3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998-2014 Free Software Foundation, Inc.
7 # This file is part of GDB.
9 # This program is free software; you can redistribute it and/or modify
10 # it under the terms of the GNU General Public License as published by
11 # the Free Software Foundation; either version 3 of the License, or
12 # (at your option) any later version.
14 # This program is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program. If not, see <http://www.gnu.org/licenses/>.
22 # Make certain that the script is not running in an internationalized
25 LC_ALL
=C
; export LC_ALL
33 echo "${file} missing? cp new-${file} ${file}" 1>&2
34 elif diff -u ${file} new-
${file}
36 echo "${file} unchanged" 1>&2
38 echo "${file} has changed? cp new-${file} ${file}" 1>&2
43 # Format of the input table
44 read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
50 # On some SH's, 'read' trims leading and trailing whitespace by
51 # default (e.g., bash), while on others (e.g., dash), it doesn't.
52 # Set IFS to empty to disable the trimming everywhere.
53 while IFS
='' read line
55 if test "${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}}\" = \"\
\"
96 m
) staticdefault
="${predefault}" ;;
97 M
) staticdefault
="0" ;;
98 * ) test "${staticdefault}" || staticdefault
=0 ;;
103 case "${invalid_p}" in
105 if test -n "${predefault}"
107 #invalid_p="gdbarch->${function} == ${predefault}"
108 predicate
="gdbarch->${function} != ${predefault}"
109 elif class_is_variable_p
111 predicate
="gdbarch->${function} != 0"
112 elif class_is_function_p
114 predicate
="gdbarch->${function} != NULL"
118 echo "Predicate function ${function} with invalid_p." 1>&2
125 # PREDEFAULT is a valid fallback definition of MEMBER when
126 # multi-arch is not enabled. This ensures that the
127 # default value, when multi-arch is the same as the
128 # default value when not multi-arch. POSTDEFAULT is
129 # always a valid definition of MEMBER as this again
130 # ensures consistency.
132 if [ -n "${postdefault}" ]
134 fallbackdefault
="${postdefault}"
135 elif [ -n "${predefault}" ]
137 fallbackdefault
="${predefault}"
142 #NOT YET: See gdbarch.log for basic verification of
157 fallback_default_p
()
159 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
160 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
163 class_is_variable_p
()
171 class_is_function_p
()
174 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
179 class_is_multiarch_p
()
187 class_is_predicate_p
()
190 *F
* |
*V
* |
*M
* ) true
;;
204 # dump out/verify the doco
214 # F -> function + predicate
215 # hiding a function + predicate to test function validity
218 # V -> variable + predicate
219 # hiding a variable + predicate to test variables validity
221 # hiding something from the ``struct info'' object
222 # m -> multi-arch function
223 # hiding a multi-arch function (parameterised with the architecture)
224 # M -> multi-arch function + predicate
225 # hiding a multi-arch function + predicate to test function validity
229 # For functions, the return type; for variables, the data type
233 # For functions, the member function name; for variables, the
234 # variable name. Member function names are always prefixed with
235 # ``gdbarch_'' for name-space purity.
239 # The formal argument list. It is assumed that the formal
240 # argument list includes the actual name of each list element.
241 # A function with no arguments shall have ``void'' as the
242 # formal argument list.
246 # The list of actual arguments. The arguments specified shall
247 # match the FORMAL list given above. Functions with out
248 # arguments leave this blank.
252 # To help with the GDB startup a static gdbarch object is
253 # created. STATICDEFAULT is the value to insert into that
254 # static gdbarch object. Since this a static object only
255 # simple expressions can be used.
257 # If STATICDEFAULT is empty, zero is used.
261 # An initial value to assign to MEMBER of the freshly
262 # malloc()ed gdbarch object. After initialization, the
263 # freshly malloc()ed object is passed to the target
264 # architecture code for further updates.
266 # If PREDEFAULT is empty, zero is used.
268 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
269 # INVALID_P are specified, PREDEFAULT will be used as the
270 # default for the non- multi-arch target.
272 # A zero PREDEFAULT function will force the fallback to call
275 # Variable declarations can refer to ``gdbarch'' which will
276 # contain the current architecture. Care should be taken.
280 # A value to assign to MEMBER of the new gdbarch object should
281 # the target architecture code fail to change the PREDEFAULT
284 # If POSTDEFAULT is empty, no post update is performed.
286 # If both INVALID_P and POSTDEFAULT are non-empty then
287 # INVALID_P will be used to determine if MEMBER should be
288 # changed to POSTDEFAULT.
290 # If a non-empty POSTDEFAULT and a zero INVALID_P are
291 # specified, POSTDEFAULT will be used as the default for the
292 # non- multi-arch target (regardless of the value of
295 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
297 # Variable declarations can refer to ``gdbarch'' which
298 # will contain the current architecture. Care should be
303 # A predicate equation that validates MEMBER. Non-zero is
304 # returned if the code creating the new architecture failed to
305 # initialize MEMBER or the initialized the member is invalid.
306 # If POSTDEFAULT is non-empty then MEMBER will be updated to
307 # that value. If POSTDEFAULT is empty then internal_error()
310 # If INVALID_P is empty, a check that MEMBER is no longer
311 # equal to PREDEFAULT is used.
313 # The expression ``0'' disables the INVALID_P check making
314 # PREDEFAULT a legitimate value.
316 # See also PREDEFAULT and POSTDEFAULT.
320 # An optional expression that convers MEMBER to a value
321 # suitable for formatting using %s.
323 # If PRINT is empty, core_addr_to_string_nz (for CORE_ADDR)
324 # or plongest (anything else) is used.
326 garbage_at_eol
) : ;;
328 # Catches stray fields.
331 echo "Bad field ${field}"
339 # See below (DOCO) for description of each field
341 i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name
343 i:enum bfd_endian:byte_order:::BFD_ENDIAN_BIG
344 i:enum bfd_endian:byte_order_for_code:::BFD_ENDIAN_BIG
346 i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
348 i:const struct target_desc *:target_desc:::::::host_address_to_string (gdbarch->target_desc)
350 # The bit byte-order has to do just with numbering of bits in debugging symbols
351 # and such. Conceptually, it's quite separate from byte/word byte order.
352 v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
354 # Number of bits in a char or unsigned char for the target machine.
355 # Just like CHAR_BIT in <limits.h> but describes the target machine.
356 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
358 # Number of bits in a short or unsigned short for the target machine.
359 v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
360 # Number of bits in an int or unsigned int for the target machine.
361 v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
362 # Number of bits in a long or unsigned long for the target machine.
363 v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
364 # Number of bits in a long long or unsigned long long for the target
366 v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
367 # Alignment of a long long or unsigned long long for the target
369 v:int:long_long_align_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
371 # The ABI default bit-size and format for "half", "float", "double", and
372 # "long double". These bit/format pairs should eventually be combined
373 # into a single object. For the moment, just initialize them as a pair.
374 # Each format describes both the big and little endian layouts (if
377 v:int:half_bit:::16:2*TARGET_CHAR_BIT::0
378 v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format)
379 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
380 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
381 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
382 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
383 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
384 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
386 # For most targets, a pointer on the target and its representation as an
387 # address in GDB have the same size and "look the same". For such a
388 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
389 # / addr_bit will be set from it.
391 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
392 # also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
393 # gdbarch_address_to_pointer as well.
