3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998-2014 Free Software Foundation, Inc.
7 # This file is part of GDB.
9 # This program is free software; you can redistribute it and/or modify
10 # it under the terms of the GNU General Public License as published by
11 # the Free Software Foundation; either version 3 of the License, or
12 # (at your option) any later version.
14 # This program is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program. If not, see <http://www.gnu.org/licenses/>.
22 # Make certain that the script is not running in an internationalized
25 LC_ALL=C ; export LC_ALL
33 echo "${file} missing? cp new-${file} ${file}" 1>&2
34 elif diff -u ${file} new-${file}
36 echo "${file} unchanged" 1>&2
38 echo "${file} has changed? cp new-${file} ${file}" 1>&2
43 # Format of the input table
44 read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
50 # On some SH's, 'read' trims leading and trailing whitespace by
51 # default (e.g., bash), while on others (e.g., dash), it doesn't.
52 # Set IFS to empty to disable the trimming everywhere.
53 while IFS='' read line
55 if test "${line}" = ""
58 elif test "${line}" = "#" -a "${comment}" = ""
61 elif expr "${line}" : "#" > /dev/null
67 # The semantics of IFS varies between different SH's. Some
68 # treat ``::' as three fields while some treat it as just too.
69 # Work around this by eliminating ``::'' ....
70 line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
72 OFS="${IFS}" ; IFS="[:]"
73 eval read ${read} <<EOF
78 if test -n "${garbage_at_eol}"
80 echo "Garbage at end-of-line in ${line}" 1>&2
85 # .... and then going back through each field and strip out those
86 # that ended up with just that space character.
89 if eval test \"\${${r}}\" = \"\ \"
96 m ) staticdefault="${predefault}" ;;
97 M ) staticdefault="0" ;;
98 * ) test "${staticdefault}" || staticdefault=0 ;;
103 case "${invalid_p}" in
105 if test -n "${predefault}"
107 #invalid_p="gdbarch->${function} == ${predefault}"
108 predicate="gdbarch->${function} != ${predefault}"
109 elif class_is_variable_p
111 predicate="gdbarch->${function} != 0"
112 elif class_is_function_p
114 predicate="gdbarch->${function} != NULL"
118 echo "Predicate function ${function} with invalid_p." 1>&2
125 # PREDEFAULT is a valid fallback definition of MEMBER when
126 # multi-arch is not enabled. This ensures that the
127 # default value, when multi-arch is the same as the
128 # default value when not multi-arch. POSTDEFAULT is
129 # always a valid definition of MEMBER as this again
130 # ensures consistency.
132 if [ -n "${postdefault}" ]
134 fallbackdefault="${postdefault}"
135 elif [ -n "${predefault}" ]
137 fallbackdefault="${predefault}"
142 #NOT YET: See gdbarch.log for basic verification of
157 fallback_default_p ()
159 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
160 || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
163 class_is_variable_p ()
171 class_is_function_p ()
174 *f* | *F* | *m* | *M* ) true ;;
179 class_is_multiarch_p ()
187 class_is_predicate_p ()
190 *F* | *V* | *M* ) true ;;
204 # dump out/verify the doco
214 # F -> function + predicate
215 # hiding a function + predicate to test function validity
218 # V -> variable + predicate
219 # hiding a variable + predicate to test variables validity
221 # hiding something from the ``struct info'' object
222 # m -> multi-arch function
223 # hiding a multi-arch function (parameterised with the architecture)
224 # M -> multi-arch function + predicate
225 # hiding a multi-arch function + predicate to test function validity
229 # For functions, the return type; for variables, the data type
233 # For functions, the member function name; for variables, the
234 # variable name. Member function names are always prefixed with
235 # ``gdbarch_'' for name-space purity.
239 # The formal argument list. It is assumed that the formal
240 # argument list includes the actual name of each list element.
241 # A function with no arguments shall have ``void'' as the
242 # formal argument list.
246 # The list of actual arguments. The arguments specified shall
247 # match the FORMAL list given above. Functions with out
248 # arguments leave this blank.
252 # To help with the GDB startup a static gdbarch object is
253 # created. STATICDEFAULT is the value to insert into that
254 # static gdbarch object. Since this a static object only
255 # simple expressions can be used.
257 # If STATICDEFAULT is empty, zero is used.
261 # An initial value to assign to MEMBER of the freshly
262 # malloc()ed gdbarch object. After initialization, the
263 # freshly malloc()ed object is passed to the target
264 # architecture code for further updates.
266 # If PREDEFAULT is empty, zero is used.
268 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
269 # INVALID_P are specified, PREDEFAULT will be used as the
270 # default for the non- multi-arch target.
272 # A zero PREDEFAULT function will force the fallback to call
275 # Variable declarations can refer to ``gdbarch'' which will
276 # contain the current architecture. Care should be taken.
280 # A value to assign to MEMBER of the new gdbarch object should
281 # the target architecture code fail to change the PREDEFAULT
284 # If POSTDEFAULT is empty, no post update is performed.
286 # If both INVALID_P and POSTDEFAULT are non-empty then
287 # INVALID_P will be used to determine if MEMBER should be
288 # changed to POSTDEFAULT.
290 # If a non-empty POSTDEFAULT and a zero INVALID_P are
291 # specified, POSTDEFAULT will be used as the default for the
292 # non- multi-arch target (regardless of the value of
295 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
297 # Variable declarations can refer to ``gdbarch'' which
298 # will contain the current architecture. Care should be
303 # A predicate equation that validates MEMBER. Non-zero is
304 # returned if the code creating the new architecture failed to
305 # initialize MEMBER or the initialized the member is invalid.
306 # If POSTDEFAULT is non-empty then MEMBER will be updated to
307 # that value. If POSTDEFAULT is empty then internal_error()
310 # If INVALID_P is empty, a check that MEMBER is no longer
311 # equal to PREDEFAULT is used.
313 # The expression ``0'' disables the INVALID_P check making
314 # PREDEFAULT a legitimate value.
316 # See also PREDEFAULT and POSTDEFAULT.
320 # An optional expression that convers MEMBER to a value
321 # suitable for formatting using %s.
323 # If PRINT is empty, core_addr_to_string_nz (for CORE_ADDR)
324 # or plongest (anything else) is used.
326 garbage_at_eol ) : ;;
328 # Catches stray fields.
331 echo "Bad field ${field}"
339 # See below (DOCO) for description of each field
341 i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name
343 i:enum bfd_endian:byte_order:::BFD_ENDIAN_BIG
344 i:enum bfd_endian:byte_order_for_code:::BFD_ENDIAN_BIG
346 i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
348 i:const struct target_desc *:target_desc:::::::host_address_to_string (gdbarch->target_desc)
350 # The bit byte-order has to do just with numbering of bits in debugging symbols
351 # and such. Conceptually, it's quite separate from byte/word byte order.
352 v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
354 # Number of bits in a char or unsigned char for the target machine.
355 # Just like CHAR_BIT in <limits.h> but describes the target machine.
356 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
358 # Number of bits in a short or unsigned short for the target machine.
359 v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
360 # Number of bits in an int or unsigned int for the target machine.
361 v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
362 # Number of bits in a long or unsigned long for the target machine.
363 v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
364 # Number of bits in a long long or unsigned long long for the target
366 v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
367 # Alignment of a long long or unsigned long long for the target
369 v:int:long_long_align_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
371 # The ABI default bit-size and format for "half", "float", "double", and
372 # "long double". These bit/format pairs should eventually be combined
373 # into a single object. For the moment, just initialize them as a pair.
