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, 2011 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:enum register_status:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
421 # Read a register into a new struct value. If the register is wholly
422 # or partly unavailable, this should call mark_value_bytes_unavailable
423 # as appropriate. If this is defined, then pseudo_register_read will
425 M:struct value *:pseudo_register_read_value:struct regcache *regcache, int cookednum:regcache, cookednum
426 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
428 v:int:num_regs:::0:-1
429 # This macro gives the number of pseudo-registers that live in the
430 # register namespace but do not get fetched or stored on the target.
431 # These pseudo-registers may be aliases for other registers,
432 # combinations of other registers, or they may be computed by GDB.
433 v:int:num_pseudo_regs:::0:0::0
435 # Assemble agent expression bytecode to collect pseudo-register REG.
436 # Return -1 if something goes wrong, 0 otherwise.
437 M:int:ax_pseudo_register_collect:struct agent_expr *ax, int reg:ax, reg
439 # Assemble agent expression bytecode to push the value of pseudo-register
440 # REG on the interpreter stack.
441 # Return -1 if something goes wrong, 0 otherwise.
442 M:int:ax_pseudo_register_push_stack:struct agent_expr *ax, int reg:ax, reg
444 # GDB's standard (or well known) register numbers. These can map onto
445 # a real register or a pseudo (computed) register or not be defined at
447 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
448 v:int:sp_regnum:::-1:-1::0
449 v:int:pc_regnum:::-1:-1::0
450 v:int:ps_regnum:::-1:-1::0
451 v:int:fp0_regnum:::0:-1::0
452 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
453 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
454 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
455 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
456 # Convert from an sdb register number to an internal gdb register number.
457 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
458 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
459 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
460 m:const char *:register_name:int regnr:regnr::0
462 # Return the type of a register specified by the architecture. Only
463 # the register cache should call this function directly; others should
464 # use "register_type".
465 M:struct type *:register_type:int reg_nr:reg_nr
467 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
468 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
469 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
470 # deprecated_fp_regnum.
471 v:int:deprecated_fp_regnum:::-1:-1::0
473 # See gdbint.texinfo. See infcall.c.
474 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
475 v:int:call_dummy_location::::AT_ENTRY_POINT::0
476 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
478 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
479 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
480 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
481 # MAP a GDB RAW register number onto a simulator register number. See
482 # also include/...-sim.h.
483 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
484 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
485 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
486 # setjmp/longjmp support.
487 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
489 v:int:believe_pcc_promotion:::::::
491 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
492 f:int:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep:frame, regnum, type, buf, optimizedp, unavailablep:0
493 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
494 # Construct a value representing the contents of register REGNUM in
495 # frame FRAME, interpreted as type TYPE. The routine needs to
496 # allocate and return a struct value with all value attributes
497 # (but not the value contents) filled in.
498 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
500 m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
501 m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
502 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
504 # Return the return-value convention that will be used by FUNCTYPE
505 # to return a value of type VALTYPE. FUNCTYPE may be NULL in which
506 # case the return convention is computed based only on VALTYPE.
508 # If READBUF is not NULL, extract the return value and save it in this buffer.
510 # If WRITEBUF is not NULL, it contains a return value which will be
511 # stored into the appropriate register. This can be used when we want
512 # to force the value returned by a function (see the "return" command
514 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
516 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
517 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
518 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
519 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
520 # Return the adjusted address and kind to use for Z0/Z1 packets.
521 # KIND is usually the memory length of the breakpoint, but may have a
522 # different target-specific meaning.
523 m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
524 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
525 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
526 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
527 v:CORE_ADDR:decr_pc_after_break:::0:::0
529 # A function can be addressed by either it's "pointer" (possibly a
530 # descriptor address) or "entry point" (first executable instruction).
531 # The method "convert_from_func_ptr_addr" converting the former to the
532 # latter. gdbarch_deprecated_function_start_offset is being used to implement
533 # a simplified subset of that functionality - the function's address
534 # corresponds to the "function pointer" and the function's start
535 # corresponds to the "function entry point" - and hence is redundant.
537 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
539 # Return the remote protocol register number associated with this
540 # register. Normally the identity mapping.
541 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
543 # Fetch the target specific address used to represent a load module.
544 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
546 v:CORE_ADDR:frame_args_skip:::0:::0
547 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
548 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
549 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
550 # frame-base. Enable frame-base before frame-unwind.
551 F:int:frame_num_args:struct frame_info *frame:frame
553 M:CORE_ADDR:frame_align:CORE_ADDR address:address
554 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
555 v:int:frame_red_zone_size
557 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
558 # On some machines there are bits in addresses which are not really
559 # part of the address, but are used by the kernel, the hardware, etc.
560 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
561 # we get a "real" address such as one would find in a symbol table.
562 # This is used only for addresses of instructions, and even then I'm
563 # not sure it's used in all contexts. It exists to deal with there
564 # being a few stray bits in the PC which would mislead us, not as some
565 # sort of generic thing to handle alignment or segmentation (it's
566 # possible it should be in TARGET_READ_PC instead).
567 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
568 # It is not at all clear why gdbarch_smash_text_address is not folded into
569 # gdbarch_addr_bits_remove.
570 m:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
572 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
573 # indicates if the target needs software single step. An ISA method to
576 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
577 # breakpoints using the breakpoint system instead of blatting memory directly
580 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
581 # target can single step. If not, then implement single step using breakpoints.
