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" ;;
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
390 # Number of bits in a char or unsigned char for the target machine.
391 # Just like CHAR_BIT in <limits.h> but describes the target machine.
392 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
394 # Number of bits in a short or unsigned short for the target machine.
395 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
396 # Number of bits in an int or unsigned int for the target machine.
397 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
398 # Number of bits in a long or unsigned long for the target machine.
399 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
400 # Number of bits in a long long or unsigned long long for the target
402 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
403 # Number of bits in a float for the target machine.
404 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
405 # Number of bits in a double for the target machine.
406 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
407 # Number of bits in a long double for the target machine.
408 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
409 # For most targets, a pointer on the target and its representation as an
410 # address in GDB have the same size and "look the same". For such a
411 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
412 # / addr_bit will be set from it.
414 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
415 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
417 # ptr_bit is the size of a pointer on the target
418 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
419 # addr_bit is the size of a target address as represented in gdb
420 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
421 # Number of bits in a BFD_VMA for the target object file format.
422 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
424 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
425 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
427 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
428 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
429 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
430 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
431 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
432 # Function for getting target's idea of a frame pointer. FIXME: GDB's
433 # whole scheme for dealing with "frames" and "frame pointers" needs a
435 f::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
437 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf:
438 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf:
440 v:2:NUM_REGS:int:num_regs::::0:-1
441 # This macro gives the number of pseudo-registers that live in the
442 # register namespace but do not get fetched or stored on the target.
443 # These pseudo-registers may be aliases for other registers,
444 # combinations of other registers, or they may be computed by GDB.
445 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
447 # GDB's standard (or well known) register numbers. These can map onto
448 # a real register or a pseudo (computed) register or not be defined at
450 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
451 v:2:FP_REGNUM:int:fp_regnum::::-1:-1::0
452 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
453 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
454 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
455 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
456 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
457 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
458 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
459 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
460 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
461 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
462 # Convert from an sdb register number to an internal gdb register number.
463 # This should be defined in tm.h, if REGISTER_NAMES is not set up
464 # to map one to one onto the sdb register numbers.
465 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
466 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
467 f:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
468 v:2:REGISTER_SIZE:int:register_size::::0:-1
469 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
470 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte::0
471 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
472 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
473 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
474 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
475 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
477 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
478 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
479 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
480 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
481 # MAP a GDB RAW register number onto a simulator register number. See
482 # also include/...-sim.h.
483 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
484 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
485 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
486 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
487 # setjmp/longjmp support.
488 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
490 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
491 # much better but at least they are vaguely consistent). The headers
492 # and body contain convoluted #if/#else sequences for determine how
493 # things should be compiled. Instead of trying to mimic that
494 # behaviour here (and hence entrench it further) gdbarch simply
495 # reqires that these methods be set up from the word go. This also
496 # avoids any potential problems with moving beyond multi-arch partial.
497 v:1:DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
498 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
499 f:2:CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void:::0:0::gdbarch->call_dummy_location == AT_ENTRY_POINT && gdbarch->call_dummy_address == 0
500 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
501 v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::gdbarch->call_dummy_breakpoint_offset_p && gdbarch->call_dummy_breakpoint_offset == -1:0x%08lx::CALL_DUMMY_BREAKPOINT_OFFSET_P
502 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
503 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
504 # NOTE: cagney/2002-11-24: This function with predicate has a valid
505 # (callable) initial value. As a consequence, even when the predicate
506 # is false, the corresponding function works. This simplifies the
507 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
508 # doesn't need to be modified.
509 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
510 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
511 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
512 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
513 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
514 v:2:CALL_DUMMY_STACK_ADJUST:int:call_dummy_stack_adjust::::0:::gdbarch->call_dummy_stack_adjust_p && gdbarch->call_dummy_stack_adjust == 0:0x%08lx::CALL_DUMMY_STACK_ADJUST_P
515 f:2: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:::0
516 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
517 F::DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
519 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
520 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
521 F:2:GET_SAVED_REGISTER:void: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
523 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
524 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
525 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
527 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
528 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
529 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
531 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
532 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
533 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
535 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
536 f:2:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr:::default_push_arguments::0
537 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
538 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
539 f:2:POP_FRAME:void:pop_frame:void:-:::0
541 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
543 f::EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
544 f::STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
545 f::DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
546 f::DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
548 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
549 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
550 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
552 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
553 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
555 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
556 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
557 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
558 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
559 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
560 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
561 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
562 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
563 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
565 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
567 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
568 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
569 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
570 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
571 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
572 # given frame is the outermost one and has no caller.
574 # XXXX - both default and alternate frame_chain_valid functions are
575 # deprecated. New code should use dummy frames and one of the generic
577 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::generic_func_frame_chain_valid::0
578 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
579 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:get_frame_base::0
580 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:get_frame_base::0
581 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
582 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
584 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
585 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
586 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
587 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
588 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
589 v:2:PARM_BOUNDARY:int:parm_boundary
591 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
592 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
593 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
594 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
595 # On some machines there are bits in addresses which are not really
596 # part of the address, but are used by the kernel, the hardware, etc.
597 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
598 # we get a "real" address such as one would find in a symbol table.
599 # This is used only for addresses of instructions, and even then I'm
600 # not sure it's used in all contexts. It exists to deal with there
601 # being a few stray bits in the PC which would mislead us, not as some
602 # sort of generic thing to handle alignment or segmentation (it's
603 # possible it should be in TARGET_READ_PC instead).
604 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
605 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
607 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
608 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
609 # the target needs software single step. An ISA method to implement it.
611 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
612 # using the breakpoint system instead of blatting memory directly (as with rs6000).
614 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
615 # single step. If not, then implement single step using breakpoints.
616 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
617 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
618 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
621 # For SVR4 shared libraries, each call goes through a small piece of
622 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
623 # to nonzero if we are currently stopped in one of these.
