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
364 # The ABI default bit-size and format for "half", "float", "double", and
365 # "long double". These bit/format pairs should eventually be combined
366 # into a single object. For the moment, just initialize them as a pair.
367 # Each format describes both the big and little endian layouts (if
370 v;int;half_bit;;;16;2*TARGET_CHAR_BIT;;0
371 v;const struct floatformat **;half_format;;;;;floatformats_ieee_half;;pformat (gdbarch->half_format)
372 v;int;float_bit;;;8 * sizeof (float);4*TARGET_CHAR_BIT;;0
373 v;const struct floatformat **;float_format;;;;;floatformats_ieee_single;;pformat (gdbarch->float_format)
374 v;int;double_bit;;;8 * sizeof (double);8*TARGET_CHAR_BIT;;0
375 v;const struct floatformat **;double_format;;;;;floatformats_ieee_double;;pformat (gdbarch->double_format)
376 v;int;long_double_bit;;;8 * sizeof (long double);8*TARGET_CHAR_BIT;;0
377 v;const struct floatformat **;long_double_format;;;;;floatformats_ieee_double;;pformat (gdbarch->long_double_format)
379 # The ABI default bit-size for "wchar_t". wchar_t is a built-in type
380 # starting with C++11.
381 v;int;wchar_bit;;;8 * sizeof (wchar_t);4*TARGET_CHAR_BIT;;0
382 # One if \`wchar_t' is signed, zero if unsigned.
383 v;int;wchar_signed;;;1;-1;1
385 # Returns the floating-point format to be used for values of length LENGTH.
386 # NAME, if non-NULL, is the type name, which may be used to distinguish
387 # different target formats of the same length.
388 m;const struct floatformat **;floatformat_for_type;const char *name, int length;name, length;0;default_floatformat_for_type;;0
390 # For most targets, a pointer on the target and its representation as an
391 # address in GDB have the same size and "look the same". For such a
392 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
393 # / addr_bit will be set from it.
395 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
396 # also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
397 # gdbarch_address_to_pointer as well.
399 # ptr_bit is the size of a pointer on the target
400 v;int;ptr_bit;;;8 * sizeof (void*);gdbarch->int_bit;;0
401 # addr_bit is the size of a target address as represented in gdb
402 v;int;addr_bit;;;8 * sizeof (void*);0;gdbarch_ptr_bit (gdbarch);
404 # dwarf2_addr_size is the target address size as used in the Dwarf debug
405 # info. For .debug_frame FDEs, this is supposed to be the target address
406 # size from the associated CU header, and which is equivalent to the
407 # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
408 # Unfortunately there is no good way to determine this value. Therefore
409 # dwarf2_addr_size simply defaults to the target pointer size.
411 # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
412 # defined using the target's pointer size so far.
414 # Note that dwarf2_addr_size only needs to be redefined by a target if the
415 # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
416 # and if Dwarf versions < 4 need to be supported.
417 v;int;dwarf2_addr_size;;;sizeof (void*);0;gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT;
419 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
420 v;int;char_signed;;;1;-1;1
422 F;CORE_ADDR;read_pc;readable_regcache *regcache;regcache
423 F;void;write_pc;struct regcache *regcache, CORE_ADDR val;regcache, val
424 # Function for getting target's idea of a frame pointer. FIXME: GDB's
425 # whole scheme for dealing with "frames" and "frame pointers" needs a
427 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
429 M;enum register_status;pseudo_register_read;readable_regcache *regcache, int cookednum, gdb_byte *buf;regcache, cookednum, buf
430 # Read a register into a new struct value. If the register is wholly
431 # or partly unavailable, this should call mark_value_bytes_unavailable
432 # as appropriate. If this is defined, then pseudo_register_read will
434 M;struct value *;pseudo_register_read_value;readable_regcache *regcache, int cookednum;regcache, cookednum
435 M;void;pseudo_register_write;struct regcache *regcache, int cookednum, const gdb_byte *buf;regcache, cookednum, buf
437 v;int;num_regs;;;0;-1
438 # This macro gives the number of pseudo-registers that live in the
439 # register namespace but do not get fetched or stored on the target.
440 # These pseudo-registers may be aliases for other registers,
441 # combinations of other registers, or they may be computed by GDB.
442 v;int;num_pseudo_regs;;;0;0;;0
444 # Assemble agent expression bytecode to collect pseudo-register REG.
445 # Return -1 if something goes wrong, 0 otherwise.
446 M;int;ax_pseudo_register_collect;struct agent_expr *ax, int reg;ax, reg
448 # Assemble agent expression bytecode to push the value of pseudo-register
449 # REG on the interpreter stack.
450 # Return -1 if something goes wrong, 0 otherwise.
451 M;int;ax_pseudo_register_push_stack;struct agent_expr *ax, int reg;ax, reg
453 # Some targets/architectures can do extra processing/display of
454 # segmentation faults. E.g., Intel MPX boundary faults.
455 # Call the architecture dependent function to handle the fault.
456 # UIOUT is the output stream where the handler will place information.
457 M;void;handle_segmentation_fault;struct ui_out *uiout;uiout
459 # GDB's standard (or well known) register numbers. These can map onto
460 # a real register or a pseudo (computed) register or not be defined at
462 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
463 v;int;sp_regnum;;;-1;-1;;0
464 v;int;pc_regnum;;;-1;-1;;0
465 v;int;ps_regnum;;;-1;-1;;0
466 v;int;fp0_regnum;;;0;-1;;0
467 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
468 m;int;stab_reg_to_regnum;int stab_regnr;stab_regnr;;no_op_reg_to_regnum;;0
469 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
470 m;int;ecoff_reg_to_regnum;int ecoff_regnr;ecoff_regnr;;no_op_reg_to_regnum;;0
471 # Convert from an sdb register number to an internal gdb register number.
472 m;int;sdb_reg_to_regnum;int sdb_regnr;sdb_regnr;;no_op_reg_to_regnum;;0
473 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
474 # Return -1 for bad REGNUM. Note: Several targets get this wrong.
475 m;int;dwarf2_reg_to_regnum;int dwarf2_regnr;dwarf2_regnr;;no_op_reg_to_regnum;;0
476 m;const char *;register_name;int regnr;regnr;;0
478 # Return the type of a register specified by the architecture. Only
479 # the register cache should call this function directly; others should
480 # use "register_type".
481 M;struct type *;register_type;int reg_nr;reg_nr
483 M;struct frame_id;dummy_id;struct frame_info *this_frame;this_frame
484 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
485 # deprecated_fp_regnum.
486 v;int;deprecated_fp_regnum;;;-1;-1;;0
488 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
489 v;int;call_dummy_location;;;;AT_ENTRY_POINT;;0
490 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
492 # Return true if the code of FRAME is writable.
493 m;int;code_of_frame_writable;struct frame_info *frame;frame;;default_code_of_frame_writable;;0
495 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
496 m;void;print_float_info;struct ui_file *file, struct frame_info *frame, const char *args;file, frame, args;;default_print_float_info;;0
497 M;void;print_vector_info;struct ui_file *file, struct frame_info *frame, const char *args;file, frame, args
498 # MAP a GDB RAW register number onto a simulator register number. See
499 # also include/...-sim.h.
500 m;int;register_sim_regno;int reg_nr;reg_nr;;legacy_register_sim_regno;;0
501 m;int;cannot_fetch_register;int regnum;regnum;;cannot_register_not;;0
502 m;int;cannot_store_register;int regnum;regnum;;cannot_register_not;;0
504 # Determine the address where a longjmp will land and save this address
505 # in PC. Return nonzero on success.
507 # FRAME corresponds to the longjmp frame.
508 F;int;get_longjmp_target;struct frame_info *frame, CORE_ADDR *pc;frame, pc
511 v;int;believe_pcc_promotion;;;;;;;
513 m;int;convert_register_p;int regnum, struct type *type;regnum, type;0;generic_convert_register_p;;0
514 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
515 f;void;value_to_register;struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf;frame, regnum, type, buf;0
516 # Construct a value representing the contents of register REGNUM in
517 # frame FRAME_ID, interpreted as type TYPE. The routine needs to
518 # allocate and return a struct value with all value attributes
519 # (but not the value contents) filled in.
520 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
522 m;CORE_ADDR;pointer_to_address;struct type *type, const gdb_byte *buf;type, buf;;unsigned_pointer_to_address;;0
523 m;void;address_to_pointer;struct type *type, gdb_byte *buf, CORE_ADDR addr;type, buf, addr;;unsigned_address_to_pointer;;0
524 M;CORE_ADDR;integer_to_address;struct type *type, const gdb_byte *buf;type, buf
526 # Return the return-value convention that will be used by FUNCTION
527 # to return a value of type VALTYPE. FUNCTION may be NULL in which
528 # case the return convention is computed based only on VALTYPE.
