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 # Some targets/architectures can do extra processing/display of
450 # segmentation faults. E.g., Intel MPX boundary faults.
451 # Call the architecture dependent function to handle the fault.
452 # UIOUT is the output stream where the handler will place information.
453 M:void:handle_segmentation_fault:struct ui_out *uiout:uiout
455 # GDB's standard (or well known) register numbers. These can map onto
456 # a real register or a pseudo (computed) register or not be defined at
458 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
459 v:int:sp_regnum:::-1:-1::0
460 v:int:pc_regnum:::-1:-1::0
461 v:int:ps_regnum:::-1:-1::0
462 v:int:fp0_regnum:::0:-1::0
463 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
464 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
465 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
466 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
467 # Convert from an sdb register number to an internal gdb register number.
468 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
469 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
470 # Return -1 for bad REGNUM. Note: Several targets get this wrong.
471 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
472 m:const char *:register_name:int regnr:regnr::0
474 # Return the type of a register specified by the architecture. Only
475 # the register cache should call this function directly; others should
476 # use "register_type".
477 M:struct type *:register_type:int reg_nr:reg_nr
479 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
480 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
481 # deprecated_fp_regnum.
482 v:int:deprecated_fp_regnum:::-1:-1::0
484 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
485 v:int:call_dummy_location::::AT_ENTRY_POINT::0
486 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
488 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
489 m:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args::default_print_float_info::0
490 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
491 # MAP a GDB RAW register number onto a simulator register number. See
492 # also include/...-sim.h.
493 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
494 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
495 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
497 # Determine the address where a longjmp will land and save this address
498 # in PC. Return nonzero on success.
500 # FRAME corresponds to the longjmp frame.
501 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
504 v:int:believe_pcc_promotion:::::::
506 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
507 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
508 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
509 # Construct a value representing the contents of register REGNUM in
510 # frame FRAME_ID, interpreted as type TYPE. The routine needs to
511 # allocate and return a struct value with all value attributes
512 # (but not the value contents) filled in.
513 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
515 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
516 m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
517 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
519 # Return the return-value convention that will be used by FUNCTION
520 # to return a value of type VALTYPE. FUNCTION may be NULL in which
521 # case the return convention is computed based only on VALTYPE.
523 # If READBUF is not NULL, extract the return value and save it in this buffer.
525 # If WRITEBUF is not NULL, it contains a return value which will be
526 # stored into the appropriate register. This can be used when we want
527 # to force the value returned by a function (see the "return" command
529 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
531 # Return true if the return value of function is stored in the first hidden
532 # parameter. In theory, this feature should be language-dependent, specified
533 # by language and its ABI, such as C++. Unfortunately, compiler may
534 # implement it to a target-dependent feature. So that we need such hook here
535 # to be aware of this in GDB.
536 m:int:return_in_first_hidden_param_p:struct type *type:type::default_return_in_first_hidden_param_p::0
538 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
539 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
540 # On some platforms, a single function may provide multiple entry points,
541 # e.g. one that is used for function-pointer calls and a different one
542 # that is used for direct function calls.
543 # In order to ensure that breakpoints set on the function will trigger
544 # no matter via which entry point the function is entered, a platform
545 # may provide the skip_entrypoint callback. It is called with IP set
546 # to the main entry point of a function (as determined by the symbol table),
547 # and should return the address of the innermost entry point, where the
548 # actual breakpoint needs to be set. Note that skip_entrypoint is used
549 # by GDB common code even when debugging optimized code, where skip_prologue
551 M:CORE_ADDR:skip_entrypoint:CORE_ADDR ip:ip
553 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
554 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
555 # Return the adjusted address and kind to use for Z0/Z1 packets.
556 # KIND is usually the memory length of the breakpoint, but may have a
557 # different target-specific meaning.
558 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
559 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
560 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
561 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
562 v:CORE_ADDR:decr_pc_after_break:::0:::0
564 # A function can be addressed by either it's "pointer" (possibly a
565 # descriptor address) or "entry point" (first executable instruction).
566 # The method "convert_from_func_ptr_addr" converting the former to the
567 # latter. gdbarch_deprecated_function_start_offset is being used to implement
568 # a simplified subset of that functionality - the function's address
569 # corresponds to the "function pointer" and the function's start
570 # corresponds to the "function entry point" - and hence is redundant.
572 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
574 # Return the remote protocol register number associated with this
575 # register. Normally the identity mapping.
576 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
578 # Fetch the target specific address used to represent a load module.
579 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
581 v:CORE_ADDR:frame_args_skip:::0:::0
582 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
583 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
584 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
585 # frame-base. Enable frame-base before frame-unwind.
586 F:int:frame_num_args:struct frame_info *frame:frame
588 M:CORE_ADDR:frame_align:CORE_ADDR address:address
589 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
590 v:int:frame_red_zone_size
592 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
593 # On some machines there are bits in addresses which are not really
594 # part of the address, but are used by the kernel, the hardware, etc.
595 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
596 # we get a "real" address such as one would find in a symbol table.
597 # This is used only for addresses of instructions, and even then I'm
598 # not sure it's used in all contexts. It exists to deal with there
599 # being a few stray bits in the PC which would mislead us, not as some
600 # sort of generic thing to handle alignment or segmentation (it's
601 # possible it should be in TARGET_READ_PC instead).
602 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
604 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
605 # indicates if the target needs software single step. An ISA method to
608 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
609 # target can single step. If not, then implement single step using breakpoints.
611 # A return value of 1 means that the software_single_step breakpoints
612 # were inserted; 0 means they were not.
613 F:int:software_single_step:struct frame_info *frame:frame
615 # Return non-zero if the processor is executing a delay slot and a
616 # further single-step is needed before the instruction finishes.
617 M:int:single_step_through_delay:struct frame_info *frame:frame
618 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
619 # disassembler. Perhaps objdump can handle it?
620 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
621 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
624 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
625 # evaluates non-zero, this is the address where the debugger will place
626 # a step-resume breakpoint to get us past the dynamic linker.
627 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
628 # Some systems also have trampoline code for returning from shared libs.
629 m:int:in_solib_return_trampoline:CORE_ADDR pc, const char *name:pc, name::generic_in_solib_return_trampoline::0
631 # A target might have problems with watchpoints as soon as the stack
632 # frame of the current function has been destroyed. This mostly happens
633 # as the first action in a function's epilogue. stack_frame_destroyed_p()
634 # is defined to return a non-zero value if either the given addr is one
635 # instruction after the stack destroying instruction up to the trailing
636 # return instruction or if we can figure out that the stack frame has
637 # already been invalidated regardless of the value of addr. Targets
638 # which don't suffer from that problem could just let this functionality
640 m:int:stack_frame_destroyed_p:CORE_ADDR addr:addr:0:generic_stack_frame_destroyed_p::0
641 # Process an ELF symbol in the minimal symbol table in a backend-specific
642 # way. Normally this hook is supposed to do nothing, however if required,
643 # then this hook can be used to apply tranformations to symbols that are
644 # considered special in some way. For example the MIPS backend uses it
645 # to interpret \`st_other' information to mark compressed code symbols so
646 # that they can be treated in the appropriate manner in the processing of
647 # the main symbol table and DWARF-2 records.
