3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
6 # Free Software Foundation, Inc.
8 # This file is part of GDB.
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 2 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program; if not, write to the Free Software
22 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 # Boston, MA 02110-1301, USA.
25 # Make certain that the script is not 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} ${file}" 1>&2
46 # Format of the input table
47 read="class macro returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
55 if test "${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 ${read} <<EOF
78 if test -n "${garbage_at_eol}"
80 echo "Garbage at end-of-line in ${line}" 1>&2
85 # .... and then going back through each field and strip out those
86 # that ended up with just that space character.
89 if eval test \"\
${${r}}\" = \"\
\"
95 FUNCTION
=`echo ${function} | tr '[a-z]' '[A-Z]'`
96 if test "x${macro}" = "x="
98 # Provide a UCASE version of function (for when there isn't MACRO)
100 elif test "${macro}" = "${FUNCTION}"
102 echo "${function}: Specify = for macro field" 1>&2
107 # Check that macro definition wasn't supplied for multi-arch
110 if test "${macro}" != ""
112 echo "Error: Function ${function} multi-arch yet macro ${macro} supplied" 1>&2
119 m
) staticdefault
="${predefault}" ;;
120 M
) staticdefault
="0" ;;
121 * ) test "${staticdefault}" || staticdefault
=0 ;;
126 case "${invalid_p}" in
128 if test -n "${predefault}"
130 #invalid_p="gdbarch->${function} == ${predefault}"
131 predicate
="gdbarch->${function} != ${predefault}"
132 elif class_is_variable_p
134 predicate
="gdbarch->${function} != 0"
135 elif class_is_function_p
137 predicate
="gdbarch->${function} != NULL"
141 echo "Predicate function ${function} with invalid_p." 1>&2
148 # PREDEFAULT is a valid fallback definition of MEMBER when
149 # multi-arch is not enabled. This ensures that the
150 # default value, when multi-arch is the same as the
151 # default value when not multi-arch. POSTDEFAULT is
152 # always a valid definition of MEMBER as this again
153 # ensures consistency.
155 if [ -n "${postdefault}" ]
157 fallbackdefault
="${postdefault}"
158 elif [ -n "${predefault}" ]
160 fallbackdefault
="${predefault}"
165 #NOT YET: See gdbarch.log for basic verification of
180 fallback_default_p
()
182 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
183 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
186 class_is_variable_p
()
194 class_is_function_p
()
197 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
202 class_is_multiarch_p
()
210 class_is_predicate_p
()
213 *F
* |
*V
* |
*M
* ) true
;;
227 # dump out/verify the doco
237 # F -> function + predicate
238 # hiding a function + predicate to test function validity
241 # V -> variable + predicate
242 # hiding a variable + predicate to test variables validity
244 # hiding something from the ``struct info'' object
245 # m -> multi-arch function
246 # hiding a multi-arch function (parameterised with the architecture)
247 # M -> multi-arch function + predicate
248 # hiding a multi-arch function + predicate to test function validity
252 # The name of the legacy C macro by which this method can be
253 # accessed. If empty, no macro is defined. If "=", a macro
254 # formed from the upper-case function name is used.
258 # For functions, the return type; for variables, the data type
262 # For functions, the member function name; for variables, the
263 # variable name. Member function names are always prefixed with
264 # ``gdbarch_'' for name-space purity.
268 # The formal argument list. It is assumed that the formal
269 # argument list includes the actual name of each list element.
270 # A function with no arguments shall have ``void'' as the
271 # formal argument list.
275 # The list of actual arguments. The arguments specified shall
276 # match the FORMAL list given above. Functions with out
277 # arguments leave this blank.
281 # To help with the GDB startup a static gdbarch object is
282 # created. STATICDEFAULT is the value to insert into that
283 # static gdbarch object. Since this a static object only
284 # simple expressions can be used.
286 # If STATICDEFAULT is empty, zero is used.
290 # An initial value to assign to MEMBER of the freshly
291 # malloc()ed gdbarch object. After initialization, the
292 # freshly malloc()ed object is passed to the target
293 # architecture code for further updates.
295 # If PREDEFAULT is empty, zero is used.
297 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
298 # INVALID_P are specified, PREDEFAULT will be used as the
299 # default for the non- multi-arch target.
301 # A zero PREDEFAULT function will force the fallback to call
304 # Variable declarations can refer to ``gdbarch'' which will
305 # contain the current architecture. Care should be taken.
309 # A value to assign to MEMBER of the new gdbarch object should
310 # the target architecture code fail to change the PREDEFAULT
313 # If POSTDEFAULT is empty, no post update is performed.
315 # If both INVALID_P and POSTDEFAULT are non-empty then
316 # INVALID_P will be used to determine if MEMBER should be
317 # changed to POSTDEFAULT.
319 # If a non-empty POSTDEFAULT and a zero INVALID_P are
320 # specified, POSTDEFAULT will be used as the default for the
321 # non- multi-arch target (regardless of the value of
324 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
326 # Variable declarations can refer to ``current_gdbarch'' which
327 # will contain the current architecture. Care should be
332 # A predicate equation that validates MEMBER. Non-zero is
333 # returned if the code creating the new architecture failed to
334 # initialize MEMBER or the initialized the member is invalid.
335 # If POSTDEFAULT is non-empty then MEMBER will be updated to
336 # that value. If POSTDEFAULT is empty then internal_error()
339 # If INVALID_P is empty, a check that MEMBER is no longer
340 # equal to PREDEFAULT is used.
342 # The expression ``0'' disables the INVALID_P check making
343 # PREDEFAULT a legitimate value.
345 # See also PREDEFAULT and POSTDEFAULT.
349 # An optional expression that convers MEMBER to a value
350 # suitable for formatting using %s.
352 # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d
353 # (anything else) is used.
355 garbage_at_eol
) : ;;
357 # Catches stray fields.
360 echo "Bad field ${field}"
368 # See below (DOCO) for description of each field
370 i:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::TARGET_ARCHITECTURE->printable_name
372 i:TARGET_BYTE_ORDER:int:byte_order:::BFD_ENDIAN_BIG
374 i:TARGET_OSABI:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
376 i::const struct target_desc *:target_desc:::::::paddr_d ((long) current_gdbarch->target_desc)
377 # Number of bits in a char or unsigned char for the target machine.
378 # Just like CHAR_BIT in <limits.h> but describes the target machine.
379 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
381 # Number of bits in a short or unsigned short for the target machine.
382 v:TARGET_SHORT_BIT:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
383 # Number of bits in an int or unsigned int for the target machine.
384 v:TARGET_INT_BIT:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
385 # Number of bits in a long or unsigned long for the target machine.
