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::CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void::::entry_point_address::0
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 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp
644 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
645 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
646 v:2:PARM_BOUNDARY:int:parm_boundary
648 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
649 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
650 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
651 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
652 # On some machines there are bits in addresses which are not really
653 # part of the address, but are used by the kernel, the hardware, etc.
654 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
655 # we get a "real" address such as one would find in a symbol table.
656 # This is used only for addresses of instructions, and even then I'm
657 # not sure it's used in all contexts. It exists to deal with there
658 # being a few stray bits in the PC which would mislead us, not as some
659 # sort of generic thing to handle alignment or segmentation (it's
660 # possible it should be in TARGET_READ_PC instead).
661 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
662 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
664 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
665 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
666 # the target needs software single step. An ISA method to implement it.
668 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
669 # using the breakpoint system instead of blatting memory directly (as with rs6000).
671 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
672 # single step. If not, then implement single step using breakpoints.
673 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
674 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
675 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
678 # For SVR4 shared libraries, each call goes through a small piece of
679 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
680 # to nonzero if we are currently stopped in one of these.
681 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
683 # Some systems also have trampoline code for returning from shared libs.
684 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
686 # Sigtramp is a routine that the kernel calls (which then calls the
687 # signal handler). On most machines it is a library routine that is
688 # linked into the executable.
690 # This macro, given a program counter value and the name of the
691 # function in which that PC resides (which can be null if the name is
692 # not known), returns nonzero if the PC and name show that we are in
695 # On most machines just see if the name is sigtramp (and if we have
696 # no name, assume we are not in sigtramp).
698 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
699 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
700 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
701 # own local NAME lookup.
703 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
704 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
706 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
707 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
708 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
709 # A target might have problems with watchpoints as soon as the stack
710 # frame of the current function has been destroyed. This mostly happens
711 # as the first action in a funtion's epilogue. in_function_epilogue_p()
712 # is defined to return a non-zero value if either the given addr is one
713 # instruction after the stack destroying instruction up to the trailing
714 # return instruction or if we can figure out that the stack frame has
715 # already been invalidated regardless of the value of addr. Targets
716 # which don't suffer from that problem could just let this functionality
718 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
719 # Given a vector of command-line arguments, return a newly allocated
720 # string which, when passed to the create_inferior function, will be
721 # parsed (on Unix systems, by the shell) to yield the same vector.
722 # This function should call error() if the argument vector is not
723 # representable for this target or if this target does not support
724 # command-line arguments.
725 # ARGC is the number of elements in the vector.
726 # ARGV is an array of strings, one per argument.
727 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
728 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
729 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
730 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
731 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
732 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
733 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
734 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
735 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
736 # Is a register in a group
737 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
738 # Fetch the pointer to the ith function argument.
739 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
746 exec > new-gdbarch.log
747 function_list |
while do_read
750 ${class} ${macro}(${actual})
751 ${returntype} ${function} ($formal)${attrib}
755 eval echo \"\ \ \ \
${r}=\
${${r}}\"
757 if class_is_predicate_p
&& fallback_default_p
759 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
763 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
765 echo "Error: postdefault is useless when invalid_p=0" 1>&2
769 if class_is_multiarch_p
771 if class_is_predicate_p
; then :
772 elif test "x${predefault}" = "x"
774 echo "Error: pure multi-arch function must have a predefault" 1>&2
783 compare_new gdbarch.log
789 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
791 /* Dynamic architecture support for GDB, the GNU debugger.
792 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
794 This file is part of GDB.
796 This program is free software; you can redistribute it and/or modify
797 it under the terms of the GNU General Public License as published by
798 the Free Software Foundation; either version 2 of the License, or
799 (at your option) any later version.
801 This program is distributed in the hope that it will be useful,
802 but WITHOUT ANY WARRANTY; without even the implied warranty of
803 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
804 GNU General Public License for more details.
806 You should have received a copy of the GNU General Public License
807 along with this program; if not, write to the Free Software
808 Foundation, Inc., 59 Temple Place - Suite 330,
809 Boston, MA 02111-1307, USA. */
811 /* This file was created with the aid of \`\`gdbarch.sh''.