648 F:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym
649 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
650 # Process a symbol in the main symbol table in a backend-specific way.
651 # Normally this hook is supposed to do nothing, however if required,
652 # then this hook can be used to apply tranformations to symbols that
653 # are considered special in some way. This is currently used by the
654 # MIPS backend to make sure compressed code symbols have the ISA bit
655 # set. This in turn is needed for symbol values seen in GDB to match
656 # the values used at the runtime by the program itself, for function
657 # and label references.
658 f:void:make_symbol_special:struct symbol *sym, struct objfile *objfile:sym, objfile::default_make_symbol_special::0
659 # Adjust the address retrieved from a DWARF-2 record other than a line
660 # entry in a backend-specific way. Normally this hook is supposed to
661 # return the address passed unchanged, however if that is incorrect for
662 # any reason, then this hook can be used to fix the address up in the
663 # required manner. This is currently used by the MIPS backend to make
664 # sure addresses in FDE, range records, etc. referring to compressed
665 # code have the ISA bit set, matching line information and the symbol
667 f:CORE_ADDR:adjust_dwarf2_addr:CORE_ADDR pc:pc::default_adjust_dwarf2_addr::0
668 # Adjust the address updated by a line entry in a backend-specific way.
669 # Normally this hook is supposed to return the address passed unchanged,
670 # however in the case of inconsistencies in these records, this hook can
671 # be used to fix them up in the required manner. This is currently used
672 # by the MIPS backend to make sure all line addresses in compressed code
673 # are presented with the ISA bit set, which is not always the case. This
674 # in turn ensures breakpoint addresses are correctly matched against the
676 f:CORE_ADDR:adjust_dwarf2_line:CORE_ADDR addr, int rel:addr, rel::default_adjust_dwarf2_line::0
677 v:int:cannot_step_breakpoint:::0:0::0
678 v:int:have_nonsteppable_watchpoint:::0:0::0
679 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
680 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
682 # Return the appropriate type_flags for the supplied address class.
683 # This function should return 1 if the address class was recognized and
684 # type_flags was set, zero otherwise.
685 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
686 # Is a register in a group
687 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
688 # Fetch the pointer to the ith function argument.
689 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
691 # Iterate over all supported register notes in a core file. For each
692 # supported register note section, the iterator must call CB and pass
693 # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
694 # the supported register note sections based on the current register
695 # values. Otherwise it should enumerate all supported register note
697 M:void:iterate_over_regset_sections:iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache:cb, cb_data, regcache
699 # Create core file notes
700 M:char *:make_corefile_notes:bfd *obfd, int *note_size:obfd, note_size
702 # The elfcore writer hook to use to write Linux prpsinfo notes to core
703 # files. Most Linux architectures use the same prpsinfo32 or
704 # prpsinfo64 layouts, and so won't need to provide this hook, as we
705 # call the Linux generic routines in bfd to write prpsinfo notes by
707 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
709 # Find core file memory regions
710 M:int:find_memory_regions:find_memory_region_ftype func, void *data:func, data
712 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
713 # core file into buffer READBUF with length LEN. Return the number of bytes read
714 # (zero indicates failure).
715 # failed, otherwise, return the red length of READBUF.
716 M:ULONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
718 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
719 # libraries list from core file into buffer READBUF with length LEN.
720 # Return the number of bytes read (zero indicates failure).
721 M:ULONGEST:core_xfer_shared_libraries_aix:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
723 # How the core target converts a PTID from a core file to a string.
724 M:char *:core_pid_to_str:ptid_t ptid:ptid
726 # How the core target extracts the name of a thread from a core file.
727 M:const char *:core_thread_name:struct thread_info *thr:thr
729 # BFD target to use when generating a core file.
730 V:const char *:gcore_bfd_target:::0:0:::pstring (gdbarch->gcore_bfd_target)
732 # If the elements of C++ vtables are in-place function descriptors rather
733 # than normal function pointers (which may point to code or a descriptor),
735 v:int:vtable_function_descriptors:::0:0::0
737 # Set if the least significant bit of the delta is used instead of the least
738 # significant bit of the pfn for pointers to virtual member functions.
739 v:int:vbit_in_delta:::0:0::0
741 # Advance PC to next instruction in order to skip a permanent breakpoint.
742 f:void:skip_permanent_breakpoint:struct regcache *regcache:regcache:default_skip_permanent_breakpoint:default_skip_permanent_breakpoint::0
744 # The maximum length of an instruction on this architecture in bytes.
745 V:ULONGEST:max_insn_length:::0:0
747 # Copy the instruction at FROM to TO, and make any adjustments
748 # necessary to single-step it at that address.
750 # REGS holds the state the thread's registers will have before
751 # executing the copied instruction; the PC in REGS will refer to FROM,
752 # not the copy at TO. The caller should update it to point at TO later.
754 # Return a pointer to data of the architecture's choice to be passed
755 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
756 # the instruction's effects have been completely simulated, with the
757 # resulting state written back to REGS.
759 # For a general explanation of displaced stepping and how GDB uses it,
760 # see the comments in infrun.c.
762 # The TO area is only guaranteed to have space for
763 # gdbarch_max_insn_length (arch) bytes, so this function must not
764 # write more bytes than that to that area.
766 # If you do not provide this function, GDB assumes that the
767 # architecture does not support displaced stepping.
769 # If your architecture doesn't need to adjust instructions before
770 # single-stepping them, consider using simple_displaced_step_copy_insn
773 # If the instruction cannot execute out of line, return NULL. The
774 # core falls back to stepping past the instruction in-line instead in
776 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
778 # Return true if GDB should use hardware single-stepping to execute
779 # the displaced instruction identified by CLOSURE. If false,
780 # GDB will simply restart execution at the displaced instruction
781 # location, and it is up to the target to ensure GDB will receive
782 # control again (e.g. by placing a software breakpoint instruction
783 # into the displaced instruction buffer).
785 # The default implementation returns false on all targets that
786 # provide a gdbarch_software_single_step routine, and true otherwise.
787 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
789 # Fix up the state resulting from successfully single-stepping a
790 # displaced instruction, to give the result we would have gotten from
791 # stepping the instruction in its original location.
793 # REGS is the register state resulting from single-stepping the
794 # displaced instruction.
796 # CLOSURE is the result from the matching call to
797 # gdbarch_displaced_step_copy_insn.
799 # If you provide gdbarch_displaced_step_copy_insn.but not this
800 # function, then GDB assumes that no fixup is needed after
801 # single-stepping the instruction.
803 # For a general explanation of displaced stepping and how GDB uses it,
804 # see the comments in infrun.c.
805 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
807 # Free a closure returned by gdbarch_displaced_step_copy_insn.
809 # If you provide gdbarch_displaced_step_copy_insn, you must provide
810 # this function as well.
812 # If your architecture uses closures that don't need to be freed, then
813 # you can use simple_displaced_step_free_closure here.
815 # For a general explanation of displaced stepping and how GDB uses it,
816 # see the comments in infrun.c.
817 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
819 # Return the address of an appropriate place to put displaced
820 # instructions while we step over them. There need only be one such
821 # place, since we're only stepping one thread over a breakpoint at a
824 # For a general explanation of displaced stepping and how GDB uses it,
825 # see the comments in infrun.c.