386 v:TARGET_LONG_BIT:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
387 # Number of bits in a long long or unsigned long long for the target
389 v:TARGET_LONG_LONG_BIT:int:long_long_bit:::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0
391 # The ABI default bit-size and format for "float", "double", and "long
392 # double". These bit/format pairs should eventually be combined into
393 # a single object. For the moment, just initialize them as a pair.
395 v:TARGET_FLOAT_BIT:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
396 v:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format:::::default_float_format (current_gdbarch)::pformat (current_gdbarch->float_format)
397 v:TARGET_DOUBLE_BIT:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
398 v:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format:::::default_double_format (current_gdbarch)::pformat (current_gdbarch->double_format)
399 v:TARGET_LONG_DOUBLE_BIT:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
400 v:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format:::::default_double_format (current_gdbarch)::pformat (current_gdbarch->long_double_format)
402 # For most targets, a pointer on the target and its representation as an
403 # address in GDB have the same size and "look the same". For such a
404 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
405 # / addr_bit will be set from it.
407 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
408 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
410 # ptr_bit is the size of a pointer on the target
411 v:TARGET_PTR_BIT:int:ptr_bit:::8 * sizeof (void*):TARGET_INT_BIT::0
412 # addr_bit is the size of a target address as represented in gdb
413 v:TARGET_ADDR_BIT:int:addr_bit:::8 * sizeof (void*):0:TARGET_PTR_BIT:
414 # Number of bits in a BFD_VMA for the target object file format.
415 v:TARGET_BFD_VMA_BIT:int:bfd_vma_bit:::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
417 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
418 v:TARGET_CHAR_SIGNED:int:char_signed:::1:-1:1
420 F:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
421 f:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid:0:generic_target_write_pc::0
422 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
423 F:TARGET_READ_SP:CORE_ADDR:read_sp:void
424 # Function for getting target's idea of a frame pointer. FIXME: GDB's
425 # whole scheme for dealing with "frames" and "frame pointers" needs a
427 f:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
429 M::void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
430 M::void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
432 v:=:int:num_regs:::0:-1
433 # This macro gives the number of pseudo-registers that live in the
434 # register namespace but do not get fetched or stored on the target.
435 # These pseudo-registers may be aliases for other registers,
436 # combinations of other registers, or they may be computed by GDB.
437 v:=:int:num_pseudo_regs:::0:0::0
439 # GDB's standard (or well known) register numbers. These can map onto
440 # a real register or a pseudo (computed) register or not be defined at
442 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
443 v:=:int:sp_regnum:::-1:-1::0
444 v:=:int:pc_regnum:::-1:-1::0
445 v:=:int:ps_regnum:::-1:-1::0
446 v:=:int:fp0_regnum:::0:-1::0
447 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
448 f:=:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
449 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
450 f:=:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
451 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
452 f:=:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
453 # Convert from an sdb register number to an internal gdb register number.
454 f:=:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
455 f:=:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
456 f:=:const char *:register_name:int regnr:regnr
458 # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE.
459 M::struct type *:register_type:int reg_nr:reg_nr
460 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
461 # register offsets computed using just REGISTER_TYPE, this can be
462 # deleted. See: maint print registers. NOTE: cagney/2002-05-02: This
463 # function with predicate has a valid (callable) initial value. As a
464 # consequence, even when the predicate is false, the corresponding
465 # function works. This simplifies the migration process - old code,
466 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
467 F:=:int:deprecated_register_byte:int reg_nr:reg_nr:generic_register_byte:generic_register_byte
469 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
470 M::struct frame_id:unwind_dummy_id:struct frame_info *info:info
471 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
472 # DEPRECATED_FP_REGNUM.
473 v:=:int:deprecated_fp_regnum:::-1:-1::0
475 # See gdbint.texinfo. See infcall.c.
476 M::CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
477 # DEPRECATED_REGISTER_SIZE can be deleted.
478 v:=:int:deprecated_register_size
479 v:=:int:call_dummy_location::::AT_ENTRY_POINT::0
480 M::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
482 m::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
483 M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
484 M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
485 # MAP a GDB RAW register number onto a simulator register number. See
486 # also include/...-sim.h.
487 f:=:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
488 F:=:int:register_bytes_ok:long nr_bytes:nr_bytes
489 f:=:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
490 f:=:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
491 # setjmp/longjmp support.
492 F:=:int:get_longjmp_target:CORE_ADDR *pc:pc
494 v:=:int:believe_pcc_promotion:::::::
496 f:=:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
497 f:=:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
498 f:=:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
500 f:=:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
501 f:=:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
502 M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
504 # NOTE: kettenis/2005-09-01: Replaced by PUSH_DUMMY_CALL.
505 F:=:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
507 # It has been suggested that this, well actually its predecessor,
508 # should take the type/value of the function to be called and not the
509 # return type. This is left as an exercise for the reader.
511 # NOTE: cagney/2004-06-13: The function stack.c:return_command uses
512 # the predicate with default hack to avoid calling STORE_RETURN_VALUE
513 # (via legacy_return_value), when a small struct is involved.
515 M::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:valtype, regcache, readbuf, writebuf::legacy_return_value
517 # The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
518 # DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
519 # DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
522 f:=:void:extract_return_value:struct type *type, struct regcache *regcache, gdb_byte *valbuf:type, regcache, valbuf::legacy_extract_return_value::0
523 f:=:void:store_return_value:struct type *type, struct regcache *regcache, const gdb_byte *valbuf:type, regcache, valbuf::legacy_store_return_value::0
524 f:=:void:deprecated_extract_return_value:struct type *type, gdb_byte *regbuf, gdb_byte *valbuf:type, regbuf, valbuf
525 f:=:void:deprecated_store_return_value:struct type *type, gdb_byte *valbuf:type, valbuf
526 f:=:int:deprecated_use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::generic_use_struct_convention::0
528 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
529 # ABI suitable for the implementation of a robust extract
530 # struct-convention return-value address method (the sparc saves the
531 # address in the callers frame). All the other cases so far examined,
532 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
533 # erreneous - the code was incorrectly assuming that the return-value
534 # address, stored in a register, was preserved across the entire
537 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
538 # the ABIs that are still to be analyzed - perhaps this should simply
539 # be deleted. The commented out extract_returned_value_address method
540 # is provided as a starting point for the 32-bit SPARC. It, or
541 # something like it, along with changes to both infcmd.c and stack.c
542 # will be needed for that case to work. NB: It is passed the callers
543 # frame since it is only after the callee has returned that this
546 #M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
547 F:=:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
550 f:=:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
551 f:=:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
552 f:=:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
553 M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
554 f:=:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
555 f:=:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
556 v:=:CORE_ADDR:decr_pc_after_break:::0:::0
558 # A function can be addressed by either it's "pointer" (possibly a
559 # descriptor address) or "entry point" (first executable instruction).
