3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998-2012 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} ${file}" 1>&2
43 # Format of the input table
44 read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
52 if test "${line}" = ""
55 elif test "${line}" = "#" -a "${comment}" = ""
58 elif expr "${line}" : "#" > /dev/null
64 # The semantics of IFS varies between different SH's. Some
65 # treat ``::' as three fields while some treat it as just too.
66 # Work around this by eliminating ``::'' ....
67 line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
69 OFS="${IFS}" ; IFS="[:]"
70 eval read ${read} <<EOF
75 if test -n "${garbage_at_eol}"
77 echo "Garbage at end-of-line in ${line}" 1>&2
82 # .... and then going back through each field and strip out those
83 # that ended up with just that space character.
86 if eval test \"\${${r}}\" = \"\ \"
93 m ) staticdefault="${predefault}" ;;
94 M ) staticdefault="0" ;;
95 * ) test "${staticdefault}" || staticdefault=0 ;;
100 case "${invalid_p}" in
102 if test -n "${predefault}"
104 #invalid_p="gdbarch->${function} == ${predefault}"
105 predicate="gdbarch->${function} != ${predefault}"
106 elif class_is_variable_p
108 predicate="gdbarch->${function} != 0"
109 elif class_is_function_p
111 predicate="gdbarch->${function} != NULL"
115 echo "Predicate function ${function} with invalid_p." 1>&2
122 # PREDEFAULT is a valid fallback definition of MEMBER when
123 # multi-arch is not enabled. This ensures that the
124 # default value, when multi-arch is the same as the
125 # default value when not multi-arch. POSTDEFAULT is
126 # always a valid definition of MEMBER as this again
127 # ensures consistency.
129 if [ -n "${postdefault}" ]
131 fallbackdefault="${postdefault}"
132 elif [ -n "${predefault}" ]
134 fallbackdefault="${predefault}"
139 #NOT YET: See gdbarch.log for basic verification of
154 fallback_default_p ()
156 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
157 || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
160 class_is_variable_p ()
168 class_is_function_p ()
171 *f* | *F* | *m* | *M* ) true ;;
176 class_is_multiarch_p ()
184 class_is_predicate_p ()
187 *F* | *V* | *M* ) true ;;
201 # dump out/verify the doco
211 # F -> function + predicate
212 # hiding a function + predicate to test function validity
215 # V -> variable + predicate
216 # hiding a variable + predicate to test variables validity
218 # hiding something from the ``struct info'' object
219 # m -> multi-arch function
220 # hiding a multi-arch function (parameterised with the architecture)
221 # M -> multi-arch function + predicate
222 # hiding a multi-arch function + predicate to test function validity
226 # For functions, the return type; for variables, the data type
230 # For functions, the member function name; for variables, the
231 # variable name. Member function names are always prefixed with
232 # ``gdbarch_'' for name-space purity.
236 # The formal argument list. It is assumed that the formal
237 # argument list includes the actual name of each list element.
238 # A function with no arguments shall have ``void'' as the
239 # formal argument list.
243 # The list of actual arguments. The arguments specified shall
244 # match the FORMAL list given above. Functions with out
245 # arguments leave this blank.
249 # To help with the GDB startup a static gdbarch object is
250 # created. STATICDEFAULT is the value to insert into that
251 # static gdbarch object. Since this a static object only
252 # simple expressions can be used.
254 # If STATICDEFAULT is empty, zero is used.
258 # An initial value to assign to MEMBER of the freshly
259 # malloc()ed gdbarch object. After initialization, the
260 # freshly malloc()ed object is passed to the target
261 # architecture code for further updates.
263 # If PREDEFAULT is empty, zero is used.
265 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
266 # INVALID_P are specified, PREDEFAULT will be used as the
267 # default for the non- multi-arch target.
269 # A zero PREDEFAULT function will force the fallback to call
272 # Variable declarations can refer to ``gdbarch'' which will
273 # contain the current architecture. Care should be taken.
277 # A value to assign to MEMBER of the new gdbarch object should
278 # the target architecture code fail to change the PREDEFAULT
281 # If POSTDEFAULT is empty, no post update is performed.
283 # If both INVALID_P and POSTDEFAULT are non-empty then
284 # INVALID_P will be used to determine if MEMBER should be
285 # changed to POSTDEFAULT.
287 # If a non-empty POSTDEFAULT and a zero INVALID_P are
288 # specified, POSTDEFAULT will be used as the default for the
289 # non- multi-arch target (regardless of the value of
292 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
294 # Variable declarations can refer to ``gdbarch'' which
295 # will contain the current architecture. Care should be
300 # A predicate equation that validates MEMBER. Non-zero is
301 # returned if the code creating the new architecture failed to
302 # initialize MEMBER or the initialized the member is invalid.
303 # If POSTDEFAULT is non-empty then MEMBER will be updated to
304 # that value. If POSTDEFAULT is empty then internal_error()
307 # If INVALID_P is empty, a check that MEMBER is no longer
308 # equal to PREDEFAULT is used.
310 # The expression ``0'' disables the INVALID_P check making
311 # PREDEFAULT a legitimate value.
313 # See also PREDEFAULT and POSTDEFAULT.
317 # An optional expression that convers MEMBER to a value
318 # suitable for formatting using %s.
320 # If PRINT is empty, core_addr_to_string_nz (for CORE_ADDR)
321 # or plongest (anything else) is used.
323 garbage_at_eol ) : ;;
325 # Catches stray fields.
328 echo "Bad field ${field}"
336 # See below (DOCO) for description of each field
338 i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name
340 i:int:byte_order:::BFD_ENDIAN_BIG
341 i:int:byte_order_for_code:::BFD_ENDIAN_BIG
343 i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
345 i:const struct target_desc *:target_desc:::::::host_address_to_string (gdbarch->target_desc)
347 # The bit byte-order has to do just with numbering of bits in debugging symbols
348 # and such. Conceptually, it's quite separate from byte/word byte order.
349 v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
351 # Number of bits in a char or unsigned char for the target machine.
352 # Just like CHAR_BIT in <limits.h> but describes the target machine.
353 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
355 # Number of bits in a short or unsigned short for the target machine.
356 v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
357 # Number of bits in an int or unsigned int for the target machine.
358 v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
359 # Number of bits in a long or unsigned long for the target machine.
