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
430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
431 # This is simply not needed. See value_of_builtin_frame_fp_reg and
432 # call_function_by_hand.
433 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
434 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
435 # The dummy call frame SP should be set by push_dummy_call.
436 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
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 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
456 # This is simply not needed. See value_of_builtin_frame_fp_reg and
457 # call_function_by_hand.
458 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
459 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
460 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
461 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
462 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
463 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
464 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
465 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
466 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
467 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
468 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
469 # Convert from an sdb register number to an internal gdb register number.
470 # This should be defined in tm.h, if REGISTER_NAMES is not set up
471 # to map one to one onto the sdb register numbers.
472 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
473 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
474 f:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
475 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
476 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
477 # NOTE: cagney/2002-05-02: This function with predicate has a valid
478 # (callable) initial value. As a consequence, even when the predicate
479 # is false, the corresponding function works. This simplifies the
480 # migration process - old code, calling REGISTER_BYTE, doesn't need to
482 F::REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
483 # The methods REGISTER_VIRTUAL_TYPE, REGISTER_VIRTUAL_SIZE and
484 # REGISTER_RAW_SIZE are all being replaced by REGISTER_TYPE.
485 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
486 # The methods DEPRECATED_MAX_REGISTER_RAW_SIZE and
487 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE are all being replaced by
488 # MAX_REGISTER_SIZE (a constant).
489 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
490 # The methods REGISTER_VIRTUAL_TYPE, REGISTER_VIRTUAL_SIZE and
491 # REGISTER_RAW_SIZE are all being replaced by REGISTER_TYPE.
492 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
493 # The methods DEPRECATED_MAX_REGISTER_RAW_SIZE and
494 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE are all being replaced by
495 # MAX_REGISTER_SIZE (a constant).
496 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
497 # The methods REGISTER_VIRTUAL_TYPE, REGISTER_VIRTUAL_SIZE and
498 # REGISTER_RAW_SIZE are all being replaced by REGISTER_TYPE.
499 F:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
500 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr::0:
502 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
503 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
504 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
505 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
506 # MAP a GDB RAW register number onto a simulator register number. See
507 # also include/...-sim.h.
508 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
509 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
510 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
511 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
512 # setjmp/longjmp support.
513 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
515 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
516 # much better but at least they are vaguely consistent). The headers
517 # and body contain convoluted #if/#else sequences for determine how
518 # things should be compiled. Instead of trying to mimic that
519 # behaviour here (and hence entrench it further) gdbarch simply
520 # reqires that these methods be set up from the word go. This also
521 # avoids any potential problems with moving beyond multi-arch partial.
522 v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
523 # Replaced by push_dummy_code.
524 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
525 # Replaced by push_dummy_code.
526 f::CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void::::entry_point_address::0
527 # Replaced by push_dummy_code.
528 v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset
529 # Replaced by push_dummy_code.
530 v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset
531 # Replaced by push_dummy_code.
532 v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length
533 # NOTE: cagney/2002-11-24: This function with predicate has a valid
534 # (callable) initial value. As a consequence, even when the predicate
535 # is false, the corresponding function works. This simplifies the
536 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
537 # doesn't need to be modified.
538 F::DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::generic_pc_in_call_dummy:generic_pc_in_call_dummy
539 # Replaced by push_dummy_code.
540 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
541 # Replaced by push_dummy_code.
542 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
543 # Replaced by push_dummy_code.
544 V:2:DEPRECATED_CALL_DUMMY_STACK_ADJUST:int:deprecated_call_dummy_stack_adjust::::0
545 # Replaced by push_dummy_code.
546 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
547 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
548 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:
549 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
550 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
552 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
553 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
554 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
556 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
557 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
558 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
560 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
561 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
562 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
564 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
565 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
566 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
568 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
569 # Replaced by PUSH_DUMMY_CALL
570 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
571 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
572 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-:::0
573 # NOTE: This can be handled directly in push_dummy_call.
574 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
575 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-:::0
576 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
577 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
579 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
580 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
581 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
582 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
584 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
585 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
586 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
588 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame:::0
589 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
591 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
592 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
593 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
594 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
595 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
596 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
597 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
598 f:2:PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
599 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
601 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
603 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
604 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
605 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame::0:0
606 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
607 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC. Please
608 # note, per UNWIND_PC's doco, that while the two have similar
609 # interfaces they have very different underlying implementations.
610 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi::0:0
611 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame:
612 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:get_frame_base::0
613 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:get_frame_base::0
614 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
615 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
617 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
618 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
619 # NOTE: cagney/2003-03-24: This is better handled by PUSH_ARGUMENTS.
620 v:2:DEPRECATED_EXTRA_STACK_ALIGNMENT_NEEDED:int:deprecated_extra_stack_alignment_needed::::0:0::0:::
621 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
622 # FIXME: kettenis/2003-03-08: This should be replaced by a function
623 # parametrized with (at least) the regcache.
624 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
625 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info::0:0
626 v:2:PARM_BOUNDARY:int:parm_boundary
628 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
629 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
630 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
631 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
632 # On some machines there are bits in addresses which are not really
633 # part of the address, but are used by the kernel, the hardware, etc.
