3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998-2020 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 "${line}" : "#" > /dev
/null
67 # The semantics of IFS varies between different SH's. Some
68 # treat ``;;' as three fields while some treat it as just two.
69 # Work around this by eliminating ``;;'' ....
70 line
="`echo "${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 # Number of bits in a short or unsigned short for the target machine.
351 v;int;short_bit;;;8 * sizeof (short);2*TARGET_CHAR_BIT;;0
352 # Number of bits in an int or unsigned int for the target machine.
353 v;int;int_bit;;;8 * sizeof (int);4*TARGET_CHAR_BIT;;0
354 # Number of bits in a long or unsigned long for the target machine.
355 v;int;long_bit;;;8 * sizeof (long);4*TARGET_CHAR_BIT;;0
356 # Number of bits in a long long or unsigned long long for the target
358 v;int;long_long_bit;;;8 * sizeof (LONGEST);2*gdbarch->long_bit;;0
360 # The ABI default bit-size and format for "half", "float", "double", and
361 # "long double". These bit/format pairs should eventually be combined
362 # into a single object. For the moment, just initialize them as a pair.
363 # Each format describes both the big and little endian layouts (if
366 v;int;half_bit;;;16;2*TARGET_CHAR_BIT;;0
367 v;const struct floatformat **;half_format;;;;;floatformats_ieee_half;;pformat (gdbarch->half_format)
368 v;int;float_bit;;;8 * sizeof (float);4*TARGET_CHAR_BIT;;0
369 v;const struct floatformat **;float_format;;;;;floatformats_ieee_single;;pformat (gdbarch->float_format)
370 v;int;double_bit;;;8 * sizeof (double);8*TARGET_CHAR_BIT;;0
371 v;const struct floatformat **;double_format;;;;;floatformats_ieee_double;;pformat (gdbarch->double_format)
372 v;int;long_double_bit;;;8 * sizeof (long double);8*TARGET_CHAR_BIT;;0
373 v;const struct floatformat **;long_double_format;;;;;floatformats_ieee_double;;pformat (gdbarch->long_double_format)
375 # The ABI default bit-size for "wchar_t". wchar_t is a built-in type
376 # starting with C++11.
377 v;int;wchar_bit;;;8 * sizeof (wchar_t);4*TARGET_CHAR_BIT;;0
378 # One if \`wchar_t' is signed, zero if unsigned.
379 v;int;wchar_signed;;;1;-1;1
381 # Returns the floating-point format to be used for values of length LENGTH.
382 # NAME, if non-NULL, is the type name, which may be used to distinguish
383 # different target formats of the same length.
384 m;const struct floatformat **;floatformat_for_type;const char *name, int length;name, length;0;default_floatformat_for_type;;0
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;readable_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;readable_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;readable_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 # Generate a dummy frame_id for THIS_FRAME assuming that the frame is
480 # a dummy frame. A dummy frame is created before an inferior call,
481 # the frame_id returned here must match the frame_id that was built
482 # for the inferior call. Usually this means the returned frame_id's
483 # stack address should match the address returned by
484 # gdbarch_push_dummy_call, and the returned frame_id's code address
485 # should match the address at which the breakpoint was set in the dummy
487 m;struct frame_id;dummy_id;struct frame_info *this_frame;this_frame;;default_dummy_id;;0
488 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
489 # deprecated_fp_regnum.
490 v;int;deprecated_fp_regnum;;;-1;-1;;0
492 M;CORE_ADDR;push_dummy_call;struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr;function, regcache, bp_addr, nargs, args, sp, return_method, struct_addr
493 v;int;call_dummy_location;;;;AT_ENTRY_POINT;;0
494 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
496 # Return true if the code of FRAME is writable.
497 m;int;code_of_frame_writable;struct frame_info *frame;frame;;default_code_of_frame_writable;;0
499 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
500 m;void;print_float_info;struct ui_file *file, struct frame_info *frame, const char *args;file, frame, args;;default_print_float_info;;0
501 M;void;print_vector_info;struct ui_file *file, struct frame_info *frame, const char *args;file, frame, args
502 # MAP a GDB RAW register number onto a simulator register number. See
503 # also include/...-sim.h.
504 m;int;register_sim_regno;int reg_nr;reg_nr;;legacy_register_sim_regno;;0
505 m;int;cannot_fetch_register;int regnum;regnum;;cannot_register_not;;0
506 m;int;cannot_store_register;int regnum;regnum;;cannot_register_not;;0
508 # Determine the address where a longjmp will land and save this address
509 # in PC. Return nonzero on success.
511 # FRAME corresponds to the longjmp frame.
512 F;int;get_longjmp_target;struct frame_info *frame, CORE_ADDR *pc;frame, pc
515 v;int;believe_pcc_promotion;;;;;;;
517 m;int;convert_register_p;int regnum, struct type *type;regnum, type;0;generic_convert_register_p;;0
518 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
519 f;void;value_to_register;struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf;frame, regnum, type, buf;0
520 # Construct a value representing the contents of register REGNUM in
521 # frame FRAME_ID, interpreted as type TYPE. The routine needs to
522 # allocate and return a struct value with all value attributes
523 # (but not the value contents) filled in.
524 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
526 m;CORE_ADDR;pointer_to_address;struct type *type, const gdb_byte *buf;type, buf;;unsigned_pointer_to_address;;0
527 m;void;address_to_pointer;struct type *type, gdb_byte *buf, CORE_ADDR addr;type, buf, addr;;unsigned_address_to_pointer;;0
528 M;CORE_ADDR;integer_to_address;struct type *type, const gdb_byte *buf;type, buf
530 # Return the return-value convention that will be used by FUNCTION
531 # to return a value of type VALTYPE. FUNCTION may be NULL in which
532 # case the return convention is computed based only on VALTYPE.
534 # If READBUF is not NULL, extract the return value and save it in this buffer.
536 # If WRITEBUF is not NULL, it contains a return value which will be
537 # stored into the appropriate register. This can be used when we want
538 # to force the value returned by a function (see the "return" command
540 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
542 # Return true if the return value of function is stored in the first hidden
543 # parameter. In theory, this feature should be language-dependent, specified
544 # by language and its ABI, such as C++. Unfortunately, compiler may
545 # implement it to a target-dependent feature. So that we need such hook here
546 # to be aware of this in GDB.
547 m;int;return_in_first_hidden_param_p;struct type *type;type;;default_return_in_first_hidden_param_p;;0
549 m;CORE_ADDR;skip_prologue;CORE_ADDR ip;ip;0;0
550 M;CORE_ADDR;skip_main_prologue;CORE_ADDR ip;ip
551 # On some platforms, a single function may provide multiple entry points,
552 # e.g. one that is used for function-pointer calls and a different one
553 # that is used for direct function calls.
554 # In order to ensure that breakpoints set on the function will trigger
555 # no matter via which entry point the function is entered, a platform
556 # may provide the skip_entrypoint callback. It is called with IP set
557 # to the main entry point of a function (as determined by the symbol table),
558 # and should return the address of the innermost entry point, where the
559 # actual breakpoint needs to be set. Note that skip_entrypoint is used
560 # by GDB common code even when debugging optimized code, where skip_prologue
562 M;CORE_ADDR;skip_entrypoint;CORE_ADDR ip;ip
564 f;int;inner_than;CORE_ADDR lhs, CORE_ADDR rhs;lhs, rhs;0;0
565 m;const gdb_byte *;breakpoint_from_pc;CORE_ADDR *pcptr, int *lenptr;pcptr, lenptr;0;default_breakpoint_from_pc;;0
567 # Return the breakpoint kind for this target based on *PCPTR.
568 m;int;breakpoint_kind_from_pc;CORE_ADDR *pcptr;pcptr;;0;
570 # Return the software breakpoint from KIND. KIND can have target
571 # specific meaning like the Z0 kind parameter.
572 # SIZE is set to the software breakpoint's length in memory.
573 m;const gdb_byte *;sw_breakpoint_from_kind;int kind, int *size;kind, size;;NULL;;0
575 # Return the breakpoint kind for this target based on the current
576 # processor state (e.g. the current instruction mode on ARM) and the
577 # *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc.
578 m;int;breakpoint_kind_from_current_state;struct regcache *regcache, CORE_ADDR *pcptr;regcache, pcptr;0;default_breakpoint_kind_from_current_state;;0
580 M;CORE_ADDR;adjust_breakpoint_address;CORE_ADDR bpaddr;bpaddr
581 m;int;memory_insert_breakpoint;struct bp_target_info *bp_tgt;bp_tgt;0;default_memory_insert_breakpoint;;0
582 m;int;memory_remove_breakpoint;struct bp_target_info *bp_tgt;bp_tgt;0;default_memory_remove_breakpoint;;0
583 v;CORE_ADDR;decr_pc_after_break;;;0;;;0
585 # A function can be addressed by either it's "pointer" (possibly a
586 # descriptor address) or "entry point" (first executable instruction).
