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_START_OFFSET can be deleted.
529 v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset
530 # DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET can be deleted.
531 v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset
532 # DEPRECATED_CALL_DUMMY_WORDS can be deleted.
533 v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx
534 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS.
535 v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0
536 # DEPRECATED_FIX_CALL_DUMMY can be deleted. For the SPARC, implement
537 # PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK.
538 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
539 # This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al.
540 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
541 # Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME.
542 F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:-
544 F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs
545 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
546 M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
547 M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
548 # MAP a GDB RAW register number onto a simulator register number. See
549 # also include/...-sim.h.
550 f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0
551 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes
552 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0
553 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0
554 # setjmp/longjmp support.
555 F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc
556 # NOTE: cagney/2002-11-24: This function with predicate has a valid
557 # (callable) initial value. As a consequence, even when the predicate
558 # is false, the corresponding function works. This simplifies the
559 # migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(),
560 # doesn't need to be modified.
561 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
562 F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev
564 v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion:::::::
565 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
567 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
568 # For raw <-> cooked register conversions, replaced by pseudo registers.
569 F::DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr
570 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
571 # For raw <-> cooked register conversions, replaced by pseudo registers.
572 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
573 # For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al.
574 # For raw <-> cooked register conversions, replaced by pseudo registers.
575 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
577 f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0
578 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
579 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
581 f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0
582 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
583 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf
585 F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:-
586 # NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS.
587 F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
589 # It has been suggested that this, well actually its predecessor,
590 # should take the type/value of the function to be called and not the
591 # return type. This is left as an exercise for the reader.
593 M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf
595 # The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE,
596 # STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded
599 f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0
600 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
601 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
602 f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf
603 f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf
604 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
606 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
607 # ABI suitable for the implementation of a robust extract
608 # struct-convention return-value address method (the sparc saves the
609 # address in the callers frame). All the other cases so far examined,
610 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
611 # erreneous - the code was incorrectly assuming that the return-value
612 # address, stored in a register, was preserved across the entire
615 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
616 # the ABIs that are still to be analyzed - perhaps this should simply
617 # be deleted. The commented out extract_returned_value_address method
618 # is provided as a starting point for the 32-bit SPARC. It, or
619 # something like it, along with changes to both infcmd.c and stack.c
620 # will be needed for that case to work. NB: It is passed the callers
621 # frame since it is only after the callee has returned that this
624 #M:::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
625 F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
627 F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame
628 F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame
630 f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0
631 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0
632 f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0:
633 M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
634 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0
635 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0
636 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0
637 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0
639 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
641 v::FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:::0
642 # DEPRECATED_FRAMELESS_FUNCTION_INVOCATION is not needed. The new
643 # frame code works regardless of the type of frame - frameless,
644 # stackless, or normal.
645 F::DEPRECATED_FRAMELESS_FUNCTION_INVOCATION:int:deprecated_frameless_function_invocation:struct frame_info *fi:fi
646 F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame
647 F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe
648 # DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC. Please
649 # note, per UNWIND_PC's doco, that while the two have similar
650 # interfaces they have very different underlying implementations.
651 F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi
652 M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
653 M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
654 # DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame
655 # frame-base. Enable frame-base before frame-unwind.
656 F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
657 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
658 # frame-base. Enable frame-base before frame-unwind.
659 F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base
660 F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame
661 F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame
663 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
664 # to frame_align and the requirement that methods such as
665 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
667 F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
668 M:::CORE_ADDR:frame_align:CORE_ADDR address:address
669 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
670 # stabs_argument_has_addr.
671 F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
672 m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0
673 v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size
675 v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name
676 v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name
677 v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name
678 m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0
679 # On some machines there are bits in addresses which are not really
680 # part of the address, but are used by the kernel, the hardware, etc.
681 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
682 # we get a "real" address such as one would find in a symbol table.
683 # This is used only for addresses of instructions, and even then I'm
684 # not sure it's used in all contexts. It exists to deal with there
685 # being a few stray bits in the PC which would mislead us, not as some
686 # sort of generic thing to handle alignment or segmentation (it's
687 # possible it should be in TARGET_READ_PC instead).
688 f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0
689 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
691 f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0
692 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
693 # the target needs software single step. An ISA method to implement it.
695 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
696 # using the breakpoint system instead of blatting memory directly (as with rs6000).
698 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
699 # single step. If not, then implement single step using breakpoints.
700 F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
701 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
702 # disassembler. Perhaphs objdump can handle it?
703 f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0:
704 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0
707 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
708 # evaluates non-zero, this is the address where the debugger will place
709 # a step-resume breakpoint to get us past the dynamic linker.
710 m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0
711 # For SVR4 shared libraries, each call goes through a small piece of
712 # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates
713 # to nonzero if we are currently stopped in one of these.
714 f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0
716 # Some systems also have trampoline code for returning from shared libs.
717 f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0
719 # A target might have problems with watchpoints as soon as the stack
720 # frame of the current function has been destroyed. This mostly happens
721 # as the first action in a funtion's epilogue. in_function_epilogue_p()
722 # is defined to return a non-zero value if either the given addr is one
723 # instruction after the stack destroying instruction up to the trailing
724 # return instruction or if we can figure out that the stack frame has
725 # already been invalidated regardless of the value of addr. Targets
726 # which don't suffer from that problem could just let this functionality
728 m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0
729 # Given a vector of command-line arguments, return a newly allocated
730 # string which, when passed to the create_inferior function, will be
731 # parsed (on Unix systems, by the shell) to yield the same vector.
