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}}\" = \"\
\"
80 m
) staticdefault
="${predefault}" ;;
81 M
) staticdefault
="0" ;;
82 * ) test "${staticdefault}" || staticdefault
=0 ;;
84 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
85 # multi-arch defaults.
86 # test "${predefault}" || predefault=0
88 # come up with a format, use a few guesses for variables
89 case ":${class}:${fmt}:${print}:" in
91 if [ "${returntype}" = int
]
95 elif [ "${returntype}" = long
]
102 test "${fmt}" ||
fmt="%ld"
103 test "${print}" || print
="(long) ${macro}"
105 case "${invalid_p}" in
108 if [ -n "${predefault}" ]
110 #invalid_p="gdbarch->${function} == ${predefault}"
111 valid_p
="gdbarch->${function} != ${predefault}"
113 #invalid_p="gdbarch->${function} == 0"
114 valid_p
="gdbarch->${function} != 0"
117 * ) valid_p
="!(${invalid_p})"
120 # PREDEFAULT is a valid fallback definition of MEMBER when
121 # multi-arch is not enabled. This ensures that the
122 # default value, when multi-arch is the same as the
123 # default value when not multi-arch. POSTDEFAULT is
124 # always a valid definition of MEMBER as this again
125 # ensures consistency.
127 if [ -n "${postdefault}" ]
129 fallbackdefault
="${postdefault}"
130 elif [ -n "${predefault}" ]
132 fallbackdefault
="${predefault}"
137 #NOT YET: See gdbarch.log for basic verification of
152 fallback_default_p
()
154 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
155 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
158 class_is_variable_p
()
166 class_is_function_p
()
169 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
174 class_is_multiarch_p
()
182 class_is_predicate_p
()
185 *F
* |
*V
* |
*M
* ) true
;;
199 # dump out/verify the doco
209 # F -> function + predicate
210 # hiding a function + predicate to test function validity
213 # V -> variable + predicate
214 # hiding a variable + predicate to test variables validity
216 # hiding something from the ``struct info'' object
217 # m -> multi-arch function
218 # hiding a multi-arch function (parameterised with the architecture)
219 # M -> multi-arch function + predicate
220 # hiding a multi-arch function + predicate to test function validity
224 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
225 # LEVEL is a predicate on checking that a given method is
226 # initialized (using INVALID_P).
230 # The name of the MACRO that this method is to be accessed by.
234 # For functions, the return type; for variables, the data type
238 # For functions, the member function name; for variables, the
239 # variable name. Member function names are always prefixed with
240 # ``gdbarch_'' for name-space purity.
244 # The formal argument list. It is assumed that the formal
245 # argument list includes the actual name of each list element.
246 # A function with no arguments shall have ``void'' as the
247 # formal argument list.
251 # The list of actual arguments. The arguments specified shall
252 # match the FORMAL list given above. Functions with out
253 # arguments leave this blank.
257 # Any GCC attributes that should be attached to the function
258 # declaration. At present this field is unused.
262 # To help with the GDB startup a static gdbarch object is
263 # created. STATICDEFAULT is the value to insert into that
264 # static gdbarch object. Since this a static object only
265 # simple expressions can be used.
267 # If STATICDEFAULT is empty, zero is used.
271 # An initial value to assign to MEMBER of the freshly
272 # malloc()ed gdbarch object. After initialization, the
273 # freshly malloc()ed object is passed to the target
274 # architecture code for further updates.
276 # If PREDEFAULT is empty, zero is used.
278 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
279 # INVALID_P are specified, PREDEFAULT will be used as the
280 # default for the non- multi-arch target.
282 # A zero PREDEFAULT function will force the fallback to call
285 # Variable declarations can refer to ``gdbarch'' which will
286 # contain the current architecture. Care should be taken.
290 # A value to assign to MEMBER of the new gdbarch object should
291 # the target architecture code fail to change the PREDEFAULT
294 # If POSTDEFAULT is empty, no post update is performed.
296 # If both INVALID_P and POSTDEFAULT are non-empty then
297 # INVALID_P will be used to determine if MEMBER should be
298 # changed to POSTDEFAULT.
300 # If a non-empty POSTDEFAULT and a zero INVALID_P are
301 # specified, POSTDEFAULT will be used as the default for the
302 # non- multi-arch target (regardless of the value of
305 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
307 # Variable declarations can refer to ``gdbarch'' which will
308 # contain the current architecture. Care should be taken.
312 # A predicate equation that validates MEMBER. Non-zero is
313 # returned if the code creating the new architecture failed to
314 # initialize MEMBER or the initialized the member is invalid.
315 # If POSTDEFAULT is non-empty then MEMBER will be updated to
316 # that value. If POSTDEFAULT is empty then internal_error()
319 # If INVALID_P is empty, a check that MEMBER is no longer
320 # equal to PREDEFAULT is used.
322 # The expression ``0'' disables the INVALID_P check making
323 # PREDEFAULT a legitimate value.
325 # See also PREDEFAULT and POSTDEFAULT.
329 # printf style format string that can be used to print out the
330 # MEMBER. Sometimes "%s" is useful. For functions, this is
331 # ignored and the function address is printed.
333 # If FMT is empty, ``%ld'' is used.
337 # An optional equation that casts MEMBER to a value suitable
338 # for formatting by FMT.
340 # If PRINT is empty, ``(long)'' is used.
344 # An optional indicator for any predicte to wrap around the
347 # () -> Call a custom function to do the dump.
348 # exp -> Wrap print up in ``if (${print_p}) ...
349 # ``'' -> No predicate
351 # If PRINT_P is empty, ``1'' is always used.
364 # See below (DOCO) for description of each field
366 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
368 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
369 # Number of bits in a char or unsigned char for the target machine.
370 # Just like CHAR_BIT in <limits.h> but describes the target machine.
371 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
373 # Number of bits in a short or unsigned short for the target machine.
374 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
375 # Number of bits in an int or unsigned int for the target machine.
376 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
377 # Number of bits in a long or unsigned long for the target machine.
