3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
6 # 2008, 2009, 2010 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 # Return the adjusted address and kind to use for Z0/Z1 packets.
490 # KIND is usually the memory length of the breakpoint, but may have a
491 # different target-specific meaning.
492 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
493 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
494 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
495 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
496 v:CORE_ADDR:decr_pc_after_break:::0:::0
498 # A function can be addressed by either it's "pointer" (possibly a
499 # descriptor address) or "entry point" (first executable instruction).
500 # The method "convert_from_func_ptr_addr" converting the former to the
501 # latter. gdbarch_deprecated_function_start_offset is being used to implement
502 # a simplified subset of that functionality - the function's address
503 # corresponds to the "function pointer" and the function's start
504 # corresponds to the "function entry point" - and hence is redundant.
506 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
508 # Return the remote protocol register number associated with this
509 # register. Normally the identity mapping.
510 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
512 # Fetch the target specific address used to represent a load module.
513 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
515 v:CORE_ADDR:frame_args_skip:::0:::0
516 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
517 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
518 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
519 # frame-base. Enable frame-base before frame-unwind.
520 F:int:frame_num_args:struct frame_info *frame:frame
522 M:CORE_ADDR:frame_align:CORE_ADDR address:address
523 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
524 v:int:frame_red_zone_size
526 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
527 # On some machines there are bits in addresses which are not really
528 # part of the address, but are used by the kernel, the hardware, etc.
529 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
530 # we get a "real" address such as one would find in a symbol table.
531 # This is used only for addresses of instructions, and even then I'm
532 # not sure it's used in all contexts. It exists to deal with there
533 # being a few stray bits in the PC which would mislead us, not as some
534 # sort of generic thing to handle alignment or segmentation (it's
535 # possible it should be in TARGET_READ_PC instead).
536 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
537 # It is not at all clear why gdbarch_smash_text_address is not folded into
538 # gdbarch_addr_bits_remove.
539 m:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
541 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
542 # indicates if the target needs software single step. An ISA method to
545 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
546 # breakpoints using the breakpoint system instead of blatting memory directly
549 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
550 # target can single step. If not, then implement single step using breakpoints.
552 # A return value of 1 means that the software_single_step breakpoints
553 # were inserted; 0 means they were not.
554 F:int:software_single_step:struct frame_info *frame:frame
556 # Return non-zero if the processor is executing a delay slot and a
557 # further single-step is needed before the instruction finishes.
558 M:int:single_step_through_delay:struct frame_info *frame:frame
559 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
560 # disassembler. Perhaps objdump can handle it?
561 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
562 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
565 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
566 # evaluates non-zero, this is the address where the debugger will place
567 # a step-resume breakpoint to get us past the dynamic linker.
568 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
569 # Some systems also have trampoline code for returning from shared libs.
570 m:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
572 # A target might have problems with watchpoints as soon as the stack
573 # frame of the current function has been destroyed. This mostly happens
574 # as the first action in a funtion's epilogue. in_function_epilogue_p()
575 # is defined to return a non-zero value if either the given addr is one
576 # instruction after the stack destroying instruction up to the trailing
577 # return instruction or if we can figure out that the stack frame has
578 # already been invalidated regardless of the value of addr. Targets
579 # which don't suffer from that problem could just let this functionality
581 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
582 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
583 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
584 v:int:cannot_step_breakpoint:::0:0::0
585 v:int:have_nonsteppable_watchpoint:::0:0::0
586 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
587 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
588 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
589 # Is a register in a group
590 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
591 # Fetch the pointer to the ith function argument.
592 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
594 # Return the appropriate register set for a core file section with
595 # name SECT_NAME and size SECT_SIZE.
596 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
598 # When creating core dumps, some systems encode the PID in addition
599 # to the LWP id in core file register section names. In those cases, the
600 # "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID]. This setting
601 # is set to true for such architectures; false if "XXX" represents an LWP
602 # or thread id with no special encoding.
603 v:int:core_reg_section_encodes_pid:::0:0::0
605 # Supported register notes in a core file.
606 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
608 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
609 # core file into buffer READBUF with length LEN.
610 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
612 # How the core_stratum layer converts a PTID from a core file to a
614 M:char *:core_pid_to_str:ptid_t ptid:ptid
616 # BFD target to use when generating a core file.
617 V:const char *:gcore_bfd_target:::0:0:::gdbarch->gcore_bfd_target
619 # If the elements of C++ vtables are in-place function descriptors rather
620 # than normal function pointers (which may point to code or a descriptor),
622 v:int:vtable_function_descriptors:::0:0::0
624 # Set if the least significant bit of the delta is used instead of the least
625 # significant bit of the pfn for pointers to virtual member functions.
626 v:int:vbit_in_delta:::0:0::0
628 # Advance PC to next instruction in order to skip a permanent breakpoint.
629 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
631 # The maximum length of an instruction on this architecture.
