3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998-2016 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 # Return -1 for bad REGNUM. Note: Several targets get this wrong.
465 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
466 m:const char *:register_name:int regnr:regnr::0
468 # Return the type of a register specified by the architecture. Only
469 # the register cache should call this function directly; others should
470 # use "register_type".
471 M:struct type *:register_type:int reg_nr:reg_nr
473 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
474 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
475 # deprecated_fp_regnum.
476 v:int:deprecated_fp_regnum:::-1:-1::0
478 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
479 v:int:call_dummy_location::::AT_ENTRY_POINT::0
480 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
482 m:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all::default_print_registers_info::0
483 m:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args::default_print_float_info::0
484 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
485 # MAP a GDB RAW register number onto a simulator register number. See
486 # also include/...-sim.h.
487 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
488 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
489 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
491 # Determine the address where a longjmp will land and save this address
492 # in PC. Return nonzero on success.
494 # FRAME corresponds to the longjmp frame.
495 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
498 v:int:believe_pcc_promotion:::::::
500 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
501 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
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_ID, 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 m:struct value *:value_from_register:struct type *type, int regnum, struct frame_id frame_id:type, regnum, frame_id::default_value_from_register::0
509 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
510 m: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 # Return the return-value convention that will be used by FUNCTION
514 # to return a value of type VALTYPE. FUNCTION may be NULL in which
515 # case the return convention is computed based only on VALTYPE.
517 # If READBUF is not NULL, extract the return value and save it in this buffer.
519 # If WRITEBUF is not NULL, it contains a return value which will be
520 # stored into the appropriate register. This can be used when we want
521 # to force the value returned by a function (see the "return" command
523 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
525 # Return true if the return value of function is stored in the first hidden
526 # parameter. In theory, this feature should be language-dependent, specified
527 # by language and its ABI, such as C++. Unfortunately, compiler may
528 # implement it to a target-dependent feature. So that we need such hook here
529 # to be aware of this in GDB.
530 m:int:return_in_first_hidden_param_p:struct type *type:type::default_return_in_first_hidden_param_p::0
532 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
533 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
534 # On some platforms, a single function may provide multiple entry points,
535 # e.g. one that is used for function-pointer calls and a different one
536 # that is used for direct function calls.
537 # In order to ensure that breakpoints set on the function will trigger
538 # no matter via which entry point the function is entered, a platform
539 # may provide the skip_entrypoint callback. It is called with IP set
540 # to the main entry point of a function (as determined by the symbol table),
541 # and should return the address of the innermost entry point, where the
542 # actual breakpoint needs to be set. Note that skip_entrypoint is used
543 # by GDB common code even when debugging optimized code, where skip_prologue
545 M:CORE_ADDR:skip_entrypoint:CORE_ADDR ip:ip
547 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
548 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
549 # Return the adjusted address and kind to use for Z0/Z1 packets.
550 # KIND is usually the memory length of the breakpoint, but may have a
551 # different target-specific meaning.
552 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
553 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
554 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
555 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
556 v:CORE_ADDR:decr_pc_after_break:::0:::0
558 # A function can be addressed by either it's "pointer" (possibly a
559 # descriptor address) or "entry point" (first executable instruction).
560 # The method "convert_from_func_ptr_addr" converting the former to the
561 # latter. gdbarch_deprecated_function_start_offset is being used to implement
562 # a simplified subset of that functionality - the function's address
563 # corresponds to the "function pointer" and the function's start
564 # corresponds to the "function entry point" - and hence is redundant.
566 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
568 # Return the remote protocol register number associated with this
569 # register. Normally the identity mapping.
570 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
572 # Fetch the target specific address used to represent a load module.
573 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
575 v:CORE_ADDR:frame_args_skip:::0:::0
576 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
577 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
578 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
579 # frame-base. Enable frame-base before frame-unwind.
580 F:int:frame_num_args:struct frame_info *frame:frame
582 M:CORE_ADDR:frame_align:CORE_ADDR address:address
583 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
584 v:int:frame_red_zone_size
586 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
587 # On some machines there are bits in addresses which are not really
588 # part of the address, but are used by the kernel, the hardware, etc.
589 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
590 # we get a "real" address such as one would find in a symbol table.
591 # This is used only for addresses of instructions, and even then I'm
592 # not sure it's used in all contexts. It exists to deal with there
593 # being a few stray bits in the PC which would mislead us, not as some
594 # sort of generic thing to handle alignment or segmentation (it's
595 # possible it should be in TARGET_READ_PC instead).
596 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
598 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
599 # indicates if the target needs software single step. An ISA method to
602 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
603 # breakpoints using the breakpoint system instead of blatting memory directly
606 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
607 # target can single step. If not, then implement single step using breakpoints.
609 # A return value of 1 means that the software_single_step breakpoints
610 # were inserted; 0 means they were not.
611 F:int:software_single_step:struct frame_info *frame:frame
613 # Return non-zero if the processor is executing a delay slot and a
614 # further single-step is needed before the instruction finishes.
615 M:int:single_step_through_delay:struct frame_info *frame:frame
616 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
617 # disassembler. Perhaps objdump can handle it?
618 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
619 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
622 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
623 # evaluates non-zero, this is the address where the debugger will place
624 # a step-resume breakpoint to get us past the dynamic linker.
625 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
626 # Some systems also have trampoline code for returning from shared libs.
627 m:int:in_solib_return_trampoline:CORE_ADDR pc, const char *name:pc, name::generic_in_solib_return_trampoline::0
629 # A target might have problems with watchpoints as soon as the stack
630 # frame of the current function has been destroyed. This mostly happens
631 # as the first action in a function's epilogue. stack_frame_destroyed_p()
632 # is defined to return a non-zero value if either the given addr is one
633 # instruction after the stack destroying instruction up to the trailing
634 # return instruction or if we can figure out that the stack frame has
635 # already been invalidated regardless of the value of addr. Targets
636 # which don't suffer from that problem could just let this functionality
638 m:int:stack_frame_destroyed_p:CORE_ADDR addr:addr:0:generic_stack_frame_destroyed_p::0
639 # Process an ELF symbol in the minimal symbol table in a backend-specific
640 # way. Normally this hook is supposed to do nothing, however if required,
641 # then this hook can be used to apply tranformations to symbols that are
642 # considered special in some way. For example the MIPS backend uses it
643 # to interpret \`st_other' information to mark compressed code symbols so
644 # that they can be treated in the appropriate manner in the processing of
645 # the main symbol table and DWARF-2 records.
646 F:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym
647 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
648 # Process a symbol in the main symbol table in a backend-specific way.
649 # Normally this hook is supposed to do nothing, however if required,
650 # then this hook can be used to apply tranformations to symbols that
651 # are considered special in some way. This is currently used by the
652 # MIPS backend to make sure compressed code symbols have the ISA bit
653 # set. This in turn is needed for symbol values seen in GDB to match
654 # the values used at the runtime by the program itself, for function
655 # and label references.
