3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001, 2002 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 -u ${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 1 ) gt_level
=">= GDB_MULTI_ARCH_PARTIAL" ;;
81 2 ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
83 * ) error
"Error: bad level for ${function}" 1>&2 ; kill $$
; exit 1 ;;
87 m
) staticdefault
="${predefault}" ;;
88 M
) staticdefault
="0" ;;
89 * ) test "${staticdefault}" || staticdefault
=0 ;;
91 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
92 # multi-arch defaults.
93 # test "${predefault}" || predefault=0
95 # come up with a format, use a few guesses for variables
96 case ":${class}:${fmt}:${print}:" in
98 if [ "${returntype}" = int
]
102 elif [ "${returntype}" = long
]
109 test "${fmt}" ||
fmt="%ld"
110 test "${print}" || print
="(long) ${macro}"
112 case "${invalid_p}" in
115 if [ -n "${predefault}" ]
117 #invalid_p="gdbarch->${function} == ${predefault}"
118 valid_p
="gdbarch->${function} != ${predefault}"
120 #invalid_p="gdbarch->${function} == 0"
121 valid_p
="gdbarch->${function} != 0"
124 * ) valid_p
="!(${invalid_p})"
127 # PREDEFAULT is a valid fallback definition of MEMBER when
128 # multi-arch is not enabled. This ensures that the
129 # default value, when multi-arch is the same as the
130 # default value when not multi-arch. POSTDEFAULT is
131 # always a valid definition of MEMBER as this again
132 # ensures consistency.
134 if [ -n "${postdefault}" ]
136 fallbackdefault
="${postdefault}"
137 elif [ -n "${predefault}" ]
139 fallbackdefault
="${predefault}"
144 #NOT YET: See gdbarch.log for basic verification of
159 fallback_default_p
()
161 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
162 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
165 class_is_variable_p
()
173 class_is_function_p
()
176 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
181 class_is_multiarch_p
()
189 class_is_predicate_p
()
192 *F
* |
*V
* |
*M
* ) true
;;
206 # dump out/verify the doco
216 # F -> function + predicate
217 # hiding a function + predicate to test function validity
220 # V -> variable + predicate
221 # hiding a variable + predicate to test variables validity
223 # hiding something from the ``struct info'' object
224 # m -> multi-arch function
225 # hiding a multi-arch function (parameterised with the architecture)
226 # M -> multi-arch function + predicate
227 # hiding a multi-arch function + predicate to test function validity
231 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
232 # LEVEL is a predicate on checking that a given method is
233 # initialized (using INVALID_P).
237 # The name of the MACRO that this method is to be accessed by.
241 # For functions, the return type; for variables, the data type
245 # For functions, the member function name; for variables, the
246 # variable name. Member function names are always prefixed with
247 # ``gdbarch_'' for name-space purity.
251 # The formal argument list. It is assumed that the formal
252 # argument list includes the actual name of each list element.
253 # A function with no arguments shall have ``void'' as the
254 # formal argument list.
258 # The list of actual arguments. The arguments specified shall
259 # match the FORMAL list given above. Functions with out
260 # arguments leave this blank.
264 # Any GCC attributes that should be attached to the function
265 # declaration. At present this field is unused.
269 # To help with the GDB startup a static gdbarch object is
270 # created. STATICDEFAULT is the value to insert into that
271 # static gdbarch object. Since this a static object only
272 # simple expressions can be used.
274 # If STATICDEFAULT is empty, zero is used.
278 # An initial value to assign to MEMBER of the freshly
279 # malloc()ed gdbarch object. After initialization, the
280 # freshly malloc()ed object is passed to the target
281 # architecture code for further updates.
283 # If PREDEFAULT is empty, zero is used.
285 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
286 # INVALID_P are specified, PREDEFAULT will be used as the
287 # default for the non- multi-arch target.
289 # A zero PREDEFAULT function will force the fallback to call
292 # Variable declarations can refer to ``gdbarch'' which will
293 # contain the current architecture. Care should be taken.
297 # A value to assign to MEMBER of the new gdbarch object should
298 # the target architecture code fail to change the PREDEFAULT
301 # If POSTDEFAULT is empty, no post update is performed.
303 # If both INVALID_P and POSTDEFAULT are non-empty then
304 # INVALID_P will be used to determine if MEMBER should be
305 # changed to POSTDEFAULT.
307 # If a non-empty POSTDEFAULT and a zero INVALID_P are
308 # specified, POSTDEFAULT will be used as the default for the
309 # non- multi-arch target (regardless of the value of
312 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
314 # Variable declarations can refer to ``gdbarch'' which will
315 # contain the current architecture. Care should be taken.
319 # A predicate equation that validates MEMBER. Non-zero is
320 # returned if the code creating the new architecture failed to
321 # initialize MEMBER or the initialized the member is invalid.
322 # If POSTDEFAULT is non-empty then MEMBER will be updated to
323 # that value. If POSTDEFAULT is empty then internal_error()
326 # If INVALID_P is empty, a check that MEMBER is no longer
327 # equal to PREDEFAULT is used.
329 # The expression ``0'' disables the INVALID_P check making
330 # PREDEFAULT a legitimate value.
332 # See also PREDEFAULT and POSTDEFAULT.
336 # printf style format string that can be used to print out the
337 # MEMBER. Sometimes "%s" is useful. For functions, this is
338 # ignored and the function address is printed.
340 # If FMT is empty, ``%ld'' is used.
344 # An optional equation that casts MEMBER to a value suitable
345 # for formatting by FMT.
347 # If PRINT is empty, ``(long)'' is used.
351 # An optional indicator for any predicte to wrap around the
354 # () -> Call a custom function to do the dump.
355 # exp -> Wrap print up in ``if (${print_p}) ...
356 # ``'' -> No predicate
358 # If PRINT_P is empty, ``1'' is always used.
365 echo "Bad field ${field}"
373 # See below (DOCO) for description of each field
375 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
377 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
378 # Number of bits in a char or unsigned char for the target machine.
379 # Just like CHAR_BIT in <limits.h> but describes the target machine.
