3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998-2017 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;struct 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;struct 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;struct 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 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
625 # indicates if the target needs software single step. An ISA method to
628 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
629 # target can single step. If not, then implement single step using breakpoints.
631 # Return a vector of addresses on which the software single step
632 # breakpoints should be inserted. NULL means software single step is
634 # Multiple breakpoints may be inserted for some instructions such as
635 # conditional branch. However, each implementation must always evaluate
636 # the condition and only put the breakpoint at the branch destination if
637 # the condition is true, so that we ensure forward progress when stepping
638 # past a conditional branch to self.
639 F;std::vector<CORE_ADDR>;software_single_step;struct regcache *regcache;regcache
641 # Return non-zero if the processor is executing a delay slot and a
642 # further single-step is needed before the instruction finishes.
643 M;int;single_step_through_delay;struct frame_info *frame;frame
644 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
645 # disassembler. Perhaps objdump can handle it?
646 f;int;print_insn;bfd_vma vma, struct disassemble_info *info;vma, info;;default_print_insn;;0
647 f;CORE_ADDR;skip_trampoline_code;struct frame_info *frame, CORE_ADDR pc;frame, pc;;generic_skip_trampoline_code;;0
650 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
651 # evaluates non-zero, this is the address where the debugger will place
652 # a step-resume breakpoint to get us past the dynamic linker.
653 m;CORE_ADDR;skip_solib_resolver;CORE_ADDR pc;pc;;generic_skip_solib_resolver;;0
654 # Some systems also have trampoline code for returning from shared libs.
655 m;int;in_solib_return_trampoline;CORE_ADDR pc, const char *name;pc, name;;generic_in_solib_return_trampoline;;0
657 # A target might have problems with watchpoints as soon as the stack
658 # frame of the current function has been destroyed. This mostly happens
659 # as the first action in a function's epilogue. stack_frame_destroyed_p()
660 # is defined to return a non-zero value if either the given addr is one
661 # instruction after the stack destroying instruction up to the trailing
662 # return instruction or if we can figure out that the stack frame has
663 # already been invalidated regardless of the value of addr. Targets
664 # which don't suffer from that problem could just let this functionality
666 m;int;stack_frame_destroyed_p;CORE_ADDR addr;addr;0;generic_stack_frame_destroyed_p;;0
667 # Process an ELF symbol in the minimal symbol table in a backend-specific
668 # way. Normally this hook is supposed to do nothing, however if required,
669 # then this hook can be used to apply tranformations to symbols that are
670 # considered special in some way. For example the MIPS backend uses it
671 # to interpret \`st_other' information to mark compressed code symbols so
672 # that they can be treated in the appropriate manner in the processing of
673 # the main symbol table and DWARF-2 records.
674 F;void;elf_make_msymbol_special;asymbol *sym, struct minimal_symbol *msym;sym, msym
675 f;void;coff_make_msymbol_special;int val, struct minimal_symbol *msym;val, msym;;default_coff_make_msymbol_special;;0
676 # Process a symbol in the main symbol table in a backend-specific way.
677 # Normally this hook is supposed to do nothing, however if required,
678 # then this hook can be used to apply tranformations to symbols that
679 # are considered special in some way. This is currently used by the
680 # MIPS backend to make sure compressed code symbols have the ISA bit
681 # set. This in turn is needed for symbol values seen in GDB to match
682 # the values used at the runtime by the program itself, for function
683 # and label references.
684 f;void;make_symbol_special;struct symbol *sym, struct objfile *objfile;sym, objfile;;default_make_symbol_special;;0
685 # Adjust the address retrieved from a DWARF-2 record other than a line
686 # entry in a backend-specific way. Normally this hook is supposed to
687 # return the address passed unchanged, however if that is incorrect for
688 # any reason, then this hook can be used to fix the address up in the
689 # required manner. This is currently used by the MIPS backend to make
690 # sure addresses in FDE, range records, etc. referring to compressed
691 # code have the ISA bit set, matching line information and the symbol
693 f;CORE_ADDR;adjust_dwarf2_addr;CORE_ADDR pc;pc;;default_adjust_dwarf2_addr;;0
694 # Adjust the address updated by a line entry in a backend-specific way.
695 # Normally this hook is supposed to return the address passed unchanged,
696 # however in the case of inconsistencies in these records, this hook can
697 # be used to fix them up in the required manner. This is currently used
698 # by the MIPS backend to make sure all line addresses in compressed code
699 # are presented with the ISA bit set, which is not always the case. This
700 # in turn ensures breakpoint addresses are correctly matched against the
702 f;CORE_ADDR;adjust_dwarf2_line;CORE_ADDR addr, int rel;addr, rel;;default_adjust_dwarf2_line;;0
703 v;int;cannot_step_breakpoint;;;0;0;;0
704 v;int;have_nonsteppable_watchpoint;;;0;0;;0
705 F;int;address_class_type_flags;int byte_size, int dwarf2_addr_class;byte_size, dwarf2_addr_class
706 M;const char *;address_class_type_flags_to_name;int type_flags;type_flags
707 # Execute vendor-specific DWARF Call Frame Instruction. OP is the instruction.
708 # FS are passed from the generic execute_cfa_program function.
709 m;bool;execute_dwarf_cfa_vendor_op;gdb_byte op, struct dwarf2_frame_state *fs;op, fs;;default_execute_dwarf_cfa_vendor_op;;0
711 # Return the appropriate type_flags for the supplied address class.
712 # This function should return 1 if the address class was recognized and
713 # type_flags was set, zero otherwise.
714 M;int;address_class_name_to_type_flags;const char *name, int *type_flags_ptr;name, type_flags_ptr
715 # Is a register in a group
716 m;int;register_reggroup_p;int regnum, struct reggroup *reggroup;regnum, reggroup;;default_register_reggroup_p;;0
717 # Fetch the pointer to the ith function argument.
718 F;CORE_ADDR;fetch_pointer_argument;struct frame_info *frame, int argi, struct type *type;frame, argi, type
720 # Iterate over all supported register notes in a core file. For each
721 # supported register note section, the iterator must call CB and pass
722 # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
723 # the supported register note sections based on the current register
724 # values. Otherwise it should enumerate all supported register note
726 M;void;iterate_over_regset_sections;iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache;cb, cb_data, regcache
728 # Create core file notes
729 M;char *;make_corefile_notes;bfd *obfd, int *note_size;obfd, note_size
731 # Find core file memory regions
732 M;int;find_memory_regions;find_memory_region_ftype func, void *data;func, data
734 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
735 # core file into buffer READBUF with length LEN. Return the number of bytes read
736 # (zero indicates failure).
737 # failed, otherwise, return the red length of READBUF.
738 M;ULONGEST;core_xfer_shared_libraries;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len
740 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
741 # libraries list from core file into buffer READBUF with length LEN.
742 # Return the number of bytes read (zero indicates failure).
743 M;ULONGEST;core_xfer_shared_libraries_aix;gdb_byte *readbuf, ULONGEST offset, ULONGEST len;readbuf, offset, len
745 # How the core target converts a PTID from a core file to a string.
746 M;const char *;core_pid_to_str;ptid_t ptid;ptid
748 # How the core target extracts the name of a thread from a core file.
