3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
9 # This file is part of GDB.
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2 of the License, or
14 # (at your option) any later version.
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program; if not, write to the Free Software
23 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 # Make certain that the script is running in an internationalized
28 LC_ALL=c ; export LC_ALL
36 echo "${file} missing? cp new-${file} ${file}" 1>&2
37 elif diff -u ${file} new-${file}
39 echo "${file} unchanged" 1>&2
41 echo "${file} has changed? cp new-${file} ${file}" 1>&2
46 # Format of the input table
47 read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description"
55 if test "${line}" = ""
58 elif test "${line}" = "#" -a "${comment}" = ""
61 elif expr "${line}" : "#" > /dev/null
67 # The semantics of IFS varies between different SH's. Some
68 # treat ``::' as three fields while some treat it as just too.
69 # Work around this by eliminating ``::'' ....
70 line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
72 OFS="${IFS}" ; IFS="[:]"
73 eval read ${read} <<EOF
78 # .... and then going back through each field and strip out those
79 # that ended up with just that space character.
82 if eval test \"\${${r}}\" = \"\ \"
89 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;;
90 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
91 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;;
92 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;;
96 m ) staticdefault="${predefault}" ;;
97 M ) staticdefault="0" ;;
98 * ) test "${staticdefault}" || staticdefault=0 ;;
101 # come up with a format, use a few guesses for variables
102 case ":${class}:${fmt}:${print}:" in
104 if [ "${returntype}" = int ]
108 elif [ "${returntype}" = long ]
115 test "${fmt}" || fmt="%ld"
116 test "${print}" || print="(long) ${macro}"
120 case "${invalid_p}" in
122 if test -n "${predefault}"
124 #invalid_p="gdbarch->${function} == ${predefault}"
125 predicate="gdbarch->${function} != ${predefault}"
126 elif class_is_variable_p
128 predicate="gdbarch->${function} != 0"
129 elif class_is_function_p
131 predicate="gdbarch->${function} != NULL"
135 echo "Predicate function ${function} with invalid_p." 1>&2
142 # PREDEFAULT is a valid fallback definition of MEMBER when
143 # multi-arch is not enabled. This ensures that the
144 # default value, when multi-arch is the same as the
145 # default value when not multi-arch. POSTDEFAULT is
146 # always a valid definition of MEMBER as this again
147 # ensures consistency.
149 if [ -n "${postdefault}" ]
151 fallbackdefault="${postdefault}"
152 elif [ -n "${predefault}" ]
154 fallbackdefault="${predefault}"
159 #NOT YET: See gdbarch.log for basic verification of
174 fallback_default_p ()
176 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
177 || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
180 class_is_variable_p ()
188 class_is_function_p ()
191 *f* | *F* | *m* | *M* ) true ;;
196 class_is_multiarch_p ()
204 class_is_predicate_p ()
207 *F* | *V* | *M* ) true ;;
221 # dump out/verify the doco
231 # F -> function + predicate
232 # hiding a function + predicate to test function validity
235 # V -> variable + predicate
236 # hiding a variable + predicate to test variables validity
238 # hiding something from the ``struct info'' object
239 # m -> multi-arch function
240 # hiding a multi-arch function (parameterised with the architecture)
241 # M -> multi-arch function + predicate
242 # hiding a multi-arch function + predicate to test function validity
246 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >=
247 # LEVEL is a predicate on checking that a given method is
248 # initialized (using INVALID_P).
252 # The name of the MACRO that this method is to be accessed by.
256 # For functions, the return type; for variables, the data type
260 # For functions, the member function name; for variables, the
261 # variable name. Member function names are always prefixed with
262 # ``gdbarch_'' for name-space purity.
266 # The formal argument list. It is assumed that the formal
267 # argument list includes the actual name of each list element.
268 # A function with no arguments shall have ``void'' as the
269 # formal argument list.
273 # The list of actual arguments. The arguments specified shall
274 # match the FORMAL list given above. Functions with out
275 # arguments leave this blank.
279 # Any GCC attributes that should be attached to the function
280 # declaration. At present this field is unused.
284 # To help with the GDB startup a static gdbarch object is
285 # created. STATICDEFAULT is the value to insert into that
286 # static gdbarch object. Since this a static object only
287 # simple expressions can be used.
289 # If STATICDEFAULT is empty, zero is used.
293 # An initial value to assign to MEMBER of the freshly
294 # malloc()ed gdbarch object. After initialization, the
295 # freshly malloc()ed object is passed to the target
296 # architecture code for further updates.
298 # If PREDEFAULT is empty, zero is used.
300 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
301 # INVALID_P are specified, PREDEFAULT will be used as the
302 # default for the non- multi-arch target.
304 # A zero PREDEFAULT function will force the fallback to call
307 # Variable declarations can refer to ``gdbarch'' which will
308 # contain the current architecture. Care should be taken.
312 # A value to assign to MEMBER of the new gdbarch object should
313 # the target architecture code fail to change the PREDEFAULT
316 # If POSTDEFAULT is empty, no post update is performed.
318 # If both INVALID_P and POSTDEFAULT are non-empty then
319 # INVALID_P will be used to determine if MEMBER should be
320 # changed to POSTDEFAULT.
322 # If a non-empty POSTDEFAULT and a zero INVALID_P are
323 # specified, POSTDEFAULT will be used as the default for the
324 # non- multi-arch target (regardless of the value of
327 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
329 # Variable declarations can refer to ``current_gdbarch'' which
330 # will contain the current architecture. Care should be
335 # A predicate equation that validates MEMBER. Non-zero is
336 # returned if the code creating the new architecture failed to
337 # initialize MEMBER or the initialized the member is invalid.
338 # If POSTDEFAULT is non-empty then MEMBER will be updated to
339 # that value. If POSTDEFAULT is empty then internal_error()
342 # If INVALID_P is empty, a check that MEMBER is no longer
343 # equal to PREDEFAULT is used.
345 # The expression ``0'' disables the INVALID_P check making
346 # PREDEFAULT a legitimate value.
348 # See also PREDEFAULT and POSTDEFAULT.
352 # printf style format string that can be used to print out the
353 # MEMBER. Sometimes "%s" is useful. For functions, this is
354 # ignored and the function address is printed.
356 # If FMT is empty, ``%ld'' is used.
360 # An optional equation that casts MEMBER to a value suitable
361 # for formatting by FMT.
363 # If PRINT is empty, ``(long)'' is used.
367 # An optional indicator for any predicte to wrap around the
370 # () -> Call a custom function to do the dump.
371 # exp -> Wrap print up in ``if (${print_p}) ...
