3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
6 # 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} ${file}" 1>&2
44 # Format of the input table
45 read="class macro returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
53 if test "${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}}\" = \"\ \"
93 FUNCTION=`echo ${function} | tr '[a-z]' '[A-Z]'`
94 if test "x${macro}" = "x="
96 # Provide a UCASE version of function (for when there isn't MACRO)
98 elif test "${macro}" = "${FUNCTION}"
100 echo "${function}: Specify = for macro field" 1>&2
105 # Check that macro definition wasn't supplied for multi-arch
108 if test "${macro}" != ""
110 echo "Error: Function ${function} multi-arch yet macro ${macro} supplied" 1>&2
117 m ) staticdefault="${predefault}" ;;
118 M ) staticdefault="0" ;;
119 * ) test "${staticdefault}" || staticdefault=0 ;;
124 case "${invalid_p}" in
126 if test -n "${predefault}"
128 #invalid_p="gdbarch->${function} == ${predefault}"
129 predicate="gdbarch->${function} != ${predefault}"
130 elif class_is_variable_p
132 predicate="gdbarch->${function} != 0"
133 elif class_is_function_p
135 predicate="gdbarch->${function} != NULL"
139 echo "Predicate function ${function} with invalid_p." 1>&2
146 # PREDEFAULT is a valid fallback definition of MEMBER when
147 # multi-arch is not enabled. This ensures that the
148 # default value, when multi-arch is the same as the
149 # default value when not multi-arch. POSTDEFAULT is
150 # always a valid definition of MEMBER as this again
151 # ensures consistency.
153 if [ -n "${postdefault}" ]
155 fallbackdefault="${postdefault}"
156 elif [ -n "${predefault}" ]
158 fallbackdefault="${predefault}"
163 #NOT YET: See gdbarch.log for basic verification of
178 fallback_default_p ()
180 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
181 || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
184 class_is_variable_p ()
192 class_is_function_p ()
195 *f* | *F* | *m* | *M* ) true ;;
200 class_is_multiarch_p ()
208 class_is_predicate_p ()
211 *F* | *V* | *M* ) true ;;
225 # dump out/verify the doco
235 # F -> function + predicate
236 # hiding a function + predicate to test function validity
239 # V -> variable + predicate
240 # hiding a variable + predicate to test variables validity
242 # hiding something from the ``struct info'' object
243 # m -> multi-arch function
244 # hiding a multi-arch function (parameterised with the architecture)
245 # M -> multi-arch function + predicate
246 # hiding a multi-arch function + predicate to test function validity
250 # The name of the legacy C macro by which this method can be
251 # accessed. If empty, no macro is defined. If "=", a macro
252 # formed from the upper-case function name is used.
256 # For functions, the return type; for variables, the data type
260 # For functions, the member function name; for variables, the
261 # variable name. Member function names are always prefixed with
262 # ``gdbarch_'' for name-space purity.
266 # The formal argument list. It is assumed that the formal
267 # argument list includes the actual name of each list element.
268 # A function with no arguments shall have ``void'' as the
269 # formal argument list.
273 # The list of actual arguments. The arguments specified shall
274 # match the FORMAL list given above. Functions with out
275 # arguments leave this blank.
279 # To help with the GDB startup a static gdbarch object is
280 # created. STATICDEFAULT is the value to insert into that
281 # static gdbarch object. Since this a static object only
282 # simple expressions can be used.
284 # If STATICDEFAULT is empty, zero is used.
288 # An initial value to assign to MEMBER of the freshly
289 # malloc()ed gdbarch object. After initialization, the
290 # freshly malloc()ed object is passed to the target
291 # architecture code for further updates.
293 # If PREDEFAULT is empty, zero is used.
295 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
296 # INVALID_P are specified, PREDEFAULT will be used as the
297 # default for the non- multi-arch target.
299 # A zero PREDEFAULT function will force the fallback to call
302 # Variable declarations can refer to ``gdbarch'' which will
303 # contain the current architecture. Care should be taken.
307 # A value to assign to MEMBER of the new gdbarch object should
308 # the target architecture code fail to change the PREDEFAULT
311 # If POSTDEFAULT is empty, no post update is performed.
313 # If both INVALID_P and POSTDEFAULT are non-empty then
314 # INVALID_P will be used to determine if MEMBER should be
315 # changed to POSTDEFAULT.
317 # If a non-empty POSTDEFAULT and a zero INVALID_P are
318 # specified, POSTDEFAULT will be used as the default for the
319 # non- multi-arch target (regardless of the value of
322 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
324 # Variable declarations can refer to ``current_gdbarch'' which
325 # will contain the current architecture. Care should be
330 # A predicate equation that validates MEMBER. Non-zero is
331 # returned if the code creating the new architecture failed to
332 # initialize MEMBER or the initialized the member is invalid.
333 # If POSTDEFAULT is non-empty then MEMBER will be updated to
334 # that value. If POSTDEFAULT is empty then internal_error()
337 # If INVALID_P is empty, a check that MEMBER is no longer
338 # equal to PREDEFAULT is used.
340 # The expression ``0'' disables the INVALID_P check making
341 # PREDEFAULT a legitimate value.
343 # See also PREDEFAULT and POSTDEFAULT.
347 # An optional expression that convers MEMBER to a value
348 # suitable for formatting using %s.
350 # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d
351 # (anything else) is used.
353 garbage_at_eol ) : ;;
355 # Catches stray fields.
358 echo "Bad field ${field}"
366 # See below (DOCO) for description of each field
368 i::const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (current_gdbarch)->printable_name
370 i::int:byte_order:::BFD_ENDIAN_BIG
372 i::enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
374 i::const struct target_desc *:target_desc:::::::paddr_d ((long) current_gdbarch->target_desc)
375 # Number of bits in a char or unsigned char for the target machine.
376 # Just like CHAR_BIT in <limits.h> but describes the target machine.
377 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
379 # Number of bits in a short or unsigned short for the target machine.
380 v::int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
381 # Number of bits in an int or unsigned int for the target machine.
382 v::int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
383 # Number of bits in a long or unsigned long for the target machine.
