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
773 # Return the "auto" target charset.
774 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
775 # Return the "auto" target wide charset.
776 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
778 # If non-empty, this is a file extension that will be opened in place
779 # of the file extension reported by the shared library list.
781 # This is most useful for toolchains that use a post-linker tool,
782 # where the names of the files run on the target differ in extension
783 # compared to the names of the files GDB should load for debug info.
784 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
786 # If true, the target OS has DOS-based file system semantics. That
787 # is, absolute paths include a drive name, and the backslash is
788 # considered a directory separator.
789 v:int:has_dos_based_file_system:::0:0::0
796 exec > new-gdbarch.log
797 function_list |
while do_read
800 ${class} ${returntype} ${function} ($formal)
804 eval echo \"\ \ \ \
${r}=\
${${r}}\"
806 if class_is_predicate_p
&& fallback_default_p
808 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
812 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
814 echo "Error: postdefault is useless when invalid_p=0" 1>&2
818 if class_is_multiarch_p
820 if class_is_predicate_p
; then :
821 elif test "x${predefault}" = "x"
823 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
832 compare_new gdbarch.log
838 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
840 /* Dynamic architecture support for GDB, the GNU debugger.
842 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
843 2007, 2008, 2009 Free Software Foundation, Inc.
845 This file is part of GDB.
847 This program is free software; you can redistribute it and/or modify
848 it under the terms of the GNU General Public License as published by
849 the Free Software Foundation; either version 3 of the License, or
850 (at your option) any later version.
852 This program is distributed in the hope that it will be useful,
853 but WITHOUT ANY WARRANTY; without even the implied warranty of
854 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
855 GNU General Public License for more details.
857 You should have received a copy of the GNU General Public License
858 along with this program. If not, see <http://www.gnu.org/licenses/>. */
860 /* This file was created with the aid of \`\`gdbarch.sh''.
862 The Bourne shell script \`\`gdbarch.sh'' creates the files
863 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
864 against the existing \`\`gdbarch.[hc]''. Any differences found
867 If editing this file, please also run gdbarch.sh and merge any
868 changes into that script. Conversely, when making sweeping changes
869 to this file, modifying gdbarch.sh and using its output may prove
891 struct minimal_symbol;
895 struct disassemble_info;
898 struct bp_target_info;
900 struct displaced_step_closure;
901 struct core_regset_section;
904 /* The architecture associated with the connection to the target.
906 The architecture vector provides some information that is really
907 a property of the target: The layout of certain packets, for instance;
908 or the solib_ops vector. Etc. To differentiate architecture accesses
909 to per-target properties from per-thread/per-frame/per-objfile properties,
910 accesses to per-target properties should be made through target_gdbarch.
912 Eventually, when support for multiple targets is implemented in
913 GDB, this global should be made target-specific. */
914 extern struct gdbarch *target_gdbarch;
920 printf "/* The following are pre-initialized by GDBARCH. */\n"
921 function_list |
while do_read
926 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
927 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
934 printf "/* The following are initialized by the target dependent code. */\n"
935 function_list |
while do_read
937 if [ -n "${comment}" ]
939 echo "${comment}" |
sed \
945 if class_is_predicate_p
948 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
950 if class_is_variable_p
953 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
954 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
956 if class_is_function_p
959 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
961 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
962 elif class_is_multiarch_p
964 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
966 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
968 if [ "x${formal}" = "xvoid" ]
970 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
972 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
974 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
981 /* Definition for an unknown syscall, used basically in error-cases. */
982 #define UNKNOWN_SYSCALL (-1)
984 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
987 /* Mechanism for co-ordinating the selection of a specific
990 GDB targets (*-tdep.c) can register an interest in a specific
991 architecture. Other GDB components can register a need to maintain
992 per-architecture data.
994 The mechanisms below ensures that there is only a loose connection
995 between the set-architecture command and the various GDB
996 components. Each component can independently register their need
997 to maintain architecture specific data with gdbarch.
1001 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1004 The more traditional mega-struct containing architecture specific
1005 data for all the various GDB components was also considered. Since
1006 GDB is built from a variable number of (fairly independent)
1007 components it was determined that the global aproach was not
1011 /* Register a new architectural family with GDB.
1013 Register support for the specified ARCHITECTURE with GDB. When
1014 gdbarch determines that the specified architecture has been
1015 selected, the corresponding INIT function is called.