372 # ``'' -> No predicate
374 # If PRINT_P is empty, ``1'' is always used.
381 echo "Bad field ${field}"
389 # See below (DOCO) for description of each field
391 i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL
393 i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG
395 i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN
396 # Number of bits in a char or unsigned char for the target machine.
397 # Just like CHAR_BIT in <limits.h> but describes the target machine.
398 # v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
400 # Number of bits in a short or unsigned short for the target machine.
401 v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0
402 # Number of bits in an int or unsigned int for the target machine.
403 v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0
404 # Number of bits in a long or unsigned long for the target machine.
405 v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0
406 # Number of bits in a long long or unsigned long long for the target
408 v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
409 # Number of bits in a float for the target machine.
410 v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0
411 # Number of bits in a double for the target machine.
412 v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0
413 # Number of bits in a long double for the target machine.
414 v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
415 # For most targets, a pointer on the target and its representation as an
416 # address in GDB have the same size and "look the same". For such a
417 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
418 # / addr_bit will be set from it.
420 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
421 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
423 # ptr_bit is the size of a pointer on the target
424 v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0
425 # addr_bit is the size of a target address as represented in gdb
426 v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT:
427 # Number of bits in a BFD_VMA for the target object file format.
428 v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
430 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
431 v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1::::
433 F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
434 f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0
435 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
436 F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void
437 # Function for getting target's idea of a frame pointer. FIXME: GDB's
438 # whole scheme for dealing with "frames" and "frame pointers" needs a
440 f:2:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0
442 M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf
443 M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf
445 v:2:NUM_REGS:int:num_regs::::0:-1
446 # This macro gives the number of pseudo-registers that live in the
447 # register namespace but do not get fetched or stored on the target.
448 # These pseudo-registers may be aliases for other registers,
449 # combinations of other registers, or they may be computed by GDB.
450 v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0:::
452 # GDB's standard (or well known) register numbers. These can map onto
453 # a real register or a pseudo (computed) register or not be defined at
455 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
456 v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0
457 v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0
458 v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0
459 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0
460 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
461 f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0
462 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
463 f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0
464 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
465 f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0
466 # Convert from an sdb register number to an internal gdb register number.
467 f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0
468 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0
469 f::REGISTER_NAME:const char *:register_name:int regnr:regnr
471 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
472 M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr
473 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
474 F:2:DEPRECATED_REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr
475 # DEPRECATED_REGISTER_BYTES can be deleted. The value is computed
476 # from REGISTER_TYPE.
477 v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes
478 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
479 # register offsets computed using just REGISTER_TYPE, this can be
480 # deleted. See: maint print registers. NOTE: cagney/2002-05-02: This
481 # function with predicate has a valid (callable) initial value. As a
482 # consequence, even when the predicate is false, the corresponding
483 # function works. This simplifies the migration process - old code,
484 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
485 F::DEPRECATED_REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte
486 # If all registers have identical raw and virtual sizes and those
487 # sizes agree with the value computed from REGISTER_TYPE,
488 # DEPRECATED_REGISTER_RAW_SIZE can be deleted. See: maint print
490 F:2:DEPRECATED_REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
491 # If all registers have identical raw and virtual sizes and those
492 # sizes agree with the value computed from REGISTER_TYPE,
493 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted. See: maint print
495 F:2:DEPRECATED_REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
496 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted. It has been
497 # replaced by the constant MAX_REGISTER_SIZE.
498 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
499 # DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted. It has been
500 # replaced by the constant MAX_REGISTER_SIZE.
501 V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size
503 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
504 M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info
505 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
506 # SAVE_DUMMY_FRAME_TOS.
507 F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp
508 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
509 # DEPRECATED_FP_REGNUM.
510 v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0
511 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
512 # DEPRECATED_TARGET_READ_FP.
513 F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void
515 # See gdbint.texinfo. See infcall.c. New, all singing all dancing,
516 # replacement for DEPRECATED_PUSH_ARGUMENTS.
517 M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:CORE_ADDR func_addr, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:func_addr, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
518 # PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS.
519 F:2:DEPRECATED_PUSH_ARGUMENTS:CORE_ADDR:deprecated_push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr
520 # Implement PUSH_RETURN_ADDRESS, and then merge in
521 # DEPRECATED_PUSH_RETURN_ADDRESS.
522 F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp
523 # Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP.
524 F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val
525 # DEPRECATED_REGISTER_SIZE can be deleted.
526 v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size
527 v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0
528 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
529 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
530 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
531 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
532 # DEPRECATED_FIX_CALL_DUMMY can be deleted. For the SPARC, implement
533 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
534 F::DEPRECATED_FIX_CALL_DUMMY:void:deprecated_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
535 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
536 M::PUSH_DUMMY_CODE:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr
537 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
538 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
540 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
541 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
542 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
543 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
544 # MAP a GDB RAW register number onto a simulator register number. See
545 # also include/...-sim.h.
546 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
547 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
548 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
549 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
550 # setjmp/longjmp support.
551 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
552 # NOTE: cagney/2002-11-24: This function with predicate has a valid
553 # (callable) initial value. As a consequence, even when the predicate
554 # is false, the corresponding function works. This simplifies the
555 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
556 # doesn't need to be modified.
557 F::DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::deprecated_pc_in_call_dummy:deprecated_pc_in_call_dummy
558 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
560 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
561 F:2:DEPRECATED_GET_SAVED_REGISTER:void:deprecated_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
563 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
564 # For raw <-> cooked register conversions, replaced by pseudo registers.
565 F::DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr
566 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
567 # For raw <-> cooked register conversions, replaced by pseudo registers.
568 f:2:DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL:void:deprecated_register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0
569 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
570 # For raw <-> cooked register conversions, replaced by pseudo registers.
571 f:2:DEPRECATED_REGISTER_CONVERT_TO_RAW:void:deprecated_register_convert_to_raw:struct type *type, int regnum, const char *from, char *to:type, regnum, from, to:::0::0
573 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
574 f:1:REGISTER_TO_VALUE:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, void *buf:frame, regnum, type, buf::0:legacy_register_to_value::0
575 f:1:VALUE_TO_REGISTER:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const void *buf:frame, regnum, type, buf::0:legacy_value_to_register::0
577 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
578 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
579 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
581 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
582 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
583 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
585 # It has been suggested that this, well actually its predecessor,
586 # should take the type/value of the function to be called and not the
587 # return type. This is left as an exercise for the reader.
