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 # DEPRECATED_USE_GENERIC_DUMMY_FRAMES can be deleted. Always true.
521 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
522 # Implement PUSH_RETURN_ADDRESS, and then merge in
523 # DEPRECATED_PUSH_RETURN_ADDRESS.
524 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
525 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
526 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
527 # DEPRECATED_REGISTER_SIZE can be deleted.
528 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
529 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::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_WORDS can be deleted.
535 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
536 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
537 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
538 # DEPRECATED_FIX_CALL_DUMMY can be deleted. For the SPARC, implement
539 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
540 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
541 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
542 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
543 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
544 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
546 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
547 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
548 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
549 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
550 # MAP a GDB RAW register number onto a simulator register number. See
551 # also include/...-sim.h.
552 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
553 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
554 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
555 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
556 # setjmp/longjmp support.
557 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
558 # NOTE: cagney/2002-11-24: This function with predicate has a valid
559 # (callable) initial value. As a consequence, even when the predicate
560 # is false, the corresponding function works. This simplifies the
561 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
562 # doesn't need to be modified.
563 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
564 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
566 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
567 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
569 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
570 # For raw <-> cooked register conversions, replaced by pseudo registers.
571 F::DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr
572 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
573 # For raw <-> cooked register conversions, replaced by pseudo registers.
574 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
575 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
576 # For raw <-> cooked register conversions, replaced by pseudo registers.
577 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
579 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
580 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
581 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
583 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
584 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
585 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
587 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
588 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
589 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
591 # It has been suggested that this, well actually its predecessor,
592 # should take the type/value of the function to be called and not the
593 # return type. This is left as an exercise for the reader.
595 M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf
597 # The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
598 # STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
601 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
602 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
603 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
604 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
605 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
606 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
608 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
609 # ABI suitable for the implementation of a robust extract
610 # struct-convention return-value address method (the sparc saves the
611 # address in the callers frame). All the other cases so far examined,
612 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
613 # erreneous - the code was incorrectly assuming that the return-value
614 # address, stored in a register, was preserved across the entire
617 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
618 # the ABIs that are still to be analyzed - perhaps this should simply
619 # be deleted. The commented out extract_returned_value_address method
620 # is provided as a starting point for the 32-bit SPARC. It, or
621 # something like it, along with changes to both infcmd.c and stack.c
622 # will be needed for that case to work. NB: It is passed the callers
623 # frame since it is only after the callee has returned that this
626 #M:::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
627 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
629 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
630 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
632 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
633 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
634 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
635 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
636 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
637 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
638 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0
639 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0
641 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
643 v::FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:::0
644 # DEPRECATED_FRAMELESS_FUNCTION_INVOCATION is not needed. The new
645 # frame code works regardless of the type of frame - frameless,
646 # stackless, or normal.
647 F::DEPRECATED_FRAMELESS_FUNCTION_INVOCATION:int:deprecated_frameless_function_invocation:struct frame_info *fi:fi
648 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
649 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
650 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC. Please
651 # note, per UNWIND_PC's doco, that while the two have similar
652 # interfaces they have very different underlying implementations.
653 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
654 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
655 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
656 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
657 # frame-base. Enable frame-base before frame-unwind.
658 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
659 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
660 # frame-base. Enable frame-base before frame-unwind.
661 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
662 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
663 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
665 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
666 # to frame_align and the requirement that methods such as
667 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
669 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
670 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
671 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
672 # stabs_argument_has_addr.
673 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
674 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
675 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
676 v:2:PARM_BOUNDARY:int:parm_boundary
678 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
679 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
680 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
681 m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0
682 # On some machines there are bits in addresses which are not really
683 # part of the address, but are used by the kernel, the hardware, etc.
684 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
685 # we get a "real" address such as one would find in a symbol table.
686 # This is used only for addresses of instructions, and even then I'm
687 # not sure it's used in all contexts. It exists to deal with there
688 # being a few stray bits in the PC which would mislead us, not as some
689 # sort of generic thing to handle alignment or segmentation (it's
690 # possible it should be in TARGET_READ_PC instead).
691 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
692 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
694 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
695 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
696 # the target needs software single step. An ISA method to implement it.
698 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
699 # using the breakpoint system instead of blatting memory directly (as with rs6000).
701 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
702 # single step. If not, then implement single step using breakpoints.
703 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
704 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
705 # disassembler. Perhaphs objdump can handle it?
706 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
707 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
710 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
711 # evaluates non-zero, this is the address where the debugger will place
712 # a step-resume breakpoint to get us past the dynamic linker.
713 m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
714 # For SVR4 shared libraries, each call goes through a small piece of
715 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
716 # to nonzero if we are currently stopped in one of these.
717 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
719 # Some systems also have trampoline code for returning from shared libs.
720 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
722 # A target might have problems with watchpoints as soon as the stack
723 # frame of the current function has been destroyed. This mostly happens
724 # as the first action in a funtion's epilogue. in_function_epilogue_p()
725 # is defined to return a non-zero value if either the given addr is one
726 # instruction after the stack destroying instruction up to the trailing
727 # return instruction or if we can figure out that the stack frame has
728 # already been invalidated regardless of the value of addr. Targets
729 # which don't suffer from that problem could just let this functionality
731 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
732 # Given a vector of command-line arguments, return a newly allocated
733 # string which, when passed to the create_inferior function, will be
734 # parsed (on Unix systems, by the shell) to yield the same vector.
