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}}\" = \"\
\"
79 test "${staticdefault}" || staticdefault
=0
80 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
81 # multi-arch defaults.
82 # test "${predefault}" || predefault=0
83 test "${fmt}" ||
fmt="%ld"
84 test "${print}" || print
="(long) ${macro}"
85 case "${invalid_p}" in
88 if [ -n "${predefault}" ]
90 #invalid_p="gdbarch->${function} == ${predefault}"
91 valid_p
="gdbarch->${function} != ${predefault}"
93 #invalid_p="gdbarch->${function} == 0"
94 valid_p
="gdbarch->${function} != 0"
97 * ) valid_p
="!(${invalid_p})"
100 # PREDEFAULT is a valid fallback definition of MEMBER when
101 # multi-arch is not enabled. This ensures that the
102 # default value, when multi-arch is the same as the
103 # default value when not multi-arch. POSTDEFAULT is
104 # always a valid definition of MEMBER as this again
105 # ensures consistency.
107 if [ -n "${postdefault}" ]
109 fallbackdefault
="${postdefault}"
110 elif [ -n "${predefault}" ]
112 fallbackdefault
="${predefault}"
117 #NOT YET: See gdbarch.log for basic verification of
132 fallback_default_p
()
134 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
135 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
138 class_is_variable_p
()
146 class_is_function_p
()
149 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
154 class_is_multiarch_p
()
162 class_is_predicate_p
()
165 *F
* |
*V
* |
*M
* ) true
;;
179 # dump out/verify the doco
189 # F -> function + predicate
190 # hiding a function + predicate to test function validity
193 # V -> variable + predicate
194 # hiding a variable + predicate to test variables validity
196 # hiding something from the ``struct info'' object
197 # m -> multi-arch function
198 # hiding a multi-arch function (parameterised with the architecture)
199 # M -> multi-arch function + predicate
200 # hiding a multi-arch function + predicate to test function validity
204 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
205 # LEVEL is a predicate on checking that a given method is
206 # initialized (using INVALID_P).
210 # The name of the MACRO that this method is to be accessed by.
214 # For functions, the return type; for variables, the data type
218 # For functions, the member function name; for variables, the
219 # variable name. Member function names are always prefixed with
220 # ``gdbarch_'' for name-space purity.
224 # The formal argument list. It is assumed that the formal
225 # argument list includes the actual name of each list element.
226 # A function with no arguments shall have ``void'' as the
227 # formal argument list.
231 # The list of actual arguments. The arguments specified shall
232 # match the FORMAL list given above. Functions with out
233 # arguments leave this blank.
237 # Any GCC attributes that should be attached to the function
238 # declaration. At present this field is unused.
242 # To help with the GDB startup a static gdbarch object is
243 # created. STATICDEFAULT is the value to insert into that
244 # static gdbarch object. Since this a static object only
245 # simple expressions can be used.
247 # If STATICDEFAULT is empty, zero is used.
251 # An initial value to assign to MEMBER of the freshly
252 # malloc()ed gdbarch object. After initialization, the
253 # freshly malloc()ed object is passed to the target
254 # architecture code for further updates.
256 # If PREDEFAULT is empty, zero is used.
258 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
259 # INVALID_P are specified, PREDEFAULT will be used as the
260 # default for the non- multi-arch target.
262 # A zero PREDEFAULT function will force the fallback to call
265 # Variable declarations can refer to ``gdbarch'' which will
266 # contain the current architecture. Care should be taken.
270 # A value to assign to MEMBER of the new gdbarch object should
271 # the target architecture code fail to change the PREDEFAULT
274 # If POSTDEFAULT is empty, no post update is performed.
276 # If both INVALID_P and POSTDEFAULT are non-empty then
277 # INVALID_P will be used to determine if MEMBER should be
278 # changed to POSTDEFAULT.
280 # If a non-empty POSTDEFAULT and a zero INVALID_P are
281 # specified, POSTDEFAULT will be used as the default for the
282 # non- multi-arch target (regardless of the value of
285 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
287 # Variable declarations can refer to ``gdbarch'' which will
288 # contain the current architecture. Care should be taken.
292 # A predicate equation that validates MEMBER. Non-zero is
293 # returned if the code creating the new architecture failed to
294 # initialize MEMBER or the initialized the member is invalid.
295 # If POSTDEFAULT is non-empty then MEMBER will be updated to
296 # that value. If POSTDEFAULT is empty then internal_error()
299 # If INVALID_P is empty, a check that MEMBER is no longer
300 # equal to PREDEFAULT is used.
302 # The expression ``0'' disables the INVALID_P check making
303 # PREDEFAULT a legitimate value.
305 # See also PREDEFAULT and POSTDEFAULT.
309 # printf style format string that can be used to print out the
310 # MEMBER. Sometimes "%s" is useful. For functions, this is
311 # ignored and the function address is printed.
313 # If FMT is empty, ``%ld'' is used.
317 # An optional equation that casts MEMBER to a value suitable
318 # for formatting by FMT.
320 # If PRINT is empty, ``(long)'' is used.
324 # An optional indicator for any predicte to wrap around the
327 # () -> Call a custom function to do the dump.
328 # exp -> Wrap print up in ``if (${print_p}) ...
329 # ``'' -> No predicate
331 # If PRINT_P is empty, ``1'' is always used.
344 # See below (DOCO) for description of each field
346 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
348 i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN
349 # Number of bits in a char or unsigned char for the target machine.
350 # Just like CHAR_BIT in <limits.h> but describes the target machine.
351 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
353 # Number of bits in a short or unsigned short for the target machine.
354 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
355 # Number of bits in an int or unsigned int for the target machine.
356 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
357 # Number of bits in a long or unsigned long for the target machine.
358 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
359 # Number of bits in a long long or unsigned long long for the target
361 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
362 # Number of bits in a float for the target machine.
363 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
364 # Number of bits in a double for the target machine.
