3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
6 # This file is part of GDB.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 echo "${file} missing? cp new-${file} ${file}" 1>&2
28 elif diff -c ${file} new-
${file}
30 echo "${file} unchanged" 1>&2
32 echo "${file} has changed? cp new-${file} ${file}" 1>&2
37 # Format of the input table
38 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
46 if test "${line}" = ""
49 elif test "${line}" = "#" -a "${comment}" = ""
52 elif expr "${line}" : "#" > /dev
/null
58 # The semantics of IFS varies between different SH's. Some
59 # treat ``::' as three fields while some treat it as just too.
60 # Work around this by eliminating ``::'' ....
61 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
63 OFS
="${IFS}" ; IFS
="[:]"
64 eval read ${read} <<EOF
69 # .... and then going back through each field and strip out those
70 # that ended up with just that space character.
73 if eval test \"\
${${r}}\" = \"\
\"
80 m
) staticdefault
="${predefault}" ;;
81 M
) staticdefault
="0" ;;
82 * ) test "${staticdefault}" || staticdefault
=0 ;;
84 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
85 # multi-arch defaults.
86 # test "${predefault}" || predefault=0
87 test "${fmt}" ||
fmt="%ld"
88 test "${print}" || print
="(long) ${macro}"
89 case "${invalid_p}" in
92 if [ -n "${predefault}" ]
94 #invalid_p="gdbarch->${function} == ${predefault}"
95 valid_p
="gdbarch->${function} != ${predefault}"
97 #invalid_p="gdbarch->${function} == 0"
98 valid_p
="gdbarch->${function} != 0"
101 * ) valid_p
="!(${invalid_p})"
104 # PREDEFAULT is a valid fallback definition of MEMBER when
105 # multi-arch is not enabled. This ensures that the
106 # default value, when multi-arch is the same as the
107 # default value when not multi-arch. POSTDEFAULT is
108 # always a valid definition of MEMBER as this again
109 # ensures consistency.
111 if [ -n "${postdefault}" ]
113 fallbackdefault
="${postdefault}"
114 elif [ -n "${predefault}" ]
116 fallbackdefault
="${predefault}"
121 #NOT YET: See gdbarch.log for basic verification of
136 fallback_default_p
()
138 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
139 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
142 class_is_variable_p
()
150 class_is_function_p
()
153 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
158 class_is_multiarch_p
()
166 class_is_predicate_p
()
169 *F
* |
*V
* |
*M
* ) true
;;
183 # dump out/verify the doco
193 # F -> function + predicate
194 # hiding a function + predicate to test function validity
197 # V -> variable + predicate
198 # hiding a variable + predicate to test variables validity
200 # hiding something from the ``struct info'' object
201 # m -> multi-arch function
202 # hiding a multi-arch function (parameterised with the architecture)
203 # M -> multi-arch function + predicate
204 # hiding a multi-arch function + predicate to test function validity
208 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
209 # LEVEL is a predicate on checking that a given method is
210 # initialized (using INVALID_P).
214 # The name of the MACRO that this method is to be accessed by.
218 # For functions, the return type; for variables, the data type
222 # For functions, the member function name; for variables, the
223 # variable name. Member function names are always prefixed with
224 # ``gdbarch_'' for name-space purity.
228 # The formal argument list. It is assumed that the formal
229 # argument list includes the actual name of each list element.
230 # A function with no arguments shall have ``void'' as the
231 # formal argument list.
235 # The list of actual arguments. The arguments specified shall
236 # match the FORMAL list given above. Functions with out
237 # arguments leave this blank.
241 # Any GCC attributes that should be attached to the function
242 # declaration. At present this field is unused.
246 # To help with the GDB startup a static gdbarch object is
247 # created. STATICDEFAULT is the value to insert into that
248 # static gdbarch object. Since this a static object only
249 # simple expressions can be used.
251 # If STATICDEFAULT is empty, zero is used.
255 # An initial value to assign to MEMBER of the freshly
256 # malloc()ed gdbarch object. After initialization, the
257 # freshly malloc()ed object is passed to the target
258 # architecture code for further updates.
