3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
6 # This file is part of GDB.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 echo "${file} missing? cp new-${file} ${file}" 1>&2
28 elif diff -c ${file} new-
${file}
30 echo "${file} unchanged" 1>&2
32 echo "${file} has changed? cp new-${file} ${file}" 1>&2
37 # Format of the input table
38 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
46 if test "${line}" = ""
49 elif test "${line}" = "#" -a "${comment}" = ""
52 elif expr "${line}" : "#" > /dev
/null
58 # The semantics of IFS varies between different SH's. Some
59 # treat ``::' as three fields while some treat it as just too.
60 # Work around this by eliminating ``::'' ....
61 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
63 OFS
="${IFS}" ; IFS
="[:]"
64 eval read ${read} <<EOF
69 # .... and then going back through each field and strip out those
70 # that ended up with just that space character.
73 if eval test \"\
${${r}}\" = \"\
\"
80 m
) staticdefault
="${predefault}" ;;
81 M
) staticdefault
="0" ;;
82 * ) test "${staticdefault}" || staticdefault
=0 ;;
84 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
85 # multi-arch defaults.
86 # test "${predefault}" || predefault=0
88 # come up with a format, use a few guesses for variables
89 case ":${class}:${fmt}:${print}:" in
91 if [ "${returntype}" = int
]
95 elif [ "${returntype}" = long
]
102 test "${fmt}" ||
fmt="%ld"
103 test "${print}" || print
="(long) ${macro}"
105 case "${invalid_p}" in
108 if [ -n "${predefault}" ]
110 #invalid_p="gdbarch->${function} == ${predefault}"
111 valid_p
="gdbarch->${function} != ${predefault}"
113 #invalid_p="gdbarch->${function} == 0"
114 valid_p
="gdbarch->${function} != 0"
117 * ) valid_p
="!(${invalid_p})"
120 # PREDEFAULT is a valid fallback definition of MEMBER when
121 # multi-arch is not enabled. This ensures that the
122 # default value, when multi-arch is the same as the
123 # default value when not multi-arch. POSTDEFAULT is
124 # always a valid definition of MEMBER as this again
125 # ensures consistency.
127 if [ -n "${postdefault}" ]
129 fallbackdefault
="${postdefault}"
130 elif [ -n "${predefault}" ]
132 fallbackdefault
="${predefault}"
137 #NOT YET: See gdbarch.log for basic verification of
152 fallback_default_p
()
154 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
155 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
158 class_is_variable_p
()
166 class_is_function_p
()
169 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
174 class_is_multiarch_p
()
182 class_is_predicate_p
()
185 *F
* |
*V
* |
*M
* ) true
;;
199 # dump out/verify the doco
209 # F -> function + predicate
210 # hiding a function + predicate to test function validity
213 # V -> variable + predicate
214 # hiding a variable + predicate to test variables validity
216 # hiding something from the ``struct info'' object
217 # m -> multi-arch function
218 # hiding a multi-arch function (parameterised with the architecture)
219 # M -> multi-arch function + predicate
220 # hiding a multi-arch function + predicate to test function validity
224 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
225 # LEVEL is a predicate on checking that a given method is
226 # initialized (using INVALID_P).
230 # The name of the MACRO that this method is to be accessed by.
234 # For functions, the return type; for variables, the data type
238 # For functions, the member function name; for variables, the
239 # variable name. Member function names are always prefixed with
240 # ``gdbarch_'' for name-space purity.
244 # The formal argument list. It is assumed that the formal
245 # argument list includes the actual name of each list element.
246 # A function with no arguments shall have ``void'' as the
247 # formal argument list.
251 # The list of actual arguments. The arguments specified shall
252 # match the FORMAL list given above. Functions with out
253 # arguments leave this blank.
257 # Any GCC attributes that should be attached to the function
258 # declaration. At present this field is unused.
262 # To help with the GDB startup a static gdbarch object is
263 # created. STATICDEFAULT is the value to insert into that
264 # static gdbarch object. Since this a static object only
265 # simple expressions can be used.
267 # If STATICDEFAULT is empty, zero is used.
271 # An initial value to assign to MEMBER of the freshly
272 # malloc()ed gdbarch object. After initialization, the
273 # freshly malloc()ed object is passed to the target
274 # architecture code for further updates.
276 # If PREDEFAULT is empty, zero is used.
278 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
279 # INVALID_P are specified, PREDEFAULT will be used as the
280 # default for the non- multi-arch target.
282 # A zero PREDEFAULT function will force the fallback to call
285 # Variable declarations can refer to ``gdbarch'' which will
286 # contain the current architecture. Care should be taken.
290 # A value to assign to MEMBER of the new gdbarch object should
291 # the target architecture code fail to change the PREDEFAULT
294 # If POSTDEFAULT is empty, no post update is performed.
296 # If both INVALID_P and POSTDEFAULT are non-empty then
297 # INVALID_P will be used to determine if MEMBER should be
298 # changed to POSTDEFAULT.
300 # If a non-empty POSTDEFAULT and a zero INVALID_P are
301 # specified, POSTDEFAULT will be used as the default for the
302 # non- multi-arch target (regardless of the value of
305 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
307 # Variable declarations can refer to ``gdbarch'' which will
308 # contain the current architecture. Care should be taken.
312 # A predicate equation that validates MEMBER. Non-zero is
313 # returned if the code creating the new architecture failed to
314 # initialize MEMBER or the initialized the member is invalid.
315 # If POSTDEFAULT is non-empty then MEMBER will be updated to
316 # that value. If POSTDEFAULT is empty then internal_error()
319 # If INVALID_P is empty, a check that MEMBER is no longer
320 # equal to PREDEFAULT is used.
322 # The expression ``0'' disables the INVALID_P check making
323 # PREDEFAULT a legitimate value.
325 # See also PREDEFAULT and POSTDEFAULT.
329 # printf style format string that can be used to print out the
330 # MEMBER. Sometimes "%s" is useful. For functions, this is
331 # ignored and the function address is printed.
333 # If FMT is empty, ``%ld'' is used.
