3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
6 # 2008, 2009 Free Software Foundation, Inc.
8 # This file is part of GDB.
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 3 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 # Make certain that the script is not running in an internationalized
26 LC_ALL=c ; export LC_ALL
34 echo "${file} missing? cp new-${file} ${file}" 1>&2
35 elif diff -u ${file} new-${file}
37 echo "${file} unchanged" 1>&2
39 echo "${file} has changed? cp new-${file} ${file}" 1>&2
44 # Format of the input table
45 read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
53 if test "${line}" = ""
56 elif test "${line}" = "#" -a "${comment}" = ""
59 elif expr "${line}" : "#" > /dev/null
65 # The semantics of IFS varies between different SH's. Some
66 # treat ``::' as three fields while some treat it as just too.
67 # Work around this by eliminating ``::'' ....
68 line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
70 OFS="${IFS}" ; IFS="[:]"
71 eval read ${read} <<EOF
76 if test -n "${garbage_at_eol}"
78 echo "Garbage at end-of-line in ${line}" 1>&2
83 # .... and then going back through each field and strip out those
84 # that ended up with just that space character.
87 if eval test \"\${${r}}\" = \"\ \"
94 m ) staticdefault="${predefault}" ;;
95 M ) staticdefault="0" ;;
96 * ) test "${staticdefault}" || staticdefault=0 ;;
101 case "${invalid_p}" in
103 if test -n "${predefault}"
105 #invalid_p="gdbarch->${function} == ${predefault}"
106 predicate="gdbarch->${function} != ${predefault}"
107 elif class_is_variable_p
109 predicate="gdbarch->${function} != 0"
110 elif class_is_function_p
112 predicate="gdbarch->${function} != NULL"
116 echo "Predicate function ${function} with invalid_p." 1>&2
123 # PREDEFAULT is a valid fallback definition of MEMBER when
124 # multi-arch is not enabled. This ensures that the
125 # default value, when multi-arch is the same as the
126 # default value when not multi-arch. POSTDEFAULT is
127 # always a valid definition of MEMBER as this again
128 # ensures consistency.
130 if [ -n "${postdefault}" ]
132 fallbackdefault="${postdefault}"
133 elif [ -n "${predefault}" ]
135 fallbackdefault="${predefault}"
140 #NOT YET: See gdbarch.log for basic verification of
155 fallback_default_p ()
157 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
158 || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
161 class_is_variable_p ()
169 class_is_function_p ()
172 *f* | *F* | *m* | *M* ) true ;;
177 class_is_multiarch_p ()
185 class_is_predicate_p ()
188 *F* | *V* | *M* ) true ;;
202 # dump out/verify the doco
212 # F -> function + predicate
213 # hiding a function + predicate to test function validity
216 # V -> variable + predicate
217 # hiding a variable + predicate to test variables validity
219 # hiding something from the ``struct info'' object
220 # m -> multi-arch function
221 # hiding a multi-arch function (parameterised with the architecture)
222 # M -> multi-arch function + predicate
223 # hiding a multi-arch function + predicate to test function validity
227 # For functions, the return type; for variables, the data type
231 # For functions, the member function name; for variables, the
232 # variable name. Member function names are always prefixed with
233 # ``gdbarch_'' for name-space purity.
237 # The formal argument list. It is assumed that the formal
238 # argument list includes the actual name of each list element.
239 # A function with no arguments shall have ``void'' as the
240 # formal argument list.
244 # The list of actual arguments. The arguments specified shall
245 # match the FORMAL list given above. Functions with out
246 # arguments leave this blank.
250 # To help with the GDB startup a static gdbarch object is
251 # created. STATICDEFAULT is the value to insert into that
252 # static gdbarch object. Since this a static object only
253 # simple expressions can be used.
255 # If STATICDEFAULT is empty, zero is used.
259 # An initial value to assign to MEMBER of the freshly
260 # malloc()ed gdbarch object. After initialization, the
261 # freshly malloc()ed object is passed to the target
262 # architecture code for further updates.
264 # If PREDEFAULT is empty, zero is used.
266 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
267 # INVALID_P are specified, PREDEFAULT will be used as the
268 # default for the non- multi-arch target.
270 # A zero PREDEFAULT function will force the fallback to call
273 # Variable declarations can refer to ``gdbarch'' which will
274 # contain the current architecture. Care should be taken.
278 # A value to assign to MEMBER of the new gdbarch object should
279 # the target architecture code fail to change the PREDEFAULT
282 # If POSTDEFAULT is empty, no post update is performed.
284 # If both INVALID_P and POSTDEFAULT are non-empty then
285 # INVALID_P will be used to determine if MEMBER should be
286 # changed to POSTDEFAULT.
288 # If a non-empty POSTDEFAULT and a zero INVALID_P are
289 # specified, POSTDEFAULT will be used as the default for the
290 # non- multi-arch target (regardless of the value of
293 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
295 # Variable declarations can refer to ``gdbarch'' which
296 # will contain the current architecture. Care should be
301 # A predicate equation that validates MEMBER. Non-zero is
302 # returned if the code creating the new architecture failed to
303 # initialize MEMBER or the initialized the member is invalid.
304 # If POSTDEFAULT is non-empty then MEMBER will be updated to
305 # that value. If POSTDEFAULT is empty then internal_error()
308 # If INVALID_P is empty, a check that MEMBER is no longer
309 # equal to PREDEFAULT is used.
311 # The expression ``0'' disables the INVALID_P check making
312 # PREDEFAULT a legitimate value.
314 # See also PREDEFAULT and POSTDEFAULT.
318 # An optional expression that convers MEMBER to a value
319 # suitable for formatting using %s.
321 # If PRINT is empty, core_addr_to_string_nz (for CORE_ADDR)
322 # or plongest (anything else) is used.
324 garbage_at_eol ) : ;;
326 # Catches stray fields.
329 echo "Bad field ${field}"
337 # See below (DOCO) for description of each field
339 i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name
341 i:int:byte_order:::BFD_ENDIAN_BIG
342 i:int:byte_order_for_code:::BFD_ENDIAN_BIG
344 i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
346 i:const struct target_desc *:target_desc:::::::host_address_to_string (gdbarch->target_desc)
348 # The bit byte-order has to do just with numbering of bits in debugging symbols
349 # and such. Conceptually, it's quite separate from byte/word byte order.