374 # Each format describes both the big and little endian layouts (if
377 v:int:half_bit:::16:2*TARGET_CHAR_BIT::0
378 v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format)
379 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
380 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
381 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
382 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
383 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
384 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
386 # For most targets, a pointer on the target and its representation as an
387 # address in GDB have the same size and "look the same". For such a
388 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
389 # / addr_bit will be set from it.
391 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
392 # also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
393 # gdbarch_address_to_pointer as well.
395 # ptr_bit is the size of a pointer on the target
396 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
397 # addr_bit is the size of a target address as represented in gdb
398 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
400 # dwarf2_addr_size is the target address size as used in the Dwarf debug
401 # info. For .debug_frame FDEs, this is supposed to be the target address
402 # size from the associated CU header, and which is equivalent to the
403 # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
404 # Unfortunately there is no good way to determine this value. Therefore
405 # dwarf2_addr_size simply defaults to the target pointer size.
407 # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
408 # defined using the target's pointer size so far.
410 # Note that dwarf2_addr_size only needs to be redefined by a target if the
411 # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
412 # and if Dwarf versions < 4 need to be supported.
413 v:int:dwarf2_addr_size:::sizeof (void*):0:gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT:
415 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
416 v:int:char_signed:::1:-1:1
418 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
419 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
420 # Function for getting target's idea of a frame pointer. FIXME: GDB's
421 # whole scheme for dealing with "frames" and "frame pointers" needs a
423 m:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
425 M:enum register_status:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
426 # Read a register into a new struct value. If the register is wholly
427 # or partly unavailable, this should call mark_value_bytes_unavailable
428 # as appropriate. If this is defined, then pseudo_register_read will
430 M:struct value *:pseudo_register_read_value:struct regcache *regcache, int cookednum:regcache, cookednum
431 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
433 v:int:num_regs:::0:-1
434 # This macro gives the number of pseudo-registers that live in the
435 # register namespace but do not get fetched or stored on the target.
436 # These pseudo-registers may be aliases for other registers,
437 # combinations of other registers, or they may be computed by GDB.
438 v:int:num_pseudo_regs:::0:0::0
440 # Assemble agent expression bytecode to collect pseudo-register REG.
441 # Return -1 if something goes wrong, 0 otherwise.
442 M:int:ax_pseudo_register_collect:struct agent_expr *ax, int reg:ax, reg
444 # Assemble agent expression bytecode to push the value of pseudo-register
445 # REG on the interpreter stack.
446 # Return -1 if something goes wrong, 0 otherwise.
447 M:int:ax_pseudo_register_push_stack:struct agent_expr *ax, int reg:ax, reg
449 # GDB's standard (or well known) register numbers. These can map onto
450 # a real register or a pseudo (computed) register or not be defined at
452 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
453 v:int:sp_regnum:::-1:-1::0
454 v:int:pc_regnum:::-1:-1::0
455 v:int:ps_regnum:::-1:-1::0
456 v:int:fp0_regnum:::0:-1::0
457 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
458 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
459 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
460 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
461 # Convert from an sdb register number to an internal gdb register number.
462 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
463 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
464 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
465 m:const char *:register_name:int regnr:regnr::0
467 # Return the type of a register specified by the architecture. Only
468 # the register cache should call this function directly; others should
469 # use "register_type".
470 M:struct type *:register_type:int reg_nr:reg_nr
472 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
473 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
474 # deprecated_fp_regnum.
475 v:int:deprecated_fp_regnum:::-1:-1::0
477 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
478 v:int:call_dummy_location::::AT_ENTRY_POINT::0
479 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
481 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
482 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
483 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
484 # MAP a GDB RAW register number onto a simulator register number. See
485 # also include/...-sim.h.
486 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
487 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
488 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
490 # Determine the address where a longjmp will land and save this address
491 # in PC. Return nonzero on success.
493 # FRAME corresponds to the longjmp frame.
494 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
497 v:int:believe_pcc_promotion:::::::
499 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
500 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
501 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
502 # Construct a value representing the contents of register REGNUM in
503 # frame FRAME_ID, interpreted as type TYPE. The routine needs to
504 # allocate and return a struct value with all value attributes
505 # (but not the value contents) filled in.
506 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
508 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
509 m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
510 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
512 # Return the return-value convention that will be used by FUNCTION
513 # to return a value of type VALTYPE. FUNCTION may be NULL in which
514 # case the return convention is computed based only on VALTYPE.
516 # If READBUF is not NULL, extract the return value and save it in this buffer.
518 # If WRITEBUF is not NULL, it contains a return value which will be
519 # stored into the appropriate register. This can be used when we want
520 # to force the value returned by a function (see the "return" command
522 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
524 # Return true if the return value of function is stored in the first hidden
525 # parameter. In theory, this feature should be language-dependent, specified
526 # by language and its ABI, such as C++. Unfortunately, compiler may
527 # implement it to a target-dependent feature. So that we need such hook here
528 # to be aware of this in GDB.
529 m:int:return_in_first_hidden_param_p:struct type *type:type::default_return_in_first_hidden_param_p::0
531 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
532 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
533 # On some platforms, a single function may provide multiple entry points,
534 # e.g. one that is used for function-pointer calls and a different one
535 # that is used for direct function calls.
536 # In order to ensure that breakpoints set on the function will trigger
537 # no matter via which entry point the function is entered, a platform
538 # may provide the skip_entrypoint callback. It is called with IP set
539 # to the main entry point of a function (as determined by the symbol table),
540 # and should return the address of the innermost entry point, where the
541 # actual breakpoint needs to be set. Note that skip_entrypoint is used
542 # by GDB common code even when debugging optimized code, where skip_prologue
544 M:CORE_ADDR:skip_entrypoint:CORE_ADDR ip:ip
546 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
547 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
548 # Return the adjusted address and kind to use for Z0/Z1 packets.
549 # KIND is usually the memory length of the breakpoint, but may have a
550 # different target-specific meaning.
551 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
552 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
553 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
554 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
555 v:CORE_ADDR:decr_pc_after_break:::0:::0
557 # A function can be addressed by either it's "pointer" (possibly a
558 # descriptor address) or "entry point" (first executable instruction).
559 # The method "convert_from_func_ptr_addr" converting the former to the
560 # latter. gdbarch_deprecated_function_start_offset is being used to implement
561 # a simplified subset of that functionality - the function's address
562 # corresponds to the "function pointer" and the function's start
563 # corresponds to the "function entry point" - and hence is redundant.
565 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
567 # Return the remote protocol register number associated with this
568 # register. Normally the identity mapping.
569 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
571 # Fetch the target specific address used to represent a load module.
572 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
574 v:CORE_ADDR:frame_args_skip:::0:::0
575 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
576 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
577 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
578 # frame-base. Enable frame-base before frame-unwind.
579 F:int:frame_num_args:struct frame_info *frame:frame
581 M:CORE_ADDR:frame_align:CORE_ADDR address:address
582 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
583 v:int:frame_red_zone_size
585 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
586 # On some machines there are bits in addresses which are not really
587 # part of the address, but are used by the kernel, the hardware, etc.
588 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
589 # we get a "real" address such as one would find in a symbol table.
590 # This is used only for addresses of instructions, and even then I'm
591 # not sure it's used in all contexts. It exists to deal with there
592 # being a few stray bits in the PC which would mislead us, not as some
593 # sort of generic thing to handle alignment or segmentation (it's
594 # possible it should be in TARGET_READ_PC instead).
595 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
597 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
598 # indicates if the target needs software single step. An ISA method to
601 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
602 # breakpoints using the breakpoint system instead of blatting memory directly
605 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
606 # target can single step. If not, then implement single step using breakpoints.
