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 2 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, write to the Free Software
22 # Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 # Boston, MA 02110-1301, USA.
25 # Make certain that the script is not running in an internationalized
28 LC_ALL
=c
; export LC_ALL
36 echo "${file} missing? cp new-${file} ${file}" 1>&2
37 elif diff -u ${file} new-
${file}
39 echo "${file} unchanged" 1>&2
41 echo "${file} has changed? cp new-${file} ${file}" 1>&2
46 # Format of the input table
47 read="class macro returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
55 if test "${line}" = ""
58 elif test "${line}" = "#" -a "${comment}" = ""
61 elif expr "${line}" : "#" > /dev
/null
67 # The semantics of IFS varies between different SH's. Some
68 # treat ``::' as three fields while some treat it as just too.
69 # Work around this by eliminating ``::'' ....
70 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
72 OFS
="${IFS}" ; IFS
="[:]"
73 eval read ${read} <<EOF
78 if test -n "${garbage_at_eol}"
80 echo "Garbage at end-of-line in ${line}" 1>&2
85 # .... and then going back through each field and strip out those
86 # that ended up with just that space character.
89 if eval test \"\
${${r}}\" = \"\
\"
95 FUNCTION
=`echo ${function} | tr '[a-z]' '[A-Z]'`
96 if test "x${macro}" = "x="
98 # Provide a UCASE version of function (for when there isn't MACRO)
100 elif test "${macro}" = "${FUNCTION}"
102 echo "${function}: Specify = for macro field" 1>&2
107 # Check that macro definition wasn't supplied for multi-arch
110 if test "${macro}" != ""
112 echo "Error: Function ${function} multi-arch yet macro ${macro} supplied" 1>&2
119 m
) staticdefault
="${predefault}" ;;
120 M
) staticdefault
="0" ;;
121 * ) test "${staticdefault}" || staticdefault
=0 ;;
126 case "${invalid_p}" in
128 if test -n "${predefault}"
130 #invalid_p="gdbarch->${function} == ${predefault}"
131 predicate
="gdbarch->${function} != ${predefault}"
132 elif class_is_variable_p
134 predicate
="gdbarch->${function} != 0"
135 elif class_is_function_p
137 predicate
="gdbarch->${function} != NULL"
141 echo "Predicate function ${function} with invalid_p." 1>&2
148 # PREDEFAULT is a valid fallback definition of MEMBER when
149 # multi-arch is not enabled. This ensures that the
150 # default value, when multi-arch is the same as the
151 # default value when not multi-arch. POSTDEFAULT is
152 # always a valid definition of MEMBER as this again
153 # ensures consistency.
155 if [ -n "${postdefault}" ]
157 fallbackdefault
="${postdefault}"
158 elif [ -n "${predefault}" ]
160 fallbackdefault
="${predefault}"
165 #NOT YET: See gdbarch.log for basic verification of
180 fallback_default_p
()
182 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
183 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
186 class_is_variable_p
()
194 class_is_function_p
()
197 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
202 class_is_multiarch_p
()
210 class_is_predicate_p
()
213 *F
* |
*V
* |
*M
* ) true
;;
227 # dump out/verify the doco
237 # F -> function + predicate
238 # hiding a function + predicate to test function validity
241 # V -> variable + predicate
242 # hiding a variable + predicate to test variables validity
244 # hiding something from the ``struct info'' object
245 # m -> multi-arch function
246 # hiding a multi-arch function (parameterised with the architecture)
247 # M -> multi-arch function + predicate
248 # hiding a multi-arch function + predicate to test function validity
252 # The name of the legacy C macro by which this method can be
253 # accessed. If empty, no macro is defined. If "=", a macro
254 # formed from the upper-case function name is used.
258 # For functions, the return type; for variables, the data type
262 # For functions, the member function name; for variables, the
263 # variable name. Member function names are always prefixed with
264 # ``gdbarch_'' for name-space purity.
268 # The formal argument list. It is assumed that the formal
269 # argument list includes the actual name of each list element.
270 # A function with no arguments shall have ``void'' as the
271 # formal argument list.
275 # The list of actual arguments. The arguments specified shall
276 # match the FORMAL list given above. Functions with out
277 # arguments leave this blank.
281 # To help with the GDB startup a static gdbarch object is
282 # created. STATICDEFAULT is the value to insert into that
283 # static gdbarch object. Since this a static object only
284 # simple expressions can be used.
286 # If STATICDEFAULT is empty, zero is used.
290 # An initial value to assign to MEMBER of the freshly
291 # malloc()ed gdbarch object. After initialization, the
292 # freshly malloc()ed object is passed to the target
293 # architecture code for further updates.
295 # If PREDEFAULT is empty, zero is used.
297 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
298 # INVALID_P are specified, PREDEFAULT will be used as the
299 # default for the non- multi-arch target.
301 # A zero PREDEFAULT function will force the fallback to call
304 # Variable declarations can refer to ``gdbarch'' which will
305 # contain the current architecture. Care should be taken.
309 # A value to assign to MEMBER of the new gdbarch object should
310 # the target architecture code fail to change the PREDEFAULT
313 # If POSTDEFAULT is empty, no post update is performed.
315 # If both INVALID_P and POSTDEFAULT are non-empty then
316 # INVALID_P will be used to determine if MEMBER should be
317 # changed to POSTDEFAULT.
319 # If a non-empty POSTDEFAULT and a zero INVALID_P are
320 # specified, POSTDEFAULT will be used as the default for the
321 # non- multi-arch target (regardless of the value of
324 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
326 # Variable declarations can refer to ``current_gdbarch'' which
327 # will contain the current architecture. Care should be
332 # A predicate equation that validates MEMBER. Non-zero is
333 # returned if the code creating the new architecture failed to
334 # initialize MEMBER or the initialized the member is invalid.
335 # If POSTDEFAULT is non-empty then MEMBER will be updated to
336 # that value. If POSTDEFAULT is empty then internal_error()
339 # If INVALID_P is empty, a check that MEMBER is no longer
340 # equal to PREDEFAULT is used.
342 # The expression ``0'' disables the INVALID_P check making
343 # PREDEFAULT a legitimate value.
345 # See also PREDEFAULT and POSTDEFAULT.
