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: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 v:2:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0:::
576 F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0
577 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0
578 v:2:PARM_BOUNDARY:int:parm_boundary
580 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch)
581 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch)
582 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (gdbarch)
583 f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0
584 # On some machines there are bits in addresses which are not really
585 # part of the address, but are used by the kernel, the hardware, etc.
586 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
587 # we get a "real" address such as one would find in a symbol table.
588 # This is used only for addresses of instructions, and even then I'm
589 # not sure it's used in all contexts. It exists to deal with there
590 # being a few stray bits in the PC which would mislead us, not as some
591 # sort of generic thing to handle alignment or segmentation (it's
592 # possible it should be in TARGET_READ_PC instead).
593 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
594 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
596 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
597 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
598 # the target needs software single step. An ISA method to implement it.
600 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
601 # using the breakpoint system instead of blatting memory directly (as with rs6000).
603 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
604 # single step. If not, then implement single step using breakpoints.
605 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0
606 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0
607 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
610 # For SVR4 shared libraries, each call goes through a small piece of
611 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
612 # to nonzero if we are currently stopped in one of these.
613 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
615 # Some systems also have trampoline code for returning from shared libs.
616 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
618 # Sigtramp is a routine that the kernel calls (which then calls the
619 # signal handler). On most machines it is a library routine that is
620 # linked into the executable.
622 # This macro, given a program counter value and the name of the
623 # function in which that PC resides (which can be null if the name is
624 # not known), returns nonzero if the PC and name show that we are in
627 # On most machines just see if the name is sigtramp (and if we have
628 # no name, assume we are not in sigtramp).
630 # FIXME: cagney/2002-04-21: The function find_pc_partial_function
631 # calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP.
632 # This means PC_IN_SIGTRAMP function can't be implemented by doing its
633 # own local NAME lookup.
635 # FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess.
636 # Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other
638 f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0
639 F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc
640 f:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc:::::0
641 # A target might have problems with watchpoints as soon as the stack
642 # frame of the current function has been destroyed. This mostly happens
643 # as the first action in a funtion's epilogue. in_function_epilogue_p()
644 # is defined to return a non-zero value if either the given addr is one
645 # instruction after the stack destroying instruction up to the trailing
646 # return instruction or if we can figure out that the stack frame has
647 # already been invalidated regardless of the value of addr. Targets
648 # which don't suffer from that problem could just let this functionality
650 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
651 # Given a vector of command-line arguments, return a newly allocated
652 # string which, when passed to the create_inferior function, will be
653 # parsed (on Unix systems, by the shell) to yield the same vector.
654 # This function should call error() if the argument vector is not
655 # representable for this target or if this target does not support
656 # command-line arguments.
657 # ARGC is the number of elements in the vector.
658 # ARGV is an array of strings, one per argument.
659 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
660 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0
661 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
662 f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0
669 exec > new-gdbarch.log
670 function_list |
while do_read
673 ${class} ${macro}(${actual})
674 ${returntype} ${function} ($formal)${attrib}
678 eval echo \"\ \ \ \
${r}=\
${${r}}\"
680 # #fallbackdefault=${fallbackdefault}
681 # #valid_p=${valid_p}
683 if class_is_predicate_p
&& fallback_default_p
685 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
689 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
691 echo "Error: postdefault is useless when invalid_p=0" 1>&2
695 if class_is_multiarch_p
697 if class_is_predicate_p
; then :
698 elif test "x${predefault}" = "x"
700 echo "Error: pure multi-arch function must have a predefault" 1>&2
709 compare_new gdbarch.log
715 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
717 /* Dynamic architecture support for GDB, the GNU debugger.
718 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
720 This file is part of GDB.
722 This program is free software; you can redistribute it and/or modify
723 it under the terms of the GNU General Public License as published by
724 the Free Software Foundation; either version 2 of the License, or
725 (at your option) any later version.
727 This program is distributed in the hope that it will be useful,
728 but WITHOUT ANY WARRANTY; without even the implied warranty of
729 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
730 GNU General Public License for more details.
732 You should have received a copy of the GNU General Public License
733 along with this program; if not, write to the Free Software
734 Foundation, Inc., 59 Temple Place - Suite 330,
735 Boston, MA 02111-1307, USA. */
737 /* This file was created with the aid of \`\`gdbarch.sh''.
