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 # DEPRECATED_REGISTER_SIZE can be deleted.
471 v:=:int:deprecated_register_size
472 v::int:call_dummy_location::::AT_ENTRY_POINT::0
473 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
475 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
476 M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
477 M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
478 # MAP a GDB RAW register number onto a simulator register number. See
479 # also include/...-sim.h.
480 f::int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
481 f::int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
482 f::int:cannot_store_register:int regnum:regnum::cannot_register_not::0
483 # setjmp/longjmp support.
484 F::int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
486 v:=:int:believe_pcc_promotion:::::::
488 f::int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
489 f::void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
490 f::void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
491 # Construct a value representing the contents of register REGNUM in
492 # frame FRAME, interpreted as type TYPE. The routine needs to
493 # allocate and return a struct value with all value attributes
494 # (but not the value contents) filled in.
495 f::struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
497 f::CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
498 f::void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
499 M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
501 # It has been suggested that this, well actually its predecessor,
502 # should take the type/value of the function to be called and not the
503 # return type. This is left as an exercise for the reader.
505 # NOTE: cagney/2004-06-13: The function stack.c:return_command uses
506 # the predicate with default hack to avoid calling STORE_RETURN_VALUE
507 # (via legacy_return_value), when a small struct is involved.
509 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
511 # The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
512 # DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
513 # DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
516 f:=:void:extract_return_value:struct type *type, struct regcache *regcache, gdb_byte *valbuf:type, regcache, valbuf:0
517 f:=:void:store_return_value:struct type *type, struct regcache *regcache, const gdb_byte *valbuf:type, regcache, valbuf:0
518 f:=:int:deprecated_use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::generic_use_struct_convention::0
520 f::CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
521 f::int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
522 f::const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
523 M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
524 f::int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
525 f::int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
526 v::CORE_ADDR:decr_pc_after_break:::0:::0
528 # A function can be addressed by either it's "pointer" (possibly a
529 # descriptor address) or "entry point" (first executable instruction).
530 # The method "convert_from_func_ptr_addr" converting the former to the
531 # latter. DEPRECATED_FUNCTION_START_OFFSET is being used to implement
532 # a simplified subset of that functionality - the function's address
533 # corresponds to the "function pointer" and the function's start
534 # corresponds to the "function entry point" - and hence is redundant.
536 v:=:CORE_ADDR:deprecated_function_start_offset:::0:::0
538 # Return the remote protocol register number associated with this
539 # register. Normally the identity mapping.
540 m::int:remote_register_number:int regno:regno::default_remote_register_number::0
542 # Fetch the target specific address used to represent a load module.
543 F::CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
545 v::CORE_ADDR:frame_args_skip:::0:::0
546 M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
547 M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
548 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
549 # frame-base. Enable frame-base before frame-unwind.
550 F::int:frame_num_args:struct frame_info *frame:frame
552 M::CORE_ADDR:frame_align:CORE_ADDR address:address
553 # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
554 # stabs_argument_has_addr.
555 F:=:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type
556 m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
557 v::int:frame_red_zone_size
559 m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
560 # On some machines there are bits in addresses which are not really
561 # part of the address, but are used by the kernel, the hardware, etc.
562 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
563 # we get a "real" address such as one would find in a symbol table.
564 # This is used only for addresses of instructions, and even then I'm
565 # not sure it's used in all contexts. It exists to deal with there
566 # being a few stray bits in the PC which would mislead us, not as some
567 # sort of generic thing to handle alignment or segmentation (it's
568 # possible it should be in TARGET_READ_PC instead).
569 f::CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
570 # It is not at all clear why gdbarch_smash_text_address is not folded into
571 # gdbarch_addr_bits_remove.
572 f::CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
574 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
575 # indicates if the target needs software single step. An ISA method to
578 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
579 # breakpoints using the breakpoint system instead of blatting memory directly
582 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
583 # target can single step. If not, then implement single step using breakpoints.
585 # A return value of 1 means that the software_single_step breakpoints
586 # were inserted; 0 means they were not.
587 F:=:int:software_single_step:struct frame_info *frame:frame
589 # Return non-zero if the processor is executing a delay slot and a
590 # further single-step is needed before the instruction finishes.
591 M::int:single_step_through_delay:struct frame_info *frame:frame
592 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
593 # disassembler. Perhaps objdump can handle it?