656 f:void:make_symbol_special:struct symbol *sym, struct objfile *objfile:sym, objfile::default_make_symbol_special::0
657 # Adjust the address retrieved from a DWARF-2 record other than a line
658 # entry in a backend-specific way. Normally this hook is supposed to
659 # return the address passed unchanged, however if that is incorrect for
660 # any reason, then this hook can be used to fix the address up in the
661 # required manner. This is currently used by the MIPS backend to make
662 # sure addresses in FDE, range records, etc. referring to compressed
663 # code have the ISA bit set, matching line information and the symbol
665 f:CORE_ADDR:adjust_dwarf2_addr:CORE_ADDR pc:pc::default_adjust_dwarf2_addr::0
666 # Adjust the address updated by a line entry in a backend-specific way.
667 # Normally this hook is supposed to return the address passed unchanged,
668 # however in the case of inconsistencies in these records, this hook can
669 # be used to fix them up in the required manner. This is currently used
670 # by the MIPS backend to make sure all line addresses in compressed code
671 # are presented with the ISA bit set, which is not always the case. This
672 # in turn ensures breakpoint addresses are correctly matched against the
674 f:CORE_ADDR:adjust_dwarf2_line:CORE_ADDR addr, int rel:addr, rel::default_adjust_dwarf2_line::0
675 v:int:cannot_step_breakpoint:::0:0::0
676 v:int:have_nonsteppable_watchpoint:::0:0::0
677 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
678 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
680 # Return the appropriate type_flags for the supplied address class.
681 # This function should return 1 if the address class was recognized and
682 # type_flags was set, zero otherwise.
683 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
684 # Is a register in a group
685 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
686 # Fetch the pointer to the ith function argument.
687 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
689 # Iterate over all supported register notes in a core file. For each
690 # supported register note section, the iterator must call CB and pass
691 # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
692 # the supported register note sections based on the current register
693 # values. Otherwise it should enumerate all supported register note
695 M:void:iterate_over_regset_sections:iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache:cb, cb_data, regcache
697 # Create core file notes
698 M:char *:make_corefile_notes:bfd *obfd, int *note_size:obfd, note_size
700 # The elfcore writer hook to use to write Linux prpsinfo notes to core
701 # files. Most Linux architectures use the same prpsinfo32 or
702 # prpsinfo64 layouts, and so won't need to provide this hook, as we
703 # call the Linux generic routines in bfd to write prpsinfo notes by
705 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
707 # Find core file memory regions
708 M:int:find_memory_regions:find_memory_region_ftype func, void *data:func, data
710 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
711 # core file into buffer READBUF with length LEN. Return the number of bytes read
712 # (zero indicates failure).
713 # failed, otherwise, return the red length of READBUF.
714 M:ULONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
716 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
717 # libraries list from core file into buffer READBUF with length LEN.
718 # Return the number of bytes read (zero indicates failure).
719 M:ULONGEST:core_xfer_shared_libraries_aix:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
721 # How the core target converts a PTID from a core file to a string.
722 M:char *:core_pid_to_str:ptid_t ptid:ptid
724 # How the core target extracts the name of a thread from a core file.
725 M:const char *:core_thread_name:struct thread_info *thr:thr
727 # BFD target to use when generating a core file.
728 V:const char *:gcore_bfd_target:::0:0:::pstring (gdbarch->gcore_bfd_target)
730 # If the elements of C++ vtables are in-place function descriptors rather
731 # than normal function pointers (which may point to code or a descriptor),
733 v:int:vtable_function_descriptors:::0:0::0
735 # Set if the least significant bit of the delta is used instead of the least
736 # significant bit of the pfn for pointers to virtual member functions.
737 v:int:vbit_in_delta:::0:0::0
739 # Advance PC to next instruction in order to skip a permanent breakpoint.
740 f:void:skip_permanent_breakpoint:struct regcache *regcache:regcache:default_skip_permanent_breakpoint:default_skip_permanent_breakpoint::0
742 # The maximum length of an instruction on this architecture in bytes.
743 V:ULONGEST:max_insn_length:::0:0
745 # Copy the instruction at FROM to TO, and make any adjustments
746 # necessary to single-step it at that address.
748 # REGS holds the state the thread's registers will have before
749 # executing the copied instruction; the PC in REGS will refer to FROM,
750 # not the copy at TO. The caller should update it to point at TO later.
752 # Return a pointer to data of the architecture's choice to be passed
753 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
754 # the instruction's effects have been completely simulated, with the
755 # resulting state written back to REGS.
757 # For a general explanation of displaced stepping and how GDB uses it,
758 # see the comments in infrun.c.
760 # The TO area is only guaranteed to have space for
761 # gdbarch_max_insn_length (arch) bytes, so this function must not
762 # write more bytes than that to that area.
764 # If you do not provide this function, GDB assumes that the
765 # architecture does not support displaced stepping.
767 # If your architecture doesn't need to adjust instructions before
768 # single-stepping them, consider using simple_displaced_step_copy_insn
771 # If the instruction cannot execute out of line, return NULL. The
772 # core falls back to stepping past the instruction in-line instead in
774 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
776 # Return true if GDB should use hardware single-stepping to execute
777 # the displaced instruction identified by CLOSURE. If false,
778 # GDB will simply restart execution at the displaced instruction
779 # location, and it is up to the target to ensure GDB will receive
780 # control again (e.g. by placing a software breakpoint instruction
781 # into the displaced instruction buffer).
783 # The default implementation returns false on all targets that
784 # provide a gdbarch_software_single_step routine, and true otherwise.
785 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
787 # Fix up the state resulting from successfully single-stepping a
788 # displaced instruction, to give the result we would have gotten from
789 # stepping the instruction in its original location.
791 # REGS is the register state resulting from single-stepping the
792 # displaced instruction.
794 # CLOSURE is the result from the matching call to
795 # gdbarch_displaced_step_copy_insn.
797 # If you provide gdbarch_displaced_step_copy_insn.but not this
798 # function, then GDB assumes that no fixup is needed after
799 # single-stepping the instruction.
801 # For a general explanation of displaced stepping and how GDB uses it,
802 # see the comments in infrun.c.
803 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
805 # Free a closure returned by gdbarch_displaced_step_copy_insn.
807 # If you provide gdbarch_displaced_step_copy_insn, you must provide
808 # this function as well.
810 # If your architecture uses closures that don't need to be freed, then
811 # you can use simple_displaced_step_free_closure here.
813 # For a general explanation of displaced stepping and how GDB uses it,
814 # see the comments in infrun.c.
815 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
817 # Return the address of an appropriate place to put displaced
818 # instructions while we step over them. There need only be one such
819 # place, since we're only stepping one thread over a breakpoint at a
822 # For a general explanation of displaced stepping and how GDB uses it,
823 # see the comments in infrun.c.
824 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
826 # Relocate an instruction to execute at a different address. OLDLOC
827 # is the address in the inferior memory where the instruction to
828 # relocate is currently at. On input, TO points to the destination
829 # where we want the instruction to be copied (and possibly adjusted)
830 # to. On output, it points to one past the end of the resulting
831 # instruction(s). The effect of executing the instruction at TO shall
832 # be the same as if executing it at FROM. For example, call
833 # instructions that implicitly push the return address on the stack
834 # should be adjusted to return to the instruction after OLDLOC;
835 # relative branches, and other PC-relative instructions need the
836 # offset adjusted; etc.