260 # If PREDEFAULT is empty, zero is used.
262 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
263 # INVALID_P are specified, PREDEFAULT will be used as the
264 # default for the non- multi-arch target.
266 # A zero PREDEFAULT function will force the fallback to call
269 # Variable declarations can refer to ``gdbarch'' which will
270 # contain the current architecture. Care should be taken.
274 # A value to assign to MEMBER of the new gdbarch object should
275 # the target architecture code fail to change the PREDEFAULT
278 # If POSTDEFAULT is empty, no post update is performed.
280 # If both INVALID_P and POSTDEFAULT are non-empty then
281 # INVALID_P will be used to determine if MEMBER should be
282 # changed to POSTDEFAULT.
284 # If a non-empty POSTDEFAULT and a zero INVALID_P are
285 # specified, POSTDEFAULT will be used as the default for the
286 # non- multi-arch target (regardless of the value of
289 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
291 # Variable declarations can refer to ``gdbarch'' which will
292 # contain the current architecture. Care should be taken.
296 # A predicate equation that validates MEMBER. Non-zero is
297 # returned if the code creating the new architecture failed to
298 # initialize MEMBER or the initialized the member is invalid.
299 # If POSTDEFAULT is non-empty then MEMBER will be updated to
300 # that value. If POSTDEFAULT is empty then internal_error()
303 # If INVALID_P is empty, a check that MEMBER is no longer
304 # equal to PREDEFAULT is used.
306 # The expression ``0'' disables the INVALID_P check making
307 # PREDEFAULT a legitimate value.
309 # See also PREDEFAULT and POSTDEFAULT.
313 # printf style format string that can be used to print out the
314 # MEMBER. Sometimes "%s" is useful. For functions, this is
315 # ignored and the function address is printed.
317 # If FMT is empty, ``%ld'' is used.
321 # An optional equation that casts MEMBER to a value suitable
322 # for formatting by FMT.
324 # If PRINT is empty, ``(long)'' is used.
328 # An optional indicator for any predicte to wrap around the
331 # () -> Call a custom function to do the dump.
332 # exp -> Wrap print up in ``if (${print_p}) ...
333 # ``'' -> No predicate
335 # If PRINT_P is empty, ``1'' is always used.
348 # See below (DOCO) for description of each field
350 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
352 i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN
353 # Number of bits in a char or unsigned char for the target machine.
354 # Just like CHAR_BIT in <limits.h> but describes the target machine.
355 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
357 # Number of bits in a short or unsigned short for the target machine.
358 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
359 # Number of bits in an int or unsigned int for the target machine.
360 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
361 # Number of bits in a long or unsigned long for the target machine.
362 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
363 # Number of bits in a long long or unsigned long long for the target
365 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
366 # Number of bits in a float for the target machine.
367 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
368 # Number of bits in a double for the target machine.
369 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
370 # Number of bits in a long double for the target machine.
371 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0
372 # For most targets, a pointer on the target and its representation as an
373 # address in GDB have the same size and "look the same". For such a
374 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
375 # / addr_bit will be set from it.
377 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
378 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
380 # ptr_bit is the size of a pointer on the target
381 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
382 # addr_bit is the size of a target address as represented in gdb
383 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
384 # Number of bits in a BFD_VMA for the target object file format.
385 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
387 v::IEEE_FLOAT:int:ieee_float::::0:0::0:::
389 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
390 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
391 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
392 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
393 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
394 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
395 # Function for getting target's idea of a frame pointer. FIXME: GDB's
396 # whole scheme for dealing with "frames" and "frame pointers" needs a
398 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
400 M:::void:register_read:int regnum, char *buf:regnum, buf:
401 M:::void:register_write:int regnum, char *buf:regnum, buf:
403 v:2:NUM_REGS:int:num_regs::::0:-1
404 # This macro gives the number of pseudo-registers that live in the
405 # register namespace but do not get fetched or stored on the target.
406 # These pseudo-registers may be aliases for other registers,
407 # combinations of other registers, or they may be computed by GDB.