634 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
635 # we get a "real" address such as one would find in a symbol table.
636 # This is used only for addresses of instructions, and even then I'm
637 # not sure it's used in all contexts. It exists to deal with there
638 # being a few stray bits in the PC which would mislead us, not as some
639 # sort of generic thing to handle alignment or segmentation (it's
640 # possible it should be in TARGET_READ_PC instead).
641 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
642 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
644 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
645 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
646 # the target needs software single step. An ISA method to implement it.
648 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
649 # using the breakpoint system instead of blatting memory directly (as with rs6000).
651 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
652 # single step. If not, then implement single step using breakpoints.
653 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
654 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
655 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
658 # For SVR4 shared libraries, each call goes through a small piece of
659 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
660 # to nonzero if we are currently stopped in one of these.
661 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
663 # Some systems also have trampoline code for returning from shared libs.
664 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
666 # Sigtramp is a routine that the kernel calls (which then calls the
667 # signal handler). On most machines it is a library routine that is
668 # linked into the executable.
670 # This macro, given a program counter value and the name of the
671 # function in which that PC resides (which can be null if the name is
672 # not known), returns nonzero if the PC and name show that we are in
675 # On most machines just see if the name is sigtramp (and if we have
676 # no name, assume we are not in sigtramp).
678 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
679 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
680 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
681 # own local NAME lookup.
683 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
684 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
686 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
687 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
688 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
689 # A target might have problems with watchpoints as soon as the stack
690 # frame of the current function has been destroyed. This mostly happens
691 # as the first action in a funtion's epilogue. in_function_epilogue_p()
692 # is defined to return a non-zero value if either the given addr is one
693 # instruction after the stack destroying instruction up to the trailing
694 # return instruction or if we can figure out that the stack frame has
695 # already been invalidated regardless of the value of addr. Targets
696 # which don't suffer from that problem could just let this functionality
698 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
699 # Given a vector of command-line arguments, return a newly allocated
700 # string which, when passed to the create_inferior function, will be
701 # parsed (on Unix systems, by the shell) to yield the same vector.
702 # This function should call error() if the argument vector is not
703 # representable for this target or if this target does not support
704 # command-line arguments.
705 # ARGC is the number of elements in the vector.
706 # ARGV is an array of strings, one per argument.
707 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
708 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
709 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
710 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
711 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
712 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
713 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
714 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
715 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags:
716 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
717 # Is a register in a group
718 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
719 # Fetch the pointer to the ith function argument.
720 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type:::::::::
727 exec > new-gdbarch.log
728 function_list | while do_read
731 ${class} ${macro}(${actual})
732 ${returntype} ${function} ($formal)${attrib}
736 eval echo \"\ \ \ \ ${r}=\${${r}}\"
738 if class_is_predicate_p && fallback_default_p
740 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
744 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
746 echo "Error: postdefault is useless when invalid_p=0" 1>&2
750 if class_is_multiarch_p
752 if class_is_predicate_p ; then :
753 elif test "x${predefault}" = "x"
755 echo "Error: pure multi-arch function must have a predefault" 1>&2
764 compare_new gdbarch.log
770 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
772 /* Dynamic architecture support for GDB, the GNU debugger.
773 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
775 This file is part of GDB.
777 This program is free software; you can redistribute it and/or modify
778 it under the terms of the GNU General Public License as published by
779 the Free Software Foundation; either version 2 of the License, or
780 (at your option) any later version.
782 This program is distributed in the hope that it will be useful,
783 but WITHOUT ANY WARRANTY; without even the implied warranty of
784 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
785 GNU General Public License for more details.
787 You should have received a copy of the GNU General Public License
788 along with this program; if not, write to the Free Software
789 Foundation, Inc., 59 Temple Place - Suite 330,
790 Boston, MA 02111-1307, USA. */
792 /* This file was created with the aid of \`\`gdbarch.sh''.
794 The Bourne shell script \`\`gdbarch.sh'' creates the files
795 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
796 against the existing \`\`gdbarch.[hc]''. Any differences found
799 If editing this file, please also run gdbarch.sh and merge any
800 changes into that script. Conversely, when making sweeping changes
801 to this file, modifying gdbarch.sh and using its output may prove
817 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
819 /* Pull in function declarations refered to, indirectly, via macros. */
820 #include "inferior.h" /* For unsigned_address_to_pointer(). */
821 #include "symfile.h" /* For entry_point_address(). */
829 struct minimal_symbol;
833 extern struct gdbarch *current_gdbarch;
836 /* If any of the following are defined, the target wasn't correctly
839 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
840 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
847 printf "/* The following are pre-initialized by GDBARCH. */\n"
848 function_list | while do_read
853 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
854 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
855 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
856 printf "#error \"Non multi-arch definition of ${macro}\"\n"
858 printf "#if !defined (${macro})\n"
859 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
867 printf "/* The following are initialized by the target dependent code. */\n"
868 function_list | while do_read
870 if [ -n "${comment}" ]
872 echo "${comment}" | sed \
877 if class_is_multiarch_p
879 if class_is_predicate_p
882 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
885 if class_is_predicate_p
888 printf "#if defined (${macro})\n"
889 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
890 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
891 printf "#if !defined (${macro}_P)\n"
892 printf "#define ${macro}_P() (1)\n"
896 printf "/* Default predicate for non- multi-arch targets. */\n"
897 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
898 printf "#define ${macro}_P() (0)\n"
901 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
902 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
903 printf "#error \"Non multi-arch definition of ${macro}\"\n"
905 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
906 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
910 if class_is_variable_p
912 if fallback_default_p || class_is_predicate_p
915 printf "/* Default (value) for non- multi-arch platforms. */\n"
916 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
917 echo "#define ${macro} (${fallbackdefault})" \
918 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
922 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
923 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
924 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
925 printf "#error \"Non multi-arch definition of ${macro}\"\n"
927 printf "#if !defined (${macro})\n"
928 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
931 if class_is_function_p
933 if class_is_multiarch_p ; then :
934 elif fallback_default_p || class_is_predicate_p
937 printf "/* Default (function) for non- multi-arch platforms. */\n"
938 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
939 if [ "x${fallbackdefault}" = "x0" ]
941 if [ "x${actual}" = "x-" ]
943 printf "#define ${macro} (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
945 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
948 # FIXME: Should be passing current_gdbarch through!
