3 # Architecture commands for GDB, the GNU debugger.
5 # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
6 # Free Software Foundation, Inc.
8 # This file is part of GDB.
10 # This program is free software; you can redistribute it and/or modify
11 # it under the terms of the GNU General Public License as published by
12 # the Free Software Foundation; either version 3 of the License, or
13 # (at your option) any later version.
15 # This program is distributed in the hope that it will be useful,
16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 # GNU General Public License for more details.
20 # You should have received a copy of the GNU General Public License
21 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 # Make certain that the script is not running in an internationalized
26 LC_ALL
=c
; export LC_ALL
34 echo "${file} missing? cp new-${file} ${file}" 1>&2
35 elif diff -u ${file} new-
${file}
37 echo "${file} unchanged" 1>&2
39 echo "${file} has changed? cp new-${file} ${file}" 1>&2
44 # Format of the input table
45 read="class macro returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
53 if test "${line}" = ""
56 elif test "${line}" = "#" -a "${comment}" = ""
59 elif expr "${line}" : "#" > /dev
/null
65 # The semantics of IFS varies between different SH's. Some
66 # treat ``::' as three fields while some treat it as just too.
67 # Work around this by eliminating ``::'' ....
68 line
="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
70 OFS
="${IFS}" ; IFS
="[:]"
71 eval read ${read} <<EOF
76 if test -n "${garbage_at_eol}"
78 echo "Garbage at end-of-line in ${line}" 1>&2
83 # .... and then going back through each field and strip out those
84 # that ended up with just that space character.
87 if eval test \"\
${${r}}\" = \"\
\"
93 FUNCTION
=`echo ${function} | tr '[a-z]' '[A-Z]'`
94 if test "x${macro}" = "x="
96 # Provide a UCASE version of function (for when there isn't MACRO)
98 elif test "${macro}" = "${FUNCTION}"
100 echo "${function}: Specify = for macro field" 1>&2
105 # Check that macro definition wasn't supplied for multi-arch
108 if test "${macro}" != ""
110 echo "Error: Function ${function} multi-arch yet macro ${macro} supplied" 1>&2
117 m
) staticdefault
="${predefault}" ;;
118 M
) staticdefault
="0" ;;
119 * ) test "${staticdefault}" || staticdefault
=0 ;;
124 case "${invalid_p}" in
126 if test -n "${predefault}"
128 #invalid_p="gdbarch->${function} == ${predefault}"
129 predicate
="gdbarch->${function} != ${predefault}"
130 elif class_is_variable_p
132 predicate
="gdbarch->${function} != 0"
133 elif class_is_function_p
135 predicate
="gdbarch->${function} != NULL"
139 echo "Predicate function ${function} with invalid_p." 1>&2
146 # PREDEFAULT is a valid fallback definition of MEMBER when
147 # multi-arch is not enabled. This ensures that the
148 # default value, when multi-arch is the same as the
149 # default value when not multi-arch. POSTDEFAULT is
150 # always a valid definition of MEMBER as this again
151 # ensures consistency.
153 if [ -n "${postdefault}" ]
155 fallbackdefault
="${postdefault}"
156 elif [ -n "${predefault}" ]
158 fallbackdefault
="${predefault}"
163 #NOT YET: See gdbarch.log for basic verification of
178 fallback_default_p
()
180 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \
181 ||
[ -n "${predefault}" -a "x${invalid_p}" = "x0" ]
184 class_is_variable_p
()
192 class_is_function_p
()
195 *f
* |
*F
* |
*m
* |
*M
* ) true
;;
200 class_is_multiarch_p
()
208 class_is_predicate_p
()
211 *F
* |
*V
* |
*M
* ) true
;;
225 # dump out/verify the doco
235 # F -> function + predicate
236 # hiding a function + predicate to test function validity
239 # V -> variable + predicate
240 # hiding a variable + predicate to test variables validity
242 # hiding something from the ``struct info'' object
243 # m -> multi-arch function
244 # hiding a multi-arch function (parameterised with the architecture)
245 # M -> multi-arch function + predicate
246 # hiding a multi-arch function + predicate to test function validity
250 # The name of the legacy C macro by which this method can be
251 # accessed. If empty, no macro is defined. If "=", a macro
252 # formed from the upper-case function name is used.
256 # For functions, the return type; for variables, the data type
260 # For functions, the member function name; for variables, the
261 # variable name. Member function names are always prefixed with
262 # ``gdbarch_'' for name-space purity.
266 # The formal argument list. It is assumed that the formal
267 # argument list includes the actual name of each list element.
268 # A function with no arguments shall have ``void'' as the
269 # formal argument list.
273 # The list of actual arguments. The arguments specified shall
274 # match the FORMAL list given above. Functions with out
275 # arguments leave this blank.
279 # To help with the GDB startup a static gdbarch object is
280 # created. STATICDEFAULT is the value to insert into that
281 # static gdbarch object. Since this a static object only
282 # simple expressions can be used.
284 # If STATICDEFAULT is empty, zero is used.
288 # An initial value to assign to MEMBER of the freshly
289 # malloc()ed gdbarch object. After initialization, the
290 # freshly malloc()ed object is passed to the target
291 # architecture code for further updates.
293 # If PREDEFAULT is empty, zero is used.
295 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero
296 # INVALID_P are specified, PREDEFAULT will be used as the
297 # default for the non- multi-arch target.
299 # A zero PREDEFAULT function will force the fallback to call
302 # Variable declarations can refer to ``gdbarch'' which will
303 # contain the current architecture. Care should be taken.
307 # A value to assign to MEMBER of the new gdbarch object should
308 # the target architecture code fail to change the PREDEFAULT
311 # If POSTDEFAULT is empty, no post update is performed.
313 # If both INVALID_P and POSTDEFAULT are non-empty then
314 # INVALID_P will be used to determine if MEMBER should be
315 # changed to POSTDEFAULT.
317 # If a non-empty POSTDEFAULT and a zero INVALID_P are
318 # specified, POSTDEFAULT will be used as the default for the
319 # non- multi-arch target (regardless of the value of
322 # You cannot specify both a zero INVALID_P and a POSTDEFAULT.
324 # Variable declarations can refer to ``current_gdbarch'' which
325 # will contain the current architecture. Care should be
330 # A predicate equation that validates MEMBER. Non-zero is
331 # returned if the code creating the new architecture failed to
332 # initialize MEMBER or the initialized the member is invalid.
