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 # When creating core dumps, some systems encode the PID in addition
616 # to the LWP id in core file register section names. In those cases, the
617 # "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID]. This setting
618 # is set to true for such architectures; false if "XXX" represents an LWP
619 # or thread id with no special encoding.
620 v:int:core_reg_section_encodes_pid:::0:0::0
622 # Supported register notes in a core file.
623 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
625 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
626 # core file into buffer READBUF with length LEN.
627 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
629 # How the core target converts a PTID from a core file to a string.
630 M:char *:core_pid_to_str:ptid_t ptid:ptid
632 # BFD target to use when generating a core file.
633 V:const char *:gcore_bfd_target:::0:0:::gdbarch->gcore_bfd_target
635 # If the elements of C++ vtables are in-place function descriptors rather
636 # than normal function pointers (which may point to code or a descriptor),
638 v:int:vtable_function_descriptors:::0:0::0
640 # Set if the least significant bit of the delta is used instead of the least
641 # significant bit of the pfn for pointers to virtual member functions.
642 v:int:vbit_in_delta:::0:0::0
644 # Advance PC to next instruction in order to skip a permanent breakpoint.
645 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
647 # The maximum length of an instruction on this architecture.
648 V:ULONGEST:max_insn_length:::0:0
650 # Copy the instruction at FROM to TO, and make any adjustments
651 # necessary to single-step it at that address.
653 # REGS holds the state the thread's registers will have before
654 # executing the copied instruction; the PC in REGS will refer to FROM,
655 # not the copy at TO. The caller should update it to point at TO later.
657 # Return a pointer to data of the architecture's choice to be passed
658 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
659 # the instruction's effects have been completely simulated, with the
660 # resulting state written back to REGS.
662 # For a general explanation of displaced stepping and how GDB uses it,
663 # see the comments in infrun.c.
665 # The TO area is only guaranteed to have space for
666 # gdbarch_max_insn_length (arch) bytes, so this function must not
667 # write more bytes than that to that area.
669 # If you do not provide this function, GDB assumes that the
670 # architecture does not support displaced stepping.
672 # If your architecture doesn't need to adjust instructions before
673 # single-stepping them, consider using simple_displaced_step_copy_insn
675 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
677 # Return true if GDB should use hardware single-stepping to execute
678 # the displaced instruction identified by CLOSURE. If false,
679 # GDB will simply restart execution at the displaced instruction
680 # location, and it is up to the target to ensure GDB will receive
681 # control again (e.g. by placing a software breakpoint instruction
682 # into the displaced instruction buffer).
684 # The default implementation returns false on all targets that
685 # provide a gdbarch_software_single_step routine, and true otherwise.
686 m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
688 # Fix up the state resulting from successfully single-stepping a
689 # displaced instruction, to give the result we would have gotten from
690 # stepping the instruction in its original location.
692 # REGS is the register state resulting from single-stepping the
693 # displaced instruction.
695 # CLOSURE is the result from the matching call to
696 # gdbarch_displaced_step_copy_insn.
698 # If you provide gdbarch_displaced_step_copy_insn.but not this
699 # function, then GDB assumes that no fixup is needed after
700 # single-stepping the instruction.
702 # For a general explanation of displaced stepping and how GDB uses it,
703 # see the comments in infrun.c.
704 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
706 # Free a closure returned by gdbarch_displaced_step_copy_insn.
708 # If you provide gdbarch_displaced_step_copy_insn, you must provide
709 # this function as well.
711 # If your architecture uses closures that don't need to be freed, then
712 # you can use simple_displaced_step_free_closure here.
714 # For a general explanation of displaced stepping and how GDB uses it,
715 # see the comments in infrun.c.
716 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
718 # Return the address of an appropriate place to put displaced
719 # instructions while we step over them. There need only be one such
720 # place, since we're only stepping one thread over a breakpoint at a
723 # For a general explanation of displaced stepping and how GDB uses it,
724 # see the comments in infrun.c.
725 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
727 # Relocate an instruction to execute at a different address. OLDLOC
728 # is the address in the inferior memory where the instruction to
729 # relocate is currently at. On input, TO points to the destination
730 # where we want the instruction to be copied (and possibly adjusted)
731 # to. On output, it points to one past the end of the resulting
732 # instruction(s). The effect of executing the instruction at TO shall
733 # be the same as if executing it at FROM. For example, call
734 # instructions that implicitly push the return address on the stack
735 # should be adjusted to return to the instruction after OLDLOC;
736 # relative branches, and other PC-relative instructions need the
737 # offset adjusted; etc.
738 M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
740 # Refresh overlay mapped state for section OSECT.