624 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
626 # Some systems also have trampoline code for returning from shared libs.
627 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
629 # Sigtramp is a routine that the kernel calls (which then calls the
630 # signal handler). On most machines it is a library routine that is
631 # linked into the executable.
633 # This macro, given a program counter value and the name of the
634 # function in which that PC resides (which can be null if the name is
635 # not known), returns nonzero if the PC and name show that we are in
638 # On most machines just see if the name is sigtramp (and if we have
639 # no name, assume we are not in sigtramp).
641 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
642 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
643 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
644 # own local NAME lookup.
646 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
647 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
649 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
650 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
651 F::SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
652 # A target might have problems with watchpoints as soon as the stack
653 # frame of the current function has been destroyed. This mostly happens
654 # as the first action in a funtion's epilogue. in_function_epilogue_p()
655 # is defined to return a non-zero value if either the given addr is one
656 # instruction after the stack destroying instruction up to the trailing
657 # return instruction or if we can figure out that the stack frame has
658 # already been invalidated regardless of the value of addr. Targets
659 # which don't suffer from that problem could just let this functionality
661 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
662 # Given a vector of command-line arguments, return a newly allocated
663 # string which, when passed to the create_inferior function, will be
664 # parsed (on Unix systems, by the shell) to yield the same vector.
665 # This function should call error() if the argument vector is not
666 # representable for this target or if this target does not support
667 # command-line arguments.
668 # ARGC is the number of elements in the vector.
669 # ARGV is an array of strings, one per argument.
670 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
671 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
672 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
673 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
674 v::NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
675 v::CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
676 v::HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
677 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
678 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags:
679 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
680 # Is a register in a group
681 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
688 exec > new-gdbarch.log
689 function_list |
while do_read
692 ${class} ${macro}(${actual})
693 ${returntype} ${function} ($formal)${attrib}
697 eval echo \"\ \ \ \
${r}=\
${${r}}\"
699 if class_is_predicate_p
&& fallback_default_p
701 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
705 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
707 echo "Error: postdefault is useless when invalid_p=0" 1>&2
711 if class_is_multiarch_p
713 if class_is_predicate_p
; then :
714 elif test "x${predefault}" = "x"
716 echo "Error: pure multi-arch function must have a predefault" 1>&2
725 compare_new gdbarch.log
731 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
733 /* Dynamic architecture support for GDB, the GNU debugger.
734 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
736 This file is part of GDB.
738 This program is free software; you can redistribute it and/or modify
739 it under the terms of the GNU General Public License as published by
740 the Free Software Foundation; either version 2 of the License, or
741 (at your option) any later version.
743 This program is distributed in the hope that it will be useful,
744 but WITHOUT ANY WARRANTY; without even the implied warranty of
745 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
746 GNU General Public License for more details.
748 You should have received a copy of the GNU General Public License
749 along with this program; if not, write to the Free Software
750 Foundation, Inc., 59 Temple Place - Suite 330,
751 Boston, MA 02111-1307, USA. */
753 /* This file was created with the aid of \`\`gdbarch.sh''.
755 The Bourne shell script \`\`gdbarch.sh'' creates the files
756 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
757 against the existing \`\`gdbarch.[hc]''. Any differences found
760 If editing this file, please also run gdbarch.sh and merge any
761 changes into that script. Conversely, when making sweeping changes
762 to this file, modifying gdbarch.sh and using its output may prove
778 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
780 /* Pull in function declarations refered to, indirectly, via macros. */
781 #include "inferior.h" /* For unsigned_address_to_pointer(). */
787 struct minimal_symbol;
791 extern struct gdbarch *current_gdbarch;
794 /* If any of the following are defined, the target wasn't correctly
798 #if defined (EXTRA_FRAME_INFO)
799 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
804 #if defined (FRAME_FIND_SAVED_REGS)
805 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
809 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
810 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
817 printf "/* The following are pre-initialized by GDBARCH. */\n"
818 function_list |
while do_read
823 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
824 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
825 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
826 printf "#error \"Non multi-arch definition of ${macro}\"\n"
828 printf "#if GDB_MULTI_ARCH\n"
829 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
830 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
839 printf "/* The following are initialized by the target dependent code. */\n"
840 function_list |
while do_read
842 if [ -n "${comment}" ]
844 echo "${comment}" |
sed \
849 if class_is_multiarch_p
851 if class_is_predicate_p
854 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
857 if class_is_predicate_p
860 printf "#if defined (${macro})\n"
861 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
862 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
863 printf "#if !defined (${macro}_P)\n"
864 printf "#define ${macro}_P() (1)\n"
868 printf "/* Default predicate for non- multi-arch targets. */\n"
869 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
870 printf "#define ${macro}_P() (0)\n"
873 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
874 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
875 printf "#error \"Non multi-arch definition of ${macro}\"\n"
877 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
878 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
882 if class_is_variable_p
884 if fallback_default_p || class_is_predicate_p
887 printf "/* Default (value) for non- multi-arch platforms. */\n"
888 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
889 echo "#define ${macro} (${fallbackdefault})" \
890 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
894 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
895 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
896 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
897 printf "#error \"Non multi-arch definition of ${macro}\"\n"
899 printf "#if GDB_MULTI_ARCH\n"
900 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
901 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
905 if class_is_function_p
907 if class_is_multiarch_p
; then :
908 elif fallback_default_p || class_is_predicate_p
911 printf "/* Default (function) for non- multi-arch platforms. */\n"
912 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
913 if [ "x${fallbackdefault}" = "x0" ]
915 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
917 # FIXME: Should be passing current_gdbarch through!
