3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
6 # This file is part of GDB.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 # Make certain that the script is running in an internationalized
25 LC_ALL
=c
; export LC_ALL
33 echo "${file} missing? cp new-${file} ${file}" 1>&2
34 elif diff -u ${file} new-
${file}
36 echo "${file} unchanged" 1>&2
38 echo "${file} has changed? cp new-${file} ${file}" 1>&2
43 # Format of the input table
44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
52 if test "${line}" = ""
55 elif test "${line}" = "#" -a "${comment}" = ""
58 elif expr "${line}" : "#" > /dev
/null
64 # The semantics of IFS varies between different SH's. Some
65 # treat ``::' as three fields while some treat it as just too.
66 # Work around this by eliminating ``::'' ....
67 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
69 OFS
="${IFS}" ; IFS
="[:]"
70 eval read ${read} <<EOF
75 # .... and then going back through each field and strip out those
76 # that ended up with just that space character.
79 if eval test \"\
${${r}}\" = \"\
\"
86 1 ) gt_level
=">= GDB_MULTI_ARCH_PARTIAL" ;;
87 2 ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
88 "" ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
89 * ) error
"Error: bad level for ${function}" 1>&2 ; kill $$
; exit 1 ;;
93 m
) staticdefault
="${predefault}" ;;
94 M
) staticdefault
="0" ;;
95 * ) test "${staticdefault}" || staticdefault
=0 ;;
97 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
98 # multi-arch defaults.
99 # test "${predefault}" || predefault=0
101 # come up with a format, use a few guesses for variables
102 case ":${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 "${predefault}" -a "${predefault}" != "0"
124 #invalid_p="gdbarch->${function} == ${predefault}"
125 predicate
="gdbarch->${function} != ${predefault}"
132 echo "Predicate function ${function} with invalid_p." 1>&2
139 # PREDEFAULT is a valid fallback definition of MEMBER when
140 # multi-arch is not enabled. This ensures that the
141 # default value, when multi-arch is the same as the
142 # default value when not multi-arch. POSTDEFAULT is
143 # always a valid definition of MEMBER as this again
144 # ensures consistency.
146 if [ -n "${postdefault}" ]
148 fallbackdefault
="${postdefault}"
149 elif [ -n "${predefault}" ]
151 fallbackdefault
="${predefault}"
156 #NOT YET: See gdbarch.log for basic verification of
171 fallback_default_p
()
173 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
174 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
177 class_is_variable_p
()
185 class_is_function_p
()
188 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
193 class_is_multiarch_p
()
201 class_is_predicate_p
()
204 *F
* |
*V
* |
*M
* ) true
;;
218 # dump out/verify the doco
228 # F -> function + predicate
229 # hiding a function + predicate to test function validity
232 # V -> variable + predicate
233 # hiding a variable + predicate to test variables validity
235 # hiding something from the ``struct info'' object
236 # m -> multi-arch function
237 # hiding a multi-arch function (parameterised with the architecture)
238 # M -> multi-arch function + predicate
239 # hiding a multi-arch function + predicate to test function validity
243 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
244 # LEVEL is a predicate on checking that a given method is
245 # initialized (using INVALID_P).
249 # The name of the MACRO that this method is to be accessed by.
253 # For functions, the return type; for variables, the data type
257 # For functions, the member function name; for variables, the
258 # variable name. Member function names are always prefixed with
259 # ``gdbarch_'' for name-space purity.
263 # The formal argument list. It is assumed that the formal
264 # argument list includes the actual name of each list element.
265 # A function with no arguments shall have ``void'' as the
266 # formal argument list.
270 # The list of actual arguments. The arguments specified shall
271 # match the FORMAL list given above. Functions with out
272 # arguments leave this blank.
276 # Any GCC attributes that should be attached to the function
277 # declaration. At present this field is unused.
281 # To help with the GDB startup a static gdbarch object is
282 # created. STATICDEFAULT is the value to insert into that
283 # static gdbarch object. Since this a static object only
284 # simple expressions can be used.
286 # If STATICDEFAULT is empty, zero is used.
290 # An initial value to assign to MEMBER of the freshly
291 # malloc()ed gdbarch object. After initialization, the
292 # freshly malloc()ed object is passed to the target
293 # architecture code for further updates.
295 # If PREDEFAULT is empty, zero is used.
297 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
298 # INVALID_P are specified, PREDEFAULT will be used as the
299 # default for the non- multi-arch target.
301 # A zero PREDEFAULT function will force the fallback to call
304 # Variable declarations can refer to ``gdbarch'' which will
305 # contain the current architecture. Care should be taken.
309 # A value to assign to MEMBER of the new gdbarch object should
310 # the target architecture code fail to change the PREDEFAULT
313 # If POSTDEFAULT is empty, no post update is performed.
315 # If both INVALID_P and POSTDEFAULT are non-empty then
316 # INVALID_P will be used to determine if MEMBER should be
317 # changed to POSTDEFAULT.
319 # If a non-empty POSTDEFAULT and a zero INVALID_P are
320 # specified, POSTDEFAULT will be used as the default for the
321 # non- multi-arch target (regardless of the value of
324 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
326 # Variable declarations can refer to ``gdbarch'' which will
327 # contain the current architecture. Care should be taken.
331 # A predicate equation that validates MEMBER. Non-zero is
332 # returned if the code creating the new architecture failed to
333 # initialize MEMBER or the initialized the member is invalid.
334 # If POSTDEFAULT is non-empty then MEMBER will be updated to
335 # that value. If POSTDEFAULT is empty then internal_error()
338 # If INVALID_P is empty, a check that MEMBER is no longer
339 # equal to PREDEFAULT is used.
341 # The expression ``0'' disables the INVALID_P check making
342 # PREDEFAULT a legitimate value.
344 # See also PREDEFAULT and POSTDEFAULT.
348 # printf style format string that can be used to print out the
349 # MEMBER. Sometimes "%s" is useful. For functions, this is
350 # ignored and the function address is printed.
352 # If FMT is empty, ``%ld'' is used.
356 # An optional equation that casts MEMBER to a value suitable
357 # for formatting by FMT.
359 # If PRINT is empty, ``(long)'' is used.
363 # An optional indicator for any predicte to wrap around the
366 # () -> Call a custom function to do the dump.
367 # exp -> Wrap print up in ``if (${print_p}) ...
368 # ``'' -> No predicate
370 # If PRINT_P is empty, ``1'' is always used.
