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 [ -n "${predefault}" ]
  89                     then
  90                         #invalid_p="gdbarch->${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 [ -n "${postdefault}" ]
 108             then
 109                 fallbackdefault="${postdefault}"
 110             elif [ -n "${predefault}" ]
 111             then
 112                 fallbackdefault="${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 [ -n "${class}" ]
 124     then
 125         true
 126     else
 127         false
 128     fi
 129 }
 130
 131
 132 fallback_default_p ()
 133 {
 134     [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
 135         || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
 136 }
 137
 138 class_is_variable_p ()
 139 {
 140     case "${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         # An initial value to assign to MEMBER of the freshly
 252         # malloc()ed gdbarch object.  After initialization, the
 253         # freshly malloc()ed object is passed to the target
 254         # architecture code for further updates.
 255
 256         # If PREDEFAULT is empty, zero is used.
 257
 258         # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
 259         # INVALID_P are specified, PREDEFAULT will be used as the
 260         # default for the non- multi-arch target.
 261
 262         # A zero PREDEFAULT function will force the fallback to call
 263         # internal_error().
 264
 265         # Variable declarations can refer to ``gdbarch'' which will
 266         # contain the current architecture.  Care should be taken.
 267
 268     postdefault ) : ;;
 269
 270         # A value to assign to MEMBER of the new gdbarch object should
 271         # the target architecture code fail to change the PREDEFAULT
 272         # value.
 273
 274         # If POSTDEFAULT is empty, no post update is performed.
 275
 276         # If both INVALID_P and POSTDEFAULT are non-empty then
 277         # INVALID_P will be used to determine if MEMBER should be
 278         # changed to POSTDEFAULT.
 279
 280         # If a non-empty POSTDEFAULT and a zero INVALID_P are
 281         # specified, POSTDEFAULT will be used as the default for the
 282         # non- multi-arch target (regardless of the value of
 283         # PREDEFAULT).
 284
 285         # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
 286
 287         # Variable declarations can refer to ``gdbarch'' which will
 288         # contain the current architecture.  Care should be taken.
 289
 290     invalid_p ) : ;;
 291
 292         # A predicate equation that validates MEMBER.  Non-zero is
 293         # returned if the code creating the new architecture failed to
 294         # initialize MEMBER or the initialized the member is invalid.
 295         # If POSTDEFAULT is non-empty then MEMBER will be updated to
 296         # that value.  If POSTDEFAULT is empty then internal_error()
 297         # is called.
 298
 299         # If INVALID_P is empty, a check that MEMBER is no longer
 300         # equal to PREDEFAULT is used.
 301
 302         # The expression ``0'' disables the INVALID_P check making
 303         # PREDEFAULT a legitimate value.
 304
 305         # See also PREDEFAULT and POSTDEFAULT.
 306
 307     fmt ) : ;;
 308
 309         # printf style format string that can be used to print out the
 310         # MEMBER.  Sometimes "%s" is useful.  For functions, this is
 311         # ignored and the function address is printed.
 312
 313         # If FMT is empty, ``%ld'' is used.
 314
 315     print ) : ;;
 316
 317         # An optional equation that casts MEMBER to a value suitable
 318         # for formatting by FMT.
 319
 320         # If PRINT is empty, ``(long)'' is used.
 321
 322     print_p ) : ;;
 323
 324         # An optional indicator for any predicte to wrap around the
 325         # print member code.
 326
 327         #   () -> Call a custom function to do the dump.
 328         #   exp -> Wrap print up in ``if (${print_p}) ...
 329         #   ``'' -> No predicate
 330
 331         # If PRINT_P is empty, ``1'' is always used.
 332
 333     description ) : ;;
 334
 335         # Currently unused.
 336
 337     *) exit 1;;
 338   esac
 339 done
 340
 341
 342 function_list ()
 343 {
 344   # See below (DOCO) for description of each field
 345   cat <<EOF
 346 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
 347 #
 348 i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN
 349 # Number of bits in a char or unsigned char for the target machine.
 350 # Just like CHAR_BIT in <limits.h> but describes the target machine.
 351 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
 352 #
 353 # Number of bits in a short or unsigned short for the target machine.
 354 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
 355 # Number of bits in an int or unsigned int for the target machine.
 356 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
 357 # Number of bits in a long or unsigned long for the target machine.
 358 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
 359 # Number of bits in a long long or unsigned long long for the target
 360 # machine.
 361 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
 362 # Number of bits in a float for the target machine.
 363 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
 364 # Number of bits in a double for the target machine.
 365 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
 366 # Number of bits in a long double for the target machine.
 367 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0
 368 # For most targets, a pointer on the target and its representation as an
 369 # address in GDB have the same size and "look the same".  For such a
 370 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
 371 # / addr_bit will be set from it.
 372 #
 373 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
 374 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
 375 #
 376 # ptr_bit is the size of a pointer on the target
 377 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
 378 # addr_bit is the size of a target address as represented in gdb
 379 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
 380 # Number of bits in a BFD_VMA for the target object file format.
 381 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
 382 #
 383 v::IEEE_FLOAT:int:ieee_float::::0:0::0:::
 384 #
 385 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
 386 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
 387 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
 388 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
 389 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
 390 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
 391 # Function for getting target's idea of a frame pointer.  FIXME: GDB's
 392 # whole scheme for dealing with "frames" and "frame pointers" needs a
 393 # serious shakedown.
 394 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
 395 #
 396 M:::void:register_read:int regnum, char *buf:regnum, buf:
 397 M:::void:register_write:int regnum, char *buf:regnum, buf:
 398 #
 399 v:2:NUM_REGS:int:num_regs::::0:-1
 400 # This macro gives the number of pseudo-registers that live in the
 401 # register namespace but do not get fetched or stored on the target.
 402 # These pseudo-registers may be aliases for other registers,
 403 # combinations of other registers, or they may be computed by GDB.
 404 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
 405 v:2:SP_REGNUM:int:sp_regnum::::0:-1
 406 v:2:FP_REGNUM:int:fp_regnum::::0:-1
 407 v:2:PC_REGNUM:int:pc_regnum::::0:-1
 408 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
 409 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
 410 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
 411 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
 412 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
 413 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
 414 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
 415 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
 416 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
 417 # Convert from an sdb register number to an internal gdb register number.
 418 # This should be defined in tm.h, if REGISTER_NAMES is not set up
 419 # to map one to one onto the sdb register numbers.
 420 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
 421 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
 422 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
 423 v:2:REGISTER_SIZE:int:register_size::::0:-1
 424 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
 425 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
 426 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0
 427 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
 428 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0
 429 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
 430 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
 431 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
 432 # MAP a GDB RAW register number onto a simulator register number.  See
 433 # also include/...-sim.h.
 434 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
 435 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
 436 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
 437 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
 438 #
 439 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
 440 v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
 441 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
 442 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
 443 v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1:::0x%08lx::CALL_DUMMY_BREAKPOINT_OFFSET_P
 444 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
 445 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
 446 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
 447 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
 448 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
 449 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
 450 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
 451 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
 452 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
 453 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
 454 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
 455 #
 456 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
 457 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
 458 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
 459 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
 460 #
 461 f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
 462 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
 463 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
 464 # This function is called when the value of a pseudo-register needs to
 465 # be updated.  Typically it will be defined on a per-architecture
 466 # basis.
 467 f:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:::0::0
 468 # This function is called when the value of a pseudo-register needs to
 469 # be set or stored.  Typically it will be defined on a
 470 # per-architecture basis.