350 v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
352 # Number of bits in a char or unsigned char for the target machine.
353 # Just like CHAR_BIT in <limits.h> but describes the target machine.
354 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
356 # Number of bits in a short or unsigned short for the target machine.
357 v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
358 # Number of bits in an int or unsigned int for the target machine.
359 v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
360 # Number of bits in a long or unsigned long for the target machine.
361 v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
362 # Number of bits in a long long or unsigned long long for the target
364 v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
366 # The ABI default bit-size and format for "float", "double", and "long
367 # double". These bit/format pairs should eventually be combined into
368 # a single object. For the moment, just initialize them as a pair.
369 # Each format describes both the big and little endian layouts (if
372 v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
373 v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
374 v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
375 v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
376 v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
377 v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
379 # For most targets, a pointer on the target and its representation as an
380 # address in GDB have the same size and "look the same". For such a
381 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
382 # / addr_bit will be set from it.
384 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
385 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
388 # ptr_bit is the size of a pointer on the target
389 v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
390 # addr_bit is the size of a target address as represented in gdb
391 v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
393 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
394 v:int:char_signed:::1:-1:1
396 F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
397 F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
398 # Function for getting target's idea of a frame pointer. FIXME: GDB's
399 # whole scheme for dealing with "frames" and "frame pointers" needs a
401 m:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
403 M:void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
404 M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
406 v:int:num_regs:::0:-1
407 # This macro gives the number of pseudo-registers that live in the
408 # register namespace but do not get fetched or stored on the target.
409 # These pseudo-registers may be aliases for other registers,
410 # combinations of other registers, or they may be computed by GDB.
411 v:int:num_pseudo_regs:::0:0::0
413 # GDB's standard (or well known) register numbers. These can map onto
414 # a real register or a pseudo (computed) register or not be defined at
416 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
417 v:int:sp_regnum:::-1:-1::0
418 v:int:pc_regnum:::-1:-1::0
419 v:int:ps_regnum:::-1:-1::0
420 v:int:fp0_regnum:::0:-1::0
421 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
422 m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
423 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
424 m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
425 # Convert from an sdb register number to an internal gdb register number.
426 m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
427 # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
428 m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
429 m:const char *:register_name:int regnr:regnr::0
431 # Return the type of a register specified by the architecture. Only
432 # the register cache should call this function directly; others should
433 # use "register_type".
434 M:struct type *:register_type:int reg_nr:reg_nr
436 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
437 M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
438 # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
439 # deprecated_fp_regnum.
440 v:int:deprecated_fp_regnum:::-1:-1::0
442 # See gdbint.texinfo. See infcall.c.
443 M:CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
444 v:int:call_dummy_location::::AT_ENTRY_POINT::0
445 M:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache
447 m:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all::default_print_registers_info::0
448 M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
449 M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
450 # MAP a GDB RAW register number onto a simulator register number. See
451 # also include/...-sim.h.
452 m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
453 m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
454 m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
455 # setjmp/longjmp support.
456 F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
458 v:int:believe_pcc_promotion:::::::
460 m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
461 f:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
462 f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
463 # Construct a value representing the contents of register REGNUM in
464 # frame FRAME, interpreted as type TYPE. The routine needs to
465 # allocate and return a struct value with all value attributes
466 # (but not the value contents) filled in.
467 f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
469 f:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
470 f:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
471 M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
473 # Return the return-value convention that will be used by FUNCTYPE
474 # to return a value of type VALTYPE. FUNCTYPE may be NULL in which
475 # case the return convention is computed based only on VALTYPE.
477 # If READBUF is not NULL, extract the return value and save it in this buffer.
479 # If WRITEBUF is not NULL, it contains a return value which will be
480 # stored into the appropriate register. This can be used when we want
481 # to force the value returned by a function (see the "return" command
483 M:enum return_value_convention:return_value:struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:functype, valtype, regcache, readbuf, writebuf
485 m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
486 M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
487 f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
488 m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
489 M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
490 m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
491 m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
492 v:CORE_ADDR:decr_pc_after_break:::0:::0
494 # A function can be addressed by either it's "pointer" (possibly a
495 # descriptor address) or "entry point" (first executable instruction).
496 # The method "convert_from_func_ptr_addr" converting the former to the
497 # latter. gdbarch_deprecated_function_start_offset is being used to implement
498 # a simplified subset of that functionality - the function's address
499 # corresponds to the "function pointer" and the function's start
500 # corresponds to the "function entry point" - and hence is redundant.
502 v:CORE_ADDR:deprecated_function_start_offset:::0:::0
504 # Return the remote protocol register number associated with this
505 # register. Normally the identity mapping.
506 m:int:remote_register_number:int regno:regno::default_remote_register_number::0
508 # Fetch the target specific address used to represent a load module.
509 F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
511 v:CORE_ADDR:frame_args_skip:::0:::0
512 M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
513 M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
514 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
515 # frame-base. Enable frame-base before frame-unwind.
516 F:int:frame_num_args:struct frame_info *frame:frame
518 M:CORE_ADDR:frame_align:CORE_ADDR address:address
519 m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
520 v:int:frame_red_zone_size
522 m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
523 # On some machines there are bits in addresses which are not really
524 # part of the address, but are used by the kernel, the hardware, etc.
525 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
526 # we get a "real" address such as one would find in a symbol table.
527 # This is used only for addresses of instructions, and even then I'm
528 # not sure it's used in all contexts. It exists to deal with there
529 # being a few stray bits in the PC which would mislead us, not as some
530 # sort of generic thing to handle alignment or segmentation (it's
531 # possible it should be in TARGET_READ_PC instead).
532 m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
533 # It is not at all clear why gdbarch_smash_text_address is not folded into
534 # gdbarch_addr_bits_remove.
535 m:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
537 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
538 # indicates if the target needs software single step. An ISA method to
541 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
542 # breakpoints using the breakpoint system instead of blatting memory directly
545 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
546 # target can single step. If not, then implement single step using breakpoints.