735 # This function should call error() if the argument vector is not
736 # representable for this target or if this target does not support
737 # command-line arguments.
738 # ARGC is the number of elements in the vector.
739 # ARGV is an array of strings, one per argument.
740 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
741 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
742 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
743 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
744 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
745 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
746 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
747 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
748 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
749 # Is a register in a group
750 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
751 # Fetch the pointer to the ith function argument.
752 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
754 # Return the appropriate register set for a core file section with
755 # name SECT_NAME and size SECT_SIZE.
756 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
763 exec > new-gdbarch.log
764 function_list |
while do_read
767 ${class} ${macro}(${actual})
768 ${returntype} ${function} ($formal)${attrib}
772 eval echo \"\ \ \ \
${r}=\
${${r}}\"
774 if class_is_predicate_p
&& fallback_default_p
776 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
780 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
782 echo "Error: postdefault is useless when invalid_p=0" 1>&2
786 if class_is_multiarch_p
788 if class_is_predicate_p
; then :
789 elif test "x${predefault}" = "x"
791 echo "Error: pure multi-arch function must have a predefault" 1>&2
800 compare_new gdbarch.log
806 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
808 /* Dynamic architecture support for GDB, the GNU debugger.
810 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
811 Software Foundation, Inc.
813 This file is part of GDB.
815 This program is free software; you can redistribute it and/or modify
816 it under the terms of the GNU General Public License as published by
817 the Free Software Foundation; either version 2 of the License, or
818 (at your option) any later version.
820 This program is distributed in the hope that it will be useful,
821 but WITHOUT ANY WARRANTY; without even the implied warranty of
822 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
823 GNU General Public License for more details.
825 You should have received a copy of the GNU General Public License
826 along with this program; if not, write to the Free Software
827 Foundation, Inc., 59 Temple Place - Suite 330,
828 Boston, MA 02111-1307, USA. */
830 /* This file was created with the aid of \`\`gdbarch.sh''.
832 The Bourne shell script \`\`gdbarch.sh'' creates the files
833 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
834 against the existing \`\`gdbarch.[hc]''. Any differences found
837 If editing this file, please also run gdbarch.sh and merge any
838 changes into that script. Conversely, when making sweeping changes
839 to this file, modifying gdbarch.sh and using its output may prove
860 struct minimal_symbol;
864 struct disassemble_info;
868 extern struct gdbarch *current_gdbarch;
871 /* If any of the following are defined, the target wasn't correctly
874 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
875 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
882 printf "/* The following are pre-initialized by GDBARCH. */\n"
883 function_list |
while do_read
888 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
889 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
890 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
891 printf "#error \"Non multi-arch definition of ${macro}\"\n"
893 printf "#if !defined (${macro})\n"
894 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
902 printf "/* The following are initialized by the target dependent code. */\n"
903 function_list |
while do_read
905 if [ -n "${comment}" ]
907 echo "${comment}" |
sed \
912 if class_is_multiarch_p
914 if class_is_predicate_p
917 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
920 if class_is_predicate_p
923 printf "#if defined (${macro})\n"
924 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
925 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
926 printf "#if !defined (${macro}_P)\n"
927 printf "#define ${macro}_P() (1)\n"
931 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
932 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
933 printf "#error \"Non multi-arch definition of ${macro}\"\n"
935 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
936 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
940 if class_is_variable_p
943 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
944 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
945 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
946 printf "#error \"Non multi-arch definition of ${macro}\"\n"
948 printf "#if !defined (${macro})\n"
949 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
952 if class_is_function_p
955 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
957 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
958 elif class_is_multiarch_p
960 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
962 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
964 if [ "x${formal}" = "xvoid" ]
966 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
968 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
970 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
971 if class_is_multiarch_p
; then :
973 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
974 printf "#error \"Non multi-arch definition of ${macro}\"\n"
976 if [ "x${actual}" = "x" ]
978 d
="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
979 elif [ "x${actual}" = "x-" ]
981 d
="#define ${macro} (gdbarch_${function} (current_gdbarch))"
983 d
="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
985 printf "#if !defined (${macro})\n"
986 if [ "x${actual}" = "x" ]
988 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
989 elif [ "x${actual}" = "x-" ]
991 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
993 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
1003 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1006 /* Mechanism for co-ordinating the selection of a specific
1009 GDB targets (*-tdep.c) can register an interest in a specific
1010 architecture. Other GDB components can register a need to maintain
1011 per-architecture data.
1013 The mechanisms below ensures that there is only a loose connection
1014 between the set-architecture command and the various GDB
1015 components. Each component can independently register their need
1016 to maintain architecture specific data with gdbarch.
1020 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1023 The more traditional mega-struct containing architecture specific
1024 data for all the various GDB components was also considered. Since
1025 GDB is built from a variable number of (fairly independent)
1026 components it was determined that the global aproach was not
1030 /* Register a new architectural family with GDB.
1032 Register support for the specified ARCHITECTURE with GDB. When
1033 gdbarch determines that the specified architecture has been
1034 selected, the corresponding INIT function is called.
