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 # Save process state after a signal.
713 # Return -1 if something goes wrong, 0 otherwise.
714 M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
716 # Signal translation: translate inferior's signal (host's) number into
717 # GDB's representation.
718 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
719 # Signal translation: translate GDB's signal number into inferior's host
721 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
723 # Extra signal info inspection.
725 # Return a type suitable to inspect extra signal information.
726 M:struct type *:get_siginfo_type:void:
728 # Record architecture-specific information from the symbol table.
729 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
731 # Function for the 'catch syscall' feature.
733 # Get architecture-specific system calls information from registers.
734 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
736 # True if the list of shared libraries is one and only for all
737 # processes, as opposed to a list of shared libraries per inferior.
738 # This usually means that all processes, although may or may not share
739 # an address space, will see the same set of symbols at the same
741 v:int:has_global_solist:::0:0::0
743 # On some targets, even though each inferior has its own private
744 # address space, the debug interface takes care of making breakpoints
745 # visible to all address spaces automatically. For such cases,
746 # this property should be set to true.
747 v:int:has_global_breakpoints:::0:0::0
754 exec > new-gdbarch.log
755 function_list |
while do_read
758 ${class} ${returntype} ${function} ($formal)
762 eval echo \"\ \ \ \
${r}=\
${${r}}\"
764 if class_is_predicate_p
&& fallback_default_p
766 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
770 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
772 echo "Error: postdefault is useless when invalid_p=0" 1>&2
776 if class_is_multiarch_p
778 if class_is_predicate_p
; then :
779 elif test "x${predefault}" = "x"
781 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
790 compare_new gdbarch.log
796 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
798 /* Dynamic architecture support for GDB, the GNU debugger.
800 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
801 Free Software Foundation, Inc.
803 This file is part of GDB.
805 This program is free software; you can redistribute it and/or modify
806 it under the terms of the GNU General Public License as published by
807 the Free Software Foundation; either version 3 of the License, or
808 (at your option) any later version.
810 This program is distributed in the hope that it will be useful,
811 but WITHOUT ANY WARRANTY; without even the implied warranty of
812 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
813 GNU General Public License for more details.
815 You should have received a copy of the GNU General Public License
816 along with this program. If not, see <http://www.gnu.org/licenses/>. */
818 /* This file was created with the aid of \`\`gdbarch.sh''.
820 The Bourne shell script \`\`gdbarch.sh'' creates the files
821 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
822 against the existing \`\`gdbarch.[hc]''. Any differences found
825 If editing this file, please also run gdbarch.sh and merge any
826 changes into that script. Conversely, when making sweeping changes
827 to this file, modifying gdbarch.sh and using its output may prove
849 struct minimal_symbol;
853 struct disassemble_info;
856 struct bp_target_info;
858 struct displaced_step_closure;
859 struct core_regset_section;
862 /* The architecture associated with the connection to the target.
864 The architecture vector provides some information that is really
865 a property of the target: The layout of certain packets, for instance;
866 or the solib_ops vector. Etc. To differentiate architecture accesses
867 to per-target properties from per-thread/per-frame/per-objfile properties,
868 accesses to per-target properties should be made through target_gdbarch.
870 Eventually, when support for multiple targets is implemented in
871 GDB, this global should be made target-specific. */
872 extern struct gdbarch *target_gdbarch;
878 printf "/* The following are pre-initialized by GDBARCH. */\n"
879 function_list |
while do_read
884 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
885 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
892 printf "/* The following are initialized by the target dependent code. */\n"
893 function_list |
while do_read
895 if [ -n "${comment}" ]
897 echo "${comment}" |
sed \
903 if class_is_predicate_p
906 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
908 if class_is_variable_p
911 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
912 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
914 if class_is_function_p
917 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
919 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
920 elif class_is_multiarch_p
922 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
924 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
926 if [ "x${formal}" = "xvoid" ]
928 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
930 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
932 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
939 /* Definition for an unknown syscall, used basically in error-cases. */
940 #define UNKNOWN_SYSCALL (-1)
942 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
945 /* Mechanism for co-ordinating the selection of a specific
948 GDB targets (*-tdep.c) can register an interest in a specific
949 architecture. Other GDB components can register a need to maintain
950 per-architecture data.
952 The mechanisms below ensures that there is only a loose connection
953 between the set-architecture command and the various GDB
954 components. Each component can independently register their need
955 to maintain architecture specific data with gdbarch.
