3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
6 # This file is part of GDB.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 # Make certain that the script is running in an internationalized
25 LC_ALL
=c
; export LC_ALL
33 echo "${file} missing? cp new-${file} ${file}" 1>&2
34 elif diff -u ${file} new-
${file}
36 echo "${file} unchanged" 1>&2
38 echo "${file} has changed? cp new-${file} ${file}" 1>&2
43 # Format of the input table
44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
52 if test "${line}" = ""
55 elif test "${line}" = "#" -a "${comment}" = ""
58 elif expr "${line}" : "#" > /dev
/null
64 # The semantics of IFS varies between different SH's. Some
65 # treat ``::' as three fields while some treat it as just too.
66 # Work around this by eliminating ``::'' ....
67 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
69 OFS
="${IFS}" ; IFS
="[:]"
70 eval read ${read} <<EOF
75 # .... and then going back through each field and strip out those
76 # that ended up with just that space character.
79 if eval test \"\
${${r}}\" = \"\
\"
86 1 ) gt_level
=">= GDB_MULTI_ARCH_PARTIAL" ;;
87 2 ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
88 "" ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
89 * ) error
"Error: bad level for ${function}" 1>&2 ; kill $$
; exit 1 ;;
93 m
) staticdefault
="${predefault}" ;;
94 M
) staticdefault
="0" ;;
95 * ) test "${staticdefault}" || staticdefault
=0 ;;
98 # come up with a format, use a few guesses for variables
99 case ":${class}:${fmt}:${print}:" in
101 if [ "${returntype}" = int
]
105 elif [ "${returntype}" = long
]
112 test "${fmt}" ||
fmt="%ld"
113 test "${print}" || print
="(long) ${macro}"
117 case "${invalid_p}" in
119 if test -n "${predefault}"
121 #invalid_p="gdbarch->${function} == ${predefault}"
122 predicate
="gdbarch->${function} != ${predefault}"
123 elif class_is_variable_p
125 predicate
="gdbarch->${function} != 0"
126 elif class_is_function_p
128 predicate
="gdbarch->${function} != NULL"
132 echo "Predicate function ${function} with invalid_p." 1>&2
139 # PREDEFAULT is a valid fallback definition of MEMBER when
140 # multi-arch is not enabled. This ensures that the
141 # default value, when multi-arch is the same as the
142 # default value when not multi-arch. POSTDEFAULT is
143 # always a valid definition of MEMBER as this again
144 # ensures consistency.
146 if [ -n "${postdefault}" ]
148 fallbackdefault
="${postdefault}"
149 elif [ -n "${predefault}" ]
151 fallbackdefault
="${predefault}"
156 #NOT YET: See gdbarch.log for basic verification of
171 fallback_default_p
()
173 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
174 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
177 class_is_variable_p
()
185 class_is_function_p
()
188 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
193 class_is_multiarch_p
()
201 class_is_predicate_p
()
204 *F
* |
*V
* |
*M
* ) true
;;
218 # dump out/verify the doco
228 # F -> function + predicate
229 # hiding a function + predicate to test function validity
232 # V -> variable + predicate
233 # hiding a variable + predicate to test variables validity
235 # hiding something from the ``struct info'' object
236 # m -> multi-arch function
237 # hiding a multi-arch function (parameterised with the architecture)
238 # M -> multi-arch function + predicate
239 # hiding a multi-arch function + predicate to test function validity
243 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
244 # LEVEL is a predicate on checking that a given method is
245 # initialized (using INVALID_P).
249 # The name of the MACRO that this method is to be accessed by.
253 # For functions, the return type; for variables, the data type
257 # For functions, the member function name; for variables, the
258 # variable name. Member function names are always prefixed with
259 # ``gdbarch_'' for name-space purity.
263 # The formal argument list. It is assumed that the formal
264 # argument list includes the actual name of each list element.
265 # A function with no arguments shall have ``void'' as the
266 # formal argument list.
270 # The list of actual arguments. The arguments specified shall
271 # match the FORMAL list given above. Functions with out
272 # arguments leave this blank.
276 # Any GCC attributes that should be attached to the function
277 # declaration. At present this field is unused.
281 # To help with the GDB startup a static gdbarch object is
282 # created. STATICDEFAULT is the value to insert into that
283 # static gdbarch object. Since this a static object only
284 # simple expressions can be used.
286 # If STATICDEFAULT is empty, zero is used.
290 # An initial value to assign to MEMBER of the freshly
291 # malloc()ed gdbarch object. After initialization, the
292 # freshly malloc()ed object is passed to the target
293 # architecture code for further updates.
295 # If PREDEFAULT is empty, zero is used.
297 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
298 # INVALID_P are specified, PREDEFAULT will be used as the
299 # default for the non- multi-arch target.
301 # A zero PREDEFAULT function will force the fallback to call
304 # Variable declarations can refer to ``gdbarch'' which will
305 # contain the current architecture. Care should be taken.
309 # A value to assign to MEMBER of the new gdbarch object should
310 # the target architecture code fail to change the PREDEFAULT
313 # If POSTDEFAULT is empty, no post update is performed.
315 # If both INVALID_P and POSTDEFAULT are non-empty then
316 # INVALID_P will be used to determine if MEMBER should be
317 # changed to POSTDEFAULT.
319 # If a non-empty POSTDEFAULT and a zero INVALID_P are
320 # specified, POSTDEFAULT will be used as the default for the
321 # non- multi-arch target (regardless of the value of
324 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
326 # Variable declarations can refer to ``gdbarch'' which will
327 # contain the current architecture. Care should be taken.
331 # A predicate equation that validates MEMBER. Non-zero is
332 # returned if the code creating the new architecture failed to
333 # initialize MEMBER or the initialized the member is invalid.
334 # If POSTDEFAULT is non-empty then MEMBER will be updated to
335 # that value. If POSTDEFAULT is empty then internal_error()
338 # If INVALID_P is empty, a check that MEMBER is no longer
339 # equal to PREDEFAULT is used.
341 # The expression ``0'' disables the INVALID_P check making
342 # PREDEFAULT a legitimate value.
344 # See also PREDEFAULT and POSTDEFAULT.
348 # printf style format string that can be used to print out the
349 # MEMBER. Sometimes "%s" is useful. For functions, this is
350 # ignored and the function address is printed.
352 # If FMT is empty, ``%ld'' is used.
356 # An optional equation that casts MEMBER to a value suitable
357 # for formatting by FMT.
359 # If PRINT is empty, ``(long)'' is used.
363 # An optional indicator for any predicte to wrap around the
366 # () -> Call a custom function to do the dump.
367 # exp -> Wrap print up in ``if (${print_p}) ...
368 # ``'' -> No predicate
370 # If PRINT_P is empty, ``1'' is always used.