594 f:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
595 f::CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
598 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
599 # evaluates non-zero, this is the address where the debugger will place
600 # a step-resume breakpoint to get us past the dynamic linker.
601 m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
602 # Some systems also have trampoline code for returning from shared libs.
603 f::int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
605 # A target might have problems with watchpoints as soon as the stack
606 # frame of the current function has been destroyed. This mostly happens
607 # as the first action in a funtion's epilogue. in_function_epilogue_p()
608 # is defined to return a non-zero value if either the given addr is one
609 # instruction after the stack destroying instruction up to the trailing
610 # return instruction or if we can figure out that the stack frame has
611 # already been invalidated regardless of the value of addr. Targets
612 # which don't suffer from that problem could just let this functionality
614 m::int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
615 # Given a vector of command-line arguments, return a newly allocated
616 # string which, when passed to the create_inferior function, will be
617 # parsed (on Unix systems, by the shell) to yield the same vector.
618 # This function should call error() if the argument vector is not
619 # representable for this target or if this target does not support
620 # command-line arguments.
621 # ARGC is the number of elements in the vector.
622 # ARGV is an array of strings, one per argument.
623 m::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
624 f::void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
625 f::void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
626 v::const char *:name_of_malloc:::"malloc":"malloc"::0:current_gdbarch->name_of_malloc
627 v::int:cannot_step_breakpoint:::0:0::0
628 v::int:have_nonsteppable_watchpoint:::0:0::0
629 F::int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
630 M::const char *:address_class_type_flags_to_name:int type_flags:type_flags
631 M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
632 # Is a register in a group
633 m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
634 # Fetch the pointer to the ith function argument.
635 F::CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
637 # Return the appropriate register set for a core file section with
638 # name SECT_NAME and size SECT_SIZE.
639 M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
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
661 exec > new-gdbarch.log
662 function_list | while do_read
665 ${class} ${returntype} ${function} ($formal)
669 eval echo \"\ \ \ \ ${r}=\${${r}}\"
671 if class_is_predicate_p && fallback_default_p
673 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
677 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
679 echo "Error: postdefault is useless when invalid_p=0" 1>&2
683 if class_is_multiarch_p
685 if class_is_predicate_p ; then :
686 elif test "x${predefault}" = "x"
688 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
697 compare_new gdbarch.log
703 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
705 /* Dynamic architecture support for GDB, the GNU debugger.
707 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
708 Free Software Foundation, Inc.
710 This file is part of GDB.
712 This program is free software; you can redistribute it and/or modify
713 it under the terms of the GNU General Public License as published by
714 the Free Software Foundation; either version 2 of the License, or
715 (at your option) any later version.
717 This program is distributed in the hope that it will be useful,
718 but WITHOUT ANY WARRANTY; without even the implied warranty of
719 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
720 GNU General Public License for more details.
722 You should have received a copy of the GNU General Public License
723 along with this program; if not, write to the Free Software
724 Foundation, Inc., 51 Franklin Street, Fifth Floor,
725 Boston, MA 02110-1301, USA. */
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 *);
1100 /* Register per-architecture memory region.
1102 Provide a memory-region swap mechanism. Per-architecture memory
1103 region are created. These memory regions are swapped whenever the
1104 architecture is changed. For a new architecture, the memory region
1105 is initialized with zero (0) and the INIT function is called.
1107 Memory regions are swapped / initialized in the order that they are
1108 registered. NULL DATA and/or INIT values can be specified.