813 The Bourne shell script \`\`gdbarch.sh'' creates the files
814 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
815 against the existing \`\`gdbarch.[hc]''. Any differences found
818 If editing this file, please also run gdbarch.sh and merge any
819 changes into that script. Conversely, when making sweeping changes
820 to this file, modifying gdbarch.sh and using its output may prove
836 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
843 struct minimal_symbol;
847 extern struct gdbarch *current_gdbarch;
850 /* If any of the following are defined, the target wasn't correctly
853 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
854 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
861 printf "/* The following are pre-initialized by GDBARCH. */\n"
862 function_list |
while do_read
867 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
868 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
869 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
870 printf "#error \"Non multi-arch definition of ${macro}\"\n"
872 printf "#if !defined (${macro})\n"
873 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
881 printf "/* The following are initialized by the target dependent code. */\n"
882 function_list |
while do_read
884 if [ -n "${comment}" ]
886 echo "${comment}" |
sed \
891 if class_is_multiarch_p
893 if class_is_predicate_p
896 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
899 if class_is_predicate_p
902 printf "#if defined (${macro})\n"
903 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
904 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
905 printf "#if !defined (${macro}_P)\n"
906 printf "#define ${macro}_P() (1)\n"
910 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
911 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
912 printf "#error \"Non multi-arch definition of ${macro}\"\n"
914 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
915 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
919 if class_is_variable_p
922 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
923 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
924 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
925 printf "#error \"Non multi-arch definition of ${macro}\"\n"
927 printf "#if !defined (${macro})\n"
928 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
931 if class_is_function_p
934 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
936 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
937 elif class_is_multiarch_p
939 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
941 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
943 if [ "x${formal}" = "xvoid" ]
945 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
947 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
949 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
950 if class_is_multiarch_p
; then :
952 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
953 printf "#error \"Non multi-arch definition of ${macro}\"\n"
955 if [ "x${actual}" = "x" ]
957 d
="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
958 elif [ "x${actual}" = "x-" ]
960 d
="#define ${macro} (gdbarch_${function} (current_gdbarch))"
962 d
="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
964 printf "#if !defined (${macro})\n"
965 if [ "x${actual}" = "x" ]
967 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
968 elif [ "x${actual}" = "x-" ]
970 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
972 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
982 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
985 /* Mechanism for co-ordinating the selection of a specific
988 GDB targets (*-tdep.c) can register an interest in a specific
989 architecture. Other GDB components can register a need to maintain
990 per-architecture data.
992 The mechanisms below ensures that there is only a loose connection
993 between the set-architecture command and the various GDB
994 components. Each component can independently register their need
995 to maintain architecture specific data with gdbarch.
999 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1002 The more traditional mega-struct containing architecture specific
1003 data for all the various GDB components was also considered. Since
1004 GDB is built from a variable number of (fairly independent)
1005 components it was determined that the global aproach was not
1009 /* Register a new architectural family with GDB.
1011 Register support for the specified ARCHITECTURE with GDB. When
1012 gdbarch determines that the specified architecture has been
1013 selected, the corresponding INIT function is called.
1017 The INIT function takes two parameters: INFO which contains the
1018 information available to gdbarch about the (possibly new)
1019 architecture; ARCHES which is a list of the previously created
1020 \`\`struct gdbarch'' for this architecture.
1022 The INFO parameter is, as far as possible, be pre-initialized with
1023 information obtained from INFO.ABFD or the previously selected
1026 The ARCHES parameter is a linked list (sorted most recently used)
1027 of all the previously created architures for this architecture
1028 family. The (possibly NULL) ARCHES->gdbarch can used to access
1029 values from the previously selected architecture for this
1030 architecture family. The global \`\`current_gdbarch'' shall not be
1033 The INIT function shall return any of: NULL - indicating that it
1034 doesn't recognize the selected architecture; an existing \`\`struct
1035 gdbarch'' from the ARCHES list - indicating that the new
1036 architecture is just a synonym for an earlier architecture (see
1037 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1038 - that describes the selected architecture (see gdbarch_alloc()).
1040 The DUMP_TDEP function shall print out all target specific values.
1041 Care should be taken to ensure that the function works in both the
1042 multi-arch and non- multi-arch cases. */
1046 struct gdbarch *gdbarch;
1047 struct gdbarch_list *next;
1052 /* Use default: NULL (ZERO). */
1053 const struct bfd_arch_info *bfd_arch_info;
1055 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1058 /* Use default: NULL (ZERO). */
1061 /* Use default: NULL (ZERO). */
1062 struct gdbarch_tdep_info *tdep_info;
1064 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1065 enum gdb_osabi osabi;
1068 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1069 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1071 /* DEPRECATED - use gdbarch_register() */
1072 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1074 extern void gdbarch_register (enum bfd_architecture architecture,
1075 gdbarch_init_ftype *,
1076 gdbarch_dump_tdep_ftype *);
1079 /* Return a freshly allocated, NULL terminated, array of the valid
1080 architecture names. Since architectures are registered during the
1081 _initialize phase this function only returns useful information
1082 once initialization has been completed. */
1084 extern const char **gdbarch_printable_names (void);
1087 /* Helper function. Search the list of ARCHES for a GDBARCH that
1088 matches the information provided by INFO. */
1090 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1093 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1094 basic initialization using values obtained from the INFO andTDEP
1095 parameters. set_gdbarch_*() functions are called to complete the
1096 initialization of the object. */
1098 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1101 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1102 It is assumed that the caller freeds the \`\`struct
1105 extern void gdbarch_free (struct gdbarch *);
1108 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1109 obstack. The memory is freed when the corresponding architecture
1112 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1113 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1114 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1117 /* Helper function. Force an update of the current architecture.