632 V:ULONGEST:max_insn_length:::0:0
634 # Copy the instruction at FROM to TO, and make any adjustments
635 # necessary to single-step it at that address.
637 # REGS holds the state the thread's registers will have before
638 # executing the copied instruction; the PC in REGS will refer to FROM,
639 # not the copy at TO. The caller should update it to point at TO later.
641 # Return a pointer to data of the architecture's choice to be passed
642 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
643 # the instruction's effects have been completely simulated, with the
644 # resulting state written back to REGS.
646 # For a general explanation of displaced stepping and how GDB uses it,
647 # see the comments in infrun.c.
649 # The TO area is only guaranteed to have space for
650 # gdbarch_max_insn_length (arch) bytes, so this function must not
651 # write more bytes than that to that area.
653 # If you do not provide this function, GDB assumes that the
654 # architecture does not support displaced stepping.
656 # If your architecture doesn't need to adjust instructions before
657 # single-stepping them, consider using simple_displaced_step_copy_insn
659 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
661 # Return true if GDB should use hardware single-stepping to execute
662 # the displaced instruction identified by CLOSURE. If false,
663 # GDB will simply restart execution at the displaced instruction
664 # location, and it is up to the target to ensure GDB will receive
665 # control again (e.g. by placing a software breakpoint instruction
666 # into the displaced instruction buffer).
668 # The default implementation returns false on all targets that
669 # provide a gdbarch_software_single_step routine, and true otherwise.
670 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
672 # Fix up the state resulting from successfully single-stepping a
673 # displaced instruction, to give the result we would have gotten from
674 # stepping the instruction in its original location.
676 # REGS is the register state resulting from single-stepping the
677 # displaced instruction.
679 # CLOSURE is the result from the matching call to
680 # gdbarch_displaced_step_copy_insn.
682 # If you provide gdbarch_displaced_step_copy_insn.but not this
683 # function, then GDB assumes that no fixup is needed after
684 # single-stepping the instruction.
686 # For a general explanation of displaced stepping and how GDB uses it,
687 # see the comments in infrun.c.
688 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
690 # Free a closure returned by gdbarch_displaced_step_copy_insn.
692 # If you provide gdbarch_displaced_step_copy_insn, you must provide
693 # this function as well.
695 # If your architecture uses closures that don't need to be freed, then
696 # you can use simple_displaced_step_free_closure here.
698 # For a general explanation of displaced stepping and how GDB uses it,
699 # see the comments in infrun.c.
700 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
702 # Return the address of an appropriate place to put displaced
703 # instructions while we step over them. There need only be one such
704 # place, since we're only stepping one thread over a breakpoint at a
707 # For a general explanation of displaced stepping and how GDB uses it,
708 # see the comments in infrun.c.
709 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
711 # Refresh overlay mapped state for section OSECT.
712 F:void:overlay_update:struct obj_section *osect:osect
714 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
716 # Handle special encoding of static variables in stabs debug info.
717 F:char *:static_transform_name:char *name:name
718 # Set if the address in N_SO or N_FUN stabs may be zero.
719 v:int:sofun_address_maybe_missing:::0:0::0
721 # Parse the instruction at ADDR storing in the record execution log
722 # the registers REGCACHE and memory ranges that will be affected when
723 # the instruction executes, along with their current values.
724 # Return -1 if something goes wrong, 0 otherwise.
725 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
727 # Save process state after a signal.
728 # Return -1 if something goes wrong, 0 otherwise.
729 M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
731 # Signal translation: translate inferior's signal (host's) number into
732 # GDB's representation.
733 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
734 # Signal translation: translate GDB's signal number into inferior's host
736 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
738 # Extra signal info inspection.
740 # Return a type suitable to inspect extra signal information.
741 M:struct type *:get_siginfo_type:void:
743 # Record architecture-specific information from the symbol table.
744 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
746 # Function for the 'catch syscall' feature.
748 # Get architecture-specific system calls information from registers.
749 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
751 # True if the list of shared libraries is one and only for all
752 # processes, as opposed to a list of shared libraries per inferior.
753 # This usually means that all processes, although may or may not share
754 # an address space, will see the same set of symbols at the same
756 v:int:has_global_solist:::0:0::0
758 # On some targets, even though each inferior has its own private
759 # address space, the debug interface takes care of making breakpoints
760 # visible to all address spaces automatically. For such cases,
761 # this property should be set to true.
762 v:int:has_global_breakpoints:::0:0::0
764 # True if inferiors share an address space (e.g., uClinux).
765 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
767 # True if a fast tracepoint can be set at an address.
768 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
770 # Not NULL if a target has additonal field for qSupported.
