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 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
388 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
390 v::IEEE_FLOAT:int:ieee_float::::0:0::0:::
392 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
393 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
394 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
395 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0
396 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
397 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
398 # Function for getting target's idea of a frame pointer. FIXME: GDB's
399 # whole scheme for dealing with "frames" and "frame pointers" needs a
401 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
403 M:::void:register_read:int regnum, char *buf:regnum, buf:
404 M:::void:register_write:int regnum, char *buf:regnum, buf:
406 v:2:NUM_REGS:int:num_regs::::0:-1
407 # This macro gives the number of pseudo-registers that live in the
408 # register namespace but do not get fetched or stored on the target.
409 # These pseudo-registers may be aliases for other registers,
410 # combinations of other registers, or they may be computed by GDB.
411 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
412 v:2:SP_REGNUM:int:sp_regnum::::0:-1
413 v:2:FP_REGNUM:int:fp_regnum::::0:-1
414 v:2:PC_REGNUM:int:pc_regnum::::0:-1
415 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
416 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
417 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0
418 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
419 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
420 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
421 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
422 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
423 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
424 # Convert from an sdb register number to an internal gdb register number.
425 # This should be defined in tm.h, if REGISTER_NAMES is not set up
426 # to map one to one onto the sdb register numbers.
427 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
428 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
429 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0
430 v:2:REGISTER_SIZE:int:register_size::::0:-1
431 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
432 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0
433 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_raw_size:0
434 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
435 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_virtual_size:0
436 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
437 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
438 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
439 # MAP a GDB RAW register number onto a simulator register number. See
440 # also include/...-sim.h.
441 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0
442 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
443 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
444 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
446 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
447 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
448 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
449 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
450 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
451 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
452 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
453 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
454 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
455 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
456 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
457 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
458 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
459 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
460 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
461 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
463 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
464 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
465 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
466 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
468 f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
469 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
470 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
471 # This function is called when the value of a pseudo-register needs to
472 # be updated. Typically it will be defined on a per-architecture
474 F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum:
475 # This function is called when the value of a pseudo-register needs to
476 # be set or stored. Typically it will be defined on a
477 # per-architecture basis.
478 F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum:
480 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
481 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
482 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
484 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
485 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
486 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
487 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
488 F:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
489 f:2:POP_FRAME:void:pop_frame:void:-:::0
491 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
492 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
493 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0
494 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
496 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
497 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
499 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
500 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
501 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
502 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
503 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
504 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
505 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
506 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
507 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
509 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
511 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
512 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
513 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
514 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
515 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
516 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
517 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
518 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
519 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
521 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
522 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
523 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
524 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
525 v:2:PARM_BOUNDARY:int:parm_boundary
527 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
528 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
529 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown
530 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
531 # On some machines there are bits in addresses which are not really
532 # part of the address, but are used by the kernel, the hardware, etc.
533 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
534 # we get a "real" address such as one would find in a symbol table.
535 # This is used only for addresses of instructions, and even then I'm
536 # not sure it's used in all contexts. It exists to deal with there
537 # being a few stray bits in the PC which would mislead us, not as some
538 # sort of generic thing to handle alignment or segmentation (it's
539 # possible it should be in TARGET_READ_PC instead).
540 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
541 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
542 # the target needs software single step. An ISA method to implement it.
544 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
545 # using the breakpoint system instead of blatting memory directly (as with rs6000).
547 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
548 # single step. If not, then implement single step using breakpoints.
549 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
550 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
551 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
552 # For SVR4 shared libraries, each call goes through a small piece of
553 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
554 # to nonzero if we are current stopped in one of these.
555 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
556 # A target might have problems with watchpoints as soon as the stack
557 # frame of the current function has been destroyed. This mostly happens
558 # as the first action in a funtion's epilogue. in_function_epilogue_p()
559 # is defined to return a non-zero value if either the given addr is one
560 # instruction after the stack destroying instruction up to the trailing
561 # return instruction or if we can figure out that the stack frame has
562 # already been invalidated regardless of the value of addr. Targets
563 # which don't suffer from that problem could just let this functionality
565 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
566 # Given a vector of command-line arguments, return a newly allocated
567 # string which, when passed to the create_inferior function, will be
568 # parsed (on Unix systems, by the shell) to yield the same vector.
569 # This function should call error() if the argument vector is not
570 # representable for this target or if this target does not support
571 # command-line arguments.
572 # ARGC is the number of elements in the vector.
573 # ARGV is an array of strings, one per argument.
574 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
575 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
582 exec > new-gdbarch.log
583 function_list |
while do_read
586 ${class} ${macro}(${actual})
587 ${returntype} ${function} ($formal)${attrib}
591 eval echo \"\ \ \ \
${r}=\
${${r}}\"
593 # #fallbackdefault=${fallbackdefault}
594 # #valid_p=${valid_p}
596 if class_is_predicate_p
&& fallback_default_p
598 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
602 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
604 echo "Error: postdefault is useless when invalid_p=0" 1>&2
608 if class_is_multiarch_p
610 if class_is_predicate_p
; then :
611 elif test "x${predefault}" = "x"
613 echo "Error: pure multi-arch function must have a predefault" 1>&2
622 compare_new gdbarch.log
628 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
630 /* Dynamic architecture support for GDB, the GNU debugger.
