3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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.
394 # Each format describes both the big and little endian layouts (if
397 v:TARGET_FLOAT_BIT:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
398 v:TARGET_FLOAT_FORMAT:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (current_gdbarch->float_format)
399 v:TARGET_DOUBLE_BIT:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
400 v:TARGET_DOUBLE_FORMAT:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (current_gdbarch->double_format)
401 v:TARGET_LONG_DOUBLE_BIT:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
402 v:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (current_gdbarch->long_double_format)
404 # For most targets, a pointer on the target and its representation as an
405 # address in GDB have the same size and "look the same". For such a
406 # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT
407 # / addr_bit will be set from it.
409 # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably
410 # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well.
412 # ptr_bit is the size of a pointer on the target
413 v:TARGET_PTR_BIT:int:ptr_bit:::8 * sizeof (void*):TARGET_INT_BIT::0
414 # addr_bit is the size of a target address as represented in gdb
415 v:TARGET_ADDR_BIT:int:addr_bit:::8 * sizeof (void*):0:TARGET_PTR_BIT:
416 # Number of bits in a BFD_VMA for the target object file format.
417 v:TARGET_BFD_VMA_BIT:int:bfd_vma_bit:::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0
419 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
420 v:TARGET_CHAR_SIGNED:int:char_signed:::1:-1:1
422 F:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid
423 f:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid:0:generic_target_write_pc::0
424 # UNWIND_SP is a direct replacement for TARGET_READ_SP.
425 F:TARGET_READ_SP:CORE_ADDR:read_sp:void
426 # Function for getting target's idea of a frame pointer. FIXME: GDB's
427 # whole scheme for dealing with "frames" and "frame pointers" needs a
429 f:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
431 M::void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
432 M::void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
434 v:=:int:num_regs:::0:-1
435 # This macro gives the number of pseudo-registers that live in the
436 # register namespace but do not get fetched or stored on the target.
437 # These pseudo-registers may be aliases for other registers,
438 # combinations of other registers, or they may be computed by GDB.
439 v:=:int:num_pseudo_regs:::0:0::0
441 # GDB's standard (or well known) register numbers. These can map onto
442 # a real register or a pseudo (computed) register or not be defined at
444 # SP_REGNUM will hopefully be replaced by UNWIND_SP.
445 v:=:int:sp_regnum:::-1:-1::0
446 v:=:int:pc_regnum:::-1:-1::0
447 v:=:int:ps_regnum:::-1:-1::0
448 v:=:int:fp0_regnum:::0:-1::0
449 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
450 f:=:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
451 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
452 f:=:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
453 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
454 f:=:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
455 # Convert from an sdb register number to an internal gdb register number.
456 f:=:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
457 f:=:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
458 f:=:const char *:register_name:int regnr:regnr
460 # Return the type of a register specified by the architecture. Only
461 # the register cache should call this function directly; others should
462 # use "register_type".
463 M::struct type *:register_type:int reg_nr:reg_nr
464 # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the
465 # register offsets computed using just REGISTER_TYPE, this can be
466 # deleted. See: maint print registers. NOTE: cagney/2002-05-02: This
467 # function with predicate has a valid (callable) initial value. As a
468 # consequence, even when the predicate is false, the corresponding
469 # function works. This simplifies the migration process - old code,
470 # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified.
471 F:=:int:deprecated_register_byte:int reg_nr:reg_nr:generic_register_byte:generic_register_byte
473 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
474 M::struct frame_id:unwind_dummy_id:struct frame_info *info:info
475 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
476 # DEPRECATED_FP_REGNUM.
477 v:=:int:deprecated_fp_regnum:::-1:-1::0
479 # See gdbint.texinfo. See infcall.c.
480 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
481 # DEPRECATED_REGISTER_SIZE can be deleted.
482 v:=:int:deprecated_register_size
483 v:=:int:call_dummy_location::::AT_ENTRY_POINT::0
484 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
486 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
487 M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
488 M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
489 # MAP a GDB RAW register number onto a simulator register number. See
490 # also include/...-sim.h.
491 f:=:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
492 F:=:int:register_bytes_ok:long nr_bytes:nr_bytes
493 f:=:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
494 f:=:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
495 # setjmp/longjmp support.
496 F:=:int:get_longjmp_target:CORE_ADDR *pc:pc
498 v:=:int:believe_pcc_promotion:::::::
500 f:=:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
501 f:=:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
502 f:=:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
503 # Construct a value representing the contents of register REGNUM in
504 # frame FRAME, interpreted as type TYPE. The routine needs to
505 # allocate and return a struct value with all value attributes
506 # (but not the value contents) filled in.
507 f::struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
509 f:=:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
510 f:=:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
511 M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
513 # NOTE: kettenis/2005-09-01: Replaced by PUSH_DUMMY_CALL.
514 F:=:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp
516 # It has been suggested that this, well actually its predecessor,
517 # should take the type/value of the function to be called and not the
518 # return type. This is left as an exercise for the reader.
520 # NOTE: cagney/2004-06-13: The function stack.c:return_command uses
521 # the predicate with default hack to avoid calling STORE_RETURN_VALUE
522 # (via legacy_return_value), when a small struct is involved.
524 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
526 # The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
527 # DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
528 # DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
531 f:=:void:extract_return_value:struct type *type, struct regcache *regcache, gdb_byte *valbuf:type, regcache, valbuf:0
532 f:=:void:store_return_value:struct type *type, struct regcache *regcache, const gdb_byte *valbuf:type, regcache, valbuf:0
533 f:=:int:deprecated_use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::generic_use_struct_convention::0
535 # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
536 # ABI suitable for the implementation of a robust extract
537 # struct-convention return-value address method (the sparc saves the
538 # address in the callers frame). All the other cases so far examined,
539 # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
540 # erreneous - the code was incorrectly assuming that the return-value
541 # address, stored in a register, was preserved across the entire
544 # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
545 # the ABIs that are still to be analyzed - perhaps this should simply
546 # be deleted. The commented out extract_returned_value_address method
547 # is provided as a starting point for the 32-bit SPARC. It, or
548 # something like it, along with changes to both infcmd.c and stack.c
549 # will be needed for that case to work. NB: It is passed the callers
550 # frame since it is only after the callee has returned that this
553 #M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame
554 F:=:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache
557 f:=:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
558 f:=:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
559 f:=:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
560 M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
561 f:=:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
562 f:=:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
563 v:=:CORE_ADDR:decr_pc_after_break:::0:::0
565 # A function can be addressed by either it's "pointer" (possibly a
566 # descriptor address) or "entry point" (first executable instruction).
