3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
6 # 2008, 2009 Free Software Foundation, Inc.
8 # This file is part of GDB.
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 3 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 # Make certain that the script is not running in an internationalized
26 LC_ALL
=c
; export LC_ALL
34 echo "${file} missing? cp new-${file} ${file}" 1>&2
35 elif diff -u ${file} new-
${file}
37 echo "${file} unchanged" 1>&2
39 echo "${file} has changed? cp new-${file} ${file}" 1>&2
44 # Format of the input table
45 read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
53 if test "${line}" = ""
56 elif test "${line}" = "#" -a "${comment}" = ""
59 elif expr "${line}" : "#" > /dev
/null
65 # The semantics of IFS varies between different SH's. Some
66 # treat ``::' as three fields while some treat it as just too.
67 # Work around this by eliminating ``::'' ....
68 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
70 OFS
="${IFS}" ; IFS
="[:]"
71 eval read ${read} <<EOF
76 if test -n "${garbage_at_eol}"
78 echo "Garbage at end-of-line in ${line}" 1>&2
83 # .... and then going back through each field and strip out those
84 # that ended up with just that space character.
87 if eval test \"\
${${r}}\" = \"\
\"
94 m
) staticdefault
="${predefault}" ;;
95 M
) staticdefault
="0" ;;
96 * ) test "${staticdefault}" || staticdefault
=0 ;;
101 case "${invalid_p}" in
103 if test -n "${predefault}"
105 #invalid_p="gdbarch->${function} == ${predefault}"
106 predicate
="gdbarch->${function} != ${predefault}"
107 elif class_is_variable_p
109 predicate
="gdbarch->${function} != 0"
110 elif class_is_function_p
112 predicate
="gdbarch->${function} != NULL"
116 echo "Predicate function ${function} with invalid_p." 1>&2
123 # PREDEFAULT is a valid fallback definition of MEMBER when
124 # multi-arch is not enabled. This ensures that the
125 # default value, when multi-arch is the same as the
126 # default value when not multi-arch. POSTDEFAULT is
127 # always a valid definition of MEMBER as this again
128 # ensures consistency.
130 if [ -n "${postdefault}" ]
132 fallbackdefault
="${postdefault}"
133 elif [ -n "${predefault}" ]
135 fallbackdefault
="${predefault}"
140 #NOT YET: See gdbarch.log for basic verification of
155 fallback_default_p
()
157 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
158 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
161 class_is_variable_p
()
169 class_is_function_p
()
172 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
177 class_is_multiarch_p
()
185 class_is_predicate_p
()
188 *F
* |
*V
* |
*M
* ) true
;;
202 # dump out/verify the doco
212 # F -> function + predicate
213 # hiding a function + predicate to test function validity
216 # V -> variable + predicate
217 # hiding a variable + predicate to test variables validity
219 # hiding something from the ``struct info'' object
220 # m -> multi-arch function
221 # hiding a multi-arch function (parameterised with the architecture)
222 # M -> multi-arch function + predicate
223 # hiding a multi-arch function + predicate to test function validity
227 # For functions, the return type; for variables, the data type
231 # For functions, the member function name; for variables, the
232 # variable name. Member function names are always prefixed with
233 # ``gdbarch_'' for name-space purity.
237 # The formal argument list. It is assumed that the formal
238 # argument list includes the actual name of each list element.
239 # A function with no arguments shall have ``void'' as the
240 # formal argument list.
244 # The list of actual arguments. The arguments specified shall
245 # match the FORMAL list given above. Functions with out
246 # arguments leave this blank.
250 # To help with the GDB startup a static gdbarch object is
251 # created. STATICDEFAULT is the value to insert into that
252 # static gdbarch object. Since this a static object only
253 # simple expressions can be used.
255 # If STATICDEFAULT is empty, zero is used.
259 # An initial value to assign to MEMBER of the freshly
260 # malloc()ed gdbarch object. After initialization, the
261 # freshly malloc()ed object is passed to the target
262 # architecture code for further updates.
264 # If PREDEFAULT is empty, zero is used.
266 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
267 # INVALID_P are specified, PREDEFAULT will be used as the
268 # default for the non- multi-arch target.
270 # A zero PREDEFAULT function will force the fallback to call
273 # Variable declarations can refer to ``gdbarch'' which will
274 # contain the current architecture. Care should be taken.
278 # A value to assign to MEMBER of the new gdbarch object should
279 # the target architecture code fail to change the PREDEFAULT
282 # If POSTDEFAULT is empty, no post update is performed.
284 # If both INVALID_P and POSTDEFAULT are non-empty then
285 # INVALID_P will be used to determine if MEMBER should be
286 # changed to POSTDEFAULT.
288 # If a non-empty POSTDEFAULT and a zero INVALID_P are
289 # specified, POSTDEFAULT will be used as the default for the
290 # non- multi-arch target (regardless of the value of
293 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
295 # Variable declarations can refer to ``gdbarch'' which
296 # will contain the current architecture. Care should be
301 # A predicate equation that validates MEMBER. Non-zero is
302 # returned if the code creating the new architecture failed to
303 # initialize MEMBER or the initialized the member is invalid.
304 # If POSTDEFAULT is non-empty then MEMBER will be updated to
305 # that value. If POSTDEFAULT is empty then internal_error()
308 # If INVALID_P is empty, a check that MEMBER is no longer
309 # equal to PREDEFAULT is used.
311 # The expression ``0'' disables the INVALID_P check making
312 # PREDEFAULT a legitimate value.
314 # See also PREDEFAULT and POSTDEFAULT.
318 # An optional expression that convers MEMBER to a value
319 # suitable for formatting using %s.
321 # If PRINT is empty, core_addr_to_string_nz (for CORE_ADDR)
322 # or plongest (anything else) is used.
324 garbage_at_eol
) : ;;
326 # Catches stray fields.
