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.
22 # Make certain that the script is running in an internationalized
25 LC_ALL
=c
; export LC_ALL
33 echo "${file} missing? cp new-${file} ${file}" 1>&2
34 elif diff -u ${file} new-
${file}
36 echo "${file} unchanged" 1>&2
38 echo "${file} has changed? cp new-${file} ${file}" 1>&2
43 # Format of the input table
44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
52 if test "${line}" = ""
55 elif test "${line}" = "#" -a "${comment}" = ""
58 elif expr "${line}" : "#" > /dev
/null
64 # The semantics of IFS varies between different SH's. Some
65 # treat ``::' as three fields while some treat it as just too.
66 # Work around this by eliminating ``::'' ....
67 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
69 OFS
="${IFS}" ; IFS
="[:]"
70 eval read ${read} <<EOF
75 # .... and then going back through each field and strip out those
76 # that ended up with just that space character.
79 if eval test \"\
${${r}}\" = \"\
\"
86 1 ) gt_level
=">= GDB_MULTI_ARCH_PARTIAL" ;;
87 2 ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
89 * ) error
"Error: bad level for ${function}" 1>&2 ; kill $$
; exit 1 ;;
93 m
) staticdefault
="${predefault}" ;;
94 M
) staticdefault
="0" ;;
95 * ) test "${staticdefault}" || staticdefault
=0 ;;
97 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
98 # multi-arch defaults.
99 # test "${predefault}" || predefault=0
101 # come up with a format, use a few guesses for variables
102 case ":${class}:${fmt}:${print}:" in
104 if [ "${returntype}" = int
]
108 elif [ "${returntype}" = long
]
115 test "${fmt}" ||
fmt="%ld"
116 test "${print}" || print
="(long) ${macro}"
118 case "${invalid_p}" in
121 if [ -n "${predefault}" ]
123 #invalid_p="gdbarch->${function} == ${predefault}"
124 valid_p
="gdbarch->${function} != ${predefault}"
126 #invalid_p="gdbarch->${function} == 0"
127 valid_p
="gdbarch->${function} != 0"
130 * ) valid_p
="!(${invalid_p})"
133 # PREDEFAULT is a valid fallback definition of MEMBER when
134 # multi-arch is not enabled. This ensures that the
135 # default value, when multi-arch is the same as the
136 # default value when not multi-arch. POSTDEFAULT is
137 # always a valid definition of MEMBER as this again
138 # ensures consistency.
140 if [ -n "${postdefault}" ]
142 fallbackdefault
="${postdefault}"
143 elif [ -n "${predefault}" ]
145 fallbackdefault
="${predefault}"
150 #NOT YET: See gdbarch.log for basic verification of
165 fallback_default_p
()
167 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
168 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
171 class_is_variable_p
()
179 class_is_function_p
()
182 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
187 class_is_multiarch_p
()
195 class_is_predicate_p
()
198 *F
* |
*V
* |
*M
* ) true
;;
212 # dump out/verify the doco
222 # F -> function + predicate
223 # hiding a function + predicate to test function validity
226 # V -> variable + predicate
227 # hiding a variable + predicate to test variables validity
229 # hiding something from the ``struct info'' object
230 # m -> multi-arch function
231 # hiding a multi-arch function (parameterised with the architecture)
232 # M -> multi-arch function + predicate
233 # hiding a multi-arch function + predicate to test function validity
237 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
238 # LEVEL is a predicate on checking that a given method is
239 # initialized (using INVALID_P).
243 # The name of the MACRO that this method is to be accessed by.
247 # For functions, the return type; for variables, the data type
251 # For functions, the member function name; for variables, the
252 # variable name. Member function names are always prefixed with
253 # ``gdbarch_'' for name-space purity.
257 # The formal argument list. It is assumed that the formal
258 # argument list includes the actual name of each list element.
259 # A function with no arguments shall have ``void'' as the
260 # formal argument list.
264 # The list of actual arguments. The arguments specified shall
265 # match the FORMAL list given above. Functions with out
266 # arguments leave this blank.
270 # Any GCC attributes that should be attached to the function
271 # declaration. At present this field is unused.
275 # To help with the GDB startup a static gdbarch object is
276 # created. STATICDEFAULT is the value to insert into that
277 # static gdbarch object. Since this a static object only
278 # simple expressions can be used.
280 # If STATICDEFAULT is empty, zero is used.
284 # An initial value to assign to MEMBER of the freshly
285 # malloc()ed gdbarch object. After initialization, the
286 # freshly malloc()ed object is passed to the target
287 # architecture code for further updates.
289 # If PREDEFAULT is empty, zero is used.
291 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
292 # INVALID_P are specified, PREDEFAULT will be used as the
293 # default for the non- multi-arch target.
295 # A zero PREDEFAULT function will force the fallback to call
298 # Variable declarations can refer to ``gdbarch'' which will
299 # contain the current architecture. Care should be taken.
303 # A value to assign to MEMBER of the new gdbarch object should
304 # the target architecture code fail to change the PREDEFAULT
307 # If POSTDEFAULT is empty, no post update is performed.
309 # If both INVALID_P and POSTDEFAULT are non-empty then
310 # INVALID_P will be used to determine if MEMBER should be
311 # changed to POSTDEFAULT.
313 # If a non-empty POSTDEFAULT and a zero INVALID_P are
314 # specified, POSTDEFAULT will be used as the default for the
315 # non- multi-arch target (regardless of the value of
318 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
320 # Variable declarations can refer to ``gdbarch'' which will
321 # contain the current architecture. Care should be taken.
325 # A predicate equation that validates MEMBER. Non-zero is
326 # returned if the code creating the new architecture failed to
327 # initialize MEMBER or the initialized the member is invalid.
328 # If POSTDEFAULT is non-empty then MEMBER will be updated to
329 # that value. If POSTDEFAULT is empty then internal_error()
332 # If INVALID_P is empty, a check that MEMBER is no longer
333 # equal to PREDEFAULT is used.
335 # The expression ``0'' disables the INVALID_P check making
336 # PREDEFAULT a legitimate value.
338 # See also PREDEFAULT and POSTDEFAULT.
342 # printf style format string that can be used to print out the
343 # MEMBER. Sometimes "%s" is useful. For functions, this is
344 # ignored and the function address is printed.
346 # If FMT is empty, ``%ld'' is used.
