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
471 F:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
472 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
473 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
474 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
475 # MAP a GDB RAW register number onto a simulator register number. See
476 # also include/...-sim.h.
477 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
478 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0
479 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
480 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
481 # setjmp/longjmp support.
482 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0
484 # Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that
485 # much better but at least they are vaguely consistent). The headers
486 # and body contain convoluted #if/#else sequences for determine how
487 # things should be compiled. Instead of trying to mimic that
488 # behaviour here (and hence entrench it further) gdbarch simply
489 # reqires that these methods be set up from the word go. This also
490 # avoids any potential problems with moving beyond multi-arch partial.
491 v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1
492 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0
493 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
494 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx
495 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
496 v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1
497 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END
498 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
499 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1
500 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
501 v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx
502 v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx
503 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
504 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
505 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0
506 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0
508 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
509 v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type:::::::
510 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
511 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
513 f:2:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0
514 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
515 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
517 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum:regnum::0:legacy_convert_register_p::0
518 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
519 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
521 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0
522 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
523 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
525 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
526 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
527 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0
528 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
529 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
530 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
531 f:2:POP_FRAME:void:pop_frame:void:-:::0
533 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
534 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0
535 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
536 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
537 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
539 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
540 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
542 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
543 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
544 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
545 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
546 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
547 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
548 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
549 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
550 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
552 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
554 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
555 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
556 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
557 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
558 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
559 # given frame is the outermost one and has no caller.
561 # XXXX - both default and alternate frame_chain_valid functions are
562 # deprecated. New code should use dummy frames and one of the generic
564 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::generic_func_frame_chain_valid::0
565 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
566 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
567 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
568 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
569 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
571 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
572 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
573 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
574 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
575 v:2:PARM_BOUNDARY:int:parm_boundary
577 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
578 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
579 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
580 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
581 # On some machines there are bits in addresses which are not really
582 # part of the address, but are used by the kernel, the hardware, etc.
583 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
584 # we get a "real" address such as one would find in a symbol table.
585 # This is used only for addresses of instructions, and even then I'm
586 # not sure it's used in all contexts. It exists to deal with there
587 # being a few stray bits in the PC which would mislead us, not as some
588 # sort of generic thing to handle alignment or segmentation (it's
589 # possible it should be in TARGET_READ_PC instead).
590 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
591 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
593 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
594 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
595 # the target needs software single step. An ISA method to implement it.
597 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
598 # using the breakpoint system instead of blatting memory directly (as with rs6000).
600 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
601 # single step. If not, then implement single step using breakpoints.
602 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
603 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
604 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
607 # For SVR4 shared libraries, each call goes through a small piece of
608 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
609 # to nonzero if we are currently stopped in one of these.
610 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
612 # Some systems also have trampoline code for returning from shared libs.
613 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
615 # Sigtramp is a routine that the kernel calls (which then calls the
616 # signal handler). On most machines it is a library routine that is
617 # linked into the executable.
619 # This macro, given a program counter value and the name of the
620 # function in which that PC resides (which can be null if the name is
621 # not known), returns nonzero if the PC and name show that we are in
624 # On most machines just see if the name is sigtramp (and if we have
625 # no name, assume we are not in sigtramp).
627 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
628 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
629 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
630 # own local NAME lookup.
632 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
633 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
635 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
636 # A target might have problems with watchpoints as soon as the stack
637 # frame of the current function has been destroyed. This mostly happens
638 # as the first action in a funtion's epilogue. in_function_epilogue_p()
639 # is defined to return a non-zero value if either the given addr is one
640 # instruction after the stack destroying instruction up to the trailing
641 # return instruction or if we can figure out that the stack frame has
642 # already been invalidated regardless of the value of addr. Targets
643 # which don't suffer from that problem could just let this functionality
645 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
646 # Given a vector of command-line arguments, return a newly allocated
647 # string which, when passed to the create_inferior function, will be
648 # parsed (on Unix systems, by the shell) to yield the same vector.
649 # This function should call error() if the argument vector is not
650 # representable for this target or if this target does not support
651 # command-line arguments.
652 # ARGC is the number of elements in the vector.
653 # ARGV is an array of strings, one per argument.
654 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
655 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
656 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
657 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
664 exec > new-gdbarch.log
665 function_list |
while do_read
668 ${class} ${macro}(${actual})
669 ${returntype} ${function} ($formal)${attrib}
673 eval echo \"\ \ \ \
${r}=\
${${r}}\"
675 # #fallbackdefault=${fallbackdefault}
676 # #valid_p=${valid_p}
678 if class_is_predicate_p
&& fallback_default_p
680 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
684 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
686 echo "Error: postdefault is useless when invalid_p=0" 1>&2
690 if class_is_multiarch_p
692 if class_is_predicate_p
; then :
693 elif test "x${predefault}" = "x"
695 echo "Error: pure multi-arch function must have a predefault" 1>&2
704 compare_new gdbarch.log
710 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
712 /* Dynamic architecture support for GDB, the GNU debugger.
713 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
715 This file is part of GDB.
717 This program is free software; you can redistribute it and/or modify
718 it under the terms of the GNU General Public License as published by
719 the Free Software Foundation; either version 2 of the License, or
720 (at your option) any later version.
