3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
6 # This file is part of GDB.
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.
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.
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.
27 echo "${file} missing? cp new-${file} ${file}" 1>&2
28 elif diff -c ${file} new-
${file}
30 echo "${file} unchanged" 1>&2
32 echo "${file} has changed? cp new-${file} ${file}" 1>&2
37 # Format of the input table
38 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
46 if test "${line}" = ""
49 elif test "${line}" = "#" -a "${comment}" = ""
52 elif expr "${line}" : "#" > /dev
/null
58 # The semantics of IFS varies between different SH's. Some
59 # treat ``::' as three fields while some treat it as just too.
60 # Work around this by eliminating ``::'' ....
61 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
63 OFS
="${IFS}" ; IFS
="[:]"
64 eval read ${read} <<EOF
69 # .... and then going back through each field and strip out those
70 # that ended up with just that space character.
73 if eval test \"\
${${r}}\" = \"\
\"
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
88 if [ "${predefault}" ]
90 #invalid_p="gdbarch->${function} == ${predefault}"
91 valid_p
="gdbarch->${function} != ${predefault}"
93 #invalid_p="gdbarch->${function} == 0"
94 valid_p
="gdbarch->${function} != 0"
97 * ) valid_p
="!(${invalid_p})"
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.
107 if [ "${postdefault}" != "" ]
109 fallbackdefault
="${postdefault}"
110 elif [ "${predefault}" != "" ]
112 fallbackdefault
="${predefault}"
117 #NOT YET: See gdbarch.log for basic verification of
132 fallback_default_p
()
134 [ "${postdefault}" != "" -a "${invalid_p}" != "0" ] \
135 ||
[ "${predefault}" != "" -a "${invalid_p}" = "0" ]
138 class_is_variable_p
()
146 class_is_function_p
()
149 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
154 class_is_multiarch_p
()
162 class_is_predicate_p
()
165 *F
* |
*V
* |
*M
* ) true
;;
179 # dump out/verify the doco
189 # F -> function + predicate
190 # hiding a function + predicate to test function validity
193 # V -> variable + predicate
194 # hiding a variable + predicate to test variables validity
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
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).
210 # The name of the MACRO that this method is to be accessed by.
214 # For functions, the return type; for variables, the data type
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.
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.
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.
237 # Any GCC attributes that should be attached to the function
238 # declaration. At present this field is unused.
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.
247 # If STATICDEFAULT is empty, zero is used.
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.
256 # If PREDEFAULT is empty, zero is used.
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().
263 # Variable declarations can refer to ``gdbarch'' which will
264 # contain the current architecture. Care should be taken.
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-
273 # If POSTDEFAULT is empty, no post update is performed.
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.
279 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
281 # Variable declarations can refer to ``gdbarch'' which will
282 # contain the current architecture. Care should be taken.
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()
293 # If INVALID_P is empty, a check that MEMBER is no longer
294 # equal to PREDEFAULT is used.
296 # The expression ``0'' disables the INVALID_P check making
297 # PREDEFAULT a legitimate value.
299 # See also PREDEFAULT and POSTDEFAULT.
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.
307 # If FMT is empty, ``%ld'' is used.
311 # An optional equation that casts MEMBER to a value suitable
312 # for formatting by FMT.
314 # If PRINT is empty, ``(long)'' is used.
318 # An optional indicator for any predicte to wrap around the
321 # () -> Call a custom function to do the dump.
322 # exp -> Wrap print up in ``if (${print_p}) ...
323 # ``'' -> No predicate
325 # If PRINT_P is empty, ``1'' is always used.
338 # See below (DOCO) for description of each field
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
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:
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
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.
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.
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
377 v::IEEE_FLOAT:int:ieee_float::::0:0::0:::
379 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
380 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::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
386 M:::void:register_read:int regnum, char *buf:regnum, buf:
387 M:::void:register_write:int regnum, char *buf:regnum, buf:
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
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
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
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
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
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
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
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
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
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
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 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
493 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
495 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
497 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
498 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
499 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
500 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
501 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
502 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
503 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
504 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
505 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
507 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
508 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
509 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
510 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
511 v:2:PARM_BOUNDARY:int:parm_boundary
513 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
514 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
515 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown
516 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
517 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
518 # the target needs software single step. An ISA method to implement it.
520 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
521 # using the breakpoint system instead of blatting memory directly (as with rs6000).
523 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
524 # single step. If not, then implement single step using breakpoints.
525 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
532 exec > new-gdbarch.log
533 function_list |
while do_read
536 ${class} ${macro}(${actual})
537 ${returntype} ${function} ($formal)${attrib}
541 eval echo \"\ \ \ \
${r}=\
${${r}}\"
543 # #fallbackdefault=${fallbackdefault}
544 # #valid_p=${valid_p}
546 if class_is_predicate_p
&& fallback_default_p
548 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
552 if [ "${invalid_p}" = "0" -a "${postdefault}" != "" ]
554 echo "Error: postdefault is useless when invalid_p=0" 1>&2
562 compare_new gdbarch.log
568 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
570 /* Dynamic architecture support for GDB, the GNU debugger.