349 # An optional expression that convers MEMBER to a value
350 # suitable for formatting using %s.
352 # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d
353 # (anything else) is used.
355 garbage_at_eol
) : ;;
357 # Catches stray fields.
360 echo "Bad field ${field}"
368 # See below (DOCO) for description of each field
370 i::const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (current_gdbarch)->printable_name
372 i::int:byte_order:::BFD_ENDIAN_BIG
374 i::enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
376 i::const struct target_desc *:target_desc:::::::paddr_d ((long) current_gdbarch->target_desc)
377 # Number of bits in a char or unsigned char for the target machine.
378 # Just like CHAR_BIT in <limits.h> but describes the target machine.
379 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
381 # Number of bits in a short or unsigned short for the target machine.
382 v::int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
383 # Number of bits in an int or unsigned int for the target machine.
384 v::int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
385 # Number of bits in a long or unsigned long for the target machine.
386 v::int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
387 # Number of bits in a long long or unsigned long long for the target
389 v::int:long_long_bit:::8 * sizeof (LONGEST):2*current_gdbarch->long_bit::0
391 # The ABI default bit-size and format for "float", "double", and "long
392 # double". These bit/format pairs should eventually be combined into
393 # a single object. For the moment, just initialize them as a pair.
394 # Each format describes both the big and little endian layouts (if
397 v::int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
398 v::const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (current_gdbarch->float_format)
399 v::int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
400 v::const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (current_gdbarch->double_format)
401 v::int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
402 v::const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (current_gdbarch->long_double_format)
404 # For most targets, a pointer on the target and its representation as an
405 # address in GDB have the same size and "look the same". For such a
406 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
407 # / addr_bit will be set from it.
409 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
410 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
413 # ptr_bit is the size of a pointer on the target
414 v::int:ptr_bit:::8 * sizeof (void*):current_gdbarch->int_bit::0
415 # addr_bit is the size of a target address as represented in gdb
416 v::int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (current_gdbarch):
418 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
419 v::int:char_signed:::1:-1:1
421 F::CORE_ADDR:read_pc:struct regcache *regcache:regcache
422 F::void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
423 # Function for getting target's idea of a frame pointer. FIXME: GDB's
424 # whole scheme for dealing with "frames" and "frame pointers" needs a
426 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
428 M::void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
429 M::void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
431 v::int:num_regs:::0:-1
432 # This macro gives the number of pseudo-registers that live in the
433 # register namespace but do not get fetched or stored on the target.
434 # These pseudo-registers may be aliases for other registers,
435 # combinations of other registers, or they may be computed by GDB.
436 v::int:num_pseudo_regs:::0:0::0
438 # GDB's standard (or well known) register numbers. These can map onto
439 # a real register or a pseudo (computed) register or not be defined at
441 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
442 v::int:sp_regnum:::-1:-1::0
443 v::int:pc_regnum:::-1:-1::0
444 v::int:ps_regnum:::-1:-1::0
445 v::int:fp0_regnum:::0:-1::0
446 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
447 f::int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
448 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
449 f::int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
450 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
451 f::int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
452 # Convert from an sdb register number to an internal gdb register number.
453 f::int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
454 f::int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
455 f::const char *:register_name:int regnr:regnr
457 # Return the type of a register specified by the architecture. Only
458 # the register cache should call this function directly; others should
459 # use "register_type".
460 M::struct type *:register_type:int reg_nr:reg_nr
462 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
463 M::struct frame_id:unwind_dummy_id:struct frame_info *info:info
464 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
465 # deprecated_fp_regnum.
466 v::int:deprecated_fp_regnum:::-1:-1::0
468 # See gdbint.texinfo. See infcall.c.
469 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
470 v::int:call_dummy_location::::AT_ENTRY_POINT::0
471 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
473 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
474 M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
475 M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
476 # MAP a GDB RAW register number onto a simulator register number. See
477 # also include/...-sim.h.
478 f::int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
479 f::int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
480 f::int:cannot_store_register:int regnum:regnum::cannot_register_not::0
481 # setjmp/longjmp support.
482 F::int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
484 v::int:believe_pcc_promotion:::::::
486 f::int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
487 f::void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
488 f::void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
489 # Construct a value representing the contents of register REGNUM in
490 # frame FRAME, interpreted as type TYPE. The routine needs to
491 # allocate and return a struct value with all value attributes
492 # (but not the value contents) filled in.
493 f::struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
495 f::CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
496 f::void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
497 M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
499 # It has been suggested that this, well actually its predecessor,
500 # should take the type/value of the function to be called and not the
501 # return type. This is left as an exercise for the reader.
503 # NOTE: cagney/2004-06-13: The function stack.c:return_command uses
504 # the predicate with default hack to avoid calling store_return_value
505 # (via legacy_return_value), when a small struct is involved.
507 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
509 # The deprecated methods extract_return_value, store_return_value,
510 # DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
511 # deprecated_use_struct_convention have all been folded into
514 f::void:extract_return_value:struct type *type, struct regcache *regcache, gdb_byte *valbuf:type, regcache, valbuf:0
515 f::void:store_return_value:struct type *type, struct regcache *regcache, const gdb_byte *valbuf:type, regcache, valbuf:0
516 f::int:deprecated_use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::generic_use_struct_convention::0
518 f::CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
519 f::int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
520 f::const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
521 M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
522 f::int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
523 f::int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
524 v::CORE_ADDR:decr_pc_after_break:::0:::0
526 # A function can be addressed by either it's "pointer" (possibly a
527 # descriptor address) or "entry point" (first executable instruction).
528 # The method "convert_from_func_ptr_addr" converting the former to the
529 # latter. gdbarch_deprecated_function_start_offset is being used to implement
530 # a simplified subset of that functionality - the function's address
531 # corresponds to the "function pointer" and the function's start
532 # corresponds to the "function entry point" - and hence is redundant.
534 v::CORE_ADDR:deprecated_function_start_offset:::0:::0
536 # Return the remote protocol register number associated with this
537 # register. Normally the identity mapping.
538 m::int:remote_register_number:int regno:regno::default_remote_register_number::0
540 # Fetch the target specific address used to represent a load module.