1119 The actual architecture selected is determined by INFO, \`\`(gdb) set
1120 architecture'' et.al., the existing architecture and BFD's default
1121 architecture. INFO should be initialized to zero and then selected
1122 fields should be updated.
1124 Returns non-zero if the update succeeds */
1126 extern int gdbarch_update_p (struct gdbarch_info info);
1130 /* Register per-architecture data-pointer.
1132 Reserve space for a per-architecture data-pointer. An identifier
1133 for the reserved data-pointer is returned. That identifer should
1134 be saved in a local static variable.
1136 The per-architecture data-pointer is either initialized explicitly
1137 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1140 Memory for the per-architecture data shall be allocated using
1141 gdbarch_obstack_zalloc. That memory will be deleted when the
1142 corresponding architecture object is deleted.
1144 When a previously created architecture is re-selected, the
1145 per-architecture data-pointer for that previous architecture is
1146 restored. INIT() is not re-called.
1148 Multiple registrarants for any architecture are allowed (and
1149 strongly encouraged). */
1151 struct gdbarch_data;
1153 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1154 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init);
1155 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1156 struct gdbarch_data *data,
1159 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1162 /* Register per-architecture memory region.
1164 Provide a memory-region swap mechanism. Per-architecture memory
1165 region are created. These memory regions are swapped whenever the
1166 architecture is changed. For a new architecture, the memory region
1167 is initialized with zero (0) and the INIT function is called.
1169 Memory regions are swapped / initialized in the order that they are
1170 registered. NULL DATA and/or INIT values can be specified.
1172 New code should use register_gdbarch_data(). */
1174 typedef void (gdbarch_swap_ftype) (void);
1175 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1176 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1180 /* The target-system-dependent byte order is dynamic */
1182 extern int target_byte_order;
1183 #ifndef TARGET_BYTE_ORDER
1184 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1187 extern int target_byte_order_auto;
1188 #ifndef TARGET_BYTE_ORDER_AUTO
1189 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1194 /* The target-system-dependent BFD architecture is dynamic */
1196 extern int target_architecture_auto;
1197 #ifndef TARGET_ARCHITECTURE_AUTO
1198 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1201 extern const struct bfd_arch_info *target_architecture;
1202 #ifndef TARGET_ARCHITECTURE
1203 #define TARGET_ARCHITECTURE (target_architecture + 0)
1207 /* The target-system-dependent disassembler is semi-dynamic */
1209 /* Use gdb_disassemble, and gdbarch_print_insn instead. */
1210 extern int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info*);
1212 /* Use set_gdbarch_print_insn instead. */
1213 extern disassemble_info deprecated_tm_print_insn_info;
1215 /* Set the dynamic target-system-dependent parameters (architecture,
1216 byte-order, ...) using information found in the BFD */
1218 extern void set_gdbarch_from_file (bfd *);
1221 /* Initialize the current architecture to the "first" one we find on
1224 extern void initialize_current_architecture (void);
1226 /* For non-multiarched targets, do any initialization of the default
1227 gdbarch object necessary after the _initialize_MODULE functions
1229 extern void initialize_non_multiarch (void);
1231 /* gdbarch trace variable */
1232 extern int gdbarch_debug;
1234 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1239 #../move-if-change new-gdbarch.h gdbarch.h
1240 compare_new gdbarch.h
1247 exec > new-gdbarch.c
1252 #include "arch-utils.h"
1255 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1258 #include "floatformat.h"
1260 #include "gdb_assert.h"
1261 #include "gdb_string.h"
1262 #include "gdb-events.h"
1263 #include "reggroups.h"
1265 #include "symfile.h" /* For entry_point_address. */
1266 #include "gdb_obstack.h"
1268 /* Static function declarations */
1270 static void verify_gdbarch (struct gdbarch *gdbarch);
1271 static void alloc_gdbarch_data (struct gdbarch *);
1272 static void init_gdbarch_swap (struct gdbarch *);
1273 static void clear_gdbarch_swap (struct gdbarch *);
1274 static void swapout_gdbarch_swap (struct gdbarch *);
1275 static void swapin_gdbarch_swap (struct gdbarch *);
1277 /* Non-zero if we want to trace architecture code. */
1279 #ifndef GDBARCH_DEBUG
1280 #define GDBARCH_DEBUG 0
1282 int gdbarch_debug = GDBARCH_DEBUG;
1286 # gdbarch open the gdbarch object
1288 printf "/* Maintain the struct gdbarch object */\n"
1290 printf "struct gdbarch\n"
1292 printf " /* Has this architecture been fully initialized? */\n"
1293 printf " int initialized_p;\n"
1295 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1296 printf " struct obstack *obstack;\n"
1298 printf " /* basic architectural information */\n"
1299 function_list |
while do_read
1303 printf " ${returntype} ${function};\n"
1307 printf " /* target specific vector. */\n"
1308 printf " struct gdbarch_tdep *tdep;\n"
1309 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1311 printf " /* per-architecture data-pointers */\n"
1312 printf " unsigned nr_data;\n"
1313 printf " void **data;\n"
1315 printf " /* per-architecture swap-regions */\n"
1316 printf " struct gdbarch_swap *swap;\n"
1319 /* Multi-arch values.