329 echo "Bad field ${field}"
337 # See below (DOCO) for description of each field
339 i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name
341 i:int:byte_order:::BFD_ENDIAN_BIG
342 i:int:byte_order_for_code:::BFD_ENDIAN_BIG
344 i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
346 i:const struct target_desc *:target_desc:::::::host_address_to_string (gdbarch->target_desc)
348 # The bit byte-order has to do just with numbering of bits in debugging symbols
349 # and such. Conceptually, it's quite separate from byte/word byte order.
350 v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
352 # Number of bits in a char or unsigned char for the target machine.
353 # Just like CHAR_BIT in <limits.h> but describes the target machine.
354 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
356 # Number of bits in a short or unsigned short for the target machine.
357 v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
358 # Number of bits in an int or unsigned int for the target machine.
359 v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
360 # Number of bits in a long or unsigned long for the target machine.
361 v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
362 # Number of bits in a long long or unsigned long long for the target
364 v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
366 # The ABI default bit-size and format for "float", "double", and "long
367 # double". These bit/format pairs should eventually be combined into
368 # a single object. For the moment, just initialize them as a pair.
369 # Each format describes both the big and little endian layouts (if
372 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
373 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
374 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
375 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
376 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
377 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
379 # For most targets, a pointer on the target and its representation as an
380 # address in GDB have the same size and "look the same". For such a
381 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
382 # / addr_bit will be set from it.
384 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
385 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
388 # ptr_bit is the size of a pointer on the target
389 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
390 # addr_bit is the size of a target address as represented in gdb
391 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
393 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
394 v:int:char_signed:::1:-1:1
396 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
397 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
398 # Function for getting target's idea of a frame pointer. FIXME: GDB's
399 # whole scheme for dealing with "frames" and "frame pointers" needs a
401 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
403 M:void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
404 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
406 v:int:num_regs:::0:-1
407 # This macro gives the number of pseudo-registers that live in the
408 # register namespace but do not get fetched or stored on the target.
409 # These pseudo-registers may be aliases for other registers,
410 # combinations of other registers, or they may be computed by GDB.
411 v:int:num_pseudo_regs:::0:0::0
413 # GDB's standard (or well known) register numbers. These can map onto
414 # a real register or a pseudo (computed) register or not be defined at
416 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
417 v:int:sp_regnum:::-1:-1::0
418 v:int:pc_regnum:::-1:-1::0
419 v:int:ps_regnum:::-1:-1::0
420 v:int:fp0_regnum:::0:-1::0
421 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
422 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
423 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
424 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
425 # Convert from an sdb register number to an internal gdb register number.
426 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
427 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
428 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
429 m:const char *:register_name:int regnr:regnr::0
431 # Return the type of a register specified by the architecture. Only
432 # the register cache should call this function directly; others should
433 # use "register_type".
434 M:struct type *:register_type:int reg_nr:reg_nr
436 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
437 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
438 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
439 # deprecated_fp_regnum.
440 v:int:deprecated_fp_regnum:::-1:-1::0
442 # See gdbint.texinfo. See infcall.c.
443 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
444 v:int:call_dummy_location::::AT_ENTRY_POINT::0
445 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
447 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
448 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
449 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
450 # MAP a GDB RAW register number onto a simulator register number. See
451 # also include/...-sim.h.
452 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
453 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
454 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
455 # setjmp/longjmp support.
456 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
458 v:int:believe_pcc_promotion:::::::
460 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
461 f:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
462 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
463 # Construct a value representing the contents of register REGNUM in
464 # frame FRAME, interpreted as type TYPE. The routine needs to
465 # allocate and return a struct value with all value attributes
466 # (but not the value contents) filled in.
467 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
469 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
470 m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
471 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
473 # Return the return-value convention that will be used by FUNCTYPE
474 # to return a value of type VALTYPE. FUNCTYPE may be NULL in which
475 # case the return convention is computed based only on VALTYPE.
477 # If READBUF is not NULL, extract the return value and save it in this buffer.
479 # If WRITEBUF is not NULL, it contains a return value which will be
480 # stored into the appropriate register. This can be used when we want
481 # to force the value returned by a function (see the "return" command
483 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
485 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
486 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
487 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
488 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
489 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
490 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
491 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
492 v:CORE_ADDR:decr_pc_after_break:::0:::0
494 # A function can be addressed by either it's "pointer" (possibly a
495 # descriptor address) or "entry point" (first executable instruction).
496 # The method "convert_from_func_ptr_addr" converting the former to the
497 # latter. gdbarch_deprecated_function_start_offset is being used to implement
498 # a simplified subset of that functionality - the function's address
499 # corresponds to the "function pointer" and the function's start
500 # corresponds to the "function entry point" - and hence is redundant.
502 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
504 # Return the remote protocol register number associated with this
505 # register. Normally the identity mapping.
506 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
508 # Fetch the target specific address used to represent a load module.
509 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
511 v:CORE_ADDR:frame_args_skip:::0:::0
512 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
513 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
514 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
515 # frame-base. Enable frame-base before frame-unwind.
516 F:int:frame_num_args:struct frame_info *frame:frame
518 M:CORE_ADDR:frame_align:CORE_ADDR address:address
519 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
520 v:int:frame_red_zone_size
522 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
523 # On some machines there are bits in addresses which are not really
524 # part of the address, but are used by the kernel, the hardware, etc.
525 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
526 # we get a "real" address such as one would find in a symbol table.
527 # This is used only for addresses of instructions, and even then I'm
528 # not sure it's used in all contexts. It exists to deal with there
529 # being a few stray bits in the PC which would mislead us, not as some
530 # sort of generic thing to handle alignment or segmentation (it's
531 # possible it should be in TARGET_READ_PC instead).
532 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
533 # It is not at all clear why gdbarch_smash_text_address is not folded into
534 # gdbarch_addr_bits_remove.
535 m:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
537 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
538 # indicates if the target needs software single step. An ISA method to
541 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
542 # breakpoints using the breakpoint system instead of blatting memory directly
545 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
546 # target can single step. If not, then implement single step using breakpoints.