541 F::CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
543 v::CORE_ADDR:frame_args_skip:::0:::0
544 M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
545 M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
546 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
547 # frame-base. Enable frame-base before frame-unwind.
548 F::int:frame_num_args:struct frame_info *frame:frame
550 M::CORE_ADDR:frame_align:CORE_ADDR address:address
551 # deprecated_reg_struct_has_addr has been replaced by
552 # stabs_argument_has_addr.
553 F::int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
554 m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
555 v::int:frame_red_zone_size
557 m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
558 # On some machines there are bits in addresses which are not really
559 # part of the address, but are used by the kernel, the hardware, etc.
560 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
561 # we get a "real" address such as one would find in a symbol table.
562 # This is used only for addresses of instructions, and even then I'm
563 # not sure it's used in all contexts. It exists to deal with there
564 # being a few stray bits in the PC which would mislead us, not as some
565 # sort of generic thing to handle alignment or segmentation (it's
566 # possible it should be in TARGET_READ_PC instead).
567 f::CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
568 # It is not at all clear why gdbarch_smash_text_address is not folded into
569 # gdbarch_addr_bits_remove.
570 f::CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
572 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
573 # indicates if the target needs software single step. An ISA method to
576 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
577 # breakpoints using the breakpoint system instead of blatting memory directly
580 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
581 # target can single step. If not, then implement single step using breakpoints.
583 # A return value of 1 means that the software_single_step breakpoints
584 # were inserted; 0 means they were not.
585 F::int:software_single_step:struct frame_info *frame:frame
587 # Return non-zero if the processor is executing a delay slot and a
588 # further single-step is needed before the instruction finishes.
589 M::int:single_step_through_delay:struct frame_info *frame:frame
590 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
591 # disassembler. Perhaps objdump can handle it?
592 f::int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
593 f::CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
596 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
597 # evaluates non-zero, this is the address where the debugger will place
598 # a step-resume breakpoint to get us past the dynamic linker.
599 m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
600 # Some systems also have trampoline code for returning from shared libs.
601 f::int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
603 # A target might have problems with watchpoints as soon as the stack
604 # frame of the current function has been destroyed. This mostly happens
605 # as the first action in a funtion's epilogue. in_function_epilogue_p()
606 # is defined to return a non-zero value if either the given addr is one
607 # instruction after the stack destroying instruction up to the trailing
608 # return instruction or if we can figure out that the stack frame has
609 # already been invalidated regardless of the value of addr. Targets
610 # which don't suffer from that problem could just let this functionality
612 m::int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
613 # Given a vector of command-line arguments, return a newly allocated
614 # string which, when passed to the create_inferior function, will be
615 # parsed (on Unix systems, by the shell) to yield the same vector.
616 # This function should call error() if the argument vector is not
617 # representable for this target or if this target does not support
618 # command-line arguments.
619 # ARGC is the number of elements in the vector.
620 # ARGV is an array of strings, one per argument.
621 m::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
622 f::void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
623 f::void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
624 v::const char *:name_of_malloc:::"malloc":"malloc"::0:current_gdbarch->name_of_malloc
625 v::int:cannot_step_breakpoint:::0:0::0
626 v::int:have_nonsteppable_watchpoint:::0:0::0
627 F::int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
628 M::const char *:address_class_type_flags_to_name:int type_flags:type_flags
629 M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
630 # Is a register in a group
631 m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
632 # Fetch the pointer to the ith function argument.
633 F::CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
635 # Return the appropriate register set for a core file section with
636 # name SECT_NAME and size SECT_SIZE.
637 M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
639 # If the elements of C++ vtables are in-place function descriptors rather
640 # than normal function pointers (which may point to code or a descriptor),
642 v::int:vtable_function_descriptors:::0:0::0
644 # Set if the least significant bit of the delta is used instead of the least
645 # significant bit of the pfn for pointers to virtual member functions.
646 v::int:vbit_in_delta:::0:0::0
648 # Advance PC to next instruction in order to skip a permanent breakpoint.
649 F::void:skip_permanent_breakpoint:struct regcache *regcache:regcache
651 # Refresh overlay mapped state for section OSECT.
652 F::void:overlay_update:struct obj_section *osect:osect
659 exec > new-gdbarch.log
660 function_list |
while do_read
663 ${class} ${returntype} ${function} ($formal)
667 eval echo \"\ \ \ \
${r}=\
${${r}}\"
669 if class_is_predicate_p
&& fallback_default_p
671 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
675 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
677 echo "Error: postdefault is useless when invalid_p=0" 1>&2
681 if class_is_multiarch_p
683 if class_is_predicate_p
; then :
684 elif test "x${predefault}" = "x"
686 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
695 compare_new gdbarch.log
701 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
703 /* Dynamic architecture support for GDB, the GNU debugger.
705 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
706 Free Software Foundation, Inc.
708 This file is part of GDB.
710 This program is free software; you can redistribute it and/or modify
711 it under the terms of the GNU General Public License as published by
712 the Free Software Foundation; either version 2 of the License, or
713 (at your option) any later version.
715 This program is distributed in the hope that it will be useful,
716 but WITHOUT ANY WARRANTY; without even the implied warranty of
717 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
718 GNU General Public License for more details.
720 You should have received a copy of the GNU General Public License
721 along with this program; if not, write to the Free Software
722 Foundation, Inc., 51 Franklin Street, Fifth Floor,
723 Boston, MA 02110-1301, USA. */
725 /* This file was created with the aid of \`\`gdbarch.sh''.