365 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
366 # Number of bits in a long double for the target machine.
367 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0
368 # For most targets, a pointer on the target and its representation as an
369 # address in GDB have the same size and "look the same". For such a
370 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
371 # / addr_bit will be set from it.
373 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
374 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
376 # ptr_bit is the size of a pointer on the target
377 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
378 # addr_bit is the size of a target address as represented in gdb
379 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
380 # Number of bits in a BFD_VMA for the target object file format.
381 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
383 v::IEEE_FLOAT:int:ieee_float::::0:0::0:::
385 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
386 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
387 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
388 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
389 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
390 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
391 # Function for getting target's idea of a frame pointer. FIXME: GDB's
392 # whole scheme for dealing with "frames" and "frame pointers" needs a
394 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
396 M:::void:register_read:int regnum, char *buf:regnum, buf:
397 M:::void:register_write:int regnum, char *buf:regnum, buf:
399 v:2:NUM_REGS:int:num_regs::::0:-1
400 # This macro gives the number of pseudo-registers that live in the
401 # register namespace but do not get fetched or stored on the target.
402 # These pseudo-registers may be aliases for other registers,
403 # combinations of other registers, or they may be computed by GDB.
404 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
405 v:2:SP_REGNUM:int:sp_regnum::::0:-1
406 v:2:FP_REGNUM:int:fp_regnum::::0:-1
407 v:2:PC_REGNUM:int:pc_regnum::::0:-1
408 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
409 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
410 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
411 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
412 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
413 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
414 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
415 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
416 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
417 # Convert from an sdb register number to an internal gdb register number.
418 # This should be defined in tm.h, if REGISTER_NAMES is not set up
419 # to map one to one onto the sdb register numbers.
420 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
421 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
422 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
423 v:2:REGISTER_SIZE:int:register_size::::0:-1
424 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
425 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
426 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0
427 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
428 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0
429 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
430 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
431 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
432 # MAP a GDB RAW register number onto a simulator register number. See
433 # also include/...-sim.h.
434 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
435 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
436 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
437 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
439 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
440 v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
441 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
442 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
443 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
444 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
445 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
446 f:2: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
447 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
448 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
449 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
450 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
451 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
452 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
453 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
454 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
456 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
457 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
458 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
459 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
461 f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
462 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
463 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
464 # This function is called when the value of a pseudo-register needs to
465 # be updated. Typically it will be defined on a per-architecture
467 f:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:::0::0
468 # This function is called when the value of a pseudo-register needs to
469 # be set or stored. Typically it will be defined on a
470 # per-architecture basis.
471 f:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:::0::0
473 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
474 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
475 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
477 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
478 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
479 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
480 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
481 f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
482 f:2:POP_FRAME:void:pop_frame:void:-:::0
484 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
485 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
486 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
487 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::0
489 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
490 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
492 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
493 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
494 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
495 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
496 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
497 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
498 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
499 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
500 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
502 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
504 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
505 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
506 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
507 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
508 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
509 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
510 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
511 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
512 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
514 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
515 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
516 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
517 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
518 v:2:PARM_BOUNDARY:int:parm_boundary
520 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
521 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
522 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown
523 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
524 # On some machines there are bits in addresses which are not really
525 # part of the address, but are used by the kernel, the hardware, etc.
526 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
527 # we get a "real" address such as one would find in a symbol table.
528 # This is used only for addresses of instructions, and even then I'm
529 # not sure it's used in all contexts. It exists to deal with there
530 # being a few stray bits in the PC which would mislead us, not as some
531 # sort of generic thing to handle alignment or segmentation (it's
532 # possible it should be in TARGET_READ_PC instead).
533 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
534 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
535 # the target needs software single step. An ISA method to implement it.
537 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
538 # using the breakpoint system instead of blatting memory directly (as with rs6000).
540 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
541 # single step. If not, then implement single step using breakpoints.
542 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
543 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
544 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
545 # For SVR4 shared libraries, each call goes through a small piece of
546 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
547 # to nonzero if we are current stopped in one of these.
548 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
549 # A target might have problems with watchpoints as soon as the stack
550 # frame of the current function has been destroyed. This mostly happens
551 # as the first action in a funtion's epilogue. in_function_epilogue_p()
552 # is defined to return a non-zero value if either the given addr is one
553 # instruction after the stack destroying instruction up to the trailing
554 # return instruction or if we can figure out that the stack frame has
555 # already been invalidated regardless of the value of addr. Targets
556 # which don't suffer from that problem could just let this functionality
558 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
565 exec > new-gdbarch.log
566 function_list |
while do_read
569 ${class} ${macro}(${actual})
570 ${returntype} ${function} ($formal)${attrib}
574 eval echo \"\ \ \ \
${r}=\
${${r}}\"
576 # #fallbackdefault=${fallbackdefault}
577 # #valid_p=${valid_p}
579 if class_is_predicate_p
&& fallback_default_p
581 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
585 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
587 echo "Error: postdefault is useless when invalid_p=0" 1>&2
595 compare_new gdbarch.log
601 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
603 /* Dynamic architecture support for GDB, the GNU debugger.
604 Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
606 This file is part of GDB.
608 This program is free software; you can redistribute it and/or modify
609 it under the terms of the GNU General Public License as published by
610 the Free Software Foundation; either version 2 of the License, or
611 (at your option) any later version.
613 This program is distributed in the hope that it will be useful,
614 but WITHOUT ANY WARRANTY; without even the implied warranty of
615 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
616 GNU General Public License for more details.
618 You should have received a copy of the GNU General Public License
619 along with this program; if not, write to the Free Software
620 Foundation, Inc., 59 Temple Place - Suite 330,
621 Boston, MA 02111-1307, USA. */
623 /* This file was created with the aid of \`\`gdbarch.sh''.