1321 When extending this structure you must:
1323 Add the field below.
1325 Declare set/get functions and define the corresponding
1328 gdbarch_alloc(): If zero/NULL is not a suitable default,
1329 initialize the new field.
1331 verify_gdbarch(): Confirm that the target updated the field
1334 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1337 \`\`startup_gdbarch()'': Append an initial value to the static
1338 variable (base values on the host's c-type system).
1340 get_gdbarch(): Implement the set/get functions (probably using
1341 the macro's as shortcuts).
1346 function_list |
while do_read
1348 if class_is_variable_p
1350 printf " ${returntype} ${function};\n"
1351 elif class_is_function_p
1353 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1358 # A pre-initialized vector
1362 /* The default architecture uses host values (for want of a better
1366 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1368 printf "struct gdbarch startup_gdbarch =\n"
1370 printf " 1, /* Always initialized. */\n"
1371 printf " NULL, /* The obstack. */\n"
1372 printf " /* basic architecture information */\n"
1373 function_list |
while do_read
1377 printf " ${staticdefault}, /* ${function} */\n"
1381 /* target specific vector and its dump routine */
1383 /*per-architecture data-pointers and swap regions */
1385 /* Multi-arch values */
1387 function_list |
while do_read
1389 if class_is_function_p || class_is_variable_p
1391 printf " ${staticdefault}, /* ${function} */\n"
1395 /* startup_gdbarch() */
1398 struct gdbarch *current_gdbarch = &startup_gdbarch;
1400 /* Do any initialization needed for a non-multiarch configuration
1401 after the _initialize_MODULE functions have been run. */
1403 initialize_non_multiarch (void)
1405 alloc_gdbarch_data (&startup_gdbarch);
1406 /* Ensure that all swap areas are zeroed so that they again think
1407 they are starting from scratch. */
1408 clear_gdbarch_swap (&startup_gdbarch);
1409 init_gdbarch_swap (&startup_gdbarch);
1413 # Create a new gdbarch struct
1417 /* Create a new \`\`struct gdbarch'' based on information provided by
1418 \`\`struct gdbarch_info''. */
1423 gdbarch_alloc (const struct gdbarch_info *info,
1424 struct gdbarch_tdep *tdep)
1426 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1427 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1428 the current local architecture and not the previous global
1429 architecture. This ensures that the new architectures initial
1430 values are not influenced by the previous architecture. Once
1431 everything is parameterised with gdbarch, this will go away. */
1432 struct gdbarch *current_gdbarch;
1434 /* Create an obstack for allocating all the per-architecture memory,
1435 then use that to allocate the architecture vector. */
1436 struct obstack *obstack = XMALLOC (struct obstack);
1437 obstack_init (obstack);
1438 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1439 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1440 current_gdbarch->obstack = obstack;
1442 alloc_gdbarch_data (current_gdbarch);
1444 current_gdbarch->tdep = tdep;
1447 function_list |
while do_read
1451 printf " current_gdbarch->${function} = info->${function};\n"
1455 printf " /* Force the explicit initialization of these. */\n"
1456 function_list |
while do_read
1458 if class_is_function_p || class_is_variable_p
1460 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1462 printf " current_gdbarch->${function} = ${predefault};\n"
1467 /* gdbarch_alloc() */
1469 return current_gdbarch;
1473 # Free a gdbarch struct.
1477 /* Allocate extra space using the per-architecture obstack. */
1480 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1482 void *data = obstack_alloc (arch->obstack, size);
1483 memset (data, 0, size);
1488 /* Free a gdbarch struct. This should never happen in normal
1489 operation --- once you've created a gdbarch, you keep it around.