739 The Bourne shell script \`\`gdbarch.sh'' creates the files
740 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
741 against the existing \`\`gdbarch.[hc]''. Any differences found
744 If editing this file, please also run gdbarch.sh and merge any
745 changes into that script. Conversely, when making sweeping changes
746 to this file, modifying gdbarch.sh and using its output may prove
762 #include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */
764 /* Pull in function declarations refered to, indirectly, via macros. */
765 #include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */
766 #include "inferior.h" /* For unsigned_address_to_pointer(). */
772 struct minimal_symbol;
775 extern struct gdbarch *current_gdbarch;
778 /* If any of the following are defined, the target wasn't correctly
782 #if defined (EXTRA_FRAME_INFO)
783 #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info"
788 #if defined (FRAME_FIND_SAVED_REGS)
789 #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS"
793 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
794 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
801 printf "/* The following are pre-initialized by GDBARCH. */\n"
802 function_list |
while do_read
807 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
808 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
809 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
810 printf "#error \"Non multi-arch definition of ${macro}\"\n"
812 printf "#if GDB_MULTI_ARCH\n"
813 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
814 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
823 printf "/* The following are initialized by the target dependent code. */\n"
824 function_list |
while do_read
826 if [ -n "${comment}" ]
828 echo "${comment}" |
sed \
833 if class_is_multiarch_p
835 if class_is_predicate_p
838 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
841 if class_is_predicate_p
844 printf "#if defined (${macro})\n"
845 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
846 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
847 printf "#if !defined (${macro}_P)\n"
848 printf "#define ${macro}_P() (1)\n"
852 printf "/* Default predicate for non- multi-arch targets. */\n"
853 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n"
854 printf "#define ${macro}_P() (0)\n"
857 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
858 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
859 printf "#error \"Non multi-arch definition of ${macro}\"\n"
861 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
862 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
866 if class_is_variable_p
868 if fallback_default_p || class_is_predicate_p
871 printf "/* Default (value) for non- multi-arch platforms. */\n"
872 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
873 echo "#define ${macro} (${fallbackdefault})" \
874 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
878 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
879 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
880 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
881 printf "#error \"Non multi-arch definition of ${macro}\"\n"
883 printf "#if GDB_MULTI_ARCH\n"
884 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
885 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
889 if class_is_function_p
891 if class_is_multiarch_p
; then :
892 elif fallback_default_p || class_is_predicate_p
895 printf "/* Default (function) for non- multi-arch platforms. */\n"
896 printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n"
897 if [ "x${fallbackdefault}" = "x0" ]
899 printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n"
901 # FIXME: Should be passing current_gdbarch through!
902 echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \
903 |
sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g'
908 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
910 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
911 elif class_is_multiarch_p
913 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
915 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
917 if [ "x${formal}" = "xvoid" ]
919 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
921 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
923 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
924 if class_is_multiarch_p
; then :
926 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
927 printf "#error \"Non multi-arch definition of ${macro}\"\n"
929 printf "#if GDB_MULTI_ARCH\n"
930 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro})\n"
931 if [ "x${actual}" = "x" ]
933 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
934 elif [ "x${actual}" = "x-" ]
936 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
938 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
949 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
952 /* Mechanism for co-ordinating the selection of a specific
955 GDB targets (*-tdep.c) can register an interest in a specific
956 architecture. Other GDB components can register a need to maintain
957 per-architecture data.
959 The mechanisms below ensures that there is only a loose connection
960 between the set-architecture command and the various GDB
961 components. Each component can independently register their need
962 to maintain architecture specific data with gdbarch.
966 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
969 The more traditional mega-struct containing architecture specific
970 data for all the various GDB components was also considered. Since
971 GDB is built from a variable number of (fairly independent)
972 components it was determined that the global aproach was not
976 /* Register a new architectural family with GDB.
978 Register support for the specified ARCHITECTURE with GDB. When
979 gdbarch determines that the specified architecture has been
980 selected, the corresponding INIT function is called.
984 The INIT function takes two parameters: INFO which contains the
985 information available to gdbarch about the (possibly new)
986 architecture; ARCHES which is a list of the previously created
987 \`\`struct gdbarch'' for this architecture.
989 The INFO parameter is, as far as possible, be pre-initialized with
990 information obtained from INFO.ABFD or the previously selected
993 The ARCHES parameter is a linked list (sorted most recently used)
994 of all the previously created architures for this architecture
995 family. The (possibly NULL) ARCHES->gdbarch can used to access
996 values from the previously selected architecture for this
997 architecture family. The global \`\`current_gdbarch'' shall not be
1000 The INIT function shall return any of: NULL - indicating that it
1001 doesn't recognize the selected architecture; an existing \`\`struct
1002 gdbarch'' from the ARCHES list - indicating that the new
1003 architecture is just a synonym for an earlier architecture (see
1004 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1005 - that describes the selected architecture (see gdbarch_alloc()).
1007 The DUMP_TDEP function shall print out all target specific values.
1008 Care should be taken to ensure that the function works in both the
1009 multi-arch and non- multi-arch cases. */
1013 struct gdbarch *gdbarch;
1014 struct gdbarch_list *next;
1019 /* Use default: NULL (ZERO). */
1020 const struct bfd_arch_info *bfd_arch_info;
1022 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1025 /* Use default: NULL (ZERO). */
1028 /* Use default: NULL (ZERO). */
1029 struct gdbarch_tdep_info *tdep_info;
1032 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1033 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1035 /* DEPRECATED - use gdbarch_register() */
1036 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1038 extern void gdbarch_register (enum bfd_architecture architecture,
1039 gdbarch_init_ftype *,
1040 gdbarch_dump_tdep_ftype *);
1043 /* Return a freshly allocated, NULL terminated, array of the valid
1044 architecture names. Since architectures are registered during the
1045 _initialize phase this function only returns useful information
1046 once initialization has been completed. */
1048 extern const char **gdbarch_printable_names (void);
1051 /* Helper function. Search the list of ARCHES for a GDBARCH that
1052 matches the information provided by INFO. */
1054 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1057 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1058 basic initialization using values obtained from the INFO andTDEP
1059 parameters. set_gdbarch_*() functions are called to complete the
1060 initialization of the object. */
1062 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1065 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1066 It is assumed that the caller freeds the \`\`struct
1069 extern void gdbarch_free (struct gdbarch *);
1072 /* Helper function. Force an update of the current architecture.