377 echo "Bad field ${field}"
385 # See below (DOCO) for description of each field
387 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
389 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
391 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
392 # Number of bits in a char or unsigned char for the target machine.
393 # Just like CHAR_BIT in <limits.h> but describes the target machine.
394 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
396 # Number of bits in a short or unsigned short for the target machine.
397 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
398 # Number of bits in an int or unsigned int for the target machine.
399 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
400 # Number of bits in a long or unsigned long for the target machine.
401 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
402 # Number of bits in a long long or unsigned long long for the target
404 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
405 # Number of bits in a float for the target machine.
406 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
407 # Number of bits in a double for the target machine.
408 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
409 # Number of bits in a long double for the target machine.
410 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
411 # For most targets, a pointer on the target and its representation as an
412 # address in GDB have the same size and "look the same". For such a
413 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
414 # / addr_bit will be set from it.
416 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
417 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
419 # ptr_bit is the size of a pointer on the target
420 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
421 # addr_bit is the size of a target address as represented in gdb
422 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
423 # Number of bits in a BFD_VMA for the target object file format.
424 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
426 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
427 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
429 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
431 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
432 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
433 # Function for getting target's idea of a frame pointer. FIXME: GDB's
434 # whole scheme for dealing with "frames" and "frame pointers" needs a
436 f:2: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
438 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
439 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
441 v:2:NUM_REGS:int:num_regs::::0:-1
442 # This macro gives the number of pseudo-registers that live in the
443 # register namespace but do not get fetched or stored on the target.
444 # These pseudo-registers may be aliases for other registers,
445 # combinations of other registers, or they may be computed by GDB.
446 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
448 # GDB's standard (or well known) register numbers. These can map onto
449 # a real register or a pseudo (computed) register or not be defined at
451 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
452 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
453 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
454 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
455 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
456 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
457 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
458 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
459 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
460 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
461 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
462 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
463 # Convert from an sdb register number to an internal gdb register number.
464 # This should be defined in tm.h, if REGISTER_NAMES is not set up
465 # to map one to one onto the sdb register numbers.
466 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
467 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
468 f::REGISTER_NAME:const char *:register_name:int regnr:regnr
470 # REGISTER_TYPE is a direct replacement for REGISTER_VIRTUAL_TYPE.
471 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr
472 # REGISTER_TYPE is a direct replacement for REGISTER_VIRTUAL_TYPE.
473 F:2:REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr
474 # DEPRECATED_REGISTER_BYTES can be deleted. The value is computed
475 # from REGISTER_TYPE.
476 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
477 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
478 # register offsets computed using just REGISTER_TYPE, this can be
479 # deleted. See: maint print registers. NOTE: cagney/2002-05-02: This
480 # function with predicate has a valid (callable) initial value. As a
481 # consequence, even when the predicate is false, the corresponding
482 # function works. This simplifies the migration process - old code,
483 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
484 F::REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
485 # If all registers have identical raw and virtual sizes and those
486 # sizes agree with the value computed from REGISTER_TYPE,
487 # DEPRECATED_REGISTER_RAW_SIZE can be deleted. See: maint print
489 F:2:REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
490 # If all registers have identical raw and virtual sizes and those
491 # sizes agree with the value computed from REGISTER_TYPE,
492 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted. See: maint print
494 F:2:REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
495 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted. It has been
496 # replaced by the constant MAX_REGISTER_SIZE.
497 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
498 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted. It has been
499 # replaced by the constant MAX_REGISTER_SIZE.
500 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
502 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
503 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info
504 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
505 # SAVE_DUMMY_FRAME_TOS.
506 F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp
507 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
508 # DEPRECATED_FP_REGNUM.
509 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
510 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
511 # DEPRECATED_TARGET_READ_FP.
512 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
514 # See gdbint.texinfo. See infcall.c. New, all singing all dancing,
515 # replacement for DEPRECATED_PUSH_ARGUMENTS.
516 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:CORE_ADDR func_addr, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:func_addr, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
517 # PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS.
518 F:2:DEPRECATED_PUSH_ARGUMENTS:CORE_ADDR:deprecated_push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr
519 # DEPRECATED_USE_GENERIC_DUMMY_FRAMES can be deleted. Always true.
520 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
521 # Implement PUSH_RETURN_ADDRESS, and then merge in
522 # DEPRECATED_PUSH_RETURN_ADDRESS.
523 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
524 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
525 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
526 # DEPRECATED_REGISTER_SIZE can be deleted.
527 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
528 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
529 F::DEPRECATED_CALL_DUMMY_ADDRESS:CORE_ADDR:deprecated_call_dummy_address:void
530 # DEPRECATED_CALL_DUMMY_START_OFFSET can be deleted.
531 v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset
532 # DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET can be deleted.
533 v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset
534 # DEPRECATED_CALL_DUMMY_LENGTH can be deleted.
535 v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length
536 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
537 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
538 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
539 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
540 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_CALL_DUMMY_STACK_ADJUST.
541 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust
542 # DEPRECATED_FIX_CALL_DUMMY can be deleted. For the SPARC, implement
543 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
544 F::DEPRECATED_FIX_CALL_DUMMY:void:deprecated_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
545 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
546 M::PUSH_DUMMY_CODE:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr
547 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
548 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
549 # Implement PUSH_DUMMY_CALL, then delete
550 # DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED.
551 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
553 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
554 m:2:PRINT_REGISTERS_INFO:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all:::default_print_registers_info::0
555 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
556 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
557 # MAP a GDB RAW register number onto a simulator register number. See
558 # also include/...-sim.h.
559 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
560 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
561 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
562 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
563 # setjmp/longjmp support.
564 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
565 # NOTE: cagney/2002-11-24: This function with predicate has a valid
566 # (callable) initial value. As a consequence, even when the predicate
567 # is false, the corresponding function works. This simplifies the
568 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
569 # doesn't need to be modified.
570 F::DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::generic_pc_in_call_dummy:generic_pc_in_call_dummy
571 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
572 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
574 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
575 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
576 F:2:DEPRECATED_GET_SAVED_REGISTER:void:deprecated_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
578 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
579 # For raw <-> cooked register conversions, replaced by pseudo registers.
580 f:2:DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr:::deprecated_register_convertible_not::0
581 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
582 # For raw <-> cooked register conversions, replaced by pseudo registers.
583 f:2:DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL:void:deprecated_register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
584 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
585 # For raw <-> cooked register conversions, replaced by pseudo registers.