384 v::int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
385 # Number of bits in a long long or unsigned long long for the target
387 v::int:long_long_bit:::8 * sizeof (LONGEST):2*current_gdbarch->long_bit::0
389 # The ABI default bit-size and format for "float", "double", and "long
390 # double". These bit/format pairs should eventually be combined into
391 # a single object. For the moment, just initialize them as a pair.
392 # Each format describes both the big and little endian layouts (if
395 v::int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
396 v::const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (current_gdbarch->float_format)
397 v::int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
398 v::const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (current_gdbarch->double_format)
399 v::int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
400 v::const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (current_gdbarch->long_double_format)
402 # For most targets, a pointer on the target and its representation as an
403 # address in GDB have the same size and "look the same". For such a
404 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
405 # / addr_bit will be set from it.
407 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
408 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
411 # ptr_bit is the size of a pointer on the target
412 v::int:ptr_bit:::8 * sizeof (void*):current_gdbarch->int_bit::0
413 # addr_bit is the size of a target address as represented in gdb
414 v::int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (current_gdbarch):
416 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
417 v::int:char_signed:::1:-1:1
419 F::CORE_ADDR:read_pc:struct regcache *regcache:regcache
420 F::void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
421 # Function for getting target's idea of a frame pointer. FIXME: GDB's
422 # whole scheme for dealing with "frames" and "frame pointers" needs a
424 f::void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
426 M::void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
427 M::void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
429 v::int:num_regs:::0:-1
430 # This macro gives the number of pseudo-registers that live in the
431 # register namespace but do not get fetched or stored on the target.
432 # These pseudo-registers may be aliases for other registers,
433 # combinations of other registers, or they may be computed by GDB.
434 v::int:num_pseudo_regs:::0:0::0
436 # GDB's standard (or well known) register numbers. These can map onto
437 # a real register or a pseudo (computed) register or not be defined at
439 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
440 v::int:sp_regnum:::-1:-1::0
441 v::int:pc_regnum:::-1:-1::0
442 v::int:ps_regnum:::-1:-1::0
443 v::int:fp0_regnum:::0:-1::0
444 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
445 f::int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
446 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
447 f::int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
448 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
449 f::int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
450 # Convert from an sdb register number to an internal gdb register number.
451 f::int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
452 f::int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
453 f::const char *:register_name:int regnr:regnr
455 # Return the type of a register specified by the architecture. Only
456 # the register cache should call this function directly; others should
457 # use "register_type".
458 M::struct type *:register_type:int reg_nr:reg_nr
460 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
461 M::struct frame_id:unwind_dummy_id:struct frame_info *info:info
462 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
463 # deprecated_fp_regnum.
464 v::int:deprecated_fp_regnum:::-1:-1::0
466 # See gdbint.texinfo. See infcall.c.
467 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
468 v::int:call_dummy_location::::AT_ENTRY_POINT::0
469 M::CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr, regcache
471 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
472 M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
473 M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
474 # MAP a GDB RAW register number onto a simulator register number. See
475 # also include/...-sim.h.
476 f::int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
477 f::int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
478 f::int:cannot_store_register:int regnum:regnum::cannot_register_not::0
479 # setjmp/longjmp support.
480 F::int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
482 v::int:believe_pcc_promotion:::::::
484 f::int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
485 f::void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
486 f::void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
487 # Construct a value representing the contents of register REGNUM in
488 # frame FRAME, interpreted as type TYPE. The routine needs to
489 # allocate and return a struct value with all value attributes
490 # (but not the value contents) filled in.
491 f::struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
493 f::CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
494 f::void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
495 M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
497 # It has been suggested that this, well actually its predecessor,
498 # should take the type/value of the function to be called and not the
499 # return type. This is left as an exercise for the reader.
501 # NOTE: cagney/2004-06-13: The function stack.c:return_command uses
502 # the predicate with default hack to avoid calling store_return_value
503 # (via legacy_return_value), when a small struct is involved.
505 M::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:valtype, regcache, readbuf, writebuf::legacy_return_value
507 # The deprecated methods extract_return_value, store_return_value,
508 # DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
509 # deprecated_use_struct_convention have all been folded into
512 f::void:extract_return_value:struct type *type, struct regcache *regcache, gdb_byte *valbuf:type, regcache, valbuf:0
513 f::void:store_return_value:struct type *type, struct regcache *regcache, const gdb_byte *valbuf:type, regcache, valbuf:0
514 f::int:deprecated_use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::generic_use_struct_convention::0
516 f::CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
517 f::int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
518 f::const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
519 M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
520 f::int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
521 f::int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
522 v::CORE_ADDR:decr_pc_after_break:::0:::0
524 # A function can be addressed by either it's "pointer" (possibly a
525 # descriptor address) or "entry point" (first executable instruction).
526 # The method "convert_from_func_ptr_addr" converting the former to the
527 # latter. gdbarch_deprecated_function_start_offset is being used to implement
528 # a simplified subset of that functionality - the function's address
529 # corresponds to the "function pointer" and the function's start
530 # corresponds to the "function entry point" - and hence is redundant.
532 v::CORE_ADDR:deprecated_function_start_offset:::0:::0
534 # Return the remote protocol register number associated with this
535 # register. Normally the identity mapping.
536 m::int:remote_register_number:int regno:regno::default_remote_register_number::0
538 # Fetch the target specific address used to represent a load module.
539 F::CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
541 v::CORE_ADDR:frame_args_skip:::0:::0
542 M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
543 M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
544 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
545 # frame-base. Enable frame-base before frame-unwind.
546 F::int:frame_num_args:struct frame_info *frame:frame
548 M::CORE_ADDR:frame_align:CORE_ADDR address:address
549 # deprecated_reg_struct_has_addr has been replaced by
550 # stabs_argument_has_addr.
551 F::int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
552 m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
553 v::int:frame_red_zone_size
555 m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
556 # On some machines there are bits in addresses which are not really
557 # part of the address, but are used by the kernel, the hardware, etc.
558 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
559 # we get a "real" address such as one would find in a symbol table.