949 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
950 | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
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. 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 /* Use gdb_disassemble, and gdbarch_print_insn instead. */
1223 extern int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info*);
1225 /* Use set_gdbarch_print_insn instead. */
1226 extern disassemble_info deprecated_tm_print_insn_info;
1228 /* Set the dynamic target-system-dependent parameters (architecture,
1229 byte-order, ...) using information found in the BFD */
1231 extern void set_gdbarch_from_file (bfd *);
1234 /* Initialize the current architecture to the "first" one we find on
1237 extern void initialize_current_architecture (void);
1239 /* For non-multiarched targets, do any initialization of the default
1240 gdbarch object necessary after the _initialize_MODULE functions
1242 extern void initialize_non_multiarch (void);
1244 /* gdbarch trace variable */
1245 extern int gdbarch_debug;
1247 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1252 #../move-if-change new-gdbarch.h gdbarch.h
1253 compare_new gdbarch.h
1260 exec > new-gdbarch.c
1265 #include "arch-utils.h"
1269 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1271 /* Just include everything in sight so that the every old definition
1272 of macro is visible. */
1273 #include "gdb_string.h"
1277 #include "inferior.h"
1278 #include "breakpoint.h"
1279 #include "gdb_wait.h"
1280 #include "gdbcore.h"
1283 #include "gdbthread.h"
1284 #include "annotate.h"
1285 #include "symfile.h" /* for overlay functions */
1286 #include "value.h" /* For old tm.h/nm.h macros. */
1290 #include "floatformat.h"
1292 #include "gdb_assert.h"
1293 #include "gdb_string.h"
1294 #include "gdb-events.h"
1295 #include "reggroups.h"
1297 #include "symfile.h" /* For entry_point_address. */
1299 /* Static function declarations */
1301 static void verify_gdbarch (struct gdbarch *gdbarch);
1302 static void alloc_gdbarch_data (struct gdbarch *);
1303 static void free_gdbarch_data (struct gdbarch *);
1304 static void init_gdbarch_swap (struct gdbarch *);
1305 static void clear_gdbarch_swap (struct gdbarch *);
1306 static void swapout_gdbarch_swap (struct gdbarch *);
1307 static void swapin_gdbarch_swap (struct gdbarch *);
1309 /* Non-zero if we want to trace architecture code. */
1311 #ifndef GDBARCH_DEBUG
1312 #define GDBARCH_DEBUG 0
1314 int gdbarch_debug = GDBARCH_DEBUG;
1318 # gdbarch open the gdbarch object
1320 printf "/* Maintain the struct gdbarch object */\n"
1322 printf "struct gdbarch\n"
1324 printf " /* Has this architecture been fully initialized? */\n"
1325 printf " int initialized_p;\n"
1326 printf " /* basic architectural information */\n"
1327 function_list | while do_read
1331 printf " ${returntype} ${function};\n"
1335 printf " /* target specific vector. */\n"
1336 printf " struct gdbarch_tdep *tdep;\n"
1337 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1339 printf " /* per-architecture data-pointers */\n"
1340 printf " unsigned nr_data;\n"
1341 printf " void **data;\n"
1343 printf " /* per-architecture swap-regions */\n"
1344 printf " struct gdbarch_swap *swap;\n"
1347 /* Multi-arch values.
1349 When extending this structure you must:
1351 Add the field below.
1353 Declare set/get functions and define the corresponding
1356 gdbarch_alloc(): If zero/NULL is not a suitable default,
1357 initialize the new field.
1359 verify_gdbarch(): Confirm that the target updated the field
1362 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1365 \`\`startup_gdbarch()'': Append an initial value to the static
1366 variable (base values on the host's c-type system).
1368 get_gdbarch(): Implement the set/get functions (probably using
1369 the macro's as shortcuts).