408 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
409 v:2:SP_REGNUM:int:sp_regnum::::0:-1
410 v:2:FP_REGNUM:int:fp_regnum::::0:-1
411 v:2:PC_REGNUM:int:pc_regnum::::0:-1
412 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
413 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
414 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
415 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
416 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
417 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
418 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
419 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
420 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
421 # Convert from an sdb register number to an internal gdb register number.
422 # This should be defined in tm.h, if REGISTER_NAMES is not set up
423 # to map one to one onto the sdb register numbers.
424 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
425 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
426 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
427 v:2:REGISTER_SIZE:int:register_size::::0:-1
428 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
429 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
430 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0
431 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
432 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0
433 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
434 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
435 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
436 # MAP a GDB RAW register number onto a simulator register number. See
437 # also include/...-sim.h.
438 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
439 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
440 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
441 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
443 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
444 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
445 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
446 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
447 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
448 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
449 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
450 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
451 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
452 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
453 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
454 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
455 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
456 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
457 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
458 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
460 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
461 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
462 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
463 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
465 f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
466 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
467 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
468 # This function is called when the value of a pseudo-register needs to
469 # be updated. Typically it will be defined on a per-architecture
471 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
472 # This function is called when the value of a pseudo-register needs to
473 # be set or stored. Typically it will be defined on a
474 # per-architecture basis.
475 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
477 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
478 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
479 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
481 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
482 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
483 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
484 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
485 F:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
486 f:2:POP_FRAME:void:pop_frame:void:-:::0
488 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
489 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
490 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
491 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
493 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
494 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
496 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
497 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
498 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
499 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
500 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
501 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
502 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
503 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
504 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
506 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
508 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
509 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
510 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
511 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
512 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
513 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
514 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
515 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
516 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
518 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
519 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
520 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
521 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
522 v:2:PARM_BOUNDARY:int:parm_boundary
524 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
525 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
526 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown
527 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
528 # On some machines there are bits in addresses which are not really
529 # part of the address, but are used by the kernel, the hardware, etc.
530 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
531 # we get a "real" address such as one would find in a symbol table.
532 # This is used only for addresses of instructions, and even then I'm
533 # not sure it's used in all contexts. It exists to deal with there
534 # being a few stray bits in the PC which would mislead us, not as some
535 # sort of generic thing to handle alignment or segmentation (it's
536 # possible it should be in TARGET_READ_PC instead).
537 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
538 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
539 # the target needs software single step. An ISA method to implement it.
541 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
542 # using the breakpoint system instead of blatting memory directly (as with rs6000).
544 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
545 # single step. If not, then implement single step using breakpoints.
546 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
547 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
548 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
549 # For SVR4 shared libraries, each call goes through a small piece of
550 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
551 # to nonzero if we are current stopped in one of these.
552 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
553 # A target might have problems with watchpoints as soon as the stack
554 # frame of the current function has been destroyed. This mostly happens
555 # as the first action in a funtion's epilogue. in_function_epilogue_p()
556 # is defined to return a non-zero value if either the given addr is one
557 # instruction after the stack destroying instruction up to the trailing
558 # return instruction or if we can figure out that the stack frame has
559 # already been invalidated regardless of the value of addr. Targets
560 # which don't suffer from that problem could just let this functionality
562 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
563 # Given a vector of command-line arguments, return a newly allocated
564 # string which, when passed to the create_inferior function, will be
565 # parsed (on Unix systems, by the shell) to yield the same vector.
566 # This function should call error() if the argument vector is not
567 # representable for this target or if this target does not support
568 # command-line arguments.
569 # ARGC is the number of elements in the vector.
570 # ARGV is an array of strings, one per argument.
