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 f:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
470 f: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 f: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 # If the elements of C++ vtables are in-place function descriptors rather
613 # than normal function pointers (which may point to code or a descriptor),
615 v:int:vtable_function_descriptors:::0:0::0
617 # Set if the least significant bit of the delta is used instead of the least
618 # significant bit of the pfn for pointers to virtual member functions.
619 v:int:vbit_in_delta:::0:0::0
621 # Advance PC to next instruction in order to skip a permanent breakpoint.
622 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
624 # The maximum length of an instruction on this architecture.
625 V:ULONGEST:max_insn_length:::0:0
627 # Copy the instruction at FROM to TO, and make any adjustments
628 # necessary to single-step it at that address.
630 # REGS holds the state the thread's registers will have before
631 # executing the copied instruction; the PC in REGS will refer to FROM,
632 # not the copy at TO. The caller should update it to point at TO later.
634 # Return a pointer to data of the architecture's choice to be passed
635 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
636 # the instruction's effects have been completely simulated, with the
637 # resulting state written back to REGS.
639 # For a general explanation of displaced stepping and how GDB uses it,
640 # see the comments in infrun.c.
642 # The TO area is only guaranteed to have space for
643 # gdbarch_max_insn_length (arch) bytes, so this function must not
644 # write more bytes than that to that area.
646 # If you do not provide this function, GDB assumes that the
647 # architecture does not support displaced stepping.
649 # If your architecture doesn't need to adjust instructions before
650 # single-stepping them, consider using simple_displaced_step_copy_insn
652 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
654 # Fix up the state resulting from successfully single-stepping a
655 # displaced instruction, to give the result we would have gotten from
656 # stepping the instruction in its original location.
658 # REGS is the register state resulting from single-stepping the
659 # displaced instruction.
661 # CLOSURE is the result from the matching call to
662 # gdbarch_displaced_step_copy_insn.
664 # If you provide gdbarch_displaced_step_copy_insn.but not this
665 # function, then GDB assumes that no fixup is needed after
666 # single-stepping the instruction.
668 # For a general explanation of displaced stepping and how GDB uses it,
669 # see the comments in infrun.c.
670 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
672 # Free a closure returned by gdbarch_displaced_step_copy_insn.
674 # If you provide gdbarch_displaced_step_copy_insn, you must provide
675 # this function as well.
677 # If your architecture uses closures that don't need to be freed, then
678 # you can use simple_displaced_step_free_closure here.
680 # For a general explanation of displaced stepping and how GDB uses it,
681 # see the comments in infrun.c.
682 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
684 # Return the address of an appropriate place to put displaced
685 # instructions while we step over them. There need only be one such
686 # place, since we're only stepping one thread over a breakpoint at a
689 # For a general explanation of displaced stepping and how GDB uses it,
690 # see the comments in infrun.c.
691 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
693 # Refresh overlay mapped state for section OSECT.
694 F:void:overlay_update:struct obj_section *osect:osect
696 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
698 # Handle special encoding of static variables in stabs debug info.
699 F:char *:static_transform_name:char *name:name
700 # Set if the address in N_SO or N_FUN stabs may be zero.
701 v:int:sofun_address_maybe_missing:::0:0::0
703 # Parse the instruction at ADDR storing in the record execution log
704 # the registers REGCACHE and memory ranges that will be affected when
705 # the instruction executes, along with their current values.
706 # Return -1 if something goes wrong, 0 otherwise.
707 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
709 # Signal translation: translate inferior's signal (host's) number into
710 # GDB's representation.
711 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
712 # Signal translation: translate GDB's signal number into inferior's host
714 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
716 # Extra signal info inspection.
718 # Return a type suitable to inspect extra signal information.
719 M:struct type *:get_siginfo_type:void:
721 # Record architecture-specific information from the symbol table.
722 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
724 # True if the list of shared libraries is one and only for all
725 # processes, as opposed to a list of shared libraries per inferior.