1490 However, if an architecture's init function encounters an error
1491 building the structure, it may need to clean up a partially
1492 constructed gdbarch. */
1495 gdbarch_free (struct gdbarch *arch)
1497 struct obstack *obstack;
1498 gdb_assert (arch != NULL);
1499 gdb_assert (!arch->initialized_p);
1500 obstack = arch->obstack;
1501 obstack_free (obstack, 0); /* Includes the ARCH. */
1506 # verify a new architecture
1509 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1513 verify_gdbarch (struct gdbarch *gdbarch)
1515 struct ui_file *log;
1516 struct cleanup *cleanups;
1519 log = mem_fileopen ();
1520 cleanups = make_cleanup_ui_file_delete (log);
1522 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1523 fprintf_unfiltered (log, "\n\tbyte-order");
1524 if (gdbarch->bfd_arch_info == NULL)
1525 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1526 /* Check those that need to be defined for the given multi-arch level. */
1528 function_list |
while do_read
1530 if class_is_function_p || class_is_variable_p
1532 if [ "x${invalid_p}" = "x0" ]
1534 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1535 elif class_is_predicate_p
1537 printf " /* Skip verify of ${function}, has predicate */\n"
1538 # FIXME: See do_read for potential simplification
1539 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1541 printf " if (${invalid_p})\n"
1542 printf " gdbarch->${function} = ${postdefault};\n"
1543 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1545 printf " if (gdbarch->${function} == ${predefault})\n"
1546 printf " gdbarch->${function} = ${postdefault};\n"
1547 elif [ -n "${postdefault}" ]
1549 printf " if (gdbarch->${function} == 0)\n"
1550 printf " gdbarch->${function} = ${postdefault};\n"
1551 elif [ -n "${invalid_p}" ]
1553 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1554 printf " && (${invalid_p}))\n"
1555 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1556 elif [ -n "${predefault}" ]
1558 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1559 printf " && (gdbarch->${function} == ${predefault}))\n"
1560 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1565 buf = ui_file_xstrdup (log, &dummy);
1566 make_cleanup (xfree, buf);
1567 if (strlen (buf) > 0)
1568 internal_error (__FILE__, __LINE__,
1569 "verify_gdbarch: the following are invalid ...%s",
1571 do_cleanups (cleanups);
1575 # dump the structure
1579 /* Print out the details of the current architecture. */
1581 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1582 just happens to match the global variable \`\`current_gdbarch''. That
1583 way macros refering to that variable get the local and not the global
1584 version - ulgh. Once everything is parameterised with gdbarch, this
1588 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1590 fprintf_unfiltered (file,
1591 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1594 function_list |
sort -t: -k 3 |
while do_read
1596 # First the predicate
1597 if class_is_predicate_p
1599 if class_is_multiarch_p
1601 printf " fprintf_unfiltered (file,\n"
1602 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1603 printf " gdbarch_${function}_p (current_gdbarch));\n"
1605 printf "#ifdef ${macro}_P\n"
1606 printf " fprintf_unfiltered (file,\n"
1607 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1608 printf " \"${macro}_P()\",\n"
1609 printf " XSTRING (${macro}_P ()));\n"
1610 printf " fprintf_unfiltered (file,\n"
1611 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1612 printf " ${macro}_P ());\n"
1616 # multiarch functions don't have macros.
1617 if class_is_multiarch_p
1619 printf " fprintf_unfiltered (file,\n"
1620 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1621 printf " (long) current_gdbarch->${function});\n"
1624 # Print the macro definition.
1625 printf "#ifdef ${macro}\n"
1626 if class_is_function_p
1628 printf " fprintf_unfiltered (file,\n"
1629 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1630 printf " \"${macro}(${actual})\",\n"
1631 printf " XSTRING (${macro} (${actual})));\n"
1633 printf " fprintf_unfiltered (file,\n"
1634 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1635 printf " XSTRING (${macro}));\n"
1637 if [ "x${print_p}" = "x()" ]
1639 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1640 elif [ "x${print_p}" = "x0" ]
1642 printf " /* skip print of ${macro}, print_p == 0. */\n"
1643 elif [ -n "${print_p}" ]
1645 printf " if (${print_p})\n"
1646 printf " fprintf_unfiltered (file,\n"
1647 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1648 printf " ${print});\n"
1649 elif class_is_function_p
1651 printf " fprintf_unfiltered (file,\n"
1652 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1653 printf " (long) current_gdbarch->${function}\n"
1654 printf " /*${macro} ()*/);\n"
1656 printf " fprintf_unfiltered (file,\n"
1657 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1658 printf " ${print});\n"
1663 if (current_gdbarch->dump_tdep != NULL)
1664 current_gdbarch->dump_tdep (current_gdbarch, file);
1672 struct gdbarch_tdep *
1673 gdbarch_tdep (struct gdbarch *gdbarch)
1675 if (gdbarch_debug >= 2)
1676 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1677 return gdbarch->tdep;
1681 function_list |
while do_read
1683 if class_is_predicate_p
1687 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1689 printf " gdb_assert (gdbarch != NULL);\n"
1690 printf " return ${predicate};\n"
1693 if class_is_function_p
1696 printf "${returntype}\n"
1697 if [ "x${formal}" = "xvoid" ]
1699 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1701 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1704 printf " gdb_assert (gdbarch != NULL);\n"
1705 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1706 if class_is_predicate_p
&& test -n "${predefault}"
1708 # Allow a call to a function with a predicate.