548 # A return value of 1 means that the software_single_step breakpoints
549 # were inserted; 0 means they were not.
550 F:int:software_single_step:struct frame_info *frame:frame
552 # Return non-zero if the processor is executing a delay slot and a
553 # further single-step is needed before the instruction finishes.
554 M:int:single_step_through_delay:struct frame_info *frame:frame
555 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
556 # disassembler. Perhaps objdump can handle it?
557 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
558 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
561 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
562 # evaluates non-zero, this is the address where the debugger will place
563 # a step-resume breakpoint to get us past the dynamic linker.
564 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
565 # Some systems also have trampoline code for returning from shared libs.
566 m:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
568 # A target might have problems with watchpoints as soon as the stack
569 # frame of the current function has been destroyed. This mostly happens
570 # as the first action in a funtion's epilogue. in_function_epilogue_p()
571 # is defined to return a non-zero value if either the given addr is one
572 # instruction after the stack destroying instruction up to the trailing
573 # return instruction or if we can figure out that the stack frame has
574 # already been invalidated regardless of the value of addr. Targets
575 # which don't suffer from that problem could just let this functionality
577 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
578 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
579 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
580 v:int:cannot_step_breakpoint:::0:0::0
581 v:int:have_nonsteppable_watchpoint:::0:0::0
582 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
583 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
584 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
585 # Is a register in a group
586 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
587 # Fetch the pointer to the ith function argument.
588 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
590 # Return the appropriate register set for a core file section with
591 # name SECT_NAME and size SECT_SIZE.
592 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
594 # When creating core dumps, some systems encode the PID in addition
595 # to the LWP id in core file register section names. In those cases, the
596 # "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID]. This setting
597 # is set to true for such architectures; false if "XXX" represents an LWP
598 # or thread id with no special encoding.
599 v:int:core_reg_section_encodes_pid:::0:0::0
601 # Supported register notes in a core file.
602 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
604 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
605 # core file into buffer READBUF with length LEN.
606 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
608 # How the core_stratum layer converts a PTID from a core file to a
610 M:char *:core_pid_to_str:ptid_t ptid:ptid
612 # BFD target to use when generating a core file.
613 V:const char *:gcore_bfd_target:::0:0:::gdbarch->gcore_bfd_target
615 # If the elements of C++ vtables are in-place function descriptors rather
616 # than normal function pointers (which may point to code or a descriptor),
618 v:int:vtable_function_descriptors:::0:0::0
620 # Set if the least significant bit of the delta is used instead of the least
621 # significant bit of the pfn for pointers to virtual member functions.
622 v:int:vbit_in_delta:::0:0::0
624 # Advance PC to next instruction in order to skip a permanent breakpoint.
625 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
627 # The maximum length of an instruction on this architecture.
628 V:ULONGEST:max_insn_length:::0:0
630 # Copy the instruction at FROM to TO, and make any adjustments
631 # necessary to single-step it at that address.
633 # REGS holds the state the thread's registers will have before
634 # executing the copied instruction; the PC in REGS will refer to FROM,
635 # not the copy at TO. The caller should update it to point at TO later.
637 # Return a pointer to data of the architecture's choice to be passed
638 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
639 # the instruction's effects have been completely simulated, with the
640 # resulting state written back to REGS.
642 # For a general explanation of displaced stepping and how GDB uses it,
643 # see the comments in infrun.c.
645 # The TO area is only guaranteed to have space for
646 # gdbarch_max_insn_length (arch) bytes, so this function must not
647 # write more bytes than that to that area.
649 # If you do not provide this function, GDB assumes that the
650 # architecture does not support displaced stepping.
652 # If your architecture doesn't need to adjust instructions before
653 # single-stepping them, consider using simple_displaced_step_copy_insn
655 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
657 # Fix up the state resulting from successfully single-stepping a
658 # displaced instruction, to give the result we would have gotten from
659 # stepping the instruction in its original location.
661 # REGS is the register state resulting from single-stepping the
662 # displaced instruction.
664 # CLOSURE is the result from the matching call to
665 # gdbarch_displaced_step_copy_insn.
667 # If you provide gdbarch_displaced_step_copy_insn.but not this
668 # function, then GDB assumes that no fixup is needed after
669 # single-stepping the instruction.
671 # For a general explanation of displaced stepping and how GDB uses it,
672 # see the comments in infrun.c.
673 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
675 # Free a closure returned by gdbarch_displaced_step_copy_insn.
677 # If you provide gdbarch_displaced_step_copy_insn, you must provide
678 # this function as well.
680 # If your architecture uses closures that don't need to be freed, then
681 # you can use simple_displaced_step_free_closure here.
683 # For a general explanation of displaced stepping and how GDB uses it,
684 # see the comments in infrun.c.
685 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
687 # Return the address of an appropriate place to put displaced
688 # instructions while we step over them. There need only be one such
689 # place, since we're only stepping one thread over a breakpoint at a
692 # For a general explanation of displaced stepping and how GDB uses it,
693 # see the comments in infrun.c.
694 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
696 # Refresh overlay mapped state for section OSECT.
697 F:void:overlay_update:struct obj_section *osect:osect
699 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
701 # Handle special encoding of static variables in stabs debug info.
702 F:char *:static_transform_name:char *name:name
703 # Set if the address in N_SO or N_FUN stabs may be zero.
704 v:int:sofun_address_maybe_missing:::0:0::0
706 # Parse the instruction at ADDR storing in the record execution log
707 # the registers REGCACHE and memory ranges that will be affected when
708 # the instruction executes, along with their current values.
709 # Return -1 if something goes wrong, 0 otherwise.
710 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
712 # Signal translation: translate inferior's signal (host's) number into
713 # GDB's representation.
714 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
715 # Signal translation: translate GDB's signal number into inferior's host
717 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
719 # Extra signal info inspection.
721 # Return a type suitable to inspect extra signal information.