726 # This usually means that all processes, although may or may not share
727 # an address space, will see the same set of symbols at the same
729 v:int:has_global_solist:::0:0::0
731 # On some targets, even though each inferior has its own private
732 # address space, the debug interface takes care of making breakpoints
733 # visible to all address spaces automatically. For such cases,
734 # this property should be set to true.
735 v:int:has_global_breakpoints:::0:0::0
742 exec > new-gdbarch.log
743 function_list |
while do_read
746 ${class} ${returntype} ${function} ($formal)
750 eval echo \"\ \ \ \
${r}=\
${${r}}\"
752 if class_is_predicate_p
&& fallback_default_p
754 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
758 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
760 echo "Error: postdefault is useless when invalid_p=0" 1>&2
764 if class_is_multiarch_p
766 if class_is_predicate_p
; then :
767 elif test "x${predefault}" = "x"
769 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
778 compare_new gdbarch.log
784 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
786 /* Dynamic architecture support for GDB, the GNU debugger.
788 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
789 Free Software Foundation, Inc.
791 This file is part of GDB.
793 This program is free software; you can redistribute it and/or modify
794 it under the terms of the GNU General Public License as published by
795 the Free Software Foundation; either version 3 of the License, or
796 (at your option) any later version.
798 This program is distributed in the hope that it will be useful,
799 but WITHOUT ANY WARRANTY; without even the implied warranty of
800 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
801 GNU General Public License for more details.
803 You should have received a copy of the GNU General Public License
804 along with this program. If not, see <http://www.gnu.org/licenses/>. */
806 /* This file was created with the aid of \`\`gdbarch.sh''.
808 The Bourne shell script \`\`gdbarch.sh'' creates the files
809 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
810 against the existing \`\`gdbarch.[hc]''. Any differences found
813 If editing this file, please also run gdbarch.sh and merge any
814 changes into that script. Conversely, when making sweeping changes
815 to this file, modifying gdbarch.sh and using its output may prove
837 struct minimal_symbol;
841 struct disassemble_info;
844 struct bp_target_info;
846 struct displaced_step_closure;
847 struct core_regset_section;
849 extern struct gdbarch *current_gdbarch;
851 /* The architecture associated with the connection to the target.
853 The architecture vector provides some information that is really
854 a property of the target: The layout of certain packets, for instance;
855 or the solib_ops vector. Etc. To differentiate architecture accesses
856 to per-target properties from per-thread/per-frame/per-objfile properties,
857 accesses to per-target properties should be made through target_gdbarch.
859 Eventually, when support for multiple targets is implemented in
860 GDB, this global should be made target-specific. */
861 extern struct gdbarch *target_gdbarch;
867 printf "/* The following are pre-initialized by GDBARCH. */\n"
868 function_list |
while do_read
873 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
874 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
881 printf "/* The following are initialized by the target dependent code. */\n"
882 function_list |
while do_read
884 if [ -n "${comment}" ]
886 echo "${comment}" |
sed \
892 if class_is_predicate_p
895 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
897 if class_is_variable_p
900 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
901 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
903 if class_is_function_p
906 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
908 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
909 elif class_is_multiarch_p
911 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
913 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
915 if [ "x${formal}" = "xvoid" ]
917 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
919 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
921 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
928 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
931 /* Mechanism for co-ordinating the selection of a specific
934 GDB targets (*-tdep.c) can register an interest in a specific
935 architecture. Other GDB components can register a need to maintain
936 per-architecture data.
938 The mechanisms below ensures that there is only a loose connection
939 between the set-architecture command and the various GDB
940 components. Each component can independently register their need
941 to maintain architecture specific data with gdbarch.
945 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
948 The more traditional mega-struct containing architecture specific
949 data for all the various GDB components was also considered. Since
950 GDB is built from a variable number of (fairly independent)
951 components it was determined that the global aproach was not
955 /* Register a new architectural family with GDB.
957 Register support for the specified ARCHITECTURE with GDB. When
958 gdbarch determines that the specified architecture has been
959 selected, the corresponding INIT function is called.
