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:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_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: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
527 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0
528 F:2:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0
529 f:2:POP_FRAME:void:pop_frame:void:-:::0
531 f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0
533 f::EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
534 f::STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
535 f::DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
536 f::DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
538 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:struct regcache *regcache:regcache:::0
539 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:char *regbuf:regbuf:::0
540 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
542 f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0
543 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0
545 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
546 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0
547 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
548 f:2:BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0
549 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
550 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
551 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1
552 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0
553 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1
555 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
557 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
558 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
559 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
560 # Define a default FRAME_CHAIN_VALID, in the form that is suitable for
561 # most targets. If FRAME_CHAIN_VALID returns zero it means that the
562 # given frame is the outermost one and has no caller.
564 # XXXX - both default and alternate frame_chain_valid functions are
565 # deprecated. New code should use dummy frames and one of the generic
567 f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::generic_func_frame_chain_valid::0
568 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
569 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
570 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0
571 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0
572 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0
574 F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0
575 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
576 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
577 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
578 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
579 v:2:PARM_BOUNDARY:int:parm_boundary
581 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
582 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
583 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
584 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
585 # On some machines there are bits in addresses which are not really
586 # part of the address, but are used by the kernel, the hardware, etc.
587 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
588 # we get a "real" address such as one would find in a symbol table.
589 # This is used only for addresses of instructions, and even then I'm
590 # not sure it's used in all contexts. It exists to deal with there
591 # being a few stray bits in the PC which would mislead us, not as some
592 # sort of generic thing to handle alignment or segmentation (it's
593 # possible it should be in TARGET_READ_PC instead).
594 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
595 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
597 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
598 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
599 # the target needs software single step. An ISA method to implement it.
601 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
602 # using the breakpoint system instead of blatting memory directly (as with rs6000).
604 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
605 # single step. If not, then implement single step using breakpoints.
606 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
607 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
608 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
611 # For SVR4 shared libraries, each call goes through a small piece of
612 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
613 # to nonzero if we are currently stopped in one of these.
614 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
616 # Some systems also have trampoline code for returning from shared libs.
617 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
619 # Sigtramp is a routine that the kernel calls (which then calls the
620 # signal handler). On most machines it is a library routine that is
621 # linked into the executable.
623 # This macro, given a program counter value and the name of the
624 # function in which that PC resides (which can be null if the name is
625 # not known), returns nonzero if the PC and name show that we are in
628 # On most machines just see if the name is sigtramp (and if we have
629 # no name, assume we are not in sigtramp).
631 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
632 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
633 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
634 # own local NAME lookup.
636 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
637 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
639 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
640 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
641 F::SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc
642 # A target might have problems with watchpoints as soon as the stack
643 # frame of the current function has been destroyed. This mostly happens
644 # as the first action in a funtion's epilogue. in_function_epilogue_p()
645 # is defined to return a non-zero value if either the given addr is one
646 # instruction after the stack destroying instruction up to the trailing
647 # return instruction or if we can figure out that the stack frame has
648 # already been invalidated regardless of the value of addr. Targets
649 # which don't suffer from that problem could just let this functionality
651 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
652 # Given a vector of command-line arguments, return a newly allocated
653 # string which, when passed to the create_inferior function, will be
654 # parsed (on Unix systems, by the shell) to yield the same vector.
655 # This function should call error() if the argument vector is not
656 # representable for this target or if this target does not support
657 # command-line arguments.
658 # ARGC is the number of elements in the vector.
659 # ARGV is an array of strings, one per argument.
660 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
661 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
662 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
663 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 v::NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0
665 v::CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
666 v::HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
667 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
668 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:char *:address_class_type_flags_to_name:int type_flags:type_flags:
669 M:2:ADDRESS_CLASS_NAME_TO_TYPE_FLAGS:int:address_class_name_to_type_flags:char *name, int *type_flags_ptr:name, type_flags_ptr
676 exec > new-gdbarch.log
677 function_list |
while do_read
680 ${class} ${macro}(${actual})
681 ${returntype} ${function} ($formal)${attrib}
685 eval echo \"\ \ \ \
${r}=\
${${r}}\"
687 # #fallbackdefault=${fallbackdefault}
688 # #valid_p=${valid_p}
690 if class_is_predicate_p
&& fallback_default_p
692 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
696 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
698 echo "Error: postdefault is useless when invalid_p=0" 1>&2
702 if class_is_multiarch_p
704 if class_is_predicate_p
; then :
705 elif test "x${predefault}" = "x"
707 echo "Error: pure multi-arch function must have a predefault" 1>&2
716 compare_new gdbarch.log
722 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
724 /* Dynamic architecture support for GDB, the GNU debugger.
725 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
727 This file is part of GDB.
729 This program is free software; you can redistribute it and/or modify
730 it under the terms of the GNU General Public License as published by
731 the Free Software Foundation; either version 2 of the License, or
732 (at your option) any later version.
734 This program is distributed in the hope that it will be useful,
735 but WITHOUT ANY WARRANTY; without even the implied warranty of
736 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
737 GNU General Public License for more details.
739 You should have received a copy of the GNU General Public License
740 along with this program; if not, write to the Free Software
741 Foundation, Inc., 59 Temple Place - Suite 330,
742 Boston, MA 02111-1307, USA. */
744 /* This file was created with the aid of \`\`gdbarch.sh''.