333 # If POSTDEFAULT is non-empty then MEMBER will be updated to
334 # that value. If POSTDEFAULT is empty then internal_error()
337 # If INVALID_P is empty, a check that MEMBER is no longer
338 # equal to PREDEFAULT is used.
340 # The expression ``0'' disables the INVALID_P check making
341 # PREDEFAULT a legitimate value.
343 # See also PREDEFAULT and POSTDEFAULT.
347 # An optional expression that convers MEMBER to a value
348 # suitable for formatting using %s.
350 # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d
351 # (anything else) is used.
353 garbage_at_eol
) : ;;
355 # Catches stray fields.
358 echo "Bad field ${field}"
366 # See below (DOCO) for description of each field
368 i::const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (current_gdbarch)->printable_name
370 i::int:byte_order:::BFD_ENDIAN_BIG
372 i::enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
374 i::const struct target_desc *:target_desc:::::::paddr_d ((long) current_gdbarch->target_desc)
375 # Number of bits in a char or unsigned char for the target machine.
376 # Just like CHAR_BIT in <limits.h> but describes the target machine.
377 # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
379 # Number of bits in a short or unsigned short for the target machine.
380 v::int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0
381 # Number of bits in an int or unsigned int for the target machine.
382 v::int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0
383 # Number of bits in a long or unsigned long for the target machine.
384 v::int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0
385 # Number of bits in a long long or unsigned long long for the target
387 v::int:long_long_bit:::8 * sizeof (LONGEST):2*current_gdbarch->long_bit::0
389 # The ABI default bit-size and format for "float", "double", and "long
390 # double". These bit/format pairs should eventually be combined into
391 # a single object. For the moment, just initialize them as a pair.
392 # Each format describes both the big and little endian layouts (if
395 v::int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
396 v::const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (current_gdbarch->float_format)
397 v::int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
398 v::const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (current_gdbarch->double_format)
399 v::int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
400 v::const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (current_gdbarch->long_double_format)
402 # For most targets, a pointer on the target and its representation as an
403 # address in GDB have the same size and "look the same". For such a
404 # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
405 # / addr_bit will be set from it.
407 # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
408 # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
411 # ptr_bit is the size of a pointer on the target
412 v::int:ptr_bit:::8 * sizeof (void*):current_gdbarch->int_bit::0
413 # addr_bit is the size of a target address as represented in gdb
414 v::int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (current_gdbarch):
416 # One if \`char' acts like \`signed char', zero if \`unsigned char'.
417 v::int:char_signed:::1:-1:1
419 F::CORE_ADDR:read_pc:struct regcache *regcache:regcache
420 F::void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
421 # Function for getting target's idea of a frame pointer. FIXME: GDB's
422 # whole scheme for dealing with "frames" and "frame pointers" needs a
424 f::void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0
426 M::void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
427 M::void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
429 v::int:num_regs:::0:-1
430 # This macro gives the number of pseudo-registers that live in the
431 # register namespace but do not get fetched or stored on the target.
432 # These pseudo-registers may be aliases for other registers,
433 # combinations of other registers, or they may be computed by GDB.
434 v::int:num_pseudo_regs:::0:0::0
436 # GDB's standard (or well known) register numbers. These can map onto
437 # a real register or a pseudo (computed) register or not be defined at
439 # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
440 v::int:sp_regnum:::-1:-1::0
441 v::int:pc_regnum:::-1:-1::0
442 v::int:ps_regnum:::-1:-1::0
443 v::int:fp0_regnum:::0:-1::0
444 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
445 f::int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0
446 # Provide a default mapping from a ecoff register number to a gdb REGNUM.
447 f::int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
448 # Provide a default mapping from a DWARF register number to a gdb REGNUM.
449 f::int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0
450 # Convert from an sdb register number to an internal gdb register number.
451 f::int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
452 f::int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
453 f::const char *:register_name:int regnr:regnr
455 # Return the type of a register specified by the architecture. Only
456 # the register cache should call this function directly; others should
457 # use "register_type".
458 M::struct type *:register_type:int reg_nr:reg_nr
460 # See gdbint.texinfo, and PUSH_DUMMY_CALL.
461 M::struct frame_id:unwind_dummy_id:struct frame_info *info:info
462 # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
463 # deprecated_fp_regnum.
464 v::int:deprecated_fp_regnum:::-1:-1::0
466 # See gdbint.texinfo. See infcall.c.
467 M::CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
468 v::int:call_dummy_location::::AT_ENTRY_POINT::0
469 M::CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache
471 m::void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all::default_print_registers_info::0
472 M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
473 M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
474 # MAP a GDB RAW register number onto a simulator register number. See
475 # also include/...-sim.h.
476 f::int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
477 f::int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
478 f::int:cannot_store_register:int regnum:regnum::cannot_register_not::0
479 # setjmp/longjmp support.
480 F::int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
482 v::int:believe_pcc_promotion:::::::
484 f::int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
485 f::void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0
486 f::void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
487 # Construct a value representing the contents of register REGNUM in
488 # frame FRAME, interpreted as type TYPE. The routine needs to
489 # allocate and return a struct value with all value attributes
490 # (but not the value contents) filled in.
491 f::struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0
493 f::CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
494 f::void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
495 M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
497 # It has been suggested that this, well actually its predecessor,
498 # should take the type/value of the function to be called and not the
499 # return type. This is left as an exercise for the reader.
501 M::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:valtype, regcache, readbuf, writebuf
503 f::CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
504 f::int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
505 f::const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
506 M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
507 f::int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
508 f::int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
509 v::CORE_ADDR:decr_pc_after_break:::0:::0
511 # A function can be addressed by either it's "pointer" (possibly a
512 # descriptor address) or "entry point" (first executable instruction).
513 # The method "convert_from_func_ptr_addr" converting the former to the
514 # latter. gdbarch_deprecated_function_start_offset is being used to implement
515 # a simplified subset of that functionality - the function's address
516 # corresponds to the "function pointer" and the function's start
517 # corresponds to the "function entry point" - and hence is redundant.
519 v::CORE_ADDR:deprecated_function_start_offset:::0:::0
521 # Return the remote protocol register number associated with this
522 # register. Normally the identity mapping.
523 m::int:remote_register_number:int regno:regno::default_remote_register_number::0
525 # Fetch the target specific address used to represent a load module.
526 F::CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
528 v::CORE_ADDR:frame_args_skip:::0:::0
529 M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
530 M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
531 # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
532 # frame-base. Enable frame-base before frame-unwind.
