3 # Architecture commands for GDB, the GNU debugger.
4 # Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
6 # This file is part of GDB.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 # Make certain that the script is running in an internationalized
25 LC_ALL
=c
; export LC_ALL
33 echo "${file} missing? cp new-${file} ${file}" 1>&2
34 elif diff -u ${file} new-
${file}
36 echo "${file} unchanged" 1>&2
38 echo "${file} has changed? cp new-${file} ${file}" 1>&2
43 # Format of the input table
44 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
52 if test "${line}" = ""
55 elif test "${line}" = "#" -a "${comment}" = ""
58 elif expr "${line}" : "#" > /dev
/null
64 # The semantics of IFS varies between different SH's. Some
65 # treat ``::' as three fields while some treat it as just too.
66 # Work around this by eliminating ``::'' ....
67 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
69 OFS
="${IFS}" ; IFS
="[:]"
70 eval read ${read} <<EOF
75 # .... and then going back through each field and strip out those
76 # that ended up with just that space character.
79 if eval test \"\
${${r}}\" = \"\
\"
86 1 ) gt_level
=">= GDB_MULTI_ARCH_PARTIAL" ;;
87 2 ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
88 "" ) gt_level
="> GDB_MULTI_ARCH_PARTIAL" ;;
89 * ) error
"Error: bad level for ${function}" 1>&2 ; kill $$
; exit 1 ;;
93 m
) staticdefault
="${predefault}" ;;
94 M
) staticdefault
="0" ;;
95 * ) test "${staticdefault}" || staticdefault
=0 ;;
97 # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non-
98 # multi-arch defaults.
99 # test "${predefault}" || predefault=0
101 # come up with a format, use a few guesses for variables
102 case ":${class}:${fmt}:${print}:" in
104 if [ "${returntype}" = int
]
108 elif [ "${returntype}" = long
]
115 test "${fmt}" ||
fmt="%ld"
116 test "${print}" || print
="(long) ${macro}"
120 case "${invalid_p}" in
122 if test -n "${predefault}" -a "${predefault}" != "0"
124 #invalid_p="gdbarch->${function} == ${predefault}"
125 predicate
="gdbarch->${function} != ${predefault}"
132 echo "Predicate function ${function} with invalid_p." 1>&2
139 # PREDEFAULT is a valid fallback definition of MEMBER when
140 # multi-arch is not enabled. This ensures that the
141 # default value, when multi-arch is the same as the
142 # default value when not multi-arch. POSTDEFAULT is
143 # always a valid definition of MEMBER as this again
144 # ensures consistency.
146 if [ -n "${postdefault}" ]
148 fallbackdefault
="${postdefault}"
149 elif [ -n "${predefault}" ]
151 fallbackdefault
="${predefault}"
156 #NOT YET: See gdbarch.log for basic verification of
171 fallback_default_p
()
173 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
174 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
177 class_is_variable_p
()
185 class_is_function_p
()
188 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
193 class_is_multiarch_p
()
201 class_is_predicate_p
()
204 *F
* |
*V
* |
*M
* ) true
;;
218 # dump out/verify the doco
228 # F -> function + predicate
229 # hiding a function + predicate to test function validity
232 # V -> variable + predicate
233 # hiding a variable + predicate to test variables validity
235 # hiding something from the ``struct info'' object
236 # m -> multi-arch function
237 # hiding a multi-arch function (parameterised with the architecture)
238 # M -> multi-arch function + predicate
239 # hiding a multi-arch function + predicate to test function validity
243 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
244 # LEVEL is a predicate on checking that a given method is
245 # initialized (using INVALID_P).
249 # The name of the MACRO that this method is to be accessed by.
253 # For functions, the return type; for variables, the data type
257 # For functions, the member function name; for variables, the
258 # variable name. Member function names are always prefixed with
259 # ``gdbarch_'' for name-space purity.
263 # The formal argument list. It is assumed that the formal
264 # argument list includes the actual name of each list element.
265 # A function with no arguments shall have ``void'' as the
266 # formal argument list.
270 # The list of actual arguments. The arguments specified shall
271 # match the FORMAL list given above. Functions with out
272 # arguments leave this blank.
276 # Any GCC attributes that should be attached to the function
277 # declaration. At present this field is unused.
281 # To help with the GDB startup a static gdbarch object is
282 # created. STATICDEFAULT is the value to insert into that
283 # static gdbarch object. Since this a static object only
284 # simple expressions can be used.
286 # If STATICDEFAULT is empty, zero is used.
290 # An initial value to assign to MEMBER of the freshly
291 # malloc()ed gdbarch object. After initialization, the
292 # freshly malloc()ed object is passed to the target
293 # architecture code for further updates.
295 # If PREDEFAULT is empty, zero is used.
297 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
298 # INVALID_P are specified, PREDEFAULT will be used as the
299 # default for the non- multi-arch target.
301 # A zero PREDEFAULT function will force the fallback to call
304 # Variable declarations can refer to ``gdbarch'' which will
305 # contain the current architecture. Care should be taken.
309 # A value to assign to MEMBER of the new gdbarch object should
310 # the target architecture code fail to change the PREDEFAULT
313 # If POSTDEFAULT is empty, no post update is performed.
315 # If both INVALID_P and POSTDEFAULT are non-empty then
316 # INVALID_P will be used to determine if MEMBER should be
317 # changed to POSTDEFAULT.
319 # If a non-empty POSTDEFAULT and a zero INVALID_P are
320 # specified, POSTDEFAULT will be used as the default for the
321 # non- multi-arch target (regardless of the value of
324 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
326 # Variable declarations can refer to ``gdbarch'' which will
327 # contain the current architecture. Care should be taken.
331 # A predicate equation that validates MEMBER. Non-zero is
332 # returned if the code creating the new architecture failed to
333 # initialize MEMBER or the initialized the member is invalid.
334 # If POSTDEFAULT is non-empty then MEMBER will be updated to
335 # that value. If POSTDEFAULT is empty then internal_error()
338 # If INVALID_P is empty, a check that MEMBER is no longer
339 # equal to PREDEFAULT is used.
341 # The expression ``0'' disables the INVALID_P check making
342 # PREDEFAULT a legitimate value.
344 # See also PREDEFAULT and POSTDEFAULT.
348 # printf style format string that can be used to print out the
349 # MEMBER. Sometimes "%s" is useful. For functions, this is
350 # ignored and the function address is printed.
352 # If FMT is empty, ``%ld'' is used.
356 # An optional equation that casts MEMBER to a value suitable
357 # for formatting by FMT.
359 # If PRINT is empty, ``(long)'' is used.
363 # An optional indicator for any predicte to wrap around the
366 # () -> Call a custom function to do the dump.
367 # exp -> Wrap print up in ``if (${print_p}) ...
