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 # Relocate an instruction to execute at a different address. OLDLOC
712 # is the address in the inferior memory where the instruction to
713 # relocate is currently at. On input, TO points to the destination
714 # where we want the instruction to be copied (and possibly adjusted)
715 # to. On output, it points to one past the end of the resulting
716 # instruction(s). The effect of executing the instruction at TO shall
717 # be the same as if executing it at FROM. For example, call
718 # instructions that implicitly push the return address on the stack
719 # should be adjusted to return to the instruction after OLDLOC;
720 # relative branches, and other PC-relative instructions need the
721 # offset adjusted; etc.
722 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
724 # Refresh overlay mapped state for section OSECT.
725 F:void:overlay_update:struct obj_section *osect:osect
727 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
729 # Handle special encoding of static variables in stabs debug info.
730 F:char *:static_transform_name:char *name:name
731 # Set if the address in N_SO or N_FUN stabs may be zero.
732 v:int:sofun_address_maybe_missing:::0:0::0
734 # Parse the instruction at ADDR storing in the record execution log
735 # the registers REGCACHE and memory ranges that will be affected when
736 # the instruction executes, along with their current values.
737 # Return -1 if something goes wrong, 0 otherwise.
738 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
740 # Save process state after a signal.
741 # Return -1 if something goes wrong, 0 otherwise.
742 M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
744 # Signal translation: translate inferior's signal (host's) number into
745 # GDB's representation.
746 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
747 # Signal translation: translate GDB's signal number into inferior's host
749 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
751 # Extra signal info inspection.
753 # Return a type suitable to inspect extra signal information.
754 M:struct type *:get_siginfo_type:void:
756 # Record architecture-specific information from the symbol table.
757 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
759 # Function for the 'catch syscall' feature.
761 # Get architecture-specific system calls information from registers.
762 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
764 # True if the list of shared libraries is one and only for all
765 # processes, as opposed to a list of shared libraries per inferior.
766 # This usually means that all processes, although may or may not share
767 # an address space, will see the same set of symbols at the same
769 v:int:has_global_solist:::0:0::0
771 # On some targets, even though each inferior has its own private
772 # address space, the debug interface takes care of making breakpoints
773 # visible to all address spaces automatically. For such cases,
774 # this property should be set to true.
775 v:int:has_global_breakpoints:::0:0::0
777 # True if inferiors share an address space (e.g., uClinux).
778 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
780 # True if a fast tracepoint can be set at an address.
781 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
783 # Return the "auto" target charset.
784 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
785 # Return the "auto" target wide charset.
786 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
788 # If non-empty, this is a file extension that will be opened in place
789 # of the file extension reported by the shared library list.
791 # This is most useful for toolchains that use a post-linker tool,
792 # where the names of the files run on the target differ in extension
793 # compared to the names of the files GDB should load for debug info.
794 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
796 # If true, the target OS has DOS-based file system semantics. That
797 # is, absolute paths include a drive name, and the backslash is
798 # considered a directory separator.
799 v:int:has_dos_based_file_system:::0:0::0
806 exec > new-gdbarch.log
807 function_list |
while do_read
810 ${class} ${returntype} ${function} ($formal)
814 eval echo \"\ \ \ \
${r}=\
${${r}}\"
816 if class_is_predicate_p
&& fallback_default_p
818 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
822 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
824 echo "Error: postdefault is useless when invalid_p=0" 1>&2
828 if class_is_multiarch_p
830 if class_is_predicate_p
; then :
831 elif test "x${predefault}" = "x"
833 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
842 compare_new gdbarch.log
848 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
850 /* Dynamic architecture support for GDB, the GNU debugger.
852 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
853 2007, 2008, 2009 Free Software Foundation, Inc.
855 This file is part of GDB.
857 This program is free software; you can redistribute it and/or modify
858 it under the terms of the GNU General Public License as published by
859 the Free Software Foundation; either version 3 of the License, or
860 (at your option) any later version.