 471 f:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:::0::0
 472 #
 473 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
 474 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
 475 #
 476 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
 477 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
 478 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
 479 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
 480 f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
 481 f:2:POP_FRAME:void:pop_frame:void:-:::0
 482 #
 483 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
 484 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
 485 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
 486 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::0
 487 #
 488 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
 489 f:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
 490 #
 491 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
 492 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
 493 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
 494 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
 495 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
 496 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
 497 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
 498 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
 499 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
 500 #
 501 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
 502 #
 503 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 504 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 505 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
 506 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
 507 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
 508 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
 509 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
 510 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
 511 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
 512 #
 513 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
 514 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
 515 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
 516 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
 517 v:2:PARM_BOUNDARY:int:parm_boundary
 518 #
 519 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
 520 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
 521 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown
 522 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
 523 # On some machines there are bits in addresses which are not really
 524 # part of the address, but are used by the kernel, the hardware, etc.
 525 # for special purposes.  ADDR_BITS_REMOVE takes out any such bits so
 526 # we get a "real" address such as one would find in a symbol table.
 527 # This is used only for addresses of instructions, and even then I'm
 528 # not sure it's used in all contexts.  It exists to deal with there
 529 # being a few stray bits in the PC which would mislead us, not as some
 530 # sort of generic thing to handle alignment or segmentation (it's
 531 # possible it should be in TARGET_READ_PC instead).
 532 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
 533 # FIXME/cagney/2001-01-18: This should be split in two.  A target method that indicates if
 534 # the target needs software single step.  An ISA method to implement it.
 535 #
 536 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
 537 # using the breakpoint system instead of blatting memory directly (as with rs6000).
 538 #
 539 # FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the target can
 540 # single step.  If not, then implement single step using breakpoints.
 541 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
 542 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
 543 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
 544 EOF
 545 }
 546
 547 #
 548 # The .log file
 549 #
 550 exec > new-gdbarch.log
 551 function_list | while do_read
 552 do
 553     cat <<EOF
 554 ${class} ${macro}(${actual})
 555   ${returntype} ${function} ($formal)${attrib}
 556 EOF
 557     for r in ${read}
 558     do
 559         eval echo \"\ \ \ \ ${r}=\${${r}}\"
 560     done
 561 #    #fallbackdefault=${fallbackdefault}
 562 #    #valid_p=${valid_p}
 563 #EOF
 564     if class_is_predicate_p && fallback_default_p
 565     then
 566         echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
 567         kill $$
 568         exit 1
 569     fi
 570     if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
 571     then
 572         echo "Error: postdefault is useless when invalid_p=0" 1>&2
 573         kill $$
 574         exit 1
 575     fi
 576     echo ""
 577 done
 578
 579 exec 1>&2
 580 compare_new gdbarch.log
 581
 582
 583 copyright ()
 584 {
 585 cat <<EOF
 586 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
 587
 588 /* Dynamic architecture support for GDB, the GNU debugger.
 589    Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
 590
 591    This file is part of GDB.
 592
 593    This program is free software; you can redistribute it and/or modify
 594    it under the terms of the GNU General Public License as published by
 595    the Free Software Foundation; either version 2 of the License, or
 596    (at your option) any later version.
 597
 598    This program is distributed in the hope that it will be useful,
 599    but WITHOUT ANY WARRANTY; without even the implied warranty of
 600    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 601    GNU General Public License for more details.
 602
 603    You should have received a copy of the GNU General Public License
 604    along with this program; if not, write to the Free Software
 605    Foundation, Inc., 59 Temple Place - Suite 330,
 606    Boston, MA 02111-1307, USA.  */
 607
 608 /* This file was created with the aid of \`\`gdbarch.sh''.
 609
 610    The Bourne shell script \`\`gdbarch.sh'' creates the files
 611    \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
 612    against the existing \`\`gdbarch.[hc]''.  Any differences found
 613    being reported.
 614
 615    If editing this file, please also run gdbarch.sh and merge any
 616    changes into that script. Conversely, when making sweeping changes
 617    to this file, modifying gdbarch.sh and using its output may prove
 618    easier. */
 619
 620 EOF
 621 }
 622
 623 #
 624 # The .h file
 625 #
 626
 627 exec > new-gdbarch.h
 628 copyright
 629 cat <<EOF
 630 #ifndef GDBARCH_H
 631 #define GDBARCH_H
 632
 633 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
 634
 635 struct frame_info;
 636 struct value;
 637
 638
 639 extern struct gdbarch *current_gdbarch;
 640
 641
 642 /* If any of the following are defined, the target wasn't correctly
 643    converted. */
 644
 645 #if GDB_MULTI_ARCH
 646 #if defined (EXTRA_FRAME_INFO)
 647 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
 648 #endif
 649 #endif
 650
 651 #if GDB_MULTI_ARCH
 652 #if defined (FRAME_FIND_SAVED_REGS)
 653 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
 654 #endif
 655 #endif
 656
 657 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
 658 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
 659 #endif
 660 EOF
 661
 662 # function typedef's
 663 printf "\n"
 664 printf "\n"
 665 printf "/* The following are pre-initialized by GDBARCH. */\n"
 666 function_list | while do_read
 667 do
 668     if class_is_info_p
 669     then
 670         printf "\n"
 671         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 672         printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
 673         printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 674         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 675         printf "#endif\n"
 676         printf "#if GDB_MULTI_ARCH\n"
 677         printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
 678         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 679         printf "#endif\n"
 680         printf "#endif\n"
 681     fi
 682 done
 683
 684 # function typedef's
 685 printf "\n"
 686 printf "\n"
 687 printf "/* The following are initialized by the target dependent code. */\n"
 688 function_list | while do_read
 689 do
 690     if [ -n "${comment}" ]
 691     then
 692         echo "${comment}" | sed \
 693             -e '2 s,#,/*,' \
 694             -e '3,$ s,#,  ,' \
 695             -e '$ s,$, */,'
 696     fi
 697     if class_is_multiarch_p
 698     then
 699         if class_is_predicate_p
 700         then
 701             printf "\n"
 702             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 703         fi
 704     else
 705         if class_is_predicate_p
 706         then
 707             printf "\n"
 708             printf "#if defined (${macro})\n"
 709             printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
 710             #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 711             printf "#if !defined (${macro}_P)\n"
 712             printf "#define ${macro}_P() (1)\n"
 713             printf "#endif\n"
 714             printf "#endif\n"
 715             printf "\n"
 716             printf "/* Default predicate for non- multi-arch targets. */\n"
 717             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
 718             printf "#define ${macro}_P() (0)\n"
 719             printf "#endif\n"
 720             printf "\n"
 721             printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
 722             printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro}_P)\n"
 723             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 724             printf "#endif\n"
 725             printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
 726             printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
 727             printf "#endif\n"
 728         fi
 729     fi
 730     if class_is_variable_p
 731     then
 732         if fallback_default_p || class_is_predicate_p
 733         then
 734             printf "\n"
 735             printf "/* Default (value) for non- multi-arch platforms. */\n"
 736             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 737             echo "#define ${macro} (${fallbackdefault})" \
 738                 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 739             printf "#endif\n"
 740         fi
 741         printf "\n"
 742         printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 743         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
 744         printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 745         printf "#error \"Non multi-arch definition of ${macro}\"\n"
 746         printf "#endif\n"
 747         printf "#if GDB_MULTI_ARCH\n"
 748         printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
 749         printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 750         printf "#endif\n"
 751         printf "#endif\n"
 752     fi
 753     if class_is_function_p
 754     then
 755         if class_is_multiarch_p ; then :
 756         elif fallback_default_p || class_is_predicate_p
 757         then
 758             printf "\n"
 759             printf "/* Default (function) for non- multi-arch platforms. */\n"
 760             printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
 761             if [ "x${fallbackdefault}" = "x0" ]
 762             then
 763                 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
 764             else
 765                 # FIXME: Should be passing current_gdbarch through!