567 # The method "convert_from_func_ptr_addr" converting the former to the
568 # latter. DEPRECATED_FUNCTION_START_OFFSET is being used to implement
569 # a simplified subset of that functionality - the function's address
570 # corresponds to the "function pointer" and the function's start
571 # corresponds to the "function entry point" - and hence is redundant.
573 v:=:CORE_ADDR:deprecated_function_start_offset:::0:::0
575 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
577 # Return the remote protocol register number associated with this
578 # register. Normally the identity mapping.
579 m::int:remote_register_number:int regno:regno::default_remote_register_number::0
581 # Fetch the target specific address used to represent a load module.
582 F:=:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
584 v:=:CORE_ADDR:frame_args_skip:::0:::0
585 M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
586 M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
587 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
588 # frame-base. Enable frame-base before frame-unwind.
589 F:=:int:frame_num_args:struct frame_info *frame:frame
591 # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call
592 # to frame_align and the requirement that methods such as
593 # push_dummy_call and frame_red_zone_size maintain correct stack/frame
595 F:=:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp
596 M::CORE_ADDR:frame_align:CORE_ADDR address:address
597 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
598 # stabs_argument_has_addr.
599 F:=:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
600 m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
601 v:=:int:frame_red_zone_size
603 m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
604 # On some machines there are bits in addresses which are not really
605 # part of the address, but are used by the kernel, the hardware, etc.
606 # for special purposes. ADDR_BITS_REMOVE takes out any such bits so
607 # we get a "real" address such as one would find in a symbol table.
608 # This is used only for addresses of instructions, and even then I'm
609 # not sure it's used in all contexts. It exists to deal with there
610 # being a few stray bits in the PC which would mislead us, not as some
611 # sort of generic thing to handle alignment or segmentation (it's
612 # possible it should be in TARGET_READ_PC instead).
613 f:=:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
614 # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into
616 f:=:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
618 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
619 # indicates if the target needs software single step. An ISA method to
622 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
623 # breakpoints using the breakpoint system instead of blatting memory directly
626 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
627 # target can single step. If not, then implement single step using breakpoints.
629 # A return value of 1 means that the software_single_step breakpoints
630 # were inserted; 0 means they were not.
631 F:=:int:software_single_step:struct regcache *regcache:regcache
633 # Return non-zero if the processor is executing a delay slot and a
634 # further single-step is needed before the instruction finishes.
635 M::int:single_step_through_delay:struct frame_info *frame:frame
636 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
637 # disassembler. Perhaps objdump can handle it?
638 f:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
639 f:=:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc::generic_skip_trampoline_code::0
642 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
643 # evaluates non-zero, this is the address where the debugger will place
644 # a step-resume breakpoint to get us past the dynamic linker.
645 m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
646 # Some systems also have trampoline code for returning from shared libs.
647 f:=:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
649 # A target might have problems with watchpoints as soon as the stack
650 # frame of the current function has been destroyed. This mostly happens
651 # as the first action in a funtion's epilogue. in_function_epilogue_p()
652 # is defined to return a non-zero value if either the given addr is one
653 # instruction after the stack destroying instruction up to the trailing
654 # return instruction or if we can figure out that the stack frame has
655 # already been invalidated regardless of the value of addr. Targets
656 # which don't suffer from that problem could just let this functionality
658 m::int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
659 # Given a vector of command-line arguments, return a newly allocated
660 # string which, when passed to the create_inferior function, will be
661 # parsed (on Unix systems, by the shell) to yield the same vector.
662 # This function should call error() if the argument vector is not
663 # representable for this target or if this target does not support
664 # command-line arguments.
665 # ARGC is the number of elements in the vector.
666 # ARGV is an array of strings, one per argument.
667 m::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
668 f:=:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
669 f:=:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
670 v:=:const char *:name_of_malloc:::"malloc":"malloc"::0:NAME_OF_MALLOC
671 v:=:int:cannot_step_breakpoint:::0:0::0
672 v:=:int:have_nonsteppable_watchpoint:::0:0::0
673 F:=:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
674 M::const char *:address_class_type_flags_to_name:int type_flags:type_flags
675 M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
676 # Is a register in a group
677 m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
678 # Fetch the pointer to the ith function argument.
679 F:=:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
681 # Return the appropriate register set for a core file section with
682 # name SECT_NAME and size SECT_SIZE.
683 M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
685 # If the elements of C++ vtables are in-place function descriptors rather
686 # than normal function pointers (which may point to code or a descriptor),
688 v::int:vtable_function_descriptors:::0:0::0
690 # Set if the least significant bit of the delta is used instead of the least
691 # significant bit of the pfn for pointers to virtual member functions.
692 v::int:vbit_in_delta:::0:0::0
699 exec > new-gdbarch.log
700 function_list | while do_read
703 ${class} ${returntype} ${function} ($formal)
707 eval echo \"\ \ \ \ ${r}=\${${r}}\"
709 if class_is_predicate_p && fallback_default_p
711 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
715 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
717 echo "Error: postdefault is useless when invalid_p=0" 1>&2
721 if class_is_multiarch_p
723 if class_is_predicate_p ; then :
724 elif test "x${predefault}" = "x"
726 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
735 compare_new gdbarch.log
741 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
743 /* Dynamic architecture support for GDB, the GNU debugger.