548 # A return value of 1 means that the software_single_step breakpoints
549 # were inserted; 0 means they were not.
550 F:int:software_single_step:struct frame_info *frame:frame
552 # Return non-zero if the processor is executing a delay slot and a
553 # further single-step is needed before the instruction finishes.
554 M:int:single_step_through_delay:struct frame_info *frame:frame
555 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
556 # disassembler. Perhaps objdump can handle it?
557 f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
558 f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
561 # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
562 # evaluates non-zero, this is the address where the debugger will place
563 # a step-resume breakpoint to get us past the dynamic linker.
564 m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
565 # Some systems also have trampoline code for returning from shared libs.
566 f:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
568 # A target might have problems with watchpoints as soon as the stack
569 # frame of the current function has been destroyed. This mostly happens
570 # as the first action in a funtion's epilogue. in_function_epilogue_p()
571 # is defined to return a non-zero value if either the given addr is one
572 # instruction after the stack destroying instruction up to the trailing
573 # return instruction or if we can figure out that the stack frame has
574 # already been invalidated regardless of the value of addr. Targets
575 # which don't suffer from that problem could just let this functionality
577 m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
578 # Given a vector of command-line arguments, return a newly allocated
579 # string which, when passed to the create_inferior function, will be
580 # parsed (on Unix systems, by the shell) to yield the same vector.
581 # This function should call error() if the argument vector is not
582 # representable for this target or if this target does not support
583 # command-line arguments.
584 # ARGC is the number of elements in the vector.
585 # ARGV is an array of strings, one per argument.
586 m:char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
587 f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
588 f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
589 v:int:cannot_step_breakpoint:::0:0::0
590 v:int:have_nonsteppable_watchpoint:::0:0::0
591 F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
592 M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
593 M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
594 # Is a register in a group
595 m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
596 # Fetch the pointer to the ith function argument.
597 F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
599 # Return the appropriate register set for a core file section with
600 # name SECT_NAME and size SECT_SIZE.
601 M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
603 # When creating core dumps, some systems encode the PID in addition
604 # to the LWP id in core file register section names. In those cases, the
605 # "XXX" in ".reg/XXX" is encoded as [LWPID << 16 | PID]. This setting
606 # is set to true for such architectures; false if "XXX" represents an LWP
607 # or thread id with no special encoding.
608 v:int:core_reg_section_encodes_pid:::0:0::0
610 # Supported register notes in a core file.
611 v:struct core_regset_section *:core_regset_sections:const char *name, int len::::::host_address_to_string (gdbarch->core_regset_sections)
613 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
614 # core file into buffer READBUF with length LEN.
615 M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
617 # How the core_stratum layer converts a PTID from a core file to a
619 M:char *:core_pid_to_str:ptid_t ptid:ptid
621 # If the elements of C++ vtables are in-place function descriptors rather
622 # than normal function pointers (which may point to code or a descriptor),
624 v:int:vtable_function_descriptors:::0:0::0
626 # Set if the least significant bit of the delta is used instead of the least
627 # significant bit of the pfn for pointers to virtual member functions.
628 v:int:vbit_in_delta:::0:0::0
630 # Advance PC to next instruction in order to skip a permanent breakpoint.
631 F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache
633 # The maximum length of an instruction on this architecture.
634 V:ULONGEST:max_insn_length:::0:0
636 # Copy the instruction at FROM to TO, and make any adjustments
637 # necessary to single-step it at that address.
639 # REGS holds the state the thread's registers will have before
640 # executing the copied instruction; the PC in REGS will refer to FROM,
641 # not the copy at TO. The caller should update it to point at TO later.
643 # Return a pointer to data of the architecture's choice to be passed
644 # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
645 # the instruction's effects have been completely simulated, with the
646 # resulting state written back to REGS.
648 # For a general explanation of displaced stepping and how GDB uses it,
649 # see the comments in infrun.c.
651 # The TO area is only guaranteed to have space for
652 # gdbarch_max_insn_length (arch) bytes, so this function must not
653 # write more bytes than that to that area.
655 # If you do not provide this function, GDB assumes that the
656 # architecture does not support displaced stepping.
658 # If your architecture doesn't need to adjust instructions before
659 # single-stepping them, consider using simple_displaced_step_copy_insn
661 M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
663 # Fix up the state resulting from successfully single-stepping a
664 # displaced instruction, to give the result we would have gotten from
665 # stepping the instruction in its original location.
667 # REGS is the register state resulting from single-stepping the
668 # displaced instruction.
670 # CLOSURE is the result from the matching call to
671 # gdbarch_displaced_step_copy_insn.
673 # If you provide gdbarch_displaced_step_copy_insn.but not this
674 # function, then GDB assumes that no fixup is needed after
675 # single-stepping the instruction.
677 # For a general explanation of displaced stepping and how GDB uses it,
678 # see the comments in infrun.c.
679 M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
681 # Free a closure returned by gdbarch_displaced_step_copy_insn.
683 # If you provide gdbarch_displaced_step_copy_insn, you must provide
684 # this function as well.
686 # If your architecture uses closures that don't need to be freed, then
687 # you can use simple_displaced_step_free_closure here.
689 # For a general explanation of displaced stepping and how GDB uses it,
690 # see the comments in infrun.c.
691 m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
693 # Return the address of an appropriate place to put displaced
694 # instructions while we step over them. There need only be one such
695 # place, since we're only stepping one thread over a breakpoint at a
698 # For a general explanation of displaced stepping and how GDB uses it,
699 # see the comments in infrun.c.
700 m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
702 # Refresh overlay mapped state for section OSECT.
703 F:void:overlay_update:struct obj_section *osect:osect
705 M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
707 # Handle special encoding of static variables in stabs debug info.
708 F:char *:static_transform_name:char *name:name
709 # Set if the address in N_SO or N_FUN stabs may be zero.
710 v:int:sofun_address_maybe_missing:::0:0::0
712 # Signal translation: translate inferior's signal (host's) number into
713 # GDB's representation.
714 m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0
715 # Signal translation: translate GDB's signal number into inferior's host
717 m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0
719 # Extra signal info inspection.