560 # The method "convert_from_func_ptr_addr" converting the former to the
561 # latter. DEPRECATED_FUNCTION_START_OFFSET is being used to implement
562 # a simplified subset of that functionality - the function's address
563 # corresponds to the "function pointer" and the function's start
564 # corresponds to the "function entry point" - and hence is redundant.
566 v:=:CORE_ADDR:deprecated_function_start_offset:::0:::0
568 m::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
570 # Fetch the target specific address used to represent a load module.
571 F:=:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
573 v:=:CORE_ADDR:frame_args_skip:::0:::0
574 M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
575 M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
576 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
577 # frame-base. Enable frame-base before frame-unwind.
578 F:=:int:frame_num_args:struct frame_info *frame:frame
580 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
581 # to frame_align and the requirement that methods such as
582 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
584 F:=:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
585 M::CORE_ADDR:frame_align:CORE_ADDR address:address
586 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
587 # stabs_argument_has_addr.
588 F:=:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
589 m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
590 v:=:int:frame_red_zone_size
592 m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
593 # On some machines there are bits in addresses which are not really
594 # part of the address, but are used by the kernel, the hardware, etc.
595 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
596 # we get a "real" address such as one would find in a symbol table.
597 # This is used only for addresses of instructions, and even then I'm
598 # not sure it's used in all contexts. It exists to deal with there
599 # being a few stray bits in the PC which would mislead us, not as some
600 # sort of generic thing to handle alignment or segmentation (it's
601 # possible it should be in TARGET_READ_PC instead).
602 f:=:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
603 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
605 f:=:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
606 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if
607 # the target needs software single step. An ISA method to implement it.
609 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints
610 # using the breakpoint system instead of blatting memory directly (as with rs6000).
612 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can
613 # single step. If not, then implement single step using breakpoints.
614 F:=:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p
615 # Return non-zero if the processor is executing a delay slot and a
616 # further single-step is needed before the instruction finishes.
617 M::int:single_step_through_delay:struct frame_info *frame:frame
618 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
619 # disassembler. Perhaps objdump can handle it?
620 f:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
621 f:=:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc::generic_skip_trampoline_code::0
624 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
625 # evaluates non-zero, this is the address where the debugger will place
626 # a step-resume breakpoint to get us past the dynamic linker.
627 m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
628 # Some systems also have trampoline code for returning from shared libs.
629 f:=:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
631 # A target might have problems with watchpoints as soon as the stack
632 # frame of the current function has been destroyed. This mostly happens
633 # as the first action in a funtion's epilogue. in_function_epilogue_p()
634 # is defined to return a non-zero value if either the given addr is one
635 # instruction after the stack destroying instruction up to the trailing
636 # return instruction or if we can figure out that the stack frame has
637 # already been invalidated regardless of the value of addr. Targets
638 # which don't suffer from that problem could just let this functionality
640 m::int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
641 # Given a vector of command-line arguments, return a newly allocated
642 # string which, when passed to the create_inferior function, will be
643 # parsed (on Unix systems, by the shell) to yield the same vector.
644 # This function should call error() if the argument vector is not
645 # representable for this target or if this target does not support
646 # command-line arguments.
647 # ARGC is the number of elements in the vector.
648 # ARGV is an array of strings, one per argument.
649 m::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
650 f:=:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
651 f:=:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
652 v:=:const char *:name_of_malloc:::"malloc":"malloc"::0:NAME_OF_MALLOC
653 v:=:int:cannot_step_breakpoint:::0:0::0
654 v:=:int:have_nonsteppable_watchpoint:::0:0::0
655 F:=:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
656 M::const char *:address_class_type_flags_to_name:int type_flags:type_flags
657 M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
658 # Is a register in a group
659 m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
660 # Fetch the pointer to the ith function argument.
661 F:=:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
663 # Return the appropriate register set for a core file section with
664 # name SECT_NAME and size SECT_SIZE.
665 M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
672 exec > new-gdbarch.log
673 function_list |
while do_read
676 ${class} ${returntype} ${function} ($formal)
680 eval echo \"\ \ \ \
${r}=\
${${r}}\"
682 if class_is_predicate_p
&& fallback_default_p
684 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
688 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
690 echo "Error: postdefault is useless when invalid_p=0" 1>&2
694 if class_is_multiarch_p
696 if class_is_predicate_p
; then :
697 elif test "x${predefault}" = "x"
699 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
708 compare_new gdbarch.log
714 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
716 /* Dynamic architecture support for GDB, the GNU debugger.
718 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
719 Free Software Foundation, Inc.
721 This file is part of GDB.
723 This program is free software; you can redistribute it and/or modify
724 it under the terms of the GNU General Public License as published by
725 the Free Software Foundation; either version 2 of the License, or
726 (at your option) any later version.
728 This program is distributed in the hope that it will be useful,
729 but WITHOUT ANY WARRANTY; without even the implied warranty of
730 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
731 GNU General Public License for more details.
733 You should have received a copy of the GNU General Public License
734 along with this program; if not, write to the Free Software
735 Foundation, Inc., 51 Franklin Street, Fifth Floor,
736 Boston, MA 02110-1301, USA. */
738 /* This file was created with the aid of \`\`gdbarch.sh''.