722 This program is distributed in the hope that it will be useful,
723 but WITHOUT ANY WARRANTY; without even the implied warranty of
724 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
725 GNU General Public License for more details.
727 You should have received a copy of the GNU General Public License
728 along with this program; if not, write to the Free Software
729 Foundation, Inc., 59 Temple Place - Suite 330,
730 Boston, MA 02111-1307, USA. */
732 /* This file was created with the aid of \`\`gdbarch.sh''.
734 The Bourne shell script \`\`gdbarch.sh'' creates the files
735 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
736 against the existing \`\`gdbarch.[hc]''. Any differences found
739 If editing this file, please also run gdbarch.sh and merge any
740 changes into that script. Conversely, when making sweeping changes
741 to this file, modifying gdbarch.sh and using its output may prove
757 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
759 /* Pull in function declarations refered to, indirectly, via macros. */
760 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
761 #include "inferior.h" /* For unsigned_address_to_pointer(). */
767 struct minimal_symbol;
770 extern struct gdbarch *current_gdbarch;
773 /* If any of the following are defined, the target wasn't correctly
777 #if defined (EXTRA_FRAME_INFO)
778 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
783 #if defined (FRAME_FIND_SAVED_REGS)
784 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
788 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
789 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
796 printf "/* The following are pre-initialized by GDBARCH. */\n"
797 function_list |
while do_read
802 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
803 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
804 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
805 printf "#error \"Non multi-arch definition of ${macro}\"\n"
807 printf "#if GDB_MULTI_ARCH\n"
808 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
809 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
818 printf "/* The following are initialized by the target dependent code. */\n"
819 function_list |
while do_read
821 if [ -n "${comment}" ]
823 echo "${comment}" |
sed \
828 if class_is_multiarch_p
830 if class_is_predicate_p
833 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
836 if class_is_predicate_p
839 printf "#if defined (${macro})\n"
840 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
841 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
842 printf "#if !defined (${macro}_P)\n"
843 printf "#define ${macro}_P() (1)\n"
847 printf "/* Default predicate for non- multi-arch targets. */\n"
848 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
849 printf "#define ${macro}_P() (0)\n"
852 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
853 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
854 printf "#error \"Non multi-arch definition of ${macro}\"\n"
856 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
857 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
861 if class_is_variable_p
863 if fallback_default_p || class_is_predicate_p
866 printf "/* Default (value) for non- multi-arch platforms. */\n"
867 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
868 echo "#define ${macro} (${fallbackdefault})" \
869 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
873 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
874 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
875 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
876 printf "#error \"Non multi-arch definition of ${macro}\"\n"
878 printf "#if GDB_MULTI_ARCH\n"
879 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
880 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
884 if class_is_function_p
886 if class_is_multiarch_p
; then :
887 elif fallback_default_p || class_is_predicate_p
890 printf "/* Default (function) for non- multi-arch platforms. */\n"
891 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
892 if [ "x${fallbackdefault}" = "x0" ]
894 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
896 # FIXME: Should be passing current_gdbarch through!
897 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
898 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
903 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
905 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
906 elif class_is_multiarch_p
908 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
910 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
912 if [ "x${formal}" = "xvoid" ]
914 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
916 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
918 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
919 if class_is_multiarch_p
; then :
921 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
922 printf "#error \"Non multi-arch definition of ${macro}\"\n"
924 printf "#if GDB_MULTI_ARCH\n"
925 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
926 if [ "x${actual}" = "x" ]
928 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
929 elif [ "x${actual}" = "x-" ]
931 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
933 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
944 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
947 /* Mechanism for co-ordinating the selection of a specific
950 GDB targets (*-tdep.c) can register an interest in a specific
951 architecture. Other GDB components can register a need to maintain
952 per-architecture data.
954 The mechanisms below ensures that there is only a loose connection
955 between the set-architecture command and the various GDB
956 components. Each component can independently register their need
957 to maintain architecture specific data with gdbarch.
961 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
964 The more traditional mega-struct containing architecture specific
965 data for all the various GDB components was also considered. Since
966 GDB is built from a variable number of (fairly independent)
967 components it was determined that the global aproach was not
971 /* Register a new architectural family with GDB.
973 Register support for the specified ARCHITECTURE with GDB. When
974 gdbarch determines that the specified architecture has been
975 selected, the corresponding INIT function is called.
979 The INIT function takes two parameters: INFO which contains the
980 information available to gdbarch about the (possibly new)
981 architecture; ARCHES which is a list of the previously created
982 \`\`struct gdbarch'' for this architecture.
984 The INFO parameter is, as far as possible, be pre-initialized with
985 information obtained from INFO.ABFD or the previously selected
988 The ARCHES parameter is a linked list (sorted most recently used)
989 of all the previously created architures for this architecture
990 family. The (possibly NULL) ARCHES->gdbarch can used to access
991 values from the previously selected architecture for this
992 architecture family. The global \`\`current_gdbarch'' shall not be
995 The INIT function shall return any of: NULL - indicating that it
996 doesn't recognize the selected architecture; an existing \`\`struct
997 gdbarch'' from the ARCHES list - indicating that the new
998 architecture is just a synonym for an earlier architecture (see
999 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1000 - that describes the selected architecture (see gdbarch_alloc()).
