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 *gdbarch, 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 clear_gdbarch_swap (struct gdbarch *);
1253 static void swapout_gdbarch_swap (struct gdbarch *);
1254 static void swapin_gdbarch_swap (struct gdbarch *);
1256 /* Non-zero if we want to trace architecture code. */
1258 #ifndef GDBARCH_DEBUG
1259 #define GDBARCH_DEBUG 0
1261 int gdbarch_debug = GDBARCH_DEBUG;
1265 # gdbarch open the gdbarch object
1267 printf "/* Maintain the struct gdbarch object */\n"
1269 printf "struct gdbarch\n"
1271 printf " /* basic architectural information */\n"
1272 function_list |
while do_read
1276 printf " ${returntype} ${function};\n"
1280 printf " /* target specific vector. */\n"
1281 printf " struct gdbarch_tdep *tdep;\n"
1282 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1284 printf " /* per-architecture data-pointers */\n"
1285 printf " unsigned nr_data;\n"
1286 printf " void **data;\n"
1288 printf " /* per-architecture swap-regions */\n"
1289 printf " struct gdbarch_swap *swap;\n"
1292 /* Multi-arch values.
1294 When extending this structure you must:
1296 Add the field below.
1298 Declare set/get functions and define the corresponding
1301 gdbarch_alloc(): If zero/NULL is not a suitable default,
1302 initialize the new field.
1304 verify_gdbarch(): Confirm that the target updated the field
1307 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1310 \`\`startup_gdbarch()'': Append an initial value to the static
1311 variable (base values on the host's c-type system).
1313 get_gdbarch(): Implement the set/get functions (probably using
1314 the macro's as shortcuts).
1319 function_list |
while do_read
1321 if class_is_variable_p
1323 printf " ${returntype} ${function};\n"
1324 elif class_is_function_p
1326 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1331 # A pre-initialized vector
1335 /* The default architecture uses host values (for want of a better
1339 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1341 printf "struct gdbarch startup_gdbarch =\n"
1343 printf " /* basic architecture information */\n"
1344 function_list |
while do_read
1348 printf " ${staticdefault},\n"
1352 /* target specific vector and its dump routine */
1354 /*per-architecture data-pointers and swap regions */
1356 /* Multi-arch values */
1358 function_list |
while do_read
1360 if class_is_function_p || class_is_variable_p
1362 printf " ${staticdefault},\n"
1366 /* startup_gdbarch() */
1369 struct gdbarch *current_gdbarch = &startup_gdbarch;
1371 /* Do any initialization needed for a non-multiarch configuration
1372 after the _initialize_MODULE functions have been run. */
1374 initialize_non_multiarch ()
1376 alloc_gdbarch_data (&startup_gdbarch);
1377 /* Ensure that all swap areas are zeroed so that they again think
1378 they are starting from scratch. */
1379 clear_gdbarch_swap (&startup_gdbarch);
1380 init_gdbarch_swap (&startup_gdbarch);
1381 init_gdbarch_data (&startup_gdbarch);
1385 # Create a new gdbarch struct
1389 /* Create a new \`\`struct gdbarch'' based on information provided by
1390 \`\`struct gdbarch_info''. */
1395 gdbarch_alloc (const struct gdbarch_info *info,
1396 struct gdbarch_tdep *tdep)
1398 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1399 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1400 the current local architecture and not the previous global
1401 architecture. This ensures that the new architectures initial
1402 values are not influenced by the previous architecture. Once
1403 everything is parameterised with gdbarch, this will go away. */
1404 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1405 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1407 alloc_gdbarch_data (current_gdbarch);
1409 current_gdbarch->tdep = tdep;
1412 function_list |
while do_read
1416 printf " current_gdbarch->${function} = info->${function};\n"
1420 printf " /* Force the explicit initialization of these. */\n"
1421 function_list |
while do_read
1423 if class_is_function_p || class_is_variable_p
1425 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1427 printf " current_gdbarch->${function} = ${predefault};\n"
1432 /* gdbarch_alloc() */
1434 return current_gdbarch;
1438 # Free a gdbarch struct.
1442 /* Free a gdbarch struct. This should never happen in normal
1443 operation --- once you've created a gdbarch, you keep it around.