1038 The INIT function takes two parameters: INFO which contains the
1039 information available to gdbarch about the (possibly new)
1040 architecture; ARCHES which is a list of the previously created
1041 \`\`struct gdbarch'' for this architecture.
1043 The INFO parameter is, as far as possible, be pre-initialized with
1044 information obtained from INFO.ABFD or the previously selected
1047 The ARCHES parameter is a linked list (sorted most recently used)
1048 of all the previously created architures for this architecture
1049 family. The (possibly NULL) ARCHES->gdbarch can used to access
1050 values from the previously selected architecture for this
1051 architecture family. The global \`\`current_gdbarch'' shall not be
1054 The INIT function shall return any of: NULL - indicating that it
1055 doesn't recognize the selected architecture; an existing \`\`struct
1056 gdbarch'' from the ARCHES list - indicating that the new
1057 architecture is just a synonym for an earlier architecture (see
1058 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1059 - that describes the selected architecture (see gdbarch_alloc()).
1061 The DUMP_TDEP function shall print out all target specific values.
1062 Care should be taken to ensure that the function works in both the
1063 multi-arch and non- multi-arch cases. */
1067 struct gdbarch *gdbarch;
1068 struct gdbarch_list *next;
1073 /* Use default: NULL (ZERO). */
1074 const struct bfd_arch_info *bfd_arch_info;
1076 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1079 /* Use default: NULL (ZERO). */
1082 /* Use default: NULL (ZERO). */
1083 struct gdbarch_tdep_info *tdep_info;
1085 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1086 enum gdb_osabi osabi;
1089 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1090 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1092 /* DEPRECATED - use gdbarch_register() */
1093 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1095 extern void gdbarch_register (enum bfd_architecture architecture,
1096 gdbarch_init_ftype *,
1097 gdbarch_dump_tdep_ftype *);
1100 /* Return a freshly allocated, NULL terminated, array of the valid
1101 architecture names. Since architectures are registered during the
1102 _initialize phase this function only returns useful information
1103 once initialization has been completed. */
1105 extern const char **gdbarch_printable_names (void);
1108 /* Helper function. Search the list of ARCHES for a GDBARCH that
1109 matches the information provided by INFO. */
1111 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1114 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1115 basic initialization using values obtained from the INFO andTDEP
1116 parameters. set_gdbarch_*() functions are called to complete the
1117 initialization of the object. */
1119 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1122 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1123 It is assumed that the caller freeds the \`\`struct
1126 extern void gdbarch_free (struct gdbarch *);
1129 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1130 obstack. The memory is freed when the corresponding architecture
1133 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1134 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1135 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1138 /* Helper function. Force an update of the current architecture.
1140 The actual architecture selected is determined by INFO, \`\`(gdb) set
1141 architecture'' et.al., the existing architecture and BFD's default
1142 architecture. INFO should be initialized to zero and then selected
1143 fields should be updated.
1145 Returns non-zero if the update succeeds */
1147 extern int gdbarch_update_p (struct gdbarch_info info);
1150 /* Helper function. Find an architecture matching info.
1152 INFO should be initialized using gdbarch_info_init, relevant fields
1153 set, and then finished using gdbarch_info_fill.
1155 Returns the corresponding architecture, or NULL if no matching
1156 architecture was found. "current_gdbarch" is not updated. */
1158 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1161 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1163 FIXME: kettenis/20031124: Of the functions that follow, only
1164 gdbarch_from_bfd is supposed to survive. The others will
1165 dissappear since in the future GDB will (hopefully) be truly
1166 multi-arch. However, for now we're still stuck with the concept of
1167 a single active architecture. */
1169 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1172 /* Register per-architecture data-pointer.
1174 Reserve space for a per-architecture data-pointer. An identifier
1175 for the reserved data-pointer is returned. That identifer should
1176 be saved in a local static variable.
1178 Memory for the per-architecture data shall be allocated using
1179 gdbarch_obstack_zalloc. That memory will be deleted when the
1180 corresponding architecture object is deleted.
1182 When a previously created architecture is re-selected, the
1183 per-architecture data-pointer for that previous architecture is
1184 restored. INIT() is not re-called.
1186 Multiple registrarants for any architecture are allowed (and
1187 strongly encouraged). */
1189 struct gdbarch_data;
1191 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1192 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1193 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1194 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1195 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1196 struct gdbarch_data *data,
1199 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1203 /* Register per-architecture memory region.
1205 Provide a memory-region swap mechanism. Per-architecture memory
1206 region are created. These memory regions are swapped whenever the
1207 architecture is changed. For a new architecture, the memory region
1208 is initialized with zero (0) and the INIT function is called.
1210 Memory regions are swapped / initialized in the order that they are
1211 registered. NULL DATA and/or INIT values can be specified.