862 This program is distributed in the hope that it will be useful,
863 but WITHOUT ANY WARRANTY; without even the implied warranty of
864 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
865 GNU General Public License for more details.
867 You should have received a copy of the GNU General Public License
868 along with this program. If not, see <http://www.gnu.org/licenses/>. */
870 /* This file was created with the aid of \`\`gdbarch.sh''.
872 The Bourne shell script \`\`gdbarch.sh'' creates the files
873 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
874 against the existing \`\`gdbarch.[hc]''. Any differences found
877 If editing this file, please also run gdbarch.sh and merge any
878 changes into that script. Conversely, when making sweeping changes
879 to this file, modifying gdbarch.sh and using its output may prove
901 struct minimal_symbol;
905 struct disassemble_info;
908 struct bp_target_info;
910 struct displaced_step_closure;
911 struct core_regset_section;
914 /* The architecture associated with the connection to the target.
916 The architecture vector provides some information that is really
917 a property of the target: The layout of certain packets, for instance;
918 or the solib_ops vector. Etc. To differentiate architecture accesses
919 to per-target properties from per-thread/per-frame/per-objfile properties,
920 accesses to per-target properties should be made through target_gdbarch.
922 Eventually, when support for multiple targets is implemented in
923 GDB, this global should be made target-specific. */
924 extern struct gdbarch *target_gdbarch;
930 printf "/* The following are pre-initialized by GDBARCH. */\n"
931 function_list |
while do_read
936 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
937 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
944 printf "/* The following are initialized by the target dependent code. */\n"
945 function_list |
while do_read
947 if [ -n "${comment}" ]
949 echo "${comment}" |
sed \
955 if class_is_predicate_p
958 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
960 if class_is_variable_p
963 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
964 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
966 if class_is_function_p
969 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
971 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
972 elif class_is_multiarch_p
974 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
976 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
978 if [ "x${formal}" = "xvoid" ]
980 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
982 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
984 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
991 /* Definition for an unknown syscall, used basically in error-cases. */
992 #define UNKNOWN_SYSCALL (-1)
994 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
997 /* Mechanism for co-ordinating the selection of a specific
1000 GDB targets (*-tdep.c) can register an interest in a specific
1001 architecture. Other GDB components can register a need to maintain
1002 per-architecture data.
1004 The mechanisms below ensures that there is only a loose connection
1005 between the set-architecture command and the various GDB
1006 components. Each component can independently register their need
1007 to maintain architecture specific data with gdbarch.
1011 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1014 The more traditional mega-struct containing architecture specific
1015 data for all the various GDB components was also considered. Since
1016 GDB is built from a variable number of (fairly independent)
1017 components it was determined that the global aproach was not
1021 /* Register a new architectural family with GDB.
1023 Register support for the specified ARCHITECTURE with GDB. When
1024 gdbarch determines that the specified architecture has been
1025 selected, the corresponding INIT function is called.
1029 The INIT function takes two parameters: INFO which contains the
1030 information available to gdbarch about the (possibly new)
1031 architecture; ARCHES which is a list of the previously created
1032 \`\`struct gdbarch'' for this architecture.
1034 The INFO parameter is, as far as possible, be pre-initialized with
1035 information obtained from INFO.ABFD or the global defaults.
1037 The ARCHES parameter is a linked list (sorted most recently used)
1038 of all the previously created architures for this architecture
1039 family. The (possibly NULL) ARCHES->gdbarch can used to access
1040 values from the previously selected architecture for this
1041 architecture family.
1043 The INIT function shall return any of: NULL - indicating that it
1044 doesn't recognize the selected architecture; an existing \`\`struct
1045 gdbarch'' from the ARCHES list - indicating that the new
1046 architecture is just a synonym for an earlier architecture (see
1047 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1048 - that describes the selected architecture (see gdbarch_alloc()).