587 # The method "convert_from_func_ptr_addr" converting the former to the
588 # latter. gdbarch_deprecated_function_start_offset is being used to implement
589 # a simplified subset of that functionality - the function's address
590 # corresponds to the "function pointer" and the function's start
591 # corresponds to the "function entry point" - and hence is redundant.
593 v;CORE_ADDR;deprecated_function_start_offset;;;0;;;0
595 # Return the remote protocol register number associated with this
596 # register. Normally the identity mapping.
597 m;int;remote_register_number;int regno;regno;;default_remote_register_number;;0
599 # Fetch the target specific address used to represent a load module.
600 F;CORE_ADDR;fetch_tls_load_module_address;struct objfile *objfile;objfile
602 # Return the thread-local address at OFFSET in the thread-local
603 # storage for the thread PTID and the shared library or executable
604 # file given by LM_ADDR. If that block of thread-local storage hasn't
605 # been allocated yet, this function may throw an error. LM_ADDR may
606 # be zero for statically linked multithreaded inferiors.
608 M;CORE_ADDR;get_thread_local_address;ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset;ptid, lm_addr, offset
610 v;CORE_ADDR;frame_args_skip;;;0;;;0
611 m;CORE_ADDR;unwind_pc;struct frame_info *next_frame;next_frame;;default_unwind_pc;;0
612 m;CORE_ADDR;unwind_sp;struct frame_info *next_frame;next_frame;;default_unwind_sp;;0
613 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
614 # frame-base. Enable frame-base before frame-unwind.
615 F;int;frame_num_args;struct frame_info *frame;frame
617 M;CORE_ADDR;frame_align;CORE_ADDR address;address
618 m;int;stabs_argument_has_addr;struct type *type;type;;default_stabs_argument_has_addr;;0
619 v;int;frame_red_zone_size
621 m;CORE_ADDR;convert_from_func_ptr_addr;CORE_ADDR addr, struct target_ops *targ;addr, targ;;convert_from_func_ptr_addr_identity;;0
622 # On some machines there are bits in addresses which are not really
623 # part of the address, but are used by the kernel, the hardware, etc.
624 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
625 # we get a "real" address such as one would find in a symbol table.
626 # This is used only for addresses of instructions, and even then I'm
627 # not sure it's used in all contexts. It exists to deal with there
628 # being a few stray bits in the PC which would mislead us, not as some
629 # sort of generic thing to handle alignment or segmentation (it's
630 # possible it should be in TARGET_READ_PC instead).
631 m;CORE_ADDR;addr_bits_remove;CORE_ADDR addr;addr;;core_addr_identity;;0
633 # On some machines, not all bits of an address word are significant.
634 # For example, on AArch64, the top bits of an address known as the "tag"
635 # are ignored by the kernel, the hardware, etc. and can be regarded as
636 # additional data associated with the address.
637 v;int;significant_addr_bit;;;;;;0
639 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
640 # indicates if the target needs software single step. An ISA method to
643 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
644 # target can single step. If not, then implement single step using breakpoints.
646 # Return a vector of addresses on which the software single step
647 # breakpoints should be inserted. NULL means software single step is
649 # Multiple breakpoints may be inserted for some instructions such as
650 # conditional branch. However, each implementation must always evaluate
651 # the condition and only put the breakpoint at the branch destination if
652 # the condition is true, so that we ensure forward progress when stepping
653 # past a conditional branch to self.
654 F;std::vector<CORE_ADDR>;software_single_step;struct regcache *regcache;regcache
656 # Return non-zero if the processor is executing a delay slot and a
657 # further single-step is needed before the instruction finishes.
658 M;int;single_step_through_delay;struct frame_info *frame;frame
659 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
660 # disassembler. Perhaps objdump can handle it?
661 f;int;print_insn;bfd_vma vma, struct disassemble_info *info;vma, info;;default_print_insn;;0
662 f;CORE_ADDR;skip_trampoline_code;struct frame_info *frame, CORE_ADDR pc;frame, pc;;generic_skip_trampoline_code;;0
665 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
666 # evaluates non-zero, this is the address where the debugger will place
667 # a step-resume breakpoint to get us past the dynamic linker.
668 m;CORE_ADDR;skip_solib_resolver;CORE_ADDR pc;pc;;generic_skip_solib_resolver;;0
669 # Some systems also have trampoline code for returning from shared libs.
670 m;int;in_solib_return_trampoline;CORE_ADDR pc, const char *name;pc, name;;generic_in_solib_return_trampoline;;0
672 # Return true if PC lies inside an indirect branch thunk.
673 m;bool;in_indirect_branch_thunk;CORE_ADDR pc;pc;;default_in_indirect_branch_thunk;;0
675 # A target might have problems with watchpoints as soon as the stack
676 # frame of the current function has been destroyed. This mostly happens
677 # as the first action in a function's epilogue. stack_frame_destroyed_p()
678 # is defined to return a non-zero value if either the given addr is one
679 # instruction after the stack destroying instruction up to the trailing
680 # return instruction or if we can figure out that the stack frame has
681 # already been invalidated regardless of the value of addr. Targets
682 # which don't suffer from that problem could just let this functionality
684 m;int;stack_frame_destroyed_p;CORE_ADDR addr;addr;0;generic_stack_frame_destroyed_p;;0
685 # Process an ELF symbol in the minimal symbol table in a backend-specific
686 # way. Normally this hook is supposed to do nothing, however if required,
687 # then this hook can be used to apply tranformations to symbols that are
688 # considered special in some way. For example the MIPS backend uses it
689 # to interpret \`st_other' information to mark compressed code symbols so
690 # that they can be treated in the appropriate manner in the processing of
691 # the main symbol table and DWARF-2 records.
692 F;void;elf_make_msymbol_special;asymbol *sym, struct minimal_symbol *msym;sym, msym
693 f;void;coff_make_msymbol_special;int val, struct minimal_symbol *msym;val, msym;;default_coff_make_msymbol_special;;0
694 # Process a symbol in the main symbol table in a backend-specific way.
695 # Normally this hook is supposed to do nothing, however if required,
696 # then this hook can be used to apply tranformations to symbols that
697 # are considered special in some way. This is currently used by the
698 # MIPS backend to make sure compressed code symbols have the ISA bit
699 # set. This in turn is needed for symbol values seen in GDB to match
700 # the values used at the runtime by the program itself, for function
701 # and label references.
702 f;void;make_symbol_special;struct symbol *sym, struct objfile *objfile;sym, objfile;;default_make_symbol_special;;0
703 # Adjust the address retrieved from a DWARF-2 record other than a line
704 # entry in a backend-specific way. Normally this hook is supposed to
705 # return the address passed unchanged, however if that is incorrect for
706 # any reason, then this hook can be used to fix the address up in the
707 # required manner. This is currently used by the MIPS backend to make
708 # sure addresses in FDE, range records, etc. referring to compressed
709 # code have the ISA bit set, matching line information and the symbol
711 f;CORE_ADDR;adjust_dwarf2_addr;CORE_ADDR pc;pc;;default_adjust_dwarf2_addr;;0
712 # Adjust the address updated by a line entry in a backend-specific way.
713 # Normally this hook is supposed to return the address passed unchanged,
714 # however in the case of inconsistencies in these records, this hook can
715 # be used to fix them up in the required manner. This is currently used
716 # by the MIPS backend to make sure all line addresses in compressed code
717 # are presented with the ISA bit set, which is not always the case. This
718 # in turn ensures breakpoint addresses are correctly matched against the
720 f;CORE_ADDR;adjust_dwarf2_line;CORE_ADDR addr, int rel;addr, rel;;default_adjust_dwarf2_line;;0
721 v;int;cannot_step_breakpoint;;;0;0;;0
722 # See comment in target.h about continuable, steppable and
723 # non-steppable watchpoints.
724 v;int;have_nonsteppable_watchpoint;;;0;0;;0
725 F;int;address_class_type_flags;int byte_size, int dwarf2_addr_class;byte_size, dwarf2_addr_class
726 M;const char *;address_class_type_flags_to_name;int type_flags;type_flags
727 # Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
728 # FS are passed from the generic execute_cfa_program function.
729 m;bool;execute_dwarf_cfa_vendor_op;gdb_byte op, struct dwarf2_frame_state *fs;op, fs;;default_execute_dwarf_cfa_vendor_op;;0
731 # Return the appropriate type_flags for the supplied address class.
732 # This function should return 1 if the address class was recognized and
733 # type_flags was set, zero otherwise.
734 M;int;address_class_name_to_type_flags;const char *name, int *type_flags_ptr;name, type_flags_ptr
735 # Is a register in a group
736 m;int;register_reggroup_p;int regnum, struct reggroup *reggroup;regnum, reggroup;;default_register_reggroup_p;;0
737 # Fetch the pointer to the ith function argument.