771 v:const char *:qsupported:::0:0::0:gdbarch->qsupported
778 exec > new-gdbarch.log
779 function_list |
while do_read
782 ${class} ${returntype} ${function} ($formal)
786 eval echo \"\ \ \ \
${r}=\
${${r}}\"
788 if class_is_predicate_p
&& fallback_default_p
790 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
794 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
796 echo "Error: postdefault is useless when invalid_p=0" 1>&2
800 if class_is_multiarch_p
802 if class_is_predicate_p
; then :
803 elif test "x${predefault}" = "x"
805 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
814 compare_new gdbarch.log
820 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
822 /* Dynamic architecture support for GDB, the GNU debugger.
824 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
825 2007, 2008, 2009 Free Software Foundation, Inc.
827 This file is part of GDB.
829 This program is free software; you can redistribute it and/or modify
830 it under the terms of the GNU General Public License as published by
831 the Free Software Foundation; either version 3 of the License, or
832 (at your option) any later version.
834 This program is distributed in the hope that it will be useful,
835 but WITHOUT ANY WARRANTY; without even the implied warranty of
836 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
837 GNU General Public License for more details.
839 You should have received a copy of the GNU General Public License
840 along with this program. If not, see <http://www.gnu.org/licenses/>. */
842 /* This file was created with the aid of \`\`gdbarch.sh''.
844 The Bourne shell script \`\`gdbarch.sh'' creates the files
845 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
846 against the existing \`\`gdbarch.[hc]''. Any differences found
849 If editing this file, please also run gdbarch.sh and merge any
850 changes into that script. Conversely, when making sweeping changes
851 to this file, modifying gdbarch.sh and using its output may prove
873 struct minimal_symbol;
877 struct disassemble_info;
880 struct bp_target_info;
882 struct displaced_step_closure;
883 struct core_regset_section;
886 /* The architecture associated with the connection to the target.
888 The architecture vector provides some information that is really
889 a property of the target: The layout of certain packets, for instance;
890 or the solib_ops vector. Etc. To differentiate architecture accesses
891 to per-target properties from per-thread/per-frame/per-objfile properties,
892 accesses to per-target properties should be made through target_gdbarch.
894 Eventually, when support for multiple targets is implemented in
895 GDB, this global should be made target-specific. */
896 extern struct gdbarch *target_gdbarch;
902 printf "/* The following are pre-initialized by GDBARCH. */\n"
903 function_list |
while do_read
908 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
909 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
916 printf "/* The following are initialized by the target dependent code. */\n"
917 function_list |
while do_read
919 if [ -n "${comment}" ]
921 echo "${comment}" |
sed \
927 if class_is_predicate_p
930 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
932 if class_is_variable_p
935 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
936 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
938 if class_is_function_p
941 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
943 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
944 elif class_is_multiarch_p
946 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
948 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
950 if [ "x${formal}" = "xvoid" ]
952 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
954 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
956 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
963 /* Definition for an unknown syscall, used basically in error-cases. */
964 #define UNKNOWN_SYSCALL (-1)
966 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
969 /* Mechanism for co-ordinating the selection of a specific
972 GDB targets (*-tdep.c) can register an interest in a specific
973 architecture. Other GDB components can register a need to maintain
974 per-architecture data.
976 The mechanisms below ensures that there is only a loose connection
977 between the set-architecture command and the various GDB
978 components. Each component can independently register their need
979 to maintain architecture specific data with gdbarch.
983 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
986 The more traditional mega-struct containing architecture specific
987 data for all the various GDB components was also considered. Since
988 GDB is built from a variable number of (fairly independent)
989 components it was determined that the global aproach was not
993 /* Register a new architectural family with GDB.
995 Register support for the specified ARCHITECTURE with GDB. When
996 gdbarch determines that the specified architecture has been
997 selected, the corresponding INIT function is called.
1001 The INIT function takes two parameters: INFO which contains the
1002 information available to gdbarch about the (possibly new)
1003 architecture; ARCHES which is a list of the previously created
1004 \`\`struct gdbarch'' for this architecture.
1006 The INFO parameter is, as far as possible, be pre-initialized with
1007 information obtained from INFO.ABFD or the global defaults.
1009 The ARCHES parameter is a linked list (sorted most recently used)
1010 of all the previously created architures for this architecture
1011 family. The (possibly NULL) ARCHES->gdbarch can used to access
1012 values from the previously selected architecture for this
1013 architecture family.
1015 The INIT function shall return any of: NULL - indicating that it
1016 doesn't recognize the selected architecture; an existing \`\`struct
1017 gdbarch'' from the ARCHES list - indicating that the new
1018 architecture is just a synonym for an earlier architecture (see
1019 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1020 - that describes the selected architecture (see gdbarch_alloc()).