377 echo "Bad field ${field}"
385 # See below (DOCO) for description of each field
387 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
389 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
391 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
392 # Number of bits in a char or unsigned char for the target machine.
393 # Just like CHAR_BIT in <limits.h> but describes the target machine.
394 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
396 # Number of bits in a short or unsigned short for the target machine.
397 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
398 # Number of bits in an int or unsigned int for the target machine.
399 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
400 # Number of bits in a long or unsigned long for the target machine.
401 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
402 # Number of bits in a long long or unsigned long long for the target
404 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
405 # Number of bits in a float for the target machine.
406 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
407 # Number of bits in a double for the target machine.
408 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
409 # Number of bits in a long double for the target machine.
410 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
411 # For most targets, a pointer on the target and its representation as an
412 # address in GDB have the same size and "look the same". For such a
413 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
414 # / addr_bit will be set from it.
416 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
417 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
419 # ptr_bit is the size of a pointer on the target
420 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
421 # addr_bit is the size of a target address as represented in gdb
422 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
423 # Number of bits in a BFD_VMA for the target object file format.
424 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
426 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
427 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
429 f:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
431 f:2:TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
432 f:2:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
433 # The dummy call frame SP should be set by push_dummy_call.
434 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
435 # Function for getting target's idea of a frame pointer. FIXME: GDB's
436 # whole scheme for dealing with "frames" and "frame pointers" needs a
438 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
440 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf:
441 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf:
443 v:2:NUM_REGS:int:num_regs::::0:-1
444 # This macro gives the number of pseudo-registers that live in the
445 # register namespace but do not get fetched or stored on the target.
446 # These pseudo-registers may be aliases for other registers,
447 # combinations of other registers, or they may be computed by GDB.
448 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
450 # GDB's standard (or well known) register numbers. These can map onto
451 # a real register or a pseudo (computed) register or not be defined at
453 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
454 v:2:FP_REGNUM:int:fp_regnum::::-1:-1::0
455 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
456 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
457 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
458 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
459 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
460 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
461 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
462 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
463 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
464 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
465 # Convert from an sdb register number to an internal gdb register number.
466 # This should be defined in tm.h, if REGISTER_NAMES is not set up
467 # to map one to one onto the sdb register numbers.
468 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
469 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
470 f:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
471 v:2:REGISTER_SIZE:int:register_size::::0:-1
472 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
473 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte::0
474 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
475 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
476 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
478 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
479 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
480 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
481 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
483 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
484 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
485 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
486 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
488 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
489 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
490 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
491 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE are all being replaced
493 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
494 # The methods REGISTER_VIRTUAL_TYPE, MAX_REGISTER_RAW_SIZE,
495 # MAX_REGISTER_VIRTUAL_SIZE, MAX_REGISTER_RAW_SIZE,
496 # REGISTER_VIRTUAL_SIZE and REGISTER_RAW_SIZE have all being replaced
498 F:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
499 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr::0:
501 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
502 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
503 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
504 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
505 # MAP a GDB RAW register number onto a simulator register number. See
506 # also include/...-sim.h.
507 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
508 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
509 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
510 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
511 # setjmp/longjmp support.
512 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
514 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
515 # much better but at least they are vaguely consistent). The headers
516 # and body contain convoluted #if/#else sequences for determine how
517 # things should be compiled. Instead of trying to mimic that
518 # behaviour here (and hence entrench it further) gdbarch simply
519 # reqires that these methods be set up from the word go. This also
520 # avoids any potential problems with moving beyond multi-arch partial.
521 v:1:DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
522 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
523 f::CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void::::entry_point_address::0
524 v::CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset
525 v::CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset
526 v::CALL_DUMMY_LENGTH:int:call_dummy_length
527 # NOTE: cagney/2002-11-24: This function with predicate has a valid
528 # (callable) initial value. As a consequence, even when the predicate
529 # is false, the corresponding function works. This simplifies the
530 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
531 # doesn't need to be modified.
532 F:1:DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::generic_pc_in_call_dummy:generic_pc_in_call_dummy
533 v::CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
534 v::SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
535 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust::::0
536 F::FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p
537 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
538 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
540 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
541 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
542 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
544 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
545 f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
546 f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to:::0::0
548 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
549 f:1:REGISTER_TO_VALUE:void:register_to_value:int regnum, struct type *type, char *from, char *to:regnum, type, from, to::0:legacy_register_to_value::0
550 f:1:VALUE_TO_REGISTER:void:value_to_register:struct type *type, int regnum, char *from, char *to:type, regnum, from, to::0:legacy_value_to_register::0
552 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
553 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
554 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
556 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
557 # Replaced by PUSH_DUMMY_CALL
558 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
559 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:struct regcache *regcache, CORE_ADDR dummy_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:regcache, dummy_addr, nargs, args, sp, struct_return, struct_addr
560 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-:::0
561 # NOTE: This can be handled directly in push_dummy_call.
562 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
563 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-:::0
564 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
565 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
567 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
568 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
569 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
570 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
572 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
573 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
574 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
576 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame:::0
577 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
579 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
580 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
581 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
582 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
583 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
584 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
585 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
586 f:2:PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
587 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
589 f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
591 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
592 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
593 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame::0:0
594 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
595 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC. Please
596 # note, per UNWIND_PC's doco, that while the two have similar
597 # interfaces they have very different underlying implementations.
598 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi::0:0
599 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame:
600 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:get_frame_base::0
601 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:get_frame_base::0
602 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
603 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
605 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
606 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
607 # NOTE: cagney/2003-03-24: This is better handled by PUSH_ARGUMENTS.
608 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
609 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
610 # FIXME: kettenis/2003-03-08: This should be replaced by a function
611 # parametrized with (at least) the regcache.
612 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
613 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info::0:0
614 v:2:PARM_BOUNDARY:int:parm_boundary
616 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
617 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
618 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
619 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
620 # On some machines there are bits in addresses which are not really
621 # part of the address, but are used by the kernel, the hardware, etc.
622 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
623 # we get a "real" address such as one would find in a symbol table.
624 # This is used only for addresses of instructions, and even then I'm
625 # not sure it's used in all contexts. It exists to deal with there
626 # being a few stray bits in the PC which would mislead us, not as some
627 # sort of generic thing to handle alignment or segmentation (it's
628 # possible it should be in TARGET_READ_PC instead).
629 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
630 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
632 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
633 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
634 # the target needs software single step. An ISA method to implement it.
636 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
637 # using the breakpoint system instead of blatting memory directly (as with rs6000).