727 The Bourne shell script \`\`gdbarch.sh'' creates the files
728 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
729 against the existing \`\`gdbarch.[hc]''. Any differences found
732 If editing this file, please also run gdbarch.sh and merge any
733 changes into that script. Conversely, when making sweeping changes
734 to this file, modifying gdbarch.sh and using its output may prove
756 struct minimal_symbol;
760 struct disassemble_info;
763 struct bp_target_info;
766 extern struct gdbarch *current_gdbarch;
772 printf "/* The following are pre-initialized by GDBARCH. */\n"
773 function_list |
while do_read
778 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
779 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
780 if test -n "${macro}"
782 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
783 printf "#error \"Non multi-arch definition of ${macro}\"\n"
785 printf "#if !defined (${macro})\n"
786 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
795 printf "/* The following are initialized by the target dependent code. */\n"
796 function_list |
while do_read
798 if [ -n "${comment}" ]
800 echo "${comment}" |
sed \
806 if class_is_predicate_p
808 if test -n "${macro}"
811 printf "#if defined (${macro})\n"
812 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
813 printf "#if !defined (${macro}_P)\n"
814 printf "#define ${macro}_P() (1)\n"
819 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
820 if test -n "${macro}"
822 printf "#if !defined (GDB_TM_FILE) && defined (${macro}_P)\n"
823 printf "#error \"Non multi-arch definition of ${macro}\"\n"
825 printf "#if !defined (${macro}_P)\n"
826 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
830 if class_is_variable_p
833 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
834 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
835 if test -n "${macro}"
837 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
838 printf "#error \"Non multi-arch definition of ${macro}\"\n"
840 printf "#if !defined (${macro})\n"
841 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
845 if class_is_function_p
848 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
850 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
851 elif class_is_multiarch_p
853 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
855 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
857 if [ "x${formal}" = "xvoid" ]
859 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
861 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
863 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
864 if test -n "${macro}"
866 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
867 printf "#error \"Non multi-arch definition of ${macro}\"\n"
869 if [ "x${actual}" = "x" ]
871 d
="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
872 elif [ "x${actual}" = "x-" ]
874 d
="#define ${macro} (gdbarch_${function} (current_gdbarch))"
876 d
="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
878 printf "#if !defined (${macro})\n"
879 if [ "x${actual}" = "x" ]
881 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
882 elif [ "x${actual}" = "x-" ]
884 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
886 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
896 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
899 /* Mechanism for co-ordinating the selection of a specific
902 GDB targets (*-tdep.c) can register an interest in a specific
903 architecture. Other GDB components can register a need to maintain
904 per-architecture data.
906 The mechanisms below ensures that there is only a loose connection
907 between the set-architecture command and the various GDB
908 components. Each component can independently register their need
909 to maintain architecture specific data with gdbarch.
913 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
916 The more traditional mega-struct containing architecture specific
917 data for all the various GDB components was also considered. Since
918 GDB is built from a variable number of (fairly independent)
919 components it was determined that the global aproach was not
923 /* Register a new architectural family with GDB.
925 Register support for the specified ARCHITECTURE with GDB. When
926 gdbarch determines that the specified architecture has been
927 selected, the corresponding INIT function is called.
931 The INIT function takes two parameters: INFO which contains the
932 information available to gdbarch about the (possibly new)
933 architecture; ARCHES which is a list of the previously created
934 \`\`struct gdbarch'' for this architecture.
936 The INFO parameter is, as far as possible, be pre-initialized with
937 information obtained from INFO.ABFD or the global defaults.
939 The ARCHES parameter is a linked list (sorted most recently used)
940 of all the previously created architures for this architecture
941 family. The (possibly NULL) ARCHES->gdbarch can used to access
942 values from the previously selected architecture for this
943 architecture family. The global \`\`current_gdbarch'' shall not be
946 The INIT function shall return any of: NULL - indicating that it
947 doesn't recognize the selected architecture; an existing \`\`struct
948 gdbarch'' from the ARCHES list - indicating that the new
949 architecture is just a synonym for an earlier architecture (see
950 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
951 - that describes the selected architecture (see gdbarch_alloc()).
953 The DUMP_TDEP function shall print out all target specific values.
954 Care should be taken to ensure that the function works in both the
955 multi-arch and non- multi-arch cases. */
959 struct gdbarch *gdbarch;
960 struct gdbarch_list *next;
965 /* Use default: NULL (ZERO). */
966 const struct bfd_arch_info *bfd_arch_info;
968 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
971 /* Use default: NULL (ZERO). */
974 /* Use default: NULL (ZERO). */
975 struct gdbarch_tdep_info *tdep_info;
977 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
978 enum gdb_osabi osabi;
980 /* Use default: NULL (ZERO). */
981 const struct target_desc *target_desc;
984 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
985 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
987 /* DEPRECATED - use gdbarch_register() */
988 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
990 extern void gdbarch_register (enum bfd_architecture architecture,
991 gdbarch_init_ftype *,
992 gdbarch_dump_tdep_ftype *);
995 /* Return a freshly allocated, NULL terminated, array of the valid
996 architecture names. Since architectures are registered during the
997 _initialize phase this function only returns useful information
998 once initialization has been completed. */
1000 extern const char **gdbarch_printable_names (void);
1003 /* Helper function. Search the list of ARCHES for a GDBARCH that
1004 matches the information provided by INFO. */
1006 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
1009 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
1010 basic initialization using values obtained from the INFO and TDEP
1011 parameters. set_gdbarch_*() functions are called to complete the
1012 initialization of the object. */
1014 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1017 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1018 It is assumed that the caller freeds the \`\`struct
1021 extern void gdbarch_free (struct gdbarch *);
1024 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1025 obstack. The memory is freed when the corresponding architecture
1028 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1029 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1030 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1033 /* Helper function. Force an update of the current architecture.
1035 The actual architecture selected is determined by INFO, \`\`(gdb) set
1036 architecture'' et.al., the existing architecture and BFD's default
1037 architecture. INFO should be initialized to zero and then selected
1038 fields should be updated.
1040 Returns non-zero if the update succeeds */
1042 extern int gdbarch_update_p (struct gdbarch_info info);
1045 /* Helper function. Find an architecture matching info.
1047 INFO should be initialized using gdbarch_info_init, relevant fields
1048 set, and then finished using gdbarch_info_fill.
1050 Returns the corresponding architecture, or NULL if no matching
1051 architecture was found. "current_gdbarch" is not updated. */
1053 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1056 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1058 FIXME: kettenis/20031124: Of the functions that follow, only
1059 gdbarch_from_bfd is supposed to survive. The others will
1060 dissappear since in the future GDB will (hopefully) be truly
1061 multi-arch. However, for now we're still stuck with the concept of
1062 a single active architecture. */
1064 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1067 /* Register per-architecture data-pointer.
1069 Reserve space for a per-architecture data-pointer. An identifier
1070 for the reserved data-pointer is returned. That identifer should
1071 be saved in a local static variable.