608 # A return value of 1 means that the software_single_step breakpoints
609 # were inserted; 0 means they were not.
610 F:int:software_single_step:struct frame_info *frame:frame
612 # Return non-zero if the processor is executing a delay slot and a
613 # further single-step is needed before the instruction finishes.
614 M:int:single_step_through_delay:struct frame_info *frame:frame
615 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
616 # disassembler. Perhaps objdump can handle it?
617 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
618 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
621 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
622 # evaluates non-zero, this is the address where the debugger will place
623 # a step-resume breakpoint to get us past the dynamic linker.
624 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
625 # Some systems also have trampoline code for returning from shared libs.
626 m:int:in_solib_return_trampoline:CORE_ADDR pc, const char *name:pc, name::generic_in_solib_return_trampoline::0
628 # A target might have problems with watchpoints as soon as the stack
629 # frame of the current function has been destroyed. This mostly happens
630 # as the first action in a funtion's epilogue. in_function_epilogue_p()
631 # is defined to return a non-zero value if either the given addr is one
632 # instruction after the stack destroying instruction up to the trailing
633 # return instruction or if we can figure out that the stack frame has
634 # already been invalidated regardless of the value of addr. Targets
635 # which don't suffer from that problem could just let this functionality
637 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
638 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
639 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
640 v:int:cannot_step_breakpoint:::0:0::0
641 v:int:have_nonsteppable_watchpoint:::0:0::0
642 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
643 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
645 # Return the appropriate type_flags for the supplied address class.
646 # This function should return 1 if the address class was recognized and
647 # type_flags was set, zero otherwise.
648 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
649 # Is a register in a group
650 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
651 # Fetch the pointer to the ith function argument.
652 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
654 # Iterate over all supported register notes in a core file. For each
655 # supported register note section, the iterator must call CB and pass
656 # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
657 # the supported register note sections based on the current register
658 # values. Otherwise it should enumerate all supported register note
660 M:void:iterate_over_regset_sections:iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache:cb, cb_data, regcache
662 # Create core file notes
663 M:char *:make_corefile_notes:bfd *obfd, int *note_size:obfd, note_size
665 # The elfcore writer hook to use to write Linux prpsinfo notes to core
666 # files. Most Linux architectures use the same prpsinfo32 or
667 # prpsinfo64 layouts, and so won't need to provide this hook, as we
668 # call the Linux generic routines in bfd to write prpsinfo notes by
670 F:char *:elfcore_write_linux_prpsinfo:bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info:obfd, note_data, note_size, info
672 # Find core file memory regions
673 M:int:find_memory_regions:find_memory_region_ftype func, void *data:func, data
675 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
676 # core file into buffer READBUF with length LEN. Return the number of bytes read
677 # (zero indicates failure).
678 # failed, otherwise, return the red length of READBUF.
679 M:ULONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
681 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
682 # libraries list from core file into buffer READBUF with length LEN.
683 # Return the number of bytes read (zero indicates failure).
684 M:ULONGEST:core_xfer_shared_libraries_aix:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
686 # How the core target converts a PTID from a core file to a string.
687 M:char *:core_pid_to_str:ptid_t ptid:ptid
689 # BFD target to use when generating a core file.
690 V:const char *:gcore_bfd_target:::0:0:::pstring (gdbarch->gcore_bfd_target)
692 # If the elements of C++ vtables are in-place function descriptors rather
693 # than normal function pointers (which may point to code or a descriptor),
695 v:int:vtable_function_descriptors:::0:0::0
697 # Set if the least significant bit of the delta is used instead of the least
698 # significant bit of the pfn for pointers to virtual member functions.
699 v:int:vbit_in_delta:::0:0::0
701 # Advance PC to next instruction in order to skip a permanent breakpoint.
702 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
704 # The maximum length of an instruction on this architecture in bytes.
705 V:ULONGEST:max_insn_length:::0:0
707 # Copy the instruction at FROM to TO, and make any adjustments
708 # necessary to single-step it at that address.
710 # REGS holds the state the thread's registers will have before
711 # executing the copied instruction; the PC in REGS will refer to FROM,
712 # not the copy at TO. The caller should update it to point at TO later.
714 # Return a pointer to data of the architecture's choice to be passed
715 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
716 # the instruction's effects have been completely simulated, with the
717 # resulting state written back to REGS.
719 # For a general explanation of displaced stepping and how GDB uses it,
720 # see the comments in infrun.c.
722 # The TO area is only guaranteed to have space for
723 # gdbarch_max_insn_length (arch) bytes, so this function must not
724 # write more bytes than that to that area.
726 # If you do not provide this function, GDB assumes that the
727 # architecture does not support displaced stepping.
729 # If your architecture doesn't need to adjust instructions before
730 # single-stepping them, consider using simple_displaced_step_copy_insn
732 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
734 # Return true if GDB should use hardware single-stepping to execute
735 # the displaced instruction identified by CLOSURE. If false,
736 # GDB will simply restart execution at the displaced instruction
737 # location, and it is up to the target to ensure GDB will receive
738 # control again (e.g. by placing a software breakpoint instruction
739 # into the displaced instruction buffer).
741 # The default implementation returns false on all targets that
742 # provide a gdbarch_software_single_step routine, and true otherwise.
743 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
745 # Fix up the state resulting from successfully single-stepping a
746 # displaced instruction, to give the result we would have gotten from
747 # stepping the instruction in its original location.
749 # REGS is the register state resulting from single-stepping the
750 # displaced instruction.
752 # CLOSURE is the result from the matching call to
753 # gdbarch_displaced_step_copy_insn.
755 # If you provide gdbarch_displaced_step_copy_insn.but not this
756 # function, then GDB assumes that no fixup is needed after
757 # single-stepping the instruction.
759 # For a general explanation of displaced stepping and how GDB uses it,
760 # see the comments in infrun.c.
761 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
763 # Free a closure returned by gdbarch_displaced_step_copy_insn.
765 # If you provide gdbarch_displaced_step_copy_insn, you must provide
766 # this function as well.
768 # If your architecture uses closures that don't need to be freed, then
769 # you can use simple_displaced_step_free_closure here.
771 # For a general explanation of displaced stepping and how GDB uses it,
772 # see the comments in infrun.c.
773 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
775 # Return the address of an appropriate place to put displaced
776 # instructions while we step over them. There need only be one such
777 # place, since we're only stepping one thread over a breakpoint at a
780 # For a general explanation of displaced stepping and how GDB uses it,
781 # see the comments in infrun.c.
782 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
784 # Relocate an instruction to execute at a different address. OLDLOC
785 # is the address in the inferior memory where the instruction to
786 # relocate is currently at. On input, TO points to the destination
787 # where we want the instruction to be copied (and possibly adjusted)
788 # to. On output, it points to one past the end of the resulting
789 # instruction(s). The effect of executing the instruction at TO shall
790 # be the same as if executing it at FROM. For example, call
791 # instructions that implicitly push the return address on the stack
792 # should be adjusted to return to the instruction after OLDLOC;
793 # relative branches, and other PC-relative instructions need the
794 # offset adjusted; etc.
795 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
797 # Refresh overlay mapped state for section OSECT.
798 F:void:overlay_update:struct obj_section *osect:osect
800 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
802 # Handle special encoding of static variables in stabs debug info.
803 F:const char *:static_transform_name:const char *name:name
804 # Set if the address in N_SO or N_FUN stabs may be zero.
805 v:int:sofun_address_maybe_missing:::0:0::0
807 # Parse the instruction at ADDR storing in the record execution log
808 # the registers REGCACHE and memory ranges that will be affected when
809 # the instruction executes, along with their current values.
810 # Return -1 if something goes wrong, 0 otherwise.