741 F:void:overlay_update:struct obj_section *osect:osect
743 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
745 # Handle special encoding of static variables in stabs debug info.
746 F:char *:static_transform_name:char *name:name
747 # Set if the address in N_SO or N_FUN stabs may be zero.
748 v:int:sofun_address_maybe_missing:::0:0::0
750 # Parse the instruction at ADDR storing in the record execution log
751 # the registers REGCACHE and memory ranges that will be affected when
752 # the instruction executes, along with their current values.
753 # Return -1 if something goes wrong, 0 otherwise.
754 M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
756 # Save process state after a signal.
757 # Return -1 if something goes wrong, 0 otherwise.
758 M:int:process_record_signal:struct regcache *regcache, enum target_signal signal:regcache, signal
760 # Signal translation: translate inferior's signal (host's) number into
761 # GDB's representation.
762 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
763 # Signal translation: translate GDB's signal number into inferior's host
765 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
767 # Extra signal info inspection.
769 # Return a type suitable to inspect extra signal information.
770 M:struct type *:get_siginfo_type:void:
772 # Record architecture-specific information from the symbol table.
773 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
775 # Function for the 'catch syscall' feature.
777 # Get architecture-specific system calls information from registers.
778 M:LONGEST:get_syscall_number:ptid_t ptid:ptid
780 # True if the list of shared libraries is one and only for all
781 # processes, as opposed to a list of shared libraries per inferior.
782 # This usually means that all processes, although may or may not share
783 # an address space, will see the same set of symbols at the same
785 v:int:has_global_solist:::0:0::0
787 # On some targets, even though each inferior has its own private
788 # address space, the debug interface takes care of making breakpoints
789 # visible to all address spaces automatically. For such cases,
790 # this property should be set to true.
791 v:int:has_global_breakpoints:::0:0::0
793 # True if inferiors share an address space (e.g., uClinux).
794 m:int:has_shared_address_space:void:::default_has_shared_address_space::0
796 # True if a fast tracepoint can be set at an address.
797 m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
799 # Return the "auto" target charset.
800 f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
801 # Return the "auto" target wide charset.
802 f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
804 # If non-empty, this is a file extension that will be opened in place
805 # of the file extension reported by the shared library list.
807 # This is most useful for toolchains that use a post-linker tool,
808 # where the names of the files run on the target differ in extension
809 # compared to the names of the files GDB should load for debug info.
810 v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
812 # If true, the target OS has DOS-based file system semantics. That
813 # is, absolute paths include a drive name, and the backslash is
814 # considered a directory separator.
815 v:int:has_dos_based_file_system:::0:0::0
822 exec > new-gdbarch.log
823 function_list |
while do_read
826 ${class} ${returntype} ${function} ($formal)
830 eval echo \"\ \ \ \
${r}=\
${${r}}\"
832 if class_is_predicate_p
&& fallback_default_p
834 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
838 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
840 echo "Error: postdefault is useless when invalid_p=0" 1>&2
844 if class_is_multiarch_p
846 if class_is_predicate_p
; then :
847 elif test "x${predefault}" = "x"
849 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
858 compare_new gdbarch.log
864 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
866 /* Dynamic architecture support for GDB, the GNU debugger.
868 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
869 2007, 2008, 2009 Free Software Foundation, Inc.
871 This file is part of GDB.
873 This program is free software; you can redistribute it and/or modify
874 it under the terms of the GNU General Public License as published by
875 the Free Software Foundation; either version 3 of the License, or
876 (at your option) any later version.
878 This program is distributed in the hope that it will be useful,
879 but WITHOUT ANY WARRANTY; without even the implied warranty of
880 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
881 GNU General Public License for more details.
883 You should have received a copy of the GNU General Public License
884 along with this program. If not, see <http://www.gnu.org/licenses/>. */
886 /* This file was created with the aid of \`\`gdbarch.sh''.
888 The Bourne shell script \`\`gdbarch.sh'' creates the files
889 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
890 against the existing \`\`gdbarch.[hc]''. Any differences found
893 If editing this file, please also run gdbarch.sh and merge any
894 changes into that script. Conversely, when making sweeping changes
895 to this file, modifying gdbarch.sh and using its output may prove
917 struct minimal_symbol;
921 struct disassemble_info;
924 struct bp_target_info;
926 struct displaced_step_closure;
927 struct core_regset_section;
930 /* The architecture associated with the connection to the target.
932 The architecture vector provides some information that is really
933 a property of the target: The layout of certain packets, for instance;
934 or the solib_ops vector. Etc. To differentiate architecture accesses
935 to per-target properties from per-thread/per-frame/per-objfile properties,
936 accesses to per-target properties should be made through target_gdbarch.