530 # If READBUF is not NULL, extract the return value and save it in this buffer.
532 # If WRITEBUF is not NULL, it contains a return value which will be
533 # stored into the appropriate register. This can be used when we want
534 # to force the value returned by a function (see the "return" command
536 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
538 # Return true if the return value of function is stored in the first hidden
539 # parameter. In theory, this feature should be language-dependent, specified
540 # by language and its ABI, such as C++. Unfortunately, compiler may
541 # implement it to a target-dependent feature. So that we need such hook here
542 # to be aware of this in GDB.
543 m;int;return_in_first_hidden_param_p;struct type *type;type;;default_return_in_first_hidden_param_p;;0
545 m;CORE_ADDR;skip_prologue;CORE_ADDR ip;ip;0;0
546 M;CORE_ADDR;skip_main_prologue;CORE_ADDR ip;ip
547 # On some platforms, a single function may provide multiple entry points,
548 # e.g. one that is used for function-pointer calls and a different one
549 # that is used for direct function calls.
550 # In order to ensure that breakpoints set on the function will trigger
551 # no matter via which entry point the function is entered, a platform
552 # may provide the skip_entrypoint callback. It is called with IP set
553 # to the main entry point of a function (as determined by the symbol table),
554 # and should return the address of the innermost entry point, where the
555 # actual breakpoint needs to be set. Note that skip_entrypoint is used
556 # by GDB common code even when debugging optimized code, where skip_prologue
558 M;CORE_ADDR;skip_entrypoint;CORE_ADDR ip;ip
560 f;int;inner_than;CORE_ADDR lhs, CORE_ADDR rhs;lhs, rhs;0;0
561 m;const gdb_byte *;breakpoint_from_pc;CORE_ADDR *pcptr, int *lenptr;pcptr, lenptr;0;default_breakpoint_from_pc;;0
563 # Return the breakpoint kind for this target based on *PCPTR.
564 m;int;breakpoint_kind_from_pc;CORE_ADDR *pcptr;pcptr;;0;
566 # Return the software breakpoint from KIND. KIND can have target
567 # specific meaning like the Z0 kind parameter.
568 # SIZE is set to the software breakpoint's length in memory.
569 m;const gdb_byte *;sw_breakpoint_from_kind;int kind, int *size;kind, size;;NULL;;0
571 # Return the breakpoint kind for this target based on the current
572 # processor state (e.g. the current instruction mode on ARM) and the
573 # *PCPTR. In default, it is gdbarch->breakpoint_kind_from_pc.
574 m;int;breakpoint_kind_from_current_state;struct regcache *regcache, CORE_ADDR *pcptr;regcache, pcptr;0;default_breakpoint_kind_from_current_state;;0
576 M;CORE_ADDR;adjust_breakpoint_address;CORE_ADDR bpaddr;bpaddr
577 m;int;memory_insert_breakpoint;struct bp_target_info *bp_tgt;bp_tgt;0;default_memory_insert_breakpoint;;0
578 m;int;memory_remove_breakpoint;struct bp_target_info *bp_tgt;bp_tgt;0;default_memory_remove_breakpoint;;0
579 v;CORE_ADDR;decr_pc_after_break;;;0;;;0
581 # A function can be addressed by either it's "pointer" (possibly a
582 # descriptor address) or "entry point" (first executable instruction).
583 # The method "convert_from_func_ptr_addr" converting the former to the
584 # latter. gdbarch_deprecated_function_start_offset is being used to implement
585 # a simplified subset of that functionality - the function's address
586 # corresponds to the "function pointer" and the function's start
587 # corresponds to the "function entry point" - and hence is redundant.
589 v;CORE_ADDR;deprecated_function_start_offset;;;0;;;0
591 # Return the remote protocol register number associated with this
592 # register. Normally the identity mapping.
593 m;int;remote_register_number;int regno;regno;;default_remote_register_number;;0
595 # Fetch the target specific address used to represent a load module.
596 F;CORE_ADDR;fetch_tls_load_module_address;struct objfile *objfile;objfile
598 v;CORE_ADDR;frame_args_skip;;;0;;;0
599 M;CORE_ADDR;unwind_pc;struct frame_info *next_frame;next_frame
600 M;CORE_ADDR;unwind_sp;struct frame_info *next_frame;next_frame
601 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
602 # frame-base. Enable frame-base before frame-unwind.
603 F;int;frame_num_args;struct frame_info *frame;frame
605 M;CORE_ADDR;frame_align;CORE_ADDR address;address
606 m;int;stabs_argument_has_addr;struct type *type;type;;default_stabs_argument_has_addr;;0
607 v;int;frame_red_zone_size
609 m;CORE_ADDR;convert_from_func_ptr_addr;CORE_ADDR addr, struct target_ops *targ;addr, targ;;convert_from_func_ptr_addr_identity;;0
610 # On some machines there are bits in addresses which are not really
611 # part of the address, but are used by the kernel, the hardware, etc.
612 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
613 # we get a "real" address such as one would find in a symbol table.
614 # This is used only for addresses of instructions, and even then I'm
615 # not sure it's used in all contexts. It exists to deal with there
616 # being a few stray bits in the PC which would mislead us, not as some
617 # sort of generic thing to handle alignment or segmentation (it's
618 # possible it should be in TARGET_READ_PC instead).
619 m;CORE_ADDR;addr_bits_remove;CORE_ADDR addr;addr;;core_addr_identity;;0
621 # On some machines, not all bits of an address word are significant.
622 # For example, on AArch64, the top bits of an address known as the "tag"
623 # are ignored by the kernel, the hardware, etc. and can be regarded as
624 # additional data associated with the address.
625 v;int;significant_addr_bit;;;;;;0
627 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
628 # indicates if the target needs software single step. An ISA method to
631 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
632 # target can single step. If not, then implement single step using breakpoints.
634 # Return a vector of addresses on which the software single step
635 # breakpoints should be inserted. NULL means software single step is
637 # Multiple breakpoints may be inserted for some instructions such as
638 # conditional branch. However, each implementation must always evaluate
639 # the condition and only put the breakpoint at the branch destination if
640 # the condition is true, so that we ensure forward progress when stepping
641 # past a conditional branch to self.
642 F;std::vector<CORE_ADDR>;software_single_step;struct regcache *regcache;regcache
644 # Return non-zero if the processor is executing a delay slot and a
645 # further single-step is needed before the instruction finishes.
646 M;int;single_step_through_delay;struct frame_info *frame;frame
647 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
648 # disassembler. Perhaps objdump can handle it?
649 f;int;print_insn;bfd_vma vma, struct disassemble_info *info;vma, info;;default_print_insn;;0
650 f;CORE_ADDR;skip_trampoline_code;struct frame_info *frame, CORE_ADDR pc;frame, pc;;generic_skip_trampoline_code;;0
653 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
654 # evaluates non-zero, this is the address where the debugger will place
655 # a step-resume breakpoint to get us past the dynamic linker.
656 m;CORE_ADDR;skip_solib_resolver;CORE_ADDR pc;pc;;generic_skip_solib_resolver;;0
657 # Some systems also have trampoline code for returning from shared libs.
658 m;int;in_solib_return_trampoline;CORE_ADDR pc, const char *name;pc, name;;generic_in_solib_return_trampoline;;0
660 # Return true if PC lies inside an indirect branch thunk.
661 m;bool;in_indirect_branch_thunk;CORE_ADDR pc;pc;;default_in_indirect_branch_thunk;;0
663 # A target might have problems with watchpoints as soon as the stack
664 # frame of the current function has been destroyed. This mostly happens
665 # as the first action in a function's epilogue. stack_frame_destroyed_p()
666 # is defined to return a non-zero value if either the given addr is one
667 # instruction after the stack destroying instruction up to the trailing
668 # return instruction or if we can figure out that the stack frame has
669 # already been invalidated regardless of the value of addr. Targets
670 # which don't suffer from that problem could just let this functionality
672 m;int;stack_frame_destroyed_p;CORE_ADDR addr;addr;0;generic_stack_frame_destroyed_p;;0
673 # Process an ELF symbol in the minimal symbol table in a backend-specific
674 # way. Normally this hook is supposed to do nothing, however if required,
675 # then this hook can be used to apply tranformations to symbols that are
676 # considered special in some way. For example the MIPS backend uses it
677 # to interpret \`st_other' information to mark compressed code symbols so
678 # that they can be treated in the appropriate manner in the processing of
679 # the main symbol table and DWARF-2 records.
680 F;void;elf_make_msymbol_special;asymbol *sym, struct minimal_symbol *msym;sym, msym
681 f;void;coff_make_msymbol_special;int val, struct minimal_symbol *msym;val, msym;;default_coff_make_msymbol_special;;0
682 # Process a symbol in the main symbol table in a backend-specific way.