1050 The DUMP_TDEP function shall print out all target specific values.
1051 Care should be taken to ensure that the function works in both the
1052 multi-arch and non- multi-arch cases. */
1056 struct gdbarch *gdbarch;
1057 struct gdbarch_list *next;
1062 /* Use default: NULL (ZERO). */
1063 const struct bfd_arch_info *bfd_arch_info;
1065 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1068 int byte_order_for_code;
1070 /* Use default: NULL (ZERO). */
1073 /* Use default: NULL (ZERO). */
1074 struct gdbarch_tdep_info *tdep_info;
1076 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1077 enum gdb_osabi osabi;
1079 /* Use default: NULL (ZERO). */
1080 const struct target_desc *target_desc;
1083 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1084 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1086 /* DEPRECATED - use gdbarch_register() */
1087 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1089 extern void gdbarch_register (enum bfd_architecture architecture,
1090 gdbarch_init_ftype *,
1091 gdbarch_dump_tdep_ftype *);
1094 /* Return a freshly allocated, NULL terminated, array of the valid
1095 architecture names. Since architectures are registered during the
1096 _initialize phase this function only returns useful information
1097 once initialization has been completed. */
1099 extern const char **gdbarch_printable_names (void);
1102 /* Helper function. Search the list of ARCHES for a GDBARCH that
1103 matches the information provided by INFO. */
1105 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1108 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1109 basic initialization using values obtained from the INFO and TDEP
1110 parameters. set_gdbarch_*() functions are called to complete the
1111 initialization of the object. */
1113 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1116 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1117 It is assumed that the caller freeds the \`\`struct
1120 extern void gdbarch_free (struct gdbarch *);
1123 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1124 obstack. The memory is freed when the corresponding architecture
1127 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1128 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1129 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1132 /* Helper function. Force an update of the current architecture.
1134 The actual architecture selected is determined by INFO, \`\`(gdb) set
1135 architecture'' et.al., the existing architecture and BFD's default
1136 architecture. INFO should be initialized to zero and then selected
1137 fields should be updated.
1139 Returns non-zero if the update succeeds */
1141 extern int gdbarch_update_p (struct gdbarch_info info);
1144 /* Helper function. Find an architecture matching info.
1146 INFO should be initialized using gdbarch_info_init, relevant fields
1147 set, and then finished using gdbarch_info_fill.
1149 Returns the corresponding architecture, or NULL if no matching
1150 architecture was found. */
1152 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1155 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1157 FIXME: kettenis/20031124: Of the functions that follow, only
1158 gdbarch_from_bfd is supposed to survive. The others will
1159 dissappear since in the future GDB will (hopefully) be truly
1160 multi-arch. However, for now we're still stuck with the concept of
1161 a single active architecture. */
1163 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1166 /* Register per-architecture data-pointer.
1168 Reserve space for a per-architecture data-pointer. An identifier
1169 for the reserved data-pointer is returned. That identifer should
1170 be saved in a local static variable.
1172 Memory for the per-architecture data shall be allocated using
1173 gdbarch_obstack_zalloc. That memory will be deleted when the
1174 corresponding architecture object is deleted.
1176 When a previously created architecture is re-selected, the
1177 per-architecture data-pointer for that previous architecture is
1178 restored. INIT() is not re-called.