811 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
813 # Save process state after a signal.
814 # Return -1 if something goes wrong, 0 otherwise.
815 M:int:process_record_signal:struct regcache *regcache, enum gdb_signal signal:regcache, signal
817 # Signal translation: translate inferior's signal (target's) number
818 # into GDB's representation. The implementation of this method must
819 # be host independent. IOW, don't rely on symbols of the NAT_FILE
820 # header (the nm-*.h files), the host <signal.h> header, or similar
821 # headers. This is mainly used when cross-debugging core files ---
822 # "Live" targets hide the translation behind the target interface
823 # (target_wait, target_resume, etc.).
824 M:enum gdb_signal:gdb_signal_from_target:int signo:signo
826 # Signal translation: translate the GDB's internal signal number into
827 # the inferior's signal (target's) representation. The implementation
828 # of this method must be host independent. IOW, don't rely on symbols
829 # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
830 # header, or similar headers.
831 # Return the target signal number if found, or -1 if the GDB internal
832 # signal number is invalid.
833 M:int:gdb_signal_to_target:enum gdb_signal signal:signal
835 # Extra signal info inspection.
837 # Return a type suitable to inspect extra signal information.
838 M:struct type *:get_siginfo_type:void:
840 # Record architecture-specific information from the symbol table.
841 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
843 # Function for the 'catch syscall' feature.
845 # Get architecture-specific system calls information from registers.
846 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
848 # SystemTap related fields and functions.
850 # A NULL-terminated array of prefixes used to mark an integer constant
851 # on the architecture's assembly.
852 # For example, on x86 integer constants are written as:
854 # \$10 ;; integer constant 10
856 # in this case, this prefix would be the character \`\$\'.
857 v:const char *const *:stap_integer_prefixes:::0:0::0:pstring_list (gdbarch->stap_integer_prefixes)
859 # A NULL-terminated array of suffixes used to mark an integer constant
860 # on the architecture's assembly.
861 v:const char *const *:stap_integer_suffixes:::0:0::0:pstring_list (gdbarch->stap_integer_suffixes)
863 # A NULL-terminated array of prefixes used to mark a register name on
864 # the architecture's assembly.
865 # For example, on x86 the register name is written as:
867 # \%eax ;; register eax
869 # in this case, this prefix would be the character \`\%\'.
870 v:const char *const *:stap_register_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_prefixes)
872 # A NULL-terminated array of suffixes used to mark a register name on
873 # the architecture's assembly.
874 v:const char *const *:stap_register_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_suffixes)
876 # A NULL-terminated array of prefixes used to mark a register
877 # indirection on the architecture's assembly.
878 # For example, on x86 the register indirection is written as:
880 # \(\%eax\) ;; indirecting eax
882 # in this case, this prefix would be the charater \`\(\'.
884 # Please note that we use the indirection prefix also for register
885 # displacement, e.g., \`4\(\%eax\)\' on x86.
886 v:const char *const *:stap_register_indirection_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_prefixes)
888 # A NULL-terminated array of suffixes used to mark a register
889 # indirection on the architecture's assembly.
890 # For example, on x86 the register indirection is written as:
892 # \(\%eax\) ;; indirecting eax
894 # in this case, this prefix would be the charater \`\)\'.
896 # Please note that we use the indirection suffix also for register
897 # displacement, e.g., \`4\(\%eax\)\' on x86.
898 v:const char *const *:stap_register_indirection_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_suffixes)
900 # Prefix(es) used to name a register using GDB's nomenclature.
902 # For example, on PPC a register is represented by a number in the assembly
903 # language (e.g., \`10\' is the 10th general-purpose register). However,
904 # inside GDB this same register has an \`r\' appended to its name, so the 10th
905 # register would be represented as \`r10\' internally.
906 v:const char *:stap_gdb_register_prefix:::0:0::0:pstring (gdbarch->stap_gdb_register_prefix)
908 # Suffix used to name a register using GDB's nomenclature.
909 v:const char *:stap_gdb_register_suffix:::0:0::0:pstring (gdbarch->stap_gdb_register_suffix)
911 # Check if S is a single operand.
913 # Single operands can be:
914 # \- Literal integers, e.g. \`\$10\' on x86
915 # \- Register access, e.g. \`\%eax\' on x86
916 # \- Register indirection, e.g. \`\(\%eax\)\' on x86
917 # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
919 # This function should check for these patterns on the string
920 # and return 1 if some were found, or zero otherwise. Please try to match
921 # as much info as you can from the string, i.e., if you have to match
922 # something like \`\(\%\', do not match just the \`\(\'.
923 M:int:stap_is_single_operand:const char *s:s
925 # Function used to handle a "special case" in the parser.
927 # A "special case" is considered to be an unknown token, i.e., a token
928 # that the parser does not know how to parse. A good example of special
929 # case would be ARM's register displacement syntax:
931 # [R0, #4] ;; displacing R0 by 4
933 # Since the parser assumes that a register displacement is of the form:
935 # <number> <indirection_prefix> <register_name> <indirection_suffix>
937 # it means that it will not be able to recognize and parse this odd syntax.
938 # Therefore, we should add a special case function that will handle this token.
940 # This function should generate the proper expression form of the expression
941 # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
942 # and so on). It should also return 1 if the parsing was successful, or zero
943 # if the token was not recognized as a special token (in this case, returning
944 # zero means that the special parser is deferring the parsing to the generic
945 # parser), and should advance the buffer pointer (p->arg).
946 M:int:stap_parse_special_token:struct stap_parse_info *p:p
949 # True if the list of shared libraries is one and only for all
950 # processes, as opposed to a list of shared libraries per inferior.
951 # This usually means that all processes, although may or may not share
952 # an address space, will see the same set of symbols at the same
954 v:int:has_global_solist:::0:0::0
956 # On some targets, even though each inferior has its own private
957 # address space, the debug interface takes care of making breakpoints
958 # visible to all address spaces automatically. For such cases,
959 # this property should be set to true.
960 v:int:has_global_breakpoints:::0:0::0
962 # True if inferiors share an address space (e.g., uClinux).
963 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
965 # True if a fast tracepoint can be set at an address.
966 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
968 # Return the "auto" target charset.
969 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
970 # Return the "auto" target wide charset.
971 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
973 # If non-empty, this is a file extension that will be opened in place
974 # of the file extension reported by the shared library list.
976 # This is most useful for toolchains that use a post-linker tool,
977 # where the names of the files run on the target differ in extension
978 # compared to the names of the files GDB should load for debug info.
979 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
981 # If true, the target OS has DOS-based file system semantics. That
982 # is, absolute paths include a drive name, and the backslash is
983 # considered a directory separator.
984 v:int:has_dos_based_file_system:::0:0::0
986 # Generate bytecodes to collect the return address in a frame.
987 # Since the bytecodes run on the target, possibly with GDB not even
988 # connected, the full unwinding machinery is not available, and
989 # typically this function will issue bytecodes for one or more likely
990 # places that the return address may be found.
991 m:void:gen_return_address:struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope:ax, value, scope::default_gen_return_address::0
993 # Implement the "info proc" command.
994 M:void:info_proc:const char *args, enum info_proc_what what:args, what
996 # Implement the "info proc" command for core files. Noe that there
997 # are two "info_proc"-like methods on gdbarch -- one for core files,
998 # one for live targets.
999 M:void:core_info_proc:const char *args, enum info_proc_what what:args, what
1001 # Iterate over all objfiles in the order that makes the most sense
1002 # for the architecture to make global symbol searches.