625 The Bourne shell script \`\`gdbarch.sh'' creates the files
626 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
627 against the existing \`\`gdbarch.[hc]''. Any differences found
630 If editing this file, please also run gdbarch.sh and merge any
631 changes into that script. Conversely, when making sweeping changes
632 to this file, modifying gdbarch.sh and using its output may prove
648 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
650 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
657 extern struct gdbarch *current_gdbarch;
660 /* If any of the following are defined, the target wasn't correctly
664 #if defined (EXTRA_FRAME_INFO)
665 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
670 #if defined (FRAME_FIND_SAVED_REGS)
671 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
675 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
676 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
683 printf "/* The following are pre-initialized by GDBARCH. */\n"
684 function_list |
while do_read
689 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
690 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
691 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
692 printf "#error \"Non multi-arch definition of ${macro}\"\n"
694 printf "#if GDB_MULTI_ARCH\n"
695 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
696 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
705 printf "/* The following are initialized by the target dependent code. */\n"
706 function_list |
while do_read
708 if [ -n "${comment}" ]
710 echo "${comment}" |
sed \
715 if class_is_multiarch_p
717 if class_is_predicate_p
720 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
723 if class_is_predicate_p
726 printf "#if defined (${macro})\n"
727 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
728 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
729 printf "#if !defined (${macro}_P)\n"
730 printf "#define ${macro}_P() (1)\n"
734 printf "/* Default predicate for non- multi-arch targets. */\n"
735 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
736 printf "#define ${macro}_P() (0)\n"
739 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
740 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro}_P)\n"
741 printf "#error \"Non multi-arch definition of ${macro}\"\n"
743 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
744 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
748 if class_is_variable_p
750 if fallback_default_p || class_is_predicate_p
753 printf "/* Default (value) for non- multi-arch platforms. */\n"
754 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
755 echo "#define ${macro} (${fallbackdefault})" \
756 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
760 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
761 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
762 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
763 printf "#error \"Non multi-arch definition of ${macro}\"\n"
765 printf "#if GDB_MULTI_ARCH\n"
766 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
767 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
771 if class_is_function_p
773 if class_is_multiarch_p
; then :
774 elif fallback_default_p || class_is_predicate_p
777 printf "/* Default (function) for non- multi-arch platforms. */\n"
778 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
779 if [ "x${fallbackdefault}" = "x0" ]
781 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
783 # FIXME: Should be passing current_gdbarch through!
784 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
785 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
790 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
792 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
793 elif class_is_multiarch_p
795 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
797 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
799 if [ "x${formal}" = "xvoid" ]
801 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
803 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
805 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
806 if class_is_multiarch_p
; then :
808 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
809 printf "#error \"Non multi-arch definition of ${macro}\"\n"
811 printf "#if GDB_MULTI_ARCH\n"
812 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
813 if [ "x${actual}" = "x" ]
815 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
816 elif [ "x${actual}" = "x-" ]
818 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
820 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
831 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
834 /* Mechanism for co-ordinating the selection of a specific
837 GDB targets (*-tdep.c) can register an interest in a specific
838 architecture. Other GDB components can register a need to maintain
839 per-architecture data.
841 The mechanisms below ensures that there is only a loose connection
842 between the set-architecture command and the various GDB
843 components. Each component can independently register their need
844 to maintain architecture specific data with gdbarch.
848 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
851 The more traditional mega-struct containing architecture specific
852 data for all the various GDB components was also considered. Since
853 GDB is built from a variable number of (fairly independent)
854 components it was determined that the global aproach was not
858 /* Register a new architectural family with GDB.
860 Register support for the specified ARCHITECTURE with GDB. When
861 gdbarch determines that the specified architecture has been
862 selected, the corresponding INIT function is called.
866 The INIT function takes two parameters: INFO which contains the
867 information available to gdbarch about the (possibly new)
868 architecture; ARCHES which is a list of the previously created
869 \`\`struct gdbarch'' for this architecture.
871 The INIT function parameter INFO shall, as far as possible, be
872 pre-initialized with information obtained from INFO.ABFD or
873 previously selected architecture (if similar). INIT shall ensure
874 that the INFO.BYTE_ORDER is non-zero.
876 The INIT function shall return any of: NULL - indicating that it
877 doesn't recognize the selected architecture; an existing \`\`struct
878 gdbarch'' from the ARCHES list - indicating that the new
879 architecture is just a synonym for an earlier architecture (see
880 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
881 - that describes the selected architecture (see gdbarch_alloc()).
883 The DUMP_TDEP function shall print out all target specific values.
884 Care should be taken to ensure that the function works in both the
885 multi-arch and non- multi-arch cases. */
889 struct gdbarch *gdbarch;
890 struct gdbarch_list *next;
895 /* Use default: NULL (ZERO). */
896 const struct bfd_arch_info *bfd_arch_info;
898 /* Use default: 0 (ZERO). */
901 /* Use default: NULL (ZERO). */
904 /* Use default: NULL (ZERO). */
905 struct gdbarch_tdep_info *tdep_info;
908 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
909 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
911 /* DEPRECATED - use gdbarch_register() */
912 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
914 extern void gdbarch_register (enum bfd_architecture architecture,
915 gdbarch_init_ftype *,
916 gdbarch_dump_tdep_ftype *);
919 /* Return a freshly allocated, NULL terminated, array of the valid
920 architecture names. Since architectures are registered during the
921 _initialize phase this function only returns useful information
922 once initialization has been completed. */
924 extern const char **gdbarch_printable_names (void);
927 /* Helper function. Search the list of ARCHES for a GDBARCH that
928 matches the information provided by INFO. */
930 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
933 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
934 basic initialization using values obtained from the INFO andTDEP
935 parameters. set_gdbarch_*() functions are called to complete the
936 initialization of the object. */
938 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
941 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
942 It is assumed that the caller freeds the \`\`struct
945 extern void gdbarch_free (struct gdbarch *);
948 /* Helper function. Force an update of the current architecture.