918 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
919 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
924 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
926 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
927 elif class_is_multiarch_p
929 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
931 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
933 if [ "x${formal}" = "xvoid" ]
935 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
937 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
939 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
940 if class_is_multiarch_p
; then :
942 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
943 printf "#error \"Non multi-arch definition of ${macro}\"\n"
945 printf "#if GDB_MULTI_ARCH\n"
946 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
947 if [ "x${actual}" = "x" ]
949 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
950 elif [ "x${actual}" = "x-" ]
952 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
954 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
965 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
968 /* Mechanism for co-ordinating the selection of a specific
971 GDB targets (*-tdep.c) can register an interest in a specific
972 architecture. Other GDB components can register a need to maintain
973 per-architecture data.
975 The mechanisms below ensures that there is only a loose connection
976 between the set-architecture command and the various GDB
977 components. Each component can independently register their need
978 to maintain architecture specific data with gdbarch.
982 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
985 The more traditional mega-struct containing architecture specific
986 data for all the various GDB components was also considered. Since
987 GDB is built from a variable number of (fairly independent)
988 components it was determined that the global aproach was not
992 /* Register a new architectural family with GDB.
994 Register support for the specified ARCHITECTURE with GDB. When
995 gdbarch determines that the specified architecture has been
996 selected, the corresponding INIT function is called.
1000 The INIT function takes two parameters: INFO which contains the
1001 information available to gdbarch about the (possibly new)
1002 architecture; ARCHES which is a list of the previously created
1003 \`\`struct gdbarch'' for this architecture.
1005 The INFO parameter is, as far as possible, be pre-initialized with
1006 information obtained from INFO.ABFD or the previously selected
1009 The ARCHES parameter is a linked list (sorted most recently used)
1010 of all the previously created architures for this architecture
1011 family. The (possibly NULL) ARCHES->gdbarch can used to access
1012 values from the previously selected architecture for this
1013 architecture family. The global \`\`current_gdbarch'' shall not be
1016 The INIT function shall return any of: NULL - indicating that it
1017 doesn't recognize the selected architecture; an existing \`\`struct
1018 gdbarch'' from the ARCHES list - indicating that the new
1019 architecture is just a synonym for an earlier architecture (see
1020 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1021 - that describes the selected architecture (see gdbarch_alloc()).
1023 The DUMP_TDEP function shall print out all target specific values.
1024 Care should be taken to ensure that the function works in both the
1025 multi-arch and non- multi-arch cases. */
1029 struct gdbarch *gdbarch;
1030 struct gdbarch_list *next;
1035 /* Use default: NULL (ZERO). */
1036 const struct bfd_arch_info *bfd_arch_info;
1038 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1041 /* Use default: NULL (ZERO). */
1044 /* Use default: NULL (ZERO). */
1045 struct gdbarch_tdep_info *tdep_info;
1048 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1049 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1051 /* DEPRECATED - use gdbarch_register() */
1052 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1054 extern void gdbarch_register (enum bfd_architecture architecture,
1055 gdbarch_init_ftype *,
1056 gdbarch_dump_tdep_ftype *);
1059 /* Return a freshly allocated, NULL terminated, array of the valid
1060 architecture names. Since architectures are registered during the
1061 _initialize phase this function only returns useful information
1062 once initialization has been completed. */
1064 extern const char **gdbarch_printable_names (void);
1067 /* Helper function. Search the list of ARCHES for a GDBARCH that
1068 matches the information provided by INFO. */
1070 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1073 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1074 basic initialization using values obtained from the INFO andTDEP
1075 parameters. set_gdbarch_*() functions are called to complete the
1076 initialization of the object. */
1078 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1081 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1082 It is assumed that the caller freeds the \`\`struct
1085 extern void gdbarch_free (struct gdbarch *);
1088 /* Helper function. Force an update of the current architecture.
1090 The actual architecture selected is determined by INFO, \`\`(gdb) set
1091 architecture'' et.al., the existing architecture and BFD's default
1092 architecture. INFO should be initialized to zero and then selected
1093 fields should be updated.
1095 Returns non-zero if the update succeeds */
1097 extern int gdbarch_update_p (struct gdbarch_info info);
1101 /* Register per-architecture data-pointer.
1103 Reserve space for a per-architecture data-pointer. An identifier
1104 for the reserved data-pointer is returned. That identifer should
1105 be saved in a local static variable.
1107 The per-architecture data-pointer is either initialized explicitly
1108 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1109 gdbarch_data()). FREE() is called to delete either an existing
1110 data-pointer overridden by set_gdbarch_data() or when the
1111 architecture object is being deleted.
1113 When a previously created architecture is re-selected, the
1114 per-architecture data-pointer for that previous architecture is
1115 restored. INIT() is not re-called.
1117 Multiple registrarants for any architecture are allowed (and
1118 strongly encouraged). */
1120 struct gdbarch_data;
1122 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1123 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1125 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1126 gdbarch_data_free_ftype *free);
1127 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1128 struct gdbarch_data *data,
1131 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1134 /* Register per-architecture memory region.
1136 Provide a memory-region swap mechanism. Per-architecture memory
1137 region are created. These memory regions are swapped whenever the
1138 architecture is changed. For a new architecture, the memory region
1139 is initialized with zero (0) and the INIT function is called.
1141 Memory regions are swapped / initialized in the order that they are
1142 registered. NULL DATA and/or INIT values can be specified.
