3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998-2018 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 # 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 short or unsigned short for the target machine.
355 v;int;short_bit;;;8 * sizeof (short);2*TARGET_CHAR_BIT;;0
356 # Number of bits in an int or unsigned int for the target machine.
357 v;int;int_bit;;;8 * sizeof (int);4*TARGET_CHAR_BIT;;0
358 # Number of bits in a long or unsigned long for the target machine.
359 v;int;long_bit;;;8 * sizeof (long);4*TARGET_CHAR_BIT;;0
360 # Number of bits in a long long or unsigned long long for the target
362 v;int;long_long_bit;;;8 * sizeof (LONGEST);2*gdbarch->long_bit;;0
363 # Alignment of a long long or unsigned long long for the target
365 v;int;long_long_align_bit;;;8 * sizeof (LONGEST);2*gdbarch->long_bit;;0
367 # The ABI default bit-size and format for "half", "float", "double", and
368 # "long double". These bit/format pairs should eventually be combined
369 # into a single object. For the moment, just initialize them as a pair.
370 # Each format describes both the big and little endian layouts (if
373 v;int;half_bit;;;16;2*TARGET_CHAR_BIT;;0
374 v;const struct floatformat **;half_format;;;;;floatformats_ieee_half;;pformat (gdbarch->half_format)
375 v;int;float_bit;;;8 * sizeof (float);4*TARGET_CHAR_BIT;;0
376 v;const struct floatformat **;float_format;;;;;floatformats_ieee_single;;pformat (gdbarch->float_format)
377 v;int;double_bit;;;8 * sizeof (double);8*TARGET_CHAR_BIT;;0
378 v;const struct floatformat **;double_format;;;;;floatformats_ieee_double;;pformat (gdbarch->double_format)
379 v;int;long_double_bit;;;8 * sizeof (long double);8*TARGET_CHAR_BIT;;0
380 v;const struct floatformat **;long_double_format;;;;;floatformats_ieee_double;;pformat (gdbarch->long_double_format)
382 # The ABI default bit-size for "wchar_t". wchar_t is a built-in type
383 # starting with C++11.
384 v;int;wchar_bit;;;8 * sizeof (wchar_t);4*TARGET_CHAR_BIT;;0
385 # One if \`wchar_t' is signed, zero if unsigned.
386 v;int;wchar_signed;;;1;-1;1
388 # Returns the floating-point format to be used for values of length LENGTH.
389 # NAME, if non-NULL, is the type name, which may be used to distinguish
390 # different target formats of the same length.
391 m;const struct floatformat **;floatformat_for_type;const char *name, int length;name, length;0;default_floatformat_for_type;;0
393 # For most targets, a pointer on the target and its representation as an
394 # address in GDB have the same size and "look the same". For such a
395 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
396 # / addr_bit will be set from it.
398 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
399 # also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
400 # gdbarch_address_to_pointer as well.
402 # ptr_bit is the size of a pointer on the target
403 v;int;ptr_bit;;;8 * sizeof (void*);gdbarch->int_bit;;0
404 # addr_bit is the size of a target address as represented in gdb
405 v;int;addr_bit;;;8 * sizeof (void*);0;gdbarch_ptr_bit (gdbarch);
407 # dwarf2_addr_size is the target address size as used in the Dwarf debug
408 # info. For .debug_frame FDEs, this is supposed to be the target address
409 # size from the associated CU header, and which is equivalent to the
410 # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
411 # Unfortunately there is no good way to determine this value. Therefore
412 # dwarf2_addr_size simply defaults to the target pointer size.
414 # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
415 # defined using the target's pointer size so far.
417 # Note that dwarf2_addr_size only needs to be redefined by a target if the
418 # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
419 # and if Dwarf versions < 4 need to be supported.
420 v;int;dwarf2_addr_size;;;sizeof (void*);0;gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
422 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
423 v;int;char_signed;;;1;-1;1
425 F;CORE_ADDR;read_pc;readable_regcache *regcache;regcache
426 F;void;write_pc;struct regcache *regcache, CORE_ADDR val;regcache, val
427 # Function for getting target's idea of a frame pointer. FIXME: GDB's
428 # whole scheme for dealing with "frames" and "frame pointers" needs a
430 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
432 M;enum register_status;pseudo_register_read;readable_regcache *regcache, int cookednum, gdb_byte *buf;regcache, cookednum, buf
433 # Read a register into a new struct value. If the register is wholly
434 # or partly unavailable, this should call mark_value_bytes_unavailable
435 # as appropriate. If this is defined, then pseudo_register_read will
437 M;struct value *;pseudo_register_read_value;readable_regcache *regcache, int cookednum;regcache, cookednum
438 M;void;pseudo_register_write;struct regcache *regcache, int cookednum, const gdb_byte *buf;regcache, cookednum, buf
440 v;int;num_regs;;;0;-1
441 # This macro gives the number of pseudo-registers that live in the
442 # register namespace but do not get fetched or stored on the target.
443 # These pseudo-registers may be aliases for other registers,
444 # combinations of other registers, or they may be computed by GDB.
445 v;int;num_pseudo_regs;;;0;0;;0
447 # Assemble agent expression bytecode to collect pseudo-register REG.
448 # Return -1 if something goes wrong, 0 otherwise.
449 M;int;ax_pseudo_register_collect;struct agent_expr *ax, int reg;ax, reg
451 # Assemble agent expression bytecode to push the value of pseudo-register
452 # REG on the interpreter stack.
453 # Return -1 if something goes wrong, 0 otherwise.
454 M;int;ax_pseudo_register_push_stack;struct agent_expr *ax, int reg;ax, reg
456 # Some targets/architectures can do extra processing/display of
457 # segmentation faults. E.g., Intel MPX boundary faults.
458 # Call the architecture dependent function to handle the fault.
459 # UIOUT is the output stream where the handler will place information.
460 M;void;handle_segmentation_fault;struct ui_out *uiout;uiout
462 # GDB's standard (or well known) register numbers. These can map onto
463 # a real register or a pseudo (computed) register or not be defined at
465 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
466 v;int;sp_regnum;;;-1;-1;;0
467 v;int;pc_regnum;;;-1;-1;;0
468 v;int;ps_regnum;;;-1;-1;;0
469 v;int;fp0_regnum;;;0;-1;;0
470 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
471 m;int;stab_reg_to_regnum;int stab_regnr;stab_regnr;;no_op_reg_to_regnum;;0
472 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
473 m;int;ecoff_reg_to_regnum;int ecoff_regnr;ecoff_regnr;;no_op_reg_to_regnum;;0
474 # Convert from an sdb register number to an internal gdb register number.
475 m;int;sdb_reg_to_regnum;int sdb_regnr;sdb_regnr;;no_op_reg_to_regnum;;0
476 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
477 # Return -1 for bad REGNUM. Note: Several targets get this wrong.
478 m;int;dwarf2_reg_to_regnum;int dwarf2_regnr;dwarf2_regnr;;no_op_reg_to_regnum;;0
479 m;const char *;register_name;int regnr;regnr;;0
481 # Return the type of a register specified by the architecture. Only
482 # the register cache should call this function directly; others should
483 # use "register_type".
484 M;struct type *;register_type;int reg_nr;reg_nr
486 M;struct frame_id;dummy_id;struct frame_info *this_frame;this_frame
487 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
488 # deprecated_fp_regnum.
489 v;int;deprecated_fp_regnum;;;-1;-1;;0
491 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
492 v;int;call_dummy_location;;;;AT_ENTRY_POINT;;0
493 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
495 # Return true if the code of FRAME is writable.
496 m;int;code_of_frame_writable;struct frame_info *frame;frame;;default_code_of_frame_writable;;0
498 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
499 m;void;print_float_info;struct ui_file *file, struct frame_info *frame, const char *args;file, frame, args;;default_print_float_info;;0
500 M;void;print_vector_info;struct ui_file *file, struct frame_info *frame, const char *args;file, frame, args
501 # MAP a GDB RAW register number onto a simulator register number. See
502 # also include/...-sim.h.
503 m;int;register_sim_regno;int reg_nr;reg_nr;;legacy_register_sim_regno;;0
504 m;int;cannot_fetch_register;int regnum;regnum;;cannot_register_not;;0
505 m;int;cannot_store_register;int regnum;regnum;;cannot_register_not;;0
507 # Determine the address where a longjmp will land and save this address
508 # in PC. Return nonzero on success.
510 # FRAME corresponds to the longjmp frame.
511 F;int;get_longjmp_target;struct frame_info *frame, CORE_ADDR *pc;frame, pc
514 v;int;believe_pcc_promotion;;;;;;;
516 m;int;convert_register_p;int regnum, struct type *type;regnum, type;0;generic_convert_register_p;;0
517 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
518 f;void;value_to_register;struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf;frame, regnum, type, buf;0
519 # Construct a value representing the contents of register REGNUM in
520 # frame FRAME_ID, interpreted as type TYPE. The routine needs to
521 # allocate and return a struct value with all value attributes
522 # (but not the value contents) filled in.