560 # This is used only for addresses of instructions, and even then I'm
561 # not sure it's used in all contexts. It exists to deal with there
562 # being a few stray bits in the PC which would mislead us, not as some
563 # sort of generic thing to handle alignment or segmentation (it's
564 # possible it should be in TARGET_READ_PC instead).
565 f::CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
566 # It is not at all clear why gdbarch_smash_text_address is not folded into
567 # gdbarch_addr_bits_remove.
568 f::CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
570 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
571 # indicates if the target needs software single step. An ISA method to
574 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
575 # breakpoints using the breakpoint system instead of blatting memory directly
578 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
579 # target can single step. If not, then implement single step using breakpoints.
581 # A return value of 1 means that the software_single_step breakpoints
582 # were inserted; 0 means they were not.
583 F::int:software_single_step:struct frame_info *frame:frame
585 # Return non-zero if the processor is executing a delay slot and a
586 # further single-step is needed before the instruction finishes.
587 M::int:single_step_through_delay:struct frame_info *frame:frame
588 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
589 # disassembler. Perhaps objdump can handle it?
590 f::int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
591 f::CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
594 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
595 # evaluates non-zero, this is the address where the debugger will place
596 # a step-resume breakpoint to get us past the dynamic linker.
597 m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
598 # Some systems also have trampoline code for returning from shared libs.
599 f::int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
601 # A target might have problems with watchpoints as soon as the stack
602 # frame of the current function has been destroyed. This mostly happens
603 # as the first action in a funtion's epilogue. in_function_epilogue_p()
604 # is defined to return a non-zero value if either the given addr is one
605 # instruction after the stack destroying instruction up to the trailing
606 # return instruction or if we can figure out that the stack frame has
607 # already been invalidated regardless of the value of addr. Targets
608 # which don't suffer from that problem could just let this functionality
610 m::int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
611 # Given a vector of command-line arguments, return a newly allocated
612 # string which, when passed to the create_inferior function, will be
613 # parsed (on Unix systems, by the shell) to yield the same vector.
614 # This function should call error() if the argument vector is not
615 # representable for this target or if this target does not support
616 # command-line arguments.
617 # ARGC is the number of elements in the vector.
618 # ARGV is an array of strings, one per argument.
619 m::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
620 f::void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
621 f::void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
622 v::const char *:name_of_malloc:::"malloc":"malloc"::0:current_gdbarch->name_of_malloc
623 v::int:cannot_step_breakpoint:::0:0::0
624 v::int:have_nonsteppable_watchpoint:::0:0::0
625 F::int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
626 M::const char *:address_class_type_flags_to_name:int type_flags:type_flags
627 M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
628 # Is a register in a group
629 m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
630 # Fetch the pointer to the ith function argument.
631 F::CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
633 # Return the appropriate register set for a core file section with
634 # name SECT_NAME and size SECT_SIZE.
635 M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
637 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
638 # core file into buffer READBUF with length LEN.
639 M::LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
641 # If the elements of C++ vtables are in-place function descriptors rather
642 # than normal function pointers (which may point to code or a descriptor),
644 v::int:vtable_function_descriptors:::0:0::0
646 # Set if the least significant bit of the delta is used instead of the least
647 # significant bit of the pfn for pointers to virtual member functions.
648 v::int:vbit_in_delta:::0:0::0
650 # Advance PC to next instruction in order to skip a permanent breakpoint.
651 F::void:skip_permanent_breakpoint:struct regcache *regcache:regcache
653 # Refresh overlay mapped state for section OSECT.
654 F::void:overlay_update:struct obj_section *osect:osect
656 M::const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
663 exec > new-gdbarch.log
664 function_list | while do_read
667 ${class} ${returntype} ${function} ($formal)
671 eval echo \"\ \ \ \ ${r}=\${${r}}\"
673 if class_is_predicate_p && fallback_default_p
675 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
679 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
681 echo "Error: postdefault is useless when invalid_p=0" 1>&2
685 if class_is_multiarch_p
687 if class_is_predicate_p ; then :
688 elif test "x${predefault}" = "x"
690 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
699 compare_new gdbarch.log
705 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
707 /* Dynamic architecture support for GDB, the GNU debugger.
709 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
710 Free Software Foundation, Inc.
712 This file is part of GDB.
714 This program is free software; you can redistribute it and/or modify
715 it under the terms of the GNU General Public License as published by
716 the Free Software Foundation; either version 3 of the License, or
717 (at your option) any later version.
719 This program is distributed in the hope that it will be useful,
720 but WITHOUT ANY WARRANTY; without even the implied warranty of
721 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
722 GNU General Public License for more details.
724 You should have received a copy of the GNU General Public License
725 along with this program. If not, see <http://www.gnu.org/licenses/>. */
727 /* This file was created with the aid of \`\`gdbarch.sh''.
729 The Bourne shell script \`\`gdbarch.sh'' creates the files
730 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
731 against the existing \`\`gdbarch.[hc]''. Any differences found
734 If editing this file, please also run gdbarch.sh and merge any
735 changes into that script. Conversely, when making sweeping changes
736 to this file, modifying gdbarch.sh and using its output may prove
758 struct minimal_symbol;
762 struct disassemble_info;
765 struct bp_target_info;
768 extern struct gdbarch *current_gdbarch;
774 printf "/* The following are pre-initialized by GDBARCH. */\n"
775 function_list | while do_read
780 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
781 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
782 if test -n "${macro}"
784 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
785 printf "#error \"Non multi-arch definition of ${macro}\"\n"
787 printf "#if !defined (${macro})\n"
788 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
797 printf "/* The following are initialized by the target dependent code. */\n"
798 function_list | while do_read
800 if [ -n "${comment}" ]
802 echo "${comment}" | sed \
808 if class_is_predicate_p
810 if test -n "${macro}"
813 printf "#if defined (${macro})\n"
814 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
815 printf "#if !defined (${macro}_P)\n"
816 printf "#define ${macro}_P() (1)\n"
821 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
822 if test -n "${macro}"
824 printf "#if !defined (GDB_TM_FILE) && defined (${macro}_P)\n"
825 printf "#error \"Non multi-arch definition of ${macro}\"\n"
827 printf "#if !defined (${macro}_P)\n"
828 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
832 if class_is_variable_p
835 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
836 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
837 if test -n "${macro}"
839 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
840 printf "#error \"Non multi-arch definition of ${macro}\"\n"
842 printf "#if !defined (${macro})\n"
843 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
847 if class_is_function_p
850 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
852 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
853 elif class_is_multiarch_p
855 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
857 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
859 if [ "x${formal}" = "xvoid" ]
861 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
863 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
865 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
866 if test -n "${macro}"
868 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
869 printf "#error \"Non multi-arch definition of ${macro}\"\n"
871 if [ "x${actual}" = "x" ]
873 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
874 elif [ "x${actual}" = "x-" ]
876 d="#define ${macro} (gdbarch_${function} (current_gdbarch))"
878 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
880 printf "#if !defined (${macro})\n"
881 if [ "x${actual}" = "x" ]
883 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
884 elif [ "x${actual}" = "x-" ]
886 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
888 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
898 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
901 /* Mechanism for co-ordinating the selection of a specific
904 GDB targets (*-tdep.c) can register an interest in a specific
905 architecture. Other GDB components can register a need to maintain
906 per-architecture data.