959 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
962 The more traditional mega-struct containing architecture specific
963 data for all the various GDB components was also considered. Since
964 GDB is built from a variable number of (fairly independent)
965 components it was determined that the global aproach was not
969 /* Register a new architectural family with GDB.
971 Register support for the specified ARCHITECTURE with GDB. When
972 gdbarch determines that the specified architecture has been
973 selected, the corresponding INIT function is called.
977 The INIT function takes two parameters: INFO which contains the
978 information available to gdbarch about the (possibly new)
979 architecture; ARCHES which is a list of the previously created
980 \`\`struct gdbarch'' for this architecture.
982 The INFO parameter is, as far as possible, be pre-initialized with
983 information obtained from INFO.ABFD or the global defaults.
985 The ARCHES parameter is a linked list (sorted most recently used)
986 of all the previously created architures for this architecture
987 family. The (possibly NULL) ARCHES->gdbarch can used to access
988 values from the previously selected architecture for this
991 The INIT function shall return any of: NULL - indicating that it
992 doesn't recognize the selected architecture; an existing \`\`struct
993 gdbarch'' from the ARCHES list - indicating that the new
994 architecture is just a synonym for an earlier architecture (see
995 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
996 - that describes the selected architecture (see gdbarch_alloc()).
998 The DUMP_TDEP function shall print out all target specific values.
999 Care should be taken to ensure that the function works in both the
1000 multi-arch and non- multi-arch cases. */
1004 struct gdbarch *gdbarch;
1005 struct gdbarch_list *next;
1010 /* Use default: NULL (ZERO). */
1011 const struct bfd_arch_info *bfd_arch_info;
1013 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1016 int byte_order_for_code;
1018 /* Use default: NULL (ZERO). */
1021 /* Use default: NULL (ZERO). */
1022 struct gdbarch_tdep_info *tdep_info;
1024 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1025 enum gdb_osabi osabi;
1027 /* Use default: NULL (ZERO). */
1028 const struct target_desc *target_desc;
1031 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1032 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1034 /* DEPRECATED - use gdbarch_register() */
1035 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1037 extern void gdbarch_register (enum bfd_architecture architecture,
1038 gdbarch_init_ftype *,
1039 gdbarch_dump_tdep_ftype *);
1042 /* Return a freshly allocated, NULL terminated, array of the valid
1043 architecture names. Since architectures are registered during the
1044 _initialize phase this function only returns useful information
1045 once initialization has been completed. */
1047 extern const char **gdbarch_printable_names (void);
1050 /* Helper function. Search the list of ARCHES for a GDBARCH that
1051 matches the information provided by INFO. */
1053 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1056 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1057 basic initialization using values obtained from the INFO and TDEP
1058 parameters. set_gdbarch_*() functions are called to complete the
1059 initialization of the object. */
1061 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1064 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1065 It is assumed that the caller freeds the \`\`struct
1068 extern void gdbarch_free (struct gdbarch *);
1071 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1072 obstack. The memory is freed when the corresponding architecture
1075 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1076 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1077 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1080 /* Helper function. Force an update of the current architecture.
1082 The actual architecture selected is determined by INFO, \`\`(gdb) set
1083 architecture'' et.al., the existing architecture and BFD's default
1084 architecture. INFO should be initialized to zero and then selected
1085 fields should be updated.
1087 Returns non-zero if the update succeeds */
1089 extern int gdbarch_update_p (struct gdbarch_info info);
1092 /* Helper function. Find an architecture matching info.
1094 INFO should be initialized using gdbarch_info_init, relevant fields
1095 set, and then finished using gdbarch_info_fill.
1097 Returns the corresponding architecture, or NULL if no matching
1098 architecture was found. */
1100 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1103 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1105 FIXME: kettenis/20031124: Of the functions that follow, only
1106 gdbarch_from_bfd is supposed to survive. The others will
1107 dissappear since in the future GDB will (hopefully) be truly
1108 multi-arch. However, for now we're still stuck with the concept of
1109 a single active architecture. */
1111 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1114 /* Register per-architecture data-pointer.
1116 Reserve space for a per-architecture data-pointer. An identifier
1117 for the reserved data-pointer is returned. That identifer should
1118 be saved in a local static variable.