746 The Bourne shell script \`\`gdbarch.sh'' creates the files
747 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
748 against the existing \`\`gdbarch.[hc]''. Any differences found
751 If editing this file, please also run gdbarch.sh and merge any
752 changes into that script. Conversely, when making sweeping changes
753 to this file, modifying gdbarch.sh and using its output may prove
769 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
771 /* Pull in function declarations refered to, indirectly, via macros. */
772 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
773 #include "inferior.h" /* For unsigned_address_to_pointer(). */
779 struct minimal_symbol;
782 extern struct gdbarch *current_gdbarch;
785 /* If any of the following are defined, the target wasn't correctly
789 #if defined (EXTRA_FRAME_INFO)
790 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
795 #if defined (FRAME_FIND_SAVED_REGS)
796 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
800 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
801 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
808 printf "/* The following are pre-initialized by GDBARCH. */\n"
809 function_list |
while do_read
814 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
815 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
816 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
817 printf "#error \"Non multi-arch definition of ${macro}\"\n"
819 printf "#if GDB_MULTI_ARCH\n"
820 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
821 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
830 printf "/* The following are initialized by the target dependent code. */\n"
831 function_list |
while do_read
833 if [ -n "${comment}" ]
835 echo "${comment}" |
sed \
840 if class_is_multiarch_p
842 if class_is_predicate_p
845 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
848 if class_is_predicate_p
851 printf "#if defined (${macro})\n"
852 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
853 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
854 printf "#if !defined (${macro}_P)\n"
855 printf "#define ${macro}_P() (1)\n"
859 printf "/* Default predicate for non- multi-arch targets. */\n"
860 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
861 printf "#define ${macro}_P() (0)\n"
864 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
865 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
866 printf "#error \"Non multi-arch definition of ${macro}\"\n"
868 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
869 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
873 if class_is_variable_p
875 if fallback_default_p || class_is_predicate_p
878 printf "/* Default (value) for non- multi-arch platforms. */\n"
879 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
880 echo "#define ${macro} (${fallbackdefault})" \
881 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
885 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
886 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
887 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
888 printf "#error \"Non multi-arch definition of ${macro}\"\n"
890 printf "#if GDB_MULTI_ARCH\n"
891 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
892 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
896 if class_is_function_p
898 if class_is_multiarch_p
; then :
899 elif fallback_default_p || class_is_predicate_p
902 printf "/* Default (function) for non- multi-arch platforms. */\n"
903 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
904 if [ "x${fallbackdefault}" = "x0" ]
906 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
908 # FIXME: Should be passing current_gdbarch through!
909 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
910 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
915 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
917 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
918 elif class_is_multiarch_p
920 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
922 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
924 if [ "x${formal}" = "xvoid" ]
926 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
928 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
930 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
931 if class_is_multiarch_p
; then :
933 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
934 printf "#error \"Non multi-arch definition of ${macro}\"\n"
936 printf "#if GDB_MULTI_ARCH\n"
937 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
938 if [ "x${actual}" = "x" ]
940 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
941 elif [ "x${actual}" = "x-" ]
943 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
945 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
956 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
959 /* Mechanism for co-ordinating the selection of a specific
962 GDB targets (*-tdep.c) can register an interest in a specific
963 architecture. Other GDB components can register a need to maintain
964 per-architecture data.
966 The mechanisms below ensures that there is only a loose connection
967 between the set-architecture command and the various GDB
968 components. Each component can independently register their need
969 to maintain architecture specific data with gdbarch.
973 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
976 The more traditional mega-struct containing architecture specific
977 data for all the various GDB components was also considered. Since
978 GDB is built from a variable number of (fairly independent)
979 components it was determined that the global aproach was not
983 /* Register a new architectural family with GDB.
985 Register support for the specified ARCHITECTURE with GDB. When
986 gdbarch determines that the specified architecture has been
987 selected, the corresponding INIT function is called.
991 The INIT function takes two parameters: INFO which contains the
992 information available to gdbarch about the (possibly new)
993 architecture; ARCHES which is a list of the previously created
994 \`\`struct gdbarch'' for this architecture.
996 The INFO parameter is, as far as possible, be pre-initialized with
997 information obtained from INFO.ABFD or the previously selected
1000 The ARCHES parameter is a linked list (sorted most recently used)
1001 of all the previously created architures for this architecture
1002 family. The (possibly NULL) ARCHES->gdbarch can used to access
1003 values from the previously selected architecture for this
1004 architecture family. The global \`\`current_gdbarch'' shall not be
1007 The INIT function shall return any of: NULL - indicating that it
1008 doesn't recognize the selected architecture; an existing \`\`struct
1009 gdbarch'' from the ARCHES list - indicating that the new
1010 architecture is just a synonym for an earlier architecture (see
1011 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1012 - that describes the selected architecture (see gdbarch_alloc()).
