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 "half", "float", "double", and
367 # "long double". These bit/format pairs should eventually be combined
368 # into 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:half_bit:::16:2*TARGET_CHAR_BIT::0
373 v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format)
374 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
375 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
376 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
377 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
378 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
379 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
381 # For most targets, a pointer on the target and its representation as an
382 # address in GDB have the same size and "look the same". For such a
383 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
384 # / addr_bit will be set from it.
386 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
387 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
390 # ptr_bit is the size of a pointer on the target
391 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
392 # addr_bit is the size of a target address as represented in gdb
393 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
395 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
396 v:int:char_signed:::1:-1:1
398 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
399 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
400 # Function for getting target's idea of a frame pointer. FIXME: GDB's
401 # whole scheme for dealing with "frames" and "frame pointers" needs a
403 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
405 M:void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
406 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
408 v:int:num_regs:::0:-1
409 # This macro gives the number of pseudo-registers that live in the
410 # register namespace but do not get fetched or stored on the target.
411 # These pseudo-registers may be aliases for other registers,
412 # combinations of other registers, or they may be computed by GDB.
413 v:int:num_pseudo_regs:::0:0::0
415 # GDB's standard (or well known) register numbers. These can map onto
416 # a real register or a pseudo (computed) register or not be defined at
418 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
419 v:int:sp_regnum:::-1:-1::0
420 v:int:pc_regnum:::-1:-1::0
421 v:int:ps_regnum:::-1:-1::0
422 v:int:fp0_regnum:::0:-1::0
423 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
424 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
425 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
426 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
427 # Convert from an sdb register number to an internal gdb register number.
428 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
429 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
430 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
431 m:const char *:register_name:int regnr:regnr::0
433 # Return the type of a register specified by the architecture. Only
434 # the register cache should call this function directly; others should
435 # use "register_type".
436 M:struct type *:register_type:int reg_nr:reg_nr
438 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
439 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
440 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
441 # deprecated_fp_regnum.
442 v:int:deprecated_fp_regnum:::-1:-1::0
444 # See gdbint.texinfo. See infcall.c.
445 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
446 v:int:call_dummy_location::::AT_ENTRY_POINT::0
447 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
449 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
450 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
451 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
452 # MAP a GDB RAW register number onto a simulator register number. See
453 # also include/...-sim.h.
454 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
455 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
456 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
457 # setjmp/longjmp support.
458 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
460 v:int:believe_pcc_promotion:::::::
462 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
463 f:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
464 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
465 # Construct a value representing the contents of register REGNUM in
466 # frame FRAME, interpreted as type TYPE. The routine needs to
467 # allocate and return a struct value with all value attributes
468 # (but not the value contents) filled in.
469 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
471 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
472 m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
473 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
475 # Return the return-value convention that will be used by FUNCTYPE
476 # to return a value of type VALTYPE. FUNCTYPE may be NULL in which
477 # case the return convention is computed based only on VALTYPE.
479 # If READBUF is not NULL, extract the return value and save it in this buffer.
481 # If WRITEBUF is not NULL, it contains a return value which will be
482 # stored into the appropriate register. This can be used when we want
483 # to force the value returned by a function (see the "return" command
485 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
487 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
488 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
489 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
490 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
491 # Return the adjusted address and kind to use for Z0/Z1 packets.
492 # KIND is usually the memory length of the breakpoint, but may have a
493 # different target-specific meaning.
494 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
495 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
496 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
497 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
498 v:CORE_ADDR:decr_pc_after_break:::0:::0
500 # A function can be addressed by either it's "pointer" (possibly a
501 # descriptor address) or "entry point" (first executable instruction).
502 # The method "convert_from_func_ptr_addr" converting the former to the
503 # latter. gdbarch_deprecated_function_start_offset is being used to implement
504 # a simplified subset of that functionality - the function's address
505 # corresponds to the "function pointer" and the function's start
506 # corresponds to the "function entry point" - and hence is redundant.
508 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
510 # Return the remote protocol register number associated with this
511 # register. Normally the identity mapping.
512 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
514 # Fetch the target specific address used to represent a load module.
515 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
517 v:CORE_ADDR:frame_args_skip:::0:::0
518 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
519 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
520 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
521 # frame-base. Enable frame-base before frame-unwind.
522 F:int:frame_num_args:struct frame_info *frame:frame
524 M:CORE_ADDR:frame_align:CORE_ADDR address:address
525 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
526 v:int:frame_red_zone_size
528 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
529 # On some machines there are bits in addresses which are not really
530 # part of the address, but are used by the kernel, the hardware, etc.
531 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
532 # we get a "real" address such as one would find in a symbol table.
533 # This is used only for addresses of instructions, and even then I'm
534 # not sure it's used in all contexts. It exists to deal with there
535 # being a few stray bits in the PC which would mislead us, not as some
536 # sort of generic thing to handle alignment or segmentation (it's
537 # possible it should be in TARGET_READ_PC instead).
538 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
539 # It is not at all clear why gdbarch_smash_text_address is not folded into
540 # gdbarch_addr_bits_remove.
541 m:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
543 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
544 # indicates if the target needs software single step. An ISA method to
547 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
548 # breakpoints using the breakpoint system instead of blatting memory directly
551 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
552 # target can single step. If not, then implement single step using breakpoints.
554 # A return value of 1 means that the software_single_step breakpoints
555 # were inserted; 0 means they were not.
