNUM:int:fp_regnum::::0:-1
 397 v:2:PC_REGNUM:int:pc_regnum::::0:-1
 398 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 399 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
 400 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
 401 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 402 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 403 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 404 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 405 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 406 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 407 # Convert from an sdb register number to an internal gdb register number.
 408 # This should be defined in tm.h, if REGISTER_NAMES is not set up
 409 # to map one to one onto the sdb register numbers.
 410 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 411 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 412 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
 413 v:2:REGISTER_SIZE:int:register_size::::0:-1
 414 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
 415 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
 416 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0
 417 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
 418 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0
 419 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
 420 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
 421 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
 422 # MAP a GDB RAW register number onto a simulator register number.  See
 423 # also include/...-sim.h.
 424 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
 425 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
 426 #
 427 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
 428 v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
 429 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
 430 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
 431 v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1:::0x%08lx::CALL_DUMMY_BREAKPOINT_OFFSET_P
 432 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
 433 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
 434 f:2:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0
 435 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
 436 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 437 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
 438 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
 439 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
 440 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
 441 #
 442 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 443 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 444 f:2:COERCE_FLOAT_TO_DOUBLE:int:coerce_float_to_double:struct type *formal, struct type *actual:formal, actual:::default_coerce_float_to_double::0
 445 f:1: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::generic_get_saved_register:0
 446 #
 447 f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
 448 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
 449 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
 450 # This function is called when the value of a pseudo-register needs to
 451 # be updated.  Typically it will be defined on a per-architecture
 452 # basis.
 453 f:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:::0::0
 454 # This function is called when the value of a pseudo-register needs to
 455 # be set or stored.  Typically it will be defined on a
 456 # per-architecture basis.
 457 f:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:::0::0
 458 #
 459 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
 460 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
 461 #
 462 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 463 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
 464 f:1: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::0:0
 465 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
 466 f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
 467 f:2:POP_FRAME:void:pop_frame:void:-:::0
 468 #
 469 # I wish that these would just go away....
 470 f:2:D10V_MAKE_DADDR:CORE_ADDR:d10v_make_daddr:CORE_ADDR x:x:::0::0
 471 f:2:D10V_MAKE_IADDR:CORE_ADDR:d10v_make_iaddr:CORE_ADDR x:x:::0::0
 472 f:2:D10V_DADDR_P:int:d10v_daddr_p:CORE_ADDR x:x:::0::0
 473 f:2:D10V_IADDR_P:int:d10v_iaddr_p:CORE_ADDR x:x:::0::0
 474 f:2:D10V_CONVERT_DADDR_TO_RAW:CORE_ADDR:d10v_convert_daddr_to_raw:CORE_ADDR x:x:::0::0
 475 f:2:D10V_CONVERT_IADDR_TO_RAW:CORE_ADDR:d10v_convert_iaddr_to_raw:CORE_ADDR x:x:::0::0
 476 #
 477 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
 478 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
 479 f:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
 480 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::0
 481 #
 482 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
 483 f:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
 484 #
 485 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 486 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
 487 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 488 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
 489 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 490 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 491 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
 492 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
 493 #
 494 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
 495 #
 496 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 497 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 498 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
 499 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
 500 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
 501 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
 502 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
 503 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
 504 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
 505 #
 506 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
 507 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
 508 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
 509 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
 510 v:2:PARM_BOUNDARY:int:parm_boundary
 511 #
 512 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
 513 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
 514 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown
 515 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::default_convert_from_func_ptr_addr::0
 516 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 517 # the target needs software single step.  An ISA method to implement it.
 518 #
 519 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 520 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 521 #
 522 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 523 # single step.  If not, then implement single step using breakpoints.
 524 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
 525 EOF
 526 }
 527
 528 #
 529 # The .log file
 530 #
 531 exec > new-gdbarch.log
 532 function_list | while do_read
 533 do
 534     cat <<EOF
 535 ${class} ${macro}(${actual})
 536   ${returntype} ${function} ($formal)${attrib}
 537 EOF
 538     for r in ${read}
 539     do
 540         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 541     done
 542 #    #fallbackdefault=${fallbackdefault}
 543 #    #valid_p=${valid_p}
 544 #EOF
 545     if class_is_predicate_p && fallback_default_p
 546     then
 547         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 548         kill $$
 549         exit 1
 550     fi
 551     if [ "${invalid_p}" = "0" -a "${postdefault}" != "" ]
 552     then
 553         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 554         kill $$
 555         exit 1
 556     fi
 557     echo ""
 558 done
 559
 560 exec 1>&2
 561 compare_new gdbarch.log
 562
 563
 564 copyright ()
 565 {
 566 cat <<EOF
 567 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 568
 569 /* Dynamic architecture support for GDB, the GNU debugger.
 570    Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
 571
 572    This file is part of GDB.
 573
 574    This program is free software; you can redistribute it and/or modify
 575    it under the terms of the GNU General Public License as published by
 576    the Free Software Foundation; either version 2 of the License, or
 577    (at your option) any later version.
 578
 579    This program is distributed in the hope that it will be useful,
 580    but WITHOUT ANY WARRANTY; without even the implied warranty of
 581    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 582    GNU General Public License for more details.
 583
 584    You should have received a copy of the GNU General Public License
 585    along with this program; if not, write to the Free Software
 586    Foundation, Inc., 59 Temple Place - Suite 330,
 587    Boston, MA 02111-1307, USA.  */
 588
 589 /* This file was created with the aid of \`\`gdbarch.sh''.
 590
 591    The Bourne shell script \`\`gdbarch.sh'' creates the files
 592    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 593    against the existing \`\`gdbarch.[hc]''.  Any differences found
 594    being reported.