732 # This function should call error() if the argument vector is not
733 # representable for this target or if this target does not support
734 # command-line arguments.
735 # ARGC is the number of elements in the vector.
736 # ARGV is an array of strings, one per argument.
737 m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0
738 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
739 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
740 v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC
741 v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0
742 v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0
743 F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
744 M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags
745 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
746 # Is a register in a group
747 m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0
748 # Fetch the pointer to the ith function argument.
749 F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
751 # Return the appropriate register set for a core file section with
752 # name SECT_NAME and size SECT_SIZE.
753 M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
760 exec > new-gdbarch.log
761 function_list | while do_read
764 ${class} ${macro}(${actual})
765 ${returntype} ${function} ($formal)${attrib}
769 eval echo \"\ \ \ \ ${r}=\${${r}}\"
771 if class_is_predicate_p && fallback_default_p
773 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2
777 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
779 echo "Error: postdefault is useless when invalid_p=0" 1>&2
783 if class_is_multiarch_p
785 if class_is_predicate_p ; then :
786 elif test "x${predefault}" = "x"
788 echo "Error: pure multi-arch function must have a predefault" 1>&2
797 compare_new gdbarch.log
803 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
805 /* Dynamic architecture support for GDB, the GNU debugger.
807 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free
808 Software Foundation, Inc.
810 This file is part of GDB.
812 This program is free software; you can redistribute it and/or modify
813 it under the terms of the GNU General Public License as published by
814 the Free Software Foundation; either version 2 of the License, or
815 (at your option) any later version.
817 This program is distributed in the hope that it will be useful,
818 but WITHOUT ANY WARRANTY; without even the implied warranty of
819 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
820 GNU General Public License for more details.
822 You should have received a copy of the GNU General Public License
823 along with this program; if not, write to the Free Software
824 Foundation, Inc., 59 Temple Place - Suite 330,
825 Boston, MA 02111-1307, USA. */
827 /* This file was created with the aid of \`\`gdbarch.sh''.
829 The Bourne shell script \`\`gdbarch.sh'' creates the files
830 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
831 against the existing \`\`gdbarch.[hc]''. Any differences found
834 If editing this file, please also run gdbarch.sh and merge any
835 changes into that script. Conversely, when making sweeping changes
836 to this file, modifying gdbarch.sh and using its output may prove
857 struct minimal_symbol;
861 struct disassemble_info;
865 extern struct gdbarch *current_gdbarch;
867 /* If any of the following are defined, the target wasn't correctly
870 #if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE)
871 #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file."
878 printf "/* The following are pre-initialized by GDBARCH. */\n"
879 function_list | while do_read
884 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
885 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
886 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
887 printf "#error \"Non multi-arch definition of ${macro}\"\n"
889 printf "#if !defined (${macro})\n"
890 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
898 printf "/* The following are initialized by the target dependent code. */\n"
899 function_list | while do_read
901 if [ -n "${comment}" ]
903 echo "${comment}" | sed \
908 if class_is_multiarch_p
910 if class_is_predicate_p
913 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
916 if class_is_predicate_p
919 printf "#if defined (${macro})\n"
920 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
921 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n"
922 printf "#if !defined (${macro}_P)\n"
923 printf "#define ${macro}_P() (1)\n"
927 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
928 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n"
929 printf "#error \"Non multi-arch definition of ${macro}\"\n"
931 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n"
932 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
936 if class_is_variable_p
939 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
940 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
941 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
942 printf "#error \"Non multi-arch definition of ${macro}\"\n"
944 printf "#if !defined (${macro})\n"
945 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
948 if class_is_function_p
951 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
953 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
954 elif class_is_multiarch_p
956 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
958 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
960 if [ "x${formal}" = "xvoid" ]
962 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
964 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
966 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
967 if class_is_multiarch_p ; then :
969 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n"
970 printf "#error \"Non multi-arch definition of ${macro}\"\n"
972 if [ "x${actual}" = "x" ]
974 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
975 elif [ "x${actual}" = "x-" ]
977 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
979 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
981 printf "#if !defined (${macro})\n"
982 if [ "x${actual}" = "x" ]
984 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
985 elif [ "x${actual}" = "x-" ]
987 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
989 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
999 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1002 /* Mechanism for co-ordinating the selection of a specific
1005 GDB targets (*-tdep.c) can register an interest in a specific
1006 architecture. Other GDB components can register a need to maintain
1007 per-architecture data.
1009 The mechanisms below ensures that there is only a loose connection
1010 between the set-architecture command and the various GDB
1011 components. Each component can independently register their need
1012 to maintain architecture specific data with gdbarch.
1016 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1019 The more traditional mega-struct containing architecture specific
1020 data for all the various GDB components was also considered. Since
1021 GDB is built from a variable number of (fairly independent)
1022 components it was determined that the global aproach was not
1026 /* Register a new architectural family with GDB.
1028 Register support for the specified ARCHITECTURE with GDB. When
1029 gdbarch determines that the specified architecture has been
1030 selected, the corresponding INIT function is called.