583 # A return value of 1 means that the software_single_step breakpoints
584 # were inserted; 0 means they were not.
585 F:int:software_single_step:struct frame_info *frame:frame
587 # Return non-zero if the processor is executing a delay slot and a
588 # further single-step is needed before the instruction finishes.
589 M:int:single_step_through_delay:struct frame_info *frame:frame
590 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
591 # disassembler. Perhaps objdump can handle it?
592 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
593 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
596 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
597 # evaluates non-zero, this is the address where the debugger will place
598 # a step-resume breakpoint to get us past the dynamic linker.
599 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
600 # Some systems also have trampoline code for returning from shared libs.
601 m:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
603 # A target might have problems with watchpoints as soon as the stack
604 # frame of the current function has been destroyed. This mostly happens
605 # as the first action in a funtion's epilogue. in_function_epilogue_p()
606 # is defined to return a non-zero value if either the given addr is one
607 # instruction after the stack destroying instruction up to the trailing
608 # return instruction or if we can figure out that the stack frame has
609 # already been invalidated regardless of the value of addr. Targets
610 # which don't suffer from that problem could just let this functionality
612 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
613 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
614 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
615 v:int:cannot_step_breakpoint:::0:0::0
616 v:int:have_nonsteppable_watchpoint:::0:0::0
617 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
618 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
619 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
620 # Is a register in a group
621 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
622 # Fetch the pointer to the ith function argument.
623 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
625 # Return the appropriate register set for a core file section with
626 # name SECT_NAME and size SECT_SIZE.
627 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
629 # Supported register notes in a core file.
630 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
632 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
633 # core file into buffer READBUF with length LEN.
634 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
636 # How the core target converts a PTID from a core file to a string.
637 M:char *:core_pid_to_str:ptid_t ptid:ptid
639 # BFD target to use when generating a core file.
640 V:const char *:gcore_bfd_target:::0:0:::gdbarch->gcore_bfd_target
642 # If the elements of C++ vtables are in-place function descriptors rather
643 # than normal function pointers (which may point to code or a descriptor),
645 v:int:vtable_function_descriptors:::0:0::0
647 # Set if the least significant bit of the delta is used instead of the least
648 # significant bit of the pfn for pointers to virtual member functions.
649 v:int:vbit_in_delta:::0:0::0
651 # Advance PC to next instruction in order to skip a permanent breakpoint.
652 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
654 # The maximum length of an instruction on this architecture.
655 V:ULONGEST:max_insn_length:::0:0
657 # Copy the instruction at FROM to TO, and make any adjustments
658 # necessary to single-step it at that address.
660 # REGS holds the state the thread's registers will have before
661 # executing the copied instruction; the PC in REGS will refer to FROM,
662 # not the copy at TO. The caller should update it to point at TO later.
664 # Return a pointer to data of the architecture's choice to be passed
665 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
666 # the instruction's effects have been completely simulated, with the
667 # resulting state written back to REGS.
669 # For a general explanation of displaced stepping and how GDB uses it,
670 # see the comments in infrun.c.
672 # The TO area is only guaranteed to have space for
673 # gdbarch_max_insn_length (arch) bytes, so this function must not
674 # write more bytes than that to that area.
676 # If you do not provide this function, GDB assumes that the
677 # architecture does not support displaced stepping.
679 # If your architecture doesn't need to adjust instructions before
680 # single-stepping them, consider using simple_displaced_step_copy_insn
682 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
684 # Return true if GDB should use hardware single-stepping to execute
685 # the displaced instruction identified by CLOSURE. If false,
686 # GDB will simply restart execution at the displaced instruction
687 # location, and it is up to the target to ensure GDB will receive
688 # control again (e.g. by placing a software breakpoint instruction
689 # into the displaced instruction buffer).
691 # The default implementation returns false on all targets that
692 # provide a gdbarch_software_single_step routine, and true otherwise.
693 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
695 # Fix up the state resulting from successfully single-stepping a
696 # displaced instruction, to give the result we would have gotten from
697 # stepping the instruction in its original location.
699 # REGS is the register state resulting from single-stepping the
700 # displaced instruction.
702 # CLOSURE is the result from the matching call to
703 # gdbarch_displaced_step_copy_insn.
705 # If you provide gdbarch_displaced_step_copy_insn.but not this
706 # function, then GDB assumes that no fixup is needed after
707 # single-stepping the instruction.
709 # For a general explanation of displaced stepping and how GDB uses it,
710 # see the comments in infrun.c.
711 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
713 # Free a closure returned by gdbarch_displaced_step_copy_insn.
715 # If you provide gdbarch_displaced_step_copy_insn, you must provide
716 # this function as well.
718 # If your architecture uses closures that don't need to be freed, then
719 # you can use simple_displaced_step_free_closure here.
721 # For a general explanation of displaced stepping and how GDB uses it,
722 # see the comments in infrun.c.
723 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
725 # Return the address of an appropriate place to put displaced
726 # instructions while we step over them. There need only be one such
727 # place, since we're only stepping one thread over a breakpoint at a
730 # For a general explanation of displaced stepping and how GDB uses it,
731 # see the comments in infrun.c.