360 v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
361 # Number of bits in a long long or unsigned long long for the target
363 v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
364 # Alignment of a long long or unsigned long long for the target
366 v:int:long_long_align_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
368 # The ABI default bit-size and format for "half", "float", "double", and
369 # "long double". These bit/format pairs should eventually be combined
370 # into a single object. For the moment, just initialize them as a pair.
371 # Each format describes both the big and little endian layouts (if
374 v:int:half_bit:::16:2*TARGET_CHAR_BIT::0
375 v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format)
376 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
377 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
378 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
379 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
380 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
381 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
383 # For most targets, a pointer on the target and its representation as an
384 # address in GDB have the same size and "look the same". For such a
385 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
386 # / addr_bit will be set from it.
388 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
389 # also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
390 # gdbarch_address_to_pointer as well.
392 # ptr_bit is the size of a pointer on the target
393 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
394 # addr_bit is the size of a target address as represented in gdb
395 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
397 # dwarf2_addr_size is the target address size as used in the Dwarf debug
398 # info. For .debug_frame FDEs, this is supposed to be the target address
399 # size from the associated CU header, and which is equivalent to the
400 # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
401 # Unfortunately there is no good way to determine this value. Therefore
402 # dwarf2_addr_size simply defaults to the target pointer size.
404 # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
405 # defined using the target's pointer size so far.
407 # Note that dwarf2_addr_size only needs to be redefined by a target if the
408 # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
409 # and if Dwarf versions < 4 need to be supported.
410 v:int:dwarf2_addr_size:::sizeof (void*):0:gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT:
412 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
413 v:int:char_signed:::1:-1:1
415 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
416 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
417 # Function for getting target's idea of a frame pointer. FIXME: GDB's
418 # whole scheme for dealing with "frames" and "frame pointers" needs a
420 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
422 M:enum register_status:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
423 # Read a register into a new struct value. If the register is wholly
424 # or partly unavailable, this should call mark_value_bytes_unavailable
425 # as appropriate. If this is defined, then pseudo_register_read will
427 M:struct value *:pseudo_register_read_value:struct regcache *regcache, int cookednum:regcache, cookednum
428 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
430 v:int:num_regs:::0:-1
431 # This macro gives the number of pseudo-registers that live in the
432 # register namespace but do not get fetched or stored on the target.
433 # These pseudo-registers may be aliases for other registers,
434 # combinations of other registers, or they may be computed by GDB.
435 v:int:num_pseudo_regs:::0:0::0
437 # Assemble agent expression bytecode to collect pseudo-register REG.
438 # Return -1 if something goes wrong, 0 otherwise.
439 M:int:ax_pseudo_register_collect:struct agent_expr *ax, int reg:ax, reg
441 # Assemble agent expression bytecode to push the value of pseudo-register
442 # REG on the interpreter stack.
443 # Return -1 if something goes wrong, 0 otherwise.
444 M:int:ax_pseudo_register_push_stack:struct agent_expr *ax, int reg:ax, reg
446 # GDB's standard (or well known) register numbers. These can map onto
447 # a real register or a pseudo (computed) register or not be defined at
449 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
450 v:int:sp_regnum:::-1:-1::0
451 v:int:pc_regnum:::-1:-1::0
452 v:int:ps_regnum:::-1:-1::0
453 v:int:fp0_regnum:::0:-1::0
454 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
455 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
456 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
457 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
458 # Convert from an sdb register number to an internal gdb register number.
459 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
460 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
461 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
462 m:const char *:register_name:int regnr:regnr::0
464 # Return the type of a register specified by the architecture. Only
465 # the register cache should call this function directly; others should
466 # use "register_type".
467 M:struct type *:register_type:int reg_nr:reg_nr
469 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
470 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
471 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
472 # deprecated_fp_regnum.
473 v:int:deprecated_fp_regnum:::-1:-1::0
475 # See gdbint.texinfo. See infcall.c.
476 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
477 v:int:call_dummy_location::::AT_ENTRY_POINT::0
478 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
480 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
481 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
482 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
483 # MAP a GDB RAW register number onto a simulator register number. See
484 # also include/...-sim.h.
485 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
486 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
487 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
488 # setjmp/longjmp support.
489 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
491 v:int:believe_pcc_promotion:::::::
493 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
494 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
495 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
496 # Construct a value representing the contents of register REGNUM in
497 # frame FRAME, interpreted as type TYPE. The routine needs to
498 # allocate and return a struct value with all value attributes
499 # (but not the value contents) filled in.
500 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
502 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
503 m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
504 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
506 # Return the return-value convention that will be used by FUNCTYPE
507 # to return a value of type VALTYPE. FUNCTYPE may be NULL in which
508 # case the return convention is computed based only on VALTYPE.
510 # If READBUF is not NULL, extract the return value and save it in this buffer.
512 # If WRITEBUF is not NULL, it contains a return value which will be
513 # stored into the appropriate register. This can be used when we want
514 # to force the value returned by a function (see the "return" command
516 M:enum return_value_convention:return_value:struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:functype, valtype, regcache, readbuf, writebuf
518 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
519 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
520 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
521 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
522 # Return the adjusted address and kind to use for Z0/Z1 packets.
523 # KIND is usually the memory length of the breakpoint, but may have a
524 # different target-specific meaning.
525 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
526 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
527 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
528 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
529 v:CORE_ADDR:decr_pc_after_break:::0:::0
531 # A function can be addressed by either it's "pointer" (possibly a
532 # descriptor address) or "entry point" (first executable instruction).
533 # The method "convert_from_func_ptr_addr" converting the former to the
534 # latter. gdbarch_deprecated_function_start_offset is being used to implement
535 # a simplified subset of that functionality - the function's address
536 # corresponds to the "function pointer" and the function's start
537 # corresponds to the "function entry point" - and hence is redundant.
539 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
541 # Return the remote protocol register number associated with this
542 # register. Normally the identity mapping.
543 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
545 # Fetch the target specific address used to represent a load module.
546 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
548 v:CORE_ADDR:frame_args_skip:::0:::0
549 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
550 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
551 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
552 # frame-base. Enable frame-base before frame-unwind.
553 F:int:frame_num_args:struct frame_info *frame:frame
555 M:CORE_ADDR:frame_align:CORE_ADDR address:address
556 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
557 v:int:frame_red_zone_size
559 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
560 # On some machines there are bits in addresses which are not really
561 # part of the address, but are used by the kernel, the hardware, etc.
562 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
563 # we get a "real" address such as one would find in a symbol table.