1074 The actual architecture selected is determined by INFO, \`\`(gdb) set
1075 architecture'' et.al., the existing architecture and BFD's default
1076 architecture. INFO should be initialized to zero and then selected
1077 fields should be updated.
1079 Returns non-zero if the update succeeds */
1081 extern int gdbarch_update_p (struct gdbarch_info info);
1085 /* Register per-architecture data-pointer.
1087 Reserve space for a per-architecture data-pointer. An identifier
1088 for the reserved data-pointer is returned. That identifer should
1089 be saved in a local static variable.
1091 The per-architecture data-pointer is either initialized explicitly
1092 (set_gdbarch_data()) or implicitly (by INIT() via a call to
1093 gdbarch_data()). FREE() is called to delete either an existing
1094 data-pointer overridden by set_gdbarch_data() or when the
1095 architecture object is being deleted.
1097 When a previously created architecture is re-selected, the
1098 per-architecture data-pointer for that previous architecture is
1099 restored. INIT() is not re-called.
1101 Multiple registrarants for any architecture are allowed (and
1102 strongly encouraged). */
1104 struct gdbarch_data;
1106 typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch);
1107 typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch,
1109 extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init,
1110 gdbarch_data_free_ftype *free);
1111 extern void set_gdbarch_data (struct gdbarch *gdbarch,
1112 struct gdbarch_data *data,
1115 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1118 /* Register per-architecture memory region.
1120 Provide a memory-region swap mechanism. Per-architecture memory
1121 region are created. These memory regions are swapped whenever the
1122 architecture is changed. For a new architecture, the memory region
1123 is initialized with zero (0) and the INIT function is called.
1125 Memory regions are swapped / initialized in the order that they are
1126 registered. NULL DATA and/or INIT values can be specified.
1128 New code should use register_gdbarch_data(). */
1130 typedef void (gdbarch_swap_ftype) (void);
1131 extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1132 #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1136 /* The target-system-dependent byte order is dynamic */
1138 extern int target_byte_order;
1139 #ifndef TARGET_BYTE_ORDER
1140 #define TARGET_BYTE_ORDER (target_byte_order + 0)
1143 extern int target_byte_order_auto;
1144 #ifndef TARGET_BYTE_ORDER_AUTO
1145 #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0)
1150 /* The target-system-dependent BFD architecture is dynamic */
1152 extern int target_architecture_auto;
1153 #ifndef TARGET_ARCHITECTURE_AUTO
1154 #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0)
1157 extern const struct bfd_arch_info *target_architecture;
1158 #ifndef TARGET_ARCHITECTURE
1159 #define TARGET_ARCHITECTURE (target_architecture + 0)
1163 /* The target-system-dependent disassembler is semi-dynamic */
1165 extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr,
1166 unsigned int len, disassemble_info *info);
1168 extern void dis_asm_memory_error (int status, bfd_vma memaddr,
1169 disassemble_info *info);
1171 extern void dis_asm_print_address (bfd_vma addr,
1172 disassemble_info *info);
1174 extern int (*tm_print_insn) (bfd_vma, disassemble_info*);
1175 extern disassemble_info tm_print_insn_info;
1176 #ifndef TARGET_PRINT_INSN_INFO
1177 #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info)
1182 /* Set the dynamic target-system-dependent parameters (architecture,
1183 byte-order, ...) using information found in the BFD */
1185 extern void set_gdbarch_from_file (bfd *);
1188 /* Initialize the current architecture to the "first" one we find on
1191 extern void initialize_current_architecture (void);
1193 /* For non-multiarched targets, do any initialization of the default
1194 gdbarch object necessary after the _initialize_MODULE functions
1196 extern void initialize_non_multiarch (void);
1198 /* gdbarch trace variable */
1199 extern int gdbarch_debug;
1201 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1206 #../move-if-change new-gdbarch.h gdbarch.h
1207 compare_new gdbarch.h
1214 exec > new-gdbarch.c
1219 #include "arch-utils.h"
1223 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1225 /* Just include everything in sight so that the every old definition
1226 of macro is visible. */
1227 #include "gdb_string.h"
1231 #include "inferior.h"
1232 #include "breakpoint.h"
1233 #include "gdb_wait.h"
1234 #include "gdbcore.h"
1237 #include "gdbthread.h"
1238 #include "annotate.h"
1239 #include "symfile.h" /* for overlay functions */
1240 #include "value.h" /* For old tm.h/nm.h macros. */
1244 #include "floatformat.h"
1246 #include "gdb_assert.h"
1247 #include "gdb_string.h"
1248 #include "gdb-events.h"
1250 /* Static function declarations */
1252 static void verify_gdbarch (struct gdbarch *gdbarch);
1253 static void alloc_gdbarch_data (struct gdbarch *);
1254 static void free_gdbarch_data (struct gdbarch *);
1255 static void init_gdbarch_swap (struct gdbarch *);
1256 static void clear_gdbarch_swap (struct gdbarch *);
1257 static void swapout_gdbarch_swap (struct gdbarch *);
1258 static void swapin_gdbarch_swap (struct gdbarch *);
1260 /* Non-zero if we want to trace architecture code. */
1262 #ifndef GDBARCH_DEBUG
1263 #define GDBARCH_DEBUG 0
1265 int gdbarch_debug = GDBARCH_DEBUG;
1269 # gdbarch open the gdbarch object
1271 printf "/* Maintain the struct gdbarch object */\n"
1273 printf "struct gdbarch\n"
1275 printf " /* Has this architecture been fully initialized? */\n"
1276 printf " int initialized_p;\n"
1277 printf " /* basic architectural information */\n"
1278 function_list |
while do_read
1282 printf " ${returntype} ${function};\n"
1286 printf " /* target specific vector. */\n"
1287 printf " struct gdbarch_tdep *tdep;\n"
1288 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1290 printf " /* per-architecture data-pointers */\n"
1291 printf " unsigned nr_data;\n"
1292 printf " void **data;\n"
1294 printf " /* per-architecture swap-regions */\n"
1295 printf " struct gdbarch_swap *swap;\n"
1298 /* Multi-arch values.