1034 The INIT function takes two parameters: INFO which contains the
1035 information available to gdbarch about the (possibly new)
1036 architecture; ARCHES which is a list of the previously created
1037 \`\`struct gdbarch'' for this architecture.
1039 The INFO parameter is, as far as possible, be pre-initialized with
1040 information obtained from INFO.ABFD or the previously selected
1043 The ARCHES parameter is a linked list (sorted most recently used)
1044 of all the previously created architures for this architecture
1045 family. The (possibly NULL) ARCHES->gdbarch can used to access
1046 values from the previously selected architecture for this
1047 architecture family. The global \`\`current_gdbarch'' shall not be
1050 The INIT function shall return any of: NULL - indicating that it
1051 doesn't recognize the selected architecture; an existing \`\`struct
1052 gdbarch'' from the ARCHES list - indicating that the new
1053 architecture is just a synonym for an earlier architecture (see
1054 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1055 - that describes the selected architecture (see gdbarch_alloc()).
1057 The DUMP_TDEP function shall print out all target specific values.
1058 Care should be taken to ensure that the function works in both the
1059 multi-arch and non- multi-arch cases. */
1063 struct gdbarch *gdbarch;
1064 struct gdbarch_list *next;
1069 /* Use default: NULL (ZERO). */
1070 const struct bfd_arch_info *bfd_arch_info;
1072 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1075 /* Use default: NULL (ZERO). */
1078 /* Use default: NULL (ZERO). */
1079 struct gdbarch_tdep_info *tdep_info;
1081 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1082 enum gdb_osabi osabi;
1085 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1086 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1088 /* DEPRECATED - use gdbarch_register() */
1089 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1091 extern void gdbarch_register (enum bfd_architecture architecture,
1092 gdbarch_init_ftype *,
1093 gdbarch_dump_tdep_ftype *);
1096 /* Return a freshly allocated, NULL terminated, array of the valid
1097 architecture names. Since architectures are registered during the
1098 _initialize phase this function only returns useful information
1099 once initialization has been completed. */
1101 extern const char **gdbarch_printable_names (void);
1104 /* Helper function. Search the list of ARCHES for a GDBARCH that
1105 matches the information provided by INFO. */
1107 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1110 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1111 basic initialization using values obtained from the INFO andTDEP
1112 parameters. set_gdbarch_*() functions are called to complete the
1113 initialization of the object. */
1115 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1118 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1119 It is assumed that the caller freeds the \`\`struct
1122 extern void gdbarch_free (struct gdbarch *);
1125 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1126 obstack. The memory is freed when the corresponding architecture
1129 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1130 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1131 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1134 /* Helper function. Force an update of the current architecture.
1136 The actual architecture selected is determined by INFO, \`\`(gdb) set
1137 architecture'' et.al., the existing architecture and BFD's default
1138 architecture. INFO should be initialized to zero and then selected
1139 fields should be updated.
1141 Returns non-zero if the update succeeds */
1143 extern int gdbarch_update_p (struct gdbarch_info info);
1146 /* Helper function. Find an architecture matching info.
1148 INFO should be initialized using gdbarch_info_init, relevant fields
1149 set, and then finished using gdbarch_info_fill.
1151 Returns the corresponding architecture, or NULL if no matching
1152 architecture was found. "current_gdbarch" is not updated. */
1154 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1157 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1159 FIXME: kettenis/20031124: Of the functions that follow, only
1160 gdbarch_from_bfd is supposed to survive. The others will
1161 dissappear since in the future GDB will (hopefully) be truly
1162 multi-arch. However, for now we're still stuck with the concept of
1163 a single active architecture. */
1165 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1168 /* Register per-architecture data-pointer.
1170 Reserve space for a per-architecture data-pointer. An identifier
1171 for the reserved data-pointer is returned. That identifer should
1172 be saved in a local static variable.
1174 Memory for the per-architecture data shall be allocated using
1175 gdbarch_obstack_zalloc. That memory will be deleted when the
1176 corresponding architecture object is deleted.
1178 When a previously created architecture is re-selected, the
1179 per-architecture data-pointer for that previous architecture is
1180 restored. INIT() is not re-called.
1182 Multiple registrarants for any architecture are allowed (and
1183 strongly encouraged). */
1185 struct gdbarch_data;
1187 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1188 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1189 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1190 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1191 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1192 struct gdbarch_data *data,
1195 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1199 /* Register per-architecture memory region.
1201 Provide a memory-region swap mechanism. Per-architecture memory
1202 region are created. These memory regions are swapped whenever the
1203 architecture is changed. For a new architecture, the memory region
1204 is initialized with zero (0) and the INIT function is called.
1206 Memory regions are swapped / initialized in the order that they are
1207 registered. NULL DATA and/or INIT values can be specified.