589 M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf
591 # The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
592 # STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
595 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
596 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0
597 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0
598 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
599 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
600 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
602 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
603 # ABI suitable for the implementation of a robust extract
604 # struct-convention return-value address method (the sparc saves the
605 # address in the callers frame). All the other cases so far examined,
606 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
607 # erreneous - the code was incorrectly assuming that the return-value
608 # address, stored in a register, was preserved across the entire
611 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
612 # the ABIs that are still to be analyzed - perhaps this should simply
613 # be deleted. The commented out extract_returned_value_address method
614 # is provided as a starting point for the 32-bit SPARC. It, or
615 # something like it, along with changes to both infcmd.c and stack.c
616 # will be needed for that case to work. NB: It is passed the callers
617 # frame since it is only after the callee has returned that this
620 #M:::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
621 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
623 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
624 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
626 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
627 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
628 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
629 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
630 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
631 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
632 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0
633 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0
635 m::REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:regcache, gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0
637 v::FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:::0
638 # DEPRECATED_FRAMELESS_FUNCTION_INVOCATION is not needed. The new
639 # frame code works regardless of the type of frame - frameless,
640 # stackless, or normal.
641 F::DEPRECATED_FRAMELESS_FUNCTION_INVOCATION:int:deprecated_frameless_function_invocation:struct frame_info *fi:fi
642 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
643 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
644 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC. Please
645 # note, per UNWIND_PC's doco, that while the two have similar
646 # interfaces they have very different underlying implementations.
647 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
648 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
649 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
650 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
651 # frame-base. Enable frame-base before frame-unwind.
652 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
653 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
654 # frame-base. Enable frame-base before frame-unwind.
655 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
656 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
657 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
659 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
660 # to frame_align and the requirement that methods such as
661 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
663 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
664 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
665 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
666 # stabs_argument_has_addr.
667 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
668 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
669 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
671 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
672 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
673 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
674 m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0
675 # On some machines there are bits in addresses which are not really
676 # part of the address, but are used by the kernel, the hardware, etc.
677 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
678 # we get a "real" address such as one would find in a symbol table.
679 # This is used only for addresses of instructions, and even then I'm
680 # not sure it's used in all contexts. It exists to deal with there
681 # being a few stray bits in the PC which would mislead us, not as some
682 # sort of generic thing to handle alignment or segmentation (it's
683 # possible it should be in TARGET_READ_PC instead).
684 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
685 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
687 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
688 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
689 # the target needs software single step. An ISA method to implement it.
691 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
692 # using the breakpoint system instead of blatting memory directly (as with rs6000).
694 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
695 # single step. If not, then implement single step using breakpoints.
696 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
697 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
698 # disassembler. Perhaphs objdump can handle it?
699 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
700 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
703 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
704 # evaluates non-zero, this is the address where the debugger will place
705 # a step-resume breakpoint to get us past the dynamic linker.
706 m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
707 # For SVR4 shared libraries, each call goes through a small piece of
708 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
709 # to nonzero if we are currently stopped in one of these.
710 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
712 # Some systems also have trampoline code for returning from shared libs.
713 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
715 # A target might have problems with watchpoints as soon as the stack
716 # frame of the current function has been destroyed. This mostly happens
717 # as the first action in a funtion's epilogue. in_function_epilogue_p()
718 # is defined to return a non-zero value if either the given addr is one
719 # instruction after the stack destroying instruction up to the trailing
720 # return instruction or if we can figure out that the stack frame has
721 # already been invalidated regardless of the value of addr. Targets
722 # which don't suffer from that problem could just let this functionality
724 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
725 # Given a vector of command-line arguments, return a newly allocated
726 # string which, when passed to the create_inferior function, will be
727 # parsed (on Unix systems, by the shell) to yield the same vector.
728 # This function should call error() if the argument vector is not
729 # representable for this target or if this target does not support
730 # command-line arguments.
731 # ARGC is the number of elements in the vector.
732 # ARGV is an array of strings, one per argument.
733 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
734 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
735 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
736 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
737 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
738 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
739 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
740 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
741 M:2:ADDRESS_CLASS_NAME_TO_TYPE_FLAGS:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
742 # Is a register in a group
743 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
744 # Fetch the pointer to the ith function argument.
745 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
747 # Return the appropriate register set for a core file section with
748 # name SECT_NAME and size SECT_SIZE.
749 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
756 exec > new-gdbarch.log
757 function_list | while do_read
760 ${class} ${macro}(${actual})
761 ${returntype} ${function} ($formal)${attrib}
765 eval echo \"\ \ \ \ ${r}=\${${r}}\"
767 if class_is_predicate_p && fallback_default_p
769 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
773 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
775 echo "Error: postdefault is useless when invalid_p=0" 1>&2
779 if class_is_multiarch_p
781 if class_is_predicate_p ; then :
782 elif test "x${predefault}" = "x"
784 echo "Error: pure multi-arch function must have a predefault" 1>&2
793 compare_new gdbarch.log
799 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
801 /* Dynamic architecture support for GDB, the GNU debugger.
803 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
804 Software Foundation, Inc.
806 This file is part of GDB.
808 This program is free software; you can redistribute it and/or modify
809 it under the terms of the GNU General Public License as published by
810 the Free Software Foundation; either version 2 of the License, or
811 (at your option) any later version.
813 This program is distributed in the hope that it will be useful,
814 but WITHOUT ANY WARRANTY; without even the implied warranty of
815 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
816 GNU General Public License for more details.
818 You should have received a copy of the GNU General Public License
819 along with this program; if not, write to the Free Software
820 Foundation, Inc., 59 Temple Place - Suite 330,
821 Boston, MA 02111-1307, USA. */
823 /* This file was created with the aid of \`\`gdbarch.sh''.