1110 New code should use gdbarch_data_register_*(). */
1112 typedef void (gdbarch_swap_ftype) (void);
1113 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1114 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1118 /* Set the dynamic target-system-dependent parameters (architecture,
1119 byte-order, ...) using information found in the BFD */
1121 extern void set_gdbarch_from_file (bfd *);
1124 /* Initialize the current architecture to the "first" one we find on
1127 extern void initialize_current_architecture (void);
1129 /* gdbarch trace variable */
1130 extern int gdbarch_debug;
1132 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1137 #../move-if-change new-gdbarch.h gdbarch.h
1138 compare_new gdbarch.h
1145 exec > new-gdbarch.c
1150 #include "arch-utils.h"
1153 #include "inferior.h"
1156 #include "floatformat.h"
1158 #include "gdb_assert.h"
1159 #include "gdb_string.h"
1160 #include "gdb-events.h"
1161 #include "reggroups.h"
1163 #include "gdb_obstack.h"
1165 /* Static function declarations */
1167 static void alloc_gdbarch_data (struct gdbarch *);
1169 /* Non-zero if we want to trace architecture code. */
1171 #ifndef GDBARCH_DEBUG
1172 #define GDBARCH_DEBUG 0
1174 int gdbarch_debug = GDBARCH_DEBUG;
1176 show_gdbarch_debug (struct ui_file *file, int from_tty,
1177 struct cmd_list_element *c, const char *value)
1179 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1183 pformat (const struct floatformat **format)
1188 /* Just print out one of them - this is only for diagnostics. */
1189 return format[0]->name;
1194 # gdbarch open the gdbarch object
1196 printf "/* Maintain the struct gdbarch object */\n"
1198 printf "struct gdbarch\n"
1200 printf " /* Has this architecture been fully initialized? */\n"
1201 printf " int initialized_p;\n"
1203 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1204 printf " struct obstack *obstack;\n"
1206 printf " /* basic architectural information */\n"
1207 function_list | while do_read
1211 printf " ${returntype} ${function};\n"
1215 printf " /* target specific vector. */\n"
1216 printf " struct gdbarch_tdep *tdep;\n"
1217 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1219 printf " /* per-architecture data-pointers */\n"
1220 printf " unsigned nr_data;\n"
1221 printf " void **data;\n"
1223 printf " /* per-architecture swap-regions */\n"
1224 printf " struct gdbarch_swap *swap;\n"
1227 /* Multi-arch values.
1229 When extending this structure you must:
1231 Add the field below.
1233 Declare set/get functions and define the corresponding
1236 gdbarch_alloc(): If zero/NULL is not a suitable default,
1237 initialize the new field.
1239 verify_gdbarch(): Confirm that the target updated the field
1242 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1245 \`\`startup_gdbarch()'': Append an initial value to the static
1246 variable (base values on the host's c-type system).
1248 get_gdbarch(): Implement the set/get functions (probably using
1249 the macro's as shortcuts).
1254 function_list | while do_read
1256 if class_is_variable_p
1258 printf " ${returntype} ${function};\n"
1259 elif class_is_function_p
1261 printf " gdbarch_${function}_ftype *${function};\n"
1266 # A pre-initialized vector
1270 /* The default architecture uses host values (for want of a better
1274 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1276 printf "struct gdbarch startup_gdbarch =\n"
1278 printf " 1, /* Always initialized. */\n"
1279 printf " NULL, /* The obstack. */\n"
1280 printf " /* basic architecture information */\n"
1281 function_list | while do_read
1285 printf " ${staticdefault}, /* ${function} */\n"
1289 /* target specific vector and its dump routine */
1291 /*per-architecture data-pointers and swap regions */
1293 /* Multi-arch values */
1295 function_list | while do_read
1297 if class_is_function_p || class_is_variable_p
1299 printf " ${staticdefault}, /* ${function} */\n"
1303 /* startup_gdbarch() */
1306 struct gdbarch *current_gdbarch = &startup_gdbarch;
1309 # Create a new gdbarch struct
1312 /* Create a new \`\`struct gdbarch'' based on information provided by
1313 \`\`struct gdbarch_info''. */
1318 gdbarch_alloc (const struct gdbarch_info *info,
1319 struct gdbarch_tdep *tdep)
1321 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1322 so that macros such as TARGET_ARCHITECTURE, when expanded, refer to
1323 the current local architecture and not the previous global
1324 architecture. This ensures that the new architectures initial
1325 values are not influenced by the previous architecture. Once
1326 everything is parameterised with gdbarch, this will go away. */
1327 struct gdbarch *current_gdbarch;
1329 /* Create an obstack for allocating all the per-architecture memory,
1330 then use that to allocate the architecture vector. */
1331 struct obstack *obstack = XMALLOC (struct obstack);
1332 obstack_init (obstack);
1333 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1334 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1335 current_gdbarch->obstack = obstack;
1337 alloc_gdbarch_data (current_gdbarch);
1339 current_gdbarch->tdep = tdep;
1342 function_list | while do_read
1346 printf " current_gdbarch->${function} = info->${function};\n"
1350 printf " /* Force the explicit initialization of these. */\n"
1351 function_list | while do_read
1353 if class_is_function_p || class_is_variable_p
1355 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1357 printf " current_gdbarch->${function} = ${predefault};\n"
1362 /* gdbarch_alloc() */
1364 return current_gdbarch;
1368 # Free a gdbarch struct.