564 # This is used only for addresses of instructions, and even then I'm
565 # not sure it's used in all contexts. It exists to deal with there
566 # being a few stray bits in the PC which would mislead us, not as some
567 # sort of generic thing to handle alignment or segmentation (it's
568 # possible it should be in TARGET_READ_PC instead).
569 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
570 # It is not at all clear why gdbarch_smash_text_address is not folded into
571 # gdbarch_addr_bits_remove.
572 m:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
574 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
575 # indicates if the target needs software single step. An ISA method to
578 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
579 # breakpoints using the breakpoint system instead of blatting memory directly
582 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
583 # target can single step. If not, then implement single step using breakpoints.
585 # A return value of 1 means that the software_single_step breakpoints
586 # were inserted; 0 means they were not.
587 F:int:software_single_step:struct frame_info *frame:frame
589 # Return non-zero if the processor is executing a delay slot and a
590 # further single-step is needed before the instruction finishes.
591 M:int:single_step_through_delay:struct frame_info *frame:frame
592 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
593 # disassembler. Perhaps objdump can handle it?
594 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
595 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
598 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
599 # evaluates non-zero, this is the address where the debugger will place
600 # a step-resume breakpoint to get us past the dynamic linker.
601 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
602 # Some systems also have trampoline code for returning from shared libs.
603 m:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
605 # A target might have problems with watchpoints as soon as the stack
606 # frame of the current function has been destroyed. This mostly happens
607 # as the first action in a funtion's epilogue. in_function_epilogue_p()
608 # is defined to return a non-zero value if either the given addr is one
609 # instruction after the stack destroying instruction up to the trailing
610 # return instruction or if we can figure out that the stack frame has
611 # already been invalidated regardless of the value of addr. Targets
612 # which don't suffer from that problem could just let this functionality
614 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
615 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
616 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
617 v:int:cannot_step_breakpoint:::0:0::0
618 v:int:have_nonsteppable_watchpoint:::0:0::0
619 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
620 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
621 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
622 # Is a register in a group
623 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
624 # Fetch the pointer to the ith function argument.
625 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
627 # Return the appropriate register set for a core file section with
628 # name SECT_NAME and size SECT_SIZE.
629 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
631 # Supported register notes in a core file.
632 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
634 # Create core file notes
635 M:char *:make_corefile_notes:bfd *obfd, int *note_size:obfd, note_size
637 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
638 # core file into buffer READBUF with length LEN.
639 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
641 # How the core target converts a PTID from a core file to a string.
642 M:char *:core_pid_to_str:ptid_t ptid:ptid
644 # BFD target to use when generating a core file.
645 V:const char *:gcore_bfd_target:::0:0:::pstring (gdbarch->gcore_bfd_target)
647 # If the elements of C++ vtables are in-place function descriptors rather
648 # than normal function pointers (which may point to code or a descriptor),
650 v:int:vtable_function_descriptors:::0:0::0
652 # Set if the least significant bit of the delta is used instead of the least
653 # significant bit of the pfn for pointers to virtual member functions.
654 v:int:vbit_in_delta:::0:0::0
656 # Advance PC to next instruction in order to skip a permanent breakpoint.
657 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
659 # The maximum length of an instruction on this architecture in bytes.
660 V:ULONGEST:max_insn_length:::0:0
662 # Copy the instruction at FROM to TO, and make any adjustments
663 # necessary to single-step it at that address.
665 # REGS holds the state the thread's registers will have before
666 # executing the copied instruction; the PC in REGS will refer to FROM,
667 # not the copy at TO. The caller should update it to point at TO later.
669 # Return a pointer to data of the architecture's choice to be passed
670 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
671 # the instruction's effects have been completely simulated, with the
672 # resulting state written back to REGS.
674 # For a general explanation of displaced stepping and how GDB uses it,
675 # see the comments in infrun.c.
677 # The TO area is only guaranteed to have space for
678 # gdbarch_max_insn_length (arch) bytes, so this function must not
679 # write more bytes than that to that area.
681 # If you do not provide this function, GDB assumes that the
682 # architecture does not support displaced stepping.
684 # If your architecture doesn't need to adjust instructions before
685 # single-stepping them, consider using simple_displaced_step_copy_insn
687 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
689 # Return true if GDB should use hardware single-stepping to execute
690 # the displaced instruction identified by CLOSURE. If false,
691 # GDB will simply restart execution at the displaced instruction
692 # location, and it is up to the target to ensure GDB will receive
693 # control again (e.g. by placing a software breakpoint instruction
694 # into the displaced instruction buffer).
696 # The default implementation returns false on all targets that
697 # provide a gdbarch_software_single_step routine, and true otherwise.
698 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
700 # Fix up the state resulting from successfully single-stepping a
701 # displaced instruction, to give the result we would have gotten from
702 # stepping the instruction in its original location.
704 # REGS is the register state resulting from single-stepping the
705 # displaced instruction.
707 # CLOSURE is the result from the matching call to
708 # gdbarch_displaced_step_copy_insn.
710 # If you provide gdbarch_displaced_step_copy_insn.but not this
711 # function, then GDB assumes that no fixup is needed after
712 # single-stepping the instruction.
714 # For a general explanation of displaced stepping and how GDB uses it,
715 # see the comments in infrun.c.
716 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
718 # Free a closure returned by gdbarch_displaced_step_copy_insn.
720 # If you provide gdbarch_displaced_step_copy_insn, you must provide
721 # this function as well.
723 # If your architecture uses closures that don't need to be freed, then
724 # you can use simple_displaced_step_free_closure here.
726 # For a general explanation of displaced stepping and how GDB uses it,
727 # see the comments in infrun.c.
728 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
730 # Return the address of an appropriate place to put displaced
731 # instructions while we step over them. There need only be one such
732 # place, since we're only stepping one thread over a breakpoint at a
735 # For a general explanation of displaced stepping and how GDB uses it,
736 # see the comments in infrun.c.
737 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
739 # Relocate an instruction to execute at a different address. OLDLOC
740 # is the address in the inferior memory where the instruction to
741 # relocate is currently at. On input, TO points to the destination
742 # where we want the instruction to be copied (and possibly adjusted)
743 # to. On output, it points to one past the end of the resulting
744 # instruction(s). The effect of executing the instruction at TO shall
745 # be the same as if executing it at FROM. For example, call
746 # instructions that implicitly push the return address on the stack
747 # should be adjusted to return to the instruction after OLDLOC;
748 # relative branches, and other PC-relative instructions need the
749 # offset adjusted; etc.