 595
 596    If editing this file, please also run gdbarch.sh and merge any
 597    changes into that script. Conversely, when making sweeping changes
 598    to this file, modifying gdbarch.sh and using its output may prove
 599    easier. */
 600
 601 EOF
 602 }
 603
 604 #
 605 # The .h file
 606 #
 607
 608 exec > new-gdbarch.h
 609 copyright
 610 cat <<EOF
 611 #ifndef GDBARCH_H
 612 #define GDBARCH_H
 613
 614 struct frame_info;
 615 struct value;
 616
 617
 618 extern struct gdbarch *current_gdbarch;
 619
 620
 621 /* If any of the following are defined, the target wasn't correctly
 622    converted. */
 623
 624 #if GDB_MULTI_ARCH
 625 #if defined (EXTRA_FRAME_INFO)
 626 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
 627 #endif
 628 #endif
 629
 630 #if GDB_MULTI_ARCH
 631 #if defined (FRAME_FIND_SAVED_REGS)
 632 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
 633 #endif
 634 #endif
 635 EOF
 636
 637 # function typedef's
 638 printf "\n"
 639 printf "\n"
 640 printf "/* The following are pre-initialized by GDBARCH. */\n"
 641 function_list | while do_read
 642 do
 643     if class_is_info_p
 644     then
 645         printf "\n"
 646         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 647         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 648         printf "#if GDB_MULTI_ARCH\n"
 649         printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
 650         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 651         printf "#endif\n"
 652         printf "#endif\n"
 653     fi
 654 done
 655
 656 # function typedef's
 657 printf "\n"
 658 printf "\n"
 659 printf "/* The following are initialized by the target dependent code. */\n"
 660 function_list | while do_read
 661 do
 662     if [ "${comment}" ]
 663     then
 664         echo "${comment}" | sed \
 665             -e '2 s,#,/*,' \
 666             -e '3,$ s,#,  ,' \
 667             -e '$ s,$, */,'
 668     fi
 669     if class_is_multiarch_p
 670     then
 671         if class_is_predicate_p
 672         then
 673             printf "\n"
 674             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 675         fi
 676     else
 677         if class_is_predicate_p
 678         then
 679             printf "\n"
 680             printf "#if defined (${macro})\n"
 681             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 682             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 683             printf "#if !defined (${macro}_P)\n"
 684             printf "#define ${macro}_P() (1)\n"
 685             printf "#endif\n"
 686             printf "#endif\n"
 687             printf "\n"
 688             printf "/* Default predicate for non- multi-arch targets. */\n"
 689             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
 690             printf "#define ${macro}_P() (0)\n"
 691             printf "#endif\n"
 692             printf "\n"
 693             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 694             printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
 695             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 696             printf "#endif\n"
 697         fi
 698     fi
 699     if class_is_variable_p
 700     then
 701         if fallback_default_p || class_is_predicate_p
 702         then
 703             printf "\n"
 704             printf "/* Default (value) for non- multi-arch platforms. */\n"
 705             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 706             echo "#define ${macro} (${fallbackdefault})" \
 707                 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 708             printf "#endif\n"
 709         fi
 710         printf "\n"
 711         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 712         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 713         printf "#if GDB_MULTI_ARCH\n"
 714         printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
 715         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 716         printf "#endif\n"
 717         printf "#endif\n"
 718     fi
 719     if class_is_function_p
 720     then
 721         if class_is_multiarch_p ; then :
 722         elif fallback_default_p || class_is_predicate_p
 723         then
 724             printf "\n"
 725             printf "/* Default (function) for non- multi-arch platforms. */\n"
 726             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 727             if [ "${fallbackdefault}" = "0" ]
 728             then
 729                 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
 730             else
 731                 # FIXME: Should be passing current_gdbarch through!
 732                 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
 733                     | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 734             fi
 735             printf "#endif\n"
 736         fi
 737         printf "\n"
 738         if [ "${formal}" = "void" ] && class_is_multiarch_p
 739         then
 740             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 741         elif class_is_multiarch_p
 742         then
 743             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 744         else
 745             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 746         fi
 747         if [ "${formal}" = "void" ]
 748         then
 749           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 750         else
 751           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 752         fi
 753         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 754         if class_is_multiarch_p ; then :
 755         else
 756             printf "#if GDB_MULTI_ARCH\n"
 757             printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
 758             if [ "${actual}" = "" ]
 759             then
 760                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 761             elif [ "${actual}" = "-" ]
 762             then
 763                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 764             else
 765                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
 766             fi
 767             printf "#endif\n"
 768             printf "#endif\n"
 769         fi
 770     fi
 771 done
 772
 773 # close it off
 774 cat <<EOF
 775
 776 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 777
 778
 779 /* Mechanism for co-ordinating the selection of a specific
 780    architecture.
 781
 782    GDB targets (*-tdep.c) can register an interest in a specific
 783    architecture.  Other GDB components can register a need to maintain
 784    per-architecture data.
 785
 786    The mechanisms below ensures that there is only a loose connection
 787    between the set-architecture command and the various GDB
 788    components.  Each component can independently register their need
 789    to maintain architecture specific data with gdbarch.
 790
 791    Pragmatics:
 792
 793    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 794    didn't scale.
 795
 796    The more traditional mega-struct containing architecture specific
 797    data for all the various GDB components was also considered.  Since
 798    GDB is built from a variable number of (fairly independent)
 799    components it was determined that the global aproach was not
 800    applicable. */
 801
 802
 803 /* Register a new architectural family with GDB.
 804
 805    Register support for the specified ARCHITECTURE with GDB.  When
 806    gdbarch determines that the specified architecture has been
 807    selected, the corresponding INIT function is called.
 808
 809    --
 810
 811    The INIT function takes two parameters: INFO which contains the
 812    information available to gdbarch about the (possibly new)
 813    architecture; ARCHES which is a list of the previously created
 814    \`\`struct gdbarch'' for this architecture.
 815
 816    The INIT function parameter INFO shall, as far as possible, be
 817    pre-initialized with information obtained from INFO.ABFD or
 818    previously selected architecture (if similar).  INIT shall ensure
 819    that the INFO.BYTE_ORDER is non-zero.
 820
 821    The INIT function shall return any of: NULL - indicating that it
 822    doesn't recognize the selected architecture; an existing \`\`struct
 823    gdbarch'' from the ARCHES list - indicating that the new
 824    architecture is just a synonym for an earlier architecture (see
 825    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
 826    - that describes the selected architecture (see gdbarch_alloc()).
 827
 828    The DUMP_TDEP function shall print out all target specific values.
 829    Care should be taken to ensure that the function works in both the
 830    multi-arch and non- multi-arch cases. */
 831
 832 struct gdbarch_list
 833 {
 834   struct gdbarch *gdbarch;
 835   struct gdbarch_list *next;
 836 };
 837
 838 struct gdbarch_info
 839 {
 840   /* Use default: bfd_arch_unknown (ZERO). */
 841   enum bfd_architecture bfd_architecture;
 842
 843   /* Use default: NULL (ZERO). */
 844   const struct bfd_arch_info *bfd_arch_info;
 845
 846   /* Use default: 0 (ZERO). */
 847   int byte_order;
 848
 849   /* Use default: NULL (ZERO). */
 850   bfd *abfd;
 851
 852   /* Use default: NULL (ZERO). */
 853   struct gdbarch_tdep_info *tdep_info;
 854 };
 855
 856 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
 857 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
 858
 859 /* DEPRECATED - use gdbarch_register() */
 860 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
 861
 862 extern void gdbarch_register (enum bfd_architecture architecture,
 863                               gdbarch_init_ftype *,
 864                               gdbarch_dump_tdep_ftype *);
 865
 866
 867 /* Return a freshly allocated, NULL terminated, array of the valid
 868    architecture names.  Since architectures are registered during the
 869    _initialize phase this function only returns useful information
 870    once initialization has been completed. */
 871
 872 extern const char **gdbarch_printable_names (void);
 873
 874
 875 /* Helper function.  Search the list of ARCHES for a GDBARCH that
 876    matches the information provided by INFO. */
 877
 878 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
 879
 880
 881 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
 882    basic initialization using values obtained from the INFO andTDEP
 883    parameters.  set_gdbarch_*() functions are called to complete the
 884    initialization of the object. */
 885
 886 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
 887
 888
 889 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
 890    It is assumed that the caller freeds the \`\`struct
 891    gdbarch_tdep''. */
 892
 893 extern void gdbarch_free (struct gdbarch *);
 894
 895
 896 /* Helper function. Force an update of the current architecture.  Used
 897    by legacy targets that have added their own target specific
 898    architecture manipulation commands.
