3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001, 2002 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) ${macro}"
118 case "${invalid_p}" in
121 if [ -n "${predefault}" ]
123 #invalid_p="gdbarch->${function} == ${predefault}"
124 valid_p
="gdbarch->${function} != ${predefault}"
126 #invalid_p="gdbarch->${function} == 0"
127 valid_p
="gdbarch->${function} != 0"
130 * ) valid_p
="!(${invalid_p})"
133 # PREDEFAULT is a valid fallback definition of MEMBER when
134 # multi-arch is not enabled. This ensures that the
135 # default value, when multi-arch is the same as the
136 # default value when not multi-arch. POSTDEFAULT is
137 # always a valid definition of MEMBER as this again
138 # ensures consistency.
140 if [ -n "${postdefault}" ]
142 fallbackdefault
="${postdefault}"
143 elif [ -n "${predefault}" ]
145 fallbackdefault
="${predefault}"
150 #NOT YET: See gdbarch.log for basic verification of
165 fallback_default_p
()
167 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
168 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
171 class_is_variable_p
()
179 class_is_function_p
()
182 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
187 class_is_multiarch_p
()
195 class_is_predicate_p
()
198 *F
* |
*V
* |
*M
* ) true
;;
212 # dump out/verify the doco
222 # F -> function + predicate
223 # hiding a function + predicate to test function validity
226 # V -> variable + predicate
227 # hiding a variable + predicate to test variables validity
229 # hiding something from the ``struct info'' object
230 # m -> multi-arch function
231 # hiding a multi-arch function (parameterised with the architecture)
232 # M -> multi-arch function + predicate
233 # hiding a multi-arch function + predicate to test function validity
237 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
238 # LEVEL is a predicate on checking that a given method is
239 # initialized (using INVALID_P).
243 # The name of the MACRO that this method is to be accessed by.
247 # For functions, the return type; for variables, the data type
251 # For functions, the member function name; for variables, the
252 # variable name. Member function names are always prefixed with
253 # ``gdbarch_'' for name-space purity.
257 # The formal argument list. It is assumed that the formal
258 # argument list includes the actual name of each list element.
259 # A function with no arguments shall have ``void'' as the
260 # formal argument list.
264 # The list of actual arguments. The arguments specified shall
265 # match the FORMAL list given above. Functions with out
266 # arguments leave this blank.
270 # Any GCC attributes that should be attached to the function
271 # declaration. At present this field is unused.
275 # To help with the GDB startup a static gdbarch object is
276 # created. STATICDEFAULT is the value to insert into that
277 # static gdbarch object. Since this a static object only
278 # simple expressions can be used.
280 # If STATICDEFAULT is empty, zero is used.
284 # An initial value to assign to MEMBER of the freshly
285 # malloc()ed gdbarch object. After initialization, the
286 # freshly malloc()ed object is passed to the target
287 # architecture code for further updates.
289 # If PREDEFAULT is empty, zero is used.
291 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
292 # INVALID_P are specified, PREDEFAULT will be used as the
293 # default for the non- multi-arch target.
295 # A zero PREDEFAULT function will force the fallback to call
298 # Variable declarations can refer to ``gdbarch'' which will
299 # contain the current architecture. Care should be taken.
303 # A value to assign to MEMBER of the new gdbarch object should
304 # the target architecture code fail to change the PREDEFAULT
307 # If POSTDEFAULT is empty, no post update is performed.
309 # If both INVALID_P and POSTDEFAULT are non-empty then
310 # INVALID_P will be used to determine if MEMBER should be
311 # changed to POSTDEFAULT.
313 # If a non-empty POSTDEFAULT and a zero INVALID_P are
314 # specified, POSTDEFAULT will be used as the default for the
315 # non- multi-arch target (regardless of the value of
318 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
320 # Variable declarations can refer to ``gdbarch'' which will
321 # contain the current architecture. Care should be taken.
325 # A predicate equation that validates MEMBER. Non-zero is
326 # returned if the code creating the new architecture failed to
327 # initialize MEMBER or the initialized the member is invalid.
328 # If POSTDEFAULT is non-empty then MEMBER will be updated to
329 # that value. If POSTDEFAULT is empty then internal_error()
332 # If INVALID_P is empty, a check that MEMBER is no longer
333 # equal to PREDEFAULT is used.
335 # The expression ``0'' disables the INVALID_P check making
336 # PREDEFAULT a legitimate value.
338 # See also PREDEFAULT and POSTDEFAULT.
342 # printf style format string that can be used to print out the
343 # MEMBER. Sometimes "%s" is useful. For functions, this is
344 # ignored and the function address is printed.
346 # If FMT is empty, ``%ld'' is used.
350 # An optional equation that casts MEMBER to a value suitable
351 # for formatting by FMT.
353 # If PRINT is empty, ``(long)'' is used.
357 # An optional indicator for any predicte to wrap around the
360 # () -> Call a custom function to do the dump.
361 # exp -> Wrap print up in ``if (${print_p}) ...
362 # ``'' -> No predicate
364 # If PRINT_P is empty, ``1'' is always used.
371 echo "Bad field ${field}"
379 # See below (DOCO) for description of each field
381 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
383 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
384 # Number of bits in a char or unsigned char for the target machine.
385 # Just like CHAR_BIT in <limits.h> but describes the target machine.
386 # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
388 # Number of bits in a short or unsigned short for the target machine.
389 v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
390 # Number of bits in an int or unsigned int for the target machine.
391 v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
392 # Number of bits in a long or unsigned long for the target machine.
393 v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
394 # Number of bits in a long long or unsigned long long for the target
396 v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
397 # Number of bits in a float for the target machine.
398 v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
399 # Number of bits in a double for the target machine.
400 v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
401 # Number of bits in a long double for the target machine.
402 v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
403 # For most targets, a pointer on the target and its representation as an
404 # address in GDB have the same size and "look the same". For such a
405 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
406 # / addr_bit will be set from it.
408 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
409 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
411 # ptr_bit is the size of a pointer on the target
412 v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
413 # addr_bit is the size of a target address as represented in gdb
414 v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
415 # Number of bits in a BFD_VMA for the target object file format.