837 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
839 # Refresh overlay mapped state for section OSECT.
840 F:void:overlay_update:struct obj_section *osect:osect
842 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
844 # Handle special encoding of static variables in stabs debug info.
845 F:const char *:static_transform_name:const char *name:name
846 # Set if the address in N_SO or N_FUN stabs may be zero.
847 v:int:sofun_address_maybe_missing:::0:0::0
849 # Parse the instruction at ADDR storing in the record execution log
850 # the registers REGCACHE and memory ranges that will be affected when
851 # the instruction executes, along with their current values.
852 # Return -1 if something goes wrong, 0 otherwise.
853 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
855 # Save process state after a signal.
856 # Return -1 if something goes wrong, 0 otherwise.
857 M:int:process_record_signal:struct regcache *regcache, enum gdb_signal signal:regcache, signal
859 # Signal translation: translate inferior's signal (target's) number
860 # into GDB's representation. The implementation of this method must
861 # be host independent. IOW, don't rely on symbols of the NAT_FILE
862 # header (the nm-*.h files), the host <signal.h> header, or similar
863 # headers. This is mainly used when cross-debugging core files ---
864 # "Live" targets hide the translation behind the target interface
865 # (target_wait, target_resume, etc.).
866 M:enum gdb_signal:gdb_signal_from_target:int signo:signo
868 # Signal translation: translate the GDB's internal signal number into
869 # the inferior's signal (target's) representation. The implementation
870 # of this method must be host independent. IOW, don't rely on symbols
871 # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
872 # header, or similar headers.
873 # Return the target signal number if found, or -1 if the GDB internal
874 # signal number is invalid.
875 M:int:gdb_signal_to_target:enum gdb_signal signal:signal
877 # Extra signal info inspection.
879 # Return a type suitable to inspect extra signal information.
880 M:struct type *:get_siginfo_type:void:
882 # Record architecture-specific information from the symbol table.
883 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
885 # Function for the 'catch syscall' feature.
887 # Get architecture-specific system calls information from registers.
888 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
890 # The filename of the XML syscall for this architecture.
891 v:const char *:xml_syscall_file:::0:0::0:pstring (gdbarch->xml_syscall_file)
893 # Information about system calls from this architecture
894 v:struct syscalls_info *:syscalls_info:::0:0::0:host_address_to_string (gdbarch->syscalls_info)
896 # SystemTap related fields and functions.
898 # A NULL-terminated array of prefixes used to mark an integer constant
899 # on the architecture's assembly.
900 # For example, on x86 integer constants are written as:
902 # \$10 ;; integer constant 10
904 # in this case, this prefix would be the character \`\$\'.
905 v:const char *const *:stap_integer_prefixes:::0:0::0:pstring_list (gdbarch->stap_integer_prefixes)
907 # A NULL-terminated array of suffixes used to mark an integer constant
908 # on the architecture's assembly.
909 v:const char *const *:stap_integer_suffixes:::0:0::0:pstring_list (gdbarch->stap_integer_suffixes)
911 # A NULL-terminated array of prefixes used to mark a register name on
912 # the architecture's assembly.
913 # For example, on x86 the register name is written as:
915 # \%eax ;; register eax
917 # in this case, this prefix would be the character \`\%\'.
918 v:const char *const *:stap_register_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_prefixes)
920 # A NULL-terminated array of suffixes used to mark a register name on
921 # the architecture's assembly.
922 v:const char *const *:stap_register_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_suffixes)
924 # A NULL-terminated array of prefixes used to mark a register
925 # indirection on the architecture's assembly.
926 # For example, on x86 the register indirection is written as:
928 # \(\%eax\) ;; indirecting eax
930 # in this case, this prefix would be the charater \`\(\'.
932 # Please note that we use the indirection prefix also for register
933 # displacement, e.g., \`4\(\%eax\)\' on x86.
934 v:const char *const *:stap_register_indirection_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_prefixes)
936 # A NULL-terminated array of suffixes used to mark a register
937 # indirection on the architecture's assembly.
938 # For example, on x86 the register indirection is written as:
940 # \(\%eax\) ;; indirecting eax
942 # in this case, this prefix would be the charater \`\)\'.
944 # Please note that we use the indirection suffix also for register
945 # displacement, e.g., \`4\(\%eax\)\' on x86.
946 v:const char *const *:stap_register_indirection_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_suffixes)
948 # Prefix(es) used to name a register using GDB's nomenclature.
950 # For example, on PPC a register is represented by a number in the assembly
951 # language (e.g., \`10\' is the 10th general-purpose register). However,
952 # inside GDB this same register has an \`r\' appended to its name, so the 10th
953 # register would be represented as \`r10\' internally.
954 v:const char *:stap_gdb_register_prefix:::0:0::0:pstring (gdbarch->stap_gdb_register_prefix)
956 # Suffix used to name a register using GDB's nomenclature.
957 v:const char *:stap_gdb_register_suffix:::0:0::0:pstring (gdbarch->stap_gdb_register_suffix)
959 # Check if S is a single operand.
961 # Single operands can be:
962 # \- Literal integers, e.g. \`\$10\' on x86
963 # \- Register access, e.g. \`\%eax\' on x86
964 # \- Register indirection, e.g. \`\(\%eax\)\' on x86
965 # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
967 # This function should check for these patterns on the string
968 # and return 1 if some were found, or zero otherwise. Please try to match
969 # as much info as you can from the string, i.e., if you have to match
970 # something like \`\(\%\', do not match just the \`\(\'.
971 M:int:stap_is_single_operand:const char *s:s
973 # Function used to handle a "special case" in the parser.
975 # A "special case" is considered to be an unknown token, i.e., a token
976 # that the parser does not know how to parse. A good example of special
977 # case would be ARM's register displacement syntax:
979 # [R0, #4] ;; displacing R0 by 4
981 # Since the parser assumes that a register displacement is of the form:
983 # <number> <indirection_prefix> <register_name> <indirection_suffix>
985 # it means that it will not be able to recognize and parse this odd syntax.
986 # Therefore, we should add a special case function that will handle this token.
988 # This function should generate the proper expression form of the expression
989 # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
990 # and so on). It should also return 1 if the parsing was successful, or zero
991 # if the token was not recognized as a special token (in this case, returning
992 # zero means that the special parser is deferring the parsing to the generic
993 # parser), and should advance the buffer pointer (p->arg).
994 M:int:stap_parse_special_token:struct stap_parse_info *p:p
996 # DTrace related functions.
998 # The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1000 M:void:dtrace_parse_probe_argument:struct parser_state *pstate, int narg:pstate, narg
1002 # True if the given ADDR does not contain the instruction sequence
1003 # corresponding to a disabled DTrace is-enabled probe.
1004 M:int:dtrace_probe_is_enabled:CORE_ADDR addr:addr
1006 # Enable a DTrace is-enabled probe at ADDR.
1007 M:void:dtrace_enable_probe:CORE_ADDR addr:addr
1009 # Disable a DTrace is-enabled probe at ADDR.