1372 /* Allocate extra space using the per-architecture obstack. */
1375 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1377 void *data = obstack_alloc (arch->obstack, size);
1378 memset (data, 0, size);
1383 /* Free a gdbarch struct. This should never happen in normal
1384 operation --- once you've created a gdbarch, you keep it around.
1385 However, if an architecture's init function encounters an error
1386 building the structure, it may need to clean up a partially
1387 constructed gdbarch. */
1390 gdbarch_free (struct gdbarch *arch)
1392 struct obstack *obstack;
1393 gdb_assert (arch != NULL);
1394 gdb_assert (!arch->initialized_p);
1395 obstack = arch->obstack;
1396 obstack_free (obstack, 0); /* Includes the ARCH. */
1401 # verify a new architecture
1405 /* Ensure that all values in a GDBARCH are reasonable. */
1407 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1408 just happens to match the global variable \`\`current_gdbarch''. That
1409 way macros refering to that variable get the local and not the global
1410 version - ulgh. Once everything is parameterised with gdbarch, this
1414 verify_gdbarch (struct gdbarch *current_gdbarch)
1416 struct ui_file *log;
1417 struct cleanup *cleanups;
1420 log = mem_fileopen ();
1421 cleanups = make_cleanup_ui_file_delete (log);
1423 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1424 fprintf_unfiltered (log, "\n\tbyte-order");
1425 if (current_gdbarch->bfd_arch_info == NULL)
1426 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1427 /* Check those that need to be defined for the given multi-arch level. */
1429 function_list | while do_read
1431 if class_is_function_p || class_is_variable_p
1433 if [ "x${invalid_p}" = "x0" ]
1435 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1436 elif class_is_predicate_p
1438 printf " /* Skip verify of ${function}, has predicate */\n"
1439 # FIXME: See do_read for potential simplification
1440 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1442 printf " if (${invalid_p})\n"
1443 printf " current_gdbarch->${function} = ${postdefault};\n"
1444 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1446 printf " if (current_gdbarch->${function} == ${predefault})\n"
1447 printf " current_gdbarch->${function} = ${postdefault};\n"
1448 elif [ -n "${postdefault}" ]
1450 printf " if (current_gdbarch->${function} == 0)\n"
1451 printf " current_gdbarch->${function} = ${postdefault};\n"
1452 elif [ -n "${invalid_p}" ]
1454 printf " if (${invalid_p})\n"
1455 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1456 elif [ -n "${predefault}" ]
1458 printf " if (current_gdbarch->${function} == ${predefault})\n"
1459 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1464 buf = ui_file_xstrdup (log, &dummy);
1465 make_cleanup (xfree, buf);
1466 if (strlen (buf) > 0)
1467 internal_error (__FILE__, __LINE__,
1468 _("verify_gdbarch: the following are invalid ...%s"),
1470 do_cleanups (cleanups);
1474 # dump the structure
1478 /* Print out the details of the current architecture. */
1480 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1481 just happens to match the global variable \`\`current_gdbarch''. That
1482 way macros refering to that variable get the local and not the global
1483 version - ulgh. Once everything is parameterised with gdbarch, this
1487 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1489 const char *gdb_xm_file = "<not-defined>";
1490 const char *gdb_nm_file = "<not-defined>";
1491 const char *gdb_tm_file = "<not-defined>";
1492 #if defined (GDB_XM_FILE)
1493 gdb_xm_file = GDB_XM_FILE;
1495 fprintf_unfiltered (file,
1496 "gdbarch_dump: GDB_XM_FILE = %s\\n",
1498 #if defined (GDB_NM_FILE)
1499 gdb_nm_file = GDB_NM_FILE;
1501 fprintf_unfiltered (file,
1502 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1504 #if defined (GDB_TM_FILE)
1505 gdb_tm_file = GDB_TM_FILE;
1507 fprintf_unfiltered (file,
1508 "gdbarch_dump: GDB_TM_FILE = %s\\n",
1511 function_list | sort -t: -k 4 | while do_read
1513 # First the predicate
1514 if class_is_predicate_p
1516 if test -n "${macro}"
1518 printf "#ifdef ${macro}_P\n"
1519 printf " fprintf_unfiltered (file,\n"
1520 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1521 printf " \"${macro}_P()\",\n"
1522 printf " XSTRING (${macro}_P ()));\n"
1525 printf " fprintf_unfiltered (file,\n"
1526 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1527 printf " gdbarch_${function}_p (current_gdbarch));\n"
1529 # Print the macro definition.