416 v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
418 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
419 v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
421 f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
422 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
423 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
424 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
425 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
426 # Function for getting target's idea of a frame pointer. FIXME: GDB's
427 # whole scheme for dealing with "frames" and "frame pointers" needs a
429 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
431 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf:
432 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf:
434 v:2:NUM_REGS:int:num_regs::::0:-1
435 # This macro gives the number of pseudo-registers that live in the
436 # register namespace but do not get fetched or stored on the target.
437 # These pseudo-registers may be aliases for other registers,
438 # combinations of other registers, or they may be computed by GDB.
439 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
441 # GDB's standard (or well known) register numbers. These can map onto
442 # a real register or a pseudo (computed) register or not be defined at
444 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
445 v:2:FP_REGNUM:int:fp_regnum::::-1:-1::0
446 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
447 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
448 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
449 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
450 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
451 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
452 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
453 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
454 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
455 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
456 # Convert from an sdb register number to an internal gdb register number.
457 # This should be defined in tm.h, if REGISTER_NAMES is not set up
458 # to map one to one onto the sdb register numbers.
459 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
460 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
461 f:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
462 v:2:REGISTER_SIZE:int:register_size::::0:-1
463 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
464 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte::0
465 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
466 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
467 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
468 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
469 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
470 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0
471 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
472 # MAP a GDB RAW register number onto a simulator register number. See
473 # also include/...-sim.h.
474 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
475 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
476 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
477 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
478 # setjmp/longjmp support.
479 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
481 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
482 # much better but at least they are vaguely consistent). The headers
483 # and body contain convoluted #if/#else sequences for determine how
484 # things should be compiled. Instead of trying to mimic that
485 # behaviour here (and hence entrench it further) gdbarch simply
486 # reqires that these methods be set up from the word go. This also
487 # avoids any potential problems with moving beyond multi-arch partial.
488 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
489 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
490 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
491 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
492 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
493 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
494 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
495 f:1:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0
496 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
497 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
498 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
499 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
500 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
501 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
502 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
503 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
505 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
506 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
507 f:2:COERCE_FLOAT_TO_DOUBLE:int:coerce_float_to_double:struct type *formal, struct type *actual:formal, actual:::default_coerce_float_to_double::0
508 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:::generic_unwind_get_saved_register::0
510 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
511 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
512 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
514 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
515 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
516 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
518 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
519 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
520 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
522 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
523 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, char *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
524 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
525 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
526 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
527 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
528 f:2:POP_FRAME:void:pop_frame:void:-:::0
530 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
531 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
532 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
533 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
534 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
536 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
537 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
539 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
540 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
541 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
542 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
543 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
544 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
545 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
546 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
547 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
549 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
551 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
552 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
553 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
554 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
555 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
556 # given frame is the outermost one and has no caller.
558 # XXXX - both default and alternate frame_chain_valid functions are
559 # deprecated. New code should use dummy frames and one of the generic
561 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::generic_func_frame_chain_valid::0
562 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
563 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
564 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
565 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
566 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
568 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
569 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
570 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
571 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
572 v:2:PARM_BOUNDARY:int:parm_boundary
574 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
575 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
576 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
577 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
578 # On some machines there are bits in addresses which are not really
579 # part of the address, but are used by the kernel, the hardware, etc.
580 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
581 # we get a "real" address such as one would find in a symbol table.
582 # This is used only for addresses of instructions, and even then I'm
583 # not sure it's used in all contexts. It exists to deal with there
584 # being a few stray bits in the PC which would mislead us, not as some
585 # sort of generic thing to handle alignment or segmentation (it's
586 # possible it should be in TARGET_READ_PC instead).
587 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
588 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
590 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
591 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
592 # the target needs software single step. An ISA method to implement it.
594 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
595 # using the breakpoint system instead of blatting memory directly (as with rs6000).
597 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
598 # single step. If not, then implement single step using breakpoints.
599 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
600 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
601 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
602 # For SVR4 shared libraries, each call goes through a small piece of
603 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
604 # to nonzero if we are current stopped in one of these.
605 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
606 # Sigtramp is a routine that the kernel calls (which then calls the
607 # signal handler). On most machines it is a library routine that is
608 # linked into the executable.
610 # This macro, given a program counter value and the name of the
611 # function in which that PC resides (which can be null if the name is
612 # not known), returns nonzero if the PC and name show that we are in
615 # On most machines just see if the name is sigtramp (and if we have
616 # no name, assume we are not in sigtramp).
618 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
619 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
620 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
621 # own local NAME lookup.
623 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
624 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
626 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
627 # A target might have problems with watchpoints as soon as the stack
628 # frame of the current function has been destroyed. This mostly happens
629 # as the first action in a funtion's epilogue. in_function_epilogue_p()
630 # is defined to return a non-zero value if either the given addr is one
631 # instruction after the stack destroying instruction up to the trailing
632 # return instruction or if we can figure out that the stack frame has
633 # already been invalidated regardless of the value of addr. Targets
634 # which don't suffer from that problem could just let this functionality
636 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
637 # Given a vector of command-line arguments, return a newly allocated
638 # string which, when passed to the create_inferior function, will be
639 # parsed (on Unix systems, by the shell) to yield the same vector.
640 # This function should call error() if the argument vector is not
641 # representable for this target or if this target does not support
642 # command-line arguments.
643 # ARGC is the number of elements in the vector.
644 # ARGV is an array of strings, one per argument.
645 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
646 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
647 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
648 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
655 exec > new-gdbarch.log
656 function_list |
while do_read
659 ${class} ${macro}(${actual})
660 ${returntype} ${function} ($formal)${attrib}
664 eval echo \"\ \ \ \
${r}=\
${${r}}\"
666 # #fallbackdefault=${fallbackdefault}
667 # #valid_p=${valid_p}
669 if class_is_predicate_p
&& fallback_default_p
671 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
675 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
677 echo "Error: postdefault is useless when invalid_p=0" 1>&2
681 if class_is_multiarch_p
683 if class_is_predicate_p
; then :
684 elif test "x${predefault}" = "x"
686 echo "Error: pure multi-arch function must have a predefault" 1>&2
695 compare_new gdbarch.log
701 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
703 /* Dynamic architecture support for GDB, the GNU debugger.