732 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
734 # Relocate an instruction to execute at a different address. OLDLOC
735 # is the address in the inferior memory where the instruction to
736 # relocate is currently at. On input, TO points to the destination
737 # where we want the instruction to be copied (and possibly adjusted)
738 # to. On output, it points to one past the end of the resulting
739 # instruction(s). The effect of executing the instruction at TO shall
740 # be the same as if executing it at FROM. For example, call
741 # instructions that implicitly push the return address on the stack
742 # should be adjusted to return to the instruction after OLDLOC;
743 # relative branches, and other PC-relative instructions need the
744 # offset adjusted; etc.
745 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
747 # Refresh overlay mapped state for section OSECT.
748 F:void:overlay_update:struct obj_section *osect:osect
750 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
752 # Handle special encoding of static variables in stabs debug info.
753 F:char *:static_transform_name:char *name:name
754 # Set if the address in N_SO or N_FUN stabs may be zero.
755 v:int:sofun_address_maybe_missing:::0:0::0
757 # Parse the instruction at ADDR storing in the record execution log
758 # the registers REGCACHE and memory ranges that will be affected when
759 # the instruction executes, along with their current values.
760 # Return -1 if something goes wrong, 0 otherwise.
761 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
763 # Save process state after a signal.
764 # Return -1 if something goes wrong, 0 otherwise.
765 M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
767 # Signal translation: translate inferior's signal (host's) number into
768 # GDB's representation.
769 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
770 # Signal translation: translate GDB's signal number into inferior's host
772 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
774 # Extra signal info inspection.
776 # Return a type suitable to inspect extra signal information.
777 M:struct type *:get_siginfo_type:void:
779 # Record architecture-specific information from the symbol table.
780 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
782 # Function for the 'catch syscall' feature.
784 # Get architecture-specific system calls information from registers.
785 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
787 # True if the list of shared libraries is one and only for all
788 # processes, as opposed to a list of shared libraries per inferior.
789 # This usually means that all processes, although may or may not share
790 # an address space, will see the same set of symbols at the same
792 v:int:has_global_solist:::0:0::0
794 # On some targets, even though each inferior has its own private
795 # address space, the debug interface takes care of making breakpoints
796 # visible to all address spaces automatically. For such cases,
797 # this property should be set to true.
798 v:int:has_global_breakpoints:::0:0::0
800 # True if inferiors share an address space (e.g., uClinux).
801 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
803 # True if a fast tracepoint can be set at an address.
804 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
806 # Return the "auto" target charset.
807 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
808 # Return the "auto" target wide charset.
809 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
811 # If non-empty, this is a file extension that will be opened in place
812 # of the file extension reported by the shared library list.
814 # This is most useful for toolchains that use a post-linker tool,
815 # where the names of the files run on the target differ in extension
816 # compared to the names of the files GDB should load for debug info.
817 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
819 # If true, the target OS has DOS-based file system semantics. That
820 # is, absolute paths include a drive name, and the backslash is
821 # considered a directory separator.
822 v:int:has_dos_based_file_system:::0:0::0
829 exec > new-gdbarch.log
830 function_list |
while do_read
833 ${class} ${returntype} ${function} ($formal)
837 eval echo \"\ \ \ \
${r}=\
${${r}}\"
839 if class_is_predicate_p
&& fallback_default_p
841 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
845 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
847 echo "Error: postdefault is useless when invalid_p=0" 1>&2
851 if class_is_multiarch_p
853 if class_is_predicate_p
; then :
854 elif test "x${predefault}" = "x"
856 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
865 compare_new gdbarch.log
871 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
873 /* Dynamic architecture support for GDB, the GNU debugger.
875 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
876 2007, 2008, 2009 Free Software Foundation, Inc.
878 This file is part of GDB.
880 This program is free software; you can redistribute it and/or modify
881 it under the terms of the GNU General Public License as published by
882 the Free Software Foundation; either version 3 of the License, or
883 (at your option) any later version.
885 This program is distributed in the hope that it will be useful,
886 but WITHOUT ANY WARRANTY; without even the implied warranty of
887 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
888 GNU General Public License for more details.
890 You should have received a copy of the GNU General Public License
891 along with this program. If not, see <http://www.gnu.org/licenses/>. */
893 /* This file was created with the aid of \`\`gdbarch.sh''.
895 The Bourne shell script \`\`gdbarch.sh'' creates the files
896 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
897 against the existing \`\`gdbarch.[hc]''. Any differences found
900 If editing this file, please also run gdbarch.sh and merge any
901 changes into that script. Conversely, when making sweeping changes
902 to this file, modifying gdbarch.sh and using its output may prove
924 struct minimal_symbol;
928 struct disassemble_info;
931 struct bp_target_info;
933 struct displaced_step_closure;
934 struct core_regset_section;
938 /* The architecture associated with the connection to the target.
940 The architecture vector provides some information that is really
941 a property of the target: The layout of certain packets, for instance;
942 or the solib_ops vector. Etc. To differentiate architecture accesses
943 to per-target properties from per-thread/per-frame/per-objfile properties,
944 accesses to per-target properties should be made through target_gdbarch.