1120 Memory for the per-architecture data shall be allocated using
1121 gdbarch_obstack_zalloc. That memory will be deleted when the
1122 corresponding architecture object is deleted.
1124 When a previously created architecture is re-selected, the
1125 per-architecture data-pointer for that previous architecture is
1126 restored. INIT() is not re-called.
1128 Multiple registrarants for any architecture are allowed (and
1129 strongly encouraged). */
1131 struct gdbarch_data;
1133 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1134 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1135 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1136 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1137 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1138 struct gdbarch_data *data,
1141 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1144 /* Set the dynamic target-system-dependent parameters (architecture,
1145 byte-order, ...) using information found in the BFD */
1147 extern void set_gdbarch_from_file (bfd *);
1150 /* Initialize the current architecture to the "first" one we find on
1153 extern void initialize_current_architecture (void);
1155 /* gdbarch trace variable */
1156 extern int gdbarch_debug;
1158 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1163 #../move-if-change new-gdbarch.h gdbarch.h
1164 compare_new gdbarch.h
1171 exec > new-gdbarch.c
1176 #include "arch-utils.h"
1179 #include "inferior.h"
1182 #include "floatformat.h"
1184 #include "gdb_assert.h"
1185 #include "gdb_string.h"
1186 #include "reggroups.h"
1188 #include "gdb_obstack.h"
1189 #include "observer.h"
1190 #include "regcache.h"
1192 /* Static function declarations */
1194 static void alloc_gdbarch_data (struct gdbarch *);
1196 /* Non-zero if we want to trace architecture code. */
1198 #ifndef GDBARCH_DEBUG
1199 #define GDBARCH_DEBUG 0
1201 int gdbarch_debug = GDBARCH_DEBUG;
1203 show_gdbarch_debug (struct ui_file *file, int from_tty,
1204 struct cmd_list_element *c, const char *value)
1206 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1210 pformat (const struct floatformat **format)
1215 /* Just print out one of them - this is only for diagnostics. */
1216 return format[0]->name;
1221 # gdbarch open the gdbarch object
1223 printf "/* Maintain the struct gdbarch object */\n"
1225 printf "struct gdbarch\n"
1227 printf " /* Has this architecture been fully initialized? */\n"
1228 printf " int initialized_p;\n"
1230 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1231 printf " struct obstack *obstack;\n"
1233 printf " /* basic architectural information */\n"
1234 function_list |
while do_read
1238 printf " ${returntype} ${function};\n"
1242 printf " /* target specific vector. */\n"
1243 printf " struct gdbarch_tdep *tdep;\n"
1244 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1246 printf " /* per-architecture data-pointers */\n"
1247 printf " unsigned nr_data;\n"
1248 printf " void **data;\n"
1250 printf " /* per-architecture swap-regions */\n"
1251 printf " struct gdbarch_swap *swap;\n"
1254 /* Multi-arch values.
1256 When extending this structure you must:
1258 Add the field below.
1260 Declare set/get functions and define the corresponding
1263 gdbarch_alloc(): If zero/NULL is not a suitable default,
1264 initialize the new field.
1266 verify_gdbarch(): Confirm that the target updated the field
1269 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1272 \`\`startup_gdbarch()'': Append an initial value to the static
1273 variable (base values on the host's c-type system).
1275 get_gdbarch(): Implement the set/get functions (probably using
1276 the macro's as shortcuts).