 899
 900    The INFO parameter shall be fully initialized (\`\`memset (&INFO,
 901    sizeof (info), 0)'' set relevant fields) before gdbarch_update_p()
 902    is called.  gdbarch_update_p() shall initialize any \`\`default''
 903    fields using information obtained from the previous architecture or
 904    INFO.ABFD (if specified) before calling the corresponding
 905    architectures INIT function.
 906
 907    Returns non-zero if the update succeeds */
 908
 909 extern int gdbarch_update_p (struct gdbarch_info info);
 910
 911
 912
 913 /* Register per-architecture data-pointer.
 914
 915    Reserve space for a per-architecture data-pointer.  An identifier
 916    for the reserved data-pointer is returned.  That identifer should
 917    be saved in a local static variable.
 918
 919    The per-architecture data-pointer can be initialized in one of two
 920    ways: The value can be set explicitly using a call to
 921    set_gdbarch_data(); the value can be set implicitly using the value
 922    returned by a non-NULL INIT() callback.  INIT(), when non-NULL is
 923    called after the basic architecture vector has been created.
 924
 925    When a previously created architecture is re-selected, the
 926    per-architecture data-pointer for that previous architecture is
 927    restored.  INIT() is not called.
 928
 929    During initialization, multiple assignments of the data-pointer are
 930    allowed, non-NULL values are deleted by calling FREE().  If the
 931    architecture is deleted using gdbarch_free() all non-NULL data
 932    pointers are also deleted using FREE().
 933
 934    Multiple registrarants for any architecture are allowed (and
 935    strongly encouraged).  */
 936
 937 struct gdbarch_data;
 938
 939 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
 940 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
 941                                         void *pointer);
 942 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
 943                                                    gdbarch_data_free_ftype *free);
 944 extern void set_gdbarch_data (struct gdbarch *gdbarch,
 945                               struct gdbarch_data *data,
 946                               void *pointer);
 947
 948 extern void *gdbarch_data (struct gdbarch_data*);
 949
 950
 951 /* Register per-architecture memory region.
 952
 953    Provide a memory-region swap mechanism.  Per-architecture memory
 954    region are created.  These memory regions are swapped whenever the
 955    architecture is changed.  For a new architecture, the memory region
 956    is initialized with zero (0) and the INIT function is called.
 957
 958    Memory regions are swapped / initialized in the order that they are
 959    registered.  NULL DATA and/or INIT values can be specified.
 960
 961    New code should use register_gdbarch_data(). */
 962
 963 typedef void (gdbarch_swap_ftype) (void);
 964 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
 965 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
 966
 967
 968
 969 /* The target-system-dependent byte order is dynamic */
 970
 971 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
 972    is selectable at runtime.  The user can use the \`\`set endian''
 973    command to change it.  TARGET_BYTE_ORDER_AUTO is nonzero when
 974    target_byte_order should be auto-detected (from the program image
 975    say). */
 976
 977 #if GDB_MULTI_ARCH
 978 /* Multi-arch GDB is always bi-endian. */
 979 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
 980 #endif
 981
 982 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
 983 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
 984    when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
 985 #ifdef TARGET_BYTE_ORDER_SELECTABLE
 986 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
 987 #else
 988 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
 989 #endif
 990 #endif
 991
 992 extern int target_byte_order;
 993 #ifdef TARGET_BYTE_ORDER_SELECTABLE
 994 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
 995    and expect defs.h to re-define TARGET_BYTE_ORDER. */
 996 #undef TARGET_BYTE_ORDER
 997 #endif
 998 #ifndef TARGET_BYTE_ORDER
 999 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1000 #endif
1001
1002 extern int target_byte_order_auto;
1003 #ifndef TARGET_BYTE_ORDER_AUTO
1004 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1005 #endif
1006
1007
1008
1009 /* The target-system-dependent BFD architecture is dynamic */
1010
1011 extern int target_architecture_auto;
1012 #ifndef TARGET_ARCHITECTURE_AUTO
1013 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1014 #endif
1015
1016 extern const struct bfd_arch_info *target_architecture;
1017 #ifndef TARGET_ARCHITECTURE
1018 #define TARGET_ARCHITECTURE (target_architecture + 0)
1019 #endif
1020
1021
1022 /* The target-system-dependent disassembler is semi-dynamic */
1023
1024 #include "dis-asm.h"            /* Get defs for disassemble_info */
1025
1026 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1027                                 unsigned int len, disassemble_info *info);
1028
1029 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1030                                   disassemble_info *info);
1031
1032 extern void dis_asm_print_address (bfd_vma addr,
1033                                    disassemble_info *info);
1034
1035 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1036 extern disassemble_info tm_print_insn_info;
1037 #ifndef TARGET_PRINT_INSN
1038 #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info)
1039 #endif
1040 #ifndef TARGET_PRINT_INSN_INFO
1041 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1042 #endif
1043
1044
1045
1046 /* Explicit test for D10V architecture.