571 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
578 exec > new-gdbarch.log
579 function_list |
while do_read
582 ${class} ${macro}(${actual})
583 ${returntype} ${function} ($formal)${attrib}
587 eval echo \"\ \ \ \
${r}=\
${${r}}\"
589 # #fallbackdefault=${fallbackdefault}
590 # #valid_p=${valid_p}
592 if class_is_predicate_p
&& fallback_default_p
594 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
598 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
600 echo "Error: postdefault is useless when invalid_p=0" 1>&2
604 if class_is_multiarch_p
606 if class_is_predicate_p
; then :
607 elif test "x${predefault}" = "x"
609 echo "Error: pure multi-arch function must have a predefault" 1>&2
618 compare_new gdbarch.log
624 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
626 /* Dynamic architecture support for GDB, the GNU debugger.
627 Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
629 This file is part of GDB.
631 This program is free software; you can redistribute it and/or modify
632 it under the terms of the GNU General Public License as published by
633 the Free Software Foundation; either version 2 of the License, or
634 (at your option) any later version.
636 This program is distributed in the hope that it will be useful,
637 but WITHOUT ANY WARRANTY; without even the implied warranty of
638 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
639 GNU General Public License for more details.
641 You should have received a copy of the GNU General Public License
642 along with this program; if not, write to the Free Software
643 Foundation, Inc., 59 Temple Place - Suite 330,
644 Boston, MA 02111-1307, USA. */
646 /* This file was created with the aid of \`\`gdbarch.sh''.
648 The Bourne shell script \`\`gdbarch.sh'' creates the files
649 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
650 against the existing \`\`gdbarch.[hc]''. Any differences found
653 If editing this file, please also run gdbarch.sh and merge any
654 changes into that script. Conversely, when making sweeping changes
655 to this file, modifying gdbarch.sh and using its output may prove
671 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
673 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
680 extern struct gdbarch *current_gdbarch;
683 /* If any of the following are defined, the target wasn't correctly
687 #if defined (EXTRA_FRAME_INFO)
688 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
693 #if defined (FRAME_FIND_SAVED_REGS)
694 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
698 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
699 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
706 printf "/* The following are pre-initialized by GDBARCH. */\n"
707 function_list |
while do_read
712 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
713 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
714 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
715 printf "#error \"Non multi-arch definition of ${macro}\"\n"
717 printf "#if GDB_MULTI_ARCH\n"
718 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
719 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
728 printf "/* The following are initialized by the target dependent code. */\n"
729 function_list |
while do_read
731 if [ -n "${comment}" ]
733 echo "${comment}" |
sed \
738 if class_is_multiarch_p
740 if class_is_predicate_p
743 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
746 if class_is_predicate_p
749 printf "#if defined (${macro})\n"
750 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
751 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
752 printf "#if !defined (${macro}_P)\n"
753 printf "#define ${macro}_P() (1)\n"
757 printf "/* Default predicate for non- multi-arch targets. */\n"
758 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
759 printf "#define ${macro}_P() (0)\n"
762 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
763 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro}_P)\n"
764 printf "#error \"Non multi-arch definition of ${macro}\"\n"
766 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
767 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
771 if class_is_variable_p
773 if fallback_default_p || class_is_predicate_p
776 printf "/* Default (value) for non- multi-arch platforms. */\n"
777 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
778 echo "#define ${macro} (${fallbackdefault})" \
779 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
783 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
784 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
785 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
786 printf "#error \"Non multi-arch definition of ${macro}\"\n"
788 printf "#if GDB_MULTI_ARCH\n"
789 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
790 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
794 if class_is_function_p
796 if class_is_multiarch_p
; then :
797 elif fallback_default_p || class_is_predicate_p
800 printf "/* Default (function) for non- multi-arch platforms. */\n"
801 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
802 if [ "x${fallbackdefault}" = "x0" ]
804 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
806 # FIXME: Should be passing current_gdbarch through!
807 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
808 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
813 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
815 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
816 elif class_is_multiarch_p
818 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
820 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
822 if [ "x${formal}" = "xvoid" ]
824 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
826 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
828 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
829 if class_is_multiarch_p
; then :
831 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
832 printf "#error \"Non multi-arch definition of ${macro}\"\n"
834 printf "#if GDB_MULTI_ARCH\n"
835 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
836 if [ "x${actual}" = "x" ]
838 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
839 elif [ "x${actual}" = "x-" ]
841 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
843 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
854 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
857 /* Mechanism for co-ordinating the selection of a specific
860 GDB targets (*-tdep.c) can register an interest in a specific
861 architecture. Other GDB components can register a need to maintain
862 per-architecture data.