946 Eventually, when support for multiple targets is implemented in
947 GDB, this global should be made target-specific. */
948 extern struct gdbarch *target_gdbarch;
954 printf "/* The following are pre-initialized by GDBARCH. */\n"
955 function_list |
while do_read
960 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
961 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
968 printf "/* The following are initialized by the target dependent code. */\n"
969 function_list |
while do_read
971 if [ -n "${comment}" ]
973 echo "${comment}" |
sed \
979 if class_is_predicate_p
982 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
984 if class_is_variable_p
987 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
988 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
990 if class_is_function_p
993 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
995 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
996 elif class_is_multiarch_p
998 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
1000 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
1002 if [ "x${formal}" = "xvoid" ]
1004 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
1006 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1008 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1015 /* Definition for an unknown syscall, used basically in error-cases. */
1016 #define UNKNOWN_SYSCALL (-1)
1018 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1021 /* Mechanism for co-ordinating the selection of a specific
1024 GDB targets (*-tdep.c) can register an interest in a specific
1025 architecture. Other GDB components can register a need to maintain
1026 per-architecture data.
1028 The mechanisms below ensures that there is only a loose connection
1029 between the set-architecture command and the various GDB
1030 components. Each component can independently register their need
1031 to maintain architecture specific data with gdbarch.
1035 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1038 The more traditional mega-struct containing architecture specific
1039 data for all the various GDB components was also considered. Since
1040 GDB is built from a variable number of (fairly independent)
1041 components it was determined that the global aproach was not
1045 /* Register a new architectural family with GDB.
1047 Register support for the specified ARCHITECTURE with GDB. When
1048 gdbarch determines that the specified architecture has been
1049 selected, the corresponding INIT function is called.
1053 The INIT function takes two parameters: INFO which contains the
1054 information available to gdbarch about the (possibly new)
1055 architecture; ARCHES which is a list of the previously created
1056 \`\`struct gdbarch'' for this architecture.
1058 The INFO parameter is, as far as possible, be pre-initialized with
1059 information obtained from INFO.ABFD or the global defaults.
1061 The ARCHES parameter is a linked list (sorted most recently used)
1062 of all the previously created architures for this architecture
1063 family. The (possibly NULL) ARCHES->gdbarch can used to access
1064 values from the previously selected architecture for this
1065 architecture family.
1067 The INIT function shall return any of: NULL - indicating that it
1068 doesn't recognize the selected architecture; an existing \`\`struct
1069 gdbarch'' from the ARCHES list - indicating that the new
1070 architecture is just a synonym for an earlier architecture (see
1071 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1072 - that describes the selected architecture (see gdbarch_alloc()).
1074 The DUMP_TDEP function shall print out all target specific values.
1075 Care should be taken to ensure that the function works in both the
1076 multi-arch and non- multi-arch cases. */
1080 struct gdbarch *gdbarch;
1081 struct gdbarch_list *next;
1086 /* Use default: NULL (ZERO). */
1087 const struct bfd_arch_info *bfd_arch_info;
1089 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1092 int byte_order_for_code;
1094 /* Use default: NULL (ZERO). */
1097 /* Use default: NULL (ZERO). */
1098 struct gdbarch_tdep_info *tdep_info;
1100 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1101 enum gdb_osabi osabi;
1103 /* Use default: NULL (ZERO). */
1104 const struct target_desc *target_desc;
1107 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1108 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1110 /* DEPRECATED - use gdbarch_register() */
1111 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1113 extern void gdbarch_register (enum bfd_architecture architecture,
1114 gdbarch_init_ftype *,
1115 gdbarch_dump_tdep_ftype *);
1118 /* Return a freshly allocated, NULL terminated, array of the valid
1119 architecture names. Since architectures are registered during the
1120 _initialize phase this function only returns useful information
1121 once initialization has been completed. */
1123 extern const char **gdbarch_printable_names (void);
1126 /* Helper function. Search the list of ARCHES for a GDBARCH that
1127 matches the information provided by INFO. */
1129 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1132 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1133 basic initialization using values obtained from the INFO and TDEP
1134 parameters. set_gdbarch_*() functions are called to complete the
1135 initialization of the object. */
1137 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1140 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1141 It is assumed that the caller freeds the \`\`struct
1144 extern void gdbarch_free (struct gdbarch *);
1147 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1148 obstack. The memory is freed when the corresponding architecture
1151 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1152 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1153 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1156 /* Helper function. Force an update of the current architecture.
1158 The actual architecture selected is determined by INFO, \`\`(gdb) set
1159 architecture'' et.al., the existing architecture and BFD's default
1160 architecture. INFO should be initialized to zero and then selected
1161 fields should be updated.
1163 Returns non-zero if the update succeeds. */
1165 extern int gdbarch_update_p (struct gdbarch_info info);
1168 /* Helper function. Find an architecture matching info.
1170 INFO should be initialized using gdbarch_info_init, relevant fields
1171 set, and then finished using gdbarch_info_fill.
1173 Returns the corresponding architecture, or NULL if no matching
1174 architecture was found. */
1176 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1179 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1181 FIXME: kettenis/20031124: Of the functions that follow, only
1182 gdbarch_from_bfd is supposed to survive. The others will
1183 dissappear since in the future GDB will (hopefully) be truly
1184 multi-arch. However, for now we're still stuck with the concept of
1185 a single active architecture. */
1187 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1190 /* Register per-architecture data-pointer.
1192 Reserve space for a per-architecture data-pointer. An identifier
1193 for the reserved data-pointer is returned. That identifer should
1194 be saved in a local static variable.
1196 Memory for the per-architecture data shall be allocated using
1197 gdbarch_obstack_zalloc. That memory will be deleted when the
1198 corresponding architecture object is deleted.