571 Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
573 This file is part of GDB.
575 This program is free software; you can redistribute it and/or modify
576 it under the terms of the GNU General Public License as published by
577 the Free Software Foundation; either version 2 of the License, or
578 (at your option) any later version.
580 This program is distributed in the hope that it will be useful,
581 but WITHOUT ANY WARRANTY; without even the implied warranty of
582 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
583 GNU General Public License for more details.
585 You should have received a copy of the GNU General Public License
586 along with this program; if not, write to the Free Software
587 Foundation, Inc., 59 Temple Place - Suite 330,
588 Boston, MA 02111-1307, USA. */
590 /* This file was created with the aid of \`\`gdbarch.sh''.
592 The Bourne shell script \`\`gdbarch.sh'' creates the files
593 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
594 against the existing \`\`gdbarch.[hc]''. Any differences found
597 If editing this file, please also run gdbarch.sh and merge any
598 changes into that script. Conversely, when making sweeping changes
599 to this file, modifying gdbarch.sh and using its output may prove
619 extern struct gdbarch *current_gdbarch;
622 /* If any of the following are defined, the target wasn't correctly
626 #if defined (EXTRA_FRAME_INFO)
627 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
632 #if defined (FRAME_FIND_SAVED_REGS)
633 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
641 printf "/* The following are pre-initialized by GDBARCH. */\n"
642 function_list |
while do_read
647 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
648 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
649 printf "#if GDB_MULTI_ARCH\n"
650 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
651 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
660 printf "/* The following are initialized by the target dependent code. */\n"
661 function_list |
while do_read
665 echo "${comment}" |
sed \
670 if class_is_multiarch_p
672 if class_is_predicate_p
675 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
678 if class_is_predicate_p
681 printf "#if defined (${macro})\n"
682 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
683 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
684 printf "#if !defined (${macro}_P)\n"
685 printf "#define ${macro}_P() (1)\n"
689 printf "/* Default predicate for non- multi-arch targets. */\n"
690 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
691 printf "#define ${macro}_P() (0)\n"
694 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
695 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
696 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
700 if class_is_variable_p
702 if fallback_default_p || class_is_predicate_p
705 printf "/* Default (value) for non- multi-arch platforms. */\n"
706 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
707 echo "#define ${macro} (${fallbackdefault})" \
708 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
712 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
713 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
714 printf "#if GDB_MULTI_ARCH\n"
715 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
716 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
720 if class_is_function_p
722 if class_is_multiarch_p
; then :
723 elif fallback_default_p || class_is_predicate_p
726 printf "/* Default (function) for non- multi-arch platforms. */\n"
727 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
728 if [ "${fallbackdefault}" = "0" ]
730 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
732 # FIXME: Should be passing current_gdbarch through!
733 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
734 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
739 if [ "${formal}" = "void" ] && class_is_multiarch_p
741 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
742 elif class_is_multiarch_p
744 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
746 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
748 if [ "${formal}" = "void" ]
750 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
752 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
754 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
755 if class_is_multiarch_p
; then :
757 printf "#if GDB_MULTI_ARCH\n"
758 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
759 if [ "${actual}" = "" ]
761 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
762 elif [ "${actual}" = "-" ]
764 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
766 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
777 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
780 /* Mechanism for co-ordinating the selection of a specific
783 GDB targets (*-tdep.c) can register an interest in a specific
784 architecture. Other GDB components can register a need to maintain
785 per-architecture data.
787 The mechanisms below ensures that there is only a loose connection
788 between the set-architecture command and the various GDB
789 components. Each component can independently register their need
790 to maintain architecture specific data with gdbarch.
794 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
797 The more traditional mega-struct containing architecture specific
798 data for all the various GDB components was also considered. Since
799 GDB is built from a variable number of (fairly independent)
800 components it was determined that the global aproach was not
804 /* Register a new architectural family with GDB.
806 Register support for the specified ARCHITECTURE with GDB. When
807 gdbarch determines that the specified architecture has been
808 selected, the corresponding INIT function is called.
812 The INIT function takes two parameters: INFO which contains the
813 information available to gdbarch about the (possibly new)
814 architecture; ARCHES which is a list of the previously created
815 \`\`struct gdbarch'' for this architecture.
817 The INIT function parameter INFO shall, as far as possible, be
818 pre-initialized with information obtained from INFO.ABFD or
819 previously selected architecture (if similar). INIT shall ensure
820 that the INFO.BYTE_ORDER is non-zero.
822 The INIT function shall return any of: NULL - indicating that it
823 doesn't recognize the selected architecture; an existing \`\`struct
824 gdbarch'' from the ARCHES list - indicating that the new
825 architecture is just a synonym for an earlier architecture (see
826 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
827 - that describes the selected architecture (see gdbarch_alloc()).