864 The mechanisms below ensures that there is only a loose connection
865 between the set-architecture command and the various GDB
866 components. Each component can independently register their need
867 to maintain architecture specific data with gdbarch.
871 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
874 The more traditional mega-struct containing architecture specific
875 data for all the various GDB components was also considered. Since
876 GDB is built from a variable number of (fairly independent)
877 components it was determined that the global aproach was not
881 /* Register a new architectural family with GDB.
883 Register support for the specified ARCHITECTURE with GDB. When
884 gdbarch determines that the specified architecture has been
885 selected, the corresponding INIT function is called.
889 The INIT function takes two parameters: INFO which contains the
890 information available to gdbarch about the (possibly new)
891 architecture; ARCHES which is a list of the previously created
892 \`\`struct gdbarch'' for this architecture.
894 The INIT function parameter INFO shall, as far as possible, be
895 pre-initialized with information obtained from INFO.ABFD or
896 previously selected architecture (if similar). INIT shall ensure
897 that the INFO.BYTE_ORDER is non-zero.
899 The INIT function shall return any of: NULL - indicating that it
900 doesn't recognize the selected architecture; an existing \`\`struct
901 gdbarch'' from the ARCHES list - indicating that the new
902 architecture is just a synonym for an earlier architecture (see
903 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
904 - that describes the selected architecture (see gdbarch_alloc()).
906 The DUMP_TDEP function shall print out all target specific values.
907 Care should be taken to ensure that the function works in both the
908 multi-arch and non- multi-arch cases. */
912 struct gdbarch *gdbarch;
913 struct gdbarch_list *next;
918 /* Use default: NULL (ZERO). */
919 const struct bfd_arch_info *bfd_arch_info;
921 /* Use default: 0 (ZERO). */
924 /* Use default: NULL (ZERO). */
927 /* Use default: NULL (ZERO). */
928 struct gdbarch_tdep_info *tdep_info;
931 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
932 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
934 /* DEPRECATED - use gdbarch_register() */
935 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
937 extern void gdbarch_register (enum bfd_architecture architecture,
938 gdbarch_init_ftype *,
939 gdbarch_dump_tdep_ftype *);
942 /* Return a freshly allocated, NULL terminated, array of the valid
943 architecture names. Since architectures are registered during the
944 _initialize phase this function only returns useful information
945 once initialization has been completed. */
947 extern const char **gdbarch_printable_names (void);
950 /* Helper function. Search the list of ARCHES for a GDBARCH that
951 matches the information provided by INFO. */
953 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
956 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
957 basic initialization using values obtained from the INFO andTDEP
958 parameters. set_gdbarch_*() functions are called to complete the
959 initialization of the object. */
961 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
964 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
965 It is assumed that the caller freeds the \`\`struct
968 extern void gdbarch_free (struct gdbarch *);
971 /* Helper function. Force an update of the current architecture.
973 The actual architecture selected is determined by INFO, \`\`(gdb) set
974 architecture'' et.al., the existing architecture and BFD's default
975 architecture. INFO should be initialized to zero and then selected
976 fields should be updated.
978 Returns non-zero if the update succeeds */
980 extern int gdbarch_update_p (struct gdbarch_info info);
984 /* Register per-architecture data-pointer.
986 Reserve space for a per-architecture data-pointer. An identifier
987 for the reserved data-pointer is returned. That identifer should
988 be saved in a local static variable.
990 The per-architecture data-pointer can be initialized in one of two
991 ways: The value can be set explicitly using a call to
992 set_gdbarch_data(); the value can be set implicitly using the value
993 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
994 called after the basic architecture vector has been created.
996 When a previously created architecture is re-selected, the
997 per-architecture data-pointer for that previous architecture is
998 restored. INIT() is not called.