738 F;CORE_ADDR;fetch_pointer_argument;struct frame_info *frame, int argi, struct type *type;frame, argi, type
740 # Iterate over all supported register notes in a core file. For each
741 # supported register note section, the iterator must call CB and pass
742 # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
743 # the supported register note sections based on the current register
744 # values. Otherwise it should enumerate all supported register note
746 M;void;iterate_over_regset_sections;iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache;cb, cb_data, regcache
748 # Create core file notes
749 M;char *;make_corefile_notes;bfd *obfd, int *note_size;obfd, note_size
751 # Find core file memory regions
752 M;int;find_memory_regions;find_memory_region_ftype func, void *data;func, data
754 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
755 # core file into buffer READBUF with length LEN. Return the number of bytes read
756 # (zero indicates failure).
757 # failed, otherwise, return the red length of READBUF.
758 M;ULONGEST;core_xfer_shared_libraries;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len
760 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
761 # libraries list from core file into buffer READBUF with length LEN.
762 # Return the number of bytes read (zero indicates failure).
763 M;ULONGEST;core_xfer_shared_libraries_aix;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len
765 # How the core target converts a PTID from a core file to a string.
766 M;std::string;core_pid_to_str;ptid_t ptid;ptid
768 # How the core target extracts the name of a thread from a core file.
769 M;const char *;core_thread_name;struct thread_info *thr;thr
771 # Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
772 # from core file into buffer READBUF with length LEN. Return the number
773 # of bytes read (zero indicates EOF, a negative value indicates failure
).
774 M
;LONGEST
;core_xfer_siginfo
;gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
; readbuf
, offset
, len
776 # BFD target to use when generating a core file.
777 V
;const char
*;gcore_bfd_target
;;;0;0;;;pstring
(gdbarch-
>gcore_bfd_target
)
779 # If the elements of C++ vtables are in-place function descriptors rather
780 # than normal function pointers (which may point to code or a descriptor),
782 v
;int
;vtable_function_descriptors
;;;0;0;;0
784 # Set if the least significant bit of the delta is used instead of the least
785 # significant bit of the pfn for pointers to virtual member functions.
786 v
;int
;vbit_in_delta
;;;0;0;;0
788 # Advance PC to next instruction in order to skip a permanent breakpoint.
789 f
;void
;skip_permanent_breakpoint
;struct regcache
*regcache
;regcache
;default_skip_permanent_breakpoint
;default_skip_permanent_breakpoint
;;0
791 # The maximum length of an instruction on this architecture in bytes.
792 V
;ULONGEST
;max_insn_length
;;;0;0
794 # Copy the instruction at FROM to TO, and make any adjustments
795 # necessary to single-step it at that address.
797 # REGS holds the state the thread's registers will have before
798 # executing the copied instruction; the PC in REGS will refer to FROM,
799 # not the copy at TO. The caller should update it to point at TO later.
801 # Return a pointer to data of the architecture's choice to be passed
802 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
803 # the instruction's effects have been completely simulated, with the
804 # resulting state written back to REGS.
806 # For a general explanation of displaced stepping and how GDB uses it,
807 # see the comments in infrun.c.
809 # The TO area is only guaranteed to have space for
810 # gdbarch_max_insn_length (arch) bytes, so this function must not
811 # write more bytes than that to that area.
813 # If you do not provide this function, GDB assumes that the
814 # architecture does not support displaced stepping.
816 # If the instruction cannot execute out of line, return NULL. The
817 # core falls back to stepping past the instruction in-line instead in
819 M
;displaced_step_closure_up
;displaced_step_copy_insn
;CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
;from
, to
, regs
821 # Return true if GDB should use hardware single-stepping to execute
822 # the displaced instruction identified by CLOSURE. If false,
823 # GDB will simply restart execution at the displaced instruction
824 # location, and it is up to the target to ensure GDB will receive
825 # control again (e.g. by placing a software breakpoint instruction
826 # into the displaced instruction buffer).
828 # The default implementation returns false on all targets that
829 # provide a gdbarch_software_single_step routine, and true otherwise.
830 m
;int
;displaced_step_hw_singlestep
;struct displaced_step_closure
*closure
;closure
;;default_displaced_step_hw_singlestep
;;0
832 # Fix up the state resulting from successfully single-stepping a
833 # displaced instruction, to give the result we would have gotten from
834 # stepping the instruction in its original location.
836 # REGS is the register state resulting from single-stepping the
837 # displaced instruction.
839 # CLOSURE is the result from the matching call to
840 # gdbarch_displaced_step_copy_insn.
842 # If you provide gdbarch_displaced_step_copy_insn.but not this
843 # function, then GDB assumes that no fixup is needed after
844 # single-stepping the instruction.
846 # For a general explanation of displaced stepping and how GDB uses it,
847 # see the comments in infrun.c.
848 M
;void
;displaced_step_fixup
;struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
;closure
, from
, to
, regs
;;NULL
850 # Return the address of an appropriate place to put displaced
851 # instructions while we step over them. There need only be one such
852 # place, since we're only stepping one thread over a breakpoint at a
855 # For a general explanation of displaced stepping and how GDB uses it,
856 # see the comments in infrun.c.
857 m
;CORE_ADDR
;displaced_step_location
;void
;;;NULL
;;(! gdbarch-
>displaced_step_location
) != (! gdbarch-
>displaced_step_copy_insn
)
859 # Relocate an instruction to execute at a different address. OLDLOC
860 # is the address in the inferior memory where the instruction to
861 # relocate is currently at. On input, TO points to the destination
862 # where we want the instruction to be copied (and possibly adjusted)
863 # to. On output, it points to one past the end of the resulting
864 # instruction(s). The effect of executing the instruction at TO shall
865 # be the same as if executing it at FROM. For example, call
866 # instructions that implicitly push the return address on the stack
867 # should be adjusted to return to the instruction after OLDLOC;
868 # relative branches, and other PC-relative instructions need the
869 # offset adjusted; etc.
870 M
;void
;relocate_instruction
;CORE_ADDR
*to
, CORE_ADDR from
;to
, from
;;NULL
872 # Refresh overlay mapped state for section OSECT.
873 F
;void
;overlay_update
;struct obj_section
*osect
;osect
875 M
;const struct target_desc
*;core_read_description
;struct target_ops
*target
, bfd
*abfd
;target
, abfd
877 # Handle special encoding of static variables in stabs debug info.
878 F
;const char
*;static_transform_name
;const char
*name
;name
879 # Set if the address in N_SO or N_FUN stabs may be zero.
880 v
;int
;sofun_address_maybe_missing
;;;0;0;;0
882 # Parse the instruction at ADDR storing in the record execution log
883 # the registers REGCACHE and memory ranges that will be affected when
884 # the instruction executes, along with their current values.
885 # Return -1 if something goes wrong, 0 otherwise.
886 M
;int
;process_record
;struct regcache
*regcache
, CORE_ADDR addr
;regcache
, addr
888 # Save process state after a signal.
889 # Return -1 if something goes wrong, 0 otherwise.
890 M
;int
;process_record_signal
;struct regcache
*regcache
, enum gdb_signal signal
;regcache
, signal
892 # Signal translation: translate inferior's signal (target's) number
893 # into GDB's representation. The implementation of this method must
894 # be host independent. IOW, don't rely on symbols of the NAT_FILE
895 # header (the nm-*.h files), the host <signal.h> header, or similar
896 # headers. This is mainly used when cross-debugging core files ---
897 # "Live" targets hide the translation behind the target interface
898 # (target_wait, target_resume, etc.).
899 M
;enum gdb_signal
;gdb_signal_from_target
;int signo
;signo
901 # Signal translation: translate the GDB's internal signal number into
902 # the inferior's signal (target's) representation. The implementation
903 # of this method must be host independent. IOW, don't rely on symbols
904 # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
905 # header, or similar headers.
906 # Return the target signal number if found, or -1 if the GDB internal
907 # signal number is invalid.
908 M
;int
;gdb_signal_to_target
;enum gdb_signal signal
;signal
910 # Extra signal info inspection.
912 # Return a type suitable to inspect extra signal information.
913 M
;struct
type *;get_siginfo_type
;void
;
915 # Record architecture-specific information from the symbol table.
916 M
;void
;record_special_symbol
;struct objfile
*objfile
, asymbol
*sym
;objfile
, sym
918 # Function for the 'catch syscall' feature.
920 # Get architecture-specific system calls information from registers.
921 M
;LONGEST
;get_syscall_number
;thread_info
*thread
;thread
923 # The filename of the XML syscall for this architecture.
924 v
;const char
*;xml_syscall_file
;;;0;0;;0;pstring
(gdbarch-
>xml_syscall_file
)
926 # Information about system calls from this architecture
927 v
;struct syscalls_info
*;syscalls_info
;;;0;0;;0;host_address_to_string
(gdbarch-
>syscalls_info
)
929 # SystemTap related fields and functions.
931 # A NULL-terminated array of prefixes used to mark an integer constant
932 # on the architecture's assembly.
933 # For example, on x86 integer constants are written as:
935 # \$10 ;; integer constant 10
937 # in this case, this prefix would be the character \`\$\'.
938 v
;const char
*const
*;stap_integer_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_integer_prefixes
)
940 # A NULL-terminated array of suffixes used to mark an integer constant
941 # on the architecture's assembly.