556 F:int:software_single_step:struct frame_info *frame:frame
558 # Return non-zero if the processor is executing a delay slot and a
559 # further single-step is needed before the instruction finishes.
560 M:int:single_step_through_delay:struct frame_info *frame:frame
561 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
562 # disassembler. Perhaps objdump can handle it?
563 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
564 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
567 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
568 # evaluates non-zero, this is the address where the debugger will place
569 # a step-resume breakpoint to get us past the dynamic linker.
570 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
571 # Some systems also have trampoline code for returning from shared libs.
572 m:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
574 # A target might have problems with watchpoints as soon as the stack
575 # frame of the current function has been destroyed. This mostly happens
576 # as the first action in a funtion's epilogue. in_function_epilogue_p()
577 # is defined to return a non-zero value if either the given addr is one
578 # instruction after the stack destroying instruction up to the trailing
579 # return instruction or if we can figure out that the stack frame has
580 # already been invalidated regardless of the value of addr. Targets
581 # which don't suffer from that problem could just let this functionality
583 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
584 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
585 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
586 v:int:cannot_step_breakpoint:::0:0::0
587 v:int:have_nonsteppable_watchpoint:::0:0::0
588 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
589 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
590 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
591 # Is a register in a group
592 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
593 # Fetch the pointer to the ith function argument.
594 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
596 # Return the appropriate register set for a core file section with
597 # name SECT_NAME and size SECT_SIZE.
598 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
600 # When creating core dumps, some systems encode the PID in addition
601 # to the LWP id in core file register section names. In those cases, the
602 # "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID]. This setting
603 # is set to true for such architectures; false if "XXX" represents an LWP
604 # or thread id with no special encoding.
605 v:int:core_reg_section_encodes_pid:::0:0::0
607 # Supported register notes in a core file.
608 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
610 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
611 # core file into buffer READBUF with length LEN.
612 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
614 # How the core_stratum layer converts a PTID from a core file to a
616 M:char *:core_pid_to_str:ptid_t ptid:ptid
618 # BFD target to use when generating a core file.
619 V:const char *:gcore_bfd_target:::0:0:::gdbarch->gcore_bfd_target
621 # If the elements of C++ vtables are in-place function descriptors rather
622 # than normal function pointers (which may point to code or a descriptor),
624 v:int:vtable_function_descriptors:::0:0::0
626 # Set if the least significant bit of the delta is used instead of the least
627 # significant bit of the pfn for pointers to virtual member functions.
628 v:int:vbit_in_delta:::0:0::0
630 # Advance PC to next instruction in order to skip a permanent breakpoint.
631 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
633 # The maximum length of an instruction on this architecture.
634 V:ULONGEST:max_insn_length:::0:0
636 # Copy the instruction at FROM to TO, and make any adjustments
637 # necessary to single-step it at that address.
639 # REGS holds the state the thread's registers will have before
640 # executing the copied instruction; the PC in REGS will refer to FROM,
641 # not the copy at TO. The caller should update it to point at TO later.
643 # Return a pointer to data of the architecture's choice to be passed
644 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
645 # the instruction's effects have been completely simulated, with the
646 # resulting state written back to REGS.
648 # For a general explanation of displaced stepping and how GDB uses it,
649 # see the comments in infrun.c.
651 # The TO area is only guaranteed to have space for
652 # gdbarch_max_insn_length (arch) bytes, so this function must not
653 # write more bytes than that to that area.
655 # If you do not provide this function, GDB assumes that the
656 # architecture does not support displaced stepping.
658 # If your architecture doesn't need to adjust instructions before
659 # single-stepping them, consider using simple_displaced_step_copy_insn
661 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
663 # Return true if GDB should use hardware single-stepping to execute
664 # the displaced instruction identified by CLOSURE. If false,
665 # GDB will simply restart execution at the displaced instruction
666 # location, and it is up to the target to ensure GDB will receive
667 # control again (e.g. by placing a software breakpoint instruction
668 # into the displaced instruction buffer).
670 # The default implementation returns false on all targets that
671 # provide a gdbarch_software_single_step routine, and true otherwise.
672 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
674 # Fix up the state resulting from successfully single-stepping a
675 # displaced instruction, to give the result we would have gotten from
676 # stepping the instruction in its original location.
678 # REGS is the register state resulting from single-stepping the
679 # displaced instruction.
681 # CLOSURE is the result from the matching call to
682 # gdbarch_displaced_step_copy_insn.
684 # If you provide gdbarch_displaced_step_copy_insn.but not this
685 # function, then GDB assumes that no fixup is needed after
686 # single-stepping the instruction.
688 # For a general explanation of displaced stepping and how GDB uses it,
689 # see the comments in infrun.c.
690 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
692 # Free a closure returned by gdbarch_displaced_step_copy_insn.
694 # If you provide gdbarch_displaced_step_copy_insn, you must provide
695 # this function as well.
697 # If your architecture uses closures that don't need to be freed, then
698 # you can use simple_displaced_step_free_closure here.
700 # For a general explanation of displaced stepping and how GDB uses it,
701 # see the comments in infrun.c.
702 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
704 # Return the address of an appropriate place to put displaced
705 # instructions while we step over them. There need only be one such
706 # place, since we're only stepping one thread over a breakpoint at a
709 # For a general explanation of displaced stepping and how GDB uses it,
710 # see the comments in infrun.c.