350 # An optional equation that casts MEMBER to a value suitable
351 # for formatting by FMT.
353 # If PRINT is empty, ``(long)'' is used.
357 # An optional indicator for any predicte to wrap around the
360 # () -> Call a custom function to do the dump.
361 # exp -> Wrap print up in ``if (${print_p}) ...
362 # ``'' -> No predicate
364 # If PRINT_P is empty, ``1'' is always used.
371 echo "Bad field ${field}"
379 # See below (DOCO) for description of each field
381 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
383 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
384 # Number of bits in a char or unsigned char for the target machine.
385 # Just like CHAR_BIT in <limits.h> but describes the target machine.
386 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
388 # Number of bits in a short or unsigned short for the target machine.
389 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
390 # Number of bits in an int or unsigned int for the target machine.
391 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
392 # Number of bits in a long or unsigned long for the target machine.
393 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
394 # Number of bits in a long long or unsigned long long for the target
396 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
397 # Number of bits in a float for the target machine.
398 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
399 # Number of bits in a double for the target machine.
400 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
401 # Number of bits in a long double for the target machine.
402 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
403 # For most targets, a pointer on the target and its representation as an
404 # address in GDB have the same size and "look the same". For such a
405 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
406 # / addr_bit will be set from it.
408 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
409 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
411 # ptr_bit is the size of a pointer on the target
412 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
413 # addr_bit is the size of a target address as represented in gdb
414 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
415 # Number of bits in a BFD_VMA for the target object file format.
416 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
418 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
419 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
421 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
422 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
423 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
424 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
425 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
426 # Function for getting target's idea of a frame pointer. FIXME: GDB's
427 # whole scheme for dealing with "frames" and "frame pointers" needs a
429 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
431 M:::void:register_read:int regnum, char *buf:regnum, buf:
432 M:::void:register_write:int regnum, char *buf:regnum, buf:
434 v:2:NUM_REGS:int:num_regs::::0:-1
435 # This macro gives the number of pseudo-registers that live in the
436 # register namespace but do not get fetched or stored on the target.
437 # These pseudo-registers may be aliases for other registers,
438 # combinations of other registers, or they may be computed by GDB.
439 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
441 # GDB's standard (or well known) register numbers. These can map onto
442 # a real register or a pseudo (computed) register or not be defined at
444 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
445 v:2:FP_REGNUM:int:fp_regnum::::-1:-1::0
446 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
447 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
448 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
449 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
450 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
451 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
452 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
453 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
454 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
455 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
456 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
457 # Convert from an sdb register number to an internal gdb register number.
458 # This should be defined in tm.h, if REGISTER_NAMES is not set up
459 # to map one to one onto the sdb register numbers.
460 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
461 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
462 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
463 v:2:REGISTER_SIZE:int:register_size::::0:-1
464 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
465 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
466 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_raw_size:0
467 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
468 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_virtual_size:0
469 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
470 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
471 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
472 f:2:PRINT_FLOAT_INFO:void:print_float_info:void::::default_print_float_info::0
473 # MAP a GDB RAW register number onto a simulator register number. See
474 # also include/...-sim.h.
475 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
476 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
477 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
478 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
479 # setjmp/longjmp support.
480 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
482 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
483 # much better but at least they are vaguely consistent). The headers
484 # and body contain convoluted #if/#else sequences for determine how
485 # things should be compiled. Instead of trying to mimic that
486 # behaviour here (and hence entrench it further) gdbarch simply
487 # reqires that these methods be set up from the word go. This also
488 # avoids any potential problems with moving beyond multi-arch partial.
489 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
490 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
491 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
492 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
493 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
494 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
495 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
496 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
497 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
498 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
499 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
500 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
501 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
502 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
503 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
504 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
506 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
507 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
508 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
509 # GET_SAVED_REGISTER is like DUMMY_FRAMES. It is at level one as the
510 # old code has strange #ifdef interaction. So far no one has found
511 # that default_get_saved_register() is the default they are after.
512 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
514 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
515 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
516 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
517 # This function is called when the value of a pseudo-register needs to
518 # be updated. Typically it will be defined on a per-architecture
520 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
521 # This function is called when the value of a pseudo-register needs to
522 # be set or stored. Typically it will be defined on a
523 # per-architecture basis.
524 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
526 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
527 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
528 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
530 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
531 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
532 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
533 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
534 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
535 f:2:POP_FRAME:void:pop_frame:void:-:::0
537 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
538 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
539 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
540 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
542 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
543 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
545 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
546 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
547 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
548 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
549 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
550 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
551 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
552 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
553 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
555 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
557 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
558 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
559 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
560 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
561 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
562 # given frame is the outermost one and has no caller.
564 # XXXX - both default and alternate frame_chain_valid functions are
565 # deprecated. New code should use dummy frames and one of the generic
567 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::func_frame_chain_valid::0
568 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
569 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
570 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
571 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
572 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
574 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
575 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
576 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
577 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
578 v:2:PARM_BOUNDARY:int:parm_boundary
580 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
581 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
582 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
583 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
584 # On some machines there are bits in addresses which are not really
585 # part of the address, but are used by the kernel, the hardware, etc.
586 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
587 # we get a "real" address such as one would find in a symbol table.
588 # This is used only for addresses of instructions, and even then I'm
589 # not sure it's used in all contexts. It exists to deal with there
590 # being a few stray bits in the PC which would mislead us, not as some
591 # sort of generic thing to handle alignment or segmentation (it's
592 # possible it should be in TARGET_READ_PC instead).
593 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
594 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
596 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
597 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
598 # the target needs software single step. An ISA method to implement it.
600 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
601 # using the breakpoint system instead of blatting memory directly (as with rs6000).
603 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
604 # single step. If not, then implement single step using breakpoints.
605 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
606 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
607 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
608 # For SVR4 shared libraries, each call goes through a small piece of
609 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
610 # to nonzero if we are current stopped in one of these.
611 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
612 # Sigtramp is a routine that the kernel calls (which then calls the
613 # signal handler). On most machines it is a library routine that is
614 # linked into the executable.
616 # This macro, given a program counter value and the name of the
617 # function in which that PC resides (which can be null if the name is
618 # not known), returns nonzero if the PC and name show that we are in
621 # On most machines just see if the name is sigtramp (and if we have
622 # no name, assume we are not in sigtramp).