 766                 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
 767                     | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
 768             fi
 769             printf "#endif\n"
 770         fi
 771         printf "\n"
 772         if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
 773         then
 774             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
 775         elif class_is_multiarch_p
 776         then
 777             printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
 778         else
 779             printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
 780         fi
 781         if [ "x${formal}" = "xvoid" ]
 782         then
 783           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
 784         else
 785           printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
 786         fi
 787         printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
 788         if class_is_multiarch_p ; then :
 789         else
 790             printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
 791             printf "#error \"Non multi-arch definition of ${macro}\"\n"
 792             printf "#endif\n"
 793             printf "#if GDB_MULTI_ARCH\n"
 794             printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
 795             if [ "x${actual}" = "x" ]
 796             then
 797                 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
 798             elif [ "x${actual}" = "x-" ]
 799             then
 800                 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
 801             else
 802                 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
 803             fi
 804             printf "#endif\n"
 805             printf "#endif\n"
 806         fi
 807     fi
 808 done
 809
 810 # close it off
 811 cat <<EOF
 812
 813 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 814
 815
 816 /* Mechanism for co-ordinating the selection of a specific
 817    architecture.
 818
 819    GDB targets (*-tdep.c) can register an interest in a specific
 820    architecture.  Other GDB components can register a need to maintain
 821    per-architecture data.
 822
 823    The mechanisms below ensures that there is only a loose connection
 824    between the set-architecture command and the various GDB
 825    components.  Each component can independently register their need
 826    to maintain architecture specific data with gdbarch.
 827
 828    Pragmatics:
 829
 830    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 831    didn't scale.
 832
 833    The more traditional mega-struct containing architecture specific
 834    data for all the various GDB components was also considered.  Since
 835    GDB is built from a variable number of (fairly independent)
 836    components it was determined that the global aproach was not
 837    applicable. */
 838
 839
 840 /* Register a new architectural family with GDB.
 841
 842    Register support for the specified ARCHITECTURE with GDB.  When
 843    gdbarch determines that the specified architecture has been
 844    selected, the corresponding INIT function is called.
 845
 846    --
 847
 848    The INIT function takes two parameters: INFO which contains the
 849    information available to gdbarch about the (possibly new)
 850    architecture; ARCHES which is a list of the previously created
 851    \`\`struct gdbarch'' for this architecture.
 852
 853    The INIT function parameter INFO shall, as far as possible, be
 854    pre-initialized with information obtained from INFO.ABFD or
 855    previously selected architecture (if similar).  INIT shall ensure
 856    that the INFO.BYTE_ORDER is non-zero.
 857
 858    The INIT function shall return any of: NULL - indicating that it
 859    doesn't recognize the selected architecture; an existing \`\`struct
 860    gdbarch'' from the ARCHES list - indicating that the new
 861    architecture is just a synonym for an earlier architecture (see
 862    gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
 863    - that describes the selected architecture (see gdbarch_alloc()).
 864
 865    The DUMP_TDEP function shall print out all target specific values.
 866    Care should be taken to ensure that the function works in both the
 867    multi-arch and non- multi-arch cases. */
 868
 869 struct gdbarch_list
 870 {
 871   struct gdbarch *gdbarch;
 872   struct gdbarch_list *next;
 873 };
 874
 875 struct gdbarch_info
 876 {
 877   /* Use default: NULL (ZERO). */
 878   const struct bfd_arch_info *bfd_arch_info;
 879
 880   /* Use default: 0 (ZERO). */
 881   int byte_order;
 882
 883   /* Use default: NULL (ZERO). */
 884   bfd *abfd;
 885
 886   /* Use default: NULL (ZERO). */
 887   struct gdbarch_tdep_info *tdep_info;
 888 };
 889
 890 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
 891 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
 892
 893 /* DEPRECATED - use gdbarch_register() */
 894 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
 895
 896 extern void gdbarch_register (enum bfd_architecture architecture,
 897                               gdbarch_init_ftype *,
 898                               gdbarch_dump_tdep_ftype *);
 899
 900
 901 /* Return a freshly allocated, NULL terminated, array of the valid
 902    architecture names.  Since architectures are registered during the
 903    _initialize phase this function only returns useful information
 904    once initialization has been completed. */
 905
 906 extern const char **gdbarch_printable_names (void);
 907
 908
 909 /* Helper function.  Search the list of ARCHES for a GDBARCH that
 910    matches the information provided by INFO. */
 911
 912 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches,  const struct gdbarch_info *info);
 913
 914
 915 /* Helper function.  Create a preliminary \`\`struct gdbarch''.  Perform
 916    basic initialization using values obtained from the INFO andTDEP
 917    parameters.  set_gdbarch_*() functions are called to complete the
 918    initialization of the object. */
 919
 920 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
 921
 922
 923 /* Helper function.  Free a partially-constructed \`\`struct gdbarch''.
 924    It is assumed that the caller freeds the \`\`struct
 925    gdbarch_tdep''. */
 926
 927 extern void gdbarch_free (struct gdbarch *);
 928
 929
 930 /* Helper function. Force an update of the current architecture.
 931
 932    The actual architecture selected is determined by INFO, \`\`(gdb) set
 933    architecture'' et.al., the existing architecture and BFD's default
 934    architecture.  INFO should be initialized to zero and then selected
 935    fields should be updated.
 936
 937    Returns non-zero if the update succeeds */
 938
 939 extern int gdbarch_update_p (struct gdbarch_info info);
 940
 941
 942
 943 /* Register per-architecture data-pointer.
 944
 945    Reserve space for a per-architecture data-pointer.  An identifier
 946    for the reserved data-pointer is returned.  That identifer should
 947    be saved in a local static variable.
 948
 949    The per-architecture data-pointer can be initialized in one of two
 950    ways: The value can be set explicitly using a call to
 951    set_gdbarch_data(); the value can be set implicitly using the value
 952    returned by a non-NULL INIT() callback.  INIT(), when non-NULL is
 953    called after the basic architecture vector has been created.
 954
 955    When a previously created architecture is re-selected, the
 956    per-architecture data-pointer for that previous architecture is
 957    restored.  INIT() is not called.
 958
 959    During initialization, multiple assignments of the data-pointer are
 960    allowed, non-NULL values are deleted by calling FREE().  If the
 961    architecture is deleted using gdbarch_free() all non-NULL data
 962    pointers are also deleted using FREE().
 963
 964    Multiple registrarants for any architecture are allowed (and
 965    strongly encouraged).  */
 966
 967 struct gdbarch_data;
 968
 969 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
 970 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
 971                                         void *pointer);
 972 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
 973                                                    gdbarch_data_free_ftype *free);
 974 extern void set_gdbarch_data (struct gdbarch *gdbarch,
 975                               struct gdbarch_data *data,
 976                               void *pointer);
 977
 978 extern void *gdbarch_data (struct gdbarch_data*);
 979
 980
 981 /* Register per-architecture memory region.
 982
 983    Provide a memory-region swap mechanism.  Per-architecture memory
 984    region are created.  These memory regions are swapped whenever the
 985    architecture is changed.  For a new architecture, the memory region
 986    is initialized with zero (0) and the INIT function is called.
 987
 988    Memory regions are swapped / initialized in the order that they are
 989    registered.  NULL DATA and/or INIT values can be specified.