1073 Memory for the per-architecture data shall be allocated using
1074 gdbarch_obstack_zalloc. That memory will be deleted when the
1075 corresponding architecture object is deleted.
1077 When a previously created architecture is re-selected, the
1078 per-architecture data-pointer for that previous architecture is
1079 restored. INIT() is not re-called.
1081 Multiple registrarants for any architecture are allowed (and
1082 strongly encouraged). */
1084 struct gdbarch_data;
1086 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1087 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1088 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1089 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1090 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1091 struct gdbarch_data *data,
1094 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1097 /* Set the dynamic target-system-dependent parameters (architecture,
1098 byte-order, ...) using information found in the BFD */
1100 extern void set_gdbarch_from_file (bfd *);
1103 /* Initialize the current architecture to the "first" one we find on
1106 extern void initialize_current_architecture (void);
1108 /* gdbarch trace variable */
1109 extern int gdbarch_debug;
1111 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1116 #../move-if-change new-gdbarch.h gdbarch.h
1117 compare_new gdbarch.h
1124 exec > new-gdbarch.c
1129 #include "arch-utils.h"
1132 #include "inferior.h"
1135 #include "floatformat.h"
1137 #include "gdb_assert.h"
1138 #include "gdb_string.h"
1139 #include "gdb-events.h"
1140 #include "reggroups.h"
1142 #include "gdb_obstack.h"
1144 /* Static function declarations */
1146 static void alloc_gdbarch_data (struct gdbarch *);
1148 /* Non-zero if we want to trace architecture code. */
1150 #ifndef GDBARCH_DEBUG
1151 #define GDBARCH_DEBUG 0
1153 int gdbarch_debug = GDBARCH_DEBUG;
1155 show_gdbarch_debug (struct ui_file *file, int from_tty,
1156 struct cmd_list_element *c, const char *value)
1158 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1162 pformat (const struct floatformat **format)
1167 /* Just print out one of them - this is only for diagnostics. */
1168 return format[0]->name;
1173 # gdbarch open the gdbarch object
1175 printf "/* Maintain the struct gdbarch object */\n"
1177 printf "struct gdbarch\n"
1179 printf " /* Has this architecture been fully initialized? */\n"
1180 printf " int initialized_p;\n"
1182 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1183 printf " struct obstack *obstack;\n"
1185 printf " /* basic architectural information */\n"
1186 function_list |
while do_read
1190 printf " ${returntype} ${function};\n"
1194 printf " /* target specific vector. */\n"
1195 printf " struct gdbarch_tdep *tdep;\n"
1196 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1198 printf " /* per-architecture data-pointers */\n"
1199 printf " unsigned nr_data;\n"
1200 printf " void **data;\n"
1202 printf " /* per-architecture swap-regions */\n"
1203 printf " struct gdbarch_swap *swap;\n"
1206 /* Multi-arch values.
1208 When extending this structure you must:
1210 Add the field below.
1212 Declare set/get functions and define the corresponding
1215 gdbarch_alloc(): If zero/NULL is not a suitable default,
1216 initialize the new field.
1218 verify_gdbarch(): Confirm that the target updated the field
1221 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1224 \`\`startup_gdbarch()'': Append an initial value to the static
1225 variable (base values on the host's c-type system).
1227 get_gdbarch(): Implement the set/get functions (probably using
1228 the macro's as shortcuts).
1233 function_list |
while do_read
1235 if class_is_variable_p
1237 printf " ${returntype} ${function};\n"
1238 elif class_is_function_p
1240 printf " gdbarch_${function}_ftype *${function};\n"
1245 # A pre-initialized vector
1249 /* The default architecture uses host values (for want of a better
1253 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1255 printf "struct gdbarch startup_gdbarch =\n"
1257 printf " 1, /* Always initialized. */\n"
1258 printf " NULL, /* The obstack. */\n"
1259 printf " /* basic architecture information */\n"
1260 function_list |
while do_read
1264 printf " ${staticdefault}, /* ${function} */\n"
1268 /* target specific vector and its dump routine */
1270 /*per-architecture data-pointers and swap regions */
1272 /* Multi-arch values */
1274 function_list |
while do_read
1276 if class_is_function_p || class_is_variable_p
1278 printf " ${staticdefault}, /* ${function} */\n"
1282 /* startup_gdbarch() */
1285 struct gdbarch *current_gdbarch = &startup_gdbarch;
1288 # Create a new gdbarch struct
1291 /* Create a new \`\`struct gdbarch'' based on information provided by
1292 \`\`struct gdbarch_info''. */
1297 gdbarch_alloc (const struct gdbarch_info *info,
1298 struct gdbarch_tdep *tdep)
1300 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1301 so that macros such as TARGET_ARCHITECTURE, when expanded, refer to
1302 the current local architecture and not the previous global
1303 architecture. This ensures that the new architectures initial
1304 values are not influenced by the previous architecture. Once
1305 everything is parameterised with gdbarch, this will go away. */
1306 struct gdbarch *current_gdbarch;
1308 /* Create an obstack for allocating all the per-architecture memory,
1309 then use that to allocate the architecture vector. */
1310 struct obstack *obstack = XMALLOC (struct obstack);
1311 obstack_init (obstack);
1312 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1313 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1314 current_gdbarch->obstack = obstack;
1316 alloc_gdbarch_data (current_gdbarch);
1318 current_gdbarch->tdep = tdep;
1321 function_list |
while do_read
1325 printf " current_gdbarch->${function} = info->${function};\n"
1329 printf " /* Force the explicit initialization of these. */\n"
1330 function_list |
while do_read
1332 if class_is_function_p || class_is_variable_p
1334 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1336 printf " current_gdbarch->${function} = ${predefault};\n"
1341 /* gdbarch_alloc() */
1343 return current_gdbarch;
1347 # Free a gdbarch struct.
1351 /* Allocate extra space using the per-architecture obstack. */
1354 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1356 void *data = obstack_alloc (arch->obstack, size);
1357 memset (data, 0, size);
1362 /* Free a gdbarch struct. This should never happen in normal
1363 operation --- once you've created a gdbarch, you keep it around.
