3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
9 # This file is part of GDB.
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2 of the License, or
14 # (at your option) any later version.
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program; if not, write to the Free Software
23 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 # Make certain that the script is running in an internationalized
28 LC_ALL
=c
; export LC_ALL
36 echo "${file} missing? cp new-${file} ${file}" 1>&2
37 elif diff -u ${file} new-
${file}
39 echo "${file} unchanged" 1>&2
41 echo "${file} has changed? cp new-${file} ${file}" 1>&2
46 # Format of the input table
47 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
55 if test "${line}" = ""
58 elif test "${line}" = "#" -a "${comment}" = ""
61 elif expr "${line}" : "#" > /dev
/null
67 # The semantics of IFS varies between different SH's. Some
68 # treat ``::' as three fields while some treat it as just too.
69 # Work around this by eliminating ``::'' ....
70 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
72 OFS
="${IFS}" ; IFS
="[:]"
73 eval read ${read} <<EOF
78 # .... and then going back through each field and strip out those
79 # that ended up with just that space character.
82 if eval test \"\
${${r}}\" = \"\
\"
89 1 ) gt_level
=">= GDB_MULTI_ARCH_PARTIAL" ;;
90 2 ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
91 "" ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
92 * ) error
"Error: bad level for ${function}" 1>&2 ; kill $$
; exit 1 ;;
96 m
) staticdefault
="${predefault}" ;;
97 M
) staticdefault
="0" ;;
98 * ) test "${staticdefault}" || staticdefault
=0 ;;
101 # come up with a format, use a few guesses for variables
102 case ":${class}:${fmt}:${print}:" in
104 if [ "${returntype}" = int
]
108 elif [ "${returntype}" = long
]
115 test "${fmt}" ||
fmt="%ld"
116 test "${print}" || print
="(long) ${macro}"
120 case "${invalid_p}" in
122 if test -n "${predefault}"
124 #invalid_p="gdbarch->${function} == ${predefault}"
125 predicate
="gdbarch->${function} != ${predefault}"
126 elif class_is_variable_p
128 predicate
="gdbarch->${function} != 0"
129 elif class_is_function_p
131 predicate
="gdbarch->${function} != NULL"
135 echo "Predicate function ${function} with invalid_p." 1>&2
142 # PREDEFAULT is a valid fallback definition of MEMBER when
143 # multi-arch is not enabled. This ensures that the
144 # default value, when multi-arch is the same as the
145 # default value when not multi-arch. POSTDEFAULT is
146 # always a valid definition of MEMBER as this again
147 # ensures consistency.
149 if [ -n "${postdefault}" ]
151 fallbackdefault
="${postdefault}"
152 elif [ -n "${predefault}" ]
154 fallbackdefault
="${predefault}"
159 #NOT YET: See gdbarch.log for basic verification of
174 fallback_default_p
()
176 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
177 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
180 class_is_variable_p
()
188 class_is_function_p
()
191 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
196 class_is_multiarch_p
()
204 class_is_predicate_p
()
207 *F
* |
*V
* |
*M
* ) true
;;
221 # dump out/verify the doco
231 # F -> function + predicate
232 # hiding a function + predicate to test function validity
235 # V -> variable + predicate
236 # hiding a variable + predicate to test variables validity
238 # hiding something from the ``struct info'' object
239 # m -> multi-arch function
240 # hiding a multi-arch function (parameterised with the architecture)
241 # M -> multi-arch function + predicate
242 # hiding a multi-arch function + predicate to test function validity
246 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
247 # LEVEL is a predicate on checking that a given method is
248 # initialized (using INVALID_P).
252 # The name of the MACRO that this method is to be accessed by.
256 # For functions, the return type; for variables, the data type
260 # For functions, the member function name; for variables, the
261 # variable name. Member function names are always prefixed with
262 # ``gdbarch_'' for name-space purity.
266 # The formal argument list. It is assumed that the formal
267 # argument list includes the actual name of each list element.
268 # A function with no arguments shall have ``void'' as the
269 # formal argument list.
273 # The list of actual arguments. The arguments specified shall
274 # match the FORMAL list given above. Functions with out
275 # arguments leave this blank.
279 # Any GCC attributes that should be attached to the function
280 # declaration. At present this field is unused.
284 # To help with the GDB startup a static gdbarch object is
285 # created. STATICDEFAULT is the value to insert into that
286 # static gdbarch object. Since this a static object only
287 # simple expressions can be used.
289 # If STATICDEFAULT is empty, zero is used.
293 # An initial value to assign to MEMBER of the freshly
294 # malloc()ed gdbarch object. After initialization, the
295 # freshly malloc()ed object is passed to the target
296 # architecture code for further updates.
298 # If PREDEFAULT is empty, zero is used.
300 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
301 # INVALID_P are specified, PREDEFAULT will be used as the
302 # default for the non- multi-arch target.
304 # A zero PREDEFAULT function will force the fallback to call
307 # Variable declarations can refer to ``gdbarch'' which will
308 # contain the current architecture. Care should be taken.
312 # A value to assign to MEMBER of the new gdbarch object should
313 # the target architecture code fail to change the PREDEFAULT
316 # If POSTDEFAULT is empty, no post update is performed.
318 # If both INVALID_P and POSTDEFAULT are non-empty then
319 # INVALID_P will be used to determine if MEMBER should be
320 # changed to POSTDEFAULT.
322 # If a non-empty POSTDEFAULT and a zero INVALID_P are
323 # specified, POSTDEFAULT will be used as the default for the
324 # non- multi-arch target (regardless of the value of
327 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
329 # Variable declarations can refer to ``current_gdbarch'' which
330 # will contain the current architecture. Care should be
335 # A predicate equation that validates MEMBER. Non-zero is
336 # returned if the code creating the new architecture failed to
337 # initialize MEMBER or the initialized the member is invalid.
338 # If POSTDEFAULT is non-empty then MEMBER will be updated to
339 # that value. If POSTDEFAULT is empty then internal_error()
342 # If INVALID_P is empty, a check that MEMBER is no longer
343 # equal to PREDEFAULT is used.
345 # The expression ``0'' disables the INVALID_P check making
346 # PREDEFAULT a legitimate value.
348 # See also PREDEFAULT and POSTDEFAULT.
352 # printf style format string that can be used to print out the
353 # MEMBER. Sometimes "%s" is useful. For functions, this is
354 # ignored and the function address is printed.
356 # If FMT is empty, ``%ld'' is used.