749 M;const char *;core_thread_name;struct thread_info *thr;thr
751 # Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information
752 # from core file into buffer READBUF with length LEN. Return the number
753 # of bytes read (zero indicates EOF, a negative value indicates failure
).
754 M
;LONGEST
;core_xfer_siginfo
;gdb_byte
*readbuf
, ULONGEST offset
, ULONGEST len
; readbuf
, offset
, len
756 # BFD target to use when generating a core file.
757 V
;const char
*;gcore_bfd_target
;;;0;0;;;pstring
(gdbarch-
>gcore_bfd_target
)
759 # If the elements of C++ vtables are in-place function descriptors rather
760 # than normal function pointers (which may point to code or a descriptor),
762 v
;int
;vtable_function_descriptors
;;;0;0;;0
764 # Set if the least significant bit of the delta is used instead of the least
765 # significant bit of the pfn for pointers to virtual member functions.
766 v
;int
;vbit_in_delta
;;;0;0;;0
768 # Advance PC to next instruction in order to skip a permanent breakpoint.
769 f
;void
;skip_permanent_breakpoint
;struct regcache
*regcache
;regcache
;default_skip_permanent_breakpoint
;default_skip_permanent_breakpoint
;;0
771 # The maximum length of an instruction on this architecture in bytes.
772 V
;ULONGEST
;max_insn_length
;;;0;0
774 # Copy the instruction at FROM to TO, and make any adjustments
775 # necessary to single-step it at that address.
777 # REGS holds the state the thread's registers will have before
778 # executing the copied instruction; the PC in REGS will refer to FROM,
779 # not the copy at TO. The caller should update it to point at TO later.
781 # Return a pointer to data of the architecture's choice to be passed
782 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
783 # the instruction's effects have been completely simulated, with the
784 # resulting state written back to REGS.
786 # For a general explanation of displaced stepping and how GDB uses it,
787 # see the comments in infrun.c.
789 # The TO area is only guaranteed to have space for
790 # gdbarch_max_insn_length (arch) bytes, so this function must not
791 # write more bytes than that to that area.
793 # If you do not provide this function, GDB assumes that the
794 # architecture does not support displaced stepping.
796 # If your architecture doesn't need to adjust instructions before
797 # single-stepping them, consider using simple_displaced_step_copy_insn
800 # If the instruction cannot execute out of line, return NULL. The
801 # core falls back to stepping past the instruction in-line instead in
803 M
;struct displaced_step_closure
*;displaced_step_copy_insn
;CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
;from
, to
, regs
805 # Return true if GDB should use hardware single-stepping to execute
806 # the displaced instruction identified by CLOSURE. If false,
807 # GDB will simply restart execution at the displaced instruction
808 # location, and it is up to the target to ensure GDB will receive
809 # control again (e.g. by placing a software breakpoint instruction
810 # into the displaced instruction buffer).
812 # The default implementation returns false on all targets that
813 # provide a gdbarch_software_single_step routine, and true otherwise.
814 m
;int
;displaced_step_hw_singlestep
;struct displaced_step_closure
*closure
;closure
;;default_displaced_step_hw_singlestep
;;0
816 # Fix up the state resulting from successfully single-stepping a
817 # displaced instruction, to give the result we would have gotten from
818 # stepping the instruction in its original location.
820 # REGS is the register state resulting from single-stepping the
821 # displaced instruction.
823 # CLOSURE is the result from the matching call to
824 # gdbarch_displaced_step_copy_insn.
826 # If you provide gdbarch_displaced_step_copy_insn.but not this
827 # function, then GDB assumes that no fixup is needed after
828 # single-stepping the instruction.
830 # For a general explanation of displaced stepping and how GDB uses it,
831 # see the comments in infrun.c.
832 M
;void
;displaced_step_fixup
;struct displaced_step_closure
*closure
, CORE_ADDR from
, CORE_ADDR to
, struct regcache
*regs
;closure
, from
, to
, regs
;;NULL
834 # Return the address of an appropriate place to put displaced
835 # instructions while we step over them. There need only be one such
836 # place, since we're only stepping one thread over a breakpoint at a
839 # For a general explanation of displaced stepping and how GDB uses it,
840 # see the comments in infrun.c.
841 m
;CORE_ADDR
;displaced_step_location
;void
;;;NULL
;;(! gdbarch-
>displaced_step_location
) != (! gdbarch-
>displaced_step_copy_insn
)
843 # Relocate an instruction to execute at a different address. OLDLOC
844 # is the address in the inferior memory where the instruction to
845 # relocate is currently at. On input, TO points to the destination
846 # where we want the instruction to be copied (and possibly adjusted)
847 # to. On output, it points to one past the end of the resulting
848 # instruction(s). The effect of executing the instruction at TO shall
849 # be the same as if executing it at FROM. For example, call
850 # instructions that implicitly push the return address on the stack
851 # should be adjusted to return to the instruction after OLDLOC;
852 # relative branches, and other PC-relative instructions need the
853 # offset adjusted; etc.
854 M
;void
;relocate_instruction
;CORE_ADDR
*to
, CORE_ADDR from
;to
, from
;;NULL
856 # Refresh overlay mapped state for section OSECT.
857 F
;void
;overlay_update
;struct obj_section
*osect
;osect
859 M
;const struct target_desc
*;core_read_description
;struct target_ops
*target
, bfd
*abfd
;target
, abfd
861 # Handle special encoding of static variables in stabs debug info.
862 F
;const char
*;static_transform_name
;const char
*name
;name
863 # Set if the address in N_SO or N_FUN stabs may be zero.
864 v
;int
;sofun_address_maybe_missing
;;;0;0;;0
866 # Parse the instruction at ADDR storing in the record execution log
867 # the registers REGCACHE and memory ranges that will be affected when
868 # the instruction executes, along with their current values.
869 # Return -1 if something goes wrong, 0 otherwise.
870 M
;int
;process_record
;struct regcache
*regcache
, CORE_ADDR addr
;regcache
, addr
872 # Save process state after a signal.
873 # Return -1 if something goes wrong, 0 otherwise.
874 M
;int
;process_record_signal
;struct regcache
*regcache
, enum gdb_signal signal
;regcache
, signal
876 # Signal translation: translate inferior's signal (target's) number
877 # into GDB's representation. The implementation of this method must
878 # be host independent. IOW, don't rely on symbols of the NAT_FILE
879 # header (the nm-*.h files), the host <signal.h> header, or similar
880 # headers. This is mainly used when cross-debugging core files ---
881 # "Live" targets hide the translation behind the target interface
882 # (target_wait, target_resume, etc.).
883 M
;enum gdb_signal
;gdb_signal_from_target
;int signo
;signo
885 # Signal translation: translate the GDB's internal signal number into
886 # the inferior's signal (target's) representation. The implementation
887 # of this method must be host independent. IOW, don't rely on symbols
888 # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
889 # header, or similar headers.
890 # Return the target signal number if found, or -1 if the GDB internal
891 # signal number is invalid.
892 M
;int
;gdb_signal_to_target
;enum gdb_signal signal
;signal
894 # Extra signal info inspection.
896 # Return a type suitable to inspect extra signal information.
897 M
;struct
type *;get_siginfo_type
;void
;
899 # Record architecture-specific information from the symbol table.