683 # Normally this hook is supposed to do nothing, however if required,
684 # then this hook can be used to apply tranformations to symbols that
685 # are considered special in some way. This is currently used by the
686 # MIPS backend to make sure compressed code symbols have the ISA bit
687 # set. This in turn is needed for symbol values seen in GDB to match
688 # the values used at the runtime by the program itself, for function
689 # and label references.
690 f;void;make_symbol_special;struct symbol *sym, struct objfile *objfile;sym, objfile;;default_make_symbol_special;;0
691 # Adjust the address retrieved from a DWARF-2 record other than a line
692 # entry in a backend-specific way. Normally this hook is supposed to
693 # return the address passed unchanged, however if that is incorrect for
694 # any reason, then this hook can be used to fix the address up in the
695 # required manner. This is currently used by the MIPS backend to make
696 # sure addresses in FDE, range records, etc. referring to compressed
697 # code have the ISA bit set, matching line information and the symbol
699 f;CORE_ADDR;adjust_dwarf2_addr;CORE_ADDR pc;pc;;default_adjust_dwarf2_addr;;0
700 # Adjust the address updated by a line entry in a backend-specific way.
701 # Normally this hook is supposed to return the address passed unchanged,
702 # however in the case of inconsistencies in these records, this hook can
703 # be used to fix them up in the required manner. This is currently used
704 # by the MIPS backend to make sure all line addresses in compressed code
705 # are presented with the ISA bit set, which is not always the case. This
706 # in turn ensures breakpoint addresses are correctly matched against the
708 f;CORE_ADDR;adjust_dwarf2_line;CORE_ADDR addr, int rel;addr, rel;;default_adjust_dwarf2_line;;0
709 v;int;cannot_step_breakpoint;;;0;0;;0
710 # See comment in target.h about continuable, steppable and
711 # non-steppable watchpoints.
712 v;int;have_nonsteppable_watchpoint;;;0;0;;0
713 F;int;address_class_type_flags;int byte_size, int dwarf2_addr_class;byte_size, dwarf2_addr_class
714 M;const char *;address_class_type_flags_to_name;int type_flags;type_flags
715 # Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
716 # FS are passed from the generic execute_cfa_program function.
717 m;bool;execute_dwarf_cfa_vendor_op;gdb_byte op, struct dwarf2_frame_state *fs;op, fs;;default_execute_dwarf_cfa_vendor_op;;0
719 # Return the appropriate type_flags for the supplied address class.
720 # This function should return 1 if the address class was recognized and
721 # type_flags was set, zero otherwise.
722 M;int;address_class_name_to_type_flags;const char *name, int *type_flags_ptr;name, type_flags_ptr
723 # Is a register in a group
724 m;int;register_reggroup_p;int regnum, struct reggroup *reggroup;regnum, reggroup;;default_register_reggroup_p;;0
725 # Fetch the pointer to the ith function argument.
726 F;CORE_ADDR;fetch_pointer_argument;struct frame_info *frame, int argi, struct type *type;frame, argi, type
728 # Iterate over all supported register notes in a core file. For each
729 # supported register note section, the iterator must call CB and pass
730 # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
731 # the supported register note sections based on the current register
732 # values. Otherwise it should enumerate all supported register note
734 M;void;iterate_over_regset_sections;iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache;cb, cb_data, regcache
736 # Create core file notes
737 M;char *;make_corefile_notes;bfd *obfd, int *note_size;obfd, note_size
739 # Find core file memory regions
740 M;int;find_memory_regions;find_memory_region_ftype func, void *data;func, data
742 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
743 # core file into buffer READBUF with length LEN. Return the number of bytes read
744 # (zero indicates failure).
745 # failed, otherwise, return the red length of READBUF.
746 M;ULONGEST;core_xfer_shared_libraries;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len
748 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
749 # libraries list from core file into buffer READBUF with length LEN.
750 # Return the number of bytes read (zero indicates failure).
751 M;ULONGEST;core_xfer_shared_libraries_aix;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len
753 # How the core target converts a PTID from a core file to a string.
754 M;const char *;core_pid_to_str;ptid_t ptid;ptid
756 # How the core target extracts the name of a thread from a core file.
757 M;const char *;core_thread_name;struct thread_info *thr;thr
759 # Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
760 # from core file into buffer READBUF with length LEN. Return the number
761 # of bytes read (zero indicates EOF, a negative value indicates failure).
762 M;LONGEST;core_xfer_siginfo;gdb_byte *readbuf, ULONGEST offset, ULONGEST len; readbuf, offset, len
764 # BFD target to use when generating a core file.
765 V;const char *;gcore_bfd_target;;;0;0;;;pstring (gdbarch->gcore_bfd_target)
767 # If the elements of C++ vtables are in-place function descriptors rather
768 # than normal function pointers (which may point to code or a descriptor),
770 v;int;vtable_function_descriptors;;;0;0;;0
772 # Set if the least significant bit of the delta is used instead of the least
773 # significant bit of the pfn for pointers to virtual member functions.
774 v;int;vbit_in_delta;;;0;0;;0
776 # Advance PC to next instruction in order to skip a permanent breakpoint.
777 f;void;skip_permanent_breakpoint;struct regcache *regcache;regcache;default_skip_permanent_breakpoint;default_skip_permanent_breakpoint;;0
779 # The maximum length of an instruction on this architecture in bytes.
780 V;ULONGEST;max_insn_length;;;0;0
782 # Copy the instruction at FROM to TO, and make any adjustments
783 # necessary to single-step it at that address.
785 # REGS holds the state the thread's registers will have before
786 # executing the copied instruction; the PC in REGS will refer to FROM,
787 # not the copy at TO. The caller should update it to point at TO later.
789 # Return a pointer to data of the architecture's choice to be passed
790 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
791 # the instruction's effects have been completely simulated, with the
792 # resulting state written back to REGS.
794 # For a general explanation of displaced stepping and how GDB uses it,
795 # see the comments in infrun.c.
797 # The TO area is only guaranteed to have space for
798 # gdbarch_max_insn_length (arch) bytes, so this function must not
799 # write more bytes than that to that area.
801 # If you do not provide this function, GDB assumes that the
802 # architecture does not support displaced stepping.
804 # If the instruction cannot execute out of line, return NULL. The
805 # core falls back to stepping past the instruction in-line instead in
807 M;struct displaced_step_closure *;displaced_step_copy_insn;CORE_ADDR from, CORE_ADDR to, struct regcache *regs;from, to, regs
809 # Return true if GDB should use hardware single-stepping to execute
810 # the displaced instruction identified by CLOSURE. If false,
811 # GDB will simply restart execution at the displaced instruction
812 # location, and it is up to the target to ensure GDB will receive
813 # control again (e.g. by placing a software breakpoint instruction
814 # into the displaced instruction buffer).
816 # The default implementation returns false on all targets that
817 # provide a gdbarch_software_single_step routine, and true otherwise.
818 m;int;displaced_step_hw_singlestep;struct displaced_step_closure *closure;closure;;default_displaced_step_hw_singlestep;;0
820 # Fix up the state resulting from successfully single-stepping a
821 # displaced instruction, to give the result we would have gotten from
822 # stepping the instruction in its original location.
824 # REGS is the register state resulting from single-stepping the
825 # displaced instruction.
827 # CLOSURE is the result from the matching call to
828 # gdbarch_displaced_step_copy_insn.
830 # If you provide gdbarch_displaced_step_copy_insn.but not this
831 # function, then GDB assumes that no fixup is needed after
832 # single-stepping the instruction.
834 # For a general explanation of displaced stepping and how GDB uses it,
835 # see the comments in infrun.c.
836 M;void;displaced_step_fixup;struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs;closure, from, to, regs;;NULL
838 # Return the address of an appropriate place to put displaced
839 # instructions while we step over them. There need only be one such
840 # place, since we're only stepping one thread over a breakpoint at a
843 # For a general explanation of displaced stepping and how GDB uses it,
844 # see the comments in infrun.c.
845 m;CORE_ADDR;displaced_step_location;void;;;NULL;;(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
847 # Relocate an instruction to execute at a different address. OLDLOC
848 # is the address in the inferior memory where the instruction to
849 # relocate is currently at. On input, TO points to the destination
850 # where we want the instruction to be copied (and possibly adjusted)
851 # to. On output, it points to one past the end of the resulting
852 # instruction(s). The effect of executing the instruction at TO shall
853 # be the same as if executing it at FROM. For example, call
854 # instructions that implicitly push the return address on the stack
855 # should be adjusted to return to the instruction after OLDLOC;
856 # relative branches, and other PC-relative instructions need the
857 # offset adjusted; etc.