1209 New code should use gdbarch_data_register_*(). */
1211 typedef void (gdbarch_swap_ftype) (void);
1212 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1213 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1217 /* Set the dynamic target-system-dependent parameters (architecture,
1218 byte-order, ...) using information found in the BFD */
1220 extern void set_gdbarch_from_file (bfd *);
1223 /* Initialize the current architecture to the "first" one we find on
1226 extern void initialize_current_architecture (void);
1228 /* gdbarch trace variable */
1229 extern int gdbarch_debug;
1231 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1236 #../move-if-change new-gdbarch.h gdbarch.h
1237 compare_new gdbarch.h
1244 exec > new-gdbarch.c
1249 #include "arch-utils.h"
1252 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1255 #include "floatformat.h"
1257 #include "gdb_assert.h"
1258 #include "gdb_string.h"
1259 #include "gdb-events.h"
1260 #include "reggroups.h"
1262 #include "gdb_obstack.h"
1264 /* Static function declarations */
1266 static void alloc_gdbarch_data (struct gdbarch *);
1268 /* Non-zero if we want to trace architecture code. */
1270 #ifndef GDBARCH_DEBUG
1271 #define GDBARCH_DEBUG 0
1273 int gdbarch_debug = GDBARCH_DEBUG;
1277 # gdbarch open the gdbarch object
1279 printf "/* Maintain the struct gdbarch object */\n"
1281 printf "struct gdbarch\n"
1283 printf " /* Has this architecture been fully initialized? */\n"
1284 printf " int initialized_p;\n"
1286 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1287 printf " struct obstack *obstack;\n"
1289 printf " /* basic architectural information */\n"
1290 function_list | while do_read
1294 printf " ${returntype} ${function};\n"
1298 printf " /* target specific vector. */\n"
1299 printf " struct gdbarch_tdep *tdep;\n"
1300 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1302 printf " /* per-architecture data-pointers */\n"
1303 printf " unsigned nr_data;\n"
1304 printf " void **data;\n"
1306 printf " /* per-architecture swap-regions */\n"
1307 printf " struct gdbarch_swap *swap;\n"
1310 /* Multi-arch values.
1312 When extending this structure you must:
1314 Add the field below.
1316 Declare set/get functions and define the corresponding
1319 gdbarch_alloc(): If zero/NULL is not a suitable default,
1320 initialize the new field.
1322 verify_gdbarch(): Confirm that the target updated the field
1325 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1328 \`\`startup_gdbarch()'': Append an initial value to the static
1329 variable (base values on the host's c-type system).
1331 get_gdbarch(): Implement the set/get functions (probably using
1332 the macro's as shortcuts).
1337 function_list | while do_read
1339 if class_is_variable_p
1341 printf " ${returntype} ${function};\n"
1342 elif class_is_function_p
1344 printf " gdbarch_${function}_ftype *${function}${attrib};\n"
1349 # A pre-initialized vector
1353 /* The default architecture uses host values (for want of a better
1357 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1359 printf "struct gdbarch startup_gdbarch =\n"
1361 printf " 1, /* Always initialized. */\n"
1362 printf " NULL, /* The obstack. */\n"
1363 printf " /* basic architecture information */\n"
1364 function_list | while do_read
1368 printf " ${staticdefault}, /* ${function} */\n"
1372 /* target specific vector and its dump routine */
1374 /*per-architecture data-pointers and swap regions */
1376 /* Multi-arch values */
1378 function_list | while do_read
1380 if class_is_function_p || class_is_variable_p
1382 printf " ${staticdefault}, /* ${function} */\n"
1386 /* startup_gdbarch() */
1389 struct gdbarch *current_gdbarch = &startup_gdbarch;
1392 # Create a new gdbarch struct
1395 /* Create a new \`\`struct gdbarch'' based on information provided by
1396 \`\`struct gdbarch_info''. */
1401 gdbarch_alloc (const struct gdbarch_info *info,
1402 struct gdbarch_tdep *tdep)
1404 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1405 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1406 the current local architecture and not the previous global
1407 architecture. This ensures that the new architectures initial
1408 values are not influenced by the previous architecture. Once
1409 everything is parameterised with gdbarch, this will go away. */
1410 struct gdbarch *current_gdbarch;
1412 /* Create an obstack for allocating all the per-architecture memory,
1413 then use that to allocate the architecture vector. */
1414 struct obstack *obstack = XMALLOC (struct obstack);
1415 obstack_init (obstack);
1416 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1417 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1418 current_gdbarch->obstack = obstack;
1420 alloc_gdbarch_data (current_gdbarch);
1422 current_gdbarch->tdep = tdep;
1425 function_list | while do_read
1429 printf " current_gdbarch->${function} = info->${function};\n"
1433 printf " /* Force the explicit initialization of these. */\n"
1434 function_list | while do_read
1436 if class_is_function_p || class_is_variable_p
1438 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1440 printf " current_gdbarch->${function} = ${predefault};\n"
1445 /* gdbarch_alloc() */
1447 return current_gdbarch;
1451 # Free a gdbarch struct.
1455 /* Allocate extra space using the per-architecture obstack. */
1458 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1460 void *data = obstack_alloc (arch->obstack, size);
1461 memset (data, 0, size);
1466 /* Free a gdbarch struct. This should never happen in normal
1467 operation --- once you've created a gdbarch, you keep it around.