631 Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
633 This file is part of GDB.
635 This program is free software; you can redistribute it and/or modify
636 it under the terms of the GNU General Public License as published by
637 the Free Software Foundation; either version 2 of the License, or
638 (at your option) any later version.
640 This program is distributed in the hope that it will be useful,
641 but WITHOUT ANY WARRANTY; without even the implied warranty of
642 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
643 GNU General Public License for more details.
645 You should have received a copy of the GNU General Public License
646 along with this program; if not, write to the Free Software
647 Foundation, Inc., 59 Temple Place - Suite 330,
648 Boston, MA 02111-1307, USA. */
650 /* This file was created with the aid of \`\`gdbarch.sh''.
652 The Bourne shell script \`\`gdbarch.sh'' creates the files
653 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
654 against the existing \`\`gdbarch.[hc]''. Any differences found
657 If editing this file, please also run gdbarch.sh and merge any
658 changes into that script. Conversely, when making sweeping changes
659 to this file, modifying gdbarch.sh and using its output may prove
675 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
677 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
684 extern struct gdbarch *current_gdbarch;
687 /* If any of the following are defined, the target wasn't correctly
691 #if defined (EXTRA_FRAME_INFO)
692 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
697 #if defined (FRAME_FIND_SAVED_REGS)
698 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
702 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
703 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
710 printf "/* The following are pre-initialized by GDBARCH. */\n"
711 function_list |
while do_read
716 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
717 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
718 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
719 printf "#error \"Non multi-arch definition of ${macro}\"\n"
721 printf "#if GDB_MULTI_ARCH\n"
722 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
723 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
732 printf "/* The following are initialized by the target dependent code. */\n"
733 function_list |
while do_read
735 if [ -n "${comment}" ]
737 echo "${comment}" |
sed \
742 if class_is_multiarch_p
744 if class_is_predicate_p
747 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
750 if class_is_predicate_p
753 printf "#if defined (${macro})\n"
754 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
755 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
756 printf "#if !defined (${macro}_P)\n"
757 printf "#define ${macro}_P() (1)\n"
761 printf "/* Default predicate for non- multi-arch targets. */\n"
762 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
763 printf "#define ${macro}_P() (0)\n"
766 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
767 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro}_P)\n"
768 printf "#error \"Non multi-arch definition of ${macro}\"\n"
770 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n"
771 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
775 if class_is_variable_p
777 if fallback_default_p || class_is_predicate_p
780 printf "/* Default (value) for non- multi-arch platforms. */\n"
781 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
782 echo "#define ${macro} (${fallbackdefault})" \
783 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
787 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
788 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
789 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
790 printf "#error \"Non multi-arch definition of ${macro}\"\n"
792 printf "#if GDB_MULTI_ARCH\n"
793 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
794 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
798 if class_is_function_p
800 if class_is_multiarch_p
; then :
801 elif fallback_default_p || class_is_predicate_p
804 printf "/* Default (function) for non- multi-arch platforms. */\n"
805 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
806 if [ "x${fallbackdefault}" = "x0" ]
808 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
810 # FIXME: Should be passing current_gdbarch through!
811 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
812 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
817 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
819 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
820 elif class_is_multiarch_p
822 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
824 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
826 if [ "x${formal}" = "xvoid" ]
828 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
830 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
832 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
833 if class_is_multiarch_p
; then :
835 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
836 printf "#error \"Non multi-arch definition of ${macro}\"\n"
838 printf "#if GDB_MULTI_ARCH\n"
839 printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n"
840 if [ "x${actual}" = "x" ]
842 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
843 elif [ "x${actual}" = "x-" ]
845 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
847 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
858 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
861 /* Mechanism for co-ordinating the selection of a specific
864 GDB targets (*-tdep.c) can register an interest in a specific
865 architecture. Other GDB components can register a need to maintain
866 per-architecture data.
868 The mechanisms below ensures that there is only a loose connection
869 between the set-architecture command and the various GDB
870 components. Each component can independently register their need
871 to maintain architecture specific data with gdbarch.
875 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
878 The more traditional mega-struct containing architecture specific
879 data for all the various GDB components was also considered. Since
880 GDB is built from a variable number of (fairly independent)
881 components it was determined that the global aproach was not
885 /* Register a new architectural family with GDB.
887 Register support for the specified ARCHITECTURE with GDB. When
888 gdbarch determines that the specified architecture has been
889 selected, the corresponding INIT function is called.
893 The INIT function takes two parameters: INFO which contains the
894 information available to gdbarch about the (possibly new)
895 architecture; ARCHES which is a list of the previously created
896 \`\`struct gdbarch'' for this architecture.
898 The INIT function parameter INFO shall, as far as possible, be
899 pre-initialized with information obtained from INFO.ABFD or
900 previously selected architecture (if similar). INIT shall ensure
901 that the INFO.BYTE_ORDER is non-zero.
903 The INIT function shall return any of: NULL - indicating that it
904 doesn't recognize the selected architecture; an existing \`\`struct
905 gdbarch'' from the ARCHES list - indicating that the new
906 architecture is just a synonym for an earlier architecture (see
907 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
908 - that describes the selected architecture (see gdbarch_alloc()).