1019 The INIT function takes two parameters: INFO which contains the
1020 information available to gdbarch about the (possibly new)
1021 architecture; ARCHES which is a list of the previously created
1022 \`\`struct gdbarch'' for this architecture.
1024 The INFO parameter is, as far as possible, be pre-initialized with
1025 information obtained from INFO.ABFD or the global defaults.
1027 The ARCHES parameter is a linked list (sorted most recently used)
1028 of all the previously created architures for this architecture
1029 family. The (possibly NULL) ARCHES->gdbarch can used to access
1030 values from the previously selected architecture for this
1031 architecture family.
1033 The INIT function shall return any of: NULL - indicating that it
1034 doesn't recognize the selected architecture; an existing \`\`struct
1035 gdbarch'' from the ARCHES list - indicating that the new
1036 architecture is just a synonym for an earlier architecture (see
1037 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1038 - that describes the selected architecture (see gdbarch_alloc()).
1040 The DUMP_TDEP function shall print out all target specific values.
1041 Care should be taken to ensure that the function works in both the
1042 multi-arch and non- multi-arch cases. */
1046 struct gdbarch *gdbarch;
1047 struct gdbarch_list *next;
1052 /* Use default: NULL (ZERO). */
1053 const struct bfd_arch_info *bfd_arch_info;
1055 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1058 int byte_order_for_code;
1060 /* Use default: NULL (ZERO). */
1063 /* Use default: NULL (ZERO). */
1064 struct gdbarch_tdep_info *tdep_info;
1066 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1067 enum gdb_osabi osabi;
1069 /* Use default: NULL (ZERO). */
1070 const struct target_desc *target_desc;
1073 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1074 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1076 /* DEPRECATED - use gdbarch_register() */
1077 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1079 extern void gdbarch_register (enum bfd_architecture architecture,
1080 gdbarch_init_ftype *,
1081 gdbarch_dump_tdep_ftype *);
1084 /* Return a freshly allocated, NULL terminated, array of the valid
1085 architecture names. Since architectures are registered during the
1086 _initialize phase this function only returns useful information
1087 once initialization has been completed. */
1089 extern const char **gdbarch_printable_names (void);
1092 /* Helper function. Search the list of ARCHES for a GDBARCH that
1093 matches the information provided by INFO. */
1095 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1098 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1099 basic initialization using values obtained from the INFO and TDEP
1100 parameters. set_gdbarch_*() functions are called to complete the
1101 initialization of the object. */
1103 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1106 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1107 It is assumed that the caller freeds the \`\`struct
1110 extern void gdbarch_free (struct gdbarch *);
1113 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1114 obstack. The memory is freed when the corresponding architecture
1117 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1118 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1119 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1122 /* Helper function. Force an update of the current architecture.
1124 The actual architecture selected is determined by INFO, \`\`(gdb) set
1125 architecture'' et.al., the existing architecture and BFD's default
1126 architecture. INFO should be initialized to zero and then selected
1127 fields should be updated.
1129 Returns non-zero if the update succeeds */
1131 extern int gdbarch_update_p (struct gdbarch_info info);
1134 /* Helper function. Find an architecture matching info.
1136 INFO should be initialized using gdbarch_info_init, relevant fields
1137 set, and then finished using gdbarch_info_fill.
1139 Returns the corresponding architecture, or NULL if no matching
1140 architecture was found. */
1142 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1145 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1147 FIXME: kettenis/20031124: Of the functions that follow, only
1148 gdbarch_from_bfd is supposed to survive. The others will
1149 dissappear since in the future GDB will (hopefully) be truly
1150 multi-arch. However, for now we're still stuck with the concept of
1151 a single active architecture. */
1153 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1156 /* Register per-architecture data-pointer.
1158 Reserve space for a per-architecture data-pointer. An identifier
1159 for the reserved data-pointer is returned. That identifer should
1160 be saved in a local static variable.
1162 Memory for the per-architecture data shall be allocated using
1163 gdbarch_obstack_zalloc. That memory will be deleted when the
1164 corresponding architecture object is deleted.
1166 When a previously created architecture is re-selected, the
1167 per-architecture data-pointer for that previous architecture is
1168 restored. INIT() is not re-called.