360 # An optional equation that casts MEMBER to a value suitable
361 # for formatting by FMT.
363 # If PRINT is empty, ``(long)'' is used.
367 # An optional indicator for any predicte to wrap around the
370 # () -> Call a custom function to do the dump.
371 # exp -> Wrap print up in ``if (${print_p}) ...
372 # ``'' -> No predicate
374 # If PRINT_P is empty, ``1'' is always used.
381 echo "Bad field ${field}"
389 # See below (DOCO) for description of each field
391 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
393 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
395 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
396 # Number of bits in a char or unsigned char for the target machine.
397 # Just like CHAR_BIT in <limits.h> but describes the target machine.
398 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
400 # Number of bits in a short or unsigned short for the target machine.
401 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
402 # Number of bits in an int or unsigned int for the target machine.
403 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
404 # Number of bits in a long or unsigned long for the target machine.
405 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
406 # Number of bits in a long long or unsigned long long for the target
408 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
409 # Number of bits in a float for the target machine.
410 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
411 # Number of bits in a double for the target machine.
412 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
413 # Number of bits in a long double for the target machine.
414 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
415 # For most targets, a pointer on the target and its representation as an
416 # address in GDB have the same size and "look the same". For such a
417 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
418 # / addr_bit will be set from it.
420 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
421 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
423 # ptr_bit is the size of a pointer on the target
424 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
425 # addr_bit is the size of a target address as represented in gdb
426 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
427 # Number of bits in a BFD_VMA for the target object file format.
428 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
430 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
431 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
433 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
434 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
435 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
436 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
437 # Function for getting target's idea of a frame pointer. FIXME: GDB's
438 # whole scheme for dealing with "frames" and "frame pointers" needs a
440 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
442 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
443 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
445 v:2:NUM_REGS:int:num_regs::::0:-1
446 # This macro gives the number of pseudo-registers that live in the
447 # register namespace but do not get fetched or stored on the target.
448 # These pseudo-registers may be aliases for other registers,
449 # combinations of other registers, or they may be computed by GDB.
450 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
452 # GDB's standard (or well known) register numbers. These can map onto
453 # a real register or a pseudo (computed) register or not be defined at
455 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
456 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
457 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
458 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
459 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
460 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
461 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
462 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
463 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
464 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
465 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
466 # Convert from an sdb register number to an internal gdb register number.
467 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
468 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
469 f::REGISTER_NAME:const char *:register_name:int regnr:regnr
471 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
472 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr
473 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
474 F:2:DEPRECATED_REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr
475 # DEPRECATED_REGISTER_BYTES can be deleted. The value is computed
476 # from REGISTER_TYPE.
477 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
478 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
479 # register offsets computed using just REGISTER_TYPE, this can be
480 # deleted. See: maint print registers. NOTE: cagney/2002-05-02: This
481 # function with predicate has a valid (callable) initial value. As a
482 # consequence, even when the predicate is false, the corresponding
483 # function works. This simplifies the migration process - old code,
484 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
485 F::DEPRECATED_REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
486 # If all registers have identical raw and virtual sizes and those
487 # sizes agree with the value computed from REGISTER_TYPE,
488 # DEPRECATED_REGISTER_RAW_SIZE can be deleted. See: maint print
490 F:2:DEPRECATED_REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
491 # If all registers have identical raw and virtual sizes and those
492 # sizes agree with the value computed from REGISTER_TYPE,
493 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted. See: maint print
495 F:2:DEPRECATED_REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
496 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted. It has been
497 # replaced by the constant MAX_REGISTER_SIZE.
498 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
499 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted. It has been
500 # replaced by the constant MAX_REGISTER_SIZE.
501 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
503 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
504 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info
505 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
506 # SAVE_DUMMY_FRAME_TOS.
507 F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp
508 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
509 # DEPRECATED_FP_REGNUM.
510 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
511 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
512 # DEPRECATED_TARGET_READ_FP.
513 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
515 # See gdbint.texinfo. See infcall.c. New, all singing all dancing,
516 # replacement for DEPRECATED_PUSH_ARGUMENTS.
517 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
518 # PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS.
519 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
520 # Implement PUSH_RETURN_ADDRESS, and then merge in
521 # DEPRECATED_PUSH_RETURN_ADDRESS.
522 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
523 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
524 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
525 # DEPRECATED_REGISTER_SIZE can be deleted.
526 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
527 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
528 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
529 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
530 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
531 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
532 # DEPRECATED_FIX_CALL_DUMMY can be deleted. For the SPARC, implement
533 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
534 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
535 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
536 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
538 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
539 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
540 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
541 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
542 # MAP a GDB RAW register number onto a simulator register number. See
543 # also include/...-sim.h.
544 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
545 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
546 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
547 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
548 # setjmp/longjmp support.
549 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
550 # NOTE: cagney/2002-11-24: This function with predicate has a valid
551 # (callable) initial value. As a consequence, even when the predicate
552 # is false, the corresponding function works. This simplifies the
553 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
554 # doesn't need to be modified.
555 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::deprecated_pc_in_call_dummy:deprecated_pc_in_call_dummy
556 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
558 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
559 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
561 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
562 # For raw <-> cooked register conversions, replaced by pseudo registers.
563 F::DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr
564 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
565 # For raw <-> cooked register conversions, replaced by pseudo registers.
566 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
567 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
568 # For raw <-> cooked register conversions, replaced by pseudo registers.
569 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
571 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
572 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
573 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
575 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
576 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
577 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
579 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
580 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
581 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
583 # It has been suggested that this, well actually its predecessor,
584 # should take the type/value of the function to be called and not the
585 # return type. This is left as an exercise for the reader.
587 M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf
589 # The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
590 # STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
593 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
594 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
595 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
596 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
597 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
598 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
600 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
601 # ABI suitable for the implementation of a robust extract
602 # struct-convention return-value address method (the sparc saves the
603 # address in the callers frame). All the other cases so far examined,
604 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
605 # erreneous - the code was incorrectly assuming that the return-value
606 # address, stored in a register, was preserved across the entire
609 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
610 # the ABIs that are still to be analyzed - perhaps this should simply
611 # be deleted. The commented out extract_returned_value_address method
612 # is provided as a starting point for the 32-bit SPARC. It, or
613 # something like it, along with changes to both infcmd.c and stack.c
614 # will be needed for that case to work. NB: It is passed the callers
615 # frame since it is only after the callee has returned that this
618 #M:::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
619 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
621 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
622 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
624 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
625 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
626 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
627 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
628 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
629 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
630 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0
631 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0
633 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
635 v::FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:::0
636 # DEPRECATED_FRAMELESS_FUNCTION_INVOCATION is not needed. The new
637 # frame code works regardless of the type of frame - frameless,
638 # stackless, or normal.