380 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
382 # Number of bits in a short or unsigned short for the target machine.
383 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
384 # Number of bits in an int or unsigned int for the target machine.
385 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
386 # Number of bits in a long or unsigned long for the target machine.
387 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
388 # Number of bits in a long long or unsigned long long for the target
390 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
391 # Number of bits in a float for the target machine.
392 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
393 # Number of bits in a double for the target machine.
394 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
395 # Number of bits in a long double for the target machine.
396 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
397 # For most targets, a pointer on the target and its representation as an
398 # address in GDB have the same size and "look the same". For such a
399 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
400 # / addr_bit will be set from it.
402 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
403 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
405 # ptr_bit is the size of a pointer on the target
406 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
407 # addr_bit is the size of a target address as represented in gdb
408 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
409 # Number of bits in a BFD_VMA for the target object file format.
410 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
412 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
413 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
415 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
416 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
417 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
418 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
419 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
420 # Function for getting target's idea of a frame pointer. FIXME: GDB's
421 # whole scheme for dealing with "frames" and "frame pointers" needs a
423 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
425 M:::void:register_read:int regnum, char *buf:regnum, buf:
426 M:::void:register_write:int regnum, char *buf:regnum, buf:
428 v:2:NUM_REGS:int:num_regs::::0:-1
429 # This macro gives the number of pseudo-registers that live in the
430 # register namespace but do not get fetched or stored on the target.
431 # These pseudo-registers may be aliases for other registers,
432 # combinations of other registers, or they may be computed by GDB.
433 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
435 # GDB's standard (or well known) register numbers. These can map onto
436 # a real register or a pseudo (computed) register or not be defined at
438 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
439 v:2:FP_REGNUM:int:fp_regnum::::-1:-1::0
440 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
441 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
442 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
443 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
444 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
445 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
446 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
447 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
448 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
449 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
450 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
451 # Convert from an sdb register number to an internal gdb register number.
452 # This should be defined in tm.h, if REGISTER_NAMES is not set up
453 # to map one to one onto the sdb register numbers.
454 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
455 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
456 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
457 v:2:REGISTER_SIZE:int:register_size::::0:-1
458 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
459 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
460 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_raw_size:0
461 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
462 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_virtual_size:0
463 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
464 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
465 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
466 f:2:PRINT_FLOAT_INFO:void:print_float_info:void::::default_print_float_info::0
467 # MAP a GDB RAW register number onto a simulator register number. See
468 # also include/...-sim.h.
469 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
470 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
471 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
472 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
473 # setjmp/longjmp support.
474 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
476 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
477 # much better but at least they are vaguely consistent). The headers
478 # and body contain convoluted #if/#else sequences for determine how
479 # things should be compiled. Instead of trying to mimic that
480 # behaviour here (and hence entrench it further) gdbarch simply
481 # reqires that these methods be set up from the word go. This also
482 # avoids any potential problems with moving beyond multi-arch partial.
483 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
484 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
485 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
486 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
487 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
488 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
489 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
490 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
491 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
492 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
493 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
494 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
495 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
496 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
497 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
498 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
500 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
501 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
502 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
503 # GET_SAVED_REGISTER is like DUMMY_FRAMES. It is at level one as the
504 # old code has strange #ifdef interaction. So far no one has found
505 # that default_get_saved_register() is the default they are after.
506 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
508 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
509 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
510 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
511 # This function is called when the value of a pseudo-register needs to
512 # be updated. Typically it will be defined on a per-architecture
514 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
515 # This function is called when the value of a pseudo-register needs to
516 # be set or stored. Typically it will be defined on a
517 # per-architecture basis.
518 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
520 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
521 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
522 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
524 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
525 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
526 f:2:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr:::default_push_arguments::0
527 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
528 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
529 f:2:POP_FRAME:void:pop_frame:void:-:::0
531 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
532 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
533 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
534 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
536 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
537 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
539 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
540 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
541 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
542 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
543 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
544 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
545 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
546 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
547 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
549 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
551 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
552 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
553 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
554 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
555 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
556 # given frame is the outermost one and has no caller.
558 # XXXX - both default and alternate frame_chain_valid functions are
559 # deprecated. New code should use dummy frames and one of the generic
561 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::func_frame_chain_valid::0
562 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
563 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
564 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
565 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
566 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
568 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
569 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
570 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
571 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
572 v:2:PARM_BOUNDARY:int:parm_boundary
574 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
575 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
576 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
577 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
578 # On some machines there are bits in addresses which are not really
579 # part of the address, but are used by the kernel, the hardware, etc.
580 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
581 # we get a "real" address such as one would find in a symbol table.
582 # This is used only for addresses of instructions, and even then I'm
583 # not sure it's used in all contexts. It exists to deal with there
584 # being a few stray bits in the PC which would mislead us, not as some
585 # sort of generic thing to handle alignment or segmentation (it's
586 # possible it should be in TARGET_READ_PC instead).
587 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
588 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
590 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
591 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
592 # the target needs software single step. An ISA method to implement it.
594 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
595 # using the breakpoint system instead of blatting memory directly (as with rs6000).
597 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
598 # single step. If not, then implement single step using breakpoints.
599 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
600 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
601 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
602 # For SVR4 shared libraries, each call goes through a small piece of
603 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
604 # to nonzero if we are current stopped in one of these.
605 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
606 # A target might have problems with watchpoints as soon as the stack
607 # frame of the current function has been destroyed. This mostly happens
608 # as the first action in a funtion's epilogue. in_function_epilogue_p()
609 # is defined to return a non-zero value if either the given addr is one
610 # instruction after the stack destroying instruction up to the trailing
611 # return instruction or if we can figure out that the stack frame has
612 # already been invalidated regardless of the value of addr. Targets
613 # which don't suffer from that problem could just let this functionality
615 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
616 # Given a vector of command-line arguments, return a newly allocated
617 # string which, when passed to the create_inferior function, will be
618 # parsed (on Unix systems, by the shell) to yield the same vector.
619 # This function should call error() if the argument vector is not
620 # representable for this target or if this target does not support
621 # command-line arguments.