1002 The DUMP_TDEP function shall print out all target specific values.
1003 Care should be taken to ensure that the function works in both the
1004 multi-arch and non- multi-arch cases. */
1008 struct gdbarch *gdbarch;
1009 struct gdbarch_list *next;
1014 /* Use default: NULL (ZERO). */
1015 const struct bfd_arch_info *bfd_arch_info;
1017 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1020 /* Use default: NULL (ZERO). */
1023 /* Use default: NULL (ZERO). */
1024 struct gdbarch_tdep_info *tdep_info;
1027 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1028 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1030 /* DEPRECATED - use gdbarch_register() */
1031 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1033 extern void gdbarch_register (enum bfd_architecture architecture,
1034 gdbarch_init_ftype *,
1035 gdbarch_dump_tdep_ftype *);
1038 /* Return a freshly allocated, NULL terminated, array of the valid
1039 architecture names. Since architectures are registered during the
1040 _initialize phase this function only returns useful information
1041 once initialization has been completed. */
1043 extern const char **gdbarch_printable_names (void);
1046 /* Helper function. Search the list of ARCHES for a GDBARCH that
1047 matches the information provided by INFO. */
1049 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1052 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1053 basic initialization using values obtained from the INFO andTDEP
1054 parameters. set_gdbarch_*() functions are called to complete the
1055 initialization of the object. */
1057 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1060 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1061 It is assumed that the caller freeds the \`\`struct
1064 extern void gdbarch_free (struct gdbarch *);
1067 /* Helper function. Force an update of the current architecture.
1069 The actual architecture selected is determined by INFO, \`\`(gdb) set
1070 architecture'' et.al., the existing architecture and BFD's default
1071 architecture. INFO should be initialized to zero and then selected
1072 fields should be updated.
1074 Returns non-zero if the update succeeds */
1076 extern int gdbarch_update_p (struct gdbarch_info info);
1080 /* Register per-architecture data-pointer.
1082 Reserve space for a per-architecture data-pointer. An identifier
1083 for the reserved data-pointer is returned. That identifer should
1084 be saved in a local static variable.
1086 The per-architecture data-pointer is either initialized explicitly
1087 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1088 gdbarch_data()). FREE() is called to delete either an existing
1089 data-pointer overridden by set_gdbarch_data() or when the
1090 architecture object is being deleted.
1092 When a previously created architecture is re-selected, the
1093 per-architecture data-pointer for that previous architecture is
1094 restored. INIT() is not re-called.
1096 Multiple registrarants for any architecture are allowed (and
1097 strongly encouraged). */
1099 struct gdbarch_data;
1101 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1102 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1104 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1105 gdbarch_data_free_ftype *free);
1106 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1107 struct gdbarch_data *data,
1110 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1113 /* Register per-architecture memory region.
1115 Provide a memory-region swap mechanism. Per-architecture memory
1116 region are created. These memory regions are swapped whenever the
1117 architecture is changed. For a new architecture, the memory region
1118 is initialized with zero (0) and the INIT function is called.
1120 Memory regions are swapped / initialized in the order that they are
1121 registered. NULL DATA and/or INIT values can be specified.
1123 New code should use register_gdbarch_data(). */
1125 typedef void (gdbarch_swap_ftype) (void);
1126 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1127 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1131 /* The target-system-dependent byte order is dynamic */
1133 extern int target_byte_order;
1134 #ifndef TARGET_BYTE_ORDER
1135 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1138 extern int target_byte_order_auto;
1139 #ifndef TARGET_BYTE_ORDER_AUTO
1140 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1145 /* The target-system-dependent BFD architecture is dynamic */
1147 extern int target_architecture_auto;
1148 #ifndef TARGET_ARCHITECTURE_AUTO
1149 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1152 extern const struct bfd_arch_info *target_architecture;
1153 #ifndef TARGET_ARCHITECTURE
1154 #define TARGET_ARCHITECTURE (target_architecture + 0)
1158 /* The target-system-dependent disassembler is semi-dynamic */
1160 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1161 unsigned int len, disassemble_info *info);
1163 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1164 disassemble_info *info);
1166 extern void dis_asm_print_address (bfd_vma addr,
1167 disassemble_info *info);
1169 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1170 extern disassemble_info tm_print_insn_info;
1171 #ifndef TARGET_PRINT_INSN_INFO
1172 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1177 /* Set the dynamic target-system-dependent parameters (architecture,
1178 byte-order, ...) using information found in the BFD */
1180 extern void set_gdbarch_from_file (bfd *);
1183 /* Initialize the current architecture to the "first" one we find on
1186 extern void initialize_current_architecture (void);