722 M:struct type *:get_siginfo_type:void:
724 # Record architecture-specific information from the symbol table.
725 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
727 # True if the list of shared libraries is one and only for all
728 # processes, as opposed to a list of shared libraries per inferior.
729 # This usually means that all processes, although may or may not share
730 # an address space, will see the same set of symbols at the same
732 v:int:has_global_solist:::0:0::0
734 # On some targets, even though each inferior has its own private
735 # address space, the debug interface takes care of making breakpoints
736 # visible to all address spaces automatically. For such cases,
737 # this property should be set to true.
738 v:int:has_global_breakpoints:::0:0::0
745 exec > new-gdbarch.log
746 function_list |
while do_read
749 ${class} ${returntype} ${function} ($formal)
753 eval echo \"\ \ \ \
${r}=\
${${r}}\"
755 if class_is_predicate_p
&& fallback_default_p
757 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
761 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
763 echo "Error: postdefault is useless when invalid_p=0" 1>&2
767 if class_is_multiarch_p
769 if class_is_predicate_p
; then :
770 elif test "x${predefault}" = "x"
772 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
781 compare_new gdbarch.log
787 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
789 /* Dynamic architecture support for GDB, the GNU debugger.
791 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
792 Free Software Foundation, Inc.
794 This file is part of GDB.
796 This program is free software; you can redistribute it and/or modify
797 it under the terms of the GNU General Public License as published by
798 the Free Software Foundation; either version 3 of the License, or
799 (at your option) any later version.
801 This program is distributed in the hope that it will be useful,
802 but WITHOUT ANY WARRANTY; without even the implied warranty of
803 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
804 GNU General Public License for more details.
806 You should have received a copy of the GNU General Public License
807 along with this program. If not, see <http://www.gnu.org/licenses/>. */
809 /* This file was created with the aid of \`\`gdbarch.sh''.
811 The Bourne shell script \`\`gdbarch.sh'' creates the files
812 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
813 against the existing \`\`gdbarch.[hc]''. Any differences found
816 If editing this file, please also run gdbarch.sh and merge any
817 changes into that script. Conversely, when making sweeping changes
818 to this file, modifying gdbarch.sh and using its output may prove
840 struct minimal_symbol;
844 struct disassemble_info;
847 struct bp_target_info;
849 struct displaced_step_closure;
850 struct core_regset_section;
852 /* The architecture associated with the connection to the target.
854 The architecture vector provides some information that is really
855 a property of the target: The layout of certain packets, for instance;
856 or the solib_ops vector. Etc. To differentiate architecture accesses
857 to per-target properties from per-thread/per-frame/per-objfile properties,
858 accesses to per-target properties should be made through target_gdbarch.
860 Eventually, when support for multiple targets is implemented in
861 GDB, this global should be made target-specific. */
862 extern struct gdbarch *target_gdbarch;
868 printf "/* The following are pre-initialized by GDBARCH. */\n"
869 function_list |
while do_read
874 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
875 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
882 printf "/* The following are initialized by the target dependent code. */\n"
883 function_list |
while do_read
885 if [ -n "${comment}" ]
887 echo "${comment}" |
sed \
893 if class_is_predicate_p
896 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
898 if class_is_variable_p
901 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
902 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
904 if class_is_function_p
907 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
909 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
910 elif class_is_multiarch_p
912 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
914 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
916 if [ "x${formal}" = "xvoid" ]
918 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
920 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
922 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
929 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
932 /* Mechanism for co-ordinating the selection of a specific
935 GDB targets (*-tdep.c) can register an interest in a specific
936 architecture. Other GDB components can register a need to maintain
937 per-architecture data.
939 The mechanisms below ensures that there is only a loose connection
940 between the set-architecture command and the various GDB
941 components. Each component can independently register their need
942 to maintain architecture specific data with gdbarch.
946 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
949 The more traditional mega-struct containing architecture specific
950 data for all the various GDB components was also considered. Since
951 GDB is built from a variable number of (fairly independent)
952 components it was determined that the global aproach was not
956 /* Register a new architectural family with GDB.
958 Register support for the specified ARCHITECTURE with GDB. When
959 gdbarch determines that the specified architecture has been
960 selected, the corresponding INIT function is called.
964 The INIT function takes two parameters: INFO which contains the
965 information available to gdbarch about the (possibly new)
966 architecture; ARCHES which is a list of the previously created
967 \`\`struct gdbarch'' for this architecture.
969 The INFO parameter is, as far as possible, be pre-initialized with
970 information obtained from INFO.ABFD or the global defaults.
972 The ARCHES parameter is a linked list (sorted most recently used)
973 of all the previously created architures for this architecture
974 family. The (possibly NULL) ARCHES->gdbarch can used to access
975 values from the previously selected architecture for this
978 The INIT function shall return any of: NULL - indicating that it
979 doesn't recognize the selected architecture; an existing \`\`struct
980 gdbarch'' from the ARCHES list - indicating that the new
981 architecture is just a synonym for an earlier architecture (see
982 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
983 - that describes the selected architecture (see gdbarch_alloc()).
985 The DUMP_TDEP function shall print out all target specific values.
986 Care should be taken to ensure that the function works in both the
987 multi-arch and non- multi-arch cases. */
991 struct gdbarch *gdbarch;
992 struct gdbarch_list *next;
997 /* Use default: NULL (ZERO). */
998 const struct bfd_arch_info *bfd_arch_info;
1000 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1003 int byte_order_for_code;
1005 /* Use default: NULL (ZERO). */
1008 /* Use default: NULL (ZERO). */
1009 struct gdbarch_tdep_info *tdep_info;
1011 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1012 enum gdb_osabi osabi;
1014 /* Use default: NULL (ZERO). */
1015 const struct target_desc *target_desc;
1018 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1019 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1021 /* DEPRECATED - use gdbarch_register() */
1022 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1024 extern void gdbarch_register (enum bfd_architecture architecture,
1025 gdbarch_init_ftype *,
1026 gdbarch_dump_tdep_ftype *);
1029 /* Return a freshly allocated, NULL terminated, array of the valid
1030 architecture names. Since architectures are registered during the
1031 _initialize phase this function only returns useful information
1032 once initialization has been completed. */
1034 extern const char **gdbarch_printable_names (void);
1037 /* Helper function. Search the list of ARCHES for a GDBARCH that
1038 matches the information provided by INFO. */
1040 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1043 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1044 basic initialization using values obtained from the INFO and TDEP
1045 parameters. set_gdbarch_*() functions are called to complete the
1046 initialization of the object. */
1048 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1051 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1052 It is assumed that the caller freeds the \`\`struct
1055 extern void gdbarch_free (struct gdbarch *);
1058 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1059 obstack. The memory is freed when the corresponding architecture
1062 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1063 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1064 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1067 /* Helper function. Force an update of the current architecture.