639 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
640 # single step. If not, then implement single step using breakpoints.
641 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
642 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
643 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
646 # For SVR4 shared libraries, each call goes through a small piece of
647 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
648 # to nonzero if we are currently stopped in one of these.
649 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
651 # Some systems also have trampoline code for returning from shared libs.
652 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
654 # Sigtramp is a routine that the kernel calls (which then calls the
655 # signal handler). On most machines it is a library routine that is
656 # linked into the executable.
658 # This macro, given a program counter value and the name of the
659 # function in which that PC resides (which can be null if the name is
660 # not known), returns nonzero if the PC and name show that we are in
663 # On most machines just see if the name is sigtramp (and if we have
664 # no name, assume we are not in sigtramp).
666 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
667 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
668 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
669 # own local NAME lookup.
671 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
672 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
674 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
675 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
676 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
677 # A target might have problems with watchpoints as soon as the stack
678 # frame of the current function has been destroyed. This mostly happens
679 # as the first action in a funtion's epilogue. in_function_epilogue_p()
680 # is defined to return a non-zero value if either the given addr is one
681 # instruction after the stack destroying instruction up to the trailing
682 # return instruction or if we can figure out that the stack frame has
683 # already been invalidated regardless of the value of addr. Targets
684 # which don't suffer from that problem could just let this functionality
686 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
687 # Given a vector of command-line arguments, return a newly allocated
688 # string which, when passed to the create_inferior function, will be
689 # parsed (on Unix systems, by the shell) to yield the same vector.
690 # This function should call error() if the argument vector is not
691 # representable for this target or if this target does not support
692 # command-line arguments.
693 # ARGC is the number of elements in the vector.
694 # ARGV is an array of strings, one per argument.
695 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
696 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
697 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
698 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
699 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
700 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
701 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
702 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
703 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags:
704 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
705 # Is a register in a group
706 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
713 exec > new-gdbarch.log
714 function_list |
while do_read
717 ${class} ${macro}(${actual})
718 ${returntype} ${function} ($formal)${attrib}
722 eval echo \"\ \ \ \
${r}=\
${${r}}\"
724 if class_is_predicate_p
&& fallback_default_p
726 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
730 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
732 echo "Error: postdefault is useless when invalid_p=0" 1>&2
736 if class_is_multiarch_p
738 if class_is_predicate_p
; then :
739 elif test "x${predefault}" = "x"
741 echo "Error: pure multi-arch function must have a predefault" 1>&2
750 compare_new gdbarch.log
756 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
758 /* Dynamic architecture support for GDB, the GNU debugger.
759 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
761 This file is part of GDB.
763 This program is free software; you can redistribute it and/or modify
764 it under the terms of the GNU General Public License as published by
765 the Free Software Foundation; either version 2 of the License, or
766 (at your option) any later version.
768 This program is distributed in the hope that it will be useful,
769 but WITHOUT ANY WARRANTY; without even the implied warranty of
770 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
771 GNU General Public License for more details.
773 You should have received a copy of the GNU General Public License
774 along with this program; if not, write to the Free Software
775 Foundation, Inc., 59 Temple Place - Suite 330,
776 Boston, MA 02111-1307, USA. */
778 /* This file was created with the aid of \`\`gdbarch.sh''.
780 The Bourne shell script \`\`gdbarch.sh'' creates the files
781 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
782 against the existing \`\`gdbarch.[hc]''. Any differences found
785 If editing this file, please also run gdbarch.sh and merge any
786 changes into that script. Conversely, when making sweeping changes
787 to this file, modifying gdbarch.sh and using its output may prove
803 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
805 /* Pull in function declarations refered to, indirectly, via macros. */
806 #include "inferior.h" /* For unsigned_address_to_pointer(). */
807 #include "symfile.h" /* For entry_point_address(). */
813 struct minimal_symbol;
817 extern struct gdbarch *current_gdbarch;
820 /* If any of the following are defined, the target wasn't correctly
824 #if defined (EXTRA_FRAME_INFO)
825 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
830 #if defined (FRAME_FIND_SAVED_REGS)
831 #error "FRAME_FIND_SAVED_REGS: replaced by DEPRECATED_FRAME_INIT_SAVED_REGS"
835 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
836 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
843 printf "/* The following are pre-initialized by GDBARCH. */\n"
844 function_list |
while do_read
849 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
850 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
851 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
852 printf "#error \"Non multi-arch definition of ${macro}\"\n"
854 printf "#if GDB_MULTI_ARCH\n"
855 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
856 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
865 printf "/* The following are initialized by the target dependent code. */\n"
866 function_list |
while do_read
868 if [ -n "${comment}" ]
870 echo "${comment}" |
sed \
875 if class_is_multiarch_p
877 if class_is_predicate_p
880 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
883 if class_is_predicate_p
886 printf "#if defined (${macro})\n"
887 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
888 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
889 printf "#if !defined (${macro}_P)\n"
890 printf "#define ${macro}_P() (1)\n"
894 printf "/* Default predicate for non- multi-arch targets. */\n"
895 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
896 printf "#define ${macro}_P() (0)\n"
899 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
900 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
901 printf "#error \"Non multi-arch definition of ${macro}\"\n"
903 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
904 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
908 if class_is_variable_p
910 if fallback_default_p || class_is_predicate_p
913 printf "/* Default (value) for non- multi-arch platforms. */\n"
914 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
915 echo "#define ${macro} (${fallbackdefault})" \
916 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
920 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
921 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
922 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
923 printf "#error \"Non multi-arch definition of ${macro}\"\n"
925 if test "${level}" = ""
927 printf "#if !defined (${macro})\n"
928 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
931 printf "#if GDB_MULTI_ARCH\n"
932 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
933 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
938 if class_is_function_p
940 if class_is_multiarch_p
; then :
941 elif fallback_default_p || class_is_predicate_p
944 printf "/* Default (function) for non- multi-arch platforms. */\n"
945 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
946 if [ "x${fallbackdefault}" = "x0" ]
948 if [ "x${actual}" = "x-" ]
950 printf "#define ${macro} (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
952 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
955 # FIXME: Should be passing current_gdbarch through!
956 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
957 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
962 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
964 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
965 elif class_is_multiarch_p
967 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
969 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
971 if [ "x${formal}" = "xvoid" ]
973 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
975 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
977 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
978 if class_is_multiarch_p
; then :
980 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
981 printf "#error \"Non multi-arch definition of ${macro}\"\n"
983 printf "#if GDB_MULTI_ARCH\n"
984 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
985 if [ "x${actual}" = "x" ]
987 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
988 elif [ "x${actual}" = "x-" ]
990 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
992 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. Force an update of the current architecture.