1000 During initialization, multiple assignments of the data-pointer are
1001 allowed, non-NULL values are deleted by calling FREE(). If the
1002 architecture is deleted using gdbarch_free() all non-NULL data
1003 pointers are also deleted using FREE().
1005 Multiple registrarants for any architecture are allowed (and
1006 strongly encouraged). */
1008 struct gdbarch_data;
1010 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1011 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1013 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1014 gdbarch_data_free_ftype *free);
1015 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1016 struct gdbarch_data *data,
1019 extern void *gdbarch_data (struct gdbarch_data*);
1022 /* Register per-architecture memory region.
1024 Provide a memory-region swap mechanism. Per-architecture memory
1025 region are created. These memory regions are swapped whenever the
1026 architecture is changed. For a new architecture, the memory region
1027 is initialized with zero (0) and the INIT function is called.
1029 Memory regions are swapped / initialized in the order that they are
1030 registered. NULL DATA and/or INIT values can be specified.
1032 New code should use register_gdbarch_data(). */
1034 typedef void (gdbarch_swap_ftype) (void);
1035 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1036 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1040 /* The target-system-dependent byte order is dynamic */
1042 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
1043 is selectable at runtime. The user can use the \`\`set endian''
1044 command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when
1045 target_byte_order should be auto-detected (from the program image
1049 /* Multi-arch GDB is always bi-endian. */
1050 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1053 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
1054 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
1055 when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
1056 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1057 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1059 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
1063 extern int target_byte_order;
1064 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1065 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
1066 and expect defs.h to re-define TARGET_BYTE_ORDER. */
1067 #undef TARGET_BYTE_ORDER
1069 #ifndef TARGET_BYTE_ORDER
1070 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1073 extern int target_byte_order_auto;
1074 #ifndef TARGET_BYTE_ORDER_AUTO
1075 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1080 /* The target-system-dependent BFD architecture is dynamic */
1082 extern int target_architecture_auto;
1083 #ifndef TARGET_ARCHITECTURE_AUTO
1084 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1087 extern const struct bfd_arch_info *target_architecture;
1088 #ifndef TARGET_ARCHITECTURE
1089 #define TARGET_ARCHITECTURE (target_architecture + 0)
1093 /* The target-system-dependent disassembler is semi-dynamic */
1095 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1096 unsigned int len, disassemble_info *info);
1098 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1099 disassemble_info *info);
1101 extern void dis_asm_print_address (bfd_vma addr,
1102 disassemble_info *info);
1104 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1105 extern disassemble_info tm_print_insn_info;
1106 #ifndef TARGET_PRINT_INSN_INFO
1107 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1112 /* Set the dynamic target-system-dependent parameters (architecture,
1113 byte-order, ...) using information found in the BFD */
1115 extern void set_gdbarch_from_file (bfd *);
1118 /* Initialize the current architecture to the "first" one we find on
1121 extern void initialize_current_architecture (void);
1123 /* For non-multiarched targets, do any initialization of the default
1124 gdbarch object necessary after the _initialize_MODULE functions
1126 extern void initialize_non_multiarch ();
1128 /* gdbarch trace variable */
1129 extern int gdbarch_debug;
1131 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1136 #../move-if-change new-gdbarch.h gdbarch.h
1137 compare_new gdbarch.h
1144 exec > new-gdbarch.c
1149 #include "arch-utils.h"
1153 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1155 /* Just include everything in sight so that the every old definition
1156 of macro is visible. */
1157 #include "gdb_string.h"
1161 #include "inferior.h"
1162 #include "breakpoint.h"
1163 #include "gdb_wait.h"