825 The Bourne shell script \`\`gdbarch.sh'' creates the files
826 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
827 against the existing \`\`gdbarch.[hc]''. Any differences found
830 If editing this file, please also run gdbarch.sh and merge any
831 changes into that script. Conversely, when making sweeping changes
832 to this file, modifying gdbarch.sh and using its output may prove
853 struct minimal_symbol;
857 struct disassemble_info;
861 extern struct gdbarch *current_gdbarch;
863 /* If any of the following are defined, the target wasn't correctly
866 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
867 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
874 printf "/* The following are pre-initialized by GDBARCH. */\n"
875 function_list | while do_read
880 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
881 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
882 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
883 printf "#error \"Non multi-arch definition of ${macro}\"\n"
885 printf "#if !defined (${macro})\n"
886 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
894 printf "/* The following are initialized by the target dependent code. */\n"
895 function_list | while do_read
897 if [ -n "${comment}" ]
899 echo "${comment}" | sed \
904 if class_is_multiarch_p
906 if class_is_predicate_p
909 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
912 if class_is_predicate_p
915 printf "#if defined (${macro})\n"
916 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
917 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
918 printf "#if !defined (${macro}_P)\n"
919 printf "#define ${macro}_P() (1)\n"
923 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
924 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
925 printf "#error \"Non multi-arch definition of ${macro}\"\n"
927 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
928 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
932 if class_is_variable_p
935 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
936 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
937 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
938 printf "#error \"Non multi-arch definition of ${macro}\"\n"
940 printf "#if !defined (${macro})\n"
941 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
944 if class_is_function_p
947 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
949 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
950 elif class_is_multiarch_p
952 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
954 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
956 if [ "x${formal}" = "xvoid" ]
958 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
960 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
962 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
963 if class_is_multiarch_p ; then :
965 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
966 printf "#error \"Non multi-arch definition of ${macro}\"\n"
968 if [ "x${actual}" = "x" ]
970 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
971 elif [ "x${actual}" = "x-" ]
973 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
975 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
977 printf "#if !defined (${macro})\n"
978 if [ "x${actual}" = "x" ]
980 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
981 elif [ "x${actual}" = "x-" ]
983 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
985 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
995 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
998 /* Mechanism for co-ordinating the selection of a specific
1001 GDB targets (*-tdep.c) can register an interest in a specific
1002 architecture. Other GDB components can register a need to maintain
1003 per-architecture data.
1005 The mechanisms below ensures that there is only a loose connection
1006 between the set-architecture command and the various GDB
1007 components. Each component can independently register their need
1008 to maintain architecture specific data with gdbarch.
1012 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1015 The more traditional mega-struct containing architecture specific
1016 data for all the various GDB components was also considered. Since
1017 GDB is built from a variable number of (fairly independent)
1018 components it was determined that the global aproach was not
1022 /* Register a new architectural family with GDB.
1024 Register support for the specified ARCHITECTURE with GDB. When
1025 gdbarch determines that the specified architecture has been
1026 selected, the corresponding INIT function is called.
1030 The INIT function takes two parameters: INFO which contains the
1031 information available to gdbarch about the (possibly new)
1032 architecture; ARCHES which is a list of the previously created
1033 \`\`struct gdbarch'' for this architecture.
1035 The INFO parameter is, as far as possible, be pre-initialized with
1036 information obtained from INFO.ABFD or the previously selected
1039 The ARCHES parameter is a linked list (sorted most recently used)
1040 of all the previously created architures for this architecture
1041 family. The (possibly NULL) ARCHES->gdbarch can used to access
1042 values from the previously selected architecture for this
1043 architecture family. The global \`\`current_gdbarch'' shall not be
1046 The INIT function shall return any of: NULL - indicating that it
1047 doesn't recognize the selected architecture; an existing \`\`struct
1048 gdbarch'' from the ARCHES list - indicating that the new
1049 architecture is just a synonym for an earlier architecture (see
1050 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1051 - that describes the selected architecture (see gdbarch_alloc()).
1053 The DUMP_TDEP function shall print out all target specific values.
1054 Care should be taken to ensure that the function works in both the
1055 multi-arch and non- multi-arch cases. */
1059 struct gdbarch *gdbarch;
1060 struct gdbarch_list *next;
1065 /* Use default: NULL (ZERO). */
1066 const struct bfd_arch_info *bfd_arch_info;
1068 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1071 /* Use default: NULL (ZERO). */
1074 /* Use default: NULL (ZERO). */
1075 struct gdbarch_tdep_info *tdep_info;
1077 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1078 enum gdb_osabi osabi;
1081 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1082 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1084 /* DEPRECATED - use gdbarch_register() */
1085 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1087 extern void gdbarch_register (enum bfd_architecture architecture,
1088 gdbarch_init_ftype *,
1089 gdbarch_dump_tdep_ftype *);
1092 /* Return a freshly allocated, NULL terminated, array of the valid
1093 architecture names. Since architectures are registered during the
1094 _initialize phase this function only returns useful information
1095 once initialization has been completed. */
1097 extern const char **gdbarch_printable_names (void);
1100 /* Helper function. Search the list of ARCHES for a GDBARCH that
1101 matches the information provided by INFO. */
1103 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1106 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1107 basic initialization using values obtained from the INFO andTDEP
1108 parameters. set_gdbarch_*() functions are called to complete the
1109 initialization of the object. */
1111 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1114 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1115 It is assumed that the caller freeds the \`\`struct
1118 extern void gdbarch_free (struct gdbarch *);
1121 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1122 obstack. The memory is freed when the corresponding architecture
1125 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1126 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1127 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1130 /* Helper function. Force an update of the current architecture.
1132 The actual architecture selected is determined by INFO, \`\`(gdb) set
1133 architecture'' et.al., the existing architecture and BFD's default
1134 architecture. INFO should be initialized to zero and then selected
1135 fields should be updated.
1137 Returns non-zero if the update succeeds */
1139 extern int gdbarch_update_p (struct gdbarch_info info);
1142 /* Helper function. Find an architecture matching info.
1144 INFO should be initialized using gdbarch_info_init, relevant fields
1145 set, and then finished using gdbarch_info_fill.
1147 Returns the corresponding architecture, or NULL if no matching
1148 architecture was found. "current_gdbarch" is not updated. */
1150 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1153 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1155 FIXME: kettenis/20031124: Of the functions that follow, only
1156 gdbarch_from_bfd is supposed to survive. The others will
1157 dissappear since in the future GDB will (hopefully) be truly
1158 multi-arch. However, for now we're still stuck with the concept of
1159 a single active architecture. */
1161 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1164 /* Register per-architecture data-pointer.
1166 Reserve space for a per-architecture data-pointer. An identifier
1167 for the reserved data-pointer is returned. That identifer should
1168 be saved in a local static variable.
1170 Memory for the per-architecture data shall be allocated using
1171 gdbarch_obstack_zalloc. That memory will be deleted when the
1172 corresponding architecture object is deleted.
1174 When a previously created architecture is re-selected, the
1175 per-architecture data-pointer for that previous architecture is
1176 restored. INIT() is not re-called.
1178 Multiple registrarants for any architecture are allowed (and
1179 strongly encouraged). */
1181 struct gdbarch_data;
1183 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1184 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1185 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1186 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1187 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1188 struct gdbarch_data *data,
1191 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1195 /* Register per-architecture memory region.
1197 Provide a memory-region swap mechanism. Per-architecture memory
1198 region are created. These memory regions are swapped whenever the
1199 architecture is changed. For a new architecture, the memory region
1200 is initialized with zero (0) and the INIT function is called.