910 The DUMP_TDEP function shall print out all target specific values.
911 Care should be taken to ensure that the function works in both the
912 multi-arch and non- multi-arch cases. */
916 struct gdbarch *gdbarch;
917 struct gdbarch_list *next;
922 /* Use default: NULL (ZERO). */
923 const struct bfd_arch_info *bfd_arch_info;
925 /* Use default: 0 (ZERO). */
928 /* Use default: NULL (ZERO). */
931 /* Use default: NULL (ZERO). */
932 struct gdbarch_tdep_info *tdep_info;
935 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
936 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
938 /* DEPRECATED - use gdbarch_register() */
939 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
941 extern void gdbarch_register (enum bfd_architecture architecture,
942 gdbarch_init_ftype *,
943 gdbarch_dump_tdep_ftype *);
946 /* Return a freshly allocated, NULL terminated, array of the valid
947 architecture names. Since architectures are registered during the
948 _initialize phase this function only returns useful information
949 once initialization has been completed. */
951 extern const char **gdbarch_printable_names (void);
954 /* Helper function. Search the list of ARCHES for a GDBARCH that
955 matches the information provided by INFO. */
957 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
960 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
961 basic initialization using values obtained from the INFO andTDEP
962 parameters. set_gdbarch_*() functions are called to complete the
963 initialization of the object. */
965 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
968 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
969 It is assumed that the caller freeds the \`\`struct
972 extern void gdbarch_free (struct gdbarch *);
975 /* Helper function. Force an update of the current architecture.
977 The actual architecture selected is determined by INFO, \`\`(gdb) set
978 architecture'' et.al., the existing architecture and BFD's default
979 architecture. INFO should be initialized to zero and then selected
980 fields should be updated.
982 Returns non-zero if the update succeeds */
984 extern int gdbarch_update_p (struct gdbarch_info info);
988 /* Register per-architecture data-pointer.
990 Reserve space for a per-architecture data-pointer. An identifier
991 for the reserved data-pointer is returned. That identifer should
992 be saved in a local static variable.
994 The per-architecture data-pointer can be initialized in one of two
995 ways: The value can be set explicitly using a call to
996 set_gdbarch_data(); the value can be set implicitly using the value
997 returned by a non-NULL INIT() callback. INIT(), when non-NULL is
998 called after the basic architecture vector has been created.
1000 When a previously created architecture is re-selected, the
1001 per-architecture data-pointer for that previous architecture is
1002 restored. INIT() is not called.
1004 During initialization, multiple assignments of the data-pointer are
1005 allowed, non-NULL values are deleted by calling FREE(). If the
1006 architecture is deleted using gdbarch_free() all non-NULL data
1007 pointers are also deleted using FREE().
1009 Multiple registrarants for any architecture are allowed (and
1010 strongly encouraged). */
1012 struct gdbarch_data;
1014 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1015 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1017 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1018 gdbarch_data_free_ftype *free);
1019 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1020 struct gdbarch_data *data,
1023 extern void *gdbarch_data (struct gdbarch_data*);
1026 /* Register per-architecture memory region.
1028 Provide a memory-region swap mechanism. Per-architecture memory
1029 region are created. These memory regions are swapped whenever the
1030 architecture is changed. For a new architecture, the memory region
1031 is initialized with zero (0) and the INIT function is called.
1033 Memory regions are swapped / initialized in the order that they are
1034 registered. NULL DATA and/or INIT values can be specified.
1036 New code should use register_gdbarch_data(). */
1038 typedef void (gdbarch_swap_ftype) (void);
1039 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1040 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1044 /* The target-system-dependent byte order is dynamic */
1046 /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness
1047 is selectable at runtime. The user can use the \`\`set endian''
1048 command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when
1049 target_byte_order should be auto-detected (from the program image
1053 /* Multi-arch GDB is always bi-endian. */
1054 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1057 #ifndef TARGET_BYTE_ORDER_SELECTABLE_P
1058 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE
1059 when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */
1060 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1061 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
1063 #define TARGET_BYTE_ORDER_SELECTABLE_P 0
1067 extern int target_byte_order;
1068 #ifdef TARGET_BYTE_ORDER_SELECTABLE
1069 /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE
1070 and expect defs.h to re-define TARGET_BYTE_ORDER. */
1071 #undef TARGET_BYTE_ORDER
1073 #ifndef TARGET_BYTE_ORDER
1074 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1077 extern int target_byte_order_auto;
1078 #ifndef TARGET_BYTE_ORDER_AUTO
1079 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1084 /* The target-system-dependent BFD architecture is dynamic */
1086 extern int target_architecture_auto;
1087 #ifndef TARGET_ARCHITECTURE_AUTO
1088 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1091 extern const struct bfd_arch_info *target_architecture;
1092 #ifndef TARGET_ARCHITECTURE
1093 #define TARGET_ARCHITECTURE (target_architecture + 0)
1097 /* The target-system-dependent disassembler is semi-dynamic */
1099 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1100 unsigned int len, disassemble_info *info);