1144 New code should use register_gdbarch_data(). */
1146 typedef void (gdbarch_swap_ftype) (void);
1147 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1148 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1152 /* The target-system-dependent byte order is dynamic */
1154 extern int target_byte_order;
1155 #ifndef TARGET_BYTE_ORDER
1156 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1159 extern int target_byte_order_auto;
1160 #ifndef TARGET_BYTE_ORDER_AUTO
1161 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1166 /* The target-system-dependent BFD architecture is dynamic */
1168 extern int target_architecture_auto;
1169 #ifndef TARGET_ARCHITECTURE_AUTO
1170 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1173 extern const struct bfd_arch_info *target_architecture;
1174 #ifndef TARGET_ARCHITECTURE
1175 #define TARGET_ARCHITECTURE (target_architecture + 0)
1179 /* The target-system-dependent disassembler is semi-dynamic */
1181 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1182 unsigned int len, disassemble_info *info);
1184 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1185 disassemble_info *info);
1187 extern void dis_asm_print_address (bfd_vma addr,
1188 disassemble_info *info);
1190 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1191 extern disassemble_info tm_print_insn_info;
1192 #ifndef TARGET_PRINT_INSN_INFO
1193 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1198 /* Set the dynamic target-system-dependent parameters (architecture,
1199 byte-order, ...) using information found in the BFD */
1201 extern void set_gdbarch_from_file (bfd *);
1204 /* Initialize the current architecture to the "first" one we find on
1207 extern void initialize_current_architecture (void);
1209 /* For non-multiarched targets, do any initialization of the default
1210 gdbarch object necessary after the _initialize_MODULE functions
1212 extern void initialize_non_multiarch (void);
1214 /* gdbarch trace variable */
1215 extern int gdbarch_debug;
1217 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1222 #../move-if-change new-gdbarch.h gdbarch.h
1223 compare_new gdbarch.h
1230 exec > new-gdbarch.c
1235 #include "arch-utils.h"
1239 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1241 /* Just include everything in sight so that the every old definition
1242 of macro is visible. */
1243 #include "gdb_string.h"
1247 #include "inferior.h"
1248 #include "breakpoint.h"
1249 #include "gdb_wait.h"
1250 #include "gdbcore.h"
1253 #include "gdbthread.h"
1254 #include "annotate.h"
1255 #include "symfile.h" /* for overlay functions */
1256 #include "value.h" /* For old tm.h/nm.h macros. */
1260 #include "floatformat.h"
1262 #include "gdb_assert.h"
1263 #include "gdb_string.h"
1264 #include "gdb-events.h"
1265 #include "reggroups.h"
1267 /* Static function declarations */
1269 static void verify_gdbarch (struct gdbarch *gdbarch);
1270 static void alloc_gdbarch_data (struct gdbarch *);
1271 static void free_gdbarch_data (struct gdbarch *);
1272 static void init_gdbarch_swap (struct gdbarch *);
1273 static void clear_gdbarch_swap (struct gdbarch *);
1274 static void swapout_gdbarch_swap (struct gdbarch *);
1275 static void swapin_gdbarch_swap (struct gdbarch *);
1277 /* Non-zero if we want to trace architecture code. */
1279 #ifndef GDBARCH_DEBUG
1280 #define GDBARCH_DEBUG 0
1282 int gdbarch_debug = GDBARCH_DEBUG;
1286 # gdbarch open the gdbarch object
1288 printf "/* Maintain the struct gdbarch object */\n"
1290 printf "struct gdbarch\n"
1292 printf " /* Has this architecture been fully initialized? */\n"
1293 printf " int initialized_p;\n"
1294 printf " /* basic architectural information */\n"
1295 function_list |
while do_read
1299 printf " ${returntype} ${function};\n"
1303 printf " /* target specific vector. */\n"
1304 printf " struct gdbarch_tdep *tdep;\n"
1305 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1307 printf " /* per-architecture data-pointers */\n"
1308 printf " unsigned nr_data;\n"
1309 printf " void **data;\n"
1311 printf " /* per-architecture swap-regions */\n"
1312 printf " struct gdbarch_swap *swap;\n"
1315 /* Multi-arch values.
1317 When extending this structure you must:
1319 Add the field below.
1321 Declare set/get functions and define the corresponding
1324 gdbarch_alloc(): If zero/NULL is not a suitable default,
1325 initialize the new field.
1327 verify_gdbarch(): Confirm that the target updated the field
1330 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1333 \`\`startup_gdbarch()'': Append an initial value to the static
1334 variable (base values on the host's c-type system).
1336 get_gdbarch(): Implement the set/get functions (probably using
1337 the macro's as shortcuts).
1342 function_list |
while do_read
1344 if class_is_variable_p
1346 printf " ${returntype} ${function};\n"
1347 elif class_is_function_p
1349 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1354 # A pre-initialized vector
1358 /* The default architecture uses host values (for want of a better
1362 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1364 printf "struct gdbarch startup_gdbarch =\n"
1366 printf " 1, /* Always initialized. */\n"
1367 printf " /* basic architecture information */\n"
1368 function_list |
while do_read
1372 printf " ${staticdefault},\n"
1376 /* target specific vector and its dump routine */
1378 /*per-architecture data-pointers and swap regions */
1380 /* Multi-arch values */
1382 function_list |
while do_read
1384 if class_is_function_p || class_is_variable_p
1386 printf " ${staticdefault},\n"
1390 /* startup_gdbarch() */
1393 struct gdbarch *current_gdbarch = &startup_gdbarch;
1395 /* Do any initialization needed for a non-multiarch configuration
1396 after the _initialize_MODULE functions have been run. */
1398 initialize_non_multiarch (void)
1400 alloc_gdbarch_data (&startup_gdbarch);
1401 /* Ensure that all swap areas are zeroed so that they again think
1402 they are starting from scratch. */
1403 clear_gdbarch_swap (&startup_gdbarch);
1404 init_gdbarch_swap (&startup_gdbarch);
1408 # Create a new gdbarch struct
1412 /* Create a new \`\`struct gdbarch'' based on information provided by
1413 \`\`struct gdbarch_info''. */
1418 gdbarch_alloc (const struct gdbarch_info *info,
1419 struct gdbarch_tdep *tdep)
1421 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1422 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1423 the current local architecture and not the previous global
1424 architecture. This ensures that the new architectures initial
1425 values are not influenced by the previous architecture. Once
1426 everything is parameterised with gdbarch, this will go away. */
1427 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1428 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1430 alloc_gdbarch_data (current_gdbarch);
1432 current_gdbarch->tdep = tdep;
1435 function_list |
while do_read
1439 printf " current_gdbarch->${function} = info->${function};\n"
1443 printf " /* Force the explicit initialization of these. */\n"
1444 function_list |
while do_read
1446 if class_is_function_p || class_is_variable_p
1448 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1450 printf " current_gdbarch->${function} = ${predefault};\n"
1455 /* gdbarch_alloc() */
1457 return current_gdbarch;
1461 # Free a gdbarch struct.