378 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
379 # Number of bits in a long long or unsigned long long for the target
381 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
382 # Number of bits in a float for the target machine.
383 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
384 # Number of bits in a double for the target machine.
385 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
386 # Number of bits in a long double for the target machine.
387 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0
388 # For most targets, a pointer on the target and its representation as an
389 # address in GDB have the same size and "look the same". For such a
390 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
391 # / addr_bit will be set from it.
393 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
394 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
396 # ptr_bit is the size of a pointer on the target
397 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
398 # addr_bit is the size of a target address as represented in gdb
399 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
400 # Number of bits in a BFD_VMA for the target object file format.
401 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
403 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
404 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
406 v::IEEE_FLOAT:int:ieee_float::::0:0::0:::
408 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
409 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
410 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
411 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
412 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
413 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
414 # Function for getting target's idea of a frame pointer. FIXME: GDB's
415 # whole scheme for dealing with "frames" and "frame pointers" needs a
417 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
419 M:::void:register_read:int regnum, char *buf:regnum, buf:
420 M:::void:register_write:int regnum, char *buf:regnum, buf:
422 v:2:NUM_REGS:int:num_regs::::0:-1
423 # This macro gives the number of pseudo-registers that live in the
424 # register namespace but do not get fetched or stored on the target.
425 # These pseudo-registers may be aliases for other registers,
426 # combinations of other registers, or they may be computed by GDB.
427 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
428 v:2:SP_REGNUM:int:sp_regnum::::0:-1
429 v:2:FP_REGNUM:int:fp_regnum::::0:-1
430 v:2:PC_REGNUM:int:pc_regnum::::0:-1
431 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
432 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
433 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
434 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
435 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
436 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
437 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
438 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
439 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
440 # Convert from an sdb register number to an internal gdb register number.
441 # This should be defined in tm.h, if REGISTER_NAMES is not set up
442 # to map one to one onto the sdb register numbers.
443 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
444 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
445 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
446 v:2:REGISTER_SIZE:int:register_size::::0:-1
447 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
448 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
449 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_raw_size:0
450 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
451 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_virtual_size:0
452 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
453 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
454 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
455 # MAP a GDB RAW register number onto a simulator register number. See
456 # also include/...-sim.h.
457 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
458 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
459 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
460 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
462 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
463 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
464 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
465 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
466 v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::gdbarch->call_dummy_breakpoint_offset_p && gdbarch->call_dummy_breakpoint_offset == -1:0x%08lx::CALL_DUMMY_BREAKPOINT_OFFSET_P
467 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
468 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
469 f:1: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
470 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
471 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
472 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
473 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
474 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
475 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
476 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
477 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
479 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
480 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
481 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
482 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
484 f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
485 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
486 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
487 # This function is called when the value of a pseudo-register needs to
488 # be updated. Typically it will be defined on a per-architecture
490 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
491 # This function is called when the value of a pseudo-register needs to
492 # be set or stored. Typically it will be defined on a
493 # per-architecture basis.
494 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
496 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
497 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
498 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
500 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
501 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
502 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
503 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
504 F:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
505 f:2:POP_FRAME:void:pop_frame:void:-:::0
507 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
508 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
509 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
510 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::generic_use_struct_convention::0
512 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
513 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
515 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
516 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
517 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
518 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
519 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
520 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
521 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
522 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
523 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
525 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
527 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
528 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
529 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
530 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
531 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
532 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
533 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
534 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
535 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
537 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
538 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
539 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
540 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
541 v:2:PARM_BOUNDARY:int:parm_boundary
543 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
544 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
545 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown
546 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
547 # On some machines there are bits in addresses which are not really
548 # part of the address, but are used by the kernel, the hardware, etc.
549 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
550 # we get a "real" address such as one would find in a symbol table.
551 # This is used only for addresses of instructions, and even then I'm
552 # not sure it's used in all contexts. It exists to deal with there
553 # being a few stray bits in the PC which would mislead us, not as some
554 # sort of generic thing to handle alignment or segmentation (it's
555 # possible it should be in TARGET_READ_PC instead).
556 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
557 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
558 # the target needs software single step. An ISA method to implement it.
560 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
561 # using the breakpoint system instead of blatting memory directly (as with rs6000).
563 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
564 # single step. If not, then implement single step using breakpoints.
565 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
566 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
567 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
568 # For SVR4 shared libraries, each call goes through a small piece of
569 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
570 # to nonzero if we are current stopped in one of these.
571 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
572 # A target might have problems with watchpoints as soon as the stack
573 # frame of the current function has been destroyed. This mostly happens
574 # as the first action in a funtion's epilogue. in_function_epilogue_p()
575 # is defined to return a non-zero value if either the given addr is one
576 # instruction after the stack destroying instruction up to the trailing
577 # return instruction or if we can figure out that the stack frame has
578 # already been invalidated regardless of the value of addr. Targets
579 # which don't suffer from that problem could just let this functionality
581 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
582 # Given a vector of command-line arguments, return a newly allocated
583 # string which, when passed to the create_inferior function, will be
584 # parsed (on Unix systems, by the shell) to yield the same vector.
585 # This function should call error() if the argument vector is not
586 # representable for this target or if this target does not support
587 # command-line arguments.
588 # ARGC is the number of elements in the vector.
589 # ARGV is an array of strings, one per argument.
590 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
591 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
598 exec > new-gdbarch.log
599 function_list |
while do_read
602 ${class} ${macro}(${actual})
603 ${returntype} ${function} ($formal)${attrib}
607 eval echo \"\ \ \ \
${r}=\
${${r}}\"
609 # #fallbackdefault=${fallbackdefault}
610 # #valid_p=${valid_p}
612 if class_is_predicate_p
&& fallback_default_p
614 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
618 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
620 echo "Error: postdefault is useless when invalid_p=0" 1>&2
624 if class_is_multiarch_p
626 if class_is_predicate_p
; then :
627 elif test "x${predefault}" = "x"
629 echo "Error: pure multi-arch function must have a predefault" 1>&2
638 compare_new gdbarch.log
644 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
646 /* Dynamic architecture support for GDB, the GNU debugger.