1530 if test -n "${macro}"
1532 printf "#ifdef ${macro}\n"
1533 if class_is_function_p
1535 printf " fprintf_unfiltered (file,\n"
1536 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1537 printf " \"${macro}(${actual})\",\n"
1538 printf " XSTRING (${macro} (${actual})));\n"
1540 printf " fprintf_unfiltered (file,\n"
1541 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1542 printf " XSTRING (${macro}));\n"
1546 # Print the corresponding value.
1547 if class_is_function_p
1549 printf " fprintf_unfiltered (file,\n"
1550 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1551 printf " (long) current_gdbarch->${function});\n"
1554 case "${print}:${returntype}" in
1557 print="paddr_nz (current_gdbarch->${function})"
1561 print="paddr_d (current_gdbarch->${function})"
1567 printf " fprintf_unfiltered (file,\n"
1568 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1569 printf " ${print});\n"
1573 if (current_gdbarch->dump_tdep != NULL)
1574 current_gdbarch->dump_tdep (current_gdbarch, file);
1582 struct gdbarch_tdep *
1583 gdbarch_tdep (struct gdbarch *gdbarch)
1585 if (gdbarch_debug >= 2)
1586 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1587 return gdbarch->tdep;
1591 function_list | while do_read
1593 if class_is_predicate_p
1597 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1599 printf " gdb_assert (gdbarch != NULL);\n"
1600 printf " return ${predicate};\n"
1603 if class_is_function_p
1606 printf "${returntype}\n"
1607 if [ "x${formal}" = "xvoid" ]
1609 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1611 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1614 printf " gdb_assert (gdbarch != NULL);\n"
1615 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1616 if class_is_predicate_p && test -n "${predefault}"
1618 # Allow a call to a function with a predicate.
1619 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1621 printf " if (gdbarch_debug >= 2)\n"
1622 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1623 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1625 if class_is_multiarch_p
1632 if class_is_multiarch_p
1634 params="gdbarch, ${actual}"
1639 if [ "x${returntype}" = "xvoid" ]
1641 printf " gdbarch->${function} (${params});\n"
1643 printf " return gdbarch->${function} (${params});\n"
1648 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1649 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1651 printf " gdbarch->${function} = ${function};\n"
1653 elif class_is_variable_p
1656 printf "${returntype}\n"
1657 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1659 printf " gdb_assert (gdbarch != NULL);\n"
1660 if [ "x${invalid_p}" = "x0" ]
1662 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1663 elif [ -n "${invalid_p}" ]
1665 printf " /* Check variable is valid. */\n"
1666 printf " gdb_assert (!(${invalid_p}));\n"
1667 elif [ -n "${predefault}" ]
1669 printf " /* Check variable changed from pre-default. */\n"
1670 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1672 printf " if (gdbarch_debug >= 2)\n"
1673 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1674 printf " return gdbarch->${function};\n"
1678 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1679 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1681 printf " gdbarch->${function} = ${function};\n"
1683 elif class_is_info_p
1686 printf "${returntype}\n"
1687 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1689 printf " gdb_assert (gdbarch != NULL);\n"
1690 printf " if (gdbarch_debug >= 2)\n"
1691 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1692 printf " return gdbarch->${function};\n"
1697 # All the trailing guff
1701 /* Keep a registry of per-architecture data-pointers required by GDB
1708 gdbarch_data_pre_init_ftype *pre_init;
1709 gdbarch_data_post_init_ftype *post_init;
1712 struct gdbarch_data_registration
1714 struct gdbarch_data *data;
1715 struct gdbarch_data_registration *next;
1718 struct gdbarch_data_registry
1721 struct gdbarch_data_registration *registrations;
1724 struct gdbarch_data_registry gdbarch_data_registry =
1729 static struct gdbarch_data *
1730 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1731 gdbarch_data_post_init_ftype *post_init)
1733 struct gdbarch_data_registration **curr;