858 M;void;relocate_instruction;CORE_ADDR *to, CORE_ADDR from;to, from;;NULL
860 # Refresh overlay mapped state for section OSECT.
861 F;void;overlay_update;struct obj_section *osect;osect
863 M;const struct target_desc *;core_read_description;struct target_ops *target, bfd *abfd;target, abfd
865 # Handle special encoding of static variables in stabs debug info.
866 F;const char *;static_transform_name;const char *name;name
867 # Set if the address in N_SO or N_FUN stabs may be zero.
868 v;int;sofun_address_maybe_missing;;;0;0;;0
870 # Parse the instruction at ADDR storing in the record execution log
871 # the registers REGCACHE and memory ranges that will be affected when
872 # the instruction executes, along with their current values.
873 # Return -1 if something goes wrong, 0 otherwise.
874 M;int;process_record;struct regcache *regcache, CORE_ADDR addr;regcache, addr
876 # Save process state after a signal.
877 # Return -1 if something goes wrong, 0 otherwise.
878 M;int;process_record_signal;struct regcache *regcache, enum gdb_signal signal;regcache, signal
880 # Signal translation: translate inferior's signal (target's) number
881 # into GDB's representation. The implementation of this method must
882 # be host independent. IOW, don't rely on symbols of the NAT_FILE
883 # header (the nm-*.h files), the host <signal.h> header, or similar
884 # headers. This is mainly used when cross-debugging core files ---
885 # "Live" targets hide the translation behind the target interface
886 # (target_wait, target_resume, etc.).
887 M;enum gdb_signal;gdb_signal_from_target;int signo;signo
889 # Signal translation: translate the GDB's internal signal number into
890 # the inferior's signal (target's) representation. The implementation
891 # of this method must be host independent. IOW, don't rely on symbols
892 # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
893 # header, or similar headers.
894 # Return the target signal number if found, or -1 if the GDB internal
895 # signal number is invalid.
896 M;int;gdb_signal_to_target;enum gdb_signal signal;signal
898 # Extra signal info inspection.
900 # Return a type suitable to inspect extra signal information.
901 M;struct type *;get_siginfo_type;void;
903 # Record architecture-specific information from the symbol table.
904 M;void;record_special_symbol;struct objfile *objfile, asymbol *sym;objfile, sym
906 # Function for the 'catch syscall' feature.
908 # Get architecture-specific system calls information from registers.
909 M;LONGEST;get_syscall_number;thread_info *thread;thread
911 # The filename of the XML syscall for this architecture.
912 v;const char *;xml_syscall_file;;;0;0;;0;pstring (gdbarch->xml_syscall_file)
914 # Information about system calls from this architecture
915 v;struct syscalls_info *;syscalls_info;;;0;0;;0;host_address_to_string (gdbarch->syscalls_info)
917 # SystemTap related fields and functions.
919 # A NULL-terminated array of prefixes used to mark an integer constant
920 # on the architecture's assembly.
921 # For example, on x86 integer constants are written as:
923 # \$10 ;; integer constant 10
925 # in this case, this prefix would be the character \`\$\'.
926 v;const char *const *;stap_integer_prefixes;;;0;0;;0;pstring_list (gdbarch->stap_integer_prefixes)
928 # A NULL-terminated array of suffixes used to mark an integer constant
929 # on the architecture's assembly.
930 v;const char *const *;stap_integer_suffixes;;;0;0;;0;pstring_list (gdbarch->stap_integer_suffixes)
932 # A NULL-terminated array of prefixes used to mark a register name on
933 # the architecture's assembly.
934 # For example, on x86 the register name is written as:
936 # \%eax ;; register eax
938 # in this case, this prefix would be the character \`\%\'.
939 v;const char *const *;stap_register_prefixes;;;0;0;;0;pstring_list (gdbarch->stap_register_prefixes)
941 # A NULL-terminated array of suffixes used to mark a register name on
942 # the architecture's assembly.
943 v;const char *const *;stap_register_suffixes;;;0;0;;0;pstring_list (gdbarch->stap_register_suffixes)
945 # A NULL-terminated array of prefixes used to mark a register
946 # indirection on the architecture's assembly.
947 # For example, on x86 the register indirection is written as:
949 # \(\%eax\) ;; indirecting eax
951 # in this case, this prefix would be the charater \`\(\'.
953 # Please note that we use the indirection prefix also for register
954 # displacement, e.g., \`4\(\%eax\)\' on x86.
955 v;const char *const *;stap_register_indirection_prefixes;;;0;0;;0;pstring_list (gdbarch->stap_register_indirection_prefixes)
957 # A NULL-terminated array of suffixes 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 suffix also for register
966 # displacement, e.g., \`4\(\%eax\)\' on x86.
967 v;const char *const *;stap_register_indirection_suffixes;;;0;0;;0;pstring_list (gdbarch->stap_register_indirection_suffixes)
969 # Prefix(es) used to name a register using GDB's nomenclature.
971 # For example, on PPC a register is represented by a number in the assembly
972 # language (e.g., \`10\' is the 10th general-purpose register). However,
973 # inside GDB this same register has an \`r\' appended to its name, so the 10th
974 # register would be represented as \`r10\' internally.
975 v;const char *;stap_gdb_register_prefix;;;0;0;;0;pstring (gdbarch->stap_gdb_register_prefix)
977 # Suffix used to name a register using GDB's nomenclature.
978 v;const char *;stap_gdb_register_suffix;;;0;0;;0;pstring (gdbarch->stap_gdb_register_suffix)
980 # Check if S is a single operand.
982 # Single operands can be:
983 # \- Literal integers, e.g. \`\$10\' on x86
984 # \- Register access, e.g. \`\%eax\' on x86
985 # \- Register indirection, e.g. \`\(\%eax\)\' on x86
986 # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
988 # This function should check for these patterns on the string
989 # and return 1 if some were found, or zero otherwise. Please try to match
990 # as much info as you can from the string, i.e., if you have to match
991 # something like \`\(\%\', do not match just the \`\(\'.
992 M;int;stap_is_single_operand;const char *s;s
994 # Function used to handle a "special case" in the parser.
996 # A "special case" is considered to be an unknown token, i.e., a token
997 # that the parser does not know how to parse. A good example of special
998 # case would be ARM's register displacement syntax:
1000 # [R0, #4] ;; displacing R0 by 4
1002 # Since the parser assumes that a register displacement is of the form:
1004 # <number> <indirection_prefix> <register_name> <indirection_suffix>
1006 # it means that it will not be able to recognize and parse this odd syntax.
1007 # Therefore, we should add a special case function that will handle this token.
1009 # This function should generate the proper expression form of the expression
1010 # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
1011 # and so on). It should also return 1 if the parsing was successful, or zero
1012 # if the token was not recognized as a special token (in this case, returning
1013 # zero means that the special parser is deferring the parsing to the generic
1014 # parser), and should advance the buffer pointer (p->arg).
1015 M;int;stap_parse_special_token;struct stap_parse_info *p;p
1017 # DTrace related functions.
1019 # The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1020 # NARG must be >= 0.
1021 M;void;dtrace_parse_probe_argument;struct parser_state *pstate, int narg;pstate, narg
1023 # True if the given ADDR does not contain the instruction sequence
1024 # corresponding to a disabled DTrace is-enabled probe.
1025 M;int;dtrace_probe_is_enabled;CORE_ADDR addr;addr
1027 # Enable a DTrace is-enabled probe at ADDR.
1028 M;void;dtrace_enable_probe;CORE_ADDR addr;addr
1030 # Disable a DTrace is-enabled probe at ADDR.
1031 M;void;dtrace_disable_probe;CORE_ADDR addr;addr
1033 # True if the list of shared libraries is one and only for all
1034 # processes, as opposed to a list of shared libraries per inferior.
1035 # This usually means that all processes, although may or may not share
1036 # an address space, will see the same set of symbols at the same
1038 v;int;has_global_solist;;;0;0;;0
1040 # On some targets, even though each inferior has its own private
1041 # address space, the debug interface takes care of making breakpoints
1042 # visible to all address spaces automatically. For such cases,
1043 # this property should be set to true.
1044 v;int;has_global_breakpoints;;;0;0;;0
1046 # True if inferiors share an address space (e.g., uClinux).
1047 m;int;has_shared_address_space;void;;;default_has_shared_address_space;;0
1049 # True if a fast tracepoint can be set at an address.
1050 m;int;fast_tracepoint_valid_at;CORE_ADDR addr, std::string *msg;addr, msg;;default_fast_tracepoint_valid_at;;0
1052 # Guess register state based on tracepoint location. Used for tracepoints
1053 # where no registers have been collected, but there's only one location,
1054 # allowing us to guess the PC value, and perhaps some other registers.
1055 # On entry, regcache has all registers marked as unavailable.
