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_dwarf2_addr_size, gdbarch_pointer_to_address and
388 # gdbarch_address_to_pointer as well.
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 # dwarf2_addr_size is the target address size as used in the Dwarf debug
396 # info. For .debug_frame FDEs, this is supposed to be the target address
397 # size from the associated CU header, and which is equivalent to the
398 # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
399 # Unfortunately there is no good way to determine this value. Therefore
400 # dwarf2_addr_size simply defaults to the target pointer size.
402 # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
403 # defined using the target's pointer size so far.
405 # Note that dwarf2_addr_size only needs to be redefined by a target if the
406 # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
407 # and if Dwarf versions < 4 need to be supported.
408 v:int:dwarf2_addr_size:::sizeof (void*):0:gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT:
410 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
411 v:int:char_signed:::1:-1:1
413 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
414 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
415 # Function for getting target's idea of a frame pointer. FIXME: GDB's
416 # whole scheme for dealing with "frames" and "frame pointers" needs a
418 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
420 M:void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
421 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
423 v:int:num_regs:::0:-1
424 # This macro gives the number of pseudo-registers that live in the
425 # register namespace but do not get fetched or stored on the target.
426 # These pseudo-registers may be aliases for other registers,
427 # combinations of other registers, or they may be computed by GDB.
428 v:int:num_pseudo_regs:::0:0::0
430 # GDB's standard (or well known) register numbers. These can map onto
431 # a real register or a pseudo (computed) register or not be defined at
433 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
434 v:int:sp_regnum:::-1:-1::0
435 v:int:pc_regnum:::-1:-1::0
436 v:int:ps_regnum:::-1:-1::0
437 v:int:fp0_regnum:::0:-1::0
438 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
439 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
440 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
441 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
442 # Convert from an sdb register number to an internal gdb register number.
443 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
444 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
445 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
446 m:const char *:register_name:int regnr:regnr::0
448 # Return the type of a register specified by the architecture. Only
449 # the register cache should call this function directly; others should
450 # use "register_type".
451 M:struct type *:register_type:int reg_nr:reg_nr
453 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
454 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
455 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
456 # deprecated_fp_regnum.
457 v:int:deprecated_fp_regnum:::-1:-1::0
459 # See gdbint.texinfo. See infcall.c.
460 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
461 v:int:call_dummy_location::::AT_ENTRY_POINT::0
462 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
464 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
465 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
466 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
467 # MAP a GDB RAW register number onto a simulator register number. See
468 # also include/...-sim.h.
469 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
470 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
471 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
472 # setjmp/longjmp support.
473 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
475 v:int:believe_pcc_promotion:::::::
477 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
478 f:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
479 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
480 # Construct a value representing the contents of register REGNUM in
481 # frame FRAME, interpreted as type TYPE. The routine needs to
482 # allocate and return a struct value with all value attributes
483 # (but not the value contents) filled in.
484 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
486 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
487 m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
488 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
490 # Return the return-value convention that will be used by FUNCTYPE
491 # to return a value of type VALTYPE. FUNCTYPE may be NULL in which
492 # case the return convention is computed based only on VALTYPE.
494 # If READBUF is not NULL, extract the return value and save it in this buffer.
496 # If WRITEBUF is not NULL, it contains a return value which will be
497 # stored into the appropriate register. This can be used when we want
498 # to force the value returned by a function (see the "return" command
500 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
502 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
503 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
504 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
505 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
506 # Return the adjusted address and kind to use for Z0/Z1 packets.
507 # KIND is usually the memory length of the breakpoint, but may have a
508 # different target-specific meaning.
509 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
510 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
511 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
512 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
513 v:CORE_ADDR:decr_pc_after_break:::0:::0
515 # A function can be addressed by either it's "pointer" (possibly a
516 # descriptor address) or "entry point" (first executable instruction).
517 # The method "convert_from_func_ptr_addr" converting the former to the
518 # latter. gdbarch_deprecated_function_start_offset is being used to implement
519 # a simplified subset of that functionality - the function's address
520 # corresponds to the "function pointer" and the function's start
521 # corresponds to the "function entry point" - and hence is redundant.
523 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
525 # Return the remote protocol register number associated with this
526 # register. Normally the identity mapping.
527 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
529 # Fetch the target specific address used to represent a load module.
530 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
532 v:CORE_ADDR:frame_args_skip:::0:::0
533 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
534 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
535 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
536 # frame-base. Enable frame-base before frame-unwind.
537 F:int:frame_num_args:struct frame_info *frame:frame
539 M:CORE_ADDR:frame_align:CORE_ADDR address:address
540 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
541 v:int:frame_red_zone_size
543 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
544 # On some machines there are bits in addresses which are not really
545 # part of the address, but are used by the kernel, the hardware, etc.
546 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
547 # we get a "real" address such as one would find in a symbol table.
548 # This is used only for addresses of instructions, and even then I'm
549 # not sure it's used in all contexts. It exists to deal with there
550 # being a few stray bits in the PC which would mislead us, not as some
551 # sort of generic thing to handle alignment or segmentation (it's
552 # possible it should be in TARGET_READ_PC instead).
553 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
554 # It is not at all clear why gdbarch_smash_text_address is not folded into
555 # gdbarch_addr_bits_remove.
556 m:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
558 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
559 # indicates if the target needs software single step. An ISA method to
562 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
563 # breakpoints using the breakpoint system instead of blatting memory directly
566 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
567 # target can single step. If not, then implement single step using breakpoints.