586 f:2:DEPRECATED_REGISTER_CONVERT_TO_RAW:void:deprecated_register_convert_to_raw:struct type *type, int regnum, const char *from, char *to:type, regnum, from, to:::0::0
588 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
589 f:1:REGISTER_TO_VALUE:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, void *buf:frame, regnum, type, buf::0:legacy_register_to_value::0
590 f:1:VALUE_TO_REGISTER:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const void *buf:frame, regnum, type, buf::0:legacy_value_to_register::0
592 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
593 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
594 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
596 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
597 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
598 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
599 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
601 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
602 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
603 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
604 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
606 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache
607 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf
608 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
610 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
611 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
613 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
614 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
615 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
616 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
617 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
618 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
619 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
620 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
622 m::REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:regcache, gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
624 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
625 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
626 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
627 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
628 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC. Please
629 # note, per UNWIND_PC's doco, that while the two have similar
630 # interfaces they have very different underlying implementations.
631 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
632 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
633 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
634 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
635 # frame-base. Enable frame-base before frame-unwind.
636 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
637 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
638 # frame-base. Enable frame-base before frame-unwind.
639 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
640 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
641 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
643 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
644 # to frame_align and the requirement that methods such as
645 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
647 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
648 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
649 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
650 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
651 v:2:PARM_BOUNDARY:int:parm_boundary
653 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
654 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
655 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
656 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
657 # On some machines there are bits in addresses which are not really
658 # part of the address, but are used by the kernel, the hardware, etc.
659 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
660 # we get a "real" address such as one would find in a symbol table.
661 # This is used only for addresses of instructions, and even then I'm
662 # not sure it's used in all contexts. It exists to deal with there
663 # being a few stray bits in the PC which would mislead us, not as some
664 # sort of generic thing to handle alignment or segmentation (it's
665 # possible it should be in TARGET_READ_PC instead).
666 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
667 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
669 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
670 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
671 # the target needs software single step. An ISA method to implement it.
673 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
674 # using the breakpoint system instead of blatting memory directly (as with rs6000).
676 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
677 # single step. If not, then implement single step using breakpoints.
678 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
679 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
680 # disassembler. Perhaphs objdump can handle it?
681 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
682 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
685 # For SVR4 shared libraries, each call goes through a small piece of
686 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
687 # to nonzero if we are currently stopped in one of these.
688 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
690 # Some systems also have trampoline code for returning from shared libs.
691 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
693 # Sigtramp is a routine that the kernel calls (which then calls the
694 # signal handler). On most machines it is a library routine that is
695 # linked into the executable.
697 # This macro, given a program counter value and the name of the
698 # function in which that PC resides (which can be null if the name is
699 # not known), returns nonzero if the PC and name show that we are in
702 # On most machines just see if the name is sigtramp (and if we have
703 # no name, assume we are not in sigtramp).
705 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
706 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
707 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
708 # own local NAME lookup.
710 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
711 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
713 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
714 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
715 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
716 # A target might have problems with watchpoints as soon as the stack
717 # frame of the current function has been destroyed. This mostly happens
718 # as the first action in a funtion's epilogue. in_function_epilogue_p()
719 # is defined to return a non-zero value if either the given addr is one
720 # instruction after the stack destroying instruction up to the trailing
721 # return instruction or if we can figure out that the stack frame has
722 # already been invalidated regardless of the value of addr. Targets
723 # which don't suffer from that problem could just let this functionality
725 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
726 # Given a vector of command-line arguments, return a newly allocated
727 # string which, when passed to the create_inferior function, will be
728 # parsed (on Unix systems, by the shell) to yield the same vector.
729 # This function should call error() if the argument vector is not
730 # representable for this target or if this target does not support
731 # command-line arguments.
732 # ARGC is the number of elements in the vector.
733 # ARGV is an array of strings, one per argument.
734 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
735 f:2:ELF_MAKE_MSYMBOL_SPECIAL:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym:::default_elf_make_msymbol_special::0
736 f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0
737 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
738 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
739 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
740 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
741 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
742 M:2:ADDRESS_CLASS_NAME_TO_TYPE_FLAGS:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
743 # Is a register in a group
744 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
745 # Fetch the pointer to the ith function argument.
746 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
753 exec > new-gdbarch.log
754 function_list |
while do_read
757 ${class} ${macro}(${actual})
758 ${returntype} ${function} ($formal)${attrib}
762 eval echo \"\ \ \ \
${r}=\
${${r}}\"
764 if class_is_predicate_p
&& fallback_default_p
766 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
770 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
772 echo "Error: postdefault is useless when invalid_p=0" 1>&2
776 if class_is_multiarch_p
778 if class_is_predicate_p
; then :
779 elif test "x${predefault}" = "x"
781 echo "Error: pure multi-arch function must have a predefault" 1>&2
790 compare_new gdbarch.log
796 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
798 /* Dynamic architecture support for GDB, the GNU debugger.
799 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
801 This file is part of GDB.
803 This program is free software; you can redistribute it and/or modify
804 it under the terms of the GNU General Public License as published by
805 the Free Software Foundation; either version 2 of the License, or
806 (at your option) any later version.
808 This program is distributed in the hope that it will be useful,
809 but WITHOUT ANY WARRANTY; without even the implied warranty of
810 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
811 GNU General Public License for more details.
813 You should have received a copy of the GNU General Public License
814 along with this program; if not, write to the Free Software
815 Foundation, Inc., 59 Temple Place - Suite 330,
816 Boston, MA 02111-1307, USA. */
818 /* This file was created with the aid of \`\`gdbarch.sh''.
820 The Bourne shell script \`\`gdbarch.sh'' creates the files
821 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
822 against the existing \`\`gdbarch.[hc]''. Any differences found
825 If editing this file, please also run gdbarch.sh and merge any
826 changes into that script. Conversely, when making sweeping changes
827 to this file, modifying gdbarch.sh and using its output may prove
848 struct minimal_symbol;
851 struct disassemble_info;
853 extern struct gdbarch *current_gdbarch;
856 /* If any of the following are defined, the target wasn't correctly
859 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
860 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
867 printf "/* The following are pre-initialized by GDBARCH. */\n"
868 function_list |
while do_read
873 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
874 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
875 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
876 printf "#error \"Non multi-arch definition of ${macro}\"\n"
878 printf "#if !defined (${macro})\n"
879 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
887 printf "/* The following are initialized by the target dependent code. */\n"
888 function_list |
while do_read
890 if [ -n "${comment}" ]
892 echo "${comment}" |
sed \
897 if class_is_multiarch_p
899 if class_is_predicate_p
902 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
905 if class_is_predicate_p
908 printf "#if defined (${macro})\n"
909 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
910 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
911 printf "#if !defined (${macro}_P)\n"
912 printf "#define ${macro}_P() (1)\n"
916 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
917 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
918 printf "#error \"Non multi-arch definition of ${macro}\"\n"
920 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
921 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
925 if class_is_variable_p
928 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
929 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
930 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
931 printf "#error \"Non multi-arch definition of ${macro}\"\n"
933 printf "#if !defined (${macro})\n"
934 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
937 if class_is_function_p
940 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
942 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
943 elif class_is_multiarch_p
945 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
947 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
949 if [ "x${formal}" = "xvoid" ]
951 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
953 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
955 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
956 if class_is_multiarch_p
; then :
958 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
959 printf "#error \"Non multi-arch definition of ${macro}\"\n"
961 if [ "x${actual}" = "x" ]
963 d
="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
964 elif [ "x${actual}" = "x-" ]
966 d
="#define ${macro} (gdbarch_${function} (current_gdbarch))"
968 d
="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
970 printf "#if !defined (${macro})\n"
971 if [ "x${actual}" = "x" ]
973 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
974 elif [ "x${actual}" = "x-" ]
976 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
978 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
988 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
991 /* Mechanism for co-ordinating the selection of a specific
994 GDB targets (*-tdep.c) can register an interest in a specific
995 architecture. Other GDB components can register a need to maintain
996 per-architecture data.