942 v
;const char
*const
*;stap_integer_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_integer_suffixes
)
944 # A NULL-terminated array of prefixes used to mark a register name on
945 # the architecture's assembly.
946 # For example, on x86 the register name is written as:
948 # \%eax ;; register eax
950 # in this case, this prefix would be the character \`\%\'.
951 v
;const char
*const
*;stap_register_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_prefixes
)
953 # A NULL-terminated array of suffixes used to mark a register name on
954 # the architecture's assembly.
955 v
;const char
*const
*;stap_register_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_suffixes
)
957 # A NULL-terminated array of prefixes used to mark a register
958 # indirection on the architecture's assembly.
959 # For example, on x86 the register indirection is written as:
961 # \(\%eax\) ;; indirecting eax
963 # in this case, this prefix would be the charater \`\(\'.
965 # Please note that we use the indirection prefix also for register
966 # displacement, e.g., \`4\(\%eax\)\' on x86.
967 v
;const char
*const
*;stap_register_indirection_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_indirection_prefixes
)
969 # A NULL-terminated array of suffixes used to mark a register
970 # indirection on the architecture's assembly.
971 # For example, on x86 the register indirection is written as:
973 # \(\%eax\) ;; indirecting eax
975 # in this case, this prefix would be the charater \`\)\'.
977 # Please note that we use the indirection suffix also for register
978 # displacement, e.g., \`4\(\%eax\)\' on x86.
979 v
;const char
*const
*;stap_register_indirection_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_indirection_suffixes
)
981 # Prefix(es) used to name a register using GDB's nomenclature.
983 # For example, on PPC a register is represented by a number in the assembly
984 # language (e.g., \`10\' is the 10th general-purpose register). However,
985 # inside GDB this same register has an \`r\' appended to its name, so the 10th
986 # register would be represented as \`r10\' internally.
987 v
;const char
*;stap_gdb_register_prefix
;;;0;0;;0;pstring
(gdbarch-
>stap_gdb_register_prefix
)
989 # Suffix used to name a register using GDB's nomenclature.
990 v
;const char
*;stap_gdb_register_suffix
;;;0;0;;0;pstring
(gdbarch-
>stap_gdb_register_suffix
)
992 # Check if S is a single operand.
994 # Single operands can be:
995 # \- Literal integers, e.g. \`\$10\' on x86
996 # \- Register access, e.g. \`\%eax\' on x86
997 # \- Register indirection, e.g. \`\(\%eax\)\' on x86
998 # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
1000 # This function should check for these patterns on the string
1001 # and return 1 if some were found, or zero otherwise. Please try to match
1002 # as much info as you can from the string, i.e., if you have to match
1003 # something like \`\(\%\', do not match just the \`\(\'.
1004 M
;int
;stap_is_single_operand
;const char
*s
;s
1006 # Function used to handle a "special case" in the parser.
1008 # A "special case" is considered to be an unknown token, i.e., a token
1009 # that the parser does not know how to parse. A good example of special
1010 # case would be ARM's register displacement syntax:
1012 # [R0, #4] ;; displacing R0 by 4
1014 # Since the parser assumes that a register displacement is of the form:
1016 # <number> <indirection_prefix> <register_name> <indirection_suffix>
1018 # it means that it will not be able to recognize and parse this odd syntax.
1019 # Therefore, we should add a special case function that will handle this token.
1021 # This function should generate the proper expression form of the expression
1022 # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
1023 # and so on). It should also return 1 if the parsing was successful, or zero
1024 # if the token was not recognized as a special token (in this case, returning
1025 # zero means that the special parser is deferring the parsing to the generic
1026 # parser), and should advance the buffer pointer (p->arg).
1027 M
;int
;stap_parse_special_token
;struct stap_parse_info
*p
;p
1029 # Perform arch-dependent adjustments to a register name.
1031 # In very specific situations, it may be necessary for the register
1032 # name present in a SystemTap probe's argument to be handled in a
1033 # special way. For example, on i386, GCC may over-optimize the
1034 # register allocation and use smaller registers than necessary. In
1035 # such cases, the client that is reading and evaluating the SystemTap
1036 # probe (ourselves) will need to actually fetch values from the wider
1037 # version of the register in question.
1039 # To illustrate the example, consider the following probe argument
1044 # This argument says that its value can be found at the %ax register,
1045 # which is a 16-bit register. However, the argument's prefix says
1046 # that its type is "uint32_t", which is 32-bit in size. Therefore, in
1047 # this case, GDB should actually fetch the probe's value from register
1048 # %eax, not %ax. In this scenario, this function would actually
1049 # replace the register name from %ax to %eax.
1051 # The rationale for this can be found at PR breakpoints/24541.
1052 M
;std
::string
;stap_adjust_register
;struct stap_parse_info
*p
, const std
::string \
®name
, int regnum
;p
, regname
, regnum
1054 # DTrace related functions.
1056 # The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1057 # NARG must be >= 0.
1058 M
;void
;dtrace_parse_probe_argument
;struct expr_builder
*builder
, int narg
;builder
, narg
1060 # True if the given ADDR does not contain the instruction sequence
1061 # corresponding to a disabled DTrace is-enabled probe.
1062 M
;int
;dtrace_probe_is_enabled
;CORE_ADDR addr
;addr
1064 # Enable a DTrace is-enabled probe at ADDR.
1065 M
;void
;dtrace_enable_probe
;CORE_ADDR addr
;addr
1067 # Disable a DTrace is-enabled probe at ADDR.
1068 M
;void
;dtrace_disable_probe
;CORE_ADDR addr
;addr
1070 # True if the list of shared libraries is one and only for all
1071 # processes, as opposed to a list of shared libraries per inferior.
1072 # This usually means that all processes, although may or may not share
1073 # an address space, will see the same set of symbols at the same
1075 v
;int
;has_global_solist
;;;0;0;;0
1077 # On some targets, even though each inferior has its own private
1078 # address space, the debug interface takes care of making breakpoints
1079 # visible to all address spaces automatically. For such cases,
1080 # this property should be set to true.
1081 v
;int
;has_global_breakpoints
;;;0;0;;0
1083 # True if inferiors share an address space (e.g., uClinux).
1084 m
;int
;has_shared_address_space
;void
;;;default_has_shared_address_space
;;0
1086 # True if a fast tracepoint can be set at an address.
1087 m
;int
;fast_tracepoint_valid_at
;CORE_ADDR addr
, std
::string
*msg
;addr
, msg
;;default_fast_tracepoint_valid_at
;;0
1089 # Guess register state based on tracepoint location. Used for tracepoints
1090 # where no registers have been collected, but there's only one location,
1091 # allowing us to guess the PC value, and perhaps some other registers.
1092 # On entry, regcache has all registers marked as unavailable.
1093 m
;void
;guess_tracepoint_registers
;struct regcache
*regcache
, CORE_ADDR addr
;regcache
, addr
;;default_guess_tracepoint_registers
;;0
1095 # Return the "auto" target charset.
1096 f
;const char
*;auto_charset
;void
;;default_auto_charset
;default_auto_charset
;;0
1097 # Return the "auto" target wide charset.
1098 f
;const char
*;auto_wide_charset
;void
;;default_auto_wide_charset
;default_auto_wide_charset
;;0
1100 # If non-empty, this is a file extension that will be opened in place
1101 # of the file extension reported by the shared library list.
1103 # This is most useful for toolchains that use a post-linker tool,
1104 # where the names of the files run on the target differ in extension
1105 # compared to the names of the files GDB should load for debug info.
1106 v
;const char
*;solib_symbols_extension
;;;;;;;pstring
(gdbarch-
>solib_symbols_extension
)
1108 # If true, the target OS has DOS-based file system semantics. That
1109 # is, absolute paths include a drive name, and the backslash is
1110 # considered a directory separator.
1111 v
;int
;has_dos_based_file_system
;;;0;0;;0
1113 # Generate bytecodes to collect the return address in a frame.
1114 # Since the bytecodes run on the target, possibly with GDB not even
1115 # connected, the full unwinding machinery is not available, and
1116 # typically this function will issue bytecodes for one or more likely
1117 # places that the return address may be found.
1118 m
;void
;gen_return_address
;struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
;ax
, value
, scope
;;default_gen_return_address
;;0
1120 # Implement the "info proc" command.
1121 M
;void
;info_proc
;const char
*args
, enum info_proc_what what
;args
, what
1123 # Implement the "info proc" command for core files. Noe that there
1124 # are two "info_proc"-like methods on gdbarch -- one for core files,
1125 # one for live targets.
1126 M
;void
;core_info_proc
;const char
*args
, enum info_proc_what what
;args
, what
1128 # Iterate over all objfiles in the order that makes the most sense
1129 # for the architecture to make global symbol searches.
1131 # CB is a callback function where OBJFILE is the objfile to be searched,
1132 # and CB_DATA a pointer to user-defined data (the same data that is passed
1133 # when calling this gdbarch method). The iteration stops if this function
1136 # CB_DATA is a pointer to some user-defined data to be passed to
1139 # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1140 # inspected when the symbol search was requested.