1022 The DUMP_TDEP function shall print out all target specific values.
1023 Care should be taken to ensure that the function works in both the
1024 multi-arch and non- multi-arch cases. */
1028 struct gdbarch *gdbarch;
1029 struct gdbarch_list *next;
1034 /* Use default: NULL (ZERO). */
1035 const struct bfd_arch_info *bfd_arch_info;
1037 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1040 int byte_order_for_code;
1042 /* Use default: NULL (ZERO). */
1045 /* Use default: NULL (ZERO). */
1046 struct gdbarch_tdep_info *tdep_info;
1048 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1049 enum gdb_osabi osabi;
1051 /* Use default: NULL (ZERO). */
1052 const struct target_desc *target_desc;
1055 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1056 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1058 /* DEPRECATED - use gdbarch_register() */
1059 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1061 extern void gdbarch_register (enum bfd_architecture architecture,
1062 gdbarch_init_ftype *,
1063 gdbarch_dump_tdep_ftype *);
1066 /* Return a freshly allocated, NULL terminated, array of the valid
1067 architecture names. Since architectures are registered during the
1068 _initialize phase this function only returns useful information
1069 once initialization has been completed. */
1071 extern const char **gdbarch_printable_names (void);
1074 /* Helper function. Search the list of ARCHES for a GDBARCH that
1075 matches the information provided by INFO. */
1077 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1080 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1081 basic initialization using values obtained from the INFO and TDEP
1082 parameters. set_gdbarch_*() functions are called to complete the
1083 initialization of the object. */
1085 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1088 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1089 It is assumed that the caller freeds the \`\`struct
1092 extern void gdbarch_free (struct gdbarch *);
1095 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1096 obstack. The memory is freed when the corresponding architecture
1099 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1100 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1101 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1104 /* Helper function. Force an update of the current architecture.
1106 The actual architecture selected is determined by INFO, \`\`(gdb) set
1107 architecture'' et.al., the existing architecture and BFD's default
1108 architecture. INFO should be initialized to zero and then selected
1109 fields should be updated.
1111 Returns non-zero if the update succeeds */
1113 extern int gdbarch_update_p (struct gdbarch_info info);
1116 /* Helper function. Find an architecture matching info.
1118 INFO should be initialized using gdbarch_info_init, relevant fields
1119 set, and then finished using gdbarch_info_fill.
1121 Returns the corresponding architecture, or NULL if no matching
1122 architecture was found. */
1124 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1127 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1129 FIXME: kettenis/20031124: Of the functions that follow, only
1130 gdbarch_from_bfd is supposed to survive. The others will
1131 dissappear since in the future GDB will (hopefully) be truly
1132 multi-arch. However, for now we're still stuck with the concept of
1133 a single active architecture. */
1135 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1138 /* Register per-architecture data-pointer.
1140 Reserve space for a per-architecture data-pointer. An identifier
1141 for the reserved data-pointer is returned. That identifer should
1142 be saved in a local static variable.
1144 Memory for the per-architecture data shall be allocated using
1145 gdbarch_obstack_zalloc. That memory will be deleted when the
1146 corresponding architecture object is deleted.
1148 When a previously created architecture is re-selected, the
1149 per-architecture data-pointer for that previous architecture is
1150 restored. INIT() is not re-called.
1152 Multiple registrarants for any architecture are allowed (and
1153 strongly encouraged). */
1155 struct gdbarch_data;
1157 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1158 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1159 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1160 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1161 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1162 struct gdbarch_data *data,
1165 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1168 /* Set the dynamic target-system-dependent parameters (architecture,
1169 byte-order, ...) using information found in the BFD */
1171 extern void set_gdbarch_from_file (bfd *);
1174 /* Initialize the current architecture to the "first" one we find on
1177 extern void initialize_current_architecture (void);
1179 /* gdbarch trace variable */
1180 extern int gdbarch_debug;
1182 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1187 #../move-if-change new-gdbarch.h gdbarch.h
1188 compare_new gdbarch.h
1195 exec > new-gdbarch.c
1200 #include "arch-utils.h"
1203 #include "inferior.h"
1206 #include "floatformat.h"
1208 #include "gdb_assert.h"
1209 #include "gdb_string.h"
1210 #include "reggroups.h"
1212 #include "gdb_obstack.h"
1213 #include "observer.h"
1214 #include "regcache.h"
1216 /* Static function declarations */
1218 static void alloc_gdbarch_data (struct gdbarch *);
1220 /* Non-zero if we want to trace architecture code. */
1222 #ifndef GDBARCH_DEBUG
1223 #define GDBARCH_DEBUG 0
1225 int gdbarch_debug = GDBARCH_DEBUG;
1227 show_gdbarch_debug (struct ui_file *file, int from_tty,
1228 struct cmd_list_element *c, const char *value)
1230 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1234 pformat (const struct floatformat **format)
1239 /* Just print out one of them - this is only for diagnostics. */
1240 return format[0]->name;
1245 # gdbarch open the gdbarch object
1247 printf "/* Maintain the struct gdbarch object */\n"
1249 printf "struct gdbarch\n"
1251 printf " /* Has this architecture been fully initialized? */\n"
1252 printf " int initialized_p;\n"
1254 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1255 printf " struct obstack *obstack;\n"
1257 printf " /* basic architectural information */\n"
1258 function_list |
while do_read
1262 printf " ${returntype} ${function};\n"
1266 printf " /* target specific vector. */\n"
1267 printf " struct gdbarch_tdep *tdep;\n"
1268 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1270 printf " /* per-architecture data-pointers */\n"
1271 printf " unsigned nr_data;\n"
1272 printf " void **data;\n"
1274 printf " /* per-architecture swap-regions */\n"
1275 printf " struct gdbarch_swap *swap;\n"
1278 /* Multi-arch values.