1014 The DUMP_TDEP function shall print out all target specific values.
1015 Care should be taken to ensure that the function works in both the
1016 multi-arch and non- multi-arch cases. */
1020 struct gdbarch *gdbarch;
1021 struct gdbarch_list *next;
1026 /* Use default: NULL (ZERO). */
1027 const struct bfd_arch_info *bfd_arch_info;
1029 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1032 /* Use default: NULL (ZERO). */
1035 /* Use default: NULL (ZERO). */
1036 struct gdbarch_tdep_info *tdep_info;
1039 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1040 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1042 /* DEPRECATED - use gdbarch_register() */
1043 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1045 extern void gdbarch_register (enum bfd_architecture architecture,
1046 gdbarch_init_ftype *,
1047 gdbarch_dump_tdep_ftype *);
1050 /* Return a freshly allocated, NULL terminated, array of the valid
1051 architecture names. Since architectures are registered during the
1052 _initialize phase this function only returns useful information
1053 once initialization has been completed. */
1055 extern const char **gdbarch_printable_names (void);
1058 /* Helper function. Search the list of ARCHES for a GDBARCH that
1059 matches the information provided by INFO. */
1061 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1064 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1065 basic initialization using values obtained from the INFO andTDEP
1066 parameters. set_gdbarch_*() functions are called to complete the
1067 initialization of the object. */
1069 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1072 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1073 It is assumed that the caller freeds the \`\`struct
1076 extern void gdbarch_free (struct gdbarch *);
1079 /* Helper function. Force an update of the current architecture.
1081 The actual architecture selected is determined by INFO, \`\`(gdb) set
1082 architecture'' et.al., the existing architecture and BFD's default
1083 architecture. INFO should be initialized to zero and then selected
1084 fields should be updated.
1086 Returns non-zero if the update succeeds */
1088 extern int gdbarch_update_p (struct gdbarch_info info);
1092 /* Register per-architecture data-pointer.
1094 Reserve space for a per-architecture data-pointer. An identifier
1095 for the reserved data-pointer is returned. That identifer should
1096 be saved in a local static variable.
1098 The per-architecture data-pointer is either initialized explicitly
1099 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1100 gdbarch_data()). FREE() is called to delete either an existing
1101 data-pointer overridden by set_gdbarch_data() or when the
1102 architecture object is being deleted.
1104 When a previously created architecture is re-selected, the
1105 per-architecture data-pointer for that previous architecture is
1106 restored. INIT() is not re-called.
1108 Multiple registrarants for any architecture are allowed (and
1109 strongly encouraged). */
1111 struct gdbarch_data;
1113 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1114 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1116 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1117 gdbarch_data_free_ftype *free);
1118 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1119 struct gdbarch_data *data,
1122 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1125 /* Register per-architecture memory region.
1127 Provide a memory-region swap mechanism. Per-architecture memory
1128 region are created. These memory regions are swapped whenever the
1129 architecture is changed. For a new architecture, the memory region
1130 is initialized with zero (0) and the INIT function is called.
1132 Memory regions are swapped / initialized in the order that they are
1133 registered. NULL DATA and/or INIT values can be specified.
1135 New code should use register_gdbarch_data(). */
1137 typedef void (gdbarch_swap_ftype) (void);
1138 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1139 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1143 /* The target-system-dependent byte order is dynamic */
1145 extern int target_byte_order;
1146 #ifndef TARGET_BYTE_ORDER
1147 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1150 extern int target_byte_order_auto;
1151 #ifndef TARGET_BYTE_ORDER_AUTO
1152 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1157 /* The target-system-dependent BFD architecture is dynamic */
1159 extern int target_architecture_auto;
1160 #ifndef TARGET_ARCHITECTURE_AUTO
1161 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1164 extern const struct bfd_arch_info *target_architecture;
1165 #ifndef TARGET_ARCHITECTURE
1166 #define TARGET_ARCHITECTURE (target_architecture + 0)
1170 /* The target-system-dependent disassembler is semi-dynamic */
1172 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1173 unsigned int len, disassemble_info *info);
1175 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1176 disassemble_info *info);
1178 extern void dis_asm_print_address (bfd_vma addr,
1179 disassemble_info *info);
1181 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1182 extern disassemble_info tm_print_insn_info;
1183 #ifndef TARGET_PRINT_INSN_INFO
1184 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1189 /* Set the dynamic target-system-dependent parameters (architecture,
1190 byte-order, ...) using information found in the BFD */
1192 extern void set_gdbarch_from_file (bfd *);
1195 /* Initialize the current architecture to the "first" one we find on
1198 extern void initialize_current_architecture (void);
1200 /* For non-multiarched targets, do any initialization of the default
1201 gdbarch object necessary after the _initialize_MODULE functions
1203 extern void initialize_non_multiarch (void);
1205 /* gdbarch trace variable */
1206 extern int gdbarch_debug;
1208 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1213 #../move-if-change new-gdbarch.h gdbarch.h
1214 compare_new gdbarch.h
1221 exec > new-gdbarch.c
1226 #include "arch-utils.h"
1230 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1232 /* Just include everything in sight so that the every old definition
1233 of macro is visible. */
1234 #include "gdb_string.h"
1238 #include "inferior.h"
1239 #include "breakpoint.h"
1240 #include "gdb_wait.h"
1241 #include "gdbcore.h"
1244 #include "gdbthread.h"
1245 #include "annotate.h"
1246 #include "symfile.h" /* for overlay functions */
1247 #include "value.h" /* For old tm.h/nm.h macros. */
1251 #include "floatformat.h"
1253 #include "gdb_assert.h"
1254 #include "gdb_string.h"
1255 #include "gdb-events.h"
1257 /* Static function declarations */
1259 static void verify_gdbarch (struct gdbarch *gdbarch);
1260 static void alloc_gdbarch_data (struct gdbarch *);
1261 static void free_gdbarch_data (struct gdbarch *);
1262 static void init_gdbarch_swap (struct gdbarch *);
1263 static void clear_gdbarch_swap (struct gdbarch *);
1264 static void swapout_gdbarch_swap (struct gdbarch *);
1265 static void swapin_gdbarch_swap (struct gdbarch *);
1267 /* Non-zero if we want to trace architecture code. */
1269 #ifndef GDBARCH_DEBUG
1270 #define GDBARCH_DEBUG 0
1272 int gdbarch_debug = GDBARCH_DEBUG;
1276 # gdbarch open the gdbarch object
1278 printf "/* Maintain the struct gdbarch object */\n"
1280 printf "struct gdbarch\n"
1282 printf " /* Has this architecture been fully initialized? */\n"
1283 printf " int initialized_p;\n"
1284 printf " /* basic architectural information */\n"
1285 function_list |
while do_read
1289 printf " ${returntype} ${function};\n"
1293 printf " /* target specific vector. */\n"
1294 printf " struct gdbarch_tdep *tdep;\n"
1295 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1297 printf " /* per-architecture data-pointers */\n"
1298 printf " unsigned nr_data;\n"
1299 printf " void **data;\n"
1301 printf " /* per-architecture swap-regions */\n"
1302 printf " struct gdbarch_swap *swap;\n"
1305 /* Multi-arch values.