 990
 991    New code should use register_gdbarch_data(). */
 992
 993 typedef void (gdbarch_swap_ftype) (void);
 994 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
 995 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
 996
 997
 998
 999 /* The target-system-dependent byte order is dynamic */
1000
1001 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
1002    is selectable at runtime.  The user can use the \`\`set endian''
1003    command to change it.  TARGET_BYTE_ORDER_AUTO is nonzero when
1004    target_byte_order should be auto-detected (from the program image
1005    say). */
1006
1007 #if GDB_MULTI_ARCH
1008 /* Multi-arch GDB is always bi-endian. */
1009 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1010 #endif
1011
1012 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
1013 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
1014    when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
1015 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1016 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1017 #else
1018 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
1019 #endif
1020 #endif
1021
1022 extern int target_byte_order;
1023 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1024 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
1025    and expect defs.h to re-define TARGET_BYTE_ORDER. */
1026 #undef TARGET_BYTE_ORDER
1027 #endif
1028 #ifndef TARGET_BYTE_ORDER
1029 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1030 #endif
1031
1032 extern int target_byte_order_auto;
1033 #ifndef TARGET_BYTE_ORDER_AUTO
1034 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1035 #endif
1036
1037
1038
1039 /* The target-system-dependent BFD architecture is dynamic */
1040
1041 extern int target_architecture_auto;
1042 #ifndef TARGET_ARCHITECTURE_AUTO
1043 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1044 #endif
1045
1046 extern const struct bfd_arch_info *target_architecture;
1047 #ifndef TARGET_ARCHITECTURE
1048 #define TARGET_ARCHITECTURE (target_architecture + 0)
1049 #endif
1050
1051
1052 /* The target-system-dependent disassembler is semi-dynamic */
1053
1054 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1055                                 unsigned int len, disassemble_info *info);
1056
1057 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1058                                   disassemble_info *info);
1059
1060 extern void dis_asm_print_address (bfd_vma addr,
1061                                    disassemble_info *info);
1062
1063 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1064 extern disassemble_info tm_print_insn_info;
1065 #ifndef TARGET_PRINT_INSN_INFO
1066 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1067 #endif
1068
1069
1070
1071 /* Set the dynamic target-system-dependent parameters (architecture,
1072    byte-order, ...) using information found in the BFD */
1073
1074 extern void set_gdbarch_from_file (bfd *);
1075
1076
1077 /* Initialize the current architecture to the "first" one we find on
1078    our list.  */
1079
1080 extern void initialize_current_architecture (void);
1081
1082 /* For non-multiarched targets, do any initialization of the default
1083    gdbarch object necessary after the _initialize_MODULE functions
1084    have run.  */
1085 extern void initialize_non_multiarch ();
1086
1087 /* gdbarch trace variable */
1088 extern int gdbarch_debug;
1089
1090 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1091
1092 #endif
1093 EOF
1094 exec 1>&2
1095 #../move-if-change new-gdbarch.h gdbarch.h
1096 compare_new gdbarch.h
1097
1098
1099 #
1100 # C file
1101 #
1102
1103 exec > new-gdbarch.c
1104 copyright
1105 cat <<EOF
1106
1107 #include "defs.h"
1108 #include "arch-utils.h"
1109
1110 #if GDB_MULTI_ARCH
1111 #include "gdbcmd.h"
1112 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1113 #else
1114 /* Just include everything in sight so that the every old definition
1115    of macro is visible. */
1116 #include "gdb_string.h"
1117 #include <ctype.h>
1118 #include "symtab.h"
1119 #include "frame.h"
1120 #include "inferior.h"
1121 #include "breakpoint.h"
1122 #include "gdb_wait.h"
1123 #include "gdbcore.h"
1124 #include "gdbcmd.h"
1125 #include "target.h"
1126 #include "gdbthread.h"
1127 #include "annotate.h"
1128 #include "symfile.h"            /* for overlay functions */
1129 #endif
1130 #include "symcat.h"
1131
1132 #include "floatformat.h"
1133
1134 #include "gdb_assert.h"
1135 #include "gdb-events.h"
1136
1137 /* Static function declarations */
1138
1139 static void verify_gdbarch (struct gdbarch *gdbarch);
1140 static void alloc_gdbarch_data (struct gdbarch *);
1141 static void init_gdbarch_data (struct gdbarch *);
1142 static void free_gdbarch_data (struct gdbarch *);
1143 static void init_gdbarch_swap (struct gdbarch *);
1144 static void swapout_gdbarch_swap (struct gdbarch *);
1145 static void swapin_gdbarch_swap (struct gdbarch *);
1146
1147 /* Convenience macro for allocting typesafe memory. */
1148
1149 #ifndef XMALLOC
1150 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1151 #endif
1152
1153
1154 /* Non-zero if we want to trace architecture code.  */
1155
1156 #ifndef GDBARCH_DEBUG
1157 #define GDBARCH_DEBUG 0
1158 #endif
1159 int gdbarch_debug = GDBARCH_DEBUG;
1160
1161 EOF
1162
1163 # gdbarch open the gdbarch object
1164 printf "\n"
1165 printf "/* Maintain the struct gdbarch object */\n"
1166 printf "\n"
1167 printf "struct gdbarch\n"
1168 printf "{\n"
1169 printf "  /* basic architectural information */\n"
1170 function_list | while do_read
1171 do
1172     if class_is_info_p
1173     then
1174         printf "  ${returntype} ${function};\n"
1175     fi
1176 done
1177 printf "\n"
1178 printf "  /* target specific vector. */\n"
1179 printf "  struct gdbarch_tdep *tdep;\n"
1180 printf "  gdbarch_dump_tdep_ftype *dump_tdep;\n"
1181 printf "\n"
1182 printf "  /* per-architecture data-pointers */\n"
1183 printf "  unsigned nr_data;\n"
1184 printf "  void **data;\n"
1185 printf "\n"
1186 printf "  /* per-architecture swap-regions */\n"
1187 printf "  struct gdbarch_swap *swap;\n"
1188 printf "\n"
1189 cat <<EOF
1190   /* Multi-arch values.
1191
1192      When extending this structure you must:
1193
1194      Add the field below.
1195
1196      Declare set/get functions and define the corresponding
1197      macro in gdbarch.h.
1198
1199      gdbarch_alloc(): If zero/NULL is not a suitable default,
1200      initialize the new field.
1201
1202      verify_gdbarch(): Confirm that the target updated the field
1203      correctly.
1204
1205      gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1206      field is dumped out
1207
1208      \`\`startup_gdbarch()'': Append an initial value to the static
1209      variable (base values on the host's c-type system).
1210
1211      get_gdbarch(): Implement the set/get functions (probably using
1212      the macro's as shortcuts).