826 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
828 # Relocate an instruction to execute at a different address. OLDLOC
829 # is the address in the inferior memory where the instruction to
830 # relocate is currently at. On input, TO points to the destination
831 # where we want the instruction to be copied (and possibly adjusted)
832 # to. On output, it points to one past the end of the resulting
833 # instruction(s). The effect of executing the instruction at TO shall
834 # be the same as if executing it at FROM. For example, call
835 # instructions that implicitly push the return address on the stack
836 # should be adjusted to return to the instruction after OLDLOC;
837 # relative branches, and other PC-relative instructions need the
838 # offset adjusted; etc.
839 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
841 # Refresh overlay mapped state for section OSECT.
842 F:void:overlay_update:struct obj_section *osect:osect
844 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
846 # Handle special encoding of static variables in stabs debug info.
847 F:const char *:static_transform_name:const char *name:name
848 # Set if the address in N_SO or N_FUN stabs may be zero.
849 v:int:sofun_address_maybe_missing:::0:0::0
851 # Parse the instruction at ADDR storing in the record execution log
852 # the registers REGCACHE and memory ranges that will be affected when
853 # the instruction executes, along with their current values.
854 # Return -1 if something goes wrong, 0 otherwise.
855 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
857 # Save process state after a signal.
858 # Return -1 if something goes wrong, 0 otherwise.
859 M:int:process_record_signal:struct regcache *regcache, enum gdb_signal signal:regcache, signal
861 # Signal translation: translate inferior's signal (target's) number
862 # into GDB's representation. The implementation of this method must
863 # be host independent. IOW, don't rely on symbols of the NAT_FILE
864 # header (the nm-*.h files), the host <signal.h> header, or similar
865 # headers. This is mainly used when cross-debugging core files ---
866 # "Live" targets hide the translation behind the target interface
867 # (target_wait, target_resume, etc.).
868 M:enum gdb_signal:gdb_signal_from_target:int signo:signo
870 # Signal translation: translate the GDB's internal signal number into
871 # the inferior's signal (target's) representation. The implementation
872 # of this method must be host independent. IOW, don't rely on symbols
873 # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
874 # header, or similar headers.
875 # Return the target signal number if found, or -1 if the GDB internal
876 # signal number is invalid.
877 M:int:gdb_signal_to_target:enum gdb_signal signal:signal
879 # Extra signal info inspection.
881 # Return a type suitable to inspect extra signal information.
882 M:struct type *:get_siginfo_type:void:
884 # Record architecture-specific information from the symbol table.
885 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
887 # Function for the 'catch syscall' feature.
889 # Get architecture-specific system calls information from registers.
890 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
892 # The filename of the XML syscall for this architecture.
893 v:const char *:xml_syscall_file:::0:0::0:pstring (gdbarch->xml_syscall_file)
895 # Information about system calls from this architecture
896 v:struct syscalls_info *:syscalls_info:::0:0::0:host_address_to_string (gdbarch->syscalls_info)
898 # SystemTap related fields and functions.
900 # A NULL-terminated array of prefixes used to mark an integer constant
901 # on the architecture's assembly.
902 # For example, on x86 integer constants are written as:
904 # \$10 ;; integer constant 10
906 # in this case, this prefix would be the character \`\$\'.
907 v:const char *const *:stap_integer_prefixes:::0:0::0:pstring_list (gdbarch->stap_integer_prefixes)
909 # A NULL-terminated array of suffixes used to mark an integer constant
910 # on the architecture's assembly.
911 v:const char *const *:stap_integer_suffixes:::0:0::0:pstring_list (gdbarch->stap_integer_suffixes)
913 # A NULL-terminated array of prefixes used to mark a register name on
914 # the architecture's assembly.
915 # For example, on x86 the register name is written as:
917 # \%eax ;; register eax
919 # in this case, this prefix would be the character \`\%\'.
920 v:const char *const *:stap_register_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_prefixes)
922 # A NULL-terminated array of suffixes used to mark a register name on
923 # the architecture's assembly.
924 v:const char *const *:stap_register_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_suffixes)
926 # A NULL-terminated array of prefixes used to mark a register
927 # indirection on the architecture's assembly.
928 # For example, on x86 the register indirection is written as:
930 # \(\%eax\) ;; indirecting eax
932 # in this case, this prefix would be the charater \`\(\'.
934 # Please note that we use the indirection prefix also for register
935 # displacement, e.g., \`4\(\%eax\)\' on x86.
936 v:const char *const *:stap_register_indirection_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_prefixes)
938 # A NULL-terminated array of suffixes used to mark a register
939 # indirection on the architecture's assembly.
940 # For example, on x86 the register indirection is written as:
942 # \(\%eax\) ;; indirecting eax
944 # in this case, this prefix would be the charater \`\)\'.
946 # Please note that we use the indirection suffix also for register
947 # displacement, e.g., \`4\(\%eax\)\' on x86.
948 v:const char *const *:stap_register_indirection_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_suffixes)
950 # Prefix(es) used to name a register using GDB's nomenclature.
952 # For example, on PPC a register is represented by a number in the assembly
953 # language (e.g., \`10\' is the 10th general-purpose register). However,
954 # inside GDB this same register has an \`r\' appended to its name, so the 10th
955 # register would be represented as \`r10\' internally.
956 v:const char *:stap_gdb_register_prefix:::0:0::0:pstring (gdbarch->stap_gdb_register_prefix)
958 # Suffix used to name a register using GDB's nomenclature.
959 v:const char *:stap_gdb_register_suffix:::0:0::0:pstring (gdbarch->stap_gdb_register_suffix)
961 # Check if S is a single operand.
963 # Single operands can be:
964 # \- Literal integers, e.g. \`\$10\' on x86
965 # \- Register access, e.g. \`\%eax\' on x86
966 # \- Register indirection, e.g. \`\(\%eax\)\' on x86
967 # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
969 # This function should check for these patterns on the string
970 # and return 1 if some were found, or zero otherwise. Please try to match
971 # as much info as you can from the string, i.e., if you have to match
972 # something like \`\(\%\', do not match just the \`\(\'.
973 M:int:stap_is_single_operand:const char *s:s
975 # Function used to handle a "special case" in the parser.
977 # A "special case" is considered to be an unknown token, i.e., a token
978 # that the parser does not know how to parse. A good example of special
979 # case would be ARM's register displacement syntax:
981 # [R0, #4] ;; displacing R0 by 4
983 # Since the parser assumes that a register displacement is of the form:
985 # <number> <indirection_prefix> <register_name> <indirection_suffix>
987 # it means that it will not be able to recognize and parse this odd syntax.
988 # Therefore, we should add a special case function that will handle this token.
990 # This function should generate the proper expression form of the expression
991 # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
992 # and so on). It should also return 1 if the parsing was successful, or zero
993 # if the token was not recognized as a special token (in this case, returning
994 # zero means that the special parser is deferring the parsing to the generic
995 # parser), and should advance the buffer pointer (p->arg).
996 M:int:stap_parse_special_token:struct stap_parse_info *p:p
998 # DTrace related functions.
1000 # The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1001 # NARG must be >= 0.
1002 M:void:dtrace_parse_probe_argument:struct parser_state *pstate, int narg:pstate, narg
1004 # True if the given ADDR does not contain the instruction sequence
1005 # corresponding to a disabled DTrace is-enabled probe.