938 Eventually, when support for multiple targets is implemented in
939 GDB, this global should be made target-specific. */
940 extern struct gdbarch *target_gdbarch;
946 printf "/* The following are pre-initialized by GDBARCH. */\n"
947 function_list |
while do_read
952 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
953 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
960 printf "/* The following are initialized by the target dependent code. */\n"
961 function_list |
while do_read
963 if [ -n "${comment}" ]
965 echo "${comment}" |
sed \
971 if class_is_predicate_p
974 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
976 if class_is_variable_p
979 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
980 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
982 if class_is_function_p
985 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
987 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
988 elif class_is_multiarch_p
990 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
992 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
994 if [ "x${formal}" = "xvoid" ]
996 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
998 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
1000 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
1007 /* Definition for an unknown syscall, used basically in error-cases. */
1008 #define UNKNOWN_SYSCALL (-1)
1010 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
1013 /* Mechanism for co-ordinating the selection of a specific
1016 GDB targets (*-tdep.c) can register an interest in a specific
1017 architecture. Other GDB components can register a need to maintain
1018 per-architecture data.
1020 The mechanisms below ensures that there is only a loose connection
1021 between the set-architecture command and the various GDB
1022 components. Each component can independently register their need
1023 to maintain architecture specific data with gdbarch.
1027 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
1030 The more traditional mega-struct containing architecture specific
1031 data for all the various GDB components was also considered. Since
1032 GDB is built from a variable number of (fairly independent)
1033 components it was determined that the global aproach was not
1037 /* Register a new architectural family with GDB.
1039 Register support for the specified ARCHITECTURE with GDB. When
1040 gdbarch determines that the specified architecture has been
1041 selected, the corresponding INIT function is called.
1045 The INIT function takes two parameters: INFO which contains the
1046 information available to gdbarch about the (possibly new)
1047 architecture; ARCHES which is a list of the previously created
1048 \`\`struct gdbarch'' for this architecture.
1050 The INFO parameter is, as far as possible, be pre-initialized with
1051 information obtained from INFO.ABFD or the global defaults.
1053 The ARCHES parameter is a linked list (sorted most recently used)
1054 of all the previously created architures for this architecture
1055 family. The (possibly NULL) ARCHES->gdbarch can used to access
1056 values from the previously selected architecture for this
1057 architecture family.
1059 The INIT function shall return any of: NULL - indicating that it
1060 doesn't recognize the selected architecture; an existing \`\`struct
1061 gdbarch'' from the ARCHES list - indicating that the new
1062 architecture is just a synonym for an earlier architecture (see
1063 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
1064 - that describes the selected architecture (see gdbarch_alloc()).
1066 The DUMP_TDEP function shall print out all target specific values.
1067 Care should be taken to ensure that the function works in both the
1068 multi-arch and non- multi-arch cases. */
1072 struct gdbarch *gdbarch;
1073 struct gdbarch_list *next;
1078 /* Use default: NULL (ZERO). */
1079 const struct bfd_arch_info *bfd_arch_info;
1081 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
1084 int byte_order_for_code;
1086 /* Use default: NULL (ZERO). */
1089 /* Use default: NULL (ZERO). */
1090 struct gdbarch_tdep_info *tdep_info;
1092 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
1093 enum gdb_osabi osabi;
1095 /* Use default: NULL (ZERO). */
1096 const struct target_desc *target_desc;
1099 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1100 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1102 /* DEPRECATED - use gdbarch_register() */
1103 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1105 extern void gdbarch_register (enum bfd_architecture architecture,
1106 gdbarch_init_ftype *,
1107 gdbarch_dump_tdep_ftype *);
1110 /* Return a freshly allocated, NULL terminated, array of the valid
1111 architecture names. Since architectures are registered during the
1112 _initialize phase this function only returns useful information
1113 once initialization has been completed. */
1115 extern const char **gdbarch_printable_names (void);
1118 /* Helper function. Search the list of ARCHES for a GDBARCH that
1119 matches the information provided by INFO. */
1121 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1124 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1125 basic initialization using values obtained from the INFO and TDEP
1126 parameters. set_gdbarch_*() functions are called to complete the
1127 initialization of the object. */
1129 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1132 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1133 It is assumed that the caller freeds the \`\`struct
1136 extern void gdbarch_free (struct gdbarch *);
1139 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1140 obstack. The memory is freed when the corresponding architecture
1143 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1144 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1145 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1148 /* Helper function. Force an update of the current architecture.