1468 However, if an architecture's init function encounters an error
1469 building the structure, it may need to clean up a partially
1470 constructed gdbarch. */
1473 gdbarch_free (struct gdbarch *arch)
1475 struct obstack *obstack;
1476 gdb_assert (arch != NULL);
1477 gdb_assert (!arch->initialized_p);
1478 obstack = arch->obstack;
1479 obstack_free (obstack, 0); /* Includes the ARCH. */
1484 # verify a new architecture
1488 /* Ensure that all values in a GDBARCH are reasonable. */
1490 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1491 just happens to match the global variable \`\`current_gdbarch''. That
1492 way macros refering to that variable get the local and not the global
1493 version - ulgh. Once everything is parameterised with gdbarch, this
1497 verify_gdbarch (struct gdbarch *current_gdbarch)
1499 struct ui_file *log;
1500 struct cleanup *cleanups;
1503 log = mem_fileopen ();
1504 cleanups = make_cleanup_ui_file_delete (log);
1506 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1507 fprintf_unfiltered (log, "\n\tbyte-order");
1508 if (current_gdbarch->bfd_arch_info == NULL)
1509 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1510 /* Check those that need to be defined for the given multi-arch level. */
1512 function_list | while do_read
1514 if class_is_function_p || class_is_variable_p
1516 if [ "x${invalid_p}" = "x0" ]
1518 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1519 elif class_is_predicate_p
1521 printf " /* Skip verify of ${function}, has predicate */\n"
1522 # FIXME: See do_read for potential simplification
1523 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1525 printf " if (${invalid_p})\n"
1526 printf " current_gdbarch->${function} = ${postdefault};\n"
1527 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1529 printf " if (current_gdbarch->${function} == ${predefault})\n"
1530 printf " current_gdbarch->${function} = ${postdefault};\n"
1531 elif [ -n "${postdefault}" ]
1533 printf " if (current_gdbarch->${function} == 0)\n"
1534 printf " current_gdbarch->${function} = ${postdefault};\n"
1535 elif [ -n "${invalid_p}" ]
1537 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1538 printf " && (${invalid_p}))\n"
1539 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1540 elif [ -n "${predefault}" ]
1542 printf " if ((GDB_MULTI_ARCH ${gt_level})\n"
1543 printf " && (current_gdbarch->${function} == ${predefault}))\n"
1544 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1549 buf = ui_file_xstrdup (log, &dummy);
1550 make_cleanup (xfree, buf);
1551 if (strlen (buf) > 0)
1552 internal_error (__FILE__, __LINE__,
1553 "verify_gdbarch: the following are invalid ...%s",
1555 do_cleanups (cleanups);
1559 # dump the structure
1563 /* Print out the details of the current architecture. */
1565 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1566 just happens to match the global variable \`\`current_gdbarch''. That
1567 way macros refering to that variable get the local and not the global
1568 version - ulgh. Once everything is parameterised with gdbarch, this
1572 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1574 fprintf_unfiltered (file,
1575 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n",
1578 function_list | sort -t: -k 3 | while do_read
1580 # First the predicate
1581 if class_is_predicate_p
1583 if class_is_multiarch_p
1585 printf " fprintf_unfiltered (file,\n"
1586 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1587 printf " gdbarch_${function}_p (current_gdbarch));\n"
1589 printf "#ifdef ${macro}_P\n"
1590 printf " fprintf_unfiltered (file,\n"
1591 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1592 printf " \"${macro}_P()\",\n"
1593 printf " XSTRING (${macro}_P ()));\n"
1594 printf " fprintf_unfiltered (file,\n"
1595 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n"
1596 printf " ${macro}_P ());\n"
1600 # multiarch functions don't have macros.
1601 if class_is_multiarch_p
1603 printf " fprintf_unfiltered (file,\n"
1604 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n"
1605 printf " (long) current_gdbarch->${function});\n"
1608 # Print the macro definition.
1609 printf "#ifdef ${macro}\n"
1610 if class_is_function_p
1612 printf " fprintf_unfiltered (file,\n"
1613 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1614 printf " \"${macro}(${actual})\",\n"
1615 printf " XSTRING (${macro} (${actual})));\n"
1617 printf " fprintf_unfiltered (file,\n"
1618 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1619 printf " XSTRING (${macro}));\n"
1621 if [ "x${print_p}" = "x()" ]
1623 printf " gdbarch_dump_${function} (current_gdbarch);\n"
1624 elif [ "x${print_p}" = "x0" ]
1626 printf " /* skip print of ${macro}, print_p == 0. */\n"
1627 elif [ -n "${print_p}" ]
1629 printf " if (${print_p})\n"
1630 printf " fprintf_unfiltered (file,\n"
1631 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1632 printf " ${print});\n"
1633 elif class_is_function_p
1635 printf " fprintf_unfiltered (file,\n"
1636 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n"
1637 printf " (long) current_gdbarch->${function}\n"
1638 printf " /*${macro} ()*/);\n"
1640 printf " fprintf_unfiltered (file,\n"
1641 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}"
1642 printf " ${print});\n"
1647 if (current_gdbarch->dump_tdep != NULL)
1648 current_gdbarch->dump_tdep (current_gdbarch, file);
1656 struct gdbarch_tdep *
1657 gdbarch_tdep (struct gdbarch *gdbarch)
1659 if (gdbarch_debug >= 2)
1660 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1661 return gdbarch->tdep;
1665 function_list | while do_read
1667 if class_is_predicate_p
1671 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1673 printf " gdb_assert (gdbarch != NULL);\n"
1674 printf " return ${predicate};\n"
1677 if class_is_function_p
1680 printf "${returntype}\n"
1681 if [ "x${formal}" = "xvoid" ]
1683 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1685 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1688 printf " gdb_assert (gdbarch != NULL);\n"
1689 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1690 if class_is_predicate_p && test -n "${predefault}"
1692 # Allow a call to a function with a predicate.