647 Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
649 This file is part of GDB.
651 This program is free software; you can redistribute it and/or modify
652 it under the terms of the GNU General Public License as published by
653 the Free Software Foundation; either version 2 of the License, or
654 (at your option) any later version.
656 This program is distributed in the hope that it will be useful,
657 but WITHOUT ANY WARRANTY; without even the implied warranty of
658 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
659 GNU General Public License for more details.
661 You should have received a copy of the GNU General Public License
662 along with this program; if not, write to the Free Software
663 Foundation, Inc., 59 Temple Place - Suite 330,
664 Boston, MA 02111-1307, USA. */
666 /* This file was created with the aid of \`\`gdbarch.sh''.
668 The Bourne shell script \`\`gdbarch.sh'' creates the files
669 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
670 against the existing \`\`gdbarch.[hc]''. Any differences found
673 If editing this file, please also run gdbarch.sh and merge any
674 changes into that script. Conversely, when making sweeping changes
675 to this file, modifying gdbarch.sh and using its output may prove
691 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
693 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
700 extern struct gdbarch *current_gdbarch;
703 /* If any of the following are defined, the target wasn't correctly
707 #if defined (EXTRA_FRAME_INFO)
708 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
713 #if defined (FRAME_FIND_SAVED_REGS)
714 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
718 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
719 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
726 printf "/* The following are pre-initialized by GDBARCH. */\n"
727 function_list |
while do_read
732 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
733 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
734 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
735 printf "#error \"Non multi-arch definition of ${macro}\"\n"
737 printf "#if GDB_MULTI_ARCH\n"
738 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
739 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
748 printf "/* The following are initialized by the target dependent code. */\n"
749 function_list |
while do_read
751 if [ -n "${comment}" ]
753 echo "${comment}" |
sed \
758 if class_is_multiarch_p
760 if class_is_predicate_p
763 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
766 if class_is_predicate_p
769 printf "#if defined (${macro})\n"
770 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
771 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
772 printf "#if !defined (${macro}_P)\n"
773 printf "#define ${macro}_P() (1)\n"
777 printf "/* Default predicate for non- multi-arch targets. */\n"
778 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
779 printf "#define ${macro}_P() (0)\n"
782 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
783 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro}_P)\n"
784 printf "#error \"Non multi-arch definition of ${macro}\"\n"
786 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
787 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
791 if class_is_variable_p
793 if fallback_default_p || class_is_predicate_p
796 printf "/* Default (value) for non- multi-arch platforms. */\n"
797 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
798 echo "#define ${macro} (${fallbackdefault})" \
799 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
803 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
804 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
805 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
806 printf "#error \"Non multi-arch definition of ${macro}\"\n"
808 printf "#if GDB_MULTI_ARCH\n"
809 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
810 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
814 if class_is_function_p
816 if class_is_multiarch_p
; then :
817 elif fallback_default_p || class_is_predicate_p
820 printf "/* Default (function) for non- multi-arch platforms. */\n"
821 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
822 if [ "x${fallbackdefault}" = "x0" ]
824 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
826 # FIXME: Should be passing current_gdbarch through!
827 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
828 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
833 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
835 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
836 elif class_is_multiarch_p
838 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
840 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
842 if [ "x${formal}" = "xvoid" ]
844 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
846 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
848 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
849 if class_is_multiarch_p
; then :
851 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
852 printf "#error \"Non multi-arch definition of ${macro}\"\n"
854 printf "#if GDB_MULTI_ARCH\n"
855 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
856 if [ "x${actual}" = "x" ]
858 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
859 elif [ "x${actual}" = "x-" ]
861 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
863 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
874 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
877 /* Mechanism for co-ordinating the selection of a specific
880 GDB targets (*-tdep.c) can register an interest in a specific
881 architecture. Other GDB components can register a need to maintain
882 per-architecture data.
884 The mechanisms below ensures that there is only a loose connection
885 between the set-architecture command and the various GDB
886 components. Each component can independently register their need
887 to maintain architecture specific data with gdbarch.
891 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
894 The more traditional mega-struct containing architecture specific
895 data for all the various GDB components was also considered. Since
896 GDB is built from a variable number of (fairly independent)
897 components it was determined that the global aproach was not
901 /* Register a new architectural family with GDB.
903 Register support for the specified ARCHITECTURE with GDB. When
904 gdbarch determines that the specified architecture has been
905 selected, the corresponding INIT function is called.
909 The INIT function takes two parameters: INFO which contains the
910 information available to gdbarch about the (possibly new)
911 architecture; ARCHES which is a list of the previously created
912 \`\`struct gdbarch'' for this architecture.
914 The INIT function parameter INFO shall, as far as possible, be
915 pre-initialized with information obtained from INFO.ABFD or
916 previously selected architecture (if similar).
918 The INIT function shall return any of: NULL - indicating that it
919 doesn't recognize the selected architecture; an existing \`\`struct
920 gdbarch'' from the ARCHES list - indicating that the new
921 architecture is just a synonym for an earlier architecture (see
922 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
923 - that describes the selected architecture (see gdbarch_alloc()).
925 The DUMP_TDEP function shall print out all target specific values.
926 Care should be taken to ensure that the function works in both the
927 multi-arch and non- multi-arch cases. */
931 struct gdbarch *gdbarch;
932 struct gdbarch_list *next;
937 /* Use default: NULL (ZERO). */
938 const struct bfd_arch_info *bfd_arch_info;
940 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
943 /* Use default: NULL (ZERO). */
946 /* Use default: NULL (ZERO). */
947 struct gdbarch_tdep_info *tdep_info;
950 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
951 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
953 /* DEPRECATED - use gdbarch_register() */
954 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
956 extern void gdbarch_register (enum bfd_architecture architecture,
957 gdbarch_init_ftype *,
958 gdbarch_dump_tdep_ftype *);
961 /* Return a freshly allocated, NULL terminated, array of the valid
962 architecture names. Since architectures are registered during the
963 _initialize phase this function only returns useful information
964 once initialization has been completed. */
966 extern const char **gdbarch_printable_names (void);
969 /* Helper function. Search the list of ARCHES for a GDBARCH that
970 matches the information provided by INFO. */
972 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
975 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
976 basic initialization using values obtained from the INFO andTDEP
977 parameters. set_gdbarch_*() functions are called to complete the
978 initialization of the object. */
980 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
983 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
984 It is assumed that the caller freeds the \`\`struct
987 extern void gdbarch_free (struct gdbarch *);
990 /* Helper function. Force an update of the current architecture.