1213 New code should use gdbarch_data_register_*(). */
1215 typedef void (gdbarch_swap_ftype) (void);
1216 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1217 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1221 /* Set the dynamic target-system-dependent parameters (architecture,
1222 byte-order, ...) using information found in the BFD */
1224 extern void set_gdbarch_from_file (bfd *);
1227 /* Initialize the current architecture to the "first" one we find on
1230 extern void initialize_current_architecture (void);
1232 /* gdbarch trace variable */
1233 extern int gdbarch_debug;
1235 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1240 #../move-if-change new-gdbarch.h gdbarch.h
1241 compare_new gdbarch.h
1248 exec > new-gdbarch.c
1253 #include "arch-utils.h"
1256 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1259 #include "floatformat.h"
1261 #include "gdb_assert.h"
1262 #include "gdb_string.h"
1263 #include "gdb-events.h"
1264 #include "reggroups.h"
1266 #include "gdb_obstack.h"
1268 /* Static function declarations */
1270 static void alloc_gdbarch_data (struct gdbarch *);
1272 /* Non-zero if we want to trace architecture code. */
1274 #ifndef GDBARCH_DEBUG
1275 #define GDBARCH_DEBUG 0
1277 int gdbarch_debug = GDBARCH_DEBUG;
1281 # gdbarch open the gdbarch object
1283 printf "/* Maintain the struct gdbarch object */\n"
1285 printf "struct gdbarch\n"
1287 printf " /* Has this architecture been fully initialized? */\n"
1288 printf " int initialized_p;\n"
1290 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1291 printf " struct obstack *obstack;\n"
1293 printf " /* basic architectural information */\n"
1294 function_list |
while do_read
1298 printf " ${returntype} ${function};\n"
1302 printf " /* target specific vector. */\n"
1303 printf " struct gdbarch_tdep *tdep;\n"
1304 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1306 printf " /* per-architecture data-pointers */\n"
1307 printf " unsigned nr_data;\n"
1308 printf " void **data;\n"
1310 printf " /* per-architecture swap-regions */\n"
1311 printf " struct gdbarch_swap *swap;\n"
1314 /* Multi-arch values.
1316 When extending this structure you must:
1318 Add the field below.
1320 Declare set/get functions and define the corresponding
1323 gdbarch_alloc(): If zero/NULL is not a suitable default,
1324 initialize the new field.
1326 verify_gdbarch(): Confirm that the target updated the field
1329 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1332 \`\`startup_gdbarch()'': Append an initial value to the static
1333 variable (base values on the host's c-type system).
1335 get_gdbarch(): Implement the set/get functions (probably using
1336 the macro's as shortcuts).
1341 function_list |
while do_read
1343 if class_is_variable_p
1345 printf " ${returntype} ${function};\n"
1346 elif class_is_function_p
1348 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1353 # A pre-initialized vector
1357 /* The default architecture uses host values (for want of a better
1361 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1363 printf "struct gdbarch startup_gdbarch =\n"
1365 printf " 1, /* Always initialized. */\n"
1366 printf " NULL, /* The obstack. */\n"
1367 printf " /* basic architecture information */\n"
1368 function_list |
while do_read
1372 printf " ${staticdefault}, /* ${function} */\n"
1376 /* target specific vector and its dump routine */
1378 /*per-architecture data-pointers and swap regions */
1380 /* Multi-arch values */
1382 function_list |
while do_read
1384 if class_is_function_p || class_is_variable_p
1386 printf " ${staticdefault}, /* ${function} */\n"
1390 /* startup_gdbarch() */
1393 struct gdbarch *current_gdbarch = &startup_gdbarch;
1396 # Create a new gdbarch struct
1399 /* Create a new \`\`struct gdbarch'' based on information provided by
1400 \`\`struct gdbarch_info''. */
1405 gdbarch_alloc (const struct gdbarch_info *info,
1406 struct gdbarch_tdep *tdep)
1408 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1409 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1410 the current local architecture and not the previous global
1411 architecture. This ensures that the new architectures initial
1412 values are not influenced by the previous architecture. Once
1413 everything is parameterised with gdbarch, this will go away. */
1414 struct gdbarch *current_gdbarch;
1416 /* Create an obstack for allocating all the per-architecture memory,
1417 then use that to allocate the architecture vector. */
1418 struct obstack *obstack = XMALLOC (struct obstack);
1419 obstack_init (obstack);
1420 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1421 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1422 current_gdbarch->obstack = obstack;
1424 alloc_gdbarch_data (current_gdbarch);
1426 current_gdbarch->tdep = tdep;
1429 function_list |
while do_read
1433 printf " current_gdbarch->${function} = info->${function};\n"
1437 printf " /* Force the explicit initialization of these. */\n"
1438 function_list |
while do_read
1440 if class_is_function_p || class_is_variable_p
1442 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1444 printf " current_gdbarch->${function} = ${predefault};\n"
1449 /* gdbarch_alloc() */
1451 return current_gdbarch;
1455 # Free a gdbarch struct.
1459 /* Allocate extra space using the per-architecture obstack. */
1462 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1464 void *data = obstack_alloc (arch->obstack, size);
1465 memset (data, 0, size);
1470 /* Free a gdbarch struct. This should never happen in normal
1471 operation --- once you've created a gdbarch, you keep it around.