1693 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1695 printf " if (gdbarch_debug >= 2)\n"
1696 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1697 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1699 if class_is_multiarch_p
1706 if class_is_multiarch_p
1708 params="gdbarch, ${actual}"
1713 if [ "x${returntype}" = "xvoid" ]
1715 printf " gdbarch->${function} (${params});\n"
1717 printf " return gdbarch->${function} (${params});\n"
1722 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1723 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1725 printf " gdbarch->${function} = ${function};\n"
1727 elif class_is_variable_p
1730 printf "${returntype}\n"
1731 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1733 printf " gdb_assert (gdbarch != NULL);\n"
1734 if [ "x${invalid_p}" = "x0" ]
1736 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1737 elif [ -n "${invalid_p}" ]
1739 printf " /* Check variable is valid. */\n"
1740 printf " gdb_assert (!(${invalid_p}));\n"
1741 elif [ -n "${predefault}" ]
1743 printf " /* Check variable changed from pre-default. */\n"
1744 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1746 printf " if (gdbarch_debug >= 2)\n"
1747 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1748 printf " return gdbarch->${function};\n"
1752 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1753 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1755 printf " gdbarch->${function} = ${function};\n"
1757 elif class_is_info_p
1760 printf "${returntype}\n"
1761 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1763 printf " gdb_assert (gdbarch != NULL);\n"
1764 printf " if (gdbarch_debug >= 2)\n"
1765 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1766 printf " return gdbarch->${function};\n"
1771 # All the trailing guff
1775 /* Keep a registry of per-architecture data-pointers required by GDB
1782 gdbarch_data_pre_init_ftype *pre_init;
1783 gdbarch_data_post_init_ftype *post_init;
1786 struct gdbarch_data_registration
1788 struct gdbarch_data *data;
1789 struct gdbarch_data_registration *next;
1792 struct gdbarch_data_registry
1795 struct gdbarch_data_registration *registrations;
1798 struct gdbarch_data_registry gdbarch_data_registry =
1803 static struct gdbarch_data *
1804 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1805 gdbarch_data_post_init_ftype *post_init)
1807 struct gdbarch_data_registration **curr;
1808 /* Append the new registraration. */
1809 for (curr = &gdbarch_data_registry.registrations;
1811 curr = &(*curr)->next);
1812 (*curr) = XMALLOC (struct gdbarch_data_registration);
1813 (*curr)->next = NULL;
1814 (*curr)->data = XMALLOC (struct gdbarch_data);
1815 (*curr)->data->index = gdbarch_data_registry.nr++;
1816 (*curr)->data->pre_init = pre_init;
1817 (*curr)->data->post_init = post_init;
1818 (*curr)->data->init_p = 1;
1819 return (*curr)->data;
1822 struct gdbarch_data *
1823 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1825 return gdbarch_data_register (pre_init, NULL);
1828 struct gdbarch_data *
1829 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1831 return gdbarch_data_register (NULL, post_init);
1834 /* Create/delete the gdbarch data vector. */
1837 alloc_gdbarch_data (struct gdbarch *gdbarch)
1839 gdb_assert (gdbarch->data == NULL);
1840 gdbarch->nr_data = gdbarch_data_registry.nr;
1841 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1844 /* Initialize the current value of the specified per-architecture
1848 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1849 struct gdbarch_data *data,
1852 gdb_assert (data->index < gdbarch->nr_data);
1853 gdb_assert (gdbarch->data[data->index] == NULL);
1854 gdb_assert (data->pre_init == NULL);
1855 gdbarch->data[data->index] = pointer;
1858 /* Return the current value of the specified per-architecture
1862 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1864 gdb_assert (data->index < gdbarch->nr_data);
1865 if (gdbarch->data[data->index] == NULL)
1867 /* The data-pointer isn't initialized, call init() to get a
1869 if (data->pre_init != NULL)
1870 /* Mid architecture creation: pass just the obstack, and not
1871 the entire architecture, as that way it isn't possible for
1872 pre-init code to refer to undefined architecture
1874 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1875 else if (gdbarch->initialized_p
1876 && data->post_init != NULL)
1877 /* Post architecture creation: pass the entire architecture
1878 (as all fields are valid), but be careful to also detect
1879 recursive references. */
1881 gdb_assert (data->init_p);
1883 gdbarch->data[data->index] = data->post_init (gdbarch);
1887 /* The architecture initialization hasn't completed - punt -
1888 hope that the caller knows what they are doing. Once
1889 deprecated_set_gdbarch_data has been initialized, this can be
1890 changed to an internal error. */
1892 gdb_assert (gdbarch->data[data->index] != NULL);
1894 return gdbarch->data[data->index];
1899 /* Keep a registry of swapped data required by GDB modules. */
1904 struct gdbarch_swap_registration *source;
1905 struct gdbarch_swap *next;
1908 struct gdbarch_swap_registration