533 F::int:frame_num_args:struct frame_info *frame:frame
535 M::CORE_ADDR:frame_align:CORE_ADDR address:address
536 m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
537 v::int:frame_red_zone_size
539 m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
540 # On some machines there are bits in addresses which are not really
541 # part of the address, but are used by the kernel, the hardware, etc.
542 # for special purposes. gdbarch_addr_bits_remove takes out any such bits so
543 # we get a "real" address such as one would find in a symbol table.
544 # This is used only for addresses of instructions, and even then I'm
545 # not sure it's used in all contexts. It exists to deal with there
546 # being a few stray bits in the PC which would mislead us, not as some
547 # sort of generic thing to handle alignment or segmentation (it's
548 # possible it should be in TARGET_READ_PC instead).
549 f::CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
550 # It is not at all clear why gdbarch_smash_text_address is not folded into
551 # gdbarch_addr_bits_remove.
552 f::CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0
554 # FIXME/cagney/2001-01-18: This should be split in two. A target method that
555 # indicates if the target needs software single step. An ISA method to
558 # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
559 # breakpoints using the breakpoint system instead of blatting memory directly
562 # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
563 # target can single step. If not, then implement single step using breakpoints.
565 # A return value of 1 means that the software_single_step breakpoints
566 # were inserted; 0 means they were not.
567 F::int:software_single_step:struct frame_info *frame:frame
569 # Return non-zero if the processor is executing a delay slot and a
570 # further single-step is needed before the instruction finishes.
571 M::int:single_step_through_delay:struct frame_info *frame:frame
572 # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
573 # disassembler. Perhaps objdump can handle it?
574 f::int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
575 f::CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
578 # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
579 # evaluates non-zero, this is the address where the debugger will place
580 # a step-resume breakpoint to get us past the dynamic linker.
581 m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
582 # Some systems also have trampoline code for returning from shared libs.
583 f::int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0
585 # A target might have problems with watchpoints as soon as the stack
586 # frame of the current function has been destroyed. This mostly happens
587 # as the first action in a funtion's epilogue. in_function_epilogue_p()
588 # is defined to return a non-zero value if either the given addr is one
589 # instruction after the stack destroying instruction up to the trailing
590 # return instruction or if we can figure out that the stack frame has
591 # already been invalidated regardless of the value of addr. Targets
592 # which don't suffer from that problem could just let this functionality
594 m::int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
595 # Given a vector of command-line arguments, return a newly allocated
596 # string which, when passed to the create_inferior function, will be
597 # parsed (on Unix systems, by the shell) to yield the same vector.
598 # This function should call error() if the argument vector is not
599 # representable for this target or if this target does not support
600 # command-line arguments.
601 # ARGC is the number of elements in the vector.
602 # ARGV is an array of strings, one per argument.
603 m::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0
604 f::void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0
605 f::void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
606 v::const char *:name_of_malloc:::"malloc":"malloc"::0:current_gdbarch->name_of_malloc
607 v::int:cannot_step_breakpoint:::0:0::0
608 v::int:have_nonsteppable_watchpoint:::0:0::0
609 F::int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
610 M::const char *:address_class_type_flags_to_name:int type_flags:type_flags
611 M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
612 # Is a register in a group
613 m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
614 # Fetch the pointer to the ith function argument.
615 F::CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
617 # Return the appropriate register set for a core file section with
618 # name SECT_NAME and size SECT_SIZE.
619 M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
621 # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
622 # core file into buffer READBUF with length LEN.
623 M::LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
625 # If the elements of C++ vtables are in-place function descriptors rather
626 # than normal function pointers (which may point to code or a descriptor),
628 v::int:vtable_function_descriptors:::0:0::0
630 # Set if the least significant bit of the delta is used instead of the least
631 # significant bit of the pfn for pointers to virtual member functions.
632 v::int:vbit_in_delta:::0:0::0
634 # Advance PC to next instruction in order to skip a permanent breakpoint.
635 F::void:skip_permanent_breakpoint:struct regcache *regcache:regcache
637 # Refresh overlay mapped state for section OSECT.
638 F::void:overlay_update:struct obj_section *osect:osect
640 M::const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
642 # Handle special encoding of static variables in stabs debug info.
643 F::char *:static_transform_name:char *name:name
650 exec > new-gdbarch.log
651 function_list |
while do_read
654 ${class} ${returntype} ${function} ($formal)
658 eval echo \"\ \ \ \
${r}=\
${${r}}\"
660 if class_is_predicate_p
&& fallback_default_p
662 echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
666 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
668 echo "Error: postdefault is useless when invalid_p=0" 1>&2
672 if class_is_multiarch_p
674 if class_is_predicate_p
; then :
675 elif test "x${predefault}" = "x"
677 echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
686 compare_new gdbarch.log
692 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
694 /* Dynamic architecture support for GDB, the GNU debugger.
696 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
697 Free Software Foundation, Inc.
699 This file is part of GDB.
701 This program is free software; you can redistribute it and/or modify
702 it under the terms of the GNU General Public License as published by
703 the Free Software Foundation; either version 3 of the License, or
704 (at your option) any later version.
706 This program is distributed in the hope that it will be useful,
707 but WITHOUT ANY WARRANTY; without even the implied warranty of
708 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
709 GNU General Public License for more details.
711 You should have received a copy of the GNU General Public License
712 along with this program. If not, see <http://www.gnu.org/licenses/>. */
714 /* This file was created with the aid of \`\`gdbarch.sh''.