1069 The actual architecture selected is determined by INFO, \`\`(gdb) set
1070 architecture'' et.al., the existing architecture and BFD's default
1071 architecture. INFO should be initialized to zero and then selected
1072 fields should be updated.
1074 Returns non-zero if the update succeeds */
1076 extern int gdbarch_update_p (struct gdbarch_info info);
1079 /* Helper function. Find an architecture matching info.
1081 INFO should be initialized using gdbarch_info_init, relevant fields
1082 set, and then finished using gdbarch_info_fill.
1084 Returns the corresponding architecture, or NULL if no matching
1085 architecture was found. */
1087 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1090 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1092 FIXME: kettenis/20031124: Of the functions that follow, only
1093 gdbarch_from_bfd is supposed to survive. The others will
1094 dissappear since in the future GDB will (hopefully) be truly
1095 multi-arch. However, for now we're still stuck with the concept of
1096 a single active architecture. */
1098 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1101 /* Register per-architecture data-pointer.
1103 Reserve space for a per-architecture data-pointer. An identifier
1104 for the reserved data-pointer is returned. That identifer should
1105 be saved in a local static variable.
1107 Memory for the per-architecture data shall be allocated using
1108 gdbarch_obstack_zalloc. That memory will be deleted when the
1109 corresponding architecture object is deleted.
1111 When a previously created architecture is re-selected, the
1112 per-architecture data-pointer for that previous architecture is
1113 restored. INIT() is not re-called.
1115 Multiple registrarants for any architecture are allowed (and
1116 strongly encouraged). */
1118 struct gdbarch_data;
1120 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1121 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1122 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1123 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1124 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1125 struct gdbarch_data *data,
1128 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1131 /* Set the dynamic target-system-dependent parameters (architecture,
1132 byte-order, ...) using information found in the BFD */
1134 extern void set_gdbarch_from_file (bfd *);
1137 /* Initialize the current architecture to the "first" one we find on
1140 extern void initialize_current_architecture (void);
1142 /* gdbarch trace variable */
1143 extern int gdbarch_debug;
1145 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1150 #../move-if-change new-gdbarch.h gdbarch.h
1151 compare_new gdbarch.h
1158 exec > new-gdbarch.c
1163 #include "arch-utils.h"
1166 #include "inferior.h"
1169 #include "floatformat.h"
1171 #include "gdb_assert.h"
1172 #include "gdb_string.h"
1173 #include "reggroups.h"
1175 #include "gdb_obstack.h"
1176 #include "observer.h"
1177 #include "regcache.h"
1179 /* Static function declarations */
1181 static void alloc_gdbarch_data (struct gdbarch *);
1183 /* Non-zero if we want to trace architecture code. */
1185 #ifndef GDBARCH_DEBUG
1186 #define GDBARCH_DEBUG 0
1188 int gdbarch_debug = GDBARCH_DEBUG;
1190 show_gdbarch_debug (struct ui_file *file, int from_tty,
1191 struct cmd_list_element *c, const char *value)
1193 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1197 pformat (const struct floatformat **format)
1202 /* Just print out one of them - this is only for diagnostics. */
1203 return format[0]->name;
1208 # gdbarch open the gdbarch object
1210 printf "/* Maintain the struct gdbarch object */\n"
1212 printf "struct gdbarch\n"
1214 printf " /* Has this architecture been fully initialized? */\n"
1215 printf " int initialized_p;\n"
1217 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1218 printf " struct obstack *obstack;\n"
1220 printf " /* basic architectural information */\n"
1221 function_list |
while do_read
1225 printf " ${returntype} ${function};\n"
1229 printf " /* target specific vector. */\n"
1230 printf " struct gdbarch_tdep *tdep;\n"
1231 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1233 printf " /* per-architecture data-pointers */\n"
1234 printf " unsigned nr_data;\n"
1235 printf " void **data;\n"
1237 printf " /* per-architecture swap-regions */\n"
1238 printf " struct gdbarch_swap *swap;\n"
1241 /* Multi-arch values.
1243 When extending this structure you must:
1245 Add the field below.
1247 Declare set/get functions and define the corresponding
1250 gdbarch_alloc(): If zero/NULL is not a suitable default,
1251 initialize the new field.
1253 verify_gdbarch(): Confirm that the target updated the field
1256 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1259 \`\`startup_gdbarch()'': Append an initial value to the static
1260 variable (base values on the host's c-type system).
1262 get_gdbarch(): Implement the set/get functions (probably using
1263 the macro's as shortcuts).