1006 M:int:dtrace_probe_is_enabled:CORE_ADDR addr:addr
1008 # Enable a DTrace is-enabled probe at ADDR.
1009 M:void:dtrace_enable_probe:CORE_ADDR addr:addr
1011 # Disable a DTrace is-enabled probe at ADDR.
1012 M:void:dtrace_disable_probe:CORE_ADDR addr:addr
1014 # True if the list of shared libraries is one and only for all
1015 # processes, as opposed to a list of shared libraries per inferior.
1016 # This usually means that all processes, although may or may not share
1017 # an address space, will see the same set of symbols at the same
1019 v:int:has_global_solist:::0:0::0
1021 # On some targets, even though each inferior has its own private
1022 # address space, the debug interface takes care of making breakpoints
1023 # visible to all address spaces automatically. For such cases,
1024 # this property should be set to true.
1025 v:int:has_global_breakpoints:::0:0::0
1027 # True if inferiors share an address space (e.g., uClinux).
1028 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
1030 # True if a fast tracepoint can be set at an address.
1031 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, char **msg:addr, msg::default_fast_tracepoint_valid_at::0
1033 # Guess register state based on tracepoint location. Used for tracepoints
1034 # where no registers have been collected, but there's only one location,
1035 # allowing us to guess the PC value, and perhaps some other registers.
1036 # On entry, regcache has all registers marked as unavailable.
1037 m:void:guess_tracepoint_registers:struct regcache *regcache, CORE_ADDR addr:regcache, addr::default_guess_tracepoint_registers::0
1039 # Return the "auto" target charset.
1040 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
1041 # Return the "auto" target wide charset.
1042 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
1044 # If non-empty, this is a file extension that will be opened in place
1045 # of the file extension reported by the shared library list.
1047 # This is most useful for toolchains that use a post-linker tool,
1048 # where the names of the files run on the target differ in extension
1049 # compared to the names of the files GDB should load for debug info.
1050 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
1052 # If true, the target OS has DOS-based file system semantics. That
1053 # is, absolute paths include a drive name, and the backslash is
1054 # considered a directory separator.
1055 v:int:has_dos_based_file_system:::0:0::0
1057 # Generate bytecodes to collect the return address in a frame.
1058 # Since the bytecodes run on the target, possibly with GDB not even
1059 # connected, the full unwinding machinery is not available, and
1060 # typically this function will issue bytecodes for one or more likely
1061 # places that the return address may be found.
1062 m:void:gen_return_address:struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope:ax, value, scope::default_gen_return_address::0
1064 # Implement the "info proc" command.
1065 M:void:info_proc:const char *args, enum info_proc_what what:args, what
1067 # Implement the "info proc" command for core files. Noe that there
1068 # are two "info_proc"-like methods on gdbarch -- one for core files,
1069 # one for live targets.
1070 M:void:core_info_proc:const char *args, enum info_proc_what what:args, what
1072 # Iterate over all objfiles in the order that makes the most sense
1073 # for the architecture to make global symbol searches.
1075 # CB is a callback function where OBJFILE is the objfile to be searched,
1076 # and CB_DATA a pointer to user-defined data (the same data that is passed
1077 # when calling this gdbarch method). The iteration stops if this function
1080 # CB_DATA is a pointer to some user-defined data to be passed to
1083 # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1084 # inspected when the symbol search was requested.
1085 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
1087 # Ravenscar arch-dependent ops.
1088 v:struct ravenscar_arch_ops *:ravenscar_ops:::NULL:NULL::0:host_address_to_string (gdbarch->ravenscar_ops)
1090 # Return non-zero if the instruction at ADDR is a call; zero otherwise.
1091 m:int:insn_is_call:CORE_ADDR addr:addr::default_insn_is_call::0
1093 # Return non-zero if the instruction at ADDR is a return; zero otherwise.
1094 m:int:insn_is_ret:CORE_ADDR addr:addr::default_insn_is_ret::0
1096 # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
1097 m:int:insn_is_jump:CORE_ADDR addr:addr::default_insn_is_jump::0
1099 # Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1100 # Return 0 if *READPTR is already at the end of the buffer.
1101 # Return -1 if there is insufficient buffer for a whole entry.
1102 # Return 1 if an entry was read into *TYPEP and *VALP.
1103 M:int:auxv_parse:gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp:readptr, endptr, typep, valp
1105 # Find the address range of the current inferior's vsyscall/vDSO, and
1106 # write it to *RANGE. If the vsyscall's length can't be determined, a
1107 # range with zero length is returned. Returns true if the vsyscall is
1108 # found, false otherwise.
1109 m:int:vsyscall_range:struct mem_range *range:range::default_vsyscall_range::0
1111 # Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1112 # PROT has GDB_MMAP_PROT_* bitmask format.
1113 # Throw an error if it is not possible. Returned address is always valid.
1114 f:CORE_ADDR:infcall_mmap:CORE_ADDR size, unsigned prot:size, prot::default_infcall_mmap::0
1116 # Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1117 # Print a warning if it is not possible.
1118 f:void:infcall_munmap:CORE_ADDR addr, CORE_ADDR size:addr, size::default_infcall_munmap::0
1120 # Return string (caller has to use xfree for it) with options for GCC
1121 # to produce code for this target, typically "-m64", "-m32" or "-m31".
1122 # These options are put before CU's DW_AT_producer compilation options so that
1123 # they can override it. Method may also return NULL.
1124 m:char *:gcc_target_options:void:::default_gcc_target_options::0
1126 # Return a regular expression that matches names used by this
1127 # architecture in GNU configury triplets. The result is statically
1128 # allocated and must not be freed. The default implementation simply
1129 # returns the BFD architecture name, which is correct in nearly every
1131 m:const char *:gnu_triplet_regexp:void:::default_gnu_triplet_regexp::0
1133 # Return the size in 8-bit bytes of an addressable memory unit on this
1134 # architecture. This corresponds to the number of 8-bit bytes associated to
1135 # each address in memory.
1136 m:int:addressable_memory_unit_size:void:::default_addressable_memory_unit_size::0
1144 exec > new-gdbarch.log
1145 function_list |
while do_read
1148 ${class} ${returntype} ${function} ($formal)
1152 eval echo \"\ \ \ \
${r}=\
${${r}}\"
1154 if class_is_predicate_p
&& fallback_default_p
1156 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
1160 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
1162 echo "Error: postdefault is useless when invalid_p=0" 1>&2
1166 if class_is_multiarch_p
1168 if class_is_predicate_p
; then :
1169 elif test "x${predefault}" = "x"
1171 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
1180 compare_new gdbarch.log
1186 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
1189 /* Dynamic architecture support for GDB, the GNU debugger.
1191 Copyright (C) 1998-2016 Free Software Foundation, Inc.
1193 This file is part of GDB.
1195 This program is free software; you can redistribute it and/or modify
1196 it under the terms of the GNU General Public License as published by
1197 the Free Software Foundation; either version 3 of the License, or
1198 (at your option) any later version.
1200 This program is distributed in the hope that it will be useful,
1201 but WITHOUT ANY WARRANTY; without even the implied warranty of
1202 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1203 GNU General Public License for more details.