745 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
746 Free Software Foundation, Inc.
748 This file is part of GDB.
750 This program is free software; you can redistribute it and/or modify
751 it under the terms of the GNU General Public License as published by
752 the Free Software Foundation; either version 2 of the License, or
753 (at your option) any later version.
755 This program is distributed in the hope that it will be useful,
756 but WITHOUT ANY WARRANTY; without even the implied warranty of
757 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
758 GNU General Public License for more details.
760 You should have received a copy of the GNU General Public License
761 along with this program; if not, write to the Free Software
762 Foundation, Inc., 51 Franklin Street, Fifth Floor,
763 Boston, MA 02110-1301, USA. */
765 /* This file was created with the aid of \`\`gdbarch.sh''.
767 The Bourne shell script \`\`gdbarch.sh'' creates the files
768 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
769 against the existing \`\`gdbarch.[hc]''. Any differences found
772 If editing this file, please also run gdbarch.sh and merge any
773 changes into that script. Conversely, when making sweeping changes
774 to this file, modifying gdbarch.sh and using its output may prove
795 struct minimal_symbol;
799 struct disassemble_info;
802 struct bp_target_info;
805 extern struct gdbarch *current_gdbarch;
811 printf "/* The following are pre-initialized by GDBARCH. */\n"
812 function_list | while do_read
817 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
818 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
819 if test -n "${macro}"
821 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
822 printf "#error \"Non multi-arch definition of ${macro}\"\n"
824 printf "#if !defined (${macro})\n"
825 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
834 printf "/* The following are initialized by the target dependent code. */\n"
835 function_list | while do_read
837 if [ -n "${comment}" ]
839 echo "${comment}" | sed \
845 if class_is_predicate_p
847 if test -n "${macro}"
850 printf "#if defined (${macro})\n"
851 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
852 printf "#if !defined (${macro}_P)\n"
853 printf "#define ${macro}_P() (1)\n"
858 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
859 if test -n "${macro}"
861 printf "#if !defined (GDB_TM_FILE) && defined (${macro}_P)\n"
862 printf "#error \"Non multi-arch definition of ${macro}\"\n"
864 printf "#if !defined (${macro}_P)\n"
865 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
869 if class_is_variable_p
872 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
873 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
874 if test -n "${macro}"
876 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
877 printf "#error \"Non multi-arch definition of ${macro}\"\n"
879 printf "#if !defined (${macro})\n"
880 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
884 if class_is_function_p
887 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
889 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
890 elif class_is_multiarch_p
892 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
894 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
896 if [ "x${formal}" = "xvoid" ]
898 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
900 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
902 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
903 if test -n "${macro}"
905 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
906 printf "#error \"Non multi-arch definition of ${macro}\"\n"
908 if [ "x${actual}" = "x" ]
910 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
911 elif [ "x${actual}" = "x-" ]
913 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
915 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
917 printf "#if !defined (${macro})\n"
918 if [ "x${actual}" = "x" ]
920 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
921 elif [ "x${actual}" = "x-" ]
923 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
925 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
935 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
938 /* Mechanism for co-ordinating the selection of a specific
941 GDB targets (*-tdep.c) can register an interest in a specific
942 architecture. Other GDB components can register a need to maintain
943 per-architecture data.
945 The mechanisms below ensures that there is only a loose connection
946 between the set-architecture command and the various GDB
947 components. Each component can independently register their need
948 to maintain architecture specific data with gdbarch.
952 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
955 The more traditional mega-struct containing architecture specific
956 data for all the various GDB components was also considered. Since
957 GDB is built from a variable number of (fairly independent)
958 components it was determined that the global aproach was not
962 /* Register a new architectural family with GDB.
964 Register support for the specified ARCHITECTURE with GDB. When
965 gdbarch determines that the specified architecture has been
966 selected, the corresponding INIT function is called.
970 The INIT function takes two parameters: INFO which contains the
971 information available to gdbarch about the (possibly new)
972 architecture; ARCHES which is a list of the previously created
973 \`\`struct gdbarch'' for this architecture.
975 The INFO parameter is, as far as possible, be pre-initialized with
976 information obtained from INFO.ABFD or the global defaults.
978 The ARCHES parameter is a linked list (sorted most recently used)
979 of all the previously created architures for this architecture
980 family. The (possibly NULL) ARCHES->gdbarch can used to access
981 values from the previously selected architecture for this
982 architecture family. The global \`\`current_gdbarch'' shall not be
985 The INIT function shall return any of: NULL - indicating that it
986 doesn't recognize the selected architecture; an existing \`\`struct
987 gdbarch'' from the ARCHES list - indicating that the new
988 architecture is just a synonym for an earlier architecture (see
989 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
990 - that describes the selected architecture (see gdbarch_alloc()).
992 The DUMP_TDEP function shall print out all target specific values.
993 Care should be taken to ensure that the function works in both the
994 multi-arch and non- multi-arch cases. */
998 struct gdbarch *gdbarch;
999 struct gdbarch_list *next;
1004 /* Use default: NULL (ZERO). */
1005 const struct bfd_arch_info *bfd_arch_info;
1007 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1010 /* Use default: NULL (ZERO). */
1013 /* Use default: NULL (ZERO). */
1014 struct gdbarch_tdep_info *tdep_info;
1016 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1017 enum gdb_osabi osabi;
1019 /* Use default: NULL (ZERO). */
1020 const struct target_desc *target_desc;
1023 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1024 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1026 /* DEPRECATED - use gdbarch_register() */
1027 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1029 extern void gdbarch_register (enum bfd_architecture architecture,
1030 gdbarch_init_ftype *,
1031 gdbarch_dump_tdep_ftype *);
1034 /* Return a freshly allocated, NULL terminated, array of the valid
1035 architecture names. Since architectures are registered during the
1036 _initialize phase this function only returns useful information
1037 once initialization has been completed. */
1039 extern const char **gdbarch_printable_names (void);
1042 /* Helper function. Search the list of ARCHES for a GDBARCH that
1043 matches the information provided by INFO. */
1045 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1048 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1049 basic initialization using values obtained from the INFO and TDEP
1050 parameters. set_gdbarch_*() functions are called to complete the
1051 initialization of the object. */
1053 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1056 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1057 It is assumed that the caller freeds the \`\`struct
1060 extern void gdbarch_free (struct gdbarch *);
1063 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1064 obstack. The memory is freed when the corresponding architecture
1067 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1068 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1069 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1072 /* Helper function. Force an update of the current architecture.