1444 However, if an architecture's init function encounters an error
1445 building the structure, it may need to clean up a partially
1446 constructed gdbarch. */
1449 gdbarch_free (struct gdbarch *arch)
1451 gdb_assert (arch != NULL);
1452 free_gdbarch_data (arch);
1457 # verify a new architecture
1460 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1464 verify_gdbarch (struct gdbarch *gdbarch)
1466 struct ui_file *log;
1467 struct cleanup *cleanups;
1470 /* Only perform sanity checks on a multi-arch target. */
1471 if (!GDB_MULTI_ARCH)
1473 log = mem_fileopen ();
1474 cleanups = make_cleanup_ui_file_delete (log);
1476 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1477 fprintf_unfiltered (log, "\n\tbyte-order");
1478 if (gdbarch->bfd_arch_info == NULL)
1479 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1480 /* Check those that need to be defined for the given multi-arch level. */
1482 function_list |
while do_read
1484 if class_is_function_p || class_is_variable_p
1486 if [ "x${invalid_p}" = "x0" ]
1488 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1489 elif class_is_predicate_p
1491 printf " /* Skip verify of ${function}, has predicate */\n"
1492 # FIXME: See do_read for potential simplification
1493 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1495 printf " if (${invalid_p})\n"
1496 printf " gdbarch->${function} = ${postdefault};\n"
1497 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1499 printf " if (gdbarch->${function} == ${predefault})\n"
1500 printf " gdbarch->${function} = ${postdefault};\n"
1501 elif [ -n "${postdefault}" ]
1503 printf " if (gdbarch->${function} == 0)\n"
1504 printf " gdbarch->${function} = ${postdefault};\n"
1505 elif [ -n "${invalid_p}" ]
1507 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1508 printf " && (${invalid_p}))\n"
1509 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1510 elif [ -n "${predefault}" ]
1512 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1513 printf " && (gdbarch->${function} == ${predefault}))\n"
1514 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1519 buf = ui_file_xstrdup (log, &dummy);
1520 make_cleanup (xfree, buf);
1521 if (strlen (buf) > 0)
1522 internal_error (__FILE__, __LINE__,
1523 "verify_gdbarch: the following are invalid ...%s",
1525 do_cleanups (cleanups);
1529 # dump the structure
1533 /* Print out the details of the current architecture. */
1535 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1536 just happens to match the global variable \`\`current_gdbarch''. That
1537 way macros refering to that variable get the local and not the global
1538 version - ulgh. Once everything is parameterised with gdbarch, this
1542 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1544 fprintf_unfiltered (file,
1545 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1548 function_list |
sort -t: +2 |
while do_read
1550 # multiarch functions don't have macros.
1551 if class_is_multiarch_p
1553 printf " if (GDB_MULTI_ARCH)\n"
1554 printf " fprintf_unfiltered (file,\n"
1555 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1556 printf " (long) current_gdbarch->${function});\n"
1559 # Print the macro definition.
1560 printf "#ifdef ${macro}\n"
1561 if [ "x${returntype}" = "xvoid" ]
1563 printf "#if GDB_MULTI_ARCH\n"
1564 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1566 if class_is_function_p
1568 printf " fprintf_unfiltered (file,\n"
1569 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1570 printf " \"${macro}(${actual})\",\n"
1571 printf " XSTRING (${macro} (${actual})));\n"
1573 printf " fprintf_unfiltered (file,\n"
1574 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1575 printf " XSTRING (${macro}));\n"
1577 # Print the architecture vector value
1578 if [ "x${returntype}" = "xvoid" ]
1582 if [ "x${print_p}" = "x()" ]
1584 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1585 elif [ "x${print_p}" = "x0" ]
1587 printf " /* skip print of ${macro}, print_p == 0. */\n"
1588 elif [ -n "${print_p}" ]
1590 printf " if (${print_p})\n"
1591 printf " fprintf_unfiltered (file,\n"
1592 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1593 printf " ${print});\n"
1594 elif class_is_function_p
1596 printf " if (GDB_MULTI_ARCH)\n"
1597 printf " fprintf_unfiltered (file,\n"
1598 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1599 printf " (long) current_gdbarch->${function}\n"