1200 When a previously created architecture is re-selected, the
1201 per-architecture data-pointer for that previous architecture is
1202 restored. INIT() is not re-called.
1204 Multiple registrarants for any architecture are allowed (and
1205 strongly encouraged). */
1207 struct gdbarch_data;
1209 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1210 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1211 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1212 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1213 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1214 struct gdbarch_data *data,
1217 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1220 /* Set the dynamic target-system-dependent parameters (architecture,
1221 byte-order, ...) using information found in the BFD. */
1223 extern void set_gdbarch_from_file (bfd *);
1226 /* Initialize the current architecture to the "first" one we find on
1229 extern void initialize_current_architecture (void);
1231 /* gdbarch trace variable */
1232 extern int gdbarch_debug;
1234 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1239 #../move-if-change new-gdbarch.h gdbarch.h
1240 compare_new gdbarch.h
1247 exec > new-gdbarch.c
1252 #include "arch-utils.h"
1255 #include "inferior.h"
1258 #include "floatformat.h"
1260 #include "gdb_assert.h"
1261 #include "gdb_string.h"
1262 #include "reggroups.h"
1264 #include "gdb_obstack.h"
1265 #include "observer.h"
1266 #include "regcache.h"
1268 /* Static function declarations */
1270 static void alloc_gdbarch_data (struct gdbarch *);
1272 /* Non-zero if we want to trace architecture code. */
1274 #ifndef GDBARCH_DEBUG
1275 #define GDBARCH_DEBUG 0
1277 int gdbarch_debug = GDBARCH_DEBUG;
1279 show_gdbarch_debug (struct ui_file *file, int from_tty,
1280 struct cmd_list_element *c, const char *value)
1282 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1286 pformat (const struct floatformat **format)
1291 /* Just print out one of them - this is only for diagnostics. */
1292 return format[0]->name;
1296 pstring (const char *string)
1305 # gdbarch open the gdbarch object
1307 printf "/* Maintain the struct gdbarch object. */\n"
1309 printf "struct gdbarch\n"
1311 printf " /* Has this architecture been fully initialized? */\n"
1312 printf " int initialized_p;\n"
1314 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1315 printf " struct obstack *obstack;\n"
1317 printf " /* basic architectural information. */\n"
1318 function_list |
while do_read
1322 printf " ${returntype} ${function};\n"
1326 printf " /* target specific vector. */\n"
1327 printf " struct gdbarch_tdep *tdep;\n"
1328 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1330 printf " /* per-architecture data-pointers. */\n"
1331 printf " unsigned nr_data;\n"
1332 printf " void **data;\n"
1334 printf " /* per-architecture swap-regions. */\n"
1335 printf " struct gdbarch_swap *swap;\n"
1338 /* Multi-arch values.
1340 When extending this structure you must:
1342 Add the field below.
1344 Declare set/get functions and define the corresponding
1347 gdbarch_alloc(): If zero/NULL is not a suitable default,
1348 initialize the new field.
1350 verify_gdbarch(): Confirm that the target updated the field
1353 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1356 \`\`startup_gdbarch()'': Append an initial value to the static
1357 variable (base values on the host's c-type system).
1359 get_gdbarch(): Implement the set/get functions (probably using
1360 the macro's as shortcuts).
1365 function_list |
while do_read
1367 if class_is_variable_p
1369 printf " ${returntype} ${function};\n"
1370 elif class_is_function_p
1372 printf " gdbarch_${function}_ftype *${function};\n"
1377 # A pre-initialized vector
1381 /* The default architecture uses host values (for want of a better
1385 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1387 printf "struct gdbarch startup_gdbarch =\n"
1389 printf " 1, /* Always initialized. */\n"
1390 printf " NULL, /* The obstack. */\n"
1391 printf " /* basic architecture information. */\n"
1392 function_list |
while do_read
1396 printf " ${staticdefault}, /* ${function} */\n"
1400 /* target specific vector and its dump routine. */
1402 /*per-architecture data-pointers and swap regions. */
1404 /* Multi-arch values */
1406 function_list |
while do_read
1408 if class_is_function_p || class_is_variable_p
1410 printf " ${staticdefault}, /* ${function} */\n"
1414 /* startup_gdbarch() */
1417 struct gdbarch *target_gdbarch = &startup_gdbarch;
1420 # Create a new gdbarch struct
1423 /* Create a new \`\`struct gdbarch'' based on information provided by
1424 \`\`struct gdbarch_info''. */
1429 gdbarch_alloc (const struct gdbarch_info *info,
1430 struct gdbarch_tdep *tdep)
1432 struct gdbarch *gdbarch;
1434 /* Create an obstack for allocating all the per-architecture memory,
1435 then use that to allocate the architecture vector. */
1436 struct obstack *obstack = XMALLOC (struct obstack);
1437 obstack_init (obstack);
1438 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1439 memset (gdbarch, 0, sizeof (*gdbarch));
1440 gdbarch->obstack = obstack;
1442 alloc_gdbarch_data (gdbarch);
1444 gdbarch->tdep = tdep;
1447 function_list |
while do_read
1451 printf " gdbarch->${function} = info->${function};\n"
1455 printf " /* Force the explicit initialization of these. */\n"
1456 function_list |
while do_read
1458 if class_is_function_p || class_is_variable_p
1460 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1462 printf " gdbarch->${function} = ${predefault};\n"
1467 /* gdbarch_alloc() */
1473 # Free a gdbarch struct.