569 # A return value of 1 means that the software_single_step breakpoints
570 # were inserted; 0 means they were not.
571 F:int:software_single_step:struct frame_info *frame:frame
573 # Return non-zero if the processor is executing a delay slot and a
574 # further single-step is needed before the instruction finishes.
575 M:int:single_step_through_delay:struct frame_info *frame:frame
576 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
577 # disassembler. Perhaps objdump can handle it?
578 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
579 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
582 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
583 # evaluates non-zero, this is the address where the debugger will place
584 # a step-resume breakpoint to get us past the dynamic linker.
585 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
586 # Some systems also have trampoline code for returning from shared libs.
587 m:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
589 # A target might have problems with watchpoints as soon as the stack
590 # frame of the current function has been destroyed. This mostly happens
591 # as the first action in a funtion's epilogue. in_function_epilogue_p()
592 # is defined to return a non-zero value if either the given addr is one
593 # instruction after the stack destroying instruction up to the trailing
594 # return instruction or if we can figure out that the stack frame has
595 # already been invalidated regardless of the value of addr. Targets
596 # which don't suffer from that problem could just let this functionality
598 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
599 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
600 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
601 v:int:cannot_step_breakpoint:::0:0::0
602 v:int:have_nonsteppable_watchpoint:::0:0::0
603 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
604 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
605 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
606 # Is a register in a group
607 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
608 # Fetch the pointer to the ith function argument.
609 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
611 # Return the appropriate register set for a core file section with
612 # name SECT_NAME and size SECT_SIZE.
613 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
615 # Supported register notes in a core file.
616 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
618 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
619 # core file into buffer READBUF with length LEN.
620 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
622 # How the core target converts a PTID from a core file to a string.
623 M:char *:core_pid_to_str:ptid_t ptid:ptid
625 # BFD target to use when generating a core file.
626 V:const char *:gcore_bfd_target:::0:0:::gdbarch->gcore_bfd_target
628 # If the elements of C++ vtables are in-place function descriptors rather
629 # than normal function pointers (which may point to code or a descriptor),
631 v:int:vtable_function_descriptors:::0:0::0
633 # Set if the least significant bit of the delta is used instead of the least
634 # significant bit of the pfn for pointers to virtual member functions.
635 v:int:vbit_in_delta:::0:0::0
637 # Advance PC to next instruction in order to skip a permanent breakpoint.
638 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
640 # The maximum length of an instruction on this architecture.
641 V:ULONGEST:max_insn_length:::0:0
643 # Copy the instruction at FROM to TO, and make any adjustments
644 # necessary to single-step it at that address.
646 # REGS holds the state the thread's registers will have before
647 # executing the copied instruction; the PC in REGS will refer to FROM,
648 # not the copy at TO. The caller should update it to point at TO later.
650 # Return a pointer to data of the architecture's choice to be passed
651 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
652 # the instruction's effects have been completely simulated, with the
653 # resulting state written back to REGS.
655 # For a general explanation of displaced stepping and how GDB uses it,
656 # see the comments in infrun.c.
658 # The TO area is only guaranteed to have space for
659 # gdbarch_max_insn_length (arch) bytes, so this function must not
660 # write more bytes than that to that area.
662 # If you do not provide this function, GDB assumes that the
663 # architecture does not support displaced stepping.
665 # If your architecture doesn't need to adjust instructions before
666 # single-stepping them, consider using simple_displaced_step_copy_insn
668 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
670 # Return true if GDB should use hardware single-stepping to execute
671 # the displaced instruction identified by CLOSURE. If false,
672 # GDB will simply restart execution at the displaced instruction
673 # location, and it is up to the target to ensure GDB will receive
674 # control again (e.g. by placing a software breakpoint instruction
675 # into the displaced instruction buffer).
677 # The default implementation returns false on all targets that
678 # provide a gdbarch_software_single_step routine, and true otherwise.
679 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
681 # Fix up the state resulting from successfully single-stepping a
682 # displaced instruction, to give the result we would have gotten from
683 # stepping the instruction in its original location.
685 # REGS is the register state resulting from single-stepping the
686 # displaced instruction.
688 # CLOSURE is the result from the matching call to
689 # gdbarch_displaced_step_copy_insn.
691 # If you provide gdbarch_displaced_step_copy_insn.but not this
692 # function, then GDB assumes that no fixup is needed after
693 # single-stepping the instruction.
695 # For a general explanation of displaced stepping and how GDB uses it,
696 # see the comments in infrun.c.
697 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
699 # Free a closure returned by gdbarch_displaced_step_copy_insn.
701 # If you provide gdbarch_displaced_step_copy_insn, you must provide
702 # this function as well.
704 # If your architecture uses closures that don't need to be freed, then
705 # you can use simple_displaced_step_free_closure here.
707 # For a general explanation of displaced stepping and how GDB uses it,
708 # see the comments in infrun.c.
709 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
711 # Return the address of an appropriate place to put displaced
712 # instructions while we step over them. There need only be one such
713 # place, since we're only stepping one thread over a breakpoint at a
716 # For a general explanation of displaced stepping and how GDB uses it,
717 # see the comments in infrun.c.