1300 When extending this structure you must:
1302 Add the field below.
1304 Declare set/get functions and define the corresponding
1307 gdbarch_alloc(): If zero/NULL is not a suitable default,
1308 initialize the new field.
1310 verify_gdbarch(): Confirm that the target updated the field
1313 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1316 \`\`startup_gdbarch()'': Append an initial value to the static
1317 variable (base values on the host's c-type system).
1319 get_gdbarch(): Implement the set/get functions (probably using
1320 the macro's as shortcuts).
1325 function_list |
while do_read
1327 if class_is_variable_p
1329 printf " ${returntype} ${function};\n"
1330 elif class_is_function_p
1332 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1337 # A pre-initialized vector
1341 /* The default architecture uses host values (for want of a better
1345 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1347 printf "struct gdbarch startup_gdbarch =\n"
1349 printf " 1, /* Always initialized. */\n"
1350 printf " /* basic architecture information */\n"
1351 function_list |
while do_read
1355 printf " ${staticdefault},\n"
1359 /* target specific vector and its dump routine */
1361 /*per-architecture data-pointers and swap regions */
1363 /* Multi-arch values */
1365 function_list |
while do_read
1367 if class_is_function_p || class_is_variable_p
1369 printf " ${staticdefault},\n"
1373 /* startup_gdbarch() */
1376 struct gdbarch *current_gdbarch = &startup_gdbarch;
1378 /* Do any initialization needed for a non-multiarch configuration
1379 after the _initialize_MODULE functions have been run. */
1381 initialize_non_multiarch (void)
1383 alloc_gdbarch_data (&startup_gdbarch);
1384 /* Ensure that all swap areas are zeroed so that they again think
1385 they are starting from scratch. */
1386 clear_gdbarch_swap (&startup_gdbarch);
1387 init_gdbarch_swap (&startup_gdbarch);
1391 # Create a new gdbarch struct
1395 /* Create a new \`\`struct gdbarch'' based on information provided by
1396 \`\`struct gdbarch_info''. */
1401 gdbarch_alloc (const struct gdbarch_info *info,
1402 struct gdbarch_tdep *tdep)
1404 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1405 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1406 the current local architecture and not the previous global
1407 architecture. This ensures that the new architectures initial
1408 values are not influenced by the previous architecture. Once
1409 everything is parameterised with gdbarch, this will go away. */
1410 struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch);
1411 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1413 alloc_gdbarch_data (current_gdbarch);
1415 current_gdbarch->tdep = tdep;
1418 function_list |
while do_read
1422 printf " current_gdbarch->${function} = info->${function};\n"
1426 printf " /* Force the explicit initialization of these. */\n"
1427 function_list |
while do_read
1429 if class_is_function_p || class_is_variable_p
1431 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1433 printf " current_gdbarch->${function} = ${predefault};\n"
1438 /* gdbarch_alloc() */
1440 return current_gdbarch;
1444 # Free a gdbarch struct.
1448 /* Free a gdbarch struct. This should never happen in normal
1449 operation --- once you've created a gdbarch, you keep it around.
1450 However, if an architecture's init function encounters an error
1451 building the structure, it may need to clean up a partially
1452 constructed gdbarch. */
1455 gdbarch_free (struct gdbarch *arch)
1457 gdb_assert (arch != NULL);
1458 free_gdbarch_data (arch);
1463 # verify a new architecture
1466 printf "/* Ensure that all values in a GDBARCH are reasonable. */\n"
1470 verify_gdbarch (struct gdbarch *gdbarch)
1472 struct ui_file *log;
1473 struct cleanup *cleanups;
1476 /* Only perform sanity checks on a multi-arch target. */
1477 if (!GDB_MULTI_ARCH)
1479 log = mem_fileopen ();
1480 cleanups = make_cleanup_ui_file_delete (log);
1482 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1483 fprintf_unfiltered (log, "\n\tbyte-order");
1484 if (gdbarch->bfd_arch_info == NULL)
1485 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1486 /* Check those that need to be defined for the given multi-arch level. */
1488 function_list |
while do_read
1490 if class_is_function_p || class_is_variable_p
1492 if [ "x${invalid_p}" = "x0" ]
1494 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1495 elif class_is_predicate_p
1497 printf " /* Skip verify of ${function}, has predicate */\n"
1498 # FIXME: See do_read for potential simplification
1499 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1501 printf " if (${invalid_p})\n"
1502 printf " gdbarch->${function} = ${postdefault};\n"
1503 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1505 printf " if (gdbarch->${function} == ${predefault})\n"
1506 printf " gdbarch->${function} = ${postdefault};\n"
1507 elif [ -n "${postdefault}" ]
1509 printf " if (gdbarch->${function} == 0)\n"
1510 printf " gdbarch->${function} = ${postdefault};\n"
1511 elif [ -n "${invalid_p}" ]
1513 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1514 printf " && (${invalid_p}))\n"
1515 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1516 elif [ -n "${predefault}" ]
1518 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1519 printf " && (gdbarch->${function} == ${predefault}))\n"
1520 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1525 buf = ui_file_xstrdup (log, &dummy);
1526 make_cleanup (xfree, buf);
1527 if (strlen (buf) > 0)
1528 internal_error (__FILE__, __LINE__,
1529 "verify_gdbarch: the following are invalid ...%s",
1531 do_cleanups (cleanups);
1535 # dump the structure
1539 /* Print out the details of the current architecture. */
1541 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1542 just happens to match the global variable \`\`current_gdbarch''. That
1543 way macros refering to that variable get the local and not the global
1544 version - ulgh. Once everything is parameterised with gdbarch, this
1548 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1550 fprintf_unfiltered (file,
1551 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1554 function_list |
sort -t: +2 |
while do_read
1556 # multiarch functions don't have macros.