1709 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1711 printf " if (gdbarch_debug >= 2)\n"
1712 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1713 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1715 if class_is_multiarch_p
1722 if class_is_multiarch_p
1724 params
="gdbarch, ${actual}"
1729 if [ "x${returntype}" = "xvoid" ]
1731 printf " gdbarch->${function} (${params});\n"
1733 printf " return gdbarch->${function} (${params});\n"
1738 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1739 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1741 printf " gdbarch->${function} = ${function};\n"
1743 elif class_is_variable_p
1746 printf "${returntype}\n"
1747 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1749 printf " gdb_assert (gdbarch != NULL);\n"
1750 if [ "x${invalid_p}" = "x0" ]
1752 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1753 elif [ -n "${invalid_p}" ]
1755 printf " /* Check variable is valid. */\n"
1756 printf " gdb_assert (!(${invalid_p}));\n"
1757 elif [ -n "${predefault}" ]
1759 printf " /* Check variable changed from pre-default. */\n"
1760 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1762 printf " if (gdbarch_debug >= 2)\n"
1763 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1764 printf " return gdbarch->${function};\n"
1768 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1769 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1771 printf " gdbarch->${function} = ${function};\n"
1773 elif class_is_info_p
1776 printf "${returntype}\n"
1777 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1779 printf " gdb_assert (gdbarch != NULL);\n"
1780 printf " if (gdbarch_debug >= 2)\n"
1781 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1782 printf " return gdbarch->${function};\n"
1787 # All the trailing guff
1791 /* Keep a registry of per-architecture data-pointers required by GDB
1798 gdbarch_data_init_ftype *init;
1801 struct gdbarch_data_registration
1803 struct gdbarch_data *data;
1804 struct gdbarch_data_registration *next;
1807 struct gdbarch_data_registry
1810 struct gdbarch_data_registration *registrations;
1813 struct gdbarch_data_registry gdbarch_data_registry =
1818 struct gdbarch_data *
1819 register_gdbarch_data (gdbarch_data_init_ftype *init)
1821 struct gdbarch_data_registration **curr;
1822 /* Append the new registraration. */
1823 for (curr = &gdbarch_data_registry.registrations;
1825 curr = &(*curr)->next);
1826 (*curr) = XMALLOC (struct gdbarch_data_registration);
1827 (*curr)->next = NULL;
1828 (*curr)->data = XMALLOC (struct gdbarch_data);
1829 (*curr)->data->index = gdbarch_data_registry.nr++;
1830 (*curr)->data->init = init;
1831 (*curr)->data->init_p = 1;
1832 return (*curr)->data;
1836 /* Create/delete the gdbarch data vector. */
1839 alloc_gdbarch_data (struct gdbarch *gdbarch)
1841 gdb_assert (gdbarch->data == NULL);
1842 gdbarch->nr_data = gdbarch_data_registry.nr;
1843 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1846 /* Initialize the current value of the specified per-architecture
1850 set_gdbarch_data (struct gdbarch *gdbarch,
1851 struct gdbarch_data *data,
1854 gdb_assert (data->index < gdbarch->nr_data);
1855 gdb_assert (gdbarch->data[data->index] == NULL);
1856 gdbarch->data[data->index] = pointer;
1859 /* Return the current value of the specified per-architecture
1863 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1865 gdb_assert (data->index < gdbarch->nr_data);
1866 /* The data-pointer isn't initialized, call init() to get a value but
1867 only if the architecture initializaiton has completed. Otherwise
1868 punt - hope that the caller knows what they are doing. */
1869 if (gdbarch->data[data->index] == NULL
1870 && gdbarch->initialized_p)
1872 /* Be careful to detect an initialization cycle. */
1873 gdb_assert (data->init_p);
1875 gdb_assert (data->init != NULL);
1876 gdbarch->data[data->index] = data->init (gdbarch);
1878 gdb_assert (gdbarch->data[data->index] != NULL);
1880 return gdbarch->data[data->index];
1885 /* Keep a registry of swapped data required by GDB modules. */
1890 struct gdbarch_swap_registration *source;
1891 struct gdbarch_swap *next;
1894 struct gdbarch_swap_registration
1897 unsigned long sizeof_data;
1898 gdbarch_swap_ftype *init;
1899 struct gdbarch_swap_registration *next;
1902 struct gdbarch_swap_registry
1905 struct gdbarch_swap_registration *registrations;
1908 struct gdbarch_swap_registry gdbarch_swap_registry =
1914 register_gdbarch_swap (void *data,
1915 unsigned long sizeof_data,
1916 gdbarch_swap_ftype *init)
1918 struct gdbarch_swap_registration **rego;
1919 for (rego = &gdbarch_swap_registry.registrations;
1921 rego = &(*rego)->next);
1922 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1923 (*rego)->next = NULL;
1924 (*rego)->init = init;
1925 (*rego)->data = data;
1926 (*rego)->sizeof_data = sizeof_data;
1930 clear_gdbarch_swap (struct gdbarch *gdbarch)
1932 struct gdbarch_swap *curr;
1933 for (curr = gdbarch->swap;
1937 memset (curr->source->data, 0, curr->source->sizeof_data);
1942 init_gdbarch_swap (struct gdbarch *gdbarch)