1364 However, if an architecture's init function encounters an error
1365 building the structure, it may need to clean up a partially
1366 constructed gdbarch. */
1369 gdbarch_free (struct gdbarch *arch)
1371 struct obstack *obstack;
1372 gdb_assert (arch != NULL);
1373 gdb_assert (!arch->initialized_p);
1374 obstack = arch->obstack;
1375 obstack_free (obstack, 0); /* Includes the ARCH. */
1380 # verify a new architecture
1384 /* Ensure that all values in a GDBARCH are reasonable. */
1386 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1387 just happens to match the global variable \`\`current_gdbarch''. That
1388 way macros refering to that variable get the local and not the global
1389 version - ulgh. Once everything is parameterised with gdbarch, this
1393 verify_gdbarch (struct gdbarch *current_gdbarch)
1395 struct ui_file *log;
1396 struct cleanup *cleanups;
1399 log = mem_fileopen ();
1400 cleanups = make_cleanup_ui_file_delete (log);
1402 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1403 fprintf_unfiltered (log, "\n\tbyte-order");
1404 if (current_gdbarch->bfd_arch_info == NULL)
1405 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1406 /* Check those that need to be defined for the given multi-arch level. */
1408 function_list |
while do_read
1410 if class_is_function_p || class_is_variable_p
1412 if [ "x${invalid_p}" = "x0" ]
1414 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1415 elif class_is_predicate_p
1417 printf " /* Skip verify of ${function}, has predicate */\n"
1418 # FIXME: See do_read for potential simplification
1419 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1421 printf " if (${invalid_p})\n"
1422 printf " current_gdbarch->${function} = ${postdefault};\n"
1423 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1425 printf " if (current_gdbarch->${function} == ${predefault})\n"
1426 printf " current_gdbarch->${function} = ${postdefault};\n"
1427 elif [ -n "${postdefault}" ]
1429 printf " if (current_gdbarch->${function} == 0)\n"
1430 printf " current_gdbarch->${function} = ${postdefault};\n"
1431 elif [ -n "${invalid_p}" ]
1433 printf " if (${invalid_p})\n"
1434 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1435 elif [ -n "${predefault}" ]
1437 printf " if (current_gdbarch->${function} == ${predefault})\n"
1438 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1443 buf = ui_file_xstrdup (log, &dummy);
1444 make_cleanup (xfree, buf);
1445 if (strlen (buf) > 0)
1446 internal_error (__FILE__, __LINE__,
1447 _("verify_gdbarch: the following are invalid ...%s"),
1449 do_cleanups (cleanups);
1453 # dump the structure
1457 /* Print out the details of the current architecture. */
1459 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1460 just happens to match the global variable \`\`current_gdbarch''. That
1461 way macros refering to that variable get the local and not the global
1462 version - ulgh. Once everything is parameterised with gdbarch, this
1466 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1468 const char *gdb_xm_file = "<not-defined>";
1469 const char *gdb_nm_file = "<not-defined>";
1470 const char *gdb_tm_file = "<not-defined>";
1471 #if defined (GDB_XM_FILE)
1472 gdb_xm_file = GDB_XM_FILE;
1474 fprintf_unfiltered (file,
1475 "gdbarch_dump: GDB_XM_FILE = %s\\n",
1477 #if defined (GDB_NM_FILE)
1478 gdb_nm_file = GDB_NM_FILE;
1480 fprintf_unfiltered (file,
1481 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1483 #if defined (GDB_TM_FILE)
1484 gdb_tm_file = GDB_TM_FILE;
1486 fprintf_unfiltered (file,
1487 "gdbarch_dump: GDB_TM_FILE = %s\\n",
1490 function_list |
sort -t: -k 4 |
while do_read
1492 # First the predicate
1493 if class_is_predicate_p
1495 if test -n "${macro}"
1497 printf "#ifdef ${macro}_P\n"
1498 printf " fprintf_unfiltered (file,\n"
1499 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1500 printf " \"${macro}_P()\",\n"
1501 printf " XSTRING (${macro}_P ()));\n"
1504 printf " fprintf_unfiltered (file,\n"
1505 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1506 printf " gdbarch_${function}_p (current_gdbarch));\n"
1508 # Print the macro definition.
1509 if test -n "${macro}"
1511 printf "#ifdef ${macro}\n"
1512 if class_is_function_p
1514 printf " fprintf_unfiltered (file,\n"
1515 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1516 printf " \"${macro}(${actual})\",\n"
1517 printf " XSTRING (${macro} (${actual})));\n"
1519 printf " fprintf_unfiltered (file,\n"
1520 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1521 printf " XSTRING (${macro}));\n"
1525 # Print the corresponding value.
1526 if class_is_function_p
1528 printf " fprintf_unfiltered (file,\n"
1529 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1530 printf " (long) current_gdbarch->${function});\n"
1533 case "${print}:${returntype}" in
1536 print
="paddr_nz (current_gdbarch->${function})"
1540 print
="paddr_d (current_gdbarch->${function})"
1546 printf " fprintf_unfiltered (file,\n"
1547 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1548 printf " ${print});\n"
1552 if (current_gdbarch->dump_tdep != NULL)
1553 current_gdbarch->dump_tdep (current_gdbarch, file);
1561 struct gdbarch_tdep *
1562 gdbarch_tdep (struct gdbarch *gdbarch)
1564 if (gdbarch_debug >= 2)
1565 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1566 return gdbarch->tdep;
1570 function_list |
while do_read
1572 if class_is_predicate_p
1576 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1578 printf " gdb_assert (gdbarch != NULL);\n"
1579 printf " return ${predicate};\n"
1582 if class_is_function_p
1585 printf "${returntype}\n"
1586 if [ "x${formal}" = "xvoid" ]
1588 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1590 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1593 printf " gdb_assert (gdbarch != NULL);\n"
1594 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1595 if class_is_predicate_p
&& test -n "${predefault}"
1597 # Allow a call to a function with a predicate.