829 The DUMP_TDEP function shall print out all target specific values.
830 Care should be taken to ensure that the function works in both the
831 multi-arch and non- multi-arch cases. */
835 struct gdbarch *gdbarch;
836 struct gdbarch_list *next;
841 /* Use default: NULL (ZERO). */
842 const struct bfd_arch_info *bfd_arch_info;
844 /* Use default: 0 (ZERO). */
847 /* Use default: NULL (ZERO). */
850 /* Use default: NULL (ZERO). */
851 struct gdbarch_tdep_info *tdep_info;
854 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
855 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
857 /* DEPRECATED - use gdbarch_register() */
858 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
860 extern void gdbarch_register (enum bfd_architecture architecture,
861 gdbarch_init_ftype *,
862 gdbarch_dump_tdep_ftype *);
865 /* Return a freshly allocated, NULL terminated, array of the valid
866 architecture names. Since architectures are registered during the
867 _initialize phase this function only returns useful information
868 once initialization has been completed. */
870 extern const char **gdbarch_printable_names (void);
873 /* Helper function. Search the list of ARCHES for a GDBARCH that
874 matches the information provided by INFO. */
876 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
879 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
880 basic initialization using values obtained from the INFO andTDEP
881 parameters. set_gdbarch_*() functions are called to complete the
882 initialization of the object. */
884 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
887 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
888 It is assumed that the caller freeds the \`\`struct
891 extern void gdbarch_free (struct gdbarch *);
894 /* Helper function. Force an update of the current architecture.
896 The actual architecture selected is determined by INFO, \`\`(gdb) set
897 architecture'' et.al., the existing architecture and BFD's default
898 architecture. INFO should be initialized to zero and then selected
899 fields should be updated.
901 Returns non-zero if the update succeeds */
903 extern int gdbarch_update_p (struct gdbarch_info info);
907 /* Register per-architecture data-pointer.
909 Reserve space for a per-architecture data-pointer. An identifier
910 for the reserved data-pointer is returned. That identifer should
911 be saved in a local static variable.
913 The per-architecture data-pointer can be initialized in one of two
914 ways: The value can be set explicitly using a call to
915 set_gdbarch_data(); the value can be set implicitly using the value
916 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
917 called after the basic architecture vector has been created.
919 When a previously created architecture is re-selected, the
920 per-architecture data-pointer for that previous architecture is
921 restored. INIT() is not called.
923 During initialization, multiple assignments of the data-pointer are
924 allowed, non-NULL values are deleted by calling FREE(). If the
925 architecture is deleted using gdbarch_free() all non-NULL data
926 pointers are also deleted using FREE().
928 Multiple registrarants for any architecture are allowed (and
929 strongly encouraged). */
933 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
934 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
936 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
937 gdbarch_data_free_ftype *free);
938 extern void set_gdbarch_data (struct gdbarch *gdbarch,
939 struct gdbarch_data *data,
942 extern void *gdbarch_data (struct gdbarch_data*);
945 /* Register per-architecture memory region.
947 Provide a memory-region swap mechanism. Per-architecture memory
948 region are created. These memory regions are swapped whenever the
949 architecture is changed. For a new architecture, the memory region
950 is initialized with zero (0) and the INIT function is called.
952 Memory regions are swapped / initialized in the order that they are
953 registered. NULL DATA and/or INIT values can be specified.
955 New code should use register_gdbarch_data(). */
957 typedef void (gdbarch_swap_ftype) (void);
958 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
959 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
963 /* The target-system-dependent byte order is dynamic */
965 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
966 is selectable at runtime. The user can use the \`\`set endian''
967 command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when
968 target_byte_order should be auto-detected (from the program image
972 /* Multi-arch GDB is always bi-endian. */
973 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
976 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
977 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
978 when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
979 #ifdef TARGET_BYTE_ORDER_SELECTABLE
980 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
982 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
986 extern int target_byte_order;
987 #ifdef TARGET_BYTE_ORDER_SELECTABLE
988 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
989 and expect defs.h to re-define TARGET_BYTE_ORDER. */
990 #undef TARGET_BYTE_ORDER
992 #ifndef TARGET_BYTE_ORDER
993 #define TARGET_BYTE_ORDER (target_byte_order + 0)
996 extern int target_byte_order_auto;
997 #ifndef TARGET_BYTE_ORDER_AUTO
998 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1003 /* The target-system-dependent BFD architecture is dynamic */
1005 extern int target_architecture_auto;
1006 #ifndef TARGET_ARCHITECTURE_AUTO
1007 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1010 extern const struct bfd_arch_info *target_architecture;
1011 #ifndef TARGET_ARCHITECTURE
1012 #define TARGET_ARCHITECTURE (target_architecture + 0)
1016 /* The target-system-dependent disassembler is semi-dynamic */
1018 #include "dis-asm.h" /* Get defs for disassemble_info */
1020 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1021 unsigned int len, disassemble_info *info);
1023 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1024 disassemble_info *info);
1026 extern void dis_asm_print_address (bfd_vma addr,
1027 disassemble_info *info);
1029 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1030 extern disassemble_info tm_print_insn_info;
1031 #ifndef TARGET_PRINT_INSN
1032 #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info)
1034 #ifndef TARGET_PRINT_INSN_INFO
1035 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1040 /* Explicit test for D10V architecture.