1164 #include "gdbcore.h"
1167 #include "gdbthread.h"
1168 #include "annotate.h"
1169 #include "symfile.h" /* for overlay functions */
1170 #include "value.h" /* For old tm.h/nm.h macros. */
1174 #include "floatformat.h"
1176 #include "gdb_assert.h"
1177 #include "gdb-events.h"
1179 /* Static function declarations */
1181 static void verify_gdbarch (struct gdbarch *gdbarch);
1182 static void alloc_gdbarch_data (struct gdbarch *);
1183 static void init_gdbarch_data (struct gdbarch *);
1184 static void free_gdbarch_data (struct gdbarch *);
1185 static void init_gdbarch_swap (struct gdbarch *);
1186 static void swapout_gdbarch_swap (struct gdbarch *);
1187 static void swapin_gdbarch_swap (struct gdbarch *);
1189 /* Convenience macro for allocting typesafe memory. */
1192 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1196 /* Non-zero if we want to trace architecture code. */
1198 #ifndef GDBARCH_DEBUG
1199 #define GDBARCH_DEBUG 0
1201 int gdbarch_debug = GDBARCH_DEBUG;
1205 # gdbarch open the gdbarch object
1207 printf "/* Maintain the struct gdbarch object */\n"
1209 printf "struct gdbarch\n"
1211 printf " /* basic architectural information */\n"
1212 function_list |
while do_read
1216 printf " ${returntype} ${function};\n"
1220 printf " /* target specific vector. */\n"
1221 printf " struct gdbarch_tdep *tdep;\n"
1222 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1224 printf " /* per-architecture data-pointers */\n"
1225 printf " unsigned nr_data;\n"
1226 printf " void **data;\n"
1228 printf " /* per-architecture swap-regions */\n"
1229 printf " struct gdbarch_swap *swap;\n"
1232 /* Multi-arch values.
1234 When extending this structure you must:
1236 Add the field below.
1238 Declare set/get functions and define the corresponding
1241 gdbarch_alloc(): If zero/NULL is not a suitable default,
1242 initialize the new field.
1244 verify_gdbarch(): Confirm that the target updated the field
1247 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1250 \`\`startup_gdbarch()'': Append an initial value to the static
1251 variable (base values on the host's c-type system).
1253 get_gdbarch(): Implement the set/get functions (probably using
1254 the macro's as shortcuts).
1259 function_list |
while do_read
1261 if class_is_variable_p
1263 printf " ${returntype} ${function};\n"
1264 elif class_is_function_p
1266 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1271 # A pre-initialized vector
1275 /* The default architecture uses host values (for want of a better
1279 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1281 printf "struct gdbarch startup_gdbarch =\n"
1283 printf " /* basic architecture information */\n"
1284 function_list |
while do_read
1288 printf " ${staticdefault},\n"
1292 /* target specific vector and its dump routine */
1294 /*per-architecture data-pointers and swap regions */
1296 /* Multi-arch values */
1298 function_list |
while do_read
1300 if class_is_function_p || class_is_variable_p
1302 printf " ${staticdefault},\n"
1306 /* startup_gdbarch() */
1309 struct gdbarch *current_gdbarch = &startup_gdbarch;
1311 /* Do any initialization needed for a non-multiarch configuration
1312 after the _initialize_MODULE functions have been run. */
1314 initialize_non_multiarch ()
1316 alloc_gdbarch_data (&startup_gdbarch);
1317 init_gdbarch_data (&startup_gdbarch);
1321 # Create a new gdbarch struct
1325 /* Create a new \`\`struct gdbarch'' based on information provided by
1326 \`\`struct gdbarch_info''. */
1331 gdbarch_alloc (const struct gdbarch_info *info,
1332 struct gdbarch_tdep *tdep)
1334 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1335 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1336 the current local architecture and not the previous global
1337 architecture. This ensures that the new architectures initial
1338 values are not influenced by the previous architecture. Once
1339 everything is parameterised with gdbarch, this will go away. */
1340 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1341 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1343 alloc_gdbarch_data (current_gdbarch);
1345 current_gdbarch->tdep = tdep;
1348 function_list |
while do_read
1352 printf " current_gdbarch->${function} = info->${function};\n"
1356 printf " /* Force the explicit initialization of these. */\n"
1357 function_list |
while do_read
1359 if class_is_function_p || class_is_variable_p
1361 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1363 printf " current_gdbarch->${function} = ${predefault};\n"
1368 /* gdbarch_alloc() */
1370 return current_gdbarch;
1374 # Free a gdbarch struct.