1102 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1103 disassemble_info *info);
1105 extern void dis_asm_print_address (bfd_vma addr,
1106 disassemble_info *info);
1108 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1109 extern disassemble_info tm_print_insn_info;
1110 #ifndef TARGET_PRINT_INSN_INFO
1111 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1116 /* Set the dynamic target-system-dependent parameters (architecture,
1117 byte-order, ...) using information found in the BFD */
1119 extern void set_gdbarch_from_file (bfd *);
1122 /* Initialize the current architecture to the "first" one we find on
1125 extern void initialize_current_architecture (void);
1127 /* For non-multiarched targets, do any initialization of the default
1128 gdbarch object necessary after the _initialize_MODULE functions
1130 extern void initialize_non_multiarch ();
1132 /* gdbarch trace variable */
1133 extern int gdbarch_debug;
1135 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1140 #../move-if-change new-gdbarch.h gdbarch.h
1141 compare_new gdbarch.h
1148 exec > new-gdbarch.c
1153 #include "arch-utils.h"
1157 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1159 /* Just include everything in sight so that the every old definition
1160 of macro is visible. */
1161 #include "gdb_string.h"
1165 #include "inferior.h"
1166 #include "breakpoint.h"
1167 #include "gdb_wait.h"
1168 #include "gdbcore.h"
1171 #include "gdbthread.h"
1172 #include "annotate.h"
1173 #include "symfile.h" /* for overlay functions */
1174 #include "value.h" /* For old tm.h/nm.h macros. */
1178 #include "floatformat.h"
1180 #include "gdb_assert.h"
1181 #include "gdb-events.h"
1183 /* Static function declarations */
1185 static void verify_gdbarch (struct gdbarch *gdbarch);
1186 static void alloc_gdbarch_data (struct gdbarch *);
1187 static void init_gdbarch_data (struct gdbarch *);
1188 static void free_gdbarch_data (struct gdbarch *);
1189 static void init_gdbarch_swap (struct gdbarch *);
1190 static void swapout_gdbarch_swap (struct gdbarch *);
1191 static void swapin_gdbarch_swap (struct gdbarch *);
1193 /* Convenience macro for allocting typesafe memory. */
1196 #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
1200 /* Non-zero if we want to trace architecture code. */
1202 #ifndef GDBARCH_DEBUG
1203 #define GDBARCH_DEBUG 0
1205 int gdbarch_debug = GDBARCH_DEBUG;
1209 # gdbarch open the gdbarch object
1211 printf "/* Maintain the struct gdbarch object */\n"
1213 printf "struct gdbarch\n"
1215 printf " /* basic architectural information */\n"
1216 function_list |
while do_read
1220 printf " ${returntype} ${function};\n"
1224 printf " /* target specific vector. */\n"
1225 printf " struct gdbarch_tdep *tdep;\n"
1226 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1228 printf " /* per-architecture data-pointers */\n"
1229 printf " unsigned nr_data;\n"
1230 printf " void **data;\n"
1232 printf " /* per-architecture swap-regions */\n"
1233 printf " struct gdbarch_swap *swap;\n"
1236 /* Multi-arch values.
1238 When extending this structure you must:
1240 Add the field below.
1242 Declare set/get functions and define the corresponding
1245 gdbarch_alloc(): If zero/NULL is not a suitable default,
1246 initialize the new field.
1248 verify_gdbarch(): Confirm that the target updated the field
1251 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1254 \`\`startup_gdbarch()'': Append an initial value to the static
1255 variable (base values on the host's c-type system).
1257 get_gdbarch(): Implement the set/get functions (probably using
1258 the macro's as shortcuts).
1263 function_list |
while do_read
1265 if class_is_variable_p
1267 printf " ${returntype} ${function};\n"
1268 elif class_is_function_p
1270 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1275 # A pre-initialized vector
1279 /* The default architecture uses host values (for want of a better
1283 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1285 printf "struct gdbarch startup_gdbarch =\n"
1287 printf " /* basic architecture information */\n"
1288 function_list |
while do_read
1292 printf " ${staticdefault},\n"
1296 /* target specific vector and its dump routine */
1298 /*per-architecture data-pointers and swap regions */
1300 /* Multi-arch values */
1302 function_list |
while do_read
1304 if class_is_function_p || class_is_variable_p
1306 printf " ${staticdefault},\n"
1310 /* startup_gdbarch() */
1313 struct gdbarch *current_gdbarch = &startup_gdbarch;
1315 /* Do any initialization needed for a non-multiarch configuration
1316 after the _initialize_MODULE functions have been run. */
1318 initialize_non_multiarch ()
1320 alloc_gdbarch_data (&startup_gdbarch);
1321 init_gdbarch_data (&startup_gdbarch);
1325 # Create a new gdbarch struct
1329 /* Create a new \`\`struct gdbarch'' based on information provided by
1330 \`\`struct gdbarch_info''. */
1335 gdbarch_alloc (const struct gdbarch_info *info,
1336 struct gdbarch_tdep *tdep)
1338 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1339 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1340 the current local architecture and not the previous global
1341 architecture. This ensures that the new architectures initial
1342 values are not influenced by the previous architecture. Once
1343 everything is parameterised with gdbarch, this will go away. */
1344 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1345 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1347 alloc_gdbarch_data (current_gdbarch);
1349 current_gdbarch->tdep = tdep;
1352 function_list |
while do_read
1356 printf " current_gdbarch->${function} = info->${function};\n"
1360 printf " /* Force the explicit initialization of these. */\n"
1361 function_list |
while do_read
1363 if class_is_function_p || class_is_variable_p
1365 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1367 printf " current_gdbarch->${function} = ${predefault};\n"
1372 /* gdbarch_alloc() */
1374 return current_gdbarch;
1378 # Free a gdbarch struct.