998 The mechanisms below ensures that there is only a loose connection
999 between the set-architecture command and the various GDB
1000 components. Each component can independently register their need
1001 to maintain architecture specific data with gdbarch.
1005 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1008 The more traditional mega-struct containing architecture specific
1009 data for all the various GDB components was also considered. Since
1010 GDB is built from a variable number of (fairly independent)
1011 components it was determined that the global aproach was not
1015 /* Register a new architectural family with GDB.
1017 Register support for the specified ARCHITECTURE with GDB. When
1018 gdbarch determines that the specified architecture has been
1019 selected, the corresponding INIT function is called.
1023 The INIT function takes two parameters: INFO which contains the
1024 information available to gdbarch about the (possibly new)
1025 architecture; ARCHES which is a list of the previously created
1026 \`\`struct gdbarch'' for this architecture.
1028 The INFO parameter is, as far as possible, be pre-initialized with
1029 information obtained from INFO.ABFD or the previously selected
1032 The ARCHES parameter is a linked list (sorted most recently used)
1033 of all the previously created architures for this architecture
1034 family. The (possibly NULL) ARCHES->gdbarch can used to access
1035 values from the previously selected architecture for this
1036 architecture family. The global \`\`current_gdbarch'' shall not be
1039 The INIT function shall return any of: NULL - indicating that it
1040 doesn't recognize the selected architecture; an existing \`\`struct
1041 gdbarch'' from the ARCHES list - indicating that the new
1042 architecture is just a synonym for an earlier architecture (see
1043 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1044 - that describes the selected architecture (see gdbarch_alloc()).
1046 The DUMP_TDEP function shall print out all target specific values.
1047 Care should be taken to ensure that the function works in both the
1048 multi-arch and non- multi-arch cases. */
1052 struct gdbarch *gdbarch;
1053 struct gdbarch_list *next;
1058 /* Use default: NULL (ZERO). */
1059 const struct bfd_arch_info *bfd_arch_info;
1061 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1064 /* Use default: NULL (ZERO). */
1067 /* Use default: NULL (ZERO). */
1068 struct gdbarch_tdep_info *tdep_info;
1070 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1071 enum gdb_osabi osabi;
1074 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1075 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1077 /* DEPRECATED - use gdbarch_register() */
1078 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1080 extern void gdbarch_register (enum bfd_architecture architecture,
1081 gdbarch_init_ftype *,
1082 gdbarch_dump_tdep_ftype *);
1085 /* Return a freshly allocated, NULL terminated, array of the valid
1086 architecture names. Since architectures are registered during the
1087 _initialize phase this function only returns useful information
1088 once initialization has been completed. */
1090 extern const char **gdbarch_printable_names (void);
1093 /* Helper function. Search the list of ARCHES for a GDBARCH that
1094 matches the information provided by INFO. */
1096 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1099 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1100 basic initialization using values obtained from the INFO andTDEP
1101 parameters. set_gdbarch_*() functions are called to complete the
1102 initialization of the object. */
1104 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1107 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1108 It is assumed that the caller freeds the \`\`struct
1111 extern void gdbarch_free (struct gdbarch *);
1114 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1115 obstack. The memory is freed when the corresponding architecture
1118 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1119 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1120 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1123 /* Helper function. Force an update of the current architecture.
1125 The actual architecture selected is determined by INFO, \`\`(gdb) set
1126 architecture'' et.al., the existing architecture and BFD's default
1127 architecture. INFO should be initialized to zero and then selected
1128 fields should be updated.
1130 Returns non-zero if the update succeeds */
1132 extern int gdbarch_update_p (struct gdbarch_info info);
1136 /* Register per-architecture data-pointer.
1138 Reserve space for a per-architecture data-pointer. An identifier
1139 for the reserved data-pointer is returned. That identifer should
1140 be saved in a local static variable.
1142 The per-architecture data-pointer is either initialized explicitly
1143 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1146 Memory for the per-architecture data shall be allocated using
1147 gdbarch_obstack_zalloc. That memory will be deleted when the
1148 corresponding architecture object is deleted.
1150 When a previously created architecture is re-selected, the
1151 per-architecture data-pointer for that previous architecture is
1152 restored. INIT() is not re-called.
1154 Multiple registrarants for any architecture are allowed (and
1155 strongly encouraged). */
1157 struct gdbarch_data;
1159 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1160 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1161 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1162 struct gdbarch_data *data,
1165 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1168 /* Register per-architecture memory region.
1170 Provide a memory-region swap mechanism. Per-architecture memory
1171 region are created. These memory regions are swapped whenever the
1172 architecture is changed. For a new architecture, the memory region
1173 is initialized with zero (0) and the INIT function is called.
1175 Memory regions are swapped / initialized in the order that they are
1176 registered. NULL DATA and/or INIT values can be specified.