1557 if class_is_multiarch_p
1559 printf " if (GDB_MULTI_ARCH)\n"
1560 printf " fprintf_unfiltered (file,\n"
1561 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1562 printf " (long) current_gdbarch->${function});\n"
1565 # Print the macro definition.
1566 printf "#ifdef ${macro}\n"
1567 if [ "x${returntype}" = "xvoid" ]
1569 printf "#if GDB_MULTI_ARCH\n"
1570 printf " /* Macro might contain \`[{}]' when not multi-arch */\n"
1572 if class_is_function_p
1574 printf " fprintf_unfiltered (file,\n"
1575 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1576 printf " \"${macro}(${actual})\",\n"
1577 printf " XSTRING (${macro} (${actual})));\n"
1579 printf " fprintf_unfiltered (file,\n"
1580 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1581 printf " XSTRING (${macro}));\n"
1583 # Print the architecture vector value
1584 if [ "x${returntype}" = "xvoid" ]
1588 if [ "x${print_p}" = "x()" ]
1590 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1591 elif [ "x${print_p}" = "x0" ]
1593 printf " /* skip print of ${macro}, print_p == 0. */\n"
1594 elif [ -n "${print_p}" ]
1596 printf " if (${print_p})\n"
1597 printf " fprintf_unfiltered (file,\n"
1598 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1599 printf " ${print});\n"
1600 elif class_is_function_p
1602 printf " if (GDB_MULTI_ARCH)\n"
1603 printf " fprintf_unfiltered (file,\n"
1604 printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n"
1605 printf " (long) current_gdbarch->${function}\n"
1606 printf " /*${macro} ()*/);\n"
1608 printf " fprintf_unfiltered (file,\n"
1609 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1610 printf " ${print});\n"
1615 if (current_gdbarch->dump_tdep != NULL)
1616 current_gdbarch->dump_tdep (current_gdbarch, file);
1624 struct gdbarch_tdep *
1625 gdbarch_tdep (struct gdbarch *gdbarch)
1627 if (gdbarch_debug >= 2)
1628 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1629 return gdbarch->tdep;
1633 function_list |
while do_read
1635 if class_is_predicate_p
1639 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1641 printf " gdb_assert (gdbarch != NULL);\n"
1642 if [ -n "${valid_p}" ]
1644 printf " return ${valid_p};\n"
1646 printf "#error \"gdbarch_${function}_p: not defined\"\n"
1650 if class_is_function_p
1653 printf "${returntype}\n"
1654 if [ "x${formal}" = "xvoid" ]
1656 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1658 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1661 printf " gdb_assert (gdbarch != NULL);\n"
1662 printf " if (gdbarch->${function} == 0)\n"
1663 printf " internal_error (__FILE__, __LINE__,\n"
1664 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1665 printf " if (gdbarch_debug >= 2)\n"
1666 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1667 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1669 if class_is_multiarch_p
1676 if class_is_multiarch_p
1678 params
="gdbarch, ${actual}"
1683 if [ "x${returntype}" = "xvoid" ]
1685 printf " gdbarch->${function} (${params});\n"
1687 printf " return gdbarch->${function} (${params});\n"
1692 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1693 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1695 printf " gdbarch->${function} = ${function};\n"
1697 elif class_is_variable_p
1700 printf "${returntype}\n"
1701 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1703 printf " gdb_assert (gdbarch != NULL);\n"
1704 if [ "x${invalid_p}" = "x0" ]
1706 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1707 elif [ -n "${invalid_p}" ]
1709 printf " if (${invalid_p})\n"
1710 printf " internal_error (__FILE__, __LINE__,\n"
1711 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1712 elif [ -n "${predefault}" ]
1714 printf " if (gdbarch->${function} == ${predefault})\n"
1715 printf " internal_error (__FILE__, __LINE__,\n"
1716 printf " \"gdbarch: gdbarch_${function} invalid\");\n"
1718 printf " if (gdbarch_debug >= 2)\n"
1719 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1720 printf " return gdbarch->${function};\n"
1724 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1725 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1727 printf " gdbarch->${function} = ${function};\n"
1729 elif class_is_info_p
1732 printf "${returntype}\n"
1733 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1735 printf " gdb_assert (gdbarch != NULL);\n"
1736 printf " if (gdbarch_debug >= 2)\n"
1737 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1738 printf " return gdbarch->${function};\n"
1743 # All the trailing guff
1747 /* Keep a registry of per-architecture data-pointers required by GDB
1754 gdbarch_data_init_ftype *init;
1755 gdbarch_data_free_ftype *free;
1758 struct gdbarch_data_registration
1760 struct gdbarch_data *data;
1761 struct gdbarch_data_registration *next;