716 The Bourne shell script \`\`gdbarch.sh'' creates the files
717 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them
718 against the existing \`\`gdbarch.[hc]''. Any differences found
721 If editing this file, please also run gdbarch.sh and merge any
722 changes into that script. Conversely, when making sweeping changes
723 to this file, modifying gdbarch.sh and using its output may prove
745 struct minimal_symbol;
749 struct disassemble_info;
752 struct bp_target_info;
755 extern struct gdbarch *current_gdbarch;
761 printf "/* The following are pre-initialized by GDBARCH. */\n"
762 function_list |
while do_read
767 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
768 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n"
769 if test -n "${macro}"
771 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
772 printf "#error \"Non multi-arch definition of ${macro}\"\n"
774 printf "#if !defined (${macro})\n"
775 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
784 printf "/* The following are initialized by the target dependent code. */\n"
785 function_list |
while do_read
787 if [ -n "${comment}" ]
789 echo "${comment}" |
sed \
795 if class_is_predicate_p
797 if test -n "${macro}"
800 printf "#if defined (${macro})\n"
801 printf "/* Legacy for systems yet to multi-arch ${macro} */\n"
802 printf "#if !defined (${macro}_P)\n"
803 printf "#define ${macro}_P() (1)\n"
808 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
809 if test -n "${macro}"
811 printf "#if !defined (GDB_TM_FILE) && defined (${macro}_P)\n"
812 printf "#error \"Non multi-arch definition of ${macro}\"\n"
814 printf "#if !defined (${macro}_P)\n"
815 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n"
819 if class_is_variable_p
822 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
823 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
824 if test -n "${macro}"
826 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
827 printf "#error \"Non multi-arch definition of ${macro}\"\n"
829 printf "#if !defined (${macro})\n"
830 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
834 if class_is_function_p
837 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
839 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
840 elif class_is_multiarch_p
842 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
844 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
846 if [ "x${formal}" = "xvoid" ]
848 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
850 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
852 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
853 if test -n "${macro}"
855 printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n"
856 printf "#error \"Non multi-arch definition of ${macro}\"\n"
858 if [ "x${actual}" = "x" ]
860 d
="#define ${macro}() (gdbarch_${function} (current_gdbarch))"
861 elif [ "x${actual}" = "x-" ]
863 d
="#define ${macro} (gdbarch_${function} (current_gdbarch))"
865 d
="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))"
867 printf "#if !defined (${macro})\n"
868 if [ "x${actual}" = "x" ]
870 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n"
871 elif [ "x${actual}" = "x-" ]
873 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n"
875 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n"
885 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
888 /* Mechanism for co-ordinating the selection of a specific
891 GDB targets (*-tdep.c) can register an interest in a specific
892 architecture. Other GDB components can register a need to maintain
893 per-architecture data.
895 The mechanisms below ensures that there is only a loose connection
896 between the set-architecture command and the various GDB
897 components. Each component can independently register their need
898 to maintain architecture specific data with gdbarch.
902 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It
905 The more traditional mega-struct containing architecture specific
906 data for all the various GDB components was also considered. Since
907 GDB is built from a variable number of (fairly independent)
908 components it was determined that the global aproach was not
912 /* Register a new architectural family with GDB.
914 Register support for the specified ARCHITECTURE with GDB. When
915 gdbarch determines that the specified architecture has been
916 selected, the corresponding INIT function is called.
920 The INIT function takes two parameters: INFO which contains the
921 information available to gdbarch about the (possibly new)
922 architecture; ARCHES which is a list of the previously created
923 \`\`struct gdbarch'' for this architecture.
925 The INFO parameter is, as far as possible, be pre-initialized with
926 information obtained from INFO.ABFD or the global defaults.
928 The ARCHES parameter is a linked list (sorted most recently used)
929 of all the previously created architures for this architecture
930 family. The (possibly NULL) ARCHES->gdbarch can used to access
931 values from the previously selected architecture for this
932 architecture family. The global \`\`current_gdbarch'' shall not be
935 The INIT function shall return any of: NULL - indicating that it
936 doesn't recognize the selected architecture; an existing \`\`struct
937 gdbarch'' from the ARCHES list - indicating that the new
938 architecture is just a synonym for an earlier architecture (see
939 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch''
940 - that describes the selected architecture (see gdbarch_alloc()).
942 The DUMP_TDEP function shall print out all target specific values.
943 Care should be taken to ensure that the function works in both the
944 multi-arch and non- multi-arch cases. */
948 struct gdbarch *gdbarch;
949 struct gdbarch_list *next;
954 /* Use default: NULL (ZERO). */
955 const struct bfd_arch_info *bfd_arch_info;
957 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */
960 /* Use default: NULL (ZERO). */
963 /* Use default: NULL (ZERO). */
964 struct gdbarch_tdep_info *tdep_info;
966 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
967 enum gdb_osabi osabi;
969 /* Use default: NULL (ZERO). */
970 const struct target_desc *target_desc;
973 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
974 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
976 /* DEPRECATED - use gdbarch_register() */
977 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
979 extern void gdbarch_register (enum bfd_architecture architecture,
980 gdbarch_init_ftype *,
981 gdbarch_dump_tdep_ftype *);
984 /* Return a freshly allocated, NULL terminated, array of the valid
985 architecture names. Since architectures are registered during the
986 _initialize phase this function only returns useful information
987 once initialization has been completed. */
989 extern const char **gdbarch_printable_names (void);
992 /* Helper function. Search the list of ARCHES for a GDBARCH that
993 matches the information provided by INFO. */
995 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
998 /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
999 basic initialization using values obtained from the INFO and TDEP
1000 parameters. set_gdbarch_*() functions are called to complete the
1001 initialization of the object. */
1003 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
1006 /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
1007 It is assumed that the caller freeds the \`\`struct
1010 extern void gdbarch_free (struct gdbarch *);
1013 /* Helper function. Allocate memory from the \`\`struct gdbarch''
1014 obstack. The memory is freed when the corresponding architecture
1017 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1018 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1019 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1022 /* Helper function. Force an update of the current architecture.
1024 The actual architecture selected is determined by INFO, \`\`(gdb) set
1025 architecture'' et.al., the existing architecture and BFD's default
1026 architecture. INFO should be initialized to zero and then selected
1027 fields should be updated.
1029 Returns non-zero if the update succeeds */
1031 extern int gdbarch_update_p (struct gdbarch_info info);
1034 /* Helper function. Find an architecture matching info.
1036 INFO should be initialized using gdbarch_info_init, relevant fields
1037 set, and then finished using gdbarch_info_fill.
1039 Returns the corresponding architecture, or NULL if no matching
1040 architecture was found. "current_gdbarch" is not updated. */
1042 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1045 /* Helper function. Set the global "current_gdbarch" to "gdbarch".
1047 FIXME: kettenis/20031124: Of the functions that follow, only
1048 gdbarch_from_bfd is supposed to survive. The others will
1049 dissappear since in the future GDB will (hopefully) be truly
1050 multi-arch. However, for now we're still stuck with the concept of
1051 a single active architecture. */
1053 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1056 /* Register per-architecture data-pointer.
1058 Reserve space for a per-architecture data-pointer. An identifier
1059 for the reserved data-pointer is returned. That identifer should
1060 be saved in a local static variable.
1062 Memory for the per-architecture data shall be allocated using
1063 gdbarch_obstack_zalloc. That memory will be deleted when the
1064 corresponding architecture object is deleted.