1374 function_list | while do_read
1376 if class_is_variable_p
1378 printf " ${returntype} ${function};\n"
1379 elif class_is_function_p
1381 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1386 # A pre-initialized vector
1390 /* The default architecture uses host values (for want of a better
1394 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1396 printf "struct gdbarch startup_gdbarch =\n"
1398 printf " 1, /* Always initialized. */\n"
1399 printf " /* basic architecture information */\n"
1400 function_list | while do_read
1404 printf " ${staticdefault}, /* ${function} */\n"
1408 /* target specific vector and its dump routine */
1410 /*per-architecture data-pointers and swap regions */
1412 /* Multi-arch values */
1414 function_list | while do_read
1416 if class_is_function_p || class_is_variable_p
1418 printf " ${staticdefault}, /* ${function} */\n"
1422 /* startup_gdbarch() */
1425 struct gdbarch *current_gdbarch = &startup_gdbarch;
1427 /* Do any initialization needed for a non-multiarch configuration
1428 after the _initialize_MODULE functions have been run. */
1430 initialize_non_multiarch (void)
1432 alloc_gdbarch_data (&startup_gdbarch);
1433 /* Ensure that all swap areas are zeroed so that they again think
1434 they are starting from scratch. */
1435 clear_gdbarch_swap (&startup_gdbarch);
1436 init_gdbarch_swap (&startup_gdbarch);
1440 # Create a new gdbarch struct
1444 /* Create a new \`\`struct gdbarch'' based on information provided by
1445 \`\`struct gdbarch_info''. */
1450 gdbarch_alloc (const struct gdbarch_info *info,
1451 struct gdbarch_tdep *tdep)
1453 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1454 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1455 the current local architecture and not the previous global
1456 architecture. This ensures that the new architectures initial
1457 values are not influenced by the previous architecture. Once
1458 everything is parameterised with gdbarch, this will go away. */
1459 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1460 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1462 alloc_gdbarch_data (current_gdbarch);
1464 current_gdbarch->tdep = tdep;
1467 function_list | while do_read
1471 printf " current_gdbarch->${function} = info->${function};\n"
1475 printf " /* Force the explicit initialization of these. */\n"
1476 function_list | while do_read
1478 if class_is_function_p || class_is_variable_p
1480 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1482 printf " current_gdbarch->${function} = ${predefault};\n"
1487 /* gdbarch_alloc() */
1489 return current_gdbarch;
1493 # Free a gdbarch struct.
1497 /* Free a gdbarch struct. This should never happen in normal
1498 operation --- once you've created a gdbarch, you keep it around.
1499 However, if an architecture's init function encounters an error
1500 building the structure, it may need to clean up a partially
1501 constructed gdbarch. */
1504 gdbarch_free (struct gdbarch *arch)
1506 gdb_assert (arch != NULL);
1507 free_gdbarch_data (arch);
1512 # verify a new architecture
1515 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1519 verify_gdbarch (struct gdbarch *gdbarch)
1521 struct ui_file *log;
1522 struct cleanup *cleanups;
1525 /* Only perform sanity checks on a multi-arch target. */
1526 if (!GDB_MULTI_ARCH)
1528 log = mem_fileopen ();
1529 cleanups = make_cleanup_ui_file_delete (log);
1531 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1532 fprintf_unfiltered (log, "\n\tbyte-order");
1533 if (gdbarch->bfd_arch_info == NULL)
1534 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1535 /* Check those that need to be defined for the given multi-arch level. */
1537 function_list | while do_read
1539 if class_is_function_p || class_is_variable_p
1541 if [ "x${invalid_p}" = "x0" ]
1543 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1544 elif class_is_predicate_p
1546 printf " /* Skip verify of ${function}, has predicate */\n"
1547 # FIXME: See do_read for potential simplification
1548 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1550 printf " if (${invalid_p})\n"
1551 printf " gdbarch->${function} = ${postdefault};\n"
1552 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1554 printf " if (gdbarch->${function} == ${predefault})\n"
1555 printf " gdbarch->${function} = ${postdefault};\n"
1556 elif [ -n "${postdefault}" ]
1558 printf " if (gdbarch->${function} == 0)\n"
1559 printf " gdbarch->${function} = ${postdefault};\n"
1560 elif [ -n "${invalid_p}" ]
1562 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1563 printf " && (${invalid_p}))\n"
1564 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1565 elif [ -n "${predefault}" ]
1567 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1568 printf " && (gdbarch->${function} == ${predefault}))\n"
1569 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1574 buf = ui_file_xstrdup (log, &dummy);
1575 make_cleanup (xfree, buf);
1576 if (strlen (buf) > 0)
1577 internal_error (__FILE__, __LINE__,
1578 "verify_gdbarch: the following are invalid ...%s",
1580 do_cleanups (cleanups);
1584 # dump the structure
1588 /* Print out the details of the current architecture. */
1590 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1591 just happens to match the global variable \`\`current_gdbarch''. That
1592 way macros refering to that variable get the local and not the global
1593 version - ulgh. Once everything is parameterised with gdbarch, this
1597 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1599 fprintf_unfiltered (file,
1600 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1603 function_list | sort -t: -k 3 | while do_read
1605 # First the predicate
1606 if class_is_predicate_p
1608 if class_is_multiarch_p
1610 printf " if (GDB_MULTI_ARCH)\n"
1611 printf " fprintf_unfiltered (file,\n"
1612 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1613 printf " gdbarch_${function}_p (current_gdbarch));\n"
1615 printf "#ifdef ${macro}_P\n"
1616 printf " fprintf_unfiltered (file,\n"
1617 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1618 printf " \"${macro}_P()\",\n"
1619 printf " XSTRING (${macro}_P ()));\n"
1620 printf " fprintf_unfiltered (file,\n"
1621 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1622 printf " ${macro}_P ());\n"
1626 # multiarch functions don't have macros.