1600 printf " /*${macro} ()*/);\n"
1602 printf " fprintf_unfiltered (file,\n"
1603 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1604 printf " ${print});\n"
1609 if (current_gdbarch->dump_tdep != NULL)
1610 current_gdbarch->dump_tdep (current_gdbarch, file);
1618 struct gdbarch_tdep *
1619 gdbarch_tdep (struct gdbarch *gdbarch)
1621 if (gdbarch_debug >= 2)
1622 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1623 return gdbarch->tdep;
1627 function_list |
while do_read
1629 if class_is_predicate_p
1633 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1635 printf " gdb_assert (gdbarch != NULL);\n"
1636 if [ -n "${valid_p}" ]
1638 printf " return ${valid_p};\n"
1640 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1644 if class_is_function_p
1647 printf "${returntype}\n"
1648 if [ "x${formal}" = "xvoid" ]
1650 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1652 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1655 printf " gdb_assert (gdbarch != NULL);\n"
1656 printf " if (gdbarch->${function} == 0)\n"
1657 printf " internal_error (__FILE__, __LINE__,\n"
1658 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1659 printf " if (gdbarch_debug >= 2)\n"
1660 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1661 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1663 if class_is_multiarch_p
1670 if class_is_multiarch_p
1672 params
="gdbarch, ${actual}"
1677 if [ "x${returntype}" = "xvoid" ]
1679 printf " gdbarch->${function} (${params});\n"
1681 printf " return gdbarch->${function} (${params});\n"
1686 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1687 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1689 printf " gdbarch->${function} = ${function};\n"
1691 elif class_is_variable_p
1694 printf "${returntype}\n"
1695 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1697 printf " gdb_assert (gdbarch != NULL);\n"
1698 if [ "x${invalid_p}" = "x0" ]
1700 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1701 elif [ -n "${invalid_p}" ]
1703 printf " if (${invalid_p})\n"
1704 printf " internal_error (__FILE__, __LINE__,\n"
1705 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1706 elif [ -n "${predefault}" ]
1708 printf " if (gdbarch->${function} == ${predefault})\n"
1709 printf " internal_error (__FILE__, __LINE__,\n"
1710 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1712 printf " if (gdbarch_debug >= 2)\n"
1713 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1714 printf " return gdbarch->${function};\n"
1718 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1719 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1721 printf " gdbarch->${function} = ${function};\n"
1723 elif class_is_info_p
1726 printf "${returntype}\n"
1727 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1729 printf " gdb_assert (gdbarch != NULL);\n"
1730 printf " if (gdbarch_debug >= 2)\n"
1731 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1732 printf " return gdbarch->${function};\n"
1737 # All the trailing guff
1741 /* Keep a registry of per-architecture data-pointers required by GDB
1747 gdbarch_data_init_ftype *init;
1748 gdbarch_data_free_ftype *free;
1751 struct gdbarch_data_registration
1753 struct gdbarch_data *data;
1754 struct gdbarch_data_registration *next;
1757 struct gdbarch_data_registry
1760 struct gdbarch_data_registration *registrations;
1763 struct gdbarch_data_registry gdbarch_data_registry =
1768 struct gdbarch_data *
1769 register_gdbarch_data (gdbarch_data_init_ftype *init,
1770 gdbarch_data_free_ftype *free)
1772 struct gdbarch_data_registration **curr;
1773 for (curr = &gdbarch_data_registry.registrations;
1775 curr = &(*curr)->next);
1776 (*curr) = XMALLOC (struct gdbarch_data_registration);
1777 (*curr)->next = NULL;
1778 (*curr)->data = XMALLOC (struct gdbarch_data);
1779 (*curr)->data->index = gdbarch_data_registry.nr++;
1780 (*curr)->data->init = init;
1781 (*curr)->data->free = free;
1782 return (*curr)->data;
1786 /* Walk through all the registered users initializing each in turn. */
1789 init_gdbarch_data (struct gdbarch *gdbarch)
1791 struct gdbarch_data_registration *rego;
1792 for (rego = gdbarch_data_registry.registrations;
1796 struct gdbarch_data *data = rego->data;
1797 gdb_assert (data->index < gdbarch->nr_data);
1798 if (data->init != NULL)