711 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
713 # Relocate an instruction to execute at a different address. OLDLOC
714 # is the address in the inferior memory where the instruction to
715 # relocate is currently at. On input, TO points to the destination
716 # where we want the instruction to be copied (and possibly adjusted)
717 # to. On output, it points to one past the end of the resulting
718 # instruction(s). The effect of executing the instruction at TO shall
719 # be the same as if executing it at FROM. For example, call
720 # instructions that implicitly push the return address on the stack
721 # should be adjusted to return to the instruction after OLDLOC;
722 # relative branches, and other PC-relative instructions need the
723 # offset adjusted; etc.
724 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
726 # Refresh overlay mapped state for section OSECT.
727 F:void:overlay_update:struct obj_section *osect:osect
729 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
731 # Handle special encoding of static variables in stabs debug info.
732 F:char *:static_transform_name:char *name:name
733 # Set if the address in N_SO or N_FUN stabs may be zero.
734 v:int:sofun_address_maybe_missing:::0:0::0
736 # Parse the instruction at ADDR storing in the record execution log
737 # the registers REGCACHE and memory ranges that will be affected when
738 # the instruction executes, along with their current values.
739 # Return -1 if something goes wrong, 0 otherwise.
740 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
742 # Save process state after a signal.
743 # Return -1 if something goes wrong, 0 otherwise.
744 M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
746 # Signal translation: translate inferior's signal (host's) number into
747 # GDB's representation.
748 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
749 # Signal translation: translate GDB's signal number into inferior's host
751 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
753 # Extra signal info inspection.
755 # Return a type suitable to inspect extra signal information.
756 M:struct type *:get_siginfo_type:void:
758 # Record architecture-specific information from the symbol table.
759 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
761 # Function for the 'catch syscall' feature.
763 # Get architecture-specific system calls information from registers.
764 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
766 # True if the list of shared libraries is one and only for all
767 # processes, as opposed to a list of shared libraries per inferior.
768 # This usually means that all processes, although may or may not share
769 # an address space, will see the same set of symbols at the same
771 v:int:has_global_solist:::0:0::0
773 # On some targets, even though each inferior has its own private
774 # address space, the debug interface takes care of making breakpoints
775 # visible to all address spaces automatically. For such cases,
776 # this property should be set to true.
777 v:int:has_global_breakpoints:::0:0::0
779 # True if inferiors share an address space (e.g., uClinux).
780 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
782 # True if a fast tracepoint can be set at an address.
783 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
785 # Return the "auto" target charset.
786 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
787 # Return the "auto" target wide charset.
788 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
790 # If non-empty, this is a file extension that will be opened in place
791 # of the file extension reported by the shared library list.
793 # This is most useful for toolchains that use a post-linker tool,
794 # where the names of the files run on the target differ in extension
795 # compared to the names of the files GDB should load for debug info.
796 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
798 # If true, the target OS has DOS-based file system semantics. That
799 # is, absolute paths include a drive name, and the backslash is
800 # considered a directory separator.
801 v:int:has_dos_based_file_system:::0:0::0
808 exec > new-gdbarch.log
809 function_list |
while do_read
812 ${class} ${returntype} ${function} ($formal)
816 eval echo \"\ \ \ \
${r}=\
${${r}}\"
818 if class_is_predicate_p
&& fallback_default_p
820 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
824 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
826 echo "Error: postdefault is useless when invalid_p=0" 1>&2
830 if class_is_multiarch_p
832 if class_is_predicate_p
; then :
833 elif test "x${predefault}" = "x"
835 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
844 compare_new gdbarch.log
850 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
852 /* Dynamic architecture support for GDB, the GNU debugger.
854 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
855 2007, 2008, 2009 Free Software Foundation, Inc.
857 This file is part of GDB.
859 This program is free software; you can redistribute it and/or modify
860 it under the terms of the GNU General Public License as published by
861 the Free Software Foundation; either version 3 of the License, or
862 (at your option) any later version.
864 This program is distributed in the hope that it will be useful,
865 but WITHOUT ANY WARRANTY; without even the implied warranty of
866 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
867 GNU General Public License for more details.
869 You should have received a copy of the GNU General Public License
870 along with this program. If not, see <http://www.gnu.org/licenses/>. */
872 /* This file was created with the aid of \`\`gdbarch.sh''.
874 The Bourne shell script \`\`gdbarch.sh'' creates the files
875 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
876 against the existing \`\`gdbarch.[hc]''. Any differences found
879 If editing this file, please also run gdbarch.sh and merge any
880 changes into that script. Conversely, when making sweeping changes
881 to this file, modifying gdbarch.sh and using its output may prove
903 struct minimal_symbol;
907 struct disassemble_info;
910 struct bp_target_info;
912 struct displaced_step_closure;
913 struct core_regset_section;
916 /* The architecture associated with the connection to the target.
918 The architecture vector provides some information that is really
919 a property of the target: The layout of certain packets, for instance;
920 or the solib_ops vector. Etc. To differentiate architecture accesses
921 to per-target properties from per-thread/per-frame/per-objfile properties,
922 accesses to per-target properties should be made through target_gdbarch.