1131 The actual architecture selected is determined by INFO, \`\`(gdb) set
1132 architecture'' et.al., the existing architecture and BFD's default
1133 architecture. INFO should be initialized to zero and then selected
1134 fields should be updated.
1136 Returns non-zero if the update succeeds */
1138 extern int gdbarch_update_p (struct gdbarch_info info);
1142 /* Register per-architecture data-pointer.
1144 Reserve space for a per-architecture data-pointer. An identifier
1145 for the reserved data-pointer is returned. That identifer should
1146 be saved in a local static variable.
1148 The per-architecture data-pointer is either initialized explicitly
1149 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1150 gdbarch_data()). FREE() is called to delete either an existing
1151 data-pointer overridden by set_gdbarch_data() or when the
1152 architecture object is being deleted.
1154 When a previously created architecture is re-selected, the
1155 per-architecture data-pointer for that previous architecture is
1156 restored. INIT() is not re-called.
1158 Multiple registrarants for any architecture are allowed (and
1159 strongly encouraged). */
1161 struct gdbarch_data;
1163 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1164 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1166 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1167 gdbarch_data_free_ftype *free);
1168 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1169 struct gdbarch_data *data,
1172 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1175 /* Register per-architecture memory region.
1177 Provide a memory-region swap mechanism. Per-architecture memory
1178 region are created. These memory regions are swapped whenever the
1179 architecture is changed. For a new architecture, the memory region
1180 is initialized with zero (0) and the INIT function is called.
1182 Memory regions are swapped / initialized in the order that they are
1183 registered. NULL DATA and/or INIT values can be specified.
1185 New code should use register_gdbarch_data(). */
1187 typedef void (gdbarch_swap_ftype) (void);
1188 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1189 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1193 /* The target-system-dependent byte order is dynamic */
1195 extern int target_byte_order;
1196 #ifndef TARGET_BYTE_ORDER
1197 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1200 extern int target_byte_order_auto;
1201 #ifndef TARGET_BYTE_ORDER_AUTO
1202 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1207 /* The target-system-dependent BFD architecture is dynamic */
1209 extern int target_architecture_auto;
1210 #ifndef TARGET_ARCHITECTURE_AUTO
1211 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1214 extern const struct bfd_arch_info *target_architecture;
1215 #ifndef TARGET_ARCHITECTURE
1216 #define TARGET_ARCHITECTURE (target_architecture + 0)
1220 /* The target-system-dependent disassembler is semi-dynamic */
1222 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1223 unsigned int len, disassemble_info *info);
1225 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1226 disassemble_info *info);
1228 extern void dis_asm_print_address (bfd_vma addr,
1229 disassemble_info *info);
1231 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1232 extern disassemble_info tm_print_insn_info;
1233 #ifndef TARGET_PRINT_INSN_INFO
1234 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1239 /* Set the dynamic target-system-dependent parameters (architecture,
1240 byte-order, ...) using information found in the BFD */
1242 extern void set_gdbarch_from_file (bfd *);
1245 /* Initialize the current architecture to the "first" one we find on
1248 extern void initialize_current_architecture (void);
1250 /* For non-multiarched targets, do any initialization of the default
1251 gdbarch object necessary after the _initialize_MODULE functions
1253 extern void initialize_non_multiarch (void);
1255 /* gdbarch trace variable */
1256 extern int gdbarch_debug;
1258 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1263 #../move-if-change new-gdbarch.h gdbarch.h
1264 compare_new gdbarch.h
1271 exec > new-gdbarch.c
1276 #include "arch-utils.h"
1280 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1282 /* Just include everything in sight so that the every old definition
1283 of macro is visible. */
1284 #include "gdb_string.h"
1288 #include "inferior.h"
1289 #include "breakpoint.h"
1290 #include "gdb_wait.h"
1291 #include "gdbcore.h"
1294 #include "gdbthread.h"
1295 #include "annotate.h"
1296 #include "symfile.h" /* for overlay functions */
1297 #include "value.h" /* For old tm.h/nm.h macros. */
1301 #include "floatformat.h"
1303 #include "gdb_assert.h"
1304 #include "gdb_string.h"
1305 #include "gdb-events.h"
1306 #include "reggroups.h"
1308 #include "symfile.h" /* For entry_point_address. */
1310 /* Static function declarations */
1312 static void verify_gdbarch (struct gdbarch *gdbarch);
1313 static void alloc_gdbarch_data (struct gdbarch *);
1314 static void free_gdbarch_data (struct gdbarch *);
1315 static void init_gdbarch_swap (struct gdbarch *);
1316 static void clear_gdbarch_swap (struct gdbarch *);
1317 static void swapout_gdbarch_swap (struct gdbarch *);
1318 static void swapin_gdbarch_swap (struct gdbarch *);
1320 /* Non-zero if we want to trace architecture code. */
1322 #ifndef GDBARCH_DEBUG
1323 #define GDBARCH_DEBUG 0
1325 int gdbarch_debug = GDBARCH_DEBUG;
1329 # gdbarch open the gdbarch object
1331 printf "/* Maintain the struct gdbarch object */\n"
1333 printf "struct gdbarch\n"
1335 printf " /* Has this architecture been fully initialized? */\n"
1336 printf " int initialized_p;\n"
1337 printf " /* basic architectural information */\n"
1338 function_list |
while do_read
1342 printf " ${returntype} ${function};\n"
1346 printf " /* target specific vector. */\n"
1347 printf " struct gdbarch_tdep *tdep;\n"
1348 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1350 printf " /* per-architecture data-pointers */\n"
1351 printf " unsigned nr_data;\n"
1352 printf " void **data;\n"
1354 printf " /* per-architecture swap-regions */\n"
1355 printf " struct gdbarch_swap *swap;\n"
1358 /* Multi-arch values.
1360 When extending this structure you must:
1362 Add the field below.
1364 Declare set/get functions and define the corresponding
1367 gdbarch_alloc(): If zero/NULL is not a suitable default,
1368 initialize the new field.
1370 verify_gdbarch(): Confirm that the target updated the field
1373 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1376 \`\`startup_gdbarch()'': Append an initial value to the static
1377 variable (base values on the host's c-type system).
