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 # Return the "auto" target charset.
771 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
772 # Return the "auto" target wide charset.
773 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
775 # If non-empty, this is a file extension that will be opened in place
776 # of the file extension reported by the shared library list.
778 # This is most useful for toolchains that use a post-linker tool,
779 # where the names of the files run on the target differ in extension
780 # compared to the names of the files GDB should load for debug info.
781 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
783 # If true, the target OS has DOS-based file system semantics. That
784 # is, absolute paths include a drive name, and the backslash is
785 # considered a directory separator.
786 v:int:has_dos_based_file_system:::0:0::0
793 exec > new-gdbarch.log
794 function_list | while do_read
797 ${class} ${returntype} ${function} ($formal)
801 eval echo \"\ \ \ \ ${r}=\${${r}}\"
803 if class_is_predicate_p && fallback_default_p
805 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
809 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
811 echo "Error: postdefault is useless when invalid_p=0" 1>&2
815 if class_is_multiarch_p
817 if class_is_predicate_p ; then :
818 elif test "x${predefault}" = "x"
820 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
829 compare_new gdbarch.log
835 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
837 /* Dynamic architecture support for GDB, the GNU debugger.
839 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
840 2007, 2008, 2009 Free Software Foundation, Inc.
842 This file is part of GDB.
844 This program is free software; you can redistribute it and/or modify
845 it under the terms of the GNU General Public License as published by
846 the Free Software Foundation; either version 3 of the License, or
847 (at your option) any later version.
849 This program is distributed in the hope that it will be useful,
850 but WITHOUT ANY WARRANTY; without even the implied warranty of
851 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
852 GNU General Public License for more details.
854 You should have received a copy of the GNU General Public License
855 along with this program. If not, see <http://www.gnu.org/licenses/>. */
857 /* This file was created with the aid of \`\`gdbarch.sh''.
859 The Bourne shell script \`\`gdbarch.sh'' creates the files
860 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
861 against the existing \`\`gdbarch.[hc]''. Any differences found
864 If editing this file, please also run gdbarch.sh and merge any
865 changes into that script. Conversely, when making sweeping changes
866 to this file, modifying gdbarch.sh and using its output may prove
888 struct minimal_symbol;
892 struct disassemble_info;
895 struct bp_target_info;
897 struct displaced_step_closure;
898 struct core_regset_section;
901 /* The architecture associated with the connection to the target.
903 The architecture vector provides some information that is really
904 a property of the target: The layout of certain packets, for instance;
905 or the solib_ops vector. Etc. To differentiate architecture accesses
906 to per-target properties from per-thread/per-frame/per-objfile properties,
907 accesses to per-target properties should be made through target_gdbarch.
909 Eventually, when support for multiple targets is implemented in
910 GDB, this global should be made target-specific. */
911 extern struct gdbarch *target_gdbarch;
917 printf "/* The following are pre-initialized by GDBARCH. */\n"
918 function_list | while do_read
923 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
924 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
931 printf "/* The following are initialized by the target dependent code. */\n"
932 function_list | while do_read
934 if [ -n "${comment}" ]
936 echo "${comment}" | sed \
942 if class_is_predicate_p
945 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
947 if class_is_variable_p
950 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
951 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
953 if class_is_function_p
956 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
958 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
959 elif class_is_multiarch_p
961 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
963 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
965 if [ "x${formal}" = "xvoid" ]
967 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
969 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
971 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
978 /* Definition for an unknown syscall, used basically in error-cases. */
979 #define UNKNOWN_SYSCALL (-1)
981 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
984 /* Mechanism for co-ordinating the selection of a specific
987 GDB targets (*-tdep.c) can register an interest in a specific
988 architecture. Other GDB components can register a need to maintain
989 per-architecture data.
991 The mechanisms below ensures that there is only a loose connection
992 between the set-architecture command and the various GDB
993 components. Each component can independently register their need
994 to maintain architecture specific data with gdbarch.
998 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1001 The more traditional mega-struct containing architecture specific
1002 data for all the various GDB components was also considered. Since
1003 GDB is built from a variable number of (fairly independent)
1004 components it was determined that the global aproach was not
1008 /* Register a new architectural family with GDB.