1202 Memory regions are swapped / initialized in the order that they are
1203 registered. NULL DATA and/or INIT values can be specified.
1205 New code should use gdbarch_data_register_*(). */
1207 typedef void (gdbarch_swap_ftype) (void);
1208 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1209 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1213 /* Set the dynamic target-system-dependent parameters (architecture,
1214 byte-order, ...) using information found in the BFD */
1216 extern void set_gdbarch_from_file (bfd *);
1219 /* Initialize the current architecture to the "first" one we find on
1222 extern void initialize_current_architecture (void);
1224 /* gdbarch trace variable */
1225 extern int gdbarch_debug;
1227 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1232 #../move-if-change new-gdbarch.h gdbarch.h
1233 compare_new gdbarch.h
1240 exec > new-gdbarch.c
1245 #include "arch-utils.h"
1248 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1251 #include "floatformat.h"
1253 #include "gdb_assert.h"
1254 #include "gdb_string.h"
1255 #include "gdb-events.h"
1256 #include "reggroups.h"
1258 #include "gdb_obstack.h"
1260 /* Static function declarations */
1262 static void alloc_gdbarch_data (struct gdbarch *);
1264 /* Non-zero if we want to trace architecture code. */
1266 #ifndef GDBARCH_DEBUG
1267 #define GDBARCH_DEBUG 0
1269 int gdbarch_debug = GDBARCH_DEBUG;
1273 # gdbarch open the gdbarch object
1275 printf "/* Maintain the struct gdbarch object */\n"
1277 printf "struct gdbarch\n"
1279 printf " /* Has this architecture been fully initialized? */\n"
1280 printf " int initialized_p;\n"
1282 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1283 printf " struct obstack *obstack;\n"
1285 printf " /* basic architectural information */\n"
1286 function_list | while do_read
1290 printf " ${returntype} ${function};\n"
1294 printf " /* target specific vector. */\n"
1295 printf " struct gdbarch_tdep *tdep;\n"
1296 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1298 printf " /* per-architecture data-pointers */\n"
1299 printf " unsigned nr_data;\n"
1300 printf " void **data;\n"
1302 printf " /* per-architecture swap-regions */\n"
1303 printf " struct gdbarch_swap *swap;\n"
1306 /* Multi-arch values.
1308 When extending this structure you must:
1310 Add the field below.
1312 Declare set/get functions and define the corresponding
1315 gdbarch_alloc(): If zero/NULL is not a suitable default,
1316 initialize the new field.
1318 verify_gdbarch(): Confirm that the target updated the field
1321 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1324 \`\`startup_gdbarch()'': Append an initial value to the static
1325 variable (base values on the host's c-type system).
1327 get_gdbarch(): Implement the set/get functions (probably using
1328 the macro's as shortcuts).
1333 function_list | while do_read
1335 if class_is_variable_p
1337 printf " ${returntype} ${function};\n"
1338 elif class_is_function_p
1340 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1345 # A pre-initialized vector
1349 /* The default architecture uses host values (for want of a better
1353 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1355 printf "struct gdbarch startup_gdbarch =\n"
1357 printf " 1, /* Always initialized. */\n"
1358 printf " NULL, /* The obstack. */\n"
1359 printf " /* basic architecture information */\n"
1360 function_list | while do_read
1364 printf " ${staticdefault}, /* ${function} */\n"
1368 /* target specific vector and its dump routine */
1370 /*per-architecture data-pointers and swap regions */
1372 /* Multi-arch values */
1374 function_list | while do_read
1376 if class_is_function_p || class_is_variable_p
1378 printf " ${staticdefault}, /* ${function} */\n"
1382 /* startup_gdbarch() */
1385 struct gdbarch *current_gdbarch = &startup_gdbarch;
1388 # Create a new gdbarch struct
1391 /* Create a new \`\`struct gdbarch'' based on information provided by
1392 \`\`struct gdbarch_info''. */
1397 gdbarch_alloc (const struct gdbarch_info *info,
1398 struct gdbarch_tdep *tdep)
1400 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1401 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1402 the current local architecture and not the previous global
1403 architecture. This ensures that the new architectures initial
1404 values are not influenced by the previous architecture. Once
1405 everything is parameterised with gdbarch, this will go away. */
1406 struct gdbarch *current_gdbarch;
1408 /* Create an obstack for allocating all the per-architecture memory,
1409 then use that to allocate the architecture vector. */
1410 struct obstack *obstack = XMALLOC (struct obstack);
1411 obstack_init (obstack);
1412 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1413 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1414 current_gdbarch->obstack = obstack;
1416 alloc_gdbarch_data (current_gdbarch);
1418 current_gdbarch->tdep = tdep;
1421 function_list | while do_read
1425 printf " current_gdbarch->${function} = info->${function};\n"
1429 printf " /* Force the explicit initialization of these. */\n"
1430 function_list | while do_read
1432 if class_is_function_p || class_is_variable_p
1434 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1436 printf " current_gdbarch->${function} = ${predefault};\n"
1441 /* gdbarch_alloc() */
1443 return current_gdbarch;
1447 # Free a gdbarch struct.
1451 /* Allocate extra space using the per-architecture obstack. */
1454 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1456 void *data = obstack_alloc (arch->obstack, size);
1457 memset (data, 0, size);
1462 /* Free a gdbarch struct. This should never happen in normal
1463 operation --- once you've created a gdbarch, you keep it around.