1800 void *pointer = data->init (gdbarch);
1801 set_gdbarch_data (gdbarch, data, pointer);
1806 /* Create/delete the gdbarch data vector. */
1809 alloc_gdbarch_data (struct gdbarch *gdbarch)
1811 gdb_assert (gdbarch->data == NULL);
1812 gdbarch->nr_data = gdbarch_data_registry.nr;
1813 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1817 free_gdbarch_data (struct gdbarch *gdbarch)
1819 struct gdbarch_data_registration *rego;
1820 gdb_assert (gdbarch->data != NULL);
1821 for (rego = gdbarch_data_registry.registrations;
1825 struct gdbarch_data *data = rego->data;
1826 gdb_assert (data->index < gdbarch->nr_data);
1827 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1829 data->free (gdbarch, gdbarch->data[data->index]);
1830 gdbarch->data[data->index] = NULL;
1833 xfree (gdbarch->data);
1834 gdbarch->data = NULL;
1838 /* Initialize the current value of thee specified per-architecture
1842 set_gdbarch_data (struct gdbarch *gdbarch,
1843 struct gdbarch_data *data,
1846 gdb_assert (data->index < gdbarch->nr_data);
1847 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1848 data->free (gdbarch, gdbarch->data[data->index]);
1849 gdbarch->data[data->index] = pointer;
1852 /* Return the current value of the specified per-architecture
1856 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1858 gdb_assert (data->index < gdbarch->nr_data);
1859 return gdbarch->data[data->index];
1864 /* Keep a registry of swapped data required by GDB modules. */
1869 struct gdbarch_swap_registration *source;
1870 struct gdbarch_swap *next;
1873 struct gdbarch_swap_registration
1876 unsigned long sizeof_data;
1877 gdbarch_swap_ftype *init;
1878 struct gdbarch_swap_registration *next;
1881 struct gdbarch_swap_registry
1884 struct gdbarch_swap_registration *registrations;
1887 struct gdbarch_swap_registry gdbarch_swap_registry =
1893 register_gdbarch_swap (void *data,
1894 unsigned long sizeof_data,
1895 gdbarch_swap_ftype *init)
1897 struct gdbarch_swap_registration **rego;
1898 for (rego = &gdbarch_swap_registry.registrations;
1900 rego = &(*rego)->next);
1901 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1902 (*rego)->next = NULL;
1903 (*rego)->init = init;
1904 (*rego)->data = data;
1905 (*rego)->sizeof_data = sizeof_data;
1909 clear_gdbarch_swap (struct gdbarch *gdbarch)
1911 struct gdbarch_swap *curr;
1912 for (curr = gdbarch->swap;
1916 memset (curr->source->data, 0, curr->source->sizeof_data);
1921 init_gdbarch_swap (struct gdbarch *gdbarch)
1923 struct gdbarch_swap_registration *rego;
1924 struct gdbarch_swap **curr = &gdbarch->swap;
1925 for (rego = gdbarch_swap_registry.registrations;
1929 if (rego->data != NULL)
1931 (*curr) = XMALLOC (struct gdbarch_swap);
1932 (*curr)->source = rego;
1933 (*curr)->swap = xmalloc (rego->sizeof_data);
1934 (*curr)->next = NULL;
1935 curr = &(*curr)->next;
1937 if (rego->init != NULL)
1943 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1945 struct gdbarch_swap *curr;
1946 for (curr = gdbarch->swap;
1949 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1953 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1955 struct gdbarch_swap *curr;
1956 for (curr = gdbarch->swap;
1959 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1963 /* Keep a registry of the architectures known by GDB. */
1965 struct gdbarch_registration
1967 enum bfd_architecture bfd_architecture;
1968 gdbarch_init_ftype *init;
1969 gdbarch_dump_tdep_ftype *dump_tdep;
1970 struct gdbarch_list *arches;
1971 struct gdbarch_registration *next;
1974 static struct gdbarch_registration *gdbarch_registry = NULL;
1977 append_name (const char ***buf, int *nr, const char *name)
1979 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1985 gdbarch_printable_names (void)
1989 /* Accumulate a list of names based on the registed list of
1991 enum bfd_architecture a;
1993 const char **arches = NULL;
1994 struct gdbarch_registration *rego;
1995 for (rego = gdbarch_registry;
1999 const struct bfd_arch_info *ap;
2000 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2002 internal_error (__FILE__, __LINE__,
2003 "gdbarch_architecture_names: multi-arch unknown");
2006 append_name (&arches, &nr_arches, ap->printable_name);
2011 append_name (&arches, &nr_arches, NULL);
2015 /* Just return all the architectures that BFD knows. Assume that
2016 the legacy architecture framework supports them. */