1004 # CB is a callback function where OBJFILE is the objfile to be searched,
1005 # and CB_DATA a pointer to user-defined data (the same data that is passed
1006 # when calling this gdbarch method). The iteration stops if this function
1009 # CB_DATA is a pointer to some user-defined data to be passed to
1012 # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
1013 # inspected when the symbol search was requested.
1014 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
1016 # Ravenscar arch-dependent ops.
1017 v:struct ravenscar_arch_ops *:ravenscar_ops:::NULL:NULL::0:host_address_to_string (gdbarch->ravenscar_ops)
1019 # Return non-zero if the instruction at ADDR is a call; zero otherwise.
1020 m:int:insn_is_call:CORE_ADDR addr:addr::default_insn_is_call::0
1022 # Return non-zero if the instruction at ADDR is a return; zero otherwise.
1023 m:int:insn_is_ret:CORE_ADDR addr:addr::default_insn_is_ret::0
1025 # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
1026 m:int:insn_is_jump:CORE_ADDR addr:addr::default_insn_is_jump::0
1028 # Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
1029 # Return 0 if *READPTR is already at the end of the buffer.
1030 # Return -1 if there is insufficient buffer for a whole entry.
1031 # Return 1 if an entry was read into *TYPEP and *VALP.
1032 M:int:auxv_parse:gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp:readptr, endptr, typep, valp
1039 exec > new-gdbarch.log
1040 function_list | while do_read
1043 ${class} ${returntype} ${function} ($formal)
1047 eval echo \"\ \ \ \ ${r}=\${${r}}\"
1049 if class_is_predicate_p && fallback_default_p
1051 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
1055 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
1057 echo "Error: postdefault is useless when invalid_p=0" 1>&2
1061 if class_is_multiarch_p
1063 if class_is_predicate_p ; then :
1064 elif test "x${predefault}" = "x"
1066 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
1075 compare_new gdbarch.log
1081 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
1084 /* Dynamic architecture support for GDB, the GNU debugger.
1086 Copyright (C) 1998-2014 Free Software Foundation, Inc.
1088 This file is part of GDB.
1090 This program is free software; you can redistribute it and/or modify
1091 it under the terms of the GNU General Public License as published by
1092 the Free Software Foundation; either version 3 of the License, or
1093 (at your option) any later version.
1095 This program is distributed in the hope that it will be useful,
1096 but WITHOUT ANY WARRANTY; without even the implied warranty of
1097 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1098 GNU General Public License for more details.
1100 You should have received a copy of the GNU General Public License
1101 along with this program. If not, see <http://www.gnu.org/licenses/>. */
1103 /* This file was created with the aid of \`\`gdbarch.sh''.
1105 The Bourne shell script \`\`gdbarch.sh'' creates the files
1106 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
1107 against the existing \`\`gdbarch.[hc]''. Any differences found
1110 If editing this file, please also run gdbarch.sh and merge any
1111 changes into that script. Conversely, when making sweeping changes
1112 to this file, modifying gdbarch.sh and using its output may prove
1122 exec > new-gdbarch.h
1135 struct minimal_symbol;
1139 struct disassemble_info;
1142 struct bp_target_info;
1144 struct displaced_step_closure;
1145 struct core_regset_section;
1149 struct stap_parse_info;
1150 struct ravenscar_arch_ops;
1151 struct elf_internal_linux_prpsinfo;
1153 /* The architecture associated with the inferior through the
1154 connection to the target.
1156 The architecture vector provides some information that is really a
1157 property of the inferior, accessed through a particular target:
1158 ptrace operations; the layout of certain RSP packets; the solib_ops
1159 vector; etc. To differentiate architecture accesses to
1160 per-inferior/target properties from
1161 per-thread/per-frame/per-objfile properties, accesses to
1162 per-inferior/target properties should be made through this
1165 /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
1166 extern struct gdbarch *target_gdbarch (void);
1168 /* Callback type for the 'iterate_over_objfiles_in_search_order'
1171 typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
1172 (struct objfile *objfile, void *cb_data);
1174 typedef void (iterate_over_regset_sections_cb)
1175 (const char *sect_name, int size, const struct regset *regset,
1176 const char *human_name, void *cb_data);
1179 # function typedef's
1182 printf "/* The following are pre-initialized by GDBARCH. */\n"
1183 function_list | while do_read
1188 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1189 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
1193 # function typedef's
1196 printf "/* The following are initialized by the target dependent code. */\n"
1197 function_list | while do_read
1199 if [ -n "${comment}" ]
1201 echo "${comment}" | sed \
1207 if class_is_predicate_p
1210 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1212 if class_is_variable_p
1215 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1216 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1218 if class_is_function_p
1221 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1223 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1224 elif class_is_multiarch_p
1226 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1228 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1230 if [ "x${formal}" = "xvoid" ]
1232 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1234 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1236 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1243 /* Definition for an unknown syscall, used basically in error-cases. */
1244 #define UNKNOWN_SYSCALL (-1)
1246 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1249 /* Mechanism for co-ordinating the selection of a specific
1252 GDB targets (*-tdep.c) can register an interest in a specific
1253 architecture. Other GDB components can register a need to maintain
1254 per-architecture data.
1256 The mechanisms below ensures that there is only a loose connection
1257 between the set-architecture command and the various GDB
1258 components. Each component can independently register their need
1259 to maintain architecture specific data with gdbarch.
1263 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1266 The more traditional mega-struct containing architecture specific
1267 data for all the various GDB components was also considered. Since
1268 GDB is built from a variable number of (fairly independent)
1269 components it was determined that the global aproach was not
1273 /* Register a new architectural family with GDB.
1275 Register support for the specified ARCHITECTURE with GDB. When
1276 gdbarch determines that the specified architecture has been
1277 selected, the corresponding INIT function is called.
1281 The INIT function takes two parameters: INFO which contains the
1282 information available to gdbarch about the (possibly new)
1283 architecture; ARCHES which is a list of the previously created
1284 \`\`struct gdbarch'' for this architecture.
1286 The INFO parameter is, as far as possible, be pre-initialized with
1287 information obtained from INFO.ABFD or the global defaults.
1289 The ARCHES parameter is a linked list (sorted most recently used)
1290 of all the previously created architures for this architecture
1291 family. The (possibly NULL) ARCHES->gdbarch can used to access
1292 values from the previously selected architecture for this
1293 architecture family.
1295 The INIT function shall return any of: NULL - indicating that it
1296 doesn't recognize the selected architecture; an existing \`\`struct
1297 gdbarch'' from the ARCHES list - indicating that the new
1298 architecture is just a synonym for an earlier architecture (see
1299 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1300 - that describes the selected architecture (see gdbarch_alloc()).
1302 The DUMP_TDEP function shall print out all target specific values.
1303 Care should be taken to ensure that the function works in both the
1304 multi-arch and non- multi-arch cases. */
1308 struct gdbarch *gdbarch;
1309 struct gdbarch_list *next;
1314 /* Use default: NULL (ZERO). */
1315 const struct bfd_arch_info *bfd_arch_info;
1317 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1318 enum bfd_endian byte_order;
1320 enum bfd_endian byte_order_for_code;
1322 /* Use default: NULL (ZERO). */
1325 /* Use default: NULL (ZERO). */
1326 struct gdbarch_tdep_info *tdep_info;
1328 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1329 enum gdb_osabi osabi;
1331 /* Use default: NULL (ZERO). */
1332 const struct target_desc *target_desc;
1335 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1336 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1338 /* DEPRECATED - use gdbarch_register() */
1339 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1341 extern void gdbarch_register (enum bfd_architecture architecture,
1342 gdbarch_init_ftype *,
1343 gdbarch_dump_tdep_ftype *);
1346 /* Return a freshly allocated, NULL terminated, array of the valid
1347 architecture names. Since architectures are registered during the
1348 _initialize phase this function only returns useful information
1349 once initialization has been completed. */
1351 extern const char **gdbarch_printable_names (void);
1354 /* Helper function. Search the list of ARCHES for a GDBARCH that
1355 matches the information provided by INFO. */
1357 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1360 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1361 basic initialization using values obtained from the INFO and TDEP
1362 parameters. set_gdbarch_*() functions are called to complete the
1363 initialization of the object. */
1365 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1368 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1369 It is assumed that the caller freeds the \`\`struct
1372 extern void gdbarch_free (struct gdbarch *);
1375 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1376 obstack. The memory is freed when the corresponding architecture
1379 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1380 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1381 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1384 /* Helper function. Force an update of the current architecture.