721 # Return a type suitable to inspect extra signal information.
722 M:struct type *:get_siginfo_type:void:
724 # Record architecture-specific information from the symbol table.
725 M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
727 # True if the list of shared libraries is one and only for all
728 # processes, as opposed to a list of shared libraries per inferior.
729 # When this property is true, GDB assumes that since shared libraries
730 # are shared across processes, so is all code. Hence, GDB further
731 # assumes an inserted breakpoint location is visible to all processes.
732 v:int:has_global_solist:::0:0::0
739 exec > new-gdbarch.log
740 function_list | while do_read
743 ${class} ${returntype} ${function} ($formal)
747 eval echo \"\ \ \ \ ${r}=\${${r}}\"
749 if class_is_predicate_p && fallback_default_p
751 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
755 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
757 echo "Error: postdefault is useless when invalid_p=0" 1>&2
761 if class_is_multiarch_p
763 if class_is_predicate_p ; then :
764 elif test "x${predefault}" = "x"
766 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
775 compare_new gdbarch.log
781 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
783 /* Dynamic architecture support for GDB, the GNU debugger.
785 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
786 Free Software Foundation, Inc.
788 This file is part of GDB.
790 This program is free software; you can redistribute it and/or modify
791 it under the terms of the GNU General Public License as published by
792 the Free Software Foundation; either version 3 of the License, or
793 (at your option) any later version.
795 This program is distributed in the hope that it will be useful,
796 but WITHOUT ANY WARRANTY; without even the implied warranty of
797 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
798 GNU General Public License for more details.
800 You should have received a copy of the GNU General Public License
801 along with this program. If not, see <http://www.gnu.org/licenses/>. */
803 /* This file was created with the aid of \`\`gdbarch.sh''.
805 The Bourne shell script \`\`gdbarch.sh'' creates the files
806 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
807 against the existing \`\`gdbarch.[hc]''. Any differences found
810 If editing this file, please also run gdbarch.sh and merge any
811 changes into that script. Conversely, when making sweeping changes
812 to this file, modifying gdbarch.sh and using its output may prove
834 struct minimal_symbol;
838 struct disassemble_info;
841 struct bp_target_info;
843 struct displaced_step_closure;
844 struct core_regset_section;
846 extern struct gdbarch *current_gdbarch;
847 extern struct gdbarch *target_gdbarch;
853 printf "/* The following are pre-initialized by GDBARCH. */\n"
854 function_list | while do_read
859 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
860 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
867 printf "/* The following are initialized by the target dependent code. */\n"
868 function_list | while do_read
870 if [ -n "${comment}" ]
872 echo "${comment}" | sed \
878 if class_is_predicate_p
881 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
883 if class_is_variable_p
886 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
887 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
889 if class_is_function_p
892 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
894 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
895 elif class_is_multiarch_p
897 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
899 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
901 if [ "x${formal}" = "xvoid" ]
903 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
905 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
907 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
914 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
917 /* Mechanism for co-ordinating the selection of a specific
920 GDB targets (*-tdep.c) can register an interest in a specific
921 architecture. Other GDB components can register a need to maintain
922 per-architecture data.
924 The mechanisms below ensures that there is only a loose connection
925 between the set-architecture command and the various GDB
926 components. Each component can independently register their need
927 to maintain architecture specific data with gdbarch.
931 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
934 The more traditional mega-struct containing architecture specific
935 data for all the various GDB components was also considered. Since
936 GDB is built from a variable number of (fairly independent)
937 components it was determined that the global aproach was not
941 /* Register a new architectural family with GDB.
943 Register support for the specified ARCHITECTURE with GDB. When
944 gdbarch determines that the specified architecture has been
945 selected, the corresponding INIT function is called.
949 The INIT function takes two parameters: INFO which contains the
950 information available to gdbarch about the (possibly new)
951 architecture; ARCHES which is a list of the previously created
952 \`\`struct gdbarch'' for this architecture.
954 The INFO parameter is, as far as possible, be pre-initialized with
955 information obtained from INFO.ABFD or the global defaults.
957 The ARCHES parameter is a linked list (sorted most recently used)
958 of all the previously created architures for this architecture
959 family. The (possibly NULL) ARCHES->gdbarch can used to access
960 values from the previously selected architecture for this
961 architecture family. The global \`\`current_gdbarch'' shall not be
964 The INIT function shall return any of: NULL - indicating that it
965 doesn't recognize the selected architecture; an existing \`\`struct
966 gdbarch'' from the ARCHES list - indicating that the new
967 architecture is just a synonym for an earlier architecture (see
968 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
969 - that describes the selected architecture (see gdbarch_alloc()).
971 The DUMP_TDEP function shall print out all target specific values.
972 Care should be taken to ensure that the function works in both the
973 multi-arch and non- multi-arch cases. */
977 struct gdbarch *gdbarch;
978 struct gdbarch_list *next;
983 /* Use default: NULL (ZERO). */
984 const struct bfd_arch_info *bfd_arch_info;
986 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
989 int byte_order_for_code;
991 /* Use default: NULL (ZERO). */
994 /* Use default: NULL (ZERO). */
995 struct gdbarch_tdep_info *tdep_info;
997 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
998 enum gdb_osabi osabi;
1000 /* Use default: NULL (ZERO). */
1001 const struct target_desc *target_desc;
1004 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
1005 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
1007 /* DEPRECATED - use gdbarch_register() */
1008 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
1010 extern void gdbarch_register (enum bfd_architecture architecture,
1011 gdbarch_init_ftype *,
1012 gdbarch_dump_tdep_ftype *);
1015 /* Return a freshly allocated, NULL terminated, array of the valid
1016 architecture names. Since architectures are registered during the
1017 _initialize phase this function only returns useful information
1018 once initialization has been completed. */
1020 extern const char **gdbarch_printable_names (void);
1023 /* Helper function. Search the list of ARCHES for a GDBARCH that
1024 matches the information provided by INFO. */
1026 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1029 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1030 basic initialization using values obtained from the INFO and TDEP
1031 parameters. set_gdbarch_*() functions are called to complete the
1032 initialization of the object. */
1034 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1037 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1038 It is assumed that the caller freeds the \`\`struct
1041 extern void gdbarch_free (struct gdbarch *);
1044 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1045 obstack. The memory is freed when the corresponding architecture
1048 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1049 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1050 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1053 /* Helper function. Force an update of the current architecture.