523 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
525 m;CORE_ADDR;pointer_to_address;struct type *type, const gdb_byte *buf;type, buf;;unsigned_pointer_to_address;;0
526 m;void;address_to_pointer;struct type *type, gdb_byte *buf, CORE_ADDR addr;type, buf, addr;;unsigned_address_to_pointer;;0
527 M;CORE_ADDR;integer_to_address;struct type *type, const gdb_byte *buf;type, buf
529 # Return the return-value convention that will be used by FUNCTION
530 # to return a value of type VALTYPE. FUNCTION may be NULL in which
531 # case the return convention is computed based only on VALTYPE.
533 # If READBUF is not NULL, extract the return value and save it in this buffer.
535 # If WRITEBUF is not NULL, it contains a return value which will be
536 # stored into the appropriate register. This can be used when we want
537 # to force the value returned by a function (see the "return" command
539 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
541 # Return true if the return value of function is stored in the first hidden
542 # parameter. In theory, this feature should be language-dependent, specified
543 # by language and its ABI, such as C++. Unfortunately, compiler may
544 # implement it to a target-dependent feature. So that we need such hook here
545 # to be aware of this in GDB.
546 m;int;return_in_first_hidden_param_p;struct type *type;type;;default_return_in_first_hidden_param_p;;0
548 m;CORE_ADDR;skip_prologue;CORE_ADDR ip;ip;0;0
549 M;CORE_ADDR;skip_main_prologue;CORE_ADDR ip;ip
550 # On some platforms, a single function may provide multiple entry points,
551 # e.g. one that is used for function-pointer calls and a different one
552 # that is used for direct function calls.
553 # In order to ensure that breakpoints set on the function will trigger
554 # no matter via which entry point the function is entered, a platform
555 # may provide the skip_entrypoint callback. It is called with IP set
556 # to the main entry point of a function (as determined by the symbol table),
557 # and should return the address of the innermost entry point, where the
558 # actual breakpoint needs to be set. Note that skip_entrypoint is used
559 # by GDB common code even when debugging optimized code, where skip_prologue
561 M;CORE_ADDR;skip_entrypoint;CORE_ADDR ip;ip
563 f;int;inner_than;CORE_ADDR lhs, CORE_ADDR rhs;lhs, rhs;0;0
564 m;const gdb_byte *;breakpoint_from_pc;CORE_ADDR *pcptr, int *lenptr;pcptr, lenptr;0;default_breakpoint_from_pc;;0
566 # Return the breakpoint kind for this target based on *PCPTR.
567 m;int;breakpoint_kind_from_pc;CORE_ADDR *pcptr;pcptr;;0;
569 # Return the software breakpoint from KIND. KIND can have target
570 # specific meaning like the Z0 kind parameter.
571 # SIZE is set to the software breakpoint's length in memory.
572 m;const gdb_byte *;sw_breakpoint_from_kind;int kind, int *size;kind, size;;NULL;;0
574 # Return the breakpoint kind for this target based on the current
575 # processor state (e.g. the current instruction mode on ARM) and the
576 # *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc.
577 m;int;breakpoint_kind_from_current_state;struct regcache *regcache, CORE_ADDR *pcptr;regcache, pcptr;0;default_breakpoint_kind_from_current_state;;0
579 M;CORE_ADDR;adjust_breakpoint_address;CORE_ADDR bpaddr;bpaddr
580 m;int;memory_insert_breakpoint;struct bp_target_info *bp_tgt;bp_tgt;0;default_memory_insert_breakpoint;;0
581 m;int;memory_remove_breakpoint;struct bp_target_info *bp_tgt;bp_tgt;0;default_memory_remove_breakpoint;;0
582 v;CORE_ADDR;decr_pc_after_break;;;0;;;0
584 # A function can be addressed by either it's "pointer" (possibly a
585 # descriptor address) or "entry point" (first executable instruction).
586 # The method "convert_from_func_ptr_addr" converting the former to the
587 # latter. gdbarch_deprecated_function_start_offset is being used to implement
588 # a simplified subset of that functionality - the function's address
589 # corresponds to the "function pointer" and the function's start
590 # corresponds to the "function entry point" - and hence is redundant.
592 v;CORE_ADDR;deprecated_function_start_offset;;;0;;;0
594 # Return the remote protocol register number associated with this
595 # register. Normally the identity mapping.
596 m;int;remote_register_number;int regno;regno;;default_remote_register_number;;0
598 # Fetch the target specific address used to represent a load module.
599 F;CORE_ADDR;fetch_tls_load_module_address;struct objfile *objfile;objfile
601 v;CORE_ADDR;frame_args_skip;;;0;;;0
602 M;CORE_ADDR;unwind_pc;struct frame_info *next_frame;next_frame
603 M;CORE_ADDR;unwind_sp;struct frame_info *next_frame;next_frame
604 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
605 # frame-base. Enable frame-base before frame-unwind.
606 F;int;frame_num_args;struct frame_info *frame;frame
608 M;CORE_ADDR;frame_align;CORE_ADDR address;address
609 m;int;stabs_argument_has_addr;struct type *type;type;;default_stabs_argument_has_addr;;0
610 v;int;frame_red_zone_size
612 m;CORE_ADDR;convert_from_func_ptr_addr;CORE_ADDR addr, struct target_ops *targ;addr, targ;;convert_from_func_ptr_addr_identity;;0
613 # On some machines there are bits in addresses which are not really
614 # part of the address, but are used by the kernel, the hardware, etc.
615 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
616 # we get a "real" address such as one would find in a symbol table.
617 # This is used only for addresses of instructions, and even then I'm
618 # not sure it's used in all contexts. It exists to deal with there
619 # being a few stray bits in the PC which would mislead us, not as some
620 # sort of generic thing to handle alignment or segmentation (it's
621 # possible it should be in TARGET_READ_PC instead).
622 m;CORE_ADDR;addr_bits_remove;CORE_ADDR addr;addr;;core_addr_identity;;0
624 # On some machines, not all bits of an address word are significant.
625 # For example, on AArch64, the top bits of an address known as the "tag"
626 # are ignored by the kernel, the hardware, etc. and can be regarded as
627 # additional data associated with the address.
628 v;int;significant_addr_bit;;;;;gdbarch_addr_bit (gdbarch);
630 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
631 # indicates if the target needs software single step. An ISA method to
634 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
635 # target can single step. If not, then implement single step using breakpoints.
637 # Return a vector of addresses on which the software single step
638 # breakpoints should be inserted. NULL means software single step is
640 # Multiple breakpoints may be inserted for some instructions such as
641 # conditional branch. However, each implementation must always evaluate
642 # the condition and only put the breakpoint at the branch destination if
643 # the condition is true, so that we ensure forward progress when stepping
644 # past a conditional branch to self.
645 F;std::vector<CORE_ADDR>;software_single_step;struct regcache *regcache;regcache
647 # Return non-zero if the processor is executing a delay slot and a
648 # further single-step is needed before the instruction finishes.
649 M;int;single_step_through_delay;struct frame_info *frame;frame
650 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
651 # disassembler. Perhaps objdump can handle it?
652 f;int;print_insn;bfd_vma vma, struct disassemble_info *info;vma, info;;default_print_insn;;0
653 f;CORE_ADDR;skip_trampoline_code;struct frame_info *frame, CORE_ADDR pc;frame, pc;;generic_skip_trampoline_code;;0
656 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
657 # evaluates non-zero, this is the address where the debugger will place
658 # a step-resume breakpoint to get us past the dynamic linker.
659 m;CORE_ADDR;skip_solib_resolver;CORE_ADDR pc;pc;;generic_skip_solib_resolver;;0
660 # Some systems also have trampoline code for returning from shared libs.
661 m;int;in_solib_return_trampoline;CORE_ADDR pc, const char *name;pc, name;;generic_in_solib_return_trampoline;;0
663 # Return true if PC lies inside an indirect branch thunk.
664 m;bool;in_indirect_branch_thunk;CORE_ADDR pc;pc;;default_in_indirect_branch_thunk;;0
666 # A target might have problems with watchpoints as soon as the stack
667 # frame of the current function has been destroyed. This mostly happens
668 # as the first action in a function's epilogue. stack_frame_destroyed_p()
669 # is defined to return a non-zero value if either the given addr is one
670 # instruction after the stack destroying instruction up to the trailing
671 # return instruction or if we can figure out that the stack frame has
672 # already been invalidated regardless of the value of addr. Targets
673 # which don't suffer from that problem could just let this functionality
675 m;int;stack_frame_destroyed_p;CORE_ADDR addr;addr;0;generic_stack_frame_destroyed_p;;0
676 # Process an ELF symbol in the minimal symbol table in a backend-specific
677 # way. Normally this hook is supposed to do nothing, however if required,
678 # then this hook can be used to apply tranformations to symbols that are
679 # considered special in some way. For example the MIPS backend uses it
680 # to interpret \`st_other' information to mark compressed code symbols so
681 # that they can be treated in the appropriate manner in the processing of
682 # the main symbol table and DWARF-2 records.