908 The mechanisms below ensures that there is only a loose connection
909 between the set-architecture command and the various GDB
910 components. Each component can independently register their need
911 to maintain architecture specific data with gdbarch.
915 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
918 The more traditional mega-struct containing architecture specific
919 data for all the various GDB components was also considered. Since
920 GDB is built from a variable number of (fairly independent)
921 components it was determined that the global aproach was not
925 /* Register a new architectural family with GDB.
927 Register support for the specified ARCHITECTURE with GDB. When
928 gdbarch determines that the specified architecture has been
929 selected, the corresponding INIT function is called.
933 The INIT function takes two parameters: INFO which contains the
934 information available to gdbarch about the (possibly new)
935 architecture; ARCHES which is a list of the previously created
936 \`\`struct gdbarch'' for this architecture.
938 The INFO parameter is, as far as possible, be pre-initialized with
939 information obtained from INFO.ABFD or the global defaults.
941 The ARCHES parameter is a linked list (sorted most recently used)
942 of all the previously created architures for this architecture
943 family. The (possibly NULL) ARCHES->gdbarch can used to access
944 values from the previously selected architecture for this
945 architecture family. The global \`\`current_gdbarch'' shall not be
948 The INIT function shall return any of: NULL - indicating that it
949 doesn't recognize the selected architecture; an existing \`\`struct
950 gdbarch'' from the ARCHES list - indicating that the new
951 architecture is just a synonym for an earlier architecture (see
952 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
953 - that describes the selected architecture (see gdbarch_alloc()).
955 The DUMP_TDEP function shall print out all target specific values.
956 Care should be taken to ensure that the function works in both the
957 multi-arch and non- multi-arch cases. */
961 struct gdbarch *gdbarch;
962 struct gdbarch_list *next;
967 /* Use default: NULL (ZERO). */
968 const struct bfd_arch_info *bfd_arch_info;
970 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
973 /* Use default: NULL (ZERO). */
976 /* Use default: NULL (ZERO). */
977 struct gdbarch_tdep_info *tdep_info;
979 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
980 enum gdb_osabi osabi;
982 /* Use default: NULL (ZERO). */
983 const struct target_desc *target_desc;
986 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
987 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
989 /* DEPRECATED - use gdbarch_register() */
990 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
992 extern void gdbarch_register (enum bfd_architecture architecture,
993 gdbarch_init_ftype *,
994 gdbarch_dump_tdep_ftype *);
997 /* Return a freshly allocated, NULL terminated, array of the valid
998 architecture names. Since architectures are registered during the
999 _initialize phase this function only returns useful information
1000 once initialization has been completed. */
1002 extern const char **gdbarch_printable_names (void);
1005 /* Helper function. Search the list of ARCHES for a GDBARCH that
1006 matches the information provided by INFO. */
1008 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1011 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1012 basic initialization using values obtained from the INFO and TDEP
1013 parameters. set_gdbarch_*() functions are called to complete the
1014 initialization of the object. */
1016 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1019 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1020 It is assumed that the caller freeds the \`\`struct
1023 extern void gdbarch_free (struct gdbarch *);
1026 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1027 obstack. The memory is freed when the corresponding architecture
1030 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1031 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1032 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1035 /* Helper function. Force an update of the current architecture.
1037 The actual architecture selected is determined by INFO, \`\`(gdb) set
1038 architecture'' et.al., the existing architecture and BFD's default
1039 architecture. INFO should be initialized to zero and then selected
1040 fields should be updated.
1042 Returns non-zero if the update succeeds */
1044 extern int gdbarch_update_p (struct gdbarch_info info);
1047 /* Helper function. Find an architecture matching info.
1049 INFO should be initialized using gdbarch_info_init, relevant fields
1050 set, and then finished using gdbarch_info_fill.
1052 Returns the corresponding architecture, or NULL if no matching
1053 architecture was found. "current_gdbarch" is not updated. */
1055 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1058 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1060 FIXME: kettenis/20031124: Of the functions that follow, only
1061 gdbarch_from_bfd is supposed to survive. The others will
1062 dissappear since in the future GDB will (hopefully) be truly
1063 multi-arch. However, for now we're still stuck with the concept of
1064 a single active architecture. */
1066 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1069 /* Register per-architecture data-pointer.
1071 Reserve space for a per-architecture data-pointer. An identifier
1072 for the reserved data-pointer is returned. That identifer should
1073 be saved in a local static variable.
1075 Memory for the per-architecture data shall be allocated using
1076 gdbarch_obstack_zalloc. That memory will be deleted when the
1077 corresponding architecture object is deleted.
1079 When a previously created architecture is re-selected, the
1080 per-architecture data-pointer for that previous architecture is
1081 restored. INIT() is not re-called.