1150 The actual architecture selected is determined by INFO, \`\`(gdb) set
1151 architecture'' et.al., the existing architecture and BFD's default
1152 architecture. INFO should be initialized to zero and then selected
1153 fields should be updated.
1155 Returns non-zero if the update succeeds */
1157 extern int gdbarch_update_p (struct gdbarch_info info);
1160 /* Helper function. Find an architecture matching info.
1162 INFO should be initialized using gdbarch_info_init, relevant fields
1163 set, and then finished using gdbarch_info_fill.
1165 Returns the corresponding architecture, or NULL if no matching
1166 architecture was found. */
1168 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1171 /* Helper function. Set the global "target_gdbarch" to "gdbarch".
1173 FIXME: kettenis/20031124: Of the functions that follow, only
1174 gdbarch_from_bfd is supposed to survive. The others will
1175 dissappear since in the future GDB will (hopefully) be truly
1176 multi-arch. However, for now we're still stuck with the concept of
1177 a single active architecture. */
1179 extern void deprecated_target_gdbarch_select_hack (struct gdbarch *gdbarch);
1182 /* Register per-architecture data-pointer.
1184 Reserve space for a per-architecture data-pointer. An identifier
1185 for the reserved data-pointer is returned. That identifer should
1186 be saved in a local static variable.
1188 Memory for the per-architecture data shall be allocated using
1189 gdbarch_obstack_zalloc. That memory will be deleted when the
1190 corresponding architecture object is deleted.
1192 When a previously created architecture is re-selected, the
1193 per-architecture data-pointer for that previous architecture is
1194 restored. INIT() is not re-called.
1196 Multiple registrarants for any architecture are allowed (and
1197 strongly encouraged). */
1199 struct gdbarch_data;
1201 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1202 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1203 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1204 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1205 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1206 struct gdbarch_data *data,
1209 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1212 /* Set the dynamic target-system-dependent parameters (architecture,
1213 byte-order, ...) using information found in the BFD */
1215 extern void set_gdbarch_from_file (bfd *);
1218 /* Initialize the current architecture to the "first" one we find on
1221 extern void initialize_current_architecture (void);
1223 /* gdbarch trace variable */
1224 extern int gdbarch_debug;
1226 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1231 #../move-if-change new-gdbarch.h gdbarch.h
1232 compare_new gdbarch.h
1239 exec > new-gdbarch.c
1244 #include "arch-utils.h"
1247 #include "inferior.h"
1250 #include "floatformat.h"
1252 #include "gdb_assert.h"
1253 #include "gdb_string.h"
1254 #include "reggroups.h"
1256 #include "gdb_obstack.h"
1257 #include "observer.h"
1258 #include "regcache.h"
1260 /* Static function declarations */
1262 static void alloc_gdbarch_data (struct gdbarch *);
1264 /* Non-zero if we want to trace architecture code. */
1266 #ifndef GDBARCH_DEBUG
1267 #define GDBARCH_DEBUG 0
1269 int gdbarch_debug = GDBARCH_DEBUG;
1271 show_gdbarch_debug (struct ui_file *file, int from_tty,
1272 struct cmd_list_element *c, const char *value)
1274 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1278 pformat (const struct floatformat **format)
1283 /* Just print out one of them - this is only for diagnostics. */
1284 return format[0]->name;
1288 pstring (const char *string)
1297 # gdbarch open the gdbarch object
1299 printf "/* Maintain the struct gdbarch object */\n"
1301 printf "struct gdbarch\n"
1303 printf " /* Has this architecture been fully initialized? */\n"
1304 printf " int initialized_p;\n"
1306 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1307 printf " struct obstack *obstack;\n"
1309 printf " /* basic architectural information */\n"
1310 function_list |
while do_read
1314 printf " ${returntype} ${function};\n"
1318 printf " /* target specific vector. */\n"
1319 printf " struct gdbarch_tdep *tdep;\n"
1320 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1322 printf " /* per-architecture data-pointers */\n"
1323 printf " unsigned nr_data;\n"
1324 printf " void **data;\n"
1326 printf " /* per-architecture swap-regions */\n"
1327 printf " struct gdbarch_swap *swap;\n"
1330 /* Multi-arch values.
1332 When extending this structure you must:
1334 Add the field below.
1336 Declare set/get functions and define the corresponding
1339 gdbarch_alloc(): If zero/NULL is not a suitable default,
1340 initialize the new field.
1342 verify_gdbarch(): Confirm that the target updated the field
1345 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1348 \`\`startup_gdbarch()'': Append an initial value to the static
1349 variable (base values on the host's c-type system).
1351 get_gdbarch(): Implement the set/get functions (probably using
1352 the macro's as shortcuts).