718 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
720 # Relocate an instruction to execute at a different address. OLDLOC
721 # is the address in the inferior memory where the instruction to
722 # relocate is currently at. On input, TO points to the destination
723 # where we want the instruction to be copied (and possibly adjusted)
724 # to. On output, it points to one past the end of the resulting
725 # instruction(s). The effect of executing the instruction at TO shall
726 # be the same as if executing it at FROM. For example, call
727 # instructions that implicitly push the return address on the stack
728 # should be adjusted to return to the instruction after OLDLOC;
729 # relative branches, and other PC-relative instructions need the
730 # offset adjusted; etc.
731 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
733 # Refresh overlay mapped state for section OSECT.
734 F:void:overlay_update:struct obj_section *osect:osect
736 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
738 # Handle special encoding of static variables in stabs debug info.
739 F:char *:static_transform_name:char *name:name
740 # Set if the address in N_SO or N_FUN stabs may be zero.
741 v:int:sofun_address_maybe_missing:::0:0::0
743 # Parse the instruction at ADDR storing in the record execution log
744 # the registers REGCACHE and memory ranges that will be affected when
745 # the instruction executes, along with their current values.
746 # Return -1 if something goes wrong, 0 otherwise.
747 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
749 # Save process state after a signal.
750 # Return -1 if something goes wrong, 0 otherwise.
751 M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
753 # Signal translation: translate inferior's signal (host's) number into
754 # GDB's representation.
755 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
756 # Signal translation: translate GDB's signal number into inferior's host
758 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
760 # Extra signal info inspection.
762 # Return a type suitable to inspect extra signal information.
763 M:struct type *:get_siginfo_type:void:
765 # Record architecture-specific information from the symbol table.
766 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
768 # Function for the 'catch syscall' feature.
770 # Get architecture-specific system calls information from registers.
771 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
773 # True if the list of shared libraries is one and only for all
774 # processes, as opposed to a list of shared libraries per inferior.
775 # This usually means that all processes, although may or may not share
776 # an address space, will see the same set of symbols at the same
778 v:int:has_global_solist:::0:0::0
780 # On some targets, even though each inferior has its own private
781 # address space, the debug interface takes care of making breakpoints
782 # visible to all address spaces automatically. For such cases,
783 # this property should be set to true.
784 v:int:has_global_breakpoints:::0:0::0
786 # True if inferiors share an address space (e.g., uClinux).
787 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
789 # True if a fast tracepoint can be set at an address.
790 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
792 # Return the "auto" target charset.
793 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
794 # Return the "auto" target wide charset.
795 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
797 # If non-empty, this is a file extension that will be opened in place
798 # of the file extension reported by the shared library list.
800 # This is most useful for toolchains that use a post-linker tool,
801 # where the names of the files run on the target differ in extension
802 # compared to the names of the files GDB should load for debug info.
803 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
805 # If true, the target OS has DOS-based file system semantics. That
806 # is, absolute paths include a drive name, and the backslash is
807 # considered a directory separator.
808 v:int:has_dos_based_file_system:::0:0::0
815 exec > new-gdbarch.log
816 function_list |
while do_read
819 ${class} ${returntype} ${function} ($formal)
823 eval echo \"\ \ \ \
${r}=\
${${r}}\"
825 if class_is_predicate_p
&& fallback_default_p
827 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
831 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
833 echo "Error: postdefault is useless when invalid_p=0" 1>&2
837 if class_is_multiarch_p
839 if class_is_predicate_p
; then :
840 elif test "x${predefault}" = "x"
842 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
851 compare_new gdbarch.log
857 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
859 /* Dynamic architecture support for GDB, the GNU debugger.
861 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
862 2007, 2008, 2009 Free Software Foundation, Inc.
864 This file is part of GDB.
866 This program is free software; you can redistribute it and/or modify
867 it under the terms of the GNU General Public License as published by
868 the Free Software Foundation; either version 3 of the License, or
869 (at your option) any later version.
871 This program is distributed in the hope that it will be useful,
872 but WITHOUT ANY WARRANTY; without even the implied warranty of
873 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
874 GNU General Public License for more details.
876 You should have received a copy of the GNU General Public License
877 along with this program. If not, see <http://www.gnu.org/licenses/>. */
879 /* This file was created with the aid of \`\`gdbarch.sh''.
881 The Bourne shell script \`\`gdbarch.sh'' creates the files
882 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
883 against the existing \`\`gdbarch.[hc]''. Any differences found
886 If editing this file, please also run gdbarch.sh and merge any
887 changes into that script. Conversely, when making sweeping changes
888 to this file, modifying gdbarch.sh and using its output may prove
910 struct minimal_symbol;
914 struct disassemble_info;
917 struct bp_target_info;
919 struct displaced_step_closure;
920 struct core_regset_section;
923 /* The architecture associated with the connection to the target.
925 The architecture vector provides some information that is really
926 a property of the target: The layout of certain packets, for instance;
927 or the solib_ops vector. Etc. To differentiate architecture accesses
928 to per-target properties from per-thread/per-frame/per-objfile properties,
929 accesses to per-target properties should be made through target_gdbarch.