704 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
706 This file is part of GDB.
708 This program is free software; you can redistribute it and/or modify
709 it under the terms of the GNU General Public License as published by
710 the Free Software Foundation; either version 2 of the License, or
711 (at your option) any later version.
713 This program is distributed in the hope that it will be useful,
714 but WITHOUT ANY WARRANTY; without even the implied warranty of
715 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
716 GNU General Public License for more details.
718 You should have received a copy of the GNU General Public License
719 along with this program; if not, write to the Free Software
720 Foundation, Inc., 59 Temple Place - Suite 330,
721 Boston, MA 02111-1307, USA. */
723 /* This file was created with the aid of \`\`gdbarch.sh''.
725 The Bourne shell script \`\`gdbarch.sh'' creates the files
726 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
727 against the existing \`\`gdbarch.[hc]''. Any differences found
730 If editing this file, please also run gdbarch.sh and merge any
731 changes into that script. Conversely, when making sweeping changes
732 to this file, modifying gdbarch.sh and using its output may prove
748 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
750 /* Pull in function declarations refered to, indirectly, via macros. */
751 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
752 #include "inferior.h" /* For unsigned_address_to_pointer(). */
758 struct minimal_symbol;
761 extern struct gdbarch *current_gdbarch;
764 /* If any of the following are defined, the target wasn't correctly
768 #if defined (EXTRA_FRAME_INFO)
769 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
774 #if defined (FRAME_FIND_SAVED_REGS)
775 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
779 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
780 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
787 printf "/* The following are pre-initialized by GDBARCH. */\n"
788 function_list |
while do_read
793 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
794 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
795 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
796 printf "#error \"Non multi-arch definition of ${macro}\"\n"
798 printf "#if GDB_MULTI_ARCH\n"
799 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
800 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
809 printf "/* The following are initialized by the target dependent code. */\n"
810 function_list |
while do_read
812 if [ -n "${comment}" ]
814 echo "${comment}" |
sed \
819 if class_is_multiarch_p
821 if class_is_predicate_p
824 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
827 if class_is_predicate_p
830 printf "#if defined (${macro})\n"
831 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
832 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
833 printf "#if !defined (${macro}_P)\n"
834 printf "#define ${macro}_P() (1)\n"
838 printf "/* Default predicate for non- multi-arch targets. */\n"
839 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
840 printf "#define ${macro}_P() (0)\n"
843 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
844 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
845 printf "#error \"Non multi-arch definition of ${macro}\"\n"
847 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
848 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
852 if class_is_variable_p
854 if fallback_default_p || class_is_predicate_p
857 printf "/* Default (value) for non- multi-arch platforms. */\n"
858 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
859 echo "#define ${macro} (${fallbackdefault})" \
860 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
864 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
865 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
866 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
867 printf "#error \"Non multi-arch definition of ${macro}\"\n"
869 printf "#if GDB_MULTI_ARCH\n"
870 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
871 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
875 if class_is_function_p
877 if class_is_multiarch_p
; then :
878 elif fallback_default_p || class_is_predicate_p
881 printf "/* Default (function) for non- multi-arch platforms. */\n"
882 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
883 if [ "x${fallbackdefault}" = "x0" ]
885 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
887 # FIXME: Should be passing current_gdbarch through!
888 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
889 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
894 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
896 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
897 elif class_is_multiarch_p
899 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
901 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
903 if [ "x${formal}" = "xvoid" ]
905 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
907 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
909 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
910 if class_is_multiarch_p
; then :
912 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
913 printf "#error \"Non multi-arch definition of ${macro}\"\n"
915 printf "#if GDB_MULTI_ARCH\n"
916 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
917 if [ "x${actual}" = "x" ]
919 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
920 elif [ "x${actual}" = "x-" ]
922 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
924 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
935 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
938 /* Mechanism for co-ordinating the selection of a specific
941 GDB targets (*-tdep.c) can register an interest in a specific
942 architecture. Other GDB components can register a need to maintain
943 per-architecture data.
945 The mechanisms below ensures that there is only a loose connection
946 between the set-architecture command and the various GDB
947 components. Each component can independently register their need
948 to maintain architecture specific data with gdbarch.
952 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
955 The more traditional mega-struct containing architecture specific
956 data for all the various GDB components was also considered. Since
957 GDB is built from a variable number of (fairly independent)
958 components it was determined that the global aproach was not
962 /* Register a new architectural family with GDB.
964 Register support for the specified ARCHITECTURE with GDB. When
965 gdbarch determines that the specified architecture has been
966 selected, the corresponding INIT function is called.
970 The INIT function takes two parameters: INFO which contains the
971 information available to gdbarch about the (possibly new)
972 architecture; ARCHES which is a list of the previously created
973 \`\`struct gdbarch'' for this architecture.
975 The INFO parameter is, as far as possible, be pre-initialized with
976 information obtained from INFO.ABFD or the previously selected
979 The ARCHES parameter is a linked list (sorted most recently used)
980 of all the previously created architures for this architecture
981 family. The (possibly NULL) ARCHES->gdbarch can used to access
982 values from the previously selected architecture for this
983 architecture family. The global \`\`current_gdbarch'' shall not be
986 The INIT function shall return any of: NULL - indicating that it
987 doesn't recognize the selected architecture; an existing \`\`struct
988 gdbarch'' from the ARCHES list - indicating that the new
989 architecture is just a synonym for an earlier architecture (see
990 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
991 - that describes the selected architecture (see gdbarch_alloc()).
993 The DUMP_TDEP function shall print out all target specific values.
994 Care should be taken to ensure that the function works in both the
995 multi-arch and non- multi-arch cases. */
999 struct gdbarch *gdbarch;
1000 struct gdbarch_list *next;
1005 /* Use default: NULL (ZERO). */
1006 const struct bfd_arch_info *bfd_arch_info;
1008 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1011 /* Use default: NULL (ZERO). */
1014 /* Use default: NULL (ZERO). */
1015 struct gdbarch_tdep_info *tdep_info;
1018 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1019 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1021 /* DEPRECATED - use gdbarch_register() */
1022 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1024 extern void gdbarch_register (enum bfd_architecture architecture,
1025 gdbarch_init_ftype *,
1026 gdbarch_dump_tdep_ftype *);
1029 /* Return a freshly allocated, NULL terminated, array of the valid
1030 architecture names. Since architectures are registered during the
1031 _initialize phase this function only returns useful information
1032 once initialization has been completed. */
1034 extern const char **gdbarch_printable_names (void);
1037 /* Helper function. Search the list of ARCHES for a GDBARCH that
1038 matches the information provided by INFO. */
1040 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1043 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1044 basic initialization using values obtained from the INFO andTDEP
1045 parameters. set_gdbarch_*() functions are called to complete the
1046 initialization of the object. */
1048 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1051 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1052 It is assumed that the caller freeds the \`\`struct
1055 extern void gdbarch_free (struct gdbarch *);
1058 /* Helper function. Force an update of the current architecture.