624 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
625 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
626 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
627 # own local NAME lookup.
629 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
630 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
632 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
633 # A target might have problems with watchpoints as soon as the stack
634 # frame of the current function has been destroyed. This mostly happens
635 # as the first action in a funtion's epilogue. in_function_epilogue_p()
636 # is defined to return a non-zero value if either the given addr is one
637 # instruction after the stack destroying instruction up to the trailing
638 # return instruction or if we can figure out that the stack frame has
639 # already been invalidated regardless of the value of addr. Targets
640 # which don't suffer from that problem could just let this functionality
642 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
643 # Given a vector of command-line arguments, return a newly allocated
644 # string which, when passed to the create_inferior function, will be
645 # parsed (on Unix systems, by the shell) to yield the same vector.
646 # This function should call error() if the argument vector is not
647 # representable for this target or if this target does not support
648 # command-line arguments.
649 # ARGC is the number of elements in the vector.
650 # ARGV is an array of strings, one per argument.
651 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
652 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
653 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
654 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
661 exec > new-gdbarch.log
662 function_list |
while do_read
665 ${class} ${macro}(${actual})
666 ${returntype} ${function} ($formal)${attrib}
670 eval echo \"\ \ \ \
${r}=\
${${r}}\"
672 # #fallbackdefault=${fallbackdefault}
673 # #valid_p=${valid_p}
675 if class_is_predicate_p
&& fallback_default_p
677 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
681 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
683 echo "Error: postdefault is useless when invalid_p=0" 1>&2
687 if class_is_multiarch_p
689 if class_is_predicate_p
; then :
690 elif test "x${predefault}" = "x"
692 echo "Error: pure multi-arch function must have a predefault" 1>&2
701 compare_new gdbarch.log
707 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
709 /* Dynamic architecture support for GDB, the GNU debugger.
710 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
712 This file is part of GDB.
714 This program is free software; you can redistribute it and/or modify
715 it under the terms of the GNU General Public License as published by
716 the Free Software Foundation; either version 2 of the License, or
717 (at your option) any later version.
719 This program is distributed in the hope that it will be useful,
720 but WITHOUT ANY WARRANTY; without even the implied warranty of
721 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
722 GNU General Public License for more details.
724 You should have received a copy of the GNU General Public License
725 along with this program; if not, write to the Free Software
726 Foundation, Inc., 59 Temple Place - Suite 330,
727 Boston, MA 02111-1307, USA. */
729 /* This file was created with the aid of \`\`gdbarch.sh''.
731 The Bourne shell script \`\`gdbarch.sh'' creates the files
732 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
733 against the existing \`\`gdbarch.[hc]''. Any differences found
736 If editing this file, please also run gdbarch.sh and merge any
737 changes into that script. Conversely, when making sweeping changes
738 to this file, modifying gdbarch.sh and using its output may prove
754 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
756 /* Pull in function declarations refered to, indirectly, via macros. */
757 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
758 #include "inferior.h" /* For unsigned_address_to_pointer(). */
764 struct minimal_symbol;
766 extern struct gdbarch *current_gdbarch;
769 /* If any of the following are defined, the target wasn't correctly
773 #if defined (EXTRA_FRAME_INFO)
774 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
779 #if defined (FRAME_FIND_SAVED_REGS)
780 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
784 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
785 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
792 printf "/* The following are pre-initialized by GDBARCH. */\n"
793 function_list |
while do_read
798 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
799 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
800 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
801 printf "#error \"Non multi-arch definition of ${macro}\"\n"
803 printf "#if GDB_MULTI_ARCH\n"
804 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
805 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
814 printf "/* The following are initialized by the target dependent code. */\n"
815 function_list |
while do_read
817 if [ -n "${comment}" ]
819 echo "${comment}" |
sed \
824 if class_is_multiarch_p
826 if class_is_predicate_p
829 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
832 if class_is_predicate_p
835 printf "#if defined (${macro})\n"
836 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
837 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
838 printf "#if !defined (${macro}_P)\n"
839 printf "#define ${macro}_P() (1)\n"
843 printf "/* Default predicate for non- multi-arch targets. */\n"
844 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
845 printf "#define ${macro}_P() (0)\n"
848 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
849 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
850 printf "#error \"Non multi-arch definition of ${macro}\"\n"
852 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
853 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
857 if class_is_variable_p
859 if fallback_default_p || class_is_predicate_p
862 printf "/* Default (value) for non- multi-arch platforms. */\n"
863 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
864 echo "#define ${macro} (${fallbackdefault})" \
865 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
869 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
870 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
871 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
872 printf "#error \"Non multi-arch definition of ${macro}\"\n"
874 printf "#if GDB_MULTI_ARCH\n"
875 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
876 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
880 if class_is_function_p
882 if class_is_multiarch_p
; then :
883 elif fallback_default_p || class_is_predicate_p
886 printf "/* Default (function) for non- multi-arch platforms. */\n"
887 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
888 if [ "x${fallbackdefault}" = "x0" ]
890 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
892 # FIXME: Should be passing current_gdbarch through!
893 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
894 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
899 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
901 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
902 elif class_is_multiarch_p
904 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
906 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
908 if [ "x${formal}" = "xvoid" ]
910 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
912 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
914 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
915 if class_is_multiarch_p
; then :
917 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
918 printf "#error \"Non multi-arch definition of ${macro}\"\n"
920 printf "#if GDB_MULTI_ARCH\n"
921 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
922 if [ "x${actual}" = "x" ]
924 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
925 elif [ "x${actual}" = "x-" ]
927 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
929 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
940 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
943 /* Mechanism for co-ordinating the selection of a specific
946 GDB targets (*-tdep.c) can register an interest in a specific
947 architecture. Other GDB components can register a need to maintain
948 per-architecture data.
950 The mechanisms below ensures that there is only a loose connection
951 between the set-architecture command and the various GDB
952 components. Each component can independently register their need
953 to maintain architecture specific data with gdbarch.
957 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
960 The more traditional mega-struct containing architecture specific
961 data for all the various GDB components was also considered. Since
962 GDB is built from a variable number of (fairly independent)
963 components it was determined that the global aproach was not
967 /* Register a new architectural family with GDB.
969 Register support for the specified ARCHITECTURE with GDB. When
970 gdbarch determines that the specified architecture has been
971 selected, the corresponding INIT function is called.