1382 /* Free a gdbarch struct. This should never happen in normal
1383 operation --- once you've created a gdbarch, you keep it around.
1384 However, if an architecture's init function encounters an error
1385 building the structure, it may need to clean up a partially
1386 constructed gdbarch. */
1389 gdbarch_free (struct gdbarch *arch)
1391 gdb_assert (arch != NULL);
1392 free_gdbarch_data (arch);
1397 # verify a new architecture
1400 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1404 verify_gdbarch (struct gdbarch *gdbarch)
1406 struct ui_file *log;
1407 struct cleanup *cleanups;
1410 /* Only perform sanity checks on a multi-arch target. */
1411 if (!GDB_MULTI_ARCH)
1413 log = mem_fileopen ();
1414 cleanups = make_cleanup_ui_file_delete (log);
1416 if (gdbarch->byte_order == 0)
1417 fprintf_unfiltered (log, "\n\tbyte-order");
1418 if (gdbarch->bfd_arch_info == NULL)
1419 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1420 /* Check those that need to be defined for the given multi-arch level. */
1422 function_list |
while do_read
1424 if class_is_function_p || class_is_variable_p
1426 if [ "x${invalid_p}" = "x0" ]
1428 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1429 elif class_is_predicate_p
1431 printf " /* Skip verify of ${function}, has predicate */\n"
1432 # FIXME: See do_read for potential simplification
1433 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1435 printf " if (${invalid_p})\n"
1436 printf " gdbarch->${function} = ${postdefault};\n"
1437 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1439 printf " if (gdbarch->${function} == ${predefault})\n"
1440 printf " gdbarch->${function} = ${postdefault};\n"
1441 elif [ -n "${postdefault}" ]
1443 printf " if (gdbarch->${function} == 0)\n"
1444 printf " gdbarch->${function} = ${postdefault};\n"
1445 elif [ -n "${invalid_p}" ]
1447 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1448 printf " && (${invalid_p}))\n"
1449 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1450 elif [ -n "${predefault}" ]
1452 printf " if ((GDB_MULTI_ARCH >= ${level})\n"
1453 printf " && (gdbarch->${function} == ${predefault}))\n"
1454 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1459 buf = ui_file_xstrdup (log, &dummy);
1460 make_cleanup (xfree, buf);
1461 if (strlen (buf) > 0)
1462 internal_error (__FILE__, __LINE__,
1463 "verify_gdbarch: the following are invalid ...%s",
1465 do_cleanups (cleanups);
1469 # dump the structure
1473 /* Print out the details of the current architecture. */
1475 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1476 just happens to match the global variable \`\`current_gdbarch''. That
1477 way macros refering to that variable get the local and not the global
1478 version - ulgh. Once everything is parameterised with gdbarch, this
1482 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1484 fprintf_unfiltered (file,
1485 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1488 function_list |
sort -t: +2 |
while do_read
1490 # multiarch functions don't have macros.
1491 if class_is_multiarch_p
1493 printf " if (GDB_MULTI_ARCH)\n"
1494 printf " fprintf_unfiltered (file,\n"
1495 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1496 printf " (long) current_gdbarch->${function});\n"
1499 printf "#ifdef ${macro}\n"
1500 if [ "x${returntype}" = "xvoid" ]
1502 printf "#if GDB_MULTI_ARCH\n"
1503 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1505 if class_is_function_p
1507 printf " fprintf_unfiltered (file,\n"
1508 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1509 printf " \"${macro}(${actual})\",\n"
1510 printf " XSTRING (${macro} (${actual})));\n"
1512 printf " fprintf_unfiltered (file,\n"
1513 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1514 printf " XSTRING (${macro}));\n"
1516 if [ "x${returntype}" = "xvoid" ]
1520 if [ "x${print_p}" = "x()" ]
1522 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1523 elif [ "x${print_p}" = "x0" ]
1525 printf " /* skip print of ${macro}, print_p == 0. */\n"
1526 elif [ -n "${print_p}" ]
1528 printf " if (${print_p})\n"
1529 printf " fprintf_unfiltered (file,\n"
1530 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1531 printf " ${print});\n"
1532 elif class_is_function_p
1534 printf " if (GDB_MULTI_ARCH)\n"
1535 printf " fprintf_unfiltered (file,\n"
1536 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1537 printf " (long) current_gdbarch->${function}\n"
1538 printf " /*${macro} ()*/);\n"
1540 printf " fprintf_unfiltered (file,\n"
1541 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1542 printf " ${print});\n"
1547 if (current_gdbarch->dump_tdep != NULL)
1548 current_gdbarch->dump_tdep (current_gdbarch, file);
1556 struct gdbarch_tdep *
1557 gdbarch_tdep (struct gdbarch *gdbarch)
1559 if (gdbarch_debug >= 2)
1560 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1561 return gdbarch->tdep;
1565 function_list |
while do_read
1567 if class_is_predicate_p
1571 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1573 if [ -n "${valid_p}" ]