900 M
;void
;record_special_symbol
;struct objfile
*objfile
, asymbol
*sym
;objfile
, sym
902 # Function for the 'catch syscall' feature.
904 # Get architecture-specific system calls information from registers.
905 M
;LONGEST
;get_syscall_number
;ptid_t ptid
;ptid
907 # The filename of the XML syscall for this architecture.
908 v
;const char
*;xml_syscall_file
;;;0;0;;0;pstring
(gdbarch-
>xml_syscall_file
)
910 # Information about system calls from this architecture
911 v
;struct syscalls_info
*;syscalls_info
;;;0;0;;0;host_address_to_string
(gdbarch-
>syscalls_info
)
913 # SystemTap related fields and functions.
915 # A NULL-terminated array of prefixes used to mark an integer constant
916 # on the architecture's assembly.
917 # For example, on x86 integer constants are written as:
919 # \$10 ;; integer constant 10
921 # in this case, this prefix would be the character \`\$\'.
922 v
;const char
*const
*;stap_integer_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_integer_prefixes
)
924 # A NULL-terminated array of suffixes used to mark an integer constant
925 # on the architecture's assembly.
926 v
;const char
*const
*;stap_integer_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_integer_suffixes
)
928 # A NULL-terminated array of prefixes used to mark a register name on
929 # the architecture's assembly.
930 # For example, on x86 the register name is written as:
932 # \%eax ;; register eax
934 # in this case, this prefix would be the character \`\%\'.
935 v
;const char
*const
*;stap_register_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_prefixes
)
937 # A NULL-terminated array of suffixes used to mark a register name on
938 # the architecture's assembly.
939 v
;const char
*const
*;stap_register_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_suffixes
)
941 # A NULL-terminated array of prefixes used to mark a register
942 # indirection on the architecture's assembly.
943 # For example, on x86 the register indirection is written as:
945 # \(\%eax\) ;; indirecting eax
947 # in this case, this prefix would be the charater \`\(\'.
949 # Please note that we use the indirection prefix also for register
950 # displacement, e.g., \`4\(\%eax\)\' on x86.
951 v
;const char
*const
*;stap_register_indirection_prefixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_indirection_prefixes
)
953 # A NULL-terminated array of suffixes used to mark a register
954 # indirection on the architecture's assembly.
955 # For example, on x86 the register indirection is written as:
957 # \(\%eax\) ;; indirecting eax
959 # in this case, this prefix would be the charater \`\)\'.
961 # Please note that we use the indirection suffix also for register
962 # displacement, e.g., \`4\(\%eax\)\' on x86.
963 v
;const char
*const
*;stap_register_indirection_suffixes
;;;0;0;;0;pstring_list
(gdbarch-
>stap_register_indirection_suffixes
)
965 # Prefix(es) used to name a register using GDB's nomenclature.
967 # For example, on PPC a register is represented by a number in the assembly
968 # language (e.g., \`10\' is the 10th general-purpose register). However,
969 # inside GDB this same register has an \`r\' appended to its name, so the 10th
970 # register would be represented as \`r10\' internally.
971 v
;const char
*;stap_gdb_register_prefix
;;;0;0;;0;pstring
(gdbarch-
>stap_gdb_register_prefix
)
973 # Suffix used to name a register using GDB's nomenclature.
974 v
;const char
*;stap_gdb_register_suffix
;;;0;0;;0;pstring
(gdbarch-
>stap_gdb_register_suffix
)
976 # Check if S is a single operand.
978 # Single operands can be:
979 # \- Literal integers, e.g. \`\$10\' on x86
980 # \- Register access, e.g. \`\%eax\' on x86
981 # \- Register indirection, e.g. \`\(\%eax\)\' on x86
982 # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
984 # This function should check for these patterns on the string
985 # and return 1 if some were found, or zero otherwise. Please try to match
986 # as much info as you can from the string, i.e., if you have to match
987 # something like \`\(\%\', do not match just the \`\(\'.
988 M
;int
;stap_is_single_operand
;const char
*s
;s
990 # Function used to handle a "special case" in the parser.
992 # A "special case" is considered to be an unknown token, i.e., a token
993 # that the parser does not know how to parse. A good example of special
994 # case would be ARM's register displacement syntax:
996 # [R0, #4] ;; displacing R0 by 4
998 # Since the parser assumes that a register displacement is of the form:
1000 # <number> <indirection_prefix> <register_name> <indirection_suffix>
1002 # it means that it will not be able to recognize and parse this odd syntax.
1003 # Therefore, we should add a special case function that will handle this token.
1005 # This function should generate the proper expression form of the expression
1006 # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
1007 # and so on). It should also return 1 if the parsing was successful, or zero
1008 # if the token was not recognized as a special token (in this case, returning
1009 # zero means that the special parser is deferring the parsing to the generic
1010 # parser), and should advance the buffer pointer (p->arg).
1011 M
;int
;stap_parse_special_token
;struct stap_parse_info
*p
;p
1013 # DTrace related functions.
1015 # The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
1016 # NARG must be >= 0.
1017 M
;void
;dtrace_parse_probe_argument
;struct parser_state
*pstate
, int narg
;pstate
, narg
1019 # True if the given ADDR does not contain the instruction sequence
1020 # corresponding to a disabled DTrace is-enabled probe.
1021 M
;int
;dtrace_probe_is_enabled
;CORE_ADDR addr
;addr
1023 # Enable a DTrace is-enabled probe at ADDR.
1024 M
;void
;dtrace_enable_probe
;CORE_ADDR addr
;addr
1026 # Disable a DTrace is-enabled probe at ADDR.
1027 M
;void
;dtrace_disable_probe
;CORE_ADDR addr
;addr
1029 # True if the list of shared libraries is one and only for all
1030 # processes, as opposed to a list of shared libraries per inferior.
1031 # This usually means that all processes, although may or may not share
1032 # an address space, will see the same set of symbols at the same
1034 v
;int
;has_global_solist
;;;0;0;;0
1036 # On some targets, even though each inferior has its own private
1037 # address space, the debug interface takes care of making breakpoints
1038 # visible to all address spaces automatically. For such cases,
1039 # this property should be set to true.
1040 v
;int
;has_global_breakpoints
;;;0;0;;0
1042 # True if inferiors share an address space (e.g., uClinux).
1043 m
;int
;has_shared_address_space
;void
;;;default_has_shared_address_space
;;0
1045 # True if a fast tracepoint can be set at an address.
1046 m
;int
;fast_tracepoint_valid_at
;CORE_ADDR addr
, char
**msg
;addr
, msg
;;default_fast_tracepoint_valid_at
;;0
1048 # Guess register state based on tracepoint location. Used for tracepoints
1049 # where no registers have been collected, but there's only one location,
1050 # allowing us to guess the PC value, and perhaps some other registers.
1051 # On entry, regcache has all registers marked as unavailable.
1052 m
;void
;guess_tracepoint_registers
;struct regcache
*regcache
, CORE_ADDR addr
;regcache
, addr
;;default_guess_tracepoint_registers
;;0
1054 # Return the "auto" target charset.
1055 f
;const char
*;auto_charset
;void
;;default_auto_charset
;default_auto_charset
;;0
1056 # Return the "auto" target wide charset.
1057 f
;const char
*;auto_wide_charset
;void
;;default_auto_wide_charset
;default_auto_wide_charset
;;0
1059 # If non-empty, this is a file extension that will be opened in place
1060 # of the file extension reported by the shared library list.