368 # ``'' -> No predicate
370 # If PRINT_P is empty, ``1'' is always used.
377 echo "Bad field ${field}"
385 # See below (DOCO) for description of each field
387 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
389 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
391 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
392 # Number of bits in a char or unsigned char for the target machine.
393 # Just like CHAR_BIT in <limits.h> but describes the target machine.
394 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
396 # Number of bits in a short or unsigned short for the target machine.
397 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
398 # Number of bits in an int or unsigned int for the target machine.
399 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
400 # Number of bits in a long or unsigned long for the target machine.
401 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
402 # Number of bits in a long long or unsigned long long for the target
404 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
405 # Number of bits in a float for the target machine.
406 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
407 # Number of bits in a double for the target machine.
408 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
409 # Number of bits in a long double for the target machine.
410 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
411 # For most targets, a pointer on the target and its representation as an
412 # address in GDB have the same size and "look the same". For such a
413 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
414 # / addr_bit will be set from it.
416 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
417 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
419 # ptr_bit is the size of a pointer on the target
420 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
421 # addr_bit is the size of a target address as represented in gdb
422 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
423 # Number of bits in a BFD_VMA for the target object file format.
424 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
426 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
427 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
429 f:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0
430 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
431 f:2:TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0
432 f:2:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0
433 f:2:TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0
434 # Function for getting target's idea of a frame pointer. FIXME: GDB's
435 # whole scheme for dealing with "frames" and "frame pointers" needs a
437 f:2:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0
439 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf:
440 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf:
442 v:2:NUM_REGS:int:num_regs::::0:-1
443 # This macro gives the number of pseudo-registers that live in the
444 # register namespace but do not get fetched or stored on the target.
445 # These pseudo-registers may be aliases for other registers,
446 # combinations of other registers, or they may be computed by GDB.
447 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
449 # GDB's standard (or well known) register numbers. These can map onto
450 # a real register or a pseudo (computed) register or not be defined at
452 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
453 v:2:FP_REGNUM:int:fp_regnum::::-1:-1::0
454 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
455 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
456 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
457 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0
458 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
459 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
460 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
461 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
462 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
463 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
464 # Convert from an sdb register number to an internal gdb register number.
465 # This should be defined in tm.h, if REGISTER_NAMES is not set up
466 # to map one to one onto the sdb register numbers.
467 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
468 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
469 f:2:REGISTER_NAME:const char *:register_name:int regnr:regnr:::legacy_register_name::0
470 v:2:REGISTER_SIZE:int:register_size::::0:-1
471 v:2:REGISTER_BYTES:int:register_bytes::::0:-1
472 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte::0
473 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
474 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1
475 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
476 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1
477 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0
479 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
480 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
481 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
482 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
483 # MAP a GDB RAW register number onto a simulator register number. See
484 # also include/...-sim.h.
485 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
486 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
487 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
488 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
489 # setjmp/longjmp support.
490 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
492 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
493 # much better but at least they are vaguely consistent). The headers
494 # and body contain convoluted #if/#else sequences for determine how
495 # things should be compiled. Instead of trying to mimic that
496 # behaviour here (and hence entrench it further) gdbarch simply
497 # reqires that these methods be set up from the word go. This also
498 # avoids any potential problems with moving beyond multi-arch partial.
499 v:1:DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0
500 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
501 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
502 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
503 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
504 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
505 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::gdbarch->call_dummy_length >= 0
506 # NOTE: cagney/2002-11-24: This function with predicate has a valid
507 # (callable) initial value. As a consequence, even when the predicate
508 # is false, the corresponding function works. This simplifies the
509 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
510 # doesn't need to be modified.
511 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
512 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
513 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
514 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
515 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
516 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
517 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
518 F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev
519 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
521 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
522 v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
523 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
525 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
526 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
527 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
529 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
530 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
531 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
533 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
534 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
535 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
537 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
538 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
539 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
540 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
541 F:2:POP_FRAME:void:pop_frame:void:-:::0
543 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
545 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
546 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
547 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
548 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
550 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
551 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
552 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
554 F:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame:::0
555 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
557 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
558 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
559 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
560 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
561 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
562 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
563 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
564 f:2:PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
565 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
567 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
569 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
570 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
571 F:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
572 F:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
573 F:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
574 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:get_frame_base::0
575 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:get_frame_base::0
576 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
577 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
579 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
580 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
581 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
582 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
583 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
584 v:2:PARM_BOUNDARY:int:parm_boundary
586 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
587 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
588 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
589 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
590 # On some machines there are bits in addresses which are not really
591 # part of the address, but are used by the kernel, the hardware, etc.
592 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
593 # we get a "real" address such as one would find in a symbol table.
594 # This is used only for addresses of instructions, and even then I'm
595 # not sure it's used in all contexts. It exists to deal with there
596 # being a few stray bits in the PC which would mislead us, not as some
597 # sort of generic thing to handle alignment or segmentation (it's
598 # possible it should be in TARGET_READ_PC instead).
599 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
600 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
602 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
603 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
604 # the target needs software single step. An ISA method to implement it.
606 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
607 # using the breakpoint system instead of blatting memory directly (as with rs6000).
609 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
610 # single step. If not, then implement single step using breakpoints.
611 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
612 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
613 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
616 # For SVR4 shared libraries, each call goes through a small piece of
617 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
618 # to nonzero if we are currently stopped in one of these.
619 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
621 # Some systems also have trampoline code for returning from shared libs.
622 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
624 # Sigtramp is a routine that the kernel calls (which then calls the
625 # signal handler). On most machines it is a library routine that is
626 # linked into the executable.
628 # This macro, given a program counter value and the name of the
629 # function in which that PC resides (which can be null if the name is
630 # not known), returns nonzero if the PC and name show that we are in
633 # On most machines just see if the name is sigtramp (and if we have
634 # no name, assume we are not in sigtramp).
636 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
637 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
638 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
639 # own local NAME lookup.
641 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
642 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
644 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
645 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
646 F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
647 # A target might have problems with watchpoints as soon as the stack
648 # frame of the current function has been destroyed. This mostly happens
649 # as the first action in a funtion's epilogue. in_function_epilogue_p()
650 # is defined to return a non-zero value if either the given addr is one
651 # instruction after the stack destroying instruction up to the trailing
652 # return instruction or if we can figure out that the stack frame has
653 # already been invalidated regardless of the value of addr. Targets
654 # which don't suffer from that problem could just let this functionality
656 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
657 # Given a vector of command-line arguments, return a newly allocated
658 # string which, when passed to the create_inferior function, will be
659 # parsed (on Unix systems, by the shell) to yield the same vector.
660 # This function should call error() if the argument vector is not
661 # representable for this target or if this target does not support
662 # command-line arguments.