1477 /* Allocate extra space using the per-architecture obstack. */
1480 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1482 void *data = obstack_alloc (arch->obstack, size);
1484 memset (data, 0, size);
1489 /* Free a gdbarch struct. This should never happen in normal
1490 operation --- once you've created a gdbarch, you keep it around.
1491 However, if an architecture's init function encounters an error
1492 building the structure, it may need to clean up a partially
1493 constructed gdbarch. */
1496 gdbarch_free (struct gdbarch *arch)
1498 struct obstack *obstack;
1500 gdb_assert (arch != NULL);
1501 gdb_assert (!arch->initialized_p);
1502 obstack = arch->obstack;
1503 obstack_free (obstack, 0); /* Includes the ARCH. */
1508 # verify a new architecture
1512 /* Ensure that all values in a GDBARCH are reasonable. */
1515 verify_gdbarch (struct gdbarch *gdbarch)
1517 struct ui_file *log;
1518 struct cleanup *cleanups;
1522 log = mem_fileopen ();
1523 cleanups = make_cleanup_ui_file_delete (log);
1525 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1526 fprintf_unfiltered (log, "\n\tbyte-order");
1527 if (gdbarch->bfd_arch_info == NULL)
1528 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1529 /* Check those that need to be defined for the given multi-arch level. */
1531 function_list |
while do_read
1533 if class_is_function_p || class_is_variable_p
1535 if [ "x${invalid_p}" = "x0" ]
1537 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1538 elif class_is_predicate_p
1540 printf " /* Skip verify of ${function}, has predicate. */\n"
1541 # FIXME: See do_read for potential simplification
1542 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1544 printf " if (${invalid_p})\n"
1545 printf " gdbarch->${function} = ${postdefault};\n"
1546 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1548 printf " if (gdbarch->${function} == ${predefault})\n"
1549 printf " gdbarch->${function} = ${postdefault};\n"
1550 elif [ -n "${postdefault}" ]
1552 printf " if (gdbarch->${function} == 0)\n"
1553 printf " gdbarch->${function} = ${postdefault};\n"
1554 elif [ -n "${invalid_p}" ]
1556 printf " if (${invalid_p})\n"
1557 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1558 elif [ -n "${predefault}" ]
1560 printf " if (gdbarch->${function} == ${predefault})\n"
1561 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1566 buf = ui_file_xstrdup (log, &length);
1567 make_cleanup (xfree, buf);
1569 internal_error (__FILE__, __LINE__,
1570 _("verify_gdbarch: the following are invalid ...%s"),
1572 do_cleanups (cleanups);
1576 # dump the structure
1580 /* Print out the details of the current architecture. */
1583 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1585 const char *gdb_nm_file = "<not-defined>";
1587 #if defined (GDB_NM_FILE)
1588 gdb_nm_file = GDB_NM_FILE;
1590 fprintf_unfiltered (file,
1591 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1594 function_list |
sort -t: -k 3 |
while do_read
1596 # First the predicate
1597 if class_is_predicate_p
1599 printf " fprintf_unfiltered (file,\n"
1600 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1601 printf " gdbarch_${function}_p (gdbarch));\n"
1603 # Print the corresponding value.
1604 if class_is_function_p
1606 printf " fprintf_unfiltered (file,\n"
1607 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1608 printf " host_address_to_string (gdbarch->${function}));\n"
1611 case "${print}:${returntype}" in
1614 print
="core_addr_to_string_nz (gdbarch->${function})"
1618 print
="plongest (gdbarch->${function})"
1624 printf " fprintf_unfiltered (file,\n"
1625 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1626 printf " ${print});\n"
1630 if (gdbarch->dump_tdep != NULL)
1631 gdbarch->dump_tdep (gdbarch, file);
1639 struct gdbarch_tdep *
1640 gdbarch_tdep (struct gdbarch *gdbarch)
1642 if (gdbarch_debug >= 2)
1643 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1644 return gdbarch->tdep;
1648 function_list |
while do_read
1650 if class_is_predicate_p
1654 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1656 printf " gdb_assert (gdbarch != NULL);\n"
1657 printf " return ${predicate};\n"
1660 if class_is_function_p
1663 printf "${returntype}\n"
1664 if [ "x${formal}" = "xvoid" ]
1666 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1668 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1671 printf " gdb_assert (gdbarch != NULL);\n"
1672 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1673 if class_is_predicate_p
&& test -n "${predefault}"
1675 # Allow a call to a function with a predicate.