1066 When a previously created architecture is re-selected, the
1067 per-architecture data-pointer for that previous architecture is
1068 restored. INIT() is not re-called.
1070 Multiple registrarants for any architecture are allowed (and
1071 strongly encouraged). */
1073 struct gdbarch_data;
1075 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1076 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1077 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1078 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1079 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1080 struct gdbarch_data *data,
1083 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1086 /* Set the dynamic target-system-dependent parameters (architecture,
1087 byte-order, ...) using information found in the BFD */
1089 extern void set_gdbarch_from_file (bfd *);
1092 /* Initialize the current architecture to the "first" one we find on
1095 extern void initialize_current_architecture (void);
1097 /* gdbarch trace variable */
1098 extern int gdbarch_debug;
1100 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1105 #../move-if-change new-gdbarch.h gdbarch.h
1106 compare_new gdbarch.h
1113 exec > new-gdbarch.c
1118 #include "arch-utils.h"
1121 #include "inferior.h"
1124 #include "floatformat.h"
1126 #include "gdb_assert.h"
1127 #include "gdb_string.h"
1128 #include "gdb-events.h"
1129 #include "reggroups.h"
1131 #include "gdb_obstack.h"
1133 /* Static function declarations */
1135 static void alloc_gdbarch_data (struct gdbarch *);
1137 /* Non-zero if we want to trace architecture code. */
1139 #ifndef GDBARCH_DEBUG
1140 #define GDBARCH_DEBUG 0
1142 int gdbarch_debug = GDBARCH_DEBUG;
1144 show_gdbarch_debug (struct ui_file *file, int from_tty,
1145 struct cmd_list_element *c, const char *value)
1147 fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
1151 pformat (const struct floatformat **format)
1156 /* Just print out one of them - this is only for diagnostics. */
1157 return format[0]->name;
1162 # gdbarch open the gdbarch object
1164 printf "/* Maintain the struct gdbarch object */\n"
1166 printf "struct gdbarch\n"
1168 printf " /* Has this architecture been fully initialized? */\n"
1169 printf " int initialized_p;\n"
1171 printf " /* An obstack bound to the lifetime of the architecture. */\n"
1172 printf " struct obstack *obstack;\n"
1174 printf " /* basic architectural information */\n"
1175 function_list |
while do_read
1179 printf " ${returntype} ${function};\n"
1183 printf " /* target specific vector. */\n"
1184 printf " struct gdbarch_tdep *tdep;\n"
1185 printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
1187 printf " /* per-architecture data-pointers */\n"
1188 printf " unsigned nr_data;\n"
1189 printf " void **data;\n"
1191 printf " /* per-architecture swap-regions */\n"
1192 printf " struct gdbarch_swap *swap;\n"
1195 /* Multi-arch values.
1197 When extending this structure you must:
1199 Add the field below.
1201 Declare set/get functions and define the corresponding
1204 gdbarch_alloc(): If zero/NULL is not a suitable default,
1205 initialize the new field.
1207 verify_gdbarch(): Confirm that the target updated the field
1210 gdbarch_dump(): Add a fprintf_unfiltered call so that the new
1213 \`\`startup_gdbarch()'': Append an initial value to the static
1214 variable (base values on the host's c-type system).
1216 get_gdbarch(): Implement the set/get functions (probably using
1217 the macro's as shortcuts).
1222 function_list |
while do_read
1224 if class_is_variable_p
1226 printf " ${returntype} ${function};\n"
1227 elif class_is_function_p
1229 printf " gdbarch_${function}_ftype *${function};\n"
1234 # A pre-initialized vector
1238 /* The default architecture uses host values (for want of a better
1242 printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n"
1244 printf "struct gdbarch startup_gdbarch =\n"
1246 printf " 1, /* Always initialized. */\n"
1247 printf " NULL, /* The obstack. */\n"
1248 printf " /* basic architecture information */\n"
1249 function_list |
while do_read
1253 printf " ${staticdefault}, /* ${function} */\n"
1257 /* target specific vector and its dump routine */
1259 /*per-architecture data-pointers and swap regions */
1261 /* Multi-arch values */
1263 function_list |
while do_read
1265 if class_is_function_p || class_is_variable_p
1267 printf " ${staticdefault}, /* ${function} */\n"
1271 /* startup_gdbarch() */
1274 struct gdbarch *current_gdbarch = &startup_gdbarch;
1277 # Create a new gdbarch struct
1280 /* Create a new \`\`struct gdbarch'' based on information provided by
1281 \`\`struct gdbarch_info''. */
1286 gdbarch_alloc (const struct gdbarch_info *info,
1287 struct gdbarch_tdep *tdep)
1289 /* NOTE: The new architecture variable is named \`\`current_gdbarch''
1290 so that macros such as TARGET_ARCHITECTURE, when expanded, refer to
1291 the current local architecture and not the previous global
1292 architecture. This ensures that the new architectures initial
1293 values are not influenced by the previous architecture. Once
1294 everything is parameterised with gdbarch, this will go away. */
1295 struct gdbarch *current_gdbarch;
1297 /* Create an obstack for allocating all the per-architecture memory,
1298 then use that to allocate the architecture vector. */
1299 struct obstack *obstack = XMALLOC (struct obstack);
1300 obstack_init (obstack);
1301 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch));
1302 memset (current_gdbarch, 0, sizeof (*current_gdbarch));
1303 current_gdbarch->obstack = obstack;
1305 alloc_gdbarch_data (current_gdbarch);
1307 current_gdbarch->tdep = tdep;
1310 function_list |
while do_read
1314 printf " current_gdbarch->${function} = info->${function};\n"
1318 printf " /* Force the explicit initialization of these. */\n"
1319 function_list |
while do_read
1321 if class_is_function_p || class_is_variable_p
1323 if [ -n "${predefault}" -a "x${predefault}" != "x0" ]
1325 printf " current_gdbarch->${function} = ${predefault};\n"
1330 /* gdbarch_alloc() */
1332 return current_gdbarch;
1336 # Free a gdbarch struct.
1340 /* Allocate extra space using the per-architecture obstack. */
1343 gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
1345 void *data = obstack_alloc (arch->obstack, size);
1346 memset (data, 0, size);
1351 /* Free a gdbarch struct. This should never happen in normal
1352 operation --- once you've created a gdbarch, you keep it around.