663 # ARGC is the number of elements in the vector.
664 # ARGV is an array of strings, one per argument.
665 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
666 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
667 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
668 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
669 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
670 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
671 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
672 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
673 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags:
674 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
675 # Is a register in a group
676 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
683 exec > new-gdbarch.log
684 function_list |
while do_read
687 ${class} ${macro}(${actual})
688 ${returntype} ${function} ($formal)${attrib}
692 eval echo \"\ \ \ \
${r}=\
${${r}}\"
694 if class_is_predicate_p
&& fallback_default_p
696 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
700 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
702 echo "Error: postdefault is useless when invalid_p=0" 1>&2
706 if class_is_multiarch_p
708 if class_is_predicate_p
; then :
709 elif test "x${predefault}" = "x"
711 echo "Error: pure multi-arch function must have a predefault" 1>&2
720 compare_new gdbarch.log
726 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
728 /* Dynamic architecture support for GDB, the GNU debugger.
729 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
731 This file is part of GDB.
733 This program is free software; you can redistribute it and/or modify
734 it under the terms of the GNU General Public License as published by
735 the Free Software Foundation; either version 2 of the License, or
736 (at your option) any later version.
738 This program is distributed in the hope that it will be useful,
739 but WITHOUT ANY WARRANTY; without even the implied warranty of
740 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
741 GNU General Public License for more details.
743 You should have received a copy of the GNU General Public License
744 along with this program; if not, write to the Free Software
745 Foundation, Inc., 59 Temple Place - Suite 330,
746 Boston, MA 02111-1307, USA. */
748 /* This file was created with the aid of \`\`gdbarch.sh''.
750 The Bourne shell script \`\`gdbarch.sh'' creates the files
751 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
752 against the existing \`\`gdbarch.[hc]''. Any differences found
755 If editing this file, please also run gdbarch.sh and merge any
756 changes into that script. Conversely, when making sweeping changes
757 to this file, modifying gdbarch.sh and using its output may prove
773 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
775 /* Pull in function declarations refered to, indirectly, via macros. */
776 #include "inferior.h" /* For unsigned_address_to_pointer(). */
782 struct minimal_symbol;
786 extern struct gdbarch *current_gdbarch;
789 /* If any of the following are defined, the target wasn't correctly
793 #if defined (EXTRA_FRAME_INFO)
794 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
799 #if defined (FRAME_FIND_SAVED_REGS)
800 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
804 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
805 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
812 printf "/* The following are pre-initialized by GDBARCH. */\n"
813 function_list |
while do_read
818 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
819 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
820 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
821 printf "#error \"Non multi-arch definition of ${macro}\"\n"
823 printf "#if GDB_MULTI_ARCH\n"
824 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
825 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
834 printf "/* The following are initialized by the target dependent code. */\n"
835 function_list |
while do_read
837 if [ -n "${comment}" ]
839 echo "${comment}" |
sed \
844 if class_is_multiarch_p
846 if class_is_predicate_p
849 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
852 if class_is_predicate_p
855 printf "#if defined (${macro})\n"
856 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
857 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
858 printf "#if !defined (${macro}_P)\n"
859 printf "#define ${macro}_P() (1)\n"
863 printf "/* Default predicate for non- multi-arch targets. */\n"
864 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
865 printf "#define ${macro}_P() (0)\n"
868 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
869 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
870 printf "#error \"Non multi-arch definition of ${macro}\"\n"
872 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
873 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
877 if class_is_variable_p
879 if fallback_default_p || class_is_predicate_p
882 printf "/* Default (value) for non- multi-arch platforms. */\n"
883 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
884 echo "#define ${macro} (${fallbackdefault})" \
885 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
889 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
890 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
891 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
892 printf "#error \"Non multi-arch definition of ${macro}\"\n"
894 if test "${level}" = ""
896 printf "#if !defined (${macro})\n"
897 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
900 printf "#if GDB_MULTI_ARCH\n"
901 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
902 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
907 if class_is_function_p
909 if class_is_multiarch_p
; then :
910 elif fallback_default_p || class_is_predicate_p
913 printf "/* Default (function) for non- multi-arch platforms. */\n"
914 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
915 if [ "x${fallbackdefault}" = "x0" ]
917 if [ "x${actual}" = "x-" ]
919 printf "#define ${macro} (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
920 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
922 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
925 # FIXME: Should be passing current_gdbarch through!
926 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
927 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
932 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
934 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
935 elif class_is_multiarch_p
937 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
939 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
941 if [ "x${formal}" = "xvoid" ]
943 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
945 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
947 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
948 if class_is_multiarch_p
; then :
950 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
951 printf "#error \"Non multi-arch definition of ${macro}\"\n"
953 printf "#if GDB_MULTI_ARCH\n"
954 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
955 if [ "x${actual}" = "x" ]
957 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
958 elif [ "x${actual}" = "x-" ]
960 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
962 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
973 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
976 /* Mechanism for co-ordinating the selection of a specific
979 GDB targets (*-tdep.c) can register an interest in a specific
980 architecture. Other GDB components can register a need to maintain
981 per-architecture data.
983 The mechanisms below ensures that there is only a loose connection
984 between the set-architecture command and the various GDB
985 components. Each component can independently register their need
986 to maintain architecture specific data with gdbarch.
990 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
993 The more traditional mega-struct containing architecture specific
994 data for all the various GDB components was also considered. Since
995 GDB is built from a variable number of (fairly independent)
996 components it was determined that the global aproach was not
1000 /* Register a new architectural family with GDB.
1002 Register support for the specified ARCHITECTURE with GDB. When
1003 gdbarch determines that the specified architecture has been
1004 selected, the corresponding INIT function is called.
1008 The INIT function takes two parameters: INFO which contains the
1009 information available to gdbarch about the (possibly new)
1010 architecture; ARCHES which is a list of the previously created
1011 \`\`struct gdbarch'' for this architecture.
1013 The INFO parameter is, as far as possible, be pre-initialized with
1014 information obtained from INFO.ABFD or the previously selected
1017 The ARCHES parameter is a linked list (sorted most recently used)
1018 of all the previously created architures for this architecture
1019 family. The (possibly NULL) ARCHES->gdbarch can used to access
1020 values from the previously selected architecture for this
1021 architecture family. The global \`\`current_gdbarch'' shall not be
1024 The INIT function shall return any of: NULL - indicating that it
1025 doesn't recognize the selected architecture; an existing \`\`struct
1026 gdbarch'' from the ARCHES list - indicating that the new
1027 architecture is just a synonym for an earlier architecture (see
1028 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1029 - that describes the selected architecture (see gdbarch_alloc()).