1764 struct gdbarch_data_registry
1767 struct gdbarch_data_registration *registrations;
1770 struct gdbarch_data_registry gdbarch_data_registry =
1775 struct gdbarch_data *
1776 register_gdbarch_data (gdbarch_data_init_ftype *init,
1777 gdbarch_data_free_ftype *free)
1779 struct gdbarch_data_registration **curr;
1780 /* Append the new registraration. */
1781 for (curr = &gdbarch_data_registry.registrations;
1783 curr = &(*curr)->next);
1784 (*curr) = XMALLOC (struct gdbarch_data_registration);
1785 (*curr)->next = NULL;
1786 (*curr)->data = XMALLOC (struct gdbarch_data);
1787 (*curr)->data->index = gdbarch_data_registry.nr++;
1788 (*curr)->data->init = init;
1789 (*curr)->data->init_p = 1;
1790 (*curr)->data->free = free;
1791 return (*curr)->data;
1795 /* Create/delete the gdbarch data vector. */
1798 alloc_gdbarch_data (struct gdbarch *gdbarch)
1800 gdb_assert (gdbarch->data == NULL);
1801 gdbarch->nr_data = gdbarch_data_registry.nr;
1802 gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*));
1806 free_gdbarch_data (struct gdbarch *gdbarch)
1808 struct gdbarch_data_registration *rego;
1809 gdb_assert (gdbarch->data != NULL);
1810 for (rego = gdbarch_data_registry.registrations;
1814 struct gdbarch_data *data = rego->data;
1815 gdb_assert (data->index < gdbarch->nr_data);
1816 if (data->free != NULL && gdbarch->data[data->index] != NULL)
1818 data->free (gdbarch, gdbarch->data[data->index]);
1819 gdbarch->data[data->index] = NULL;
1822 xfree (gdbarch->data);
1823 gdbarch->data = NULL;
1827 /* Initialize the current value of the specified per-architecture
1831 set_gdbarch_data (struct gdbarch *gdbarch,
1832 struct gdbarch_data *data,
1835 gdb_assert (data->index < gdbarch->nr_data);
1836 if (gdbarch->data[data->index] != NULL)
1838 gdb_assert (data->free != NULL);
1839 data->free (gdbarch, gdbarch->data[data->index]);
1841 gdbarch->data[data->index] = pointer;
1844 /* Return the current value of the specified per-architecture
1848 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1850 gdb_assert (data->index < gdbarch->nr_data);
1851 /* The data-pointer isn't initialized, call init() to get a value but
1852 only if the architecture initializaiton has completed. Otherwise
1853 punt - hope that the caller knows what they are doing. */
1854 if (gdbarch->data[data->index] == NULL
1855 && gdbarch->initialized_p)
1857 /* Be careful to detect an initialization cycle. */
1858 gdb_assert (data->init_p);
1860 gdb_assert (data->init != NULL);
1861 gdbarch->data[data->index] = data->init (gdbarch);
1863 gdb_assert (gdbarch->data[data->index] != NULL);
1865 return gdbarch->data[data->index];
1870 /* Keep a registry of swapped data required by GDB modules. */
1875 struct gdbarch_swap_registration *source;
1876 struct gdbarch_swap *next;
1879 struct gdbarch_swap_registration
1882 unsigned long sizeof_data;
1883 gdbarch_swap_ftype *init;
1884 struct gdbarch_swap_registration *next;
1887 struct gdbarch_swap_registry
1890 struct gdbarch_swap_registration *registrations;
1893 struct gdbarch_swap_registry gdbarch_swap_registry =
1899 register_gdbarch_swap (void *data,
1900 unsigned long sizeof_data,
1901 gdbarch_swap_ftype *init)
1903 struct gdbarch_swap_registration **rego;
1904 for (rego = &gdbarch_swap_registry.registrations;
1906 rego = &(*rego)->next);
1907 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1908 (*rego)->next = NULL;
1909 (*rego)->init = init;
1910 (*rego)->data = data;
1911 (*rego)->sizeof_data = sizeof_data;
1915 clear_gdbarch_swap (struct gdbarch *gdbarch)
1917 struct gdbarch_swap *curr;
1918 for (curr = gdbarch->swap;
1922 memset (curr->source->data, 0, curr->source->sizeof_data);
1927 init_gdbarch_swap (struct gdbarch *gdbarch)
1929 struct gdbarch_swap_registration *rego;
1930 struct gdbarch_swap **curr = &gdbarch->swap;
1931 for (rego = gdbarch_swap_registry.registrations;
1935 if (rego->data != NULL)
1937 (*curr) = XMALLOC (struct gdbarch_swap);
1938 (*curr)->source = rego;
1939 (*curr)->swap = xmalloc (rego->sizeof_data);
1940 (*curr)->next = NULL;
1941 curr = &(*curr)->next;
1943 if (rego->init != NULL)
1949 swapout_gdbarch_swap (struct gdbarch *gdbarch)
1951 struct gdbarch_swap *curr;
1952 for (curr = gdbarch->swap;
1955 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1959 swapin_gdbarch_swap (struct gdbarch *gdbarch)
1961 struct gdbarch_swap *curr;
1962 for (curr = gdbarch->swap;
1965 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1969 /* Keep a registry of the architectures known by GDB. */
1971 struct gdbarch_registration
1973 enum bfd_architecture bfd_architecture;
1974 gdbarch_init_ftype *init;
1975 gdbarch_dump_tdep_ftype *dump_tdep;
1976 struct gdbarch_list *arches;
1977 struct gdbarch_registration *next;