950 The actual architecture selected is determined by INFO, \`\`(gdb) set
951 architecture'' et.al., the existing architecture and BFD's default
952 architecture. INFO should be initialized to zero and then selected
953 fields should be updated.
955 Returns non-zero if the update succeeds */
957 extern int gdbarch_update_p (struct gdbarch_info info);
961 /* Register per-architecture data-pointer.
963 Reserve space for a per-architecture data-pointer. An identifier
964 for the reserved data-pointer is returned. That identifer should
965 be saved in a local static variable.
967 The per-architecture data-pointer can be initialized in one of two
968 ways: The value can be set explicitly using a call to
969 set_gdbarch_data(); the value can be set implicitly using the value
970 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
971 called after the basic architecture vector has been created.
973 When a previously created architecture is re-selected, the
974 per-architecture data-pointer for that previous architecture is
975 restored. INIT() is not called.
977 During initialization, multiple assignments of the data-pointer are
978 allowed, non-NULL values are deleted by calling FREE(). If the
979 architecture is deleted using gdbarch_free() all non-NULL data
980 pointers are also deleted using FREE().
982 Multiple registrarants for any architecture are allowed (and
983 strongly encouraged). */
987 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
988 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
990 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
991 gdbarch_data_free_ftype *free);
992 extern void set_gdbarch_data (struct gdbarch *gdbarch,
993 struct gdbarch_data *data,
996 extern void *gdbarch_data (struct gdbarch_data*);
999 /* Register per-architecture memory region.
1001 Provide a memory-region swap mechanism. Per-architecture memory
1002 region are created. These memory regions are swapped whenever the
1003 architecture is changed. For a new architecture, the memory region
1004 is initialized with zero (0) and the INIT function is called.
1006 Memory regions are swapped / initialized in the order that they are
1007 registered. NULL DATA and/or INIT values can be specified.
1009 New code should use register_gdbarch_data(). */
1011 typedef void (gdbarch_swap_ftype) (void);
1012 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1013 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1017 /* The target-system-dependent byte order is dynamic */
1019 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
1020 is selectable at runtime. The user can use the \`\`set endian''
1021 command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when
1022 target_byte_order should be auto-detected (from the program image
1026 /* Multi-arch GDB is always bi-endian. */
1027 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1030 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
1031 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
1032 when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
1033 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1034 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1036 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
1040 extern int target_byte_order;
1041 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1042 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
1043 and expect defs.h to re-define TARGET_BYTE_ORDER. */
1044 #undef TARGET_BYTE_ORDER
1046 #ifndef TARGET_BYTE_ORDER
1047 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1050 extern int target_byte_order_auto;
1051 #ifndef TARGET_BYTE_ORDER_AUTO
1052 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1057 /* The target-system-dependent BFD architecture is dynamic */
1059 extern int target_architecture_auto;
1060 #ifndef TARGET_ARCHITECTURE_AUTO
1061 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1064 extern const struct bfd_arch_info *target_architecture;
1065 #ifndef TARGET_ARCHITECTURE
1066 #define TARGET_ARCHITECTURE (target_architecture + 0)
1070 /* The target-system-dependent disassembler is semi-dynamic */
1072 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1073 unsigned int len, disassemble_info *info);
1075 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1076 disassemble_info *info);
1078 extern void dis_asm_print_address (bfd_vma addr,
1079 disassemble_info *info);
1081 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1082 extern disassemble_info tm_print_insn_info;
1083 #ifndef TARGET_PRINT_INSN_INFO
1084 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1089 /* Set the dynamic target-system-dependent parameters (architecture,
1090 byte-order, ...) using information found in the BFD */
1092 extern void set_gdbarch_from_file (bfd *);
1095 /* Initialize the current architecture to the "first" one we find on
1098 extern void initialize_current_architecture (void);
1100 /* For non-multiarched targets, do any initialization of the default
1101 gdbarch object necessary after the _initialize_MODULE functions
1103 extern void initialize_non_multiarch ();
1105 /* gdbarch trace variable */
1106 extern int gdbarch_debug;
1108 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1113 #../move-if-change new-gdbarch.h gdbarch.h
1114 compare_new gdbarch.h
1121 exec > new-gdbarch.c
1126 #include "arch-utils.h"
1130 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1132 /* Just include everything in sight so that the every old definition
1133 of macro is visible. */
1134 #include "gdb_string.h"
1138 #include "inferior.h"
1139 #include "breakpoint.h"
1140 #include "gdb_wait.h"
1141 #include "gdbcore.h"
1144 #include "gdbthread.h"
1145 #include "annotate.h"
1146 #include "symfile.h" /* for overlay functions */
1147 #include "value.h" /* For old tm.h/nm.h macros. */
1151 #include "floatformat.h"
1153 #include "gdb_assert.h"
1154 #include "gdb-events.h"
1156 /* Static function declarations */
1158 static void verify_gdbarch (struct gdbarch *gdbarch);
1159 static void alloc_gdbarch_data (struct gdbarch *);
1160 static void init_gdbarch_data (struct gdbarch *);
1161 static void free_gdbarch_data (struct gdbarch *);
1162 static void init_gdbarch_swap (struct gdbarch *);
1163 static void swapout_gdbarch_swap (struct gdbarch *);
1164 static void swapin_gdbarch_swap (struct gdbarch *);
1166 /* Convenience macro for allocting typesafe memory. */
1169 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1173 /* Non-zero if we want to trace architecture code. */
1175 #ifndef GDBARCH_DEBUG
1176 #define GDBARCH_DEBUG 0
1178 int gdbarch_debug = GDBARCH_DEBUG;
1182 # gdbarch open the gdbarch object
1184 printf "/* Maintain the struct gdbarch object */\n"
1186 printf "struct gdbarch\n"
1188 printf " /* basic architectural information */\n"
1189 function_list |
while do_read
1193 printf " ${returntype} ${function};\n"
1197 printf " /* target specific vector. */\n"
1198 printf " struct gdbarch_tdep *tdep;\n"
1199 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1201 printf " /* per-architecture data-pointers */\n"
1202 printf " unsigned nr_data;\n"
1203 printf " void **data;\n"
1205 printf " /* per-architecture swap-regions */\n"
1206 printf " struct gdbarch_swap *swap;\n"
1209 /* Multi-arch values.