1944 struct gdbarch_swap_registration *rego;
1945 struct gdbarch_swap **curr = &gdbarch->swap;
1946 for (rego = gdbarch_swap_registry.registrations;
1950 if (rego->data != NULL)
1952 (*curr) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct gdbarch_swap);
1953 (*curr)->source = rego;
1954 (*curr)->swap = gdbarch_obstack_zalloc (gdbarch, rego->sizeof_data);
1955 (*curr)->next = NULL;
1956 curr = &(*curr)->next;
1958 if (rego->init != NULL)
1964 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1966 struct gdbarch_swap *curr;
1967 for (curr = gdbarch->swap;
1970 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1974 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1976 struct gdbarch_swap *curr;
1977 for (curr = gdbarch->swap;
1980 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1984 /* Keep a registry of the architectures known by GDB. */
1986 struct gdbarch_registration
1988 enum bfd_architecture bfd_architecture;
1989 gdbarch_init_ftype *init;
1990 gdbarch_dump_tdep_ftype *dump_tdep;
1991 struct gdbarch_list *arches;
1992 struct gdbarch_registration *next;
1995 static struct gdbarch_registration *gdbarch_registry = NULL;
1998 append_name (const char ***buf, int *nr, const char *name)
2000 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2006 gdbarch_printable_names (void)
2008 /* Accumulate a list of names based on the registed list of
2010 enum bfd_architecture a;
2012 const char **arches = NULL;
2013 struct gdbarch_registration *rego;
2014 for (rego = gdbarch_registry;
2018 const struct bfd_arch_info *ap;
2019 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2021 internal_error (__FILE__, __LINE__,
2022 "gdbarch_architecture_names: multi-arch unknown");
2025 append_name (&arches, &nr_arches, ap->printable_name);
2030 append_name (&arches, &nr_arches, NULL);
2036 gdbarch_register (enum bfd_architecture bfd_architecture,
2037 gdbarch_init_ftype *init,
2038 gdbarch_dump_tdep_ftype *dump_tdep)
2040 struct gdbarch_registration **curr;
2041 const struct bfd_arch_info *bfd_arch_info;
2042 /* Check that BFD recognizes this architecture */
2043 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2044 if (bfd_arch_info == NULL)
2046 internal_error (__FILE__, __LINE__,
2047 "gdbarch: Attempt to register unknown architecture (%d)",
2050 /* Check that we haven't seen this architecture before */
2051 for (curr = &gdbarch_registry;
2053 curr = &(*curr)->next)
2055 if (bfd_architecture == (*curr)->bfd_architecture)
2056 internal_error (__FILE__, __LINE__,
2057 "gdbarch: Duplicate registraration of architecture (%s)",
2058 bfd_arch_info->printable_name);
2062 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2063 bfd_arch_info->printable_name,
2066 (*curr) = XMALLOC (struct gdbarch_registration);
2067 (*curr)->bfd_architecture = bfd_architecture;
2068 (*curr)->init = init;
2069 (*curr)->dump_tdep = dump_tdep;
2070 (*curr)->arches = NULL;
2071 (*curr)->next = NULL;
2075 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2076 gdbarch_init_ftype *init)
2078 gdbarch_register (bfd_architecture, init, NULL);
2082 /* Look for an architecture using gdbarch_info. Base search on only
2083 BFD_ARCH_INFO and BYTE_ORDER. */
2085 struct gdbarch_list *
2086 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2087 const struct gdbarch_info *info)
2089 for (; arches != NULL; arches = arches->next)
2091 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2093 if (info->byte_order != arches->gdbarch->byte_order)
2095 if (info->osabi != arches->gdbarch->osabi)
2103 /* Update the current architecture. Return ZERO if the update request
2107 gdbarch_update_p (struct gdbarch_info info)
2109 struct gdbarch *new_gdbarch;
2110 struct gdbarch *old_gdbarch;
2111 struct gdbarch_registration *rego;
2113 /* Fill in missing parts of the INFO struct using a number of
2114 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2116 /* \`\`(gdb) set architecture ...'' */
2117 if (info.bfd_arch_info == NULL
2118 && !TARGET_ARCHITECTURE_AUTO)
2119 info.bfd_arch_info = TARGET_ARCHITECTURE;
2120 if (info.bfd_arch_info == NULL
2121 && info.abfd != NULL
2122 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2123 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2124 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2125 if (info.bfd_arch_info == NULL)
2126 info.bfd_arch_info = TARGET_ARCHITECTURE;
2128 /* \`\`(gdb) set byte-order ...'' */
2129 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2130 && !TARGET_BYTE_ORDER_AUTO)
2131 info.byte_order = TARGET_BYTE_ORDER;
2132 /* From the INFO struct. */
2133 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2134 && info.abfd != NULL)
2135 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2136 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2137 : BFD_ENDIAN_UNKNOWN);
2138 /* From the current target. */
2139 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2140 info.byte_order = TARGET_BYTE_ORDER;
2142 /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi. */
2143 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2144 info.osabi = gdbarch_lookup_osabi (info.abfd);