1047    USE of these macro's is *STRONGLY* discouraged. */
1048
1049 #define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v)
1050
1051
1052 /* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */
1053 #ifndef EXTRACT_STRUCT_VALUE_ADDRESS
1054 #define EXTRACT_STRUCT_VALUE_ADDRESS_P (0)
1055 #define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error (__FILE__, __LINE__, "gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0)
1056 #else
1057 #ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P
1058 #define EXTRACT_STRUCT_VALUE_ADDRESS_P (1)
1059 #endif
1060 #endif
1061
1062
1063 /* Set the dynamic target-system-dependent parameters (architecture,
1064    byte-order, ...) using information found in the BFD */
1065
1066 extern void set_gdbarch_from_file (bfd *);
1067
1068
1069 /* Initialize the current architecture to the "first" one we find on
1070    our list.  */
1071
1072 extern void initialize_current_architecture (void);
1073
1074
1075 /* gdbarch trace variable */
1076 extern int gdbarch_debug;
1077
1078 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1079
1080 #endif
1081 EOF
1082 exec 1>&2
1083 #../move-if-change new-gdbarch.h gdbarch.h
1084 compare_new gdbarch.h
1085
1086
1087 #
1088 # C file
1089 #
1090
1091 exec > new-gdbarch.c
1092 copyright
1093 cat <<EOF
1094
1095 #include "defs.h"
1096 #include "arch-utils.h"
1097
1098 #if GDB_MULTI_ARCH
1099 #include "gdbcmd.h"
1100 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1101 #else
1102 /* Just include everything in sight so that the every old definition
1103    of macro is visible. */
1104 #include "gdb_string.h"
1105 #include <ctype.h>
1106 #include "symtab.h"
1107 #include "frame.h"
1108 #include "inferior.h"
1109 #include "breakpoint.h"
1110 #include "gdb_wait.h"
1111 #include "gdbcore.h"
1112 #include "gdbcmd.h"
1113 #include "target.h"
1114 #include "gdbthread.h"
1115 #include "annotate.h"
1116 #include "symfile.h"            /* for overlay functions */
1117 #endif
1118 #include "symcat.h"
1119
1120 #include "floatformat.h"
1121
1122 #include "gdb_assert.h"
1123
1124 /* Static function declarations */
1125
1126 static void verify_gdbarch (struct gdbarch *gdbarch);
1127 static void alloc_gdbarch_data (struct gdbarch *);
1128 static void init_gdbarch_data (struct gdbarch *);
1129 static void free_gdbarch_data (struct gdbarch *);
1130 static void init_gdbarch_swap (struct gdbarch *);
1131 static void swapout_gdbarch_swap (struct gdbarch *);
1132 static void swapin_gdbarch_swap (struct gdbarch *);
1133
1134 /* Convenience macro for allocting typesafe memory. */
1135
1136 #ifndef XMALLOC
1137 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1138 #endif
1139
1140
1141 /* Non-zero if we want to trace architecture code.  */
1142
1143 #ifndef GDBARCH_DEBUG
1144 #define GDBARCH_DEBUG 0
1145 #endif
1146 int gdbarch_debug = GDBARCH_DEBUG;
1147
1148 EOF
1149
1150 # gdbarch open the gdbarch object
1151 printf "\n"
1152 printf "/* Maintain the struct gdbarch object */\n"
1153 printf "\n"
1154 printf "struct gdbarch\n"
1155 printf "{\n"
1156 printf "  /* basic architectural information */\n"
1157 function_list | while do_read
1158 do
1159     if class_is_info_p
1160     then
1161         printf "  ${returntype} ${function};\n"
1162     fi
1163 done
1164 printf "\n"
1165 printf "  /* target specific vector. */\n"
1166 printf "  struct gdbarch_tdep *tdep;\n"
1167 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1168 printf "\n"
1169 printf "  /* per-architecture data-pointers */\n"
1170 printf "  unsigned nr_data;\n"
1171 printf "  void **data;\n"
1172 printf "\n"
1173 printf "  /* per-architecture swap-regions */\n"
1174 printf "  struct gdbarch_swap *swap;\n"
1175 printf "\n"
1176 cat <<EOF
1177   /* Multi-arch values.
1178
1179      When extending this structure you must:
1180
1181      Add the field below.
1182
1183      Declare set/get functions and define the corresponding
1184      macro in gdbarch.h.
1185
1186      gdbarch_alloc(): If zero/NULL is not a suitable default,
1187      initialize the new field.
1188
1189      verify_gdbarch(): Confirm that the target updated the field
1190      correctly.
1191
1192      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1193      field is dumped out
1194
1195      \`\`startup_gdbarch()'': Append an initial value to the static
1196      variable (base values on the host's c-type system).
1197
1198      get_gdbarch(): Implement the set/get functions (probably using
1199      the macro's as shortcuts).
1200
1201      */
1202
1203 EOF
1204 function_list | while do_read
1205 do
1206     if class_is_variable_p
1207     then
1208         printf "  ${returntype} ${function};\n"
1209     elif class_is_function_p
1210     then
1211         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1212     fi
1213 done
1214 printf "};\n"
1215
1216 # A pre-initialized vector
1217 printf "\n"
1218 printf "\n"
1219 cat <<EOF
1220 /* The default architecture uses host values (for want of a better
1221    choice). */
1222 EOF
1223 printf "\n"
1224 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1225 printf "\n"
1226 printf "struct gdbarch startup_gdbarch =\n"
1227 printf "{\n"
1228 printf "  /* basic architecture information */\n"
1229 function_list | while do_read
1230 do
1231     if class_is_info_p
1232     then
1233         printf "  ${staticdefault},\n"
1234     fi
1235 done
1236 cat <<EOF
1237   /* target specific vector and its dump routine */
1238   NULL, NULL,
1239   /*per-architecture data-pointers and swap regions */
1240   0, NULL, NULL,
1241   /* Multi-arch values */
1242 EOF
1243 function_list | while do_read
1244 do
1245     if class_is_function_p || class_is_variable_p
1246     then
1247         printf "  ${staticdefault},\n"
1248     fi
1249 done
1250 cat <<EOF
1251   /* startup_gdbarch() */
1252 };
1253
1254 struct gdbarch *current_gdbarch = &startup_gdbarch;
1255 EOF
1256
1257 # Create a new gdbarch struct
1258 printf "\n"
1259 printf "\n"
1260 cat <<EOF
1261 /* Create a new \`\`struct gdbarch'' based on information provided by
1262    \`\`struct gdbarch_info''. */
1263 EOF
1264 printf "\n"
1265 cat <<EOF
1266 struct gdbarch *
1267 gdbarch_alloc (const struct gdbarch_info *info,
1268                struct gdbarch_tdep *tdep)
1269 {
1270   struct gdbarch *gdbarch = XMALLOC (struct gdbarch);
1271   memset (gdbarch, 0, sizeof (*gdbarch));
1272
1273   alloc_gdbarch_data (gdbarch);
1274
1275   gdbarch->tdep = tdep;
1276 EOF
1277 printf "\n"
1278 function_list | while do_read
1279 do
1280     if class_is_info_p
1281     then
1282         printf "  gdbarch->${function} = info->${function};\n"
1283     fi
1284 done
1285 printf "\n"
1286 printf "  /* Force the explicit initialization of these. */\n"
1287 function_list | while do_read
1288 do
1289     if class_is_function_p || class_is_variable_p
1290     then
1291         if [ "${predefault}" != "" -a "${predefault}" != "0" ]
1292         then
1293           printf "  gdbarch->${function} = ${predefault};\n"
1294         fi
1295     fi
1296 done
1297 cat <<EOF
1298   /* gdbarch_alloc() */
1299
1300   return gdbarch;
1301 }
1302 EOF
1303
1304 # Free a gdbarch struct.
1305 printf "\n"
1306 printf "\n"
1307 cat <<EOF
1308 /* Free a gdbarch struct.  This should never happen in normal
1309    operation --- once you've created a gdbarch, you keep it around.