1357 function_list |
while do_read
1359 if class_is_variable_p
1361 printf " ${returntype} ${function};\n"
1362 elif class_is_function_p
1364 printf " gdbarch_${function}_ftype *${function};\n"
1369 # A pre-initialized vector
1373 /* The default architecture uses host values (for want of a better
1377 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1379 printf "struct gdbarch startup_gdbarch =\n"
1381 printf " 1, /* Always initialized. */\n"
1382 printf " NULL, /* The obstack. */\n"
1383 printf " /* basic architecture information */\n"
1384 function_list |
while do_read
1388 printf " ${staticdefault}, /* ${function} */\n"
1392 /* target specific vector and its dump routine */
1394 /*per-architecture data-pointers and swap regions */
1396 /* Multi-arch values */
1398 function_list |
while do_read
1400 if class_is_function_p || class_is_variable_p
1402 printf " ${staticdefault}, /* ${function} */\n"
1406 /* startup_gdbarch() */
1409 struct gdbarch *target_gdbarch = &startup_gdbarch;
1412 # Create a new gdbarch struct
1415 /* Create a new \`\`struct gdbarch'' based on information provided by
1416 \`\`struct gdbarch_info''. */
1421 gdbarch_alloc (const struct gdbarch_info *info,
1422 struct gdbarch_tdep *tdep)
1424 struct gdbarch *gdbarch;
1426 /* Create an obstack for allocating all the per-architecture memory,
1427 then use that to allocate the architecture vector. */
1428 struct obstack *obstack = XMALLOC (struct obstack);
1429 obstack_init (obstack);
1430 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1431 memset (gdbarch, 0, sizeof (*gdbarch));
1432 gdbarch->obstack = obstack;
1434 alloc_gdbarch_data (gdbarch);
1436 gdbarch->tdep = tdep;
1439 function_list |
while do_read
1443 printf " gdbarch->${function} = info->${function};\n"
1447 printf " /* Force the explicit initialization of these. */\n"
1448 function_list |
while do_read
1450 if class_is_function_p || class_is_variable_p
1452 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1454 printf " gdbarch->${function} = ${predefault};\n"
1459 /* gdbarch_alloc() */
1465 # Free a gdbarch struct.
1469 /* Allocate extra space using the per-architecture obstack. */
1472 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1474 void *data = obstack_alloc (arch->obstack, size);
1476 memset (data, 0, size);
1481 /* Free a gdbarch struct. This should never happen in normal
1482 operation --- once you've created a gdbarch, you keep it around.
1483 However, if an architecture's init function encounters an error
1484 building the structure, it may need to clean up a partially
1485 constructed gdbarch. */
1488 gdbarch_free (struct gdbarch *arch)
1490 struct obstack *obstack;
1492 gdb_assert (arch != NULL);
1493 gdb_assert (!arch->initialized_p);
1494 obstack = arch->obstack;
1495 obstack_free (obstack, 0); /* Includes the ARCH. */
1500 # verify a new architecture
1504 /* Ensure that all values in a GDBARCH are reasonable. */
1507 verify_gdbarch (struct gdbarch *gdbarch)
1509 struct ui_file *log;
1510 struct cleanup *cleanups;
1514 log = mem_fileopen ();
1515 cleanups = make_cleanup_ui_file_delete (log);
1517 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1518 fprintf_unfiltered (log, "\n\tbyte-order");
1519 if (gdbarch->bfd_arch_info == NULL)
1520 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1521 /* Check those that need to be defined for the given multi-arch level. */
1523 function_list |
while do_read
1525 if class_is_function_p || class_is_variable_p
1527 if [ "x${invalid_p}" = "x0" ]
1529 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1530 elif class_is_predicate_p
1532 printf " /* Skip verify of ${function}, has predicate */\n"
1533 # FIXME: See do_read for potential simplification
1534 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1536 printf " if (${invalid_p})\n"
1537 printf " gdbarch->${function} = ${postdefault};\n"
1538 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1540 printf " if (gdbarch->${function} == ${predefault})\n"
1541 printf " gdbarch->${function} = ${postdefault};\n"
1542 elif [ -n "${postdefault}" ]
1544 printf " if (gdbarch->${function} == 0)\n"
1545 printf " gdbarch->${function} = ${postdefault};\n"
1546 elif [ -n "${invalid_p}" ]
1548 printf " if (${invalid_p})\n"
1549 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1550 elif [ -n "${predefault}" ]
1552 printf " if (gdbarch->${function} == ${predefault})\n"
1553 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1558 buf = ui_file_xstrdup (log, &length);
1559 make_cleanup (xfree, buf);
1561 internal_error (__FILE__, __LINE__,
1562 _("verify_gdbarch: the following are invalid ...%s"),
1564 do_cleanups (cleanups);
1568 # dump the structure
1572 /* Print out the details of the current architecture. */
1575 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1577 const char *gdb_nm_file = "<not-defined>";
1579 #if defined (GDB_NM_FILE)
1580 gdb_nm_file = GDB_NM_FILE;
1582 fprintf_unfiltered (file,
1583 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1586 function_list |
sort -t: -k 3 |
while do_read
1588 # First the predicate
1589 if class_is_predicate_p
1591 printf " fprintf_unfiltered (file,\n"
1592 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1593 printf " gdbarch_${function}_p (gdbarch));\n"
1595 # Print the corresponding value.