1180 Multiple registrarants for any architecture are allowed (and
1181 strongly encouraged). */
1183 struct gdbarch_data;
1185 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1186 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1187 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1188 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1189 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1190 struct gdbarch_data *data,
1193 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1196 /* Set the dynamic target-system-dependent parameters (architecture,
1197 byte-order, ...) using information found in the BFD */
1199 extern void set_gdbarch_from_file (bfd *);
1202 /* Initialize the current architecture to the "first" one we find on
1205 extern void initialize_current_architecture (void);
1207 /* gdbarch trace variable */
1208 extern int gdbarch_debug;
1210 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1215 #../move-if-change new-gdbarch.h gdbarch.h
1216 compare_new gdbarch.h
1223 exec > new-gdbarch.c
1228 #include "arch-utils.h"
1231 #include "inferior.h"
1234 #include "floatformat.h"
1236 #include "gdb_assert.h"
1237 #include "gdb_string.h"
1238 #include "reggroups.h"
1240 #include "gdb_obstack.h"
1241 #include "observer.h"
1242 #include "regcache.h"
1244 /* Static function declarations */
1246 static void alloc_gdbarch_data (struct gdbarch *);
1248 /* Non-zero if we want to trace architecture code. */
1250 #ifndef GDBARCH_DEBUG
1251 #define GDBARCH_DEBUG 0
1253 int gdbarch_debug = GDBARCH_DEBUG;
1255 show_gdbarch_debug (struct ui_file *file, int from_tty,
1256 struct cmd_list_element *c, const char *value)
1258 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1262 pformat (const struct floatformat **format)
1267 /* Just print out one of them - this is only for diagnostics. */
1268 return format[0]->name;
1272 pstring (const char *string)
1281 # gdbarch open the gdbarch object
1283 printf "/* Maintain the struct gdbarch object */\n"
1285 printf "struct gdbarch\n"
1287 printf " /* Has this architecture been fully initialized? */\n"
1288 printf " int initialized_p;\n"
1290 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1291 printf " struct obstack *obstack;\n"
1293 printf " /* basic architectural information */\n"
1294 function_list |
while do_read
1298 printf " ${returntype} ${function};\n"
1302 printf " /* target specific vector. */\n"
1303 printf " struct gdbarch_tdep *tdep;\n"
1304 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1306 printf " /* per-architecture data-pointers */\n"
1307 printf " unsigned nr_data;\n"
1308 printf " void **data;\n"
1310 printf " /* per-architecture swap-regions */\n"
1311 printf " struct gdbarch_swap *swap;\n"
1314 /* Multi-arch values.
1316 When extending this structure you must:
1318 Add the field below.
1320 Declare set/get functions and define the corresponding
1323 gdbarch_alloc(): If zero/NULL is not a suitable default,
1324 initialize the new field.
1326 verify_gdbarch(): Confirm that the target updated the field
1329 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1332 \`\`startup_gdbarch()'': Append an initial value to the static
1333 variable (base values on the host's c-type system).
1335 get_gdbarch(): Implement the set/get functions (probably using
1336 the macro's as shortcuts).
1341 function_list |
while do_read
1343 if class_is_variable_p
1345 printf " ${returntype} ${function};\n"
1346 elif class_is_function_p
1348 printf " gdbarch_${function}_ftype *${function};\n"
1353 # A pre-initialized vector
1357 /* The default architecture uses host values (for want of a better
1361 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1363 printf "struct gdbarch startup_gdbarch =\n"
1365 printf " 1, /* Always initialized. */\n"
1366 printf " NULL, /* The obstack. */\n"
1367 printf " /* basic architecture information */\n"
1368 function_list |
while do_read
1372 printf " ${staticdefault}, /* ${function} */\n"
1376 /* target specific vector and its dump routine */
1378 /*per-architecture data-pointers and swap regions */
1380 /* Multi-arch values */
1382 function_list |
while do_read
1384 if class_is_function_p || class_is_variable_p
1386 printf " ${staticdefault}, /* ${function} */\n"
1390 /* startup_gdbarch() */
1393 struct gdbarch *target_gdbarch = &startup_gdbarch;
1396 # Create a new gdbarch struct
1399 /* Create a new \`\`struct gdbarch'' based on information provided by
1400 \`\`struct gdbarch_info''. */
1405 gdbarch_alloc (const struct gdbarch_info *info,
1406 struct gdbarch_tdep *tdep)
1408 struct gdbarch *gdbarch;
1410 /* Create an obstack for allocating all the per-architecture memory,
1411 then use that to allocate the architecture vector. */
1412 struct obstack *obstack = XMALLOC (struct obstack);
1413 obstack_init (obstack);
1414 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1415 memset (gdbarch, 0, sizeof (*gdbarch));
1416 gdbarch->obstack = obstack;
1418 alloc_gdbarch_data (gdbarch);
1420 gdbarch->tdep = tdep;
1423 function_list |
while do_read
1427 printf " gdbarch->${function} = info->${function};\n"
1431 printf " /* Force the explicit initialization of these. */\n"
1432 function_list |
while do_read
1434 if class_is_function_p || class_is_variable_p
1436 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1438 printf " gdbarch->${function} = ${predefault};\n"
1443 /* gdbarch_alloc() */
1449 # Free a gdbarch struct.