1472 However, if an architecture's init function encounters an error
1473 building the structure, it may need to clean up a partially
1474 constructed gdbarch. */
1477 gdbarch_free (struct gdbarch *arch)
1479 struct obstack *obstack;
1480 gdb_assert (arch != NULL);
1481 gdb_assert (!arch->initialized_p);
1482 obstack = arch->obstack;
1483 obstack_free (obstack, 0); /* Includes the ARCH. */
1488 # verify a new architecture
1492 /* Ensure that all values in a GDBARCH are reasonable. */
1494 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1495 just happens to match the global variable \`\`current_gdbarch''. That
1496 way macros refering to that variable get the local and not the global
1497 version - ulgh. Once everything is parameterised with gdbarch, this
1501 verify_gdbarch (struct gdbarch *current_gdbarch)
1503 struct ui_file *log;
1504 struct cleanup *cleanups;
1507 log = mem_fileopen ();
1508 cleanups = make_cleanup_ui_file_delete (log);
1510 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1511 fprintf_unfiltered (log, "\n\tbyte-order");
1512 if (current_gdbarch->bfd_arch_info == NULL)
1513 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1514 /* Check those that need to be defined for the given multi-arch level. */
1516 function_list |
while do_read
1518 if class_is_function_p || class_is_variable_p
1520 if [ "x${invalid_p}" = "x0" ]
1522 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1523 elif class_is_predicate_p
1525 printf " /* Skip verify of ${function}, has predicate */\n"
1526 # FIXME: See do_read for potential simplification
1527 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1529 printf " if (${invalid_p})\n"
1530 printf " current_gdbarch->${function} = ${postdefault};\n"
1531 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1533 printf " if (current_gdbarch->${function} == ${predefault})\n"
1534 printf " current_gdbarch->${function} = ${postdefault};\n"
1535 elif [ -n "${postdefault}" ]
1537 printf " if (current_gdbarch->${function} == 0)\n"
1538 printf " current_gdbarch->${function} = ${postdefault};\n"
1539 elif [ -n "${invalid_p}" ]
1541 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1542 printf " && (${invalid_p}))\n"
1543 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1544 elif [ -n "${predefault}" ]
1546 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1547 printf " && (current_gdbarch->${function} == ${predefault}))\n"
1548 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1553 buf = ui_file_xstrdup (log, &dummy);
1554 make_cleanup (xfree, buf);
1555 if (strlen (buf) > 0)
1556 internal_error (__FILE__, __LINE__,
1557 "verify_gdbarch: the following are invalid ...%s",
1559 do_cleanups (cleanups);
1563 # dump the structure
1567 /* Print out the details of the current architecture. */
1569 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1570 just happens to match the global variable \`\`current_gdbarch''. That
1571 way macros refering to that variable get the local and not the global
1572 version - ulgh. Once everything is parameterised with gdbarch, this
1576 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1578 fprintf_unfiltered (file,
1579 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1582 function_list |
sort -t: -k 3 |
while do_read
1584 # First the predicate
1585 if class_is_predicate_p
1587 if class_is_multiarch_p
1589 printf " fprintf_unfiltered (file,\n"
1590 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1591 printf " gdbarch_${function}_p (current_gdbarch));\n"
1593 printf "#ifdef ${macro}_P\n"
1594 printf " fprintf_unfiltered (file,\n"
1595 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1596 printf " \"${macro}_P()\",\n"
1597 printf " XSTRING (${macro}_P ()));\n"
1598 printf " fprintf_unfiltered (file,\n"
1599 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1600 printf " ${macro}_P ());\n"
1604 # multiarch functions don't have macros.
1605 if class_is_multiarch_p
1607 printf " fprintf_unfiltered (file,\n"
1608 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1609 printf " (long) current_gdbarch->${function});\n"
1612 # Print the macro definition.
1613 printf "#ifdef ${macro}\n"
1614 if class_is_function_p
1616 printf " fprintf_unfiltered (file,\n"
1617 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1618 printf " \"${macro}(${actual})\",\n"
1619 printf " XSTRING (${macro} (${actual})));\n"
1621 printf " fprintf_unfiltered (file,\n"
1622 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1623 printf " XSTRING (${macro}));\n"
1625 if [ "x${print_p}" = "x()" ]
1627 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1628 elif [ "x${print_p}" = "x0" ]
1630 printf " /* skip print of ${macro}, print_p == 0. */\n"
1631 elif [ -n "${print_p}" ]
1633 printf " if (${print_p})\n"
1634 printf " fprintf_unfiltered (file,\n"
1635 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1636 printf " ${print});\n"
1637 elif class_is_function_p
1639 printf " fprintf_unfiltered (file,\n"
1640 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1641 printf " (long) current_gdbarch->${function}\n"
1642 printf " /*${macro} ()*/);\n"
1644 printf " fprintf_unfiltered (file,\n"
1645 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1646 printf " ${print});\n"
1651 if (current_gdbarch->dump_tdep != NULL)
1652 current_gdbarch->dump_tdep (current_gdbarch, file);
1660 struct gdbarch_tdep *
1661 gdbarch_tdep (struct gdbarch *gdbarch)
1663 if (gdbarch_debug >= 2)
1664 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1665 return gdbarch->tdep;
1669 function_list |
while do_read
1671 if class_is_predicate_p
1675 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1677 printf " gdb_assert (gdbarch != NULL);\n"
1678 printf " return ${predicate};\n"
1681 if class_is_function_p
1684 printf "${returntype}\n"
1685 if [ "x${formal}" = "xvoid" ]
1687 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1689 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1692 printf " gdb_assert (gdbarch != NULL);\n"
1693 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1694 if class_is_predicate_p
&& test -n "${predefault}"
1696 # Allow a call to a function with a predicate.