1307 When extending this structure you must:
1309 Add the field below.
1311 Declare set/get functions and define the corresponding
1314 gdbarch_alloc(): If zero/NULL is not a suitable default,
1315 initialize the new field.
1317 verify_gdbarch(): Confirm that the target updated the field
1320 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1323 \`\`startup_gdbarch()'': Append an initial value to the static
1324 variable (base values on the host's c-type system).
1326 get_gdbarch(): Implement the set/get functions (probably using
1327 the macro's as shortcuts).
1332 function_list |
while do_read
1334 if class_is_variable_p
1336 printf " ${returntype} ${function};\n"
1337 elif class_is_function_p
1339 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1344 # A pre-initialized vector
1348 /* The default architecture uses host values (for want of a better
1352 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1354 printf "struct gdbarch startup_gdbarch =\n"
1356 printf " 1, /* Always initialized. */\n"
1357 printf " /* basic architecture information */\n"
1358 function_list |
while do_read
1362 printf " ${staticdefault},\n"
1366 /* target specific vector and its dump routine */
1368 /*per-architecture data-pointers and swap regions */
1370 /* Multi-arch values */
1372 function_list |
while do_read
1374 if class_is_function_p || class_is_variable_p
1376 printf " ${staticdefault},\n"
1380 /* startup_gdbarch() */
1383 struct gdbarch *current_gdbarch = &startup_gdbarch;
1385 /* Do any initialization needed for a non-multiarch configuration
1386 after the _initialize_MODULE functions have been run. */
1388 initialize_non_multiarch (void)
1390 alloc_gdbarch_data (&startup_gdbarch);
1391 /* Ensure that all swap areas are zeroed so that they again think
1392 they are starting from scratch. */
1393 clear_gdbarch_swap (&startup_gdbarch);
1394 init_gdbarch_swap (&startup_gdbarch);
1398 # Create a new gdbarch struct
1402 /* Create a new \`\`struct gdbarch'' based on information provided by
1403 \`\`struct gdbarch_info''. */
1408 gdbarch_alloc (const struct gdbarch_info *info,
1409 struct gdbarch_tdep *tdep)
1411 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1412 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1413 the current local architecture and not the previous global
1414 architecture. This ensures that the new architectures initial
1415 values are not influenced by the previous architecture. Once
1416 everything is parameterised with gdbarch, this will go away. */
1417 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1418 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1420 alloc_gdbarch_data (current_gdbarch);
1422 current_gdbarch->tdep = tdep;
1425 function_list |
while do_read
1429 printf " current_gdbarch->${function} = info->${function};\n"
1433 printf " /* Force the explicit initialization of these. */\n"
1434 function_list |
while do_read
1436 if class_is_function_p || class_is_variable_p
1438 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1440 printf " current_gdbarch->${function} = ${predefault};\n"
1445 /* gdbarch_alloc() */
1447 return current_gdbarch;
1451 # Free a gdbarch struct.
1455 /* Free a gdbarch struct. This should never happen in normal
1456 operation --- once you've created a gdbarch, you keep it around.