1055 The actual architecture selected is determined by INFO, \`\`(gdb) set
1056 architecture'' et.al., the existing architecture and BFD's default
1057 architecture. INFO should be initialized to zero and then selected
1058 fields should be updated.
1060 Returns non-zero if the update succeeds */
1062 extern int gdbarch_update_p (struct gdbarch_info info);
1065 /* Helper function. Find an architecture matching info.
1067 INFO should be initialized using gdbarch_info_init, relevant fields
1068 set, and then finished using gdbarch_info_fill.
1070 Returns the corresponding architecture, or NULL if no matching
1071 architecture was found. "current_gdbarch" is not updated. */
1073 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1076 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1078 FIXME: kettenis/20031124: Of the functions that follow, only
1079 gdbarch_from_bfd is supposed to survive. The others will
1080 dissappear since in the future GDB will (hopefully) be truly
1081 multi-arch. However, for now we're still stuck with the concept of
1082 a single active architecture. */
1084 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1087 /* Register per-architecture data-pointer.
1089 Reserve space for a per-architecture data-pointer. An identifier
1090 for the reserved data-pointer is returned. That identifer should
1091 be saved in a local static variable.
1093 Memory for the per-architecture data shall be allocated using
1094 gdbarch_obstack_zalloc. That memory will be deleted when the
1095 corresponding architecture object is deleted.
1097 When a previously created architecture is re-selected, the
1098 per-architecture data-pointer for that previous architecture is
1099 restored. INIT() is not re-called.
1101 Multiple registrarants for any architecture are allowed (and
1102 strongly encouraged). */
1104 struct gdbarch_data;
1106 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1107 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1108 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1109 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1110 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1111 struct gdbarch_data *data,
1114 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1117 /* Set the dynamic target-system-dependent parameters (architecture,
1118 byte-order, ...) using information found in the BFD */
1120 extern void set_gdbarch_from_file (bfd *);
1123 /* Initialize the current architecture to the "first" one we find on
1126 extern void initialize_current_architecture (void);
1128 /* gdbarch trace variable */
1129 extern int gdbarch_debug;
1131 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1136 #../move-if-change new-gdbarch.h gdbarch.h
1137 compare_new gdbarch.h
1144 exec > new-gdbarch.c
1149 #include "arch-utils.h"
1152 #include "inferior.h"
1155 #include "floatformat.h"
1157 #include "gdb_assert.h"
1158 #include "gdb_string.h"
1159 #include "reggroups.h"
1161 #include "gdb_obstack.h"
1162 #include "observer.h"
1163 #include "regcache.h"
1165 /* Static function declarations */
1167 static void alloc_gdbarch_data (struct gdbarch *);
1169 /* Non-zero if we want to trace architecture code. */
1171 #ifndef GDBARCH_DEBUG
1172 #define GDBARCH_DEBUG 0
1174 int gdbarch_debug = GDBARCH_DEBUG;
1176 show_gdbarch_debug (struct ui_file *file, int from_tty,
1177 struct cmd_list_element *c, const char *value)
1179 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1183 pformat (const struct floatformat **format)
1188 /* Just print out one of them - this is only for diagnostics. */
1189 return format[0]->name;
1194 # gdbarch open the gdbarch object
1196 printf "/* Maintain the struct gdbarch object */\n"
1198 printf "struct gdbarch\n"
1200 printf " /* Has this architecture been fully initialized? */\n"
1201 printf " int initialized_p;\n"
1203 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1204 printf " struct obstack *obstack;\n"
1206 printf " /* basic architectural information */\n"
1207 function_list | while do_read
1211 printf " ${returntype} ${function};\n"
1215 printf " /* target specific vector. */\n"
1216 printf " struct gdbarch_tdep *tdep;\n"
1217 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1219 printf " /* per-architecture data-pointers */\n"
1220 printf " unsigned nr_data;\n"
1221 printf " void **data;\n"
1223 printf " /* per-architecture swap-regions */\n"
1224 printf " struct gdbarch_swap *swap;\n"
1227 /* Multi-arch values.
1229 When extending this structure you must:
1231 Add the field below.
1233 Declare set/get functions and define the corresponding
1236 gdbarch_alloc(): If zero/NULL is not a suitable default,
1237 initialize the new field.
1239 verify_gdbarch(): Confirm that the target updated the field
1242 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1245 \`\`startup_gdbarch()'': Append an initial value to the static
1246 variable (base values on the host's c-type system).
1248 get_gdbarch(): Implement the set/get functions (probably using
1249 the macro's as shortcuts).
1254 function_list | while do_read
1256 if class_is_variable_p
1258 printf " ${returntype} ${function};\n"
1259 elif class_is_function_p
1261 printf " gdbarch_${function}_ftype *${function};\n"
1266 # A pre-initialized vector
1270 /* The default architecture uses host values (for want of a better
1274 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1276 printf "struct gdbarch startup_gdbarch =\n"
1278 printf " 1, /* Always initialized. */\n"
1279 printf " NULL, /* The obstack. */\n"
1280 printf " /* basic architecture information */\n"
1281 function_list | while do_read
1285 printf " ${staticdefault}, /* ${function} */\n"
1289 /* target specific vector and its dump routine */
1291 /*per-architecture data-pointers and swap regions */
1293 /* Multi-arch values */
1295 function_list | while do_read
1297 if class_is_function_p || class_is_variable_p
1299 printf " ${staticdefault}, /* ${function} */\n"
1303 /* startup_gdbarch() */
1306 struct gdbarch *current_gdbarch = &startup_gdbarch;
1307 struct gdbarch *target_gdbarch = &startup_gdbarch;
1310 # Create a new gdbarch struct
1313 /* Create a new \`\`struct gdbarch'' based on information provided by
1314 \`\`struct gdbarch_info''. */
1319 gdbarch_alloc (const struct gdbarch_info *info,
1320 struct gdbarch_tdep *tdep)
1322 struct gdbarch *gdbarch;
1324 /* Create an obstack for allocating all the per-architecture memory,
1325 then use that to allocate the architecture vector. */
1326 struct obstack *obstack = XMALLOC (struct obstack);
1327 obstack_init (obstack);
1328 gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
1329 memset (gdbarch, 0, sizeof (*gdbarch));
1330 gdbarch->obstack = obstack;
1332 alloc_gdbarch_data (gdbarch);
1334 gdbarch->tdep = tdep;
1337 function_list | while do_read
1341 printf " gdbarch->${function} = info->${function};\n"
1345 printf " /* Force the explicit initialization of these. */\n"
1346 function_list | while do_read
1348 if class_is_function_p || class_is_variable_p
1350 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1352 printf " gdbarch->${function} = ${predefault};\n"
1357 /* gdbarch_alloc() */
1363 # Free a gdbarch struct.