1453 /* Allocate extra space using the per-architecture obstack. */
1456 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1458 void *data = obstack_alloc (arch->obstack, size);
1460 memset (data, 0, size);
1465 /* Free a gdbarch struct. This should never happen in normal
1466 operation --- once you've created a gdbarch, you keep it around.
1467 However, if an architecture's init function encounters an error
1468 building the structure, it may need to clean up a partially
1469 constructed gdbarch. */
1472 gdbarch_free (struct gdbarch *arch)
1474 struct obstack *obstack;
1476 gdb_assert (arch != NULL);
1477 gdb_assert (!arch->initialized_p);
1478 obstack = arch->obstack;
1479 obstack_free (obstack, 0); /* Includes the ARCH. */
1484 # verify a new architecture
1488 /* Ensure that all values in a GDBARCH are reasonable. */
1491 verify_gdbarch (struct gdbarch *gdbarch)
1493 struct ui_file *log;
1494 struct cleanup *cleanups;
1498 log = mem_fileopen ();
1499 cleanups = make_cleanup_ui_file_delete (log);
1501 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1502 fprintf_unfiltered (log, "\n\tbyte-order");
1503 if (gdbarch->bfd_arch_info == NULL)
1504 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1505 /* Check those that need to be defined for the given multi-arch level. */
1507 function_list |
while do_read
1509 if class_is_function_p || class_is_variable_p
1511 if [ "x${invalid_p}" = "x0" ]
1513 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1514 elif class_is_predicate_p
1516 printf " /* Skip verify of ${function}, has predicate */\n"
1517 # FIXME: See do_read for potential simplification
1518 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1520 printf " if (${invalid_p})\n"
1521 printf " gdbarch->${function} = ${postdefault};\n"
1522 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1524 printf " if (gdbarch->${function} == ${predefault})\n"
1525 printf " gdbarch->${function} = ${postdefault};\n"
1526 elif [ -n "${postdefault}" ]
1528 printf " if (gdbarch->${function} == 0)\n"
1529 printf " gdbarch->${function} = ${postdefault};\n"
1530 elif [ -n "${invalid_p}" ]
1532 printf " if (${invalid_p})\n"
1533 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1534 elif [ -n "${predefault}" ]
1536 printf " if (gdbarch->${function} == ${predefault})\n"
1537 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1542 buf = ui_file_xstrdup (log, &length);
1543 make_cleanup (xfree, buf);
1545 internal_error (__FILE__, __LINE__,
1546 _("verify_gdbarch: the following are invalid ...%s"),
1548 do_cleanups (cleanups);
1552 # dump the structure
1556 /* Print out the details of the current architecture. */
1559 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1561 const char *gdb_nm_file = "<not-defined>";
1563 #if defined (GDB_NM_FILE)
1564 gdb_nm_file = GDB_NM_FILE;
1566 fprintf_unfiltered (file,
1567 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1570 function_list |
sort -t: -k 3 |
while do_read
1572 # First the predicate
1573 if class_is_predicate_p
1575 printf " fprintf_unfiltered (file,\n"
1576 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1577 printf " gdbarch_${function}_p (gdbarch));\n"
1579 # Print the corresponding value.
1580 if class_is_function_p
1582 printf " fprintf_unfiltered (file,\n"
1583 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1584 printf " host_address_to_string (gdbarch->${function}));\n"
1587 case "${print}:${returntype}" in
1590 print
="core_addr_to_string_nz (gdbarch->${function})"
1594 print
="plongest (gdbarch->${function})"
1600 printf " fprintf_unfiltered (file,\n"
1601 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1602 printf " ${print});\n"
1606 if (gdbarch->dump_tdep != NULL)
1607 gdbarch->dump_tdep (gdbarch, file);
1615 struct gdbarch_tdep *
1616 gdbarch_tdep (struct gdbarch *gdbarch)
1618 if (gdbarch_debug >= 2)
1619 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1620 return gdbarch->tdep;
1624 function_list |
while do_read
1626 if class_is_predicate_p
1630 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1632 printf " gdb_assert (gdbarch != NULL);\n"
1633 printf " return ${predicate};\n"
1636 if class_is_function_p
1639 printf "${returntype}\n"
1640 if [ "x${formal}" = "xvoid" ]
1642 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1644 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1647 printf " gdb_assert (gdbarch != NULL);\n"
1648 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1649 if class_is_predicate_p
&& test -n "${predefault}"
1651 # Allow a call to a function with a predicate.