1205 You should have received a copy of the GNU General Public License
1206 along with this program. If not, see <http://www.gnu.org/licenses/>. */
1208 /* This file was created with the aid of \`\`gdbarch.sh''.
1210 The Bourne shell script \`\`gdbarch.sh'' creates the files
1211 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
1212 against the existing \`\`gdbarch.[hc]''. Any differences found
1215 If editing this file, please also run gdbarch.sh and merge any
1216 changes into that script. Conversely, when making sweeping changes
1217 to this file, modifying gdbarch.sh and using its output may prove
1227 exec > new-gdbarch.h
1240 struct minimal_symbol;
1244 struct disassemble_info;
1247 struct bp_target_info;
1251 struct displaced_step_closure;
1255 struct stap_parse_info;
1256 struct parser_state;
1257 struct ravenscar_arch_ops;
1258 struct elf_internal_linux_prpsinfo;
1260 struct syscalls_info;
1264 #include "regcache.h"
1266 /* The architecture associated with the inferior through the
1267 connection to the target.
1269 The architecture vector provides some information that is really a
1270 property of the inferior, accessed through a particular target:
1271 ptrace operations; the layout of certain RSP packets; the solib_ops
1272 vector; etc. To differentiate architecture accesses to
1273 per-inferior/target properties from
1274 per-thread/per-frame/per-objfile properties, accesses to
1275 per-inferior/target properties should be made through this
1278 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
1279 extern struct gdbarch *target_gdbarch (void);
1281 /* Callback type for the 'iterate_over_objfiles_in_search_order'
1284 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
1285 (struct objfile *objfile, void *cb_data);
1287 /* Callback type for regset section iterators. The callback usually
1288 invokes the REGSET's supply or collect method, to which it must
1289 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
1290 section name, and HUMAN_NAME is used for diagnostic messages.
1291 CB_DATA should have been passed unchanged through the iterator. */
1293 typedef void (iterate_over_regset_sections_cb)
1294 (const char *sect_name, int size, const struct regset *regset,
1295 const char *human_name, void *cb_data);
1298 # function typedef's
1301 printf "/* The following are pre-initialized by GDBARCH. */\n"
1302 function_list |
while do_read
1307 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1308 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
1312 # function typedef's
1315 printf "/* The following are initialized by the target dependent code. */\n"
1316 function_list |
while do_read
1318 if [ -n "${comment}" ]
1320 echo "${comment}" |
sed \
1326 if class_is_predicate_p
1329 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1331 if class_is_variable_p
1334 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1335 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1337 if class_is_function_p
1340 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1342 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1343 elif class_is_multiarch_p
1345 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1347 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1349 if [ "x${formal}" = "xvoid" ]
1351 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1353 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1355 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1362 /* Definition for an unknown syscall, used basically in error-cases. */
1363 #define UNKNOWN_SYSCALL (-1)
1365 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1368 /* Mechanism for co-ordinating the selection of a specific
1371 GDB targets (*-tdep.c) can register an interest in a specific
1372 architecture. Other GDB components can register a need to maintain
1373 per-architecture data.
1375 The mechanisms below ensures that there is only a loose connection
1376 between the set-architecture command and the various GDB
1377 components. Each component can independently register their need
1378 to maintain architecture specific data with gdbarch.
1382 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1385 The more traditional mega-struct containing architecture specific
1386 data for all the various GDB components was also considered. Since
1387 GDB is built from a variable number of (fairly independent)
1388 components it was determined that the global aproach was not
1392 /* Register a new architectural family with GDB.
1394 Register support for the specified ARCHITECTURE with GDB. When
1395 gdbarch determines that the specified architecture has been
1396 selected, the corresponding INIT function is called.
1400 The INIT function takes two parameters: INFO which contains the
1401 information available to gdbarch about the (possibly new)
1402 architecture; ARCHES which is a list of the previously created
1403 \`\`struct gdbarch'' for this architecture.
1405 The INFO parameter is, as far as possible, be pre-initialized with
1406 information obtained from INFO.ABFD or the global defaults.
1408 The ARCHES parameter is a linked list (sorted most recently used)
1409 of all the previously created architures for this architecture
1410 family. The (possibly NULL) ARCHES->gdbarch can used to access
1411 values from the previously selected architecture for this
1412 architecture family.
1414 The INIT function shall return any of: NULL - indicating that it
1415 doesn't recognize the selected architecture; an existing \`\`struct
1416 gdbarch'' from the ARCHES list - indicating that the new
1417 architecture is just a synonym for an earlier architecture (see
1418 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1419 - that describes the selected architecture (see gdbarch_alloc()).
1421 The DUMP_TDEP function shall print out all target specific values.
1422 Care should be taken to ensure that the function works in both the
1423 multi-arch and non- multi-arch cases. */
1427 struct gdbarch *gdbarch;
1428 struct gdbarch_list *next;
1433 /* Use default: NULL (ZERO). */
1434 const struct bfd_arch_info *bfd_arch_info;
1436 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1437 enum bfd_endian byte_order;
1439 enum bfd_endian byte_order_for_code;
1441 /* Use default: NULL (ZERO). */
1444 /* Use default: NULL (ZERO). */
1447 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1448 enum gdb_osabi osabi;
1450 /* Use default: NULL (ZERO). */
1451 const struct target_desc *target_desc;
1454 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1455 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1457 /* DEPRECATED - use gdbarch_register() */
1458 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1460 extern void gdbarch_register (enum bfd_architecture architecture,
1461 gdbarch_init_ftype *,
1462 gdbarch_dump_tdep_ftype *);
1465 /* Return a freshly allocated, NULL terminated, array of the valid
1466 architecture names. Since architectures are registered during the
1467 _initialize phase this function only returns useful information
1468 once initialization has been completed. */
1470 extern const char **gdbarch_printable_names (void);
1473 /* Helper function. Search the list of ARCHES for a GDBARCH that
1474 matches the information provided by INFO. */
1476 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1479 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1480 basic initialization using values obtained from the INFO and TDEP
1481 parameters. set_gdbarch_*() functions are called to complete the
1482 initialization of the object. */
1484 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1487 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1488 It is assumed that the caller freeds the \`\`struct
1491 extern void gdbarch_free (struct gdbarch *);
1494 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1495 obstack. The memory is freed when the corresponding architecture
1498 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1499 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1500 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1502 /* Duplicate STRING, returning an equivalent string that's allocated on the
1503 obstack associated with GDBARCH. The string is freed when the corresponding
1504 architecture is also freed. */
1506 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1508 /* Helper function. Force an update of the current architecture.
1510 The actual architecture selected is determined by INFO, \`\`(gdb) set
1511 architecture'' et.al., the existing architecture and BFD's default
1512 architecture. INFO should be initialized to zero and then selected
1513 fields should be updated.
1515 Returns non-zero if the update succeeds. */
1517 extern int gdbarch_update_p (struct gdbarch_info info);
1520 /* Helper function. Find an architecture matching info.
1522 INFO should be initialized using gdbarch_info_init, relevant fields
1523 set, and then finished using gdbarch_info_fill.
1525 Returns the corresponding architecture, or NULL if no matching
1526 architecture was found. */
1528 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1531 /* Helper function. Set the target gdbarch to "gdbarch". */
1533 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1536 /* Register per-architecture data-pointer.