639 F::DEPRECATED_FRAMELESS_FUNCTION_INVOCATION:int:deprecated_frameless_function_invocation:struct frame_info *fi:fi
640 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
641 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
642 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC. Please
643 # note, per UNWIND_PC's doco, that while the two have similar
644 # interfaces they have very different underlying implementations.
645 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
646 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
647 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
648 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
649 # frame-base. Enable frame-base before frame-unwind.
650 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
651 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
652 # frame-base. Enable frame-base before frame-unwind.
653 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
654 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
655 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
657 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
658 # to frame_align and the requirement that methods such as
659 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
661 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
662 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
663 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
664 # stabs_argument_has_addr.
665 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
666 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
667 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
669 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
670 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
671 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
672 m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0
673 # On some machines there are bits in addresses which are not really
674 # part of the address, but are used by the kernel, the hardware, etc.
675 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
676 # we get a "real" address such as one would find in a symbol table.
677 # This is used only for addresses of instructions, and even then I'm
678 # not sure it's used in all contexts. It exists to deal with there
679 # being a few stray bits in the PC which would mislead us, not as some
680 # sort of generic thing to handle alignment or segmentation (it's
681 # possible it should be in TARGET_READ_PC instead).
682 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
683 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
685 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
686 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
687 # the target needs software single step. An ISA method to implement it.
689 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
690 # using the breakpoint system instead of blatting memory directly (as with rs6000).
692 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
693 # single step. If not, then implement single step using breakpoints.
694 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
695 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
696 # disassembler. Perhaphs objdump can handle it?
697 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
698 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
701 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
702 # evaluates non-zero, this is the address where the debugger will place
703 # a step-resume breakpoint to get us past the dynamic linker.
704 m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
705 # For SVR4 shared libraries, each call goes through a small piece of
706 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
707 # to nonzero if we are currently stopped in one of these.
708 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
710 # Some systems also have trampoline code for returning from shared libs.
711 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
713 # A target might have problems with watchpoints as soon as the stack
714 # frame of the current function has been destroyed. This mostly happens
715 # as the first action in a funtion's epilogue. in_function_epilogue_p()
716 # is defined to return a non-zero value if either the given addr is one
717 # instruction after the stack destroying instruction up to the trailing
718 # return instruction or if we can figure out that the stack frame has
719 # already been invalidated regardless of the value of addr. Targets
720 # which don't suffer from that problem could just let this functionality
722 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
723 # Given a vector of command-line arguments, return a newly allocated
724 # string which, when passed to the create_inferior function, will be
725 # parsed (on Unix systems, by the shell) to yield the same vector.
726 # This function should call error() if the argument vector is not
727 # representable for this target or if this target does not support
728 # command-line arguments.
729 # ARGC is the number of elements in the vector.
730 # ARGV is an array of strings, one per argument.
731 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
732 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
733 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
734 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
735 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
736 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
737 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
738 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
739 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
740 # Is a register in a group
741 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
742 # Fetch the pointer to the ith function argument.
743 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
745 # Return the appropriate register set for a core file section with
746 # name SECT_NAME and size SECT_SIZE.
747 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
754 exec > new-gdbarch.log
755 function_list |
while do_read
758 ${class} ${macro}(${actual})
759 ${returntype} ${function} ($formal)${attrib}
763 eval echo \"\ \ \ \
${r}=\
${${r}}\"
765 if class_is_predicate_p
&& fallback_default_p
767 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
771 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
773 echo "Error: postdefault is useless when invalid_p=0" 1>&2
777 if class_is_multiarch_p
779 if class_is_predicate_p
; then :
780 elif test "x${predefault}" = "x"
782 echo "Error: pure multi-arch function must have a predefault" 1>&2
791 compare_new gdbarch.log
797 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
799 /* Dynamic architecture support for GDB, the GNU debugger.
801 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
802 Software Foundation, Inc.
804 This file is part of GDB.
806 This program is free software; you can redistribute it and/or modify
807 it under the terms of the GNU General Public License as published by
808 the Free Software Foundation; either version 2 of the License, or
809 (at your option) any later version.
811 This program is distributed in the hope that it will be useful,
812 but WITHOUT ANY WARRANTY; without even the implied warranty of
813 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
814 GNU General Public License for more details.
816 You should have received a copy of the GNU General Public License
817 along with this program; if not, write to the Free Software
818 Foundation, Inc., 59 Temple Place - Suite 330,
819 Boston, MA 02111-1307, USA. */
821 /* This file was created with the aid of \`\`gdbarch.sh''.
823 The Bourne shell script \`\`gdbarch.sh'' creates the files
824 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
825 against the existing \`\`gdbarch.[hc]''. Any differences found
828 If editing this file, please also run gdbarch.sh and merge any
829 changes into that script. Conversely, when making sweeping changes
830 to this file, modifying gdbarch.sh and using its output may prove
851 struct minimal_symbol;
855 struct disassemble_info;
859 extern struct gdbarch *current_gdbarch;
861 /* If any of the following are defined, the target wasn't correctly
864 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
865 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
872 printf "/* The following are pre-initialized by GDBARCH. */\n"
873 function_list |
while do_read
878 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
879 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
880 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
881 printf "#error \"Non multi-arch definition of ${macro}\"\n"
883 printf "#if !defined (${macro})\n"
884 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
892 printf "/* The following are initialized by the target dependent code. */\n"
893 function_list |
while do_read
895 if [ -n "${comment}" ]
897 echo "${comment}" |
sed \
902 if class_is_multiarch_p
904 if class_is_predicate_p
907 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
910 if class_is_predicate_p
913 printf "#if defined (${macro})\n"
914 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
915 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
916 printf "#if !defined (${macro}_P)\n"
917 printf "#define ${macro}_P() (1)\n"
921 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
922 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
923 printf "#error \"Non multi-arch definition of ${macro}\"\n"
925 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
926 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
930 if class_is_variable_p
933 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
934 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
935 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
936 printf "#error \"Non multi-arch definition of ${macro}\"\n"
938 printf "#if !defined (${macro})\n"
939 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
942 if class_is_function_p
945 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
947 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
948 elif class_is_multiarch_p
950 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
952 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
954 if [ "x${formal}" = "xvoid" ]
956 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
958 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
960 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
961 if class_is_multiarch_p
; then :
963 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
964 printf "#error \"Non multi-arch definition of ${macro}\"\n"
966 if [ "x${actual}" = "x" ]
968 d
="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
969 elif [ "x${actual}" = "x-" ]
971 d
="#define ${macro} (gdbarch_${function} (current_gdbarch))"
973 d
="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
975 printf "#if !defined (${macro})\n"
976 if [ "x${actual}" = "x" ]
978 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
979 elif [ "x${actual}" = "x-" ]
981 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
983 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
993 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
996 /* Mechanism for co-ordinating the selection of a specific
999 GDB targets (*-tdep.c) can register an interest in a specific
1000 architecture. Other GDB components can register a need to maintain
1001 per-architecture data.