1697 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1699 printf " if (gdbarch_debug >= 2)\n"
1700 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1701 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1703 if class_is_multiarch_p
1710 if class_is_multiarch_p
1712 params
="gdbarch, ${actual}"
1717 if [ "x${returntype}" = "xvoid" ]
1719 printf " gdbarch->${function} (${params});\n"
1721 printf " return gdbarch->${function} (${params});\n"
1726 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1727 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1729 printf " gdbarch->${function} = ${function};\n"
1731 elif class_is_variable_p
1734 printf "${returntype}\n"
1735 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1737 printf " gdb_assert (gdbarch != NULL);\n"
1738 if [ "x${invalid_p}" = "x0" ]
1740 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1741 elif [ -n "${invalid_p}" ]
1743 printf " /* Check variable is valid. */\n"
1744 printf " gdb_assert (!(${invalid_p}));\n"
1745 elif [ -n "${predefault}" ]
1747 printf " /* Check variable changed from pre-default. */\n"
1748 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1750 printf " if (gdbarch_debug >= 2)\n"
1751 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1752 printf " return gdbarch->${function};\n"
1756 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1757 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1759 printf " gdbarch->${function} = ${function};\n"
1761 elif class_is_info_p
1764 printf "${returntype}\n"
1765 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1767 printf " gdb_assert (gdbarch != NULL);\n"
1768 printf " if (gdbarch_debug >= 2)\n"
1769 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1770 printf " return gdbarch->${function};\n"
1775 # All the trailing guff
1779 /* Keep a registry of per-architecture data-pointers required by GDB
1786 gdbarch_data_pre_init_ftype *pre_init;
1787 gdbarch_data_post_init_ftype *post_init;
1790 struct gdbarch_data_registration
1792 struct gdbarch_data *data;
1793 struct gdbarch_data_registration *next;
1796 struct gdbarch_data_registry
1799 struct gdbarch_data_registration *registrations;
1802 struct gdbarch_data_registry gdbarch_data_registry =
1807 static struct gdbarch_data *
1808 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1809 gdbarch_data_post_init_ftype *post_init)
1811 struct gdbarch_data_registration **curr;
1812 /* Append the new registraration. */
1813 for (curr = &gdbarch_data_registry.registrations;
1815 curr = &(*curr)->next);
1816 (*curr) = XMALLOC (struct gdbarch_data_registration);
1817 (*curr)->next = NULL;
1818 (*curr)->data = XMALLOC (struct gdbarch_data);
1819 (*curr)->data->index = gdbarch_data_registry.nr++;
1820 (*curr)->data->pre_init = pre_init;
1821 (*curr)->data->post_init = post_init;
1822 (*curr)->data->init_p = 1;
1823 return (*curr)->data;
1826 struct gdbarch_data *
1827 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1829 return gdbarch_data_register (pre_init, NULL);
1832 struct gdbarch_data *
1833 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1835 return gdbarch_data_register (NULL, post_init);
1838 /* Create/delete the gdbarch data vector. */
1841 alloc_gdbarch_data (struct gdbarch *gdbarch)
1843 gdb_assert (gdbarch->data == NULL);
1844 gdbarch->nr_data = gdbarch_data_registry.nr;
1845 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1848 /* Initialize the current value of the specified per-architecture
1852 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1853 struct gdbarch_data *data,
1856 gdb_assert (data->index < gdbarch->nr_data);
1857 gdb_assert (gdbarch->data[data->index] == NULL);
1858 gdb_assert (data->pre_init == NULL);
1859 gdbarch->data[data->index] = pointer;
1862 /* Return the current value of the specified per-architecture
1866 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1868 gdb_assert (data->index < gdbarch->nr_data);
1869 if (gdbarch->data[data->index] == NULL)
1871 /* The data-pointer isn't initialized, call init() to get a
1873 if (data->pre_init != NULL)
1874 /* Mid architecture creation: pass just the obstack, and not
1875 the entire architecture, as that way it isn't possible for
1876 pre-init code to refer to undefined architecture
1878 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1879 else if (gdbarch->initialized_p
1880 && data->post_init != NULL)
1881 /* Post architecture creation: pass the entire architecture
1882 (as all fields are valid), but be careful to also detect
1883 recursive references. */
1885 gdb_assert (data->init_p);
1887 gdbarch->data[data->index] = data->post_init (gdbarch);
1891 /* The architecture initialization hasn't completed - punt -
1892 hope that the caller knows what they are doing. Once
1893 deprecated_set_gdbarch_data has been initialized, this can be
1894 changed to an internal error. */
1896 gdb_assert (gdbarch->data[data->index] != NULL);
1898 return gdbarch->data[data->index];
1903 /* Keep a registry of swapped data required by GDB modules. */
1908 struct gdbarch_swap_registration *source;
1909 struct gdbarch_swap *next;
1912 struct gdbarch_swap_registration