1280 When extending this structure you must:
1282 Add the field below.
1284 Declare set/get functions and define the corresponding
1287 gdbarch_alloc(): If zero/NULL is not a suitable default,
1288 initialize the new field.
1290 verify_gdbarch(): Confirm that the target updated the field
1293 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1296 \`\`startup_gdbarch()'': Append an initial value to the static
1297 variable (base values on the host's c-type system).
1299 get_gdbarch(): Implement the set/get functions (probably using
1300 the macro's as shortcuts).
1305 function_list |
while do_read
1307 if class_is_variable_p
1309 printf " ${returntype} ${function};\n"
1310 elif class_is_function_p
1312 printf " gdbarch_${function}_ftype *${function};\n"
1317 # A pre-initialized vector
1321 /* The default architecture uses host values (for want of a better
1325 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1327 printf "struct gdbarch startup_gdbarch =\n"
1329 printf " 1, /* Always initialized. */\n"
1330 printf " NULL, /* The obstack. */\n"
1331 printf " /* basic architecture information */\n"
1332 function_list |
while do_read
1336 printf " ${staticdefault}, /* ${function} */\n"
1340 /* target specific vector and its dump routine */
1342 /*per-architecture data-pointers and swap regions */
1344 /* Multi-arch values */
1346 function_list |
while do_read
1348 if class_is_function_p || class_is_variable_p
1350 printf " ${staticdefault}, /* ${function} */\n"
1354 /* startup_gdbarch() */
1357 struct gdbarch *target_gdbarch = &startup_gdbarch;
1360 # Create a new gdbarch struct
1363 /* Create a new \`\`struct gdbarch'' based on information provided by
1364 \`\`struct gdbarch_info''. */
1369 gdbarch_alloc (const struct gdbarch_info *info,
1370 struct gdbarch_tdep *tdep)
1372 struct gdbarch *gdbarch;
1374 /* Create an obstack for allocating all the per-architecture memory,
1375 then use that to allocate the architecture vector. */
1376 struct obstack *obstack = XMALLOC (struct obstack);
1377 obstack_init (obstack);
1378 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1379 memset (gdbarch, 0, sizeof (*gdbarch));
1380 gdbarch->obstack = obstack;
1382 alloc_gdbarch_data (gdbarch);
1384 gdbarch->tdep = tdep;
1387 function_list |
while do_read
1391 printf " gdbarch->${function} = info->${function};\n"
1395 printf " /* Force the explicit initialization of these. */\n"
1396 function_list |
while do_read
1398 if class_is_function_p || class_is_variable_p
1400 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1402 printf " gdbarch->${function} = ${predefault};\n"
1407 /* gdbarch_alloc() */
1413 # Free a gdbarch struct.
1417 /* Allocate extra space using the per-architecture obstack. */
1420 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1422 void *data = obstack_alloc (arch->obstack, size);
1423 memset (data, 0, size);
1428 /* Free a gdbarch struct. This should never happen in normal
1429 operation --- once you've created a gdbarch, you keep it around.