2017 return bfd_arch_list ();
2022 gdbarch_register (enum bfd_architecture bfd_architecture,
2023 gdbarch_init_ftype *init,
2024 gdbarch_dump_tdep_ftype *dump_tdep)
2026 struct gdbarch_registration **curr;
2027 const struct bfd_arch_info *bfd_arch_info;
2028 /* Check that BFD recognizes this architecture */
2029 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2030 if (bfd_arch_info == NULL)
2032 internal_error (__FILE__, __LINE__,
2033 "gdbarch: Attempt to register unknown architecture (%d)",
2036 /* Check that we haven't seen this architecture before */
2037 for (curr = &gdbarch_registry;
2039 curr = &(*curr)->next)
2041 if (bfd_architecture == (*curr)->bfd_architecture)
2042 internal_error (__FILE__, __LINE__,
2043 "gdbarch: Duplicate registraration of architecture (%s)",
2044 bfd_arch_info->printable_name);
2048 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2049 bfd_arch_info->printable_name,
2052 (*curr) = XMALLOC (struct gdbarch_registration);
2053 (*curr)->bfd_architecture = bfd_architecture;
2054 (*curr)->init = init;
2055 (*curr)->dump_tdep = dump_tdep;
2056 (*curr)->arches = NULL;
2057 (*curr)->next = NULL;
2058 /* When non- multi-arch, install whatever target dump routine we've
2059 been provided - hopefully that routine has been written correctly
2060 and works regardless of multi-arch. */
2061 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2062 && startup_gdbarch.dump_tdep == NULL)
2063 startup_gdbarch.dump_tdep = dump_tdep;
2067 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2068 gdbarch_init_ftype *init)
2070 gdbarch_register (bfd_architecture, init, NULL);
2074 /* Look for an architecture using gdbarch_info. Base search on only
2075 BFD_ARCH_INFO and BYTE_ORDER. */
2077 struct gdbarch_list *
2078 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2079 const struct gdbarch_info *info)
2081 for (; arches != NULL; arches = arches->next)
2083 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2085 if (info->byte_order != arches->gdbarch->byte_order)
2093 /* Update the current architecture. Return ZERO if the update request
2097 gdbarch_update_p (struct gdbarch_info info)
2099 struct gdbarch *new_gdbarch;
2100 struct gdbarch *old_gdbarch;
2101 struct gdbarch_registration *rego;
2103 /* Fill in missing parts of the INFO struct using a number of
2104 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2106 /* \`\`(gdb) set architecture ...'' */
2107 if (info.bfd_arch_info == NULL
2108 && !TARGET_ARCHITECTURE_AUTO)
2109 info.bfd_arch_info = TARGET_ARCHITECTURE;
2110 if (info.bfd_arch_info == NULL
2111 && info.abfd != NULL
2112 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2113 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2114 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2115 if (info.bfd_arch_info == NULL)
2116 info.bfd_arch_info = TARGET_ARCHITECTURE;
2118 /* \`\`(gdb) set byte-order ...'' */
2119 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2120 && !TARGET_BYTE_ORDER_AUTO)
2121 info.byte_order = TARGET_BYTE_ORDER;
2122 /* From the INFO struct. */
2123 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2124 && info.abfd != NULL)
2125 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2126 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2127 : BFD_ENDIAN_UNKNOWN);
2128 /* From the current target. */
2129 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2130 info.byte_order = TARGET_BYTE_ORDER;
2132 /* Must have found some sort of architecture. */
2133 gdb_assert (info.bfd_arch_info != NULL);
2137 fprintf_unfiltered (gdb_stdlog,
2138 "gdbarch_update: info.bfd_arch_info %s\n",
2139 (info.bfd_arch_info != NULL
2140 ? info.bfd_arch_info->printable_name
2142 fprintf_unfiltered (gdb_stdlog,
2143 "gdbarch_update: info.byte_order %d (%s)\n",
2145 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2146 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2148 fprintf_unfiltered (gdb_stdlog,
2149 "gdbarch_update: info.abfd 0x%lx\n",
2151 fprintf_unfiltered (gdb_stdlog,
2152 "gdbarch_update: info.tdep_info 0x%lx\n",
2153 (long) info.tdep_info);
2156 /* Find the target that knows about this architecture. */
2157 for (rego = gdbarch_registry;
2160 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2165 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2169 /* Swap the data belonging to the old target out setting the