1465 /* Free a gdbarch struct. This should never happen in normal
1466 operation --- once you've created a gdbarch, you keep it around.
1467 However, if an architecture's init function encounters an error
1468 building the structure, it may need to clean up a partially
1469 constructed gdbarch. */
1472 gdbarch_free (struct gdbarch *arch)
1474 gdb_assert (arch != NULL);
1475 free_gdbarch_data (arch);
1480 # verify a new architecture
1483 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1487 verify_gdbarch (struct gdbarch *gdbarch)
1489 struct ui_file *log;
1490 struct cleanup *cleanups;
1493 /* Only perform sanity checks on a multi-arch target. */
1494 if (!GDB_MULTI_ARCH)
1496 log = mem_fileopen ();
1497 cleanups = make_cleanup_ui_file_delete (log);
1499 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1500 fprintf_unfiltered (log, "\n\tbyte-order");
1501 if (gdbarch->bfd_arch_info == NULL)
1502 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1503 /* Check those that need to be defined for the given multi-arch level. */
1505 function_list |
while do_read
1507 if class_is_function_p || class_is_variable_p
1509 if [ "x${invalid_p}" = "x0" ]
1511 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1512 elif class_is_predicate_p
1514 printf " /* Skip verify of ${function}, has predicate */\n"
1515 # FIXME: See do_read for potential simplification
1516 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1518 printf " if (${invalid_p})\n"
1519 printf " gdbarch->${function} = ${postdefault};\n"
1520 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1522 printf " if (gdbarch->${function} == ${predefault})\n"
1523 printf " gdbarch->${function} = ${postdefault};\n"
1524 elif [ -n "${postdefault}" ]
1526 printf " if (gdbarch->${function} == 0)\n"
1527 printf " gdbarch->${function} = ${postdefault};\n"
1528 elif [ -n "${invalid_p}" ]
1530 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1531 printf " && (${invalid_p}))\n"
1532 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1533 elif [ -n "${predefault}" ]
1535 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1536 printf " && (gdbarch->${function} == ${predefault}))\n"
1537 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1542 buf = ui_file_xstrdup (log, &dummy);
1543 make_cleanup (xfree, buf);
1544 if (strlen (buf) > 0)
1545 internal_error (__FILE__, __LINE__,
1546 "verify_gdbarch: the following are invalid ...%s",
1548 do_cleanups (cleanups);
1552 # dump the structure
1556 /* Print out the details of the current architecture. */
1558 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1559 just happens to match the global variable \`\`current_gdbarch''. That
1560 way macros refering to that variable get the local and not the global
1561 version - ulgh. Once everything is parameterised with gdbarch, this
1565 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1567 fprintf_unfiltered (file,
1568 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1571 function_list |
sort -t: -k 3 |
while do_read
1573 # First the predicate
1574 if class_is_predicate_p
1576 if class_is_multiarch_p
1578 printf " if (GDB_MULTI_ARCH)\n"
1579 printf " fprintf_unfiltered (file,\n"
1580 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1581 printf " gdbarch_${function}_p (current_gdbarch));\n"
1583 printf "#ifdef ${macro}_P\n"
1584 printf " fprintf_unfiltered (file,\n"
1585 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1586 printf " \"${macro}_P()\",\n"
1587 printf " XSTRING (${macro}_P ()));\n"
1588 printf " fprintf_unfiltered (file,\n"
1589 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1590 printf " ${macro}_P ());\n"
1594 # multiarch functions don't have macros.
1595 if class_is_multiarch_p
1597 printf " if (GDB_MULTI_ARCH)\n"
1598 printf " fprintf_unfiltered (file,\n"
1599 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1600 printf " (long) current_gdbarch->${function});\n"
1603 # Print the macro definition.
1604 printf "#ifdef ${macro}\n"
1605 if [ "x${returntype}" = "xvoid" ]
1607 printf "#if GDB_MULTI_ARCH\n"
1608 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1610 if class_is_function_p
1612 printf " fprintf_unfiltered (file,\n"
1613 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1614 printf " \"${macro}(${actual})\",\n"
1615 printf " XSTRING (${macro} (${actual})));\n"
1617 printf " fprintf_unfiltered (file,\n"
1618 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1619 printf " XSTRING (${macro}));\n"
1621 # Print the architecture vector value
1622 if [ "x${returntype}" = "xvoid" ]
1626 if [ "x${print_p}" = "x()" ]
1628 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1629 elif [ "x${print_p}" = "x0" ]
1631 printf " /* skip print of ${macro}, print_p == 0. */\n"
1632 elif [ -n "${print_p}" ]
1634 printf " if (${print_p})\n"
1635 printf " fprintf_unfiltered (file,\n"
1636 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1637 printf " ${print});\n"
1638 elif class_is_function_p
1640 printf " if (GDB_MULTI_ARCH)\n"
1641 printf " fprintf_unfiltered (file,\n"
1642 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1643 printf " (long) current_gdbarch->${function}\n"
1644 printf " /*${macro} ()*/);\n"
1646 printf " fprintf_unfiltered (file,\n"
1647 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1648 printf " ${print});\n"
1653 if (current_gdbarch->dump_tdep != NULL)
1654 current_gdbarch->dump_tdep (current_gdbarch, file);
1662 struct gdbarch_tdep *
1663 gdbarch_tdep (struct gdbarch *gdbarch)
1665 if (gdbarch_debug >= 2)
1666 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1667 return gdbarch->tdep;
1671 function_list |
while do_read
1673 if class_is_predicate_p
1677 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1679 printf " gdb_assert (gdbarch != NULL);\n"
1680 if [ -n "${predicate}" ]
1682 printf " return ${predicate};\n"
1684 printf " return gdbarch->${function} != 0;\n"
1688 if class_is_function_p
1691 printf "${returntype}\n"
1692 if [ "x${formal}" = "xvoid" ]
1694 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1696 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1699 printf " gdb_assert (gdbarch != NULL);\n"
1700 printf " if (gdbarch->${function} == 0)\n"
1701 printf " internal_error (__FILE__, __LINE__,\n"
1702 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1703 if class_is_predicate_p
&& test -n "${predicate}"
1705 # Allow a call to a function with a predicate.