1010 Register support for the specified ARCHITECTURE with GDB. When
1011 gdbarch determines that the specified architecture has been
1012 selected, the corresponding INIT function is called.
1016 The INIT function takes two parameters: INFO which contains the
1017 information available to gdbarch about the (possibly new)
1018 architecture; ARCHES which is a list of the previously created
1019 \`\`struct gdbarch'' for this architecture.
1021 The INFO parameter is, as far as possible, be pre-initialized with
1022 information obtained from INFO.ABFD or the global defaults.
1024 The ARCHES parameter is a linked list (sorted most recently used)
1025 of all the previously created architures for this architecture
1026 family. The (possibly NULL) ARCHES->gdbarch can used to access
1027 values from the previously selected architecture for this
1028 architecture family.
1030 The INIT function shall return any of: NULL - indicating that it
1031 doesn't recognize the selected architecture; an existing \`\`struct
1032 gdbarch'' from the ARCHES list - indicating that the new
1033 architecture is just a synonym for an earlier architecture (see
1034 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1035 - that describes the selected architecture (see gdbarch_alloc()).
1037 The DUMP_TDEP function shall print out all target specific values.
1038 Care should be taken to ensure that the function works in both the
1039 multi-arch and non- multi-arch cases. */
1043 struct gdbarch *gdbarch;
1044 struct gdbarch_list *next;
1049 /* Use default: NULL (ZERO). */
1050 const struct bfd_arch_info *bfd_arch_info;
1052 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1055 int byte_order_for_code;
1057 /* Use default: NULL (ZERO). */
1060 /* Use default: NULL (ZERO). */
1061 struct gdbarch_tdep_info *tdep_info;
1063 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1064 enum gdb_osabi osabi;
1066 /* Use default: NULL (ZERO). */
1067 const struct target_desc *target_desc;
1070 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1071 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1073 /* DEPRECATED - use gdbarch_register() */
1074 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1076 extern void gdbarch_register (enum bfd_architecture architecture,
1077 gdbarch_init_ftype *,
1078 gdbarch_dump_tdep_ftype *);
1081 /* Return a freshly allocated, NULL terminated, array of the valid
1082 architecture names. Since architectures are registered during the
1083 _initialize phase this function only returns useful information
1084 once initialization has been completed. */
1086 extern const char **gdbarch_printable_names (void);
1089 /* Helper function. Search the list of ARCHES for a GDBARCH that
1090 matches the information provided by INFO. */
1092 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1095 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1096 basic initialization using values obtained from the INFO and TDEP
1097 parameters. set_gdbarch_*() functions are called to complete the
1098 initialization of the object. */
1100 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1103 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1104 It is assumed that the caller freeds the \`\`struct
1107 extern void gdbarch_free (struct gdbarch *);
1110 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1111 obstack. The memory is freed when the corresponding architecture
1114 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1115 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1116 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1119 /* Helper function. Force an update of the current architecture.
1121 The actual architecture selected is determined by INFO, \`\`(gdb) set
1122 architecture'' et.al., the existing architecture and BFD's default
1123 architecture. INFO should be initialized to zero and then selected
1124 fields should be updated.
1126 Returns non-zero if the update succeeds */
1128 extern int gdbarch_update_p (struct gdbarch_info info);
1131 /* Helper function. Find an architecture matching info.
1133 INFO should be initialized using gdbarch_info_init, relevant fields
1134 set, and then finished using gdbarch_info_fill.
1136 Returns the corresponding architecture, or NULL if no matching
1137 architecture was found. */
1139 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1142 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1144 FIXME: kettenis/20031124: Of the functions that follow, only
1145 gdbarch_from_bfd is supposed to survive. The others will
1146 dissappear since in the future GDB will (hopefully) be truly
1147 multi-arch. However, for now we're still stuck with the concept of
1148 a single active architecture. */
1150 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1153 /* Register per-architecture data-pointer.
1155 Reserve space for a per-architecture data-pointer. An identifier
1156 for the reserved data-pointer is returned. That identifer should
1157 be saved in a local static variable.