1141 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
1143 # Ravenscar arch-dependent ops.
1144 v
;struct ravenscar_arch_ops
*;ravenscar_ops
;;;NULL
;NULL
;;0;host_address_to_string
(gdbarch-
>ravenscar_ops
)
1146 # Return non-zero if the instruction at ADDR is a call; zero otherwise.
1147 m
;int
;insn_is_call
;CORE_ADDR addr
;addr
;;default_insn_is_call
;;0
1149 # Return non-zero if the instruction at ADDR is a return; zero otherwise.
1150 m
;int
;insn_is_ret
;CORE_ADDR addr
;addr
;;default_insn_is_ret
;;0
1152 # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
1153 m
;int
;insn_is_jump
;CORE_ADDR addr
;addr
;;default_insn_is_jump
;;0
1155 # Return true if there's a program/permanent breakpoint planted in
1156 # memory at ADDRESS, return false otherwise.
1157 m
;bool
;program_breakpoint_here_p
;CORE_ADDR address
;address
;;default_program_breakpoint_here_p
;;0
1159 # Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1160 # Return 0 if *READPTR is already at the end of the buffer.
1161 # Return -1 if there is insufficient buffer for a whole entry.
1162 # Return 1 if an entry was read into *TYPEP and *VALP.
1163 M
;int
;auxv_parse
;gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
;readptr
, endptr
, typep
, valp
1165 # Print the description of a single auxv entry described by TYPE and VAL
1167 m
;void
;print_auxv_entry
;struct ui_file
*file, CORE_ADDR
type, CORE_ADDR val
;file, type, val
;;default_print_auxv_entry
;;0
1169 # Find the address range of the current inferior's vsyscall/vDSO, and
1170 # write it to *RANGE. If the vsyscall's length can't be determined, a
1171 # range with zero length is returned. Returns true if the vsyscall is
1172 # found, false otherwise.
1173 m
;int
;vsyscall_range
;struct mem_range
*range
;range
;;default_vsyscall_range
;;0
1175 # Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1176 # PROT has GDB_MMAP_PROT_* bitmask format.
1177 # Throw an error if it is not possible. Returned address is always valid.
1178 f
;CORE_ADDR
;infcall_mmap
;CORE_ADDR size
, unsigned prot
;size
, prot
;;default_infcall_mmap
;;0
1180 # Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1181 # Print a warning if it is not possible.
1182 f
;void
;infcall_munmap
;CORE_ADDR addr
, CORE_ADDR size
;addr
, size
;;default_infcall_munmap
;;0
1184 # Return string (caller has to use xfree for it) with options for GCC
1185 # to produce code for this target, typically "-m64", "-m32" or "-m31".
1186 # These options are put before CU's DW_AT_producer compilation options so that
1187 # they can override it.
1188 m
;std
::string
;gcc_target_options
;void
;;;default_gcc_target_options
;;0
1190 # Return a regular expression that matches names used by this
1191 # architecture in GNU configury triplets. The result is statically
1192 # allocated and must not be freed. The default implementation simply
1193 # returns the BFD architecture name, which is correct in nearly every
1195 m
;const char
*;gnu_triplet_regexp
;void
;;;default_gnu_triplet_regexp
;;0
1197 # Return the size in 8-bit bytes of an addressable memory unit on this
1198 # architecture. This corresponds to the number of 8-bit bytes associated to
1199 # each address in memory.
1200 m
;int
;addressable_memory_unit_size
;void
;;;default_addressable_memory_unit_size
;;0
1202 # Functions for allowing a target to modify its disassembler options.
1203 v
;const char
*;disassembler_options_implicit
;;;0;0;;0;pstring
(gdbarch-
>disassembler_options_implicit
)
1204 v
;char
**;disassembler_options
;;;0;0;;0;pstring_ptr
(gdbarch-
>disassembler_options
)
1205 v
;const disasm_options_and_args_t
*;valid_disassembler_options
;;;0;0;;0;host_address_to_string
(gdbarch-
>valid_disassembler_options
)
1207 # Type alignment override method. Return the architecture specific
1208 # alignment required for TYPE. If there is no special handling
1209 # required for TYPE then return the value 0, GDB will then apply the
1210 # default rules as laid out in gdbtypes.c:type_align.
1211 m
;ULONGEST
;type_align
;struct
type *type;type;;default_type_align
;;0
1213 # Return a string containing any flags for the given PC in the given FRAME.
1214 f
;std
::string
;get_pc_address_flags
;frame_info
*frame
, CORE_ADDR pc
;frame
, pc
;;default_get_pc_address_flags
;;0
1222 exec > new-gdbarch.log
1223 function_list |
while do_read
1226 ${class} ${returntype} ${function} ($formal)
1230 eval echo \"\ \ \ \
${r}=\
${${r}}\"
1232 if class_is_predicate_p
&& fallback_default_p
1234 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
1238 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
1240 echo "Error: postdefault is useless when invalid_p=0" 1>&2
1244 if class_is_multiarch_p
1246 if class_is_predicate_p
; then :
1247 elif test "x${predefault}" = "x"
1249 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
1258 compare_new gdbarch.log
1264 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
1267 /* Dynamic architecture support for GDB, the GNU debugger.
1269 Copyright (C) 1998-2020 Free Software Foundation, Inc.
1271 This file is part of GDB.
1273 This program is free software; you can redistribute it and/or modify
1274 it under the terms of the GNU General Public License as published by
1275 the Free Software Foundation; either version 3 of the License, or
1276 (at your option) any later version.
1278 This program is distributed in the hope that it will be useful,
1279 but WITHOUT ANY WARRANTY; without even the implied warranty of
1280 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1281 GNU General Public License for more details.
1283 You should have received a copy of the GNU General Public License
1284 along with this program. If not, see <http://www.gnu.org/licenses/>. */
1286 /* This file was created with the aid of \`\`gdbarch.sh''.
1288 The Bourne shell script \`\`gdbarch.sh'' creates the files
1289 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
1290 against the existing \`\`gdbarch.[hc]''. Any differences found
1293 If editing this file, please also run gdbarch.sh and merge any
1294 changes into that script. Conversely, when making sweeping changes
1295 to this file, modifying gdbarch.sh and using its output may prove
1305 exec > new-gdbarch.h
1313 #include "dis-asm.h"
1314 #include "gdb_obstack.h"
1323 struct minimal_symbol;
1327 struct disassemble_info;
1330 struct bp_target_info;
1336 struct stap_parse_info;
1337 struct expr_builder;
1338 struct ravenscar_arch_ops;
1340 struct syscalls_info;
1344 #include "regcache.h"
1346 /* The architecture associated with the inferior through the
1347 connection to the target.
1349 The architecture vector provides some information that is really a
1350 property of the inferior, accessed through a particular target:
1351 ptrace operations; the layout of certain RSP packets; the solib_ops
1352 vector; etc. To differentiate architecture accesses to
1353 per-inferior/target properties from
1354 per-thread/per-frame/per-objfile properties, accesses to
1355 per-inferior/target properties should be made through this
1358 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
1359 extern struct gdbarch *target_gdbarch (void);
1361 /* Callback type for the 'iterate_over_objfiles_in_search_order'
1364 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
1365 (struct objfile *objfile, void *cb_data);
1367 /* Callback type for regset section iterators. The callback usually
1368 invokes the REGSET's supply or collect method, to which it must
1369 pass a buffer - for collects this buffer will need to be created using
1370 COLLECT_SIZE, for supply the existing buffer being read from should
1371 be at least SUPPLY_SIZE. SECT_NAME is a BFD section name, and HUMAN_NAME
1372 is used for diagnostic messages. CB_DATA should have been passed
1373 unchanged through the iterator. */
1375 typedef void (iterate_over_regset_sections_cb)
1376 (const char *sect_name, int supply_size, int collect_size,
1377 const struct regset *regset, const char *human_name, void *cb_data);
1379 /* For a function call, does the function return a value using a
1380 normal value return or a structure return - passing a hidden
1381 argument pointing to storage. For the latter, there are two
1382 cases: language-mandated structure return and target ABI
1383 structure return. */
1385 enum function_call_return_method
1387 /* Standard value return. */
1388 return_method_normal = 0,
1390 /* Language ABI structure return. This is handled
1391 by passing the return location as the first parameter to
1392 the function, even preceding "this". */
1393 return_method_hidden_param,
1395 /* Target ABI struct return. This is target-specific; for instance,
1396 on ia64 the first argument is passed in out0 but the hidden
1397 structure return pointer would normally be passed in r8. */
1398 return_method_struct,
1403 # function typedef's
1406 printf "/* The following are pre-initialized by GDBARCH. */\n"
1407 function_list |
while do_read
1412 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1413 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
1417 # function typedef's
1420 printf "/* The following are initialized by the target dependent code. */\n"
1421 function_list |
while do_read
1423 if [ -n "${comment}" ]
1425 echo "${comment}" |
sed \
1431 if class_is_predicate_p
1434 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1436 if class_is_variable_p
1439 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1440 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1442 if class_is_function_p
1445 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1447 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1448 elif class_is_multiarch_p
1450 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1452 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1454 if [ "x${formal}" = "xvoid" ]
1456 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1458 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1460 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1467 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1470 /* Mechanism for co-ordinating the selection of a specific
1473 GDB targets (*-tdep.c) can register an interest in a specific
1474 architecture. Other GDB components can register a need to maintain
1475 per-architecture data.