1281 function_list |
while do_read
1283 if class_is_variable_p
1285 printf " ${returntype} ${function};\n"
1286 elif class_is_function_p
1288 printf " gdbarch_${function}_ftype *${function};\n"
1293 # A pre-initialized vector
1297 /* The default architecture uses host values (for want of a better
1301 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1303 printf "struct gdbarch startup_gdbarch =\n"
1305 printf " 1, /* Always initialized. */\n"
1306 printf " NULL, /* The obstack. */\n"
1307 printf " /* basic architecture information */\n"
1308 function_list |
while do_read
1312 printf " ${staticdefault}, /* ${function} */\n"
1316 /* target specific vector and its dump routine */
1318 /*per-architecture data-pointers and swap regions */
1320 /* Multi-arch values */
1322 function_list |
while do_read
1324 if class_is_function_p || class_is_variable_p
1326 printf " ${staticdefault}, /* ${function} */\n"
1330 /* startup_gdbarch() */
1333 struct gdbarch *target_gdbarch = &startup_gdbarch;
1336 # Create a new gdbarch struct
1339 /* Create a new \`\`struct gdbarch'' based on information provided by
1340 \`\`struct gdbarch_info''. */
1345 gdbarch_alloc (const struct gdbarch_info *info,
1346 struct gdbarch_tdep *tdep)
1348 struct gdbarch *gdbarch;
1350 /* Create an obstack for allocating all the per-architecture memory,
1351 then use that to allocate the architecture vector. */
1352 struct obstack *obstack = XMALLOC (struct obstack);
1353 obstack_init (obstack);
1354 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1355 memset (gdbarch, 0, sizeof (*gdbarch));
1356 gdbarch->obstack = obstack;
1358 alloc_gdbarch_data (gdbarch);
1360 gdbarch->tdep = tdep;
1363 function_list |
while do_read
1367 printf " gdbarch->${function} = info->${function};\n"
1371 printf " /* Force the explicit initialization of these. */\n"
1372 function_list |
while do_read
1374 if class_is_function_p || class_is_variable_p
1376 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1378 printf " gdbarch->${function} = ${predefault};\n"
1383 /* gdbarch_alloc() */
1389 # Free a gdbarch struct.
1393 /* Allocate extra space using the per-architecture obstack. */
1396 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1398 void *data = obstack_alloc (arch->obstack, size);
1399 memset (data, 0, size);
1404 /* Free a gdbarch struct. This should never happen in normal
1405 operation --- once you've created a gdbarch, you keep it around.
1406 However, if an architecture's init function encounters an error
1407 building the structure, it may need to clean up a partially
1408 constructed gdbarch. */
1411 gdbarch_free (struct gdbarch *arch)
1413 struct obstack *obstack;
1414 gdb_assert (arch != NULL);
1415 gdb_assert (!arch->initialized_p);
1416 obstack = arch->obstack;
1417 obstack_free (obstack, 0); /* Includes the ARCH. */
1422 # verify a new architecture
1426 /* Ensure that all values in a GDBARCH are reasonable. */
1429 verify_gdbarch (struct gdbarch *gdbarch)
1431 struct ui_file *log;
1432 struct cleanup *cleanups;
1435 log = mem_fileopen ();
1436 cleanups = make_cleanup_ui_file_delete (log);
1438 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1439 fprintf_unfiltered (log, "\n\tbyte-order");
1440 if (gdbarch->bfd_arch_info == NULL)
1441 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1442 /* Check those that need to be defined for the given multi-arch level. */
1444 function_list |
while do_read
1446 if class_is_function_p || class_is_variable_p
1448 if [ "x${invalid_p}" = "x0" ]
1450 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1451 elif class_is_predicate_p
1453 printf " /* Skip verify of ${function}, has predicate */\n"
1454 # FIXME: See do_read for potential simplification
1455 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1457 printf " if (${invalid_p})\n"
1458 printf " gdbarch->${function} = ${postdefault};\n"
1459 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1461 printf " if (gdbarch->${function} == ${predefault})\n"
1462 printf " gdbarch->${function} = ${postdefault};\n"
1463 elif [ -n "${postdefault}" ]
1465 printf " if (gdbarch->${function} == 0)\n"
1466 printf " gdbarch->${function} = ${postdefault};\n"
1467 elif [ -n "${invalid_p}" ]
1469 printf " if (${invalid_p})\n"
1470 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1471 elif [ -n "${predefault}" ]
1473 printf " if (gdbarch->${function} == ${predefault})\n"
1474 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1479 buf = ui_file_xstrdup (log, &length);
1480 make_cleanup (xfree, buf);
1482 internal_error (__FILE__, __LINE__,
1483 _("verify_gdbarch: the following are invalid ...%s"),
1485 do_cleanups (cleanups);
1489 # dump the structure
1493 /* Print out the details of the current architecture. */
1496 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1498 const char *gdb_nm_file = "<not-defined>";
1499 #if defined (GDB_NM_FILE)
1500 gdb_nm_file = GDB_NM_FILE;
1502 fprintf_unfiltered (file,
1503 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1506 function_list |
sort -t: -k 3 |
while do_read
1508 # First the predicate
1509 if class_is_predicate_p
1511 printf " fprintf_unfiltered (file,\n"
1512 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1513 printf " gdbarch_${function}_p (gdbarch));\n"
1515 # Print the corresponding value.