2170 installed data to zero. This stops the ->init() function trying
2171 to refer to the previous architecture's global data structures. */
2172 swapout_gdbarch_swap (current_gdbarch);
2173 clear_gdbarch_swap (current_gdbarch);
2175 /* Save the previously selected architecture, setting the global to
2176 NULL. This stops ->init() trying to use the previous
2177 architecture's configuration. The previous architecture may not
2178 even be of the same architecture family. The most recent
2179 architecture of the same family is found at the head of the
2180 rego->arches list. */
2181 old_gdbarch = current_gdbarch;
2182 current_gdbarch = NULL;
2184 /* Ask the target for a replacement architecture. */
2185 new_gdbarch = rego->init (info, rego->arches);
2187 /* Did the target like it? No. Reject the change and revert to the
2188 old architecture. */
2189 if (new_gdbarch == NULL)
2192 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2193 swapin_gdbarch_swap (old_gdbarch);
2194 current_gdbarch = old_gdbarch;
2198 /* Did the architecture change? No. Oops, put the old architecture
2200 if (old_gdbarch == new_gdbarch)
2203 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2205 new_gdbarch->bfd_arch_info->printable_name);
2206 swapin_gdbarch_swap (old_gdbarch);
2207 current_gdbarch = old_gdbarch;
2211 /* Is this a pre-existing architecture? Yes. Move it to the front
2212 of the list of architectures (keeping the list sorted Most
2213 Recently Used) and then copy it in. */
2215 struct gdbarch_list **list;
2216 for (list = ®o->arches;
2218 list = &(*list)->next)
2220 if ((*list)->gdbarch == new_gdbarch)
2222 struct gdbarch_list *this;
2224 fprintf_unfiltered (gdb_stdlog,
2225 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2227 new_gdbarch->bfd_arch_info->printable_name);
2230 (*list) = this->next;
2231 /* Insert in the front. */
2232 this->next = rego->arches;
2233 rego->arches = this;
2234 /* Copy the new architecture in. */
2235 current_gdbarch = new_gdbarch;
2236 swapin_gdbarch_swap (new_gdbarch);
2237 architecture_changed_event ();
2243 /* Prepend this new architecture to the architecture list (keep the
2244 list sorted Most Recently Used). */
2246 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2247 this->next = rego->arches;
2248 this->gdbarch = new_gdbarch;
2249 rego->arches = this;
2252 /* Switch to this new architecture. Dump it out. */
2253 current_gdbarch = new_gdbarch;
2256 fprintf_unfiltered (gdb_stdlog,
2257 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2259 new_gdbarch->bfd_arch_info->printable_name);
2262 /* Check that the newly installed architecture is valid. Plug in
2263 any post init values. */
2264 new_gdbarch->dump_tdep = rego->dump_tdep;
2265 verify_gdbarch (new_gdbarch);
2267 /* Initialize the per-architecture memory (swap) areas.
2268 CURRENT_GDBARCH must be update before these modules are
2270 init_gdbarch_swap (new_gdbarch);
2272 /* Initialize the per-architecture data-pointer of all parties that
2273 registered an interest in this architecture. CURRENT_GDBARCH
2274 must be updated before these modules are called. */
2275 init_gdbarch_data (new_gdbarch);
2276 architecture_changed_event ();
2279 gdbarch_dump (current_gdbarch, gdb_stdlog);
2287 /* Pointer to the target-dependent disassembly function. */
2288 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2289 disassemble_info tm_print_insn_info;
2292 extern void _initialize_gdbarch (void);
2295 _initialize_gdbarch (void)
2297 struct cmd_list_element *c;
2299 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2300 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2301 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2302 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2303 tm_print_insn_info.print_address_func = dis_asm_print_address;
2305 add_show_from_set (add_set_cmd ("arch",
2308 (char *)&gdbarch_debug,
2309 "Set architecture debugging.\\n\\
2310 When non-zero, architecture debugging is enabled.", &setdebuglist),
2312 c = add_set_cmd ("archdebug",
2315 (char *)&gdbarch_debug,
2316 "Set architecture debugging.\\n\\
2317 When non-zero, architecture debugging is enabled.", &setlist);
2319 deprecate_cmd (c, "set debug arch");
2320 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2326 #../move-if-change new-gdbarch.c gdbarch.c
2327 compare_new gdbarch.c