1062 # This is most useful for toolchains that use a post-linker tool,
1063 # where the names of the files run on the target differ in extension
1064 # compared to the names of the files GDB should load for debug info.
1065 v
;const char
*;solib_symbols_extension
;;;;;;;pstring
(gdbarch-
>solib_symbols_extension
)
1067 # If true, the target OS has DOS-based file system semantics. That
1068 # is, absolute paths include a drive name, and the backslash is
1069 # considered a directory separator.
1070 v
;int
;has_dos_based_file_system
;;;0;0;;0
1072 # Generate bytecodes to collect the return address in a frame.
1073 # Since the bytecodes run on the target, possibly with GDB not even
1074 # connected, the full unwinding machinery is not available, and
1075 # typically this function will issue bytecodes for one or more likely
1076 # places that the return address may be found.
1077 m
;void
;gen_return_address
;struct agent_expr
*ax
, struct axs_value
*value
, CORE_ADDR scope
;ax
, value
, scope
;;default_gen_return_address
;;0
1079 # Implement the "info proc" command.
1080 M
;void
;info_proc
;const char
*args
, enum info_proc_what what
;args
, what
1082 # Implement the "info proc" command for core files. Noe that there
1083 # are two "info_proc"-like methods on gdbarch -- one for core files,
1084 # one for live targets.
1085 M
;void
;core_info_proc
;const char
*args
, enum info_proc_what what
;args
, what
1087 # Iterate over all objfiles in the order that makes the most sense
1088 # for the architecture to make global symbol searches.
1090 # CB is a callback function where OBJFILE is the objfile to be searched,
1091 # and CB_DATA a pointer to user-defined data (the same data that is passed
1092 # when calling this gdbarch method). The iteration stops if this function
1095 # CB_DATA is a pointer to some user-defined data to be passed to
1098 # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1099 # inspected when the symbol search was requested.
1100 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
1102 # Ravenscar arch-dependent ops.
1103 v
;struct ravenscar_arch_ops
*;ravenscar_ops
;;;NULL
;NULL
;;0;host_address_to_string
(gdbarch-
>ravenscar_ops
)
1105 # Return non-zero if the instruction at ADDR is a call; zero otherwise.
1106 m
;int
;insn_is_call
;CORE_ADDR addr
;addr
;;default_insn_is_call
;;0
1108 # Return non-zero if the instruction at ADDR is a return; zero otherwise.
1109 m
;int
;insn_is_ret
;CORE_ADDR addr
;addr
;;default_insn_is_ret
;;0
1111 # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
1112 m
;int
;insn_is_jump
;CORE_ADDR addr
;addr
;;default_insn_is_jump
;;0
1114 # Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1115 # Return 0 if *READPTR is already at the end of the buffer.
1116 # Return -1 if there is insufficient buffer for a whole entry.
1117 # Return 1 if an entry was read into *TYPEP and *VALP.
1118 M
;int
;auxv_parse
;gdb_byte
**readptr
, gdb_byte
*endptr
, CORE_ADDR
*typep
, CORE_ADDR
*valp
;readptr
, endptr
, typep
, valp
1120 # Print the description of a single auxv entry described by TYPE and VAL
1122 m
;void
;print_auxv_entry
;struct ui_file
*file, CORE_ADDR
type, CORE_ADDR val
;file, type, val
;;default_print_auxv_entry
;;0
1124 # Find the address range of the current inferior's vsyscall/vDSO, and
1125 # write it to *RANGE. If the vsyscall's length can't be determined, a
1126 # range with zero length is returned. Returns true if the vsyscall is
1127 # found, false otherwise.
1128 m
;int
;vsyscall_range
;struct mem_range
*range
;range
;;default_vsyscall_range
;;0
1130 # Allocate SIZE bytes of PROT protected page aligned memory in inferior.
1131 # PROT has GDB_MMAP_PROT_* bitmask format.
1132 # Throw an error if it is not possible. Returned address is always valid.
1133 f
;CORE_ADDR
;infcall_mmap
;CORE_ADDR size
, unsigned prot
;size
, prot
;;default_infcall_mmap
;;0
1135 # Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
1136 # Print a warning if it is not possible.
1137 f
;void
;infcall_munmap
;CORE_ADDR addr
, CORE_ADDR size
;addr
, size
;;default_infcall_munmap
;;0
1139 # Return string (caller has to use xfree for it) with options for GCC
1140 # to produce code for this target, typically "-m64", "-m32" or "-m31".
1141 # These options are put before CU's DW_AT_producer compilation options so that
1142 # they can override it. Method may also return NULL.
1143 m
;char
*;gcc_target_options
;void
;;;default_gcc_target_options
;;0
1145 # Return a regular expression that matches names used by this
1146 # architecture in GNU configury triplets. The result is statically
1147 # allocated and must not be freed. The default implementation simply
1148 # returns the BFD architecture name, which is correct in nearly every
1150 m
;const char
*;gnu_triplet_regexp
;void
;;;default_gnu_triplet_regexp
;;0
1152 # Return the size in 8-bit bytes of an addressable memory unit on this
1153 # architecture. This corresponds to the number of 8-bit bytes associated to
1154 # each address in memory.
1155 m
;int
;addressable_memory_unit_size
;void
;;;default_addressable_memory_unit_size
;;0
1157 # Functions for allowing a target to modify its disassembler options.
1158 v
;char
**;disassembler_options
;;;0;0;;0;pstring_ptr
(gdbarch-
>disassembler_options
)
1159 v
;const disasm_options_t
*;valid_disassembler_options
;;;0;0;;0;host_address_to_string
(gdbarch-
>valid_disassembler_options
)
1167 exec > new-gdbarch.log
1168 function_list |
while do_read
1171 ${class} ${returntype} ${function} ($formal)
1175 eval echo \"\ \ \ \
${r}=\
${${r}}\"
1177 if class_is_predicate_p
&& fallback_default_p
1179 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
1183 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
1185 echo "Error: postdefault is useless when invalid_p=0" 1>&2
1189 if class_is_multiarch_p
1191 if class_is_predicate_p
; then :
1192 elif test "x${predefault}" = "x"
1194 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
1203 compare_new gdbarch.log
1209 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
1212 /* Dynamic architecture support for GDB, the GNU debugger.
1214 Copyright (C) 1998-2017 Free Software Foundation, Inc.
1216 This file is part of GDB.
1218 This program is free software; you can redistribute it and/or modify
1219 it under the terms of the GNU General Public License as published by
1220 the Free Software Foundation; either version 3 of the License, or
1221 (at your option) any later version.
1223 This program is distributed in the hope that it will be useful,
1224 but WITHOUT ANY WARRANTY; without even the implied warranty of
1225 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1226 GNU General Public License for more details.
1228 You should have received a copy of the GNU General Public License
1229 along with this program. If not, see <http://www.gnu.org/licenses/>. */
1231 /* This file was created with the aid of \`\`gdbarch.sh''.