1575 printf " return ${valid_p};\n"
1577 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1581 if class_is_function_p
1584 printf "${returntype}\n"
1585 if [ "x${formal}" = "xvoid" ]
1587 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1589 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1592 printf " if (gdbarch->${function} == 0)\n"
1593 printf " internal_error (__FILE__, __LINE__,\n"
1594 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1595 printf " if (gdbarch_debug >= 2)\n"
1596 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1597 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1599 if class_is_multiarch_p
1606 if class_is_multiarch_p
1608 params
="gdbarch, ${actual}"
1613 if [ "x${returntype}" = "xvoid" ]
1615 printf " gdbarch->${function} (${params});\n"
1617 printf " return gdbarch->${function} (${params});\n"
1622 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1623 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1625 printf " gdbarch->${function} = ${function};\n"
1627 elif class_is_variable_p
1630 printf "${returntype}\n"
1631 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1633 if [ "x${invalid_p}" = "x0" ]
1635 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1636 elif [ -n "${invalid_p}" ]
1638 printf " if (${invalid_p})\n"
1639 printf " internal_error (__FILE__, __LINE__,\n"
1640 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1641 elif [ -n "${predefault}" ]
1643 printf " if (gdbarch->${function} == ${predefault})\n"
1644 printf " internal_error (__FILE__, __LINE__,\n"
1645 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1647 printf " if (gdbarch_debug >= 2)\n"
1648 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1649 printf " return gdbarch->${function};\n"
1653 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1654 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1656 printf " gdbarch->${function} = ${function};\n"
1658 elif class_is_info_p
1661 printf "${returntype}\n"
1662 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1664 printf " if (gdbarch_debug >= 2)\n"
1665 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1666 printf " return gdbarch->${function};\n"
1671 # All the trailing guff
1675 /* Keep a registry of per-architecture data-pointers required by GDB
1681 gdbarch_data_init_ftype *init;
1682 gdbarch_data_free_ftype *free;
1685 struct gdbarch_data_registration
1687 struct gdbarch_data *data;
1688 struct gdbarch_data_registration *next;
1691 struct gdbarch_data_registry
1694 struct gdbarch_data_registration *registrations;
1697 struct gdbarch_data_registry gdbarch_data_registry =
1702 struct gdbarch_data *
1703 register_gdbarch_data (gdbarch_data_init_ftype *init,
1704 gdbarch_data_free_ftype *free)
1706 struct gdbarch_data_registration **curr;
1707 for (curr = &gdbarch_data_registry.registrations;
1709 curr = &(*curr)->next);
1710 (*curr) = XMALLOC (struct gdbarch_data_registration);
1711 (*curr)->next = NULL;
1712 (*curr)->data = XMALLOC (struct gdbarch_data);
1713 (*curr)->data->index = gdbarch_data_registry.nr++;
1714 (*curr)->data->init = init;
1715 (*curr)->data->free = free;
1716 return (*curr)->data;
1720 /* Walk through all the registered users initializing each in turn. */
1723 init_gdbarch_data (struct gdbarch *gdbarch)
1725 struct gdbarch_data_registration *rego;
1726 for (rego = gdbarch_data_registry.registrations;
1730 struct gdbarch_data *data = rego->data;
1731 gdb_assert (data->index < gdbarch->nr_data);
1732 if (data->init != NULL)
1734 void *pointer = data->init (gdbarch);
1735 set_gdbarch_data (gdbarch, data, pointer);
1740 /* Create/delete the gdbarch data vector. */
1743 alloc_gdbarch_data (struct gdbarch *gdbarch)
1745 gdb_assert (gdbarch->data == NULL);
1746 gdbarch->nr_data = gdbarch_data_registry.nr;
1747 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1751 free_gdbarch_data (struct gdbarch *gdbarch)
1753 struct gdbarch_data_registration *rego;
1754 gdb_assert (gdbarch->data != NULL);
1755 for (rego = gdbarch_data_registry.registrations;
1759 struct gdbarch_data *data = rego->data;
1760 gdb_assert (data->index < gdbarch->nr_data);
1761 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1763 data->free (gdbarch, gdbarch->data[data->index]);
1764 gdbarch->data[data->index] = NULL;
1767 xfree (gdbarch->data);
1768 gdbarch->data = NULL;
1772 /* Initialize the current value of thee specified per-architecture
1776 set_gdbarch_data (struct gdbarch *gdbarch,
1777 struct gdbarch_data *data,
1780 gdb_assert (data->index < gdbarch->nr_data);
1781 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1782 data->free (gdbarch, gdbarch->data[data->index]);
1783 gdbarch->data[data->index] = pointer;
1786 /* Return the current value of the specified per-architecture
1790 gdbarch_data (struct gdbarch_data *data)
1792 gdb_assert (data->index < current_gdbarch->nr_data);
1793 return current_gdbarch->data[data->index];
1798 /* Keep a registry of swapped data required by GDB modules. */
1803 struct gdbarch_swap_registration *source;