740 The Bourne shell script \`\`gdbarch.sh'' creates the files
741 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
742 against the existing \`\`gdbarch.[hc]''. Any differences found
745 If editing this file, please also run gdbarch.sh and merge any
746 changes into that script. Conversely, when making sweeping changes
747 to this file, modifying gdbarch.sh and using its output may prove
768 struct minimal_symbol;
772 struct disassemble_info;
775 struct bp_target_info;
778 extern struct gdbarch *current_gdbarch;
784 printf "/* The following are pre-initialized by GDBARCH. */\n"
785 function_list |
while do_read
790 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
791 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
792 if test -n "${macro}"
794 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
795 printf "#error \"Non multi-arch definition of ${macro}\"\n"
797 printf "#if !defined (${macro})\n"
798 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
807 printf "/* The following are initialized by the target dependent code. */\n"
808 function_list |
while do_read
810 if [ -n "${comment}" ]
812 echo "${comment}" |
sed \
818 if class_is_predicate_p
820 if test -n "${macro}"
823 printf "#if defined (${macro})\n"
824 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
825 printf "#if !defined (${macro}_P)\n"
826 printf "#define ${macro}_P() (1)\n"
831 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
832 if test -n "${macro}"
834 printf "#if !defined (GDB_TM_FILE) && defined (${macro}_P)\n"
835 printf "#error \"Non multi-arch definition of ${macro}\"\n"
837 printf "#if !defined (${macro}_P)\n"
838 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
842 if class_is_variable_p
845 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
846 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
847 if test -n "${macro}"
849 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
850 printf "#error \"Non multi-arch definition of ${macro}\"\n"
852 printf "#if !defined (${macro})\n"
853 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
857 if class_is_function_p
860 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
862 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
863 elif class_is_multiarch_p
865 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
867 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
869 if [ "x${formal}" = "xvoid" ]
871 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
873 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
875 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
876 if test -n "${macro}"
878 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
879 printf "#error \"Non multi-arch definition of ${macro}\"\n"
881 if [ "x${actual}" = "x" ]
883 d
="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
884 elif [ "x${actual}" = "x-" ]
886 d
="#define ${macro} (gdbarch_${function} (current_gdbarch))"
888 d
="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
890 printf "#if !defined (${macro})\n"
891 if [ "x${actual}" = "x" ]
893 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
894 elif [ "x${actual}" = "x-" ]
896 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
898 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
908 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
911 /* Mechanism for co-ordinating the selection of a specific
914 GDB targets (*-tdep.c) can register an interest in a specific
915 architecture. Other GDB components can register a need to maintain
916 per-architecture data.
918 The mechanisms below ensures that there is only a loose connection
919 between the set-architecture command and the various GDB
920 components. Each component can independently register their need
921 to maintain architecture specific data with gdbarch.
925 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
928 The more traditional mega-struct containing architecture specific
929 data for all the various GDB components was also considered. Since
930 GDB is built from a variable number of (fairly independent)
931 components it was determined that the global aproach was not
935 /* Register a new architectural family with GDB.
937 Register support for the specified ARCHITECTURE with GDB. When
938 gdbarch determines that the specified architecture has been
939 selected, the corresponding INIT function is called.
943 The INIT function takes two parameters: INFO which contains the
944 information available to gdbarch about the (possibly new)
945 architecture; ARCHES which is a list of the previously created
946 \`\`struct gdbarch'' for this architecture.
948 The INFO parameter is, as far as possible, be pre-initialized with
949 information obtained from INFO.ABFD or the global defaults.
951 The ARCHES parameter is a linked list (sorted most recently used)
952 of all the previously created architures for this architecture
953 family. The (possibly NULL) ARCHES->gdbarch can used to access
954 values from the previously selected architecture for this
955 architecture family. The global \`\`current_gdbarch'' shall not be
958 The INIT function shall return any of: NULL - indicating that it
959 doesn't recognize the selected architecture; an existing \`\`struct
960 gdbarch'' from the ARCHES list - indicating that the new
961 architecture is just a synonym for an earlier architecture (see
962 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
963 - that describes the selected architecture (see gdbarch_alloc()).
965 The DUMP_TDEP function shall print out all target specific values.
966 Care should be taken to ensure that the function works in both the
967 multi-arch and non- multi-arch cases. */
971 struct gdbarch *gdbarch;
972 struct gdbarch_list *next;
977 /* Use default: NULL (ZERO). */
978 const struct bfd_arch_info *bfd_arch_info;
980 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
983 /* Use default: NULL (ZERO). */
986 /* Use default: NULL (ZERO). */
987 struct gdbarch_tdep_info *tdep_info;
989 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
990 enum gdb_osabi osabi;
992 /* Use default: NULL (ZERO). */
993 const struct target_desc *target_desc;
996 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
997 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
999 /* DEPRECATED - use gdbarch_register() */
1000 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1002 extern void gdbarch_register (enum bfd_architecture architecture,
1003 gdbarch_init_ftype *,
1004 gdbarch_dump_tdep_ftype *);
1007 /* Return a freshly allocated, NULL terminated, array of the valid
1008 architecture names. Since architectures are registered during the
1009 _initialize phase this function only returns useful information
1010 once initialization has been completed. */
1012 extern const char **gdbarch_printable_names (void);
1015 /* Helper function. Search the list of ARCHES for a GDBARCH that
1016 matches the information provided by INFO. */
1018 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1021 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1022 basic initialization using values obtained from the INFO and TDEP
1023 parameters. set_gdbarch_*() functions are called to complete the
1024 initialization of the object. */
1026 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1029 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1030 It is assumed that the caller freeds the \`\`struct
1033 extern void gdbarch_free (struct gdbarch *);
1036 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1037 obstack. The memory is freed when the corresponding architecture
1040 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1041 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1042 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1045 /* Helper function. Force an update of the current architecture.
1047 The actual architecture selected is determined by INFO, \`\`(gdb) set
1048 architecture'' et.al., the existing architecture and BFD's default
1049 architecture. INFO should be initialized to zero and then selected
1050 fields should be updated.
1052 Returns non-zero if the update succeeds */
1054 extern int gdbarch_update_p (struct gdbarch_info info);
1057 /* Helper function. Find an architecture matching info.
1059 INFO should be initialized using gdbarch_info_init, relevant fields
1060 set, and then finished using gdbarch_info_fill.
1062 Returns the corresponding architecture, or NULL if no matching
1063 architecture was found. "current_gdbarch" is not updated. */
1065 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1068 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1070 FIXME: kettenis/20031124: Of the functions that follow, only
1071 gdbarch_from_bfd is supposed to survive. The others will
1072 dissappear since in the future GDB will (hopefully) be truly
1073 multi-arch. However, for now we're still stuck with the concept of
1074 a single active architecture. */
1076 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1079 /* Register per-architecture data-pointer.
1081 Reserve space for a per-architecture data-pointer. An identifier
1082 for the reserved data-pointer is returned. That identifer should
1083 be saved in a local static variable.
1085 Memory for the per-architecture data shall be allocated using
1086 gdbarch_obstack_zalloc. That memory will be deleted when the
1087 corresponding architecture object is deleted.
1089 When a previously created architecture is re-selected, the
1090 per-architecture data-pointer for that previous architecture is
1091 restored. INIT() is not re-called.
1093 Multiple registrarants for any architecture are allowed (and
1094 strongly encouraged). */
1096 struct gdbarch_data;
1098 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1099 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1100 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1101 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1102 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1103 struct gdbarch_data *data,
1106 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1110 /* Register per-architecture memory region.
1112 Provide a memory-region swap mechanism. Per-architecture memory
1113 region are created. These memory regions are swapped whenever the
1114 architecture is changed. For a new architecture, the memory region
1115 is initialized with zero (0) and the INIT function is called.
1117 Memory regions are swapped / initialized in the order that they are
1118 registered. NULL DATA and/or INIT values can be specified.