683 F;void;elf_make_msymbol_special;asymbol *sym, struct minimal_symbol *msym;sym, msym
684 f;void;coff_make_msymbol_special;int val, struct minimal_symbol *msym;val, msym;;default_coff_make_msymbol_special;;0
685 # Process a symbol in the main symbol table in a backend-specific way.
686 # Normally this hook is supposed to do nothing, however if required,
687 # then this hook can be used to apply tranformations to symbols that
688 # are considered special in some way. This is currently used by the
689 # MIPS backend to make sure compressed code symbols have the ISA bit
690 # set. This in turn is needed for symbol values seen in GDB to match
691 # the values used at the runtime by the program itself, for function
692 # and label references.
693 f;void;make_symbol_special;struct symbol *sym, struct objfile *objfile;sym, objfile;;default_make_symbol_special;;0
694 # Adjust the address retrieved from a DWARF-2 record other than a line
695 # entry in a backend-specific way. Normally this hook is supposed to
696 # return the address passed unchanged, however if that is incorrect for
697 # any reason, then this hook can be used to fix the address up in the
698 # required manner. This is currently used by the MIPS backend to make
699 # sure addresses in FDE, range records, etc. referring to compressed
700 # code have the ISA bit set, matching line information and the symbol
702 f;CORE_ADDR;adjust_dwarf2_addr;CORE_ADDR pc;pc;;default_adjust_dwarf2_addr;;0
703 # Adjust the address updated by a line entry in a backend-specific way.
704 # Normally this hook is supposed to return the address passed unchanged,
705 # however in the case of inconsistencies in these records, this hook can
706 # be used to fix them up in the required manner. This is currently used
707 # by the MIPS backend to make sure all line addresses in compressed code
708 # are presented with the ISA bit set, which is not always the case. This
709 # in turn ensures breakpoint addresses are correctly matched against the
711 f;CORE_ADDR;adjust_dwarf2_line;CORE_ADDR addr, int rel;addr, rel;;default_adjust_dwarf2_line;;0
712 v;int;cannot_step_breakpoint;;;0;0;;0
713 v;int;have_nonsteppable_watchpoint;;;0;0;;0
714 F;int;address_class_type_flags;int byte_size, int dwarf2_addr_class;byte_size, dwarf2_addr_class
715 M;const char *;address_class_type_flags_to_name;int type_flags;type_flags
716 # Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
717 # FS are passed from the generic execute_cfa_program function.
718 m;bool;execute_dwarf_cfa_vendor_op;gdb_byte op, struct dwarf2_frame_state *fs;op, fs;;default_execute_dwarf_cfa_vendor_op;;0
720 # Return the appropriate type_flags for the supplied address class.
721 # This function should return 1 if the address class was recognized and
722 # type_flags was set, zero otherwise.
723 M;int;address_class_name_to_type_flags;const char *name, int *type_flags_ptr;name, type_flags_ptr
724 # Is a register in a group
725 m;int;register_reggroup_p;int regnum, struct reggroup *reggroup;regnum, reggroup;;default_register_reggroup_p;;0
726 # Fetch the pointer to the ith function argument.
727 F;CORE_ADDR;fetch_pointer_argument;struct frame_info *frame, int argi, struct type *type;frame, argi, type
729 # Iterate over all supported register notes in a core file. For each
730 # supported register note section, the iterator must call CB and pass
731 # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
732 # the supported register note sections based on the current register
733 # values. Otherwise it should enumerate all supported register note
735 M;void;iterate_over_regset_sections;iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache;cb, cb_data, regcache
737 # Create core file notes
738 M;char *;make_corefile_notes;bfd *obfd, int *note_size;obfd, note_size
740 # Find core file memory regions
741 M;int;find_memory_regions;find_memory_region_ftype func, void *data;func, data
743 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
744 # core file into buffer READBUF with length LEN. Return the number of bytes read
745 # (zero indicates failure).
746 # failed, otherwise, return the red length of READBUF.
747 M;ULONGEST;core_xfer_shared_libraries;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len
749 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
750 # libraries list from core file into buffer READBUF with length LEN.
751 # Return the number of bytes read (zero indicates failure).
752 M;ULONGEST;core_xfer_shared_libraries_aix;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len
754 # How the core target converts a PTID from a core file to a string.
755 M;const char *;core_pid_to_str;ptid_t ptid;ptid
757 # How the core target extracts the name of a thread from a core file.
758 M;const char *;core_thread_name;struct thread_info *thr;thr
760 # Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
761 # from core file into buffer READBUF with length LEN. Return the number
762 # of bytes read (zero indicates EOF, a negative value indicates failure
).
763 M
;LONGEST
;core_xfer_siginfo
;gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
; readbuf
, offset
, len
765 # BFD target to use when generating a core file.
766 V
;const char
*;gcore_bfd_target
;;;0;0;;;pstring
(gdbarch-
>gcore_bfd_target
)
768 # If the elements of C++ vtables are in-place function descriptors rather
769 # than normal function pointers (which may point to code or a descriptor),
771 v
;int
;vtable_function_descriptors
;;;0;0;;0
773 # Set if the least significant bit of the delta is used instead of the least
774 # significant bit of the pfn for pointers to virtual member functions.
775 v
;int
;vbit_in_delta
;;;0;0;;0
777 # Advance PC to next instruction in order to skip a permanent breakpoint.
778 f
;void
;skip_permanent_breakpoint
;struct regcache
*regcache
;regcache
;default_skip_permanent_breakpoint
;default_skip_permanent_breakpoint
;;0
780 # The maximum length of an instruction on this architecture in bytes.
781 V
;ULONGEST
;max_insn_length
;;;0;0
783 # Copy the instruction at FROM to TO, and make any adjustments
784 # necessary to single-step it at that address.
786 # REGS holds the state the thread's registers will have before
787 # executing the copied instruction; the PC in REGS will refer to FROM,
788 # not the copy at TO. The caller should update it to point at TO later.
790 # Return a pointer to data of the architecture's choice to be passed
791 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
792 # the instruction's effects have been completely simulated, with the
793 # resulting state written back to REGS.
795 # For a general explanation of displaced stepping and how GDB uses it,
796 # see the comments in infrun.c.
798 # The TO area is only guaranteed to have space for
799 # gdbarch_max_insn_length (arch) bytes, so this function must not
800 # write more bytes than that to that area.
802 # If you do not provide this function, GDB assumes that the
803 # architecture does not support displaced stepping.
805 # If the instruction cannot execute out of line, return NULL. The
806 # core falls back to stepping past the instruction in-line instead in
808 M
;struct displaced_step_closure
*;displaced_step_copy_insn
;CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
;from
, to
, regs
810 # Return true if GDB should use hardware single-stepping to execute
811 # the displaced instruction identified by CLOSURE. If false,
812 # GDB will simply restart execution at the displaced instruction
813 # location, and it is up to the target to ensure GDB will receive
814 # control again (e.g. by placing a software breakpoint instruction
815 # into the displaced instruction buffer).
817 # The default implementation returns false on all targets that
818 # provide a gdbarch_software_single_step routine, and true otherwise.
819 m
;int
;displaced_step_hw_singlestep
;struct displaced_step_closure
*closure
;closure
;;default_displaced_step_hw_singlestep
;;0
821 # Fix up the state resulting from successfully single-stepping a
822 # displaced instruction, to give the result we would have gotten from
823 # stepping the instruction in its original location.
825 # REGS is the register state resulting from single-stepping the
826 # displaced instruction.
828 # CLOSURE is the result from the matching call to
829 # gdbarch_displaced_step_copy_insn.
831 # If you provide gdbarch_displaced_step_copy_insn.but not this
832 # function, then GDB assumes that no fixup is needed after
833 # single-stepping the instruction.
835 # For a general explanation of displaced stepping and how GDB uses it,
836 # see the comments in infrun.c.
837 M
;void
;displaced_step_fixup
;struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
;closure
, from
, to
, regs
;;NULL
839 # Return the address of an appropriate place to put displaced
840 # instructions while we step over them. There need only be one such
841 # place, since we're only stepping one thread over a breakpoint at a
844 # For a general explanation of displaced stepping and how GDB uses it,
845 # see the comments in infrun.c.
846 m
;CORE_ADDR
;displaced_step_location
;void
;;;NULL
;;(! gdbarch-
>displaced_step_location
) != (! gdbarch-
>displaced_step_copy_insn
)
848 # Relocate an instruction to execute at a different address. OLDLOC
849 # is the address in the inferior memory where the instruction to
850 # relocate is currently at. On input, TO points to the destination
851 # where we want the instruction to be copied (and possibly adjusted)
852 # to. On output, it points to one past the end of the resulting
853 # instruction(s). The effect of executing the instruction at TO shall
854 # be the same as if executing it at FROM. For example, call
855 # instructions that implicitly push the return address on the stack
856 # should be adjusted to return to the instruction after OLDLOC;
857 # relative branches, and other PC-relative instructions need the
858 # offset adjusted; etc.
859 M
;void
;relocate_instruction
;CORE_ADDR
*to
, CORE_ADDR from
;to
, from
;;NULL
861 # Refresh overlay mapped state for section OSECT.