1734 /* Append the new registraration. */
1735 for (curr = &gdbarch_data_registry.registrations;
1737 curr = &(*curr)->next);
1738 (*curr) = XMALLOC (struct gdbarch_data_registration);
1739 (*curr)->next = NULL;
1740 (*curr)->data = XMALLOC (struct gdbarch_data);
1741 (*curr)->data->index = gdbarch_data_registry.nr++;
1742 (*curr)->data->pre_init = pre_init;
1743 (*curr)->data->post_init = post_init;
1744 (*curr)->data->init_p = 1;
1745 return (*curr)->data;
1748 struct gdbarch_data *
1749 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1751 return gdbarch_data_register (pre_init, NULL);
1754 struct gdbarch_data *
1755 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1757 return gdbarch_data_register (NULL, post_init);
1760 /* Create/delete the gdbarch data vector. */
1763 alloc_gdbarch_data (struct gdbarch *gdbarch)
1765 gdb_assert (gdbarch->data == NULL);
1766 gdbarch->nr_data = gdbarch_data_registry.nr;
1767 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1770 /* Initialize the current value of the specified per-architecture
1774 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1775 struct gdbarch_data *data,
1778 gdb_assert (data->index < gdbarch->nr_data);
1779 gdb_assert (gdbarch->data[data->index] == NULL);
1780 gdb_assert (data->pre_init == NULL);
1781 gdbarch->data[data->index] = pointer;
1784 /* Return the current value of the specified per-architecture
1788 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1790 gdb_assert (data->index < gdbarch->nr_data);
1791 if (gdbarch->data[data->index] == NULL)
1793 /* The data-pointer isn't initialized, call init() to get a
1795 if (data->pre_init != NULL)
1796 /* Mid architecture creation: pass just the obstack, and not
1797 the entire architecture, as that way it isn't possible for
1798 pre-init code to refer to undefined architecture
1800 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1801 else if (gdbarch->initialized_p
1802 && data->post_init != NULL)
1803 /* Post architecture creation: pass the entire architecture
1804 (as all fields are valid), but be careful to also detect
1805 recursive references. */
1807 gdb_assert (data->init_p);
1809 gdbarch->data[data->index] = data->post_init (gdbarch);
1813 /* The architecture initialization hasn't completed - punt -
1814 hope that the caller knows what they are doing. Once
1815 deprecated_set_gdbarch_data has been initialized, this can be
1816 changed to an internal error. */
1818 gdb_assert (gdbarch->data[data->index] != NULL);
1820 return gdbarch->data[data->index];
1825 /* Keep a registry of swapped data required by GDB modules. */
1830 struct gdbarch_swap_registration *source;
1831 struct gdbarch_swap *next;
1834 struct gdbarch_swap_registration
1837 unsigned long sizeof_data;
1838 gdbarch_swap_ftype *init;
1839 struct gdbarch_swap_registration *next;
1842 struct gdbarch_swap_registry
1845 struct gdbarch_swap_registration *registrations;
1848 struct gdbarch_swap_registry gdbarch_swap_registry =
1854 deprecated_register_gdbarch_swap (void *data,
1855 unsigned long sizeof_data,
1856 gdbarch_swap_ftype *init)
1858 struct gdbarch_swap_registration **rego;
1859 for (rego = &gdbarch_swap_registry.registrations;
1861 rego = &(*rego)->next);
1862 (*rego) = XMALLOC (struct gdbarch_swap_registration);
1863 (*rego)->next = NULL;
1864 (*rego)->init = init;
1865 (*rego)->data = data;
1866 (*rego)->sizeof_data = sizeof_data;
1870 current_gdbarch_swap_init_hack (void)
1872 struct gdbarch_swap_registration *rego;
1873 struct gdbarch_swap **curr = ¤t_gdbarch->swap;
1874 for (rego = gdbarch_swap_registry.registrations;
1878 if (rego->data != NULL)
1880 (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch,
1881 struct gdbarch_swap);
1882 (*curr)->source = rego;
1883 (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch,
1885 (*curr)->next = NULL;
1886 curr = &(*curr)->next;
1888 if (rego->init != NULL)
1893 static struct gdbarch *
1894 current_gdbarch_swap_out_hack (void)
1896 struct gdbarch *old_gdbarch = current_gdbarch;
1897 struct gdbarch_swap *curr;
1899 gdb_assert (old_gdbarch != NULL);
1900 for (curr = old_gdbarch->swap;
1904 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data);
1905 memset (curr->source->data, 0, curr->source->sizeof_data);
1907 current_gdbarch = NULL;