1170 Multiple registrarants for any architecture are allowed (and
1171 strongly encouraged). */
1173 struct gdbarch_data;
1175 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1176 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1177 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1178 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1179 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1180 struct gdbarch_data *data,
1183 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1186 /* Set the dynamic target-system-dependent parameters (architecture,
1187 byte-order, ...) using information found in the BFD */
1189 extern void set_gdbarch_from_file (bfd *);
1192 /* Initialize the current architecture to the "first" one we find on
1195 extern void initialize_current_architecture (void);
1197 /* gdbarch trace variable */
1198 extern int gdbarch_debug;
1200 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1205 #../move-if-change new-gdbarch.h gdbarch.h
1206 compare_new gdbarch.h
1213 exec > new-gdbarch.c
1218 #include "arch-utils.h"
1221 #include "inferior.h"
1224 #include "floatformat.h"
1226 #include "gdb_assert.h"
1227 #include "gdb_string.h"
1228 #include "reggroups.h"
1230 #include "gdb_obstack.h"
1231 #include "observer.h"
1232 #include "regcache.h"
1234 /* Static function declarations */
1236 static void alloc_gdbarch_data (struct gdbarch *);
1238 /* Non-zero if we want to trace architecture code. */
1240 #ifndef GDBARCH_DEBUG
1241 #define GDBARCH_DEBUG 0
1243 int gdbarch_debug = GDBARCH_DEBUG;
1245 show_gdbarch_debug (struct ui_file *file, int from_tty,
1246 struct cmd_list_element *c, const char *value)
1248 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1252 pformat (const struct floatformat **format)
1257 /* Just print out one of them - this is only for diagnostics. */
1258 return format[0]->name;
1262 pstring (const char *string)
1271 # gdbarch open the gdbarch object
1273 printf "/* Maintain the struct gdbarch object */\n"
1275 printf "struct gdbarch\n"
1277 printf " /* Has this architecture been fully initialized? */\n"
1278 printf " int initialized_p;\n"
1280 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1281 printf " struct obstack *obstack;\n"
1283 printf " /* basic architectural information */\n"
1284 function_list |
while do_read
1288 printf " ${returntype} ${function};\n"
1292 printf " /* target specific vector. */\n"
1293 printf " struct gdbarch_tdep *tdep;\n"
1294 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1296 printf " /* per-architecture data-pointers */\n"
1297 printf " unsigned nr_data;\n"
1298 printf " void **data;\n"
1300 printf " /* per-architecture swap-regions */\n"
1301 printf " struct gdbarch_swap *swap;\n"
1304 /* Multi-arch values.
1306 When extending this structure you must:
1308 Add the field below.
1310 Declare set/get functions and define the corresponding
1313 gdbarch_alloc(): If zero/NULL is not a suitable default,
1314 initialize the new field.
1316 verify_gdbarch(): Confirm that the target updated the field
1319 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1322 \`\`startup_gdbarch()'': Append an initial value to the static
1323 variable (base values on the host's c-type system).
1325 get_gdbarch(): Implement the set/get functions (probably using
1326 the macro's as shortcuts).
1331 function_list |
while do_read
1333 if class_is_variable_p
1335 printf " ${returntype} ${function};\n"
1336 elif class_is_function_p
1338 printf " gdbarch_${function}_ftype *${function};\n"
1343 # A pre-initialized vector
1347 /* The default architecture uses host values (for want of a better
1351 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1353 printf "struct gdbarch startup_gdbarch =\n"
1355 printf " 1, /* Always initialized. */\n"
1356 printf " NULL, /* The obstack. */\n"
1357 printf " /* basic architecture information */\n"
1358 function_list |
while do_read
1362 printf " ${staticdefault}, /* ${function} */\n"
1366 /* target specific vector and its dump routine */
1368 /*per-architecture data-pointers and swap regions */
1370 /* Multi-arch values */
1372 function_list |
while do_read
1374 if class_is_function_p || class_is_variable_p
1376 printf " ${staticdefault}, /* ${function} */\n"
1380 /* startup_gdbarch() */
1383 struct gdbarch *target_gdbarch = &startup_gdbarch;
1386 # Create a new gdbarch struct
1389 /* Create a new \`\`struct gdbarch'' based on information provided by
1390 \`\`struct gdbarch_info''. */
1395 gdbarch_alloc (const struct gdbarch_info *info,
1396 struct gdbarch_tdep *tdep)
1398 struct gdbarch *gdbarch;
1400 /* Create an obstack for allocating all the per-architecture memory,
1401 then use that to allocate the architecture vector. */
1402 struct obstack *obstack = XMALLOC (struct obstack);
1403 obstack_init (obstack);
1404 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1405 memset (gdbarch, 0, sizeof (*gdbarch));
1406 gdbarch->obstack = obstack;
1408 alloc_gdbarch_data (gdbarch);
1410 gdbarch->tdep = tdep;
1413 function_list |
while do_read
1417 printf " gdbarch->${function} = info->${function};\n"
1421 printf " /* Force the explicit initialization of these. */\n"
1422 function_list |
while do_read
1424 if class_is_function_p || class_is_variable_p
1426 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1428 printf " gdbarch->${function} = ${predefault};\n"
1433 /* gdbarch_alloc() */
1439 # Free a gdbarch struct.