862 F
;void
;overlay_update
;struct obj_section
*osect
;osect
864 M
;const struct target_desc
*;core_read_description
;struct target_ops
*target
, bfd
*abfd
;target
, abfd
866 # Handle special encoding of static variables in stabs debug info.
867 F
;const char
*;static_transform_name
;const char
*name
;name
868 # Set if the address in N_SO or N_FUN stabs may be zero.
869 v
;int
;sofun_address_maybe_missing
;;;0;0;;0
871 # Parse the instruction at ADDR storing in the record execution log
872 # the registers REGCACHE and memory ranges that will be affected when
873 # the instruction executes, along with their current values.
874 # Return -1 if something goes wrong, 0 otherwise.
875 M
;int
;process_record
;struct regcache
*regcache
, CORE_ADDR addr
;regcache
, addr
877 # Save process state after a signal.
878 # Return -1 if something goes wrong, 0 otherwise.
879 M
;int
;process_record_signal
;struct regcache
*regcache
, enum gdb_signal signal
;regcache
, signal
881 # Signal translation: translate inferior's signal (target's) number
882 # into GDB's representation. The implementation of this method must
883 # be host independent. IOW, don't rely on symbols of the NAT_FILE
884 # header (the nm-*.h files), the host <signal.h> header, or similar
885 # headers. This is mainly used when cross-debugging core files ---
886 # "Live" targets hide the translation behind the target interface
887 # (target_wait, target_resume, etc.).
888 M
;enum gdb_signal
;gdb_signal_from_target
;int signo
;signo
890 # Signal translation: translate the GDB's internal signal number into
891 # the inferior's signal (target's) representation. The implementation
892 # of this method must be host independent. IOW, don't rely on symbols
893 # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
894 # header, or similar headers.
895 # Return the target signal number if found, or -1 if the GDB internal
896 # signal number is invalid.
897 M
;int
;gdb_signal_to_target
;enum gdb_signal signal
;signal
899 # Extra signal info inspection.
901 # Return a type suitable to inspect extra signal information.
902 M
;struct
type *;get_siginfo_type
;void
;
904 # Record architecture-specific information from the symbol table.
905 M
;void
;record_special_symbol
;struct objfile
*objfile
, asymbol
*sym
;objfile
, sym
907 # Function for the 'catch syscall' feature.
909 # Get architecture-specific system calls information from registers.
910 M
;LONGEST
;get_syscall_number
;ptid_t ptid
;ptid
912 # The filename of the XML syscall for this architecture.
913 v
;const char
*;xml_syscall_file
;;;0;0;;0;pstring
(gdbarch-
>xml_syscall_file
)
915 # Information about system calls from this architecture
916 v
;struct syscalls_info
*;syscalls_info
;;;0;0;;0;host_address_to_string
(gdbarch-
>syscalls_info
)
918 # SystemTap related fields and functions.
920 # A NULL-terminated array of prefixes used to mark an integer constant
921 # on the architecture's assembly.
922 # For example, on x86 integer constants are written as:
924 # \$10 ;; integer constant 10
926 # in this case, this prefix would be the character \`\$\'.
927 v
;const char
*const
*;stap_integer_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_integer_prefixes
)
929 # A NULL-terminated array of suffixes used to mark an integer constant
930 # on the architecture's assembly.
931 v
;const char
*const
*;stap_integer_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_integer_suffixes
)
933 # A NULL-terminated array of prefixes used to mark a register name on
934 # the architecture's assembly.
935 # For example, on x86 the register name is written as:
937 # \%eax ;; register eax
939 # in this case, this prefix would be the character \`\%\'.
940 v
;const char
*const
*;stap_register_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_prefixes
)
942 # A NULL-terminated array of suffixes used to mark a register name on
943 # the architecture's assembly.
944 v
;const char
*const
*;stap_register_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_suffixes
)
946 # A NULL-terminated array of prefixes used to mark a register
947 # indirection on the architecture's assembly.
948 # For example, on x86 the register indirection is written as:
950 # \(\%eax\) ;; indirecting eax
952 # in this case, this prefix would be the charater \`\(\'.
954 # Please note that we use the indirection prefix also for register
955 # displacement, e.g., \`4\(\%eax\)\' on x86.
956 v
;const char
*const
*;stap_register_indirection_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_indirection_prefixes
)
958 # A NULL-terminated array of suffixes used to mark a register
959 # indirection on the architecture's assembly.
960 # For example, on x86 the register indirection is written as:
962 # \(\%eax\) ;; indirecting eax
964 # in this case, this prefix would be the charater \`\)\'.
966 # Please note that we use the indirection suffix also for register
967 # displacement, e.g., \`4\(\%eax\)\' on x86.
968 v
;const char
*const
*;stap_register_indirection_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_indirection_suffixes
)
970 # Prefix(es) used to name a register using GDB's nomenclature.
972 # For example, on PPC a register is represented by a number in the assembly
973 # language (e.g., \`10\' is the 10th general-purpose register). However,
974 # inside GDB this same register has an \`r\' appended to its name, so the 10th
975 # register would be represented as \`r10\' internally.
976 v
;const char
*;stap_gdb_register_prefix
;;;0;0;;0;pstring
(gdbarch-
>stap_gdb_register_prefix
)
978 # Suffix used to name a register using GDB's nomenclature.
979 v
;const char
*;stap_gdb_register_suffix
;;;0;0;;0;pstring
(gdbarch-
>stap_gdb_register_suffix
)
981 # Check if S is a single operand.
983 # Single operands can be:
984 # \- Literal integers, e.g. \`\$10\' on x86
985 # \- Register access, e.g. \`\%eax\' on x86
986 # \- Register indirection, e.g. \`\(\%eax\)\' on x86
987 # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
989 # This function should check for these patterns on the string
990 # and return 1 if some were found, or zero otherwise. Please try to match
991 # as much info as you can from the string, i.e., if you have to match
992 # something like \`\(\%\', do not match just the \`\(\'.
993 M
;int
;stap_is_single_operand
;const char
*s
;s
995 # Function used to handle a "special case" in the parser.
997 # A "special case" is considered to be an unknown token, i.e., a token
998 # that the parser does not know how to parse. A good example of special
999 # case would be ARM's register displacement syntax:
1001 # [R0, #4] ;; displacing R0 by 4
1003 # Since the parser assumes that a register displacement is of the form:
1005 # <number> <indirection_prefix> <register_name> <indirection_suffix>
1007 # it means that it will not be able to recognize and parse this odd syntax.
1008 # Therefore, we should add a special case function that will handle this token.
1010 # This function should generate the proper expression form of the expression
1011 # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
1012 # and so on). It should also return 1 if the parsing was successful, or zero
1013 # if the token was not recognized as a special token (in this case, returning
1014 # zero means that the special parser is deferring the parsing to the generic
1015 # parser), and should advance the buffer pointer (p->arg).
1016 M
;int
;stap_parse_special_token
;struct stap_parse_info
*p
;p
1018 # DTrace related functions.
1020 # The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1021 # NARG must be >= 0.
1022 M
;void
;dtrace_parse_probe_argument
;struct parser_state
*pstate
, int narg
;pstate
, narg
1024 # True if the given ADDR does not contain the instruction sequence
1025 # corresponding to a disabled DTrace is-enabled probe.
1026 M
;int
;dtrace_probe_is_enabled
;CORE_ADDR addr
;addr
1028 # Enable a DTrace is-enabled probe at ADDR.
1029 M
;void
;dtrace_enable_probe
;CORE_ADDR addr
;addr
1031 # Disable a DTrace is-enabled probe at ADDR.
1032 M
;void
;dtrace_disable_probe
;CORE_ADDR addr
;addr
1034 # True if the list of shared libraries is one and only for all
1035 # processes, as opposed to a list of shared libraries per inferior.
1036 # This usually means that all processes, although may or may not share
1037 # an address space, will see the same set of symbols at the same
1039 v
;int
;has_global_solist
;;;0;0;;0
1041 # On some targets, even though each inferior has its own private
1042 # address space, the debug interface takes care of making breakpoints
1043 # visible to all address spaces automatically. For such cases,
1044 # this property should be set to true.
1045 v
;int
;has_global_breakpoints
;;;0;0;;0
1047 # True if inferiors share an address space (e.g., uClinux).
1048 m
;int
;has_shared_address_space
;void
;;;default_has_shared_address_space
;;0
1050 # True if a fast tracepoint can be set at an address.
1051 m
;int
;fast_tracepoint_valid_at
;CORE_ADDR addr
, std
::string
*msg
;addr
, msg
;;default_fast_tracepoint_valid_at
;;0
1053 # Guess register state based on tracepoint location. Used for tracepoints
1054 # where no registers have been collected, but there's only one location,
1055 # allowing us to guess the PC value, and perhaps some other registers.
1056 # On entry, regcache has all registers marked as unavailable.
1057 m
;void
;guess_tracepoint_registers
;struct regcache
*regcache
, CORE_ADDR addr
;regcache
, addr
;;default_guess_tracepoint_registers
;;0
1059 # Return the "auto" target charset.