1060 The actual architecture selected is determined by INFO, \`\`(gdb) set
1061 architecture'' et.al., the existing architecture and BFD's default
1062 architecture. INFO should be initialized to zero and then selected
1063 fields should be updated.
1065 Returns non-zero if the update succeeds */
1067 extern int gdbarch_update_p (struct gdbarch_info info);
1071 /* Register per-architecture data-pointer.
1073 Reserve space for a per-architecture data-pointer. An identifier
1074 for the reserved data-pointer is returned. That identifer should
1075 be saved in a local static variable.
1077 The per-architecture data-pointer is either initialized explicitly
1078 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1079 gdbarch_data()). FREE() is called to delete either an existing
1080 data-pointer overridden by set_gdbarch_data() or when the
1081 architecture object is being deleted.
1083 When a previously created architecture is re-selected, the
1084 per-architecture data-pointer for that previous architecture is
1085 restored. INIT() is not re-called.
1087 Multiple registrarants for any architecture are allowed (and
1088 strongly encouraged). */
1090 struct gdbarch_data;
1092 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1093 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1095 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1096 gdbarch_data_free_ftype *free);
1097 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1098 struct gdbarch_data *data,
1101 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1104 /* Register per-architecture memory region.
1106 Provide a memory-region swap mechanism. Per-architecture memory
1107 region are created. These memory regions are swapped whenever the
1108 architecture is changed. For a new architecture, the memory region
1109 is initialized with zero (0) and the INIT function is called.
1111 Memory regions are swapped / initialized in the order that they are
1112 registered. NULL DATA and/or INIT values can be specified.
1114 New code should use register_gdbarch_data(). */
1116 typedef void (gdbarch_swap_ftype) (void);
1117 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1118 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1122 /* The target-system-dependent byte order is dynamic */
1124 extern int target_byte_order;
1125 #ifndef TARGET_BYTE_ORDER
1126 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1129 extern int target_byte_order_auto;
1130 #ifndef TARGET_BYTE_ORDER_AUTO
1131 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1136 /* The target-system-dependent BFD architecture is dynamic */
1138 extern int target_architecture_auto;
1139 #ifndef TARGET_ARCHITECTURE_AUTO
1140 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1143 extern const struct bfd_arch_info *target_architecture;
1144 #ifndef TARGET_ARCHITECTURE
1145 #define TARGET_ARCHITECTURE (target_architecture + 0)
1149 /* The target-system-dependent disassembler is semi-dynamic */
1151 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1152 unsigned int len, disassemble_info *info);
1154 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1155 disassemble_info *info);
1157 extern void dis_asm_print_address (bfd_vma addr,
1158 disassemble_info *info);
1160 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1161 extern disassemble_info tm_print_insn_info;
1162 #ifndef TARGET_PRINT_INSN_INFO
1163 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1168 /* Set the dynamic target-system-dependent parameters (architecture,
1169 byte-order, ...) using information found in the BFD */
1171 extern void set_gdbarch_from_file (bfd *);
1174 /* Initialize the current architecture to the "first" one we find on
1177 extern void initialize_current_architecture (void);
1179 /* For non-multiarched targets, do any initialization of the default
1180 gdbarch object necessary after the _initialize_MODULE functions
1182 extern void initialize_non_multiarch (void);
1184 /* gdbarch trace variable */
1185 extern int gdbarch_debug;
1187 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1192 #../move-if-change new-gdbarch.h gdbarch.h
1193 compare_new gdbarch.h
1200 exec > new-gdbarch.c
1205 #include "arch-utils.h"
1209 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1211 /* Just include everything in sight so that the every old definition
1212 of macro is visible. */
1213 #include "gdb_string.h"
1217 #include "inferior.h"
1218 #include "breakpoint.h"
1219 #include "gdb_wait.h"
1220 #include "gdbcore.h"
1223 #include "gdbthread.h"
1224 #include "annotate.h"
1225 #include "symfile.h" /* for overlay functions */
1226 #include "value.h" /* For old tm.h/nm.h macros. */
1230 #include "floatformat.h"
1232 #include "gdb_assert.h"
1233 #include "gdb_string.h"
1234 #include "gdb-events.h"
1236 /* Static function declarations */
1238 static void verify_gdbarch (struct gdbarch *gdbarch);
1239 static void alloc_gdbarch_data (struct gdbarch *);
1240 static void free_gdbarch_data (struct gdbarch *);
1241 static void init_gdbarch_swap (struct gdbarch *);
1242 static void clear_gdbarch_swap (struct gdbarch *);
1243 static void swapout_gdbarch_swap (struct gdbarch *);
1244 static void swapin_gdbarch_swap (struct gdbarch *);
1246 /* Non-zero if we want to trace architecture code. */
1248 #ifndef GDBARCH_DEBUG
1249 #define GDBARCH_DEBUG 0
1251 int gdbarch_debug = GDBARCH_DEBUG;
1255 # gdbarch open the gdbarch object
1257 printf "/* Maintain the struct gdbarch object */\n"
1259 printf "struct gdbarch\n"
1261 printf " /* Has this architecture been fully initialized? */\n"
1262 printf " int initialized_p;\n"
1263 printf " /* basic architectural information */\n"
1264 function_list |
while do_read
1268 printf " ${returntype} ${function};\n"
1272 printf " /* target specific vector. */\n"
1273 printf " struct gdbarch_tdep *tdep;\n"
1274 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1276 printf " /* per-architecture data-pointers */\n"
1277 printf " unsigned nr_data;\n"
1278 printf " void **data;\n"
1280 printf " /* per-architecture swap-regions */\n"
1281 printf " struct gdbarch_swap *swap;\n"
1284 /* Multi-arch values.