1652 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1654 printf " if (gdbarch_debug >= 2)\n"
1655 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1656 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1658 if class_is_multiarch_p
1665 if class_is_multiarch_p
1667 params
="gdbarch, ${actual}"
1672 if [ "x${returntype}" = "xvoid" ]
1674 printf " gdbarch->${function} (${params});\n"
1676 printf " return gdbarch->${function} (${params});\n"
1681 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1682 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1684 printf " gdbarch->${function} = ${function};\n"
1686 elif class_is_variable_p
1689 printf "${returntype}\n"
1690 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1692 printf " gdb_assert (gdbarch != NULL);\n"
1693 if [ "x${invalid_p}" = "x0" ]
1695 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1696 elif [ -n "${invalid_p}" ]
1698 printf " /* Check variable is valid. */\n"
1699 printf " gdb_assert (!(${invalid_p}));\n"
1700 elif [ -n "${predefault}" ]
1702 printf " /* Check variable changed from pre-default. */\n"
1703 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1705 printf " if (gdbarch_debug >= 2)\n"
1706 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1707 printf " return gdbarch->${function};\n"
1711 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1712 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1714 printf " gdbarch->${function} = ${function};\n"
1716 elif class_is_info_p
1719 printf "${returntype}\n"
1720 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1722 printf " gdb_assert (gdbarch != NULL);\n"
1723 printf " if (gdbarch_debug >= 2)\n"
1724 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1725 printf " return gdbarch->${function};\n"
1730 # All the trailing guff
1734 /* Keep a registry of per-architecture data-pointers required by GDB
1741 gdbarch_data_pre_init_ftype *pre_init;
1742 gdbarch_data_post_init_ftype *post_init;
1745 struct gdbarch_data_registration
1747 struct gdbarch_data *data;
1748 struct gdbarch_data_registration *next;
1751 struct gdbarch_data_registry
1754 struct gdbarch_data_registration *registrations;
1757 struct gdbarch_data_registry gdbarch_data_registry =
1762 static struct gdbarch_data *
1763 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1764 gdbarch_data_post_init_ftype *post_init)
1766 struct gdbarch_data_registration **curr;
1768 /* Append the new registration. */
1769 for (curr = &gdbarch_data_registry.registrations;
1771 curr = &(*curr)->next);
1772 (*curr) = XMALLOC (struct gdbarch_data_registration);
1773 (*curr)->next = NULL;
1774 (*curr)->data = XMALLOC (struct gdbarch_data);
1775 (*curr)->data->index = gdbarch_data_registry.nr++;
1776 (*curr)->data->pre_init = pre_init;
1777 (*curr)->data->post_init = post_init;
1778 (*curr)->data->init_p = 1;
1779 return (*curr)->data;
1782 struct gdbarch_data *
1783 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1785 return gdbarch_data_register (pre_init, NULL);
1788 struct gdbarch_data *
1789 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1791 return gdbarch_data_register (NULL, post_init);
1794 /* Create/delete the gdbarch data vector. */
1797 alloc_gdbarch_data (struct gdbarch *gdbarch)
1799 gdb_assert (gdbarch->data == NULL);
1800 gdbarch->nr_data = gdbarch_data_registry.nr;
1801 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1804 /* Initialize the current value of the specified per-architecture
1808 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1809 struct gdbarch_data *data,
1812 gdb_assert (data->index < gdbarch->nr_data);
1813 gdb_assert (gdbarch->data[data->index] == NULL);
1814 gdb_assert (data->pre_init == NULL);
1815 gdbarch->data[data->index] = pointer;
1818 /* Return the current value of the specified per-architecture
1822 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1824 gdb_assert (data->index < gdbarch->nr_data);
1825 if (gdbarch->data[data->index] == NULL)