1159 Memory for the per-architecture data shall be allocated using
1160 gdbarch_obstack_zalloc. That memory will be deleted when the
1161 corresponding architecture object is deleted.
1163 When a previously created architecture is re-selected, the
1164 per-architecture data-pointer for that previous architecture is
1165 restored. INIT() is not re-called.
1167 Multiple registrarants for any architecture are allowed (and
1168 strongly encouraged). */
1170 struct gdbarch_data;
1172 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1173 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1174 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1175 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1176 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1177 struct gdbarch_data *data,
1180 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1183 /* Set the dynamic target-system-dependent parameters (architecture,
1184 byte-order, ...) using information found in the BFD */
1186 extern void set_gdbarch_from_file (bfd *);
1189 /* Initialize the current architecture to the "first" one we find on
1192 extern void initialize_current_architecture (void);
1194 /* gdbarch trace variable */
1195 extern int gdbarch_debug;
1197 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1202 #../move-if-change new-gdbarch.h gdbarch.h
1203 compare_new gdbarch.h
1210 exec > new-gdbarch.c
1215 #include "arch-utils.h"
1218 #include "inferior.h"
1221 #include "floatformat.h"
1223 #include "gdb_assert.h"
1224 #include "gdb_string.h"
1225 #include "reggroups.h"
1227 #include "gdb_obstack.h"
1228 #include "observer.h"
1229 #include "regcache.h"
1231 /* Static function declarations */
1233 static void alloc_gdbarch_data (struct gdbarch *);
1235 /* Non-zero if we want to trace architecture code. */
1237 #ifndef GDBARCH_DEBUG
1238 #define GDBARCH_DEBUG 0
1240 int gdbarch_debug = GDBARCH_DEBUG;
1242 show_gdbarch_debug (struct ui_file *file, int from_tty,
1243 struct cmd_list_element *c, const char *value)
1245 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1249 pformat (const struct floatformat **format)
1254 /* Just print out one of them - this is only for diagnostics. */
1255 return format[0]->name;
1259 pstring (const char *string)
1268 # gdbarch open the gdbarch object
1270 printf "/* Maintain the struct gdbarch object */\n"
1272 printf "struct gdbarch\n"
1274 printf " /* Has this architecture been fully initialized? */\n"
1275 printf " int initialized_p;\n"
1277 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1278 printf " struct obstack *obstack;\n"
1280 printf " /* basic architectural information */\n"
1281 function_list | while do_read
1285 printf " ${returntype} ${function};\n"
1289 printf " /* target specific vector. */\n"
1290 printf " struct gdbarch_tdep *tdep;\n"
1291 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1293 printf " /* per-architecture data-pointers */\n"
1294 printf " unsigned nr_data;\n"
1295 printf " void **data;\n"
1297 printf " /* per-architecture swap-regions */\n"
1298 printf " struct gdbarch_swap *swap;\n"
1301 /* Multi-arch values.
1303 When extending this structure you must:
1305 Add the field below.
1307 Declare set/get functions and define the corresponding
1310 gdbarch_alloc(): If zero/NULL is not a suitable default,
1311 initialize the new field.
1313 verify_gdbarch(): Confirm that the target updated the field
1316 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1319 \`\`startup_gdbarch()'': Append an initial value to the static
1320 variable (base values on the host's c-type system).
1322 get_gdbarch(): Implement the set/get functions (probably using
1323 the macro's as shortcuts).