1430 However, if an architecture's init function encounters an error
1431 building the structure, it may need to clean up a partially
1432 constructed gdbarch. */
1435 gdbarch_free (struct gdbarch *arch)
1437 struct obstack *obstack;
1438 gdb_assert (arch != NULL);
1439 gdb_assert (!arch->initialized_p);
1440 obstack = arch->obstack;
1441 obstack_free (obstack, 0); /* Includes the ARCH. */
1446 # verify a new architecture
1450 /* Ensure that all values in a GDBARCH are reasonable. */
1453 verify_gdbarch (struct gdbarch *gdbarch)
1455 struct ui_file *log;
1456 struct cleanup *cleanups;
1459 log = mem_fileopen ();
1460 cleanups = make_cleanup_ui_file_delete (log);
1462 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1463 fprintf_unfiltered (log, "\n\tbyte-order");
1464 if (gdbarch->bfd_arch_info == NULL)
1465 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1466 /* Check those that need to be defined for the given multi-arch level. */
1468 function_list |
while do_read
1470 if class_is_function_p || class_is_variable_p
1472 if [ "x${invalid_p}" = "x0" ]
1474 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1475 elif class_is_predicate_p
1477 printf " /* Skip verify of ${function}, has predicate */\n"
1478 # FIXME: See do_read for potential simplification
1479 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1481 printf " if (${invalid_p})\n"
1482 printf " gdbarch->${function} = ${postdefault};\n"
1483 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1485 printf " if (gdbarch->${function} == ${predefault})\n"
1486 printf " gdbarch->${function} = ${postdefault};\n"
1487 elif [ -n "${postdefault}" ]
1489 printf " if (gdbarch->${function} == 0)\n"
1490 printf " gdbarch->${function} = ${postdefault};\n"
1491 elif [ -n "${invalid_p}" ]
1493 printf " if (${invalid_p})\n"
1494 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1495 elif [ -n "${predefault}" ]
1497 printf " if (gdbarch->${function} == ${predefault})\n"
1498 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1503 buf = ui_file_xstrdup (log, &length);
1504 make_cleanup (xfree, buf);
1506 internal_error (__FILE__, __LINE__,
1507 _("verify_gdbarch: the following are invalid ...%s"),
1509 do_cleanups (cleanups);
1513 # dump the structure
1517 /* Print out the details of the current architecture. */
1520 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1522 const char *gdb_nm_file = "<not-defined>";
1523 #if defined (GDB_NM_FILE)
1524 gdb_nm_file = GDB_NM_FILE;
1526 fprintf_unfiltered (file,
1527 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1530 function_list |
sort -t: -k 3 |
while do_read
1532 # First the predicate
1533 if class_is_predicate_p
1535 printf " fprintf_unfiltered (file,\n"
1536 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1537 printf " gdbarch_${function}_p (gdbarch));\n"
1539 # Print the corresponding value.
1540 if class_is_function_p
1542 printf " fprintf_unfiltered (file,\n"
1543 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1544 printf " host_address_to_string (gdbarch->${function}));\n"
1547 case "${print}:${returntype}" in
1550 print
="core_addr_to_string_nz (gdbarch->${function})"
1554 print
="plongest (gdbarch->${function})"
1560 printf " fprintf_unfiltered (file,\n"
1561 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1562 printf " ${print});\n"
1566 if (gdbarch->dump_tdep != NULL)
1567 gdbarch->dump_tdep (gdbarch, file);
1575 struct gdbarch_tdep *
1576 gdbarch_tdep (struct gdbarch *gdbarch)
1578 if (gdbarch_debug >= 2)
1579 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1580 return gdbarch->tdep;
1584 function_list |
while do_read
1586 if class_is_predicate_p
1590 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1592 printf " gdb_assert (gdbarch != NULL);\n"
1593 printf " return ${predicate};\n"
1596 if class_is_function_p
1599 printf "${returntype}\n"
1600 if [ "x${formal}" = "xvoid" ]
1602 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1604 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1607 printf " gdb_assert (gdbarch != NULL);\n"
1608 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1609 if class_is_predicate_p
&& test -n "${predefault}"
1611 # Allow a call to a function with a predicate.
1612 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1614 printf " if (gdbarch_debug >= 2)\n"
1615 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1616 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1618 if class_is_multiarch_p
1625 if class_is_multiarch_p
1627 params
="gdbarch, ${actual}"
1632 if [ "x${returntype}" = "xvoid" ]
1634 printf " gdbarch->${function} (${params});\n"
1636 printf " return gdbarch->${function} (${params});\n"
1641 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1642 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1644 printf " gdbarch->${function} = ${function};\n"
1646 elif class_is_variable_p
1649 printf "${returntype}\n"
1650 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1652 printf " gdb_assert (gdbarch != NULL);\n"
1653 if [ "x${invalid_p}" = "x0" ]
1655 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1656 elif [ -n "${invalid_p}" ]
1658 printf " /* Check variable is valid. */\n"
1659 printf " gdb_assert (!(${invalid_p}));\n"
1660 elif [ -n "${predefault}" ]
1662 printf " /* Check variable changed from pre-default. */\n"
1663 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1665 printf " if (gdbarch_debug >= 2)\n"