395 # ptr_bit is the size of a pointer on the target
396 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
397 # addr_bit is the size of a target address as represented in gdb
398 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
400 # dwarf2_addr_size is the target address size as used in the Dwarf debug
401 # info. For .debug_frame FDEs, this is supposed to be the target address
402 # size from the associated CU header, and which is equivalent to the
403 # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
404 # Unfortunately there is no good way to determine this value. Therefore
405 # dwarf2_addr_size simply defaults to the target pointer size.
407 # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
408 # defined using the target's pointer size so far.
410 # Note that dwarf2_addr_size only needs to be redefined by a target if the
411 # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
412 # and if Dwarf versions < 4 need to be supported.
413 v:int:dwarf2_addr_size:::sizeof (void*):0:gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT:
415 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
416 v:int:char_signed:::1:-1:1
418 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
419 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
420 # Function for getting target's idea of a frame pointer. FIXME: GDB's
421 # whole scheme for dealing with "frames" and "frame pointers" needs a
423 m:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
425 M:enum register_status:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
426 # Read a register into a new struct value. If the register is wholly
427 # or partly unavailable, this should call mark_value_bytes_unavailable
428 # as appropriate. If this is defined, then pseudo_register_read will
430 M:struct value *:pseudo_register_read_value:struct regcache *regcache, int cookednum:regcache, cookednum
431 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
433 v:int:num_regs:::0:-1
434 # This macro gives the number of pseudo-registers that live in the
435 # register namespace but do not get fetched or stored on the target.
436 # These pseudo-registers may be aliases for other registers,
437 # combinations of other registers, or they may be computed by GDB.
438 v:int:num_pseudo_regs:::0:0::0
440 # Assemble agent expression bytecode to collect pseudo-register REG.
441 # Return -1 if something goes wrong, 0 otherwise.
442 M:int:ax_pseudo_register_collect:struct agent_expr *ax, int reg:ax, reg
444 # Assemble agent expression bytecode to push the value of pseudo-register
445 # REG on the interpreter stack.
446 # Return -1 if something goes wrong, 0 otherwise.
447 M:int:ax_pseudo_register_push_stack:struct agent_expr *ax, int reg:ax, reg
449 # GDB's standard (or well known) register numbers. These can map onto
450 # a real register or a pseudo (computed) register or not be defined at
452 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
453 v:int:sp_regnum:::-1:-1::0
454 v:int:pc_regnum:::-1:-1::0
455 v:int:ps_regnum:::-1:-1::0
456 v:int:fp0_regnum:::0:-1::0
457 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
458 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
459 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
460 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
461 # Convert from an sdb register number to an internal gdb register number.
462 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
463 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
464 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
465 m:const char *:register_name:int regnr:regnr::0
467 # Return the type of a register specified by the architecture. Only
468 # the register cache should call this function directly; others should
469 # use "register_type".
470 M:struct type *:register_type:int reg_nr:reg_nr
472 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
473 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
474 # deprecated_fp_regnum.
475 v:int:deprecated_fp_regnum:::-1:-1::0
477 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
478 v:int:call_dummy_location::::AT_ENTRY_POINT::0
479 M:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache
481 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
482 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
483 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
484 # MAP a GDB RAW register number onto a simulator register number. See
485 # also include/...-sim.h.
486 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
487 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
488 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
490 # Determine the address where a longjmp will land and save this address
491 # in PC. Return nonzero on success.
493 # FRAME corresponds to the longjmp frame.
494 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
497 v:int:believe_pcc_promotion:::::::
499 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
500 f:int:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep:frame, regnum, type, buf, optimizedp, unavailablep:0
501 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
502 # Construct a value representing the contents of register REGNUM in
503 # frame FRAME, interpreted as type TYPE. The routine needs to
504 # allocate and return a struct value with all value attributes
505 # (but not the value contents) filled in.
506 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
508 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
509 m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
510 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
512 # Return the return-value convention that will be used by FUNCTION
513 # to return a value of type VALTYPE. FUNCTION may be NULL in which
514 # case the return convention is computed based only on VALTYPE.
516 # If READBUF is not NULL, extract the return value and save it in this buffer.
518 # If WRITEBUF is not NULL, it contains a return value which will be
519 # stored into the appropriate register. This can be used when we want
520 # to force the value returned by a function (see the "return" command
522 M:enum return_value_convention:return_value:struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:function, valtype, regcache, readbuf, writebuf
524 # Return true if the return value of function is stored in the first hidden
525 # parameter. In theory, this feature should be language-dependent, specified
526 # by language and its ABI, such as C++. Unfortunately, compiler may
527 # implement it to a target-dependent feature. So that we need such hook here
528 # to be aware of this in GDB.
529 m:int:return_in_first_hidden_param_p:struct type *type:type::default_return_in_first_hidden_param_p::0
531 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
532 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
533 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
534 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
535 # Return the adjusted address and kind to use for Z0/Z1 packets.
536 # KIND is usually the memory length of the breakpoint, but may have a
537 # different target-specific meaning.
538 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
539 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
540 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
541 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
542 v:CORE_ADDR:decr_pc_after_break:::0:::0
544 # A function can be addressed by either it's "pointer" (possibly a
545 # descriptor address) or "entry point" (first executable instruction).
546 # The method "convert_from_func_ptr_addr" converting the former to the
547 # latter. gdbarch_deprecated_function_start_offset is being used to implement
548 # a simplified subset of that functionality - the function's address
549 # corresponds to the "function pointer" and the function's start
550 # corresponds to the "function entry point" - and hence is redundant.
552 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
554 # Return the remote protocol register number associated with this
555 # register. Normally the identity mapping.
556 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
558 # Fetch the target specific address used to represent a load module.
559 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
561 v:CORE_ADDR:frame_args_skip:::0:::0
562 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
563 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
564 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
565 # frame-base. Enable frame-base before frame-unwind.
566 F:int:frame_num_args:struct frame_info *frame:frame
568 M:CORE_ADDR:frame_align:CORE_ADDR address:address
569 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
570 v:int:frame_red_zone_size
572 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
573 # On some machines there are bits in addresses which are not really
574 # part of the address, but are used by the kernel, the hardware, etc.
575 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
576 # we get a "real" address such as one would find in a symbol table.
577 # This is used only for addresses of instructions, and even then I'm
578 # not sure it's used in all contexts. It exists to deal with there
579 # being a few stray bits in the PC which would mislead us, not as some
580 # sort of generic thing to handle alignment or segmentation (it's
581 # possible it should be in TARGET_READ_PC instead).
582 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
584 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
585 # indicates if the target needs software single step. An ISA method to
588 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
589 # breakpoints using the breakpoint system instead of blatting memory directly
592 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
593 # target can single step. If not, then implement single step using breakpoints.
595 # A return value of 1 means that the software_single_step breakpoints
596 # were inserted; 0 means they were not.
597 F:int:software_single_step:struct frame_info *frame:frame
599 # Return non-zero if the processor is executing a delay slot and a
600 # further single-step is needed before the instruction finishes.
601 M:int:single_step_through_delay:struct frame_info *frame:frame
602 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
603 # disassembler. Perhaps objdump can handle it?
604 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
605 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
608 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
609 # evaluates non-zero, this is the address where the debugger will place
610 # a step-resume breakpoint to get us past the dynamic linker.
611 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
612 # Some systems also have trampoline code for returning from shared libs.