975 The INIT function takes two parameters: INFO which contains the
976 information available to gdbarch about the (possibly new)
977 architecture; ARCHES which is a list of the previously created
978 \`\`struct gdbarch'' for this architecture.
980 The INFO parameter is, as far as possible, be pre-initialized with
981 information obtained from INFO.ABFD or the previously selected
984 The ARCHES parameter is a linked list (sorted most recently used)
985 of all the previously created architures for this architecture
986 family. The (possibly NULL) ARCHES->gdbarch can used to access
987 values from the previously selected architecture for this
988 architecture family. The global \`\`current_gdbarch'' shall not be
991 The INIT function shall return any of: NULL - indicating that it
992 doesn't recognize the selected architecture; an existing \`\`struct
993 gdbarch'' from the ARCHES list - indicating that the new
994 architecture is just a synonym for an earlier architecture (see
995 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
996 - that describes the selected architecture (see gdbarch_alloc()).
998 The DUMP_TDEP function shall print out all target specific values.
999 Care should be taken to ensure that the function works in both the
1000 multi-arch and non- multi-arch cases. */
1004 struct gdbarch *gdbarch;
1005 struct gdbarch_list *next;
1010 /* Use default: NULL (ZERO). */
1011 const struct bfd_arch_info *bfd_arch_info;
1013 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1016 /* Use default: NULL (ZERO). */
1019 /* Use default: NULL (ZERO). */
1020 struct gdbarch_tdep_info *tdep_info;
1023 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1024 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1026 /* DEPRECATED - use gdbarch_register() */
1027 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1029 extern void gdbarch_register (enum bfd_architecture architecture,
1030 gdbarch_init_ftype *,
1031 gdbarch_dump_tdep_ftype *);
1034 /* Return a freshly allocated, NULL terminated, array of the valid
1035 architecture names. Since architectures are registered during the
1036 _initialize phase this function only returns useful information
1037 once initialization has been completed. */
1039 extern const char **gdbarch_printable_names (void);
1042 /* Helper function. Search the list of ARCHES for a GDBARCH that
1043 matches the information provided by INFO. */
1045 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1048 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1049 basic initialization using values obtained from the INFO andTDEP
1050 parameters. set_gdbarch_*() functions are called to complete the
1051 initialization of the object. */
1053 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1056 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1057 It is assumed that the caller freeds the \`\`struct
1060 extern void gdbarch_free (struct gdbarch *);
1063 /* Helper function. Force an update of the current architecture.
1065 The actual architecture selected is determined by INFO, \`\`(gdb) set
1066 architecture'' et.al., the existing architecture and BFD's default
1067 architecture. INFO should be initialized to zero and then selected
1068 fields should be updated.
1070 Returns non-zero if the update succeeds */
1072 extern int gdbarch_update_p (struct gdbarch_info info);
1076 /* Register per-architecture data-pointer.
1078 Reserve space for a per-architecture data-pointer. An identifier
1079 for the reserved data-pointer is returned. That identifer should
1080 be saved in a local static variable.
1082 The per-architecture data-pointer can be initialized in one of two
1083 ways: The value can be set explicitly using a call to
1084 set_gdbarch_data(); the value can be set implicitly using the value
1085 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
1086 called after the basic architecture vector has been created.
1088 When a previously created architecture is re-selected, the
1089 per-architecture data-pointer for that previous architecture is
1090 restored. INIT() is not called.
1092 During initialization, multiple assignments of the data-pointer are
1093 allowed, non-NULL values are deleted by calling FREE(). If the
1094 architecture is deleted using gdbarch_free() all non-NULL data
1095 pointers are also deleted using FREE().
1097 Multiple registrarants for any architecture are allowed (and
1098 strongly encouraged). */
1100 struct gdbarch_data;
1102 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1103 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1105 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1106 gdbarch_data_free_ftype *free);
1107 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1108 struct gdbarch_data *data,
1111 extern void *gdbarch_data (struct gdbarch_data*);
1114 /* Register per-architecture memory region.
1116 Provide a memory-region swap mechanism. Per-architecture memory
1117 region are created. These memory regions are swapped whenever the
1118 architecture is changed. For a new architecture, the memory region
1119 is initialized with zero (0) and the INIT function is called.
1121 Memory regions are swapped / initialized in the order that they are
1122 registered. NULL DATA and/or INIT values can be specified.
1124 New code should use register_gdbarch_data(). */
1126 typedef void (gdbarch_swap_ftype) (void);
1127 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1128 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1132 /* The target-system-dependent byte order is dynamic */
1134 extern int target_byte_order;
1135 #ifndef TARGET_BYTE_ORDER
1136 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1139 extern int target_byte_order_auto;
1140 #ifndef TARGET_BYTE_ORDER_AUTO
1141 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1146 /* The target-system-dependent BFD architecture is dynamic */
1148 extern int target_architecture_auto;
1149 #ifndef TARGET_ARCHITECTURE_AUTO
1150 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1153 extern const struct bfd_arch_info *target_architecture;
1154 #ifndef TARGET_ARCHITECTURE
1155 #define TARGET_ARCHITECTURE (target_architecture + 0)
1159 /* The target-system-dependent disassembler is semi-dynamic */
1161 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1162 unsigned int len, disassemble_info *info);
1164 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1165 disassemble_info *info);
1167 extern void dis_asm_print_address (bfd_vma addr,
1168 disassemble_info *info);
1170 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1171 extern disassemble_info tm_print_insn_info;
1172 #ifndef TARGET_PRINT_INSN_INFO
1173 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1178 /* Set the dynamic target-system-dependent parameters (architecture,
1179 byte-order, ...) using information found in the BFD */
1181 extern void set_gdbarch_from_file (bfd *);
1184 /* Initialize the current architecture to the "first" one we find on
1187 extern void initialize_current_architecture (void);
1189 /* For non-multiarched targets, do any initialization of the default
1190 gdbarch object necessary after the _initialize_MODULE functions
1192 extern void initialize_non_multiarch ();
1194 /* gdbarch trace variable */
1195 extern int gdbarch_debug;
1197 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1202 #../move-if-change new-gdbarch.h gdbarch.h
1203 compare_new gdbarch.h
1210 exec > new-gdbarch.c
1215 #include "arch-utils.h"
1219 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1221 /* Just include everything in sight so that the every old definition
1222 of macro is visible. */
1223 #include "gdb_string.h"