1596 if class_is_function_p
1598 printf " fprintf_unfiltered (file,\n"
1599 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1600 printf " host_address_to_string (gdbarch->${function}));\n"
1603 case "${print}:${returntype}" in
1606 print
="core_addr_to_string_nz (gdbarch->${function})"
1610 print
="plongest (gdbarch->${function})"
1616 printf " fprintf_unfiltered (file,\n"
1617 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1618 printf " ${print});\n"
1622 if (gdbarch->dump_tdep != NULL)
1623 gdbarch->dump_tdep (gdbarch, file);
1631 struct gdbarch_tdep *
1632 gdbarch_tdep (struct gdbarch *gdbarch)
1634 if (gdbarch_debug >= 2)
1635 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1636 return gdbarch->tdep;
1640 function_list |
while do_read
1642 if class_is_predicate_p
1646 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1648 printf " gdb_assert (gdbarch != NULL);\n"
1649 printf " return ${predicate};\n"
1652 if class_is_function_p
1655 printf "${returntype}\n"
1656 if [ "x${formal}" = "xvoid" ]
1658 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1660 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1663 printf " gdb_assert (gdbarch != NULL);\n"
1664 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1665 if class_is_predicate_p
&& test -n "${predefault}"
1667 # Allow a call to a function with a predicate.
1668 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1670 printf " if (gdbarch_debug >= 2)\n"
1671 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1672 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1674 if class_is_multiarch_p
1681 if class_is_multiarch_p
1683 params
="gdbarch, ${actual}"
1688 if [ "x${returntype}" = "xvoid" ]
1690 printf " gdbarch->${function} (${params});\n"
1692 printf " return gdbarch->${function} (${params});\n"
1697 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1698 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1700 printf " gdbarch->${function} = ${function};\n"
1702 elif class_is_variable_p
1705 printf "${returntype}\n"
1706 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1708 printf " gdb_assert (gdbarch != NULL);\n"
1709 if [ "x${invalid_p}" = "x0" ]
1711 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1712 elif [ -n "${invalid_p}" ]
1714 printf " /* Check variable is valid. */\n"
1715 printf " gdb_assert (!(${invalid_p}));\n"
1716 elif [ -n "${predefault}" ]
1718 printf " /* Check variable changed from pre-default. */\n"
1719 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1721 printf " if (gdbarch_debug >= 2)\n"
1722 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1723 printf " return gdbarch->${function};\n"
1727 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1728 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1730 printf " gdbarch->${function} = ${function};\n"
1732 elif class_is_info_p
1735 printf "${returntype}\n"
1736 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1738 printf " gdb_assert (gdbarch != NULL);\n"
1739 printf " if (gdbarch_debug >= 2)\n"
1740 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1741 printf " return gdbarch->${function};\n"
1746 # All the trailing guff
1750 /* Keep a registry of per-architecture data-pointers required by GDB
1757 gdbarch_data_pre_init_ftype *pre_init;
1758 gdbarch_data_post_init_ftype *post_init;
1761 struct gdbarch_data_registration
1763 struct gdbarch_data *data;
1764 struct gdbarch_data_registration *next;
1767 struct gdbarch_data_registry
1770 struct gdbarch_data_registration *registrations;
1773 struct gdbarch_data_registry gdbarch_data_registry =
1778 static struct gdbarch_data *
1779 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1780 gdbarch_data_post_init_ftype *post_init)
1782 struct gdbarch_data_registration **curr;
1784 /* Append the new registration. */
1785 for (curr = &gdbarch_data_registry.registrations;
1787 curr = &(*curr)->next);
1788 (*curr) = XMALLOC (struct gdbarch_data_registration);
1789 (*curr)->next = NULL;
1790 (*curr)->data = XMALLOC (struct gdbarch_data);
1791 (*curr)->data->index = gdbarch_data_registry.nr++;
1792 (*curr)->data->pre_init = pre_init;
1793 (*curr)->data->post_init = post_init;
1794 (*curr)->data->init_p = 1;
1795 return (*curr)->data;
1798 struct gdbarch_data *
1799 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1801 return gdbarch_data_register (pre_init, NULL);
1804 struct gdbarch_data *