1516 if class_is_function_p
1518 printf " fprintf_unfiltered (file,\n"
1519 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1520 printf " host_address_to_string (gdbarch->${function}));\n"
1523 case "${print}:${returntype}" in
1526 print
="core_addr_to_string_nz (gdbarch->${function})"
1530 print
="plongest (gdbarch->${function})"
1536 printf " fprintf_unfiltered (file,\n"
1537 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1538 printf " ${print});\n"
1542 if (gdbarch->dump_tdep != NULL)
1543 gdbarch->dump_tdep (gdbarch, file);
1551 struct gdbarch_tdep *
1552 gdbarch_tdep (struct gdbarch *gdbarch)
1554 if (gdbarch_debug >= 2)
1555 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1556 return gdbarch->tdep;
1560 function_list |
while do_read
1562 if class_is_predicate_p
1566 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1568 printf " gdb_assert (gdbarch != NULL);\n"
1569 printf " return ${predicate};\n"
1572 if class_is_function_p
1575 printf "${returntype}\n"
1576 if [ "x${formal}" = "xvoid" ]
1578 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1580 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1583 printf " gdb_assert (gdbarch != NULL);\n"
1584 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1585 if class_is_predicate_p
&& test -n "${predefault}"
1587 # Allow a call to a function with a predicate.
1588 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1590 printf " if (gdbarch_debug >= 2)\n"
1591 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1592 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1594 if class_is_multiarch_p
1601 if class_is_multiarch_p
1603 params
="gdbarch, ${actual}"
1608 if [ "x${returntype}" = "xvoid" ]
1610 printf " gdbarch->${function} (${params});\n"
1612 printf " return gdbarch->${function} (${params});\n"
1617 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1618 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1620 printf " gdbarch->${function} = ${function};\n"
1622 elif class_is_variable_p
1625 printf "${returntype}\n"
1626 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1628 printf " gdb_assert (gdbarch != NULL);\n"
1629 if [ "x${invalid_p}" = "x0" ]
1631 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1632 elif [ -n "${invalid_p}" ]
1634 printf " /* Check variable is valid. */\n"
1635 printf " gdb_assert (!(${invalid_p}));\n"
1636 elif [ -n "${predefault}" ]
1638 printf " /* Check variable changed from pre-default. */\n"
1639 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1641 printf " if (gdbarch_debug >= 2)\n"
1642 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1643 printf " return gdbarch->${function};\n"
1647 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1648 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1650 printf " gdbarch->${function} = ${function};\n"
1652 elif class_is_info_p
1655 printf "${returntype}\n"
1656 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1658 printf " gdb_assert (gdbarch != NULL);\n"
1659 printf " if (gdbarch_debug >= 2)\n"
1660 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1661 printf " return gdbarch->${function};\n"
1666 # All the trailing guff
1670 /* Keep a registry of per-architecture data-pointers required by GDB
1677 gdbarch_data_pre_init_ftype *pre_init;
1678 gdbarch_data_post_init_ftype *post_init;
1681 struct gdbarch_data_registration
1683 struct gdbarch_data *data;
1684 struct gdbarch_data_registration *next;
1687 struct gdbarch_data_registry
1690 struct gdbarch_data_registration *registrations;
1693 struct gdbarch_data_registry gdbarch_data_registry =
1698 static struct gdbarch_data *
1699 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1700 gdbarch_data_post_init_ftype *post_init)
1702 struct gdbarch_data_registration **curr;
1703 /* Append the new registraration. */
1704 for (curr = &gdbarch_data_registry.registrations;
1706 curr = &(*curr)->next);
1707 (*curr) = XMALLOC (struct gdbarch_data_registration);
1708 (*curr)->next = NULL;
1709 (*curr)->data = XMALLOC (struct gdbarch_data);
1710 (*curr)->data->index = gdbarch_data_registry.nr++;
1711 (*curr)->data->pre_init = pre_init;
1712 (*curr)->data->post_init = post_init;
1713 (*curr)->data->init_p = 1;
1714 return (*curr)->data;
1717 struct gdbarch_data *
1718 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1720 return gdbarch_data_register (pre_init, NULL);
1723 struct gdbarch_data *
1724 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1726 return gdbarch_data_register (NULL, post_init);