1120 New code should use gdbarch_data_register_*(). */
1122 typedef void (gdbarch_swap_ftype) (void);
1123 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1124 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1128 /* Set the dynamic target-system-dependent parameters (architecture,
1129 byte-order, ...) using information found in the BFD */
1131 extern void set_gdbarch_from_file (bfd *);
1134 /* Initialize the current architecture to the "first" one we find on
1137 extern void initialize_current_architecture (void);
1139 /* gdbarch trace variable */
1140 extern int gdbarch_debug;
1142 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1147 #../move-if-change new-gdbarch.h gdbarch.h
1148 compare_new gdbarch.h
1155 exec > new-gdbarch.c
1160 #include "arch-utils.h"
1163 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1166 #include "floatformat.h"
1168 #include "gdb_assert.h"
1169 #include "gdb_string.h"
1170 #include "gdb-events.h"
1171 #include "reggroups.h"
1173 #include "gdb_obstack.h"
1175 /* Static function declarations */
1177 static void alloc_gdbarch_data (struct gdbarch *);
1179 /* Non-zero if we want to trace architecture code. */
1181 #ifndef GDBARCH_DEBUG
1182 #define GDBARCH_DEBUG 0
1184 int gdbarch_debug = GDBARCH_DEBUG;
1186 show_gdbarch_debug (struct ui_file *file, int from_tty,
1187 struct cmd_list_element *c, const char *value)
1189 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1193 pformat (const struct floatformat *format)
1198 return format->name;
1203 # gdbarch open the gdbarch object
1205 printf "/* Maintain the struct gdbarch object */\n"
1207 printf "struct gdbarch\n"
1209 printf " /* Has this architecture been fully initialized? */\n"
1210 printf " int initialized_p;\n"
1212 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1213 printf " struct obstack *obstack;\n"
1215 printf " /* basic architectural information */\n"
1216 function_list |
while do_read
1220 printf " ${returntype} ${function};\n"
1224 printf " /* target specific vector. */\n"
1225 printf " struct gdbarch_tdep *tdep;\n"
1226 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1228 printf " /* per-architecture data-pointers */\n"
1229 printf " unsigned nr_data;\n"
1230 printf " void **data;\n"
1232 printf " /* per-architecture swap-regions */\n"
1233 printf " struct gdbarch_swap *swap;\n"
1236 /* Multi-arch values.
1238 When extending this structure you must:
1240 Add the field below.
1242 Declare set/get functions and define the corresponding
1245 gdbarch_alloc(): If zero/NULL is not a suitable default,
1246 initialize the new field.
1248 verify_gdbarch(): Confirm that the target updated the field
1251 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1254 \`\`startup_gdbarch()'': Append an initial value to the static
1255 variable (base values on the host's c-type system).
1257 get_gdbarch(): Implement the set/get functions (probably using
1258 the macro's as shortcuts).
1263 function_list |
while do_read
1265 if class_is_variable_p
1267 printf " ${returntype} ${function};\n"
1268 elif class_is_function_p
1270 printf " gdbarch_${function}_ftype *${function};\n"
1275 # A pre-initialized vector
1279 /* The default architecture uses host values (for want of a better
1283 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1285 printf "struct gdbarch startup_gdbarch =\n"
1287 printf " 1, /* Always initialized. */\n"
1288 printf " NULL, /* The obstack. */\n"
1289 printf " /* basic architecture information */\n"
1290 function_list |
while do_read
1294 printf " ${staticdefault}, /* ${function} */\n"
1298 /* target specific vector and its dump routine */
1300 /*per-architecture data-pointers and swap regions */
1302 /* Multi-arch values */
1304 function_list |
while do_read
1306 if class_is_function_p || class_is_variable_p
1308 printf " ${staticdefault}, /* ${function} */\n"
1312 /* startup_gdbarch() */
1315 struct gdbarch *current_gdbarch = &startup_gdbarch;
1318 # Create a new gdbarch struct
1321 /* Create a new \`\`struct gdbarch'' based on information provided by
1322 \`\`struct gdbarch_info''. */
1327 gdbarch_alloc (const struct gdbarch_info *info,
1328 struct gdbarch_tdep *tdep)
1330 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1331 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1332 the current local architecture and not the previous global
1333 architecture. This ensures that the new architectures initial
1334 values are not influenced by the previous architecture. Once
1335 everything is parameterised with gdbarch, this will go away. */
1336 struct gdbarch *current_gdbarch;
1338 /* Create an obstack for allocating all the per-architecture memory,
1339 then use that to allocate the architecture vector. */
1340 struct obstack *obstack = XMALLOC (struct obstack);
1341 obstack_init (obstack);
1342 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1343 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1344 current_gdbarch->obstack = obstack;
1346 alloc_gdbarch_data (current_gdbarch);
1348 current_gdbarch->tdep = tdep;
1351 function_list |
while do_read
1355 printf " current_gdbarch->${function} = info->${function};\n"
1359 printf " /* Force the explicit initialization of these. */\n"
1360 function_list |
while do_read
1362 if class_is_function_p || class_is_variable_p
1364 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1366 printf " current_gdbarch->${function} = ${predefault};\n"
1371 /* gdbarch_alloc() */
1373 return current_gdbarch;
1377 # Free a gdbarch struct.
1381 /* Allocate extra space using the per-architecture obstack. */
1384 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1386 void *data = obstack_alloc (arch->obstack, size);
1387 memset (data, 0, size);
1392 /* Free a gdbarch struct. This should never happen in normal
1393 operation --- once you've created a gdbarch, you keep it around.