1178 New code should use register_gdbarch_data(). */
1180 typedef void (gdbarch_swap_ftype) (void);
1181 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1182 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1186 /* The target-system-dependent byte order is dynamic */
1188 extern int target_byte_order;
1189 #ifndef TARGET_BYTE_ORDER
1190 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1193 extern int target_byte_order_auto;
1194 #ifndef TARGET_BYTE_ORDER_AUTO
1195 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1200 /* The target-system-dependent BFD architecture is dynamic */
1202 extern int target_architecture_auto;
1203 #ifndef TARGET_ARCHITECTURE_AUTO
1204 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1207 extern const struct bfd_arch_info *target_architecture;
1208 #ifndef TARGET_ARCHITECTURE
1209 #define TARGET_ARCHITECTURE (target_architecture + 0)
1213 /* Set the dynamic target-system-dependent parameters (architecture,
1214 byte-order, ...) using information found in the BFD */
1216 extern void set_gdbarch_from_file (bfd *);
1219 /* Initialize the current architecture to the "first" one we find on
1222 extern void initialize_current_architecture (void);
1224 /* For non-multiarched targets, do any initialization of the default
1225 gdbarch object necessary after the _initialize_MODULE functions
1227 extern void initialize_non_multiarch (void);
1229 /* gdbarch trace variable */
1230 extern int gdbarch_debug;
1232 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1237 #../move-if-change new-gdbarch.h gdbarch.h
1238 compare_new gdbarch.h
1245 exec > new-gdbarch.c
1250 #include "arch-utils.h"
1253 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1256 #include "floatformat.h"
1258 #include "gdb_assert.h"
1259 #include "gdb_string.h"
1260 #include "gdb-events.h"
1261 #include "reggroups.h"
1263 #include "symfile.h" /* For entry_point_address. */
1264 #include "gdb_obstack.h"
1266 /* Static function declarations */
1268 static void verify_gdbarch (struct gdbarch *gdbarch);
1269 static void alloc_gdbarch_data (struct gdbarch *);
1270 static void init_gdbarch_swap (struct gdbarch *);
1271 static void clear_gdbarch_swap (struct gdbarch *);
1272 static void swapout_gdbarch_swap (struct gdbarch *);
1273 static void swapin_gdbarch_swap (struct gdbarch *);
1275 /* Non-zero if we want to trace architecture code. */
1277 #ifndef GDBARCH_DEBUG
1278 #define GDBARCH_DEBUG 0
1280 int gdbarch_debug = GDBARCH_DEBUG;
1284 # gdbarch open the gdbarch object
1286 printf "/* Maintain the struct gdbarch object */\n"
1288 printf "struct gdbarch\n"
1290 printf " /* Has this architecture been fully initialized? */\n"
1291 printf " int initialized_p;\n"
1293 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1294 printf " struct obstack *obstack;\n"
1296 printf " /* basic architectural information */\n"
1297 function_list |
while do_read
1301 printf " ${returntype} ${function};\n"
1305 printf " /* target specific vector. */\n"
1306 printf " struct gdbarch_tdep *tdep;\n"
1307 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1309 printf " /* per-architecture data-pointers */\n"
1310 printf " unsigned nr_data;\n"
1311 printf " void **data;\n"
1313 printf " /* per-architecture swap-regions */\n"
1314 printf " struct gdbarch_swap *swap;\n"
1317 /* Multi-arch values.
1319 When extending this structure you must:
1321 Add the field below.
1323 Declare set/get functions and define the corresponding
1326 gdbarch_alloc(): If zero/NULL is not a suitable default,
1327 initialize the new field.
1329 verify_gdbarch(): Confirm that the target updated the field
1332 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1335 \`\`startup_gdbarch()'': Append an initial value to the static
1336 variable (base values on the host's c-type system).
1338 get_gdbarch(): Implement the set/get functions (probably using
1339 the macro's as shortcuts).
1344 function_list |
while do_read
1346 if class_is_variable_p
1348 printf " ${returntype} ${function};\n"
1349 elif class_is_function_p
1351 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1356 # A pre-initialized vector
1360 /* The default architecture uses host values (for want of a better
1364 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1366 printf "struct gdbarch startup_gdbarch =\n"
1368 printf " 1, /* Always initialized. */\n"
1369 printf " NULL, /* The obstack. */\n"
1370 printf " /* basic architecture information */\n"
1371 function_list |
while do_read
1375 printf " ${staticdefault}, /* ${function} */\n"
1379 /* target specific vector and its dump routine */
1381 /*per-architecture data-pointers and swap regions */
1383 /* Multi-arch values */
1385 function_list |
while do_read
1387 if class_is_function_p || class_is_variable_p
1389 printf " ${staticdefault}, /* ${function} */\n"
1393 /* startup_gdbarch() */
1396 struct gdbarch *current_gdbarch = &startup_gdbarch;
1398 /* Do any initialization needed for a non-multiarch configuration
1399 after the _initialize_MODULE functions have been run. */
1401 initialize_non_multiarch (void)
1403 alloc_gdbarch_data (&startup_gdbarch);
1404 /* Ensure that all swap areas are zeroed so that they again think
1405 they are starting from scratch. */
1406 clear_gdbarch_swap (&startup_gdbarch);
1407 init_gdbarch_swap (&startup_gdbarch);
1411 # Create a new gdbarch struct
1415 /* Create a new \`\`struct gdbarch'' based on information provided by
1416 \`\`struct gdbarch_info''. */
1421 gdbarch_alloc (const struct gdbarch_info *info,
1422 struct gdbarch_tdep *tdep)
1424 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1425 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1426 the current local architecture and not the previous global
1427 architecture. This ensures that the new architectures initial
1428 values are not influenced by the previous architecture. Once
1429 everything is parameterised with gdbarch, this will go away. */
1430 struct gdbarch *current_gdbarch;
1432 /* Create an obstack for allocating all the per-architecture memory,
1433 then use that to allocate the architecture vector. */
1434 struct obstack *obstack = XMALLOC (struct obstack);
1435 obstack_init (obstack);
1436 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1437 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1438 current_gdbarch->obstack = obstack;
1440 alloc_gdbarch_data (current_gdbarch);
1442 current_gdbarch->tdep = tdep;
1445 function_list |
while do_read
1449 printf " current_gdbarch->${function} = info->${function};\n"
1453 printf " /* Force the explicit initialization of these. */\n"
1454 function_list |
while do_read
1456 if class_is_function_p || class_is_variable_p
1458 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1460 printf " current_gdbarch->${function} = ${predefault};\n"
1465 /* gdbarch_alloc() */
1467 return current_gdbarch;
1471 # Free a gdbarch struct.
1475 /* Allocate extra space using the per-architecture obstack. */
1478 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1480 void *data = obstack_alloc (arch->obstack, size);
1481 memset (data, 0, size);
1486 /* Free a gdbarch struct. This should never happen in normal
1487 operation --- once you've created a gdbarch, you keep it around.