924 Eventually, when support for multiple targets is implemented in
925 GDB, this global should be made target-specific. */
926 extern struct gdbarch *target_gdbarch;
932 printf "/* The following are pre-initialized by GDBARCH. */\n"
933 function_list |
while do_read
938 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
939 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
946 printf "/* The following are initialized by the target dependent code. */\n"
947 function_list |
while do_read
949 if [ -n "${comment}" ]
951 echo "${comment}" |
sed \
957 if class_is_predicate_p
960 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
962 if class_is_variable_p
965 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
966 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
968 if class_is_function_p
971 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
973 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
974 elif class_is_multiarch_p
976 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
978 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
980 if [ "x${formal}" = "xvoid" ]
982 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
984 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
986 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
993 /* Definition for an unknown syscall, used basically in error-cases. */
994 #define UNKNOWN_SYSCALL (-1)
996 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
999 /* Mechanism for co-ordinating the selection of a specific
1002 GDB targets (*-tdep.c) can register an interest in a specific
1003 architecture. Other GDB components can register a need to maintain
1004 per-architecture data.
1006 The mechanisms below ensures that there is only a loose connection
1007 between the set-architecture command and the various GDB
1008 components. Each component can independently register their need
1009 to maintain architecture specific data with gdbarch.
1013 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1016 The more traditional mega-struct containing architecture specific
1017 data for all the various GDB components was also considered. Since
1018 GDB is built from a variable number of (fairly independent)
1019 components it was determined that the global aproach was not
1023 /* Register a new architectural family with GDB.
1025 Register support for the specified ARCHITECTURE with GDB. When
1026 gdbarch determines that the specified architecture has been
1027 selected, the corresponding INIT function is called.
1031 The INIT function takes two parameters: INFO which contains the
1032 information available to gdbarch about the (possibly new)
1033 architecture; ARCHES which is a list of the previously created
1034 \`\`struct gdbarch'' for this architecture.
1036 The INFO parameter is, as far as possible, be pre-initialized with
1037 information obtained from INFO.ABFD or the global defaults.
1039 The ARCHES parameter is a linked list (sorted most recently used)
1040 of all the previously created architures for this architecture
1041 family. The (possibly NULL) ARCHES->gdbarch can used to access
1042 values from the previously selected architecture for this
1043 architecture family.
1045 The INIT function shall return any of: NULL - indicating that it
1046 doesn't recognize the selected architecture; an existing \`\`struct
1047 gdbarch'' from the ARCHES list - indicating that the new
1048 architecture is just a synonym for an earlier architecture (see
1049 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1050 - that describes the selected architecture (see gdbarch_alloc()).
1052 The DUMP_TDEP function shall print out all target specific values.
1053 Care should be taken to ensure that the function works in both the
1054 multi-arch and non- multi-arch cases. */
1058 struct gdbarch *gdbarch;
1059 struct gdbarch_list *next;
1064 /* Use default: NULL (ZERO). */
1065 const struct bfd_arch_info *bfd_arch_info;
1067 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1070 int byte_order_for_code;
1072 /* Use default: NULL (ZERO). */
1075 /* Use default: NULL (ZERO). */
1076 struct gdbarch_tdep_info *tdep_info;
1078 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1079 enum gdb_osabi osabi;
1081 /* Use default: NULL (ZERO). */
1082 const struct target_desc *target_desc;
1085 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1086 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1088 /* DEPRECATED - use gdbarch_register() */
1089 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1091 extern void gdbarch_register (enum bfd_architecture architecture,
1092 gdbarch_init_ftype *,
1093 gdbarch_dump_tdep_ftype *);
1096 /* Return a freshly allocated, NULL terminated, array of the valid
1097 architecture names. Since architectures are registered during the
1098 _initialize phase this function only returns useful information
1099 once initialization has been completed. */
1101 extern const char **gdbarch_printable_names (void);
1104 /* Helper function. Search the list of ARCHES for a GDBARCH that
1105 matches the information provided by INFO. */
1107 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1110 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1111 basic initialization using values obtained from the INFO and TDEP
1112 parameters. set_gdbarch_*() functions are called to complete the
1113 initialization of the object. */
1115 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1118 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1119 It is assumed that the caller freeds the \`\`struct
1122 extern void gdbarch_free (struct gdbarch *);
1125 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1126 obstack. The memory is freed when the corresponding architecture
1129 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1130 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1131 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1134 /* Helper function. Force an update of the current architecture.
1136 The actual architecture selected is determined by INFO, \`\`(gdb) set
1137 architecture'' et.al., the existing architecture and BFD's default
1138 architecture. INFO should be initialized to zero and then selected
1139 fields should be updated.
1141 Returns non-zero if the update succeeds */
1143 extern int gdbarch_update_p (struct gdbarch_info info);
1146 /* Helper function. Find an architecture matching info.
1148 INFO should be initialized using gdbarch_info_init, relevant fields
1149 set, and then finished using gdbarch_info_fill.
1151 Returns the corresponding architecture, or NULL if no matching
1152 architecture was found. */
1154 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1157 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1159 FIXME: kettenis/20031124: Of the functions that follow, only
1160 gdbarch_from_bfd is supposed to survive. The others will
1161 dissappear since in the future GDB will (hopefully) be truly
1162 multi-arch. However, for now we're still stuck with the concept of
1163 a single active architecture. */
1165 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1168 /* Register per-architecture data-pointer.
1170 Reserve space for a per-architecture data-pointer. An identifier
1171 for the reserved data-pointer is returned. That identifer should
1172 be saved in a local static variable.
1174 Memory for the per-architecture data shall be allocated using
1175 gdbarch_obstack_zalloc. That memory will be deleted when the
1176 corresponding architecture object is deleted.