622 # ARGC is the number of elements in the vector.
623 # ARGV is an array of strings, one per argument.
624 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
625 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
626 f:2:ELF_MAKE_MSYMBOL_SPECIAL:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym:::default_elf_make_msymbol_special::0
627 f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0
634 exec > new-gdbarch.log
635 function_list |
while do_read
638 ${class} ${macro}(${actual})
639 ${returntype} ${function} ($formal)${attrib}
643 eval echo \"\ \ \ \
${r}=\
${${r}}\"
645 # #fallbackdefault=${fallbackdefault}
646 # #valid_p=${valid_p}
648 if class_is_predicate_p
&& fallback_default_p
650 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
654 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
656 echo "Error: postdefault is useless when invalid_p=0" 1>&2
660 if class_is_multiarch_p
662 if class_is_predicate_p
; then :
663 elif test "x${predefault}" = "x"
665 echo "Error: pure multi-arch function must have a predefault" 1>&2
674 compare_new gdbarch.log
680 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
682 /* Dynamic architecture support for GDB, the GNU debugger.
683 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
685 This file is part of GDB.
687 This program is free software; you can redistribute it and/or modify
688 it under the terms of the GNU General Public License as published by
689 the Free Software Foundation; either version 2 of the License, or
690 (at your option) any later version.
692 This program is distributed in the hope that it will be useful,
693 but WITHOUT ANY WARRANTY; without even the implied warranty of
694 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
695 GNU General Public License for more details.
697 You should have received a copy of the GNU General Public License
698 along with this program; if not, write to the Free Software
699 Foundation, Inc., 59 Temple Place - Suite 330,
700 Boston, MA 02111-1307, USA. */
702 /* This file was created with the aid of \`\`gdbarch.sh''.
704 The Bourne shell script \`\`gdbarch.sh'' creates the files
705 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
706 against the existing \`\`gdbarch.[hc]''. Any differences found
709 If editing this file, please also run gdbarch.sh and merge any
710 changes into that script. Conversely, when making sweeping changes
711 to this file, modifying gdbarch.sh and using its output may prove
727 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
729 /* Pull in function declarations refered to, indirectly, via macros. */
730 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
731 #include "inferior.h" /* For unsigned_address_to_pointer(). */
737 struct minimal_symbol;
739 extern struct gdbarch *current_gdbarch;
742 /* If any of the following are defined, the target wasn't correctly
746 #if defined (EXTRA_FRAME_INFO)
747 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
752 #if defined (FRAME_FIND_SAVED_REGS)
753 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
757 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
758 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
765 printf "/* The following are pre-initialized by GDBARCH. */\n"
766 function_list |
while do_read
771 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
772 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
773 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
774 printf "#error \"Non multi-arch definition of ${macro}\"\n"
776 printf "#if GDB_MULTI_ARCH\n"
777 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
778 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
787 printf "/* The following are initialized by the target dependent code. */\n"
788 function_list |
while do_read
790 if [ -n "${comment}" ]
792 echo "${comment}" |
sed \
797 if class_is_multiarch_p
799 if class_is_predicate_p
802 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
805 if class_is_predicate_p
808 printf "#if defined (${macro})\n"
809 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
810 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
811 printf "#if !defined (${macro}_P)\n"
812 printf "#define ${macro}_P() (1)\n"
816 printf "/* Default predicate for non- multi-arch targets. */\n"
817 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
818 printf "#define ${macro}_P() (0)\n"
821 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
822 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
823 printf "#error \"Non multi-arch definition of ${macro}\"\n"
825 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
826 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
830 if class_is_variable_p
832 if fallback_default_p || class_is_predicate_p
835 printf "/* Default (value) for non- multi-arch platforms. */\n"
836 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
837 echo "#define ${macro} (${fallbackdefault})" \
838 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
842 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
843 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
844 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
845 printf "#error \"Non multi-arch definition of ${macro}\"\n"
847 printf "#if GDB_MULTI_ARCH\n"
848 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
849 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
853 if class_is_function_p
855 if class_is_multiarch_p
; then :
856 elif fallback_default_p || class_is_predicate_p
859 printf "/* Default (function) for non- multi-arch platforms. */\n"
860 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
861 if [ "x${fallbackdefault}" = "x0" ]
863 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
865 # FIXME: Should be passing current_gdbarch through!
866 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
867 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
872 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
874 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
875 elif class_is_multiarch_p
877 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
879 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
881 if [ "x${formal}" = "xvoid" ]
883 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
885 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
887 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
888 if class_is_multiarch_p
; then :
890 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
891 printf "#error \"Non multi-arch definition of ${macro}\"\n"
893 printf "#if GDB_MULTI_ARCH\n"
894 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
895 if [ "x${actual}" = "x" ]
897 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
898 elif [ "x${actual}" = "x-" ]
900 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
902 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
913 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
916 /* Mechanism for co-ordinating the selection of a specific
919 GDB targets (*-tdep.c) can register an interest in a specific
920 architecture. Other GDB components can register a need to maintain
921 per-architecture data.
923 The mechanisms below ensures that there is only a loose connection
924 between the set-architecture command and the various GDB
925 components. Each component can independently register their need
926 to maintain architecture specific data with gdbarch.
930 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
933 The more traditional mega-struct containing architecture specific
934 data for all the various GDB components was also considered. Since
935 GDB is built from a variable number of (fairly independent)
936 components it was determined that the global aproach was not
940 /* Register a new architectural family with GDB.
942 Register support for the specified ARCHITECTURE with GDB. When
943 gdbarch determines that the specified architecture has been
944 selected, the corresponding INIT function is called.
948 The INIT function takes two parameters: INFO which contains the
949 information available to gdbarch about the (possibly new)
950 architecture; ARCHES which is a list of the previously created
951 \`\`struct gdbarch'' for this architecture.
953 The INIT function parameter INFO shall, as far as possible, be
954 pre-initialized with information obtained from INFO.ABFD or
955 previously selected architecture (if similar).