1031 The DUMP_TDEP function shall print out all target specific values.
1032 Care should be taken to ensure that the function works in both the
1033 multi-arch and non- multi-arch cases. */
1037 struct gdbarch *gdbarch;
1038 struct gdbarch_list *next;
1043 /* Use default: NULL (ZERO). */
1044 const struct bfd_arch_info *bfd_arch_info;
1046 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1049 /* Use default: NULL (ZERO). */
1052 /* Use default: NULL (ZERO). */
1053 struct gdbarch_tdep_info *tdep_info;
1055 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1056 enum gdb_osabi osabi;
1059 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1060 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1062 /* DEPRECATED - use gdbarch_register() */
1063 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1065 extern void gdbarch_register (enum bfd_architecture architecture,
1066 gdbarch_init_ftype *,
1067 gdbarch_dump_tdep_ftype *);
1070 /* Return a freshly allocated, NULL terminated, array of the valid
1071 architecture names. Since architectures are registered during the
1072 _initialize phase this function only returns useful information
1073 once initialization has been completed. */
1075 extern const char **gdbarch_printable_names (void);
1078 /* Helper function. Search the list of ARCHES for a GDBARCH that
1079 matches the information provided by INFO. */
1081 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1084 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1085 basic initialization using values obtained from the INFO andTDEP
1086 parameters. set_gdbarch_*() functions are called to complete the
1087 initialization of the object. */
1089 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1092 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1093 It is assumed that the caller freeds the \`\`struct
1096 extern void gdbarch_free (struct gdbarch *);
1099 /* Helper function. Force an update of the current architecture.
1101 The actual architecture selected is determined by INFO, \`\`(gdb) set
1102 architecture'' et.al., the existing architecture and BFD's default
1103 architecture. INFO should be initialized to zero and then selected
1104 fields should be updated.
1106 Returns non-zero if the update succeeds */
1108 extern int gdbarch_update_p (struct gdbarch_info info);
1112 /* Register per-architecture data-pointer.
1114 Reserve space for a per-architecture data-pointer. An identifier
1115 for the reserved data-pointer is returned. That identifer should
1116 be saved in a local static variable.
1118 The per-architecture data-pointer is either initialized explicitly
1119 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1120 gdbarch_data()). FREE() is called to delete either an existing
1121 data-pointer overridden by set_gdbarch_data() or when the
1122 architecture object is being deleted.
1124 When a previously created architecture is re-selected, the
1125 per-architecture data-pointer for that previous architecture is
1126 restored. INIT() is not re-called.
1128 Multiple registrarants for any architecture are allowed (and
1129 strongly encouraged). */
1131 struct gdbarch_data;
1133 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1134 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1136 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1137 gdbarch_data_free_ftype *free);
1138 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1139 struct gdbarch_data *data,
1142 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1145 /* Register per-architecture memory region.
1147 Provide a memory-region swap mechanism. Per-architecture memory
1148 region are created. These memory regions are swapped whenever the
1149 architecture is changed. For a new architecture, the memory region
1150 is initialized with zero (0) and the INIT function is called.
1152 Memory regions are swapped / initialized in the order that they are
1153 registered. NULL DATA and/or INIT values can be specified.
1155 New code should use register_gdbarch_data(). */
1157 typedef void (gdbarch_swap_ftype) (void);
1158 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1159 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1163 /* The target-system-dependent byte order is dynamic */
1165 extern int target_byte_order;
1166 #ifndef TARGET_BYTE_ORDER
1167 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1170 extern int target_byte_order_auto;
1171 #ifndef TARGET_BYTE_ORDER_AUTO
1172 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1177 /* The target-system-dependent BFD architecture is dynamic */
1179 extern int target_architecture_auto;
1180 #ifndef TARGET_ARCHITECTURE_AUTO
1181 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1184 extern const struct bfd_arch_info *target_architecture;
1185 #ifndef TARGET_ARCHITECTURE
1186 #define TARGET_ARCHITECTURE (target_architecture + 0)
1190 /* The target-system-dependent disassembler is semi-dynamic */
1192 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1193 unsigned int len, disassemble_info *info);
1195 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1196 disassemble_info *info);
1198 extern void dis_asm_print_address (bfd_vma addr,
1199 disassemble_info *info);
1201 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1202 extern disassemble_info tm_print_insn_info;
1203 #ifndef TARGET_PRINT_INSN_INFO
1204 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1209 /* Set the dynamic target-system-dependent parameters (architecture,
1210 byte-order, ...) using information found in the BFD */
1212 extern void set_gdbarch_from_file (bfd *);
1215 /* Initialize the current architecture to the "first" one we find on
1218 extern void initialize_current_architecture (void);
1220 /* For non-multiarched targets, do any initialization of the default
1221 gdbarch object necessary after the _initialize_MODULE functions
1223 extern void initialize_non_multiarch (void);
1225 /* gdbarch trace variable */
1226 extern int gdbarch_debug;
1228 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1233 #../move-if-change new-gdbarch.h gdbarch.h
1234 compare_new gdbarch.h
1241 exec > new-gdbarch.c
1246 #include "arch-utils.h"
1250 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1252 /* Just include everything in sight so that the every old definition
1253 of macro is visible. */
1254 #include "gdb_string.h"
1258 #include "inferior.h"
1259 #include "breakpoint.h"
1260 #include "gdb_wait.h"
1261 #include "gdbcore.h"
1264 #include "gdbthread.h"
1265 #include "annotate.h"
1266 #include "symfile.h" /* for overlay functions */
1267 #include "value.h" /* For old tm.h/nm.h macros. */
1271 #include "floatformat.h"
1273 #include "gdb_assert.h"
1274 #include "gdb_string.h"
1275 #include "gdb-events.h"
1276 #include "reggroups.h"
1279 /* Static function declarations */
1281 static void verify_gdbarch (struct gdbarch *gdbarch);
1282 static void alloc_gdbarch_data (struct gdbarch *);
1283 static void free_gdbarch_data (struct gdbarch *);
1284 static void init_gdbarch_swap (struct gdbarch *);
1285 static void clear_gdbarch_swap (struct gdbarch *);
1286 static void swapout_gdbarch_swap (struct gdbarch *);
1287 static void swapin_gdbarch_swap (struct gdbarch *);
1289 /* Non-zero if we want to trace architecture code. */
1291 #ifndef GDBARCH_DEBUG
1292 #define GDBARCH_DEBUG 0
1294 int gdbarch_debug = GDBARCH_DEBUG;
1298 # gdbarch open the gdbarch object
1300 printf "/* Maintain the struct gdbarch object */\n"
1302 printf "struct gdbarch\n"
1304 printf " /* Has this architecture been fully initialized? */\n"
1305 printf " int initialized_p;\n"
1306 printf " /* basic architectural information */\n"
1307 function_list |
while do_read
1311 printf " ${returntype} ${function};\n"
1315 printf " /* target specific vector. */\n"
1316 printf " struct gdbarch_tdep *tdep;\n"
1317 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1319 printf " /* per-architecture data-pointers */\n"
1320 printf " unsigned nr_data;\n"
1321 printf " void **data;\n"
1323 printf " /* per-architecture swap-regions */\n"
1324 printf " struct gdbarch_swap *swap;\n"
1327 /* Multi-arch values.