1912 current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch)
1914 struct gdbarch_swap *curr;
1916 gdb_assert (current_gdbarch == NULL);
1917 for (curr = new_gdbarch->swap;
1920 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data);
1921 current_gdbarch = new_gdbarch;
1925 /* Keep a registry of the architectures known by GDB. */
1927 struct gdbarch_registration
1929 enum bfd_architecture bfd_architecture;
1930 gdbarch_init_ftype *init;
1931 gdbarch_dump_tdep_ftype *dump_tdep;
1932 struct gdbarch_list *arches;
1933 struct gdbarch_registration *next;
1936 static struct gdbarch_registration *gdbarch_registry = NULL;
1939 append_name (const char ***buf, int *nr, const char *name)
1941 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1947 gdbarch_printable_names (void)
1949 /* Accumulate a list of names based on the registed list of
1951 enum bfd_architecture a;
1953 const char **arches = NULL;
1954 struct gdbarch_registration *rego;
1955 for (rego = gdbarch_registry;
1959 const struct bfd_arch_info *ap;
1960 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1962 internal_error (__FILE__, __LINE__,
1963 _("gdbarch_architecture_names: multi-arch unknown"));
1966 append_name (&arches, &nr_arches, ap->printable_name);
1971 append_name (&arches, &nr_arches, NULL);
1977 gdbarch_register (enum bfd_architecture bfd_architecture,
1978 gdbarch_init_ftype *init,
1979 gdbarch_dump_tdep_ftype *dump_tdep)
1981 struct gdbarch_registration **curr;
1982 const struct bfd_arch_info *bfd_arch_info;
1983 /* Check that BFD recognizes this architecture */
1984 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1985 if (bfd_arch_info == NULL)
1987 internal_error (__FILE__, __LINE__,
1988 _("gdbarch: Attempt to register unknown architecture (%d)"),
1991 /* Check that we haven't seen this architecture before */
1992 for (curr = &gdbarch_registry;
1994 curr = &(*curr)->next)
1996 if (bfd_architecture == (*curr)->bfd_architecture)
1997 internal_error (__FILE__, __LINE__,
1998 _("gdbarch: Duplicate registraration of architecture (%s)"),
1999 bfd_arch_info->printable_name);
2003 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
2004 bfd_arch_info->printable_name,
2007 (*curr) = XMALLOC (struct gdbarch_registration);
2008 (*curr)->bfd_architecture = bfd_architecture;
2009 (*curr)->init = init;
2010 (*curr)->dump_tdep = dump_tdep;
2011 (*curr)->arches = NULL;
2012 (*curr)->next = NULL;
2016 register_gdbarch_init (enum bfd_architecture bfd_architecture,
2017 gdbarch_init_ftype *init)
2019 gdbarch_register (bfd_architecture, init, NULL);
2023 /* Look for an architecture using gdbarch_info. */
2025 struct gdbarch_list *
2026 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
2027 const struct gdbarch_info *info)
2029 for (; arches != NULL; arches = arches->next)
2031 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
2033 if (info->byte_order != arches->gdbarch->byte_order)
2035 if (info->osabi != arches->gdbarch->osabi)
2037 if (info->target_desc != arches->gdbarch->target_desc)
2045 /* Find an architecture that matches the specified INFO. Create a new
2046 architecture if needed. Return that new architecture. Assumes
2047 that there is no current architecture. */
2049 static struct gdbarch *
2050 find_arch_by_info (struct gdbarch_info info)
2052 struct gdbarch *new_gdbarch;
2053 struct gdbarch_registration *rego;
2055 /* The existing architecture has been swapped out - all this code
2056 works from a clean slate. */
2057 gdb_assert (current_gdbarch == NULL);
2059 /* Fill in missing parts of the INFO struct using a number of
2060 sources: "set ..."; INFOabfd supplied; and the global
2062 gdbarch_info_fill (&info);
2064 /* Must have found some sort of architecture. */
2065 gdb_assert (info.bfd_arch_info != NULL);
2069 fprintf_unfiltered (gdb_stdlog,
2070 "find_arch_by_info: info.bfd_arch_info %s\n",
2071 (info.bfd_arch_info != NULL
2072 ? info.bfd_arch_info->printable_name
2074 fprintf_unfiltered (gdb_stdlog,
2075 "find_arch_by_info: info.byte_order %d (%s)\n",
2077 (info.byte_order == BFD_ENDIAN_BIG ? "big"
2078 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
2080 fprintf_unfiltered (gdb_stdlog,
2081 "find_arch_by_info: info.osabi %d (%s)\n",
2082 info.osabi, gdbarch_osabi_name (info.osabi));