613 m:int:in_solib_return_trampoline:CORE_ADDR pc, const char *name:pc, name::generic_in_solib_return_trampoline::0
615 # A target might have problems with watchpoints as soon as the stack
616 # frame of the current function has been destroyed. This mostly happens
617 # as the first action in a funtion's epilogue. in_function_epilogue_p()
618 # is defined to return a non-zero value if either the given addr is one
619 # instruction after the stack destroying instruction up to the trailing
620 # return instruction or if we can figure out that the stack frame has
621 # already been invalidated regardless of the value of addr. Targets
622 # which don't suffer from that problem could just let this functionality
624 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
625 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
626 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
627 v:int:cannot_step_breakpoint:::0:0::0
628 v:int:have_nonsteppable_watchpoint:::0:0::0
629 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
630 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
632 # Return the appropriate type_flags for the supplied address class.
633 # This function should return 1 if the address class was recognized and
634 # type_flags was set, zero otherwise.
635 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
636 # Is a register in a group
637 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
638 # Fetch the pointer to the ith function argument.
639 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
641 # Return the appropriate register set for a core file section with
642 # name SECT_NAME and size SECT_SIZE.
643 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
645 # Supported register notes in a core file.
646 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
648 # Create core file notes
649 M:char *:make_corefile_notes:bfd *obfd, int *note_size:obfd, note_size
651 # The elfcore writer hook to use to write Linux prpsinfo notes to core
652 # files. Most Linux architectures use the same prpsinfo32 or
653 # prpsinfo64 layouts, and so won't need to provide this hook, as we
654 # call the Linux generic routines in bfd to write prpsinfo notes by
656 F:char *:elfcore_write_linux_prpsinfo:bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info:obfd, note_data, note_size, info
658 # Find core file memory regions
659 M:int:find_memory_regions:find_memory_region_ftype func, void *data:func, data
661 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
662 # core file into buffer READBUF with length LEN.
663 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
665 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
666 # libraries list from core file into buffer READBUF with length LEN.
667 M:LONGEST:core_xfer_shared_libraries_aix:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
669 # How the core target converts a PTID from a core file to a string.
670 M:char *:core_pid_to_str:ptid_t ptid:ptid
672 # BFD target to use when generating a core file.
673 V:const char *:gcore_bfd_target:::0:0:::pstring (gdbarch->gcore_bfd_target)
675 # If the elements of C++ vtables are in-place function descriptors rather
676 # than normal function pointers (which may point to code or a descriptor),
678 v:int:vtable_function_descriptors:::0:0::0
680 # Set if the least significant bit of the delta is used instead of the least
681 # significant bit of the pfn for pointers to virtual member functions.
682 v:int:vbit_in_delta:::0:0::0
684 # Advance PC to next instruction in order to skip a permanent breakpoint.
685 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
687 # The maximum length of an instruction on this architecture in bytes.
688 V:ULONGEST:max_insn_length:::0:0
690 # Copy the instruction at FROM to TO, and make any adjustments
691 # necessary to single-step it at that address.
693 # REGS holds the state the thread's registers will have before
694 # executing the copied instruction; the PC in REGS will refer to FROM,
695 # not the copy at TO. The caller should update it to point at TO later.
697 # Return a pointer to data of the architecture's choice to be passed
698 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
699 # the instruction's effects have been completely simulated, with the
700 # resulting state written back to REGS.
702 # For a general explanation of displaced stepping and how GDB uses it,
703 # see the comments in infrun.c.
705 # The TO area is only guaranteed to have space for
706 # gdbarch_max_insn_length (arch) bytes, so this function must not
707 # write more bytes than that to that area.
709 # If you do not provide this function, GDB assumes that the
710 # architecture does not support displaced stepping.
712 # If your architecture doesn't need to adjust instructions before
713 # single-stepping them, consider using simple_displaced_step_copy_insn
715 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
717 # Return true if GDB should use hardware single-stepping to execute
718 # the displaced instruction identified by CLOSURE. If false,
719 # GDB will simply restart execution at the displaced instruction
720 # location, and it is up to the target to ensure GDB will receive
721 # control again (e.g. by placing a software breakpoint instruction
722 # into the displaced instruction buffer).
724 # The default implementation returns false on all targets that
725 # provide a gdbarch_software_single_step routine, and true otherwise.
726 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
728 # Fix up the state resulting from successfully single-stepping a
729 # displaced instruction, to give the result we would have gotten from
730 # stepping the instruction in its original location.
732 # REGS is the register state resulting from single-stepping the
733 # displaced instruction.
735 # CLOSURE is the result from the matching call to
736 # gdbarch_displaced_step_copy_insn.
738 # If you provide gdbarch_displaced_step_copy_insn.but not this
739 # function, then GDB assumes that no fixup is needed after
740 # single-stepping the instruction.
742 # For a general explanation of displaced stepping and how GDB uses it,
743 # see the comments in infrun.c.
744 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
746 # Free a closure returned by gdbarch_displaced_step_copy_insn.
748 # If you provide gdbarch_displaced_step_copy_insn, you must provide
749 # this function as well.
751 # If your architecture uses closures that don't need to be freed, then
752 # you can use simple_displaced_step_free_closure here.
754 # For a general explanation of displaced stepping and how GDB uses it,
755 # see the comments in infrun.c.
756 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
758 # Return the address of an appropriate place to put displaced
759 # instructions while we step over them. There need only be one such
760 # place, since we're only stepping one thread over a breakpoint at a
763 # For a general explanation of displaced stepping and how GDB uses it,
764 # see the comments in infrun.c.
765 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
767 # Relocate an instruction to execute at a different address. OLDLOC
768 # is the address in the inferior memory where the instruction to
769 # relocate is currently at. On input, TO points to the destination
770 # where we want the instruction to be copied (and possibly adjusted)
771 # to. On output, it points to one past the end of the resulting
772 # instruction(s). The effect of executing the instruction at TO shall
773 # be the same as if executing it at FROM. For example, call
774 # instructions that implicitly push the return address on the stack
775 # should be adjusted to return to the instruction after OLDLOC;
776 # relative branches, and other PC-relative instructions need the
777 # offset adjusted; etc.
778 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
780 # Refresh overlay mapped state for section OSECT.
781 F:void:overlay_update:struct obj_section *osect:osect
783 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
785 # Handle special encoding of static variables in stabs debug info.
786 F:const char *:static_transform_name:const char *name:name
787 # Set if the address in N_SO or N_FUN stabs may be zero.
788 v:int:sofun_address_maybe_missing:::0:0::0
790 # Parse the instruction at ADDR storing in the record execution log
791 # the registers REGCACHE and memory ranges that will be affected when
792 # the instruction executes, along with their current values.
793 # Return -1 if something goes wrong, 0 otherwise.
794 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
796 # Save process state after a signal.
797 # Return -1 if something goes wrong, 0 otherwise.
798 M:int:process_record_signal:struct regcache *regcache, enum gdb_signal signal:regcache, signal
800 # Signal translation: translate inferior's signal (target's) number
801 # into GDB's representation. The implementation of this method must
802 # be host independent. IOW, don't rely on symbols of the NAT_FILE
803 # header (the nm-*.h files), the host <signal.h> header, or similar
804 # headers. This is mainly used when cross-debugging core files ---
805 # "Live" targets hide the translation behind the target interface
806 # (target_wait, target_resume, etc.).
807 M:enum gdb_signal:gdb_signal_from_target:int signo:signo
809 # Signal translation: translate the GDB's internal signal number into
810 # the inferior's signal (target's) representation. The implementation
811 # of this method must be host independent. IOW, don't rely on symbols
812 # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
813 # header, or similar headers.
814 # Return the target signal number if found, or -1 if the GDB internal
815 # signal number is invalid.
816 M:int:gdb_signal_to_target:enum gdb_signal signal:signal
818 # Extra signal info inspection.