1188 /* For non-multiarched targets, do any initialization of the default
1189 gdbarch object necessary after the _initialize_MODULE functions
1191 extern void initialize_non_multiarch (void);
1193 /* gdbarch trace variable */
1194 extern int gdbarch_debug;
1196 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1201 #../move-if-change new-gdbarch.h gdbarch.h
1202 compare_new gdbarch.h
1209 exec > new-gdbarch.c
1214 #include "arch-utils.h"
1218 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1220 /* Just include everything in sight so that the every old definition
1221 of macro is visible. */
1222 #include "gdb_string.h"
1226 #include "inferior.h"
1227 #include "breakpoint.h"
1228 #include "gdb_wait.h"
1229 #include "gdbcore.h"
1232 #include "gdbthread.h"
1233 #include "annotate.h"
1234 #include "symfile.h" /* for overlay functions */
1235 #include "value.h" /* For old tm.h/nm.h macros. */
1239 #include "floatformat.h"
1241 #include "gdb_assert.h"
1242 #include "gdb_string.h"
1243 #include "gdb-events.h"
1245 /* Static function declarations */
1247 static void verify_gdbarch (struct gdbarch *gdbarch);
1248 static void alloc_gdbarch_data (struct gdbarch *);
1249 static void free_gdbarch_data (struct gdbarch *);
1250 static void init_gdbarch_swap (struct gdbarch *);
1251 static void clear_gdbarch_swap (struct gdbarch *);
1252 static void swapout_gdbarch_swap (struct gdbarch *);
1253 static void swapin_gdbarch_swap (struct gdbarch *);
1255 /* Non-zero if we want to trace architecture code. */
1257 #ifndef GDBARCH_DEBUG
1258 #define GDBARCH_DEBUG 0
1260 int gdbarch_debug = GDBARCH_DEBUG;
1264 # gdbarch open the gdbarch object
1266 printf "/* Maintain the struct gdbarch object */\n"
1268 printf "struct gdbarch\n"
1270 printf " /* Has this architecture been fully initialized? */\n"
1271 printf " int initialized_p;\n"
1272 printf " /* basic architectural information */\n"
1273 function_list |
while do_read
1277 printf " ${returntype} ${function};\n"
1281 printf " /* target specific vector. */\n"
1282 printf " struct gdbarch_tdep *tdep;\n"
1283 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1285 printf " /* per-architecture data-pointers */\n"
1286 printf " unsigned nr_data;\n"
1287 printf " void **data;\n"
1289 printf " /* per-architecture swap-regions */\n"
1290 printf " struct gdbarch_swap *swap;\n"
1293 /* Multi-arch values.
1295 When extending this structure you must:
1297 Add the field below.
1299 Declare set/get functions and define the corresponding
1302 gdbarch_alloc(): If zero/NULL is not a suitable default,
1303 initialize the new field.
1305 verify_gdbarch(): Confirm that the target updated the field
1308 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1311 \`\`startup_gdbarch()'': Append an initial value to the static
1312 variable (base values on the host's c-type system).
1314 get_gdbarch(): Implement the set/get functions (probably using
1315 the macro's as shortcuts).
1320 function_list |
while do_read
1322 if class_is_variable_p
1324 printf " ${returntype} ${function};\n"
1325 elif class_is_function_p
1327 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1332 # A pre-initialized vector
1336 /* The default architecture uses host values (for want of a better
1340 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1342 printf "struct gdbarch startup_gdbarch =\n"
1344 printf " 1, /* Always initialized. */\n"
1345 printf " /* basic architecture information */\n"
1346 function_list |
while do_read
1350 printf " ${staticdefault},\n"
1354 /* target specific vector and its dump routine */
1356 /*per-architecture data-pointers and swap regions */
1358 /* Multi-arch values */
1360 function_list |
while do_read
1362 if class_is_function_p || class_is_variable_p
1364 printf " ${staticdefault},\n"
1368 /* startup_gdbarch() */
1371 struct gdbarch *current_gdbarch = &startup_gdbarch;
1373 /* Do any initialization needed for a non-multiarch configuration
1374 after the _initialize_MODULE functions have been run. */
1376 initialize_non_multiarch (void)
1378 alloc_gdbarch_data (&startup_gdbarch);
1379 /* Ensure that all swap areas are zeroed so that they again think
1380 they are starting from scratch. */
1381 clear_gdbarch_swap (&startup_gdbarch);
1382 init_gdbarch_swap (&startup_gdbarch);
1386 # Create a new gdbarch struct
1390 /* Create a new \`\`struct gdbarch'' based on information provided by
1391 \`\`struct gdbarch_info''. */
1396 gdbarch_alloc (const struct gdbarch_info *info,
1397 struct gdbarch_tdep *tdep)
1399 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1400 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1401 the current local architecture and not the previous global
1402 architecture. This ensures that the new architectures initial
1403 values are not influenced by the previous architecture. Once
1404 everything is parameterised with gdbarch, this will go away. */
1405 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1406 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1408 alloc_gdbarch_data (current_gdbarch);
1410 current_gdbarch->tdep = tdep;
1413 function_list |
while do_read
1417 printf " current_gdbarch->${function} = info->${function};\n"
1421 printf " /* Force the explicit initialization of these. */\n"
1422 function_list |
while do_read
1424 if class_is_function_p || class_is_variable_p
1426 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1428 printf " current_gdbarch->${function} = ${predefault};\n"
1433 /* gdbarch_alloc() */
1435 return current_gdbarch;
1439 # Free a gdbarch struct.
1443 /* Free a gdbarch struct. This should never happen in normal
1444 operation --- once you've created a gdbarch, you keep it around.