1386 The actual architecture selected is determined by INFO, \`\`(gdb) set
1387 architecture'' et.al., the existing architecture and BFD's default
1388 architecture. INFO should be initialized to zero and then selected
1389 fields should be updated.
1391 Returns non-zero if the update succeeds. */
1393 extern int gdbarch_update_p (struct gdbarch_info info);
1396 /* Helper function. Find an architecture matching info.
1398 INFO should be initialized using gdbarch_info_init, relevant fields
1399 set, and then finished using gdbarch_info_fill.
1401 Returns the corresponding architecture, or NULL if no matching
1402 architecture was found. */
1404 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1407 /* Helper function. Set the target gdbarch to "gdbarch". */
1409 extern void set_target_gdbarch (struct gdbarch *gdbarch);
1412 /* Register per-architecture data-pointer.
1414 Reserve space for a per-architecture data-pointer. An identifier
1415 for the reserved data-pointer is returned. That identifer should
1416 be saved in a local static variable.
1418 Memory for the per-architecture data shall be allocated using
1419 gdbarch_obstack_zalloc. That memory will be deleted when the
1420 corresponding architecture object is deleted.
1422 When a previously created architecture is re-selected, the
1423 per-architecture data-pointer for that previous architecture is
1424 restored. INIT() is not re-called.
1426 Multiple registrarants for any architecture are allowed (and
1427 strongly encouraged). */
1429 struct gdbarch_data;
1431 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1432 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1433 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1434 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1435 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1436 struct gdbarch_data *data,
1439 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1442 /* Set the dynamic target-system-dependent parameters (architecture,
1443 byte-order, ...) using information found in the BFD. */
1445 extern void set_gdbarch_from_file (bfd *);
1448 /* Initialize the current architecture to the "first" one we find on
1451 extern void initialize_current_architecture (void);
1453 /* gdbarch trace variable */
1454 extern unsigned int gdbarch_debug;
1456 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1461 #../move-if-change new-gdbarch.h gdbarch.h
1462 compare_new gdbarch.h
1469 exec > new-gdbarch.c
1474 #include "arch-utils.h"
1477 #include "inferior.h"
1480 #include "floatformat.h"
1481 #include "reggroups.h"
1483 #include "gdb_obstack.h"
1484 #include "observer.h"
1485 #include "regcache.h"
1486 #include "objfiles.h"
1488 /* Static function declarations */
1490 static void alloc_gdbarch_data (struct gdbarch *);
1492 /* Non-zero if we want to trace architecture code. */
1494 #ifndef GDBARCH_DEBUG
1495 #define GDBARCH_DEBUG 0
1497 unsigned int gdbarch_debug = GDBARCH_DEBUG;
1499 show_gdbarch_debug (struct ui_file *file, int from_tty,
1500 struct cmd_list_element *c, const char *value)
1502 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1506 pformat (const struct floatformat **format)
1511 /* Just print out one of them - this is only for diagnostics. */
1512 return format[0]->name;
1516 pstring (const char *string)
1523 /* Helper function to print a list of strings, represented as "const
1524 char *const *". The list is printed comma-separated. */
1527 pstring_list (const char *const *list)
1529 static char ret[100];
1530 const char *const *p;
1537 for (p = list; *p != NULL && offset < sizeof (ret); ++p)
1539 size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
1545 gdb_assert (offset - 2 < sizeof (ret));
1546 ret[offset - 2] = '\0';
1554 # gdbarch open the gdbarch object
1556 printf "/* Maintain the struct gdbarch object. */\n"
1558 printf "struct gdbarch\n"
1560 printf " /* Has this architecture been fully initialized? */\n"
1561 printf " int initialized_p;\n"
1563 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1564 printf " struct obstack *obstack;\n"
1566 printf " /* basic architectural information. */\n"
1567 function_list | while do_read
1571 printf " ${returntype} ${function};\n"
1575 printf " /* target specific vector. */\n"
1576 printf " struct gdbarch_tdep *tdep;\n"
1577 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1579 printf " /* per-architecture data-pointers. */\n"
1580 printf " unsigned nr_data;\n"
1581 printf " void **data;\n"
1584 /* Multi-arch values.
1586 When extending this structure you must:
1588 Add the field below.
1590 Declare set/get functions and define the corresponding
1593 gdbarch_alloc(): If zero/NULL is not a suitable default,
1594 initialize the new field.
1596 verify_gdbarch(): Confirm that the target updated the field
1599 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1602 get_gdbarch(): Implement the set/get functions (probably using
1603 the macro's as shortcuts).
1608 function_list | while do_read
1610 if class_is_variable_p
1612 printf " ${returntype} ${function};\n"
1613 elif class_is_function_p
1615 printf " gdbarch_${function}_ftype *${function};\n"
1620 # Create a new gdbarch struct
1623 /* Create a new \`\`struct gdbarch'' based on information provided by
1624 \`\`struct gdbarch_info''. */
1629 gdbarch_alloc (const struct gdbarch_info *info,
1630 struct gdbarch_tdep *tdep)
1632 struct gdbarch *gdbarch;
1634 /* Create an obstack for allocating all the per-architecture memory,
1635 then use that to allocate the architecture vector. */
1636 struct obstack *obstack = XNEW (struct obstack);
1637 obstack_init (obstack);
1638 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1639 memset (gdbarch, 0, sizeof (*gdbarch));
1640 gdbarch->obstack = obstack;
1642 alloc_gdbarch_data (gdbarch);
1644 gdbarch->tdep = tdep;
1647 function_list | while do_read
1651 printf " gdbarch->${function} = info->${function};\n"
1655 printf " /* Force the explicit initialization of these. */\n"
1656 function_list | while do_read
1658 if class_is_function_p || class_is_variable_p
1660 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1662 printf " gdbarch->${function} = ${predefault};\n"
1667 /* gdbarch_alloc() */
1673 # Free a gdbarch struct.
1677 /* Allocate extra space using the per-architecture obstack. */
1680 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1682 void *data = obstack_alloc (arch->obstack, size);
1684 memset (data, 0, size);
1689 /* Free a gdbarch struct. This should never happen in normal
1690 operation --- once you've created a gdbarch, you keep it around.