820 # Return a type suitable to inspect extra signal information.
821 M:struct type *:get_siginfo_type:void:
823 # Record architecture-specific information from the symbol table.
824 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
826 # Function for the 'catch syscall' feature.
828 # Get architecture-specific system calls information from registers.
829 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
831 # SystemTap related fields and functions.
833 # A NULL-terminated array of prefixes used to mark an integer constant
834 # on the architecture's assembly.
835 # For example, on x86 integer constants are written as:
837 # \$10 ;; integer constant 10
839 # in this case, this prefix would be the character \`\$\'.
840 v:const char *const *:stap_integer_prefixes:::0:0::0:pstring_list (gdbarch->stap_integer_prefixes)
842 # A NULL-terminated array of suffixes used to mark an integer constant
843 # on the architecture's assembly.
844 v:const char *const *:stap_integer_suffixes:::0:0::0:pstring_list (gdbarch->stap_integer_suffixes)
846 # A NULL-terminated array of prefixes used to mark a register name on
847 # the architecture's assembly.
848 # For example, on x86 the register name is written as:
850 # \%eax ;; register eax
852 # in this case, this prefix would be the character \`\%\'.
853 v:const char *const *:stap_register_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_prefixes)
855 # A NULL-terminated array of suffixes used to mark a register name on
856 # the architecture's assembly.
857 v:const char *const *:stap_register_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_suffixes)
859 # A NULL-terminated array of prefixes used to mark a register
860 # indirection on the architecture's assembly.
861 # For example, on x86 the register indirection is written as:
863 # \(\%eax\) ;; indirecting eax
865 # in this case, this prefix would be the charater \`\(\'.
867 # Please note that we use the indirection prefix also for register
868 # displacement, e.g., \`4\(\%eax\)\' on x86.
869 v:const char *const *:stap_register_indirection_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_prefixes)
871 # A NULL-terminated array of suffixes used to mark a register
872 # indirection on the architecture's assembly.
873 # For example, on x86 the register indirection is written as:
875 # \(\%eax\) ;; indirecting eax
877 # in this case, this prefix would be the charater \`\)\'.
879 # Please note that we use the indirection suffix also for register
880 # displacement, e.g., \`4\(\%eax\)\' on x86.
881 v:const char *const *:stap_register_indirection_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_suffixes)
883 # Prefix(es) used to name a register using GDB's nomenclature.
885 # For example, on PPC a register is represented by a number in the assembly
886 # language (e.g., \`10\' is the 10th general-purpose register). However,
887 # inside GDB this same register has an \`r\' appended to its name, so the 10th
888 # register would be represented as \`r10\' internally.
889 v:const char *:stap_gdb_register_prefix:::0:0::0:pstring (gdbarch->stap_gdb_register_prefix)
891 # Suffix used to name a register using GDB's nomenclature.
892 v:const char *:stap_gdb_register_suffix:::0:0::0:pstring (gdbarch->stap_gdb_register_suffix)
894 # Check if S is a single operand.
896 # Single operands can be:
897 # \- Literal integers, e.g. \`\$10\' on x86
898 # \- Register access, e.g. \`\%eax\' on x86
899 # \- Register indirection, e.g. \`\(\%eax\)\' on x86
900 # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
902 # This function should check for these patterns on the string
903 # and return 1 if some were found, or zero otherwise. Please try to match
904 # as much info as you can from the string, i.e., if you have to match
905 # something like \`\(\%\', do not match just the \`\(\'.
906 M:int:stap_is_single_operand:const char *s:s
908 # Function used to handle a "special case" in the parser.
910 # A "special case" is considered to be an unknown token, i.e., a token
911 # that the parser does not know how to parse. A good example of special
912 # case would be ARM's register displacement syntax:
914 # [R0, #4] ;; displacing R0 by 4
916 # Since the parser assumes that a register displacement is of the form:
918 # <number> <indirection_prefix> <register_name> <indirection_suffix>
920 # it means that it will not be able to recognize and parse this odd syntax.
921 # Therefore, we should add a special case function that will handle this token.
923 # This function should generate the proper expression form of the expression
924 # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
925 # and so on). It should also return 1 if the parsing was successful, or zero
926 # if the token was not recognized as a special token (in this case, returning
927 # zero means that the special parser is deferring the parsing to the generic
928 # parser), and should advance the buffer pointer (p->arg).
929 M:int:stap_parse_special_token:struct stap_parse_info *p:p
932 # True if the list of shared libraries is one and only for all
933 # processes, as opposed to a list of shared libraries per inferior.
934 # This usually means that all processes, although may or may not share
935 # an address space, will see the same set of symbols at the same
937 v:int:has_global_solist:::0:0::0
939 # On some targets, even though each inferior has its own private
940 # address space, the debug interface takes care of making breakpoints
941 # visible to all address spaces automatically. For such cases,
942 # this property should be set to true.
943 v:int:has_global_breakpoints:::0:0::0
945 # True if inferiors share an address space (e.g., uClinux).
946 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
948 # True if a fast tracepoint can be set at an address.
949 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
951 # Return the "auto" target charset.
952 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
953 # Return the "auto" target wide charset.
954 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
956 # If non-empty, this is a file extension that will be opened in place
957 # of the file extension reported by the shared library list.
959 # This is most useful for toolchains that use a post-linker tool,
960 # where the names of the files run on the target differ in extension
961 # compared to the names of the files GDB should load for debug info.
962 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
964 # If true, the target OS has DOS-based file system semantics. That
965 # is, absolute paths include a drive name, and the backslash is
966 # considered a directory separator.
967 v:int:has_dos_based_file_system:::0:0::0
969 # Generate bytecodes to collect the return address in a frame.
970 # Since the bytecodes run on the target, possibly with GDB not even
971 # connected, the full unwinding machinery is not available, and
972 # typically this function will issue bytecodes for one or more likely
973 # places that the return address may be found.
974 m:void:gen_return_address:struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope:ax, value, scope::default_gen_return_address::0
976 # Implement the "info proc" command.
977 M:void:info_proc:char *args, enum info_proc_what what:args, what
979 # Implement the "info proc" command for core files. Noe that there
980 # are two "info_proc"-like methods on gdbarch -- one for core files,
981 # one for live targets.
982 M:void:core_info_proc:char *args, enum info_proc_what what:args, what
984 # Iterate over all objfiles in the order that makes the most sense
985 # for the architecture to make global symbol searches.
987 # CB is a callback function where OBJFILE is the objfile to be searched,
988 # and CB_DATA a pointer to user-defined data (the same data that is passed
989 # when calling this gdbarch method). The iteration stops if this function
992 # CB_DATA is a pointer to some user-defined data to be passed to
995 # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
996 # inspected when the symbol search was requested.
997 m:void:iterate_over_objfiles_in_search_order:iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile:cb, cb_data, current_objfile:0:default_iterate_over_objfiles_in_search_order::0
999 # Ravenscar arch-dependent ops.
1000 v:struct ravenscar_arch_ops *:ravenscar_ops:::NULL:NULL::0:host_address_to_string (gdbarch->ravenscar_ops)
1002 # Return non-zero if the instruction at ADDR is a call; zero otherwise.
1003 m:int:insn_is_call:CORE_ADDR addr:addr::default_insn_is_call::0
1005 # Return non-zero if the instruction at ADDR is a return; zero otherwise.