1003 The mechanisms below ensures that there is only a loose connection
1004 between the set-architecture command and the various GDB
1005 components. Each component can independently register their need
1006 to maintain architecture specific data with gdbarch.
1010 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1013 The more traditional mega-struct containing architecture specific
1014 data for all the various GDB components was also considered. Since
1015 GDB is built from a variable number of (fairly independent)
1016 components it was determined that the global aproach was not
1020 /* Register a new architectural family with GDB.
1022 Register support for the specified ARCHITECTURE with GDB. When
1023 gdbarch determines that the specified architecture has been
1024 selected, the corresponding INIT function is called.
1028 The INIT function takes two parameters: INFO which contains the
1029 information available to gdbarch about the (possibly new)
1030 architecture; ARCHES which is a list of the previously created
1031 \`\`struct gdbarch'' for this architecture.
1033 The INFO parameter is, as far as possible, be pre-initialized with
1034 information obtained from INFO.ABFD or the previously selected
1037 The ARCHES parameter is a linked list (sorted most recently used)
1038 of all the previously created architures for this architecture
1039 family. The (possibly NULL) ARCHES->gdbarch can used to access
1040 values from the previously selected architecture for this
1041 architecture family. The global \`\`current_gdbarch'' shall not be
1044 The INIT function shall return any of: NULL - indicating that it
1045 doesn't recognize the selected architecture; an existing \`\`struct
1046 gdbarch'' from the ARCHES list - indicating that the new
1047 architecture is just a synonym for an earlier architecture (see
1048 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1049 - that describes the selected architecture (see gdbarch_alloc()).
1051 The DUMP_TDEP function shall print out all target specific values.
1052 Care should be taken to ensure that the function works in both the
1053 multi-arch and non- multi-arch cases. */
1057 struct gdbarch *gdbarch;
1058 struct gdbarch_list *next;
1063 /* Use default: NULL (ZERO). */
1064 const struct bfd_arch_info *bfd_arch_info;
1066 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1069 /* Use default: NULL (ZERO). */
1072 /* Use default: NULL (ZERO). */
1073 struct gdbarch_tdep_info *tdep_info;
1075 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1076 enum gdb_osabi osabi;
1079 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1080 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1082 /* DEPRECATED - use gdbarch_register() */
1083 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1085 extern void gdbarch_register (enum bfd_architecture architecture,
1086 gdbarch_init_ftype *,
1087 gdbarch_dump_tdep_ftype *);
1090 /* Return a freshly allocated, NULL terminated, array of the valid
1091 architecture names. Since architectures are registered during the
1092 _initialize phase this function only returns useful information
1093 once initialization has been completed. */
1095 extern const char **gdbarch_printable_names (void);
1098 /* Helper function. Search the list of ARCHES for a GDBARCH that
1099 matches the information provided by INFO. */
1101 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1104 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1105 basic initialization using values obtained from the INFO andTDEP
1106 parameters. set_gdbarch_*() functions are called to complete the
1107 initialization of the object. */
1109 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1112 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1113 It is assumed that the caller freeds the \`\`struct
1116 extern void gdbarch_free (struct gdbarch *);
1119 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1120 obstack. The memory is freed when the corresponding architecture
1123 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1124 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1125 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1128 /* Helper function. Force an update of the current architecture.
1130 The actual architecture selected is determined by INFO, \`\`(gdb) set
1131 architecture'' et.al., the existing architecture and BFD's default
1132 architecture. INFO should be initialized to zero and then selected
1133 fields should be updated.
1135 Returns non-zero if the update succeeds */
1137 extern int gdbarch_update_p (struct gdbarch_info info);
1140 /* Helper function. Find an architecture matching info.
1142 INFO should be initialized using gdbarch_info_init, relevant fields
1143 set, and then finished using gdbarch_info_fill.
1145 Returns the corresponding architecture, or NULL if no matching
1146 architecture was found. "current_gdbarch" is not updated. */
1148 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1151 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1153 FIXME: kettenis/20031124: Of the functions that follow, only
1154 gdbarch_from_bfd is supposed to survive. The others will
1155 dissappear since in the future GDB will (hopefully) be truly
1156 multi-arch. However, for now we're still stuck with the concept of
1157 a single active architecture. */
1159 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1162 /* Register per-architecture data-pointer.
1164 Reserve space for a per-architecture data-pointer. An identifier
1165 for the reserved data-pointer is returned. That identifer should
1166 be saved in a local static variable.
1168 Memory for the per-architecture data shall be allocated using
1169 gdbarch_obstack_zalloc. That memory will be deleted when the
1170 corresponding architecture object is deleted.
1172 When a previously created architecture is re-selected, the
1173 per-architecture data-pointer for that previous architecture is
1174 restored. INIT() is not re-called.
1176 Multiple registrarants for any architecture are allowed (and
1177 strongly encouraged). */
1179 struct gdbarch_data;
1181 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1182 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1183 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1184 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1185 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1186 struct gdbarch_data *data,
1189 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1193 /* Register per-architecture memory region.
1195 Provide a memory-region swap mechanism. Per-architecture memory
1196 region are created. These memory regions are swapped whenever the
1197 architecture is changed. For a new architecture, the memory region
1198 is initialized with zero (0) and the INIT function is called.
1200 Memory regions are swapped / initialized in the order that they are
1201 registered. NULL DATA and/or INIT values can be specified.