1394 However, if an architecture's init function encounters an error
1395 building the structure, it may need to clean up a partially
1396 constructed gdbarch. */
1399 gdbarch_free (struct gdbarch *arch)
1401 struct obstack *obstack;
1402 gdb_assert (arch != NULL);
1403 gdb_assert (!arch->initialized_p);
1404 obstack = arch->obstack;
1405 obstack_free (obstack, 0); /* Includes the ARCH. */
1410 # verify a new architecture
1414 /* Ensure that all values in a GDBARCH are reasonable. */
1416 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1417 just happens to match the global variable \`\`current_gdbarch''. That
1418 way macros refering to that variable get the local and not the global
1419 version - ulgh. Once everything is parameterised with gdbarch, this
1423 verify_gdbarch (struct gdbarch *current_gdbarch)
1425 struct ui_file *log;
1426 struct cleanup *cleanups;
1429 log = mem_fileopen ();
1430 cleanups = make_cleanup_ui_file_delete (log);
1432 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1433 fprintf_unfiltered (log, "\n\tbyte-order");
1434 if (current_gdbarch->bfd_arch_info == NULL)
1435 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1436 /* Check those that need to be defined for the given multi-arch level. */
1438 function_list |
while do_read
1440 if class_is_function_p || class_is_variable_p
1442 if [ "x${invalid_p}" = "x0" ]
1444 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1445 elif class_is_predicate_p
1447 printf " /* Skip verify of ${function}, has predicate */\n"
1448 # FIXME: See do_read for potential simplification
1449 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1451 printf " if (${invalid_p})\n"
1452 printf " current_gdbarch->${function} = ${postdefault};\n"
1453 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1455 printf " if (current_gdbarch->${function} == ${predefault})\n"
1456 printf " current_gdbarch->${function} = ${postdefault};\n"
1457 elif [ -n "${postdefault}" ]
1459 printf " if (current_gdbarch->${function} == 0)\n"
1460 printf " current_gdbarch->${function} = ${postdefault};\n"
1461 elif [ -n "${invalid_p}" ]
1463 printf " if (${invalid_p})\n"
1464 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1465 elif [ -n "${predefault}" ]
1467 printf " if (current_gdbarch->${function} == ${predefault})\n"
1468 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1473 buf = ui_file_xstrdup (log, &dummy);
1474 make_cleanup (xfree, buf);
1475 if (strlen (buf) > 0)
1476 internal_error (__FILE__, __LINE__,
1477 _("verify_gdbarch: the following are invalid ...%s"),
1479 do_cleanups (cleanups);
1483 # dump the structure
1487 /* Print out the details of the current architecture. */
1489 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1490 just happens to match the global variable \`\`current_gdbarch''. That
1491 way macros refering to that variable get the local and not the global
1492 version - ulgh. Once everything is parameterised with gdbarch, this
1496 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1498 const char *gdb_xm_file = "<not-defined>";
1499 const char *gdb_nm_file = "<not-defined>";
1500 const char *gdb_tm_file = "<not-defined>";
1501 #if defined (GDB_XM_FILE)
1502 gdb_xm_file = GDB_XM_FILE;
1504 fprintf_unfiltered (file,
1505 "gdbarch_dump: GDB_XM_FILE = %s\\n",
1507 #if defined (GDB_NM_FILE)
1508 gdb_nm_file = GDB_NM_FILE;
1510 fprintf_unfiltered (file,
1511 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1513 #if defined (GDB_TM_FILE)
1514 gdb_tm_file = GDB_TM_FILE;
1516 fprintf_unfiltered (file,
1517 "gdbarch_dump: GDB_TM_FILE = %s\\n",
1520 function_list |
sort -t: -k 4 |
while do_read
1522 # First the predicate
1523 if class_is_predicate_p
1525 if test -n "${macro}"
1527 printf "#ifdef ${macro}_P\n"
1528 printf " fprintf_unfiltered (file,\n"
1529 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1530 printf " \"${macro}_P()\",\n"
1531 printf " XSTRING (${macro}_P ()));\n"
1534 printf " fprintf_unfiltered (file,\n"
1535 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1536 printf " gdbarch_${function}_p (current_gdbarch));\n"
1538 # Print the macro definition.
1539 if test -n "${macro}"
1541 printf "#ifdef ${macro}\n"
1542 if class_is_function_p
1544 printf " fprintf_unfiltered (file,\n"
1545 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1546 printf " \"${macro}(${actual})\",\n"
1547 printf " XSTRING (${macro} (${actual})));\n"
1549 printf " fprintf_unfiltered (file,\n"
1550 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1551 printf " XSTRING (${macro}));\n"
1555 # Print the corresponding value.
1556 if class_is_function_p
1558 printf " fprintf_unfiltered (file,\n"
1559 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1560 printf " (long) current_gdbarch->${function});\n"
1563 case "${print}:${returntype}" in
1566 print
="paddr_nz (current_gdbarch->${function})"
1570 print
="paddr_d (current_gdbarch->${function})"
1576 printf " fprintf_unfiltered (file,\n"
1577 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1578 printf " ${print});\n"
1582 if (current_gdbarch->dump_tdep != NULL)
1583 current_gdbarch->dump_tdep (current_gdbarch, file);
1591 struct gdbarch_tdep *
1592 gdbarch_tdep (struct gdbarch *gdbarch)
1594 if (gdbarch_debug >= 2)
1595 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1596 return gdbarch->tdep;
1600 function_list |
while do_read
1602 if class_is_predicate_p
1606 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1608 printf " gdb_assert (gdbarch != NULL);\n"
1609 printf " return ${predicate};\n"
1612 if class_is_function_p
1615 printf "${returntype}\n"
1616 if [ "x${formal}" = "xvoid" ]
1618 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1620 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1623 printf " gdb_assert (gdbarch != NULL);\n"
1624 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1625 if class_is_predicate_p
&& test -n "${predefault}"
1627 # Allow a call to a function with a predicate.