1379 get_gdbarch(): Implement the set/get functions (probably using
1380 the macro's as shortcuts).
1385 function_list |
while do_read
1387 if class_is_variable_p
1389 printf " ${returntype} ${function};\n"
1390 elif class_is_function_p
1392 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1397 # A pre-initialized vector
1401 /* The default architecture uses host values (for want of a better
1405 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1407 printf "struct gdbarch startup_gdbarch =\n"
1409 printf " 1, /* Always initialized. */\n"
1410 printf " /* basic architecture information */\n"
1411 function_list |
while do_read
1415 printf " ${staticdefault},\n"
1419 /* target specific vector and its dump routine */
1421 /*per-architecture data-pointers and swap regions */
1423 /* Multi-arch values */
1425 function_list |
while do_read
1427 if class_is_function_p || class_is_variable_p
1429 printf " ${staticdefault},\n"
1433 /* startup_gdbarch() */
1436 struct gdbarch *current_gdbarch = &startup_gdbarch;
1438 /* Do any initialization needed for a non-multiarch configuration
1439 after the _initialize_MODULE functions have been run. */
1441 initialize_non_multiarch (void)
1443 alloc_gdbarch_data (&startup_gdbarch);
1444 /* Ensure that all swap areas are zeroed so that they again think
1445 they are starting from scratch. */
1446 clear_gdbarch_swap (&startup_gdbarch);
1447 init_gdbarch_swap (&startup_gdbarch);
1451 # Create a new gdbarch struct
1455 /* Create a new \`\`struct gdbarch'' based on information provided by
1456 \`\`struct gdbarch_info''. */
1461 gdbarch_alloc (const struct gdbarch_info *info,
1462 struct gdbarch_tdep *tdep)
1464 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1465 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1466 the current local architecture and not the previous global
1467 architecture. This ensures that the new architectures initial
1468 values are not influenced by the previous architecture. Once
1469 everything is parameterised with gdbarch, this will go away. */
1470 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1471 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1473 alloc_gdbarch_data (current_gdbarch);
1475 current_gdbarch->tdep = tdep;
1478 function_list |
while do_read
1482 printf " current_gdbarch->${function} = info->${function};\n"
1486 printf " /* Force the explicit initialization of these. */\n"
1487 function_list |
while do_read
1489 if class_is_function_p || class_is_variable_p
1491 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1493 printf " current_gdbarch->${function} = ${predefault};\n"
1498 /* gdbarch_alloc() */
1500 return current_gdbarch;
1504 # Free a gdbarch struct.
1508 /* Free a gdbarch struct. This should never happen in normal
1509 operation --- once you've created a gdbarch, you keep it around.
1510 However, if an architecture's init function encounters an error
1511 building the structure, it may need to clean up a partially
1512 constructed gdbarch. */
1515 gdbarch_free (struct gdbarch *arch)
1517 gdb_assert (arch != NULL);
1518 free_gdbarch_data (arch);
1523 # verify a new architecture
1526 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1530 verify_gdbarch (struct gdbarch *gdbarch)
1532 struct ui_file *log;
1533 struct cleanup *cleanups;
1536 /* Only perform sanity checks on a multi-arch target. */
1537 if (!GDB_MULTI_ARCH)
1539 log = mem_fileopen ();
1540 cleanups = make_cleanup_ui_file_delete (log);
1542 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1543 fprintf_unfiltered (log, "\n\tbyte-order");
1544 if (gdbarch->bfd_arch_info == NULL)
1545 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1546 /* Check those that need to be defined for the given multi-arch level. */
1548 function_list |
while do_read
1550 if class_is_function_p || class_is_variable_p
1552 if [ "x${invalid_p}" = "x0" ]
1554 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1555 elif class_is_predicate_p
1557 printf " /* Skip verify of ${function}, has predicate */\n"
1558 # FIXME: See do_read for potential simplification
1559 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1561 printf " if (${invalid_p})\n"
1562 printf " gdbarch->${function} = ${postdefault};\n"
1563 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1565 printf " if (gdbarch->${function} == ${predefault})\n"
1566 printf " gdbarch->${function} = ${postdefault};\n"
1567 elif [ -n "${postdefault}" ]
1569 printf " if (gdbarch->${function} == 0)\n"
1570 printf " gdbarch->${function} = ${postdefault};\n"
1571 elif [ -n "${invalid_p}" ]
1573 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1574 printf " && (${invalid_p}))\n"
1575 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1576 elif [ -n "${predefault}" ]
1578 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1579 printf " && (gdbarch->${function} == ${predefault}))\n"
1580 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1585 buf = ui_file_xstrdup (log, &dummy);
1586 make_cleanup (xfree, buf);
1587 if (strlen (buf) > 0)
1588 internal_error (__FILE__, __LINE__,
1589 "verify_gdbarch: the following are invalid ...%s",
1591 do_cleanups (cleanups);
1595 # dump the structure
1599 /* Print out the details of the current architecture. */
1601 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1602 just happens to match the global variable \`\`current_gdbarch''. That
1603 way macros refering to that variable get the local and not the global
1604 version - ulgh. Once everything is parameterised with gdbarch, this
1608 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1610 fprintf_unfiltered (file,
1611 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1614 function_list |
sort -t: -k 3 |
while do_read
1616 # First the predicate
1617 if class_is_predicate_p
1619 if class_is_multiarch_p
1621 printf " if (GDB_MULTI_ARCH)\n"
1622 printf " fprintf_unfiltered (file,\n"
1623 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1624 printf " gdbarch_${function}_p (current_gdbarch));\n"
1626 printf "#ifdef ${macro}_P\n"
1627 printf " fprintf_unfiltered (file,\n"
1628 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1629 printf " \"${macro}_P()\",\n"
1630 printf " XSTRING (${macro}_P ()));\n"
1631 printf " fprintf_unfiltered (file,\n"
1632 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1633 printf " ${macro}_P ());\n"
1637 # multiarch functions don't have macros.
1638 if class_is_multiarch_p
1640 printf " if (GDB_MULTI_ARCH)\n"
1641 printf " fprintf_unfiltered (file,\n"
1642 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1643 printf " (long) current_gdbarch->${function});\n"
1646 # Print the macro definition.