1010 M:void:dtrace_disable_probe:CORE_ADDR addr:addr
1012 # True if the list of shared libraries is one and only for all
1013 # processes, as opposed to a list of shared libraries per inferior.
1014 # This usually means that all processes, although may or may not share
1015 # an address space, will see the same set of symbols at the same
1017 v:int:has_global_solist:::0:0::0
1019 # On some targets, even though each inferior has its own private
1020 # address space, the debug interface takes care of making breakpoints
1021 # visible to all address spaces automatically. For such cases,
1022 # this property should be set to true.
1023 v:int:has_global_breakpoints:::0:0::0
1025 # True if inferiors share an address space (e.g., uClinux).
1026 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
1028 # True if a fast tracepoint can be set at an address.
1029 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, char **msg:addr, msg::default_fast_tracepoint_valid_at::0
1031 # Return the "auto" target charset.
1032 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
1033 # Return the "auto" target wide charset.
1034 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
1036 # If non-empty, this is a file extension that will be opened in place
1037 # of the file extension reported by the shared library list.
1039 # This is most useful for toolchains that use a post-linker tool,
1040 # where the names of the files run on the target differ in extension
1041 # compared to the names of the files GDB should load for debug info.
1042 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
1044 # If true, the target OS has DOS-based file system semantics. That
1045 # is, absolute paths include a drive name, and the backslash is
1046 # considered a directory separator.
1047 v:int:has_dos_based_file_system:::0:0::0
1049 # Generate bytecodes to collect the return address in a frame.
1050 # Since the bytecodes run on the target, possibly with GDB not even
1051 # connected, the full unwinding machinery is not available, and
1052 # typically this function will issue bytecodes for one or more likely
1053 # places that the return address may be found.
1054 m:void:gen_return_address:struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope:ax, value, scope::default_gen_return_address::0
1056 # Implement the "info proc" command.
1057 M:void:info_proc:const char *args, enum info_proc_what what:args, what
1059 # Implement the "info proc" command for core files. Noe that there
1060 # are two "info_proc"-like methods on gdbarch -- one for core files,
1061 # one for live targets.
1062 M:void:core_info_proc:const char *args, enum info_proc_what what:args, what
1064 # Iterate over all objfiles in the order that makes the most sense
1065 # for the architecture to make global symbol searches.
1067 # CB is a callback function where OBJFILE is the objfile to be searched,
1068 # and CB_DATA a pointer to user-defined data (the same data that is passed
1069 # when calling this gdbarch method). The iteration stops if this function
1072 # CB_DATA is a pointer to some user-defined data to be passed to
1075 # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1076 # inspected when the symbol search was requested.
1077 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
1079 # Ravenscar arch-dependent ops.
1080 v:struct ravenscar_arch_ops *:ravenscar_ops:::NULL:NULL::0:host_address_to_string (gdbarch->ravenscar_ops)
1082 # Return non-zero if the instruction at ADDR is a call; zero otherwise.
1083 m:int:insn_is_call:CORE_ADDR addr:addr::default_insn_is_call::0
1085 # Return non-zero if the instruction at ADDR is a return; zero otherwise.
1086 m:int:insn_is_ret:CORE_ADDR addr:addr::default_insn_is_ret::0
1088 # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
1089 m:int:insn_is_jump:CORE_ADDR addr:addr::default_insn_is_jump::0
1091 # Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1092 # Return 0 if *READPTR is already at the end of the buffer.
1093 # Return -1 if there is insufficient buffer for a whole entry.
1094 # Return 1 if an entry was read into *TYPEP and *VALP.
1095 M:int:auxv_parse:gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp:readptr, endptr, typep, valp
1097 # Find the address range of the current inferior's vsyscall/vDSO, and
1098 # write it to *RANGE. If the vsyscall's length can't be determined, a
1099 # range with zero length is returned. Returns true if the vsyscall is
1100 # found, false otherwise.
1101 m:int:vsyscall_range:struct mem_range *range:range::default_vsyscall_range::0
1103 # Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1104 # PROT has GDB_MMAP_PROT_* bitmask format.
1105 # Throw an error if it is not possible. Returned address is always valid.
1106 f:CORE_ADDR:infcall_mmap:CORE_ADDR size, unsigned prot:size, prot::default_infcall_mmap::0
1108 # Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1109 # Print a warning if it is not possible.
1110 f:void:infcall_munmap:CORE_ADDR addr, CORE_ADDR size:addr, size::default_infcall_munmap::0
1112 # Return string (caller has to use xfree for it) with options for GCC
1113 # to produce code for this target, typically "-m64", "-m32" or "-m31".
1114 # These options are put before CU's DW_AT_producer compilation options so that
1115 # they can override it. Method may also return NULL.
1116 m:char *:gcc_target_options:void:::default_gcc_target_options::0
1118 # Return a regular expression that matches names used by this
1119 # architecture in GNU configury triplets. The result is statically
1120 # allocated and must not be freed. The default implementation simply
1121 # returns the BFD architecture name, which is correct in nearly every
1123 m:const char *:gnu_triplet_regexp:void:::default_gnu_triplet_regexp::0
1125 # Return the size in 8-bit bytes of an addressable memory unit on this
1126 # architecture. This corresponds to the number of 8-bit bytes associated to
1127 # each address in memory.
1128 m:int:addressable_memory_unit_size:void:::default_addressable_memory_unit_size::0
1136 exec > new-gdbarch.log
1137 function_list |
while do_read
1140 ${class} ${returntype} ${function} ($formal)
1144 eval echo \"\ \ \ \
${r}=\
${${r}}\"
1146 if class_is_predicate_p
&& fallback_default_p
1148 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
1152 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
1154 echo "Error: postdefault is useless when invalid_p=0" 1>&2
1158 if class_is_multiarch_p
1160 if class_is_predicate_p
; then :
1161 elif test "x${predefault}" = "x"
1163 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
1172 compare_new gdbarch.log
1178 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
1181 /* Dynamic architecture support for GDB, the GNU debugger.
1183 Copyright (C) 1998-2016 Free Software Foundation, Inc.
1185 This file is part of GDB.
1187 This program is free software; you can redistribute it and/or modify
1188 it under the terms of the GNU General Public License as published by
1189 the Free Software Foundation; either version 3 of the License, or
1190 (at your option) any later version.
1192 This program is distributed in the hope that it will be useful,
1193 but WITHOUT ANY WARRANTY; without even the implied warranty of
1194 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1195 GNU General Public License for more details.
1197 You should have received a copy of the GNU General Public License
1198 along with this program. If not, see <http://www.gnu.org/licenses/>. */
1200 /* This file was created with the aid of \`\`gdbarch.sh''.