1310    However, if an architecture's init function encounters an error
1311    building the structure, it may need to clean up a partially
1312    constructed gdbarch.  */
1313
1314 void
1315 gdbarch_free (struct gdbarch *arch)
1316 {
1317   gdb_assert (arch != NULL);
1318   free_gdbarch_data (arch);
1319   xfree (arch);
1320 }
1321 EOF
1322
1323 # verify a new architecture
1324 printf "\n"
1325 printf "\n"
1326 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1327 printf "\n"
1328 cat <<EOF
1329 static void
1330 verify_gdbarch (struct gdbarch *gdbarch)
1331 {
1332   /* Only perform sanity checks on a multi-arch target. */
1333   if (!GDB_MULTI_ARCH)
1334     return;
1335   /* fundamental */
1336   if (gdbarch->byte_order == 0)
1337     internal_error (__FILE__, __LINE__,
1338                     "verify_gdbarch: byte-order unset");
1339   if (gdbarch->bfd_arch_info == NULL)
1340     internal_error (__FILE__, __LINE__,
1341                     "verify_gdbarch: bfd_arch_info unset");
1342   /* Check those that need to be defined for the given multi-arch level. */
1343 EOF
1344 function_list | while do_read
1345 do
1346     if class_is_function_p || class_is_variable_p
1347     then
1348         if [ "${invalid_p}" = "0" ]
1349         then
1350             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1351         elif class_is_predicate_p
1352         then
1353             printf "  /* Skip verify of ${function}, has predicate */\n"
1354         # FIXME: See do_read for potential simplification
1355         elif [ "${invalid_p}" -a "${postdefault}" ]
1356         then
1357             printf "  if (${invalid_p})\n"
1358             printf "    gdbarch->${function} = ${postdefault};\n"
1359         elif [ "${predefault}" -a "${postdefault}" ]
1360         then
1361             printf "  if (gdbarch->${function} == ${predefault})\n"
1362             printf "    gdbarch->${function} = ${postdefault};\n"
1363         elif [ "${postdefault}" ]
1364         then
1365             printf "  if (gdbarch->${function} == 0)\n"
1366             printf "    gdbarch->${function} = ${postdefault};\n"
1367         elif [ "${invalid_p}" ]
1368         then
1369             printf "  if ((GDB_MULTI_ARCH >= ${level})\n"
1370             printf "      && (${invalid_p}))\n"
1371             printf "    internal_error (__FILE__, __LINE__,\n"
1372             printf "                    \"gdbarch: verify_gdbarch: ${function} invalid\");\n"
1373         elif [ "${predefault}" ]
1374         then
1375             printf "  if ((GDB_MULTI_ARCH >= ${level})\n"
1376             printf "      && (gdbarch->${function} == ${predefault}))\n"
1377             printf "    internal_error (__FILE__, __LINE__,\n"
1378             printf "                    \"gdbarch: verify_gdbarch: ${function} invalid\");\n"
1379         fi
1380     fi
1381 done
1382 cat <<EOF
1383 }
1384 EOF
1385
1386 # dump the structure
1387 printf "\n"
1388 printf "\n"
1389 cat <<EOF
1390 /* Print out the details of the current architecture. */
1391
1392 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1393    just happens to match the global variable \`\`current_gdbarch''.  That
1394    way macros refering to that variable get the local and not the global
1395    version - ulgh.  Once everything is parameterised with gdbarch, this
1396    will go away. */
1397
1398 void
1399 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1400 {
1401   fprintf_unfiltered (file,
1402                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1403                       GDB_MULTI_ARCH);
1404 EOF
1405 function_list | while do_read
1406 do
1407     # multiarch functions don't have macros.
1408     class_is_multiarch_p && continue
1409     if [ "${returntype}" = "void" ]
1410     then
1411         printf "#if defined (${macro}) && GDB_MULTI_ARCH\n"
1412         printf "  /* Macro might contain \`[{}]' when not multi-arch */\n"
1413     else
1414         printf "#ifdef ${macro}\n"
1415     fi
1416     if class_is_function_p
1417     then
1418         printf "  fprintf_unfiltered (file,\n"
1419         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1420         printf "                      \"${macro}(${actual})\",\n"
1421         printf "                      XSTRING (${macro} (${actual})));\n"
1422     else
1423         printf "  fprintf_unfiltered (file,\n"
1424         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1425         printf "                      XSTRING (${macro}));\n"
1426     fi
1427     printf "#endif\n"
1428 done
1429 function_list | while do_read
1430 do
1431     if class_is_multiarch_p
1432     then
1433         printf "  if (GDB_MULTI_ARCH)\n"
1434         printf "    fprintf_unfiltered (file,\n"
1435         printf "                        \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1436         printf "                        (long) current_gdbarch->${function});\n"
1437         continue
1438     fi
1439     printf "#ifdef ${macro}\n"
1440     if [ "${print_p}" = "()" ]
1441     then
1442         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1443     elif [ "${print_p}" = "0" ]
1444     then
1445         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1446     elif [ "${print_p}" ]
1447     then
1448         printf "  if (${print_p})\n"
1449         printf "    fprintf_unfiltered (file,\n"
1450         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1451         printf "                        ${print});\n"
1452     elif class_is_function_p
1453     then
1454         printf "  if (GDB_MULTI_ARCH)\n"
1455         printf "    fprintf_unfiltered (file,\n"
1456         printf "                        \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1457         printf "                        (long) current_gdbarch->${function}\n"
1458         printf "                        /*${macro} ()*/);\n"
1459     else
1460         printf "  fprintf_unfiltered (file,\n"
1461         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1462         printf "                      ${print});\n"
1463     fi
1464     printf "#endif\n"
1465 done
1466 cat <<EOF
1467   if (current_gdbarch->dump_tdep != NULL)
1468     current_gdbarch->dump_tdep (current_gdbarch, file);
1469 }
1470 EOF
1471
1472
1473 # GET/SET
1474 printf "\n"
1475 cat <<EOF
1476 struct gdbarch_tdep *
1477 gdbarch_tdep (struct gdbarch *gdbarch)
1478 {
1479   if (gdbarch_debug >= 2)
1480     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1481   return gdbarch->tdep;
1482 }
1483 EOF
1484 printf "\n"
1485 function_list | while do_read
1486 do
1487     if class_is_predicate_p
1488     then
1489         printf "\n"
1490         printf "int\n"
1491         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1492         printf "{\n"
1493         if [ "${valid_p}" ]
1494         then
1495             printf "  return ${valid_p};\n"
1496         else
1497             printf "#error \"gdbarch_${function}_p: not defined\"\n"
1498         fi
1499         printf "}\n"
1500     fi
1501     if class_is_function_p
1502     then
1503         printf "\n"
1504         printf "${returntype}\n"
1505         if [ "${formal}" = "void" ]
1506         then
1507           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1508         else