931 Eventually, when support for multiple targets is implemented in
932 GDB, this global should be made target-specific. */
933 extern struct gdbarch *target_gdbarch;
939 printf "/* The following are pre-initialized by GDBARCH. */\n"
940 function_list |
while do_read
945 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
946 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
953 printf "/* The following are initialized by the target dependent code. */\n"
954 function_list |
while do_read
956 if [ -n "${comment}" ]
958 echo "${comment}" |
sed \
964 if class_is_predicate_p
967 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
969 if class_is_variable_p
972 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
973 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
975 if class_is_function_p
978 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
980 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
981 elif class_is_multiarch_p
983 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
985 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
987 if [ "x${formal}" = "xvoid" ]
989 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
991 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
993 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1000 /* Definition for an unknown syscall, used basically in error-cases. */
1001 #define UNKNOWN_SYSCALL (-1)
1003 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1006 /* Mechanism for co-ordinating the selection of a specific
1009 GDB targets (*-tdep.c) can register an interest in a specific
1010 architecture. Other GDB components can register a need to maintain
1011 per-architecture data.
1013 The mechanisms below ensures that there is only a loose connection
1014 between the set-architecture command and the various GDB
1015 components. Each component can independently register their need
1016 to maintain architecture specific data with gdbarch.
1020 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1023 The more traditional mega-struct containing architecture specific
1024 data for all the various GDB components was also considered. Since
1025 GDB is built from a variable number of (fairly independent)
1026 components it was determined that the global aproach was not
1030 /* Register a new architectural family with GDB.
1032 Register support for the specified ARCHITECTURE with GDB. When
1033 gdbarch determines that the specified architecture has been
1034 selected, the corresponding INIT function is called.
1038 The INIT function takes two parameters: INFO which contains the
1039 information available to gdbarch about the (possibly new)
1040 architecture; ARCHES which is a list of the previously created
1041 \`\`struct gdbarch'' for this architecture.
1043 The INFO parameter is, as far as possible, be pre-initialized with
1044 information obtained from INFO.ABFD or the global defaults.
1046 The ARCHES parameter is a linked list (sorted most recently used)
1047 of all the previously created architures for this architecture
1048 family. The (possibly NULL) ARCHES->gdbarch can used to access
1049 values from the previously selected architecture for this
1050 architecture family.
1052 The INIT function shall return any of: NULL - indicating that it
1053 doesn't recognize the selected architecture; an existing \`\`struct
1054 gdbarch'' from the ARCHES list - indicating that the new
1055 architecture is just a synonym for an earlier architecture (see
1056 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1057 - that describes the selected architecture (see gdbarch_alloc()).
1059 The DUMP_TDEP function shall print out all target specific values.
1060 Care should be taken to ensure that the function works in both the
1061 multi-arch and non- multi-arch cases. */
1065 struct gdbarch *gdbarch;
1066 struct gdbarch_list *next;
1071 /* Use default: NULL (ZERO). */
1072 const struct bfd_arch_info *bfd_arch_info;
1074 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1077 int byte_order_for_code;
1079 /* Use default: NULL (ZERO). */
1082 /* Use default: NULL (ZERO). */
1083 struct gdbarch_tdep_info *tdep_info;
1085 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1086 enum gdb_osabi osabi;
1088 /* Use default: NULL (ZERO). */
1089 const struct target_desc *target_desc;
1092 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1093 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1095 /* DEPRECATED - use gdbarch_register() */
1096 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1098 extern void gdbarch_register (enum bfd_architecture architecture,
1099 gdbarch_init_ftype *,
1100 gdbarch_dump_tdep_ftype *);
1103 /* Return a freshly allocated, NULL terminated, array of the valid
1104 architecture names. Since architectures are registered during the
1105 _initialize phase this function only returns useful information
1106 once initialization has been completed. */
1108 extern const char **gdbarch_printable_names (void);
1111 /* Helper function. Search the list of ARCHES for a GDBARCH that
1112 matches the information provided by INFO. */
1114 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1117 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1118 basic initialization using values obtained from the INFO and TDEP
1119 parameters. set_gdbarch_*() functions are called to complete the
1120 initialization of the object. */
1122 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1125 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1126 It is assumed that the caller freeds the \`\`struct
1129 extern void gdbarch_free (struct gdbarch *);
1132 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1133 obstack. The memory is freed when the corresponding architecture
1136 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1137 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1138 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1141 /* Helper function. Force an update of the current architecture.
1143 The actual architecture selected is determined by INFO, \`\`(gdb) set
1144 architecture'' et.al., the existing architecture and BFD's default
1145 architecture. INFO should be initialized to zero and then selected
1146 fields should be updated.
1148 Returns non-zero if the update succeeds */
1150 extern int gdbarch_update_p (struct gdbarch_info info);
1153 /* Helper function. Find an architecture matching info.
1155 INFO should be initialized using gdbarch_info_init, relevant fields
1156 set, and then finished using gdbarch_info_fill.
1158 Returns the corresponding architecture, or NULL if no matching
1159 architecture was found. */
1161 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1164 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1166 FIXME: kettenis/20031124: Of the functions that follow, only
1167 gdbarch_from_bfd is supposed to survive. The others will
1168 dissappear since in the future GDB will (hopefully) be truly
1169 multi-arch. However, for now we're still stuck with the concept of
1170 a single active architecture. */
1172 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1175 /* Register per-architecture data-pointer.
1177 Reserve space for a per-architecture data-pointer. An identifier
1178 for the reserved data-pointer is returned. That identifer should
1179 be saved in a local static variable.
1181 Memory for the per-architecture data shall be allocated using
1182 gdbarch_obstack_zalloc. That memory will be deleted when the
1183 corresponding architecture object is deleted.