1286 When extending this structure you must:
1288 Add the field below.
1290 Declare set/get functions and define the corresponding
1293 gdbarch_alloc(): If zero/NULL is not a suitable default,
1294 initialize the new field.
1296 verify_gdbarch(): Confirm that the target updated the field
1299 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1302 \`\`startup_gdbarch()'': Append an initial value to the static
1303 variable (base values on the host's c-type system).
1305 get_gdbarch(): Implement the set/get functions (probably using
1306 the macro's as shortcuts).
1311 function_list |
while do_read
1313 if class_is_variable_p
1315 printf " ${returntype} ${function};\n"
1316 elif class_is_function_p
1318 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1323 # A pre-initialized vector
1327 /* The default architecture uses host values (for want of a better
1331 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1333 printf "struct gdbarch startup_gdbarch =\n"
1335 printf " 1, /* Always initialized. */\n"
1336 printf " /* basic architecture information */\n"
1337 function_list |
while do_read
1341 printf " ${staticdefault},\n"
1345 /* target specific vector and its dump routine */
1347 /*per-architecture data-pointers and swap regions */
1349 /* Multi-arch values */
1351 function_list |
while do_read
1353 if class_is_function_p || class_is_variable_p
1355 printf " ${staticdefault},\n"
1359 /* startup_gdbarch() */
1362 struct gdbarch *current_gdbarch = &startup_gdbarch;
1364 /* Do any initialization needed for a non-multiarch configuration
1365 after the _initialize_MODULE functions have been run. */
1367 initialize_non_multiarch (void)
1369 alloc_gdbarch_data (&startup_gdbarch);
1370 /* Ensure that all swap areas are zeroed so that they again think
1371 they are starting from scratch. */
1372 clear_gdbarch_swap (&startup_gdbarch);
1373 init_gdbarch_swap (&startup_gdbarch);
1377 # Create a new gdbarch struct
1381 /* Create a new \`\`struct gdbarch'' based on information provided by
1382 \`\`struct gdbarch_info''. */
1387 gdbarch_alloc (const struct gdbarch_info *info,
1388 struct gdbarch_tdep *tdep)
1390 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1391 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1392 the current local architecture and not the previous global
1393 architecture. This ensures that the new architectures initial
1394 values are not influenced by the previous architecture. Once
1395 everything is parameterised with gdbarch, this will go away. */
1396 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1397 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1399 alloc_gdbarch_data (current_gdbarch);
1401 current_gdbarch->tdep = tdep;
1404 function_list |
while do_read
1408 printf " current_gdbarch->${function} = info->${function};\n"
1412 printf " /* Force the explicit initialization of these. */\n"
1413 function_list |
while do_read
1415 if class_is_function_p || class_is_variable_p
1417 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1419 printf " current_gdbarch->${function} = ${predefault};\n"
1424 /* gdbarch_alloc() */
1426 return current_gdbarch;
1430 # Free a gdbarch struct.
1434 /* Free a gdbarch struct. This should never happen in normal
1435 operation --- once you've created a gdbarch, you keep it around.
1436 However, if an architecture's init function encounters an error
1437 building the structure, it may need to clean up a partially
1438 constructed gdbarch. */
1441 gdbarch_free (struct gdbarch *arch)
1443 gdb_assert (arch != NULL);
1444 free_gdbarch_data (arch);
1449 # verify a new architecture
1452 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1456 verify_gdbarch (struct gdbarch *gdbarch)
1458 struct ui_file *log;
1459 struct cleanup *cleanups;
1462 /* Only perform sanity checks on a multi-arch target. */
1463 if (!GDB_MULTI_ARCH)
1465 log = mem_fileopen ();
1466 cleanups = make_cleanup_ui_file_delete (log);
1468 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1469 fprintf_unfiltered (log, "\n\tbyte-order");
1470 if (gdbarch->bfd_arch_info == NULL)
1471 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1472 /* Check those that need to be defined for the given multi-arch level. */
1474 function_list |
while do_read
1476 if class_is_function_p || class_is_variable_p
1478 if [ "x${invalid_p}" = "x0" ]
1480 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1481 elif class_is_predicate_p
1483 printf " /* Skip verify of ${function}, has predicate */\n"
1484 # FIXME: See do_read for potential simplification
1485 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1487 printf " if (${invalid_p})\n"
1488 printf " gdbarch->${function} = ${postdefault};\n"
1489 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1491 printf " if (gdbarch->${function} == ${predefault})\n"
1492 printf " gdbarch->${function} = ${postdefault};\n"
1493 elif [ -n "${postdefault}" ]
1495 printf " if (gdbarch->${function} == 0)\n"
1496 printf " gdbarch->${function} = ${postdefault};\n"
1497 elif [ -n "${invalid_p}" ]
1499 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1500 printf " && (${invalid_p}))\n"
1501 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1502 elif [ -n "${predefault}" ]
1504 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1505 printf " && (gdbarch->${function} == ${predefault}))\n"
1506 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1511 buf = ui_file_xstrdup (log, &dummy);
1512 make_cleanup (xfree, buf);
1513 if (strlen (buf) > 0)
1514 internal_error (__FILE__, __LINE__,
1515 "verify_gdbarch: the following are invalid ...%s",
1517 do_cleanups (cleanups);
1521 # dump the structure
1525 /* Print out the details of the current architecture. */
1527 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1528 just happens to match the global variable \`\`current_gdbarch''. That
1529 way macros refering to that variable get the local and not the global
1530 version - ulgh. Once everything is parameterised with gdbarch, this
1534 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1536 fprintf_unfiltered (file,
1537 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1540 function_list |
sort -t: +2 |
while do_read
1542 # multiarch functions don't have macros.
1543 if class_is_multiarch_p
1545 printf " if (GDB_MULTI_ARCH)\n"
1546 printf " fprintf_unfiltered (file,\n"
1547 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1548 printf " (long) current_gdbarch->${function});\n"
1551 # Print the macro definition.