1006 m:int:insn_is_ret:CORE_ADDR addr:addr::default_insn_is_ret::0
1008 # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
1009 m:int:insn_is_jump:CORE_ADDR addr:addr::default_insn_is_jump::0
1016 exec > new-gdbarch.log
1017 function_list |
while do_read
1020 ${class} ${returntype} ${function} ($formal)
1024 eval echo \"\ \ \ \
${r}=\
${${r}}\"
1026 if class_is_predicate_p
&& fallback_default_p
1028 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
1032 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
1034 echo "Error: postdefault is useless when invalid_p=0" 1>&2
1038 if class_is_multiarch_p
1040 if class_is_predicate_p
; then :
1041 elif test "x${predefault}" = "x"
1043 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
1052 compare_new gdbarch.log
1058 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
1061 /* Dynamic architecture support for GDB, the GNU debugger.
1063 Copyright (C) 1998-2014 Free Software Foundation, Inc.
1065 This file is part of GDB.
1067 This program is free software; you can redistribute it and/or modify
1068 it under the terms of the GNU General Public License as published by
1069 the Free Software Foundation; either version 3 of the License, or
1070 (at your option) any later version.
1072 This program is distributed in the hope that it will be useful,
1073 but WITHOUT ANY WARRANTY; without even the implied warranty of
1074 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1075 GNU General Public License for more details.
1077 You should have received a copy of the GNU General Public License
1078 along with this program. If not, see <http://www.gnu.org/licenses/>. */
1080 /* This file was created with the aid of \`\`gdbarch.sh''.
1082 The Bourne shell script \`\`gdbarch.sh'' creates the files
1083 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
1084 against the existing \`\`gdbarch.[hc]''. Any differences found
1087 If editing this file, please also run gdbarch.sh and merge any
1088 changes into that script. Conversely, when making sweeping changes
1089 to this file, modifying gdbarch.sh and using its output may prove
1099 exec > new-gdbarch.h
1111 struct minimal_symbol;
1115 struct disassemble_info;
1118 struct bp_target_info;
1120 struct displaced_step_closure;
1121 struct core_regset_section;
1125 struct stap_parse_info;
1126 struct ravenscar_arch_ops;
1127 struct elf_internal_linux_prpsinfo;
1129 /* The architecture associated with the inferior through the
1130 connection to the target.
1132 The architecture vector provides some information that is really a
1133 property of the inferior, accessed through a particular target:
1134 ptrace operations; the layout of certain RSP packets; the solib_ops
1135 vector; etc. To differentiate architecture accesses to
1136 per-inferior/target properties from
1137 per-thread/per-frame/per-objfile properties, accesses to
1138 per-inferior/target properties should be made through this
1141 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
1142 extern struct gdbarch *target_gdbarch (void);
1144 /* The initial, default architecture. It uses host values (for want of a better
1146 extern struct gdbarch startup_gdbarch;
1149 /* Callback type for the 'iterate_over_objfiles_in_search_order'
1152 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
1153 (struct objfile *objfile, void *cb_data);
1156 # function typedef's
1159 printf "/* The following are pre-initialized by GDBARCH. */\n"
1160 function_list |
while do_read
1165 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1166 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
1170 # function typedef's
1173 printf "/* The following are initialized by the target dependent code. */\n"
1174 function_list |
while do_read
1176 if [ -n "${comment}" ]
1178 echo "${comment}" |
sed \
1184 if class_is_predicate_p
1187 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1189 if class_is_variable_p
1192 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1193 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1195 if class_is_function_p
1198 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1200 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1201 elif class_is_multiarch_p
1203 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1205 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1207 if [ "x${formal}" = "xvoid" ]
1209 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1211 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1213 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1220 /* Definition for an unknown syscall, used basically in error-cases. */
1221 #define UNKNOWN_SYSCALL (-1)
1223 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1226 /* Mechanism for co-ordinating the selection of a specific
1229 GDB targets (*-tdep.c) can register an interest in a specific
1230 architecture. Other GDB components can register a need to maintain
1231 per-architecture data.
1233 The mechanisms below ensures that there is only a loose connection
1234 between the set-architecture command and the various GDB
1235 components. Each component can independently register their need
1236 to maintain architecture specific data with gdbarch.
1240 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1243 The more traditional mega-struct containing architecture specific
1244 data for all the various GDB components was also considered. Since
1245 GDB is built from a variable number of (fairly independent)
1246 components it was determined that the global aproach was not
1250 /* Register a new architectural family with GDB.
1252 Register support for the specified ARCHITECTURE with GDB. When
1253 gdbarch determines that the specified architecture has been
1254 selected, the corresponding INIT function is called.
1258 The INIT function takes two parameters: INFO which contains the
1259 information available to gdbarch about the (possibly new)
1260 architecture; ARCHES which is a list of the previously created
1261 \`\`struct gdbarch'' for this architecture.
1263 The INFO parameter is, as far as possible, be pre-initialized with
1264 information obtained from INFO.ABFD or the global defaults.
1266 The ARCHES parameter is a linked list (sorted most recently used)
1267 of all the previously created architures for this architecture
1268 family. The (possibly NULL) ARCHES->gdbarch can used to access
1269 values from the previously selected architecture for this
1270 architecture family.
1272 The INIT function shall return any of: NULL - indicating that it
1273 doesn't recognize the selected architecture; an existing \`\`struct
1274 gdbarch'' from the ARCHES list - indicating that the new
1275 architecture is just a synonym for an earlier architecture (see
1276 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1277 - that describes the selected architecture (see gdbarch_alloc()).
1279 The DUMP_TDEP function shall print out all target specific values.
1280 Care should be taken to ensure that the function works in both the
1281 multi-arch and non- multi-arch cases. */
1285 struct gdbarch *gdbarch;
1286 struct gdbarch_list *next;
1291 /* Use default: NULL (ZERO). */
1292 const struct bfd_arch_info *bfd_arch_info;
1294 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1295 enum bfd_endian byte_order;
1297 enum bfd_endian byte_order_for_code;
1299 /* Use default: NULL (ZERO). */
1302 /* Use default: NULL (ZERO). */
1303 struct gdbarch_tdep_info *tdep_info;
1305 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1306 enum gdb_osabi osabi;
1308 /* Use default: NULL (ZERO). */
1309 const struct target_desc *target_desc;
1312 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1313 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1315 /* DEPRECATED - use gdbarch_register() */
1316 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1318 extern void gdbarch_register (enum bfd_architecture architecture,
1319 gdbarch_init_ftype *,
1320 gdbarch_dump_tdep_ftype *);
1323 /* Return a freshly allocated, NULL terminated, array of the valid
1324 architecture names. Since architectures are registered during the
1325 _initialize phase this function only returns useful information
1326 once initialization has been completed. */
1328 extern const char **gdbarch_printable_names (void);
1331 /* Helper function. Search the list of ARCHES for a GDBARCH that
1332 matches the information provided by INFO. */
1334 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1337 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1338 basic initialization using values obtained from the INFO and TDEP
1339 parameters. set_gdbarch_*() functions are called to complete the
1340 initialization of the object. */
1342 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1345 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1346 It is assumed that the caller freeds the \`\`struct
1349 extern void gdbarch_free (struct gdbarch *);
1352 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1353 obstack. The memory is freed when the corresponding architecture
1356 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1357 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1358 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1361 /* Helper function. Force an update of the current architecture.
1363 The actual architecture selected is determined by INFO, \`\`(gdb) set
1364 architecture'' et.al., the existing architecture and BFD's default
1365 architecture. INFO should be initialized to zero and then selected
1366 fields should be updated.
1368 Returns non-zero if the update succeeds. */
1370 extern int gdbarch_update_p (struct gdbarch_info info);
1373 /* Helper function. Find an architecture matching info.