1457 However, if an architecture's init function encounters an error
1458 building the structure, it may need to clean up a partially
1459 constructed gdbarch. */
1462 gdbarch_free (struct gdbarch *arch)
1464 gdb_assert (arch != NULL);
1465 free_gdbarch_data (arch);
1470 # verify a new architecture
1473 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1477 verify_gdbarch (struct gdbarch *gdbarch)
1479 struct ui_file *log;
1480 struct cleanup *cleanups;
1483 /* Only perform sanity checks on a multi-arch target. */
1484 if (!GDB_MULTI_ARCH)
1486 log = mem_fileopen ();
1487 cleanups = make_cleanup_ui_file_delete (log);
1489 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1490 fprintf_unfiltered (log, "\n\tbyte-order");
1491 if (gdbarch->bfd_arch_info == NULL)
1492 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1493 /* Check those that need to be defined for the given multi-arch level. */
1495 function_list |
while do_read
1497 if class_is_function_p || class_is_variable_p
1499 if [ "x${invalid_p}" = "x0" ]
1501 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1502 elif class_is_predicate_p
1504 printf " /* Skip verify of ${function}, has predicate */\n"
1505 # FIXME: See do_read for potential simplification
1506 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1508 printf " if (${invalid_p})\n"
1509 printf " gdbarch->${function} = ${postdefault};\n"
1510 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1512 printf " if (gdbarch->${function} == ${predefault})\n"
1513 printf " gdbarch->${function} = ${postdefault};\n"
1514 elif [ -n "${postdefault}" ]
1516 printf " if (gdbarch->${function} == 0)\n"
1517 printf " gdbarch->${function} = ${postdefault};\n"
1518 elif [ -n "${invalid_p}" ]
1520 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1521 printf " && (${invalid_p}))\n"
1522 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1523 elif [ -n "${predefault}" ]
1525 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1526 printf " && (gdbarch->${function} == ${predefault}))\n"
1527 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1532 buf = ui_file_xstrdup (log, &dummy);
1533 make_cleanup (xfree, buf);
1534 if (strlen (buf) > 0)
1535 internal_error (__FILE__, __LINE__,
1536 "verify_gdbarch: the following are invalid ...%s",
1538 do_cleanups (cleanups);
1542 # dump the structure
1546 /* Print out the details of the current architecture. */
1548 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1549 just happens to match the global variable \`\`current_gdbarch''. That
1550 way macros refering to that variable get the local and not the global
1551 version - ulgh. Once everything is parameterised with gdbarch, this
1555 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1557 fprintf_unfiltered (file,
1558 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1561 function_list |
sort -t: +2 |
while do_read
1563 # multiarch functions don't have macros.
1564 if class_is_multiarch_p
1566 printf " if (GDB_MULTI_ARCH)\n"
1567 printf " fprintf_unfiltered (file,\n"
1568 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1569 printf " (long) current_gdbarch->${function});\n"
1572 # Print the macro definition.
1573 printf "#ifdef ${macro}\n"
1574 if [ "x${returntype}" = "xvoid" ]
1576 printf "#if GDB_MULTI_ARCH\n"
1577 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1579 if class_is_function_p
1581 printf " fprintf_unfiltered (file,\n"
1582 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1583 printf " \"${macro}(${actual})\",\n"
1584 printf " XSTRING (${macro} (${actual})));\n"
1586 printf " fprintf_unfiltered (file,\n"
1587 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1588 printf " XSTRING (${macro}));\n"
1590 # Print the architecture vector value
1591 if [ "x${returntype}" = "xvoid" ]
1595 if [ "x${print_p}" = "x()" ]
1597 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1598 elif [ "x${print_p}" = "x0" ]
1600 printf " /* skip print of ${macro}, print_p == 0. */\n"
1601 elif [ -n "${print_p}" ]
1603 printf " if (${print_p})\n"
1604 printf " fprintf_unfiltered (file,\n"
1605 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1606 printf " ${print});\n"
1607 elif class_is_function_p
1609 printf " if (GDB_MULTI_ARCH)\n"
1610 printf " fprintf_unfiltered (file,\n"
1611 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1612 printf " (long) current_gdbarch->${function}\n"
1613 printf " /*${macro} ()*/);\n"
1615 printf " fprintf_unfiltered (file,\n"
1616 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1617 printf " ${print});\n"
1622 if (current_gdbarch->dump_tdep != NULL)
1623 current_gdbarch->dump_tdep (current_gdbarch, file);
1631 struct gdbarch_tdep *
1632 gdbarch_tdep (struct gdbarch *gdbarch)
1634 if (gdbarch_debug >= 2)
1635 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1636 return gdbarch->tdep;
1640 function_list |
while do_read
1642 if class_is_predicate_p
1646 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1648 printf " gdb_assert (gdbarch != NULL);\n"
1649 if [ -n "${valid_p}" ]
1651 printf " return ${valid_p};\n"
1653 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1657 if class_is_function_p
1660 printf "${returntype}\n"
1661 if [ "x${formal}" = "xvoid" ]
1663 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1665 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1668 printf " gdb_assert (gdbarch != NULL);\n"
1669 printf " if (gdbarch->${function} == 0)\n"
1670 printf " internal_error (__FILE__, __LINE__,\n"