1185 When a previously created architecture is re-selected, the
1186 per-architecture data-pointer for that previous architecture is
1187 restored. INIT() is not re-called.
1189 Multiple registrarants for any architecture are allowed (and
1190 strongly encouraged). */
1192 struct gdbarch_data;
1194 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1195 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1196 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1197 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1198 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1199 struct gdbarch_data *data,
1202 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1205 /* Set the dynamic target-system-dependent parameters (architecture,
1206 byte-order, ...) using information found in the BFD */
1208 extern void set_gdbarch_from_file (bfd *);
1211 /* Initialize the current architecture to the "first" one we find on
1214 extern void initialize_current_architecture (void);
1216 /* gdbarch trace variable */
1217 extern int gdbarch_debug;
1219 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1224 #../move-if-change new-gdbarch.h gdbarch.h
1225 compare_new gdbarch.h
1232 exec > new-gdbarch.c
1237 #include "arch-utils.h"
1240 #include "inferior.h"
1243 #include "floatformat.h"
1245 #include "gdb_assert.h"
1246 #include "gdb_string.h"
1247 #include "reggroups.h"
1249 #include "gdb_obstack.h"
1250 #include "observer.h"
1251 #include "regcache.h"
1253 /* Static function declarations */
1255 static void alloc_gdbarch_data (struct gdbarch *);
1257 /* Non-zero if we want to trace architecture code. */
1259 #ifndef GDBARCH_DEBUG
1260 #define GDBARCH_DEBUG 0
1262 int gdbarch_debug = GDBARCH_DEBUG;
1264 show_gdbarch_debug (struct ui_file *file, int from_tty,
1265 struct cmd_list_element *c, const char *value)
1267 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1271 pformat (const struct floatformat **format)
1276 /* Just print out one of them - this is only for diagnostics. */
1277 return format[0]->name;
1281 pstring (const char *string)
1290 # gdbarch open the gdbarch object
1292 printf "/* Maintain the struct gdbarch object */\n"
1294 printf "struct gdbarch\n"
1296 printf " /* Has this architecture been fully initialized? */\n"
1297 printf " int initialized_p;\n"
1299 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1300 printf " struct obstack *obstack;\n"
1302 printf " /* basic architectural information */\n"
1303 function_list |
while do_read
1307 printf " ${returntype} ${function};\n"
1311 printf " /* target specific vector. */\n"
1312 printf " struct gdbarch_tdep *tdep;\n"
1313 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1315 printf " /* per-architecture data-pointers */\n"
1316 printf " unsigned nr_data;\n"
1317 printf " void **data;\n"
1319 printf " /* per-architecture swap-regions */\n"
1320 printf " struct gdbarch_swap *swap;\n"
1323 /* Multi-arch values.
1325 When extending this structure you must:
1327 Add the field below.
1329 Declare set/get functions and define the corresponding
1332 gdbarch_alloc(): If zero/NULL is not a suitable default,
1333 initialize the new field.
1335 verify_gdbarch(): Confirm that the target updated the field
1338 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1341 \`\`startup_gdbarch()'': Append an initial value to the static
1342 variable (base values on the host's c-type system).
1344 get_gdbarch(): Implement the set/get functions (probably using
1345 the macro's as shortcuts).
1350 function_list |
while do_read
1352 if class_is_variable_p
1354 printf " ${returntype} ${function};\n"
1355 elif class_is_function_p
1357 printf " gdbarch_${function}_ftype *${function};\n"
1362 # A pre-initialized vector
1366 /* The default architecture uses host values (for want of a better
1370 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1372 printf "struct gdbarch startup_gdbarch =\n"
1374 printf " 1, /* Always initialized. */\n"
1375 printf " NULL, /* The obstack. */\n"
1376 printf " /* basic architecture information */\n"
1377 function_list |
while do_read
1381 printf " ${staticdefault}, /* ${function} */\n"
1385 /* target specific vector and its dump routine */
1387 /*per-architecture data-pointers and swap regions */
1389 /* Multi-arch values */
1391 function_list |
while do_read
1393 if class_is_function_p || class_is_variable_p
1395 printf " ${staticdefault}, /* ${function} */\n"
1399 /* startup_gdbarch() */
1402 struct gdbarch *target_gdbarch = &startup_gdbarch;
1405 # Create a new gdbarch struct
1408 /* Create a new \`\`struct gdbarch'' based on information provided by
1409 \`\`struct gdbarch_info''. */
1414 gdbarch_alloc (const struct gdbarch_info *info,
1415 struct gdbarch_tdep *tdep)
1417 struct gdbarch *gdbarch;
1419 /* Create an obstack for allocating all the per-architecture memory,
1420 then use that to allocate the architecture vector. */
1421 struct obstack *obstack = XMALLOC (struct obstack);
1422 obstack_init (obstack);
1423 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1424 memset (gdbarch, 0, sizeof (*gdbarch));
1425 gdbarch->obstack = obstack;
1427 alloc_gdbarch_data (gdbarch);
1429 gdbarch->tdep = tdep;
1432 function_list |
while do_read
1436 printf " gdbarch->${function} = info->${function};\n"
1440 printf " /* Force the explicit initialization of these. */\n"
1441 function_list |
while do_read
1443 if class_is_function_p || class_is_variable_p
1445 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1447 printf " gdbarch->${function} = ${predefault};\n"
1452 /* gdbarch_alloc() */
1458 # Free a gdbarch struct.