1445 However, if an architecture's init function encounters an error
1446 building the structure, it may need to clean up a partially
1447 constructed gdbarch. */
1450 gdbarch_free (struct gdbarch *arch)
1452 gdb_assert (arch != NULL);
1453 free_gdbarch_data (arch);
1458 # verify a new architecture
1461 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1465 verify_gdbarch (struct gdbarch *gdbarch)
1467 struct ui_file *log;
1468 struct cleanup *cleanups;
1471 /* Only perform sanity checks on a multi-arch target. */
1472 if (!GDB_MULTI_ARCH)
1474 log = mem_fileopen ();
1475 cleanups = make_cleanup_ui_file_delete (log);
1477 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1478 fprintf_unfiltered (log, "\n\tbyte-order");
1479 if (gdbarch->bfd_arch_info == NULL)
1480 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1481 /* Check those that need to be defined for the given multi-arch level. */
1483 function_list |
while do_read
1485 if class_is_function_p || class_is_variable_p
1487 if [ "x${invalid_p}" = "x0" ]
1489 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1490 elif class_is_predicate_p
1492 printf " /* Skip verify of ${function}, has predicate */\n"
1493 # FIXME: See do_read for potential simplification
1494 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1496 printf " if (${invalid_p})\n"
1497 printf " gdbarch->${function} = ${postdefault};\n"
1498 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1500 printf " if (gdbarch->${function} == ${predefault})\n"
1501 printf " gdbarch->${function} = ${postdefault};\n"
1502 elif [ -n "${postdefault}" ]
1504 printf " if (gdbarch->${function} == 0)\n"
1505 printf " gdbarch->${function} = ${postdefault};\n"
1506 elif [ -n "${invalid_p}" ]
1508 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1509 printf " && (${invalid_p}))\n"
1510 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1511 elif [ -n "${predefault}" ]
1513 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1514 printf " && (gdbarch->${function} == ${predefault}))\n"
1515 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1520 buf = ui_file_xstrdup (log, &dummy);
1521 make_cleanup (xfree, buf);
1522 if (strlen (buf) > 0)
1523 internal_error (__FILE__, __LINE__,
1524 "verify_gdbarch: the following are invalid ...%s",
1526 do_cleanups (cleanups);
1530 # dump the structure
1534 /* Print out the details of the current architecture. */
1536 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1537 just happens to match the global variable \`\`current_gdbarch''. That
1538 way macros refering to that variable get the local and not the global
1539 version - ulgh. Once everything is parameterised with gdbarch, this
1543 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1545 fprintf_unfiltered (file,
1546 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1549 function_list |
sort -t: +2 |
while do_read
1551 # multiarch functions don't have macros.
1552 if class_is_multiarch_p
1554 printf " if (GDB_MULTI_ARCH)\n"
1555 printf " fprintf_unfiltered (file,\n"
1556 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1557 printf " (long) current_gdbarch->${function});\n"
1560 # Print the macro definition.
1561 printf "#ifdef ${macro}\n"
1562 if [ "x${returntype}" = "xvoid" ]
1564 printf "#if GDB_MULTI_ARCH\n"
1565 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1567 if class_is_function_p
1569 printf " fprintf_unfiltered (file,\n"
1570 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1571 printf " \"${macro}(${actual})\",\n"
1572 printf " XSTRING (${macro} (${actual})));\n"
1574 printf " fprintf_unfiltered (file,\n"
1575 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1576 printf " XSTRING (${macro}));\n"
1578 # Print the architecture vector value
1579 if [ "x${returntype}" = "xvoid" ]
1583 if [ "x${print_p}" = "x()" ]
1585 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1586 elif [ "x${print_p}" = "x0" ]
1588 printf " /* skip print of ${macro}, print_p == 0. */\n"
1589 elif [ -n "${print_p}" ]
1591 printf " if (${print_p})\n"
1592 printf " fprintf_unfiltered (file,\n"
1593 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1594 printf " ${print});\n"
1595 elif class_is_function_p
1597 printf " if (GDB_MULTI_ARCH)\n"
1598 printf " fprintf_unfiltered (file,\n"
1599 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1600 printf " (long) current_gdbarch->${function}\n"
1601 printf " /*${macro} ()*/);\n"
1603 printf " fprintf_unfiltered (file,\n"
1604 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1605 printf " ${print});\n"
1610 if (current_gdbarch->dump_tdep != NULL)
1611 current_gdbarch->dump_tdep (current_gdbarch, file);
1619 struct gdbarch_tdep *
1620 gdbarch_tdep (struct gdbarch *gdbarch)
1622 if (gdbarch_debug >= 2)
1623 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1624 return gdbarch->tdep;
1628 function_list |
while do_read
1630 if class_is_predicate_p
1634 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1636 printf " gdb_assert (gdbarch != NULL);\n"
1637 if [ -n "${valid_p}" ]
1639 printf " return ${valid_p};\n"
1641 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1645 if class_is_function_p
1648 printf "${returntype}\n"
1649 if [ "x${formal}" = "xvoid" ]
1651 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1653 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1656 printf " gdb_assert (gdbarch != NULL);\n"
1657 printf " if (gdbarch->${function} == 0)\n"
1658 printf " internal_error (__FILE__, __LINE__,\n"