1671 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1672 printf " if (gdbarch_debug >= 2)\n"
1673 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1674 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1676 if class_is_multiarch_p
1683 if class_is_multiarch_p
1685 params
="gdbarch, ${actual}"
1690 if [ "x${returntype}" = "xvoid" ]
1692 printf " gdbarch->${function} (${params});\n"
1694 printf " return gdbarch->${function} (${params});\n"
1699 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1700 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1702 printf " gdbarch->${function} = ${function};\n"
1704 elif class_is_variable_p
1707 printf "${returntype}\n"
1708 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1710 printf " gdb_assert (gdbarch != NULL);\n"
1711 if [ "x${invalid_p}" = "x0" ]
1713 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1714 elif [ -n "${invalid_p}" ]
1716 printf " if (${invalid_p})\n"
1717 printf " internal_error (__FILE__, __LINE__,\n"
1718 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1719 elif [ -n "${predefault}" ]
1721 printf " if (gdbarch->${function} == ${predefault})\n"
1722 printf " internal_error (__FILE__, __LINE__,\n"
1723 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1725 printf " if (gdbarch_debug >= 2)\n"
1726 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1727 printf " return gdbarch->${function};\n"
1731 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1732 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1734 printf " gdbarch->${function} = ${function};\n"
1736 elif class_is_info_p
1739 printf "${returntype}\n"
1740 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1742 printf " gdb_assert (gdbarch != NULL);\n"
1743 printf " if (gdbarch_debug >= 2)\n"
1744 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1745 printf " return gdbarch->${function};\n"
1750 # All the trailing guff
1754 /* Keep a registry of per-architecture data-pointers required by GDB
1761 gdbarch_data_init_ftype *init;
1762 gdbarch_data_free_ftype *free;
1765 struct gdbarch_data_registration
1767 struct gdbarch_data *data;
1768 struct gdbarch_data_registration *next;
1771 struct gdbarch_data_registry
1774 struct gdbarch_data_registration *registrations;
1777 struct gdbarch_data_registry gdbarch_data_registry =
1782 struct gdbarch_data *
1783 register_gdbarch_data (gdbarch_data_init_ftype *init,
1784 gdbarch_data_free_ftype *free)
1786 struct gdbarch_data_registration **curr;
1787 /* Append the new registraration. */
1788 for (curr = &gdbarch_data_registry.registrations;
1790 curr = &(*curr)->next);
1791 (*curr) = XMALLOC (struct gdbarch_data_registration);
1792 (*curr)->next = NULL;
1793 (*curr)->data = XMALLOC (struct gdbarch_data);
1794 (*curr)->data->index = gdbarch_data_registry.nr++;
1795 (*curr)->data->init = init;
1796 (*curr)->data->init_p = 1;
1797 (*curr)->data->free = free;
1798 return (*curr)->data;
1802 /* Create/delete the gdbarch data vector. */
1805 alloc_gdbarch_data (struct gdbarch *gdbarch)
1807 gdb_assert (gdbarch->data == NULL);
1808 gdbarch->nr_data = gdbarch_data_registry.nr;
1809 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1813 free_gdbarch_data (struct gdbarch *gdbarch)
1815 struct gdbarch_data_registration *rego;
1816 gdb_assert (gdbarch->data != NULL);
1817 for (rego = gdbarch_data_registry.registrations;
1821 struct gdbarch_data *data = rego->data;
1822 gdb_assert (data->index < gdbarch->nr_data);
1823 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1825 data->free (gdbarch, gdbarch->data[data->index]);
1826 gdbarch->data[data->index] = NULL;
1829 xfree (gdbarch->data);
1830 gdbarch->data = NULL;
1834 /* Initialize the current value of the specified per-architecture
1838 set_gdbarch_data (struct gdbarch *gdbarch,
1839 struct gdbarch_data *data,
1842 gdb_assert (data->index < gdbarch->nr_data);
1843 if (gdbarch->data[data->index] != NULL)
1845 gdb_assert (data->free != NULL);
1846 data->free (gdbarch, gdbarch->data[data->index]);
1848 gdbarch->data[data->index] = pointer;
1851 /* Return the current value of the specified per-architecture
1855 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1857 gdb_assert (data->index < gdbarch->nr_data);
1858 /* The data-pointer isn't initialized, call init() to get a value but
1859 only if the architecture initializaiton has completed. Otherwise
1860 punt - hope that the caller knows what they are doing. */
1861 if (gdbarch->data[data->index] == NULL
1862 && gdbarch->initialized_p)
1864 /* Be careful to detect an initialization cycle. */
1865 gdb_assert (data->init_p);
1867 gdb_assert (data->init != NULL);
1868 gdbarch->data[data->index] = data->init (gdbarch);
1870 gdb_assert (gdbarch->data[data->index] != NULL);
1872 return gdbarch->data[data->index];
1877 /* Keep a registry of swapped data required by GDB modules. */
1882 struct gdbarch_swap_registration *source;
1883 struct gdbarch_swap *next;
1886 struct gdbarch_swap_registration
1889 unsigned long sizeof_data;
1890 gdbarch_swap_ftype *init;
1891 struct gdbarch_swap_registration *next;
1894 struct gdbarch_swap_registry
1897 struct gdbarch_swap_registration *registrations;
1900 struct gdbarch_swap_registry gdbarch_swap_registry =
1906 register_gdbarch_swap (void *data,
1907 unsigned long sizeof_data,
1908 gdbarch_swap_ftype *init)
1910 struct gdbarch_swap_registration **rego;
1911 for (rego = &gdbarch_swap_registry.registrations;
1913 rego = &(*rego)->next);