1074 The actual architecture selected is determined by INFO, \`\`(gdb) set
1075 architecture'' et.al., the existing architecture and BFD's default
1076 architecture. INFO should be initialized to zero and then selected
1077 fields should be updated.
1079 Returns non-zero if the update succeeds */
1081 extern int gdbarch_update_p (struct gdbarch_info info);
1084 /* Helper function. Find an architecture matching info.
1086 INFO should be initialized using gdbarch_info_init, relevant fields
1087 set, and then finished using gdbarch_info_fill.
1089 Returns the corresponding architecture, or NULL if no matching
1090 architecture was found. "current_gdbarch" is not updated. */
1092 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1095 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1097 FIXME: kettenis/20031124: Of the functions that follow, only
1098 gdbarch_from_bfd is supposed to survive. The others will
1099 dissappear since in the future GDB will (hopefully) be truly
1100 multi-arch. However, for now we're still stuck with the concept of
1101 a single active architecture. */
1103 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1106 /* Register per-architecture data-pointer.
1108 Reserve space for a per-architecture data-pointer. An identifier
1109 for the reserved data-pointer is returned. That identifer should
1110 be saved in a local static variable.
1112 Memory for the per-architecture data shall be allocated using
1113 gdbarch_obstack_zalloc. That memory will be deleted when the
1114 corresponding architecture object is deleted.
1116 When a previously created architecture is re-selected, the
1117 per-architecture data-pointer for that previous architecture is
1118 restored. INIT() is not re-called.
1120 Multiple registrarants for any architecture are allowed (and
1121 strongly encouraged). */
1123 struct gdbarch_data;
1125 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1126 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1127 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1128 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1129 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1130 struct gdbarch_data *data,
1133 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1137 /* Register per-architecture memory region.
1139 Provide a memory-region swap mechanism. Per-architecture memory
1140 region are created. These memory regions are swapped whenever the
1141 architecture is changed. For a new architecture, the memory region
1142 is initialized with zero (0) and the INIT function is called.
1144 Memory regions are swapped / initialized in the order that they are
1145 registered. NULL DATA and/or INIT values can be specified.
1147 New code should use gdbarch_data_register_*(). */
1149 typedef void (gdbarch_swap_ftype) (void);
1150 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1151 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1155 /* Set the dynamic target-system-dependent parameters (architecture,
1156 byte-order, ...) using information found in the BFD */
1158 extern void set_gdbarch_from_file (bfd *);
1161 /* Initialize the current architecture to the "first" one we find on
1164 extern void initialize_current_architecture (void);
1166 /* gdbarch trace variable */
1167 extern int gdbarch_debug;
1169 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1174 #../move-if-change new-gdbarch.h gdbarch.h
1175 compare_new gdbarch.h
1182 exec > new-gdbarch.c
1187 #include "arch-utils.h"
1190 #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */
1193 #include "floatformat.h"
1195 #include "gdb_assert.h"
1196 #include "gdb_string.h"
1197 #include "gdb-events.h"
1198 #include "reggroups.h"
1200 #include "gdb_obstack.h"
1202 /* Static function declarations */
1204 static void alloc_gdbarch_data (struct gdbarch *);
1206 /* Non-zero if we want to trace architecture code. */
1208 #ifndef GDBARCH_DEBUG
1209 #define GDBARCH_DEBUG 0
1211 int gdbarch_debug = GDBARCH_DEBUG;
1213 show_gdbarch_debug (struct ui_file *file, int from_tty,
1214 struct cmd_list_element *c, const char *value)
1216 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1220 pformat (const struct floatformat **format)
1225 /* Just print out one of them - this is only for diagnostics. */
1226 return format[0]->name;
1231 # gdbarch open the gdbarch object
1233 printf "/* Maintain the struct gdbarch object */\n"
1235 printf "struct gdbarch\n"
1237 printf " /* Has this architecture been fully initialized? */\n"
1238 printf " int initialized_p;\n"
1240 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1241 printf " struct obstack *obstack;\n"
1243 printf " /* basic architectural information */\n"
1244 function_list | while do_read
1248 printf " ${returntype} ${function};\n"
1252 printf " /* target specific vector. */\n"
1253 printf " struct gdbarch_tdep *tdep;\n"
1254 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1256 printf " /* per-architecture data-pointers */\n"
1257 printf " unsigned nr_data;\n"
1258 printf " void **data;\n"
1260 printf " /* per-architecture swap-regions */\n"
1261 printf " struct gdbarch_swap *swap;\n"
1264 /* Multi-arch values.
1266 When extending this structure you must:
1268 Add the field below.
1270 Declare set/get functions and define the corresponding
1273 gdbarch_alloc(): If zero/NULL is not a suitable default,
1274 initialize the new field.
1276 verify_gdbarch(): Confirm that the target updated the field
1279 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1282 \`\`startup_gdbarch()'': Append an initial value to the static
1283 variable (base values on the host's c-type system).
1285 get_gdbarch(): Implement the set/get functions (probably using
1286 the macro's as shortcuts).