1627 if class_is_multiarch_p
1629 printf " if (GDB_MULTI_ARCH)\n"
1630 printf " fprintf_unfiltered (file,\n"
1631 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1632 printf " (long) current_gdbarch->${function});\n"
1635 # Print the macro definition.
1636 printf "#ifdef ${macro}\n"
1637 if [ "x${returntype}" = "xvoid" ]
1639 printf "#if GDB_MULTI_ARCH\n"
1640 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1642 if class_is_function_p
1644 printf " fprintf_unfiltered (file,\n"
1645 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1646 printf " \"${macro}(${actual})\",\n"
1647 printf " XSTRING (${macro} (${actual})));\n"
1649 printf " fprintf_unfiltered (file,\n"
1650 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1651 printf " XSTRING (${macro}));\n"
1653 # Print the architecture vector value
1654 if [ "x${returntype}" = "xvoid" ]
1658 if [ "x${print_p}" = "x()" ]
1660 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1661 elif [ "x${print_p}" = "x0" ]
1663 printf " /* skip print of ${macro}, print_p == 0. */\n"
1664 elif [ -n "${print_p}" ]
1666 printf " if (${print_p})\n"
1667 printf " fprintf_unfiltered (file,\n"
1668 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1669 printf " ${print});\n"
1670 elif class_is_function_p
1672 printf " if (GDB_MULTI_ARCH)\n"
1673 printf " fprintf_unfiltered (file,\n"
1674 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1675 printf " (long) current_gdbarch->${function}\n"
1676 printf " /*${macro} ()*/);\n"
1678 printf " fprintf_unfiltered (file,\n"
1679 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1680 printf " ${print});\n"
1685 if (current_gdbarch->dump_tdep != NULL)
1686 current_gdbarch->dump_tdep (current_gdbarch, file);
1694 struct gdbarch_tdep *
1695 gdbarch_tdep (struct gdbarch *gdbarch)
1697 if (gdbarch_debug >= 2)
1698 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1699 return gdbarch->tdep;
1703 function_list | while do_read
1705 if class_is_predicate_p
1709 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1711 printf " gdb_assert (gdbarch != NULL);\n"
1712 if [ -n "${predicate}" ]
1714 printf " return ${predicate};\n"
1716 printf " return gdbarch->${function} != 0;\n"
1720 if class_is_function_p
1723 printf "${returntype}\n"
1724 if [ "x${formal}" = "xvoid" ]
1726 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1728 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1731 printf " gdb_assert (gdbarch != NULL);\n"
1732 printf " if (gdbarch->${function} == 0)\n"
1733 printf " internal_error (__FILE__, __LINE__,\n"
1734 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1735 if class_is_predicate_p && test -n "${predicate}"
1737 # Allow a call to a function with a predicate.
1738 printf " /* Ignore predicate (${predicate}). */\n"
1740 printf " if (gdbarch_debug >= 2)\n"
1741 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1742 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1744 if class_is_multiarch_p
1751 if class_is_multiarch_p
1753 params="gdbarch, ${actual}"
1758 if [ "x${returntype}" = "xvoid" ]
1760 printf " gdbarch->${function} (${params});\n"
1762 printf " return gdbarch->${function} (${params});\n"
1767 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1768 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1770 printf " gdbarch->${function} = ${function};\n"
1772 elif class_is_variable_p
1775 printf "${returntype}\n"
1776 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1778 printf " gdb_assert (gdbarch != NULL);\n"
1779 if [ "x${invalid_p}" = "x0" ]
1781 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1782 elif [ -n "${invalid_p}" ]
1784 printf " if (${invalid_p})\n"
1785 printf " internal_error (__FILE__, __LINE__,\n"
1786 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1787 elif [ -n "${predefault}" ]
1789 printf " if (gdbarch->${function} == ${predefault})\n"
1790 printf " internal_error (__FILE__, __LINE__,\n"
1791 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1793 printf " if (gdbarch_debug >= 2)\n"
1794 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1795 printf " return gdbarch->${function};\n"
1799 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1800 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1802 printf " gdbarch->${function} = ${function};\n"
1804 elif class_is_info_p
1807 printf "${returntype}\n"
1808 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1810 printf " gdb_assert (gdbarch != NULL);\n"
1811 printf " if (gdbarch_debug >= 2)\n"
1812 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1813 printf " return gdbarch->${function};\n"
1818 # All the trailing guff
1822 /* Keep a registry of per-architecture data-pointers required by GDB
1829 gdbarch_data_init_ftype *init;
1830 gdbarch_data_free_ftype *free;
1833 struct gdbarch_data_registration