957 The INIT function shall return any of: NULL - indicating that it
958 doesn't recognize the selected architecture; an existing \`\`struct
959 gdbarch'' from the ARCHES list - indicating that the new
960 architecture is just a synonym for an earlier architecture (see
961 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
962 - that describes the selected architecture (see gdbarch_alloc()).
964 The DUMP_TDEP function shall print out all target specific values.
965 Care should be taken to ensure that the function works in both the
966 multi-arch and non- multi-arch cases. */
970 struct gdbarch *gdbarch;
971 struct gdbarch_list *next;
976 /* Use default: NULL (ZERO). */
977 const struct bfd_arch_info *bfd_arch_info;
979 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
982 /* Use default: NULL (ZERO). */
985 /* Use default: NULL (ZERO). */
986 struct gdbarch_tdep_info *tdep_info;
989 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
990 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
992 /* DEPRECATED - use gdbarch_register() */
993 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
995 extern void gdbarch_register (enum bfd_architecture architecture,
996 gdbarch_init_ftype *,
997 gdbarch_dump_tdep_ftype *);
1000 /* Return a freshly allocated, NULL terminated, array of the valid
1001 architecture names. Since architectures are registered during the
1002 _initialize phase this function only returns useful information
1003 once initialization has been completed. */
1005 extern const char **gdbarch_printable_names (void);
1008 /* Helper function. Search the list of ARCHES for a GDBARCH that
1009 matches the information provided by INFO. */
1011 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1014 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1015 basic initialization using values obtained from the INFO andTDEP
1016 parameters. set_gdbarch_*() functions are called to complete the
1017 initialization of the object. */
1019 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1022 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1023 It is assumed that the caller freeds the \`\`struct
1026 extern void gdbarch_free (struct gdbarch *);
1029 /* Helper function. Force an update of the current architecture.
1031 The actual architecture selected is determined by INFO, \`\`(gdb) set
1032 architecture'' et.al., the existing architecture and BFD's default
1033 architecture. INFO should be initialized to zero and then selected
1034 fields should be updated.
1036 Returns non-zero if the update succeeds */
1038 extern int gdbarch_update_p (struct gdbarch_info info);
1042 /* Register per-architecture data-pointer.
1044 Reserve space for a per-architecture data-pointer. An identifier
1045 for the reserved data-pointer is returned. That identifer should
1046 be saved in a local static variable.
1048 The per-architecture data-pointer can be initialized in one of two
1049 ways: The value can be set explicitly using a call to
1050 set_gdbarch_data(); the value can be set implicitly using the value
1051 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
1052 called after the basic architecture vector has been created.
1054 When a previously created architecture is re-selected, the
1055 per-architecture data-pointer for that previous architecture is
1056 restored. INIT() is not called.
1058 During initialization, multiple assignments of the data-pointer are
1059 allowed, non-NULL values are deleted by calling FREE(). If the
1060 architecture is deleted using gdbarch_free() all non-NULL data
1061 pointers are also deleted using FREE().
1063 Multiple registrarants for any architecture are allowed (and
1064 strongly encouraged). */
1066 struct gdbarch_data;
1068 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1069 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1071 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1072 gdbarch_data_free_ftype *free);
1073 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1074 struct gdbarch_data *data,
1077 extern void *gdbarch_data (struct gdbarch_data*);
1080 /* Register per-architecture memory region.
1082 Provide a memory-region swap mechanism. Per-architecture memory
1083 region are created. These memory regions are swapped whenever the
1084 architecture is changed. For a new architecture, the memory region
1085 is initialized with zero (0) and the INIT function is called.
1087 Memory regions are swapped / initialized in the order that they are
1088 registered. NULL DATA and/or INIT values can be specified.
1090 New code should use register_gdbarch_data(). */
1092 typedef void (gdbarch_swap_ftype) (void);
1093 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1094 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1098 /* The target-system-dependent byte order is dynamic */
1100 extern int target_byte_order;
1101 #ifndef TARGET_BYTE_ORDER
1102 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1105 extern int target_byte_order_auto;
1106 #ifndef TARGET_BYTE_ORDER_AUTO
1107 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1112 /* The target-system-dependent BFD architecture is dynamic */
1114 extern int target_architecture_auto;
1115 #ifndef TARGET_ARCHITECTURE_AUTO
1116 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1119 extern const struct bfd_arch_info *target_architecture;
1120 #ifndef TARGET_ARCHITECTURE
1121 #define TARGET_ARCHITECTURE (target_architecture + 0)
1125 /* The target-system-dependent disassembler is semi-dynamic */
1127 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1128 unsigned int len, disassemble_info *info);
1130 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1131 disassemble_info *info);
1133 extern void dis_asm_print_address (bfd_vma addr,
1134 disassemble_info *info);
1136 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1137 extern disassemble_info tm_print_insn_info;
1138 #ifndef TARGET_PRINT_INSN_INFO
1139 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1144 /* Set the dynamic target-system-dependent parameters (architecture,
1145 byte-order, ...) using information found in the BFD */
1147 extern void set_gdbarch_from_file (bfd *);
1150 /* Initialize the current architecture to the "first" one we find on
1153 extern void initialize_current_architecture (void);
1155 /* For non-multiarched targets, do any initialization of the default
1156 gdbarch object necessary after the _initialize_MODULE functions
1158 extern void initialize_non_multiarch ();
1160 /* gdbarch trace variable */
1161 extern int gdbarch_debug;
1163 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1168 #../move-if-change new-gdbarch.h gdbarch.h
1169 compare_new gdbarch.h
1176 exec > new-gdbarch.c
1181 #include "arch-utils.h"
1185 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1187 /* Just include everything in sight so that the every old definition
1188 of macro is visible. */
1189 #include "gdb_string.h"
1193 #include "inferior.h"
1194 #include "breakpoint.h"
1195 #include "gdb_wait.h"
1196 #include "gdbcore.h"
1199 #include "gdbthread.h"
1200 #include "annotate.h"
1201 #include "symfile.h" /* for overlay functions */
1202 #include "value.h" /* For old tm.h/nm.h macros. */
1206 #include "floatformat.h"
1208 #include "gdb_assert.h"
1209 #include "gdb-events.h"
1211 /* Static function declarations */
1213 static void verify_gdbarch (struct gdbarch *gdbarch);
1214 static void alloc_gdbarch_data (struct gdbarch *);
1215 static void init_gdbarch_data (struct gdbarch *);
1216 static void free_gdbarch_data (struct gdbarch *);
1217 static void init_gdbarch_swap (struct gdbarch *);
1218 static void swapout_gdbarch_swap (struct gdbarch *);
1219 static void swapin_gdbarch_swap (struct gdbarch *);
1221 /* Non-zero if we want to trace architecture code. */
1223 #ifndef GDBARCH_DEBUG
1224 #define GDBARCH_DEBUG 0
1226 int gdbarch_debug = GDBARCH_DEBUG;
1230 # gdbarch open the gdbarch object
1232 printf "/* Maintain the struct gdbarch object */\n"
1234 printf "struct gdbarch\n"
1236 printf " /* basic architectural information */\n"
1237 function_list |
while do_read
1241 printf " ${returntype} ${function};\n"
1245 printf " /* target specific vector. */\n"
1246 printf " struct gdbarch_tdep *tdep;\n"
1247 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1249 printf " /* per-architecture data-pointers */\n"
1250 printf " unsigned nr_data;\n"
1251 printf " void **data;\n"
1253 printf " /* per-architecture swap-regions */\n"
1254 printf " struct gdbarch_swap *swap;\n"
1257 /* Multi-arch values.