337 # An optional equation that casts MEMBER to a value suitable
338 # for formatting by FMT.
340 # If PRINT is empty, ``(long)'' is used.
344 # An optional indicator for any predicte to wrap around the
347 # () -> Call a custom function to do the dump.
348 # exp -> Wrap print up in ``if (${print_p}) ...
349 # ``'' -> No predicate
351 # If PRINT_P is empty, ``1'' is always used.
364 # See below (DOCO) for description of each field
366 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
368 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
369 # Number of bits in a char or unsigned char for the target machine.
370 # Just like CHAR_BIT in <limits.h> but describes the target machine.
371 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
373 # Number of bits in a short or unsigned short for the target machine.
374 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
375 # Number of bits in an int or unsigned int for the target machine.
376 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
377 # Number of bits in a long or unsigned long for the target machine.
378 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
379 # Number of bits in a long long or unsigned long long for the target
381 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
382 # Number of bits in a float for the target machine.
383 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
384 # Number of bits in a double for the target machine.
385 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
386 # Number of bits in a long double for the target machine.
387 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0
388 # For most targets, a pointer on the target and its representation as an
389 # address in GDB have the same size and "look the same". For such a
390 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
391 # / addr_bit will be set from it.
393 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
394 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
396 # ptr_bit is the size of a pointer on the target
397 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
398 # addr_bit is the size of a target address as represented in gdb
399 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
400 # Number of bits in a BFD_VMA for the target object file format.
401 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
403 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
404 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
406 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
407 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
408 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
409 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
410 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
411 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
412 # Function for getting target's idea of a frame pointer. FIXME: GDB's
413 # whole scheme for dealing with "frames" and "frame pointers" needs a
415 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
417 M:::void:register_read:int regnum, char *buf:regnum, buf:
418 M:::void:register_write:int regnum, char *buf:regnum, buf:
420 v:2:NUM_REGS:int:num_regs::::0:-1
421 # This macro gives the number of pseudo-registers that live in the
422 # register namespace but do not get fetched or stored on the target.
423 # These pseudo-registers may be aliases for other registers,
424 # combinations of other registers, or they may be computed by GDB.
425 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
426 v:2:SP_REGNUM:int:sp_regnum::::0:-1
427 v:2:FP_REGNUM:int:fp_regnum::::0:-1
428 v:2:PC_REGNUM:int:pc_regnum::::0:-1
429 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
430 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
431 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
432 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
433 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
434 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
435 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
436 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
437 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
438 # Convert from an sdb register number to an internal gdb register number.
439 # This should be defined in tm.h, if REGISTER_NAMES is not set up
440 # to map one to one onto the sdb register numbers.
441 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
442 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
443 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
444 v:2:REGISTER_SIZE:int:register_size::::0:-1
445 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
446 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
447 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_raw_size:0
448 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
449 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_virtual_size:0
450 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
451 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
452 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
453 f:2:PRINT_FLOAT_INFO:void:print_float_info:void::::default_print_float_info::0
454 # MAP a GDB RAW register number onto a simulator register number. See
455 # also include/...-sim.h.
456 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
457 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
458 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
459 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
461 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
462 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
463 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
464 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
465 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
466 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
467 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
468 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
469 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
470 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
471 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
472 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
473 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
474 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
475 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
476 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
478 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
479 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
480 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
481 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
483 f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
484 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
485 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
486 # This function is called when the value of a pseudo-register needs to
487 # be updated. Typically it will be defined on a per-architecture
489 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
490 # This function is called when the value of a pseudo-register needs to
491 # be set or stored. Typically it will be defined on a
492 # per-architecture basis.
493 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
495 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
496 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
497 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
499 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
500 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
501 f:1:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr::0:0
502 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
503 F:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
504 f:2:POP_FRAME:void:pop_frame:void:-:::0
506 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
507 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
508 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
509 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
511 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
512 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
514 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
515 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
516 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
517 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
518 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
519 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
520 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
521 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
522 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
524 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
526 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
527 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
528 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
529 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
530 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
531 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
532 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
533 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
534 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
536 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
537 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
538 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
539 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
540 v:2:PARM_BOUNDARY:int:parm_boundary
542 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
543 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
544 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
545 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
546 # On some machines there are bits in addresses which are not really
547 # part of the address, but are used by the kernel, the hardware, etc.
548 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
549 # we get a "real" address such as one would find in a symbol table.
550 # This is used only for addresses of instructions, and even then I'm
551 # not sure it's used in all contexts. It exists to deal with there
552 # being a few stray bits in the PC which would mislead us, not as some
553 # sort of generic thing to handle alignment or segmentation (it's
554 # possible it should be in TARGET_READ_PC instead).
555 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
556 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
558 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
559 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
560 # the target needs software single step. An ISA method to implement it.
562 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
563 # using the breakpoint system instead of blatting memory directly (as with rs6000).
565 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
566 # single step. If not, then implement single step using breakpoints.
567 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
568 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
569 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
570 # For SVR4 shared libraries, each call goes through a small piece of
571 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
572 # to nonzero if we are current stopped in one of these.
573 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
574 # A target might have problems with watchpoints as soon as the stack
575 # frame of the current function has been destroyed. This mostly happens
576 # as the first action in a funtion's epilogue. in_function_epilogue_p()
577 # is defined to return a non-zero value if either the given addr is one
578 # instruction after the stack destroying instruction up to the trailing
579 # return instruction or if we can figure out that the stack frame has
580 # already been invalidated regardless of the value of addr. Targets
581 # which don't suffer from that problem could just let this functionality
583 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
584 # Given a vector of command-line arguments, return a newly allocated
585 # string which, when passed to the create_inferior function, will be
586 # parsed (on Unix systems, by the shell) to yield the same vector.
587 # This function should call error() if the argument vector is not
588 # representable for this target or if this target does not support
589 # command-line arguments.
590 # ARGC is the number of elements in the vector.
591 # ARGV is an array of strings, one per argument.