1647 printf "#ifdef ${macro}\n"
1648 if [ "x${returntype}" = "xvoid" ]
1650 printf "#if GDB_MULTI_ARCH\n"
1651 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1653 if class_is_function_p
1655 printf " fprintf_unfiltered (file,\n"
1656 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1657 printf " \"${macro}(${actual})\",\n"
1658 printf " XSTRING (${macro} (${actual})));\n"
1660 printf " fprintf_unfiltered (file,\n"
1661 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1662 printf " XSTRING (${macro}));\n"
1664 # Print the architecture vector value
1665 if [ "x${returntype}" = "xvoid" ]
1669 if [ "x${print_p}" = "x()" ]
1671 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1672 elif [ "x${print_p}" = "x0" ]
1674 printf " /* skip print of ${macro}, print_p == 0. */\n"
1675 elif [ -n "${print_p}" ]
1677 printf " if (${print_p})\n"
1678 printf " fprintf_unfiltered (file,\n"
1679 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1680 printf " ${print});\n"
1681 elif class_is_function_p
1683 printf " if (GDB_MULTI_ARCH)\n"
1684 printf " fprintf_unfiltered (file,\n"
1685 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1686 printf " (long) current_gdbarch->${function}\n"
1687 printf " /*${macro} ()*/);\n"
1689 printf " fprintf_unfiltered (file,\n"
1690 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1691 printf " ${print});\n"
1696 if (current_gdbarch->dump_tdep != NULL)
1697 current_gdbarch->dump_tdep (current_gdbarch, file);
1705 struct gdbarch_tdep *
1706 gdbarch_tdep (struct gdbarch *gdbarch)
1708 if (gdbarch_debug >= 2)
1709 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1710 return gdbarch->tdep;
1714 function_list |
while do_read
1716 if class_is_predicate_p
1720 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1722 printf " gdb_assert (gdbarch != NULL);\n"
1723 if [ -n "${predicate}" ]
1725 printf " return ${predicate};\n"
1727 printf " return gdbarch->${function} != 0;\n"
1731 if class_is_function_p
1734 printf "${returntype}\n"
1735 if [ "x${formal}" = "xvoid" ]
1737 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1739 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1742 printf " gdb_assert (gdbarch != NULL);\n"
1743 printf " if (gdbarch->${function} == 0)\n"
1744 printf " internal_error (__FILE__, __LINE__,\n"
1745 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1746 if class_is_predicate_p
&& test -n "${predicate}"
1748 # Allow a call to a function with a predicate.
1749 printf " /* Ignore predicate (${predicate}). */\n"
1751 printf " if (gdbarch_debug >= 2)\n"
1752 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1753 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1755 if class_is_multiarch_p
1762 if class_is_multiarch_p
1764 params
="gdbarch, ${actual}"
1769 if [ "x${returntype}" = "xvoid" ]
1771 printf " gdbarch->${function} (${params});\n"
1773 printf " return gdbarch->${function} (${params});\n"
1778 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1779 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1781 printf " gdbarch->${function} = ${function};\n"
1783 elif class_is_variable_p
1786 printf "${returntype}\n"
1787 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1789 printf " gdb_assert (gdbarch != NULL);\n"
1790 if [ "x${invalid_p}" = "x0" ]
1792 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1793 elif [ -n "${invalid_p}" ]
1795 printf " if (${invalid_p})\n"
1796 printf " internal_error (__FILE__, __LINE__,\n"
1797 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1798 elif [ -n "${predefault}" ]
1800 printf " if (gdbarch->${function} == ${predefault})\n"
1801 printf " internal_error (__FILE__, __LINE__,\n"
1802 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1804 printf " if (gdbarch_debug >= 2)\n"
1805 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1806 printf " return gdbarch->${function};\n"
1810 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1811 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1813 printf " gdbarch->${function} = ${function};\n"
1815 elif class_is_info_p
1818 printf "${returntype}\n"
1819 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1821 printf " gdb_assert (gdbarch != NULL);\n"
1822 printf " if (gdbarch_debug >= 2)\n"
1823 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1824 printf " return gdbarch->${function};\n"
1829 # All the trailing guff
1833 /* Keep a registry of per-architecture data-pointers required by GDB
1840 gdbarch_data_init_ftype *init;
1841 gdbarch_data_free_ftype *free;
1844 struct gdbarch_data_registration
1846 struct gdbarch_data *data;
1847 struct gdbarch_data_registration *next;
1850 struct gdbarch_data_registry
1853 struct gdbarch_data_registration *registrations;
1856 struct gdbarch_data_registry gdbarch_data_registry =
1861 struct gdbarch_data *
1862 register_gdbarch_data (gdbarch_data_init_ftype *init,
1863 gdbarch_data_free_ftype *free)
1865 struct gdbarch_data_registration **curr;
1866 /* Append the new registraration. */
1867 for (curr = &gdbarch_data_registry.registrations;
1869 curr = &(*curr)->next);
1870 (*curr) = XMALLOC (struct gdbarch_data_registration);
1871 (*curr)->next = NULL;
1872 (*curr)->data = XMALLOC (struct gdbarch_data);
1873 (*curr)->data->index = gdbarch_data_registry.nr++;
1874 (*curr)->data->init = init;
1875 (*curr)->data->init_p = 1;
1876 (*curr)->data->free = free;
1877 return (*curr)->data;
1881 /* Create/delete the gdbarch data vector. */
1884 alloc_gdbarch_data (struct gdbarch *gdbarch)
1886 gdb_assert (gdbarch->data == NULL);
1887 gdbarch->nr_data = gdbarch_data_registry.nr;
1888 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1892 free_gdbarch_data (struct gdbarch *gdbarch)
1894 struct gdbarch_data_registration *rego;
1895 gdb_assert (gdbarch->data != NULL);
1896 for (rego = gdbarch_data_registry.registrations;
1900 struct gdbarch_data *data = rego->data;
1901 gdb_assert (data->index < gdbarch->nr_data);
1902 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1904 data->free (gdbarch, gdbarch->data[data->index]);
1905 gdbarch->data[data->index] = NULL;
1908 xfree (gdbarch->data);
1909 gdbarch->data = NULL;
1913 /* Initialize the current value of the specified per-architecture
1917 set_gdbarch_data (struct gdbarch *gdbarch,
1918 struct gdbarch_data *data,
1921 gdb_assert (data->index < gdbarch->nr_data);
1922 if (gdbarch->data[data->index] != NULL)
1924 gdb_assert (data->free != NULL);