1259 When extending this structure you must:
1261 Add the field below.
1263 Declare set/get functions and define the corresponding
1266 gdbarch_alloc(): If zero/NULL is not a suitable default,
1267 initialize the new field.
1269 verify_gdbarch(): Confirm that the target updated the field
1272 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1275 \`\`startup_gdbarch()'': Append an initial value to the static
1276 variable (base values on the host's c-type system).
1278 get_gdbarch(): Implement the set/get functions (probably using
1279 the macro's as shortcuts).
1284 function_list |
while do_read
1286 if class_is_variable_p
1288 printf " ${returntype} ${function};\n"
1289 elif class_is_function_p
1291 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1296 # A pre-initialized vector
1300 /* The default architecture uses host values (for want of a better
1304 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1306 printf "struct gdbarch startup_gdbarch =\n"
1308 printf " /* basic architecture information */\n"
1309 function_list |
while do_read
1313 printf " ${staticdefault},\n"
1317 /* target specific vector and its dump routine */
1319 /*per-architecture data-pointers and swap regions */
1321 /* Multi-arch values */
1323 function_list |
while do_read
1325 if class_is_function_p || class_is_variable_p
1327 printf " ${staticdefault},\n"
1331 /* startup_gdbarch() */
1334 struct gdbarch *current_gdbarch = &startup_gdbarch;
1336 /* Do any initialization needed for a non-multiarch configuration
1337 after the _initialize_MODULE functions have been run. */
1339 initialize_non_multiarch ()
1341 alloc_gdbarch_data (&startup_gdbarch);
1342 init_gdbarch_swap (&startup_gdbarch);
1343 init_gdbarch_data (&startup_gdbarch);
1347 # Create a new gdbarch struct
1351 /* Create a new \`\`struct gdbarch'' based on information provided by
1352 \`\`struct gdbarch_info''. */
1357 gdbarch_alloc (const struct gdbarch_info *info,
1358 struct gdbarch_tdep *tdep)
1360 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1361 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1362 the current local architecture and not the previous global
1363 architecture. This ensures that the new architectures initial
1364 values are not influenced by the previous architecture. Once
1365 everything is parameterised with gdbarch, this will go away. */
1366 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1367 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1369 alloc_gdbarch_data (current_gdbarch);
1371 current_gdbarch->tdep = tdep;
1374 function_list |
while do_read
1378 printf " current_gdbarch->${function} = info->${function};\n"
1382 printf " /* Force the explicit initialization of these. */\n"
1383 function_list |
while do_read
1385 if class_is_function_p || class_is_variable_p
1387 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1389 printf " current_gdbarch->${function} = ${predefault};\n"
1394 /* gdbarch_alloc() */
1396 return current_gdbarch;
1400 # Free a gdbarch struct.
1404 /* Free a gdbarch struct. This should never happen in normal
1405 operation --- once you've created a gdbarch, you keep it around.
1406 However, if an architecture's init function encounters an error
1407 building the structure, it may need to clean up a partially
1408 constructed gdbarch. */
1411 gdbarch_free (struct gdbarch *arch)
1413 gdb_assert (arch != NULL);
1414 free_gdbarch_data (arch);
1419 # verify a new architecture
1422 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1426 verify_gdbarch (struct gdbarch *gdbarch)
1428 struct ui_file *log;
1429 struct cleanup *cleanups;
1432 /* Only perform sanity checks on a multi-arch target. */
1433 if (!GDB_MULTI_ARCH)
1435 log = mem_fileopen ();
1436 cleanups = make_cleanup_ui_file_delete (log);
1438 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1439 fprintf_unfiltered (log, "\n\tbyte-order");
1440 if (gdbarch->bfd_arch_info == NULL)
1441 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1442 /* Check those that need to be defined for the given multi-arch level. */
1444 function_list |
while do_read
1446 if class_is_function_p || class_is_variable_p
1448 if [ "x${invalid_p}" = "x0" ]
1450 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1451 elif class_is_predicate_p
1453 printf " /* Skip verify of ${function}, has predicate */\n"
1454 # FIXME: See do_read for potential simplification
1455 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1457 printf " if (${invalid_p})\n"
1458 printf " gdbarch->${function} = ${postdefault};\n"
1459 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1461 printf " if (gdbarch->${function} == ${predefault})\n"
1462 printf " gdbarch->${function} = ${postdefault};\n"
1463 elif [ -n "${postdefault}" ]
1465 printf " if (gdbarch->${function} == 0)\n"
1466 printf " gdbarch->${function} = ${postdefault};\n"
1467 elif [ -n "${invalid_p}" ]
1469 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1470 printf " && (${invalid_p}))\n"
1471 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1472 elif [ -n "${predefault}" ]
1474 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1475 printf " && (gdbarch->${function} == ${predefault}))\n"
1476 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1481 buf = ui_file_xstrdup (log, &dummy);
1482 make_cleanup (xfree, buf);
1483 if (strlen (buf) > 0)
1484 internal_error (__FILE__, __LINE__,
1485 "verify_gdbarch: the following are invalid ...%s",
1487 do_cleanups (cleanups);
1491 # dump the structure
1495 /* Print out the details of the current architecture. */
1497 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1498 just happens to match the global variable \`\`current_gdbarch''. That
1499 way macros refering to that variable get the local and not the global
1500 version - ulgh. Once everything is parameterised with gdbarch, this
1504 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1506 fprintf_unfiltered (file,
1507 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1510 function_list |
sort -t: +2 |
while do_read
1512 # multiarch functions don't have macros.