1464 However, if an architecture's init function encounters an error
1465 building the structure, it may need to clean up a partially
1466 constructed gdbarch. */
1469 gdbarch_free (struct gdbarch *arch)
1471 struct obstack *obstack;
1472 gdb_assert (arch != NULL);
1473 gdb_assert (!arch->initialized_p);
1474 obstack = arch->obstack;
1475 obstack_free (obstack, 0); /* Includes the ARCH. */
1480 # verify a new architecture
1484 /* Ensure that all values in a GDBARCH are reasonable. */
1486 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1487 just happens to match the global variable \`\`current_gdbarch''. That
1488 way macros refering to that variable get the local and not the global
1489 version - ulgh. Once everything is parameterised with gdbarch, this
1493 verify_gdbarch (struct gdbarch *current_gdbarch)
1495 struct ui_file *log;
1496 struct cleanup *cleanups;
1499 log = mem_fileopen ();
1500 cleanups = make_cleanup_ui_file_delete (log);
1502 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1503 fprintf_unfiltered (log, "\n\tbyte-order");
1504 if (current_gdbarch->bfd_arch_info == NULL)
1505 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1506 /* Check those that need to be defined for the given multi-arch level. */
1508 function_list | while do_read
1510 if class_is_function_p || class_is_variable_p
1512 if [ "x${invalid_p}" = "x0" ]
1514 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1515 elif class_is_predicate_p
1517 printf " /* Skip verify of ${function}, has predicate */\n"
1518 # FIXME: See do_read for potential simplification
1519 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1521 printf " if (${invalid_p})\n"
1522 printf " current_gdbarch->${function} = ${postdefault};\n"
1523 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1525 printf " if (current_gdbarch->${function} == ${predefault})\n"
1526 printf " current_gdbarch->${function} = ${postdefault};\n"
1527 elif [ -n "${postdefault}" ]
1529 printf " if (current_gdbarch->${function} == 0)\n"
1530 printf " current_gdbarch->${function} = ${postdefault};\n"
1531 elif [ -n "${invalid_p}" ]
1533 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1534 printf " && (${invalid_p}))\n"
1535 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1536 elif [ -n "${predefault}" ]
1538 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1539 printf " && (current_gdbarch->${function} == ${predefault}))\n"
1540 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1545 buf = ui_file_xstrdup (log, &dummy);
1546 make_cleanup (xfree, buf);
1547 if (strlen (buf) > 0)
1548 internal_error (__FILE__, __LINE__,
1549 "verify_gdbarch: the following are invalid ...%s",
1551 do_cleanups (cleanups);
1555 # dump the structure
1559 /* Print out the details of the current architecture. */
1561 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1562 just happens to match the global variable \`\`current_gdbarch''. That
1563 way macros refering to that variable get the local and not the global
1564 version - ulgh. Once everything is parameterised with gdbarch, this
1568 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1570 fprintf_unfiltered (file,
1571 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1574 function_list | sort -t: -k 3 | while do_read
1576 # First the predicate
1577 if class_is_predicate_p
1579 if class_is_multiarch_p
1581 printf " fprintf_unfiltered (file,\n"
1582 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1583 printf " gdbarch_${function}_p (current_gdbarch));\n"
1585 printf "#ifdef ${macro}_P\n"
1586 printf " fprintf_unfiltered (file,\n"
1587 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1588 printf " \"${macro}_P()\",\n"
1589 printf " XSTRING (${macro}_P ()));\n"
1590 printf " fprintf_unfiltered (file,\n"
1591 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1592 printf " ${macro}_P ());\n"
1596 # multiarch functions don't have macros.
1597 if class_is_multiarch_p
1599 printf " fprintf_unfiltered (file,\n"
1600 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1601 printf " (long) current_gdbarch->${function});\n"
1604 # Print the macro definition.
1605 printf "#ifdef ${macro}\n"
1606 if class_is_function_p
1608 printf " fprintf_unfiltered (file,\n"
1609 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1610 printf " \"${macro}(${actual})\",\n"
1611 printf " XSTRING (${macro} (${actual})));\n"
1613 printf " fprintf_unfiltered (file,\n"
1614 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1615 printf " XSTRING (${macro}));\n"
1617 if [ "x${print_p}" = "x()" ]
1619 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1620 elif [ "x${print_p}" = "x0" ]
1622 printf " /* skip print of ${macro}, print_p == 0. */\n"
1623 elif [ -n "${print_p}" ]
1625 printf " if (${print_p})\n"
1626 printf " fprintf_unfiltered (file,\n"
1627 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1628 printf " ${print});\n"
1629 elif class_is_function_p
1631 printf " fprintf_unfiltered (file,\n"
1632 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1633 printf " (long) current_gdbarch->${function}\n"
1634 printf " /*${macro} ()*/);\n"
1636 printf " fprintf_unfiltered (file,\n"
1637 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1638 printf " ${print});\n"
1643 if (current_gdbarch->dump_tdep != NULL)
1644 current_gdbarch->dump_tdep (current_gdbarch, file);
1652 struct gdbarch_tdep *
1653 gdbarch_tdep (struct gdbarch *gdbarch)
1655 if (gdbarch_debug >= 2)
1656 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1657 return gdbarch->tdep;
1661 function_list | while do_read
1663 if class_is_predicate_p
1667 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1669 printf " gdb_assert (gdbarch != NULL);\n"
1670 printf " return ${predicate};\n"
1673 if class_is_function_p
1676 printf "${returntype}\n"
1677 if [ "x${formal}" = "xvoid" ]
1679 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1681 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1684 printf " gdb_assert (gdbarch != NULL);\n"
1685 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1686 if class_is_predicate_p && test -n "${predefault}"
1688 # Allow a call to a function with a predicate.
1689 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1691 printf " if (gdbarch_debug >= 2)\n"
1692 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1693 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1695 if class_is_multiarch_p
1702 if class_is_multiarch_p
1704 params="gdbarch, ${actual}"
1709 if [ "x${returntype}" = "xvoid" ]
1711 printf " gdbarch->${function} (${params});\n"
1713 printf " return gdbarch->${function} (${params});\n"
1718 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1719 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1721 printf " gdbarch->${function} = ${function};\n"
1723 elif class_is_variable_p
1726 printf "${returntype}\n"
1727 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1729 printf " gdb_assert (gdbarch != NULL);\n"
1730 if [ "x${invalid_p}" = "x0" ]
1732 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1733 elif [ -n "${invalid_p}" ]
1735 printf " /* Check variable is valid. */\n"
1736 printf " gdb_assert (!(${invalid_p}));\n"