1211 When extending this structure you must:
1213 Add the field below.
1215 Declare set/get functions and define the corresponding
1218 gdbarch_alloc(): If zero/NULL is not a suitable default,
1219 initialize the new field.
1221 verify_gdbarch(): Confirm that the target updated the field
1224 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1227 \`\`startup_gdbarch()'': Append an initial value to the static
1228 variable (base values on the host's c-type system).
1230 get_gdbarch(): Implement the set/get functions (probably using
1231 the macro's as shortcuts).
1236 function_list |
while do_read
1238 if class_is_variable_p
1240 printf " ${returntype} ${function};\n"
1241 elif class_is_function_p
1243 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1248 # A pre-initialized vector
1252 /* The default architecture uses host values (for want of a better
1256 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1258 printf "struct gdbarch startup_gdbarch =\n"
1260 printf " /* basic architecture information */\n"
1261 function_list |
while do_read
1265 printf " ${staticdefault},\n"
1269 /* target specific vector and its dump routine */
1271 /*per-architecture data-pointers and swap regions */
1273 /* Multi-arch values */
1275 function_list |
while do_read
1277 if class_is_function_p || class_is_variable_p
1279 printf " ${staticdefault},\n"
1283 /* startup_gdbarch() */
1286 struct gdbarch *current_gdbarch = &startup_gdbarch;
1288 /* Do any initialization needed for a non-multiarch configuration
1289 after the _initialize_MODULE functions have been run. */
1291 initialize_non_multiarch ()
1293 alloc_gdbarch_data (&startup_gdbarch);
1294 init_gdbarch_data (&startup_gdbarch);
1298 # Create a new gdbarch struct
1302 /* Create a new \`\`struct gdbarch'' based on information provided by
1303 \`\`struct gdbarch_info''. */
1308 gdbarch_alloc (const struct gdbarch_info *info,
1309 struct gdbarch_tdep *tdep)
1311 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1312 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1313 the current local architecture and not the previous global
1314 architecture. This ensures that the new architectures initial
1315 values are not influenced by the previous architecture. Once
1316 everything is parameterised with gdbarch, this will go away. */
1317 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1318 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1320 alloc_gdbarch_data (current_gdbarch);
1322 current_gdbarch->tdep = tdep;
1325 function_list |
while do_read
1329 printf " current_gdbarch->${function} = info->${function};\n"
1333 printf " /* Force the explicit initialization of these. */\n"
1334 function_list |
while do_read
1336 if class_is_function_p || class_is_variable_p
1338 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1340 printf " current_gdbarch->${function} = ${predefault};\n"
1345 /* gdbarch_alloc() */
1347 return current_gdbarch;
1351 # Free a gdbarch struct.
1355 /* Free a gdbarch struct. This should never happen in normal
1356 operation --- once you've created a gdbarch, you keep it around.
1357 However, if an architecture's init function encounters an error
1358 building the structure, it may need to clean up a partially
1359 constructed gdbarch. */
1362 gdbarch_free (struct gdbarch *arch)
1364 gdb_assert (arch != NULL);
1365 free_gdbarch_data (arch);
1370 # verify a new architecture
1373 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1377 verify_gdbarch (struct gdbarch *gdbarch)
1379 struct ui_file *log;
1380 struct cleanup *cleanups;
1383 /* Only perform sanity checks on a multi-arch target. */
1384 if (!GDB_MULTI_ARCH)
1386 log = mem_fileopen ();
1387 cleanups = make_cleanup_ui_file_delete (log);
1389 if (gdbarch->byte_order == 0)
1390 fprintf_unfiltered (log, "\n\tbyte-order");
1391 if (gdbarch->bfd_arch_info == NULL)
1392 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1393 /* Check those that need to be defined for the given multi-arch level. */
1395 function_list |
while do_read
1397 if class_is_function_p || class_is_variable_p
1399 if [ "x${invalid_p}" = "x0" ]
1401 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1402 elif class_is_predicate_p
1404 printf " /* Skip verify of ${function}, has predicate */\n"
1405 # FIXME: See do_read for potential simplification
1406 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1408 printf " if (${invalid_p})\n"
1409 printf " gdbarch->${function} = ${postdefault};\n"
1410 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1412 printf " if (gdbarch->${function} == ${predefault})\n"
1413 printf " gdbarch->${function} = ${postdefault};\n"
1414 elif [ -n "${postdefault}" ]
1416 printf " if (gdbarch->${function} == 0)\n"
1417 printf " gdbarch->${function} = ${postdefault};\n"
1418 elif [ -n "${invalid_p}" ]
1420 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1421 printf " && (${invalid_p}))\n"
1422 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1423 elif [ -n "${predefault}" ]
1425 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1426 printf " && (gdbarch->${function} == ${predefault}))\n"
1427 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1432 buf = ui_file_xstrdup (log, &dummy);
1433 make_cleanup (xfree, buf);
1434 if (strlen (buf) > 0)
1435 internal_error (__FILE__, __LINE__,
1436 "verify_gdbarch: the following are invalid ...%s",
1438 do_cleanups (cleanups);
1442 # dump the structure
1446 /* Print out the details of the current architecture. */
1448 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1449 just happens to match the global variable \`\`current_gdbarch''. That
1450 way macros refering to that variable get the local and not the global
1451 version - ulgh. Once everything is parameterised with gdbarch, this
1455 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1457 fprintf_unfiltered (file,
1458 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1461 function_list |
sort -t: +2 |
while do_read
1463 # multiarch functions don't have macros.