1213
1214      */
1215
1216 EOF
1217 function_list | while do_read
1218 do
1219     if class_is_variable_p
1220     then
1221         printf "  ${returntype} ${function};\n"
1222     elif class_is_function_p
1223     then
1224         printf "  gdbarch_${function}_ftype *${function}${attrib};\n"
1225     fi
1226 done
1227 printf "};\n"
1228
1229 # A pre-initialized vector
1230 printf "\n"
1231 printf "\n"
1232 cat <<EOF
1233 /* The default architecture uses host values (for want of a better
1234    choice). */
1235 EOF
1236 printf "\n"
1237 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1238 printf "\n"
1239 printf "struct gdbarch startup_gdbarch =\n"
1240 printf "{\n"
1241 printf "  /* basic architecture information */\n"
1242 function_list | while do_read
1243 do
1244     if class_is_info_p
1245     then
1246         printf "  ${staticdefault},\n"
1247     fi
1248 done
1249 cat <<EOF
1250   /* target specific vector and its dump routine */
1251   NULL, NULL,
1252   /*per-architecture data-pointers and swap regions */
1253   0, NULL, NULL,
1254   /* Multi-arch values */
1255 EOF
1256 function_list | while do_read
1257 do
1258     if class_is_function_p || class_is_variable_p
1259     then
1260         printf "  ${staticdefault},\n"
1261     fi
1262 done
1263 cat <<EOF
1264   /* startup_gdbarch() */
1265 };
1266
1267 struct gdbarch *current_gdbarch = &startup_gdbarch;
1268
1269 /* Do any initialization needed for a non-multiarch configuration
1270    after the _initialize_MODULE functions have been run.  */
1271 void
1272 initialize_non_multiarch ()
1273 {
1274   alloc_gdbarch_data (&startup_gdbarch);
1275   init_gdbarch_data (&startup_gdbarch);
1276 }
1277 EOF
1278
1279 # Create a new gdbarch struct
1280 printf "\n"
1281 printf "\n"
1282 cat <<EOF
1283 /* Create a new \`\`struct gdbarch'' based on information provided by
1284    \`\`struct gdbarch_info''. */
1285 EOF
1286 printf "\n"
1287 cat <<EOF
1288 struct gdbarch *
1289 gdbarch_alloc (const struct gdbarch_info *info,
1290                struct gdbarch_tdep *tdep)
1291 {
1292   /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1293      so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1294      the current local architecture and not the previous global
1295      architecture.  This ensures that the new architectures initial
1296      values are not influenced by the previous architecture.  Once
1297      everything is parameterised with gdbarch, this will go away.  */
1298   struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1299   memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1300
1301   alloc_gdbarch_data (current_gdbarch);
1302
1303   current_gdbarch->tdep = tdep;
1304 EOF
1305 printf "\n"
1306 function_list | while do_read
1307 do
1308     if class_is_info_p
1309     then
1310         printf "  current_gdbarch->${function} = info->${function};\n"
1311     fi
1312 done
1313 printf "\n"
1314 printf "  /* Force the explicit initialization of these. */\n"
1315 function_list | while do_read
1316 do
1317     if class_is_function_p || class_is_variable_p
1318     then
1319         if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1320         then
1321           printf "  current_gdbarch->${function} = ${predefault};\n"
1322         fi
1323     fi
1324 done
1325 cat <<EOF
1326   /* gdbarch_alloc() */
1327
1328   return current_gdbarch;
1329 }
1330 EOF
1331
1332 # Free a gdbarch struct.
1333 printf "\n"
1334 printf "\n"
1335 cat <<EOF
1336 /* Free a gdbarch struct.  This should never happen in normal
1337    operation --- once you've created a gdbarch, you keep it around.
1338    However, if an architecture's init function encounters an error
1339    building the structure, it may need to clean up a partially
1340    constructed gdbarch.  */
1341
1342 void
1343 gdbarch_free (struct gdbarch *arch)
1344 {
1345   gdb_assert (arch != NULL);
1346   free_gdbarch_data (arch);
1347   xfree (arch);
1348 }
1349 EOF
1350
1351 # verify a new architecture
1352 printf "\n"
1353 printf "\n"
1354 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1355 printf "\n"
1356 cat <<EOF
1357 static void
1358 verify_gdbarch (struct gdbarch *gdbarch)
1359 {
1360   /* Only perform sanity checks on a multi-arch target. */
1361   if (!GDB_MULTI_ARCH)
1362     return;
1363   /* fundamental */
1364   if (gdbarch->byte_order == 0)
1365     internal_error (__FILE__, __LINE__,
1366                     "verify_gdbarch: byte-order unset");
1367   if (gdbarch->bfd_arch_info == NULL)
1368     internal_error (__FILE__, __LINE__,
1369                     "verify_gdbarch: bfd_arch_info unset");
1370   /* Check those that need to be defined for the given multi-arch level. */
1371 EOF
1372 function_list | while do_read
1373 do
1374     if class_is_function_p || class_is_variable_p
1375     then
1376         if [ "x${invalid_p}" = "x0" ]
1377         then
1378             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1379         elif class_is_predicate_p
1380         then
1381             printf "  /* Skip verify of ${function}, has predicate */\n"
1382         # FIXME: See do_read for potential simplification
1383         elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1384         then
1385             printf "  if (${invalid_p})\n"
1386             printf "    gdbarch->${function} = ${postdefault};\n"
1387         elif [ -n "${predefault}" -a -n "${postdefault}" ]
1388         then
1389             printf "  if (gdbarch->${function} == ${predefault})\n"
1390             printf "    gdbarch->${function} = ${postdefault};\n"
1391         elif [ -n "${postdefault}" ]
1392         then
1393             printf "  if (gdbarch->${function} == 0)\n"
1394             printf "    gdbarch->${function} = ${postdefault};\n"
1395         elif [ -n "${invalid_p}" ]
1396         then
1397             printf "  if ((GDB_MULTI_ARCH >= ${level})\n"
1398             printf "      && (${invalid_p}))\n"
1399             printf "    internal_error (__FILE__, __LINE__,\n"
1400             printf "                    \"gdbarch: verify_gdbarch: ${function} invalid\");\n"
1401         elif [ -n "${predefault}" ]
1402         then
1403             printf "  if ((GDB_MULTI_ARCH >= ${level})\n"
1404             printf "      && (gdbarch->${function} == ${predefault}))\n"
1405             printf "    internal_error (__FILE__, __LINE__,\n"
1406             printf "                    \"gdbarch: verify_gdbarch: ${function} invalid\");\n"
1407         fi
1408     fi
1409 done
1410 cat <<EOF
1411 }
1412 EOF
1413
1414 # dump the structure
1415 printf "\n"
1416 printf "\n"
1417 cat <<EOF
1418 /* Print out the details of the current architecture. */
1419
1420 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1421    just happens to match the global variable \`\`current_gdbarch''.  That
1422    way macros refering to that variable get the local and not the global
1423    version - ulgh.  Once everything is parameterised with gdbarch, this
1424    will go away. */
1425
1426 void
1427 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1428 {
1429   fprintf_unfiltered (file,
1430                       "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1431                       GDB_MULTI_ARCH);
1432 EOF
1433 function_list | sort -t: +2 | while do_read
1434 do
1435     # multiarch functions don't have macros.