1915 unsigned long sizeof_data;
1916 gdbarch_swap_ftype *init;
1917 struct gdbarch_swap_registration *next;
1920 struct gdbarch_swap_registry
1923 struct gdbarch_swap_registration *registrations;
1926 struct gdbarch_swap_registry gdbarch_swap_registry =
1932 deprecated_register_gdbarch_swap (void *data,
1933 unsigned long sizeof_data,
1934 gdbarch_swap_ftype *init)
1936 struct gdbarch_swap_registration **rego;
1937 for (rego = &gdbarch_swap_registry.registrations;
1939 rego = &(*rego)->next);
1940 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1941 (*rego)->next = NULL;
1942 (*rego)->init = init;
1943 (*rego)->data = data;
1944 (*rego)->sizeof_data = sizeof_data;
1948 current_gdbarch_swap_init_hack (void)
1950 struct gdbarch_swap_registration *rego;
1951 struct gdbarch_swap **curr = ¤t_gdbarch->swap;
1952 for (rego = gdbarch_swap_registry.registrations;
1956 if (rego->data != NULL)
1958 (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1959 struct gdbarch_swap);
1960 (*curr)->source = rego;
1961 (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1963 (*curr)->next = NULL;
1964 curr = &(*curr)->next;
1966 if (rego->init != NULL)
1971 static struct gdbarch *
1972 current_gdbarch_swap_out_hack (void)
1974 struct gdbarch *old_gdbarch = current_gdbarch;
1975 struct gdbarch_swap *curr;
1977 gdb_assert (old_gdbarch != NULL);
1978 for (curr = old_gdbarch->swap;
1982 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1983 memset (curr->source->data, 0, curr->source->sizeof_data);
1985 current_gdbarch = NULL;
1990 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1992 struct gdbarch_swap *curr;
1994 gdb_assert (current_gdbarch == NULL);
1995 for (curr = new_gdbarch->swap;
1998 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1999 current_gdbarch = new_gdbarch;
2003 /* Keep a registry of the architectures known by GDB. */
2005 struct gdbarch_registration
2007 enum bfd_architecture bfd_architecture;
2008 gdbarch_init_ftype *init;
2009 gdbarch_dump_tdep_ftype *dump_tdep;
2010 struct gdbarch_list *arches;
2011 struct gdbarch_registration *next;
2014 static struct gdbarch_registration *gdbarch_registry = NULL;
2017 append_name (const char ***buf, int *nr, const char *name)
2019 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2025 gdbarch_printable_names (void)
2027 /* Accumulate a list of names based on the registed list of
2029 enum bfd_architecture a;
2031 const char **arches = NULL;
2032 struct gdbarch_registration *rego;
2033 for (rego = gdbarch_registry;
2037 const struct bfd_arch_info *ap;
2038 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2040 internal_error (__FILE__, __LINE__,
2041 "gdbarch_architecture_names: multi-arch unknown");
2044 append_name (&arches, &nr_arches, ap->printable_name);
2049 append_name (&arches, &nr_arches, NULL);
2055 gdbarch_register (enum bfd_architecture bfd_architecture,
2056 gdbarch_init_ftype *init,
2057 gdbarch_dump_tdep_ftype *dump_tdep)
2059 struct gdbarch_registration **curr;
2060 const struct bfd_arch_info *bfd_arch_info;
2061 /* Check that BFD recognizes this architecture */
2062 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2063 if (bfd_arch_info == NULL)
2065 internal_error (__FILE__, __LINE__,
2066 "gdbarch: Attempt to register unknown architecture (%d)",
2069 /* Check that we haven't seen this architecture before */
2070 for (curr = &gdbarch_registry;
2072 curr = &(*curr)->next)
2074 if (bfd_architecture == (*curr)->bfd_architecture)
2075 internal_error (__FILE__, __LINE__,
2076 "gdbarch: Duplicate registraration of architecture (%s)",
2077 bfd_arch_info->printable_name);
2081 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2082 bfd_arch_info->printable_name,
2085 (*curr) = XMALLOC (struct gdbarch_registration);
2086 (*curr)->bfd_architecture = bfd_architecture;
2087 (*curr)->init = init;
2088 (*curr)->dump_tdep = dump_tdep;
2089 (*curr)->arches = NULL;
2090 (*curr)->next = NULL;
2094 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2095 gdbarch_init_ftype *init)
2097 gdbarch_register (bfd_architecture, init, NULL);
2101 /* Look for an architecture using gdbarch_info. Base search on only
2102 BFD_ARCH_INFO and BYTE_ORDER. */
2104 struct gdbarch_list *
2105 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2106 const struct gdbarch_info *info)
2108 for (; arches != NULL; arches = arches->next)
2110 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2112 if (info->byte_order != arches->gdbarch->byte_order)
2114 if (info->osabi != arches->gdbarch->osabi)
2122 /* Find an architecture that matches the specified INFO. Create a new
2123 architecture if needed. Return that new architecture. Assumes
2124 that there is no current architecture. */
2126 static struct gdbarch *
2127 find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
2129 struct gdbarch *new_gdbarch;
2130 struct gdbarch_registration *rego;
2132 /* The existing architecture has been swapped out - all this code
2133 works from a clean slate. */
2134 gdb_assert (current_gdbarch == NULL);
2136 /* Fill in missing parts of the INFO struct using a number of