1328 function_list | while do_read
1330 if class_is_variable_p
1332 printf " ${returntype} ${function};\n"
1333 elif class_is_function_p
1335 printf " gdbarch_${function}_ftype *${function};\n"
1340 # A pre-initialized vector
1344 /* The default architecture uses host values (for want of a better
1348 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1350 printf "struct gdbarch startup_gdbarch =\n"
1352 printf " 1, /* Always initialized. */\n"
1353 printf " NULL, /* The obstack. */\n"
1354 printf " /* basic architecture information */\n"
1355 function_list | while do_read
1359 printf " ${staticdefault}, /* ${function} */\n"
1363 /* target specific vector and its dump routine */
1365 /*per-architecture data-pointers and swap regions */
1367 /* Multi-arch values */
1369 function_list | while do_read
1371 if class_is_function_p || class_is_variable_p
1373 printf " ${staticdefault}, /* ${function} */\n"
1377 /* startup_gdbarch() */
1380 struct gdbarch *target_gdbarch = &startup_gdbarch;
1383 # Create a new gdbarch struct
1386 /* Create a new \`\`struct gdbarch'' based on information provided by
1387 \`\`struct gdbarch_info''. */
1392 gdbarch_alloc (const struct gdbarch_info *info,
1393 struct gdbarch_tdep *tdep)
1395 struct gdbarch *gdbarch;
1397 /* Create an obstack for allocating all the per-architecture memory,
1398 then use that to allocate the architecture vector. */
1399 struct obstack *obstack = XMALLOC (struct obstack);
1400 obstack_init (obstack);
1401 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1402 memset (gdbarch, 0, sizeof (*gdbarch));
1403 gdbarch->obstack = obstack;
1405 alloc_gdbarch_data (gdbarch);
1407 gdbarch->tdep = tdep;
1410 function_list | while do_read
1414 printf " gdbarch->${function} = info->${function};\n"
1418 printf " /* Force the explicit initialization of these. */\n"
1419 function_list | while do_read
1421 if class_is_function_p || class_is_variable_p
1423 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1425 printf " gdbarch->${function} = ${predefault};\n"
1430 /* gdbarch_alloc() */
1436 # Free a gdbarch struct.
1440 /* Allocate extra space using the per-architecture obstack. */
1443 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1445 void *data = obstack_alloc (arch->obstack, size);
1447 memset (data, 0, size);
1452 /* Free a gdbarch struct. This should never happen in normal
1453 operation --- once you've created a gdbarch, you keep it around.
1454 However, if an architecture's init function encounters an error
1455 building the structure, it may need to clean up a partially
1456 constructed gdbarch. */
1459 gdbarch_free (struct gdbarch *arch)
1461 struct obstack *obstack;
1463 gdb_assert (arch != NULL);
1464 gdb_assert (!arch->initialized_p);
1465 obstack = arch->obstack;
1466 obstack_free (obstack, 0); /* Includes the ARCH. */
1471 # verify a new architecture
1475 /* Ensure that all values in a GDBARCH are reasonable. */
1478 verify_gdbarch (struct gdbarch *gdbarch)
1480 struct ui_file *log;
1481 struct cleanup *cleanups;
1485 log = mem_fileopen ();
1486 cleanups = make_cleanup_ui_file_delete (log);
1488 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1489 fprintf_unfiltered (log, "\n\tbyte-order");
1490 if (gdbarch->bfd_arch_info == NULL)
1491 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1492 /* Check those that need to be defined for the given multi-arch level. */
1494 function_list | while do_read
1496 if class_is_function_p || class_is_variable_p
1498 if [ "x${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>";
1550 #if defined (GDB_NM_FILE)
1551 gdb_nm_file = GDB_NM_FILE;
1553 fprintf_unfiltered (file,
1554 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1557 function_list | sort -t: -k 3 | while do_read
1559 # First the predicate
1560 if class_is_predicate_p
1562 printf " fprintf_unfiltered (file,\n"
1563 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1564 printf " gdbarch_${function}_p (gdbarch));\n"
1566 # Print the corresponding value.
1567 if class_is_function_p
1569 printf " fprintf_unfiltered (file,\n"
1570 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1571 printf " host_address_to_string (gdbarch->${function}));\n"
1574 case "${print}:${returntype}" in
1577 print="core_addr_to_string_nz (gdbarch->${function})"
1581 print="plongest (gdbarch->${function})"
1587 printf " fprintf_unfiltered (file,\n"
1588 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1589 printf " ${print});\n"
1593 if (gdbarch->dump_tdep != NULL)
1594 gdbarch->dump_tdep (gdbarch, file);
1602 struct gdbarch_tdep *
1603 gdbarch_tdep (struct gdbarch *gdbarch)
1605 if (gdbarch_debug >= 2)
1606 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1607 return gdbarch->tdep;
1611 function_list | while do_read
1613 if class_is_predicate_p
1617 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1619 printf " gdb_assert (gdbarch != NULL);\n"
1620 printf " return ${predicate};\n"
1623 if class_is_function_p
1626 printf "${returntype}\n"
1627 if [ "x${formal}" = "xvoid" ]
1629 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1631 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1634 printf " gdb_assert (gdbarch != NULL);\n"
1635 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1636 if class_is_predicate_p && test -n "${predefault}"
1638 # Allow a call to a function with a predicate.