1203 New code should use gdbarch_data_register_*(). */
1205 typedef void (gdbarch_swap_ftype) (void);
1206 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1207 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1211 /* Set the dynamic target-system-dependent parameters (architecture,
1212 byte-order, ...) using information found in the BFD */
1214 extern void set_gdbarch_from_file (bfd *);
1217 /* Initialize the current architecture to the "first" one we find on
1220 extern void initialize_current_architecture (void);
1222 /* gdbarch trace variable */
1223 extern int gdbarch_debug;
1225 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1230 #../move-if-change new-gdbarch.h gdbarch.h
1231 compare_new gdbarch.h
1238 exec > new-gdbarch.c
1243 #include "arch-utils.h"
1246 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1249 #include "floatformat.h"
1251 #include "gdb_assert.h"
1252 #include "gdb_string.h"
1253 #include "gdb-events.h"
1254 #include "reggroups.h"
1256 #include "gdb_obstack.h"
1258 /* Static function declarations */
1260 static void alloc_gdbarch_data (struct gdbarch *);
1262 /* Non-zero if we want to trace architecture code. */
1264 #ifndef GDBARCH_DEBUG
1265 #define GDBARCH_DEBUG 0
1267 int gdbarch_debug = GDBARCH_DEBUG;
1271 # gdbarch open the gdbarch object
1273 printf "/* Maintain the struct gdbarch object */\n"
1275 printf "struct gdbarch\n"
1277 printf " /* Has this architecture been fully initialized? */\n"
1278 printf " int initialized_p;\n"
1280 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1281 printf " struct obstack *obstack;\n"
1283 printf " /* basic architectural information */\n"
1284 function_list |
while do_read
1288 printf " ${returntype} ${function};\n"
1292 printf " /* target specific vector. */\n"
1293 printf " struct gdbarch_tdep *tdep;\n"
1294 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1296 printf " /* per-architecture data-pointers */\n"
1297 printf " unsigned nr_data;\n"
1298 printf " void **data;\n"
1300 printf " /* per-architecture swap-regions */\n"
1301 printf " struct gdbarch_swap *swap;\n"
1304 /* Multi-arch values.
1306 When extending this structure you must:
1308 Add the field below.
1310 Declare set/get functions and define the corresponding
1313 gdbarch_alloc(): If zero/NULL is not a suitable default,
1314 initialize the new field.
1316 verify_gdbarch(): Confirm that the target updated the field
1319 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1322 \`\`startup_gdbarch()'': Append an initial value to the static
1323 variable (base values on the host's c-type system).
1325 get_gdbarch(): Implement the set/get functions (probably using
1326 the macro's as shortcuts).
1331 function_list |
while do_read
1333 if class_is_variable_p
1335 printf " ${returntype} ${function};\n"
1336 elif class_is_function_p
1338 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1343 # A pre-initialized vector
1347 /* The default architecture uses host values (for want of a better
1351 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1353 printf "struct gdbarch startup_gdbarch =\n"
1355 printf " 1, /* Always initialized. */\n"
1356 printf " NULL, /* The obstack. */\n"
1357 printf " /* basic architecture information */\n"
1358 function_list |
while do_read
1362 printf " ${staticdefault}, /* ${function} */\n"
1366 /* target specific vector and its dump routine */
1368 /*per-architecture data-pointers and swap regions */
1370 /* Multi-arch values */
1372 function_list |
while do_read
1374 if class_is_function_p || class_is_variable_p
1376 printf " ${staticdefault}, /* ${function} */\n"
1380 /* startup_gdbarch() */
1383 struct gdbarch *current_gdbarch = &startup_gdbarch;
1386 # Create a new gdbarch struct
1389 /* Create a new \`\`struct gdbarch'' based on information provided by
1390 \`\`struct gdbarch_info''. */
1395 gdbarch_alloc (const struct gdbarch_info *info,
1396 struct gdbarch_tdep *tdep)
1398 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1399 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1400 the current local architecture and not the previous global
1401 architecture. This ensures that the new architectures initial
1402 values are not influenced by the previous architecture. Once
1403 everything is parameterised with gdbarch, this will go away. */
1404 struct gdbarch *current_gdbarch;
1406 /* Create an obstack for allocating all the per-architecture memory,
1407 then use that to allocate the architecture vector. */
1408 struct obstack *obstack = XMALLOC (struct obstack);
1409 obstack_init (obstack);
1410 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1411 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1412 current_gdbarch->obstack = obstack;
1414 alloc_gdbarch_data (current_gdbarch);
1416 current_gdbarch->tdep = tdep;
1419 function_list |
while do_read
1423 printf " current_gdbarch->${function} = info->${function};\n"
1427 printf " /* Force the explicit initialization of these. */\n"
1428 function_list |
while do_read
1430 if class_is_function_p || class_is_variable_p
1432 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1434 printf " current_gdbarch->${function} = ${predefault};\n"
1439 /* gdbarch_alloc() */
1441 return current_gdbarch;
1445 # Free a gdbarch struct.
1449 /* Allocate extra space using the per-architecture obstack. */
1452 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1454 void *data = obstack_alloc (arch->obstack, size);
1455 memset (data, 0, size);
1460 /* Free a gdbarch struct. This should never happen in normal
1461 operation --- once you've created a gdbarch, you keep it around.