1291 function_list | while do_read
1293 if class_is_variable_p
1295 printf " ${returntype} ${function};\n"
1296 elif class_is_function_p
1298 printf " gdbarch_${function}_ftype *${function};\n"
1303 # A pre-initialized vector
1307 /* The default architecture uses host values (for want of a better
1311 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1313 printf "struct gdbarch startup_gdbarch =\n"
1315 printf " 1, /* Always initialized. */\n"
1316 printf " NULL, /* The obstack. */\n"
1317 printf " /* basic architecture information */\n"
1318 function_list | while do_read
1322 printf " ${staticdefault}, /* ${function} */\n"
1326 /* target specific vector and its dump routine */
1328 /*per-architecture data-pointers and swap regions */
1330 /* Multi-arch values */
1332 function_list | while do_read
1334 if class_is_function_p || class_is_variable_p
1336 printf " ${staticdefault}, /* ${function} */\n"
1340 /* startup_gdbarch() */
1343 struct gdbarch *current_gdbarch = &startup_gdbarch;
1346 # Create a new gdbarch struct
1349 /* Create a new \`\`struct gdbarch'' based on information provided by
1350 \`\`struct gdbarch_info''. */
1355 gdbarch_alloc (const struct gdbarch_info *info,
1356 struct gdbarch_tdep *tdep)
1358 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1359 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to
1360 the current local architecture and not the previous global
1361 architecture. This ensures that the new architectures initial
1362 values are not influenced by the previous architecture. Once
1363 everything is parameterised with gdbarch, this will go away. */
1364 struct gdbarch *current_gdbarch;
1366 /* Create an obstack for allocating all the per-architecture memory,
1367 then use that to allocate the architecture vector. */
1368 struct obstack *obstack = XMALLOC (struct obstack);
1369 obstack_init (obstack);
1370 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1371 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1372 current_gdbarch->obstack = obstack;
1374 alloc_gdbarch_data (current_gdbarch);
1376 current_gdbarch->tdep = tdep;
1379 function_list | while do_read
1383 printf " current_gdbarch->${function} = info->${function};\n"
1387 printf " /* Force the explicit initialization of these. */\n"
1388 function_list | while do_read
1390 if class_is_function_p || class_is_variable_p
1392 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1394 printf " current_gdbarch->${function} = ${predefault};\n"
1399 /* gdbarch_alloc() */
1401 return current_gdbarch;
1405 # Free a gdbarch struct.
1409 /* Allocate extra space using the per-architecture obstack. */
1412 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1414 void *data = obstack_alloc (arch->obstack, size);
1415 memset (data, 0, size);
1420 /* Free a gdbarch struct. This should never happen in normal
1421 operation --- once you've created a gdbarch, you keep it around.
1422 However, if an architecture's init function encounters an error
1423 building the structure, it may need to clean up a partially
1424 constructed gdbarch. */
1427 gdbarch_free (struct gdbarch *arch)
1429 struct obstack *obstack;
1430 gdb_assert (arch != NULL);
1431 gdb_assert (!arch->initialized_p);
1432 obstack = arch->obstack;
1433 obstack_free (obstack, 0); /* Includes the ARCH. */
1438 # verify a new architecture
1442 /* Ensure that all values in a GDBARCH are reasonable. */
1444 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1445 just happens to match the global variable \`\`current_gdbarch''. That
1446 way macros refering to that variable get the local and not the global
1447 version - ulgh. Once everything is parameterised with gdbarch, this
1451 verify_gdbarch (struct gdbarch *current_gdbarch)
1453 struct ui_file *log;
1454 struct cleanup *cleanups;
1457 log = mem_fileopen ();
1458 cleanups = make_cleanup_ui_file_delete (log);
1460 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1461 fprintf_unfiltered (log, "\n\tbyte-order");
1462 if (current_gdbarch->bfd_arch_info == NULL)
1463 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1464 /* Check those that need to be defined for the given multi-arch level. */
1466 function_list | while do_read
1468 if class_is_function_p || class_is_variable_p
1470 if [ "x${invalid_p}" = "x0" ]
1472 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1473 elif class_is_predicate_p
1475 printf " /* Skip verify of ${function}, has predicate */\n"
1476 # FIXME: See do_read for potential simplification
1477 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1479 printf " if (${invalid_p})\n"
1480 printf " current_gdbarch->${function} = ${postdefault};\n"
1481 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1483 printf " if (current_gdbarch->${function} == ${predefault})\n"
1484 printf " current_gdbarch->${function} = ${postdefault};\n"
1485 elif [ -n "${postdefault}" ]
1487 printf " if (current_gdbarch->${function} == 0)\n"
1488 printf " current_gdbarch->${function} = ${postdefault};\n"
1489 elif [ -n "${invalid_p}" ]
1491 printf " if (${invalid_p})\n"
1492 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1493 elif [ -n "${predefault}" ]
1495 printf " if (current_gdbarch->${function} == ${predefault})\n"
1496 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1501 buf = ui_file_xstrdup (log, &dummy);
1502 make_cleanup (xfree, buf);
1503 if (strlen (buf) > 0)
1504 internal_error (__FILE__, __LINE__,
1505 _("verify_gdbarch: the following are invalid ...%s"),
1507 do_cleanups (cleanups);
1511 # dump the structure
1515 /* Print out the details of the current architecture. */
1517 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1518 just happens to match the global variable \`\`current_gdbarch''. That
1519 way macros refering to that variable get the local and not the global
1520 version - ulgh. Once everything is parameterised with gdbarch, this
1524 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1526 const char *gdb_xm_file = "<not-defined>";
1527 const char *gdb_nm_file = "<not-defined>";
1528 const char *gdb_tm_file = "<not-defined>";
1529 #if defined (GDB_XM_FILE)
1530 gdb_xm_file = GDB_XM_FILE;
1532 fprintf_unfiltered (file,
1533 "gdbarch_dump: GDB_XM_FILE = %s\\n",
1535 #if defined (GDB_NM_FILE)
1536 gdb_nm_file = GDB_NM_FILE;
1538 fprintf_unfiltered (file,
1539 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1541 #if defined (GDB_TM_FILE)
1542 gdb_tm_file = GDB_TM_FILE;
1544 fprintf_unfiltered (file,
1545 "gdbarch_dump: GDB_TM_FILE = %s\\n",
1548 function_list | sort -t: -k 4 | while do_read
1550 # First the predicate
1551 if class_is_predicate_p
1553 if test -n "${macro}"
1555 printf "#ifdef ${macro}_P\n"
1556 printf " fprintf_unfiltered (file,\n"
1557 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1558 printf " \"${macro}_P()\",\n"
1559 printf " XSTRING (${macro}_P ()));\n"
1562 printf " fprintf_unfiltered (file,\n"
1563 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1564 printf " gdbarch_${function}_p (current_gdbarch));\n"
1566 # Print the macro definition.