1329 When extending this structure you must:
1331 Add the field below.
1333 Declare set/get functions and define the corresponding
1336 gdbarch_alloc(): If zero/NULL is not a suitable default,
1337 initialize the new field.
1339 verify_gdbarch(): Confirm that the target updated the field
1342 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1345 \`\`startup_gdbarch()'': Append an initial value to the static
1346 variable (base values on the host's c-type system).
1348 get_gdbarch(): Implement the set/get functions (probably using
1349 the macro's as shortcuts).
1354 function_list |
while do_read
1356 if class_is_variable_p
1358 printf " ${returntype} ${function};\n"
1359 elif class_is_function_p
1361 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1366 # A pre-initialized vector
1370 /* The default architecture uses host values (for want of a better
1374 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1376 printf "struct gdbarch startup_gdbarch =\n"
1378 printf " 1, /* Always initialized. */\n"
1379 printf " /* basic architecture information */\n"
1380 function_list |
while do_read
1384 printf " ${staticdefault},\n"
1388 /* target specific vector and its dump routine */
1390 /*per-architecture data-pointers and swap regions */
1392 /* Multi-arch values */
1394 function_list |
while do_read
1396 if class_is_function_p || class_is_variable_p
1398 printf " ${staticdefault},\n"
1402 /* startup_gdbarch() */
1405 struct gdbarch *current_gdbarch = &startup_gdbarch;
1407 /* Do any initialization needed for a non-multiarch configuration
1408 after the _initialize_MODULE functions have been run. */
1410 initialize_non_multiarch (void)
1412 alloc_gdbarch_data (&startup_gdbarch);
1413 /* Ensure that all swap areas are zeroed so that they again think
1414 they are starting from scratch. */
1415 clear_gdbarch_swap (&startup_gdbarch);
1416 init_gdbarch_swap (&startup_gdbarch);
1420 # Create a new gdbarch struct
1424 /* Create a new \`\`struct gdbarch'' based on information provided by
1425 \`\`struct gdbarch_info''. */
1430 gdbarch_alloc (const struct gdbarch_info *info,
1431 struct gdbarch_tdep *tdep)
1433 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1434 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1435 the current local architecture and not the previous global
1436 architecture. This ensures that the new architectures initial
1437 values are not influenced by the previous architecture. Once
1438 everything is parameterised with gdbarch, this will go away. */
1439 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1440 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1442 alloc_gdbarch_data (current_gdbarch);
1444 current_gdbarch->tdep = tdep;
1447 function_list |
while do_read
1451 printf " current_gdbarch->${function} = info->${function};\n"
1455 printf " /* Force the explicit initialization of these. */\n"
1456 function_list |
while do_read
1458 if class_is_function_p || class_is_variable_p
1460 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1462 printf " current_gdbarch->${function} = ${predefault};\n"
1467 /* gdbarch_alloc() */
1469 return current_gdbarch;
1473 # Free a gdbarch struct.
1477 /* Free a gdbarch struct. This should never happen in normal
1478 operation --- once you've created a gdbarch, you keep it around.
1479 However, if an architecture's init function encounters an error
1480 building the structure, it may need to clean up a partially
1481 constructed gdbarch. */
1484 gdbarch_free (struct gdbarch *arch)
1486 gdb_assert (arch != NULL);
1487 free_gdbarch_data (arch);
1492 # verify a new architecture
1495 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1499 verify_gdbarch (struct gdbarch *gdbarch)
1501 struct ui_file *log;
1502 struct cleanup *cleanups;
1505 /* Only perform sanity checks on a multi-arch target. */
1506 if (!GDB_MULTI_ARCH)
1508 log = mem_fileopen ();
1509 cleanups = make_cleanup_ui_file_delete (log);
1511 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1512 fprintf_unfiltered (log, "\n\tbyte-order");
1513 if (gdbarch->bfd_arch_info == NULL)
1514 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1515 /* Check those that need to be defined for the given multi-arch level. */
1517 function_list |
while do_read
1519 if class_is_function_p || class_is_variable_p
1521 if [ "x${invalid_p}" = "x0" ]
1523 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1524 elif class_is_predicate_p
1526 printf " /* Skip verify of ${function}, has predicate */\n"
1527 # FIXME: See do_read for potential simplification
1528 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1530 printf " if (${invalid_p})\n"
1531 printf " gdbarch->${function} = ${postdefault};\n"
1532 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1534 printf " if (gdbarch->${function} == ${predefault})\n"
1535 printf " gdbarch->${function} = ${postdefault};\n"
1536 elif [ -n "${postdefault}" ]
1538 printf " if (gdbarch->${function} == 0)\n"
1539 printf " gdbarch->${function} = ${postdefault};\n"
1540 elif [ -n "${invalid_p}" ]
1542 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1543 printf " && (${invalid_p}))\n"
1544 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1545 elif [ -n "${predefault}" ]
1547 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1548 printf " && (gdbarch->${function} == ${predefault}))\n"
1549 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1554 buf = ui_file_xstrdup (log, &dummy);
1555 make_cleanup (xfree, buf);
1556 if (strlen (buf) > 0)
1557 internal_error (__FILE__, __LINE__,
1558 "verify_gdbarch: the following are invalid ...%s",
1560 do_cleanups (cleanups);
1564 # dump the structure
1568 /* Print out the details of the current architecture. */
1570 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1571 just happens to match the global variable \`\`current_gdbarch''. That
1572 way macros refering to that variable get the local and not the global
1573 version - ulgh. Once everything is parameterised with gdbarch, this
1577 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1579 fprintf_unfiltered (file,
1580 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1583 function_list |
sort -t: -k 3 |
while do_read
1585 # First the predicate
1586 if class_is_predicate_p
1588 if class_is_multiarch_p
1590 printf " if (GDB_MULTI_ARCH)\n"
1591 printf " fprintf_unfiltered (file,\n"
1592 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1593 printf " gdbarch_${function}_p (current_gdbarch));\n"
1595 printf "#ifdef ${macro}_P\n"
1596 printf " fprintf_unfiltered (file,\n"
1597 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1598 printf " \"${macro}_P()\",\n"
1599 printf " XSTRING (${macro}_P ()));\n"
1600 printf " fprintf_unfiltered (file,\n"
1601 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1602 printf " ${macro}_P ());\n"
1606 # multiarch functions don't have macros.