1060 f
;const char
*;auto_charset
;void
;;default_auto_charset
;default_auto_charset
;;0
1061 # Return the "auto" target wide charset.
1062 f
;const char
*;auto_wide_charset
;void
;;default_auto_wide_charset
;default_auto_wide_charset
;;0
1064 # If non-empty, this is a file extension that will be opened in place
1065 # of the file extension reported by the shared library list.
1067 # This is most useful for toolchains that use a post-linker tool,
1068 # where the names of the files run on the target differ in extension
1069 # compared to the names of the files GDB should load for debug info.
1070 v
;const char
*;solib_symbols_extension
;;;;;;;pstring
(gdbarch-
>solib_symbols_extension
)
1072 # If true, the target OS has DOS-based file system semantics. That
1073 # is, absolute paths include a drive name, and the backslash is
1074 # considered a directory separator.
1075 v
;int
;has_dos_based_file_system
;;;0;0;;0
1077 # Generate bytecodes to collect the return address in a frame.
1078 # Since the bytecodes run on the target, possibly with GDB not even
1079 # connected, the full unwinding machinery is not available, and
1080 # typically this function will issue bytecodes for one or more likely
1081 # places that the return address may be found.
1082 m
;void
;gen_return_address
;struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
;ax
, value
, scope
;;default_gen_return_address
;;0
1084 # Implement the "info proc" command.
1085 M
;void
;info_proc
;const char
*args
, enum info_proc_what what
;args
, what
1087 # Implement the "info proc" command for core files. Noe that there
1088 # are two "info_proc"-like methods on gdbarch -- one for core files,
1089 # one for live targets.
1090 M
;void
;core_info_proc
;const char
*args
, enum info_proc_what what
;args
, what
1092 # Iterate over all objfiles in the order that makes the most sense
1093 # for the architecture to make global symbol searches.
1095 # CB is a callback function where OBJFILE is the objfile to be searched,
1096 # and CB_DATA a pointer to user-defined data (the same data that is passed
1097 # when calling this gdbarch method). The iteration stops if this function
1100 # CB_DATA is a pointer to some user-defined data to be passed to
1103 # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1104 # inspected when the symbol search was requested.
1105 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
1107 # Ravenscar arch-dependent ops.
1108 v
;struct ravenscar_arch_ops
*;ravenscar_ops
;;;NULL
;NULL
;;0;host_address_to_string
(gdbarch-
>ravenscar_ops
)
1110 # Return non-zero if the instruction at ADDR is a call; zero otherwise.
1111 m
;int
;insn_is_call
;CORE_ADDR addr
;addr
;;default_insn_is_call
;;0
1113 # Return non-zero if the instruction at ADDR is a return; zero otherwise.
1114 m
;int
;insn_is_ret
;CORE_ADDR addr
;addr
;;default_insn_is_ret
;;0
1116 # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
1117 m
;int
;insn_is_jump
;CORE_ADDR addr
;addr
;;default_insn_is_jump
;;0
1119 # Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1120 # Return 0 if *READPTR is already at the end of the buffer.
1121 # Return -1 if there is insufficient buffer for a whole entry.
1122 # Return 1 if an entry was read into *TYPEP and *VALP.
1123 M
;int
;auxv_parse
;gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
;readptr
, endptr
, typep
, valp
1125 # Print the description of a single auxv entry described by TYPE and VAL
1127 m
;void
;print_auxv_entry
;struct ui_file
*file, CORE_ADDR
type, CORE_ADDR val
;file, type, val
;;default_print_auxv_entry
;;0
1129 # Find the address range of the current inferior's vsyscall/vDSO, and
1130 # write it to *RANGE. If the vsyscall's length can't be determined, a
1131 # range with zero length is returned. Returns true if the vsyscall is
1132 # found, false otherwise.
1133 m
;int
;vsyscall_range
;struct mem_range
*range
;range
;;default_vsyscall_range
;;0
1135 # Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1136 # PROT has GDB_MMAP_PROT_* bitmask format.
1137 # Throw an error if it is not possible. Returned address is always valid.
1138 f
;CORE_ADDR
;infcall_mmap
;CORE_ADDR size
, unsigned prot
;size
, prot
;;default_infcall_mmap
;;0
1140 # Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1141 # Print a warning if it is not possible.
1142 f
;void
;infcall_munmap
;CORE_ADDR addr
, CORE_ADDR size
;addr
, size
;;default_infcall_munmap
;;0
1144 # Return string (caller has to use xfree for it) with options for GCC
1145 # to produce code for this target, typically "-m64", "-m32" or "-m31".
1146 # These options are put before CU's DW_AT_producer compilation options so that
1147 # they can override it. Method may also return NULL.
1148 m
;char
*;gcc_target_options
;void
;;;default_gcc_target_options
;;0
1150 # Return a regular expression that matches names used by this
1151 # architecture in GNU configury triplets. The result is statically
1152 # allocated and must not be freed. The default implementation simply
1153 # returns the BFD architecture name, which is correct in nearly every
1155 m
;const char
*;gnu_triplet_regexp
;void
;;;default_gnu_triplet_regexp
;;0
1157 # Return the size in 8-bit bytes of an addressable memory unit on this
1158 # architecture. This corresponds to the number of 8-bit bytes associated to
1159 # each address in memory.
1160 m
;int
;addressable_memory_unit_size
;void
;;;default_addressable_memory_unit_size
;;0
1162 # Functions for allowing a target to modify its disassembler options.
1163 v
;char
**;disassembler_options
;;;0;0;;0;pstring_ptr
(gdbarch-
>disassembler_options
)
1164 v
;const disasm_options_t
*;valid_disassembler_options
;;;0;0;;0;host_address_to_string
(gdbarch-
>valid_disassembler_options
)
1167 m
;ULONGEST
;type_align
;struct
type *type;type;;default_type_align
;;0
1175 exec > new-gdbarch.log
1176 function_list |
while do_read
1179 ${class} ${returntype} ${function} ($formal)
1183 eval echo \"\ \ \ \
${r}=\
${${r}}\"
1185 if class_is_predicate_p
&& fallback_default_p
1187 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
1191 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
1193 echo "Error: postdefault is useless when invalid_p=0" 1>&2
1197 if class_is_multiarch_p
1199 if class_is_predicate_p
; then :
1200 elif test "x${predefault}" = "x"
1202 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
1211 compare_new gdbarch.log
1217 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
1220 /* Dynamic architecture support for GDB, the GNU debugger.
1222 Copyright (C) 1998-2018 Free Software Foundation, Inc.
1224 This file is part of GDB.
1226 This program is free software; you can redistribute it and/or modify
1227 it under the terms of the GNU General Public License as published by
1228 the Free Software Foundation; either version 3 of the License, or
1229 (at your option) any later version.
1231 This program is distributed in the hope that it will be useful,
1232 but WITHOUT ANY WARRANTY; without even the implied warranty of
1233 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1234 GNU General Public License for more details.
1236 You should have received a copy of the GNU General Public License
1237 along with this program. If not, see <http://www.gnu.org/licenses/>. */
1239 /* This file was created with the aid of \`\`gdbarch.sh''.
1241 The Bourne shell script \`\`gdbarch.sh'' creates the files
1242 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
1243 against the existing \`\`gdbarch.[hc]''. Any differences found
1246 If editing this file, please also run gdbarch.sh and merge any
1247 changes into that script. Conversely, when making sweeping changes
1248 to this file, modifying gdbarch.sh and using its output may prove
1258 exec > new-gdbarch.h
1266 #include "dis-asm.h"
1273 struct minimal_symbol;
1277 struct disassemble_info;
1280 struct bp_target_info;
1283 struct displaced_step_closure;
1287 struct stap_parse_info;
1288 struct parser_state;
1289 struct ravenscar_arch_ops;
1291 struct syscalls_info;
1295 #include "regcache.h"
1297 /* The architecture associated with the inferior through the
1298 connection to the target.
1300 The architecture vector provides some information that is really a
1301 property of the inferior, accessed through a particular target:
1302 ptrace operations; the layout of certain RSP packets; the solib_ops
1303 vector; etc. To differentiate architecture accesses to
1304 per-inferior/target properties from
1305 per-thread/per-frame/per-objfile properties, accesses to
1306 per-inferior/target properties should be made through this
1309 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
1310 extern struct gdbarch *target_gdbarch (void);
1312 /* Callback type for the 'iterate_over_objfiles_in_search_order'
1315 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
1316 (struct objfile *objfile, void *cb_data);
1318 /* Callback type for regset section iterators. The callback usually
1319 invokes the REGSET's supply or collect method, to which it must
1320 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
1321 section name, and HUMAN_NAME is used for diagnostic messages.