1477 The mechanisms below ensures that there is only a loose connection
1478 between the set-architecture command and the various GDB
1479 components. Each component can independently register their need
1480 to maintain architecture specific data with gdbarch.
1484 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1487 The more traditional mega-struct containing architecture specific
1488 data for all the various GDB components was also considered. Since
1489 GDB is built from a variable number of (fairly independent)
1490 components it was determined that the global aproach was not
1494 /* Register a new architectural family with GDB.
1496 Register support for the specified ARCHITECTURE with GDB. When
1497 gdbarch determines that the specified architecture has been
1498 selected, the corresponding INIT function is called.
1502 The INIT function takes two parameters: INFO which contains the
1503 information available to gdbarch about the (possibly new)
1504 architecture; ARCHES which is a list of the previously created
1505 \`\`struct gdbarch'' for this architecture.
1507 The INFO parameter is, as far as possible, be pre-initialized with
1508 information obtained from INFO.ABFD or the global defaults.
1510 The ARCHES parameter is a linked list (sorted most recently used)
1511 of all the previously created architures for this architecture
1512 family. The (possibly NULL) ARCHES->gdbarch can used to access
1513 values from the previously selected architecture for this
1514 architecture family.
1516 The INIT function shall return any of: NULL - indicating that it
1517 doesn't recognize the selected architecture; an existing \`\`struct
1518 gdbarch'' from the ARCHES list - indicating that the new
1519 architecture is just a synonym for an earlier architecture (see
1520 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1521 - that describes the selected architecture (see gdbarch_alloc()).
1523 The DUMP_TDEP function shall print out all target specific values.
1524 Care should be taken to ensure that the function works in both the
1525 multi-arch and non- multi-arch cases. */
1529 struct gdbarch *gdbarch;
1530 struct gdbarch_list *next;
1535 /* Use default: NULL (ZERO). */
1536 const struct bfd_arch_info *bfd_arch_info;
1538 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1539 enum bfd_endian byte_order;
1541 enum bfd_endian byte_order_for_code;
1543 /* Use default: NULL (ZERO). */
1546 /* Use default: NULL (ZERO). */
1549 /* Architecture-specific information. The generic form for targets
1550 that have extra requirements. */
1551 struct gdbarch_tdep_info *tdep_info;
1553 /* Architecture-specific target description data. Numerous targets
1554 need only this, so give them an easy way to hold it. */
1555 struct tdesc_arch_data *tdesc_data;
1557 /* SPU file system ID. This is a single integer, so using the
1558 generic form would only complicate code. Other targets may
1559 reuse this member if suitable. */
1563 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1564 enum gdb_osabi osabi;
1566 /* Use default: NULL (ZERO). */
1567 const struct target_desc *target_desc;
1570 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1571 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1573 /* DEPRECATED - use gdbarch_register() */
1574 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1576 extern void gdbarch_register (enum bfd_architecture architecture,
1577 gdbarch_init_ftype *,
1578 gdbarch_dump_tdep_ftype *);
1581 /* Return a freshly allocated, NULL terminated, array of the valid
1582 architecture names. Since architectures are registered during the
1583 _initialize phase this function only returns useful information
1584 once initialization has been completed. */
1586 extern const char **gdbarch_printable_names (void);
1589 /* Helper function. Search the list of ARCHES for a GDBARCH that
1590 matches the information provided by INFO. */
1592 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1595 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1596 basic initialization using values obtained from the INFO and TDEP
1597 parameters. set_gdbarch_*() functions are called to complete the
1598 initialization of the object. */
1600 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1603 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1604 It is assumed that the caller freeds the \`\`struct
1607 extern void gdbarch_free (struct gdbarch *);
1609 /* Get the obstack owned by ARCH. */
1611 extern obstack *gdbarch_obstack (gdbarch *arch);
1613 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1614 obstack. The memory is freed when the corresponding architecture
1617 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) \
1618 obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1620 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) \
1621 obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1623 /* Duplicate STRING, returning an equivalent string that's allocated on the
1624 obstack associated with GDBARCH. The string is freed when the corresponding
1625 architecture is also freed. */
1627 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1629 /* Helper function. Force an update of the current architecture.
1631 The actual architecture selected is determined by INFO, \`\`(gdb) set
1632 architecture'' et.al., the existing architecture and BFD's default
1633 architecture. INFO should be initialized to zero and then selected
1634 fields should be updated.
1636 Returns non-zero if the update succeeds. */
1638 extern int gdbarch_update_p (struct gdbarch_info info);
1641 /* Helper function. Find an architecture matching info.
1643 INFO should be initialized using gdbarch_info_init, relevant fields
1644 set, and then finished using gdbarch_info_fill.
1646 Returns the corresponding architecture, or NULL if no matching
1647 architecture was found. */
1649 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1652 /* Helper function. Set the target gdbarch to "gdbarch". */
1654 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1657 /* Register per-architecture data-pointer.
1659 Reserve space for a per-architecture data-pointer. An identifier
1660 for the reserved data-pointer is returned. That identifer should
1661 be saved in a local static variable.
1663 Memory for the per-architecture data shall be allocated using
1664 gdbarch_obstack_zalloc. That memory will be deleted when the
1665 corresponding architecture object is deleted.
1667 When a previously created architecture is re-selected, the
1668 per-architecture data-pointer for that previous architecture is
1669 restored. INIT() is not re-called.
1671 Multiple registrarants for any architecture are allowed (and
1672 strongly encouraged). */
1674 struct gdbarch_data;
1676 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1677 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1678 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1679 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1680 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1681 struct gdbarch_data *data,
1684 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1687 /* Set the dynamic target-system-dependent parameters (architecture,
1688 byte-order, ...) using information found in the BFD. */
1690 extern void set_gdbarch_from_file (bfd *);
1693 /* Initialize the current architecture to the "first" one we find on
1696 extern void initialize_current_architecture (void);
1698 /* gdbarch trace variable */
1699 extern unsigned int gdbarch_debug;
1701 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1703 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1706 gdbarch_num_cooked_regs (gdbarch *arch)
1708 return gdbarch_num_regs (arch) + gdbarch_num_pseudo_regs (arch);
1714 #../move-if-change new-gdbarch.h gdbarch.h
1715 compare_new gdbarch.h
1722 exec > new-gdbarch.c
1727 #include "arch-utils.h"
1730 #include "inferior.h"
1733 #include "floatformat.h"
1734 #include "reggroups.h"
1736 #include "gdb_obstack.h"
1737 #include "observable.h"
1738 #include "regcache.h"
1739 #include "objfiles.h"
1741 #include "frame-unwind.h"
1742 #include "dummy-frame.h"
1744 /* Static function declarations */
1746 static void alloc_gdbarch_data (struct gdbarch *);
1748 /* Non-zero if we want to trace architecture code. */
1750 #ifndef GDBARCH_DEBUG
1751 #define GDBARCH_DEBUG 0
1753 unsigned int gdbarch_debug = GDBARCH_DEBUG;
1755 show_gdbarch_debug (struct ui_file *file, int from_tty,
1756 struct cmd_list_element *c, const char *value)
1758 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1762 pformat (const struct floatformat **format)
1767 /* Just print out one of them - this is only for diagnostics. */
1768 return format[0]->name;
1772 pstring (const char *string)
1780 pstring_ptr (char **string)
1782 if (string == NULL || *string == NULL)
1787 /* Helper function to print a list of strings, represented as "const
1788 char *const *". The list is printed comma-separated. */
1791 pstring_list (const char *const *list)
1793 static char ret[100];
1794 const char *const *p;
1801 for (p = list; *p != NULL && offset < sizeof (ret); ++p)
1803 size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
1809 gdb_assert (offset - 2 < sizeof (ret));
1810 ret[offset - 2] = '\0';
1818 # gdbarch open the gdbarch object
1820 printf "/* Maintain the struct gdbarch object. */\n"
1822 printf "struct gdbarch\n"
1824 printf " /* Has this architecture been fully initialized? */\n"
1825 printf " int initialized_p;\n"
1827 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1828 printf " struct obstack *obstack;\n"
1830 printf " /* basic architectural information. */\n"
1831 function_list |
while do_read
1835 printf " ${returntype} ${function};\n"
1839 printf " /* target specific vector. */\n"
1840 printf " struct gdbarch_tdep *tdep;\n"
1841 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1843 printf " /* per-architecture data-pointers. */\n"
1844 printf " unsigned nr_data;\n"
1845 printf " void **data;\n"
1848 /* Multi-arch values.
1850 When extending this structure you must:
1852 Add the field below.
1854 Declare set/get functions and define the corresponding
1857 gdbarch_alloc(): If zero/NULL is not a suitable default,
1858 initialize the new field.