1607 if class_is_multiarch_p
1609 printf " if (GDB_MULTI_ARCH)\n"
1610 printf " fprintf_unfiltered (file,\n"
1611 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1612 printf " (long) current_gdbarch->${function});\n"
1615 # Print the macro definition.
1616 printf "#ifdef ${macro}\n"
1617 if [ "x${returntype}" = "xvoid" ]
1619 printf "#if GDB_MULTI_ARCH\n"
1620 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1622 if class_is_function_p
1624 printf " fprintf_unfiltered (file,\n"
1625 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1626 printf " \"${macro}(${actual})\",\n"
1627 printf " XSTRING (${macro} (${actual})));\n"
1629 printf " fprintf_unfiltered (file,\n"
1630 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1631 printf " XSTRING (${macro}));\n"
1633 # Print the architecture vector value
1634 if [ "x${returntype}" = "xvoid" ]
1638 if [ "x${print_p}" = "x()" ]
1640 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1641 elif [ "x${print_p}" = "x0" ]
1643 printf " /* skip print of ${macro}, print_p == 0. */\n"
1644 elif [ -n "${print_p}" ]
1646 printf " if (${print_p})\n"
1647 printf " fprintf_unfiltered (file,\n"
1648 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1649 printf " ${print});\n"
1650 elif class_is_function_p
1652 printf " if (GDB_MULTI_ARCH)\n"
1653 printf " fprintf_unfiltered (file,\n"
1654 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1655 printf " (long) current_gdbarch->${function}\n"
1656 printf " /*${macro} ()*/);\n"
1658 printf " fprintf_unfiltered (file,\n"
1659 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1660 printf " ${print});\n"
1665 if (current_gdbarch->dump_tdep != NULL)
1666 current_gdbarch->dump_tdep (current_gdbarch, file);
1674 struct gdbarch_tdep *
1675 gdbarch_tdep (struct gdbarch *gdbarch)
1677 if (gdbarch_debug >= 2)
1678 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1679 return gdbarch->tdep;
1683 function_list |
while do_read
1685 if class_is_predicate_p
1689 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1691 printf " gdb_assert (gdbarch != NULL);\n"
1692 if [ -n "${predicate}" ]
1694 printf " return ${predicate};\n"
1696 printf " return gdbarch->${function} != 0;\n"
1700 if class_is_function_p
1703 printf "${returntype}\n"
1704 if [ "x${formal}" = "xvoid" ]
1706 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1708 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1711 printf " gdb_assert (gdbarch != NULL);\n"
1712 printf " if (gdbarch->${function} == 0)\n"
1713 printf " internal_error (__FILE__, __LINE__,\n"
1714 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1715 if class_is_predicate_p
&& test -n "${predicate}"
1717 # Allow a call to a function with a predicate.
1718 printf " /* Ignore predicate (${predicate}). */\n"
1720 printf " if (gdbarch_debug >= 2)\n"
1721 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1722 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1724 if class_is_multiarch_p
1731 if class_is_multiarch_p
1733 params
="gdbarch, ${actual}"
1738 if [ "x${returntype}" = "xvoid" ]
1740 printf " gdbarch->${function} (${params});\n"
1742 printf " return gdbarch->${function} (${params});\n"
1747 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1748 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1750 printf " gdbarch->${function} = ${function};\n"
1752 elif class_is_variable_p
1755 printf "${returntype}\n"
1756 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1758 printf " gdb_assert (gdbarch != NULL);\n"
1759 if [ "x${invalid_p}" = "x0" ]
1761 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1762 elif [ -n "${invalid_p}" ]
1764 printf " if (${invalid_p})\n"
1765 printf " internal_error (__FILE__, __LINE__,\n"
1766 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1767 elif [ -n "${predefault}" ]
1769 printf " if (gdbarch->${function} == ${predefault})\n"
1770 printf " internal_error (__FILE__, __LINE__,\n"
1771 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1773 printf " if (gdbarch_debug >= 2)\n"
1774 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1775 printf " return gdbarch->${function};\n"
1779 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1780 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1782 printf " gdbarch->${function} = ${function};\n"
1784 elif class_is_info_p
1787 printf "${returntype}\n"
1788 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1790 printf " gdb_assert (gdbarch != NULL);\n"
1791 printf " if (gdbarch_debug >= 2)\n"
1792 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1793 printf " return gdbarch->${function};\n"
1798 # All the trailing guff
1802 /* Keep a registry of per-architecture data-pointers required by GDB
1809 gdbarch_data_init_ftype *init;
1810 gdbarch_data_free_ftype *free;
1813 struct gdbarch_data_registration
1815 struct gdbarch_data *data;
1816 struct gdbarch_data_registration *next;
1819 struct gdbarch_data_registry
1822 struct gdbarch_data_registration *registrations;
1825 struct gdbarch_data_registry gdbarch_data_registry =
1830 struct gdbarch_data *
1831 register_gdbarch_data (gdbarch_data_init_ftype *init,
1832 gdbarch_data_free_ftype *free)
1834 struct gdbarch_data_registration **curr;
1835 /* Append the new registraration. */
1836 for (curr = &gdbarch_data_registry.registrations;
1838 curr = &(*curr)->next);
1839 (*curr) = XMALLOC (struct gdbarch_data_registration);
1840 (*curr)->next = NULL;
1841 (*curr)->data = XMALLOC (struct gdbarch_data);
1842 (*curr)->data->index = gdbarch_data_registry.nr++;
1843 (*curr)->data->init = init;
1844 (*curr)->data->init_p = 1;
1845 (*curr)->data->free = free;
1846 return (*curr)->data;
1850 /* Create/delete the gdbarch data vector. */
1853 alloc_gdbarch_data (struct gdbarch *gdbarch)
1855 gdb_assert (gdbarch->data == NULL);
1856 gdbarch->nr_data = gdbarch_data_registry.nr;
1857 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1861 free_gdbarch_data (struct gdbarch *gdbarch)
1863 struct gdbarch_data_registration *rego;
1864 gdb_assert (gdbarch->data != NULL);
1865 for (rego = gdbarch_data_registry.registrations;
1869 struct gdbarch_data *data = rego->data;
1870 gdb_assert (data->index < gdbarch->nr_data);
1871 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1873 data->free (gdbarch, gdbarch->data[data->index]);
1874 gdbarch->data[data->index] = NULL;
1877 xfree (gdbarch->data);
1878 gdbarch->data = NULL;
1882 /* Initialize the current value of the specified per-architecture
1886 set_gdbarch_data (struct gdbarch *gdbarch,