1464 if class_is_multiarch_p
1466 printf " if (GDB_MULTI_ARCH)\n"
1467 printf " fprintf_unfiltered (file,\n"
1468 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1469 printf " (long) current_gdbarch->${function});\n"
1472 printf "#ifdef ${macro}\n"
1473 if [ "x${returntype}" = "xvoid" ]
1475 printf "#if GDB_MULTI_ARCH\n"
1476 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1478 if class_is_function_p
1480 printf " fprintf_unfiltered (file,\n"
1481 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1482 printf " \"${macro}(${actual})\",\n"
1483 printf " XSTRING (${macro} (${actual})));\n"
1485 printf " fprintf_unfiltered (file,\n"
1486 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1487 printf " XSTRING (${macro}));\n"
1489 if [ "x${returntype}" = "xvoid" ]
1493 if [ "x${print_p}" = "x()" ]
1495 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1496 elif [ "x${print_p}" = "x0" ]
1498 printf " /* skip print of ${macro}, print_p == 0. */\n"
1499 elif [ -n "${print_p}" ]
1501 printf " if (${print_p})\n"
1502 printf " fprintf_unfiltered (file,\n"
1503 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1504 printf " ${print});\n"
1505 elif class_is_function_p
1507 printf " if (GDB_MULTI_ARCH)\n"
1508 printf " fprintf_unfiltered (file,\n"
1509 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1510 printf " (long) current_gdbarch->${function}\n"
1511 printf " /*${macro} ()*/);\n"
1513 printf " fprintf_unfiltered (file,\n"
1514 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1515 printf " ${print});\n"
1520 if (current_gdbarch->dump_tdep != NULL)
1521 current_gdbarch->dump_tdep (current_gdbarch, file);
1529 struct gdbarch_tdep *
1530 gdbarch_tdep (struct gdbarch *gdbarch)
1532 if (gdbarch_debug >= 2)
1533 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1534 return gdbarch->tdep;
1538 function_list |
while do_read
1540 if class_is_predicate_p
1544 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1546 if [ -n "${valid_p}" ]
1548 printf " return ${valid_p};\n"
1550 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1554 if class_is_function_p
1557 printf "${returntype}\n"
1558 if [ "x${formal}" = "xvoid" ]
1560 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1562 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1565 printf " if (gdbarch->${function} == 0)\n"
1566 printf " internal_error (__FILE__, __LINE__,\n"
1567 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1568 printf " if (gdbarch_debug >= 2)\n"
1569 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1570 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1572 if class_is_multiarch_p
1579 if class_is_multiarch_p
1581 params
="gdbarch, ${actual}"
1586 if [ "x${returntype}" = "xvoid" ]
1588 printf " gdbarch->${function} (${params});\n"
1590 printf " return gdbarch->${function} (${params});\n"
1595 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1596 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1598 printf " gdbarch->${function} = ${function};\n"
1600 elif class_is_variable_p
1603 printf "${returntype}\n"
1604 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1606 if [ "x${invalid_p}" = "x0" ]
1608 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1609 elif [ -n "${invalid_p}" ]
1611 printf " if (${invalid_p})\n"
1612 printf " internal_error (__FILE__, __LINE__,\n"
1613 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1614 elif [ -n "${predefault}" ]
1616 printf " if (gdbarch->${function} == ${predefault})\n"
1617 printf " internal_error (__FILE__, __LINE__,\n"
1618 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1620 printf " if (gdbarch_debug >= 2)\n"
1621 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1622 printf " return gdbarch->${function};\n"
1626 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1627 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1629 printf " gdbarch->${function} = ${function};\n"
1631 elif class_is_info_p
1634 printf "${returntype}\n"
1635 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1637 printf " if (gdbarch_debug >= 2)\n"
1638 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1639 printf " return gdbarch->${function};\n"
1644 # All the trailing guff
1648 /* Keep a registry of per-architecture data-pointers required by GDB
1654 gdbarch_data_init_ftype *init;
1655 gdbarch_data_free_ftype *free;
1658 struct gdbarch_data_registration
1660 struct gdbarch_data *data;
1661 struct gdbarch_data_registration *next;
1664 struct gdbarch_data_registry
1667 struct gdbarch_data_registration *registrations;
1670 struct gdbarch_data_registry gdbarch_data_registry =
1675 struct gdbarch_data *
1676 register_gdbarch_data (gdbarch_data_init_ftype *init,
1677 gdbarch_data_free_ftype *free)
1679 struct gdbarch_data_registration **curr;
1680 for (curr = &gdbarch_data_registry.registrations;
1682 curr = &(*curr)->next);
1683 (*curr) = XMALLOC (struct gdbarch_data_registration);
1684 (*curr)->next = NULL;
1685 (*curr)->data = XMALLOC (struct gdbarch_data);
1686 (*curr)->data->index = gdbarch_data_registry.nr++;
1687 (*curr)->data->init = init;
1688 (*curr)->data->free = free;
1689 return (*curr)->data;
1693 /* Walk through all the registered users initializing each in turn. */
1696 init_gdbarch_data (struct gdbarch *gdbarch)
1698 struct gdbarch_data_registration *rego;
1699 for (rego = gdbarch_data_registry.registrations;
1703 struct gdbarch_data *data = rego->data;
1704 gdb_assert (data->index < gdbarch->nr_data);
1705 if (data->init != NULL)
1707 void *pointer = data->init (gdbarch);
1708 set_gdbarch_data (gdbarch, data, pointer);
1713 /* Create/delete the gdbarch data vector. */
1716 alloc_gdbarch_data (struct gdbarch *gdbarch)