1462 However, if an architecture's init function encounters an error
1463 building the structure, it may need to clean up a partially
1464 constructed gdbarch. */
1467 gdbarch_free (struct gdbarch *arch)
1469 struct obstack *obstack;
1470 gdb_assert (arch != NULL);
1471 gdb_assert (!arch->initialized_p);
1472 obstack = arch->obstack;
1473 obstack_free (obstack, 0); /* Includes the ARCH. */
1478 # verify a new architecture
1482 /* Ensure that all values in a GDBARCH are reasonable. */
1484 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1485 just happens to match the global variable \`\`current_gdbarch''. That
1486 way macros refering to that variable get the local and not the global
1487 version - ulgh. Once everything is parameterised with gdbarch, this
1491 verify_gdbarch (struct gdbarch *current_gdbarch)
1493 struct ui_file *log;
1494 struct cleanup *cleanups;
1497 log = mem_fileopen ();
1498 cleanups = make_cleanup_ui_file_delete (log);
1500 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1501 fprintf_unfiltered (log, "\n\tbyte-order");
1502 if (current_gdbarch->bfd_arch_info == NULL)
1503 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1504 /* Check those that need to be defined for the given multi-arch level. */
1506 function_list |
while do_read
1508 if class_is_function_p || class_is_variable_p
1510 if [ "x${invalid_p}" = "x0" ]
1512 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1513 elif class_is_predicate_p
1515 printf " /* Skip verify of ${function}, has predicate */\n"
1516 # FIXME: See do_read for potential simplification
1517 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1519 printf " if (${invalid_p})\n"
1520 printf " current_gdbarch->${function} = ${postdefault};\n"
1521 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1523 printf " if (current_gdbarch->${function} == ${predefault})\n"
1524 printf " current_gdbarch->${function} = ${postdefault};\n"
1525 elif [ -n "${postdefault}" ]
1527 printf " if (current_gdbarch->${function} == 0)\n"
1528 printf " current_gdbarch->${function} = ${postdefault};\n"
1529 elif [ -n "${invalid_p}" ]
1531 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1532 printf " && (${invalid_p}))\n"
1533 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1534 elif [ -n "${predefault}" ]
1536 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1537 printf " && (current_gdbarch->${function} == ${predefault}))\n"
1538 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1543 buf = ui_file_xstrdup (log, &dummy);
1544 make_cleanup (xfree, buf);
1545 if (strlen (buf) > 0)
1546 internal_error (__FILE__, __LINE__,
1547 "verify_gdbarch: the following are invalid ...%s",
1549 do_cleanups (cleanups);
1553 # dump the structure
1557 /* Print out the details of the current architecture. */
1559 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1560 just happens to match the global variable \`\`current_gdbarch''. That
1561 way macros refering to that variable get the local and not the global
1562 version - ulgh. Once everything is parameterised with gdbarch, this
1566 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1568 fprintf_unfiltered (file,
1569 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1572 function_list |
sort -t: -k 3 |
while do_read
1574 # First the predicate
1575 if class_is_predicate_p
1577 if class_is_multiarch_p
1579 printf " fprintf_unfiltered (file,\n"
1580 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1581 printf " gdbarch_${function}_p (current_gdbarch));\n"
1583 printf "#ifdef ${macro}_P\n"
1584 printf " fprintf_unfiltered (file,\n"
1585 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1586 printf " \"${macro}_P()\",\n"
1587 printf " XSTRING (${macro}_P ()));\n"
1588 printf " fprintf_unfiltered (file,\n"
1589 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1590 printf " ${macro}_P ());\n"
1594 # multiarch functions don't have macros.
1595 if class_is_multiarch_p
1597 printf " fprintf_unfiltered (file,\n"
1598 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1599 printf " (long) current_gdbarch->${function});\n"
1602 # Print the macro definition.
1603 printf "#ifdef ${macro}\n"
1604 if class_is_function_p
1606 printf " fprintf_unfiltered (file,\n"
1607 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1608 printf " \"${macro}(${actual})\",\n"
1609 printf " XSTRING (${macro} (${actual})));\n"
1611 printf " fprintf_unfiltered (file,\n"
1612 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1613 printf " XSTRING (${macro}));\n"
1615 if [ "x${print_p}" = "x()" ]
1617 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1618 elif [ "x${print_p}" = "x0" ]
1620 printf " /* skip print of ${macro}, print_p == 0. */\n"
1621 elif [ -n "${print_p}" ]
1623 printf " if (${print_p})\n"
1624 printf " fprintf_unfiltered (file,\n"
1625 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1626 printf " ${print});\n"
1627 elif class_is_function_p
1629 printf " fprintf_unfiltered (file,\n"
1630 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1631 printf " (long) current_gdbarch->${function}\n"
1632 printf " /*${macro} ()*/);\n"
1634 printf " fprintf_unfiltered (file,\n"
1635 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1636 printf " ${print});\n"
1641 if (current_gdbarch->dump_tdep != NULL)
1642 current_gdbarch->dump_tdep (current_gdbarch, file);
1650 struct gdbarch_tdep *
1651 gdbarch_tdep (struct gdbarch *gdbarch)
1653 if (gdbarch_debug >= 2)
1654 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1655 return gdbarch->tdep;
1659 function_list |
while do_read
1661 if class_is_predicate_p
1665 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1667 printf " gdb_assert (gdbarch != NULL);\n"
1668 printf " return ${predicate};\n"
1671 if class_is_function_p
1674 printf "${returntype}\n"
1675 if [ "x${formal}" = "xvoid" ]
1677 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1679 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1682 printf " gdb_assert (gdbarch != NULL);\n"
1683 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1684 if class_is_predicate_p
&& test -n "${predefault}"
1686 # Allow a call to a function with a predicate.
1687 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1689 printf " if (gdbarch_debug >= 2)\n"
1690 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1691 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1693 if class_is_multiarch_p
1700 if class_is_multiarch_p
1702 params
="gdbarch, ${actual}"
1707 if [ "x${returntype}" = "xvoid" ]
1709 printf " gdbarch->${function} (${params});\n"
1711 printf " return gdbarch->${function} (${params});\n"
1716 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1717 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1719 printf " gdbarch->${function} = ${function};\n"
1721 elif class_is_variable_p
1724 printf "${returntype}\n"
1725 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1727 printf " gdb_assert (gdbarch != NULL);\n"
1728 if [ "x${invalid_p}" = "x0" ]
1730 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1731 elif [ -n "${invalid_p}" ]
1733 printf " /* Check variable is valid. */\n"
1734 printf " gdb_assert (!(${invalid_p}));\n"