1737 elif [ -n "${predefault}" ]
1739 printf " /* Check variable changed from pre-default. */\n"
1740 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1742 printf " if (gdbarch_debug >= 2)\n"
1743 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1744 printf " return gdbarch->${function};\n"
1748 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1749 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1751 printf " gdbarch->${function} = ${function};\n"
1753 elif class_is_info_p
1756 printf "${returntype}\n"
1757 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1759 printf " gdb_assert (gdbarch != NULL);\n"
1760 printf " if (gdbarch_debug >= 2)\n"
1761 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1762 printf " return gdbarch->${function};\n"
1767 # All the trailing guff
1771 /* Keep a registry of per-architecture data-pointers required by GDB
1778 gdbarch_data_pre_init_ftype *pre_init;
1779 gdbarch_data_post_init_ftype *post_init;
1782 struct gdbarch_data_registration
1784 struct gdbarch_data *data;
1785 struct gdbarch_data_registration *next;
1788 struct gdbarch_data_registry
1791 struct gdbarch_data_registration *registrations;
1794 struct gdbarch_data_registry gdbarch_data_registry =
1799 static struct gdbarch_data *
1800 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1801 gdbarch_data_post_init_ftype *post_init)
1803 struct gdbarch_data_registration **curr;
1804 /* Append the new registraration. */
1805 for (curr = &gdbarch_data_registry.registrations;
1807 curr = &(*curr)->next);
1808 (*curr) = XMALLOC (struct gdbarch_data_registration);
1809 (*curr)->next = NULL;
1810 (*curr)->data = XMALLOC (struct gdbarch_data);
1811 (*curr)->data->index = gdbarch_data_registry.nr++;
1812 (*curr)->data->pre_init = pre_init;
1813 (*curr)->data->post_init = post_init;
1814 (*curr)->data->init_p = 1;
1815 return (*curr)->data;
1818 struct gdbarch_data *
1819 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1821 return gdbarch_data_register (pre_init, NULL);
1824 struct gdbarch_data *
1825 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1827 return gdbarch_data_register (NULL, post_init);
1830 /* Create/delete the gdbarch data vector. */
1833 alloc_gdbarch_data (struct gdbarch *gdbarch)
1835 gdb_assert (gdbarch->data == NULL);
1836 gdbarch->nr_data = gdbarch_data_registry.nr;
1837 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1840 /* Initialize the current value of the specified per-architecture
1844 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1845 struct gdbarch_data *data,
1848 gdb_assert (data->index < gdbarch->nr_data);
1849 gdb_assert (gdbarch->data[data->index] == NULL);
1850 gdb_assert (data->pre_init == NULL);
1851 gdbarch->data[data->index] = pointer;
1854 /* Return the current value of the specified per-architecture
1858 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1860 gdb_assert (data->index < gdbarch->nr_data);
1861 if (gdbarch->data[data->index] == NULL)
1863 /* The data-pointer isn't initialized, call init() to get a
1865 if (data->pre_init != NULL)
1866 /* Mid architecture creation: pass just the obstack, and not
1867 the entire architecture, as that way it isn't possible for
1868 pre-init code to refer to undefined architecture
1870 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1871 else if (gdbarch->initialized_p
1872 && data->post_init != NULL)
1873 /* Post architecture creation: pass the entire architecture
1874 (as all fields are valid), but be careful to also detect
1875 recursive references. */
1877 gdb_assert (data->init_p);
1879 gdbarch->data[data->index] = data->post_init (gdbarch);
1883 /* The architecture initialization hasn't completed - punt -
1884 hope that the caller knows what they are doing. Once
1885 deprecated_set_gdbarch_data has been initialized, this can be
1886 changed to an internal error. */
1888 gdb_assert (gdbarch->data[data->index] != NULL);
1890 return gdbarch->data[data->index];
1895 /* Keep a registry of swapped data required by GDB modules. */
1900 struct gdbarch_swap_registration *source;
1901 struct gdbarch_swap *next;
1904 struct gdbarch_swap_registration
1907 unsigned long sizeof_data;
1908 gdbarch_swap_ftype *init;
1909 struct gdbarch_swap_registration *next;
1912 struct gdbarch_swap_registry
1915 struct gdbarch_swap_registration *registrations;
1918 struct gdbarch_swap_registry gdbarch_swap_registry =
1924 deprecated_register_gdbarch_swap (void *data,
1925 unsigned long sizeof_data,
1926 gdbarch_swap_ftype *init)
1928 struct gdbarch_swap_registration **rego;
1929 for (rego = &gdbarch_swap_registry.registrations;
1931 rego = &(*rego)->next);
1932 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1933 (*rego)->next = NULL;
1934 (*rego)->init = init;
1935 (*rego)->data = data;
1936 (*rego)->sizeof_data = sizeof_data;
1940 current_gdbarch_swap_init_hack (void)
1942 struct gdbarch_swap_registration *rego;
1943 struct gdbarch_swap **curr = ¤t_gdbarch->swap;
1944 for (rego = gdbarch_swap_registry.registrations;
1948 if (rego->data != NULL)
1950 (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1951 struct gdbarch_swap);
1952 (*curr)->source = rego;
1953 (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1955 (*curr)->next = NULL;
1956 curr = &(*curr)->next;
1958 if (rego->init != NULL)
1963 static struct gdbarch *
1964 current_gdbarch_swap_out_hack (void)
1966 struct gdbarch *old_gdbarch = current_gdbarch;
1967 struct gdbarch_swap *curr;
1969 gdb_assert (old_gdbarch != NULL);
1970 for (curr = old_gdbarch->swap;
1974 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1975 memset (curr->source->data, 0, curr->source->sizeof_data);
1977 current_gdbarch = NULL;
1982 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1984 struct gdbarch_swap *curr;
1986 gdb_assert (current_gdbarch == NULL);
1987 for (curr = new_gdbarch->swap;
1990 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1991 current_gdbarch = new_gdbarch;
1995 /* Keep a registry of the architectures known by GDB. */
1997 struct gdbarch_registration
1999 enum bfd_architecture bfd_architecture;
2000 gdbarch_init_ftype *init;
2001 gdbarch_dump_tdep_ftype *dump_tdep;
2002 struct gdbarch_list *arches;
2003 struct gdbarch_registration *next;
2006 static struct gdbarch_registration *gdbarch_registry = NULL;
2009 append_name (const char ***buf, int *nr, const char *name)
2011 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2017 gdbarch_printable_names (void)
2019 /* Accumulate a list of names based on the registed list of
2021 enum bfd_architecture a;
2023 const char **arches = NULL;
2024 struct gdbarch_registration *rego;
2025 for (rego = gdbarch_registry;
2029 const struct bfd_arch_info *ap;
2030 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2032 internal_error (__FILE__, __LINE__,
2033 "gdbarch_architecture_names: multi-arch unknown");
2036 append_name (&arches, &nr_arches, ap->printable_name);
2041 append_name (&arches, &nr_arches, NULL);
2047 gdbarch_register (enum bfd_architecture bfd_architecture,
2048 gdbarch_init_ftype *init,
2049 gdbarch_dump_tdep_ftype *dump_tdep)
2051 struct gdbarch_registration **curr;
2052 const struct bfd_arch_info *bfd_arch_info;