1718 gdb_assert (gdbarch->data == NULL);
1719 gdbarch->nr_data = gdbarch_data_registry.nr;
1720 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1724 free_gdbarch_data (struct gdbarch *gdbarch)
1726 struct gdbarch_data_registration *rego;
1727 gdb_assert (gdbarch->data != NULL);
1728 for (rego = gdbarch_data_registry.registrations;
1732 struct gdbarch_data *data = rego->data;
1733 gdb_assert (data->index < gdbarch->nr_data);
1734 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1736 data->free (gdbarch, gdbarch->data[data->index]);
1737 gdbarch->data[data->index] = NULL;
1740 xfree (gdbarch->data);
1741 gdbarch->data = NULL;
1745 /* Initialize the current value of thee specified per-architecture
1749 set_gdbarch_data (struct gdbarch *gdbarch,
1750 struct gdbarch_data *data,
1753 gdb_assert (data->index < gdbarch->nr_data);
1754 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1755 data->free (gdbarch, gdbarch->data[data->index]);
1756 gdbarch->data[data->index] = pointer;
1759 /* Return the current value of the specified per-architecture
1763 gdbarch_data (struct gdbarch_data *data)
1765 gdb_assert (data->index < current_gdbarch->nr_data);
1766 return current_gdbarch->data[data->index];
1771 /* Keep a registry of swapped data required by GDB modules. */
1776 struct gdbarch_swap_registration *source;
1777 struct gdbarch_swap *next;
1780 struct gdbarch_swap_registration
1783 unsigned long sizeof_data;
1784 gdbarch_swap_ftype *init;
1785 struct gdbarch_swap_registration *next;
1788 struct gdbarch_swap_registry
1791 struct gdbarch_swap_registration *registrations;
1794 struct gdbarch_swap_registry gdbarch_swap_registry =
1800 register_gdbarch_swap (void *data,
1801 unsigned long sizeof_data,
1802 gdbarch_swap_ftype *init)
1804 struct gdbarch_swap_registration **rego;
1805 for (rego = &gdbarch_swap_registry.registrations;
1807 rego = &(*rego)->next);
1808 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1809 (*rego)->next = NULL;
1810 (*rego)->init = init;
1811 (*rego)->data = data;
1812 (*rego)->sizeof_data = sizeof_data;
1817 init_gdbarch_swap (struct gdbarch *gdbarch)
1819 struct gdbarch_swap_registration *rego;
1820 struct gdbarch_swap **curr = &gdbarch->swap;
1821 for (rego = gdbarch_swap_registry.registrations;
1825 if (rego->data != NULL)
1827 (*curr) = XMALLOC (struct gdbarch_swap);
1828 (*curr)->source = rego;
1829 (*curr)->swap = xmalloc (rego->sizeof_data);
1830 (*curr)->next = NULL;
1831 memset (rego->data, 0, rego->sizeof_data);
1832 curr = &(*curr)->next;
1834 if (rego->init != NULL)
1840 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1842 struct gdbarch_swap *curr;
1843 for (curr = gdbarch->swap;
1846 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1850 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1852 struct gdbarch_swap *curr;
1853 for (curr = gdbarch->swap;
1856 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1860 /* Keep a registry of the architectures known by GDB. */
1862 struct gdbarch_registration
1864 enum bfd_architecture bfd_architecture;
1865 gdbarch_init_ftype *init;
1866 gdbarch_dump_tdep_ftype *dump_tdep;
1867 struct gdbarch_list *arches;
1868 struct gdbarch_registration *next;
1871 static struct gdbarch_registration *gdbarch_registry = NULL;
1874 append_name (const char ***buf, int *nr, const char *name)
1876 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1882 gdbarch_printable_names (void)
1886 /* Accumulate a list of names based on the registed list of
1888 enum bfd_architecture a;
1890 const char **arches = NULL;
1891 struct gdbarch_registration *rego;
1892 for (rego = gdbarch_registry;
1896 const struct bfd_arch_info *ap;
1897 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1899 internal_error (__FILE__, __LINE__,
1900 "gdbarch_architecture_names: multi-arch unknown");
1903 append_name (&arches, &nr_arches, ap->printable_name);
1908 append_name (&arches, &nr_arches, NULL);
1912 /* Just return all the architectures that BFD knows. Assume that
1913 the legacy architecture framework supports them. */
1914 return bfd_arch_list ();
1919 gdbarch_register (enum bfd_architecture bfd_architecture,
1920 gdbarch_init_ftype *init,
1921 gdbarch_dump_tdep_ftype *dump_tdep)
1923 struct gdbarch_registration **curr;
1924 const struct bfd_arch_info *bfd_arch_info;
1925 /* Check that BFD recognizes this architecture */
1926 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1927 if (bfd_arch_info == NULL)
1929 internal_error (__FILE__, __LINE__,
1930 "gdbarch: Attempt to register unknown architecture (%d)",
1933 /* Check that we haven't seen this architecture before */
1934 for (curr = &gdbarch_registry;
1936 curr = &(*curr)->next)
1938 if (bfd_architecture == (*curr)->bfd_architecture)
1939 internal_error (__FILE__, __LINE__,
1940 "gdbarch: Duplicate registraration of architecture (%s)",
1941 bfd_arch_info->printable_name);
1945 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1946 bfd_arch_info->printable_name,
1949 (*curr) = XMALLOC (struct gdbarch_registration);
1950 (*curr)->bfd_architecture = bfd_architecture;
1951 (*curr)->init = init;
1952 (*curr)->dump_tdep = dump_tdep;
1953 (*curr)->arches = NULL;
1954 (*curr)->next = NULL;
1955 /* When non- multi-arch, install whatever target dump routine we've
1956 been provided - hopefully that routine has been written correctly
1957 and works regardless of multi-arch. */
1958 if (!GDB_MULTI_ARCH && dump_tdep != NULL
1959 && startup_gdbarch.dump_tdep == NULL)
1960 startup_gdbarch.dump_tdep = dump_tdep;
1964 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1965 gdbarch_init_ftype *init)
1967 gdbarch_register (bfd_architecture, init, NULL);