750 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
752 # Refresh overlay mapped state for section OSECT.
753 F:void:overlay_update:struct obj_section *osect:osect
755 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
757 # Handle special encoding of static variables in stabs debug info.
758 F:char *:static_transform_name:char *name:name
759 # Set if the address in N_SO or N_FUN stabs may be zero.
760 v:int:sofun_address_maybe_missing:::0:0::0
762 # Parse the instruction at ADDR storing in the record execution log
763 # the registers REGCACHE and memory ranges that will be affected when
764 # the instruction executes, along with their current values.
765 # Return -1 if something goes wrong, 0 otherwise.
766 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
768 # Save process state after a signal.
769 # Return -1 if something goes wrong, 0 otherwise.
770 M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
772 # Signal translation: translate inferior's signal (host's) number into
773 # GDB's representation.
774 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
775 # Signal translation: translate GDB's signal number into inferior's host
777 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
779 # Extra signal info inspection.
781 # Return a type suitable to inspect extra signal information.
782 M:struct type *:get_siginfo_type:void:
784 # Record architecture-specific information from the symbol table.
785 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
787 # Function for the 'catch syscall' feature.
789 # Get architecture-specific system calls information from registers.
790 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
792 # True if the list of shared libraries is one and only for all
793 # processes, as opposed to a list of shared libraries per inferior.
794 # This usually means that all processes, although may or may not share
795 # an address space, will see the same set of symbols at the same
797 v:int:has_global_solist:::0:0::0
799 # On some targets, even though each inferior has its own private
800 # address space, the debug interface takes care of making breakpoints
801 # visible to all address spaces automatically. For such cases,
802 # this property should be set to true.
803 v:int:has_global_breakpoints:::0:0::0
805 # True if inferiors share an address space (e.g., uClinux).
806 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
808 # True if a fast tracepoint can be set at an address.
809 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
811 # Return the "auto" target charset.
812 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
813 # Return the "auto" target wide charset.
814 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
816 # If non-empty, this is a file extension that will be opened in place
817 # of the file extension reported by the shared library list.
819 # This is most useful for toolchains that use a post-linker tool,
820 # where the names of the files run on the target differ in extension
821 # compared to the names of the files GDB should load for debug info.
822 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
824 # If true, the target OS has DOS-based file system semantics. That
825 # is, absolute paths include a drive name, and the backslash is
826 # considered a directory separator.
827 v:int:has_dos_based_file_system:::0:0::0
829 # Generate bytecodes to collect the return address in a frame.
830 # Since the bytecodes run on the target, possibly with GDB not even
831 # connected, the full unwinding machinery is not available, and
832 # typically this function will issue bytecodes for one or more likely
833 # places that the return address may be found.
834 m:void:gen_return_address:struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope:ax, value, scope::default_gen_return_address::0
836 # Implement the "info proc" command.
837 M:void:info_proc:char *args, enum info_proc_what what:args, what
845 exec > new-gdbarch.log
846 function_list | while do_read
849 ${class} ${returntype} ${function} ($formal)
853 eval echo \"\ \ \ \ ${r}=\${${r}}\"
855 if class_is_predicate_p && fallback_default_p
857 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
861 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
863 echo "Error: postdefault is useless when invalid_p=0" 1>&2
867 if class_is_multiarch_p
869 if class_is_predicate_p ; then :
870 elif test "x${predefault}" = "x"
872 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
881 compare_new gdbarch.log
887 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
889 /* Dynamic architecture support for GDB, the GNU debugger.
891 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
892 2007, 2008, 2009 Free Software Foundation, Inc.
894 This file is part of GDB.
896 This program is free software; you can redistribute it and/or modify
897 it under the terms of the GNU General Public License as published by
898 the Free Software Foundation; either version 3 of the License, or
899 (at your option) any later version.
901 This program is distributed in the hope that it will be useful,
902 but WITHOUT ANY WARRANTY; without even the implied warranty of
903 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
904 GNU General Public License for more details.
906 You should have received a copy of the GNU General Public License
907 along with this program. If not, see <http://www.gnu.org/licenses/>. */
909 /* This file was created with the aid of \`\`gdbarch.sh''.
911 The Bourne shell script \`\`gdbarch.sh'' creates the files
912 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
913 against the existing \`\`gdbarch.[hc]''. Any differences found
916 If editing this file, please also run gdbarch.sh and merge any
917 changes into that script. Conversely, when making sweeping changes
918 to this file, modifying gdbarch.sh and using its output may prove
940 struct minimal_symbol;
944 struct disassemble_info;
947 struct bp_target_info;
949 struct displaced_step_closure;
950 struct core_regset_section;
955 /* The architecture associated with the connection to the target.
957 The architecture vector provides some information that is really
958 a property of the target: The layout of certain packets, for instance;
959 or the solib_ops vector. Etc. To differentiate architecture accesses
960 to per-target properties from per-thread/per-frame/per-objfile properties,
961 accesses to per-target properties should be made through target_gdbarch.
963 Eventually, when support for multiple targets is implemented in
964 GDB, this global should be made target-specific. */
965 extern struct gdbarch *target_gdbarch;
971 printf "/* The following are pre-initialized by GDBARCH. */\n"
972 function_list | while do_read
977 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
978 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
985 printf "/* The following are initialized by the target dependent code. */\n"
986 function_list | while do_read
988 if [ -n "${comment}" ]
990 echo "${comment}" | sed \
996 if class_is_predicate_p
999 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
1001 if class_is_variable_p
1004 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1005 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
1007 if class_is_function_p
1010 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
1012 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
1013 elif class_is_multiarch_p
1015 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1017 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1019 if [ "x${formal}" = "xvoid" ]
1021 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1023 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1025 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1032 /* Definition for an unknown syscall, used basically in error-cases. */
1033 #define UNKNOWN_SYSCALL (-1)
1035 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1038 /* Mechanism for co-ordinating the selection of a specific
1041 GDB targets (*-tdep.c) can register an interest in a specific
1042 architecture. Other GDB components can register a need to maintain
1043 per-architecture data.
1045 The mechanisms below ensures that there is only a loose connection
1046 between the set-architecture command and the various GDB
1047 components. Each component can independently register their need
1048 to maintain architecture specific data with gdbarch.
1052 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1055 The more traditional mega-struct containing architecture specific
1056 data for all the various GDB components was also considered. Since
1057 GDB is built from a variable number of (fairly independent)
1058 components it was determined that the global aproach was not
1062 /* Register a new architectural family with GDB.