1202 The Bourne shell script \`\`gdbarch.sh'' creates the files
1203 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
1204 against the existing \`\`gdbarch.[hc]''. Any differences found
1207 If editing this file, please also run gdbarch.sh and merge any
1208 changes into that script. Conversely, when making sweeping changes
1209 to this file, modifying gdbarch.sh and using its output may prove
1219 exec > new-gdbarch.h
1232 struct minimal_symbol;
1236 struct disassemble_info;
1239 struct bp_target_info;
1243 struct displaced_step_closure;
1247 struct stap_parse_info;
1248 struct parser_state;
1249 struct ravenscar_arch_ops;
1250 struct elf_internal_linux_prpsinfo;
1252 struct syscalls_info;
1255 #include "regcache.h"
1257 /* The architecture associated with the inferior through the
1258 connection to the target.
1260 The architecture vector provides some information that is really a
1261 property of the inferior, accessed through a particular target:
1262 ptrace operations; the layout of certain RSP packets; the solib_ops
1263 vector; etc. To differentiate architecture accesses to
1264 per-inferior/target properties from
1265 per-thread/per-frame/per-objfile properties, accesses to
1266 per-inferior/target properties should be made through this
1269 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
1270 extern struct gdbarch *target_gdbarch (void);
1272 /* Callback type for the 'iterate_over_objfiles_in_search_order'
1275 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
1276 (struct objfile *objfile, void *cb_data);
1278 /* Callback type for regset section iterators. The callback usually
1279 invokes the REGSET's supply or collect method, to which it must
1280 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
1281 section name, and HUMAN_NAME is used for diagnostic messages.
1282 CB_DATA should have been passed unchanged through the iterator. */
1284 typedef void (iterate_over_regset_sections_cb)
1285 (const char *sect_name, int size, const struct regset *regset,
1286 const char *human_name, void *cb_data);
1289 # function typedef's
1292 printf "/* The following are pre-initialized by GDBARCH. */\n"
1293 function_list |
while do_read
1298 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1299 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
1303 # function typedef's
1306 printf "/* The following are initialized by the target dependent code. */\n"
1307 function_list |
while do_read
1309 if [ -n "${comment}" ]
1311 echo "${comment}" |
sed \
1317 if class_is_predicate_p
1320 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1322 if class_is_variable_p
1325 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1326 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1328 if class_is_function_p
1331 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1333 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1334 elif class_is_multiarch_p
1336 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1338 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1340 if [ "x${formal}" = "xvoid" ]
1342 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1344 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1346 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1353 /* Definition for an unknown syscall, used basically in error-cases. */
1354 #define UNKNOWN_SYSCALL (-1)
1356 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1359 /* Mechanism for co-ordinating the selection of a specific
1362 GDB targets (*-tdep.c) can register an interest in a specific
1363 architecture. Other GDB components can register a need to maintain
1364 per-architecture data.
1366 The mechanisms below ensures that there is only a loose connection
1367 between the set-architecture command and the various GDB
1368 components. Each component can independently register their need
1369 to maintain architecture specific data with gdbarch.
1373 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1376 The more traditional mega-struct containing architecture specific
1377 data for all the various GDB components was also considered. Since
1378 GDB is built from a variable number of (fairly independent)
1379 components it was determined that the global aproach was not
1383 /* Register a new architectural family with GDB.
1385 Register support for the specified ARCHITECTURE with GDB. When
1386 gdbarch determines that the specified architecture has been
1387 selected, the corresponding INIT function is called.
1391 The INIT function takes two parameters: INFO which contains the
1392 information available to gdbarch about the (possibly new)
1393 architecture; ARCHES which is a list of the previously created
1394 \`\`struct gdbarch'' for this architecture.
1396 The INFO parameter is, as far as possible, be pre-initialized with
1397 information obtained from INFO.ABFD or the global defaults.
1399 The ARCHES parameter is a linked list (sorted most recently used)
1400 of all the previously created architures for this architecture
1401 family. The (possibly NULL) ARCHES->gdbarch can used to access
1402 values from the previously selected architecture for this
1403 architecture family.
1405 The INIT function shall return any of: NULL - indicating that it
1406 doesn't recognize the selected architecture; an existing \`\`struct
1407 gdbarch'' from the ARCHES list - indicating that the new
1408 architecture is just a synonym for an earlier architecture (see
1409 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1410 - that describes the selected architecture (see gdbarch_alloc()).
1412 The DUMP_TDEP function shall print out all target specific values.
1413 Care should be taken to ensure that the function works in both the
1414 multi-arch and non- multi-arch cases. */
1418 struct gdbarch *gdbarch;
1419 struct gdbarch_list *next;
1424 /* Use default: NULL (ZERO). */
1425 const struct bfd_arch_info *bfd_arch_info;
1427 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1428 enum bfd_endian byte_order;
1430 enum bfd_endian byte_order_for_code;
1432 /* Use default: NULL (ZERO). */
1435 /* Use default: NULL (ZERO). */
1438 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1439 enum gdb_osabi osabi;
1441 /* Use default: NULL (ZERO). */
1442 const struct target_desc *target_desc;
1445 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1446 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1448 /* DEPRECATED - use gdbarch_register() */
1449 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1451 extern void gdbarch_register (enum bfd_architecture architecture,
1452 gdbarch_init_ftype *,
1453 gdbarch_dump_tdep_ftype *);
1456 /* Return a freshly allocated, NULL terminated, array of the valid
1457 architecture names. Since architectures are registered during the
1458 _initialize phase this function only returns useful information
1459 once initialization has been completed. */
1461 extern const char **gdbarch_printable_names (void);
1464 /* Helper function. Search the list of ARCHES for a GDBARCH that
1465 matches the information provided by INFO. */
1467 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1470 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1471 basic initialization using values obtained from the INFO and TDEP
1472 parameters. set_gdbarch_*() functions are called to complete the
1473 initialization of the object. */
1475 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1478 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1479 It is assumed that the caller freeds the \`\`struct
1482 extern void gdbarch_free (struct gdbarch *);
1485 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1486 obstack. The memory is freed when the corresponding architecture
1489 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1490 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1491 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1493 /* Duplicate STRING, returning an equivalent string that's allocated on the
1494 obstack associated with GDBARCH. The string is freed when the corresponding
1495 architecture is also freed. */
1497 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1499 /* Helper function. Force an update of the current architecture.
1501 The actual architecture selected is determined by INFO, \`\`(gdb) set
1502 architecture'' et.al., the existing architecture and BFD's default
1503 architecture. INFO should be initialized to zero and then selected
1504 fields should be updated.
1506 Returns non-zero if the update succeeds. */
1508 extern int gdbarch_update_p (struct gdbarch_info info);
1511 /* Helper function. Find an architecture matching info.
1513 INFO should be initialized using gdbarch_info_init, relevant fields
1514 set, and then finished using gdbarch_info_fill.
1516 Returns the corresponding architecture, or NULL if no matching
1517 architecture was found. */
1519 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1522 /* Helper function. Set the target gdbarch to "gdbarch". */
1524 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1527 /* Register per-architecture data-pointer.
1529 Reserve space for a per-architecture data-pointer. An identifier
1530 for the reserved data-pointer is returned. That identifer should
1531 be saved in a local static variable.
1533 Memory for the per-architecture data shall be allocated using
1534 gdbarch_obstack_zalloc. That memory will be deleted when the
1535 corresponding architecture object is deleted.