2053 /* Check that BFD recognizes this architecture */
2054 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2055 if (bfd_arch_info == NULL)
2057 internal_error (__FILE__, __LINE__,
2058 "gdbarch: Attempt to register unknown architecture (%d)",
2061 /* Check that we haven't seen this architecture before */
2062 for (curr = &gdbarch_registry;
2064 curr = &(*curr)->next)
2066 if (bfd_architecture == (*curr)->bfd_architecture)
2067 internal_error (__FILE__, __LINE__,
2068 "gdbarch: Duplicate registraration of architecture (%s)",
2069 bfd_arch_info->printable_name);
2073 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2074 bfd_arch_info->printable_name,
2077 (*curr) = XMALLOC (struct gdbarch_registration);
2078 (*curr)->bfd_architecture = bfd_architecture;
2079 (*curr)->init = init;
2080 (*curr)->dump_tdep = dump_tdep;
2081 (*curr)->arches = NULL;
2082 (*curr)->next = NULL;
2086 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2087 gdbarch_init_ftype *init)
2089 gdbarch_register (bfd_architecture, init, NULL);
2093 /* Look for an architecture using gdbarch_info. Base search on only
2094 BFD_ARCH_INFO and BYTE_ORDER. */
2096 struct gdbarch_list *
2097 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2098 const struct gdbarch_info *info)
2100 for (; arches != NULL; arches = arches->next)
2102 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2104 if (info->byte_order != arches->gdbarch->byte_order)
2106 if (info->osabi != arches->gdbarch->osabi)
2114 /* Find an architecture that matches the specified INFO. Create a new
2115 architecture if needed. Return that new architecture. Assumes
2116 that there is no current architecture. */
2118 static struct gdbarch *
2119 find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
2121 struct gdbarch *new_gdbarch;
2122 struct gdbarch_registration *rego;
2124 /* The existing architecture has been swapped out - all this code
2125 works from a clean slate. */
2126 gdb_assert (current_gdbarch == NULL);
2128 /* Fill in missing parts of the INFO struct using a number of
2129 sources: "set ..."; INFOabfd supplied; and the existing
2131 gdbarch_info_fill (old_gdbarch, &info);
2133 /* Must have found some sort of architecture. */
2134 gdb_assert (info.bfd_arch_info != NULL);
2138 fprintf_unfiltered (gdb_stdlog,
2139 "find_arch_by_info: info.bfd_arch_info %s\n",
2140 (info.bfd_arch_info != NULL
2141 ? info.bfd_arch_info->printable_name
2143 fprintf_unfiltered (gdb_stdlog,
2144 "find_arch_by_info: info.byte_order %d (%s)\n",
2146 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2147 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2149 fprintf_unfiltered (gdb_stdlog,
2150 "find_arch_by_info: info.osabi %d (%s)\n",
2151 info.osabi, gdbarch_osabi_name (info.osabi));
2152 fprintf_unfiltered (gdb_stdlog,
2153 "find_arch_by_info: info.abfd 0x%lx\n",
2155 fprintf_unfiltered (gdb_stdlog,
2156 "find_arch_by_info: info.tdep_info 0x%lx\n",
2157 (long) info.tdep_info);
2160 /* Find the tdep code that knows about this architecture. */
2161 for (rego = gdbarch_registry;
2164 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2169 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2170 "No matching architecture\n");
2174 /* Ask the tdep code for an architecture that matches "info". */
2175 new_gdbarch = rego->init (info, rego->arches);
2177 /* Did the tdep code like it? No. Reject the change and revert to
2178 the old architecture. */
2179 if (new_gdbarch == NULL)
2182 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2183 "Target rejected architecture\n");
2187 /* Is this a pre-existing architecture (as determined by already
2188 being initialized)? Move it to the front of the architecture
2189 list (keeping the list sorted Most Recently Used). */
2190 if (new_gdbarch->initialized_p)
2192 struct gdbarch_list **list;
2193 struct gdbarch_list *this;
2195 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2196 "Previous architecture 0x%08lx (%s) selected\n",
2198 new_gdbarch->bfd_arch_info->printable_name);
2199 /* Find the existing arch in the list. */
2200 for (list = ®o->arches;
2201 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2202 list = &(*list)->next);
2203 /* It had better be in the list of architectures. */
2204 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2207 (*list) = this->next;
2208 /* Insert THIS at the front. */
2209 this->next = rego->arches;
2210 rego->arches = this;
2215 /* It's a new architecture. */
2217 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2218 "New architecture 0x%08lx (%s) selected\n",
2220 new_gdbarch->bfd_arch_info->printable_name);
2222 /* Insert the new architecture into the front of the architecture
2223 list (keep the list sorted Most Recently Used). */
2225 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2226 this->next = rego->arches;
2227 this->gdbarch = new_gdbarch;
2228 rego->arches = this;
2231 /* Check that the newly installed architecture is valid. Plug in
2232 any post init values. */
2233 new_gdbarch->dump_tdep = rego->dump_tdep;
2234 verify_gdbarch (new_gdbarch);
2235 new_gdbarch->initialized_p = 1;
2237 /* Initialize any per-architecture swap areas. This phase requires
2238 a valid global CURRENT_GDBARCH. Set it momentarially, and then
2239 swap the entire architecture out. */
2240 current_gdbarch = new_gdbarch;
2241 current_gdbarch_swap_init_hack ();
2242 current_gdbarch_swap_out_hack ();
2245 gdbarch_dump (new_gdbarch, gdb_stdlog);
2251 gdbarch_find_by_info (struct gdbarch_info info)
2253 /* Save the previously selected architecture, setting the global to
2254 NULL. This stops things like gdbarch->init() trying to use the
2255 previous architecture's configuration. The previous architecture
2256 may not even be of the same architecture family. The most recent
2257 architecture of the same family is found at the head of the
2258 rego->arches list. */
2259 struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2261 /* Find the specified architecture. */
2262 struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
2264 /* Restore the existing architecture. */
2265 gdb_assert (current_gdbarch == NULL);
2266 current_gdbarch_swap_in_hack (old_gdbarch);
2271 /* Make the specified architecture current, swapping the existing one
2275 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2277 gdb_assert (new_gdbarch != NULL);
2278 gdb_assert (current_gdbarch != NULL);
2279 gdb_assert (new_gdbarch->initialized_p);
2280 current_gdbarch_swap_out_hack ();
2281 current_gdbarch_swap_in_hack (new_gdbarch);
2282 architecture_changed_event ();
2285 extern void _initialize_gdbarch (void);
2288 _initialize_gdbarch (void)
2290 struct cmd_list_element *c;
2292 add_show_from_set (add_set_cmd ("arch",
2295 (char *)&gdbarch_debug,
2296 "Set architecture debugging.\\n\\
2297 When non-zero, architecture debugging is enabled.", &setdebuglist),
2299 c = add_set_cmd ("archdebug",
2302 (char *)&gdbarch_debug,
2303 "Set architecture debugging.\\n\\
2304 When non-zero, architecture debugging is enabled.", &setlist);
2306 deprecate_cmd (c, "set debug arch");
2307 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2313 #../move-if-change new-gdbarch.c gdbarch.c
2314 compare_new gdbarch.c