1639 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1641 printf " if (gdbarch_debug >= 2)\n"
1642 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1643 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1645 if class_is_multiarch_p
1652 if class_is_multiarch_p
1654 params="gdbarch, ${actual}"
1659 if [ "x${returntype}" = "xvoid" ]
1661 printf " gdbarch->${function} (${params});\n"
1663 printf " return gdbarch->${function} (${params});\n"
1668 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1669 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1671 printf " gdbarch->${function} = ${function};\n"
1673 elif class_is_variable_p
1676 printf "${returntype}\n"
1677 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1679 printf " gdb_assert (gdbarch != NULL);\n"
1680 if [ "x${invalid_p}" = "x0" ]
1682 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1683 elif [ -n "${invalid_p}" ]
1685 printf " /* Check variable is valid. */\n"
1686 printf " gdb_assert (!(${invalid_p}));\n"
1687 elif [ -n "${predefault}" ]
1689 printf " /* Check variable changed from pre-default. */\n"
1690 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1692 printf " if (gdbarch_debug >= 2)\n"
1693 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1694 printf " return gdbarch->${function};\n"
1698 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1699 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1701 printf " gdbarch->${function} = ${function};\n"
1703 elif class_is_info_p
1706 printf "${returntype}\n"
1707 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1709 printf " gdb_assert (gdbarch != NULL);\n"
1710 printf " if (gdbarch_debug >= 2)\n"
1711 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1712 printf " return gdbarch->${function};\n"
1717 # All the trailing guff
1721 /* Keep a registry of per-architecture data-pointers required by GDB
1728 gdbarch_data_pre_init_ftype *pre_init;
1729 gdbarch_data_post_init_ftype *post_init;
1732 struct gdbarch_data_registration
1734 struct gdbarch_data *data;
1735 struct gdbarch_data_registration *next;
1738 struct gdbarch_data_registry
1741 struct gdbarch_data_registration *registrations;
1744 struct gdbarch_data_registry gdbarch_data_registry =
1749 static struct gdbarch_data *
1750 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1751 gdbarch_data_post_init_ftype *post_init)
1753 struct gdbarch_data_registration **curr;
1755 /* Append the new registration. */
1756 for (curr = &gdbarch_data_registry.registrations;
1758 curr = &(*curr)->next);
1759 (*curr) = XMALLOC (struct gdbarch_data_registration);
1760 (*curr)->next = NULL;
1761 (*curr)->data = XMALLOC (struct gdbarch_data);
1762 (*curr)->data->index = gdbarch_data_registry.nr++;
1763 (*curr)->data->pre_init = pre_init;
1764 (*curr)->data->post_init = post_init;
1765 (*curr)->data->init_p = 1;
1766 return (*curr)->data;
1769 struct gdbarch_data *
1770 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1772 return gdbarch_data_register (pre_init, NULL);
1775 struct gdbarch_data *
1776 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1778 return gdbarch_data_register (NULL, post_init);
1781 /* Create/delete the gdbarch data vector. */
1784 alloc_gdbarch_data (struct gdbarch *gdbarch)
1786 gdb_assert (gdbarch->data == NULL);
1787 gdbarch->nr_data = gdbarch_data_registry.nr;
1788 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1791 /* Initialize the current value of the specified per-architecture
1795 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1796 struct gdbarch_data *data,
1799 gdb_assert (data->index < gdbarch->nr_data);
1800 gdb_assert (gdbarch->data[data->index] == NULL);
1801 gdb_assert (data->pre_init == NULL);
1802 gdbarch->data[data->index] = pointer;
1805 /* Return the current value of the specified per-architecture
1809 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1811 gdb_assert (data->index < gdbarch->nr_data);
1812 if (gdbarch->data[data->index] == NULL)