1537 When a previously created architecture is re-selected, the
1538 per-architecture data-pointer for that previous architecture is
1539 restored. INIT() is not re-called.
1541 Multiple registrarants for any architecture are allowed (and
1542 strongly encouraged). */
1544 struct gdbarch_data;
1546 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1547 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1548 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1549 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1550 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1551 struct gdbarch_data *data,
1554 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1557 /* Set the dynamic target-system-dependent parameters (architecture,
1558 byte-order, ...) using information found in the BFD. */
1560 extern void set_gdbarch_from_file (bfd *);
1563 /* Initialize the current architecture to the "first" one we find on
1566 extern void initialize_current_architecture (void);
1568 /* gdbarch trace variable */
1569 extern unsigned int gdbarch_debug;
1571 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1576 #../move-if-change new-gdbarch.h gdbarch.h
1577 compare_new gdbarch.h
1584 exec > new-gdbarch.c
1589 #include "arch-utils.h"
1592 #include "inferior.h"
1595 #include "floatformat.h"
1596 #include "reggroups.h"
1598 #include "gdb_obstack.h"
1599 #include "observer.h"
1600 #include "regcache.h"
1601 #include "objfiles.h"
1603 /* Static function declarations */
1605 static void alloc_gdbarch_data (struct gdbarch *);
1607 /* Non-zero if we want to trace architecture code. */
1609 #ifndef GDBARCH_DEBUG
1610 #define GDBARCH_DEBUG 0
1612 unsigned int gdbarch_debug = GDBARCH_DEBUG;
1614 show_gdbarch_debug (struct ui_file *file, int from_tty,
1615 struct cmd_list_element *c, const char *value)
1617 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1621 pformat (const struct floatformat **format)
1626 /* Just print out one of them - this is only for diagnostics. */
1627 return format[0]->name;
1631 pstring (const char *string)
1638 /* Helper function to print a list of strings, represented as "const
1639 char *const *". The list is printed comma-separated. */
1642 pstring_list (const char *const *list)
1644 static char ret[100];
1645 const char *const *p;
1652 for (p = list; *p != NULL && offset < sizeof (ret); ++p)
1654 size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
1660 gdb_assert (offset - 2 < sizeof (ret));
1661 ret[offset - 2] = '\0';
1669 # gdbarch open the gdbarch object
1671 printf "/* Maintain the struct gdbarch object. */\n"
1673 printf "struct gdbarch\n"
1675 printf " /* Has this architecture been fully initialized? */\n"
1676 printf " int initialized_p;\n"
1678 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1679 printf " struct obstack *obstack;\n"
1681 printf " /* basic architectural information. */\n"
1682 function_list |
while do_read
1686 printf " ${returntype} ${function};\n"
1690 printf " /* target specific vector. */\n"
1691 printf " struct gdbarch_tdep *tdep;\n"
1692 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1694 printf " /* per-architecture data-pointers. */\n"
1695 printf " unsigned nr_data;\n"
1696 printf " void **data;\n"
1699 /* Multi-arch values.
1701 When extending this structure you must:
1703 Add the field below.
1705 Declare set/get functions and define the corresponding
1708 gdbarch_alloc(): If zero/NULL is not a suitable default,
1709 initialize the new field.
1711 verify_gdbarch(): Confirm that the target updated the field
1714 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1717 get_gdbarch(): Implement the set/get functions (probably using
1718 the macro's as shortcuts).
1723 function_list |
while do_read
1725 if class_is_variable_p
1727 printf " ${returntype} ${function};\n"
1728 elif class_is_function_p
1730 printf " gdbarch_${function}_ftype *${function};\n"
1735 # Create a new gdbarch struct
1738 /* Create a new \`\`struct gdbarch'' based on information provided by
1739 \`\`struct gdbarch_info''. */
1744 gdbarch_alloc (const struct gdbarch_info *info,
1745 struct gdbarch_tdep *tdep)
1747 struct gdbarch *gdbarch;
1749 /* Create an obstack for allocating all the per-architecture memory,
1750 then use that to allocate the architecture vector. */
1751 struct obstack *obstack = XNEW (struct obstack);
1752 obstack_init (obstack);
1753 gdbarch = XOBNEW (obstack, struct gdbarch);
1754 memset (gdbarch, 0, sizeof (*gdbarch));
1755 gdbarch->obstack = obstack;
1757 alloc_gdbarch_data (gdbarch);
1759 gdbarch->tdep = tdep;
1762 function_list |
while do_read
1766 printf " gdbarch->${function} = info->${function};\n"
1770 printf " /* Force the explicit initialization of these. */\n"
1771 function_list |
while do_read
1773 if class_is_function_p || class_is_variable_p
1775 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1777 printf " gdbarch->${function} = ${predefault};\n"
1782 /* gdbarch_alloc() */
1788 # Free a gdbarch struct.
1792 /* Allocate extra space using the per-architecture obstack. */
1795 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1797 void *data = obstack_alloc (arch->obstack, size);
1799 memset (data, 0, size);
1803 /* See gdbarch.h. */
1806 gdbarch_obstack_strdup (struct gdbarch *arch, const char *string)
1808 return obstack_strdup (arch->obstack, string);
1812 /* Free a gdbarch struct. This should never happen in normal
1813 operation --- once you've created a gdbarch, you keep it around.
1814 However, if an architecture's init function encounters an error
1815 building the structure, it may need to clean up a partially
1816 constructed gdbarch. */
1819 gdbarch_free (struct gdbarch *arch)
1821 struct obstack *obstack;
1823 gdb_assert (arch != NULL);
1824 gdb_assert (!arch->initialized_p);
1825 obstack = arch->obstack;
1826 obstack_free (obstack, 0); /* Includes the ARCH. */
1831 # verify a new architecture
1835 /* Ensure that all values in a GDBARCH are reasonable. */
1838 verify_gdbarch (struct gdbarch *gdbarch)
1840 struct ui_file *log;
1841 struct cleanup *cleanups;
1845 log = mem_fileopen ();
1846 cleanups = make_cleanup_ui_file_delete (log);
1848 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1849 fprintf_unfiltered (log, "\n\tbyte-order");
1850 if (gdbarch->bfd_arch_info == NULL)
1851 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1852 /* Check those that need to be defined for the given multi-arch level. */
1854 function_list |
while do_read
1856 if class_is_function_p || class_is_variable_p
1858 if [ "x${invalid_p}" = "x0" ]
1860 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1861 elif class_is_predicate_p
1863 printf " /* Skip verify of ${function}, has predicate. */\n"
1864 # FIXME: See do_read for potential simplification
1865 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1867 printf " if (${invalid_p})\n"
1868 printf " gdbarch->${function} = ${postdefault};\n"
1869 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1871 printf " if (gdbarch->${function} == ${predefault})\n"
1872 printf " gdbarch->${function} = ${postdefault};\n"
1873 elif [ -n "${postdefault}" ]
1875 printf " if (gdbarch->${function} == 0)\n"
1876 printf " gdbarch->${function} = ${postdefault};\n"
1877 elif [ -n "${invalid_p}" ]
1879 printf " if (${invalid_p})\n"
1880 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1881 elif [ -n "${predefault}" ]
1883 printf " if (gdbarch->${function} == ${predefault})\n"
1884 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1889 buf = ui_file_xstrdup (log, &length);
1890 make_cleanup (xfree, buf);
1892 internal_error (__FILE__, __LINE__,
1893 _("verify_gdbarch: the following are invalid ...%s"),
1895 do_cleanups (cleanups);
1899 # dump the structure
1903 /* Print out the details of the current architecture. */
1906 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1908 const char *gdb_nm_file = "<not-defined>";
1910 #if defined (GDB_NM_FILE)
1911 gdb_nm_file = GDB_NM_FILE;
1913 fprintf_unfiltered (file,
1914 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1917 function_list |
sort -t: -k 3 |
while do_read
1919 # First the predicate
1920 if class_is_predicate_p
1922 printf " fprintf_unfiltered (file,\n"
1923 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1924 printf " gdbarch_${function}_p (gdbarch));\n"
1926 # Print the corresponding value.