1598 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1600 printf " if (gdbarch_debug >= 2)\n"
1601 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1602 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1604 if class_is_multiarch_p
1611 if class_is_multiarch_p
1613 params
="gdbarch, ${actual}"
1618 if [ "x${returntype}" = "xvoid" ]
1620 printf " gdbarch->${function} (${params});\n"
1622 printf " return gdbarch->${function} (${params});\n"
1627 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1628 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1630 printf " gdbarch->${function} = ${function};\n"
1632 elif class_is_variable_p
1635 printf "${returntype}\n"
1636 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1638 printf " gdb_assert (gdbarch != NULL);\n"
1639 if [ "x${invalid_p}" = "x0" ]
1641 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1642 elif [ -n "${invalid_p}" ]
1644 printf " /* Check variable is valid. */\n"
1645 printf " gdb_assert (!(${invalid_p}));\n"
1646 elif [ -n "${predefault}" ]
1648 printf " /* Check variable changed from pre-default. */\n"
1649 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1651 printf " if (gdbarch_debug >= 2)\n"
1652 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1653 printf " return gdbarch->${function};\n"
1657 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1658 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1660 printf " gdbarch->${function} = ${function};\n"
1662 elif class_is_info_p
1665 printf "${returntype}\n"
1666 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1668 printf " gdb_assert (gdbarch != NULL);\n"
1669 printf " if (gdbarch_debug >= 2)\n"
1670 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1671 printf " return gdbarch->${function};\n"
1676 # All the trailing guff
1680 /* Keep a registry of per-architecture data-pointers required by GDB
1687 gdbarch_data_pre_init_ftype *pre_init;
1688 gdbarch_data_post_init_ftype *post_init;
1691 struct gdbarch_data_registration
1693 struct gdbarch_data *data;
1694 struct gdbarch_data_registration *next;
1697 struct gdbarch_data_registry
1700 struct gdbarch_data_registration *registrations;
1703 struct gdbarch_data_registry gdbarch_data_registry =
1708 static struct gdbarch_data *
1709 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1710 gdbarch_data_post_init_ftype *post_init)
1712 struct gdbarch_data_registration **curr;
1713 /* Append the new registraration. */
1714 for (curr = &gdbarch_data_registry.registrations;
1716 curr = &(*curr)->next);
1717 (*curr) = XMALLOC (struct gdbarch_data_registration);
1718 (*curr)->next = NULL;
1719 (*curr)->data = XMALLOC (struct gdbarch_data);
1720 (*curr)->data->index = gdbarch_data_registry.nr++;
1721 (*curr)->data->pre_init = pre_init;
1722 (*curr)->data->post_init = post_init;
1723 (*curr)->data->init_p = 1;
1724 return (*curr)->data;
1727 struct gdbarch_data *
1728 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1730 return gdbarch_data_register (pre_init, NULL);
1733 struct gdbarch_data *
1734 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1736 return gdbarch_data_register (NULL, post_init);
1739 /* Create/delete the gdbarch data vector. */
1742 alloc_gdbarch_data (struct gdbarch *gdbarch)
1744 gdb_assert (gdbarch->data == NULL);
1745 gdbarch->nr_data = gdbarch_data_registry.nr;
1746 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1749 /* Initialize the current value of the specified per-architecture
1753 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1754 struct gdbarch_data *data,
1757 gdb_assert (data->index < gdbarch->nr_data);
1758 gdb_assert (gdbarch->data[data->index] == NULL);
1759 gdb_assert (data->pre_init == NULL);
1760 gdbarch->data[data->index] = pointer;
1763 /* Return the current value of the specified per-architecture
1767 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1769 gdb_assert (data->index < gdbarch->nr_data);
1770 if (gdbarch->data[data->index] == NULL)
1772 /* The data-pointer isn't initialized, call init() to get a
1774 if (data->pre_init != NULL)
1775 /* Mid architecture creation: pass just the obstack, and not
1776 the entire architecture, as that way it isn't possible for
1777 pre-init code to refer to undefined architecture
1779 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1780 else if (gdbarch->initialized_p
1781 && data->post_init != NULL)
1782 /* Post architecture creation: pass the entire architecture
1783 (as all fields are valid), but be careful to also detect
1784 recursive references. */
1786 gdb_assert (data->init_p);
1788 gdbarch->data[data->index] = data->post_init (gdbarch);
1792 /* The architecture initialization hasn't completed - punt -
1793 hope that the caller knows what they are doing. Once
1794 deprecated_set_gdbarch_data has been initialized, this can be
1795 changed to an internal error. */
1797 gdb_assert (gdbarch->data[data->index] != NULL);
1799 return gdbarch->data[data->index];
1803 /* Keep a registry of the architectures known by GDB. */
1805 struct gdbarch_registration
1807 enum bfd_architecture bfd_architecture;
1808 gdbarch_init_ftype *init;
1809 gdbarch_dump_tdep_ftype *dump_tdep;
1810 struct gdbarch_list *arches;
1811 struct gdbarch_registration *next;
1814 static struct gdbarch_registration *gdbarch_registry = NULL;
1817 append_name (const char ***buf, int *nr, const char *name)
1819 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1825 gdbarch_printable_names (void)
1827 /* Accumulate a list of names based on the registed list of
1829 enum bfd_architecture a;
1831 const char **arches = NULL;
1832 struct gdbarch_registration *rego;
1833 for (rego = gdbarch_registry;
1837 const struct bfd_arch_info *ap;
1838 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1840 internal_error (__FILE__, __LINE__,
1841 _("gdbarch_architecture_names: multi-arch unknown"));
1844 append_name (&arches, &nr_arches, ap->printable_name);
1849 append_name (&arches, &nr_arches, NULL);
1855 gdbarch_register (enum bfd_architecture bfd_architecture,
1856 gdbarch_init_ftype *init,
1857 gdbarch_dump_tdep_ftype *dump_tdep)
1859 struct gdbarch_registration **curr;
1860 const struct bfd_arch_info *bfd_arch_info;
1861 /* Check that BFD recognizes this architecture */
1862 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1863 if (bfd_arch_info == NULL)
1865 internal_error (__FILE__, __LINE__,
1866 _("gdbarch: Attempt to register unknown architecture (%d)"),