1056 m;void;guess_tracepoint_registers;struct regcache *regcache, CORE_ADDR addr;regcache, addr;;default_guess_tracepoint_registers;;0
1058 # Return the "auto" target charset.
1059 f;const char *;auto_charset;void;;default_auto_charset;default_auto_charset;;0
1060 # Return the "auto" target wide charset.
1061 f;const char *;auto_wide_charset;void;;default_auto_wide_charset;default_auto_wide_charset;;0
1063 # If non-empty, this is a file extension that will be opened in place
1064 # of the file extension reported by the shared library list.
1066 # This is most useful for toolchains that use a post-linker tool,
1067 # where the names of the files run on the target differ in extension
1068 # compared to the names of the files GDB should load for debug info.
1069 v;const char *;solib_symbols_extension;;;;;;;pstring (gdbarch->solib_symbols_extension)
1071 # If true, the target OS has DOS-based file system semantics. That
1072 # is, absolute paths include a drive name, and the backslash is
1073 # considered a directory separator.
1074 v;int;has_dos_based_file_system;;;0;0;;0
1076 # Generate bytecodes to collect the return address in a frame.
1077 # Since the bytecodes run on the target, possibly with GDB not even
1078 # connected, the full unwinding machinery is not available, and
1079 # typically this function will issue bytecodes for one or more likely
1080 # places that the return address may be found.
1081 m;void;gen_return_address;struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope;ax, value, scope;;default_gen_return_address;;0
1083 # Implement the "info proc" command.
1084 M;void;info_proc;const char *args, enum info_proc_what what;args, what
1086 # Implement the "info proc" command for core files. Noe that there
1087 # are two "info_proc"-like methods on gdbarch -- one for core files,
1088 # one for live targets.
1089 M;void;core_info_proc;const char *args, enum info_proc_what what;args, what
1091 # Iterate over all objfiles in the order that makes the most sense
1092 # for the architecture to make global symbol searches.
1094 # CB is a callback function where OBJFILE is the objfile to be searched,
1095 # and CB_DATA a pointer to user-defined data (the same data that is passed
1096 # when calling this gdbarch method). The iteration stops if this function
1099 # CB_DATA is a pointer to some user-defined data to be passed to
1102 # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1103 # inspected when the symbol search was requested.
1104 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
1106 # Ravenscar arch-dependent ops.
1107 v;struct ravenscar_arch_ops *;ravenscar_ops;;;NULL;NULL;;0;host_address_to_string (gdbarch->ravenscar_ops)
1109 # Return non-zero if the instruction at ADDR is a call; zero otherwise.
1110 m;int;insn_is_call;CORE_ADDR addr;addr;;default_insn_is_call;;0
1112 # Return non-zero if the instruction at ADDR is a return; zero otherwise.
1113 m;int;insn_is_ret;CORE_ADDR addr;addr;;default_insn_is_ret;;0
1115 # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
1116 m;int;insn_is_jump;CORE_ADDR addr;addr;;default_insn_is_jump;;0
1118 # Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1119 # Return 0 if *READPTR is already at the end of the buffer.
1120 # Return -1 if there is insufficient buffer for a whole entry.
1121 # Return 1 if an entry was read into *TYPEP and *VALP.
1122 M;int;auxv_parse;gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp;readptr, endptr, typep, valp
1124 # Print the description of a single auxv entry described by TYPE and VAL
1126 m;void;print_auxv_entry;struct ui_file *file, CORE_ADDR type, CORE_ADDR val;file, type, val;;default_print_auxv_entry;;0
1128 # Find the address range of the current inferior's vsyscall/vDSO, and
1129 # write it to *RANGE. If the vsyscall's length can't be determined, a
1130 # range with zero length is returned. Returns true if the vsyscall is
1131 # found, false otherwise.
1132 m;int;vsyscall_range;struct mem_range *range;range;;default_vsyscall_range;;0
1134 # Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1135 # PROT has GDB_MMAP_PROT_* bitmask format.
1136 # Throw an error if it is not possible. Returned address is always valid.
1137 f;CORE_ADDR;infcall_mmap;CORE_ADDR size, unsigned prot;size, prot;;default_infcall_mmap;;0
1139 # Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1140 # Print a warning if it is not possible.
1141 f;void;infcall_munmap;CORE_ADDR addr, CORE_ADDR size;addr, size;;default_infcall_munmap;;0
1143 # Return string (caller has to use xfree for it) with options for GCC
1144 # to produce code for this target, typically "-m64", "-m32" or "-m31".
1145 # These options are put before CU's DW_AT_producer compilation options so that
1146 # they can override it. Method may also return NULL.
1147 m;char *;gcc_target_options;void;;;default_gcc_target_options;;0
1149 # Return a regular expression that matches names used by this
1150 # architecture in GNU configury triplets. The result is statically
1151 # allocated and must not be freed. The default implementation simply
1152 # returns the BFD architecture name, which is correct in nearly every
1154 m;const char *;gnu_triplet_regexp;void;;;default_gnu_triplet_regexp;;0
1156 # Return the size in 8-bit bytes of an addressable memory unit on this
1157 # architecture. This corresponds to the number of 8-bit bytes associated to
1158 # each address in memory.
1159 m;int;addressable_memory_unit_size;void;;;default_addressable_memory_unit_size;;0
1161 # Functions for allowing a target to modify its disassembler options.
1162 v;const char *;disassembler_options_implicit;;;0;0;;0;pstring (gdbarch->disassembler_options_implicit)
1163 v;char **;disassembler_options;;;0;0;;0;pstring_ptr (gdbarch->disassembler_options)
1164 v;const disasm_options_and_args_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"
1267 #include "gdb_obstack.h"
1274 struct minimal_symbol;
1278 struct disassemble_info;
1281 struct bp_target_info;
1284 struct displaced_step_closure;
1288 struct stap_parse_info;
1289 struct parser_state;
1290 struct ravenscar_arch_ops;
1292 struct syscalls_info;
1296 #include "regcache.h"
1298 /* The architecture associated with the inferior through the
1299 connection to the target.
1301 The architecture vector provides some information that is really a
1302 property of the inferior, accessed through a particular target:
1303 ptrace operations; the layout of certain RSP packets; the solib_ops
1304 vector; etc. To differentiate architecture accesses to
1305 per-inferior/target properties from
1306 per-thread/per-frame/per-objfile properties, accesses to
1307 per-inferior/target properties should be made through this
1310 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
1311 extern struct gdbarch *target_gdbarch (void);
1313 /* Callback type for the 'iterate_over_objfiles_in_search_order'
1316 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
1317 (struct objfile *objfile, void *cb_data);
1319 /* Callback type for regset section iterators. The callback usually
1320 invokes the REGSET's supply or collect method, to which it must
1321 pass a buffer - for collects this buffer will need to be created using
1322 COLLECT_SIZE, for supply the existing buffer being read from should
1323 be at least SUPPLY_SIZE. SECT_NAME is a BFD section name, and HUMAN_NAME
1324 is used for diagnostic messages. CB_DATA should have been passed
1325 unchanged through the iterator. */
1327 typedef void (iterate_over_regset_sections_cb)
1328 (const char *sect_name, int supply_size, int collect_size,
1329 const struct regset *regset, const char *human_name, void *cb_data);
1332 # function typedef's
1335 printf "/* The following are pre-initialized by GDBARCH. */\n"
1336 function_list | while do_read
1341 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1342 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
1346 # function typedef's
1349 printf "/* The following are initialized by the target dependent code. */\n"
1350 function_list | while do_read
1352 if [ -n "${comment}" ]
1354 echo "${comment}" | sed \
1360 if class_is_predicate_p
1363 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1365 if class_is_variable_p
1368 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1369 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1371 if class_is_function_p
1374 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1376 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1377 elif class_is_multiarch_p
1379 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1381 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1383 if [ "x${formal}" = "xvoid" ]
1385 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1387 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1389 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1396 /* Definition for an unknown syscall, used basically in error-cases. */
1397 #define UNKNOWN_SYSCALL (-1)
1399 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1402 /* Mechanism for co-ordinating the selection of a specific
1405 GDB targets (*-tdep.c) can register an interest in a specific
1406 architecture. Other GDB components can register a need to maintain
1407 per-architecture data.
1409 The mechanisms below ensures that there is only a loose connection
1410 between the set-architecture command and the various GDB
1411 components. Each component can independently register their need
1412 to maintain architecture specific data with gdbarch.
1416 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1419 The more traditional mega-struct containing architecture specific
1420 data for all the various GDB components was also considered. Since
1421 GDB is built from a variable number of (fairly independent)
1422 components it was determined that the global aproach was not
1426 /* Register a new architectural family with GDB.