1805 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1807 return gdbarch_data_register (NULL, post_init);
1810 /* Create/delete the gdbarch data vector. */
1813 alloc_gdbarch_data (struct gdbarch *gdbarch)
1815 gdb_assert (gdbarch->data == NULL);
1816 gdbarch->nr_data = gdbarch_data_registry.nr;
1817 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1820 /* Initialize the current value of the specified per-architecture
1824 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1825 struct gdbarch_data *data,
1828 gdb_assert (data->index < gdbarch->nr_data);
1829 gdb_assert (gdbarch->data[data->index] == NULL);
1830 gdb_assert (data->pre_init == NULL);
1831 gdbarch->data[data->index] = pointer;
1834 /* Return the current value of the specified per-architecture
1838 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1840 gdb_assert (data->index < gdbarch->nr_data);
1841 if (gdbarch->data[data->index] == NULL)
1843 /* The data-pointer isn't initialized, call init() to get a
1845 if (data->pre_init != NULL)
1846 /* Mid architecture creation: pass just the obstack, and not
1847 the entire architecture, as that way it isn't possible for
1848 pre-init code to refer to undefined architecture
1850 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1851 else if (gdbarch->initialized_p
1852 && data->post_init != NULL)
1853 /* Post architecture creation: pass the entire architecture
1854 (as all fields are valid), but be careful to also detect
1855 recursive references. */
1857 gdb_assert (data->init_p);
1859 gdbarch->data[data->index] = data->post_init (gdbarch);
1863 /* The architecture initialization hasn't completed - punt -
1864 hope that the caller knows what they are doing. Once
1865 deprecated_set_gdbarch_data has been initialized, this can be
1866 changed to an internal error. */
1868 gdb_assert (gdbarch->data[data->index] != NULL);
1870 return gdbarch->data[data->index];
1874 /* Keep a registry of the architectures known by GDB. */
1876 struct gdbarch_registration
1878 enum bfd_architecture bfd_architecture;
1879 gdbarch_init_ftype *init;
1880 gdbarch_dump_tdep_ftype *dump_tdep;
1881 struct gdbarch_list *arches;
1882 struct gdbarch_registration *next;
1885 static struct gdbarch_registration *gdbarch_registry = NULL;
1888 append_name (const char ***buf, int *nr, const char *name)
1890 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1896 gdbarch_printable_names (void)
1898 /* Accumulate a list of names based on the registed list of
1901 const char **arches = NULL;
1902 struct gdbarch_registration *rego;
1904 for (rego = gdbarch_registry;
1908 const struct bfd_arch_info *ap;
1909 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1911 internal_error (__FILE__, __LINE__,
1912 _("gdbarch_architecture_names: multi-arch unknown"));
1915 append_name (&arches, &nr_arches, ap->printable_name);
1920 append_name (&arches, &nr_arches, NULL);
1926 gdbarch_register (enum bfd_architecture bfd_architecture,
1927 gdbarch_init_ftype *init,
1928 gdbarch_dump_tdep_ftype *dump_tdep)
1930 struct gdbarch_registration **curr;
1931 const struct bfd_arch_info *bfd_arch_info;
1933 /* Check that BFD recognizes this architecture */
1934 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1935 if (bfd_arch_info == NULL)
1937 internal_error (__FILE__, __LINE__,
1938 _("gdbarch: Attempt to register unknown architecture (%d)"),
1941 /* Check that we haven't seen this architecture before */
1942 for (curr = &gdbarch_registry;
1944 curr = &(*curr)->next)
1946 if (bfd_architecture == (*curr)->bfd_architecture)
1947 internal_error (__FILE__, __LINE__,
1948 _("gdbarch: Duplicate registraration of architecture (%s)"),
1949 bfd_arch_info->printable_name);
1953 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1954 bfd_arch_info->printable_name,
1955 host_address_to_string (init));
1957 (*curr) = XMALLOC (struct gdbarch_registration);
1958 (*curr)->bfd_architecture = bfd_architecture;
1959 (*curr)->init = init;
1960 (*curr)->dump_tdep = dump_tdep;
1961 (*curr)->arches = NULL;
1962 (*curr)->next = NULL;
1966 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1967 gdbarch_init_ftype *init)
1969 gdbarch_register (bfd_architecture, init, NULL);
1973 /* Look for an architecture using gdbarch_info. */
1975 struct gdbarch_list *
1976 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1977 const struct gdbarch_info *info)
1979 for (; arches != NULL; arches = arches->next)
1981 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1983 if (info->byte_order != arches->gdbarch->byte_order)