992 The actual architecture selected is determined by INFO, \`\`(gdb) set
993 architecture'' et.al., the existing architecture and BFD's default
994 architecture. INFO should be initialized to zero and then selected
995 fields should be updated.
997 Returns non-zero if the update succeeds */
999 extern int gdbarch_update_p (struct gdbarch_info info);
1003 /* Register per-architecture data-pointer.
1005 Reserve space for a per-architecture data-pointer. An identifier
1006 for the reserved data-pointer is returned. That identifer should
1007 be saved in a local static variable.
1009 The per-architecture data-pointer can be initialized in one of two
1010 ways: The value can be set explicitly using a call to
1011 set_gdbarch_data(); the value can be set implicitly using the value
1012 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
1013 called after the basic architecture vector has been created.
1015 When a previously created architecture is re-selected, the
1016 per-architecture data-pointer for that previous architecture is
1017 restored. INIT() is not called.
1019 During initialization, multiple assignments of the data-pointer are
1020 allowed, non-NULL values are deleted by calling FREE(). If the
1021 architecture is deleted using gdbarch_free() all non-NULL data
1022 pointers are also deleted using FREE().
1024 Multiple registrarants for any architecture are allowed (and
1025 strongly encouraged). */
1027 struct gdbarch_data;
1029 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1030 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1032 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1033 gdbarch_data_free_ftype *free);
1034 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1035 struct gdbarch_data *data,
1038 extern void *gdbarch_data (struct gdbarch_data*);
1041 /* Register per-architecture memory region.
1043 Provide a memory-region swap mechanism. Per-architecture memory
1044 region are created. These memory regions are swapped whenever the
1045 architecture is changed. For a new architecture, the memory region
1046 is initialized with zero (0) and the INIT function is called.
1048 Memory regions are swapped / initialized in the order that they are
1049 registered. NULL DATA and/or INIT values can be specified.
1051 New code should use register_gdbarch_data(). */
1053 typedef void (gdbarch_swap_ftype) (void);
1054 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1055 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1059 /* The target-system-dependent byte order is dynamic */
1061 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
1062 is selectable at runtime. The user can use the \`\`set endian''
1063 command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when
1064 target_byte_order should be auto-detected (from the program image
1068 /* Multi-arch GDB is always bi-endian. */
1069 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1072 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
1073 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
1074 when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
1075 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1076 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1078 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
1082 extern int target_byte_order;
1083 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1084 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
1085 and expect defs.h to re-define TARGET_BYTE_ORDER. */
1086 #undef TARGET_BYTE_ORDER
1088 #ifndef TARGET_BYTE_ORDER
1089 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1092 extern int target_byte_order_auto;
1093 #ifndef TARGET_BYTE_ORDER_AUTO
1094 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1099 /* The target-system-dependent BFD architecture is dynamic */
1101 extern int target_architecture_auto;
1102 #ifndef TARGET_ARCHITECTURE_AUTO
1103 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1106 extern const struct bfd_arch_info *target_architecture;
1107 #ifndef TARGET_ARCHITECTURE
1108 #define TARGET_ARCHITECTURE (target_architecture + 0)
1112 /* The target-system-dependent disassembler is semi-dynamic */
1114 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1115 unsigned int len, disassemble_info *info);
1117 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1118 disassemble_info *info);
1120 extern void dis_asm_print_address (bfd_vma addr,
1121 disassemble_info *info);
1123 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1124 extern disassemble_info tm_print_insn_info;
1125 #ifndef TARGET_PRINT_INSN_INFO
1126 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1131 /* Set the dynamic target-system-dependent parameters (architecture,
1132 byte-order, ...) using information found in the BFD */
1134 extern void set_gdbarch_from_file (bfd *);
1137 /* Initialize the current architecture to the "first" one we find on
1140 extern void initialize_current_architecture (void);
1142 /* For non-multiarched targets, do any initialization of the default
1143 gdbarch object necessary after the _initialize_MODULE functions
1145 extern void initialize_non_multiarch ();
1147 /* gdbarch trace variable */
1148 extern int gdbarch_debug;
1150 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1155 #../move-if-change new-gdbarch.h gdbarch.h
1156 compare_new gdbarch.h
1163 exec > new-gdbarch.c
1168 #include "arch-utils.h"
1172 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1174 /* Just include everything in sight so that the every old definition
1175 of macro is visible. */
1176 #include "gdb_string.h"
1180 #include "inferior.h"
1181 #include "breakpoint.h"
1182 #include "gdb_wait.h"
1183 #include "gdbcore.h"
1186 #include "gdbthread.h"
1187 #include "annotate.h"
1188 #include "symfile.h" /* for overlay functions */
1189 #include "value.h" /* For old tm.h/nm.h macros. */
1193 #include "floatformat.h"
1195 #include "gdb_assert.h"
1196 #include "gdb-events.h"
1198 /* Static function declarations */
1200 static void verify_gdbarch (struct gdbarch *gdbarch);
1201 static void alloc_gdbarch_data (struct gdbarch *);
1202 static void init_gdbarch_data (struct gdbarch *);
1203 static void free_gdbarch_data (struct gdbarch *);
1204 static void init_gdbarch_swap (struct gdbarch *);
1205 static void swapout_gdbarch_swap (struct gdbarch *);
1206 static void swapin_gdbarch_swap (struct gdbarch *);
1208 /* Convenience macro for allocting typesafe memory. */
1211 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1215 /* Non-zero if we want to trace architecture code. */
1217 #ifndef GDBARCH_DEBUG
1218 #define GDBARCH_DEBUG 0
1220 int gdbarch_debug = GDBARCH_DEBUG;
1224 # gdbarch open the gdbarch object
1226 printf "/* Maintain the struct gdbarch object */\n"
1228 printf "struct gdbarch\n"
1230 printf " /* basic architectural information */\n"
1231 function_list |
while do_read
1235 printf " ${returntype} ${function};\n"
1239 printf " /* target specific vector. */\n"
1240 printf " struct gdbarch_tdep *tdep;\n"
1241 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1243 printf " /* per-architecture data-pointers */\n"
1244 printf " unsigned nr_data;\n"
1245 printf " void **data;\n"
1247 printf " /* per-architecture swap-regions */\n"
1248 printf " struct gdbarch_swap *swap;\n"
1251 /* Multi-arch values.