1083 Multiple registrarants for any architecture are allowed (and
1084 strongly encouraged). */
1086 struct gdbarch_data;
1088 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1089 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1090 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1091 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1092 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1093 struct gdbarch_data *data,
1096 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1099 /* Set the dynamic target-system-dependent parameters (architecture,
1100 byte-order, ...) using information found in the BFD */
1102 extern void set_gdbarch_from_file (bfd *);
1105 /* Initialize the current architecture to the "first" one we find on
1108 extern void initialize_current_architecture (void);
1110 /* gdbarch trace variable */
1111 extern int gdbarch_debug;
1113 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1118 #../move-if-change new-gdbarch.h gdbarch.h
1119 compare_new gdbarch.h
1126 exec > new-gdbarch.c
1131 #include "arch-utils.h"
1134 #include "inferior.h"
1137 #include "floatformat.h"
1139 #include "gdb_assert.h"
1140 #include "gdb_string.h"
1141 #include "gdb-events.h"
1142 #include "reggroups.h"
1144 #include "gdb_obstack.h"
1146 /* Static function declarations */
1148 static void alloc_gdbarch_data (struct gdbarch *);
1150 /* Non-zero if we want to trace architecture code. */
1152 #ifndef GDBARCH_DEBUG
1153 #define GDBARCH_DEBUG 0
1155 int gdbarch_debug = GDBARCH_DEBUG;
1157 show_gdbarch_debug (struct ui_file *file, int from_tty,
1158 struct cmd_list_element *c, const char *value)
1160 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1164 pformat (const struct floatformat **format)
1169 /* Just print out one of them - this is only for diagnostics. */
1170 return format[0]->name;
1175 # gdbarch open the gdbarch object
1177 printf "/* Maintain the struct gdbarch object */\n"
1179 printf "struct gdbarch\n"
1181 printf " /* Has this architecture been fully initialized? */\n"
1182 printf " int initialized_p;\n"
1184 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1185 printf " struct obstack *obstack;\n"
1187 printf " /* basic architectural information */\n"
1188 function_list | while do_read
1192 printf " ${returntype} ${function};\n"
1196 printf " /* target specific vector. */\n"
1197 printf " struct gdbarch_tdep *tdep;\n"
1198 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1200 printf " /* per-architecture data-pointers */\n"
1201 printf " unsigned nr_data;\n"
1202 printf " void **data;\n"
1204 printf " /* per-architecture swap-regions */\n"
1205 printf " struct gdbarch_swap *swap;\n"
1208 /* Multi-arch values.
1210 When extending this structure you must:
1212 Add the field below.
1214 Declare set/get functions and define the corresponding
1217 gdbarch_alloc(): If zero/NULL is not a suitable default,
1218 initialize the new field.
1220 verify_gdbarch(): Confirm that the target updated the field
1223 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1226 \`\`startup_gdbarch()'': Append an initial value to the static
1227 variable (base values on the host's c-type system).
1229 get_gdbarch(): Implement the set/get functions (probably using
1230 the macro's as shortcuts).
1235 function_list | while do_read
1237 if class_is_variable_p
1239 printf " ${returntype} ${function};\n"
1240 elif class_is_function_p
1242 printf " gdbarch_${function}_ftype *${function};\n"
1247 # A pre-initialized vector
1251 /* The default architecture uses host values (for want of a better
1255 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1257 printf "struct gdbarch startup_gdbarch =\n"
1259 printf " 1, /* Always initialized. */\n"
1260 printf " NULL, /* The obstack. */\n"
1261 printf " /* basic architecture information */\n"
1262 function_list | while do_read
1266 printf " ${staticdefault}, /* ${function} */\n"
1270 /* target specific vector and its dump routine */
1272 /*per-architecture data-pointers and swap regions */
1274 /* Multi-arch values */
1276 function_list | while do_read
1278 if class_is_function_p || class_is_variable_p
1280 printf " ${staticdefault}, /* ${function} */\n"
1284 /* startup_gdbarch() */
1287 struct gdbarch *current_gdbarch = &startup_gdbarch;
1290 # Create a new gdbarch struct
1293 /* Create a new \`\`struct gdbarch'' based on information provided by
1294 \`\`struct gdbarch_info''. */
1299 gdbarch_alloc (const struct gdbarch_info *info,
1300 struct gdbarch_tdep *tdep)
1302 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1303 so that macros such as TARGET_ARCHITECTURE, when expanded, refer to
1304 the current local architecture and not the previous global
1305 architecture. This ensures that the new architectures initial
1306 values are not influenced by the previous architecture. Once
1307 everything is parameterised with gdbarch, this will go away. */
1308 struct gdbarch *current_gdbarch;
1310 /* Create an obstack for allocating all the per-architecture memory,
1311 then use that to allocate the architecture vector. */
1312 struct obstack *obstack = XMALLOC (struct obstack);
1313 obstack_init (obstack);
1314 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1315 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1316 current_gdbarch->obstack = obstack;
1318 alloc_gdbarch_data (current_gdbarch);
1320 current_gdbarch->tdep = tdep;
1323 function_list | while do_read
1327 printf " current_gdbarch->${function} = info->${function};\n"
1331 printf " /* Force the explicit initialization of these. */\n"
1332 function_list | while do_read
1334 if class_is_function_p || class_is_variable_p
1336 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1338 printf " current_gdbarch->${function} = ${predefault};\n"
1343 /* gdbarch_alloc() */
1345 return current_gdbarch;
1349 # Free a gdbarch struct.
1353 /* Allocate extra space using the per-architecture obstack. */
1356 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1358 void *data = obstack_alloc (arch->obstack, size);
1359 memset (data, 0, size);
1364 /* Free a gdbarch struct. This should never happen in normal
1365 operation --- once you've created a gdbarch, you keep it around.