592 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
593 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
594 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
595 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
602 exec > new-gdbarch.log
603 function_list |
while do_read
606 ${class} ${macro}(${actual})
607 ${returntype} ${function} ($formal)${attrib}
611 eval echo \"\ \ \ \
${r}=\
${${r}}\"
613 # #fallbackdefault=${fallbackdefault}
614 # #valid_p=${valid_p}
616 if class_is_predicate_p
&& fallback_default_p
618 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
622 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
624 echo "Error: postdefault is useless when invalid_p=0" 1>&2
628 if class_is_multiarch_p
630 if class_is_predicate_p
; then :
631 elif test "x${predefault}" = "x"
633 echo "Error: pure multi-arch function must have a predefault" 1>&2
642 compare_new gdbarch.log
648 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
650 /* Dynamic architecture support for GDB, the GNU debugger.
651 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
653 This file is part of GDB.
655 This program is free software; you can redistribute it and/or modify
656 it under the terms of the GNU General Public License as published by
657 the Free Software Foundation; either version 2 of the License, or
658 (at your option) any later version.
660 This program is distributed in the hope that it will be useful,
661 but WITHOUT ANY WARRANTY; without even the implied warranty of
662 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
663 GNU General Public License for more details.
665 You should have received a copy of the GNU General Public License
666 along with this program; if not, write to the Free Software
667 Foundation, Inc., 59 Temple Place - Suite 330,
668 Boston, MA 02111-1307, USA. */
670 /* This file was created with the aid of \`\`gdbarch.sh''.
672 The Bourne shell script \`\`gdbarch.sh'' creates the files
673 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
674 against the existing \`\`gdbarch.[hc]''. Any differences found
677 If editing this file, please also run gdbarch.sh and merge any
678 changes into that script. Conversely, when making sweeping changes
679 to this file, modifying gdbarch.sh and using its output may prove
695 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
697 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
703 struct minimal_symbol;
705 extern struct gdbarch *current_gdbarch;
708 /* If any of the following are defined, the target wasn't correctly
712 #if defined (EXTRA_FRAME_INFO)
713 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
718 #if defined (FRAME_FIND_SAVED_REGS)
719 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
723 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
724 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
731 printf "/* The following are pre-initialized by GDBARCH. */\n"
732 function_list |
while do_read
737 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
738 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
739 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
740 printf "#error \"Non multi-arch definition of ${macro}\"\n"
742 printf "#if GDB_MULTI_ARCH\n"
743 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
744 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
753 printf "/* The following are initialized by the target dependent code. */\n"
754 function_list |
while do_read
756 if [ -n "${comment}" ]
758 echo "${comment}" |
sed \
763 if class_is_multiarch_p
765 if class_is_predicate_p
768 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
771 if class_is_predicate_p
774 printf "#if defined (${macro})\n"
775 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
776 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
777 printf "#if !defined (${macro}_P)\n"
778 printf "#define ${macro}_P() (1)\n"
782 printf "/* Default predicate for non- multi-arch targets. */\n"
783 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
784 printf "#define ${macro}_P() (0)\n"
787 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
788 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro}_P)\n"
789 printf "#error \"Non multi-arch definition of ${macro}\"\n"
791 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
792 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
796 if class_is_variable_p
798 if fallback_default_p || class_is_predicate_p
801 printf "/* Default (value) for non- multi-arch platforms. */\n"
802 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
803 echo "#define ${macro} (${fallbackdefault})" \
804 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
808 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
809 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
810 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
811 printf "#error \"Non multi-arch definition of ${macro}\"\n"
813 printf "#if GDB_MULTI_ARCH\n"
814 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
815 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
819 if class_is_function_p
821 if class_is_multiarch_p
; then :
822 elif fallback_default_p || class_is_predicate_p
825 printf "/* Default (function) for non- multi-arch platforms. */\n"
826 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
827 if [ "x${fallbackdefault}" = "x0" ]
829 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
831 # FIXME: Should be passing current_gdbarch through!
832 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
833 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
838 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
840 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
841 elif class_is_multiarch_p
843 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
845 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
847 if [ "x${formal}" = "xvoid" ]
849 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
851 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
853 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
854 if class_is_multiarch_p
; then :
856 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
857 printf "#error \"Non multi-arch definition of ${macro}\"\n"
859 printf "#if GDB_MULTI_ARCH\n"
860 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
861 if [ "x${actual}" = "x" ]
863 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
864 elif [ "x${actual}" = "x-" ]
866 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
868 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
879 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
882 /* Mechanism for co-ordinating the selection of a specific
885 GDB targets (*-tdep.c) can register an interest in a specific
886 architecture. Other GDB components can register a need to maintain
887 per-architecture data.
889 The mechanisms below ensures that there is only a loose connection
890 between the set-architecture command and the various GDB
891 components. Each component can independently register their need
892 to maintain architecture specific data with gdbarch.
896 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
899 The more traditional mega-struct containing architecture specific
900 data for all the various GDB components was also considered. Since
901 GDB is built from a variable number of (fairly independent)
902 components it was determined that the global aproach was not
906 /* Register a new architectural family with GDB.
908 Register support for the specified ARCHITECTURE with GDB. When
909 gdbarch determines that the specified architecture has been
910 selected, the corresponding INIT function is called.
914 The INIT function takes two parameters: INFO which contains the
915 information available to gdbarch about the (possibly new)
916 architecture; ARCHES which is a list of the previously created
917 \`\`struct gdbarch'' for this architecture.
919 The INIT function parameter INFO shall, as far as possible, be
920 pre-initialized with information obtained from INFO.ABFD or
921 previously selected architecture (if similar).
923 The INIT function shall return any of: NULL - indicating that it
924 doesn't recognize the selected architecture; an existing \`\`struct
925 gdbarch'' from the ARCHES list - indicating that the new
926 architecture is just a synonym for an earlier architecture (see
927 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
928 - that describes the selected architecture (see gdbarch_alloc()).