1925 data->free (gdbarch, gdbarch->data[data->index]);
1927 gdbarch->data[data->index] = pointer;
1930 /* Return the current value of the specified per-architecture
1934 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1936 gdb_assert (data->index < gdbarch->nr_data);
1937 /* The data-pointer isn't initialized, call init() to get a value but
1938 only if the architecture initializaiton has completed. Otherwise
1939 punt - hope that the caller knows what they are doing. */
1940 if (gdbarch->data[data->index] == NULL
1941 && gdbarch->initialized_p)
1943 /* Be careful to detect an initialization cycle. */
1944 gdb_assert (data->init_p);
1946 gdb_assert (data->init != NULL);
1947 gdbarch->data[data->index] = data->init (gdbarch);
1949 gdb_assert (gdbarch->data[data->index] != NULL);
1951 return gdbarch->data[data->index];
1956 /* Keep a registry of swapped data required by GDB modules. */
1961 struct gdbarch_swap_registration *source;
1962 struct gdbarch_swap *next;
1965 struct gdbarch_swap_registration
1968 unsigned long sizeof_data;
1969 gdbarch_swap_ftype *init;
1970 struct gdbarch_swap_registration *next;
1973 struct gdbarch_swap_registry
1976 struct gdbarch_swap_registration *registrations;
1979 struct gdbarch_swap_registry gdbarch_swap_registry =
1985 register_gdbarch_swap (void *data,
1986 unsigned long sizeof_data,
1987 gdbarch_swap_ftype *init)
1989 struct gdbarch_swap_registration **rego;
1990 for (rego = &gdbarch_swap_registry.registrations;
1992 rego = &(*rego)->next);
1993 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1994 (*rego)->next = NULL;
1995 (*rego)->init = init;
1996 (*rego)->data = data;
1997 (*rego)->sizeof_data = sizeof_data;
2001 clear_gdbarch_swap (struct gdbarch *gdbarch)
2003 struct gdbarch_swap *curr;
2004 for (curr = gdbarch->swap;
2008 memset (curr->source->data, 0, curr->source->sizeof_data);
2013 init_gdbarch_swap (struct gdbarch *gdbarch)
2015 struct gdbarch_swap_registration *rego;
2016 struct gdbarch_swap **curr = &gdbarch->swap;
2017 for (rego = gdbarch_swap_registry.registrations;
2021 if (rego->data != NULL)
2023 (*curr) = XMALLOC (struct gdbarch_swap);
2024 (*curr)->source = rego;
2025 (*curr)->swap = xmalloc (rego->sizeof_data);
2026 (*curr)->next = NULL;
2027 curr = &(*curr)->next;
2029 if (rego->init != NULL)
2035 swapout_gdbarch_swap (struct gdbarch *gdbarch)
2037 struct gdbarch_swap *curr;
2038 for (curr = gdbarch->swap;
2041 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
2045 swapin_gdbarch_swap (struct gdbarch *gdbarch)
2047 struct gdbarch_swap *curr;
2048 for (curr = gdbarch->swap;
2051 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2055 /* Keep a registry of the architectures known by GDB. */
2057 struct gdbarch_registration
2059 enum bfd_architecture bfd_architecture;
2060 gdbarch_init_ftype *init;
2061 gdbarch_dump_tdep_ftype *dump_tdep;
2062 struct gdbarch_list *arches;
2063 struct gdbarch_registration *next;
2066 static struct gdbarch_registration *gdbarch_registry = NULL;
2069 append_name (const char ***buf, int *nr, const char *name)
2071 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2077 gdbarch_printable_names (void)
2081 /* Accumulate a list of names based on the registed list of
2083 enum bfd_architecture a;
2085 const char **arches = NULL;
2086 struct gdbarch_registration *rego;
2087 for (rego = gdbarch_registry;
2091 const struct bfd_arch_info *ap;
2092 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2094 internal_error (__FILE__, __LINE__,
2095 "gdbarch_architecture_names: multi-arch unknown");
2098 append_name (&arches, &nr_arches, ap->printable_name);
2103 append_name (&arches, &nr_arches, NULL);
2107 /* Just return all the architectures that BFD knows. Assume that
2108 the legacy architecture framework supports them. */
2109 return bfd_arch_list ();
2114 gdbarch_register (enum bfd_architecture bfd_architecture,
2115 gdbarch_init_ftype *init,
2116 gdbarch_dump_tdep_ftype *dump_tdep)
2118 struct gdbarch_registration **curr;
2119 const struct bfd_arch_info *bfd_arch_info;
2120 /* Check that BFD recognizes this architecture */
2121 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2122 if (bfd_arch_info == NULL)
2124 internal_error (__FILE__, __LINE__,
2125 "gdbarch: Attempt to register unknown architecture (%d)",
2128 /* Check that we haven't seen this architecture before */
2129 for (curr = &gdbarch_registry;
2131 curr = &(*curr)->next)
2133 if (bfd_architecture == (*curr)->bfd_architecture)
2134 internal_error (__FILE__, __LINE__,
2135 "gdbarch: Duplicate registraration of architecture (%s)",
2136 bfd_arch_info->printable_name);
2140 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2141 bfd_arch_info->printable_name,
2144 (*curr) = XMALLOC (struct gdbarch_registration);
2145 (*curr)->bfd_architecture = bfd_architecture;
2146 (*curr)->init = init;
2147 (*curr)->dump_tdep = dump_tdep;
2148 (*curr)->arches = NULL;
2149 (*curr)->next = NULL;
2150 /* When non- multi-arch, install whatever target dump routine we've
2151 been provided - hopefully that routine has been written correctly
2152 and works regardless of multi-arch. */
2153 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2154 && startup_gdbarch.dump_tdep == NULL)
2155 startup_gdbarch.dump_tdep = dump_tdep;
2159 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2160 gdbarch_init_ftype *init)
2162 gdbarch_register (bfd_architecture, init, NULL);
2166 /* Look for an architecture using gdbarch_info. Base search on only
2167 BFD_ARCH_INFO and BYTE_ORDER. */
2169 struct gdbarch_list *
2170 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2171 const struct gdbarch_info *info)
2173 for (; arches != NULL; arches = arches->next)
2175 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2177 if (info->byte_order != arches->gdbarch->byte_order)
2179 if (info->osabi != arches->gdbarch->osabi)
2187 /* Update the current architecture. Return ZERO if the update request
2191 gdbarch_update_p (struct gdbarch_info info)
2193 struct gdbarch *new_gdbarch;
2194 struct gdbarch *old_gdbarch;
2195 struct gdbarch_registration *rego;
2197 /* Fill in missing parts of the INFO struct using a number of
2198 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2200 /* \`\`(gdb) set architecture ...'' */
2201 if (info.bfd_arch_info == NULL
2202 && !TARGET_ARCHITECTURE_AUTO)
2203 info.bfd_arch_info = TARGET_ARCHITECTURE;
2204 if (info.bfd_arch_info == NULL
2205 && info.abfd != NULL