1064 Register support for the specified ARCHITECTURE with GDB. When
1065 gdbarch determines that the specified architecture has been
1066 selected, the corresponding INIT function is called.
1070 The INIT function takes two parameters: INFO which contains the
1071 information available to gdbarch about the (possibly new)
1072 architecture; ARCHES which is a list of the previously created
1073 \`\`struct gdbarch'' for this architecture.
1075 The INFO parameter is, as far as possible, be pre-initialized with
1076 information obtained from INFO.ABFD or the global defaults.
1078 The ARCHES parameter is a linked list (sorted most recently used)
1079 of all the previously created architures for this architecture
1080 family. The (possibly NULL) ARCHES->gdbarch can used to access
1081 values from the previously selected architecture for this
1082 architecture family.
1084 The INIT function shall return any of: NULL - indicating that it
1085 doesn't recognize the selected architecture; an existing \`\`struct
1086 gdbarch'' from the ARCHES list - indicating that the new
1087 architecture is just a synonym for an earlier architecture (see
1088 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1089 - that describes the selected architecture (see gdbarch_alloc()).
1091 The DUMP_TDEP function shall print out all target specific values.
1092 Care should be taken to ensure that the function works in both the
1093 multi-arch and non- multi-arch cases. */
1097 struct gdbarch *gdbarch;
1098 struct gdbarch_list *next;
1103 /* Use default: NULL (ZERO). */
1104 const struct bfd_arch_info *bfd_arch_info;
1106 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1109 int byte_order_for_code;
1111 /* Use default: NULL (ZERO). */
1114 /* Use default: NULL (ZERO). */
1115 struct gdbarch_tdep_info *tdep_info;
1117 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1118 enum gdb_osabi osabi;
1120 /* Use default: NULL (ZERO). */
1121 const struct target_desc *target_desc;
1124 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1125 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1127 /* DEPRECATED - use gdbarch_register() */
1128 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1130 extern void gdbarch_register (enum bfd_architecture architecture,
1131 gdbarch_init_ftype *,
1132 gdbarch_dump_tdep_ftype *);
1135 /* Return a freshly allocated, NULL terminated, array of the valid
1136 architecture names. Since architectures are registered during the
1137 _initialize phase this function only returns useful information
1138 once initialization has been completed. */
1140 extern const char **gdbarch_printable_names (void);
1143 /* Helper function. Search the list of ARCHES for a GDBARCH that
1144 matches the information provided by INFO. */
1146 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1149 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1150 basic initialization using values obtained from the INFO and TDEP
1151 parameters. set_gdbarch_*() functions are called to complete the
1152 initialization of the object. */
1154 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1157 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1158 It is assumed that the caller freeds the \`\`struct
1161 extern void gdbarch_free (struct gdbarch *);
1164 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1165 obstack. The memory is freed when the corresponding architecture
1168 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1169 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1170 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1173 /* Helper function. Force an update of the current architecture.
1175 The actual architecture selected is determined by INFO, \`\`(gdb) set
1176 architecture'' et.al., the existing architecture and BFD's default
1177 architecture. INFO should be initialized to zero and then selected
1178 fields should be updated.
1180 Returns non-zero if the update succeeds. */
1182 extern int gdbarch_update_p (struct gdbarch_info info);
1185 /* Helper function. Find an architecture matching info.
1187 INFO should be initialized using gdbarch_info_init, relevant fields
1188 set, and then finished using gdbarch_info_fill.
1190 Returns the corresponding architecture, or NULL if no matching
1191 architecture was found. */
1193 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1196 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1198 FIXME: kettenis/20031124: Of the functions that follow, only
1199 gdbarch_from_bfd is supposed to survive. The others will
1200 dissappear since in the future GDB will (hopefully) be truly
1201 multi-arch. However, for now we're still stuck with the concept of
1202 a single active architecture. */
1204 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1207 /* Register per-architecture data-pointer.
1209 Reserve space for a per-architecture data-pointer. An identifier
1210 for the reserved data-pointer is returned. That identifer should
1211 be saved in a local static variable.
1213 Memory for the per-architecture data shall be allocated using
1214 gdbarch_obstack_zalloc. That memory will be deleted when the
1215 corresponding architecture object is deleted.
1217 When a previously created architecture is re-selected, the
1218 per-architecture data-pointer for that previous architecture is
1219 restored. INIT() is not re-called.
1221 Multiple registrarants for any architecture are allowed (and
1222 strongly encouraged). */
1224 struct gdbarch_data;
1226 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1227 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1228 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1229 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1230 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1231 struct gdbarch_data *data,
1234 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1237 /* Set the dynamic target-system-dependent parameters (architecture,
1238 byte-order, ...) using information found in the BFD. */
1240 extern void set_gdbarch_from_file (bfd *);
1243 /* Initialize the current architecture to the "first" one we find on
1246 extern void initialize_current_architecture (void);
1248 /* gdbarch trace variable */
1249 extern int gdbarch_debug;
1251 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1256 #../move-if-change new-gdbarch.h gdbarch.h
1257 compare_new gdbarch.h
1264 exec > new-gdbarch.c
1269 #include "arch-utils.h"
1272 #include "inferior.h"
1275 #include "floatformat.h"
1277 #include "gdb_assert.h"
1278 #include "gdb_string.h"
1279 #include "reggroups.h"
1281 #include "gdb_obstack.h"
1282 #include "observer.h"
1283 #include "regcache.h"
1285 /* Static function declarations */
1287 static void alloc_gdbarch_data (struct gdbarch *);
1289 /* Non-zero if we want to trace architecture code. */
1291 #ifndef GDBARCH_DEBUG
1292 #define GDBARCH_DEBUG 0
1294 int gdbarch_debug = GDBARCH_DEBUG;
1296 show_gdbarch_debug (struct ui_file *file, int from_tty,
1297 struct cmd_list_element *c, const char *value)
1299 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1303 pformat (const struct floatformat **format)
1308 /* Just print out one of them - this is only for diagnostics. */
1309 return format[0]->name;
1313 pstring (const char *string)
1322 # gdbarch open the gdbarch object
1324 printf "/* Maintain the struct gdbarch object. */\n"
1326 printf "struct gdbarch\n"
1328 printf " /* Has this architecture been fully initialized? */\n"
1329 printf " int initialized_p;\n"
1331 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1332 printf " struct obstack *obstack;\n"
1334 printf " /* basic architectural information. */\n"
1335 function_list | while do_read
1339 printf " ${returntype} ${function};\n"
1343 printf " /* target specific vector. */\n"
1344 printf " struct gdbarch_tdep *tdep;\n"
1345 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1347 printf " /* per-architecture data-pointers. */\n"
1348 printf " unsigned nr_data;\n"
1349 printf " void **data;\n"
1351 printf " /* per-architecture swap-regions. */\n"
1352 printf " struct gdbarch_swap *swap;\n"
1355 /* Multi-arch values.