2137 sources: "set ..."; INFOabfd supplied; and the existing
2139 gdbarch_info_fill (old_gdbarch, &info);
2141 /* Must have found some sort of architecture. */
2142 gdb_assert (info.bfd_arch_info != NULL);
2146 fprintf_unfiltered (gdb_stdlog,
2147 "find_arch_by_info: info.bfd_arch_info %s\n",
2148 (info.bfd_arch_info != NULL
2149 ? info.bfd_arch_info->printable_name
2151 fprintf_unfiltered (gdb_stdlog,
2152 "find_arch_by_info: info.byte_order %d (%s)\n",
2154 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2155 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2157 fprintf_unfiltered (gdb_stdlog,
2158 "find_arch_by_info: info.osabi %d (%s)\n",
2159 info.osabi, gdbarch_osabi_name (info.osabi));
2160 fprintf_unfiltered (gdb_stdlog,
2161 "find_arch_by_info: info.abfd 0x%lx\n",
2163 fprintf_unfiltered (gdb_stdlog,
2164 "find_arch_by_info: info.tdep_info 0x%lx\n",
2165 (long) info.tdep_info);
2168 /* Find the tdep code that knows about this architecture. */
2169 for (rego = gdbarch_registry;
2172 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2177 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2178 "No matching architecture\n");
2182 /* Ask the tdep code for an architecture that matches "info". */
2183 new_gdbarch = rego->init (info, rego->arches);
2185 /* Did the tdep code like it? No. Reject the change and revert to
2186 the old architecture. */
2187 if (new_gdbarch == NULL)
2190 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2191 "Target rejected architecture\n");
2195 /* Is this a pre-existing architecture (as determined by already
2196 being initialized)? Move it to the front of the architecture
2197 list (keeping the list sorted Most Recently Used). */
2198 if (new_gdbarch->initialized_p)
2200 struct gdbarch_list **list;
2201 struct gdbarch_list *this;
2203 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2204 "Previous architecture 0x%08lx (%s) selected\n",
2206 new_gdbarch->bfd_arch_info->printable_name);
2207 /* Find the existing arch in the list. */
2208 for (list = ®o->arches;
2209 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2210 list = &(*list)->next);
2211 /* It had better be in the list of architectures. */
2212 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2215 (*list) = this->next;
2216 /* Insert THIS at the front. */
2217 this->next = rego->arches;
2218 rego->arches = this;
2223 /* It's a new architecture. */
2225 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2226 "New architecture 0x%08lx (%s) selected\n",
2228 new_gdbarch->bfd_arch_info->printable_name);
2230 /* Insert the new architecture into the front of the architecture
2231 list (keep the list sorted Most Recently Used). */
2233 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2234 this->next = rego->arches;
2235 this->gdbarch = new_gdbarch;
2236 rego->arches = this;
2239 /* Check that the newly installed architecture is valid. Plug in
2240 any post init values. */
2241 new_gdbarch->dump_tdep = rego->dump_tdep;
2242 verify_gdbarch (new_gdbarch);
2243 new_gdbarch->initialized_p = 1;
2245 /* Initialize any per-architecture swap areas. This phase requires
2246 a valid global CURRENT_GDBARCH. Set it momentarially, and then
2247 swap the entire architecture out. */
2248 current_gdbarch = new_gdbarch;
2249 current_gdbarch_swap_init_hack ();
2250 current_gdbarch_swap_out_hack ();
2253 gdbarch_dump (new_gdbarch, gdb_stdlog);
2259 gdbarch_find_by_info (struct gdbarch_info info)
2261 /* Save the previously selected architecture, setting the global to
2262 NULL. This stops things like gdbarch->init() trying to use the
2263 previous architecture's configuration. The previous architecture
2264 may not even be of the same architecture family. The most recent
2265 architecture of the same family is found at the head of the
2266 rego->arches list. */
2267 struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2269 /* Find the specified architecture. */
2270 struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
2272 /* Restore the existing architecture. */
2273 gdb_assert (current_gdbarch == NULL);
2274 current_gdbarch_swap_in_hack (old_gdbarch);
2279 /* Make the specified architecture current, swapping the existing one
2283 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2285 gdb_assert (new_gdbarch != NULL);
2286 gdb_assert (current_gdbarch != NULL);
2287 gdb_assert (new_gdbarch->initialized_p);
2288 current_gdbarch_swap_out_hack ();
2289 current_gdbarch_swap_in_hack (new_gdbarch);
2290 architecture_changed_event ();
2293 extern void _initialize_gdbarch (void);
2296 _initialize_gdbarch (void)
2298 struct cmd_list_element *c;
2300 add_show_from_set (add_set_cmd ("arch",
2303 (char *)&gdbarch_debug,
2304 "Set architecture debugging.\\n\\
2305 When non-zero, architecture debugging is enabled.", &setdebuglist),
2307 c = add_set_cmd ("archdebug",
2310 (char *)&gdbarch_debug,
2311 "Set architecture debugging.\\n\\
2312 When non-zero, architecture debugging is enabled.", &setlist);
2314 deprecate_cmd (c, "set debug arch");
2315 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2321 #../move-if-change new-gdbarch.c gdbarch.c
2322 compare_new gdbarch.c