1567 if test -n "${macro}"
1569 printf "#ifdef ${macro}\n"
1570 if class_is_function_p
1572 printf " fprintf_unfiltered (file,\n"
1573 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1574 printf " \"${macro}(${actual})\",\n"
1575 printf " XSTRING (${macro} (${actual})));\n"
1577 printf " fprintf_unfiltered (file,\n"
1578 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1579 printf " XSTRING (${macro}));\n"
1583 # Print the corresponding value.
1584 if class_is_function_p
1586 printf " fprintf_unfiltered (file,\n"
1587 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1588 printf " (long) current_gdbarch->${function});\n"
1591 case "${print}:${returntype}" in
1594 print="paddr_nz (current_gdbarch->${function})"
1598 print="paddr_d (current_gdbarch->${function})"
1604 printf " fprintf_unfiltered (file,\n"
1605 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1606 printf " ${print});\n"
1610 if (current_gdbarch->dump_tdep != NULL)
1611 current_gdbarch->dump_tdep (current_gdbarch, file);
1619 struct gdbarch_tdep *
1620 gdbarch_tdep (struct gdbarch *gdbarch)
1622 if (gdbarch_debug >= 2)
1623 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1624 return gdbarch->tdep;
1628 function_list | while do_read
1630 if class_is_predicate_p
1634 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1636 printf " gdb_assert (gdbarch != NULL);\n"
1637 printf " return ${predicate};\n"
1640 if class_is_function_p
1643 printf "${returntype}\n"
1644 if [ "x${formal}" = "xvoid" ]
1646 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1648 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1651 printf " gdb_assert (gdbarch != NULL);\n"
1652 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1653 if class_is_predicate_p && test -n "${predefault}"
1655 # Allow a call to a function with a predicate.
1656 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1658 printf " if (gdbarch_debug >= 2)\n"
1659 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1660 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1662 if class_is_multiarch_p
1669 if class_is_multiarch_p
1671 params="gdbarch, ${actual}"
1676 if [ "x${returntype}" = "xvoid" ]
1678 printf " gdbarch->${function} (${params});\n"
1680 printf " return gdbarch->${function} (${params});\n"
1685 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1686 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1688 printf " gdbarch->${function} = ${function};\n"
1690 elif class_is_variable_p
1693 printf "${returntype}\n"
1694 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1696 printf " gdb_assert (gdbarch != NULL);\n"
1697 if [ "x${invalid_p}" = "x0" ]
1699 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1700 elif [ -n "${invalid_p}" ]
1702 printf " /* Check variable is valid. */\n"
1703 printf " gdb_assert (!(${invalid_p}));\n"
1704 elif [ -n "${predefault}" ]
1706 printf " /* Check variable changed from pre-default. */\n"
1707 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1709 printf " if (gdbarch_debug >= 2)\n"
1710 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1711 printf " return gdbarch->${function};\n"
1715 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1716 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1718 printf " gdbarch->${function} = ${function};\n"
1720 elif class_is_info_p
1723 printf "${returntype}\n"
1724 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1726 printf " gdb_assert (gdbarch != NULL);\n"
1727 printf " if (gdbarch_debug >= 2)\n"
1728 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1729 printf " return gdbarch->${function};\n"
1734 # All the trailing guff
1738 /* Keep a registry of per-architecture data-pointers required by GDB
1745 gdbarch_data_pre_init_ftype *pre_init;
1746 gdbarch_data_post_init_ftype *post_init;
1749 struct gdbarch_data_registration
1751 struct gdbarch_data *data;
1752 struct gdbarch_data_registration *next;
1755 struct gdbarch_data_registry
1758 struct gdbarch_data_registration *registrations;
1761 struct gdbarch_data_registry gdbarch_data_registry =
1766 static struct gdbarch_data *
1767 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1768 gdbarch_data_post_init_ftype *post_init)
1770 struct gdbarch_data_registration **curr;
1771 /* Append the new registraration. */
1772 for (curr = &gdbarch_data_registry.registrations;
1774 curr = &(*curr)->next);
1775 (*curr) = XMALLOC (struct gdbarch_data_registration);
1776 (*curr)->next = NULL;
1777 (*curr)->data = XMALLOC (struct gdbarch_data);
1778 (*curr)->data->index = gdbarch_data_registry.nr++;
1779 (*curr)->data->pre_init = pre_init;
1780 (*curr)->data->post_init = post_init;
1781 (*curr)->data->init_p = 1;
1782 return (*curr)->data;
1785 struct gdbarch_data *
1786 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1788 return gdbarch_data_register (pre_init, NULL);
1791 struct gdbarch_data *
1792 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1794 return gdbarch_data_register (NULL, post_init);
1797 /* Create/delete the gdbarch data vector. */
1800 alloc_gdbarch_data (struct gdbarch *gdbarch)
1802 gdb_assert (gdbarch->data == NULL);
1803 gdbarch->nr_data = gdbarch_data_registry.nr;
1804 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1807 /* Initialize the current value of the specified per-architecture
1811 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1812 struct gdbarch_data *data,
1815 gdb_assert (data->index < gdbarch->nr_data);
1816 gdb_assert (gdbarch->data[data->index] == NULL);
1817 gdb_assert (data->pre_init == NULL);
1818 gdbarch->data[data->index] = pointer;
1821 /* Return the current value of the specified per-architecture