1488 However, if an architecture's init function encounters an error
1489 building the structure, it may need to clean up a partially
1490 constructed gdbarch. */
1493 gdbarch_free (struct gdbarch *arch)
1495 struct obstack *obstack;
1496 gdb_assert (arch != NULL);
1497 gdb_assert (!arch->initialized_p);
1498 obstack = arch->obstack;
1499 obstack_free (obstack, 0); /* Includes the ARCH. */
1504 # verify a new architecture
1507 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1511 verify_gdbarch (struct gdbarch *gdbarch)
1513 struct ui_file *log;
1514 struct cleanup *cleanups;
1517 log = mem_fileopen ();
1518 cleanups = make_cleanup_ui_file_delete (log);
1520 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1521 fprintf_unfiltered (log, "\n\tbyte-order");
1522 if (gdbarch->bfd_arch_info == NULL)
1523 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1524 /* Check those that need to be defined for the given multi-arch level. */
1526 function_list |
while do_read
1528 if class_is_function_p || class_is_variable_p
1530 if [ "x${invalid_p}" = "x0" ]
1532 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1533 elif class_is_predicate_p
1535 printf " /* Skip verify of ${function}, has predicate */\n"
1536 # FIXME: See do_read for potential simplification
1537 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1539 printf " if (${invalid_p})\n"
1540 printf " gdbarch->${function} = ${postdefault};\n"
1541 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1543 printf " if (gdbarch->${function} == ${predefault})\n"
1544 printf " gdbarch->${function} = ${postdefault};\n"
1545 elif [ -n "${postdefault}" ]
1547 printf " if (gdbarch->${function} == 0)\n"
1548 printf " gdbarch->${function} = ${postdefault};\n"
1549 elif [ -n "${invalid_p}" ]
1551 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1552 printf " && (${invalid_p}))\n"
1553 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1554 elif [ -n "${predefault}" ]
1556 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1557 printf " && (gdbarch->${function} == ${predefault}))\n"
1558 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1563 buf = ui_file_xstrdup (log, &dummy);
1564 make_cleanup (xfree, buf);
1565 if (strlen (buf) > 0)
1566 internal_error (__FILE__, __LINE__,
1567 "verify_gdbarch: the following are invalid ...%s",
1569 do_cleanups (cleanups);
1573 # dump the structure
1577 /* Print out the details of the current architecture. */
1579 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1580 just happens to match the global variable \`\`current_gdbarch''. That
1581 way macros refering to that variable get the local and not the global
1582 version - ulgh. Once everything is parameterised with gdbarch, this
1586 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1588 fprintf_unfiltered (file,
1589 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1592 function_list |
sort -t: -k 3 |
while do_read
1594 # First the predicate
1595 if class_is_predicate_p
1597 if class_is_multiarch_p
1599 printf " fprintf_unfiltered (file,\n"
1600 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1601 printf " gdbarch_${function}_p (current_gdbarch));\n"
1603 printf "#ifdef ${macro}_P\n"
1604 printf " fprintf_unfiltered (file,\n"
1605 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1606 printf " \"${macro}_P()\",\n"
1607 printf " XSTRING (${macro}_P ()));\n"
1608 printf " fprintf_unfiltered (file,\n"
1609 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1610 printf " ${macro}_P ());\n"
1614 # multiarch functions don't have macros.
1615 if class_is_multiarch_p
1617 printf " fprintf_unfiltered (file,\n"
1618 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1619 printf " (long) current_gdbarch->${function});\n"
1622 # Print the macro definition.
1623 printf "#ifdef ${macro}\n"
1624 if class_is_function_p
1626 printf " fprintf_unfiltered (file,\n"
1627 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1628 printf " \"${macro}(${actual})\",\n"
1629 printf " XSTRING (${macro} (${actual})));\n"
1631 printf " fprintf_unfiltered (file,\n"
1632 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1633 printf " XSTRING (${macro}));\n"
1635 if [ "x${print_p}" = "x()" ]
1637 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1638 elif [ "x${print_p}" = "x0" ]
1640 printf " /* skip print of ${macro}, print_p == 0. */\n"
1641 elif [ -n "${print_p}" ]
1643 printf " if (${print_p})\n"
1644 printf " fprintf_unfiltered (file,\n"
1645 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1646 printf " ${print});\n"
1647 elif class_is_function_p
1649 printf " fprintf_unfiltered (file,\n"
1650 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1651 printf " (long) current_gdbarch->${function}\n"
1652 printf " /*${macro} ()*/);\n"
1654 printf " fprintf_unfiltered (file,\n"
1655 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1656 printf " ${print});\n"
1661 if (current_gdbarch->dump_tdep != NULL)
1662 current_gdbarch->dump_tdep (current_gdbarch, file);
1670 struct gdbarch_tdep *
1671 gdbarch_tdep (struct gdbarch *gdbarch)
1673 if (gdbarch_debug >= 2)
1674 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1675 return gdbarch->tdep;
1679 function_list |
while do_read
1681 if class_is_predicate_p
1685 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1687 printf " gdb_assert (gdbarch != NULL);\n"
1688 printf " return ${predicate};\n"
1691 if class_is_function_p
1694 printf "${returntype}\n"
1695 if [ "x${formal}" = "xvoid" ]
1697 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1699 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1702 printf " gdb_assert (gdbarch != NULL);\n"
1703 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1704 if class_is_predicate_p
&& test -n "${predefault}"
1706 # Allow a call to a function with a predicate.