1233 The Bourne shell script \`\`gdbarch.sh'' creates the files
1234 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
1235 against the existing \`\`gdbarch.[hc]''. Any differences found
1238 If editing this file, please also run gdbarch.sh and merge any
1239 changes into that script. Conversely, when making sweeping changes
1240 to this file, modifying gdbarch.sh and using its output may prove
1250 exec > new-gdbarch.h
1258 #include "dis-asm.h"
1265 struct minimal_symbol;
1269 struct disassemble_info;
1272 struct bp_target_info;
1275 struct displaced_step_closure;
1279 struct stap_parse_info;
1280 struct parser_state;
1281 struct ravenscar_arch_ops;
1283 struct syscalls_info;
1287 #include "regcache.h"
1289 /* The architecture associated with the inferior through the
1290 connection to the target.
1292 The architecture vector provides some information that is really a
1293 property of the inferior, accessed through a particular target:
1294 ptrace operations; the layout of certain RSP packets; the solib_ops
1295 vector; etc. To differentiate architecture accesses to
1296 per-inferior/target properties from
1297 per-thread/per-frame/per-objfile properties, accesses to
1298 per-inferior/target properties should be made through this
1301 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
1302 extern struct gdbarch *target_gdbarch (void);
1304 /* Callback type for the 'iterate_over_objfiles_in_search_order'
1307 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
1308 (struct objfile *objfile, void *cb_data);
1310 /* Callback type for regset section iterators. The callback usually
1311 invokes the REGSET's supply or collect method, to which it must
1312 pass a buffer with at least the given SIZE. SECT_NAME is a BFD
1313 section name, and HUMAN_NAME is used for diagnostic messages.
1314 CB_DATA should have been passed unchanged through the iterator. */
1316 typedef void (iterate_over_regset_sections_cb)
1317 (const char *sect_name, int size, const struct regset *regset,
1318 const char *human_name, void *cb_data);
1321 # function typedef's
1324 printf "/* The following are pre-initialized by GDBARCH. */\n"
1325 function_list |
while do_read
1330 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1331 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
1335 # function typedef's
1338 printf "/* The following are initialized by the target dependent code. */\n"
1339 function_list |
while do_read
1341 if [ -n "${comment}" ]
1343 echo "${comment}" |
sed \
1349 if class_is_predicate_p
1352 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1354 if class_is_variable_p
1357 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1358 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1360 if class_is_function_p
1363 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1365 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1366 elif class_is_multiarch_p
1368 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1370 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1372 if [ "x${formal}" = "xvoid" ]
1374 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1376 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1378 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1385 /* Definition for an unknown syscall, used basically in error-cases. */
1386 #define UNKNOWN_SYSCALL (-1)
1388 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1391 /* Mechanism for co-ordinating the selection of a specific
1394 GDB targets (*-tdep.c) can register an interest in a specific
1395 architecture. Other GDB components can register a need to maintain
1396 per-architecture data.
1398 The mechanisms below ensures that there is only a loose connection
1399 between the set-architecture command and the various GDB
1400 components. Each component can independently register their need
1401 to maintain architecture specific data with gdbarch.
1405 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1408 The more traditional mega-struct containing architecture specific
1409 data for all the various GDB components was also considered. Since
1410 GDB is built from a variable number of (fairly independent)
1411 components it was determined that the global aproach was not
1415 /* Register a new architectural family with GDB.
1417 Register support for the specified ARCHITECTURE with GDB. When
1418 gdbarch determines that the specified architecture has been
1419 selected, the corresponding INIT function is called.
1423 The INIT function takes two parameters: INFO which contains the
1424 information available to gdbarch about the (possibly new)
1425 architecture; ARCHES which is a list of the previously created
1426 \`\`struct gdbarch'' for this architecture.
1428 The INFO parameter is, as far as possible, be pre-initialized with
1429 information obtained from INFO.ABFD or the global defaults.
1431 The ARCHES parameter is a linked list (sorted most recently used)
1432 of all the previously created architures for this architecture
1433 family. The (possibly NULL) ARCHES->gdbarch can used to access
1434 values from the previously selected architecture for this
1435 architecture family.
1437 The INIT function shall return any of: NULL - indicating that it
1438 doesn't recognize the selected architecture; an existing \`\`struct
1439 gdbarch'' from the ARCHES list - indicating that the new
1440 architecture is just a synonym for an earlier architecture (see
1441 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1442 - that describes the selected architecture (see gdbarch_alloc()).
1444 The DUMP_TDEP function shall print out all target specific values.
1445 Care should be taken to ensure that the function works in both the
1446 multi-arch and non- multi-arch cases. */
1450 struct gdbarch *gdbarch;
1451 struct gdbarch_list *next;
1456 /* Use default: NULL (ZERO). */
1457 const struct bfd_arch_info *bfd_arch_info;
1459 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1460 enum bfd_endian byte_order;
1462 enum bfd_endian byte_order_for_code;
1464 /* Use default: NULL (ZERO). */
1467 /* Use default: NULL (ZERO). */
1470 /* Architecture-specific information. The generic form for targets
1471 that have extra requirements. */
1472 struct gdbarch_tdep_info *tdep_info;
1474 /* Architecture-specific target description data. Numerous targets
1475 need only this, so give them an easy way to hold it. */
1476 struct tdesc_arch_data *tdesc_data;
1478 /* SPU file system ID. This is a single integer, so using the
1479 generic form would only complicate code. Other targets may
1480 reuse this member if suitable. */
1484 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1485 enum gdb_osabi osabi;
1487 /* Use default: NULL (ZERO). */
1488 const struct target_desc *target_desc;
1491 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1492 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1494 /* DEPRECATED - use gdbarch_register() */
1495 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1497 extern void gdbarch_register (enum bfd_architecture architecture,
1498 gdbarch_init_ftype *,
1499 gdbarch_dump_tdep_ftype *);
1502 /* Return a freshly allocated, NULL terminated, array of the valid
1503 architecture names. Since architectures are registered during the
1504 _initialize phase this function only returns useful information
1505 once initialization has been completed. */
1507 extern const char **gdbarch_printable_names (void);
1510 /* Helper function. Search the list of ARCHES for a GDBARCH that
1511 matches the information provided by INFO. */
1513 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1516 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1517 basic initialization using values obtained from the INFO and TDEP
1518 parameters. set_gdbarch_*() functions are called to complete the
1519 initialization of the object. */
1521 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1524 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1525 It is assumed that the caller freeds the \`\`struct
1528 extern void gdbarch_free (struct gdbarch *);
1531 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1532 obstack. The memory is freed when the corresponding architecture
1535 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1536 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1537 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1539 /* Duplicate STRING, returning an equivalent string that's allocated on the
1540 obstack associated with GDBARCH. The string is freed when the corresponding
1541 architecture is also freed. */
1543 extern char *gdbarch_obstack_strdup (struct gdbarch *arch, const char *string);
1545 /* Helper function. Force an update of the current architecture.
1547 The actual architecture selected is determined by INFO, \`\`(gdb) set
1548 architecture'' et.al., the existing architecture and BFD's default
1549 architecture. INFO should be initialized to zero and then selected
1550 fields should be updated.
1552 Returns non-zero if the update succeeds. */
1554 extern int gdbarch_update_p (struct gdbarch_info info);
1557 /* Helper function. Find an architecture matching info.
1559 INFO should be initialized using gdbarch_info_init, relevant fields
1560 set, and then finished using gdbarch_info_fill.