1366 However, if an architecture's init function encounters an error
1367 building the structure, it may need to clean up a partially
1368 constructed gdbarch. */
1371 gdbarch_free (struct gdbarch *arch)
1373 struct obstack *obstack;
1374 gdb_assert (arch != NULL);
1375 gdb_assert (!arch->initialized_p);
1376 obstack = arch->obstack;
1377 obstack_free (obstack, 0); /* Includes the ARCH. */
1382 # verify a new architecture
1386 /* Ensure that all values in a GDBARCH are reasonable. */
1388 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1389 just happens to match the global variable \`\`current_gdbarch''. That
1390 way macros refering to that variable get the local and not the global
1391 version - ulgh. Once everything is parameterised with gdbarch, this
1395 verify_gdbarch (struct gdbarch *current_gdbarch)
1397 struct ui_file *log;
1398 struct cleanup *cleanups;
1401 log = mem_fileopen ();
1402 cleanups = make_cleanup_ui_file_delete (log);
1404 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1405 fprintf_unfiltered (log, "\n\tbyte-order");
1406 if (current_gdbarch->bfd_arch_info == NULL)
1407 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1408 /* Check those that need to be defined for the given multi-arch level. */
1410 function_list | while do_read
1412 if class_is_function_p || class_is_variable_p
1414 if [ "x${invalid_p}" = "x0" ]
1416 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1417 elif class_is_predicate_p
1419 printf " /* Skip verify of ${function}, has predicate */\n"
1420 # FIXME: See do_read for potential simplification
1421 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1423 printf " if (${invalid_p})\n"
1424 printf " current_gdbarch->${function} = ${postdefault};\n"
1425 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1427 printf " if (current_gdbarch->${function} == ${predefault})\n"
1428 printf " current_gdbarch->${function} = ${postdefault};\n"
1429 elif [ -n "${postdefault}" ]
1431 printf " if (current_gdbarch->${function} == 0)\n"
1432 printf " current_gdbarch->${function} = ${postdefault};\n"
1433 elif [ -n "${invalid_p}" ]
1435 printf " if (${invalid_p})\n"
1436 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1437 elif [ -n "${predefault}" ]
1439 printf " if (current_gdbarch->${function} == ${predefault})\n"
1440 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1445 buf = ui_file_xstrdup (log, &dummy);
1446 make_cleanup (xfree, buf);
1447 if (strlen (buf) > 0)
1448 internal_error (__FILE__, __LINE__,
1449 _("verify_gdbarch: the following are invalid ...%s"),
1451 do_cleanups (cleanups);
1455 # dump the structure
1459 /* Print out the details of the current architecture. */
1461 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1462 just happens to match the global variable \`\`current_gdbarch''. That
1463 way macros refering to that variable get the local and not the global
1464 version - ulgh. Once everything is parameterised with gdbarch, this
1468 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1470 const char *gdb_xm_file = "<not-defined>";
1471 const char *gdb_nm_file = "<not-defined>";
1472 const char *gdb_tm_file = "<not-defined>";
1473 #if defined (GDB_XM_FILE)
1474 gdb_xm_file = GDB_XM_FILE;
1476 fprintf_unfiltered (file,
1477 "gdbarch_dump: GDB_XM_FILE = %s\\n",
1479 #if defined (GDB_NM_FILE)
1480 gdb_nm_file = GDB_NM_FILE;
1482 fprintf_unfiltered (file,
1483 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1485 #if defined (GDB_TM_FILE)
1486 gdb_tm_file = GDB_TM_FILE;
1488 fprintf_unfiltered (file,
1489 "gdbarch_dump: GDB_TM_FILE = %s\\n",
1492 function_list | sort -t: -k 4 | while do_read
1494 # First the predicate
1495 if class_is_predicate_p
1497 if test -n "${macro}"
1499 printf "#ifdef ${macro}_P\n"
1500 printf " fprintf_unfiltered (file,\n"
1501 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1502 printf " \"${macro}_P()\",\n"
1503 printf " XSTRING (${macro}_P ()));\n"
1506 printf " fprintf_unfiltered (file,\n"
1507 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1508 printf " gdbarch_${function}_p (current_gdbarch));\n"
1510 # Print the macro definition.
1511 if test -n "${macro}"
1513 printf "#ifdef ${macro}\n"
1514 if class_is_function_p
1516 printf " fprintf_unfiltered (file,\n"
1517 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1518 printf " \"${macro}(${actual})\",\n"
1519 printf " XSTRING (${macro} (${actual})));\n"
1521 printf " fprintf_unfiltered (file,\n"
1522 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1523 printf " XSTRING (${macro}));\n"
1527 # Print the corresponding value.
1528 if class_is_function_p
1530 printf " fprintf_unfiltered (file,\n"
1531 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1532 printf " (long) current_gdbarch->${function});\n"
1535 case "${print}:${returntype}" in
1538 print="paddr_nz (current_gdbarch->${function})"
1542 print="paddr_d (current_gdbarch->${function})"
1548 printf " fprintf_unfiltered (file,\n"
1549 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1550 printf " ${print});\n"
1554 if (current_gdbarch->dump_tdep != NULL)
1555 current_gdbarch->dump_tdep (current_gdbarch, file);
1563 struct gdbarch_tdep *
1564 gdbarch_tdep (struct gdbarch *gdbarch)
1566 if (gdbarch_debug >= 2)
1567 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1568 return gdbarch->tdep;
1572 function_list | while do_read
1574 if class_is_predicate_p
1578 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1580 printf " gdb_assert (gdbarch != NULL);\n"
1581 printf " return ${predicate};\n"
1584 if class_is_function_p
1587 printf "${returntype}\n"
1588 if [ "x${formal}" = "xvoid" ]
1590 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1592 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1595 printf " gdb_assert (gdbarch != NULL);\n"
1596 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1597 if class_is_predicate_p && test -n "${predefault}"
1599 # Allow a call to a function with a predicate.