1322 CB_DATA should have been passed unchanged through the iterator. */
1324 typedef void (iterate_over_regset_sections_cb)
1325 (const char *sect_name, int size, const struct regset *regset,
1326 const char *human_name, void *cb_data);
1329 # function typedef's
1332 printf "/* The following are pre-initialized by GDBARCH. */\n"
1333 function_list |
while do_read
1338 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1339 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
1343 # function typedef's
1346 printf "/* The following are initialized by the target dependent code. */\n"
1347 function_list |
while do_read
1349 if [ -n "${comment}" ]
1351 echo "${comment}" |
sed \
1357 if class_is_predicate_p
1360 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1362 if class_is_variable_p
1365 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1366 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1368 if class_is_function_p
1371 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1373 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1374 elif class_is_multiarch_p
1376 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1378 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1380 if [ "x${formal}" = "xvoid" ]
1382 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1384 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1386 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1393 /* Definition for an unknown syscall, used basically in error-cases. */
1394 #define UNKNOWN_SYSCALL (-1)
1396 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1399 /* Mechanism for co-ordinating the selection of a specific
1402 GDB targets (*-tdep.c) can register an interest in a specific
1403 architecture. Other GDB components can register a need to maintain
1404 per-architecture data.
1406 The mechanisms below ensures that there is only a loose connection
1407 between the set-architecture command and the various GDB
1408 components. Each component can independently register their need
1409 to maintain architecture specific data with gdbarch.
1413 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1416 The more traditional mega-struct containing architecture specific
1417 data for all the various GDB components was also considered. Since
1418 GDB is built from a variable number of (fairly independent)
1419 components it was determined that the global aproach was not
1423 /* Register a new architectural family with GDB.
1425 Register support for the specified ARCHITECTURE with GDB. When
1426 gdbarch determines that the specified architecture has been
1427 selected, the corresponding INIT function is called.
1431 The INIT function takes two parameters: INFO which contains the
1432 information available to gdbarch about the (possibly new)
1433 architecture; ARCHES which is a list of the previously created
1434 \`\`struct gdbarch'' for this architecture.
1436 The INFO parameter is, as far as possible, be pre-initialized with
1437 information obtained from INFO.ABFD or the global defaults.
1439 The ARCHES parameter is a linked list (sorted most recently used)
1440 of all the previously created architures for this architecture
1441 family. The (possibly NULL) ARCHES->gdbarch can used to access
1442 values from the previously selected architecture for this
1443 architecture family.
1445 The INIT function shall return any of: NULL - indicating that it
1446 doesn't recognize the selected architecture; an existing \`\`struct
1447 gdbarch'' from the ARCHES list - indicating that the new
1448 architecture is just a synonym for an earlier architecture (see
1449 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1450 - that describes the selected architecture (see gdbarch_alloc()).
1452 The DUMP_TDEP function shall print out all target specific values.
1453 Care should be taken to ensure that the function works in both the
1454 multi-arch and non- multi-arch cases. */
1458 struct gdbarch *gdbarch;
1459 struct gdbarch_list *next;
1464 /* Use default: NULL (ZERO). */
1465 const struct bfd_arch_info *bfd_arch_info;
1467 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1468 enum bfd_endian byte_order;
1470 enum bfd_endian byte_order_for_code;
1472 /* Use default: NULL (ZERO). */
1475 /* Use default: NULL (ZERO). */
1478 /* Architecture-specific information. The generic form for targets
1479 that have extra requirements. */
1480 struct gdbarch_tdep_info *tdep_info;
1482 /* Architecture-specific target description data. Numerous targets
1483 need only this, so give them an easy way to hold it. */
1484 struct tdesc_arch_data *tdesc_data;
1486 /* SPU file system ID. This is a single integer, so using the
1487 generic form would only complicate code. Other targets may
1488 reuse this member if suitable. */
1492 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1493 enum gdb_osabi osabi;
1495 /* Use default: NULL (ZERO). */
1496 const struct target_desc *target_desc;
1499 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1500 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1502 /* DEPRECATED - use gdbarch_register() */
1503 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1505 extern void gdbarch_register (enum bfd_architecture architecture,
1506 gdbarch_init_ftype *,
1507 gdbarch_dump_tdep_ftype *);
1510 /* Return a freshly allocated, NULL terminated, array of the valid
1511 architecture names. Since architectures are registered during the
1512 _initialize phase this function only returns useful information
1513 once initialization has been completed. */
1515 extern const char **gdbarch_printable_names (void);
1518 /* Helper function. Search the list of ARCHES for a GDBARCH that
1519 matches the information provided by INFO. */
1521 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1524 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1525 basic initialization using values obtained from the INFO and TDEP
1526 parameters. set_gdbarch_*() functions are called to complete the
1527 initialization of the object. */
1529 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1532 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1533 It is assumed that the caller freeds the \`\`struct
1536 extern void gdbarch_free (struct gdbarch *);
1539 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1540 obstack. The memory is freed when the corresponding architecture
1543 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1544 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1545 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1547 /* Duplicate STRING, returning an equivalent string that's allocated on the
1548 obstack associated with GDBARCH. The string is freed when the corresponding
1549 architecture is also freed. */
1551 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1553 /* Helper function. Force an update of the current architecture.
1555 The actual architecture selected is determined by INFO, \`\`(gdb) set
1556 architecture'' et.al., the existing architecture and BFD's default
1557 architecture. INFO should be initialized to zero and then selected
1558 fields should be updated.
1560 Returns non-zero if the update succeeds. */
1562 extern int gdbarch_update_p (struct gdbarch_info info);
1565 /* Helper function. Find an architecture matching info.
1567 INFO should be initialized using gdbarch_info_init, relevant fields
1568 set, and then finished using gdbarch_info_fill.
1570 Returns the corresponding architecture, or NULL if no matching
1571 architecture was found. */
1573 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1576 /* Helper function. Set the target gdbarch to "gdbarch". */
1578 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1581 /* Register per-architecture data-pointer.
1583 Reserve space for a per-architecture data-pointer. An identifier
1584 for the reserved data-pointer is returned. That identifer should
1585 be saved in a local static variable.
1587 Memory for the per-architecture data shall be allocated using
1588 gdbarch_obstack_zalloc. That memory will be deleted when the
1589 corresponding architecture object is deleted.
1591 When a previously created architecture is re-selected, the
1592 per-architecture data-pointer for that previous architecture is
1593 restored. INIT() is not re-called.
1595 Multiple registrarants for any architecture are allowed (and
1596 strongly encouraged). */
1598 struct gdbarch_data;
1600 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1601 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1602 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1603 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1604 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1605 struct gdbarch_data *data,
1608 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1611 /* Set the dynamic target-system-dependent parameters (architecture,
1612 byte-order, ...) using information found in the BFD. */
1614 extern void set_gdbarch_from_file (bfd *);
1617 /* Initialize the current architecture to the "first" one we find on
1620 extern void initialize_current_architecture (void);
1622 /* gdbarch trace variable */
1623 extern unsigned int gdbarch_debug;
1625 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1630 #../move-if-change new-gdbarch.h gdbarch.h
1631 compare_new gdbarch.h
1638 exec > new-gdbarch.c
1643 #include "arch-utils.h"
1646 #include "inferior.h"
1649 #include "floatformat.h"
1650 #include "reggroups.h"
1652 #include "gdb_obstack.h"
1653 #include "observable.h"
1654 #include "regcache.h"
1655 #include "objfiles.h"
1658 /* Static function declarations */
1660 static void alloc_gdbarch_data (struct gdbarch *);
1662 /* Non-zero if we want to trace architecture code. */
1664 #ifndef GDBARCH_DEBUG
1665 #define GDBARCH_DEBUG 0
1667 unsigned int gdbarch_debug = GDBARCH_DEBUG;
1669 show_gdbarch_debug (struct ui_file *file, int from_tty,
1670 struct cmd_list_element *c, const char *value)
1672 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1676 pformat (const struct floatformat **format)
1681 /* Just print out one of them - this is only for diagnostics. */
1682 return format[0]->name;
1686 pstring (const char *string)
1694 pstring_ptr (char **string)
1696 if (string == NULL || *string == NULL)
1701 /* Helper function to print a list of strings, represented as "const
1702 char *const *". The list is printed comma-separated. */
1705 pstring_list (const char *const *list)
1707 static char ret[100];
1708 const char *const *p;
1715 for (p = list; *p != NULL && offset < sizeof (ret); ++p)
1717 size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
1723 gdb_assert (offset - 2 < sizeof (ret));
1724 ret[offset - 2] = '\0';
1732 # gdbarch open the gdbarch object
1734 printf "/* Maintain the struct gdbarch object. */\n"
1736 printf "struct gdbarch\n"
1738 printf " /* Has this architecture been fully initialized? */\n"
1739 printf " int initialized_p;\n"
1741 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1742 printf " struct obstack *obstack;\n"
1744 printf " /* basic architectural information. */\n"
1745 function_list |
while do_read
1749 printf " ${returntype} ${function};\n"
1753 printf " /* target specific vector. */\n"
1754 printf " struct gdbarch_tdep *tdep;\n"
1755 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1757 printf " /* per-architecture data-pointers. */\n"
1758 printf " unsigned nr_data;\n"
1759 printf " void **data;\n"
1762 /* Multi-arch values.