1927 if class_is_function_p
1929 printf " fprintf_unfiltered (file,\n"
1930 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1931 printf " host_address_to_string (gdbarch->${function}));\n"
1934 case "${print}:${returntype}" in
1937 print
="core_addr_to_string_nz (gdbarch->${function})"
1941 print
="plongest (gdbarch->${function})"
1947 printf " fprintf_unfiltered (file,\n"
1948 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1949 printf " ${print});\n"
1953 if (gdbarch->dump_tdep != NULL)
1954 gdbarch->dump_tdep (gdbarch, file);
1962 struct gdbarch_tdep *
1963 gdbarch_tdep (struct gdbarch *gdbarch)
1965 if (gdbarch_debug >= 2)
1966 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1967 return gdbarch->tdep;
1971 function_list |
while do_read
1973 if class_is_predicate_p
1977 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1979 printf " gdb_assert (gdbarch != NULL);\n"
1980 printf " return ${predicate};\n"
1983 if class_is_function_p
1986 printf "${returntype}\n"
1987 if [ "x${formal}" = "xvoid" ]
1989 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1991 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1994 printf " gdb_assert (gdbarch != NULL);\n"
1995 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1996 if class_is_predicate_p
&& test -n "${predefault}"
1998 # Allow a call to a function with a predicate.
1999 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
2001 printf " if (gdbarch_debug >= 2)\n"
2002 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2003 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
2005 if class_is_multiarch_p
2012 if class_is_multiarch_p
2014 params
="gdbarch, ${actual}"
2019 if [ "x${returntype}" = "xvoid" ]
2021 printf " gdbarch->${function} (${params});\n"
2023 printf " return gdbarch->${function} (${params});\n"
2028 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2029 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
2031 printf " gdbarch->${function} = ${function};\n"
2033 elif class_is_variable_p
2036 printf "${returntype}\n"
2037 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2039 printf " gdb_assert (gdbarch != NULL);\n"
2040 if [ "x${invalid_p}" = "x0" ]
2042 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
2043 elif [ -n "${invalid_p}" ]
2045 printf " /* Check variable is valid. */\n"
2046 printf " gdb_assert (!(${invalid_p}));\n"
2047 elif [ -n "${predefault}" ]
2049 printf " /* Check variable changed from pre-default. */\n"
2050 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
2052 printf " if (gdbarch_debug >= 2)\n"
2053 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2054 printf " return gdbarch->${function};\n"
2058 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2059 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
2061 printf " gdbarch->${function} = ${function};\n"
2063 elif class_is_info_p
2066 printf "${returntype}\n"
2067 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2069 printf " gdb_assert (gdbarch != NULL);\n"
2070 printf " if (gdbarch_debug >= 2)\n"
2071 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2072 printf " return gdbarch->${function};\n"
2077 # All the trailing guff
2081 /* Keep a registry of per-architecture data-pointers required by GDB
2088 gdbarch_data_pre_init_ftype *pre_init;
2089 gdbarch_data_post_init_ftype *post_init;
2092 struct gdbarch_data_registration
2094 struct gdbarch_data *data;
2095 struct gdbarch_data_registration *next;
2098 struct gdbarch_data_registry
2101 struct gdbarch_data_registration *registrations;
2104 struct gdbarch_data_registry gdbarch_data_registry =
2109 static struct gdbarch_data *
2110 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
2111 gdbarch_data_post_init_ftype *post_init)
2113 struct gdbarch_data_registration **curr;
2115 /* Append the new registration. */
2116 for (curr = &gdbarch_data_registry.registrations;
2118 curr = &(*curr)->next);
2119 (*curr) = XNEW (struct gdbarch_data_registration);
2120 (*curr)->next = NULL;
2121 (*curr)->data = XNEW (struct gdbarch_data);
2122 (*curr)->data->index = gdbarch_data_registry.nr++;
2123 (*curr)->data->pre_init = pre_init;
2124 (*curr)->data->post_init = post_init;
2125 (*curr)->data->init_p = 1;
2126 return (*curr)->data;
2129 struct gdbarch_data *
2130 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
2132 return gdbarch_data_register (pre_init, NULL);
2135 struct gdbarch_data *
2136 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
2138 return gdbarch_data_register (NULL, post_init);
2141 /* Create/delete the gdbarch data vector. */
2144 alloc_gdbarch_data (struct gdbarch *gdbarch)
2146 gdb_assert (gdbarch->data == NULL);
2147 gdbarch->nr_data = gdbarch_data_registry.nr;
2148 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
2151 /* Initialize the current value of the specified per-architecture
2155 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
2156 struct gdbarch_data *data,
2159 gdb_assert (data->index < gdbarch->nr_data);
2160 gdb_assert (gdbarch->data[data->index] == NULL);
2161 gdb_assert (data->pre_init == NULL);
2162 gdbarch->data[data->index] = pointer;
2165 /* Return the current value of the specified per-architecture
2169 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
2171 gdb_assert (data->index < gdbarch->nr_data);
2172 if (gdbarch->data[data->index] == NULL)
2174 /* The data-pointer isn't initialized, call init() to get a
2176 if (data->pre_init != NULL)
2177 /* Mid architecture creation: pass just the obstack, and not
2178 the entire architecture, as that way it isn't possible for
2179 pre-init code to refer to undefined architecture
2181 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
2182 else if (gdbarch->initialized_p
2183 && data->post_init != NULL)
2184 /* Post architecture creation: pass the entire architecture
2185 (as all fields are valid), but be careful to also detect
2186 recursive references. */
2188 gdb_assert (data->init_p);
2190 gdbarch->data[data->index] = data->post_init (gdbarch);
2194 /* The architecture initialization hasn't completed - punt -
2195 hope that the caller knows what they are doing. Once
2196 deprecated_set_gdbarch_data has been initialized, this can be
2197 changed to an internal error. */
2199 gdb_assert (gdbarch->data[data->index] != NULL);
2201 return gdbarch->data[data->index];
2205 /* Keep a registry of the architectures known by GDB. */
2207 struct gdbarch_registration
2209 enum bfd_architecture bfd_architecture;
2210 gdbarch_init_ftype *init;
2211 gdbarch_dump_tdep_ftype *dump_tdep;
2212 struct gdbarch_list *arches;
2213 struct gdbarch_registration *next;
2216 static struct gdbarch_registration *gdbarch_registry = NULL;
2219 append_name (const char ***buf, int *nr, const char *name)