1707 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1709 printf " if (gdbarch_debug >= 2)\n"
1710 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1711 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1713 if class_is_multiarch_p
1720 if class_is_multiarch_p
1722 params
="gdbarch, ${actual}"
1727 if [ "x${returntype}" = "xvoid" ]
1729 printf " gdbarch->${function} (${params});\n"
1731 printf " return gdbarch->${function} (${params});\n"
1736 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1737 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1739 printf " gdbarch->${function} = ${function};\n"
1741 elif class_is_variable_p
1744 printf "${returntype}\n"
1745 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1747 printf " gdb_assert (gdbarch != NULL);\n"
1748 if [ "x${invalid_p}" = "x0" ]
1750 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1751 elif [ -n "${invalid_p}" ]
1753 printf " /* Check variable is valid. */\n"
1754 printf " gdb_assert (!(${invalid_p}));\n"
1755 elif [ -n "${predefault}" ]
1757 printf " /* Check variable changed from pre-default. */\n"
1758 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1760 printf " if (gdbarch_debug >= 2)\n"
1761 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1762 printf " return gdbarch->${function};\n"
1766 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1767 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1769 printf " gdbarch->${function} = ${function};\n"
1771 elif class_is_info_p
1774 printf "${returntype}\n"
1775 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1777 printf " gdb_assert (gdbarch != NULL);\n"
1778 printf " if (gdbarch_debug >= 2)\n"
1779 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1780 printf " return gdbarch->${function};\n"
1785 # All the trailing guff
1789 /* Keep a registry of per-architecture data-pointers required by GDB
1796 gdbarch_data_init_ftype *init;
1799 struct gdbarch_data_registration
1801 struct gdbarch_data *data;
1802 struct gdbarch_data_registration *next;
1805 struct gdbarch_data_registry
1808 struct gdbarch_data_registration *registrations;
1811 struct gdbarch_data_registry gdbarch_data_registry =
1816 struct gdbarch_data *
1817 register_gdbarch_data (gdbarch_data_init_ftype *init)
1819 struct gdbarch_data_registration **curr;
1820 /* Append the new registraration. */
1821 for (curr = &gdbarch_data_registry.registrations;
1823 curr = &(*curr)->next);
1824 (*curr) = XMALLOC (struct gdbarch_data_registration);
1825 (*curr)->next = NULL;
1826 (*curr)->data = XMALLOC (struct gdbarch_data);
1827 (*curr)->data->index = gdbarch_data_registry.nr++;
1828 (*curr)->data->init = init;
1829 (*curr)->data->init_p = 1;
1830 return (*curr)->data;
1834 /* Create/delete the gdbarch data vector. */
1837 alloc_gdbarch_data (struct gdbarch *gdbarch)
1839 gdb_assert (gdbarch->data == NULL);
1840 gdbarch->nr_data = gdbarch_data_registry.nr;
1841 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1844 /* Initialize the current value of the specified per-architecture
1848 set_gdbarch_data (struct gdbarch *gdbarch,
1849 struct gdbarch_data *data,
1852 gdb_assert (data->index < gdbarch->nr_data);
1853 gdb_assert (gdbarch->data[data->index] == NULL);
1854 gdbarch->data[data->index] = pointer;
1857 /* Return the current value of the specified per-architecture
1861 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1863 gdb_assert (data->index < gdbarch->nr_data);
1864 /* The data-pointer isn't initialized, call init() to get a value but
1865 only if the architecture initializaiton has completed. Otherwise
1866 punt - hope that the caller knows what they are doing. */
1867 if (gdbarch->data[data->index] == NULL
1868 && gdbarch->initialized_p)
1870 /* Be careful to detect an initialization cycle. */
1871 gdb_assert (data->init_p);
1873 gdb_assert (data->init != NULL);
1874 gdbarch->data[data->index] = data->init (gdbarch);
1876 gdb_assert (gdbarch->data[data->index] != NULL);
1878 return gdbarch->data[data->index];
1883 /* Keep a registry of swapped data required by GDB modules. */
1888 struct gdbarch_swap_registration *source;
1889 struct gdbarch_swap *next;
1892 struct gdbarch_swap_registration
1895 unsigned long sizeof_data;
1896 gdbarch_swap_ftype *init;
1897 struct gdbarch_swap_registration *next;
1900 struct gdbarch_swap_registry
1903 struct gdbarch_swap_registration *registrations;
1906 struct gdbarch_swap_registry gdbarch_swap_registry =
1912 register_gdbarch_swap (void *data,
1913 unsigned long sizeof_data,
1914 gdbarch_swap_ftype *init)
1916 struct gdbarch_swap_registration **rego;
1917 for (rego = &gdbarch_swap_registry.registrations;
1919 rego = &(*rego)->next);
1920 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1921 (*rego)->next = NULL;
1922 (*rego)->init = init;
1923 (*rego)->data = data;
1924 (*rego)->sizeof_data = sizeof_data;
1928 clear_gdbarch_swap (struct gdbarch *gdbarch)
1930 struct gdbarch_swap *curr;
1931 for (curr = gdbarch->swap;
1935 memset (curr->source->data, 0, curr->source->sizeof_data);
1940 init_gdbarch_swap (struct gdbarch *gdbarch)
1942 struct gdbarch_swap_registration *rego;
1943 struct gdbarch_swap **curr = &gdbarch->swap;
1944 for (rego = gdbarch_swap_registry.registrations;
1948 if (rego->data != NULL)
1950 (*curr) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct gdbarch_swap);
1951 (*curr)->source = rego;
1952 (*curr)->swap = gdbarch_obstack_zalloc (gdbarch, rego->sizeof_data);
1953 (*curr)->next = NULL;
1954 curr = &(*curr)->next;
1956 if (rego->init != NULL)
1962 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1964 struct gdbarch_swap *curr;
1965 for (curr = gdbarch->swap;
1968 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1972 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1974 struct gdbarch_swap *curr;
1975 for (curr = gdbarch->swap;
1978 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1982 /* Keep a registry of the architectures known by GDB. */
1984 struct gdbarch_registration
1986 enum bfd_architecture bfd_architecture;
1987 gdbarch_init_ftype *init;
1988 gdbarch_dump_tdep_ftype *dump_tdep;
1989 struct gdbarch_list *arches;
1990 struct gdbarch_registration *next;
1993 static struct gdbarch_registration *gdbarch_registry = NULL;
1996 append_name (const char ***buf, int *nr, const char *name)
1998 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2004 gdbarch_printable_names (void)
2006 /* Accumulate a list of names based on the registed list of
2008 enum bfd_architecture a;
2010 const char **arches = NULL;
2011 struct gdbarch_registration *rego;
2012 for (rego = gdbarch_registry;
2016 const struct bfd_arch_info *ap;
2017 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2019 internal_error (__FILE__, __LINE__,
2020 "gdbarch_architecture_names: multi-arch unknown");
2023 append_name (&arches, &nr_arches, ap->printable_name);
2028 append_name (&arches, &nr_arches, NULL);
2034 gdbarch_register (enum bfd_architecture bfd_architecture,
2035 gdbarch_init_ftype *init,
2036 gdbarch_dump_tdep_ftype *dump_tdep)
2038 struct gdbarch_registration **curr;
2039 const struct bfd_arch_info *bfd_arch_info;
2040 /* Check that BFD recognizes this architecture */
2041 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2042 if (bfd_arch_info == NULL)
2044 internal_error (__FILE__, __LINE__,
2045 "gdbarch: Attempt to register unknown architecture (%d)",
2048 /* Check that we haven't seen this architecture before */
2049 for (curr = &gdbarch_registry;
2051 curr = &(*curr)->next)
2053 if (bfd_architecture == (*curr)->bfd_architecture)
2054 internal_error (__FILE__, __LINE__,