963 The INIT function takes two parameters: INFO which contains the
964 information available to gdbarch about the (possibly new)
965 architecture; ARCHES which is a list of the previously created
966 \`\`struct gdbarch'' for this architecture.
968 The INFO parameter is, as far as possible, be pre-initialized with
969 information obtained from INFO.ABFD or the global defaults.
971 The ARCHES parameter is a linked list (sorted most recently used)
972 of all the previously created architures for this architecture
973 family. The (possibly NULL) ARCHES->gdbarch can used to access
974 values from the previously selected architecture for this
975 architecture family. The global \`\`current_gdbarch'' shall not be
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. "current_gdbarch" is not updated. */
1087 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1090 /* Helper function. Set the global "current_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_current_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}, /* ${function} */\n"
1317 /* startup_gdbarch() */
1320 struct gdbarch *current_gdbarch = &startup_gdbarch;
1321 struct gdbarch *target_gdbarch = &startup_gdbarch;
1324 # Create a new gdbarch struct
1327 /* Create a new \`\`struct gdbarch'' based on information provided by
1328 \`\`struct gdbarch_info''. */
1333 gdbarch_alloc (const struct gdbarch_info *info,
1334 struct gdbarch_tdep *tdep)
1336 struct gdbarch *gdbarch;
1338 /* Create an obstack for allocating all the per-architecture memory,
1339 then use that to allocate the architecture vector. */
1340 struct obstack *obstack = XMALLOC (struct obstack);
1341 obstack_init (obstack);
1342 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1343 memset (gdbarch, 0, sizeof (*gdbarch));
1344 gdbarch->obstack = obstack;
1346 alloc_gdbarch_data (gdbarch);
1348 gdbarch->tdep = tdep;
1351 function_list |
while do_read
1355 printf " gdbarch->${function} = info->${function};\n"
1359 printf " /* Force the explicit initialization of these. */\n"
1360 function_list |
while do_read
1362 if class_is_function_p || class_is_variable_p
1364 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1366 printf " gdbarch->${function} = ${predefault};\n"
1371 /* gdbarch_alloc() */
1377 # Free a gdbarch struct.
1381 /* Allocate extra space using the per-architecture obstack. */
1384 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1386 void *data = obstack_alloc (arch->obstack, size);
1387 memset (data, 0, size);
1392 /* Free a gdbarch struct. This should never happen in normal
1393 operation --- once you've created a gdbarch, you keep it around.
1394 However, if an architecture's init function encounters an error
1395 building the structure, it may need to clean up a partially
1396 constructed gdbarch. */
1399 gdbarch_free (struct gdbarch *arch)
1401 struct obstack *obstack;
1402 gdb_assert (arch != NULL);
1403 gdb_assert (!arch->initialized_p);
1404 obstack = arch->obstack;
1405 obstack_free (obstack, 0); /* Includes the ARCH. */
1410 # verify a new architecture
1414 /* Ensure that all values in a GDBARCH are reasonable. */
1417 verify_gdbarch (struct gdbarch *gdbarch)
1419 struct ui_file *log;
1420 struct cleanup *cleanups;
1423 log = mem_fileopen ();
1424 cleanups = make_cleanup_ui_file_delete (log);
1426 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1427 fprintf_unfiltered (log, "\n\tbyte-order");
1428 if (gdbarch->bfd_arch_info == NULL)
1429 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1430 /* Check those that need to be defined for the given multi-arch level. */
1432 function_list |
while do_read
1434 if class_is_function_p || class_is_variable_p
1436 if [ "x${invalid_p}" = "x0" ]
1438 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1439 elif class_is_predicate_p
1441 printf " /* Skip verify of ${function}, has predicate */\n"
1442 # FIXME: See do_read for potential simplification
1443 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1445 printf " if (${invalid_p})\n"