1357 When extending this structure you must:
1359 Add the field below.
1361 Declare set/get functions and define the corresponding
1364 gdbarch_alloc(): If zero/NULL is not a suitable default,
1365 initialize the new field.
1367 verify_gdbarch(): Confirm that the target updated the field
1370 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1373 \`\`startup_gdbarch()'': Append an initial value to the static
1374 variable (base values on the host's c-type system).
1376 get_gdbarch(): Implement the set/get functions (probably using
1377 the macro's as shortcuts).
1382 function_list | while do_read
1384 if class_is_variable_p
1386 printf " ${returntype} ${function};\n"
1387 elif class_is_function_p
1389 printf " gdbarch_${function}_ftype *${function};\n"
1394 # A pre-initialized vector
1398 /* The default architecture uses host values (for want of a better
1402 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1404 printf "struct gdbarch startup_gdbarch =\n"
1406 printf " 1, /* Always initialized. */\n"
1407 printf " NULL, /* The obstack. */\n"
1408 printf " /* basic architecture information. */\n"
1409 function_list | while do_read
1413 printf " ${staticdefault}, /* ${function} */\n"
1417 /* target specific vector and its dump routine. */
1419 /*per-architecture data-pointers and swap regions. */
1421 /* Multi-arch values */
1423 function_list | while do_read
1425 if class_is_function_p || class_is_variable_p
1427 printf " ${staticdefault}, /* ${function} */\n"
1431 /* startup_gdbarch() */
1434 struct gdbarch *target_gdbarch = &startup_gdbarch;
1437 # Create a new gdbarch struct
1440 /* Create a new \`\`struct gdbarch'' based on information provided by
1441 \`\`struct gdbarch_info''. */
1446 gdbarch_alloc (const struct gdbarch_info *info,
1447 struct gdbarch_tdep *tdep)
1449 struct gdbarch *gdbarch;
1451 /* Create an obstack for allocating all the per-architecture memory,
1452 then use that to allocate the architecture vector. */
1453 struct obstack *obstack = XMALLOC (struct obstack);
1454 obstack_init (obstack);
1455 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1456 memset (gdbarch, 0, sizeof (*gdbarch));
1457 gdbarch->obstack = obstack;
1459 alloc_gdbarch_data (gdbarch);
1461 gdbarch->tdep = tdep;
1464 function_list | while do_read
1468 printf " gdbarch->${function} = info->${function};\n"
1472 printf " /* Force the explicit initialization of these. */\n"
1473 function_list | while do_read
1475 if class_is_function_p || class_is_variable_p
1477 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1479 printf " gdbarch->${function} = ${predefault};\n"
1484 /* gdbarch_alloc() */
1490 # Free a gdbarch struct.
1494 /* Allocate extra space using the per-architecture obstack. */
1497 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1499 void *data = obstack_alloc (arch->obstack, size);
1501 memset (data, 0, size);
1506 /* Free a gdbarch struct. This should never happen in normal
1507 operation --- once you've created a gdbarch, you keep it around.
1508 However, if an architecture's init function encounters an error
1509 building the structure, it may need to clean up a partially
1510 constructed gdbarch. */
1513 gdbarch_free (struct gdbarch *arch)
1515 struct obstack *obstack;
1517 gdb_assert (arch != NULL);
1518 gdb_assert (!arch->initialized_p);
1519 obstack = arch->obstack;
1520 obstack_free (obstack, 0); /* Includes the ARCH. */
1525 # verify a new architecture
1529 /* Ensure that all values in a GDBARCH are reasonable. */
1532 verify_gdbarch (struct gdbarch *gdbarch)
1534 struct ui_file *log;
1535 struct cleanup *cleanups;
1539 log = mem_fileopen ();
1540 cleanups = make_cleanup_ui_file_delete (log);
1542 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1543 fprintf_unfiltered (log, "\n\tbyte-order");
1544 if (gdbarch->bfd_arch_info == NULL)
1545 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1546 /* Check those that need to be defined for the given multi-arch level. */
1548 function_list | while do_read
1550 if class_is_function_p || class_is_variable_p
1552 if [ "x${invalid_p}" = "x0" ]
1554 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1555 elif class_is_predicate_p
1557 printf " /* Skip verify of ${function}, has predicate. */\n"
1558 # FIXME: See do_read for potential simplification
1559 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1561 printf " if (${invalid_p})\n"
1562 printf " gdbarch->${function} = ${postdefault};\n"
1563 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1565 printf " if (gdbarch->${function} == ${predefault})\n"
1566 printf " gdbarch->${function} = ${postdefault};\n"
1567 elif [ -n "${postdefault}" ]
1569 printf " if (gdbarch->${function} == 0)\n"
1570 printf " gdbarch->${function} = ${postdefault};\n"
1571 elif [ -n "${invalid_p}" ]
1573 printf " if (${invalid_p})\n"
1574 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1575 elif [ -n "${predefault}" ]
1577 printf " if (gdbarch->${function} == ${predefault})\n"
1578 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1583 buf = ui_file_xstrdup (log, &length);
1584 make_cleanup (xfree, buf);
1586 internal_error (__FILE__, __LINE__,
1587 _("verify_gdbarch: the following are invalid ...%s"),
1589 do_cleanups (cleanups);
1593 # dump the structure
1597 /* Print out the details of the current architecture. */
1600 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1602 const char *gdb_nm_file = "<not-defined>";
1604 #if defined (GDB_NM_FILE)
1605 gdb_nm_file = GDB_NM_FILE;
1607 fprintf_unfiltered (file,
1608 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1611 function_list | sort -t: -k 3 | while do_read
1613 # First the predicate
1614 if class_is_predicate_p
1616 printf " fprintf_unfiltered (file,\n"
1617 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1618 printf " gdbarch_${function}_p (gdbarch));\n"
1620 # Print the corresponding value.