1706 printf " /* Ignore predicate (${predicate}). */\n"
1708 printf " if (gdbarch_debug >= 2)\n"
1709 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1710 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1712 if class_is_multiarch_p
1719 if class_is_multiarch_p
1721 params
="gdbarch, ${actual}"
1726 if [ "x${returntype}" = "xvoid" ]
1728 printf " gdbarch->${function} (${params});\n"
1730 printf " return gdbarch->${function} (${params});\n"
1735 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1736 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1738 printf " gdbarch->${function} = ${function};\n"
1740 elif class_is_variable_p
1743 printf "${returntype}\n"
1744 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1746 printf " gdb_assert (gdbarch != NULL);\n"
1747 if [ "x${invalid_p}" = "x0" ]
1749 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1750 elif [ -n "${invalid_p}" ]
1752 printf " if (${invalid_p})\n"
1753 printf " internal_error (__FILE__, __LINE__,\n"
1754 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1755 elif [ -n "${predefault}" ]
1757 printf " if (gdbarch->${function} == ${predefault})\n"
1758 printf " internal_error (__FILE__, __LINE__,\n"
1759 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1761 printf " if (gdbarch_debug >= 2)\n"
1762 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1763 printf " return gdbarch->${function};\n"
1767 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1768 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1770 printf " gdbarch->${function} = ${function};\n"
1772 elif class_is_info_p
1775 printf "${returntype}\n"
1776 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1778 printf " gdb_assert (gdbarch != NULL);\n"
1779 printf " if (gdbarch_debug >= 2)\n"
1780 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1781 printf " return gdbarch->${function};\n"
1786 # All the trailing guff
1790 /* Keep a registry of per-architecture data-pointers required by GDB
1797 gdbarch_data_init_ftype *init;
1798 gdbarch_data_free_ftype *free;
1801 struct gdbarch_data_registration
1803 struct gdbarch_data *data;
1804 struct gdbarch_data_registration *next;
1807 struct gdbarch_data_registry
1810 struct gdbarch_data_registration *registrations;
1813 struct gdbarch_data_registry gdbarch_data_registry =
1818 struct gdbarch_data *
1819 register_gdbarch_data (gdbarch_data_init_ftype *init,
1820 gdbarch_data_free_ftype *free)
1822 struct gdbarch_data_registration **curr;
1823 /* Append the new registraration. */
1824 for (curr = &gdbarch_data_registry.registrations;
1826 curr = &(*curr)->next);
1827 (*curr) = XMALLOC (struct gdbarch_data_registration);
1828 (*curr)->next = NULL;
1829 (*curr)->data = XMALLOC (struct gdbarch_data);
1830 (*curr)->data->index = gdbarch_data_registry.nr++;
1831 (*curr)->data->init = init;
1832 (*curr)->data->init_p = 1;
1833 (*curr)->data->free = free;
1834 return (*curr)->data;
1838 /* Create/delete the gdbarch data vector. */
1841 alloc_gdbarch_data (struct gdbarch *gdbarch)
1843 gdb_assert (gdbarch->data == NULL);
1844 gdbarch->nr_data = gdbarch_data_registry.nr;
1845 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1849 free_gdbarch_data (struct gdbarch *gdbarch)
1851 struct gdbarch_data_registration *rego;
1852 gdb_assert (gdbarch->data != NULL);
1853 for (rego = gdbarch_data_registry.registrations;
1857 struct gdbarch_data *data = rego->data;
1858 gdb_assert (data->index < gdbarch->nr_data);
1859 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1861 data->free (gdbarch, gdbarch->data[data->index]);
1862 gdbarch->data[data->index] = NULL;
1865 xfree (gdbarch->data);
1866 gdbarch->data = NULL;
1870 /* Initialize the current value of the specified per-architecture
1874 set_gdbarch_data (struct gdbarch *gdbarch,
1875 struct gdbarch_data *data,
1878 gdb_assert (data->index < gdbarch->nr_data);
1879 if (gdbarch->data[data->index] != NULL)
1881 gdb_assert (data->free != NULL);
1882 data->free (gdbarch, gdbarch->data[data->index]);
1884 gdbarch->data[data->index] = pointer;
1887 /* Return the current value of the specified per-architecture
1891 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1893 gdb_assert (data->index < gdbarch->nr_data);
1894 /* The data-pointer isn't initialized, call init() to get a value but
1895 only if the architecture initializaiton has completed. Otherwise
1896 punt - hope that the caller knows what they are doing. */
1897 if (gdbarch->data[data->index] == NULL
1898 && gdbarch->initialized_p)
1900 /* Be careful to detect an initialization cycle. */
1901 gdb_assert (data->init_p);
1903 gdb_assert (data->init != NULL);
1904 gdbarch->data[data->index] = data->init (gdbarch);
1906 gdb_assert (gdbarch->data[data->index] != NULL);
1908 return gdbarch->data[data->index];
1913 /* Keep a registry of swapped data required by GDB modules. */
1918 struct gdbarch_swap_registration *source;
1919 struct gdbarch_swap *next;
1922 struct gdbarch_swap_registration
1925 unsigned long sizeof_data;
1926 gdbarch_swap_ftype *init;
1927 struct gdbarch_swap_registration *next;
1930 struct gdbarch_swap_registry
1933 struct gdbarch_swap_registration *registrations;
1936 struct gdbarch_swap_registry gdbarch_swap_registry =
1942 register_gdbarch_swap (void *data,
1943 unsigned long sizeof_data,
1944 gdbarch_swap_ftype *init)
1946 struct gdbarch_swap_registration **rego;
1947 for (rego = &gdbarch_swap_registry.registrations;
1949 rego = &(*rego)->next);