1509           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1510         fi
1511         printf "{\n"
1512         printf "  if (gdbarch->${function} == 0)\n"
1513         printf "    internal_error (__FILE__, __LINE__,\n"
1514         printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1515         printf "  if (gdbarch_debug >= 2)\n"
1516         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1517         if [ "${actual}" = "-" -o "${actual}" = "" ]
1518         then
1519             if class_is_multiarch_p
1520             then
1521                 params="gdbarch"
1522             else
1523                 params=""
1524             fi
1525         else
1526             if class_is_multiarch_p
1527             then
1528                 params="gdbarch, ${actual}"
1529             else
1530                 params="${actual}"
1531             fi
1532         fi
1533         if [ "${returntype}" = "void" ]
1534         then
1535           printf "  gdbarch->${function} (${params});\n"
1536         else
1537           printf "  return gdbarch->${function} (${params});\n"
1538         fi
1539         printf "}\n"
1540         printf "\n"
1541         printf "void\n"
1542         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1543         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1544         printf "{\n"
1545         printf "  gdbarch->${function} = ${function};\n"
1546         printf "}\n"
1547     elif class_is_variable_p
1548     then
1549         printf "\n"
1550         printf "${returntype}\n"
1551         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1552         printf "{\n"
1553         if [ "${invalid_p}" = "0" ]
1554         then
1555             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1556         elif [ "${invalid_p}" ]
1557         then
1558           printf "  if (${invalid_p})\n"
1559           printf "    internal_error (__FILE__, __LINE__,\n"
1560           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1561         elif [ "${predefault}" ]
1562         then
1563           printf "  if (gdbarch->${function} == ${predefault})\n"
1564           printf "    internal_error (__FILE__, __LINE__,\n"
1565           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1566         fi
1567         printf "  if (gdbarch_debug >= 2)\n"
1568         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1569         printf "  return gdbarch->${function};\n"
1570         printf "}\n"
1571         printf "\n"
1572         printf "void\n"
1573         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1574         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1575         printf "{\n"
1576         printf "  gdbarch->${function} = ${function};\n"
1577         printf "}\n"
1578     elif class_is_info_p
1579     then
1580         printf "\n"
1581         printf "${returntype}\n"
1582         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1583         printf "{\n"
1584         printf "  if (gdbarch_debug >= 2)\n"
1585         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1586         printf "  return gdbarch->${function};\n"
1587         printf "}\n"
1588     fi
1589 done
1590
1591 # All the trailing guff
1592 cat <<EOF
1593
1594
1595 /* Keep a registry of per-architecture data-pointers required by GDB
1596    modules. */
1597
1598 struct gdbarch_data
1599 {
1600   unsigned index;
1601   gdbarch_data_init_ftype *init;
1602   gdbarch_data_free_ftype *free;
1603 };
1604
1605 struct gdbarch_data_registration
1606 {
1607   struct gdbarch_data *data;
1608   struct gdbarch_data_registration *next;
1609 };
1610
1611 struct gdbarch_data_registry
1612 {
1613   unsigned nr;
1614   struct gdbarch_data_registration *registrations;
1615 };
1616
1617 struct gdbarch_data_registry gdbarch_data_registry =
1618 {
1619   0, NULL,
1620 };
1621
1622 struct gdbarch_data *
1623 register_gdbarch_data (gdbarch_data_init_ftype *init,
1624                        gdbarch_data_free_ftype *free)
1625 {
1626   struct gdbarch_data_registration **curr;
1627   for (curr = &gdbarch_data_registry.registrations;
1628        (*curr) != NULL;
1629        curr = &(*curr)->next);
1630   (*curr) = XMALLOC (struct gdbarch_data_registration);
1631   (*curr)->next = NULL;
1632   (*curr)->data = XMALLOC (struct gdbarch_data);
1633   (*curr)->data->index = gdbarch_data_registry.nr++;
1634   (*curr)->data->init = init;
1635   (*curr)->data->free = free;
1636   return (*curr)->data;
1637 }
1638
1639
1640 /* Walk through all the registered users initializing each in turn. */
1641
1642 static void
1643 init_gdbarch_data (struct gdbarch *gdbarch)
1644 {
1645   struct gdbarch_data_registration *rego;
1646   for (rego = gdbarch_data_registry.registrations;
1647        rego != NULL;
1648        rego = rego->next)
1649     {
1650       struct gdbarch_data *data = rego->data;
1651       gdb_assert (data->index < gdbarch->nr_data);
1652       if (data->init != NULL)
1653         {
1654           void *pointer = data->init (gdbarch);
1655           set_gdbarch_data (gdbarch, data, pointer);
1656         }
1657     }
1658 }
1659
1660 /* Create/delete the gdbarch data vector. */
1661
1662 static void
1663 alloc_gdbarch_data (struct gdbarch *gdbarch)
1664 {
1665   gdb_assert (gdbarch->data == NULL);
1666   gdbarch->nr_data = gdbarch_data_registry.nr;
1667   gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1668 }
1669
1670 static void
1671 free_gdbarch_data (struct gdbarch *gdbarch)
1672 {
1673   struct gdbarch_data_registration *rego;
1674   gdb_assert (gdbarch->data != NULL);
1675   for (rego = gdbarch_data_registry.registrations;
1676        rego != NULL;
1677        rego = rego->next)
1678     {
1679       struct gdbarch_data *data = rego->data;
1680       gdb_assert (data->index < gdbarch->nr_data);
1681       if (data->free != NULL && gdbarch->data[data->index] != NULL)
1682         {
1683           data->free (gdbarch, gdbarch->data[data->index]);
1684           gdbarch->data[data->index] = NULL;
1685         }
1686     }
1687   xfree (gdbarch->data);
1688   gdbarch->data = NULL;
1689 }
1690
1691
1692 /* Initialize the current value of thee specified per-architecture
1693    data-pointer. */
1694
1695 void
1696 set_gdbarch_data (struct gdbarch *gdbarch,
1697                   struct gdbarch_data *data,
1698                   void *pointer)
1699 {
1700   gdb_assert (data->index < gdbarch->nr_data);
1701   if (data->free != NULL && gdbarch->data[data->index] != NULL)
1702     data->free (gdbarch, gdbarch->data[data->index]);
1703   gdbarch->data[data->index] = pointer;
1704 }
1705
1706 /* Return the current value of the specified per-architecture
1707    data-pointer. */
1708
1709 void *
1710 gdbarch_data (struct gdbarch_data *data)
1711 {
1712   gdb_assert (data->index < current_gdbarch->nr_data);
1713   return current_gdbarch->data[data->index];
1714 }
1715
1716
1717
1718 /* Keep a registry of swapped data required by GDB modules. */
1719
1720 struct gdbarch_swap
1721 {
1722   void *swap;
1723   struct gdbarch_swap_registration *source;
1724   struct gdbarch_swap *next;
1725 };
1726
1727 struct gdbarch_swap_registration
1728 {
1729   void *data;
1730   unsigned long sizeof_data;