2083 fprintf_unfiltered (gdb_stdlog,
2084 "find_arch_by_info: info.abfd 0x%lx\n",
2086 fprintf_unfiltered (gdb_stdlog,
2087 "find_arch_by_info: info.tdep_info 0x%lx\n",
2088 (long) info.tdep_info);
2091 /* Find the tdep code that knows about this architecture. */
2092 for (rego = gdbarch_registry;
2095 if (rego->bfd_architecture == info.bfd_arch_info->arch)
2100 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2101 "No matching architecture\n");
2105 /* Ask the tdep code for an architecture that matches "info". */
2106 new_gdbarch = rego->init (info, rego->arches);
2108 /* Did the tdep code like it? No. Reject the change and revert to
2109 the old architecture. */
2110 if (new_gdbarch == NULL)
2113 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2114 "Target rejected architecture\n");
2118 /* Is this a pre-existing architecture (as determined by already
2119 being initialized)? Move it to the front of the architecture
2120 list (keeping the list sorted Most Recently Used). */
2121 if (new_gdbarch->initialized_p)
2123 struct gdbarch_list **list;
2124 struct gdbarch_list *this;
2126 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2127 "Previous architecture 0x%08lx (%s) selected\n",
2129 new_gdbarch->bfd_arch_info->printable_name);
2130 /* Find the existing arch in the list. */
2131 for (list = ®o->arches;
2132 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2133 list = &(*list)->next);
2134 /* It had better be in the list of architectures. */
2135 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2138 (*list) = this->next;
2139 /* Insert THIS at the front. */
2140 this->next = rego->arches;
2141 rego->arches = this;
2146 /* It's a new architecture. */
2148 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2149 "New architecture 0x%08lx (%s) selected\n",
2151 new_gdbarch->bfd_arch_info->printable_name);
2153 /* Insert the new architecture into the front of the architecture
2154 list (keep the list sorted Most Recently Used). */
2156 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2157 this->next = rego->arches;
2158 this->gdbarch = new_gdbarch;
2159 rego->arches = this;
2162 /* Check that the newly installed architecture is valid. Plug in
2163 any post init values. */
2164 new_gdbarch->dump_tdep = rego->dump_tdep;
2165 verify_gdbarch (new_gdbarch);
2166 new_gdbarch->initialized_p = 1;
2168 /* Initialize any per-architecture swap areas. This phase requires
2169 a valid global CURRENT_GDBARCH. Set it momentarially, and then
2170 swap the entire architecture out. */
2171 current_gdbarch = new_gdbarch;
2172 current_gdbarch_swap_init_hack ();
2173 current_gdbarch_swap_out_hack ();
2176 gdbarch_dump (new_gdbarch, gdb_stdlog);
2182 gdbarch_find_by_info (struct gdbarch_info info)
2184 /* Save the previously selected architecture, setting the global to
2185 NULL. This stops things like gdbarch->init() trying to use the
2186 previous architecture's configuration. The previous architecture
2187 may not even be of the same architecture family. The most recent
2188 architecture of the same family is found at the head of the
2189 rego->arches list. */
2190 struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack ();
2192 /* Find the specified architecture. */
2193 struct gdbarch *new_gdbarch = find_arch_by_info (info);
2195 /* Restore the existing architecture. */
2196 gdb_assert (current_gdbarch == NULL);
2197 current_gdbarch_swap_in_hack (old_gdbarch);
2202 /* Make the specified architecture current, swapping the existing one
2206 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2208 gdb_assert (new_gdbarch != NULL);
2209 gdb_assert (current_gdbarch != NULL);
2210 gdb_assert (new_gdbarch->initialized_p);
2211 current_gdbarch_swap_out_hack ();
2212 current_gdbarch_swap_in_hack (new_gdbarch);
2213 architecture_changed_event ();
2214 reinit_frame_cache ();
2217 extern void _initialize_gdbarch (void);
2220 _initialize_gdbarch (void)
2222 struct cmd_list_element *c;
2224 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2225 Set architecture debugging."), _("\\
2226 Show architecture debugging."), _("\\
2227 When non-zero, architecture debugging is enabled."),
2230 &setdebuglist, &showdebuglist);
2236 #../move-if-change new-gdbarch.c gdbarch.c
2237 compare_new gdbarch.c