1446 printf " gdbarch->${function} = ${postdefault};\n"
1447 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1449 printf " if (gdbarch->${function} == ${predefault})\n"
1450 printf " gdbarch->${function} = ${postdefault};\n"
1451 elif [ -n "${postdefault}" ]
1453 printf " if (gdbarch->${function} == 0)\n"
1454 printf " gdbarch->${function} = ${postdefault};\n"
1455 elif [ -n "${invalid_p}" ]
1457 printf " if (${invalid_p})\n"
1458 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1459 elif [ -n "${predefault}" ]
1461 printf " if (gdbarch->${function} == ${predefault})\n"
1462 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1467 buf = ui_file_xstrdup (log, &dummy);
1468 make_cleanup (xfree, buf);
1469 if (strlen (buf) > 0)
1470 internal_error (__FILE__, __LINE__,
1471 _("verify_gdbarch: the following are invalid ...%s"),
1473 do_cleanups (cleanups);
1477 # dump the structure
1481 /* Print out the details of the current architecture. */
1484 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1486 const char *gdb_nm_file = "<not-defined>";
1487 #if defined (GDB_NM_FILE)
1488 gdb_nm_file = GDB_NM_FILE;
1490 fprintf_unfiltered (file,
1491 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1494 function_list |
sort -t: -k 3 |
while do_read
1496 # First the predicate
1497 if class_is_predicate_p
1499 printf " fprintf_unfiltered (file,\n"
1500 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1501 printf " gdbarch_${function}_p (gdbarch));\n"
1503 # Print the corresponding value.
1504 if class_is_function_p
1506 printf " fprintf_unfiltered (file,\n"
1507 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1508 printf " host_address_to_string (gdbarch->${function}));\n"
1511 case "${print}:${returntype}" in
1514 print
="core_addr_to_string_nz (gdbarch->${function})"
1518 print
="plongest (gdbarch->${function})"
1524 printf " fprintf_unfiltered (file,\n"
1525 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1526 printf " ${print});\n"
1530 if (gdbarch->dump_tdep != NULL)
1531 gdbarch->dump_tdep (gdbarch, file);
1539 struct gdbarch_tdep *
1540 gdbarch_tdep (struct gdbarch *gdbarch)
1542 if (gdbarch_debug >= 2)
1543 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1544 return gdbarch->tdep;
1548 function_list |
while do_read
1550 if class_is_predicate_p
1554 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1556 printf " gdb_assert (gdbarch != NULL);\n"
1557 printf " return ${predicate};\n"
1560 if class_is_function_p
1563 printf "${returntype}\n"
1564 if [ "x${formal}" = "xvoid" ]
1566 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1568 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1571 printf " gdb_assert (gdbarch != NULL);\n"
1572 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1573 if class_is_predicate_p
&& test -n "${predefault}"
1575 # Allow a call to a function with a predicate.
1576 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1578 printf " if (gdbarch_debug >= 2)\n"
1579 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1580 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1582 if class_is_multiarch_p
1589 if class_is_multiarch_p
1591 params
="gdbarch, ${actual}"
1596 if [ "x${returntype}" = "xvoid" ]
1598 printf " gdbarch->${function} (${params});\n"
1600 printf " return gdbarch->${function} (${params});\n"
1605 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1606 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1608 printf " gdbarch->${function} = ${function};\n"
1610 elif class_is_variable_p
1613 printf "${returntype}\n"
1614 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1616 printf " gdb_assert (gdbarch != NULL);\n"
1617 if [ "x${invalid_p}" = "x0" ]
1619 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1620 elif [ -n "${invalid_p}" ]
1622 printf " /* Check variable is valid. */\n"
1623 printf " gdb_assert (!(${invalid_p}));\n"
1624 elif [ -n "${predefault}" ]
1626 printf " /* Check variable changed from pre-default. */\n"