1691 However, if an architecture's init function encounters an error
1692 building the structure, it may need to clean up a partially
1693 constructed gdbarch. */
1696 gdbarch_free (struct gdbarch *arch)
1698 struct obstack *obstack;
1700 gdb_assert (arch != NULL);
1701 gdb_assert (!arch->initialized_p);
1702 obstack = arch->obstack;
1703 obstack_free (obstack, 0); /* Includes the ARCH. */
1708 # verify a new architecture
1712 /* Ensure that all values in a GDBARCH are reasonable. */
1715 verify_gdbarch (struct gdbarch *gdbarch)
1717 struct ui_file *log;
1718 struct cleanup *cleanups;
1722 log = mem_fileopen ();
1723 cleanups = make_cleanup_ui_file_delete (log);
1725 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1726 fprintf_unfiltered (log, "\n\tbyte-order");
1727 if (gdbarch->bfd_arch_info == NULL)
1728 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1729 /* Check those that need to be defined for the given multi-arch level. */
1731 function_list | while do_read
1733 if class_is_function_p || class_is_variable_p
1735 if [ "x${invalid_p}" = "x0" ]
1737 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1738 elif class_is_predicate_p
1740 printf " /* Skip verify of ${function}, has predicate. */\n"
1741 # FIXME: See do_read for potential simplification
1742 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1744 printf " if (${invalid_p})\n"
1745 printf " gdbarch->${function} = ${postdefault};\n"
1746 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1748 printf " if (gdbarch->${function} == ${predefault})\n"
1749 printf " gdbarch->${function} = ${postdefault};\n"
1750 elif [ -n "${postdefault}" ]
1752 printf " if (gdbarch->${function} == 0)\n"
1753 printf " gdbarch->${function} = ${postdefault};\n"
1754 elif [ -n "${invalid_p}" ]
1756 printf " if (${invalid_p})\n"
1757 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1758 elif [ -n "${predefault}" ]
1760 printf " if (gdbarch->${function} == ${predefault})\n"
1761 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1766 buf = ui_file_xstrdup (log, &length);
1767 make_cleanup (xfree, buf);
1769 internal_error (__FILE__, __LINE__,
1770 _("verify_gdbarch: the following are invalid ...%s"),
1772 do_cleanups (cleanups);
1776 # dump the structure
1780 /* Print out the details of the current architecture. */
1783 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1785 const char *gdb_nm_file = "<not-defined>";
1787 #if defined (GDB_NM_FILE)
1788 gdb_nm_file = GDB_NM_FILE;
1790 fprintf_unfiltered (file,
1791 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1794 function_list | sort -t: -k 3 | while do_read
1796 # First the predicate
1797 if class_is_predicate_p
1799 printf " fprintf_unfiltered (file,\n"
1800 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1801 printf " gdbarch_${function}_p (gdbarch));\n"
1803 # Print the corresponding value.
1804 if class_is_function_p
1806 printf " fprintf_unfiltered (file,\n"
1807 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1808 printf " host_address_to_string (gdbarch->${function}));\n"
1811 case "${print}:${returntype}" in
1814 print="core_addr_to_string_nz (gdbarch->${function})"
1818 print="plongest (gdbarch->${function})"
1824 printf " fprintf_unfiltered (file,\n"
1825 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1826 printf " ${print});\n"
1830 if (gdbarch->dump_tdep != NULL)
1831 gdbarch->dump_tdep (gdbarch, file);
1839 struct gdbarch_tdep *
1840 gdbarch_tdep (struct gdbarch *gdbarch)
1842 if (gdbarch_debug >= 2)
1843 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1844 return gdbarch->tdep;
1848 function_list | while do_read
1850 if class_is_predicate_p
1854 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1856 printf " gdb_assert (gdbarch != NULL);\n"
1857 printf " return ${predicate};\n"
1860 if class_is_function_p
1863 printf "${returntype}\n"
1864 if [ "x${formal}" = "xvoid" ]
1866 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1868 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1871 printf " gdb_assert (gdbarch != NULL);\n"
1872 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1873 if class_is_predicate_p && test -n "${predefault}"
1875 # Allow a call to a function with a predicate.
1876 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1878 printf " if (gdbarch_debug >= 2)\n"
1879 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1880 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1882 if class_is_multiarch_p
1889 if class_is_multiarch_p
1891 params="gdbarch, ${actual}"
1896 if [ "x${returntype}" = "xvoid" ]
1898 printf " gdbarch->${function} (${params});\n"
1900 printf " return gdbarch->${function} (${params});\n"
1905 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1906 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1908 printf " gdbarch->${function} = ${function};\n"
1910 elif class_is_variable_p
1913 printf "${returntype}\n"
1914 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1916 printf " gdb_assert (gdbarch != NULL);\n"
1917 if [ "x${invalid_p}" = "x0" ]
1919 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1920 elif [ -n "${invalid_p}" ]
1922 printf " /* Check variable is valid. */\n"
1923 printf " gdb_assert (!(${invalid_p}));\n"
1924 elif [ -n "${predefault}" ]
1926 printf " /* Check variable changed from pre-default. */\n"
1927 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1929 printf " if (gdbarch_debug >= 2)\n"
1930 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1931 printf " return gdbarch->${function};\n"
1935 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1936 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1938 printf " gdbarch->${function} = ${function};\n"
1940 elif class_is_info_p
1943 printf "${returntype}\n"
1944 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1946 printf " gdb_assert (gdbarch != NULL);\n"
1947 printf " if (gdbarch_debug >= 2)\n"
1948 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1949 printf " return gdbarch->${function};\n"
1954 # All the trailing guff
1958 /* Keep a registry of per-architecture data-pointers required by GDB
1965 gdbarch_data_pre_init_ftype *pre_init;
1966 gdbarch_data_post_init_ftype *post_init;
1969 struct gdbarch_data_registration
1971 struct gdbarch_data *data;
1972 struct gdbarch_data_registration *next;
1975 struct gdbarch_data_registry
1978 struct gdbarch_data_registration *registrations;
1981 struct gdbarch_data_registry gdbarch_data_registry =
1986 static struct gdbarch_data *
1987 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1988 gdbarch_data_post_init_ftype *post_init)
1990 struct gdbarch_data_registration **curr;
1992 /* Append the new registration. */
1993 for (curr = &gdbarch_data_registry.registrations;
1995 curr = &(*curr)->next);
1996 (*curr) = XNEW (struct gdbarch_data_registration);
1997 (*curr)->next = NULL;
1998 (*curr)->data = XNEW (struct gdbarch_data);
1999 (*curr)->data->index = gdbarch_data_registry.nr++;
2000 (*curr)->data->pre_init = pre_init;
2001 (*curr)->data->post_init = post_init;
2002 (*curr)->data->init_p = 1;
2003 return (*curr)->data;
2006 struct gdbarch_data *
2007 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
2009 return gdbarch_data_register (pre_init, NULL);
2012 struct gdbarch_data *
2013 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
2015 return gdbarch_data_register (NULL, post_init);
2018 /* Create/delete the gdbarch data vector. */
2021 alloc_gdbarch_data (struct gdbarch *gdbarch)
2023 gdb_assert (gdbarch->data == NULL);
2024 gdbarch->nr_data = gdbarch_data_registry.nr;
2025 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
2028 /* Initialize the current value of the specified per-architecture
2032 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
2033 struct gdbarch_data *data,
2036 gdb_assert (data->index < gdbarch->nr_data);
2037 gdb_assert (gdbarch->data[data->index] == NULL);
2038 gdb_assert (data->pre_init == NULL);
2039 gdbarch->data[data->index] = pointer;
2042 /* Return the current value of the specified per-architecture
2046 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
2048 gdb_assert (data->index < gdbarch->nr_data);