1911 unsigned long sizeof_data;
1912 gdbarch_swap_ftype *init;
1913 struct gdbarch_swap_registration *next;
1916 struct gdbarch_swap_registry
1919 struct gdbarch_swap_registration *registrations;
1922 struct gdbarch_swap_registry gdbarch_swap_registry =
1928 deprecated_register_gdbarch_swap (void *data,
1929 unsigned long sizeof_data,
1930 gdbarch_swap_ftype *init)
1932 struct gdbarch_swap_registration **rego;
1933 for (rego = &gdbarch_swap_registry.registrations;
1935 rego = &(*rego)->next);
1936 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1937 (*rego)->next = NULL;
1938 (*rego)->init = init;
1939 (*rego)->data = data;
1940 (*rego)->sizeof_data = sizeof_data;
1944 current_gdbarch_swap_init_hack (void)
1946 struct gdbarch_swap_registration *rego;
1947 struct gdbarch_swap **curr = ¤t_gdbarch->swap;
1948 for (rego = gdbarch_swap_registry.registrations;
1952 if (rego->data != NULL)
1954 (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1955 struct gdbarch_swap);
1956 (*curr)->source = rego;
1957 (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1959 (*curr)->next = NULL;
1960 curr = &(*curr)->next;
1962 if (rego->init != NULL)
1967 static struct gdbarch *
1968 current_gdbarch_swap_out_hack (void)
1970 struct gdbarch *old_gdbarch = current_gdbarch;
1971 struct gdbarch_swap *curr;
1973 gdb_assert (old_gdbarch != NULL);
1974 for (curr = old_gdbarch->swap;
1978 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1979 memset (curr->source->data, 0, curr->source->sizeof_data);
1981 current_gdbarch = NULL;
1986 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1988 struct gdbarch_swap *curr;
1990 gdb_assert (current_gdbarch == NULL);
1991 for (curr = new_gdbarch->swap;
1994 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1995 current_gdbarch = new_gdbarch;
1999 /* Keep a registry of the architectures known by GDB. */
2001 struct gdbarch_registration
2003 enum bfd_architecture bfd_architecture;
2004 gdbarch_init_ftype *init;
2005 gdbarch_dump_tdep_ftype *dump_tdep;
2006 struct gdbarch_list *arches;
2007 struct gdbarch_registration *next;
2010 static struct gdbarch_registration *gdbarch_registry = NULL;
2013 append_name (const char ***buf, int *nr, const char *name)
2015 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2021 gdbarch_printable_names (void)
2023 /* Accumulate a list of names based on the registed list of
2025 enum bfd_architecture a;
2027 const char **arches = NULL;
2028 struct gdbarch_registration *rego;
2029 for (rego = gdbarch_registry;
2033 const struct bfd_arch_info *ap;
2034 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2036 internal_error (__FILE__, __LINE__,
2037 "gdbarch_architecture_names: multi-arch unknown");
2040 append_name (&arches, &nr_arches, ap->printable_name);
2045 append_name (&arches, &nr_arches, NULL);
2051 gdbarch_register (enum bfd_architecture bfd_architecture,
2052 gdbarch_init_ftype *init,
2053 gdbarch_dump_tdep_ftype *dump_tdep)
2055 struct gdbarch_registration **curr;
2056 const struct bfd_arch_info *bfd_arch_info;
2057 /* Check that BFD recognizes this architecture */
2058 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2059 if (bfd_arch_info == NULL)
2061 internal_error (__FILE__, __LINE__,
2062 "gdbarch: Attempt to register unknown architecture (%d)",
2065 /* Check that we haven't seen this architecture before */
2066 for (curr = &gdbarch_registry;
2068 curr = &(*curr)->next)
2070 if (bfd_architecture == (*curr)->bfd_architecture)
2071 internal_error (__FILE__, __LINE__,
2072 "gdbarch: Duplicate registraration of architecture (%s)",
2073 bfd_arch_info->printable_name);
2077 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2078 bfd_arch_info->printable_name,
2081 (*curr) = XMALLOC (struct gdbarch_registration);
2082 (*curr)->bfd_architecture = bfd_architecture;
2083 (*curr)->init = init;
2084 (*curr)->dump_tdep = dump_tdep;
2085 (*curr)->arches = NULL;
2086 (*curr)->next = NULL;
2090 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2091 gdbarch_init_ftype *init)
2093 gdbarch_register (bfd_architecture, init, NULL);
2097 /* Look for an architecture using gdbarch_info. Base search on only
2098 BFD_ARCH_INFO and BYTE_ORDER. */
2100 struct gdbarch_list *
2101 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2102 const struct gdbarch_info *info)
2104 for (; arches != NULL; arches = arches->next)
2106 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2108 if (info->byte_order != arches->gdbarch->byte_order)
2110 if (info->osabi != arches->gdbarch->osabi)
2118 /* Find an architecture that matches the specified INFO. Create a new
2119 architecture if needed. Return that new architecture. Assumes
2120 that there is no current architecture. */
2122 static struct gdbarch *
2123 find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info)
2125 struct gdbarch *new_gdbarch;
2126 struct gdbarch_registration *rego;
2128 /* The existing architecture has been swapped out - all this code
2129 works from a clean slate. */
2130 gdb_assert (current_gdbarch == NULL);
2132 /* Fill in missing parts of the INFO struct using a number of
2133 sources: "set ..."; INFOabfd supplied; and the existing