1562 Returns the corresponding architecture, or NULL if no matching
1563 architecture was found. */
1565 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1568 /* Helper function. Set the target gdbarch to "gdbarch". */
1570 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1573 /* Register per-architecture data-pointer.
1575 Reserve space for a per-architecture data-pointer. An identifier
1576 for the reserved data-pointer is returned. That identifer should
1577 be saved in a local static variable.
1579 Memory for the per-architecture data shall be allocated using
1580 gdbarch_obstack_zalloc. That memory will be deleted when the
1581 corresponding architecture object is deleted.
1583 When a previously created architecture is re-selected, the
1584 per-architecture data-pointer for that previous architecture is
1585 restored. INIT() is not re-called.
1587 Multiple registrarants for any architecture are allowed (and
1588 strongly encouraged). */
1590 struct gdbarch_data;
1592 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1593 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1594 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1595 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1596 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1597 struct gdbarch_data *data,
1600 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1603 /* Set the dynamic target-system-dependent parameters (architecture,
1604 byte-order, ...) using information found in the BFD. */
1606 extern void set_gdbarch_from_file (bfd *);
1609 /* Initialize the current architecture to the "first" one we find on
1612 extern void initialize_current_architecture (void);
1614 /* gdbarch trace variable */
1615 extern unsigned int gdbarch_debug;
1617 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1622 #../move-if-change new-gdbarch.h gdbarch.h
1623 compare_new gdbarch.h
1630 exec > new-gdbarch.c
1635 #include "arch-utils.h"
1638 #include "inferior.h"
1641 #include "floatformat.h"
1642 #include "reggroups.h"
1644 #include "gdb_obstack.h"
1645 #include "observer.h"
1646 #include "regcache.h"
1647 #include "objfiles.h"
1650 /* Static function declarations */
1652 static void alloc_gdbarch_data (struct gdbarch *);
1654 /* Non-zero if we want to trace architecture code. */
1656 #ifndef GDBARCH_DEBUG
1657 #define GDBARCH_DEBUG 0
1659 unsigned int gdbarch_debug = GDBARCH_DEBUG;
1661 show_gdbarch_debug (struct ui_file *file, int from_tty,
1662 struct cmd_list_element *c, const char *value)
1664 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1668 pformat (const struct floatformat **format)
1673 /* Just print out one of them - this is only for diagnostics. */
1674 return format[0]->name;
1678 pstring (const char *string)
1686 pstring_ptr (char **string)
1688 if (string == NULL || *string == NULL)
1693 /* Helper function to print a list of strings, represented as "const
1694 char *const *". The list is printed comma-separated. */
1697 pstring_list (const char *const *list)
1699 static char ret[100];
1700 const char *const *p;
1707 for (p = list; *p != NULL && offset < sizeof (ret); ++p)
1709 size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
1715 gdb_assert (offset - 2 < sizeof (ret));
1716 ret[offset - 2] = '\0';
1724 # gdbarch open the gdbarch object
1726 printf "/* Maintain the struct gdbarch object. */\n"
1728 printf "struct gdbarch\n"
1730 printf " /* Has this architecture been fully initialized? */\n"
1731 printf " int initialized_p;\n"
1733 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1734 printf " struct obstack *obstack;\n"
1736 printf " /* basic architectural information. */\n"
1737 function_list |
while do_read
1741 printf " ${returntype} ${function};\n"
1745 printf " /* target specific vector. */\n"
1746 printf " struct gdbarch_tdep *tdep;\n"
1747 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1749 printf " /* per-architecture data-pointers. */\n"
1750 printf " unsigned nr_data;\n"
1751 printf " void **data;\n"
1754 /* Multi-arch values.
1756 When extending this structure you must:
1758 Add the field below.
1760 Declare set/get functions and define the corresponding
1763 gdbarch_alloc(): If zero/NULL is not a suitable default,
1764 initialize the new field.
1766 verify_gdbarch(): Confirm that the target updated the field
1769 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1772 get_gdbarch(): Implement the set/get functions (probably using
1773 the macro's as shortcuts).
1778 function_list |
while do_read
1780 if class_is_variable_p
1782 printf " ${returntype} ${function};\n"
1783 elif class_is_function_p
1785 printf " gdbarch_${function}_ftype *${function};\n"
1790 # Create a new gdbarch struct
1793 /* Create a new \`\`struct gdbarch'' based on information provided by
1794 \`\`struct gdbarch_info''. */
1799 gdbarch_alloc (const struct gdbarch_info *info,
1800 struct gdbarch_tdep *tdep)
1802 struct gdbarch *gdbarch;
1804 /* Create an obstack for allocating all the per-architecture memory,
1805 then use that to allocate the architecture vector. */
1806 struct obstack *obstack = XNEW (struct obstack);
1807 obstack_init (obstack);
1808 gdbarch = XOBNEW (obstack, struct gdbarch);
1809 memset (gdbarch, 0, sizeof (*gdbarch));
1810 gdbarch->obstack = obstack;
1812 alloc_gdbarch_data (gdbarch);
1814 gdbarch->tdep = tdep;
1817 function_list |
while do_read
1821 printf " gdbarch->${function} = info->${function};\n"
1825 printf " /* Force the explicit initialization of these. */\n"
1826 function_list |
while do_read
1828 if class_is_function_p || class_is_variable_p
1830 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1832 printf " gdbarch->${function} = ${predefault};\n"
1837 /* gdbarch_alloc() */
1843 # Free a gdbarch struct.
1847 /* Allocate extra space using the per-architecture obstack. */
1850 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1852 void *data = obstack_alloc (arch->obstack, size);
1854 memset (data, 0, size);
1858 /* See gdbarch.h. */
1861 gdbarch_obstack_strdup (struct gdbarch *arch, const char *string)
1863 return obstack_strdup (arch->obstack, string);
1867 /* Free a gdbarch struct. This should never happen in normal
1868 operation --- once you've created a gdbarch, you keep it around.
1869 However, if an architecture's init function encounters an error
1870 building the structure, it may need to clean up a partially
1871 constructed gdbarch. */
1874 gdbarch_free (struct gdbarch *arch)
1876 struct obstack *obstack;
1878 gdb_assert (arch != NULL);
1879 gdb_assert (!arch->initialized_p);
1880 obstack = arch->obstack;
1881 obstack_free (obstack, 0); /* Includes the ARCH. */
1886 # verify a new architecture
1890 /* Ensure that all values in a GDBARCH are reasonable. */
1893 verify_gdbarch (struct gdbarch *gdbarch)
1898 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1899 log.puts ("\n\tbyte-order");
1900 if (gdbarch->bfd_arch_info == NULL)
1901 log.puts ("\n\tbfd_arch_info");
1902 /* Check those that need to be defined for the given multi-arch level. */
1904 function_list |
while do_read
1906 if class_is_function_p || class_is_variable_p
1908 if [ "x${invalid_p}" = "x0" ]
1910 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1911 elif class_is_predicate_p
1913 printf " /* Skip verify of ${function}, has predicate. */\n"
1914 # FIXME: See do_read for potential simplification
1915 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1917 printf " if (${invalid_p})\n"
1918 printf " gdbarch->${function} = ${postdefault};\n"
1919 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1921 printf " if (gdbarch->${function} == ${predefault})\n"
1922 printf " gdbarch->${function} = ${postdefault};\n"
1923 elif [ -n "${postdefault}" ]
1925 printf " if (gdbarch->${function} == 0)\n"
1926 printf " gdbarch->${function} = ${postdefault};\n"
1927 elif [ -n "${invalid_p}" ]
1929 printf " if (${invalid_p})\n"
1930 printf " log.puts (\"\\\\n\\\\t${function}\");\n"
1931 elif [ -n "${predefault}" ]
1933 printf " if (gdbarch->${function} == ${predefault})\n"
1934 printf " log.puts (\"\\\\n\\\\t${function}\");\n"
1940 internal_error (__FILE__, __LINE__,
1941 _("verify_gdbarch: the following are invalid ...%s"),
1946 # dump the structure
1950 /* Print out the details of the current architecture. */
1953 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1955 const char *gdb_nm_file = "<not-defined>";
1957 #if defined (GDB_NM_FILE)
1958 gdb_nm_file = GDB_NM_FILE;
1960 fprintf_unfiltered (file,
1961 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1964 function_list |
sort '-t;' -k 3 |
while do_read
1966 # First the predicate
1967 if class_is_predicate_p
1969 printf " fprintf_unfiltered (file,\n"
1970 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1971 printf " gdbarch_${function}_p (gdbarch));\n"
1973 # Print the corresponding value.