1764 When extending this structure you must:
1766 Add the field below.
1768 Declare set/get functions and define the corresponding
1771 gdbarch_alloc(): If zero/NULL is not a suitable default,
1772 initialize the new field.
1774 verify_gdbarch(): Confirm that the target updated the field
1777 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1780 get_gdbarch(): Implement the set/get functions (probably using
1781 the macro's as shortcuts).
1786 function_list |
while do_read
1788 if class_is_variable_p
1790 printf " ${returntype} ${function};\n"
1791 elif class_is_function_p
1793 printf " gdbarch_${function}_ftype *${function};\n"
1798 # Create a new gdbarch struct
1801 /* Create a new \`\`struct gdbarch'' based on information provided by
1802 \`\`struct gdbarch_info''. */
1807 gdbarch_alloc (const struct gdbarch_info *info,
1808 struct gdbarch_tdep *tdep)
1810 struct gdbarch *gdbarch;
1812 /* Create an obstack for allocating all the per-architecture memory,
1813 then use that to allocate the architecture vector. */
1814 struct obstack *obstack = XNEW (struct obstack);
1815 obstack_init (obstack);
1816 gdbarch = XOBNEW (obstack, struct gdbarch);
1817 memset (gdbarch, 0, sizeof (*gdbarch));
1818 gdbarch->obstack = obstack;
1820 alloc_gdbarch_data (gdbarch);
1822 gdbarch->tdep = tdep;
1825 function_list |
while do_read
1829 printf " gdbarch->${function} = info->${function};\n"
1833 printf " /* Force the explicit initialization of these. */\n"
1834 function_list |
while do_read
1836 if class_is_function_p || class_is_variable_p
1838 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1840 printf " gdbarch->${function} = ${predefault};\n"
1845 /* gdbarch_alloc() */
1851 # Free a gdbarch struct.
1855 /* Allocate extra space using the per-architecture obstack. */
1858 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1860 void *data = obstack_alloc (arch->obstack, size);
1862 memset (data, 0, size);
1866 /* See gdbarch.h. */
1869 gdbarch_obstack_strdup (struct gdbarch *arch, const char *string)
1871 return obstack_strdup (arch->obstack, string);
1875 /* Free a gdbarch struct. This should never happen in normal
1876 operation --- once you've created a gdbarch, you keep it around.
1877 However, if an architecture's init function encounters an error
1878 building the structure, it may need to clean up a partially
1879 constructed gdbarch. */
1882 gdbarch_free (struct gdbarch *arch)
1884 struct obstack *obstack;
1886 gdb_assert (arch != NULL);
1887 gdb_assert (!arch->initialized_p);
1888 obstack = arch->obstack;
1889 obstack_free (obstack, 0); /* Includes the ARCH. */
1894 # verify a new architecture
1898 /* Ensure that all values in a GDBARCH are reasonable. */
1901 verify_gdbarch (struct gdbarch *gdbarch)
1906 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1907 log.puts ("\n\tbyte-order");
1908 if (gdbarch->bfd_arch_info == NULL)
1909 log.puts ("\n\tbfd_arch_info");
1910 /* Check those that need to be defined for the given multi-arch level. */
1912 function_list |
while do_read
1914 if class_is_function_p || class_is_variable_p
1916 if [ "x${invalid_p}" = "x0" ]
1918 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1919 elif class_is_predicate_p
1921 printf " /* Skip verify of ${function}, has predicate. */\n"
1922 # FIXME: See do_read for potential simplification
1923 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1925 printf " if (${invalid_p})\n"
1926 printf " gdbarch->${function} = ${postdefault};\n"
1927 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1929 printf " if (gdbarch->${function} == ${predefault})\n"
1930 printf " gdbarch->${function} = ${postdefault};\n"
1931 elif [ -n "${postdefault}" ]
1933 printf " if (gdbarch->${function} == 0)\n"
1934 printf " gdbarch->${function} = ${postdefault};\n"
1935 elif [ -n "${invalid_p}" ]
1937 printf " if (${invalid_p})\n"
1938 printf " log.puts (\"\\\\n\\\\t${function}\");\n"
1939 elif [ -n "${predefault}" ]
1941 printf " if (gdbarch->${function} == ${predefault})\n"
1942 printf " log.puts (\"\\\\n\\\\t${function}\");\n"
1948 internal_error (__FILE__, __LINE__,
1949 _("verify_gdbarch: the following are invalid ...%s"),
1954 # dump the structure
1958 /* Print out the details of the current architecture. */
1961 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1963 const char *gdb_nm_file = "<not-defined>";
1965 #if defined (GDB_NM_FILE)
1966 gdb_nm_file = GDB_NM_FILE;
1968 fprintf_unfiltered (file,
1969 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1972 function_list |
sort '-t;' -k 3 |
while do_read
1974 # First the predicate
1975 if class_is_predicate_p
1977 printf " fprintf_unfiltered (file,\n"
1978 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1979 printf " gdbarch_${function}_p (gdbarch));\n"
1981 # Print the corresponding value.
1982 if class_is_function_p
1984 printf " fprintf_unfiltered (file,\n"
1985 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1986 printf " host_address_to_string (gdbarch->${function}));\n"
1989 case "${print}:${returntype}" in
1992 print
="core_addr_to_string_nz (gdbarch->${function})"
1996 print
="plongest (gdbarch->${function})"
2002 printf " fprintf_unfiltered (file,\n"
2003 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
2004 printf " ${print});\n"
2008 if (gdbarch->dump_tdep != NULL)
2009 gdbarch->dump_tdep (gdbarch, file);
2017 struct gdbarch_tdep *
2018 gdbarch_tdep (struct gdbarch *gdbarch)
2020 if (gdbarch_debug >= 2)
2021 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
2022 return gdbarch->tdep;
2026 function_list |
while do_read
2028 if class_is_predicate_p
2032 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
2034 printf " gdb_assert (gdbarch != NULL);\n"
2035 printf " return ${predicate};\n"
2038 if class_is_function_p
2041 printf "${returntype}\n"
2042 if [ "x${formal}" = "xvoid" ]
2044 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2046 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
2049 printf " gdb_assert (gdbarch != NULL);\n"
2050 printf " gdb_assert (gdbarch->${function} != NULL);\n"
2051 if class_is_predicate_p
&& test -n "${predefault}"
2053 # Allow a call to a function with a predicate.
2054 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
2056 printf " if (gdbarch_debug >= 2)\n"
2057 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2058 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
2060 if class_is_multiarch_p
2067 if class_is_multiarch_p
2069 params
="gdbarch, ${actual}"
2074 if [ "x${returntype}" = "xvoid" ]
2076 printf " gdbarch->${function} (${params});\n"
2078 printf " return gdbarch->${function} (${params});\n"
2083 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2084 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
2086 printf " gdbarch->${function} = ${function};\n"
2088 elif class_is_variable_p
2091 printf "${returntype}\n"
2092 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2094 printf " gdb_assert (gdbarch != NULL);\n"
2095 if [ "x${invalid_p}" = "x0" ]
2097 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
2098 elif [ -n "${invalid_p}" ]
2100 printf " /* Check variable is valid. */\n"
2101 printf " gdb_assert (!(${invalid_p}));\n"
2102 elif [ -n "${predefault}" ]
2104 printf " /* Check variable changed from pre-default. */\n"
2105 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
2107 printf " if (gdbarch_debug >= 2)\n"
2108 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2109 printf " return gdbarch->${function};\n"
2113 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2114 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
2116 printf " gdbarch->${function} = ${function};\n"
2118 elif class_is_info_p
2121 printf "${returntype}\n"
2122 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2124 printf " gdb_assert (gdbarch != NULL);\n"
2125 printf " if (gdbarch_debug >= 2)\n"
2126 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2127 printf " return gdbarch->${function};\n"
2132 # All the trailing guff
2136 /* Keep a registry of per-architecture data-pointers required by GDB
2143 gdbarch_data_pre_init_ftype *pre_init;
2144 gdbarch_data_post_init_ftype *post_init;
2147 struct gdbarch_data_registration
2149 struct gdbarch_data *data;
2150 struct gdbarch_data_registration *next;
2153 struct gdbarch_data_registry
2156 struct gdbarch_data_registration *registrations;
2159 struct gdbarch_data_registry gdbarch_data_registry =
2164 static struct gdbarch_data *
2165 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
2166 gdbarch_data_post_init_ftype *post_init)
2168 struct gdbarch_data_registration **curr;
2170 /* Append the new registration. */
2171 for (curr = &gdbarch_data_registry.registrations;
2173 curr = &(*curr)->next);
2174 (*curr) = XNEW (struct gdbarch_data_registration);
2175 (*curr)->next = NULL;
2176 (*curr)->data = XNEW (struct gdbarch_data);
2177 (*curr)->data->index = gdbarch_data_registry.nr++;
2178 (*curr)->data->pre_init = pre_init;
2179 (*curr)->data->post_init = post_init;
2180 (*curr)->data->init_p = 1;
2181 return (*curr)->data;
2184 struct gdbarch_data *
2185 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