1041 USE of these macro's is *STRONGLY* discouraged. */
1043 #define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v)
1046 /* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */
1047 #ifndef EXTRACT_STRUCT_VALUE_ADDRESS
1048 #define EXTRACT_STRUCT_VALUE_ADDRESS_P (0)
1049 #define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error (__FILE__, __LINE__, "gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0)
1051 #ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P
1052 #define EXTRACT_STRUCT_VALUE_ADDRESS_P (1)
1057 /* Set the dynamic target-system-dependent parameters (architecture,
1058 byte-order, ...) using information found in the BFD */
1060 extern void set_gdbarch_from_file (bfd *);
1063 /* Initialize the current architecture to the "first" one we find on
1066 extern void initialize_current_architecture (void);
1069 /* gdbarch trace variable */
1070 extern int gdbarch_debug;
1072 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1077 #../move-if-change new-gdbarch.h gdbarch.h
1078 compare_new gdbarch.h
1085 exec > new-gdbarch.c
1090 #include "arch-utils.h"
1094 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1096 /* Just include everything in sight so that the every old definition
1097 of macro is visible. */
1098 #include "gdb_string.h"
1102 #include "inferior.h"
1103 #include "breakpoint.h"
1104 #include "gdb_wait.h"
1105 #include "gdbcore.h"
1108 #include "gdbthread.h"
1109 #include "annotate.h"
1110 #include "symfile.h" /* for overlay functions */
1114 #include "floatformat.h"
1116 #include "gdb_assert.h"
1118 /* Static function declarations */
1120 static void verify_gdbarch (struct gdbarch *gdbarch);
1121 static void alloc_gdbarch_data (struct gdbarch *);
1122 static void init_gdbarch_data (struct gdbarch *);
1123 static void free_gdbarch_data (struct gdbarch *);
1124 static void init_gdbarch_swap (struct gdbarch *);
1125 static void swapout_gdbarch_swap (struct gdbarch *);
1126 static void swapin_gdbarch_swap (struct gdbarch *);
1128 /* Convenience macro for allocting typesafe memory. */
1131 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1135 /* Non-zero if we want to trace architecture code. */
1137 #ifndef GDBARCH_DEBUG
1138 #define GDBARCH_DEBUG 0
1140 int gdbarch_debug = GDBARCH_DEBUG;
1144 # gdbarch open the gdbarch object
1146 printf "/* Maintain the struct gdbarch object */\n"
1148 printf "struct gdbarch\n"
1150 printf " /* basic architectural information */\n"
1151 function_list |
while do_read
1155 printf " ${returntype} ${function};\n"
1159 printf " /* target specific vector. */\n"
1160 printf " struct gdbarch_tdep *tdep;\n"
1161 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1163 printf " /* per-architecture data-pointers */\n"
1164 printf " unsigned nr_data;\n"
1165 printf " void **data;\n"
1167 printf " /* per-architecture swap-regions */\n"
1168 printf " struct gdbarch_swap *swap;\n"
1171 /* Multi-arch values.
1173 When extending this structure you must:
1175 Add the field below.
1177 Declare set/get functions and define the corresponding
1180 gdbarch_alloc(): If zero/NULL is not a suitable default,
1181 initialize the new field.
1183 verify_gdbarch(): Confirm that the target updated the field
1186 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1189 \`\`startup_gdbarch()'': Append an initial value to the static
1190 variable (base values on the host's c-type system).
1192 get_gdbarch(): Implement the set/get functions (probably using
1193 the macro's as shortcuts).
1198 function_list |
while do_read
1200 if class_is_variable_p
1202 printf " ${returntype} ${function};\n"
1203 elif class_is_function_p
1205 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1210 # A pre-initialized vector
1214 /* The default architecture uses host values (for want of a better
1218 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1220 printf "struct gdbarch startup_gdbarch =\n"
1222 printf " /* basic architecture information */\n"
1223 function_list |
while do_read
1227 printf " ${staticdefault},\n"
1231 /* target specific vector and its dump routine */
1233 /*per-architecture data-pointers and swap regions */
1235 /* Multi-arch values */
1237 function_list |
while do_read
1239 if class_is_function_p || class_is_variable_p
1241 printf " ${staticdefault},\n"
1245 /* startup_gdbarch() */
1248 struct gdbarch *current_gdbarch = &startup_gdbarch;
1251 # Create a new gdbarch struct
1255 /* Create a new \`\`struct gdbarch'' based on information provided by
1256 \`\`struct gdbarch_info''. */
1261 gdbarch_alloc (const struct gdbarch_info *info,
1262 struct gdbarch_tdep *tdep)
1264 struct gdbarch *gdbarch = XMALLOC (struct gdbarch);
1265 memset (gdbarch, 0, sizeof (*gdbarch));
1267 alloc_gdbarch_data (gdbarch);
1269 gdbarch->tdep = tdep;
1272 function_list |
while do_read
1276 printf " gdbarch->${function} = info->${function};\n"
1280 printf " /* Force the explicit initialization of these. */\n"
1281 function_list |
while do_read
1283 if class_is_function_p || class_is_variable_p
1285 if [ "${predefault}" != "" -a "${predefault}" != "0" ]
1287 printf " gdbarch->${function} = ${predefault};\n"
1292 /* gdbarch_alloc() */
1298 # Free a gdbarch struct.