1729 /* Create/delete the gdbarch data vector. */
1732 alloc_gdbarch_data (struct gdbarch *gdbarch)
1734 gdb_assert (gdbarch->data == NULL);
1735 gdbarch->nr_data = gdbarch_data_registry.nr;
1736 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1739 /* Initialize the current value of the specified per-architecture
1743 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1744 struct gdbarch_data *data,
1747 gdb_assert (data->index < gdbarch->nr_data);
1748 gdb_assert (gdbarch->data[data->index] == NULL);
1749 gdb_assert (data->pre_init == NULL);
1750 gdbarch->data[data->index] = pointer;
1753 /* Return the current value of the specified per-architecture
1757 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1759 gdb_assert (data->index < gdbarch->nr_data);
1760 if (gdbarch->data[data->index] == NULL)
1762 /* The data-pointer isn't initialized, call init() to get a
1764 if (data->pre_init != NULL)
1765 /* Mid architecture creation: pass just the obstack, and not
1766 the entire architecture, as that way it isn't possible for
1767 pre-init code to refer to undefined architecture
1769 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1770 else if (gdbarch->initialized_p
1771 && data->post_init != NULL)
1772 /* Post architecture creation: pass the entire architecture
1773 (as all fields are valid), but be careful to also detect
1774 recursive references. */
1776 gdb_assert (data->init_p);
1778 gdbarch->data[data->index] = data->post_init (gdbarch);
1782 /* The architecture initialization hasn't completed - punt -
1783 hope that the caller knows what they are doing. Once
1784 deprecated_set_gdbarch_data has been initialized, this can be
1785 changed to an internal error. */
1787 gdb_assert (gdbarch->data[data->index] != NULL);
1789 return gdbarch->data[data->index];
1793 /* Keep a registry of the architectures known by GDB. */
1795 struct gdbarch_registration
1797 enum bfd_architecture bfd_architecture;
1798 gdbarch_init_ftype *init;
1799 gdbarch_dump_tdep_ftype *dump_tdep;
1800 struct gdbarch_list *arches;
1801 struct gdbarch_registration *next;
1804 static struct gdbarch_registration *gdbarch_registry = NULL;
1807 append_name (const char ***buf, int *nr, const char *name)
1809 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1815 gdbarch_printable_names (void)
1817 /* Accumulate a list of names based on the registed list of
1819 enum bfd_architecture a;
1821 const char **arches = NULL;
1822 struct gdbarch_registration *rego;
1823 for (rego = gdbarch_registry;
1827 const struct bfd_arch_info *ap;
1828 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1830 internal_error (__FILE__, __LINE__,
1831 _("gdbarch_architecture_names: multi-arch unknown"));
1834 append_name (&arches, &nr_arches, ap->printable_name);
1839 append_name (&arches, &nr_arches, NULL);
1845 gdbarch_register (enum bfd_architecture bfd_architecture,
1846 gdbarch_init_ftype *init,
1847 gdbarch_dump_tdep_ftype *dump_tdep)
1849 struct gdbarch_registration **curr;
1850 const struct bfd_arch_info *bfd_arch_info;
1851 /* Check that BFD recognizes this architecture */
1852 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1853 if (bfd_arch_info == NULL)
1855 internal_error (__FILE__, __LINE__,
1856 _("gdbarch: Attempt to register unknown architecture (%d)"),
1859 /* Check that we haven't seen this architecture before */
1860 for (curr = &gdbarch_registry;
1862 curr = &(*curr)->next)
1864 if (bfd_architecture == (*curr)->bfd_architecture)
1865 internal_error (__FILE__, __LINE__,
1866 _("gdbarch: Duplicate registraration of architecture (%s)"),
1867 bfd_arch_info->printable_name);
1871 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1872 bfd_arch_info->printable_name,
1873 host_address_to_string (init));
1875 (*curr) = XMALLOC (struct gdbarch_registration);
1876 (*curr)->bfd_architecture = bfd_architecture;
1877 (*curr)->init = init;
1878 (*curr)->dump_tdep = dump_tdep;
1879 (*curr)->arches = NULL;
1880 (*curr)->next = NULL;
1884 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1885 gdbarch_init_ftype *init)
1887 gdbarch_register (bfd_architecture, init, NULL);
1891 /* Look for an architecture using gdbarch_info. */
1893 struct gdbarch_list *
1894 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1895 const struct gdbarch_info *info)
1897 for (; arches != NULL; arches = arches->next)
1899 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1901 if (info->byte_order != arches->gdbarch->byte_order)