1971 /* Look for an architecture using gdbarch_info. Base search on only
1972 BFD_ARCH_INFO and BYTE_ORDER. */
1974 struct gdbarch_list *
1975 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1976 const struct gdbarch_info *info)
1978 for (; arches != NULL; arches = arches->next)
1980 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1982 if (info->byte_order != arches->gdbarch->byte_order)
1990 /* Update the current architecture. Return ZERO if the update request
1994 gdbarch_update_p (struct gdbarch_info info)
1996 struct gdbarch *new_gdbarch;
1997 struct gdbarch_list **list;
1998 struct gdbarch_registration *rego;
2000 /* Fill in missing parts of the INFO struct using a number of
2001 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2003 /* \`\`(gdb) set architecture ...'' */
2004 if (info.bfd_arch_info == NULL
2005 && !TARGET_ARCHITECTURE_AUTO)
2006 info.bfd_arch_info = TARGET_ARCHITECTURE;
2007 if (info.bfd_arch_info == NULL
2008 && info.abfd != NULL
2009 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2010 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2011 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2012 if (info.bfd_arch_info == NULL)
2013 info.bfd_arch_info = TARGET_ARCHITECTURE;
2015 /* \`\`(gdb) set byte-order ...'' */
2016 if (info.byte_order == 0
2017 && !TARGET_BYTE_ORDER_AUTO)
2018 info.byte_order = TARGET_BYTE_ORDER;
2019 /* From the INFO struct. */
2020 if (info.byte_order == 0
2021 && info.abfd != NULL)
2022 info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
2023 : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN
2025 /* From the current target. */
2026 if (info.byte_order == 0)
2027 info.byte_order = TARGET_BYTE_ORDER;
2029 /* Must have found some sort of architecture. */
2030 gdb_assert (info.bfd_arch_info != NULL);
2034 fprintf_unfiltered (gdb_stdlog,
2035 "gdbarch_update: info.bfd_arch_info %s\n",
2036 (info.bfd_arch_info != NULL
2037 ? info.bfd_arch_info->printable_name
2039 fprintf_unfiltered (gdb_stdlog,
2040 "gdbarch_update: info.byte_order %d (%s)\n",
2042 (info.byte_order == BIG_ENDIAN ? "big"
2043 : info.byte_order == LITTLE_ENDIAN ? "little"
2045 fprintf_unfiltered (gdb_stdlog,
2046 "gdbarch_update: info.abfd 0x%lx\n",
2048 fprintf_unfiltered (gdb_stdlog,
2049 "gdbarch_update: info.tdep_info 0x%lx\n",
2050 (long) info.tdep_info);
2053 /* Find the target that knows about this architecture. */
2054 for (rego = gdbarch_registry;
2057 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2062 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2066 /* Ask the target for a replacement architecture. */
2067 new_gdbarch = rego->init (info, rego->arches);
2069 /* Did the target like it? No. Reject the change. */
2070 if (new_gdbarch == NULL)
2073 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2077 /* Did the architecture change? No. Do nothing. */
2078 if (current_gdbarch == new_gdbarch)
2081 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2083 new_gdbarch->bfd_arch_info->printable_name);
2087 /* Swap all data belonging to the old target out */
2088 swapout_gdbarch_swap (current_gdbarch);
2090 /* Is this a pre-existing architecture? Yes. Swap it in. */
2091 for (list = ®o->arches;
2093 list = &(*list)->next)
2095 if ((*list)->gdbarch == new_gdbarch)
2098 fprintf_unfiltered (gdb_stdlog,
2099 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2101 new_gdbarch->bfd_arch_info->printable_name);
2102 current_gdbarch = new_gdbarch;
2103 swapin_gdbarch_swap (new_gdbarch);
2104 architecture_changed_event ();
2109 /* Append this new architecture to this targets list. */
2110 (*list) = XMALLOC (struct gdbarch_list);
2111 (*list)->next = NULL;
2112 (*list)->gdbarch = new_gdbarch;
2114 /* Switch to this new architecture. Dump it out. */
2115 current_gdbarch = new_gdbarch;
2118 fprintf_unfiltered (gdb_stdlog,
2119 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2121 new_gdbarch->bfd_arch_info->printable_name);
2124 /* Check that the newly installed architecture is valid. Plug in
2125 any post init values. */
2126 new_gdbarch->dump_tdep = rego->dump_tdep;
2127 verify_gdbarch (new_gdbarch);
2129 /* Initialize the per-architecture memory (swap) areas.
2130 CURRENT_GDBARCH must be update before these modules are
2132 init_gdbarch_swap (new_gdbarch);
2134 /* Initialize the per-architecture data-pointer of all parties that
2135 registered an interest in this architecture. CURRENT_GDBARCH
2136 must be updated before these modules are called. */
2137 init_gdbarch_data (new_gdbarch);
2138 architecture_changed_event ();
2141 gdbarch_dump (current_gdbarch, gdb_stdlog);
2149 /* Pointer to the target-dependent disassembly function. */
2150 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2151 disassemble_info tm_print_insn_info;
2154 extern void _initialize_gdbarch (void);
2157 _initialize_gdbarch (void)
2159 struct cmd_list_element *c;
2161 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2162 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2163 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2164 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2165 tm_print_insn_info.print_address_func = dis_asm_print_address;
2167 add_show_from_set (add_set_cmd ("arch",
2170 (char *)&gdbarch_debug,
2171 "Set architecture debugging.\\n\\
2172 When non-zero, architecture debugging is enabled.", &setdebuglist),
2174 c = add_set_cmd ("archdebug",
2177 (char *)&gdbarch_debug,
2178 "Set architecture debugging.\\n\\
2179 When non-zero, architecture debugging is enabled.", &setlist);
2181 deprecate_cmd (c, "set debug arch");
2182 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2188 #../move-if-change new-gdbarch.c gdbarch.c
2189 compare_new gdbarch.c