1378 /* Free a gdbarch struct. This should never happen in normal
1379 operation --- once you've created a gdbarch, you keep it around.
1380 However, if an architecture's init function encounters an error
1381 building the structure, it may need to clean up a partially
1382 constructed gdbarch. */
1385 gdbarch_free (struct gdbarch *arch)
1387 gdb_assert (arch != NULL);
1388 free_gdbarch_data (arch);
1393 # verify a new architecture
1396 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1400 verify_gdbarch (struct gdbarch *gdbarch)
1402 struct ui_file *log;
1403 struct cleanup *cleanups;
1406 /* Only perform sanity checks on a multi-arch target. */
1407 if (!GDB_MULTI_ARCH)
1409 log = mem_fileopen ();
1410 cleanups = make_cleanup_ui_file_delete (log);
1412 if (gdbarch->byte_order == 0)
1413 fprintf_unfiltered (log, "\n\tbyte-order");
1414 if (gdbarch->bfd_arch_info == NULL)
1415 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1416 /* Check those that need to be defined for the given multi-arch level. */
1418 function_list |
while do_read
1420 if class_is_function_p || class_is_variable_p
1422 if [ "x${invalid_p}" = "x0" ]
1424 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1425 elif class_is_predicate_p
1427 printf " /* Skip verify of ${function}, has predicate */\n"
1428 # FIXME: See do_read for potential simplification
1429 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1431 printf " if (${invalid_p})\n"
1432 printf " gdbarch->${function} = ${postdefault};\n"
1433 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1435 printf " if (gdbarch->${function} == ${predefault})\n"
1436 printf " gdbarch->${function} = ${postdefault};\n"
1437 elif [ -n "${postdefault}" ]
1439 printf " if (gdbarch->${function} == 0)\n"
1440 printf " gdbarch->${function} = ${postdefault};\n"
1441 elif [ -n "${invalid_p}" ]
1443 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1444 printf " && (${invalid_p}))\n"
1445 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1446 elif [ -n "${predefault}" ]
1448 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1449 printf " && (gdbarch->${function} == ${predefault}))\n"
1450 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1455 buf = ui_file_xstrdup (log, &dummy);
1456 make_cleanup (xfree, buf);
1457 if (strlen (buf) > 0)
1458 internal_error (__FILE__, __LINE__,
1459 "verify_gdbarch: the following are invalid ...%s",
1461 do_cleanups (cleanups);
1465 # dump the structure
1469 /* Print out the details of the current architecture. */
1471 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1472 just happens to match the global variable \`\`current_gdbarch''. That
1473 way macros refering to that variable get the local and not the global
1474 version - ulgh. Once everything is parameterised with gdbarch, this
1478 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1480 fprintf_unfiltered (file,
1481 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1484 function_list |
sort -t: +2 |
while do_read
1486 # multiarch functions don't have macros.
1487 if class_is_multiarch_p
1489 printf " if (GDB_MULTI_ARCH)\n"
1490 printf " fprintf_unfiltered (file,\n"
1491 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1492 printf " (long) current_gdbarch->${function});\n"
1495 printf "#ifdef ${macro}\n"
1496 if [ "x${returntype}" = "xvoid" ]
1498 printf "#if GDB_MULTI_ARCH\n"
1499 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1501 if class_is_function_p
1503 printf " fprintf_unfiltered (file,\n"
1504 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1505 printf " \"${macro}(${actual})\",\n"
1506 printf " XSTRING (${macro} (${actual})));\n"
1508 printf " fprintf_unfiltered (file,\n"
1509 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1510 printf " XSTRING (${macro}));\n"
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 == 0
2040 && !TARGET_BYTE_ORDER_AUTO)
2041 info.byte_order = TARGET_BYTE_ORDER;
2042 /* From the INFO struct. */
2043 if (info.byte_order == 0
2044 && info.abfd != NULL)
2045 info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
2046 : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN
2048 /* From the current target. */
2049 if (info.byte_order == 0)
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 == BIG_ENDIAN ? "big"
2066 : info.byte_order == LITTLE_ENDIAN ? "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