1903 if (info->osabi != arches->gdbarch->osabi)
1905 if (info->target_desc != arches->gdbarch->target_desc)
1913 /* Find an architecture that matches the specified INFO. Create a new
1914 architecture if needed. Return that new architecture. */
1917 gdbarch_find_by_info (struct gdbarch_info info)
1919 struct gdbarch *new_gdbarch;
1920 struct gdbarch_registration *rego;
1922 /* Fill in missing parts of the INFO struct using a number of
1923 sources: "set ..."; INFOabfd supplied; and the global
1925 gdbarch_info_fill (&info);
1927 /* Must have found some sort of architecture. */
1928 gdb_assert (info.bfd_arch_info != NULL);
1932 fprintf_unfiltered (gdb_stdlog,
1933 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
1934 (info.bfd_arch_info != NULL
1935 ? info.bfd_arch_info->printable_name
1937 fprintf_unfiltered (gdb_stdlog,
1938 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
1940 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1941 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1943 fprintf_unfiltered (gdb_stdlog,
1944 "gdbarch_find_by_info: info.osabi %d (%s)\n",
1945 info.osabi, gdbarch_osabi_name (info.osabi));
1946 fprintf_unfiltered (gdb_stdlog,
1947 "gdbarch_find_by_info: info.abfd %s\n",
1948 host_address_to_string (info.abfd));
1949 fprintf_unfiltered (gdb_stdlog,
1950 "gdbarch_find_by_info: info.tdep_info %s\n",
1951 host_address_to_string (info.tdep_info));
1954 /* Find the tdep code that knows about this architecture. */
1955 for (rego = gdbarch_registry;
1958 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1963 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
1964 "No matching architecture\n");
1968 /* Ask the tdep code for an architecture that matches "info". */
1969 new_gdbarch = rego->init (info, rego->arches);
1971 /* Did the tdep code like it? No. Reject the change and revert to
1972 the old architecture. */
1973 if (new_gdbarch == NULL)
1976 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
1977 "Target rejected architecture\n");
1981 /* Is this a pre-existing architecture (as determined by already
1982 being initialized)? Move it to the front of the architecture
1983 list (keeping the list sorted Most Recently Used). */
1984 if (new_gdbarch->initialized_p)
1986 struct gdbarch_list **list;
1987 struct gdbarch_list *this;
1989 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
1990 "Previous architecture %s (%s) selected\n",
1991 host_address_to_string (new_gdbarch),
1992 new_gdbarch->bfd_arch_info->printable_name);
1993 /* Find the existing arch in the list. */
1994 for (list = ®o->arches;
1995 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
1996 list = &(*list)->next);
1997 /* It had better be in the list of architectures. */
1998 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2001 (*list) = this->next;
2002 /* Insert THIS at the front. */
2003 this->next = rego->arches;
2004 rego->arches = this;
2009 /* It's a new architecture. */
2011 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2012 "New architecture %s (%s) selected\n",
2013 host_address_to_string (new_gdbarch),
2014 new_gdbarch->bfd_arch_info->printable_name);
2016 /* Insert the new architecture into the front of the architecture
2017 list (keep the list sorted Most Recently Used). */
2019 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2020 this->next = rego->arches;
2021 this->gdbarch = new_gdbarch;
2022 rego->arches = this;
2025 /* Check that the newly installed architecture is valid. Plug in
2026 any post init values. */
2027 new_gdbarch->dump_tdep = rego->dump_tdep;
2028 verify_gdbarch (new_gdbarch);
2029 new_gdbarch->initialized_p = 1;
2032 gdbarch_dump (new_gdbarch, gdb_stdlog);
2037 /* Make the specified architecture current. */
2040 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2042 gdb_assert (new_gdbarch != NULL);
2043 gdb_assert (new_gdbarch->initialized_p);
2044 target_gdbarch = new_gdbarch;
2045 observer_notify_architecture_changed (new_gdbarch);
2046 registers_changed ();
2049 extern void _initialize_gdbarch (void);
2052 _initialize_gdbarch (void)
2054 struct cmd_list_element *c;
2056 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2057 Set architecture debugging."), _("\\
2058 Show architecture debugging."), _("\\
2059 When non-zero, architecture debugging is enabled."),
2062 &setdebuglist, &showdebuglist);
2068 #../move-if-change new-gdbarch.c gdbarch.c
2069 compare_new gdbarch.c