1731   gdbarch_swap_ftype *init;
1732   struct gdbarch_swap_registration *next;
1733 };
1734
1735 struct gdbarch_swap_registry
1736 {
1737   int nr;
1738   struct gdbarch_swap_registration *registrations;
1739 };
1740
1741 struct gdbarch_swap_registry gdbarch_swap_registry =
1742 {
1743   0, NULL,
1744 };
1745
1746 void
1747 register_gdbarch_swap (void *data,
1748                        unsigned long sizeof_data,
1749                        gdbarch_swap_ftype *init)
1750 {
1751   struct gdbarch_swap_registration **rego;
1752   for (rego = &gdbarch_swap_registry.registrations;
1753        (*rego) != NULL;
1754        rego = &(*rego)->next);
1755   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1756   (*rego)->next = NULL;
1757   (*rego)->init = init;
1758   (*rego)->data = data;
1759   (*rego)->sizeof_data = sizeof_data;
1760 }
1761
1762
1763 static void
1764 init_gdbarch_swap (struct gdbarch *gdbarch)
1765 {
1766   struct gdbarch_swap_registration *rego;
1767   struct gdbarch_swap **curr = &gdbarch->swap;
1768   for (rego = gdbarch_swap_registry.registrations;
1769        rego != NULL;
1770        rego = rego->next)
1771     {
1772       if (rego->data != NULL)
1773         {
1774           (*curr) = XMALLOC (struct gdbarch_swap);
1775           (*curr)->source = rego;
1776           (*curr)->swap = xmalloc (rego->sizeof_data);
1777           (*curr)->next = NULL;
1778           memset (rego->data, 0, rego->sizeof_data);
1779           curr = &(*curr)->next;
1780         }
1781       if (rego->init != NULL)
1782         rego->init ();
1783     }
1784 }
1785
1786 static void
1787 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1788 {
1789   struct gdbarch_swap *curr;
1790   for (curr = gdbarch->swap;
1791        curr != NULL;
1792        curr = curr->next)
1793     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1794 }
1795
1796 static void
1797 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1798 {
1799   struct gdbarch_swap *curr;
1800   for (curr = gdbarch->swap;
1801        curr != NULL;
1802        curr = curr->next)
1803     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1804 }
1805
1806
1807 /* Keep a registry of the architectures known by GDB. */
1808
1809 struct gdbarch_registration
1810 {
1811   enum bfd_architecture bfd_architecture;
1812   gdbarch_init_ftype *init;
1813   gdbarch_dump_tdep_ftype *dump_tdep;
1814   struct gdbarch_list *arches;
1815   struct gdbarch_registration *next;
1816 };
1817
1818 static struct gdbarch_registration *gdbarch_registry = NULL;
1819
1820 static void
1821 append_name (const char ***buf, int *nr, const char *name)
1822 {
1823   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1824   (*buf)[*nr] = name;
1825   *nr += 1;
1826 }
1827
1828 const char **
1829 gdbarch_printable_names (void)
1830 {
1831   if (GDB_MULTI_ARCH)
1832     {
1833       /* Accumulate a list of names based on the registed list of
1834          architectures. */
1835       enum bfd_architecture a;
1836       int nr_arches = 0;
1837       const char **arches = NULL;
1838       struct gdbarch_registration *rego;
1839       for (rego = gdbarch_registry;
1840            rego != NULL;
1841            rego = rego->next)
1842         {
1843           const struct bfd_arch_info *ap;
1844           ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1845           if (ap == NULL)
1846             internal_error (__FILE__, __LINE__,
1847                             "gdbarch_architecture_names: multi-arch unknown");
1848           do
1849             {
1850               append_name (&arches, &nr_arches, ap->printable_name);
1851               ap = ap->next;
1852             }
1853           while (ap != NULL);
1854         }
1855       append_name (&arches, &nr_arches, NULL);
1856       return arches;
1857     }
1858   else
1859     /* Just return all the architectures that BFD knows.  Assume that
1860        the legacy architecture framework supports them. */
1861     return bfd_arch_list ();
1862 }
1863
1864
1865 void
1866 gdbarch_register (enum bfd_architecture bfd_architecture,
1867                   gdbarch_init_ftype *init,
1868                   gdbarch_dump_tdep_ftype *dump_tdep)
1869 {
1870   struct gdbarch_registration **curr;
1871   const struct bfd_arch_info *bfd_arch_info;
1872   /* Check that BFD recognizes this architecture */
1873   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1874   if (bfd_arch_info == NULL)
1875     {
1876       internal_error (__FILE__, __LINE__,
1877                       "gdbarch: Attempt to register unknown architecture (%d)",
1878                       bfd_architecture);
1879     }
1880   /* Check that we haven't seen this architecture before */
1881   for (curr = &gdbarch_registry;
1882        (*curr) != NULL;
1883        curr = &(*curr)->next)
1884     {
1885       if (bfd_architecture == (*curr)->bfd_architecture)
1886         internal_error (__FILE__, __LINE__,
1887                         "gdbarch: Duplicate registraration of architecture (%s)",
1888                         bfd_arch_info->printable_name);
1889     }
1890   /* log it */
1891   if (gdbarch_debug)
1892     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1893                         bfd_arch_info->printable_name,
1894                         (long) init);
1895   /* Append it */
1896   (*curr) = XMALLOC (struct gdbarch_registration);
1897   (*curr)->bfd_architecture = bfd_architecture;
1898   (*curr)->init = init;
1899   (*curr)->dump_tdep = dump_tdep;
1900   (*curr)->arches = NULL;
1901   (*curr)->next = NULL;
1902   /* When non- multi-arch, install whatever target dump routine we've
1903      been provided - hopefully that routine has been written correctly
1904      and works regardless of multi-arch. */
1905   if (!GDB_MULTI_ARCH && dump_tdep != NULL
1906       && startup_gdbarch.dump_tdep == NULL)
1907     startup_gdbarch.dump_tdep = dump_tdep;
1908 }
1909
1910 void
1911 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1912                        gdbarch_init_ftype *init)
1913 {
1914   gdbarch_register (bfd_architecture, init, NULL);
1915 }
1916
1917
1918 /* Look for an architecture using gdbarch_info.  Base search on only
1919    BFD_ARCH_INFO and BYTE_ORDER. */
1920
1921 struct gdbarch_list *
1922 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1923                              const struct gdbarch_info *info)
1924 {
1925   for (; arches != NULL; arches = arches->next)
1926     {
1927       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1928         continue;
1929       if (info->byte_order != arches->gdbarch->byte_order)
1930         continue;
1931       return arches;
1932     }
1933   return NULL;
1934 }
1935
1936
1937 /* Update the current architecture. Return ZERO if the update request
1938    failed. */
1939
1940 int
1941 gdbarch_update_p (struct gdbarch_info info)
1942 {
1943   struct gdbarch *new_gdbarch;
1944   struct gdbarch_list **list;
1945   struct gdbarch_registration *rego;
1946
1947   /* Fill in any missing bits. Most important is the bfd_architecture
1948      which is used to select the target architecture. */
1949   if (info.bfd_architecture == bfd_arch_unknown)
1950     {
1951       if (info.bfd_arch_info != NULL)
1952         info.bfd_architecture = info.bfd_arch_info->arch;