1436     if class_is_multiarch_p
1437     then
1438         printf "  if (GDB_MULTI_ARCH)\n"
1439         printf "    fprintf_unfiltered (file,\n"
1440         printf "                        \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1441         printf "                        (long) current_gdbarch->${function});\n"
1442         continue
1443     fi
1444     printf "#ifdef ${macro}\n"
1445     if [ "x${returntype}" = "xvoid" ]
1446     then
1447         printf "#if GDB_MULTI_ARCH\n"
1448         printf "  /* Macro might contain \`[{}]' when not multi-arch */\n"
1449     fi
1450     if class_is_function_p
1451     then
1452         printf "  fprintf_unfiltered (file,\n"
1453         printf "                      \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1454         printf "                      \"${macro}(${actual})\",\n"
1455         printf "                      XSTRING (${macro} (${actual})));\n"
1456     else
1457         printf "  fprintf_unfiltered (file,\n"
1458         printf "                      \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1459         printf "                      XSTRING (${macro}));\n"
1460     fi
1461     if [ "x${returntype}" = "xvoid" ]
1462     then
1463         printf "#endif\n"
1464     fi
1465     if [ "x${print_p}" = "x()" ]
1466     then
1467         printf "  gdbarch_dump_${function} (current_gdbarch);\n"
1468     elif [ "x${print_p}" = "x0" ]
1469     then
1470         printf "  /* skip print of ${macro}, print_p == 0. */\n"
1471     elif [ -n "${print_p}" ]
1472     then
1473         printf "  if (${print_p})\n"
1474         printf "    fprintf_unfiltered (file,\n"
1475         printf "                        \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1476         printf "                        ${print});\n"
1477     elif class_is_function_p
1478     then
1479         printf "  if (GDB_MULTI_ARCH)\n"
1480         printf "    fprintf_unfiltered (file,\n"
1481         printf "                        \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1482         printf "                        (long) current_gdbarch->${function}\n"
1483         printf "                        /*${macro} ()*/);\n"
1484     else
1485         printf "  fprintf_unfiltered (file,\n"
1486         printf "                      \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1487         printf "                      ${print});\n"
1488     fi
1489     printf "#endif\n"
1490 done
1491 cat <<EOF
1492   if (current_gdbarch->dump_tdep != NULL)
1493     current_gdbarch->dump_tdep (current_gdbarch, file);
1494 }
1495 EOF
1496
1497
1498 # GET/SET
1499 printf "\n"
1500 cat <<EOF
1501 struct gdbarch_tdep *
1502 gdbarch_tdep (struct gdbarch *gdbarch)
1503 {
1504   if (gdbarch_debug >= 2)
1505     fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1506   return gdbarch->tdep;
1507 }
1508 EOF
1509 printf "\n"
1510 function_list | while do_read
1511 do
1512     if class_is_predicate_p
1513     then
1514         printf "\n"
1515         printf "int\n"
1516         printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1517         printf "{\n"
1518         if [ -n "${valid_p}" ]
1519         then
1520             printf "  return ${valid_p};\n"
1521         else
1522             printf "#error \"gdbarch_${function}_p: not defined\"\n"
1523         fi
1524         printf "}\n"
1525     fi
1526     if class_is_function_p
1527     then
1528         printf "\n"
1529         printf "${returntype}\n"
1530         if [ "x${formal}" = "xvoid" ]
1531         then
1532           printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1533         else
1534           printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1535         fi
1536         printf "{\n"
1537         printf "  if (gdbarch->${function} == 0)\n"
1538         printf "    internal_error (__FILE__, __LINE__,\n"
1539         printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1540         printf "  if (gdbarch_debug >= 2)\n"
1541         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1542         if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1543         then
1544             if class_is_multiarch_p
1545             then
1546                 params="gdbarch"
1547             else
1548                 params=""
1549             fi
1550         else
1551             if class_is_multiarch_p
1552             then
1553                 params="gdbarch, ${actual}"
1554             else
1555                 params="${actual}"
1556             fi
1557         fi
1558         if [ "x${returntype}" = "xvoid" ]
1559         then
1560           printf "  gdbarch->${function} (${params});\n"
1561         else
1562           printf "  return gdbarch->${function} (${params});\n"
1563         fi
1564         printf "}\n"
1565         printf "\n"
1566         printf "void\n"
1567         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1568         printf "            `echo ${function} | sed -e 's/./ /g'`  gdbarch_${function}_ftype ${function})\n"
1569         printf "{\n"
1570         printf "  gdbarch->${function} = ${function};\n"
1571         printf "}\n"
1572     elif class_is_variable_p
1573     then
1574         printf "\n"
1575         printf "${returntype}\n"
1576         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1577         printf "{\n"
1578         if [ "x${invalid_p}" = "x0" ]
1579         then
1580             printf "  /* Skip verify of ${function}, invalid_p == 0 */\n"
1581         elif [ -n "${invalid_p}" ]
1582         then
1583           printf "  if (${invalid_p})\n"
1584           printf "    internal_error (__FILE__, __LINE__,\n"
1585           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1586         elif [ -n "${predefault}" ]
1587         then
1588           printf "  if (gdbarch->${function} == ${predefault})\n"
1589           printf "    internal_error (__FILE__, __LINE__,\n"
1590           printf "                    \"gdbarch: gdbarch_${function} invalid\");\n"
1591         fi
1592         printf "  if (gdbarch_debug >= 2)\n"
1593         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1594         printf "  return gdbarch->${function};\n"
1595         printf "}\n"
1596         printf "\n"
1597         printf "void\n"
1598         printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1599         printf "            `echo ${function} | sed -e 's/./ /g'`  ${returntype} ${function})\n"
1600         printf "{\n"
1601         printf "  gdbarch->${function} = ${function};\n"
1602         printf "}\n"
1603     elif class_is_info_p
1604     then
1605         printf "\n"
1606         printf "${returntype}\n"
1607         printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1608         printf "{\n"
1609         printf "  if (gdbarch_debug >= 2)\n"
1610         printf "    fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1611         printf "  return gdbarch->${function};\n"
1612         printf "}\n"
1613     fi
1614 done
1615
1616 # All the trailing guff
1617 cat <<EOF
1618
1619
1620 /* Keep a registry of per-architecture data-pointers required by GDB
1621    modules. */
1622
1623 struct gdbarch_data
1624 {
1625   unsigned index;
1626   gdbarch_data_init_ftype *init;
1627   gdbarch_data_free_ftype *free;
1628 };
1629
1630 struct gdbarch_data_registration
1631 {
1632   struct gdbarch_data *data;
1633   struct gdbarch_data_registration *next;
1634 };
1635
1636 struct gdbarch_data_registry
1637 {
1638   unsigned nr;
1639   struct gdbarch_data_registration *registrations;
1640 };
1641
1642 struct gdbarch_data_registry gdbarch_data_registry =
1643 {
1644   0, NULL,
1645 };
1646
1647 struct gdbarch_data *
1648 register_gdbarch_data (gdbarch_data_init_ftype *init,
1649                        gdbarch_data_free_ftype *free)
1650 {
1651   struct gdbarch_data_registration **curr;
1652   for (curr = &gdbarch_data_registry.registrations;
1653        (*curr) != NULL;
1654        curr = &(*curr)->next);
1655   (*curr) = XMALLOC (struct gdbarch_data_registration);
1656   (*curr)->next = NULL;
1657   (*curr)->data = XMALLOC (struct gdbarch_data);
1658   (*curr)->data->index = gdbarch_data_registry.nr++;
1659   (*curr)->data->init = init;
1660   (*curr)->data->free = free;
1661   return (*curr)->data;
1662 }
1663
1664
1665 /* Walk through all the registered users initializing each in turn. */
1666
1667 static void
1668 init_gdbarch_data (struct gdbarch *gdbarch)