930 The DUMP_TDEP function shall print out all target specific values.
931 Care should be taken to ensure that the function works in both the
932 multi-arch and non- multi-arch cases. */
936 struct gdbarch *gdbarch;
937 struct gdbarch_list *next;
942 /* Use default: NULL (ZERO). */
943 const struct bfd_arch_info *bfd_arch_info;
945 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
948 /* Use default: NULL (ZERO). */
951 /* Use default: NULL (ZERO). */
952 struct gdbarch_tdep_info *tdep_info;
955 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
956 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
958 /* DEPRECATED - use gdbarch_register() */
959 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
961 extern void gdbarch_register (enum bfd_architecture architecture,
962 gdbarch_init_ftype *,
963 gdbarch_dump_tdep_ftype *);
966 /* Return a freshly allocated, NULL terminated, array of the valid
967 architecture names. Since architectures are registered during the
968 _initialize phase this function only returns useful information
969 once initialization has been completed. */
971 extern const char **gdbarch_printable_names (void);
974 /* Helper function. Search the list of ARCHES for a GDBARCH that
975 matches the information provided by INFO. */
977 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
980 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
981 basic initialization using values obtained from the INFO andTDEP
982 parameters. set_gdbarch_*() functions are called to complete the
983 initialization of the object. */
985 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
988 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
989 It is assumed that the caller freeds the \`\`struct
992 extern void gdbarch_free (struct gdbarch *);
995 /* Helper function. Force an update of the current architecture.
997 The actual architecture selected is determined by INFO, \`\`(gdb) set
998 architecture'' et.al., the existing architecture and BFD's default
999 architecture. INFO should be initialized to zero and then selected
1000 fields should be updated.
1002 Returns non-zero if the update succeeds */
1004 extern int gdbarch_update_p (struct gdbarch_info info);
1008 /* Register per-architecture data-pointer.
1010 Reserve space for a per-architecture data-pointer. An identifier
1011 for the reserved data-pointer is returned. That identifer should
1012 be saved in a local static variable.
1014 The per-architecture data-pointer can be initialized in one of two
1015 ways: The value can be set explicitly using a call to
1016 set_gdbarch_data(); the value can be set implicitly using the value
1017 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
1018 called after the basic architecture vector has been created.
1020 When a previously created architecture is re-selected, the
1021 per-architecture data-pointer for that previous architecture is
1022 restored. INIT() is not called.
1024 During initialization, multiple assignments of the data-pointer are
1025 allowed, non-NULL values are deleted by calling FREE(). If the
1026 architecture is deleted using gdbarch_free() all non-NULL data
1027 pointers are also deleted using FREE().
1029 Multiple registrarants for any architecture are allowed (and
1030 strongly encouraged). */
1032 struct gdbarch_data;
1034 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1035 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1037 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1038 gdbarch_data_free_ftype *free);
1039 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1040 struct gdbarch_data *data,
1043 extern void *gdbarch_data (struct gdbarch_data*);
1046 /* Register per-architecture memory region.
1048 Provide a memory-region swap mechanism. Per-architecture memory
1049 region are created. These memory regions are swapped whenever the
1050 architecture is changed. For a new architecture, the memory region
1051 is initialized with zero (0) and the INIT function is called.
1053 Memory regions are swapped / initialized in the order that they are
1054 registered. NULL DATA and/or INIT values can be specified.
1056 New code should use register_gdbarch_data(). */
1058 typedef void (gdbarch_swap_ftype) (void);
1059 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1060 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1064 /* The target-system-dependent byte order is dynamic */
1066 extern int target_byte_order;
1067 #ifndef TARGET_BYTE_ORDER
1068 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1071 extern int target_byte_order_auto;
1072 #ifndef TARGET_BYTE_ORDER_AUTO
1073 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1078 /* The target-system-dependent BFD architecture is dynamic */
1080 extern int target_architecture_auto;
1081 #ifndef TARGET_ARCHITECTURE_AUTO
1082 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1085 extern const struct bfd_arch_info *target_architecture;
1086 #ifndef TARGET_ARCHITECTURE
1087 #define TARGET_ARCHITECTURE (target_architecture + 0)
1091 /* The target-system-dependent disassembler is semi-dynamic */
1093 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1094 unsigned int len, disassemble_info *info);
1096 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1097 disassemble_info *info);
1099 extern void dis_asm_print_address (bfd_vma addr,
1100 disassemble_info *info);
1102 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1103 extern disassemble_info tm_print_insn_info;
1104 #ifndef TARGET_PRINT_INSN_INFO
1105 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1110 /* Set the dynamic target-system-dependent parameters (architecture,
1111 byte-order, ...) using information found in the BFD */
1113 extern void set_gdbarch_from_file (bfd *);
1116 /* Initialize the current architecture to the "first" one we find on
1119 extern void initialize_current_architecture (void);
1121 /* For non-multiarched targets, do any initialization of the default
1122 gdbarch object necessary after the _initialize_MODULE functions
1124 extern void initialize_non_multiarch ();
1126 /* gdbarch trace variable */
1127 extern int gdbarch_debug;
1129 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1134 #../move-if-change new-gdbarch.h gdbarch.h
1135 compare_new gdbarch.h
1142 exec > new-gdbarch.c
1147 #include "arch-utils.h"
1151 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1153 /* Just include everything in sight so that the every old definition
1154 of macro is visible. */
1155 #include "gdb_string.h"
1159 #include "inferior.h"
1160 #include "breakpoint.h"
1161 #include "gdb_wait.h"
1162 #include "gdbcore.h"
1165 #include "gdbthread.h"
1166 #include "annotate.h"
1167 #include "symfile.h" /* for overlay functions */
1168 #include "value.h" /* For old tm.h/nm.h macros. */
1172 #include "floatformat.h"
1174 #include "gdb_assert.h"
1175 #include "gdb-events.h"
1177 /* Static function declarations */
1179 static void verify_gdbarch (struct gdbarch *gdbarch);
1180 static void alloc_gdbarch_data (struct gdbarch *);
1181 static void init_gdbarch_data (struct gdbarch *);
1182 static void free_gdbarch_data (struct gdbarch *);
1183 static void init_gdbarch_swap (struct gdbarch *);
1184 static void swapout_gdbarch_swap (struct gdbarch *);
1185 static void swapin_gdbarch_swap (struct gdbarch *);
1187 /* Convenience macro for allocting typesafe memory. */
1190 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1194 /* Non-zero if we want to trace architecture code. */
1196 #ifndef GDBARCH_DEBUG
1197 #define GDBARCH_DEBUG 0
1199 int gdbarch_debug = GDBARCH_DEBUG;
1203 # gdbarch open the gdbarch object
1205 printf "/* Maintain the struct gdbarch object */\n"
1207 printf "struct gdbarch\n"
1209 printf " /* basic architectural information */\n"
1210 function_list |
while do_read
1214 printf " ${returntype} ${function};\n"
1218 printf " /* target specific vector. */\n"
1219 printf " struct gdbarch_tdep *tdep;\n"
1220 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1222 printf " /* per-architecture data-pointers */\n"
1223 printf " unsigned nr_data;\n"
1224 printf " void **data;\n"
1226 printf " /* per-architecture swap-regions */\n"
1227 printf " struct gdbarch_swap *swap;\n"
1230 /* Multi-arch values.