2206 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2207 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2208 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2209 if (info.bfd_arch_info == NULL)
2210 info.bfd_arch_info = TARGET_ARCHITECTURE;
2212 /* \`\`(gdb) set byte-order ...'' */
2213 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2214 && !TARGET_BYTE_ORDER_AUTO)
2215 info.byte_order = TARGET_BYTE_ORDER;
2216 /* From the INFO struct. */
2217 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2218 && info.abfd != NULL)
2219 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2220 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2221 : BFD_ENDIAN_UNKNOWN);
2222 /* From the current target. */
2223 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2224 info.byte_order = TARGET_BYTE_ORDER;
2226 /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi. */
2227 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2228 info.osabi = gdbarch_lookup_osabi (info.abfd);
2229 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2230 info.osabi = current_gdbarch->osabi;
2232 /* Must have found some sort of architecture. */
2233 gdb_assert (info.bfd_arch_info != NULL);
2237 fprintf_unfiltered (gdb_stdlog,
2238 "gdbarch_update: info.bfd_arch_info %s\n",
2239 (info.bfd_arch_info != NULL
2240 ? info.bfd_arch_info->printable_name
2242 fprintf_unfiltered (gdb_stdlog,
2243 "gdbarch_update: info.byte_order %d (%s)\n",
2245 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2246 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2248 fprintf_unfiltered (gdb_stdlog,
2249 "gdbarch_update: info.osabi %d (%s)\n",
2250 info.osabi, gdbarch_osabi_name (info.osabi));
2251 fprintf_unfiltered (gdb_stdlog,
2252 "gdbarch_update: info.abfd 0x%lx\n",
2254 fprintf_unfiltered (gdb_stdlog,
2255 "gdbarch_update: info.tdep_info 0x%lx\n",
2256 (long) info.tdep_info);
2259 /* Find the target that knows about this architecture. */
2260 for (rego = gdbarch_registry;
2263 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2268 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2272 /* Swap the data belonging to the old target out setting the
2273 installed data to zero. This stops the ->init() function trying
2274 to refer to the previous architecture's global data structures. */
2275 swapout_gdbarch_swap (current_gdbarch);
2276 clear_gdbarch_swap (current_gdbarch);
2278 /* Save the previously selected architecture, setting the global to
2279 NULL. This stops ->init() trying to use the previous
2280 architecture's configuration. The previous architecture may not
2281 even be of the same architecture family. The most recent
2282 architecture of the same family is found at the head of the
2283 rego->arches list. */
2284 old_gdbarch = current_gdbarch;
2285 current_gdbarch = NULL;
2287 /* Ask the target for a replacement architecture. */
2288 new_gdbarch = rego->init (info, rego->arches);
2290 /* Did the target like it? No. Reject the change and revert to the
2291 old architecture. */
2292 if (new_gdbarch == NULL)
2295 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2296 swapin_gdbarch_swap (old_gdbarch);
2297 current_gdbarch = old_gdbarch;
2301 /* Did the architecture change? No. Oops, put the old architecture
2303 if (old_gdbarch == new_gdbarch)
2306 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2308 new_gdbarch->bfd_arch_info->printable_name);
2309 swapin_gdbarch_swap (old_gdbarch);
2310 current_gdbarch = old_gdbarch;
2314 /* Is this a pre-existing architecture? Yes. Move it to the front
2315 of the list of architectures (keeping the list sorted Most
2316 Recently Used) and then copy it in. */
2318 struct gdbarch_list **list;
2319 for (list = ®o->arches;
2321 list = &(*list)->next)
2323 if ((*list)->gdbarch == new_gdbarch)
2325 struct gdbarch_list *this;
2327 fprintf_unfiltered (gdb_stdlog,
2328 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2330 new_gdbarch->bfd_arch_info->printable_name);
2333 (*list) = this->next;
2334 /* Insert in the front. */
2335 this->next = rego->arches;
2336 rego->arches = this;
2337 /* Copy the new architecture in. */
2338 current_gdbarch = new_gdbarch;
2339 swapin_gdbarch_swap (new_gdbarch);
2340 architecture_changed_event ();
2346 /* Prepend this new architecture to the architecture list (keep the
2347 list sorted Most Recently Used). */
2349 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2350 this->next = rego->arches;
2351 this->gdbarch = new_gdbarch;
2352 rego->arches = this;
2355 /* Switch to this new architecture marking it initialized. */
2356 current_gdbarch = new_gdbarch;
2357 current_gdbarch->initialized_p = 1;
2360 fprintf_unfiltered (gdb_stdlog,
2361 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2363 new_gdbarch->bfd_arch_info->printable_name);
2366 /* Check that the newly installed architecture is valid. Plug in
2367 any post init values. */
2368 new_gdbarch->dump_tdep = rego->dump_tdep;
2369 verify_gdbarch (new_gdbarch);
2371 /* Initialize the per-architecture memory (swap) areas.
2372 CURRENT_GDBARCH must be update before these modules are
2374 init_gdbarch_swap (new_gdbarch);
2376 /* Initialize the per-architecture data. CURRENT_GDBARCH
2377 must be updated before these modules are called. */
2378 architecture_changed_event ();
2381 gdbarch_dump (current_gdbarch, gdb_stdlog);
2389 /* Pointer to the target-dependent disassembly function. */
2390 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2391 disassemble_info tm_print_insn_info;
2394 extern void _initialize_gdbarch (void);
2397 _initialize_gdbarch (void)
2399 struct cmd_list_element *c;
2401 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2402 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2403 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2404 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2405 tm_print_insn_info.print_address_func = dis_asm_print_address;
2407 add_show_from_set (add_set_cmd ("arch",
2410 (char *)&gdbarch_debug,
2411 "Set architecture debugging.\\n\\
2412 When non-zero, architecture debugging is enabled.", &setdebuglist),
2414 c = add_set_cmd ("archdebug",
2417 (char *)&gdbarch_debug,
2418 "Set architecture debugging.\\n\\
2419 When non-zero, architecture debugging is enabled.", &setlist);
2421 deprecate_cmd (c, "set debug arch");
2422 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2428 #../move-if-change new-gdbarch.c gdbarch.c
2429 compare_new gdbarch.c