1628 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1630 printf " if (gdbarch_debug >= 2)\n"
1631 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1632 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1634 if class_is_multiarch_p
1641 if class_is_multiarch_p
1643 params
="gdbarch, ${actual}"
1648 if [ "x${returntype}" = "xvoid" ]
1650 printf " gdbarch->${function} (${params});\n"
1652 printf " return gdbarch->${function} (${params});\n"
1657 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1658 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1660 printf " gdbarch->${function} = ${function};\n"
1662 elif class_is_variable_p
1665 printf "${returntype}\n"
1666 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1668 printf " gdb_assert (gdbarch != NULL);\n"
1669 if [ "x${invalid_p}" = "x0" ]
1671 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1672 elif [ -n "${invalid_p}" ]
1674 printf " /* Check variable is valid. */\n"
1675 printf " gdb_assert (!(${invalid_p}));\n"
1676 elif [ -n "${predefault}" ]
1678 printf " /* Check variable changed from pre-default. */\n"
1679 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1681 printf " if (gdbarch_debug >= 2)\n"
1682 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1683 printf " return gdbarch->${function};\n"
1687 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1688 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1690 printf " gdbarch->${function} = ${function};\n"
1692 elif class_is_info_p
1695 printf "${returntype}\n"
1696 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1698 printf " gdb_assert (gdbarch != NULL);\n"
1699 printf " if (gdbarch_debug >= 2)\n"
1700 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1701 printf " return gdbarch->${function};\n"
1706 # All the trailing guff
1710 /* Keep a registry of per-architecture data-pointers required by GDB
1717 gdbarch_data_pre_init_ftype *pre_init;
1718 gdbarch_data_post_init_ftype *post_init;
1721 struct gdbarch_data_registration
1723 struct gdbarch_data *data;
1724 struct gdbarch_data_registration *next;
1727 struct gdbarch_data_registry
1730 struct gdbarch_data_registration *registrations;
1733 struct gdbarch_data_registry gdbarch_data_registry =
1738 static struct gdbarch_data *
1739 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1740 gdbarch_data_post_init_ftype *post_init)
1742 struct gdbarch_data_registration **curr;
1743 /* Append the new registraration. */
1744 for (curr = &gdbarch_data_registry.registrations;
1746 curr = &(*curr)->next);
1747 (*curr) = XMALLOC (struct gdbarch_data_registration);
1748 (*curr)->next = NULL;
1749 (*curr)->data = XMALLOC (struct gdbarch_data);
1750 (*curr)->data->index = gdbarch_data_registry.nr++;
1751 (*curr)->data->pre_init = pre_init;
1752 (*curr)->data->post_init = post_init;
1753 (*curr)->data->init_p = 1;
1754 return (*curr)->data;
1757 struct gdbarch_data *
1758 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1760 return gdbarch_data_register (pre_init, NULL);
1763 struct gdbarch_data *
1764 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1766 return gdbarch_data_register (NULL, post_init);
1769 /* Create/delete the gdbarch data vector. */
1772 alloc_gdbarch_data (struct gdbarch *gdbarch)
1774 gdb_assert (gdbarch->data == NULL);
1775 gdbarch->nr_data = gdbarch_data_registry.nr;
1776 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1779 /* Initialize the current value of the specified per-architecture
1783 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1784 struct gdbarch_data *data,
1787 gdb_assert (data->index < gdbarch->nr_data);
1788 gdb_assert (gdbarch->data[data->index] == NULL);
1789 gdb_assert (data->pre_init == NULL);
1790 gdbarch->data[data->index] = pointer;
1793 /* Return the current value of the specified per-architecture
1797 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1799 gdb_assert (data->index < gdbarch->nr_data);
1800 if (gdbarch->data[data->index] == NULL)
1802 /* The data-pointer isn't initialized, call init() to get a
1804 if (data->pre_init != NULL)
1805 /* Mid architecture creation: pass just the obstack, and not
1806 the entire architecture, as that way it isn't possible for
1807 pre-init code to refer to undefined architecture
1809 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1810 else if (gdbarch->initialized_p
1811 && data->post_init != NULL)
1812 /* Post architecture creation: pass the entire architecture
1813 (as all fields are valid), but be careful to also detect
1814 recursive references. */
1816 gdb_assert (data->init_p);
1818 gdbarch->data[data->index] = data->post_init (gdbarch);
1822 /* The architecture initialization hasn't completed - punt -
1823 hope that the caller knows what they are doing. Once
1824 deprecated_set_gdbarch_data has been initialized, this can be
1825 changed to an internal error. */
1827 gdb_assert (gdbarch->data[data->index] != NULL);
1829 return gdbarch->data[data->index];
1834 /* Keep a registry of swapped data required by GDB modules. */
1839 struct gdbarch_swap_registration *source;
1840 struct gdbarch_swap *next;
1843 struct gdbarch_swap_registration
1846 unsigned long sizeof_data;
1847 gdbarch_swap_ftype *init;
1848 struct gdbarch_swap_registration *next;
1851 struct gdbarch_swap_registry
1854 struct gdbarch_swap_registration *registrations;
1857 struct gdbarch_swap_registry gdbarch_swap_registry =
1863 deprecated_register_gdbarch_swap (void *data,
1864 unsigned long sizeof_data,
1865 gdbarch_swap_ftype *init)
1867 struct gdbarch_swap_registration **rego;
1868 for (rego = &gdbarch_swap_registry.registrations;
1870 rego = &(*rego)->next);
1871 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1872 (*rego)->next = NULL;
1873 (*rego)->init = init;
1874 (*rego)->data = data;
1875 (*rego)->sizeof_data = sizeof_data;
1879 current_gdbarch_swap_init_hack (void)
1881 struct gdbarch_swap_registration *rego;
1882 struct gdbarch_swap **curr = ¤t_gdbarch->swap;
1883 for (rego = gdbarch_swap_registry.registrations;
1887 if (rego->data != NULL)
1889 (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1890 struct gdbarch_swap);
1891 (*curr)->source = rego;
1892 (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1894 (*curr)->next = NULL;
1895 curr = &(*curr)->next;
1897 if (rego->init != NULL)
1902 static struct gdbarch *
1903 current_gdbarch_swap_out_hack (void)
1905 struct gdbarch *old_gdbarch = current_gdbarch;
1906 struct gdbarch_swap *curr;
1908 gdb_assert (old_gdbarch != NULL);
1909 for (curr = old_gdbarch->swap;
1913 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1914 memset (curr->source->data, 0, curr->source->sizeof_data);
1916 current_gdbarch = NULL;
1921 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1923 struct gdbarch_swap *curr;
1925 gdb_assert (current_gdbarch == NULL);
1926 for (curr = new_gdbarch->swap;
1929 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1930 current_gdbarch = new_gdbarch;
1934 /* Keep a registry of the architectures known by GDB. */
1936 struct gdbarch_registration
1938 enum bfd_architecture bfd_architecture;
1939 gdbarch_init_ftype *init;
1940 gdbarch_dump_tdep_ftype *dump_tdep;
1941 struct gdbarch_list *arches;
1942 struct gdbarch_registration *next;
1945 static struct gdbarch_registration *gdbarch_registry = NULL;
1948 append_name (const char ***buf, int *nr, const char *name)
1950 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1956 gdbarch_printable_names (void)
1958 /* Accumulate a list of names based on the registed list of
1960 enum bfd_architecture a;
1962 const char **arches = NULL;