1659 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1660 printf " if (gdbarch_debug >= 2)\n"
1661 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1662 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1664 if class_is_multiarch_p
1671 if class_is_multiarch_p
1673 params
="gdbarch, ${actual}"
1678 if [ "x${returntype}" = "xvoid" ]
1680 printf " gdbarch->${function} (${params});\n"
1682 printf " return gdbarch->${function} (${params});\n"
1687 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1688 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1690 printf " gdbarch->${function} = ${function};\n"
1692 elif class_is_variable_p
1695 printf "${returntype}\n"
1696 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1698 printf " gdb_assert (gdbarch != NULL);\n"
1699 if [ "x${invalid_p}" = "x0" ]
1701 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1702 elif [ -n "${invalid_p}" ]
1704 printf " if (${invalid_p})\n"
1705 printf " internal_error (__FILE__, __LINE__,\n"
1706 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1707 elif [ -n "${predefault}" ]
1709 printf " if (gdbarch->${function} == ${predefault})\n"
1710 printf " internal_error (__FILE__, __LINE__,\n"
1711 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1713 printf " if (gdbarch_debug >= 2)\n"
1714 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1715 printf " return gdbarch->${function};\n"
1719 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1720 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1722 printf " gdbarch->${function} = ${function};\n"
1724 elif class_is_info_p
1727 printf "${returntype}\n"
1728 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1730 printf " gdb_assert (gdbarch != NULL);\n"
1731 printf " if (gdbarch_debug >= 2)\n"
1732 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1733 printf " return gdbarch->${function};\n"
1738 # All the trailing guff
1742 /* Keep a registry of per-architecture data-pointers required by GDB
1749 gdbarch_data_init_ftype *init;
1750 gdbarch_data_free_ftype *free;
1753 struct gdbarch_data_registration
1755 struct gdbarch_data *data;
1756 struct gdbarch_data_registration *next;
1759 struct gdbarch_data_registry
1762 struct gdbarch_data_registration *registrations;
1765 struct gdbarch_data_registry gdbarch_data_registry =
1770 struct gdbarch_data *
1771 register_gdbarch_data (gdbarch_data_init_ftype *init,
1772 gdbarch_data_free_ftype *free)
1774 struct gdbarch_data_registration **curr;
1775 /* Append the new registraration. */
1776 for (curr = &gdbarch_data_registry.registrations;
1778 curr = &(*curr)->next);
1779 (*curr) = XMALLOC (struct gdbarch_data_registration);
1780 (*curr)->next = NULL;
1781 (*curr)->data = XMALLOC (struct gdbarch_data);
1782 (*curr)->data->index = gdbarch_data_registry.nr++;
1783 (*curr)->data->init = init;
1784 (*curr)->data->init_p = 1;
1785 (*curr)->data->free = free;
1786 return (*curr)->data;
1790 /* Create/delete the gdbarch data vector. */
1793 alloc_gdbarch_data (struct gdbarch *gdbarch)
1795 gdb_assert (gdbarch->data == NULL);
1796 gdbarch->nr_data = gdbarch_data_registry.nr;
1797 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1801 free_gdbarch_data (struct gdbarch *gdbarch)
1803 struct gdbarch_data_registration *rego;
1804 gdb_assert (gdbarch->data != NULL);
1805 for (rego = gdbarch_data_registry.registrations;
1809 struct gdbarch_data *data = rego->data;
1810 gdb_assert (data->index < gdbarch->nr_data);
1811 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1813 data->free (gdbarch, gdbarch->data[data->index]);
1814 gdbarch->data[data->index] = NULL;
1817 xfree (gdbarch->data);
1818 gdbarch->data = NULL;
1822 /* Initialize the current value of the specified per-architecture
1826 set_gdbarch_data (struct gdbarch *gdbarch,
1827 struct gdbarch_data *data,
1830 gdb_assert (data->index < gdbarch->nr_data);
1831 if (gdbarch->data[data->index] != NULL)
1833 gdb_assert (data->free != NULL);
1834 data->free (gdbarch, gdbarch->data[data->index]);
1836 gdbarch->data[data->index] = pointer;
1839 /* Return the current value of the specified per-architecture
1843 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1845 gdb_assert (data->index < gdbarch->nr_data);
1846 /* The data-pointer isn't initialized, call init() to get a value but
1847 only if the architecture initializaiton has completed. Otherwise
1848 punt - hope that the caller knows what they are doing. */
1849 if (gdbarch->data[data->index] == NULL
1850 && gdbarch->initialized_p)
1852 /* Be careful to detect an initialization cycle. */
1853 gdb_assert (data->init_p);
1855 gdb_assert (data->init != NULL);
1856 gdbarch->data[data->index] = data->init (gdbarch);
1858 gdb_assert (gdbarch->data[data->index] != NULL);
1860 return gdbarch->data[data->index];
1865 /* Keep a registry of swapped data required by GDB modules. */
1870 struct gdbarch_swap_registration *source;
1871 struct gdbarch_swap *next;
1874 struct gdbarch_swap_registration
1877 unsigned long sizeof_data;
1878 gdbarch_swap_ftype *init;
1879 struct gdbarch_swap_registration *next;
1882 struct gdbarch_swap_registry
1885 struct gdbarch_swap_registration *registrations;
1888 struct gdbarch_swap_registry gdbarch_swap_registry =
1894 register_gdbarch_swap (void *data,
1895 unsigned long sizeof_data,
1896 gdbarch_swap_ftype *init)
1898 struct gdbarch_swap_registration **rego;
1899 for (rego = &gdbarch_swap_registry.registrations;
1901 rego = &(*rego)->next);