1860 verify_gdbarch(): Confirm that the target updated the field
1863 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1866 get_gdbarch(): Implement the set/get functions (probably using
1867 the macro's as shortcuts).
1872 function_list |
while do_read
1874 if class_is_variable_p
1876 printf " ${returntype} ${function};\n"
1877 elif class_is_function_p
1879 printf " gdbarch_${function}_ftype *${function};\n"
1884 # Create a new gdbarch struct
1887 /* Create a new \`\`struct gdbarch'' based on information provided by
1888 \`\`struct gdbarch_info''. */
1893 gdbarch_alloc (const struct gdbarch_info *info,
1894 struct gdbarch_tdep *tdep)
1896 struct gdbarch *gdbarch;
1898 /* Create an obstack for allocating all the per-architecture memory,
1899 then use that to allocate the architecture vector. */
1900 struct obstack *obstack = XNEW (struct obstack);
1901 obstack_init (obstack);
1902 gdbarch = XOBNEW (obstack, struct gdbarch);
1903 memset (gdbarch, 0, sizeof (*gdbarch));
1904 gdbarch->obstack = obstack;
1906 alloc_gdbarch_data (gdbarch);
1908 gdbarch->tdep = tdep;
1911 function_list |
while do_read
1915 printf " gdbarch->${function} = info->${function};\n"
1919 printf " /* Force the explicit initialization of these. */\n"
1920 function_list |
while do_read
1922 if class_is_function_p || class_is_variable_p
1924 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1926 printf " gdbarch->${function} = ${predefault};\n"
1931 /* gdbarch_alloc() */
1937 # Free a gdbarch struct.
1942 obstack *gdbarch_obstack (gdbarch *arch)
1944 return arch->obstack;
1947 /* See gdbarch.h. */
1950 gdbarch_obstack_strdup (struct gdbarch *arch, const char *string)
1952 return obstack_strdup (arch->obstack, string);
1956 /* Free a gdbarch struct. This should never happen in normal
1957 operation --- once you've created a gdbarch, you keep it around.
1958 However, if an architecture's init function encounters an error
1959 building the structure, it may need to clean up a partially
1960 constructed gdbarch. */
1963 gdbarch_free (struct gdbarch *arch)
1965 struct obstack *obstack;
1967 gdb_assert (arch != NULL);
1968 gdb_assert (!arch->initialized_p);
1969 obstack = arch->obstack;
1970 obstack_free (obstack, 0); /* Includes the ARCH. */
1975 # verify a new architecture
1979 /* Ensure that all values in a GDBARCH are reasonable. */
1982 verify_gdbarch (struct gdbarch *gdbarch)
1987 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1988 log.puts ("\n\tbyte-order");
1989 if (gdbarch->bfd_arch_info == NULL)
1990 log.puts ("\n\tbfd_arch_info");
1991 /* Check those that need to be defined for the given multi-arch level. */
1993 function_list |
while do_read
1995 if class_is_function_p || class_is_variable_p
1997 if [ "x${invalid_p}" = "x0" ]
1999 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
2000 elif class_is_predicate_p
2002 printf " /* Skip verify of ${function}, has predicate. */\n"
2003 # FIXME: See do_read for potential simplification
2004 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
2006 printf " if (${invalid_p})\n"
2007 printf " gdbarch->${function} = ${postdefault};\n"
2008 elif [ -n "${predefault}" -a -n "${postdefault}" ]
2010 printf " if (gdbarch->${function} == ${predefault})\n"
2011 printf " gdbarch->${function} = ${postdefault};\n"
2012 elif [ -n "${postdefault}" ]
2014 printf " if (gdbarch->${function} == 0)\n"
2015 printf " gdbarch->${function} = ${postdefault};\n"
2016 elif [ -n "${invalid_p}" ]
2018 printf " if (${invalid_p})\n"
2019 printf " log.puts (\"\\\\n\\\\t${function}\");\n"
2020 elif [ -n "${predefault}" ]
2022 printf " if (gdbarch->${function} == ${predefault})\n"
2023 printf " log.puts (\"\\\\n\\\\t${function}\");\n"
2029 internal_error (__FILE__, __LINE__,
2030 _("verify_gdbarch: the following are invalid ...%s"),
2035 # dump the structure
2039 /* Print out the details of the current architecture. */
2042 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
2044 const char *gdb_nm_file = "<not-defined>";
2046 #if defined (GDB_NM_FILE)
2047 gdb_nm_file = GDB_NM_FILE;
2049 fprintf_unfiltered (file,
2050 "gdbarch_dump: GDB_NM_FILE = %s\\n",
2053 function_list |
sort '-t;' -k 3 |
while do_read
2055 # First the predicate
2056 if class_is_predicate_p
2058 printf " fprintf_unfiltered (file,\n"
2059 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
2060 printf " gdbarch_${function}_p (gdbarch));\n"
2062 # Print the corresponding value.
2063 if class_is_function_p
2065 printf " fprintf_unfiltered (file,\n"
2066 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
2067 printf " host_address_to_string (gdbarch->${function}));\n"
2070 case "${print}:${returntype}" in
2073 print
="core_addr_to_string_nz (gdbarch->${function})"
2077 print
="plongest (gdbarch->${function})"
2083 printf " fprintf_unfiltered (file,\n"
2084 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
2085 printf " ${print});\n"
2089 if (gdbarch->dump_tdep != NULL)
2090 gdbarch->dump_tdep (gdbarch, file);
2098 struct gdbarch_tdep *
2099 gdbarch_tdep (struct gdbarch *gdbarch)
2101 if (gdbarch_debug >= 2)
2102 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
2103 return gdbarch->tdep;
2107 function_list |
while do_read
2109 if class_is_predicate_p
2113 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
2115 printf " gdb_assert (gdbarch != NULL);\n"
2116 printf " return ${predicate};\n"
2119 if class_is_function_p
2122 printf "${returntype}\n"
2123 if [ "x${formal}" = "xvoid" ]
2125 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2127 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
2130 printf " gdb_assert (gdbarch != NULL);\n"
2131 printf " gdb_assert (gdbarch->${function} != NULL);\n"
2132 if class_is_predicate_p
&& test -n "${predefault}"
2134 # Allow a call to a function with a predicate.
2135 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
2137 printf " if (gdbarch_debug >= 2)\n"
2138 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2139 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
2141 if class_is_multiarch_p
2148 if class_is_multiarch_p
2150 params
="gdbarch, ${actual}"
2155 if [ "x${returntype}" = "xvoid" ]
2157 printf " gdbarch->${function} (${params});\n"
2159 printf " return gdbarch->${function} (${params});\n"
2164 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2165 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
2167 printf " gdbarch->${function} = ${function};\n"
2169 elif class_is_variable_p
2172 printf "${returntype}\n"
2173 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2175 printf " gdb_assert (gdbarch != NULL);\n"
2176 if [ "x${invalid_p}" = "x0" ]
2178 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
2179 elif [ -n "${invalid_p}" ]
2181 printf " /* Check variable is valid. */\n"
2182 printf " gdb_assert (!(${invalid_p}));\n"
2183 elif [ -n "${predefault}" ]
2185 printf " /* Check variable changed from pre-default. */\n"
2186 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
2188 printf " if (gdbarch_debug >= 2)\n"
2189 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2190 printf " return gdbarch->${function};\n"
2194 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2195 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
2197 printf " gdbarch->${function} = ${function};\n"
2199 elif class_is_info_p
2202 printf "${returntype}\n"
2203 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2205 printf " gdb_assert (gdbarch != NULL);\n"
2206 printf " if (gdbarch_debug >= 2)\n"
2207 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2208 printf " return gdbarch->${function};\n"
2213 # All the trailing guff
2217 /* Keep a registry of per-architecture data-pointers required by GDB
2224 gdbarch_data_pre_init_ftype *pre_init;
2225 gdbarch_data_post_init_ftype *post_init;
2228 struct gdbarch_data_registration
2230 struct gdbarch_data *data;
2231 struct gdbarch_data_registration *next;
2234 struct gdbarch_data_registry
2237 struct gdbarch_data_registration *registrations;
2240 struct gdbarch_data_registry gdbarch_data_registry =
2245 static struct gdbarch_data *
2246 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
2247 gdbarch_data_post_init_ftype *post_init)
2249 struct gdbarch_data_registration **curr;
2251 /* Append the new registration. */
2252 for (curr = &gdbarch_data_registry.registrations;
2254 curr = &(*curr)->next);
2255 (*curr) = XNEW (struct gdbarch_data_registration);
2256 (*curr)->next = NULL;
2257 (*curr)->data = XNEW (struct gdbarch_data);
2258 (*curr)->data->index = gdbarch_data_registry.nr++;
2259 (*curr)->data->pre_init = pre_init;
2260 (*curr)->data->post_init = post_init;
2261 (*curr)->data->init_p = 1;
2262 return (*curr)->data;
2265 struct gdbarch_data *
2266 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
2268 return gdbarch_data_register (pre_init, NULL);
2271 struct gdbarch_data *
2272 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
2274 return gdbarch_data_register (NULL, post_init);