1227 #include "inferior.h"
1228 #include "breakpoint.h"
1229 #include "gdb_wait.h"
1230 #include "gdbcore.h"
1233 #include "gdbthread.h"
1234 #include "annotate.h"
1235 #include "symfile.h" /* for overlay functions */
1236 #include "value.h" /* For old tm.h/nm.h macros. */
1240 #include "floatformat.h"
1242 #include "gdb_assert.h"
1243 #include "gdb-events.h"
1245 /* Static function declarations */
1247 static void verify_gdbarch (struct gdbarch *gdbarch);
1248 static void alloc_gdbarch_data (struct gdbarch *);
1249 static void init_gdbarch_data (struct gdbarch *);
1250 static void free_gdbarch_data (struct gdbarch *);
1251 static void init_gdbarch_swap (struct gdbarch *);
1252 static void swapout_gdbarch_swap (struct gdbarch *);
1253 static void swapin_gdbarch_swap (struct gdbarch *);
1255 /* Non-zero if we want to trace architecture code. */
1257 #ifndef GDBARCH_DEBUG
1258 #define GDBARCH_DEBUG 0
1260 int gdbarch_debug = GDBARCH_DEBUG;
1264 # gdbarch open the gdbarch object
1266 printf "/* Maintain the struct gdbarch object */\n"
1268 printf "struct gdbarch\n"
1270 printf " /* basic architectural information */\n"
1271 function_list |
while do_read
1275 printf " ${returntype} ${function};\n"
1279 printf " /* target specific vector. */\n"
1280 printf " struct gdbarch_tdep *tdep;\n"
1281 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1283 printf " /* per-architecture data-pointers */\n"
1284 printf " unsigned nr_data;\n"
1285 printf " void **data;\n"
1287 printf " /* per-architecture swap-regions */\n"
1288 printf " struct gdbarch_swap *swap;\n"
1291 /* Multi-arch values.
1293 When extending this structure you must:
1295 Add the field below.
1297 Declare set/get functions and define the corresponding
1300 gdbarch_alloc(): If zero/NULL is not a suitable default,
1301 initialize the new field.
1303 verify_gdbarch(): Confirm that the target updated the field
1306 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1309 \`\`startup_gdbarch()'': Append an initial value to the static
1310 variable (base values on the host's c-type system).
1312 get_gdbarch(): Implement the set/get functions (probably using
1313 the macro's as shortcuts).
1318 function_list |
while do_read
1320 if class_is_variable_p
1322 printf " ${returntype} ${function};\n"
1323 elif class_is_function_p
1325 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1330 # A pre-initialized vector
1334 /* The default architecture uses host values (for want of a better
1338 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1340 printf "struct gdbarch startup_gdbarch =\n"
1342 printf " /* basic architecture information */\n"
1343 function_list |
while do_read
1347 printf " ${staticdefault},\n"
1351 /* target specific vector and its dump routine */
1353 /*per-architecture data-pointers and swap regions */
1355 /* Multi-arch values */
1357 function_list |
while do_read
1359 if class_is_function_p || class_is_variable_p
1361 printf " ${staticdefault},\n"
1365 /* startup_gdbarch() */
1368 struct gdbarch *current_gdbarch = &startup_gdbarch;
1370 /* Do any initialization needed for a non-multiarch configuration
1371 after the _initialize_MODULE functions have been run. */
1373 initialize_non_multiarch ()
1375 alloc_gdbarch_data (&startup_gdbarch);
1376 init_gdbarch_swap (&startup_gdbarch);
1377 init_gdbarch_data (&startup_gdbarch);
1381 # Create a new gdbarch struct
1385 /* Create a new \`\`struct gdbarch'' based on information provided by
1386 \`\`struct gdbarch_info''. */
1391 gdbarch_alloc (const struct gdbarch_info *info,
1392 struct gdbarch_tdep *tdep)
1394 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1395 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1396 the current local architecture and not the previous global
1397 architecture. This ensures that the new architectures initial
1398 values are not influenced by the previous architecture. Once
1399 everything is parameterised with gdbarch, this will go away. */
1400 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1401 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1403 alloc_gdbarch_data (current_gdbarch);
1405 current_gdbarch->tdep = tdep;
1408 function_list |
while do_read
1412 printf " current_gdbarch->${function} = info->${function};\n"
1416 printf " /* Force the explicit initialization of these. */\n"
1417 function_list |
while do_read
1419 if class_is_function_p || class_is_variable_p
1421 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1423 printf " current_gdbarch->${function} = ${predefault};\n"
1428 /* gdbarch_alloc() */
1430 return current_gdbarch;
1434 # Free a gdbarch struct.
1438 /* Free a gdbarch struct. This should never happen in normal
1439 operation --- once you've created a gdbarch, you keep it around.
1440 However, if an architecture's init function encounters an error
1441 building the structure, it may need to clean up a partially
1442 constructed gdbarch. */
1445 gdbarch_free (struct gdbarch *arch)
1447 gdb_assert (arch != NULL);
1448 free_gdbarch_data (arch);
1453 # verify a new architecture
1456 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1460 verify_gdbarch (struct gdbarch *gdbarch)
1462 struct ui_file *log;
1463 struct cleanup *cleanups;
1466 /* Only perform sanity checks on a multi-arch target. */
1467 if (!GDB_MULTI_ARCH)
1469 log = mem_fileopen ();
1470 cleanups = make_cleanup_ui_file_delete (log);
1472 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1473 fprintf_unfiltered (log, "\n\tbyte-order");
1474 if (gdbarch->bfd_arch_info == NULL)
1475 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1476 /* Check those that need to be defined for the given multi-arch level. */
1478 function_list |
while do_read
1480 if class_is_function_p || class_is_variable_p
1482 if [ "x${invalid_p}" = "x0" ]
1484 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1485 elif class_is_predicate_p
1487 printf " /* Skip verify of ${function}, has predicate */\n"
1488 # FIXME: See do_read for potential simplification
1489 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1491 printf " if (${invalid_p})\n"
1492 printf " gdbarch->${function} = ${postdefault};\n"
1493 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1495 printf " if (gdbarch->${function} == ${predefault})\n"
1496 printf " gdbarch->${function} = ${postdefault};\n"
1497 elif [ -n "${postdefault}" ]
1499 printf " if (gdbarch->${function} == 0)\n"
1500 printf " gdbarch->${function} = ${postdefault};\n"
1501 elif [ -n "${invalid_p}" ]
1503 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1504 printf " && (${invalid_p}))\n"
1505 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1506 elif [ -n "${predefault}" ]
1508 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1509 printf " && (gdbarch->${function} == ${predefault}))\n"
1510 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1515 buf = ui_file_xstrdup (log, &dummy);
1516 make_cleanup (xfree, buf);
1517 if (strlen (buf) > 0)
1518 internal_error (__FILE__, __LINE__,
1519 "verify_gdbarch: the following are invalid ...%s",
1521 do_cleanups (cleanups);
1525 # dump the structure
1529 /* Print out the details of the current architecture. */
1531 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1532 just happens to match the global variable \`\`current_gdbarch''. That
1533 way macros refering to that variable get the local and not the global
1534 version - ulgh. Once everything is parameterised with gdbarch, this
1538 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1540 fprintf_unfiltered (file,
1541 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1544 function_list |
sort -t: +2 |
while do_read
1546 # multiarch functions don't have macros.