1375 INFO should be initialized using gdbarch_info_init, relevant fields
1376 set, and then finished using gdbarch_info_fill.
1378 Returns the corresponding architecture, or NULL if no matching
1379 architecture was found. */
1381 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1384 /* Helper function. Set the target gdbarch to "gdbarch". */
1386 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1389 /* Register per-architecture data-pointer.
1391 Reserve space for a per-architecture data-pointer. An identifier
1392 for the reserved data-pointer is returned. That identifer should
1393 be saved in a local static variable.
1395 Memory for the per-architecture data shall be allocated using
1396 gdbarch_obstack_zalloc. That memory will be deleted when the
1397 corresponding architecture object is deleted.
1399 When a previously created architecture is re-selected, the
1400 per-architecture data-pointer for that previous architecture is
1401 restored. INIT() is not re-called.
1403 Multiple registrarants for any architecture are allowed (and
1404 strongly encouraged). */
1406 struct gdbarch_data;
1408 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1409 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1410 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1411 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1412 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1413 struct gdbarch_data *data,
1416 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1419 /* Set the dynamic target-system-dependent parameters (architecture,
1420 byte-order, ...) using information found in the BFD. */
1422 extern void set_gdbarch_from_file (bfd *);
1425 /* Initialize the current architecture to the "first" one we find on
1428 extern void initialize_current_architecture (void);
1430 /* gdbarch trace variable */
1431 extern unsigned int gdbarch_debug;
1433 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1438 #../move-if-change new-gdbarch.h gdbarch.h
1439 compare_new gdbarch.h
1446 exec > new-gdbarch.c
1451 #include "arch-utils.h"
1454 #include "inferior.h"
1457 #include "floatformat.h"
1459 #include "gdb_assert.h"
1461 #include "reggroups.h"
1463 #include "gdb_obstack.h"
1464 #include "observer.h"
1465 #include "regcache.h"
1466 #include "objfiles.h"
1468 /* Static function declarations */
1470 static void alloc_gdbarch_data (struct gdbarch *);
1472 /* Non-zero if we want to trace architecture code. */
1474 #ifndef GDBARCH_DEBUG
1475 #define GDBARCH_DEBUG 0
1477 unsigned int gdbarch_debug = GDBARCH_DEBUG;
1479 show_gdbarch_debug (struct ui_file *file, int from_tty,
1480 struct cmd_list_element *c, const char *value)
1482 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1486 pformat (const struct floatformat **format)
1491 /* Just print out one of them - this is only for diagnostics. */
1492 return format[0]->name;
1496 pstring (const char *string)
1503 /* Helper function to print a list of strings, represented as "const
1504 char *const *". The list is printed comma-separated. */
1507 pstring_list (const char *const *list)
1509 static char ret[100];
1510 const char *const *p;
1517 for (p = list; *p != NULL && offset < sizeof (ret); ++p)
1519 size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
1525 gdb_assert (offset - 2 < sizeof (ret));
1526 ret[offset - 2] = '\0';
1534 # gdbarch open the gdbarch object
1536 printf "/* Maintain the struct gdbarch object. */\n"
1538 printf "struct gdbarch\n"
1540 printf " /* Has this architecture been fully initialized? */\n"
1541 printf " int initialized_p;\n"
1543 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1544 printf " struct obstack *obstack;\n"
1546 printf " /* basic architectural information. */\n"
1547 function_list |
while do_read
1551 printf " ${returntype} ${function};\n"
1555 printf " /* target specific vector. */\n"
1556 printf " struct gdbarch_tdep *tdep;\n"
1557 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1559 printf " /* per-architecture data-pointers. */\n"
1560 printf " unsigned nr_data;\n"
1561 printf " void **data;\n"
1564 /* Multi-arch values.
1566 When extending this structure you must:
1568 Add the field below.
1570 Declare set/get functions and define the corresponding
1573 gdbarch_alloc(): If zero/NULL is not a suitable default,
1574 initialize the new field.
1576 verify_gdbarch(): Confirm that the target updated the field
1579 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1582 \`\`startup_gdbarch()'': Append an initial value to the static
1583 variable (base values on the host's c-type system).
1585 get_gdbarch(): Implement the set/get functions (probably using
1586 the macro's as shortcuts).
1591 function_list |
while do_read
1593 if class_is_variable_p
1595 printf " ${returntype} ${function};\n"
1596 elif class_is_function_p
1598 printf " gdbarch_${function}_ftype *${function};\n"
1603 # A pre-initialized vector
1607 /* The default architecture uses host values (for want of a better
1611 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1613 printf "struct gdbarch startup_gdbarch =\n"
1615 printf " 1, /* Always initialized. */\n"
1616 printf " NULL, /* The obstack. */\n"
1617 printf " /* basic architecture information. */\n"
1618 function_list |
while do_read
1622 printf " ${staticdefault}, /* ${function} */\n"
1626 /* target specific vector and its dump routine. */
1628 /*per-architecture data-pointers. */
1630 /* Multi-arch values */
1632 function_list |
while do_read
1634 if class_is_function_p || class_is_variable_p
1636 printf " ${staticdefault}, /* ${function} */\n"
1640 /* startup_gdbarch() */
1645 # Create a new gdbarch struct
1648 /* Create a new \`\`struct gdbarch'' based on information provided by
1649 \`\`struct gdbarch_info''. */
1654 gdbarch_alloc (const struct gdbarch_info *info,
1655 struct gdbarch_tdep *tdep)
1657 struct gdbarch *gdbarch;
1659 /* Create an obstack for allocating all the per-architecture memory,
1660 then use that to allocate the architecture vector. */
1661 struct obstack *obstack = XNEW (struct obstack);
1662 obstack_init (obstack);
1663 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1664 memset (gdbarch, 0, sizeof (*gdbarch));
1665 gdbarch->obstack = obstack;
1667 alloc_gdbarch_data (gdbarch);
1669 gdbarch->tdep = tdep;
1672 function_list |
while do_read
1676 printf " gdbarch->${function} = info->${function};\n"
1680 printf " /* Force the explicit initialization of these. */\n"
1681 function_list |
while do_read
1683 if class_is_function_p || class_is_variable_p
1685 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1687 printf " gdbarch->${function} = ${predefault};\n"
1692 /* gdbarch_alloc() */
1698 # Free a gdbarch struct.
1702 /* Allocate extra space using the per-architecture obstack. */
1705 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1707 void *data = obstack_alloc (arch->obstack, size);
1709 memset (data, 0, size);
1714 /* Free a gdbarch struct. This should never happen in normal
1715 operation --- once you've created a gdbarch, you keep it around.