1621 if class_is_function_p
1623 printf " fprintf_unfiltered (file,\n"
1624 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1625 printf " host_address_to_string (gdbarch->${function}));\n"
1628 case "${print}:${returntype}" in
1631 print="core_addr_to_string_nz (gdbarch->${function})"
1635 print="plongest (gdbarch->${function})"
1641 printf " fprintf_unfiltered (file,\n"
1642 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1643 printf " ${print});\n"
1647 if (gdbarch->dump_tdep != NULL)
1648 gdbarch->dump_tdep (gdbarch, file);
1656 struct gdbarch_tdep *
1657 gdbarch_tdep (struct gdbarch *gdbarch)
1659 if (gdbarch_debug >= 2)
1660 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1661 return gdbarch->tdep;
1665 function_list | while do_read
1667 if class_is_predicate_p
1671 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1673 printf " gdb_assert (gdbarch != NULL);\n"
1674 printf " return ${predicate};\n"
1677 if class_is_function_p
1680 printf "${returntype}\n"
1681 if [ "x${formal}" = "xvoid" ]
1683 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1685 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1688 printf " gdb_assert (gdbarch != NULL);\n"
1689 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1690 if class_is_predicate_p && test -n "${predefault}"
1692 # Allow a call to a function with a predicate.
1693 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1695 printf " if (gdbarch_debug >= 2)\n"
1696 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1697 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1699 if class_is_multiarch_p
1706 if class_is_multiarch_p
1708 params="gdbarch, ${actual}"
1713 if [ "x${returntype}" = "xvoid" ]
1715 printf " gdbarch->${function} (${params});\n"
1717 printf " return gdbarch->${function} (${params});\n"
1722 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1723 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1725 printf " gdbarch->${function} = ${function};\n"
1727 elif class_is_variable_p
1730 printf "${returntype}\n"
1731 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1733 printf " gdb_assert (gdbarch != NULL);\n"
1734 if [ "x${invalid_p}" = "x0" ]
1736 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1737 elif [ -n "${invalid_p}" ]
1739 printf " /* Check variable is valid. */\n"
1740 printf " gdb_assert (!(${invalid_p}));\n"
1741 elif [ -n "${predefault}" ]
1743 printf " /* Check variable changed from pre-default. */\n"
1744 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1746 printf " if (gdbarch_debug >= 2)\n"
1747 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1748 printf " return gdbarch->${function};\n"
1752 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1753 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1755 printf " gdbarch->${function} = ${function};\n"
1757 elif class_is_info_p
1760 printf "${returntype}\n"
1761 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1763 printf " gdb_assert (gdbarch != NULL);\n"
1764 printf " if (gdbarch_debug >= 2)\n"
1765 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1766 printf " return gdbarch->${function};\n"
1771 # All the trailing guff
1775 /* Keep a registry of per-architecture data-pointers required by GDB
1782 gdbarch_data_pre_init_ftype *pre_init;
1783 gdbarch_data_post_init_ftype *post_init;
1786 struct gdbarch_data_registration
1788 struct gdbarch_data *data;
1789 struct gdbarch_data_registration *next;
1792 struct gdbarch_data_registry
1795 struct gdbarch_data_registration *registrations;
1798 struct gdbarch_data_registry gdbarch_data_registry =
1803 static struct gdbarch_data *
1804 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1805 gdbarch_data_post_init_ftype *post_init)
1807 struct gdbarch_data_registration **curr;
1809 /* Append the new registration. */
1810 for (curr = &gdbarch_data_registry.registrations;
1812 curr = &(*curr)->next);
1813 (*curr) = XMALLOC (struct gdbarch_data_registration);
1814 (*curr)->next = NULL;
1815 (*curr)->data = XMALLOC (struct gdbarch_data);
1816 (*curr)->data->index = gdbarch_data_registry.nr++;
1817 (*curr)->data->pre_init = pre_init;
1818 (*curr)->data->post_init = post_init;
1819 (*curr)->data->init_p = 1;
1820 return (*curr)->data;
1823 struct gdbarch_data *
1824 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1826 return gdbarch_data_register (pre_init, NULL);
1829 struct gdbarch_data *
1830 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1832 return gdbarch_data_register (NULL, post_init);
1835 /* Create/delete the gdbarch data vector. */
1838 alloc_gdbarch_data (struct gdbarch *gdbarch)
1840 gdb_assert (gdbarch->data == NULL);
1841 gdbarch->nr_data = gdbarch_data_registry.nr;
1842 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1845 /* Initialize the current value of the specified per-architecture
1849 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1850 struct gdbarch_data *data,
1853 gdb_assert (data->index < gdbarch->nr_data);
1854 gdb_assert (gdbarch->data[data->index] == NULL);
1855 gdb_assert (data->pre_init == NULL);
1856 gdbarch->data[data->index] = pointer;
1859 /* Return the current value of the specified per-architecture
1863 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1865 gdb_assert (data->index < gdbarch->nr_data);
1866 if (gdbarch->data[data->index] == NULL)
1868 /* The data-pointer isn't initialized, call init() to get a
1870 if (data->pre_init != NULL)
1871 /* Mid architecture creation: pass just the obstack, and not
1872 the entire architecture, as that way it isn't possible for
1873 pre-init code to refer to undefined architecture
1875 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1876 else if (gdbarch->initialized_p
1877 && data->post_init != NULL)
1878 /* Post architecture creation: pass the entire architecture
1879 (as all fields are valid), but be careful to also detect
1880 recursive references. */
1882 gdb_assert (data->init_p);
1884 gdbarch->data[data->index] = data->post_init (gdbarch);
1888 /* The architecture initialization hasn't completed - punt -
1889 hope that the caller knows what they are doing. Once
1890 deprecated_set_gdbarch_data has been initialized, this can be
1891 changed to an internal error. */
1893 gdb_assert (gdbarch->data[data->index] != NULL);
1895 return gdbarch->data[data->index];
1899 /* Keep a registry of the architectures known by GDB. */
1901 struct gdbarch_registration
1903 enum bfd_architecture bfd_architecture;
1904 gdbarch_init_ftype *init;
1905 gdbarch_dump_tdep_ftype *dump_tdep;
1906 struct gdbarch_list *arches;
1907 struct gdbarch_registration *next;
1910 static struct gdbarch_registration *gdbarch_registry = NULL;