1353 However, if an architecture's init function encounters an error
1354 building the structure, it may need to clean up a partially
1355 constructed gdbarch. */
1358 gdbarch_free (struct gdbarch *arch)
1360 struct obstack *obstack;
1361 gdb_assert (arch != NULL);
1362 gdb_assert (!arch->initialized_p);
1363 obstack = arch->obstack;
1364 obstack_free (obstack, 0); /* Includes the ARCH. */
1369 # verify a new architecture
1373 /* Ensure that all values in a GDBARCH are reasonable. */
1375 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1376 just happens to match the global variable \`\`current_gdbarch''. That
1377 way macros refering to that variable get the local and not the global
1378 version - ulgh. Once everything is parameterised with gdbarch, this
1382 verify_gdbarch (struct gdbarch *current_gdbarch)
1384 struct ui_file *log;
1385 struct cleanup *cleanups;
1388 log = mem_fileopen ();
1389 cleanups = make_cleanup_ui_file_delete (log);
1391 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
1392 fprintf_unfiltered (log, "\n\tbyte-order");
1393 if (current_gdbarch->bfd_arch_info == NULL)
1394 fprintf_unfiltered (log, "\n\tbfd_arch_info");
1395 /* Check those that need to be defined for the given multi-arch level. */
1397 function_list |
while do_read
1399 if class_is_function_p || class_is_variable_p
1401 if [ "x${invalid_p}" = "x0" ]
1403 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1404 elif class_is_predicate_p
1406 printf " /* Skip verify of ${function}, has predicate */\n"
1407 # FIXME: See do_read for potential simplification
1408 elif [ -n "${invalid_p}" -a -n "${postdefault}" ]
1410 printf " if (${invalid_p})\n"
1411 printf " current_gdbarch->${function} = ${postdefault};\n"
1412 elif [ -n "${predefault}" -a -n "${postdefault}" ]
1414 printf " if (current_gdbarch->${function} == ${predefault})\n"
1415 printf " current_gdbarch->${function} = ${postdefault};\n"
1416 elif [ -n "${postdefault}" ]
1418 printf " if (current_gdbarch->${function} == 0)\n"
1419 printf " current_gdbarch->${function} = ${postdefault};\n"
1420 elif [ -n "${invalid_p}" ]
1422 printf " if (${invalid_p})\n"
1423 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1424 elif [ -n "${predefault}" ]
1426 printf " if (current_gdbarch->${function} == ${predefault})\n"
1427 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
1432 buf = ui_file_xstrdup (log, &dummy);
1433 make_cleanup (xfree, buf);
1434 if (strlen (buf) > 0)
1435 internal_error (__FILE__, __LINE__,
1436 _("verify_gdbarch: the following are invalid ...%s"),
1438 do_cleanups (cleanups);
1442 # dump the structure
1446 /* Print out the details of the current architecture. */
1448 /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it
1449 just happens to match the global variable \`\`current_gdbarch''. That
1450 way macros refering to that variable get the local and not the global
1451 version - ulgh. Once everything is parameterised with gdbarch, this
1455 gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
1457 const char *gdb_xm_file = "<not-defined>";
1458 const char *gdb_nm_file = "<not-defined>";
1459 const char *gdb_tm_file = "<not-defined>";
1460 #if defined (GDB_XM_FILE)
1461 gdb_xm_file = GDB_XM_FILE;
1463 fprintf_unfiltered (file,
1464 "gdbarch_dump: GDB_XM_FILE = %s\\n",
1466 #if defined (GDB_NM_FILE)
1467 gdb_nm_file = GDB_NM_FILE;
1469 fprintf_unfiltered (file,
1470 "gdbarch_dump: GDB_NM_FILE = %s\\n",
1472 #if defined (GDB_TM_FILE)
1473 gdb_tm_file = GDB_TM_FILE;
1475 fprintf_unfiltered (file,
1476 "gdbarch_dump: GDB_TM_FILE = %s\\n",
1479 function_list |
sort -t: -k 4 |
while do_read
1481 # First the predicate
1482 if class_is_predicate_p
1484 if test -n "${macro}"
1486 printf "#ifdef ${macro}_P\n"
1487 printf " fprintf_unfiltered (file,\n"
1488 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1489 printf " \"${macro}_P()\",\n"
1490 printf " XSTRING (${macro}_P ()));\n"
1493 printf " fprintf_unfiltered (file,\n"
1494 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
1495 printf " gdbarch_${function}_p (current_gdbarch));\n"
1497 # Print the macro definition.
1498 if test -n "${macro}"
1500 printf "#ifdef ${macro}\n"
1501 if class_is_function_p
1503 printf " fprintf_unfiltered (file,\n"
1504 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n"
1505 printf " \"${macro}(${actual})\",\n"
1506 printf " XSTRING (${macro} (${actual})));\n"
1508 printf " fprintf_unfiltered (file,\n"
1509 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n"
1510 printf " XSTRING (${macro}));\n"
1514 # Print the corresponding value.
1515 if class_is_function_p
1517 printf " fprintf_unfiltered (file,\n"
1518 printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n"
1519 printf " (long) current_gdbarch->${function});\n"
1522 case "${print}:${returntype}" in
1525 print
="paddr_nz (current_gdbarch->${function})"
1529 print
="paddr_d (current_gdbarch->${function})"
1535 printf " fprintf_unfiltered (file,\n"
1536 printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
1537 printf " ${print});\n"
1541 if (current_gdbarch->dump_tdep != NULL)
1542 current_gdbarch->dump_tdep (current_gdbarch, file);
1550 struct gdbarch_tdep *
1551 gdbarch_tdep (struct gdbarch *gdbarch)
1553 if (gdbarch_debug >= 2)
1554 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
1555 return gdbarch->tdep;
1559 function_list |
while do_read
1561 if class_is_predicate_p
1565 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
1567 printf " gdb_assert (gdbarch != NULL);\n"
1568 printf " return ${predicate};\n"
1571 if class_is_function_p
1574 printf "${returntype}\n"
1575 if [ "x${formal}" = "xvoid" ]
1577 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1579 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
1582 printf " gdb_assert (gdbarch != NULL);\n"
1583 printf " gdb_assert (gdbarch->${function} != NULL);\n"
1584 if class_is_predicate_p
&& test -n "${predefault}"
1586 # Allow a call to a function with a predicate.