1716 However, if an architecture's init function encounters an error
1717 building the structure, it may need to clean up a partially
1718 constructed gdbarch. */
1721 gdbarch_free (struct gdbarch *arch)
1723 struct obstack *obstack;
1725 gdb_assert (arch != NULL);
1726 gdb_assert (!arch->initialized_p);
1727 obstack = arch->obstack;
1728 obstack_free (obstack, 0); /* Includes the ARCH. */
1733 # verify a new architecture
1737 /* Ensure that all values in a GDBARCH are reasonable. */
1740 verify_gdbarch (struct gdbarch *gdbarch)
1742 struct ui_file *log;
1743 struct cleanup *cleanups;
1747 log = mem_fileopen ();
1748 cleanups = make_cleanup_ui_file_delete (log);
1750 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1751 fprintf_unfiltered (log, "\n\tbyte-order");
1752 if (gdbarch->bfd_arch_info == NULL)
1753 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1754 /* Check those that need to be defined for the given multi-arch level. */
1756 function_list |
while do_read
1758 if class_is_function_p || class_is_variable_p
1760 if [ "x${invalid_p}" = "x0" ]
1762 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1763 elif class_is_predicate_p
1765 printf " /* Skip verify of ${function}, has predicate. */\n"
1766 # FIXME: See do_read for potential simplification
1767 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1769 printf " if (${invalid_p})\n"
1770 printf " gdbarch->${function} = ${postdefault};\n"
1771 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1773 printf " if (gdbarch->${function} == ${predefault})\n"
1774 printf " gdbarch->${function} = ${postdefault};\n"
1775 elif [ -n "${postdefault}" ]
1777 printf " if (gdbarch->${function} == 0)\n"
1778 printf " gdbarch->${function} = ${postdefault};\n"
1779 elif [ -n "${invalid_p}" ]
1781 printf " if (${invalid_p})\n"
1782 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1783 elif [ -n "${predefault}" ]
1785 printf " if (gdbarch->${function} == ${predefault})\n"
1786 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1791 buf = ui_file_xstrdup (log, &length);
1792 make_cleanup (xfree, buf);
1794 internal_error (__FILE__, __LINE__,
1795 _("verify_gdbarch: the following are invalid ...%s"),
1797 do_cleanups (cleanups);
1801 # dump the structure
1805 /* Print out the details of the current architecture. */
1808 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1810 const char *gdb_nm_file = "<not-defined>";
1812 #if defined (GDB_NM_FILE)
1813 gdb_nm_file = GDB_NM_FILE;
1815 fprintf_unfiltered (file,
1816 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1819 function_list |
sort -t: -k 3 |
while do_read
1821 # First the predicate
1822 if class_is_predicate_p
1824 printf " fprintf_unfiltered (file,\n"
1825 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1826 printf " gdbarch_${function}_p (gdbarch));\n"
1828 # Print the corresponding value.
1829 if class_is_function_p
1831 printf " fprintf_unfiltered (file,\n"
1832 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1833 printf " host_address_to_string (gdbarch->${function}));\n"
1836 case "${print}:${returntype}" in
1839 print
="core_addr_to_string_nz (gdbarch->${function})"
1843 print
="plongest (gdbarch->${function})"
1849 printf " fprintf_unfiltered (file,\n"
1850 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1851 printf " ${print});\n"
1855 if (gdbarch->dump_tdep != NULL)
1856 gdbarch->dump_tdep (gdbarch, file);
1864 struct gdbarch_tdep *
1865 gdbarch_tdep (struct gdbarch *gdbarch)
1867 if (gdbarch_debug >= 2)
1868 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1869 return gdbarch->tdep;
1873 function_list |
while do_read
1875 if class_is_predicate_p
1879 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1881 printf " gdb_assert (gdbarch != NULL);\n"
1882 printf " return ${predicate};\n"
1885 if class_is_function_p
1888 printf "${returntype}\n"
1889 if [ "x${formal}" = "xvoid" ]
1891 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1893 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1896 printf " gdb_assert (gdbarch != NULL);\n"
1897 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1898 if class_is_predicate_p
&& test -n "${predefault}"
1900 # Allow a call to a function with a predicate.
1901 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1903 printf " if (gdbarch_debug >= 2)\n"
1904 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1905 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1907 if class_is_multiarch_p
1914 if class_is_multiarch_p
1916 params
="gdbarch, ${actual}"
1921 if [ "x${returntype}" = "xvoid" ]
1923 printf " gdbarch->${function} (${params});\n"
1925 printf " return gdbarch->${function} (${params});\n"
1930 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1931 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1933 printf " gdbarch->${function} = ${function};\n"
1935 elif class_is_variable_p
1938 printf "${returntype}\n"
1939 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1941 printf " gdb_assert (gdbarch != NULL);\n"
1942 if [ "x${invalid_p}" = "x0" ]
1944 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1945 elif [ -n "${invalid_p}" ]
1947 printf " /* Check variable is valid. */\n"
1948 printf " gdb_assert (!(${invalid_p}));\n"
1949 elif [ -n "${predefault}" ]
1951 printf " /* Check variable changed from pre-default. */\n"
1952 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1954 printf " if (gdbarch_debug >= 2)\n"
1955 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1956 printf " return gdbarch->${function};\n"
1960 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1961 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1963 printf " gdbarch->${function} = ${function};\n"
1965 elif class_is_info_p
1968 printf "${returntype}\n"
1969 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1971 printf " gdb_assert (gdbarch != NULL);\n"
1972 printf " if (gdbarch_debug >= 2)\n"
1973 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1974 printf " return gdbarch->${function};\n"
1979 # All the trailing guff
1983 /* Keep a registry of per-architecture data-pointers required by GDB
1990 gdbarch_data_pre_init_ftype *pre_init;
1991 gdbarch_data_post_init_ftype *post_init;
1994 struct gdbarch_data_registration
1996 struct gdbarch_data *data;
1997 struct gdbarch_data_registration *next;
2000 struct gdbarch_data_registry
2003 struct gdbarch_data_registration *registrations;
2006 struct gdbarch_data_registry gdbarch_data_registry =
2011 static struct gdbarch_data *
2012 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
2013 gdbarch_data_post_init_ftype *post_init)
2015 struct gdbarch_data_registration **curr;
2017 /* Append the new registration. */
2018 for (curr = &gdbarch_data_registry.registrations;
2020 curr = &(*curr)->next);
2021 (*curr) = XNEW (struct gdbarch_data_registration);
2022 (*curr)->next = NULL;
2023 (*curr)->data = XNEW (struct gdbarch_data);
2024 (*curr)->data->index = gdbarch_data_registry.nr++;
2025 (*curr)->data->pre_init = pre_init;
2026 (*curr)->data->post_init = post_init;
2027 (*curr)->data->init_p = 1;
2028 return (*curr)->data;
2031 struct gdbarch_data *
2032 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
2034 return gdbarch_data_register (pre_init, NULL);
2037 struct gdbarch_data *
2038 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
2040 return gdbarch_data_register (NULL, post_init);
2043 /* Create/delete the gdbarch data vector. */
2046 alloc_gdbarch_data (struct gdbarch *gdbarch)
2048 gdb_assert (gdbarch->data == NULL);
2049 gdbarch->nr_data = gdbarch_data_registry.nr;
2050 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
2053 /* Initialize the current value of the specified per-architecture
2057 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
2058 struct gdbarch_data *data,
2061 gdb_assert (data->index < gdbarch->nr_data);
2062 gdb_assert (gdbarch->data[data->index] == NULL);
2063 gdb_assert (data->pre_init == NULL);
2064 gdbarch->data[data->index] = pointer;
2067 /* Return the current value of the specified per-architecture
2071 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
2073 gdb_assert (data->index < gdbarch->nr_data);