1253 When extending this structure you must:
1255 Add the field below.
1257 Declare set/get functions and define the corresponding
1260 gdbarch_alloc(): If zero/NULL is not a suitable default,
1261 initialize the new field.
1263 verify_gdbarch(): Confirm that the target updated the field
1266 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1269 \`\`startup_gdbarch()'': Append an initial value to the static
1270 variable (base values on the host's c-type system).
1272 get_gdbarch(): Implement the set/get functions (probably using
1273 the macro's as shortcuts).
1278 function_list |
while do_read
1280 if class_is_variable_p
1282 printf " ${returntype} ${function};\n"
1283 elif class_is_function_p
1285 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1290 # A pre-initialized vector
1294 /* The default architecture uses host values (for want of a better
1298 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1300 printf "struct gdbarch startup_gdbarch =\n"
1302 printf " /* basic architecture information */\n"
1303 function_list |
while do_read
1307 printf " ${staticdefault},\n"
1311 /* target specific vector and its dump routine */
1313 /*per-architecture data-pointers and swap regions */
1315 /* Multi-arch values */
1317 function_list |
while do_read
1319 if class_is_function_p || class_is_variable_p
1321 printf " ${staticdefault},\n"
1325 /* startup_gdbarch() */
1328 struct gdbarch *current_gdbarch = &startup_gdbarch;
1330 /* Do any initialization needed for a non-multiarch configuration
1331 after the _initialize_MODULE functions have been run. */
1333 initialize_non_multiarch ()
1335 alloc_gdbarch_data (&startup_gdbarch);
1336 init_gdbarch_data (&startup_gdbarch);
1340 # Create a new gdbarch struct
1344 /* Create a new \`\`struct gdbarch'' based on information provided by
1345 \`\`struct gdbarch_info''. */
1350 gdbarch_alloc (const struct gdbarch_info *info,
1351 struct gdbarch_tdep *tdep)
1353 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1354 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1355 the current local architecture and not the previous global
1356 architecture. This ensures that the new architectures initial
1357 values are not influenced by the previous architecture. Once
1358 everything is parameterised with gdbarch, this will go away. */
1359 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1360 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1362 alloc_gdbarch_data (current_gdbarch);
1364 current_gdbarch->tdep = tdep;
1367 function_list |
while do_read
1371 printf " current_gdbarch->${function} = info->${function};\n"
1375 printf " /* Force the explicit initialization of these. */\n"
1376 function_list |
while do_read
1378 if class_is_function_p || class_is_variable_p
1380 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1382 printf " current_gdbarch->${function} = ${predefault};\n"
1387 /* gdbarch_alloc() */
1389 return current_gdbarch;
1393 # Free a gdbarch struct.
1397 /* Free a gdbarch struct. This should never happen in normal
1398 operation --- once you've created a gdbarch, you keep it around.
1399 However, if an architecture's init function encounters an error
1400 building the structure, it may need to clean up a partially
1401 constructed gdbarch. */
1404 gdbarch_free (struct gdbarch *arch)
1406 gdb_assert (arch != NULL);
1407 free_gdbarch_data (arch);
1412 # verify a new architecture
1415 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1419 verify_gdbarch (struct gdbarch *gdbarch)
1421 struct ui_file *log;
1422 struct cleanup *cleanups;
1425 /* Only perform sanity checks on a multi-arch target. */
1426 if (!GDB_MULTI_ARCH)
1428 log = mem_fileopen ();
1429 cleanups = make_cleanup_ui_file_delete (log);
1431 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1432 fprintf_unfiltered (log, "\n\tbyte-order");
1433 if (gdbarch->bfd_arch_info == NULL)
1434 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1435 /* Check those that need to be defined for the given multi-arch level. */
1437 function_list |
while do_read
1439 if class_is_function_p || class_is_variable_p
1441 if [ "x${invalid_p}" = "x0" ]
1443 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1444 elif class_is_predicate_p
1446 printf " /* Skip verify of ${function}, has predicate */\n"
1447 # FIXME: See do_read for potential simplification
1448 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1450 printf " if (${invalid_p})\n"
1451 printf " gdbarch->${function} = ${postdefault};\n"
1452 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1454 printf " if (gdbarch->${function} == ${predefault})\n"
1455 printf " gdbarch->${function} = ${postdefault};\n"
1456 elif [ -n "${postdefault}" ]
1458 printf " if (gdbarch->${function} == 0)\n"
1459 printf " gdbarch->${function} = ${postdefault};\n"
1460 elif [ -n "${invalid_p}" ]
1462 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1463 printf " && (${invalid_p}))\n"
1464 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1465 elif [ -n "${predefault}" ]
1467 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1468 printf " && (gdbarch->${function} == ${predefault}))\n"
1469 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1474 buf = ui_file_xstrdup (log, &dummy);
1475 make_cleanup (xfree, buf);
1476 if (strlen (buf) > 0)
1477 internal_error (__FILE__, __LINE__,
1478 "verify_gdbarch: the following are invalid ...%s",
1480 do_cleanups (cleanups);
1484 # dump the structure
1488 /* Print out the details of the current architecture. */
1490 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1491 just happens to match the global variable \`\`current_gdbarch''. That
1492 way macros refering to that variable get the local and not the global
1493 version - ulgh. Once everything is parameterised with gdbarch, this
1497 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1499 fprintf_unfiltered (file,
1500 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1503 function_list |
sort -t: +2 |
while do_read
1505 # multiarch functions don't have macros.