1302 /* Free a gdbarch struct. This should never happen in normal
1303 operation --- once you've created a gdbarch, you keep it around.
1304 However, if an architecture's init function encounters an error
1305 building the structure, it may need to clean up a partially
1306 constructed gdbarch. */
1309 gdbarch_free (struct gdbarch *arch)
1311 gdb_assert (arch != NULL);
1312 free_gdbarch_data (arch);
1317 # verify a new architecture
1320 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1324 verify_gdbarch (struct gdbarch *gdbarch)
1326 /* Only perform sanity checks on a multi-arch target. */
1327 if (!GDB_MULTI_ARCH)
1330 if (gdbarch->byte_order == 0)
1331 internal_error (__FILE__, __LINE__,
1332 "verify_gdbarch: byte-order unset");
1333 if (gdbarch->bfd_arch_info == NULL)
1334 internal_error (__FILE__, __LINE__,
1335 "verify_gdbarch: bfd_arch_info unset");
1336 /* Check those that need to be defined for the given multi-arch level. */
1338 function_list |
while do_read
1340 if class_is_function_p || class_is_variable_p
1342 if [ "${invalid_p}" = "0" ]
1344 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1345 elif class_is_predicate_p
1347 printf " /* Skip verify of ${function}, has predicate */\n"
1348 # FIXME: See do_read for potential simplification
1349 elif [ "${invalid_p}" -a "${postdefault}" ]
1351 printf " if (${invalid_p})\n"
1352 printf " gdbarch->${function} = ${postdefault};\n"
1353 elif [ "${predefault}" -a "${postdefault}" ]
1355 printf " if (gdbarch->${function} == ${predefault})\n"
1356 printf " gdbarch->${function} = ${postdefault};\n"
1357 elif [ "${postdefault}" ]
1359 printf " if (gdbarch->${function} == 0)\n"
1360 printf " gdbarch->${function} = ${postdefault};\n"
1361 elif [ "${invalid_p}" ]
1363 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1364 printf " && (${invalid_p}))\n"
1365 printf " internal_error (__FILE__, __LINE__,\n"
1366 printf " \"gdbarch: verify_gdbarch: ${function} invalid\");\n"
1367 elif [ "${predefault}" ]
1369 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1370 printf " && (gdbarch->${function} == ${predefault}))\n"
1371 printf " internal_error (__FILE__, __LINE__,\n"
1372 printf " \"gdbarch: verify_gdbarch: ${function} invalid\");\n"
1380 # dump the structure
1384 /* Print out the details of the current architecture. */
1386 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1387 just happens to match the global variable \`\`current_gdbarch''. That
1388 way macros refering to that variable get the local and not the global
1389 version - ulgh. Once everything is parameterised with gdbarch, this
1393 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1395 fprintf_unfiltered (file,
1396 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1399 function_list |
while do_read
1401 # multiarch functions don't have macros.
1402 class_is_multiarch_p
&& continue
1403 if [ "${returntype}" = "void" ]
1405 printf "#if defined (${macro}) && GDB_MULTI_ARCH\n"
1406 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1408 printf "#ifdef ${macro}\n"
1410 if class_is_function_p
1412 printf " fprintf_unfiltered (file,\n"
1413 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1414 printf " \"${macro}(${actual})\",\n"
1415 printf " XSTRING (${macro} (${actual})));\n"
1417 printf " fprintf_unfiltered (file,\n"
1418 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1419 printf " XSTRING (${macro}));\n"
1423 function_list |
while do_read
1425 if class_is_multiarch_p
1427 printf " if (GDB_MULTI_ARCH)\n"
1428 printf " fprintf_unfiltered (file,\n"
1429 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1430 printf " (long) current_gdbarch->${function});\n"
1433 printf "#ifdef ${macro}\n"
1434 if [ "${print_p}" = "()" ]
1436 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1437 elif [ "${print_p}" = "0" ]
1439 printf " /* skip print of ${macro}, print_p == 0. */\n"
1440 elif [ "${print_p}" ]
1442 printf " if (${print_p})\n"
1443 printf " fprintf_unfiltered (file,\n"
1444 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1445 printf " ${print});\n"
1446 elif class_is_function_p
1448 printf " if (GDB_MULTI_ARCH)\n"
1449 printf " fprintf_unfiltered (file,\n"
1450 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1451 printf " (long) current_gdbarch->${function}\n"
1452 printf " /*${macro} ()*/);\n"
1454 printf " fprintf_unfiltered (file,\n"
1455 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1456 printf " ${print});\n"
1461 if (current_gdbarch->dump_tdep != NULL)
1462 current_gdbarch->dump_tdep (current_gdbarch, file);
1470 struct gdbarch_tdep *
1471 gdbarch_tdep (struct gdbarch *gdbarch)
1473 if (gdbarch_debug >= 2)
1474 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1475 return gdbarch->tdep;
1479 function_list |
while do_read
1481 if class_is_predicate_p
1485 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1489 printf " return ${valid_p};\n"
1491 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1495 if class_is_function_p