1887 struct gdbarch_data *data,
1890 gdb_assert (data->index < gdbarch->nr_data);
1891 if (gdbarch->data[data->index] != NULL)
1893 gdb_assert (data->free != NULL);
1894 data->free (gdbarch, gdbarch->data[data->index]);
1896 gdbarch->data[data->index] = pointer;
1899 /* Return the current value of the specified per-architecture
1903 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1905 gdb_assert (data->index < gdbarch->nr_data);
1906 /* The data-pointer isn't initialized, call init() to get a value but
1907 only if the architecture initializaiton has completed. Otherwise
1908 punt - hope that the caller knows what they are doing. */
1909 if (gdbarch->data[data->index] == NULL
1910 && gdbarch->initialized_p)
1912 /* Be careful to detect an initialization cycle. */
1913 gdb_assert (data->init_p);
1915 gdb_assert (data->init != NULL);
1916 gdbarch->data[data->index] = data->init (gdbarch);
1918 gdb_assert (gdbarch->data[data->index] != NULL);
1920 return gdbarch->data[data->index];
1925 /* Keep a registry of swapped data required by GDB modules. */
1930 struct gdbarch_swap_registration *source;
1931 struct gdbarch_swap *next;
1934 struct gdbarch_swap_registration
1937 unsigned long sizeof_data;
1938 gdbarch_swap_ftype *init;
1939 struct gdbarch_swap_registration *next;
1942 struct gdbarch_swap_registry
1945 struct gdbarch_swap_registration *registrations;
1948 struct gdbarch_swap_registry gdbarch_swap_registry =
1954 register_gdbarch_swap (void *data,
1955 unsigned long sizeof_data,
1956 gdbarch_swap_ftype *init)
1958 struct gdbarch_swap_registration **rego;
1959 for (rego = &gdbarch_swap_registry.registrations;
1961 rego = &(*rego)->next);
1962 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1963 (*rego)->next = NULL;
1964 (*rego)->init = init;
1965 (*rego)->data = data;
1966 (*rego)->sizeof_data = sizeof_data;
1970 clear_gdbarch_swap (struct gdbarch *gdbarch)
1972 struct gdbarch_swap *curr;
1973 for (curr = gdbarch->swap;
1977 memset (curr->source->data, 0, curr->source->sizeof_data);
1982 init_gdbarch_swap (struct gdbarch *gdbarch)
1984 struct gdbarch_swap_registration *rego;
1985 struct gdbarch_swap **curr = &gdbarch->swap;
1986 for (rego = gdbarch_swap_registry.registrations;
1990 if (rego->data != NULL)
1992 (*curr) = XMALLOC (struct gdbarch_swap);
1993 (*curr)->source = rego;
1994 (*curr)->swap = xmalloc (rego->sizeof_data);
1995 (*curr)->next = NULL;
1996 curr = &(*curr)->next;
1998 if (rego->init != NULL)
2004 swapout_gdbarch_swap (struct gdbarch *gdbarch)
2006 struct gdbarch_swap *curr;
2007 for (curr = gdbarch->swap;
2010 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
2014 swapin_gdbarch_swap (struct gdbarch *gdbarch)
2016 struct gdbarch_swap *curr;
2017 for (curr = gdbarch->swap;
2020 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
2024 /* Keep a registry of the architectures known by GDB. */
2026 struct gdbarch_registration
2028 enum bfd_architecture bfd_architecture;
2029 gdbarch_init_ftype *init;
2030 gdbarch_dump_tdep_ftype *dump_tdep;
2031 struct gdbarch_list *arches;
2032 struct gdbarch_registration *next;
2035 static struct gdbarch_registration *gdbarch_registry = NULL;
2038 append_name (const char ***buf, int *nr, const char *name)
2040 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2046 gdbarch_printable_names (void)
2050 /* Accumulate a list of names based on the registed list of
2052 enum bfd_architecture a;
2054 const char **arches = NULL;
2055 struct gdbarch_registration *rego;
2056 for (rego = gdbarch_registry;
2060 const struct bfd_arch_info *ap;
2061 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2063 internal_error (__FILE__, __LINE__,
2064 "gdbarch_architecture_names: multi-arch unknown");
2067 append_name (&arches, &nr_arches, ap->printable_name);
2072 append_name (&arches, &nr_arches, NULL);
2076 /* Just return all the architectures that BFD knows. Assume that
2077 the legacy architecture framework supports them. */
2078 return bfd_arch_list ();
2083 gdbarch_register (enum bfd_architecture bfd_architecture,
2084 gdbarch_init_ftype *init,
2085 gdbarch_dump_tdep_ftype *dump_tdep)
2087 struct gdbarch_registration **curr;
2088 const struct bfd_arch_info *bfd_arch_info;
2089 /* Check that BFD recognizes this architecture */
2090 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2091 if (bfd_arch_info == NULL)
2093 internal_error (__FILE__, __LINE__,
2094 "gdbarch: Attempt to register unknown architecture (%d)",
2097 /* Check that we haven't seen this architecture before */
2098 for (curr = &gdbarch_registry;
2100 curr = &(*curr)->next)
2102 if (bfd_architecture == (*curr)->bfd_architecture)
2103 internal_error (__FILE__, __LINE__,
2104 "gdbarch: Duplicate registraration of architecture (%s)",
2105 bfd_arch_info->printable_name);
2109 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2110 bfd_arch_info->printable_name,
2113 (*curr) = XMALLOC (struct gdbarch_registration);
2114 (*curr)->bfd_architecture = bfd_architecture;
2115 (*curr)->init = init;
2116 (*curr)->dump_tdep = dump_tdep;
2117 (*curr)->arches = NULL;
2118 (*curr)->next = NULL;
2119 /* When non- multi-arch, install whatever target dump routine we've
2120 been provided - hopefully that routine has been written correctly
2121 and works regardless of multi-arch. */
2122 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2123 && startup_gdbarch.dump_tdep == NULL)
2124 startup_gdbarch.dump_tdep = dump_tdep;
2128 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2129 gdbarch_init_ftype *init)
2131 gdbarch_register (bfd_architecture, init, NULL);
2135 /* Look for an architecture using gdbarch_info. Base search on only
2136 BFD_ARCH_INFO and BYTE_ORDER. */
2138 struct gdbarch_list *
2139 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2140 const struct gdbarch_info *info)
2142 for (; arches != NULL; arches = arches->next)
2144 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2146 if (info->byte_order != arches->gdbarch->byte_order)
2148 if (info->osabi != arches->gdbarch->osabi)
2156 /* Update the current architecture. Return ZERO if the update request
2160 gdbarch_update_p (struct gdbarch_info info)
2162 struct gdbarch *new_gdbarch;
2163 struct gdbarch *old_gdbarch;
2164 struct gdbarch_registration *rego;
2166 /* Fill in missing parts of the INFO struct using a number of
2167 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2169 /* \`\`(gdb) set architecture ...'' */
2170 if (info.bfd_arch_info == NULL
2171 && !TARGET_ARCHITECTURE_AUTO)
2172 info.bfd_arch_info = TARGET_ARCHITECTURE;