1462 /* Allocate extra space using the per-architecture obstack. */
1465 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1467 void *data = obstack_alloc (arch->obstack, size);
1469 memset (data, 0, size);
1474 /* Free a gdbarch struct. This should never happen in normal
1475 operation --- once you've created a gdbarch, you keep it around.
1476 However, if an architecture's init function encounters an error
1477 building the structure, it may need to clean up a partially
1478 constructed gdbarch. */
1481 gdbarch_free (struct gdbarch *arch)
1483 struct obstack *obstack;
1485 gdb_assert (arch != NULL);
1486 gdb_assert (!arch->initialized_p);
1487 obstack = arch->obstack;
1488 obstack_free (obstack, 0); /* Includes the ARCH. */
1493 # verify a new architecture
1497 /* Ensure that all values in a GDBARCH are reasonable. */
1500 verify_gdbarch (struct gdbarch *gdbarch)
1502 struct ui_file *log;
1503 struct cleanup *cleanups;
1507 log = mem_fileopen ();
1508 cleanups = make_cleanup_ui_file_delete (log);
1510 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1511 fprintf_unfiltered (log, "\n\tbyte-order");
1512 if (gdbarch->bfd_arch_info == NULL)
1513 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1514 /* Check those that need to be defined for the given multi-arch level. */
1516 function_list |
while do_read
1518 if class_is_function_p || class_is_variable_p
1520 if [ "x${invalid_p}" = "x0" ]
1522 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1523 elif class_is_predicate_p
1525 printf " /* Skip verify of ${function}, has predicate */\n"
1526 # FIXME: See do_read for potential simplification
1527 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1529 printf " if (${invalid_p})\n"
1530 printf " gdbarch->${function} = ${postdefault};\n"
1531 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1533 printf " if (gdbarch->${function} == ${predefault})\n"
1534 printf " gdbarch->${function} = ${postdefault};\n"
1535 elif [ -n "${postdefault}" ]
1537 printf " if (gdbarch->${function} == 0)\n"
1538 printf " gdbarch->${function} = ${postdefault};\n"
1539 elif [ -n "${invalid_p}" ]
1541 printf " if (${invalid_p})\n"
1542 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1543 elif [ -n "${predefault}" ]
1545 printf " if (gdbarch->${function} == ${predefault})\n"
1546 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1551 buf = ui_file_xstrdup (log, &length);
1552 make_cleanup (xfree, buf);
1554 internal_error (__FILE__, __LINE__,
1555 _("verify_gdbarch: the following are invalid ...%s"),
1557 do_cleanups (cleanups);
1561 # dump the structure
1565 /* Print out the details of the current architecture. */
1568 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1570 const char *gdb_nm_file = "<not-defined>";
1572 #if defined (GDB_NM_FILE)
1573 gdb_nm_file = GDB_NM_FILE;
1575 fprintf_unfiltered (file,
1576 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1579 function_list |
sort -t: -k 3 |
while do_read
1581 # First the predicate
1582 if class_is_predicate_p
1584 printf " fprintf_unfiltered (file,\n"
1585 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1586 printf " gdbarch_${function}_p (gdbarch));\n"
1588 # Print the corresponding value.
1589 if class_is_function_p
1591 printf " fprintf_unfiltered (file,\n"
1592 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1593 printf " host_address_to_string (gdbarch->${function}));\n"
1596 case "${print}:${returntype}" in
1599 print
="core_addr_to_string_nz (gdbarch->${function})"
1603 print
="plongest (gdbarch->${function})"
1609 printf " fprintf_unfiltered (file,\n"
1610 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1611 printf " ${print});\n"
1615 if (gdbarch->dump_tdep != NULL)
1616 gdbarch->dump_tdep (gdbarch, file);
1624 struct gdbarch_tdep *
1625 gdbarch_tdep (struct gdbarch *gdbarch)
1627 if (gdbarch_debug >= 2)
1628 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1629 return gdbarch->tdep;
1633 function_list |
while do_read
1635 if class_is_predicate_p
1639 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1641 printf " gdb_assert (gdbarch != NULL);\n"
1642 printf " return ${predicate};\n"
1645 if class_is_function_p
1648 printf "${returntype}\n"
1649 if [ "x${formal}" = "xvoid" ]
1651 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1653 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1656 printf " gdb_assert (gdbarch != NULL);\n"
1657 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1658 if class_is_predicate_p
&& test -n "${predefault}"
1660 # Allow a call to a function with a predicate.