1513 if class_is_multiarch_p
1515 printf " if (GDB_MULTI_ARCH)\n"
1516 printf " fprintf_unfiltered (file,\n"
1517 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1518 printf " (long) current_gdbarch->${function});\n"
1521 # Print the macro definition.
1522 printf "#ifdef ${macro}\n"
1523 if [ "x${returntype}" = "xvoid" ]
1525 printf "#if GDB_MULTI_ARCH\n"
1526 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1528 if class_is_function_p
1530 printf " fprintf_unfiltered (file,\n"
1531 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1532 printf " \"${macro}(${actual})\",\n"
1533 printf " XSTRING (${macro} (${actual})));\n"
1535 printf " fprintf_unfiltered (file,\n"
1536 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1537 printf " XSTRING (${macro}));\n"
1539 # Print the architecture vector value
1540 if [ "x${returntype}" = "xvoid" ]
1544 if [ "x${print_p}" = "x()" ]
1546 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1547 elif [ "x${print_p}" = "x0" ]
1549 printf " /* skip print of ${macro}, print_p == 0. */\n"
1550 elif [ -n "${print_p}" ]
1552 printf " if (${print_p})\n"
1553 printf " fprintf_unfiltered (file,\n"
1554 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1555 printf " ${print});\n"
1556 elif class_is_function_p
1558 printf " if (GDB_MULTI_ARCH)\n"
1559 printf " fprintf_unfiltered (file,\n"
1560 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1561 printf " (long) current_gdbarch->${function}\n"
1562 printf " /*${macro} ()*/);\n"
1564 printf " fprintf_unfiltered (file,\n"
1565 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1566 printf " ${print});\n"
1571 if (current_gdbarch->dump_tdep != NULL)
1572 current_gdbarch->dump_tdep (current_gdbarch, file);
1580 struct gdbarch_tdep *
1581 gdbarch_tdep (struct gdbarch *gdbarch)
1583 if (gdbarch_debug >= 2)
1584 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1585 return gdbarch->tdep;
1589 function_list |
while do_read
1591 if class_is_predicate_p
1595 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1597 if [ -n "${valid_p}" ]
1599 printf " return ${valid_p};\n"
1601 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1605 if class_is_function_p
1608 printf "${returntype}\n"
1609 if [ "x${formal}" = "xvoid" ]
1611 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1613 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1616 printf " if (gdbarch->${function} == 0)\n"
1617 printf " internal_error (__FILE__, __LINE__,\n"
1618 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1619 printf " if (gdbarch_debug >= 2)\n"
1620 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1621 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1623 if class_is_multiarch_p
1630 if class_is_multiarch_p
1632 params
="gdbarch, ${actual}"
1637 if [ "x${returntype}" = "xvoid" ]
1639 printf " gdbarch->${function} (${params});\n"
1641 printf " return gdbarch->${function} (${params});\n"
1646 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1647 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1649 printf " gdbarch->${function} = ${function};\n"
1651 elif class_is_variable_p
1654 printf "${returntype}\n"
1655 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1657 if [ "x${invalid_p}" = "x0" ]
1659 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1660 elif [ -n "${invalid_p}" ]
1662 printf " if (${invalid_p})\n"
1663 printf " internal_error (__FILE__, __LINE__,\n"
1664 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1665 elif [ -n "${predefault}" ]
1667 printf " if (gdbarch->${function} == ${predefault})\n"
1668 printf " internal_error (__FILE__, __LINE__,\n"
1669 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1671 printf " if (gdbarch_debug >= 2)\n"
1672 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1673 printf " return gdbarch->${function};\n"
1677 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1678 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1680 printf " gdbarch->${function} = ${function};\n"
1682 elif class_is_info_p
1685 printf "${returntype}\n"
1686 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1688 printf " if (gdbarch_debug >= 2)\n"
1689 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1690 printf " return gdbarch->${function};\n"
1695 # All the trailing guff
1699 /* Keep a registry of per-architecture data-pointers required by GDB
1705 gdbarch_data_init_ftype *init;
1706 gdbarch_data_free_ftype *free;
1709 struct gdbarch_data_registration
1711 struct gdbarch_data *data;
1712 struct gdbarch_data_registration *next;
1715 struct gdbarch_data_registry
1718 struct gdbarch_data_registration *registrations;
1721 struct gdbarch_data_registry gdbarch_data_registry =
1726 struct gdbarch_data *
1727 register_gdbarch_data (gdbarch_data_init_ftype *init,
1728 gdbarch_data_free_ftype *free)
1730 struct gdbarch_data_registration **curr;
1731 for (curr = &gdbarch_data_registry.registrations;
1733 curr = &(*curr)->next);
1734 (*curr) = XMALLOC (struct gdbarch_data_registration);
1735 (*curr)->next = NULL;
1736 (*curr)->data = XMALLOC (struct gdbarch_data);
1737 (*curr)->data->index = gdbarch_data_registry.nr++;
1738 (*curr)->data->init = init;
1739 (*curr)->data->free = free;
1740 return (*curr)->data;
1744 /* Walk through all the registered users initializing each in turn. */
1747 init_gdbarch_data (struct gdbarch *gdbarch)
1749 struct gdbarch_data_registration *rego;
1750 for (rego = gdbarch_data_registry.registrations;
1754 struct gdbarch_data *data = rego->data;
1755 gdb_assert (data->index < gdbarch->nr_data);
1756 if (data->init != NULL)
1758 void *pointer = data->init (gdbarch);
1759 set_gdbarch_data (gdbarch, data, pointer);
1764 /* Create/delete the gdbarch data vector. */
1767 alloc_gdbarch_data (struct gdbarch *gdbarch)