1835 struct gdbarch_data *data;
1836 struct gdbarch_data_registration *next;
1839 struct gdbarch_data_registry
1842 struct gdbarch_data_registration *registrations;
1845 struct gdbarch_data_registry gdbarch_data_registry =
1850 struct gdbarch_data *
1851 register_gdbarch_data (gdbarch_data_init_ftype *init,
1852 gdbarch_data_free_ftype *free)
1854 struct gdbarch_data_registration **curr;
1855 /* Append the new registraration. */
1856 for (curr = &gdbarch_data_registry.registrations;
1858 curr = &(*curr)->next);
1859 (*curr) = XMALLOC (struct gdbarch_data_registration);
1860 (*curr)->next = NULL;
1861 (*curr)->data = XMALLOC (struct gdbarch_data);
1862 (*curr)->data->index = gdbarch_data_registry.nr++;
1863 (*curr)->data->init = init;
1864 (*curr)->data->init_p = 1;
1865 (*curr)->data->free = free;
1866 return (*curr)->data;
1870 /* Create/delete the gdbarch data vector. */
1873 alloc_gdbarch_data (struct gdbarch *gdbarch)
1875 gdb_assert (gdbarch->data == NULL);
1876 gdbarch->nr_data = gdbarch_data_registry.nr;
1877 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1881 free_gdbarch_data (struct gdbarch *gdbarch)
1883 struct gdbarch_data_registration *rego;
1884 gdb_assert (gdbarch->data != NULL);
1885 for (rego = gdbarch_data_registry.registrations;
1889 struct gdbarch_data *data = rego->data;
1890 gdb_assert (data->index < gdbarch->nr_data);
1891 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1893 data->free (gdbarch, gdbarch->data[data->index]);
1894 gdbarch->data[data->index] = NULL;
1897 xfree (gdbarch->data);
1898 gdbarch->data = NULL;
1902 /* Initialize the current value of the specified per-architecture
1906 set_gdbarch_data (struct gdbarch *gdbarch,
1907 struct gdbarch_data *data,
1910 gdb_assert (data->index < gdbarch->nr_data);
1911 if (gdbarch->data[data->index] != NULL)
1913 gdb_assert (data->free != NULL);
1914 data->free (gdbarch, gdbarch->data[data->index]);
1916 gdbarch->data[data->index] = pointer;
1919 /* Return the current value of the specified per-architecture
1923 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1925 gdb_assert (data->index < gdbarch->nr_data);
1926 /* The data-pointer isn't initialized, call init() to get a value but
1927 only if the architecture initializaiton has completed. Otherwise
1928 punt - hope that the caller knows what they are doing. */
1929 if (gdbarch->data[data->index] == NULL
1930 && gdbarch->initialized_p)
1932 /* Be careful to detect an initialization cycle. */
1933 gdb_assert (data->init_p);
1935 gdb_assert (data->init != NULL);
1936 gdbarch->data[data->index] = data->init (gdbarch);
1938 gdb_assert (gdbarch->data[data->index] != NULL);
1940 return gdbarch->data[data->index];
1945 /* Keep a registry of swapped data required by GDB modules. */
1950 struct gdbarch_swap_registration *source;
1951 struct gdbarch_swap *next;
1954 struct gdbarch_swap_registration
1957 unsigned long sizeof_data;
1958 gdbarch_swap_ftype *init;
1959 struct gdbarch_swap_registration *next;
1962 struct gdbarch_swap_registry
1965 struct gdbarch_swap_registration *registrations;
1968 struct gdbarch_swap_registry gdbarch_swap_registry =
1974 register_gdbarch_swap (void *data,
1975 unsigned long sizeof_data,
1976 gdbarch_swap_ftype *init)
1978 struct gdbarch_swap_registration **rego;
1979 for (rego = &gdbarch_swap_registry.registrations;
1981 rego = &(*rego)->next);
1982 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1983 (*rego)->next = NULL;
1984 (*rego)->init = init;
1985 (*rego)->data = data;
1986 (*rego)->sizeof_data = sizeof_data;
1990 clear_gdbarch_swap (struct gdbarch *gdbarch)
1992 struct gdbarch_swap *curr;
1993 for (curr = gdbarch->swap;
1997 memset (curr->source->data, 0, curr->source->sizeof_data);
2002 init_gdbarch_swap (struct gdbarch *gdbarch)
2004 struct gdbarch_swap_registration *rego;
2005 struct gdbarch_swap **curr = &gdbarch->swap;
2006 for (rego = gdbarch_swap_registry.registrations;
2010 if (rego->data != NULL)
2012 (*curr) = XMALLOC (struct gdbarch_swap);
2013 (*curr)->source = rego;
2014 (*curr)->swap = xmalloc (rego->sizeof_data);
2015 (*curr)->next = NULL;
2016 curr = &(*curr)->next;
2018 if (rego->init != NULL)
2024 swapout_gdbarch_swap (struct gdbarch *gdbarch)
2026 struct gdbarch_swap *curr;
2027 for (curr = gdbarch->swap;
2030 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
2034 swapin_gdbarch_swap (struct gdbarch *gdbarch)
2036 struct gdbarch_swap *curr;
2037 for (curr = gdbarch->swap;
2040 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2044 /* Keep a registry of the architectures known by GDB. */
2046 struct gdbarch_registration
2048 enum bfd_architecture bfd_architecture;
2049 gdbarch_init_ftype *init;
2050 gdbarch_dump_tdep_ftype *dump_tdep;
2051 struct gdbarch_list *arches;
2052 struct gdbarch_registration *next;