1547 if class_is_multiarch_p
1549 printf " if (GDB_MULTI_ARCH)\n"
1550 printf " fprintf_unfiltered (file,\n"
1551 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1552 printf " (long) current_gdbarch->${function});\n"
1555 # Print the macro definition.
1556 printf "#ifdef ${macro}\n"
1557 if [ "x${returntype}" = "xvoid" ]
1559 printf "#if GDB_MULTI_ARCH\n"
1560 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1562 if class_is_function_p
1564 printf " fprintf_unfiltered (file,\n"
1565 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1566 printf " \"${macro}(${actual})\",\n"
1567 printf " XSTRING (${macro} (${actual})));\n"
1569 printf " fprintf_unfiltered (file,\n"
1570 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1571 printf " XSTRING (${macro}));\n"
1573 # Print the architecture vector value
1574 if [ "x${returntype}" = "xvoid" ]
1578 if [ "x${print_p}" = "x()" ]
1580 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1581 elif [ "x${print_p}" = "x0" ]
1583 printf " /* skip print of ${macro}, print_p == 0. */\n"
1584 elif [ -n "${print_p}" ]
1586 printf " if (${print_p})\n"
1587 printf " fprintf_unfiltered (file,\n"
1588 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1589 printf " ${print});\n"
1590 elif class_is_function_p
1592 printf " if (GDB_MULTI_ARCH)\n"
1593 printf " fprintf_unfiltered (file,\n"
1594 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1595 printf " (long) current_gdbarch->${function}\n"
1596 printf " /*${macro} ()*/);\n"
1598 printf " fprintf_unfiltered (file,\n"
1599 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1600 printf " ${print});\n"
1605 if (current_gdbarch->dump_tdep != NULL)
1606 current_gdbarch->dump_tdep (current_gdbarch, file);
1614 struct gdbarch_tdep *
1615 gdbarch_tdep (struct gdbarch *gdbarch)
1617 if (gdbarch_debug >= 2)
1618 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1619 return gdbarch->tdep;
1623 function_list |
while do_read
1625 if class_is_predicate_p
1629 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1631 if [ -n "${valid_p}" ]
1633 printf " return ${valid_p};\n"
1635 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1639 if class_is_function_p
1642 printf "${returntype}\n"
1643 if [ "x${formal}" = "xvoid" ]
1645 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1647 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1650 printf " if (gdbarch->${function} == 0)\n"
1651 printf " internal_error (__FILE__, __LINE__,\n"
1652 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1653 printf " if (gdbarch_debug >= 2)\n"
1654 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1655 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1657 if class_is_multiarch_p
1664 if class_is_multiarch_p
1666 params
="gdbarch, ${actual}"
1671 if [ "x${returntype}" = "xvoid" ]
1673 printf " gdbarch->${function} (${params});\n"
1675 printf " return gdbarch->${function} (${params});\n"
1680 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1681 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1683 printf " gdbarch->${function} = ${function};\n"
1685 elif class_is_variable_p
1688 printf "${returntype}\n"
1689 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1691 if [ "x${invalid_p}" = "x0" ]
1693 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1694 elif [ -n "${invalid_p}" ]
1696 printf " if (${invalid_p})\n"
1697 printf " internal_error (__FILE__, __LINE__,\n"
1698 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1699 elif [ -n "${predefault}" ]
1701 printf " if (gdbarch->${function} == ${predefault})\n"
1702 printf " internal_error (__FILE__, __LINE__,\n"
1703 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1705 printf " if (gdbarch_debug >= 2)\n"
1706 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1707 printf " return gdbarch->${function};\n"
1711 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1712 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1714 printf " gdbarch->${function} = ${function};\n"
1716 elif class_is_info_p
1719 printf "${returntype}\n"
1720 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1722 printf " if (gdbarch_debug >= 2)\n"
1723 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1724 printf " return gdbarch->${function};\n"
1729 # All the trailing guff
1733 /* Keep a registry of per-architecture data-pointers required by GDB
1739 gdbarch_data_init_ftype *init;
1740 gdbarch_data_free_ftype *free;
1743 struct gdbarch_data_registration
1745 struct gdbarch_data *data;
1746 struct gdbarch_data_registration *next;
1749 struct gdbarch_data_registry
1752 struct gdbarch_data_registration *registrations;
1755 struct gdbarch_data_registry gdbarch_data_registry =
1760 struct gdbarch_data *
1761 register_gdbarch_data (gdbarch_data_init_ftype *init,
1762 gdbarch_data_free_ftype *free)
1764 struct gdbarch_data_registration **curr;
1765 for (curr = &gdbarch_data_registry.registrations;
1767 curr = &(*curr)->next);
1768 (*curr) = XMALLOC (struct gdbarch_data_registration);
1769 (*curr)->next = NULL;
1770 (*curr)->data = XMALLOC (struct gdbarch_data);
1771 (*curr)->data->index = gdbarch_data_registry.nr++;
1772 (*curr)->data->init = init;
1773 (*curr)->data->free = free;
1774 return (*curr)->data;
1778 /* Walk through all the registered users initializing each in turn. */
1781 init_gdbarch_data (struct gdbarch *gdbarch)
1783 struct gdbarch_data_registration *rego;
1784 for (rego = gdbarch_data_registry.registrations;
1788 struct gdbarch_data *data = rego->data;
1789 gdb_assert (data->index < gdbarch->nr_data);
1790 if (data->init != NULL)
1792 void *pointer = data->init (gdbarch);
1793 set_gdbarch_data (gdbarch, data, pointer);
1798 /* Create/delete the gdbarch data vector. */
1801 alloc_gdbarch_data (struct gdbarch *gdbarch)
1803 gdb_assert (gdbarch->data == NULL);
1804 gdbarch->nr_data = gdbarch_data_registry.nr;