1232 When extending this structure you must:
1234 Add the field below.
1236 Declare set/get functions and define the corresponding
1239 gdbarch_alloc(): If zero/NULL is not a suitable default,
1240 initialize the new field.
1242 verify_gdbarch(): Confirm that the target updated the field
1245 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1248 \`\`startup_gdbarch()'': Append an initial value to the static
1249 variable (base values on the host's c-type system).
1251 get_gdbarch(): Implement the set/get functions (probably using
1252 the macro's as shortcuts).
1257 function_list |
while do_read
1259 if class_is_variable_p
1261 printf " ${returntype} ${function};\n"
1262 elif class_is_function_p
1264 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1269 # A pre-initialized vector
1273 /* The default architecture uses host values (for want of a better
1277 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1279 printf "struct gdbarch startup_gdbarch =\n"
1281 printf " /* basic architecture information */\n"
1282 function_list |
while do_read
1286 printf " ${staticdefault},\n"
1290 /* target specific vector and its dump routine */
1292 /*per-architecture data-pointers and swap regions */
1294 /* Multi-arch values */
1296 function_list |
while do_read
1298 if class_is_function_p || class_is_variable_p
1300 printf " ${staticdefault},\n"
1304 /* startup_gdbarch() */
1307 struct gdbarch *current_gdbarch = &startup_gdbarch;
1309 /* Do any initialization needed for a non-multiarch configuration
1310 after the _initialize_MODULE functions have been run. */
1312 initialize_non_multiarch ()
1314 alloc_gdbarch_data (&startup_gdbarch);
1315 init_gdbarch_data (&startup_gdbarch);
1319 # Create a new gdbarch struct
1323 /* Create a new \`\`struct gdbarch'' based on information provided by
1324 \`\`struct gdbarch_info''. */
1329 gdbarch_alloc (const struct gdbarch_info *info,
1330 struct gdbarch_tdep *tdep)
1332 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1333 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1334 the current local architecture and not the previous global
1335 architecture. This ensures that the new architectures initial
1336 values are not influenced by the previous architecture. Once
1337 everything is parameterised with gdbarch, this will go away. */
1338 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1339 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1341 alloc_gdbarch_data (current_gdbarch);
1343 current_gdbarch->tdep = tdep;
1346 function_list |
while do_read
1350 printf " current_gdbarch->${function} = info->${function};\n"
1354 printf " /* Force the explicit initialization of these. */\n"
1355 function_list |
while do_read
1357 if class_is_function_p || class_is_variable_p
1359 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1361 printf " current_gdbarch->${function} = ${predefault};\n"
1366 /* gdbarch_alloc() */
1368 return current_gdbarch;
1372 # Free a gdbarch struct.
1376 /* Free a gdbarch struct. This should never happen in normal
1377 operation --- once you've created a gdbarch, you keep it around.
1378 However, if an architecture's init function encounters an error
1379 building the structure, it may need to clean up a partially
1380 constructed gdbarch. */
1383 gdbarch_free (struct gdbarch *arch)
1385 gdb_assert (arch != NULL);
1386 free_gdbarch_data (arch);
1391 # verify a new architecture
1394 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1398 verify_gdbarch (struct gdbarch *gdbarch)
1400 struct ui_file *log;
1401 struct cleanup *cleanups;
1404 /* Only perform sanity checks on a multi-arch target. */
1405 if (!GDB_MULTI_ARCH)
1407 log = mem_fileopen ();
1408 cleanups = make_cleanup_ui_file_delete (log);
1410 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1411 fprintf_unfiltered (log, "\n\tbyte-order");
1412 if (gdbarch->bfd_arch_info == NULL)
1413 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1414 /* Check those that need to be defined for the given multi-arch level. */
1416 function_list |
while do_read
1418 if class_is_function_p || class_is_variable_p
1420 if [ "x${invalid_p}" = "x0" ]
1422 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1423 elif class_is_predicate_p
1425 printf " /* Skip verify of ${function}, has predicate */\n"
1426 # FIXME: See do_read for potential simplification
1427 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1429 printf " if (${invalid_p})\n"
1430 printf " gdbarch->${function} = ${postdefault};\n"
1431 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1433 printf " if (gdbarch->${function} == ${predefault})\n"
1434 printf " gdbarch->${function} = ${postdefault};\n"
1435 elif [ -n "${postdefault}" ]
1437 printf " if (gdbarch->${function} == 0)\n"
1438 printf " gdbarch->${function} = ${postdefault};\n"
1439 elif [ -n "${invalid_p}" ]
1441 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1442 printf " && (${invalid_p}))\n"
1443 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1444 elif [ -n "${predefault}" ]
1446 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1447 printf " && (gdbarch->${function} == ${predefault}))\n"
1448 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1453 buf = ui_file_xstrdup (log, &dummy);
1454 make_cleanup (xfree, buf);
1455 if (strlen (buf) > 0)
1456 internal_error (__FILE__, __LINE__,
1457 "verify_gdbarch: the following are invalid ...%s",
1459 do_cleanups (cleanups);
1463 # dump the structure
1467 /* Print out the details of the current architecture. */
1469 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1470 just happens to match the global variable \`\`current_gdbarch''. That
1471 way macros refering to that variable get the local and not the global
1472 version - ulgh. Once everything is parameterised with gdbarch, this
1476 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1478 fprintf_unfiltered (file,
1479 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1482 function_list |
sort -t: +2 |
while do_read
1484 # multiarch functions don't have macros.