1178 When a previously created architecture is re-selected, the
1179 per-architecture data-pointer for that previous architecture is
1180 restored. INIT() is not re-called.
1182 Multiple registrarants for any architecture are allowed (and
1183 strongly encouraged). */
1185 struct gdbarch_data;
1187 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1188 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1189 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1190 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1191 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1192 struct gdbarch_data *data,
1195 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1198 /* Set the dynamic target-system-dependent parameters (architecture,
1199 byte-order, ...) using information found in the BFD */
1201 extern void set_gdbarch_from_file (bfd *);
1204 /* Initialize the current architecture to the "first" one we find on
1207 extern void initialize_current_architecture (void);
1209 /* gdbarch trace variable */
1210 extern int gdbarch_debug;
1212 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1217 #../move-if-change new-gdbarch.h gdbarch.h
1218 compare_new gdbarch.h
1225 exec > new-gdbarch.c
1230 #include "arch-utils.h"
1233 #include "inferior.h"
1236 #include "floatformat.h"
1238 #include "gdb_assert.h"
1239 #include "gdb_string.h"
1240 #include "reggroups.h"
1242 #include "gdb_obstack.h"
1243 #include "observer.h"
1244 #include "regcache.h"
1246 /* Static function declarations */
1248 static void alloc_gdbarch_data (struct gdbarch *);
1250 /* Non-zero if we want to trace architecture code. */
1252 #ifndef GDBARCH_DEBUG
1253 #define GDBARCH_DEBUG 0
1255 int gdbarch_debug = GDBARCH_DEBUG;
1257 show_gdbarch_debug (struct ui_file *file, int from_tty,
1258 struct cmd_list_element *c, const char *value)
1260 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1264 pformat (const struct floatformat **format)
1269 /* Just print out one of them - this is only for diagnostics. */
1270 return format[0]->name;
1274 pstring (const char *string)
1283 # gdbarch open the gdbarch object
1285 printf "/* Maintain the struct gdbarch object */\n"
1287 printf "struct gdbarch\n"
1289 printf " /* Has this architecture been fully initialized? */\n"
1290 printf " int initialized_p;\n"
1292 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1293 printf " struct obstack *obstack;\n"
1295 printf " /* basic architectural information */\n"
1296 function_list |
while do_read
1300 printf " ${returntype} ${function};\n"
1304 printf " /* target specific vector. */\n"
1305 printf " struct gdbarch_tdep *tdep;\n"
1306 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1308 printf " /* per-architecture data-pointers */\n"
1309 printf " unsigned nr_data;\n"
1310 printf " void **data;\n"
1312 printf " /* per-architecture swap-regions */\n"
1313 printf " struct gdbarch_swap *swap;\n"
1316 /* Multi-arch values.
1318 When extending this structure you must:
1320 Add the field below.
1322 Declare set/get functions and define the corresponding
1325 gdbarch_alloc(): If zero/NULL is not a suitable default,
1326 initialize the new field.
1328 verify_gdbarch(): Confirm that the target updated the field
1331 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1334 \`\`startup_gdbarch()'': Append an initial value to the static
1335 variable (base values on the host's c-type system).
1337 get_gdbarch(): Implement the set/get functions (probably using
1338 the macro's as shortcuts).
1343 function_list |
while do_read
1345 if class_is_variable_p
1347 printf " ${returntype} ${function};\n"
1348 elif class_is_function_p
1350 printf " gdbarch_${function}_ftype *${function};\n"
1355 # A pre-initialized vector
1359 /* The default architecture uses host values (for want of a better
1363 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1365 printf "struct gdbarch startup_gdbarch =\n"
1367 printf " 1, /* Always initialized. */\n"
1368 printf " NULL, /* The obstack. */\n"
1369 printf " /* basic architecture information */\n"
1370 function_list |
while do_read
1374 printf " ${staticdefault}, /* ${function} */\n"
1378 /* target specific vector and its dump routine */
1380 /*per-architecture data-pointers and swap regions */
1382 /* Multi-arch values */
1384 function_list |
while do_read
1386 if class_is_function_p || class_is_variable_p
1388 printf " ${staticdefault}, /* ${function} */\n"
1392 /* startup_gdbarch() */
1395 struct gdbarch *target_gdbarch = &startup_gdbarch;
1398 # Create a new gdbarch struct
1401 /* Create a new \`\`struct gdbarch'' based on information provided by
1402 \`\`struct gdbarch_info''. */
1407 gdbarch_alloc (const struct gdbarch_info *info,
1408 struct gdbarch_tdep *tdep)
1410 struct gdbarch *gdbarch;
1412 /* Create an obstack for allocating all the per-architecture memory,
1413 then use that to allocate the architecture vector. */
1414 struct obstack *obstack = XMALLOC (struct obstack);
1415 obstack_init (obstack);
1416 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1417 memset (gdbarch, 0, sizeof (*gdbarch));
1418 gdbarch->obstack = obstack;
1420 alloc_gdbarch_data (gdbarch);
1422 gdbarch->tdep = tdep;
1425 function_list |
while do_read
1429 printf " gdbarch->${function} = info->${function};\n"
1433 printf " /* Force the explicit initialization of these. */\n"
1434 function_list |
while do_read
1436 if class_is_function_p || class_is_variable_p
1438 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1440 printf " gdbarch->${function} = ${predefault};\n"
1445 /* gdbarch_alloc() */
1451 # Free a gdbarch struct.