1735 elif [ -n "${predefault}" ]
1737 printf " /* Check variable changed from pre-default. */\n"
1738 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1740 printf " if (gdbarch_debug >= 2)\n"
1741 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1742 printf " return gdbarch->${function};\n"
1746 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1747 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1749 printf " gdbarch->${function} = ${function};\n"
1751 elif class_is_info_p
1754 printf "${returntype}\n"
1755 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1757 printf " gdb_assert (gdbarch != NULL);\n"
1758 printf " if (gdbarch_debug >= 2)\n"
1759 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1760 printf " return gdbarch->${function};\n"
1765 # All the trailing guff
1769 /* Keep a registry of per-architecture data-pointers required by GDB
1776 gdbarch_data_pre_init_ftype *pre_init;
1777 gdbarch_data_post_init_ftype *post_init;
1780 struct gdbarch_data_registration
1782 struct gdbarch_data *data;
1783 struct gdbarch_data_registration *next;
1786 struct gdbarch_data_registry
1789 struct gdbarch_data_registration *registrations;
1792 struct gdbarch_data_registry gdbarch_data_registry =
1797 static struct gdbarch_data *
1798 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1799 gdbarch_data_post_init_ftype *post_init)
1801 struct gdbarch_data_registration **curr;
1802 /* Append the new registraration. */
1803 for (curr = &gdbarch_data_registry.registrations;
1805 curr = &(*curr)->next);
1806 (*curr) = XMALLOC (struct gdbarch_data_registration);
1807 (*curr)->next = NULL;
1808 (*curr)->data = XMALLOC (struct gdbarch_data);
1809 (*curr)->data->index = gdbarch_data_registry.nr++;
1810 (*curr)->data->pre_init = pre_init;
1811 (*curr)->data->post_init = post_init;
1812 (*curr)->data->init_p = 1;
1813 return (*curr)->data;
1816 struct gdbarch_data *
1817 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1819 return gdbarch_data_register (pre_init, NULL);
1822 struct gdbarch_data *
1823 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1825 return gdbarch_data_register (NULL, post_init);
1828 /* Create/delete the gdbarch data vector. */
1831 alloc_gdbarch_data (struct gdbarch *gdbarch)
1833 gdb_assert (gdbarch->data == NULL);
1834 gdbarch->nr_data = gdbarch_data_registry.nr;
1835 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1838 /* Initialize the current value of the specified per-architecture
1842 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1843 struct gdbarch_data *data,
1846 gdb_assert (data->index < gdbarch->nr_data);
1847 gdb_assert (gdbarch->data[data->index] == NULL);
1848 gdb_assert (data->pre_init == NULL);
1849 gdbarch->data[data->index] = pointer;
1852 /* Return the current value of the specified per-architecture
1856 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1858 gdb_assert (data->index < gdbarch->nr_data);
1859 if (gdbarch->data[data->index] == NULL)
1861 /* The data-pointer isn't initialized, call init() to get a
1863 if (data->pre_init != NULL)
1864 /* Mid architecture creation: pass just the obstack, and not
1865 the entire architecture, as that way it isn't possible for
1866 pre-init code to refer to undefined architecture
1868 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1869 else if (gdbarch->initialized_p
1870 && data->post_init != NULL)
1871 /* Post architecture creation: pass the entire architecture
1872 (as all fields are valid), but be careful to also detect
1873 recursive references. */
1875 gdb_assert (data->init_p);
1877 gdbarch->data[data->index] = data->post_init (gdbarch);
1881 /* The architecture initialization hasn't completed - punt -
1882 hope that the caller knows what they are doing. Once
1883 deprecated_set_gdbarch_data has been initialized, this can be
1884 changed to an internal error. */
1886 gdb_assert (gdbarch->data[data->index] != NULL);
1888 return gdbarch->data[data->index];
1893 /* Keep a registry of swapped data required by GDB modules. */
1898 struct gdbarch_swap_registration *source;
1899 struct gdbarch_swap *next;
1902 struct gdbarch_swap_registration
1905 unsigned long sizeof_data;
1906 gdbarch_swap_ftype *init;
1907 struct gdbarch_swap_registration *next;
1910 struct gdbarch_swap_registry
1913 struct gdbarch_swap_registration *registrations;
1916 struct gdbarch_swap_registry gdbarch_swap_registry =
1922 deprecated_register_gdbarch_swap (void *data,
1923 unsigned long sizeof_data,
1924 gdbarch_swap_ftype *init)
1926 struct gdbarch_swap_registration **rego;
1927 for (rego = &gdbarch_swap_registry.registrations;
1929 rego = &(*rego)->next);
1930 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1931 (*rego)->next = NULL;
1932 (*rego)->init = init;
1933 (*rego)->data = data;
1934 (*rego)->sizeof_data = sizeof_data;
1938 current_gdbarch_swap_init_hack (void)
1940 struct gdbarch_swap_registration *rego;
1941 struct gdbarch_swap **curr = ¤t_gdbarch->swap;
1942 for (rego = gdbarch_swap_registry.registrations;
1946 if (rego->data != NULL)
1948 (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1949 struct gdbarch_swap);
1950 (*curr)->source = rego;
1951 (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1953 (*curr)->next = NULL;
1954 curr = &(*curr)->next;
1956 if (rego->init != NULL)
1961 static struct gdbarch *
1962 current_gdbarch_swap_out_hack (void)
1964 struct gdbarch *old_gdbarch = current_gdbarch;
1965 struct gdbarch_swap *curr;
1967 gdb_assert (old_gdbarch != NULL);
1968 for (curr = old_gdbarch->swap;
1972 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1973 memset (curr->source->data, 0, curr->source->sizeof_data);
1975 current_gdbarch = NULL;
1980 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1982 struct gdbarch_swap *curr;
1984 gdb_assert (current_gdbarch == NULL);
1985 for (curr = new_gdbarch->swap;
1988 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1989 current_gdbarch = new_gdbarch;
1993 /* Keep a registry of the architectures known by GDB. */
1995 struct gdbarch_registration
1997 enum bfd_architecture bfd_architecture;
1998 gdbarch_init_ftype *init;
1999 gdbarch_dump_tdep_ftype *dump_tdep;
2000 struct gdbarch_list *arches;
2001 struct gdbarch_registration *next;
2004 static struct gdbarch_registration *gdbarch_registry = NULL;
2007 append_name (const char ***buf, int *nr, const char *name)
2009 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2015 gdbarch_printable_names (void)
2017 /* Accumulate a list of names based on the registed list of
2019 enum bfd_architecture a;
2021 const char **arches = NULL;
2022 struct gdbarch_registration *rego;
2023 for (rego = gdbarch_registry;
2027 const struct bfd_arch_info *ap;
2028 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2030 internal_error (__FILE__, __LINE__,
2031 "gdbarch_architecture_names: multi-arch unknown");
2034 append_name (&arches, &nr_arches, ap->printable_name);
2039 append_name (&arches, &nr_arches, NULL);
2045 gdbarch_register (enum bfd_architecture bfd_architecture,
2046 gdbarch_init_ftype *init,
2047 gdbarch_dump_tdep_ftype *dump_tdep)
2049 struct gdbarch_registration **curr;
2050 const struct bfd_arch_info *bfd_arch_info;