1428 Register support for the specified ARCHITECTURE with GDB. When
1429 gdbarch determines that the specified architecture has been
1430 selected, the corresponding INIT function is called.
1434 The INIT function takes two parameters: INFO which contains the
1435 information available to gdbarch about the (possibly new)
1436 architecture; ARCHES which is a list of the previously created
1437 \`\`struct gdbarch'' for this architecture.
1439 The INFO parameter is, as far as possible, be pre-initialized with
1440 information obtained from INFO.ABFD or the global defaults.
1442 The ARCHES parameter is a linked list (sorted most recently used)
1443 of all the previously created architures for this architecture
1444 family. The (possibly NULL) ARCHES->gdbarch can used to access
1445 values from the previously selected architecture for this
1446 architecture family.
1448 The INIT function shall return any of: NULL - indicating that it
1449 doesn't recognize the selected architecture; an existing \`\`struct
1450 gdbarch'' from the ARCHES list - indicating that the new
1451 architecture is just a synonym for an earlier architecture (see
1452 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1453 - that describes the selected architecture (see gdbarch_alloc()).
1455 The DUMP_TDEP function shall print out all target specific values.
1456 Care should be taken to ensure that the function works in both the
1457 multi-arch and non- multi-arch cases. */
1461 struct gdbarch *gdbarch;
1462 struct gdbarch_list *next;
1467 /* Use default: NULL (ZERO). */
1468 const struct bfd_arch_info *bfd_arch_info;
1470 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1471 enum bfd_endian byte_order;
1473 enum bfd_endian byte_order_for_code;
1475 /* Use default: NULL (ZERO). */
1478 /* Use default: NULL (ZERO). */
1481 /* Architecture-specific information. The generic form for targets
1482 that have extra requirements. */
1483 struct gdbarch_tdep_info *tdep_info;
1485 /* Architecture-specific target description data. Numerous targets
1486 need only this, so give them an easy way to hold it. */
1487 struct tdesc_arch_data *tdesc_data;
1489 /* SPU file system ID. This is a single integer, so using the
1490 generic form would only complicate code. Other targets may
1491 reuse this member if suitable. */
1495 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1496 enum gdb_osabi osabi;
1498 /* Use default: NULL (ZERO). */
1499 const struct target_desc *target_desc;
1502 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1503 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1505 /* DEPRECATED - use gdbarch_register() */
1506 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1508 extern void gdbarch_register (enum bfd_architecture architecture,
1509 gdbarch_init_ftype *,
1510 gdbarch_dump_tdep_ftype *);
1513 /* Return a freshly allocated, NULL terminated, array of the valid
1514 architecture names. Since architectures are registered during the
1515 _initialize phase this function only returns useful information
1516 once initialization has been completed. */
1518 extern const char **gdbarch_printable_names (void);
1521 /* Helper function. Search the list of ARCHES for a GDBARCH that
1522 matches the information provided by INFO. */
1524 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1527 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1528 basic initialization using values obtained from the INFO and TDEP
1529 parameters. set_gdbarch_*() functions are called to complete the
1530 initialization of the object. */
1532 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1535 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1536 It is assumed that the caller freeds the \`\`struct
1539 extern void gdbarch_free (struct gdbarch *);
1541 /* Get the obstack owned by ARCH. */
1543 extern obstack *gdbarch_obstack (gdbarch *arch);
1545 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1546 obstack. The memory is freed when the corresponding architecture
1549 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) \
1550 obstack_calloc<TYPE> (gdbarch_obstack ((GDBARCH)), (NR))
1552 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) \
1553 obstack_zalloc<TYPE> (gdbarch_obstack ((GDBARCH)))
1555 /* Duplicate STRING, returning an equivalent string that's allocated on the
1556 obstack associated with GDBARCH. The string is freed when the corresponding
1557 architecture is also freed. */
1559 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1561 /* Helper function. Force an update of the current architecture.
1563 The actual architecture selected is determined by INFO, \`\`(gdb) set
1564 architecture'' et.al., the existing architecture and BFD's default
1565 architecture. INFO should be initialized to zero and then selected
1566 fields should be updated.
1568 Returns non-zero if the update succeeds. */
1570 extern int gdbarch_update_p (struct gdbarch_info info);
1573 /* Helper function. Find an architecture matching info.
1575 INFO should be initialized using gdbarch_info_init, relevant fields
1576 set, and then finished using gdbarch_info_fill.
1578 Returns the corresponding architecture, or NULL if no matching
1579 architecture was found. */
1581 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1584 /* Helper function. Set the target gdbarch to "gdbarch". */
1586 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1589 /* Register per-architecture data-pointer.
1591 Reserve space for a per-architecture data-pointer. An identifier
1592 for the reserved data-pointer is returned. That identifer should
1593 be saved in a local static variable.
1595 Memory for the per-architecture data shall be allocated using
1596 gdbarch_obstack_zalloc. That memory will be deleted when the
1597 corresponding architecture object is deleted.
1599 When a previously created architecture is re-selected, the
1600 per-architecture data-pointer for that previous architecture is
1601 restored. INIT() is not re-called.
1603 Multiple registrarants for any architecture are allowed (and
1604 strongly encouraged). */
1606 struct gdbarch_data;
1608 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1609 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1610 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1611 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1612 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1613 struct gdbarch_data *data,
1616 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1619 /* Set the dynamic target-system-dependent parameters (architecture,
1620 byte-order, ...) using information found in the BFD. */
1622 extern void set_gdbarch_from_file (bfd *);
1625 /* Initialize the current architecture to the "first" one we find on
1628 extern void initialize_current_architecture (void);
1630 /* gdbarch trace variable */
1631 extern unsigned int gdbarch_debug;
1633 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1635 /* Return the number of cooked registers (raw + pseudo) for ARCH. */
1638 gdbarch_num_cooked_regs (gdbarch *arch)
1640 return gdbarch_num_regs (arch) + gdbarch_num_pseudo_regs (arch);
1646 #../move-if-change new-gdbarch.h gdbarch.h
1647 compare_new gdbarch.h
1654 exec > new-gdbarch.c
1659 #include "arch-utils.h"
1662 #include "inferior.h"
1665 #include "floatformat.h"
1666 #include "reggroups.h"
1668 #include "gdb_obstack.h"
1669 #include "observable.h"
1670 #include "regcache.h"
1671 #include "objfiles.h"
1674 /* Static function declarations */
1676 static void alloc_gdbarch_data (struct gdbarch *);
1678 /* Non-zero if we want to trace architecture code. */
1680 #ifndef GDBARCH_DEBUG
1681 #define GDBARCH_DEBUG 0
1683 unsigned int gdbarch_debug = GDBARCH_DEBUG;
1685 show_gdbarch_debug (struct ui_file *file, int from_tty,
1686 struct cmd_list_element *c, const char *value)
1688 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1692 pformat (const struct floatformat **format)
1697 /* Just print out one of them - this is only for diagnostics. */
1698 return format[0]->name;
1702 pstring (const char *string)
1710 pstring_ptr (char **string)
1712 if (string == NULL || *string == NULL)
1717 /* Helper function to print a list of strings, represented as "const
1718 char *const *". The list is printed comma-separated. */
1721 pstring_list (const char *const *list)
1723 static char ret[100];
1724 const char *const *p;
1731 for (p = list; *p != NULL && offset < sizeof (ret); ++p)
1733 size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
1739 gdb_assert (offset - 2 < sizeof (ret));
1740 ret[offset - 2] = '\0';
1748 # gdbarch open the gdbarch object
1750 printf "/* Maintain the struct gdbarch object. */\n"
1752 printf "struct gdbarch\n"
1754 printf " /* Has this architecture been fully initialized? */\n"
1755 printf " int initialized_p;\n"
1757 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1758 printf " struct obstack *obstack;\n"
1760 printf " /* basic architectural information. */\n"
1761 function_list | while do_read
1765 printf " ${returntype} ${function};\n"
1769 printf " /* target specific vector. */\n"
1770 printf " struct gdbarch_tdep *tdep;\n"
1771 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1773 printf " /* per-architecture data-pointers. */\n"
1774 printf " unsigned nr_data;\n"
1775 printf " void **data;\n"
1778 /* Multi-arch values.
1780 When extending this structure you must:
1782 Add the field below.
1784 Declare set/get functions and define the corresponding
1787 gdbarch_alloc(): If zero/NULL is not a suitable default,
1788 initialize the new field.
1790 verify_gdbarch(): Confirm that the target updated the field
1793 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1796 get_gdbarch(): Implement the set/get functions (probably using
1797 the macro's as shortcuts).