1538 Reserve space for a per-architecture data-pointer. An identifier
1539 for the reserved data-pointer is returned. That identifer should
1540 be saved in a local static variable.
1542 Memory for the per-architecture data shall be allocated using
1543 gdbarch_obstack_zalloc. That memory will be deleted when the
1544 corresponding architecture object is deleted.
1546 When a previously created architecture is re-selected, the
1547 per-architecture data-pointer for that previous architecture is
1548 restored. INIT() is not re-called.
1550 Multiple registrarants for any architecture are allowed (and
1551 strongly encouraged). */
1553 struct gdbarch_data;
1555 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1556 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1557 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1558 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1559 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1560 struct gdbarch_data *data,
1563 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1566 /* Set the dynamic target-system-dependent parameters (architecture,
1567 byte-order, ...) using information found in the BFD. */
1569 extern void set_gdbarch_from_file (bfd *);
1572 /* Initialize the current architecture to the "first" one we find on
1575 extern void initialize_current_architecture (void);
1577 /* gdbarch trace variable */
1578 extern unsigned int gdbarch_debug;
1580 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1585 #../move-if-change new-gdbarch.h gdbarch.h
1586 compare_new gdbarch.h
1593 exec > new-gdbarch.c
1598 #include "arch-utils.h"
1601 #include "inferior.h"
1604 #include "floatformat.h"
1605 #include "reggroups.h"
1607 #include "gdb_obstack.h"
1608 #include "observer.h"
1609 #include "regcache.h"
1610 #include "objfiles.h"
1612 /* Static function declarations */
1614 static void alloc_gdbarch_data (struct gdbarch *);
1616 /* Non-zero if we want to trace architecture code. */
1618 #ifndef GDBARCH_DEBUG
1619 #define GDBARCH_DEBUG 0
1621 unsigned int gdbarch_debug = GDBARCH_DEBUG;
1623 show_gdbarch_debug (struct ui_file *file, int from_tty,
1624 struct cmd_list_element *c, const char *value)
1626 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1630 pformat (const struct floatformat **format)
1635 /* Just print out one of them - this is only for diagnostics. */
1636 return format[0]->name;
1640 pstring (const char *string)
1647 /* Helper function to print a list of strings, represented as "const
1648 char *const *". The list is printed comma-separated. */
1651 pstring_list (const char *const *list)
1653 static char ret[100];
1654 const char *const *p;
1661 for (p = list; *p != NULL && offset < sizeof (ret); ++p)
1663 size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
1669 gdb_assert (offset - 2 < sizeof (ret));
1670 ret[offset - 2] = '\0';
1678 # gdbarch open the gdbarch object
1680 printf "/* Maintain the struct gdbarch object. */\n"
1682 printf "struct gdbarch\n"
1684 printf " /* Has this architecture been fully initialized? */\n"
1685 printf " int initialized_p;\n"
1687 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1688 printf " struct obstack *obstack;\n"
1690 printf " /* basic architectural information. */\n"
1691 function_list |
while do_read
1695 printf " ${returntype} ${function};\n"
1699 printf " /* target specific vector. */\n"
1700 printf " struct gdbarch_tdep *tdep;\n"
1701 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1703 printf " /* per-architecture data-pointers. */\n"
1704 printf " unsigned nr_data;\n"
1705 printf " void **data;\n"
1708 /* Multi-arch values.
1710 When extending this structure you must:
1712 Add the field below.
1714 Declare set/get functions and define the corresponding
1717 gdbarch_alloc(): If zero/NULL is not a suitable default,
1718 initialize the new field.
1720 verify_gdbarch(): Confirm that the target updated the field
1723 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1726 get_gdbarch(): Implement the set/get functions (probably using
1727 the macro's as shortcuts).
1732 function_list |
while do_read
1734 if class_is_variable_p
1736 printf " ${returntype} ${function};\n"
1737 elif class_is_function_p
1739 printf " gdbarch_${function}_ftype *${function};\n"
1744 # Create a new gdbarch struct
1747 /* Create a new \`\`struct gdbarch'' based on information provided by
1748 \`\`struct gdbarch_info''. */
1753 gdbarch_alloc (const struct gdbarch_info *info,
1754 struct gdbarch_tdep *tdep)
1756 struct gdbarch *gdbarch;
1758 /* Create an obstack for allocating all the per-architecture memory,
1759 then use that to allocate the architecture vector. */
1760 struct obstack *obstack = XNEW (struct obstack);
1761 obstack_init (obstack);
1762 gdbarch = XOBNEW (obstack, struct gdbarch);
1763 memset (gdbarch, 0, sizeof (*gdbarch));
1764 gdbarch->obstack = obstack;
1766 alloc_gdbarch_data (gdbarch);
1768 gdbarch->tdep = tdep;
1771 function_list |
while do_read
1775 printf " gdbarch->${function} = info->${function};\n"
1779 printf " /* Force the explicit initialization of these. */\n"
1780 function_list |
while do_read
1782 if class_is_function_p || class_is_variable_p
1784 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1786 printf " gdbarch->${function} = ${predefault};\n"
1791 /* gdbarch_alloc() */
1797 # Free a gdbarch struct.
1801 /* Allocate extra space using the per-architecture obstack. */
1804 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1806 void *data = obstack_alloc (arch->obstack, size);
1808 memset (data, 0, size);
1812 /* See gdbarch.h. */
1815 gdbarch_obstack_strdup (struct gdbarch *arch, const char *string)
1817 return obstack_strdup (arch->obstack, string);
1821 /* Free a gdbarch struct. This should never happen in normal
1822 operation --- once you've created a gdbarch, you keep it around.
1823 However, if an architecture's init function encounters an error
1824 building the structure, it may need to clean up a partially
1825 constructed gdbarch. */
1828 gdbarch_free (struct gdbarch *arch)
1830 struct obstack *obstack;
1832 gdb_assert (arch != NULL);
1833 gdb_assert (!arch->initialized_p);
1834 obstack = arch->obstack;
1835 obstack_free (obstack, 0); /* Includes the ARCH. */
1840 # verify a new architecture
1844 /* Ensure that all values in a GDBARCH are reasonable. */
1847 verify_gdbarch (struct gdbarch *gdbarch)
1849 struct ui_file *log;
1850 struct cleanup *cleanups;
1854 log = mem_fileopen ();
1855 cleanups = make_cleanup_ui_file_delete (log);
1857 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1858 fprintf_unfiltered (log, "\n\tbyte-order");
1859 if (gdbarch->bfd_arch_info == NULL)
1860 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1861 /* Check those that need to be defined for the given multi-arch level. */
1863 function_list |
while do_read
1865 if class_is_function_p || class_is_variable_p
1867 if [ "x${invalid_p}" = "x0" ]
1869 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1870 elif class_is_predicate_p
1872 printf " /* Skip verify of ${function}, has predicate. */\n"
1873 # FIXME: See do_read for potential simplification
1874 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1876 printf " if (${invalid_p})\n"
1877 printf " gdbarch->${function} = ${postdefault};\n"
1878 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1880 printf " if (gdbarch->${function} == ${predefault})\n"
1881 printf " gdbarch->${function} = ${postdefault};\n"
1882 elif [ -n "${postdefault}" ]
1884 printf " if (gdbarch->${function} == 0)\n"
1885 printf " gdbarch->${function} = ${postdefault};\n"
1886 elif [ -n "${invalid_p}" ]
1888 printf " if (${invalid_p})\n"
1889 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1890 elif [ -n "${predefault}" ]
1892 printf " if (gdbarch->${function} == ${predefault})\n"
1893 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1898 buf = ui_file_xstrdup (log, &length);
1899 make_cleanup (xfree, buf);
1901 internal_error (__FILE__, __LINE__,
1902 _("verify_gdbarch: the following are invalid ...%s"),
1904 do_cleanups (cleanups);
1908 # dump the structure
1912 /* Print out the details of the current architecture. */
1915 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1917 const char *gdb_nm_file = "<not-defined>";
1919 #if defined (GDB_NM_FILE)
1920 gdb_nm_file = GDB_NM_FILE;
1922 fprintf_unfiltered (file,
1923 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1926 function_list |
sort -t: -k 3 |
while do_read
1928 # First the predicate
1929 if class_is_predicate_p
1931 printf " fprintf_unfiltered (file,\n"
1932 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1933 printf " gdbarch_${function}_p (gdbarch));\n"
1935 # Print the corresponding value.