1455 /* Allocate extra space using the per-architecture obstack. */
1458 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1460 void *data = obstack_alloc (arch->obstack, size);
1462 memset (data, 0, size);
1467 /* Free a gdbarch struct. This should never happen in normal
1468 operation --- once you've created a gdbarch, you keep it around.
1469 However, if an architecture's init function encounters an error
1470 building the structure, it may need to clean up a partially
1471 constructed gdbarch. */
1474 gdbarch_free (struct gdbarch *arch)
1476 struct obstack *obstack;
1478 gdb_assert (arch != NULL);
1479 gdb_assert (!arch->initialized_p);
1480 obstack = arch->obstack;
1481 obstack_free (obstack, 0); /* Includes the ARCH. */
1486 # verify a new architecture
1490 /* Ensure that all values in a GDBARCH are reasonable. */
1493 verify_gdbarch (struct gdbarch *gdbarch)
1495 struct ui_file *log;
1496 struct cleanup *cleanups;
1500 log = mem_fileopen ();
1501 cleanups = make_cleanup_ui_file_delete (log);
1503 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1504 fprintf_unfiltered (log, "\n\tbyte-order");
1505 if (gdbarch->bfd_arch_info == NULL)
1506 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1507 /* Check those that need to be defined for the given multi-arch level. */
1509 function_list |
while do_read
1511 if class_is_function_p || class_is_variable_p
1513 if [ "x${invalid_p}" = "x0" ]
1515 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1516 elif class_is_predicate_p
1518 printf " /* Skip verify of ${function}, has predicate */\n"
1519 # FIXME: See do_read for potential simplification
1520 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1522 printf " if (${invalid_p})\n"
1523 printf " gdbarch->${function} = ${postdefault};\n"
1524 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1526 printf " if (gdbarch->${function} == ${predefault})\n"
1527 printf " gdbarch->${function} = ${postdefault};\n"
1528 elif [ -n "${postdefault}" ]
1530 printf " if (gdbarch->${function} == 0)\n"
1531 printf " gdbarch->${function} = ${postdefault};\n"
1532 elif [ -n "${invalid_p}" ]
1534 printf " if (${invalid_p})\n"
1535 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1536 elif [ -n "${predefault}" ]
1538 printf " if (gdbarch->${function} == ${predefault})\n"
1539 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1544 buf = ui_file_xstrdup (log, &length);
1545 make_cleanup (xfree, buf);
1547 internal_error (__FILE__, __LINE__,
1548 _("verify_gdbarch: the following are invalid ...%s"),
1550 do_cleanups (cleanups);
1554 # dump the structure
1558 /* Print out the details of the current architecture. */
1561 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1563 const char *gdb_nm_file = "<not-defined>";
1565 #if defined (GDB_NM_FILE)
1566 gdb_nm_file = GDB_NM_FILE;
1568 fprintf_unfiltered (file,
1569 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1572 function_list |
sort -t: -k 3 |
while do_read
1574 # First the predicate
1575 if class_is_predicate_p
1577 printf " fprintf_unfiltered (file,\n"
1578 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1579 printf " gdbarch_${function}_p (gdbarch));\n"
1581 # Print the corresponding value.
1582 if class_is_function_p
1584 printf " fprintf_unfiltered (file,\n"
1585 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1586 printf " host_address_to_string (gdbarch->${function}));\n"
1589 case "${print}:${returntype}" in
1592 print
="core_addr_to_string_nz (gdbarch->${function})"
1596 print
="plongest (gdbarch->${function})"
1602 printf " fprintf_unfiltered (file,\n"
1603 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1604 printf " ${print});\n"
1608 if (gdbarch->dump_tdep != NULL)
1609 gdbarch->dump_tdep (gdbarch, file);
1617 struct gdbarch_tdep *
1618 gdbarch_tdep (struct gdbarch *gdbarch)
1620 if (gdbarch_debug >= 2)
1621 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1622 return gdbarch->tdep;
1626 function_list |
while do_read
1628 if class_is_predicate_p
1632 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1634 printf " gdb_assert (gdbarch != NULL);\n"
1635 printf " return ${predicate};\n"
1638 if class_is_function_p
1641 printf "${returntype}\n"
1642 if [ "x${formal}" = "xvoid" ]
1644 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1646 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1649 printf " gdb_assert (gdbarch != NULL);\n"
1650 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1651 if class_is_predicate_p
&& test -n "${predefault}"
1653 # Allow a call to a function with a predicate.