2277 /* Create/delete the gdbarch data vector. */
2280 alloc_gdbarch_data (struct gdbarch *gdbarch)
2282 gdb_assert (gdbarch->data == NULL);
2283 gdbarch->nr_data = gdbarch_data_registry.nr;
2284 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
2287 /* Initialize the current value of the specified per-architecture
2291 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
2292 struct gdbarch_data *data,
2295 gdb_assert (data->index < gdbarch->nr_data);
2296 gdb_assert (gdbarch->data[data->index] == NULL);
2297 gdb_assert (data->pre_init == NULL);
2298 gdbarch->data[data->index] = pointer;
2301 /* Return the current value of the specified per-architecture
2305 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
2307 gdb_assert (data->index < gdbarch->nr_data);
2308 if (gdbarch->data[data->index] == NULL)
2310 /* The data-pointer isn't initialized, call init() to get a
2312 if (data->pre_init != NULL)
2313 /* Mid architecture creation: pass just the obstack, and not
2314 the entire architecture, as that way it isn't possible for
2315 pre-init code to refer to undefined architecture
2317 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
2318 else if (gdbarch->initialized_p
2319 && data->post_init != NULL)
2320 /* Post architecture creation: pass the entire architecture
2321 (as all fields are valid), but be careful to also detect
2322 recursive references. */
2324 gdb_assert (data->init_p);
2326 gdbarch->data[data->index] = data->post_init (gdbarch);
2330 /* The architecture initialization hasn't completed - punt -
2331 hope that the caller knows what they are doing. Once
2332 deprecated_set_gdbarch_data has been initialized, this can be
2333 changed to an internal error. */
2335 gdb_assert (gdbarch->data[data->index] != NULL);
2337 return gdbarch->data[data->index];
2341 /* Keep a registry of the architectures known by GDB. */
2343 struct gdbarch_registration
2345 enum bfd_architecture bfd_architecture;
2346 gdbarch_init_ftype *init;
2347 gdbarch_dump_tdep_ftype *dump_tdep;
2348 struct gdbarch_list *arches;
2349 struct gdbarch_registration *next;
2352 static struct gdbarch_registration *gdbarch_registry = NULL;
2355 append_name (const char ***buf, int *nr, const char *name)
2357 *buf = XRESIZEVEC (const char *, *buf, *nr + 1);
2363 gdbarch_printable_names (void)
2365 /* Accumulate a list of names based on the registed list of
2368 const char **arches = NULL;
2369 struct gdbarch_registration *rego;
2371 for (rego = gdbarch_registry;
2375 const struct bfd_arch_info *ap;
2376 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2378 internal_error (__FILE__, __LINE__,
2379 _("gdbarch_architecture_names: multi-arch unknown"));
2382 append_name (&arches, &nr_arches, ap->printable_name);
2387 append_name (&arches, &nr_arches, NULL);
2393 gdbarch_register (enum bfd_architecture bfd_architecture,
2394 gdbarch_init_ftype *init,
2395 gdbarch_dump_tdep_ftype *dump_tdep)
2397 struct gdbarch_registration **curr;
2398 const struct bfd_arch_info *bfd_arch_info;
2400 /* Check that BFD recognizes this architecture */
2401 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2402 if (bfd_arch_info == NULL)
2404 internal_error (__FILE__, __LINE__,
2405 _("gdbarch: Attempt to register "
2406 "unknown architecture (%d)"),
2409 /* Check that we haven't seen this architecture before. */
2410 for (curr = &gdbarch_registry;
2412 curr = &(*curr)->next)
2414 if (bfd_architecture == (*curr)->bfd_architecture)
2415 internal_error (__FILE__, __LINE__,
2416 _("gdbarch: Duplicate registration "
2417 "of architecture (%s)"),
2418 bfd_arch_info->printable_name);
2422 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
2423 bfd_arch_info->printable_name,
2424 host_address_to_string (init));
2426 (*curr) = XNEW (struct gdbarch_registration);
2427 (*curr)->bfd_architecture = bfd_architecture;
2428 (*curr)->init = init;
2429 (*curr)->dump_tdep = dump_tdep;
2430 (*curr)->arches = NULL;
2431 (*curr)->next = NULL;
2435 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2436 gdbarch_init_ftype *init)
2438 gdbarch_register (bfd_architecture, init, NULL);
2442 /* Look for an architecture using gdbarch_info. */
2444 struct gdbarch_list *
2445 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2446 const struct gdbarch_info *info)
2448 for (; arches != NULL; arches = arches->next)
2450 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2452 if (info->byte_order != arches->gdbarch->byte_order)
2454 if (info->osabi != arches->gdbarch->osabi)
2456 if (info->target_desc != arches->gdbarch->target_desc)
2464 /* Find an architecture that matches the specified INFO. Create a new
2465 architecture if needed. Return that new architecture. */
2468 gdbarch_find_by_info (struct gdbarch_info info)
2470 struct gdbarch *new_gdbarch;
2471 struct gdbarch_registration *rego;
2473 /* Fill in missing parts of the INFO struct using a number of
2474 sources: "set ..."; INFOabfd supplied; and the global
2476 gdbarch_info_fill (&info);
2478 /* Must have found some sort of architecture. */
2479 gdb_assert (info.bfd_arch_info != NULL);
2483 fprintf_unfiltered (gdb_stdlog,
2484 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2485 (info.bfd_arch_info != NULL
2486 ? info.bfd_arch_info->printable_name
2488 fprintf_unfiltered (gdb_stdlog,
2489 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2491 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2492 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2494 fprintf_unfiltered (gdb_stdlog,
2495 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2496 info.osabi, gdbarch_osabi_name (info.osabi));
2497 fprintf_unfiltered (gdb_stdlog,
2498 "gdbarch_find_by_info: info.abfd %s\n",
2499 host_address_to_string (info.abfd));
2500 fprintf_unfiltered (gdb_stdlog,
2501 "gdbarch_find_by_info: info.tdep_info %s\n",
2502 host_address_to_string (info.tdep_info));
2505 /* Find the tdep code that knows about this architecture. */
2506 for (rego = gdbarch_registry;
2509 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2514 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2515 "No matching architecture\n");
2519 /* Ask the tdep code for an architecture that matches "info". */
2520 new_gdbarch = rego->init (info, rego->arches);
2522 /* Did the tdep code like it? No. Reject the change and revert to
2523 the old architecture. */
2524 if (new_gdbarch == NULL)
2527 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2528 "Target rejected architecture\n");
2532 /* Is this a pre-existing architecture (as determined by already
2533 being initialized)? Move it to the front of the architecture
2534 list (keeping the list sorted Most Recently Used). */
2535 if (new_gdbarch->initialized_p)
2537 struct gdbarch_list **list;
2538 struct gdbarch_list *self;
2540 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2541 "Previous architecture %s (%s) selected\n",
2542 host_address_to_string (new_gdbarch),
2543 new_gdbarch->bfd_arch_info->printable_name);
2544 /* Find the existing arch in the list. */
2545 for (list = ®o->arches;
2546 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2547 list = &(*list)->next);
2548 /* It had better be in the list of architectures. */
2549 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2552 (*list) = self->next;
2553 /* Insert SELF at the front. */
2554 self->next = rego->arches;
2555 rego->arches = self;
2560 /* It's a new architecture. */
2562 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2563 "New architecture %s (%s) selected\n",
2564 host_address_to_string (new_gdbarch),
2565 new_gdbarch->bfd_arch_info->printable_name);
2567 /* Insert the new architecture into the front of the architecture
2568 list (keep the list sorted Most Recently Used). */
2570 struct gdbarch_list *self = XNEW (struct gdbarch_list);
2571 self->next = rego->arches;
2572 self->gdbarch = new_gdbarch;
2573 rego->arches = self;
2576 /* Check that the newly installed architecture is valid. Plug in
2577 any post init values. */
2578 new_gdbarch->dump_tdep = rego->dump_tdep;
2579 verify_gdbarch (new_gdbarch);
2580 new_gdbarch->initialized_p = 1;
2583 gdbarch_dump (new_gdbarch, gdb_stdlog);
2588 /* Make the specified architecture current. */
2591 set_target_gdbarch (struct gdbarch *new_gdbarch)
2593 gdb_assert (new_gdbarch != NULL);
2594 gdb_assert (new_gdbarch->initialized_p);
2595 current_inferior ()->gdbarch = new_gdbarch;
2596 gdb::observers::architecture_changed.notify (new_gdbarch);
2597 registers_changed ();
2600 /* Return the current inferior's arch. */
2603 target_gdbarch (void)
2605 return current_inferior ()->gdbarch;
2608 void _initialize_gdbarch ();
2610 _initialize_gdbarch ()
2612 add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2613 Set architecture debugging."), _("\\
2614 Show architecture debugging."), _("\\
2615 When non-zero, architecture debugging is enabled."),
2618 &setdebuglist, &showdebuglist);
2624 #../move-if-change new-gdbarch.c gdbarch.c
2625 compare_new gdbarch.c