1676 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1678 printf " if (gdbarch_debug >= 2)\n"
1679 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1680 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1682 if class_is_multiarch_p
1689 if class_is_multiarch_p
1691 params
="gdbarch, ${actual}"
1696 if [ "x${returntype}" = "xvoid" ]
1698 printf " gdbarch->${function} (${params});\n"
1700 printf " return gdbarch->${function} (${params});\n"
1705 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1706 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1708 printf " gdbarch->${function} = ${function};\n"
1710 elif class_is_variable_p
1713 printf "${returntype}\n"
1714 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1716 printf " gdb_assert (gdbarch != NULL);\n"
1717 if [ "x${invalid_p}" = "x0" ]
1719 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1720 elif [ -n "${invalid_p}" ]
1722 printf " /* Check variable is valid. */\n"
1723 printf " gdb_assert (!(${invalid_p}));\n"
1724 elif [ -n "${predefault}" ]
1726 printf " /* Check variable changed from pre-default. */\n"
1727 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1729 printf " if (gdbarch_debug >= 2)\n"
1730 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1731 printf " return gdbarch->${function};\n"
1735 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1736 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1738 printf " gdbarch->${function} = ${function};\n"
1740 elif class_is_info_p
1743 printf "${returntype}\n"
1744 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1746 printf " gdb_assert (gdbarch != NULL);\n"
1747 printf " if (gdbarch_debug >= 2)\n"
1748 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1749 printf " return gdbarch->${function};\n"
1754 # All the trailing guff
1758 /* Keep a registry of per-architecture data-pointers required by GDB
1765 gdbarch_data_pre_init_ftype *pre_init;
1766 gdbarch_data_post_init_ftype *post_init;
1769 struct gdbarch_data_registration
1771 struct gdbarch_data *data;
1772 struct gdbarch_data_registration *next;
1775 struct gdbarch_data_registry
1778 struct gdbarch_data_registration *registrations;
1781 struct gdbarch_data_registry gdbarch_data_registry =
1786 static struct gdbarch_data *
1787 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1788 gdbarch_data_post_init_ftype *post_init)
1790 struct gdbarch_data_registration **curr;
1792 /* Append the new registration. */
1793 for (curr = &gdbarch_data_registry.registrations;
1795 curr = &(*curr)->next);
1796 (*curr) = XMALLOC (struct gdbarch_data_registration);
1797 (*curr)->next = NULL;
1798 (*curr)->data = XMALLOC (struct gdbarch_data);
1799 (*curr)->data->index = gdbarch_data_registry.nr++;
1800 (*curr)->data->pre_init = pre_init;
1801 (*curr)->data->post_init = post_init;
1802 (*curr)->data->init_p = 1;
1803 return (*curr)->data;
1806 struct gdbarch_data *
1807 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1809 return gdbarch_data_register (pre_init, NULL);
1812 struct gdbarch_data *
1813 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1815 return gdbarch_data_register (NULL, post_init);
1818 /* Create/delete the gdbarch data vector. */
1821 alloc_gdbarch_data (struct gdbarch *gdbarch)
1823 gdb_assert (gdbarch->data == NULL);
1824 gdbarch->nr_data = gdbarch_data_registry.nr;
1825 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1828 /* Initialize the current value of the specified per-architecture
1832 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1833 struct gdbarch_data *data,
1836 gdb_assert (data->index < gdbarch->nr_data);
1837 gdb_assert (gdbarch->data[data->index] == NULL);
1838 gdb_assert (data->pre_init == NULL);
1839 gdbarch->data[data->index] = pointer;
1842 /* Return the current value of the specified per-architecture
1846 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1848 gdb_assert (data->index < gdbarch->nr_data);
1849 if (gdbarch->data[data->index] == NULL)
1851 /* The data-pointer isn't initialized, call init() to get a
1853 if (data->pre_init != NULL)
1854 /* Mid architecture creation: pass just the obstack, and not
1855 the entire architecture, as that way it isn't possible for
1856 pre-init code to refer to undefined architecture
1858 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1859 else if (gdbarch->initialized_p
1860 && data->post_init != NULL)
1861 /* Post architecture creation: pass the entire architecture
1862 (as all fields are valid), but be careful to also detect
1863 recursive references. */
1865 gdb_assert (data->init_p);
1867 gdbarch->data[data->index] = data->post_init (gdbarch);
1871 /* The architecture initialization hasn't completed - punt -
1872 hope that the caller knows what they are doing. Once
1873 deprecated_set_gdbarch_data has been initialized, this can be
1874 changed to an internal error. */
1876 gdb_assert (gdbarch->data[data->index] != NULL);
1878 return gdbarch->data[data->index];
1882 /* Keep a registry of the architectures known by GDB. */
1884 struct gdbarch_registration
1886 enum bfd_architecture bfd_architecture;
1887 gdbarch_init_ftype *init;
1888 gdbarch_dump_tdep_ftype *dump_tdep;
1889 struct gdbarch_list *arches;
1890 struct gdbarch_registration *next;
1893 static struct gdbarch_registration *gdbarch_registry = NULL;
1896 append_name (const char ***buf, int *nr, const char *name)
1898 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1904 gdbarch_printable_names (void)
1906 /* Accumulate a list of names based on the registed list of
1909 const char **arches = NULL;
1910 struct gdbarch_registration *rego;
1912 for (rego = gdbarch_registry;
1916 const struct bfd_arch_info *ap;
1917 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1919 internal_error (__FILE__, __LINE__,
1920 _("gdbarch_architecture_names: multi-arch unknown"));
1923 append_name (&arches, &nr_arches, ap->printable_name);
1928 append_name (&arches, &nr_arches, NULL);
1934 gdbarch_register (enum bfd_architecture bfd_architecture,