1506 if class_is_multiarch_p
1508 printf " if (GDB_MULTI_ARCH)\n"
1509 printf " fprintf_unfiltered (file,\n"
1510 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1511 printf " (long) current_gdbarch->${function});\n"
1514 # Print the macro definition.
1515 printf "#ifdef ${macro}\n"
1516 if [ "x${returntype}" = "xvoid" ]
1518 printf "#if GDB_MULTI_ARCH\n"
1519 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1521 if class_is_function_p
1523 printf " fprintf_unfiltered (file,\n"
1524 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1525 printf " \"${macro}(${actual})\",\n"
1526 printf " XSTRING (${macro} (${actual})));\n"
1528 printf " fprintf_unfiltered (file,\n"
1529 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1530 printf " XSTRING (${macro}));\n"
1532 # Print the architecture vector value
1533 if [ "x${returntype}" = "xvoid" ]
1537 if [ "x${print_p}" = "x()" ]
1539 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1540 elif [ "x${print_p}" = "x0" ]
1542 printf " /* skip print of ${macro}, print_p == 0. */\n"
1543 elif [ -n "${print_p}" ]
1545 printf " if (${print_p})\n"
1546 printf " fprintf_unfiltered (file,\n"
1547 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1548 printf " ${print});\n"
1549 elif class_is_function_p
1551 printf " if (GDB_MULTI_ARCH)\n"
1552 printf " fprintf_unfiltered (file,\n"
1553 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1554 printf " (long) current_gdbarch->${function}\n"
1555 printf " /*${macro} ()*/);\n"
1557 printf " fprintf_unfiltered (file,\n"
1558 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1559 printf " ${print});\n"
1564 if (current_gdbarch->dump_tdep != NULL)
1565 current_gdbarch->dump_tdep (current_gdbarch, file);
1573 struct gdbarch_tdep *
1574 gdbarch_tdep (struct gdbarch *gdbarch)
1576 if (gdbarch_debug >= 2)
1577 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1578 return gdbarch->tdep;
1582 function_list |
while do_read
1584 if class_is_predicate_p
1588 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1590 if [ -n "${valid_p}" ]
1592 printf " return ${valid_p};\n"
1594 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1598 if class_is_function_p
1601 printf "${returntype}\n"
1602 if [ "x${formal}" = "xvoid" ]
1604 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1606 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1609 printf " if (gdbarch->${function} == 0)\n"
1610 printf " internal_error (__FILE__, __LINE__,\n"
1611 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1612 printf " if (gdbarch_debug >= 2)\n"
1613 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1614 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1616 if class_is_multiarch_p
1623 if class_is_multiarch_p
1625 params
="gdbarch, ${actual}"
1630 if [ "x${returntype}" = "xvoid" ]
1632 printf " gdbarch->${function} (${params});\n"
1634 printf " return gdbarch->${function} (${params});\n"
1639 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1640 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1642 printf " gdbarch->${function} = ${function};\n"
1644 elif class_is_variable_p
1647 printf "${returntype}\n"
1648 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1650 if [ "x${invalid_p}" = "x0" ]
1652 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1653 elif [ -n "${invalid_p}" ]
1655 printf " if (${invalid_p})\n"
1656 printf " internal_error (__FILE__, __LINE__,\n"
1657 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1658 elif [ -n "${predefault}" ]
1660 printf " if (gdbarch->${function} == ${predefault})\n"
1661 printf " internal_error (__FILE__, __LINE__,\n"
1662 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1664 printf " if (gdbarch_debug >= 2)\n"
1665 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1666 printf " return gdbarch->${function};\n"
1670 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1671 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1673 printf " gdbarch->${function} = ${function};\n"
1675 elif class_is_info_p
1678 printf "${returntype}\n"
1679 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1681 printf " if (gdbarch_debug >= 2)\n"
1682 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1683 printf " return gdbarch->${function};\n"
1688 # All the trailing guff
1692 /* Keep a registry of per-architecture data-pointers required by GDB
1698 gdbarch_data_init_ftype *init;
1699 gdbarch_data_free_ftype *free;
1702 struct gdbarch_data_registration
1704 struct gdbarch_data *data;
1705 struct gdbarch_data_registration *next;
1708 struct gdbarch_data_registry
1711 struct gdbarch_data_registration *registrations;
1714 struct gdbarch_data_registry gdbarch_data_registry =
1719 struct gdbarch_data *
1720 register_gdbarch_data (gdbarch_data_init_ftype *init,
1721 gdbarch_data_free_ftype *free)
1723 struct gdbarch_data_registration **curr;
1724 for (curr = &gdbarch_data_registry.registrations;
1726 curr = &(*curr)->next);
1727 (*curr) = XMALLOC (struct gdbarch_data_registration);
1728 (*curr)->next = NULL;
1729 (*curr)->data = XMALLOC (struct gdbarch_data);
1730 (*curr)->data->index = gdbarch_data_registry.nr++;
1731 (*curr)->data->init = init;
1732 (*curr)->data->free = free;
1733 return (*curr)->data;
1737 /* Walk through all the registered users initializing each in turn. */
1740 init_gdbarch_data (struct gdbarch *gdbarch)
1742 struct gdbarch_data_registration *rego;
1743 for (rego = gdbarch_data_registry.registrations;
1747 struct gdbarch_data *data = rego->data;
1748 gdb_assert (data->index < gdbarch->nr_data);
1749 if (data->init != NULL)
1751 void *pointer = data->init (gdbarch);
1752 set_gdbarch_data (gdbarch, data, pointer);
1757 /* Create/delete the gdbarch data vector. */
1760 alloc_gdbarch_data (struct gdbarch *gdbarch)