1485 if class_is_multiarch_p
1487 printf " if (GDB_MULTI_ARCH)\n"
1488 printf " fprintf_unfiltered (file,\n"
1489 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1490 printf " (long) current_gdbarch->${function});\n"
1493 # Print the macro definition.
1494 printf "#ifdef ${macro}\n"
1495 if [ "x${returntype}" = "xvoid" ]
1497 printf "#if GDB_MULTI_ARCH\n"
1498 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1500 if class_is_function_p
1502 printf " fprintf_unfiltered (file,\n"
1503 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1504 printf " \"${macro}(${actual})\",\n"
1505 printf " XSTRING (${macro} (${actual})));\n"
1507 printf " fprintf_unfiltered (file,\n"
1508 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1509 printf " XSTRING (${macro}));\n"
1511 # Print the architecture vector value
1512 if [ "x${returntype}" = "xvoid" ]
1516 if [ "x${print_p}" = "x()" ]
1518 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1519 elif [ "x${print_p}" = "x0" ]
1521 printf " /* skip print of ${macro}, print_p == 0. */\n"
1522 elif [ -n "${print_p}" ]
1524 printf " if (${print_p})\n"
1525 printf " fprintf_unfiltered (file,\n"
1526 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1527 printf " ${print});\n"
1528 elif class_is_function_p
1530 printf " if (GDB_MULTI_ARCH)\n"
1531 printf " fprintf_unfiltered (file,\n"
1532 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1533 printf " (long) current_gdbarch->${function}\n"
1534 printf " /*${macro} ()*/);\n"
1536 printf " fprintf_unfiltered (file,\n"
1537 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1538 printf " ${print});\n"
1543 if (current_gdbarch->dump_tdep != NULL)
1544 current_gdbarch->dump_tdep (current_gdbarch, file);
1552 struct gdbarch_tdep *
1553 gdbarch_tdep (struct gdbarch *gdbarch)
1555 if (gdbarch_debug >= 2)
1556 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1557 return gdbarch->tdep;
1561 function_list |
while do_read
1563 if class_is_predicate_p
1567 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1569 if [ -n "${valid_p}" ]
1571 printf " return ${valid_p};\n"
1573 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1577 if class_is_function_p
1580 printf "${returntype}\n"
1581 if [ "x${formal}" = "xvoid" ]
1583 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1585 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1588 printf " if (gdbarch->${function} == 0)\n"
1589 printf " internal_error (__FILE__, __LINE__,\n"
1590 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1591 printf " if (gdbarch_debug >= 2)\n"
1592 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1593 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1595 if class_is_multiarch_p
1602 if class_is_multiarch_p
1604 params
="gdbarch, ${actual}"
1609 if [ "x${returntype}" = "xvoid" ]
1611 printf " gdbarch->${function} (${params});\n"
1613 printf " return gdbarch->${function} (${params});\n"
1618 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1619 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1621 printf " gdbarch->${function} = ${function};\n"
1623 elif class_is_variable_p
1626 printf "${returntype}\n"
1627 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1629 if [ "x${invalid_p}" = "x0" ]
1631 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1632 elif [ -n "${invalid_p}" ]
1634 printf " if (${invalid_p})\n"
1635 printf " internal_error (__FILE__, __LINE__,\n"
1636 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1637 elif [ -n "${predefault}" ]
1639 printf " if (gdbarch->${function} == ${predefault})\n"
1640 printf " internal_error (__FILE__, __LINE__,\n"
1641 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1643 printf " if (gdbarch_debug >= 2)\n"
1644 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1645 printf " return gdbarch->${function};\n"
1649 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1650 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1652 printf " gdbarch->${function} = ${function};\n"
1654 elif class_is_info_p
1657 printf "${returntype}\n"
1658 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1660 printf " if (gdbarch_debug >= 2)\n"
1661 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1662 printf " return gdbarch->${function};\n"
1667 # All the trailing guff
1671 /* Keep a registry of per-architecture data-pointers required by GDB
1677 gdbarch_data_init_ftype *init;
1678 gdbarch_data_free_ftype *free;
1681 struct gdbarch_data_registration
1683 struct gdbarch_data *data;
1684 struct gdbarch_data_registration *next;
1687 struct gdbarch_data_registry
1690 struct gdbarch_data_registration *registrations;
1693 struct gdbarch_data_registry gdbarch_data_registry =
1698 struct gdbarch_data *
1699 register_gdbarch_data (gdbarch_data_init_ftype *init,
1700 gdbarch_data_free_ftype *free)
1702 struct gdbarch_data_registration **curr;
1703 for (curr = &gdbarch_data_registry.registrations;
1705 curr = &(*curr)->next);
1706 (*curr) = XMALLOC (struct gdbarch_data_registration);
1707 (*curr)->next = NULL;
1708 (*curr)->data = XMALLOC (struct gdbarch_data);
1709 (*curr)->data->index = gdbarch_data_registry.nr++;
1710 (*curr)->data->init = init;
1711 (*curr)->data->free = free;
1712 return (*curr)->data;
1716 /* Walk through all the registered users initializing each in turn. */
1719 init_gdbarch_data (struct gdbarch *gdbarch)
1721 struct gdbarch_data_registration *rego;
1722 for (rego = gdbarch_data_registry.registrations;
1726 struct gdbarch_data *data = rego->data;
1727 gdb_assert (data->index < gdbarch->nr_data);
1728 if (data->init != NULL)
1730 void *pointer = data->init (gdbarch);
1731 set_gdbarch_data (gdbarch, data, pointer);
1736 /* Create/delete the gdbarch data vector. */
1739 alloc_gdbarch_data (struct gdbarch *gdbarch)