1902 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1903 (*rego)->next = NULL;
1904 (*rego)->init = init;
1905 (*rego)->data = data;
1906 (*rego)->sizeof_data = sizeof_data;
1910 clear_gdbarch_swap (struct gdbarch *gdbarch)
1912 struct gdbarch_swap *curr;
1913 for (curr = gdbarch->swap;
1917 memset (curr->source->data, 0, curr->source->sizeof_data);
1922 init_gdbarch_swap (struct gdbarch *gdbarch)
1924 struct gdbarch_swap_registration *rego;
1925 struct gdbarch_swap **curr = &gdbarch->swap;
1926 for (rego = gdbarch_swap_registry.registrations;
1930 if (rego->data != NULL)
1932 (*curr) = XMALLOC (struct gdbarch_swap);
1933 (*curr)->source = rego;
1934 (*curr)->swap = xmalloc (rego->sizeof_data);
1935 (*curr)->next = NULL;
1936 curr = &(*curr)->next;
1938 if (rego->init != NULL)
1944 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1946 struct gdbarch_swap *curr;
1947 for (curr = gdbarch->swap;
1950 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1954 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1956 struct gdbarch_swap *curr;
1957 for (curr = gdbarch->swap;
1960 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1964 /* Keep a registry of the architectures known by GDB. */
1966 struct gdbarch_registration
1968 enum bfd_architecture bfd_architecture;
1969 gdbarch_init_ftype *init;
1970 gdbarch_dump_tdep_ftype *dump_tdep;
1971 struct gdbarch_list *arches;
1972 struct gdbarch_registration *next;
1975 static struct gdbarch_registration *gdbarch_registry = NULL;
1978 append_name (const char ***buf, int *nr, const char *name)
1980 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1986 gdbarch_printable_names (void)
1990 /* Accumulate a list of names based on the registed list of
1992 enum bfd_architecture a;
1994 const char **arches = NULL;
1995 struct gdbarch_registration *rego;
1996 for (rego = gdbarch_registry;
2000 const struct bfd_arch_info *ap;
2001 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2003 internal_error (__FILE__, __LINE__,
2004 "gdbarch_architecture_names: multi-arch unknown");
2007 append_name (&arches, &nr_arches, ap->printable_name);
2012 append_name (&arches, &nr_arches, NULL);
2016 /* Just return all the architectures that BFD knows. Assume that
2017 the legacy architecture framework supports them. */
2018 return bfd_arch_list ();
2023 gdbarch_register (enum bfd_architecture bfd_architecture,
2024 gdbarch_init_ftype *init,
2025 gdbarch_dump_tdep_ftype *dump_tdep)
2027 struct gdbarch_registration **curr;
2028 const struct bfd_arch_info *bfd_arch_info;
2029 /* Check that BFD recognizes this architecture */
2030 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2031 if (bfd_arch_info == NULL)
2033 internal_error (__FILE__, __LINE__,
2034 "gdbarch: Attempt to register unknown architecture (%d)",
2037 /* Check that we haven't seen this architecture before */
2038 for (curr = &gdbarch_registry;
2040 curr = &(*curr)->next)
2042 if (bfd_architecture == (*curr)->bfd_architecture)
2043 internal_error (__FILE__, __LINE__,
2044 "gdbarch: Duplicate registraration of architecture (%s)",
2045 bfd_arch_info->printable_name);
2049 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2050 bfd_arch_info->printable_name,
2053 (*curr) = XMALLOC (struct gdbarch_registration);
2054 (*curr)->bfd_architecture = bfd_architecture;
2055 (*curr)->init = init;
2056 (*curr)->dump_tdep = dump_tdep;
2057 (*curr)->arches = NULL;
2058 (*curr)->next = NULL;
2059 /* When non- multi-arch, install whatever target dump routine we've
2060 been provided - hopefully that routine has been written correctly
2061 and works regardless of multi-arch. */
2062 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2063 && startup_gdbarch.dump_tdep == NULL)
2064 startup_gdbarch.dump_tdep = dump_tdep;
2068 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2069 gdbarch_init_ftype *init)
2071 gdbarch_register (bfd_architecture, init, NULL);
2075 /* Look for an architecture using gdbarch_info. Base search on only
2076 BFD_ARCH_INFO and BYTE_ORDER. */
2078 struct gdbarch_list *
2079 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2080 const struct gdbarch_info *info)
2082 for (; arches != NULL; arches = arches->next)
2084 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2086 if (info->byte_order != arches->gdbarch->byte_order)
2094 /* Update the current architecture. Return ZERO if the update request
2098 gdbarch_update_p (struct gdbarch_info info)
2100 struct gdbarch *new_gdbarch;
2101 struct gdbarch *old_gdbarch;
2102 struct gdbarch_registration *rego;
2104 /* Fill in missing parts of the INFO struct using a number of
2105 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2107 /* \`\`(gdb) set architecture ...'' */
2108 if (info.bfd_arch_info == NULL
2109 && !TARGET_ARCHITECTURE_AUTO)
2110 info.bfd_arch_info = TARGET_ARCHITECTURE;
2111 if (info.bfd_arch_info == NULL
2112 && info.abfd != NULL
2113 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2114 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2115 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2116 if (info.bfd_arch_info == NULL)
2117 info.bfd_arch_info = TARGET_ARCHITECTURE;
2119 /* \`\`(gdb) set byte-order ...'' */
2120 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2121 && !TARGET_BYTE_ORDER_AUTO)
2122 info.byte_order = TARGET_BYTE_ORDER;
2123 /* From the INFO struct. */
2124 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2125 && info.abfd != NULL)