1654 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1656 printf " if (gdbarch_debug >= 2)\n"
1657 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1658 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1660 if class_is_multiarch_p
1667 if class_is_multiarch_p
1669 params
="gdbarch, ${actual}"
1674 if [ "x${returntype}" = "xvoid" ]
1676 printf " gdbarch->${function} (${params});\n"
1678 printf " return gdbarch->${function} (${params});\n"
1683 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1684 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1686 printf " gdbarch->${function} = ${function};\n"
1688 elif class_is_variable_p
1691 printf "${returntype}\n"
1692 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1694 printf " gdb_assert (gdbarch != NULL);\n"
1695 if [ "x${invalid_p}" = "x0" ]
1697 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1698 elif [ -n "${invalid_p}" ]
1700 printf " /* Check variable is valid. */\n"
1701 printf " gdb_assert (!(${invalid_p}));\n"
1702 elif [ -n "${predefault}" ]
1704 printf " /* Check variable changed from pre-default. */\n"
1705 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1707 printf " if (gdbarch_debug >= 2)\n"
1708 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1709 printf " return gdbarch->${function};\n"
1713 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1714 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1716 printf " gdbarch->${function} = ${function};\n"
1718 elif class_is_info_p
1721 printf "${returntype}\n"
1722 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1724 printf " gdb_assert (gdbarch != NULL);\n"
1725 printf " if (gdbarch_debug >= 2)\n"
1726 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1727 printf " return gdbarch->${function};\n"
1732 # All the trailing guff
1736 /* Keep a registry of per-architecture data-pointers required by GDB
1743 gdbarch_data_pre_init_ftype *pre_init;
1744 gdbarch_data_post_init_ftype *post_init;
1747 struct gdbarch_data_registration
1749 struct gdbarch_data *data;
1750 struct gdbarch_data_registration *next;
1753 struct gdbarch_data_registry
1756 struct gdbarch_data_registration *registrations;
1759 struct gdbarch_data_registry gdbarch_data_registry =
1764 static struct gdbarch_data *
1765 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1766 gdbarch_data_post_init_ftype *post_init)
1768 struct gdbarch_data_registration **curr;
1770 /* Append the new registration. */
1771 for (curr = &gdbarch_data_registry.registrations;
1773 curr = &(*curr)->next);
1774 (*curr) = XMALLOC (struct gdbarch_data_registration);
1775 (*curr)->next = NULL;
1776 (*curr)->data = XMALLOC (struct gdbarch_data);
1777 (*curr)->data->index = gdbarch_data_registry.nr++;
1778 (*curr)->data->pre_init = pre_init;
1779 (*curr)->data->post_init = post_init;
1780 (*curr)->data->init_p = 1;
1781 return (*curr)->data;
1784 struct gdbarch_data *
1785 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1787 return gdbarch_data_register (pre_init, NULL);
1790 struct gdbarch_data *
1791 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1793 return gdbarch_data_register (NULL, post_init);
1796 /* Create/delete the gdbarch data vector. */
1799 alloc_gdbarch_data (struct gdbarch *gdbarch)
1801 gdb_assert (gdbarch->data == NULL);
1802 gdbarch->nr_data = gdbarch_data_registry.nr;
1803 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1806 /* Initialize the current value of the specified per-architecture
1810 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1811 struct gdbarch_data *data,
1814 gdb_assert (data->index < gdbarch->nr_data);
1815 gdb_assert (gdbarch->data[data->index] == NULL);
1816 gdb_assert (data->pre_init == NULL);
1817 gdbarch->data[data->index] = pointer;
1820 /* Return the current value of the specified per-architecture
1824 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1826 gdb_assert (data->index < gdbarch->nr_data);
1827 if (gdbarch->data[data->index] == NULL)
1829 /* The data-pointer isn't initialized, call init() to get a
1831 if (data->pre_init != NULL)
1832 /* Mid architecture creation: pass just the obstack, and not
1833 the entire architecture, as that way it isn't possible for
1834 pre-init code to refer to undefined architecture
1836 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1837 else if (gdbarch->initialized_p
1838 && data->post_init != NULL)
1839 /* Post architecture creation: pass the entire architecture
1840 (as all fields are valid), but be careful to also detect
1841 recursive references. */
1843 gdb_assert (data->init_p);
1845 gdbarch->data[data->index] = data->post_init (gdbarch);
1849 /* The architecture initialization hasn't completed - punt -
1850 hope that the caller knows what they are doing. Once
1851 deprecated_set_gdbarch_data has been initialized, this can be
1852 changed to an internal error. */
1854 gdb_assert (gdbarch->data[data->index] != NULL);
1856 return gdbarch->data[data->index];
1860 /* Keep a registry of the architectures known by GDB. */
1862 struct gdbarch_registration
1864 enum bfd_architecture bfd_architecture;
1865 gdbarch_init_ftype *init;
1866 gdbarch_dump_tdep_ftype *dump_tdep;
1867 struct gdbarch_list *arches;
1868 struct gdbarch_registration *next;
1871 static struct gdbarch_registration *gdbarch_registry = NULL;
1874 append_name (const char ***buf, int *nr, const char *name)
1876 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1882 gdbarch_printable_names (void)
1884 /* Accumulate a list of names based on the registed list of
1887 const char **arches = NULL;
1888 struct gdbarch_registration *rego;
1890 for (rego = gdbarch_registry;
1894 const struct bfd_arch_info *ap;
1895 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1897 internal_error (__FILE__, __LINE__,
1898 _("gdbarch_architecture_names: multi-arch unknown"));
1901 append_name (&arches, &nr_arches, ap->printable_name);
1906 append_name (&arches, &nr_arches, NULL);
1912 gdbarch_register (enum bfd_architecture bfd_architecture,