1805 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1809 free_gdbarch_data (struct gdbarch *gdbarch)
1811 struct gdbarch_data_registration *rego;
1812 gdb_assert (gdbarch->data != NULL);
1813 for (rego = gdbarch_data_registry.registrations;
1817 struct gdbarch_data *data = rego->data;
1818 gdb_assert (data->index < gdbarch->nr_data);
1819 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1821 data->free (gdbarch, gdbarch->data[data->index]);
1822 gdbarch->data[data->index] = NULL;
1825 xfree (gdbarch->data);
1826 gdbarch->data = NULL;
1830 /* Initialize the current value of thee specified per-architecture
1834 set_gdbarch_data (struct gdbarch *gdbarch,
1835 struct gdbarch_data *data,
1838 gdb_assert (data->index < gdbarch->nr_data);
1839 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1840 data->free (gdbarch, gdbarch->data[data->index]);
1841 gdbarch->data[data->index] = pointer;
1844 /* Return the current value of the specified per-architecture
1848 gdbarch_data (struct gdbarch_data *data)
1850 gdb_assert (data->index < current_gdbarch->nr_data);
1851 return current_gdbarch->data[data->index];
1856 /* Keep a registry of swapped data required by GDB modules. */
1861 struct gdbarch_swap_registration *source;
1862 struct gdbarch_swap *next;
1865 struct gdbarch_swap_registration
1868 unsigned long sizeof_data;
1869 gdbarch_swap_ftype *init;
1870 struct gdbarch_swap_registration *next;
1873 struct gdbarch_swap_registry
1876 struct gdbarch_swap_registration *registrations;
1879 struct gdbarch_swap_registry gdbarch_swap_registry =
1885 register_gdbarch_swap (void *data,
1886 unsigned long sizeof_data,
1887 gdbarch_swap_ftype *init)
1889 struct gdbarch_swap_registration **rego;
1890 for (rego = &gdbarch_swap_registry.registrations;
1892 rego = &(*rego)->next);
1893 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1894 (*rego)->next = NULL;
1895 (*rego)->init = init;
1896 (*rego)->data = data;
1897 (*rego)->sizeof_data = sizeof_data;
1902 init_gdbarch_swap (struct gdbarch *gdbarch)
1904 struct gdbarch_swap_registration *rego;
1905 struct gdbarch_swap **curr = &gdbarch->swap;
1906 for (rego = gdbarch_swap_registry.registrations;
1910 if (rego->data != NULL)
1912 (*curr) = XMALLOC (struct gdbarch_swap);
1913 (*curr)->source = rego;
1914 (*curr)->swap = xmalloc (rego->sizeof_data);
1915 (*curr)->next = NULL;
1916 memset (rego->data, 0, rego->sizeof_data);
1917 curr = &(*curr)->next;
1919 if (rego->init != NULL)
1925 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1927 struct gdbarch_swap *curr;
1928 for (curr = gdbarch->swap;
1931 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1935 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1937 struct gdbarch_swap *curr;
1938 for (curr = gdbarch->swap;
1941 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1945 /* Keep a registry of the architectures known by GDB. */
1947 struct gdbarch_registration
1949 enum bfd_architecture bfd_architecture;
1950 gdbarch_init_ftype *init;
1951 gdbarch_dump_tdep_ftype *dump_tdep;
1952 struct gdbarch_list *arches;
1953 struct gdbarch_registration *next;
1956 static struct gdbarch_registration *gdbarch_registry = NULL;
1959 append_name (const char ***buf, int *nr, const char *name)
1961 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1967 gdbarch_printable_names (void)
1971 /* Accumulate a list of names based on the registed list of
1973 enum bfd_architecture a;
1975 const char **arches = NULL;
1976 struct gdbarch_registration *rego;
1977 for (rego = gdbarch_registry;
1981 const struct bfd_arch_info *ap;
1982 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1984 internal_error (__FILE__, __LINE__,
1985 "gdbarch_architecture_names: multi-arch unknown");
1988 append_name (&arches, &nr_arches, ap->printable_name);
1993 append_name (&arches, &nr_arches, NULL);
1997 /* Just return all the architectures that BFD knows. Assume that
1998 the legacy architecture framework supports them. */
1999 return bfd_arch_list ();
2004 gdbarch_register (enum bfd_architecture bfd_architecture,
2005 gdbarch_init_ftype *init,
2006 gdbarch_dump_tdep_ftype *dump_tdep)
2008 struct gdbarch_registration **curr;
2009 const struct bfd_arch_info *bfd_arch_info;
2010 /* Check that BFD recognizes this architecture */
2011 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2012 if (bfd_arch_info == NULL)
2014 internal_error (__FILE__, __LINE__,
2015 "gdbarch: Attempt to register unknown architecture (%d)",
2018 /* Check that we haven't seen this architecture before */
2019 for (curr = &gdbarch_registry;
2021 curr = &(*curr)->next)
2023 if (bfd_architecture == (*curr)->bfd_architecture)
2024 internal_error (__FILE__, __LINE__,
2025 "gdbarch: Duplicate registraration of architecture (%s)",
2026 bfd_arch_info->printable_name);
2030 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2031 bfd_arch_info->printable_name,
2034 (*curr) = XMALLOC (struct gdbarch_registration);
2035 (*curr)->bfd_architecture = bfd_architecture;
2036 (*curr)->init = init;
2037 (*curr)->dump_tdep = dump_tdep;
2038 (*curr)->arches = NULL;
2039 (*curr)->next = NULL;
2040 /* When non- multi-arch, install whatever target dump routine we've
2041 been provided - hopefully that routine has been written correctly
2042 and works regardless of multi-arch. */
2043 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2044 && startup_gdbarch.dump_tdep == NULL)
2045 startup_gdbarch.dump_tdep = dump_tdep;
2049 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2050 gdbarch_init_ftype *init)
2052 gdbarch_register (bfd_architecture, init, NULL);
2056 /* Look for an architecture using gdbarch_info. Base search on only
2057 BFD_ARCH_INFO and BYTE_ORDER. */
2059 struct gdbarch_list *
2060 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2061 const struct gdbarch_info *info)
2063 for (; arches != NULL; arches = arches->next)