1552 printf "#ifdef ${macro}\n"
1553 if [ "x${returntype}" = "xvoid" ]
1555 printf "#if GDB_MULTI_ARCH\n"
1556 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1558 if class_is_function_p
1560 printf " fprintf_unfiltered (file,\n"
1561 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1562 printf " \"${macro}(${actual})\",\n"
1563 printf " XSTRING (${macro} (${actual})));\n"
1565 printf " fprintf_unfiltered (file,\n"
1566 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1567 printf " XSTRING (${macro}));\n"
1569 # Print the architecture vector value
1570 if [ "x${returntype}" = "xvoid" ]
1574 if [ "x${print_p}" = "x()" ]
1576 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1577 elif [ "x${print_p}" = "x0" ]
1579 printf " /* skip print of ${macro}, print_p == 0. */\n"
1580 elif [ -n "${print_p}" ]
1582 printf " if (${print_p})\n"
1583 printf " fprintf_unfiltered (file,\n"
1584 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1585 printf " ${print});\n"
1586 elif class_is_function_p
1588 printf " if (GDB_MULTI_ARCH)\n"
1589 printf " fprintf_unfiltered (file,\n"
1590 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1591 printf " (long) current_gdbarch->${function}\n"
1592 printf " /*${macro} ()*/);\n"
1594 printf " fprintf_unfiltered (file,\n"
1595 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1596 printf " ${print});\n"
1601 if (current_gdbarch->dump_tdep != NULL)
1602 current_gdbarch->dump_tdep (current_gdbarch, file);
1610 struct gdbarch_tdep *
1611 gdbarch_tdep (struct gdbarch *gdbarch)
1613 if (gdbarch_debug >= 2)
1614 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1615 return gdbarch->tdep;
1619 function_list |
while do_read
1621 if class_is_predicate_p
1625 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1627 printf " gdb_assert (gdbarch != NULL);\n"
1628 if [ -n "${valid_p}" ]
1630 printf " return ${valid_p};\n"
1632 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1636 if class_is_function_p
1639 printf "${returntype}\n"
1640 if [ "x${formal}" = "xvoid" ]
1642 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1644 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1647 printf " gdb_assert (gdbarch != NULL);\n"
1648 printf " if (gdbarch->${function} == 0)\n"
1649 printf " internal_error (__FILE__, __LINE__,\n"
1650 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1651 printf " if (gdbarch_debug >= 2)\n"
1652 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1653 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1655 if class_is_multiarch_p
1662 if class_is_multiarch_p
1664 params
="gdbarch, ${actual}"
1669 if [ "x${returntype}" = "xvoid" ]
1671 printf " gdbarch->${function} (${params});\n"
1673 printf " return gdbarch->${function} (${params});\n"
1678 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1679 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1681 printf " gdbarch->${function} = ${function};\n"
1683 elif class_is_variable_p
1686 printf "${returntype}\n"
1687 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1689 printf " gdb_assert (gdbarch != NULL);\n"
1690 if [ "x${invalid_p}" = "x0" ]
1692 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1693 elif [ -n "${invalid_p}" ]
1695 printf " if (${invalid_p})\n"
1696 printf " internal_error (__FILE__, __LINE__,\n"
1697 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1698 elif [ -n "${predefault}" ]
1700 printf " if (gdbarch->${function} == ${predefault})\n"
1701 printf " internal_error (__FILE__, __LINE__,\n"
1702 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1704 printf " if (gdbarch_debug >= 2)\n"
1705 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1706 printf " return gdbarch->${function};\n"
1710 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1711 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1713 printf " gdbarch->${function} = ${function};\n"
1715 elif class_is_info_p
1718 printf "${returntype}\n"
1719 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1721 printf " gdb_assert (gdbarch != NULL);\n"
1722 printf " if (gdbarch_debug >= 2)\n"
1723 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1724 printf " return gdbarch->${function};\n"
1729 # All the trailing guff
1733 /* Keep a registry of per-architecture data-pointers required by GDB
1740 gdbarch_data_init_ftype *init;
1741 gdbarch_data_free_ftype *free;
1744 struct gdbarch_data_registration
1746 struct gdbarch_data *data;
1747 struct gdbarch_data_registration *next;
1750 struct gdbarch_data_registry
1753 struct gdbarch_data_registration *registrations;
1756 struct gdbarch_data_registry gdbarch_data_registry =
1761 struct gdbarch_data *
1762 register_gdbarch_data (gdbarch_data_init_ftype *init,
1763 gdbarch_data_free_ftype *free)
1765 struct gdbarch_data_registration **curr;
1766 /* Append the new registraration. */
1767 for (curr = &gdbarch_data_registry.registrations;
1769 curr = &(*curr)->next);
1770 (*curr) = XMALLOC (struct gdbarch_data_registration);
1771 (*curr)->next = NULL;
1772 (*curr)->data = XMALLOC (struct gdbarch_data);
1773 (*curr)->data->index = gdbarch_data_registry.nr++;
1774 (*curr)->data->init = init;
1775 (*curr)->data->init_p = 1;
1776 (*curr)->data->free = free;
1777 return (*curr)->data;
1781 /* Create/delete the gdbarch data vector. */
1784 alloc_gdbarch_data (struct gdbarch *gdbarch)
1786 gdb_assert (gdbarch->data == NULL);
1787 gdbarch->nr_data = gdbarch_data_registry.nr;
1788 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1792 free_gdbarch_data (struct gdbarch *gdbarch)
1794 struct gdbarch_data_registration *rego;
1795 gdb_assert (gdbarch->data != NULL);
1796 for (rego = gdbarch_data_registry.registrations;
1800 struct gdbarch_data *data = rego->data;
1801 gdb_assert (data->index < gdbarch->nr_data);
1802 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1804 data->free (gdbarch, gdbarch->data[data->index]);
1805 gdbarch->data[data->index] = NULL;
1808 xfree (gdbarch->data);
1809 gdbarch->data = NULL;
1813 /* Initialize the current value of the specified per-architecture
1817 set_gdbarch_data (struct gdbarch *gdbarch,
1818 struct gdbarch_data *data,
1821 gdb_assert (data->index < gdbarch->nr_data);
1822 if (gdbarch->data[data->index] != NULL)