1661 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1663 printf " if (gdbarch_debug >= 2)\n"
1664 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1665 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1667 if class_is_multiarch_p
1674 if class_is_multiarch_p
1676 params
="gdbarch, ${actual}"
1681 if [ "x${returntype}" = "xvoid" ]
1683 printf " gdbarch->${function} (${params});\n"
1685 printf " return gdbarch->${function} (${params});\n"
1690 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1691 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1693 printf " gdbarch->${function} = ${function};\n"
1695 elif class_is_variable_p
1698 printf "${returntype}\n"
1699 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1701 printf " gdb_assert (gdbarch != NULL);\n"
1702 if [ "x${invalid_p}" = "x0" ]
1704 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1705 elif [ -n "${invalid_p}" ]
1707 printf " /* Check variable is valid. */\n"
1708 printf " gdb_assert (!(${invalid_p}));\n"
1709 elif [ -n "${predefault}" ]
1711 printf " /* Check variable changed from pre-default. */\n"
1712 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1714 printf " if (gdbarch_debug >= 2)\n"
1715 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1716 printf " return gdbarch->${function};\n"
1720 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1721 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1723 printf " gdbarch->${function} = ${function};\n"
1725 elif class_is_info_p
1728 printf "${returntype}\n"
1729 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1731 printf " gdb_assert (gdbarch != NULL);\n"
1732 printf " if (gdbarch_debug >= 2)\n"
1733 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1734 printf " return gdbarch->${function};\n"
1739 # All the trailing guff
1743 /* Keep a registry of per-architecture data-pointers required by GDB
1750 gdbarch_data_pre_init_ftype *pre_init;
1751 gdbarch_data_post_init_ftype *post_init;
1754 struct gdbarch_data_registration
1756 struct gdbarch_data *data;
1757 struct gdbarch_data_registration *next;
1760 struct gdbarch_data_registry
1763 struct gdbarch_data_registration *registrations;
1766 struct gdbarch_data_registry gdbarch_data_registry =
1771 static struct gdbarch_data *
1772 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1773 gdbarch_data_post_init_ftype *post_init)
1775 struct gdbarch_data_registration **curr;
1777 /* Append the new registration. */
1778 for (curr = &gdbarch_data_registry.registrations;
1780 curr = &(*curr)->next);
1781 (*curr) = XMALLOC (struct gdbarch_data_registration);
1782 (*curr)->next = NULL;
1783 (*curr)->data = XMALLOC (struct gdbarch_data);
1784 (*curr)->data->index = gdbarch_data_registry.nr++;
1785 (*curr)->data->pre_init = pre_init;
1786 (*curr)->data->post_init = post_init;
1787 (*curr)->data->init_p = 1;
1788 return (*curr)->data;
1791 struct gdbarch_data *
1792 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1794 return gdbarch_data_register (pre_init, NULL);
1797 struct gdbarch_data *
1798 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1800 return gdbarch_data_register (NULL, post_init);
1803 /* Create/delete the gdbarch data vector. */
1806 alloc_gdbarch_data (struct gdbarch *gdbarch)
1808 gdb_assert (gdbarch->data == NULL);
1809 gdbarch->nr_data = gdbarch_data_registry.nr;
1810 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1813 /* Initialize the current value of the specified per-architecture
1817 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1818 struct gdbarch_data *data,
1821 gdb_assert (data->index < gdbarch->nr_data);
1822 gdb_assert (gdbarch->data[data->index] == NULL);
1823 gdb_assert (data->pre_init == NULL);
1824 gdbarch->data[data->index] = pointer;
1827 /* Return the current value of the specified per-architecture
1831 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1833 gdb_assert (data->index < gdbarch->nr_data);
1834 if (gdbarch->data[data->index] == NULL)
1836 /* The data-pointer isn't initialized, call init() to get a
1838 if (data->pre_init != NULL)
1839 /* Mid architecture creation: pass just the obstack, and not
1840 the entire architecture, as that way it isn't possible for
1841 pre-init code to refer to undefined architecture
1843 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1844 else if (gdbarch->initialized_p
1845 && data->post_init != NULL)
1846 /* Post architecture creation: pass the entire architecture
1847 (as all fields are valid), but be careful to also detect
1848 recursive references. */
1850 gdb_assert (data->init_p);
1852 gdbarch->data[data->index] = data->post_init (gdbarch);
1856 /* The architecture initialization hasn't completed - punt -
1857 hope that the caller knows what they are doing. Once
1858 deprecated_set_gdbarch_data has been initialized, this can be
1859 changed to an internal error. */
1861 gdb_assert (gdbarch->data[data->index] != NULL);
1863 return gdbarch->data[data->index];
1867 /* Keep a registry of the architectures known by GDB. */
1869 struct gdbarch_registration
1871 enum bfd_architecture bfd_architecture;
1872 gdbarch_init_ftype *init;
1873 gdbarch_dump_tdep_ftype *dump_tdep;
1874 struct gdbarch_list *arches;
1875 struct gdbarch_registration *next;
1878 static struct gdbarch_registration *gdbarch_registry = NULL;
1881 append_name (const char ***buf, int *nr, const char *name)
1883 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1889 gdbarch_printable_names (void)
1891 /* Accumulate a list of names based on the registed list of
1894 const char **arches = NULL;
1895 struct gdbarch_registration *rego;
1897 for (rego = gdbarch_registry;
1901 const struct bfd_arch_info *ap;
1902 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1904 internal_error (__FILE__, __LINE__,
1905 _("gdbarch_architecture_names: multi-arch unknown"));
1908 append_name (&arches, &nr_arches, ap->printable_name);
1913 append_name (&arches, &nr_arches, NULL);
1919 gdbarch_register (enum bfd_architecture bfd_architecture,