1913 gdbarch_init_ftype *init,
1914 gdbarch_dump_tdep_ftype *dump_tdep)
1916 struct gdbarch_registration **curr;
1917 const struct bfd_arch_info *bfd_arch_info;
1919 /* Check that BFD recognizes this architecture */
1920 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1921 if (bfd_arch_info == NULL)
1923 internal_error (__FILE__, __LINE__,
1924 _("gdbarch: Attempt to register unknown architecture (%d)"),
1927 /* Check that we haven't seen this architecture before */
1928 for (curr = &gdbarch_registry;
1930 curr = &(*curr)->next)
1932 if (bfd_architecture == (*curr)->bfd_architecture)
1933 internal_error (__FILE__, __LINE__,
1934 _("gdbarch: Duplicate registraration of architecture (%s)"),
1935 bfd_arch_info->printable_name);
1939 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1940 bfd_arch_info->printable_name,
1941 host_address_to_string (init));
1943 (*curr) = XMALLOC (struct gdbarch_registration);
1944 (*curr)->bfd_architecture = bfd_architecture;
1945 (*curr)->init = init;
1946 (*curr)->dump_tdep = dump_tdep;
1947 (*curr)->arches = NULL;
1948 (*curr)->next = NULL;
1952 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1953 gdbarch_init_ftype *init)
1955 gdbarch_register (bfd_architecture, init, NULL);
1959 /* Look for an architecture using gdbarch_info. */
1961 struct gdbarch_list *
1962 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1963 const struct gdbarch_info *info)
1965 for (; arches != NULL; arches = arches->next)
1967 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1969 if (info->byte_order != arches->gdbarch->byte_order)
1971 if (info->osabi != arches->gdbarch->osabi)
1973 if (info->target_desc != arches->gdbarch->target_desc)
1981 /* Find an architecture that matches the specified INFO. Create a new
1982 architecture if needed. Return that new architecture. */
1985 gdbarch_find_by_info (struct gdbarch_info info)
1987 struct gdbarch *new_gdbarch;
1988 struct gdbarch_registration *rego;
1990 /* Fill in missing parts of the INFO struct using a number of
1991 sources: "set ..."; INFOabfd supplied; and the global
1993 gdbarch_info_fill (&info);
1995 /* Must have found some sort of architecture. */
1996 gdb_assert (info.bfd_arch_info != NULL);
2000 fprintf_unfiltered (gdb_stdlog,
2001 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2002 (info.bfd_arch_info != NULL
2003 ? info.bfd_arch_info->printable_name
2005 fprintf_unfiltered (gdb_stdlog,
2006 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2008 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2009 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2011 fprintf_unfiltered (gdb_stdlog,
2012 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2013 info.osabi, gdbarch_osabi_name (info.osabi));
2014 fprintf_unfiltered (gdb_stdlog,
2015 "gdbarch_find_by_info: info.abfd %s\n",
2016 host_address_to_string (info.abfd));
2017 fprintf_unfiltered (gdb_stdlog,
2018 "gdbarch_find_by_info: info.tdep_info %s\n",
2019 host_address_to_string (info.tdep_info));
2022 /* Find the tdep code that knows about this architecture. */
2023 for (rego = gdbarch_registry;
2026 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2031 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2032 "No matching architecture\n");
2036 /* Ask the tdep code for an architecture that matches "info". */
2037 new_gdbarch = rego->init (info, rego->arches);
2039 /* Did the tdep code like it? No. Reject the change and revert to
2040 the old architecture. */
2041 if (new_gdbarch == NULL)
2044 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2045 "Target rejected architecture\n");
2049 /* Is this a pre-existing architecture (as determined by already
2050 being initialized)? Move it to the front of the architecture
2051 list (keeping the list sorted Most Recently Used). */
2052 if (new_gdbarch->initialized_p)
2054 struct gdbarch_list **list;
2055 struct gdbarch_list *this;
2057 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2058 "Previous architecture %s (%s) selected\n",
2059 host_address_to_string (new_gdbarch),
2060 new_gdbarch->bfd_arch_info->printable_name);
2061 /* Find the existing arch in the list. */
2062 for (list = ®o->arches;
2063 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2064 list = &(*list)->next);
2065 /* It had better be in the list of architectures. */
2066 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2069 (*list) = this->next;
2070 /* Insert THIS at the front. */
2071 this->next = rego->arches;
2072 rego->arches = this;
2077 /* It's a new architecture. */
2079 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2080 "New architecture %s (%s) selected\n",
2081 host_address_to_string (new_gdbarch),
2082 new_gdbarch->bfd_arch_info->printable_name);
2084 /* Insert the new architecture into the front of the architecture
2085 list (keep the list sorted Most Recently Used). */
2087 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2088 this->next = rego->arches;
2089 this->gdbarch = new_gdbarch;
2090 rego->arches = this;
2093 /* Check that the newly installed architecture is valid. Plug in
2094 any post init values. */
2095 new_gdbarch->dump_tdep = rego->dump_tdep;
2096 verify_gdbarch (new_gdbarch);
2097 new_gdbarch->initialized_p = 1;
2100 gdbarch_dump (new_gdbarch, gdb_stdlog);
2105 /* Make the specified architecture current. */
2108 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2110 gdb_assert (new_gdbarch != NULL);
2111 gdb_assert (new_gdbarch->initialized_p);
2112 target_gdbarch = new_gdbarch;
2113 observer_notify_architecture_changed (new_gdbarch);
2114 registers_changed ();
2117 extern void _initialize_gdbarch (void);
2120 _initialize_gdbarch (void)
2122 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2123 Set architecture debugging."), _("\\
2124 Show architecture debugging."), _("\\
2125 When non-zero, architecture debugging is enabled."),
2128 &setdebuglist, &showdebuglist);
2134 #../move-if-change new-gdbarch.c gdbarch.c
2135 compare_new gdbarch.c