1913 append_name (const char ***buf, int *nr, const char *name)
1915 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1921 gdbarch_printable_names (void)
1923 /* Accumulate a list of names based on the registed list of
1926 const char **arches = NULL;
1927 struct gdbarch_registration *rego;
1929 for (rego = gdbarch_registry;
1933 const struct bfd_arch_info *ap;
1934 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1936 internal_error (__FILE__, __LINE__,
1937 _("gdbarch_architecture_names: multi-arch unknown"));
1940 append_name (&arches, &nr_arches, ap->printable_name);
1945 append_name (&arches, &nr_arches, NULL);
1951 gdbarch_register (enum bfd_architecture bfd_architecture,
1952 gdbarch_init_ftype *init,
1953 gdbarch_dump_tdep_ftype *dump_tdep)
1955 struct gdbarch_registration **curr;
1956 const struct bfd_arch_info *bfd_arch_info;
1958 /* Check that BFD recognizes this architecture */
1959 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1960 if (bfd_arch_info == NULL)
1962 internal_error (__FILE__, __LINE__,
1963 _("gdbarch: Attempt to register "
1964 "unknown architecture (%d)"),
1967 /* Check that we haven't seen this architecture before. */
1968 for (curr = &gdbarch_registry;
1970 curr = &(*curr)->next)
1972 if (bfd_architecture == (*curr)->bfd_architecture)
1973 internal_error (__FILE__, __LINE__,
1974 _("gdbarch: Duplicate registration "
1975 "of architecture (%s)"),
1976 bfd_arch_info->printable_name);
1980 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1981 bfd_arch_info->printable_name,
1982 host_address_to_string (init));
1984 (*curr) = XMALLOC (struct gdbarch_registration);
1985 (*curr)->bfd_architecture = bfd_architecture;
1986 (*curr)->init = init;
1987 (*curr)->dump_tdep = dump_tdep;
1988 (*curr)->arches = NULL;
1989 (*curr)->next = NULL;
1993 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1994 gdbarch_init_ftype *init)
1996 gdbarch_register (bfd_architecture, init, NULL);
2000 /* Look for an architecture using gdbarch_info. */
2002 struct gdbarch_list *
2003 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2004 const struct gdbarch_info *info)
2006 for (; arches != NULL; arches = arches->next)
2008 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2010 if (info->byte_order != arches->gdbarch->byte_order)
2012 if (info->osabi != arches->gdbarch->osabi)
2014 if (info->target_desc != arches->gdbarch->target_desc)
2022 /* Find an architecture that matches the specified INFO. Create a new
2023 architecture if needed. Return that new architecture. */
2026 gdbarch_find_by_info (struct gdbarch_info info)
2028 struct gdbarch *new_gdbarch;
2029 struct gdbarch_registration *rego;
2031 /* Fill in missing parts of the INFO struct using a number of
2032 sources: "set ..."; INFOabfd supplied; and the global
2034 gdbarch_info_fill (&info);
2036 /* Must have found some sort of architecture. */
2037 gdb_assert (info.bfd_arch_info != NULL);
2041 fprintf_unfiltered (gdb_stdlog,
2042 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2043 (info.bfd_arch_info != NULL
2044 ? info.bfd_arch_info->printable_name
2046 fprintf_unfiltered (gdb_stdlog,
2047 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2049 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2050 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2052 fprintf_unfiltered (gdb_stdlog,
2053 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2054 info.osabi, gdbarch_osabi_name (info.osabi));
2055 fprintf_unfiltered (gdb_stdlog,
2056 "gdbarch_find_by_info: info.abfd %s\n",
2057 host_address_to_string (info.abfd));
2058 fprintf_unfiltered (gdb_stdlog,
2059 "gdbarch_find_by_info: info.tdep_info %s\n",
2060 host_address_to_string (info.tdep_info));
2063 /* Find the tdep code that knows about this architecture. */
2064 for (rego = gdbarch_registry;
2067 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2072 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2073 "No matching architecture\n");
2077 /* Ask the tdep code for an architecture that matches "info". */
2078 new_gdbarch = rego->init (info, rego->arches);
2080 /* Did the tdep code like it? No. Reject the change and revert to
2081 the old architecture. */
2082 if (new_gdbarch == NULL)
2085 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2086 "Target rejected architecture\n");
2090 /* Is this a pre-existing architecture (as determined by already
2091 being initialized)? Move it to the front of the architecture
2092 list (keeping the list sorted Most Recently Used). */
2093 if (new_gdbarch->initialized_p)
2095 struct gdbarch_list **list;
2096 struct gdbarch_list *this;
2098 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2099 "Previous architecture %s (%s) selected\n",
2100 host_address_to_string (new_gdbarch),
2101 new_gdbarch->bfd_arch_info->printable_name);
2102 /* Find the existing arch in the list. */
2103 for (list = ®o->arches;
2104 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2105 list = &(*list)->next);
2106 /* It had better be in the list of architectures. */
2107 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2110 (*list) = this->next;
2111 /* Insert THIS at the front. */
2112 this->next = rego->arches;
2113 rego->arches = this;
2118 /* It's a new architecture. */
2120 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2121 "New architecture %s (%s) selected\n",
2122 host_address_to_string (new_gdbarch),
2123 new_gdbarch->bfd_arch_info->printable_name);
2125 /* Insert the new architecture into the front of the architecture
2126 list (keep the list sorted Most Recently Used). */
2128 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2129 this->next = rego->arches;
2130 this->gdbarch = new_gdbarch;
2131 rego->arches = this;
2134 /* Check that the newly installed architecture is valid. Plug in
2135 any post init values. */
2136 new_gdbarch->dump_tdep = rego->dump_tdep;
2137 verify_gdbarch (new_gdbarch);
2138 new_gdbarch->initialized_p = 1;
2141 gdbarch_dump (new_gdbarch, gdb_stdlog);
2146 /* Make the specified architecture current. */
2149 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2151 gdb_assert (new_gdbarch != NULL);
2152 gdb_assert (new_gdbarch->initialized_p);
2153 target_gdbarch = new_gdbarch;
2154 observer_notify_architecture_changed (new_gdbarch);
2155 registers_changed ();
2158 extern void _initialize_gdbarch (void);
2161 _initialize_gdbarch (void)
2163 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2164 Set architecture debugging."), _("\\
2165 Show architecture debugging."), _("\\
2166 When non-zero, architecture debugging is enabled."),
2169 &setdebuglist, &showdebuglist);
2175 #../move-if-change new-gdbarch.c gdbarch.c
2176 compare_new gdbarch.c