1980 static struct gdbarch_registration *gdbarch_registry = NULL;
1983 append_name (const char ***buf, int *nr, const char *name)
1985 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1991 gdbarch_printable_names (void)
1995 /* Accumulate a list of names based on the registed list of
1997 enum bfd_architecture a;
1999 const char **arches = NULL;
2000 struct gdbarch_registration *rego;
2001 for (rego = gdbarch_registry;
2005 const struct bfd_arch_info *ap;
2006 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2008 internal_error (__FILE__, __LINE__,
2009 "gdbarch_architecture_names: multi-arch unknown");
2012 append_name (&arches, &nr_arches, ap->printable_name);
2017 append_name (&arches, &nr_arches, NULL);
2021 /* Just return all the architectures that BFD knows. Assume that
2022 the legacy architecture framework supports them. */
2023 return bfd_arch_list ();
2028 gdbarch_register (enum bfd_architecture bfd_architecture,
2029 gdbarch_init_ftype *init,
2030 gdbarch_dump_tdep_ftype *dump_tdep)
2032 struct gdbarch_registration **curr;
2033 const struct bfd_arch_info *bfd_arch_info;
2034 /* Check that BFD recognizes this architecture */
2035 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2036 if (bfd_arch_info == NULL)
2038 internal_error (__FILE__, __LINE__,
2039 "gdbarch: Attempt to register unknown architecture (%d)",
2042 /* Check that we haven't seen this architecture before */
2043 for (curr = &gdbarch_registry;
2045 curr = &(*curr)->next)
2047 if (bfd_architecture == (*curr)->bfd_architecture)
2048 internal_error (__FILE__, __LINE__,
2049 "gdbarch: Duplicate registraration of architecture (%s)",
2050 bfd_arch_info->printable_name);
2054 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2055 bfd_arch_info->printable_name,
2058 (*curr) = XMALLOC (struct gdbarch_registration);
2059 (*curr)->bfd_architecture = bfd_architecture;
2060 (*curr)->init = init;
2061 (*curr)->dump_tdep = dump_tdep;
2062 (*curr)->arches = NULL;
2063 (*curr)->next = NULL;
2064 /* When non- multi-arch, install whatever target dump routine we've
2065 been provided - hopefully that routine has been written correctly
2066 and works regardless of multi-arch. */
2067 if (!GDB_MULTI_ARCH && dump_tdep != NULL
2068 && startup_gdbarch.dump_tdep == NULL)
2069 startup_gdbarch.dump_tdep = dump_tdep;
2073 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2074 gdbarch_init_ftype *init)
2076 gdbarch_register (bfd_architecture, init, NULL);
2080 /* Look for an architecture using gdbarch_info. Base search on only
2081 BFD_ARCH_INFO and BYTE_ORDER. */
2083 struct gdbarch_list *
2084 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2085 const struct gdbarch_info *info)
2087 for (; arches != NULL; arches = arches->next)
2089 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2091 if (info->byte_order != arches->gdbarch->byte_order)
2099 /* Update the current architecture. Return ZERO if the update request
2103 gdbarch_update_p (struct gdbarch_info info)
2105 struct gdbarch *new_gdbarch;
2106 struct gdbarch *old_gdbarch;
2107 struct gdbarch_registration *rego;
2109 /* Fill in missing parts of the INFO struct using a number of
2110 sources: \`\`set ...''; INFOabfd supplied; existing target. */
2112 /* \`\`(gdb) set architecture ...'' */
2113 if (info.bfd_arch_info == NULL
2114 && !TARGET_ARCHITECTURE_AUTO)
2115 info.bfd_arch_info = TARGET_ARCHITECTURE;
2116 if (info.bfd_arch_info == NULL
2117 && info.abfd != NULL
2118 && bfd_get_arch (info.abfd) != bfd_arch_unknown
2119 && bfd_get_arch (info.abfd) != bfd_arch_obscure)
2120 info.bfd_arch_info = bfd_get_arch_info (info.abfd);
2121 if (info.bfd_arch_info == NULL)
2122 info.bfd_arch_info = TARGET_ARCHITECTURE;
2124 /* \`\`(gdb) set byte-order ...'' */
2125 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2126 && !TARGET_BYTE_ORDER_AUTO)
2127 info.byte_order = TARGET_BYTE_ORDER;
2128 /* From the INFO struct. */
2129 if (info.byte_order == BFD_ENDIAN_UNKNOWN
2130 && info.abfd != NULL)
2131 info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG
2132 : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE
2133 : BFD_ENDIAN_UNKNOWN);
2134 /* From the current target. */
2135 if (info.byte_order == BFD_ENDIAN_UNKNOWN)
2136 info.byte_order = TARGET_BYTE_ORDER;
2138 /* Must have found some sort of architecture. */
2139 gdb_assert (info.bfd_arch_info != NULL);
2143 fprintf_unfiltered (gdb_stdlog,
2144 "gdbarch_update: info.bfd_arch_info %s\n",
2145 (info.bfd_arch_info != NULL
2146 ? info.bfd_arch_info->printable_name
2148 fprintf_unfiltered (gdb_stdlog,
2149 "gdbarch_update: info.byte_order %d (%s)\n",
2151 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2152 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2154 fprintf_unfiltered (gdb_stdlog,