1600 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1602 printf " if (gdbarch_debug >= 2)\n"
1603 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1604 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1606 if class_is_multiarch_p
1613 if class_is_multiarch_p
1615 params="gdbarch, ${actual}"
1620 if [ "x${returntype}" = "xvoid" ]
1622 printf " gdbarch->${function} (${params});\n"
1624 printf " return gdbarch->${function} (${params});\n"
1629 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1630 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1632 printf " gdbarch->${function} = ${function};\n"
1634 elif class_is_variable_p
1637 printf "${returntype}\n"
1638 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1640 printf " gdb_assert (gdbarch != NULL);\n"
1641 if [ "x${invalid_p}" = "x0" ]
1643 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1644 elif [ -n "${invalid_p}" ]
1646 printf " /* Check variable is valid. */\n"
1647 printf " gdb_assert (!(${invalid_p}));\n"
1648 elif [ -n "${predefault}" ]
1650 printf " /* Check variable changed from pre-default. */\n"
1651 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1653 printf " if (gdbarch_debug >= 2)\n"
1654 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1655 printf " return gdbarch->${function};\n"
1659 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1660 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1662 printf " gdbarch->${function} = ${function};\n"
1664 elif class_is_info_p
1667 printf "${returntype}\n"
1668 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1670 printf " gdb_assert (gdbarch != NULL);\n"
1671 printf " if (gdbarch_debug >= 2)\n"
1672 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1673 printf " return gdbarch->${function};\n"
1678 # All the trailing guff
1682 /* Keep a registry of per-architecture data-pointers required by GDB
1689 gdbarch_data_pre_init_ftype *pre_init;
1690 gdbarch_data_post_init_ftype *post_init;
1693 struct gdbarch_data_registration
1695 struct gdbarch_data *data;
1696 struct gdbarch_data_registration *next;
1699 struct gdbarch_data_registry
1702 struct gdbarch_data_registration *registrations;
1705 struct gdbarch_data_registry gdbarch_data_registry =
1710 static struct gdbarch_data *
1711 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1712 gdbarch_data_post_init_ftype *post_init)
1714 struct gdbarch_data_registration **curr;
1715 /* Append the new registraration. */
1716 for (curr = &gdbarch_data_registry.registrations;
1718 curr = &(*curr)->next);
1719 (*curr) = XMALLOC (struct gdbarch_data_registration);
1720 (*curr)->next = NULL;
1721 (*curr)->data = XMALLOC (struct gdbarch_data);
1722 (*curr)->data->index = gdbarch_data_registry.nr++;
1723 (*curr)->data->pre_init = pre_init;
1724 (*curr)->data->post_init = post_init;
1725 (*curr)->data->init_p = 1;
1726 return (*curr)->data;
1729 struct gdbarch_data *
1730 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1732 return gdbarch_data_register (pre_init, NULL);
1735 struct gdbarch_data *
1736 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1738 return gdbarch_data_register (NULL, post_init);
1741 /* Create/delete the gdbarch data vector. */
1744 alloc_gdbarch_data (struct gdbarch *gdbarch)
1746 gdb_assert (gdbarch->data == NULL);
1747 gdbarch->nr_data = gdbarch_data_registry.nr;
1748 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1751 /* Initialize the current value of the specified per-architecture
1755 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1756 struct gdbarch_data *data,
1759 gdb_assert (data->index < gdbarch->nr_data);
1760 gdb_assert (gdbarch->data[data->index] == NULL);
1761 gdb_assert (data->pre_init == NULL);
1762 gdbarch->data[data->index] = pointer;
1765 /* Return the current value of the specified per-architecture
1769 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1771 gdb_assert (data->index < gdbarch->nr_data);
1772 if (gdbarch->data[data->index] == NULL)
1774 /* The data-pointer isn't initialized, call init() to get a
1776 if (data->pre_init != NULL)
1777 /* Mid architecture creation: pass just the obstack, and not
1778 the entire architecture, as that way it isn't possible for
1779 pre-init code to refer to undefined architecture
1781 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1782 else if (gdbarch->initialized_p
1783 && data->post_init != NULL)
1784 /* Post architecture creation: pass the entire architecture
1785 (as all fields are valid), but be careful to also detect
1786 recursive references. */
1788 gdb_assert (data->init_p);
1790 gdbarch->data[data->index] = data->post_init (gdbarch);
1794 /* The architecture initialization hasn't completed - punt -
1795 hope that the caller knows what they are doing. Once
1796 deprecated_set_gdbarch_data has been initialized, this can be
1797 changed to an internal error. */
1799 gdb_assert (gdbarch->data[data->index] != NULL);
1801 return gdbarch->data[data->index];
1805 /* Keep a registry of the architectures known by GDB. */
1807 struct gdbarch_registration
1809 enum bfd_architecture bfd_architecture;
1810 gdbarch_init_ftype *init;
1811 gdbarch_dump_tdep_ftype *dump_tdep;
1812 struct gdbarch_list *arches;
1813 struct gdbarch_registration *next;
1816 static struct gdbarch_registration *gdbarch_registry = NULL;
1819 append_name (const char ***buf, int *nr, const char *name)
1821 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1827 gdbarch_printable_names (void)
1829 /* Accumulate a list of names based on the registed list of
1831 enum bfd_architecture a;
1833 const char **arches = NULL;
1834 struct gdbarch_registration *rego;
1835 for (rego = gdbarch_registry;
1839 const struct bfd_arch_info *ap;
1840 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1842 internal_error (__FILE__, __LINE__,
1843 _("gdbarch_architecture_names: multi-arch unknown"));
1846 append_name (&arches, &nr_arches, ap->printable_name);
1851 append_name (&arches, &nr_arches, NULL);
1857 gdbarch_register (enum bfd_architecture bfd_architecture,
1858 gdbarch_init_ftype *init,
1859 gdbarch_dump_tdep_ftype *dump_tdep)
1861 struct gdbarch_registration **curr;
1862 const struct bfd_arch_info *bfd_arch_info;
1863 /* Check that BFD recognizes this architecture */
1864 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1865 if (bfd_arch_info == NULL)
1867 internal_error (__FILE__, __LINE__,
1868 _("gdbarch: Attempt to register unknown architecture (%d)"),