2145 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2146 info.osabi = current_gdbarch->osabi;
2148 /* Must have found some sort of architecture. */
2149 gdb_assert (info.bfd_arch_info != NULL);
2153 fprintf_unfiltered (gdb_stdlog,
2154 "gdbarch_update: info.bfd_arch_info %s\n",
2155 (info.bfd_arch_info != NULL
2156 ? info.bfd_arch_info->printable_name
2158 fprintf_unfiltered (gdb_stdlog,
2159 "gdbarch_update: info.byte_order %d (%s)\n",
2161 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2162 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2164 fprintf_unfiltered (gdb_stdlog,
2165 "gdbarch_update: info.osabi %d (%s)\n",
2166 info.osabi, gdbarch_osabi_name (info.osabi));
2167 fprintf_unfiltered (gdb_stdlog,
2168 "gdbarch_update: info.abfd 0x%lx\n",
2170 fprintf_unfiltered (gdb_stdlog,
2171 "gdbarch_update: info.tdep_info 0x%lx\n",
2172 (long) info.tdep_info);
2175 /* Find the target that knows about this architecture. */
2176 for (rego = gdbarch_registry;
2179 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2184 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2188 /* Swap the data belonging to the old target out setting the
2189 installed data to zero. This stops the ->init() function trying
2190 to refer to the previous architecture's global data structures. */
2191 swapout_gdbarch_swap (current_gdbarch);
2192 clear_gdbarch_swap (current_gdbarch);
2194 /* Save the previously selected architecture, setting the global to
2195 NULL. This stops ->init() trying to use the previous
2196 architecture's configuration. The previous architecture may not
2197 even be of the same architecture family. The most recent
2198 architecture of the same family is found at the head of the
2199 rego->arches list. */
2200 old_gdbarch = current_gdbarch;
2201 current_gdbarch = NULL;
2203 /* Ask the target for a replacement architecture. */
2204 new_gdbarch = rego->init (info, rego->arches);
2206 /* Did the target like it? No. Reject the change and revert to the
2207 old architecture. */
2208 if (new_gdbarch == NULL)
2211 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2212 swapin_gdbarch_swap (old_gdbarch);
2213 current_gdbarch = old_gdbarch;
2217 /* Did the architecture change? No. Oops, put the old architecture
2219 if (old_gdbarch == new_gdbarch)
2222 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2224 new_gdbarch->bfd_arch_info->printable_name);
2225 swapin_gdbarch_swap (old_gdbarch);
2226 current_gdbarch = old_gdbarch;
2230 /* Is this a pre-existing architecture? Yes. Move it to the front
2231 of the list of architectures (keeping the list sorted Most
2232 Recently Used) and then copy it in. */
2234 struct gdbarch_list **list;
2235 for (list = ®o->arches;
2237 list = &(*list)->next)
2239 if ((*list)->gdbarch == new_gdbarch)
2241 struct gdbarch_list *this;
2243 fprintf_unfiltered (gdb_stdlog,
2244 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2246 new_gdbarch->bfd_arch_info->printable_name);
2249 (*list) = this->next;
2250 /* Insert in the front. */
2251 this->next = rego->arches;
2252 rego->arches = this;
2253 /* Copy the new architecture in. */
2254 current_gdbarch = new_gdbarch;
2255 swapin_gdbarch_swap (new_gdbarch);
2256 architecture_changed_event ();
2262 /* Prepend this new architecture to the architecture list (keep the
2263 list sorted Most Recently Used). */
2265 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2266 this->next = rego->arches;
2267 this->gdbarch = new_gdbarch;
2268 rego->arches = this;
2271 /* Switch to this new architecture marking it initialized. */
2272 current_gdbarch = new_gdbarch;
2273 current_gdbarch->initialized_p = 1;
2276 fprintf_unfiltered (gdb_stdlog,
2277 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2279 new_gdbarch->bfd_arch_info->printable_name);
2282 /* Check that the newly installed architecture is valid. Plug in
2283 any post init values. */
2284 new_gdbarch->dump_tdep = rego->dump_tdep;
2285 verify_gdbarch (new_gdbarch);
2287 /* Initialize the per-architecture memory (swap) areas.
2288 CURRENT_GDBARCH must be update before these modules are
2290 init_gdbarch_swap (new_gdbarch);
2292 /* Initialize the per-architecture data. CURRENT_GDBARCH
2293 must be updated before these modules are called. */
2294 architecture_changed_event ();
2297 gdbarch_dump (current_gdbarch, gdb_stdlog);
2305 /* Pointer to the target-dependent disassembly function. */
2306 int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info *);
2308 extern void _initialize_gdbarch (void);
2311 _initialize_gdbarch (void)
2313 struct cmd_list_element *c;
2315 add_show_from_set (add_set_cmd ("arch",
2318 (char *)&gdbarch_debug,
2319 "Set architecture debugging.\\n\\
2320 When non-zero, architecture debugging is enabled.", &setdebuglist),
2322 c = add_set_cmd ("archdebug",
2325 (char *)&gdbarch_debug,
2326 "Set architecture debugging.\\n\\
2327 When non-zero, architecture debugging is enabled.", &setlist);
2329 deprecate_cmd (c, "set debug arch");
2330 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2336 #../move-if-change new-gdbarch.c gdbarch.c
2337 compare_new gdbarch.c