1804 struct gdbarch_swap *next;
1807 struct gdbarch_swap_registration
1810 unsigned long sizeof_data;
1811 gdbarch_swap_ftype *init;
1812 struct gdbarch_swap_registration *next;
1815 struct gdbarch_swap_registry
1818 struct gdbarch_swap_registration *registrations;
1821 struct gdbarch_swap_registry gdbarch_swap_registry =
1827 register_gdbarch_swap (void *data,
1828 unsigned long sizeof_data,
1829 gdbarch_swap_ftype *init)
1831 struct gdbarch_swap_registration **rego;
1832 for (rego = &gdbarch_swap_registry.registrations;
1834 rego = &(*rego)->next);
1835 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1836 (*rego)->next = NULL;
1837 (*rego)->init = init;
1838 (*rego)->data = data;
1839 (*rego)->sizeof_data = sizeof_data;
1844 init_gdbarch_swap (struct gdbarch *gdbarch)
1846 struct gdbarch_swap_registration *rego;
1847 struct gdbarch_swap **curr = &gdbarch->swap;
1848 for (rego = gdbarch_swap_registry.registrations;
1852 if (rego->data != NULL)
1854 (*curr) = XMALLOC (struct gdbarch_swap);
1855 (*curr)->source = rego;
1856 (*curr)->swap = xmalloc (rego->sizeof_data);
1857 (*curr)->next = NULL;
1858 memset (rego->data, 0, rego->sizeof_data);
1859 curr = &(*curr)->next;
1861 if (rego->init != NULL)
1867 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1869 struct gdbarch_swap *curr;
1870 for (curr = gdbarch->swap;
1873 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1877 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1879 struct gdbarch_swap *curr;
1880 for (curr = gdbarch->swap;
1883 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1887 /* Keep a registry of the architectures known by GDB. */
1889 struct gdbarch_registration
1891 enum bfd_architecture bfd_architecture;
1892 gdbarch_init_ftype *init;
1893 gdbarch_dump_tdep_ftype *dump_tdep;
1894 struct gdbarch_list *arches;
1895 struct gdbarch_registration *next;
1898 static struct gdbarch_registration *gdbarch_registry = NULL;
1901 append_name (const char ***buf, int *nr, const char *name)
1903 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1909 gdbarch_printable_names (void)
1913 /* Accumulate a list of names based on the registed list of
1915 enum bfd_architecture a;
1917 const char **arches = NULL;
1918 struct gdbarch_registration *rego;
1919 for (rego = gdbarch_registry;
1923 const struct bfd_arch_info *ap;
1924 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1926 internal_error (__FILE__, __LINE__,
1927 "gdbarch_architecture_names: multi-arch unknown");
1930 append_name (&arches, &nr_arches, ap->printable_name);
1935 append_name (&arches, &nr_arches, NULL);
1939 /* Just return all the architectures that BFD knows. Assume that
1940 the legacy architecture framework supports them. */
1941 return bfd_arch_list ();
1946 gdbarch_register (enum bfd_architecture bfd_architecture,
1947 gdbarch_init_ftype *init,
1948 gdbarch_dump_tdep_ftype *dump_tdep)
1950 struct gdbarch_registration **curr;
1951 const struct bfd_arch_info *bfd_arch_info;
1952 /* Check that BFD recognizes this architecture */
1953 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1954 if (bfd_arch_info == NULL)
1956 internal_error (__FILE__, __LINE__,
1957 "gdbarch: Attempt to register unknown architecture (%d)",
1960 /* Check that we haven't seen this architecture before */
1961 for (curr = &gdbarch_registry;
1963 curr = &(*curr)->next)
1965 if (bfd_architecture == (*curr)->bfd_architecture)
1966 internal_error (__FILE__, __LINE__,
1967 "gdbarch: Duplicate registraration of architecture (%s)",
1968 bfd_arch_info->printable_name);
1972 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1973 bfd_arch_info->printable_name,
1976 (*curr) = XMALLOC (struct gdbarch_registration);
1977 (*curr)->bfd_architecture = bfd_architecture;
1978 (*curr)->init = init;
1979 (*curr)->dump_tdep = dump_tdep;
1980 (*curr)->arches = NULL;
1981 (*curr)->next = NULL;
1982 /* When non- multi-arch, install whatever target dump routine we've
1983 been provided - hopefully that routine has been written correctly
1984 and works regardless of multi-arch. */
1985 if (!GDB_MULTI_ARCH && dump_tdep != NULL
1986 && startup_gdbarch.dump_tdep == NULL)
1987 startup_gdbarch.dump_tdep = dump_tdep;
1991 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1992 gdbarch_init_ftype *init)
1994 gdbarch_register (bfd_architecture, init, NULL);
1998 /* Look for an architecture using gdbarch_info. Base search on only
1999 BFD_ARCH_INFO and BYTE_ORDER. */
2001 struct gdbarch_list *
2002 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2003 const struct gdbarch_info *info)
2005 for (; arches != NULL; arches = arches->next)
2007 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2009 if (info->byte_order != arches->gdbarch->byte_order)
2017 /* Update the current architecture. Return ZERO if the update request
2021 gdbarch_update_p (struct gdbarch_info info)
2023 struct gdbarch *new_gdbarch;
2024 struct gdbarch_list **list;
2025 struct gdbarch_registration *rego;
2027 /* Fill in missing parts of the INFO struct using a number of