1935 gdbarch_init_ftype *init,
1936 gdbarch_dump_tdep_ftype *dump_tdep)
1938 struct gdbarch_registration **curr;
1939 const struct bfd_arch_info *bfd_arch_info;
1941 /* Check that BFD recognizes this architecture */
1942 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1943 if (bfd_arch_info == NULL)
1945 internal_error (__FILE__, __LINE__,
1946 _("gdbarch: Attempt to register "
1947 "unknown architecture (%d)"),
1950 /* Check that we haven't seen this architecture before. */
1951 for (curr = &gdbarch_registry;
1953 curr = &(*curr)->next)
1955 if (bfd_architecture == (*curr)->bfd_architecture)
1956 internal_error (__FILE__, __LINE__,
1957 _("gdbarch: Duplicate registration "
1958 "of architecture (%s)"),
1959 bfd_arch_info->printable_name);
1963 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1964 bfd_arch_info->printable_name,
1965 host_address_to_string (init));
1967 (*curr) = XMALLOC (struct gdbarch_registration);
1968 (*curr)->bfd_architecture = bfd_architecture;
1969 (*curr)->init = init;
1970 (*curr)->dump_tdep = dump_tdep;
1971 (*curr)->arches = NULL;
1972 (*curr)->next = NULL;
1976 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1977 gdbarch_init_ftype *init)
1979 gdbarch_register (bfd_architecture, init, NULL);
1983 /* Look for an architecture using gdbarch_info. */
1985 struct gdbarch_list *
1986 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1987 const struct gdbarch_info *info)
1989 for (; arches != NULL; arches = arches->next)
1991 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1993 if (info->byte_order != arches->gdbarch->byte_order)
1995 if (info->osabi != arches->gdbarch->osabi)
1997 if (info->target_desc != arches->gdbarch->target_desc)
2005 /* Find an architecture that matches the specified INFO. Create a new
2006 architecture if needed. Return that new architecture. */
2009 gdbarch_find_by_info (struct gdbarch_info info)
2011 struct gdbarch *new_gdbarch;
2012 struct gdbarch_registration *rego;
2014 /* Fill in missing parts of the INFO struct using a number of
2015 sources: "set ..."; INFOabfd supplied; and the global
2017 gdbarch_info_fill (&info);
2019 /* Must have found some sort of architecture. */
2020 gdb_assert (info.bfd_arch_info != NULL);
2024 fprintf_unfiltered (gdb_stdlog,
2025 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2026 (info.bfd_arch_info != NULL
2027 ? info.bfd_arch_info->printable_name
2029 fprintf_unfiltered (gdb_stdlog,
2030 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2032 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2033 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2035 fprintf_unfiltered (gdb_stdlog,
2036 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2037 info.osabi, gdbarch_osabi_name (info.osabi));
2038 fprintf_unfiltered (gdb_stdlog,
2039 "gdbarch_find_by_info: info.abfd %s\n",
2040 host_address_to_string (info.abfd));
2041 fprintf_unfiltered (gdb_stdlog,
2042 "gdbarch_find_by_info: info.tdep_info %s\n",
2043 host_address_to_string (info.tdep_info));
2046 /* Find the tdep code that knows about this architecture. */
2047 for (rego = gdbarch_registry;
2050 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2055 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2056 "No matching architecture\n");
2060 /* Ask the tdep code for an architecture that matches "info". */
2061 new_gdbarch = rego->init (info, rego->arches);
2063 /* Did the tdep code like it? No. Reject the change and revert to
2064 the old architecture. */
2065 if (new_gdbarch == NULL)
2068 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2069 "Target rejected architecture\n");
2073 /* Is this a pre-existing architecture (as determined by already
2074 being initialized)? Move it to the front of the architecture
2075 list (keeping the list sorted Most Recently Used). */
2076 if (new_gdbarch->initialized_p)
2078 struct gdbarch_list **list;
2079 struct gdbarch_list *this;
2081 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2082 "Previous architecture %s (%s) selected\n",
2083 host_address_to_string (new_gdbarch),
2084 new_gdbarch->bfd_arch_info->printable_name);
2085 /* Find the existing arch in the list. */
2086 for (list = ®o->arches;
2087 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2088 list = &(*list)->next);
2089 /* It had better be in the list of architectures. */
2090 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2093 (*list) = this->next;
2094 /* Insert THIS at the front. */
2095 this->next = rego->arches;
2096 rego->arches = this;
2101 /* It's a new architecture. */
2103 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2104 "New architecture %s (%s) selected\n",
2105 host_address_to_string (new_gdbarch),
2106 new_gdbarch->bfd_arch_info->printable_name);
2108 /* Insert the new architecture into the front of the architecture
2109 list (keep the list sorted Most Recently Used). */
2111 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2112 this->next = rego->arches;
2113 this->gdbarch = new_gdbarch;
2114 rego->arches = this;
2117 /* Check that the newly installed architecture is valid. Plug in
2118 any post init values. */
2119 new_gdbarch->dump_tdep = rego->dump_tdep;
2120 verify_gdbarch (new_gdbarch);
2121 new_gdbarch->initialized_p = 1;
2124 gdbarch_dump (new_gdbarch, gdb_stdlog);
2129 /* Make the specified architecture current. */
2132 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2134 gdb_assert (new_gdbarch != NULL);
2135 gdb_assert (new_gdbarch->initialized_p);
2136 target_gdbarch = new_gdbarch;
2137 observer_notify_architecture_changed (new_gdbarch);
2138 registers_changed ();
2141 extern void _initialize_gdbarch (void);
2144 _initialize_gdbarch (void)
2146 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2147 Set architecture debugging."), _("\\
2148 Show architecture debugging."), _("\\
2149 When non-zero, architecture debugging is enabled."),
2152 &setdebuglist, &showdebuglist);
2158 #../move-if-change new-gdbarch.c gdbarch.c
2159 compare_new gdbarch.c