2049 if (gdbarch->data[data->index] == NULL)
2051 /* The data-pointer isn't initialized, call init() to get a
2053 if (data->pre_init != NULL)
2054 /* Mid architecture creation: pass just the obstack, and not
2055 the entire architecture, as that way it isn't possible for
2056 pre-init code to refer to undefined architecture
2058 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
2059 else if (gdbarch->initialized_p
2060 && data->post_init != NULL)
2061 /* Post architecture creation: pass the entire architecture
2062 (as all fields are valid), but be careful to also detect
2063 recursive references. */
2065 gdb_assert (data->init_p);
2067 gdbarch->data[data->index] = data->post_init (gdbarch);
2071 /* The architecture initialization hasn't completed - punt -
2072 hope that the caller knows what they are doing. Once
2073 deprecated_set_gdbarch_data has been initialized, this can be
2074 changed to an internal error. */
2076 gdb_assert (gdbarch->data[data->index] != NULL);
2078 return gdbarch->data[data->index];
2082 /* Keep a registry of the architectures known by GDB. */
2084 struct gdbarch_registration
2086 enum bfd_architecture bfd_architecture;
2087 gdbarch_init_ftype *init;
2088 gdbarch_dump_tdep_ftype *dump_tdep;
2089 struct gdbarch_list *arches;
2090 struct gdbarch_registration *next;
2093 static struct gdbarch_registration *gdbarch_registry = NULL;
2096 append_name (const char ***buf, int *nr, const char *name)
2098 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
2104 gdbarch_printable_names (void)
2106 /* Accumulate a list of names based on the registed list of
2109 const char **arches = NULL;
2110 struct gdbarch_registration *rego;
2112 for (rego = gdbarch_registry;
2116 const struct bfd_arch_info *ap;
2117 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
2119 internal_error (__FILE__, __LINE__,
2120 _("gdbarch_architecture_names: multi-arch unknown"));
2123 append_name (&arches, &nr_arches, ap->printable_name);
2128 append_name (&arches, &nr_arches, NULL);
2134 gdbarch_register (enum bfd_architecture bfd_architecture,
2135 gdbarch_init_ftype *init,
2136 gdbarch_dump_tdep_ftype *dump_tdep)
2138 struct gdbarch_registration **curr;
2139 const struct bfd_arch_info *bfd_arch_info;
2141 /* Check that BFD recognizes this architecture */
2142 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
2143 if (bfd_arch_info == NULL)
2145 internal_error (__FILE__, __LINE__,
2146 _("gdbarch: Attempt to register "
2147 "unknown architecture (%d)"),
2150 /* Check that we haven't seen this architecture before. */
2151 for (curr = &gdbarch_registry;
2153 curr = &(*curr)->next)
2155 if (bfd_architecture == (*curr)->bfd_architecture)
2156 internal_error (__FILE__, __LINE__,
2157 _("gdbarch: Duplicate registration "
2158 "of architecture (%s)"),
2159 bfd_arch_info->printable_name);
2163 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
2164 bfd_arch_info->printable_name,
2165 host_address_to_string (init));
2167 (*curr) = XNEW (struct gdbarch_registration);
2168 (*curr)->bfd_architecture = bfd_architecture;
2169 (*curr)->init = init;
2170 (*curr)->dump_tdep = dump_tdep;
2171 (*curr)->arches = NULL;
2172 (*curr)->next = NULL;
2176 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2177 gdbarch_init_ftype *init)
2179 gdbarch_register (bfd_architecture, init, NULL);
2183 /* Look for an architecture using gdbarch_info. */
2185 struct gdbarch_list *
2186 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2187 const struct gdbarch_info *info)
2189 for (; arches != NULL; arches = arches->next)
2191 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2193 if (info->byte_order != arches->gdbarch->byte_order)
2195 if (info->osabi != arches->gdbarch->osabi)
2197 if (info->target_desc != arches->gdbarch->target_desc)
2205 /* Find an architecture that matches the specified INFO. Create a new
2206 architecture if needed. Return that new architecture. */
2209 gdbarch_find_by_info (struct gdbarch_info info)
2211 struct gdbarch *new_gdbarch;
2212 struct gdbarch_registration *rego;
2214 /* Fill in missing parts of the INFO struct using a number of
2215 sources: "set ..."; INFOabfd supplied; and the global
2217 gdbarch_info_fill (&info);
2219 /* Must have found some sort of architecture. */
2220 gdb_assert (info.bfd_arch_info != NULL);
2224 fprintf_unfiltered (gdb_stdlog,
2225 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2226 (info.bfd_arch_info != NULL
2227 ? info.bfd_arch_info->printable_name
2229 fprintf_unfiltered (gdb_stdlog,
2230 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2232 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2233 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2235 fprintf_unfiltered (gdb_stdlog,
2236 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2237 info.osabi, gdbarch_osabi_name (info.osabi));
2238 fprintf_unfiltered (gdb_stdlog,
2239 "gdbarch_find_by_info: info.abfd %s\n",
2240 host_address_to_string (info.abfd));
2241 fprintf_unfiltered (gdb_stdlog,
2242 "gdbarch_find_by_info: info.tdep_info %s\n",
2243 host_address_to_string (info.tdep_info));
2246 /* Find the tdep code that knows about this architecture. */
2247 for (rego = gdbarch_registry;
2250 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2255 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2256 "No matching architecture\n");
2260 /* Ask the tdep code for an architecture that matches "info". */
2261 new_gdbarch = rego->init (info, rego->arches);
2263 /* Did the tdep code like it? No. Reject the change and revert to
2264 the old architecture. */
2265 if (new_gdbarch == NULL)
2268 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2269 "Target rejected architecture\n");
2273 /* Is this a pre-existing architecture (as determined by already
2274 being initialized)? Move it to the front of the architecture
2275 list (keeping the list sorted Most Recently Used). */
2276 if (new_gdbarch->initialized_p)
2278 struct gdbarch_list **list;
2279 struct gdbarch_list *this;
2281 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2282 "Previous architecture %s (%s) selected\n",
2283 host_address_to_string (new_gdbarch),
2284 new_gdbarch->bfd_arch_info->printable_name);
2285 /* Find the existing arch in the list. */
2286 for (list = ®o->arches;
2287 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2288 list = &(*list)->next);
2289 /* It had better be in the list of architectures. */
2290 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2293 (*list) = this->next;
2294 /* Insert THIS at the front. */
2295 this->next = rego->arches;
2296 rego->arches = this;
2301 /* It's a new architecture. */
2303 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2304 "New architecture %s (%s) selected\n",
2305 host_address_to_string (new_gdbarch),
2306 new_gdbarch->bfd_arch_info->printable_name);
2308 /* Insert the new architecture into the front of the architecture
2309 list (keep the list sorted Most Recently Used). */
2311 struct gdbarch_list *this = XNEW (struct gdbarch_list);
2312 this->next = rego->arches;
2313 this->gdbarch = new_gdbarch;
2314 rego->arches = this;
2317 /* Check that the newly installed architecture is valid. Plug in
2318 any post init values. */
2319 new_gdbarch->dump_tdep = rego->dump_tdep;
2320 verify_gdbarch (new_gdbarch);
2321 new_gdbarch->initialized_p = 1;
2324 gdbarch_dump (new_gdbarch, gdb_stdlog);
2329 /* Make the specified architecture current. */
2332 set_target_gdbarch (struct gdbarch *new_gdbarch)
2334 gdb_assert (new_gdbarch != NULL);
2335 gdb_assert (new_gdbarch->initialized_p);
2336 current_inferior ()->gdbarch = new_gdbarch;
2337 observer_notify_architecture_changed (new_gdbarch);
2338 registers_changed ();
2341 /* Return the current inferior's arch. */
2344 target_gdbarch (void)
2346 return current_inferior ()->gdbarch;
2349 extern void _initialize_gdbarch (void);
2352 _initialize_gdbarch (void)
2354 add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2355 Set architecture debugging."), _("\\
2356 Show architecture debugging."), _("\\
2357 When non-zero, architecture debugging is enabled."),
2360 &setdebuglist, &showdebuglist);
2366 #../move-if-change new-gdbarch.c gdbarch.c
2367 compare_new gdbarch.c