1974 if class_is_function_p
1976 printf " fprintf_unfiltered (file,\n"
1977 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1978 printf " host_address_to_string (gdbarch->${function}));\n"
1981 case "${print}:${returntype}" in
1984 print
="core_addr_to_string_nz (gdbarch->${function})"
1988 print
="plongest (gdbarch->${function})"
1994 printf " fprintf_unfiltered (file,\n"
1995 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1996 printf " ${print});\n"
2000 if (gdbarch->dump_tdep != NULL)
2001 gdbarch->dump_tdep (gdbarch, file);
2009 struct gdbarch_tdep *
2010 gdbarch_tdep (struct gdbarch *gdbarch)
2012 if (gdbarch_debug >= 2)
2013 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
2014 return gdbarch->tdep;
2018 function_list |
while do_read
2020 if class_is_predicate_p
2024 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
2026 printf " gdb_assert (gdbarch != NULL);\n"
2027 printf " return ${predicate};\n"
2030 if class_is_function_p
2033 printf "${returntype}\n"
2034 if [ "x${formal}" = "xvoid" ]
2036 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2038 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
2041 printf " gdb_assert (gdbarch != NULL);\n"
2042 printf " gdb_assert (gdbarch->${function} != NULL);\n"
2043 if class_is_predicate_p
&& test -n "${predefault}"
2045 # Allow a call to a function with a predicate.
2046 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
2048 printf " if (gdbarch_debug >= 2)\n"
2049 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2050 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
2052 if class_is_multiarch_p
2059 if class_is_multiarch_p
2061 params
="gdbarch, ${actual}"
2066 if [ "x${returntype}" = "xvoid" ]
2068 printf " gdbarch->${function} (${params});\n"
2070 printf " return gdbarch->${function} (${params});\n"
2075 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2076 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
2078 printf " gdbarch->${function} = ${function};\n"
2080 elif class_is_variable_p
2083 printf "${returntype}\n"
2084 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2086 printf " gdb_assert (gdbarch != NULL);\n"
2087 if [ "x${invalid_p}" = "x0" ]
2089 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
2090 elif [ -n "${invalid_p}" ]
2092 printf " /* Check variable is valid. */\n"
2093 printf " gdb_assert (!(${invalid_p}));\n"
2094 elif [ -n "${predefault}" ]
2096 printf " /* Check variable changed from pre-default. */\n"
2097 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
2099 printf " if (gdbarch_debug >= 2)\n"
2100 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2101 printf " return gdbarch->${function};\n"
2105 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
2106 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
2108 printf " gdbarch->${function} = ${function};\n"
2110 elif class_is_info_p
2113 printf "${returntype}\n"
2114 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
2116 printf " gdb_assert (gdbarch != NULL);\n"
2117 printf " if (gdbarch_debug >= 2)\n"
2118 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
2119 printf " return gdbarch->${function};\n"
2124 # All the trailing guff
2128 /* Keep a registry of per-architecture data-pointers required by GDB
2135 gdbarch_data_pre_init_ftype *pre_init;
2136 gdbarch_data_post_init_ftype *post_init;
2139 struct gdbarch_data_registration
2141 struct gdbarch_data *data;
2142 struct gdbarch_data_registration *next;
2145 struct gdbarch_data_registry
2148 struct gdbarch_data_registration *registrations;
2151 struct gdbarch_data_registry gdbarch_data_registry =
2156 static struct gdbarch_data *
2157 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
2158 gdbarch_data_post_init_ftype *post_init)
2160 struct gdbarch_data_registration **curr;
2162 /* Append the new registration. */
2163 for (curr = &gdbarch_data_registry.registrations;
2165 curr = &(*curr)->next);
2166 (*curr) = XNEW (struct gdbarch_data_registration);
2167 (*curr)->next = NULL;
2168 (*curr)->data = XNEW (struct gdbarch_data);
2169 (*curr)->data->index = gdbarch_data_registry.nr++;
2170 (*curr)->data->pre_init = pre_init;
2171 (*curr)->data->post_init = post_init;
2172 (*curr)->data->init_p = 1;
2173 return (*curr)->data;
2176 struct gdbarch_data *
2177 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
2179 return gdbarch_data_register (pre_init, NULL);
2182 struct gdbarch_data *
2183 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
2185 return gdbarch_data_register (NULL, post_init);
2188 /* Create/delete the gdbarch data vector. */
2191 alloc_gdbarch_data (struct gdbarch *gdbarch)
2193 gdb_assert (gdbarch->data == NULL);
2194 gdbarch->nr_data = gdbarch_data_registry.nr;
2195 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
2198 /* Initialize the current value of the specified per-architecture
2202 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
2203 struct gdbarch_data *data,
2206 gdb_assert (data->index < gdbarch->nr_data);
2207 gdb_assert (gdbarch->data[data->index] == NULL);
2208 gdb_assert (data->pre_init == NULL);
2209 gdbarch->data[data->index] = pointer;
2212 /* Return the current value of the specified per-architecture
2216 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
2218 gdb_assert (data->index < gdbarch->nr_data);
2219 if (gdbarch->data[data->index] == NULL)
2221 /* The data-pointer isn't initialized, call init() to get a
2223 if (data->pre_init != NULL)
2224 /* Mid architecture creation: pass just the obstack, and not
2225 the entire architecture, as that way it isn't possible for
2226 pre-init code to refer to undefined architecture
2228 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
2229 else if (gdbarch->initialized_p
2230 && data->post_init != NULL)
2231 /* Post architecture creation: pass the entire architecture
2232 (as all fields are valid), but be careful to also detect
2233 recursive references. */
2235 gdb_assert (data->init_p);
2237 gdbarch->data[data->index] = data->post_init (gdbarch);
2241 /* The architecture initialization hasn't completed - punt -
2242 hope that the caller knows what they are doing. Once
2243 deprecated_set_gdbarch_data has been initialized, this can be
2244 changed to an internal error. */
2246 gdb_assert (gdbarch->data[data->index] != NULL);
2248 return gdbarch->data[data->index];
2252 /* Keep a registry of the architectures known by GDB. */
2254 struct gdbarch_registration
2256 enum bfd_architecture bfd_architecture;
2257 gdbarch_init_ftype *init;
2258 gdbarch_dump_tdep_ftype *dump_tdep;
2259 struct gdbarch_list *arches;
2260 struct gdbarch_registration *next;
2263 static struct gdbarch_registration *gdbarch_registry = NULL;
2266 append_name (const char ***buf, int *nr, const char *name)