2187 return gdbarch_data_register (pre_init, NULL);
2190 struct gdbarch_data *
2191 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
2193 return gdbarch_data_register (NULL, post_init);
2196 /* Create/delete the gdbarch data vector. */
2199 alloc_gdbarch_data (struct gdbarch *gdbarch)
2201 gdb_assert (gdbarch->data == NULL);
2202 gdbarch->nr_data = gdbarch_data_registry.nr;
2203 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
2206 /* Initialize the current value of the specified per-architecture
2210 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
2211 struct gdbarch_data *data,
2214 gdb_assert (data->index < gdbarch->nr_data);
2215 gdb_assert (gdbarch->data[data->index] == NULL);
2216 gdb_assert (data->pre_init == NULL);
2217 gdbarch->data[data->index] = pointer;
2220 /* Return the current value of the specified per-architecture
2224 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
2226 gdb_assert (data->index < gdbarch->nr_data);
2227 if (gdbarch->data[data->index] == NULL)
2229 /* The data-pointer isn't initialized, call init() to get a
2231 if (data->pre_init != NULL)
2232 /* Mid architecture creation: pass just the obstack, and not
2233 the entire architecture, as that way it isn't possible for
2234 pre-init code to refer to undefined architecture
2236 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
2237 else if (gdbarch->initialized_p
2238 && data->post_init != NULL)
2239 /* Post architecture creation: pass the entire architecture
2240 (as all fields are valid), but be careful to also detect
2241 recursive references. */
2243 gdb_assert (data->init_p);
2245 gdbarch->data[data->index] = data->post_init (gdbarch);
2249 /* The architecture initialization hasn't completed - punt -
2250 hope that the caller knows what they are doing. Once
2251 deprecated_set_gdbarch_data has been initialized, this can be
2252 changed to an internal error. */
2254 gdb_assert (gdbarch->data[data->index] != NULL);
2256 return gdbarch->data[data->index];
2260 /* Keep a registry of the architectures known by GDB. */
2262 struct gdbarch_registration
2264 enum bfd_architecture bfd_architecture;
2265 gdbarch_init_ftype *init;
2266 gdbarch_dump_tdep_ftype *dump_tdep;
2267 struct gdbarch_list *arches;
2268 struct gdbarch_registration *next;
2271 static struct gdbarch_registration *gdbarch_registry = NULL;
2274 append_name (const char ***buf, int *nr, const char *name)
2276 *buf = XRESIZEVEC (const char *, *buf, *nr + 1);
2282 gdbarch_printable_names (void)
2284 /* Accumulate a list of names based on the registed list of
2287 const char **arches = NULL;
2288 struct gdbarch_registration *rego;
2290 for (rego = gdbarch_registry;
2294 const struct bfd_arch_info *ap;
2295 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2297 internal_error (__FILE__, __LINE__,
2298 _("gdbarch_architecture_names: multi-arch unknown"));
2301 append_name (&arches, &nr_arches, ap->printable_name);
2306 append_name (&arches, &nr_arches, NULL);
2312 gdbarch_register (enum bfd_architecture bfd_architecture,
2313 gdbarch_init_ftype *init,
2314 gdbarch_dump_tdep_ftype *dump_tdep)
2316 struct gdbarch_registration **curr;
2317 const struct bfd_arch_info *bfd_arch_info;
2319 /* Check that BFD recognizes this architecture */
2320 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2321 if (bfd_arch_info == NULL)
2323 internal_error (__FILE__, __LINE__,
2324 _("gdbarch: Attempt to register "
2325 "unknown architecture (%d)"),
2328 /* Check that we haven't seen this architecture before. */
2329 for (curr = &gdbarch_registry;
2331 curr = &(*curr)->next)
2333 if (bfd_architecture == (*curr)->bfd_architecture)
2334 internal_error (__FILE__, __LINE__,
2335 _("gdbarch: Duplicate registration "
2336 "of architecture (%s)"),
2337 bfd_arch_info->printable_name);
2341 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
2342 bfd_arch_info->printable_name,
2343 host_address_to_string (init));
2345 (*curr) = XNEW (struct gdbarch_registration);
2346 (*curr)->bfd_architecture = bfd_architecture;
2347 (*curr)->init = init;
2348 (*curr)->dump_tdep = dump_tdep;
2349 (*curr)->arches = NULL;
2350 (*curr)->next = NULL;
2354 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2355 gdbarch_init_ftype *init)
2357 gdbarch_register (bfd_architecture, init, NULL);
2361 /* Look for an architecture using gdbarch_info. */
2363 struct gdbarch_list *
2364 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2365 const struct gdbarch_info *info)
2367 for (; arches != NULL; arches = arches->next)
2369 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2371 if (info->byte_order != arches->gdbarch->byte_order)
2373 if (info->osabi != arches->gdbarch->osabi)
2375 if (info->target_desc != arches->gdbarch->target_desc)
2383 /* Find an architecture that matches the specified INFO. Create a new
2384 architecture if needed. Return that new architecture. */
2387 gdbarch_find_by_info (struct gdbarch_info info)
2389 struct gdbarch *new_gdbarch;
2390 struct gdbarch_registration *rego;
2392 /* Fill in missing parts of the INFO struct using a number of
2393 sources: "set ..."; INFOabfd supplied; and the global
2395 gdbarch_info_fill (&info);
2397 /* Must have found some sort of architecture. */
2398 gdb_assert (info.bfd_arch_info != NULL);
2402 fprintf_unfiltered (gdb_stdlog,
2403 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2404 (info.bfd_arch_info != NULL
2405 ? info.bfd_arch_info->printable_name
2407 fprintf_unfiltered (gdb_stdlog,
2408 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2410 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2411 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2413 fprintf_unfiltered (gdb_stdlog,
2414 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2415 info.osabi, gdbarch_osabi_name (info.osabi));
2416 fprintf_unfiltered (gdb_stdlog,
2417 "gdbarch_find_by_info: info.abfd %s\n",
2418 host_address_to_string (info.abfd));
2419 fprintf_unfiltered (gdb_stdlog,
2420 "gdbarch_find_by_info: info.tdep_info %s\n",
2421 host_address_to_string (info.tdep_info));
2424 /* Find the tdep code that knows about this architecture. */
2425 for (rego = gdbarch_registry;
2428 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2433 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2434 "No matching architecture\n");
2438 /* Ask the tdep code for an architecture that matches "info". */
2439 new_gdbarch = rego->init (info, rego->arches);
2441 /* Did the tdep code like it? No. Reject the change and revert to
2442 the old architecture. */
2443 if (new_gdbarch == NULL)
2446 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2447 "Target rejected architecture\n");
2451 /* Is this a pre-existing architecture (as determined by already
2452 being initialized)? Move it to the front of the architecture
2453 list (keeping the list sorted Most Recently Used). */
2454 if (new_gdbarch->initialized_p)
2456 struct gdbarch_list **list;
2457 struct gdbarch_list *self;
2459 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2460 "Previous architecture %s (%s) selected\n",
2461 host_address_to_string (new_gdbarch),
2462 new_gdbarch->bfd_arch_info->printable_name);
2463 /* Find the existing arch in the list. */
2464 for (list = ®o->arches;
2465 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2466 list = &(*list)->next);
2467 /* It had better be in the list of architectures. */
2468 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2471 (*list) = self->next;
2472 /* Insert SELF at the front. */
2473 self->next = rego->arches;
2474 rego->arches = self;
2479 /* It's a new architecture. */
2481 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2482 "New architecture %s (%s) selected\n",
2483 host_address_to_string (new_gdbarch),
2484 new_gdbarch->bfd_arch_info->printable_name);
2486 /* Insert the new architecture into the front of the architecture
2487 list (keep the list sorted Most Recently Used). */
2489 struct gdbarch_list *self = XNEW (struct gdbarch_list);
2490 self->next = rego->arches;
2491 self->gdbarch = new_gdbarch;
2492 rego->arches = self;
2495 /* Check that the newly installed architecture is valid. Plug in
2496 any post init values. */
2497 new_gdbarch->dump_tdep = rego->dump_tdep;
2498 verify_gdbarch (new_gdbarch);
2499 new_gdbarch->initialized_p = 1;
2502 gdbarch_dump (new_gdbarch, gdb_stdlog);
2507 /* Make the specified architecture current. */
2510 set_target_gdbarch (struct gdbarch *new_gdbarch)
2512 gdb_assert (new_gdbarch != NULL);
2513 gdb_assert (new_gdbarch->initialized_p);
2514 current_inferior ()->gdbarch = new_gdbarch;
2515 gdb::observers::architecture_changed.notify (new_gdbarch);
2516 registers_changed ();
2519 /* Return the current inferior's arch. */
2522 target_gdbarch (void)
2524 return current_inferior ()->gdbarch;
2528 _initialize_gdbarch (void)
2530 add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2531 Set architecture debugging."), _("\\
2532 Show architecture debugging."), _("\\
2533 When non-zero, architecture debugging is enabled."),
2536 &setdebuglist, &showdebuglist);
2542 #../move-if-change new-gdbarch.c gdbarch.c
2543 compare_new gdbarch.c