1814 /* The data-pointer isn't initialized, call init() to get a
1816 if (data->pre_init != NULL)
1817 /* Mid architecture creation: pass just the obstack, and not
1818 the entire architecture, as that way it isn't possible for
1819 pre-init code to refer to undefined architecture
1821 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1822 else if (gdbarch->initialized_p
1823 && data->post_init != NULL)
1824 /* Post architecture creation: pass the entire architecture
1825 (as all fields are valid), but be careful to also detect
1826 recursive references. */
1828 gdb_assert (data->init_p);
1830 gdbarch->data[data->index] = data->post_init (gdbarch);
1834 /* The architecture initialization hasn't completed - punt -
1835 hope that the caller knows what they are doing. Once
1836 deprecated_set_gdbarch_data has been initialized, this can be
1837 changed to an internal error. */
1839 gdb_assert (gdbarch->data[data->index] != NULL);
1841 return gdbarch->data[data->index];
1845 /* Keep a registry of the architectures known by GDB. */
1847 struct gdbarch_registration
1849 enum bfd_architecture bfd_architecture;
1850 gdbarch_init_ftype *init;
1851 gdbarch_dump_tdep_ftype *dump_tdep;
1852 struct gdbarch_list *arches;
1853 struct gdbarch_registration *next;
1856 static struct gdbarch_registration *gdbarch_registry = NULL;
1859 append_name (const char ***buf, int *nr, const char *name)
1861 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1867 gdbarch_printable_names (void)
1869 /* Accumulate a list of names based on the registed list of
1872 const char **arches = NULL;
1873 struct gdbarch_registration *rego;
1875 for (rego = gdbarch_registry;
1879 const struct bfd_arch_info *ap;
1880 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1882 internal_error (__FILE__, __LINE__,
1883 _("gdbarch_architecture_names: multi-arch unknown"));
1886 append_name (&arches, &nr_arches, ap->printable_name);
1891 append_name (&arches, &nr_arches, NULL);
1897 gdbarch_register (enum bfd_architecture bfd_architecture,
1898 gdbarch_init_ftype *init,
1899 gdbarch_dump_tdep_ftype *dump_tdep)
1901 struct gdbarch_registration **curr;
1902 const struct bfd_arch_info *bfd_arch_info;
1904 /* Check that BFD recognizes this architecture */
1905 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1906 if (bfd_arch_info == NULL)
1908 internal_error (__FILE__, __LINE__,
1909 _("gdbarch: Attempt to register unknown architecture (%d)"),
1912 /* Check that we haven't seen this architecture before */
1913 for (curr = &gdbarch_registry;
1915 curr = &(*curr)->next)
1917 if (bfd_architecture == (*curr)->bfd_architecture)
1918 internal_error (__FILE__, __LINE__,
1919 _("gdbarch: Duplicate registraration of architecture (%s)"),
1920 bfd_arch_info->printable_name);
1924 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1925 bfd_arch_info->printable_name,
1926 host_address_to_string (init));
1928 (*curr) = XMALLOC (struct gdbarch_registration);
1929 (*curr)->bfd_architecture = bfd_architecture;
1930 (*curr)->init = init;
1931 (*curr)->dump_tdep = dump_tdep;
1932 (*curr)->arches = NULL;
1933 (*curr)->next = NULL;
1937 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1938 gdbarch_init_ftype *init)
1940 gdbarch_register (bfd_architecture, init, NULL);
1944 /* Look for an architecture using gdbarch_info. */
1946 struct gdbarch_list *
1947 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1948 const struct gdbarch_info *info)
1950 for (; arches != NULL; arches = arches->next)
1952 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1954 if (info->byte_order != arches->gdbarch->byte_order)
1956 if (info->osabi != arches->gdbarch->osabi)
1958 if (info->target_desc != arches->gdbarch->target_desc)
1966 /* Find an architecture that matches the specified INFO. Create a new
1967 architecture if needed. Return that new architecture. */
1970 gdbarch_find_by_info (struct gdbarch_info info)
1972 struct gdbarch *new_gdbarch;
1973 struct gdbarch_registration *rego;