1825 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1827 gdb_assert (data->index < gdbarch->nr_data);
1828 if (gdbarch->data[data->index] == NULL)
1830 /* The data-pointer isn't initialized, call init() to get a
1832 if (data->pre_init != NULL)
1833 /* Mid architecture creation: pass just the obstack, and not
1834 the entire architecture, as that way it isn't possible for
1835 pre-init code to refer to undefined architecture
1837 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1838 else if (gdbarch->initialized_p
1839 && data->post_init != NULL)
1840 /* Post architecture creation: pass the entire architecture
1841 (as all fields are valid), but be careful to also detect
1842 recursive references. */
1844 gdb_assert (data->init_p);
1846 gdbarch->data[data->index] = data->post_init (gdbarch);
1850 /* The architecture initialization hasn't completed - punt -
1851 hope that the caller knows what they are doing. Once
1852 deprecated_set_gdbarch_data has been initialized, this can be
1853 changed to an internal error. */
1855 gdb_assert (gdbarch->data[data->index] != NULL);
1857 return gdbarch->data[data->index];
1862 /* Keep a registry of swapped data required by GDB modules. */
1867 struct gdbarch_swap_registration *source;
1868 struct gdbarch_swap *next;
1871 struct gdbarch_swap_registration
1874 unsigned long sizeof_data;
1875 gdbarch_swap_ftype *init;
1876 struct gdbarch_swap_registration *next;
1879 struct gdbarch_swap_registry
1882 struct gdbarch_swap_registration *registrations;
1885 struct gdbarch_swap_registry gdbarch_swap_registry =
1891 deprecated_register_gdbarch_swap (void *data,
1892 unsigned long sizeof_data,
1893 gdbarch_swap_ftype *init)
1895 struct gdbarch_swap_registration **rego;
1896 for (rego = &gdbarch_swap_registry.registrations;
1898 rego = &(*rego)->next);
1899 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1900 (*rego)->next = NULL;
1901 (*rego)->init = init;
1902 (*rego)->data = data;
1903 (*rego)->sizeof_data = sizeof_data;
1907 current_gdbarch_swap_init_hack (void)
1909 struct gdbarch_swap_registration *rego;
1910 struct gdbarch_swap **curr = ¤t_gdbarch->swap;
1911 for (rego = gdbarch_swap_registry.registrations;
1915 if (rego->data != NULL)
1917 (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1918 struct gdbarch_swap);
1919 (*curr)->source = rego;
1920 (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1922 (*curr)->next = NULL;
1923 curr = &(*curr)->next;
1925 if (rego->init != NULL)
1930 static struct gdbarch *
1931 current_gdbarch_swap_out_hack (void)
1933 struct gdbarch *old_gdbarch = current_gdbarch;
1934 struct gdbarch_swap *curr;
1936 gdb_assert (old_gdbarch != NULL);
1937 for (curr = old_gdbarch->swap;
1941 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1942 memset (curr->source->data, 0, curr->source->sizeof_data);
1944 current_gdbarch = NULL;
1949 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1951 struct gdbarch_swap *curr;
1953 gdb_assert (current_gdbarch == NULL);
1954 for (curr = new_gdbarch->swap;
1957 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1958 current_gdbarch = new_gdbarch;
1962 /* Keep a registry of the architectures known by GDB. */
1964 struct gdbarch_registration
1966 enum bfd_architecture bfd_architecture;
1967 gdbarch_init_ftype *init;
1968 gdbarch_dump_tdep_ftype *dump_tdep;
1969 struct gdbarch_list *arches;
1970 struct gdbarch_registration *next;
1973 static struct gdbarch_registration *gdbarch_registry = NULL;
1976 append_name (const char ***buf, int *nr, const char *name)
1978 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1984 gdbarch_printable_names (void)
1986 /* Accumulate a list of names based on the registed list of
1988 enum bfd_architecture a;
1990 const char **arches = NULL;
1991 struct gdbarch_registration *rego;
1992 for (rego = gdbarch_registry;
1996 const struct bfd_arch_info *ap;
1997 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1999 internal_error (__FILE__, __LINE__,
2000 _("gdbarch_architecture_names: multi-arch unknown"));
2003 append_name (&arches, &nr_arches, ap->printable_name);
2008 append_name (&arches, &nr_arches, NULL);
2014 gdbarch_register (enum bfd_architecture bfd_architecture,
2015 gdbarch_init_ftype *init,
2016 gdbarch_dump_tdep_ftype *dump_tdep)
2018 struct gdbarch_registration **curr;
2019 const struct bfd_arch_info *bfd_arch_info;
2020 /* Check that BFD recognizes this architecture */
2021 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2022 if (bfd_arch_info == NULL)
2024 internal_error (__FILE__, __LINE__,
2025 _("gdbarch: Attempt to register unknown architecture (%d)"),
2028 /* Check that we haven't seen this architecture before */
2029 for (curr = &gdbarch_registry;
2031 curr = &(*curr)->next)
2033 if (bfd_architecture == (*curr)->bfd_architecture)
2034 internal_error (__FILE__, __LINE__,
2035 _("gdbarch: Duplicate registraration of architecture (%s)"),
2036 bfd_arch_info->printable_name);
2040 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2041 bfd_arch_info->printable_name,
2044 (*curr) = XMALLOC (struct gdbarch_registration);
2045 (*curr)->bfd_architecture = bfd_architecture;
2046 (*curr)->init = init;
2047 (*curr)->dump_tdep = dump_tdep;
2048 (*curr)->arches = NULL;
2049 (*curr)->next = NULL;
2053 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2054 gdbarch_init_ftype *init)
2056 gdbarch_register (bfd_architecture, init, NULL);
2060 /* Look for an architecture using gdbarch_info. */
2062 struct gdbarch_list *
2063 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2064 const struct gdbarch_info *info)
2066 for (; arches != NULL; arches = arches->next)
2068 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2070 if (info->byte_order != arches->gdbarch->byte_order)