1443 /* Allocate extra space using the per-architecture obstack. */
1446 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1448 void *data = obstack_alloc (arch->obstack, size);
1449 memset (data, 0, size);
1454 /* Free a gdbarch struct. This should never happen in normal
1455 operation --- once you've created a gdbarch, you keep it around.
1456 However, if an architecture's init function encounters an error
1457 building the structure, it may need to clean up a partially
1458 constructed gdbarch. */
1461 gdbarch_free (struct gdbarch *arch)
1463 struct obstack *obstack;
1464 gdb_assert (arch != NULL);
1465 gdb_assert (!arch->initialized_p);
1466 obstack = arch->obstack;
1467 obstack_free (obstack, 0); /* Includes the ARCH. */
1472 # verify a new architecture
1476 /* Ensure that all values in a GDBARCH are reasonable. */
1479 verify_gdbarch (struct gdbarch *gdbarch)
1481 struct ui_file *log;
1482 struct cleanup *cleanups;
1485 log = mem_fileopen ();
1486 cleanups = make_cleanup_ui_file_delete (log);
1488 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1489 fprintf_unfiltered (log, "\n\tbyte-order");
1490 if (gdbarch->bfd_arch_info == NULL)
1491 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1492 /* Check those that need to be defined for the given multi-arch level. */
1494 function_list |
while do_read
1496 if class_is_function_p || class_is_variable_p
1498 if [ "x${invalid_p}" = "x0" ]
1500 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1501 elif class_is_predicate_p
1503 printf " /* Skip verify of ${function}, has predicate */\n"
1504 # FIXME: See do_read for potential simplification
1505 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1507 printf " if (${invalid_p})\n"
1508 printf " gdbarch->${function} = ${postdefault};\n"
1509 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1511 printf " if (gdbarch->${function} == ${predefault})\n"
1512 printf " gdbarch->${function} = ${postdefault};\n"
1513 elif [ -n "${postdefault}" ]
1515 printf " if (gdbarch->${function} == 0)\n"
1516 printf " gdbarch->${function} = ${postdefault};\n"
1517 elif [ -n "${invalid_p}" ]
1519 printf " if (${invalid_p})\n"
1520 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1521 elif [ -n "${predefault}" ]
1523 printf " if (gdbarch->${function} == ${predefault})\n"
1524 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1529 buf = ui_file_xstrdup (log, &length);
1530 make_cleanup (xfree, buf);
1532 internal_error (__FILE__, __LINE__,
1533 _("verify_gdbarch: the following are invalid ...%s"),
1535 do_cleanups (cleanups);
1539 # dump the structure
1543 /* Print out the details of the current architecture. */
1546 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1548 const char *gdb_nm_file = "<not-defined>";
1549 #if defined (GDB_NM_FILE)
1550 gdb_nm_file = GDB_NM_FILE;
1552 fprintf_unfiltered (file,
1553 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1556 function_list |
sort -t: -k 3 |
while do_read
1558 # First the predicate
1559 if class_is_predicate_p
1561 printf " fprintf_unfiltered (file,\n"
1562 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1563 printf " gdbarch_${function}_p (gdbarch));\n"
1565 # Print the corresponding value.