2065 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2067 if (info->byte_order != arches->gdbarch->byte_order)
2075 /* Update the current architecture. Return ZERO if the update request
2079 gdbarch_update_p (struct gdbarch_info info)
2081 struct gdbarch *new_gdbarch;
2082 struct gdbarch_registration *rego;
2084 /* Fill in missing parts of the INFO struct using a number of
2085 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2087 /* \`\`(gdb) set architecture ...'' */
2088 if (info.bfd_arch_info == NULL
2089 && !TARGET_ARCHITECTURE_AUTO)
2090 info.bfd_arch_info = TARGET_ARCHITECTURE;
2091 if (info.bfd_arch_info == NULL
2092 && info.abfd != NULL
2093 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2094 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2095 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2096 if (info.bfd_arch_info == NULL)
2097 info.bfd_arch_info = TARGET_ARCHITECTURE;
2099 /* \`\`(gdb) set byte-order ...'' */
2100 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2101 && !TARGET_BYTE_ORDER_AUTO)
2102 info.byte_order = TARGET_BYTE_ORDER;
2103 /* From the INFO struct. */
2104 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2105 && info.abfd != NULL)
2106 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2107 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2108 : BFD_ENDIAN_UNKNOWN);
2109 /* From the current target. */
2110 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2111 info.byte_order = TARGET_BYTE_ORDER;
2113 /* Must have found some sort of architecture. */
2114 gdb_assert (info.bfd_arch_info != NULL);
2118 fprintf_unfiltered (gdb_stdlog,
2119 "gdbarch_update: info.bfd_arch_info %s\n",
2120 (info.bfd_arch_info != NULL
2121 ? info.bfd_arch_info->printable_name
2123 fprintf_unfiltered (gdb_stdlog,
2124 "gdbarch_update: info.byte_order %d (%s)\n",
2126 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2127 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2129 fprintf_unfiltered (gdb_stdlog,
2130 "gdbarch_update: info.abfd 0x%lx\n",
2132 fprintf_unfiltered (gdb_stdlog,
2133 "gdbarch_update: info.tdep_info 0x%lx\n",
2134 (long) info.tdep_info);
2137 /* Find the target that knows about this architecture. */
2138 for (rego = gdbarch_registry;
2141 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2146 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2150 /* Ask the target for a replacement architecture. */
2151 new_gdbarch = rego->init (info, rego->arches);
2153 /* Did the target like it? No. Reject the change. */
2154 if (new_gdbarch == NULL)
2157 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2161 /* Did the architecture change? No. Do nothing. */
2162 if (current_gdbarch == new_gdbarch)
2165 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2167 new_gdbarch->bfd_arch_info->printable_name);
2171 /* Swap all data belonging to the old target out */
2172 swapout_gdbarch_swap (current_gdbarch);
2174 /* Is this a pre-existing architecture? Yes. Move it to the front
2175 of the list of architectures (keeping the list sorted Most
2176 Recently Used) and then copy it in. */
2178 struct gdbarch_list **list;
2179 for (list = ®o->arches;
2181 list = &(*list)->next)
2183 if ((*list)->gdbarch == new_gdbarch)
2185 struct gdbarch_list *this;
2187 fprintf_unfiltered (gdb_stdlog,
2188 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2190 new_gdbarch->bfd_arch_info->printable_name);
2193 (*list) = this->next;
2194 /* Insert in the front. */
2195 this->next = rego->arches;
2196 rego->arches = this;
2197 /* Copy the new architecture in. */
2198 current_gdbarch = new_gdbarch;
2199 swapin_gdbarch_swap (new_gdbarch);
2200 architecture_changed_event ();
2206 /* Prepend this new architecture to the architecture list (keep the
2207 list sorted Most Recently Used). */
2209 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2210 this->next = rego->arches;
2211 this->gdbarch = new_gdbarch;
2212 rego->arches = this;
2215 /* Switch to this new architecture. Dump it out. */
2216 current_gdbarch = new_gdbarch;
2219 fprintf_unfiltered (gdb_stdlog,
2220 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2222 new_gdbarch->bfd_arch_info->printable_name);
2225 /* Check that the newly installed architecture is valid. Plug in
2226 any post init values. */
2227 new_gdbarch->dump_tdep = rego->dump_tdep;
2228 verify_gdbarch (new_gdbarch);
2230 /* Initialize the per-architecture memory (swap) areas.
2231 CURRENT_GDBARCH must be update before these modules are
2233 init_gdbarch_swap (new_gdbarch);
2235 /* Initialize the per-architecture data-pointer of all parties that
2236 registered an interest in this architecture. CURRENT_GDBARCH
2237 must be updated before these modules are called. */
2238 init_gdbarch_data (new_gdbarch);
2239 architecture_changed_event ();
2242 gdbarch_dump (current_gdbarch, gdb_stdlog);
2250 /* Pointer to the target-dependent disassembly function. */
2251 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2252 disassemble_info tm_print_insn_info;
2255 extern void _initialize_gdbarch (void);
2258 _initialize_gdbarch (void)
2260 struct cmd_list_element *c;
2262 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2263 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2264 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2265 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2266 tm_print_insn_info.print_address_func = dis_asm_print_address;
2268 add_show_from_set (add_set_cmd ("arch",
2271 (char *)&gdbarch_debug,
2272 "Set architecture debugging.\\n\\
2273 When non-zero, architecture debugging is enabled.", &setdebuglist),
2275 c = add_set_cmd ("archdebug",
2278 (char *)&gdbarch_debug,
2279 "Set architecture debugging.\\n\\
2280 When non-zero, architecture debugging is enabled.", &setlist);
2282 deprecate_cmd (c, "set debug arch");
2283 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2289 #../move-if-change new-gdbarch.c gdbarch.c
2290 compare_new gdbarch.c