1587 printf " /* Do not check predicate: ${predicate}, allow call. */\n"
1589 printf " if (gdbarch_debug >= 2)\n"
1590 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1591 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
1593 if class_is_multiarch_p
1600 if class_is_multiarch_p
1602 params
="gdbarch, ${actual}"
1607 if [ "x${returntype}" = "xvoid" ]
1609 printf " gdbarch->${function} (${params});\n"
1611 printf " return gdbarch->${function} (${params});\n"
1616 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1617 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
1619 printf " gdbarch->${function} = ${function};\n"
1621 elif class_is_variable_p
1624 printf "${returntype}\n"
1625 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1627 printf " gdb_assert (gdbarch != NULL);\n"
1628 if [ "x${invalid_p}" = "x0" ]
1630 printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
1631 elif [ -n "${invalid_p}" ]
1633 printf " /* Check variable is valid. */\n"
1634 printf " gdb_assert (!(${invalid_p}));\n"
1635 elif [ -n "${predefault}" ]
1637 printf " /* Check variable changed from pre-default. */\n"
1638 printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
1640 printf " if (gdbarch_debug >= 2)\n"
1641 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1642 printf " return gdbarch->${function};\n"
1646 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
1647 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
1649 printf " gdbarch->${function} = ${function};\n"
1651 elif class_is_info_p
1654 printf "${returntype}\n"
1655 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
1657 printf " gdb_assert (gdbarch != NULL);\n"
1658 printf " if (gdbarch_debug >= 2)\n"
1659 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
1660 printf " return gdbarch->${function};\n"
1665 # All the trailing guff
1669 /* Keep a registry of per-architecture data-pointers required by GDB
1676 gdbarch_data_pre_init_ftype *pre_init;
1677 gdbarch_data_post_init_ftype *post_init;
1680 struct gdbarch_data_registration
1682 struct gdbarch_data *data;
1683 struct gdbarch_data_registration *next;
1686 struct gdbarch_data_registry
1689 struct gdbarch_data_registration *registrations;
1692 struct gdbarch_data_registry gdbarch_data_registry =
1697 static struct gdbarch_data *
1698 gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
1699 gdbarch_data_post_init_ftype *post_init)
1701 struct gdbarch_data_registration **curr;
1702 /* Append the new registraration. */
1703 for (curr = &gdbarch_data_registry.registrations;
1705 curr = &(*curr)->next);
1706 (*curr) = XMALLOC (struct gdbarch_data_registration);
1707 (*curr)->next = NULL;
1708 (*curr)->data = XMALLOC (struct gdbarch_data);
1709 (*curr)->data->index = gdbarch_data_registry.nr++;
1710 (*curr)->data->pre_init = pre_init;
1711 (*curr)->data->post_init = post_init;
1712 (*curr)->data->init_p = 1;
1713 return (*curr)->data;
1716 struct gdbarch_data *
1717 gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
1719 return gdbarch_data_register (pre_init, NULL);
1722 struct gdbarch_data *
1723 gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
1725 return gdbarch_data_register (NULL, post_init);
1728 /* Create/delete the gdbarch data vector. */
1731 alloc_gdbarch_data (struct gdbarch *gdbarch)
1733 gdb_assert (gdbarch->data == NULL);
1734 gdbarch->nr_data = gdbarch_data_registry.nr;
1735 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
1738 /* Initialize the current value of the specified per-architecture
1742 deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1743 struct gdbarch_data *data,
1746 gdb_assert (data->index < gdbarch->nr_data);
1747 gdb_assert (gdbarch->data[data->index] == NULL);
1748 gdb_assert (data->pre_init == NULL);
1749 gdbarch->data[data->index] = pointer;
1752 /* Return the current value of the specified per-architecture
1756 gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
1758 gdb_assert (data->index < gdbarch->nr_data);
1759 if (gdbarch->data[data->index] == NULL)
1761 /* The data-pointer isn't initialized, call init() to get a
1763 if (data->pre_init != NULL)
1764 /* Mid architecture creation: pass just the obstack, and not
1765 the entire architecture, as that way it isn't possible for
1766 pre-init code to refer to undefined architecture
1768 gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
1769 else if (gdbarch->initialized_p
1770 && data->post_init != NULL)
1771 /* Post architecture creation: pass the entire architecture
1772 (as all fields are valid), but be careful to also detect
1773 recursive references. */
1775 gdb_assert (data->init_p);
1777 gdbarch->data[data->index] = data->post_init (gdbarch);
1781 /* The architecture initialization hasn't completed - punt -
1782 hope that the caller knows what they are doing. Once
1783 deprecated_set_gdbarch_data has been initialized, this can be
1784 changed to an internal error. */
1786 gdb_assert (gdbarch->data[data->index] != NULL);
1788 return gdbarch->data[data->index];
1792 /* Keep a registry of the architectures known by GDB. */
1794 struct gdbarch_registration
1796 enum bfd_architecture bfd_architecture;
1797 gdbarch_init_ftype *init;
1798 gdbarch_dump_tdep_ftype *dump_tdep;
1799 struct gdbarch_list *arches;
1800 struct gdbarch_registration *next;
1803 static struct gdbarch_registration *gdbarch_registry = NULL;
1806 append_name (const char ***buf, int *nr, const char *name)
1808 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
1814 gdbarch_printable_names (void)
1816 /* Accumulate a list of names based on the registed list of
1818 enum bfd_architecture a;
1820 const char **arches = NULL;
1821 struct gdbarch_registration *rego;
1822 for (rego = gdbarch_registry;
1826 const struct bfd_arch_info *ap;
1827 ap = bfd_lookup_arch (rego->bfd_architecture, 0);
1829 internal_error (__FILE__, __LINE__,
1830 _("gdbarch_architecture_names: multi-arch unknown"));
1833 append_name (&arches, &nr_arches, ap->printable_name);
1838 append_name (&arches, &nr_arches, NULL);
1844 gdbarch_register (enum bfd_architecture bfd_architecture,
1845 gdbarch_init_ftype *init,
1846 gdbarch_dump_tdep_ftype *dump_tdep)
1848 struct gdbarch_registration **curr;
1849 const struct bfd_arch_info *bfd_arch_info;
1850 /* Check that BFD recognizes this architecture */
1851 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
1852 if (bfd_arch_info == NULL)
1854 internal_error (__FILE__, __LINE__,
1855 _("gdbarch: Attempt to register unknown architecture (%d)"),