1666 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1667 printf " return gdbarch->${function};\n"
1671 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1672 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1674 printf " gdbarch->${function} = ${function};\n"
1676 elif class_is_info_p
1679 printf "${returntype}\n"
1680 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1682 printf " gdb_assert (gdbarch != NULL);\n"
1683 printf " if (gdbarch_debug >= 2)\n"
1684 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1685 printf " return gdbarch->${function};\n"
1690 # All the trailing guff
1694 /* Keep a registry of per-architecture data-pointers required by GDB
1701 gdbarch_data_pre_init_ftype *pre_init;
1702 gdbarch_data_post_init_ftype *post_init;
1705 struct gdbarch_data_registration
1707 struct gdbarch_data *data;
1708 struct gdbarch_data_registration *next;
1711 struct gdbarch_data_registry
1714 struct gdbarch_data_registration *registrations;
1717 struct gdbarch_data_registry gdbarch_data_registry =
1722 static struct gdbarch_data *
1723 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1724 gdbarch_data_post_init_ftype *post_init)
1726 struct gdbarch_data_registration **curr;
1727 /* Append the new registraration. */
1728 for (curr = &gdbarch_data_registry.registrations;
1730 curr = &(*curr)->next);
1731 (*curr) = XMALLOC (struct gdbarch_data_registration);
1732 (*curr)->next = NULL;
1733 (*curr)->data = XMALLOC (struct gdbarch_data);
1734 (*curr)->data->index = gdbarch_data_registry.nr++;
1735 (*curr)->data->pre_init = pre_init;
1736 (*curr)->data->post_init = post_init;
1737 (*curr)->data->init_p = 1;
1738 return (*curr)->data;
1741 struct gdbarch_data *
1742 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1744 return gdbarch_data_register (pre_init, NULL);
1747 struct gdbarch_data *
1748 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1750 return gdbarch_data_register (NULL, post_init);
1753 /* Create/delete the gdbarch data vector. */
1756 alloc_gdbarch_data (struct gdbarch *gdbarch)
1758 gdb_assert (gdbarch->data == NULL);
1759 gdbarch->nr_data = gdbarch_data_registry.nr;
1760 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1763 /* Initialize the current value of the specified per-architecture
1767 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1768 struct gdbarch_data *data,
1771 gdb_assert (data->index < gdbarch->nr_data);
1772 gdb_assert (gdbarch->data[data->index] == NULL);
1773 gdb_assert (data->pre_init == NULL);
1774 gdbarch->data[data->index] = pointer;
1777 /* Return the current value of the specified per-architecture
1781 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1783 gdb_assert (data->index < gdbarch->nr_data);
1784 if (gdbarch->data[data->index] == NULL)
1786 /* The data-pointer isn't initialized, call init() to get a
1788 if (data->pre_init != NULL)
1789 /* Mid architecture creation: pass just the obstack, and not
1790 the entire architecture, as that way it isn't possible for
1791 pre-init code to refer to undefined architecture
1793 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1794 else if (gdbarch->initialized_p
1795 && data->post_init != NULL)
1796 /* Post architecture creation: pass the entire architecture
1797 (as all fields are valid), but be careful to also detect
1798 recursive references. */
1800 gdb_assert (data->init_p);
1802 gdbarch->data[data->index] = data->post_init (gdbarch);
1806 /* The architecture initialization hasn't completed - punt -
1807 hope that the caller knows what they are doing. Once
1808 deprecated_set_gdbarch_data has been initialized, this can be
1809 changed to an internal error. */
1811 gdb_assert (gdbarch->data[data->index] != NULL);
1813 return gdbarch->data[data->index];
1817 /* Keep a registry of the architectures known by GDB. */
1819 struct gdbarch_registration
1821 enum bfd_architecture bfd_architecture;
1822 gdbarch_init_ftype *init;
1823 gdbarch_dump_tdep_ftype *dump_tdep;
1824 struct gdbarch_list *arches;
1825 struct gdbarch_registration *next;
1828 static struct gdbarch_registration *gdbarch_registry = NULL;
1831 append_name (const char ***buf, int *nr, const char *name)
1833 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1839 gdbarch_printable_names (void)
1841 /* Accumulate a list of names based on the registed list of
1843 enum bfd_architecture a;
1845 const char **arches = NULL;
1846 struct gdbarch_registration *rego;
1847 for (rego = gdbarch_registry;
1851 const struct bfd_arch_info *ap;
1852 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1854 internal_error (__FILE__, __LINE__,
1855 _("gdbarch_architecture_names: multi-arch unknown"));
1858 append_name (&arches, &nr_arches, ap->printable_name);
1863 append_name (&arches, &nr_arches, NULL);
1869 gdbarch_register (enum bfd_architecture bfd_architecture,
1870 gdbarch_init_ftype *init,
1871 gdbarch_dump_tdep_ftype *dump_tdep)
1873 struct gdbarch_registration **curr;
1874 const struct bfd_arch_info *bfd_arch_info;
1875 /* Check that BFD recognizes this architecture */
1876 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1877 if (bfd_arch_info == NULL)
1879 internal_error (__FILE__, __LINE__,
1880 _("gdbarch: Attempt to register unknown architecture (%d)"),
1883 /* Check that we haven't seen this architecture before */
1884 for (curr = &gdbarch_registry;
1886 curr = &(*curr)->next)
1888 if (bfd_architecture == (*curr)->bfd_architecture)