1936 if class_is_function_p
1938 printf " fprintf_unfiltered (file,\n"
1939 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1940 printf " host_address_to_string (gdbarch->${function}));\n"
1943 case "${print}:${returntype}" in
1946 print
="core_addr_to_string_nz (gdbarch->${function})"
1950 print
="plongest (gdbarch->${function})"
1956 printf " fprintf_unfiltered (file,\n"
1957 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1958 printf " ${print});\n"
1962 if (gdbarch->dump_tdep != NULL)
1963 gdbarch->dump_tdep (gdbarch, file);
1971 struct gdbarch_tdep *
1972 gdbarch_tdep (struct gdbarch *gdbarch)
1974 if (gdbarch_debug >= 2)
1975 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1976 return gdbarch->tdep;
1980 function_list |
while do_read
1982 if class_is_predicate_p
1986 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1988 printf " gdb_assert (gdbarch != NULL);\n"
1989 printf " return ${predicate};\n"
1992 if class_is_function_p
1995 printf "${returntype}\n"
1996 if [ "x${formal}" = "xvoid" ]
1998 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2000 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
2003 printf " gdb_assert (gdbarch != NULL);\n"
2004 printf " gdb_assert (gdbarch->${function} != NULL);\n"
2005 if class_is_predicate_p
&& test -n "${predefault}"
2007 # Allow a call to a function with a predicate.
2008 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
2010 printf " if (gdbarch_debug >= 2)\n"
2011 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2012 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
2014 if class_is_multiarch_p
2021 if class_is_multiarch_p
2023 params
="gdbarch, ${actual}"
2028 if [ "x${returntype}" = "xvoid" ]
2030 printf " gdbarch->${function} (${params});\n"
2032 printf " return gdbarch->${function} (${params});\n"
2037 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2038 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
2040 printf " gdbarch->${function} = ${function};\n"
2042 elif class_is_variable_p
2045 printf "${returntype}\n"
2046 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2048 printf " gdb_assert (gdbarch != NULL);\n"
2049 if [ "x${invalid_p}" = "x0" ]
2051 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
2052 elif [ -n "${invalid_p}" ]
2054 printf " /* Check variable is valid. */\n"
2055 printf " gdb_assert (!(${invalid_p}));\n"
2056 elif [ -n "${predefault}" ]
2058 printf " /* Check variable changed from pre-default. */\n"
2059 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
2061 printf " if (gdbarch_debug >= 2)\n"
2062 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2063 printf " return gdbarch->${function};\n"
2067 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2068 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
2070 printf " gdbarch->${function} = ${function};\n"
2072 elif class_is_info_p
2075 printf "${returntype}\n"
2076 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2078 printf " gdb_assert (gdbarch != NULL);\n"
2079 printf " if (gdbarch_debug >= 2)\n"
2080 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2081 printf " return gdbarch->${function};\n"
2086 # All the trailing guff
2090 /* Keep a registry of per-architecture data-pointers required by GDB
2097 gdbarch_data_pre_init_ftype *pre_init;
2098 gdbarch_data_post_init_ftype *post_init;
2101 struct gdbarch_data_registration
2103 struct gdbarch_data *data;
2104 struct gdbarch_data_registration *next;
2107 struct gdbarch_data_registry
2110 struct gdbarch_data_registration *registrations;
2113 struct gdbarch_data_registry gdbarch_data_registry =
2118 static struct gdbarch_data *
2119 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
2120 gdbarch_data_post_init_ftype *post_init)
2122 struct gdbarch_data_registration **curr;
2124 /* Append the new registration. */
2125 for (curr = &gdbarch_data_registry.registrations;
2127 curr = &(*curr)->next);
2128 (*curr) = XNEW (struct gdbarch_data_registration);
2129 (*curr)->next = NULL;
2130 (*curr)->data = XNEW (struct gdbarch_data);
2131 (*curr)->data->index = gdbarch_data_registry.nr++;
2132 (*curr)->data->pre_init = pre_init;
2133 (*curr)->data->post_init = post_init;
2134 (*curr)->data->init_p = 1;
2135 return (*curr)->data;
2138 struct gdbarch_data *
2139 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
2141 return gdbarch_data_register (pre_init, NULL);
2144 struct gdbarch_data *
2145 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
2147 return gdbarch_data_register (NULL, post_init);
2150 /* Create/delete the gdbarch data vector. */
2153 alloc_gdbarch_data (struct gdbarch *gdbarch)
2155 gdb_assert (gdbarch->data == NULL);
2156 gdbarch->nr_data = gdbarch_data_registry.nr;
2157 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
2160 /* Initialize the current value of the specified per-architecture
2164 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
2165 struct gdbarch_data *data,
2168 gdb_assert (data->index < gdbarch->nr_data);
2169 gdb_assert (gdbarch->data[data->index] == NULL);
2170 gdb_assert (data->pre_init == NULL);
2171 gdbarch->data[data->index] = pointer;
2174 /* Return the current value of the specified per-architecture
2178 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
2180 gdb_assert (data->index < gdbarch->nr_data);
2181 if (gdbarch->data[data->index] == NULL)
2183 /* The data-pointer isn't initialized, call init() to get a
2185 if (data->pre_init != NULL)
2186 /* Mid architecture creation: pass just the obstack, and not
2187 the entire architecture, as that way it isn't possible for
2188 pre-init code to refer to undefined architecture
2190 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
2191 else if (gdbarch->initialized_p
2192 && data->post_init != NULL)
2193 /* Post architecture creation: pass the entire architecture
2194 (as all fields are valid), but be careful to also detect
2195 recursive references. */
2197 gdb_assert (data->init_p);
2199 gdbarch->data[data->index] = data->post_init (gdbarch);
2203 /* The architecture initialization hasn't completed - punt -
2204 hope that the caller knows what they are doing. Once
2205 deprecated_set_gdbarch_data has been initialized, this can be
2206 changed to an internal error. */
2208 gdb_assert (gdbarch->data[data->index] != NULL);
2210 return gdbarch->data[data->index];
2214 /* Keep a registry of the architectures known by GDB. */
2216 struct gdbarch_registration
2218 enum bfd_architecture bfd_architecture;
2219 gdbarch_init_ftype *init;
2220 gdbarch_dump_tdep_ftype *dump_tdep;
2221 struct gdbarch_list *arches;
2222 struct gdbarch_registration *next;
2225 static struct gdbarch_registration *gdbarch_registry = NULL;
2228 append_name (const char ***buf, int *nr, const char *name)