2028 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2030 /* \`\`(gdb) set architecture ...'' */
2031 if (info.bfd_arch_info == NULL
2032 && !TARGET_ARCHITECTURE_AUTO)
2033 info.bfd_arch_info = TARGET_ARCHITECTURE;
2034 if (info.bfd_arch_info == NULL
2035 && info.abfd != NULL
2036 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2037 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2038 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2039 if (info.bfd_arch_info == NULL)
2040 info.bfd_arch_info = TARGET_ARCHITECTURE;
2042 /* \`\`(gdb) set byte-order ...'' */
2043 if (info.byte_order == 0
2044 && !TARGET_BYTE_ORDER_AUTO)
2045 info.byte_order = TARGET_BYTE_ORDER;
2046 /* From the INFO struct. */
2047 if (info.byte_order == 0
2048 && info.abfd != NULL)
2049 info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN
2050 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2052 /* From the current target. */
2053 if (info.byte_order == 0)
2054 info.byte_order = TARGET_BYTE_ORDER;
2056 /* Must have found some sort of architecture. */
2057 gdb_assert (info.bfd_arch_info != NULL);
2061 fprintf_unfiltered (gdb_stdlog,
2062 "gdbarch_update: info.bfd_arch_info %s\n",
2063 (info.bfd_arch_info != NULL
2064 ? info.bfd_arch_info->printable_name
2066 fprintf_unfiltered (gdb_stdlog,
2067 "gdbarch_update: info.byte_order %d (%s)\n",
2069 (info.byte_order == BIG_ENDIAN ? "big"
2070 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2072 fprintf_unfiltered (gdb_stdlog,
2073 "gdbarch_update: info.abfd 0x%lx\n",
2075 fprintf_unfiltered (gdb_stdlog,
2076 "gdbarch_update: info.tdep_info 0x%lx\n",
2077 (long) info.tdep_info);
2080 /* Find the target that knows about this architecture. */
2081 for (rego = gdbarch_registry;
2084 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2089 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2093 /* Ask the target for a replacement architecture. */
2094 new_gdbarch = rego->init (info, rego->arches);
2096 /* Did the target like it? No. Reject the change. */
2097 if (new_gdbarch == NULL)
2100 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2104 /* Did the architecture change? No. Do nothing. */
2105 if (current_gdbarch == new_gdbarch)
2108 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2110 new_gdbarch->bfd_arch_info->printable_name);
2114 /* Swap all data belonging to the old target out */
2115 swapout_gdbarch_swap (current_gdbarch);
2117 /* Is this a pre-existing architecture? Yes. Swap it in. */
2118 for (list = ®o->arches;
2120 list = &(*list)->next)
2122 if ((*list)->gdbarch == new_gdbarch)
2125 fprintf_unfiltered (gdb_stdlog,
2126 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n",
2128 new_gdbarch->bfd_arch_info->printable_name);
2129 current_gdbarch = new_gdbarch;
2130 swapin_gdbarch_swap (new_gdbarch);
2131 architecture_changed_event ();
2136 /* Append this new architecture to this targets list. */
2137 (*list) = XMALLOC (struct gdbarch_list);
2138 (*list)->next = NULL;
2139 (*list)->gdbarch = new_gdbarch;
2141 /* Switch to this new architecture. Dump it out. */
2142 current_gdbarch = new_gdbarch;
2145 fprintf_unfiltered (gdb_stdlog,
2146 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2148 new_gdbarch->bfd_arch_info->printable_name);
2151 /* Check that the newly installed architecture is valid. Plug in
2152 any post init values. */
2153 new_gdbarch->dump_tdep = rego->dump_tdep;
2154 verify_gdbarch (new_gdbarch);
2156 /* Initialize the per-architecture memory (swap) areas.
2157 CURRENT_GDBARCH must be update before these modules are
2159 init_gdbarch_swap (new_gdbarch);
2161 /* Initialize the per-architecture data-pointer of all parties that
2162 registered an interest in this architecture. CURRENT_GDBARCH
2163 must be updated before these modules are called. */
2164 init_gdbarch_data (new_gdbarch);
2165 architecture_changed_event ();
2168 gdbarch_dump (current_gdbarch, gdb_stdlog);
2176 /* Pointer to the target-dependent disassembly function. */
2177 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2178 disassemble_info tm_print_insn_info;
2181 extern void _initialize_gdbarch (void);
2184 _initialize_gdbarch (void)
2186 struct cmd_list_element *c;
2188 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2189 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2190 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2191 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2192 tm_print_insn_info.print_address_func = dis_asm_print_address;
2194 add_show_from_set (add_set_cmd ("arch",
2197 (char *)&gdbarch_debug,
2198 "Set architecture debugging.\\n\\
2199 When non-zero, architecture debugging is enabled.", &setdebuglist),
2201 c = add_set_cmd ("archdebug",
2204 (char *)&gdbarch_debug,
2205 "Set architecture debugging.\\n\\
2206 When non-zero, architecture debugging is enabled.", &setlist);
2208 deprecate_cmd (c, "set debug arch");
2209 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2215 #../move-if-change new-gdbarch.c gdbarch.c
2216 compare_new gdbarch.c