1920 gdbarch_init_ftype *init,
1921 gdbarch_dump_tdep_ftype *dump_tdep)
1923 struct gdbarch_registration **curr;
1924 const struct bfd_arch_info *bfd_arch_info;
1926 /* Check that BFD recognizes this architecture */
1927 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1928 if (bfd_arch_info == NULL)
1930 internal_error (__FILE__, __LINE__,
1931 _("gdbarch: Attempt to register unknown architecture (%d)"),
1934 /* Check that we haven't seen this architecture before */
1935 for (curr = &gdbarch_registry;
1937 curr = &(*curr)->next)
1939 if (bfd_architecture == (*curr)->bfd_architecture)
1940 internal_error (__FILE__, __LINE__,
1941 _("gdbarch: Duplicate registraration of architecture (%s)"),
1942 bfd_arch_info->printable_name);
1946 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1947 bfd_arch_info->printable_name,
1948 host_address_to_string (init));
1950 (*curr) = XMALLOC (struct gdbarch_registration);
1951 (*curr)->bfd_architecture = bfd_architecture;
1952 (*curr)->init = init;
1953 (*curr)->dump_tdep = dump_tdep;
1954 (*curr)->arches = NULL;
1955 (*curr)->next = NULL;
1959 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1960 gdbarch_init_ftype *init)
1962 gdbarch_register (bfd_architecture, init, NULL);
1966 /* Look for an architecture using gdbarch_info. */
1968 struct gdbarch_list *
1969 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1970 const struct gdbarch_info *info)
1972 for (; arches != NULL; arches = arches->next)
1974 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1976 if (info->byte_order != arches->gdbarch->byte_order)
1978 if (info->osabi != arches->gdbarch->osabi)
1980 if (info->target_desc != arches->gdbarch->target_desc)
1988 /* Find an architecture that matches the specified INFO. Create a new
1989 architecture if needed. Return that new architecture. */
1992 gdbarch_find_by_info (struct gdbarch_info info)
1994 struct gdbarch *new_gdbarch;
1995 struct gdbarch_registration *rego;
1997 /* Fill in missing parts of the INFO struct using a number of
1998 sources: "set ..."; INFOabfd supplied; and the global
2000 gdbarch_info_fill (&info);
2002 /* Must have found some sort of architecture. */
2003 gdb_assert (info.bfd_arch_info != NULL);
2007 fprintf_unfiltered (gdb_stdlog,
2008 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2009 (info.bfd_arch_info != NULL
2010 ? info.bfd_arch_info->printable_name
2012 fprintf_unfiltered (gdb_stdlog,
2013 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2015 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2016 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2018 fprintf_unfiltered (gdb_stdlog,
2019 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2020 info.osabi, gdbarch_osabi_name (info.osabi));
2021 fprintf_unfiltered (gdb_stdlog,
2022 "gdbarch_find_by_info: info.abfd %s\n",
2023 host_address_to_string (info.abfd));
2024 fprintf_unfiltered (gdb_stdlog,
2025 "gdbarch_find_by_info: info.tdep_info %s\n",
2026 host_address_to_string (info.tdep_info));
2029 /* Find the tdep code that knows about this architecture. */
2030 for (rego = gdbarch_registry;
2033 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2038 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2039 "No matching architecture\n");
2043 /* Ask the tdep code for an architecture that matches "info". */
2044 new_gdbarch = rego->init (info, rego->arches);
2046 /* Did the tdep code like it? No. Reject the change and revert to
2047 the old architecture. */
2048 if (new_gdbarch == NULL)
2051 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2052 "Target rejected architecture\n");
2056 /* Is this a pre-existing architecture (as determined by already
2057 being initialized)? Move it to the front of the architecture
2058 list (keeping the list sorted Most Recently Used). */
2059 if (new_gdbarch->initialized_p)
2061 struct gdbarch_list **list;
2062 struct gdbarch_list *this;
2064 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2065 "Previous architecture %s (%s) selected\n",
2066 host_address_to_string (new_gdbarch),
2067 new_gdbarch->bfd_arch_info->printable_name);
2068 /* Find the existing arch in the list. */
2069 for (list = ®o->arches;
2070 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2071 list = &(*list)->next);
2072 /* It had better be in the list of architectures. */
2073 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2076 (*list) = this->next;
2077 /* Insert THIS at the front. */
2078 this->next = rego->arches;
2079 rego->arches = this;
2084 /* It's a new architecture. */
2086 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2087 "New architecture %s (%s) selected\n",
2088 host_address_to_string (new_gdbarch),
2089 new_gdbarch->bfd_arch_info->printable_name);
2091 /* Insert the new architecture into the front of the architecture
2092 list (keep the list sorted Most Recently Used). */
2094 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2095 this->next = rego->arches;
2096 this->gdbarch = new_gdbarch;
2097 rego->arches = this;
2100 /* Check that the newly installed architecture is valid. Plug in
2101 any post init values. */
2102 new_gdbarch->dump_tdep = rego->dump_tdep;
2103 verify_gdbarch (new_gdbarch);
2104 new_gdbarch->initialized_p = 1;
2107 gdbarch_dump (new_gdbarch, gdb_stdlog);
2112 /* Make the specified architecture current. */
2115 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2117 gdb_assert (new_gdbarch != NULL);
2118 gdb_assert (new_gdbarch->initialized_p);
2119 target_gdbarch = new_gdbarch;
2120 observer_notify_architecture_changed (new_gdbarch);
2121 registers_changed ();
2124 extern void _initialize_gdbarch (void);
2127 _initialize_gdbarch (void)
2129 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2130 Set architecture debugging."), _("\\
2131 Show architecture debugging."), _("\\
2132 When non-zero, architecture debugging is enabled."),
2135 &setdebuglist, &showdebuglist);
2141 #../move-if-change new-gdbarch.c gdbarch.c
2142 compare_new gdbarch.c