1824 gdb_assert (data->free != NULL);
1825 data->free (gdbarch, gdbarch->data[data->index]);
1827 gdbarch->data[data->index] = pointer;
1830 /* Return the current value of the specified per-architecture
1834 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1836 gdb_assert (data->index < gdbarch->nr_data);
1837 /* The data-pointer isn't initialized, call init() to get a value but
1838 only if the architecture initializaiton has completed. Otherwise
1839 punt - hope that the caller knows what they are doing. */
1840 if (gdbarch->data[data->index] == NULL
1841 && gdbarch->initialized_p)
1843 /* Be careful to detect an initialization cycle. */
1844 gdb_assert (data->init_p);
1846 gdb_assert (data->init != NULL);
1847 gdbarch->data[data->index] = data->init (gdbarch);
1849 gdb_assert (gdbarch->data[data->index] != NULL);
1851 return gdbarch->data[data->index];
1856 /* Keep a registry of swapped data required by GDB modules. */
1861 struct gdbarch_swap_registration *source;
1862 struct gdbarch_swap *next;
1865 struct gdbarch_swap_registration
1868 unsigned long sizeof_data;
1869 gdbarch_swap_ftype *init;
1870 struct gdbarch_swap_registration *next;
1873 struct gdbarch_swap_registry
1876 struct gdbarch_swap_registration *registrations;
1879 struct gdbarch_swap_registry gdbarch_swap_registry =
1885 register_gdbarch_swap (void *data,
1886 unsigned long sizeof_data,
1887 gdbarch_swap_ftype *init)
1889 struct gdbarch_swap_registration **rego;
1890 for (rego = &gdbarch_swap_registry.registrations;
1892 rego = &(*rego)->next);
1893 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1894 (*rego)->next = NULL;
1895 (*rego)->init = init;
1896 (*rego)->data = data;
1897 (*rego)->sizeof_data = sizeof_data;
1901 clear_gdbarch_swap (struct gdbarch *gdbarch)
1903 struct gdbarch_swap *curr;
1904 for (curr = gdbarch->swap;
1908 memset (curr->source->data, 0, curr->source->sizeof_data);
1913 init_gdbarch_swap (struct gdbarch *gdbarch)
1915 struct gdbarch_swap_registration *rego;
1916 struct gdbarch_swap **curr = &gdbarch->swap;
1917 for (rego = gdbarch_swap_registry.registrations;
1921 if (rego->data != NULL)
1923 (*curr) = XMALLOC (struct gdbarch_swap);
1924 (*curr)->source = rego;
1925 (*curr)->swap = xmalloc (rego->sizeof_data);
1926 (*curr)->next = NULL;
1927 curr = &(*curr)->next;
1929 if (rego->init != NULL)
1935 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1937 struct gdbarch_swap *curr;
1938 for (curr = gdbarch->swap;
1941 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1945 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1947 struct gdbarch_swap *curr;
1948 for (curr = gdbarch->swap;
1951 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1955 /* Keep a registry of the architectures known by GDB. */
1957 struct gdbarch_registration
1959 enum bfd_architecture bfd_architecture;
1960 gdbarch_init_ftype *init;
1961 gdbarch_dump_tdep_ftype *dump_tdep;
1962 struct gdbarch_list *arches;
1963 struct gdbarch_registration *next;
1966 static struct gdbarch_registration *gdbarch_registry = NULL;
1969 append_name (const char ***buf, int *nr, const char *name)
1971 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1977 gdbarch_printable_names (void)
1981 /* Accumulate a list of names based on the registed list of
1983 enum bfd_architecture a;
1985 const char **arches = NULL;
1986 struct gdbarch_registration *rego;
1987 for (rego = gdbarch_registry;
1991 const struct bfd_arch_info *ap;
1992 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1994 internal_error (__FILE__, __LINE__,
1995 "gdbarch_architecture_names: multi-arch unknown");
1998 append_name (&arches, &nr_arches, ap->printable_name);
2003 append_name (&arches, &nr_arches, NULL);
2007 /* Just return all the architectures that BFD knows. Assume that
2008 the legacy architecture framework supports them. */
2009 return bfd_arch_list ();
2014 gdbarch_register (enum bfd_architecture bfd_architecture,
2015 gdbarch_init_ftype *init,
2016 gdbarch_dump_tdep_ftype *dump_tdep)
2018 struct gdbarch_registration **curr;
2019 const struct bfd_arch_info *bfd_arch_info;
2020 /* Check that BFD recognizes this architecture */
2021 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2022 if (bfd_arch_info == NULL)
2024 internal_error (__FILE__, __LINE__,
2025 "gdbarch: Attempt to register unknown architecture (%d)",
2028 /* Check that we haven't seen this architecture before */
2029 for (curr = &gdbarch_registry;
2031 curr = &(*curr)->next)
2033 if (bfd_architecture == (*curr)->bfd_architecture)
2034 internal_error (__FILE__, __LINE__,
2035 "gdbarch: Duplicate registraration of architecture (%s)",
2036 bfd_arch_info->printable_name);
2040 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2041 bfd_arch_info->printable_name,
2044 (*curr) = XMALLOC (struct gdbarch_registration);
2045 (*curr)->bfd_architecture = bfd_architecture;
2046 (*curr)->init = init;
2047 (*curr)->dump_tdep = dump_tdep;
2048 (*curr)->arches = NULL;
2049 (*curr)->next = NULL;
2050 /* When non- multi-arch, install whatever target dump routine we've
2051 been provided - hopefully that routine has been written correctly
2052 and works regardless of multi-arch. */
2053 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2054 && startup_gdbarch.dump_tdep == NULL)
2055 startup_gdbarch.dump_tdep = dump_tdep;
2059 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2060 gdbarch_init_ftype *init)
2062 gdbarch_register (bfd_architecture, init, NULL);
2066 /* Look for an architecture using gdbarch_info. Base search on only
2067 BFD_ARCH_INFO and BYTE_ORDER. */
2069 struct gdbarch_list *
2070 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2071 const struct gdbarch_info *info)
2073 for (; arches != NULL; arches = arches->next)
2075 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2077 if (info->byte_order != arches->gdbarch->byte_order)
2085 /* Update the current architecture. Return ZERO if the update request
2089 gdbarch_update_p (struct gdbarch_info info)
2091 struct gdbarch *new_gdbarch;
2092 struct gdbarch *old_gdbarch;
2093 struct gdbarch_registration *rego;
2095 /* Fill in missing parts of the INFO struct using a number of
2096 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2098 /* \`\`(gdb) set architecture ...'' */