1268 function_list |
while do_read
1270 if class_is_variable_p
1272 printf " ${returntype} ${function};\n"
1273 elif class_is_function_p
1275 printf " gdbarch_${function}_ftype *${function};\n"
1280 # A pre-initialized vector
1284 /* The default architecture uses host values (for want of a better
1288 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1290 printf "struct gdbarch startup_gdbarch =\n"
1292 printf " 1, /* Always initialized. */\n"
1293 printf " NULL, /* The obstack. */\n"
1294 printf " /* basic architecture information */\n"
1295 function_list |
while do_read
1299 printf " ${staticdefault}, /* ${function} */\n"
1303 /* target specific vector and its dump routine */
1305 /*per-architecture data-pointers and swap regions */
1307 /* Multi-arch values */
1309 function_list |
while do_read
1311 if class_is_function_p || class_is_variable_p
1313 printf " ${staticdefault}, /* ${function} */\n"
1317 /* startup_gdbarch() */
1320 struct gdbarch *target_gdbarch = &startup_gdbarch;
1323 # Create a new gdbarch struct
1326 /* Create a new \`\`struct gdbarch'' based on information provided by
1327 \`\`struct gdbarch_info''. */
1332 gdbarch_alloc (const struct gdbarch_info *info,
1333 struct gdbarch_tdep *tdep)
1335 struct gdbarch *gdbarch;
1337 /* Create an obstack for allocating all the per-architecture memory,
1338 then use that to allocate the architecture vector. */
1339 struct obstack *obstack = XMALLOC (struct obstack);
1340 obstack_init (obstack);
1341 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1342 memset (gdbarch, 0, sizeof (*gdbarch));
1343 gdbarch->obstack = obstack;
1345 alloc_gdbarch_data (gdbarch);
1347 gdbarch->tdep = tdep;
1350 function_list |
while do_read
1354 printf " gdbarch->${function} = info->${function};\n"
1358 printf " /* Force the explicit initialization of these. */\n"
1359 function_list |
while do_read
1361 if class_is_function_p || class_is_variable_p
1363 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1365 printf " gdbarch->${function} = ${predefault};\n"
1370 /* gdbarch_alloc() */
1376 # Free a gdbarch struct.
1380 /* Allocate extra space using the per-architecture obstack. */
1383 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1385 void *data = obstack_alloc (arch->obstack, size);
1386 memset (data, 0, size);
1391 /* Free a gdbarch struct. This should never happen in normal
1392 operation --- once you've created a gdbarch, you keep it around.
1393 However, if an architecture's init function encounters an error
1394 building the structure, it may need to clean up a partially
1395 constructed gdbarch. */
1398 gdbarch_free (struct gdbarch *arch)
1400 struct obstack *obstack;
1401 gdb_assert (arch != NULL);
1402 gdb_assert (!arch->initialized_p);
1403 obstack = arch->obstack;
1404 obstack_free (obstack, 0); /* Includes the ARCH. */
1409 # verify a new architecture
1413 /* Ensure that all values in a GDBARCH are reasonable. */
1416 verify_gdbarch (struct gdbarch *gdbarch)
1418 struct ui_file *log;
1419 struct cleanup *cleanups;
1422 log = mem_fileopen ();
1423 cleanups = make_cleanup_ui_file_delete (log);
1425 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1426 fprintf_unfiltered (log, "\n\tbyte-order");
1427 if (gdbarch->bfd_arch_info == NULL)
1428 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1429 /* Check those that need to be defined for the given multi-arch level. */
1431 function_list |
while do_read
1433 if class_is_function_p || class_is_variable_p
1435 if [ "x${invalid_p}" = "x0" ]
1437 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1438 elif class_is_predicate_p
1440 printf " /* Skip verify of ${function}, has predicate */\n"
1441 # FIXME: See do_read for potential simplification
1442 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1444 printf " if (${invalid_p})\n"
1445 printf " gdbarch->${function} = ${postdefault};\n"
1446 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1448 printf " if (gdbarch->${function} == ${predefault})\n"
1449 printf " gdbarch->${function} = ${postdefault};\n"
1450 elif [ -n "${postdefault}" ]
1452 printf " if (gdbarch->${function} == 0)\n"
1453 printf " gdbarch->${function} = ${postdefault};\n"
1454 elif [ -n "${invalid_p}" ]
1456 printf " if (${invalid_p})\n"
1457 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1458 elif [ -n "${predefault}" ]
1460 printf " if (gdbarch->${function} == ${predefault})\n"
1461 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1466 buf = ui_file_xstrdup (log, &dummy);
1467 make_cleanup (xfree, buf);
1468 if (strlen (buf) > 0)
1469 internal_error (__FILE__, __LINE__,
1470 _("verify_gdbarch: the following are invalid ...%s"),
1472 do_cleanups (cleanups);
1476 # dump the structure
1480 /* Print out the details of the current architecture. */
1483 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1485 const char *gdb_nm_file = "<not-defined>";
1486 #if defined (GDB_NM_FILE)
1487 gdb_nm_file = GDB_NM_FILE;
1489 fprintf_unfiltered (file,
1490 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1493 function_list |
sort -t: -k 3 |
while do_read
1495 # First the predicate
1496 if class_is_predicate_p
1498 printf " fprintf_unfiltered (file,\n"
1499 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1500 printf " gdbarch_${function}_p (gdbarch));\n"
1502 # Print the corresponding value.
1503 if class_is_function_p
1505 printf " fprintf_unfiltered (file,\n"
1506 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1507 printf " host_address_to_string (gdbarch->${function}));\n"
1510 case "${print}:${returntype}" in
1513 print
="core_addr_to_string_nz (gdbarch->${function})"
1517 print
="plongest (gdbarch->${function})"
1523 printf " fprintf_unfiltered (file,\n"
1524 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1525 printf " ${print});\n"
1529 if (gdbarch->dump_tdep != NULL)
1530 gdbarch->dump_tdep (gdbarch, file);
1538 struct gdbarch_tdep *
1539 gdbarch_tdep (struct gdbarch *gdbarch)
1541 if (gdbarch_debug >= 2)
1542 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1543 return gdbarch->tdep;
1547 function_list |
while do_read
1549 if class_is_predicate_p
1553 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1555 printf " gdb_assert (gdbarch != NULL);\n"
1556 printf " return ${predicate};\n"
1559 if class_is_function_p
1562 printf "${returntype}\n"
1563 if [ "x${formal}" = "xvoid" ]
1565 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1567 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1570 printf " gdb_assert (gdbarch != NULL);\n"
1571 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1572 if class_is_predicate_p
&& test -n "${predefault}"
1574 # Allow a call to a function with a predicate.