1869 /* Check that we haven't seen this architecture before */
1870 for (curr = &gdbarch_registry;
1872 curr = &(*curr)->next)
1874 if (bfd_architecture == (*curr)->bfd_architecture)
1875 internal_error (__FILE__, __LINE__,
1876 _("gdbarch: Duplicate registraration of architecture (%s)"),
1877 bfd_arch_info->printable_name);
1881 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1882 bfd_arch_info->printable_name,
1885 (*curr) = XMALLOC (struct gdbarch_registration);
1886 (*curr)->bfd_architecture = bfd_architecture;
1887 (*curr)->init = init;
1888 (*curr)->dump_tdep = dump_tdep;
1889 (*curr)->arches = NULL;
1890 (*curr)->next = NULL;
1894 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1895 gdbarch_init_ftype *init)
1897 gdbarch_register (bfd_architecture, init, NULL);
1901 /* Look for an architecture using gdbarch_info. */
1903 struct gdbarch_list *
1904 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1905 const struct gdbarch_info *info)
1907 for (; arches != NULL; arches = arches->next)
1909 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1911 if (info->byte_order != arches->gdbarch->byte_order)
1913 if (info->osabi != arches->gdbarch->osabi)
1915 if (info->target_desc != arches->gdbarch->target_desc)
1923 /* Find an architecture that matches the specified INFO. Create a new
1924 architecture if needed. Return that new architecture. Assumes
1925 that there is no current architecture. */
1927 static struct gdbarch *
1928 find_arch_by_info (struct gdbarch_info info)
1930 struct gdbarch *new_gdbarch;
1931 struct gdbarch_registration *rego;
1933 /* The existing architecture has been swapped out - all this code
1934 works from a clean slate. */
1935 gdb_assert (current_gdbarch == NULL);
1937 /* Fill in missing parts of the INFO struct using a number of
1938 sources: "set ..."; INFOabfd supplied; and the global
1940 gdbarch_info_fill (&info);
1942 /* Must have found some sort of architecture. */
1943 gdb_assert (info.bfd_arch_info != NULL);
1947 fprintf_unfiltered (gdb_stdlog,
1948 "find_arch_by_info: info.bfd_arch_info %s\n",
1949 (info.bfd_arch_info != NULL
1950 ? info.bfd_arch_info->printable_name
1952 fprintf_unfiltered (gdb_stdlog,
1953 "find_arch_by_info: info.byte_order %d (%s)\n",
1955 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1956 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1958 fprintf_unfiltered (gdb_stdlog,
1959 "find_arch_by_info: info.osabi %d (%s)\n",
1960 info.osabi, gdbarch_osabi_name (info.osabi));
1961 fprintf_unfiltered (gdb_stdlog,
1962 "find_arch_by_info: info.abfd 0x%lx\n",
1964 fprintf_unfiltered (gdb_stdlog,
1965 "find_arch_by_info: info.tdep_info 0x%lx\n",
1966 (long) info.tdep_info);
1969 /* Find the tdep code that knows about this architecture. */
1970 for (rego = gdbarch_registry;
1973 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1978 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1979 "No matching architecture\n");
1983 /* Ask the tdep code for an architecture that matches "info". */
1984 new_gdbarch = rego->init (info, rego->arches);
1986 /* Did the tdep code like it? No. Reject the change and revert to
1987 the old architecture. */
1988 if (new_gdbarch == NULL)
1991 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1992 "Target rejected architecture\n");
1996 /* Is this a pre-existing architecture (as determined by already
1997 being initialized)? Move it to the front of the architecture
1998 list (keeping the list sorted Most Recently Used). */
1999 if (new_gdbarch->initialized_p)
2001 struct gdbarch_list **list;
2002 struct gdbarch_list *this;
2004 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2005 "Previous architecture 0x%08lx (%s) selected\n",
2007 new_gdbarch->bfd_arch_info->printable_name);
2008 /* Find the existing arch in the list. */
2009 for (list = ®o->arches;
2010 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2011 list = &(*list)->next);
2012 /* It had better be in the list of architectures. */
2013 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2016 (*list) = this->next;
2017 /* Insert THIS at the front. */
2018 this->next = rego->arches;
2019 rego->arches = this;
2024 /* It's a new architecture. */
2026 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2027 "New architecture 0x%08lx (%s) selected\n",
2029 new_gdbarch->bfd_arch_info->printable_name);
2031 /* Insert the new architecture into the front of the architecture
2032 list (keep the list sorted Most Recently Used). */
2034 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2035 this->next = rego->arches;
2036 this->gdbarch = new_gdbarch;
2037 rego->arches = this;
2040 /* Check that the newly installed architecture is valid. Plug in
2041 any post init values. */
2042 new_gdbarch->dump_tdep = rego->dump_tdep;
2043 verify_gdbarch (new_gdbarch);
2044 new_gdbarch->initialized_p = 1;
2047 gdbarch_dump (new_gdbarch, gdb_stdlog);
2053 gdbarch_find_by_info (struct gdbarch_info info)
2055 struct gdbarch *new_gdbarch;
2057 /* Save the previously selected architecture, setting the global to
2058 NULL. This stops things like gdbarch->init() trying to use the
2059 previous architecture's configuration. The previous architecture
2060 may not even be of the same architecture family. The most recent
2061 architecture of the same family is found at the head of the
2062 rego->arches list. */
2063 struct gdbarch *old_gdbarch = current_gdbarch;
2064 current_gdbarch = NULL;
2066 /* Find the specified architecture. */
2067 new_gdbarch = find_arch_by_info (info);
2069 /* Restore the existing architecture. */
2070 gdb_assert (current_gdbarch == NULL);
2071 current_gdbarch = old_gdbarch;
2076 /* Make the specified architecture current. */
2079 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2081 gdb_assert (new_gdbarch != NULL);
2082 gdb_assert (current_gdbarch != NULL);
2083 gdb_assert (new_gdbarch->initialized_p);
2084 current_gdbarch = new_gdbarch;
2085 architecture_changed_event ();
2086 reinit_frame_cache ();
2089 extern void _initialize_gdbarch (void);
2092 _initialize_gdbarch (void)
2094 struct cmd_list_element *c;
2096 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2097 Set architecture debugging."), _("\\
2098 Show architecture debugging."), _("\\
2099 When non-zero, architecture debugging is enabled."),
2102 &setdebuglist, &showdebuglist);
2108 #../move-if-change new-gdbarch.c gdbarch.c
2109 compare_new gdbarch.c