2055 static struct gdbarch_registration *gdbarch_registry = NULL;
2058 append_name (const char ***buf, int *nr, const char *name)
2060 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2066 gdbarch_printable_names (void)
2070 /* Accumulate a list of names based on the registed list of
2072 enum bfd_architecture a;
2074 const char **arches = NULL;
2075 struct gdbarch_registration *rego;
2076 for (rego = gdbarch_registry;
2080 const struct bfd_arch_info *ap;
2081 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2083 internal_error (__FILE__, __LINE__,
2084 "gdbarch_architecture_names: multi-arch unknown");
2087 append_name (&arches, &nr_arches, ap->printable_name);
2092 append_name (&arches, &nr_arches, NULL);
2096 /* Just return all the architectures that BFD knows. Assume that
2097 the legacy architecture framework supports them. */
2098 return bfd_arch_list ();
2103 gdbarch_register (enum bfd_architecture bfd_architecture,
2104 gdbarch_init_ftype *init,
2105 gdbarch_dump_tdep_ftype *dump_tdep)
2107 struct gdbarch_registration **curr;
2108 const struct bfd_arch_info *bfd_arch_info;
2109 /* Check that BFD recognizes this architecture */
2110 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2111 if (bfd_arch_info == NULL)
2113 internal_error (__FILE__, __LINE__,
2114 "gdbarch: Attempt to register unknown architecture (%d)",
2117 /* Check that we haven't seen this architecture before */
2118 for (curr = &gdbarch_registry;
2120 curr = &(*curr)->next)
2122 if (bfd_architecture == (*curr)->bfd_architecture)
2123 internal_error (__FILE__, __LINE__,
2124 "gdbarch: Duplicate registraration of architecture (%s)",
2125 bfd_arch_info->printable_name);
2129 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2130 bfd_arch_info->printable_name,
2133 (*curr) = XMALLOC (struct gdbarch_registration);
2134 (*curr)->bfd_architecture = bfd_architecture;
2135 (*curr)->init = init;
2136 (*curr)->dump_tdep = dump_tdep;
2137 (*curr)->arches = NULL;
2138 (*curr)->next = NULL;
2139 /* When non- multi-arch, install whatever target dump routine we've
2140 been provided - hopefully that routine has been written correctly
2141 and works regardless of multi-arch. */
2142 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2143 && startup_gdbarch.dump_tdep == NULL)
2144 startup_gdbarch.dump_tdep = dump_tdep;
2148 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2149 gdbarch_init_ftype *init)
2151 gdbarch_register (bfd_architecture, init, NULL);
2155 /* Look for an architecture using gdbarch_info. Base search on only
2156 BFD_ARCH_INFO and BYTE_ORDER. */
2158 struct gdbarch_list *
2159 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2160 const struct gdbarch_info *info)
2162 for (; arches != NULL; arches = arches->next)
2164 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2166 if (info->byte_order != arches->gdbarch->byte_order)
2168 if (info->osabi != arches->gdbarch->osabi)
2176 /* Update the current architecture. Return ZERO if the update request
2180 gdbarch_update_p (struct gdbarch_info info)
2182 struct gdbarch *new_gdbarch;
2183 struct gdbarch *old_gdbarch;
2184 struct gdbarch_registration *rego;
2186 /* Fill in missing parts of the INFO struct using a number of
2187 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2189 /* \`\`(gdb) set architecture ...'' */
2190 if (info.bfd_arch_info == NULL
2191 && !TARGET_ARCHITECTURE_AUTO)
2192 info.bfd_arch_info = TARGET_ARCHITECTURE;
2193 if (info.bfd_arch_info == NULL
2194 && info.abfd != NULL
2195 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2196 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2197 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2198 if (info.bfd_arch_info == NULL)
2199 info.bfd_arch_info = TARGET_ARCHITECTURE;
2201 /* \`\`(gdb) set byte-order ...'' */
2202 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2203 && !TARGET_BYTE_ORDER_AUTO)
2204 info.byte_order = TARGET_BYTE_ORDER;
2205 /* From the INFO struct. */
2206 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2207 && info.abfd != NULL)
2208 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2209 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2210 : BFD_ENDIAN_UNKNOWN);
2211 /* From the current target. */
2212 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2213 info.byte_order = TARGET_BYTE_ORDER;
2215 /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi. */
2216 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2217 info.osabi = gdbarch_lookup_osabi (info.abfd);
2218 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2219 info.osabi = current_gdbarch->osabi;
2221 /* Must have found some sort of architecture. */
2222 gdb_assert (info.bfd_arch_info != NULL);
2226 fprintf_unfiltered (gdb_stdlog,
2227 "gdbarch_update: info.bfd_arch_info %s\n",
2228 (info.bfd_arch_info != NULL