2051 /* Check that BFD recognizes this architecture */
2052 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2053 if (bfd_arch_info == NULL)
2055 internal_error (__FILE__, __LINE__,
2056 "gdbarch: Attempt to register unknown architecture (%d)",
2059 /* Check that we haven't seen this architecture before */
2060 for (curr = &gdbarch_registry;
2062 curr = &(*curr)->next)
2064 if (bfd_architecture == (*curr)->bfd_architecture)
2065 internal_error (__FILE__, __LINE__,
2066 "gdbarch: Duplicate registraration of architecture (%s)",
2067 bfd_arch_info->printable_name);
2071 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2072 bfd_arch_info->printable_name,
2075 (*curr) = XMALLOC (struct gdbarch_registration);
2076 (*curr)->bfd_architecture = bfd_architecture;
2077 (*curr)->init = init;
2078 (*curr)->dump_tdep = dump_tdep;
2079 (*curr)->arches = NULL;
2080 (*curr)->next = NULL;
2084 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2085 gdbarch_init_ftype *init)
2087 gdbarch_register (bfd_architecture, init, NULL);
2091 /* Look for an architecture using gdbarch_info. Base search on only
2092 BFD_ARCH_INFO and BYTE_ORDER. */
2094 struct gdbarch_list *
2095 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2096 const struct gdbarch_info *info)
2098 for (; arches != NULL; arches = arches->next)
2100 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2102 if (info->byte_order != arches->gdbarch->byte_order)
2104 if (info->osabi != arches->gdbarch->osabi)
2112 /* Find an architecture that matches the specified INFO. Create a new
2113 architecture if needed. Return that new architecture. Assumes
2114 that there is no current architecture. */
2116 static struct gdbarch *
2117 find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
2119 struct gdbarch *new_gdbarch;
2120 struct gdbarch_registration *rego;
2122 /* The existing architecture has been swapped out - all this code
2123 works from a clean slate. */
2124 gdb_assert (current_gdbarch == NULL);
2126 /* Fill in missing parts of the INFO struct using a number of
2127 sources: "set ..."; INFOabfd supplied; and the existing
2129 gdbarch_info_fill (old_gdbarch, &info);
2131 /* Must have found some sort of architecture. */
2132 gdb_assert (info.bfd_arch_info != NULL);
2136 fprintf_unfiltered (gdb_stdlog,
2137 "find_arch_by_info: info.bfd_arch_info %s\n",
2138 (info.bfd_arch_info != NULL
2139 ? info.bfd_arch_info->printable_name
2141 fprintf_unfiltered (gdb_stdlog,
2142 "find_arch_by_info: info.byte_order %d (%s)\n",
2144 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2145 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2147 fprintf_unfiltered (gdb_stdlog,
2148 "find_arch_by_info: info.osabi %d (%s)\n",
2149 info.osabi, gdbarch_osabi_name (info.osabi));
2150 fprintf_unfiltered (gdb_stdlog,
2151 "find_arch_by_info: info.abfd 0x%lx\n",
2153 fprintf_unfiltered (gdb_stdlog,
2154 "find_arch_by_info: info.tdep_info 0x%lx\n",
2155 (long) info.tdep_info);
2158 /* Find the tdep code that knows about this architecture. */
2159 for (rego = gdbarch_registry;
2162 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2167 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2168 "No matching architecture\n");
2172 /* Ask the tdep code for an architecture that matches "info". */
2173 new_gdbarch = rego->init (info, rego->arches);
2175 /* Did the tdep code like it? No. Reject the change and revert to
2176 the old architecture. */
2177 if (new_gdbarch == NULL)
2180 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2181 "Target rejected architecture\n");
2185 /* Is this a pre-existing architecture (as determined by already
2186 being initialized)? Move it to the front of the architecture
2187 list (keeping the list sorted Most Recently Used). */
2188 if (new_gdbarch->initialized_p)
2190 struct gdbarch_list **list;
2191 struct gdbarch_list *this;
2193 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2194 "Previous architecture 0x%08lx (%s) selected\n",
2196 new_gdbarch->bfd_arch_info->printable_name);
2197 /* Find the existing arch in the list. */
2198 for (list = ®o->arches;
2199 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2200 list = &(*list)->next);
2201 /* It had better be in the list of architectures. */
2202 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2205 (*list) = this->next;
2206 /* Insert THIS at the front. */
2207 this->next = rego->arches;
2208 rego->arches = this;
2213 /* It's a new architecture. */
2215 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2216 "New architecture 0x%08lx (%s) selected\n",
2218 new_gdbarch->bfd_arch_info->printable_name);
2220 /* Insert the new architecture into the front of the architecture
2221 list (keep the list sorted Most Recently Used). */
2223 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2224 this->next = rego->arches;
2225 this->gdbarch = new_gdbarch;
2226 rego->arches = this;
2229 /* Check that the newly installed architecture is valid. Plug in
2230 any post init values. */
2231 new_gdbarch->dump_tdep = rego->dump_tdep;
2232 verify_gdbarch (new_gdbarch);
2233 new_gdbarch->initialized_p = 1;
2235 /* Initialize any per-architecture swap areas. This phase requires
2236 a valid global CURRENT_GDBARCH. Set it momentarially, and then
2237 swap the entire architecture out. */
2238 current_gdbarch = new_gdbarch;
2239 current_gdbarch_swap_init_hack ();
2240 current_gdbarch_swap_out_hack ();
2243 gdbarch_dump (new_gdbarch, gdb_stdlog);
2249 gdbarch_find_by_info (struct gdbarch_info info)
2251 /* Save the previously selected architecture, setting the global to
2252 NULL. This stops things like gdbarch->init() trying to use the
2253 previous architecture's configuration. The previous architecture
2254 may not even be of the same architecture family. The most recent
2255 architecture of the same family is found at the head of the
2256 rego->arches list. */
2257 struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2259 /* Find the specified architecture. */
2260 struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
2262 /* Restore the existing architecture. */
2263 gdb_assert (current_gdbarch == NULL);
2264 current_gdbarch_swap_in_hack (old_gdbarch);
2269 /* Make the specified architecture current, swapping the existing one
2273 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2275 gdb_assert (new_gdbarch != NULL);
2276 gdb_assert (current_gdbarch != NULL);
2277 gdb_assert (new_gdbarch->initialized_p);
2278 current_gdbarch_swap_out_hack ();
2279 current_gdbarch_swap_in_hack (new_gdbarch);
2280 architecture_changed_event ();
2283 extern void _initialize_gdbarch (void);
2286 _initialize_gdbarch (void)
2288 struct cmd_list_element *c;
2290 add_show_from_set (add_set_cmd ("arch",
2293 (char *)&gdbarch_debug,
2294 "Set architecture debugging.\\n\\
2295 When non-zero, architecture debugging is enabled.", &setdebuglist),
2297 c = add_set_cmd ("archdebug",
2300 (char *)&gdbarch_debug,
2301 "Set architecture debugging.\\n\\
2302 When non-zero, architecture debugging is enabled.", &setlist);
2304 deprecate_cmd (c, "set debug arch");
2305 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2311 #../move-if-change new-gdbarch.c gdbarch.c
2312 compare_new gdbarch.c