1498 printf "${returntype}\n"
1499 if [ "${formal}" = "void" ]
1501 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1503 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1506 printf " if (gdbarch->${function} == 0)\n"
1507 printf " internal_error (__FILE__, __LINE__,\n"
1508 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1509 printf " if (gdbarch_debug >= 2)\n"
1510 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1511 if [ "${actual}" = "-" -o "${actual}" = "" ]
1513 if class_is_multiarch_p
1520 if class_is_multiarch_p
1522 params
="gdbarch, ${actual}"
1527 if [ "${returntype}" = "void" ]
1529 printf " gdbarch->${function} (${params});\n"
1531 printf " return gdbarch->${function} (${params});\n"
1536 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1537 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1539 printf " gdbarch->${function} = ${function};\n"
1541 elif class_is_variable_p
1544 printf "${returntype}\n"
1545 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1547 if [ "${invalid_p}" = "0" ]
1549 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1550 elif [ "${invalid_p}" ]
1552 printf " if (${invalid_p})\n"
1553 printf " internal_error (__FILE__, __LINE__,\n"
1554 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1555 elif [ "${predefault}" ]
1557 printf " if (gdbarch->${function} == ${predefault})\n"
1558 printf " internal_error (__FILE__, __LINE__,\n"
1559 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1561 printf " if (gdbarch_debug >= 2)\n"
1562 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1563 printf " return gdbarch->${function};\n"
1567 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1568 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1570 printf " gdbarch->${function} = ${function};\n"
1572 elif class_is_info_p
1575 printf "${returntype}\n"
1576 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1578 printf " if (gdbarch_debug >= 2)\n"
1579 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1580 printf " return gdbarch->${function};\n"
1585 # All the trailing guff
1589 /* Keep a registry of per-architecture data-pointers required by GDB
1595 gdbarch_data_init_ftype *init;
1596 gdbarch_data_free_ftype *free;
1599 struct gdbarch_data_registration
1601 struct gdbarch_data *data;
1602 struct gdbarch_data_registration *next;
1605 struct gdbarch_data_registry
1608 struct gdbarch_data_registration *registrations;
1611 struct gdbarch_data_registry gdbarch_data_registry =
1616 struct gdbarch_data *
1617 register_gdbarch_data (gdbarch_data_init_ftype *init,
1618 gdbarch_data_free_ftype *free)
1620 struct gdbarch_data_registration **curr;
1621 for (curr = &gdbarch_data_registry.registrations;
1623 curr = &(*curr)->next);
1624 (*curr) = XMALLOC (struct gdbarch_data_registration);
1625 (*curr)->next = NULL;
1626 (*curr)->data = XMALLOC (struct gdbarch_data);
1627 (*curr)->data->index = gdbarch_data_registry.nr++;
1628 (*curr)->data->init = init;
1629 (*curr)->data->free = free;
1630 return (*curr)->data;
1634 /* Walk through all the registered users initializing each in turn. */
1637 init_gdbarch_data (struct gdbarch *gdbarch)
1639 struct gdbarch_data_registration *rego;
1640 for (rego = gdbarch_data_registry.registrations;
1644 struct gdbarch_data *data = rego->data;
1645 gdb_assert (data->index < gdbarch->nr_data);
1646 if (data->init != NULL)
1648 void *pointer = data->init (gdbarch);
1649 set_gdbarch_data (gdbarch, data, pointer);
1654 /* Create/delete the gdbarch data vector. */
1657 alloc_gdbarch_data (struct gdbarch *gdbarch)
1659 gdb_assert (gdbarch->data == NULL);
1660 gdbarch->nr_data = gdbarch_data_registry.nr;
1661 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1665 free_gdbarch_data (struct gdbarch *gdbarch)
1667 struct gdbarch_data_registration *rego;
1668 gdb_assert (gdbarch->data != NULL);
1669 for (rego = gdbarch_data_registry.registrations;
1673 struct gdbarch_data *data = rego->data;
1674 gdb_assert (data->index < gdbarch->nr_data);
1675 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1677 data->free (gdbarch, gdbarch->data[data->index]);
1678 gdbarch->data[data->index] = NULL;
1681 xfree (gdbarch->data);
1682 gdbarch->data = NULL;
1686 /* Initialize the current value of thee specified per-architecture
1690 set_gdbarch_data (struct gdbarch *gdbarch,
1691 struct gdbarch_data *data,
1694 gdb_assert (data->index < gdbarch->nr_data);
1695 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1696 data->free (gdbarch, gdbarch->data[data->index]);
1697 gdbarch->data[data->index] = pointer;
1700 /* Return the current value of the specified per-architecture
1704 gdbarch_data (struct gdbarch_data *data)
1706 gdb_assert (data->index < current_gdbarch->nr_data);
1707 return current_gdbarch->data[data->index];
1712 /* Keep a registry of swapped data required by GDB modules. */
1717 struct gdbarch_swap_registration *source;
1718 struct gdbarch_swap *next;