2229 ? info.bfd_arch_info->printable_name
2231 fprintf_unfiltered (gdb_stdlog,
2232 "gdbarch_update: info.byte_order %d (%s)\n",
2234 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2235 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2237 fprintf_unfiltered (gdb_stdlog,
2238 "gdbarch_update: info.osabi %d (%s)\n",
2239 info.osabi, gdbarch_osabi_name (info.osabi));
2240 fprintf_unfiltered (gdb_stdlog,
2241 "gdbarch_update: info.abfd 0x%lx\n",
2243 fprintf_unfiltered (gdb_stdlog,
2244 "gdbarch_update: info.tdep_info 0x%lx\n",
2245 (long) info.tdep_info);
2248 /* Find the target that knows about this architecture. */
2249 for (rego = gdbarch_registry;
2252 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2257 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2261 /* Swap the data belonging to the old target out setting the
2262 installed data to zero. This stops the ->init() function trying
2263 to refer to the previous architecture's global data structures. */
2264 swapout_gdbarch_swap (current_gdbarch);
2265 clear_gdbarch_swap (current_gdbarch);
2267 /* Save the previously selected architecture, setting the global to
2268 NULL. This stops ->init() trying to use the previous
2269 architecture's configuration. The previous architecture may not
2270 even be of the same architecture family. The most recent
2271 architecture of the same family is found at the head of the
2272 rego->arches list. */
2273 old_gdbarch = current_gdbarch;
2274 current_gdbarch = NULL;
2276 /* Ask the target for a replacement architecture. */
2277 new_gdbarch = rego->init (info, rego->arches);
2279 /* Did the target like it? No. Reject the change and revert to the
2280 old architecture. */
2281 if (new_gdbarch == NULL)
2284 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2285 swapin_gdbarch_swap (old_gdbarch);
2286 current_gdbarch = old_gdbarch;
2290 /* Did the architecture change? No. Oops, put the old architecture
2292 if (old_gdbarch == new_gdbarch)
2295 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2297 new_gdbarch->bfd_arch_info->printable_name);
2298 swapin_gdbarch_swap (old_gdbarch);
2299 current_gdbarch = old_gdbarch;
2303 /* Is this a pre-existing architecture? Yes. Move it to the front
2304 of the list of architectures (keeping the list sorted Most
2305 Recently Used) and then copy it in. */
2307 struct gdbarch_list **list;
2308 for (list = ®o->arches;
2310 list = &(*list)->next)
2312 if ((*list)->gdbarch == new_gdbarch)
2314 struct gdbarch_list *this;
2316 fprintf_unfiltered (gdb_stdlog,
2317 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2319 new_gdbarch->bfd_arch_info->printable_name);
2322 (*list) = this->next;
2323 /* Insert in the front. */
2324 this->next = rego->arches;
2325 rego->arches = this;
2326 /* Copy the new architecture in. */
2327 current_gdbarch = new_gdbarch;
2328 swapin_gdbarch_swap (new_gdbarch);
2329 architecture_changed_event ();
2335 /* Prepend this new architecture to the architecture list (keep the
2336 list sorted Most Recently Used). */
2338 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2339 this->next = rego->arches;
2340 this->gdbarch = new_gdbarch;
2341 rego->arches = this;
2344 /* Switch to this new architecture marking it initialized. */
2345 current_gdbarch = new_gdbarch;
2346 current_gdbarch->initialized_p = 1;
2349 fprintf_unfiltered (gdb_stdlog,
2350 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2352 new_gdbarch->bfd_arch_info->printable_name);
2355 /* Check that the newly installed architecture is valid. Plug in
2356 any post init values. */
2357 new_gdbarch->dump_tdep = rego->dump_tdep;
2358 verify_gdbarch (new_gdbarch);
2360 /* Initialize the per-architecture memory (swap) areas.
2361 CURRENT_GDBARCH must be update before these modules are
2363 init_gdbarch_swap (new_gdbarch);
2365 /* Initialize the per-architecture data. CURRENT_GDBARCH
2366 must be updated before these modules are called. */
2367 architecture_changed_event ();
2370 gdbarch_dump (current_gdbarch, gdb_stdlog);
2378 /* Pointer to the target-dependent disassembly function. */
2379 int (*deprecated_tm_print_insn) (bfd_vma, disassemble_info *);
2381 extern void _initialize_gdbarch (void);
2384 _initialize_gdbarch (void)
2386 struct cmd_list_element *c;
2388 add_show_from_set (add_set_cmd ("arch",
2391 (char *)&gdbarch_debug,
2392 "Set architecture debugging.\\n\\
2393 When non-zero, architecture debugging is enabled.", &setdebuglist),
2395 c = add_set_cmd ("archdebug",
2398 (char *)&gdbarch_debug,
2399 "Set architecture debugging.\\n\\
2400 When non-zero, architecture debugging is enabled.", &setlist);
2402 deprecate_cmd (c, "set debug arch");
2403 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2409 #../move-if-change new-gdbarch.c gdbarch.c
2410 compare_new gdbarch.c