1367 /* Allocate extra space using the per-architecture obstack. */
1370 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1372 void *data = obstack_alloc (arch->obstack, size);
1373 memset (data, 0, size);
1378 /* Free a gdbarch struct. This should never happen in normal
1379 operation --- once you've created a gdbarch, you keep it around.
1380 However, if an architecture's init function encounters an error
1381 building the structure, it may need to clean up a partially
1382 constructed gdbarch. */
1385 gdbarch_free (struct gdbarch *arch)
1387 struct obstack *obstack;
1388 gdb_assert (arch != NULL);
1389 gdb_assert (!arch->initialized_p);
1390 obstack = arch->obstack;
1391 obstack_free (obstack, 0); /* Includes the ARCH. */
1396 # verify a new architecture
1400 /* Ensure that all values in a GDBARCH are reasonable. */
1403 verify_gdbarch (struct gdbarch *gdbarch)
1405 struct ui_file *log;
1406 struct cleanup *cleanups;
1409 log = mem_fileopen ();
1410 cleanups = make_cleanup_ui_file_delete (log);
1412 if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1413 fprintf_unfiltered (log, "\n\tbyte-order");
1414 if (gdbarch->bfd_arch_info == NULL)
1415 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1416 /* Check those that need to be defined for the given multi-arch level. */
1418 function_list | while do_read
1420 if class_is_function_p || class_is_variable_p
1422 if [ "x${invalid_p}" = "x0" ]
1424 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1425 elif class_is_predicate_p
1427 printf " /* Skip verify of ${function}, has predicate */\n"
1428 # FIXME: See do_read for potential simplification
1429 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1431 printf " if (${invalid_p})\n"
1432 printf " gdbarch->${function} = ${postdefault};\n"
1433 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1435 printf " if (gdbarch->${function} == ${predefault})\n"
1436 printf " gdbarch->${function} = ${postdefault};\n"
1437 elif [ -n "${postdefault}" ]
1439 printf " if (gdbarch->${function} == 0)\n"
1440 printf " gdbarch->${function} = ${postdefault};\n"
1441 elif [ -n "${invalid_p}" ]
1443 printf " if (${invalid_p})\n"
1444 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1445 elif [ -n "${predefault}" ]
1447 printf " if (gdbarch->${function} == ${predefault})\n"
1448 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1453 buf = ui_file_xstrdup (log, &dummy);
1454 make_cleanup (xfree, buf);
1455 if (strlen (buf) > 0)
1456 internal_error (__FILE__, __LINE__,
1457 _("verify_gdbarch: the following are invalid ...%s"),
1459 do_cleanups (cleanups);
1463 # dump the structure
1467 /* Print out the details of the current architecture. */
1470 gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
1472 const char *gdb_nm_file = "<not-defined>";
1473 #if defined (GDB_NM_FILE)
1474 gdb_nm_file = GDB_NM_FILE;
1476 fprintf_unfiltered (file,
1477 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1480 function_list | sort -t: -k 3 | while do_read
1482 # First the predicate
1483 if class_is_predicate_p
1485 printf " fprintf_unfiltered (file,\n"
1486 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1487 printf " gdbarch_${function}_p (gdbarch));\n"
1489 # Print the corresponding value.
1490 if class_is_function_p
1492 printf " fprintf_unfiltered (file,\n"
1493 printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
1494 printf " host_address_to_string (gdbarch->${function}));\n"
1497 case "${print}:${returntype}" in
1500 print="core_addr_to_string_nz (gdbarch->${function})"
1504 print="plongest (gdbarch->${function})"
1510 printf " fprintf_unfiltered (file,\n"
1511 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1512 printf " ${print});\n"
1516 if (gdbarch->dump_tdep != NULL)
1517 gdbarch->dump_tdep (gdbarch, file);
1525 struct gdbarch_tdep *
1526 gdbarch_tdep (struct gdbarch *gdbarch)
1528 if (gdbarch_debug >= 2)
1529 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1530 return gdbarch->tdep;
1534 function_list | while do_read
1536 if class_is_predicate_p
1540 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1542 printf " gdb_assert (gdbarch != NULL);\n"
1543 printf " return ${predicate};\n"
1546 if class_is_function_p
1549 printf "${returntype}\n"
1550 if [ "x${formal}" = "xvoid" ]
1552 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1554 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1557 printf " gdb_assert (gdbarch != NULL);\n"
1558 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1559 if class_is_predicate_p && test -n "${predefault}"
1561 # Allow a call to a function with a predicate.