1889 internal_error (__FILE__, __LINE__,
1890 _("gdbarch: Duplicate registraration of architecture (%s)"),
1891 bfd_arch_info->printable_name);
1895 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1896 bfd_arch_info->printable_name,
1897 host_address_to_string (init));
1899 (*curr) = XMALLOC (struct gdbarch_registration);
1900 (*curr)->bfd_architecture = bfd_architecture;
1901 (*curr)->init = init;
1902 (*curr)->dump_tdep = dump_tdep;
1903 (*curr)->arches = NULL;
1904 (*curr)->next = NULL;
1908 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1909 gdbarch_init_ftype *init)
1911 gdbarch_register (bfd_architecture, init, NULL);
1915 /* Look for an architecture using gdbarch_info. */
1917 struct gdbarch_list *
1918 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1919 const struct gdbarch_info *info)
1921 for (; arches != NULL; arches = arches->next)
1923 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1925 if (info->byte_order != arches->gdbarch->byte_order)
1927 if (info->osabi != arches->gdbarch->osabi)
1929 if (info->target_desc != arches->gdbarch->target_desc)
1937 /* Find an architecture that matches the specified INFO. Create a new
1938 architecture if needed. Return that new architecture. */
1941 gdbarch_find_by_info (struct gdbarch_info info)
1943 struct gdbarch *new_gdbarch;
1944 struct gdbarch_registration *rego;
1946 /* Fill in missing parts of the INFO struct using a number of
1947 sources: "set ..."; INFOabfd supplied; and the global
1949 gdbarch_info_fill (&info);
1951 /* Must have found some sort of architecture. */
1952 gdb_assert (info.bfd_arch_info != NULL);
1956 fprintf_unfiltered (gdb_stdlog,
1957 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
1958 (info.bfd_arch_info != NULL
1959 ? info.bfd_arch_info->printable_name
1961 fprintf_unfiltered (gdb_stdlog,
1962 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
1964 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1965 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1967 fprintf_unfiltered (gdb_stdlog,
1968 "gdbarch_find_by_info: info.osabi %d (%s)\n",
1969 info.osabi, gdbarch_osabi_name (info.osabi));
1970 fprintf_unfiltered (gdb_stdlog,
1971 "gdbarch_find_by_info: info.abfd %s\n",
1972 host_address_to_string (info.abfd));
1973 fprintf_unfiltered (gdb_stdlog,
1974 "gdbarch_find_by_info: info.tdep_info %s\n",
1975 host_address_to_string (info.tdep_info));
1978 /* Find the tdep code that knows about this architecture. */
1979 for (rego = gdbarch_registry;
1982 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1987 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
1988 "No matching architecture\n");
1992 /* Ask the tdep code for an architecture that matches "info". */
1993 new_gdbarch = rego->init (info, rego->arches);
1995 /* Did the tdep code like it? No. Reject the change and revert to
1996 the old architecture. */
1997 if (new_gdbarch == NULL)
2000 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2001 "Target rejected architecture\n");
2005 /* Is this a pre-existing architecture (as determined by already
2006 being initialized)? Move it to the front of the architecture
2007 list (keeping the list sorted Most Recently Used). */
2008 if (new_gdbarch->initialized_p)
2010 struct gdbarch_list **list;
2011 struct gdbarch_list *this;
2013 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2014 "Previous architecture %s (%s) selected\n",
2015 host_address_to_string (new_gdbarch),
2016 new_gdbarch->bfd_arch_info->printable_name);
2017 /* Find the existing arch in the list. */
2018 for (list = ®o->arches;
2019 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2020 list = &(*list)->next);
2021 /* It had better be in the list of architectures. */
2022 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2025 (*list) = this->next;
2026 /* Insert THIS at the front. */
2027 this->next = rego->arches;
2028 rego->arches = this;
2033 /* It's a new architecture. */
2035 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2036 "New architecture %s (%s) selected\n",
2037 host_address_to_string (new_gdbarch),
2038 new_gdbarch->bfd_arch_info->printable_name);
2040 /* Insert the new architecture into the front of the architecture
2041 list (keep the list sorted Most Recently Used). */
2043 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2044 this->next = rego->arches;
2045 this->gdbarch = new_gdbarch;
2046 rego->arches = this;
2049 /* Check that the newly installed architecture is valid. Plug in
2050 any post init values. */
2051 new_gdbarch->dump_tdep = rego->dump_tdep;
2052 verify_gdbarch (new_gdbarch);
2053 new_gdbarch->initialized_p = 1;
2056 gdbarch_dump (new_gdbarch, gdb_stdlog);
2061 /* Make the specified architecture current. */
2064 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2066 gdb_assert (new_gdbarch != NULL);
2067 gdb_assert (new_gdbarch->initialized_p);
2068 target_gdbarch = new_gdbarch;
2069 observer_notify_architecture_changed (new_gdbarch);
2070 registers_changed ();
2073 extern void _initialize_gdbarch (void);
2076 _initialize_gdbarch (void)
2078 struct cmd_list_element *c;
2080 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2081 Set architecture debugging."), _("\\
2082 Show architecture debugging."), _("\\
2083 When non-zero, architecture debugging is enabled."),
2086 &setdebuglist, &showdebuglist);
2092 #../move-if-change new-gdbarch.c gdbarch.c
2093 compare_new gdbarch.c