1769 gdb_assert (gdbarch->data == NULL);
1770 gdbarch->nr_data = gdbarch_data_registry.nr;
1771 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1775 free_gdbarch_data (struct gdbarch *gdbarch)
1777 struct gdbarch_data_registration *rego;
1778 gdb_assert (gdbarch->data != NULL);
1779 for (rego = gdbarch_data_registry.registrations;
1783 struct gdbarch_data *data = rego->data;
1784 gdb_assert (data->index < gdbarch->nr_data);
1785 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1787 data->free (gdbarch, gdbarch->data[data->index]);
1788 gdbarch->data[data->index] = NULL;
1791 xfree (gdbarch->data);
1792 gdbarch->data = NULL;
1796 /* Initialize the current value of thee specified per-architecture
1800 set_gdbarch_data (struct gdbarch *gdbarch,
1801 struct gdbarch_data *data,
1804 gdb_assert (data->index < gdbarch->nr_data);
1805 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1806 data->free (gdbarch, gdbarch->data[data->index]);
1807 gdbarch->data[data->index] = pointer;
1810 /* Return the current value of the specified per-architecture
1814 gdbarch_data (struct gdbarch_data *data)
1816 gdb_assert (data->index < current_gdbarch->nr_data);
1817 return current_gdbarch->data[data->index];
1822 /* Keep a registry of swapped data required by GDB modules. */
1827 struct gdbarch_swap_registration *source;
1828 struct gdbarch_swap *next;
1831 struct gdbarch_swap_registration
1834 unsigned long sizeof_data;
1835 gdbarch_swap_ftype *init;
1836 struct gdbarch_swap_registration *next;
1839 struct gdbarch_swap_registry
1842 struct gdbarch_swap_registration *registrations;
1845 struct gdbarch_swap_registry gdbarch_swap_registry =
1851 register_gdbarch_swap (void *data,
1852 unsigned long sizeof_data,
1853 gdbarch_swap_ftype *init)
1855 struct gdbarch_swap_registration **rego;
1856 for (rego = &gdbarch_swap_registry.registrations;
1858 rego = &(*rego)->next);
1859 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1860 (*rego)->next = NULL;
1861 (*rego)->init = init;
1862 (*rego)->data = data;
1863 (*rego)->sizeof_data = sizeof_data;
1868 init_gdbarch_swap (struct gdbarch *gdbarch)
1870 struct gdbarch_swap_registration *rego;
1871 struct gdbarch_swap **curr = &gdbarch->swap;
1872 for (rego = gdbarch_swap_registry.registrations;
1876 if (rego->data != NULL)
1878 (*curr) = XMALLOC (struct gdbarch_swap);
1879 (*curr)->source = rego;
1880 (*curr)->swap = xmalloc (rego->sizeof_data);
1881 (*curr)->next = NULL;
1882 memset (rego->data, 0, rego->sizeof_data);
1883 curr = &(*curr)->next;
1885 if (rego->init != NULL)
1891 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1893 struct gdbarch_swap *curr;
1894 for (curr = gdbarch->swap;
1897 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1901 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1903 struct gdbarch_swap *curr;
1904 for (curr = gdbarch->swap;
1907 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1911 /* Keep a registry of the architectures known by GDB. */
1913 struct gdbarch_registration
1915 enum bfd_architecture bfd_architecture;
1916 gdbarch_init_ftype *init;
1917 gdbarch_dump_tdep_ftype *dump_tdep;
1918 struct gdbarch_list *arches;
1919 struct gdbarch_registration *next;
1922 static struct gdbarch_registration *gdbarch_registry = NULL;
1925 append_name (const char ***buf, int *nr, const char *name)
1927 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1933 gdbarch_printable_names (void)
1937 /* Accumulate a list of names based on the registed list of
1939 enum bfd_architecture a;
1941 const char **arches = NULL;
1942 struct gdbarch_registration *rego;
1943 for (rego = gdbarch_registry;
1947 const struct bfd_arch_info *ap;
1948 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1950 internal_error (__FILE__, __LINE__,
1951 "gdbarch_architecture_names: multi-arch unknown");
1954 append_name (&arches, &nr_arches, ap->printable_name);
1959 append_name (&arches, &nr_arches, NULL);
1963 /* Just return all the architectures that BFD knows. Assume that
1964 the legacy architecture framework supports them. */
1965 return bfd_arch_list ();
1970 gdbarch_register (enum bfd_architecture bfd_architecture,
1971 gdbarch_init_ftype *init,
1972 gdbarch_dump_tdep_ftype *dump_tdep)
1974 struct gdbarch_registration **curr;
1975 const struct bfd_arch_info *bfd_arch_info;
1976 /* Check that BFD recognizes this architecture */
1977 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1978 if (bfd_arch_info == NULL)
1980 internal_error (__FILE__, __LINE__,
1981 "gdbarch: Attempt to register unknown architecture (%d)",
1984 /* Check that we haven't seen this architecture before */
1985 for (curr = &gdbarch_registry;
1987 curr = &(*curr)->next)
1989 if (bfd_architecture == (*curr)->bfd_architecture)
1990 internal_error (__FILE__, __LINE__,
1991 "gdbarch: Duplicate registraration of architecture (%s)",
1992 bfd_arch_info->printable_name);
1996 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1997 bfd_arch_info->printable_name,
2000 (*curr) = XMALLOC (struct gdbarch_registration);
2001 (*curr)->bfd_architecture = bfd_architecture;
2002 (*curr)->init = init;
2003 (*curr)->dump_tdep = dump_tdep;
2004 (*curr)->arches = NULL;
2005 (*curr)->next = NULL;
2006 /* When non- multi-arch, install whatever target dump routine we've
2007 been provided - hopefully that routine has been written correctly
2008 and works regardless of multi-arch. */
2009 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2010 && startup_gdbarch.dump_tdep == NULL)
2011 startup_gdbarch.dump_tdep = dump_tdep;
2015 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2016 gdbarch_init_ftype *init)
2018 gdbarch_register (bfd_architecture, init, NULL);
2022 /* Look for an architecture using gdbarch_info. Base search on only