1741 gdb_assert (gdbarch->data == NULL);
1742 gdbarch->nr_data = gdbarch_data_registry.nr;
1743 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1747 free_gdbarch_data (struct gdbarch *gdbarch)
1749 struct gdbarch_data_registration *rego;
1750 gdb_assert (gdbarch->data != NULL);
1751 for (rego = gdbarch_data_registry.registrations;
1755 struct gdbarch_data *data = rego->data;
1756 gdb_assert (data->index < gdbarch->nr_data);
1757 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1759 data->free (gdbarch, gdbarch->data[data->index]);
1760 gdbarch->data[data->index] = NULL;
1763 xfree (gdbarch->data);
1764 gdbarch->data = NULL;
1768 /* Initialize the current value of thee specified per-architecture
1772 set_gdbarch_data (struct gdbarch *gdbarch,
1773 struct gdbarch_data *data,
1776 gdb_assert (data->index < gdbarch->nr_data);
1777 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1778 data->free (gdbarch, gdbarch->data[data->index]);
1779 gdbarch->data[data->index] = pointer;
1782 /* Return the current value of the specified per-architecture
1786 gdbarch_data (struct gdbarch_data *data)
1788 gdb_assert (data->index < current_gdbarch->nr_data);
1789 return current_gdbarch->data[data->index];
1794 /* Keep a registry of swapped data required by GDB modules. */
1799 struct gdbarch_swap_registration *source;
1800 struct gdbarch_swap *next;
1803 struct gdbarch_swap_registration
1806 unsigned long sizeof_data;
1807 gdbarch_swap_ftype *init;
1808 struct gdbarch_swap_registration *next;
1811 struct gdbarch_swap_registry
1814 struct gdbarch_swap_registration *registrations;
1817 struct gdbarch_swap_registry gdbarch_swap_registry =
1823 register_gdbarch_swap (void *data,
1824 unsigned long sizeof_data,
1825 gdbarch_swap_ftype *init)
1827 struct gdbarch_swap_registration **rego;
1828 for (rego = &gdbarch_swap_registry.registrations;
1830 rego = &(*rego)->next);
1831 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1832 (*rego)->next = NULL;
1833 (*rego)->init = init;
1834 (*rego)->data = data;
1835 (*rego)->sizeof_data = sizeof_data;
1840 init_gdbarch_swap (struct gdbarch *gdbarch)
1842 struct gdbarch_swap_registration *rego;
1843 struct gdbarch_swap **curr = &gdbarch->swap;
1844 for (rego = gdbarch_swap_registry.registrations;
1848 if (rego->data != NULL)
1850 (*curr) = XMALLOC (struct gdbarch_swap);
1851 (*curr)->source = rego;
1852 (*curr)->swap = xmalloc (rego->sizeof_data);
1853 (*curr)->next = NULL;
1854 memset (rego->data, 0, rego->sizeof_data);
1855 curr = &(*curr)->next;
1857 if (rego->init != NULL)
1863 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1865 struct gdbarch_swap *curr;
1866 for (curr = gdbarch->swap;
1869 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1873 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1875 struct gdbarch_swap *curr;
1876 for (curr = gdbarch->swap;
1879 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1883 /* Keep a registry of the architectures known by GDB. */
1885 struct gdbarch_registration
1887 enum bfd_architecture bfd_architecture;
1888 gdbarch_init_ftype *init;
1889 gdbarch_dump_tdep_ftype *dump_tdep;
1890 struct gdbarch_list *arches;
1891 struct gdbarch_registration *next;
1894 static struct gdbarch_registration *gdbarch_registry = NULL;
1897 append_name (const char ***buf, int *nr, const char *name)
1899 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1905 gdbarch_printable_names (void)
1909 /* Accumulate a list of names based on the registed list of
1911 enum bfd_architecture a;
1913 const char **arches = NULL;
1914 struct gdbarch_registration *rego;
1915 for (rego = gdbarch_registry;
1919 const struct bfd_arch_info *ap;
1920 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1922 internal_error (__FILE__, __LINE__,
1923 "gdbarch_architecture_names: multi-arch unknown");
1926 append_name (&arches, &nr_arches, ap->printable_name);
1931 append_name (&arches, &nr_arches, NULL);
1935 /* Just return all the architectures that BFD knows. Assume that
1936 the legacy architecture framework supports them. */
1937 return bfd_arch_list ();
1942 gdbarch_register (enum bfd_architecture bfd_architecture,
1943 gdbarch_init_ftype *init,
1944 gdbarch_dump_tdep_ftype *dump_tdep)
1946 struct gdbarch_registration **curr;
1947 const struct bfd_arch_info *bfd_arch_info;
1948 /* Check that BFD recognizes this architecture */
1949 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1950 if (bfd_arch_info == NULL)
1952 internal_error (__FILE__, __LINE__,
1953 "gdbarch: Attempt to register unknown architecture (%d)",
1956 /* Check that we haven't seen this architecture before */
1957 for (curr = &gdbarch_registry;
1959 curr = &(*curr)->next)
1961 if (bfd_architecture == (*curr)->bfd_architecture)
1962 internal_error (__FILE__, __LINE__,
1963 "gdbarch: Duplicate registraration of architecture (%s)",
1964 bfd_arch_info->printable_name);
1968 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1969 bfd_arch_info->printable_name,
1972 (*curr) = XMALLOC (struct gdbarch_registration);
1973 (*curr)->bfd_architecture = bfd_architecture;
1974 (*curr)->init = init;
1975 (*curr)->dump_tdep = dump_tdep;
1976 (*curr)->arches = NULL;
1977 (*curr)->next = NULL;
1978 /* When non- multi-arch, install whatever target dump routine we've
1979 been provided - hopefully that routine has been written correctly
1980 and works regardless of multi-arch. */
1981 if (!GDB_MULTI_ARCH && dump_tdep != NULL
1982 && startup_gdbarch.dump_tdep == NULL)
1983 startup_gdbarch.dump_tdep = dump_tdep;
1987 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1988 gdbarch_init_ftype *init)
1990 gdbarch_register (bfd_architecture, init, NULL);
1994 /* Look for an architecture using gdbarch_info. Base search on only