1562 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1564 printf " if (gdbarch_debug >= 2)\n"
1565 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1566 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1568 if class_is_multiarch_p
1575 if class_is_multiarch_p
1577 params="gdbarch, ${actual}"
1582 if [ "x${returntype}" = "xvoid" ]
1584 printf " gdbarch->${function} (${params});\n"
1586 printf " return gdbarch->${function} (${params});\n"
1591 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1592 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1594 printf " gdbarch->${function} = ${function};\n"
1596 elif class_is_variable_p
1599 printf "${returntype}\n"
1600 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1602 printf " gdb_assert (gdbarch != NULL);\n"
1603 if [ "x${invalid_p}" = "x0" ]
1605 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1606 elif [ -n "${invalid_p}" ]
1608 printf " /* Check variable is valid. */\n"
1609 printf " gdb_assert (!(${invalid_p}));\n"
1610 elif [ -n "${predefault}" ]
1612 printf " /* Check variable changed from pre-default. */\n"
1613 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1615 printf " if (gdbarch_debug >= 2)\n"
1616 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1617 printf " return gdbarch->${function};\n"
1621 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1622 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1624 printf " gdbarch->${function} = ${function};\n"
1626 elif class_is_info_p
1629 printf "${returntype}\n"
1630 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1632 printf " gdb_assert (gdbarch != NULL);\n"
1633 printf " if (gdbarch_debug >= 2)\n"
1634 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1635 printf " return gdbarch->${function};\n"
1640 # All the trailing guff
1644 /* Keep a registry of per-architecture data-pointers required by GDB
1651 gdbarch_data_pre_init_ftype *pre_init;
1652 gdbarch_data_post_init_ftype *post_init;
1655 struct gdbarch_data_registration
1657 struct gdbarch_data *data;
1658 struct gdbarch_data_registration *next;
1661 struct gdbarch_data_registry
1664 struct gdbarch_data_registration *registrations;
1667 struct gdbarch_data_registry gdbarch_data_registry =
1672 static struct gdbarch_data *
1673 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1674 gdbarch_data_post_init_ftype *post_init)
1676 struct gdbarch_data_registration **curr;
1677 /* Append the new registraration. */
1678 for (curr = &gdbarch_data_registry.registrations;
1680 curr = &(*curr)->next);
1681 (*curr) = XMALLOC (struct gdbarch_data_registration);
1682 (*curr)->next = NULL;
1683 (*curr)->data = XMALLOC (struct gdbarch_data);
1684 (*curr)->data->index = gdbarch_data_registry.nr++;
1685 (*curr)->data->pre_init = pre_init;
1686 (*curr)->data->post_init = post_init;
1687 (*curr)->data->init_p = 1;
1688 return (*curr)->data;
1691 struct gdbarch_data *
1692 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1694 return gdbarch_data_register (pre_init, NULL);
1697 struct gdbarch_data *
1698 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1700 return gdbarch_data_register (NULL, post_init);
1703 /* Create/delete the gdbarch data vector. */
1706 alloc_gdbarch_data (struct gdbarch *gdbarch)
1708 gdb_assert (gdbarch->data == NULL);
1709 gdbarch->nr_data = gdbarch_data_registry.nr;
1710 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1713 /* Initialize the current value of the specified per-architecture
1717 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1718 struct gdbarch_data *data,
1721 gdb_assert (data->index < gdbarch->nr_data);
1722 gdb_assert (gdbarch->data[data->index] == NULL);
1723 gdb_assert (data->pre_init == NULL);
1724 gdbarch->data[data->index] = pointer;
1727 /* Return the current value of the specified per-architecture
1731 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1733 gdb_assert (data->index < gdbarch->nr_data);
1734 if (gdbarch->data[data->index] == NULL)
1736 /* The data-pointer isn't initialized, call init() to get a
1738 if (data->pre_init != NULL)
1739 /* Mid architecture creation: pass just the obstack, and not
1740 the entire architecture, as that way it isn't possible for
1741 pre-init code to refer to undefined architecture
1743 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1744 else if (gdbarch->initialized_p
1745 && data->post_init != NULL)
1746 /* Post architecture creation: pass the entire architecture
1747 (as all fields are valid), but be careful to also detect
1748 recursive references. */
1750 gdb_assert (data->init_p);
1752 gdbarch->data[data->index] = data->post_init (gdbarch);
1756 /* The architecture initialization hasn't completed - punt -
1757 hope that the caller knows what they are doing. Once
1758 deprecated_set_gdbarch_data has been initialized, this can be
1759 changed to an internal error. */
1761 gdb_assert (gdbarch->data[data->index] != NULL);
1763 return gdbarch->data[data->index];
1767 /* Keep a registry of the architectures known by GDB. */
1769 struct gdbarch_registration
1771 enum bfd_architecture bfd_architecture;
1772 gdbarch_init_ftype *init;
1773 gdbarch_dump_tdep_ftype *dump_tdep;
1774 struct gdbarch_list *arches;
1775 struct gdbarch_registration *next;
1778 static struct gdbarch_registration *gdbarch_registry = NULL;
1781 append_name (const char ***buf, int *nr, const char *name)
1783 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1789 gdbarch_printable_names (void)
1791 /* Accumulate a list of names based on the registed list of
1793 enum bfd_architecture a;
1795 const char **arches = NULL;
1796 struct gdbarch_registration *rego;
1797 for (rego = gdbarch_registry;
1801 const struct bfd_arch_info *ap;
1802 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1804 internal_error (__FILE__, __LINE__,
1805 _("gdbarch_architecture_names: multi-arch unknown"));
1808 append_name (&arches, &nr_arches, ap->printable_name);
1813 append_name (&arches, &nr_arches, NULL);
1819 gdbarch_register (enum bfd_architecture bfd_architecture,
1820 gdbarch_init_ftype *init,
1821 gdbarch_dump_tdep_ftype *dump_tdep)
1823 struct gdbarch_registration **curr;
1824 const struct bfd_arch_info *bfd_arch_info;
1825 /* Check that BFD recognizes this architecture */
1826 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1827 if (bfd_arch_info == NULL)
1829 internal_error (__FILE__, __LINE__,
1830 _("gdbarch: Attempt to register unknown architecture (%d)"),
1833 /* Check that we haven't seen this architecture before */
1834 for (curr = &gdbarch_registry;