2268 *buf = XRESIZEVEC (const char *, *buf, *nr + 1);
2274 gdbarch_printable_names (void)
2276 /* Accumulate a list of names based on the registed list of
2279 const char **arches = NULL;
2280 struct gdbarch_registration *rego;
2282 for (rego = gdbarch_registry;
2286 const struct bfd_arch_info *ap;
2287 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2289 internal_error (__FILE__, __LINE__,
2290 _("gdbarch_architecture_names: multi-arch unknown"));
2293 append_name (&arches, &nr_arches, ap->printable_name);
2298 append_name (&arches, &nr_arches, NULL);
2304 gdbarch_register (enum bfd_architecture bfd_architecture,
2305 gdbarch_init_ftype *init,
2306 gdbarch_dump_tdep_ftype *dump_tdep)
2308 struct gdbarch_registration **curr;
2309 const struct bfd_arch_info *bfd_arch_info;
2311 /* Check that BFD recognizes this architecture */
2312 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2313 if (bfd_arch_info == NULL)
2315 internal_error (__FILE__, __LINE__,
2316 _("gdbarch: Attempt to register "
2317 "unknown architecture (%d)"),
2320 /* Check that we haven't seen this architecture before. */
2321 for (curr = &gdbarch_registry;
2323 curr = &(*curr)->next)
2325 if (bfd_architecture == (*curr)->bfd_architecture)
2326 internal_error (__FILE__, __LINE__,
2327 _("gdbarch: Duplicate registration "
2328 "of architecture (%s)"),
2329 bfd_arch_info->printable_name);
2333 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
2334 bfd_arch_info->printable_name,
2335 host_address_to_string (init));
2337 (*curr) = XNEW (struct gdbarch_registration);
2338 (*curr)->bfd_architecture = bfd_architecture;
2339 (*curr)->init = init;
2340 (*curr)->dump_tdep = dump_tdep;
2341 (*curr)->arches = NULL;
2342 (*curr)->next = NULL;
2346 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2347 gdbarch_init_ftype *init)
2349 gdbarch_register (bfd_architecture, init, NULL);
2353 /* Look for an architecture using gdbarch_info. */
2355 struct gdbarch_list *
2356 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2357 const struct gdbarch_info *info)
2359 for (; arches != NULL; arches = arches->next)
2361 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2363 if (info->byte_order != arches->gdbarch->byte_order)
2365 if (info->osabi != arches->gdbarch->osabi)
2367 if (info->target_desc != arches->gdbarch->target_desc)
2375 /* Find an architecture that matches the specified INFO. Create a new
2376 architecture if needed. Return that new architecture. */
2379 gdbarch_find_by_info (struct gdbarch_info info)
2381 struct gdbarch *new_gdbarch;
2382 struct gdbarch_registration *rego;
2384 /* Fill in missing parts of the INFO struct using a number of
2385 sources: "set ..."; INFOabfd supplied; and the global
2387 gdbarch_info_fill (&info);
2389 /* Must have found some sort of architecture. */
2390 gdb_assert (info.bfd_arch_info != NULL);
2394 fprintf_unfiltered (gdb_stdlog,
2395 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2396 (info.bfd_arch_info != NULL
2397 ? info.bfd_arch_info->printable_name
2399 fprintf_unfiltered (gdb_stdlog,
2400 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2402 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2403 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2405 fprintf_unfiltered (gdb_stdlog,
2406 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2407 info.osabi, gdbarch_osabi_name (info.osabi));
2408 fprintf_unfiltered (gdb_stdlog,
2409 "gdbarch_find_by_info: info.abfd %s\n",
2410 host_address_to_string (info.abfd));
2411 fprintf_unfiltered (gdb_stdlog,
2412 "gdbarch_find_by_info: info.tdep_info %s\n",
2413 host_address_to_string (info.tdep_info));
2416 /* Find the tdep code that knows about this architecture. */
2417 for (rego = gdbarch_registry;
2420 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2425 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2426 "No matching architecture\n");
2430 /* Ask the tdep code for an architecture that matches "info". */
2431 new_gdbarch = rego->init (info, rego->arches);
2433 /* Did the tdep code like it? No. Reject the change and revert to
2434 the old architecture. */
2435 if (new_gdbarch == NULL)
2438 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2439 "Target rejected architecture\n");
2443 /* Is this a pre-existing architecture (as determined by already
2444 being initialized)? Move it to the front of the architecture
2445 list (keeping the list sorted Most Recently Used). */
2446 if (new_gdbarch->initialized_p)
2448 struct gdbarch_list **list;
2449 struct gdbarch_list *self;
2451 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2452 "Previous architecture %s (%s) selected\n",
2453 host_address_to_string (new_gdbarch),
2454 new_gdbarch->bfd_arch_info->printable_name);
2455 /* Find the existing arch in the list. */
2456 for (list = ®o->arches;
2457 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2458 list = &(*list)->next);
2459 /* It had better be in the list of architectures. */
2460 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2463 (*list) = self->next;
2464 /* Insert SELF at the front. */
2465 self->next = rego->arches;
2466 rego->arches = self;
2471 /* It's a new architecture. */
2473 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2474 "New architecture %s (%s) selected\n",
2475 host_address_to_string (new_gdbarch),
2476 new_gdbarch->bfd_arch_info->printable_name);
2478 /* Insert the new architecture into the front of the architecture
2479 list (keep the list sorted Most Recently Used). */
2481 struct gdbarch_list *self = XNEW (struct gdbarch_list);
2482 self->next = rego->arches;
2483 self->gdbarch = new_gdbarch;
2484 rego->arches = self;
2487 /* Check that the newly installed architecture is valid. Plug in
2488 any post init values. */
2489 new_gdbarch->dump_tdep = rego->dump_tdep;
2490 verify_gdbarch (new_gdbarch);
2491 new_gdbarch->initialized_p = 1;
2494 gdbarch_dump (new_gdbarch, gdb_stdlog);
2499 /* Make the specified architecture current. */
2502 set_target_gdbarch (struct gdbarch *new_gdbarch)
2504 gdb_assert (new_gdbarch != NULL);
2505 gdb_assert (new_gdbarch->initialized_p);
2506 current_inferior ()->gdbarch = new_gdbarch;
2507 observer_notify_architecture_changed (new_gdbarch);
2508 registers_changed ();
2511 /* Return the current inferior's arch. */
2514 target_gdbarch (void)
2516 return current_inferior ()->gdbarch;
2520 _initialize_gdbarch (void)
2522 add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2523 Set architecture debugging."), _("\\
2524 Show architecture debugging."), _("\\
2525 When non-zero, architecture debugging is enabled."),
2528 &setdebuglist, &showdebuglist);
2534 #../move-if-change new-gdbarch.c gdbarch.c
2535 compare_new gdbarch.c