1914 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1915 (*rego)->next = NULL;
1916 (*rego)->init = init;
1917 (*rego)->data = data;
1918 (*rego)->sizeof_data = sizeof_data;
1922 clear_gdbarch_swap (struct gdbarch *gdbarch)
1924 struct gdbarch_swap *curr;
1925 for (curr = gdbarch->swap;
1929 memset (curr->source->data, 0, curr->source->sizeof_data);
1934 init_gdbarch_swap (struct gdbarch *gdbarch)
1936 struct gdbarch_swap_registration *rego;
1937 struct gdbarch_swap **curr = &gdbarch->swap;
1938 for (rego = gdbarch_swap_registry.registrations;
1942 if (rego->data != NULL)
1944 (*curr) = XMALLOC (struct gdbarch_swap);
1945 (*curr)->source = rego;
1946 (*curr)->swap = xmalloc (rego->sizeof_data);
1947 (*curr)->next = NULL;
1948 curr = &(*curr)->next;
1950 if (rego->init != NULL)
1956 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1958 struct gdbarch_swap *curr;
1959 for (curr = gdbarch->swap;
1962 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1966 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1968 struct gdbarch_swap *curr;
1969 for (curr = gdbarch->swap;
1972 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1976 /* Keep a registry of the architectures known by GDB. */
1978 struct gdbarch_registration
1980 enum bfd_architecture bfd_architecture;
1981 gdbarch_init_ftype *init;
1982 gdbarch_dump_tdep_ftype *dump_tdep;
1983 struct gdbarch_list *arches;
1984 struct gdbarch_registration *next;
1987 static struct gdbarch_registration *gdbarch_registry = NULL;
1990 append_name (const char ***buf, int *nr, const char *name)
1992 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1998 gdbarch_printable_names (void)
2002 /* Accumulate a list of names based on the registed list of
2004 enum bfd_architecture a;
2006 const char **arches = NULL;
2007 struct gdbarch_registration *rego;
2008 for (rego = gdbarch_registry;
2012 const struct bfd_arch_info *ap;
2013 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2015 internal_error (__FILE__, __LINE__,
2016 "gdbarch_architecture_names: multi-arch unknown");
2019 append_name (&arches, &nr_arches, ap->printable_name);
2024 append_name (&arches, &nr_arches, NULL);
2028 /* Just return all the architectures that BFD knows. Assume that
2029 the legacy architecture framework supports them. */
2030 return bfd_arch_list ();
2035 gdbarch_register (enum bfd_architecture bfd_architecture,
2036 gdbarch_init_ftype *init,
2037 gdbarch_dump_tdep_ftype *dump_tdep)
2039 struct gdbarch_registration **curr;
2040 const struct bfd_arch_info *bfd_arch_info;
2041 /* Check that BFD recognizes this architecture */
2042 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2043 if (bfd_arch_info == NULL)
2045 internal_error (__FILE__, __LINE__,
2046 "gdbarch: Attempt to register unknown architecture (%d)",
2049 /* Check that we haven't seen this architecture before */
2050 for (curr = &gdbarch_registry;
2052 curr = &(*curr)->next)
2054 if (bfd_architecture == (*curr)->bfd_architecture)
2055 internal_error (__FILE__, __LINE__,
2056 "gdbarch: Duplicate registraration of architecture (%s)",
2057 bfd_arch_info->printable_name);
2061 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2062 bfd_arch_info->printable_name,
2065 (*curr) = XMALLOC (struct gdbarch_registration);
2066 (*curr)->bfd_architecture = bfd_architecture;
2067 (*curr)->init = init;
2068 (*curr)->dump_tdep = dump_tdep;
2069 (*curr)->arches = NULL;
2070 (*curr)->next = NULL;
2071 /* When non- multi-arch, install whatever target dump routine we've
2072 been provided - hopefully that routine has been written correctly
2073 and works regardless of multi-arch. */
2074 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2075 && startup_gdbarch.dump_tdep == NULL)
2076 startup_gdbarch.dump_tdep = dump_tdep;
2080 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2081 gdbarch_init_ftype *init)
2083 gdbarch_register (bfd_architecture, init, NULL);
2087 /* Look for an architecture using gdbarch_info. Base search on only
2088 BFD_ARCH_INFO and BYTE_ORDER. */
2090 struct gdbarch_list *
2091 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2092 const struct gdbarch_info *info)
2094 for (; arches != NULL; arches = arches->next)
2096 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2098 if (info->byte_order != arches->gdbarch->byte_order)
2106 /* Update the current architecture. Return ZERO if the update request
2110 gdbarch_update_p (struct gdbarch_info info)
2112 struct gdbarch *new_gdbarch;
2113 struct gdbarch *old_gdbarch;
2114 struct gdbarch_registration *rego;
2116 /* Fill in missing parts of the INFO struct using a number of
2117 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2119 /* \`\`(gdb) set architecture ...'' */
2120 if (info.bfd_arch_info == NULL
2121 && !TARGET_ARCHITECTURE_AUTO)
2122 info.bfd_arch_info = TARGET_ARCHITECTURE;
2123 if (info.bfd_arch_info == NULL
2124 && info.abfd != NULL
2125 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2126 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2127 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2128 if (info.bfd_arch_info == NULL)
2129 info.bfd_arch_info = TARGET_ARCHITECTURE;
2131 /* \`\`(gdb) set byte-order ...'' */
2132 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2133 && !TARGET_BYTE_ORDER_AUTO)
2134 info.byte_order = TARGET_BYTE_ORDER;
2135 /* From the INFO struct. */
2136 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2137 && info.abfd != NULL)