1669 {
1670   struct gdbarch_data_registration *rego;
1671   for (rego = gdbarch_data_registry.registrations;
1672        rego != NULL;
1673        rego = rego->next)
1674     {
1675       struct gdbarch_data *data = rego->data;
1676       gdb_assert (data->index < gdbarch->nr_data);
1677       if (data->init != NULL)
1678         {
1679           void *pointer = data->init (gdbarch);
1680           set_gdbarch_data (gdbarch, data, pointer);
1681         }
1682     }
1683 }
1684
1685 /* Create/delete the gdbarch data vector. */
1686
1687 static void
1688 alloc_gdbarch_data (struct gdbarch *gdbarch)
1689 {
1690   gdb_assert (gdbarch->data == NULL);
1691   gdbarch->nr_data = gdbarch_data_registry.nr;
1692   gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1693 }
1694
1695 static void
1696 free_gdbarch_data (struct gdbarch *gdbarch)
1697 {
1698   struct gdbarch_data_registration *rego;
1699   gdb_assert (gdbarch->data != NULL);
1700   for (rego = gdbarch_data_registry.registrations;
1701        rego != NULL;
1702        rego = rego->next)
1703     {
1704       struct gdbarch_data *data = rego->data;
1705       gdb_assert (data->index < gdbarch->nr_data);
1706       if (data->free != NULL && gdbarch->data[data->index] != NULL)
1707         {
1708           data->free (gdbarch, gdbarch->data[data->index]);
1709           gdbarch->data[data->index] = NULL;
1710         }
1711     }
1712   xfree (gdbarch->data);
1713   gdbarch->data = NULL;
1714 }
1715
1716
1717 /* Initialize the current value of thee specified per-architecture
1718    data-pointer. */
1719
1720 void
1721 set_gdbarch_data (struct gdbarch *gdbarch,
1722                   struct gdbarch_data *data,
1723                   void *pointer)
1724 {
1725   gdb_assert (data->index < gdbarch->nr_data);
1726   if (data->free != NULL && gdbarch->data[data->index] != NULL)
1727     data->free (gdbarch, gdbarch->data[data->index]);
1728   gdbarch->data[data->index] = pointer;
1729 }
1730
1731 /* Return the current value of the specified per-architecture
1732    data-pointer. */
1733
1734 void *
1735 gdbarch_data (struct gdbarch_data *data)
1736 {
1737   gdb_assert (data->index < current_gdbarch->nr_data);
1738   return current_gdbarch->data[data->index];
1739 }
1740
1741
1742
1743 /* Keep a registry of swapped data required by GDB modules. */
1744
1745 struct gdbarch_swap
1746 {
1747   void *swap;
1748   struct gdbarch_swap_registration *source;
1749   struct gdbarch_swap *next;
1750 };
1751
1752 struct gdbarch_swap_registration
1753 {
1754   void *data;
1755   unsigned long sizeof_data;
1756   gdbarch_swap_ftype *init;
1757   struct gdbarch_swap_registration *next;
1758 };
1759
1760 struct gdbarch_swap_registry
1761 {
1762   int nr;
1763   struct gdbarch_swap_registration *registrations;
1764 };
1765
1766 struct gdbarch_swap_registry gdbarch_swap_registry =
1767 {
1768   0, NULL,
1769 };
1770
1771 void
1772 register_gdbarch_swap (void *data,
1773                        unsigned long sizeof_data,
1774                        gdbarch_swap_ftype *init)
1775 {
1776   struct gdbarch_swap_registration **rego;
1777   for (rego = &gdbarch_swap_registry.registrations;
1778        (*rego) != NULL;
1779        rego = &(*rego)->next);
1780   (*rego) = XMALLOC (struct gdbarch_swap_registration);
1781   (*rego)->next = NULL;
1782   (*rego)->init = init;
1783   (*rego)->data = data;
1784   (*rego)->sizeof_data = sizeof_data;
1785 }
1786
1787
1788 static void
1789 init_gdbarch_swap (struct gdbarch *gdbarch)
1790 {
1791   struct gdbarch_swap_registration *rego;
1792   struct gdbarch_swap **curr = &gdbarch->swap;
1793   for (rego = gdbarch_swap_registry.registrations;
1794        rego != NULL;
1795        rego = rego->next)
1796     {
1797       if (rego->data != NULL)
1798         {
1799           (*curr) = XMALLOC (struct gdbarch_swap);
1800           (*curr)->source = rego;
1801           (*curr)->swap = xmalloc (rego->sizeof_data);
1802           (*curr)->next = NULL;
1803           memset (rego->data, 0, rego->sizeof_data);
1804           curr = &(*curr)->next;
1805         }
1806       if (rego->init != NULL)
1807         rego->init ();
1808     }
1809 }
1810
1811 static void
1812 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1813 {
1814   struct gdbarch_swap *curr;
1815   for (curr = gdbarch->swap;
1816        curr != NULL;
1817        curr = curr->next)
1818     memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1819 }
1820
1821 static void
1822 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1823 {
1824   struct gdbarch_swap *curr;
1825   for (curr = gdbarch->swap;
1826        curr != NULL;
1827        curr = curr->next)
1828     memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1829 }
1830
1831
1832 /* Keep a registry of the architectures known by GDB. */
1833
1834 struct gdbarch_registration
1835 {
1836   enum bfd_architecture bfd_architecture;
1837   gdbarch_init_ftype *init;
1838   gdbarch_dump_tdep_ftype *dump_tdep;
1839   struct gdbarch_list *arches;
1840   struct gdbarch_registration *next;
1841 };
1842
1843 static struct gdbarch_registration *gdbarch_registry = NULL;
1844
1845 static void
1846 append_name (const char ***buf, int *nr, const char *name)
1847 {
1848   *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1849   (*buf)[*nr] = name;
1850   *nr += 1;
1851 }
1852
1853 const char **
1854 gdbarch_printable_names (void)
1855 {
1856   if (GDB_MULTI_ARCH)
1857     {
1858       /* Accumulate a list of names based on the registed list of
1859          architectures. */
1860       enum bfd_architecture a;
1861       int nr_arches = 0;
1862       const char **arches = NULL;
1863       struct gdbarch_registration *rego;
1864       for (rego = gdbarch_registry;
1865            rego != NULL;
1866            rego = rego->next)
1867         {
1868           const struct bfd_arch_info *ap;
1869           ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1870           if (ap == NULL)
1871             internal_error (__FILE__, __LINE__,
1872                             "gdbarch_architecture_names: multi-arch unknown");
1873           do
1874             {
1875               append_name (&arches, &nr_arches, ap->printable_name);
1876               ap = ap->next;
1877             }
1878           while (ap != NULL);
1879         }
1880       append_name (&arches, &nr_arches, NULL);
1881       return arches;
1882     }
1883   else
1884     /* Just return all the architectures that BFD knows.  Assume that
1885        the legacy architecture framework supports them. */
1886     return bfd_arch_list ();
1887 }
1888
1889
1890 void
1891 gdbarch_register (enum bfd_architecture bfd_architecture,
1892                   gdbarch_init_ftype *init,
1893                   gdbarch_dump_tdep_ftype *dump_tdep)
1894 {
1895   struct gdbarch_registration **curr;
1896   const struct bfd_arch_info *bfd_arch_info;
1897   /* Check that BFD recognizes this architecture */
1898   bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1899   if (bfd_arch_info == NULL)
1900     {
1901       internal_error (__FILE__, __LINE__,
1902                       "gdbarch: Attempt to register unknown architecture (%d)",
1903                       bfd_architecture);
1904     }
1905   /* Check that we haven't seen this architecture before */
1906   for (curr = &gdbarch_registry;
1907        (*curr) != NULL;
1908        curr = &(*curr)->next)
1909     {
1910       if (bfd_architecture == (*curr)->bfd_architecture)
1911         internal_error (__FILE__, __LINE__,
1912                         "gdbarch: Duplicate registraration of architecture (%s)",
1913                         bfd_arch_info->printable_name);
1914     }
1915   /* log it */
1916   if (gdbarch_debug)
1917     fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1918                         bfd_arch_info->printable_name,
1919                         (long) init);
1920   /* Append it */
1921   (*curr) = XMALLOC (struct gdbarch_registration);
1922   (*curr)->bfd_architecture = bfd_architecture;
1923   (*curr)->init = init;
1924   (*curr)->dump_tdep = dump_tdep;
1925   (*curr)->arches = NULL;
1926   (*curr)->next = NULL;
1927   /* When non- multi-arch, install whatever target dump routine we've
1928      been provided - hopefully that routine has been written correctly
1929      and works regardless of multi-arch. */
1930   if (!GDB_MULTI_ARCH && dump_tdep != NULL
1931       && startup_gdbarch.dump_tdep == NULL)
1932     startup_gdbarch.dump_tdep = dump_tdep;