1827 /* The data-pointer isn't initialized, call init() to get a
1829 if (data->pre_init != NULL)
1830 /* Mid architecture creation: pass just the obstack, and not
1831 the entire architecture, as that way it isn't possible for
1832 pre-init code to refer to undefined architecture
1834 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1835 else if (gdbarch->initialized_p
1836 && data->post_init != NULL)
1837 /* Post architecture creation: pass the entire architecture
1838 (as all fields are valid), but be careful to also detect
1839 recursive references. */
1841 gdb_assert (data->init_p);
1843 gdbarch->data[data->index] = data->post_init (gdbarch);
1847 /* The architecture initialization hasn't completed - punt -
1848 hope that the caller knows what they are doing. Once
1849 deprecated_set_gdbarch_data has been initialized, this can be
1850 changed to an internal error. */
1852 gdb_assert (gdbarch->data[data->index] != NULL);
1854 return gdbarch->data[data->index];
1858 /* Keep a registry of the architectures known by GDB. */
1860 struct gdbarch_registration
1862 enum bfd_architecture bfd_architecture;
1863 gdbarch_init_ftype *init;
1864 gdbarch_dump_tdep_ftype *dump_tdep;
1865 struct gdbarch_list *arches;
1866 struct gdbarch_registration *next;
1869 static struct gdbarch_registration *gdbarch_registry = NULL;
1872 append_name (const char ***buf, int *nr, const char *name)
1874 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1880 gdbarch_printable_names (void)
1882 /* Accumulate a list of names based on the registed list of
1885 const char **arches = NULL;
1886 struct gdbarch_registration *rego;
1888 for (rego = gdbarch_registry;
1892 const struct bfd_arch_info *ap;
1893 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1895 internal_error (__FILE__, __LINE__,
1896 _("gdbarch_architecture_names: multi-arch unknown"));
1899 append_name (&arches, &nr_arches, ap->printable_name);
1904 append_name (&arches, &nr_arches, NULL);
1910 gdbarch_register (enum bfd_architecture bfd_architecture,
1911 gdbarch_init_ftype *init,
1912 gdbarch_dump_tdep_ftype *dump_tdep)
1914 struct gdbarch_registration **curr;
1915 const struct bfd_arch_info *bfd_arch_info;
1917 /* Check that BFD recognizes this architecture */
1918 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1919 if (bfd_arch_info == NULL)
1921 internal_error (__FILE__, __LINE__,
1922 _("gdbarch: Attempt to register unknown architecture (%d)"),
1925 /* Check that we haven't seen this architecture before */
1926 for (curr = &gdbarch_registry;
1928 curr = &(*curr)->next)
1930 if (bfd_architecture == (*curr)->bfd_architecture)
1931 internal_error (__FILE__, __LINE__,
1932 _("gdbarch: Duplicate registraration of architecture (%s)"),
1933 bfd_arch_info->printable_name);
1937 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1938 bfd_arch_info->printable_name,
1939 host_address_to_string (init));
1941 (*curr) = XMALLOC (struct gdbarch_registration);
1942 (*curr)->bfd_architecture = bfd_architecture;
1943 (*curr)->init = init;
1944 (*curr)->dump_tdep = dump_tdep;
1945 (*curr)->arches = NULL;
1946 (*curr)->next = NULL;
1950 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1951 gdbarch_init_ftype *init)
1953 gdbarch_register (bfd_architecture, init, NULL);
1957 /* Look for an architecture using gdbarch_info. */
1959 struct gdbarch_list *
1960 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1961 const struct gdbarch_info *info)
1963 for (; arches != NULL; arches = arches->next)
1965 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1967 if (info->byte_order != arches->gdbarch->byte_order)
1969 if (info->osabi != arches->gdbarch->osabi)
1971 if (info->target_desc != arches->gdbarch->target_desc)
1979 /* Find an architecture that matches the specified INFO. Create a new
1980 architecture if needed. Return that new architecture. */
1983 gdbarch_find_by_info (struct gdbarch_info info)
1985 struct gdbarch *new_gdbarch;
1986 struct gdbarch_registration *rego;