2135 gdbarch_info_fill (old_gdbarch, &info);
2137 /* Must have found some sort of architecture. */
2138 gdb_assert (info.bfd_arch_info != NULL);
2142 fprintf_unfiltered (gdb_stdlog,
2143 "find_arch_by_info: info.bfd_arch_info %s\n",
2144 (info.bfd_arch_info != NULL
2145 ? info.bfd_arch_info->printable_name
2147 fprintf_unfiltered (gdb_stdlog,
2148 "find_arch_by_info: info.byte_order %d (%s)\n",
2150 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2151 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2153 fprintf_unfiltered (gdb_stdlog,
2154 "find_arch_by_info: info.osabi %d (%s)\n",
2155 info.osabi, gdbarch_osabi_name (info.osabi));
2156 fprintf_unfiltered (gdb_stdlog,
2157 "find_arch_by_info: info.abfd 0x%lx\n",
2159 fprintf_unfiltered (gdb_stdlog,
2160 "find_arch_by_info: info.tdep_info 0x%lx\n",
2161 (long) info.tdep_info);
2164 /* Find the tdep code that knows about this architecture. */
2165 for (rego = gdbarch_registry;
2168 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2173 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2174 "No matching architecture\n");
2178 /* Ask the tdep code for an architecture that matches "info". */
2179 new_gdbarch = rego->init (info, rego->arches);
2181 /* Did the tdep code like it? No. Reject the change and revert to
2182 the old architecture. */
2183 if (new_gdbarch == NULL)
2186 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2187 "Target rejected architecture\n");
2191 /* Is this a pre-existing architecture (as determined by already
2192 being initialized)? Move it to the front of the architecture
2193 list (keeping the list sorted Most Recently Used). */
2194 if (new_gdbarch->initialized_p)
2196 struct gdbarch_list **list;
2197 struct gdbarch_list *this;
2199 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2200 "Previous architecture 0x%08lx (%s) selected\n",
2202 new_gdbarch->bfd_arch_info->printable_name);
2203 /* Find the existing arch in the list. */
2204 for (list = ®o->arches;
2205 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2206 list = &(*list)->next);
2207 /* It had better be in the list of architectures. */
2208 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2211 (*list) = this->next;
2212 /* Insert THIS at the front. */
2213 this->next = rego->arches;
2214 rego->arches = this;
2219 /* It's a new architecture. */
2221 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2222 "New architecture 0x%08lx (%s) selected\n",
2224 new_gdbarch->bfd_arch_info->printable_name);
2226 /* Insert the new architecture into the front of the architecture
2227 list (keep the list sorted Most Recently Used). */
2229 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2230 this->next = rego->arches;
2231 this->gdbarch = new_gdbarch;
2232 rego->arches = this;
2235 /* Check that the newly installed architecture is valid. Plug in
2236 any post init values. */
2237 new_gdbarch->dump_tdep = rego->dump_tdep;
2238 verify_gdbarch (new_gdbarch);
2239 new_gdbarch->initialized_p = 1;
2241 /* Initialize any per-architecture swap areas. This phase requires
2242 a valid global CURRENT_GDBARCH. Set it momentarially, and then
2243 swap the entire architecture out. */
2244 current_gdbarch = new_gdbarch;
2245 current_gdbarch_swap_init_hack ();
2246 current_gdbarch_swap_out_hack ();
2249 gdbarch_dump (new_gdbarch, gdb_stdlog);
2255 gdbarch_find_by_info (struct gdbarch_info info)
2257 /* Save the previously selected architecture, setting the global to
2258 NULL. This stops things like gdbarch->init() trying to use the
2259 previous architecture's configuration. The previous architecture
2260 may not even be of the same architecture family. The most recent
2261 architecture of the same family is found at the head of the
2262 rego->arches list. */
2263 struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2265 /* Find the specified architecture. */
2266 struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info);
2268 /* Restore the existing architecture. */
2269 gdb_assert (current_gdbarch == NULL);
2270 current_gdbarch_swap_in_hack (old_gdbarch);
2275 /* Make the specified architecture current, swapping the existing one
2279 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2281 gdb_assert (new_gdbarch != NULL);
2282 gdb_assert (current_gdbarch != NULL);
2283 gdb_assert (new_gdbarch->initialized_p);
2284 current_gdbarch_swap_out_hack ();
2285 current_gdbarch_swap_in_hack (new_gdbarch);
2286 architecture_changed_event ();
2289 extern void _initialize_gdbarch (void);
2292 _initialize_gdbarch (void)
2294 struct cmd_list_element *c;
2296 add_show_from_set (add_set_cmd ("arch",
2299 (char *)&gdbarch_debug,
2300 "Set architecture debugging.\\n\\
2301 When non-zero, architecture debugging is enabled.", &setdebuglist),
2303 c = add_set_cmd ("archdebug",
2306 (char *)&gdbarch_debug,
2307 "Set architecture debugging.\\n\\
2308 When non-zero, architecture debugging is enabled.", &setlist);
2310 deprecate_cmd (c, "set debug arch");
2311 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch");
2317 #../move-if-change new-gdbarch.c gdbarch.c
2318 compare_new gdbarch.c