1995 BFD_ARCH_INFO and BYTE_ORDER. */
1997 struct gdbarch_list *
1998 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1999 const struct gdbarch_info *info)
2001 for (; arches != NULL; arches = arches->next)
2003 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2005 if (info->byte_order != arches->gdbarch->byte_order)
2013 /* Update the current architecture. Return ZERO if the update request
2017 gdbarch_update_p (struct gdbarch_info info)
2019 struct gdbarch *new_gdbarch;
2020 struct gdbarch_list **list;
2021 struct gdbarch_registration *rego;
2023 /* Fill in missing parts of the INFO struct using a number of
2024 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2026 /* \`\`(gdb) set architecture ...'' */
2027 if (info.bfd_arch_info == NULL
2028 && !TARGET_ARCHITECTURE_AUTO)
2029 info.bfd_arch_info = TARGET_ARCHITECTURE;
2030 if (info.bfd_arch_info == NULL
2031 && info.abfd != NULL
2032 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2033 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2034 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2035 if (info.bfd_arch_info == NULL)
2036 info.bfd_arch_info = TARGET_ARCHITECTURE;
2038 /* \`\`(gdb) set byte-order ...'' */
2039 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2040 && !TARGET_BYTE_ORDER_AUTO)
2041 info.byte_order = TARGET_BYTE_ORDER;
2042 /* From the INFO struct. */
2043 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2044 && info.abfd != NULL)
2045 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2046 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2047 : BFD_ENDIAN_UNKNOWN);
2048 /* From the current target. */
2049 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2050 info.byte_order = TARGET_BYTE_ORDER;
2052 /* Must have found some sort of architecture. */
2053 gdb_assert (info.bfd_arch_info != NULL);
2057 fprintf_unfiltered (gdb_stdlog,
2058 "gdbarch_update: info.bfd_arch_info %s\n",
2059 (info.bfd_arch_info != NULL
2060 ? info.bfd_arch_info->printable_name
2062 fprintf_unfiltered (gdb_stdlog,
2063 "gdbarch_update: info.byte_order %d (%s)\n",
2065 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2066 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2068 fprintf_unfiltered (gdb_stdlog,
2069 "gdbarch_update: info.abfd 0x%lx\n",
2071 fprintf_unfiltered (gdb_stdlog,
2072 "gdbarch_update: info.tdep_info 0x%lx\n",
2073 (long) info.tdep_info);
2076 /* Find the target that knows about this architecture. */
2077 for (rego = gdbarch_registry;
2080 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2085 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2089 /* Ask the target for a replacement architecture. */
2090 new_gdbarch = rego->init (info, rego->arches);
2092 /* Did the target like it? No. Reject the change. */
2093 if (new_gdbarch == NULL)
2096 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2100 /* Did the architecture change? No. Do nothing. */
2101 if (current_gdbarch == new_gdbarch)
2104 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2106 new_gdbarch->bfd_arch_info->printable_name);
2110 /* Swap all data belonging to the old target out */
2111 swapout_gdbarch_swap (current_gdbarch);
2113 /* Is this a pre-existing architecture? Yes. Swap it in. */
2114 for (list = ®o->arches;
2116 list = &(*list)->next)
2118 if ((*list)->gdbarch == new_gdbarch)
2121 fprintf_unfiltered (gdb_stdlog,
2122 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2124 new_gdbarch->bfd_arch_info->printable_name);
2125 current_gdbarch = new_gdbarch;
2126 swapin_gdbarch_swap (new_gdbarch);
2127 architecture_changed_event ();
2132 /* Append this new architecture to this targets list. */
2133 (*list) = XMALLOC (struct gdbarch_list);
2134 (*list)->next = NULL;
2135 (*list)->gdbarch = new_gdbarch;
2137 /* Switch to this new architecture. Dump it out. */
2138 current_gdbarch = new_gdbarch;
2141 fprintf_unfiltered (gdb_stdlog,
2142 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2144 new_gdbarch->bfd_arch_info->printable_name);
2147 /* Check that the newly installed architecture is valid. Plug in
2148 any post init values. */
2149 new_gdbarch->dump_tdep = rego->dump_tdep;
2150 verify_gdbarch (new_gdbarch);
2152 /* Initialize the per-architecture memory (swap) areas.
2153 CURRENT_GDBARCH must be update before these modules are
2155 init_gdbarch_swap (new_gdbarch);
2157 /* Initialize the per-architecture data-pointer of all parties that
2158 registered an interest in this architecture. CURRENT_GDBARCH
2159 must be updated before these modules are called. */
2160 init_gdbarch_data (new_gdbarch);
2161 architecture_changed_event ();
2164 gdbarch_dump (current_gdbarch, gdb_stdlog);
2172 /* Pointer to the target-dependent disassembly function. */
2173 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2174 disassemble_info tm_print_insn_info;
2177 extern void _initialize_gdbarch (void);
2180 _initialize_gdbarch (void)
2182 struct cmd_list_element *c;
2184 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2185 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2186 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2187 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2188 tm_print_insn_info.print_address_func = dis_asm_print_address;
2190 add_show_from_set (add_set_cmd ("arch",
2193 (char *)&gdbarch_debug,
2194 "Set architecture debugging.\\n\\
2195 When non-zero, architecture debugging is enabled.", &setdebuglist),
2197 c = add_set_cmd ("archdebug",
2200 (char *)&gdbarch_debug,
2201 "Set architecture debugging.\\n\\
2202 When non-zero, architecture debugging is enabled.", &setlist);
2204 deprecate_cmd (c, "set debug arch");
2205 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2211 #../move-if-change new-gdbarch.c gdbarch.c
2212 compare_new gdbarch.c