1950 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1951 (*rego)->next = NULL;
1952 (*rego)->init = init;
1953 (*rego)->data = data;
1954 (*rego)->sizeof_data = sizeof_data;
1958 clear_gdbarch_swap (struct gdbarch *gdbarch)
1960 struct gdbarch_swap *curr;
1961 for (curr = gdbarch->swap;
1965 memset (curr->source->data, 0, curr->source->sizeof_data);
1970 init_gdbarch_swap (struct gdbarch *gdbarch)
1972 struct gdbarch_swap_registration *rego;
1973 struct gdbarch_swap **curr = &gdbarch->swap;
1974 for (rego = gdbarch_swap_registry.registrations;
1978 if (rego->data != NULL)
1980 (*curr) = XMALLOC (struct gdbarch_swap);
1981 (*curr)->source = rego;
1982 (*curr)->swap = xmalloc (rego->sizeof_data);
1983 (*curr)->next = NULL;
1984 curr = &(*curr)->next;
1986 if (rego->init != NULL)
1992 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1994 struct gdbarch_swap *curr;
1995 for (curr = gdbarch->swap;
1998 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
2002 swapin_gdbarch_swap (struct gdbarch *gdbarch)
2004 struct gdbarch_swap *curr;
2005 for (curr = gdbarch->swap;
2008 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2012 /* Keep a registry of the architectures known by GDB. */
2014 struct gdbarch_registration
2016 enum bfd_architecture bfd_architecture;
2017 gdbarch_init_ftype *init;
2018 gdbarch_dump_tdep_ftype *dump_tdep;
2019 struct gdbarch_list *arches;
2020 struct gdbarch_registration *next;
2023 static struct gdbarch_registration *gdbarch_registry = NULL;
2026 append_name (const char ***buf, int *nr, const char *name)
2028 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2034 gdbarch_printable_names (void)
2038 /* Accumulate a list of names based on the registed list of
2040 enum bfd_architecture a;
2042 const char **arches = NULL;
2043 struct gdbarch_registration *rego;
2044 for (rego = gdbarch_registry;
2048 const struct bfd_arch_info *ap;
2049 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2051 internal_error (__FILE__, __LINE__,
2052 "gdbarch_architecture_names: multi-arch unknown");
2055 append_name (&arches, &nr_arches, ap->printable_name);
2060 append_name (&arches, &nr_arches, NULL);
2064 /* Just return all the architectures that BFD knows. Assume that
2065 the legacy architecture framework supports them. */
2066 return bfd_arch_list ();
2071 gdbarch_register (enum bfd_architecture bfd_architecture,
2072 gdbarch_init_ftype *init,
2073 gdbarch_dump_tdep_ftype *dump_tdep)
2075 struct gdbarch_registration **curr;
2076 const struct bfd_arch_info *bfd_arch_info;
2077 /* Check that BFD recognizes this architecture */
2078 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2079 if (bfd_arch_info == NULL)
2081 internal_error (__FILE__, __LINE__,
2082 "gdbarch: Attempt to register unknown architecture (%d)",
2085 /* Check that we haven't seen this architecture before */
2086 for (curr = &gdbarch_registry;
2088 curr = &(*curr)->next)
2090 if (bfd_architecture == (*curr)->bfd_architecture)
2091 internal_error (__FILE__, __LINE__,
2092 "gdbarch: Duplicate registraration of architecture (%s)",
2093 bfd_arch_info->printable_name);
2097 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2098 bfd_arch_info->printable_name,
2101 (*curr) = XMALLOC (struct gdbarch_registration);
2102 (*curr)->bfd_architecture = bfd_architecture;
2103 (*curr)->init = init;
2104 (*curr)->dump_tdep = dump_tdep;
2105 (*curr)->arches = NULL;
2106 (*curr)->next = NULL;
2107 /* When non- multi-arch, install whatever target dump routine we've
2108 been provided - hopefully that routine has been written correctly
2109 and works regardless of multi-arch. */
2110 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2111 && startup_gdbarch.dump_tdep == NULL)
2112 startup_gdbarch.dump_tdep = dump_tdep;
2116 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2117 gdbarch_init_ftype *init)
2119 gdbarch_register (bfd_architecture, init, NULL);
2123 /* Look for an architecture using gdbarch_info. Base search on only
2124 BFD_ARCH_INFO and BYTE_ORDER. */
2126 struct gdbarch_list *
2127 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2128 const struct gdbarch_info *info)
2130 for (; arches != NULL; arches = arches->next)
2132 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2134 if (info->byte_order != arches->gdbarch->byte_order)
2142 /* Update the current architecture. Return ZERO if the update request
2146 gdbarch_update_p (struct gdbarch_info info)
2148 struct gdbarch *new_gdbarch;
2149 struct gdbarch *old_gdbarch;
2150 struct gdbarch_registration *rego;
2152 /* Fill in missing parts of the INFO struct using a number of
2153 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2155 /* \`\`(gdb) set architecture ...'' */
2156 if (info.bfd_arch_info == NULL
2157 && !TARGET_ARCHITECTURE_AUTO)
2158 info.bfd_arch_info = TARGET_ARCHITECTURE;
2159 if (info.bfd_arch_info == NULL
2160 && info.abfd != NULL
2161 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2162 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2163 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2164 if (info.bfd_arch_info == NULL)
2165 info.bfd_arch_info = TARGET_ARCHITECTURE;
2167 /* \`\`(gdb) set byte-order ...'' */
2168 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2169 && !TARGET_BYTE_ORDER_AUTO)
2170 info.byte_order = TARGET_BYTE_ORDER;
2171 /* From the INFO struct. */
2172 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2173 && info.abfd != NULL)