1836 curr = &(*curr)->next)
1838 if (bfd_architecture == (*curr)->bfd_architecture)
1839 internal_error (__FILE__, __LINE__,
1840 _("gdbarch: Duplicate registraration of architecture (%s)"),
1841 bfd_arch_info->printable_name);
1845 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
1846 bfd_arch_info->printable_name,
1847 host_address_to_string (init));
1849 (*curr) = XMALLOC (struct gdbarch_registration);
1850 (*curr)->bfd_architecture = bfd_architecture;
1851 (*curr)->init = init;
1852 (*curr)->dump_tdep = dump_tdep;
1853 (*curr)->arches = NULL;
1854 (*curr)->next = NULL;
1858 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1859 gdbarch_init_ftype *init)
1861 gdbarch_register (bfd_architecture, init, NULL);
1865 /* Look for an architecture using gdbarch_info. */
1867 struct gdbarch_list *
1868 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1869 const struct gdbarch_info *info)
1871 for (; arches != NULL; arches = arches->next)
1873 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1875 if (info->byte_order != arches->gdbarch->byte_order)
1877 if (info->osabi != arches->gdbarch->osabi)
1879 if (info->target_desc != arches->gdbarch->target_desc)
1887 /* Find an architecture that matches the specified INFO. Create a new
1888 architecture if needed. Return that new architecture. Assumes
1889 that there is no current architecture. */
1891 static struct gdbarch *
1892 find_arch_by_info (struct gdbarch_info info)
1894 struct gdbarch *new_gdbarch;
1895 struct gdbarch_registration *rego;
1897 /* The existing architecture has been swapped out - all this code
1898 works from a clean slate. */
1899 gdb_assert (current_gdbarch == NULL);
1901 /* Fill in missing parts of the INFO struct using a number of
1902 sources: "set ..."; INFOabfd supplied; and the global
1904 gdbarch_info_fill (&info);
1906 /* Must have found some sort of architecture. */
1907 gdb_assert (info.bfd_arch_info != NULL);
1911 fprintf_unfiltered (gdb_stdlog,
1912 "find_arch_by_info: info.bfd_arch_info %s\n",
1913 (info.bfd_arch_info != NULL
1914 ? info.bfd_arch_info->printable_name
1916 fprintf_unfiltered (gdb_stdlog,
1917 "find_arch_by_info: info.byte_order %d (%s)\n",
1919 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1920 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1922 fprintf_unfiltered (gdb_stdlog,
1923 "find_arch_by_info: info.osabi %d (%s)\n",
1924 info.osabi, gdbarch_osabi_name (info.osabi));
1925 fprintf_unfiltered (gdb_stdlog,
1926 "find_arch_by_info: info.abfd %s\n",
1927 host_address_to_string (info.abfd));
1928 fprintf_unfiltered (gdb_stdlog,
1929 "find_arch_by_info: info.tdep_info %s\n",
1930 host_address_to_string (info.tdep_info));
1933 /* Find the tdep code that knows about this architecture. */
1934 for (rego = gdbarch_registry;
1937 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1942 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1943 "No matching architecture\n");
1947 /* Ask the tdep code for an architecture that matches "info". */
1948 new_gdbarch = rego->init (info, rego->arches);
1950 /* Did the tdep code like it? No. Reject the change and revert to
1951 the old architecture. */
1952 if (new_gdbarch == NULL)
1955 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1956 "Target rejected architecture\n");
1960 /* Is this a pre-existing architecture (as determined by already
1961 being initialized)? Move it to the front of the architecture
1962 list (keeping the list sorted Most Recently Used). */
1963 if (new_gdbarch->initialized_p)
1965 struct gdbarch_list **list;
1966 struct gdbarch_list *this;
1968 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1969 "Previous architecture %s (%s) selected\n",
1970 host_address_to_string (new_gdbarch),
1971 new_gdbarch->bfd_arch_info->printable_name);
1972 /* Find the existing arch in the list. */
1973 for (list = ®o->arches;
1974 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
1975 list = &(*list)->next);
1976 /* It had better be in the list of architectures. */
1977 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
1980 (*list) = this->next;
1981 /* Insert THIS at the front. */
1982 this->next = rego->arches;
1983 rego->arches = this;
1988 /* It's a new architecture. */
1990 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1991 "New architecture %s (%s) selected\n",
1992 host_address_to_string (new_gdbarch),
1993 new_gdbarch->bfd_arch_info->printable_name);
1995 /* Insert the new architecture into the front of the architecture
1996 list (keep the list sorted Most Recently Used). */
1998 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
1999 this->next = rego->arches;
2000 this->gdbarch = new_gdbarch;
2001 rego->arches = this;
2004 /* Check that the newly installed architecture is valid. Plug in
2005 any post init values. */
2006 new_gdbarch->dump_tdep = rego->dump_tdep;
2007 verify_gdbarch (new_gdbarch);
2008 new_gdbarch->initialized_p = 1;
2011 gdbarch_dump (new_gdbarch, gdb_stdlog);
2017 gdbarch_find_by_info (struct gdbarch_info info)
2019 struct gdbarch *new_gdbarch;
2021 /* Save the previously selected architecture, setting the global to
2022 NULL. This stops things like gdbarch->init() trying to use the
2023 previous architecture's configuration. The previous architecture
2024 may not even be of the same architecture family. The most recent
2025 architecture of the same family is found at the head of the
2026 rego->arches list. */
2027 struct gdbarch *old_gdbarch = current_gdbarch;
2028 current_gdbarch = NULL;
2030 /* Find the specified architecture. */
2031 new_gdbarch = find_arch_by_info (info);
2033 /* Restore the existing architecture. */
2034 gdb_assert (current_gdbarch == NULL);
2035 current_gdbarch = old_gdbarch;
2040 /* Make the specified architecture current. */
2043 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2045 gdb_assert (new_gdbarch != NULL);
2046 gdb_assert (current_gdbarch != NULL);
2047 gdb_assert (new_gdbarch->initialized_p);
2048 current_gdbarch = new_gdbarch;
2049 target_gdbarch = new_gdbarch;
2050 observer_notify_architecture_changed (new_gdbarch);
2051 registers_changed ();
2054 extern void _initialize_gdbarch (void);
2057 _initialize_gdbarch (void)
2059 struct cmd_list_element *c;
2061 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2062 Set architecture debugging."), _("\\
2063 Show architecture debugging."), _("\\
2064 When non-zero, architecture debugging is enabled."),
2067 &setdebuglist, &showdebuglist);
2073 #../move-if-change new-gdbarch.c gdbarch.c
2074 compare_new gdbarch.c