2138 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2139 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2140 : BFD_ENDIAN_UNKNOWN);
2141 /* From the current target. */
2142 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2143 info.byte_order = TARGET_BYTE_ORDER;
2145 /* Must have found some sort of architecture. */
2146 gdb_assert (info.bfd_arch_info != NULL);
2150 fprintf_unfiltered (gdb_stdlog,
2151 "gdbarch_update: info.bfd_arch_info %s\n",
2152 (info.bfd_arch_info != NULL
2153 ? info.bfd_arch_info->printable_name
2155 fprintf_unfiltered (gdb_stdlog,
2156 "gdbarch_update: info.byte_order %d (%s)\n",
2158 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2159 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2161 fprintf_unfiltered (gdb_stdlog,
2162 "gdbarch_update: info.abfd 0x%lx\n",
2164 fprintf_unfiltered (gdb_stdlog,
2165 "gdbarch_update: info.tdep_info 0x%lx\n",
2166 (long) info.tdep_info);
2169 /* Find the target that knows about this architecture. */
2170 for (rego = gdbarch_registry;
2173 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2178 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2182 /* Swap the data belonging to the old target out setting the
2183 installed data to zero. This stops the ->init() function trying
2184 to refer to the previous architecture's global data structures. */
2185 swapout_gdbarch_swap (current_gdbarch);
2186 clear_gdbarch_swap (current_gdbarch);
2188 /* Save the previously selected architecture, setting the global to
2189 NULL. This stops ->init() trying to use the previous
2190 architecture's configuration. The previous architecture may not
2191 even be of the same architecture family. The most recent
2192 architecture of the same family is found at the head of the
2193 rego->arches list. */
2194 old_gdbarch = current_gdbarch;
2195 current_gdbarch = NULL;
2197 /* Ask the target for a replacement architecture. */
2198 new_gdbarch = rego->init (info, rego->arches);
2200 /* Did the target like it? No. Reject the change and revert to the
2201 old architecture. */
2202 if (new_gdbarch == NULL)
2205 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2206 swapin_gdbarch_swap (old_gdbarch);
2207 current_gdbarch = old_gdbarch;
2211 /* Did the architecture change? No. Oops, put the old architecture
2213 if (old_gdbarch == new_gdbarch)
2216 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2218 new_gdbarch->bfd_arch_info->printable_name);
2219 swapin_gdbarch_swap (old_gdbarch);
2220 current_gdbarch = old_gdbarch;
2224 /* Is this a pre-existing architecture? Yes. Move it to the front
2225 of the list of architectures (keeping the list sorted Most
2226 Recently Used) and then copy it in. */
2228 struct gdbarch_list **list;
2229 for (list = ®o->arches;
2231 list = &(*list)->next)
2233 if ((*list)->gdbarch == new_gdbarch)
2235 struct gdbarch_list *this;
2237 fprintf_unfiltered (gdb_stdlog,
2238 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2240 new_gdbarch->bfd_arch_info->printable_name);
2243 (*list) = this->next;
2244 /* Insert in the front. */
2245 this->next = rego->arches;
2246 rego->arches = this;
2247 /* Copy the new architecture in. */
2248 current_gdbarch = new_gdbarch;
2249 swapin_gdbarch_swap (new_gdbarch);
2250 architecture_changed_event ();
2256 /* Prepend this new architecture to the architecture list (keep the
2257 list sorted Most Recently Used). */
2259 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2260 this->next = rego->arches;
2261 this->gdbarch = new_gdbarch;
2262 rego->arches = this;
2265 /* Switch to this new architecture marking it initialized. */
2266 current_gdbarch = new_gdbarch;
2267 current_gdbarch->initialized_p = 1;
2270 fprintf_unfiltered (gdb_stdlog,
2271 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2273 new_gdbarch->bfd_arch_info->printable_name);
2276 /* Check that the newly installed architecture is valid. Plug in
2277 any post init values. */
2278 new_gdbarch->dump_tdep = rego->dump_tdep;
2279 verify_gdbarch (new_gdbarch);
2281 /* Initialize the per-architecture memory (swap) areas.
2282 CURRENT_GDBARCH must be update before these modules are
2284 init_gdbarch_swap (new_gdbarch);
2286 /* Initialize the per-architecture data. CURRENT_GDBARCH
2287 must be updated before these modules are called. */
2288 architecture_changed_event ();
2291 gdbarch_dump (current_gdbarch, gdb_stdlog);
2299 /* Pointer to the target-dependent disassembly function. */
2300 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2301 disassemble_info tm_print_insn_info;
2304 extern void _initialize_gdbarch (void);
2307 _initialize_gdbarch (void)
2309 struct cmd_list_element *c;
2311 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2312 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2313 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2314 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2315 tm_print_insn_info.print_address_func = dis_asm_print_address;
2317 add_show_from_set (add_set_cmd ("arch",
2320 (char *)&gdbarch_debug,
2321 "Set architecture debugging.\\n\\
2322 When non-zero, architecture debugging is enabled.", &setdebuglist),
2324 c = add_set_cmd ("archdebug",
2327 (char *)&gdbarch_debug,
2328 "Set architecture debugging.\\n\\
2329 When non-zero, architecture debugging is enabled.", &setlist);
2331 deprecate_cmd (c, "set debug arch");
2332 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2338 #../move-if-change new-gdbarch.c gdbarch.c
2339 compare_new gdbarch.c