1975 /* Fill in missing parts of the INFO struct using a number of
1976 sources: "set ..."; INFOabfd supplied; and the global
1978 gdbarch_info_fill (&info);
1980 /* Must have found some sort of architecture. */
1981 gdb_assert (info.bfd_arch_info != NULL);
1985 fprintf_unfiltered (gdb_stdlog,
1986 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
1987 (info.bfd_arch_info != NULL
1988 ? info.bfd_arch_info->printable_name
1990 fprintf_unfiltered (gdb_stdlog,
1991 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
1993 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1994 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1996 fprintf_unfiltered (gdb_stdlog,
1997 "gdbarch_find_by_info: info.osabi %d (%s)\n",
1998 info.osabi, gdbarch_osabi_name (info.osabi));
1999 fprintf_unfiltered (gdb_stdlog,
2000 "gdbarch_find_by_info: info.abfd %s\n",
2001 host_address_to_string (info.abfd));
2002 fprintf_unfiltered (gdb_stdlog,
2003 "gdbarch_find_by_info: info.tdep_info %s\n",
2004 host_address_to_string (info.tdep_info));
2007 /* Find the tdep code that knows about this architecture. */
2008 for (rego = gdbarch_registry;
2011 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2016 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2017 "No matching architecture\n");
2021 /* Ask the tdep code for an architecture that matches "info". */
2022 new_gdbarch = rego->init (info, rego->arches);
2024 /* Did the tdep code like it? No. Reject the change and revert to
2025 the old architecture. */
2026 if (new_gdbarch == NULL)
2029 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2030 "Target rejected architecture\n");
2034 /* Is this a pre-existing architecture (as determined by already
2035 being initialized)? Move it to the front of the architecture
2036 list (keeping the list sorted Most Recently Used). */
2037 if (new_gdbarch->initialized_p)
2039 struct gdbarch_list **list;
2040 struct gdbarch_list *this;
2042 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2043 "Previous architecture %s (%s) selected\n",
2044 host_address_to_string (new_gdbarch),
2045 new_gdbarch->bfd_arch_info->printable_name);
2046 /* Find the existing arch in the list. */
2047 for (list = ®o->arches;
2048 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2049 list = &(*list)->next);
2050 /* It had better be in the list of architectures. */
2051 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2054 (*list) = this->next;
2055 /* Insert THIS at the front. */
2056 this->next = rego->arches;
2057 rego->arches = this;
2062 /* It's a new architecture. */
2064 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2065 "New architecture %s (%s) selected\n",
2066 host_address_to_string (new_gdbarch),
2067 new_gdbarch->bfd_arch_info->printable_name);
2069 /* Insert the new architecture into the front of the architecture
2070 list (keep the list sorted Most Recently Used). */
2072 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2073 this->next = rego->arches;
2074 this->gdbarch = new_gdbarch;
2075 rego->arches = this;
2078 /* Check that the newly installed architecture is valid. Plug in
2079 any post init values. */
2080 new_gdbarch->dump_tdep = rego->dump_tdep;
2081 verify_gdbarch (new_gdbarch);
2082 new_gdbarch->initialized_p = 1;
2085 gdbarch_dump (new_gdbarch, gdb_stdlog);
2090 /* Make the specified architecture current. */
2093 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2095 gdb_assert (new_gdbarch != NULL);
2096 gdb_assert (new_gdbarch->initialized_p);
2097 target_gdbarch = new_gdbarch;
2098 observer_notify_architecture_changed (new_gdbarch);
2099 registers_changed ();
2102 extern void _initialize_gdbarch (void);
2105 _initialize_gdbarch (void)
2107 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2108 Set architecture debugging."), _("\\
2109 Show architecture debugging."), _("\\
2110 When non-zero, architecture debugging is enabled."),
2113 &setdebuglist, &showdebuglist);
2119 #../move-if-change new-gdbarch.c gdbarch.c
2120 compare_new gdbarch.c