2174 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2175 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2176 : BFD_ENDIAN_UNKNOWN);
2177 /* From the current target. */
2178 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2179 info.byte_order = TARGET_BYTE_ORDER;
2181 /* Must have found some sort of architecture. */
2182 gdb_assert (info.bfd_arch_info != NULL);
2186 fprintf_unfiltered (gdb_stdlog,
2187 "gdbarch_update: info.bfd_arch_info %s\n",
2188 (info.bfd_arch_info != NULL
2189 ? info.bfd_arch_info->printable_name
2191 fprintf_unfiltered (gdb_stdlog,
2192 "gdbarch_update: info.byte_order %d (%s)\n",
2194 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2195 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2197 fprintf_unfiltered (gdb_stdlog,
2198 "gdbarch_update: info.abfd 0x%lx\n",
2200 fprintf_unfiltered (gdb_stdlog,
2201 "gdbarch_update: info.tdep_info 0x%lx\n",
2202 (long) info.tdep_info);
2205 /* Find the target that knows about this architecture. */
2206 for (rego = gdbarch_registry;
2209 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2214 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2218 /* Swap the data belonging to the old target out setting the
2219 installed data to zero. This stops the ->init() function trying
2220 to refer to the previous architecture's global data structures. */
2221 swapout_gdbarch_swap (current_gdbarch);
2222 clear_gdbarch_swap (current_gdbarch);
2224 /* Save the previously selected architecture, setting the global to
2225 NULL. This stops ->init() trying to use the previous
2226 architecture's configuration. The previous architecture may not
2227 even be of the same architecture family. The most recent
2228 architecture of the same family is found at the head of the
2229 rego->arches list. */
2230 old_gdbarch = current_gdbarch;
2231 current_gdbarch = NULL;
2233 /* Ask the target for a replacement architecture. */
2234 new_gdbarch = rego->init (info, rego->arches);
2236 /* Did the target like it? No. Reject the change and revert to the
2237 old architecture. */
2238 if (new_gdbarch == NULL)
2241 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2242 swapin_gdbarch_swap (old_gdbarch);
2243 current_gdbarch = old_gdbarch;
2247 /* Did the architecture change? No. Oops, put the old architecture
2249 if (old_gdbarch == new_gdbarch)
2252 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2254 new_gdbarch->bfd_arch_info->printable_name);
2255 swapin_gdbarch_swap (old_gdbarch);
2256 current_gdbarch = old_gdbarch;
2260 /* Is this a pre-existing architecture? Yes. Move it to the front
2261 of the list of architectures (keeping the list sorted Most
2262 Recently Used) and then copy it in. */
2264 struct gdbarch_list **list;
2265 for (list = ®o->arches;
2267 list = &(*list)->next)
2269 if ((*list)->gdbarch == new_gdbarch)
2271 struct gdbarch_list *this;
2273 fprintf_unfiltered (gdb_stdlog,
2274 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2276 new_gdbarch->bfd_arch_info->printable_name);
2279 (*list) = this->next;
2280 /* Insert in the front. */
2281 this->next = rego->arches;
2282 rego->arches = this;
2283 /* Copy the new architecture in. */
2284 current_gdbarch = new_gdbarch;
2285 swapin_gdbarch_swap (new_gdbarch);
2286 architecture_changed_event ();
2292 /* Prepend this new architecture to the architecture list (keep the
2293 list sorted Most Recently Used). */
2295 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2296 this->next = rego->arches;
2297 this->gdbarch = new_gdbarch;
2298 rego->arches = this;
2301 /* Switch to this new architecture marking it initialized. */
2302 current_gdbarch = new_gdbarch;
2303 current_gdbarch->initialized_p = 1;
2306 fprintf_unfiltered (gdb_stdlog,
2307 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2309 new_gdbarch->bfd_arch_info->printable_name);
2312 /* Check that the newly installed architecture is valid. Plug in
2313 any post init values. */
2314 new_gdbarch->dump_tdep = rego->dump_tdep;
2315 verify_gdbarch (new_gdbarch);
2317 /* Initialize the per-architecture memory (swap) areas.
2318 CURRENT_GDBARCH must be update before these modules are
2320 init_gdbarch_swap (new_gdbarch);
2322 /* Initialize the per-architecture data. CURRENT_GDBARCH
2323 must be updated before these modules are called. */
2324 architecture_changed_event ();
2327 gdbarch_dump (current_gdbarch, gdb_stdlog);
2335 /* Pointer to the target-dependent disassembly function. */
2336 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2337 disassemble_info tm_print_insn_info;
2340 extern void _initialize_gdbarch (void);
2343 _initialize_gdbarch (void)
2345 struct cmd_list_element *c;
2347 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2348 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2349 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2350 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2351 tm_print_insn_info.print_address_func = dis_asm_print_address;
2353 add_show_from_set (add_set_cmd ("arch",
2356 (char *)&gdbarch_debug,
2357 "Set architecture debugging.\\n\\
2358 When non-zero, architecture debugging is enabled.", &setdebuglist),
2360 c = add_set_cmd ("archdebug",
2363 (char *)&gdbarch_debug,
2364 "Set architecture debugging.\\n\\
2365 When non-zero, architecture debugging is enabled.", &setlist);
2367 deprecate_cmd (c, "set debug arch");
2368 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2374 #../move-if-change new-gdbarch.c gdbarch.c
2375 compare_new gdbarch.c