2221 *buf = XRESIZEVEC (const char *, *buf, *nr + 1);
2227 gdbarch_printable_names (void)
2229 /* Accumulate a list of names based on the registed list of
2232 const char **arches = NULL;
2233 struct gdbarch_registration *rego;
2235 for (rego = gdbarch_registry;
2239 const struct bfd_arch_info *ap;
2240 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2242 internal_error (__FILE__, __LINE__,
2243 _("gdbarch_architecture_names: multi-arch unknown"));
2246 append_name (&arches, &nr_arches, ap->printable_name);
2251 append_name (&arches, &nr_arches, NULL);
2257 gdbarch_register (enum bfd_architecture bfd_architecture,
2258 gdbarch_init_ftype *init,
2259 gdbarch_dump_tdep_ftype *dump_tdep)
2261 struct gdbarch_registration **curr;
2262 const struct bfd_arch_info *bfd_arch_info;
2264 /* Check that BFD recognizes this architecture */
2265 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2266 if (bfd_arch_info == NULL)
2268 internal_error (__FILE__, __LINE__,
2269 _("gdbarch: Attempt to register "
2270 "unknown architecture (%d)"),
2273 /* Check that we haven't seen this architecture before. */
2274 for (curr = &gdbarch_registry;
2276 curr = &(*curr)->next)
2278 if (bfd_architecture == (*curr)->bfd_architecture)
2279 internal_error (__FILE__, __LINE__,
2280 _("gdbarch: Duplicate registration "
2281 "of architecture (%s)"),
2282 bfd_arch_info->printable_name);
2286 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
2287 bfd_arch_info->printable_name,
2288 host_address_to_string (init));
2290 (*curr) = XNEW (struct gdbarch_registration);
2291 (*curr)->bfd_architecture = bfd_architecture;
2292 (*curr)->init = init;
2293 (*curr)->dump_tdep = dump_tdep;
2294 (*curr)->arches = NULL;
2295 (*curr)->next = NULL;
2299 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2300 gdbarch_init_ftype *init)
2302 gdbarch_register (bfd_architecture, init, NULL);
2306 /* Look for an architecture using gdbarch_info. */
2308 struct gdbarch_list *
2309 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2310 const struct gdbarch_info *info)
2312 for (; arches != NULL; arches = arches->next)
2314 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2316 if (info->byte_order != arches->gdbarch->byte_order)
2318 if (info->osabi != arches->gdbarch->osabi)
2320 if (info->target_desc != arches->gdbarch->target_desc)
2328 /* Find an architecture that matches the specified INFO. Create a new
2329 architecture if needed. Return that new architecture. */
2332 gdbarch_find_by_info (struct gdbarch_info info)
2334 struct gdbarch *new_gdbarch;
2335 struct gdbarch_registration *rego;
2337 /* Fill in missing parts of the INFO struct using a number of
2338 sources: "set ..."; INFOabfd supplied; and the global
2340 gdbarch_info_fill (&info);
2342 /* Must have found some sort of architecture. */
2343 gdb_assert (info.bfd_arch_info != NULL);
2347 fprintf_unfiltered (gdb_stdlog,
2348 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2349 (info.bfd_arch_info != NULL
2350 ? info.bfd_arch_info->printable_name
2352 fprintf_unfiltered (gdb_stdlog,
2353 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2355 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2356 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2358 fprintf_unfiltered (gdb_stdlog,
2359 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2360 info.osabi, gdbarch_osabi_name (info.osabi));
2361 fprintf_unfiltered (gdb_stdlog,
2362 "gdbarch_find_by_info: info.abfd %s\n",
2363 host_address_to_string (info.abfd));
2364 fprintf_unfiltered (gdb_stdlog,
2365 "gdbarch_find_by_info: info.tdep_info %s\n",
2366 host_address_to_string (info.tdep_info));
2369 /* Find the tdep code that knows about this architecture. */
2370 for (rego = gdbarch_registry;
2373 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2378 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2379 "No matching architecture\n");
2383 /* Ask the tdep code for an architecture that matches "info". */
2384 new_gdbarch = rego->init (info, rego->arches);
2386 /* Did the tdep code like it? No. Reject the change and revert to
2387 the old architecture. */
2388 if (new_gdbarch == NULL)
2391 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2392 "Target rejected architecture\n");
2396 /* Is this a pre-existing architecture (as determined by already
2397 being initialized)? Move it to the front of the architecture
2398 list (keeping the list sorted Most Recently Used). */
2399 if (new_gdbarch->initialized_p)
2401 struct gdbarch_list **list;
2402 struct gdbarch_list *self;
2404 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2405 "Previous architecture %s (%s) selected\n",
2406 host_address_to_string (new_gdbarch),
2407 new_gdbarch->bfd_arch_info->printable_name);
2408 /* Find the existing arch in the list. */
2409 for (list = ®o->arches;
2410 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2411 list = &(*list)->next);
2412 /* It had better be in the list of architectures. */
2413 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2416 (*list) = self->next;
2417 /* Insert SELF at the front. */
2418 self->next = rego->arches;
2419 rego->arches = self;
2424 /* It's a new architecture. */
2426 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2427 "New architecture %s (%s) selected\n",
2428 host_address_to_string (new_gdbarch),
2429 new_gdbarch->bfd_arch_info->printable_name);
2431 /* Insert the new architecture into the front of the architecture
2432 list (keep the list sorted Most Recently Used). */
2434 struct gdbarch_list *self = XNEW (struct gdbarch_list);
2435 self->next = rego->arches;
2436 self->gdbarch = new_gdbarch;
2437 rego->arches = self;
2440 /* Check that the newly installed architecture is valid. Plug in
2441 any post init values. */
2442 new_gdbarch->dump_tdep = rego->dump_tdep;
2443 verify_gdbarch (new_gdbarch);
2444 new_gdbarch->initialized_p = 1;
2447 gdbarch_dump (new_gdbarch, gdb_stdlog);
2452 /* Make the specified architecture current. */
2455 set_target_gdbarch (struct gdbarch *new_gdbarch)
2457 gdb_assert (new_gdbarch != NULL);
2458 gdb_assert (new_gdbarch->initialized_p);
2459 current_inferior ()->gdbarch = new_gdbarch;
2460 observer_notify_architecture_changed (new_gdbarch);
2461 registers_changed ();
2464 /* Return the current inferior's arch. */
2467 target_gdbarch (void)
2469 return current_inferior ()->gdbarch;
2472 extern void _initialize_gdbarch (void);
2475 _initialize_gdbarch (void)
2477 add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2478 Set architecture debugging."), _("\\
2479 Show architecture debugging."), _("\\
2480 When non-zero, architecture debugging is enabled."),
2483 &setdebuglist, &showdebuglist);
2489 #../move-if-change new-gdbarch.c gdbarch.c
2490 compare_new gdbarch.c