2230 *buf = XRESIZEVEC (const char *, *buf, *nr + 1);
2236 gdbarch_printable_names (void)
2238 /* Accumulate a list of names based on the registed list of
2241 const char **arches = NULL;
2242 struct gdbarch_registration *rego;
2244 for (rego = gdbarch_registry;
2248 const struct bfd_arch_info *ap;
2249 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2251 internal_error (__FILE__, __LINE__,
2252 _("gdbarch_architecture_names: multi-arch unknown"));
2255 append_name (&arches, &nr_arches, ap->printable_name);
2260 append_name (&arches, &nr_arches, NULL);
2266 gdbarch_register (enum bfd_architecture bfd_architecture,
2267 gdbarch_init_ftype *init,
2268 gdbarch_dump_tdep_ftype *dump_tdep)
2270 struct gdbarch_registration **curr;
2271 const struct bfd_arch_info *bfd_arch_info;
2273 /* Check that BFD recognizes this architecture */
2274 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2275 if (bfd_arch_info == NULL)
2277 internal_error (__FILE__, __LINE__,
2278 _("gdbarch: Attempt to register "
2279 "unknown architecture (%d)"),
2282 /* Check that we haven't seen this architecture before. */
2283 for (curr = &gdbarch_registry;
2285 curr = &(*curr)->next)
2287 if (bfd_architecture == (*curr)->bfd_architecture)
2288 internal_error (__FILE__, __LINE__,
2289 _("gdbarch: Duplicate registration "
2290 "of architecture (%s)"),
2291 bfd_arch_info->printable_name);
2295 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
2296 bfd_arch_info->printable_name,
2297 host_address_to_string (init));
2299 (*curr) = XNEW (struct gdbarch_registration);
2300 (*curr)->bfd_architecture = bfd_architecture;
2301 (*curr)->init = init;
2302 (*curr)->dump_tdep = dump_tdep;
2303 (*curr)->arches = NULL;
2304 (*curr)->next = NULL;
2308 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2309 gdbarch_init_ftype *init)
2311 gdbarch_register (bfd_architecture, init, NULL);
2315 /* Look for an architecture using gdbarch_info. */
2317 struct gdbarch_list *
2318 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2319 const struct gdbarch_info *info)
2321 for (; arches != NULL; arches = arches->next)
2323 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2325 if (info->byte_order != arches->gdbarch->byte_order)
2327 if (info->osabi != arches->gdbarch->osabi)
2329 if (info->target_desc != arches->gdbarch->target_desc)
2337 /* Find an architecture that matches the specified INFO. Create a new
2338 architecture if needed. Return that new architecture. */
2341 gdbarch_find_by_info (struct gdbarch_info info)
2343 struct gdbarch *new_gdbarch;
2344 struct gdbarch_registration *rego;
2346 /* Fill in missing parts of the INFO struct using a number of
2347 sources: "set ..."; INFOabfd supplied; and the global
2349 gdbarch_info_fill (&info);
2351 /* Must have found some sort of architecture. */
2352 gdb_assert (info.bfd_arch_info != NULL);
2356 fprintf_unfiltered (gdb_stdlog,
2357 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2358 (info.bfd_arch_info != NULL
2359 ? info.bfd_arch_info->printable_name
2361 fprintf_unfiltered (gdb_stdlog,
2362 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2364 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2365 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2367 fprintf_unfiltered (gdb_stdlog,
2368 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2369 info.osabi, gdbarch_osabi_name (info.osabi));
2370 fprintf_unfiltered (gdb_stdlog,
2371 "gdbarch_find_by_info: info.abfd %s\n",
2372 host_address_to_string (info.abfd));
2373 fprintf_unfiltered (gdb_stdlog,
2374 "gdbarch_find_by_info: info.tdep_info %s\n",
2375 host_address_to_string (info.tdep_info));
2378 /* Find the tdep code that knows about this architecture. */
2379 for (rego = gdbarch_registry;
2382 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2387 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2388 "No matching architecture\n");
2392 /* Ask the tdep code for an architecture that matches "info". */
2393 new_gdbarch = rego->init (info, rego->arches);
2395 /* Did the tdep code like it? No. Reject the change and revert to
2396 the old architecture. */
2397 if (new_gdbarch == NULL)
2400 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2401 "Target rejected architecture\n");
2405 /* Is this a pre-existing architecture (as determined by already
2406 being initialized)? Move it to the front of the architecture
2407 list (keeping the list sorted Most Recently Used). */
2408 if (new_gdbarch->initialized_p)
2410 struct gdbarch_list **list;
2411 struct gdbarch_list *self;
2413 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2414 "Previous architecture %s (%s) selected\n",
2415 host_address_to_string (new_gdbarch),
2416 new_gdbarch->bfd_arch_info->printable_name);
2417 /* Find the existing arch in the list. */
2418 for (list = ®o->arches;
2419 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2420 list = &(*list)->next);
2421 /* It had better be in the list of architectures. */
2422 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2425 (*list) = self->next;
2426 /* Insert SELF at the front. */
2427 self->next = rego->arches;
2428 rego->arches = self;
2433 /* It's a new architecture. */
2435 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2436 "New architecture %s (%s) selected\n",
2437 host_address_to_string (new_gdbarch),
2438 new_gdbarch->bfd_arch_info->printable_name);
2440 /* Insert the new architecture into the front of the architecture
2441 list (keep the list sorted Most Recently Used). */
2443 struct gdbarch_list *self = XNEW (struct gdbarch_list);
2444 self->next = rego->arches;
2445 self->gdbarch = new_gdbarch;
2446 rego->arches = self;
2449 /* Check that the newly installed architecture is valid. Plug in
2450 any post init values. */
2451 new_gdbarch->dump_tdep = rego->dump_tdep;
2452 verify_gdbarch (new_gdbarch);
2453 new_gdbarch->initialized_p = 1;
2456 gdbarch_dump (new_gdbarch, gdb_stdlog);
2461 /* Make the specified architecture current. */
2464 set_target_gdbarch (struct gdbarch *new_gdbarch)
2466 gdb_assert (new_gdbarch != NULL);
2467 gdb_assert (new_gdbarch->initialized_p);
2468 current_inferior ()->gdbarch = new_gdbarch;
2469 observer_notify_architecture_changed (new_gdbarch);
2470 registers_changed ();
2473 /* Return the current inferior's arch. */
2476 target_gdbarch (void)
2478 return current_inferior ()->gdbarch;
2481 extern void _initialize_gdbarch (void);
2484 _initialize_gdbarch (void)
2486 add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2487 Set architecture debugging."), _("\\
2488 Show architecture debugging."), _("\\
2489 When non-zero, architecture debugging is enabled."),
2492 &setdebuglist, &showdebuglist);
2498 #../move-if-change new-gdbarch.c gdbarch.c
2499 compare_new gdbarch.c