1802 function_list | while do_read
1804 if class_is_variable_p
1806 printf " ${returntype} ${function};\n"
1807 elif class_is_function_p
1809 printf " gdbarch_${function}_ftype *${function};\n"
1814 # Create a new gdbarch struct
1817 /* Create a new \`\`struct gdbarch'' based on information provided by
1818 \`\`struct gdbarch_info''. */
1823 gdbarch_alloc (const struct gdbarch_info *info,
1824 struct gdbarch_tdep *tdep)
1826 struct gdbarch *gdbarch;
1828 /* Create an obstack for allocating all the per-architecture memory,
1829 then use that to allocate the architecture vector. */
1830 struct obstack *obstack = XNEW (struct obstack);
1831 obstack_init (obstack);
1832 gdbarch = XOBNEW (obstack, struct gdbarch);
1833 memset (gdbarch, 0, sizeof (*gdbarch));
1834 gdbarch->obstack = obstack;
1836 alloc_gdbarch_data (gdbarch);
1838 gdbarch->tdep = tdep;
1841 function_list | while do_read
1845 printf " gdbarch->${function} = info->${function};\n"
1849 printf " /* Force the explicit initialization of these. */\n"
1850 function_list | while do_read
1852 if class_is_function_p || class_is_variable_p
1854 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1856 printf " gdbarch->${function} = ${predefault};\n"
1861 /* gdbarch_alloc() */
1867 # Free a gdbarch struct.
1872 obstack *gdbarch_obstack (gdbarch *arch)
1874 return arch->obstack;
1877 /* See gdbarch.h. */
1880 gdbarch_obstack_strdup (struct gdbarch *arch, const char *string)
1882 return obstack_strdup (arch->obstack, string);
1886 /* Free a gdbarch struct. This should never happen in normal
1887 operation --- once you've created a gdbarch, you keep it around.
1888 However, if an architecture's init function encounters an error
1889 building the structure, it may need to clean up a partially
1890 constructed gdbarch. */
1893 gdbarch_free (struct gdbarch *arch)
1895 struct obstack *obstack;
1897 gdb_assert (arch != NULL);
1898 gdb_assert (!arch->initialized_p);
1899 obstack = arch->obstack;
1900 obstack_free (obstack, 0); /* Includes the ARCH. */
1905 # verify a new architecture
1909 /* Ensure that all values in a GDBARCH are reasonable. */
1912 verify_gdbarch (struct gdbarch *gdbarch)
1917 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1918 log.puts ("\n\tbyte-order");
1919 if (gdbarch->bfd_arch_info == NULL)
1920 log.puts ("\n\tbfd_arch_info");
1921 /* Check those that need to be defined for the given multi-arch level. */
1923 function_list | while do_read
1925 if class_is_function_p || class_is_variable_p
1927 if [ "x${invalid_p}" = "x0" ]
1929 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1930 elif class_is_predicate_p
1932 printf " /* Skip verify of ${function}, has predicate. */\n"
1933 # FIXME: See do_read for potential simplification
1934 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1936 printf " if (${invalid_p})\n"
1937 printf " gdbarch->${function} = ${postdefault};\n"
1938 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1940 printf " if (gdbarch->${function} == ${predefault})\n"
1941 printf " gdbarch->${function} = ${postdefault};\n"
1942 elif [ -n "${postdefault}" ]
1944 printf " if (gdbarch->${function} == 0)\n"
1945 printf " gdbarch->${function} = ${postdefault};\n"
1946 elif [ -n "${invalid_p}" ]
1948 printf " if (${invalid_p})\n"
1949 printf " log.puts (\"\\\\n\\\\t${function}\");\n"
1950 elif [ -n "${predefault}" ]
1952 printf " if (gdbarch->${function} == ${predefault})\n"
1953 printf " log.puts (\"\\\\n\\\\t${function}\");\n"
1959 internal_error (__FILE__, __LINE__,
1960 _("verify_gdbarch: the following are invalid ...%s"),
1965 # dump the structure
1969 /* Print out the details of the current architecture. */
1972 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1974 const char *gdb_nm_file = "<not-defined>";
1976 #if defined (GDB_NM_FILE)
1977 gdb_nm_file = GDB_NM_FILE;
1979 fprintf_unfiltered (file,
1980 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1983 function_list | sort '-t;' -k 3 | while do_read
1985 # First the predicate
1986 if class_is_predicate_p
1988 printf " fprintf_unfiltered (file,\n"
1989 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1990 printf " gdbarch_${function}_p (gdbarch));\n"
1992 # Print the corresponding value.
1993 if class_is_function_p
1995 printf " fprintf_unfiltered (file,\n"
1996 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1997 printf " host_address_to_string (gdbarch->${function}));\n"
2000 case "${print}:${returntype}" in
2003 print="core_addr_to_string_nz (gdbarch->${function})"
2007 print="plongest (gdbarch->${function})"
2013 printf " fprintf_unfiltered (file,\n"
2014 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
2015 printf " ${print});\n"
2019 if (gdbarch->dump_tdep != NULL)
2020 gdbarch->dump_tdep (gdbarch, file);
2028 struct gdbarch_tdep *
2029 gdbarch_tdep (struct gdbarch *gdbarch)
2031 if (gdbarch_debug >= 2)
2032 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
2033 return gdbarch->tdep;
2037 function_list | while do_read
2039 if class_is_predicate_p
2043 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
2045 printf " gdb_assert (gdbarch != NULL);\n"
2046 printf " return ${predicate};\n"
2049 if class_is_function_p
2052 printf "${returntype}\n"
2053 if [ "x${formal}" = "xvoid" ]
2055 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2057 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
2060 printf " gdb_assert (gdbarch != NULL);\n"
2061 printf " gdb_assert (gdbarch->${function} != NULL);\n"
2062 if class_is_predicate_p && test -n "${predefault}"
2064 # Allow a call to a function with a predicate.
2065 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
2067 printf " if (gdbarch_debug >= 2)\n"
2068 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2069 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
2071 if class_is_multiarch_p
2078 if class_is_multiarch_p
2080 params="gdbarch, ${actual}"
2085 if [ "x${returntype}" = "xvoid" ]
2087 printf " gdbarch->${function} (${params});\n"
2089 printf " return gdbarch->${function} (${params});\n"
2094 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2095 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
2097 printf " gdbarch->${function} = ${function};\n"
2099 elif class_is_variable_p
2102 printf "${returntype}\n"
2103 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2105 printf " gdb_assert (gdbarch != NULL);\n"
2106 if [ "x${invalid_p}" = "x0" ]
2108 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
2109 elif [ -n "${invalid_p}" ]
2111 printf " /* Check variable is valid. */\n"
2112 printf " gdb_assert (!(${invalid_p}));\n"
2113 elif [ -n "${predefault}" ]
2115 printf " /* Check variable changed from pre-default. */\n"
2116 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
2118 printf " if (gdbarch_debug >= 2)\n"
2119 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2120 printf " return gdbarch->${function};\n"
2124 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2125 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
2127 printf " gdbarch->${function} = ${function};\n"
2129 elif class_is_info_p
2132 printf "${returntype}\n"
2133 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2135 printf " gdb_assert (gdbarch != NULL);\n"
2136 printf " if (gdbarch_debug >= 2)\n"
2137 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2138 printf " return gdbarch->${function};\n"
2143 # All the trailing guff
2147 /* Keep a registry of per-architecture data-pointers required by GDB
2154 gdbarch_data_pre_init_ftype *pre_init;
2155 gdbarch_data_post_init_ftype *post_init;
2158 struct gdbarch_data_registration
2160 struct gdbarch_data *data;
2161 struct gdbarch_data_registration *next;
2164 struct gdbarch_data_registry
2167 struct gdbarch_data_registration *registrations;
2170 struct gdbarch_data_registry gdbarch_data_registry =
2175 static struct gdbarch_data *
2176 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
2177 gdbarch_data_post_init_ftype *post_init)
2179 struct gdbarch_data_registration **curr;
2181 /* Append the new registration. */
2182 for (curr = &gdbarch_data_registry.registrations;
2184 curr = &(*curr)->next);
2185 (*curr) = XNEW (struct gdbarch_data_registration);
2186 (*curr)->next = NULL;
2187 (*curr)->data = XNEW (struct gdbarch_data);
2188 (*curr)->data->index = gdbarch_data_registry.nr++;
2189 (*curr)->data->pre_init = pre_init;
2190 (*curr)->data->post_init = post_init;
2191 (*curr)->data->init_p = 1;
2192 return (*curr)->data;
2195 struct gdbarch_data *
2196 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
2198 return gdbarch_data_register (pre_init, NULL);
2201 struct gdbarch_data *
2202 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
2204 return gdbarch_data_register (NULL, post_init);
2207 /* Create/delete the gdbarch data vector. */
2210 alloc_gdbarch_data (struct gdbarch *gdbarch)