1566 if class_is_function_p
1568 printf " fprintf_unfiltered (file,\n"
1569 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1570 printf " host_address_to_string (gdbarch->${function}));\n"
1573 case "${print}:${returntype}" in
1576 print
="core_addr_to_string_nz (gdbarch->${function})"
1580 print
="plongest (gdbarch->${function})"
1586 printf " fprintf_unfiltered (file,\n"
1587 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1588 printf " ${print});\n"
1592 if (gdbarch->dump_tdep != NULL)
1593 gdbarch->dump_tdep (gdbarch, file);
1601 struct gdbarch_tdep *
1602 gdbarch_tdep (struct gdbarch *gdbarch)
1604 if (gdbarch_debug >= 2)
1605 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1606 return gdbarch->tdep;
1610 function_list |
while do_read
1612 if class_is_predicate_p
1616 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1618 printf " gdb_assert (gdbarch != NULL);\n"
1619 printf " return ${predicate};\n"
1622 if class_is_function_p
1625 printf "${returntype}\n"
1626 if [ "x${formal}" = "xvoid" ]
1628 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1630 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1633 printf " gdb_assert (gdbarch != NULL);\n"
1634 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1635 if class_is_predicate_p
&& test -n "${predefault}"
1637 # Allow a call to a function with a predicate.
1638 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1640 printf " if (gdbarch_debug >= 2)\n"
1641 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1642 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1644 if class_is_multiarch_p
1651 if class_is_multiarch_p
1653 params
="gdbarch, ${actual}"
1658 if [ "x${returntype}" = "xvoid" ]
1660 printf " gdbarch->${function} (${params});\n"
1662 printf " return gdbarch->${function} (${params});\n"
1667 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1668 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1670 printf " gdbarch->${function} = ${function};\n"
1672 elif class_is_variable_p
1675 printf "${returntype}\n"
1676 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1678 printf " gdb_assert (gdbarch != NULL);\n"
1679 if [ "x${invalid_p}" = "x0" ]
1681 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1682 elif [ -n "${invalid_p}" ]
1684 printf " /* Check variable is valid. */\n"
1685 printf " gdb_assert (!(${invalid_p}));\n"
1686 elif [ -n "${predefault}" ]
1688 printf " /* Check variable changed from pre-default. */\n"
1689 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1691 printf " if (gdbarch_debug >= 2)\n"
1692 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1693 printf " return gdbarch->${function};\n"
1697 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1698 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1700 printf " gdbarch->${function} = ${function};\n"
1702 elif class_is_info_p
1705 printf "${returntype}\n"
1706 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1708 printf " gdb_assert (gdbarch != NULL);\n"
1709 printf " if (gdbarch_debug >= 2)\n"
1710 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1711 printf " return gdbarch->${function};\n"
1716 # All the trailing guff
1720 /* Keep a registry of per-architecture data-pointers required by GDB
1727 gdbarch_data_pre_init_ftype *pre_init;
1728 gdbarch_data_post_init_ftype *post_init;
1731 struct gdbarch_data_registration
1733 struct gdbarch_data *data;
1734 struct gdbarch_data_registration *next;
1737 struct gdbarch_data_registry
1740 struct gdbarch_data_registration *registrations;
1743 struct gdbarch_data_registry gdbarch_data_registry =
1748 static struct gdbarch_data *
1749 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1750 gdbarch_data_post_init_ftype *post_init)
1752 struct gdbarch_data_registration **curr;
1753 /* Append the new registraration. */
1754 for (curr = &gdbarch_data_registry.registrations;
1756 curr = &(*curr)->next);
1757 (*curr) = XMALLOC (struct gdbarch_data_registration);
1758 (*curr)->next = NULL;
1759 (*curr)->data = XMALLOC (struct gdbarch_data);
1760 (*curr)->data->index = gdbarch_data_registry.nr++;
1761 (*curr)->data->pre_init = pre_init;
1762 (*curr)->data->post_init = post_init;
1763 (*curr)->data->init_p = 1;
1764 return (*curr)->data;
1767 struct gdbarch_data *
1768 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1770 return gdbarch_data_register (pre_init, NULL);
1773 struct gdbarch_data *
1774 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1776 return gdbarch_data_register (NULL, post_init);