2055 "gdbarch: Duplicate registraration of architecture (%s)",
2056 bfd_arch_info->printable_name);
2060 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2061 bfd_arch_info->printable_name,
2064 (*curr) = XMALLOC (struct gdbarch_registration);
2065 (*curr)->bfd_architecture = bfd_architecture;
2066 (*curr)->init = init;
2067 (*curr)->dump_tdep = dump_tdep;
2068 (*curr)->arches = NULL;
2069 (*curr)->next = NULL;
2073 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2074 gdbarch_init_ftype *init)
2076 gdbarch_register (bfd_architecture, init, NULL);
2080 /* Look for an architecture using gdbarch_info. Base search on only
2081 BFD_ARCH_INFO and BYTE_ORDER. */
2083 struct gdbarch_list *
2084 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2085 const struct gdbarch_info *info)
2087 for (; arches != NULL; arches = arches->next)
2089 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2091 if (info->byte_order != arches->gdbarch->byte_order)
2093 if (info->osabi != arches->gdbarch->osabi)
2101 /* Update the current architecture. Return ZERO if the update request
2105 gdbarch_update_p (struct gdbarch_info info)
2107 struct gdbarch *new_gdbarch;
2108 struct gdbarch *old_gdbarch;
2109 struct gdbarch_registration *rego;
2111 /* Fill in missing parts of the INFO struct using a number of
2112 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2114 /* \`\`(gdb) set architecture ...'' */
2115 if (info.bfd_arch_info == NULL
2116 && !TARGET_ARCHITECTURE_AUTO)
2117 info.bfd_arch_info = TARGET_ARCHITECTURE;
2118 if (info.bfd_arch_info == NULL
2119 && info.abfd != NULL
2120 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2121 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2122 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2123 if (info.bfd_arch_info == NULL)
2124 info.bfd_arch_info = TARGET_ARCHITECTURE;
2126 /* \`\`(gdb) set byte-order ...'' */
2127 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2128 && !TARGET_BYTE_ORDER_AUTO)
2129 info.byte_order = TARGET_BYTE_ORDER;
2130 /* From the INFO struct. */
2131 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2132 && info.abfd != NULL)
2133 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2134 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2135 : BFD_ENDIAN_UNKNOWN);
2136 /* From the current target. */
2137 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2138 info.byte_order = TARGET_BYTE_ORDER;
2140 /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi. */
2141 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2142 info.osabi = gdbarch_lookup_osabi (info.abfd);
2143 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2144 info.osabi = current_gdbarch->osabi;
2146 /* Must have found some sort of architecture. */
2147 gdb_assert (info.bfd_arch_info != NULL);
2151 fprintf_unfiltered (gdb_stdlog,
2152 "gdbarch_update: info.bfd_arch_info %s\n",
2153 (info.bfd_arch_info != NULL
2154 ? info.bfd_arch_info->printable_name
2156 fprintf_unfiltered (gdb_stdlog,
2157 "gdbarch_update: info.byte_order %d (%s)\n",
2159 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2160 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2162 fprintf_unfiltered (gdb_stdlog,
2163 "gdbarch_update: info.osabi %d (%s)\n",
2164 info.osabi, gdbarch_osabi_name (info.osabi));
2165 fprintf_unfiltered (gdb_stdlog,
2166 "gdbarch_update: info.abfd 0x%lx\n",
2168 fprintf_unfiltered (gdb_stdlog,
2169 "gdbarch_update: info.tdep_info 0x%lx\n",
2170 (long) info.tdep_info);
2173 /* Find the target that knows about this architecture. */
2174 for (rego = gdbarch_registry;
2177 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2182 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2186 /* Swap the data belonging to the old target out setting the
2187 installed data to zero. This stops the ->init() function trying
2188 to refer to the previous architecture's global data structures. */
2189 swapout_gdbarch_swap (current_gdbarch);
2190 clear_gdbarch_swap (current_gdbarch);
2192 /* Save the previously selected architecture, setting the global to
2193 NULL. This stops ->init() trying to use the previous
2194 architecture's configuration. The previous architecture may not
2195 even be of the same architecture family. The most recent
2196 architecture of the same family is found at the head of the
2197 rego->arches list. */
2198 old_gdbarch = current_gdbarch;
2199 current_gdbarch = NULL;
2201 /* Ask the target for a replacement architecture. */
2202 new_gdbarch = rego->init (info, rego->arches);
2204 /* Did the target like it? No. Reject the change and revert to the
2205 old architecture. */
2206 if (new_gdbarch == NULL)
2209 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2210 swapin_gdbarch_swap (old_gdbarch);
2211 current_gdbarch = old_gdbarch;
2215 /* Did the architecture change? No. Oops, put the old architecture
2217 if (old_gdbarch == new_gdbarch)
2220 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2222 new_gdbarch->bfd_arch_info->printable_name);
2223 swapin_gdbarch_swap (old_gdbarch);
2224 current_gdbarch = old_gdbarch;
2228 /* Is this a pre-existing architecture? Yes. Move it to the front
2229 of the list of architectures (keeping the list sorted Most
2230 Recently Used) and then copy it in. */
2232 struct gdbarch_list **list;
2233 for (list = ®o->arches;
2235 list = &(*list)->next)
2237 if ((*list)->gdbarch == new_gdbarch)
2239 struct gdbarch_list *this;
2241 fprintf_unfiltered (gdb_stdlog,
2242 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2244 new_gdbarch->bfd_arch_info->printable_name);
2247 (*list) = this->next;
2248 /* Insert in the front. */
2249 this->next = rego->arches;
2250 rego->arches = this;
2251 /* Copy the new architecture in. */
2252 current_gdbarch = new_gdbarch;
2253 swapin_gdbarch_swap (new_gdbarch);
2254 architecture_changed_event ();
2260 /* Prepend this new architecture to the architecture list (keep the
2261 list sorted Most Recently Used). */
2263 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2264 this->next = rego->arches;
2265 this->gdbarch = new_gdbarch;
2266 rego->arches = this;
2269 /* Switch to this new architecture marking it initialized. */
2270 current_gdbarch = new_gdbarch;
2271 current_gdbarch->initialized_p = 1;
2274 fprintf_unfiltered (gdb_stdlog,
2275 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2277 new_gdbarch->bfd_arch_info->printable_name);
2280 /* Check that the newly installed architecture is valid. Plug in
2281 any post init values. */
2282 new_gdbarch->dump_tdep = rego->dump_tdep;
2283 verify_gdbarch (new_gdbarch);
2285 /* Initialize the per-architecture memory (swap) areas.
2286 CURRENT_GDBARCH must be update before these modules are
2288 init_gdbarch_swap (new_gdbarch);
2290 /* Initialize the per-architecture data. CURRENT_GDBARCH
2291 must be updated before these modules are called. */
2292 architecture_changed_event ();
2295 gdbarch_dump (current_gdbarch, gdb_stdlog);
2301 extern void _initialize_gdbarch (void);
2304 _initialize_gdbarch (void)
2306 struct cmd_list_element *c;
2308 add_show_from_set (add_set_cmd ("arch",
2311 (char *)&gdbarch_debug,
2312 "Set architecture debugging.\\n\\
2313 When non-zero, architecture debugging is enabled.", &setdebuglist),
2315 c = add_set_cmd ("archdebug",
2318 (char *)&gdbarch_debug,
2319 "Set architecture debugging.\\n\\
2320 When non-zero, architecture debugging is enabled.", &setlist);
2322 deprecate_cmd (c, "set debug arch");
2323 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2329 #../move-if-change new-gdbarch.c gdbarch.c
2330 compare_new gdbarch.c