2126 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2127 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2128 : BFD_ENDIAN_UNKNOWN);
2129 /* From the current target. */
2130 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2131 info.byte_order = TARGET_BYTE_ORDER;
2133 /* Must have found some sort of architecture. */
2134 gdb_assert (info.bfd_arch_info != NULL);
2138 fprintf_unfiltered (gdb_stdlog,
2139 "gdbarch_update: info.bfd_arch_info %s\n",
2140 (info.bfd_arch_info != NULL
2141 ? info.bfd_arch_info->printable_name
2143 fprintf_unfiltered (gdb_stdlog,
2144 "gdbarch_update: info.byte_order %d (%s)\n",
2146 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2147 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2149 fprintf_unfiltered (gdb_stdlog,
2150 "gdbarch_update: info.abfd 0x%lx\n",
2152 fprintf_unfiltered (gdb_stdlog,
2153 "gdbarch_update: info.tdep_info 0x%lx\n",
2154 (long) info.tdep_info);
2157 /* Find the target that knows about this architecture. */
2158 for (rego = gdbarch_registry;
2161 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2166 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2170 /* Swap the data belonging to the old target out setting the
2171 installed data to zero. This stops the ->init() function trying
2172 to refer to the previous architecture's global data structures. */
2173 swapout_gdbarch_swap (current_gdbarch);
2174 clear_gdbarch_swap (current_gdbarch);
2176 /* Save the previously selected architecture, setting the global to
2177 NULL. This stops ->init() trying to use the previous
2178 architecture's configuration. The previous architecture may not
2179 even be of the same architecture family. The most recent
2180 architecture of the same family is found at the head of the
2181 rego->arches list. */
2182 old_gdbarch = current_gdbarch;
2183 current_gdbarch = NULL;
2185 /* Ask the target for a replacement architecture. */
2186 new_gdbarch = rego->init (info, rego->arches);
2188 /* Did the target like it? No. Reject the change and revert to the
2189 old architecture. */
2190 if (new_gdbarch == NULL)
2193 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2194 swapin_gdbarch_swap (old_gdbarch);
2195 current_gdbarch = old_gdbarch;
2199 /* Did the architecture change? No. Oops, put the old architecture
2201 if (old_gdbarch == new_gdbarch)
2204 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2206 new_gdbarch->bfd_arch_info->printable_name);
2207 swapin_gdbarch_swap (old_gdbarch);
2208 current_gdbarch = old_gdbarch;
2212 /* Is this a pre-existing architecture? Yes. Move it to the front
2213 of the list of architectures (keeping the list sorted Most
2214 Recently Used) and then copy it in. */
2216 struct gdbarch_list **list;
2217 for (list = ®o->arches;
2219 list = &(*list)->next)
2221 if ((*list)->gdbarch == new_gdbarch)
2223 struct gdbarch_list *this;
2225 fprintf_unfiltered (gdb_stdlog,
2226 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2228 new_gdbarch->bfd_arch_info->printable_name);
2231 (*list) = this->next;
2232 /* Insert in the front. */
2233 this->next = rego->arches;
2234 rego->arches = this;
2235 /* Copy the new architecture in. */
2236 current_gdbarch = new_gdbarch;
2237 swapin_gdbarch_swap (new_gdbarch);
2238 architecture_changed_event ();
2244 /* Prepend this new architecture to the architecture list (keep the
2245 list sorted Most Recently Used). */
2247 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2248 this->next = rego->arches;
2249 this->gdbarch = new_gdbarch;
2250 rego->arches = this;
2253 /* Switch to this new architecture marking it initialized. */
2254 current_gdbarch = new_gdbarch;
2255 current_gdbarch->initialized_p = 1;
2258 fprintf_unfiltered (gdb_stdlog,
2259 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2261 new_gdbarch->bfd_arch_info->printable_name);
2264 /* Check that the newly installed architecture is valid. Plug in
2265 any post init values. */
2266 new_gdbarch->dump_tdep = rego->dump_tdep;
2267 verify_gdbarch (new_gdbarch);
2269 /* Initialize the per-architecture memory (swap) areas.
2270 CURRENT_GDBARCH must be update before these modules are
2272 init_gdbarch_swap (new_gdbarch);
2274 /* Initialize the per-architecture data. CURRENT_GDBARCH
2275 must be updated before these modules are called. */
2276 architecture_changed_event ();
2279 gdbarch_dump (current_gdbarch, gdb_stdlog);
2287 /* Pointer to the target-dependent disassembly function. */
2288 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2289 disassemble_info tm_print_insn_info;
2292 extern void _initialize_gdbarch (void);
2295 _initialize_gdbarch (void)
2297 struct cmd_list_element *c;
2299 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2300 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2301 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2302 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2303 tm_print_insn_info.print_address_func = dis_asm_print_address;
2305 add_show_from_set (add_set_cmd ("arch",
2308 (char *)&gdbarch_debug,
2309 "Set architecture debugging.\\n\\
2310 When non-zero, architecture debugging is enabled.", &setdebuglist),
2312 c = add_set_cmd ("archdebug",
2315 (char *)&gdbarch_debug,
2316 "Set architecture debugging.\\n\\
2317 When non-zero, architecture debugging is enabled.", &setlist);
2319 deprecate_cmd (c, "set debug arch");
2320 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2326 #../move-if-change new-gdbarch.c gdbarch.c
2327 compare_new gdbarch.c