1762 gdb_assert (gdbarch->data == NULL);
1763 gdbarch->nr_data = gdbarch_data_registry.nr;
1764 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1768 free_gdbarch_data (struct gdbarch *gdbarch)
1770 struct gdbarch_data_registration *rego;
1771 gdb_assert (gdbarch->data != NULL);
1772 for (rego = gdbarch_data_registry.registrations;
1776 struct gdbarch_data *data = rego->data;
1777 gdb_assert (data->index < gdbarch->nr_data);
1778 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1780 data->free (gdbarch, gdbarch->data[data->index]);
1781 gdbarch->data[data->index] = NULL;
1784 xfree (gdbarch->data);
1785 gdbarch->data = NULL;
1789 /* Initialize the current value of thee specified per-architecture
1793 set_gdbarch_data (struct gdbarch *gdbarch,
1794 struct gdbarch_data *data,
1797 gdb_assert (data->index < gdbarch->nr_data);
1798 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1799 data->free (gdbarch, gdbarch->data[data->index]);
1800 gdbarch->data[data->index] = pointer;
1803 /* Return the current value of the specified per-architecture
1807 gdbarch_data (struct gdbarch_data *data)
1809 gdb_assert (data->index < current_gdbarch->nr_data);
1810 return current_gdbarch->data[data->index];
1815 /* Keep a registry of swapped data required by GDB modules. */
1820 struct gdbarch_swap_registration *source;
1821 struct gdbarch_swap *next;
1824 struct gdbarch_swap_registration
1827 unsigned long sizeof_data;
1828 gdbarch_swap_ftype *init;
1829 struct gdbarch_swap_registration *next;
1832 struct gdbarch_swap_registry
1835 struct gdbarch_swap_registration *registrations;
1838 struct gdbarch_swap_registry gdbarch_swap_registry =
1844 register_gdbarch_swap (void *data,
1845 unsigned long sizeof_data,
1846 gdbarch_swap_ftype *init)
1848 struct gdbarch_swap_registration **rego;
1849 for (rego = &gdbarch_swap_registry.registrations;
1851 rego = &(*rego)->next);
1852 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1853 (*rego)->next = NULL;
1854 (*rego)->init = init;
1855 (*rego)->data = data;
1856 (*rego)->sizeof_data = sizeof_data;
1861 init_gdbarch_swap (struct gdbarch *gdbarch)
1863 struct gdbarch_swap_registration *rego;
1864 struct gdbarch_swap **curr = &gdbarch->swap;
1865 for (rego = gdbarch_swap_registry.registrations;
1869 if (rego->data != NULL)
1871 (*curr) = XMALLOC (struct gdbarch_swap);
1872 (*curr)->source = rego;
1873 (*curr)->swap = xmalloc (rego->sizeof_data);
1874 (*curr)->next = NULL;
1875 memset (rego->data, 0, rego->sizeof_data);
1876 curr = &(*curr)->next;
1878 if (rego->init != NULL)
1884 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1886 struct gdbarch_swap *curr;
1887 for (curr = gdbarch->swap;
1890 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1894 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1896 struct gdbarch_swap *curr;
1897 for (curr = gdbarch->swap;
1900 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1904 /* Keep a registry of the architectures known by GDB. */
1906 struct gdbarch_registration
1908 enum bfd_architecture bfd_architecture;
1909 gdbarch_init_ftype *init;
1910 gdbarch_dump_tdep_ftype *dump_tdep;
1911 struct gdbarch_list *arches;
1912 struct gdbarch_registration *next;
1915 static struct gdbarch_registration *gdbarch_registry = NULL;
1918 append_name (const char ***buf, int *nr, const char *name)
1920 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1926 gdbarch_printable_names (void)
1930 /* Accumulate a list of names based on the registed list of
1932 enum bfd_architecture a;
1934 const char **arches = NULL;
1935 struct gdbarch_registration *rego;
1936 for (rego = gdbarch_registry;
1940 const struct bfd_arch_info *ap;
1941 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1943 internal_error (__FILE__, __LINE__,
1944 "gdbarch_architecture_names: multi-arch unknown");
1947 append_name (&arches, &nr_arches, ap->printable_name);
1952 append_name (&arches, &nr_arches, NULL);
1956 /* Just return all the architectures that BFD knows. Assume that
1957 the legacy architecture framework supports them. */
1958 return bfd_arch_list ();
1963 gdbarch_register (enum bfd_architecture bfd_architecture,
1964 gdbarch_init_ftype *init,
1965 gdbarch_dump_tdep_ftype *dump_tdep)
1967 struct gdbarch_registration **curr;
1968 const struct bfd_arch_info *bfd_arch_info;
1969 /* Check that BFD recognizes this architecture */
1970 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1971 if (bfd_arch_info == NULL)
1973 internal_error (__FILE__, __LINE__,
1974 "gdbarch: Attempt to register unknown architecture (%d)",
1977 /* Check that we haven't seen this architecture before */
1978 for (curr = &gdbarch_registry;
1980 curr = &(*curr)->next)
1982 if (bfd_architecture == (*curr)->bfd_architecture)
1983 internal_error (__FILE__, __LINE__,
1984 "gdbarch: Duplicate registraration of architecture (%s)",
1985 bfd_arch_info->printable_name);
1989 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1990 bfd_arch_info->printable_name,
1993 (*curr) = XMALLOC (struct gdbarch_registration);
1994 (*curr)->bfd_architecture = bfd_architecture;
1995 (*curr)->init = init;
1996 (*curr)->dump_tdep = dump_tdep;
1997 (*curr)->arches = NULL;
1998 (*curr)->next = NULL;
1999 /* When non- multi-arch, install whatever target dump routine we've
2000 been provided - hopefully that routine has been written correctly
2001 and works regardless of multi-arch. */
2002 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2003 && startup_gdbarch.dump_tdep == NULL)
2004 startup_gdbarch.dump_tdep = dump_tdep;
2008 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2009 gdbarch_init_ftype *init)
2011 gdbarch_register (bfd_architecture, init, NULL);
2015 /* Look for an architecture using gdbarch_info. Base search on only