1721 struct gdbarch_swap_registration
1724 unsigned long sizeof_data;
1725 gdbarch_swap_ftype *init;
1726 struct gdbarch_swap_registration *next;
1729 struct gdbarch_swap_registry
1732 struct gdbarch_swap_registration *registrations;
1735 struct gdbarch_swap_registry gdbarch_swap_registry =
1741 register_gdbarch_swap (void *data,
1742 unsigned long sizeof_data,
1743 gdbarch_swap_ftype *init)
1745 struct gdbarch_swap_registration **rego;
1746 for (rego = &gdbarch_swap_registry.registrations;
1748 rego = &(*rego)->next);
1749 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1750 (*rego)->next = NULL;
1751 (*rego)->init = init;
1752 (*rego)->data = data;
1753 (*rego)->sizeof_data = sizeof_data;
1758 init_gdbarch_swap (struct gdbarch *gdbarch)
1760 struct gdbarch_swap_registration *rego;
1761 struct gdbarch_swap **curr = &gdbarch->swap;
1762 for (rego = gdbarch_swap_registry.registrations;
1766 if (rego->data != NULL)
1768 (*curr) = XMALLOC (struct gdbarch_swap);
1769 (*curr)->source = rego;
1770 (*curr)->swap = xmalloc (rego->sizeof_data);
1771 (*curr)->next = NULL;
1772 memset (rego->data, 0, rego->sizeof_data);
1773 curr = &(*curr)->next;
1775 if (rego->init != NULL)
1781 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1783 struct gdbarch_swap *curr;
1784 for (curr = gdbarch->swap;
1787 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1791 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1793 struct gdbarch_swap *curr;
1794 for (curr = gdbarch->swap;
1797 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1801 /* Keep a registry of the architectures known by GDB. */
1803 struct gdbarch_registration
1805 enum bfd_architecture bfd_architecture;
1806 gdbarch_init_ftype *init;
1807 gdbarch_dump_tdep_ftype *dump_tdep;
1808 struct gdbarch_list *arches;
1809 struct gdbarch_registration *next;
1812 static struct gdbarch_registration *gdbarch_registry = NULL;
1815 append_name (const char ***buf, int *nr, const char *name)
1817 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1823 gdbarch_printable_names (void)
1827 /* Accumulate a list of names based on the registed list of
1829 enum bfd_architecture a;
1831 const char **arches = NULL;
1832 struct gdbarch_registration *rego;
1833 for (rego = gdbarch_registry;
1837 const struct bfd_arch_info *ap;
1838 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1840 internal_error (__FILE__, __LINE__,
1841 "gdbarch_architecture_names: multi-arch unknown");
1844 append_name (&arches, &nr_arches, ap->printable_name);
1849 append_name (&arches, &nr_arches, NULL);
1853 /* Just return all the architectures that BFD knows. Assume that
1854 the legacy architecture framework supports them. */
1855 return bfd_arch_list ();
1860 gdbarch_register (enum bfd_architecture bfd_architecture,
1861 gdbarch_init_ftype *init,
1862 gdbarch_dump_tdep_ftype *dump_tdep)
1864 struct gdbarch_registration **curr;
1865 const struct bfd_arch_info *bfd_arch_info;
1866 /* Check that BFD recognizes this architecture */
1867 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1868 if (bfd_arch_info == NULL)
1870 internal_error (__FILE__, __LINE__,
1871 "gdbarch: Attempt to register unknown architecture (%d)",
1874 /* Check that we haven't seen this architecture before */
1875 for (curr = &gdbarch_registry;
1877 curr = &(*curr)->next)
1879 if (bfd_architecture == (*curr)->bfd_architecture)
1880 internal_error (__FILE__, __LINE__,
1881 "gdbarch: Duplicate registraration of architecture (%s)",
1882 bfd_arch_info->printable_name);
1886 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1887 bfd_arch_info->printable_name,
1890 (*curr) = XMALLOC (struct gdbarch_registration);
1891 (*curr)->bfd_architecture = bfd_architecture;
1892 (*curr)->init = init;
1893 (*curr)->dump_tdep = dump_tdep;
1894 (*curr)->arches = NULL;
1895 (*curr)->next = NULL;
1896 /* When non- multi-arch, install whatever target dump routine we've
1897 been provided - hopefully that routine has been written correctly
1898 and works regardless of multi-arch. */
1899 if (!GDB_MULTI_ARCH && dump_tdep != NULL
1900 && startup_gdbarch.dump_tdep == NULL)
1901 startup_gdbarch.dump_tdep = dump_tdep;
1905 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1906 gdbarch_init_ftype *init)
1908 gdbarch_register (bfd_architecture, init, NULL);
1912 /* Look for an architecture using gdbarch_info. Base search on only
1913 BFD_ARCH_INFO and BYTE_ORDER. */
1915 struct gdbarch_list *
1916 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1917 const struct gdbarch_info *info)
1919 for (; arches != NULL; arches = arches->next)
1921 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1923 if (info->byte_order != arches->gdbarch->byte_order)
1931 /* Update the current architecture. Return ZERO if the update request
1935 gdbarch_update_p (struct gdbarch_info info)
1937 struct gdbarch *new_gdbarch;
1938 struct gdbarch_list **list;
1939 struct gdbarch_registration *rego;
1941 /* Fill in missing parts of the INFO struct using a number of