1988 /* Fill in missing parts of the INFO struct using a number of
1989 sources: "set ..."; INFOabfd supplied; and the global
1991 gdbarch_info_fill (&info);
1993 /* Must have found some sort of architecture. */
1994 gdb_assert (info.bfd_arch_info != NULL);
1998 fprintf_unfiltered (gdb_stdlog,
1999 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2000 (info.bfd_arch_info != NULL
2001 ? info.bfd_arch_info->printable_name
2003 fprintf_unfiltered (gdb_stdlog,
2004 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2006 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2007 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2009 fprintf_unfiltered (gdb_stdlog,
2010 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2011 info.osabi, gdbarch_osabi_name (info.osabi));
2012 fprintf_unfiltered (gdb_stdlog,
2013 "gdbarch_find_by_info: info.abfd %s\n",
2014 host_address_to_string (info.abfd));
2015 fprintf_unfiltered (gdb_stdlog,
2016 "gdbarch_find_by_info: info.tdep_info %s\n",
2017 host_address_to_string (info.tdep_info));
2020 /* Find the tdep code that knows about this architecture. */
2021 for (rego = gdbarch_registry;
2024 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2029 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2030 "No matching architecture\n");
2034 /* Ask the tdep code for an architecture that matches "info". */
2035 new_gdbarch = rego->init (info, rego->arches);
2037 /* Did the tdep code like it? No. Reject the change and revert to
2038 the old architecture. */
2039 if (new_gdbarch == NULL)
2042 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2043 "Target rejected architecture\n");
2047 /* Is this a pre-existing architecture (as determined by already
2048 being initialized)? Move it to the front of the architecture
2049 list (keeping the list sorted Most Recently Used). */
2050 if (new_gdbarch->initialized_p)
2052 struct gdbarch_list **list;
2053 struct gdbarch_list *this;
2055 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2056 "Previous architecture %s (%s) selected\n",
2057 host_address_to_string (new_gdbarch),
2058 new_gdbarch->bfd_arch_info->printable_name);
2059 /* Find the existing arch in the list. */
2060 for (list = ®o->arches;
2061 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2062 list = &(*list)->next);
2063 /* It had better be in the list of architectures. */
2064 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2067 (*list) = this->next;
2068 /* Insert THIS at the front. */
2069 this->next = rego->arches;
2070 rego->arches = this;
2075 /* It's a new architecture. */
2077 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2078 "New architecture %s (%s) selected\n",
2079 host_address_to_string (new_gdbarch),
2080 new_gdbarch->bfd_arch_info->printable_name);
2082 /* Insert the new architecture into the front of the architecture
2083 list (keep the list sorted Most Recently Used). */
2085 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2086 this->next = rego->arches;
2087 this->gdbarch = new_gdbarch;
2088 rego->arches = this;
2091 /* Check that the newly installed architecture is valid. Plug in
2092 any post init values. */
2093 new_gdbarch->dump_tdep = rego->dump_tdep;
2094 verify_gdbarch (new_gdbarch);
2095 new_gdbarch->initialized_p = 1;
2098 gdbarch_dump (new_gdbarch, gdb_stdlog);
2103 /* Make the specified architecture current. */
2106 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2108 gdb_assert (new_gdbarch != NULL);
2109 gdb_assert (new_gdbarch->initialized_p);
2110 target_gdbarch = new_gdbarch;
2111 observer_notify_architecture_changed (new_gdbarch);
2112 registers_changed ();
2115 extern void _initialize_gdbarch (void);
2118 _initialize_gdbarch (void)
2120 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2121 Set architecture debugging."), _("\\
2122 Show architecture debugging."), _("\\
2123 When non-zero, architecture debugging is enabled."),
2126 &setdebuglist, &showdebuglist);
2132 #../move-if-change new-gdbarch.c gdbarch.c
2133 compare_new gdbarch.c