2072 if (info->osabi != arches->gdbarch->osabi)
2074 if (info->target_desc != arches->gdbarch->target_desc)
2082 /* Find an architecture that matches the specified INFO. Create a new
2083 architecture if needed. Return that new architecture. Assumes
2084 that there is no current architecture. */
2086 static struct gdbarch *
2087 find_arch_by_info (struct gdbarch_info info)
2089 struct gdbarch *new_gdbarch;
2090 struct gdbarch_registration *rego;
2092 /* The existing architecture has been swapped out - all this code
2093 works from a clean slate. */
2094 gdb_assert (current_gdbarch == NULL);
2096 /* Fill in missing parts of the INFO struct using a number of
2097 sources: "set ..."; INFOabfd supplied; and the global
2099 gdbarch_info_fill (&info);
2101 /* Must have found some sort of architecture. */
2102 gdb_assert (info.bfd_arch_info != NULL);
2106 fprintf_unfiltered (gdb_stdlog,
2107 "find_arch_by_info: info.bfd_arch_info %s\n",
2108 (info.bfd_arch_info != NULL
2109 ? info.bfd_arch_info->printable_name
2111 fprintf_unfiltered (gdb_stdlog,
2112 "find_arch_by_info: info.byte_order %d (%s)\n",
2114 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2115 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2117 fprintf_unfiltered (gdb_stdlog,
2118 "find_arch_by_info: info.osabi %d (%s)\n",
2119 info.osabi, gdbarch_osabi_name (info.osabi));
2120 fprintf_unfiltered (gdb_stdlog,
2121 "find_arch_by_info: info.abfd 0x%lx\n",
2123 fprintf_unfiltered (gdb_stdlog,
2124 "find_arch_by_info: info.tdep_info 0x%lx\n",
2125 (long) info.tdep_info);
2128 /* Find the tdep code that knows about this architecture. */
2129 for (rego = gdbarch_registry;
2132 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2137 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2138 "No matching architecture\n");
2142 /* Ask the tdep code for an architecture that matches "info". */
2143 new_gdbarch = rego->init (info, rego->arches);
2145 /* Did the tdep code like it? No. Reject the change and revert to
2146 the old architecture. */
2147 if (new_gdbarch == NULL)
2150 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2151 "Target rejected architecture\n");
2155 /* Is this a pre-existing architecture (as determined by already
2156 being initialized)? Move it to the front of the architecture
2157 list (keeping the list sorted Most Recently Used). */
2158 if (new_gdbarch->initialized_p)
2160 struct gdbarch_list **list;
2161 struct gdbarch_list *this;
2163 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2164 "Previous architecture 0x%08lx (%s) selected\n",
2166 new_gdbarch->bfd_arch_info->printable_name);
2167 /* Find the existing arch in the list. */
2168 for (list = ®o->arches;
2169 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2170 list = &(*list)->next);
2171 /* It had better be in the list of architectures. */
2172 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2175 (*list) = this->next;
2176 /* Insert THIS at the front. */
2177 this->next = rego->arches;
2178 rego->arches = this;
2183 /* It's a new architecture. */
2185 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2186 "New architecture 0x%08lx (%s) selected\n",
2188 new_gdbarch->bfd_arch_info->printable_name);
2190 /* Insert the new architecture into the front of the architecture
2191 list (keep the list sorted Most Recently Used). */
2193 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2194 this->next = rego->arches;
2195 this->gdbarch = new_gdbarch;
2196 rego->arches = this;
2199 /* Check that the newly installed architecture is valid. Plug in
2200 any post init values. */
2201 new_gdbarch->dump_tdep = rego->dump_tdep;
2202 verify_gdbarch (new_gdbarch);
2203 new_gdbarch->initialized_p = 1;
2205 /* Initialize any per-architecture swap areas. This phase requires
2206 a valid global CURRENT_GDBARCH. Set it momentarially, and then
2207 swap the entire architecture out. */
2208 current_gdbarch = new_gdbarch;
2209 current_gdbarch_swap_init_hack ();
2210 current_gdbarch_swap_out_hack ();
2213 gdbarch_dump (new_gdbarch, gdb_stdlog);
2219 gdbarch_find_by_info (struct gdbarch_info info)
2221 /* Save the previously selected architecture, setting the global to
2222 NULL. This stops things like gdbarch->init() trying to use the
2223 previous architecture's configuration. The previous architecture
2224 may not even be of the same architecture family. The most recent
2225 architecture of the same family is found at the head of the
2226 rego->arches list. */
2227 struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2229 /* Find the specified architecture. */
2230 struct gdbarch *new_gdbarch = find_arch_by_info (info);
2232 /* Restore the existing architecture. */
2233 gdb_assert (current_gdbarch == NULL);
2234 current_gdbarch_swap_in_hack (old_gdbarch);
2239 /* Make the specified architecture current, swapping the existing one
2243 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2245 gdb_assert (new_gdbarch != NULL);
2246 gdb_assert (current_gdbarch != NULL);
2247 gdb_assert (new_gdbarch->initialized_p);
2248 current_gdbarch_swap_out_hack ();
2249 current_gdbarch_swap_in_hack (new_gdbarch);
2250 architecture_changed_event ();
2251 reinit_frame_cache ();
2254 extern void _initialize_gdbarch (void);
2257 _initialize_gdbarch (void)
2259 struct cmd_list_element *c;
2261 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2262 Set architecture debugging."), _("\\
2263 Show architecture debugging."), _("\\
2264 When non-zero, architecture debugging is enabled."),
2267 &setdebuglist, &showdebuglist);
2273 #../move-if-change new-gdbarch.c gdbarch.c
2274 compare_new gdbarch.c