1942 sources: \`\`set ...''; INFOabfd supplied; existing target. */
1944 /* \`\`(gdb) set architecture ...'' */
1945 if (info.bfd_arch_info == NULL
1946 && !TARGET_ARCHITECTURE_AUTO)
1947 info.bfd_arch_info = TARGET_ARCHITECTURE;
1948 if (info.bfd_arch_info == NULL
1949 && info.abfd != NULL
1950 && bfd_get_arch (info.abfd) != bfd_arch_unknown
1951 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
1952 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
1953 if (info.bfd_arch_info == NULL)
1954 info.bfd_arch_info = TARGET_ARCHITECTURE;
1956 /* \`\`(gdb) set byte-order ...'' */
1957 if (info.byte_order == 0
1958 && !TARGET_BYTE_ORDER_AUTO)
1959 info.byte_order = TARGET_BYTE_ORDER;
1960 /* From the INFO struct. */
1961 if (info.byte_order == 0
1962 && info.abfd != NULL)
1963 info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
1964 : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN
1966 /* From the current target. */
1967 if (info.byte_order == 0)
1968 info.byte_order = TARGET_BYTE_ORDER;
1970 /* Must have found some sort of architecture. */
1971 gdb_assert (info.bfd_arch_info != NULL);
1975 fprintf_unfiltered (gdb_stdlog,
1976 "gdbarch_update: info.bfd_arch_info %s\n",
1977 (info.bfd_arch_info != NULL
1978 ? info.bfd_arch_info->printable_name
1980 fprintf_unfiltered (gdb_stdlog,
1981 "gdbarch_update: info.byte_order %d (%s)\n",
1983 (info.byte_order == BIG_ENDIAN ? "big"
1984 : info.byte_order == LITTLE_ENDIAN ? "little"
1986 fprintf_unfiltered (gdb_stdlog,
1987 "gdbarch_update: info.abfd 0x%lx\n",
1989 fprintf_unfiltered (gdb_stdlog,
1990 "gdbarch_update: info.tdep_info 0x%lx\n",
1991 (long) info.tdep_info);
1994 /* Find the target that knows about this architecture. */
1995 for (rego = gdbarch_registry;
1998 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2003 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2007 /* Ask the target for a replacement architecture. */
2008 new_gdbarch = rego->init (info, rego->arches);
2010 /* Did the target like it? No. Reject the change. */
2011 if (new_gdbarch == NULL)
2014 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2018 /* Did the architecture change? No. Do nothing. */
2019 if (current_gdbarch == new_gdbarch)
2022 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2024 new_gdbarch->bfd_arch_info->printable_name);
2028 /* Swap all data belonging to the old target out */
2029 swapout_gdbarch_swap (current_gdbarch);
2031 /* Is this a pre-existing architecture? Yes. Swap it in. */
2032 for (list = ®o->arches;
2034 list = &(*list)->next)
2036 if ((*list)->gdbarch == new_gdbarch)
2039 fprintf_unfiltered (gdb_stdlog,
2040 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2042 new_gdbarch->bfd_arch_info->printable_name);
2043 current_gdbarch = new_gdbarch;
2044 swapin_gdbarch_swap (new_gdbarch);
2049 /* Append this new architecture to this targets list. */
2050 (*list) = XMALLOC (struct gdbarch_list);
2051 (*list)->next = NULL;
2052 (*list)->gdbarch = new_gdbarch;
2054 /* Switch to this new architecture. Dump it out. */
2055 current_gdbarch = new_gdbarch;
2058 fprintf_unfiltered (gdb_stdlog,
2059 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2061 new_gdbarch->bfd_arch_info->printable_name);
2064 /* Check that the newly installed architecture is valid. Plug in
2065 any post init values. */
2066 new_gdbarch->dump_tdep = rego->dump_tdep;
2067 verify_gdbarch (new_gdbarch);
2069 /* Initialize the per-architecture memory (swap) areas.
2070 CURRENT_GDBARCH must be update before these modules are
2072 init_gdbarch_swap (new_gdbarch);
2074 /* Initialize the per-architecture data-pointer of all parties that
2075 registered an interest in this architecture. CURRENT_GDBARCH
2076 must be updated before these modules are called. */
2077 init_gdbarch_data (new_gdbarch);
2080 gdbarch_dump (current_gdbarch, gdb_stdlog);
2088 /* Pointer to the target-dependent disassembly function. */
2089 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2090 disassemble_info tm_print_insn_info;
2093 extern void _initialize_gdbarch (void);
2096 _initialize_gdbarch (void)
2098 struct cmd_list_element *c;
2100 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2101 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2102 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2103 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2104 tm_print_insn_info.print_address_func = dis_asm_print_address;
2106 add_show_from_set (add_set_cmd ("arch",
2109 (char *)&gdbarch_debug,
2110 "Set architecture debugging.\\n\\
2111 When non-zero, architecture debugging is enabled.", &setdebuglist),
2113 c = add_set_cmd ("archdebug",
2116 (char *)&gdbarch_debug,
2117 "Set architecture debugging.\\n\\
2118 When non-zero, architecture debugging is enabled.", &setlist);
2120 deprecate_cmd (c, "set debug arch");
2121 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2127 #../move-if-change new-gdbarch.c gdbarch.c
2128 compare_new gdbarch.c