1627 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1629 printf " if (gdbarch_debug >= 2)\n"
1630 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1631 printf " return gdbarch->${function};\n"
1635 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1636 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1638 printf " gdbarch->${function} = ${function};\n"
1640 elif class_is_info_p
1643 printf "${returntype}\n"
1644 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1646 printf " gdb_assert (gdbarch != NULL);\n"
1647 printf " if (gdbarch_debug >= 2)\n"
1648 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1649 printf " return gdbarch->${function};\n"
1654 # All the trailing guff
1658 /* Keep a registry of per-architecture data-pointers required by GDB
1665 gdbarch_data_pre_init_ftype *pre_init;
1666 gdbarch_data_post_init_ftype *post_init;
1669 struct gdbarch_data_registration
1671 struct gdbarch_data *data;
1672 struct gdbarch_data_registration *next;
1675 struct gdbarch_data_registry
1678 struct gdbarch_data_registration *registrations;
1681 struct gdbarch_data_registry gdbarch_data_registry =
1686 static struct gdbarch_data *
1687 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1688 gdbarch_data_post_init_ftype *post_init)
1690 struct gdbarch_data_registration **curr;
1691 /* Append the new registraration. */
1692 for (curr = &gdbarch_data_registry.registrations;
1694 curr = &(*curr)->next);
1695 (*curr) = XMALLOC (struct gdbarch_data_registration);
1696 (*curr)->next = NULL;
1697 (*curr)->data = XMALLOC (struct gdbarch_data);
1698 (*curr)->data->index = gdbarch_data_registry.nr++;
1699 (*curr)->data->pre_init = pre_init;
1700 (*curr)->data->post_init = post_init;
1701 (*curr)->data->init_p = 1;
1702 return (*curr)->data;
1705 struct gdbarch_data *
1706 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1708 return gdbarch_data_register (pre_init, NULL);
1711 struct gdbarch_data *
1712 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1714 return gdbarch_data_register (NULL, post_init);
1717 /* Create/delete the gdbarch data vector. */
1720 alloc_gdbarch_data (struct gdbarch *gdbarch)
1722 gdb_assert (gdbarch->data == NULL);
1723 gdbarch->nr_data = gdbarch_data_registry.nr;
1724 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1727 /* Initialize the current value of the specified per-architecture
1731 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1732 struct gdbarch_data *data,
1735 gdb_assert (data->index < gdbarch->nr_data);
1736 gdb_assert (gdbarch->data[data->index] == NULL);
1737 gdb_assert (data->pre_init == NULL);
1738 gdbarch->data[data->index] = pointer;
1741 /* Return the current value of the specified per-architecture
1745 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1747 gdb_assert (data->index < gdbarch->nr_data);
1748 if (gdbarch->data[data->index] == NULL)
1750 /* The data-pointer isn't initialized, call init() to get a
1752 if (data->pre_init != NULL)
1753 /* Mid architecture creation: pass just the obstack, and not
1754 the entire architecture, as that way it isn't possible for
1755 pre-init code to refer to undefined architecture
1757 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1758 else if (gdbarch->initialized_p
1759 && data->post_init != NULL)
1760 /* Post architecture creation: pass the entire architecture
1761 (as all fields are valid), but be careful to also detect
1762 recursive references. */
1764 gdb_assert (data->init_p);
1766 gdbarch->data[data->index] = data->post_init (gdbarch);
1770 /* The architecture initialization hasn't completed - punt -
1771 hope that the caller knows what they are doing. Once
1772 deprecated_set_gdbarch_data has been initialized, this can be
1773 changed to an internal error. */
1775 gdb_assert (gdbarch->data[data->index] != NULL);
1777 return gdbarch->data[data->index];
1781 /* Keep a registry of the architectures known by GDB. */
1783 struct gdbarch_registration
1785 enum bfd_architecture bfd_architecture;