1985 if (info->osabi != arches->gdbarch->osabi)
1987 if (info->target_desc != arches->gdbarch->target_desc)
1995 /* Find an architecture that matches the specified INFO. Create a new
1996 architecture if needed. Return that new architecture. */
1999 gdbarch_find_by_info (struct gdbarch_info info)
2001 struct gdbarch *new_gdbarch;
2002 struct gdbarch_registration *rego;
2004 /* Fill in missing parts of the INFO struct using a number of
2005 sources: "set ..."; INFOabfd supplied; and the global
2007 gdbarch_info_fill (&info);
2009 /* Must have found some sort of architecture. */
2010 gdb_assert (info.bfd_arch_info != NULL);
2014 fprintf_unfiltered (gdb_stdlog,
2015 "gdbarch_find_by_info: info.bfd_arch_info %s\n",
2016 (info.bfd_arch_info != NULL
2017 ? info.bfd_arch_info->printable_name
2019 fprintf_unfiltered (gdb_stdlog,
2020 "gdbarch_find_by_info: info.byte_order %d (%s)\n",
2022 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2023 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2025 fprintf_unfiltered (gdb_stdlog,
2026 "gdbarch_find_by_info: info.osabi %d (%s)\n",
2027 info.osabi, gdbarch_osabi_name (info.osabi));
2028 fprintf_unfiltered (gdb_stdlog,
2029 "gdbarch_find_by_info: info.abfd %s\n",
2030 host_address_to_string (info.abfd));
2031 fprintf_unfiltered (gdb_stdlog,
2032 "gdbarch_find_by_info: info.tdep_info %s\n",
2033 host_address_to_string (info.tdep_info));
2036 /* Find the tdep code that knows about this architecture. */
2037 for (rego = gdbarch_registry;
2040 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2045 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2046 "No matching architecture\n");
2050 /* Ask the tdep code for an architecture that matches "info". */
2051 new_gdbarch = rego->init (info, rego->arches);
2053 /* Did the tdep code like it? No. Reject the change and revert to
2054 the old architecture. */
2055 if (new_gdbarch == NULL)
2058 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2059 "Target rejected architecture\n");
2063 /* Is this a pre-existing architecture (as determined by already
2064 being initialized)? Move it to the front of the architecture
2065 list (keeping the list sorted Most Recently Used). */
2066 if (new_gdbarch->initialized_p)
2068 struct gdbarch_list **list;
2069 struct gdbarch_list *this;
2071 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2072 "Previous architecture %s (%s) selected\n",
2073 host_address_to_string (new_gdbarch),
2074 new_gdbarch->bfd_arch_info->printable_name);
2075 /* Find the existing arch in the list. */
2076 for (list = ®o->arches;
2077 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2078 list = &(*list)->next);
2079 /* It had better be in the list of architectures. */
2080 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2083 (*list) = this->next;
2084 /* Insert THIS at the front. */
2085 this->next = rego->arches;
2086 rego->arches = this;
2091 /* It's a new architecture. */
2093 fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
2094 "New architecture %s (%s) selected\n",
2095 host_address_to_string (new_gdbarch),
2096 new_gdbarch->bfd_arch_info->printable_name);
2098 /* Insert the new architecture into the front of the architecture
2099 list (keep the list sorted Most Recently Used). */
2101 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2102 this->next = rego->arches;
2103 this->gdbarch = new_gdbarch;
2104 rego->arches = this;
2107 /* Check that the newly installed architecture is valid. Plug in
2108 any post init values. */
2109 new_gdbarch->dump_tdep = rego->dump_tdep;
2110 verify_gdbarch (new_gdbarch);
2111 new_gdbarch->initialized_p = 1;
2114 gdbarch_dump (new_gdbarch, gdb_stdlog);
2119 /* Make the specified architecture current. */
2122 deprecated_target_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2124 gdb_assert (new_gdbarch != NULL);
2125 gdb_assert (new_gdbarch->initialized_p);
2126 target_gdbarch = new_gdbarch;
2127 observer_notify_architecture_changed (new_gdbarch);
2128 registers_changed ();
2131 extern void _initialize_gdbarch (void);
2134 _initialize_gdbarch (void)
2136 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2137 Set architecture debugging."), _("\\
2138 Show architecture debugging."), _("\\
2139 When non-zero, architecture debugging is enabled."),
2142 &setdebuglist, &showdebuglist);
2148 #../move-if-change new-gdbarch.c gdbarch.c
2149 compare_new gdbarch.c