1871 /* Check that we haven't seen this architecture before */
1872 for (curr = &gdbarch_registry;
1874 curr = &(*curr)->next)
1876 if (bfd_architecture == (*curr)->bfd_architecture)
1877 internal_error (__FILE__, __LINE__,
1878 _("gdbarch: Duplicate registraration of architecture (%s)"),
1879 bfd_arch_info->printable_name);
1883 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1884 bfd_arch_info->printable_name,
1887 (*curr) = XMALLOC (struct gdbarch_registration);
1888 (*curr)->bfd_architecture = bfd_architecture;
1889 (*curr)->init = init;
1890 (*curr)->dump_tdep = dump_tdep;
1891 (*curr)->arches = NULL;
1892 (*curr)->next = NULL;
1896 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1897 gdbarch_init_ftype *init)
1899 gdbarch_register (bfd_architecture, init, NULL);
1903 /* Look for an architecture using gdbarch_info. */
1905 struct gdbarch_list *
1906 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1907 const struct gdbarch_info *info)
1909 for (; arches != NULL; arches = arches->next)
1911 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1913 if (info->byte_order != arches->gdbarch->byte_order)
1915 if (info->osabi != arches->gdbarch->osabi)
1917 if (info->target_desc != arches->gdbarch->target_desc)
1925 /* Find an architecture that matches the specified INFO. Create a new
1926 architecture if needed. Return that new architecture. Assumes
1927 that there is no current architecture. */
1929 static struct gdbarch *
1930 find_arch_by_info (struct gdbarch_info info)
1932 struct gdbarch *new_gdbarch;
1933 struct gdbarch_registration *rego;
1935 /* The existing architecture has been swapped out - all this code
1936 works from a clean slate. */
1937 gdb_assert (current_gdbarch == NULL);
1939 /* Fill in missing parts of the INFO struct using a number of
1940 sources: "set ..."; INFOabfd supplied; and the global
1942 gdbarch_info_fill (&info);
1944 /* Must have found some sort of architecture. */
1945 gdb_assert (info.bfd_arch_info != NULL);
1949 fprintf_unfiltered (gdb_stdlog,
1950 "find_arch_by_info: info.bfd_arch_info %s\n",
1951 (info.bfd_arch_info != NULL
1952 ? info.bfd_arch_info->printable_name
1954 fprintf_unfiltered (gdb_stdlog,
1955 "find_arch_by_info: info.byte_order %d (%s)\n",
1957 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1958 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1960 fprintf_unfiltered (gdb_stdlog,
1961 "find_arch_by_info: info.osabi %d (%s)\n",
1962 info.osabi, gdbarch_osabi_name (info.osabi));
1963 fprintf_unfiltered (gdb_stdlog,
1964 "find_arch_by_info: info.abfd 0x%lx\n",
1966 fprintf_unfiltered (gdb_stdlog,
1967 "find_arch_by_info: info.tdep_info 0x%lx\n",
1968 (long) info.tdep_info);
1971 /* Find the tdep code that knows about this architecture. */
1972 for (rego = gdbarch_registry;
1975 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1980 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1981 "No matching architecture\n");
1985 /* Ask the tdep code for an architecture that matches "info". */
1986 new_gdbarch = rego->init (info, rego->arches);
1988 /* Did the tdep code like it? No. Reject the change and revert to
1989 the old architecture. */
1990 if (new_gdbarch == NULL)
1993 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1994 "Target rejected architecture\n");
1998 /* Is this a pre-existing architecture (as determined by already
1999 being initialized)? Move it to the front of the architecture
2000 list (keeping the list sorted Most Recently Used). */
2001 if (new_gdbarch->initialized_p)
2003 struct gdbarch_list **list;
2004 struct gdbarch_list *this;
2006 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2007 "Previous architecture 0x%08lx (%s) selected\n",
2009 new_gdbarch->bfd_arch_info->printable_name);
2010 /* Find the existing arch in the list. */
2011 for (list = ®o->arches;
2012 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2013 list = &(*list)->next);
2014 /* It had better be in the list of architectures. */
2015 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2018 (*list) = this->next;
2019 /* Insert THIS at the front. */
2020 this->next = rego->arches;
2021 rego->arches = this;
2026 /* It's a new architecture. */
2028 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2029 "New architecture 0x%08lx (%s) selected\n",
2031 new_gdbarch->bfd_arch_info->printable_name);
2033 /* Insert the new architecture into the front of the architecture
2034 list (keep the list sorted Most Recently Used). */
2036 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2037 this->next = rego->arches;
2038 this->gdbarch = new_gdbarch;
2039 rego->arches = this;
2042 /* Check that the newly installed architecture is valid. Plug in
2043 any post init values. */
2044 new_gdbarch->dump_tdep = rego->dump_tdep;
2045 verify_gdbarch (new_gdbarch);
2046 new_gdbarch->initialized_p = 1;
2049 gdbarch_dump (new_gdbarch, gdb_stdlog);
2055 gdbarch_find_by_info (struct gdbarch_info info)
2057 struct gdbarch *new_gdbarch;
2059 /* Save the previously selected architecture, setting the global to
2060 NULL. This stops things like gdbarch->init() trying to use the
2061 previous architecture's configuration. The previous architecture
2062 may not even be of the same architecture family. The most recent
2063 architecture of the same family is found at the head of the
2064 rego->arches list. */
2065 struct gdbarch *old_gdbarch = current_gdbarch;
2066 current_gdbarch = NULL;
2068 /* Find the specified architecture. */
2069 new_gdbarch = find_arch_by_info (info);
2071 /* Restore the existing architecture. */
2072 gdb_assert (current_gdbarch == NULL);
2073 current_gdbarch = old_gdbarch;
2078 /* Make the specified architecture current. */
2081 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2083 gdb_assert (new_gdbarch != NULL);
2084 gdb_assert (current_gdbarch != NULL);
2085 gdb_assert (new_gdbarch->initialized_p);
2086 current_gdbarch = new_gdbarch;
2087 architecture_changed_event ();
2088 reinit_frame_cache ();
2091 extern void _initialize_gdbarch (void);
2094 _initialize_gdbarch (void)
2096 struct cmd_list_element *c;
2098 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2099 Set architecture debugging."), _("\\
2100 Show architecture debugging."), _("\\
2101 When non-zero, architecture debugging is enabled."),
2104 &setdebuglist, &showdebuglist);
2110 #../move-if-change new-gdbarch.c gdbarch.c
2111 compare_new gdbarch.c