2173 if (info.bfd_arch_info == NULL
2174 && info.abfd != NULL
2175 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2176 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2177 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2178 if (info.bfd_arch_info == NULL)
2179 info.bfd_arch_info = TARGET_ARCHITECTURE;
2181 /* \`\`(gdb) set byte-order ...'' */
2182 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2183 && !TARGET_BYTE_ORDER_AUTO)
2184 info.byte_order = TARGET_BYTE_ORDER;
2185 /* From the INFO struct. */
2186 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2187 && info.abfd != NULL)
2188 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2189 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2190 : BFD_ENDIAN_UNKNOWN);
2191 /* From the current target. */
2192 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2193 info.byte_order = TARGET_BYTE_ORDER;
2195 /* \`\`(gdb) set osabi ...'' is handled by gdbarch_lookup_osabi. */
2196 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2197 info.osabi = gdbarch_lookup_osabi (info.abfd);
2198 if (info.osabi == GDB_OSABI_UNINITIALIZED)
2199 info.osabi = current_gdbarch->osabi;
2201 /* Must have found some sort of architecture. */
2202 gdb_assert (info.bfd_arch_info != NULL);
2206 fprintf_unfiltered (gdb_stdlog,
2207 "gdbarch_update: info.bfd_arch_info %s\n",
2208 (info.bfd_arch_info != NULL
2209 ? info.bfd_arch_info->printable_name
2211 fprintf_unfiltered (gdb_stdlog,
2212 "gdbarch_update: info.byte_order %d (%s)\n",
2214 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2215 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2217 fprintf_unfiltered (gdb_stdlog,
2218 "gdbarch_update: info.osabi %d (%s)\n",
2219 info.osabi, gdbarch_osabi_name (info.osabi));
2220 fprintf_unfiltered (gdb_stdlog,
2221 "gdbarch_update: info.abfd 0x%lx\n",
2223 fprintf_unfiltered (gdb_stdlog,
2224 "gdbarch_update: info.tdep_info 0x%lx\n",
2225 (long) info.tdep_info);
2228 /* Find the target that knows about this architecture. */
2229 for (rego = gdbarch_registry;
2232 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2237 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2241 /* Swap the data belonging to the old target out setting the
2242 installed data to zero. This stops the ->init() function trying
2243 to refer to the previous architecture's global data structures. */
2244 swapout_gdbarch_swap (current_gdbarch);
2245 clear_gdbarch_swap (current_gdbarch);
2247 /* Save the previously selected architecture, setting the global to
2248 NULL. This stops ->init() trying to use the previous
2249 architecture's configuration. The previous architecture may not
2250 even be of the same architecture family. The most recent
2251 architecture of the same family is found at the head of the
2252 rego->arches list. */
2253 old_gdbarch = current_gdbarch;
2254 current_gdbarch = NULL;
2256 /* Ask the target for a replacement architecture. */
2257 new_gdbarch = rego->init (info, rego->arches);
2259 /* Did the target like it? No. Reject the change and revert to the
2260 old architecture. */
2261 if (new_gdbarch == NULL)
2264 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2265 swapin_gdbarch_swap (old_gdbarch);
2266 current_gdbarch = old_gdbarch;
2270 /* Did the architecture change? No. Oops, put the old architecture
2272 if (old_gdbarch == new_gdbarch)
2275 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2277 new_gdbarch->bfd_arch_info->printable_name);
2278 swapin_gdbarch_swap (old_gdbarch);
2279 current_gdbarch = old_gdbarch;
2283 /* Is this a pre-existing architecture? Yes. Move it to the front
2284 of the list of architectures (keeping the list sorted Most
2285 Recently Used) and then copy it in. */
2287 struct gdbarch_list **list;
2288 for (list = ®o->arches;
2290 list = &(*list)->next)
2292 if ((*list)->gdbarch == new_gdbarch)
2294 struct gdbarch_list *this;
2296 fprintf_unfiltered (gdb_stdlog,
2297 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2299 new_gdbarch->bfd_arch_info->printable_name);
2302 (*list) = this->next;
2303 /* Insert in the front. */
2304 this->next = rego->arches;
2305 rego->arches = this;
2306 /* Copy the new architecture in. */
2307 current_gdbarch = new_gdbarch;
2308 swapin_gdbarch_swap (new_gdbarch);
2309 architecture_changed_event ();
2315 /* Prepend this new architecture to the architecture list (keep the
2316 list sorted Most Recently Used). */
2318 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2319 this->next = rego->arches;
2320 this->gdbarch = new_gdbarch;
2321 rego->arches = this;
2324 /* Switch to this new architecture marking it initialized. */
2325 current_gdbarch = new_gdbarch;
2326 current_gdbarch->initialized_p = 1;
2329 fprintf_unfiltered (gdb_stdlog,
2330 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2332 new_gdbarch->bfd_arch_info->printable_name);
2335 /* Check that the newly installed architecture is valid. Plug in
2336 any post init values. */
2337 new_gdbarch->dump_tdep = rego->dump_tdep;
2338 verify_gdbarch (new_gdbarch);
2340 /* Initialize the per-architecture memory (swap) areas.
2341 CURRENT_GDBARCH must be update before these modules are
2343 init_gdbarch_swap (new_gdbarch);
2345 /* Initialize the per-architecture data. CURRENT_GDBARCH
2346 must be updated before these modules are called. */
2347 architecture_changed_event ();
2350 gdbarch_dump (current_gdbarch, gdb_stdlog);
2358 /* Pointer to the target-dependent disassembly function. */
2359 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2360 disassemble_info tm_print_insn_info;
2363 extern void _initialize_gdbarch (void);
2366 _initialize_gdbarch (void)
2368 struct cmd_list_element *c;
2370 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2371 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2372 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2373 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2374 tm_print_insn_info.print_address_func = dis_asm_print_address;
2376 add_show_from_set (add_set_cmd ("arch",
2379 (char *)&gdbarch_debug,
2380 "Set architecture debugging.\\n\\
2381 When non-zero, architecture debugging is enabled.", &setdebuglist),
2383 c = add_set_cmd ("archdebug",
2386 (char *)&gdbarch_debug,
2387 "Set architecture debugging.\\n\\
2388 When non-zero, architecture debugging is enabled.", &setlist);
2390 deprecate_cmd (c, "set debug arch");
2391 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2397 #../move-if-change new-gdbarch.c gdbarch.c
2398 compare_new gdbarch.c