1786 gdbarch_init_ftype *init;
1787 gdbarch_dump_tdep_ftype *dump_tdep;
1788 struct gdbarch_list *arches;
1789 struct gdbarch_registration *next;
1792 static struct gdbarch_registration *gdbarch_registry = NULL;
1795 append_name (const char ***buf, int *nr, const char *name)
1797 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1803 gdbarch_printable_names (void)
1805 /* Accumulate a list of names based on the registed list of
1807 enum bfd_architecture a;
1809 const char **arches = NULL;
1810 struct gdbarch_registration *rego;
1811 for (rego = gdbarch_registry;
1815 const struct bfd_arch_info *ap;
1816 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1818 internal_error (__FILE__, __LINE__,
1819 _("gdbarch_architecture_names: multi-arch unknown"));
1822 append_name (&arches, &nr_arches, ap->printable_name);
1827 append_name (&arches, &nr_arches, NULL);
1833 gdbarch_register (enum bfd_architecture bfd_architecture,
1834 gdbarch_init_ftype *init,
1835 gdbarch_dump_tdep_ftype *dump_tdep)
1837 struct gdbarch_registration **curr;
1838 const struct bfd_arch_info *bfd_arch_info;
1839 /* Check that BFD recognizes this architecture */
1840 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1841 if (bfd_arch_info == NULL)
1843 internal_error (__FILE__, __LINE__,
1844 _("gdbarch: Attempt to register unknown architecture (%d)"),
1847 /* Check that we haven't seen this architecture before */
1848 for (curr = &gdbarch_registry;
1850 curr = &(*curr)->next)
1852 if (bfd_architecture == (*curr)->bfd_architecture)
1853 internal_error (__FILE__, __LINE__,
1854 _("gdbarch: Duplicate registraration of architecture (%s)"),
1855 bfd_arch_info->printable_name);
1859 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1860 bfd_arch_info->printable_name,
1861 host_address_to_string (init));
1863 (*curr) = XMALLOC (struct gdbarch_registration);
1864 (*curr)->bfd_architecture = bfd_architecture;
1865 (*curr)->init = init;
1866 (*curr)->dump_tdep = dump_tdep;
1867 (*curr)->arches = NULL;
1868 (*curr)->next = NULL;
1872 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1873 gdbarch_init_ftype *init)
1875 gdbarch_register (bfd_architecture, init, NULL);
1879 /* Look for an architecture using gdbarch_info. */
1881 struct gdbarch_list *
1882 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1883 const struct gdbarch_info *info)
1885 for (; arches != NULL; arches = arches->next)
1887 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1889 if (info->byte_order != arches->gdbarch->byte_order)
1891 if (info->osabi != arches->gdbarch->osabi)
1893 if (info->target_desc != arches->gdbarch->target_desc)
1901 /* Find an architecture that matches the specified INFO. Create a new
1902 architecture if needed. Return that new architecture. Assumes
1903 that there is no current architecture. */
1905 static struct gdbarch *
1906 find_arch_by_info (struct gdbarch_info info)
1908 struct gdbarch *new_gdbarch;
1909 struct gdbarch_registration *rego;
1911 /* The existing architecture has been swapped out - all this code
1912 works from a clean slate. */
1913 gdb_assert (current_gdbarch == NULL);
1915 /* Fill in missing parts of the INFO struct using a number of
1916 sources: "set ..."; INFOabfd supplied; and the global
1918 gdbarch_info_fill (&info);
1920 /* Must have found some sort of architecture. */
1921 gdb_assert (info.bfd_arch_info != NULL);
1925 fprintf_unfiltered (gdb_stdlog,
1926 "find_arch_by_info: info.bfd_arch_info %s\n",
1927 (info.bfd_arch_info != NULL
1928 ? info.bfd_arch_info->printable_name
1930 fprintf_unfiltered (gdb_stdlog,
1931 "find_arch_by_info: info.byte_order %d (%s)\n",
1933 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1934 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1936 fprintf_unfiltered (gdb_stdlog,
1937 "find_arch_by_info: info.osabi %d (%s)\n",
1938 info.osabi, gdbarch_osabi_name (info.osabi));
1939 fprintf_unfiltered (gdb_stdlog,
1940 "find_arch_by_info: info.abfd %s\n",
1941 host_address_to_string (info.abfd));