2212 gdb_assert (gdbarch->data == NULL);
2213 gdbarch->nr_data = gdbarch_data_registry.nr;
2214 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
2217 /* Initialize the current value of the specified per-architecture
2221 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
2222 struct gdbarch_data *data,
2225 gdb_assert (data->index < gdbarch->nr_data);
2226 gdb_assert (gdbarch->data[data->index] == NULL);
2227 gdb_assert (data->pre_init == NULL);
2228 gdbarch->data[data->index] = pointer;
2231 /* Return the current value of the specified per-architecture
2235 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
2237 gdb_assert (data->index < gdbarch->nr_data);
2238 if (gdbarch->data[data->index] == NULL)
2240 /* The data-pointer isn't initialized, call init() to get a
2242 if (data->pre_init != NULL)
2243 /* Mid architecture creation: pass just the obstack, and not
2244 the entire architecture, as that way it isn't possible for
2245 pre-init code to refer to undefined architecture
2247 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
2248 else if (gdbarch->initialized_p
2249 && data->post_init != NULL)
2250 /* Post architecture creation: pass the entire architecture
2251 (as all fields are valid), but be careful to also detect
2252 recursive references. */
2254 gdb_assert (data->init_p);
2256 gdbarch->data[data->index] = data->post_init (gdbarch);
2260 /* The architecture initialization hasn't completed - punt -
2261 hope that the caller knows what they are doing. Once
2262 deprecated_set_gdbarch_data has been initialized, this can be
2263 changed to an internal error. */
2265 gdb_assert (gdbarch->data[data->index] != NULL);
2267 return gdbarch->data[data->index];
2271 /* Keep a registry of the architectures known by GDB. */
2273 struct gdbarch_registration
2275 enum bfd_architecture bfd_architecture;
2276 gdbarch_init_ftype *init;
2277 gdbarch_dump_tdep_ftype *dump_tdep;
2278 struct gdbarch_list *arches;
2279 struct gdbarch_registration *next;
2282 static struct gdbarch_registration *gdbarch_registry = NULL;
2285 append_name (const char ***buf, int *nr, const char *name)
2287 *buf = XRESIZEVEC (const char *, *buf, *nr + 1);
2293 gdbarch_printable_names (void)
2295 /* Accumulate a list of names based on the registed list of
2298 const char **arches = NULL;
2299 struct gdbarch_registration *rego;
2301 for (rego = gdbarch_registry;
2305 const struct bfd_arch_info *ap;
2306 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2308 internal_error (__FILE__, __LINE__,
2309 _("gdbarch_architecture_names: multi-arch unknown"));
2312 append_name (&arches, &nr_arches, ap->printable_name);
2317 append_name (&arches, &nr_arches, NULL);
2323 gdbarch_register (enum bfd_architecture bfd_architecture,
2324 gdbarch_init_ftype *init,
2325 gdbarch_dump_tdep_ftype *dump_tdep)
2327 struct gdbarch_registration **curr;
2328 const struct bfd_arch_info *bfd_arch_info;
2330 /* Check that BFD recognizes this architecture */
2331 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2332 if (bfd_arch_info == NULL)
2334 internal_error (__FILE__, __LINE__,
2335 _("gdbarch: Attempt to register "
2336 "unknown architecture (%d)"),
2339 /* Check that we haven't seen this architecture before. */
2340 for (curr = &gdbarch_registry;
2342 curr = &(*curr)->next)
2344 if (bfd_architecture == (*curr)->bfd_architecture)
2345 internal_error (__FILE__, __LINE__,
2346 _("gdbarch: Duplicate registration "
2347 "of architecture (%s)"),
2348 bfd_arch_info->printable_name);
2352 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
2353 bfd_arch_info->printable_name,
2354 host_address_to_string (init));
2356 (*curr) = XNEW (struct gdbarch_registration);
2357 (*curr)->bfd_architecture = bfd_architecture;
2358 (*curr)->init = init;
2359 (*curr)->dump_tdep = dump_tdep;
2360 (*curr)->arches = NULL;
2361 (*curr)->next = NULL;
2365 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2366 gdbarch_init_ftype *init)
2368 gdbarch_register (bfd_architecture, init, NULL);
2372 /* Look for an architecture using gdbarch_info. */
2374 struct gdbarch_list *
2375 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2376 const struct gdbarch_info *info)
2378 for (; arches != NULL; arches = arches->next)
2380 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2382 if (info->byte_order != arches->gdbarch->byte_order)
2384 if (info->osabi != arches->gdbarch->osabi)
2386 if (info->target_desc != arches->gdbarch->target_desc)
2394 /* Find an architecture that matches the specified INFO. Create a new
2395 architecture if needed. Return that new architecture. */
2398 gdbarch_find_by_info (struct gdbarch_info info)
2400 struct gdbarch *new_gdbarch;
2401 struct gdbarch_registration *rego;
2403 /* Fill in missing parts of the INFO struct using a number of
2404 sources: "set ..."; INFOabfd supplied; and the global
2406 gdbarch_info_fill (&info);
2408 /* Must have found some sort of architecture. */
2409 gdb_assert (info.bfd_arch_info != NULL);
2413 fprintf_unfiltered (gdb_stdlog,
2414 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2415 (info.bfd_arch_info != NULL
2416 ? info.bfd_arch_info->printable_name
2418 fprintf_unfiltered (gdb_stdlog,
2419 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2421 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2422 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2424 fprintf_unfiltered (gdb_stdlog,
2425 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2426 info.osabi, gdbarch_osabi_name (info.osabi));
2427 fprintf_unfiltered (gdb_stdlog,
2428 "gdbarch_find_by_info: info.abfd %s\n",
2429 host_address_to_string (info.abfd));
2430 fprintf_unfiltered (gdb_stdlog,
2431 "gdbarch_find_by_info: info.tdep_info %s\n",
2432 host_address_to_string (info.tdep_info));
2435 /* Find the tdep code that knows about this architecture. */
2436 for (rego = gdbarch_registry;
2439 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2444 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2445 "No matching architecture\n");
2449 /* Ask the tdep code for an architecture that matches "info". */
2450 new_gdbarch = rego->init (info, rego->arches);
2452 /* Did the tdep code like it? No. Reject the change and revert to
2453 the old architecture. */
2454 if (new_gdbarch == NULL)
2457 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2458 "Target rejected architecture\n");
2462 /* Is this a pre-existing architecture (as determined by already
2463 being initialized)? Move it to the front of the architecture
2464 list (keeping the list sorted Most Recently Used). */
2465 if (new_gdbarch->initialized_p)
2467 struct gdbarch_list **list;
2468 struct gdbarch_list *self;
2470 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2471 "Previous architecture %s (%s) selected\n",
2472 host_address_to_string (new_gdbarch),
2473 new_gdbarch->bfd_arch_info->printable_name);
2474 /* Find the existing arch in the list. */
2475 for (list = ®o->arches;
2476 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2477 list = &(*list)->next);
2478 /* It had better be in the list of architectures. */
2479 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2482 (*list) = self->next;
2483 /* Insert SELF at the front. */
2484 self->next = rego->arches;
2485 rego->arches = self;
2490 /* It's a new architecture. */
2492 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2493 "New architecture %s (%s) selected\n",
2494 host_address_to_string (new_gdbarch),
2495 new_gdbarch->bfd_arch_info->printable_name);
2497 /* Insert the new architecture into the front of the architecture
2498 list (keep the list sorted Most Recently Used). */
2500 struct gdbarch_list *self = XNEW (struct gdbarch_list);
2501 self->next = rego->arches;
2502 self->gdbarch = new_gdbarch;
2503 rego->arches = self;
2506 /* Check that the newly installed architecture is valid. Plug in
2507 any post init values. */
2508 new_gdbarch->dump_tdep = rego->dump_tdep;
2509 verify_gdbarch (new_gdbarch);
2510 new_gdbarch->initialized_p = 1;
2513 gdbarch_dump (new_gdbarch, gdb_stdlog);
2518 /* Make the specified architecture current. */
2521 set_target_gdbarch (struct gdbarch *new_gdbarch)
2523 gdb_assert (new_gdbarch != NULL);
2524 gdb_assert (new_gdbarch->initialized_p);
2525 current_inferior ()->gdbarch = new_gdbarch;
2526 gdb::observers::architecture_changed.notify (new_gdbarch);
2527 registers_changed ();
2530 /* Return the current inferior's arch. */
2533 target_gdbarch (void)
2535 return current_inferior ()->gdbarch;
2539 _initialize_gdbarch (void)
2541 add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2542 Set architecture debugging."), _("\\
2543 Show architecture debugging."), _("\\
2544 When non-zero, architecture debugging is enabled."),
2547 &setdebuglist, &showdebuglist);
2553 #../move-if-change new-gdbarch.c gdbarch.c
2554 compare_new gdbarch.c