1963 struct gdbarch_registration *rego;
1964 for (rego = gdbarch_registry;
1968 const struct bfd_arch_info *ap;
1969 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1971 internal_error (__FILE__, __LINE__,
1972 _("gdbarch_architecture_names: multi-arch unknown"));
1975 append_name (&arches, &nr_arches, ap->printable_name);
1980 append_name (&arches, &nr_arches, NULL);
1986 gdbarch_register (enum bfd_architecture bfd_architecture,
1987 gdbarch_init_ftype *init,
1988 gdbarch_dump_tdep_ftype *dump_tdep)
1990 struct gdbarch_registration **curr;
1991 const struct bfd_arch_info *bfd_arch_info;
1992 /* Check that BFD recognizes this architecture */
1993 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1994 if (bfd_arch_info == NULL)
1996 internal_error (__FILE__, __LINE__,
1997 _("gdbarch: Attempt to register unknown architecture (%d)"),
2000 /* Check that we haven't seen this architecture before */
2001 for (curr = &gdbarch_registry;
2003 curr = &(*curr)->next)
2005 if (bfd_architecture == (*curr)->bfd_architecture)
2006 internal_error (__FILE__, __LINE__,
2007 _("gdbarch: Duplicate registraration of architecture (%s)"),
2008 bfd_arch_info->printable_name);
2012 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2013 bfd_arch_info->printable_name,
2016 (*curr) = XMALLOC (struct gdbarch_registration);
2017 (*curr)->bfd_architecture = bfd_architecture;
2018 (*curr)->init = init;
2019 (*curr)->dump_tdep = dump_tdep;
2020 (*curr)->arches = NULL;
2021 (*curr)->next = NULL;
2025 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2026 gdbarch_init_ftype *init)
2028 gdbarch_register (bfd_architecture, init, NULL);
2032 /* Look for an architecture using gdbarch_info. */
2034 struct gdbarch_list *
2035 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2036 const struct gdbarch_info *info)
2038 for (; arches != NULL; arches = arches->next)
2040 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2042 if (info->byte_order != arches->gdbarch->byte_order)
2044 if (info->osabi != arches->gdbarch->osabi)
2046 if (info->target_desc != arches->gdbarch->target_desc)
2054 /* Find an architecture that matches the specified INFO. Create a new
2055 architecture if needed. Return that new architecture. Assumes
2056 that there is no current architecture. */
2058 static struct gdbarch *
2059 find_arch_by_info (struct gdbarch_info info)
2061 struct gdbarch *new_gdbarch;
2062 struct gdbarch_registration *rego;
2064 /* The existing architecture has been swapped out - all this code
2065 works from a clean slate. */
2066 gdb_assert (current_gdbarch == NULL);
2068 /* Fill in missing parts of the INFO struct using a number of
2069 sources: "set ..."; INFOabfd supplied; and the global
2071 gdbarch_info_fill (&info);
2073 /* Must have found some sort of architecture. */
2074 gdb_assert (info.bfd_arch_info != NULL);
2078 fprintf_unfiltered (gdb_stdlog,
2079 "find_arch_by_info: info.bfd_arch_info %s\n",
2080 (info.bfd_arch_info != NULL
2081 ? info.bfd_arch_info->printable_name
2083 fprintf_unfiltered (gdb_stdlog,
2084 "find_arch_by_info: info.byte_order %d (%s)\n",
2086 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2087 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2089 fprintf_unfiltered (gdb_stdlog,
2090 "find_arch_by_info: info.osabi %d (%s)\n",
2091 info.osabi, gdbarch_osabi_name (info.osabi));
2092 fprintf_unfiltered (gdb_stdlog,
2093 "find_arch_by_info: info.abfd 0x%lx\n",
2095 fprintf_unfiltered (gdb_stdlog,
2096 "find_arch_by_info: info.tdep_info 0x%lx\n",
2097 (long) info.tdep_info);
2100 /* Find the tdep code that knows about this architecture. */
2101 for (rego = gdbarch_registry;
2104 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2109 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2110 "No matching architecture\n");
2114 /* Ask the tdep code for an architecture that matches "info". */
2115 new_gdbarch = rego->init (info, rego->arches);
2117 /* Did the tdep code like it? No. Reject the change and revert to
2118 the old architecture. */
2119 if (new_gdbarch == NULL)
2122 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2123 "Target rejected architecture\n");
2127 /* Is this a pre-existing architecture (as determined by already
2128 being initialized)? Move it to the front of the architecture
2129 list (keeping the list sorted Most Recently Used). */
2130 if (new_gdbarch->initialized_p)
2132 struct gdbarch_list **list;
2133 struct gdbarch_list *this;
2135 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2136 "Previous architecture 0x%08lx (%s) selected\n",
2138 new_gdbarch->bfd_arch_info->printable_name);
2139 /* Find the existing arch in the list. */
2140 for (list = ®o->arches;
2141 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2142 list = &(*list)->next);
2143 /* It had better be in the list of architectures. */
2144 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2147 (*list) = this->next;
2148 /* Insert THIS at the front. */
2149 this->next = rego->arches;
2150 rego->arches = this;
2155 /* It's a new architecture. */
2157 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2158 "New architecture 0x%08lx (%s) selected\n",
2160 new_gdbarch->bfd_arch_info->printable_name);
2162 /* Insert the new architecture into the front of the architecture
2163 list (keep the list sorted Most Recently Used). */
2165 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2166 this->next = rego->arches;
2167 this->gdbarch = new_gdbarch;
2168 rego->arches = this;
2171 /* Check that the newly installed architecture is valid. Plug in
2172 any post init values. */
2173 new_gdbarch->dump_tdep = rego->dump_tdep;
2174 verify_gdbarch (new_gdbarch);
2175 new_gdbarch->initialized_p = 1;
2177 /* Initialize any per-architecture swap areas. This phase requires
2178 a valid global CURRENT_GDBARCH. Set it momentarially, and then
2179 swap the entire architecture out. */
2180 current_gdbarch = new_gdbarch;
2181 current_gdbarch_swap_init_hack ();
2182 current_gdbarch_swap_out_hack ();
2185 gdbarch_dump (new_gdbarch, gdb_stdlog);
2191 gdbarch_find_by_info (struct gdbarch_info info)
2193 /* Save the previously selected architecture, setting the global to
2194 NULL. This stops things like gdbarch->init() trying to use the
2195 previous architecture's configuration. The previous architecture
2196 may not even be of the same architecture family. The most recent
2197 architecture of the same family is found at the head of the
2198 rego->arches list. */
2199 struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2201 /* Find the specified architecture. */
2202 struct gdbarch *new_gdbarch = find_arch_by_info (info);
2204 /* Restore the existing architecture. */
2205 gdb_assert (current_gdbarch == NULL);
2206 current_gdbarch_swap_in_hack (old_gdbarch);
2211 /* Make the specified architecture current, swapping the existing one
2215 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2217 gdb_assert (new_gdbarch != NULL);
2218 gdb_assert (current_gdbarch != NULL);
2219 gdb_assert (new_gdbarch->initialized_p);
2220 current_gdbarch_swap_out_hack ();
2221 current_gdbarch_swap_in_hack (new_gdbarch);
2222 architecture_changed_event ();
2223 flush_cached_frames ();
2226 extern void _initialize_gdbarch (void);
2229 _initialize_gdbarch (void)
2231 struct cmd_list_element *c;
2233 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2234 Set architecture debugging."), _("\\
2235 Show architecture debugging."), _("\\
2236 When non-zero, architecture debugging is enabled."),
2239 &setdebuglist, &showdebuglist);
2245 #../move-if-change new-gdbarch.c gdbarch.c
2246 compare_new gdbarch.c