2099 if (info.bfd_arch_info == NULL
2100 && !TARGET_ARCHITECTURE_AUTO)
2101 info.bfd_arch_info = TARGET_ARCHITECTURE;
2102 if (info.bfd_arch_info == NULL
2103 && info.abfd != NULL
2104 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2105 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2106 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2107 if (info.bfd_arch_info == NULL)
2108 info.bfd_arch_info = TARGET_ARCHITECTURE;
2110 /* \`\`(gdb) set byte-order ...'' */
2111 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2112 && !TARGET_BYTE_ORDER_AUTO)
2113 info.byte_order = TARGET_BYTE_ORDER;
2114 /* From the INFO struct. */
2115 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2116 && info.abfd != NULL)
2117 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2118 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2119 : BFD_ENDIAN_UNKNOWN);
2120 /* From the current target. */
2121 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2122 info.byte_order = TARGET_BYTE_ORDER;
2124 /* Must have found some sort of architecture. */
2125 gdb_assert (info.bfd_arch_info != NULL);
2129 fprintf_unfiltered (gdb_stdlog,
2130 "gdbarch_update: info.bfd_arch_info %s\n",
2131 (info.bfd_arch_info != NULL
2132 ? info.bfd_arch_info->printable_name
2134 fprintf_unfiltered (gdb_stdlog,
2135 "gdbarch_update: info.byte_order %d (%s)\n",
2137 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2138 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2140 fprintf_unfiltered (gdb_stdlog,
2141 "gdbarch_update: info.abfd 0x%lx\n",
2143 fprintf_unfiltered (gdb_stdlog,
2144 "gdbarch_update: info.tdep_info 0x%lx\n",
2145 (long) info.tdep_info);
2148 /* Find the target that knows about this architecture. */
2149 for (rego = gdbarch_registry;
2152 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2157 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2161 /* Swap the data belonging to the old target out setting the
2162 installed data to zero. This stops the ->init() function trying
2163 to refer to the previous architecture's global data structures. */
2164 swapout_gdbarch_swap (current_gdbarch);
2165 clear_gdbarch_swap (current_gdbarch);
2167 /* Save the previously selected architecture, setting the global to
2168 NULL. This stops ->init() trying to use the previous
2169 architecture's configuration. The previous architecture may not
2170 even be of the same architecture family. The most recent
2171 architecture of the same family is found at the head of the
2172 rego->arches list. */
2173 old_gdbarch = current_gdbarch;
2174 current_gdbarch = NULL;
2176 /* Ask the target for a replacement architecture. */
2177 new_gdbarch = rego->init (info, rego->arches);
2179 /* Did the target like it? No. Reject the change and revert to the
2180 old architecture. */
2181 if (new_gdbarch == NULL)
2184 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2185 swapin_gdbarch_swap (old_gdbarch);
2186 current_gdbarch = old_gdbarch;
2190 /* Did the architecture change? No. Oops, put the old architecture
2192 if (old_gdbarch == new_gdbarch)
2195 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2197 new_gdbarch->bfd_arch_info->printable_name);
2198 swapin_gdbarch_swap (old_gdbarch);
2199 current_gdbarch = old_gdbarch;
2203 /* Is this a pre-existing architecture? Yes. Move it to the front
2204 of the list of architectures (keeping the list sorted Most
2205 Recently Used) and then copy it in. */
2207 struct gdbarch_list **list;
2208 for (list = ®o->arches;
2210 list = &(*list)->next)
2212 if ((*list)->gdbarch == new_gdbarch)
2214 struct gdbarch_list *this;
2216 fprintf_unfiltered (gdb_stdlog,
2217 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2219 new_gdbarch->bfd_arch_info->printable_name);
2222 (*list) = this->next;
2223 /* Insert in the front. */
2224 this->next = rego->arches;
2225 rego->arches = this;
2226 /* Copy the new architecture in. */
2227 current_gdbarch = new_gdbarch;
2228 swapin_gdbarch_swap (new_gdbarch);
2229 architecture_changed_event ();
2235 /* Prepend this new architecture to the architecture list (keep the
2236 list sorted Most Recently Used). */
2238 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2239 this->next = rego->arches;
2240 this->gdbarch = new_gdbarch;
2241 rego->arches = this;
2244 /* Switch to this new architecture marking it initialized. */
2245 current_gdbarch = new_gdbarch;
2246 current_gdbarch->initialized_p = 1;
2249 fprintf_unfiltered (gdb_stdlog,
2250 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2252 new_gdbarch->bfd_arch_info->printable_name);
2255 /* Check that the newly installed architecture is valid. Plug in
2256 any post init values. */
2257 new_gdbarch->dump_tdep = rego->dump_tdep;
2258 verify_gdbarch (new_gdbarch);
2260 /* Initialize the per-architecture memory (swap) areas.
2261 CURRENT_GDBARCH must be update before these modules are
2263 init_gdbarch_swap (new_gdbarch);
2265 /* Initialize the per-architecture data. CURRENT_GDBARCH
2266 must be updated before these modules are called. */
2267 architecture_changed_event ();
2270 gdbarch_dump (current_gdbarch, gdb_stdlog);
2278 /* Pointer to the target-dependent disassembly function. */
2279 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2280 disassemble_info tm_print_insn_info;
2283 extern void _initialize_gdbarch (void);
2286 _initialize_gdbarch (void)
2288 struct cmd_list_element *c;
2290 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2291 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2292 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2293 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2294 tm_print_insn_info.print_address_func = dis_asm_print_address;
2296 add_show_from_set (add_set_cmd ("arch",
2299 (char *)&gdbarch_debug,
2300 "Set architecture debugging.\\n\\
2301 When non-zero, architecture debugging is enabled.", &setdebuglist),
2303 c = add_set_cmd ("archdebug",
2306 (char *)&gdbarch_debug,
2307 "Set architecture debugging.\\n\\
2308 When non-zero, architecture debugging is enabled.", &setlist);
2310 deprecate_cmd (c, "set debug arch");
2311 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2317 #../move-if-change new-gdbarch.c gdbarch.c
2318 compare_new gdbarch.c