1779 /* Create/delete the gdbarch data vector. */
1782 alloc_gdbarch_data (struct gdbarch *gdbarch)
1784 gdb_assert (gdbarch->data == NULL);
1785 gdbarch->nr_data = gdbarch_data_registry.nr;
1786 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1789 /* Initialize the current value of the specified per-architecture
1793 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1794 struct gdbarch_data *data,
1797 gdb_assert (data->index < gdbarch->nr_data);
1798 gdb_assert (gdbarch->data[data->index] == NULL);
1799 gdb_assert (data->pre_init == NULL);
1800 gdbarch->data[data->index] = pointer;
1803 /* Return the current value of the specified per-architecture
1807 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1809 gdb_assert (data->index < gdbarch->nr_data);
1810 if (gdbarch->data[data->index] == NULL)
1812 /* The data-pointer isn't initialized, call init() to get a
1814 if (data->pre_init != NULL)
1815 /* Mid architecture creation: pass just the obstack, and not
1816 the entire architecture, as that way it isn't possible for
1817 pre-init code to refer to undefined architecture
1819 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1820 else if (gdbarch->initialized_p
1821 && data->post_init != NULL)
1822 /* Post architecture creation: pass the entire architecture
1823 (as all fields are valid), but be careful to also detect
1824 recursive references. */
1826 gdb_assert (data->init_p);
1828 gdbarch->data[data->index] = data->post_init (gdbarch);
1832 /* The architecture initialization hasn't completed - punt -
1833 hope that the caller knows what they are doing. Once
1834 deprecated_set_gdbarch_data has been initialized, this can be
1835 changed to an internal error. */
1837 gdb_assert (gdbarch->data[data->index] != NULL);
1839 return gdbarch->data[data->index];
1843 /* Keep a registry of the architectures known by GDB. */
1845 struct gdbarch_registration
1847 enum bfd_architecture bfd_architecture;
1848 gdbarch_init_ftype *init;
1849 gdbarch_dump_tdep_ftype *dump_tdep;
1850 struct gdbarch_list *arches;
1851 struct gdbarch_registration *next;
1854 static struct gdbarch_registration *gdbarch_registry = NULL;
1857 append_name (const char ***buf, int *nr, const char *name)
1859 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1865 gdbarch_printable_names (void)
1867 /* Accumulate a list of names based on the registed list of
1869 enum bfd_architecture a;
1871 const char **arches = NULL;
1872 struct gdbarch_registration *rego;
1873 for (rego = gdbarch_registry;
1877 const struct bfd_arch_info *ap;
1878 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1880 internal_error (__FILE__, __LINE__,
1881 _("gdbarch_architecture_names: multi-arch unknown"));
1884 append_name (&arches, &nr_arches, ap->printable_name);
1889 append_name (&arches, &nr_arches, NULL);
1895 gdbarch_register (enum bfd_architecture bfd_architecture,
1896 gdbarch_init_ftype *init,
1897 gdbarch_dump_tdep_ftype *dump_tdep)
1899 struct gdbarch_registration **curr;
1900 const struct bfd_arch_info *bfd_arch_info;
1901 /* Check that BFD recognizes this architecture */
1902 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1903 if (bfd_arch_info == NULL)
1905 internal_error (__FILE__, __LINE__,
1906 _("gdbarch: Attempt to register unknown architecture (%d)"),
1909 /* Check that we haven't seen this architecture before */
1910 for (curr = &gdbarch_registry;
1912 curr = &(*curr)->next)
1914 if (bfd_architecture == (*curr)->bfd_architecture)
1915 internal_error (__FILE__, __LINE__,
1916 _("gdbarch: Duplicate registraration of architecture (%s)"),
1917 bfd_arch_info->printable_name);
1921 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1922 bfd_arch_info->printable_name,
1923 host_address_to_string (init));
1925 (*curr) = XMALLOC (struct gdbarch_registration);
1926 (*curr)->bfd_architecture = bfd_architecture;
1927 (*curr)->init = init;
1928 (*curr)->dump_tdep = dump_tdep;
1929 (*curr)->arches = NULL;
1930 (*curr)->next = NULL;
1934 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1935 gdbarch_init_ftype *init)
1937 gdbarch_register (bfd_architecture, init, NULL);
1941 /* Look for an architecture using gdbarch_info. */
1943 struct gdbarch_list *
1944 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1945 const struct gdbarch_info *info)
1947 for (; arches != NULL; arches = arches->next)
1949 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1951 if (info->byte_order != arches->gdbarch->byte_order)