1575 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1577 printf " if (gdbarch_debug >= 2)\n"
1578 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1579 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1581 if class_is_multiarch_p
1588 if class_is_multiarch_p
1590 params
="gdbarch, ${actual}"
1595 if [ "x${returntype}" = "xvoid" ]
1597 printf " gdbarch->${function} (${params});\n"
1599 printf " return gdbarch->${function} (${params});\n"
1604 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1605 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1607 printf " gdbarch->${function} = ${function};\n"
1609 elif class_is_variable_p
1612 printf "${returntype}\n"
1613 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1615 printf " gdb_assert (gdbarch != NULL);\n"
1616 if [ "x${invalid_p}" = "x0" ]
1618 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1619 elif [ -n "${invalid_p}" ]
1621 printf " /* Check variable is valid. */\n"
1622 printf " gdb_assert (!(${invalid_p}));\n"
1623 elif [ -n "${predefault}" ]
1625 printf " /* Check variable changed from pre-default. */\n"
1626 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1628 printf " if (gdbarch_debug >= 2)\n"
1629 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1630 printf " return gdbarch->${function};\n"
1634 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1635 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1637 printf " gdbarch->${function} = ${function};\n"
1639 elif class_is_info_p
1642 printf "${returntype}\n"
1643 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1645 printf " gdb_assert (gdbarch != NULL);\n"
1646 printf " if (gdbarch_debug >= 2)\n"
1647 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1648 printf " return gdbarch->${function};\n"
1653 # All the trailing guff
1657 /* Keep a registry of per-architecture data-pointers required by GDB
1664 gdbarch_data_pre_init_ftype *pre_init;
1665 gdbarch_data_post_init_ftype *post_init;
1668 struct gdbarch_data_registration
1670 struct gdbarch_data *data;
1671 struct gdbarch_data_registration *next;
1674 struct gdbarch_data_registry
1677 struct gdbarch_data_registration *registrations;
1680 struct gdbarch_data_registry gdbarch_data_registry =
1685 static struct gdbarch_data *
1686 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1687 gdbarch_data_post_init_ftype *post_init)
1689 struct gdbarch_data_registration **curr;
1690 /* Append the new registraration. */
1691 for (curr = &gdbarch_data_registry.registrations;
1693 curr = &(*curr)->next);
1694 (*curr) = XMALLOC (struct gdbarch_data_registration);
1695 (*curr)->next = NULL;
1696 (*curr)->data = XMALLOC (struct gdbarch_data);
1697 (*curr)->data->index = gdbarch_data_registry.nr++;
1698 (*curr)->data->pre_init = pre_init;
1699 (*curr)->data->post_init = post_init;
1700 (*curr)->data->init_p = 1;
1701 return (*curr)->data;
1704 struct gdbarch_data *
1705 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1707 return gdbarch_data_register (pre_init, NULL);
1710 struct gdbarch_data *
1711 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1713 return gdbarch_data_register (NULL, post_init);
1716 /* Create/delete the gdbarch data vector. */
1719 alloc_gdbarch_data (struct gdbarch *gdbarch)
1721 gdb_assert (gdbarch->data == NULL);
1722 gdbarch->nr_data = gdbarch_data_registry.nr;
1723 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1726 /* Initialize the current value of the specified per-architecture
1730 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1731 struct gdbarch_data *data,
1734 gdb_assert (data->index < gdbarch->nr_data);
1735 gdb_assert (gdbarch->data[data->index] == NULL);
1736 gdb_assert (data->pre_init == NULL);
1737 gdbarch->data[data->index] = pointer;
1740 /* Return the current value of the specified per-architecture
1744 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1746 gdb_assert (data->index < gdbarch->nr_data);
1747 if (gdbarch->data[data->index] == NULL)
1749 /* The data-pointer isn't initialized, call init() to get a
1751 if (data->pre_init != NULL)
1752 /* Mid architecture creation: pass just the obstack, and not
1753 the entire architecture, as that way it isn't possible for
1754 pre-init code to refer to undefined architecture
1756 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1757 else if (gdbarch->initialized_p
1758 && data->post_init != NULL)
1759 /* Post architecture creation: pass the entire architecture
1760 (as all fields are valid), but be careful to also detect
1761 recursive references. */
1763 gdb_assert (data->init_p);
1765 gdbarch->data[data->index] = data->post_init (gdbarch);
1769 /* The architecture initialization hasn't completed - punt -
1770 hope that the caller knows what they are doing. Once
1771 deprecated_set_gdbarch_data has been initialized, this can be
1772 changed to an internal error. */
1774 gdb_assert (gdbarch->data[data->index] != NULL);
1776 return gdbarch->data[data->index];
1780 /* Keep a registry of the architectures known by GDB. */
1782 struct gdbarch_registration
1784 enum bfd_architecture bfd_architecture;
1785 gdbarch_init_ftype *init;
1786 gdbarch_dump_tdep_ftype *dump_tdep;
1787 struct gdbarch_list *arches;
1788 struct gdbarch_registration *next;
1791 static struct gdbarch_registration *gdbarch_registry = NULL;
1794 append_name (const char ***buf, int *nr, const char *name)
1796 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1802 gdbarch_printable_names (void)
1804 /* Accumulate a list of names based on the registed list of
1806 enum bfd_architecture a;
1808 const char **arches = NULL;
1809 struct gdbarch_registration *rego;
1810 for (rego = gdbarch_registry;
1814 const struct bfd_arch_info *ap;
1815 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1817 internal_error (__FILE__, __LINE__,
1818 _("gdbarch_architecture_names: multi-arch unknown"));
1821 append_name (&arches, &nr_arches, ap->printable_name);
1826 append_name (&arches, &nr_arches, NULL);
1832 gdbarch_register (enum bfd_architecture bfd_architecture,