1858 /* Check that we haven't seen this architecture before */
1859 for (curr = &gdbarch_registry;
1861 curr = &(*curr)->next)
1863 if (bfd_architecture == (*curr)->bfd_architecture)
1864 internal_error (__FILE__, __LINE__,
1865 _("gdbarch: Duplicate registraration of architecture (%s)"),
1866 bfd_arch_info->printable_name);
1870 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n",
1871 bfd_arch_info->printable_name,
1874 (*curr) = XMALLOC (struct gdbarch_registration);
1875 (*curr)->bfd_architecture = bfd_architecture;
1876 (*curr)->init = init;
1877 (*curr)->dump_tdep = dump_tdep;
1878 (*curr)->arches = NULL;
1879 (*curr)->next = NULL;
1883 register_gdbarch_init (enum bfd_architecture bfd_architecture,
1884 gdbarch_init_ftype *init)
1886 gdbarch_register (bfd_architecture, init, NULL);
1890 /* Look for an architecture using gdbarch_info. */
1892 struct gdbarch_list *
1893 gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
1894 const struct gdbarch_info *info)
1896 for (; arches != NULL; arches = arches->next)
1898 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
1900 if (info->byte_order != arches->gdbarch->byte_order)
1902 if (info->osabi != arches->gdbarch->osabi)
1904 if (info->target_desc != arches->gdbarch->target_desc)
1912 /* Find an architecture that matches the specified INFO. Create a new
1913 architecture if needed. Return that new architecture. Assumes
1914 that there is no current architecture. */
1916 static struct gdbarch *
1917 find_arch_by_info (struct gdbarch_info info)
1919 struct gdbarch *new_gdbarch;
1920 struct gdbarch_registration *rego;
1922 /* The existing architecture has been swapped out - all this code
1923 works from a clean slate. */
1924 gdb_assert (current_gdbarch == NULL);
1926 /* Fill in missing parts of the INFO struct using a number of
1927 sources: "set ..."; INFOabfd supplied; and the global
1929 gdbarch_info_fill (&info);
1931 /* Must have found some sort of architecture. */
1932 gdb_assert (info.bfd_arch_info != NULL);
1936 fprintf_unfiltered (gdb_stdlog,
1937 "find_arch_by_info: info.bfd_arch_info %s\n",
1938 (info.bfd_arch_info != NULL
1939 ? info.bfd_arch_info->printable_name
1941 fprintf_unfiltered (gdb_stdlog,
1942 "find_arch_by_info: info.byte_order %d (%s)\n",
1944 (info.byte_order == BFD_ENDIAN_BIG ? "big"
1945 : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
1947 fprintf_unfiltered (gdb_stdlog,
1948 "find_arch_by_info: info.osabi %d (%s)\n",
1949 info.osabi, gdbarch_osabi_name (info.osabi));
1950 fprintf_unfiltered (gdb_stdlog,
1951 "find_arch_by_info: info.abfd 0x%lx\n",
1953 fprintf_unfiltered (gdb_stdlog,
1954 "find_arch_by_info: info.tdep_info 0x%lx\n",
1955 (long) info.tdep_info);
1958 /* Find the tdep code that knows about this architecture. */
1959 for (rego = gdbarch_registry;
1962 if (rego->bfd_architecture == info.bfd_arch_info->arch)
1967 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1968 "No matching architecture\n");
1972 /* Ask the tdep code for an architecture that matches "info". */
1973 new_gdbarch = rego->init (info, rego->arches);
1975 /* Did the tdep code like it? No. Reject the change and revert to
1976 the old architecture. */
1977 if (new_gdbarch == NULL)
1980 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1981 "Target rejected architecture\n");
1985 /* Is this a pre-existing architecture (as determined by already
1986 being initialized)? Move it to the front of the architecture
1987 list (keeping the list sorted Most Recently Used). */
1988 if (new_gdbarch->initialized_p)
1990 struct gdbarch_list **list;
1991 struct gdbarch_list *this;
1993 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
1994 "Previous architecture 0x%08lx (%s) selected\n",
1996 new_gdbarch->bfd_arch_info->printable_name);
1997 /* Find the existing arch in the list. */
1998 for (list = ®o->arches;
1999 (*list) != NULL && (*list)->gdbarch != new_gdbarch;
2000 list = &(*list)->next);
2001 /* It had better be in the list of architectures. */
2002 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
2005 (*list) = this->next;
2006 /* Insert THIS at the front. */
2007 this->next = rego->arches;
2008 rego->arches = this;
2013 /* It's a new architecture. */
2015 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: "
2016 "New architecture 0x%08lx (%s) selected\n",
2018 new_gdbarch->bfd_arch_info->printable_name);
2020 /* Insert the new architecture into the front of the architecture
2021 list (keep the list sorted Most Recently Used). */
2023 struct gdbarch_list *this = XMALLOC (struct gdbarch_list);
2024 this->next = rego->arches;
2025 this->gdbarch = new_gdbarch;
2026 rego->arches = this;
2029 /* Check that the newly installed architecture is valid. Plug in
2030 any post init values. */
2031 new_gdbarch->dump_tdep = rego->dump_tdep;
2032 verify_gdbarch (new_gdbarch);
2033 new_gdbarch->initialized_p = 1;
2036 gdbarch_dump (new_gdbarch, gdb_stdlog);
2042 gdbarch_find_by_info (struct gdbarch_info info)
2044 struct gdbarch *new_gdbarch;
2046 /* Save the previously selected architecture, setting the global to
2047 NULL. This stops things like gdbarch->init() trying to use the
2048 previous architecture's configuration. The previous architecture
2049 may not even be of the same architecture family. The most recent
2050 architecture of the same family is found at the head of the
2051 rego->arches list. */
2052 struct gdbarch *old_gdbarch = current_gdbarch;
2053 current_gdbarch = NULL;
2055 /* Find the specified architecture. */
2056 new_gdbarch = find_arch_by_info (info);
2058 /* Restore the existing architecture. */
2059 gdb_assert (current_gdbarch == NULL);
2060 current_gdbarch = old_gdbarch;
2065 /* Make the specified architecture current. */
2068 deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch)
2070 gdb_assert (new_gdbarch != NULL);
2071 gdb_assert (current_gdbarch != NULL);
2072 gdb_assert (new_gdbarch->initialized_p);
2073 current_gdbarch = new_gdbarch;
2074 architecture_changed_event ();
2075 reinit_frame_cache ();
2078 extern void _initialize_gdbarch (void);
2081 _initialize_gdbarch (void)
2083 struct cmd_list_element *c;
2085 add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
2086 Set architecture debugging."), _("\\
2087 Show architecture debugging."), _("\\
2088 When non-zero, architecture debugging is enabled."),
2091 &setdebuglist, &showdebuglist);
2097 #../move-if-change new-gdbarch.c gdbarch.c
2098 compare_new gdbarch.c