2155 "gdbarch_update: info.abfd 0x%lx\n",
2157 fprintf_unfiltered (gdb_stdlog,
2158 "gdbarch_update: info.tdep_info 0x%lx\n",
2159 (long) info.tdep_info);
2162 /* Find the target that knows about this architecture. */
2163 for (rego = gdbarch_registry;
2166 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2171 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n");
2175 /* Swap the data belonging to the old target out setting the
2176 installed data to zero. This stops the ->init() function trying
2177 to refer to the previous architecture's global data structures. */
2178 swapout_gdbarch_swap (current_gdbarch);
2179 clear_gdbarch_swap (current_gdbarch);
2181 /* Save the previously selected architecture, setting the global to
2182 NULL. This stops ->init() trying to use the previous
2183 architecture's configuration. The previous architecture may not
2184 even be of the same architecture family. The most recent
2185 architecture of the same family is found at the head of the
2186 rego->arches list. */
2187 old_gdbarch = current_gdbarch;
2188 current_gdbarch = NULL;
2190 /* Ask the target for a replacement architecture. */
2191 new_gdbarch = rego->init (info, rego->arches);
2193 /* Did the target like it? No. Reject the change and revert to the
2194 old architecture. */
2195 if (new_gdbarch == NULL)
2198 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n");
2199 swapin_gdbarch_swap (old_gdbarch);
2200 current_gdbarch = old_gdbarch;
2204 /* Did the architecture change? No. Oops, put the old architecture
2206 if (old_gdbarch == new_gdbarch)
2209 fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n",
2211 new_gdbarch->bfd_arch_info->printable_name);
2212 swapin_gdbarch_swap (old_gdbarch);
2213 current_gdbarch = old_gdbarch;
2217 /* Is this a pre-existing architecture? Yes. Move it to the front
2218 of the list of architectures (keeping the list sorted Most
2219 Recently Used) and then copy it in. */
2221 struct gdbarch_list **list;
2222 for (list = ®o->arches;
2224 list = &(*list)->next)
2226 if ((*list)->gdbarch == new_gdbarch)
2228 struct gdbarch_list *this;
2230 fprintf_unfiltered (gdb_stdlog,
2231 "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n",
2233 new_gdbarch->bfd_arch_info->printable_name);
2236 (*list) = this->next;
2237 /* Insert in the front. */
2238 this->next = rego->arches;
2239 rego->arches = this;
2240 /* Copy the new architecture in. */
2241 current_gdbarch = new_gdbarch;
2242 swapin_gdbarch_swap (new_gdbarch);
2243 architecture_changed_event ();
2249 /* Prepend this new architecture to the architecture list (keep the
2250 list sorted Most Recently Used). */
2252 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2253 this->next = rego->arches;
2254 this->gdbarch = new_gdbarch;
2255 rego->arches = this;
2258 /* Switch to this new architecture marking it initialized. */
2259 current_gdbarch = new_gdbarch;
2260 current_gdbarch->initialized_p = 1;
2263 fprintf_unfiltered (gdb_stdlog,
2264 "gdbarch_update: New architecture 0x%08lx (%s) selected\\n",
2266 new_gdbarch->bfd_arch_info->printable_name);
2269 /* Check that the newly installed architecture is valid. Plug in
2270 any post init values. */
2271 new_gdbarch->dump_tdep = rego->dump_tdep;
2272 verify_gdbarch (new_gdbarch);
2274 /* Initialize the per-architecture memory (swap) areas.
2275 CURRENT_GDBARCH must be update before these modules are
2277 init_gdbarch_swap (new_gdbarch);
2279 /* Initialize the per-architecture data. CURRENT_GDBARCH
2280 must be updated before these modules are called. */
2281 architecture_changed_event ();
2284 gdbarch_dump (current_gdbarch, gdb_stdlog);
2292 /* Pointer to the target-dependent disassembly function. */
2293 int (*tm_print_insn) (bfd_vma, disassemble_info *);
2294 disassemble_info tm_print_insn_info;
2297 extern void _initialize_gdbarch (void);
2300 _initialize_gdbarch (void)
2302 struct cmd_list_element *c;
2304 INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered);
2305 tm_print_insn_info.flavour = bfd_target_unknown_flavour;
2306 tm_print_insn_info.read_memory_func = dis_asm_read_memory;
2307 tm_print_insn_info.memory_error_func = dis_asm_memory_error;
2308 tm_print_insn_info.print_address_func = dis_asm_print_address;
2310 add_show_from_set (add_set_cmd ("arch",
2313 (char *)&gdbarch_debug,
2314 "Set architecture debugging.\\n\\
2315 When non-zero, architecture debugging is enabled.", &setdebuglist),
2317 c = add_set_cmd ("archdebug",
2320 (char *)&gdbarch_debug,
2321 "Set architecture debugging.\\n\\
2322 When non-zero, architecture debugging is enabled.", &setlist);
2324 deprecate_cmd (c, "set debug arch");
2325 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2331 #../move-if-change new-gdbarch.c gdbarch.c
2332 compare_new gdbarch.c