1833 gdbarch_init_ftype *init,
1834 gdbarch_dump_tdep_ftype *dump_tdep)
1836 struct gdbarch_registration **curr;
1837 const struct bfd_arch_info *bfd_arch_info;
1838 /* Check that BFD recognizes this architecture */
1839 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1840 if (bfd_arch_info == NULL)
1842 internal_error (__FILE__, __LINE__,
1843 _("gdbarch: Attempt to register unknown architecture (%d)"),
1846 /* Check that we haven't seen this architecture before */
1847 for (curr = &gdbarch_registry;
1849 curr = &(*curr)->next)
1851 if (bfd_architecture == (*curr)->bfd_architecture)
1852 internal_error (__FILE__, __LINE__,
1853 _("gdbarch: Duplicate registraration of architecture (%s)"),
1854 bfd_arch_info->printable_name);
1858 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1859 bfd_arch_info->printable_name,
1860 host_address_to_string (init));
1862 (*curr) = XMALLOC (struct gdbarch_registration);
1863 (*curr)->bfd_architecture = bfd_architecture;
1864 (*curr)->init = init;
1865 (*curr)->dump_tdep = dump_tdep;
1866 (*curr)->arches = NULL;
1867 (*curr)->next = NULL;
1871 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1872 gdbarch_init_ftype *init)
1874 gdbarch_register (bfd_architecture, init, NULL);
1878 /* Look for an architecture using gdbarch_info. */
1880 struct gdbarch_list *
1881 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1882 const struct gdbarch_info *info)
1884 for (; arches != NULL; arches = arches->next)
1886 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1888 if (info->byte_order != arches->gdbarch->byte_order)
1890 if (info->osabi != arches->gdbarch->osabi)
1892 if (info->target_desc != arches->gdbarch->target_desc)
1900 /* Find an architecture that matches the specified INFO. Create a new
1901 architecture if needed. Return that new architecture. */
1904 gdbarch_find_by_info (struct gdbarch_info info)
1906 struct gdbarch *new_gdbarch;
1907 struct gdbarch_registration *rego;
1909 /* Fill in missing parts of the INFO struct using a number of
1910 sources: "set ..."; INFOabfd supplied; and the global
1912 gdbarch_info_fill (&info);
1914 /* Must have found some sort of architecture. */
1915 gdb_assert (info.bfd_arch_info != NULL);
1919 fprintf_unfiltered (gdb_stdlog,
1920 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
1921 (info.bfd_arch_info != NULL
1922 ? info.bfd_arch_info->printable_name
1924 fprintf_unfiltered (gdb_stdlog,
1925 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
1927 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1928 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1930 fprintf_unfiltered (gdb_stdlog,
1931 "gdbarch_find_by_info: info.osabi %d (%s)\n",
1932 info.osabi, gdbarch_osabi_name (info.osabi));
1933 fprintf_unfiltered (gdb_stdlog,
1934 "gdbarch_find_by_info: info.abfd %s\n",
1935 host_address_to_string (info.abfd));
1936 fprintf_unfiltered (gdb_stdlog,
1937 "gdbarch_find_by_info: info.tdep_info %s\n",
1938 host_address_to_string (info.tdep_info));
1941 /* Find the tdep code that knows about this architecture. */
1942 for (rego = gdbarch_registry;
1945 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1950 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
1951 "No matching architecture\n");
1955 /* Ask the tdep code for an architecture that matches "info". */
1956 new_gdbarch = rego->init (info, rego->arches);
1958 /* Did the tdep code like it? No. Reject the change and revert to
1959 the old architecture. */
1960 if (new_gdbarch == NULL)
1963 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
1964 "Target rejected architecture\n");
1968 /* Is this a pre-existing architecture (as determined by already
1969 being initialized)? Move it to the front of the architecture
1970 list (keeping the list sorted Most Recently Used). */
1971 if (new_gdbarch->initialized_p)
1973 struct gdbarch_list **list;
1974 struct gdbarch_list *this;
1976 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
1977 "Previous architecture %s (%s) selected\n",
1978 host_address_to_string (new_gdbarch),
1979 new_gdbarch->bfd_arch_info->printable_name);
1980 /* Find the existing arch in the list. */
1981 for (list = ®o->arches;
1982 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
1983 list = &(*list)->next);
1984 /* It had better be in the list of architectures. */
1985 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
1988 (*list) = this->next;
1989 /* Insert THIS at the front. */
1990 this->next = rego->arches;
1991 rego->arches = this;
1996 /* It's a new architecture. */
1998 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
1999 "New architecture %s (%s) selected\n",
2000 host_address_to_string (new_gdbarch),
2001 new_gdbarch->bfd_arch_info->printable_name);
2003 /* Insert the new architecture into the front of the architecture
2004 list (keep the list sorted Most Recently Used). */
2006 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2007 this->next = rego->arches;
2008 this->gdbarch = new_gdbarch;
2009 rego->arches = this;
2012 /* Check that the newly installed architecture is valid. Plug in
2013 any post init values. */
2014 new_gdbarch->dump_tdep = rego->dump_tdep;
2015 verify_gdbarch (new_gdbarch);
2016 new_gdbarch->initialized_p = 1;
2019 gdbarch_dump (new_gdbarch, gdb_stdlog);
2024 /* Make the specified architecture current. */
2027 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2029 gdb_assert (new_gdbarch != NULL);
2030 gdb_assert (new_gdbarch->initialized_p);
2031 target_gdbarch = new_gdbarch;
2032 observer_notify_architecture_changed (new_gdbarch);
2033 registers_changed ();
2036 extern void _initialize_gdbarch (void);
2039 _initialize_gdbarch (void)
2041 struct cmd_list_element *c;
2043 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2044 Set architecture debugging."), _("\\
2045 Show architecture debugging."), _("\\
2046 When non-zero, architecture debugging is enabled."),
2049 &setdebuglist, &showdebuglist);
2055 #../move-if-change new-gdbarch.c gdbarch.c
2056 compare_new gdbarch.c