1933 }
1934
1935 void
1936 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1937                        gdbarch_init_ftype *init)
1938 {
1939   gdbarch_register (bfd_architecture, init, NULL);
1940 }
1941
1942
1943 /* Look for an architecture using gdbarch_info.  Base search on only
1944    BFD_ARCH_INFO and BYTE_ORDER. */
1945
1946 struct gdbarch_list *
1947 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1948                              const struct gdbarch_info *info)
1949 {
1950   for (; arches != NULL; arches = arches->next)
1951     {
1952       if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1953         continue;
1954       if (info->byte_order != arches->gdbarch->byte_order)
1955         continue;
1956       return arches;
1957     }
1958   return NULL;
1959 }
1960
1961
1962 /* Update the current architecture. Return ZERO if the update request
1963    failed. */
1964
1965 int
1966 gdbarch_update_p (struct gdbarch_info info)
1967 {
1968   struct gdbarch *new_gdbarch;
1969   struct gdbarch_list **list;
1970   struct gdbarch_registration *rego;
1971
1972   /* Fill in missing parts of the INFO struct using a number of
1973      sources: \`\`set ...''; INFOabfd supplied; existing target.  */
1974
1975   /* \`\`(gdb) set architecture ...'' */
1976   if (info.bfd_arch_info == NULL
1977       && !TARGET_ARCHITECTURE_AUTO)
1978     info.bfd_arch_info = TARGET_ARCHITECTURE;
1979   if (info.bfd_arch_info == NULL
1980       && info.abfd != NULL
1981       && bfd_get_arch (info.abfd) != bfd_arch_unknown
1982       && bfd_get_arch (info.abfd) != bfd_arch_obscure)
1983     info.bfd_arch_info = bfd_get_arch_info (info.abfd);
1984   if (info.bfd_arch_info == NULL)
1985     info.bfd_arch_info = TARGET_ARCHITECTURE;
1986
1987   /* \`\`(gdb) set byte-order ...'' */
1988   if (info.byte_order == 0
1989       && !TARGET_BYTE_ORDER_AUTO)
1990     info.byte_order = TARGET_BYTE_ORDER;
1991   /* From the INFO struct. */
1992   if (info.byte_order == 0
1993       && info.abfd != NULL)
1994     info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
1995                        : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN
1996                        : 0);
1997   /* From the current target. */
1998   if (info.byte_order == 0)
1999     info.byte_order = TARGET_BYTE_ORDER;
2000
2001   /* Must have found some sort of architecture. */
2002   gdb_assert (info.bfd_arch_info != NULL);
2003
2004   if (gdbarch_debug)
2005     {
2006       fprintf_unfiltered (gdb_stdlog,
2007                           "gdbarch_update: info.bfd_arch_info %s\n",
2008                           (info.bfd_arch_info != NULL
2009                            ? info.bfd_arch_info->printable_name
2010                            : "(null)"));
2011       fprintf_unfiltered (gdb_stdlog,
2012                           "gdbarch_update: info.byte_order %d (%s)\n",
2013                           info.byte_order,
2014                           (info.byte_order == BIG_ENDIAN ? "big"
2015                            : info.byte_order == LITTLE_ENDIAN ? "little"
2016                            : "default"));
2017       fprintf_unfiltered (gdb_stdlog,
2018                           "gdbarch_update: info.abfd 0x%lx\n",
2019                           (long) info.abfd);
2020       fprintf_unfiltered (gdb_stdlog,
2021                           "gdbarch_update: info.tdep_info 0x%lx\n",
2022                           (long) info.tdep_info);
2023     }
2024
2025   /* Find the target that knows about this architecture. */
2026   for (rego = gdbarch_registry;
2027        rego != NULL;
2028        rego = rego->next)
2029     if (rego->bfd_architecture == info.bfd_arch_info->arch)
2030       break;
2031   if (rego == NULL)
2032     {
2033       if (gdbarch_debug)
2034         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2035       return 0;
2036     }
2037
2038   /* Ask the target for a replacement architecture. */
2039   new_gdbarch = rego->init (info, rego->arches);
2040
2041   /* Did the target like it?  No. Reject the change. */
2042   if (new_gdbarch == NULL)
2043     {
2044       if (gdbarch_debug)
2045         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2046       return 0;
2047     }
2048
2049   /* Did the architecture change?  No. Do nothing. */
2050   if (current_gdbarch == new_gdbarch)
2051     {
2052       if (gdbarch_debug)
2053         fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2054                             (long) new_gdbarch,
2055                             new_gdbarch->bfd_arch_info->printable_name);
2056       return 1;
2057     }
2058
2059   /* Swap all data belonging to the old target out */
2060   swapout_gdbarch_swap (current_gdbarch);
2061
2062   /* Is this a pre-existing architecture?  Yes. Swap it in.  */
2063   for (list = &rego->arches;
2064        (*list) != NULL;
2065        list = &(*list)->next)
2066     {
2067       if ((*list)->gdbarch == new_gdbarch)
2068         {
2069           if (gdbarch_debug)
2070             fprintf_unfiltered (gdb_stdlog,
2071                                 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2072                                 (long) new_gdbarch,
2073                                 new_gdbarch->bfd_arch_info->printable_name);
2074           current_gdbarch = new_gdbarch;
2075           swapin_gdbarch_swap (new_gdbarch);
2076           architecture_changed_event ();
2077           return 1;
2078         }
2079     }
2080
2081   /* Append this new architecture to this targets list. */
2082   (*list) = XMALLOC (struct gdbarch_list);
2083   (*list)->next = NULL;
2084   (*list)->gdbarch = new_gdbarch;
2085
2086   /* Switch to this new architecture.  Dump it out. */
2087   current_gdbarch = new_gdbarch;
2088   if (gdbarch_debug)
2089     {
2090       fprintf_unfiltered (gdb_stdlog,
2091                           "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2092                           (long) new_gdbarch,
2093                           new_gdbarch->bfd_arch_info->printable_name);
2094     }
2095
2096   /* Check that the newly installed architecture is valid.  Plug in
2097      any post init values.  */
2098   new_gdbarch->dump_tdep = rego->dump_tdep;
2099   verify_gdbarch (new_gdbarch);
2100
2101   /* Initialize the per-architecture memory (swap) areas.
2102      CURRENT_GDBARCH must be update before these modules are
2103      called. */
2104   init_gdbarch_swap (new_gdbarch);
2105
2106   /* Initialize the per-architecture data-pointer of all parties that
2107      registered an interest in this architecture.  CURRENT_GDBARCH
2108      must be updated before these modules are called. */
2109   init_gdbarch_data (new_gdbarch);
2110   architecture_changed_event ();
2111
2112   if (gdbarch_debug)
2113     gdbarch_dump (current_gdbarch, gdb_stdlog);
2114
2115   return 1;
2116 }
2117
2118
2119 /* Disassembler */
2120
2121 /* Pointer to the target-dependent disassembly function.  */
2122 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2123 disassemble_info tm_print_insn_info;
2124
2125
2126 extern void _initialize_gdbarch (void);
2127
2128 void
2129 _initialize_gdbarch (void)
2130 {
2131   struct cmd_list_element *c;
2132
2133   INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2134   tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2135   tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2136   tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2137   tm_print_insn_info.print_address_func = dis_asm_print_address;
2138
2139   add_show_from_set (add_set_cmd ("arch",
2140                                   class_maintenance,
2141                                   var_zinteger,
2142                                   (char *)&gdbarch_debug,
2143                                   "Set architecture debugging.\\n\\
2144 When non-zero, architecture debugging is enabled.", &setdebuglist),
2145                      &showdebuglist);
2146   c = add_set_cmd ("archdebug",
2147                    class_maintenance,
2148                    var_zinteger,
2149                    (char *)&gdbarch_debug,
2150                    "Set architecture debugging.\\n\\
2151 When non-zero, architecture debugging is enabled.", &setlist);
2152
2153   deprecate_cmd (c, "set debug arch");
2154   deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2155 }
2156 EOF
2157
2158 # close things off
2159 exec 1>&2
2160 #../move-if-change new-gdbarch.c gdbarch.c
2161 compare_new gdbarch.c