1953       else if (info.abfd != NULL)
1954         info.bfd_architecture = bfd_get_arch (info.abfd);
1955       /* FIXME - should query BFD for its default architecture. */
1956       else
1957         info.bfd_architecture = current_gdbarch->bfd_arch_info->arch;
1958     }
1959   if (info.bfd_arch_info == NULL)
1960     {
1961       if (target_architecture_auto && info.abfd != NULL)
1962         info.bfd_arch_info = bfd_get_arch_info (info.abfd);
1963       else
1964         info.bfd_arch_info = current_gdbarch->bfd_arch_info;
1965     }
1966   if (info.byte_order == 0)
1967     {
1968       if (target_byte_order_auto && info.abfd != NULL)
1969         info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
1970                            : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN
1971                            : 0);
1972       else
1973         info.byte_order = current_gdbarch->byte_order;
1974       /* FIXME - should query BFD for its default byte-order. */
1975     }
1976   /* A default for abfd? */
1977
1978   /* Find the target that knows about this architecture. */
1979   for (rego = gdbarch_registry;
1980        rego != NULL;
1981        rego = rego->next)
1982     if (rego->bfd_architecture == info.bfd_architecture)
1983       break;
1984   if (rego == NULL)
1985     {
1986       if (gdbarch_debug)
1987         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
1988       return 0;
1989     }
1990
1991   if (gdbarch_debug)
1992     {
1993       fprintf_unfiltered (gdb_stdlog,
1994                           "gdbarch_update: info.bfd_architecture %d (%s)\\n",
1995                           info.bfd_architecture,
1996                           bfd_lookup_arch (info.bfd_architecture, 0)->printable_name);
1997       fprintf_unfiltered (gdb_stdlog,
1998                           "gdbarch_update: info.bfd_arch_info %s\\n",
1999                           (info.bfd_arch_info != NULL
2000                            ? info.bfd_arch_info->printable_name
2001                            : "(null)"));
2002       fprintf_unfiltered (gdb_stdlog,
2003                           "gdbarch_update: info.byte_order %d (%s)\\n",
2004                           info.byte_order,
2005                           (info.byte_order == BIG_ENDIAN ? "big"
2006                            : info.byte_order == LITTLE_ENDIAN ? "little"
2007                            : "default"));
2008       fprintf_unfiltered (gdb_stdlog,
2009                           "gdbarch_update: info.abfd 0x%lx\\n",
2010                           (long) info.abfd);
2011       fprintf_unfiltered (gdb_stdlog,
2012                           "gdbarch_update: info.tdep_info 0x%lx\\n",
2013                           (long) info.tdep_info);
2014     }
2015
2016   /* Ask the target for a replacement architecture. */
2017   new_gdbarch = rego->init (info, rego->arches);
2018
2019   /* Did the target like it?  No. Reject the change. */
2020   if (new_gdbarch == NULL)
2021     {
2022       if (gdbarch_debug)
2023         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2024       return 0;
2025     }
2026
2027   /* Did the architecture change?  No. Do nothing. */
2028   if (current_gdbarch == new_gdbarch)
2029     {
2030       if (gdbarch_debug)
2031         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2032                             (long) new_gdbarch,
2033                             new_gdbarch->bfd_arch_info->printable_name);
2034       return 1;
2035     }
2036
2037   /* Swap all data belonging to the old target out */
2038   swapout_gdbarch_swap (current_gdbarch);
2039
2040   /* Is this a pre-existing architecture?  Yes. Swap it in.  */
2041   for (list = &rego->arches;
2042        (*list) != NULL;
2043        list = &(*list)->next)
2044     {
2045       if ((*list)->gdbarch == new_gdbarch)
2046         {
2047           if (gdbarch_debug)
2048             fprintf_unfiltered (gdb_stdlog,
2049                                 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2050                                 (long) new_gdbarch,
2051                                 new_gdbarch->bfd_arch_info->printable_name);
2052           current_gdbarch = new_gdbarch;
2053           swapin_gdbarch_swap (new_gdbarch);
2054           return 1;
2055         }
2056     }
2057
2058   /* Append this new architecture to this targets list. */
2059   (*list) = XMALLOC (struct gdbarch_list);
2060   (*list)->next = NULL;
2061   (*list)->gdbarch = new_gdbarch;
2062
2063   /* Switch to this new architecture.  Dump it out. */
2064   current_gdbarch = new_gdbarch;
2065   if (gdbarch_debug)
2066     {
2067       fprintf_unfiltered (gdb_stdlog,
2068                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2069                           (long) new_gdbarch,
2070                           new_gdbarch->bfd_arch_info->printable_name);
2071     }
2072
2073   /* Check that the newly installed architecture is valid.  Plug in
2074      any post init values.  */
2075   new_gdbarch->dump_tdep = rego->dump_tdep;
2076   verify_gdbarch (new_gdbarch);
2077
2078   /* Initialize the per-architecture memory (swap) areas.
2079      CURRENT_GDBARCH must be update before these modules are
2080      called. */
2081   init_gdbarch_swap (new_gdbarch);
2082
2083   /* Initialize the per-architecture data-pointer of all parties that
2084      registered an interest in this architecture.  CURRENT_GDBARCH
2085      must be updated before these modules are called. */
2086   init_gdbarch_data (new_gdbarch);
2087
2088   if (gdbarch_debug)
2089     gdbarch_dump (current_gdbarch, gdb_stdlog);
2090
2091   return 1;
2092 }
2093
2094
2095 /* Disassembler */
2096
2097 /* Pointer to the target-dependent disassembly function.  */
2098 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2099 disassemble_info tm_print_insn_info;
2100
2101
2102 extern void _initialize_gdbarch (void);
2103
2104 void
2105 _initialize_gdbarch (void)
2106 {
2107   struct cmd_list_element *c;
2108
2109   INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2110   tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2111   tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2112   tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2113   tm_print_insn_info.print_address_func = dis_asm_print_address;
2114
2115   add_show_from_set (add_set_cmd ("arch",
2116                                   class_maintenance,
2117                                   var_zinteger,
2118                                   (char *)&gdbarch_debug,
2119                                   "Set architecture debugging.\\n\\
2120 When non-zero, architecture debugging is enabled.", &setdebuglist),
2121                      &showdebuglist);
2122   c = add_set_cmd ("archdebug",
2123                    class_maintenance,
2124                    var_zinteger,
2125                    (char *)&gdbarch_debug,
2126                    "Set architecture debugging.\\n\\
2127 When non-zero, architecture debugging is enabled.", &setlist);
2128
2129   deprecate_cmd (c, "set debug arch");
2130   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2131 }
2132 EOF
2133
2134 # close things off
2135 exec 1>&2
2136 #../move-if-change new-gdbarch.c gdbarch.c
2137 compare_new gdbarch.c