2023 BFD_ARCH_INFO and BYTE_ORDER. */
2025 struct gdbarch_list *
2026 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2027 const struct gdbarch_info *info)
2029 for (; arches != NULL; arches = arches->next)
2031 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2033 if (info->byte_order != arches->gdbarch->byte_order)
2041 /* Update the current architecture. Return ZERO if the update request
2045 gdbarch_update_p (struct gdbarch_info info)
2047 struct gdbarch *new_gdbarch;
2048 struct gdbarch_list **list;
2049 struct gdbarch_registration *rego;
2051 /* Fill in missing parts of the INFO struct using a number of
2052 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2054 /* \`\`(gdb) set architecture ...'' */
2055 if (info.bfd_arch_info == NULL
2056 && !TARGET_ARCHITECTURE_AUTO)
2057 info.bfd_arch_info = TARGET_ARCHITECTURE;
2058 if (info.bfd_arch_info == NULL
2059 && info.abfd != NULL
2060 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2061 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2062 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2063 if (info.bfd_arch_info == NULL)
2064 info.bfd_arch_info = TARGET_ARCHITECTURE;
2066 /* \`\`(gdb) set byte-order ...'' */
2067 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2068 && !TARGET_BYTE_ORDER_AUTO)
2069 info.byte_order = TARGET_BYTE_ORDER;
2070 /* From the INFO struct. */
2071 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2072 && info.abfd != NULL)
2073 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2074 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2075 : BFD_ENDIAN_UNKNOWN);
2076 /* From the current target. */
2077 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2078 info.byte_order = TARGET_BYTE_ORDER;
2080 /* Must have found some sort of architecture. */
2081 gdb_assert (info.bfd_arch_info != NULL);
2085 fprintf_unfiltered (gdb_stdlog,
2086 "gdbarch_update: info.bfd_arch_info %s\n",
2087 (info.bfd_arch_info != NULL
2088 ? info.bfd_arch_info->printable_name
2090 fprintf_unfiltered (gdb_stdlog,
2091 "gdbarch_update: info.byte_order %d (%s)\n",
2093 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2094 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2096 fprintf_unfiltered (gdb_stdlog,
2097 "gdbarch_update: info.abfd 0x%lx\n",
2099 fprintf_unfiltered (gdb_stdlog,
2100 "gdbarch_update: info.tdep_info 0x%lx\n",
2101 (long) info.tdep_info);
2104 /* Find the target that knows about this architecture. */
2105 for (rego = gdbarch_registry;
2108 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2113 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2117 /* Ask the target for a replacement architecture. */
2118 new_gdbarch = rego->init (info, rego->arches);
2120 /* Did the target like it? No. Reject the change. */
2121 if (new_gdbarch == NULL)
2124 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2128 /* Did the architecture change? No. Do nothing. */
2129 if (current_gdbarch == new_gdbarch)
2132 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2134 new_gdbarch->bfd_arch_info->printable_name);
2138 /* Swap all data belonging to the old target out */
2139 swapout_gdbarch_swap (current_gdbarch);
2141 /* Is this a pre-existing architecture? Yes. Swap it in. */
2142 for (list = ®o->arches;
2144 list = &(*list)->next)
2146 if ((*list)->gdbarch == new_gdbarch)
2149 fprintf_unfiltered (gdb_stdlog,
2150 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2152 new_gdbarch->bfd_arch_info->printable_name);
2153 current_gdbarch = new_gdbarch;
2154 swapin_gdbarch_swap (new_gdbarch);
2155 architecture_changed_event ();
2160 /* Append this new architecture to this targets list. */
2161 (*list) = XMALLOC (struct gdbarch_list);
2162 (*list)->next = NULL;
2163 (*list)->gdbarch = new_gdbarch;
2165 /* Switch to this new architecture. Dump it out. */
2166 current_gdbarch = new_gdbarch;
2169 fprintf_unfiltered (gdb_stdlog,
2170 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2172 new_gdbarch->bfd_arch_info->printable_name);
2175 /* Check that the newly installed architecture is valid. Plug in
2176 any post init values. */
2177 new_gdbarch->dump_tdep = rego->dump_tdep;
2178 verify_gdbarch (new_gdbarch);
2180 /* Initialize the per-architecture memory (swap) areas.
2181 CURRENT_GDBARCH must be update before these modules are
2183 init_gdbarch_swap (new_gdbarch);
2185 /* Initialize the per-architecture data-pointer of all parties that
2186 registered an interest in this architecture. CURRENT_GDBARCH
2187 must be updated before these modules are called. */
2188 init_gdbarch_data (new_gdbarch);
2189 architecture_changed_event ();
2192 gdbarch_dump (current_gdbarch, gdb_stdlog);
2200 /* Pointer to the target-dependent disassembly function. */
2201 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2202 disassemble_info tm_print_insn_info;
2205 extern void _initialize_gdbarch (void);
2208 _initialize_gdbarch (void)
2210 struct cmd_list_element *c;
2212 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2213 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2214 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2215 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2216 tm_print_insn_info.print_address_func = dis_asm_print_address;
2218 add_show_from_set (add_set_cmd ("arch",
2221 (char *)&gdbarch_debug,
2222 "Set architecture debugging.\\n\\
2223 When non-zero, architecture debugging is enabled.", &setdebuglist),
2225 c = add_set_cmd ("archdebug",
2228 (char *)&gdbarch_debug,
2229 "Set architecture debugging.\\n\\
2230 When non-zero, architecture debugging is enabled.", &setlist);
2232 deprecate_cmd (c, "set debug arch");
2233 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2239 #../move-if-change new-gdbarch.c gdbarch.c
2240 compare_new gdbarch.c