1942 fprintf_unfiltered (gdb_stdlog,
1943 "find_arch_by_info: info.tdep_info %s\n",
1944 host_address_to_string (info.tdep_info));
1947 /* Find the tdep code that knows about this architecture. */
1948 for (rego = gdbarch_registry;
1951 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1956 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1957 "No matching architecture\n");
1961 /* Ask the tdep code for an architecture that matches "info". */
1962 new_gdbarch = rego->init (info, rego->arches);
1964 /* Did the tdep code like it? No. Reject the change and revert to
1965 the old architecture. */
1966 if (new_gdbarch == NULL)
1969 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1970 "Target rejected architecture\n");
1974 /* Is this a pre-existing architecture (as determined by already
1975 being initialized)? Move it to the front of the architecture
1976 list (keeping the list sorted Most Recently Used). */
1977 if (new_gdbarch->initialized_p)
1979 struct gdbarch_list **list;
1980 struct gdbarch_list *this;
1982 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1983 "Previous architecture %s (%s) selected\n",
1984 host_address_to_string (new_gdbarch),
1985 new_gdbarch->bfd_arch_info->printable_name);
1986 /* Find the existing arch in the list. */
1987 for (list = ®o->arches;
1988 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
1989 list = &(*list)->next);
1990 /* It had better be in the list of architectures. */
1991 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
1994 (*list) = this->next;
1995 /* Insert THIS at the front. */
1996 this->next = rego->arches;
1997 rego->arches = this;
2002 /* It's a new architecture. */
2004 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2005 "New architecture %s (%s) selected\n",
2006 host_address_to_string (new_gdbarch),
2007 new_gdbarch->bfd_arch_info->printable_name);
2009 /* Insert the new architecture into the front of the architecture
2010 list (keep the list sorted Most Recently Used). */
2012 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2013 this->next = rego->arches;
2014 this->gdbarch = new_gdbarch;
2015 rego->arches = this;
2018 /* Check that the newly installed architecture is valid. Plug in
2019 any post init values. */
2020 new_gdbarch->dump_tdep = rego->dump_tdep;
2021 verify_gdbarch (new_gdbarch);
2022 new_gdbarch->initialized_p = 1;
2025 gdbarch_dump (new_gdbarch, gdb_stdlog);
2031 gdbarch_find_by_info (struct gdbarch_info info)
2033 struct gdbarch *new_gdbarch;
2035 /* Save the previously selected architecture, setting the global to
2036 NULL. This stops things like gdbarch->init() trying to use the
2037 previous architecture's configuration. The previous architecture
2038 may not even be of the same architecture family. The most recent
2039 architecture of the same family is found at the head of the
2040 rego->arches list. */
2041 struct gdbarch *old_gdbarch = current_gdbarch;
2042 current_gdbarch = NULL;
2044 /* Find the specified architecture. */
2045 new_gdbarch = find_arch_by_info (info);
2047 /* Restore the existing architecture. */
2048 gdb_assert (current_gdbarch == NULL);
2049 current_gdbarch = old_gdbarch;
2054 /* Make the specified architecture current. */
2057 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2059 gdb_assert (new_gdbarch != NULL);
2060 gdb_assert (current_gdbarch != NULL);
2061 gdb_assert (new_gdbarch->initialized_p);
2062 current_gdbarch = new_gdbarch;
2063 target_gdbarch = new_gdbarch;
2064 observer_notify_architecture_changed (new_gdbarch);
2065 registers_changed ();
2068 extern void _initialize_gdbarch (void);
2071 _initialize_gdbarch (void)
2073 struct cmd_list_element *c;
2075 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2076 Set architecture debugging."), _("\\
2077 Show architecture debugging."), _("\\
2078 When non-zero, architecture debugging is enabled."),
2081 &setdebuglist, &showdebuglist);
2087 #../move-if-change new-gdbarch.c gdbarch.c
2088 compare_new gdbarch.c