1953 if (info->osabi != arches->gdbarch->osabi)
1955 if (info->target_desc != arches->gdbarch->target_desc)
1963 /* Find an architecture that matches the specified INFO. Create a new
1964 architecture if needed. Return that new architecture. */
1967 gdbarch_find_by_info (struct gdbarch_info info)
1969 struct gdbarch *new_gdbarch;
1970 struct gdbarch_registration *rego;
1972 /* Fill in missing parts of the INFO struct using a number of
1973 sources: "set ..."; INFOabfd supplied; and the global
1975 gdbarch_info_fill (&info);
1977 /* Must have found some sort of architecture. */
1978 gdb_assert (info.bfd_arch_info != NULL);
1982 fprintf_unfiltered (gdb_stdlog,
1983 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
1984 (info.bfd_arch_info != NULL
1985 ? info.bfd_arch_info->printable_name
1987 fprintf_unfiltered (gdb_stdlog,
1988 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
1990 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1991 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1993 fprintf_unfiltered (gdb_stdlog,
1994 "gdbarch_find_by_info: info.osabi %d (%s)\n",
1995 info.osabi, gdbarch_osabi_name (info.osabi));
1996 fprintf_unfiltered (gdb_stdlog,
1997 "gdbarch_find_by_info: info.abfd %s\n",
1998 host_address_to_string (info.abfd));
1999 fprintf_unfiltered (gdb_stdlog,
2000 "gdbarch_find_by_info: info.tdep_info %s\n",
2001 host_address_to_string (info.tdep_info));
2004 /* Find the tdep code that knows about this architecture. */
2005 for (rego = gdbarch_registry;
2008 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2013 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2014 "No matching architecture\n");
2018 /* Ask the tdep code for an architecture that matches "info". */
2019 new_gdbarch = rego->init (info, rego->arches);
2021 /* Did the tdep code like it? No. Reject the change and revert to
2022 the old architecture. */
2023 if (new_gdbarch == NULL)
2026 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2027 "Target rejected architecture\n");
2031 /* Is this a pre-existing architecture (as determined by already
2032 being initialized)? Move it to the front of the architecture
2033 list (keeping the list sorted Most Recently Used). */
2034 if (new_gdbarch->initialized_p)
2036 struct gdbarch_list **list;
2037 struct gdbarch_list *this;
2039 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2040 "Previous architecture %s (%s) selected\n",
2041 host_address_to_string (new_gdbarch),
2042 new_gdbarch->bfd_arch_info->printable_name);
2043 /* Find the existing arch in the list. */
2044 for (list = ®o->arches;
2045 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2046 list = &(*list)->next);
2047 /* It had better be in the list of architectures. */
2048 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2051 (*list) = this->next;
2052 /* Insert THIS at the front. */
2053 this->next = rego->arches;
2054 rego->arches = this;
2059 /* It's a new architecture. */
2061 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2062 "New architecture %s (%s) selected\n",
2063 host_address_to_string (new_gdbarch),
2064 new_gdbarch->bfd_arch_info->printable_name);
2066 /* Insert the new architecture into the front of the architecture
2067 list (keep the list sorted Most Recently Used). */
2069 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2070 this->next = rego->arches;
2071 this->gdbarch = new_gdbarch;
2072 rego->arches = this;
2075 /* Check that the newly installed architecture is valid. Plug in
2076 any post init values. */
2077 new_gdbarch->dump_tdep = rego->dump_tdep;
2078 verify_gdbarch (new_gdbarch);
2079 new_gdbarch->initialized_p = 1;
2082 gdbarch_dump (new_gdbarch, gdb_stdlog);
2087 /* Make the specified architecture current. */
2090 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2092 gdb_assert (new_gdbarch != NULL);
2093 gdb_assert (new_gdbarch->initialized_p);
2094 target_gdbarch = new_gdbarch;
2095 observer_notify_architecture_changed (new_gdbarch);
2096 registers_changed ();
2099 extern void _initialize_gdbarch (void);
2102 _initialize_gdbarch (void)
2104 struct cmd_list_element *c;
2106 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2107 Set architecture debugging."), _("\\
2108 Show architecture debugging."), _("\\
2109 When non-zero, architecture debugging is enabled."),
2112 &setdebuglist, &showdebuglist);
2118 #../move-if-change new-gdbarch.c gdbarch.c
2119 compare_new gdbarch.c