2016 BFD_ARCH_INFO and BYTE_ORDER. */
2018 struct gdbarch_list *
2019 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2020 const struct gdbarch_info *info)
2022 for (; arches != NULL; arches = arches->next)
2024 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2026 if (info->byte_order != arches->gdbarch->byte_order)
2034 /* Update the current architecture. Return ZERO if the update request
2038 gdbarch_update_p (struct gdbarch_info info)
2040 struct gdbarch *new_gdbarch;
2041 struct gdbarch_list **list;
2042 struct gdbarch_registration *rego;
2044 /* Fill in missing parts of the INFO struct using a number of
2045 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2047 /* \`\`(gdb) set architecture ...'' */
2048 if (info.bfd_arch_info == NULL
2049 && !TARGET_ARCHITECTURE_AUTO)
2050 info.bfd_arch_info = TARGET_ARCHITECTURE;
2051 if (info.bfd_arch_info == NULL
2052 && info.abfd != NULL
2053 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2054 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2055 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2056 if (info.bfd_arch_info == NULL)
2057 info.bfd_arch_info = TARGET_ARCHITECTURE;
2059 /* \`\`(gdb) set byte-order ...'' */
2060 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2061 && !TARGET_BYTE_ORDER_AUTO)
2062 info.byte_order = TARGET_BYTE_ORDER;
2063 /* From the INFO struct. */
2064 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2065 && info.abfd != NULL)
2066 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2067 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2068 : BFD_ENDIAN_UNKNOWN);
2069 /* From the current target. */
2070 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2071 info.byte_order = TARGET_BYTE_ORDER;
2073 /* Must have found some sort of architecture. */
2074 gdb_assert (info.bfd_arch_info != NULL);
2078 fprintf_unfiltered (gdb_stdlog,
2079 "gdbarch_update: info.bfd_arch_info %s\n",
2080 (info.bfd_arch_info != NULL
2081 ? info.bfd_arch_info->printable_name
2083 fprintf_unfiltered (gdb_stdlog,
2084 "gdbarch_update: info.byte_order %d (%s)\n",
2086 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2087 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2089 fprintf_unfiltered (gdb_stdlog,
2090 "gdbarch_update: info.abfd 0x%lx\n",
2092 fprintf_unfiltered (gdb_stdlog,
2093 "gdbarch_update: info.tdep_info 0x%lx\n",
2094 (long) info.tdep_info);
2097 /* Find the target that knows about this architecture. */
2098 for (rego = gdbarch_registry;
2101 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2106 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2110 /* Ask the target for a replacement architecture. */
2111 new_gdbarch = rego->init (info, rego->arches);
2113 /* Did the target like it? No. Reject the change. */
2114 if (new_gdbarch == NULL)
2117 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2121 /* Did the architecture change? No. Do nothing. */
2122 if (current_gdbarch == new_gdbarch)
2125 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2127 new_gdbarch->bfd_arch_info->printable_name);
2131 /* Swap all data belonging to the old target out */
2132 swapout_gdbarch_swap (current_gdbarch);
2134 /* Is this a pre-existing architecture? Yes. Swap it in. */
2135 for (list = ®o->arches;
2137 list = &(*list)->next)
2139 if ((*list)->gdbarch == new_gdbarch)
2142 fprintf_unfiltered (gdb_stdlog,
2143 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2145 new_gdbarch->bfd_arch_info->printable_name);
2146 current_gdbarch = new_gdbarch;
2147 swapin_gdbarch_swap (new_gdbarch);
2148 architecture_changed_event ();
2153 /* Append this new architecture to this targets list. */
2154 (*list) = XMALLOC (struct gdbarch_list);
2155 (*list)->next = NULL;
2156 (*list)->gdbarch = new_gdbarch;
2158 /* Switch to this new architecture. Dump it out. */
2159 current_gdbarch = new_gdbarch;
2162 fprintf_unfiltered (gdb_stdlog,
2163 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2165 new_gdbarch->bfd_arch_info->printable_name);
2168 /* Check that the newly installed architecture is valid. Plug in
2169 any post init values. */
2170 new_gdbarch->dump_tdep = rego->dump_tdep;
2171 verify_gdbarch (new_gdbarch);
2173 /* Initialize the per-architecture memory (swap) areas.
2174 CURRENT_GDBARCH must be update before these modules are
2176 init_gdbarch_swap (new_gdbarch);
2178 /* Initialize the per-architecture data-pointer of all parties that
2179 registered an interest in this architecture. CURRENT_GDBARCH
2180 must be updated before these modules are called. */
2181 init_gdbarch_data (new_gdbarch);
2182 architecture_changed_event ();
2185 gdbarch_dump (current_gdbarch, gdb_stdlog);
2193 /* Pointer to the target-dependent disassembly function. */
2194 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2195 disassemble_info tm_print_insn_info;
2198 extern void _initialize_gdbarch (void);
2201 _initialize_gdbarch (void)
2203 struct cmd_list_element *c;
2205 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2206 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2207 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2208 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2209 tm_print_insn_info.print_address_func = dis_asm_print_address;
2211 add_show_from_set (add_set_cmd ("arch",
2214 (char *)&gdbarch_debug,
2215 "Set architecture debugging.\\n\\
2216 When non-zero, architecture debugging is enabled.", &setdebuglist),
2218 c = add_set_cmd ("archdebug",
2221 (char *)&gdbarch_debug,
2222 "Set architecture debugging.\\n\\
2223 When non-zero, architecture debugging is enabled.", &setlist);
2225 deprecate_cmd (c, "set debug arch");
2226 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2232 #../move-if-change new-gdbarch.c gdbarch.c
2233 compare_new gdbarch.c