2074 if (gdbarch->data[data->index] == NULL)
2076 /* The data-pointer isn't initialized, call init() to get a
2078 if (data->pre_init != NULL)
2079 /* Mid architecture creation: pass just the obstack, and not
2080 the entire architecture, as that way it isn't possible for
2081 pre-init code to refer to undefined architecture
2083 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
2084 else if (gdbarch->initialized_p
2085 && data->post_init != NULL)
2086 /* Post architecture creation: pass the entire architecture
2087 (as all fields are valid), but be careful to also detect
2088 recursive references. */
2090 gdb_assert (data->init_p);
2092 gdbarch->data[data->index] = data->post_init (gdbarch);
2096 /* The architecture initialization hasn't completed - punt -
2097 hope that the caller knows what they are doing. Once
2098 deprecated_set_gdbarch_data has been initialized, this can be
2099 changed to an internal error. */
2101 gdb_assert (gdbarch->data[data->index] != NULL);
2103 return gdbarch->data[data->index];
2107 /* Keep a registry of the architectures known by GDB. */
2109 struct gdbarch_registration
2111 enum bfd_architecture bfd_architecture;
2112 gdbarch_init_ftype *init;
2113 gdbarch_dump_tdep_ftype *dump_tdep;
2114 struct gdbarch_list *arches;
2115 struct gdbarch_registration *next;
2118 static struct gdbarch_registration *gdbarch_registry = NULL;
2121 append_name (const char ***buf, int *nr, const char *name)
2123 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2129 gdbarch_printable_names (void)
2131 /* Accumulate a list of names based on the registed list of
2134 const char **arches = NULL;
2135 struct gdbarch_registration *rego;
2137 for (rego = gdbarch_registry;
2141 const struct bfd_arch_info *ap;
2142 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2144 internal_error (__FILE__, __LINE__,
2145 _("gdbarch_architecture_names: multi-arch unknown"));
2148 append_name (&arches, &nr_arches, ap->printable_name);
2153 append_name (&arches, &nr_arches, NULL);
2159 gdbarch_register (enum bfd_architecture bfd_architecture,
2160 gdbarch_init_ftype *init,
2161 gdbarch_dump_tdep_ftype *dump_tdep)
2163 struct gdbarch_registration **curr;
2164 const struct bfd_arch_info *bfd_arch_info;
2166 /* Check that BFD recognizes this architecture */
2167 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2168 if (bfd_arch_info == NULL)
2170 internal_error (__FILE__, __LINE__,
2171 _("gdbarch: Attempt to register "
2172 "unknown architecture (%d)"),
2175 /* Check that we haven't seen this architecture before. */
2176 for (curr = &gdbarch_registry;
2178 curr = &(*curr)->next)
2180 if (bfd_architecture == (*curr)->bfd_architecture)
2181 internal_error (__FILE__, __LINE__,
2182 _("gdbarch: Duplicate registration "
2183 "of architecture (%s)"),
2184 bfd_arch_info->printable_name);
2188 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
2189 bfd_arch_info->printable_name,
2190 host_address_to_string (init));
2192 (*curr) = XNEW (struct gdbarch_registration);
2193 (*curr)->bfd_architecture = bfd_architecture;
2194 (*curr)->init = init;
2195 (*curr)->dump_tdep = dump_tdep;
2196 (*curr)->arches = NULL;
2197 (*curr)->next = NULL;
2201 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2202 gdbarch_init_ftype *init)
2204 gdbarch_register (bfd_architecture, init, NULL);
2208 /* Look for an architecture using gdbarch_info. */
2210 struct gdbarch_list *
2211 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2212 const struct gdbarch_info *info)
2214 for (; arches != NULL; arches = arches->next)
2216 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2218 if (info->byte_order != arches->gdbarch->byte_order)
2220 if (info->osabi != arches->gdbarch->osabi)
2222 if (info->target_desc != arches->gdbarch->target_desc)
2230 /* Find an architecture that matches the specified INFO. Create a new
2231 architecture if needed. Return that new architecture. */
2234 gdbarch_find_by_info (struct gdbarch_info info)
2236 struct gdbarch *new_gdbarch;
2237 struct gdbarch_registration *rego;
2239 /* Fill in missing parts of the INFO struct using a number of
2240 sources: "set ..."; INFOabfd supplied; and the global
2242 gdbarch_info_fill (&info);
2244 /* Must have found some sort of architecture. */
2245 gdb_assert (info.bfd_arch_info != NULL);
2249 fprintf_unfiltered (gdb_stdlog,
2250 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2251 (info.bfd_arch_info != NULL
2252 ? info.bfd_arch_info->printable_name
2254 fprintf_unfiltered (gdb_stdlog,
2255 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2257 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2258 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2260 fprintf_unfiltered (gdb_stdlog,
2261 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2262 info.osabi, gdbarch_osabi_name (info.osabi));
2263 fprintf_unfiltered (gdb_stdlog,
2264 "gdbarch_find_by_info: info.abfd %s\n",
2265 host_address_to_string (info.abfd));
2266 fprintf_unfiltered (gdb_stdlog,
2267 "gdbarch_find_by_info: info.tdep_info %s\n",
2268 host_address_to_string (info.tdep_info));
2271 /* Find the tdep code that knows about this architecture. */
2272 for (rego = gdbarch_registry;
2275 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2280 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2281 "No matching architecture\n");
2285 /* Ask the tdep code for an architecture that matches "info". */
2286 new_gdbarch = rego->init (info, rego->arches);
2288 /* Did the tdep code like it? No. Reject the change and revert to
2289 the old architecture. */
2290 if (new_gdbarch == NULL)
2293 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2294 "Target rejected architecture\n");
2298 /* Is this a pre-existing architecture (as determined by already
2299 being initialized)? Move it to the front of the architecture
2300 list (keeping the list sorted Most Recently Used). */
2301 if (new_gdbarch->initialized_p)
2303 struct gdbarch_list **list;
2304 struct gdbarch_list *this;
2306 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2307 "Previous architecture %s (%s) selected\n",
2308 host_address_to_string (new_gdbarch),
2309 new_gdbarch->bfd_arch_info->printable_name);
2310 /* Find the existing arch in the list. */
2311 for (list = ®o->arches;
2312 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2313 list = &(*list)->next);
2314 /* It had better be in the list of architectures. */
2315 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2318 (*list) = this->next;
2319 /* Insert THIS at the front. */
2320 this->next = rego->arches;
2321 rego->arches = this;
2326 /* It's a new architecture. */
2328 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2329 "New architecture %s (%s) selected\n",
2330 host_address_to_string (new_gdbarch),
2331 new_gdbarch->bfd_arch_info->printable_name);
2333 /* Insert the new architecture into the front of the architecture
2334 list (keep the list sorted Most Recently Used). */
2336 struct gdbarch_list *this = XNEW (struct gdbarch_list);
2337 this->next = rego->arches;
2338 this->gdbarch = new_gdbarch;
2339 rego->arches = this;
2342 /* Check that the newly installed architecture is valid. Plug in
2343 any post init values. */
2344 new_gdbarch->dump_tdep = rego->dump_tdep;
2345 verify_gdbarch (new_gdbarch);
2346 new_gdbarch->initialized_p = 1;
2349 gdbarch_dump (new_gdbarch, gdb_stdlog);
2354 /* Make the specified architecture current. */
2357 set_target_gdbarch (struct gdbarch *new_gdbarch)
2359 gdb_assert (new_gdbarch != NULL);
2360 gdb_assert (new_gdbarch->initialized_p);
2361 current_inferior ()->gdbarch = new_gdbarch;
2362 observer_notify_architecture_changed (new_gdbarch);
2363 registers_changed ();
2366 /* Return the current inferior's arch. */
2369 target_gdbarch (void)
2371 return current_inferior ()->gdbarch;
2374 extern void _initialize_gdbarch (void);
2377 _initialize_gdbarch (void)
2379 add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2380 Set architecture debugging."), _("\\
2381 Show architecture debugging."), _("\\
2382 When non-zero, architecture debugging is enabled."),
2385 &setdebuglist, &showdebuglist);
2391 #../move-if-change new-gdbarch.c gdbarch.c
2392 compare_new gdbarch.c